xref: /illumos-gate/usr/src/uts/common/io/cxgbe/common/t4_hw.c (revision ece8d79431327a5ada7d885f1e001273dff26c72)

/*
 * This file and its contents are supplied under the terms of the
 * Common Development and Distribution License ("CDDL"), version 1.0.
 * You may only use this file in accordance with the terms of version
 * 1.0 of the CDDL.
 *
 * A full copy of the text of the CDDL should have accompanied this
 * source. A copy of the CDDL is also available via the Internet at
 * http://www.illumos.org/license/CDDL.
 */

/*
 * This file is part of the Chelsio T4/T5/T6 Ethernet driver.
 *
 * Copyright (C) 2003-2019 Chelsio Communications.  All rights reserved.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the LICENSE file included in this
 * release for licensing terms and conditions.
 */

/*
 * Copyright 2020 RackTop Systems, Inc.
 */

#include "common.h"
#include "t4_regs.h"
#include "t4_regs_values.h"
#include "t4fw_interface.h"

/**
 *	t4_wait_op_done_val - wait until an operation is completed
 *	@adapter: the adapter performing the operation
 *	@reg: the register to check for completion
 *	@mask: a single-bit field within @reg that indicates completion
 *	@polarity: the value of the field when the operation is completed
 *	@attempts: number of check iterations
 *	@delay: delay in usecs between iterations
 *	@valp: where to store the value of the register at completion time
 *
 *	Wait until an operation is completed by checking a bit in a register
 *	up to @attempts times.  If @valp is not NULL the value of the register
 *	at the time it indicated completion is stored there.  Returns 0 if the
 *	operation completes and	-EAGAIN	otherwise.
 */
static int t4_wait_op_done_val(struct adapter *adapter, int reg, u32 mask,
			       int polarity, int attempts, int delay, u32 *valp)
{
	while (1) {
		u32 val = t4_read_reg(adapter, reg);

		if (!!(val & mask) == polarity) {
			if (valp)
				*valp = val;
			return 0;
		}
		if (--attempts == 0)
			return -EAGAIN;
		if (delay)
			udelay(delay);
	}
}

static inline int t4_wait_op_done(struct adapter *adapter, int reg, u32 mask,
				  int polarity, int attempts, int delay)
{
	return t4_wait_op_done_val(adapter, reg, mask, polarity, attempts,
				   delay, NULL);
}

/**
 *	t4_set_reg_field - set a register field to a value
 *	@adapter: the adapter to program
 *	@addr: the register address
 *	@mask: specifies the portion of the register to modify
 *	@val: the new value for the register field
 *
 *	Sets a register field specified by the supplied mask to the
 *	given value.
 */
void t4_set_reg_field(struct adapter *adapter, unsigned int addr, u32 mask,
		      u32 val)
{
	u32 v = t4_read_reg(adapter, addr) & ~mask;

	t4_write_reg(adapter, addr, v | val);
	(void) t4_read_reg(adapter, addr);      /* flush */
}

/**
 *	t4_read_indirect - read indirectly addressed registers
 *	@adap: the adapter
 *	@addr_reg: register holding the indirect address
 *	@data_reg: register holding the value of the indirect register
 *	@vals: where the read register values are stored
 *	@nregs: how many indirect registers to read
 *	@start_idx: index of first indirect register to read
 *
 *	Reads registers that are accessed indirectly through an address/data
 *	register pair.
 */
void t4_read_indirect(struct adapter *adap, unsigned int addr_reg,
			     unsigned int data_reg, u32 *vals,
			     unsigned int nregs, unsigned int start_idx)
{
	while (nregs--) {
		t4_write_reg(adap, addr_reg, start_idx);
		*vals++ = t4_read_reg(adap, data_reg);
		start_idx++;
	}
}

/**
 *	t4_write_indirect - write indirectly addressed registers
 *	@adap: the adapter
 *	@addr_reg: register holding the indirect addresses
 *	@data_reg: register holding the value for the indirect registers
 *	@vals: values to write
 *	@nregs: how many indirect registers to write
 *	@start_idx: address of first indirect register to write
 *
 *	Writes a sequential block of registers that are accessed indirectly
 *	through an address/data register pair.
 */
void t4_write_indirect(struct adapter *adap, unsigned int addr_reg,
		       unsigned int data_reg, const u32 *vals,
		       unsigned int nregs, unsigned int start_idx)
{
	while (nregs--) {
		t4_write_reg(adap, addr_reg, start_idx++);
		t4_write_reg(adap, data_reg, *vals++);
	}
}

/*
 * Read a 32-bit PCI Configuration Space register via the PCI-E backdoor
 * mechanism.  This guarantees that we get the real value even if we're
 * operating within a Virtual Machine and the Hypervisor is trapping our
 * Configuration Space accesses.
 *
 * N.B. This routine should only be used as a last resort: the firmware uses
 *      the backdoor registers on a regular basis and we can end up
 *      conflicting with it's uses!
 */
void t4_hw_pci_read_cfg4(struct adapter *adap, int reg, u32 *val)
{
	u32 req = V_FUNCTION(adap->pf) | V_REGISTER(reg);

	if (CHELSIO_CHIP_VERSION(adap->params.chip) <= CHELSIO_T5)
		req |= F_ENABLE;
	else
		req |= F_T6_ENABLE;

	if (is_t4(adap->params.chip))
		req |= F_LOCALCFG;

	t4_write_reg(adap, A_PCIE_CFG_SPACE_REQ, req);
	*val = t4_read_reg(adap, A_PCIE_CFG_SPACE_DATA);

	/* Reset F_ENABLE to 0 so reads of PCIE_CFG_SPACE_DATA won't cause a
	 * Configuration Space read.  (None of the other fields matter when
	 * F_ENABLE is 0 so a simple register write is easier than a
	 * read-modify-write via t4_set_reg_field().)
	 */
	t4_write_reg(adap, A_PCIE_CFG_SPACE_REQ, 0);
}

/*
 * t4_report_fw_error - report firmware error
 * @adap: the adapter
 *
 * The adapter firmware can indicate error conditions to the host.
 * If the firmware has indicated an error, print out the reason for
 * the firmware error.
 */
static void t4_report_fw_error(struct adapter *adap)
{
	static const char *const reason[] = {
		"Crash",			/* PCIE_FW_EVAL_CRASH */
		"During Device Preparation",	/* PCIE_FW_EVAL_PREP */
		"During Device Configuration",	/* PCIE_FW_EVAL_CONF */
		"During Device Initialization",	/* PCIE_FW_EVAL_INIT */
		"Unexpected Event",		/* PCIE_FW_EVAL_UNEXPECTEDEVENT */
		"Insufficient Airflow",		/* PCIE_FW_EVAL_OVERHEAT */
		"Device Shutdown",		/* PCIE_FW_EVAL_DEVICESHUTDOWN */
		"Reserved",			/* reserved */
	};
	u32 pcie_fw;

	pcie_fw = t4_read_reg(adap, A_PCIE_FW);
	if (pcie_fw & F_PCIE_FW_ERR) {
		CH_ERR(adap, "Firmware reports adapter error: %s\n",
			reason[G_PCIE_FW_EVAL(pcie_fw)]);
		adap->flags &= ~FW_OK;
	}
}

/*
 * Get the reply to a mailbox command and store it in @rpl in big-endian order.
 */
static void get_mbox_rpl(struct adapter *adap, __be64 *rpl, int nflit,
			 u32 mbox_addr)
{
	for ( ; nflit; nflit--, mbox_addr += 8)
		*rpl++ = cpu_to_be64(t4_read_reg64(adap, mbox_addr));
}

/*
 * Handle a FW assertion reported in a mailbox.
 */
static void fw_asrt(struct adapter *adap, struct fw_debug_cmd *asrt)
{
	CH_ALERT(adap,
		  "FW assertion at %.16s:%u, val0 %#x, val1 %#x\n",
		  asrt->u.assert.filename_0_7,
		  be32_to_cpu(asrt->u.assert.line),
		  be32_to_cpu(asrt->u.assert.x),
		  be32_to_cpu(asrt->u.assert.y));
}

#define X_CIM_PF_NOACCESS 0xeeeeeeee

/*
 * If the OS Driver wants busy waits to keep a watchdog happy, tap it during
 * busy loops which don't sleep.
 */
#ifdef T4_OS_NEEDS_TOUCH_NMI_WATCHDOG
#define T4_OS_TOUCH_NMI_WATCHDOG()	t4_os_touch_nmi_watchdog()
#else
#define T4_OS_TOUCH_NMI_WATCHDOG()
#endif

#ifdef T4_OS_LOG_MBOX_CMDS
/**
 *	t4_record_mbox - record a Firmware Mailbox Command/Reply in the log
 *	@adapter: the adapter
 *	@cmd: the Firmware Mailbox Command or Reply
 *	@size: command length in bytes
 *	@access: the time (ms) needed to access the Firmware Mailbox
 *	@execute: the time (ms) the command spent being executed
 */
static void t4_record_mbox(struct adapter *adapter,
			   const __be64 *cmd, unsigned int size,
			   int access, int execute)
{
	struct mbox_cmd_log *log = adapter->mbox_log;
	struct mbox_cmd *entry;
	int i;

	entry = mbox_cmd_log_entry(log, log->cursor++);
	if (log->cursor == log->size)
		log->cursor = 0;

	for (i = 0; i < size/8; i++)
		entry->cmd[i] = be64_to_cpu(cmd[i]);
	while (i < MBOX_LEN/8)
		entry->cmd[i++] = 0;
	entry->timestamp = t4_os_timestamp();
	entry->seqno = log->seqno++;
	entry->access = access;
	entry->execute = execute;
}

#define T4_RECORD_MBOX(__adapter, __cmd, __size, __access, __execute) \
	t4_record_mbox(__adapter, __cmd, __size, __access, __execute)

#else /* !T4_OS_LOG_MBOX_CMDS */

#define T4_RECORD_MBOX(__adapter, __cmd, __size, __access, __execute) \
	/* nothing */

#endif /* !T4_OS_LOG_MBOX_CMDS */

/**
 *	t4_record_mbox_marker - record a marker in the mailbox log
 *	@adapter: the adapter
 *	@marker: byte array marker
 *	@size: marker size in bytes
 *
 *	We inject a "fake mailbox command" into the Firmware Mailbox Log
 *	using a known command token and then the bytes of the specified
 *	marker.  This lets debugging code inject markers into the log to
 *	help identify which commands are in response to higher level code.
 */
void t4_record_mbox_marker(struct adapter *adapter,
			   const void *marker, unsigned int size)
{
#ifdef T4_OS_LOG_MBOX_CMDS
	__be64 marker_cmd[MBOX_LEN/8];
	const unsigned int max_marker = sizeof marker_cmd - sizeof (__be64);
	unsigned int marker_cmd_size;

	if (size > max_marker)
		size = max_marker;

	marker_cmd[0] = cpu_to_be64(~0LLU);
	memcpy(&marker_cmd[1], marker, size);
	memset((unsigned char *)&marker_cmd[1] + size, 0, max_marker - size);
	marker_cmd_size = sizeof (__be64) + roundup(size, sizeof (__be64));

	t4_record_mbox(adapter, marker_cmd, marker_cmd_size, 0, 0);
#endif /* T4_OS_LOG_MBOX_CMDS */
}

/*
 * Delay time in microseconds to wait for mailbox access/fw reply
 * to mailbox command
 */
#define MIN_MBOX_CMD_DELAY 900
#define MBOX_CMD_DELAY 1000

/**
 *	t4_wr_mbox_meat_timeout - send a command to FW through the given mailbox
 *	@adap: the adapter
 *	@mbox: index of the mailbox to use
 *	@cmd: the command to write
 *	@size: command length in bytes
 *	@rpl: where to optionally store the reply
 *	@sleep_ok: if true we may sleep while awaiting command completion
 *	@timeout: time to wait for command to finish before timing out
 *		(negative implies @sleep_ok=false)
 *
 *	Sends the given command to FW through the selected mailbox and waits
 *	for the FW to execute the command.  If @rpl is not %NULL it is used to
 *	store the FW's reply to the command.  The command and its optional
 *	reply are of the same length.  Some FW commands like RESET and
 *	INITIALIZE can take a considerable amount of time to execute.
 *	@sleep_ok determines whether we may sleep while awaiting the response.
 *	If sleeping is allowed we use progressive backoff otherwise we spin.
 *	Note that passing in a negative @timeout is an alternate mechanism
 *	for specifying @sleep_ok=false.  This is useful when a higher level
 *	interface allows for specification of @timeout but not @sleep_ok ...
 *
 *	The return value is 0 on success or a negative errno on failure.  A
 *	failure can happen either because we are not able to execute the
 *	command or FW executes it but signals an error.  In the latter case
 *	the return value is the error code indicated by FW (negated).
 */
int t4_wr_mbox_meat_timeout(struct adapter *adap, int mbox, const void *cmd,
			    int size, void *rpl, bool sleep_ok, int timeout)
{
#ifdef T4_OS_LOG_MBOX_CMDS
	u16 access = 0;
#endif /* T4_OS_LOG_MBOX_CMDS */
	u32 v;
	u64 res;
	int i, ret;
	const __be64 *p = cmd;
	u32 data_reg = PF_REG(mbox, A_CIM_PF_MAILBOX_DATA);
	u32 ctl_reg = PF_REG(mbox, A_CIM_PF_MAILBOX_CTRL);
	u32 ctl;
	__be64 cmd_rpl[MBOX_LEN/8];
	struct t4_mbox_list entry;
	u32 pcie_fw;

	if ((size & 15) || size > MBOX_LEN)
		return -EINVAL;

	/*
	 * If we have a negative timeout, that implies that we can't sleep.
	 */
	if (timeout < 0) {
		sleep_ok = false;
		timeout = -timeout;
	}

	/*
	 * Queue ourselves onto the mailbox access list.  When our entry is at
	 * the front of the list, we have rights to access the mailbox.  So we
	 * wait [for a while] till we're at the front [or bail out with an
	 * EBUSY] ...
	 */
	t4_mbox_list_add(adap, &entry);

	for (i = 0; ; i++) {
		/*
		 * If we've waited too long, return a busy indication.  This
		 * really ought to be based on our initial position in the
		 * mailbox access list but this is a start.  We very rarely
		 * contend on access to the mailbox ...  Also check for a
		 * firmware error which we'll report as a device error.
		 */
		pcie_fw = t4_read_reg(adap, A_PCIE_FW);
		if (i > 4*timeout || (pcie_fw & F_PCIE_FW_ERR)) {
			t4_mbox_list_del(adap, &entry);
			t4_report_fw_error(adap);
			ret = (pcie_fw & F_PCIE_FW_ERR) ? -ENXIO : -EBUSY;
			T4_RECORD_MBOX(adap, cmd, size, ret, 0);
			return ret;
		}

		/*
		 * If we're at the head, break out and start the mailbox
		 * protocol.
		 */
		if (t4_mbox_list_first_entry(adap) == &entry)
			break;

		/*
		 * Delay for a bit before checking again ...
		 */
		if (sleep_ok) {
			usleep_range(MIN_MBOX_CMD_DELAY, MBOX_CMD_DELAY);
		} else {
			T4_OS_TOUCH_NMI_WATCHDOG();
			udelay(MBOX_CMD_DELAY);
		}
	}
#ifdef T4_OS_LOG_MBOX_CMDS
	access = i;
#endif /* T4_OS_LOG_MBOX_CMDS */

	/*
	 * Attempt to gain access to the mailbox.
	 */
	for (i = 0; i < 4; i++) {
		ctl = t4_read_reg(adap, ctl_reg);
		v = G_MBOWNER(ctl);
		if (v != X_MBOWNER_NONE)
			break;
	}

	/*
	 * If we were unable to gain access, dequeue ourselves from the
	 * mailbox atomic access list and report the error to our caller.
	 */
	if (v != X_MBOWNER_PL) {
		t4_mbox_list_del(adap, &entry);
		t4_report_fw_error(adap);
		ret = (v == X_MBOWNER_FW) ? -EBUSY : -ETIMEDOUT;
		T4_RECORD_MBOX(adap, cmd, size, access, ret);
		return ret;
	}

	/*
	 * If we gain ownership of the mailbox and there's a "valid" message
	 * in it, this is likely an asynchronous error message from the
	 * firmware.  So we'll report that and then proceed on with attempting
	 * to issue our own command ... which may well fail if the error
	 * presaged the firmware crashing ...
	 */
	if (ctl & F_MBMSGVALID) {
		CH_ERR(adap, "found VALID command in mbox %u: "
		       "%llx %llx %llx %llx %llx %llx %llx %llx\n", mbox,
		       (unsigned long long)t4_read_reg64(adap, data_reg),
		       (unsigned long long)t4_read_reg64(adap, data_reg + 8),
		       (unsigned long long)t4_read_reg64(adap, data_reg + 16),
		       (unsigned long long)t4_read_reg64(adap, data_reg + 24),
		       (unsigned long long)t4_read_reg64(adap, data_reg + 32),
		       (unsigned long long)t4_read_reg64(adap, data_reg + 40),
		       (unsigned long long)t4_read_reg64(adap, data_reg + 48),
		       (unsigned long long)t4_read_reg64(adap, data_reg + 56));
	}

	/*
	 * Copy in the new mailbox command and send it on its way ...
	 */
	T4_RECORD_MBOX(adap, cmd, size, access, 0);
	for (i = 0; i < size; i += 8, p++)
		t4_write_reg64(adap, data_reg + i, be64_to_cpu(*p));

	/*
	 * XXX It's not clear that we need this anymore now
	 * XXX that we have mailbox logging ...
	 */
	CH_DUMP_MBOX(adap, mbox, data_reg, size / 8);

	t4_write_reg(adap, ctl_reg, F_MBMSGVALID | V_MBOWNER(X_MBOWNER_FW));
	(void) t4_read_reg(adap, ctl_reg);	/* flush write */

	/*
	 * Loop waiting for the reply; bail out if we time out or the firmware
	 * reports an error.
	 */
	for (i = 0;
	     !((pcie_fw = t4_read_reg(adap, A_PCIE_FW)) & F_PCIE_FW_ERR) &&
	     i < timeout;
	     i++) {
		if (sleep_ok) {
			usleep_range(MIN_MBOX_CMD_DELAY, MBOX_CMD_DELAY);
		} else {
			T4_OS_TOUCH_NMI_WATCHDOG();
			udelay(MBOX_CMD_DELAY);
		}

		v = t4_read_reg(adap, ctl_reg);
		if (v == X_CIM_PF_NOACCESS)
			continue;
		if (G_MBOWNER(v) == X_MBOWNER_PL) {
			if (!(v & F_MBMSGVALID)) {
				t4_write_reg(adap, ctl_reg,
					     V_MBOWNER(X_MBOWNER_NONE));
				continue;
			}

			/*
			 * Retrieve the command reply and release the mailbox.
			 */
			get_mbox_rpl(adap, cmd_rpl, size/8, data_reg);
			t4_write_reg(adap, ctl_reg, V_MBOWNER(X_MBOWNER_NONE));
			t4_mbox_list_del(adap, &entry);

			T4_RECORD_MBOX(adap, cmd_rpl, size, access, i + 1);

			/*
			 * XXX It's not clear that we need this anymore now
			 * XXX that we have mailbox logging ...
			 */
			CH_DUMP_MBOX(adap, mbox, data_reg, size / 8);
			CH_MSG(adap, INFO, HW,
			       "command completed in %d ms (%ssleeping)\n",
			       i + 1, sleep_ok ? "" : "non-");

			res = be64_to_cpu(cmd_rpl[0]);
			if (G_FW_CMD_OP(res >> 32) == FW_DEBUG_CMD) {
				fw_asrt(adap, (struct fw_debug_cmd *)cmd_rpl);
				res = V_FW_CMD_RETVAL(EIO);
			} else if (rpl)
				memcpy(rpl, cmd_rpl, size);
			return -G_FW_CMD_RETVAL((int)res);
		}
	}

	/*
	 * We timed out waiting for a reply to our mailbox command.  Report
	 * the error and also check to see if the firmware reported any
	 * errors ...
	 */
	t4_mbox_list_del(adap, &entry);

	ret = (pcie_fw & F_PCIE_FW_ERR) ? -ENXIO : -ETIMEDOUT;
	T4_RECORD_MBOX(adap, cmd, size, access, ret);
	CH_ERR(adap, "command 0x%x in mailbox %d timed out\n",
	       *(const u8 *)cmd, mbox);

	t4_report_fw_error(adap);
	t4_fatal_err(adap);
	return ret;
}

#ifdef CONFIG_CUDBG
/*
 * The maximum number of times to iterate for FW reply before
 * issuing a mailbox timeout
 */
#define FW_REPLY_WAIT_LOOP 6000000

/**
 *	t4_wr_mbox_meat_timeout_panic - send a command to FW through the given
 *	mailbox. This function is a minimal version of t4_wr_mbox_meat_timeout()
 *	and is only invoked during a kernel crash. Since this function is
 *	called through a atomic notifier chain ,we cannot sleep awaiting a
 *	response from FW, hence repeatedly loop until we get a reply.
 *
 *	@adap: the adapter
 *	@mbox: index of the mailbox to use
 *	@cmd: the command to write
 *	@size: command length in bytes
 *	@rpl: where to optionally store the reply
 */

static int t4_wr_mbox_meat_timeout_panic(struct adapter *adap, int mbox,
			    const void *cmd, int size, void *rpl)
{
	u32 v;
	u64 res;
	int i, ret;
	u64 cnt;
	const __be64 *p = cmd;
	u32 data_reg = PF_REG(mbox, A_CIM_PF_MAILBOX_DATA);
	u32 ctl_reg = PF_REG(mbox, A_CIM_PF_MAILBOX_CTRL);
	u32 ctl;
	__be64 cmd_rpl[MBOX_LEN/8];
	u32 pcie_fw;

	if ((size & 15) || size > MBOX_LEN)
		return -EINVAL;

	/*
	 * Check for a firmware error which we'll report as a
	 * device error.
	 */
	pcie_fw = t4_read_reg(adap, A_PCIE_FW);
	if (pcie_fw & F_PCIE_FW_ERR) {
		t4_report_fw_error(adap);
		ret = (pcie_fw & F_PCIE_FW_ERR) ? -ENXIO : -EBUSY;
		return ret;
	}

	/*
	 * Attempt to gain access to the mailbox.
	 */
	for (i = 0; i < 4; i++) {
		ctl = t4_read_reg(adap, ctl_reg);
		v = G_MBOWNER(ctl);
		if (v != X_MBOWNER_NONE)
			break;
	}

	/*
	 * If we were unable to gain access, report the error to our caller.
	 */
	if (v != X_MBOWNER_PL) {
		t4_report_fw_error(adap);
		ret = (v == X_MBOWNER_FW) ? -EBUSY : -ETIMEDOUT;
		return ret;
	}

	/*
	 * If we gain ownership of the mailbox and there's a "valid" message
	 * in it, this is likely an asynchronous error message from the
	 * firmware.  So we'll report that and then proceed on with attempting
	 * to issue our own command ... which may well fail if the error
	 * presaged the firmware crashing ...
	 */
	if (ctl & F_MBMSGVALID) {
		CH_ERR(adap, "found VALID command in mbox %u: "
		       "%llx %llx %llx %llx %llx %llx %llx %llx\n", mbox,
		       (unsigned long long)t4_read_reg64(adap, data_reg),
		       (unsigned long long)t4_read_reg64(adap, data_reg + 8),
		       (unsigned long long)t4_read_reg64(adap, data_reg + 16),
		       (unsigned long long)t4_read_reg64(adap, data_reg + 24),
		       (unsigned long long)t4_read_reg64(adap, data_reg + 32),
		       (unsigned long long)t4_read_reg64(adap, data_reg + 40),
		       (unsigned long long)t4_read_reg64(adap, data_reg + 48),
		       (unsigned long long)t4_read_reg64(adap, data_reg + 56));
	}

	/*
	 * Copy in the new mailbox command and send it on its way ...
	 */
	for (i = 0; i < size; i += 8, p++)
		t4_write_reg64(adap, data_reg + i, be64_to_cpu(*p));

	CH_DUMP_MBOX(adap, mbox, data_reg, size / 8);

	t4_write_reg(adap, ctl_reg, F_MBMSGVALID | V_MBOWNER(X_MBOWNER_FW));
	t4_read_reg(adap, ctl_reg);	/* flush write */

	/*
	 * Loop waiting for the reply; bail out if we time out or the firmware
	 * reports an error.
	 */
	for (cnt = 0;
	    !((pcie_fw = t4_read_reg(adap, A_PCIE_FW)) & F_PCIE_FW_ERR) &&
	    cnt < FW_REPLY_WAIT_LOOP;
	    cnt++) {
		v = t4_read_reg(adap, ctl_reg);
		if (v == X_CIM_PF_NOACCESS)
			continue;
		if (G_MBOWNER(v) == X_MBOWNER_PL) {
			if (!(v & F_MBMSGVALID)) {
				t4_write_reg(adap, ctl_reg,
					     V_MBOWNER(X_MBOWNER_NONE));
				continue;
			}

			/*
			 * Retrieve the command reply and release the mailbox.
			 */
			get_mbox_rpl(adap, cmd_rpl, size/8, data_reg);
			t4_write_reg(adap, ctl_reg, V_MBOWNER(X_MBOWNER_NONE));

			CH_DUMP_MBOX(adap, mbox, data_reg, size / 8);

			res = be64_to_cpu(cmd_rpl[0]);
			if (G_FW_CMD_OP(res >> 32) == FW_DEBUG_CMD) {
				fw_asrt(adap, (struct fw_debug_cmd *)cmd_rpl);
				res = V_FW_CMD_RETVAL(EIO);
			} else if (rpl)
				memcpy(rpl, cmd_rpl, size);
			return -G_FW_CMD_RETVAL((int)res);
		}
	}

	/*
	 * We timed out waiting for a reply to our mailbox command.  Report
	 * the error and also check to see if the firmware reported any
	 * errors ...
	 */
	ret = (pcie_fw & F_PCIE_FW_ERR) ? -ENXIO : -ETIMEDOUT;
	CH_ERR(adap, "command %#x in mailbox %d timed out\n",
	       *(const u8 *)cmd, mbox);

	t4_report_fw_error(adap);
	t4_fatal_err(adap);
	return ret;
}
#endif

int t4_wr_mbox_meat(struct adapter *adap, int mbox, const void *cmd, int size,
		    void *rpl, bool sleep_ok)
{
#ifdef CONFIG_CUDBG
	if (adap->flags & K_CRASH)
		return t4_wr_mbox_meat_timeout_panic(adap, mbox, cmd, size,
						     rpl);
	else
#endif
		return t4_wr_mbox_meat_timeout(adap, mbox, cmd, size, rpl,
					       sleep_ok, FW_CMD_MAX_TIMEOUT);

}

static int t4_edc_err_read(struct adapter *adap, int idx)
{
	u32 edc_ecc_err_addr_reg;
	u32 edc_bist_status_rdata_reg;

	if (is_t4(adap->params.chip)) {
		CH_WARN(adap, "%s: T4 NOT supported.\n", __func__);
		return 0;
	}
	if (idx != MEM_EDC0 && idx != MEM_EDC1) {
		CH_WARN(adap, "%s: idx %d NOT supported.\n", __func__, idx);
		return 0;
	}

	edc_ecc_err_addr_reg = EDC_T5_REG(A_EDC_H_ECC_ERR_ADDR, idx);
	edc_bist_status_rdata_reg = EDC_T5_REG(A_EDC_H_BIST_STATUS_RDATA, idx);

	CH_WARN(adap,
		"edc%d err addr 0x%x: 0x%x.\n",
		idx, edc_ecc_err_addr_reg,
		t4_read_reg(adap, edc_ecc_err_addr_reg));
	CH_WARN(adap,
	 	"bist: 0x%x, status %llx %llx %llx %llx %llx %llx %llx %llx %llx.\n",
		edc_bist_status_rdata_reg,
		(unsigned long long)t4_read_reg64(adap, edc_bist_status_rdata_reg),
		(unsigned long long)t4_read_reg64(adap, edc_bist_status_rdata_reg + 8),
		(unsigned long long)t4_read_reg64(adap, edc_bist_status_rdata_reg + 16),
		(unsigned long long)t4_read_reg64(adap, edc_bist_status_rdata_reg + 24),
		(unsigned long long)t4_read_reg64(adap, edc_bist_status_rdata_reg + 32),
		(unsigned long long)t4_read_reg64(adap, edc_bist_status_rdata_reg + 40),
		(unsigned long long)t4_read_reg64(adap, edc_bist_status_rdata_reg + 48),
		(unsigned long long)t4_read_reg64(adap, edc_bist_status_rdata_reg + 56),
		(unsigned long long)t4_read_reg64(adap, edc_bist_status_rdata_reg + 64));

	return 0;
}

/**
 *	t4_memory_rw_addr - read/write adapter memory via PCIE memory window
 *	@adap: the adapter
 *	@win: PCI-E Memory Window to use
 *	@addr: address within adapter memory
 *	@len: amount of memory to transfer
 *	@hbuf: host memory buffer
 *	@dir: direction of transfer T4_MEMORY_READ (1) or T4_MEMORY_WRITE (0)
 *
 *	Reads/writes an [almost] arbitrary memory region in the firmware: the
 *	firmware memory address and host buffer must be aligned on 32-bit
 *	boudaries; the length may be arbitrary.
 *
 *	NOTES:
 *	 1. The memory is transferred as a raw byte sequence from/to the
 *	    firmware's memory.  If this memory contains data structures which
 *	    contain multi-byte integers, it's the caller's responsibility to
 *	    perform appropriate byte order conversions.
 *
 *	 2. It is the Caller's responsibility to ensure that no other code
 *	    uses the specified PCI-E Memory Window while this routine is
 *	    using it.  This is typically done via the use of OS-specific
 *	    locks, etc.
 */
int t4_memory_rw_addr(struct adapter *adap, int win, u32 addr,
		      u32 len, void *hbuf, int dir)
{
	u32 pos, offset, resid;
	u32 win_pf, mem_reg, mem_aperture, mem_base;
	u32 *buf;

	/* Argument sanity checks ...
	 */
	if (addr & 0x3 || (uintptr_t)hbuf & 0x3)
		return -EINVAL;
	buf = (u32 *)hbuf;

	/* It's convenient to be able to handle lengths which aren't a
	 * multiple of 32-bits because we often end up transferring files to
	 * the firmware.  So we'll handle that by normalizing the length here
	 * and then handling any residual transfer at the end.
	 */
	resid = len & 0x3;
	len -= resid;

	/* Each PCI-E Memory Window is programmed with a window size -- or
	 * "aperture" -- which controls the granularity of its mapping onto
	 * adapter memory.  We need to grab that aperture in order to know
	 * how to use the specified window.  The window is also programmed
	 * with the base address of the Memory Window in BAR0's address
	 * space.  For T4 this is an absolute PCI-E Bus Address.  For T5
	 * the address is relative to BAR0.
	 */
	mem_reg = t4_read_reg(adap,
			      PCIE_MEM_ACCESS_REG(A_PCIE_MEM_ACCESS_BASE_WIN,
						  win));

	/* a dead adapter will return 0xffffffff for PIO reads */
	if (mem_reg == 0xffffffff) {
		CH_WARN(adap, "Unable to read PCI-E Memory Window Base[%d]\n",
			win);
		return -ENXIO;
	}

	mem_aperture = 1 << (G_WINDOW(mem_reg) + X_WINDOW_SHIFT);
	mem_base = G_PCIEOFST(mem_reg) << X_PCIEOFST_SHIFT;
	if (is_t4(adap->params.chip))
		mem_base -= adap->t4_bar0;
	win_pf = is_t4(adap->params.chip) ? 0 : V_PFNUM(adap->pf);

	/* Calculate our initial PCI-E Memory Window Position and Offset into
	 * that Window.
	 */
	pos = addr & ~(mem_aperture-1);
	offset = addr - pos;

	/* Set up initial PCI-E Memory Window to cover the start of our
	 * transfer.  (Read it back to ensure that changes propagate before we
	 * attempt to use the new value.)
	 */
	t4_write_reg(adap,
		     PCIE_MEM_ACCESS_REG(A_PCIE_MEM_ACCESS_OFFSET, win),
		     pos | win_pf);
	t4_read_reg(adap,
		    PCIE_MEM_ACCESS_REG(A_PCIE_MEM_ACCESS_OFFSET, win));

	/* Transfer data to/from the adapter as long as there's an integral
	 * number of 32-bit transfers to complete.
	 *
	 * A note on Endianness issues:
	 *
	 * The "register" reads and writes below from/to the PCI-E Memory
	 * Window invoke the standard adapter Big-Endian to PCI-E Link
	 * Little-Endian "swizzel."  As a result, if we have the following
	 * data in adapter memory:
	 *
	 *     Memory:  ... | b0 | b1 | b2 | b3 | ...
	 *     Address:      i+0  i+1  i+2  i+3
	 *
	 * Then a read of the adapter memory via the PCI-E Memory Window
	 * will yield:
	 *
	 *     x = readl(i)
	 *	   31                  0
	 *         [ b3 | b2 | b1 | b0 ]
	 *
	 * If this value is stored into local memory on a Little-Endian system
	 * it will show up correctly in local memory as:
	 *
	 *     ( ..., b0, b1, b2, b3, ... )
	 *
	 * But on a Big-Endian system, the store will show up in memory
	 * incorrectly swizzled as:
	 *
	 *     ( ..., b3, b2, b1, b0, ... )
	 *
	 * So we need to account for this in the reads and writes to the
	 * PCI-E Memory Window below by undoing the register read/write
	 * swizzels.
	 */
	while (len > 0) {
		if (dir == T4_MEMORY_READ)
			*buf++ = le32_to_cpu((__force __le32)t4_read_reg(adap,
						mem_base + offset));
		else
			t4_write_reg(adap, mem_base + offset,
				     (__force u32)cpu_to_le32(*buf++));
		offset += sizeof(__be32);
		len -= sizeof(__be32);

		/* If we've reached the end of our current window aperture,
		 * move the PCI-E Memory Window on to the next.  Note that
		 * doing this here after "len" may be 0 allows us to set up
		 * the PCI-E Memory Window for a possible final residual
		 * transfer below ...
		 */
		if (offset == mem_aperture) {
			pos += mem_aperture;
			offset = 0;
			t4_write_reg(adap,
				PCIE_MEM_ACCESS_REG(A_PCIE_MEM_ACCESS_OFFSET,
						    win), pos | win_pf);
			t4_read_reg(adap,
				PCIE_MEM_ACCESS_REG(A_PCIE_MEM_ACCESS_OFFSET,
						    win));
		}
	}

	/* If the original transfer had a length which wasn't a multiple of
	 * 32-bits, now's where we need to finish off the transfer of the
	 * residual amount.  The PCI-E Memory Window has already been moved
	 * above (if necessary) to cover this final transfer.
	 */
	if (resid) {
		union {
			u32 word;
			char byte[4];
		} last;
		unsigned char *bp;
		int i;

		if (dir == T4_MEMORY_READ) {
			last.word = le32_to_cpu(
					(__force __le32)t4_read_reg(adap,
						mem_base + offset));
			for (bp = (unsigned char *)buf, i = resid; i < 4; i++)
				bp[i] = last.byte[i];
		} else {
			last.word = *buf;
			for (i = resid; i < 4; i++)
				last.byte[i] = 0;
			t4_write_reg(adap, mem_base + offset,
				     (__force u32)cpu_to_le32(last.word));
		}
	}

	return 0;
}

/**
 *	t4_memory_rw_mtype - read/write EDC 0, EDC 1 or MC via PCIE memory window
 *	@adap: the adapter
 *	@win: PCI-E Memory Window to use
 *	@mtype: memory type: MEM_EDC0, MEM_EDC1, MEM_HMA or MEM_MC
 *	@maddr: address within indicated memory type
 *	@len: amount of memory to transfer
 *	@hbuf: host memory buffer
 *	@dir: direction of transfer T4_MEMORY_READ (1) or T4_MEMORY_WRITE (0)
 *
 *	Reads/writes adapter memory using t4_memory_rw_addr().  This routine
 *	provides an (memory type, address withing memory type) interface.
 */
int t4_memory_rw_mtype(struct adapter *adap, int win, int mtype, u32 maddr,
		       u32 len, void *hbuf, int dir)
{
	u32 mtype_offset;
	u32 edc_size, mc_size;

	/* Offset into the region of memory which is being accessed
	 * MEM_EDC0 = 0
	 * MEM_EDC1 = 1
	 * MEM_MC   = 2 -- MEM_MC for chips with only 1 memory controller
	 * MEM_MC1  = 3 -- for chips with 2 memory controllers (e.g. T5)
	 * MEM_HMA  = 4
	 */
	edc_size  = G_EDRAM0_SIZE(t4_read_reg(adap, A_MA_EDRAM0_BAR));
	if (mtype == MEM_HMA) {
		mtype_offset = 2 * (edc_size * 1024 * 1024);
	} else if (mtype != MEM_MC1)
		mtype_offset = (mtype * (edc_size * 1024 * 1024));
	else {
		mc_size = G_EXT_MEM0_SIZE(t4_read_reg(adap,
						      A_MA_EXT_MEMORY0_BAR));
		mtype_offset = (MEM_MC0 * edc_size + mc_size) * 1024 * 1024;
	}

	return t4_memory_rw_addr(adap, win,
				 mtype_offset + maddr, len,
				 hbuf, dir);
}

/*
 * Return the specified PCI-E Configuration Space register from our Physical
 * Function.  We try first via a Firmware LDST Command (if fw_attach != 0)
 * since we prefer to let the firmware own all of these registers, but if that
 * fails we go for it directly ourselves.
 */
u32 t4_read_pcie_cfg4(struct adapter *adap, int reg, int drv_fw_attach)
{
	u32 val;

	/*
	 * If fw_attach != 0, construct and send the Firmware LDST Command to
	 * retrieve the specified PCI-E Configuration Space register.
	 */
	if (drv_fw_attach != 0) {
		struct fw_ldst_cmd ldst_cmd;
		int ret;

		memset(&ldst_cmd, 0, sizeof(ldst_cmd));
		ldst_cmd.op_to_addrspace =
			cpu_to_be32(V_FW_CMD_OP(FW_LDST_CMD) |
				    F_FW_CMD_REQUEST |
				    F_FW_CMD_READ |
				    V_FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_FUNC_PCIE));
		ldst_cmd.cycles_to_len16 = cpu_to_be32(FW_LEN16(ldst_cmd));
		ldst_cmd.u.pcie.select_naccess = V_FW_LDST_CMD_NACCESS(1);
		ldst_cmd.u.pcie.ctrl_to_fn =
			(F_FW_LDST_CMD_LC | V_FW_LDST_CMD_FN(adap->pf));
		ldst_cmd.u.pcie.r = reg;

		/*
		 * If the LDST Command succeeds, return the result, otherwise
		 * fall through to reading it directly ourselves ...
		 */
		ret = t4_wr_mbox(adap, adap->mbox, &ldst_cmd, sizeof(ldst_cmd),
				 &ldst_cmd);
		if (ret == 0)
			return be32_to_cpu(ldst_cmd.u.pcie.data[0]);

		CH_WARN(adap, "Firmware failed to return "
			"Configuration Space register %d, err = %d\n",
			reg, -ret);
	}

	/*
	 * Read the desired Configuration Space register via the PCI-E
	 * Backdoor mechanism.
	 */
	t4_hw_pci_read_cfg4(adap, reg, &val);
	return val;
}

/*
 * Get the window based on base passed to it.
 * Window aperture is currently unhandled, but there is no use case for it
 * right now
 */
static int t4_get_window(struct adapter *adap, u64 pci_base, u64 pci_mask, u64 memwin_base, int drv_fw_attach)
{
	if (is_t4(adap->params.chip)) {
		u32 bar0;

		/*
		 * Truncation intentional: we only read the bottom 32-bits of
		 * the 64-bit BAR0/BAR1 ...  We use the hardware backdoor
		 * mechanism to read BAR0 instead of using
		 * pci_resource_start() because we could be operating from
		 * within a Virtual Machine which is trapping our accesses to
		 * our Configuration Space and we need to set up the PCI-E
		 * Memory Window decoders with the actual addresses which will
		 * be coming across the PCI-E link.
		 */
		bar0 = t4_read_pcie_cfg4(adap, pci_base, drv_fw_attach);
		bar0 &= pci_mask;
		adap->t4_bar0 = bar0;

		return bar0 + memwin_base;
	} else {
		/* For T5, only relative offset inside the PCIe BAR is passed */
		return memwin_base;
	}
}

/* Get the default utility window (win0) used by everyone */
int t4_get_util_window(struct adapter *adap, int drv_fw_attach)
{
	return t4_get_window(adap, PCI_BASE_ADDRESS_0, PCI_BASE_ADDRESS_MEM_MASK, MEMWIN0_BASE, drv_fw_attach);
}

/*
 * Set up memory window for accessing adapter memory ranges.  (Read
 * back MA register to ensure that changes propagate before we attempt
 * to use the new values.)
 */
void t4_setup_memwin(struct adapter *adap, u32 memwin_base, u32 window)
{
	t4_write_reg(adap, PCIE_MEM_ACCESS_REG(A_PCIE_MEM_ACCESS_BASE_WIN, window),
		     memwin_base | V_BIR(0) |
		     V_WINDOW(ilog2(MEMWIN0_APERTURE) - X_WINDOW_SHIFT));
	t4_read_reg(adap, PCIE_MEM_ACCESS_REG(A_PCIE_MEM_ACCESS_BASE_WIN, window));
}

/**
 *	t4_get_regs_len - return the size of the chips register set
 *	@adapter: the adapter
 *
 *	Returns the size of the chip's BAR0 register space.
 */
unsigned int t4_get_regs_len(struct adapter *adapter)
{
	unsigned int chip_version = CHELSIO_CHIP_VERSION(adapter->params.chip);

	switch (chip_version) {
	case CHELSIO_T4:
		return T4_REGMAP_SIZE;

	case CHELSIO_T5:
	case CHELSIO_T6:
		return T5_REGMAP_SIZE;
	}

	CH_ERR(adapter,
		"Unsupported chip version %d\n", chip_version);
	return 0;
}

/**
 *	t4_get_regs - read chip registers into provided buffer
 *	@adap: the adapter
 *	@buf: register buffer
 *	@buf_size: size (in bytes) of register buffer
 *
 *	If the provided register buffer isn't large enough for the chip's
 *	full register range, the register dump will be truncated to the
 *	register buffer's size.
 */
void t4_get_regs(struct adapter *adap, void *buf, size_t buf_size)
{
	static const unsigned int t4_reg_ranges[] = {
		0x1008, 0x1108,
		0x1180, 0x1184,
		0x1190, 0x1194,
		0x11a0, 0x11a4,
		0x11b0, 0x11b4,
		0x11fc, 0x123c,
		0x1300, 0x173c,
		0x1800, 0x18fc,
		0x3000, 0x30d8,
		0x30e0, 0x30e4,
		0x30ec, 0x5910,
		0x5920, 0x5924,
		0x5960, 0x5960,
		0x5968, 0x5968,
		0x5970, 0x5970,
		0x5978, 0x5978,
		0x5980, 0x5980,
		0x5988, 0x5988,
		0x5990, 0x5990,
		0x5998, 0x5998,
		0x59a0, 0x59d4,
		0x5a00, 0x5ae0,
		0x5ae8, 0x5ae8,
		0x5af0, 0x5af0,
		0x5af8, 0x5af8,
		0x6000, 0x6098,
		0x6100, 0x6150,
		0x6200, 0x6208,
		0x6240, 0x6248,
		0x6280, 0x62b0,
		0x62c0, 0x6338,
		0x6370, 0x638c,
		0x6400, 0x643c,
		0x6500, 0x6524,
		0x6a00, 0x6a04,
		0x6a14, 0x6a38,
		0x6a60, 0x6a70,
		0x6a78, 0x6a78,
		0x6b00, 0x6b0c,
		0x6b1c, 0x6b84,
		0x6bf0, 0x6bf8,
		0x6c00, 0x6c0c,
		0x6c1c, 0x6c84,
		0x6cf0, 0x6cf8,
		0x6d00, 0x6d0c,
		0x6d1c, 0x6d84,
		0x6df0, 0x6df8,
		0x6e00, 0x6e0c,
		0x6e1c, 0x6e84,
		0x6ef0, 0x6ef8,
		0x6f00, 0x6f0c,
		0x6f1c, 0x6f84,
		0x6ff0, 0x6ff8,
		0x7000, 0x700c,
		0x701c, 0x7084,
		0x70f0, 0x70f8,
		0x7100, 0x710c,
		0x711c, 0x7184,
		0x71f0, 0x71f8,
		0x7200, 0x720c,
		0x721c, 0x7284,
		0x72f0, 0x72f8,
		0x7300, 0x730c,
		0x731c, 0x7384,
		0x73f0, 0x73f8,
		0x7400, 0x7450,
		0x7500, 0x7530,
		0x7600, 0x760c,
		0x7614, 0x761c,
		0x7680, 0x76cc,
		0x7700, 0x7798,
		0x77c0, 0x77fc,
		0x7900, 0x79fc,
		0x7b00, 0x7b58,
		0x7b60, 0x7b84,
		0x7b8c, 0x7c38,
		0x7d00, 0x7d38,
		0x7d40, 0x7d80,
		0x7d8c, 0x7ddc,
		0x7de4, 0x7e04,
		0x7e10, 0x7e1c,
		0x7e24, 0x7e38,
		0x7e40, 0x7e44,
		0x7e4c, 0x7e78,
		0x7e80, 0x7ea4,
		0x7eac, 0x7edc,
		0x7ee8, 0x7efc,
		0x8dc0, 0x8e04,
		0x8e10, 0x8e1c,
		0x8e30, 0x8e78,
		0x8ea0, 0x8eb8,
		0x8ec0, 0x8f6c,
		0x8fc0, 0x9008,
		0x9010, 0x9058,
		0x9060, 0x9060,
		0x9068, 0x9074,
		0x90fc, 0x90fc,
		0x9400, 0x9408,
		0x9410, 0x9458,
		0x9600, 0x9600,
		0x9608, 0x9638,
		0x9640, 0x96bc,
		0x9800, 0x9808,
		0x9820, 0x983c,
		0x9850, 0x9864,
		0x9c00, 0x9c6c,
		0x9c80, 0x9cec,
		0x9d00, 0x9d6c,
		0x9d80, 0x9dec,
		0x9e00, 0x9e6c,
		0x9e80, 0x9eec,
		0x9f00, 0x9f6c,
		0x9f80, 0x9fec,
		0xd004, 0xd004,
		0xd010, 0xd03c,
		0xdfc0, 0xdfe0,
		0xe000, 0xea7c,
		0xf000, 0x11110,
		0x11118, 0x11190,
		0x19040, 0x1906c,
		0x19078, 0x19080,
		0x1908c, 0x190e4,
		0x190f0, 0x190f8,
		0x19100, 0x19110,
		0x19120, 0x19124,
		0x19150, 0x19194,
		0x1919c, 0x191b0,
		0x191d0, 0x191e8,
		0x19238, 0x1924c,
		0x193f8, 0x1943c,
		0x1944c, 0x19474,
		0x19490, 0x194e0,
		0x194f0, 0x194f8,
		0x19800, 0x19c08,
		0x19c10, 0x19c90,
		0x19ca0, 0x19ce4,
		0x19cf0, 0x19d40,
		0x19d50, 0x19d94,
		0x19da0, 0x19de8,
		0x19df0, 0x19e40,
		0x19e50, 0x19e90,
		0x19ea0, 0x19f4c,
		0x1a000, 0x1a004,
		0x1a010, 0x1a06c,
		0x1a0b0, 0x1a0e4,
		0x1a0ec, 0x1a0f4,
		0x1a100, 0x1a108,
		0x1a114, 0x1a120,
		0x1a128, 0x1a130,
		0x1a138, 0x1a138,
		0x1a190, 0x1a1c4,
		0x1a1fc, 0x1a1fc,
		0x1e040, 0x1e04c,
		0x1e284, 0x1e28c,
		0x1e2c0, 0x1e2c0,
		0x1e2e0, 0x1e2e0,
		0x1e300, 0x1e384,
		0x1e3c0, 0x1e3c8,
		0x1e440, 0x1e44c,
		0x1e684, 0x1e68c,
		0x1e6c0, 0x1e6c0,
		0x1e6e0, 0x1e6e0,
		0x1e700, 0x1e784,
		0x1e7c0, 0x1e7c8,
		0x1e840, 0x1e84c,
		0x1ea84, 0x1ea8c,
		0x1eac0, 0x1eac0,
		0x1eae0, 0x1eae0,
		0x1eb00, 0x1eb84,
		0x1ebc0, 0x1ebc8,
		0x1ec40, 0x1ec4c,
		0x1ee84, 0x1ee8c,
		0x1eec0, 0x1eec0,
		0x1eee0, 0x1eee0,
		0x1ef00, 0x1ef84,
		0x1efc0, 0x1efc8,
		0x1f040, 0x1f04c,
		0x1f284, 0x1f28c,
		0x1f2c0, 0x1f2c0,
		0x1f2e0, 0x1f2e0,
		0x1f300, 0x1f384,
		0x1f3c0, 0x1f3c8,
		0x1f440, 0x1f44c,
		0x1f684, 0x1f68c,
		0x1f6c0, 0x1f6c0,
		0x1f6e0, 0x1f6e0,
		0x1f700, 0x1f784,
		0x1f7c0, 0x1f7c8,
		0x1f840, 0x1f84c,
		0x1fa84, 0x1fa8c,
		0x1fac0, 0x1fac0,
		0x1fae0, 0x1fae0,
		0x1fb00, 0x1fb84,
		0x1fbc0, 0x1fbc8,
		0x1fc40, 0x1fc4c,
		0x1fe84, 0x1fe8c,
		0x1fec0, 0x1fec0,
		0x1fee0, 0x1fee0,
		0x1ff00, 0x1ff84,
		0x1ffc0, 0x1ffc8,
		0x20000, 0x2002c,
		0x20100, 0x2013c,
		0x20190, 0x201a0,
		0x201a8, 0x201b8,
		0x201c4, 0x201c8,
		0x20200, 0x20318,
		0x20400, 0x204b4,
		0x204c0, 0x20528,
		0x20540, 0x20614,
		0x21000, 0x21040,
		0x2104c, 0x21060,
		0x210c0, 0x210ec,
		0x21200, 0x21268,
		0x21270, 0x21284,
		0x212fc, 0x21388,
		0x21400, 0x21404,
		0x21500, 0x21500,
		0x21510, 0x21518,
		0x2152c, 0x21530,
		0x2153c, 0x2153c,
		0x21550, 0x21554,
		0x21600, 0x21600,
		0x21608, 0x2161c,
		0x21624, 0x21628,
		0x21630, 0x21634,
		0x2163c, 0x2163c,
		0x21700, 0x2171c,
		0x21780, 0x2178c,
		0x21800, 0x21818,
		0x21820, 0x21828,
		0x21830, 0x21848,
		0x21850, 0x21854,
		0x21860, 0x21868,
		0x21870, 0x21870,
		0x21878, 0x21898,
		0x218a0, 0x218a8,
		0x218b0, 0x218c8,
		0x218d0, 0x218d4,
		0x218e0, 0x218e8,
		0x218f0, 0x218f0,
		0x218f8, 0x21a18,
		0x21a20, 0x21a28,
		0x21a30, 0x21a48,
		0x21a50, 0x21a54,
		0x21a60, 0x21a68,
		0x21a70, 0x21a70,
		0x21a78, 0x21a98,
		0x21aa0, 0x21aa8,
		0x21ab0, 0x21ac8,
		0x21ad0, 0x21ad4,
		0x21ae0, 0x21ae8,
		0x21af0, 0x21af0,
		0x21af8, 0x21c18,
		0x21c20, 0x21c20,
		0x21c28, 0x21c30,
		0x21c38, 0x21c38,
		0x21c80, 0x21c98,
		0x21ca0, 0x21ca8,
		0x21cb0, 0x21cc8,
		0x21cd0, 0x21cd4,
		0x21ce0, 0x21ce8,
		0x21cf0, 0x21cf0,
		0x21cf8, 0x21d7c,
		0x21e00, 0x21e04,
		0x22000, 0x2202c,
		0x22100, 0x2213c,
		0x22190, 0x221a0,
		0x221a8, 0x221b8,
		0x221c4, 0x221c8,
		0x22200, 0x22318,
		0x22400, 0x224b4,
		0x224c0, 0x22528,
		0x22540, 0x22614,
		0x23000, 0x23040,
		0x2304c, 0x23060,
		0x230c0, 0x230ec,
		0x23200, 0x23268,
		0x23270, 0x23284,
		0x232fc, 0x23388,
		0x23400, 0x23404,
		0x23500, 0x23500,
		0x23510, 0x23518,
		0x2352c, 0x23530,
		0x2353c, 0x2353c,
		0x23550, 0x23554,
		0x23600, 0x23600,
		0x23608, 0x2361c,
		0x23624, 0x23628,
		0x23630, 0x23634,
		0x2363c, 0x2363c,
		0x23700, 0x2371c,
		0x23780, 0x2378c,
		0x23800, 0x23818,
		0x23820, 0x23828,
		0x23830, 0x23848,
		0x23850, 0x23854,
		0x23860, 0x23868,
		0x23870, 0x23870,
		0x23878, 0x23898,
		0x238a0, 0x238a8,
		0x238b0, 0x238c8,
		0x238d0, 0x238d4,
		0x238e0, 0x238e8,
		0x238f0, 0x238f0,
		0x238f8, 0x23a18,
		0x23a20, 0x23a28,
		0x23a30, 0x23a48,
		0x23a50, 0x23a54,
		0x23a60, 0x23a68,
		0x23a70, 0x23a70,
		0x23a78, 0x23a98,
		0x23aa0, 0x23aa8,
		0x23ab0, 0x23ac8,
		0x23ad0, 0x23ad4,
		0x23ae0, 0x23ae8,
		0x23af0, 0x23af0,
		0x23af8, 0x23c18,
		0x23c20, 0x23c20,
		0x23c28, 0x23c30,
		0x23c38, 0x23c38,
		0x23c80, 0x23c98,
		0x23ca0, 0x23ca8,
		0x23cb0, 0x23cc8,
		0x23cd0, 0x23cd4,
		0x23ce0, 0x23ce8,
		0x23cf0, 0x23cf0,
		0x23cf8, 0x23d7c,
		0x23e00, 0x23e04,
		0x24000, 0x2402c,
		0x24100, 0x2413c,
		0x24190, 0x241a0,
		0x241a8, 0x241b8,
		0x241c4, 0x241c8,
		0x24200, 0x24318,
		0x24400, 0x244b4,
		0x244c0, 0x24528,
		0x24540, 0x24614,
		0x25000, 0x25040,
		0x2504c, 0x25060,
		0x250c0, 0x250ec,
		0x25200, 0x25268,
		0x25270, 0x25284,
		0x252fc, 0x25388,
		0x25400, 0x25404,
		0x25500, 0x25500,
		0x25510, 0x25518,
		0x2552c, 0x25530,
		0x2553c, 0x2553c,
		0x25550, 0x25554,
		0x25600, 0x25600,
		0x25608, 0x2561c,
		0x25624, 0x25628,
		0x25630, 0x25634,
		0x2563c, 0x2563c,
		0x25700, 0x2571c,
		0x25780, 0x2578c,
		0x25800, 0x25818,
		0x25820, 0x25828,
		0x25830, 0x25848,
		0x25850, 0x25854,
		0x25860, 0x25868,
		0x25870, 0x25870,
		0x25878, 0x25898,
		0x258a0, 0x258a8,
		0x258b0, 0x258c8,
		0x258d0, 0x258d4,
		0x258e0, 0x258e8,
		0x258f0, 0x258f0,
		0x258f8, 0x25a18,
		0x25a20, 0x25a28,
		0x25a30, 0x25a48,
		0x25a50, 0x25a54,
		0x25a60, 0x25a68,
		0x25a70, 0x25a70,
		0x25a78, 0x25a98,
		0x25aa0, 0x25aa8,
		0x25ab0, 0x25ac8,
		0x25ad0, 0x25ad4,
		0x25ae0, 0x25ae8,
		0x25af0, 0x25af0,
		0x25af8, 0x25c18,
		0x25c20, 0x25c20,
		0x25c28, 0x25c30,
		0x25c38, 0x25c38,
		0x25c80, 0x25c98,
		0x25ca0, 0x25ca8,
		0x25cb0, 0x25cc8,
		0x25cd0, 0x25cd4,
		0x25ce0, 0x25ce8,
		0x25cf0, 0x25cf0,
		0x25cf8, 0x25d7c,
		0x25e00, 0x25e04,
		0x26000, 0x2602c,
		0x26100, 0x2613c,
		0x26190, 0x261a0,
		0x261a8, 0x261b8,
		0x261c4, 0x261c8,
		0x26200, 0x26318,
		0x26400, 0x264b4,
		0x264c0, 0x26528,
		0x26540, 0x26614,
		0x27000, 0x27040,
		0x2704c, 0x27060,
		0x270c0, 0x270ec,
		0x27200, 0x27268,
		0x27270, 0x27284,
		0x272fc, 0x27388,
		0x27400, 0x27404,
		0x27500, 0x27500,
		0x27510, 0x27518,
		0x2752c, 0x27530,
		0x2753c, 0x2753c,
		0x27550, 0x27554,
		0x27600, 0x27600,
		0x27608, 0x2761c,
		0x27624, 0x27628,
		0x27630, 0x27634,
		0x2763c, 0x2763c,
		0x27700, 0x2771c,
		0x27780, 0x2778c,
		0x27800, 0x27818,
		0x27820, 0x27828,
		0x27830, 0x27848,
		0x27850, 0x27854,
		0x27860, 0x27868,
		0x27870, 0x27870,
		0x27878, 0x27898,
		0x278a0, 0x278a8,
		0x278b0, 0x278c8,
		0x278d0, 0x278d4,
		0x278e0, 0x278e8,
		0x278f0, 0x278f0,
		0x278f8, 0x27a18,
		0x27a20, 0x27a28,
		0x27a30, 0x27a48,
		0x27a50, 0x27a54,
		0x27a60, 0x27a68,
		0x27a70, 0x27a70,
		0x27a78, 0x27a98,
		0x27aa0, 0x27aa8,
		0x27ab0, 0x27ac8,
		0x27ad0, 0x27ad4,
		0x27ae0, 0x27ae8,
		0x27af0, 0x27af0,
		0x27af8, 0x27c18,
		0x27c20, 0x27c20,
		0x27c28, 0x27c30,
		0x27c38, 0x27c38,
		0x27c80, 0x27c98,
		0x27ca0, 0x27ca8,
		0x27cb0, 0x27cc8,
		0x27cd0, 0x27cd4,
		0x27ce0, 0x27ce8,
		0x27cf0, 0x27cf0,
		0x27cf8, 0x27d7c,
		0x27e00, 0x27e04,
	};

	static const unsigned int t5_reg_ranges[] = {
		0x1008, 0x10c0,
		0x10cc, 0x10f8,
		0x1100, 0x1100,
		0x110c, 0x1148,
		0x1180, 0x1184,
		0x1190, 0x1194,
		0x11a0, 0x11a4,
		0x11b0, 0x11b4,
		0x11fc, 0x123c,
		0x1280, 0x173c,
		0x1800, 0x18fc,
		0x3000, 0x3028,
		0x3060, 0x30b0,
		0x30b8, 0x30d8,
		0x30e0, 0x30fc,
		0x3140, 0x357c,
		0x35a8, 0x35cc,
		0x35ec, 0x35ec,
		0x3600, 0x5624,
		0x56cc, 0x56ec,
		0x56f4, 0x5720,
		0x5728, 0x575c,
		0x580c, 0x5814,
		0x5890, 0x589c,
		0x58a4, 0x58ac,
		0x58b8, 0x58bc,
		0x5940, 0x59c8,
		0x59d0, 0x59dc,
		0x59fc, 0x5a18,
		0x5a60, 0x5a70,
		0x5a80, 0x5a9c,
		0x5b94, 0x5bfc,
		0x6000, 0x6020,
		0x6028, 0x6040,
		0x6058, 0x609c,
		0x60a8, 0x614c,
		0x7700, 0x7798,
		0x77c0, 0x78fc,
		0x7b00, 0x7b58,
		0x7b60, 0x7b84,
		0x7b8c, 0x7c54,
		0x7d00, 0x7d38,
		0x7d40, 0x7d80,
		0x7d8c, 0x7ddc,
		0x7de4, 0x7e04,
		0x7e10, 0x7e1c,
		0x7e24, 0x7e38,
		0x7e40, 0x7e44,
		0x7e4c, 0x7e78,
		0x7e80, 0x7edc,
		0x7ee8, 0x7efc,
		0x8dc0, 0x8de0,
		0x8df8, 0x8e04,
		0x8e10, 0x8e84,
		0x8ea0, 0x8f84,
		0x8fc0, 0x9058,
		0x9060, 0x9060,
		0x9068, 0x90f8,
		0x9400, 0x9408,
		0x9410, 0x9470,
		0x9600, 0x9600,
		0x9608, 0x9638,
		0x9640, 0x96f4,
		0x9800, 0x9808,
		0x9820, 0x983c,
		0x9850, 0x9864,
		0x9c00, 0x9c6c,
		0x9c80, 0x9cec,
		0x9d00, 0x9d6c,
		0x9d80, 0x9dec,
		0x9e00, 0x9e6c,
		0x9e80, 0x9eec,
		0x9f00, 0x9f6c,
		0x9f80, 0xa020,
		0xd004, 0xd004,
		0xd010, 0xd03c,
		0xdfc0, 0xdfe0,
		0xe000, 0x1106c,
		0x11074, 0x11088,
		0x1109c, 0x1117c,
		0x11190, 0x11204,
		0x19040, 0x1906c,
		0x19078, 0x19080,
		0x1908c, 0x190e8,
		0x190f0, 0x190f8,
		0x19100, 0x19110,
		0x19120, 0x19124,
		0x19150, 0x19194,
		0x1919c, 0x191b0,
		0x191d0, 0x191e8,
		0x19238, 0x19290,
		0x193f8, 0x19428,
		0x19430, 0x19444,
		0x1944c, 0x1946c,
		0x19474, 0x19474,
		0x19490, 0x194cc,
		0x194f0, 0x194f8,
		0x19c00, 0x19c08,
		0x19c10, 0x19c60,
		0x19c94, 0x19ce4,
		0x19cf0, 0x19d40,
		0x19d50, 0x19d94,
		0x19da0, 0x19de8,
		0x19df0, 0x19e10,
		0x19e50, 0x19e90,
		0x19ea0, 0x19f24,
		0x19f34, 0x19f34,
		0x19f40, 0x19f50,
		0x19f90, 0x19fb4,
		0x19fc4, 0x19fe4,
		0x1a000, 0x1a004,
		0x1a010, 0x1a06c,
		0x1a0b0, 0x1a0e4,
		0x1a0ec, 0x1a0f8,
		0x1a100, 0x1a108,
		0x1a114, 0x1a120,
		0x1a128, 0x1a130,
		0x1a138, 0x1a138,
		0x1a190, 0x1a1c4,
		0x1a1fc, 0x1a1fc,
		0x1e008, 0x1e00c,
		0x1e040, 0x1e044,
		0x1e04c, 0x1e04c,
		0x1e284, 0x1e290,
		0x1e2c0, 0x1e2c0,
		0x1e2e0, 0x1e2e0,
		0x1e300, 0x1e384,
		0x1e3c0, 0x1e3c8,
		0x1e408, 0x1e40c,
		0x1e440, 0x1e444,
		0x1e44c, 0x1e44c,
		0x1e684, 0x1e690,
		0x1e6c0, 0x1e6c0,
		0x1e6e0, 0x1e6e0,
		0x1e700, 0x1e784,
		0x1e7c0, 0x1e7c8,
		0x1e808, 0x1e80c,
		0x1e840, 0x1e844,
		0x1e84c, 0x1e84c,
		0x1ea84, 0x1ea90,
		0x1eac0, 0x1eac0,
		0x1eae0, 0x1eae0,
		0x1eb00, 0x1eb84,
		0x1ebc0, 0x1ebc8,
		0x1ec08, 0x1ec0c,
		0x1ec40, 0x1ec44,
		0x1ec4c, 0x1ec4c,
		0x1ee84, 0x1ee90,
		0x1eec0, 0x1eec0,
		0x1eee0, 0x1eee0,
		0x1ef00, 0x1ef84,
		0x1efc0, 0x1efc8,
		0x1f008, 0x1f00c,
		0x1f040, 0x1f044,
		0x1f04c, 0x1f04c,
		0x1f284, 0x1f290,
		0x1f2c0, 0x1f2c0,
		0x1f2e0, 0x1f2e0,
		0x1f300, 0x1f384,
		0x1f3c0, 0x1f3c8,
		0x1f408, 0x1f40c,
		0x1f440, 0x1f444,
		0x1f44c, 0x1f44c,
		0x1f684, 0x1f690,
		0x1f6c0, 0x1f6c0,
		0x1f6e0, 0x1f6e0,
		0x1f700, 0x1f784,
		0x1f7c0, 0x1f7c8,
		0x1f808, 0x1f80c,
		0x1f840, 0x1f844,
		0x1f84c, 0x1f84c,
		0x1fa84, 0x1fa90,
		0x1fac0, 0x1fac0,
		0x1fae0, 0x1fae0,
		0x1fb00, 0x1fb84,
		0x1fbc0, 0x1fbc8,
		0x1fc08, 0x1fc0c,
		0x1fc40, 0x1fc44,
		0x1fc4c, 0x1fc4c,
		0x1fe84, 0x1fe90,
		0x1fec0, 0x1fec0,
		0x1fee0, 0x1fee0,
		0x1ff00, 0x1ff84,
		0x1ffc0, 0x1ffc8,
		0x30000, 0x30030,
		0x30100, 0x30144,
		0x30190, 0x301a0,
		0x301a8, 0x301b8,
		0x301c4, 0x301c8,
		0x301d0, 0x301d0,
		0x30200, 0x30318,
		0x30400, 0x304b4,
		0x304c0, 0x3052c,
		0x30540, 0x3061c,
		0x30800, 0x30828,
		0x30834, 0x30834,
		0x308c0, 0x30908,
		0x30910, 0x309ac,
		0x30a00, 0x30a14,
		0x30a1c, 0x30a2c,
		0x30a44, 0x30a50,
		0x30a74, 0x30a74,
		0x30a7c, 0x30afc,
		0x30b08, 0x30c24,
		0x30d00, 0x30d00,
		0x30d08, 0x30d14,
		0x30d1c, 0x30d20,
		0x30d3c, 0x30d3c,
		0x30d48, 0x30d50,
		0x31200, 0x3120c,
		0x31220, 0x31220,
		0x31240, 0x31240,
		0x31600, 0x3160c,
		0x31a00, 0x31a1c,
		0x31e00, 0x31e20,
		0x31e38, 0x31e3c,
		0x31e80, 0x31e80,
		0x31e88, 0x31ea8,
		0x31eb0, 0x31eb4,
		0x31ec8, 0x31ed4,
		0x31fb8, 0x32004,
		0x32200, 0x32200,
		0x32208, 0x32240,
		0x32248, 0x32280,
		0x32288, 0x322c0,
		0x322c8, 0x322fc,
		0x32600, 0x32630,
		0x32a00, 0x32abc,
		0x32b00, 0x32b10,
		0x32b20, 0x32b30,
		0x32b40, 0x32b50,
		0x32b60, 0x32b70,
		0x33000, 0x33028,
		0x33030, 0x33048,
		0x33060, 0x33068,
		0x33070, 0x3309c,
		0x330f0, 0x33128,
		0x33130, 0x33148,
		0x33160, 0x33168,
		0x33170, 0x3319c,
		0x331f0, 0x33238,
		0x33240, 0x33240,
		0x33248, 0x33250,
		0x3325c, 0x33264,
		0x33270, 0x332b8,
		0x332c0, 0x332e4,
		0x332f8, 0x33338,
		0x33340, 0x33340,
		0x33348, 0x33350,
		0x3335c, 0x33364,
		0x33370, 0x333b8,
		0x333c0, 0x333e4,
		0x333f8, 0x33428,
		0x33430, 0x33448,
		0x33460, 0x33468,
		0x33470, 0x3349c,
		0x334f0, 0x33528,
		0x33530, 0x33548,
		0x33560, 0x33568,
		0x33570, 0x3359c,
		0x335f0, 0x33638,
		0x33640, 0x33640,
		0x33648, 0x33650,
		0x3365c, 0x33664,
		0x33670, 0x336b8,
		0x336c0, 0x336e4,
		0x336f8, 0x33738,
		0x33740, 0x33740,
		0x33748, 0x33750,
		0x3375c, 0x33764,
		0x33770, 0x337b8,
		0x337c0, 0x337e4,
		0x337f8, 0x337fc,
		0x33814, 0x33814,
		0x3382c, 0x3382c,
		0x33880, 0x3388c,
		0x338e8, 0x338ec,
		0x33900, 0x33928,
		0x33930, 0x33948,
		0x33960, 0x33968,
		0x33970, 0x3399c,
		0x339f0, 0x33a38,
		0x33a40, 0x33a40,
		0x33a48, 0x33a50,
		0x33a5c, 0x33a64,
		0x33a70, 0x33ab8,
		0x33ac0, 0x33ae4,
		0x33af8, 0x33b10,
		0x33b28, 0x33b28,
		0x33b3c, 0x33b50,
		0x33bf0, 0x33c10,
		0x33c28, 0x33c28,
		0x33c3c, 0x33c50,
		0x33cf0, 0x33cfc,
		0x34000, 0x34030,
		0x34100, 0x34144,
		0x34190, 0x341a0,
		0x341a8, 0x341b8,
		0x341c4, 0x341c8,
		0x341d0, 0x341d0,
		0x34200, 0x34318,
		0x34400, 0x344b4,
		0x344c0, 0x3452c,
		0x34540, 0x3461c,
		0x34800, 0x34828,
		0x34834, 0x34834,
		0x348c0, 0x34908,
		0x34910, 0x349ac,
		0x34a00, 0x34a14,
		0x34a1c, 0x34a2c,
		0x34a44, 0x34a50,
		0x34a74, 0x34a74,
		0x34a7c, 0x34afc,
		0x34b08, 0x34c24,
		0x34d00, 0x34d00,
		0x34d08, 0x34d14,
		0x34d1c, 0x34d20,
		0x34d3c, 0x34d3c,
		0x34d48, 0x34d50,
		0x35200, 0x3520c,
		0x35220, 0x35220,
		0x35240, 0x35240,
		0x35600, 0x3560c,
		0x35a00, 0x35a1c,
		0x35e00, 0x35e20,
		0x35e38, 0x35e3c,
		0x35e80, 0x35e80,
		0x35e88, 0x35ea8,
		0x35eb0, 0x35eb4,
		0x35ec8, 0x35ed4,
		0x35fb8, 0x36004,
		0x36200, 0x36200,
		0x36208, 0x36240,
		0x36248, 0x36280,
		0x36288, 0x362c0,
		0x362c8, 0x362fc,
		0x36600, 0x36630,
		0x36a00, 0x36abc,
		0x36b00, 0x36b10,
		0x36b20, 0x36b30,
		0x36b40, 0x36b50,
		0x36b60, 0x36b70,
		0x37000, 0x37028,
		0x37030, 0x37048,
		0x37060, 0x37068,
		0x37070, 0x3709c,
		0x370f0, 0x37128,
		0x37130, 0x37148,
		0x37160, 0x37168,
		0x37170, 0x3719c,
		0x371f0, 0x37238,
		0x37240, 0x37240,
		0x37248, 0x37250,
		0x3725c, 0x37264,
		0x37270, 0x372b8,
		0x372c0, 0x372e4,
		0x372f8, 0x37338,
		0x37340, 0x37340,
		0x37348, 0x37350,
		0x3735c, 0x37364,
		0x37370, 0x373b8,
		0x373c0, 0x373e4,
		0x373f8, 0x37428,
		0x37430, 0x37448,
		0x37460, 0x37468,
		0x37470, 0x3749c,
		0x374f0, 0x37528,
		0x37530, 0x37548,
		0x37560, 0x37568,
		0x37570, 0x3759c,
		0x375f0, 0x37638,
		0x37640, 0x37640,
		0x37648, 0x37650,
		0x3765c, 0x37664,
		0x37670, 0x376b8,
		0x376c0, 0x376e4,
		0x376f8, 0x37738,
		0x37740, 0x37740,
		0x37748, 0x37750,
		0x3775c, 0x37764,
		0x37770, 0x377b8,
		0x377c0, 0x377e4,
		0x377f8, 0x377fc,
		0x37814, 0x37814,
		0x3782c, 0x3782c,
		0x37880, 0x3788c,
		0x378e8, 0x378ec,
		0x37900, 0x37928,
		0x37930, 0x37948,
		0x37960, 0x37968,
		0x37970, 0x3799c,
		0x379f0, 0x37a38,
		0x37a40, 0x37a40,
		0x37a48, 0x37a50,
		0x37a5c, 0x37a64,
		0x37a70, 0x37ab8,
		0x37ac0, 0x37ae4,
		0x37af8, 0x37b10,
		0x37b28, 0x37b28,
		0x37b3c, 0x37b50,
		0x37bf0, 0x37c10,
		0x37c28, 0x37c28,
		0x37c3c, 0x37c50,
		0x37cf0, 0x37cfc,
		0x38000, 0x38030,
		0x38100, 0x38144,
		0x38190, 0x381a0,
		0x381a8, 0x381b8,
		0x381c4, 0x381c8,
		0x381d0, 0x381d0,
		0x38200, 0x38318,
		0x38400, 0x384b4,
		0x384c0, 0x3852c,
		0x38540, 0x3861c,
		0x38800, 0x38828,
		0x38834, 0x38834,
		0x388c0, 0x38908,
		0x38910, 0x389ac,
		0x38a00, 0x38a14,
		0x38a1c, 0x38a2c,
		0x38a44, 0x38a50,
		0x38a74, 0x38a74,
		0x38a7c, 0x38afc,
		0x38b08, 0x38c24,
		0x38d00, 0x38d00,
		0x38d08, 0x38d14,
		0x38d1c, 0x38d20,
		0x38d3c, 0x38d3c,
		0x38d48, 0x38d50,
		0x39200, 0x3920c,
		0x39220, 0x39220,
		0x39240, 0x39240,
		0x39600, 0x3960c,
		0x39a00, 0x39a1c,
		0x39e00, 0x39e20,
		0x39e38, 0x39e3c,
		0x39e80, 0x39e80,
		0x39e88, 0x39ea8,
		0x39eb0, 0x39eb4,
		0x39ec8, 0x39ed4,
		0x39fb8, 0x3a004,
		0x3a200, 0x3a200,
		0x3a208, 0x3a240,
		0x3a248, 0x3a280,
		0x3a288, 0x3a2c0,
		0x3a2c8, 0x3a2fc,
		0x3a600, 0x3a630,
		0x3aa00, 0x3aabc,
		0x3ab00, 0x3ab10,
		0x3ab20, 0x3ab30,
		0x3ab40, 0x3ab50,
		0x3ab60, 0x3ab70,
		0x3b000, 0x3b028,
		0x3b030, 0x3b048,
		0x3b060, 0x3b068,
		0x3b070, 0x3b09c,
		0x3b0f0, 0x3b128,
		0x3b130, 0x3b148,
		0x3b160, 0x3b168,
		0x3b170, 0x3b19c,
		0x3b1f0, 0x3b238,
		0x3b240, 0x3b240,
		0x3b248, 0x3b250,
		0x3b25c, 0x3b264,
		0x3b270, 0x3b2b8,
		0x3b2c0, 0x3b2e4,
		0x3b2f8, 0x3b338,
		0x3b340, 0x3b340,
		0x3b348, 0x3b350,
		0x3b35c, 0x3b364,
		0x3b370, 0x3b3b8,
		0x3b3c0, 0x3b3e4,
		0x3b3f8, 0x3b428,
		0x3b430, 0x3b448,
		0x3b460, 0x3b468,
		0x3b470, 0x3b49c,
		0x3b4f0, 0x3b528,
		0x3b530, 0x3b548,
		0x3b560, 0x3b568,
		0x3b570, 0x3b59c,
		0x3b5f0, 0x3b638,
		0x3b640, 0x3b640,
		0x3b648, 0x3b650,
		0x3b65c, 0x3b664,
		0x3b670, 0x3b6b8,
		0x3b6c0, 0x3b6e4,
		0x3b6f8, 0x3b738,
		0x3b740, 0x3b740,
		0x3b748, 0x3b750,
		0x3b75c, 0x3b764,
		0x3b770, 0x3b7b8,
		0x3b7c0, 0x3b7e4,
		0x3b7f8, 0x3b7fc,
		0x3b814, 0x3b814,
		0x3b82c, 0x3b82c,
		0x3b880, 0x3b88c,
		0x3b8e8, 0x3b8ec,
		0x3b900, 0x3b928,
		0x3b930, 0x3b948,
		0x3b960, 0x3b968,
		0x3b970, 0x3b99c,
		0x3b9f0, 0x3ba38,
		0x3ba40, 0x3ba40,
		0x3ba48, 0x3ba50,
		0x3ba5c, 0x3ba64,
		0x3ba70, 0x3bab8,
		0x3bac0, 0x3bae4,
		0x3baf8, 0x3bb10,
		0x3bb28, 0x3bb28,
		0x3bb3c, 0x3bb50,
		0x3bbf0, 0x3bc10,
		0x3bc28, 0x3bc28,
		0x3bc3c, 0x3bc50,
		0x3bcf0, 0x3bcfc,
		0x3c000, 0x3c030,
		0x3c100, 0x3c144,
		0x3c190, 0x3c1a0,
		0x3c1a8, 0x3c1b8,
		0x3c1c4, 0x3c1c8,
		0x3c1d0, 0x3c1d0,
		0x3c200, 0x3c318,
		0x3c400, 0x3c4b4,
		0x3c4c0, 0x3c52c,
		0x3c540, 0x3c61c,
		0x3c800, 0x3c828,
		0x3c834, 0x3c834,
		0x3c8c0, 0x3c908,
		0x3c910, 0x3c9ac,
		0x3ca00, 0x3ca14,
		0x3ca1c, 0x3ca2c,
		0x3ca44, 0x3ca50,
		0x3ca74, 0x3ca74,
		0x3ca7c, 0x3cafc,
		0x3cb08, 0x3cc24,
		0x3cd00, 0x3cd00,
		0x3cd08, 0x3cd14,
		0x3cd1c, 0x3cd20,
		0x3cd3c, 0x3cd3c,
		0x3cd48, 0x3cd50,
		0x3d200, 0x3d20c,
		0x3d220, 0x3d220,
		0x3d240, 0x3d240,
		0x3d600, 0x3d60c,
		0x3da00, 0x3da1c,
		0x3de00, 0x3de20,
		0x3de38, 0x3de3c,
		0x3de80, 0x3de80,
		0x3de88, 0x3dea8,
		0x3deb0, 0x3deb4,
		0x3dec8, 0x3ded4,
		0x3dfb8, 0x3e004,
		0x3e200, 0x3e200,
		0x3e208, 0x3e240,
		0x3e248, 0x3e280,
		0x3e288, 0x3e2c0,
		0x3e2c8, 0x3e2fc,
		0x3e600, 0x3e630,
		0x3ea00, 0x3eabc,
		0x3eb00, 0x3eb10,
		0x3eb20, 0x3eb30,
		0x3eb40, 0x3eb50,
		0x3eb60, 0x3eb70,
		0x3f000, 0x3f028,
		0x3f030, 0x3f048,
		0x3f060, 0x3f068,
		0x3f070, 0x3f09c,
		0x3f0f0, 0x3f128,
		0x3f130, 0x3f148,
		0x3f160, 0x3f168,
		0x3f170, 0x3f19c,
		0x3f1f0, 0x3f238,
		0x3f240, 0x3f240,
		0x3f248, 0x3f250,
		0x3f25c, 0x3f264,
		0x3f270, 0x3f2b8,
		0x3f2c0, 0x3f2e4,
		0x3f2f8, 0x3f338,
		0x3f340, 0x3f340,
		0x3f348, 0x3f350,
		0x3f35c, 0x3f364,
		0x3f370, 0x3f3b8,
		0x3f3c0, 0x3f3e4,
		0x3f3f8, 0x3f428,
		0x3f430, 0x3f448,
		0x3f460, 0x3f468,
		0x3f470, 0x3f49c,
		0x3f4f0, 0x3f528,
		0x3f530, 0x3f548,
		0x3f560, 0x3f568,
		0x3f570, 0x3f59c,
		0x3f5f0, 0x3f638,
		0x3f640, 0x3f640,
		0x3f648, 0x3f650,
		0x3f65c, 0x3f664,
		0x3f670, 0x3f6b8,
		0x3f6c0, 0x3f6e4,
		0x3f6f8, 0x3f738,
		0x3f740, 0x3f740,
		0x3f748, 0x3f750,
		0x3f75c, 0x3f764,
		0x3f770, 0x3f7b8,
		0x3f7c0, 0x3f7e4,
		0x3f7f8, 0x3f7fc,
		0x3f814, 0x3f814,
		0x3f82c, 0x3f82c,
		0x3f880, 0x3f88c,
		0x3f8e8, 0x3f8ec,
		0x3f900, 0x3f928,
		0x3f930, 0x3f948,
		0x3f960, 0x3f968,
		0x3f970, 0x3f99c,
		0x3f9f0, 0x3fa38,
		0x3fa40, 0x3fa40,
		0x3fa48, 0x3fa50,
		0x3fa5c, 0x3fa64,
		0x3fa70, 0x3fab8,
		0x3fac0, 0x3fae4,
		0x3faf8, 0x3fb10,
		0x3fb28, 0x3fb28,
		0x3fb3c, 0x3fb50,
		0x3fbf0, 0x3fc10,
		0x3fc28, 0x3fc28,
		0x3fc3c, 0x3fc50,
		0x3fcf0, 0x3fcfc,
		0x40000, 0x4000c,
		0x40040, 0x40050,
		0x40060, 0x40068,
		0x4007c, 0x4008c,
		0x40094, 0x400b0,
		0x400c0, 0x40144,
		0x40180, 0x4018c,
		0x40200, 0x40254,
		0x40260, 0x40264,
		0x40270, 0x40288,
		0x40290, 0x40298,
		0x402ac, 0x402c8,
		0x402d0, 0x402e0,
		0x402f0, 0x402f0,
		0x40300, 0x4033c,
		0x403f8, 0x403fc,
		0x41304, 0x413c4,
		0x41400, 0x4140c,
		0x41414, 0x4141c,
		0x41480, 0x414d0,
		0x44000, 0x44054,
		0x4405c, 0x44078,
		0x440c0, 0x44174,
		0x44180, 0x441ac,
		0x441b4, 0x441b8,
		0x441c0, 0x44254,
		0x4425c, 0x44278,
		0x442c0, 0x44374,
		0x44380, 0x443ac,
		0x443b4, 0x443b8,
		0x443c0, 0x44454,
		0x4445c, 0x44478,
		0x444c0, 0x44574,
		0x44580, 0x445ac,
		0x445b4, 0x445b8,
		0x445c0, 0x44654,
		0x4465c, 0x44678,
		0x446c0, 0x44774,
		0x44780, 0x447ac,
		0x447b4, 0x447b8,
		0x447c0, 0x44854,
		0x4485c, 0x44878,
		0x448c0, 0x44974,
		0x44980, 0x449ac,
		0x449b4, 0x449b8,
		0x449c0, 0x449fc,
		0x45000, 0x45004,
		0x45010, 0x45030,
		0x45040, 0x45060,
		0x45068, 0x45068,
		0x45080, 0x45084,
		0x450a0, 0x450b0,
		0x45200, 0x45204,
		0x45210, 0x45230,
		0x45240, 0x45260,
		0x45268, 0x45268,
		0x45280, 0x45284,
		0x452a0, 0x452b0,
		0x460c0, 0x460e4,
		0x47000, 0x4703c,
		0x47044, 0x4708c,
		0x47200, 0x47250,
		0x47400, 0x47408,
		0x47414, 0x47420,
		0x47600, 0x47618,
		0x47800, 0x47814,
		0x48000, 0x4800c,
		0x48040, 0x48050,
		0x48060, 0x48068,
		0x4807c, 0x4808c,
		0x48094, 0x480b0,
		0x480c0, 0x48144,
		0x48180, 0x4818c,
		0x48200, 0x48254,
		0x48260, 0x48264,
		0x48270, 0x48288,
		0x48290, 0x48298,
		0x482ac, 0x482c8,
		0x482d0, 0x482e0,
		0x482f0, 0x482f0,
		0x48300, 0x4833c,
		0x483f8, 0x483fc,
		0x49304, 0x493c4,
		0x49400, 0x4940c,
		0x49414, 0x4941c,
		0x49480, 0x494d0,
		0x4c000, 0x4c054,
		0x4c05c, 0x4c078,
		0x4c0c0, 0x4c174,
		0x4c180, 0x4c1ac,
		0x4c1b4, 0x4c1b8,
		0x4c1c0, 0x4c254,
		0x4c25c, 0x4c278,
		0x4c2c0, 0x4c374,
		0x4c380, 0x4c3ac,
		0x4c3b4, 0x4c3b8,
		0x4c3c0, 0x4c454,
		0x4c45c, 0x4c478,
		0x4c4c0, 0x4c574,
		0x4c580, 0x4c5ac,
		0x4c5b4, 0x4c5b8,
		0x4c5c0, 0x4c654,
		0x4c65c, 0x4c678,
		0x4c6c0, 0x4c774,
		0x4c780, 0x4c7ac,
		0x4c7b4, 0x4c7b8,
		0x4c7c0, 0x4c854,
		0x4c85c, 0x4c878,
		0x4c8c0, 0x4c974,
		0x4c980, 0x4c9ac,
		0x4c9b4, 0x4c9b8,
		0x4c9c0, 0x4c9fc,
		0x4d000, 0x4d004,
		0x4d010, 0x4d030,
		0x4d040, 0x4d060,
		0x4d068, 0x4d068,
		0x4d080, 0x4d084,
		0x4d0a0, 0x4d0b0,
		0x4d200, 0x4d204,
		0x4d210, 0x4d230,
		0x4d240, 0x4d260,
		0x4d268, 0x4d268,
		0x4d280, 0x4d284,
		0x4d2a0, 0x4d2b0,
		0x4e0c0, 0x4e0e4,
		0x4f000, 0x4f03c,
		0x4f044, 0x4f08c,
		0x4f200, 0x4f250,
		0x4f400, 0x4f408,
		0x4f414, 0x4f420,
		0x4f600, 0x4f618,
		0x4f800, 0x4f814,
		0x50000, 0x50084,
		0x50090, 0x500cc,
		0x50400, 0x50400,
		0x50800, 0x50884,
		0x50890, 0x508cc,
		0x50c00, 0x50c00,
		0x51000, 0x5101c,
		0x51300, 0x51308,
	};

	static const unsigned int t6_reg_ranges[] = {
		0x1008, 0x101c,
		0x1024, 0x10a8,
		0x10b4, 0x10f8,
		0x1100, 0x1114,
		0x111c, 0x112c,
		0x1138, 0x113c,
		0x1144, 0x114c,
		0x1180, 0x1184,
		0x1190, 0x1194,
		0x11a0, 0x11a4,
		0x11b0, 0x11c4,
		0x11fc, 0x1274,
		0x1280, 0x133c,
		0x1800, 0x18fc,
		0x3000, 0x302c,
		0x3060, 0x30b0,
		0x30b8, 0x30d8,
		0x30e0, 0x30fc,
		0x3140, 0x357c,
		0x35a8, 0x35cc,
		0x35ec, 0x35ec,
		0x3600, 0x5624,
		0x56cc, 0x56ec,
		0x56f4, 0x5720,
		0x5728, 0x575c,
		0x580c, 0x5814,
		0x5890, 0x589c,
		0x58a4, 0x58ac,
		0x58b8, 0x58bc,
		0x5940, 0x595c,
		0x5980, 0x598c,
		0x59b0, 0x59c8,
		0x59d0, 0x59dc,
		0x59fc, 0x5a18,
		0x5a60, 0x5a6c,
		0x5a80, 0x5a8c,
		0x5a94, 0x5a9c,
		0x5b94, 0x5bfc,
		0x5c10, 0x5e48,
		0x5e50, 0x5e94,
		0x5ea0, 0x5eb0,
		0x5ec0, 0x5ec0,
		0x5ec8, 0x5ed0,
		0x5ee0, 0x5ee0,
		0x5ef0, 0x5ef0,
		0x5f00, 0x5f00,
		0x6000, 0x6020,
		0x6028, 0x6040,
		0x6058, 0x609c,
		0x60a8, 0x619c,
		0x7700, 0x7798,
		0x77c0, 0x7880,
		0x78cc, 0x78fc,
		0x7b00, 0x7b58,
		0x7b60, 0x7b84,
		0x7b8c, 0x7c54,
		0x7d00, 0x7d38,
		0x7d40, 0x7d84,
		0x7d8c, 0x7ddc,
		0x7de4, 0x7e04,
		0x7e10, 0x7e1c,
		0x7e24, 0x7e38,
		0x7e40, 0x7e44,
		0x7e4c, 0x7e78,
		0x7e80, 0x7edc,
		0x7ee8, 0x7efc,
		0x8dc0, 0x8de0,
		0x8df8, 0x8e04,
		0x8e10, 0x8e84,
		0x8ea0, 0x8f88,
		0x8fb8, 0x9058,
		0x9060, 0x9060,
		0x9068, 0x90f8,
		0x9100, 0x9124,
		0x9400, 0x9470,
		0x9600, 0x9600,
		0x9608, 0x9638,
		0x9640, 0x9704,
		0x9710, 0x971c,
		0x9800, 0x9808,
		0x9820, 0x983c,
		0x9850, 0x9864,
		0x9c00, 0x9c6c,
		0x9c80, 0x9cec,
		0x9d00, 0x9d6c,
		0x9d80, 0x9dec,
		0x9e00, 0x9e6c,
		0x9e80, 0x9eec,
		0x9f00, 0x9f6c,
		0x9f80, 0xa020,
		0xd004, 0xd03c,
		0xd100, 0xd118,
		0xd200, 0xd214,
		0xd220, 0xd234,
		0xd240, 0xd254,
		0xd260, 0xd274,
		0xd280, 0xd294,
		0xd2a0, 0xd2b4,
		0xd2c0, 0xd2d4,
		0xd2e0, 0xd2f4,
		0xd300, 0xd31c,
		0xdfc0, 0xdfe0,
		0xe000, 0xf008,
		0xf010, 0xf018,
		0xf020, 0xf028,
		0x11000, 0x11014,
		0x11048, 0x1106c,
		0x11074, 0x11088,
		0x11098, 0x11120,
		0x1112c, 0x1117c,
		0x11190, 0x112e0,
		0x11300, 0x1130c,
		0x12000, 0x1206c,
		0x19040, 0x1906c,
		0x19078, 0x19080,
		0x1908c, 0x190e8,
		0x190f0, 0x190f8,
		0x19100, 0x19110,
		0x19120, 0x19124,
		0x19150, 0x19194,
		0x1919c, 0x191b0,
		0x191d0, 0x191e8,
		0x19238, 0x19290,
		0x192a4, 0x192b0,
		0x19348, 0x1934c,
		0x193f8, 0x19418,
		0x19420, 0x19428,
		0x19430, 0x19444,
		0x1944c, 0x1946c,
		0x19474, 0x19474,
		0x19490, 0x194cc,
		0x194f0, 0x194f8,
		0x19c00, 0x19c48,
		0x19c50, 0x19c80,
		0x19c94, 0x19c98,
		0x19ca0, 0x19cbc,
		0x19ce4, 0x19ce4,
		0x19cf0, 0x19cf8,
		0x19d00, 0x19d28,
		0x19d50, 0x19d78,
		0x19d94, 0x19d98,
		0x19da0, 0x19de0,
		0x19df0, 0x19e10,
		0x19e50, 0x19e6c,
		0x19ea0, 0x19ebc,
		0x19ec4, 0x19ef4,
		0x19f04, 0x19f2c,
		0x19f34, 0x19f34,
		0x19f40, 0x19f50,
		0x19f90, 0x19fac,
		0x19fc4, 0x19fc8,
		0x19fd0, 0x19fe4,
		0x1a000, 0x1a004,
		0x1a010, 0x1a06c,
		0x1a0b0, 0x1a0e4,
		0x1a0ec, 0x1a0f8,
		0x1a100, 0x1a108,
		0x1a114, 0x1a120,
		0x1a128, 0x1a130,
		0x1a138, 0x1a138,
		0x1a190, 0x1a1c4,
		0x1a1fc, 0x1a1fc,
		0x1e008, 0x1e00c,
		0x1e040, 0x1e044,
		0x1e04c, 0x1e04c,
		0x1e284, 0x1e290,
		0x1e2c0, 0x1e2c0,
		0x1e2e0, 0x1e2e0,
		0x1e300, 0x1e384,
		0x1e3c0, 0x1e3c8,
		0x1e408, 0x1e40c,
		0x1e440, 0x1e444,
		0x1e44c, 0x1e44c,
		0x1e684, 0x1e690,
		0x1e6c0, 0x1e6c0,
		0x1e6e0, 0x1e6e0,
		0x1e700, 0x1e784,
		0x1e7c0, 0x1e7c8,
		0x1e808, 0x1e80c,
		0x1e840, 0x1e844,
		0x1e84c, 0x1e84c,
		0x1ea84, 0x1ea90,
		0x1eac0, 0x1eac0,
		0x1eae0, 0x1eae0,
		0x1eb00, 0x1eb84,
		0x1ebc0, 0x1ebc8,
		0x1ec08, 0x1ec0c,
		0x1ec40, 0x1ec44,
		0x1ec4c, 0x1ec4c,
		0x1ee84, 0x1ee90,
		0x1eec0, 0x1eec0,
		0x1eee0, 0x1eee0,
		0x1ef00, 0x1ef84,
		0x1efc0, 0x1efc8,
		0x1f008, 0x1f00c,
		0x1f040, 0x1f044,
		0x1f04c, 0x1f04c,
		0x1f284, 0x1f290,
		0x1f2c0, 0x1f2c0,
		0x1f2e0, 0x1f2e0,
		0x1f300, 0x1f384,
		0x1f3c0, 0x1f3c8,
		0x1f408, 0x1f40c,
		0x1f440, 0x1f444,
		0x1f44c, 0x1f44c,
		0x1f684, 0x1f690,
		0x1f6c0, 0x1f6c0,
		0x1f6e0, 0x1f6e0,
		0x1f700, 0x1f784,
		0x1f7c0, 0x1f7c8,
		0x1f808, 0x1f80c,
		0x1f840, 0x1f844,
		0x1f84c, 0x1f84c,
		0x1fa84, 0x1fa90,
		0x1fac0, 0x1fac0,
		0x1fae0, 0x1fae0,
		0x1fb00, 0x1fb84,
		0x1fbc0, 0x1fbc8,
		0x1fc08, 0x1fc0c,
		0x1fc40, 0x1fc44,
		0x1fc4c, 0x1fc4c,
		0x1fe84, 0x1fe90,
		0x1fec0, 0x1fec0,
		0x1fee0, 0x1fee0,
		0x1ff00, 0x1ff84,
		0x1ffc0, 0x1ffc8,
		0x30000, 0x30030,
		0x30100, 0x30168,
		0x30190, 0x301a0,
		0x301a8, 0x301b8,
		0x301c4, 0x301c8,
		0x301d0, 0x301d0,
		0x30200, 0x30320,
		0x30400, 0x304b4,
		0x304c0, 0x3052c,
		0x30540, 0x3061c,
		0x30800, 0x308a0,
		0x308c0, 0x30908,
		0x30910, 0x309b8,
		0x30a00, 0x30a04,
		0x30a0c, 0x30a14,
		0x30a1c, 0x30a2c,
		0x30a44, 0x30a50,
		0x30a74, 0x30a74,
		0x30a7c, 0x30afc,
		0x30b08, 0x30c24,
		0x30d00, 0x30d14,
		0x30d1c, 0x30d3c,
		0x30d44, 0x30d4c,
		0x30d54, 0x30d74,
		0x30d7c, 0x30d7c,
		0x30de0, 0x30de0,
		0x30e00, 0x30ed4,
		0x30f00, 0x30fa4,
		0x30fc0, 0x30fc4,
		0x31000, 0x31004,
		0x31080, 0x310fc,
		0x31208, 0x31220,
		0x3123c, 0x31254,
		0x31300, 0x31300,
		0x31308, 0x3131c,
		0x31338, 0x3133c,
		0x31380, 0x31380,
		0x31388, 0x313a8,
		0x313b4, 0x313b4,
		0x31400, 0x31420,
		0x31438, 0x3143c,
		0x31480, 0x31480,
		0x314a8, 0x314a8,
		0x314b0, 0x314b4,
		0x314c8, 0x314d4,
		0x31a40, 0x31a4c,
		0x31af0, 0x31b20,
		0x31b38, 0x31b3c,
		0x31b80, 0x31b80,
		0x31ba8, 0x31ba8,
		0x31bb0, 0x31bb4,
		0x31bc8, 0x31bd4,
		0x32140, 0x3218c,
		0x321f0, 0x321f4,
		0x32200, 0x32200,
		0x32218, 0x32218,
		0x32400, 0x32400,
		0x32408, 0x3241c,
		0x32618, 0x32620,
		0x32664, 0x32664,
		0x326a8, 0x326a8,
		0x326ec, 0x326ec,
		0x32a00, 0x32abc,
		0x32b00, 0x32b18,
		0x32b20, 0x32b38,
		0x32b40, 0x32b58,
		0x32b60, 0x32b78,
		0x32c00, 0x32c00,
		0x32c08, 0x32c3c,
		0x33000, 0x3302c,
		0x33034, 0x33050,
		0x33058, 0x33058,
		0x33060, 0x3308c,
		0x3309c, 0x330ac,
		0x330c0, 0x330c0,
		0x330c8, 0x330d0,
		0x330d8, 0x330e0,
		0x330ec, 0x3312c,
		0x33134, 0x33150,
		0x33158, 0x33158,
		0x33160, 0x3318c,
		0x3319c, 0x331ac,
		0x331c0, 0x331c0,
		0x331c8, 0x331d0,
		0x331d8, 0x331e0,
		0x331ec, 0x33290,
		0x33298, 0x332c4,
		0x332e4, 0x33390,
		0x33398, 0x333c4,
		0x333e4, 0x3342c,
		0x33434, 0x33450,
		0x33458, 0x33458,
		0x33460, 0x3348c,
		0x3349c, 0x334ac,
		0x334c0, 0x334c0,
		0x334c8, 0x334d0,
		0x334d8, 0x334e0,
		0x334ec, 0x3352c,
		0x33534, 0x33550,
		0x33558, 0x33558,
		0x33560, 0x3358c,
		0x3359c, 0x335ac,
		0x335c0, 0x335c0,
		0x335c8, 0x335d0,
		0x335d8, 0x335e0,
		0x335ec, 0x33690,
		0x33698, 0x336c4,
		0x336e4, 0x33790,
		0x33798, 0x337c4,
		0x337e4, 0x337fc,
		0x33814, 0x33814,
		0x33854, 0x33868,
		0x33880, 0x3388c,
		0x338c0, 0x338d0,
		0x338e8, 0x338ec,
		0x33900, 0x3392c,
		0x33934, 0x33950,
		0x33958, 0x33958,
		0x33960, 0x3398c,
		0x3399c, 0x339ac,
		0x339c0, 0x339c0,
		0x339c8, 0x339d0,
		0x339d8, 0x339e0,
		0x339ec, 0x33a90,
		0x33a98, 0x33ac4,
		0x33ae4, 0x33b10,
		0x33b24, 0x33b28,
		0x33b38, 0x33b50,
		0x33bf0, 0x33c10,
		0x33c24, 0x33c28,
		0x33c38, 0x33c50,
		0x33cf0, 0x33cfc,
		0x34000, 0x34030,
		0x34100, 0x34168,
		0x34190, 0x341a0,
		0x341a8, 0x341b8,
		0x341c4, 0x341c8,
		0x341d0, 0x341d0,
		0x34200, 0x34320,
		0x34400, 0x344b4,
		0x344c0, 0x3452c,
		0x34540, 0x3461c,
		0x34800, 0x348a0,
		0x348c0, 0x34908,
		0x34910, 0x349b8,
		0x34a00, 0x34a04,
		0x34a0c, 0x34a14,
		0x34a1c, 0x34a2c,
		0x34a44, 0x34a50,
		0x34a74, 0x34a74,
		0x34a7c, 0x34afc,
		0x34b08, 0x34c24,
		0x34d00, 0x34d14,
		0x34d1c, 0x34d3c,
		0x34d44, 0x34d4c,
		0x34d54, 0x34d74,
		0x34d7c, 0x34d7c,
		0x34de0, 0x34de0,
		0x34e00, 0x34ed4,
		0x34f00, 0x34fa4,
		0x34fc0, 0x34fc4,
		0x35000, 0x35004,
		0x35080, 0x350fc,
		0x35208, 0x35220,
		0x3523c, 0x35254,
		0x35300, 0x35300,
		0x35308, 0x3531c,
		0x35338, 0x3533c,
		0x35380, 0x35380,
		0x35388, 0x353a8,
		0x353b4, 0x353b4,
		0x35400, 0x35420,
		0x35438, 0x3543c,
		0x35480, 0x35480,
		0x354a8, 0x354a8,
		0x354b0, 0x354b4,
		0x354c8, 0x354d4,
		0x35a40, 0x35a4c,
		0x35af0, 0x35b20,
		0x35b38, 0x35b3c,
		0x35b80, 0x35b80,
		0x35ba8, 0x35ba8,
		0x35bb0, 0x35bb4,
		0x35bc8, 0x35bd4,
		0x36140, 0x3618c,
		0x361f0, 0x361f4,
		0x36200, 0x36200,
		0x36218, 0x36218,
		0x36400, 0x36400,
		0x36408, 0x3641c,
		0x36618, 0x36620,
		0x36664, 0x36664,
		0x366a8, 0x366a8,
		0x366ec, 0x366ec,
		0x36a00, 0x36abc,
		0x36b00, 0x36b18,
		0x36b20, 0x36b38,
		0x36b40, 0x36b58,
		0x36b60, 0x36b78,
		0x36c00, 0x36c00,
		0x36c08, 0x36c3c,
		0x37000, 0x3702c,
		0x37034, 0x37050,
		0x37058, 0x37058,
		0x37060, 0x3708c,
		0x3709c, 0x370ac,
		0x370c0, 0x370c0,
		0x370c8, 0x370d0,
		0x370d8, 0x370e0,
		0x370ec, 0x3712c,
		0x37134, 0x37150,
		0x37158, 0x37158,
		0x37160, 0x3718c,
		0x3719c, 0x371ac,
		0x371c0, 0x371c0,
		0x371c8, 0x371d0,
		0x371d8, 0x371e0,
		0x371ec, 0x37290,
		0x37298, 0x372c4,
		0x372e4, 0x37390,
		0x37398, 0x373c4,
		0x373e4, 0x3742c,
		0x37434, 0x37450,
		0x37458, 0x37458,
		0x37460, 0x3748c,
		0x3749c, 0x374ac,
		0x374c0, 0x374c0,
		0x374c8, 0x374d0,
		0x374d8, 0x374e0,
		0x374ec, 0x3752c,
		0x37534, 0x37550,
		0x37558, 0x37558,
		0x37560, 0x3758c,
		0x3759c, 0x375ac,
		0x375c0, 0x375c0,
		0x375c8, 0x375d0,
		0x375d8, 0x375e0,
		0x375ec, 0x37690,
		0x37698, 0x376c4,
		0x376e4, 0x37790,
		0x37798, 0x377c4,
		0x377e4, 0x377fc,
		0x37814, 0x37814,
		0x37854, 0x37868,
		0x37880, 0x3788c,
		0x378c0, 0x378d0,
		0x378e8, 0x378ec,
		0x37900, 0x3792c,
		0x37934, 0x37950,
		0x37958, 0x37958,
		0x37960, 0x3798c,
		0x3799c, 0x379ac,
		0x379c0, 0x379c0,
		0x379c8, 0x379d0,
		0x379d8, 0x379e0,
		0x379ec, 0x37a90,
		0x37a98, 0x37ac4,
		0x37ae4, 0x37b10,
		0x37b24, 0x37b28,
		0x37b38, 0x37b50,
		0x37bf0, 0x37c10,
		0x37c24, 0x37c28,
		0x37c38, 0x37c50,
		0x37cf0, 0x37cfc,
		0x40040, 0x40040,
		0x40080, 0x40084,
		0x40100, 0x40100,
		0x40140, 0x401bc,
		0x40200, 0x40214,
		0x40228, 0x40228,
		0x40240, 0x40258,
		0x40280, 0x40280,
		0x40304, 0x40304,
		0x40330, 0x4033c,
		0x41304, 0x413c8,
		0x413d0, 0x413dc,
		0x413f0, 0x413f0,
		0x41400, 0x4140c,
		0x41414, 0x4141c,
		0x41480, 0x414d0,
		0x44000, 0x4407c,
		0x440c0, 0x441ac,
		0x441b4, 0x4427c,
		0x442c0, 0x443ac,
		0x443b4, 0x4447c,
		0x444c0, 0x445ac,
		0x445b4, 0x4467c,
		0x446c0, 0x447ac,
		0x447b4, 0x4487c,
		0x448c0, 0x449ac,
		0x449b4, 0x44a7c,
		0x44ac0, 0x44bac,
		0x44bb4, 0x44c7c,
		0x44cc0, 0x44dac,
		0x44db4, 0x44e7c,
		0x44ec0, 0x44fac,
		0x44fb4, 0x4507c,
		0x450c0, 0x451ac,
		0x451b4, 0x451fc,
		0x45800, 0x45804,
		0x45810, 0x45830,
		0x45840, 0x45860,
		0x45868, 0x45868,
		0x45880, 0x45884,
		0x458a0, 0x458b0,
		0x45a00, 0x45a04,
		0x45a10, 0x45a30,
		0x45a40, 0x45a60,
		0x45a68, 0x45a68,
		0x45a80, 0x45a84,
		0x45aa0, 0x45ab0,
		0x460c0, 0x460e4,
		0x47000, 0x4703c,
		0x47044, 0x4708c,
		0x47200, 0x47250,
		0x47400, 0x47408,
		0x47414, 0x47420,
		0x47600, 0x47618,
		0x47800, 0x47814,
		0x47820, 0x4782c,
		0x50000, 0x50084,
		0x50090, 0x500cc,
		0x50300, 0x50384,
		0x50400, 0x50400,
		0x50800, 0x50884,
		0x50890, 0x508cc,
		0x50b00, 0x50b84,
		0x50c00, 0x50c00,
		0x51000, 0x51020,
		0x51028, 0x510b0,
		0x51300, 0x51324,
	};

	u32 *buf_end = (u32 *)((char *)buf + buf_size);
	const unsigned int *reg_ranges;
	int reg_ranges_size, range;
	unsigned int chip_version = CHELSIO_CHIP_VERSION(adap->params.chip);

	/* Select the right set of register ranges to dump depending on the
	 * adapter chip type.
	 */
	switch (chip_version) {
	case CHELSIO_T4:
		reg_ranges = t4_reg_ranges;
		reg_ranges_size = ARRAY_SIZE(t4_reg_ranges);
		break;

	case CHELSIO_T5:
		reg_ranges = t5_reg_ranges;
		reg_ranges_size = ARRAY_SIZE(t5_reg_ranges);
		break;

	case CHELSIO_T6:
		reg_ranges = t6_reg_ranges;
		reg_ranges_size = ARRAY_SIZE(t6_reg_ranges);
		break;

	default:
		CH_ERR(adap,
			"Unsupported chip version %d\n", chip_version);
		return;
	}

	/* Clear the register buffer and insert the appropriate register
	 * values selected by the above register ranges.
	 */
	memset(buf, 0, buf_size);
	for (range = 0; range < reg_ranges_size; range += 2) {
		unsigned int reg = reg_ranges[range];
		unsigned int last_reg = reg_ranges[range + 1];
		u32 *bufp = (u32 *)((char *)buf + reg);

		/* Iterate across the register range filling in the register
		 * buffer but don't write past the end of the register buffer.
		 */
		while (reg <= last_reg && bufp < buf_end) {
			*bufp++ = t4_read_reg(adap, reg);
			reg += sizeof(u32);
		}
	}
}

/*
 * EEPROM reads take a few tens of us while writes can take a bit over 5 ms.
 */
#define EEPROM_DELAY		10		// 10us per poll spin
#define EEPROM_MAX_POLL		5000		// x 5000 == 50ms

#define EEPROM_STAT_ADDR	0x7bfc
#define VPD_SIZE		0x800
#define VPD_BASE		0x400
#define VPD_BASE_OLD		0
#define VPD_LEN			1024
#define VPD_INFO_FLD_HDR_SIZE	3
#define CHELSIO_VPD_UNIQUE_ID	0x82

/*
 * Small utility function to wait till any outstanding VPD Access is complete.
 * We have a per-adapter state variable "VPD Busy" to indicate when we have a
 * VPD Access in flight.  This allows us to handle the problem of having a
 * previous VPD Access time out and prevent an attempt to inject a new VPD
 * Request before any in-flight VPD reguest has completed.
 */
static int t4_seeprom_wait(struct adapter *adapter)
{
	unsigned int base = adapter->params.pci.vpd_cap_addr;
	int max_poll;

	/*
	 * If no VPD Access is in flight, we can just return success right
	 * away.
	 */
	if (!adapter->vpd_busy)
		return 0;

	/*
	 * Poll the VPD Capability Address/Flag register waiting for it
	 * to indicate that the operation is complete.
	 */
	max_poll = EEPROM_MAX_POLL;
	do {
		u16 val;

		udelay(EEPROM_DELAY);
		t4_os_pci_read_cfg2(adapter, base + PCI_VPD_ADDR, &val);

		/*
		 * If the operation is complete, mark the VPD as no longer
		 * busy and return success.
		 */
		if ((val & PCI_VPD_ADDR_F) == adapter->vpd_flag) {
			adapter->vpd_busy = 0;
			return 0;
		}
	} while (--max_poll);

	/*
	 * Failure!  Note that we leave the VPD Busy status set in order to
	 * avoid pushing a new VPD Access request into the VPD Capability till
	 * the current operation eventually succeeds.  It's a bug to issue a
	 * new request when an existing request is in flight and will result
	 * in corrupt hardware state.
	 */
	return -ETIMEDOUT;
}

/**
 *	t4_seeprom_read - read a serial EEPROM location
 *	@adapter: adapter to read
 *	@addr: EEPROM virtual address
 *	@data: where to store the read data
 *
 *	Read a 32-bit word from a location in serial EEPROM using the card's PCI
 *	VPD capability.  Note that this function must be called with a virtual
 *	address.
 */
int t4_seeprom_read(struct adapter *adapter, u32 addr, u32 *data)
{
	unsigned int base = adapter->params.pci.vpd_cap_addr;
	int ret;

	/*
	 * VPD Accesses must alway be 4-byte aligned!
	 */
	if (addr >= EEPROMVSIZE || (addr & 3))
		return -EINVAL;

	/*
	 * Wait for any previous operation which may still be in flight to
	 * complete.
	 */
	ret = t4_seeprom_wait(adapter);
	if (ret) {
		CH_ERR(adapter, "VPD still busy from previous operation\n");
		return ret;
	}

	/*
	 * Issue our new VPD Read request, mark the VPD as being busy and wait
	 * for our request to complete.  If it doesn't complete, note the
	 * error and return it to our caller.  Note that we do not reset the
	 * VPD Busy status!
	 */
	t4_os_pci_write_cfg2(adapter, base + PCI_VPD_ADDR, (u16)addr);
	adapter->vpd_busy = 1;
	adapter->vpd_flag = PCI_VPD_ADDR_F;
	ret = t4_seeprom_wait(adapter);
	if (ret) {
		CH_ERR(adapter, "VPD read of address %#x failed\n", addr);
		return ret;
	}

	/*
	 * Grab the returned data, swizzle it into our endianess and
	 * return success.
	 */
	t4_os_pci_read_cfg4(adapter, base + PCI_VPD_DATA, data);
	*data = le32_to_cpu(*data);
	return 0;
}

/**
 *	t4_seeprom_write - write a serial EEPROM location
 *	@adapter: adapter to write
 *	@addr: virtual EEPROM address
 *	@data: value to write
 *
 *	Write a 32-bit word to a location in serial EEPROM using the card's PCI
 *	VPD capability.  Note that this function must be called with a virtual
 *	address.
 */
int t4_seeprom_write(struct adapter *adapter, u32 addr, u32 data)
{
	unsigned int base = adapter->params.pci.vpd_cap_addr;
	int ret;
	u32 stats_reg;
	int max_poll;

	/*
	 * VPD Accesses must alway be 4-byte aligned!
	 */
	if (addr >= EEPROMVSIZE || (addr & 3))
		return -EINVAL;

	/*
	 * Wait for any previous operation which may still be in flight to
	 * complete.
	 */
	ret = t4_seeprom_wait(adapter);
	if (ret) {
		CH_ERR(adapter, "VPD still busy from previous operation\n");
		return ret;
	}

	/*
	 * Issue our new VPD Read request, mark the VPD as being busy and wait
	 * for our request to complete.  If it doesn't complete, note the
	 * error and return it to our caller.  Note that we do not reset the
	 * VPD Busy status!
	 */
	t4_os_pci_write_cfg4(adapter, base + PCI_VPD_DATA,
				 cpu_to_le32(data));
	t4_os_pci_write_cfg2(adapter, base + PCI_VPD_ADDR,
				 (u16)addr | PCI_VPD_ADDR_F);
	adapter->vpd_busy = 1;
	adapter->vpd_flag = 0;
	ret = t4_seeprom_wait(adapter);
	if (ret) {
		CH_ERR(adapter, "VPD write of address %#x failed\n", addr);
		return ret;
	}

	/*
	 * Reset PCI_VPD_DATA register after a transaction and wait for our
	 * request to complete. If it doesn't complete, return error.
	 */
	t4_os_pci_write_cfg4(adapter, base + PCI_VPD_DATA, 0);
	max_poll = EEPROM_MAX_POLL;
	do {
		udelay(EEPROM_DELAY);
		t4_seeprom_read(adapter, EEPROM_STAT_ADDR, &stats_reg);
	} while ((stats_reg & 0x1) && --max_poll);
	if (!max_poll)
		return -ETIMEDOUT;

	/* Return success! */
	return 0;
}

/**
 *	t4_eeprom_ptov - translate a physical EEPROM address to virtual
 *	@phys_addr: the physical EEPROM address
 *	@fn: the PCI function number
 *	@sz: size of function-specific area
 *
 *	Translate a physical EEPROM address to virtual.  The first 1K is
 *	accessed through virtual addresses starting at 31K, the rest is
 *	accessed through virtual addresses starting at 0.
 *
 *	The mapping is as follows:
 *	[0..1K) -> [31K..32K)
 *	[1K..1K+A) -> [ES-A..ES)
 *	[1K+A..ES) -> [0..ES-A-1K)
 *
 *	where A = @fn * @sz, and ES = EEPROM size.
 */
int t4_eeprom_ptov(unsigned int phys_addr, unsigned int fn, unsigned int sz)
{
	fn *= sz;
	if (phys_addr < 1024)
		return phys_addr + (31 << 10);
	if (phys_addr < 1024 + fn)
		return EEPROMSIZE - fn + phys_addr - 1024;
	if (phys_addr < EEPROMSIZE)
		return phys_addr - 1024 - fn;
	return -EINVAL;
}

/**
 *	t4_seeprom_wp - enable/disable EEPROM write protection
 *	@adapter: the adapter
 *	@enable: whether to enable or disable write protection
 *
 *	Enables or disables write protection on the serial EEPROM.
 */
int t4_seeprom_wp(struct adapter *adapter, int enable)
{
	return t4_os_pci_write_seeprom(adapter, EEPROM_STAT_ADDR, enable ? 0xc : 0);
}

/**
 *	get_vpd_keyword_val - Locates an information field keyword in the VPD
 *	@v: Pointer to buffered vpd data structure
 *	@kw: The keyword to search for
 *
 *	Returns the value of the information field keyword or
 *	-ENOENT otherwise.
 */
int get_vpd_keyword_val(const struct t4_vpd_hdr *v, const char *kw)
{
	int i;
	unsigned int offset , len;
	const u8 *buf = (const u8 *)v;
	const u8 *vpdr_len = &v->vpdr_len[0];
	offset = sizeof(struct t4_vpd_hdr);
	len =  (u16)vpdr_len[0] + ((u16)vpdr_len[1] << 8);

	if (len + sizeof(struct t4_vpd_hdr) > VPD_LEN) {
		return -ENOENT;
	}

	for (i = offset; i + VPD_INFO_FLD_HDR_SIZE <= offset + len;) {
		if(memcmp(buf + i , kw , 2) == 0){
			i += VPD_INFO_FLD_HDR_SIZE;
			return i;
		}

		i += VPD_INFO_FLD_HDR_SIZE + buf[i+2];
	}

	return -ENOENT;
}

/*
 * str_strip
 * Removes trailing whitespaces from string "s"
 * Based on strstrip() implementation in string.c
 */
static void str_strip(char *s)
{
	size_t size;
	char *end;

	size = strlen(s);
	if (!size)
		return;

	end = s + size - 1;
	while (end >= s && isspace(*end))
		end--;
	*(end + 1) = '\0';
}

/**
 *	t4_get_raw_vpd_params - read VPD parameters from VPD EEPROM
 *	@adapter: adapter to read
 *	@p: where to store the parameters
 *
 *	Reads card parameters stored in VPD EEPROM.
 */
int t4_get_raw_vpd_params(struct adapter *adapter, struct vpd_params *p)
{
	int i, ret = 0, addr;
	int ec, sn, pn, na;
	u8 *vpd, csum;
	const struct t4_vpd_hdr *v;

	vpd = (u8 *)t4_os_alloc(sizeof(u8) * VPD_LEN);
	if (!vpd)
		return -ENOMEM;

	/* We have two VPD data structures stored in the adapter VPD area.
	 * By default, Linux calculates the size of the VPD area by traversing
	 * the first VPD area at offset 0x0, so we need to tell the OS what
	 * our real VPD size is.
	 */
	ret = t4_os_pci_set_vpd_size(adapter, VPD_SIZE);
	if (ret < 0)
		goto out;

	/* Card information normally starts at VPD_BASE but early cards had
	 * it at 0.
	 */
	ret = t4_os_pci_read_seeprom(adapter, VPD_BASE, (u32 *)(vpd));
	if (ret)
		goto out;

	/* The VPD shall have a unique identifier specified by the PCI SIG.
	 * For chelsio adapters, the identifier is 0x82. The first byte of a VPD
	 * shall be CHELSIO_VPD_UNIQUE_ID (0x82). The VPD programming software
	 * is expected to automatically put this entry at the
	 * beginning of the VPD.
	 */
	addr = *vpd == CHELSIO_VPD_UNIQUE_ID ? VPD_BASE : VPD_BASE_OLD;

	for (i = 0; i < VPD_LEN; i += 4) {
		ret = t4_os_pci_read_seeprom(adapter, addr+i, (u32 *)(vpd+i));
		if (ret)
			goto out;
	}
 	v = (const struct t4_vpd_hdr *)vpd;

#define FIND_VPD_KW(var,name) do { \
	var = get_vpd_keyword_val(v , name); \
	if (var < 0) { \
		CH_ERR(adapter, "missing VPD keyword " name "\n"); \
		ret = -EINVAL; \
		goto out;      \
	} \
} while (0)

	FIND_VPD_KW(i, "RV");
	for (csum = 0; i >= 0; i--)
		csum += vpd[i];

	if (csum) {
		CH_ERR(adapter,
			"corrupted VPD EEPROM, actual csum %u\n", csum);
		ret = -EINVAL;
		goto out;
	}

	FIND_VPD_KW(ec, "EC");
	FIND_VPD_KW(sn, "SN");
	FIND_VPD_KW(pn, "PN");
	FIND_VPD_KW(na, "NA");
#undef FIND_VPD_KW

	memcpy(p->id, v->id_data, ID_LEN);
	str_strip((char *)p->id);
	memcpy(p->ec, vpd + ec, EC_LEN);
	str_strip((char *)p->ec);
	i = vpd[sn - VPD_INFO_FLD_HDR_SIZE + 2];
	memcpy(p->sn, vpd + sn, min(i, SERNUM_LEN));
	str_strip((char *)p->sn);
	i = vpd[pn - VPD_INFO_FLD_HDR_SIZE + 2];
	memcpy(p->pn, vpd + pn, min(i, PN_LEN));
	str_strip((char *)p->pn);
	i = vpd[na - VPD_INFO_FLD_HDR_SIZE + 2];
	memcpy(p->na, vpd + na, min(i, MACADDR_LEN));
	str_strip((char *)p->na);

out:
	kmem_free(vpd, sizeof(u8) * VPD_LEN);
	return ret < 0 ? ret : 0;
}

/**
 *	t4_get_vpd_params - read VPD parameters & retrieve Core Clock
 *	@adapter: adapter to read
 *	@p: where to store the parameters
 *
 *	Reads card parameters stored in VPD EEPROM and retrieves the Core
 *	Clock.  This can only be called after a connection to the firmware
 *	is established.
 */
int t4_get_vpd_params(struct adapter *adapter, struct vpd_params *p)
{
	u32 cclk_param, cclk_val;
	int ret;

	/*
	 * Grab the raw VPD parameters.
	 */
	ret = t4_get_raw_vpd_params(adapter, p);
	if (ret)
		return ret;

	/*
	 * Ask firmware for the Core Clock since it knows how to translate the
	 * Reference Clock ('V2') VPD field into a Core Clock value ...
	 */
	cclk_param = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
		      V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CCLK));
	ret = t4_query_params(adapter, adapter->mbox, adapter->pf, 0,
			      1, &cclk_param, &cclk_val);

	if (ret)
		return ret;
	p->cclk = cclk_val;

	return 0;
}

/**
 *	t4_get_pfres - retrieve VF resource limits
 *	@adapter: the adapter
 *
 *	Retrieves configured resource limits and capabilities for a physical
 *	function.  The results are stored in @adapter->pfres.
 */
int t4_get_pfres(struct adapter *adapter)
{
	struct pf_resources *pfres = &adapter->params.pfres;
	struct fw_pfvf_cmd cmd, rpl;
	int v;
	u32 word;

	/*
	 * Execute PFVF Read command to get VF resource limits; bail out early
	 * with error on command failure.
	 */
	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_PFVF_CMD) |
				    F_FW_CMD_REQUEST |
				    F_FW_CMD_READ |
				    V_FW_PFVF_CMD_PFN(adapter->pf) |
				    V_FW_PFVF_CMD_VFN(0));
	cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
	v = t4_wr_mbox(adapter, adapter->mbox, &cmd, sizeof(cmd), &rpl);
	if (v != FW_SUCCESS)
		return v;

	/*
	 * Extract PF resource limits and return success.
	 */
	word = be32_to_cpu(rpl.niqflint_niq);
	pfres->niqflint = G_FW_PFVF_CMD_NIQFLINT(word);

	word = be32_to_cpu(rpl.type_to_neq);
	pfres->neq = G_FW_PFVF_CMD_NEQ(word);
	pfres->pmask = G_FW_PFVF_CMD_PMASK(word);

	word = be32_to_cpu(rpl.tc_to_nexactf);
	pfres->tc = G_FW_PFVF_CMD_TC(word);
	pfres->nvi = G_FW_PFVF_CMD_NVI(word);
	pfres->nexactf = G_FW_PFVF_CMD_NEXACTF(word);

	word = be32_to_cpu(rpl.r_caps_to_nethctrl);
	pfres->r_caps = G_FW_PFVF_CMD_R_CAPS(word);
	pfres->wx_caps = G_FW_PFVF_CMD_WX_CAPS(word);
	pfres->nethctrl = G_FW_PFVF_CMD_NETHCTRL(word);

	return 0;
}

/* serial flash and firmware constants and flash config file constants */
enum {
	SF_ATTEMPTS = 10,	/* max retries for SF operations */

	/* flash command opcodes */
	SF_PROG_PAGE    = 2,	/* program page */
	SF_WR_DISABLE   = 4,	/* disable writes */
	SF_RD_STATUS    = 5,	/* read status register */
	SF_WR_ENABLE    = 6,	/* enable writes */
	SF_RD_DATA_FAST = 0xb,	/* read flash */
	SF_RD_ID	= 0x9f,	/* read ID */
	SF_ERASE_SECTOR = 0xd8,	/* erase sector */
};

/**
 *	sf1_read - read data from the serial flash
 *	@adapter: the adapter
 *	@byte_cnt: number of bytes to read
 *	@cont: whether another operation will be chained
 *	@lock: whether to lock SF for PL access only
 *	@valp: where to store the read data
 *
 *	Reads up to 4 bytes of data from the serial flash.  The location of
 *	the read needs to be specified prior to calling this by issuing the
 *	appropriate commands to the serial flash.
 */
static int sf1_read(struct adapter *adapter, unsigned int byte_cnt, int cont,
		    int lock, u32 *valp)
{
	int ret;

	if (!byte_cnt || byte_cnt > 4)
		return -EINVAL;
	if (t4_read_reg(adapter, A_SF_OP) & F_BUSY)
		return -EBUSY;
	t4_write_reg(adapter, A_SF_OP,
		     V_SF_LOCK(lock) | V_CONT(cont) | V_BYTECNT(byte_cnt - 1));
	ret = t4_wait_op_done(adapter, A_SF_OP, F_BUSY, 0, SF_ATTEMPTS, 5);
	if (!ret)
		*valp = t4_read_reg(adapter, A_SF_DATA);
	return ret;
}

/**
 *	sf1_write - write data to the serial flash
 *	@adapter: the adapter
 *	@byte_cnt: number of bytes to write
 *	@cont: whether another operation will be chained
 *	@lock: whether to lock SF for PL access only
 *	@val: value to write
 *
 *	Writes up to 4 bytes of data to the serial flash.  The location of
 *	the write needs to be specified prior to calling this by issuing the
 *	appropriate commands to the serial flash.
 */
static int sf1_write(struct adapter *adapter, unsigned int byte_cnt, int cont,
		     int lock, u32 val)
{
	if (!byte_cnt || byte_cnt > 4)
		return -EINVAL;
	if (t4_read_reg(adapter, A_SF_OP) & F_BUSY)
		return -EBUSY;
	t4_write_reg(adapter, A_SF_DATA, val);
	t4_write_reg(adapter, A_SF_OP, V_SF_LOCK(lock) |
		     V_CONT(cont) | V_BYTECNT(byte_cnt - 1) | V_OP(1));
	return t4_wait_op_done(adapter, A_SF_OP, F_BUSY, 0, SF_ATTEMPTS, 5);
}

/**
 *	flash_wait_op - wait for a flash operation to complete
 *	@adapter: the adapter
 *	@attempts: max number of polls of the status register
 *	@delay: delay between polls in ms
 *
 *	Wait for a flash operation to complete by polling the status register.
 */
static int flash_wait_op(struct adapter *adapter, int attempts, int ch_delay)
{
	int ret;
	u32 status;

	while (1) {
		if ((ret = sf1_write(adapter, 1, 1, 1, SF_RD_STATUS)) != 0 ||
		    (ret = sf1_read(adapter, 1, 0, 1, &status)) != 0)
			return ret;
		if (!(status & 1))
			return 0;
		if (--attempts == 0)
			return -EAGAIN;
		if (ch_delay) {
#ifdef CONFIG_CUDBG
			if (adapter->flags & K_CRASH)
				mdelay(ch_delay);
			else
#endif
				msleep(ch_delay);
		}
	}
}

/**
 *	t4_read_flash - read words from serial flash
 *	@adapter: the adapter
 *	@addr: the start address for the read
 *	@nwords: how many 32-bit words to read
 *	@data: where to store the read data
 *	@byte_oriented: whether to store data as bytes or as words
 *
 *	Read the specified number of 32-bit words from the serial flash.
 *	If @byte_oriented is set the read data is stored as a byte array
 *	(i.e., big-endian), otherwise as 32-bit words in the platform's
 *	natural endianness.
 */
int t4_read_flash(struct adapter *adapter, unsigned int addr,
		  unsigned int nwords, u32 *data, int byte_oriented)
{
	int ret;

	if (addr + nwords * sizeof(u32) > adapter->params.sf_size || (addr & 3))
		return -EINVAL;

	addr = swab32(addr) | SF_RD_DATA_FAST;

	if ((ret = sf1_write(adapter, 4, 1, 0, addr)) != 0 ||
	    (ret = sf1_read(adapter, 1, 1, 0, data)) != 0)
		return ret;

	for ( ; nwords; nwords--, data++) {
		ret = sf1_read(adapter, 4, nwords > 1, nwords == 1, data);
		if (nwords == 1)
			t4_write_reg(adapter, A_SF_OP, 0);    /* unlock SF */
		if (ret)
			return ret;
		if (byte_oriented)
			*data = (__force __u32)(cpu_to_be32(*data));
	}
	return 0;
}

/**
 *	t4_write_flash - write up to a page of data to the serial flash
 *	@adapter: the adapter
 *	@addr: the start address to write
 *	@n: length of data to write in bytes
 *	@data: the data to write
 *	@byte_oriented: whether to store data as bytes or as words
 *
 *	Writes up to a page of data (256 bytes) to the serial flash starting
 *	at the given address.  All the data must be written to the same page.
 *	If @byte_oriented is set the write data is stored as byte stream
 *	(i.e. matches what on disk), otherwise in big-endian.
 */
int t4_write_flash(struct adapter *adapter, unsigned int addr,
			  unsigned int n, const u8 *data, int byte_oriented)
{
	int ret;
	u32 buf[64];
	unsigned int i, c, left, val, offset = addr & 0xff;

	if (addr >= adapter->params.sf_size || offset + n > SF_PAGE_SIZE)
		return -EINVAL;

	val = swab32(addr) | SF_PROG_PAGE;

	if ((ret = sf1_write(adapter, 1, 0, 1, SF_WR_ENABLE)) != 0 ||
	    (ret = sf1_write(adapter, 4, 1, 1, val)) != 0)
		goto unlock;

	for (left = n; left; left -= c) {
		c = min(left, 4U);
		for (val = 0, i = 0; i < c; ++i)
			val = (val << 8) + *data++;

		if (!byte_oriented)
			val = cpu_to_be32(val);

		ret = sf1_write(adapter, c, c != left, 1, val);
		if (ret)
			goto unlock;
	}
	ret = flash_wait_op(adapter, 8, 1);
	if (ret)
		goto unlock;

	t4_write_reg(adapter, A_SF_OP, 0);    /* unlock SF */

	/* Read the page to verify the write succeeded */
	ret = t4_read_flash(adapter, addr & ~0xff, ARRAY_SIZE(buf), buf,
			    byte_oriented);
	if (ret)
		return ret;

	if (memcmp(data - n, (u8 *)buf + offset, n)) {
		CH_ERR(adapter,
			"failed to correctly write the flash page at %#x\n",
			addr);
		return -EIO;
	}
	return 0;

unlock:
	t4_write_reg(adapter, A_SF_OP, 0);    /* unlock SF */
	return ret;
}

/**
 *	t4_get_fw_version - read the firmware version
 *	@adapter: the adapter
 *	@vers: where to place the version
 *
 *	Reads the FW version from flash.
 */
int t4_get_fw_version(struct adapter *adapter, u32 *vers)
{
	return t4_read_flash(adapter, FLASH_FW_START +
			     offsetof(struct fw_hdr, fw_ver), 1,
			     vers, 0);
}

/**
 *	t4_get_bs_version - read the firmware bootstrap version
 *	@adapter: the adapter
 *	@vers: where to place the version
 *
 *	Reads the FW Bootstrap version from flash.
 */
int t4_get_bs_version(struct adapter *adapter, u32 *vers)
{
	return t4_read_flash(adapter, FLASH_FWBOOTSTRAP_START +
			     offsetof(struct fw_hdr, fw_ver), 1,
			     vers, 0);
}

/**
 *	t4_get_tp_version - read the TP microcode version
 *	@adapter: the adapter
 *	@vers: where to place the version
 *
 *	Reads the TP microcode version from flash.
 */
int t4_get_tp_version(struct adapter *adapter, u32 *vers)
{
	return t4_read_flash(adapter, FLASH_FW_START +
			     offsetof(struct fw_hdr, tp_microcode_ver),
			     1, vers, 0);
}

/**
 *	t4_get_exprom_version - return the Expansion ROM version (if any)
 *	@adapter: the adapter
 *	@vers: where to place the version
 *
 *	Reads the Expansion ROM header from FLASH and returns the version
 *	number (if present) through the @vers return value pointer.  We return
 *	this in the Firmware Version Format since it's convenient.  Return
 *	0 on success, -ENOENT if no Expansion ROM is present.
 */
int t4_get_exprom_version(struct adapter *adapter, u32 *vers)
{
	struct exprom_header {
		unsigned char hdr_arr[16];	/* must start with 0x55aa */
		unsigned char hdr_ver[4];	/* Expansion ROM version */
	} *hdr;
	u32 exprom_header_buf[DIV_ROUND_UP(sizeof(struct exprom_header),
					   sizeof(u32))];
	int ret;

	ret = t4_read_flash(adapter, FLASH_EXP_ROM_START,
			    ARRAY_SIZE(exprom_header_buf), exprom_header_buf,
			    0);
	if (ret)
		return ret;

	hdr = (struct exprom_header *)exprom_header_buf;
	if (hdr->hdr_arr[0] != 0x55 || hdr->hdr_arr[1] != 0xaa)
		return -ENOENT;

	*vers = (V_FW_HDR_FW_VER_MAJOR(hdr->hdr_ver[0]) |
		 V_FW_HDR_FW_VER_MINOR(hdr->hdr_ver[1]) |
		 V_FW_HDR_FW_VER_MICRO(hdr->hdr_ver[2]) |
		 V_FW_HDR_FW_VER_BUILD(hdr->hdr_ver[3]));
	return 0;
}

/**
 *	t4_get_scfg_version - return the Serial Configuration version
 *	@adapter: the adapter
 *	@vers: where to place the version
 *
 *	Reads the Serial Configuration Version via the Firmware interface
 *	(thus this can only be called once we're ready to issue Firmware
 *	commands).  The format of the Serial Configuration version is
 *	adapter specific.  Returns 0 on success, an error on failure.
 *
 *	Note that early versions of the Firmware didn't include the ability
 *	to retrieve the Serial Configuration version, so we zero-out the
 *	return-value parameter in that case to avoid leaving it with
 *	garbage in it.
 *
 *	Also note that the Firmware will return its cached copy of the Serial
 *	Initialization Revision ID, not the actual Revision ID as written in
 *	the Serial EEPROM.  This is only an issue if a new VPD has been written
 *	and the Firmware/Chip haven't yet gone through a RESET sequence.  So
 *	it's best to defer calling this routine till after a FW_RESET_CMD has
 *	been issued if the Host Driver will be performing a full adapter
 *	initialization.
 */
int t4_get_scfg_version(struct adapter *adapter, u32 *vers)
{
	u32 scfgrev_param;
	int ret;

	scfgrev_param = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
			 V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_SCFGREV));
	ret = t4_query_params(adapter, adapter->mbox, adapter->pf, 0,
			      1, &scfgrev_param, vers);
	if (ret)
		*vers = 0;
	return ret;
}

/**
 *	t4_get_vpd_version - return the VPD version
 *	@adapter: the adapter
 *	@vers: where to place the version
 *
 *	Reads the VPD via the Firmware interface (thus this can only be called
 *	once we're ready to issue Firmware commands).  The format of the
 *	VPD version is adapter specific.  Returns 0 on success, an error on
 *	failure.
 *
 *	Note that early versions of the Firmware didn't include the ability
 *	to retrieve the VPD version, so we zero-out the return-value parameter
 *	in that case to avoid leaving it with garbage in it.
 *
 *	Also note that the Firmware will return its cached copy of the VPD
 *	Revision ID, not the actual Revision ID as written in the Serial
 *	EEPROM.  This is only an issue if a new VPD has been written and the
 *	Firmware/Chip haven't yet gone through a RESET sequence.  So it's best
 *	to defer calling this routine till after a FW_RESET_CMD has been issued
 *	if the Host Driver will be performing a full adapter initialization.
 */
int t4_get_vpd_version(struct adapter *adapter, u32 *vers)
{
	u32 vpdrev_param;
	int ret;

	vpdrev_param = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
			V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_VPDREV));
	ret = t4_query_params(adapter, adapter->mbox, adapter->pf, 0,
			      1, &vpdrev_param, vers);
	if (ret)
		*vers = 0;
	return ret;
}

/**
 *	t4_get_version_info - extract various chip/firmware version information
 *	@adapter: the adapter
 *
 *	Reads various chip/firmware version numbers and stores them into the
 *	adapter Adapter Parameters structure.  If any of the efforts fails
 *	the first failure will be returned, but all of the version numbers
 *	will be read.
 */
int t4_get_version_info(struct adapter *adapter)
{
	int ret = 0;

	#define FIRST_RET(__getvinfo) \
	do { \
		int __ret = __getvinfo; \
		if (__ret && !ret) \
			ret = __ret; \
	} while (0)

	FIRST_RET(t4_get_fw_version(adapter, &adapter->params.fw_vers));
	FIRST_RET(t4_get_bs_version(adapter, &adapter->params.bs_vers));
	FIRST_RET(t4_get_tp_version(adapter, &adapter->params.tp_vers));
	FIRST_RET(t4_get_exprom_version(adapter, &adapter->params.er_vers));
	FIRST_RET(t4_get_scfg_version(adapter, &adapter->params.scfg_vers));
	FIRST_RET(t4_get_vpd_version(adapter, &adapter->params.vpd_vers));

	#undef FIRST_RET

	return ret;
}

/**
 *	t4_dump_version_info - dump all of the adapter configuration IDs
 *	@adapter: the adapter
 *
 *	Dumps all of the various bits of adapter configuration version/revision
 *	IDs information.  This is typically called at some point after
 *	t4_get_version_info() has been called.
 */
void t4_dump_version_info(struct adapter *adapter)
{
	/*
	 * Device information.
	 */
	CH_INFO(adapter, "Chelsio %s rev %d\n",
		adapter->params.vpd.id,
		CHELSIO_CHIP_RELEASE(adapter->params.chip));
	CH_INFO(adapter, "S/N: %s, P/N: %s\n",
		adapter->params.vpd.sn,
		adapter->params.vpd.pn);

	/*
	 * Firmware Version.
	 */
	if (!adapter->params.fw_vers)
		CH_WARN(adapter, "No firmware loaded\n");
	else
		CH_INFO(adapter, "Firmware version: %u.%u.%u.%u\n",
			G_FW_HDR_FW_VER_MAJOR(adapter->params.fw_vers),
			G_FW_HDR_FW_VER_MINOR(adapter->params.fw_vers),
			G_FW_HDR_FW_VER_MICRO(adapter->params.fw_vers),
			G_FW_HDR_FW_VER_BUILD(adapter->params.fw_vers));

	/*
	 * Bootstrap Firmware Version.  (Some adapters don't have Bootstrap
	 * Firmware, so dev_info() is more appropriate here.)
	 */
	if (!adapter->params.bs_vers)
		CH_INFO(adapter, "No bootstrap loaded\n");
	else
		CH_INFO(adapter, "Bootstrap version: %u.%u.%u.%u\n",
			G_FW_HDR_FW_VER_MAJOR(adapter->params.bs_vers),
			G_FW_HDR_FW_VER_MINOR(adapter->params.bs_vers),
			G_FW_HDR_FW_VER_MICRO(adapter->params.bs_vers),
			G_FW_HDR_FW_VER_BUILD(adapter->params.bs_vers));

	/*
	 * TP Microcode Version.
	 */
	if (!adapter->params.tp_vers)
		CH_WARN(adapter, "No TP Microcode loaded\n");
	else
		CH_INFO(adapter, "TP Microcode version: %u.%u.%u.%u\n",
			G_FW_HDR_FW_VER_MAJOR(adapter->params.tp_vers),
			G_FW_HDR_FW_VER_MINOR(adapter->params.tp_vers),
			G_FW_HDR_FW_VER_MICRO(adapter->params.tp_vers),
			G_FW_HDR_FW_VER_BUILD(adapter->params.tp_vers));

	/*
	 * Expansion ROM version.
	 */
	if (!adapter->params.er_vers)
		CH_INFO(adapter, "No Expansion ROM loaded\n");
	else
		CH_INFO(adapter, "Expansion ROM version: %u.%u.%u.%u\n",
			G_FW_HDR_FW_VER_MAJOR(adapter->params.er_vers),
			G_FW_HDR_FW_VER_MINOR(adapter->params.er_vers),
			G_FW_HDR_FW_VER_MICRO(adapter->params.er_vers),
			G_FW_HDR_FW_VER_BUILD(adapter->params.er_vers));


	/*
	 * Serial Configuration version.
	 */
	CH_INFO(adapter, "Serial Configuration version: %x\n",
		adapter->params.scfg_vers);

	/*
	 * VPD  version.
	 */
	CH_INFO(adapter, "VPD version: %x\n",
		adapter->params.vpd_vers);
}

/**
 *	t4_check_fw_version - check if the FW is supported with this driver
 *	@adap: the adapter
 *
 *	Checks if an adapter's FW is compatible with the driver.  Returns 0
 *	if there's exact match, a negative error if the version could not be
 *	read or there's a major version mismatch
 */
int t4_check_fw_version(struct adapter *adap)
{
	int ret, major, minor, micro;
	int exp_major, exp_minor, exp_micro;
	unsigned int chip_version = CHELSIO_CHIP_VERSION(adap->params.chip);

	ret = t4_get_fw_version(adap, &adap->params.fw_vers);
	if (ret)
		return ret;

	major = G_FW_HDR_FW_VER_MAJOR(adap->params.fw_vers);
	minor = G_FW_HDR_FW_VER_MINOR(adap->params.fw_vers);
	micro = G_FW_HDR_FW_VER_MICRO(adap->params.fw_vers);

	switch (chip_version) {
	case CHELSIO_T4:
		exp_major = T4FW_MIN_VERSION_MAJOR;
		exp_minor = T4FW_MIN_VERSION_MINOR;
		exp_micro = T4FW_MIN_VERSION_MICRO;
		break;
	case CHELSIO_T5:
		exp_major = T5FW_MIN_VERSION_MAJOR;
		exp_minor = T5FW_MIN_VERSION_MINOR;
		exp_micro = T5FW_MIN_VERSION_MICRO;
		break;
	case CHELSIO_T6:
		exp_major = T6FW_MIN_VERSION_MAJOR;
		exp_minor = T6FW_MIN_VERSION_MINOR;
		exp_micro = T6FW_MIN_VERSION_MICRO;
		break;
	default:
		CH_ERR(adap, "Unsupported chip type, %x\n",
			adap->params.chip);
		return -EINVAL;
	}

	if (major < exp_major || (major == exp_major && minor < exp_minor) ||
	    (major == exp_major && minor == exp_minor && micro < exp_micro)) {
		CH_ERR(adap, "Card has firmware version %u.%u.%u, minimum "
			"supported firmware is %u.%u.%u.\n", major, minor,
			micro, exp_major, exp_minor, exp_micro);
		return -EFAULT;
	}
	return 0;
}

/* Is the given firmware API compatible with the one the driver was compiled
 * with?
 */
static int fw_compatible(const struct fw_hdr *hdr1, const struct fw_hdr *hdr2)
{

	/* short circuit if it's the exact same firmware version */
	if (hdr1->chip == hdr2->chip && hdr1->fw_ver == hdr2->fw_ver)
		return 1;

	/*
	 * XXX: Is this too conservative?  Perhaps I should limit this to the
	 * features that are supported in the driver.
	 */
#define SAME_INTF(x) (hdr1->intfver_##x == hdr2->intfver_##x)
	if (hdr1->chip == hdr2->chip && SAME_INTF(nic) && SAME_INTF(vnic) &&
	    SAME_INTF(ofld) && SAME_INTF(ri) && SAME_INTF(iscsipdu) &&
	    SAME_INTF(iscsi) && SAME_INTF(fcoepdu) && SAME_INTF(fcoe))
		return 1;
#undef SAME_INTF

	return 0;
}

/* The firmware in the filesystem is usable, but should it be installed?
 * This routine explains itself in detail if it indicates the filesystem
 * firmware should be installed.
 */
static int should_install_fs_fw(struct adapter *adap, int card_fw_usable,
				int k, int c, int t4_fw_install)
{
	const char *reason;

	if (!card_fw_usable) {
		reason = "incompatible or unusable";
		goto install;
	}

	if (k > c) {
		reason = "older than the version bundled with this driver";
		goto install;
	}

	if (t4_fw_install == 2 && k != c) {
		reason = "different than the version bundled with this driver";
		goto install;
	}

	return 0;

install:
	if (t4_fw_install == 0) {
		CH_ERR(adap, "firmware on card (%u.%u.%u.%u) is %s, "
		       "but the driver is prohibited from installing a "
		       "different firmware on the card.\n",
		       G_FW_HDR_FW_VER_MAJOR(c), G_FW_HDR_FW_VER_MINOR(c),
		       G_FW_HDR_FW_VER_MICRO(c), G_FW_HDR_FW_VER_BUILD(c),
		       reason);

		return (0);
	}

	CH_ERR(adap, "firmware on card (%u.%u.%u.%u) is %s, "
	       "installing firmware %u.%u.%u.%u on card.\n",
	       G_FW_HDR_FW_VER_MAJOR(c), G_FW_HDR_FW_VER_MINOR(c),
	       G_FW_HDR_FW_VER_MICRO(c), G_FW_HDR_FW_VER_BUILD(c), reason,
	       G_FW_HDR_FW_VER_MAJOR(k), G_FW_HDR_FW_VER_MINOR(k),
	       G_FW_HDR_FW_VER_MICRO(k), G_FW_HDR_FW_VER_BUILD(k));

	return 1;
}

int t4_prep_fw(struct adapter *adap, struct fw_info *fw_info,
	       const u8 *fw_data, unsigned int fw_size,
	       struct fw_hdr *card_fw, const int t4_fw_install,
	       enum dev_state state, int *reset)
{
	int ret, card_fw_usable, fs_fw_usable;
	const struct fw_hdr *fs_fw;
	const struct fw_hdr *drv_fw;

	drv_fw = &fw_info->fw_hdr;

	/* Read the header of the firmware on the card */
	ret = -t4_read_flash(adap, FLASH_FW_START,
			    sizeof(*card_fw) / sizeof(uint32_t),
			    (uint32_t *)card_fw, 1);
	if (ret == 0) {
		card_fw_usable = fw_compatible(drv_fw, (const void *)card_fw);
	} else {
		CH_ERR(adap,
			"Unable to read card's firmware header: %d\n", ret);
		card_fw_usable = 0;
	}

	if (fw_data != NULL) {
		fs_fw = (const void *)fw_data;
		fs_fw_usable = fw_compatible(drv_fw, fs_fw);
	} else {
		fs_fw = NULL;
		fs_fw_usable = 0;
	}

	if (card_fw_usable && card_fw->fw_ver == drv_fw->fw_ver &&
	    (!fs_fw_usable || fs_fw->fw_ver == drv_fw->fw_ver)) {
		/* Common case: the firmware on the card is an exact match and
		 * the filesystem one is an exact match too, or the filesystem
		 * one is absent/incompatible.  Note that t4_fw_install = 2
		 * is ignored here -- use cxgbtool loadfw if you want to
		 * reinstall the same firmware as the one on the card.
		 */
	} else if (fs_fw_usable && state == DEV_STATE_UNINIT &&
		   should_install_fs_fw(adap, card_fw_usable,
					be32_to_cpu(fs_fw->fw_ver),
					be32_to_cpu(card_fw->fw_ver),
					 t4_fw_install)) {

		ret = -t4_fw_upgrade(adap, adap->mbox, fw_data,
				     fw_size, 0);
		if (ret != 0) {
			CH_ERR(adap,
				"failed to install firmware: %d\n", ret);
			goto bye;
		}

		/* Installed successfully, update cached information */
		memcpy(card_fw, fs_fw, sizeof(*card_fw));
		(void)t4_init_devlog_params(adap, 1);
		card_fw_usable = 1;
		*reset = 0;	/* already reset as part of load_fw */
	}

	if (!card_fw_usable) {
		uint32_t d, c, k;

		d = be32_to_cpu(drv_fw->fw_ver);
		c = be32_to_cpu(card_fw->fw_ver);
		k = fs_fw ? be32_to_cpu(fs_fw->fw_ver) : 0;

		CH_ERR(adap, "Cannot find a usable firmware: "
			"fw_install %d, chip state %d, "
			"driver compiled with %d.%d.%d.%d, "
			"card has %d.%d.%d.%d, filesystem has %d.%d.%d.%d\n",
			t4_fw_install, state,
			G_FW_HDR_FW_VER_MAJOR(d), G_FW_HDR_FW_VER_MINOR(d),
			G_FW_HDR_FW_VER_MICRO(d), G_FW_HDR_FW_VER_BUILD(d),
			G_FW_HDR_FW_VER_MAJOR(c), G_FW_HDR_FW_VER_MINOR(c),
			G_FW_HDR_FW_VER_MICRO(c), G_FW_HDR_FW_VER_BUILD(c),
			G_FW_HDR_FW_VER_MAJOR(k), G_FW_HDR_FW_VER_MINOR(k),
			G_FW_HDR_FW_VER_MICRO(k), G_FW_HDR_FW_VER_BUILD(k));
		ret = EINVAL;
		goto bye;
	}

	/* We're using whatever's on the card and it's known to be good. */
	adap->params.fw_vers = be32_to_cpu(card_fw->fw_ver);
	adap->params.tp_vers = be32_to_cpu(card_fw->tp_microcode_ver);

bye:
	return ret;

}

/**
 *	t4_flash_erase_sectors - erase a range of flash sectors
 *	@adapter: the adapter
 *	@start: the first sector to erase
 *	@end: the last sector to erase
 *
 *	Erases the sectors in the given inclusive range.
 */
int t4_flash_erase_sectors(struct adapter *adapter, int start, int end)
{
	int ret = 0;

	if (end >= adapter->params.sf_nsec)
		return -EINVAL;

	while (start <= end) {
		if ((ret = sf1_write(adapter, 1, 0, 1, SF_WR_ENABLE)) != 0 ||
		    (ret = sf1_write(adapter, 4, 0, 1,
				     SF_ERASE_SECTOR | (start << 8))) != 0 ||
		    (ret = flash_wait_op(adapter, 14, 500)) != 0) {
			CH_ERR(adapter,
				"erase of flash sector %d failed, error %d\n",
				start, ret);
			break;
		}
		start++;
	}
	t4_write_reg(adapter, A_SF_OP, 0);    /* unlock SF */
	return ret;
}

/**
 *	t4_flash_cfg_addr - return the address of the flash configuration file
 *	@adapter: the adapter
 *
 *	Return the address within the flash where the Firmware Configuration
 *	File is stored, or an error if the device FLASH is too small to contain
 *	a Firmware Configuration File.
 */
int t4_flash_cfg_addr(struct adapter *adapter)
{
	/*
	 * If the device FLASH isn't large enough to hold a Firmware
	 * Configuration File, return an error.
	 */
	if (adapter->params.sf_size < FLASH_CFG_START + FLASH_CFG_MAX_SIZE)
		return -ENOSPC;

	return FLASH_CFG_START;
}

/* Return TRUE if the specified firmware matches the adapter.  I.e. T4
 * firmware for T4 adapters, T5 firmware for T5 adapters, etc.  We go ahead
 * and emit an error message for mismatched firmware to save our caller the
 * effort ...
 */
static int t4_fw_matches_chip(const struct adapter *adap,
			      const struct fw_hdr *hdr)
{
	/*
	 * The expression below will return FALSE for any unsupported adapter
	 * which will keep us "honest" in the future ...
	 */
	if ((is_t4(adap->params.chip) && hdr->chip == FW_HDR_CHIP_T4) ||
	    (is_t5(adap->params.chip) && hdr->chip == FW_HDR_CHIP_T5) ||
	    (is_t6(adap->params.chip) && hdr->chip == FW_HDR_CHIP_T6))
		return 1;

	CH_ERR(adap,
		"FW image (%d) is not suitable for this adapter (%d)\n",
		hdr->chip, CHELSIO_CHIP_VERSION(adap->params.chip));
	return 0;
}

/**
 *	t4_load_fw - download firmware
 *	@adap: the adapter
 *	@fw_data: the firmware image to write
 *	@size: image size
 *	@bootstrap: indicates if the binary is a bootstrap fw
 *
 *	Write the supplied firmware image to the card's serial flash.
 */
int t4_load_fw(struct adapter *adap, const u8 *fw_data, unsigned int size,
	       unsigned int bootstrap)
{
	u32 csum;
	int ret, addr;
	unsigned int i;
	u8 first_page[SF_PAGE_SIZE];
	const __be32 *p = (const __be32 *)fw_data;
	const struct fw_hdr *hdr = (const struct fw_hdr *)fw_data;
	unsigned int sf_sec_size = adap->params.sf_size / adap->params.sf_nsec;
	unsigned int fw_start_sec;
	unsigned int fw_start;
	unsigned int fw_size;

	if (bootstrap) {
		fw_start_sec = FLASH_FWBOOTSTRAP_START_SEC;
		fw_start = FLASH_FWBOOTSTRAP_START;
		fw_size = FLASH_FWBOOTSTRAP_MAX_SIZE;
	} else {
		fw_start_sec = FLASH_FW_START_SEC;
 		fw_start = FLASH_FW_START;
		fw_size = FLASH_FW_MAX_SIZE;
	}

	if (!size) {
		CH_ERR(adap, "FW image has no data\n");
		return -EINVAL;
	}
	if (size & 511) {
		CH_ERR(adap,
			"FW image size not multiple of 512 bytes\n");
		return -EINVAL;
	}
	if ((unsigned int) be16_to_cpu(hdr->len512) * 512 != size) {
		CH_ERR(adap,
			"FW image size differs from size in FW header\n");
		return -EINVAL;
	}
	if (size > fw_size) {
		CH_ERR(adap, "FW image too large, max is %u bytes\n",
			fw_size);
		return -EFBIG;
	}
	if (!t4_fw_matches_chip(adap, hdr))
		return -EINVAL;

	for (csum = 0, i = 0; i < size / sizeof(csum); i++)
		csum += be32_to_cpu(p[i]);

	if (csum != 0xffffffff) {
		CH_ERR(adap,
			"corrupted firmware image, checksum %#x\n", csum);
		return -EINVAL;
	}

	i = DIV_ROUND_UP(size, sf_sec_size);	/* # of sectors spanned */
	ret = t4_flash_erase_sectors(adap, fw_start_sec, fw_start_sec + i - 1);
	if (ret)
		goto out;

	/*
	 * We write the correct version at the end so the driver can see a bad
	 * version if the FW write fails.  Start by writing a copy of the
	 * first page with a bad version.
	 */
	memcpy(first_page, fw_data, SF_PAGE_SIZE);
	((struct fw_hdr *)first_page)->fw_ver = cpu_to_be32(0xffffffff);
	ret = t4_write_flash(adap, fw_start, SF_PAGE_SIZE, first_page, 1);
	if (ret)
		goto out;

	addr = fw_start;
	for (size -= SF_PAGE_SIZE; size; size -= SF_PAGE_SIZE) {
		addr += SF_PAGE_SIZE;
		fw_data += SF_PAGE_SIZE;
		ret = t4_write_flash(adap, addr, SF_PAGE_SIZE, fw_data, 1);
		if (ret)
			goto out;
	}

	ret = t4_write_flash(adap,
			     fw_start + offsetof(struct fw_hdr, fw_ver),
			     sizeof(hdr->fw_ver), (const u8 *)&hdr->fw_ver, 1);
out:
	if (ret)
		CH_ERR(adap, "firmware download failed, error %d\n",
			ret);
	else {
		if (bootstrap)
			ret = t4_get_bs_version(adap, &adap->params.bs_vers);
		else
			ret = t4_get_fw_version(adap, &adap->params.fw_vers);
	}
	return ret;
}

/**
 *	t4_phy_fw_ver - return current PHY firmware version
 *	@adap: the adapter
 *	@phy_fw_ver: return value buffer for PHY firmware version
 *
 *	Returns the current version of external PHY firmware on the
 *	adapter.
 */
int t4_phy_fw_ver(struct adapter *adap, int *phy_fw_ver)
{
	u32 param, val;
	int ret;

	param = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
		 V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_PHYFW) |
		 V_FW_PARAMS_PARAM_Y(adap->params.portvec) |
		 V_FW_PARAMS_PARAM_Z(FW_PARAMS_PARAM_DEV_PHYFW_VERSION));
	ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1,
			      &param, &val);
	if (ret < 0)
		return ret;
	*phy_fw_ver = val;
	return 0;
}

/**
 *	t4_load_phy_fw - download port PHY firmware
 *	@adap: the adapter
 *	@win: the PCI-E Memory Window index to use for t4_memory_rw()
 *	@lock: the lock to use to guard the memory copy
 *	@phy_fw_version: function to check PHY firmware versions
 *	@phy_fw_data: the PHY firmware image to write
 *	@phy_fw_size: image size
 *
 *	Transfer the specified PHY firmware to the adapter.  If a non-NULL
 *	@phy_fw_version is supplied, then it will be used to determine if
 *	it's necessary to perform the transfer by comparing the version
 *	of any existing adapter PHY firmware with that of the passed in
 *	PHY firmware image.  If @lock is non-NULL then it will be used
 *	around the call to t4_memory_rw() which transfers the PHY firmware
 *	to the adapter.
 *
 *	A negative error number will be returned if an error occurs.  If
 *	version number support is available and there's no need to upgrade
 *	the firmware, 0 will be returned.  If firmware is successfully
 *	transferred to the adapter, 1 will be retured.
 *
 *	NOTE: some adapters only have local RAM to store the PHY firmware.  As
 *	a result, a RESET of the adapter would cause that RAM to lose its
 *	contents.  Thus, loading PHY firmware on such adapters must happen after any
 *	FW_RESET_CMDs ...
 */
int t4_load_phy_fw(struct adapter *adap,
		   int win, t4_os_lock_t *lock,
		   int (*phy_fw_version)(const u8 *, size_t),
		   const u8 *phy_fw_data, size_t phy_fw_size)
{
	unsigned long mtype = 0, maddr = 0;
	u32 param, val;
	int cur_phy_fw_ver = 0, new_phy_fw_vers = 0;
	int ret;

	/*
	 * If we have version number support, then check to see if the adapter
	 * already has up-to-date PHY firmware loaded.
	 */
	if (phy_fw_version) {
		new_phy_fw_vers = phy_fw_version(phy_fw_data, phy_fw_size);
		ret = t4_phy_fw_ver(adap, &cur_phy_fw_ver);
		if (ret < 0)
			return ret;;

		if (cur_phy_fw_ver >= new_phy_fw_vers) {
			CH_WARN(adap, "PHY Firmware already up-to-date, "
				"version %#x\n", cur_phy_fw_ver);
			return 0;
		}
	}

	/*
	 * Ask the firmware where it wants us to copy the PHY firmware image.
	 * The size of the file requires a special version of the READ coommand
	 * which will pass the file size via the values field in PARAMS_CMD and
	 * retreive the return value from firmware and place it in the same
	 * buffer values
	 */
	param = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
		 V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_PHYFW) |
		 V_FW_PARAMS_PARAM_Y(adap->params.portvec) |
		 V_FW_PARAMS_PARAM_Z(FW_PARAMS_PARAM_DEV_PHYFW_DOWNLOAD));
	val = phy_fw_size;
	ret = t4_query_params_rw(adap, adap->mbox, adap->pf, 0, 1,
			      &param, &val, 1, true);
	if (ret < 0)
		return ret;
	mtype = val >> 8;
	maddr = (val & 0xff) << 16;

	/*
	 * Copy the supplied PHY Firmware image to the adapter memory location
	 * allocated by the adapter firmware.
	 */
	if (lock)
		t4_os_lock(lock);
	ret = t4_memory_rw(adap, win, mtype, maddr,
			   phy_fw_size, (__be32*)phy_fw_data,
			   T4_MEMORY_WRITE);
	if (lock)
		t4_os_unlock(lock);
	if (ret)
		return ret;

	/*
	 * Tell the firmware that the PHY firmware image has been written to
	 * RAM and it can now start copying it over to the PHYs.  The chip
	 * firmware will RESET the affected PHYs as part of this operation
	 * leaving them running the new PHY firmware image.
	 */
	param = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
		 V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_PHYFW) |
		 V_FW_PARAMS_PARAM_Y(adap->params.portvec) |
		 V_FW_PARAMS_PARAM_Z(FW_PARAMS_PARAM_DEV_PHYFW_DOWNLOAD));
	ret = t4_set_params_timeout(adap, adap->mbox, adap->pf, 0, 1,
				    &param, &val, 30000);

	/*
	 * If we have version number support, then check to see that the new
	 * firmware got loaded properly.
	 */
	if (phy_fw_version) {
		ret = t4_phy_fw_ver(adap, &cur_phy_fw_ver);
		if (ret < 0)
			return ret;

		if (cur_phy_fw_ver != new_phy_fw_vers) {
			CH_WARN(adap, "PHY Firmware did not update: "
				"version on adapter %#x, "
				"version flashed %#x\n",
				cur_phy_fw_ver, new_phy_fw_vers);
			return -ENXIO;
		}
	}

	return 1;
}

/**
 *	t4_fwcache - firmware cache operation
 *	@adap: the adapter
 *	@op  : the operation (flush or flush and invalidate)
 */
int t4_fwcache(struct adapter *adap, enum fw_params_param_dev_fwcache op)
{
	struct fw_params_cmd c;

	memset(&c, 0, sizeof(c));
	c.op_to_vfn =
	    cpu_to_be32(V_FW_CMD_OP(FW_PARAMS_CMD) |
			    F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
				V_FW_PARAMS_CMD_PFN(adap->pf) |
				V_FW_PARAMS_CMD_VFN(0));
	c.retval_len16 = cpu_to_be32(FW_LEN16(c));
	c.param[0].mnem =
	    cpu_to_be32(V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
			    V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_FWCACHE));
	c.param[0].val = (__force __be32)op;

	return t4_wr_mbox(adap, adap->mbox, &c, sizeof(c), NULL);
}

void t4_cim_read_pif_la(struct adapter *adap, u32 *pif_req, u32 *pif_rsp,
			unsigned int *pif_req_wrptr,
			unsigned int *pif_rsp_wrptr)
{
	int i, j;
	u32 cfg, val, req, rsp;

	cfg = t4_read_reg(adap, A_CIM_DEBUGCFG);
	if (cfg & F_LADBGEN)
		t4_write_reg(adap, A_CIM_DEBUGCFG, cfg ^ F_LADBGEN);

	val = t4_read_reg(adap, A_CIM_DEBUGSTS);
	req = G_POLADBGWRPTR(val);
	rsp = G_PILADBGWRPTR(val);
	if (pif_req_wrptr)
		*pif_req_wrptr = req;
	if (pif_rsp_wrptr)
		*pif_rsp_wrptr = rsp;

	for (i = 0; i < CIM_PIFLA_SIZE; i++) {
		for (j = 0; j < 6; j++) {
			t4_write_reg(adap, A_CIM_DEBUGCFG, V_POLADBGRDPTR(req) |
				     V_PILADBGRDPTR(rsp));
			*pif_req++ = t4_read_reg(adap, A_CIM_PO_LA_DEBUGDATA);
			*pif_rsp++ = t4_read_reg(adap, A_CIM_PI_LA_DEBUGDATA);
			req++;
			rsp++;
		}
		req = (req + 2) & M_POLADBGRDPTR;
		rsp = (rsp + 2) & M_PILADBGRDPTR;
	}
	t4_write_reg(adap, A_CIM_DEBUGCFG, cfg);
}

void t4_cim_read_ma_la(struct adapter *adap, u32 *ma_req, u32 *ma_rsp)
{
	u32 cfg;
	int i, j, idx;

	cfg = t4_read_reg(adap, A_CIM_DEBUGCFG);
	if (cfg & F_LADBGEN)
		t4_write_reg(adap, A_CIM_DEBUGCFG, cfg ^ F_LADBGEN);

	for (i = 0; i < CIM_MALA_SIZE; i++) {
		for (j = 0; j < 5; j++) {
			idx = 8 * i + j;
			t4_write_reg(adap, A_CIM_DEBUGCFG, V_POLADBGRDPTR(idx) |
				     V_PILADBGRDPTR(idx));
			*ma_req++ = t4_read_reg(adap, A_CIM_PO_LA_MADEBUGDATA);
			*ma_rsp++ = t4_read_reg(adap, A_CIM_PI_LA_MADEBUGDATA);
		}
	}
	t4_write_reg(adap, A_CIM_DEBUGCFG, cfg);
}

void t4_ulprx_read_la(struct adapter *adap, u32 *la_buf)
{
	unsigned int i, j;

	for (i = 0; i < 8; i++) {
		u32 *p = la_buf + i;

		t4_write_reg(adap, A_ULP_RX_LA_CTL, i);
		j = t4_read_reg(adap, A_ULP_RX_LA_WRPTR);
		t4_write_reg(adap, A_ULP_RX_LA_RDPTR, j);
		for (j = 0; j < ULPRX_LA_SIZE; j++, p += 8)
			*p = t4_read_reg(adap, A_ULP_RX_LA_RDDATA);
	}
}

typedef void (*int_handler_t)(struct adapter *adap);

struct intr_info {
	unsigned int mask;	/* bits to check in interrupt status */
	const char *msg;	/* message to print or NULL */
	short stat_idx;		/* stat counter to increment or -1 */
	unsigned short fatal;	/* whether the condition reported is fatal */
	int_handler_t int_handler;	/* platform-specific int handler */
};

/**
 *	t4_handle_intr_status - table driven interrupt handler
 *	@adapter: the adapter that generated the interrupt
 *	@reg: the interrupt status register to process
 *	@acts: table of interrupt actions
 *
 *	A table driven interrupt handler that applies a set of masks to an
 *	interrupt status word and performs the corresponding actions if the
 *	interrupts described by the mask have occurred.  The actions include
 *	optionally emitting a warning or alert message.  The table is terminated
 *	by an entry specifying mask 0.  Returns the number of fatal interrupt
 *	conditions.
 */
static int t4_handle_intr_status(struct adapter *adapter, unsigned int reg,
				 const struct intr_info *acts)
{
	int fatal = 0;
	unsigned int mask = 0;
	unsigned int status = t4_read_reg(adapter, reg);

	for ( ; acts->mask; ++acts) {
		if (!(status & acts->mask))
			continue;
		if (acts->fatal) {
			fatal++;
			CH_ALERT(adapter, "%s (0x%x)\n", acts->msg,
				  status & acts->mask);
		} else if (acts->msg)
			CH_WARN_RATELIMIT(adapter, "%s (0x%x)\n", acts->msg,
				 status & acts->mask);
		if (acts->int_handler)
			acts->int_handler(adapter);
		mask |= acts->mask;
	}
	status &= mask;
	if (status)	/* clear processed interrupts */
		t4_write_reg(adapter, reg, status);
	return fatal;
}

/*
 * Interrupt handler for the PCIE module.
 */
static void pcie_intr_handler(struct adapter *adapter)
{
	static const struct intr_info sysbus_intr_info[] = {
		{ F_RNPP, "RXNP array parity error", -1, 1 },
		{ F_RPCP, "RXPC array parity error", -1, 1 },
		{ F_RCIP, "RXCIF array parity error", -1, 1 },
		{ F_RCCP, "Rx completions control array parity error", -1, 1 },
		{ F_RFTP, "RXFT array parity error", -1, 1 },
		{ 0 }
	};
	static const struct intr_info pcie_port_intr_info[] = {
		{ F_TPCP, "TXPC array parity error", -1, 1 },
		{ F_TNPP, "TXNP array parity error", -1, 1 },
		{ F_TFTP, "TXFT array parity error", -1, 1 },
		{ F_TCAP, "TXCA array parity error", -1, 1 },
		{ F_TCIP, "TXCIF array parity error", -1, 1 },
		{ F_RCAP, "RXCA array parity error", -1, 1 },
		{ F_OTDD, "outbound request TLP discarded", -1, 1 },
		{ F_RDPE, "Rx data parity error", -1, 1 },
		{ F_TDUE, "Tx uncorrectable data error", -1, 1 },
		{ 0 }
	};
	static const struct intr_info pcie_intr_info[] = {
		{ F_MSIADDRLPERR, "MSI AddrL parity error", -1, 1 },
		{ F_MSIADDRHPERR, "MSI AddrH parity error", -1, 1 },
		{ F_MSIDATAPERR, "MSI data parity error", -1, 1 },
		{ F_MSIXADDRLPERR, "MSI-X AddrL parity error", -1, 1 },
		{ F_MSIXADDRHPERR, "MSI-X AddrH parity error", -1, 1 },
		{ F_MSIXDATAPERR, "MSI-X data parity error", -1, 1 },
		{ F_MSIXDIPERR, "MSI-X DI parity error", -1, 1 },
		{ F_PIOCPLPERR, "PCI PIO completion FIFO parity error", -1, 1 },
		{ F_PIOREQPERR, "PCI PIO request FIFO parity error", -1, 1 },
		{ F_TARTAGPERR, "PCI PCI target tag FIFO parity error", -1, 1 },
		{ F_CCNTPERR, "PCI CMD channel count parity error", -1, 1 },
		{ F_CREQPERR, "PCI CMD channel request parity error", -1, 1 },
		{ F_CRSPPERR, "PCI CMD channel response parity error", -1, 1 },
		{ F_DCNTPERR, "PCI DMA channel count parity error", -1, 1 },
		{ F_DREQPERR, "PCI DMA channel request parity error", -1, 1 },
		{ F_DRSPPERR, "PCI DMA channel response parity error", -1, 1 },
		{ F_HCNTPERR, "PCI HMA channel count parity error", -1, 1 },
		{ F_HREQPERR, "PCI HMA channel request parity error", -1, 1 },
		{ F_HRSPPERR, "PCI HMA channel response parity error", -1, 1 },
		{ F_CFGSNPPERR, "PCI config snoop FIFO parity error", -1, 1 },
		{ F_FIDPERR, "PCI FID parity error", -1, 1 },
		{ F_INTXCLRPERR, "PCI INTx clear parity error", -1, 1 },
		{ F_MATAGPERR, "PCI MA tag parity error", -1, 1 },
		{ F_PIOTAGPERR, "PCI PIO tag parity error", -1, 1 },
		{ F_RXCPLPERR, "PCI Rx completion parity error", -1, 1 },
		{ F_RXWRPERR, "PCI Rx write parity error", -1, 1 },
		{ F_RPLPERR, "PCI replay buffer parity error", -1, 1 },
		{ F_PCIESINT, "PCI core secondary fault", -1, 1 },
		{ F_PCIEPINT, "PCI core primary fault", -1, 1 },
		{ F_UNXSPLCPLERR, "PCI unexpected split completion error", -1,
		  0 },
		{ 0 }
	};

	static struct intr_info t5_pcie_intr_info[] = {
		{ F_MSTGRPPERR, "Master Response Read Queue parity error",
		  -1, 1 },
		{ F_MSTTIMEOUTPERR, "Master Timeout FIFO parity error", -1, 1 },
		{ F_MSIXSTIPERR, "MSI-X STI SRAM parity error", -1, 1 },
		{ F_MSIXADDRLPERR, "MSI-X AddrL parity error", -1, 1 },
		{ F_MSIXADDRHPERR, "MSI-X AddrH parity error", -1, 1 },
		{ F_MSIXDATAPERR, "MSI-X data parity error", -1, 1 },
		{ F_MSIXDIPERR, "MSI-X DI parity error", -1, 1 },
		{ F_PIOCPLGRPPERR, "PCI PIO completion Group FIFO parity error",
		  -1, 1 },
		{ F_PIOREQGRPPERR, "PCI PIO request Group FIFO parity error",
		  -1, 1 },
		{ F_TARTAGPERR, "PCI PCI target tag FIFO parity error", -1, 1 },
		{ F_MSTTAGQPERR, "PCI master tag queue parity error", -1, 1 },
		{ F_CREQPERR, "PCI CMD channel request parity error", -1, 1 },
		{ F_CRSPPERR, "PCI CMD channel response parity error", -1, 1 },
		{ F_DREQWRPERR, "PCI DMA channel write request parity error",
		  -1, 1 },
		{ F_DREQPERR, "PCI DMA channel request parity error", -1, 1 },
		{ F_DRSPPERR, "PCI DMA channel response parity error", -1, 1 },
		{ F_HREQWRPERR, "PCI HMA channel count parity error", -1, 1 },
		{ F_HREQPERR, "PCI HMA channel request parity error", -1, 1 },
		{ F_HRSPPERR, "PCI HMA channel response parity error", -1, 1 },
		{ F_CFGSNPPERR, "PCI config snoop FIFO parity error", -1, 1 },
		{ F_FIDPERR, "PCI FID parity error", -1, 1 },
		{ F_VFIDPERR, "PCI INTx clear parity error", -1, 1 },
		{ F_MAGRPPERR, "PCI MA group FIFO parity error", -1, 1 },
		{ F_PIOTAGPERR, "PCI PIO tag parity error", -1, 1 },
		{ F_IPRXHDRGRPPERR, "PCI IP Rx header group parity error",
		  -1, 1 },
		{ F_IPRXDATAGRPPERR, "PCI IP Rx data group parity error",
		  -1, 1 },
		{ F_RPLPERR, "PCI IP replay buffer parity error", -1, 1 },
		{ F_IPSOTPERR, "PCI IP SOT buffer parity error", -1, 1 },
		{ F_TRGT1GRPPERR, "PCI TRGT1 group FIFOs parity error", -1, 1 },
		{ F_READRSPERR, "Outbound read error", -1,
		  0 },
		{ 0 }
	};

	int fat;

	if (is_t4(adapter->params.chip))
		fat = t4_handle_intr_status(adapter,
				A_PCIE_CORE_UTL_SYSTEM_BUS_AGENT_STATUS,
				sysbus_intr_info) +
			t4_handle_intr_status(adapter,
					A_PCIE_CORE_UTL_PCI_EXPRESS_PORT_STATUS,
					pcie_port_intr_info) +
			t4_handle_intr_status(adapter, A_PCIE_INT_CAUSE,
					      pcie_intr_info);
	else
		fat = t4_handle_intr_status(adapter, A_PCIE_INT_CAUSE,
					    t5_pcie_intr_info);
	if (fat)
		t4_fatal_err(adapter);
}

/*
 * TP interrupt handler.
 */
static void tp_intr_handler(struct adapter *adapter)
{
	static const struct intr_info tp_intr_info[] = {
		{ 0x3fffffff, "TP parity error", -1, 1 },
		{ F_FLMTXFLSTEMPTY, "TP out of Tx pages", -1, 1 },
		{ 0 }
	};

	if (t4_handle_intr_status(adapter, A_TP_INT_CAUSE, tp_intr_info))
		t4_fatal_err(adapter);
}

/*
 * SGE interrupt handler.
 */
static void sge_intr_handler(struct adapter *adapter)
{
	u32 v = 0, perr;
	u32 err;

	static const struct intr_info sge_intr_info[] = {
		{ F_ERR_CPL_EXCEED_IQE_SIZE,
		  "SGE received CPL exceeding IQE size", -1, 1 },
		{ F_ERR_INVALID_CIDX_INC,
		  "SGE GTS CIDX increment too large", -1, 0 },
		{ F_ERR_CPL_OPCODE_0, "SGE received 0-length CPL", -1, 0 },
		{ F_DBFIFO_LP_INT, NULL, -1, 0, t4_db_full },
		{ F_ERR_DATA_CPL_ON_HIGH_QID1 | F_ERR_DATA_CPL_ON_HIGH_QID0,
		  "SGE IQID > 1023 received CPL for FL", -1, 0 },
		{ F_ERR_BAD_DB_PIDX3, "SGE DBP 3 pidx increment too large", -1,
		  0 },
		{ F_ERR_BAD_DB_PIDX2, "SGE DBP 2 pidx increment too large", -1,
		  0 },
		{ F_ERR_BAD_DB_PIDX1, "SGE DBP 1 pidx increment too large", -1,
		  0 },
		{ F_ERR_BAD_DB_PIDX0, "SGE DBP 0 pidx increment too large", -1,
		  0 },
		{ F_ERR_ING_CTXT_PRIO,
		  "SGE too many priority ingress contexts", -1, 0 },
		{ F_INGRESS_SIZE_ERR, "SGE illegal ingress QID", -1, 0 },
		{ F_EGRESS_SIZE_ERR, "SGE illegal egress QID", -1, 0 },
		{ F_ERR_PCIE_ERROR0 | F_ERR_PCIE_ERROR1 |
		  F_ERR_PCIE_ERROR2 | F_ERR_PCIE_ERROR3,
		  "SGE PCIe error for a DBP thread", -1, 0 },
		{ 0 }
	};

	static struct intr_info t4t5_sge_intr_info[] = {
		{ F_ERR_DROPPED_DB, NULL, -1, 0, t4_db_dropped },
		{ F_DBFIFO_HP_INT, NULL, -1, 0, t4_db_full },
		{ F_ERR_EGR_CTXT_PRIO,
		  "SGE too many priority egress contexts", -1, 0 },
		{ 0 }
	};

	/*
 	* For now, treat below interrupts as fatal so that we disable SGE and
 	* get better debug */
	static struct intr_info t6_sge_intr_info[] = {
		{ F_FATAL_WRE_LEN,
		  "SGE Actual WRE packet is less than advertized length",
		  -1, 1 },
		{ 0 }
	};

	perr = t4_read_reg(adapter, A_SGE_INT_CAUSE1);
	if (perr) {
		v |= perr;
		CH_ALERT(adapter, "SGE Cause1 Parity Error %#x\n", perr);
	}
	perr = t4_read_reg(adapter, A_SGE_INT_CAUSE2);
	if (perr) {
		v |= perr;
		CH_ALERT(adapter, "SGE Cause2 Parity Error %#x\n", perr);
	}
	if (CHELSIO_CHIP_VERSION(adapter->params.chip) >= CHELSIO_T5) {
		perr = t4_read_reg(adapter, A_SGE_INT_CAUSE5);
		if (perr) {
			v |= perr;
			CH_ALERT(adapter, "SGE Cause5 Parity Error %#x\n", perr);
		}
	}

	v |= t4_handle_intr_status(adapter, A_SGE_INT_CAUSE3, sge_intr_info);
	if (CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5)
		v |= t4_handle_intr_status(adapter, A_SGE_INT_CAUSE3,
					   t4t5_sge_intr_info);
	else
		v |= t4_handle_intr_status(adapter, A_SGE_INT_CAUSE3,
					   t6_sge_intr_info);

	err = t4_read_reg(adapter, A_SGE_ERROR_STATS);
	if (err & F_ERROR_QID_VALID) {
		CH_ERR(adapter, "SGE error for queue %u\n", G_ERROR_QID(err));
		if (err & F_UNCAPTURED_ERROR)
			CH_ERR(adapter, "SGE UNCAPTURED_ERROR set (clearing)\n");
		t4_write_reg(adapter, A_SGE_ERROR_STATS, F_ERROR_QID_VALID |
			     F_UNCAPTURED_ERROR);
	}

	if (v != 0)
		t4_fatal_err(adapter);
}

#define CIM_OBQ_INTR (F_OBQULP0PARERR | F_OBQULP1PARERR | F_OBQULP2PARERR |\
		      F_OBQULP3PARERR | F_OBQSGEPARERR | F_OBQNCSIPARERR)
#define CIM_IBQ_INTR (F_IBQTP0PARERR | F_IBQTP1PARERR | F_IBQULPPARERR |\
		      F_IBQSGEHIPARERR | F_IBQSGELOPARERR | F_IBQNCSIPARERR)

/*
 * CIM interrupt handler.
 */
static void cim_intr_handler(struct adapter *adapter)
{
	static const struct intr_info cim_intr_info[] = {
		{ F_PREFDROPINT, "CIM control register prefetch drop", -1, 1 },
		{ CIM_OBQ_INTR, "CIM OBQ parity error", -1, 1 },
		{ CIM_IBQ_INTR, "CIM IBQ parity error", -1, 1 },
		{ F_MBUPPARERR, "CIM mailbox uP parity error", -1, 1 },
		{ F_MBHOSTPARERR, "CIM mailbox host parity error", -1, 1 },
		{ F_TIEQINPARERRINT, "CIM TIEQ outgoing parity error", -1, 1 },
		{ F_TIEQOUTPARERRINT, "CIM TIEQ incoming parity error", -1, 1 },
		{ F_TIMER0INT, "CIM TIMER0 interrupt", -1, 1 },
		{ 0 }
	};
	static const struct intr_info cim_upintr_info[] = {
		{ F_RSVDSPACEINT, "CIM reserved space access", -1, 1 },
		{ F_ILLTRANSINT, "CIM illegal transaction", -1, 1 },
		{ F_ILLWRINT, "CIM illegal write", -1, 1 },
		{ F_ILLRDINT, "CIM illegal read", -1, 1 },
		{ F_ILLRDBEINT, "CIM illegal read BE", -1, 1 },
		{ F_ILLWRBEINT, "CIM illegal write BE", -1, 1 },
		{ F_SGLRDBOOTINT, "CIM single read from boot space", -1, 1 },
		{ F_SGLWRBOOTINT, "CIM single write to boot space", -1, 1 },
		{ F_BLKWRBOOTINT, "CIM block write to boot space", -1, 1 },
		{ F_SGLRDFLASHINT, "CIM single read from flash space", -1, 1 },
		{ F_SGLWRFLASHINT, "CIM single write to flash space", -1, 1 },
		{ F_BLKWRFLASHINT, "CIM block write to flash space", -1, 1 },
		{ F_SGLRDEEPROMINT, "CIM single EEPROM read", -1, 1 },
		{ F_SGLWREEPROMINT, "CIM single EEPROM write", -1, 1 },
		{ F_BLKRDEEPROMINT, "CIM block EEPROM read", -1, 1 },
		{ F_BLKWREEPROMINT, "CIM block EEPROM write", -1, 1 },
		{ F_SGLRDCTLINT , "CIM single read from CTL space", -1, 1 },
		{ F_SGLWRCTLINT , "CIM single write to CTL space", -1, 1 },
		{ F_BLKRDCTLINT , "CIM block read from CTL space", -1, 1 },
		{ F_BLKWRCTLINT , "CIM block write to CTL space", -1, 1 },
		{ F_SGLRDPLINT , "CIM single read from PL space", -1, 1 },
		{ F_SGLWRPLINT , "CIM single write to PL space", -1, 1 },
		{ F_BLKRDPLINT , "CIM block read from PL space", -1, 1 },
		{ F_BLKWRPLINT , "CIM block write to PL space", -1, 1 },
		{ F_REQOVRLOOKUPINT , "CIM request FIFO overwrite", -1, 1 },
		{ F_RSPOVRLOOKUPINT , "CIM response FIFO overwrite", -1, 1 },
		{ F_TIMEOUTINT , "CIM PIF timeout", -1, 1 },
		{ F_TIMEOUTMAINT , "CIM PIF MA timeout", -1, 1 },
		{ 0 }
	};
	u32 val, fw_err;
	int fat;

	fw_err = t4_read_reg(adapter, A_PCIE_FW);
	if (fw_err & F_PCIE_FW_ERR)
		t4_report_fw_error(adapter);

	/* When the Firmware detects an internal error which normally wouldn't
	 * raise a Host Interrupt, it forces a CIM Timer0 interrupt in order
	 * to make sure the Host sees the Firmware Crash.  So if we have a
	 * Timer0 interrupt and don't see a Firmware Crash, ignore the Timer0
	 * interrupt.
	 */
	val = t4_read_reg(adapter, A_CIM_HOST_INT_CAUSE);
	if (val & F_TIMER0INT)
		if (!(fw_err & F_PCIE_FW_ERR) ||
		    (G_PCIE_FW_EVAL(fw_err) != PCIE_FW_EVAL_CRASH))
			t4_write_reg(adapter, A_CIM_HOST_INT_CAUSE,
				     F_TIMER0INT);

	fat = t4_handle_intr_status(adapter, A_CIM_HOST_INT_CAUSE,
				    cim_intr_info) +
	      t4_handle_intr_status(adapter, A_CIM_HOST_UPACC_INT_CAUSE,
				    cim_upintr_info);
	if (fat)
		t4_fatal_err(adapter);
}

/*
 * ULP RX interrupt handler.
 */
static void ulprx_intr_handler(struct adapter *adapter)
{
	static const struct intr_info ulprx_intr_info[] = {
		{ F_CAUSE_CTX_1, "ULPRX channel 1 context error", -1, 1 },
		{ F_CAUSE_CTX_0, "ULPRX channel 0 context error", -1, 1 },
		{ 0x7fffff, "ULPRX parity error", -1, 1 },
		{ 0 }
	};

	if (t4_handle_intr_status(adapter, A_ULP_RX_INT_CAUSE, ulprx_intr_info))
		t4_fatal_err(adapter);
}

/*
 * ULP TX interrupt handler.
 */
static void ulptx_intr_handler(struct adapter *adapter)
{
	static const struct intr_info ulptx_intr_info[] = {
		{ F_PBL_BOUND_ERR_CH3, "ULPTX channel 3 PBL out of bounds", -1,
		  0 },
		{ F_PBL_BOUND_ERR_CH2, "ULPTX channel 2 PBL out of bounds", -1,
		  0 },
		{ F_PBL_BOUND_ERR_CH1, "ULPTX channel 1 PBL out of bounds", -1,
		  0 },
		{ F_PBL_BOUND_ERR_CH0, "ULPTX channel 0 PBL out of bounds", -1,
		  0 },
		{ 0xfffffff, "ULPTX parity error", -1, 1 },
		{ 0 }
	};

	if (t4_handle_intr_status(adapter, A_ULP_TX_INT_CAUSE, ulptx_intr_info))
		t4_fatal_err(adapter);
}

/*
 * PM TX interrupt handler.
 */
static void pmtx_intr_handler(struct adapter *adapter)
{
	static const struct intr_info pmtx_intr_info[] = {
		{ F_PCMD_LEN_OVFL0, "PMTX channel 0 pcmd too large", -1, 1 },
		{ F_PCMD_LEN_OVFL1, "PMTX channel 1 pcmd too large", -1, 1 },
		{ F_PCMD_LEN_OVFL2, "PMTX channel 2 pcmd too large", -1, 1 },
		{ F_ZERO_C_CMD_ERROR, "PMTX 0-length pcmd", -1, 1 },
		{ 0xffffff0, "PMTX framing error", -1, 1 },
		{ F_OESPI_PAR_ERROR, "PMTX oespi parity error", -1, 1 },
		{ F_DB_OPTIONS_PAR_ERROR, "PMTX db_options parity error", -1,
		  1 },
		{ F_ICSPI_PAR_ERROR, "PMTX icspi parity error", -1, 1 },
		{ F_C_PCMD_PAR_ERROR, "PMTX c_pcmd parity error", -1, 1},
		{ 0 }
	};

	if (t4_handle_intr_status(adapter, A_PM_TX_INT_CAUSE, pmtx_intr_info))
		t4_fatal_err(adapter);
}

/*
 * PM RX interrupt handler.
 */
static void pmrx_intr_handler(struct adapter *adapter)
{
	static const struct intr_info pmrx_intr_info[] = {
		{ F_ZERO_E_CMD_ERROR, "PMRX 0-length pcmd", -1, 1 },
		{ 0x3ffff0, "PMRX framing error", -1, 1 },
		{ F_OCSPI_PAR_ERROR, "PMRX ocspi parity error", -1, 1 },
		{ F_DB_OPTIONS_PAR_ERROR, "PMRX db_options parity error", -1,
		  1 },
		{ F_IESPI_PAR_ERROR, "PMRX iespi parity error", -1, 1 },
		{ F_E_PCMD_PAR_ERROR, "PMRX e_pcmd parity error", -1, 1},
		{ 0 }
	};

	if (t4_handle_intr_status(adapter, A_PM_RX_INT_CAUSE, pmrx_intr_info))
		t4_fatal_err(adapter);
}

/*
 * CPL switch interrupt handler.
 */
static void cplsw_intr_handler(struct adapter *adapter)
{
	static const struct intr_info cplsw_intr_info[] = {
		{ F_CIM_OP_MAP_PERR, "CPLSW CIM op_map parity error", -1, 1 },
		{ F_CIM_OVFL_ERROR, "CPLSW CIM overflow", -1, 1 },
		{ F_TP_FRAMING_ERROR, "CPLSW TP framing error", -1, 1 },
		{ F_SGE_FRAMING_ERROR, "CPLSW SGE framing error", -1, 1 },
		{ F_CIM_FRAMING_ERROR, "CPLSW CIM framing error", -1, 1 },
		{ F_ZERO_SWITCH_ERROR, "CPLSW no-switch error", -1, 1 },
		{ 0 }
	};

	if (t4_handle_intr_status(adapter, A_CPL_INTR_CAUSE, cplsw_intr_info))
		t4_fatal_err(adapter);
}

/*
 * LE interrupt handler.
 */
static void le_intr_handler(struct adapter *adap)
{
	unsigned int chip_ver = CHELSIO_CHIP_VERSION(adap->params.chip);
	static const struct intr_info le_intr_info[] = {
		{ F_LIPMISS, "LE LIP miss", -1, 0 },
		{ F_LIP0, "LE 0 LIP error", -1, 0 },
		{ F_PARITYERR, "LE parity error", -1, 1 },
		{ F_UNKNOWNCMD, "LE unknown command", -1, 1 },
		{ F_REQQPARERR, "LE request queue parity error", -1, 1 },
		{ 0 }
	};

	static struct intr_info t6_le_intr_info[] = {
		/* log an error for HASHTBLMEMCRCERR and clear the bit */
		{ F_T6_HASHTBLMEMCRCERR, "LE hash table mem crc error", -1, 0 },
		{ F_T6_LIPMISS, "LE LIP miss", -1, 0 },
		{ F_T6_LIP0, "LE 0 LIP error", -1, 0 },
		{ F_TCAMINTPERR, "LE parity error", -1, 1 },
		{ F_T6_UNKNOWNCMD, "LE unknown command", -1, 1 },
		{ F_SSRAMINTPERR, "LE request queue parity error", -1, 1 },
		{ 0 }
	};

	if (t4_handle_intr_status(adap, A_LE_DB_INT_CAUSE,
				  (chip_ver <= CHELSIO_T5) ?
				  le_intr_info : t6_le_intr_info))
		t4_fatal_err(adap);
}

/*
 * MPS interrupt handler.
 */
static void mps_intr_handler(struct adapter *adapter)
{
	static const struct intr_info mps_rx_intr_info[] = {
		{ 0xffffff, "MPS Rx parity error", -1, 1 },
		{ 0 }
	};
	static const struct intr_info mps_tx_intr_info[] = {
		{ V_TPFIFO(M_TPFIFO), "MPS Tx TP FIFO parity error", -1, 1 },
		{ F_NCSIFIFO, "MPS Tx NC-SI FIFO parity error", -1, 1 },
		{ V_TXDATAFIFO(M_TXDATAFIFO), "MPS Tx data FIFO parity error",
		  -1, 1 },
		{ V_TXDESCFIFO(M_TXDESCFIFO), "MPS Tx desc FIFO parity error",
		  -1, 1 },
		{ F_BUBBLE, "MPS Tx underflow", -1, 1 },
		{ F_SECNTERR, "MPS Tx SOP/EOP error", -1, 1 },
		{ F_FRMERR, "MPS Tx framing error", -1, 1 },
		{ 0 }
	};
	static const struct intr_info t6_mps_tx_intr_info[] = {
		{ V_TPFIFO(M_TPFIFO), "MPS Tx TP FIFO parity error", -1, 1 },
		{ F_NCSIFIFO, "MPS Tx NC-SI FIFO parity error", -1, 1 },
		{ V_TXDATAFIFO(M_TXDATAFIFO), "MPS Tx data FIFO parity error",
		  -1, 1 },
		{ V_TXDESCFIFO(M_TXDESCFIFO), "MPS Tx desc FIFO parity error",
		  -1, 1 },
		/* MPS Tx Bubble is normal for T6 */
		{ F_SECNTERR, "MPS Tx SOP/EOP error", -1, 1 },
		{ F_FRMERR, "MPS Tx framing error", -1, 1 },
		{ 0 }
	};
	static const struct intr_info mps_trc_intr_info[] = {
		{ V_FILTMEM(M_FILTMEM), "MPS TRC filter parity error", -1, 1 },
		{ V_PKTFIFO(M_PKTFIFO), "MPS TRC packet FIFO parity error", -1,
		  1 },
		{ F_MISCPERR, "MPS TRC misc parity error", -1, 1 },
		{ 0 }
	};
	static const struct intr_info mps_stat_sram_intr_info[] = {
		{ 0x1fffff, "MPS statistics SRAM parity error", -1, 1 },
		{ 0 }
	};
	static const struct intr_info mps_stat_tx_intr_info[] = {
		{ 0xfffff, "MPS statistics Tx FIFO parity error", -1, 1 },
		{ 0 }
	};
	static const struct intr_info mps_stat_rx_intr_info[] = {
		{ 0xffffff, "MPS statistics Rx FIFO parity error", -1, 1 },
		{ 0 }
	};
	static const struct intr_info mps_cls_intr_info[] = {
		{ F_MATCHSRAM, "MPS match SRAM parity error", -1, 1 },
		{ F_MATCHTCAM, "MPS match TCAM parity error", -1, 1 },
		{ F_HASHSRAM, "MPS hash SRAM parity error", -1, 1 },
		{ 0 }
	};

	int fat;

	fat = t4_handle_intr_status(adapter, A_MPS_RX_PERR_INT_CAUSE,
				    mps_rx_intr_info) +
	      t4_handle_intr_status(adapter, A_MPS_TX_INT_CAUSE,
				    is_t6(adapter->params.chip)
				    ? t6_mps_tx_intr_info
				    : mps_tx_intr_info) +
	      t4_handle_intr_status(adapter, A_MPS_TRC_INT_CAUSE,
				    mps_trc_intr_info) +
	      t4_handle_intr_status(adapter, A_MPS_STAT_PERR_INT_CAUSE_SRAM,
				    mps_stat_sram_intr_info) +
	      t4_handle_intr_status(adapter, A_MPS_STAT_PERR_INT_CAUSE_TX_FIFO,
				    mps_stat_tx_intr_info) +
	      t4_handle_intr_status(adapter, A_MPS_STAT_PERR_INT_CAUSE_RX_FIFO,
				    mps_stat_rx_intr_info) +
	      t4_handle_intr_status(adapter, A_MPS_CLS_INT_CAUSE,
				    mps_cls_intr_info);

	t4_write_reg(adapter, A_MPS_INT_CAUSE, 0);
	t4_read_reg(adapter, A_MPS_INT_CAUSE);	/* flush */
	if (fat)
		t4_fatal_err(adapter);
}

#define MEM_INT_MASK (F_PERR_INT_CAUSE | F_ECC_CE_INT_CAUSE | \
		      F_ECC_UE_INT_CAUSE)

/*
 * EDC/MC interrupt handler.
 */
static void mem_intr_handler(struct adapter *adapter, int idx)
{
	static const char name[4][7] = { "EDC0", "EDC1", "MC/MC0", "MC1" };

	unsigned int addr, cnt_addr, v;

	if (idx <= MEM_EDC1) {
		addr = EDC_REG(A_EDC_INT_CAUSE, idx);
		cnt_addr = EDC_REG(A_EDC_ECC_STATUS, idx);
	} else if (idx == MEM_MC) {
		if (is_t4(adapter->params.chip)) {
			addr = A_MC_INT_CAUSE;
			cnt_addr = A_MC_ECC_STATUS;
		} else {
			addr = A_MC_P_INT_CAUSE;
			cnt_addr = A_MC_P_ECC_STATUS;
		}
	} else {
		addr = MC_REG(A_MC_P_INT_CAUSE, 1);
		cnt_addr = MC_REG(A_MC_P_ECC_STATUS, 1);
	}

	v = t4_read_reg(adapter, addr) & MEM_INT_MASK;
	if (v & F_PERR_INT_CAUSE)
		CH_ALERT(adapter, "%s FIFO parity error\n",
			  name[idx]);
	if (v & F_ECC_CE_INT_CAUSE) {
		u32 cnt = G_ECC_CECNT(t4_read_reg(adapter, cnt_addr));

		if (idx <= MEM_EDC1)
			t4_edc_err_read(adapter, idx);

		t4_write_reg(adapter, cnt_addr, V_ECC_CECNT(M_ECC_CECNT));
		CH_WARN_RATELIMIT(adapter,
				  "%u %s correctable ECC data error%s\n",
				  cnt, name[idx], cnt > 1 ? "s" : "");
	}
	if (v & F_ECC_UE_INT_CAUSE)
		CH_ALERT(adapter,
			 "%s uncorrectable ECC data error\n", name[idx]);

	t4_write_reg(adapter, addr, v);
	if (v & (F_PERR_INT_CAUSE | F_ECC_UE_INT_CAUSE))
		t4_fatal_err(adapter);
}

/*
 * MA interrupt handler.
 */
static void ma_intr_handler(struct adapter *adapter)
{
	u32 v, status = t4_read_reg(adapter, A_MA_INT_CAUSE);

	if (status & F_MEM_PERR_INT_CAUSE) {
		CH_ALERT(adapter,
			  "MA parity error, parity status %#x\n",
			  t4_read_reg(adapter, A_MA_PARITY_ERROR_STATUS1));
		if (is_t5(adapter->params.chip))
			CH_ALERT(adapter,
				  "MA parity error, parity status %#x\n",
				  t4_read_reg(adapter,
					      A_MA_PARITY_ERROR_STATUS2));
	}
	if (status & F_MEM_WRAP_INT_CAUSE) {
		v = t4_read_reg(adapter, A_MA_INT_WRAP_STATUS);
		CH_ALERT(adapter, "MA address wrap-around error by "
			  "client %u to address %#x\n",
			  G_MEM_WRAP_CLIENT_NUM(v),
			  G_MEM_WRAP_ADDRESS(v) << 4);
	}
	t4_write_reg(adapter, A_MA_INT_CAUSE, status);
	t4_fatal_err(adapter);
}

/*
 * SMB interrupt handler.
 */
static void smb_intr_handler(struct adapter *adap)
{
	static const struct intr_info smb_intr_info[] = {
		{ F_MSTTXFIFOPARINT, "SMB master Tx FIFO parity error", -1, 1 },
		{ F_MSTRXFIFOPARINT, "SMB master Rx FIFO parity error", -1, 1 },
		{ F_SLVFIFOPARINT, "SMB slave FIFO parity error", -1, 1 },
		{ 0 }
	};

	if (t4_handle_intr_status(adap, A_SMB_INT_CAUSE, smb_intr_info))
		t4_fatal_err(adap);
}

/*
 * NC-SI interrupt handler.
 */
static void ncsi_intr_handler(struct adapter *adap)
{
	static const struct intr_info ncsi_intr_info[] = {
		{ F_CIM_DM_PRTY_ERR, "NC-SI CIM parity error", -1, 1 },
		{ F_MPS_DM_PRTY_ERR, "NC-SI MPS parity error", -1, 1 },
		{ F_TXFIFO_PRTY_ERR, "NC-SI Tx FIFO parity error", -1, 1 },
		{ F_RXFIFO_PRTY_ERR, "NC-SI Rx FIFO parity error", -1, 1 },
		{ 0 }
	};

	if (t4_handle_intr_status(adap, A_NCSI_INT_CAUSE, ncsi_intr_info))
		t4_fatal_err(adap);
}

/*
 * XGMAC interrupt handler.
 */
static void xgmac_intr_handler(struct adapter *adap, int port)
{
	u32 v, int_cause_reg;

	if (is_t4(adap->params.chip))
		int_cause_reg = PORT_REG(port, A_XGMAC_PORT_INT_CAUSE);
	else
		int_cause_reg = T5_PORT_REG(port, A_MAC_PORT_INT_CAUSE);

	v = t4_read_reg(adap, int_cause_reg);

	v &= (F_TXFIFO_PRTY_ERR | F_RXFIFO_PRTY_ERR);
	if (!v)
		return;

	if (v & F_TXFIFO_PRTY_ERR)
		CH_ALERT(adap, "XGMAC %d Tx FIFO parity error\n",
			  port);
	if (v & F_RXFIFO_PRTY_ERR)
		CH_ALERT(adap, "XGMAC %d Rx FIFO parity error\n",
			  port);
	t4_write_reg(adap, int_cause_reg, v);
	t4_fatal_err(adap);
}

/*
 * PL Parity Error interrupt handler.
 */
static void pl_perr_intr_handler(struct adapter *adap)
{
	static const struct intr_info pl_perr_info[] = {
		{ F_UART, "UART Parity Error", -1, },
		{ F_ULP_TX, "ULP TX Parity Error", -1 },
		{ F_SGE, "SGE Parity Error", -1 },
		{ F_HMA, "HMA Parity Error", -1 },
		{ F_CPL_SWITCH, "CPL Switch Parity Error", -1 },
		{ F_ULP_RX, "ULP RX Parity Error", -1 },
		{ F_PM_RX, "PM RX Parity Error", -1 },
		{ F_PM_TX, "PM TX Parity Error", -1 },
		{ F_MA, "MA Parity Error", -1 },
		{ F_TP, "TP Parity Error", -1 },
		{ F_LE, "LE Parity Error", -1 },
		{ F_EDC1, "EDC1 Parity Error", -1 },
		{ F_EDC0, "EDC0 Parity Error", -1 },
		{ F_MC, "MC Parity Error", -1 },
		{ F_PCIE, "PCIE Parity Error", -1 },
		{ F_PMU, "PMU Parity Error", -1 },
		{ F_XGMAC_KR1, "XGMAC_KR1 Parity Error", -1 },
		{ F_XGMAC_KR0, "XGMAC_KR0 Parity Error", -1 },
		{ F_XGMAC1, "XGMAC1 Parity Error", -1 },
		{ F_XGMAC0, "XGMAC0 Parity Error", -1 },
		{ F_SMB, "SMB Parity Error", -1 },
		{ F_SF, "SF Parity Error", -1 },
		{ F_PL, "PL Parity Error", -1 },
		{ F_NCSI, "NCSI Parity Error", -1 },
		{ F_MPS, "MPS Parity Error", -1 },
		{ F_MI, "MI Parity Error", -1 },
		{ F_DBG, "DBG Parity Error", -1 },
		{ F_I2CM, "I2CM Parity Error", -1 },
		{ F_CIM, "CIM Parity Error", -1 },
	};

	t4_handle_intr_status(adap, A_PL_PERR_CAUSE, pl_perr_info);
	/* pl_intr_handler() will do the t4_fatal_err(adap) */
}

/*
 * PL interrupt handler.
 */
static void pl_intr_handler(struct adapter *adap)
{
	static const struct intr_info pl_intr_info[] = {
		{ F_FATALPERR, "Fatal parity error", -1, 1,
		  pl_perr_intr_handler },
		{ F_PERRVFID, "PL VFID_MAP parity error", -1, 1 },
		{ 0 }
	};

	static struct intr_info t5_pl_intr_info[] = {
		{ F_FATALPERR, "Fatal parity error", -1, 1,
		  pl_perr_intr_handler },
		{ 0 }
	};

	if (t4_handle_intr_status(adap, A_PL_PL_INT_CAUSE,
				  is_t4(adap->params.chip) ?
				  pl_intr_info : t5_pl_intr_info))
		t4_fatal_err(adap);
}

#define PF_INTR_MASK (F_PFSW | F_PFCIM)

/**
 *	t4_slow_intr_handler - control path interrupt handler
 *	@adapter: the adapter
 *
 *	T4 interrupt handler for non-data global interrupt events, e.g., errors.
 *	The designation 'slow' is because it involves register reads, while
 *	data interrupts typically don't involve any MMIOs.
 */
int t4_slow_intr_handler(struct adapter *adapter)
{
	/* There are rare cases where a PL_INT_CAUSE bit may end up getting
	 * set when the corresponding PL_INT_ENABLE bit isn't set.  It's
	 * easiest just to mask that case here.
	 */
	u32 raw_cause = t4_read_reg(adapter, A_PL_INT_CAUSE);
	u32 enable = t4_read_reg(adapter, A_PL_INT_ENABLE);
	u32 cause = raw_cause & enable;

	if (!(cause & GLBL_INTR_MASK))
		return 0;

	/* Disable all the interrupt(bits) in PL_INT_ENABLE */
	t4_write_reg(adapter, A_PL_INT_ENABLE, 0);
	(void)t4_read_reg(adapter, A_PL_INT_ENABLE); /* flush */

	if (cause & F_CIM)
		cim_intr_handler(adapter);
	if (cause & F_MPS)
		mps_intr_handler(adapter);
	if (cause & F_NCSI)
		ncsi_intr_handler(adapter);
	if (cause & F_PL)
		pl_intr_handler(adapter);
	if (cause & F_SMB)
		smb_intr_handler(adapter);
	if (cause & F_MAC0)
		xgmac_intr_handler(adapter, 0);
	if (cause & F_MAC1)
		xgmac_intr_handler(adapter, 1);
	if (cause & F_MAC2)
		xgmac_intr_handler(adapter, 2);
	if (cause & F_MAC3)
		xgmac_intr_handler(adapter, 3);
	if (cause & F_PCIE)
		pcie_intr_handler(adapter);
	if (cause & F_MC0)
		mem_intr_handler(adapter, MEM_MC);
	if (is_t5(adapter->params.chip) && (cause & F_MC1))
		mem_intr_handler(adapter, MEM_MC1);
	if (cause & F_EDC0)
		mem_intr_handler(adapter, MEM_EDC0);
	if (cause & F_EDC1)
		mem_intr_handler(adapter, MEM_EDC1);
	if (cause & F_LE)
		le_intr_handler(adapter);
	if (cause & F_TP)
		tp_intr_handler(adapter);
	if (cause & F_MA)
		ma_intr_handler(adapter);
	if (cause & F_PM_TX)
		pmtx_intr_handler(adapter);
	if (cause & F_PM_RX)
		pmrx_intr_handler(adapter);
	if (cause & F_ULP_RX)
		ulprx_intr_handler(adapter);
	if (cause & F_CPL_SWITCH)
		cplsw_intr_handler(adapter);
	if (cause & F_SGE)
		sge_intr_handler(adapter);
	if (cause & F_ULP_TX)
		ulptx_intr_handler(adapter);

	/* Clear the interrupts just processed for which we are the master. */
	t4_write_reg(adapter, A_PL_INT_CAUSE, raw_cause & GLBL_INTR_MASK);

	/* re-enable the interrupts (bits that were disabled
	 * earlier in PL_INT_ENABLE)
	 */
	t4_write_reg(adapter, A_PL_INT_ENABLE, enable);
	(void)t4_read_reg(adapter, A_PL_INT_ENABLE); /* flush */
	return 1;
}

/**
 *	t4_intr_enable - enable interrupts
 *	@adapter: the adapter whose interrupts should be enabled
 *
 *	Enable PF-specific interrupts for the calling function and the top-level
 *	interrupt concentrator for global interrupts.  Interrupts are already
 *	enabled at each module,	here we just enable the roots of the interrupt
 *	hierarchies.
 *
 *	Note: this function should be called only when the driver manages
 *	non PF-specific interrupts from the various HW modules.  Only one PCI
 *	function at a time should be doing this.
 */
void t4_intr_enable(struct adapter *adapter)
{
	u32 val = 0;
	u32 whoami = t4_read_reg(adapter, A_PL_WHOAMI);
	u32 pf = (CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5
		  ? G_SOURCEPF(whoami)
		  : G_T6_SOURCEPF(whoami));

	if (CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5)
		val = F_ERR_DROPPED_DB | F_ERR_EGR_CTXT_PRIO | F_DBFIFO_HP_INT;
	else
		val = F_ERR_PCIE_ERROR0 | F_ERR_PCIE_ERROR1 | F_FATAL_WRE_LEN;
	t4_write_reg(adapter, A_SGE_INT_ENABLE3, F_ERR_CPL_EXCEED_IQE_SIZE |
		     F_ERR_INVALID_CIDX_INC | F_ERR_CPL_OPCODE_0 |
		     F_ERR_DATA_CPL_ON_HIGH_QID1 | F_INGRESS_SIZE_ERR |
		     F_ERR_DATA_CPL_ON_HIGH_QID0 | F_ERR_BAD_DB_PIDX3 |
		     F_ERR_BAD_DB_PIDX2 | F_ERR_BAD_DB_PIDX1 |
		     F_ERR_BAD_DB_PIDX0 | F_ERR_ING_CTXT_PRIO |
		     F_DBFIFO_LP_INT | F_EGRESS_SIZE_ERR | val);
	t4_write_reg(adapter, MYPF_REG(A_PL_PF_INT_ENABLE), PF_INTR_MASK);
	t4_set_reg_field(adapter, A_PL_INT_MAP0, 0, 1 << pf);
}

/**
 *	t4_intr_disable - disable interrupts
 *	@adapter: the adapter whose interrupts should be disabled
 *
 *	Disable interrupts.  We only disable the top-level interrupt
 *	concentrators.  The caller must be a PCI function managing global
 *	interrupts.
 */
void t4_intr_disable(struct adapter *adapter)
{
	u32 whoami = t4_read_reg(adapter, A_PL_WHOAMI);
	u32 pf = (CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5
		  ? G_SOURCEPF(whoami)
		  : G_T6_SOURCEPF(whoami));

	t4_write_reg(adapter, MYPF_REG(A_PL_PF_INT_ENABLE), 0);
	t4_set_reg_field(adapter, A_PL_INT_MAP0, 1 << pf, 0);
}

unsigned int t4_chip_rss_size(struct adapter *adap)
{
	if (CHELSIO_CHIP_VERSION(adap->params.chip) <= CHELSIO_T5)
		return RSS_NENTRIES;
	else
		return T6_RSS_NENTRIES;
}

/**
 *	t4_config_rss_range - configure a portion of the RSS mapping table
 *	@adapter: the adapter
 *	@mbox: mbox to use for the FW command
 *	@viid: virtual interface whose RSS subtable is to be written
 *	@start: start entry in the table to write
 *	@n: how many table entries to write
 *	@rspq: values for the "response queue" (Ingress Queue) lookup table
 *	@nrspq: number of values in @rspq
 *
 *	Programs the selected part of the VI's RSS mapping table with the
 *	provided values.  If @nrspq < @n the supplied values are used repeatedly
 *	until the full table range is populated.
 *
 *	The caller must ensure the values in @rspq are in the range allowed for
 *	@viid.
 */
int t4_config_rss_range(struct adapter *adapter, int mbox, unsigned int viid,
			int start, int n, const u16 *rspq, unsigned int nrspq)
{
	int ret;
	const u16 *rsp = rspq;
	const u16 *rsp_end = rspq + nrspq;
	struct fw_rss_ind_tbl_cmd cmd;

	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_RSS_IND_TBL_CMD) |
				     F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
				     V_FW_RSS_IND_TBL_CMD_VIID(viid));
	cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));

	/* Each firmware RSS command can accommodate up to 32 RSS Ingress
	 * Queue Identifiers.  These Ingress Queue IDs are packed three to
	 * a 32-bit word as 10-bit values with the upper remaining 2 bits
	 * reserved.
	 */
	while (n > 0) {
		int nq = min(n, 32);
		int nq_packed = 0;
		__be32 *qp = &cmd.iq0_to_iq2;

		/* Set up the firmware RSS command header to send the next
		 * "nq" Ingress Queue IDs to the firmware.
		 */
		cmd.niqid = cpu_to_be16(nq);
		cmd.startidx = cpu_to_be16(start);

		/* "nq" more done for the start of the next loop.
		 */
		start += nq;
		n -= nq;

		/* While there are still Ingress Queue IDs to stuff into the
		 * current firmware RSS command, retrieve them from the
		 * Ingress Queue ID array and insert them into the command.
		 */
		while (nq > 0) {
			/* Grab up to the next 3 Ingress Queue IDs (wrapping
			 * around the Ingress Queue ID array if necessary) and
			 * insert them into the firmware RSS command at the
			 * current 3-tuple position within the commad.
			 */
			u16 qbuf[3];
			u16 *qbp = qbuf;
			int nqbuf = min(3, nq);

			nq -= nqbuf;
			qbuf[0] = qbuf[1] = qbuf[2] = 0;
			while (nqbuf && nq_packed < 32) {
				nqbuf--;
				nq_packed++;
				*qbp++ = *rsp++;
				if (rsp >= rsp_end)
					rsp = rspq;
			}
			*qp++ = cpu_to_be32(V_FW_RSS_IND_TBL_CMD_IQ0(qbuf[0]) |
					    V_FW_RSS_IND_TBL_CMD_IQ1(qbuf[1]) |
					    V_FW_RSS_IND_TBL_CMD_IQ2(qbuf[2]));
		}

		/* Send this portion of the RRS table update to the firmware;
		 * bail out on any errors.
		 */
		ret = t4_wr_mbox(adapter, mbox, &cmd, sizeof(cmd), NULL);
		if (ret)
			return ret;
	}
	return 0;
}

/**
 *	t4_config_glbl_rss - configure the global RSS mode
 *	@adapter: the adapter
 *	@mbox: mbox to use for the FW command
 *	@mode: global RSS mode
 *	@flags: mode-specific flags
 *
 *	Sets the global RSS mode.
 */
int t4_config_glbl_rss(struct adapter *adapter, int mbox, unsigned int mode,
		       unsigned int flags)
{
	struct fw_rss_glb_config_cmd c;

	memset(&c, 0, sizeof(c));
	c.op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_RSS_GLB_CONFIG_CMD) |
				    F_FW_CMD_REQUEST | F_FW_CMD_WRITE);
	c.retval_len16 = cpu_to_be32(FW_LEN16(c));
	if (mode == FW_RSS_GLB_CONFIG_CMD_MODE_MANUAL) {
		c.u.manual.mode_pkd =
			cpu_to_be32(V_FW_RSS_GLB_CONFIG_CMD_MODE(mode));
	} else if (mode == FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL) {
		c.u.basicvirtual.mode_keymode =
			cpu_to_be32(V_FW_RSS_GLB_CONFIG_CMD_MODE(mode));
		c.u.basicvirtual.synmapen_to_hashtoeplitz = cpu_to_be32(flags);
	} else
		return -EINVAL;
	return t4_wr_mbox(adapter, mbox, &c, sizeof(c), NULL);
}

/**
 *	t4_config_vi_rss - configure per VI RSS settings
 *	@adapter: the adapter
 *	@mbox: mbox to use for the FW command
 *	@viid: the VI id
 *	@flags: RSS flags
 *	@defq: id of the default RSS queue for the VI.
 *	@skeyidx: RSS secret key table index for non-global mode
 *	@skey: RSS vf_scramble key for VI.
 *
 *	Configures VI-specific RSS properties.
 */
int t4_config_vi_rss(struct adapter *adapter, int mbox, unsigned int viid,
		     unsigned int flags, unsigned int defq, unsigned int skeyidx,
		     unsigned int skey)
{
	struct fw_rss_vi_config_cmd c;

	memset(&c, 0, sizeof(c));
	c.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_RSS_VI_CONFIG_CMD) |
				   F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
				   V_FW_RSS_VI_CONFIG_CMD_VIID(viid));
	c.retval_len16 = cpu_to_be32(FW_LEN16(c));
	c.u.basicvirtual.defaultq_to_udpen = cpu_to_be32(flags |
					V_FW_RSS_VI_CONFIG_CMD_DEFAULTQ(defq));
	c.u.basicvirtual.secretkeyidx_pkd = cpu_to_be32(
					V_FW_RSS_VI_CONFIG_CMD_SECRETKEYIDX(skeyidx));
	c.u.basicvirtual.secretkeyxor = cpu_to_be32(skey);

	return t4_wr_mbox(adapter, mbox, &c, sizeof(c), NULL);
}

/* Read an RSS table row */
static int rd_rss_row(struct adapter *adap, int row, u32 *val)
{
	t4_write_reg(adap, A_TP_RSS_LKP_TABLE, 0xfff00000 | row);
	return t4_wait_op_done_val(adap, A_TP_RSS_LKP_TABLE, F_LKPTBLROWVLD, 1,
				   5, 0, val);
}

/**
 *	t4_read_rss - read the contents of the RSS mapping table
 *	@adapter: the adapter
 *	@map: holds the contents of the RSS mapping table
 *
 *	Reads the contents of the RSS hash->queue mapping table.
 */
int t4_read_rss(struct adapter *adapter, u16 *map)
{
	u32 val;
	int i, ret, nentries;

	nentries = t4_chip_rss_size(adapter);
	for (i = 0; i < nentries / 2; ++i) {
		ret = rd_rss_row(adapter, i, &val);
		if (ret)
			return ret;
		*map++ = G_LKPTBLQUEUE0(val);
		*map++ = G_LKPTBLQUEUE1(val);
	}
	return 0;
}

/**
 * t4_tp_fw_ldst_rw - Access TP indirect register through LDST
 * @adap: the adapter
 * @cmd: TP fw ldst address space type
 * @vals: where the indirect register values are stored/written
 * @nregs: how many indirect registers to read/write
 * @start_idx: index of first indirect register to read/write
 * @rw: Read (1) or Write (0)
 * @sleep_ok: if true we may sleep while awaiting command completion
 *
 * Access TP indirect registers through LDST
 **/
static int t4_tp_fw_ldst_rw(struct adapter *adap, int cmd, u32 *vals,
			    unsigned int nregs, unsigned int start_index,
			    unsigned int rw, bool sleep_ok)
{
	int ret = 0;
	unsigned int i;
	struct fw_ldst_cmd c;

	for (i = 0; i < nregs; i++) {
		memset(&c, 0, sizeof(c));
		c.op_to_addrspace = cpu_to_be32(V_FW_CMD_OP(FW_LDST_CMD) |
						F_FW_CMD_REQUEST |
						(rw ? F_FW_CMD_READ :
						      F_FW_CMD_WRITE) |
						V_FW_LDST_CMD_ADDRSPACE(cmd));
		c.cycles_to_len16 = cpu_to_be32(FW_LEN16(c));

		c.u.addrval.addr = cpu_to_be32(start_index + i);
		c.u.addrval.val  = rw ? 0 : cpu_to_be32(vals[i]);
		ret = t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c,
				      sleep_ok);
		if (ret)
			return ret;

		if (rw)
			vals[i] = be32_to_cpu(c.u.addrval.val);
	}
	return 0;
}

/**
 * t4_tp_indirect_rw - Read/Write TP indirect register through LDST or backdoor
 * @adap: the adapter
 * @reg_addr: Address Register
 * @reg_data: Data register
 * @buff: where the indirect register values are stored/written
 * @nregs: how many indirect registers to read/write
 * @start_index: index of first indirect register to read/write
 * @rw: READ(1) or WRITE(0)
 * @sleep_ok: if true we may sleep while awaiting command completion
 *
 * Read/Write TP indirect registers through LDST if possible.
 * Else, use backdoor access
 **/
static void t4_tp_indirect_rw(struct adapter *adap, u32 reg_addr, u32 reg_data,
			      u32 *buff, u32 nregs, u32 start_index, int rw,
			      bool sleep_ok)
{
	int rc = -EINVAL;
	int cmd;

	switch (reg_addr) {
	case A_TP_PIO_ADDR:
		cmd = FW_LDST_ADDRSPC_TP_PIO;
		break;
	case A_TP_TM_PIO_ADDR:
		cmd = FW_LDST_ADDRSPC_TP_TM_PIO;
		break;
	case A_TP_MIB_INDEX:
		cmd = FW_LDST_ADDRSPC_TP_MIB;
		break;
	default:
		goto indirect_access;
	}

	if (t4_use_ldst(adap))
		rc = t4_tp_fw_ldst_rw(adap, cmd, buff, nregs, start_index, rw,
				      sleep_ok);

indirect_access:

	if (rc) {
		if (rw)
			t4_read_indirect(adap, reg_addr, reg_data, buff, nregs,
					 start_index);
		else
			t4_write_indirect(adap, reg_addr, reg_data, buff, nregs,
					  start_index);
	}
}

/**
 * t4_tp_pio_read - Read TP PIO registers
 * @adap: the adapter
 * @buff: where the indirect register values are written
 * @nregs: how many indirect registers to read
 * @start_index: index of first indirect register to read
 * @sleep_ok: if true we may sleep while awaiting command completion
 *
 * Read TP PIO Registers
 **/
void t4_tp_pio_read(struct adapter *adap, u32 *buff, u32 nregs,
		    u32 start_index, bool sleep_ok)
{
	t4_tp_indirect_rw(adap, A_TP_PIO_ADDR, A_TP_PIO_DATA, buff, nregs,
			  start_index, 1, sleep_ok);
}

/**
 * t4_tp_pio_write - Write TP PIO registers
 * @adap: the adapter
 * @buff: where the indirect register values are stored
 * @nregs: how many indirect registers to write
 * @start_index: index of first indirect register to write
 * @sleep_ok: if true we may sleep while awaiting command completion
 *
 * Write TP PIO Registers
 **/
void t4_tp_pio_write(struct adapter *adap, u32 *buff, u32 nregs,
		     u32 start_index, bool sleep_ok)
{
	t4_tp_indirect_rw(adap, A_TP_PIO_ADDR, A_TP_PIO_DATA, buff, nregs,
			  start_index, 0, sleep_ok);
}

/**
 * t4_tp_tm_pio_read - Read TP TM PIO registers
 * @adap: the adapter
 * @buff: where the indirect register values are written
 * @nregs: how many indirect registers to read
 * @start_index: index of first indirect register to read
 * @sleep_ok: if true we may sleep while awaiting command completion
 *
 * Read TP TM PIO Registers
 **/
void t4_tp_tm_pio_read(struct adapter *adap, u32 *buff, u32 nregs,
		       u32 start_index, bool sleep_ok)
{
	t4_tp_indirect_rw(adap, A_TP_TM_PIO_ADDR, A_TP_TM_PIO_DATA, buff,
			  nregs, start_index, 1, sleep_ok);
}

/**
 * t4_tp_mib_read - Read TP MIB registers
 * @adap: the adapter
 * @buff: where the indirect register values are written
 * @nregs: how many indirect registers to read
 * @start_index: index of first indirect register to read
 * @sleep_ok: if true we may sleep while awaiting command completion
 *
 * Read TP MIB Registers
 **/
void t4_tp_mib_read(struct adapter *adap, u32 *buff, u32 nregs, u32 start_index,
		    bool sleep_ok)
{
	t4_tp_indirect_rw(adap, A_TP_MIB_INDEX, A_TP_MIB_DATA, buff, nregs,
			  start_index, 1, sleep_ok);
}

/**
 *	t4_read_rss_key - read the global RSS key
 *	@adap: the adapter
 *	@key: 10-entry array holding the 320-bit RSS key
 * 	@sleep_ok: if true we may sleep while awaiting command completion
 *
 *	Reads the global 320-bit RSS key.
 */
void t4_read_rss_key(struct adapter *adap, u32 *key, bool sleep_ok)
{
	t4_tp_pio_read(adap, key, 10, A_TP_RSS_SECRET_KEY0, sleep_ok);
}

/**
 *	t4_write_rss_key - program one of the RSS keys
 *	@adap: the adapter
 *	@key: 10-entry array holding the 320-bit RSS key
 *	@idx: which RSS key to write
 * 	@sleep_ok: if true we may sleep while awaiting command completion
 *
 *	Writes one of the RSS keys with the given 320-bit value.  If @idx is
 *	0..15 the corresponding entry in the RSS key table is written,
 *	otherwise the global RSS key is written.
 */
void t4_write_rss_key(struct adapter *adap, const u32 *key, int idx,
		      bool sleep_ok)
{
	u8 rss_key_addr_cnt = 16;
	u32 vrt = t4_read_reg(adap, A_TP_RSS_CONFIG_VRT);

	/* T6 and later: for KeyMode 3 (per-vf and per-vf scramble),
	 * allows access to key addresses 16-63 by using KeyWrAddrX
	 * as index[5:4](upper 2) into key table
	 */
	if ((CHELSIO_CHIP_VERSION(adap->params.chip) > CHELSIO_T5) &&
	    (vrt & F_KEYEXTEND) && (G_KEYMODE(vrt) == 3))
		rss_key_addr_cnt = 32;

	t4_tp_pio_write(adap, (void *)key, 10, A_TP_RSS_SECRET_KEY0, sleep_ok);

	if (idx >= 0 && idx < rss_key_addr_cnt) {
		if (rss_key_addr_cnt > 16)
			t4_write_reg(adap, A_TP_RSS_CONFIG_VRT,
				     vrt | V_KEYWRADDRX(idx >> 4) |
				     V_T6_VFWRADDR(idx) | F_KEYWREN);
		else
			t4_write_reg(adap, A_TP_RSS_CONFIG_VRT,
				     vrt| V_KEYWRADDR(idx) | F_KEYWREN);
	}
}

/**
 *	t4_read_rss_pf_config - read PF RSS Configuration Table
 *	@adapter: the adapter
 *	@index: the entry in the PF RSS table to read
 *	@valp: where to store the returned value
 * 	@sleep_ok: if true we may sleep while awaiting command completion
 *
 *	Reads the PF RSS Configuration Table at the specified index and returns
 *	the value found there.
 */
void t4_read_rss_pf_config(struct adapter *adapter, unsigned int index,
			   u32 *valp, bool sleep_ok)
{
	t4_tp_pio_read(adapter, valp, 1, A_TP_RSS_PF0_CONFIG + index, sleep_ok);
}

/**
 *	t4_write_rss_pf_config - write PF RSS Configuration Table
 *	@adapter: the adapter
 *	@index: the entry in the VF RSS table to read
 *	@val: the value to store
 * 	@sleep_ok: if true we may sleep while awaiting command completion
 *
 *	Writes the PF RSS Configuration Table at the specified index with the
 *	specified value.
 */
void t4_write_rss_pf_config(struct adapter *adapter, unsigned int index,
			    u32 val, bool sleep_ok)
{
	t4_tp_pio_write(adapter, &val, 1, A_TP_RSS_PF0_CONFIG + index,
			sleep_ok);
}

/**
 *	t4_read_rss_vf_config - read VF RSS Configuration Table
 *	@adapter: the adapter
 *	@index: the entry in the VF RSS table to read
 *	@vfl: where to store the returned VFL
 *	@vfh: where to store the returned VFH
 * 	@sleep_ok: if true we may sleep while awaiting command completion
 *
 *	Reads the VF RSS Configuration Table at the specified index and returns
 *	the (VFL, VFH) values found there.
 */
void t4_read_rss_vf_config(struct adapter *adapter, unsigned int index,
			   u32 *vfl, u32 *vfh, bool sleep_ok)
{
	u32 vrt, mask, data;

	if (CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5) {
		mask = V_VFWRADDR(M_VFWRADDR);
		data = V_VFWRADDR(index);
	} else {
		 mask =  V_T6_VFWRADDR(M_T6_VFWRADDR);
		 data = V_T6_VFWRADDR(index);
	}
	/*
	 * Request that the index'th VF Table values be read into VFL/VFH.
	 */
	vrt = t4_read_reg(adapter, A_TP_RSS_CONFIG_VRT);
	vrt &= ~(F_VFRDRG | F_VFWREN | F_KEYWREN | mask);
	vrt |= data | F_VFRDEN;
	t4_write_reg(adapter, A_TP_RSS_CONFIG_VRT, vrt);

	/*
	 * Grab the VFL/VFH values ...
	 */
	t4_tp_pio_read(adapter, vfl, 1, A_TP_RSS_VFL_CONFIG, sleep_ok);
	t4_tp_pio_read(adapter, vfh, 1, A_TP_RSS_VFH_CONFIG, sleep_ok);
}

/**
 *	t4_read_rss_pf_map - read PF RSS Map
 *	@adapter: the adapter
 * 	@sleep_ok: if true we may sleep while awaiting command completion
 *
 *	Reads the PF RSS Map register and returns its value.
 */
u32 t4_read_rss_pf_map(struct adapter *adapter, bool sleep_ok)
{
	u32 pfmap;

	t4_tp_pio_read(adapter, &pfmap, 1, A_TP_RSS_PF_MAP, sleep_ok);

	return pfmap;
}

/**
 *	t4_read_rss_pf_mask - read PF RSS Mask
 *	@adapter: the adapter
 * 	@sleep_ok: if true we may sleep while awaiting command completion
 *
 *	Reads the PF RSS Mask register and returns its value.
 */
u32 t4_read_rss_pf_mask(struct adapter *adapter, bool sleep_ok)
{
	u32 pfmask;

	t4_tp_pio_read(adapter, &pfmask, 1, A_TP_RSS_PF_MSK, sleep_ok);

	return pfmask;
}

/**
 *	t4_tp_get_tcp_stats - read TP's TCP MIB counters
 *	@adap: the adapter
 *	@v4: holds the TCP/IP counter values
 *	@v6: holds the TCP/IPv6 counter values
 * 	@sleep_ok: if true we may sleep while awaiting command completion
 *
 *	Returns the values of TP's TCP/IP and TCP/IPv6 MIB counters.
 *	Either @v4 or @v6 may be %NULL to skip the corresponding stats.
 */
void t4_tp_get_tcp_stats(struct adapter *adap, struct tp_tcp_stats *v4,
			 struct tp_tcp_stats *v6, bool sleep_ok)
{
	u32 val[A_TP_MIB_TCP_RXT_SEG_LO - A_TP_MIB_TCP_OUT_RST + 1];

#define STAT_IDX(x) ((A_TP_MIB_TCP_##x) - A_TP_MIB_TCP_OUT_RST)
#define STAT(x)     val[STAT_IDX(x)]
#define STAT64(x)   (((u64)STAT(x##_HI) << 32) | STAT(x##_LO))

	if (v4) {
		t4_tp_mib_read(adap, val, ARRAY_SIZE(val),
			       A_TP_MIB_TCP_OUT_RST, sleep_ok);
		v4->tcp_out_rsts = STAT(OUT_RST);
		v4->tcp_in_segs  = STAT64(IN_SEG);
		v4->tcp_out_segs = STAT64(OUT_SEG);
		v4->tcp_retrans_segs = STAT64(RXT_SEG);
	}
	if (v6) {
		t4_tp_mib_read(adap, val, ARRAY_SIZE(val),
			       A_TP_MIB_TCP_V6OUT_RST, sleep_ok);
		v6->tcp_out_rsts = STAT(OUT_RST);
		v6->tcp_in_segs  = STAT64(IN_SEG);
		v6->tcp_out_segs = STAT64(OUT_SEG);
		v6->tcp_retrans_segs = STAT64(RXT_SEG);
	}
#undef STAT64
#undef STAT
#undef STAT_IDX
}

/**
 *	t4_tp_get_err_stats - read TP's error MIB counters
 *	@adap: the adapter
 *	@st: holds the counter values
 * 	@sleep_ok: if true we may sleep while awaiting command completion
 *
 *	Returns the values of TP's error counters.
 */
void t4_tp_get_err_stats(struct adapter *adap, struct tp_err_stats *st,
			 bool sleep_ok)
{
	int nchan = adap->params.arch.nchan;

	t4_tp_mib_read(adap, st->mac_in_errs, nchan, A_TP_MIB_MAC_IN_ERR_0,
		       sleep_ok);

	t4_tp_mib_read(adap, st->hdr_in_errs, nchan, A_TP_MIB_HDR_IN_ERR_0,
		       sleep_ok);

	t4_tp_mib_read(adap, st->tcp_in_errs, nchan, A_TP_MIB_TCP_IN_ERR_0,
		       sleep_ok);

	t4_tp_mib_read(adap, st->tnl_cong_drops, nchan,
		       A_TP_MIB_TNL_CNG_DROP_0, sleep_ok);

	t4_tp_mib_read(adap, st->ofld_chan_drops, nchan,
		       A_TP_MIB_OFD_CHN_DROP_0, sleep_ok);

	t4_tp_mib_read(adap, st->tnl_tx_drops, nchan, A_TP_MIB_TNL_DROP_0,
		       sleep_ok);

	t4_tp_mib_read(adap, st->ofld_vlan_drops, nchan,
		       A_TP_MIB_OFD_VLN_DROP_0, sleep_ok);

	t4_tp_mib_read(adap, st->tcp6_in_errs, nchan,
		       A_TP_MIB_TCP_V6IN_ERR_0, sleep_ok);

	t4_tp_mib_read(adap, &st->ofld_no_neigh, 2, A_TP_MIB_OFD_ARP_DROP,
		       sleep_ok);
}

/**
 *	t4_tp_get_cpl_stats - read TP's CPL MIB counters
 *	@adap: the adapter
 *	@st: holds the counter values
 * 	@sleep_ok: if true we may sleep while awaiting command completion
 *
 *	Returns the values of TP's CPL counters.
 */
void t4_tp_get_cpl_stats(struct adapter *adap, struct tp_cpl_stats *st,
			 bool sleep_ok)
{
	int nchan = adap->params.arch.nchan;

	t4_tp_mib_read(adap, st->req, nchan, A_TP_MIB_CPL_IN_REQ_0, sleep_ok);

	t4_tp_mib_read(adap, st->rsp, nchan, A_TP_MIB_CPL_OUT_RSP_0, sleep_ok);
}

/**
 *	t4_tp_get_rdma_stats - read TP's RDMA MIB counters
 *	@adap: the adapter
 *	@st: holds the counter values
 *
 *	Returns the values of TP's RDMA counters.
 */
void t4_tp_get_rdma_stats(struct adapter *adap, struct tp_rdma_stats *st,
			  bool sleep_ok)
{
	t4_tp_mib_read(adap, &st->rqe_dfr_pkt, 2, A_TP_MIB_RQE_DFR_PKT,
		       sleep_ok);
}

/**
 *	t4_get_fcoe_stats - read TP's FCoE MIB counters for a port
 *	@adap: the adapter
 *	@idx: the port index
 *	@st: holds the counter values
 * 	@sleep_ok: if true we may sleep while awaiting command completion
 *
 *	Returns the values of TP's FCoE counters for the selected port.
 */
void t4_get_fcoe_stats(struct adapter *adap, unsigned int idx,
		       struct tp_fcoe_stats *st, bool sleep_ok)
{
	u32 val[2];

	t4_tp_mib_read(adap, &st->frames_ddp, 1, A_TP_MIB_FCOE_DDP_0 + idx,
		       sleep_ok);

	t4_tp_mib_read(adap, &st->frames_drop, 1,
		       A_TP_MIB_FCOE_DROP_0 + idx, sleep_ok);

	t4_tp_mib_read(adap, val, 2, A_TP_MIB_FCOE_BYTE_0_HI + 2 * idx,
		       sleep_ok);

	st->octets_ddp = ((u64)val[0] << 32) | val[1];
}

/**
 *	t4_get_usm_stats - read TP's non-TCP DDP MIB counters
 *	@adap: the adapter
 *	@st: holds the counter values
 * 	@sleep_ok: if true we may sleep while awaiting command completion
 *
 *	Returns the values of TP's counters for non-TCP directly-placed packets.
 */
void t4_get_usm_stats(struct adapter *adap, struct tp_usm_stats *st,
		      bool sleep_ok)
{
	u32 val[4];

	t4_tp_mib_read(adap, val, 4, A_TP_MIB_USM_PKTS, sleep_ok);

	st->frames = val[0];
	st->drops = val[1];
	st->octets = ((u64)val[2] << 32) | val[3];
}

/**
 *	t4_read_mtu_tbl - returns the values in the HW path MTU table
 *	@adap: the adapter
 *	@mtus: where to store the MTU values
 *	@mtu_log: where to store the MTU base-2 log (may be %NULL)
 *
 *	Reads the HW path MTU table.
 */
void t4_read_mtu_tbl(struct adapter *adap, u16 *mtus, u8 *mtu_log)
{
	u32 v;
	int i;

	for (i = 0; i < NMTUS; ++i) {
		t4_write_reg(adap, A_TP_MTU_TABLE,
			     V_MTUINDEX(0xffU) | V_MTUVALUE(i));
		v = t4_read_reg(adap, A_TP_MTU_TABLE);
		mtus[i] = G_MTUVALUE(v);
		if (mtu_log)
			mtu_log[i] = G_MTUWIDTH(v);
	}
}

/**
 *	t4_read_cong_tbl - reads the congestion control table
 *	@adap: the adapter
 *	@incr: where to store the alpha values
 *
 *	Reads the additive increments programmed into the HW congestion
 *	control table.
 */
void t4_read_cong_tbl(struct adapter *adap, u16 incr[NMTUS][NCCTRL_WIN])
{
	unsigned int mtu, w;

	for (mtu = 0; mtu < NMTUS; ++mtu)
		for (w = 0; w < NCCTRL_WIN; ++w) {
			t4_write_reg(adap, A_TP_CCTRL_TABLE,
				     V_ROWINDEX(0xffffU) | (mtu << 5) | w);
			incr[mtu][w] = (u16)t4_read_reg(adap,
						A_TP_CCTRL_TABLE) & 0x1fff;
		}
}

/**
 *	t4_tp_wr_bits_indirect - set/clear bits in an indirect TP register
 *	@adap: the adapter
 *	@addr: the indirect TP register address
 *	@mask: specifies the field within the register to modify
 *	@val: new value for the field
 *
 *	Sets a field of an indirect TP register to the given value.
 */
void t4_tp_wr_bits_indirect(struct adapter *adap, unsigned int addr,
			    unsigned int mask, unsigned int val)
{
	t4_write_reg(adap, A_TP_PIO_ADDR, addr);
	val |= t4_read_reg(adap, A_TP_PIO_DATA) & ~mask;
	t4_write_reg(adap, A_TP_PIO_DATA, val);
}

/**
 *	init_cong_ctrl - initialize congestion control parameters
 *	@a: the alpha values for congestion control
 *	@b: the beta values for congestion control
 *
 *	Initialize the congestion control parameters.
 */
static void init_cong_ctrl(unsigned short *a, unsigned short *b)
{
	a[0] = a[1] = a[2] = a[3] = a[4] = a[5] = a[6] = a[7] = a[8] = 1;
	a[9] = 2;
	a[10] = 3;
	a[11] = 4;
	a[12] = 5;
	a[13] = 6;
	a[14] = 7;
	a[15] = 8;
	a[16] = 9;
	a[17] = 10;
	a[18] = 14;
	a[19] = 17;
	a[20] = 21;
	a[21] = 25;
	a[22] = 30;
	a[23] = 35;
	a[24] = 45;
	a[25] = 60;
	a[26] = 80;
	a[27] = 100;
	a[28] = 200;
	a[29] = 300;
	a[30] = 400;
	a[31] = 500;

	b[0] = b[1] = b[2] = b[3] = b[4] = b[5] = b[6] = b[7] = b[8] = 0;
	b[9] = b[10] = 1;
	b[11] = b[12] = 2;
	b[13] = b[14] = b[15] = b[16] = 3;
	b[17] = b[18] = b[19] = b[20] = b[21] = 4;
	b[22] = b[23] = b[24] = b[25] = b[26] = b[27] = 5;
	b[28] = b[29] = 6;
	b[30] = b[31] = 7;
}

/* The minimum additive increment value for the congestion control table */
#define CC_MIN_INCR 2U

/**
 *	t4_load_mtus - write the MTU and congestion control HW tables
 *	@adap: the adapter
 *	@mtus: the values for the MTU table
 *	@alpha: the values for the congestion control alpha parameter
 *	@beta: the values for the congestion control beta parameter
 *
 *	Write the HW MTU table with the supplied MTUs and the high-speed
 *	congestion control table with the supplied alpha, beta, and MTUs.
 *	We write the two tables together because the additive increments
 *	depend on the MTUs.
 */
void t4_load_mtus(struct adapter *adap, const unsigned short *mtus,
		  const unsigned short *alpha, const unsigned short *beta)
{
	static const unsigned int avg_pkts[NCCTRL_WIN] = {
		2, 6, 10, 14, 20, 28, 40, 56, 80, 112, 160, 224, 320, 448, 640,
		896, 1281, 1792, 2560, 3584, 5120, 7168, 10240, 14336, 20480,
		28672, 40960, 57344, 81920, 114688, 163840, 229376
	};

	unsigned int i, w;

	for (i = 0; i < NMTUS; ++i) {
		unsigned int mtu = mtus[i];
		unsigned int log2 = fls(mtu);

		if (!(mtu & ((1 << log2) >> 2)))     /* round */
			log2--;
		t4_write_reg(adap, A_TP_MTU_TABLE, V_MTUINDEX(i) |
			     V_MTUWIDTH(log2) | V_MTUVALUE(mtu));

		for (w = 0; w < NCCTRL_WIN; ++w) {
			unsigned int inc;

			inc = max(((mtu - 40) * alpha[w]) / avg_pkts[w],
				  CC_MIN_INCR);

			t4_write_reg(adap, A_TP_CCTRL_TABLE, (i << 21) |
				     (w << 16) | (beta[w] << 13) | inc);
		}
	}
}

/*
 * Calculates a rate in bytes/s given the number of 256-byte units per 4K core
 * clocks.  The formula is
 *
 * bytes/s = bytes256 * 256 * ClkFreq / 4096
 *
 * which is equivalent to
 *
 * bytes/s = 62.5 * bytes256 * ClkFreq_ms
 */
static u64 chan_rate(struct adapter *adap, unsigned int bytes256)
{
	u64 v = bytes256 * adap->params.vpd.cclk;

	return v * 62 + v / 2;
}

/**
 *	t4_get_chan_txrate - get the current per channel Tx rates
 *	@adap: the adapter
 *	@nic_rate: rates for NIC traffic
 *	@ofld_rate: rates for offloaded traffic
 *
 *	Return the current Tx rates in bytes/s for NIC and offloaded traffic
 *	for each channel.
 */
void t4_get_chan_txrate(struct adapter *adap, u64 *nic_rate, u64 *ofld_rate)
{
	u32 v;

	v = t4_read_reg(adap, A_TP_TX_TRATE);
	nic_rate[0] = chan_rate(adap, G_TNLRATE0(v));
	nic_rate[1] = chan_rate(adap, G_TNLRATE1(v));
	if (adap->params.arch.nchan == NCHAN) {
		nic_rate[2] = chan_rate(adap, G_TNLRATE2(v));
		nic_rate[3] = chan_rate(adap, G_TNLRATE3(v));
	}

	v = t4_read_reg(adap, A_TP_TX_ORATE);
	ofld_rate[0] = chan_rate(adap, G_OFDRATE0(v));
	ofld_rate[1] = chan_rate(adap, G_OFDRATE1(v));
	if (adap->params.arch.nchan == NCHAN) {
		ofld_rate[2] = chan_rate(adap, G_OFDRATE2(v));
		ofld_rate[3] = chan_rate(adap, G_OFDRATE3(v));
	}
}

/**
 *	t4_set_trace_filter - configure one of the tracing filters
 *	@adap: the adapter
 *	@tp: the desired trace filter parameters
 *	@idx: which filter to configure
 *	@enable: whether to enable or disable the filter
 *
 *	Configures one of the tracing filters available in HW.  If @enable is
 *	%0 @tp is not examined and may be %NULL. The user is responsible to
 *	set the single/multiple trace mode by writing to A_MPS_TRC_CFG register
 *	by using "cxgbtool iface reg reg_addr=val" command. See t4_sniffer/
 *	docs/readme.txt for a complete description of how to setup traceing on
 *	T4.
 */
int t4_set_trace_filter(struct adapter *adap, const struct trace_params *tp, int idx,
			int enable)
{
	int i, ofst = idx * 4;
	u32 data_reg, mask_reg, cfg;

	if (!enable) {
		t4_write_reg(adap, A_MPS_TRC_FILTER_MATCH_CTL_A + ofst, 0);
		return 0;
	}

	/*
	 * TODO - After T4 data book is updated, specify the exact
	 * section below.
	 *
	 * See T4 data book - MPS section for a complete description
	 * of the below if..else handling of A_MPS_TRC_CFG register
	 * value.
	 */
	cfg = t4_read_reg(adap, A_MPS_TRC_CFG);
	if (cfg & F_TRCMULTIFILTER) {
		/*
		 * If multiple tracers are enabled, then maximum
		 * capture size is 2.5KB (FIFO size of a single channel)
		 * minus 2 flits for CPL_TRACE_PKT header.
		 */
		if (tp->snap_len > ((10 * 1024 / 4) - (2 * 8)))
			return -EINVAL;
	}
	else {
		/*
		 * If multiple tracers are disabled, to avoid deadlocks
		 * maximum packet capture size of 9600 bytes is recommended.
		 * Also in this mode, only trace0 can be enabled and running.
		 */
		if (tp->snap_len > 9600 || idx)
			return -EINVAL;
	}

	if (tp->port > (is_t4(adap->params.chip) ? 11 : 19) || tp->invert > 1 ||
	    tp->skip_len > M_TFLENGTH || tp->skip_ofst > M_TFOFFSET ||
	    tp->min_len > M_TFMINPKTSIZE)
		return -EINVAL;

	/* stop the tracer we'll be changing */
	t4_write_reg(adap, A_MPS_TRC_FILTER_MATCH_CTL_A + ofst, 0);

	idx *= (A_MPS_TRC_FILTER1_MATCH - A_MPS_TRC_FILTER0_MATCH);
	data_reg = A_MPS_TRC_FILTER0_MATCH + idx;
	mask_reg = A_MPS_TRC_FILTER0_DONT_CARE + idx;

	for (i = 0; i < TRACE_LEN / 4; i++, data_reg += 4, mask_reg += 4) {
		t4_write_reg(adap, data_reg, tp->data[i]);
		t4_write_reg(adap, mask_reg, ~tp->mask[i]);
	}
	t4_write_reg(adap, A_MPS_TRC_FILTER_MATCH_CTL_B + ofst,
		     V_TFCAPTUREMAX(tp->snap_len) |
		     V_TFMINPKTSIZE(tp->min_len));
	t4_write_reg(adap, A_MPS_TRC_FILTER_MATCH_CTL_A + ofst,
		     V_TFOFFSET(tp->skip_ofst) | V_TFLENGTH(tp->skip_len) |
		     (is_t4(adap->params.chip) ?
		     V_TFPORT(tp->port) | F_TFEN | V_TFINVERTMATCH(tp->invert) :
		     V_T5_TFPORT(tp->port) | F_T5_TFEN |
		     V_T5_TFINVERTMATCH(tp->invert)));

	return 0;
}

/**
 *	t4_get_trace_filter - query one of the tracing filters
 *	@adap: the adapter
 *	@tp: the current trace filter parameters
 *	@idx: which trace filter to query
 *	@enabled: non-zero if the filter is enabled
 *
 *	Returns the current settings of one of the HW tracing filters.
 */
void t4_get_trace_filter(struct adapter *adap, struct trace_params *tp, int idx,
			 int *enabled)
{
	u32 ctla, ctlb;
	int i, ofst = idx * 4;
	u32 data_reg, mask_reg;

	ctla = t4_read_reg(adap, A_MPS_TRC_FILTER_MATCH_CTL_A + ofst);
	ctlb = t4_read_reg(adap, A_MPS_TRC_FILTER_MATCH_CTL_B + ofst);

	if (is_t4(adap->params.chip)) {
		*enabled = !!(ctla & F_TFEN);
		tp->port =  G_TFPORT(ctla);
		tp->invert = !!(ctla & F_TFINVERTMATCH);
	} else {
		*enabled = !!(ctla & F_T5_TFEN);
		tp->port = G_T5_TFPORT(ctla);
		tp->invert = !!(ctla & F_T5_TFINVERTMATCH);
	}
	tp->snap_len = G_TFCAPTUREMAX(ctlb);
	tp->min_len = G_TFMINPKTSIZE(ctlb);
	tp->skip_ofst = G_TFOFFSET(ctla);
	tp->skip_len = G_TFLENGTH(ctla);

	ofst = (A_MPS_TRC_FILTER1_MATCH - A_MPS_TRC_FILTER0_MATCH) * idx;
	data_reg = A_MPS_TRC_FILTER0_MATCH + ofst;
	mask_reg = A_MPS_TRC_FILTER0_DONT_CARE + ofst;

	for (i = 0; i < TRACE_LEN / 4; i++, data_reg += 4, mask_reg += 4) {
		tp->mask[i] = ~t4_read_reg(adap, mask_reg);
		tp->data[i] = t4_read_reg(adap, data_reg) & tp->mask[i];
	}
}

/**
 *	t4_read_tcb - read a hardware TCP Control Block structure
 *	@adap: the adapter
 *	@win: PCI-E Memory Window to use
 *	@tid: the TCB ID
 *	@tcb: the buffer to return the TCB in
 *
 *	Reads the indicated hardware TCP Control Block and returns it in
 *	the supplied buffer.  Returns 0 on success.
 */
int t4_read_tcb(struct adapter *adap, int win, int tid, u32 tcb[TCB_SIZE/4])
{
	u32 tcb_base = t4_read_reg(adap, A_TP_CMM_TCB_BASE);
	u32 tcb_addr = tcb_base + tid * TCB_SIZE;
	__be32 raw_tcb[TCB_SIZE/4];
	int ret, word;

	ret = t4_memory_rw_addr(adap, win,
				tcb_addr, sizeof raw_tcb, raw_tcb,
				T4_MEMORY_READ);
	if (ret)
		return ret;

	for (word = 0; word < 32; word++)
		tcb[word] = be32_to_cpu(raw_tcb[word]);
	return 0;
}

/**
 *	t4_pmtx_get_stats - returns the HW stats from PMTX
 *	@adap: the adapter
 *	@cnt: where to store the count statistics
 *	@cycles: where to store the cycle statistics
 *
 *	Returns performance statistics from PMTX.
 */
void t4_pmtx_get_stats(struct adapter *adap, u32 cnt[], u64 cycles[])
{
	int i;
	u32 data[2];

	for (i = 0; i < adap->params.arch.pm_stats_cnt; i++) {
		t4_write_reg(adap, A_PM_TX_STAT_CONFIG, i + 1);
		cnt[i] = t4_read_reg(adap, A_PM_TX_STAT_COUNT);
		if (is_t4(adap->params.chip)) {
			cycles[i] = t4_read_reg64(adap, A_PM_TX_STAT_LSB);
		} else {
			t4_read_indirect(adap, A_PM_TX_DBG_CTRL,
					 A_PM_TX_DBG_DATA, data, 2,
					 A_PM_TX_DBG_STAT_MSB);
			cycles[i] = (((u64)data[0] << 32) | data[1]);
		}
	}
}

/**
 *	t4_pmrx_get_stats - returns the HW stats from PMRX
 *	@adap: the adapter
 *	@cnt: where to store the count statistics
 *	@cycles: where to store the cycle statistics
 *
 *	Returns performance statistics from PMRX.
 */
void t4_pmrx_get_stats(struct adapter *adap, u32 cnt[], u64 cycles[])
{
	int i;
	u32 data[2];

	for (i = 0; i < adap->params.arch.pm_stats_cnt; i++) {
		t4_write_reg(adap, A_PM_RX_STAT_CONFIG, i + 1);
		cnt[i] = t4_read_reg(adap, A_PM_RX_STAT_COUNT);
		if (is_t4(adap->params.chip)) {
			cycles[i] = t4_read_reg64(adap, A_PM_RX_STAT_LSB);
		} else {
			t4_read_indirect(adap, A_PM_RX_DBG_CTRL,
					 A_PM_RX_DBG_DATA, data, 2,
					 A_PM_RX_DBG_STAT_MSB);
			cycles[i] = (((u64)data[0] << 32) | data[1]);
		}
	}
}

/**
 *	compute_mps_bg_map - compute the MPS Buffer Group Map for a Port
 *	@adapter: the adapter
 *	@pidx: the port index
 *
 *	Compuytes and returns a bitmap indicating which MPS buffer groups are
 *	associated with the given Port.  Bit i is set if buffer group i is
 *	used by the Port.
 */
static inline unsigned int compute_mps_bg_map(struct adapter *adapter,
					      int pidx)
{
	unsigned int chip_version, nports;

	chip_version = CHELSIO_CHIP_VERSION(adapter->params.chip);
	nports = 1 << G_NUMPORTS(t4_read_reg(adapter, A_MPS_CMN_CTL));

	switch (chip_version) {
	case CHELSIO_T4:
	case CHELSIO_T5:
		switch (nports) {
		case 1: return 0xf;
		case 2: return 3 << (2 * pidx);
		case 4: return 1 << pidx;
		}
		break;

	case CHELSIO_T6:
		switch (nports) {
		case 2: return 1 << (2 * pidx);
		}
		break;
	}

	CH_ERR(adapter, "Need MPS Buffer Group Map for Chip %0x, Nports %d\n",
	       chip_version, nports);

	return 0;
}

/**
 *	t4_get_mps_bg_map - return the buffer groups associated with a port
 *	@adapter: the adapter
 *	@pidx: the port index
 *
 *	Returns a bitmap indicating which MPS buffer groups are associated
 *	with the given Port.  Bit i is set if buffer group i is used by the
 *	Port.
 */
unsigned int t4_get_mps_bg_map(struct adapter *adapter, int pidx)
{
	u8 *mps_bg_map;
	unsigned int nports;

	nports = 1 << G_NUMPORTS(t4_read_reg(adapter, A_MPS_CMN_CTL));
	if (pidx >= nports) {
		CH_WARN(adapter, "MPS Port Index %d >= Nports %d\n", pidx, nports);
		return 0;
	}

	/* If we've already retrieved/computed this, just return the result.
	 */
	mps_bg_map = adapter->params.mps_bg_map;
	if (mps_bg_map[pidx])
		return mps_bg_map[pidx];

	/* Newer Firmware can tell us what the MPS Buffer Group Map is.
	 * If we're talking to such Firmware, let it tell us.  If the new
	 * API isn't supported, revert back to old hardcoded way.  The value
	 * obtained from Firmware is encoded in below format:
	 *
	 * val = (( MPSBGMAP[Port 3] << 24 ) |
	 *        ( MPSBGMAP[Port 2] << 16 ) |
	 *        ( MPSBGMAP[Port 1] <<  8 ) |
	 *        ( MPSBGMAP[Port 0] <<  0 ))
	 */
	if (adapter->flags & FW_OK) {
		u32 param, val;
		int ret;

		param = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
			 V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_MPSBGMAP));
		ret = t4_query_params_ns(adapter, adapter->mbox, adapter->pf,
					 0, 1, &param, &val);
		if (!ret) {
			int p;

			/* Store the BG Map for all of the Ports in order to
			 * avoid more calls to the Firmware in the future.
			 */
			for (p = 0; p < MAX_NPORTS; p++, val >>= 8)
				mps_bg_map[p] = val & 0xff;

			return mps_bg_map[pidx];
		}
	}

	/* Either we're not talking to the Firmware or we're dealing with
	 * older Firmware which doesn't support the new API to get the MPS
	 * Buffer Group Map.  Fall back to computing it ourselves.
	 */
	mps_bg_map[pidx] = compute_mps_bg_map(adapter, pidx);
	return mps_bg_map[pidx];
}

/**
 *      t4_get_tp_e2c_map - return the E2C channel map associated with a port
 *      @adapter: the adapter
 *      @pidx: the port index
 */
unsigned int t4_get_tp_e2c_map(struct adapter *adapter, int pidx)
{
	unsigned int nports = 1 << G_NUMPORTS(t4_read_reg(adapter, A_MPS_CMN_CTL));
	u32 param, val = 0;
	int ret;

	if (pidx >= nports) {
		CH_WARN(adapter, "TP E2C Channel Port Index %d >= Nports %d\n", pidx, nports);
		return 0;
	}

	/* FW version >= 1.16.44.0 can determine E2C channel map using
	 * FW_PARAMS_PARAM_DEV_TPCHMAP API.
	 */
	param = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
		 V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_TPCHMAP));
	ret = t4_query_params_ns(adapter, adapter->mbox, adapter->pf,
					 0, 1, &param, &val);
	if (!ret)
		return (val >> (8*pidx)) & 0xff;

	return 0;
}

/**
 *	t4_get_tp_ch_map - return TP ingress channels associated with a port
 *	@adapter: the adapter
 *	@pidx: the port index
 *
 *	Returns a bitmap indicating which TP Ingress Channels are associated with
 *	a given Port.  Bit i is set if TP Ingress Channel i is used by the Port.
 */
unsigned int t4_get_tp_ch_map(struct adapter *adapter, int pidx)
{
	unsigned int chip_version = CHELSIO_CHIP_VERSION(adapter->params.chip);
	unsigned int nports = 1 << G_NUMPORTS(t4_read_reg(adapter, A_MPS_CMN_CTL));

	if (pidx >= nports) {
		CH_WARN(adapter, "TP Port Index %d >= Nports %d\n", pidx, nports);
		return 0;
	}

	switch (chip_version) {
	case CHELSIO_T4:
	case CHELSIO_T5:
		/*
		 * Note that this happens to be the same values as the MPS
		 * Buffer Group Map for these Chips.  But we replicate the code
		 * here because they're really separate concepts.
		 */
		switch (nports) {
		case 1: return 0xf;
		case 2: return 3 << (2 * pidx);
		case 4: return 1 << pidx;
		}
		break;

	case CHELSIO_T6:
		switch (nports) {
		case 1: return 1 << pidx;
		case 2: return 1 << pidx;
		}
		break;
	}

	CH_ERR(adapter, "Need TP Channel Map for Chip %0x, Nports %d\n",
	       chip_version, nports);
	return 0;
}

/**
 *      t4_get_port_type_description - return Port Type string description
 *      @port_type: firmware Port Type enumeration
 */
const char *t4_get_port_type_description(enum fw_port_type port_type)
{
	static const char *const port_type_description[] = {
		"Fiber_XFI",
		"Fiber_XAUI",
		"BT_SGMII",
		"BT_XFI",
		"BT_XAUI",
		"KX4",
		"CX4",
		"KX",
		"KR",
		"SFP",
		"BP_AP",
		"BP4_AP",
		"QSFP_10G",
		"QSA",
		"QSFP",
		"BP40_BA",
		"KR4_100G",
		"CR4_QSFP",
		"CR_QSFP",
		"CR2_QSFP",
		"SFP28",
		"KR_SFP28",
		"KR_XLAUI",
	};

	if (port_type < ARRAY_SIZE(port_type_description))
		return port_type_description[port_type];
	return "UNKNOWN";
}

/**
 *      t4_get_port_stats_offset - collect port stats relative to a previous
 *				   snapshot
 *      @adap: The adapter
 *      @idx: The port
 *      @stats: Current stats to fill
 *      @offset: Previous stats snapshot
 */
void t4_get_port_stats_offset(struct adapter *adap, int idx,
		struct port_stats *stats,
		struct port_stats *offset)
{
	u64 *s, *o;
	int i;

	t4_get_port_stats(adap, idx, stats);
	for (i = 0, s = (u64 *)stats, o = (u64 *)offset ;
			i < (sizeof(struct port_stats)/sizeof(u64)) ;
			i++, s++, o++)
		*s -= *o;
}

/**
 *	t4_get_port_stats - collect port statistics
 *	@adap: the adapter
 *	@idx: the port index
 *	@p: the stats structure to fill
 *
 *	Collect statistics related to the given port from HW.
 */
void t4_get_port_stats(struct adapter *adap, int idx, struct port_stats *p)
{
	u32 bgmap = t4_get_mps_bg_map(adap, idx);
	u32 stat_ctl = t4_read_reg(adap, A_MPS_STAT_CTL);

#define GET_STAT(name) \
	t4_read_reg64(adap, \
	(is_t4(adap->params.chip) ? PORT_REG(idx, A_MPS_PORT_STAT_##name##_L) : \
	T5_PORT_REG(idx, A_MPS_PORT_STAT_##name##_L)))
#define GET_STAT_COM(name) t4_read_reg64(adap, A_MPS_STAT_##name##_L)

	p->tx_octets		= GET_STAT(TX_PORT_BYTES);
	p->tx_frames		= GET_STAT(TX_PORT_FRAMES);
	p->tx_bcast_frames	= GET_STAT(TX_PORT_BCAST);
	p->tx_mcast_frames	= GET_STAT(TX_PORT_MCAST);
	p->tx_ucast_frames	= GET_STAT(TX_PORT_UCAST);
	p->tx_error_frames	= GET_STAT(TX_PORT_ERROR);
	p->tx_frames_64		= GET_STAT(TX_PORT_64B);
	p->tx_frames_65_127	= GET_STAT(TX_PORT_65B_127B);
	p->tx_frames_128_255	= GET_STAT(TX_PORT_128B_255B);
	p->tx_frames_256_511	= GET_STAT(TX_PORT_256B_511B);
	p->tx_frames_512_1023	= GET_STAT(TX_PORT_512B_1023B);
	p->tx_frames_1024_1518	= GET_STAT(TX_PORT_1024B_1518B);
	p->tx_frames_1519_max	= GET_STAT(TX_PORT_1519B_MAX);
	p->tx_drop		= GET_STAT(TX_PORT_DROP);
	p->tx_pause		= GET_STAT(TX_PORT_PAUSE);
	p->tx_ppp0		= GET_STAT(TX_PORT_PPP0);
	p->tx_ppp1		= GET_STAT(TX_PORT_PPP1);
	p->tx_ppp2		= GET_STAT(TX_PORT_PPP2);
	p->tx_ppp3		= GET_STAT(TX_PORT_PPP3);
	p->tx_ppp4		= GET_STAT(TX_PORT_PPP4);
	p->tx_ppp5		= GET_STAT(TX_PORT_PPP5);
	p->tx_ppp6		= GET_STAT(TX_PORT_PPP6);
	p->tx_ppp7		= GET_STAT(TX_PORT_PPP7);

	if (CHELSIO_CHIP_VERSION(adap->params.chip) >= CHELSIO_T5) {
		if (stat_ctl & F_COUNTPAUSESTATTX)
			p->tx_frames_64 -= p->tx_pause;
		if (stat_ctl & F_COUNTPAUSEMCTX)
			p->tx_mcast_frames -= p->tx_pause;
	}

	p->rx_octets		= GET_STAT(RX_PORT_BYTES);
	p->rx_frames		= GET_STAT(RX_PORT_FRAMES);
	p->rx_bcast_frames	= GET_STAT(RX_PORT_BCAST);
	p->rx_mcast_frames	= GET_STAT(RX_PORT_MCAST);
	p->rx_ucast_frames	= GET_STAT(RX_PORT_UCAST);
	p->rx_too_long		= GET_STAT(RX_PORT_MTU_ERROR);
	p->rx_jabber		= GET_STAT(RX_PORT_MTU_CRC_ERROR);
	p->rx_fcs_err		= GET_STAT(RX_PORT_CRC_ERROR);
	p->rx_len_err		= GET_STAT(RX_PORT_LEN_ERROR);
	p->rx_symbol_err	= GET_STAT(RX_PORT_SYM_ERROR);
	p->rx_runt		= GET_STAT(RX_PORT_LESS_64B);
	p->rx_frames_64		= GET_STAT(RX_PORT_64B);
	p->rx_frames_65_127	= GET_STAT(RX_PORT_65B_127B);
	p->rx_frames_128_255	= GET_STAT(RX_PORT_128B_255B);
	p->rx_frames_256_511	= GET_STAT(RX_PORT_256B_511B);
	p->rx_frames_512_1023	= GET_STAT(RX_PORT_512B_1023B);
	p->rx_frames_1024_1518	= GET_STAT(RX_PORT_1024B_1518B);
	p->rx_frames_1519_max	= GET_STAT(RX_PORT_1519B_MAX);
	p->rx_pause		= GET_STAT(RX_PORT_PAUSE);
	p->rx_ppp0		= GET_STAT(RX_PORT_PPP0);
	p->rx_ppp1		= GET_STAT(RX_PORT_PPP1);
	p->rx_ppp2		= GET_STAT(RX_PORT_PPP2);
	p->rx_ppp3		= GET_STAT(RX_PORT_PPP3);
	p->rx_ppp4		= GET_STAT(RX_PORT_PPP4);
	p->rx_ppp5		= GET_STAT(RX_PORT_PPP5);
	p->rx_ppp6		= GET_STAT(RX_PORT_PPP6);
	p->rx_ppp7		= GET_STAT(RX_PORT_PPP7);

	if (CHELSIO_CHIP_VERSION(adap->params.chip) >= CHELSIO_T5) {
		if (stat_ctl & F_COUNTPAUSESTATRX)
			p->rx_frames_64 -= p->rx_pause;
		if (stat_ctl & F_COUNTPAUSEMCRX)
			p->rx_mcast_frames -= p->rx_pause;
	}

	p->rx_ovflow0 = (bgmap & 1) ? GET_STAT_COM(RX_BG_0_MAC_DROP_FRAME) : 0;
	p->rx_ovflow1 = (bgmap & 2) ? GET_STAT_COM(RX_BG_1_MAC_DROP_FRAME) : 0;
	p->rx_ovflow2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_MAC_DROP_FRAME) : 0;
	p->rx_ovflow3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_MAC_DROP_FRAME) : 0;
	p->rx_trunc0 = (bgmap & 1) ? GET_STAT_COM(RX_BG_0_MAC_TRUNC_FRAME) : 0;
	p->rx_trunc1 = (bgmap & 2) ? GET_STAT_COM(RX_BG_1_MAC_TRUNC_FRAME) : 0;
	p->rx_trunc2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_MAC_TRUNC_FRAME) : 0;
	p->rx_trunc3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_MAC_TRUNC_FRAME) : 0;

#undef GET_STAT
#undef GET_STAT_COM
}

/**
 *	t4_get_lb_stats - collect loopback port statistics
 *	@adap: the adapter
 *	@idx: the loopback port index
 *	@p: the stats structure to fill
 *
 *	Return HW statistics for the given loopback port.
 */
void t4_get_lb_stats(struct adapter *adap, int idx, struct lb_port_stats *p)
{
	u32 bgmap = t4_get_mps_bg_map(adap, idx);

#define GET_STAT(name) \
	t4_read_reg64(adap, \
	(is_t4(adap->params.chip) ? \
	PORT_REG(idx, A_MPS_PORT_STAT_LB_PORT_##name##_L) : \
	T5_PORT_REG(idx, A_MPS_PORT_STAT_LB_PORT_##name##_L)))
#define GET_STAT_COM(name) t4_read_reg64(adap, A_MPS_STAT_##name##_L)

	p->octets	= GET_STAT(BYTES);
	p->frames	= GET_STAT(FRAMES);
	p->bcast_frames	= GET_STAT(BCAST);
	p->mcast_frames	= GET_STAT(MCAST);
	p->ucast_frames	= GET_STAT(UCAST);
	p->error_frames	= GET_STAT(ERROR);

	p->frames_64		= GET_STAT(64B);
	p->frames_65_127	= GET_STAT(65B_127B);
	p->frames_128_255	= GET_STAT(128B_255B);
	p->frames_256_511	= GET_STAT(256B_511B);
	p->frames_512_1023	= GET_STAT(512B_1023B);
	p->frames_1024_1518	= GET_STAT(1024B_1518B);
	p->frames_1519_max	= GET_STAT(1519B_MAX);
	p->drop			= GET_STAT(DROP_FRAMES);

	p->ovflow0 = (bgmap & 1) ? GET_STAT_COM(RX_BG_0_LB_DROP_FRAME) : 0;
	p->ovflow1 = (bgmap & 2) ? GET_STAT_COM(RX_BG_1_LB_DROP_FRAME) : 0;
	p->ovflow2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_LB_DROP_FRAME) : 0;
	p->ovflow3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_LB_DROP_FRAME) : 0;
	p->trunc0 = (bgmap & 1) ? GET_STAT_COM(RX_BG_0_LB_TRUNC_FRAME) : 0;
	p->trunc1 = (bgmap & 2) ? GET_STAT_COM(RX_BG_1_LB_TRUNC_FRAME) : 0;
	p->trunc2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_LB_TRUNC_FRAME) : 0;
	p->trunc3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_LB_TRUNC_FRAME) : 0;

#undef GET_STAT
#undef GET_STAT_COM
}

/*	t4_mk_filtdelwr - create a delete filter WR
 *	@ftid: the filter ID
 *	@wr: the filter work request to populate
 *	@rqtype: the filter Request Type: 0 => IPv4, 1 => IPv6
 *	@qid: ingress queue to receive the delete notification
 *
 *	Creates a filter work request to delete the supplied filter.  If @qid
 *	is negative the delete notification is suppressed.
 */
void t4_mk_filtdelwr(unsigned int ftid, struct fw_filter_wr *wr,
		     int rqtype, int qid)
{
	memset(wr, 0, sizeof(*wr));
	wr->op_pkd = cpu_to_be32(V_FW_WR_OP(FW_FILTER_WR));
	wr->len16_pkd = cpu_to_be32(V_FW_WR_LEN16(sizeof(*wr) / 16));
	wr->tid_to_iq = cpu_to_be32(V_FW_FILTER_WR_TID(ftid) |
				    V_FW_FILTER_WR_RQTYPE(rqtype) |
				    V_FW_FILTER_WR_NOREPLY(qid < 0));
	wr->del_filter_to_l2tix = cpu_to_be32(F_FW_FILTER_WR_DEL_FILTER);
	if (qid >= 0)
		wr->rx_chan_rx_rpl_iq =
				cpu_to_be16(V_FW_FILTER_WR_RX_RPL_IQ(qid));
}

#define INIT_CMD(var, cmd, rd_wr) do { \
	(var).op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_##cmd##_CMD) | \
					F_FW_CMD_REQUEST | \
					F_FW_CMD_##rd_wr); \
	(var).retval_len16 = cpu_to_be32(FW_LEN16(var)); \
} while (0)

int t4_fwaddrspace_write(struct adapter *adap, unsigned int mbox,
			  u32 addr, u32 val)
{
	u32 ldst_addrspace;
	struct fw_ldst_cmd c;

	memset(&c, 0, sizeof(c));
	ldst_addrspace = V_FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_FIRMWARE);
	c.op_to_addrspace = cpu_to_be32(V_FW_CMD_OP(FW_LDST_CMD) |
					F_FW_CMD_REQUEST |
					F_FW_CMD_WRITE |
					ldst_addrspace);
	c.cycles_to_len16 = cpu_to_be32(FW_LEN16(c));
	c.u.addrval.addr = cpu_to_be32(addr);
	c.u.addrval.val = cpu_to_be32(val);

	return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}

/**
 *	t4_mdio_rd - read a PHY register through MDIO
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@phy_addr: the PHY address
 *	@mmd: the PHY MMD to access (0 for clause 22 PHYs)
 *	@reg: the register to read
 *	@valp: where to store the value
 *
 *	Issues a FW command through the given mailbox to read a PHY register.
 */
int t4_mdio_rd(struct adapter *adap, unsigned int mbox, unsigned int phy_addr,
	       unsigned int mmd, unsigned int reg, unsigned int *valp)
{
	int ret;
	u32 ldst_addrspace;
	struct fw_ldst_cmd c;

	memset(&c, 0, sizeof(c));
	ldst_addrspace = V_FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_MDIO);
	c.op_to_addrspace = cpu_to_be32(V_FW_CMD_OP(FW_LDST_CMD) |
					F_FW_CMD_REQUEST | F_FW_CMD_READ |
					ldst_addrspace);
	c.cycles_to_len16 = cpu_to_be32(FW_LEN16(c));
	c.u.mdio.paddr_mmd = cpu_to_be16(V_FW_LDST_CMD_PADDR(phy_addr) |
					 V_FW_LDST_CMD_MMD(mmd));
	c.u.mdio.raddr = cpu_to_be16(reg);

	ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
	if (ret == 0)
		*valp = be16_to_cpu(c.u.mdio.rval);
	return ret;
}

/**
 *	t4_mdio_wr - write a PHY register through MDIO
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@phy_addr: the PHY address
 *	@mmd: the PHY MMD to access (0 for clause 22 PHYs)
 *	@reg: the register to write
 *	@valp: value to write
 *
 *	Issues a FW command through the given mailbox to write a PHY register.
 */
int t4_mdio_wr(struct adapter *adap, unsigned int mbox, unsigned int phy_addr,
	       unsigned int mmd, unsigned int reg, unsigned int val)
{
	u32 ldst_addrspace;
	struct fw_ldst_cmd c;

	memset(&c, 0, sizeof(c));
	ldst_addrspace = V_FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_MDIO);
	c.op_to_addrspace = cpu_to_be32(V_FW_CMD_OP(FW_LDST_CMD) |
					F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
					ldst_addrspace);
	c.cycles_to_len16 = cpu_to_be32(FW_LEN16(c));
	c.u.mdio.paddr_mmd = cpu_to_be16(V_FW_LDST_CMD_PADDR(phy_addr) |
					 V_FW_LDST_CMD_MMD(mmd));
	c.u.mdio.raddr = cpu_to_be16(reg);
	c.u.mdio.rval = cpu_to_be16(val);

	return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}

/**
 *
 *	t4_sge_decode_idma_state - decode the idma state
 *	@adap: the adapter
 *	@state: the state idma is stuck in
 */
void t4_sge_decode_idma_state(struct adapter *adapter, int state)
{
	static const char * const t4_decode[] = {
		"IDMA_IDLE",
		"IDMA_PUSH_MORE_CPL_FIFO",
		"IDMA_PUSH_CPL_MSG_HEADER_TO_FIFO",
		"Not used",
		"IDMA_PHYSADDR_SEND_PCIEHDR",
		"IDMA_PHYSADDR_SEND_PAYLOAD_FIRST",
		"IDMA_PHYSADDR_SEND_PAYLOAD",
		"IDMA_SEND_FIFO_TO_IMSG",
		"IDMA_FL_REQ_DATA_FL_PREP",
		"IDMA_FL_REQ_DATA_FL",
		"IDMA_FL_DROP",
		"IDMA_FL_H_REQ_HEADER_FL",
		"IDMA_FL_H_SEND_PCIEHDR",
		"IDMA_FL_H_PUSH_CPL_FIFO",
		"IDMA_FL_H_SEND_CPL",
		"IDMA_FL_H_SEND_IP_HDR_FIRST",
		"IDMA_FL_H_SEND_IP_HDR",
		"IDMA_FL_H_REQ_NEXT_HEADER_FL",
		"IDMA_FL_H_SEND_NEXT_PCIEHDR",
		"IDMA_FL_H_SEND_IP_HDR_PADDING",
		"IDMA_FL_D_SEND_PCIEHDR",
		"IDMA_FL_D_SEND_CPL_AND_IP_HDR",
		"IDMA_FL_D_REQ_NEXT_DATA_FL",
		"IDMA_FL_SEND_PCIEHDR",
		"IDMA_FL_PUSH_CPL_FIFO",
		"IDMA_FL_SEND_CPL",
		"IDMA_FL_SEND_PAYLOAD_FIRST",
		"IDMA_FL_SEND_PAYLOAD",
		"IDMA_FL_REQ_NEXT_DATA_FL",
		"IDMA_FL_SEND_NEXT_PCIEHDR",
		"IDMA_FL_SEND_PADDING",
		"IDMA_FL_SEND_COMPLETION_TO_IMSG",
		"IDMA_FL_SEND_FIFO_TO_IMSG",
		"IDMA_FL_REQ_DATAFL_DONE",
		"IDMA_FL_REQ_HEADERFL_DONE",
	};
	static const char * const t5_decode[] = {
		"IDMA_IDLE",
		"IDMA_ALMOST_IDLE",
		"IDMA_PUSH_MORE_CPL_FIFO",
		"IDMA_PUSH_CPL_MSG_HEADER_TO_FIFO",
		"IDMA_SGEFLRFLUSH_SEND_PCIEHDR",
		"IDMA_PHYSADDR_SEND_PCIEHDR",
		"IDMA_PHYSADDR_SEND_PAYLOAD_FIRST",
		"IDMA_PHYSADDR_SEND_PAYLOAD",
		"IDMA_SEND_FIFO_TO_IMSG",
		"IDMA_FL_REQ_DATA_FL",
		"IDMA_FL_DROP",
		"IDMA_FL_DROP_SEND_INC",
		"IDMA_FL_H_REQ_HEADER_FL",
		"IDMA_FL_H_SEND_PCIEHDR",
		"IDMA_FL_H_PUSH_CPL_FIFO",
		"IDMA_FL_H_SEND_CPL",
		"IDMA_FL_H_SEND_IP_HDR_FIRST",
		"IDMA_FL_H_SEND_IP_HDR",
		"IDMA_FL_H_REQ_NEXT_HEADER_FL",
		"IDMA_FL_H_SEND_NEXT_PCIEHDR",
		"IDMA_FL_H_SEND_IP_HDR_PADDING",
		"IDMA_FL_D_SEND_PCIEHDR",
		"IDMA_FL_D_SEND_CPL_AND_IP_HDR",
		"IDMA_FL_D_REQ_NEXT_DATA_FL",
		"IDMA_FL_SEND_PCIEHDR",
		"IDMA_FL_PUSH_CPL_FIFO",
		"IDMA_FL_SEND_CPL",
		"IDMA_FL_SEND_PAYLOAD_FIRST",
		"IDMA_FL_SEND_PAYLOAD",
		"IDMA_FL_REQ_NEXT_DATA_FL",
		"IDMA_FL_SEND_NEXT_PCIEHDR",
		"IDMA_FL_SEND_PADDING",
		"IDMA_FL_SEND_COMPLETION_TO_IMSG",
	};
	static const char * const t6_decode[] = {
		"IDMA_IDLE",
		"IDMA_PUSH_MORE_CPL_FIFO",
		"IDMA_PUSH_CPL_MSG_HEADER_TO_FIFO",
		"IDMA_SGEFLRFLUSH_SEND_PCIEHDR",
		"IDMA_PHYSADDR_SEND_PCIEHDR",
		"IDMA_PHYSADDR_SEND_PAYLOAD_FIRST",
		"IDMA_PHYSADDR_SEND_PAYLOAD",
		"IDMA_FL_REQ_DATA_FL",
		"IDMA_FL_DROP",
		"IDMA_FL_DROP_SEND_INC",
		"IDMA_FL_H_REQ_HEADER_FL",
		"IDMA_FL_H_SEND_PCIEHDR",
		"IDMA_FL_H_PUSH_CPL_FIFO",
		"IDMA_FL_H_SEND_CPL",
		"IDMA_FL_H_SEND_IP_HDR_FIRST",
		"IDMA_FL_H_SEND_IP_HDR",
		"IDMA_FL_H_REQ_NEXT_HEADER_FL",
		"IDMA_FL_H_SEND_NEXT_PCIEHDR",
		"IDMA_FL_H_SEND_IP_HDR_PADDING",
		"IDMA_FL_D_SEND_PCIEHDR",
		"IDMA_FL_D_SEND_CPL_AND_IP_HDR",
		"IDMA_FL_D_REQ_NEXT_DATA_FL",
		"IDMA_FL_SEND_PCIEHDR",
		"IDMA_FL_PUSH_CPL_FIFO",
		"IDMA_FL_SEND_CPL",
		"IDMA_FL_SEND_PAYLOAD_FIRST",
		"IDMA_FL_SEND_PAYLOAD",
		"IDMA_FL_REQ_NEXT_DATA_FL",
		"IDMA_FL_SEND_NEXT_PCIEHDR",
		"IDMA_FL_SEND_PADDING",
		"IDMA_FL_SEND_COMPLETION_TO_IMSG",
	};
	static const u32 sge_regs[] = {
		A_SGE_DEBUG_DATA_LOW_INDEX_2,
		A_SGE_DEBUG_DATA_LOW_INDEX_3,
		A_SGE_DEBUG_DATA_HIGH_INDEX_10,
	};
	const char **sge_idma_decode;
	int sge_idma_decode_nstates;
	int i;
	unsigned int chip_version = CHELSIO_CHIP_VERSION(adapter->params.chip);

	/* Select the right set of decode strings to dump depending on the
	 * adapter chip type.
	 */
	switch (chip_version) {
	case CHELSIO_T4:
		sge_idma_decode = (const char **)t4_decode;
		sge_idma_decode_nstates = ARRAY_SIZE(t4_decode);
		break;

	case CHELSIO_T5:
		sge_idma_decode = (const char **)t5_decode;
		sge_idma_decode_nstates = ARRAY_SIZE(t5_decode);
		break;

	case CHELSIO_T6:
		sge_idma_decode = (const char **)t6_decode;
		sge_idma_decode_nstates = ARRAY_SIZE(t6_decode);
		break;

	default:
		CH_ERR(adapter,	"Unsupported chip version %d\n", chip_version);
		return;
	}

	if (state < sge_idma_decode_nstates)
		CH_WARN(adapter, "idma state %s\n", sge_idma_decode[state]);
	else
		CH_WARN(adapter, "idma state %d unknown\n", state);

	for (i = 0; i < ARRAY_SIZE(sge_regs); i++)
		CH_WARN(adapter, "SGE register %#x value %#x\n",
			sge_regs[i], t4_read_reg(adapter, sge_regs[i]));
}

/**
 *      t4_sge_ctxt_flush - flush the SGE context cache
 *      @adap: the adapter
 *      @mbox: mailbox to use for the FW command
 *
 *      Issues a FW command through the given mailbox to flush the
 *      SGE context cache.
 */
int t4_sge_ctxt_flush(struct adapter *adap, unsigned int mbox, int ctxt_type)
{
	int ret;
	u32 ldst_addrspace;
	struct fw_ldst_cmd c;

	memset(&c, 0, sizeof(c));
	ldst_addrspace = V_FW_LDST_CMD_ADDRSPACE(ctxt_type == CTXT_EGRESS ?
						 FW_LDST_ADDRSPC_SGE_EGRC :
						 FW_LDST_ADDRSPC_SGE_INGC);
	c.op_to_addrspace = cpu_to_be32(V_FW_CMD_OP(FW_LDST_CMD) |
					F_FW_CMD_REQUEST | F_FW_CMD_READ |
					ldst_addrspace);
	c.cycles_to_len16 = cpu_to_be32(FW_LEN16(c));
	c.u.idctxt.msg_ctxtflush = cpu_to_be32(F_FW_LDST_CMD_CTXTFLUSH);

	ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
	return ret;
}

/**
 *	t4_read_sge_dbqtimers - reag SGE Doorbell Queue Timer values
 *	@adap - the adapter
 *	@ndbqtimers: size of the provided SGE Doorbell Queue Timer table
 *	@dbqtimers: SGE Doorbell Queue Timer table
 *
 *	Reads the SGE Doorbell Queue Timer values into the provided table.
 *	Returns 0 on success (Firmware and Hardware support this feature),
 *	an error on failure.
 */
int t4_read_sge_dbqtimers(struct adapter *adap, unsigned int ndbqtimers,
			  u16 *dbqtimers)
{
	int ret, dbqtimerix;

	ret = 0;
	dbqtimerix = 0;
	while (dbqtimerix < ndbqtimers) {
		int nparams, param;
		u32 params[7], vals[7];

		nparams = ndbqtimers - dbqtimerix;
		if (nparams > ARRAY_SIZE(params))
			nparams = ARRAY_SIZE(params);

		for (param = 0; param < nparams; param++)
			params[param] =
			  (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
			   V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_DBQ_TIMER) |
			   V_FW_PARAMS_PARAM_Y(dbqtimerix + param));
		ret = t4_query_params(adap, adap->mbox, adap->pf, 0,
				      nparams, params, vals);
		if (ret)
			break;

		for (param = 0; param < nparams; param++)
			dbqtimers[dbqtimerix++] = vals[param];
	}
	return ret;
}

/**
 *      t4_fw_hello - establish communication with FW
 *      @adap: the adapter
 *      @mbox: mailbox to use for the FW command
 *      @evt_mbox: mailbox to receive async FW events
 *      @master: specifies the caller's willingness to be the device master
 *	@state: returns the current device state (if non-NULL)
 *
 *	Issues a command to establish communication with FW.  Returns either
 *	an error (negative integer) or the mailbox of the Master PF.
 */
int t4_fw_hello(struct adapter *adap, unsigned int mbox, unsigned int evt_mbox,
		enum dev_master master, enum dev_state *state)
{
	int ret;
	struct fw_hello_cmd c;
	u32 v;
	unsigned int master_mbox;
	int retries = FW_CMD_HELLO_RETRIES;

retry:
	memset(&c, 0, sizeof(c));
	INIT_CMD(c, HELLO, WRITE);
	c.err_to_clearinit = cpu_to_be32(
		V_FW_HELLO_CMD_MASTERDIS(master == MASTER_CANT) |
		V_FW_HELLO_CMD_MASTERFORCE(master == MASTER_MUST) |
		V_FW_HELLO_CMD_MBMASTER(master == MASTER_MUST ?
					mbox : M_FW_HELLO_CMD_MBMASTER) |
		V_FW_HELLO_CMD_MBASYNCNOT(evt_mbox) |
		V_FW_HELLO_CMD_STAGE(FW_HELLO_CMD_STAGE_OS) |
		F_FW_HELLO_CMD_CLEARINIT);

	/*
	 * Issue the HELLO command to the firmware.  If it's not successful
	 * but indicates that we got a "busy" or "timeout" condition, retry
	 * the HELLO until we exhaust our retry limit.  If we do exceed our
	 * retry limit, check to see if the firmware left us any error
	 * information and report that if so ...
	 */
	ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
	if (ret != FW_SUCCESS) {
		if ((ret == -EBUSY || ret == -ETIMEDOUT) && retries-- > 0)
			goto retry;
		if (t4_read_reg(adap, A_PCIE_FW) & F_PCIE_FW_ERR)
			t4_report_fw_error(adap);
		return ret;
	}

	v = be32_to_cpu(c.err_to_clearinit);
	master_mbox = G_FW_HELLO_CMD_MBMASTER(v);
	if (state) {
		if (v & F_FW_HELLO_CMD_ERR)
			*state = DEV_STATE_ERR;
		else if (v & F_FW_HELLO_CMD_INIT)
			*state = DEV_STATE_INIT;
		else
			*state = DEV_STATE_UNINIT;
	}

	/*
	 * If we're not the Master PF then we need to wait around for the
	 * Master PF Driver to finish setting up the adapter.
	 *
	 * Note that we also do this wait if we're a non-Master-capable PF and
	 * there is no current Master PF; a Master PF may show up momentarily
	 * and we wouldn't want to fail pointlessly.  (This can happen when an
	 * OS loads lots of different drivers rapidly at the same time).  In
	 * this case, the Master PF returned by the firmware will be
	 * M_PCIE_FW_MASTER so the test below will work ...
	 */
	if ((v & (F_FW_HELLO_CMD_ERR|F_FW_HELLO_CMD_INIT)) == 0 &&
	    master_mbox != mbox) {
		int waiting = FW_CMD_HELLO_TIMEOUT;

		/*
		 * Wait for the firmware to either indicate an error or
		 * initialized state.  If we see either of these we bail out
		 * and report the issue to the caller.  If we exhaust the
		 * "hello timeout" and we haven't exhausted our retries, try
		 * again.  Otherwise bail with a timeout error.
		 */
		for (;;) {
			u32 pcie_fw;

			msleep(50);
			waiting -= 50;

			/*
			 * If neither Error nor Initialialized are indicated
			 * by the firmware keep waiting till we exaust our
			 * timeout ... and then retry if we haven't exhausted
			 * our retries ...
			 */
			pcie_fw = t4_read_reg(adap, A_PCIE_FW);
			if (!(pcie_fw & (F_PCIE_FW_ERR|F_PCIE_FW_INIT))) {
				if (waiting <= 0) {
					if (retries-- > 0)
						goto retry;

					return -ETIMEDOUT;
				}
				continue;
			}

			/*
			 * We either have an Error or Initialized condition
			 * report errors preferentially.
			 */
			if (state) {
				if (pcie_fw & F_PCIE_FW_ERR)
					*state = DEV_STATE_ERR;
				else if (pcie_fw & F_PCIE_FW_INIT)
					*state = DEV_STATE_INIT;
			}

			/*
			 * If we arrived before a Master PF was selected and
			 * there's not a valid Master PF, grab its identity
			 * for our caller.
			 */
			if (master_mbox == M_PCIE_FW_MASTER &&
			    (pcie_fw & F_PCIE_FW_MASTER_VLD))
				master_mbox = G_PCIE_FW_MASTER(pcie_fw);
			break;
		}
	}

	return master_mbox;
}

/**
 *	t4_fw_bye - end communication with FW
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *
 *	Issues a command to terminate communication with FW.
 */
int t4_fw_bye(struct adapter *adap, unsigned int mbox)
{
	struct fw_bye_cmd c;

	memset(&c, 0, sizeof(c));
	INIT_CMD(c, BYE, WRITE);
	return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}

/**
 *	t4_fw_reset - issue a reset to FW
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@reset: specifies the type of reset to perform
 *
 *	Issues a reset command of the specified type to FW.
 */
int t4_fw_reset(struct adapter *adap, unsigned int mbox, int reset)
{
	struct fw_reset_cmd c;

	memset(&c, 0, sizeof(c));
	INIT_CMD(c, RESET, WRITE);
	c.val = cpu_to_be32(reset);
	return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}

/**
 *	t4_fw_halt - issue a reset/halt to FW and put uP into RESET
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW RESET command (if desired)
 *	@force: force uP into RESET even if FW RESET command fails
 *
 *	Issues a RESET command to firmware (if desired) with a HALT indication
 *	and then puts the microprocessor into RESET state.  The RESET command
 *	will only be issued if a legitimate mailbox is provided (mbox <=
 *	M_PCIE_FW_MASTER).
 *
 *	This is generally used in order for the host to safely manipulate the
 *	adapter without fear of conflicting with whatever the firmware might
 *	be doing.  The only way out of this state is to RESTART the firmware
 *	...
 */
static int t4_fw_halt(struct adapter *adap, unsigned int mbox, int force)
{
	int ret = 0;

	/*
	 * If a legitimate mailbox is provided, issue a RESET command
	 * with a HALT indication.
	 */
	if (mbox <= M_PCIE_FW_MASTER) {
		struct fw_reset_cmd c;

		memset(&c, 0, sizeof(c));
		INIT_CMD(c, RESET, WRITE);
		c.val = cpu_to_be32(F_PIORST | F_PIORSTMODE);
		c.halt_pkd = cpu_to_be32(F_FW_RESET_CMD_HALT);
		ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
	}

	/*
	 * Normally we won't complete the operation if the firmware RESET
	 * command fails but if our caller insists we'll go ahead and put the
	 * uP into RESET.  This can be useful if the firmware is hung or even
	 * missing ...  We'll have to take the risk of putting the uP into
	 * RESET without the cooperation of firmware in that case.
	 *
	 * We also force the firmware's HALT flag to be on in case we bypassed
	 * the firmware RESET command above or we're dealing with old firmware
	 * which doesn't have the HALT capability.  This will serve as a flag
	 * for the incoming firmware to know that it's coming out of a HALT
	 * rather than a RESET ... if it's new enough to understand that ...
	 */
	if (ret == 0 || force) {
		t4_set_reg_field(adap, A_CIM_BOOT_CFG, F_UPCRST, F_UPCRST);
		t4_set_reg_field(adap, A_PCIE_FW, F_PCIE_FW_HALT,
				 F_PCIE_FW_HALT);
	}

	/*
	 * And we always return the result of the firmware RESET command
	 * even when we force the uP into RESET ...
	 */
	return ret;
}

/**
 *	t4_fw_restart - restart the firmware by taking the uP out of RESET
 *	@adap: the adapter
 *	@reset: if we want to do a RESET to restart things
 *
 *	Restart firmware previously halted by t4_fw_halt().  On successful
 *	return the previous PF Master remains as the new PF Master and there
 *	is no need to issue a new HELLO command, etc.
 *
 *	We do this in two ways:
 *
 *	 1. If we're dealing with newer firmware we'll simply want to take
 *	    the chip's microprocessor out of RESET.  This will cause the
 *	    firmware to start up from its start vector.  And then we'll loop
 *	    until the firmware indicates it's started again (PCIE_FW.HALT
 *	    reset to 0) or we timeout.
 *
 *	 2. If we're dealing with older firmware then we'll need to RESET
 *	    the chip since older firmware won't recognize the PCIE_FW.HALT
 *	    flag and automatically RESET itself on startup.
 */
static int t4_fw_restart(struct adapter *adap, unsigned int mbox, int reset)
{
	if (reset) {
		/*
		 * Since we're directing the RESET instead of the firmware
		 * doing it automatically, we need to clear the PCIE_FW.HALT
		 * bit.
		 */
		t4_set_reg_field(adap, A_PCIE_FW, F_PCIE_FW_HALT, 0);

		/*
		 * If we've been given a valid mailbox, first try to get the
		 * firmware to do the RESET.  If that works, great and we can
		 * return success.  Otherwise, if we haven't been given a
		 * valid mailbox or the RESET command failed, fall back to
		 * hitting the chip with a hammer.
		 */
		if (mbox <= M_PCIE_FW_MASTER) {
			t4_set_reg_field(adap, A_CIM_BOOT_CFG, F_UPCRST, 0);
			msleep(100);
			if (t4_fw_reset(adap, mbox,
					F_PIORST | F_PIORSTMODE) == 0)
				return 0;
		}

		t4_write_reg(adap, A_PL_RST, F_PIORST | F_PIORSTMODE);
		msleep(2000);
	} else {
		int ms;

		t4_set_reg_field(adap, A_CIM_BOOT_CFG, F_UPCRST, 0);
		for (ms = 0; ms < FW_CMD_MAX_TIMEOUT; ) {
			if (!(t4_read_reg(adap, A_PCIE_FW) & F_PCIE_FW_HALT))
				return FW_SUCCESS;
			msleep(100);
			ms += 100;
		}
		return -ETIMEDOUT;
	}
	return 0;
}

/**
 *	t4_fw_upgrade - perform all of the steps necessary to upgrade FW
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW RESET command (if desired)
 *	@fw_data: the firmware image to write
 *	@size: image size
 *	@force: force upgrade even if firmware doesn't cooperate
 *
 *	Perform all of the steps necessary for upgrading an adapter's
 *	firmware image.  Normally this requires the cooperation of the
 *	existing firmware in order to halt all existing activities
 *	but if an invalid mailbox token is passed in we skip that step
 *	(though we'll still put the adapter microprocessor into RESET in
 *	that case).
 *
 *	On successful return the new firmware will have been loaded and
 *	the adapter will have been fully RESET losing all previous setup
 *	state.  On unsuccessful return the adapter may be completely hosed ...
 *	positive errno indicates that the adapter is ~probably~ intact, a
 *	negative errno indicates that things are looking bad ...
 */
int t4_fw_upgrade(struct adapter *adap, unsigned int mbox,
		  const u8 *fw_data, unsigned int size, int force)
{
	const struct fw_hdr *fw_hdr = (const struct fw_hdr *)fw_data;
	unsigned int bootstrap =
	    be32_to_cpu(fw_hdr->magic) == FW_HDR_MAGIC_BOOTSTRAP;
	int reset, ret;

	if (!t4_fw_matches_chip(adap, fw_hdr))
		return -EINVAL;

	/* Disable FW_OK flags so that mbox commands with FW_OK flags check
	 * wont be send when we are flashing FW.
	 */
	adap->flags &= ~FW_OK;

	if (!bootstrap) {
		ret = t4_fw_halt(adap, mbox, force);
		if (ret < 0 && !force)
			goto out;
	}

	ret = t4_load_fw(adap, fw_data, size, bootstrap);
	if (ret < 0 || bootstrap)
		goto out;

	/*
	 * If there was a Firmware Configuration File staored in FLASH,
	 * there's a good chance that it won't be compatible with the new
	 * Firmware.  In order to prevent difficult to diagnose adapter
	 * initialization issues, we clear out the Firmware Configuration File
	 * portion of the FLASH .  The user will need to re-FLASH a new
	 * Firmware Configuration File which is compatible with the new
	 * Firmware if that's desired.
	 */
	(void)t4_load_cfg(adap, NULL, 0);

	/*
	 * Older versions of the firmware don't understand the new
	 * PCIE_FW.HALT flag and so won't know to perform a RESET when they
	 * restart.  So for newly loaded older firmware we'll have to do the
	 * RESET for it so it starts up on a clean slate.  We can tell if
	 * the newly loaded firmware will handle this right by checking
	 * its header flags to see if it advertises the capability.
	 */
	reset = ((be32_to_cpu(fw_hdr->flags) & FW_HDR_FLAGS_RESET_HALT) == 0);
	ret = t4_fw_restart(adap, mbox, reset);

	/* Grab potentially new Firmware Device Log parameters so we can see
	 * how helthy the new Firmware is.  It's okay to contact the new
	 * Firmware for these parameters even though, as far as it's
	 * concerned, we've never said "HELLO" to it ...
	 */
	(void)t4_init_devlog_params(adap, 1);

out:
	adap->flags |= FW_OK;
	return ret;
}

/**
 *	t4_fl_pkt_align - return the fl packet alignment
 *	@adap: the adapter
 *	is_packed: True when the driver uses packed FLM mode
 *
 *	T4 has a single field to specify the packing and padding boundary.
 *	T5 onwards has separate fields for this and hence the alignment for
 *	next packet offset is maximum of these two.
 *
 */
int t4_fl_pkt_align(struct adapter *adap, bool is_packed)
{
	u32 sge_control, sge_control2;
	unsigned int ingpadboundary, ingpackboundary, fl_align, ingpad_shift;

	sge_control = t4_read_reg(adap, A_SGE_CONTROL);

	/* T4 uses a single control field to specify both the PCIe Padding and
	 * Packing Boundary.  T5 introduced the ability to specify these
	 * separately.  The actual Ingress Packet Data alignment boundary
	 * within Packed Buffer Mode is the maximum of these two
	 * specifications.  (Note that it makes no real practical sense to
	 * have the Pading Boudary be larger than the Packing Boundary but you
	 * could set the chip up that way and, in fact, legacy T4 code would
	 * end doing this because it would initialize the Padding Boundary and
	 * leave the Packing Boundary initialized to 0 (16 bytes).)
	 * Padding Boundary values in T6 starts from 8B,
	 * where as it is 32B for T4 and T5.
	 */
	if (CHELSIO_CHIP_VERSION(adap->params.chip) <= CHELSIO_T5)
		ingpad_shift = X_INGPADBOUNDARY_SHIFT;
	else
		ingpad_shift = X_T6_INGPADBOUNDARY_SHIFT;

	ingpadboundary = 1 << (G_INGPADBOUNDARY(sge_control) + ingpad_shift);

	fl_align = ingpadboundary;
	if (!is_t4(adap->params.chip) && is_packed) {
		/* T5 has a weird interpretation of one of the PCIe Packing
		 * Boundary values.  No idea why ...
		 */
		sge_control2 = t4_read_reg(adap, A_SGE_CONTROL2);
		ingpackboundary = G_INGPACKBOUNDARY(sge_control2);
		if (ingpackboundary == X_INGPACKBOUNDARY_16B)
			ingpackboundary = 16;
		else
			ingpackboundary = 1 << (ingpackboundary +
						X_INGPACKBOUNDARY_SHIFT);

		fl_align = max(ingpadboundary, ingpackboundary);
	}
	return fl_align;
}

/**
 *	t4_fixup_host_params_compat - fix up host-dependent parameters
 *	@adap: the adapter
 *	@page_size: the host's Base Page Size
 *	@cache_line_size: the host's Cache Line Size
 *	@chip_compat: maintain compatibility with designated chip
 *
 *	Various registers in the chip contain values which are dependent on the
 *	host's Base Page and Cache Line Sizes.  This function will fix all of
 *	those registers with the appropriate values as passed in ...
 *
 *	@chip_compat is used to limit the set of changes that are made
 *	to be compatible with the indicated chip release.  This is used by
 *	drivers to maintain compatibility with chip register settings when
 *	the drivers haven't [yet] been updated with new chip support.
 */
int t4_fixup_host_params_compat(struct adapter *adap,
				unsigned int page_size,
				unsigned int cache_line_size,
				enum chip_type chip_compat)
{
	unsigned int page_shift = fls(page_size) - 1;
	unsigned int sge_hps = page_shift - 10;
	unsigned int stat_len = cache_line_size > 64 ? 128 : 64;
	unsigned int fl_align = cache_line_size < 32 ? 32 : cache_line_size;
	unsigned int fl_align_log = fls(fl_align) - 1;

	t4_write_reg(adap, A_SGE_HOST_PAGE_SIZE,
		     V_HOSTPAGESIZEPF0(sge_hps) |
		     V_HOSTPAGESIZEPF1(sge_hps) |
		     V_HOSTPAGESIZEPF2(sge_hps) |
		     V_HOSTPAGESIZEPF3(sge_hps) |
		     V_HOSTPAGESIZEPF4(sge_hps) |
		     V_HOSTPAGESIZEPF5(sge_hps) |
		     V_HOSTPAGESIZEPF6(sge_hps) |
		     V_HOSTPAGESIZEPF7(sge_hps));

	if (is_t4(adap->params.chip) || is_t4(chip_compat)) {
		t4_set_reg_field(adap, A_SGE_CONTROL,
				 V_INGPADBOUNDARY(M_INGPADBOUNDARY) |
				 F_EGRSTATUSPAGESIZE,
				 V_INGPADBOUNDARY(fl_align_log -
						  X_INGPADBOUNDARY_SHIFT) |
				 V_EGRSTATUSPAGESIZE(stat_len != 64));
	} else {
		unsigned int pack_align;
		unsigned int ingpad, ingpack;
		unsigned int pcie_cap;

		/* T5 introduced the separation of the Free List Padding and
		 * Packing Boundaries.  Thus, we can select a smaller Padding
		 * Boundary to avoid uselessly chewing up PCIe Link and Memory
		 * Bandwidth, and use a Packing Boundary which is large enough
		 * to avoid false sharing between CPUs, etc.
		 *
		 * For the PCI Link, the smaller the Padding Boundary the
		 * better.  For the Memory Controller, a smaller Padding
		 * Boundary is better until we cross under the Memory Line
		 * Size (the minimum unit of transfer to/from Memory).  If we
		 * have a Padding Boundary which is smaller than the Memory
		 * Line Size, that'll involve a Read-Modify-Write cycle on the
		 * Memory Controller which is never good.
		 */

		/* We want the Packing Boundary to be based on the Cache Line
		 * Size in order to help avoid False Sharing performance
		 * issues between CPUs, etc.  We also want the Packing
		 * Boundary to incorporate the PCI-E Maximum Payload Size.  We
		 * get best performance when the Packing Boundary is a
		 * multiple of the Maximum Payload Size.
		 */
		pack_align = fl_align;
		pcie_cap = t4_os_find_pci_capability(adap, PCI_CAP_ID_EXP);
		if (pcie_cap) {
			unsigned int mps, mps_log;
			u16 devctl;

			/*
			 * The PCIe Device Control Maximum Payload Size field
			 * [bits 7:5] encodes sizes as powers of 2 starting at
			 * 128 bytes.
			 */
			t4_os_pci_read_cfg2(adap, pcie_cap + PCI_EXP_DEVCTL,
					    &devctl);
			mps_log = ((devctl & PCI_EXP_DEVCTL_PAYLOAD) >> 5) + 7;
			mps = 1 << mps_log;
			if (mps > pack_align)
				pack_align = mps;
		}

		/* N.B. T5/T6 have a crazy special interpretation of the "0"
		 * value for the Packing Boundary.  This corresponds to 16
		 * bytes instead of the expected 32 bytes.  So if we want 32
		 * bytes, the best we can really do is 64 bytes ...
		 */
		if (pack_align <= 16) {
			ingpack = X_INGPACKBOUNDARY_16B;
			fl_align = 16;
		} else if (pack_align == 32) {
			ingpack = X_INGPACKBOUNDARY_64B;
			fl_align = 64;
		} else {
			unsigned int pack_align_log = fls(pack_align) - 1;
			ingpack = pack_align_log - X_INGPACKBOUNDARY_SHIFT;
			fl_align = pack_align;
		}

		/* Use the smallest Ingress Padding which isn't smaller than
		 * the Memory Controller Read/Write Size.  We'll take that as
		 * being 8 bytes since we don't know of any system with a
		 * wider Memory Controller Bus Width.
		 */
		if (is_t5(adap->params.chip))
			ingpad = X_INGPADBOUNDARY_32B;
		else
			ingpad = X_T6_INGPADBOUNDARY_8B;

		t4_set_reg_field(adap, A_SGE_CONTROL,
				 V_INGPADBOUNDARY(M_INGPADBOUNDARY) |
				 F_EGRSTATUSPAGESIZE,
				 V_INGPADBOUNDARY(ingpad) |
				 V_EGRSTATUSPAGESIZE(stat_len != 64));
		t4_set_reg_field(adap, A_SGE_CONTROL2,
				 V_INGPACKBOUNDARY(M_INGPACKBOUNDARY),
				 V_INGPACKBOUNDARY(ingpack));
	}
	/*
	 * Adjust various SGE Free List Host Buffer Sizes.
	 *
	 * This is something of a crock since we're using fixed indices into
	 * the array which are also known by the sge.c code and the T4
	 * Firmware Configuration File.  We need to come up with a much better
	 * approach to managing this array.  For now, the first four entries
	 * are:
	 *
	 *   0: Host Page Size
	 *   1: 64KB
	 *   2: Buffer size corresponding to 1500 byte MTU (unpacked mode)
	 *   3: Buffer size corresponding to 9000 byte MTU (unpacked mode)
	 *
	 * For the single-MTU buffers in unpacked mode we need to include
	 * space for the SGE Control Packet Shift, 14 byte Ethernet header,
	 * possible 4 byte VLAN tag, all rounded up to the next Ingress Packet
	 * Padding boundary.  All of these are accommodated in the Factory
	 * Default Firmware Configuration File but we need to adjust it for
	 * this host's cache line size.
	 */
	t4_write_reg(adap, A_SGE_FL_BUFFER_SIZE0, page_size);
	t4_write_reg(adap, A_SGE_FL_BUFFER_SIZE2,
		     (t4_read_reg(adap, A_SGE_FL_BUFFER_SIZE2) + fl_align-1)
		     & ~(fl_align-1));
	t4_write_reg(adap, A_SGE_FL_BUFFER_SIZE3,
		     (t4_read_reg(adap, A_SGE_FL_BUFFER_SIZE3) + fl_align-1)
		     & ~(fl_align-1));

	t4_write_reg(adap, A_ULP_RX_TDDP_PSZ, V_HPZ0(page_shift - 12));

	return 0;
}

/**
 *	t4_fixup_host_params - fix up host-dependent parameters (T4 compatible)
 *	@adap: the adapter
 *	@page_size: the host's Base Page Size
 *	@cache_line_size: the host's Cache Line Size
 *
 *	Various registers in T4 contain values which are dependent on the
 *	host's Base Page and Cache Line Sizes.  This function will fix all of
 *	those registers with the appropriate values as passed in ...
 *
 *	This routine makes changes which are compatible with T4 chips.
 */
int t4_fixup_host_params(struct adapter *adap, unsigned int page_size,
			 unsigned int cache_line_size)
{
	return t4_fixup_host_params_compat(adap, page_size, cache_line_size,
					   T4_LAST_REV);
}

/**
 *	t4_fw_initialize - ask FW to initialize the device
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *
 *	Issues a command to FW to partially initialize the device.  This
 *	performs initialization that generally doesn't depend on user input.
 */
int t4_fw_initialize(struct adapter *adap, unsigned int mbox)
{
	struct fw_initialize_cmd c;

	memset(&c, 0, sizeof(c));
	INIT_CMD(c, INITIALIZE, WRITE);
	return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}

/**
 *	t4_query_params_rw - query FW or device parameters
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@pf: the PF
 *	@vf: the VF
 *	@nparams: the number of parameters
 *	@params: the parameter names
 *	@val: the parameter values
 *	@rw: Write and read flag
 *	@sleep_ok: if true, we may sleep awaiting mbox cmd completion
 *
 *	Reads the value of FW or device parameters.  Up to 7 parameters can be
 *	queried at once.
 */
int t4_query_params_rw(struct adapter *adap, unsigned int mbox, unsigned int pf,
		       unsigned int vf, unsigned int nparams, const u32 *params,
		       u32 *val, int rw, bool sleep_ok)
{
	int i, ret;
	struct fw_params_cmd c;
	__be32 *p = &c.param[0].mnem;

	if (nparams > 7)
		return -EINVAL;

	memset(&c, 0, sizeof(c));
	c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_PARAMS_CMD) |
				  F_FW_CMD_REQUEST | F_FW_CMD_READ |
				  V_FW_PARAMS_CMD_PFN(pf) |
				  V_FW_PARAMS_CMD_VFN(vf));
	c.retval_len16 = cpu_to_be32(FW_LEN16(c));

	for (i = 0; i < nparams; i++) {
		*p++ = cpu_to_be32(*params++);
		if (rw)
			*p = cpu_to_be32(*(val + i));
		p++;
	}

	ret = t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), &c, sleep_ok);

	/*
	 * We always copy back the reults, even if there's an error.  We'll
	 * get an error if any of the parameters was unknown to the Firmware,
	 * but there will be results for the others ...  (Older Firmware
	 * stopped at the first unknown parameter; newer Firmware processes
	 * them all and flags the unknown parameters with a return value of
	 * ~0UL.)
	 */
	for (i = 0, p = &c.param[0].val; i < nparams; i++, p += 2)
		*val++ = be32_to_cpu(*p);

	return ret;
}

int t4_query_params(struct adapter *adap, unsigned int mbox, unsigned int pf,
		    unsigned int vf, unsigned int nparams, const u32 *params,
		    u32 *val)
{
	return t4_query_params_rw(adap, mbox, pf, vf, nparams, params, val, 0,
				  true);
}

int t4_query_params_ns(struct adapter *adap, unsigned int mbox, unsigned int pf,
		    unsigned int vf, unsigned int nparams, const u32 *params,
		    u32 *val)
{
	return t4_query_params_rw(adap, mbox, pf, vf, nparams, params, val, 0,
				  false);
}

/**
 *      t4_set_params_timeout - sets FW or device parameters
 *      @adap: the adapter
 *      @mbox: mailbox to use for the FW command
 *      @pf: the PF
 *      @vf: the VF
 *      @nparams: the number of parameters
 *      @params: the parameter names
 *      @val: the parameter values
 *      @timeout: the timeout time
 *
 *      Sets the value of FW or device parameters.  Up to 7 parameters can be
 *      specified at once.
 */
int t4_set_params_timeout(struct adapter *adap, unsigned int mbox,
			  unsigned int pf, unsigned int vf,
			  unsigned int nparams, const u32 *params,
			  const u32 *val, int timeout)
{
	struct fw_params_cmd c;
	__be32 *p = &c.param[0].mnem;

	if (nparams > 7)
		return -EINVAL;

	memset(&c, 0, sizeof(c));
	c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_PARAMS_CMD) |
				  F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
				  V_FW_PARAMS_CMD_PFN(pf) |
				  V_FW_PARAMS_CMD_VFN(vf));
	c.retval_len16 = cpu_to_be32(FW_LEN16(c));

	while (nparams--) {
		*p++ = cpu_to_be32(*params++);
		*p++ = cpu_to_be32(*val++);
	}

	return t4_wr_mbox_timeout(adap, mbox, &c, sizeof(c), NULL, timeout);
}

/**
 *	t4_set_params - sets FW or device parameters
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@pf: the PF
 *	@vf: the VF
 *	@nparams: the number of parameters
 *	@params: the parameter names
 *	@val: the parameter values
 *
 *	Sets the value of FW or device parameters.  Up to 7 parameters can be
 *	specified at once.
 */
int t4_set_params(struct adapter *adap, unsigned int mbox, unsigned int pf,
		  unsigned int vf, unsigned int nparams, const u32 *params,
		  const u32 *val)
{
	return t4_set_params_timeout(adap, mbox, pf, vf, nparams, params, val,
				     FW_CMD_MAX_TIMEOUT);
}

/**
 *	t4_cfg_pfvf - configure PF/VF resource limits
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@pf: the PF being configured
 *	@vf: the VF being configured
 *	@txq: the max number of egress queues
 *	@txq_eth_ctrl: the max number of egress Ethernet or control queues
 *	@rxqi: the max number of interrupt-capable ingress queues
 *	@rxq: the max number of interruptless ingress queues
 *	@tc: the PCI traffic class
 *	@vi: the max number of virtual interfaces
 *	@cmask: the channel access rights mask for the PF/VF
 *	@pmask: the port access rights mask for the PF/VF
 *	@nexact: the maximum number of exact MPS filters
 *	@rcaps: read capabilities
 *	@wxcaps: write/execute capabilities
 *
 *	Configures resource limits and capabilities for a physical or virtual
 *	function.
 */
int t4_cfg_pfvf(struct adapter *adap, unsigned int mbox, unsigned int pf,
		unsigned int vf, unsigned int txq, unsigned int txq_eth_ctrl,
		unsigned int rxqi, unsigned int rxq, unsigned int tc,
		unsigned int vi, unsigned int cmask, unsigned int pmask,
		unsigned int nexact, unsigned int rcaps, unsigned int wxcaps)
{
	struct fw_pfvf_cmd c;

	memset(&c, 0, sizeof(c));
	c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_PFVF_CMD) | F_FW_CMD_REQUEST |
				  F_FW_CMD_WRITE | V_FW_PFVF_CMD_PFN(pf) |
				  V_FW_PFVF_CMD_VFN(vf));
	c.retval_len16 = cpu_to_be32(FW_LEN16(c));
	c.niqflint_niq = cpu_to_be32(V_FW_PFVF_CMD_NIQFLINT(rxqi) |
				     V_FW_PFVF_CMD_NIQ(rxq));
	c.type_to_neq = cpu_to_be32(V_FW_PFVF_CMD_CMASK(cmask) |
				    V_FW_PFVF_CMD_PMASK(pmask) |
				    V_FW_PFVF_CMD_NEQ(txq));
	c.tc_to_nexactf = cpu_to_be32(V_FW_PFVF_CMD_TC(tc) |
				      V_FW_PFVF_CMD_NVI(vi) |
				      V_FW_PFVF_CMD_NEXACTF(nexact));
	c.r_caps_to_nethctrl = cpu_to_be32(V_FW_PFVF_CMD_R_CAPS(rcaps) |
				     V_FW_PFVF_CMD_WX_CAPS(wxcaps) |
				     V_FW_PFVF_CMD_NETHCTRL(txq_eth_ctrl));
	return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}

/**
 *	t4_alloc_vi_func - allocate a virtual interface
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@port: physical port associated with the VI
 *	@pf: the PF owning the VI
 *	@vf: the VF owning the VI
 *	@nmac: number of MAC addresses needed (1 to 5)
 *	@mac: the MAC addresses of the VI
 *	@rss_size: size of RSS table slice associated with this VI
 *	@portfunc: which Port Application Function MAC Address is desired
 *	@idstype: Intrusion Detection Type
 *
 *	Allocates a virtual interface for the given physical port.  If @mac is
 *	not %NULL it contains the MAC addresses of the VI as assigned by FW.
 *	If @rss_size is %NULL the VI is not assigned any RSS slice by FW.
 *	@mac should be large enough to hold @nmac Ethernet addresses, they are
 *	stored consecutively so the space needed is @nmac * 6 bytes.
 *	Returns a negative error number or the non-negative VI id.
 */
int t4_alloc_vi_func(struct adapter *adap, unsigned int mbox,
		     unsigned int port, unsigned int pf, unsigned int vf,
		     unsigned int nmac, u8 *mac, unsigned int *rss_size,
		     u8 *vivld, u8 *vin,
		     unsigned int portfunc, unsigned int idstype)
{
	int ret;
	struct fw_vi_cmd c;

	memset(&c, 0, sizeof(c));
	c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_VI_CMD) | F_FW_CMD_REQUEST |
				  F_FW_CMD_WRITE | F_FW_CMD_EXEC |
				  V_FW_VI_CMD_PFN(pf) | V_FW_VI_CMD_VFN(vf));
	c.alloc_to_len16 = cpu_to_be32(F_FW_VI_CMD_ALLOC | FW_LEN16(c));
	c.type_to_viid = cpu_to_be16(V_FW_VI_CMD_TYPE(idstype) |
				     V_FW_VI_CMD_FUNC(portfunc));
	c.portid_pkd = V_FW_VI_CMD_PORTID(port);
	c.nmac = nmac - 1;
	if(!rss_size)
		c.norss_rsssize = F_FW_VI_CMD_NORSS;

	ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
	if (ret)
		return ret;

	if (mac) {
		memcpy(mac, c.mac, sizeof(c.mac));
		switch (nmac) {
		case 5:
			memcpy(mac + 24, c.nmac3, sizeof(c.nmac3));
			/* FALLTHRU */
		case 4:
			memcpy(mac + 18, c.nmac2, sizeof(c.nmac2));
			/* FALLTHRU */
		case 3:
			memcpy(mac + 12, c.nmac1, sizeof(c.nmac1));
			/* FALLTHRU */
		case 2:
			memcpy(mac + 6,  c.nmac0, sizeof(c.nmac0));
		}
	}
	if (rss_size)
		*rss_size = G_FW_VI_CMD_RSSSIZE(be16_to_cpu(c.norss_rsssize));

	if (vivld)
		*vivld = G_FW_VI_CMD_VFVLD(be32_to_cpu(c.alloc_to_len16));

	if (vin)
		*vin = G_FW_VI_CMD_VIN(be32_to_cpu(c.alloc_to_len16));

	return G_FW_VI_CMD_VIID(be16_to_cpu(c.type_to_viid));
}

/**
 *      t4_alloc_vi - allocate an [Ethernet Function] virtual interface
 *      @adap: the adapter
 *      @mbox: mailbox to use for the FW command
 *      @port: physical port associated with the VI
 *      @pf: the PF owning the VI
 *      @vf: the VF owning the VI
 *      @nmac: number of MAC addresses needed (1 to 5)
 *      @mac: the MAC addresses of the VI
 *      @rss_size: size of RSS table slice associated with this VI
 *
 *	backwards compatible and convieniance routine to allocate a Virtual
 *	Interface with a Ethernet Port Application Function and Intrustion
 *	Detection System disabled.
 */
int t4_alloc_vi(struct adapter *adap, unsigned int mbox, unsigned int port,
		unsigned int pf, unsigned int vf, unsigned int nmac, u8 *mac,
		unsigned int *rss_size, u8 *vivld, u8 *vin)
{
	return t4_alloc_vi_func(adap, mbox, port, pf, vf, nmac, mac, rss_size,
				vivld, vin, FW_VI_FUNC_ETH, 0);
}


/**
 * 	t4_free_vi - free a virtual interface
 * 	@adap: the adapter
 * 	@mbox: mailbox to use for the FW command
 * 	@pf: the PF owning the VI
 * 	@vf: the VF owning the VI
 * 	@viid: virtual interface identifiler
 *
 * 	Free a previously allocated virtual interface.
 */
int t4_free_vi(struct adapter *adap, unsigned int mbox, unsigned int pf,
	       unsigned int vf, unsigned int viid)
{
	struct fw_vi_cmd c;

	memset(&c, 0, sizeof(c));
	c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_VI_CMD) |
				  F_FW_CMD_REQUEST |
				  F_FW_CMD_EXEC |
				  V_FW_VI_CMD_PFN(pf) |
				  V_FW_VI_CMD_VFN(vf));
	c.alloc_to_len16 = cpu_to_be32(F_FW_VI_CMD_FREE | FW_LEN16(c));
	c.type_to_viid = cpu_to_be16(V_FW_VI_CMD_VIID(viid));

	return t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
}

/**
 *	t4_set_rxmode - set Rx properties of a virtual interface
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@viid: the VI id
 *	@mtu: the new MTU or -1
 *	@promisc: 1 to enable promiscuous mode, 0 to disable it, -1 no change
 *	@all_multi: 1 to enable all-multi mode, 0 to disable it, -1 no change
 *	@bcast: 1 to enable broadcast Rx, 0 to disable it, -1 no change
 *	@vlanex: 1 to enable HW VLAN extraction, 0 to disable it, -1 no change
 *	@sleep_ok: if true we may sleep while awaiting command completion
 *
 *	Sets Rx properties of a virtual interface.
 */
int t4_set_rxmode(struct adapter *adap, unsigned int mbox, unsigned int viid,
		  int mtu, int promisc, int all_multi, int bcast, int vlanex,
		  bool sleep_ok)
{
	struct fw_vi_rxmode_cmd c;

	/* convert to FW values */
	if (mtu < 0)
		mtu = M_FW_VI_RXMODE_CMD_MTU;
	if (promisc < 0)
		promisc = M_FW_VI_RXMODE_CMD_PROMISCEN;
	if (all_multi < 0)
		all_multi = M_FW_VI_RXMODE_CMD_ALLMULTIEN;
	if (bcast < 0)
		bcast = M_FW_VI_RXMODE_CMD_BROADCASTEN;
	if (vlanex < 0)
		vlanex = M_FW_VI_RXMODE_CMD_VLANEXEN;

	memset(&c, 0, sizeof(c));
	c.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_VI_RXMODE_CMD) |
				   F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
				   V_FW_VI_RXMODE_CMD_VIID(viid));
	c.retval_len16 = cpu_to_be32(FW_LEN16(c));
	c.mtu_to_vlanexen =
		cpu_to_be32(V_FW_VI_RXMODE_CMD_MTU(mtu) |
			    V_FW_VI_RXMODE_CMD_PROMISCEN(promisc) |
			    V_FW_VI_RXMODE_CMD_ALLMULTIEN(all_multi) |
			    V_FW_VI_RXMODE_CMD_BROADCASTEN(bcast) |
			    V_FW_VI_RXMODE_CMD_VLANEXEN(vlanex));
	return t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), NULL, sleep_ok);
}

/**
 *	t4_alloc_encap_mac_filt - Adds a mac entry in mps tcam with VNI support
 *	@adap: the adapter
 *	@viid: the VI id
 *	@mac: the MAC address
 *	@mask: the mask
 *	@vni: the VNI id for the tunnel protocol
 *	@vni_mask: mask for the VNI id
 *	@dip_hit: to enable DIP match for the MPS entry
 *	@lookup_type: MAC address for inner (1) or outer (0) header
 *	@sleep_ok: call is allowed to sleep
 *
 *	Allocates an MPS entry with specified MAC address and VNI value.
 *
 *	Returns a negative error number or the allocated index for this mac.
 */
int t4_alloc_encap_mac_filt(struct adapter *adap, unsigned int viid,
			    const u8 *addr, const u8 *mask, unsigned int vni,
			    unsigned int vni_mask, u8 dip_hit, u8 lookup_type,
			    bool sleep_ok)
{
	struct fw_vi_mac_cmd c;
	struct fw_vi_mac_vni *p = c.u.exact_vni;
	int ret = 0;
	u32 val;

	memset(&c, 0, sizeof(c));
	c.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_VI_MAC_CMD) |
				   F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
				   V_FW_VI_MAC_CMD_VIID(viid));
	val = V_FW_CMD_LEN16(1) |
	      V_FW_VI_MAC_CMD_ENTRY_TYPE(FW_VI_MAC_TYPE_EXACTMAC_VNI);
	c.freemacs_to_len16 = cpu_to_be32(val);
	p->valid_to_idx = cpu_to_be16(F_FW_VI_MAC_CMD_VALID |
				      V_FW_VI_MAC_CMD_IDX(FW_VI_MAC_ADD_MAC));
	memcpy(p->macaddr, addr, sizeof(p->macaddr));
	memcpy(p->macaddr_mask, mask, sizeof(p->macaddr_mask));

	p->lookup_type_to_vni = cpu_to_be32(V_FW_VI_MAC_CMD_VNI(vni) |
					    V_FW_VI_MAC_CMD_DIP_HIT(dip_hit) |
					    V_FW_VI_MAC_CMD_LOOKUP_TYPE(lookup_type));
	p->vni_mask_pkd = cpu_to_be32(V_FW_VI_MAC_CMD_VNI_MASK(vni_mask));

	ret = t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, sleep_ok);
	if (ret == 0)
		ret = G_FW_VI_MAC_CMD_IDX(be16_to_cpu(p->valid_to_idx));
	return ret;
}

/**
 *	t4_alloc_raw_mac_filt - Adds a mac entry in mps tcam
 *	@adap: the adapter
 *	@viid: the VI id
 *	@mac: the MAC address
 *	@mask: the mask
 *	@idx: index at which to add this entry
 *	@port_id: the port index
 *	@lookup_type: MAC address for inner (1) or outer (0) header
 *	@sleep_ok: call is allowed to sleep
 *
 *	Adds the mac entry at the specified index using raw mac interface.
 *
 *	Returns a negative error number or the allocated index for this mac.
 */
int t4_alloc_raw_mac_filt(struct adapter *adap, unsigned int viid,
			  const u8 *addr, const u8 *mask, unsigned int idx,
			  u8 lookup_type, u8 port_id, bool sleep_ok)
{
	int ret = 0;
	struct fw_vi_mac_cmd c;
	struct fw_vi_mac_raw *p = &c.u.raw;
	u32 val;

	memset(&c, 0, sizeof(c));
	c.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_VI_MAC_CMD) |
				   F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
				   V_FW_VI_MAC_CMD_VIID(viid));
	val = V_FW_CMD_LEN16(1) |
	      V_FW_VI_MAC_CMD_ENTRY_TYPE(FW_VI_MAC_TYPE_RAW);
	c.freemacs_to_len16 = cpu_to_be32(val);

	/* Specify that this is an inner mac address */
	p->raw_idx_pkd = cpu_to_be32(V_FW_VI_MAC_CMD_RAW_IDX(idx));

	/* Lookup Type. Outer header: 0, Inner header: 1 */
	p->data0_pkd = cpu_to_be32(V_DATALKPTYPE(lookup_type) |
				   V_DATAPORTNUM(port_id));
	/* Lookup mask and port mask */
	p->data0m_pkd = cpu_to_be64(V_DATALKPTYPE(M_DATALKPTYPE) |
				    V_DATAPORTNUM(M_DATAPORTNUM));

	/* Copy the address and the mask */
	memcpy((u8 *)&p->data1[0] + 2, addr, ETH_ALEN);
	memcpy((u8 *)&p->data1m[0] + 2, mask, ETH_ALEN);

	ret = t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, sleep_ok);
	if (ret == 0) {
		ret = G_FW_VI_MAC_CMD_RAW_IDX(be32_to_cpu(p->raw_idx_pkd));
		if (ret != idx)
			ret = -ENOMEM;
	}

	return ret;
}

/**
 *	t4_alloc_mac_filt - allocates exact-match filters for MAC addresses
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@viid: the VI id
 *	@free: if true any existing filters for this VI id are first removed
 *	@naddr: the number of MAC addresses to allocate filters for (up to 7)
 *	@addr: the MAC address(es)
 *	@idx: where to store the index of each allocated filter
 *	@hash: pointer to hash address filter bitmap
 *	@sleep_ok: call is allowed to sleep
 *
 *	Allocates an exact-match filter for each of the supplied addresses and
 *	sets it to the corresponding address.  If @idx is not %NULL it should
 *	have at least @naddr entries, each of which will be set to the index of
 *	the filter allocated for the corresponding MAC address.  If a filter
 *	could not be allocated for an address its index is set to 0xffff.
 *	If @hash is not %NULL addresses that fail to allocate an exact filter
 *	are hashed and update the hash filter bitmap pointed at by @hash.
 *
 *	Returns a negative error number or the number of filters allocated.
 */
int t4_alloc_mac_filt(struct adapter *adap, unsigned int mbox,
		      unsigned int viid, bool free, unsigned int naddr,
		      const u8 **addr, u16 *idx, u64 *hash, bool sleep_ok)
{
	int offset, ret = 0;
	struct fw_vi_mac_cmd c;
	unsigned int nfilters = 0;
	unsigned int max_naddr = adap->params.arch.mps_tcam_size;
	unsigned int rem = naddr;

	if (naddr > max_naddr)
		return -EINVAL;

	for (offset = 0; offset < naddr ; /**/) {
		unsigned int fw_naddr = (rem < ARRAY_SIZE(c.u.exact)
					 ? rem
					 : ARRAY_SIZE(c.u.exact));
		size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
						     u.exact[fw_naddr]), 16);
		struct fw_vi_mac_exact *p;
		int i;

		memset(&c, 0, sizeof(c));
		c.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_VI_MAC_CMD) |
					   F_FW_CMD_REQUEST |
					   F_FW_CMD_WRITE |
					   V_FW_CMD_EXEC(free) |
					   V_FW_VI_MAC_CMD_VIID(viid));
		c.freemacs_to_len16 = cpu_to_be32(V_FW_VI_MAC_CMD_FREEMACS(free) |
						  V_FW_CMD_LEN16(len16));

		for (i = 0, p = c.u.exact; i < fw_naddr; i++, p++) {
			p->valid_to_idx =
				cpu_to_be16(F_FW_VI_MAC_CMD_VALID |
					    V_FW_VI_MAC_CMD_IDX(FW_VI_MAC_ADD_MAC));
			memcpy(p->macaddr, addr[offset+i], sizeof(p->macaddr));
		}

		/*
		 * It's okay if we run out of space in our MAC address arena.
		 * Some of the addresses we submit may get stored so we need
		 * to run through the reply to see what the results were ...
		 */
		ret = t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), &c, sleep_ok);
		if (ret && ret != -FW_ENOMEM)
			break;

		for (i = 0, p = c.u.exact; i < fw_naddr; i++, p++) {
			u16 index = G_FW_VI_MAC_CMD_IDX(
						be16_to_cpu(p->valid_to_idx));

			if (idx)
				idx[offset+i] = (index >=  max_naddr
						 ? 0xffff
						 : index);
			if (index < max_naddr)
				nfilters++;
			else if (hash)
				*hash |= (1ULL << hash_mac_addr(addr[offset+i]));
		}

		free = false;
		offset += fw_naddr;
		rem -= fw_naddr;
	}

	if (ret == 0 || ret == -FW_ENOMEM)
		ret = nfilters;
	return ret;
}

/**
 *	t4_free_encap_mac_filt - frees MPS entry at given index
 *	@adap: the adapter
 *	@viid: the VI id
 *	@idx: index of MPS entry to be freed
 *	@sleep_ok: call is allowed to sleep
 *
 *	Frees the MPS entry at supplied index
 *
 *	Returns a negative error number or zero on success
 */
int t4_free_encap_mac_filt(struct adapter *adap, unsigned int viid,
			   int idx, bool sleep_ok)
{
	struct fw_vi_mac_exact *p;
	struct fw_vi_mac_cmd c;
	u8 addr[] = {0,0,0,0,0,0};
	int ret = 0;
	u32 exact;

	memset(&c, 0, sizeof(c));
	c.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_VI_MAC_CMD) |
				   F_FW_CMD_REQUEST |
				   F_FW_CMD_WRITE |
				   V_FW_CMD_EXEC(0) |
				   V_FW_VI_MAC_CMD_VIID(viid));
	exact = V_FW_VI_MAC_CMD_ENTRY_TYPE(FW_VI_MAC_TYPE_EXACTMAC);
	c.freemacs_to_len16 = cpu_to_be32(V_FW_VI_MAC_CMD_FREEMACS(0) |
					  exact |
					  V_FW_CMD_LEN16(1));
	p = c.u.exact;
	p->valid_to_idx = cpu_to_be16(F_FW_VI_MAC_CMD_VALID |
				      V_FW_VI_MAC_CMD_IDX(idx));
	memcpy(p->macaddr, addr, sizeof(p->macaddr));

	ret = t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, sleep_ok);
	return ret;
}

/**
 *	t4_free_raw_mac_filt - Frees a raw mac entry in mps tcam
 *	@adap: the adapter
 *	@viid: the VI id
 *	@addr: the MAC address
 *	@mask: the mask
 *	@idx: index of the entry in mps tcam
 *	@lookup_type: MAC address for inner (1) or outer (0) header
 *	@port_id: the port index
 *	@sleep_ok: call is allowed to sleep
 *
 *	Removes the mac entry at the specified index using raw mac interface.
 *
 *	Returns a negative error number on failure.
 */
int t4_free_raw_mac_filt(struct adapter *adap, unsigned int viid,
			 const u8 *addr, const u8 *mask, unsigned int idx,
			 u8 lookup_type, u8 port_id, bool sleep_ok)
{
	struct fw_vi_mac_cmd c;
	struct fw_vi_mac_raw *p = &c.u.raw;
	u32 raw;

	memset(&c, 0, sizeof(c));
	c.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_VI_MAC_CMD) |
				   F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
				   V_FW_CMD_EXEC(0) |
				   V_FW_VI_MAC_CMD_VIID(viid));
	raw = V_FW_VI_MAC_CMD_ENTRY_TYPE(FW_VI_MAC_TYPE_RAW);
	c.freemacs_to_len16 = cpu_to_be32(V_FW_VI_MAC_CMD_FREEMACS(0) |
					  raw |
					  V_FW_CMD_LEN16(1));

	p->raw_idx_pkd = cpu_to_be32(V_FW_VI_MAC_CMD_RAW_IDX(idx) |
				     FW_VI_MAC_ID_BASED_FREE);

	/* Lookup Type. Outer header: 0, Inner header: 1 */
	p->data0_pkd = cpu_to_be32(V_DATALKPTYPE(lookup_type) |
				   V_DATAPORTNUM(port_id));
	/* Lookup mask and port mask */
	p->data0m_pkd = cpu_to_be64(V_DATALKPTYPE(M_DATALKPTYPE) |
				    V_DATAPORTNUM(M_DATAPORTNUM));

	/* Copy the address and the mask */
	memcpy((u8 *)&p->data1[0] + 2, addr, ETH_ALEN);
	memcpy((u8 *)&p->data1m[0] + 2, mask, ETH_ALEN);

	return t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, sleep_ok);
}

/**
 *	t4_free_mac_filt - frees exact-match filters of given MAC addresses
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@viid: the VI id
 *	@naddr: the number of MAC addresses to allocate filters for (up to 7)
 *	@addr: the MAC address(es)
 *	@sleep_ok: call is allowed to sleep
 *
 *	Frees the exact-match filter for each of the supplied addresses
 *
 *	Returns a negative error number or the number of filters freed.
 */
int t4_free_mac_filt(struct adapter *adap, unsigned int mbox,
		      unsigned int viid, unsigned int naddr,
		      const u8 **addr, bool sleep_ok)
{
	int offset, ret = 0;
	struct fw_vi_mac_cmd c;
	unsigned int nfilters = 0;
	unsigned int max_naddr = is_t4(adap->params.chip) ?
				       NUM_MPS_CLS_SRAM_L_INSTANCES :
				       NUM_MPS_T5_CLS_SRAM_L_INSTANCES;
	unsigned int rem = naddr;

	if (naddr > max_naddr)
		return -EINVAL;

	for (offset = 0; offset < (int)naddr ; /**/) {
		unsigned int fw_naddr = (rem < ARRAY_SIZE(c.u.exact)
					 ? rem
					 : ARRAY_SIZE(c.u.exact));
		size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
						     u.exact[fw_naddr]), 16);
		struct fw_vi_mac_exact *p;
		int i;

		memset(&c, 0, sizeof(c));
		c.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_VI_MAC_CMD) |
				     F_FW_CMD_REQUEST |
				     F_FW_CMD_WRITE |
				     V_FW_CMD_EXEC(0) |
				     V_FW_VI_MAC_CMD_VIID(viid));
		c.freemacs_to_len16 =
				cpu_to_be32(V_FW_VI_MAC_CMD_FREEMACS(0) |
					    V_FW_CMD_LEN16(len16));

		for (i = 0, p = c.u.exact; i < (int)fw_naddr; i++, p++) {
			p->valid_to_idx = cpu_to_be16(
				F_FW_VI_MAC_CMD_VALID |
				V_FW_VI_MAC_CMD_IDX(FW_VI_MAC_MAC_BASED_FREE));
			memcpy(p->macaddr, addr[offset+i], sizeof(p->macaddr));
		}

		ret = t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), &c, sleep_ok);
		if (ret)
			break;

		for (i = 0, p = c.u.exact; i < fw_naddr; i++, p++) {
			u16 index = G_FW_VI_MAC_CMD_IDX(
						be16_to_cpu(p->valid_to_idx));

			if (index < max_naddr)
				nfilters++;
		}

		offset += fw_naddr;
		rem -= fw_naddr;
	}

	if (ret == 0)
		ret = nfilters;
	return ret;
}

/**
 *	t4_change_mac - modifies the exact-match filter for a MAC address
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@viid: the VI id
 *	@idx: index of existing filter for old value of MAC address, or -1
 *	@addr: the new MAC address value
 *	@persist: whether a new MAC allocation should be persistent
 *	@add_smt: if true also add the address to the HW SMT
 *
 *	Modifies an exact-match filter and sets it to the new MAC address if
 *	@idx >= 0, or adds the MAC address to a new filter if @idx < 0.  In the
 *	latter case the address is added persistently if @persist is %true.
 *
 *	Note that in general it is not possible to modify the value of a given
 *	filter so the generic way to modify an address filter is to free the one
 *	being used by the old address value and allocate a new filter for the
 *	new address value.
 *
 *	Returns a negative error number or the index of the filter with the new
 *	MAC value.  Note that this index may differ from @idx.
 */
int t4_change_mac(struct adapter *adap, unsigned int mbox, unsigned int viid,
		  int idx, const u8 *addr, bool persist, u8 *smt_idx)
{
	/* This will add this mac address to the destination TCAM region */
	return t4_add_mac(adap, mbox, viid, idx, addr, persist, smt_idx, 0);
}

/**
 *	t4_set_addr_hash - program the MAC inexact-match hash filter
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@viid: the VI id
 *	@ucast: whether the hash filter should also match unicast addresses
 *	@vec: the value to be written to the hash filter
 *	@sleep_ok: call is allowed to sleep
 *
 *	Sets the 64-bit inexact-match hash filter for a virtual interface.
 */
int t4_set_addr_hash(struct adapter *adap, unsigned int mbox, unsigned int viid,
		     bool ucast, u64 vec, bool sleep_ok)
{
	struct fw_vi_mac_cmd c;
	u32 val;

	memset(&c, 0, sizeof(c));
	c.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_VI_MAC_CMD) |
				   F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
				   V_FW_VI_ENABLE_CMD_VIID(viid));
	val = V_FW_VI_MAC_CMD_ENTRY_TYPE(FW_VI_MAC_TYPE_HASHVEC) |
	      V_FW_VI_MAC_CMD_HASHUNIEN(ucast) | V_FW_CMD_LEN16(1);
	c.freemacs_to_len16 = cpu_to_be32(val);
	c.u.hash.hashvec = cpu_to_be64(vec);
	return t4_wr_mbox_meat(adap, mbox, &c, sizeof(c), NULL, sleep_ok);
}

/**
 *      t4_enable_vi_params - enable/disable a virtual interface
 *      @adap: the adapter
 *      @mbox: mailbox to use for the FW command
 *      @viid: the VI id
 *      @rx_en: 1=enable Rx, 0=disable Rx
 *      @tx_en: 1=enable Tx, 0=disable Tx
 *      @dcb_en: 1=enable delivery of Data Center Bridging messages.
 *
 *      Enables/disables a virtual interface.  Note that setting DCB Enable
 *      only makes sense when enabling a Virtual Interface ...
 */
int t4_enable_vi_params(struct adapter *adap, unsigned int mbox,
			unsigned int viid, bool rx_en, bool tx_en, bool dcb_en)
{
	struct fw_vi_enable_cmd c;

	memset(&c, 0, sizeof(c));
	c.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_VI_ENABLE_CMD) |
				   F_FW_CMD_REQUEST | F_FW_CMD_EXEC |
				   V_FW_VI_ENABLE_CMD_VIID(viid));
	c.ien_to_len16 = cpu_to_be32(V_FW_VI_ENABLE_CMD_IEN(rx_en) |
				     V_FW_VI_ENABLE_CMD_EEN(tx_en) |
				     V_FW_VI_ENABLE_CMD_DCB_INFO(dcb_en) |
				     FW_LEN16(c));
	return t4_wr_mbox_ns(adap, mbox, &c, sizeof(c), NULL);
}

/**
 *	t4_enable_vi - enable/disable a virtual interface
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@viid: the VI id
 *	@rx_en: 1=enable Rx, 0=disable Rx
 *	@tx_en: 1=enable Tx, 0=disable Tx
 *
 *	Enables/disables a virtual interface.  Note that setting DCB Enable
 *	only makes sense when enabling a Virtual Interface ...
 */
int t4_enable_vi(struct adapter *adap, unsigned int mbox, unsigned int viid,
		 bool rx_en, bool tx_en)
{
	return t4_enable_vi_params(adap, mbox, viid, rx_en, tx_en, 0);
}

/**
 *	t4_enable_pi_params - enable/disable a Port's Virtual Interface
 *      @adap: the adapter
 *      @mbox: mailbox to use for the FW command
 *      @pi: the Port Information structure
 *      @rx_en: 1=enable Rx, 0=disable Rx
 *      @tx_en: 1=enable Tx, 0=disable Tx
 *      @dcb_en: 1=enable delivery of Data Center Bridging messages.
 *
 *      Enables/disables a Port's Virtual Interface.  Note that setting DCB
 *	Enable only makes sense when enabling a Virtual Interface ...
 *	If the Virtual Interface enable/disable operation is successful,
 *	we notify the OS-specific code of a potential Link Status change
 *	via the OS Contract API t4_os_link_changed().
 */
int t4_enable_pi_params(struct adapter *adap, unsigned int mbox,
			struct port_info *pi,
			bool rx_en, bool tx_en, bool dcb_en)
{
	int ret = t4_enable_vi_params(adap, mbox, pi->viid,
				      rx_en, tx_en, dcb_en);
	if (ret)
		return ret;
	t4_os_link_changed(adap, pi->port_id,
			   rx_en && tx_en && pi->link_cfg.link_ok);
	return 0;
}

/**
 *	t4_identify_port - identify a VI's port by blinking its LED
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@viid: the VI id
 *	@nblinks: how many times to blink LED at 2.5 Hz
 *
 *	Identifies a VI's port by blinking its LED.
 */
int t4_identify_port(struct adapter *adap, unsigned int mbox, unsigned int viid,
		     unsigned int nblinks)
{
	struct fw_vi_enable_cmd c;

	memset(&c, 0, sizeof(c));
	c.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_VI_ENABLE_CMD) |
				   F_FW_CMD_REQUEST | F_FW_CMD_EXEC |
				   V_FW_VI_ENABLE_CMD_VIID(viid));
	c.ien_to_len16 = cpu_to_be32(F_FW_VI_ENABLE_CMD_LED | FW_LEN16(c));
	c.blinkdur = cpu_to_be16(nblinks);
	return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}

/**
 *	t4_iq_stop - stop an ingress queue and its FLs
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@pf: the PF owning the queues
 *	@vf: the VF owning the queues
 *	@iqtype: the ingress queue type (FW_IQ_TYPE_FL_INT_CAP, etc.)
 *	@iqid: ingress queue id
 *	@fl0id: FL0 queue id or 0xffff if no attached FL0
 *	@fl1id: FL1 queue id or 0xffff if no attached FL1
 *
 *	Stops an ingress queue and its associated FLs, if any.  This causes
 *	any current or future data/messages destined for these queues to be
 *	tossed.
 */
int t4_iq_stop(struct adapter *adap, unsigned int mbox, unsigned int pf,
	       unsigned int vf, unsigned int iqtype, unsigned int iqid,
	       unsigned int fl0id, unsigned int fl1id)
{
	struct fw_iq_cmd c;

	memset(&c, 0, sizeof(c));
	c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_IQ_CMD) | F_FW_CMD_REQUEST |
				  F_FW_CMD_EXEC | V_FW_IQ_CMD_PFN(pf) |
				  V_FW_IQ_CMD_VFN(vf));
	c.alloc_to_len16 = cpu_to_be32(F_FW_IQ_CMD_IQSTOP | FW_LEN16(c));
	c.type_to_iqandstindex = cpu_to_be32(V_FW_IQ_CMD_TYPE(iqtype));
	c.iqid = cpu_to_be16(iqid);
	c.fl0id = cpu_to_be16(fl0id);
	c.fl1id = cpu_to_be16(fl1id);
	return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}

/**
 *	t4_iq_free - free an ingress queue and its FLs
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@pf: the PF owning the queues
 *	@vf: the VF owning the queues
 *	@iqtype: the ingress queue type (FW_IQ_TYPE_FL_INT_CAP, etc.)
 *	@iqid: ingress queue id
 *	@fl0id: FL0 queue id or 0xffff if no attached FL0
 *	@fl1id: FL1 queue id or 0xffff if no attached FL1
 *
 *	Frees an ingress queue and its associated FLs, if any.
 */
int t4_iq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
	       unsigned int vf, unsigned int iqtype, unsigned int iqid,
	       unsigned int fl0id, unsigned int fl1id)
{
	struct fw_iq_cmd c;

	memset(&c, 0, sizeof(c));
	c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_IQ_CMD) | F_FW_CMD_REQUEST |
				  F_FW_CMD_EXEC | V_FW_IQ_CMD_PFN(pf) |
				  V_FW_IQ_CMD_VFN(vf));
	c.alloc_to_len16 = cpu_to_be32(F_FW_IQ_CMD_FREE | FW_LEN16(c));
	c.type_to_iqandstindex = cpu_to_be32(V_FW_IQ_CMD_TYPE(iqtype));
	c.iqid = cpu_to_be16(iqid);
	c.fl0id = cpu_to_be16(fl0id);
	c.fl1id = cpu_to_be16(fl1id);
	return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}

/**
 *	t4_eth_eq_free - free an Ethernet egress queue
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@pf: the PF owning the queue
 *	@vf: the VF owning the queue
 *	@eqid: egress queue id
 *
 *	Frees an Ethernet egress queue.
 */
int t4_eth_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
		   unsigned int vf, unsigned int eqid)
{
	struct fw_eq_eth_cmd c;

	memset(&c, 0, sizeof(c));
	c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_EQ_ETH_CMD) |
				  F_FW_CMD_REQUEST | F_FW_CMD_EXEC |
				  V_FW_EQ_ETH_CMD_PFN(pf) |
				  V_FW_EQ_ETH_CMD_VFN(vf));
	c.alloc_to_len16 = cpu_to_be32(F_FW_EQ_ETH_CMD_FREE | FW_LEN16(c));
	c.eqid_pkd = cpu_to_be32(V_FW_EQ_ETH_CMD_EQID(eqid));
	return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}

/**
 *	t4_ctrl_eq_free - free a control egress queue
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@pf: the PF owning the queue
 *	@vf: the VF owning the queue
 *	@eqid: egress queue id
 *
 *	Frees a control egress queue.
 */
int t4_ctrl_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
		    unsigned int vf, unsigned int eqid)
{
	struct fw_eq_ctrl_cmd c;

	memset(&c, 0, sizeof(c));
	c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_EQ_CTRL_CMD) |
				  F_FW_CMD_REQUEST | F_FW_CMD_EXEC |
				  V_FW_EQ_CTRL_CMD_PFN(pf) |
				  V_FW_EQ_CTRL_CMD_VFN(vf));
	c.alloc_to_len16 = cpu_to_be32(F_FW_EQ_CTRL_CMD_FREE | FW_LEN16(c));
	c.cmpliqid_eqid = cpu_to_be32(V_FW_EQ_CTRL_CMD_EQID(eqid));
	return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}

/**
 *	t4_ofld_eq_free - free an offload egress queue
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@pf: the PF owning the queue
 *	@vf: the VF owning the queue
 *	@eqid: egress queue id
 *
 *	Frees a control egress queue.
 */
int t4_ofld_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf,
		    unsigned int vf, unsigned int eqid)
{
	struct fw_eq_ofld_cmd c;

	memset(&c, 0, sizeof(c));
	c.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_EQ_OFLD_CMD) |
				  F_FW_CMD_REQUEST | F_FW_CMD_EXEC |
				  V_FW_EQ_OFLD_CMD_PFN(pf) |
				  V_FW_EQ_OFLD_CMD_VFN(vf));
	c.alloc_to_len16 = cpu_to_be32(F_FW_EQ_OFLD_CMD_FREE | FW_LEN16(c));
	c.eqid_pkd = cpu_to_be32(V_FW_EQ_OFLD_CMD_EQID(eqid));
	return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}

/**
 * Return the highest speed set in the port capabilities, in Mb/s.
 */
unsigned int t4_link_fwcap_to_speed(fw_port_cap32_t caps)
{
	#define TEST_SPEED_RETURN(__caps_speed, __speed) \
		do { \
			if (caps & FW_PORT_CAP32_SPEED_##__caps_speed) \
				return __speed; \
		} while (0)

	TEST_SPEED_RETURN(400G, 400000);
	TEST_SPEED_RETURN(200G, 200000);
	TEST_SPEED_RETURN(100G, 100000);
	TEST_SPEED_RETURN(50G,   50000);
	TEST_SPEED_RETURN(40G,   40000);
	TEST_SPEED_RETURN(25G,   25000);
	TEST_SPEED_RETURN(10G,   10000);
	TEST_SPEED_RETURN(1G,     1000);
	TEST_SPEED_RETURN(100M,    100);

	#undef TEST_SPEED_RETURN

	return 0;
}

/**
 *	t4_link_fwcap_to_fwspeed - return highest speed in Port Capabilities
 *	@acaps: advertised Port Capabilities
 *
 *	Get the highest speed for the port from the advertised Port
 *	Capabilities.  It will be either the highest speed from the list of
 *	speeds or whatever user has set using ethtool.
 */
fw_port_cap32_t t4_link_fwcap_to_fwspeed(fw_port_cap32_t acaps)
{
	#define TEST_SPEED_RETURN(__caps_speed) \
		do { \
			if (acaps & FW_PORT_CAP32_SPEED_##__caps_speed) \
				return FW_PORT_CAP32_SPEED_##__caps_speed; \
		} while (0)

	TEST_SPEED_RETURN(400G);
	TEST_SPEED_RETURN(200G);
	TEST_SPEED_RETURN(100G);
	TEST_SPEED_RETURN(50G);
	TEST_SPEED_RETURN(40G);
	TEST_SPEED_RETURN(25G);
	TEST_SPEED_RETURN(10G);
	TEST_SPEED_RETURN(1G);
	TEST_SPEED_RETURN(100M);

	#undef TEST_SPEED_RETURN

	return 0;
}

/**
 *	fwcaps16_to_caps32 - convert 16-bit Port Capabilities to 32-bits
 *	@caps16: a 16-bit Port Capabilities value
 *
 *	Returns the equivalent 32-bit Port Capabilities value.
 */
static fw_port_cap32_t fwcaps16_to_caps32(fw_port_cap16_t caps16)
{
	fw_port_cap32_t caps32 = 0;

	#define CAP16_TO_CAP32(__cap) \
		do { \
			if (caps16 & FW_PORT_CAP_##__cap) \
				caps32 |= FW_PORT_CAP32_##__cap; \
		} while (0)

	CAP16_TO_CAP32(SPEED_100M);
	CAP16_TO_CAP32(SPEED_1G);
	CAP16_TO_CAP32(SPEED_25G);
	CAP16_TO_CAP32(SPEED_10G);
	CAP16_TO_CAP32(SPEED_40G);
	CAP16_TO_CAP32(SPEED_100G);
	CAP16_TO_CAP32(FC_RX);
	CAP16_TO_CAP32(FC_TX);
	CAP16_TO_CAP32(ANEG);
	CAP16_TO_CAP32(FORCE_PAUSE);
	CAP16_TO_CAP32(MDIAUTO);
	CAP16_TO_CAP32(MDISTRAIGHT);
	CAP16_TO_CAP32(FEC_RS);
	CAP16_TO_CAP32(FEC_BASER_RS);
	CAP16_TO_CAP32(802_3_PAUSE);
	CAP16_TO_CAP32(802_3_ASM_DIR);

	#undef CAP16_TO_CAP32

	return caps32;
}

/**
 *	fwcaps32_to_caps16 - convert 32-bit Port Capabilities to 16-bits
 *	@caps32: a 32-bit Port Capabilities value
 *
 *	Returns the equivalent 16-bit Port Capabilities value.  Note that
 *	not all 32-bit Port Capabilities can be represented in the 16-bit
 *	Port Capabilities and some fields/values may not make it.
 */
static fw_port_cap16_t fwcaps32_to_caps16(fw_port_cap32_t caps32)
{
	fw_port_cap16_t caps16 = 0;

	#define CAP32_TO_CAP16(__cap) \
		do { \
			if (caps32 & FW_PORT_CAP32_##__cap) \
				caps16 |= FW_PORT_CAP_##__cap; \
		} while (0)

	CAP32_TO_CAP16(SPEED_100M);
	CAP32_TO_CAP16(SPEED_1G);
	CAP32_TO_CAP16(SPEED_10G);
	CAP32_TO_CAP16(SPEED_25G);
	CAP32_TO_CAP16(SPEED_40G);
	CAP32_TO_CAP16(SPEED_100G);
	CAP32_TO_CAP16(FC_RX);
	CAP32_TO_CAP16(FC_TX);
	CAP32_TO_CAP16(802_3_PAUSE);
	CAP32_TO_CAP16(802_3_ASM_DIR);
	CAP32_TO_CAP16(ANEG);
	CAP32_TO_CAP16(FORCE_PAUSE);
	CAP32_TO_CAP16(MDIAUTO);
	CAP32_TO_CAP16(MDISTRAIGHT);
	CAP32_TO_CAP16(FEC_RS);
	CAP32_TO_CAP16(FEC_BASER_RS);

	#undef CAP32_TO_CAP16

	return caps16;
}

int t4_link_set_autoneg(struct port_info *pi, u8 autoneg,
			fw_port_cap32_t *new_caps)
{
	struct link_config *lc = &pi->link_cfg;
	fw_port_cap32_t caps = *new_caps;

	if (autoneg) {
		if (!(lc->pcaps & FW_PORT_CAP32_ANEG))
			return -ENOTSUP;

		caps |= FW_PORT_CAP32_ANEG;
	} else {
		caps &= ~FW_PORT_CAP32_ANEG;
	}

	caps &= ~V_FW_PORT_CAP32_MDI(M_FW_PORT_CAP32_MDI);
	if (lc->pcaps & FW_PORT_CAP32_MDIAUTO)
		caps |= FW_PORT_CAP32_MDIAUTO;

	*new_caps = caps;
	return 0;
}

int t4_link_set_pause(struct port_info *pi, cc_pause_t pause,
		      fw_port_cap32_t *new_caps)
{
	struct link_config *lc = &pi->link_cfg;
	fw_port_cap32_t caps = *new_caps;

	caps &= ~V_FW_PORT_CAP32_FC(M_FW_PORT_CAP32_FC);
	caps &= ~V_FW_PORT_CAP32_802_3(M_FW_PORT_CAP32_802_3);

	if ((pause & PAUSE_TX) && (pause & PAUSE_RX)) {
		caps |= FW_PORT_CAP32_FC_TX | FW_PORT_CAP32_FC_RX;
		if (lc->pcaps & FW_PORT_CAP32_802_3_PAUSE)
			caps |= FW_PORT_CAP32_802_3_PAUSE;
	} else if (pause & PAUSE_TX) {
		caps |= FW_PORT_CAP32_FC_TX;
		if (lc->pcaps & FW_PORT_CAP32_802_3_ASM_DIR)
			caps |= FW_PORT_CAP32_802_3_ASM_DIR;
	} else if (pause & PAUSE_RX) {
		caps |= FW_PORT_CAP32_FC_RX;
		if (lc->pcaps & FW_PORT_CAP32_802_3_PAUSE)
			caps |= FW_PORT_CAP32_802_3_PAUSE;
		if (lc->pcaps & FW_PORT_CAP32_802_3_ASM_DIR)
			caps |= FW_PORT_CAP32_802_3_ASM_DIR;
	}

	if (!(pause & PAUSE_AUTONEG))
		caps |= FW_PORT_CAP32_FORCE_PAUSE;

	*new_caps = caps;
	return 0;
}

#define T4_LINK_FEC_MASK V_FW_PORT_CAP32_FEC(M_FW_PORT_CAP32_FEC)

static fw_port_cap32_t t4_link_supported_speed_to_fec(u32 speed)
{
	fw_port_cap32_t caps = 0;

	switch (speed) {
	case 100000:
		caps |= FW_PORT_CAP32_FEC_RS;
		break;
	case 50000:
		caps |= FW_PORT_CAP32_FEC_BASER_RS;
		break;
	case 25000:
		caps |= FW_PORT_CAP32_FEC_RS |
			FW_PORT_CAP32_FEC_BASER_RS;
		break;
	default:
		break;
	}

	caps |= FW_PORT_CAP32_FEC_NO_FEC;
	return caps;
}

static void t4_link_update_fec(struct port_info *pi, u32 max_speed,
			       cc_fec_t fec, fw_port_cap32_t *new_caps)
{
	fw_port_cap32_t caps = *new_caps;

	caps &= ~T4_LINK_FEC_MASK;
	if (fec & FEC_RS) {
		switch (max_speed) {
		case 100000:
		case 25000:
			caps |= FW_PORT_CAP32_FEC_RS;
			break;
		default:
			CH_ERR(pi->adapter,
			       "Ignoring unsupported RS FEC for speed %u\n",
			       max_speed);
			break;
		}
	}

	if (fec & FEC_BASER_RS) {
		switch (max_speed) {
		case 50000:
		case 25000:
			caps |= FW_PORT_CAP32_FEC_BASER_RS;
			break;
		default:
			CH_ERR(pi->adapter,
			       "Ignoring unsupported BASER FEC for speed %u\n",
			       max_speed);
			break;
		}
	}

	if (fec & FEC_NONE)
		caps |= FW_PORT_CAP32_FEC_NO_FEC;

	if (!(caps & T4_LINK_FEC_MASK)) {
		/* No explicit encoding is requested.
		 * So, default back to AUTO.
		 */
		caps |= t4_link_supported_speed_to_fec(max_speed);
		caps &= ~FW_PORT_CAP32_FORCE_FEC;
	}

	if (fec & FEC_FORCE)
		caps |= FW_PORT_CAP32_FORCE_FEC;

	*new_caps = caps;
}

int t4_link_set_fec(struct port_info *pi, cc_fec_t fec,
		    fw_port_cap32_t *new_caps)
{
	struct link_config *lc = &pi->link_cfg;
	u32 max_speed;

	if (!(lc->pcaps & T4_LINK_FEC_MASK))
		return -ENOTSUP;

	max_speed = t4_link_fwcap_to_speed(lc->link_caps);
	/* Link might be down. In that case consider the max
	 * speed advertised
	 */
	if (!max_speed)
		max_speed = t4_link_fwcap_to_speed(lc->acaps);

	t4_link_update_fec(pi, max_speed, fec, new_caps);
	return 0;
}

#define T4_LINK_SPEED_MASK V_FW_PORT_CAP32_SPEED(M_FW_PORT_CAP32_SPEED)

int t4_link_set_speed(struct port_info *pi, fw_port_cap32_t speed, u8 en,
		      fw_port_cap32_t *new_caps)
{
	fw_port_cap32_t tcaps, caps = *new_caps;
	struct link_config *lc = &pi->link_cfg;

	if (((lc->pcaps & T4_LINK_SPEED_MASK) & speed) != speed)
		return -ENOTSUP;

	if (en)
		caps |= speed;
	else
		caps &= ~speed;

	/* If no speeds are left, then pick the next highest speed. */
	if (!(caps & T4_LINK_SPEED_MASK)) {
		tcaps = CAP32_SPEED(lc->pcaps);
		tcaps &= ~speed;
		tcaps &= (speed - 1);
		if (tcaps == 0)
			return -EINVAL;

		caps |= t4_link_fwcap_to_fwspeed(tcaps);
	}

	*new_caps = caps;
	return 0;
}

static void t4_link_sanitize_speed_caps(struct link_config *lc,
					fw_port_cap32_t *new_caps)
{
	fw_port_cap32_t tcaps, caps = *new_caps;

	/* Sanitize Speeds when AN is disabled */
	if (!(caps & FW_PORT_CAP32_ANEG)) {
		tcaps = CAP32_SPEED(caps);
		caps &= ~T4_LINK_SPEED_MASK;
		caps |= t4_link_fwcap_to_fwspeed(tcaps);
	}

	*new_caps = caps;
}

static void t4_link_sanitize_fec_caps(struct link_config *lc,
				      fw_port_cap32_t *new_caps)
{
	fw_port_cap32_t tcaps, caps = *new_caps;
	u32 max_speed;

	/* Sanitize FECs when supported */
	if (CAP32_FEC(lc->pcaps)) {
		max_speed = t4_link_fwcap_to_speed(caps);
		tcaps = t4_link_supported_speed_to_fec(max_speed);
		if (caps & FW_PORT_CAP32_FORCE_FEC) {
			/* If the current chosen FEC params are
			 * completely invalid, then disable FEC.
			 * Else, pick only the FECs requested
			 * by user or the defaults supported by
			 * the speed.
			 */
			if (!(tcaps & CAP32_FEC(caps)))
				tcaps = FW_PORT_CAP32_FEC_NO_FEC;
			else
				tcaps &= CAP32_FEC(caps);
		}
	} else {
		/* Always force NO_FEC when FECs are not supported */
		tcaps = FW_PORT_CAP32_FEC_NO_FEC;
	}

	if (lc->pcaps & FW_PORT_CAP32_FORCE_FEC) {
		tcaps |= FW_PORT_CAP32_FORCE_FEC;
	} else {
		/* Older firmware doesn't allow driver to send request
		 * to try multiple FECs for FEC_AUTO case. So, clear
		 * the FEC caps for FEC_AUTO case because the older
		 * firmware will try all supported FECs on its own.
		 */
		caps &= ~FW_PORT_CAP32_FORCE_FEC;
		if (tcaps & (tcaps - 1))
			tcaps = 0;
	}

	caps &= ~T4_LINK_FEC_MASK;
	caps |= tcaps;

	*new_caps = caps;
}

static void t4_link_sanitize_caps(struct link_config *lc,
				  fw_port_cap32_t *new_caps)
{
	fw_port_cap32_t caps = *new_caps;

	t4_link_sanitize_speed_caps(lc, &caps);
	t4_link_sanitize_fec_caps(lc, &caps);

	/* Remove all unsupported caps */
	if ((lc->pcaps | caps) != lc->pcaps)
		caps &= lc->pcaps;

	*new_caps = caps;
}

/**
 *	t4_link_l1cfg_core - apply link configuration to MAC/PHY
 *	@adapter: the adapter
 *	@mbox: the Firmware Mailbox to use
 *	@port: the Port ID
 *	@lc: the Port's Link Configuration
 *	@rcap: new link configuration
 *	@sleep_ok: if true we may sleep while awaiting command completion
 *	@timeout: time to wait for command to finish before timing out
 *		(negative implies @sleep_ok=false)
 *
 *	Set up a port's MAC and PHY according to a desired link configuration.
 *	- If the PHY can auto-negotiate first decide what to advertise, then
 *	  enable/disable auto-negotiation as desired, and reset.
 *	- If the PHY does not auto-negotiate just reset it.
 *	- If auto-negotiation is off set the MAC to the proper speed/duplex/FC,
 *	  otherwise do it later based on the outcome of auto-negotiation.
 */
int t4_link_l1cfg_core(struct adapter *adapter, unsigned int mbox,
		       unsigned int port, struct link_config *lc,
		       fw_port_cap32_t rcap, bool sleep_ok, int timeout)
{
	unsigned int fw_caps = adapter->params.fw_caps_support;
	struct fw_port_cmd cmd;
	int ret;

	t4_link_sanitize_caps(lc, &rcap);

	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_portid = cpu_to_be32(V_FW_CMD_OP(FW_PORT_CMD) |
				       F_FW_CMD_REQUEST | F_FW_CMD_EXEC |
				       V_FW_PORT_CMD_PORTID(port));
	cmd.action_to_len16 =
		cpu_to_be32(V_FW_PORT_CMD_ACTION(fw_caps == FW_CAPS16
						 ? FW_PORT_ACTION_L1_CFG
						 : FW_PORT_ACTION_L1_CFG32) |
			    FW_LEN16(cmd));
	if (fw_caps == FW_CAPS16)
		cmd.u.l1cfg.rcap = cpu_to_be32(fwcaps32_to_caps16(rcap));
	else
		cmd.u.l1cfg32.rcap32 = cpu_to_be32(rcap);
	ret = t4_wr_mbox_meat_timeout(adapter, mbox, &cmd, sizeof(cmd), NULL,
				      sleep_ok, timeout);

	/* Unfortunately, even if the Requested Port Capabilities "fit" within
	 * the Physical Port Capabilities, some combinations of features may
	 * still not be legal.  For example, 40Gb/s and Reed-Solomon Forward
	 * Error Correction.  So if the Firmware rejects the L1 Configure
	 * request, flag that here.
	 */
	if (ret) {
		CH_ERR(adapter,
		       "Requested Port Capabilities 0x%x rejected, error %d\n",
		       rcap, -ret);
		return ret;
	}

	return 0;
}

/**
 *	t4_restart_aneg - restart autonegotiation
 *	@adap: the adapter
 *	@mbox: mbox to use for the FW command
 *	@port: the port id
 *
 *	Restarts autonegotiation for the selected port.
 */
int t4_restart_aneg(struct adapter *adap, unsigned int mbox, unsigned int port)
{
	unsigned int fw_caps = adap->params.fw_caps_support;
	struct fw_port_cmd c;

	memset(&c, 0, sizeof(c));
	c.op_to_portid = cpu_to_be32(V_FW_CMD_OP(FW_PORT_CMD) |
				     F_FW_CMD_REQUEST | F_FW_CMD_EXEC |
				     V_FW_PORT_CMD_PORTID(port));
	c.action_to_len16 =
		cpu_to_be32(V_FW_PORT_CMD_ACTION(fw_caps == FW_CAPS16
						 ? FW_PORT_ACTION_L1_CFG
						 : FW_PORT_ACTION_L1_CFG32) |
			    FW_LEN16(c));
	if (fw_caps == FW_CAPS16)
		c.u.l1cfg.rcap = cpu_to_be32(FW_PORT_CAP_ANEG);
	else
		c.u.l1cfg32.rcap32 = cpu_to_be32(FW_PORT_CAP32_ANEG);
	return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL);
}

/**
 *	t4_init_link_config - initialize a link's SW state
 *	@pi: the port info
 *	@pcaps: link Port Capabilities
 *	@acaps: link current Advertised Port Capabilities
 *
 *	Initializes the SW state maintained for each link, including the link's
 *	capabilities and default speed/flow-control/autonegotiation settings.
 */
static void t4_init_link_config(struct port_info *pi, fw_port_cap32_t pcaps,
				fw_port_cap32_t acaps)
{
	u32 max_speed = t4_link_fwcap_to_speed(acaps);
	struct link_config *lc = &pi->link_cfg;
	fw_port_cap32_t new_caps = acaps;

	/* If initializing for the first time or if port module changed,
	 * then overwrite the saved link params with the new port module
	 * caps.
	 */
	if (lc->admin_caps == 0 || lc->pcaps != pcaps) {
		t4_link_update_fec(pi, max_speed, FEC_AUTO, &new_caps);
		lc->admin_caps = new_caps;
	}

	lc->pcaps = pcaps;
	lc->acaps = acaps;
	lc->lpacaps = 0;
	lc->link_caps = 0;
}

/**
 *	t4_link_down_rc_str - return a string for a Link Down Reason Code
 *	@link_down_rc: Link Down Reason Code
 *
 *	Returns a string representation of the Link Down Reason Code.
 */
const char *t4_link_down_rc_str(unsigned char link_down_rc)
{
	static const char * const reason[] = {
		"Link Down",
		"Remote Fault",
		"Auto-negotiation Failure",
		"Reserved",
		"Insufficient Airflow",
		"Unable To Determine Reason",
		"No RX Signal Detected",
		"Reserved",
	};

	if (link_down_rc >= ARRAY_SIZE(reason))
		return "Bad Reason Code";

	return reason[link_down_rc];
}

/**
 *	lstatus_to_fwcap - translate old lstatus to 32-bit Port Capabilities
 *	@lstatus: old FW_PORT_ACTION_GET_PORT_INFO lstatus value
 *
 *	Translates old FW_PORT_ACTION_GET_PORT_INFO lstatus field into new
 *	32-bit Port Capabilities value.
 */
static fw_port_cap32_t lstatus_to_fwcap(u32 lstatus)
{
	fw_port_cap32_t linkattr = 0;

	/*
	 * Unfortunately the format of the Link Status in the old
	 * 16-bit Port Information message isn't the same as the
	 * 16-bit Port Capabilities bitfield used everywhere else ...
	 */
	if (lstatus & F_FW_PORT_CMD_RXPAUSE)
		linkattr |= FW_PORT_CAP32_FC_RX;
	if (lstatus & F_FW_PORT_CMD_TXPAUSE)
		linkattr |= FW_PORT_CAP32_FC_TX;
	if (lstatus & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_100M))
		linkattr |= FW_PORT_CAP32_SPEED_100M;
	if (lstatus & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_1G))
		linkattr |= FW_PORT_CAP32_SPEED_1G;
	if (lstatus & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_10G))
		linkattr |= FW_PORT_CAP32_SPEED_10G;
	if (lstatus & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_25G))
		linkattr |= FW_PORT_CAP32_SPEED_25G;
	if (lstatus & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_40G))
		linkattr |= FW_PORT_CAP32_SPEED_40G;
	if (lstatus & V_FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_100G))
		linkattr |= FW_PORT_CAP32_SPEED_100G;

	return linkattr;
}

/**
 *	t4_handle_get_port_info - process a FW reply message
 *	@pi: the port info
 *	@rpl: start of the FW message
 *
 *	Processes a GET_PORT_INFO FW reply message.
 */
void t4_handle_get_port_info(struct port_info *pi, const __be64 *rpl)
{
	const struct fw_port_cmd *cmd = (const void *)rpl;
	int action = G_FW_PORT_CMD_ACTION(be32_to_cpu(cmd->action_to_len16));
	struct adapter *adapter = pi->adapter;
	struct link_config *lc = &pi->link_cfg;
	int link_ok, linkdnrc;
	enum fw_port_type port_type;
	enum fw_port_module_type mod_type;
	fw_port_cap32_t pcaps, acaps, lpacaps, linkattr;

	/*
	 * Extract the various fields from the Port Information message.
	 */
	switch (action) {
	case FW_PORT_ACTION_GET_PORT_INFO: {
		u32 lstatus = be32_to_cpu(cmd->u.info.lstatus_to_modtype);

		link_ok = (lstatus & F_FW_PORT_CMD_LSTATUS) != 0;
		linkdnrc = G_FW_PORT_CMD_LINKDNRC(lstatus);
		port_type = G_FW_PORT_CMD_PTYPE(lstatus);
		mod_type = G_FW_PORT_CMD_MODTYPE(lstatus);
		pcaps = fwcaps16_to_caps32(be16_to_cpu(cmd->u.info.pcap));
		acaps = fwcaps16_to_caps32(be16_to_cpu(cmd->u.info.acap));
		lpacaps = fwcaps16_to_caps32(be16_to_cpu(cmd->u.info.lpacap));
		linkattr = lstatus_to_fwcap(lstatus);
		break;
	}

	case FW_PORT_ACTION_GET_PORT_INFO32: {
		u32 lstatus32 = be32_to_cpu(cmd->u.info32.lstatus32_to_cbllen32);

		link_ok = (lstatus32 & F_FW_PORT_CMD_LSTATUS32) != 0;
		linkdnrc = G_FW_PORT_CMD_LINKDNRC32(lstatus32);
		port_type = G_FW_PORT_CMD_PORTTYPE32(lstatus32);
		mod_type = G_FW_PORT_CMD_MODTYPE32(lstatus32);
		pcaps = be32_to_cpu(cmd->u.info32.pcaps32);
		acaps = be32_to_cpu(cmd->u.info32.acaps32);
		lpacaps = be32_to_cpu(cmd->u.info32.lpacaps32);
		linkattr = be32_to_cpu(cmd->u.info32.linkattr32);
		break;
	}

	default:
		CH_ERR(adapter, "Handle Port Information: Bad Command/Action %#x\n",
		       be32_to_cpu(cmd->action_to_len16));
		return;
	}

	/*
	 * Reset state for communicating new Transceiver Module status and
	 * whether the OS-dependent layer wants us to redo the current
	 * "sticky" L1 Configure Link Parameters.
	 */
	lc->new_module = false;
	lc->redo_l1cfg = false;

	if (mod_type != pi->mod_type) {
		/*
		 * Some versions of the early T6 Firmware "cheated" when
		 * handling different Transceiver Modules by changing the
		 * underlaying Port Type reported to the Host Drivers.  As
		 * such we need to capture whatever Port Type the Firmware
		 * sends us and record it in case it's different from what we
		 * were told earlier.  Unfortunately, since Firmware is
		 * forever, we'll need to keep this code here forever, but in
		 * later T6 Firmware it should just be an assignment of the
		 * same value already recorded.
		 */
		pi->port_type = port_type;

		/*
		 * Record new Module Type information.
		 */
		pi->mod_type = mod_type;

		/*
		 * Let the OS-dependent layer know if we have a new
		 * Transceiver Module inserted.
		 */
		lc->new_module = t4_is_inserted_mod_type(mod_type);

		if (lc->new_module)
			t4_init_link_config(pi, pcaps, acaps);
		t4_os_portmod_changed(adapter, pi->port_id);
	}

	if (link_ok != lc->link_ok || acaps != lc->acaps ||
	    lpacaps != lc->lpacaps || linkattr != lc->link_caps) {
		/* something changed */
		if (!link_ok && lc->link_ok) {
			lc->link_down_rc = linkdnrc;
			CH_WARN_RATELIMIT(adapter,
				"Port %d link down, reason: %s\n",
				pi->tx_chan, t4_link_down_rc_str(linkdnrc));
		}

		lc->link_ok = link_ok;
		lc->acaps = acaps;
		lc->lpacaps = lpacaps;
		lc->link_caps = linkattr;

		t4_os_link_changed(adapter, pi->port_id, link_ok);
	}

	/*
	 * If we have a new Transceiver Module and the OS-dependent code has
	 * told us that it wants us to redo whatever "sticky" L1 Configuration
	 * Link Parameters are set, do that now.
	 */
	if (lc->new_module && lc->redo_l1cfg) {
		int ret;

		/*
		 * Save the current L1 Configuration and restore it if an
		 * error occurs.  We probably should fix the l1_cfg*()
		 * routines not to change the link_config when an error
		 * occurs ...
		 */
		ret = t4_link_l1cfg_ns(adapter, adapter->mbox, pi->lport, lc,
				       lc->admin_caps);
		if (ret) {
			CH_WARN(adapter,
				"Attempt to update new Transceiver Module settings failed\n");
		}
	}
	lc->new_module = false;
	lc->redo_l1cfg = false;
}

/**
 *	t4_update_port_info - retrieve and update port information if changed
 *	@pi: the port_info
 *
 *	We issue a Get Port Information Command to the Firmware and, if
 *	successful, we check to see if anything is different from what we
 *	last recorded and update things accordingly.
 */
int t4_update_port_info(struct port_info *pi)
{
	unsigned int fw_caps = pi->adapter->params.fw_caps_support;
	struct fw_port_cmd port_cmd;
	int ret;

	memset(&port_cmd, 0, sizeof port_cmd);
	port_cmd.op_to_portid = cpu_to_be32(V_FW_CMD_OP(FW_PORT_CMD) |
					    F_FW_CMD_REQUEST | F_FW_CMD_READ |
					    V_FW_PORT_CMD_PORTID(pi->lport));
	port_cmd.action_to_len16 = cpu_to_be32(
		V_FW_PORT_CMD_ACTION(fw_caps == FW_CAPS16
				     ? FW_PORT_ACTION_GET_PORT_INFO
				     : FW_PORT_ACTION_GET_PORT_INFO32) |
		FW_LEN16(port_cmd));
	ret = t4_wr_mbox(pi->adapter, pi->adapter->mbox,
			 &port_cmd, sizeof(port_cmd), &port_cmd);
	if (ret)
		return ret;

	t4_handle_get_port_info(pi, (__be64 *)&port_cmd);
	return 0;
}

/**
 *	t4_get_link_params - retrieve basic link parameters for given port
 *	@pi: the port
 *	@link_okp: value return pointer for link up/down
 *	@speedp: value return pointer for speed (Mb/s)
 *	@mtup: value return pointer for mtu
 *
 *	Retrieves basic link parameters for a port: link up/down, speed (Mb/s),
 *	and MTU for a specified port.  A negative error is returned on
 *	failure; 0 on success.
 */
int t4_get_link_params(struct port_info *pi, unsigned int *link_okp,
		       unsigned int *speedp, unsigned int *mtup)
{
	unsigned int fw_caps = pi->adapter->params.fw_caps_support;
	struct fw_port_cmd port_cmd;
	unsigned int action, link_ok, mtu;
	fw_port_cap32_t linkattr;
	int ret;

	memset(&port_cmd, 0, sizeof port_cmd);
	port_cmd.op_to_portid = cpu_to_be32(V_FW_CMD_OP(FW_PORT_CMD) |
					    F_FW_CMD_REQUEST | F_FW_CMD_READ |
					    V_FW_PORT_CMD_PORTID(pi->tx_chan));
	action = (fw_caps == FW_CAPS16
		  ? FW_PORT_ACTION_GET_PORT_INFO
		  : FW_PORT_ACTION_GET_PORT_INFO32);
	port_cmd.action_to_len16 = cpu_to_be32(
		V_FW_PORT_CMD_ACTION(action) |
		FW_LEN16(port_cmd));
	ret = t4_wr_mbox(pi->adapter, pi->adapter->mbox,
			 &port_cmd, sizeof(port_cmd), &port_cmd);
	if (ret)
		return ret;

	if (action == FW_PORT_ACTION_GET_PORT_INFO) {
		u32 lstatus = be32_to_cpu(port_cmd.u.info.lstatus_to_modtype);

		link_ok = !!(lstatus & F_FW_PORT_CMD_LSTATUS);
		linkattr = lstatus_to_fwcap(lstatus);
		mtu = be16_to_cpu(port_cmd.u.info.mtu);;
	} else {
		u32 lstatus32 = be32_to_cpu(port_cmd.u.info32.lstatus32_to_cbllen32);

		link_ok = !!(lstatus32 & F_FW_PORT_CMD_LSTATUS32);
		linkattr = be32_to_cpu(port_cmd.u.info32.linkattr32);
		mtu = G_FW_PORT_CMD_MTU32(
			be32_to_cpu(port_cmd.u.info32.auxlinfo32_mtu32));
	}

	*link_okp = link_ok;
	*speedp = t4_link_fwcap_to_speed(linkattr);
	*mtup = mtu;

	return 0;
}

/**
 *      t4_handle_fw_rpl - process a FW reply message
 *      @adap: the adapter
 *      @rpl: start of the FW message
 *
 *      Processes a FW message, such as link state change messages.
 */
int t4_handle_fw_rpl(struct adapter *adap, const __be64 *rpl)
{
	u8 opcode = *(const u8 *)rpl;

	/*
	 * This might be a port command ... this simplifies the following
	 * conditionals ...  We can get away with pre-dereferencing
	 * action_to_len16 because it's in the first 16 bytes and all messages
	 * will be at least that long.
	 */
	const struct fw_port_cmd *p = (const void *)rpl;
	unsigned int action =
		G_FW_PORT_CMD_ACTION(be32_to_cpu(p->action_to_len16));

	if (opcode == FW_PORT_CMD &&
	    (action == FW_PORT_ACTION_GET_PORT_INFO ||
	     action == FW_PORT_ACTION_GET_PORT_INFO32)) {
		int i;
		int chan = G_FW_PORT_CMD_PORTID(be32_to_cpu(p->op_to_portid));
		struct port_info *pi = NULL;

		for_each_port(adap, i) {
			pi = adap2pinfo(adap, i);
			if (pi->lport == chan)
				break;
		}

		t4_handle_get_port_info(pi, rpl);
	} else {
		CH_WARN_RATELIMIT(adap, "Unknown firmware reply %d\n", opcode);
		return -EINVAL;
	}
	return 0;
}

/**
 *	get_pci_mode - determine a card's PCI mode
 *	@adapter: the adapter
 *	@p: where to store the PCI settings
 *
 *	Determines a card's PCI mode and associated parameters, such as speed
 *	and width.
 */
static void get_pci_mode(struct adapter *adapter,
				   struct pci_params *p)
{
	u16 val;
	u32 pcie_cap;

	pcie_cap = t4_os_find_pci_capability(adapter, PCI_CAP_ID_EXP);
	if (pcie_cap) {
		t4_os_pci_read_cfg2(adapter, pcie_cap + PCI_EXP_LNKSTA, &val);
		p->speed = val & PCI_EXP_LNKSTA_CLS;
		p->width = (val & PCI_EXP_LNKSTA_NLW) >> 4;
	}
}

/**
 *	t4_wait_dev_ready - wait till to reads of registers work
 *
 *	Right after the device is RESET is can take a small amount of time
 *	for it to respond to register reads.  Until then, all reads will
 *	return either 0xff...ff or 0xee...ee.  Return an error if reads
 *	don't work within a reasonable time frame.
 */
int t4_wait_dev_ready(struct adapter *adapter)
{
	u32 whoami;

	whoami = t4_read_reg(adapter, A_PL_WHOAMI);
	if (whoami != 0xffffffff && whoami != X_CIM_PF_NOACCESS)
		return 0;

	msleep(500);
	whoami = t4_read_reg(adapter, A_PL_WHOAMI);
	if (whoami != 0xffffffff && whoami != X_CIM_PF_NOACCESS)
		return 0;

	CH_ERR(adapter, "Device didn't become ready for access, "
	       "whoami = %#x\n", whoami);
	return -EIO;
}

struct flash_desc {
	u32 vendor_and_model_id;
	u32 size_mb;
};

int t4_get_flash_params(struct adapter *adapter)
{
	/*
	 * Table for non-standard supported Flash parts.  Note, all Flash
	 * parts must have 64KB sectors.
	 */
	static struct flash_desc supported_flash[] = {
		{ 0x00150201, 4 << 20 },	/* Spansion 4MB S25FL032P */
	};

	int ret;
	u32 flashid = 0;
	unsigned int part, manufacturer;
	unsigned int density, size = 0;


	/*
	 * Issue a Read ID Command to the Flash part.  We decode supported
	 * Flash parts and their sizes from this.  There's a newer Query
	 * Command which can retrieve detailed geometry information but many
	 * Flash parts don't support it.
	 */
	ret = sf1_write(adapter, 1, 1, 0, SF_RD_ID);
	if (!ret)
		ret = sf1_read(adapter, 3, 0, 1, &flashid);
	t4_write_reg(adapter, A_SF_OP, 0);	/* unlock SF */
	if (ret < 0)
		return ret;

	/*
	 * Check to see if it's one of our non-standard supported Flash parts.
	 */
	for (part = 0; part < ARRAY_SIZE(supported_flash); part++)
		if (supported_flash[part].vendor_and_model_id == flashid) {
			adapter->params.sf_size =
				supported_flash[part].size_mb;
			adapter->params.sf_nsec =
				adapter->params.sf_size / SF_SEC_SIZE;
			goto found;
		}

	/*
	 * Decode Flash part size.  The code below looks repetative with
	 * common encodings, but that's not guaranteed in the JEDEC
	 * specification for the Read JADEC ID command.  The only thing that
	 * we're guaranteed by the JADEC specification is where the
	 * Manufacturer ID is in the returned result.  After that each
	 * Manufacturer ~could~ encode things completely differently.
	 * Note, all Flash parts must have 64KB sectors.
	 */
	manufacturer = flashid & 0xff;
	switch (manufacturer) {
	case 0x20: { /* Micron/Numonix */
		/*
		 * This Density -> Size decoding table is taken from Micron
		 * Data Sheets.
		 */
		density = (flashid >> 16) & 0xff;
		switch (density) {
		case 0x14: size = 1 << 20; break; /*   1MB */
		case 0x15: size = 1 << 21; break; /*   2MB */
		case 0x16: size = 1 << 22; break; /*   4MB */
		case 0x17: size = 1 << 23; break; /*   8MB */
		case 0x18: size = 1 << 24; break; /*  16MB */
		case 0x19: size = 1 << 25; break; /*  32MB */
		case 0x20: size = 1 << 26; break; /*  64MB */
		case 0x21: size = 1 << 27; break; /* 128MB */
		case 0x22: size = 1 << 28; break; /* 256MB */
		}
		break;
	}

	case 0x9d: { /* ISSI -- Integrated Silicon Solution, Inc. */
		/*
		 * This Density -> Size decoding table is taken from ISSI
		 * Data Sheets.
		 */
		density = (flashid >> 16) & 0xff;
		switch (density) {
		case 0x16: size = 1 << 25; break; /*  32MB */
		case 0x17: size = 1 << 26; break; /*  64MB */
		}
		break;
	}

	case 0xc2: { /* Macronix */
		/*
		 * This Density -> Size decoding table is taken from Macronix
		 * Data Sheets.
		 */
		density = (flashid >> 16) & 0xff;
		switch (density) {
		case 0x17: size = 1 << 23; break; /*   8MB */
		case 0x18: size = 1 << 24; break; /*  16MB */
		}
		break;
	}

	case 0xef: { /* Winbond */
		/*
		 * This Density -> Size decoding table is taken from Winbond
		 * Data Sheets.
		 */
		density = (flashid >> 16) & 0xff;
		switch (density) {
		case 0x17: size = 1 << 23; break; /*   8MB */
		case 0x18: size = 1 << 24; break; /*  16MB */
		}
		break;
	}
	}

	/*
	 * If we didn't recognize the FLASH part, that's no real issue: the
	 * Hardware/Software contract says that Hardware will _*ALWAYS*_
	 * use a FLASH part which is at least 4MB in size and has 64KB
	 * sectors.  The unrecognized FLASH part is likely to be much larger
	 * than 4MB, but that's all we really need.
	 */
	if (size == 0) {
		CH_WARN(adapter, "Unknown Flash Part, ID = %#x, assuming 4MB\n", flashid);
		size = 1 << 22;
	}

	/*
	 * Store decoded Flash size and fall through into vetting code.
	 */
	adapter->params.sf_size = size;
	adapter->params.sf_nsec = size / SF_SEC_SIZE;

 found:
	/*
	 * We should ~probably~ reject adapters with FLASHes which are too
	 * small but we have some legacy FPGAs with small FLASHes that we'd
	 * still like to use.  So instead we emit a scary message ...
	 */
	if (adapter->params.sf_size < FLASH_MIN_SIZE)
		CH_WARN(adapter, "WARNING: Flash Part ID %#x, size %#x < %#x\n",
			flashid, adapter->params.sf_size, FLASH_MIN_SIZE);

	return 0;
}

static void set_pcie_completion_timeout(struct adapter *adapter,
						  u8 range)
{
	u16 val;
	u32 pcie_cap;

	pcie_cap = t4_os_find_pci_capability(adapter, PCI_CAP_ID_EXP);
	if (pcie_cap) {
		t4_os_pci_read_cfg2(adapter, pcie_cap + PCI_EXP_DEVCTL2, &val);
		val &= 0xfff0;
		val |= range ;
		t4_os_pci_write_cfg2(adapter, pcie_cap + PCI_EXP_DEVCTL2, val);
	}
}

/**
 *	t4_get_chip_type - Determine chip type from device ID
 *	@adap: the adapter
 *	@ver: adapter version
 */
enum chip_type t4_get_chip_type(struct adapter *adap, int ver)
{
	enum chip_type chip = 0;
	u32 pl_rev = G_REV(t4_read_reg(adap, A_PL_REV));

	/* Retrieve adapter's device ID */
	switch (ver) {
		case CHELSIO_T4_FPGA:
			chip |= CHELSIO_CHIP_FPGA;
			/*FALLTHROUGH*/
		case CHELSIO_T4:
			chip |= CHELSIO_CHIP_CODE(CHELSIO_T4, pl_rev);
			break;
		case CHELSIO_T5_FPGA:
			chip |= CHELSIO_CHIP_FPGA;
			/*FALLTHROUGH*/
		case CHELSIO_T5:
			chip |= CHELSIO_CHIP_CODE(CHELSIO_T5, pl_rev);
			break;
		case CHELSIO_T6_FPGA:
			chip |= CHELSIO_CHIP_FPGA;
			/*FALLTHROUGH*/
		case CHELSIO_T6:
			chip |= CHELSIO_CHIP_CODE(CHELSIO_T6, pl_rev);
			break;
		default:
			CH_ERR(adap, "Device %d is not supported\n",
			       adap->params.pci.device_id);
			return -EINVAL;
	}

	/* T4A1 chip is no longer supported */
	if (chip == T4_A1) {
		CH_ALERT(adap, "T4 rev 1 chip is no longer supported\n");
		return -EINVAL;
	}
	return chip;
}

/**
 *	t4_prep_pf - prepare SW and HW for PF operation
 *	@adapter: the adapter
 *
 *	Initialize adapter SW state for the various HW modules, set initial
 *	values for some adapter tunables on each PF.
 */
int t4_prep_pf(struct adapter *adapter)
{
	int ret, ver;

	ret = t4_wait_dev_ready(adapter);
	if (ret < 0)
		return ret;

	get_pci_mode(adapter, &adapter->params.pci);


	/* Retrieve adapter's device ID
	 */
	t4_os_pci_read_cfg2(adapter, PCI_DEVICE_ID, &adapter->params.pci.device_id);
	t4_os_pci_read_cfg2(adapter, PCI_VENDOR_ID, &adapter->params.pci.vendor_id);

	ver = CHELSIO_PCI_ID_VER(adapter->params.pci.device_id);
	adapter->params.chip = t4_get_chip_type(adapter, ver);
	if (is_t4(adapter->params.chip)) {
		adapter->params.arch.sge_fl_db = F_DBPRIO;
		adapter->params.arch.mps_tcam_size =
				 NUM_MPS_CLS_SRAM_L_INSTANCES;
		adapter->params.arch.mps_rplc_size = 128;
		adapter->params.arch.nchan = NCHAN;
		adapter->params.arch.pm_stats_cnt = PM_NSTATS;
		adapter->params.arch.vfcount = 128;
		/* Congestion map is for 4 channels so that
		 * MPS can have 4 priority per port.
		 */
		adapter->params.arch.cng_ch_bits_log = 2;
	} else if (is_t5(adapter->params.chip)) {
		adapter->params.arch.sge_fl_db = F_DBPRIO | F_DBTYPE;
		adapter->params.arch.mps_tcam_size =
				 NUM_MPS_T5_CLS_SRAM_L_INSTANCES;
		adapter->params.arch.mps_rplc_size = 128;
		adapter->params.arch.nchan = NCHAN;
		adapter->params.arch.pm_stats_cnt = PM_NSTATS;
		adapter->params.arch.vfcount = 128;
		adapter->params.arch.cng_ch_bits_log = 2;
	} else if (is_t6(adapter->params.chip)) {
		adapter->params.arch.sge_fl_db = 0;
		adapter->params.arch.mps_tcam_size =
				 NUM_MPS_T5_CLS_SRAM_L_INSTANCES;
		adapter->params.arch.mps_rplc_size = 256;
		adapter->params.arch.nchan = 2;
		adapter->params.arch.pm_stats_cnt = T6_PM_NSTATS;
		adapter->params.arch.vfcount = 256;
		/* Congestion map will be for 2 channels so that
		 * MPS can have 8 priority per port.
		 */
		adapter->params.arch.cng_ch_bits_log = 3;
	} else {
		CH_ERR(adapter, "Device %d is not supported\n",
			adapter->params.pci.device_id);
		return -EINVAL;
	}

	adapter->params.pci.vpd_cap_addr =
		t4_os_find_pci_capability(adapter, PCI_CAP_ID_VPD);

	if (is_fpga(adapter->params.chip)) {
		/* FPGA */
		adapter->params.cim_la_size = 2 * CIMLA_SIZE;
	} else {
		/* ASIC */
		adapter->params.cim_la_size = CIMLA_SIZE;
	}

	init_cong_ctrl(adapter->params.a_wnd, adapter->params.b_wnd);

	/*
	 * Default port and clock for debugging in case we can't reach FW.
	 */
	adapter->params.nports = 1;
	adapter->params.portvec = 1;
	adapter->params.vpd.cclk = 50000;

	/* Set pci completion timeout value to 4 seconds. */
	set_pcie_completion_timeout(adapter, 0xd);
	return 0;
}

/**
 *      t4_prep_master_pf - prepare SW for master PF operations
 *      @adapter: the adapter
 *
 */
int t4_prep_master_pf(struct adapter *adapter)
{
	int ret;

	ret = t4_prep_pf(adapter);
	if (ret < 0)
		return ret;

	ret = t4_get_flash_params(adapter);
	if (ret < 0) {
		CH_ERR(adapter,
		       "Unable to retrieve Flash parameters ret = %d\n", -ret);
		return ret;
	}

	return 0;
}

/**
 *      t4_prep_adapter - prepare SW and HW for operation
 *      @adapter: the adapter
 *      @reset: if true perform a HW reset
 *
 *      Initialize adapter SW state for the various HW modules, set initial
 *      values for some adapter tunables.
 */
int t4_prep_adapter(struct adapter *adapter, bool reset)
{
	return t4_prep_master_pf(adapter);
}

/**
 *	t4_shutdown_adapter - shut down adapter, host & wire
 *	@adapter: the adapter
 *
 *	Perform an emergency shutdown of the adapter and stop it from
 *	continuing any further communication on the ports or DMA to the
 *	host.  This is typically used when the adapter and/or firmware
 *	have crashed and we want to prevent any further accidental
 *	communication with the rest of the world.  This will also force
 *	the port Link Status to go down -- if register writes work --
 *	which should help our peers figure out that we're down.
 */
int t4_shutdown_adapter(struct adapter *adapter)
{
	int port;

	t4_intr_disable(adapter);
	t4_write_reg(adapter, A_DBG_GPIO_EN, 0);
	for_each_port(adapter, port) {
		u32 a_port_cfg = is_t4(adapter->params.chip) ?
				 PORT_REG(port, A_XGMAC_PORT_CFG) :
				 T5_PORT_REG(port, A_MAC_PORT_CFG);

		t4_write_reg(adapter, a_port_cfg,
			     t4_read_reg(adapter, a_port_cfg)
			     & ~V_SIGNAL_DET(1));
	}
	t4_set_reg_field(adapter, A_SGE_CONTROL, F_GLOBALENABLE, 0);

	return 0;
}

/**
 *	t4_bar2_sge_qregs - return BAR2 SGE Queue register information
 *	@adapter: the adapter
 *	@qid: the Queue ID
 *	@qtype: the Ingress or Egress type for @qid
 *	@user: true if this request is for a user mode queue
 *	@pbar2_qoffset: BAR2 Queue Offset
 *	@pbar2_qid: BAR2 Queue ID or 0 for Queue ID inferred SGE Queues
 *
 *	Returns the BAR2 SGE Queue Registers information associated with the
 *	indicated Absolute Queue ID.  These are passed back in return value
 *	pointers.  @qtype should be T4_BAR2_QTYPE_EGRESS for Egress Queue
 *	and T4_BAR2_QTYPE_INGRESS for Ingress Queues.
 *
 *	This may return an error which indicates that BAR2 SGE Queue
 *	registers aren't available.  If an error is not returned, then the
 *	following values are returned:
 *
 *	  *@pbar2_qoffset: the BAR2 Offset of the @qid Registers
 *	  *@pbar2_qid: the BAR2 SGE Queue ID or 0 of @qid
 *
 *	If the returned BAR2 Queue ID is 0, then BAR2 SGE registers which
 *	require the "Inferred Queue ID" ability may be used.  E.g. the
 *	Write Combining Doorbell Buffer. If the BAR2 Queue ID is not 0,
 *	then these "Inferred Queue ID" register may not be used.
 */
int t4_bar2_sge_qregs(struct adapter *adapter,
		      unsigned int qid,
		      enum t4_bar2_qtype qtype,
		      int user,
		      u64 *pbar2_qoffset,
		      unsigned int *pbar2_qid)
{
	unsigned int page_shift, page_size, qpp_shift, qpp_mask;
	u64 bar2_page_offset, bar2_qoffset;
	unsigned int bar2_qid, bar2_qid_offset, bar2_qinferred;

	/* T4 doesn't support BAR2 SGE Queue registers for kernel
	 * mode queues.
	 */
	if (!user && is_t4(adapter->params.chip))
		return -EINVAL;

	/* Get our SGE Page Size parameters.
	 */
	page_shift = adapter->params.sge.hps + 10;
	page_size = 1 << page_shift;

	/* Get the right Queues per Page parameters for our Queue.
	 */
	qpp_shift = (qtype == T4_BAR2_QTYPE_EGRESS
		     ? adapter->params.sge.eq_qpp
		     : adapter->params.sge.iq_qpp);
	qpp_mask = (1 << qpp_shift) - 1;

	/* Calculate the basics of the BAR2 SGE Queue register area:
	 *  o The BAR2 page the Queue registers will be in.
	 *  o The BAR2 Queue ID.
	 *  o The BAR2 Queue ID Offset into the BAR2 page.
	 */
	bar2_page_offset = ((u64)(qid >> qpp_shift) << page_shift);
	bar2_qid = qid & qpp_mask;
	bar2_qid_offset = bar2_qid * SGE_UDB_SIZE;

	/* If the BAR2 Queue ID Offset is less than the Page Size, then the
	 * hardware will infer the Absolute Queue ID simply from the writes to
	 * the BAR2 Queue ID Offset within the BAR2 Page (and we need to use a
	 * BAR2 Queue ID of 0 for those writes).  Otherwise, we'll simply
	 * write to the first BAR2 SGE Queue Area within the BAR2 Page with
	 * the BAR2 Queue ID and the hardware will infer the Absolute Queue ID
	 * from the BAR2 Page and BAR2 Queue ID.
	 *
	 * One important censequence of this is that some BAR2 SGE registers
	 * have a "Queue ID" field and we can write the BAR2 SGE Queue ID
	 * there.  But other registers synthesize the SGE Queue ID purely
	 * from the writes to the registers -- the Write Combined Doorbell
	 * Buffer is a good example.  These BAR2 SGE Registers are only
	 * available for those BAR2 SGE Register areas where the SGE Absolute
	 * Queue ID can be inferred from simple writes.
	 */
	bar2_qoffset = bar2_page_offset;
	bar2_qinferred = (bar2_qid_offset < page_size);
	if (bar2_qinferred) {
		bar2_qoffset += bar2_qid_offset;
		bar2_qid = 0;
	}

	*pbar2_qoffset = bar2_qoffset;
	*pbar2_qid = bar2_qid;
	return 0;
}

/**
 *	t4_init_devlog_params - initialize adapter->params.devlog
 *	@adap: the adapter
 *	@fw_attach: whether we can talk to the firmware
 *
 *	Initialize various fields of the adapter's Firmware Device Log
 *	Parameters structure.
 */
int t4_init_devlog_params(struct adapter *adap, int fw_attach)
{
	struct devlog_params *dparams = &adap->params.devlog;
	u32 pf_dparams;
	unsigned int devlog_meminfo;
	struct fw_devlog_cmd devlog_cmd;
	int ret;

	/* If we're dealing with newer firmware, the Device Log Paramerters
	 * are stored in a designated register which allows us to access the
	 * Device Log even if we can't talk to the firmware.
	 */
	pf_dparams =
		t4_read_reg(adap, PCIE_FW_REG(A_PCIE_FW_PF, PCIE_FW_PF_DEVLOG));
	if (pf_dparams) {
		unsigned int nentries, nentries128;

		dparams->memtype = G_PCIE_FW_PF_DEVLOG_MEMTYPE(pf_dparams);
		dparams->start = G_PCIE_FW_PF_DEVLOG_ADDR16(pf_dparams) << 4;

		nentries128 = G_PCIE_FW_PF_DEVLOG_NENTRIES128(pf_dparams);
		nentries = (nentries128 + 1) * 128;
		dparams->size = nentries * sizeof(struct fw_devlog_e);

		return 0;
	}

	/*
	 * For any failing returns ...
	 */
	memset(dparams, 0, sizeof *dparams);

	/*
	 * If we can't talk to the firmware, there's really nothing we can do
	 * at this point.
	 */
	if (!fw_attach)
		return -ENXIO;

	/* Otherwise, ask the firmware for it's Device Log Parameters.
	 */
	memset(&devlog_cmd, 0, sizeof devlog_cmd);
	devlog_cmd.op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_DEVLOG_CMD) |
					     F_FW_CMD_REQUEST | F_FW_CMD_READ);
	devlog_cmd.retval_len16 = cpu_to_be32(FW_LEN16(devlog_cmd));
	ret = t4_wr_mbox(adap, adap->mbox, &devlog_cmd, sizeof(devlog_cmd),
			 &devlog_cmd);
	if (ret)
		return ret;

	devlog_meminfo =
		be32_to_cpu(devlog_cmd.memtype_devlog_memaddr16_devlog);
	dparams->memtype = G_FW_DEVLOG_CMD_MEMTYPE_DEVLOG(devlog_meminfo);
	dparams->start = G_FW_DEVLOG_CMD_MEMADDR16_DEVLOG(devlog_meminfo) << 4;
	dparams->size = be32_to_cpu(devlog_cmd.memsize_devlog);

	return 0;
}

/**
 *	t4_init_sge_params - initialize adap->params.sge
 *	@adapter: the adapter
 *
 *	Initialize various fields of the adapter's SGE Parameters structure.
 */
int t4_init_sge_params(struct adapter *adapter)
{
	struct sge_params *sge_params = &adapter->params.sge;
	u32 hps, qpp;
	unsigned int s_hps, s_qpp;

	/* Extract the SGE Page Size for our PF.
	 */
	hps = t4_read_reg(adapter, A_SGE_HOST_PAGE_SIZE);
	s_hps = (S_HOSTPAGESIZEPF0 +
		 (S_HOSTPAGESIZEPF1 - S_HOSTPAGESIZEPF0) * adapter->pf);
	sge_params->hps = ((hps >> s_hps) & M_HOSTPAGESIZEPF0);

	/* Extract the SGE Egress and Ingess Queues Per Page for our PF.
	 */
	s_qpp = (S_QUEUESPERPAGEPF0 +
		(S_QUEUESPERPAGEPF1 - S_QUEUESPERPAGEPF0) * adapter->pf);
	qpp = t4_read_reg(adapter, A_SGE_EGRESS_QUEUES_PER_PAGE_PF);
	sge_params->eq_qpp = ((qpp >> s_qpp) & M_QUEUESPERPAGEPF0);
	qpp = t4_read_reg(adapter, A_SGE_INGRESS_QUEUES_PER_PAGE_PF);
	sge_params->iq_qpp = ((qpp >> s_qpp) & M_QUEUESPERPAGEPF0);

	return 0;
}

/**
 *      t4_init_tp_params - initialize adap->params.tp
 *      @adap: the adapter
 * 	@sleep_ok: if true we may sleep while awaiting command completion
 *
 *      Initialize various fields of the adapter's TP Parameters structure.
 */
int t4_init_tp_params(struct adapter *adap, bool sleep_ok)
{
	u32 param, val, v;
	int chan, ret;

	v = t4_read_reg(adap, A_TP_TIMER_RESOLUTION);
	adap->params.tp.tre = G_TIMERRESOLUTION(v);
	adap->params.tp.dack_re = G_DELAYEDACKRESOLUTION(v);

	/* MODQ_REQ_MAP defaults to setting queues 0-3 to chan 0-3 */
	for (chan = 0; chan < NCHAN; chan++)
		adap->params.tp.tx_modq[chan] = chan;

	/* Cache the adapter's Compressed Filter Mode/Mask and global Ingress
	 * Configuration.
	 */

	param = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
		 V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_FILTER) |
		 V_FW_PARAMS_PARAM_Y(FW_PARAM_DEV_FILTER_MODE_MASK));

	/* Read current value */
	ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1,
			      &param, &val);
	if (ret == 0) {
		CH_INFO(adap,
			 "Current filter mode/mask 0x%x:0x%x\n",
			 G_FW_PARAMS_PARAM_FILTER_MODE(val),
			 G_FW_PARAMS_PARAM_FILTER_MASK(val));
		adap->params.tp.vlan_pri_map = G_FW_PARAMS_PARAM_FILTER_MODE(val);
		adap->params.tp.filter_mask = G_FW_PARAMS_PARAM_FILTER_MASK(val);
	} else {
		CH_WARN(adap,
			 "Reading filter mode/mask not supported via fw api, "
			 "falling back to older indirect-reg-read \n");

		/* Incase of older-fw (which doesn't expose the api
		 * FW_PARAM_DEV_FILTER_MODE_MASK) and newer-driver (which uses
		 * the fw api) combination, fall-back to older method of reading
		 * the filter mode from indirect-register
		 */
		t4_tp_pio_read(adap, &adap->params.tp.vlan_pri_map, 1,
			       A_TP_VLAN_PRI_MAP, sleep_ok);

		/* With the older-fw and newer-driver combination we might run
		 * into an issue when user wants to use hash filter region but
		 * the filter_mask is zero, in this case filter_mask validation
		 * is tough. To avoid that we set the filter_mask same as filter
		 * mode, which will behave exactly as the older way of ignoring
		 * the filter mask validation.
		 */
		adap->params.tp.filter_mask = adap->params.tp.vlan_pri_map;
	}

	t4_tp_pio_read(adap, &adap->params.tp.ingress_config, 1,
		       A_TP_INGRESS_CONFIG, sleep_ok);

	/* For T6, cache the adapter's compressed error vector
	 * and passing outer header info for encapsulated packets.
	 */
	if (CHELSIO_CHIP_VERSION(adap->params.chip) > CHELSIO_T5) {
		v = t4_read_reg(adap, A_TP_OUT_CONFIG);
		adap->params.tp.rx_pkt_encap = (v & F_CRXPKTENC) ? 1 : 0;
	}

	/* Now that we have TP_VLAN_PRI_MAP cached, we can calculate the field
	 * shift positions of several elements of the Compressed Filter Tuple
	 * for this adapter which we need frequently ...
	 */
	adap->params.tp.fcoe_shift = t4_filter_field_shift(adap, F_FCOE);
	adap->params.tp.port_shift = t4_filter_field_shift(adap, F_PORT);
	adap->params.tp.vnic_shift = t4_filter_field_shift(adap, F_VNIC_ID);
	adap->params.tp.vlan_shift = t4_filter_field_shift(adap, F_VLAN);
	adap->params.tp.tos_shift = t4_filter_field_shift(adap, F_TOS);
	adap->params.tp.protocol_shift = t4_filter_field_shift(adap, F_PROTOCOL);
	adap->params.tp.ethertype_shift = t4_filter_field_shift(adap,
								F_ETHERTYPE);
	adap->params.tp.macmatch_shift = t4_filter_field_shift(adap,
								F_MACMATCH);
	adap->params.tp.matchtype_shift = t4_filter_field_shift(adap,
								F_MPSHITTYPE);
	adap->params.tp.frag_shift = t4_filter_field_shift(adap,
							   F_FRAGMENTATION);
	return 0;
}

/**
 *      t4_filter_field_shift - calculate filter field shift
 *      @adap: the adapter
 *      @filter_sel: the desired field (from TP_VLAN_PRI_MAP bits)
 *
 *      Return the shift position of a filter field within the Compressed
 *      Filter Tuple.  The filter field is specified via its selection bit
 *      within TP_VLAN_PRI_MAL (filter mode).  E.g. F_VLAN.
 */
int t4_filter_field_shift(const struct adapter *adap, int filter_sel)
{
	unsigned int filter_mode = adap->params.tp.vlan_pri_map;
	unsigned int sel;
	int field_shift;

	if ((filter_mode & filter_sel) == 0)
		return -1;

	for (sel = 1, field_shift = 0; sel < filter_sel; sel <<= 1) {
		switch (filter_mode & sel) {
		case F_FCOE:
			field_shift += W_FT_FCOE;
			break;
		case F_PORT:
			field_shift += W_FT_PORT;
			break;
		case F_VNIC_ID:
			field_shift += W_FT_VNIC_ID;
			break;
		case F_VLAN:
			field_shift += W_FT_VLAN;
			break;
		case F_TOS:
			field_shift += W_FT_TOS;
			break;
		case F_PROTOCOL:
			field_shift += W_FT_PROTOCOL;
			break;
		case F_ETHERTYPE:
			field_shift += W_FT_ETHERTYPE;
			break;
		case F_MACMATCH:
			field_shift += W_FT_MACMATCH;
			break;
		case F_MPSHITTYPE:
			field_shift += W_FT_MPSHITTYPE;
			break;
		case F_FRAGMENTATION:
			field_shift += W_FT_FRAGMENTATION;
			break;
		}
	}
	return field_shift;
}

/**
 *	t4_create_filter_info - return Compressed Filter Value/Mask tuple
 *	@adapter: the adapter
 *	@filter_value: Filter Value return value pointer
 *	@filter_mask: Filter Mask return value pointer
 *	@fcoe: FCoE filter selection
 *	@port: physical port filter selection
 *	@vnic: Virtual NIC ID filter selection
 *	@vlan: VLAN ID filter selection
 *	@vlan_pcp: VLAN Priority Code Point
 *	@vlan_dei: VLAN Drop Eligibility Indicator
 *	@tos: Type Of Server filter selection
 *	@protocol: IP Protocol filter selection
 *	@ethertype: Ethernet Type filter selection
 *	@macmatch: MPS MAC Index filter selection
 *	@matchtype: MPS Hit Type filter selection
 *	@frag: IP Fragmentation filter selection
 *
 *	Construct a Compressed Filter Value/Mask tuple based on a set of
 *	"filter selection" values.  For each passed filter selection value
 *	which is greater than or equal to 0, we put that value into the
 *	constructed Filter Value and the appropriate mask into the Filter
 *	Mask.  If a filter selections is specified which is not currently
 *	configured into the hardware, an error will be returned.  Otherwise
 *	the constructed FIlter Value/Mask tuple will be returned via the
 *	specified return value pointers and success will be returned.
 *
 *	All filter selection values and the returned Filter Value/Mask values
 *	are in Host-Endian format.
 */
int t4_create_filter_info(const struct adapter *adapter,
			  u64 *filter_value, u64 *filter_mask,
			  int fcoe, int port, int vnic,
			  int vlan, int vlan_pcp, int vlan_dei,
			  int tos, int protocol, int ethertype,
			  int macmatch, int matchtype, int frag)
{
	const struct tp_params *tp = &adapter->params.tp;
	u64 v, m;

	/*
	 * If any selected filter field isn't enabled, return an error.
	 */
	#define BAD_FILTER(__field) \
		((__field) >= 0 && tp->__field##_shift < 0)
	if (BAD_FILTER(fcoe)       ||
	    BAD_FILTER(port)       ||
	    BAD_FILTER(vnic)       ||
	    BAD_FILTER(vlan)       ||
	    BAD_FILTER(tos)        ||
	    BAD_FILTER(protocol)   ||
	    BAD_FILTER(ethertype)  ||
	    BAD_FILTER(macmatch)   ||
	    BAD_FILTER(matchtype) ||
	    BAD_FILTER(frag))
		return -EINVAL;
	#undef BAD_FILTER

	/*
	 * We have to have VLAN ID selected if we want to also select on
	 * either the Priority Code Point or Drop Eligibility Indicator
	 * fields.
	 */
	if ((vlan_pcp >= 0 || vlan_dei >= 0) && vlan < 0)
		return -EINVAL;

	/*
	 * Construct Filter Value and Mask.
	 */
	v = m = 0;
	#define SET_FILTER_FIELD(__field, __width) \
	do { \
		if ((__field) >= 0) { \
			const int shift = tp->__field##_shift; \
			\
			v |= (__field) << shift; \
			m |= ((1ULL << (__width)) - 1) << shift; \
		} \
	} while (0)
	SET_FILTER_FIELD(fcoe,      W_FT_FCOE);
	SET_FILTER_FIELD(port,      W_FT_PORT);
	SET_FILTER_FIELD(tos,       W_FT_TOS);
	SET_FILTER_FIELD(protocol,  W_FT_PROTOCOL);
	SET_FILTER_FIELD(ethertype, W_FT_ETHERTYPE);
	SET_FILTER_FIELD(macmatch,  W_FT_MACMATCH);
	SET_FILTER_FIELD(matchtype, W_FT_MPSHITTYPE);
	SET_FILTER_FIELD(frag,      W_FT_FRAGMENTATION);
	#undef SET_FILTER_FIELD

	/*
	 * We handle VNIC ID and VLANs separately because they're slightly
	 * different than the rest of the fields.  Both require that a
	 * corresponding "valid" bit be set in the Filter Value and Mask.
	 * These bits are in the top bit of the field.  Additionally, we can
	 * select the Priority Code Point and Drop Eligibility Indicator
	 * fields for VLANs as an option.  Remember that the format of a VLAN
	 * Tag is:
	 *
	 * bits: 3  1      12
	 *     +---+-+------------+
	 *     |PCP|D|   VLAN ID  |
	 *     +---+-+------------+
	 */
	if (vnic >= 0) {
		v |= ((1ULL << (W_FT_VNIC_ID-1)) | vnic) << tp->vnic_shift;
		m |= ((1ULL << W_FT_VNIC_ID) - 1) << tp->vnic_shift;
	}
	if (vlan >= 0) {
		v |= ((1ULL << (W_FT_VLAN-1)) | vlan)  << tp->vlan_shift;
		m |= ((1ULL << (W_FT_VLAN-1)) | 0xfff) << tp->vlan_shift;

		if (vlan_dei >= 0) {
			v |= vlan_dei << (tp->vlan_shift + 12);
			m |= 0x7      << (tp->vlan_shift + 12);
		}
		if (vlan_pcp >= 0) {
			v |= vlan_pcp << (tp->vlan_shift + 13);
			m |= 0x7      << (tp->vlan_shift + 13);
		}
	}

	/*
	 * Pass back computed Filter Value and Mask; return success.
	 */
	*filter_value = v;
	*filter_mask = m;
	return 0;
}

int t4_init_rss_mode(struct adapter *adap, int mbox)
{
	int i, ret;
	struct fw_rss_vi_config_cmd rvc;

	memset(&rvc, 0, sizeof(rvc));

	for_each_port(adap, i) {
		struct port_info *p = adap2pinfo(adap, i);
		rvc.op_to_viid =
			cpu_to_be32(V_FW_CMD_OP(FW_RSS_VI_CONFIG_CMD) |
				    F_FW_CMD_REQUEST | F_FW_CMD_READ |
				    V_FW_RSS_VI_CONFIG_CMD_VIID(p->viid));
		rvc.retval_len16 = cpu_to_be32(FW_LEN16(rvc));
		ret = t4_wr_mbox(adap, mbox, &rvc, sizeof(rvc), &rvc);
		if (ret)
			return ret;
		p->rss_mode = be32_to_cpu(rvc.u.basicvirtual.defaultq_to_udpen);
	}
	return 0;
}

static int t4_init_portmirror(struct port_info *pi, int mbox,
		       int port, int pf, int vf)
{
	struct adapter *adapter = pi->adapter;
	int ret;
	u8 vivld = 0, vin = 0;

	ret = t4_alloc_vi(pi->adapter, mbox, port, pf, vf, 1, NULL, NULL,
			  &vivld, &vin);
	if (ret < 0)
		return ret;

	pi->viid_mirror = ret;

	/* If fw supports returning the VIN as part of FW_VI_CMD,
	 * save the returned values.
	 */
	if (adapter->params.viid_smt_extn_support) {
		pi->vivld_mirror = vivld;
		pi->vin_mirror = vin;
	} else {
		/* Retrieve the values from VIID */
		pi->vivld_mirror = G_FW_VIID_VIVLD(pi->viid_mirror);
		pi->vin_mirror = G_FW_VIID_VIN(pi->viid_mirror);
	}

	CH_INFO(pi->adapter, "Port %d Traffic Mirror PF = %u; VF = %u\n",
		port, pf, pi->vin_mirror);
	return 0;
}

int t4_mirror_init(struct adapter *adap, int mbox, int pf, int vf,
		   bool enable_ringbb)
{
	int ret, i, j = 0;

	for_each_port(adap, i) {
		struct port_info *pi = adap2pinfo(adap, i);

		/* We want mirroring only on Port0 for ringbackbone
		 * configuration.
		 */
		if (enable_ringbb && i)
			break;
		while ((adap->params.portvec & (1 << j)) == 0)
			j++;

		ret = t4_init_portmirror(pi, mbox, j, pf, vf);
		if (ret)
			return ret;
		j++;
	}
	return 0;
}

/**
 *	t4_init_portinfo_viid - allocate a virtual interface and initialize
 *	port_info
 *	@pi: the port_info
 *	@mbox: mailbox to use for the FW command
 *	@port: physical port associated with the VI
 *	@pf: the PF owning the VI
 *	@vf: the VF owning the VI
 *	@mac: the MAC address of the VI
 *	@alloc_vi: Indicator to alloc VI
 *
 *	Allocates a virtual interface for the given physical port.  If @mac is
 *	not %NULL it contains the MAC address of the VI as assigned by FW.
 *	@mac should be large enough to hold an Ethernet address.
 *	Returns < 0 on error.
 */
int t4_init_portinfo_viid(struct port_info *pi, int mbox,
		     int port, int pf, int vf, u8 mac[], bool alloc_vi)
{
	struct adapter *adapter = pi->adapter;
	unsigned int fw_caps = adapter->params.fw_caps_support;
	struct fw_port_cmd cmd;
	unsigned int rss_size;
	enum fw_port_type port_type;
	int mdio_addr;
	fw_port_cap32_t pcaps, acaps;
	int ret;

	/*
	 * If we haven't yet determined whether we're talking to Firmware
	 * which knows the new 32-bit Port Capabilities, it's time to find
	 * out now.  This will also tell new Firmware to send us Port Status
	 * Updates using the new 32-bit Port Capabilities version of the
	 * Port Information message.
	 */
	if (fw_caps == FW_CAPS_UNKNOWN) {
		u32 param, val;

		param = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_PFVF) |
			 V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_PFVF_PORT_CAPS32));
		val = 1;
		ret = t4_set_params(adapter, mbox, pf, vf, 1, &param, &val);
		fw_caps = (ret == 0 ? FW_CAPS32 : FW_CAPS16);
		adapter->params.fw_caps_support = fw_caps;
	}

	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_portid = cpu_to_be32(V_FW_CMD_OP(FW_PORT_CMD) |
				       F_FW_CMD_REQUEST | F_FW_CMD_READ |
				       V_FW_PORT_CMD_PORTID(port));
	cmd.action_to_len16 = cpu_to_be32(
		V_FW_PORT_CMD_ACTION(fw_caps == FW_CAPS16
				     ? FW_PORT_ACTION_GET_PORT_INFO
				     : FW_PORT_ACTION_GET_PORT_INFO32) |
		FW_LEN16(cmd));
	ret = t4_wr_mbox(pi->adapter, mbox, &cmd, sizeof(cmd), &cmd);
	if (ret)
		return ret;

	/*
	 * Extract the various fields from the Port Information message.
	 */
	if (fw_caps == FW_CAPS16) {
		u32 lstatus = be32_to_cpu(cmd.u.info.lstatus_to_modtype);

		port_type = G_FW_PORT_CMD_PTYPE(lstatus);
		mdio_addr = ((lstatus & F_FW_PORT_CMD_MDIOCAP)
			     ? G_FW_PORT_CMD_MDIOADDR(lstatus)
			     : -1);
		pcaps = fwcaps16_to_caps32(be16_to_cpu(cmd.u.info.pcap));
		acaps = fwcaps16_to_caps32(be16_to_cpu(cmd.u.info.acap));
	} else {
		u32 lstatus32 = be32_to_cpu(cmd.u.info32.lstatus32_to_cbllen32);

		port_type = G_FW_PORT_CMD_PORTTYPE32(lstatus32);
		mdio_addr = ((lstatus32 & F_FW_PORT_CMD_MDIOCAP32)
			     ? G_FW_PORT_CMD_MDIOADDR32(lstatus32)
			     : -1);
		pcaps = be32_to_cpu(cmd.u.info32.pcaps32);
		acaps = be32_to_cpu(cmd.u.info32.acaps32);
	}

	if (alloc_vi) {
		u8 vivld = 0, vin = 0;

		ret = t4_alloc_vi(pi->adapter, mbox, port, pf, vf, 1, mac,
				  &rss_size, &vivld, &vin);
		if (ret < 0)
			return ret;

		pi->viid = ret;
		pi->rss_size = rss_size;

		/* If fw supports returning the VIN as part of FW_VI_CMD,
		 * save the returned values.
		 */
		if (adapter->params.viid_smt_extn_support) {
			pi->vivld = vivld;
			pi->vin = vin;
		} else {
			/* Retrieve the values from VIID */
			pi->vivld = G_FW_VIID_VIVLD(pi->viid);
			pi->vin = G_FW_VIID_VIN(pi->viid);
		}
	}

	pi->tx_chan = port;
	pi->lport = port;
	pi->rx_chan = port;
	pi->rx_cchan = t4_get_tp_e2c_map(pi->adapter, port);

	pi->port_type = port_type;
	pi->mdio_addr = mdio_addr;
	pi->mod_type = FW_PORT_MOD_TYPE_NA;

	t4_init_link_config(pi, pcaps, acaps);
	return 0;
}

/**
 *	t4_init_portinfo - allocate a virtual interface and initialize port_info
 *	@pi: the port_info
 *	@mbox: mailbox to use for the FW command
 *	@port: physical port associated with the VI
 *	@pf: the PF owning the VI
 *	@vf: the VF owning the VI
 *	@mac: the MAC address of the VI
 *
 *	Allocates a virtual interface for the given physical port.  If @mac is
 *	not %NULL it contains the MAC address of the VI as assigned by FW.
 *	@mac should be large enough to hold an Ethernet address.
 *	Returns < 0 on error.
 */
int t4_init_portinfo(struct port_info *pi, int mbox,
		     int port, int pf, int vf, u8 mac[])
{
	return t4_init_portinfo_viid(pi, mbox, port, pf, vf, mac, true);
}

int t4_port_init(struct adapter *adap, int mbox, int pf, int vf)
{
	u8 addr[6];
	int ret, i, j = 0;

	for_each_port(adap, i) {
		struct port_info *pi = adap2pinfo(adap, i);

		while ((adap->params.portvec & (1 << j)) == 0)
			j++;

		ret = t4_init_portinfo(pi, mbox, j, pf, vf, addr);
		if (ret)
			return ret;

		t4_os_set_hw_addr(adap, i, addr);
		j++;
	}
	return 0;
}

/**
 *	t4_read_cimq_cfg - read CIM queue configuration
 *	@adap: the adapter
 *	@base: holds the queue base addresses in bytes
 *	@size: holds the queue sizes in bytes
 *	@thres: holds the queue full thresholds in bytes
 *
 *	Returns the current configuration of the CIM queues, starting with
 *	the IBQs, then the OBQs.
 */
void t4_read_cimq_cfg(struct adapter *adap, u16 *base, u16 *size, u16 *thres)
{
	unsigned int i, v;
	int cim_num_obq = is_t4(adap->params.chip) ?
				CIM_NUM_OBQ : CIM_NUM_OBQ_T5;

	for (i = 0; i < CIM_NUM_IBQ; i++) {
		t4_write_reg(adap, A_CIM_QUEUE_CONFIG_REF, F_IBQSELECT |
			     V_QUENUMSELECT(i));
		v = t4_read_reg(adap, A_CIM_QUEUE_CONFIG_CTRL);
		/* value is in 256-byte units */
		*base++ = G_CIMQBASE(v) * 256;
		*size++ = G_CIMQSIZE(v) * 256;
		*thres++ = G_QUEFULLTHRSH(v) * 8; /* 8-byte unit */
	}
	for (i = 0; i < cim_num_obq; i++) {
		t4_write_reg(adap, A_CIM_QUEUE_CONFIG_REF, F_OBQSELECT |
			     V_QUENUMSELECT(i));
		v = t4_read_reg(adap, A_CIM_QUEUE_CONFIG_CTRL);
		/* value is in 256-byte units */
		*base++ = G_CIMQBASE(v) * 256;
		*size++ = G_CIMQSIZE(v) * 256;
	}
}

/**
 *	t4_read_cim_ibq - read the contents of a CIM inbound queue
 *	@adap: the adapter
 *	@qid: the queue index
 *	@data: where to store the queue contents
 *	@n: capacity of @data in 32-bit words
 *
 *	Reads the contents of the selected CIM queue starting at address 0 up
 *	to the capacity of @data.  @n must be a multiple of 4.  Returns < 0 on
 *	error and the number of 32-bit words actually read on success.
 */
int t4_read_cim_ibq(struct adapter *adap, unsigned int qid, u32 *data, size_t n)
{
	int i, err, attempts;
	unsigned int addr;
	const unsigned int nwords = CIM_IBQ_SIZE * 4;

	if (qid > 5 || (n & 3))
		return -EINVAL;

	addr = qid * nwords;
	if (n > nwords)
		n = nwords;

	/* It might take 3-10ms before the IBQ debug read access is allowed.
	 * Wait for 1 Sec with a delay of 1 usec.
	 */
	attempts = 1000000;

	for (i = 0; i < n; i++, addr++) {
		t4_write_reg(adap, A_CIM_IBQ_DBG_CFG, V_IBQDBGADDR(addr) |
			     F_IBQDBGEN);
		err = t4_wait_op_done(adap, A_CIM_IBQ_DBG_CFG, F_IBQDBGBUSY, 0,
				      attempts, 1);
		if (err)
			return err;
		*data++ = t4_read_reg(adap, A_CIM_IBQ_DBG_DATA);
	}
	t4_write_reg(adap, A_CIM_IBQ_DBG_CFG, 0);
	return i;
}

/**
 *	t4_read_cim_obq - read the contents of a CIM outbound queue
 *	@adap: the adapter
 *	@qid: the queue index
 *	@data: where to store the queue contents
 *	@n: capacity of @data in 32-bit words
 *
 *	Reads the contents of the selected CIM queue starting at address 0 up
 *	to the capacity of @data.  @n must be a multiple of 4.  Returns < 0 on
 *	error and the number of 32-bit words actually read on success.
 */
int t4_read_cim_obq(struct adapter *adap, unsigned int qid, u32 *data, size_t n)
{
	int i, err;
	unsigned int addr, v, nwords;
	int cim_num_obq = is_t4(adap->params.chip) ?
				CIM_NUM_OBQ : CIM_NUM_OBQ_T5;

	if ((qid > (cim_num_obq - 1)) || (n & 3))
		return -EINVAL;

	t4_write_reg(adap, A_CIM_QUEUE_CONFIG_REF, F_OBQSELECT |
		     V_QUENUMSELECT(qid));
	v = t4_read_reg(adap, A_CIM_QUEUE_CONFIG_CTRL);

	addr = G_CIMQBASE(v) * 64;    /* muliple of 256 -> muliple of 4 */
	nwords = G_CIMQSIZE(v) * 64;  /* same */
	if (n > nwords)
		n = nwords;

	for (i = 0; i < n; i++, addr++) {
		t4_write_reg(adap, A_CIM_OBQ_DBG_CFG, V_OBQDBGADDR(addr) |
			     F_OBQDBGEN);
		err = t4_wait_op_done(adap, A_CIM_OBQ_DBG_CFG, F_OBQDBGBUSY, 0,
				      2, 1);
		if (err)
			return err;
		*data++ = t4_read_reg(adap, A_CIM_OBQ_DBG_DATA);
	}
	t4_write_reg(adap, A_CIM_OBQ_DBG_CFG, 0);
	return i;
}

/**
 *	t4_cim_read - read a block from CIM internal address space
 *	@adap: the adapter
 *	@addr: the start address within the CIM address space
 *	@n: number of words to read
 *	@valp: where to store the result
 *
 *	Reads a block of 4-byte words from the CIM intenal address space.
 */
int t4_cim_read(struct adapter *adap, unsigned int addr, unsigned int n,
		unsigned int *valp)
{
	int ret = 0;

	if (t4_read_reg(adap, A_CIM_HOST_ACC_CTRL) & F_HOSTBUSY)
		return -EBUSY;

	for ( ; !ret && n--; addr += 4) {
		t4_write_reg(adap, A_CIM_HOST_ACC_CTRL, addr);
		ret = t4_wait_op_done(adap, A_CIM_HOST_ACC_CTRL, F_HOSTBUSY,
				      0, 5, 2);
		if (!ret)
			*valp++ = t4_read_reg(adap, A_CIM_HOST_ACC_DATA);
	}
	return ret;
}

/**
 *	t4_cim_write - write a block into CIM internal address space
 *	@adap: the adapter
 *	@addr: the start address within the CIM address space
 *	@n: number of words to write
 *	@valp: set of values to write
 *
 *	Writes a block of 4-byte words into the CIM intenal address space.
 */
int t4_cim_write(struct adapter *adap, unsigned int addr, unsigned int n,
		 const unsigned int *valp)
{
	int ret = 0;

	if (t4_read_reg(adap, A_CIM_HOST_ACC_CTRL) & F_HOSTBUSY)
		return -EBUSY;

	for ( ; !ret && n--; addr += 4) {
		t4_write_reg(adap, A_CIM_HOST_ACC_DATA, *valp++);
		t4_write_reg(adap, A_CIM_HOST_ACC_CTRL, addr | F_HOSTWRITE);
		ret = t4_wait_op_done(adap, A_CIM_HOST_ACC_CTRL, F_HOSTBUSY,
				      0, 5, 2);
	}
	return ret;
}

static int t4_cim_write1(struct adapter *adap, unsigned int addr,
			 unsigned int val)
{
	return t4_cim_write(adap, addr, 1, &val);
}

/**
 *	t4_cim_read_la - read CIM LA capture buffer
 *	@adap: the adapter
 *	@la_buf: where to store the LA data
 *	@wrptr: the HW write pointer within the capture buffer
 *
 *	Reads the contents of the CIM LA buffer with the most recent entry at
 *	the end	of the returned data and with the entry at @wrptr first.
 *	We try to leave the LA in the running state we find it in.
 */
int t4_cim_read_la(struct adapter *adap, u32 *la_buf, unsigned int *wrptr)
{
	int i, ret;
	unsigned int cfg, val, idx;

	ret = t4_cim_read(adap, A_UP_UP_DBG_LA_CFG, 1, &cfg);
	if (ret)
		return ret;

	if (cfg & F_UPDBGLAEN) {	/* LA is running, freeze it */
		ret = t4_cim_write1(adap, A_UP_UP_DBG_LA_CFG, 0);
		if (ret)
			return ret;
	}

	ret = t4_cim_read(adap, A_UP_UP_DBG_LA_CFG, 1, &val);
	if (ret)
		goto restart;

	idx = G_UPDBGLAWRPTR(val);
	if (wrptr)
		*wrptr = idx;

	for (i = 0; i < adap->params.cim_la_size; i++) {
		ret = t4_cim_write1(adap, A_UP_UP_DBG_LA_CFG,
				    V_UPDBGLARDPTR(idx) | F_UPDBGLARDEN);
		if (ret)
			break;
		ret = t4_cim_read(adap, A_UP_UP_DBG_LA_CFG, 1, &val);
		if (ret)
			break;
		if (val & F_UPDBGLARDEN) {
			ret = -ETIMEDOUT;
			break;
		}
		ret = t4_cim_read(adap, A_UP_UP_DBG_LA_DATA, 1, &la_buf[i]);
		if (ret)
			break;

		/* Bits 0-3 of UpDbgLaRdPtr can be between 0000 to 1001 to
		 * identify the 32-bit portion of the full 312-bit data
		 */
		if (is_t6(adap->params.chip) && (idx & 0xf) >= 9)
			idx = (idx & 0xff0) + 0x10;
		else
			idx++;
		/* address can't exceed 0xfff */
		idx &= M_UPDBGLARDPTR;
	}
restart:
	if (cfg & F_UPDBGLAEN) {
		int r = t4_cim_write1(adap, A_UP_UP_DBG_LA_CFG,
				      cfg & ~F_UPDBGLARDEN);
		if (!ret)
			ret = r;
	}
	return ret;
}

/**
 *	t4_tp_read_la - read TP LA capture buffer
 *	@adap: the adapter
 *	@la_buf: where to store the LA data
 *	@wrptr: the HW write pointer within the capture buffer
 *
 *	Reads the contents of the TP LA buffer with the most recent entry at
 *	the end	of the returned data and with the entry at @wrptr first.
 *	We leave the LA in the running state we find it in.
 */
void t4_tp_read_la(struct adapter *adap, u64 *la_buf, unsigned int *wrptr)
{
	bool last_incomplete;
	unsigned int i, cfg, val, idx;

	cfg = t4_read_reg(adap, A_TP_DBG_LA_CONFIG) & 0xffff;
	if (cfg & F_DBGLAENABLE)			/* freeze LA */
		t4_write_reg(adap, A_TP_DBG_LA_CONFIG,
			     adap->params.tp.la_mask | (cfg ^ F_DBGLAENABLE));

	val = t4_read_reg(adap, A_TP_DBG_LA_CONFIG);
	idx = G_DBGLAWPTR(val);
	last_incomplete = G_DBGLAMODE(val) >= 2 && (val & F_DBGLAWHLF) == 0;
	if (last_incomplete)
		idx = (idx + 1) & M_DBGLARPTR;
	if (wrptr)
		*wrptr = idx;

	val &= 0xffff;
	val &= ~V_DBGLARPTR(M_DBGLARPTR);
	val |= adap->params.tp.la_mask;

	for (i = 0; i < TPLA_SIZE; i++) {
		t4_write_reg(adap, A_TP_DBG_LA_CONFIG, V_DBGLARPTR(idx) | val);
		la_buf[i] = t4_read_reg64(adap, A_TP_DBG_LA_DATAL);
		idx = (idx + 1) & M_DBGLARPTR;
	}

	/* Wipe out last entry if it isn't valid */
	if (last_incomplete)
		la_buf[TPLA_SIZE - 1] = ~0ULL;

	if (cfg & F_DBGLAENABLE)		/* restore running state */
		t4_write_reg(adap, A_TP_DBG_LA_CONFIG,
			     cfg | adap->params.tp.la_mask);
}

/* SGE Hung Ingress DMA Warning Threshold time and Warning Repeat Rate (in
 * seconds).  If we find one of the SGE Ingress DMA State Machines in the same
 * state for more than the Warning Threshold then we'll issue a warning about
 * a potential hang.  We'll repeat the warning as the SGE Ingress DMA Channel
 * appears to be hung every Warning Repeat second till the situation clears.
 * If the situation clears, we'll note that as well.
 */
#define SGE_IDMA_WARN_THRESH 1
#define SGE_IDMA_WARN_REPEAT 300

/**
 *	t4_idma_monitor_init - initialize SGE Ingress DMA Monitor
 *	@adapter: the adapter
 *	@idma: the adapter IDMA Monitor state
 *
 *	Initialize the state of an SGE Ingress DMA Monitor.
 */
void t4_idma_monitor_init(struct adapter *adapter,
			  struct sge_idma_monitor_state *idma)
{
	/* Initialize the state variables for detecting an SGE Ingress DMA
	 * hang.  The SGE has internal counters which count up on each clock
	 * tick whenever the SGE finds its Ingress DMA State Engines in the
	 * same state they were on the previous clock tick.  The clock used is
	 * the Core Clock so we have a limit on the maximum "time" they can
	 * record; typically a very small number of seconds.  For instance,
	 * with a 600MHz Core Clock, we can only count up to a bit more than
	 * 7s.  So we'll synthesize a larger counter in order to not run the
	 * risk of having the "timers" overflow and give us the flexibility to
	 * maintain a Hung SGE State Machine of our own which operates across
	 * a longer time frame.
	 */
	idma->idma_1s_thresh = core_ticks_per_usec(adapter) * 1000000; /* 1s */
	idma->idma_stalled[0] = idma->idma_stalled[1] = 0;
}

/**
 *	t4_idma_monitor - monitor SGE Ingress DMA state
 *	@adapter: the adapter
 *	@idma: the adapter IDMA Monitor state
 *	@hz: number of ticks/second
 *	@ticks: number of ticks since the last IDMA Monitor call
 */
void t4_idma_monitor(struct adapter *adapter,
		     struct sge_idma_monitor_state *idma,
		     int hz, int ticks)
{
	int i, idma_same_state_cnt[2];

	 /* Read the SGE Debug Ingress DMA Same State Count registers.  These
	  * are counters inside the SGE which count up on each clock when the
	  * SGE finds its Ingress DMA State Engines in the same states they
	  * were in the previous clock.  The counters will peg out at
	  * 0xffffffff without wrapping around so once they pass the 1s
	  * threshold they'll stay above that till the IDMA state changes.
	  */
	t4_write_reg(adapter, A_SGE_DEBUG_INDEX, 13);
	idma_same_state_cnt[0] = t4_read_reg(adapter, A_SGE_DEBUG_DATA_HIGH);
	idma_same_state_cnt[1] = t4_read_reg(adapter, A_SGE_DEBUG_DATA_LOW);

	for (i = 0; i < 2; i++) {
		u32 debug0, debug11;

		/* If the Ingress DMA Same State Counter ("timer") is less
		 * than 1s, then we can reset our synthesized Stall Timer and
		 * continue.  If we have previously emitted warnings about a
		 * potential stalled Ingress Queue, issue a note indicating
		 * that the Ingress Queue has resumed forward progress.
		 */
		if (idma_same_state_cnt[i] < idma->idma_1s_thresh) {
			if (idma->idma_stalled[i] >= SGE_IDMA_WARN_THRESH*hz)
				CH_WARN(adapter, "SGE idma%d, queue %u, "
					"resumed after %d seconds\n",
					i, idma->idma_qid[i],
					idma->idma_stalled[i]/hz);
			idma->idma_stalled[i] = 0;
			continue;
		}

		/* Synthesize an SGE Ingress DMA Same State Timer in the Hz
		 * domain.  The first time we get here it'll be because we
		 * passed the 1s Threshold; each additional time it'll be
		 * because the RX Timer Callback is being fired on its regular
		 * schedule.
		 *
		 * If the stall is below our Potential Hung Ingress Queue
		 * Warning Threshold, continue.
		 */
		if (idma->idma_stalled[i] == 0) {
			idma->idma_stalled[i] = hz;
			idma->idma_warn[i] = 0;
		} else {
			idma->idma_stalled[i] += ticks;
			idma->idma_warn[i] -= ticks;
		}

		if (idma->idma_stalled[i] < SGE_IDMA_WARN_THRESH*hz)
			continue;

		/* We'll issue a warning every SGE_IDMA_WARN_REPEAT seconds.
		 */
		if (idma->idma_warn[i] > 0)
			continue;
		idma->idma_warn[i] = SGE_IDMA_WARN_REPEAT*hz;

		/* Read and save the SGE IDMA State and Queue ID information.
		 * We do this every time in case it changes across time ...
		 * can't be too careful ...
		 */
		t4_write_reg(adapter, A_SGE_DEBUG_INDEX, 0);
		debug0 = t4_read_reg(adapter, A_SGE_DEBUG_DATA_LOW);
		idma->idma_state[i] = (debug0 >> (i * 9)) & 0x3f;

		t4_write_reg(adapter, A_SGE_DEBUG_INDEX, 11);
		debug11 = t4_read_reg(adapter, A_SGE_DEBUG_DATA_LOW);
		idma->idma_qid[i] = (debug11 >> (i * 16)) & 0xffff;

		CH_WARN(adapter, "SGE idma%u, queue %u, potentially stuck in "
			" state %u for %d seconds (debug0=%#x, debug11=%#x)\n",
			i, idma->idma_qid[i], idma->idma_state[i],
			idma->idma_stalled[i]/hz,
			debug0, debug11);
		t4_sge_decode_idma_state(adapter, idma->idma_state[i]);
	}
}

/**
 *     t4_set_vf_mac - Set MAC address for the specified VF
 *     @adapter: The adapter
 *     @vf: one of the VFs instantiated by the specified PF
 *     @naddr: the number of MAC addresses
 *     @addr: the MAC address(es) to be set to the specified VF
 */
int t4_set_vf_mac_acl(struct adapter *adapter, unsigned int vf,
		      unsigned int naddr, u8 *addr)
{
	struct fw_acl_mac_cmd cmd;

	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_ACL_MAC_CMD) |
				    F_FW_CMD_REQUEST |
				    F_FW_CMD_WRITE |
				    V_FW_ACL_MAC_CMD_PFN(adapter->pf) |
				    V_FW_ACL_MAC_CMD_VFN(vf));

	/* Note: Do not enable the ACL */
	cmd.en_to_len16 = cpu_to_be32((unsigned int)FW_LEN16(cmd));
	cmd.nmac = naddr;

	switch (adapter->pf) {
	case 3:
		memcpy(cmd.macaddr3, addr, sizeof(cmd.macaddr3));
		break;
	case 2:
		memcpy(cmd.macaddr2, addr, sizeof(cmd.macaddr2));
		break;
	case 1:
		memcpy(cmd.macaddr1, addr, sizeof(cmd.macaddr1));
		break;
	case 0:
		memcpy(cmd.macaddr0, addr, sizeof(cmd.macaddr0));
		break;
	}

	return t4_wr_mbox(adapter, adapter->mbox, &cmd, sizeof(cmd), &cmd);
}

/* Code which cannot be pushed to kernel.org e.g., cxgbtool ioctl helper
 * functions
 */

/**
 *	t4_read_pace_tbl - read the pace table
 *	@adap: the adapter
 *	@pace_vals: holds the returned values
 *
 *	Returns the values of TP's pace table in microseconds.
 */
void t4_read_pace_tbl(struct adapter *adap, unsigned int pace_vals[NTX_SCHED])
{
	unsigned int i, v;

	for (i = 0; i < NTX_SCHED; i++) {
		t4_write_reg(adap, A_TP_PACE_TABLE, 0xffff0000 + i);
		v = t4_read_reg(adap, A_TP_PACE_TABLE);
		pace_vals[i] = dack_ticks_to_usec(adap, v);
	}
}

/**
 *	t4_get_tx_sched - get the configuration of a Tx HW traffic scheduler
 *	@adap: the adapter
 *	@sched: the scheduler index
 *	@kbps: the byte rate in Kbps
 *	@ipg: the interpacket delay in tenths of nanoseconds
 * 	@sleep_ok: if true we may sleep while awaiting command completion
 *
 *	Return the current configuration of a HW Tx scheduler.
 */
void t4_get_tx_sched(struct adapter *adap, unsigned int sched, unsigned int *kbps,
		     unsigned int *ipg, bool sleep_ok)
{
	unsigned int v, addr, bpt, cpt;

	if (kbps) {
		addr = A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2;
		t4_tp_tm_pio_read(adap, &v, 1, addr, sleep_ok);
		if (sched & 1)
			v >>= 16;
		bpt = (v >> 8) & 0xff;
		cpt = v & 0xff;
		if (!cpt)
			*kbps = 0;	/* scheduler disabled */
		else {
			v = (adap->params.vpd.cclk * 1000) / cpt; /* ticks/s */
			*kbps = (v * bpt) / 125;
		}
	}
	if (ipg) {
		addr = A_TP_TX_MOD_Q1_Q0_TIMER_SEPARATOR - sched / 2;
		t4_tp_tm_pio_read(adap, &v, 1, addr, sleep_ok);
		if (sched & 1)
			v >>= 16;
		v &= 0xffff;
		*ipg = (10000 * v) / core_ticks_per_usec(adap);
	}
}

/**
 *	t4_load_cfg - download config file
 *	@adap: the adapter
 *	@cfg_data: the cfg text file to write
 *	@size: text file size
 *
 *	Write the supplied config text file to the card's serial flash.
 */
int t4_load_cfg(struct adapter *adap, const u8 *cfg_data, unsigned int size)
{
	int ret, i, n, cfg_addr;
	unsigned int addr;
	unsigned int flash_cfg_start_sec;
	unsigned int sf_sec_size = adap->params.sf_size / adap->params.sf_nsec;

	cfg_addr = t4_flash_cfg_addr(adap);
	if (cfg_addr < 0)
		return cfg_addr;

	addr = cfg_addr;
	flash_cfg_start_sec = addr / SF_SEC_SIZE;

	if (size > FLASH_CFG_MAX_SIZE) {
		CH_ERR(adap, "cfg file too large, max is %u bytes\n",
		       FLASH_CFG_MAX_SIZE);
		return -EFBIG;
	}

	i = DIV_ROUND_UP(FLASH_CFG_MAX_SIZE,	/* # of sectors spanned */
			 sf_sec_size);
	ret = t4_flash_erase_sectors(adap, flash_cfg_start_sec,
				     flash_cfg_start_sec + i - 1);
	/*
	 * If size == 0 then we're simply erasing the FLASH sectors associated
	 * with the on-adapter Firmware Configuration File.
	 */
	if (ret || size == 0)
		goto out;

	/* this will write to the flash up to SF_PAGE_SIZE at a time */
	for (i = 0; i< size; i+= SF_PAGE_SIZE) {
		if ( (size - i) <  SF_PAGE_SIZE)
			n = size - i;
		else
			n = SF_PAGE_SIZE;
		ret = t4_write_flash(adap, addr, n, cfg_data, 1);
		if (ret)
			goto out;

		addr += SF_PAGE_SIZE;
		cfg_data += SF_PAGE_SIZE;
	}

out:
	if (ret)
		CH_ERR(adap, "config file %s failed %d\n",
		       (size == 0 ? "clear" : "download"), ret);
	return ret;
}

/**
 *	t5_fw_init_extern_mem - initialize the external memory
 *	@adap: the adapter
 *
 *	Initializes the external memory on T5.
 */
int t5_fw_init_extern_mem(struct adapter *adap)
{
	u32 params[1], val[1];
	int ret;

	if (!is_t5(adap->params.chip))
		return 0;

	val[0] = 0xff; /* Initialize all MCs */
	params[0] = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
			V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_MCINIT));
	ret = t4_set_params_timeout(adap, adap->mbox, adap->pf, 0, 1, params, val,
			FW_CMD_MAX_TIMEOUT);

	return ret;
}

/* BIOS boot headers */
typedef struct pci_expansion_rom_header {
	u8	signature[2]; /* ROM Signature. Should be 0xaa55 */
	u8	reserved[22]; /* Reserved per processor Architecture data */
	u8	pcir_offset[2]; /* Offset to PCI Data Structure */
} pci_exp_rom_header_t; /* PCI_EXPANSION_ROM_HEADER */

/* Legacy PCI Expansion ROM Header */
typedef struct legacy_pci_expansion_rom_header {
	u8	signature[2]; /* ROM Signature. Should be 0xaa55 */
	u8	size512; /* Current Image Size in units of 512 bytes */
	u8	initentry_point[4];
	u8	cksum; /* Checksum computed on the entire Image */
	u8	reserved[16]; /* Reserved */
	u8	pcir_offset[2]; /* Offset to PCI Data Struture */
} legacy_pci_exp_rom_header_t; /* LEGACY_PCI_EXPANSION_ROM_HEADER */

/* EFI PCI Expansion ROM Header */
typedef struct efi_pci_expansion_rom_header {
	u8	signature[2]; // ROM signature. The value 0xaa55
	u8	initialization_size[2]; /* Units 512. Includes this header */
	u8	efi_signature[4]; /* Signature from EFI image header. 0x0EF1 */
	u8	efi_subsystem[2]; /* Subsystem value for EFI image header */
	u8	efi_machine_type[2]; /* Machine type from EFI image header */
	u8	compression_type[2]; /* Compression type. */
		/*
		 * Compression type definition
		 * 0x0: uncompressed
		 * 0x1: Compressed
		 * 0x2-0xFFFF: Reserved
		 */
	u8	reserved[8]; /* Reserved */
	u8	efi_image_header_offset[2]; /* Offset to EFI Image */
	u8	pcir_offset[2]; /* Offset to PCI Data Structure */
} efi_pci_exp_rom_header_t; /* EFI PCI Expansion ROM Header */

/* PCI Data Structure Format */
typedef struct pcir_data_structure { /* PCI Data Structure */
	u8	signature[4]; /* Signature. The string "PCIR" */
	u8	vendor_id[2]; /* Vendor Identification */
	u8	device_id[2]; /* Device Identification */
	u8	vital_product[2]; /* Pointer to Vital Product Data */
	u8	length[2]; /* PCIR Data Structure Length */
	u8	revision; /* PCIR Data Structure Revision */
	u8	class_code[3]; /* Class Code */
	u8	image_length[2]; /* Image Length. Multiple of 512B */
	u8	code_revision[2]; /* Revision Level of Code/Data */
	u8	code_type; /* Code Type. */
		/*
		 * PCI Expansion ROM Code Types
		 * 0x00: Intel IA-32, PC-AT compatible. Legacy
		 * 0x01: Open Firmware standard for PCI. FCODE
		 * 0x02: Hewlett-Packard PA RISC. HP reserved
		 * 0x03: EFI Image. EFI
		 * 0x04-0xFF: Reserved.
		 */
	u8	indicator; /* Indicator. Identifies the last image in the ROM */
	u8	reserved[2]; /* Reserved */
} pcir_data_t; /* PCI__DATA_STRUCTURE */

/* BOOT constants */
enum {
	BOOT_FLASH_BOOT_ADDR = 0x0,/* start address of boot image in flash */
	BOOT_SIGNATURE = 0xaa55,   /* signature of BIOS boot ROM */
	BOOT_SIZE_INC = 512,       /* image size measured in 512B chunks */
	BOOT_MIN_SIZE = sizeof(pci_exp_rom_header_t), /* basic header */
	BOOT_MAX_SIZE = 1024*BOOT_SIZE_INC, /* 1 byte * length increment  */
	VENDOR_ID = 0x1425, /* Vendor ID */
	PCIR_SIGNATURE = 0x52494350 /* PCIR signature */
};

/*
 *	modify_device_id - Modifies the device ID of the Boot BIOS image
 *	@adatper: the device ID to write.
 *	@boot_data: the boot image to modify.
 *
 *	Write the supplied device ID to the boot BIOS image.
 */
static void modify_device_id(int device_id, u8 *boot_data)
{
	legacy_pci_exp_rom_header_t *header;
	pcir_data_t *pcir_header;
	u32 cur_header = 0;

	/*
	 * Loop through all chained images and change the device ID's
	 */
	while (1) {
		header = (legacy_pci_exp_rom_header_t *) &boot_data[cur_header];
		pcir_header = (pcir_data_t *) &boot_data[cur_header +
			      le16_to_cpu(*(u16*)header->pcir_offset)];

		/*
		 * Only modify the Device ID if code type is Legacy or HP.
		 * 0x00: Okay to modify
		 * 0x01: FCODE. Do not be modify
		 * 0x03: Okay to modify
		 * 0x04-0xFF: Do not modify
		 */
		if (pcir_header->code_type == 0x00) {
			u8 csum = 0;
			int i;

			/*
			 * Modify Device ID to match current adatper
			 */
			*(u16*) pcir_header->device_id = device_id;

			/*
			 * Set checksum temporarily to 0.
			 * We will recalculate it later.
			 */
			header->cksum = 0x0;

			/*
			 * Calculate and update checksum
			 */
			for (i = 0; i < (header->size512 * 512); i++)
				csum += (u8)boot_data[cur_header + i];

			/*
			 * Invert summed value to create the checksum
			 * Writing new checksum value directly to the boot data
			 */
			boot_data[cur_header + 7] = -csum;

		} else if (pcir_header->code_type == 0x03) {

			/*
			 * Modify Device ID to match current adatper
			 */
			*(u16*) pcir_header->device_id = device_id;

		}


		/*
		 * Check indicator element to identify if this is the last
		 * image in the ROM.
		 */
		if (pcir_header->indicator & 0x80)
			break;

		/*
		 * Move header pointer up to the next image in the ROM.
		 */
		cur_header += header->size512 * 512;
	}
}

#ifdef CHELSIO_T4_DIAGS
/*
 *	t4_earse_sf - Erase entire serial Flash region
 *	@adapter: the adapter
 *
 *	Clears the entire serial flash region.
 */
int t4_erase_sf(struct adapter *adap)
{
	unsigned int nsectors;
	int ret;

	nsectors = FLASH_END_SEC;
	if (nsectors > adap->params.sf_nsec)
		nsectors = adap->params.sf_nsec;

	// Erase all sectors of flash before and including the FW.
	// Flash layout is in t4_hw.h.
	ret = t4_flash_erase_sectors(adap, 0, nsectors - 1);
	if (ret)
		CH_ERR(adap, "Erasing serial flash failed, error %d\n", ret);
	return ret;
}
#endif

/*
 *	t4_load_boot - download boot flash
 *	@adapter: the adapter
 *	@boot_data: the boot image to write
 *	@boot_addr: offset in flash to write boot_data
 *	@size: image size
 *
 *	Write the supplied boot image to the card's serial flash.
 *	The boot image has the following sections: a 28-byte header and the
 *	boot image.
 */
int t4_load_boot(struct adapter *adap, u8 *boot_data,
		 unsigned int boot_addr, unsigned int size)
{
	pci_exp_rom_header_t *header;
	int pcir_offset ;
	pcir_data_t *pcir_header;
	int ret, addr;
	uint16_t device_id;
	unsigned int i;
	unsigned int boot_sector = (boot_addr * 1024 );
	unsigned int sf_sec_size = adap->params.sf_size / adap->params.sf_nsec;

	/*
	 * Make sure the boot image does not encroach on the firmware region
	 */
	if ((boot_sector + size) >> 16 > FLASH_FW_START_SEC) {
		CH_ERR(adap, "boot image encroaching on firmware region\n");
		return -EFBIG;
	}

	/*
	 * The boot sector is comprised of the Expansion-ROM boot, iSCSI boot,
	 * and Boot configuration data sections. These 3 boot sections span
	 * sectors 0 to 7 in flash and live right before the FW image location.
	 */
	i = DIV_ROUND_UP(size ? size : FLASH_FW_START,
			sf_sec_size);
	ret = t4_flash_erase_sectors(adap, boot_sector >> 16,
				     (boot_sector >> 16) + i - 1);

	/*
	 * If size == 0 then we're simply erasing the FLASH sectors associated
	 * with the on-adapter option ROM file
	 */
	if (ret || (size == 0))
		goto out;

	/* Get boot header */
	header = (pci_exp_rom_header_t *)boot_data;
	pcir_offset = le16_to_cpu(*(u16 *)header->pcir_offset);
	/* PCIR Data Structure */
	pcir_header = (pcir_data_t *) &boot_data[pcir_offset];

	/*
	 * Perform some primitive sanity testing to avoid accidentally
	 * writing garbage over the boot sectors.  We ought to check for
	 * more but it's not worth it for now ...
	 */
	if (size < BOOT_MIN_SIZE || size > BOOT_MAX_SIZE) {
		CH_ERR(adap, "boot image too small/large\n");
		return -EFBIG;
	}

#ifndef CHELSIO_T4_DIAGS
	/*
	 * Check BOOT ROM header signature
	 */
	if (le16_to_cpu(*(u16*)header->signature) != BOOT_SIGNATURE ) {
		CH_ERR(adap, "Boot image missing signature\n");
		return -EINVAL;
	}

	/*
	 * Check PCI header signature
	 */
	if (le32_to_cpu(*(u32*)pcir_header->signature) != PCIR_SIGNATURE) {
		CH_ERR(adap, "PCI header missing signature\n");
		return -EINVAL;
	}

	/*
	 * Check Vendor ID matches Chelsio ID
	 */
	if (le16_to_cpu(*(u16*)pcir_header->vendor_id) != VENDOR_ID) {
		CH_ERR(adap, "Vendor ID missing signature\n");
		return -EINVAL;
	}
#endif

	/*
	 * Retrieve adapter's device ID
	 */
	t4_os_pci_read_cfg2(adap, PCI_DEVICE_ID, &device_id);
	/* Want to deal with PF 0 so I strip off PF 4 indicator */
	device_id = device_id & 0xf0ff;

	/*
	 * Check PCIE Device ID
	 */
	if (le16_to_cpu(*(u16*)pcir_header->device_id) != device_id) {
		/*
		 * Change the device ID in the Boot BIOS image to match
		 * the Device ID of the current adapter.
		 */
		modify_device_id(device_id, boot_data);
	}

	/*
	 * Skip over the first SF_PAGE_SIZE worth of data and write it after
	 * we finish copying the rest of the boot image. This will ensure
	 * that the BIOS boot header will only be written if the boot image
	 * was written in full.
	 */
	addr = boot_sector;
	for (size -= SF_PAGE_SIZE; size; size -= SF_PAGE_SIZE) {
		addr += SF_PAGE_SIZE;
		boot_data += SF_PAGE_SIZE;
		ret = t4_write_flash(adap, addr, SF_PAGE_SIZE, boot_data, 0);
		if (ret)
			goto out;
	}

	ret = t4_write_flash(adap, boot_sector, SF_PAGE_SIZE,
			     (const u8 *)header, 0);

out:
	if (ret)
		CH_ERR(adap, "boot image download failed, error %d\n", ret);
	return ret;
}

/*
 *	t4_flash_bootcfg_addr - return the address of the flash optionrom configuration
 *	@adapter: the adapter
 *
 *	Return the address within the flash where the OptionROM Configuration
 *	is stored, or an error if the device FLASH is too small to contain
 *	a OptionROM Configuration.
 */
static int t4_flash_bootcfg_addr(struct adapter *adapter)
{
	/*
	 * If the device FLASH isn't large enough to hold a Firmware
	 * Configuration File, return an error.
	 */
	if (adapter->params.sf_size < FLASH_BOOTCFG_START + FLASH_BOOTCFG_MAX_SIZE)
		return -ENOSPC;

	return FLASH_BOOTCFG_START;
}

int t4_load_bootcfg(struct adapter *adap,const u8 *cfg_data, unsigned int size)
{
	int ret, i, n, cfg_addr;
	unsigned int addr;
	unsigned int flash_cfg_start_sec;
	unsigned int sf_sec_size = adap->params.sf_size / adap->params.sf_nsec;

	cfg_addr = t4_flash_bootcfg_addr(adap);
	if (cfg_addr < 0)
		return cfg_addr;

	addr = cfg_addr;
	flash_cfg_start_sec = addr / SF_SEC_SIZE;

	if (size > FLASH_BOOTCFG_MAX_SIZE) {
		CH_ERR(adap, "bootcfg file too large, max is %u bytes\n",
			FLASH_BOOTCFG_MAX_SIZE);
		return -EFBIG;
	}

	i = DIV_ROUND_UP(FLASH_BOOTCFG_MAX_SIZE,/* # of sectors spanned */
			 sf_sec_size);
	ret = t4_flash_erase_sectors(adap, flash_cfg_start_sec,
					flash_cfg_start_sec + i - 1);

	/*
	 * If size == 0 then we're simply erasing the FLASH sectors associated
	 * with the on-adapter OptionROM Configuration File.
	 */
	if (ret || size == 0)
		goto out;

	/* this will write to the flash up to SF_PAGE_SIZE at a time */
	for (i = 0; i< size; i+= SF_PAGE_SIZE) {
		if ( (size - i) <  SF_PAGE_SIZE)
			n = size - i;
		else
			n = SF_PAGE_SIZE;
		ret = t4_write_flash(adap, addr, n, cfg_data, 0);
		if (ret)
			goto out;

		addr += SF_PAGE_SIZE;
		cfg_data += SF_PAGE_SIZE;
	}

out:
	if (ret)
		CH_ERR(adap, "boot config data %s failed %d\n",
				(size == 0 ? "clear" : "download"), ret);
	return ret;
}

/**
 * t4_read_bootcfg - read the current (boot)OptionROM configuration from FLASH
 * @adap: the adapter
 * @cfg_data: where to store the read OptionROM configuration data
 *
 * Read the current OptionROM configuration from FLASH and write to the
 * buffer @cfg_data supplied.
 */
int t4_read_bootcfg(struct adapter *adap, u8 *cfg_data, unsigned int size)
{
	u32 *ptr = (u32 *)cfg_data;
	int i, n, cfg_addr;
	int ret = 0;

	if (size > FLASH_BOOTCFG_MAX_SIZE) {
		CH_ERR(adap, "bootcfg file too big, max is %u bytes\n",
			FLASH_BOOTCFG_MAX_SIZE);
		return -EINVAL;
	}

	cfg_addr = t4_flash_bootcfg_addr(adap);
	if (cfg_addr < 0)
		return cfg_addr;

	size = size / sizeof (u32);
	for (i = 0; i < size; i += SF_PAGE_SIZE) {
		if ( (size - i) <  SF_PAGE_SIZE)
			n = size - i;
		else
			n = SF_PAGE_SIZE;

		ret = t4_read_flash(adap, cfg_addr, n, ptr, 0);
		if (ret)
			goto out;

		cfg_addr += (n*4);
		ptr += n;
	}

out:
	return ret;
}

/**
 *	t4_set_filter_mode - configure the optional components of filter tuples
 *	@adap: the adapter
 *	@mode_map: a bitmap selcting which optional filter components to enable
 * 	@sleep_ok: if true we may sleep while awaiting command completion
 *
 *	Sets the filter mode by selecting the optional components to enable
 *	in filter tuples.  Returns 0 on success and a negative error if the
 *	requested mode needs more bits than are available for optional
 *	components.
 */
int t4_set_filter_mode(struct adapter *adap, unsigned int mode_map,
		       bool sleep_ok)
{
	static u8 width[] = { 1, 3, 17, 17, 8, 8, 16, 9, 3, 1 };

	int i, nbits = 0;

	for (i = S_FCOE; i <= S_FRAGMENTATION; i++)
		if (mode_map & (1 << i))
			nbits += width[i];
	if (nbits > FILTER_OPT_LEN)
		return -EINVAL;

	t4_tp_pio_write(adap, &mode_map, 1, A_TP_VLAN_PRI_MAP, sleep_ok);

	return 0;
}

/**
 *	t4_clr_port_stats - clear port statistics
 *	@adap: the adapter
 *	@idx: the port index
 *
 *	Clear HW statistics for the given port.
 */
void t4_clr_port_stats(struct adapter *adap, int idx)
{
	unsigned int i;
	u32 bgmap = t4_get_mps_bg_map(adap, idx);
	u32 port_base_addr;

	if (is_t4(adap->params.chip))
		port_base_addr = PORT_BASE(idx);
	else
		port_base_addr = T5_PORT_BASE(idx);

	for (i = A_MPS_PORT_STAT_TX_PORT_BYTES_L;
			i <= A_MPS_PORT_STAT_TX_PORT_PPP7_H; i += 8)
		t4_write_reg(adap, port_base_addr + i, 0);
	for (i = A_MPS_PORT_STAT_RX_PORT_BYTES_L;
			i <= A_MPS_PORT_STAT_RX_PORT_LESS_64B_H; i += 8)
		t4_write_reg(adap, port_base_addr + i, 0);
	for (i = 0; i < 4; i++)
		if (bgmap & (1 << i)) {
			t4_write_reg(adap,
			A_MPS_STAT_RX_BG_0_MAC_DROP_FRAME_L + i * 8, 0);
			t4_write_reg(adap,
			A_MPS_STAT_RX_BG_0_MAC_TRUNC_FRAME_L + i * 8, 0);
		}
}

/**
 *	t4_i2c_io - read/write I2C data from adapter
 *	@adap: the adapter
 *	@port: Port number if per-port device; <0 if not
 *	@devid: per-port device ID or absolute device ID
 *	@offset: byte offset into device I2C space
 *	@len: byte length of I2C space data
 *	@buf: buffer in which to return I2C data for read
 *	      buffer which holds the I2C data for write
 *	@write: if true, do a write; else do a read
 *	Reads/Writes the I2C data from/to the indicated device and location.
 */
int t4_i2c_io(struct adapter *adap, unsigned int mbox,
	      int port, unsigned int devid,
	      unsigned int offset, unsigned int len,
	      u8 *buf, bool write)
{
	struct fw_ldst_cmd ldst_cmd, ldst_rpl;
	unsigned int i2c_max = sizeof(ldst_cmd.u.i2c.data);
	int ret = 0;

	if (len > I2C_PAGE_SIZE)
		return -EINVAL;

	/* Dont allow reads that spans multiple pages */
	if (offset < I2C_PAGE_SIZE && offset + len > I2C_PAGE_SIZE)
		return -EINVAL;

	memset(&ldst_cmd, 0, sizeof(ldst_cmd));
	ldst_cmd.op_to_addrspace =
		cpu_to_be32(V_FW_CMD_OP(FW_LDST_CMD) |
			    F_FW_CMD_REQUEST |
			    (write ? F_FW_CMD_WRITE : F_FW_CMD_READ) |
			    V_FW_LDST_CMD_ADDRSPACE(FW_LDST_ADDRSPC_I2C));
	ldst_cmd.cycles_to_len16 = cpu_to_be32(FW_LEN16(ldst_cmd));
	ldst_cmd.u.i2c.pid = (port < 0 ? 0xff : port);
	ldst_cmd.u.i2c.did = devid;

	while (len > 0) {
		unsigned int i2c_len = (len < i2c_max) ? len : i2c_max;

		ldst_cmd.u.i2c.boffset = offset;
		ldst_cmd.u.i2c.blen = i2c_len;

		if (write)
			memcpy(ldst_cmd.u.i2c.data, buf, i2c_len);

		ret = t4_wr_mbox(adap, mbox, &ldst_cmd, sizeof(ldst_cmd),
				 write ? NULL : &ldst_rpl);
		if (ret)
			break;

		if (!write)
			memcpy(buf, ldst_rpl.u.i2c.data, i2c_len);
		offset += i2c_len;
		buf += i2c_len;
		len -= i2c_len;
	}

	return ret;
}

int t4_i2c_rd(struct adapter *adap, unsigned int mbox,
	      int port, unsigned int devid,
	      unsigned int offset, unsigned int len,
	      u8 *buf)
{
	return t4_i2c_io(adap, mbox, port, devid, offset, len, buf, false);
}

int t4_i2c_wr(struct adapter *adap, unsigned int mbox,
	      int port, unsigned int devid,
	      unsigned int offset, unsigned int len,
	      u8 *buf)
{
	return t4_i2c_io(adap, mbox, port, devid, offset, len, buf, true);
}

/**
 * 	t4_sge_ctxt_rd - read an SGE context through FW
 * 	@adap: the adapter
 * 	@mbox: mailbox to use for the FW command
 * 	@cid: the context id
 * 	@ctype: the context type
 * 	@data: where to store the context data
 *
 * 	Issues a FW command through the given mailbox to read an SGE context.
 */
int t4_sge_ctxt_rd(struct adapter *adap, unsigned int mbox, unsigned int cid,
		   enum ctxt_type ctype, u32 *data)
{
	int ret;
	struct fw_ldst_cmd c;

	if (ctype == CTXT_EGRESS)
		ret = FW_LDST_ADDRSPC_SGE_EGRC;
	else if (ctype == CTXT_INGRESS)
		ret = FW_LDST_ADDRSPC_SGE_INGC;
	else if (ctype == CTXT_FLM)
		ret = FW_LDST_ADDRSPC_SGE_FLMC;
	else
		ret = FW_LDST_ADDRSPC_SGE_CONMC;

	memset(&c, 0, sizeof(c));
	c.op_to_addrspace = cpu_to_be32(V_FW_CMD_OP(FW_LDST_CMD) |
					F_FW_CMD_REQUEST | F_FW_CMD_READ |
					V_FW_LDST_CMD_ADDRSPACE(ret));
	c.cycles_to_len16 = cpu_to_be32(FW_LEN16(c));
	c.u.idctxt.physid = cpu_to_be32(cid);

	ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
	if (ret == 0) {
		data[0] = be32_to_cpu(c.u.idctxt.ctxt_data0);
		data[1] = be32_to_cpu(c.u.idctxt.ctxt_data1);
		data[2] = be32_to_cpu(c.u.idctxt.ctxt_data2);
		data[3] = be32_to_cpu(c.u.idctxt.ctxt_data3);
		data[4] = be32_to_cpu(c.u.idctxt.ctxt_data4);
		data[5] = be32_to_cpu(c.u.idctxt.ctxt_data5);
	}
	return ret;
}

/**
 * 	t4_sge_ctxt_rd_bd - read an SGE context bypassing FW
 * 	@adap: the adapter
 * 	@cid: the context id
 * 	@ctype: the context type
 * 	@data: where to store the context data
 *
 * 	Reads an SGE context directly, bypassing FW.  This is only for
 * 	debugging when FW is unavailable.
 */
int t4_sge_ctxt_rd_bd(struct adapter *adap, unsigned int cid, enum ctxt_type ctype,
		      u32 *data)
{
	int i, ret;

	t4_write_reg(adap, A_SGE_CTXT_CMD, V_CTXTQID(cid) | V_CTXTTYPE(ctype));
	ret = t4_wait_op_done(adap, A_SGE_CTXT_CMD, F_BUSY, 0, 3, 1);
	if (!ret)
		for (i = A_SGE_CTXT_DATA0; i <= A_SGE_CTXT_DATA5; i += 4)
			*data++ = t4_read_reg(adap, i);
	return ret;
}

int t4_sched_config(struct adapter *adapter, int type, int minmaxen)
{
	struct fw_sched_cmd cmd;

	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_SCHED_CMD) |
				      F_FW_CMD_REQUEST |
				      F_FW_CMD_WRITE);
	cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));

	cmd.u.config.sc = FW_SCHED_SC_CONFIG;
	cmd.u.config.type = type;
	cmd.u.config.minmaxen = minmaxen;

	return t4_wr_mbox_meat(adapter,adapter->mbox, &cmd, sizeof(cmd),
			       NULL, 1);
}

int t4_sched_params(struct adapter *adapter,
		    int channel, int cls,
		    int level, int mode, int type,
		    int rateunit, int ratemode,
		    int minrate, int maxrate, int weight,
		    int pktsize, int burstsize)
{
	struct fw_sched_cmd cmd;

	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_SCHED_CMD) |
				      F_FW_CMD_REQUEST |
				      F_FW_CMD_WRITE);
	cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));

	cmd.u.params.sc = FW_SCHED_SC_PARAMS;
	cmd.u.params.type = type;
	cmd.u.params.level = level;
	cmd.u.params.mode = mode;
	cmd.u.params.ch = channel;
	cmd.u.params.cl = cls;
	cmd.u.params.unit = rateunit;
	cmd.u.params.rate = ratemode;
	cmd.u.params.min = cpu_to_be32(minrate);
	cmd.u.params.max = cpu_to_be32(maxrate);
	cmd.u.params.weight = cpu_to_be16(weight);
	cmd.u.params.pktsize = cpu_to_be16(pktsize);
	cmd.u.params.burstsize = cpu_to_be16(burstsize);

	return t4_wr_mbox_meat(adapter,adapter->mbox, &cmd, sizeof(cmd),
			       NULL, 1);
}

int t4_read_sched_params(struct adapter *adapter,
		    int channel, int cls,
		    int *level, int *mode, int *type,
		    int *rateunit, int *ratemode,
		    int *minrate, int *maxrate, int *weight,
		    int *pktsize, int *burstsize)
{
	struct fw_sched_cmd cmd;
	int ret = 0;

	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_SCHED_CMD) |
				      F_FW_CMD_REQUEST |
				      F_FW_CMD_READ);
	cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
	cmd.u.params.sc = FW_SCHED_SC_PARAMS;
	cmd.u.params.ch = channel;
	cmd.u.params.cl = cls;

	ret = t4_wr_mbox_meat(adapter, adapter->mbox, &cmd, sizeof(cmd),
			      &cmd, 1);
	if (ret)
		goto out;

	*level = cmd.u.params.level;
	*mode = cmd.u.params.mode;
	*type = cmd.u.params.type;
	*rateunit = cmd.u.params.unit;
	*ratemode = cmd.u.params.rate;
	*minrate = be32_to_cpu(cmd.u.params.min);
	*maxrate = be32_to_cpu(cmd.u.params.max);
	*weight = be16_to_cpu(cmd.u.params.weight);
	*pktsize = be16_to_cpu(cmd.u.params.pktsize);
	*burstsize = be16_to_cpu(cmd.u.params.burstsize);

out:
	return ret;
}

/*
 *	t4_config_watchdog - configure (enable/disable) a watchdog timer
 *	@adapter: the adapter
 * 	@mbox: mailbox to use for the FW command
 * 	@pf: the PF owning the queue
 * 	@vf: the VF owning the queue
 *	@timeout: watchdog timeout in ms
 *	@action: watchdog timer / action
 *
 *	There are separate watchdog timers for each possible watchdog
 *	action.  Configure one of the watchdog timers by setting a non-zero
 *	timeout.  Disable a watchdog timer by using a timeout of zero.
 */
int t4_config_watchdog(struct adapter *adapter, unsigned int mbox,
		       unsigned int pf, unsigned int vf,
		       unsigned int timeout, unsigned int action)
{
	struct fw_watchdog_cmd wdog;
	unsigned int ticks;

	/*
	 * The watchdog command expects a timeout in units of 10ms so we need
	 * to convert it here (via rounding) and force a minimum of one 10ms
	 * "tick" if the timeout is non-zero but the convertion results in 0
	 * ticks.
	 */
	ticks = (timeout + 5)/10;
	if (timeout && !ticks)
		ticks = 1;

	memset(&wdog, 0, sizeof wdog);
	wdog.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_WATCHDOG_CMD) |
				     F_FW_CMD_REQUEST |
				     F_FW_CMD_WRITE |
				     V_FW_PARAMS_CMD_PFN(pf) |
				     V_FW_PARAMS_CMD_VFN(vf));
	wdog.retval_len16 = cpu_to_be32(FW_LEN16(wdog));
	wdog.timeout = cpu_to_be32(ticks);
	wdog.action = cpu_to_be32(action);

	return t4_wr_mbox(adapter, mbox, &wdog, sizeof wdog, NULL);
}

int t4_get_devlog_level(struct adapter *adapter, unsigned int *level)
{
	struct fw_devlog_cmd devlog_cmd;
	int ret;

	memset(&devlog_cmd, 0, sizeof(devlog_cmd));
	devlog_cmd.op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_DEVLOG_CMD) |
					     F_FW_CMD_REQUEST | F_FW_CMD_READ);
	devlog_cmd.retval_len16 = cpu_to_be32(FW_LEN16(devlog_cmd));
	ret = t4_wr_mbox(adapter, adapter->mbox, &devlog_cmd,
			 sizeof(devlog_cmd), &devlog_cmd);
	if (ret)
		return ret;

	*level = devlog_cmd.level;
	return 0;
}

int t4_set_devlog_level(struct adapter *adapter, unsigned int level)
{
	struct fw_devlog_cmd devlog_cmd;

	memset(&devlog_cmd, 0, sizeof(devlog_cmd));
	devlog_cmd.op_to_write = cpu_to_be32(V_FW_CMD_OP(FW_DEVLOG_CMD) |
					     F_FW_CMD_REQUEST |
					     F_FW_CMD_WRITE);
	devlog_cmd.level = level;
	devlog_cmd.retval_len16 = cpu_to_be32(FW_LEN16(devlog_cmd));
	return t4_wr_mbox(adapter, adapter->mbox, &devlog_cmd,
			  sizeof(devlog_cmd), &devlog_cmd);
}

int t4_configure_add_smac(struct adapter *adap)
{
	unsigned int param, val;
	int ret = 0;

	adap->params.smac_add_support = 0;
	param = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
		  V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_ADD_SMAC));
	/* Query FW to check if FW supports adding source mac address
	 * to TCAM feature or not.
	 * If FW returns 1, driver can use this feature and driver need to send
	 * FW_PARAMS_PARAM_DEV_ADD_SMAC write command with value 1 to
	 * enable adding smac to TCAM.
	 */
	ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1, &param, &val);
	if (ret)
		return ret;

	if (val == 1) {
		ret = t4_set_params(adap, adap->mbox, adap->pf, 0, 1,
				    &param, &val);
		if (!ret)
			/* Firmware allows adding explicit TCAM entries.
			 * Save this internally.
			 */
			adap->params.smac_add_support = 1;
	}

	return ret;
}

int t4_configure_ringbb(struct adapter *adap)
{
	unsigned int param, val;
	int ret = 0;

	param = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
		  V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_RING_BACKBONE));
	/* Query FW to check if FW supports ring switch feature or not.
	 * If FW returns 1, driver can use this feature and driver need to send
	 * FW_PARAMS_PARAM_DEV_RING_BACKBONE write command with value 1 to
	 * enable the ring backbone configuration.
	 */
	ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1, &param, &val);
	if (ret < 0) {
		CH_ERR(adap, "Querying FW using Ring backbone params command failed, err=%d\n",
			ret);
		goto out;
	}

	if (val != 1) {
		CH_ERR(adap, "FW doesnot support ringbackbone features\n");
		goto out;
	}

	ret = t4_set_params(adap, adap->mbox, adap->pf, 0, 1, &param, &val);
	if (ret < 0) {
		CH_ERR(adap, "Could not set Ringbackbone, err= %d\n",
			ret);
		goto out;
	}

out:
	return ret;
}

/*
 *	t4_set_vlan_acl - Set a VLAN id for the specified VF
 *	@adapter: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@vf: one of the VFs instantiated by the specified PF
 *	@vlan: The vlanid to be set
 *
 */
int t4_set_vlan_acl(struct adapter *adap, unsigned int mbox, unsigned int vf,
		    u16 vlan)
{
	struct fw_acl_vlan_cmd vlan_cmd;
	unsigned int enable;

	enable = (vlan ? F_FW_ACL_VLAN_CMD_EN : 0);
	memset(&vlan_cmd, 0, sizeof(vlan_cmd));
	vlan_cmd.op_to_vfn = cpu_to_be32(V_FW_CMD_OP(FW_ACL_VLAN_CMD) |
					 F_FW_CMD_REQUEST |
					 F_FW_CMD_WRITE |
					 F_FW_CMD_EXEC |
					 V_FW_ACL_VLAN_CMD_PFN(adap->pf) |
					 V_FW_ACL_VLAN_CMD_VFN(vf));
	vlan_cmd.en_to_len16 = cpu_to_be32(enable | FW_LEN16(vlan_cmd));
	/* Drop all packets that donot match vlan id */
	vlan_cmd.dropnovlan_fm = (enable
				  ? (F_FW_ACL_VLAN_CMD_DROPNOVLAN |
				     F_FW_ACL_VLAN_CMD_FM)
				  : 0);
	if (enable != 0) {
		vlan_cmd.nvlan = 1;
		vlan_cmd.vlanid[0] = cpu_to_be16(vlan);
	}

	return t4_wr_mbox(adap, adap->mbox, &vlan_cmd, sizeof(vlan_cmd), NULL);
}

/**
 *	t4_del_mac - Removes the exact-match filter for a MAC address
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@viid: the VI id
 *	@addr: the MAC address value
 *	@smac: if true, delete from only the smac region of MPS
 *
 *	Modifies an exact-match filter and sets it to the new MAC address if
 *	@idx >= 0, or adds the MAC address to a new filter if @idx < 0.  In the
 *	latter case the address is added persistently if @persist is %true.
 *
 *	Returns a negative error number or the index of the filter with the new
 *	MAC value.  Note that this index may differ from @idx.
 */
int t4_del_mac(struct adapter *adap, unsigned int mbox, unsigned int viid,
	       const u8 *addr, bool smac)
{
	int ret;
	struct fw_vi_mac_cmd c;
	struct fw_vi_mac_exact *p = c.u.exact;
	unsigned int max_mac_addr = adap->params.arch.mps_tcam_size;

	memset(&c, 0, sizeof(c));
	c.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_VI_MAC_CMD) |
				   F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
				   V_FW_VI_MAC_CMD_VIID(viid));
	c.freemacs_to_len16 = cpu_to_be32(
					V_FW_CMD_LEN16(1) |
					(smac ? F_FW_VI_MAC_CMD_IS_SMAC : 0));

	memcpy(p->macaddr, addr, sizeof(p->macaddr));
	p->valid_to_idx = cpu_to_be16(
				F_FW_VI_MAC_CMD_VALID |
				V_FW_VI_MAC_CMD_IDX(FW_VI_MAC_MAC_BASED_FREE));

	ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
	if (ret == 0) {
		ret = G_FW_VI_MAC_CMD_IDX(be16_to_cpu(p->valid_to_idx));
		if (ret < max_mac_addr)
			return -ENOMEM;
	}

	return ret;
}

/**
 *	t4_add_mac - Adds an exact-match filter for a MAC address
 *	@adap: the adapter
 *	@mbox: mailbox to use for the FW command
 *	@viid: the VI id
 *	@idx: index of existing filter for old value of MAC address, or -1
 *	@addr: the new MAC address value
 *	@persist: whether a new MAC allocation should be persistent
 *	@add_smt: if true also add the address to the HW SMT
 *	@smac: if true, update only the smac region of MPS
 *
 *	Modifies an exact-match filter and sets it to the new MAC address if
 *	@idx >= 0, or adds the MAC address to a new filter if @idx < 0.  In the
 *	latter case the address is added persistently if @persist is %true.
 *
 *	Returns a negative error number or the index of the filter with the new
 *	MAC value.  Note that this index may differ from @idx.
 */
int t4_add_mac(struct adapter *adap, unsigned int mbox, unsigned int viid,
	       int idx, const u8 *addr, bool persist, u8 *smt_idx, bool smac)
{
	int ret, mode;
	struct fw_vi_mac_cmd c;
	struct fw_vi_mac_exact *p = c.u.exact;
	unsigned int max_mac_addr = adap->params.arch.mps_tcam_size;

	if (idx < 0)		/* new allocation */
		idx = persist ? FW_VI_MAC_ADD_PERSIST_MAC : FW_VI_MAC_ADD_MAC;
	mode = smt_idx ? FW_VI_MAC_SMT_AND_MPSTCAM : FW_VI_MAC_MPS_TCAM_ENTRY;

	memset(&c, 0, sizeof(c));
	c.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_VI_MAC_CMD) |
				   F_FW_CMD_REQUEST | F_FW_CMD_WRITE |
				   V_FW_VI_MAC_CMD_VIID(viid));
	c.freemacs_to_len16 = cpu_to_be32(
				V_FW_CMD_LEN16(1) |
				(smac ? F_FW_VI_MAC_CMD_IS_SMAC : 0));
	p->valid_to_idx = cpu_to_be16(F_FW_VI_MAC_CMD_VALID |
				      V_FW_VI_MAC_CMD_SMAC_RESULT(mode) |
				      V_FW_VI_MAC_CMD_IDX(idx));
	memcpy(p->macaddr, addr, sizeof(p->macaddr));

	ret = t4_wr_mbox(adap, mbox, &c, sizeof(c), &c);
	if (ret == 0) {
		ret = G_FW_VI_MAC_CMD_IDX(be16_to_cpu(p->valid_to_idx));
		if (ret >= max_mac_addr)
			return -ENOMEM;
		if (smt_idx) {
			/* Does fw supports returning smt_idx? */
			if (adap->params.viid_smt_extn_support)
				*smt_idx = G_FW_VI_MAC_CMD_SMTID(be32_to_cpu(c.op_to_viid));
			else {
				/* In T4/T5, SMT contains 256 SMAC entries
				 * organized in 128 rows of 2 entries each.
				 * In T6, SMT contains 256 SMAC entries in
				 * 256 rows.
				 */
				if (CHELSIO_CHIP_VERSION(adap->params.chip) <= CHELSIO_T5)
					*smt_idx = ((viid & M_FW_VIID_VIN) << 1);
				else
					*smt_idx = (viid & M_FW_VIID_VIN);
			}
		}
	}

	return ret;
}