xref: /freebsd/sys/dev/cxgbe/adapter.h (revision adc56f5a383771f594829b7db9c263b6f0dcf1bd)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2011 Chelsio Communications, Inc.
5  * All rights reserved.
6  * Written by: Navdeep Parhar <np@FreeBSD.org>
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $FreeBSD$
30  *
31  */
32 
33 #ifndef __T4_ADAPTER_H__
34 #define __T4_ADAPTER_H__
35 
36 #include <sys/kernel.h>
37 #include <sys/bus.h>
38 #include <sys/counter.h>
39 #include <sys/rman.h>
40 #include <sys/types.h>
41 #include <sys/lock.h>
42 #include <sys/malloc.h>
43 #include <sys/rwlock.h>
44 #include <sys/sx.h>
45 #include <sys/vmem.h>
46 #include <vm/uma.h>
47 
48 #include <dev/pci/pcivar.h>
49 #include <dev/pci/pcireg.h>
50 #include <machine/bus.h>
51 #include <sys/socket.h>
52 #include <sys/sysctl.h>
53 #include <net/ethernet.h>
54 #include <net/if.h>
55 #include <net/if_var.h>
56 #include <net/if_media.h>
57 #include <netinet/in.h>
58 #include <netinet/tcp_lro.h>
59 
60 #include "offload.h"
61 #include "t4_ioctl.h"
62 #include "common/t4_msg.h"
63 #include "firmware/t4fw_interface.h"
64 
65 #define KTR_CXGBE	KTR_SPARE3
66 MALLOC_DECLARE(M_CXGBE);
67 #define CXGBE_UNIMPLEMENTED(s) \
68     panic("%s (%s, line %d) not implemented yet.", s, __FILE__, __LINE__)
69 
70 #if defined(__i386__) || defined(__amd64__)
71 static __inline void
72 prefetch(void *x)
73 {
74 	__asm volatile("prefetcht0 %0" :: "m" (*(unsigned long *)x));
75 }
76 #else
77 #define prefetch(x) __builtin_prefetch(x)
78 #endif
79 
80 #ifndef SYSCTL_ADD_UQUAD
81 #define SYSCTL_ADD_UQUAD SYSCTL_ADD_QUAD
82 #define sysctl_handle_64 sysctl_handle_quad
83 #define CTLTYPE_U64 CTLTYPE_QUAD
84 #endif
85 
86 SYSCTL_DECL(_hw_cxgbe);
87 
88 struct adapter;
89 typedef struct adapter adapter_t;
90 
91 enum {
92 	/*
93 	 * All ingress queues use this entry size.  Note that the firmware event
94 	 * queue and any iq expecting CPL_RX_PKT in the descriptor needs this to
95 	 * be at least 64.
96 	 */
97 	IQ_ESIZE = 64,
98 
99 	/* Default queue sizes for all kinds of ingress queues */
100 	FW_IQ_QSIZE = 256,
101 	RX_IQ_QSIZE = 1024,
102 
103 	/* All egress queues use this entry size */
104 	EQ_ESIZE = 64,
105 
106 	/* Default queue sizes for all kinds of egress queues */
107 	CTRL_EQ_QSIZE = 1024,
108 	TX_EQ_QSIZE = 1024,
109 
110 #if MJUMPAGESIZE != MCLBYTES
111 	SW_ZONE_SIZES = 4,	/* cluster, jumbop, jumbo9k, jumbo16k */
112 #else
113 	SW_ZONE_SIZES = 3,	/* cluster, jumbo9k, jumbo16k */
114 #endif
115 	CL_METADATA_SIZE = CACHE_LINE_SIZE,
116 
117 	SGE_MAX_WR_NDESC = SGE_MAX_WR_LEN / EQ_ESIZE, /* max WR size in desc */
118 	TX_SGL_SEGS = 39,
119 	TX_SGL_SEGS_TSO = 38,
120 	TX_SGL_SEGS_EO_TSO = 30,	/* XXX: lower for IPv6. */
121 	TX_WR_FLITS = SGE_MAX_WR_LEN / 8
122 };
123 
124 enum {
125 	/* adapter intr_type */
126 	INTR_INTX	= (1 << 0),
127 	INTR_MSI 	= (1 << 1),
128 	INTR_MSIX	= (1 << 2)
129 };
130 
131 enum {
132 	XGMAC_MTU	= (1 << 0),
133 	XGMAC_PROMISC	= (1 << 1),
134 	XGMAC_ALLMULTI	= (1 << 2),
135 	XGMAC_VLANEX	= (1 << 3),
136 	XGMAC_UCADDR	= (1 << 4),
137 	XGMAC_MCADDRS	= (1 << 5),
138 
139 	XGMAC_ALL	= 0xffff
140 };
141 
142 enum {
143 	/* flags understood by begin_synchronized_op */
144 	HOLD_LOCK	= (1 << 0),
145 	SLEEP_OK	= (1 << 1),
146 	INTR_OK		= (1 << 2),
147 
148 	/* flags understood by end_synchronized_op */
149 	LOCK_HELD	= HOLD_LOCK,
150 };
151 
152 enum {
153 	/* adapter flags */
154 	FULL_INIT_DONE	= (1 << 0),
155 	FW_OK		= (1 << 1),
156 	CHK_MBOX_ACCESS	= (1 << 2),
157 	MASTER_PF	= (1 << 3),
158 	ADAP_SYSCTL_CTX	= (1 << 4),
159 	ADAP_ERR	= (1 << 5),
160 	BUF_PACKING_OK	= (1 << 6),
161 	IS_VF		= (1 << 7),
162 	KERN_TLS_OK	= (1 << 8),
163 
164 	CXGBE_BUSY	= (1 << 9),
165 
166 	/* port flags */
167 	HAS_TRACEQ	= (1 << 3),
168 	FIXED_IFMEDIA	= (1 << 4),	/* ifmedia list doesn't change. */
169 
170 	/* VI flags */
171 	DOOMED		= (1 << 0),
172 	VI_INIT_DONE	= (1 << 1),
173 	VI_SYSCTL_CTX	= (1 << 2),
174 
175 	/* adapter debug_flags */
176 	DF_DUMP_MBOX		= (1 << 0),	/* Log all mbox cmd/rpl. */
177 	DF_LOAD_FW_ANYTIME	= (1 << 1),	/* Allow LOAD_FW after init */
178 	DF_DISABLE_TCB_CACHE	= (1 << 2),	/* Disable TCB cache (T6+) */
179 	DF_DISABLE_CFG_RETRY	= (1 << 3),	/* Disable fallback config */
180 	DF_VERBOSE_SLOWINTR	= (1 << 4),	/* Chatty slow intr handler */
181 };
182 
183 #define IS_DOOMED(vi)	((vi)->flags & DOOMED)
184 #define SET_DOOMED(vi)	do {(vi)->flags |= DOOMED;} while (0)
185 #define IS_BUSY(sc)	((sc)->flags & CXGBE_BUSY)
186 #define SET_BUSY(sc)	do {(sc)->flags |= CXGBE_BUSY;} while (0)
187 #define CLR_BUSY(sc)	do {(sc)->flags &= ~CXGBE_BUSY;} while (0)
188 
189 struct vi_info {
190 	device_t dev;
191 	struct port_info *pi;
192 
193 	struct ifnet *ifp;
194 
195 	unsigned long flags;
196 	int if_flags;
197 
198 	uint16_t *rss, *nm_rss;
199 	uint16_t viid;		/* opaque VI identifier */
200 	uint16_t smt_idx;
201 	uint16_t vin;
202 	uint8_t vfvld;
203 	int16_t  xact_addr_filt;/* index of exact MAC address filter */
204 	uint16_t rss_size;	/* size of VI's RSS table slice */
205 	uint16_t rss_base;	/* start of VI's RSS table slice */
206 	int hashen;
207 
208 	int nintr;
209 	int first_intr;
210 
211 	/* These need to be int as they are used in sysctl */
212 	int ntxq;		/* # of tx queues */
213 	int first_txq;		/* index of first tx queue */
214 	int rsrv_noflowq; 	/* Reserve queue 0 for non-flowid packets */
215 	int nrxq;		/* # of rx queues */
216 	int first_rxq;		/* index of first rx queue */
217 	int nofldtxq;		/* # of offload tx queues */
218 	int first_ofld_txq;	/* index of first offload tx queue */
219 	int nofldrxq;		/* # of offload rx queues */
220 	int first_ofld_rxq;	/* index of first offload rx queue */
221 	int nnmtxq;
222 	int first_nm_txq;
223 	int nnmrxq;
224 	int first_nm_rxq;
225 	int tmr_idx;
226 	int ofld_tmr_idx;
227 	int pktc_idx;
228 	int ofld_pktc_idx;
229 	int qsize_rxq;
230 	int qsize_txq;
231 
232 	struct timeval last_refreshed;
233 	struct fw_vi_stats_vf stats;
234 
235 	struct callout tick;
236 	struct sysctl_ctx_list ctx;	/* from ifconfig up to driver detach */
237 
238 	uint8_t hw_addr[ETHER_ADDR_LEN]; /* factory MAC address, won't change */
239 };
240 
241 struct tx_ch_rl_params {
242 	enum fw_sched_params_rate ratemode;	/* %port (REL) or kbps (ABS) */
243 	uint32_t maxrate;
244 };
245 
246 enum {
247 	CLRL_USER	= (1 << 0),	/* allocated manually. */
248 	CLRL_SYNC	= (1 << 1),	/* sync hw update in progress. */
249 	CLRL_ASYNC	= (1 << 2),	/* async hw update requested. */
250 	CLRL_ERR	= (1 << 3),	/* last hw setup ended in error. */
251 };
252 
253 struct tx_cl_rl_params {
254 	int refcount;
255 	uint8_t flags;
256 	enum fw_sched_params_rate ratemode;	/* %port REL or ABS value */
257 	enum fw_sched_params_unit rateunit;	/* kbps or pps (when ABS) */
258 	enum fw_sched_params_mode mode;		/* aggr or per-flow */
259 	uint32_t maxrate;
260 	uint16_t pktsize;
261 	uint16_t burstsize;
262 };
263 
264 /* Tx scheduler parameters for a channel/port */
265 struct tx_sched_params {
266 	/* Channel Rate Limiter */
267 	struct tx_ch_rl_params ch_rl;
268 
269 	/* Class WRR */
270 	/* XXX */
271 
272 	/* Class Rate Limiter (including the default pktsize and burstsize). */
273 	int pktsize;
274 	int burstsize;
275 	struct tx_cl_rl_params cl_rl[];
276 };
277 
278 struct port_info {
279 	device_t dev;
280 	struct adapter *adapter;
281 
282 	struct vi_info *vi;
283 	int nvi;
284 	int up_vis;
285 	int uld_vis;
286 
287 	struct tx_sched_params *sched_params;
288 
289 	struct mtx pi_lock;
290 	char lockname[16];
291 	unsigned long flags;
292 
293 	uint8_t  lport;		/* associated offload logical port */
294 	int8_t   mdio_addr;
295 	uint8_t  port_type;
296 	uint8_t  mod_type;
297 	uint8_t  port_id;
298 	uint8_t  tx_chan;
299 	uint8_t  mps_bg_map;	/* rx MPS buffer group bitmap */
300 	uint8_t  rx_e_chan_map;	/* rx TP e-channel bitmap */
301 
302 	struct link_config link_cfg;
303 	struct ifmedia media;
304 
305 	struct timeval last_refreshed;
306  	struct port_stats stats;
307 	u_int tnl_cong_drops;
308 	u_int tx_parse_error;
309 	u_long	tx_tls_records;
310 	u_long	tx_tls_octets;
311 	u_long	rx_tls_records;
312 	u_long	rx_tls_octets;
313 
314 	struct callout tick;
315 };
316 
317 #define	IS_MAIN_VI(vi)		((vi) == &((vi)->pi->vi[0]))
318 
319 /* Where the cluster came from, how it has been carved up. */
320 struct cluster_layout {
321 	int8_t zidx;
322 	int8_t hwidx;
323 	uint16_t region1;	/* mbufs laid out within this region */
324 				/* region2 is the DMA region */
325 	uint16_t region3;	/* cluster_metadata within this region */
326 };
327 
328 struct cluster_metadata {
329 	u_int refcount;
330 	struct fl_sdesc *sd;	/* For debug only.  Could easily be stale */
331 };
332 
333 struct fl_sdesc {
334 	caddr_t cl;
335 	uint16_t nmbuf;	/* # of driver originated mbufs with ref on cluster */
336 	struct cluster_layout cll;
337 };
338 
339 struct tx_desc {
340 	__be64 flit[8];
341 };
342 
343 struct tx_sdesc {
344 	struct mbuf *m;		/* m_nextpkt linked chain of frames */
345 	uint8_t desc_used;	/* # of hardware descriptors used by the WR */
346 };
347 
348 
349 #define IQ_PAD (IQ_ESIZE - sizeof(struct rsp_ctrl) - sizeof(struct rss_header))
350 struct iq_desc {
351 	struct rss_header rss;
352 	uint8_t cpl[IQ_PAD];
353 	struct rsp_ctrl rsp;
354 };
355 #undef IQ_PAD
356 CTASSERT(sizeof(struct iq_desc) == IQ_ESIZE);
357 
358 enum {
359 	/* iq flags */
360 	IQ_ALLOCATED	= (1 << 0),	/* firmware resources allocated */
361 	IQ_HAS_FL	= (1 << 1),	/* iq associated with a freelist */
362 	IQ_RX_TIMESTAMP	= (1 << 2),	/* provide the SGE rx timestamp */
363 	IQ_LRO_ENABLED	= (1 << 3),	/* iq is an eth rxq with LRO enabled */
364 	IQ_ADJ_CREDIT	= (1 << 4),	/* hw is off by 1 credit for this iq */
365 
366 	/* iq state */
367 	IQS_DISABLED	= 0,
368 	IQS_BUSY	= 1,
369 	IQS_IDLE	= 2,
370 
371 	/* netmap related flags */
372 	NM_OFF	= 0,
373 	NM_ON	= 1,
374 	NM_BUSY	= 2,
375 };
376 
377 enum {
378 	CPL_COOKIE_RESERVED = 0,
379 	CPL_COOKIE_FILTER,
380 	CPL_COOKIE_DDP0,
381 	CPL_COOKIE_DDP1,
382 	CPL_COOKIE_TOM,
383 	CPL_COOKIE_HASHFILTER,
384 	CPL_COOKIE_ETHOFLD,
385 	CPL_COOKIE_KERN_TLS,
386 
387 	NUM_CPL_COOKIES = 8	/* Limited by M_COOKIE.  Do not increase. */
388 };
389 
390 struct sge_iq;
391 struct rss_header;
392 typedef int (*cpl_handler_t)(struct sge_iq *, const struct rss_header *,
393     struct mbuf *);
394 typedef int (*an_handler_t)(struct sge_iq *, const struct rsp_ctrl *);
395 typedef int (*fw_msg_handler_t)(struct adapter *, const __be64 *);
396 
397 /*
398  * Ingress Queue: T4 is producer, driver is consumer.
399  */
400 struct sge_iq {
401 	uint32_t flags;
402 	volatile int state;
403 	struct adapter *adapter;
404 	struct iq_desc  *desc;	/* KVA of descriptor ring */
405 	int8_t   intr_pktc_idx;	/* packet count threshold index */
406 	uint8_t  gen;		/* generation bit */
407 	uint8_t  intr_params;	/* interrupt holdoff parameters */
408 	uint8_t  intr_next;	/* XXX: holdoff for next interrupt */
409 	uint16_t qsize;		/* size (# of entries) of the queue */
410 	uint16_t sidx;		/* index of the entry with the status page */
411 	uint16_t cidx;		/* consumer index */
412 	uint16_t cntxt_id;	/* SGE context id for the iq */
413 	uint16_t abs_id;	/* absolute SGE id for the iq */
414 
415 	STAILQ_ENTRY(sge_iq) link;
416 
417 	bus_dma_tag_t desc_tag;
418 	bus_dmamap_t desc_map;
419 	bus_addr_t ba;		/* bus address of descriptor ring */
420 };
421 
422 enum {
423 	EQ_CTRL		= 1,
424 	EQ_ETH		= 2,
425 	EQ_OFLD		= 3,
426 
427 	/* eq flags */
428 	EQ_TYPEMASK	= 0x3,		/* 2 lsbits hold the type (see above) */
429 	EQ_ALLOCATED	= (1 << 2),	/* firmware resources allocated */
430 	EQ_ENABLED	= (1 << 3),	/* open for business */
431 	EQ_QFLUSH	= (1 << 4),	/* if_qflush in progress */
432 };
433 
434 /* Listed in order of preference.  Update t4_sysctls too if you change these */
435 enum {DOORBELL_UDB, DOORBELL_WCWR, DOORBELL_UDBWC, DOORBELL_KDB};
436 
437 /*
438  * Egress Queue: driver is producer, T4 is consumer.
439  *
440  * Note: A free list is an egress queue (driver produces the buffers and T4
441  * consumes them) but it's special enough to have its own struct (see sge_fl).
442  */
443 struct sge_eq {
444 	unsigned int flags;	/* MUST be first */
445 	unsigned int cntxt_id;	/* SGE context id for the eq */
446 	unsigned int abs_id;	/* absolute SGE id for the eq */
447 	struct mtx eq_lock;
448 
449 	struct tx_desc *desc;	/* KVA of descriptor ring */
450 	uint8_t doorbells;
451 	volatile uint32_t *udb;	/* KVA of doorbell (lies within BAR2) */
452 	u_int udb_qid;		/* relative qid within the doorbell page */
453 	uint16_t sidx;		/* index of the entry with the status page */
454 	uint16_t cidx;		/* consumer idx (desc idx) */
455 	uint16_t pidx;		/* producer idx (desc idx) */
456 	uint16_t equeqidx;	/* EQUEQ last requested at this pidx */
457 	uint16_t dbidx;		/* pidx of the most recent doorbell */
458 	uint16_t iqid;		/* iq that gets egr_update for the eq */
459 	uint8_t tx_chan;	/* tx channel used by the eq */
460 	volatile u_int equiq;	/* EQUIQ outstanding */
461 
462 	bus_dma_tag_t desc_tag;
463 	bus_dmamap_t desc_map;
464 	bus_addr_t ba;		/* bus address of descriptor ring */
465 	char lockname[16];
466 };
467 
468 struct sw_zone_info {
469 	uma_zone_t zone;	/* zone that this cluster comes from */
470 	int size;		/* size of cluster: 2K, 4K, 9K, 16K, etc. */
471 	int type;		/* EXT_xxx type of the cluster */
472 	int8_t head_hwidx;
473 	int8_t tail_hwidx;
474 };
475 
476 struct hw_buf_info {
477 	int8_t zidx;		/* backpointer to zone; -ve means unused */
478 	int8_t next;		/* next hwidx for this zone; -1 means no more */
479 	int size;
480 };
481 
482 enum {
483 	NUM_MEMWIN = 3,
484 
485 	MEMWIN0_APERTURE = 2048,
486 	MEMWIN0_BASE     = 0x1b800,
487 
488 	MEMWIN1_APERTURE = 32768,
489 	MEMWIN1_BASE     = 0x28000,
490 
491 	MEMWIN2_APERTURE_T4 = 65536,
492 	MEMWIN2_BASE_T4     = 0x30000,
493 
494 	MEMWIN2_APERTURE_T5 = 128 * 1024,
495 	MEMWIN2_BASE_T5     = 0x60000,
496 };
497 
498 struct memwin {
499 	struct rwlock mw_lock __aligned(CACHE_LINE_SIZE);
500 	uint32_t mw_base;	/* constant after setup_memwin */
501 	uint32_t mw_aperture;	/* ditto */
502 	uint32_t mw_curpos;	/* protected by mw_lock */
503 };
504 
505 enum {
506 	FL_STARVING	= (1 << 0), /* on the adapter's list of starving fl's */
507 	FL_DOOMED	= (1 << 1), /* about to be destroyed */
508 	FL_BUF_PACKING	= (1 << 2), /* buffer packing enabled */
509 	FL_BUF_RESUME	= (1 << 3), /* resume from the middle of the frame */
510 };
511 
512 #define FL_RUNNING_LOW(fl) \
513     (IDXDIFF(fl->dbidx * 8, fl->cidx, fl->sidx * 8) <= fl->lowat)
514 #define FL_NOT_RUNNING_LOW(fl) \
515     (IDXDIFF(fl->dbidx * 8, fl->cidx, fl->sidx * 8) >= 2 * fl->lowat)
516 
517 struct sge_fl {
518 	struct mtx fl_lock;
519 	__be64 *desc;		/* KVA of descriptor ring, ptr to addresses */
520 	struct fl_sdesc *sdesc;	/* KVA of software descriptor ring */
521 	struct cluster_layout cll_def;	/* default refill zone, layout */
522 	uint16_t lowat;		/* # of buffers <= this means fl needs help */
523 	int flags;
524 	uint16_t buf_boundary;
525 
526 	/* The 16b idx all deal with hw descriptors */
527 	uint16_t dbidx;		/* hw pidx after last doorbell */
528 	uint16_t sidx;		/* index of status page */
529 	volatile uint16_t hw_cidx;
530 
531 	/* The 32b idx are all buffer idx, not hardware descriptor idx */
532 	uint32_t cidx;		/* consumer index */
533 	uint32_t pidx;		/* producer index */
534 
535 	uint32_t dbval;
536 	u_int rx_offset;	/* offset in fl buf (when buffer packing) */
537 	volatile uint32_t *udb;
538 
539 	uint64_t mbuf_allocated;/* # of mbuf allocated from zone_mbuf */
540 	uint64_t mbuf_inlined;	/* # of mbuf created within clusters */
541 	uint64_t cl_allocated;	/* # of clusters allocated */
542 	uint64_t cl_recycled;	/* # of clusters recycled */
543 	uint64_t cl_fast_recycled; /* # of clusters recycled (fast) */
544 
545 	/* These 3 are valid when FL_BUF_RESUME is set, stale otherwise. */
546 	struct mbuf *m0;
547 	struct mbuf **pnext;
548 	u_int remaining;
549 
550 	uint16_t qsize;		/* # of hw descriptors (status page included) */
551 	uint16_t cntxt_id;	/* SGE context id for the freelist */
552 	TAILQ_ENTRY(sge_fl) link; /* All starving freelists */
553 	bus_dma_tag_t desc_tag;
554 	bus_dmamap_t desc_map;
555 	char lockname[16];
556 	bus_addr_t ba;		/* bus address of descriptor ring */
557 	struct cluster_layout cll_alt;	/* alternate refill zone, layout */
558 };
559 
560 struct mp_ring;
561 
562 /* txq: SGE egress queue + what's needed for Ethernet NIC */
563 struct sge_txq {
564 	struct sge_eq eq;	/* MUST be first */
565 
566 	struct ifnet *ifp;	/* the interface this txq belongs to */
567 	struct mp_ring *r;	/* tx software ring */
568 	struct tx_sdesc *sdesc;	/* KVA of software descriptor ring */
569 	struct sglist *gl;
570 	__be32 cpl_ctrl0;	/* for convenience */
571 	int tc_idx;		/* traffic class */
572 
573 	struct task tx_reclaim_task;
574 	/* stats for common events first */
575 
576 	uint64_t txcsum;	/* # of times hardware assisted with checksum */
577 	uint64_t tso_wrs;	/* # of TSO work requests */
578 	uint64_t vlan_insertion;/* # of times VLAN tag was inserted */
579 	uint64_t imm_wrs;	/* # of work requests with immediate data */
580 	uint64_t sgl_wrs;	/* # of work requests with direct SGL */
581 	uint64_t txpkt_wrs;	/* # of txpkt work requests (not coalesced) */
582 	uint64_t txpkts0_wrs;	/* # of type0 coalesced tx work requests */
583 	uint64_t txpkts1_wrs;	/* # of type1 coalesced tx work requests */
584 	uint64_t txpkts0_pkts;	/* # of frames in type0 coalesced tx WRs */
585 	uint64_t txpkts1_pkts;	/* # of frames in type1 coalesced tx WRs */
586 	uint64_t raw_wrs;	/* # of raw work requests (alloc_wr_mbuf) */
587 	uint64_t tls_wrs;	/* # of TLS work requests */
588 
589 	uint64_t kern_tls_records;
590 	uint64_t kern_tls_short;
591 	uint64_t kern_tls_partial;
592 	uint64_t kern_tls_full;
593 	uint64_t kern_tls_octets;
594 	uint64_t kern_tls_waste;
595 	uint64_t kern_tls_options;
596 	uint64_t kern_tls_header;
597 	uint64_t kern_tls_fin;
598 	uint64_t kern_tls_fin_short;
599 	uint64_t kern_tls_cbc;
600 	uint64_t kern_tls_gcm;
601 
602 	/* stats for not-that-common events */
603 
604 	/* Optional scratch space for constructing work requests. */
605 	uint8_t ss[SGE_MAX_WR_LEN] __aligned(16);
606 } __aligned(CACHE_LINE_SIZE);
607 
608 /* rxq: SGE ingress queue + SGE free list + miscellaneous items */
609 struct sge_rxq {
610 	struct sge_iq iq;	/* MUST be first */
611 	struct sge_fl fl;	/* MUST follow iq */
612 
613 	struct ifnet *ifp;	/* the interface this rxq belongs to */
614 #if defined(INET) || defined(INET6)
615 	struct lro_ctrl lro;	/* LRO state */
616 #endif
617 
618 	/* stats for common events first */
619 
620 	uint64_t rxcsum;	/* # of times hardware assisted with checksum */
621 	uint64_t vlan_extraction;/* # of times VLAN tag was extracted */
622 
623 	/* stats for not-that-common events */
624 
625 } __aligned(CACHE_LINE_SIZE);
626 
627 static inline struct sge_rxq *
628 iq_to_rxq(struct sge_iq *iq)
629 {
630 
631 	return (__containerof(iq, struct sge_rxq, iq));
632 }
633 
634 
635 /* ofld_rxq: SGE ingress queue + SGE free list + miscellaneous items */
636 struct sge_ofld_rxq {
637 	struct sge_iq iq;	/* MUST be first */
638 	struct sge_fl fl;	/* MUST follow iq */
639 } __aligned(CACHE_LINE_SIZE);
640 
641 static inline struct sge_ofld_rxq *
642 iq_to_ofld_rxq(struct sge_iq *iq)
643 {
644 
645 	return (__containerof(iq, struct sge_ofld_rxq, iq));
646 }
647 
648 struct wrqe {
649 	STAILQ_ENTRY(wrqe) link;
650 	struct sge_wrq *wrq;
651 	int wr_len;
652 	char wr[] __aligned(16);
653 };
654 
655 struct wrq_cookie {
656 	TAILQ_ENTRY(wrq_cookie) link;
657 	int ndesc;
658 	int pidx;
659 };
660 
661 /*
662  * wrq: SGE egress queue that is given prebuilt work requests.  Both the control
663  * and offload tx queues are of this type.
664  */
665 struct sge_wrq {
666 	struct sge_eq eq;	/* MUST be first */
667 
668 	struct adapter *adapter;
669 	struct task wrq_tx_task;
670 
671 	/* Tx desc reserved but WR not "committed" yet. */
672 	TAILQ_HEAD(wrq_incomplete_wrs , wrq_cookie) incomplete_wrs;
673 
674 	/* List of WRs ready to go out as soon as descriptors are available. */
675 	STAILQ_HEAD(, wrqe) wr_list;
676 	u_int nwr_pending;
677 	u_int ndesc_needed;
678 
679 	/* stats for common events first */
680 
681 	uint64_t tx_wrs_direct;	/* # of WRs written directly to desc ring. */
682 	uint64_t tx_wrs_ss;	/* # of WRs copied from scratch space. */
683 	uint64_t tx_wrs_copied;	/* # of WRs queued and copied to desc ring. */
684 
685 	/* stats for not-that-common events */
686 
687 	/*
688 	 * Scratch space for work requests that wrap around after reaching the
689 	 * status page, and some information about the last WR that used it.
690 	 */
691 	uint16_t ss_pidx;
692 	uint16_t ss_len;
693 	uint8_t ss[SGE_MAX_WR_LEN];
694 
695 } __aligned(CACHE_LINE_SIZE);
696 
697 #define INVALID_NM_RXQ_CNTXT_ID ((uint16_t)(-1))
698 struct sge_nm_rxq {
699 	volatile int nm_state;	/* NM_OFF, NM_ON, or NM_BUSY */
700 	struct vi_info *vi;
701 
702 	struct iq_desc *iq_desc;
703 	uint16_t iq_abs_id;
704 	uint16_t iq_cntxt_id;
705 	uint16_t iq_cidx;
706 	uint16_t iq_sidx;
707 	uint8_t iq_gen;
708 
709 	__be64  *fl_desc;
710 	uint16_t fl_cntxt_id;
711 	uint32_t fl_cidx;
712 	uint32_t fl_pidx;
713 	uint32_t fl_sidx;
714 	uint32_t fl_db_val;
715 	u_int fl_hwidx:4;
716 
717 	u_int fl_db_saved;
718 	u_int nid;		/* netmap ring # for this queue */
719 
720 	/* infrequently used items after this */
721 
722 	bus_dma_tag_t iq_desc_tag;
723 	bus_dmamap_t iq_desc_map;
724 	bus_addr_t iq_ba;
725 	int intr_idx;
726 
727 	bus_dma_tag_t fl_desc_tag;
728 	bus_dmamap_t fl_desc_map;
729 	bus_addr_t fl_ba;
730 } __aligned(CACHE_LINE_SIZE);
731 
732 #define INVALID_NM_TXQ_CNTXT_ID ((u_int)(-1))
733 struct sge_nm_txq {
734 	struct tx_desc *desc;
735 	uint16_t cidx;
736 	uint16_t pidx;
737 	uint16_t sidx;
738 	uint16_t equiqidx;	/* EQUIQ last requested at this pidx */
739 	uint16_t equeqidx;	/* EQUEQ last requested at this pidx */
740 	uint16_t dbidx;		/* pidx of the most recent doorbell */
741 	uint8_t doorbells;
742 	volatile uint32_t *udb;
743 	u_int udb_qid;
744 	u_int cntxt_id;
745 	__be32 cpl_ctrl0;	/* for convenience */
746 	u_int nid;		/* netmap ring # for this queue */
747 
748 	/* infrequently used items after this */
749 
750 	bus_dma_tag_t desc_tag;
751 	bus_dmamap_t desc_map;
752 	bus_addr_t ba;
753 	int iqidx;
754 } __aligned(CACHE_LINE_SIZE);
755 
756 struct sge {
757 	int nrxq;	/* total # of Ethernet rx queues */
758 	int ntxq;	/* total # of Ethernet tx queues */
759 	int nofldrxq;	/* total # of TOE rx queues */
760 	int nofldtxq;	/* total # of TOE tx queues */
761 	int nnmrxq;	/* total # of netmap rx queues */
762 	int nnmtxq;	/* total # of netmap tx queues */
763 	int niq;	/* total # of ingress queues */
764 	int neq;	/* total # of egress queues */
765 
766 	struct sge_iq fwq;	/* Firmware event queue */
767 	struct sge_wrq *ctrlq;	/* Control queues */
768 	struct sge_txq *txq;	/* NIC tx queues */
769 	struct sge_rxq *rxq;	/* NIC rx queues */
770 	struct sge_wrq *ofld_txq;	/* TOE tx queues */
771 	struct sge_ofld_rxq *ofld_rxq;	/* TOE rx queues */
772 	struct sge_nm_txq *nm_txq;	/* netmap tx queues */
773 	struct sge_nm_rxq *nm_rxq;	/* netmap rx queues */
774 
775 	uint16_t iq_start;	/* first cntxt_id */
776 	uint16_t iq_base;	/* first abs_id */
777 	int eq_start;		/* first cntxt_id */
778 	int eq_base;		/* first abs_id */
779 	struct sge_iq **iqmap;	/* iq->cntxt_id to iq mapping */
780 	struct sge_eq **eqmap;	/* eq->cntxt_id to eq mapping */
781 
782 	int8_t safe_hwidx1;	/* may not have room for metadata */
783 	int8_t safe_hwidx2;	/* with room for metadata and maybe more */
784 	struct sw_zone_info sw_zone_info[SW_ZONE_SIZES];
785 	struct hw_buf_info hw_buf_info[SGE_FLBUF_SIZES];
786 };
787 
788 struct devnames {
789 	const char *nexus_name;
790 	const char *ifnet_name;
791 	const char *vi_ifnet_name;
792 	const char *pf03_drv_name;
793 	const char *vf_nexus_name;
794 	const char *vf_ifnet_name;
795 };
796 
797 struct clip_entry;
798 
799 struct adapter {
800 	SLIST_ENTRY(adapter) link;
801 	device_t dev;
802 	struct cdev *cdev;
803 	const struct devnames *names;
804 
805 	/* PCIe register resources */
806 	int regs_rid;
807 	struct resource *regs_res;
808 	int msix_rid;
809 	struct resource *msix_res;
810 	bus_space_handle_t bh;
811 	bus_space_tag_t bt;
812 	bus_size_t mmio_len;
813 	int udbs_rid;
814 	struct resource *udbs_res;
815 	volatile uint8_t *udbs_base;
816 
817 	unsigned int pf;
818 	unsigned int mbox;
819 	unsigned int vpd_busy;
820 	unsigned int vpd_flag;
821 
822 	/* Interrupt information */
823 	int intr_type;
824 	int intr_count;
825 	struct irq {
826 		struct resource *res;
827 		int rid;
828 		void *tag;
829 		struct sge_rxq *rxq;
830 		struct sge_nm_rxq *nm_rxq;
831 	} __aligned(CACHE_LINE_SIZE) *irq;
832 	int sge_gts_reg;
833 	int sge_kdoorbell_reg;
834 
835 	bus_dma_tag_t dmat;	/* Parent DMA tag */
836 
837 	struct sge sge;
838 	int lro_timeout;
839 	int sc_do_rxcopy;
840 
841 	struct taskqueue *tq[MAX_NCHAN];	/* General purpose taskqueues */
842 	struct port_info *port[MAX_NPORTS];
843 	uint8_t chan_map[MAX_NCHAN];		/* channel -> port */
844 
845 	struct mtx clip_table_lock;
846 	TAILQ_HEAD(, clip_entry) clip_table;
847 	int clip_gen;
848 
849 	void *tom_softc;	/* (struct tom_data *) */
850 	struct tom_tunables tt;
851 	struct t4_offload_policy *policy;
852 	struct rwlock policy_lock;
853 
854 	void *iwarp_softc;	/* (struct c4iw_dev *) */
855 	struct iw_tunables iwt;
856 	void *iscsi_ulp_softc;	/* (struct cxgbei_data *) */
857 	void *ccr_softc;	/* (struct ccr_softc *) */
858 	struct l2t_data *l2t;	/* L2 table */
859 	struct smt_data *smt;	/* Source MAC Table */
860 	struct tid_info tids;
861 	vmem_t *key_map;
862 	struct tls_tunables tlst;
863 
864 	uint8_t doorbells;
865 	int offload_map;	/* ports with IFCAP_TOE enabled */
866 	int active_ulds;	/* ULDs activated on this adapter */
867 	int flags;
868 	int debug_flags;
869 
870 	char ifp_lockname[16];
871 	struct mtx ifp_lock;
872 	struct ifnet *ifp;	/* tracer ifp */
873 	struct ifmedia media;
874 	int traceq;		/* iq used by all tracers, -1 if none */
875 	int tracer_valid;	/* bitmap of valid tracers */
876 	int tracer_enabled;	/* bitmap of enabled tracers */
877 
878 	char fw_version[16];
879 	char tp_version[16];
880 	char er_version[16];
881 	char bs_version[16];
882 	char cfg_file[32];
883 	u_int cfcsum;
884 	struct adapter_params params;
885 	const struct chip_params *chip_params;
886 	struct t4_virt_res vres;
887 
888 	uint16_t nbmcaps;
889 	uint16_t linkcaps;
890 	uint16_t switchcaps;
891 	uint16_t niccaps;
892 	uint16_t toecaps;
893 	uint16_t rdmacaps;
894 	uint16_t cryptocaps;
895 	uint16_t iscsicaps;
896 	uint16_t fcoecaps;
897 
898 	struct sysctl_ctx_list ctx; /* from adapter_full_init to full_uninit */
899 
900 	struct mtx sc_lock;
901 	char lockname[16];
902 
903 	/* Starving free lists */
904 	struct mtx sfl_lock;	/* same cache-line as sc_lock? but that's ok */
905 	TAILQ_HEAD(, sge_fl) sfl;
906 	struct callout sfl_callout;
907 
908 	struct mtx reg_lock;	/* for indirect register access */
909 
910 	struct memwin memwin[NUM_MEMWIN];	/* memory windows */
911 
912 	struct mtx tc_lock;
913 	struct task tc_task;
914 
915 	const char *last_op;
916 	const void *last_op_thr;
917 	int last_op_flags;
918 
919 	int swintr;
920 	int sensor_resets;
921 
922 	struct callout ktls_tick;
923 };
924 
925 #define ADAPTER_LOCK(sc)		mtx_lock(&(sc)->sc_lock)
926 #define ADAPTER_UNLOCK(sc)		mtx_unlock(&(sc)->sc_lock)
927 #define ADAPTER_LOCK_ASSERT_OWNED(sc)	mtx_assert(&(sc)->sc_lock, MA_OWNED)
928 #define ADAPTER_LOCK_ASSERT_NOTOWNED(sc) mtx_assert(&(sc)->sc_lock, MA_NOTOWNED)
929 
930 #define ASSERT_SYNCHRONIZED_OP(sc)	\
931     KASSERT(IS_BUSY(sc) && \
932 	(mtx_owned(&(sc)->sc_lock) || sc->last_op_thr == curthread), \
933 	("%s: operation not synchronized.", __func__))
934 
935 #define PORT_LOCK(pi)			mtx_lock(&(pi)->pi_lock)
936 #define PORT_UNLOCK(pi)			mtx_unlock(&(pi)->pi_lock)
937 #define PORT_LOCK_ASSERT_OWNED(pi)	mtx_assert(&(pi)->pi_lock, MA_OWNED)
938 #define PORT_LOCK_ASSERT_NOTOWNED(pi)	mtx_assert(&(pi)->pi_lock, MA_NOTOWNED)
939 
940 #define FL_LOCK(fl)			mtx_lock(&(fl)->fl_lock)
941 #define FL_TRYLOCK(fl)			mtx_trylock(&(fl)->fl_lock)
942 #define FL_UNLOCK(fl)			mtx_unlock(&(fl)->fl_lock)
943 #define FL_LOCK_ASSERT_OWNED(fl)	mtx_assert(&(fl)->fl_lock, MA_OWNED)
944 #define FL_LOCK_ASSERT_NOTOWNED(fl)	mtx_assert(&(fl)->fl_lock, MA_NOTOWNED)
945 
946 #define RXQ_FL_LOCK(rxq)		FL_LOCK(&(rxq)->fl)
947 #define RXQ_FL_UNLOCK(rxq)		FL_UNLOCK(&(rxq)->fl)
948 #define RXQ_FL_LOCK_ASSERT_OWNED(rxq)	FL_LOCK_ASSERT_OWNED(&(rxq)->fl)
949 #define RXQ_FL_LOCK_ASSERT_NOTOWNED(rxq) FL_LOCK_ASSERT_NOTOWNED(&(rxq)->fl)
950 
951 #define EQ_LOCK(eq)			mtx_lock(&(eq)->eq_lock)
952 #define EQ_TRYLOCK(eq)			mtx_trylock(&(eq)->eq_lock)
953 #define EQ_UNLOCK(eq)			mtx_unlock(&(eq)->eq_lock)
954 #define EQ_LOCK_ASSERT_OWNED(eq)	mtx_assert(&(eq)->eq_lock, MA_OWNED)
955 #define EQ_LOCK_ASSERT_NOTOWNED(eq)	mtx_assert(&(eq)->eq_lock, MA_NOTOWNED)
956 
957 #define TXQ_LOCK(txq)			EQ_LOCK(&(txq)->eq)
958 #define TXQ_TRYLOCK(txq)		EQ_TRYLOCK(&(txq)->eq)
959 #define TXQ_UNLOCK(txq)			EQ_UNLOCK(&(txq)->eq)
960 #define TXQ_LOCK_ASSERT_OWNED(txq)	EQ_LOCK_ASSERT_OWNED(&(txq)->eq)
961 #define TXQ_LOCK_ASSERT_NOTOWNED(txq)	EQ_LOCK_ASSERT_NOTOWNED(&(txq)->eq)
962 
963 #define for_each_txq(vi, iter, q) \
964 	for (q = &vi->pi->adapter->sge.txq[vi->first_txq], iter = 0; \
965 	    iter < vi->ntxq; ++iter, ++q)
966 #define for_each_rxq(vi, iter, q) \
967 	for (q = &vi->pi->adapter->sge.rxq[vi->first_rxq], iter = 0; \
968 	    iter < vi->nrxq; ++iter, ++q)
969 #define for_each_ofld_txq(vi, iter, q) \
970 	for (q = &vi->pi->adapter->sge.ofld_txq[vi->first_ofld_txq], iter = 0; \
971 	    iter < vi->nofldtxq; ++iter, ++q)
972 #define for_each_ofld_rxq(vi, iter, q) \
973 	for (q = &vi->pi->adapter->sge.ofld_rxq[vi->first_ofld_rxq], iter = 0; \
974 	    iter < vi->nofldrxq; ++iter, ++q)
975 #define for_each_nm_txq(vi, iter, q) \
976 	for (q = &vi->pi->adapter->sge.nm_txq[vi->first_nm_txq], iter = 0; \
977 	    iter < vi->nnmtxq; ++iter, ++q)
978 #define for_each_nm_rxq(vi, iter, q) \
979 	for (q = &vi->pi->adapter->sge.nm_rxq[vi->first_nm_rxq], iter = 0; \
980 	    iter < vi->nnmrxq; ++iter, ++q)
981 #define for_each_vi(_pi, _iter, _vi) \
982 	for ((_vi) = (_pi)->vi, (_iter) = 0; (_iter) < (_pi)->nvi; \
983 	     ++(_iter), ++(_vi))
984 
985 #define IDXINCR(idx, incr, wrap) do { \
986 	idx = wrap - idx > incr ? idx + incr : incr - (wrap - idx); \
987 } while (0)
988 #define IDXDIFF(head, tail, wrap) \
989 	((head) >= (tail) ? (head) - (tail) : (wrap) - (tail) + (head))
990 
991 /* One for errors, one for firmware events */
992 #define T4_EXTRA_INTR 2
993 
994 /* One for firmware events */
995 #define T4VF_EXTRA_INTR 1
996 
997 static inline int
998 forwarding_intr_to_fwq(struct adapter *sc)
999 {
1000 
1001 	return (sc->intr_count == 1);
1002 }
1003 
1004 static inline uint32_t
1005 t4_read_reg(struct adapter *sc, uint32_t reg)
1006 {
1007 
1008 	return bus_space_read_4(sc->bt, sc->bh, reg);
1009 }
1010 
1011 static inline void
1012 t4_write_reg(struct adapter *sc, uint32_t reg, uint32_t val)
1013 {
1014 
1015 	bus_space_write_4(sc->bt, sc->bh, reg, val);
1016 }
1017 
1018 static inline uint64_t
1019 t4_read_reg64(struct adapter *sc, uint32_t reg)
1020 {
1021 
1022 #ifdef __LP64__
1023 	return bus_space_read_8(sc->bt, sc->bh, reg);
1024 #else
1025 	return (uint64_t)bus_space_read_4(sc->bt, sc->bh, reg) +
1026 	    ((uint64_t)bus_space_read_4(sc->bt, sc->bh, reg + 4) << 32);
1027 
1028 #endif
1029 }
1030 
1031 static inline void
1032 t4_write_reg64(struct adapter *sc, uint32_t reg, uint64_t val)
1033 {
1034 
1035 #ifdef __LP64__
1036 	bus_space_write_8(sc->bt, sc->bh, reg, val);
1037 #else
1038 	bus_space_write_4(sc->bt, sc->bh, reg, val);
1039 	bus_space_write_4(sc->bt, sc->bh, reg + 4, val>> 32);
1040 #endif
1041 }
1042 
1043 static inline void
1044 t4_os_pci_read_cfg1(struct adapter *sc, int reg, uint8_t *val)
1045 {
1046 
1047 	*val = pci_read_config(sc->dev, reg, 1);
1048 }
1049 
1050 static inline void
1051 t4_os_pci_write_cfg1(struct adapter *sc, int reg, uint8_t val)
1052 {
1053 
1054 	pci_write_config(sc->dev, reg, val, 1);
1055 }
1056 
1057 static inline void
1058 t4_os_pci_read_cfg2(struct adapter *sc, int reg, uint16_t *val)
1059 {
1060 
1061 	*val = pci_read_config(sc->dev, reg, 2);
1062 }
1063 
1064 static inline void
1065 t4_os_pci_write_cfg2(struct adapter *sc, int reg, uint16_t val)
1066 {
1067 
1068 	pci_write_config(sc->dev, reg, val, 2);
1069 }
1070 
1071 static inline void
1072 t4_os_pci_read_cfg4(struct adapter *sc, int reg, uint32_t *val)
1073 {
1074 
1075 	*val = pci_read_config(sc->dev, reg, 4);
1076 }
1077 
1078 static inline void
1079 t4_os_pci_write_cfg4(struct adapter *sc, int reg, uint32_t val)
1080 {
1081 
1082 	pci_write_config(sc->dev, reg, val, 4);
1083 }
1084 
1085 static inline struct port_info *
1086 adap2pinfo(struct adapter *sc, int idx)
1087 {
1088 
1089 	return (sc->port[idx]);
1090 }
1091 
1092 static inline void
1093 t4_os_set_hw_addr(struct port_info *pi, uint8_t hw_addr[])
1094 {
1095 
1096 	bcopy(hw_addr, pi->vi[0].hw_addr, ETHER_ADDR_LEN);
1097 }
1098 
1099 static inline int
1100 tx_resume_threshold(struct sge_eq *eq)
1101 {
1102 
1103 	/* not quite the same as qsize / 4, but this will do. */
1104 	return (eq->sidx / 4);
1105 }
1106 
1107 static inline int
1108 t4_use_ldst(struct adapter *sc)
1109 {
1110 
1111 #ifdef notyet
1112 	return (sc->flags & FW_OK || !sc->use_bd);
1113 #else
1114 	return (0);
1115 #endif
1116 }
1117 
1118 static inline void
1119 CH_DUMP_MBOX(struct adapter *sc, int mbox, const int reg,
1120     const char *msg, const __be64 *const p, const bool err)
1121 {
1122 
1123 	if (!(sc->debug_flags & DF_DUMP_MBOX) && !err)
1124 		return;
1125 	if (p != NULL) {
1126 		log(err ? LOG_ERR : LOG_DEBUG,
1127 		    "%s: mbox %u %s %016llx %016llx %016llx %016llx "
1128 		    "%016llx %016llx %016llx %016llx\n",
1129 		    device_get_nameunit(sc->dev), mbox, msg,
1130 		    (long long)be64_to_cpu(p[0]), (long long)be64_to_cpu(p[1]),
1131 		    (long long)be64_to_cpu(p[2]), (long long)be64_to_cpu(p[3]),
1132 		    (long long)be64_to_cpu(p[4]), (long long)be64_to_cpu(p[5]),
1133 		    (long long)be64_to_cpu(p[6]), (long long)be64_to_cpu(p[7]));
1134 	} else {
1135 		log(err ? LOG_ERR : LOG_DEBUG,
1136 		    "%s: mbox %u %s %016llx %016llx %016llx %016llx "
1137 		    "%016llx %016llx %016llx %016llx\n",
1138 		    device_get_nameunit(sc->dev), mbox, msg,
1139 		    (long long)t4_read_reg64(sc, reg),
1140 		    (long long)t4_read_reg64(sc, reg + 8),
1141 		    (long long)t4_read_reg64(sc, reg + 16),
1142 		    (long long)t4_read_reg64(sc, reg + 24),
1143 		    (long long)t4_read_reg64(sc, reg + 32),
1144 		    (long long)t4_read_reg64(sc, reg + 40),
1145 		    (long long)t4_read_reg64(sc, reg + 48),
1146 		    (long long)t4_read_reg64(sc, reg + 56));
1147 	}
1148 }
1149 
1150 /* t4_main.c */
1151 extern int t4_ntxq;
1152 extern int t4_nrxq;
1153 extern int t4_intr_types;
1154 extern int t4_tmr_idx;
1155 extern int t4_pktc_idx;
1156 extern unsigned int t4_qsize_rxq;
1157 extern unsigned int t4_qsize_txq;
1158 extern device_method_t cxgbe_methods[];
1159 
1160 int t4_os_find_pci_capability(struct adapter *, int);
1161 int t4_os_pci_save_state(struct adapter *);
1162 int t4_os_pci_restore_state(struct adapter *);
1163 void t4_os_portmod_changed(struct port_info *);
1164 void t4_os_link_changed(struct port_info *);
1165 void t4_iterate(void (*)(struct adapter *, void *), void *);
1166 void t4_init_devnames(struct adapter *);
1167 void t4_add_adapter(struct adapter *);
1168 int t4_detach_common(device_t);
1169 int t4_map_bars_0_and_4(struct adapter *);
1170 int t4_map_bar_2(struct adapter *);
1171 int t4_setup_intr_handlers(struct adapter *);
1172 void t4_sysctls(struct adapter *);
1173 int begin_synchronized_op(struct adapter *, struct vi_info *, int, char *);
1174 void doom_vi(struct adapter *, struct vi_info *);
1175 void end_synchronized_op(struct adapter *, int);
1176 int update_mac_settings(struct ifnet *, int);
1177 int adapter_full_init(struct adapter *);
1178 int adapter_full_uninit(struct adapter *);
1179 uint64_t cxgbe_get_counter(struct ifnet *, ift_counter);
1180 void cxgbe_snd_tag_init(struct cxgbe_snd_tag *, struct ifnet *, int);
1181 int vi_full_init(struct vi_info *);
1182 int vi_full_uninit(struct vi_info *);
1183 void vi_sysctls(struct vi_info *);
1184 void vi_tick(void *);
1185 int rw_via_memwin(struct adapter *, int, uint32_t, uint32_t *, int, int);
1186 int alloc_atid(struct adapter *, void *);
1187 void *lookup_atid(struct adapter *, int);
1188 void free_atid(struct adapter *, int);
1189 void release_tid(struct adapter *, int, struct sge_wrq *);
1190 int cxgbe_media_change(struct ifnet *);
1191 void cxgbe_media_status(struct ifnet *, struct ifmediareq *);
1192 bool t4_os_dump_cimla(struct adapter *, int, bool);
1193 void t4_os_dump_devlog(struct adapter *);
1194 
1195 #ifdef KERN_TLS
1196 /* t4_kern_tls.c */
1197 int cxgbe_tls_tag_alloc(struct ifnet *, union if_snd_tag_alloc_params *,
1198     struct m_snd_tag **);
1199 void cxgbe_tls_tag_free(struct m_snd_tag *);
1200 void t6_ktls_modload(void);
1201 void t6_ktls_modunload(void);
1202 int t6_ktls_try(struct ifnet *, struct socket *, struct ktls_session *);
1203 int t6_ktls_parse_pkt(struct mbuf *, int *, int *);
1204 int t6_ktls_write_wr(struct sge_txq *, void *, struct mbuf *, u_int, u_int);
1205 #endif
1206 
1207 /* t4_keyctx.c */
1208 struct auth_hash;
1209 union authctx;
1210 
1211 void t4_aes_getdeckey(void *, const void *, unsigned int);
1212 void t4_copy_partial_hash(int, union authctx *, void *);
1213 void t4_init_gmac_hash(const char *, int, char *);
1214 void t4_init_hmac_digest(struct auth_hash *, u_int, char *, int, char *);
1215 
1216 #ifdef DEV_NETMAP
1217 /* t4_netmap.c */
1218 struct sge_nm_rxq;
1219 void cxgbe_nm_attach(struct vi_info *);
1220 void cxgbe_nm_detach(struct vi_info *);
1221 void service_nm_rxq(struct sge_nm_rxq *);
1222 #endif
1223 
1224 /* t4_sge.c */
1225 void t4_sge_modload(void);
1226 void t4_sge_modunload(void);
1227 uint64_t t4_sge_extfree_refs(void);
1228 void t4_tweak_chip_settings(struct adapter *);
1229 int t4_read_chip_settings(struct adapter *);
1230 int t4_create_dma_tag(struct adapter *);
1231 void t4_sge_sysctls(struct adapter *, struct sysctl_ctx_list *,
1232     struct sysctl_oid_list *);
1233 int t4_destroy_dma_tag(struct adapter *);
1234 int t4_setup_adapter_queues(struct adapter *);
1235 int t4_teardown_adapter_queues(struct adapter *);
1236 int t4_setup_vi_queues(struct vi_info *);
1237 int t4_teardown_vi_queues(struct vi_info *);
1238 void t4_intr_all(void *);
1239 void t4_intr(void *);
1240 #ifdef DEV_NETMAP
1241 void t4_nm_intr(void *);
1242 void t4_vi_intr(void *);
1243 #endif
1244 void t4_intr_err(void *);
1245 void t4_intr_evt(void *);
1246 void t4_wrq_tx_locked(struct adapter *, struct sge_wrq *, struct wrqe *);
1247 void t4_update_fl_bufsize(struct ifnet *);
1248 struct mbuf *alloc_wr_mbuf(int, int);
1249 int parse_pkt(struct adapter *, struct mbuf **);
1250 void *start_wrq_wr(struct sge_wrq *, int, struct wrq_cookie *);
1251 void commit_wrq_wr(struct sge_wrq *, void *, struct wrq_cookie *);
1252 int tnl_cong(struct port_info *, int);
1253 void t4_register_an_handler(an_handler_t);
1254 void t4_register_fw_msg_handler(int, fw_msg_handler_t);
1255 void t4_register_cpl_handler(int, cpl_handler_t);
1256 void t4_register_shared_cpl_handler(int, cpl_handler_t, int);
1257 #ifdef RATELIMIT
1258 int ethofld_transmit(struct ifnet *, struct mbuf *);
1259 void send_etid_flush_wr(struct cxgbe_rate_tag *);
1260 #endif
1261 
1262 /* t4_tracer.c */
1263 struct t4_tracer;
1264 void t4_tracer_modload(void);
1265 void t4_tracer_modunload(void);
1266 void t4_tracer_port_detach(struct adapter *);
1267 int t4_get_tracer(struct adapter *, struct t4_tracer *);
1268 int t4_set_tracer(struct adapter *, struct t4_tracer *);
1269 int t4_trace_pkt(struct sge_iq *, const struct rss_header *, struct mbuf *);
1270 int t5_trace_pkt(struct sge_iq *, const struct rss_header *, struct mbuf *);
1271 
1272 /* t4_sched.c */
1273 int t4_set_sched_class(struct adapter *, struct t4_sched_params *);
1274 int t4_set_sched_queue(struct adapter *, struct t4_sched_queue *);
1275 int t4_init_tx_sched(struct adapter *);
1276 int t4_free_tx_sched(struct adapter *);
1277 void t4_update_tx_sched(struct adapter *);
1278 int t4_reserve_cl_rl_kbps(struct adapter *, int, u_int, int *);
1279 void t4_release_cl_rl(struct adapter *, int, int);
1280 int sysctl_tc(SYSCTL_HANDLER_ARGS);
1281 int sysctl_tc_params(SYSCTL_HANDLER_ARGS);
1282 #ifdef RATELIMIT
1283 void t4_init_etid_table(struct adapter *);
1284 void t4_free_etid_table(struct adapter *);
1285 struct cxgbe_rate_tag *lookup_etid(struct adapter *, int);
1286 int cxgbe_rate_tag_alloc(struct ifnet *, union if_snd_tag_alloc_params *,
1287     struct m_snd_tag **);
1288 int cxgbe_rate_tag_modify(struct m_snd_tag *, union if_snd_tag_modify_params *);
1289 int cxgbe_rate_tag_query(struct m_snd_tag *, union if_snd_tag_query_params *);
1290 void cxgbe_rate_tag_free(struct m_snd_tag *);
1291 void cxgbe_rate_tag_free_locked(struct cxgbe_rate_tag *);
1292 void cxgbe_ratelimit_query(struct ifnet *, struct if_ratelimit_query_results *);
1293 #endif
1294 
1295 /* t4_filter.c */
1296 int get_filter_mode(struct adapter *, uint32_t *);
1297 int set_filter_mode(struct adapter *, uint32_t);
1298 int get_filter(struct adapter *, struct t4_filter *);
1299 int set_filter(struct adapter *, struct t4_filter *);
1300 int del_filter(struct adapter *, struct t4_filter *);
1301 int t4_filter_rpl(struct sge_iq *, const struct rss_header *, struct mbuf *);
1302 int t4_hashfilter_ao_rpl(struct sge_iq *, const struct rss_header *, struct mbuf *);
1303 int t4_hashfilter_tcb_rpl(struct sge_iq *, const struct rss_header *, struct mbuf *);
1304 int t4_del_hashfilter_rpl(struct sge_iq *, const struct rss_header *, struct mbuf *);
1305 void free_hftid_hash(struct tid_info *);
1306 
1307 static inline struct wrqe *
1308 alloc_wrqe(int wr_len, struct sge_wrq *wrq)
1309 {
1310 	int len = offsetof(struct wrqe, wr) + wr_len;
1311 	struct wrqe *wr;
1312 
1313 	wr = malloc(len, M_CXGBE, M_NOWAIT);
1314 	if (__predict_false(wr == NULL))
1315 		return (NULL);
1316 	wr->wr_len = wr_len;
1317 	wr->wrq = wrq;
1318 	return (wr);
1319 }
1320 
1321 static inline void *
1322 wrtod(struct wrqe *wr)
1323 {
1324 	return (&wr->wr[0]);
1325 }
1326 
1327 static inline void
1328 free_wrqe(struct wrqe *wr)
1329 {
1330 	free(wr, M_CXGBE);
1331 }
1332 
1333 static inline void
1334 t4_wrq_tx(struct adapter *sc, struct wrqe *wr)
1335 {
1336 	struct sge_wrq *wrq = wr->wrq;
1337 
1338 	TXQ_LOCK(wrq);
1339 	t4_wrq_tx_locked(sc, wrq, wr);
1340 	TXQ_UNLOCK(wrq);
1341 }
1342 
1343 static inline int
1344 read_via_memwin(struct adapter *sc, int idx, uint32_t addr, uint32_t *val,
1345     int len)
1346 {
1347 
1348 	return (rw_via_memwin(sc, idx, addr, val, len, 0));
1349 }
1350 
1351 static inline int
1352 write_via_memwin(struct adapter *sc, int idx, uint32_t addr,
1353     const uint32_t *val, int len)
1354 {
1355 
1356 	return (rw_via_memwin(sc, idx, addr, (void *)(uintptr_t)val, len, 1));
1357 }
1358 #endif
1359