/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _SYS_MAC_SOFT_RING_H #define _SYS_MAC_SOFT_RING_H #ifdef __cplusplus extern "C" { #endif #include #include #include #include #include #include #include #define S_RING_NAMELEN 64 #define MAX_SR_FANOUT 32 extern boolean_t mac_soft_ring_enable; extern boolean_t mac_latency_optimize; typedef struct mac_soft_ring_s mac_soft_ring_t; typedef struct mac_soft_ring_set_s mac_soft_ring_set_t; typedef void (*mac_soft_ring_drain_func_t)(mac_soft_ring_t *); typedef mac_tx_cookie_t (*mac_tx_func_t)(mac_soft_ring_set_t *, mblk_t *, uintptr_t, uint16_t, mblk_t **); /* Tx notify callback */ typedef struct mac_tx_notify_cb_s { mac_cb_t mtnf_link; /* Linked list of callbacks */ mac_tx_notify_t mtnf_fn; /* The callback function */ void *mtnf_arg; /* Callback function argument */ } mac_tx_notify_cb_t; struct mac_soft_ring_s { /* Keep the most used members 64bytes cache aligned */ kmutex_t s_ring_lock; /* lock before using any member */ uint16_t s_ring_type; /* processing model of the sq */ uint16_t s_ring_state; /* state flags and message count */ int s_ring_count; /* # of mblocks in mac_soft_ring */ size_t s_ring_size; /* Size of data queued */ mblk_t *s_ring_first; /* first mblk chain or NULL */ mblk_t *s_ring_last; /* last mblk chain or NULL */ mac_direct_rx_t s_ring_rx_func; void *s_ring_rx_arg1; mac_resource_handle_t s_ring_rx_arg2; /* * Threshold after which packets get dropped. * Is always greater than s_ring_tx_hiwat */ int s_ring_tx_max_q_cnt; /* # of mblocks after which to apply flow control */ int s_ring_tx_hiwat; /* # of mblocks after which to relieve flow control */ int s_ring_tx_lowat; boolean_t s_ring_tx_woken_up; uint32_t s_ring_blocked_cnt; /* times blocked for Tx descs */ uint32_t s_ring_unblocked_cnt; /* unblock calls from driver */ uint32_t s_ring_hiwat_cnt; /* times blocked for Tx descs */ void *s_ring_tx_arg1; void *s_ring_tx_arg2; /* Tx notify callback */ mac_cb_info_t s_ring_notify_cb_info; /* cb list info */ mac_cb_t *s_ring_notify_cb_list; /* The cb list */ clock_t s_ring_awaken; /* time async thread was awakened */ kthread_t *s_ring_run; /* Current thread processing sq */ processorid_t s_ring_cpuid; /* processor to bind to */ processorid_t s_ring_cpuid_save; /* saved cpuid during offline */ kcondvar_t s_ring_async; /* async thread blocks on */ clock_t s_ring_wait; /* lbolts to wait after a fill() */ timeout_id_t s_ring_tid; /* timer id of pending timeout() */ kthread_t *s_ring_worker; /* kernel thread id */ char s_ring_name[S_RING_NAMELEN + 1]; uint32_t s_ring_total_inpkt; uint32_t s_ring_drops; struct mac_client_impl_s *s_ring_mcip; void *s_ring_flent; kstat_t *s_ring_ksp; /* Teardown, poll disable control ops */ kcondvar_t s_ring_client_cv; /* Client wait for control op */ mac_soft_ring_set_t *s_ring_set; /* The SRS this ring belongs to */ mac_soft_ring_t *s_ring_next; mac_soft_ring_t *s_ring_prev; mac_soft_ring_drain_func_t s_ring_drain_func; }; typedef void (*mac_srs_drain_proc_t)(mac_soft_ring_set_t *, uint_t); /* Transmit side Soft Ring Set */ typedef struct mac_srs_tx_s { /* Members for Tx size processing */ uint32_t st_mode; mac_tx_func_t st_func; void *st_arg1; void *st_arg2; mac_group_t *st_group; /* TX group for share */ boolean_t st_woken_up; /* * st_max_q_cnt is the queue depth threshold to limit * outstanding packets on the Tx SRS. Once the limit * is reached, Tx SRS will drop packets until the * limit goes below the threshold. */ uint32_t st_max_q_cnt; /* max. outstanding packets */ /* * st_hiwat is used Tx serializer and bandwidth mode. * This is the queue depth threshold upto which * packets will get buffered with no flow-control * back pressure applied to the caller. Once this * threshold is reached, back pressure will be * applied to the caller of mac_tx() (mac_tx() starts * returning a cookie to indicate a blocked SRS). * st_hiwat should always be lesser than or equal to * st_max_q_cnt. */ uint32_t st_hiwat; /* mblk cnt to apply flow control */ uint32_t st_lowat; /* mblk cnt to relieve flow control */ uint32_t st_drop_count; /* * Number of times the srs gets blocked due to lack of Tx * desc is noted down. Corresponding wakeup from driver * to unblock is also noted down. They should match in a * correctly working setup. If there is less unblocks * than blocks, then Tx side waits forever for a wakeup * from below. The following protected by srs_lock. */ uint32_t st_blocked_cnt; /* times blocked for Tx descs */ uint32_t st_unblocked_cnt; /* unblock calls from driver */ uint32_t st_hiwat_cnt; /* times blocked for Tx descs */ } mac_srs_tx_t; /* Receive side Soft Ring Set */ typedef struct mac_srs_rx_s { /* * Upcall Function for fanout, Rx processing etc. Perhaps * the same 3 members below can be used for Tx * processing, but looking around, mac_rx_func_t has * proliferated too much into various files at different * places. I am leaving the consolidation battle for * another day. */ mac_direct_rx_t sr_func; /* srs_lock */ void *sr_arg1; /* srs_lock */ mac_resource_handle_t sr_arg2; /* srs_lock */ mac_rx_func_t sr_lower_proc; /* Atomically changed */ boolean_t sr_enqueue_always; /* enqueue at soft ring */ uint32_t sr_poll_pkt_cnt; uint32_t sr_poll_thres; /* mblk cnt to apply flow control */ uint32_t sr_hiwat; /* mblk cnt to relieve flow control */ uint32_t sr_lowat; uint32_t sr_poll_count; uint32_t sr_intr_count; uint32_t sr_drop_count; /* Times polling was enabled */ uint32_t sr_poll_on; /* Times polling was enabled by worker thread */ uint32_t sr_worker_poll_on; /* Times polling was disabled */ uint32_t sr_poll_off; /* Poll thread signalled count */ uint32_t sr_poll_thr_sig; /* Poll thread busy */ uint32_t sr_poll_thr_busy; /* SRS drains, stays in poll mode but doesn't poll */ uint32_t sr_poll_drain_no_poll; /* * SRS has nothing to do and no packets in H/W but * there is a backlog in softrings. SRS stays in * poll mode but doesn't do polling. */ uint32_t sr_poll_no_poll; /* Active polling restarted */ uint32_t sr_below_hiwat; /* Found packets in last poll so try and poll again */ uint32_t sr_poll_again; /* * Packets in queue but poll thread not allowed to process so * signal the worker thread. */ uint32_t sr_poll_sig_worker; /* * Poll thread has nothing to do and H/W has nothing so * reenable the interrupts. */ uint32_t sr_poll_intr_enable; /* * Poll thread has nothing to do and worker thread was already * running so it can decide to reenable interrupt or poll again. */ uint32_t sr_poll_goto_sleep; /* Worker thread goes back to draining the queue */ uint32_t sr_drain_again; /* More Packets in queue so signal the worker thread to drain */ uint32_t sr_drain_worker_sig; /* Poll thread is already running so worker has nothing to do */ uint32_t sr_drain_poll_running; /* We have packets already queued so keep polling */ uint32_t sr_drain_keep_polling; /* Drain is done and interrupts are reenabled */ uint32_t sr_drain_finish_intr; /* Polling thread needs to schedule worker wakeup */ uint32_t sr_poll_worker_wakeup; /* Chains less than 10 pkts */ uint32_t sr_chain_cnt_undr10; /* Chains between 10 & 50 pkts */ uint32_t sr_chain_cnt_10to50; /* Chains over 50 pkts */ uint32_t sr_chain_cnt_over50; } mac_srs_rx_t; /* * mac_soft_ring_set_s: * This is used both for Tx and Rx side. The srs_type identifies Rx or * Tx type. * * Note that the structure is carefully crafted, with Rx elements coming * first followed by Tx specific members. Future additions to this * structure should follow the same guidelines. * * Rx-side notes: * mac_rx_classify_flow_add() always creates a mac_soft_ring_set_t and fn_flow * points to info from it (func = srs_lower_proc, arg = soft_ring_set). On * interrupt path, srs_lower_proc does B/W adjustment and switch to polling mode * (if poll capable) and feeds the packets to soft_ring_list via choosen * fanout type (specified by srs_type). In poll mode, the poll thread which is * also a pointer can pick up the packets and feed them to various * soft_ring_list. * * The srs_type can either be protocol based or fanout based where fanout itelf * can be various types * * The polling works by turning off interrupts as soon as a packets * are queued on the soft ring set. Once the backlog is clear and poll * thread return empty handed i.e. Rx ring doesn't have anything, the * interrupt is turned back on. For this purpose we keep a separate * srs_poll_pkt_cnt counter which tracks the packets queued between SRS * and the soft rings as well. The counter is incremented when packets * are queued and decremented when SRS processes them (in case it has * no soft rings) or the soft ring process them. Its important that * in case SRS has softrings, the decrement doesn't happen till the * packet is processed by the soft rings since it takes very little time * for SRS to queue packet from SRS to soft rings and it will keep * bringing more packets in the system faster than soft rings can * process them. * * Tx side notes: * The srs structure acts as a serializer with a worker thread. The * default behavior of srs though is to act as a pass-thru. The queues * (srs_first, srs_last, srs_count) get used when Tx ring runs out of Tx * descriptors or to enforce bandwidth limits. * * When multiple Tx rings are present, the SRS state will be set to * SRS_FANOUT_OTH. Outgoing packets coming into mac_tx_srs_process() * function will be fanned out to one of the Tx side soft rings based on * a hint passed in mac_tx_srs_process(). Each soft ring, in turn, will * be associated with a distinct h/w Tx ring. */ struct mac_soft_ring_set_s { /* * Common elements, common to both Rx and Tx SRS type. * The following block of fields are protected by srs_lock */ kmutex_t srs_lock; uint32_t srs_type; uint32_t srs_state; /* state flags */ uint32_t srs_count; mblk_t *srs_first; /* first mblk chain or NULL */ mblk_t *srs_last; /* last mblk chain or NULL */ kcondvar_t srs_async; /* cv for worker thread */ kcondvar_t srs_cv; /* cv for poll thread */ kcondvar_t srs_quiesce_done_cv; /* cv for removal */ timeout_id_t srs_tid; /* timeout id for pending timeout */ /* * List of soft rings & processing function. * The following block is protected by Rx quiescence. * i.e. they can be changed only after quiescing the SRS * Protected by srs_lock. */ mac_soft_ring_t *srs_soft_ring_head; mac_soft_ring_t *srs_soft_ring_tail; int srs_soft_ring_count; int srs_soft_ring_quiesced_count; int srs_soft_ring_condemned_count; mac_soft_ring_t **srs_tcp_soft_rings; int srs_tcp_ring_count; mac_soft_ring_t **srs_udp_soft_rings; int srs_udp_ring_count; /* * srs_oth_soft_rings is also used by tx_srs in * when operating in multi tx ring mode. */ mac_soft_ring_t **srs_oth_soft_rings; int srs_oth_ring_count; /* * Bandwidth control related members. * They are common to both Rx- and Tx-side. * Following protected by srs_lock */ mac_bw_ctl_t *srs_bw; size_t srs_size; /* Size of packets queued in bytes */ pri_t srs_pri; mac_soft_ring_set_t *srs_next; /* mac_srs_g_lock */ mac_soft_ring_set_t *srs_prev; /* mac_srs_g_lock */ /* Attribute specific drain func (BW ctl vs non-BW ctl) */ mac_srs_drain_proc_t srs_drain_func; /* Write once (WO) */ /* * If the associated ring is exclusively used by a mac client, e.g., * an aggregation, this fields is used to keep a reference to the * MAC client's pseudo ring. */ mac_resource_handle_t srs_mrh; /* * The following blocks are write once (WO) and valid for the life * of the SRS */ struct mac_client_impl_s *srs_mcip; /* back ptr to mac client */ void *srs_flent; /* back ptr to flent */ mac_ring_t *srs_ring; /* Ring Descriptor */ /* Teardown, disable control ops */ kcondvar_t srs_client_cv; /* Client wait for the control op */ kthread_t *srs_worker; /* WO, worker thread */ kthread_t *srs_poll_thr; /* WO, poll thread */ uint_t srs_ind; /* Round Robin indx for picking up SR */ processorid_t srs_worker_cpuid; /* processor to bind to */ processorid_t srs_worker_cpuid_save; /* saved cpuid during offline */ processorid_t srs_poll_cpuid; /* processor to bind to */ processorid_t srs_poll_cpuid_save; /* saved cpuid during offline */ uint_t srs_fanout_state; mac_cpus_t srs_cpu; mac_srs_rx_t srs_rx; mac_srs_tx_t srs_tx; }; /* * type flags - combination allowed to process and drain the queue */ #define ST_RING_WORKER_ONLY 0x0001 /* Worker thread only */ #define ST_RING_ANY 0x0002 /* Any thread can process the queue */ #define ST_RING_TCP 0x0004 #define ST_RING_UDP 0x0008 #define ST_RING_OTH 0x0010 #define ST_RING_BW_CTL 0x0020 #define ST_RING_TX 0x0040 /* * State flags. */ #define S_RING_PROC 0x0001 /* being processed */ #define S_RING_BOUND 0x0002 /* Worker thread is bound to a cpu */ #define S_RING_BLOCK 0x0004 /* No Tx descs */ #define S_RING_TX_HIWAT 0x0008 /* Tx high watermark reached */ #define S_RING_WAKEUP_CLIENT 0x0010 /* flow ctrl, client wakeup needed */ #define S_RING_BLANK 0x0020 /* Has been put into polling mode */ #define S_RING_CLIENT_WAIT 0x0040 /* Client waiting for control op */ #define S_RING_CONDEMNED 0x0100 /* Being torn down */ #define S_RING_CONDEMNED_DONE 0x0200 /* Being torn down */ #define S_RING_QUIESCE 0x0400 /* No traffic flow, transient flag */ #define S_RING_QUIESCE_DONE 0x0800 /* No traffic flow, transient flag */ #define S_RING_RESTART 0x1000 /* Go back to normal traffic flow */ #define S_RING_ENQUEUED 0x2000 /* Pkts enqueued in Tx soft ring */ /* * arguments for processors to bind to */ #define S_RING_BIND_NONE -1 /* * defines for srs_type - identifies a link or a sub-flow * and other static characteristics of a SRS like a tx * srs, tcp only srs, etc. */ #define SRST_LINK 0x00000001 #define SRST_FLOW 0x00000002 #define SRST_NO_SOFT_RINGS 0x00000004 #define SRST_TCP_ONLY 0x00000008 #define SRST_FANOUT_PROTO 0x00000010 #define SRST_FANOUT_SRC_IP 0x00000020 #define SRST_FANOUT_OTH 0x00000040 #define SRST_DEFAULT_GRP 0x00000080 #define SRST_TX 0x00000100 #define SRST_BW_CONTROL 0x00000200 #define SRST_DIRECT_POLL 0x00000400 #define SRST_DLS_BYPASS 0x00001000 #define SRST_CLIENT_POLL_ENABLED 0x00002000 /* * soft ring set flags. These bits are dynamic in nature and get * applied to srs_state. They reflect the state of SRS at any * point of time */ #define SRS_BLANK 0x00000001 #define SRS_WORKER_BOUND 0x00000002 #define SRS_POLL_BOUND 0x00000004 #define SRS_POLLING_CAPAB 0x00000008 #define SRS_PROC 0x00000010 #define SRS_GET_PKTS 0x00000020 #define SRS_POLLING 0x00000040 #define SRS_BW_ENFORCED 0x00000080 #define SRS_WORKER 0x00000100 #define SRS_ENQUEUED 0x00000200 #define SRS_ANY_PROCESS 0x00000400 #define SRS_PROC_FAST 0x00000800 #define SRS_POLL_PROC 0x00001000 #define SRS_TX_BLOCKED 0x00002000 /* out of Tx descs */ #define SRS_TX_HIWAT 0x00004000 /* Tx count exceeds hiwat */ #define SRS_TX_WAKEUP_CLIENT 0x00008000 /* Flow-ctl: wakeup client */ #define SRS_CLIENT_PROC 0x00010000 #define SRS_CLIENT_WAIT 0x00020000 #define SRS_QUIESCE 0x00040000 #define SRS_QUIESCE_DONE 0x00080000 #define SRS_CONDEMNED 0x00100000 #define SRS_CONDEMNED_DONE 0x00200000 #define SRS_POLL_THR_QUIESCED 0x00400000 #define SRS_RESTART 0x00800000 #define SRS_RESTART_DONE 0x01000000 #define SRS_POLL_THR_RESTART 0x02000000 #define SRS_IN_GLIST 0x04000000 #define SRS_POLL_THR_EXITED 0x08000000 #define SRS_QUIESCE_PERM 0x10000000 #define SRS_LATENCY_OPT 0x20000000 #define SRS_QUIESCED(srs) (srs->srs_state & SRS_QUIESCE_DONE) /* * If the SRS_QUIESCE_PERM flag is set, the SRS worker thread will not be * able to be restarted. */ #define SRS_QUIESCED_PERMANENT(srs) (srs->srs_state & SRS_QUIESCE_PERM) /* * soft ring set (SRS) Tx modes */ typedef enum { SRS_TX_DEFAULT = 0, SRS_TX_SERIALIZE, SRS_TX_FANOUT, SRS_TX_BW, SRS_TX_BW_FANOUT } mac_tx_srs_mode_t; /* * SRS fanout states */ typedef enum { SRS_FANOUT_UNINIT = 0, SRS_FANOUT_INIT, SRS_FANOUT_REINIT } mac_srs_fanout_state_t; /* * Structure for dls statistics */ struct dls_kstats { kstat_named_t dlss_soft_ring_pkt_drop; }; extern struct dls_kstats dls_kstat; #define DLS_BUMP_STAT(x, y) (dls_kstat.x.value.ui32 += y) /* Turn dynamic polling off */ #define MAC_SRS_POLLING_OFF(mac_srs) { \ ASSERT(MUTEX_HELD(&(mac_srs)->srs_lock)); \ if (((mac_srs)->srs_state & (SRS_POLLING_CAPAB|SRS_POLLING)) == \ (SRS_POLLING_CAPAB|SRS_POLLING)) { \ (mac_srs)->srs_state &= ~SRS_POLLING; \ (void) mac_hwring_enable_intr((mac_ring_handle_t) \ (mac_srs)->srs_ring); \ (mac_srs)->srs_rx.sr_poll_off++; \ } \ } #define MAC_COUNT_CHAIN(mac_srs, head, tail, cnt, sz) { \ mblk_t *tmp; \ boolean_t bw_ctl = B_FALSE; \ \ ASSERT((head) != NULL); \ cnt = 0; \ sz = 0; \ if ((mac_srs)->srs_type & SRST_BW_CONTROL) \ bw_ctl = B_TRUE; \ tmp = tail = (head); \ if ((head)->b_next == NULL) { \ cnt = 1; \ if (bw_ctl) \ sz += msgdsize(head); \ } else { \ while (tmp != NULL) { \ tail = tmp; \ cnt++; \ if (bw_ctl) \ sz += msgdsize(tmp); \ tmp = tmp->b_next; \ } \ } \ } /* * Decrement the cumulative packet count in SRS and its * soft rings. If the srs_poll_pkt_cnt goes below lowat, then check * if if the interface was left in a polling mode and no one * is really processing the queue (to get the interface out * of poll mode). If no one is processing the queue, then * acquire the PROC and signal the poll thread to check the * interface for packets and get the interface back to interrupt * mode if nothing is found. */ #define MAC_UPDATE_SRS_COUNT_LOCKED(mac_srs, cnt) { \ mac_srs_rx_t *srs_rx = &(mac_srs)->srs_rx; \ ASSERT(MUTEX_HELD(&(mac_srs)->srs_lock)); \ \ srs_rx->sr_poll_pkt_cnt -= cnt; \ if ((srs_rx->sr_poll_pkt_cnt <= srs_rx->sr_poll_thres) && \ (((mac_srs)->srs_state & \ (SRS_POLLING|SRS_PROC|SRS_GET_PKTS)) == SRS_POLLING)) \ { \ (mac_srs)->srs_state |= (SRS_PROC|SRS_GET_PKTS); \ cv_signal(&(mac_srs)->srs_cv); \ srs_rx->sr_below_hiwat++; \ } \ } /* * The following two macros are used to update the inbound packet and byte. * count. The packet and byte count reflect the packets and bytes that are * taken out of the SRS's queue, i.e. indicating they are being delivered. * The srs_count and srs_size are updated in different locations as the * srs_size is also used to take into account any bandwidth limits. The * srs_size is updated only when a soft ring, if any, sends a packet up, * as opposed to updating it when the SRS sends a packet to the SR, i.e. * the srs_size reflects the packets in the SRS and SRs. These * macros decrement the srs_size and srs_count and also increment the * ipackets and ibytes stats resp. * * xxx-venu These are done under srs_lock, for now we still update * mci_stat_ibytes/mci_stat_ipackets atomically, need to check if * just updating them would be accurate enough. * * If we are updating these for a sub-flow SRS, then we need to also * updated it's MAC client bandwidth info, if the MAC client is also * bandwidth regulated. */ #define MAC_UPDATE_SRS_SIZE_LOCKED(srs, sz) { \ if ((srs)->srs_type & SRST_BW_CONTROL) { \ mutex_enter(&(srs)->srs_bw->mac_bw_lock); \ (srs)->srs_bw->mac_bw_sz -= (sz); \ (srs)->srs_bw->mac_bw_used += (sz); \ mutex_exit(&(srs)->srs_bw->mac_bw_lock); \ } \ } #define MAC_TX_UPDATE_BW_INFO(srs, sz) { \ (srs)->srs_bw->mac_bw_sz -= (sz); \ (srs)->srs_bw->mac_bw_used += (sz); \ } #define TX_MULTI_RING_MODE(mac_srs) \ ((mac_srs)->srs_tx.st_mode == SRS_TX_FANOUT || \ (mac_srs)->srs_tx.st_mode == SRS_TX_BW_FANOUT) /* Soft ring flags for teardown */ #define SRS_POLL_THR_OWNER (SRS_PROC | SRS_POLLING | SRS_GET_PKTS) #define SRS_PAUSE (SRS_CONDEMNED | SRS_QUIESCE) #define S_RING_PAUSE (S_RING_CONDEMNED | S_RING_QUIESCE) /* Soft rings */ extern void mac_soft_ring_init(void); extern void mac_soft_ring_finish(void); extern void mac_fanout_setup(mac_client_impl_t *, flow_entry_t *, mac_resource_props_t *, mac_direct_rx_t, void *, mac_resource_handle_t); extern void mac_soft_ring_worker_wakeup(mac_soft_ring_t *); extern void mac_soft_ring_blank(void *, time_t, uint_t, int); extern mblk_t *mac_soft_ring_poll(mac_soft_ring_t *, int); extern void mac_soft_ring_destroy(mac_soft_ring_t *); extern void mac_soft_ring_dls_bypass(void *, mac_direct_rx_t, void *); /* Rx SRS */ extern mac_soft_ring_set_t *mac_srs_create(struct mac_client_impl_s *, flow_entry_t *, uint32_t, mac_direct_rx_t, void *, mac_resource_handle_t, mac_ring_t *); extern void mac_srs_free(mac_soft_ring_set_t *); extern void mac_srs_signal(mac_soft_ring_set_t *, uint_t); extern cpu_t *mac_srs_bind(mac_soft_ring_set_t *, processorid_t); extern void mac_srs_change_upcall(void *, mac_direct_rx_t, void *); extern void mac_srs_quiesce_initiate(mac_soft_ring_set_t *); extern void mac_srs_client_poll_enable(struct mac_client_impl_s *, mac_soft_ring_set_t *); extern void mac_srs_client_poll_disable(struct mac_client_impl_s *, mac_soft_ring_set_t *); extern void mac_srs_client_poll_quiesce(struct mac_client_impl_s *, mac_soft_ring_set_t *); extern void mac_srs_client_poll_restart(struct mac_client_impl_s *, mac_soft_ring_set_t *); extern void mac_rx_srs_quiesce(mac_soft_ring_set_t *, uint_t); extern void mac_rx_srs_restart(mac_soft_ring_set_t *); extern void mac_rx_srs_subflow_process(void *, mac_resource_handle_t, mblk_t *, boolean_t); extern void mac_tx_srs_quiesce(mac_soft_ring_set_t *, uint_t); /* Tx SRS, Tx softring */ extern void mac_tx_srs_wakeup(mac_soft_ring_set_t *, mac_ring_handle_t); extern void mac_tx_srs_setup(struct mac_client_impl_s *, flow_entry_t *, uint32_t); extern mac_tx_func_t mac_tx_get_func(uint32_t); extern mblk_t *mac_tx_send(mac_client_handle_t, mac_ring_handle_t, mblk_t *, mac_tx_stats_t *); extern boolean_t mac_tx_srs_ring_present(mac_soft_ring_set_t *, mac_ring_t *); extern void mac_tx_srs_add_ring(mac_soft_ring_set_t *, mac_ring_t *); extern void mac_tx_srs_del_ring(mac_soft_ring_set_t *, mac_ring_t *); extern mac_tx_cookie_t mac_tx_srs_no_desc(mac_soft_ring_set_t *, mblk_t *, uint16_t, mblk_t **); /* Subflow specific stuff */ extern int mac_srs_flow_create(struct mac_client_impl_s *, flow_entry_t *, mac_resource_props_t *, int, int, mac_direct_rx_t); extern void mac_srs_update_bwlimit(flow_entry_t *, mac_resource_props_t *); extern void mac_srs_adjust_subflow_bwlimit(struct mac_client_impl_s *); extern void mac_srs_update_drv(struct mac_client_impl_s *); extern void mac_update_srs_priority(mac_soft_ring_set_t *, pri_t); extern void mac_client_update_classifier(mac_client_impl_t *, boolean_t); extern void mac_soft_ring_intr_enable(void *); extern void mac_soft_ring_intr_disable(void *); extern mac_soft_ring_t *mac_soft_ring_create(int, clock_t, void *, uint16_t, pri_t, mac_client_impl_t *, mac_soft_ring_set_t *, processorid_t, mac_direct_rx_t, void *, mac_resource_handle_t); extern cpu_t *mac_soft_ring_bind(mac_soft_ring_t *, processorid_t); extern void mac_soft_ring_unbind(mac_soft_ring_t *); extern void mac_soft_ring_free(mac_soft_ring_t *, boolean_t); extern void mac_soft_ring_signal(mac_soft_ring_t *, uint_t); extern void mac_rx_soft_ring_process(mac_client_impl_t *, mac_soft_ring_t *, mblk_t *, mblk_t *, int, size_t); extern mac_tx_cookie_t mac_tx_soft_ring_process(mac_soft_ring_t *, mblk_t *, uint16_t, mblk_t **); extern void mac_srs_worker_quiesce(mac_soft_ring_set_t *); extern void mac_srs_worker_restart(mac_soft_ring_set_t *); extern void mac_rx_attach_flow_srs(mac_impl_t *, flow_entry_t *, mac_soft_ring_set_t *, mac_ring_t *, mac_classify_type_t); extern void mac_rx_srs_drain_bw(mac_soft_ring_set_t *, uint_t); extern void mac_rx_srs_drain(mac_soft_ring_set_t *, uint_t); extern void mac_rx_srs_process(void *, mac_resource_handle_t, mblk_t *, boolean_t); extern void mac_srs_worker(mac_soft_ring_set_t *); extern void mac_rx_srs_poll_ring(mac_soft_ring_set_t *); extern void mac_tx_srs_drain(mac_soft_ring_set_t *, uint_t); extern void mac_tx_srs_restart(mac_soft_ring_set_t *); extern void mac_rx_srs_remove(mac_soft_ring_set_t *); #ifdef __cplusplus } #endif #endif /* _SYS_MAC_SOFT_RING_H */