1 /* QLogic qed NIC Driver
2 * Copyright (c) 2015 QLogic Corporation
4 * This software is available under the terms of the GNU General Public License
5 * (GPL) Version 2, available from the file COPYING in the main directory of
9 #include <linux/types.h>
10 #include <asm/byteorder.h>
12 #include <linux/delay.h>
13 #include <linux/dma-mapping.h>
14 #include <linux/errno.h>
15 #include <linux/kernel.h>
16 #include <linux/list.h>
17 #include <linux/pci.h>
18 #include <linux/slab.h>
19 #include <linux/spinlock.h>
20 #include <linux/string.h>
23 #include "qed_dev_api.h"
28 #include "qed_reg_addr.h"
30 #include "qed_sriov.h"
32 /***************************************************************************
33 * Structures & Definitions
34 ***************************************************************************/
36 #define SPQ_HIGH_PRI_RESERVE_DEFAULT (1)
37 #define SPQ_BLOCK_SLEEP_LENGTH (1000)
39 /***************************************************************************
40 * Blocking Imp. (BLOCK/EBLOCK mode)
41 ***************************************************************************/
42 static void qed_spq_blocking_cb(struct qed_hwfn *p_hwfn,
44 union event_ring_data *data,
47 struct qed_spq_comp_done *comp_done;
49 comp_done = (struct qed_spq_comp_done *)cookie;
51 comp_done->done = 0x1;
52 comp_done->fw_return_code = fw_return_code;
54 /* make update visible to waiting thread */
58 static int qed_spq_block(struct qed_hwfn *p_hwfn,
59 struct qed_spq_entry *p_ent,
62 int sleep_count = SPQ_BLOCK_SLEEP_LENGTH;
63 struct qed_spq_comp_done *comp_done;
66 comp_done = (struct qed_spq_comp_done *)p_ent->comp_cb.cookie;
68 /* validate we receive completion update */
70 if (comp_done->done == 1) {
72 *p_fw_ret = comp_done->fw_return_code;
75 usleep_range(5000, 10000);
79 DP_INFO(p_hwfn, "Ramrod is stuck, requesting MCP drain\n");
80 rc = qed_mcp_drain(p_hwfn, p_hwfn->p_main_ptt);
82 DP_NOTICE(p_hwfn, "MCP drain failed\n");
84 /* Retry after drain */
85 sleep_count = SPQ_BLOCK_SLEEP_LENGTH;
87 /* validate we receive completion update */
89 if (comp_done->done == 1) {
91 *p_fw_ret = comp_done->fw_return_code;
94 usleep_range(5000, 10000);
98 if (comp_done->done == 1) {
100 *p_fw_ret = comp_done->fw_return_code;
104 DP_NOTICE(p_hwfn, "Ramrod is stuck, MCP drain failed\n");
109 /***************************************************************************
110 * SPQ entries inner API
111 ***************************************************************************/
113 qed_spq_fill_entry(struct qed_hwfn *p_hwfn,
114 struct qed_spq_entry *p_ent)
118 switch (p_ent->comp_mode) {
119 case QED_SPQ_MODE_EBLOCK:
120 case QED_SPQ_MODE_BLOCK:
121 p_ent->comp_cb.function = qed_spq_blocking_cb;
123 case QED_SPQ_MODE_CB:
126 DP_NOTICE(p_hwfn, "Unknown SPQE completion mode %d\n",
131 DP_VERBOSE(p_hwfn, QED_MSG_SPQ,
132 "Ramrod header: [CID 0x%08x CMD 0x%02x protocol 0x%02x] Data pointer: [%08x:%08x] Completion Mode: %s\n",
134 p_ent->elem.hdr.cmd_id,
135 p_ent->elem.hdr.protocol_id,
136 p_ent->elem.data_ptr.hi,
137 p_ent->elem.data_ptr.lo,
138 D_TRINE(p_ent->comp_mode, QED_SPQ_MODE_EBLOCK,
139 QED_SPQ_MODE_BLOCK, "MODE_EBLOCK", "MODE_BLOCK",
145 /***************************************************************************
147 ***************************************************************************/
148 static void qed_spq_hw_initialize(struct qed_hwfn *p_hwfn,
149 struct qed_spq *p_spq)
152 struct qed_cxt_info cxt_info;
153 struct core_conn_context *p_cxt;
154 union qed_qm_pq_params pq_params;
157 cxt_info.iid = p_spq->cid;
159 rc = qed_cxt_get_cid_info(p_hwfn, &cxt_info);
162 DP_NOTICE(p_hwfn, "Cannot find context info for cid=%d\n",
167 p_cxt = cxt_info.p_cxt;
169 SET_FIELD(p_cxt->xstorm_ag_context.flags10,
170 XSTORM_CORE_CONN_AG_CTX_DQ_CF_EN, 1);
171 SET_FIELD(p_cxt->xstorm_ag_context.flags1,
172 XSTORM_CORE_CONN_AG_CTX_DQ_CF_ACTIVE, 1);
173 SET_FIELD(p_cxt->xstorm_ag_context.flags9,
174 XSTORM_CORE_CONN_AG_CTX_CONSOLID_PROD_CF_EN, 1);
176 /* QM physical queue */
177 memset(&pq_params, 0, sizeof(pq_params));
178 pq_params.core.tc = LB_TC;
179 pq = qed_get_qm_pq(p_hwfn, PROTOCOLID_CORE, &pq_params);
180 p_cxt->xstorm_ag_context.physical_q0 = cpu_to_le16(pq);
182 p_cxt->xstorm_st_context.spq_base_lo =
183 DMA_LO_LE(p_spq->chain.p_phys_addr);
184 p_cxt->xstorm_st_context.spq_base_hi =
185 DMA_HI_LE(p_spq->chain.p_phys_addr);
187 DMA_REGPAIR_LE(p_cxt->xstorm_st_context.consolid_base_addr,
188 p_hwfn->p_consq->chain.p_phys_addr);
191 static int qed_spq_hw_post(struct qed_hwfn *p_hwfn,
192 struct qed_spq *p_spq,
193 struct qed_spq_entry *p_ent)
195 struct qed_chain *p_chain = &p_hwfn->p_spq->chain;
196 u16 echo = qed_chain_get_prod_idx(p_chain);
197 struct slow_path_element *elem;
198 struct core_db_data db;
200 p_ent->elem.hdr.echo = cpu_to_le16(echo);
201 elem = qed_chain_produce(p_chain);
203 DP_NOTICE(p_hwfn, "Failed to produce from SPQ chain\n");
207 *elem = p_ent->elem; /* struct assignment */
209 /* send a doorbell on the slow hwfn session */
210 memset(&db, 0, sizeof(db));
211 SET_FIELD(db.params, CORE_DB_DATA_DEST, DB_DEST_XCM);
212 SET_FIELD(db.params, CORE_DB_DATA_AGG_CMD, DB_AGG_CMD_SET);
213 SET_FIELD(db.params, CORE_DB_DATA_AGG_VAL_SEL,
214 DQ_XCM_CORE_SPQ_PROD_CMD);
215 db.agg_flags = DQ_XCM_CORE_DQ_CF_CMD;
216 db.spq_prod = cpu_to_le16(qed_chain_get_prod_idx(p_chain));
218 /* make sure the SPQE is updated before the doorbell */
221 DOORBELL(p_hwfn, qed_db_addr(p_spq->cid, DQ_DEMS_LEGACY), *(u32 *)&db);
223 /* make sure doorbell is rang */
226 DP_VERBOSE(p_hwfn, QED_MSG_SPQ,
227 "Doorbelled [0x%08x, CID 0x%08x] with Flags: %02x agg_params: %02x, prod: %04x\n",
228 qed_db_addr(p_spq->cid, DQ_DEMS_LEGACY),
229 p_spq->cid, db.params, db.agg_flags,
230 qed_chain_get_prod_idx(p_chain));
235 /***************************************************************************
236 * Asynchronous events
237 ***************************************************************************/
239 qed_async_event_completion(struct qed_hwfn *p_hwfn,
240 struct event_ring_entry *p_eqe)
242 switch (p_eqe->protocol_id) {
243 case PROTOCOLID_COMMON:
244 return qed_sriov_eqe_event(p_hwfn,
246 p_eqe->echo, &p_eqe->data);
249 "Unknown Async completion for protocol: %d\n",
255 /***************************************************************************
257 ***************************************************************************/
258 void qed_eq_prod_update(struct qed_hwfn *p_hwfn,
261 u32 addr = GTT_BAR0_MAP_REG_USDM_RAM +
262 USTORM_EQE_CONS_OFFSET(p_hwfn->rel_pf_id);
264 REG_WR16(p_hwfn, addr, prod);
266 /* keep prod updates ordered */
270 int qed_eq_completion(struct qed_hwfn *p_hwfn,
274 struct qed_eq *p_eq = cookie;
275 struct qed_chain *p_chain = &p_eq->chain;
278 /* take a snapshot of the FW consumer */
279 u16 fw_cons_idx = le16_to_cpu(*p_eq->p_fw_cons);
281 DP_VERBOSE(p_hwfn, QED_MSG_SPQ, "fw_cons_idx %x\n", fw_cons_idx);
283 /* Need to guarantee the fw_cons index we use points to a usuable
284 * element (to comply with our chain), so our macros would comply
286 if ((fw_cons_idx & qed_chain_get_usable_per_page(p_chain)) ==
287 qed_chain_get_usable_per_page(p_chain))
288 fw_cons_idx += qed_chain_get_unusable_per_page(p_chain);
290 /* Complete current segment of eq entries */
291 while (fw_cons_idx != qed_chain_get_cons_idx(p_chain)) {
292 struct event_ring_entry *p_eqe = qed_chain_consume(p_chain);
299 DP_VERBOSE(p_hwfn, QED_MSG_SPQ,
300 "op %x prot %x res0 %x echo %x fwret %x flags %x\n",
304 le16_to_cpu(p_eqe->echo),
305 p_eqe->fw_return_code,
308 if (GET_FIELD(p_eqe->flags, EVENT_RING_ENTRY_ASYNC)) {
309 if (qed_async_event_completion(p_hwfn, p_eqe))
311 } else if (qed_spq_completion(p_hwfn,
313 p_eqe->fw_return_code,
318 qed_chain_recycle_consumed(p_chain);
321 qed_eq_prod_update(p_hwfn, qed_chain_get_prod_idx(p_chain));
326 struct qed_eq *qed_eq_alloc(struct qed_hwfn *p_hwfn,
331 /* Allocate EQ struct */
332 p_eq = kzalloc(sizeof(*p_eq), GFP_KERNEL);
334 DP_NOTICE(p_hwfn, "Failed to allocate `struct qed_eq'\n");
338 /* Allocate and initialize EQ chain*/
339 if (qed_chain_alloc(p_hwfn->cdev,
340 QED_CHAIN_USE_TO_PRODUCE,
342 QED_CHAIN_CNT_TYPE_U16,
344 sizeof(union event_ring_element),
346 DP_NOTICE(p_hwfn, "Failed to allocate eq chain\n");
347 goto eq_allocate_fail;
350 /* register EQ completion on the SP SB */
351 qed_int_register_cb(p_hwfn,
360 qed_eq_free(p_hwfn, p_eq);
364 void qed_eq_setup(struct qed_hwfn *p_hwfn,
367 qed_chain_reset(&p_eq->chain);
370 void qed_eq_free(struct qed_hwfn *p_hwfn,
375 qed_chain_free(p_hwfn->cdev, &p_eq->chain);
379 /***************************************************************************
380 * CQE API - manipulate EQ functionality
381 ***************************************************************************/
382 static int qed_cqe_completion(
383 struct qed_hwfn *p_hwfn,
384 struct eth_slow_path_rx_cqe *cqe,
385 enum protocol_type protocol)
387 if (IS_VF(p_hwfn->cdev))
390 /* @@@tmp - it's possible we'll eventually want to handle some
391 * actual commands that can arrive here, but for now this is only
392 * used to complete the ramrod using the echo value on the cqe
394 return qed_spq_completion(p_hwfn, cqe->echo, 0, NULL);
397 int qed_eth_cqe_completion(struct qed_hwfn *p_hwfn,
398 struct eth_slow_path_rx_cqe *cqe)
402 rc = qed_cqe_completion(p_hwfn, cqe, PROTOCOLID_ETH);
405 "Failed to handle RXQ CQE [cmd 0x%02x]\n",
411 /***************************************************************************
412 * Slow hwfn Queue (spq)
413 ***************************************************************************/
414 void qed_spq_setup(struct qed_hwfn *p_hwfn)
416 struct qed_spq *p_spq = p_hwfn->p_spq;
417 struct qed_spq_entry *p_virt = NULL;
418 dma_addr_t p_phys = 0;
421 INIT_LIST_HEAD(&p_spq->pending);
422 INIT_LIST_HEAD(&p_spq->completion_pending);
423 INIT_LIST_HEAD(&p_spq->free_pool);
424 INIT_LIST_HEAD(&p_spq->unlimited_pending);
425 spin_lock_init(&p_spq->lock);
428 p_phys = p_spq->p_phys + offsetof(struct qed_spq_entry, ramrod);
429 p_virt = p_spq->p_virt;
431 capacity = qed_chain_get_capacity(&p_spq->chain);
432 for (i = 0; i < capacity; i++) {
433 DMA_REGPAIR_LE(p_virt->elem.data_ptr, p_phys);
435 list_add_tail(&p_virt->list, &p_spq->free_pool);
438 p_phys += sizeof(struct qed_spq_entry);
442 p_spq->normal_count = 0;
443 p_spq->comp_count = 0;
444 p_spq->comp_sent_count = 0;
445 p_spq->unlimited_pending_count = 0;
447 bitmap_zero(p_spq->p_comp_bitmap, SPQ_RING_SIZE);
448 p_spq->comp_bitmap_idx = 0;
450 /* SPQ cid, cannot fail */
451 qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_CORE, &p_spq->cid);
452 qed_spq_hw_initialize(p_hwfn, p_spq);
454 /* reset the chain itself */
455 qed_chain_reset(&p_spq->chain);
458 int qed_spq_alloc(struct qed_hwfn *p_hwfn)
460 struct qed_spq_entry *p_virt = NULL;
461 struct qed_spq *p_spq = NULL;
462 dma_addr_t p_phys = 0;
467 kzalloc(sizeof(struct qed_spq), GFP_KERNEL);
469 DP_NOTICE(p_hwfn, "Failed to allocate `struct qed_spq'\n");
474 if (qed_chain_alloc(p_hwfn->cdev,
475 QED_CHAIN_USE_TO_PRODUCE,
476 QED_CHAIN_MODE_SINGLE,
477 QED_CHAIN_CNT_TYPE_U16,
478 0, /* N/A when the mode is SINGLE */
479 sizeof(struct slow_path_element),
481 DP_NOTICE(p_hwfn, "Failed to allocate spq chain\n");
482 goto spq_allocate_fail;
485 /* allocate and fill the SPQ elements (incl. ramrod data list) */
486 capacity = qed_chain_get_capacity(&p_spq->chain);
487 p_virt = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
489 sizeof(struct qed_spq_entry),
490 &p_phys, GFP_KERNEL);
493 goto spq_allocate_fail;
495 p_spq->p_virt = p_virt;
496 p_spq->p_phys = p_phys;
497 p_hwfn->p_spq = p_spq;
502 qed_chain_free(p_hwfn->cdev, &p_spq->chain);
507 void qed_spq_free(struct qed_hwfn *p_hwfn)
509 struct qed_spq *p_spq = p_hwfn->p_spq;
516 capacity = qed_chain_get_capacity(&p_spq->chain);
517 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
519 sizeof(struct qed_spq_entry),
520 p_spq->p_virt, p_spq->p_phys);
523 qed_chain_free(p_hwfn->cdev, &p_spq->chain);
529 qed_spq_get_entry(struct qed_hwfn *p_hwfn,
530 struct qed_spq_entry **pp_ent)
532 struct qed_spq *p_spq = p_hwfn->p_spq;
533 struct qed_spq_entry *p_ent = NULL;
536 spin_lock_bh(&p_spq->lock);
538 if (list_empty(&p_spq->free_pool)) {
539 p_ent = kzalloc(sizeof(*p_ent), GFP_ATOMIC);
544 p_ent->queue = &p_spq->unlimited_pending;
546 p_ent = list_first_entry(&p_spq->free_pool,
547 struct qed_spq_entry,
549 list_del(&p_ent->list);
550 p_ent->queue = &p_spq->pending;
556 spin_unlock_bh(&p_spq->lock);
560 /* Locked variant; Should be called while the SPQ lock is taken */
561 static void __qed_spq_return_entry(struct qed_hwfn *p_hwfn,
562 struct qed_spq_entry *p_ent)
564 list_add_tail(&p_ent->list, &p_hwfn->p_spq->free_pool);
567 void qed_spq_return_entry(struct qed_hwfn *p_hwfn,
568 struct qed_spq_entry *p_ent)
570 spin_lock_bh(&p_hwfn->p_spq->lock);
571 __qed_spq_return_entry(p_hwfn, p_ent);
572 spin_unlock_bh(&p_hwfn->p_spq->lock);
576 * @brief qed_spq_add_entry - adds a new entry to the pending
577 * list. Should be used while lock is being held.
579 * Addes an entry to the pending list is there is room (en empty
580 * element is available in the free_pool), or else places the
581 * entry in the unlimited_pending pool.
590 qed_spq_add_entry(struct qed_hwfn *p_hwfn,
591 struct qed_spq_entry *p_ent,
592 enum spq_priority priority)
594 struct qed_spq *p_spq = p_hwfn->p_spq;
596 if (p_ent->queue == &p_spq->unlimited_pending) {
598 if (list_empty(&p_spq->free_pool)) {
599 list_add_tail(&p_ent->list, &p_spq->unlimited_pending);
600 p_spq->unlimited_pending_count++;
604 struct qed_spq_entry *p_en2;
606 p_en2 = list_first_entry(&p_spq->free_pool,
607 struct qed_spq_entry,
609 list_del(&p_en2->list);
611 /* Copy the ring element physical pointer to the new
612 * entry, since we are about to override the entire ring
613 * entry and don't want to lose the pointer.
615 p_ent->elem.data_ptr = p_en2->elem.data_ptr;
619 /* EBLOCK responsible to free the allocated p_ent */
620 if (p_ent->comp_mode != QED_SPQ_MODE_EBLOCK)
627 /* entry is to be placed in 'pending' queue */
629 case QED_SPQ_PRIORITY_NORMAL:
630 list_add_tail(&p_ent->list, &p_spq->pending);
631 p_spq->normal_count++;
633 case QED_SPQ_PRIORITY_HIGH:
634 list_add(&p_ent->list, &p_spq->pending);
644 /***************************************************************************
646 ***************************************************************************/
647 u32 qed_spq_get_cid(struct qed_hwfn *p_hwfn)
650 return 0xffffffff; /* illegal */
651 return p_hwfn->p_spq->cid;
654 /***************************************************************************
655 * Posting new Ramrods
656 ***************************************************************************/
657 static int qed_spq_post_list(struct qed_hwfn *p_hwfn,
658 struct list_head *head,
661 struct qed_spq *p_spq = p_hwfn->p_spq;
664 while (qed_chain_get_elem_left(&p_spq->chain) > keep_reserve &&
666 struct qed_spq_entry *p_ent =
667 list_first_entry(head, struct qed_spq_entry, list);
668 list_del(&p_ent->list);
669 list_add_tail(&p_ent->list, &p_spq->completion_pending);
670 p_spq->comp_sent_count++;
672 rc = qed_spq_hw_post(p_hwfn, p_spq, p_ent);
674 list_del(&p_ent->list);
675 __qed_spq_return_entry(p_hwfn, p_ent);
683 static int qed_spq_pend_post(struct qed_hwfn *p_hwfn)
685 struct qed_spq *p_spq = p_hwfn->p_spq;
686 struct qed_spq_entry *p_ent = NULL;
688 while (!list_empty(&p_spq->free_pool)) {
689 if (list_empty(&p_spq->unlimited_pending))
692 p_ent = list_first_entry(&p_spq->unlimited_pending,
693 struct qed_spq_entry,
698 list_del(&p_ent->list);
700 qed_spq_add_entry(p_hwfn, p_ent, p_ent->priority);
703 return qed_spq_post_list(p_hwfn, &p_spq->pending,
704 SPQ_HIGH_PRI_RESERVE_DEFAULT);
707 int qed_spq_post(struct qed_hwfn *p_hwfn,
708 struct qed_spq_entry *p_ent,
712 struct qed_spq *p_spq = p_hwfn ? p_hwfn->p_spq : NULL;
713 bool b_ret_ent = true;
719 DP_NOTICE(p_hwfn, "Got a NULL pointer\n");
723 /* Complete the entry */
724 rc = qed_spq_fill_entry(p_hwfn, p_ent);
726 spin_lock_bh(&p_spq->lock);
728 /* Check return value after LOCK is taken for cleaner error flow */
732 /* Add the request to the pending queue */
733 rc = qed_spq_add_entry(p_hwfn, p_ent, p_ent->priority);
737 rc = qed_spq_pend_post(p_hwfn);
739 /* Since it's possible that pending failed for a different
740 * entry [although unlikely], the failed entry was already
741 * dealt with; No need to return it here.
747 spin_unlock_bh(&p_spq->lock);
749 if (p_ent->comp_mode == QED_SPQ_MODE_EBLOCK) {
750 /* For entries in QED BLOCK mode, the completion code cannot
751 * perform the necessary cleanup - if it did, we couldn't
752 * access p_ent here to see whether it's successful or not.
753 * Thus, after gaining the answer perform the cleanup here.
755 rc = qed_spq_block(p_hwfn, p_ent, fw_return_code);
757 if (p_ent->queue == &p_spq->unlimited_pending) {
758 /* This is an allocated p_ent which does not need to
769 qed_spq_return_entry(p_hwfn, p_ent);
774 spin_lock_bh(&p_spq->lock);
775 list_del(&p_ent->list);
776 qed_chain_return_produced(&p_spq->chain);
779 /* return to the free pool */
781 __qed_spq_return_entry(p_hwfn, p_ent);
782 spin_unlock_bh(&p_spq->lock);
787 int qed_spq_completion(struct qed_hwfn *p_hwfn,
790 union event_ring_data *p_data)
792 struct qed_spq *p_spq;
793 struct qed_spq_entry *p_ent = NULL;
794 struct qed_spq_entry *tmp;
795 struct qed_spq_entry *found = NULL;
801 p_spq = p_hwfn->p_spq;
805 spin_lock_bh(&p_spq->lock);
806 list_for_each_entry_safe(p_ent, tmp, &p_spq->completion_pending,
808 if (p_ent->elem.hdr.echo == echo) {
809 u16 pos = le16_to_cpu(echo) % SPQ_RING_SIZE;
811 list_del(&p_ent->list);
813 /* Avoid overriding of SPQ entries when getting
814 * out-of-order completions, by marking the completions
815 * in a bitmap and increasing the chain consumer only
816 * for the first successive completed entries.
818 __set_bit(pos, p_spq->p_comp_bitmap);
820 while (test_bit(p_spq->comp_bitmap_idx,
821 p_spq->p_comp_bitmap)) {
822 __clear_bit(p_spq->comp_bitmap_idx,
823 p_spq->p_comp_bitmap);
824 p_spq->comp_bitmap_idx++;
825 qed_chain_return_produced(&p_spq->chain);
833 /* This is relatively uncommon - depends on scenarios
834 * which have mutliple per-PF sent ramrods.
836 DP_VERBOSE(p_hwfn, QED_MSG_SPQ,
837 "Got completion for echo %04x - doesn't match echo %04x in completion pending list\n",
839 le16_to_cpu(p_ent->elem.hdr.echo));
842 /* Release lock before callback, as callback may post
843 * an additional ramrod.
845 spin_unlock_bh(&p_spq->lock);
849 "Failed to find an entry this EQE completes\n");
853 DP_VERBOSE(p_hwfn, QED_MSG_SPQ, "Complete: func %p cookie %p)\n",
854 p_ent->comp_cb.function, p_ent->comp_cb.cookie);
855 if (found->comp_cb.function)
856 found->comp_cb.function(p_hwfn, found->comp_cb.cookie, p_data,
859 if ((found->comp_mode != QED_SPQ_MODE_EBLOCK) ||
860 (found->queue == &p_spq->unlimited_pending))
861 /* EBLOCK is responsible for returning its own entry into the
862 * free list, unless it originally added the entry into the
863 * unlimited pending list.
865 qed_spq_return_entry(p_hwfn, found);
867 /* Attempt to post pending requests */
868 spin_lock_bh(&p_spq->lock);
869 rc = qed_spq_pend_post(p_hwfn);
870 spin_unlock_bh(&p_spq->lock);
875 struct qed_consq *qed_consq_alloc(struct qed_hwfn *p_hwfn)
877 struct qed_consq *p_consq;
879 /* Allocate ConsQ struct */
880 p_consq = kzalloc(sizeof(*p_consq), GFP_KERNEL);
882 DP_NOTICE(p_hwfn, "Failed to allocate `struct qed_consq'\n");
886 /* Allocate and initialize EQ chain*/
887 if (qed_chain_alloc(p_hwfn->cdev,
888 QED_CHAIN_USE_TO_PRODUCE,
890 QED_CHAIN_CNT_TYPE_U16,
891 QED_CHAIN_PAGE_SIZE / 0x80,
892 0x80, &p_consq->chain)) {
893 DP_NOTICE(p_hwfn, "Failed to allocate consq chain");
894 goto consq_allocate_fail;
900 qed_consq_free(p_hwfn, p_consq);
904 void qed_consq_setup(struct qed_hwfn *p_hwfn,
905 struct qed_consq *p_consq)
907 qed_chain_reset(&p_consq->chain);
910 void qed_consq_free(struct qed_hwfn *p_hwfn,
911 struct qed_consq *p_consq)
915 qed_chain_free(p_hwfn->cdev, &p_consq->chain);