2 * Copyright (c) 2016 QLogic Corporation.
6 * See LICENSE.qede_pmd for copyright and licensing details.
11 #include "ecore_gtt_reg_addr.h"
12 #include "ecore_hsi_common.h"
14 #include "ecore_sp_api.h"
15 #include "ecore_spq.h"
16 #include "ecore_iro.h"
17 #include "ecore_init_fw_funcs.h"
18 #include "ecore_cxt.h"
19 #include "ecore_int.h"
20 #include "ecore_dev_api.h"
21 #include "ecore_mcp.h"
23 #include "ecore_sriov.h"
25 /***************************************************************************
26 * Structures & Definitions
27 ***************************************************************************/
29 #define SPQ_HIGH_PRI_RESERVE_DEFAULT (1)
31 #define SPQ_BLOCK_DELAY_MAX_ITER (10)
32 #define SPQ_BLOCK_DELAY_US (10)
33 #define SPQ_BLOCK_SLEEP_MAX_ITER (1000)
34 #define SPQ_BLOCK_SLEEP_MS (5)
36 /***************************************************************************
37 * Blocking Imp. (BLOCK/EBLOCK mode)
38 ***************************************************************************/
39 static void ecore_spq_blocking_cb(struct ecore_hwfn *p_hwfn,
41 union event_ring_data *data,
44 struct ecore_spq_comp_done *comp_done;
46 comp_done = (struct ecore_spq_comp_done *)cookie;
48 comp_done->done = 0x1;
49 comp_done->fw_return_code = fw_return_code;
51 /* make update visible to waiting thread */
52 OSAL_SMP_WMB(p_hwfn->p_dev);
55 static enum _ecore_status_t __ecore_spq_block(struct ecore_hwfn *p_hwfn,
56 struct ecore_spq_entry *p_ent,
58 bool sleep_between_iter)
60 struct ecore_spq_comp_done *comp_done;
63 comp_done = (struct ecore_spq_comp_done *)p_ent->comp_cb.cookie;
64 iter_cnt = sleep_between_iter ? SPQ_BLOCK_SLEEP_MAX_ITER
65 : SPQ_BLOCK_DELAY_MAX_ITER;
68 OSAL_POLL_MODE_DPC(p_hwfn);
69 OSAL_SMP_RMB(p_hwfn->p_dev);
70 if (comp_done->done == 1) {
72 *p_fw_ret = comp_done->fw_return_code;
76 if (sleep_between_iter)
77 OSAL_MSLEEP(SPQ_BLOCK_SLEEP_MS);
79 OSAL_UDELAY(SPQ_BLOCK_DELAY_US);
85 static enum _ecore_status_t ecore_spq_block(struct ecore_hwfn *p_hwfn,
86 struct ecore_spq_entry *p_ent,
87 u8 *p_fw_ret, bool skip_quick_poll)
89 struct ecore_spq_comp_done *comp_done;
90 enum _ecore_status_t rc;
92 /* A relatively short polling period w/o sleeping, to allow the FW to
93 * complete the ramrod and thus possibly to avoid the following sleeps.
95 if (!skip_quick_poll) {
96 rc = __ecore_spq_block(p_hwfn, p_ent, p_fw_ret, false);
97 if (rc == ECORE_SUCCESS)
101 /* Move to polling with a sleeping period between iterations */
102 rc = __ecore_spq_block(p_hwfn, p_ent, p_fw_ret, true);
103 if (rc == ECORE_SUCCESS)
104 return ECORE_SUCCESS;
106 DP_INFO(p_hwfn, "Ramrod is stuck, requesting MCP drain\n");
107 rc = ecore_mcp_drain(p_hwfn, p_hwfn->p_main_ptt);
108 if (rc != ECORE_SUCCESS) {
109 DP_NOTICE(p_hwfn, true, "MCP drain failed\n");
113 /* Retry after drain */
114 rc = __ecore_spq_block(p_hwfn, p_ent, p_fw_ret, true);
115 if (rc == ECORE_SUCCESS)
116 return ECORE_SUCCESS;
118 comp_done = (struct ecore_spq_comp_done *)p_ent->comp_cb.cookie;
119 if (comp_done->done == 1) {
121 *p_fw_ret = comp_done->fw_return_code;
122 return ECORE_SUCCESS;
125 DP_NOTICE(p_hwfn, true,
126 "Ramrod is stuck [CID %08x cmd %02x proto %02x echo %04x]\n",
127 OSAL_LE32_TO_CPU(p_ent->elem.hdr.cid),
128 p_ent->elem.hdr.cmd_id, p_ent->elem.hdr.protocol_id,
129 OSAL_LE16_TO_CPU(p_ent->elem.hdr.echo));
131 ecore_hw_err_notify(p_hwfn, ECORE_HW_ERR_RAMROD_FAIL);
136 /***************************************************************************
137 * SPQ entries inner API
138 ***************************************************************************/
139 static enum _ecore_status_t
140 ecore_spq_fill_entry(struct ecore_hwfn *p_hwfn, struct ecore_spq_entry *p_ent)
144 switch (p_ent->comp_mode) {
145 case ECORE_SPQ_MODE_EBLOCK:
146 case ECORE_SPQ_MODE_BLOCK:
147 p_ent->comp_cb.function = ecore_spq_blocking_cb;
149 case ECORE_SPQ_MODE_CB:
152 DP_NOTICE(p_hwfn, true, "Unknown SPQE completion mode %d\n",
157 DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ,
158 "Ramrod header: [CID 0x%08x CMD 0x%02x protocol 0x%02x]"
159 " Data pointer: [%08x:%08x] Completion Mode: %s\n",
160 p_ent->elem.hdr.cid, p_ent->elem.hdr.cmd_id,
161 p_ent->elem.hdr.protocol_id,
162 p_ent->elem.data_ptr.hi, p_ent->elem.data_ptr.lo,
163 D_TRINE(p_ent->comp_mode, ECORE_SPQ_MODE_EBLOCK,
164 ECORE_SPQ_MODE_BLOCK, "MODE_EBLOCK", "MODE_BLOCK",
167 return ECORE_SUCCESS;
170 /***************************************************************************
172 ***************************************************************************/
173 static void ecore_spq_hw_initialize(struct ecore_hwfn *p_hwfn,
174 struct ecore_spq *p_spq)
177 struct ecore_cxt_info cxt_info;
178 struct core_conn_context *p_cxt;
179 union ecore_qm_pq_params pq_params;
180 enum _ecore_status_t rc;
182 cxt_info.iid = p_spq->cid;
184 rc = ecore_cxt_get_cid_info(p_hwfn, &cxt_info);
187 DP_NOTICE(p_hwfn, true, "Cannot find context info for cid=%d\n",
192 p_cxt = cxt_info.p_cxt;
194 if (ECORE_IS_BB(p_hwfn->p_dev) || ECORE_IS_AH(p_hwfn->p_dev)) {
195 SET_FIELD(p_cxt->xstorm_ag_context.flags10,
196 E4_XSTORM_CORE_CONN_AG_CTX_DQ_CF_EN, 1);
197 SET_FIELD(p_cxt->xstorm_ag_context.flags1,
198 E4_XSTORM_CORE_CONN_AG_CTX_DQ_CF_ACTIVE, 1);
199 /* SET_FIELD(p_cxt->xstorm_ag_context.flags10,
200 * E4_XSTORM_CORE_CONN_AG_CTX_SLOW_PATH_EN, 1);
202 SET_FIELD(p_cxt->xstorm_ag_context.flags9,
203 E4_XSTORM_CORE_CONN_AG_CTX_CONSOLID_PROD_CF_EN, 1);
206 /* CDU validation - FIXME currently disabled */
208 /* QM physical queue */
209 OSAL_MEMSET(&pq_params, 0, sizeof(pq_params));
210 pq_params.core.tc = LB_TC;
211 pq = ecore_get_qm_pq(p_hwfn, PROTOCOLID_CORE, &pq_params);
212 p_cxt->xstorm_ag_context.physical_q0 = OSAL_CPU_TO_LE16(pq);
214 p_cxt->xstorm_st_context.spq_base_lo =
215 DMA_LO_LE(p_spq->chain.p_phys_addr);
216 p_cxt->xstorm_st_context.spq_base_hi =
217 DMA_HI_LE(p_spq->chain.p_phys_addr);
219 DMA_REGPAIR_LE(p_cxt->xstorm_st_context.consolid_base_addr,
220 p_hwfn->p_consq->chain.p_phys_addr);
223 static enum _ecore_status_t ecore_spq_hw_post(struct ecore_hwfn *p_hwfn,
224 struct ecore_spq *p_spq,
225 struct ecore_spq_entry *p_ent)
227 struct ecore_chain *p_chain = &p_hwfn->p_spq->chain;
228 u16 echo = ecore_chain_get_prod_idx(p_chain);
229 struct slow_path_element *elem;
230 struct core_db_data db;
232 p_ent->elem.hdr.echo = OSAL_CPU_TO_LE16(echo);
233 elem = ecore_chain_produce(p_chain);
235 DP_NOTICE(p_hwfn, true, "Failed to produce from SPQ chain\n");
239 *elem = p_ent->elem; /* struct assignment */
241 /* send a doorbell on the slow hwfn session */
242 OSAL_MEMSET(&db, 0, sizeof(db));
243 SET_FIELD(db.params, CORE_DB_DATA_DEST, DB_DEST_XCM);
244 SET_FIELD(db.params, CORE_DB_DATA_AGG_CMD, DB_AGG_CMD_SET);
245 SET_FIELD(db.params, CORE_DB_DATA_AGG_VAL_SEL,
246 DQ_XCM_CORE_SPQ_PROD_CMD);
247 db.agg_flags = DQ_XCM_CORE_DQ_CF_CMD;
248 db.spq_prod = OSAL_CPU_TO_LE16(ecore_chain_get_prod_idx(p_chain));
250 /* make sure the SPQE is updated before the doorbell */
251 OSAL_WMB(p_hwfn->p_dev);
253 DOORBELL(p_hwfn, DB_ADDR(p_spq->cid, DQ_DEMS_LEGACY),
256 /* make sure doorbell is rang */
257 OSAL_WMB(p_hwfn->p_dev);
259 DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ,
260 "Doorbelled [0x%08x, CID 0x%08x] with Flags: %02x"
261 " agg_params: %02x, prod: %04x\n",
262 DB_ADDR(p_spq->cid, DQ_DEMS_LEGACY), p_spq->cid, db.params,
263 db.agg_flags, ecore_chain_get_prod_idx(p_chain));
265 return ECORE_SUCCESS;
268 /***************************************************************************
269 * Asynchronous events
270 ***************************************************************************/
272 static enum _ecore_status_t
273 ecore_async_event_completion(struct ecore_hwfn *p_hwfn,
274 struct event_ring_entry *p_eqe)
276 switch (p_eqe->protocol_id) {
277 case PROTOCOLID_COMMON:
278 return ecore_sriov_eqe_event(p_hwfn,
280 p_eqe->echo, &p_eqe->data);
283 true, "Unknown Async completion for protocol: %d\n",
289 /***************************************************************************
291 ***************************************************************************/
292 void ecore_eq_prod_update(struct ecore_hwfn *p_hwfn, u16 prod)
294 u32 addr = GTT_BAR0_MAP_REG_USDM_RAM +
295 USTORM_EQE_CONS_OFFSET(p_hwfn->rel_pf_id);
297 REG_WR16(p_hwfn, addr, prod);
299 /* keep prod updates ordered */
300 OSAL_MMIOWB(p_hwfn->p_dev);
303 enum _ecore_status_t ecore_eq_completion(struct ecore_hwfn *p_hwfn,
306 struct ecore_eq *p_eq = cookie;
307 struct ecore_chain *p_chain = &p_eq->chain;
308 enum _ecore_status_t rc = 0;
310 /* take a snapshot of the FW consumer */
311 u16 fw_cons_idx = OSAL_LE16_TO_CPU(*p_eq->p_fw_cons);
313 DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ, "fw_cons_idx %x\n", fw_cons_idx);
315 /* Need to guarantee the fw_cons index we use points to a usuable
316 * element (to comply with our chain), so our macros would comply
318 if ((fw_cons_idx & ecore_chain_get_usable_per_page(p_chain)) ==
319 ecore_chain_get_usable_per_page(p_chain)) {
320 fw_cons_idx += ecore_chain_get_unusable_per_page(p_chain);
323 /* Complete current segment of eq entries */
324 while (fw_cons_idx != ecore_chain_get_cons_idx(p_chain)) {
325 struct event_ring_entry *p_eqe = ecore_chain_consume(p_chain);
331 DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ,
332 "op %x prot %x res0 %x echo %x fwret %x flags %x\n",
333 p_eqe->opcode, /* Event Opcode */
334 p_eqe->protocol_id, /* Event Protocol ID */
335 p_eqe->reserved0, /* Reserved */
336 /* Echo value from ramrod data on the host */
337 OSAL_LE16_TO_CPU(p_eqe->echo),
338 p_eqe->fw_return_code, /* FW return code for SP
343 if (GET_FIELD(p_eqe->flags, EVENT_RING_ENTRY_ASYNC)) {
344 if (ecore_async_event_completion(p_hwfn, p_eqe))
346 } else if (ecore_spq_completion(p_hwfn,
348 p_eqe->fw_return_code,
353 ecore_chain_recycle_consumed(p_chain);
356 ecore_eq_prod_update(p_hwfn, ecore_chain_get_prod_idx(p_chain));
361 struct ecore_eq *ecore_eq_alloc(struct ecore_hwfn *p_hwfn, u16 num_elem)
363 struct ecore_eq *p_eq;
365 /* Allocate EQ struct */
366 p_eq = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, sizeof(*p_eq));
368 DP_NOTICE(p_hwfn, true,
369 "Failed to allocate `struct ecore_eq'\n");
373 /* Allocate and initialize EQ chain*/
374 if (ecore_chain_alloc(p_hwfn->p_dev,
375 ECORE_CHAIN_USE_TO_PRODUCE,
376 ECORE_CHAIN_MODE_PBL,
377 ECORE_CHAIN_CNT_TYPE_U16,
379 sizeof(union event_ring_element),
380 &p_eq->chain, OSAL_NULL)) {
381 DP_NOTICE(p_hwfn, true, "Failed to allocate eq chain\n");
382 goto eq_allocate_fail;
385 /* register EQ completion on the SP SB */
386 ecore_int_register_cb(p_hwfn, ecore_eq_completion,
387 p_eq, &p_eq->eq_sb_index, &p_eq->p_fw_cons);
392 ecore_eq_free(p_hwfn, p_eq);
396 void ecore_eq_setup(struct ecore_hwfn *p_hwfn, struct ecore_eq *p_eq)
398 ecore_chain_reset(&p_eq->chain);
401 void ecore_eq_free(struct ecore_hwfn *p_hwfn, struct ecore_eq *p_eq)
405 ecore_chain_free(p_hwfn->p_dev, &p_eq->chain);
406 OSAL_FREE(p_hwfn->p_dev, p_eq);
409 /***************************************************************************
410 * CQE API - manipulate EQ functionality
411 ***************************************************************************/
412 static enum _ecore_status_t ecore_cqe_completion(struct ecore_hwfn *p_hwfn,
413 struct eth_slow_path_rx_cqe
415 enum protocol_type protocol)
417 if (IS_VF(p_hwfn->p_dev))
418 return OSAL_VF_CQE_COMPLETION(p_hwfn, cqe, protocol);
420 /* @@@tmp - it's possible we'll eventually want to handle some
421 * actual commands that can arrive here, but for now this is only
422 * used to complete the ramrod using the echo value on the cqe
424 return ecore_spq_completion(p_hwfn, cqe->echo, 0, OSAL_NULL);
427 enum _ecore_status_t ecore_eth_cqe_completion(struct ecore_hwfn *p_hwfn,
428 struct eth_slow_path_rx_cqe *cqe)
430 enum _ecore_status_t rc;
432 rc = ecore_cqe_completion(p_hwfn, cqe, PROTOCOLID_ETH);
434 DP_NOTICE(p_hwfn, true,
435 "Failed to handle RXQ CQE [cmd 0x%02x]\n",
442 /***************************************************************************
443 * Slow hwfn Queue (spq)
444 ***************************************************************************/
445 void ecore_spq_setup(struct ecore_hwfn *p_hwfn)
447 struct ecore_spq *p_spq = p_hwfn->p_spq;
448 struct ecore_spq_entry *p_virt = OSAL_NULL;
449 dma_addr_t p_phys = 0;
452 OSAL_LIST_INIT(&p_spq->pending);
453 OSAL_LIST_INIT(&p_spq->completion_pending);
454 OSAL_LIST_INIT(&p_spq->free_pool);
455 OSAL_LIST_INIT(&p_spq->unlimited_pending);
456 OSAL_SPIN_LOCK_INIT(&p_spq->lock);
459 p_phys = p_spq->p_phys + OFFSETOF(struct ecore_spq_entry, ramrod);
460 p_virt = p_spq->p_virt;
462 capacity = ecore_chain_get_capacity(&p_spq->chain);
463 for (i = 0; i < capacity; i++) {
464 DMA_REGPAIR_LE(p_virt->elem.data_ptr, p_phys);
466 OSAL_LIST_PUSH_TAIL(&p_virt->list, &p_spq->free_pool);
469 p_phys += sizeof(struct ecore_spq_entry);
473 p_spq->normal_count = 0;
474 p_spq->comp_count = 0;
475 p_spq->comp_sent_count = 0;
476 p_spq->unlimited_pending_count = 0;
478 OSAL_MEM_ZERO(p_spq->p_comp_bitmap,
479 SPQ_COMP_BMAP_SIZE * sizeof(unsigned long));
480 p_spq->comp_bitmap_idx = 0;
482 /* SPQ cid, cannot fail */
483 ecore_cxt_acquire_cid(p_hwfn, PROTOCOLID_CORE, &p_spq->cid);
484 ecore_spq_hw_initialize(p_hwfn, p_spq);
486 /* reset the chain itself */
487 ecore_chain_reset(&p_spq->chain);
490 enum _ecore_status_t ecore_spq_alloc(struct ecore_hwfn *p_hwfn)
492 struct ecore_spq_entry *p_virt = OSAL_NULL;
493 struct ecore_spq *p_spq = OSAL_NULL;
494 dma_addr_t p_phys = 0;
499 OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, sizeof(struct ecore_spq));
501 DP_NOTICE(p_hwfn, true,
502 "Failed to allocate `struct ecore_spq'\n");
507 if (ecore_chain_alloc(p_hwfn->p_dev,
508 ECORE_CHAIN_USE_TO_PRODUCE,
509 ECORE_CHAIN_MODE_SINGLE,
510 ECORE_CHAIN_CNT_TYPE_U16,
511 0, /* N/A when the mode is SINGLE */
512 sizeof(struct slow_path_element),
513 &p_spq->chain, OSAL_NULL)) {
514 DP_NOTICE(p_hwfn, true, "Failed to allocate spq chain\n");
515 goto spq_allocate_fail;
518 /* allocate and fill the SPQ elements (incl. ramrod data list) */
519 capacity = ecore_chain_get_capacity(&p_spq->chain);
520 p_virt = OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev, &p_phys,
522 sizeof(struct ecore_spq_entry));
524 goto spq_allocate_fail;
526 p_spq->p_virt = p_virt;
527 p_spq->p_phys = p_phys;
529 OSAL_SPIN_LOCK_ALLOC(p_hwfn, &p_spq->lock);
531 p_hwfn->p_spq = p_spq;
532 return ECORE_SUCCESS;
535 ecore_chain_free(p_hwfn->p_dev, &p_spq->chain);
536 OSAL_FREE(p_hwfn->p_dev, p_spq);
540 void ecore_spq_free(struct ecore_hwfn *p_hwfn)
542 struct ecore_spq *p_spq = p_hwfn->p_spq;
549 capacity = ecore_chain_get_capacity(&p_spq->chain);
550 OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev,
554 sizeof(struct ecore_spq_entry));
557 ecore_chain_free(p_hwfn->p_dev, &p_spq->chain);
558 OSAL_SPIN_LOCK_DEALLOC(&p_spq->lock);
559 OSAL_FREE(p_hwfn->p_dev, p_spq);
563 ecore_spq_get_entry(struct ecore_hwfn *p_hwfn, struct ecore_spq_entry **pp_ent)
565 struct ecore_spq *p_spq = p_hwfn->p_spq;
566 struct ecore_spq_entry *p_ent = OSAL_NULL;
567 enum _ecore_status_t rc = ECORE_SUCCESS;
569 OSAL_SPIN_LOCK(&p_spq->lock);
571 if (OSAL_LIST_IS_EMPTY(&p_spq->free_pool)) {
572 p_ent = OSAL_ZALLOC(p_hwfn->p_dev, GFP_ATOMIC, sizeof(*p_ent));
574 DP_NOTICE(p_hwfn, true,
575 "Failed to allocate an SPQ entry for a pending"
580 p_ent->queue = &p_spq->unlimited_pending;
582 p_ent = OSAL_LIST_FIRST_ENTRY(&p_spq->free_pool,
583 struct ecore_spq_entry, list);
584 OSAL_LIST_REMOVE_ENTRY(&p_ent->list, &p_spq->free_pool);
585 p_ent->queue = &p_spq->pending;
591 OSAL_SPIN_UNLOCK(&p_spq->lock);
595 /* Locked variant; Should be called while the SPQ lock is taken */
596 static void __ecore_spq_return_entry(struct ecore_hwfn *p_hwfn,
597 struct ecore_spq_entry *p_ent)
599 OSAL_LIST_PUSH_TAIL(&p_ent->list, &p_hwfn->p_spq->free_pool);
602 void ecore_spq_return_entry(struct ecore_hwfn *p_hwfn,
603 struct ecore_spq_entry *p_ent)
605 OSAL_SPIN_LOCK(&p_hwfn->p_spq->lock);
606 __ecore_spq_return_entry(p_hwfn, p_ent);
607 OSAL_SPIN_UNLOCK(&p_hwfn->p_spq->lock);
611 * @brief ecore_spq_add_entry - adds a new entry to the pending
612 * list. Should be used while lock is being held.
614 * Addes an entry to the pending list is there is room (en empty
615 * element is available in the free_pool), or else places the
616 * entry in the unlimited_pending pool.
622 * @return enum _ecore_status_t
624 static enum _ecore_status_t
625 ecore_spq_add_entry(struct ecore_hwfn *p_hwfn,
626 struct ecore_spq_entry *p_ent, enum spq_priority priority)
628 struct ecore_spq *p_spq = p_hwfn->p_spq;
630 if (p_ent->queue == &p_spq->unlimited_pending) {
631 if (OSAL_LIST_IS_EMPTY(&p_spq->free_pool)) {
632 OSAL_LIST_PUSH_TAIL(&p_ent->list,
633 &p_spq->unlimited_pending);
634 p_spq->unlimited_pending_count++;
636 return ECORE_SUCCESS;
639 struct ecore_spq_entry *p_en2;
641 p_en2 = OSAL_LIST_FIRST_ENTRY(&p_spq->free_pool,
642 struct ecore_spq_entry,
644 OSAL_LIST_REMOVE_ENTRY(&p_en2->list, &p_spq->free_pool);
646 /* Copy the ring element physical pointer to the new
647 * entry, since we are about to override the entire ring
648 * entry and don't want to lose the pointer.
650 p_ent->elem.data_ptr = p_en2->elem.data_ptr;
654 /* EBLOCK responsible to free the allocated p_ent */
655 if (p_ent->comp_mode != ECORE_SPQ_MODE_EBLOCK)
656 OSAL_FREE(p_hwfn->p_dev, p_ent);
662 /* entry is to be placed in 'pending' queue */
664 case ECORE_SPQ_PRIORITY_NORMAL:
665 OSAL_LIST_PUSH_TAIL(&p_ent->list, &p_spq->pending);
666 p_spq->normal_count++;
668 case ECORE_SPQ_PRIORITY_HIGH:
669 OSAL_LIST_PUSH_HEAD(&p_ent->list, &p_spq->pending);
676 return ECORE_SUCCESS;
679 /***************************************************************************
681 ***************************************************************************/
683 u32 ecore_spq_get_cid(struct ecore_hwfn *p_hwfn)
686 return 0xffffffff; /* illegal */
687 return p_hwfn->p_spq->cid;
690 /***************************************************************************
691 * Posting new Ramrods
692 ***************************************************************************/
694 static enum _ecore_status_t ecore_spq_post_list(struct ecore_hwfn *p_hwfn,
698 struct ecore_spq *p_spq = p_hwfn->p_spq;
699 enum _ecore_status_t rc;
701 /* TODO - implementation might be wasteful; will always keep room
702 * for an additional high priority ramrod (even if one is already
705 while (ecore_chain_get_elem_left(&p_spq->chain) > keep_reserve &&
706 !OSAL_LIST_IS_EMPTY(head)) {
707 struct ecore_spq_entry *p_ent =
708 OSAL_LIST_FIRST_ENTRY(head, struct ecore_spq_entry, list);
709 if (p_ent != OSAL_NULL) {
711 #pragma warning(suppress : 6011 28182)
713 OSAL_LIST_REMOVE_ENTRY(&p_ent->list, head);
714 OSAL_LIST_PUSH_TAIL(&p_ent->list,
715 &p_spq->completion_pending);
716 p_spq->comp_sent_count++;
718 rc = ecore_spq_hw_post(p_hwfn, p_spq, p_ent);
720 OSAL_LIST_REMOVE_ENTRY(&p_ent->list,
721 &p_spq->completion_pending);
722 __ecore_spq_return_entry(p_hwfn, p_ent);
728 return ECORE_SUCCESS;
731 static enum _ecore_status_t ecore_spq_pend_post(struct ecore_hwfn *p_hwfn)
733 struct ecore_spq *p_spq = p_hwfn->p_spq;
734 struct ecore_spq_entry *p_ent = OSAL_NULL;
736 while (!OSAL_LIST_IS_EMPTY(&p_spq->free_pool)) {
737 if (OSAL_LIST_IS_EMPTY(&p_spq->unlimited_pending))
740 p_ent = OSAL_LIST_FIRST_ENTRY(&p_spq->unlimited_pending,
741 struct ecore_spq_entry, list);
746 #pragma warning(suppress : 6011)
748 OSAL_LIST_REMOVE_ENTRY(&p_ent->list, &p_spq->unlimited_pending);
750 ecore_spq_add_entry(p_hwfn, p_ent, p_ent->priority);
753 return ecore_spq_post_list(p_hwfn,
754 &p_spq->pending, SPQ_HIGH_PRI_RESERVE_DEFAULT);
757 enum _ecore_status_t ecore_spq_post(struct ecore_hwfn *p_hwfn,
758 struct ecore_spq_entry *p_ent,
761 enum _ecore_status_t rc = ECORE_SUCCESS;
762 struct ecore_spq *p_spq = p_hwfn ? p_hwfn->p_spq : OSAL_NULL;
763 bool b_ret_ent = true;
769 DP_NOTICE(p_hwfn, true, "Got a NULL pointer\n");
773 if (p_hwfn->p_dev->recov_in_prog) {
774 DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ,
775 "Recovery is in progress -> skip spq post"
776 " [cmd %02x protocol %02x]\n",
777 p_ent->elem.hdr.cmd_id, p_ent->elem.hdr.protocol_id);
778 /* Return success to let the flows to be completed successfully
779 * w/o any error handling.
781 return ECORE_SUCCESS;
784 OSAL_SPIN_LOCK(&p_spq->lock);
786 /* Complete the entry */
787 rc = ecore_spq_fill_entry(p_hwfn, p_ent);
789 /* Check return value after LOCK is taken for cleaner error flow */
793 /* Add the request to the pending queue */
794 rc = ecore_spq_add_entry(p_hwfn, p_ent, p_ent->priority);
798 rc = ecore_spq_pend_post(p_hwfn);
800 /* Since it's possible that pending failed for a different
801 * entry [although unlikely], the failed entry was already
802 * dealt with; No need to return it here.
808 OSAL_SPIN_UNLOCK(&p_spq->lock);
810 if (p_ent->comp_mode == ECORE_SPQ_MODE_EBLOCK) {
811 /* For entries in ECORE BLOCK mode, the completion code cannot
812 * perform the necessary cleanup - if it did, we couldn't
813 * access p_ent here to see whether it's successful or not.
814 * Thus, after gaining the answer perform the cleanup here.
816 rc = ecore_spq_block(p_hwfn, p_ent, fw_return_code,
817 p_ent->queue == &p_spq->unlimited_pending);
819 if (p_ent->queue == &p_spq->unlimited_pending) {
820 /* This is an allocated p_ent which does not need to
823 OSAL_FREE(p_hwfn->p_dev, p_ent);
825 /* TBD: handle error flow and remove p_ent from
835 ecore_spq_return_entry(p_hwfn, p_ent);
840 OSAL_SPIN_LOCK(&p_spq->lock);
841 OSAL_LIST_REMOVE_ENTRY(&p_ent->list, &p_spq->completion_pending);
842 ecore_chain_return_produced(&p_spq->chain);
845 /* return to the free pool */
847 __ecore_spq_return_entry(p_hwfn, p_ent);
848 OSAL_SPIN_UNLOCK(&p_spq->lock);
853 enum _ecore_status_t ecore_spq_completion(struct ecore_hwfn *p_hwfn,
856 union event_ring_data *p_data)
858 struct ecore_spq *p_spq;
859 struct ecore_spq_entry *p_ent = OSAL_NULL;
860 struct ecore_spq_entry *tmp;
861 struct ecore_spq_entry *found = OSAL_NULL;
862 enum _ecore_status_t rc;
867 p_spq = p_hwfn->p_spq;
871 OSAL_SPIN_LOCK(&p_spq->lock);
872 OSAL_LIST_FOR_EACH_ENTRY_SAFE(p_ent,
874 &p_spq->completion_pending,
875 list, struct ecore_spq_entry) {
876 if (p_ent->elem.hdr.echo == echo) {
877 OSAL_LIST_REMOVE_ENTRY(&p_ent->list,
878 &p_spq->completion_pending);
880 /* Avoid overriding of SPQ entries when getting
881 * out-of-order completions, by marking the completions
882 * in a bitmap and increasing the chain consumer only
883 * for the first successive completed entries.
885 SPQ_COMP_BMAP_SET_BIT(p_spq, echo);
886 while (SPQ_COMP_BMAP_TEST_BIT(p_spq,
887 p_spq->comp_bitmap_idx)) {
888 SPQ_COMP_BMAP_CLEAR_BIT(p_spq,
889 p_spq->comp_bitmap_idx);
890 p_spq->comp_bitmap_idx++;
891 ecore_chain_return_produced(&p_spq->chain);
899 /* This is debug and should be relatively uncommon - depends
900 * on scenarios which have mutliple per-PF sent ramrods.
902 DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ,
903 "Got completion for echo %04x - doesn't match"
904 " echo %04x in completion pending list\n",
905 OSAL_LE16_TO_CPU(echo),
906 OSAL_LE16_TO_CPU(p_ent->elem.hdr.echo));
909 /* Release lock before callback, as callback may post
910 * an additional ramrod.
912 OSAL_SPIN_UNLOCK(&p_spq->lock);
915 DP_NOTICE(p_hwfn, true,
916 "Failed to find an entry this"
917 " EQE [echo %04x] completes\n",
918 OSAL_LE16_TO_CPU(echo));
922 DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ,
923 "Complete EQE [echo %04x]: func %p cookie %p)\n",
924 OSAL_LE16_TO_CPU(echo),
925 p_ent->comp_cb.function, p_ent->comp_cb.cookie);
926 if (found->comp_cb.function)
927 found->comp_cb.function(p_hwfn, found->comp_cb.cookie, p_data,
930 DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ,
931 "Got a completion without a callback function\n");
933 if ((found->comp_mode != ECORE_SPQ_MODE_EBLOCK) ||
934 (found->queue == &p_spq->unlimited_pending))
935 /* EBLOCK is responsible for returning its own entry into the
936 * free list, unless it originally added the entry into the
937 * unlimited pending list.
939 ecore_spq_return_entry(p_hwfn, found);
941 /* Attempt to post pending requests */
942 OSAL_SPIN_LOCK(&p_spq->lock);
943 rc = ecore_spq_pend_post(p_hwfn);
944 OSAL_SPIN_UNLOCK(&p_spq->lock);
949 struct ecore_consq *ecore_consq_alloc(struct ecore_hwfn *p_hwfn)
951 struct ecore_consq *p_consq;
953 /* Allocate ConsQ struct */
955 OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, sizeof(*p_consq));
957 DP_NOTICE(p_hwfn, true,
958 "Failed to allocate `struct ecore_consq'\n");
962 /* Allocate and initialize EQ chain */
963 if (ecore_chain_alloc(p_hwfn->p_dev,
964 ECORE_CHAIN_USE_TO_PRODUCE,
965 ECORE_CHAIN_MODE_PBL,
966 ECORE_CHAIN_CNT_TYPE_U16,
967 ECORE_CHAIN_PAGE_SIZE / 0x80,
969 &p_consq->chain, OSAL_NULL)) {
970 DP_NOTICE(p_hwfn, true, "Failed to allocate consq chain");
971 goto consq_allocate_fail;
977 ecore_consq_free(p_hwfn, p_consq);
981 void ecore_consq_setup(struct ecore_hwfn *p_hwfn, struct ecore_consq *p_consq)
983 ecore_chain_reset(&p_consq->chain);
986 void ecore_consq_free(struct ecore_hwfn *p_hwfn, struct ecore_consq *p_consq)
990 ecore_chain_free(p_hwfn->p_dev, &p_consq->chain);
991 OSAL_FREE(p_hwfn->p_dev, p_consq);