1 /*******************************************************************
2 * This file is part of the Emulex RoCE Device Driver for *
3 * RoCE (RDMA over Converged Ethernet) CNA Adapters. *
4 * Copyright (C) 2008-2012 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
8 * This program is free software; you can redistribute it and/or *
9 * modify it under the terms of version 2 of the GNU General *
10 * Public License as published by the Free Software Foundation. *
11 * This program is distributed in the hope that it will be useful. *
12 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
13 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
14 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
15 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
16 * TO BE LEGALLY INVALID. See the GNU General Public License for *
17 * more details, a copy of which can be found in the file COPYING *
18 * included with this package. *
20 * Contact Information:
21 * linux-drivers@emulex.com
25 * Costa Mesa, CA 92626
26 *******************************************************************/
28 #include <linux/sched.h>
29 #include <linux/interrupt.h>
30 #include <linux/log2.h>
31 #include <linux/dma-mapping.h>
33 #include <rdma/ib_verbs.h>
34 #include <rdma/ib_user_verbs.h>
37 #include "ocrdma_hw.h"
38 #include "ocrdma_verbs.h"
39 #include "ocrdma_ah.h"
42 OCRDMA_MBX_STATUS_FAILED = 1,
43 OCRDMA_MBX_STATUS_ILLEGAL_FIELD = 3,
44 OCRDMA_MBX_STATUS_OOR = 100,
45 OCRDMA_MBX_STATUS_INVALID_PD = 101,
46 OCRDMA_MBX_STATUS_PD_INUSE = 102,
47 OCRDMA_MBX_STATUS_INVALID_CQ = 103,
48 OCRDMA_MBX_STATUS_INVALID_QP = 104,
49 OCRDMA_MBX_STATUS_INVALID_LKEY = 105,
50 OCRDMA_MBX_STATUS_ORD_EXCEEDS = 106,
51 OCRDMA_MBX_STATUS_IRD_EXCEEDS = 107,
52 OCRDMA_MBX_STATUS_SENDQ_WQE_EXCEEDS = 108,
53 OCRDMA_MBX_STATUS_RECVQ_RQE_EXCEEDS = 109,
54 OCRDMA_MBX_STATUS_SGE_SEND_EXCEEDS = 110,
55 OCRDMA_MBX_STATUS_SGE_WRITE_EXCEEDS = 111,
56 OCRDMA_MBX_STATUS_SGE_RECV_EXCEEDS = 112,
57 OCRDMA_MBX_STATUS_INVALID_STATE_CHANGE = 113,
58 OCRDMA_MBX_STATUS_MW_BOUND = 114,
59 OCRDMA_MBX_STATUS_INVALID_VA = 115,
60 OCRDMA_MBX_STATUS_INVALID_LENGTH = 116,
61 OCRDMA_MBX_STATUS_INVALID_FBO = 117,
62 OCRDMA_MBX_STATUS_INVALID_ACC_RIGHTS = 118,
63 OCRDMA_MBX_STATUS_INVALID_PBE_SIZE = 119,
64 OCRDMA_MBX_STATUS_INVALID_PBL_ENTRY = 120,
65 OCRDMA_MBX_STATUS_INVALID_PBL_SHIFT = 121,
66 OCRDMA_MBX_STATUS_INVALID_SRQ_ID = 129,
67 OCRDMA_MBX_STATUS_SRQ_ERROR = 133,
68 OCRDMA_MBX_STATUS_RQE_EXCEEDS = 134,
69 OCRDMA_MBX_STATUS_MTU_EXCEEDS = 135,
70 OCRDMA_MBX_STATUS_MAX_QP_EXCEEDS = 136,
71 OCRDMA_MBX_STATUS_SRQ_LIMIT_EXCEEDS = 137,
72 OCRDMA_MBX_STATUS_SRQ_SIZE_UNDERUNS = 138,
73 OCRDMA_MBX_STATUS_QP_BOUND = 130,
74 OCRDMA_MBX_STATUS_INVALID_CHANGE = 139,
75 OCRDMA_MBX_STATUS_ATOMIC_OPS_UNSUP = 140,
76 OCRDMA_MBX_STATUS_INVALID_RNR_NAK_TIMER = 141,
77 OCRDMA_MBX_STATUS_MW_STILL_BOUND = 142,
78 OCRDMA_MBX_STATUS_PKEY_INDEX_INVALID = 143,
79 OCRDMA_MBX_STATUS_PKEY_INDEX_EXCEEDS = 144
82 enum additional_status {
83 OCRDMA_MBX_ADDI_STATUS_INSUFFICIENT_RESOURCES = 22
87 OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_PRIVILEDGES = 1,
88 OCRDMA_MBX_CQE_STATUS_INVALID_PARAMETER = 2,
89 OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_RESOURCES = 3,
90 OCRDMA_MBX_CQE_STATUS_QUEUE_FLUSHING = 4,
91 OCRDMA_MBX_CQE_STATUS_DMA_FAILED = 5
94 static inline void *ocrdma_get_eqe(struct ocrdma_eq *eq)
96 return eq->q.va + (eq->q.tail * sizeof(struct ocrdma_eqe));
99 static inline void ocrdma_eq_inc_tail(struct ocrdma_eq *eq)
101 eq->q.tail = (eq->q.tail + 1) & (OCRDMA_EQ_LEN - 1);
104 static inline void *ocrdma_get_mcqe(struct ocrdma_dev *dev)
106 struct ocrdma_mcqe *cqe = (struct ocrdma_mcqe *)
107 (dev->mq.cq.va + (dev->mq.cq.tail * sizeof(struct ocrdma_mcqe)));
109 if (!(le32_to_cpu(cqe->valid_ae_cmpl_cons) & OCRDMA_MCQE_VALID_MASK))
114 static inline void ocrdma_mcq_inc_tail(struct ocrdma_dev *dev)
116 dev->mq.cq.tail = (dev->mq.cq.tail + 1) & (OCRDMA_MQ_CQ_LEN - 1);
119 static inline struct ocrdma_mqe *ocrdma_get_mqe(struct ocrdma_dev *dev)
121 return dev->mq.sq.va + (dev->mq.sq.head * sizeof(struct ocrdma_mqe));
124 static inline void ocrdma_mq_inc_head(struct ocrdma_dev *dev)
126 dev->mq.sq.head = (dev->mq.sq.head + 1) & (OCRDMA_MQ_LEN - 1);
129 static inline void *ocrdma_get_mqe_rsp(struct ocrdma_dev *dev)
131 return dev->mq.sq.va + (dev->mqe_ctx.tag * sizeof(struct ocrdma_mqe));
134 enum ib_qp_state get_ibqp_state(enum ocrdma_qp_state qps)
139 case OCRDMA_QPS_INIT:
146 case OCRDMA_QPS_SQ_DRAINING:
156 static enum ocrdma_qp_state get_ocrdma_qp_state(enum ib_qp_state qps)
160 return OCRDMA_QPS_RST;
162 return OCRDMA_QPS_INIT;
164 return OCRDMA_QPS_RTR;
166 return OCRDMA_QPS_RTS;
168 return OCRDMA_QPS_SQD;
170 return OCRDMA_QPS_SQE;
172 return OCRDMA_QPS_ERR;
174 return OCRDMA_QPS_ERR;
177 static int ocrdma_get_mbx_errno(u32 status)
180 u8 mbox_status = (status & OCRDMA_MBX_RSP_STATUS_MASK) >>
181 OCRDMA_MBX_RSP_STATUS_SHIFT;
182 u8 add_status = (status & OCRDMA_MBX_RSP_ASTATUS_MASK) >>
183 OCRDMA_MBX_RSP_ASTATUS_SHIFT;
185 switch (mbox_status) {
186 case OCRDMA_MBX_STATUS_OOR:
187 case OCRDMA_MBX_STATUS_MAX_QP_EXCEEDS:
191 case OCRDMA_MBX_STATUS_INVALID_PD:
192 case OCRDMA_MBX_STATUS_INVALID_CQ:
193 case OCRDMA_MBX_STATUS_INVALID_SRQ_ID:
194 case OCRDMA_MBX_STATUS_INVALID_QP:
195 case OCRDMA_MBX_STATUS_INVALID_CHANGE:
196 case OCRDMA_MBX_STATUS_MTU_EXCEEDS:
197 case OCRDMA_MBX_STATUS_INVALID_RNR_NAK_TIMER:
198 case OCRDMA_MBX_STATUS_PKEY_INDEX_INVALID:
199 case OCRDMA_MBX_STATUS_PKEY_INDEX_EXCEEDS:
200 case OCRDMA_MBX_STATUS_ILLEGAL_FIELD:
201 case OCRDMA_MBX_STATUS_INVALID_PBL_ENTRY:
202 case OCRDMA_MBX_STATUS_INVALID_LKEY:
203 case OCRDMA_MBX_STATUS_INVALID_VA:
204 case OCRDMA_MBX_STATUS_INVALID_LENGTH:
205 case OCRDMA_MBX_STATUS_INVALID_FBO:
206 case OCRDMA_MBX_STATUS_INVALID_ACC_RIGHTS:
207 case OCRDMA_MBX_STATUS_INVALID_PBE_SIZE:
208 case OCRDMA_MBX_STATUS_ATOMIC_OPS_UNSUP:
209 case OCRDMA_MBX_STATUS_SRQ_ERROR:
210 case OCRDMA_MBX_STATUS_SRQ_SIZE_UNDERUNS:
214 case OCRDMA_MBX_STATUS_PD_INUSE:
215 case OCRDMA_MBX_STATUS_QP_BOUND:
216 case OCRDMA_MBX_STATUS_MW_STILL_BOUND:
217 case OCRDMA_MBX_STATUS_MW_BOUND:
221 case OCRDMA_MBX_STATUS_RECVQ_RQE_EXCEEDS:
222 case OCRDMA_MBX_STATUS_SGE_RECV_EXCEEDS:
223 case OCRDMA_MBX_STATUS_RQE_EXCEEDS:
224 case OCRDMA_MBX_STATUS_SRQ_LIMIT_EXCEEDS:
225 case OCRDMA_MBX_STATUS_ORD_EXCEEDS:
226 case OCRDMA_MBX_STATUS_IRD_EXCEEDS:
227 case OCRDMA_MBX_STATUS_SENDQ_WQE_EXCEEDS:
228 case OCRDMA_MBX_STATUS_SGE_SEND_EXCEEDS:
229 case OCRDMA_MBX_STATUS_SGE_WRITE_EXCEEDS:
233 case OCRDMA_MBX_STATUS_FAILED:
234 switch (add_status) {
235 case OCRDMA_MBX_ADDI_STATUS_INSUFFICIENT_RESOURCES:
245 char *port_speed_string(struct ocrdma_dev *dev)
248 u16 speeds_supported;
250 speeds_supported = dev->phy.fixed_speeds_supported |
251 dev->phy.auto_speeds_supported;
252 if (speeds_supported & OCRDMA_PHY_SPEED_40GBPS)
254 else if (speeds_supported & OCRDMA_PHY_SPEED_10GBPS)
256 else if (speeds_supported & OCRDMA_PHY_SPEED_1GBPS)
262 static int ocrdma_get_mbx_cqe_errno(u16 cqe_status)
264 int err_num = -EINVAL;
266 switch (cqe_status) {
267 case OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_PRIVILEDGES:
270 case OCRDMA_MBX_CQE_STATUS_INVALID_PARAMETER:
273 case OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_RESOURCES:
274 case OCRDMA_MBX_CQE_STATUS_QUEUE_FLUSHING:
277 case OCRDMA_MBX_CQE_STATUS_DMA_FAILED:
285 void ocrdma_ring_cq_db(struct ocrdma_dev *dev, u16 cq_id, bool armed,
286 bool solicited, u16 cqe_popped)
288 u32 val = cq_id & OCRDMA_DB_CQ_RING_ID_MASK;
290 val |= ((cq_id & OCRDMA_DB_CQ_RING_ID_EXT_MASK) <<
291 OCRDMA_DB_CQ_RING_ID_EXT_MASK_SHIFT);
294 val |= (1 << OCRDMA_DB_CQ_REARM_SHIFT);
296 val |= (1 << OCRDMA_DB_CQ_SOLICIT_SHIFT);
297 val |= (cqe_popped << OCRDMA_DB_CQ_NUM_POPPED_SHIFT);
298 iowrite32(val, dev->nic_info.db + OCRDMA_DB_CQ_OFFSET);
301 static void ocrdma_ring_mq_db(struct ocrdma_dev *dev)
305 val |= dev->mq.sq.id & OCRDMA_MQ_ID_MASK;
306 val |= 1 << OCRDMA_MQ_NUM_MQE_SHIFT;
307 iowrite32(val, dev->nic_info.db + OCRDMA_DB_MQ_OFFSET);
310 static void ocrdma_ring_eq_db(struct ocrdma_dev *dev, u16 eq_id,
311 bool arm, bool clear_int, u16 num_eqe)
315 val |= eq_id & OCRDMA_EQ_ID_MASK;
316 val |= ((eq_id & OCRDMA_EQ_ID_EXT_MASK) << OCRDMA_EQ_ID_EXT_MASK_SHIFT);
318 val |= (1 << OCRDMA_REARM_SHIFT);
320 val |= (1 << OCRDMA_EQ_CLR_SHIFT);
321 val |= (1 << OCRDMA_EQ_TYPE_SHIFT);
322 val |= (num_eqe << OCRDMA_NUM_EQE_SHIFT);
323 iowrite32(val, dev->nic_info.db + OCRDMA_DB_EQ_OFFSET);
326 static void ocrdma_init_mch(struct ocrdma_mbx_hdr *cmd_hdr,
327 u8 opcode, u8 subsys, u32 cmd_len)
329 cmd_hdr->subsys_op = (opcode | (subsys << OCRDMA_MCH_SUBSYS_SHIFT));
330 cmd_hdr->timeout = 20; /* seconds */
331 cmd_hdr->cmd_len = cmd_len - sizeof(struct ocrdma_mbx_hdr);
334 static void *ocrdma_init_emb_mqe(u8 opcode, u32 cmd_len)
336 struct ocrdma_mqe *mqe;
338 mqe = kzalloc(sizeof(struct ocrdma_mqe), GFP_KERNEL);
341 mqe->hdr.spcl_sge_cnt_emb |=
342 (OCRDMA_MQE_EMBEDDED << OCRDMA_MQE_HDR_EMB_SHIFT) &
343 OCRDMA_MQE_HDR_EMB_MASK;
344 mqe->hdr.pyld_len = cmd_len - sizeof(struct ocrdma_mqe_hdr);
346 ocrdma_init_mch(&mqe->u.emb_req.mch, opcode, OCRDMA_SUBSYS_ROCE,
351 static void ocrdma_free_q(struct ocrdma_dev *dev, struct ocrdma_queue_info *q)
353 dma_free_coherent(&dev->nic_info.pdev->dev, q->size, q->va, q->dma);
356 static int ocrdma_alloc_q(struct ocrdma_dev *dev,
357 struct ocrdma_queue_info *q, u16 len, u16 entry_size)
359 memset(q, 0, sizeof(*q));
361 q->entry_size = entry_size;
362 q->size = len * entry_size;
363 q->va = dma_alloc_coherent(&dev->nic_info.pdev->dev, q->size,
364 &q->dma, GFP_KERNEL);
367 memset(q->va, 0, q->size);
371 static void ocrdma_build_q_pages(struct ocrdma_pa *q_pa, int cnt,
372 dma_addr_t host_pa, int hw_page_size)
376 for (i = 0; i < cnt; i++) {
377 q_pa[i].lo = (u32) (host_pa & 0xffffffff);
378 q_pa[i].hi = (u32) upper_32_bits(host_pa);
379 host_pa += hw_page_size;
383 static int ocrdma_mbx_delete_q(struct ocrdma_dev *dev,
384 struct ocrdma_queue_info *q, int queue_type)
388 struct ocrdma_delete_q_req *cmd = dev->mbx_cmd;
390 switch (queue_type) {
392 opcode = OCRDMA_CMD_DELETE_MQ;
395 opcode = OCRDMA_CMD_DELETE_CQ;
398 opcode = OCRDMA_CMD_DELETE_EQ;
403 memset(cmd, 0, sizeof(*cmd));
404 ocrdma_init_mch(&cmd->req, opcode, OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
407 status = be_roce_mcc_cmd(dev->nic_info.netdev,
408 cmd, sizeof(*cmd), NULL, NULL);
414 static int ocrdma_mbx_create_eq(struct ocrdma_dev *dev, struct ocrdma_eq *eq)
417 struct ocrdma_create_eq_req *cmd = dev->mbx_cmd;
418 struct ocrdma_create_eq_rsp *rsp = dev->mbx_cmd;
420 memset(cmd, 0, sizeof(*cmd));
421 ocrdma_init_mch(&cmd->req, OCRDMA_CMD_CREATE_EQ, OCRDMA_SUBSYS_COMMON,
424 cmd->req.rsvd_version = 2;
426 cmd->valid = OCRDMA_CREATE_EQ_VALID;
427 cmd->cnt = 4 << OCRDMA_CREATE_EQ_CNT_SHIFT;
429 ocrdma_build_q_pages(&cmd->pa[0], cmd->num_pages, eq->q.dma,
431 status = be_roce_mcc_cmd(dev->nic_info.netdev, cmd, sizeof(*cmd), NULL,
434 eq->q.id = rsp->vector_eqid & 0xffff;
435 eq->vector = (rsp->vector_eqid >> 16) & 0xffff;
436 eq->q.created = true;
441 static int ocrdma_create_eq(struct ocrdma_dev *dev,
442 struct ocrdma_eq *eq, u16 q_len)
446 status = ocrdma_alloc_q(dev, &eq->q, OCRDMA_EQ_LEN,
447 sizeof(struct ocrdma_eqe));
451 status = ocrdma_mbx_create_eq(dev, eq);
455 ocrdma_ring_eq_db(dev, eq->q.id, true, true, 0);
459 ocrdma_free_q(dev, &eq->q);
463 int ocrdma_get_irq(struct ocrdma_dev *dev, struct ocrdma_eq *eq)
467 if (dev->nic_info.intr_mode == BE_INTERRUPT_MODE_INTX)
468 irq = dev->nic_info.pdev->irq;
470 irq = dev->nic_info.msix.vector_list[eq->vector];
474 static void _ocrdma_destroy_eq(struct ocrdma_dev *dev, struct ocrdma_eq *eq)
477 ocrdma_mbx_delete_q(dev, &eq->q, QTYPE_EQ);
478 ocrdma_free_q(dev, &eq->q);
482 static void ocrdma_destroy_eq(struct ocrdma_dev *dev, struct ocrdma_eq *eq)
486 /* disarm EQ so that interrupts are not generated
487 * during freeing and EQ delete is in progress.
489 ocrdma_ring_eq_db(dev, eq->q.id, false, false, 0);
491 irq = ocrdma_get_irq(dev, eq);
493 _ocrdma_destroy_eq(dev, eq);
496 static void ocrdma_destroy_eqs(struct ocrdma_dev *dev)
500 for (i = 0; i < dev->eq_cnt; i++)
501 ocrdma_destroy_eq(dev, &dev->eq_tbl[i]);
504 static int ocrdma_mbx_mq_cq_create(struct ocrdma_dev *dev,
505 struct ocrdma_queue_info *cq,
506 struct ocrdma_queue_info *eq)
508 struct ocrdma_create_cq_cmd *cmd = dev->mbx_cmd;
509 struct ocrdma_create_cq_cmd_rsp *rsp = dev->mbx_cmd;
512 memset(cmd, 0, sizeof(*cmd));
513 ocrdma_init_mch(&cmd->req, OCRDMA_CMD_CREATE_CQ,
514 OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
516 cmd->req.rsvd_version = OCRDMA_CREATE_CQ_VER2;
517 cmd->pgsz_pgcnt = (cq->size / OCRDMA_MIN_Q_PAGE_SIZE) <<
518 OCRDMA_CREATE_CQ_PAGE_SIZE_SHIFT;
519 cmd->pgsz_pgcnt |= PAGES_4K_SPANNED(cq->va, cq->size);
521 cmd->ev_cnt_flags = OCRDMA_CREATE_CQ_DEF_FLAGS;
523 cmd->pdid_cqecnt = cq->size / sizeof(struct ocrdma_mcqe);
525 ocrdma_build_q_pages(&cmd->pa[0], cq->size / OCRDMA_MIN_Q_PAGE_SIZE,
526 cq->dma, PAGE_SIZE_4K);
527 status = be_roce_mcc_cmd(dev->nic_info.netdev,
528 cmd, sizeof(*cmd), NULL, NULL);
530 cq->id = (u16) (rsp->cq_id & OCRDMA_CREATE_CQ_RSP_CQ_ID_MASK);
536 static u32 ocrdma_encoded_q_len(int q_len)
538 u32 len_encoded = fls(q_len); /* log2(len) + 1 */
540 if (len_encoded == 16)
545 static int ocrdma_mbx_create_mq(struct ocrdma_dev *dev,
546 struct ocrdma_queue_info *mq,
547 struct ocrdma_queue_info *cq)
549 int num_pages, status;
550 struct ocrdma_create_mq_req *cmd = dev->mbx_cmd;
551 struct ocrdma_create_mq_rsp *rsp = dev->mbx_cmd;
552 struct ocrdma_pa *pa;
554 memset(cmd, 0, sizeof(*cmd));
555 num_pages = PAGES_4K_SPANNED(mq->va, mq->size);
557 ocrdma_init_mch(&cmd->req, OCRDMA_CMD_CREATE_MQ_EXT,
558 OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
559 cmd->req.rsvd_version = 1;
560 cmd->cqid_pages = num_pages;
561 cmd->cqid_pages |= (cq->id << OCRDMA_CREATE_MQ_CQ_ID_SHIFT);
562 cmd->async_cqid_valid = OCRDMA_CREATE_MQ_ASYNC_CQ_VALID;
564 cmd->async_event_bitmap = BIT(OCRDMA_ASYNC_GRP5_EVE_CODE);
565 cmd->async_event_bitmap |= BIT(OCRDMA_ASYNC_RDMA_EVE_CODE);
567 cmd->async_cqid_ringsize = cq->id;
568 cmd->async_cqid_ringsize |= (ocrdma_encoded_q_len(mq->len) <<
569 OCRDMA_CREATE_MQ_RING_SIZE_SHIFT);
570 cmd->valid = OCRDMA_CREATE_MQ_VALID;
573 ocrdma_build_q_pages(pa, num_pages, mq->dma, PAGE_SIZE_4K);
574 status = be_roce_mcc_cmd(dev->nic_info.netdev,
575 cmd, sizeof(*cmd), NULL, NULL);
583 static int ocrdma_create_mq(struct ocrdma_dev *dev)
587 /* Alloc completion queue for Mailbox queue */
588 status = ocrdma_alloc_q(dev, &dev->mq.cq, OCRDMA_MQ_CQ_LEN,
589 sizeof(struct ocrdma_mcqe));
593 dev->eq_tbl[0].cq_cnt++;
594 status = ocrdma_mbx_mq_cq_create(dev, &dev->mq.cq, &dev->eq_tbl[0].q);
598 memset(&dev->mqe_ctx, 0, sizeof(dev->mqe_ctx));
599 init_waitqueue_head(&dev->mqe_ctx.cmd_wait);
600 mutex_init(&dev->mqe_ctx.lock);
602 /* Alloc Mailbox queue */
603 status = ocrdma_alloc_q(dev, &dev->mq.sq, OCRDMA_MQ_LEN,
604 sizeof(struct ocrdma_mqe));
607 status = ocrdma_mbx_create_mq(dev, &dev->mq.sq, &dev->mq.cq);
610 ocrdma_ring_cq_db(dev, dev->mq.cq.id, true, false, 0);
614 ocrdma_free_q(dev, &dev->mq.sq);
616 ocrdma_mbx_delete_q(dev, &dev->mq.cq, QTYPE_CQ);
618 ocrdma_free_q(dev, &dev->mq.cq);
623 static void ocrdma_destroy_mq(struct ocrdma_dev *dev)
625 struct ocrdma_queue_info *mbxq, *cq;
627 /* mqe_ctx lock synchronizes with any other pending cmds. */
628 mutex_lock(&dev->mqe_ctx.lock);
631 ocrdma_mbx_delete_q(dev, mbxq, QTYPE_MCCQ);
632 ocrdma_free_q(dev, mbxq);
634 mutex_unlock(&dev->mqe_ctx.lock);
638 ocrdma_mbx_delete_q(dev, cq, QTYPE_CQ);
639 ocrdma_free_q(dev, cq);
643 static void ocrdma_process_qpcat_error(struct ocrdma_dev *dev,
644 struct ocrdma_qp *qp)
646 enum ib_qp_state new_ib_qps = IB_QPS_ERR;
647 enum ib_qp_state old_ib_qps;
651 ocrdma_qp_state_change(qp, new_ib_qps, &old_ib_qps);
654 static void ocrdma_dispatch_ibevent(struct ocrdma_dev *dev,
655 struct ocrdma_ae_mcqe *cqe)
657 struct ocrdma_qp *qp = NULL;
658 struct ocrdma_cq *cq = NULL;
659 struct ib_event ib_evt;
664 int type = (cqe->valid_ae_event & OCRDMA_AE_MCQE_EVENT_TYPE_MASK) >>
665 OCRDMA_AE_MCQE_EVENT_TYPE_SHIFT;
667 if (cqe->qpvalid_qpid & OCRDMA_AE_MCQE_QPVALID)
668 qp = dev->qp_tbl[cqe->qpvalid_qpid & OCRDMA_AE_MCQE_QPID_MASK];
669 if (cqe->cqvalid_cqid & OCRDMA_AE_MCQE_CQVALID)
670 cq = dev->cq_tbl[cqe->cqvalid_cqid & OCRDMA_AE_MCQE_CQID_MASK];
672 memset(&ib_evt, 0, sizeof(ib_evt));
674 ib_evt.device = &dev->ibdev;
677 case OCRDMA_CQ_ERROR:
678 ib_evt.element.cq = &cq->ibcq;
679 ib_evt.event = IB_EVENT_CQ_ERR;
683 case OCRDMA_CQ_OVERRUN_ERROR:
684 ib_evt.element.cq = &cq->ibcq;
685 ib_evt.event = IB_EVENT_CQ_ERR;
689 case OCRDMA_CQ_QPCAT_ERROR:
690 ib_evt.element.qp = &qp->ibqp;
691 ib_evt.event = IB_EVENT_QP_FATAL;
692 ocrdma_process_qpcat_error(dev, qp);
694 case OCRDMA_QP_ACCESS_ERROR:
695 ib_evt.element.qp = &qp->ibqp;
696 ib_evt.event = IB_EVENT_QP_ACCESS_ERR;
698 case OCRDMA_QP_COMM_EST_EVENT:
699 ib_evt.element.qp = &qp->ibqp;
700 ib_evt.event = IB_EVENT_COMM_EST;
702 case OCRDMA_SQ_DRAINED_EVENT:
703 ib_evt.element.qp = &qp->ibqp;
704 ib_evt.event = IB_EVENT_SQ_DRAINED;
706 case OCRDMA_DEVICE_FATAL_EVENT:
707 ib_evt.element.port_num = 1;
708 ib_evt.event = IB_EVENT_DEVICE_FATAL;
712 case OCRDMA_SRQCAT_ERROR:
713 ib_evt.element.srq = &qp->srq->ibsrq;
714 ib_evt.event = IB_EVENT_SRQ_ERR;
718 case OCRDMA_SRQ_LIMIT_EVENT:
719 ib_evt.element.srq = &qp->srq->ibsrq;
720 ib_evt.event = IB_EVENT_SRQ_LIMIT_REACHED;
724 case OCRDMA_QP_LAST_WQE_EVENT:
725 ib_evt.element.qp = &qp->ibqp;
726 ib_evt.event = IB_EVENT_QP_LAST_WQE_REACHED;
733 pr_err("%s() unknown type=0x%x\n", __func__, type);
737 if (type < OCRDMA_MAX_ASYNC_ERRORS)
738 atomic_inc(&dev->async_err_stats[type]);
741 if (qp->ibqp.event_handler)
742 qp->ibqp.event_handler(&ib_evt, qp->ibqp.qp_context);
743 } else if (cq_event) {
744 if (cq->ibcq.event_handler)
745 cq->ibcq.event_handler(&ib_evt, cq->ibcq.cq_context);
746 } else if (srq_event) {
747 if (qp->srq->ibsrq.event_handler)
748 qp->srq->ibsrq.event_handler(&ib_evt,
751 } else if (dev_event) {
752 pr_err("%s: Fatal event received\n", dev->ibdev.name);
753 ib_dispatch_event(&ib_evt);
758 static void ocrdma_process_grp5_aync(struct ocrdma_dev *dev,
759 struct ocrdma_ae_mcqe *cqe)
761 struct ocrdma_ae_pvid_mcqe *evt;
762 int type = (cqe->valid_ae_event & OCRDMA_AE_MCQE_EVENT_TYPE_MASK) >>
763 OCRDMA_AE_MCQE_EVENT_TYPE_SHIFT;
766 case OCRDMA_ASYNC_EVENT_PVID_STATE:
767 evt = (struct ocrdma_ae_pvid_mcqe *)cqe;
768 if ((evt->tag_enabled & OCRDMA_AE_PVID_MCQE_ENABLED_MASK) >>
769 OCRDMA_AE_PVID_MCQE_ENABLED_SHIFT)
770 dev->pvid = ((evt->tag_enabled &
771 OCRDMA_AE_PVID_MCQE_TAG_MASK) >>
772 OCRDMA_AE_PVID_MCQE_TAG_SHIFT);
775 case OCRDMA_ASYNC_EVENT_COS_VALUE:
776 atomic_set(&dev->update_sl, 1);
779 /* Not interested evts. */
784 static void ocrdma_process_acqe(struct ocrdma_dev *dev, void *ae_cqe)
786 /* async CQE processing */
787 struct ocrdma_ae_mcqe *cqe = ae_cqe;
788 u32 evt_code = (cqe->valid_ae_event & OCRDMA_AE_MCQE_EVENT_CODE_MASK) >>
789 OCRDMA_AE_MCQE_EVENT_CODE_SHIFT;
791 if (evt_code == OCRDMA_ASYNC_RDMA_EVE_CODE)
792 ocrdma_dispatch_ibevent(dev, cqe);
793 else if (evt_code == OCRDMA_ASYNC_GRP5_EVE_CODE)
794 ocrdma_process_grp5_aync(dev, cqe);
796 pr_err("%s(%d) invalid evt code=0x%x\n", __func__,
800 static void ocrdma_process_mcqe(struct ocrdma_dev *dev, struct ocrdma_mcqe *cqe)
802 if (dev->mqe_ctx.tag == cqe->tag_lo && dev->mqe_ctx.cmd_done == false) {
803 dev->mqe_ctx.cqe_status = (cqe->status &
804 OCRDMA_MCQE_STATUS_MASK) >> OCRDMA_MCQE_STATUS_SHIFT;
805 dev->mqe_ctx.ext_status =
806 (cqe->status & OCRDMA_MCQE_ESTATUS_MASK)
807 >> OCRDMA_MCQE_ESTATUS_SHIFT;
808 dev->mqe_ctx.cmd_done = true;
809 wake_up(&dev->mqe_ctx.cmd_wait);
811 pr_err("%s() cqe for invalid tag0x%x.expected=0x%x\n",
812 __func__, cqe->tag_lo, dev->mqe_ctx.tag);
815 static int ocrdma_mq_cq_handler(struct ocrdma_dev *dev, u16 cq_id)
818 struct ocrdma_mcqe *cqe;
821 cqe = ocrdma_get_mcqe(dev);
824 ocrdma_le32_to_cpu(cqe, sizeof(*cqe));
826 if (cqe->valid_ae_cmpl_cons & OCRDMA_MCQE_AE_MASK)
827 ocrdma_process_acqe(dev, cqe);
828 else if (cqe->valid_ae_cmpl_cons & OCRDMA_MCQE_CMPL_MASK)
829 ocrdma_process_mcqe(dev, cqe);
830 memset(cqe, 0, sizeof(struct ocrdma_mcqe));
831 ocrdma_mcq_inc_tail(dev);
833 ocrdma_ring_cq_db(dev, dev->mq.cq.id, true, false, cqe_popped);
837 static struct ocrdma_cq *_ocrdma_qp_buddy_cq_handler(struct ocrdma_dev *dev,
838 struct ocrdma_cq *cq, bool sq)
840 struct ocrdma_qp *qp;
841 struct list_head *cur;
842 struct ocrdma_cq *bcq = NULL;
843 struct list_head *head = sq?(&cq->sq_head):(&cq->rq_head);
845 list_for_each(cur, head) {
847 qp = list_entry(cur, struct ocrdma_qp, sq_entry);
849 qp = list_entry(cur, struct ocrdma_qp, rq_entry);
853 /* if wq and rq share the same cq, than comp_handler
854 * is already invoked.
856 if (qp->sq_cq == qp->rq_cq)
858 /* if completion came on sq, rq's cq is buddy cq.
859 * if completion came on rq, sq's cq is buddy cq.
870 static void ocrdma_qp_buddy_cq_handler(struct ocrdma_dev *dev,
871 struct ocrdma_cq *cq)
874 struct ocrdma_cq *bcq = NULL;
876 /* Go through list of QPs in error state which are using this CQ
877 * and invoke its callback handler to trigger CQE processing for
878 * error/flushed CQE. It is rare to find more than few entries in
879 * this list as most consumers stops after getting error CQE.
880 * List is traversed only once when a matching buddy cq found for a QP.
882 spin_lock_irqsave(&dev->flush_q_lock, flags);
883 /* Check if buddy CQ is present.
884 * true - Check for SQ CQ
885 * false - Check for RQ CQ
887 bcq = _ocrdma_qp_buddy_cq_handler(dev, cq, true);
889 bcq = _ocrdma_qp_buddy_cq_handler(dev, cq, false);
890 spin_unlock_irqrestore(&dev->flush_q_lock, flags);
892 /* if there is valid buddy cq, look for its completion handler */
893 if (bcq && bcq->ibcq.comp_handler) {
894 spin_lock_irqsave(&bcq->comp_handler_lock, flags);
895 (*bcq->ibcq.comp_handler) (&bcq->ibcq, bcq->ibcq.cq_context);
896 spin_unlock_irqrestore(&bcq->comp_handler_lock, flags);
900 static void ocrdma_qp_cq_handler(struct ocrdma_dev *dev, u16 cq_idx)
903 struct ocrdma_cq *cq;
905 if (cq_idx >= OCRDMA_MAX_CQ)
908 cq = dev->cq_tbl[cq_idx];
912 if (cq->ibcq.comp_handler) {
913 spin_lock_irqsave(&cq->comp_handler_lock, flags);
914 (*cq->ibcq.comp_handler) (&cq->ibcq, cq->ibcq.cq_context);
915 spin_unlock_irqrestore(&cq->comp_handler_lock, flags);
917 ocrdma_qp_buddy_cq_handler(dev, cq);
920 static void ocrdma_cq_handler(struct ocrdma_dev *dev, u16 cq_id)
922 /* process the MQ-CQE. */
923 if (cq_id == dev->mq.cq.id)
924 ocrdma_mq_cq_handler(dev, cq_id);
926 ocrdma_qp_cq_handler(dev, cq_id);
929 static irqreturn_t ocrdma_irq_handler(int irq, void *handle)
931 struct ocrdma_eq *eq = handle;
932 struct ocrdma_dev *dev = eq->dev;
933 struct ocrdma_eqe eqe;
934 struct ocrdma_eqe *ptr;
937 int budget = eq->cq_cnt;
940 ptr = ocrdma_get_eqe(eq);
942 ocrdma_le32_to_cpu(&eqe, sizeof(eqe));
943 mcode = (eqe.id_valid & OCRDMA_EQE_MAJOR_CODE_MASK)
944 >> OCRDMA_EQE_MAJOR_CODE_SHIFT;
945 if (mcode == OCRDMA_MAJOR_CODE_SENTINAL)
946 pr_err("EQ full on eqid = 0x%x, eqe = 0x%x\n",
947 eq->q.id, eqe.id_valid);
948 if ((eqe.id_valid & OCRDMA_EQE_VALID_MASK) == 0)
952 /* ring eq doorbell as soon as its consumed. */
953 ocrdma_ring_eq_db(dev, eq->q.id, false, true, 1);
954 /* check whether its CQE or not. */
955 if ((eqe.id_valid & OCRDMA_EQE_FOR_CQE_MASK) == 0) {
956 cq_id = eqe.id_valid >> OCRDMA_EQE_RESOURCE_ID_SHIFT;
957 ocrdma_cq_handler(dev, cq_id);
959 ocrdma_eq_inc_tail(eq);
961 /* There can be a stale EQE after the last bound CQ is
962 * destroyed. EQE valid and budget == 0 implies this.
969 eq->aic_obj.eq_intr_cnt++;
970 ocrdma_ring_eq_db(dev, eq->q.id, true, true, 0);
974 static void ocrdma_post_mqe(struct ocrdma_dev *dev, struct ocrdma_mqe *cmd)
976 struct ocrdma_mqe *mqe;
978 dev->mqe_ctx.tag = dev->mq.sq.head;
979 dev->mqe_ctx.cmd_done = false;
980 mqe = ocrdma_get_mqe(dev);
981 cmd->hdr.tag_lo = dev->mq.sq.head;
982 ocrdma_copy_cpu_to_le32(mqe, cmd, sizeof(*mqe));
983 /* make sure descriptor is written before ringing doorbell */
985 ocrdma_mq_inc_head(dev);
986 ocrdma_ring_mq_db(dev);
989 static int ocrdma_wait_mqe_cmpl(struct ocrdma_dev *dev)
993 status = wait_event_timeout(dev->mqe_ctx.cmd_wait,
994 (dev->mqe_ctx.cmd_done != false),
995 msecs_to_jiffies(30000));
999 dev->mqe_ctx.fw_error_state = true;
1000 pr_err("%s(%d) mailbox timeout: fw not responding\n",
1006 /* issue a mailbox command on the MQ */
1007 static int ocrdma_mbx_cmd(struct ocrdma_dev *dev, struct ocrdma_mqe *mqe)
1010 u16 cqe_status, ext_status;
1011 struct ocrdma_mqe *rsp_mqe;
1012 struct ocrdma_mbx_rsp *rsp = NULL;
1014 mutex_lock(&dev->mqe_ctx.lock);
1015 if (dev->mqe_ctx.fw_error_state)
1017 ocrdma_post_mqe(dev, mqe);
1018 status = ocrdma_wait_mqe_cmpl(dev);
1021 cqe_status = dev->mqe_ctx.cqe_status;
1022 ext_status = dev->mqe_ctx.ext_status;
1023 rsp_mqe = ocrdma_get_mqe_rsp(dev);
1024 ocrdma_copy_le32_to_cpu(mqe, rsp_mqe, (sizeof(*mqe)));
1025 if ((mqe->hdr.spcl_sge_cnt_emb & OCRDMA_MQE_HDR_EMB_MASK) >>
1026 OCRDMA_MQE_HDR_EMB_SHIFT)
1029 if (cqe_status || ext_status) {
1030 pr_err("%s() cqe_status=0x%x, ext_status=0x%x,",
1031 __func__, cqe_status, ext_status);
1033 /* This is for embedded cmds. */
1034 pr_err("opcode=0x%x, subsystem=0x%x\n",
1035 (rsp->subsys_op & OCRDMA_MBX_RSP_OPCODE_MASK) >>
1036 OCRDMA_MBX_RSP_OPCODE_SHIFT,
1037 (rsp->subsys_op & OCRDMA_MBX_RSP_SUBSYS_MASK) >>
1038 OCRDMA_MBX_RSP_SUBSYS_SHIFT);
1040 status = ocrdma_get_mbx_cqe_errno(cqe_status);
1043 /* For non embedded, rsp errors are handled in ocrdma_nonemb_mbx_cmd */
1044 if (rsp && (mqe->u.rsp.status & OCRDMA_MBX_RSP_STATUS_MASK))
1045 status = ocrdma_get_mbx_errno(mqe->u.rsp.status);
1047 mutex_unlock(&dev->mqe_ctx.lock);
1051 static int ocrdma_nonemb_mbx_cmd(struct ocrdma_dev *dev, struct ocrdma_mqe *mqe,
1055 struct ocrdma_mbx_rsp *rsp = payload_va;
1057 if ((mqe->hdr.spcl_sge_cnt_emb & OCRDMA_MQE_HDR_EMB_MASK) >>
1058 OCRDMA_MQE_HDR_EMB_SHIFT)
1061 status = ocrdma_mbx_cmd(dev, mqe);
1063 /* For non embedded, only CQE failures are handled in
1064 * ocrdma_mbx_cmd. We need to check for RSP errors.
1066 if (rsp->status & OCRDMA_MBX_RSP_STATUS_MASK)
1067 status = ocrdma_get_mbx_errno(rsp->status);
1070 pr_err("opcode=0x%x, subsystem=0x%x\n",
1071 (rsp->subsys_op & OCRDMA_MBX_RSP_OPCODE_MASK) >>
1072 OCRDMA_MBX_RSP_OPCODE_SHIFT,
1073 (rsp->subsys_op & OCRDMA_MBX_RSP_SUBSYS_MASK) >>
1074 OCRDMA_MBX_RSP_SUBSYS_SHIFT);
1078 static void ocrdma_get_attr(struct ocrdma_dev *dev,
1079 struct ocrdma_dev_attr *attr,
1080 struct ocrdma_mbx_query_config *rsp)
1083 (rsp->max_pd_ca_ack_delay & OCRDMA_MBX_QUERY_CFG_MAX_PD_MASK) >>
1084 OCRDMA_MBX_QUERY_CFG_MAX_PD_SHIFT;
1086 (rsp->max_dpp_pds_credits & OCRDMA_MBX_QUERY_CFG_MAX_DPP_PDS_MASK) >>
1087 OCRDMA_MBX_QUERY_CFG_MAX_DPP_PDS_OFFSET;
1089 (rsp->qp_srq_cq_ird_ord & OCRDMA_MBX_QUERY_CFG_MAX_QP_MASK) >>
1090 OCRDMA_MBX_QUERY_CFG_MAX_QP_SHIFT;
1092 (rsp->max_srq_rpir_qps & OCRDMA_MBX_QUERY_CFG_MAX_SRQ_MASK) >>
1093 OCRDMA_MBX_QUERY_CFG_MAX_SRQ_OFFSET;
1094 attr->max_send_sge = ((rsp->max_write_send_sge &
1095 OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_MASK) >>
1096 OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_SHIFT);
1097 attr->max_recv_sge = (rsp->max_write_send_sge &
1098 OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_MASK) >>
1099 OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_SHIFT;
1100 attr->max_srq_sge = (rsp->max_srq_rqe_sge &
1101 OCRDMA_MBX_QUERY_CFG_MAX_SRQ_SGE_MASK) >>
1102 OCRDMA_MBX_QUERY_CFG_MAX_SRQ_SGE_OFFSET;
1103 attr->max_rdma_sge = (rsp->max_write_send_sge &
1104 OCRDMA_MBX_QUERY_CFG_MAX_WRITE_SGE_MASK) >>
1105 OCRDMA_MBX_QUERY_CFG_MAX_WRITE_SGE_SHIFT;
1106 attr->max_ord_per_qp = (rsp->max_ird_ord_per_qp &
1107 OCRDMA_MBX_QUERY_CFG_MAX_ORD_PER_QP_MASK) >>
1108 OCRDMA_MBX_QUERY_CFG_MAX_ORD_PER_QP_SHIFT;
1109 attr->max_ird_per_qp = (rsp->max_ird_ord_per_qp &
1110 OCRDMA_MBX_QUERY_CFG_MAX_IRD_PER_QP_MASK) >>
1111 OCRDMA_MBX_QUERY_CFG_MAX_IRD_PER_QP_SHIFT;
1112 attr->cq_overflow_detect = (rsp->qp_srq_cq_ird_ord &
1113 OCRDMA_MBX_QUERY_CFG_CQ_OVERFLOW_MASK) >>
1114 OCRDMA_MBX_QUERY_CFG_CQ_OVERFLOW_SHIFT;
1115 attr->srq_supported = (rsp->qp_srq_cq_ird_ord &
1116 OCRDMA_MBX_QUERY_CFG_SRQ_SUPPORTED_MASK) >>
1117 OCRDMA_MBX_QUERY_CFG_SRQ_SUPPORTED_SHIFT;
1118 attr->local_ca_ack_delay = (rsp->max_pd_ca_ack_delay &
1119 OCRDMA_MBX_QUERY_CFG_CA_ACK_DELAY_MASK) >>
1120 OCRDMA_MBX_QUERY_CFG_CA_ACK_DELAY_SHIFT;
1121 attr->max_mw = rsp->max_mw;
1122 attr->max_mr = rsp->max_mr;
1123 attr->max_mr_size = ((u64)rsp->max_mr_size_hi << 32) |
1124 rsp->max_mr_size_lo;
1126 attr->max_pages_per_frmr = rsp->max_pages_per_frmr;
1127 attr->max_num_mr_pbl = rsp->max_num_mr_pbl;
1128 attr->max_cqe = rsp->max_cq_cqes_per_cq &
1129 OCRDMA_MBX_QUERY_CFG_MAX_CQES_PER_CQ_MASK;
1130 attr->max_cq = (rsp->max_cq_cqes_per_cq &
1131 OCRDMA_MBX_QUERY_CFG_MAX_CQ_MASK) >>
1132 OCRDMA_MBX_QUERY_CFG_MAX_CQ_OFFSET;
1133 attr->wqe_size = ((rsp->wqe_rqe_stride_max_dpp_cqs &
1134 OCRDMA_MBX_QUERY_CFG_MAX_WQE_SIZE_MASK) >>
1135 OCRDMA_MBX_QUERY_CFG_MAX_WQE_SIZE_OFFSET) *
1137 attr->rqe_size = ((rsp->wqe_rqe_stride_max_dpp_cqs &
1138 OCRDMA_MBX_QUERY_CFG_MAX_RQE_SIZE_MASK) >>
1139 OCRDMA_MBX_QUERY_CFG_MAX_RQE_SIZE_OFFSET) *
1141 attr->max_inline_data =
1142 attr->wqe_size - (sizeof(struct ocrdma_hdr_wqe) +
1143 sizeof(struct ocrdma_sge));
1144 if (ocrdma_get_asic_type(dev) == OCRDMA_ASIC_GEN_SKH_R) {
1146 attr->ird_page_size = OCRDMA_MIN_Q_PAGE_SIZE;
1147 attr->num_ird_pages = MAX_OCRDMA_IRD_PAGES;
1149 dev->attr.max_wqe = rsp->max_wqes_rqes_per_q >>
1150 OCRDMA_MBX_QUERY_CFG_MAX_WQES_PER_WQ_OFFSET;
1151 dev->attr.max_rqe = rsp->max_wqes_rqes_per_q &
1152 OCRDMA_MBX_QUERY_CFG_MAX_RQES_PER_RQ_MASK;
1155 static int ocrdma_check_fw_config(struct ocrdma_dev *dev,
1156 struct ocrdma_fw_conf_rsp *conf)
1160 fn_mode = conf->fn_mode & OCRDMA_FN_MODE_RDMA;
1161 if (fn_mode != OCRDMA_FN_MODE_RDMA)
1163 dev->base_eqid = conf->base_eqid;
1164 dev->max_eq = conf->max_eq;
1168 /* can be issued only during init time. */
1169 static int ocrdma_mbx_query_fw_ver(struct ocrdma_dev *dev)
1171 int status = -ENOMEM;
1172 struct ocrdma_mqe *cmd;
1173 struct ocrdma_fw_ver_rsp *rsp;
1175 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_GET_FW_VER, sizeof(*cmd));
1178 ocrdma_init_mch((struct ocrdma_mbx_hdr *)&cmd->u.cmd[0],
1179 OCRDMA_CMD_GET_FW_VER,
1180 OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
1182 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1185 rsp = (struct ocrdma_fw_ver_rsp *)cmd;
1186 memset(&dev->attr.fw_ver[0], 0, sizeof(dev->attr.fw_ver));
1187 memcpy(&dev->attr.fw_ver[0], &rsp->running_ver[0],
1188 sizeof(rsp->running_ver));
1189 ocrdma_le32_to_cpu(dev->attr.fw_ver, sizeof(rsp->running_ver));
1195 /* can be issued only during init time. */
1196 static int ocrdma_mbx_query_fw_config(struct ocrdma_dev *dev)
1198 int status = -ENOMEM;
1199 struct ocrdma_mqe *cmd;
1200 struct ocrdma_fw_conf_rsp *rsp;
1202 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_GET_FW_CONFIG, sizeof(*cmd));
1205 ocrdma_init_mch((struct ocrdma_mbx_hdr *)&cmd->u.cmd[0],
1206 OCRDMA_CMD_GET_FW_CONFIG,
1207 OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
1208 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1211 rsp = (struct ocrdma_fw_conf_rsp *)cmd;
1212 status = ocrdma_check_fw_config(dev, rsp);
1218 int ocrdma_mbx_rdma_stats(struct ocrdma_dev *dev, bool reset)
1220 struct ocrdma_rdma_stats_req *req = dev->stats_mem.va;
1221 struct ocrdma_mqe *mqe = &dev->stats_mem.mqe;
1222 struct ocrdma_rdma_stats_resp *old_stats;
1225 old_stats = kmalloc(sizeof(*old_stats), GFP_KERNEL);
1226 if (old_stats == NULL)
1229 memset(mqe, 0, sizeof(*mqe));
1230 mqe->hdr.pyld_len = dev->stats_mem.size;
1231 mqe->hdr.spcl_sge_cnt_emb |=
1232 (1 << OCRDMA_MQE_HDR_SGE_CNT_SHIFT) &
1233 OCRDMA_MQE_HDR_SGE_CNT_MASK;
1234 mqe->u.nonemb_req.sge[0].pa_lo = (u32) (dev->stats_mem.pa & 0xffffffff);
1235 mqe->u.nonemb_req.sge[0].pa_hi = (u32) upper_32_bits(dev->stats_mem.pa);
1236 mqe->u.nonemb_req.sge[0].len = dev->stats_mem.size;
1238 /* Cache the old stats */
1239 memcpy(old_stats, req, sizeof(struct ocrdma_rdma_stats_resp));
1240 memset(req, 0, dev->stats_mem.size);
1242 ocrdma_init_mch((struct ocrdma_mbx_hdr *)req,
1243 OCRDMA_CMD_GET_RDMA_STATS,
1245 dev->stats_mem.size);
1247 req->reset_stats = reset;
1249 status = ocrdma_nonemb_mbx_cmd(dev, mqe, dev->stats_mem.va);
1251 /* Copy from cache, if mbox fails */
1252 memcpy(req, old_stats, sizeof(struct ocrdma_rdma_stats_resp));
1254 ocrdma_le32_to_cpu(req, dev->stats_mem.size);
1260 static int ocrdma_mbx_get_ctrl_attribs(struct ocrdma_dev *dev)
1262 int status = -ENOMEM;
1263 struct ocrdma_dma_mem dma;
1264 struct ocrdma_mqe *mqe;
1265 struct ocrdma_get_ctrl_attribs_rsp *ctrl_attr_rsp;
1266 struct mgmt_hba_attribs *hba_attribs;
1268 mqe = kzalloc(sizeof(struct ocrdma_mqe), GFP_KERNEL);
1272 dma.size = sizeof(struct ocrdma_get_ctrl_attribs_rsp);
1273 dma.va = dma_alloc_coherent(&dev->nic_info.pdev->dev,
1274 dma.size, &dma.pa, GFP_KERNEL);
1278 mqe->hdr.pyld_len = dma.size;
1279 mqe->hdr.spcl_sge_cnt_emb |=
1280 (1 << OCRDMA_MQE_HDR_SGE_CNT_SHIFT) &
1281 OCRDMA_MQE_HDR_SGE_CNT_MASK;
1282 mqe->u.nonemb_req.sge[0].pa_lo = (u32) (dma.pa & 0xffffffff);
1283 mqe->u.nonemb_req.sge[0].pa_hi = (u32) upper_32_bits(dma.pa);
1284 mqe->u.nonemb_req.sge[0].len = dma.size;
1286 memset(dma.va, 0, dma.size);
1287 ocrdma_init_mch((struct ocrdma_mbx_hdr *)dma.va,
1288 OCRDMA_CMD_GET_CTRL_ATTRIBUTES,
1289 OCRDMA_SUBSYS_COMMON,
1292 status = ocrdma_nonemb_mbx_cmd(dev, mqe, dma.va);
1294 ctrl_attr_rsp = (struct ocrdma_get_ctrl_attribs_rsp *)dma.va;
1295 hba_attribs = &ctrl_attr_rsp->ctrl_attribs.hba_attribs;
1297 dev->hba_port_num = (hba_attribs->ptpnum_maxdoms_hbast_cv &
1298 OCRDMA_HBA_ATTRB_PTNUM_MASK)
1299 >> OCRDMA_HBA_ATTRB_PTNUM_SHIFT;
1300 strncpy(dev->model_number,
1301 hba_attribs->controller_model_number, 31);
1303 dma_free_coherent(&dev->nic_info.pdev->dev, dma.size, dma.va, dma.pa);
1309 static int ocrdma_mbx_query_dev(struct ocrdma_dev *dev)
1311 int status = -ENOMEM;
1312 struct ocrdma_mbx_query_config *rsp;
1313 struct ocrdma_mqe *cmd;
1315 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_QUERY_CONFIG, sizeof(*cmd));
1318 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1321 rsp = (struct ocrdma_mbx_query_config *)cmd;
1322 ocrdma_get_attr(dev, &dev->attr, rsp);
1328 int ocrdma_mbx_get_link_speed(struct ocrdma_dev *dev, u8 *lnk_speed)
1330 int status = -ENOMEM;
1331 struct ocrdma_get_link_speed_rsp *rsp;
1332 struct ocrdma_mqe *cmd;
1334 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_QUERY_NTWK_LINK_CONFIG_V1,
1338 ocrdma_init_mch((struct ocrdma_mbx_hdr *)&cmd->u.cmd[0],
1339 OCRDMA_CMD_QUERY_NTWK_LINK_CONFIG_V1,
1340 OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
1342 ((struct ocrdma_mbx_hdr *)cmd->u.cmd)->rsvd_version = 0x1;
1344 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1348 rsp = (struct ocrdma_get_link_speed_rsp *)cmd;
1349 *lnk_speed = (rsp->pflt_pps_ld_pnum & OCRDMA_PHY_PS_MASK)
1350 >> OCRDMA_PHY_PS_SHIFT;
1357 static int ocrdma_mbx_get_phy_info(struct ocrdma_dev *dev)
1359 int status = -ENOMEM;
1360 struct ocrdma_mqe *cmd;
1361 struct ocrdma_get_phy_info_rsp *rsp;
1363 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_PHY_DETAILS, sizeof(*cmd));
1367 ocrdma_init_mch((struct ocrdma_mbx_hdr *)&cmd->u.cmd[0],
1368 OCRDMA_CMD_PHY_DETAILS, OCRDMA_SUBSYS_COMMON,
1371 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1375 rsp = (struct ocrdma_get_phy_info_rsp *)cmd;
1377 (rsp->ityp_ptyp & OCRDMA_PHY_TYPE_MASK);
1378 dev->phy.interface_type =
1379 (rsp->ityp_ptyp & OCRDMA_IF_TYPE_MASK)
1380 >> OCRDMA_IF_TYPE_SHIFT;
1381 dev->phy.auto_speeds_supported =
1382 (rsp->fspeed_aspeed & OCRDMA_ASPEED_SUPP_MASK);
1383 dev->phy.fixed_speeds_supported =
1384 (rsp->fspeed_aspeed & OCRDMA_FSPEED_SUPP_MASK)
1385 >> OCRDMA_FSPEED_SUPP_SHIFT;
1391 int ocrdma_mbx_alloc_pd(struct ocrdma_dev *dev, struct ocrdma_pd *pd)
1393 int status = -ENOMEM;
1394 struct ocrdma_alloc_pd *cmd;
1395 struct ocrdma_alloc_pd_rsp *rsp;
1397 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_ALLOC_PD, sizeof(*cmd));
1400 if (pd->dpp_enabled)
1401 cmd->enable_dpp_rsvd |= OCRDMA_ALLOC_PD_ENABLE_DPP;
1402 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1405 rsp = (struct ocrdma_alloc_pd_rsp *)cmd;
1406 pd->id = rsp->dpp_page_pdid & OCRDMA_ALLOC_PD_RSP_PDID_MASK;
1407 if (rsp->dpp_page_pdid & OCRDMA_ALLOC_PD_RSP_DPP) {
1408 pd->dpp_enabled = true;
1409 pd->dpp_page = rsp->dpp_page_pdid >>
1410 OCRDMA_ALLOC_PD_RSP_DPP_PAGE_SHIFT;
1412 pd->dpp_enabled = false;
1420 int ocrdma_mbx_dealloc_pd(struct ocrdma_dev *dev, struct ocrdma_pd *pd)
1422 int status = -ENOMEM;
1423 struct ocrdma_dealloc_pd *cmd;
1425 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DEALLOC_PD, sizeof(*cmd));
1429 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1435 static int ocrdma_mbx_alloc_pd_range(struct ocrdma_dev *dev)
1437 int status = -ENOMEM;
1438 size_t pd_bitmap_size;
1439 struct ocrdma_alloc_pd_range *cmd;
1440 struct ocrdma_alloc_pd_range_rsp *rsp;
1442 /* Pre allocate the DPP PDs */
1443 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_ALLOC_PD_RANGE, sizeof(*cmd));
1446 cmd->pd_count = dev->attr.max_dpp_pds;
1447 cmd->enable_dpp_rsvd |= OCRDMA_ALLOC_PD_ENABLE_DPP;
1448 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1451 rsp = (struct ocrdma_alloc_pd_range_rsp *)cmd;
1453 if ((rsp->dpp_page_pdid & OCRDMA_ALLOC_PD_RSP_DPP) && rsp->pd_count) {
1454 dev->pd_mgr->dpp_page_index = rsp->dpp_page_pdid >>
1455 OCRDMA_ALLOC_PD_RSP_DPP_PAGE_SHIFT;
1456 dev->pd_mgr->pd_dpp_start = rsp->dpp_page_pdid &
1457 OCRDMA_ALLOC_PD_RNG_RSP_START_PDID_MASK;
1458 dev->pd_mgr->max_dpp_pd = rsp->pd_count;
1459 pd_bitmap_size = BITS_TO_LONGS(rsp->pd_count) * sizeof(long);
1460 dev->pd_mgr->pd_dpp_bitmap = kzalloc(pd_bitmap_size,
1465 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_ALLOC_PD_RANGE, sizeof(*cmd));
1469 cmd->pd_count = dev->attr.max_pd - dev->attr.max_dpp_pds;
1470 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1473 rsp = (struct ocrdma_alloc_pd_range_rsp *)cmd;
1474 if (rsp->pd_count) {
1475 dev->pd_mgr->pd_norm_start = rsp->dpp_page_pdid &
1476 OCRDMA_ALLOC_PD_RNG_RSP_START_PDID_MASK;
1477 dev->pd_mgr->max_normal_pd = rsp->pd_count;
1478 pd_bitmap_size = BITS_TO_LONGS(rsp->pd_count) * sizeof(long);
1479 dev->pd_mgr->pd_norm_bitmap = kzalloc(pd_bitmap_size,
1483 if (dev->pd_mgr->pd_norm_bitmap || dev->pd_mgr->pd_dpp_bitmap) {
1484 /* Enable PD resource manager */
1485 dev->pd_mgr->pd_prealloc_valid = true;
1494 static void ocrdma_mbx_dealloc_pd_range(struct ocrdma_dev *dev)
1496 struct ocrdma_dealloc_pd_range *cmd;
1498 /* return normal PDs to firmware */
1499 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DEALLOC_PD_RANGE, sizeof(*cmd));
1503 if (dev->pd_mgr->max_normal_pd) {
1504 cmd->start_pd_id = dev->pd_mgr->pd_norm_start;
1505 cmd->pd_count = dev->pd_mgr->max_normal_pd;
1506 ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1509 if (dev->pd_mgr->max_dpp_pd) {
1511 /* return DPP PDs to firmware */
1512 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DEALLOC_PD_RANGE,
1517 cmd->start_pd_id = dev->pd_mgr->pd_dpp_start;
1518 cmd->pd_count = dev->pd_mgr->max_dpp_pd;
1519 ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1525 void ocrdma_alloc_pd_pool(struct ocrdma_dev *dev)
1529 dev->pd_mgr = kzalloc(sizeof(struct ocrdma_pd_resource_mgr),
1532 pr_err("%s(%d)Memory allocation failure.\n", __func__, dev->id);
1535 status = ocrdma_mbx_alloc_pd_range(dev);
1537 pr_err("%s(%d) Unable to initialize PD pool, using default.\n",
1542 static void ocrdma_free_pd_pool(struct ocrdma_dev *dev)
1544 ocrdma_mbx_dealloc_pd_range(dev);
1545 kfree(dev->pd_mgr->pd_norm_bitmap);
1546 kfree(dev->pd_mgr->pd_dpp_bitmap);
1550 static int ocrdma_build_q_conf(u32 *num_entries, int entry_size,
1551 int *num_pages, int *page_size)
1556 *num_entries = roundup_pow_of_two(*num_entries);
1557 mem_size = *num_entries * entry_size;
1558 /* find the possible lowest possible multiplier */
1559 for (i = 0; i < OCRDMA_MAX_Q_PAGE_SIZE_CNT; i++) {
1560 if (mem_size <= (OCRDMA_Q_PAGE_BASE_SIZE << i))
1563 if (i >= OCRDMA_MAX_Q_PAGE_SIZE_CNT)
1565 mem_size = roundup(mem_size,
1566 ((OCRDMA_Q_PAGE_BASE_SIZE << i) / OCRDMA_MAX_Q_PAGES));
1568 mem_size / ((OCRDMA_Q_PAGE_BASE_SIZE << i) / OCRDMA_MAX_Q_PAGES);
1569 *page_size = ((OCRDMA_Q_PAGE_BASE_SIZE << i) / OCRDMA_MAX_Q_PAGES);
1570 *num_entries = mem_size / entry_size;
1574 static int ocrdma_mbx_create_ah_tbl(struct ocrdma_dev *dev)
1579 struct ocrdma_create_ah_tbl *cmd;
1580 struct ocrdma_create_ah_tbl_rsp *rsp;
1581 struct pci_dev *pdev = dev->nic_info.pdev;
1583 struct ocrdma_pbe *pbes;
1585 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_AH_TBL, sizeof(*cmd));
1589 max_ah = OCRDMA_MAX_AH;
1590 dev->av_tbl.size = sizeof(struct ocrdma_av) * max_ah;
1592 /* number of PBEs in PBL */
1593 cmd->ah_conf = (OCRDMA_AH_TBL_PAGES <<
1594 OCRDMA_CREATE_AH_NUM_PAGES_SHIFT) &
1595 OCRDMA_CREATE_AH_NUM_PAGES_MASK;
1598 for (i = 0; i < OCRDMA_MAX_Q_PAGE_SIZE_CNT; i++) {
1599 if (PAGE_SIZE == (OCRDMA_MIN_Q_PAGE_SIZE << i))
1602 cmd->ah_conf |= (i << OCRDMA_CREATE_AH_PAGE_SIZE_SHIFT) &
1603 OCRDMA_CREATE_AH_PAGE_SIZE_MASK;
1606 cmd->ah_conf |= (sizeof(struct ocrdma_av) <<
1607 OCRDMA_CREATE_AH_ENTRY_SIZE_SHIFT) &
1608 OCRDMA_CREATE_AH_ENTRY_SIZE_MASK;
1610 dev->av_tbl.pbl.va = dma_alloc_coherent(&pdev->dev, PAGE_SIZE,
1611 &dev->av_tbl.pbl.pa,
1613 if (dev->av_tbl.pbl.va == NULL)
1616 dev->av_tbl.va = dma_alloc_coherent(&pdev->dev, dev->av_tbl.size,
1618 if (dev->av_tbl.va == NULL)
1620 dev->av_tbl.pa = pa;
1621 dev->av_tbl.num_ah = max_ah;
1622 memset(dev->av_tbl.va, 0, dev->av_tbl.size);
1624 pbes = (struct ocrdma_pbe *)dev->av_tbl.pbl.va;
1625 for (i = 0; i < dev->av_tbl.size / OCRDMA_MIN_Q_PAGE_SIZE; i++) {
1626 pbes[i].pa_lo = (u32)cpu_to_le32(pa & 0xffffffff);
1627 pbes[i].pa_hi = (u32)cpu_to_le32(upper_32_bits(pa));
1630 cmd->tbl_addr[0].lo = (u32)(dev->av_tbl.pbl.pa & 0xFFFFFFFF);
1631 cmd->tbl_addr[0].hi = (u32)upper_32_bits(dev->av_tbl.pbl.pa);
1632 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1635 rsp = (struct ocrdma_create_ah_tbl_rsp *)cmd;
1636 dev->av_tbl.ahid = rsp->ahid & 0xFFFF;
1641 dma_free_coherent(&pdev->dev, dev->av_tbl.size, dev->av_tbl.va,
1643 dev->av_tbl.va = NULL;
1645 dma_free_coherent(&pdev->dev, PAGE_SIZE, dev->av_tbl.pbl.va,
1646 dev->av_tbl.pbl.pa);
1647 dev->av_tbl.pbl.va = NULL;
1648 dev->av_tbl.size = 0;
1654 static void ocrdma_mbx_delete_ah_tbl(struct ocrdma_dev *dev)
1656 struct ocrdma_delete_ah_tbl *cmd;
1657 struct pci_dev *pdev = dev->nic_info.pdev;
1659 if (dev->av_tbl.va == NULL)
1662 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DELETE_AH_TBL, sizeof(*cmd));
1665 cmd->ahid = dev->av_tbl.ahid;
1667 ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1668 dma_free_coherent(&pdev->dev, dev->av_tbl.size, dev->av_tbl.va,
1670 dev->av_tbl.va = NULL;
1671 dma_free_coherent(&pdev->dev, PAGE_SIZE, dev->av_tbl.pbl.va,
1672 dev->av_tbl.pbl.pa);
1676 /* Multiple CQs uses the EQ. This routine returns least used
1677 * EQ to associate with CQ. This will distributes the interrupt
1678 * processing and CPU load to associated EQ, vector and so to that CPU.
1680 static u16 ocrdma_bind_eq(struct ocrdma_dev *dev)
1682 int i, selected_eq = 0, cq_cnt = 0;
1685 mutex_lock(&dev->dev_lock);
1686 cq_cnt = dev->eq_tbl[0].cq_cnt;
1687 eq_id = dev->eq_tbl[0].q.id;
1688 /* find the EQ which is has the least number of
1689 * CQs associated with it.
1691 for (i = 0; i < dev->eq_cnt; i++) {
1692 if (dev->eq_tbl[i].cq_cnt < cq_cnt) {
1693 cq_cnt = dev->eq_tbl[i].cq_cnt;
1694 eq_id = dev->eq_tbl[i].q.id;
1698 dev->eq_tbl[selected_eq].cq_cnt += 1;
1699 mutex_unlock(&dev->dev_lock);
1703 static void ocrdma_unbind_eq(struct ocrdma_dev *dev, u16 eq_id)
1707 mutex_lock(&dev->dev_lock);
1708 i = ocrdma_get_eq_table_index(dev, eq_id);
1711 dev->eq_tbl[i].cq_cnt -= 1;
1712 mutex_unlock(&dev->dev_lock);
1715 int ocrdma_mbx_create_cq(struct ocrdma_dev *dev, struct ocrdma_cq *cq,
1716 int entries, int dpp_cq, u16 pd_id)
1718 int status = -ENOMEM; int max_hw_cqe;
1719 struct pci_dev *pdev = dev->nic_info.pdev;
1720 struct ocrdma_create_cq *cmd;
1721 struct ocrdma_create_cq_rsp *rsp;
1722 u32 hw_pages, cqe_size, page_size, cqe_count;
1724 if (entries > dev->attr.max_cqe) {
1725 pr_err("%s(%d) max_cqe=0x%x, requester_cqe=0x%x\n",
1726 __func__, dev->id, dev->attr.max_cqe, entries);
1729 if (dpp_cq && (ocrdma_get_asic_type(dev) != OCRDMA_ASIC_GEN_SKH_R))
1735 cqe_size = OCRDMA_DPP_CQE_SIZE;
1738 cq->max_hw_cqe = dev->attr.max_cqe;
1739 max_hw_cqe = dev->attr.max_cqe;
1740 cqe_size = sizeof(struct ocrdma_cqe);
1741 hw_pages = OCRDMA_CREATE_CQ_MAX_PAGES;
1744 cq->len = roundup(max_hw_cqe * cqe_size, OCRDMA_MIN_Q_PAGE_SIZE);
1746 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_CQ, sizeof(*cmd));
1749 ocrdma_init_mch(&cmd->cmd.req, OCRDMA_CMD_CREATE_CQ,
1750 OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
1751 cq->va = dma_alloc_coherent(&pdev->dev, cq->len, &cq->pa, GFP_KERNEL);
1756 memset(cq->va, 0, cq->len);
1757 page_size = cq->len / hw_pages;
1758 cmd->cmd.pgsz_pgcnt = (page_size / OCRDMA_MIN_Q_PAGE_SIZE) <<
1759 OCRDMA_CREATE_CQ_PAGE_SIZE_SHIFT;
1760 cmd->cmd.pgsz_pgcnt |= hw_pages;
1761 cmd->cmd.ev_cnt_flags = OCRDMA_CREATE_CQ_DEF_FLAGS;
1763 cq->eqn = ocrdma_bind_eq(dev);
1764 cmd->cmd.req.rsvd_version = OCRDMA_CREATE_CQ_VER3;
1765 cqe_count = cq->len / cqe_size;
1766 cq->cqe_cnt = cqe_count;
1767 if (cqe_count > 1024) {
1768 /* Set cnt to 3 to indicate more than 1024 cq entries */
1769 cmd->cmd.ev_cnt_flags |= (0x3 << OCRDMA_CREATE_CQ_CNT_SHIFT);
1772 switch (cqe_count) {
1785 cmd->cmd.ev_cnt_flags |= (count << OCRDMA_CREATE_CQ_CNT_SHIFT);
1787 /* shared eq between all the consumer cqs. */
1788 cmd->cmd.eqn = cq->eqn;
1789 if (ocrdma_get_asic_type(dev) == OCRDMA_ASIC_GEN_SKH_R) {
1791 cmd->cmd.pgsz_pgcnt |= OCRDMA_CREATE_CQ_DPP <<
1792 OCRDMA_CREATE_CQ_TYPE_SHIFT;
1793 cq->phase_change = false;
1794 cmd->cmd.pdid_cqecnt = (cq->len / cqe_size);
1796 cmd->cmd.pdid_cqecnt = (cq->len / cqe_size) - 1;
1797 cmd->cmd.ev_cnt_flags |= OCRDMA_CREATE_CQ_FLAGS_AUTO_VALID;
1798 cq->phase_change = true;
1801 /* pd_id valid only for v3 */
1802 cmd->cmd.pdid_cqecnt |= (pd_id <<
1803 OCRDMA_CREATE_CQ_CMD_PDID_SHIFT);
1804 ocrdma_build_q_pages(&cmd->cmd.pa[0], hw_pages, cq->pa, page_size);
1805 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1809 rsp = (struct ocrdma_create_cq_rsp *)cmd;
1810 cq->id = (u16) (rsp->rsp.cq_id & OCRDMA_CREATE_CQ_RSP_CQ_ID_MASK);
1814 ocrdma_unbind_eq(dev, cq->eqn);
1815 dma_free_coherent(&pdev->dev, cq->len, cq->va, cq->pa);
1821 int ocrdma_mbx_destroy_cq(struct ocrdma_dev *dev, struct ocrdma_cq *cq)
1823 int status = -ENOMEM;
1824 struct ocrdma_destroy_cq *cmd;
1826 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DELETE_CQ, sizeof(*cmd));
1829 ocrdma_init_mch(&cmd->req, OCRDMA_CMD_DELETE_CQ,
1830 OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
1832 cmd->bypass_flush_qid |=
1833 (cq->id << OCRDMA_DESTROY_CQ_QID_SHIFT) &
1834 OCRDMA_DESTROY_CQ_QID_MASK;
1836 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1837 ocrdma_unbind_eq(dev, cq->eqn);
1838 dma_free_coherent(&dev->nic_info.pdev->dev, cq->len, cq->va, cq->pa);
1843 int ocrdma_mbx_alloc_lkey(struct ocrdma_dev *dev, struct ocrdma_hw_mr *hwmr,
1844 u32 pdid, int addr_check)
1846 int status = -ENOMEM;
1847 struct ocrdma_alloc_lkey *cmd;
1848 struct ocrdma_alloc_lkey_rsp *rsp;
1850 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_ALLOC_LKEY, sizeof(*cmd));
1854 cmd->pbl_sz_flags |= addr_check;
1855 cmd->pbl_sz_flags |= (hwmr->fr_mr << OCRDMA_ALLOC_LKEY_FMR_SHIFT);
1856 cmd->pbl_sz_flags |=
1857 (hwmr->remote_wr << OCRDMA_ALLOC_LKEY_REMOTE_WR_SHIFT);
1858 cmd->pbl_sz_flags |=
1859 (hwmr->remote_rd << OCRDMA_ALLOC_LKEY_REMOTE_RD_SHIFT);
1860 cmd->pbl_sz_flags |=
1861 (hwmr->local_wr << OCRDMA_ALLOC_LKEY_LOCAL_WR_SHIFT);
1862 cmd->pbl_sz_flags |=
1863 (hwmr->remote_atomic << OCRDMA_ALLOC_LKEY_REMOTE_ATOMIC_SHIFT);
1864 cmd->pbl_sz_flags |=
1865 (hwmr->num_pbls << OCRDMA_ALLOC_LKEY_PBL_SIZE_SHIFT);
1867 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1870 rsp = (struct ocrdma_alloc_lkey_rsp *)cmd;
1871 hwmr->lkey = rsp->lrkey;
1877 int ocrdma_mbx_dealloc_lkey(struct ocrdma_dev *dev, int fr_mr, u32 lkey)
1879 int status = -ENOMEM;
1880 struct ocrdma_dealloc_lkey *cmd;
1882 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DEALLOC_LKEY, sizeof(*cmd));
1886 cmd->rsvd_frmr = fr_mr ? 1 : 0;
1887 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1895 static int ocrdma_mbx_reg_mr(struct ocrdma_dev *dev, struct ocrdma_hw_mr *hwmr,
1896 u32 pdid, u32 pbl_cnt, u32 pbe_size, u32 last)
1898 int status = -ENOMEM;
1900 struct ocrdma_reg_nsmr *cmd;
1901 struct ocrdma_reg_nsmr_rsp *rsp;
1903 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_REGISTER_NSMR, sizeof(*cmd));
1907 pdid | (hwmr->num_pbls << OCRDMA_REG_NSMR_NUM_PBL_SHIFT);
1908 cmd->fr_mr = hwmr->fr_mr;
1910 cmd->flags_hpage_pbe_sz |= (hwmr->remote_wr <<
1911 OCRDMA_REG_NSMR_REMOTE_WR_SHIFT);
1912 cmd->flags_hpage_pbe_sz |= (hwmr->remote_rd <<
1913 OCRDMA_REG_NSMR_REMOTE_RD_SHIFT);
1914 cmd->flags_hpage_pbe_sz |= (hwmr->local_wr <<
1915 OCRDMA_REG_NSMR_LOCAL_WR_SHIFT);
1916 cmd->flags_hpage_pbe_sz |= (hwmr->remote_atomic <<
1917 OCRDMA_REG_NSMR_REMOTE_ATOMIC_SHIFT);
1918 cmd->flags_hpage_pbe_sz |= (hwmr->mw_bind <<
1919 OCRDMA_REG_NSMR_BIND_MEMWIN_SHIFT);
1920 cmd->flags_hpage_pbe_sz |= (last << OCRDMA_REG_NSMR_LAST_SHIFT);
1922 cmd->flags_hpage_pbe_sz |= (hwmr->pbe_size / OCRDMA_MIN_HPAGE_SIZE);
1923 cmd->flags_hpage_pbe_sz |= (hwmr->pbl_size / OCRDMA_MIN_HPAGE_SIZE) <<
1924 OCRDMA_REG_NSMR_HPAGE_SIZE_SHIFT;
1925 cmd->totlen_low = hwmr->len;
1926 cmd->totlen_high = upper_32_bits(hwmr->len);
1927 cmd->fbo_low = (u32) (hwmr->fbo & 0xffffffff);
1928 cmd->fbo_high = (u32) upper_32_bits(hwmr->fbo);
1929 cmd->va_loaddr = (u32) hwmr->va;
1930 cmd->va_hiaddr = (u32) upper_32_bits(hwmr->va);
1932 for (i = 0; i < pbl_cnt; i++) {
1933 cmd->pbl[i].lo = (u32) (hwmr->pbl_table[i].pa & 0xffffffff);
1934 cmd->pbl[i].hi = upper_32_bits(hwmr->pbl_table[i].pa);
1936 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1939 rsp = (struct ocrdma_reg_nsmr_rsp *)cmd;
1940 hwmr->lkey = rsp->lrkey;
1946 static int ocrdma_mbx_reg_mr_cont(struct ocrdma_dev *dev,
1947 struct ocrdma_hw_mr *hwmr, u32 pbl_cnt,
1948 u32 pbl_offset, u32 last)
1950 int status = -ENOMEM;
1952 struct ocrdma_reg_nsmr_cont *cmd;
1954 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_REGISTER_NSMR_CONT, sizeof(*cmd));
1957 cmd->lrkey = hwmr->lkey;
1958 cmd->num_pbl_offset = (pbl_cnt << OCRDMA_REG_NSMR_CONT_NUM_PBL_SHIFT) |
1959 (pbl_offset & OCRDMA_REG_NSMR_CONT_PBL_SHIFT_MASK);
1960 cmd->last = last << OCRDMA_REG_NSMR_CONT_LAST_SHIFT;
1962 for (i = 0; i < pbl_cnt; i++) {
1964 (u32) (hwmr->pbl_table[i + pbl_offset].pa & 0xffffffff);
1966 upper_32_bits(hwmr->pbl_table[i + pbl_offset].pa);
1968 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
1976 int ocrdma_reg_mr(struct ocrdma_dev *dev,
1977 struct ocrdma_hw_mr *hwmr, u32 pdid, int acc)
1981 u32 cur_pbl_cnt, pbl_offset;
1982 u32 pending_pbl_cnt = hwmr->num_pbls;
1985 cur_pbl_cnt = min(pending_pbl_cnt, MAX_OCRDMA_NSMR_PBL);
1986 if (cur_pbl_cnt == pending_pbl_cnt)
1989 status = ocrdma_mbx_reg_mr(dev, hwmr, pdid,
1990 cur_pbl_cnt, hwmr->pbe_size, last);
1992 pr_err("%s() status=%d\n", __func__, status);
1995 /* if there is no more pbls to register then exit. */
2000 pbl_offset += cur_pbl_cnt;
2001 pending_pbl_cnt -= cur_pbl_cnt;
2002 cur_pbl_cnt = min(pending_pbl_cnt, MAX_OCRDMA_NSMR_PBL);
2003 /* if we reach the end of the pbls, then need to set the last
2004 * bit, indicating no more pbls to register for this memory key.
2006 if (cur_pbl_cnt == pending_pbl_cnt)
2009 status = ocrdma_mbx_reg_mr_cont(dev, hwmr, cur_pbl_cnt,
2015 pr_err("%s() err. status=%d\n", __func__, status);
2020 bool ocrdma_is_qp_in_sq_flushlist(struct ocrdma_cq *cq, struct ocrdma_qp *qp)
2022 struct ocrdma_qp *tmp;
2024 list_for_each_entry(tmp, &cq->sq_head, sq_entry) {
2033 bool ocrdma_is_qp_in_rq_flushlist(struct ocrdma_cq *cq, struct ocrdma_qp *qp)
2035 struct ocrdma_qp *tmp;
2037 list_for_each_entry(tmp, &cq->rq_head, rq_entry) {
2046 void ocrdma_flush_qp(struct ocrdma_qp *qp)
2049 unsigned long flags;
2050 struct ocrdma_dev *dev = get_ocrdma_dev(qp->ibqp.device);
2052 spin_lock_irqsave(&dev->flush_q_lock, flags);
2053 found = ocrdma_is_qp_in_sq_flushlist(qp->sq_cq, qp);
2055 list_add_tail(&qp->sq_entry, &qp->sq_cq->sq_head);
2057 found = ocrdma_is_qp_in_rq_flushlist(qp->rq_cq, qp);
2059 list_add_tail(&qp->rq_entry, &qp->rq_cq->rq_head);
2061 spin_unlock_irqrestore(&dev->flush_q_lock, flags);
2064 static void ocrdma_init_hwq_ptr(struct ocrdma_qp *qp)
2072 int ocrdma_qp_state_change(struct ocrdma_qp *qp, enum ib_qp_state new_ib_state,
2073 enum ib_qp_state *old_ib_state)
2075 unsigned long flags;
2077 enum ocrdma_qp_state new_state;
2078 new_state = get_ocrdma_qp_state(new_ib_state);
2080 /* sync with wqe and rqe posting */
2081 spin_lock_irqsave(&qp->q_lock, flags);
2084 *old_ib_state = get_ibqp_state(qp->state);
2085 if (new_state == qp->state) {
2086 spin_unlock_irqrestore(&qp->q_lock, flags);
2091 if (new_state == OCRDMA_QPS_INIT) {
2092 ocrdma_init_hwq_ptr(qp);
2093 ocrdma_del_flush_qp(qp);
2094 } else if (new_state == OCRDMA_QPS_ERR) {
2095 ocrdma_flush_qp(qp);
2098 qp->state = new_state;
2100 spin_unlock_irqrestore(&qp->q_lock, flags);
2104 static u32 ocrdma_set_create_qp_mbx_access_flags(struct ocrdma_qp *qp)
2107 if (qp->cap_flags & OCRDMA_QP_INB_RD)
2108 flags |= OCRDMA_CREATE_QP_REQ_INB_RDEN_MASK;
2109 if (qp->cap_flags & OCRDMA_QP_INB_WR)
2110 flags |= OCRDMA_CREATE_QP_REQ_INB_WREN_MASK;
2111 if (qp->cap_flags & OCRDMA_QP_MW_BIND)
2112 flags |= OCRDMA_CREATE_QP_REQ_BIND_MEMWIN_MASK;
2113 if (qp->cap_flags & OCRDMA_QP_LKEY0)
2114 flags |= OCRDMA_CREATE_QP_REQ_ZERO_LKEYEN_MASK;
2115 if (qp->cap_flags & OCRDMA_QP_FAST_REG)
2116 flags |= OCRDMA_CREATE_QP_REQ_FMR_EN_MASK;
2120 static int ocrdma_set_create_qp_sq_cmd(struct ocrdma_create_qp_req *cmd,
2121 struct ib_qp_init_attr *attrs,
2122 struct ocrdma_qp *qp)
2125 u32 len, hw_pages, hw_page_size;
2127 struct ocrdma_pd *pd = qp->pd;
2128 struct ocrdma_dev *dev = get_ocrdma_dev(pd->ibpd.device);
2129 struct pci_dev *pdev = dev->nic_info.pdev;
2130 u32 max_wqe_allocated;
2131 u32 max_sges = attrs->cap.max_send_sge;
2133 /* QP1 may exceed 127 */
2134 max_wqe_allocated = min_t(u32, attrs->cap.max_send_wr + 1,
2137 status = ocrdma_build_q_conf(&max_wqe_allocated,
2138 dev->attr.wqe_size, &hw_pages, &hw_page_size);
2140 pr_err("%s() req. max_send_wr=0x%x\n", __func__,
2144 qp->sq.max_cnt = max_wqe_allocated;
2145 len = (hw_pages * hw_page_size);
2147 qp->sq.va = dma_alloc_coherent(&pdev->dev, len, &pa, GFP_KERNEL);
2150 memset(qp->sq.va, 0, len);
2153 qp->sq.entry_size = dev->attr.wqe_size;
2154 ocrdma_build_q_pages(&cmd->wq_addr[0], hw_pages, pa, hw_page_size);
2156 cmd->type_pgsz_pdn |= (ilog2(hw_page_size / OCRDMA_MIN_Q_PAGE_SIZE)
2157 << OCRDMA_CREATE_QP_REQ_SQ_PAGE_SIZE_SHIFT);
2158 cmd->num_wq_rq_pages |= (hw_pages <<
2159 OCRDMA_CREATE_QP_REQ_NUM_WQ_PAGES_SHIFT) &
2160 OCRDMA_CREATE_QP_REQ_NUM_WQ_PAGES_MASK;
2161 cmd->max_sge_send_write |= (max_sges <<
2162 OCRDMA_CREATE_QP_REQ_MAX_SGE_SEND_SHIFT) &
2163 OCRDMA_CREATE_QP_REQ_MAX_SGE_SEND_MASK;
2164 cmd->max_sge_send_write |= (max_sges <<
2165 OCRDMA_CREATE_QP_REQ_MAX_SGE_WRITE_SHIFT) &
2166 OCRDMA_CREATE_QP_REQ_MAX_SGE_WRITE_MASK;
2167 cmd->max_wqe_rqe |= (ilog2(qp->sq.max_cnt) <<
2168 OCRDMA_CREATE_QP_REQ_MAX_WQE_SHIFT) &
2169 OCRDMA_CREATE_QP_REQ_MAX_WQE_MASK;
2170 cmd->wqe_rqe_size |= (dev->attr.wqe_size <<
2171 OCRDMA_CREATE_QP_REQ_WQE_SIZE_SHIFT) &
2172 OCRDMA_CREATE_QP_REQ_WQE_SIZE_MASK;
2176 static int ocrdma_set_create_qp_rq_cmd(struct ocrdma_create_qp_req *cmd,
2177 struct ib_qp_init_attr *attrs,
2178 struct ocrdma_qp *qp)
2181 u32 len, hw_pages, hw_page_size;
2183 struct ocrdma_pd *pd = qp->pd;
2184 struct ocrdma_dev *dev = get_ocrdma_dev(pd->ibpd.device);
2185 struct pci_dev *pdev = dev->nic_info.pdev;
2186 u32 max_rqe_allocated = attrs->cap.max_recv_wr + 1;
2188 status = ocrdma_build_q_conf(&max_rqe_allocated, dev->attr.rqe_size,
2189 &hw_pages, &hw_page_size);
2191 pr_err("%s() req. max_recv_wr=0x%x\n", __func__,
2192 attrs->cap.max_recv_wr + 1);
2195 qp->rq.max_cnt = max_rqe_allocated;
2196 len = (hw_pages * hw_page_size);
2198 qp->rq.va = dma_alloc_coherent(&pdev->dev, len, &pa, GFP_KERNEL);
2201 memset(qp->rq.va, 0, len);
2204 qp->rq.entry_size = dev->attr.rqe_size;
2206 ocrdma_build_q_pages(&cmd->rq_addr[0], hw_pages, pa, hw_page_size);
2207 cmd->type_pgsz_pdn |= (ilog2(hw_page_size / OCRDMA_MIN_Q_PAGE_SIZE) <<
2208 OCRDMA_CREATE_QP_REQ_RQ_PAGE_SIZE_SHIFT);
2209 cmd->num_wq_rq_pages |=
2210 (hw_pages << OCRDMA_CREATE_QP_REQ_NUM_RQ_PAGES_SHIFT) &
2211 OCRDMA_CREATE_QP_REQ_NUM_RQ_PAGES_MASK;
2212 cmd->max_sge_recv_flags |= (attrs->cap.max_recv_sge <<
2213 OCRDMA_CREATE_QP_REQ_MAX_SGE_RECV_SHIFT) &
2214 OCRDMA_CREATE_QP_REQ_MAX_SGE_RECV_MASK;
2215 cmd->max_wqe_rqe |= (ilog2(qp->rq.max_cnt) <<
2216 OCRDMA_CREATE_QP_REQ_MAX_RQE_SHIFT) &
2217 OCRDMA_CREATE_QP_REQ_MAX_RQE_MASK;
2218 cmd->wqe_rqe_size |= (dev->attr.rqe_size <<
2219 OCRDMA_CREATE_QP_REQ_RQE_SIZE_SHIFT) &
2220 OCRDMA_CREATE_QP_REQ_RQE_SIZE_MASK;
2224 static void ocrdma_set_create_qp_dpp_cmd(struct ocrdma_create_qp_req *cmd,
2225 struct ocrdma_pd *pd,
2226 struct ocrdma_qp *qp,
2227 u8 enable_dpp_cq, u16 dpp_cq_id)
2230 qp->dpp_enabled = true;
2231 cmd->max_sge_recv_flags |= OCRDMA_CREATE_QP_REQ_ENABLE_DPP_MASK;
2234 cmd->max_sge_recv_flags |= OCRDMA_CREATE_QP_REQ_ENABLE_DPP_MASK;
2235 cmd->dpp_credits_cqid = dpp_cq_id;
2236 cmd->dpp_credits_cqid |= OCRDMA_CREATE_QP_REQ_DPP_CREDIT_LIMIT <<
2237 OCRDMA_CREATE_QP_REQ_DPP_CREDIT_SHIFT;
2240 static int ocrdma_set_create_qp_ird_cmd(struct ocrdma_create_qp_req *cmd,
2241 struct ocrdma_qp *qp)
2243 struct ocrdma_pd *pd = qp->pd;
2244 struct ocrdma_dev *dev = get_ocrdma_dev(pd->ibpd.device);
2245 struct pci_dev *pdev = dev->nic_info.pdev;
2247 int ird_page_size = dev->attr.ird_page_size;
2248 int ird_q_len = dev->attr.num_ird_pages * ird_page_size;
2249 struct ocrdma_hdr_wqe *rqe;
2252 if (dev->attr.ird == 0)
2255 qp->ird_q_va = dma_alloc_coherent(&pdev->dev, ird_q_len,
2259 memset(qp->ird_q_va, 0, ird_q_len);
2260 ocrdma_build_q_pages(&cmd->ird_addr[0], dev->attr.num_ird_pages,
2262 for (; i < ird_q_len / dev->attr.rqe_size; i++) {
2263 rqe = (struct ocrdma_hdr_wqe *)(qp->ird_q_va +
2264 (i * dev->attr.rqe_size));
2267 rqe->cw |= (OCRDMA_TYPE_LKEY << OCRDMA_WQE_TYPE_SHIFT);
2268 rqe->cw |= (8 << OCRDMA_WQE_SIZE_SHIFT);
2269 rqe->cw |= (8 << OCRDMA_WQE_NXT_WQE_SIZE_SHIFT);
2274 static void ocrdma_get_create_qp_rsp(struct ocrdma_create_qp_rsp *rsp,
2275 struct ocrdma_qp *qp,
2276 struct ib_qp_init_attr *attrs,
2277 u16 *dpp_offset, u16 *dpp_credit_lmt)
2279 u32 max_wqe_allocated, max_rqe_allocated;
2280 qp->id = rsp->qp_id & OCRDMA_CREATE_QP_RSP_QP_ID_MASK;
2281 qp->rq.dbid = rsp->sq_rq_id & OCRDMA_CREATE_QP_RSP_RQ_ID_MASK;
2282 qp->sq.dbid = rsp->sq_rq_id >> OCRDMA_CREATE_QP_RSP_SQ_ID_SHIFT;
2283 qp->max_ird = rsp->max_ord_ird & OCRDMA_CREATE_QP_RSP_MAX_IRD_MASK;
2284 qp->max_ord = (rsp->max_ord_ird >> OCRDMA_CREATE_QP_RSP_MAX_ORD_SHIFT);
2285 qp->dpp_enabled = false;
2286 if (rsp->dpp_response & OCRDMA_CREATE_QP_RSP_DPP_ENABLED_MASK) {
2287 qp->dpp_enabled = true;
2288 *dpp_credit_lmt = (rsp->dpp_response &
2289 OCRDMA_CREATE_QP_RSP_DPP_CREDITS_MASK) >>
2290 OCRDMA_CREATE_QP_RSP_DPP_CREDITS_SHIFT;
2291 *dpp_offset = (rsp->dpp_response &
2292 OCRDMA_CREATE_QP_RSP_DPP_PAGE_OFFSET_MASK) >>
2293 OCRDMA_CREATE_QP_RSP_DPP_PAGE_OFFSET_SHIFT;
2296 rsp->max_wqe_rqe >> OCRDMA_CREATE_QP_RSP_MAX_WQE_SHIFT;
2297 max_wqe_allocated = 1 << max_wqe_allocated;
2298 max_rqe_allocated = 1 << ((u16)rsp->max_wqe_rqe);
2300 qp->sq.max_cnt = max_wqe_allocated;
2301 qp->sq.max_wqe_idx = max_wqe_allocated - 1;
2304 qp->rq.max_cnt = max_rqe_allocated;
2305 qp->rq.max_wqe_idx = max_rqe_allocated - 1;
2309 int ocrdma_mbx_create_qp(struct ocrdma_qp *qp, struct ib_qp_init_attr *attrs,
2310 u8 enable_dpp_cq, u16 dpp_cq_id, u16 *dpp_offset,
2311 u16 *dpp_credit_lmt)
2313 int status = -ENOMEM;
2315 struct ocrdma_pd *pd = qp->pd;
2316 struct ocrdma_dev *dev = get_ocrdma_dev(pd->ibpd.device);
2317 struct pci_dev *pdev = dev->nic_info.pdev;
2318 struct ocrdma_cq *cq;
2319 struct ocrdma_create_qp_req *cmd;
2320 struct ocrdma_create_qp_rsp *rsp;
2323 switch (attrs->qp_type) {
2325 qptype = OCRDMA_QPT_GSI;
2328 qptype = OCRDMA_QPT_RC;
2331 qptype = OCRDMA_QPT_UD;
2337 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_QP, sizeof(*cmd));
2340 cmd->type_pgsz_pdn |= (qptype << OCRDMA_CREATE_QP_REQ_QPT_SHIFT) &
2341 OCRDMA_CREATE_QP_REQ_QPT_MASK;
2342 status = ocrdma_set_create_qp_sq_cmd(cmd, attrs, qp);
2347 struct ocrdma_srq *srq = get_ocrdma_srq(attrs->srq);
2348 cmd->max_sge_recv_flags |= OCRDMA_CREATE_QP_REQ_USE_SRQ_MASK;
2349 cmd->rq_addr[0].lo = srq->id;
2352 status = ocrdma_set_create_qp_rq_cmd(cmd, attrs, qp);
2357 status = ocrdma_set_create_qp_ird_cmd(cmd, qp);
2361 cmd->type_pgsz_pdn |= (pd->id << OCRDMA_CREATE_QP_REQ_PD_ID_SHIFT) &
2362 OCRDMA_CREATE_QP_REQ_PD_ID_MASK;
2364 flags = ocrdma_set_create_qp_mbx_access_flags(qp);
2366 cmd->max_sge_recv_flags |= flags;
2367 cmd->max_ord_ird |= (dev->attr.max_ord_per_qp <<
2368 OCRDMA_CREATE_QP_REQ_MAX_ORD_SHIFT) &
2369 OCRDMA_CREATE_QP_REQ_MAX_ORD_MASK;
2370 cmd->max_ord_ird |= (dev->attr.max_ird_per_qp <<
2371 OCRDMA_CREATE_QP_REQ_MAX_IRD_SHIFT) &
2372 OCRDMA_CREATE_QP_REQ_MAX_IRD_MASK;
2373 cq = get_ocrdma_cq(attrs->send_cq);
2374 cmd->wq_rq_cqid |= (cq->id << OCRDMA_CREATE_QP_REQ_WQ_CQID_SHIFT) &
2375 OCRDMA_CREATE_QP_REQ_WQ_CQID_MASK;
2377 cq = get_ocrdma_cq(attrs->recv_cq);
2378 cmd->wq_rq_cqid |= (cq->id << OCRDMA_CREATE_QP_REQ_RQ_CQID_SHIFT) &
2379 OCRDMA_CREATE_QP_REQ_RQ_CQID_MASK;
2382 if (pd->dpp_enabled && attrs->cap.max_inline_data && pd->num_dpp_qp &&
2383 (attrs->cap.max_inline_data <= dev->attr.max_inline_data)) {
2384 ocrdma_set_create_qp_dpp_cmd(cmd, pd, qp, enable_dpp_cq,
2388 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
2391 rsp = (struct ocrdma_create_qp_rsp *)cmd;
2392 ocrdma_get_create_qp_rsp(rsp, qp, attrs, dpp_offset, dpp_credit_lmt);
2393 qp->state = OCRDMA_QPS_RST;
2398 dma_free_coherent(&pdev->dev, qp->rq.len, qp->rq.va, qp->rq.pa);
2400 pr_err("%s(%d) rq_err\n", __func__, dev->id);
2401 dma_free_coherent(&pdev->dev, qp->sq.len, qp->sq.va, qp->sq.pa);
2403 pr_err("%s(%d) sq_err\n", __func__, dev->id);
2408 int ocrdma_mbx_query_qp(struct ocrdma_dev *dev, struct ocrdma_qp *qp,
2409 struct ocrdma_qp_params *param)
2411 int status = -ENOMEM;
2412 struct ocrdma_query_qp *cmd;
2413 struct ocrdma_query_qp_rsp *rsp;
2415 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_QUERY_QP, sizeof(*cmd));
2418 cmd->qp_id = qp->id;
2419 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
2422 rsp = (struct ocrdma_query_qp_rsp *)cmd;
2423 memcpy(param, &rsp->params, sizeof(struct ocrdma_qp_params));
2429 static int ocrdma_set_av_params(struct ocrdma_qp *qp,
2430 struct ocrdma_modify_qp *cmd,
2431 struct ib_qp_attr *attrs,
2435 struct ib_ah_attr *ah_attr = &attrs->ah_attr;
2436 union ib_gid sgid, zgid;
2437 u32 vlan_id = 0xFFFF;
2439 struct ocrdma_dev *dev = get_ocrdma_dev(qp->ibqp.device);
2441 if ((ah_attr->ah_flags & IB_AH_GRH) == 0)
2443 if (atomic_cmpxchg(&dev->update_sl, 1, 0))
2444 ocrdma_init_service_level(dev);
2445 cmd->params.tclass_sq_psn |=
2446 (ah_attr->grh.traffic_class << OCRDMA_QP_PARAMS_TCLASS_SHIFT);
2447 cmd->params.rnt_rc_sl_fl |=
2448 (ah_attr->grh.flow_label & OCRDMA_QP_PARAMS_FLOW_LABEL_MASK);
2449 cmd->params.rnt_rc_sl_fl |= (ah_attr->sl << OCRDMA_QP_PARAMS_SL_SHIFT);
2450 cmd->params.hop_lmt_rq_psn |=
2451 (ah_attr->grh.hop_limit << OCRDMA_QP_PARAMS_HOP_LMT_SHIFT);
2452 cmd->flags |= OCRDMA_QP_PARA_FLOW_LBL_VALID;
2453 memcpy(&cmd->params.dgid[0], &ah_attr->grh.dgid.raw[0],
2454 sizeof(cmd->params.dgid));
2455 status = ocrdma_query_gid(&dev->ibdev, 1,
2456 ah_attr->grh.sgid_index, &sgid);
2460 memset(&zgid, 0, sizeof(zgid));
2461 if (!memcmp(&sgid, &zgid, sizeof(zgid)))
2464 qp->sgid_idx = ah_attr->grh.sgid_index;
2465 memcpy(&cmd->params.sgid[0], &sgid.raw[0], sizeof(cmd->params.sgid));
2466 status = ocrdma_resolve_dmac(dev, ah_attr, &mac_addr[0]);
2469 cmd->params.dmac_b0_to_b3 = mac_addr[0] | (mac_addr[1] << 8) |
2470 (mac_addr[2] << 16) | (mac_addr[3] << 24);
2471 /* convert them to LE format. */
2472 ocrdma_cpu_to_le32(&cmd->params.dgid[0], sizeof(cmd->params.dgid));
2473 ocrdma_cpu_to_le32(&cmd->params.sgid[0], sizeof(cmd->params.sgid));
2474 cmd->params.vlan_dmac_b4_to_b5 = mac_addr[4] | (mac_addr[5] << 8);
2475 if (attr_mask & IB_QP_VID) {
2476 vlan_id = attrs->vlan_id;
2477 } else if (dev->pfc_state) {
2479 pr_err("ocrdma%d:Using VLAN with PFC is recommended\n",
2481 pr_err("ocrdma%d:Using VLAN 0 for this connection\n",
2485 if (vlan_id < 0x1000) {
2486 cmd->params.vlan_dmac_b4_to_b5 |=
2487 vlan_id << OCRDMA_QP_PARAMS_VLAN_SHIFT;
2488 cmd->flags |= OCRDMA_QP_PARA_VLAN_EN_VALID;
2489 cmd->params.rnt_rc_sl_fl |=
2490 (dev->sl & 0x07) << OCRDMA_QP_PARAMS_SL_SHIFT;
2496 static int ocrdma_set_qp_params(struct ocrdma_qp *qp,
2497 struct ocrdma_modify_qp *cmd,
2498 struct ib_qp_attr *attrs, int attr_mask)
2501 struct ocrdma_dev *dev = get_ocrdma_dev(qp->ibqp.device);
2503 if (attr_mask & IB_QP_PKEY_INDEX) {
2504 cmd->params.path_mtu_pkey_indx |= (attrs->pkey_index &
2505 OCRDMA_QP_PARAMS_PKEY_INDEX_MASK);
2506 cmd->flags |= OCRDMA_QP_PARA_PKEY_VALID;
2508 if (attr_mask & IB_QP_QKEY) {
2509 qp->qkey = attrs->qkey;
2510 cmd->params.qkey = attrs->qkey;
2511 cmd->flags |= OCRDMA_QP_PARA_QKEY_VALID;
2513 if (attr_mask & IB_QP_AV) {
2514 status = ocrdma_set_av_params(qp, cmd, attrs, attr_mask);
2517 } else if (qp->qp_type == IB_QPT_GSI || qp->qp_type == IB_QPT_UD) {
2518 /* set the default mac address for UD, GSI QPs */
2519 cmd->params.dmac_b0_to_b3 = dev->nic_info.mac_addr[0] |
2520 (dev->nic_info.mac_addr[1] << 8) |
2521 (dev->nic_info.mac_addr[2] << 16) |
2522 (dev->nic_info.mac_addr[3] << 24);
2523 cmd->params.vlan_dmac_b4_to_b5 = dev->nic_info.mac_addr[4] |
2524 (dev->nic_info.mac_addr[5] << 8);
2526 if ((attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY) &&
2527 attrs->en_sqd_async_notify) {
2528 cmd->params.max_sge_recv_flags |=
2529 OCRDMA_QP_PARAMS_FLAGS_SQD_ASYNC;
2530 cmd->flags |= OCRDMA_QP_PARA_DST_QPN_VALID;
2532 if (attr_mask & IB_QP_DEST_QPN) {
2533 cmd->params.ack_to_rnr_rtc_dest_qpn |= (attrs->dest_qp_num &
2534 OCRDMA_QP_PARAMS_DEST_QPN_MASK);
2535 cmd->flags |= OCRDMA_QP_PARA_DST_QPN_VALID;
2537 if (attr_mask & IB_QP_PATH_MTU) {
2538 if (attrs->path_mtu < IB_MTU_256 ||
2539 attrs->path_mtu > IB_MTU_4096) {
2543 cmd->params.path_mtu_pkey_indx |=
2544 (ib_mtu_enum_to_int(attrs->path_mtu) <<
2545 OCRDMA_QP_PARAMS_PATH_MTU_SHIFT) &
2546 OCRDMA_QP_PARAMS_PATH_MTU_MASK;
2547 cmd->flags |= OCRDMA_QP_PARA_PMTU_VALID;
2549 if (attr_mask & IB_QP_TIMEOUT) {
2550 cmd->params.ack_to_rnr_rtc_dest_qpn |= attrs->timeout <<
2551 OCRDMA_QP_PARAMS_ACK_TIMEOUT_SHIFT;
2552 cmd->flags |= OCRDMA_QP_PARA_ACK_TO_VALID;
2554 if (attr_mask & IB_QP_RETRY_CNT) {
2555 cmd->params.rnt_rc_sl_fl |= (attrs->retry_cnt <<
2556 OCRDMA_QP_PARAMS_RETRY_CNT_SHIFT) &
2557 OCRDMA_QP_PARAMS_RETRY_CNT_MASK;
2558 cmd->flags |= OCRDMA_QP_PARA_RETRY_CNT_VALID;
2560 if (attr_mask & IB_QP_MIN_RNR_TIMER) {
2561 cmd->params.rnt_rc_sl_fl |= (attrs->min_rnr_timer <<
2562 OCRDMA_QP_PARAMS_RNR_NAK_TIMER_SHIFT) &
2563 OCRDMA_QP_PARAMS_RNR_NAK_TIMER_MASK;
2564 cmd->flags |= OCRDMA_QP_PARA_RNT_VALID;
2566 if (attr_mask & IB_QP_RNR_RETRY) {
2567 cmd->params.ack_to_rnr_rtc_dest_qpn |= (attrs->rnr_retry <<
2568 OCRDMA_QP_PARAMS_RNR_RETRY_CNT_SHIFT)
2569 & OCRDMA_QP_PARAMS_RNR_RETRY_CNT_MASK;
2570 cmd->flags |= OCRDMA_QP_PARA_RRC_VALID;
2572 if (attr_mask & IB_QP_SQ_PSN) {
2573 cmd->params.tclass_sq_psn |= (attrs->sq_psn & 0x00ffffff);
2574 cmd->flags |= OCRDMA_QP_PARA_SQPSN_VALID;
2576 if (attr_mask & IB_QP_RQ_PSN) {
2577 cmd->params.hop_lmt_rq_psn |= (attrs->rq_psn & 0x00ffffff);
2578 cmd->flags |= OCRDMA_QP_PARA_RQPSN_VALID;
2580 if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) {
2581 if (attrs->max_rd_atomic > dev->attr.max_ord_per_qp) {
2585 qp->max_ord = attrs->max_rd_atomic;
2586 cmd->flags |= OCRDMA_QP_PARA_MAX_ORD_VALID;
2588 if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) {
2589 if (attrs->max_dest_rd_atomic > dev->attr.max_ird_per_qp) {
2593 qp->max_ird = attrs->max_dest_rd_atomic;
2594 cmd->flags |= OCRDMA_QP_PARA_MAX_IRD_VALID;
2596 cmd->params.max_ord_ird = (qp->max_ord <<
2597 OCRDMA_QP_PARAMS_MAX_ORD_SHIFT) |
2598 (qp->max_ird & OCRDMA_QP_PARAMS_MAX_IRD_MASK);
2603 int ocrdma_mbx_modify_qp(struct ocrdma_dev *dev, struct ocrdma_qp *qp,
2604 struct ib_qp_attr *attrs, int attr_mask)
2606 int status = -ENOMEM;
2607 struct ocrdma_modify_qp *cmd;
2609 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_MODIFY_QP, sizeof(*cmd));
2613 cmd->params.id = qp->id;
2615 if (attr_mask & IB_QP_STATE) {
2616 cmd->params.max_sge_recv_flags |=
2617 (get_ocrdma_qp_state(attrs->qp_state) <<
2618 OCRDMA_QP_PARAMS_STATE_SHIFT) &
2619 OCRDMA_QP_PARAMS_STATE_MASK;
2620 cmd->flags |= OCRDMA_QP_PARA_QPS_VALID;
2622 cmd->params.max_sge_recv_flags |=
2623 (qp->state << OCRDMA_QP_PARAMS_STATE_SHIFT) &
2624 OCRDMA_QP_PARAMS_STATE_MASK;
2627 status = ocrdma_set_qp_params(qp, cmd, attrs, attr_mask);
2630 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
2639 int ocrdma_mbx_destroy_qp(struct ocrdma_dev *dev, struct ocrdma_qp *qp)
2641 int status = -ENOMEM;
2642 struct ocrdma_destroy_qp *cmd;
2643 struct pci_dev *pdev = dev->nic_info.pdev;
2645 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DELETE_QP, sizeof(*cmd));
2648 cmd->qp_id = qp->id;
2649 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
2656 dma_free_coherent(&pdev->dev, qp->sq.len, qp->sq.va, qp->sq.pa);
2657 if (!qp->srq && qp->rq.va)
2658 dma_free_coherent(&pdev->dev, qp->rq.len, qp->rq.va, qp->rq.pa);
2659 if (qp->dpp_enabled)
2660 qp->pd->num_dpp_qp++;
2664 int ocrdma_mbx_create_srq(struct ocrdma_dev *dev, struct ocrdma_srq *srq,
2665 struct ib_srq_init_attr *srq_attr,
2666 struct ocrdma_pd *pd)
2668 int status = -ENOMEM;
2669 int hw_pages, hw_page_size;
2671 struct ocrdma_create_srq_rsp *rsp;
2672 struct ocrdma_create_srq *cmd;
2674 struct pci_dev *pdev = dev->nic_info.pdev;
2675 u32 max_rqe_allocated;
2677 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_SRQ, sizeof(*cmd));
2681 cmd->pgsz_pdid = pd->id & OCRDMA_CREATE_SRQ_PD_ID_MASK;
2682 max_rqe_allocated = srq_attr->attr.max_wr + 1;
2683 status = ocrdma_build_q_conf(&max_rqe_allocated,
2685 &hw_pages, &hw_page_size);
2687 pr_err("%s() req. max_wr=0x%x\n", __func__,
2688 srq_attr->attr.max_wr);
2692 len = hw_pages * hw_page_size;
2693 srq->rq.va = dma_alloc_coherent(&pdev->dev, len, &pa, GFP_KERNEL);
2698 ocrdma_build_q_pages(&cmd->rq_addr[0], hw_pages, pa, hw_page_size);
2700 srq->rq.entry_size = dev->attr.rqe_size;
2703 srq->rq.max_cnt = max_rqe_allocated;
2705 cmd->max_sge_rqe = ilog2(max_rqe_allocated);
2706 cmd->max_sge_rqe |= srq_attr->attr.max_sge <<
2707 OCRDMA_CREATE_SRQ_MAX_SGE_RECV_SHIFT;
2709 cmd->pgsz_pdid |= (ilog2(hw_page_size / OCRDMA_MIN_Q_PAGE_SIZE)
2710 << OCRDMA_CREATE_SRQ_PG_SZ_SHIFT);
2711 cmd->pages_rqe_sz |= (dev->attr.rqe_size
2712 << OCRDMA_CREATE_SRQ_RQE_SIZE_SHIFT)
2713 & OCRDMA_CREATE_SRQ_RQE_SIZE_MASK;
2714 cmd->pages_rqe_sz |= hw_pages << OCRDMA_CREATE_SRQ_NUM_RQ_PAGES_SHIFT;
2716 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
2719 rsp = (struct ocrdma_create_srq_rsp *)cmd;
2721 srq->rq.dbid = rsp->id;
2722 max_rqe_allocated = ((rsp->max_sge_rqe_allocated &
2723 OCRDMA_CREATE_SRQ_RSP_MAX_RQE_ALLOCATED_MASK) >>
2724 OCRDMA_CREATE_SRQ_RSP_MAX_RQE_ALLOCATED_SHIFT);
2725 max_rqe_allocated = (1 << max_rqe_allocated);
2726 srq->rq.max_cnt = max_rqe_allocated;
2727 srq->rq.max_wqe_idx = max_rqe_allocated - 1;
2728 srq->rq.max_sges = (rsp->max_sge_rqe_allocated &
2729 OCRDMA_CREATE_SRQ_RSP_MAX_SGE_RECV_ALLOCATED_MASK) >>
2730 OCRDMA_CREATE_SRQ_RSP_MAX_SGE_RECV_ALLOCATED_SHIFT;
2733 dma_free_coherent(&pdev->dev, srq->rq.len, srq->rq.va, pa);
2739 int ocrdma_mbx_modify_srq(struct ocrdma_srq *srq, struct ib_srq_attr *srq_attr)
2741 int status = -ENOMEM;
2742 struct ocrdma_modify_srq *cmd;
2743 struct ocrdma_pd *pd = srq->pd;
2744 struct ocrdma_dev *dev = get_ocrdma_dev(pd->ibpd.device);
2746 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_MODIFY_SRQ, sizeof(*cmd));
2750 cmd->limit_max_rqe |= srq_attr->srq_limit <<
2751 OCRDMA_MODIFY_SRQ_LIMIT_SHIFT;
2752 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
2757 int ocrdma_mbx_query_srq(struct ocrdma_srq *srq, struct ib_srq_attr *srq_attr)
2759 int status = -ENOMEM;
2760 struct ocrdma_query_srq *cmd;
2761 struct ocrdma_dev *dev = get_ocrdma_dev(srq->ibsrq.device);
2763 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_QUERY_SRQ, sizeof(*cmd));
2766 cmd->id = srq->rq.dbid;
2767 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
2769 struct ocrdma_query_srq_rsp *rsp =
2770 (struct ocrdma_query_srq_rsp *)cmd;
2772 rsp->srq_lmt_max_sge &
2773 OCRDMA_QUERY_SRQ_RSP_MAX_SGE_RECV_MASK;
2775 rsp->max_rqe_pdid >> OCRDMA_QUERY_SRQ_RSP_MAX_RQE_SHIFT;
2776 srq_attr->srq_limit = rsp->srq_lmt_max_sge >>
2777 OCRDMA_QUERY_SRQ_RSP_SRQ_LIMIT_SHIFT;
2783 int ocrdma_mbx_destroy_srq(struct ocrdma_dev *dev, struct ocrdma_srq *srq)
2785 int status = -ENOMEM;
2786 struct ocrdma_destroy_srq *cmd;
2787 struct pci_dev *pdev = dev->nic_info.pdev;
2788 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DELETE_SRQ, sizeof(*cmd));
2792 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
2794 dma_free_coherent(&pdev->dev, srq->rq.len,
2795 srq->rq.va, srq->rq.pa);
2800 static int ocrdma_mbx_get_dcbx_config(struct ocrdma_dev *dev, u32 ptype,
2801 struct ocrdma_dcbx_cfg *dcbxcfg)
2805 struct ocrdma_mqe cmd;
2807 struct ocrdma_get_dcbx_cfg_req *req = NULL;
2808 struct ocrdma_get_dcbx_cfg_rsp *rsp = NULL;
2809 struct pci_dev *pdev = dev->nic_info.pdev;
2810 struct ocrdma_mqe_sge *mqe_sge = cmd.u.nonemb_req.sge;
2812 memset(&cmd, 0, sizeof(struct ocrdma_mqe));
2813 cmd.hdr.pyld_len = max_t (u32, sizeof(struct ocrdma_get_dcbx_cfg_rsp),
2814 sizeof(struct ocrdma_get_dcbx_cfg_req));
2815 req = dma_alloc_coherent(&pdev->dev, cmd.hdr.pyld_len, &pa, GFP_KERNEL);
2821 cmd.hdr.spcl_sge_cnt_emb |= (1 << OCRDMA_MQE_HDR_SGE_CNT_SHIFT) &
2822 OCRDMA_MQE_HDR_SGE_CNT_MASK;
2823 mqe_sge->pa_lo = (u32) (pa & 0xFFFFFFFFUL);
2824 mqe_sge->pa_hi = (u32) upper_32_bits(pa);
2825 mqe_sge->len = cmd.hdr.pyld_len;
2827 memset(req, 0, sizeof(struct ocrdma_get_dcbx_cfg_req));
2828 ocrdma_init_mch(&req->hdr, OCRDMA_CMD_GET_DCBX_CONFIG,
2829 OCRDMA_SUBSYS_DCBX, cmd.hdr.pyld_len);
2830 req->param_type = ptype;
2832 status = ocrdma_mbx_cmd(dev, &cmd);
2836 rsp = (struct ocrdma_get_dcbx_cfg_rsp *)req;
2837 ocrdma_le32_to_cpu(rsp, sizeof(struct ocrdma_get_dcbx_cfg_rsp));
2838 memcpy(dcbxcfg, &rsp->cfg, sizeof(struct ocrdma_dcbx_cfg));
2841 dma_free_coherent(&pdev->dev, cmd.hdr.pyld_len, req, pa);
2846 #define OCRDMA_MAX_SERVICE_LEVEL_INDEX 0x08
2847 #define OCRDMA_DEFAULT_SERVICE_LEVEL 0x05
2849 static int ocrdma_parse_dcbxcfg_rsp(struct ocrdma_dev *dev, int ptype,
2850 struct ocrdma_dcbx_cfg *dcbxcfg,
2853 int status = -EINVAL, indx, slindx;
2855 struct ocrdma_app_parameter *app_param;
2856 u8 valid, proto_sel;
2857 u8 app_prio, pfc_prio;
2860 if (!(dcbxcfg->tcv_aev_opv_st & OCRDMA_DCBX_STATE_MASK)) {
2861 pr_info("%s ocrdma%d DCBX is disabled\n",
2862 dev_name(&dev->nic_info.pdev->dev), dev->id);
2866 if (!ocrdma_is_enabled_and_synced(dcbxcfg->pfc_state)) {
2867 pr_info("%s ocrdma%d priority flow control(%s) is %s%s\n",
2868 dev_name(&dev->nic_info.pdev->dev), dev->id,
2869 (ptype > 0 ? "operational" : "admin"),
2870 (dcbxcfg->pfc_state & OCRDMA_STATE_FLAG_ENABLED) ?
2871 "enabled" : "disabled",
2872 (dcbxcfg->pfc_state & OCRDMA_STATE_FLAG_SYNC) ?
2873 "" : ", not sync'ed");
2876 pr_info("%s ocrdma%d priority flow control is enabled and sync'ed\n",
2877 dev_name(&dev->nic_info.pdev->dev), dev->id);
2880 ventry_cnt = (dcbxcfg->tcv_aev_opv_st >>
2881 OCRDMA_DCBX_APP_ENTRY_SHIFT)
2882 & OCRDMA_DCBX_STATE_MASK;
2884 for (indx = 0; indx < ventry_cnt; indx++) {
2885 app_param = &dcbxcfg->app_param[indx];
2886 valid = (app_param->valid_proto_app >>
2887 OCRDMA_APP_PARAM_VALID_SHIFT)
2888 & OCRDMA_APP_PARAM_VALID_MASK;
2889 proto_sel = (app_param->valid_proto_app
2890 >> OCRDMA_APP_PARAM_PROTO_SEL_SHIFT)
2891 & OCRDMA_APP_PARAM_PROTO_SEL_MASK;
2892 proto = app_param->valid_proto_app &
2893 OCRDMA_APP_PARAM_APP_PROTO_MASK;
2896 valid && proto == OCRDMA_APP_PROTO_ROCE &&
2897 proto_sel == OCRDMA_PROTO_SELECT_L2) {
2898 for (slindx = 0; slindx <
2899 OCRDMA_MAX_SERVICE_LEVEL_INDEX; slindx++) {
2900 app_prio = ocrdma_get_app_prio(
2901 (u8 *)app_param->app_prio,
2903 pfc_prio = ocrdma_get_pfc_prio(
2904 (u8 *)dcbxcfg->pfc_prio,
2907 if (app_prio && pfc_prio) {
2913 if (slindx == OCRDMA_MAX_SERVICE_LEVEL_INDEX) {
2914 pr_info("%s ocrdma%d application priority not set for 0x%x protocol\n",
2915 dev_name(&dev->nic_info.pdev->dev),
2925 void ocrdma_init_service_level(struct ocrdma_dev *dev)
2927 int status = 0, indx;
2928 struct ocrdma_dcbx_cfg dcbxcfg;
2929 u8 srvc_lvl = OCRDMA_DEFAULT_SERVICE_LEVEL;
2930 int ptype = OCRDMA_PARAMETER_TYPE_OPER;
2932 for (indx = 0; indx < 2; indx++) {
2933 status = ocrdma_mbx_get_dcbx_config(dev, ptype, &dcbxcfg);
2935 pr_err("%s(): status=%d\n", __func__, status);
2936 ptype = OCRDMA_PARAMETER_TYPE_ADMIN;
2940 status = ocrdma_parse_dcbxcfg_rsp(dev, ptype,
2941 &dcbxcfg, &srvc_lvl);
2943 ptype = OCRDMA_PARAMETER_TYPE_ADMIN;
2951 pr_info("%s ocrdma%d service level default\n",
2952 dev_name(&dev->nic_info.pdev->dev), dev->id);
2954 pr_info("%s ocrdma%d service level %d\n",
2955 dev_name(&dev->nic_info.pdev->dev), dev->id,
2958 dev->pfc_state = ocrdma_is_enabled_and_synced(dcbxcfg.pfc_state);
2962 int ocrdma_alloc_av(struct ocrdma_dev *dev, struct ocrdma_ah *ah)
2965 int status = -EINVAL;
2966 struct ocrdma_av *av;
2967 unsigned long flags;
2969 av = dev->av_tbl.va;
2970 spin_lock_irqsave(&dev->av_tbl.lock, flags);
2971 for (i = 0; i < dev->av_tbl.num_ah; i++) {
2972 if (av->valid == 0) {
2973 av->valid = OCRDMA_AV_VALID;
2981 if (i == dev->av_tbl.num_ah)
2983 spin_unlock_irqrestore(&dev->av_tbl.lock, flags);
2987 int ocrdma_free_av(struct ocrdma_dev *dev, struct ocrdma_ah *ah)
2989 unsigned long flags;
2990 spin_lock_irqsave(&dev->av_tbl.lock, flags);
2992 spin_unlock_irqrestore(&dev->av_tbl.lock, flags);
2996 static int ocrdma_create_eqs(struct ocrdma_dev *dev)
2998 int num_eq, i, status = 0;
3000 unsigned long flags = 0;
3002 num_eq = dev->nic_info.msix.num_vectors -
3003 dev->nic_info.msix.start_vector;
3004 if (dev->nic_info.intr_mode == BE_INTERRUPT_MODE_INTX) {
3006 flags = IRQF_SHARED;
3008 num_eq = min_t(u32, num_eq, num_online_cpus());
3014 dev->eq_tbl = kzalloc(sizeof(struct ocrdma_eq) * num_eq, GFP_KERNEL);
3018 for (i = 0; i < num_eq; i++) {
3019 status = ocrdma_create_eq(dev, &dev->eq_tbl[i],
3025 sprintf(dev->eq_tbl[i].irq_name, "ocrdma%d-%d",
3027 irq = ocrdma_get_irq(dev, &dev->eq_tbl[i]);
3028 status = request_irq(irq, ocrdma_irq_handler, flags,
3029 dev->eq_tbl[i].irq_name,
3035 /* one eq is sufficient for data path to work */
3038 ocrdma_destroy_eqs(dev);
3042 static int ocrdma_mbx_modify_eqd(struct ocrdma_dev *dev, struct ocrdma_eq *eq,
3045 int i, status = -ENOMEM;
3046 struct ocrdma_modify_eqd_req *cmd;
3048 cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_MODIFY_EQ_DELAY, sizeof(*cmd));
3052 ocrdma_init_mch(&cmd->cmd.req, OCRDMA_CMD_MODIFY_EQ_DELAY,
3053 OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
3055 cmd->cmd.num_eq = num;
3056 for (i = 0; i < num; i++) {
3057 cmd->cmd.set_eqd[i].eq_id = eq[i].q.id;
3058 cmd->cmd.set_eqd[i].phase = 0;
3059 cmd->cmd.set_eqd[i].delay_multiplier =
3060 (eq[i].aic_obj.prev_eqd * 65)/100;
3062 status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
3070 static int ocrdma_modify_eqd(struct ocrdma_dev *dev, struct ocrdma_eq *eq,
3076 num_eqs = min(num, 8);
3077 ocrdma_mbx_modify_eqd(dev, &eq[i], num_eqs);
3082 ocrdma_mbx_modify_eqd(dev, eq, num);
3087 void ocrdma_eqd_set_task(struct work_struct *work)
3089 struct ocrdma_dev *dev =
3090 container_of(work, struct ocrdma_dev, eqd_work.work);
3091 struct ocrdma_eq *eq = 0;
3092 int i, num = 0, status = -EINVAL;
3095 for (i = 0; i < dev->eq_cnt; i++) {
3096 eq = &dev->eq_tbl[i];
3097 if (eq->aic_obj.eq_intr_cnt > eq->aic_obj.prev_eq_intr_cnt) {
3098 eq_intr = eq->aic_obj.eq_intr_cnt -
3099 eq->aic_obj.prev_eq_intr_cnt;
3100 if ((eq_intr > EQ_INTR_PER_SEC_THRSH_HI) &&
3101 (eq->aic_obj.prev_eqd == EQ_AIC_MIN_EQD)) {
3102 eq->aic_obj.prev_eqd = EQ_AIC_MAX_EQD;
3104 } else if ((eq_intr < EQ_INTR_PER_SEC_THRSH_LOW) &&
3105 (eq->aic_obj.prev_eqd == EQ_AIC_MAX_EQD)) {
3106 eq->aic_obj.prev_eqd = EQ_AIC_MIN_EQD;
3110 eq->aic_obj.prev_eq_intr_cnt = eq->aic_obj.eq_intr_cnt;
3114 status = ocrdma_modify_eqd(dev, &dev->eq_tbl[0], num);
3115 schedule_delayed_work(&dev->eqd_work, msecs_to_jiffies(1000));
3118 int ocrdma_init_hw(struct ocrdma_dev *dev)
3122 /* create the eqs */
3123 status = ocrdma_create_eqs(dev);
3126 status = ocrdma_create_mq(dev);
3129 status = ocrdma_mbx_query_fw_config(dev);
3132 status = ocrdma_mbx_query_dev(dev);
3135 status = ocrdma_mbx_query_fw_ver(dev);
3138 status = ocrdma_mbx_create_ah_tbl(dev);
3141 status = ocrdma_mbx_get_phy_info(dev);
3143 goto info_attrb_err;
3144 status = ocrdma_mbx_get_ctrl_attribs(dev);
3146 goto info_attrb_err;
3151 ocrdma_mbx_delete_ah_tbl(dev);
3153 ocrdma_destroy_mq(dev);
3155 ocrdma_destroy_eqs(dev);
3157 pr_err("%s() status=%d\n", __func__, status);
3161 void ocrdma_cleanup_hw(struct ocrdma_dev *dev)
3163 ocrdma_free_pd_pool(dev);
3164 ocrdma_mbx_delete_ah_tbl(dev);
3166 /* cleanup the control path */
3167 ocrdma_destroy_mq(dev);
3169 /* cleanup the eqs */
3170 ocrdma_destroy_eqs(dev);