| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Parav Pandit | 13030 | 74.50% | 4 | 4.55% |
| Selvin Xavier | 1934 | 11.06% | 12 | 13.64% |
| Mitesh Ahuja | 1161 | 6.64% | 7 | 7.95% |
| Naresh Gottumukkala | 547 | 3.13% | 16 | 18.18% |
| Devesh Sharma | 535 | 3.06% | 14 | 15.91% |
| Naga Irrinki | 102 | 0.58% | 2 | 2.27% |
| Jason Gunthorpe | 33 | 0.19% | 3 | 3.41% |
| Dasaratharaman Chandramouli | 26 | 0.15% | 2 | 2.27% |
| Mahesh Vardhamanaiah | 22 | 0.13% | 2 | 2.27% |
| Roland Dreier | 17 | 0.10% | 4 | 4.55% |
| Somnath Kotur | 14 | 0.08% | 1 | 1.14% |
| Matan Barak | 14 | 0.08% | 1 | 1.14% |
| Christophe Jaillet | 10 | 0.06% | 1 | 1.14% |
| Sasha Levin | 10 | 0.06% | 1 | 1.14% |
| Bart Van Assche | 7 | 0.04% | 2 | 2.27% |
| Leon Romanovsky | 5 | 0.03% | 3 | 3.41% |
| Luis R. Rodriguez | 5 | 0.03% | 1 | 1.14% |
| Jes Sorensen | 3 | 0.02% | 2 | 2.27% |
| Kees Cook | 3 | 0.02% | 1 | 1.14% |
| Pan Bian | 2 | 0.01% | 1 | 1.14% |
| Gustavo A. R. Silva | 2 | 0.01% | 1 | 1.14% |
| Wei Yongjun | 2 | 0.01% | 1 | 1.14% |
| SF Markus Elfring | 1 | 0.01% | 1 | 1.14% |
| Moni Shoua | 1 | 0.01% | 1 | 1.14% |
| Wolfram Sang | 1 | 0.01% | 1 | 1.14% |
| Colin Ian King | 1 | 0.01% | 1 | 1.14% |
| Arvind Yadav | 1 | 0.01% | 1 | 1.14% |
| Dan Carpenter | 1 | 0.01% | 1 | 1.14% |
| Total | 17490 | 88 |
/* This file is part of the Emulex RoCE Device Driver for * RoCE (RDMA over Converged Ethernet) adapters. * Copyright (C) 2012-2015 Emulex. All rights reserved. * EMULEX and SLI are trademarks of Emulex. * www.emulex.com * * This software is available to you under a choice of one of two licenses. * You may choose to be licensed under the terms of the GNU General Public * License (GPL) Version 2, available from the file COPYING in the main * directory of this source tree, or the BSD license below: * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * Contact Information: * linux-drivers@emulex.com * * Emulex * 3333 Susan Street * Costa Mesa, CA 92626 */ #include <linux/sched.h> #include <linux/interrupt.h> #include <linux/log2.h> #include <linux/dma-mapping.h> #include <linux/if_ether.h> #include <rdma/ib_verbs.h> #include <rdma/ib_user_verbs.h> #include <rdma/ib_cache.h> #include "ocrdma.h" #include "ocrdma_hw.h" #include "ocrdma_verbs.h" #include "ocrdma_ah.h" enum mbx_status { OCRDMA_MBX_STATUS_FAILED = 1, OCRDMA_MBX_STATUS_ILLEGAL_FIELD = 3, OCRDMA_MBX_STATUS_OOR = 100, OCRDMA_MBX_STATUS_INVALID_PD = 101, OCRDMA_MBX_STATUS_PD_INUSE = 102, OCRDMA_MBX_STATUS_INVALID_CQ = 103, OCRDMA_MBX_STATUS_INVALID_QP = 104, OCRDMA_MBX_STATUS_INVALID_LKEY = 105, OCRDMA_MBX_STATUS_ORD_EXCEEDS = 106, OCRDMA_MBX_STATUS_IRD_EXCEEDS = 107, OCRDMA_MBX_STATUS_SENDQ_WQE_EXCEEDS = 108, OCRDMA_MBX_STATUS_RECVQ_RQE_EXCEEDS = 109, OCRDMA_MBX_STATUS_SGE_SEND_EXCEEDS = 110, OCRDMA_MBX_STATUS_SGE_WRITE_EXCEEDS = 111, OCRDMA_MBX_STATUS_SGE_RECV_EXCEEDS = 112, OCRDMA_MBX_STATUS_INVALID_STATE_CHANGE = 113, OCRDMA_MBX_STATUS_MW_BOUND = 114, OCRDMA_MBX_STATUS_INVALID_VA = 115, OCRDMA_MBX_STATUS_INVALID_LENGTH = 116, OCRDMA_MBX_STATUS_INVALID_FBO = 117, OCRDMA_MBX_STATUS_INVALID_ACC_RIGHTS = 118, OCRDMA_MBX_STATUS_INVALID_PBE_SIZE = 119, OCRDMA_MBX_STATUS_INVALID_PBL_ENTRY = 120, OCRDMA_MBX_STATUS_INVALID_PBL_SHIFT = 121, OCRDMA_MBX_STATUS_INVALID_SRQ_ID = 129, OCRDMA_MBX_STATUS_SRQ_ERROR = 133, OCRDMA_MBX_STATUS_RQE_EXCEEDS = 134, OCRDMA_MBX_STATUS_MTU_EXCEEDS = 135, OCRDMA_MBX_STATUS_MAX_QP_EXCEEDS = 136, OCRDMA_MBX_STATUS_SRQ_LIMIT_EXCEEDS = 137, OCRDMA_MBX_STATUS_SRQ_SIZE_UNDERUNS = 138, OCRDMA_MBX_STATUS_QP_BOUND = 130, OCRDMA_MBX_STATUS_INVALID_CHANGE = 139, OCRDMA_MBX_STATUS_ATOMIC_OPS_UNSUP = 140, OCRDMA_MBX_STATUS_INVALID_RNR_NAK_TIMER = 141, OCRDMA_MBX_STATUS_MW_STILL_BOUND = 142, OCRDMA_MBX_STATUS_PKEY_INDEX_INVALID = 143, OCRDMA_MBX_STATUS_PKEY_INDEX_EXCEEDS = 144 }; enum additional_status { OCRDMA_MBX_ADDI_STATUS_INSUFFICIENT_RESOURCES = 22 }; enum cqe_status { OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_PRIVILEDGES = 1, OCRDMA_MBX_CQE_STATUS_INVALID_PARAMETER = 2, OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_RESOURCES = 3, OCRDMA_MBX_CQE_STATUS_QUEUE_FLUSHING = 4, OCRDMA_MBX_CQE_STATUS_DMA_FAILED = 5 }; static inline void *ocrdma_get_eqe(struct ocrdma_eq *eq) { return eq->q.va + (eq->q.tail * sizeof(struct ocrdma_eqe)); } static inline void ocrdma_eq_inc_tail(struct ocrdma_eq *eq) { eq->q.tail = (eq->q.tail + 1) & (OCRDMA_EQ_LEN - 1); } static inline void *ocrdma_get_mcqe(struct ocrdma_dev *dev) { struct ocrdma_mcqe *cqe = (struct ocrdma_mcqe *) (dev->mq.cq.va + (dev->mq.cq.tail * sizeof(struct ocrdma_mcqe))); if (!(le32_to_cpu(cqe->valid_ae_cmpl_cons) & OCRDMA_MCQE_VALID_MASK)) return NULL; return cqe; } static inline void ocrdma_mcq_inc_tail(struct ocrdma_dev *dev) { dev->mq.cq.tail = (dev->mq.cq.tail + 1) & (OCRDMA_MQ_CQ_LEN - 1); } static inline struct ocrdma_mqe *ocrdma_get_mqe(struct ocrdma_dev *dev) { return dev->mq.sq.va + (dev->mq.sq.head * sizeof(struct ocrdma_mqe)); } static inline void ocrdma_mq_inc_head(struct ocrdma_dev *dev) { dev->mq.sq.head = (dev->mq.sq.head + 1) & (OCRDMA_MQ_LEN - 1); } static inline void *ocrdma_get_mqe_rsp(struct ocrdma_dev *dev) { return dev->mq.sq.va + (dev->mqe_ctx.tag * sizeof(struct ocrdma_mqe)); } enum ib_qp_state get_ibqp_state(enum ocrdma_qp_state qps) { switch (qps) { case OCRDMA_QPS_RST: return IB_QPS_RESET; case OCRDMA_QPS_INIT: return IB_QPS_INIT; case OCRDMA_QPS_RTR: return IB_QPS_RTR; case OCRDMA_QPS_RTS: return IB_QPS_RTS; case OCRDMA_QPS_SQD: case OCRDMA_QPS_SQ_DRAINING: return IB_QPS_SQD; case OCRDMA_QPS_SQE: return IB_QPS_SQE; case OCRDMA_QPS_ERR: return IB_QPS_ERR; } return IB_QPS_ERR; } static enum ocrdma_qp_state get_ocrdma_qp_state(enum ib_qp_state qps) { switch (qps) { case IB_QPS_RESET: return OCRDMA_QPS_RST; case IB_QPS_INIT: return OCRDMA_QPS_INIT; case IB_QPS_RTR: return OCRDMA_QPS_RTR; case IB_QPS_RTS: return OCRDMA_QPS_RTS; case IB_QPS_SQD: return OCRDMA_QPS_SQD; case IB_QPS_SQE: return OCRDMA_QPS_SQE; case IB_QPS_ERR: return OCRDMA_QPS_ERR; } return OCRDMA_QPS_ERR; } static int ocrdma_get_mbx_errno(u32 status) { int err_num; u8 mbox_status = (status & OCRDMA_MBX_RSP_STATUS_MASK) >> OCRDMA_MBX_RSP_STATUS_SHIFT; u8 add_status = (status & OCRDMA_MBX_RSP_ASTATUS_MASK) >> OCRDMA_MBX_RSP_ASTATUS_SHIFT; switch (mbox_status) { case OCRDMA_MBX_STATUS_OOR: case OCRDMA_MBX_STATUS_MAX_QP_EXCEEDS: err_num = -EAGAIN; break; case OCRDMA_MBX_STATUS_INVALID_PD: case OCRDMA_MBX_STATUS_INVALID_CQ: case OCRDMA_MBX_STATUS_INVALID_SRQ_ID: case OCRDMA_MBX_STATUS_INVALID_QP: case OCRDMA_MBX_STATUS_INVALID_CHANGE: case OCRDMA_MBX_STATUS_MTU_EXCEEDS: case OCRDMA_MBX_STATUS_INVALID_RNR_NAK_TIMER: case OCRDMA_MBX_STATUS_PKEY_INDEX_INVALID: case OCRDMA_MBX_STATUS_PKEY_INDEX_EXCEEDS: case OCRDMA_MBX_STATUS_ILLEGAL_FIELD: case OCRDMA_MBX_STATUS_INVALID_PBL_ENTRY: case OCRDMA_MBX_STATUS_INVALID_LKEY: case OCRDMA_MBX_STATUS_INVALID_VA: case OCRDMA_MBX_STATUS_INVALID_LENGTH: case OCRDMA_MBX_STATUS_INVALID_FBO: case OCRDMA_MBX_STATUS_INVALID_ACC_RIGHTS: case OCRDMA_MBX_STATUS_INVALID_PBE_SIZE: case OCRDMA_MBX_STATUS_ATOMIC_OPS_UNSUP: case OCRDMA_MBX_STATUS_SRQ_ERROR: case OCRDMA_MBX_STATUS_SRQ_SIZE_UNDERUNS: err_num = -EINVAL; break; case OCRDMA_MBX_STATUS_PD_INUSE: case OCRDMA_MBX_STATUS_QP_BOUND: case OCRDMA_MBX_STATUS_MW_STILL_BOUND: case OCRDMA_MBX_STATUS_MW_BOUND: err_num = -EBUSY; break; case OCRDMA_MBX_STATUS_RECVQ_RQE_EXCEEDS: case OCRDMA_MBX_STATUS_SGE_RECV_EXCEEDS: case OCRDMA_MBX_STATUS_RQE_EXCEEDS: case OCRDMA_MBX_STATUS_SRQ_LIMIT_EXCEEDS: case OCRDMA_MBX_STATUS_ORD_EXCEEDS: case OCRDMA_MBX_STATUS_IRD_EXCEEDS: case OCRDMA_MBX_STATUS_SENDQ_WQE_EXCEEDS: case OCRDMA_MBX_STATUS_SGE_SEND_EXCEEDS: case OCRDMA_MBX_STATUS_SGE_WRITE_EXCEEDS: err_num = -ENOBUFS; break; case OCRDMA_MBX_STATUS_FAILED: switch (add_status) { case OCRDMA_MBX_ADDI_STATUS_INSUFFICIENT_RESOURCES: err_num = -EAGAIN; break; default: err_num = -EFAULT; } break; default: err_num = -EFAULT; } return err_num; } char *port_speed_string(struct ocrdma_dev *dev) { char *str = ""; u16 speeds_supported; speeds_supported = dev->phy.fixed_speeds_supported | dev->phy.auto_speeds_supported; if (speeds_supported & OCRDMA_PHY_SPEED_40GBPS) str = "40Gbps "; else if (speeds_supported & OCRDMA_PHY_SPEED_10GBPS) str = "10Gbps "; else if (speeds_supported & OCRDMA_PHY_SPEED_1GBPS) str = "1Gbps "; return str; } static int ocrdma_get_mbx_cqe_errno(u16 cqe_status) { int err_num = -EINVAL; switch (cqe_status) { case OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_PRIVILEDGES: err_num = -EPERM; break; case OCRDMA_MBX_CQE_STATUS_INVALID_PARAMETER: err_num = -EINVAL; break; case OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_RESOURCES: case OCRDMA_MBX_CQE_STATUS_QUEUE_FLUSHING: err_num = -EINVAL; break; case OCRDMA_MBX_CQE_STATUS_DMA_FAILED: default: err_num = -EINVAL; break; } return err_num; } void ocrdma_ring_cq_db(struct ocrdma_dev *dev, u16 cq_id, bool armed, bool solicited, u16 cqe_popped) { u32 val = cq_id & OCRDMA_DB_CQ_RING_ID_MASK; val |= ((cq_id & OCRDMA_DB_CQ_RING_ID_EXT_MASK) << OCRDMA_DB_CQ_RING_ID_EXT_MASK_SHIFT); if (armed) val |= (1 << OCRDMA_DB_CQ_REARM_SHIFT); if (solicited) val |= (1 << OCRDMA_DB_CQ_SOLICIT_SHIFT); val |= (cqe_popped << OCRDMA_DB_CQ_NUM_POPPED_SHIFT); iowrite32(val, dev->nic_info.db + OCRDMA_DB_CQ_OFFSET); } static void ocrdma_ring_mq_db(struct ocrdma_dev *dev) { u32 val = 0; val |= dev->mq.sq.id & OCRDMA_MQ_ID_MASK; val |= 1 << OCRDMA_MQ_NUM_MQE_SHIFT; iowrite32(val, dev->nic_info.db + OCRDMA_DB_MQ_OFFSET); } static void ocrdma_ring_eq_db(struct ocrdma_dev *dev, u16 eq_id, bool arm, bool clear_int, u16 num_eqe) { u32 val = 0; val |= eq_id & OCRDMA_EQ_ID_MASK; val |= ((eq_id & OCRDMA_EQ_ID_EXT_MASK) << OCRDMA_EQ_ID_EXT_MASK_SHIFT); if (arm) val |= (1 << OCRDMA_REARM_SHIFT); if (clear_int) val |= (1 << OCRDMA_EQ_CLR_SHIFT); val |= (1 << OCRDMA_EQ_TYPE_SHIFT); val |= (num_eqe << OCRDMA_NUM_EQE_SHIFT); iowrite32(val, dev->nic_info.db + OCRDMA_DB_EQ_OFFSET); } static void ocrdma_init_mch(struct ocrdma_mbx_hdr *cmd_hdr, u8 opcode, u8 subsys, u32 cmd_len) { cmd_hdr->subsys_op = (opcode | (subsys << OCRDMA_MCH_SUBSYS_SHIFT)); cmd_hdr->timeout = 20; /* seconds */ cmd_hdr->cmd_len = cmd_len - sizeof(struct ocrdma_mbx_hdr); } static void *ocrdma_init_emb_mqe(u8 opcode, u32 cmd_len) { struct ocrdma_mqe *mqe; mqe = kzalloc(sizeof(struct ocrdma_mqe), GFP_KERNEL); if (!mqe) return NULL; mqe->hdr.spcl_sge_cnt_emb |= (OCRDMA_MQE_EMBEDDED << OCRDMA_MQE_HDR_EMB_SHIFT) & OCRDMA_MQE_HDR_EMB_MASK; mqe->hdr.pyld_len = cmd_len - sizeof(struct ocrdma_mqe_hdr); ocrdma_init_mch(&mqe->u.emb_req.mch, opcode, OCRDMA_SUBSYS_ROCE, mqe->hdr.pyld_len); return mqe; } static void ocrdma_free_q(struct ocrdma_dev *dev, struct ocrdma_queue_info *q) { dma_free_coherent(&dev->nic_info.pdev->dev, q->size, q->va, q->dma); } static int ocrdma_alloc_q(struct ocrdma_dev *dev, struct ocrdma_queue_info *q, u16 len, u16 entry_size) { memset(q, 0, sizeof(*q)); q->len = len; q->entry_size = entry_size; q->size = len * entry_size; q->va = dma_alloc_coherent(&dev->nic_info.pdev->dev, q->size, &q->dma, GFP_KERNEL); if (!q->va) return -ENOMEM; return 0; } static void ocrdma_build_q_pages(struct ocrdma_pa *q_pa, int cnt, dma_addr_t host_pa, int hw_page_size) { int i; for (i = 0; i < cnt; i++) { q_pa[i].lo = (u32) (host_pa & 0xffffffff); q_pa[i].hi = (u32) upper_32_bits(host_pa); host_pa += hw_page_size; } } static int ocrdma_mbx_delete_q(struct ocrdma_dev *dev, struct ocrdma_queue_info *q, int queue_type) { u8 opcode = 0; int status; struct ocrdma_delete_q_req *cmd = dev->mbx_cmd; switch (queue_type) { case QTYPE_MCCQ: opcode = OCRDMA_CMD_DELETE_MQ; break; case QTYPE_CQ: opcode = OCRDMA_CMD_DELETE_CQ; break; case QTYPE_EQ: opcode = OCRDMA_CMD_DELETE_EQ; break; default: BUG(); } memset(cmd, 0, sizeof(*cmd)); ocrdma_init_mch(&cmd->req, opcode, OCRDMA_SUBSYS_COMMON, sizeof(*cmd)); cmd->id = q->id; status = be_roce_mcc_cmd(dev->nic_info.netdev, cmd, sizeof(*cmd), NULL, NULL); if (!status) q->created = false; return status; } static int ocrdma_mbx_create_eq(struct ocrdma_dev *dev, struct ocrdma_eq *eq) { int status; struct ocrdma_create_eq_req *cmd = dev->mbx_cmd; struct ocrdma_create_eq_rsp *rsp = dev->mbx_cmd; memset(cmd, 0, sizeof(*cmd)); ocrdma_init_mch(&cmd->req, OCRDMA_CMD_CREATE_EQ, OCRDMA_SUBSYS_COMMON, sizeof(*cmd)); cmd->req.rsvd_version = 2; cmd->num_pages = 4; cmd->valid = OCRDMA_CREATE_EQ_VALID; cmd->cnt = 4 << OCRDMA_CREATE_EQ_CNT_SHIFT; ocrdma_build_q_pages(&cmd->pa[0], cmd->num_pages, eq->q.dma, PAGE_SIZE_4K); status = be_roce_mcc_cmd(dev->nic_info.netdev, cmd, sizeof(*cmd), NULL, NULL); if (!status) { eq->q.id = rsp->vector_eqid & 0xffff; eq->vector = (rsp->vector_eqid >> 16) & 0xffff; eq->q.created = true; } return status; } static int ocrdma_create_eq(struct ocrdma_dev *dev, struct ocrdma_eq *eq, u16 q_len) { int status; status = ocrdma_alloc_q(dev, &eq->q, OCRDMA_EQ_LEN, sizeof(struct ocrdma_eqe)); if (status) return status; status = ocrdma_mbx_create_eq(dev, eq); if (status) goto mbx_err; eq->dev = dev; ocrdma_ring_eq_db(dev, eq->q.id, true, true, 0); return 0; mbx_err: ocrdma_free_q(dev, &eq->q); return status; } int ocrdma_get_irq(struct ocrdma_dev *dev, struct ocrdma_eq *eq) { int irq; if (dev->nic_info.intr_mode == BE_INTERRUPT_MODE_INTX) irq = dev->nic_info.pdev->irq; else irq = dev->nic_info.msix.vector_list[eq->vector]; return irq; } static void _ocrdma_destroy_eq(struct ocrdma_dev *dev, struct ocrdma_eq *eq) { if (eq->q.created) { ocrdma_mbx_delete_q(dev, &eq->q, QTYPE_EQ); ocrdma_free_q(dev, &eq->q); } } static void ocrdma_destroy_eq(struct ocrdma_dev *dev, struct ocrdma_eq *eq) { int irq; /* disarm EQ so that interrupts are not generated * during freeing and EQ delete is in progress. */ ocrdma_ring_eq_db(dev, eq->q.id, false, false, 0); irq = ocrdma_get_irq(dev, eq); free_irq(irq, eq); _ocrdma_destroy_eq(dev, eq); } static void ocrdma_destroy_eqs(struct ocrdma_dev *dev) { int i; for (i = 0; i < dev->eq_cnt; i++) ocrdma_destroy_eq(dev, &dev->eq_tbl[i]); } static int ocrdma_mbx_mq_cq_create(struct ocrdma_dev *dev, struct ocrdma_queue_info *cq, struct ocrdma_queue_info *eq) { struct ocrdma_create_cq_cmd *cmd = dev->mbx_cmd; struct ocrdma_create_cq_cmd_rsp *rsp = dev->mbx_cmd; int status; memset(cmd, 0, sizeof(*cmd)); ocrdma_init_mch(&cmd->req, OCRDMA_CMD_CREATE_CQ, OCRDMA_SUBSYS_COMMON, sizeof(*cmd)); cmd->req.rsvd_version = OCRDMA_CREATE_CQ_VER2; cmd->pgsz_pgcnt = (cq->size / OCRDMA_MIN_Q_PAGE_SIZE) << OCRDMA_CREATE_CQ_PAGE_SIZE_SHIFT; cmd->pgsz_pgcnt |= PAGES_4K_SPANNED(cq->va, cq->size); cmd->ev_cnt_flags = OCRDMA_CREATE_CQ_DEF_FLAGS; cmd->eqn = eq->id; cmd->pdid_cqecnt = cq->size / sizeof(struct ocrdma_mcqe); ocrdma_build_q_pages(&cmd->pa[0], cq->size / OCRDMA_MIN_Q_PAGE_SIZE, cq->dma, PAGE_SIZE_4K); status = be_roce_mcc_cmd(dev->nic_info.netdev, cmd, sizeof(*cmd), NULL, NULL); if (!status) { cq->id = (u16) (rsp->cq_id & OCRDMA_CREATE_CQ_RSP_CQ_ID_MASK); cq->created = true; } return status; } static u32 ocrdma_encoded_q_len(int q_len) { u32 len_encoded = fls(q_len); /* log2(len) + 1 */ if (len_encoded == 16) len_encoded = 0; return len_encoded; } static int ocrdma_mbx_create_mq(struct ocrdma_dev *dev, struct ocrdma_queue_info *mq, struct ocrdma_queue_info *cq) { int num_pages, status; struct ocrdma_create_mq_req *cmd = dev->mbx_cmd; struct ocrdma_create_mq_rsp *rsp = dev->mbx_cmd; struct ocrdma_pa *pa; memset(cmd, 0, sizeof(*cmd)); num_pages = PAGES_4K_SPANNED(mq->va, mq->size); ocrdma_init_mch(&cmd->req, OCRDMA_CMD_CREATE_MQ_EXT, OCRDMA_SUBSYS_COMMON, sizeof(*cmd)); cmd->req.rsvd_version = 1; cmd->cqid_pages = num_pages; cmd->cqid_pages |= (cq->id << OCRDMA_CREATE_MQ_CQ_ID_SHIFT); cmd->async_cqid_valid = OCRDMA_CREATE_MQ_ASYNC_CQ_VALID; cmd->async_event_bitmap = BIT(OCRDMA_ASYNC_GRP5_EVE_CODE); cmd->async_event_bitmap |= BIT(OCRDMA_ASYNC_RDMA_EVE_CODE); /* Request link events on this MQ. */ cmd->async_event_bitmap |= BIT(OCRDMA_ASYNC_LINK_EVE_CODE); cmd->async_cqid_ringsize = cq->id; cmd->async_cqid_ringsize |= (ocrdma_encoded_q_len(mq->len) << OCRDMA_CREATE_MQ_RING_SIZE_SHIFT); cmd->valid = OCRDMA_CREATE_MQ_VALID; pa = &cmd->pa[0]; ocrdma_build_q_pages(pa, num_pages, mq->dma, PAGE_SIZE_4K); status = be_roce_mcc_cmd(dev->nic_info.netdev, cmd, sizeof(*cmd), NULL, NULL); if (!status) { mq->id = rsp->id; mq->created = true; } return status; } static int ocrdma_create_mq(struct ocrdma_dev *dev) { int status; /* Alloc completion queue for Mailbox queue */ status = ocrdma_alloc_q(dev, &dev->mq.cq, OCRDMA_MQ_CQ_LEN, sizeof(struct ocrdma_mcqe)); if (status) goto alloc_err; dev->eq_tbl[0].cq_cnt++; status = ocrdma_mbx_mq_cq_create(dev, &dev->mq.cq, &dev->eq_tbl[0].q); if (status) goto mbx_cq_free; memset(&dev->mqe_ctx, 0, sizeof(dev->mqe_ctx)); init_waitqueue_head(&dev->mqe_ctx.cmd_wait); mutex_init(&dev->mqe_ctx.lock); /* Alloc Mailbox queue */ status = ocrdma_alloc_q(dev, &dev->mq.sq, OCRDMA_MQ_LEN, sizeof(struct ocrdma_mqe)); if (status) goto mbx_cq_destroy; status = ocrdma_mbx_create_mq(dev, &dev->mq.sq, &dev->mq.cq); if (status) goto mbx_q_free; ocrdma_ring_cq_db(dev, dev->mq.cq.id, true, false, 0); return 0; mbx_q_free: ocrdma_free_q(dev, &dev->mq.sq); mbx_cq_destroy: ocrdma_mbx_delete_q(dev, &dev->mq.cq, QTYPE_CQ); mbx_cq_free: ocrdma_free_q(dev, &dev->mq.cq); alloc_err: return status; } static void ocrdma_destroy_mq(struct ocrdma_dev *dev) { struct ocrdma_queue_info *mbxq, *cq; /* mqe_ctx lock synchronizes with any other pending cmds. */ mutex_lock(&dev->mqe_ctx.lock); mbxq = &dev->mq.sq; if (mbxq->created) { ocrdma_mbx_delete_q(dev, mbxq, QTYPE_MCCQ); ocrdma_free_q(dev, mbxq); } mutex_unlock(&dev->mqe_ctx.lock); cq = &dev->mq.cq; if (cq->created) { ocrdma_mbx_delete_q(dev, cq, QTYPE_CQ); ocrdma_free_q(dev, cq); } } static void ocrdma_process_qpcat_error(struct ocrdma_dev *dev, struct ocrdma_qp *qp) { enum ib_qp_state new_ib_qps = IB_QPS_ERR; enum ib_qp_state old_ib_qps; if (qp == NULL) BUG(); ocrdma_qp_state_change(qp, new_ib_qps, &old_ib_qps); } static void ocrdma_dispatch_ibevent(struct ocrdma_dev *dev, struct ocrdma_ae_mcqe *cqe) { struct ocrdma_qp *qp = NULL; struct ocrdma_cq *cq = NULL; struct ib_event ib_evt; int cq_event = 0; int qp_event = 1; int srq_event = 0; int dev_event = 0; int type = (cqe->valid_ae_event & OCRDMA_AE_MCQE_EVENT_TYPE_MASK) >> OCRDMA_AE_MCQE_EVENT_TYPE_SHIFT; u16 qpid = cqe->qpvalid_qpid & OCRDMA_AE_MCQE_QPID_MASK; u16 cqid = cqe->cqvalid_cqid & OCRDMA_AE_MCQE_CQID_MASK; /* * Some FW version returns wrong qp or cq ids in CQEs. * Checking whether the IDs are valid */ if (cqe->qpvalid_qpid & OCRDMA_AE_MCQE_QPVALID) { if (qpid < dev->attr.max_qp) qp = dev->qp_tbl[qpid]; if (qp == NULL) { pr_err("ocrdma%d:Async event - qpid %u is not valid\n", dev->id, qpid); return; } } if (cqe->cqvalid_cqid & OCRDMA_AE_MCQE_CQVALID) { if (cqid < dev->attr.max_cq) cq = dev->cq_tbl[cqid]; if (cq == NULL) { pr_err("ocrdma%d:Async event - cqid %u is not valid\n", dev->id, cqid); return; } } memset(&ib_evt, 0, sizeof(ib_evt)); ib_evt.device = &dev->ibdev; switch (type) { case OCRDMA_CQ_ERROR: ib_evt.element.cq = &cq->ibcq; ib_evt.event = IB_EVENT_CQ_ERR; cq_event = 1; qp_event = 0; break; case OCRDMA_CQ_OVERRUN_ERROR: ib_evt.element.cq = &cq->ibcq; ib_evt.event = IB_EVENT_CQ_ERR; cq_event = 1; qp_event = 0; break; case OCRDMA_CQ_QPCAT_ERROR: ib_evt.element.qp = &qp->ibqp; ib_evt.event = IB_EVENT_QP_FATAL; ocrdma_process_qpcat_error(dev, qp); break; case OCRDMA_QP_ACCESS_ERROR: ib_evt.element.qp = &qp->ibqp; ib_evt.event = IB_EVENT_QP_ACCESS_ERR; break; case OCRDMA_QP_COMM_EST_EVENT: ib_evt.element.qp = &qp->ibqp; ib_evt.event = IB_EVENT_COMM_EST; break; case OCRDMA_SQ_DRAINED_EVENT: ib_evt.element.qp = &qp->ibqp; ib_evt.event = IB_EVENT_SQ_DRAINED; break; case OCRDMA_DEVICE_FATAL_EVENT: ib_evt.element.port_num = 1; ib_evt.event = IB_EVENT_DEVICE_FATAL; qp_event = 0; dev_event = 1; break; case OCRDMA_SRQCAT_ERROR: ib_evt.element.srq = &qp->srq->ibsrq; ib_evt.event = IB_EVENT_SRQ_ERR; srq_event = 1; qp_event = 0; break; case OCRDMA_SRQ_LIMIT_EVENT: ib_evt.element.srq = &qp->srq->ibsrq; ib_evt.event = IB_EVENT_SRQ_LIMIT_REACHED; srq_event = 1; qp_event = 0; break; case OCRDMA_QP_LAST_WQE_EVENT: ib_evt.element.qp = &qp->ibqp; ib_evt.event = IB_EVENT_QP_LAST_WQE_REACHED; break; default: cq_event = 0; qp_event = 0; srq_event = 0; dev_event = 0; pr_err("%s() unknown type=0x%x\n", __func__, type); break; } if (type < OCRDMA_MAX_ASYNC_ERRORS) atomic_inc(&dev->async_err_stats[type]); if (qp_event) { if (qp->ibqp.event_handler) qp->ibqp.event_handler(&ib_evt, qp->ibqp.qp_context); } else if (cq_event) { if (cq->ibcq.event_handler) cq->ibcq.event_handler(&ib_evt, cq->ibcq.cq_context); } else if (srq_event) { if (qp->srq->ibsrq.event_handler) qp->srq->ibsrq.event_handler(&ib_evt, qp->srq->ibsrq. srq_context); } else if (dev_event) { dev_err(&dev->ibdev.dev, "Fatal event received\n"); ib_dispatch_event(&ib_evt); } } static void ocrdma_process_grp5_aync(struct ocrdma_dev *dev, struct ocrdma_ae_mcqe *cqe) { struct ocrdma_ae_pvid_mcqe *evt; int type = (cqe->valid_ae_event & OCRDMA_AE_MCQE_EVENT_TYPE_MASK) >> OCRDMA_AE_MCQE_EVENT_TYPE_SHIFT; switch (type) { case OCRDMA_ASYNC_EVENT_PVID_STATE: evt = (struct ocrdma_ae_pvid_mcqe *)cqe; if ((evt->tag_enabled & OCRDMA_AE_PVID_MCQE_ENABLED_MASK) >> OCRDMA_AE_PVID_MCQE_ENABLED_SHIFT) dev->pvid = ((evt->tag_enabled & OCRDMA_AE_PVID_MCQE_TAG_MASK) >> OCRDMA_AE_PVID_MCQE_TAG_SHIFT); break; case OCRDMA_ASYNC_EVENT_COS_VALUE: atomic_set(&dev->update_sl, 1); break; default: /* Not interested evts. */ break; } } static void ocrdma_process_link_state(struct ocrdma_dev *dev, struct ocrdma_ae_mcqe *cqe) { struct ocrdma_ae_lnkst_mcqe *evt; u8 lstate; evt = (struct ocrdma_ae_lnkst_mcqe *)cqe; lstate = ocrdma_get_ae_link_state(evt->speed_state_ptn); if (!(lstate & OCRDMA_AE_LSC_LLINK_MASK)) return; if (dev->flags & OCRDMA_FLAGS_LINK_STATUS_INIT) ocrdma_update_link_state(dev, (lstate & OCRDMA_LINK_ST_MASK)); } static void ocrdma_process_acqe(struct ocrdma_dev *dev, void *ae_cqe) { /* async CQE processing */ struct ocrdma_ae_mcqe *cqe = ae_cqe; u32 evt_code = (cqe->valid_ae_event & OCRDMA_AE_MCQE_EVENT_CODE_MASK) >> OCRDMA_AE_MCQE_EVENT_CODE_SHIFT; switch (evt_code) { case OCRDMA_ASYNC_LINK_EVE_CODE: ocrdma_process_link_state(dev, cqe); break; case OCRDMA_ASYNC_RDMA_EVE_CODE: ocrdma_dispatch_ibevent(dev, cqe); break; case OCRDMA_ASYNC_GRP5_EVE_CODE: ocrdma_process_grp5_aync(dev, cqe); break; default: pr_err("%s(%d) invalid evt code=0x%x\n", __func__, dev->id, evt_code); } } static void ocrdma_process_mcqe(struct ocrdma_dev *dev, struct ocrdma_mcqe *cqe) { if (dev->mqe_ctx.tag == cqe->tag_lo && dev->mqe_ctx.cmd_done == false) { dev->mqe_ctx.cqe_status = (cqe->status & OCRDMA_MCQE_STATUS_MASK) >> OCRDMA_MCQE_STATUS_SHIFT; dev->mqe_ctx.ext_status = (cqe->status & OCRDMA_MCQE_ESTATUS_MASK) >> OCRDMA_MCQE_ESTATUS_SHIFT; dev->mqe_ctx.cmd_done = true; wake_up(&dev->mqe_ctx.cmd_wait); } else pr_err("%s() cqe for invalid tag0x%x.expected=0x%x\n", __func__, cqe->tag_lo, dev->mqe_ctx.tag); } static int ocrdma_mq_cq_handler(struct ocrdma_dev *dev, u16 cq_id) { u16 cqe_popped = 0; struct ocrdma_mcqe *cqe; while (1) { cqe = ocrdma_get_mcqe(dev); if (cqe == NULL) break; ocrdma_le32_to_cpu(cqe, sizeof(*cqe)); cqe_popped += 1; if (cqe->valid_ae_cmpl_cons & OCRDMA_MCQE_AE_MASK) ocrdma_process_acqe(dev, cqe); else if (cqe->valid_ae_cmpl_cons & OCRDMA_MCQE_CMPL_MASK) ocrdma_process_mcqe(dev, cqe); memset(cqe, 0, sizeof(struct ocrdma_mcqe)); ocrdma_mcq_inc_tail(dev); } ocrdma_ring_cq_db(dev, dev->mq.cq.id, true, false, cqe_popped); return 0; } static struct ocrdma_cq *_ocrdma_qp_buddy_cq_handler(struct ocrdma_dev *dev, struct ocrdma_cq *cq, bool sq) { struct ocrdma_qp *qp; struct list_head *cur; struct ocrdma_cq *bcq = NULL; struct list_head *head = sq?(&cq->sq_head):(&cq->rq_head); list_for_each(cur, head) { if (sq) qp = list_entry(cur, struct ocrdma_qp, sq_entry); else qp = list_entry(cur, struct ocrdma_qp, rq_entry); if (qp->srq) continue; /* if wq and rq share the same cq, than comp_handler * is already invoked. */ if (qp->sq_cq == qp->rq_cq) continue; /* if completion came on sq, rq's cq is buddy cq. * if completion came on rq, sq's cq is buddy cq. */ if (qp->sq_cq == cq) bcq = qp->rq_cq; else bcq = qp->sq_cq; return bcq; } return NULL; } static void ocrdma_qp_buddy_cq_handler(struct ocrdma_dev *dev, struct ocrdma_cq *cq) { unsigned long flags; struct ocrdma_cq *bcq = NULL; /* Go through list of QPs in error state which are using this CQ * and invoke its callback handler to trigger CQE processing for * error/flushed CQE. It is rare to find more than few entries in * this list as most consumers stops after getting error CQE. * List is traversed only once when a matching buddy cq found for a QP. */ spin_lock_irqsave(&dev->flush_q_lock, flags); /* Check if buddy CQ is present. * true - Check for SQ CQ * false - Check for RQ CQ */ bcq = _ocrdma_qp_buddy_cq_handler(dev, cq, true); if (bcq == NULL) bcq = _ocrdma_qp_buddy_cq_handler(dev, cq, false); spin_unlock_irqrestore(&dev->flush_q_lock, flags); /* if there is valid buddy cq, look for its completion handler */ if (bcq && bcq->ibcq.comp_handler) { spin_lock_irqsave(&bcq->comp_handler_lock, flags); (*bcq->ibcq.comp_handler) (&bcq->ibcq, bcq->ibcq.cq_context); spin_unlock_irqrestore(&bcq->comp_handler_lock, flags); } } static void ocrdma_qp_cq_handler(struct ocrdma_dev *dev, u16 cq_idx) { unsigned long flags; struct ocrdma_cq *cq; if (cq_idx >= OCRDMA_MAX_CQ) BUG(); cq = dev->cq_tbl[cq_idx]; if (cq == NULL) return; if (cq->ibcq.comp_handler) { spin_lock_irqsave(&cq->comp_handler_lock, flags); (*cq->ibcq.comp_handler) (&cq->ibcq, cq->ibcq.cq_context); spin_unlock_irqrestore(&cq->comp_handler_lock, flags); } ocrdma_qp_buddy_cq_handler(dev, cq); } static void ocrdma_cq_handler(struct ocrdma_dev *dev, u16 cq_id) { /* process the MQ-CQE. */ if (cq_id == dev->mq.cq.id) ocrdma_mq_cq_handler(dev, cq_id); else ocrdma_qp_cq_handler(dev, cq_id); } static irqreturn_t ocrdma_irq_handler(int irq, void *handle) { struct ocrdma_eq *eq = handle; struct ocrdma_dev *dev = eq->dev; struct ocrdma_eqe eqe; struct ocrdma_eqe *ptr; u16 cq_id; u8 mcode; int budget = eq->cq_cnt; do { ptr = ocrdma_get_eqe(eq); eqe = *ptr; ocrdma_le32_to_cpu(&eqe, sizeof(eqe)); mcode = (eqe.id_valid & OCRDMA_EQE_MAJOR_CODE_MASK) >> OCRDMA_EQE_MAJOR_CODE_SHIFT; if (mcode == OCRDMA_MAJOR_CODE_SENTINAL) pr_err("EQ full on eqid = 0x%x, eqe = 0x%x\n", eq->q.id, eqe.id_valid); if ((eqe.id_valid & OCRDMA_EQE_VALID_MASK) == 0) break; ptr->id_valid = 0; /* ring eq doorbell as soon as its consumed. */ ocrdma_ring_eq_db(dev, eq->q.id, false, true, 1); /* check whether its CQE or not. */ if ((eqe.id_valid & OCRDMA_EQE_FOR_CQE_MASK) == 0) { cq_id = eqe.id_valid >> OCRDMA_EQE_RESOURCE_ID_SHIFT; ocrdma_cq_handler(dev, cq_id); } ocrdma_eq_inc_tail(eq); /* There can be a stale EQE after the last bound CQ is * destroyed. EQE valid and budget == 0 implies this. */ if (budget) budget--; } while (budget); eq->aic_obj.eq_intr_cnt++; ocrdma_ring_eq_db(dev, eq->q.id, true, true, 0); return IRQ_HANDLED; } static void ocrdma_post_mqe(struct ocrdma_dev *dev, struct ocrdma_mqe *cmd) { struct ocrdma_mqe *mqe; dev->mqe_ctx.tag = dev->mq.sq.head; dev->mqe_ctx.cmd_done = false; mqe = ocrdma_get_mqe(dev); cmd->hdr.tag_lo = dev->mq.sq.head; ocrdma_copy_cpu_to_le32(mqe, cmd, sizeof(*mqe)); /* make sure descriptor is written before ringing doorbell */ wmb(); ocrdma_mq_inc_head(dev); ocrdma_ring_mq_db(dev); } static int ocrdma_wait_mqe_cmpl(struct ocrdma_dev *dev) { long status; /* 30 sec timeout */ status = wait_event_timeout(dev->mqe_ctx.cmd_wait, (dev->mqe_ctx.cmd_done != false), msecs_to_jiffies(30000)); if (status) return 0; else { dev->mqe_ctx.fw_error_state = true; pr_err("%s(%d) mailbox timeout: fw not responding\n", __func__, dev->id); return -1; } } /* issue a mailbox command on the MQ */ static int ocrdma_mbx_cmd(struct ocrdma_dev *dev, struct ocrdma_mqe *mqe) { int status = 0; u16 cqe_status, ext_status; struct ocrdma_mqe *rsp_mqe; struct ocrdma_mbx_rsp *rsp = NULL; mutex_lock(&dev->mqe_ctx.lock); if (dev->mqe_ctx.fw_error_state) goto mbx_err; ocrdma_post_mqe(dev, mqe); status = ocrdma_wait_mqe_cmpl(dev); if (status) goto mbx_err; cqe_status = dev->mqe_ctx.cqe_status; ext_status = dev->mqe_ctx.ext_status; rsp_mqe = ocrdma_get_mqe_rsp(dev); ocrdma_copy_le32_to_cpu(mqe, rsp_mqe, (sizeof(*mqe))); if ((mqe->hdr.spcl_sge_cnt_emb & OCRDMA_MQE_HDR_EMB_MASK) >> OCRDMA_MQE_HDR_EMB_SHIFT) rsp = &mqe->u.rsp; if (cqe_status || ext_status) { pr_err("%s() cqe_status=0x%x, ext_status=0x%x,\n", __func__, cqe_status, ext_status); if (rsp) { /* This is for embedded cmds. */ pr_err("opcode=0x%x, subsystem=0x%x\n", (rsp->subsys_op & OCRDMA_MBX_RSP_OPCODE_MASK) >> OCRDMA_MBX_RSP_OPCODE_SHIFT, (rsp->subsys_op & OCRDMA_MBX_RSP_SUBSYS_MASK) >> OCRDMA_MBX_RSP_SUBSYS_SHIFT); } status = ocrdma_get_mbx_cqe_errno(cqe_status); goto mbx_err; } /* For non embedded, rsp errors are handled in ocrdma_nonemb_mbx_cmd */ if (rsp && (mqe->u.rsp.status & OCRDMA_MBX_RSP_STATUS_MASK)) status = ocrdma_get_mbx_errno(mqe->u.rsp.status); mbx_err: mutex_unlock(&dev->mqe_ctx.lock); return status; } static int ocrdma_nonemb_mbx_cmd(struct ocrdma_dev *dev, struct ocrdma_mqe *mqe, void *payload_va) { int status; struct ocrdma_mbx_rsp *rsp = payload_va; if ((mqe->hdr.spcl_sge_cnt_emb & OCRDMA_MQE_HDR_EMB_MASK) >> OCRDMA_MQE_HDR_EMB_SHIFT) BUG(); status = ocrdma_mbx_cmd(dev, mqe); if (!status) /* For non embedded, only CQE failures are handled in * ocrdma_mbx_cmd. We need to check for RSP errors. */ if (rsp->status & OCRDMA_MBX_RSP_STATUS_MASK) status = ocrdma_get_mbx_errno(rsp->status); if (status) pr_err("opcode=0x%x, subsystem=0x%x\n", (rsp->subsys_op & OCRDMA_MBX_RSP_OPCODE_MASK) >> OCRDMA_MBX_RSP_OPCODE_SHIFT, (rsp->subsys_op & OCRDMA_MBX_RSP_SUBSYS_MASK) >> OCRDMA_MBX_RSP_SUBSYS_SHIFT); return status; } static void ocrdma_get_attr(struct ocrdma_dev *dev, struct ocrdma_dev_attr *attr, struct ocrdma_mbx_query_config *rsp) { attr->max_pd = (rsp->max_pd_ca_ack_delay & OCRDMA_MBX_QUERY_CFG_MAX_PD_MASK) >> OCRDMA_MBX_QUERY_CFG_MAX_PD_SHIFT; attr->udp_encap = (rsp->max_pd_ca_ack_delay & OCRDMA_MBX_QUERY_CFG_L3_TYPE_MASK) >> OCRDMA_MBX_QUERY_CFG_L3_TYPE_SHIFT; attr->max_dpp_pds = (rsp->max_dpp_pds_credits & OCRDMA_MBX_QUERY_CFG_MAX_DPP_PDS_MASK) >> OCRDMA_MBX_QUERY_CFG_MAX_DPP_PDS_OFFSET; attr->max_qp = (rsp->qp_srq_cq_ird_ord & OCRDMA_MBX_QUERY_CFG_MAX_QP_MASK) >> OCRDMA_MBX_QUERY_CFG_MAX_QP_SHIFT; attr->max_srq = (rsp->max_srq_rpir_qps & OCRDMA_MBX_QUERY_CFG_MAX_SRQ_MASK) >> OCRDMA_MBX_QUERY_CFG_MAX_SRQ_OFFSET; attr->max_send_sge = ((rsp->max_recv_send_sge & OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_MASK) >> OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_SHIFT); attr->max_recv_sge = (rsp->max_recv_send_sge & OCRDMA_MBX_QUERY_CFG_MAX_RECV_SGE_MASK) >> OCRDMA_MBX_QUERY_CFG_MAX_RECV_SGE_SHIFT; attr->max_srq_sge = (rsp->max_srq_rqe_sge & OCRDMA_MBX_QUERY_CFG_MAX_SRQ_SGE_MASK) >> OCRDMA_MBX_QUERY_CFG_MAX_SRQ_SGE_OFFSET; attr->max_rdma_sge = (rsp->max_wr_rd_sge & OCRDMA_MBX_QUERY_CFG_MAX_RD_SGE_MASK) >> OCRDMA_MBX_QUERY_CFG_MAX_RD_SGE_SHIFT; attr->max_ord_per_qp = (rsp->max_ird_ord_per_qp & OCRDMA_MBX_QUERY_CFG_MAX_ORD_PER_QP_MASK) >> OCRDMA_MBX_QUERY_CFG_MAX_ORD_PER_QP_SHIFT; attr->max_ird_per_qp = (rsp->max_ird_ord_per_qp & OCRDMA_MBX_QUERY_CFG_MAX_IRD_PER_QP_MASK) >> OCRDMA_MBX_QUERY_CFG_MAX_IRD_PER_QP_SHIFT; attr->cq_overflow_detect = (rsp->qp_srq_cq_ird_ord & OCRDMA_MBX_QUERY_CFG_CQ_OVERFLOW_MASK) >> OCRDMA_MBX_QUERY_CFG_CQ_OVERFLOW_SHIFT; attr->srq_supported = (rsp->qp_srq_cq_ird_ord & OCRDMA_MBX_QUERY_CFG_SRQ_SUPPORTED_MASK) >> OCRDMA_MBX_QUERY_CFG_SRQ_SUPPORTED_SHIFT; attr->local_ca_ack_delay = (rsp->max_pd_ca_ack_delay & OCRDMA_MBX_QUERY_CFG_CA_ACK_DELAY_MASK) >> OCRDMA_MBX_QUERY_CFG_CA_ACK_DELAY_SHIFT; attr->max_mw = rsp->max_mw; attr->max_mr = rsp->max_mr; attr->max_mr_size = ((u64)rsp->max_mr_size_hi << 32) | rsp->max_mr_size_lo; attr->max_pages_per_frmr = rsp->max_pages_per_frmr; attr->max_num_mr_pbl = rsp->max_num_mr_pbl; attr->max_cqe = rsp->max_cq_cqes_per_cq & OCRDMA_MBX_QUERY_CFG_MAX_CQES_PER_CQ_MASK; attr->max_cq = (rsp->max_cq_cqes_per_cq & OCRDMA_MBX_QUERY_CFG_MAX_CQ_MASK) >> OCRDMA_MBX_QUERY_CFG_MAX_CQ_OFFSET; attr->wqe_size = ((rsp->wqe_rqe_stride_max_dpp_cqs & OCRDMA_MBX_QUERY_CFG_MAX_WQE_SIZE_MASK) >> OCRDMA_MBX_QUERY_CFG_MAX_WQE_SIZE_OFFSET) * OCRDMA_WQE_STRIDE; attr->rqe_size = ((rsp->wqe_rqe_stride_max_dpp_cqs & OCRDMA_MBX_QUERY_CFG_MAX_RQE_SIZE_MASK) >> OCRDMA_MBX_QUERY_CFG_MAX_RQE_SIZE_OFFSET) * OCRDMA_WQE_STRIDE; attr->max_inline_data = attr->wqe_size - (sizeof(struct ocrdma_hdr_wqe) + sizeof(struct ocrdma_sge)); if (ocrdma_get_asic_type(dev) == OCRDMA_ASIC_GEN_SKH_R) { attr->ird = 1; attr->ird_page_size = OCRDMA_MIN_Q_PAGE_SIZE; attr->num_ird_pages = MAX_OCRDMA_IRD_PAGES; } dev->attr.max_wqe = rsp->max_wqes_rqes_per_q >> OCRDMA_MBX_QUERY_CFG_MAX_WQES_PER_WQ_OFFSET; dev->attr.max_rqe = rsp->max_wqes_rqes_per_q & OCRDMA_MBX_QUERY_CFG_MAX_RQES_PER_RQ_MASK; } static int ocrdma_check_fw_config(struct ocrdma_dev *dev, struct ocrdma_fw_conf_rsp *conf) { u32 fn_mode; fn_mode = conf->fn_mode & OCRDMA_FN_MODE_RDMA; if (fn_mode != OCRDMA_FN_MODE_RDMA) return -EINVAL; dev->base_eqid = conf->base_eqid; dev->max_eq = conf->max_eq; return 0; } /* can be issued only during init time. */ static int ocrdma_mbx_query_fw_ver(struct ocrdma_dev *dev) { int status = -ENOMEM; struct ocrdma_mqe *cmd; struct ocrdma_fw_ver_rsp *rsp; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_GET_FW_VER, sizeof(*cmd)); if (!cmd) return -ENOMEM; ocrdma_init_mch((struct ocrdma_mbx_hdr *)&cmd->u.cmd[0], OCRDMA_CMD_GET_FW_VER, OCRDMA_SUBSYS_COMMON, sizeof(*cmd)); status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); if (status) goto mbx_err; rsp = (struct ocrdma_fw_ver_rsp *)cmd; memset(&dev->attr.fw_ver[0], 0, sizeof(dev->attr.fw_ver)); memcpy(&dev->attr.fw_ver[0], &rsp->running_ver[0], sizeof(rsp->running_ver)); ocrdma_le32_to_cpu(dev->attr.fw_ver, sizeof(rsp->running_ver)); mbx_err: kfree(cmd); return status; } /* can be issued only during init time. */ static int ocrdma_mbx_query_fw_config(struct ocrdma_dev *dev) { int status = -ENOMEM; struct ocrdma_mqe *cmd; struct ocrdma_fw_conf_rsp *rsp; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_GET_FW_CONFIG, sizeof(*cmd)); if (!cmd) return -ENOMEM; ocrdma_init_mch((struct ocrdma_mbx_hdr *)&cmd->u.cmd[0], OCRDMA_CMD_GET_FW_CONFIG, OCRDMA_SUBSYS_COMMON, sizeof(*cmd)); status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); if (status) goto mbx_err; rsp = (struct ocrdma_fw_conf_rsp *)cmd; status = ocrdma_check_fw_config(dev, rsp); mbx_err: kfree(cmd); return status; } int ocrdma_mbx_rdma_stats(struct ocrdma_dev *dev, bool reset) { struct ocrdma_rdma_stats_req *req = dev->stats_mem.va; struct ocrdma_mqe *mqe = &dev->stats_mem.mqe; struct ocrdma_rdma_stats_resp *old_stats; int status; old_stats = kmalloc(sizeof(*old_stats), GFP_KERNEL); if (old_stats == NULL) return -ENOMEM; memset(mqe, 0, sizeof(*mqe)); mqe->hdr.pyld_len = dev->stats_mem.size; mqe->hdr.spcl_sge_cnt_emb |= (1 << OCRDMA_MQE_HDR_SGE_CNT_SHIFT) & OCRDMA_MQE_HDR_SGE_CNT_MASK; mqe->u.nonemb_req.sge[0].pa_lo = (u32) (dev->stats_mem.pa & 0xffffffff); mqe->u.nonemb_req.sge[0].pa_hi = (u32) upper_32_bits(dev->stats_mem.pa); mqe->u.nonemb_req.sge[0].len = dev->stats_mem.size; /* Cache the old stats */ memcpy(old_stats, req, sizeof(struct ocrdma_rdma_stats_resp)); memset(req, 0, dev->stats_mem.size); ocrdma_init_mch((struct ocrdma_mbx_hdr *)req, OCRDMA_CMD_GET_RDMA_STATS, OCRDMA_SUBSYS_ROCE, dev->stats_mem.size); if (reset) req->reset_stats = reset; status = ocrdma_nonemb_mbx_cmd(dev, mqe, dev->stats_mem.va); if (status) /* Copy from cache, if mbox fails */ memcpy(req, old_stats, sizeof(struct ocrdma_rdma_stats_resp)); else ocrdma_le32_to_cpu(req, dev->stats_mem.size); kfree(old_stats); return status; } static int ocrdma_mbx_get_ctrl_attribs(struct ocrdma_dev *dev) { int status = -ENOMEM; struct ocrdma_dma_mem dma; struct ocrdma_mqe *mqe; struct ocrdma_get_ctrl_attribs_rsp *ctrl_attr_rsp; struct mgmt_hba_attribs *hba_attribs; mqe = kzalloc(sizeof(struct ocrdma_mqe), GFP_KERNEL); if (!mqe) return status; dma.size = sizeof(struct ocrdma_get_ctrl_attribs_rsp); dma.va = dma_alloc_coherent(&dev->nic_info.pdev->dev, dma.size, &dma.pa, GFP_KERNEL); if (!dma.va) goto free_mqe; mqe->hdr.pyld_len = dma.size; mqe->hdr.spcl_sge_cnt_emb |= (1 << OCRDMA_MQE_HDR_SGE_CNT_SHIFT) & OCRDMA_MQE_HDR_SGE_CNT_MASK; mqe->u.nonemb_req.sge[0].pa_lo = (u32) (dma.pa & 0xffffffff); mqe->u.nonemb_req.sge[0].pa_hi = (u32) upper_32_bits(dma.pa); mqe->u.nonemb_req.sge[0].len = dma.size; ocrdma_init_mch((struct ocrdma_mbx_hdr *)dma.va, OCRDMA_CMD_GET_CTRL_ATTRIBUTES, OCRDMA_SUBSYS_COMMON, dma.size); status = ocrdma_nonemb_mbx_cmd(dev, mqe, dma.va); if (!status) { ctrl_attr_rsp = (struct ocrdma_get_ctrl_attribs_rsp *)dma.va; hba_attribs = &ctrl_attr_rsp->ctrl_attribs.hba_attribs; dev->hba_port_num = (hba_attribs->ptpnum_maxdoms_hbast_cv & OCRDMA_HBA_ATTRB_PTNUM_MASK) >> OCRDMA_HBA_ATTRB_PTNUM_SHIFT; strscpy(dev->model_number, hba_attribs->controller_model_number, sizeof(dev->model_number)); } dma_free_coherent(&dev->nic_info.pdev->dev, dma.size, dma.va, dma.pa); free_mqe: kfree(mqe); return status; } static int ocrdma_mbx_query_dev(struct ocrdma_dev *dev) { int status = -ENOMEM; struct ocrdma_mbx_query_config *rsp; struct ocrdma_mqe *cmd; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_QUERY_CONFIG, sizeof(*cmd)); if (!cmd) return status; status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); if (status) goto mbx_err; rsp = (struct ocrdma_mbx_query_config *)cmd; ocrdma_get_attr(dev, &dev->attr, rsp); mbx_err: kfree(cmd); return status; } int ocrdma_mbx_get_link_speed(struct ocrdma_dev *dev, u8 *lnk_speed, u8 *lnk_state) { int status = -ENOMEM; struct ocrdma_get_link_speed_rsp *rsp; struct ocrdma_mqe *cmd; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_QUERY_NTWK_LINK_CONFIG_V1, sizeof(*cmd)); if (!cmd) return status; ocrdma_init_mch((struct ocrdma_mbx_hdr *)&cmd->u.cmd[0], OCRDMA_CMD_QUERY_NTWK_LINK_CONFIG_V1, OCRDMA_SUBSYS_COMMON, sizeof(*cmd)); ((struct ocrdma_mbx_hdr *)cmd->u.cmd)->rsvd_version = 0x1; status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); if (status) goto mbx_err; rsp = (struct ocrdma_get_link_speed_rsp *)cmd; if (lnk_speed) *lnk_speed = (rsp->pflt_pps_ld_pnum & OCRDMA_PHY_PS_MASK) >> OCRDMA_PHY_PS_SHIFT; if (lnk_state) *lnk_state = (rsp->res_lnk_st & OCRDMA_LINK_ST_MASK); mbx_err: kfree(cmd); return status; } static int ocrdma_mbx_get_phy_info(struct ocrdma_dev *dev) { int status = -ENOMEM; struct ocrdma_mqe *cmd; struct ocrdma_get_phy_info_rsp *rsp; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_PHY_DETAILS, sizeof(*cmd)); if (!cmd) return status; ocrdma_init_mch((struct ocrdma_mbx_hdr *)&cmd->u.cmd[0], OCRDMA_CMD_PHY_DETAILS, OCRDMA_SUBSYS_COMMON, sizeof(*cmd)); status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); if (status) goto mbx_err; rsp = (struct ocrdma_get_phy_info_rsp *)cmd; dev->phy.phy_type = (rsp->ityp_ptyp & OCRDMA_PHY_TYPE_MASK); dev->phy.interface_type = (rsp->ityp_ptyp & OCRDMA_IF_TYPE_MASK) >> OCRDMA_IF_TYPE_SHIFT; dev->phy.auto_speeds_supported = (rsp->fspeed_aspeed & OCRDMA_ASPEED_SUPP_MASK); dev->phy.fixed_speeds_supported = (rsp->fspeed_aspeed & OCRDMA_FSPEED_SUPP_MASK) >> OCRDMA_FSPEED_SUPP_SHIFT; mbx_err: kfree(cmd); return status; } int ocrdma_mbx_alloc_pd(struct ocrdma_dev *dev, struct ocrdma_pd *pd) { int status = -ENOMEM; struct ocrdma_alloc_pd *cmd; struct ocrdma_alloc_pd_rsp *rsp; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_ALLOC_PD, sizeof(*cmd)); if (!cmd) return status; if (pd->dpp_enabled) cmd->enable_dpp_rsvd |= OCRDMA_ALLOC_PD_ENABLE_DPP; status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); if (status) goto mbx_err; rsp = (struct ocrdma_alloc_pd_rsp *)cmd; pd->id = rsp->dpp_page_pdid & OCRDMA_ALLOC_PD_RSP_PDID_MASK; if (rsp->dpp_page_pdid & OCRDMA_ALLOC_PD_RSP_DPP) { pd->dpp_enabled = true; pd->dpp_page = rsp->dpp_page_pdid >> OCRDMA_ALLOC_PD_RSP_DPP_PAGE_SHIFT; } else { pd->dpp_enabled = false; pd->num_dpp_qp = 0; } mbx_err: kfree(cmd); return status; } int ocrdma_mbx_dealloc_pd(struct ocrdma_dev *dev, struct ocrdma_pd *pd) { int status = -ENOMEM; struct ocrdma_dealloc_pd *cmd; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DEALLOC_PD, sizeof(*cmd)); if (!cmd) return status; cmd->id = pd->id; status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); kfree(cmd); return status; } static int ocrdma_mbx_alloc_pd_range(struct ocrdma_dev *dev) { int status = -ENOMEM; struct ocrdma_alloc_pd_range *cmd; struct ocrdma_alloc_pd_range_rsp *rsp; /* Pre allocate the DPP PDs */ if (dev->attr.max_dpp_pds) { cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_ALLOC_PD_RANGE, sizeof(*cmd)); if (!cmd) return -ENOMEM; cmd->pd_count = dev->attr.max_dpp_pds; cmd->enable_dpp_rsvd |= OCRDMA_ALLOC_PD_ENABLE_DPP; status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); rsp = (struct ocrdma_alloc_pd_range_rsp *)cmd; if (!status && (rsp->dpp_page_pdid & OCRDMA_ALLOC_PD_RSP_DPP) && rsp->pd_count) { dev->pd_mgr->dpp_page_index = rsp->dpp_page_pdid >> OCRDMA_ALLOC_PD_RSP_DPP_PAGE_SHIFT; dev->pd_mgr->pd_dpp_start = rsp->dpp_page_pdid & OCRDMA_ALLOC_PD_RNG_RSP_START_PDID_MASK; dev->pd_mgr->max_dpp_pd = rsp->pd_count; dev->pd_mgr->pd_dpp_bitmap = bitmap_zalloc(rsp->pd_count, GFP_KERNEL); } kfree(cmd); } cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_ALLOC_PD_RANGE, sizeof(*cmd)); if (!cmd) return -ENOMEM; cmd->pd_count = dev->attr.max_pd - dev->attr.max_dpp_pds; status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); rsp = (struct ocrdma_alloc_pd_range_rsp *)cmd; if (!status && rsp->pd_count) { dev->pd_mgr->pd_norm_start = rsp->dpp_page_pdid & OCRDMA_ALLOC_PD_RNG_RSP_START_PDID_MASK; dev->pd_mgr->max_normal_pd = rsp->pd_count; dev->pd_mgr->pd_norm_bitmap = bitmap_zalloc(rsp->pd_count, GFP_KERNEL); } kfree(cmd); if (dev->pd_mgr->pd_norm_bitmap || dev->pd_mgr->pd_dpp_bitmap) { /* Enable PD resource manager */ dev->pd_mgr->pd_prealloc_valid = true; return 0; } return status; } static void ocrdma_mbx_dealloc_pd_range(struct ocrdma_dev *dev) { struct ocrdma_dealloc_pd_range *cmd; /* return normal PDs to firmware */ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DEALLOC_PD_RANGE, sizeof(*cmd)); if (!cmd) goto mbx_err; if (dev->pd_mgr->max_normal_pd) { cmd->start_pd_id = dev->pd_mgr->pd_norm_start; cmd->pd_count = dev->pd_mgr->max_normal_pd; ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); } if (dev->pd_mgr->max_dpp_pd) { kfree(cmd); /* return DPP PDs to firmware */ cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DEALLOC_PD_RANGE, sizeof(*cmd)); if (!cmd) goto mbx_err; cmd->start_pd_id = dev->pd_mgr->pd_dpp_start; cmd->pd_count = dev->pd_mgr->max_dpp_pd; ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); } mbx_err: kfree(cmd); } void ocrdma_alloc_pd_pool(struct ocrdma_dev *dev) { int status; dev->pd_mgr = kzalloc(sizeof(struct ocrdma_pd_resource_mgr), GFP_KERNEL); if (!dev->pd_mgr) return; status = ocrdma_mbx_alloc_pd_range(dev); if (status) { pr_err("%s(%d) Unable to initialize PD pool, using default.\n", __func__, dev->id); } } static void ocrdma_free_pd_pool(struct ocrdma_dev *dev) { ocrdma_mbx_dealloc_pd_range(dev); bitmap_free(dev->pd_mgr->pd_norm_bitmap); bitmap_free(dev->pd_mgr->pd_dpp_bitmap); kfree(dev->pd_mgr); } static int ocrdma_build_q_conf(u32 *num_entries, int entry_size, int *num_pages, int *page_size) { int i; int mem_size; *num_entries = roundup_pow_of_two(*num_entries); mem_size = *num_entries * entry_size; /* find the possible lowest possible multiplier */ for (i = 0; i < OCRDMA_MAX_Q_PAGE_SIZE_CNT; i++) { if (mem_size <= (OCRDMA_Q_PAGE_BASE_SIZE << i)) break; } if (i >= OCRDMA_MAX_Q_PAGE_SIZE_CNT) return -EINVAL; mem_size = roundup(mem_size, ((OCRDMA_Q_PAGE_BASE_SIZE << i) / OCRDMA_MAX_Q_PAGES)); *num_pages = mem_size / ((OCRDMA_Q_PAGE_BASE_SIZE << i) / OCRDMA_MAX_Q_PAGES); *page_size = ((OCRDMA_Q_PAGE_BASE_SIZE << i) / OCRDMA_MAX_Q_PAGES); *num_entries = mem_size / entry_size; return 0; } static int ocrdma_mbx_create_ah_tbl(struct ocrdma_dev *dev) { int i; int status = -ENOMEM; int max_ah; struct ocrdma_create_ah_tbl *cmd; struct ocrdma_create_ah_tbl_rsp *rsp; struct pci_dev *pdev = dev->nic_info.pdev; dma_addr_t pa; struct ocrdma_pbe *pbes; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_AH_TBL, sizeof(*cmd)); if (!cmd) return status; max_ah = OCRDMA_MAX_AH; dev->av_tbl.size = sizeof(struct ocrdma_av) * max_ah; /* number of PBEs in PBL */ cmd->ah_conf = (OCRDMA_AH_TBL_PAGES << OCRDMA_CREATE_AH_NUM_PAGES_SHIFT) & OCRDMA_CREATE_AH_NUM_PAGES_MASK; /* page size */ for (i = 0; i < OCRDMA_MAX_Q_PAGE_SIZE_CNT; i++) { if (PAGE_SIZE == (OCRDMA_MIN_Q_PAGE_SIZE << i)) break; } cmd->ah_conf |= (i << OCRDMA_CREATE_AH_PAGE_SIZE_SHIFT) & OCRDMA_CREATE_AH_PAGE_SIZE_MASK; /* ah_entry size */ cmd->ah_conf |= (sizeof(struct ocrdma_av) << OCRDMA_CREATE_AH_ENTRY_SIZE_SHIFT) & OCRDMA_CREATE_AH_ENTRY_SIZE_MASK; dev->av_tbl.pbl.va = dma_alloc_coherent(&pdev->dev, PAGE_SIZE, &dev->av_tbl.pbl.pa, GFP_KERNEL); if (dev->av_tbl.pbl.va == NULL) goto mem_err; dev->av_tbl.va = dma_alloc_coherent(&pdev->dev, dev->av_tbl.size, &pa, GFP_KERNEL); if (dev->av_tbl.va == NULL) goto mem_err_ah; dev->av_tbl.pa = pa; dev->av_tbl.num_ah = max_ah; pbes = (struct ocrdma_pbe *)dev->av_tbl.pbl.va; for (i = 0; i < dev->av_tbl.size / OCRDMA_MIN_Q_PAGE_SIZE; i++) { pbes[i].pa_lo = (u32)cpu_to_le32(pa & 0xffffffff); pbes[i].pa_hi = (u32)cpu_to_le32(upper_32_bits(pa)); pa += PAGE_SIZE; } cmd->tbl_addr[0].lo = (u32)(dev->av_tbl.pbl.pa & 0xFFFFFFFF); cmd->tbl_addr[0].hi = (u32)upper_32_bits(dev->av_tbl.pbl.pa); status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); if (status) goto mbx_err; rsp = (struct ocrdma_create_ah_tbl_rsp *)cmd; dev->av_tbl.ahid = rsp->ahid & 0xFFFF; kfree(cmd); return 0; mbx_err: dma_free_coherent(&pdev->dev, dev->av_tbl.size, dev->av_tbl.va, dev->av_tbl.pa); dev->av_tbl.va = NULL; mem_err_ah: dma_free_coherent(&pdev->dev, PAGE_SIZE, dev->av_tbl.pbl.va, dev->av_tbl.pbl.pa); dev->av_tbl.pbl.va = NULL; dev->av_tbl.size = 0; mem_err: kfree(cmd); return status; } static void ocrdma_mbx_delete_ah_tbl(struct ocrdma_dev *dev) { struct ocrdma_delete_ah_tbl *cmd; struct pci_dev *pdev = dev->nic_info.pdev; if (dev->av_tbl.va == NULL) return; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DELETE_AH_TBL, sizeof(*cmd)); if (!cmd) return; cmd->ahid = dev->av_tbl.ahid; ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); dma_free_coherent(&pdev->dev, dev->av_tbl.size, dev->av_tbl.va, dev->av_tbl.pa); dev->av_tbl.va = NULL; dma_free_coherent(&pdev->dev, PAGE_SIZE, dev->av_tbl.pbl.va, dev->av_tbl.pbl.pa); kfree(cmd); } /* Multiple CQs uses the EQ. This routine returns least used * EQ to associate with CQ. This will distributes the interrupt * processing and CPU load to associated EQ, vector and so to that CPU. */ static u16 ocrdma_bind_eq(struct ocrdma_dev *dev) { int i, selected_eq = 0, cq_cnt = 0; u16 eq_id; mutex_lock(&dev->dev_lock); cq_cnt = dev->eq_tbl[0].cq_cnt; eq_id = dev->eq_tbl[0].q.id; /* find the EQ which is has the least number of * CQs associated with it. */ for (i = 0; i < dev->eq_cnt; i++) { if (dev->eq_tbl[i].cq_cnt < cq_cnt) { cq_cnt = dev->eq_tbl[i].cq_cnt; eq_id = dev->eq_tbl[i].q.id; selected_eq = i; } } dev->eq_tbl[selected_eq].cq_cnt += 1; mutex_unlock(&dev->dev_lock); return eq_id; } static void ocrdma_unbind_eq(struct ocrdma_dev *dev, u16 eq_id) { int i; mutex_lock(&dev->dev_lock); i = ocrdma_get_eq_table_index(dev, eq_id); if (i == -EINVAL) BUG(); dev->eq_tbl[i].cq_cnt -= 1; mutex_unlock(&dev->dev_lock); } int ocrdma_mbx_create_cq(struct ocrdma_dev *dev, struct ocrdma_cq *cq, int entries, int dpp_cq, u16 pd_id) { int status = -ENOMEM; int max_hw_cqe; struct pci_dev *pdev = dev->nic_info.pdev; struct ocrdma_create_cq *cmd; struct ocrdma_create_cq_rsp *rsp; u32 hw_pages, cqe_size, page_size, cqe_count; if (entries > dev->attr.max_cqe) { pr_err("%s(%d) max_cqe=0x%x, requester_cqe=0x%x\n", __func__, dev->id, dev->attr.max_cqe, entries); return -EINVAL; } if (dpp_cq && (ocrdma_get_asic_type(dev) != OCRDMA_ASIC_GEN_SKH_R)) return -EINVAL; if (dpp_cq) { cq->max_hw_cqe = 1; max_hw_cqe = 1; cqe_size = OCRDMA_DPP_CQE_SIZE; hw_pages = 1; } else { cq->max_hw_cqe = dev->attr.max_cqe; max_hw_cqe = dev->attr.max_cqe; cqe_size = sizeof(struct ocrdma_cqe); hw_pages = OCRDMA_CREATE_CQ_MAX_PAGES; } cq->len = roundup(max_hw_cqe * cqe_size, OCRDMA_MIN_Q_PAGE_SIZE); cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_CQ, sizeof(*cmd)); if (!cmd) return -ENOMEM; ocrdma_init_mch(&cmd->cmd.req, OCRDMA_CMD_CREATE_CQ, OCRDMA_SUBSYS_COMMON, sizeof(*cmd)); cq->va = dma_alloc_coherent(&pdev->dev, cq->len, &cq->pa, GFP_KERNEL); if (!cq->va) { status = -ENOMEM; goto mem_err; } page_size = cq->len / hw_pages; cmd->cmd.pgsz_pgcnt = (page_size / OCRDMA_MIN_Q_PAGE_SIZE) << OCRDMA_CREATE_CQ_PAGE_SIZE_SHIFT; cmd->cmd.pgsz_pgcnt |= hw_pages; cmd->cmd.ev_cnt_flags = OCRDMA_CREATE_CQ_DEF_FLAGS; cq->eqn = ocrdma_bind_eq(dev); cmd->cmd.req.rsvd_version = OCRDMA_CREATE_CQ_VER3; cqe_count = cq->len / cqe_size; cq->cqe_cnt = cqe_count; if (cqe_count > 1024) { /* Set cnt to 3 to indicate more than 1024 cq entries */ cmd->cmd.ev_cnt_flags |= (0x3 << OCRDMA_CREATE_CQ_CNT_SHIFT); } else { u8 count = 0; switch (cqe_count) { case 256: count = 0; break; case 512: count = 1; break; case 1024: count = 2; break; default: goto mbx_err; } cmd->cmd.ev_cnt_flags |= (count << OCRDMA_CREATE_CQ_CNT_SHIFT); } /* shared eq between all the consumer cqs. */ cmd->cmd.eqn = cq->eqn; if (ocrdma_get_asic_type(dev) == OCRDMA_ASIC_GEN_SKH_R) { if (dpp_cq) cmd->cmd.pgsz_pgcnt |= OCRDMA_CREATE_CQ_DPP << OCRDMA_CREATE_CQ_TYPE_SHIFT; cq->phase_change = false; cmd->cmd.pdid_cqecnt = (cq->len / cqe_size); } else { cmd->cmd.pdid_cqecnt = (cq->len / cqe_size) - 1; cmd->cmd.ev_cnt_flags |= OCRDMA_CREATE_CQ_FLAGS_AUTO_VALID; cq->phase_change = true; } /* pd_id valid only for v3 */ cmd->cmd.pdid_cqecnt |= (pd_id << OCRDMA_CREATE_CQ_CMD_PDID_SHIFT); ocrdma_build_q_pages(&cmd->cmd.pa[0], hw_pages, cq->pa, page_size); status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); if (status) goto mbx_err; rsp = (struct ocrdma_create_cq_rsp *)cmd; cq->id = (u16) (rsp->rsp.cq_id & OCRDMA_CREATE_CQ_RSP_CQ_ID_MASK); kfree(cmd); return 0; mbx_err: ocrdma_unbind_eq(dev, cq->eqn); dma_free_coherent(&pdev->dev, cq->len, cq->va, cq->pa); mem_err: kfree(cmd); return status; } void ocrdma_mbx_destroy_cq(struct ocrdma_dev *dev, struct ocrdma_cq *cq) { struct ocrdma_destroy_cq *cmd; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DELETE_CQ, sizeof(*cmd)); if (!cmd) return; ocrdma_init_mch(&cmd->req, OCRDMA_CMD_DELETE_CQ, OCRDMA_SUBSYS_COMMON, sizeof(*cmd)); cmd->bypass_flush_qid |= (cq->id << OCRDMA_DESTROY_CQ_QID_SHIFT) & OCRDMA_DESTROY_CQ_QID_MASK; ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); ocrdma_unbind_eq(dev, cq->eqn); dma_free_coherent(&dev->nic_info.pdev->dev, cq->len, cq->va, cq->pa); kfree(cmd); } int ocrdma_mbx_alloc_lkey(struct ocrdma_dev *dev, struct ocrdma_hw_mr *hwmr, u32 pdid, int addr_check) { int status = -ENOMEM; struct ocrdma_alloc_lkey *cmd; struct ocrdma_alloc_lkey_rsp *rsp; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_ALLOC_LKEY, sizeof(*cmd)); if (!cmd) return status; cmd->pdid = pdid; cmd->pbl_sz_flags |= addr_check; cmd->pbl_sz_flags |= (hwmr->fr_mr << OCRDMA_ALLOC_LKEY_FMR_SHIFT); cmd->pbl_sz_flags |= (hwmr->remote_wr << OCRDMA_ALLOC_LKEY_REMOTE_WR_SHIFT); cmd->pbl_sz_flags |= (hwmr->remote_rd << OCRDMA_ALLOC_LKEY_REMOTE_RD_SHIFT); cmd->pbl_sz_flags |= (hwmr->local_wr << OCRDMA_ALLOC_LKEY_LOCAL_WR_SHIFT); cmd->pbl_sz_flags |= (hwmr->remote_atomic << OCRDMA_ALLOC_LKEY_REMOTE_ATOMIC_SHIFT); cmd->pbl_sz_flags |= (hwmr->num_pbls << OCRDMA_ALLOC_LKEY_PBL_SIZE_SHIFT); status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); if (status) goto mbx_err; rsp = (struct ocrdma_alloc_lkey_rsp *)cmd; hwmr->lkey = rsp->lrkey; mbx_err: kfree(cmd); return status; } int ocrdma_mbx_dealloc_lkey(struct ocrdma_dev *dev, int fr_mr, u32 lkey) { int status; struct ocrdma_dealloc_lkey *cmd; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DEALLOC_LKEY, sizeof(*cmd)); if (!cmd) return -ENOMEM; cmd->lkey = lkey; cmd->rsvd_frmr = fr_mr ? 1 : 0; status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); kfree(cmd); return status; } static int ocrdma_mbx_reg_mr(struct ocrdma_dev *dev, struct ocrdma_hw_mr *hwmr, u32 pdid, u32 pbl_cnt, u32 pbe_size, u32 last) { int status = -ENOMEM; int i; struct ocrdma_reg_nsmr *cmd; struct ocrdma_reg_nsmr_rsp *rsp; u64 fbo = hwmr->va & (hwmr->pbe_size - 1); cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_REGISTER_NSMR, sizeof(*cmd)); if (!cmd) return -ENOMEM; cmd->num_pbl_pdid = pdid | (hwmr->num_pbls << OCRDMA_REG_NSMR_NUM_PBL_SHIFT); cmd->fr_mr = hwmr->fr_mr; cmd->flags_hpage_pbe_sz |= (hwmr->remote_wr << OCRDMA_REG_NSMR_REMOTE_WR_SHIFT); cmd->flags_hpage_pbe_sz |= (hwmr->remote_rd << OCRDMA_REG_NSMR_REMOTE_RD_SHIFT); cmd->flags_hpage_pbe_sz |= (hwmr->local_wr << OCRDMA_REG_NSMR_LOCAL_WR_SHIFT); cmd->flags_hpage_pbe_sz |= (hwmr->remote_atomic << OCRDMA_REG_NSMR_REMOTE_ATOMIC_SHIFT); cmd->flags_hpage_pbe_sz |= (hwmr->mw_bind << OCRDMA_REG_NSMR_BIND_MEMWIN_SHIFT); cmd->flags_hpage_pbe_sz |= (last << OCRDMA_REG_NSMR_LAST_SHIFT); cmd->flags_hpage_pbe_sz |= (hwmr->pbe_size / OCRDMA_MIN_HPAGE_SIZE); cmd->flags_hpage_pbe_sz |= (hwmr->pbl_size / OCRDMA_MIN_HPAGE_SIZE) << OCRDMA_REG_NSMR_HPAGE_SIZE_SHIFT; cmd->totlen_low = hwmr->len; cmd->totlen_high = upper_32_bits(hwmr->len); cmd->fbo_low = lower_32_bits(fbo); cmd->fbo_high = upper_32_bits(fbo); cmd->va_loaddr = (u32) hwmr->va; cmd->va_hiaddr = (u32) upper_32_bits(hwmr->va); for (i = 0; i < pbl_cnt; i++) { cmd->pbl[i].lo = (u32) (hwmr->pbl_table[i].pa & 0xffffffff); cmd->pbl[i].hi = upper_32_bits(hwmr->pbl_table[i].pa); } status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); if (status) goto mbx_err; rsp = (struct ocrdma_reg_nsmr_rsp *)cmd; hwmr->lkey = rsp->lrkey; mbx_err: kfree(cmd); return status; } static int ocrdma_mbx_reg_mr_cont(struct ocrdma_dev *dev, struct ocrdma_hw_mr *hwmr, u32 pbl_cnt, u32 pbl_offset, u32 last) { int status; int i; struct ocrdma_reg_nsmr_cont *cmd; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_REGISTER_NSMR_CONT, sizeof(*cmd)); if (!cmd) return -ENOMEM; cmd->lrkey = hwmr->lkey; cmd->num_pbl_offset = (pbl_cnt << OCRDMA_REG_NSMR_CONT_NUM_PBL_SHIFT) | (pbl_offset & OCRDMA_REG_NSMR_CONT_PBL_SHIFT_MASK); cmd->last = last << OCRDMA_REG_NSMR_CONT_LAST_SHIFT; for (i = 0; i < pbl_cnt; i++) { cmd->pbl[i].lo = (u32) (hwmr->pbl_table[i + pbl_offset].pa & 0xffffffff); cmd->pbl[i].hi = upper_32_bits(hwmr->pbl_table[i + pbl_offset].pa); } status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); kfree(cmd); return status; } int ocrdma_reg_mr(struct ocrdma_dev *dev, struct ocrdma_hw_mr *hwmr, u32 pdid, int acc) { int status; u32 last = 0; u32 cur_pbl_cnt, pbl_offset; u32 pending_pbl_cnt = hwmr->num_pbls; pbl_offset = 0; cur_pbl_cnt = min(pending_pbl_cnt, MAX_OCRDMA_NSMR_PBL); if (cur_pbl_cnt == pending_pbl_cnt) last = 1; status = ocrdma_mbx_reg_mr(dev, hwmr, pdid, cur_pbl_cnt, hwmr->pbe_size, last); if (status) { pr_err("%s() status=%d\n", __func__, status); return status; } /* if there is no more pbls to register then exit. */ if (last) return 0; while (!last) { pbl_offset += cur_pbl_cnt; pending_pbl_cnt -= cur_pbl_cnt; cur_pbl_cnt = min(pending_pbl_cnt, MAX_OCRDMA_NSMR_PBL); /* if we reach the end of the pbls, then need to set the last * bit, indicating no more pbls to register for this memory key. */ if (cur_pbl_cnt == pending_pbl_cnt) last = 1; status = ocrdma_mbx_reg_mr_cont(dev, hwmr, cur_pbl_cnt, pbl_offset, last); if (status) break; } if (status) pr_err("%s() err. status=%d\n", __func__, status); return status; } bool ocrdma_is_qp_in_sq_flushlist(struct ocrdma_cq *cq, struct ocrdma_qp *qp) { struct ocrdma_qp *tmp; bool found = false; list_for_each_entry(tmp, &cq->sq_head, sq_entry) { if (qp == tmp) { found = true; break; } } return found; } bool ocrdma_is_qp_in_rq_flushlist(struct ocrdma_cq *cq, struct ocrdma_qp *qp) { struct ocrdma_qp *tmp; bool found = false; list_for_each_entry(tmp, &cq->rq_head, rq_entry) { if (qp == tmp) { found = true; break; } } return found; } void ocrdma_flush_qp(struct ocrdma_qp *qp) { bool found; unsigned long flags; struct ocrdma_dev *dev = get_ocrdma_dev(qp->ibqp.device); spin_lock_irqsave(&dev->flush_q_lock, flags); found = ocrdma_is_qp_in_sq_flushlist(qp->sq_cq, qp); if (!found) list_add_tail(&qp->sq_entry, &qp->sq_cq->sq_head); if (!qp->srq) { found = ocrdma_is_qp_in_rq_flushlist(qp->rq_cq, qp); if (!found) list_add_tail(&qp->rq_entry, &qp->rq_cq->rq_head); } spin_unlock_irqrestore(&dev->flush_q_lock, flags); } static void ocrdma_init_hwq_ptr(struct ocrdma_qp *qp) { qp->sq.head = 0; qp->sq.tail = 0; qp->rq.head = 0; qp->rq.tail = 0; } int ocrdma_qp_state_change(struct ocrdma_qp *qp, enum ib_qp_state new_ib_state, enum ib_qp_state *old_ib_state) { unsigned long flags; enum ocrdma_qp_state new_state; new_state = get_ocrdma_qp_state(new_ib_state); /* sync with wqe and rqe posting */ spin_lock_irqsave(&qp->q_lock, flags); if (old_ib_state) *old_ib_state = get_ibqp_state(qp->state); if (new_state == qp->state) { spin_unlock_irqrestore(&qp->q_lock, flags); return 1; } if (new_state == OCRDMA_QPS_INIT) { ocrdma_init_hwq_ptr(qp); ocrdma_del_flush_qp(qp); } else if (new_state == OCRDMA_QPS_ERR) { ocrdma_flush_qp(qp); } qp->state = new_state; spin_unlock_irqrestore(&qp->q_lock, flags); return 0; } static u32 ocrdma_set_create_qp_mbx_access_flags(struct ocrdma_qp *qp) { u32 flags = 0; if (qp->cap_flags & OCRDMA_QP_INB_RD) flags |= OCRDMA_CREATE_QP_REQ_INB_RDEN_MASK; if (qp->cap_flags & OCRDMA_QP_INB_WR) flags |= OCRDMA_CREATE_QP_REQ_INB_WREN_MASK; if (qp->cap_flags & OCRDMA_QP_MW_BIND) flags |= OCRDMA_CREATE_QP_REQ_BIND_MEMWIN_MASK; if (qp->cap_flags & OCRDMA_QP_LKEY0) flags |= OCRDMA_CREATE_QP_REQ_ZERO_LKEYEN_MASK; if (qp->cap_flags & OCRDMA_QP_FAST_REG) flags |= OCRDMA_CREATE_QP_REQ_FMR_EN_MASK; return flags; } static int ocrdma_set_create_qp_sq_cmd(struct ocrdma_create_qp_req *cmd, struct ib_qp_init_attr *attrs, struct ocrdma_qp *qp) { int status; u32 len, hw_pages, hw_page_size; dma_addr_t pa; struct ocrdma_pd *pd = qp->pd; struct ocrdma_dev *dev = get_ocrdma_dev(pd->ibpd.device); struct pci_dev *pdev = dev->nic_info.pdev; u32 max_wqe_allocated; u32 max_sges = attrs->cap.max_send_sge; /* QP1 may exceed 127 */ max_wqe_allocated = min_t(u32, attrs->cap.max_send_wr + 1, dev->attr.max_wqe); status = ocrdma_build_q_conf(&max_wqe_allocated, dev->attr.wqe_size, &hw_pages, &hw_page_size); if (status) { pr_err("%s() req. max_send_wr=0x%x\n", __func__, max_wqe_allocated); return -EINVAL; } qp->sq.max_cnt = max_wqe_allocated; len = (hw_pages * hw_page_size); qp->sq.va = dma_alloc_coherent(&pdev->dev, len, &pa, GFP_KERNEL); if (!qp->sq.va) return -EINVAL; qp->sq.len = len; qp->sq.pa = pa; qp->sq.entry_size = dev->attr.wqe_size; ocrdma_build_q_pages(&cmd->wq_addr[0], hw_pages, pa, hw_page_size); cmd->type_pgsz_pdn |= (ilog2(hw_page_size / OCRDMA_MIN_Q_PAGE_SIZE) << OCRDMA_CREATE_QP_REQ_SQ_PAGE_SIZE_SHIFT); cmd->num_wq_rq_pages |= (hw_pages << OCRDMA_CREATE_QP_REQ_NUM_WQ_PAGES_SHIFT) & OCRDMA_CREATE_QP_REQ_NUM_WQ_PAGES_MASK; cmd->max_sge_send_write |= (max_sges << OCRDMA_CREATE_QP_REQ_MAX_SGE_SEND_SHIFT) & OCRDMA_CREATE_QP_REQ_MAX_SGE_SEND_MASK; cmd->max_sge_send_write |= (max_sges << OCRDMA_CREATE_QP_REQ_MAX_SGE_WRITE_SHIFT) & OCRDMA_CREATE_QP_REQ_MAX_SGE_WRITE_MASK; cmd->max_wqe_rqe |= (ilog2(qp->sq.max_cnt) << OCRDMA_CREATE_QP_REQ_MAX_WQE_SHIFT) & OCRDMA_CREATE_QP_REQ_MAX_WQE_MASK; cmd->wqe_rqe_size |= (dev->attr.wqe_size << OCRDMA_CREATE_QP_REQ_WQE_SIZE_SHIFT) & OCRDMA_CREATE_QP_REQ_WQE_SIZE_MASK; return 0; } static int ocrdma_set_create_qp_rq_cmd(struct ocrdma_create_qp_req *cmd, struct ib_qp_init_attr *attrs, struct ocrdma_qp *qp) { int status; u32 len, hw_pages, hw_page_size; dma_addr_t pa = 0; struct ocrdma_pd *pd = qp->pd; struct ocrdma_dev *dev = get_ocrdma_dev(pd->ibpd.device); struct pci_dev *pdev = dev->nic_info.pdev; u32 max_rqe_allocated = attrs->cap.max_recv_wr + 1; status = ocrdma_build_q_conf(&max_rqe_allocated, dev->attr.rqe_size, &hw_pages, &hw_page_size); if (status) { pr_err("%s() req. max_recv_wr=0x%x\n", __func__, attrs->cap.max_recv_wr + 1); return status; } qp->rq.max_cnt = max_rqe_allocated; len = (hw_pages * hw_page_size); qp->rq.va = dma_alloc_coherent(&pdev->dev, len, &pa, GFP_KERNEL); if (!qp->rq.va) return -ENOMEM; qp->rq.pa = pa; qp->rq.len = len; qp->rq.entry_size = dev->attr.rqe_size; ocrdma_build_q_pages(&cmd->rq_addr[0], hw_pages, pa, hw_page_size); cmd->type_pgsz_pdn |= (ilog2(hw_page_size / OCRDMA_MIN_Q_PAGE_SIZE) << OCRDMA_CREATE_QP_REQ_RQ_PAGE_SIZE_SHIFT); cmd->num_wq_rq_pages |= (hw_pages << OCRDMA_CREATE_QP_REQ_NUM_RQ_PAGES_SHIFT) & OCRDMA_CREATE_QP_REQ_NUM_RQ_PAGES_MASK; cmd->max_sge_recv_flags |= (attrs->cap.max_recv_sge << OCRDMA_CREATE_QP_REQ_MAX_SGE_RECV_SHIFT) & OCRDMA_CREATE_QP_REQ_MAX_SGE_RECV_MASK; cmd->max_wqe_rqe |= (ilog2(qp->rq.max_cnt) << OCRDMA_CREATE_QP_REQ_MAX_RQE_SHIFT) & OCRDMA_CREATE_QP_REQ_MAX_RQE_MASK; cmd->wqe_rqe_size |= (dev->attr.rqe_size << OCRDMA_CREATE_QP_REQ_RQE_SIZE_SHIFT) & OCRDMA_CREATE_QP_REQ_RQE_SIZE_MASK; return 0; } static void ocrdma_set_create_qp_dpp_cmd(struct ocrdma_create_qp_req *cmd, struct ocrdma_pd *pd, struct ocrdma_qp *qp, u8 enable_dpp_cq, u16 dpp_cq_id) { pd->num_dpp_qp--; qp->dpp_enabled = true; cmd->max_sge_recv_flags |= OCRDMA_CREATE_QP_REQ_ENABLE_DPP_MASK; if (!enable_dpp_cq) return; cmd->max_sge_recv_flags |= OCRDMA_CREATE_QP_REQ_ENABLE_DPP_MASK; cmd->dpp_credits_cqid = dpp_cq_id; cmd->dpp_credits_cqid |= OCRDMA_CREATE_QP_REQ_DPP_CREDIT_LIMIT << OCRDMA_CREATE_QP_REQ_DPP_CREDIT_SHIFT; } static int ocrdma_set_create_qp_ird_cmd(struct ocrdma_create_qp_req *cmd, struct ocrdma_qp *qp) { struct ocrdma_pd *pd = qp->pd; struct ocrdma_dev *dev = get_ocrdma_dev(pd->ibpd.device); struct pci_dev *pdev = dev->nic_info.pdev; dma_addr_t pa = 0; int ird_page_size = dev->attr.ird_page_size; int ird_q_len = dev->attr.num_ird_pages * ird_page_size; struct ocrdma_hdr_wqe *rqe; int i = 0; if (dev->attr.ird == 0) return 0; qp->ird_q_va = dma_alloc_coherent(&pdev->dev, ird_q_len, &pa, GFP_KERNEL); if (!qp->ird_q_va) return -ENOMEM; ocrdma_build_q_pages(&cmd->ird_addr[0], dev->attr.num_ird_pages, pa, ird_page_size); for (; i < ird_q_len / dev->attr.rqe_size; i++) { rqe = (struct ocrdma_hdr_wqe *)(qp->ird_q_va + (i * dev->attr.rqe_size)); rqe->cw = 0; rqe->cw |= 2; rqe->cw |= (OCRDMA_TYPE_LKEY << OCRDMA_WQE_TYPE_SHIFT); rqe->cw |= (8 << OCRDMA_WQE_SIZE_SHIFT); rqe->cw |= (8 << OCRDMA_WQE_NXT_WQE_SIZE_SHIFT); } return 0; } static void ocrdma_get_create_qp_rsp(struct ocrdma_create_qp_rsp *rsp, struct ocrdma_qp *qp, struct ib_qp_init_attr *attrs, u16 *dpp_offset, u16 *dpp_credit_lmt) { u32 max_wqe_allocated, max_rqe_allocated; qp->id = rsp->qp_id & OCRDMA_CREATE_QP_RSP_QP_ID_MASK; qp->rq.dbid = rsp->sq_rq_id & OCRDMA_CREATE_QP_RSP_RQ_ID_MASK; qp->sq.dbid = rsp->sq_rq_id >> OCRDMA_CREATE_QP_RSP_SQ_ID_SHIFT; qp->max_ird = rsp->max_ord_ird & OCRDMA_CREATE_QP_RSP_MAX_IRD_MASK; qp->max_ord = (rsp->max_ord_ird >> OCRDMA_CREATE_QP_RSP_MAX_ORD_SHIFT); qp->dpp_enabled = false; if (rsp->dpp_response & OCRDMA_CREATE_QP_RSP_DPP_ENABLED_MASK) { qp->dpp_enabled = true; *dpp_credit_lmt = (rsp->dpp_response & OCRDMA_CREATE_QP_RSP_DPP_CREDITS_MASK) >> OCRDMA_CREATE_QP_RSP_DPP_CREDITS_SHIFT; *dpp_offset = (rsp->dpp_response & OCRDMA_CREATE_QP_RSP_DPP_PAGE_OFFSET_MASK) >> OCRDMA_CREATE_QP_RSP_DPP_PAGE_OFFSET_SHIFT; } max_wqe_allocated = rsp->max_wqe_rqe >> OCRDMA_CREATE_QP_RSP_MAX_WQE_SHIFT; max_wqe_allocated = 1 << max_wqe_allocated; max_rqe_allocated = 1 << ((u16)rsp->max_wqe_rqe); qp->sq.max_cnt = max_wqe_allocated; qp->sq.max_wqe_idx = max_wqe_allocated - 1; if (!attrs->srq) { qp->rq.max_cnt = max_rqe_allocated; qp->rq.max_wqe_idx = max_rqe_allocated - 1; } } int ocrdma_mbx_create_qp(struct ocrdma_qp *qp, struct ib_qp_init_attr *attrs, u8 enable_dpp_cq, u16 dpp_cq_id, u16 *dpp_offset, u16 *dpp_credit_lmt) { int status = -ENOMEM; u32 flags = 0; struct ocrdma_pd *pd = qp->pd; struct ocrdma_dev *dev = get_ocrdma_dev(pd->ibpd.device); struct pci_dev *pdev = dev->nic_info.pdev; struct ocrdma_cq *cq; struct ocrdma_create_qp_req *cmd; struct ocrdma_create_qp_rsp *rsp; int qptype; switch (attrs->qp_type) { case IB_QPT_GSI: qptype = OCRDMA_QPT_GSI; break; case IB_QPT_RC: qptype = OCRDMA_QPT_RC; break; case IB_QPT_UD: qptype = OCRDMA_QPT_UD; break; default: return -EINVAL; } cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_QP, sizeof(*cmd)); if (!cmd) return status; cmd->type_pgsz_pdn |= (qptype << OCRDMA_CREATE_QP_REQ_QPT_SHIFT) & OCRDMA_CREATE_QP_REQ_QPT_MASK; status = ocrdma_set_create_qp_sq_cmd(cmd, attrs, qp); if (status) goto sq_err; if (attrs->srq) { struct ocrdma_srq *srq = get_ocrdma_srq(attrs->srq); cmd->max_sge_recv_flags |= OCRDMA_CREATE_QP_REQ_USE_SRQ_MASK; cmd->rq_addr[0].lo = srq->id; qp->srq = srq; } else { status = ocrdma_set_create_qp_rq_cmd(cmd, attrs, qp); if (status) goto rq_err; } status = ocrdma_set_create_qp_ird_cmd(cmd, qp); if (status) goto mbx_err; cmd->type_pgsz_pdn |= (pd->id << OCRDMA_CREATE_QP_REQ_PD_ID_SHIFT) & OCRDMA_CREATE_QP_REQ_PD_ID_MASK; flags = ocrdma_set_create_qp_mbx_access_flags(qp); cmd->max_sge_recv_flags |= flags; cmd->max_ord_ird |= (dev->attr.max_ord_per_qp << OCRDMA_CREATE_QP_REQ_MAX_ORD_SHIFT) & OCRDMA_CREATE_QP_REQ_MAX_ORD_MASK; cmd->max_ord_ird |= (dev->attr.max_ird_per_qp << OCRDMA_CREATE_QP_REQ_MAX_IRD_SHIFT) & OCRDMA_CREATE_QP_REQ_MAX_IRD_MASK; cq = get_ocrdma_cq(attrs->send_cq); cmd->wq_rq_cqid |= (cq->id << OCRDMA_CREATE_QP_REQ_WQ_CQID_SHIFT) & OCRDMA_CREATE_QP_REQ_WQ_CQID_MASK; qp->sq_cq = cq; cq = get_ocrdma_cq(attrs->recv_cq); cmd->wq_rq_cqid |= (cq->id << OCRDMA_CREATE_QP_REQ_RQ_CQID_SHIFT) & OCRDMA_CREATE_QP_REQ_RQ_CQID_MASK; qp->rq_cq = cq; if (pd->dpp_enabled && attrs->cap.max_inline_data && pd->num_dpp_qp && (attrs->cap.max_inline_data <= dev->attr.max_inline_data)) { ocrdma_set_create_qp_dpp_cmd(cmd, pd, qp, enable_dpp_cq, dpp_cq_id); } status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); if (status) goto mbx_err; rsp = (struct ocrdma_create_qp_rsp *)cmd; ocrdma_get_create_qp_rsp(rsp, qp, attrs, dpp_offset, dpp_credit_lmt); qp->state = OCRDMA_QPS_RST; kfree(cmd); return 0; mbx_err: if (qp->rq.va) dma_free_coherent(&pdev->dev, qp->rq.len, qp->rq.va, qp->rq.pa); rq_err: pr_err("%s(%d) rq_err\n", __func__, dev->id); dma_free_coherent(&pdev->dev, qp->sq.len, qp->sq.va, qp->sq.pa); sq_err: pr_err("%s(%d) sq_err\n", __func__, dev->id); kfree(cmd); return status; } int ocrdma_mbx_query_qp(struct ocrdma_dev *dev, struct ocrdma_qp *qp, struct ocrdma_qp_params *param) { int status = -ENOMEM; struct ocrdma_query_qp *cmd; struct ocrdma_query_qp_rsp *rsp; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_QUERY_QP, sizeof(*rsp)); if (!cmd) return status; cmd->qp_id = qp->id; status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); if (status) goto mbx_err; rsp = (struct ocrdma_query_qp_rsp *)cmd; memcpy(param, &rsp->params, sizeof(struct ocrdma_qp_params)); mbx_err: kfree(cmd); return status; } static int ocrdma_set_av_params(struct ocrdma_qp *qp, struct ocrdma_modify_qp *cmd, struct ib_qp_attr *attrs, int attr_mask) { int status; struct rdma_ah_attr *ah_attr = &attrs->ah_attr; const struct ib_gid_attr *sgid_attr; u16 vlan_id = 0xFFFF; u8 mac_addr[6], hdr_type; union { struct sockaddr_in _sockaddr_in; struct sockaddr_in6 _sockaddr_in6; } sgid_addr, dgid_addr; struct ocrdma_dev *dev = get_ocrdma_dev(qp->ibqp.device); const struct ib_global_route *grh; if ((rdma_ah_get_ah_flags(ah_attr) & IB_AH_GRH) == 0) return -EINVAL; grh = rdma_ah_read_grh(ah_attr); if (atomic_cmpxchg(&dev->update_sl, 1, 0)) ocrdma_init_service_level(dev); cmd->params.tclass_sq_psn |= (grh->traffic_class << OCRDMA_QP_PARAMS_TCLASS_SHIFT); cmd->params.rnt_rc_sl_fl |= (grh->flow_label & OCRDMA_QP_PARAMS_FLOW_LABEL_MASK); cmd->params.rnt_rc_sl_fl |= (rdma_ah_get_sl(ah_attr) << OCRDMA_QP_PARAMS_SL_SHIFT); cmd->params.hop_lmt_rq_psn |= (grh->hop_limit << OCRDMA_QP_PARAMS_HOP_LMT_SHIFT); cmd->flags |= OCRDMA_QP_PARA_FLOW_LBL_VALID; /* GIDs */ memcpy(&cmd->params.dgid[0], &grh->dgid.raw[0], sizeof(cmd->params.dgid)); sgid_attr = ah_attr->grh.sgid_attr; status = rdma_read_gid_l2_fields(sgid_attr, &vlan_id, &mac_addr[0]); if (status) return status; qp->sgid_idx = grh->sgid_index; memcpy(&cmd->params.sgid[0], &sgid_attr->gid.raw[0], sizeof(cmd->params.sgid)); status = ocrdma_resolve_dmac(dev, ah_attr, &mac_addr[0]); if (status) return status; cmd->params.dmac_b0_to_b3 = mac_addr[0] | (mac_addr[1] << 8) | (mac_addr[2] << 16) | (mac_addr[3] << 24); hdr_type = rdma_gid_attr_network_type(sgid_attr); if (hdr_type == RDMA_NETWORK_IPV4) { rdma_gid2ip((struct sockaddr *)&sgid_addr, &sgid_attr->gid); rdma_gid2ip((struct sockaddr *)&dgid_addr, &grh->dgid); memcpy(&cmd->params.dgid[0], &dgid_addr._sockaddr_in.sin_addr.s_addr, 4); memcpy(&cmd->params.sgid[0], &sgid_addr._sockaddr_in.sin_addr.s_addr, 4); } /* convert them to LE format. */ ocrdma_cpu_to_le32(&cmd->params.dgid[0], sizeof(cmd->params.dgid)); ocrdma_cpu_to_le32(&cmd->params.sgid[0], sizeof(cmd->params.sgid)); cmd->params.vlan_dmac_b4_to_b5 = mac_addr[4] | (mac_addr[5] << 8); if (vlan_id == 0xFFFF) vlan_id = 0; if (vlan_id || dev->pfc_state) { if (!vlan_id) { pr_err("ocrdma%d:Using VLAN with PFC is recommended\n", dev->id); pr_err("ocrdma%d:Using VLAN 0 for this connection\n", dev->id); } cmd->params.vlan_dmac_b4_to_b5 |= vlan_id << OCRDMA_QP_PARAMS_VLAN_SHIFT; cmd->flags |= OCRDMA_QP_PARA_VLAN_EN_VALID; cmd->params.rnt_rc_sl_fl |= (dev->sl & 0x07) << OCRDMA_QP_PARAMS_SL_SHIFT; } cmd->params.max_sge_recv_flags |= ((hdr_type << OCRDMA_QP_PARAMS_FLAGS_L3_TYPE_SHIFT) & OCRDMA_QP_PARAMS_FLAGS_L3_TYPE_MASK); return 0; } static int ocrdma_set_qp_params(struct ocrdma_qp *qp, struct ocrdma_modify_qp *cmd, struct ib_qp_attr *attrs, int attr_mask) { int status = 0; struct ocrdma_dev *dev = get_ocrdma_dev(qp->ibqp.device); if (attr_mask & IB_QP_PKEY_INDEX) { cmd->params.path_mtu_pkey_indx |= (attrs->pkey_index & OCRDMA_QP_PARAMS_PKEY_INDEX_MASK); cmd->flags |= OCRDMA_QP_PARA_PKEY_VALID; } if (attr_mask & IB_QP_QKEY) { qp->qkey = attrs->qkey; cmd->params.qkey = attrs->qkey; cmd->flags |= OCRDMA_QP_PARA_QKEY_VALID; } if (attr_mask & IB_QP_AV) { status = ocrdma_set_av_params(qp, cmd, attrs, attr_mask); if (status) return status; } else if (qp->qp_type == IB_QPT_GSI || qp->qp_type == IB_QPT_UD) { /* set the default mac address for UD, GSI QPs */ cmd->params.dmac_b0_to_b3 = dev->nic_info.mac_addr[0] | (dev->nic_info.mac_addr[1] << 8) | (dev->nic_info.mac_addr[2] << 16) | (dev->nic_info.mac_addr[3] << 24); cmd->params.vlan_dmac_b4_to_b5 = dev->nic_info.mac_addr[4] | (dev->nic_info.mac_addr[5] << 8); } if ((attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY) && attrs->en_sqd_async_notify) { cmd->params.max_sge_recv_flags |= OCRDMA_QP_PARAMS_FLAGS_SQD_ASYNC; cmd->flags |= OCRDMA_QP_PARA_DST_QPN_VALID; } if (attr_mask & IB_QP_DEST_QPN) { cmd->params.ack_to_rnr_rtc_dest_qpn |= (attrs->dest_qp_num & OCRDMA_QP_PARAMS_DEST_QPN_MASK); cmd->flags |= OCRDMA_QP_PARA_DST_QPN_VALID; } if (attr_mask & IB_QP_PATH_MTU) { if (attrs->path_mtu < IB_MTU_512 || attrs->path_mtu > IB_MTU_4096) { pr_err("ocrdma%d: IB MTU %d is not supported\n", dev->id, ib_mtu_enum_to_int(attrs->path_mtu)); status = -EINVAL; goto pmtu_err; } cmd->params.path_mtu_pkey_indx |= (ib_mtu_enum_to_int(attrs->path_mtu) << OCRDMA_QP_PARAMS_PATH_MTU_SHIFT) & OCRDMA_QP_PARAMS_PATH_MTU_MASK; cmd->flags |= OCRDMA_QP_PARA_PMTU_VALID; } if (attr_mask & IB_QP_TIMEOUT) { cmd->params.ack_to_rnr_rtc_dest_qpn |= attrs->timeout << OCRDMA_QP_PARAMS_ACK_TIMEOUT_SHIFT; cmd->flags |= OCRDMA_QP_PARA_ACK_TO_VALID; } if (attr_mask & IB_QP_RETRY_CNT) { cmd->params.rnt_rc_sl_fl |= (attrs->retry_cnt << OCRDMA_QP_PARAMS_RETRY_CNT_SHIFT) & OCRDMA_QP_PARAMS_RETRY_CNT_MASK; cmd->flags |= OCRDMA_QP_PARA_RETRY_CNT_VALID; } if (attr_mask & IB_QP_MIN_RNR_TIMER) { cmd->params.rnt_rc_sl_fl |= (attrs->min_rnr_timer << OCRDMA_QP_PARAMS_RNR_NAK_TIMER_SHIFT) & OCRDMA_QP_PARAMS_RNR_NAK_TIMER_MASK; cmd->flags |= OCRDMA_QP_PARA_RNT_VALID; } if (attr_mask & IB_QP_RNR_RETRY) { cmd->params.ack_to_rnr_rtc_dest_qpn |= (attrs->rnr_retry << OCRDMA_QP_PARAMS_RNR_RETRY_CNT_SHIFT) & OCRDMA_QP_PARAMS_RNR_RETRY_CNT_MASK; cmd->flags |= OCRDMA_QP_PARA_RRC_VALID; } if (attr_mask & IB_QP_SQ_PSN) { cmd->params.tclass_sq_psn |= (attrs->sq_psn & 0x00ffffff); cmd->flags |= OCRDMA_QP_PARA_SQPSN_VALID; } if (attr_mask & IB_QP_RQ_PSN) { cmd->params.hop_lmt_rq_psn |= (attrs->rq_psn & 0x00ffffff); cmd->flags |= OCRDMA_QP_PARA_RQPSN_VALID; } if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) { if (attrs->max_rd_atomic > dev->attr.max_ord_per_qp) { status = -EINVAL; goto pmtu_err; } qp->max_ord = attrs->max_rd_atomic; cmd->flags |= OCRDMA_QP_PARA_MAX_ORD_VALID; } if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) { if (attrs->max_dest_rd_atomic > dev->attr.max_ird_per_qp) { status = -EINVAL; goto pmtu_err; } qp->max_ird = attrs->max_dest_rd_atomic; cmd->flags |= OCRDMA_QP_PARA_MAX_IRD_VALID; } cmd->params.max_ord_ird = (qp->max_ord << OCRDMA_QP_PARAMS_MAX_ORD_SHIFT) | (qp->max_ird & OCRDMA_QP_PARAMS_MAX_IRD_MASK); pmtu_err: return status; } int ocrdma_mbx_modify_qp(struct ocrdma_dev *dev, struct ocrdma_qp *qp, struct ib_qp_attr *attrs, int attr_mask) { int status = -ENOMEM; struct ocrdma_modify_qp *cmd; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_MODIFY_QP, sizeof(*cmd)); if (!cmd) return status; cmd->params.id = qp->id; cmd->flags = 0; if (attr_mask & IB_QP_STATE) { cmd->params.max_sge_recv_flags |= (get_ocrdma_qp_state(attrs->qp_state) << OCRDMA_QP_PARAMS_STATE_SHIFT) & OCRDMA_QP_PARAMS_STATE_MASK; cmd->flags |= OCRDMA_QP_PARA_QPS_VALID; } else { cmd->params.max_sge_recv_flags |= (qp->state << OCRDMA_QP_PARAMS_STATE_SHIFT) & OCRDMA_QP_PARAMS_STATE_MASK; } status = ocrdma_set_qp_params(qp, cmd, attrs, attr_mask); if (status) goto mbx_err; status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); if (status) goto mbx_err; mbx_err: kfree(cmd); return status; } int ocrdma_mbx_destroy_qp(struct ocrdma_dev *dev, struct ocrdma_qp *qp) { int status = -ENOMEM; struct ocrdma_destroy_qp *cmd; struct pci_dev *pdev = dev->nic_info.pdev; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DELETE_QP, sizeof(*cmd)); if (!cmd) return status; cmd->qp_id = qp->id; status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); if (status) goto mbx_err; mbx_err: kfree(cmd); if (qp->sq.va) dma_free_coherent(&pdev->dev, qp->sq.len, qp->sq.va, qp->sq.pa); if (!qp->srq && qp->rq.va) dma_free_coherent(&pdev->dev, qp->rq.len, qp->rq.va, qp->rq.pa); if (qp->dpp_enabled) qp->pd->num_dpp_qp++; return status; } int ocrdma_mbx_create_srq(struct ocrdma_dev *dev, struct ocrdma_srq *srq, struct ib_srq_init_attr *srq_attr, struct ocrdma_pd *pd) { int status = -ENOMEM; int hw_pages, hw_page_size; int len; struct ocrdma_create_srq_rsp *rsp; struct ocrdma_create_srq *cmd; dma_addr_t pa; struct pci_dev *pdev = dev->nic_info.pdev; u32 max_rqe_allocated; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_SRQ, sizeof(*cmd)); if (!cmd) return status; cmd->pgsz_pdid = pd->id & OCRDMA_CREATE_SRQ_PD_ID_MASK; max_rqe_allocated = srq_attr->attr.max_wr + 1; status = ocrdma_build_q_conf(&max_rqe_allocated, dev->attr.rqe_size, &hw_pages, &hw_page_size); if (status) { pr_err("%s() req. max_wr=0x%x\n", __func__, srq_attr->attr.max_wr); status = -EINVAL; goto ret; } len = hw_pages * hw_page_size; srq->rq.va = dma_alloc_coherent(&pdev->dev, len, &pa, GFP_KERNEL); if (!srq->rq.va) { status = -ENOMEM; goto ret; } ocrdma_build_q_pages(&cmd->rq_addr[0], hw_pages, pa, hw_page_size); srq->rq.entry_size = dev->attr.rqe_size; srq->rq.pa = pa; srq->rq.len = len; srq->rq.max_cnt = max_rqe_allocated; cmd->max_sge_rqe = ilog2(max_rqe_allocated); cmd->max_sge_rqe |= srq_attr->attr.max_sge << OCRDMA_CREATE_SRQ_MAX_SGE_RECV_SHIFT; cmd->pgsz_pdid |= (ilog2(hw_page_size / OCRDMA_MIN_Q_PAGE_SIZE) << OCRDMA_CREATE_SRQ_PG_SZ_SHIFT); cmd->pages_rqe_sz |= (dev->attr.rqe_size << OCRDMA_CREATE_SRQ_RQE_SIZE_SHIFT) & OCRDMA_CREATE_SRQ_RQE_SIZE_MASK; cmd->pages_rqe_sz |= hw_pages << OCRDMA_CREATE_SRQ_NUM_RQ_PAGES_SHIFT; status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); if (status) goto mbx_err; rsp = (struct ocrdma_create_srq_rsp *)cmd; srq->id = rsp->id; srq->rq.dbid = rsp->id; max_rqe_allocated = ((rsp->max_sge_rqe_allocated & OCRDMA_CREATE_SRQ_RSP_MAX_RQE_ALLOCATED_MASK) >> OCRDMA_CREATE_SRQ_RSP_MAX_RQE_ALLOCATED_SHIFT); max_rqe_allocated = (1 << max_rqe_allocated); srq->rq.max_cnt = max_rqe_allocated; srq->rq.max_wqe_idx = max_rqe_allocated - 1; srq->rq.max_sges = (rsp->max_sge_rqe_allocated & OCRDMA_CREATE_SRQ_RSP_MAX_SGE_RECV_ALLOCATED_MASK) >> OCRDMA_CREATE_SRQ_RSP_MAX_SGE_RECV_ALLOCATED_SHIFT; goto ret; mbx_err: dma_free_coherent(&pdev->dev, srq->rq.len, srq->rq.va, pa); ret: kfree(cmd); return status; } int ocrdma_mbx_modify_srq(struct ocrdma_srq *srq, struct ib_srq_attr *srq_attr) { int status = -ENOMEM; struct ocrdma_modify_srq *cmd; struct ocrdma_pd *pd = srq->pd; struct ocrdma_dev *dev = get_ocrdma_dev(pd->ibpd.device); cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_MODIFY_SRQ, sizeof(*cmd)); if (!cmd) return status; cmd->id = srq->id; cmd->limit_max_rqe |= srq_attr->srq_limit << OCRDMA_MODIFY_SRQ_LIMIT_SHIFT; status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); kfree(cmd); return status; } int ocrdma_mbx_query_srq(struct ocrdma_srq *srq, struct ib_srq_attr *srq_attr) { int status = -ENOMEM; struct ocrdma_query_srq *cmd; struct ocrdma_dev *dev = get_ocrdma_dev(srq->ibsrq.device); cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_QUERY_SRQ, sizeof(*cmd)); if (!cmd) return status; cmd->id = srq->rq.dbid; status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); if (status == 0) { struct ocrdma_query_srq_rsp *rsp = (struct ocrdma_query_srq_rsp *)cmd; srq_attr->max_sge = rsp->srq_lmt_max_sge & OCRDMA_QUERY_SRQ_RSP_MAX_SGE_RECV_MASK; srq_attr->max_wr = rsp->max_rqe_pdid >> OCRDMA_QUERY_SRQ_RSP_MAX_RQE_SHIFT; srq_attr->srq_limit = rsp->srq_lmt_max_sge >> OCRDMA_QUERY_SRQ_RSP_SRQ_LIMIT_SHIFT; } kfree(cmd); return status; } void ocrdma_mbx_destroy_srq(struct ocrdma_dev *dev, struct ocrdma_srq *srq) { struct ocrdma_destroy_srq *cmd; struct pci_dev *pdev = dev->nic_info.pdev; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DELETE_SRQ, sizeof(*cmd)); if (!cmd) return; cmd->id = srq->id; ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); if (srq->rq.va) dma_free_coherent(&pdev->dev, srq->rq.len, srq->rq.va, srq->rq.pa); kfree(cmd); } static int ocrdma_mbx_get_dcbx_config(struct ocrdma_dev *dev, u32 ptype, struct ocrdma_dcbx_cfg *dcbxcfg) { int status; dma_addr_t pa; struct ocrdma_mqe cmd; struct ocrdma_get_dcbx_cfg_req *req = NULL; struct ocrdma_get_dcbx_cfg_rsp *rsp = NULL; struct pci_dev *pdev = dev->nic_info.pdev; struct ocrdma_mqe_sge *mqe_sge = cmd.u.nonemb_req.sge; memset(&cmd, 0, sizeof(struct ocrdma_mqe)); cmd.hdr.pyld_len = max_t (u32, sizeof(struct ocrdma_get_dcbx_cfg_rsp), sizeof(struct ocrdma_get_dcbx_cfg_req)); req = dma_alloc_coherent(&pdev->dev, cmd.hdr.pyld_len, &pa, GFP_KERNEL); if (!req) { status = -ENOMEM; goto mem_err; } cmd.hdr.spcl_sge_cnt_emb |= (1 << OCRDMA_MQE_HDR_SGE_CNT_SHIFT) & OCRDMA_MQE_HDR_SGE_CNT_MASK; mqe_sge->pa_lo = (u32) (pa & 0xFFFFFFFFUL); mqe_sge->pa_hi = (u32) upper_32_bits(pa); mqe_sge->len = cmd.hdr.pyld_len; ocrdma_init_mch(&req->hdr, OCRDMA_CMD_GET_DCBX_CONFIG, OCRDMA_SUBSYS_DCBX, cmd.hdr.pyld_len); req->param_type = ptype; status = ocrdma_mbx_cmd(dev, &cmd); if (status) goto mbx_err; rsp = (struct ocrdma_get_dcbx_cfg_rsp *)req; ocrdma_le32_to_cpu(rsp, sizeof(struct ocrdma_get_dcbx_cfg_rsp)); memcpy(dcbxcfg, &rsp->cfg, sizeof(struct ocrdma_dcbx_cfg)); mbx_err: dma_free_coherent(&pdev->dev, cmd.hdr.pyld_len, req, pa); mem_err: return status; } #define OCRDMA_MAX_SERVICE_LEVEL_INDEX 0x08 #define OCRDMA_DEFAULT_SERVICE_LEVEL 0x05 static int ocrdma_parse_dcbxcfg_rsp(struct ocrdma_dev *dev, int ptype, struct ocrdma_dcbx_cfg *dcbxcfg, u8 *srvc_lvl) { int status = -EINVAL, indx, slindx; int ventry_cnt; struct ocrdma_app_parameter *app_param; u8 valid, proto_sel; u8 app_prio, pfc_prio; u16 proto; if (!(dcbxcfg->tcv_aev_opv_st & OCRDMA_DCBX_STATE_MASK)) { pr_info("%s ocrdma%d DCBX is disabled\n", dev_name(&dev->nic_info.pdev->dev), dev->id); goto out; } if (!ocrdma_is_enabled_and_synced(dcbxcfg->pfc_state)) { pr_info("%s ocrdma%d priority flow control(%s) is %s%s\n", dev_name(&dev->nic_info.pdev->dev), dev->id, (ptype > 0 ? "operational" : "admin"), (dcbxcfg->pfc_state & OCRDMA_STATE_FLAG_ENABLED) ? "enabled" : "disabled", (dcbxcfg->pfc_state & OCRDMA_STATE_FLAG_SYNC) ? "" : ", not sync'ed"); goto out; } else { pr_info("%s ocrdma%d priority flow control is enabled and sync'ed\n", dev_name(&dev->nic_info.pdev->dev), dev->id); } ventry_cnt = (dcbxcfg->tcv_aev_opv_st >> OCRDMA_DCBX_APP_ENTRY_SHIFT) & OCRDMA_DCBX_STATE_MASK; for (indx = 0; indx < ventry_cnt; indx++) { app_param = &dcbxcfg->app_param[indx]; valid = (app_param->valid_proto_app >> OCRDMA_APP_PARAM_VALID_SHIFT) & OCRDMA_APP_PARAM_VALID_MASK; proto_sel = (app_param->valid_proto_app >> OCRDMA_APP_PARAM_PROTO_SEL_SHIFT) & OCRDMA_APP_PARAM_PROTO_SEL_MASK; proto = app_param->valid_proto_app & OCRDMA_APP_PARAM_APP_PROTO_MASK; if ( valid && proto == ETH_P_IBOE && proto_sel == OCRDMA_PROTO_SELECT_L2) { for (slindx = 0; slindx < OCRDMA_MAX_SERVICE_LEVEL_INDEX; slindx++) { app_prio = ocrdma_get_app_prio( (u8 *)app_param->app_prio, slindx); pfc_prio = ocrdma_get_pfc_prio( (u8 *)dcbxcfg->pfc_prio, slindx); if (app_prio && pfc_prio) { *srvc_lvl = slindx; status = 0; goto out; } } if (slindx == OCRDMA_MAX_SERVICE_LEVEL_INDEX) { pr_info("%s ocrdma%d application priority not set for 0x%x protocol\n", dev_name(&dev->nic_info.pdev->dev), dev->id, proto); } } } out: return status; } void ocrdma_init_service_level(struct ocrdma_dev *dev) { int status = 0, indx; struct ocrdma_dcbx_cfg dcbxcfg; u8 srvc_lvl = OCRDMA_DEFAULT_SERVICE_LEVEL; int ptype = OCRDMA_PARAMETER_TYPE_OPER; for (indx = 0; indx < 2; indx++) { status = ocrdma_mbx_get_dcbx_config(dev, ptype, &dcbxcfg); if (status) { pr_err("%s(): status=%d\n", __func__, status); ptype = OCRDMA_PARAMETER_TYPE_ADMIN; continue; } status = ocrdma_parse_dcbxcfg_rsp(dev, ptype, &dcbxcfg, &srvc_lvl); if (status) { ptype = OCRDMA_PARAMETER_TYPE_ADMIN; continue; } break; } if (status) pr_info("%s ocrdma%d service level default\n", dev_name(&dev->nic_info.pdev->dev), dev->id); else pr_info("%s ocrdma%d service level %d\n", dev_name(&dev->nic_info.pdev->dev), dev->id, srvc_lvl); dev->pfc_state = ocrdma_is_enabled_and_synced(dcbxcfg.pfc_state); dev->sl = srvc_lvl; } int ocrdma_alloc_av(struct ocrdma_dev *dev, struct ocrdma_ah *ah) { int i; int status = -EINVAL; struct ocrdma_av *av; unsigned long flags; av = dev->av_tbl.va; spin_lock_irqsave(&dev->av_tbl.lock, flags); for (i = 0; i < dev->av_tbl.num_ah; i++) { if (av->valid == 0) { av->valid = OCRDMA_AV_VALID; ah->av = av; ah->id = i; status = 0; break; } av++; } if (i == dev->av_tbl.num_ah) status = -EAGAIN; spin_unlock_irqrestore(&dev->av_tbl.lock, flags); return status; } void ocrdma_free_av(struct ocrdma_dev *dev, struct ocrdma_ah *ah) { unsigned long flags; spin_lock_irqsave(&dev->av_tbl.lock, flags); ah->av->valid = 0; spin_unlock_irqrestore(&dev->av_tbl.lock, flags); } static int ocrdma_create_eqs(struct ocrdma_dev *dev) { int num_eq, i, status = 0; int irq; unsigned long flags = 0; num_eq = dev->nic_info.msix.num_vectors - dev->nic_info.msix.start_vector; if (dev->nic_info.intr_mode == BE_INTERRUPT_MODE_INTX) { num_eq = 1; flags = IRQF_SHARED; } else { num_eq = min_t(u32, num_eq, num_online_cpus()); } if (!num_eq) return -EINVAL; dev->eq_tbl = kcalloc(num_eq, sizeof(struct ocrdma_eq), GFP_KERNEL); if (!dev->eq_tbl) return -ENOMEM; for (i = 0; i < num_eq; i++) { status = ocrdma_create_eq(dev, &dev->eq_tbl[i], OCRDMA_EQ_LEN); if (status) { status = -EINVAL; break; } sprintf(dev->eq_tbl[i].irq_name, "ocrdma%d-%d", dev->id, i); irq = ocrdma_get_irq(dev, &dev->eq_tbl[i]); status = request_irq(irq, ocrdma_irq_handler, flags, dev->eq_tbl[i].irq_name, &dev->eq_tbl[i]); if (status) goto done; dev->eq_cnt += 1; } /* one eq is sufficient for data path to work */ return 0; done: ocrdma_destroy_eqs(dev); return status; } static int ocrdma_mbx_modify_eqd(struct ocrdma_dev *dev, struct ocrdma_eq *eq, int num) { int i, status; struct ocrdma_modify_eqd_req *cmd; cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_MODIFY_EQ_DELAY, sizeof(*cmd)); if (!cmd) return -ENOMEM; ocrdma_init_mch(&cmd->cmd.req, OCRDMA_CMD_MODIFY_EQ_DELAY, OCRDMA_SUBSYS_COMMON, sizeof(*cmd)); cmd->cmd.num_eq = num; for (i = 0; i < num; i++) { cmd->cmd.set_eqd[i].eq_id = eq[i].q.id; cmd->cmd.set_eqd[i].phase = 0; cmd->cmd.set_eqd[i].delay_multiplier = (eq[i].aic_obj.prev_eqd * 65)/100; } status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd); kfree(cmd); return status; } static int ocrdma_modify_eqd(struct ocrdma_dev *dev, struct ocrdma_eq *eq, int num) { int num_eqs, i = 0; if (num > 8) { while (num) { num_eqs = min(num, 8); ocrdma_mbx_modify_eqd(dev, &eq[i], num_eqs); i += num_eqs; num -= num_eqs; } } else { ocrdma_mbx_modify_eqd(dev, eq, num); } return 0; } void ocrdma_eqd_set_task(struct work_struct *work) { struct ocrdma_dev *dev = container_of(work, struct ocrdma_dev, eqd_work.work); struct ocrdma_eq *eq = NULL; int i, num = 0; u64 eq_intr; for (i = 0; i < dev->eq_cnt; i++) { eq = &dev->eq_tbl[i]; if (eq->aic_obj.eq_intr_cnt > eq->aic_obj.prev_eq_intr_cnt) { eq_intr = eq->aic_obj.eq_intr_cnt - eq->aic_obj.prev_eq_intr_cnt; if ((eq_intr > EQ_INTR_PER_SEC_THRSH_HI) && (eq->aic_obj.prev_eqd == EQ_AIC_MIN_EQD)) { eq->aic_obj.prev_eqd = EQ_AIC_MAX_EQD; num++; } else if ((eq_intr < EQ_INTR_PER_SEC_THRSH_LOW) && (eq->aic_obj.prev_eqd == EQ_AIC_MAX_EQD)) { eq->aic_obj.prev_eqd = EQ_AIC_MIN_EQD; num++; } } eq->aic_obj.prev_eq_intr_cnt = eq->aic_obj.eq_intr_cnt; } if (num) ocrdma_modify_eqd(dev, &dev->eq_tbl[0], num); schedule_delayed_work(&dev->eqd_work, msecs_to_jiffies(1000)); } int ocrdma_init_hw(struct ocrdma_dev *dev) { int status; /* create the eqs */ status = ocrdma_create_eqs(dev); if (status) goto qpeq_err; status = ocrdma_create_mq(dev); if (status) goto mq_err; status = ocrdma_mbx_query_fw_config(dev); if (status) goto conf_err; status = ocrdma_mbx_query_dev(dev); if (status) goto conf_err; status = ocrdma_mbx_query_fw_ver(dev); if (status) goto conf_err; status = ocrdma_mbx_create_ah_tbl(dev); if (status) goto conf_err; status = ocrdma_mbx_get_phy_info(dev); if (status) goto info_attrb_err; status = ocrdma_mbx_get_ctrl_attribs(dev); if (status) goto info_attrb_err; return 0; info_attrb_err: ocrdma_mbx_delete_ah_tbl(dev); conf_err: ocrdma_destroy_mq(dev); mq_err: ocrdma_destroy_eqs(dev); qpeq_err: pr_err("%s() status=%d\n", __func__, status); return status; } void ocrdma_cleanup_hw(struct ocrdma_dev *dev) { ocrdma_free_pd_pool(dev); ocrdma_mbx_delete_ah_tbl(dev); /* cleanup the control path */ ocrdma_destroy_mq(dev); /* cleanup the eqs */ ocrdma_destroy_eqs(dev); }
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