mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-07 02:16:40 +07:00
634c5796a5
Fix max sge calculation for sq, rq, srq for all hardware types. Signed-off-by: Mahesh Vardhamanaiah <mahesh.vardhamanaiah@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2632 lines
73 KiB
C
2632 lines
73 KiB
C
/*******************************************************************
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* This file is part of the Emulex RoCE Device Driver for *
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* RoCE (RDMA over Converged Ethernet) CNA Adapters. *
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* Copyright (C) 2008-2012 Emulex. All rights reserved. *
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* EMULEX and SLI are trademarks of Emulex. *
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* www.emulex.com *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of version 2 of the GNU General *
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* Public License as published by the Free Software Foundation. *
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* This program is distributed in the hope that it will be useful. *
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* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
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* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
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* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
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* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
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* TO BE LEGALLY INVALID. See the GNU General Public License for *
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* more details, a copy of which can be found in the file COPYING *
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* included with this package. *
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*
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* Contact Information:
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* linux-drivers@emulex.com
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*
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* Emulex
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* 3333 Susan Street
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* Costa Mesa, CA 92626
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*******************************************************************/
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#include <linux/sched.h>
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#include <linux/interrupt.h>
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#include <linux/log2.h>
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#include <linux/dma-mapping.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/ib_user_verbs.h>
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#include <rdma/ib_addr.h>
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#include "ocrdma.h"
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#include "ocrdma_hw.h"
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#include "ocrdma_verbs.h"
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#include "ocrdma_ah.h"
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enum mbx_status {
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OCRDMA_MBX_STATUS_FAILED = 1,
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OCRDMA_MBX_STATUS_ILLEGAL_FIELD = 3,
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OCRDMA_MBX_STATUS_OOR = 100,
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OCRDMA_MBX_STATUS_INVALID_PD = 101,
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OCRDMA_MBX_STATUS_PD_INUSE = 102,
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OCRDMA_MBX_STATUS_INVALID_CQ = 103,
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OCRDMA_MBX_STATUS_INVALID_QP = 104,
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OCRDMA_MBX_STATUS_INVALID_LKEY = 105,
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OCRDMA_MBX_STATUS_ORD_EXCEEDS = 106,
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OCRDMA_MBX_STATUS_IRD_EXCEEDS = 107,
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OCRDMA_MBX_STATUS_SENDQ_WQE_EXCEEDS = 108,
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OCRDMA_MBX_STATUS_RECVQ_RQE_EXCEEDS = 109,
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OCRDMA_MBX_STATUS_SGE_SEND_EXCEEDS = 110,
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OCRDMA_MBX_STATUS_SGE_WRITE_EXCEEDS = 111,
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OCRDMA_MBX_STATUS_SGE_RECV_EXCEEDS = 112,
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OCRDMA_MBX_STATUS_INVALID_STATE_CHANGE = 113,
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OCRDMA_MBX_STATUS_MW_BOUND = 114,
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OCRDMA_MBX_STATUS_INVALID_VA = 115,
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OCRDMA_MBX_STATUS_INVALID_LENGTH = 116,
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OCRDMA_MBX_STATUS_INVALID_FBO = 117,
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OCRDMA_MBX_STATUS_INVALID_ACC_RIGHTS = 118,
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OCRDMA_MBX_STATUS_INVALID_PBE_SIZE = 119,
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OCRDMA_MBX_STATUS_INVALID_PBL_ENTRY = 120,
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OCRDMA_MBX_STATUS_INVALID_PBL_SHIFT = 121,
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OCRDMA_MBX_STATUS_INVALID_SRQ_ID = 129,
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OCRDMA_MBX_STATUS_SRQ_ERROR = 133,
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OCRDMA_MBX_STATUS_RQE_EXCEEDS = 134,
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OCRDMA_MBX_STATUS_MTU_EXCEEDS = 135,
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OCRDMA_MBX_STATUS_MAX_QP_EXCEEDS = 136,
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OCRDMA_MBX_STATUS_SRQ_LIMIT_EXCEEDS = 137,
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OCRDMA_MBX_STATUS_SRQ_SIZE_UNDERUNS = 138,
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OCRDMA_MBX_STATUS_QP_BOUND = 130,
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OCRDMA_MBX_STATUS_INVALID_CHANGE = 139,
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OCRDMA_MBX_STATUS_ATOMIC_OPS_UNSUP = 140,
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OCRDMA_MBX_STATUS_INVALID_RNR_NAK_TIMER = 141,
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OCRDMA_MBX_STATUS_MW_STILL_BOUND = 142,
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OCRDMA_MBX_STATUS_PKEY_INDEX_INVALID = 143,
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OCRDMA_MBX_STATUS_PKEY_INDEX_EXCEEDS = 144
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};
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enum additional_status {
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OCRDMA_MBX_ADDI_STATUS_INSUFFICIENT_RESOURCES = 22
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};
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enum cqe_status {
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OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_PRIVILEDGES = 1,
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OCRDMA_MBX_CQE_STATUS_INVALID_PARAMETER = 2,
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OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_RESOURCES = 3,
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OCRDMA_MBX_CQE_STATUS_QUEUE_FLUSHING = 4,
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OCRDMA_MBX_CQE_STATUS_DMA_FAILED = 5
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};
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static inline void *ocrdma_get_eqe(struct ocrdma_eq *eq)
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{
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return (u8 *)eq->q.va + (eq->q.tail * sizeof(struct ocrdma_eqe));
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}
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static inline void ocrdma_eq_inc_tail(struct ocrdma_eq *eq)
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{
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eq->q.tail = (eq->q.tail + 1) & (OCRDMA_EQ_LEN - 1);
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}
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static inline void *ocrdma_get_mcqe(struct ocrdma_dev *dev)
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{
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struct ocrdma_mcqe *cqe = (struct ocrdma_mcqe *)
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((u8 *) dev->mq.cq.va +
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(dev->mq.cq.tail * sizeof(struct ocrdma_mcqe)));
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if (!(le32_to_cpu(cqe->valid_ae_cmpl_cons) & OCRDMA_MCQE_VALID_MASK))
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return NULL;
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return cqe;
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}
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static inline void ocrdma_mcq_inc_tail(struct ocrdma_dev *dev)
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{
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dev->mq.cq.tail = (dev->mq.cq.tail + 1) & (OCRDMA_MQ_CQ_LEN - 1);
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}
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static inline struct ocrdma_mqe *ocrdma_get_mqe(struct ocrdma_dev *dev)
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{
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return (struct ocrdma_mqe *)((u8 *) dev->mq.sq.va +
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(dev->mq.sq.head *
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sizeof(struct ocrdma_mqe)));
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}
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static inline void ocrdma_mq_inc_head(struct ocrdma_dev *dev)
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{
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dev->mq.sq.head = (dev->mq.sq.head + 1) & (OCRDMA_MQ_LEN - 1);
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atomic_inc(&dev->mq.sq.used);
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}
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static inline void *ocrdma_get_mqe_rsp(struct ocrdma_dev *dev)
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{
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return (void *)((u8 *) dev->mq.sq.va +
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(dev->mqe_ctx.tag * sizeof(struct ocrdma_mqe)));
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}
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enum ib_qp_state get_ibqp_state(enum ocrdma_qp_state qps)
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{
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switch (qps) {
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case OCRDMA_QPS_RST:
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return IB_QPS_RESET;
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case OCRDMA_QPS_INIT:
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return IB_QPS_INIT;
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case OCRDMA_QPS_RTR:
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return IB_QPS_RTR;
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case OCRDMA_QPS_RTS:
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return IB_QPS_RTS;
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case OCRDMA_QPS_SQD:
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case OCRDMA_QPS_SQ_DRAINING:
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return IB_QPS_SQD;
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case OCRDMA_QPS_SQE:
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return IB_QPS_SQE;
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case OCRDMA_QPS_ERR:
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return IB_QPS_ERR;
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};
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return IB_QPS_ERR;
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}
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static enum ocrdma_qp_state get_ocrdma_qp_state(enum ib_qp_state qps)
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{
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switch (qps) {
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case IB_QPS_RESET:
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return OCRDMA_QPS_RST;
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case IB_QPS_INIT:
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return OCRDMA_QPS_INIT;
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case IB_QPS_RTR:
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return OCRDMA_QPS_RTR;
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case IB_QPS_RTS:
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return OCRDMA_QPS_RTS;
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case IB_QPS_SQD:
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return OCRDMA_QPS_SQD;
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case IB_QPS_SQE:
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return OCRDMA_QPS_SQE;
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case IB_QPS_ERR:
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return OCRDMA_QPS_ERR;
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};
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return OCRDMA_QPS_ERR;
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}
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static int ocrdma_get_mbx_errno(u32 status)
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{
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int err_num = -EFAULT;
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u8 mbox_status = (status & OCRDMA_MBX_RSP_STATUS_MASK) >>
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OCRDMA_MBX_RSP_STATUS_SHIFT;
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u8 add_status = (status & OCRDMA_MBX_RSP_ASTATUS_MASK) >>
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OCRDMA_MBX_RSP_ASTATUS_SHIFT;
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switch (mbox_status) {
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case OCRDMA_MBX_STATUS_OOR:
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case OCRDMA_MBX_STATUS_MAX_QP_EXCEEDS:
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err_num = -EAGAIN;
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break;
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case OCRDMA_MBX_STATUS_INVALID_PD:
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case OCRDMA_MBX_STATUS_INVALID_CQ:
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case OCRDMA_MBX_STATUS_INVALID_SRQ_ID:
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case OCRDMA_MBX_STATUS_INVALID_QP:
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case OCRDMA_MBX_STATUS_INVALID_CHANGE:
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case OCRDMA_MBX_STATUS_MTU_EXCEEDS:
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case OCRDMA_MBX_STATUS_INVALID_RNR_NAK_TIMER:
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case OCRDMA_MBX_STATUS_PKEY_INDEX_INVALID:
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case OCRDMA_MBX_STATUS_PKEY_INDEX_EXCEEDS:
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case OCRDMA_MBX_STATUS_ILLEGAL_FIELD:
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case OCRDMA_MBX_STATUS_INVALID_PBL_ENTRY:
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case OCRDMA_MBX_STATUS_INVALID_LKEY:
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case OCRDMA_MBX_STATUS_INVALID_VA:
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case OCRDMA_MBX_STATUS_INVALID_LENGTH:
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case OCRDMA_MBX_STATUS_INVALID_FBO:
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case OCRDMA_MBX_STATUS_INVALID_ACC_RIGHTS:
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case OCRDMA_MBX_STATUS_INVALID_PBE_SIZE:
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case OCRDMA_MBX_STATUS_ATOMIC_OPS_UNSUP:
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case OCRDMA_MBX_STATUS_SRQ_ERROR:
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case OCRDMA_MBX_STATUS_SRQ_SIZE_UNDERUNS:
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err_num = -EINVAL;
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break;
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case OCRDMA_MBX_STATUS_PD_INUSE:
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case OCRDMA_MBX_STATUS_QP_BOUND:
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case OCRDMA_MBX_STATUS_MW_STILL_BOUND:
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case OCRDMA_MBX_STATUS_MW_BOUND:
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err_num = -EBUSY;
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break;
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case OCRDMA_MBX_STATUS_RECVQ_RQE_EXCEEDS:
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case OCRDMA_MBX_STATUS_SGE_RECV_EXCEEDS:
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case OCRDMA_MBX_STATUS_RQE_EXCEEDS:
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case OCRDMA_MBX_STATUS_SRQ_LIMIT_EXCEEDS:
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case OCRDMA_MBX_STATUS_ORD_EXCEEDS:
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case OCRDMA_MBX_STATUS_IRD_EXCEEDS:
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case OCRDMA_MBX_STATUS_SENDQ_WQE_EXCEEDS:
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case OCRDMA_MBX_STATUS_SGE_SEND_EXCEEDS:
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case OCRDMA_MBX_STATUS_SGE_WRITE_EXCEEDS:
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err_num = -ENOBUFS;
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break;
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case OCRDMA_MBX_STATUS_FAILED:
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switch (add_status) {
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case OCRDMA_MBX_ADDI_STATUS_INSUFFICIENT_RESOURCES:
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err_num = -EAGAIN;
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break;
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}
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default:
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err_num = -EFAULT;
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}
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return err_num;
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}
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static int ocrdma_get_mbx_cqe_errno(u16 cqe_status)
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{
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int err_num = -EINVAL;
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switch (cqe_status) {
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case OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_PRIVILEDGES:
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err_num = -EPERM;
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break;
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case OCRDMA_MBX_CQE_STATUS_INVALID_PARAMETER:
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err_num = -EINVAL;
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break;
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case OCRDMA_MBX_CQE_STATUS_INSUFFICIENT_RESOURCES:
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case OCRDMA_MBX_CQE_STATUS_QUEUE_FLUSHING:
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err_num = -EAGAIN;
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break;
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case OCRDMA_MBX_CQE_STATUS_DMA_FAILED:
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err_num = -EIO;
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break;
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}
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return err_num;
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}
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void ocrdma_ring_cq_db(struct ocrdma_dev *dev, u16 cq_id, bool armed,
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bool solicited, u16 cqe_popped)
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{
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u32 val = cq_id & OCRDMA_DB_CQ_RING_ID_MASK;
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val |= ((cq_id & OCRDMA_DB_CQ_RING_ID_EXT_MASK) <<
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OCRDMA_DB_CQ_RING_ID_EXT_MASK_SHIFT);
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if (armed)
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val |= (1 << OCRDMA_DB_CQ_REARM_SHIFT);
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if (solicited)
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val |= (1 << OCRDMA_DB_CQ_SOLICIT_SHIFT);
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val |= (cqe_popped << OCRDMA_DB_CQ_NUM_POPPED_SHIFT);
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iowrite32(val, dev->nic_info.db + OCRDMA_DB_CQ_OFFSET);
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}
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static void ocrdma_ring_mq_db(struct ocrdma_dev *dev)
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{
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u32 val = 0;
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val |= dev->mq.sq.id & OCRDMA_MQ_ID_MASK;
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val |= 1 << OCRDMA_MQ_NUM_MQE_SHIFT;
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iowrite32(val, dev->nic_info.db + OCRDMA_DB_MQ_OFFSET);
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}
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static void ocrdma_ring_eq_db(struct ocrdma_dev *dev, u16 eq_id,
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bool arm, bool clear_int, u16 num_eqe)
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{
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u32 val = 0;
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val |= eq_id & OCRDMA_EQ_ID_MASK;
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val |= ((eq_id & OCRDMA_EQ_ID_EXT_MASK) << OCRDMA_EQ_ID_EXT_MASK_SHIFT);
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if (arm)
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val |= (1 << OCRDMA_REARM_SHIFT);
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if (clear_int)
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val |= (1 << OCRDMA_EQ_CLR_SHIFT);
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val |= (1 << OCRDMA_EQ_TYPE_SHIFT);
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val |= (num_eqe << OCRDMA_NUM_EQE_SHIFT);
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iowrite32(val, dev->nic_info.db + OCRDMA_DB_EQ_OFFSET);
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}
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static void ocrdma_init_mch(struct ocrdma_mbx_hdr *cmd_hdr,
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u8 opcode, u8 subsys, u32 cmd_len)
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{
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cmd_hdr->subsys_op = (opcode | (subsys << OCRDMA_MCH_SUBSYS_SHIFT));
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cmd_hdr->timeout = 20; /* seconds */
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cmd_hdr->cmd_len = cmd_len - sizeof(struct ocrdma_mbx_hdr);
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}
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static void *ocrdma_init_emb_mqe(u8 opcode, u32 cmd_len)
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{
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struct ocrdma_mqe *mqe;
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mqe = kzalloc(sizeof(struct ocrdma_mqe), GFP_KERNEL);
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if (!mqe)
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return NULL;
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mqe->hdr.spcl_sge_cnt_emb |=
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(OCRDMA_MQE_EMBEDDED << OCRDMA_MQE_HDR_EMB_SHIFT) &
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OCRDMA_MQE_HDR_EMB_MASK;
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mqe->hdr.pyld_len = cmd_len - sizeof(struct ocrdma_mqe_hdr);
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ocrdma_init_mch(&mqe->u.emb_req.mch, opcode, OCRDMA_SUBSYS_ROCE,
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mqe->hdr.pyld_len);
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return mqe;
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}
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static void ocrdma_free_q(struct ocrdma_dev *dev, struct ocrdma_queue_info *q)
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{
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dma_free_coherent(&dev->nic_info.pdev->dev, q->size, q->va, q->dma);
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}
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static int ocrdma_alloc_q(struct ocrdma_dev *dev,
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struct ocrdma_queue_info *q, u16 len, u16 entry_size)
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{
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memset(q, 0, sizeof(*q));
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q->len = len;
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q->entry_size = entry_size;
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q->size = len * entry_size;
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q->va = dma_alloc_coherent(&dev->nic_info.pdev->dev, q->size,
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&q->dma, GFP_KERNEL);
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if (!q->va)
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return -ENOMEM;
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memset(q->va, 0, q->size);
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return 0;
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}
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static void ocrdma_build_q_pages(struct ocrdma_pa *q_pa, int cnt,
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dma_addr_t host_pa, int hw_page_size)
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{
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int i;
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for (i = 0; i < cnt; i++) {
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q_pa[i].lo = (u32) (host_pa & 0xffffffff);
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q_pa[i].hi = (u32) upper_32_bits(host_pa);
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host_pa += hw_page_size;
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}
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}
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static void ocrdma_assign_eq_vect_gen2(struct ocrdma_dev *dev,
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struct ocrdma_eq *eq)
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{
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/* assign vector and update vector id for next EQ */
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eq->vector = dev->nic_info.msix.start_vector;
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dev->nic_info.msix.start_vector += 1;
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}
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static void ocrdma_free_eq_vect_gen2(struct ocrdma_dev *dev)
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{
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/* this assumes that EQs are freed in exactly reverse order
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* as its allocation.
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*/
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dev->nic_info.msix.start_vector -= 1;
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}
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static int ocrdma_mbx_delete_q(struct ocrdma_dev *dev, struct ocrdma_queue_info *q,
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int queue_type)
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{
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u8 opcode = 0;
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int status;
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struct ocrdma_delete_q_req *cmd = dev->mbx_cmd;
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switch (queue_type) {
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case QTYPE_MCCQ:
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opcode = OCRDMA_CMD_DELETE_MQ;
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break;
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case QTYPE_CQ:
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opcode = OCRDMA_CMD_DELETE_CQ;
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break;
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case QTYPE_EQ:
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opcode = OCRDMA_CMD_DELETE_EQ;
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break;
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default:
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BUG();
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}
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memset(cmd, 0, sizeof(*cmd));
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ocrdma_init_mch(&cmd->req, opcode, OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
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cmd->id = q->id;
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status = be_roce_mcc_cmd(dev->nic_info.netdev,
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cmd, sizeof(*cmd), NULL, NULL);
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if (!status)
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q->created = false;
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return status;
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}
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static int ocrdma_mbx_create_eq(struct ocrdma_dev *dev, struct ocrdma_eq *eq)
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{
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int status;
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struct ocrdma_create_eq_req *cmd = dev->mbx_cmd;
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struct ocrdma_create_eq_rsp *rsp = dev->mbx_cmd;
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memset(cmd, 0, sizeof(*cmd));
|
|
ocrdma_init_mch(&cmd->req, OCRDMA_CMD_CREATE_EQ, OCRDMA_SUBSYS_COMMON,
|
|
sizeof(*cmd));
|
|
if (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY)
|
|
cmd->req.rsvd_version = 0;
|
|
else
|
|
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;
|
|
if (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY)
|
|
ocrdma_assign_eq_vect_gen2(dev, eq);
|
|
else {
|
|
eq->vector = (rsp->vector_eqid >> 16) & 0xffff;
|
|
dev->nic_info.msix.start_vector += 1;
|
|
}
|
|
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;
|
|
}
|
|
|
|
static 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);
|
|
if (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY)
|
|
ocrdma_free_eq_vect_gen2(dev);
|
|
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_qp_eqs(struct ocrdma_dev *dev)
|
|
{
|
|
int i;
|
|
|
|
/* deallocate the data path eqs */
|
|
for (i = 0; i < dev->eq_cnt; i++)
|
|
ocrdma_destroy_eq(dev, &dev->qp_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->pgsz_pgcnt = PAGES_4K_SPANNED(cq->va, cq->size);
|
|
cmd->ev_cnt_flags = OCRDMA_CREATE_CQ_DEF_FLAGS;
|
|
cmd->eqn = (eq->id << OCRDMA_CREATE_CQ_EQID_SHIFT);
|
|
|
|
ocrdma_build_q_pages(&cmd->pa[0], cmd->pgsz_pgcnt,
|
|
cq->dma, PAGE_SIZE_4K);
|
|
status = be_roce_mcc_cmd(dev->nic_info.netdev,
|
|
cmd, sizeof(*cmd), NULL, NULL);
|
|
if (!status) {
|
|
cq->id = (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);
|
|
|
|
if (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) {
|
|
ocrdma_init_mch(&cmd->req, OCRDMA_CMD_CREATE_MQ,
|
|
OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
|
|
cmd->v0.pages = num_pages;
|
|
cmd->v0.async_cqid_valid = OCRDMA_CREATE_MQ_ASYNC_CQ_VALID;
|
|
cmd->v0.async_cqid_valid = (cq->id << 1);
|
|
cmd->v0.cqid_ringsize |= (ocrdma_encoded_q_len(mq->len) <<
|
|
OCRDMA_CREATE_MQ_RING_SIZE_SHIFT);
|
|
cmd->v0.cqid_ringsize |=
|
|
(cq->id << OCRDMA_CREATE_MQ_V0_CQ_ID_SHIFT);
|
|
cmd->v0.valid = OCRDMA_CREATE_MQ_VALID;
|
|
pa = &cmd->v0.pa[0];
|
|
} else {
|
|
ocrdma_init_mch(&cmd->req, OCRDMA_CMD_CREATE_MQ_EXT,
|
|
OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
|
|
cmd->req.rsvd_version = 1;
|
|
cmd->v1.cqid_pages = num_pages;
|
|
cmd->v1.cqid_pages |= (cq->id << OCRDMA_CREATE_MQ_CQ_ID_SHIFT);
|
|
cmd->v1.async_cqid_valid = OCRDMA_CREATE_MQ_ASYNC_CQ_VALID;
|
|
cmd->v1.async_event_bitmap = Bit(20);
|
|
cmd->v1.async_cqid_ringsize = cq->id;
|
|
cmd->v1.async_cqid_ringsize |= (ocrdma_encoded_q_len(mq->len) <<
|
|
OCRDMA_CREATE_MQ_RING_SIZE_SHIFT);
|
|
cmd->v1.valid = OCRDMA_CREATE_MQ_VALID;
|
|
pa = &cmd->v1.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;
|
|
|
|
status = ocrdma_mbx_mq_cq_create(dev, &dev->mq.cq, &dev->meq.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_machine(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;
|
|
|
|
if (cqe->qpvalid_qpid & OCRDMA_AE_MCQE_QPVALID)
|
|
qp = dev->qp_tbl[cqe->qpvalid_qpid & OCRDMA_AE_MCQE_QPID_MASK];
|
|
if (cqe->cqvalid_cqid & OCRDMA_AE_MCQE_CQVALID)
|
|
cq = dev->cq_tbl[cqe->cqvalid_cqid & OCRDMA_AE_MCQE_CQID_MASK];
|
|
|
|
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;
|
|
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;
|
|
ocrdma_err("%s() unknown type=0x%x\n", __func__, type);
|
|
break;
|
|
}
|
|
|
|
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)
|
|
ib_dispatch_event(&ib_evt);
|
|
|
|
}
|
|
|
|
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;
|
|
|
|
if (evt_code == OCRDMA_ASYNC_EVE_CODE)
|
|
ocrdma_dispatch_ibevent(dev, cqe);
|
|
else
|
|
ocrdma_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
|
|
ocrdma_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);
|
|
else
|
|
ocrdma_err("%s() cqe->compl is not set.\n", __func__);
|
|
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 void ocrdma_qp_buddy_cq_handler(struct ocrdma_dev *dev,
|
|
struct ocrdma_cq *cq)
|
|
{
|
|
unsigned long flags;
|
|
struct ocrdma_qp *qp;
|
|
bool buddy_cq_found = false;
|
|
/* 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);
|
|
list_for_each_entry(qp, &cq->sq_head, sq_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)
|
|
cq = qp->rq_cq;
|
|
else
|
|
cq = qp->sq_cq;
|
|
buddy_cq_found = true;
|
|
break;
|
|
}
|
|
spin_unlock_irqrestore(&dev->flush_q_lock, flags);
|
|
if (buddy_cq_found == false)
|
|
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);
|
|
}
|
|
}
|
|
|
|
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) {
|
|
ocrdma_err("%s%d invalid id=0x%x\n", __func__, dev->id, cq_idx);
|
|
return;
|
|
}
|
|
spin_lock_irqsave(&cq->cq_lock, flags);
|
|
cq->armed = false;
|
|
cq->solicited = false;
|
|
spin_unlock_irqrestore(&cq->cq_lock, flags);
|
|
|
|
ocrdma_ring_cq_db(dev, cq->id, false, false, 0);
|
|
|
|
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 eqe_popped = 0;
|
|
u16 cq_id;
|
|
while (1) {
|
|
ptr = ocrdma_get_eqe(eq);
|
|
eqe = *ptr;
|
|
ocrdma_le32_to_cpu(&eqe, sizeof(eqe));
|
|
if ((eqe.id_valid & OCRDMA_EQE_VALID_MASK) == 0)
|
|
break;
|
|
eqe_popped += 1;
|
|
ptr->id_valid = 0;
|
|
/* 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);
|
|
}
|
|
ocrdma_ring_eq_db(dev, eq->q.id, true, true, eqe_popped);
|
|
/* Ring EQ doorbell with num_popped to 0 to enable interrupts again. */
|
|
if (dev->nic_info.intr_mode == BE_INTERRUPT_MODE_INTX)
|
|
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
|
|
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;
|
|
|
|
mutex_lock(&dev->mqe_ctx.lock);
|
|
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 = ocrdma_get_mqe_rsp(dev);
|
|
ocrdma_copy_le32_to_cpu(mqe, rsp, (sizeof(*mqe)));
|
|
if (cqe_status || ext_status) {
|
|
ocrdma_err
|
|
("%s() opcode=0x%x, cqe_status=0x%x, ext_status=0x%x\n",
|
|
__func__,
|
|
(rsp->u.rsp.subsys_op & OCRDMA_MBX_RSP_OPCODE_MASK) >>
|
|
OCRDMA_MBX_RSP_OPCODE_SHIFT, cqe_status, ext_status);
|
|
status = ocrdma_get_mbx_cqe_errno(cqe_status);
|
|
goto mbx_err;
|
|
}
|
|
if (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 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->max_qp =
|
|
(rsp->qp_srq_cq_ird_ord & OCRDMA_MBX_QUERY_CFG_MAX_QP_MASK) >>
|
|
OCRDMA_MBX_QUERY_CFG_MAX_QP_SHIFT;
|
|
attr->max_send_sge = ((rsp->max_write_send_sge &
|
|
OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_MASK) >>
|
|
OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_SHIFT);
|
|
attr->max_recv_sge = (rsp->max_write_send_sge &
|
|
OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_MASK) >>
|
|
OCRDMA_MBX_QUERY_CFG_MAX_SEND_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_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_mr = rsp->max_mr;
|
|
attr->max_mr_size = ~0ull;
|
|
attr->max_fmr = 0;
|
|
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->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 (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) {
|
|
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;
|
|
dev->attr.max_cq = OCRDMA_MAX_CQ - 1;
|
|
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;
|
|
}
|
|
|
|
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_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_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 = 0;
|
|
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;
|
|
memset(dev->av_tbl.va, 0, dev->av_tbl.size);
|
|
|
|
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) (pa & 0xffffffff);
|
|
pbes[i].pa_hi = (u32) 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);
|
|
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->qp_eq_tbl[0].cq_cnt;
|
|
eq_id = dev->qp_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->qp_eq_tbl[i].cq_cnt < cq_cnt) {
|
|
cq_cnt = dev->qp_eq_tbl[i].cq_cnt;
|
|
eq_id = dev->qp_eq_tbl[i].q.id;
|
|
selected_eq = i;
|
|
}
|
|
}
|
|
dev->qp_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);
|
|
for (i = 0; i < dev->eq_cnt; i++) {
|
|
if (dev->qp_eq_tbl[i].q.id != eq_id)
|
|
continue;
|
|
dev->qp_eq_tbl[i].cq_cnt -= 1;
|
|
break;
|
|
}
|
|
mutex_unlock(&dev->dev_lock);
|
|
}
|
|
|
|
int ocrdma_mbx_create_cq(struct ocrdma_dev *dev, struct ocrdma_cq *cq,
|
|
int entries, int dpp_cq)
|
|
{
|
|
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 (dpp_cq)
|
|
return -EINVAL;
|
|
if (entries > dev->attr.max_cqe) {
|
|
ocrdma_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 && (dev->nic_info.dev_family != OCRDMA_GEN2_FAMILY))
|
|
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;
|
|
}
|
|
memset(cq->va, 0, cq->len);
|
|
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;
|
|
|
|
if (dev->eq_cnt < 0)
|
|
goto eq_err;
|
|
cq->eqn = ocrdma_bind_eq(dev);
|
|
cmd->cmd.req.rsvd_version = OCRDMA_CREATE_CQ_VER2;
|
|
cqe_count = cq->len / cqe_size;
|
|
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 (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) {
|
|
if (dpp_cq)
|
|
cmd->cmd.pgsz_pgcnt |= OCRDMA_CREATE_CQ_DPP <<
|
|
OCRDMA_CREATE_CQ_TYPE_SHIFT;
|
|
cq->phase_change = false;
|
|
cmd->cmd.cqe_count = (cq->len / cqe_size);
|
|
} else {
|
|
cmd->cmd.cqe_count = (cq->len / cqe_size) - 1;
|
|
cmd->cmd.ev_cnt_flags |= OCRDMA_CREATE_CQ_FLAGS_AUTO_VALID;
|
|
cq->phase_change = true;
|
|
}
|
|
|
|
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);
|
|
eq_err:
|
|
dma_free_coherent(&pdev->dev, cq->len, cq->va, cq->pa);
|
|
mem_err:
|
|
kfree(cmd);
|
|
return status;
|
|
}
|
|
|
|
int ocrdma_mbx_destroy_cq(struct ocrdma_dev *dev, struct ocrdma_cq *cq)
|
|
{
|
|
int status = -ENOMEM;
|
|
struct ocrdma_destroy_cq *cmd;
|
|
|
|
cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_DELETE_CQ, sizeof(*cmd));
|
|
if (!cmd)
|
|
return status;
|
|
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_unbind_eq(dev, cq->eqn);
|
|
status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
|
|
if (status)
|
|
goto mbx_err;
|
|
dma_free_coherent(&dev->nic_info.pdev->dev, cq->len, cq->va, cq->pa);
|
|
mbx_err:
|
|
kfree(cmd);
|
|
return status;
|
|
}
|
|
|
|
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 = -ENOMEM;
|
|
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);
|
|
if (status)
|
|
goto mbx_err;
|
|
mbx_err:
|
|
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;
|
|
|
|
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->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 = (u32) (hwmr->fbo & 0xffffffff);
|
|
cmd->fbo_high = (u32) upper_32_bits(hwmr->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 = -ENOMEM;
|
|
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);
|
|
if (status)
|
|
goto mbx_err;
|
|
mbx_err:
|
|
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) {
|
|
ocrdma_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)
|
|
ocrdma_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;
|
|
|
|
spin_lock_irqsave(&qp->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(&qp->dev->flush_q_lock, flags);
|
|
}
|
|
|
|
int ocrdma_qp_state_machine(struct ocrdma_qp *qp, enum ib_qp_state new_ib_state,
|
|
enum ib_qp_state *old_ib_state)
|
|
{
|
|
unsigned long flags;
|
|
int status = 0;
|
|
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;
|
|
}
|
|
|
|
switch (qp->state) {
|
|
case OCRDMA_QPS_RST:
|
|
switch (new_state) {
|
|
case OCRDMA_QPS_RST:
|
|
case OCRDMA_QPS_INIT:
|
|
break;
|
|
default:
|
|
status = -EINVAL;
|
|
break;
|
|
};
|
|
break;
|
|
case OCRDMA_QPS_INIT:
|
|
/* qps: INIT->XXX */
|
|
switch (new_state) {
|
|
case OCRDMA_QPS_INIT:
|
|
case OCRDMA_QPS_RTR:
|
|
break;
|
|
case OCRDMA_QPS_ERR:
|
|
ocrdma_flush_qp(qp);
|
|
break;
|
|
default:
|
|
status = -EINVAL;
|
|
break;
|
|
};
|
|
break;
|
|
case OCRDMA_QPS_RTR:
|
|
/* qps: RTS->XXX */
|
|
switch (new_state) {
|
|
case OCRDMA_QPS_RTS:
|
|
break;
|
|
case OCRDMA_QPS_ERR:
|
|
ocrdma_flush_qp(qp);
|
|
break;
|
|
default:
|
|
status = -EINVAL;
|
|
break;
|
|
};
|
|
break;
|
|
case OCRDMA_QPS_RTS:
|
|
/* qps: RTS->XXX */
|
|
switch (new_state) {
|
|
case OCRDMA_QPS_SQD:
|
|
case OCRDMA_QPS_SQE:
|
|
break;
|
|
case OCRDMA_QPS_ERR:
|
|
ocrdma_flush_qp(qp);
|
|
break;
|
|
default:
|
|
status = -EINVAL;
|
|
break;
|
|
};
|
|
break;
|
|
case OCRDMA_QPS_SQD:
|
|
/* qps: SQD->XXX */
|
|
switch (new_state) {
|
|
case OCRDMA_QPS_RTS:
|
|
case OCRDMA_QPS_SQE:
|
|
case OCRDMA_QPS_ERR:
|
|
break;
|
|
default:
|
|
status = -EINVAL;
|
|
break;
|
|
};
|
|
break;
|
|
case OCRDMA_QPS_SQE:
|
|
switch (new_state) {
|
|
case OCRDMA_QPS_RTS:
|
|
case OCRDMA_QPS_ERR:
|
|
break;
|
|
default:
|
|
status = -EINVAL;
|
|
break;
|
|
};
|
|
break;
|
|
case OCRDMA_QPS_ERR:
|
|
/* qps: ERR->XXX */
|
|
switch (new_state) {
|
|
case OCRDMA_QPS_RST:
|
|
break;
|
|
default:
|
|
status = -EINVAL;
|
|
break;
|
|
};
|
|
break;
|
|
default:
|
|
status = -EINVAL;
|
|
break;
|
|
};
|
|
if (!status)
|
|
qp->state = new_state;
|
|
|
|
spin_unlock_irqrestore(&qp->q_lock, flags);
|
|
return status;
|
|
}
|
|
|
|
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_dev *dev = qp->dev;
|
|
struct pci_dev *pdev = dev->nic_info.pdev;
|
|
u32 max_wqe_allocated;
|
|
u32 max_sges = attrs->cap.max_send_sge;
|
|
|
|
max_wqe_allocated = attrs->cap.max_send_wr;
|
|
/* need to allocate one extra to for GEN1 family */
|
|
if (dev->nic_info.dev_family != OCRDMA_GEN2_FAMILY)
|
|
max_wqe_allocated += 1;
|
|
|
|
status = ocrdma_build_q_conf(&max_wqe_allocated,
|
|
dev->attr.wqe_size, &hw_pages, &hw_page_size);
|
|
if (status) {
|
|
ocrdma_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;
|
|
memset(qp->sq.va, 0, len);
|
|
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_dev *dev = qp->dev;
|
|
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) {
|
|
ocrdma_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 status;
|
|
memset(qp->rq.va, 0, len);
|
|
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_dev *dev = qp->dev;
|
|
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;
|
|
|
|
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;
|
|
memset(qp->ird_q_va, 0, ird_q_len);
|
|
ocrdma_build_q_pages(&cmd->ird_addr[0], dev->attr.num_ird_pages,
|
|
pa, ird_page_size);
|
|
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_dev *dev = qp->dev;
|
|
struct ocrdma_pd *pd = qp->pd;
|
|
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:
|
|
ocrdma_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:
|
|
ocrdma_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(*cmd));
|
|
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;
|
|
}
|
|
|
|
int ocrdma_resolve_dgid(struct ocrdma_dev *dev, union ib_gid *dgid,
|
|
u8 *mac_addr)
|
|
{
|
|
struct in6_addr in6;
|
|
|
|
memcpy(&in6, dgid, sizeof in6);
|
|
if (rdma_is_multicast_addr(&in6))
|
|
rdma_get_mcast_mac(&in6, mac_addr);
|
|
else if (rdma_link_local_addr(&in6))
|
|
rdma_get_ll_mac(&in6, mac_addr);
|
|
else {
|
|
ocrdma_err("%s() fail to resolve mac_addr.\n", __func__);
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void ocrdma_set_av_params(struct ocrdma_qp *qp,
|
|
struct ocrdma_modify_qp *cmd,
|
|
struct ib_qp_attr *attrs)
|
|
{
|
|
struct ib_ah_attr *ah_attr = &attrs->ah_attr;
|
|
union ib_gid sgid;
|
|
u32 vlan_id;
|
|
u8 mac_addr[6];
|
|
if ((ah_attr->ah_flags & IB_AH_GRH) == 0)
|
|
return;
|
|
cmd->params.tclass_sq_psn |=
|
|
(ah_attr->grh.traffic_class << OCRDMA_QP_PARAMS_TCLASS_SHIFT);
|
|
cmd->params.rnt_rc_sl_fl |=
|
|
(ah_attr->grh.flow_label & OCRDMA_QP_PARAMS_FLOW_LABEL_MASK);
|
|
cmd->params.hop_lmt_rq_psn |=
|
|
(ah_attr->grh.hop_limit << OCRDMA_QP_PARAMS_HOP_LMT_SHIFT);
|
|
cmd->flags |= OCRDMA_QP_PARA_FLOW_LBL_VALID;
|
|
memcpy(&cmd->params.dgid[0], &ah_attr->grh.dgid.raw[0],
|
|
sizeof(cmd->params.dgid));
|
|
ocrdma_query_gid(&qp->dev->ibdev, 1,
|
|
ah_attr->grh.sgid_index, &sgid);
|
|
qp->sgid_idx = ah_attr->grh.sgid_index;
|
|
memcpy(&cmd->params.sgid[0], &sgid.raw[0], sizeof(cmd->params.sgid));
|
|
ocrdma_resolve_dgid(qp->dev, &ah_attr->grh.dgid, &mac_addr[0]);
|
|
cmd->params.dmac_b0_to_b3 = mac_addr[0] | (mac_addr[1] << 8) |
|
|
(mac_addr[2] << 16) | (mac_addr[3] << 24);
|
|
/* 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);
|
|
vlan_id = rdma_get_vlan_id(&sgid);
|
|
if (vlan_id && (vlan_id < 0x1000)) {
|
|
cmd->params.vlan_dmac_b4_to_b5 |=
|
|
vlan_id << OCRDMA_QP_PARAMS_VLAN_SHIFT;
|
|
cmd->flags |= OCRDMA_QP_PARA_VLAN_EN_VALID;
|
|
}
|
|
}
|
|
|
|
static int ocrdma_set_qp_params(struct ocrdma_qp *qp,
|
|
struct ocrdma_modify_qp *cmd,
|
|
struct ib_qp_attr *attrs, int attr_mask,
|
|
enum ib_qp_state old_qps)
|
|
{
|
|
int status = 0;
|
|
struct net_device *netdev = qp->dev->nic_info.netdev;
|
|
int eth_mtu = iboe_get_mtu(netdev->mtu);
|
|
|
|
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)
|
|
ocrdma_set_av_params(qp, cmd, attrs);
|
|
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 = qp->dev->nic_info.mac_addr[0] |
|
|
(qp->dev->nic_info.mac_addr[1] << 8) |
|
|
(qp->dev->nic_info.mac_addr[2] << 16) |
|
|
(qp->dev->nic_info.mac_addr[3] << 24);
|
|
cmd->params.vlan_dmac_b4_to_b5 = qp->dev->nic_info.mac_addr[4] |
|
|
(qp->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 (ib_mtu_enum_to_int(eth_mtu) <
|
|
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 > qp->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 > qp->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,
|
|
enum ib_qp_state old_qps)
|
|
{
|
|
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, old_qps);
|
|
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_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 ocrdma_dev *dev = srq->dev;
|
|
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) {
|
|
ocrdma_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;
|
|
cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_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(srq->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;
|
|
cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_SRQ, sizeof(*cmd));
|
|
if (!cmd)
|
|
return status;
|
|
cmd->id = srq->rq.dbid;
|
|
status = ocrdma_mbx_cmd(srq->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;
|
|
}
|
|
|
|
int ocrdma_mbx_destroy_srq(struct ocrdma_dev *dev, struct ocrdma_srq *srq)
|
|
{
|
|
int status = -ENOMEM;
|
|
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 status;
|
|
cmd->id = srq->id;
|
|
status = ocrdma_mbx_cmd(srq->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);
|
|
return status;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
int 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);
|
|
return 0;
|
|
}
|
|
|
|
static int ocrdma_create_mq_eq(struct ocrdma_dev *dev)
|
|
{
|
|
int status;
|
|
int irq;
|
|
unsigned long flags = 0;
|
|
int num_eq = 0;
|
|
|
|
if (dev->nic_info.intr_mode == BE_INTERRUPT_MODE_INTX)
|
|
flags = IRQF_SHARED;
|
|
else {
|
|
num_eq = dev->nic_info.msix.num_vectors -
|
|
dev->nic_info.msix.start_vector;
|
|
/* minimum two vectors/eq are required for rdma to work.
|
|
* one for control path and one for data path.
|
|
*/
|
|
if (num_eq < 2)
|
|
return -EBUSY;
|
|
}
|
|
|
|
status = ocrdma_create_eq(dev, &dev->meq, OCRDMA_EQ_LEN);
|
|
if (status)
|
|
return status;
|
|
sprintf(dev->meq.irq_name, "ocrdma_mq%d", dev->id);
|
|
irq = ocrdma_get_irq(dev, &dev->meq);
|
|
status = request_irq(irq, ocrdma_irq_handler, flags, dev->meq.irq_name,
|
|
&dev->meq);
|
|
if (status)
|
|
_ocrdma_destroy_eq(dev, &dev->meq);
|
|
return status;
|
|
}
|
|
|
|
static int ocrdma_create_qp_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());
|
|
dev->qp_eq_tbl = kzalloc(sizeof(struct ocrdma_eq) * num_eq, GFP_KERNEL);
|
|
if (!dev->qp_eq_tbl)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < num_eq; i++) {
|
|
status = ocrdma_create_eq(dev, &dev->qp_eq_tbl[i],
|
|
OCRDMA_EQ_LEN);
|
|
if (status) {
|
|
status = -EINVAL;
|
|
break;
|
|
}
|
|
sprintf(dev->qp_eq_tbl[i].irq_name, "ocrdma_qp%d-%d",
|
|
dev->id, i);
|
|
irq = ocrdma_get_irq(dev, &dev->qp_eq_tbl[i]);
|
|
status = request_irq(irq, ocrdma_irq_handler, flags,
|
|
dev->qp_eq_tbl[i].irq_name,
|
|
&dev->qp_eq_tbl[i]);
|
|
if (status) {
|
|
_ocrdma_destroy_eq(dev, &dev->qp_eq_tbl[i]);
|
|
status = -EINVAL;
|
|
break;
|
|
}
|
|
dev->eq_cnt += 1;
|
|
}
|
|
/* one eq is sufficient for data path to work */
|
|
if (dev->eq_cnt >= 1)
|
|
return 0;
|
|
if (status)
|
|
ocrdma_destroy_qp_eqs(dev);
|
|
return status;
|
|
}
|
|
|
|
int ocrdma_init_hw(struct ocrdma_dev *dev)
|
|
{
|
|
int status;
|
|
/* set up control path eq */
|
|
status = ocrdma_create_mq_eq(dev);
|
|
if (status)
|
|
return status;
|
|
/* set up data path eq */
|
|
status = ocrdma_create_qp_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;
|
|
return 0;
|
|
|
|
conf_err:
|
|
ocrdma_destroy_mq(dev);
|
|
mq_err:
|
|
ocrdma_destroy_qp_eqs(dev);
|
|
qpeq_err:
|
|
ocrdma_destroy_eq(dev, &dev->meq);
|
|
ocrdma_err("%s() status=%d\n", __func__, status);
|
|
return status;
|
|
}
|
|
|
|
void ocrdma_cleanup_hw(struct ocrdma_dev *dev)
|
|
{
|
|
ocrdma_mbx_delete_ah_tbl(dev);
|
|
|
|
/* cleanup the data path eqs */
|
|
ocrdma_destroy_qp_eqs(dev);
|
|
|
|
/* cleanup the control path */
|
|
ocrdma_destroy_mq(dev);
|
|
ocrdma_destroy_eq(dev, &dev->meq);
|
|
}
|