bnxt_qplib_rcfw_alloc_sbuf allocates 24 bytes and it is better to fit on stack variables. This way we can avoid unwanted kmalloc call. Call dma_alloc_coherent directly instead of wrapper bnxt_qplib_rcfw_alloc_sbuf. Also, FW expects the side buffer needs to be aligned to BNXT_QPLIB_CMDQE_UNITS(16B). So align the size to have the extra padding bytes. Signed-off-by: Kashyap Desai <kashyap.desai@xxxxxxxxxxxx> Signed-off-by: Hongguang Gao <hongguang.gao@xxxxxxxxxxxx> Signed-off-by: Selvin Xavier <selvin.xavier@xxxxxxxxxxxx> --- drivers/infiniband/hw/bnxt_re/qplib_fp.c | 38 ++++++++++-------- drivers/infiniband/hw/bnxt_re/qplib_rcfw.c | 34 +--------------- drivers/infiniband/hw/bnxt_re/qplib_sp.c | 63 +++++++++++++++--------------- 3 files changed, 55 insertions(+), 80 deletions(-) diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.c b/drivers/infiniband/hw/bnxt_re/qplib_fp.c index f9dee0d..282e34e 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_fp.c +++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.c @@ -709,7 +709,7 @@ int bnxt_qplib_query_srq(struct bnxt_qplib_res *res, struct bnxt_qplib_rcfw *rcfw = res->rcfw; struct creq_query_srq_resp resp = {}; struct bnxt_qplib_cmdqmsg msg = {}; - struct bnxt_qplib_rcfw_sbuf *sbuf; + struct bnxt_qplib_rcfw_sbuf sbuf; struct creq_query_srq_resp_sb *sb; struct cmdq_query_srq req = {}; int rc = 0; @@ -719,17 +719,20 @@ int bnxt_qplib_query_srq(struct bnxt_qplib_res *res, sizeof(req)); /* Configure the request */ - sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb)); - if (!sbuf) + sbuf.size = ALIGN(sizeof(*sb), BNXT_QPLIB_CMDQE_UNITS); + sbuf.sb = dma_alloc_coherent(&rcfw->pdev->dev, sbuf.size, + &sbuf.dma_addr, GFP_KERNEL); + if (!sbuf.sb) return -ENOMEM; - req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS; + req.resp_size = sbuf.size / BNXT_QPLIB_CMDQE_UNITS; req.srq_cid = cpu_to_le32(srq->id); - sb = sbuf->sb; - bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, sbuf, sizeof(req), + sb = sbuf.sb; + bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, &sbuf, sizeof(req), sizeof(resp), 0); rc = bnxt_qplib_rcfw_send_message(rcfw, &msg); srq->threshold = le16_to_cpu(sb->srq_limit); - bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf); + dma_free_coherent(&rcfw->pdev->dev, sbuf.size, + sbuf.sb, sbuf.dma_addr); return rc; } @@ -1347,24 +1350,26 @@ int bnxt_qplib_query_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp) struct bnxt_qplib_rcfw *rcfw = res->rcfw; struct creq_query_qp_resp resp = {}; struct bnxt_qplib_cmdqmsg msg = {}; - struct bnxt_qplib_rcfw_sbuf *sbuf; + struct bnxt_qplib_rcfw_sbuf sbuf; struct creq_query_qp_resp_sb *sb; struct cmdq_query_qp req = {}; u32 temp32[4]; int i, rc = 0; + sbuf.size = ALIGN(sizeof(*sb), BNXT_QPLIB_CMDQE_UNITS); + sbuf.sb = dma_alloc_coherent(&rcfw->pdev->dev, sbuf.size, + &sbuf.dma_addr, GFP_KERNEL); + if (!sbuf.sb) + return -ENOMEM; + sb = sbuf.sb; + bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req, CMDQ_BASE_OPCODE_QUERY_QP, sizeof(req)); - sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb)); - if (!sbuf) - return -ENOMEM; - sb = sbuf->sb; - req.qp_cid = cpu_to_le32(qp->id); - req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS; - bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, sbuf, sizeof(req), + req.resp_size = sbuf.size / BNXT_QPLIB_CMDQE_UNITS; + bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, &sbuf, sizeof(req), sizeof(resp), 0); rc = bnxt_qplib_rcfw_send_message(rcfw, &msg); if (rc) @@ -1423,7 +1428,8 @@ int bnxt_qplib_query_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp) memcpy(qp->smac, sb->src_mac, 6); qp->vlan_id = le16_to_cpu(sb->vlan_pcp_vlan_dei_vlan_id); bail: - bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf); + dma_free_coherent(&rcfw->pdev->dev, sbuf.size, + sbuf.sb, sbuf.dma_addr); return rc; } diff --git a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c index b30e66b..9d26871 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c +++ b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c @@ -335,7 +335,8 @@ static int __send_message(struct bnxt_qplib_rcfw *rcfw, cpu_to_le64(sbuf->dma_addr)); __set_cmdq_base_resp_size(msg->req, msg->req_sz, ALIGN(sbuf->size, - BNXT_QPLIB_CMDQE_UNITS)); + BNXT_QPLIB_CMDQE_UNITS) / + BNXT_QPLIB_CMDQE_UNITS); } preq = (u8 *)msg->req; @@ -1196,34 +1197,3 @@ int bnxt_qplib_enable_rcfw_channel(struct bnxt_qplib_rcfw *rcfw, return 0; } - -struct bnxt_qplib_rcfw_sbuf *bnxt_qplib_rcfw_alloc_sbuf( - struct bnxt_qplib_rcfw *rcfw, - u32 size) -{ - struct bnxt_qplib_rcfw_sbuf *sbuf; - - sbuf = kzalloc(sizeof(*sbuf), GFP_KERNEL); - if (!sbuf) - return NULL; - - sbuf->size = size; - sbuf->sb = dma_alloc_coherent(&rcfw->pdev->dev, sbuf->size, - &sbuf->dma_addr, GFP_KERNEL); - if (!sbuf->sb) - goto bail; - - return sbuf; -bail: - kfree(sbuf); - return NULL; -} - -void bnxt_qplib_rcfw_free_sbuf(struct bnxt_qplib_rcfw *rcfw, - struct bnxt_qplib_rcfw_sbuf *sbuf) -{ - if (sbuf->sb) - dma_free_coherent(&rcfw->pdev->dev, sbuf->size, - sbuf->sb, sbuf->dma_addr); - kfree(sbuf); -} diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.c b/drivers/infiniband/hw/bnxt_re/qplib_sp.c index b77928a..05ee8fd 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_sp.c +++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.c @@ -94,7 +94,7 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw, struct creq_query_func_resp resp = {}; struct bnxt_qplib_cmdqmsg msg = {}; struct creq_query_func_resp_sb *sb; - struct bnxt_qplib_rcfw_sbuf *sbuf; + struct bnxt_qplib_rcfw_sbuf sbuf; struct cmdq_query_func req = {}; u8 *tqm_alloc; int i, rc = 0; @@ -104,16 +104,14 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw, CMDQ_BASE_OPCODE_QUERY_FUNC, sizeof(req)); - sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb)); - if (!sbuf) { - dev_err(&rcfw->pdev->dev, - "SP: QUERY_FUNC alloc side buffer failed\n"); + sbuf.size = ALIGN(sizeof(*sb), BNXT_QPLIB_CMDQE_UNITS); + sbuf.sb = dma_alloc_coherent(&rcfw->pdev->dev, sbuf.size, + &sbuf.dma_addr, GFP_KERNEL); + if (!sbuf.sb) return -ENOMEM; - } - - sb = sbuf->sb; - req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS; - bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, sbuf, sizeof(req), + sb = sbuf.sb; + req.resp_size = sbuf.size / BNXT_QPLIB_CMDQE_UNITS; + bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, &sbuf, sizeof(req), sizeof(resp), 0); rc = bnxt_qplib_rcfw_send_message(rcfw, &msg); if (rc) @@ -174,7 +172,8 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw, attr->is_atomic = bnxt_qplib_is_atomic_cap(rcfw); bail: - bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf); + dma_free_coherent(&rcfw->pdev->dev, sbuf.size, + sbuf.sb, sbuf.dma_addr); return rc; } @@ -717,23 +716,22 @@ int bnxt_qplib_get_roce_stats(struct bnxt_qplib_rcfw *rcfw, struct creq_query_roce_stats_resp_sb *sb; struct cmdq_query_roce_stats req = {}; struct bnxt_qplib_cmdqmsg msg = {}; - struct bnxt_qplib_rcfw_sbuf *sbuf; + struct bnxt_qplib_rcfw_sbuf sbuf; int rc = 0; bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req, CMDQ_BASE_OPCODE_QUERY_ROCE_STATS, sizeof(req)); - sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb)); - if (!sbuf) { - dev_err(&rcfw->pdev->dev, - "SP: QUERY_ROCE_STATS alloc side buffer failed\n"); + sbuf.size = ALIGN(sizeof(*sb), BNXT_QPLIB_CMDQE_UNITS); + sbuf.sb = dma_alloc_coherent(&rcfw->pdev->dev, sbuf.size, + &sbuf.dma_addr, GFP_KERNEL); + if (!sbuf.sb) return -ENOMEM; - } + sb = sbuf.sb; - sb = sbuf->sb; - req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS; - bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, sbuf, sizeof(req), + req.resp_size = sbuf.size / BNXT_QPLIB_CMDQE_UNITS; + bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, &sbuf, sizeof(req), sizeof(resp), 0); rc = bnxt_qplib_rcfw_send_message(rcfw, &msg); if (rc) @@ -789,7 +787,8 @@ int bnxt_qplib_get_roce_stats(struct bnxt_qplib_rcfw *rcfw, } bail: - bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf); + dma_free_coherent(&rcfw->pdev->dev, sbuf.size, + sbuf.sb, sbuf.dma_addr); return rc; } @@ -800,32 +799,31 @@ int bnxt_qplib_qext_stat(struct bnxt_qplib_rcfw *rcfw, u32 fid, struct creq_query_roce_stats_ext_resp_sb *sb; struct cmdq_query_roce_stats_ext req = {}; struct bnxt_qplib_cmdqmsg msg = {}; - struct bnxt_qplib_rcfw_sbuf *sbuf; + struct bnxt_qplib_rcfw_sbuf sbuf; int rc; - sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb)); - if (!sbuf) { - dev_err(&rcfw->pdev->dev, - "SP: QUERY_ROCE_STATS_EXT alloc sb failed"); + sbuf.size = ALIGN(sizeof(*sb), BNXT_QPLIB_CMDQE_UNITS); + sbuf.sb = dma_alloc_coherent(&rcfw->pdev->dev, sbuf.size, + &sbuf.dma_addr, GFP_KERNEL); + if (!sbuf.sb) return -ENOMEM; - } + sb = sbuf.sb; bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req, CMDQ_QUERY_ROCE_STATS_EXT_OPCODE_QUERY_ROCE_STATS, sizeof(req)); - req.resp_size = ALIGN(sizeof(*sb), BNXT_QPLIB_CMDQE_UNITS); - req.resp_addr = cpu_to_le64(sbuf->dma_addr); + req.resp_size = sbuf.size / BNXT_QPLIB_CMDQE_UNITS; + req.resp_addr = cpu_to_le64(sbuf.dma_addr); req.function_id = cpu_to_le32(fid); req.flags = cpu_to_le16(CMDQ_QUERY_ROCE_STATS_EXT_FLAGS_FUNCTION_ID); - bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, sbuf, sizeof(req), + bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, &sbuf, sizeof(req), sizeof(resp), 0); rc = bnxt_qplib_rcfw_send_message(rcfw, &msg); if (rc) goto bail; - sb = sbuf->sb; estat->tx_atomic_req = le64_to_cpu(sb->tx_atomic_req_pkts); estat->tx_read_req = le64_to_cpu(sb->tx_read_req_pkts); estat->tx_read_res = le64_to_cpu(sb->tx_read_res_pkts); @@ -849,7 +847,8 @@ int bnxt_qplib_qext_stat(struct bnxt_qplib_rcfw *rcfw, u32 fid, estat->rx_ecn_marked = le64_to_cpu(sb->rx_ecn_marked_pkts); bail: - bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf); + dma_free_coherent(&rcfw->pdev->dev, sbuf.size, + sbuf.sb, sbuf.dma_addr); return rc; } -- 2.5.5
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smime.p7s
Description: S/MIME Cryptographic Signature