From e7f9774af591d346990f1d6dfca0ee9caeb52756 Mon Sep 17 00:00:00 2001 From: Henry Orosco Date: Wed, 9 Nov 2016 21:28:02 -0600 Subject: [PATCH] i40iw: Optimize inline data copy Use memcpy for inline data copy in sends and writes instead of byte by byte copy. Signed-off-by: Mustafa Ismail Signed-off-by: Henry Orosco Signed-off-by: Doug Ledford --- drivers/infiniband/hw/i40iw/i40iw_uk.c | 24 ++++++++++-------------- 1 file changed, 10 insertions(+), 14 deletions(-) diff --git a/drivers/infiniband/hw/i40iw/i40iw_uk.c b/drivers/infiniband/hw/i40iw/i40iw_uk.c index 4d28c3c..47cb2e0 100644 --- a/drivers/infiniband/hw/i40iw/i40iw_uk.c +++ b/drivers/infiniband/hw/i40iw/i40iw_uk.c @@ -430,7 +430,7 @@ static enum i40iw_status_code i40iw_inline_rdma_write(struct i40iw_qp_uk *qp, struct i40iw_inline_rdma_write *op_info; u64 *push; u64 header = 0; - u32 i, wqe_idx; + u32 wqe_idx; enum i40iw_status_code ret_code; bool read_fence = false; u8 wqe_size; @@ -465,14 +465,12 @@ static enum i40iw_status_code i40iw_inline_rdma_write(struct i40iw_qp_uk *qp, src = (u8 *)(op_info->data); if (op_info->len <= 16) { - for (i = 0; i < op_info->len; i++, src++, dest++) - *dest = *src; + memcpy(dest, src, op_info->len); } else { - for (i = 0; i < 16; i++, src++, dest++) - *dest = *src; + memcpy(dest, src, 16); + src += 16; dest = (u8 *)wqe + 32; - for (; i < op_info->len; i++, src++, dest++) - *dest = *src; + memcpy(dest, src, op_info->len - 16); } wmb(); /* make sure WQE is populated before valid bit is set */ @@ -507,7 +505,7 @@ static enum i40iw_status_code i40iw_inline_send(struct i40iw_qp_uk *qp, u8 *dest, *src; struct i40iw_post_inline_send *op_info; u64 header; - u32 wqe_idx, i; + u32 wqe_idx; enum i40iw_status_code ret_code; bool read_fence = false; u8 wqe_size; @@ -540,14 +538,12 @@ static enum i40iw_status_code i40iw_inline_send(struct i40iw_qp_uk *qp, src = (u8 *)(op_info->data); if (op_info->len <= 16) { - for (i = 0; i < op_info->len; i++, src++, dest++) - *dest = *src; + memcpy(dest, src, op_info->len); } else { - for (i = 0; i < 16; i++, src++, dest++) - *dest = *src; + memcpy(dest, src, 16); + src += 16; dest = (u8 *)wqe + 32; - for (; i < op_info->len; i++, src++, dest++) - *dest = *src; + memcpy(dest, src, op_info->len - 16); } wmb(); /* make sure WQE is populated before valid bit is set */ -- 2.7.4