[PATCH V2 04/10] i40iw: Optimize inline data copy

[Tatyana Nikolova <tatyana.e.nikolova-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>]

From: Mustafa Ismail <mustafa.ismail-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

Use memcpy for inline data copy in sends
and writes instead of byte by byte copy.

Signed-off-by: Mustafa Ismail <mustafa.ismail-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
 providers/i40iw/i40iw_uk.c | 24 ++++++++++--------------
 1 file changed, 10 insertions(+), 14 deletions(-)

diff --git a/providers/i40iw/i40iw_uk.c b/providers/i40iw/i40iw_uk.c
index 9b1a618..bf194f3 100644
--- a/providers/i40iw/i40iw_uk.c
+++ b/providers/i40iw/i40iw_uk.c
@@ -432,7 +432,7 @@ 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;
@@ -468,14 +468,12 @@ static enum i40iw_status_code i40iw_inline_rdma_write(struct i40iw_qp_uk *qp,
 	src = (u8 *)(op_info->data);
 
 	if (op_info->len <= I40IW_BYTE_16) {
-		for (i = 0; i < op_info->len; i++, src++, dest++)
-			*dest = *src;
+		memcpy(dest, src, op_info->len);
 	} else {
-		for (i = 0; i < I40IW_BYTE_16; i++, src++, dest++)
-			*dest = *src;
+		memcpy(dest, src, I40IW_BYTE_16);
+		src += I40IW_BYTE_16;
 		dest = (u8 *)wqe + I40IW_BYTE_32;
-		for (; i < op_info->len; i++, src++, dest++)
-			*dest = *src;
+		memcpy(dest, src, op_info->len - I40IW_BYTE_16);
 	}
 
 	i40iw_wmb(); /* make sure WQE is populated before valid bit is set */
@@ -510,7 +508,7 @@ 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;
@@ -544,14 +542,12 @@ static enum i40iw_status_code i40iw_inline_send(struct i40iw_qp_uk *qp,
 	src = (u8 *)(op_info->data);
 
 	if (op_info->len <= I40IW_BYTE_16) {
-		for (i = 0; i < op_info->len; i++, src++, dest++)
-			*dest = *src;
+		memcpy(dest, src, op_info->len);
 	} else {
-		for (i = 0; i < I40IW_BYTE_16; i++, src++, dest++)
-			*dest = *src;
+		memcpy(dest, src, I40IW_BYTE_16);
+		src += I40IW_BYTE_16;
 		dest = (u8 *)wqe + I40IW_BYTE_32;
-		for (; i < op_info->len; i++, src++, dest++)
-			*dest = *src;
+		memcpy(dest, src, op_info->len - I40IW_BYTE_16);
 	}
 
 	i40iw_wmb(); /* make sure WQE is populated before valid bit is set */
-- 
1.8.5.2

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