From: Guoqing Jiang <guoqing.jiang@linux.dev>
Date: Sun, 3 Dec 2023 09:26:52 +0000 (+0800)
Subject: RDMA/siw: Move tx_cpu ahead
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=84de14baf81675a98dc0fe617a93eacf9a417de3;p=linux.git

RDMA/siw: Move tx_cpu ahead

We can reduce one cacheline for the usage of struct siw_qp.

Before,

	/* size: 1928, cachelines: 31, members: 38 */
	/* sum members: 1920, holes: 2, sum holes: 8 */
	/* paddings: 4, sum paddings: 13 */
	/* forced alignments: 3 */

after

	/* size: 1920, cachelines: 30, members: 38 */
	/* paddings: 4, sum paddings: 13 */
	/* forced alignments: 3 */

Link: https://lore.kernel.org/r/20231203092655.28102-2-guoqing.jiang@linux.dev
Acked-by: Bernard Metzler <bmt@zurich.ibm.com>
Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---

diff --git a/drivers/infiniband/sw/siw/siw.h b/drivers/infiniband/sw/siw/siw.h
index b36d1ec253278..d14bb965af755 100644
--- a/drivers/infiniband/sw/siw/siw.h
+++ b/drivers/infiniband/sw/siw/siw.h
@@ -417,10 +417,10 @@ struct siw_iwarp_tx {
 struct siw_qp {
 	struct ib_qp base_qp;
 	struct siw_device *sdev;
+	int tx_cpu;
 	struct kref ref;
 	struct completion qp_free;
 	struct list_head devq;
-	int tx_cpu;
 	struct siw_qp_attrs attrs;
 
 	struct siw_cep *cep;