netdev - [net-next 11/16] net/mlx5e: RX, Use indirect calls wrapper for posting descriptors

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200226011246.70129-12-saeedm@mellanox.com>
Date:   Tue, 25 Feb 2020 17:12:41 -0800
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>, kuba@...nel.org
Cc:     netdev@...r.kernel.org, Tariq Toukan <tariqt@...lanox.com>,
        Maxim Mikityanskiy <maximmi@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>
Subject: [net-next 11/16] net/mlx5e: RX, Use indirect calls wrapper for posting descriptors

From: Tariq Toukan <tariqt@...lanox.com>

We can avoid an indirect call per NAPI cycle wrapping the RX descriptors
posting call with the appropriate helper.

Signed-off-by: Tariq Toukan <tariqt@...lanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c
index 257a7c9f7a14..267f4535c36b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c
@@ -31,6 +31,7 @@
  */
 
 #include <linux/irq.h>
+#include <linux/indirect_call_wrapper.h>
 #include "en.h"
 #include "en/xdp.h"
 #include "en/xsk/rx.h"
@@ -99,7 +100,10 @@ static bool mlx5e_napi_xsk_post(struct mlx5e_xdpsq *xsksq, struct mlx5e_rq *xskr
 	busy_xsk |= mlx5e_xsk_tx(xsksq, MLX5E_TX_XSK_POLL_BUDGET);
 	mlx5e_xsk_update_tx_wakeup(xsksq);
 
-	xsk_rx_alloc_err = xskrq->post_wqes(xskrq);
+	xsk_rx_alloc_err = INDIRECT_CALL_2(xskrq->post_wqes,
+					   mlx5e_post_rx_mpwqes,
+					   mlx5e_post_rx_wqes,
+					   xskrq);
 	busy_xsk |= mlx5e_xsk_update_rx_wakeup(xskrq, xsk_rx_alloc_err);
 
 	return busy_xsk;
@@ -142,7 +146,10 @@ int mlx5e_napi_poll(struct napi_struct *napi, int budget)
 
 	mlx5e_poll_ico_cq(&c->icosq.cq);
 
-	busy |= rq->post_wqes(rq);
+	busy |= INDIRECT_CALL_2(rq->post_wqes,
+				mlx5e_post_rx_mpwqes,
+				mlx5e_post_rx_wqes,
+				rq);
 	if (xsk_open) {
 		mlx5e_poll_ico_cq(&c->xskicosq.cq);
 		busy |= mlx5e_poll_xdpsq_cq(&xsksq->cq);
-- 
2.24.1