[dpdk-stable] patch 'net/mlx5: fix max number of queues for NEON Tx' has been queued to LTS release 18.11.2

Kevin Traynor ktraynor at redhat.com
Wed May 8 18:02:26 CEST 2019


Hi,

FYI, your patch has been queued to LTS release 18.11.2

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/14/19. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable-queue/commit/3554998505251fb9a9ace8b09fbeb5b68ae0a697

Thanks.

Kevin Traynor

---
>From 3554998505251fb9a9ace8b09fbeb5b68ae0a697 Mon Sep 17 00:00:00 2001
From: Yongseok Koh <yskoh at mellanox.com>
Date: Tue, 30 Apr 2019 18:37:17 -0700
Subject: [PATCH] net/mlx5: fix max number of queues for NEON Tx

[ upstream commit 9cc42c58931a428a94e9adf7019eb97faa8fddb1 ]

BlueField SmartNIC has 0xa2d2 as PCI device ID on both ARM and x86 host. On
ARM side, Tx inlining need not be used as PCI bandwidth is not bottleneck.
Vectorized Tx can still be used up to 16 queues. For other archs
(e.g., x86), keep using the default value.

Fixes: 09d8b41699bb ("net/mlx5: make vectorized Tx threshold configurable")

Signed-off-by: Yongseok Koh <yskoh at mellanox.com>
Acked-by: Shahaf Shuler <shahafs at mellanox.com>
---
 drivers/net/mlx5/mlx5_defs.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/mlx5/mlx5_defs.h b/drivers/net/mlx5/mlx5_defs.h
index bfe665580..480b33c81 100644
--- a/drivers/net/mlx5/mlx5_defs.h
+++ b/drivers/net/mlx5/mlx5_defs.h
@@ -64,8 +64,9 @@
 #if defined(RTE_ARCH_ARM64)
 #define MLX5_VPMD_MAX_TXQS 8
+#define MLX5_VPMD_MAX_TXQS_BLUEFIELD 16
 #else
 #define MLX5_VPMD_MAX_TXQS 4
+#define MLX5_VPMD_MAX_TXQS_BLUEFIELD MLX5_VPMD_MAX_TXQS
 #endif
-#define MLX5_VPMD_MAX_TXQS_BLUEFIELD 16
 
 /* Threshold of buffer replenishment for vectorized Rx. */
-- 
2.20.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2019-05-08 16:33:58.941302021 +0100
+++ 0029-net-mlx5-fix-max-number-of-queues-for-NEON-Tx.patch	2019-05-08 16:33:57.442577205 +0100
@@ -1 +1 @@
-From 9cc42c58931a428a94e9adf7019eb97faa8fddb1 Mon Sep 17 00:00:00 2001
+From 3554998505251fb9a9ace8b09fbeb5b68ae0a697 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 9cc42c58931a428a94e9adf7019eb97faa8fddb1 ]
+
@@ -12 +13,0 @@
-Cc: stable at dpdk.org
@@ -21 +22 @@
-index 69b6960e9..13801a5c2 100644
+index bfe665580..480b33c81 100644


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