[dpdk-stable] patch 'net/bnxt: disable end of packet padding for Rx' has been queued to stable release 19.11.7

[Christian Ehrhardt]

Hi,

FYI, your patch has been queued to stable release 19.11.7

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/06/21. 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/cpaelzer/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/cpaelzer/dpdk-stable-queue/commit/05648cbaa45ea55fc160590d429f23f859370cfb

Thanks.

Christian Ehrhardt <christian.ehrhardt at canonical.com>

---
>From 05648cbaa45ea55fc160590d429f23f859370cfb Mon Sep 17 00:00:00 2001
From: Lance Richardson <lance.richardson at broadcom.com>
Date: Thu, 3 Dec 2020 09:16:21 -0500
Subject: [PATCH] net/bnxt: disable end of packet padding for Rx

[ upstream commit b4938fad44912967636b96990ddba01ef6bc3064 ]

Testing has shown that the packet forwarding rate for packet sizes
that are not a multiple of the cache line size is reduced when the
DMA size is padded to a multiple of the cache line size. Improve
performance for these packet sizes by disabling EOP padding.

Fixes: f4253e97e7b0 ("net/bnxt: set padding flags in Rx descriptor")

Signed-off-by: Lance Richardson <lance.richardson at broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur at broadcom.com>
---
 drivers/net/bnxt/bnxt_rxr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/bnxt/bnxt_rxr.c b/drivers/net/bnxt/bnxt_rxr.c
index 5271d02366..c90ed517ce 100644
--- a/drivers/net/bnxt/bnxt_rxr.c
+++ b/drivers/net/bnxt/bnxt_rxr.c
@@ -842,7 +842,7 @@ int bnxt_init_one_rx_ring(struct bnxt_rx_queue *rxq)
 	size = rte_pktmbuf_data_room_size(rxq->mb_pool) - RTE_PKTMBUF_HEADROOM;
 	size = RTE_MIN(BNXT_MAX_PKT_LEN, size);
 
-	type = RX_PROD_PKT_BD_TYPE_RX_PROD_PKT | RX_PROD_PKT_BD_FLAGS_EOP_PAD;
+	type = RX_PROD_PKT_BD_TYPE_RX_PROD_PKT;
 
 	rxr = rxq->rx_ring;
 	ring = rxr->rx_ring_struct;
-- 
2.30.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2021-02-04 12:04:28.747081889 +0100
+++ 0013-net-bnxt-disable-end-of-packet-padding-for-Rx.patch	2021-02-04 12:04:27.822789527 +0100
@@ -1 +1 @@
-From b4938fad44912967636b96990ddba01ef6bc3064 Mon Sep 17 00:00:00 2001
+From 05648cbaa45ea55fc160590d429f23f859370cfb Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit b4938fad44912967636b96990ddba01ef6bc3064 ]
+
@@ -12 +13,0 @@
-Cc: stable at dpdk.org
@@ -22 +23 @@
-index fdbe6f71ea..af1774844a 100644
+index 5271d02366..c90ed517ce 100644
@@ -25 +26 @@
-@@ -1113,7 +1113,7 @@ int bnxt_init_one_rx_ring(struct bnxt_rx_queue *rxq)
+@@ -842,7 +842,7 @@ int bnxt_init_one_rx_ring(struct bnxt_rx_queue *rxq)