[dpdk-stable] patch 'net/qede: remove prefetch in Tx path' has been queued to LTS release 18.11.1

[Kevin Traynor]

Hi,

FYI, your patch has been queued to LTS release 18.11.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/14/19. 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.

Thanks.

Kevin Traynor

---
>From 0be9868dee5ee1e9151267495bc9b5c1249bb04a Mon Sep 17 00:00:00 2001
From: Shahed Shaikh <shshaikh at marvell.com>
Date: Fri, 18 Jan 2019 02:29:30 -0800
Subject: [PATCH] net/qede: remove prefetch in Tx path

[ upstream commit d6ddd17fb17cb250044bada4ae42a799375fd6c5 ]

Incorrect placement of prefetch in Tx path is causing
a performance drop of around ~2% on AMD platform.

Fixes: 2ea6f76aff40 ("qede: add core driver")

Signed-off-by: Shahed Shaikh <shshaikh at marvell.com>
Acked-by: Rasesh Mody <rmody at marvell.com>
---
 drivers/net/qede/qede_rxtx.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/qede/qede_rxtx.c b/drivers/net/qede/qede_rxtx.c
index 684c4aeef..eda19b2b1 100644
--- a/drivers/net/qede/qede_rxtx.c
+++ b/drivers/net/qede/qede_rxtx.c
@@ -2182,5 +2182,4 @@ qede_xmit_pkts(void *p_txq, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
 		txq->nb_tx_avail -= bd1->data.nbds;
 		txq->sw_tx_prod++;
-		rte_prefetch0(txq->sw_tx_ring[TX_PROD(txq)].mbuf);
 		bd_prod =
 		    rte_cpu_to_le_16(ecore_chain_get_prod_idx(&txq->tx_pbl));
-- 
2.19.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2019-02-07 13:19:56.454111091 +0000
+++ 0039-net-qede-remove-prefetch-in-Tx-path.patch	2019-02-07 13:19:55.000000000 +0000
@@ -1,13 +1,14 @@
-From d6ddd17fb17cb250044bada4ae42a799375fd6c5 Mon Sep 17 00:00:00 2001
+From 0be9868dee5ee1e9151267495bc9b5c1249bb04a Mon Sep 17 00:00:00 2001
 From: Shahed Shaikh <shshaikh at marvell.com>
 Date: Fri, 18 Jan 2019 02:29:30 -0800
 Subject: [PATCH] net/qede: remove prefetch in Tx path
 
+[ upstream commit d6ddd17fb17cb250044bada4ae42a799375fd6c5 ]
+
 Incorrect placement of prefetch in Tx path is causing
 a performance drop of around ~2% on AMD platform.
 
 Fixes: 2ea6f76aff40 ("qede: add core driver")
-Cc: stable at dpdk.org
 
 Signed-off-by: Shahed Shaikh <shshaikh at marvell.com>
 Acked-by: Rasesh Mody <rmody at marvell.com>