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From: Xueming Li <xuemingl@nvidia.com>
To: Beilei Xing <beilei.xing@intel.com>
CC: Luca Boccassi <bluca@debian.org>, Hengjian Zhang
<hengjianx.zhang@intel.com>, Jeff Guo <jia.guo@intel.com>, dpdk stable
<stable@dpdk.org>
Date: Mon, 10 May 2021 23:59:48 +0800
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Subject: [dpdk-stable] patch 'net/i40evf: fix packet loss for X722' has been
queued to stable release 20.11.2
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Errors-To: stable-bounces@dpdk.org
Sender: "stable" <stable-bounces@dpdk.org>
Hi,
FYI, your patch has been queued to stable release 20.11.2
Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/12/21. 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/steevenlee/dpdk
This queued commit can be viewed at:
https://github.com/steevenlee/dpdk/commit/94610393111ac87f41e5ee6550a843b743b172d2
Thanks.
Xueming Li <xuemingl@nvidia.com>
---
>From 94610393111ac87f41e5ee6550a843b743b172d2 Mon Sep 17 00:00:00 2001
From: Beilei Xing <beilei.xing@intel.com>
Date: Wed, 24 Feb 2021 10:09:00 +0800
Subject: [PATCH] net/i40evf: fix packet loss for X722
Cc: Luca Boccassi <bluca@debian.org>
[ upstream commit c45bd78e07e9d4b5ffc29748b9b7d4127293597a ]
When Tx queue number is more than Rx queue number, and RSS is
enabled, there'll be packet loss with X722.
The root cause is the lookup table is not configured correctly,
since it uses VF's queue pair number but not Rx queue number.
Fixes: 2da3ba746795 ("net/i40e: fix VF runtime queues RSS config")
Signed-off-by: Beilei Xing <beilei.xing@intel.com>
Signed-off-by: Hengjian Zhang <hengjianx.zhang@intel.com>
Acked-by: Jeff Guo <jia.guo@intel.com>
---
drivers/net/i40e/i40e_ethdev_vf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index bca8cb80e4..62acad702d 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -2745,7 +2745,7 @@ i40evf_config_rss(struct i40e_vf *vf)
}
for (i = 0; i < rss_lut_size; i++)
- lut_info[i] = i % vf->num_queue_pairs;
+ lut_info[i] = i % num;
ret = i40evf_set_rss_lut(&vf->vsi, lut_info,
rss_lut_size);
--
2.25.1
---
Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- - 2021-05-10 23:59:27.704359600 +0800
+++ 0040-net-i40evf-fix-packet-loss-for-X722.patch 2021-05-10 23:59:26.380000000 +0800
@@ -1 +1 @@
-From c45bd78e07e9d4b5ffc29748b9b7d4127293597a Mon Sep 17 00:00:00 2001
+From 94610393111ac87f41e5ee6550a843b743b172d2 Mon Sep 17 00:00:00 2001
@@ -4,0 +5,3 @@
+Cc: Luca Boccassi <bluca@debian.org>
+
+[ upstream commit c45bd78e07e9d4b5ffc29748b9b7d4127293597a ]
@@ -12 +14,0 @@
-Cc: stable@dpdk.org
@@ -22 +24 @@
-index 2909b4d894..0c9bd8d2c6 100644
+index bca8cb80e4..62acad702d 100644
@@ -25 +27 @@
-@@ -2746,7 +2746,7 @@ i40evf_config_rss(struct i40e_vf *vf)
+@@ -2745,7 +2745,7 @@ i40evf_config_rss(struct i40e_vf *vf)