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From: beilei.xing@intel.com
To: jia.guo@intel.com
Cc: dev@dpdk.org, Beilei Xing <beilei.xing@intel.com>,
	stable@dpdk.org, Hengjian Zhang <hengjianx.zhang@intel.com>
Subject: [dpdk-dev] [PATCH] net/i40evf: fix packet loss issue for X722
Date: Wed, 24 Feb 2021 10:09:00 +0800	[thread overview]
Message-ID: <20210224020900.93574-1-beilei.xing@intel.com> (raw)

From: Beilei Xing <beilei.xing@intel.com>

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")
Cc: stable@dpdk.org

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
Signed-off-by: Hengjian Zhang <hengjianx.zhang@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 2909b4d894..0c9bd8d2c6 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -2746,7 +2746,7 @@ 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);
-- 
2.26.2


             reply	other threads:[~2021-02-24  2:22 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-24  2:09 beilei.xing [this message]
2021-02-24  2:34 ` Guo, Jia
2021-03-05  8:49   ` Zhang, Qi Z

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