net/i40evf: fix packet loss for X722

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>
Acked-by: Jeff Guo <jia.guo@intel.com>

diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index 2909b4d..0c9bd8d 100644 (file)
--- 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);