diff mbox

[dpdk-dev,v2] net/i40e: fix vsi removing from tailq when release

Message ID 1469424969-32205-1-git-send-email-jingjing.wu@intel.com (mailing list archive)
State Accepted, archived
Headers

Commit Message

Jingjing Wu July 25, 2016, 5:36 a.m. UTC 
  VSI structure need to be removed from TAILQ list when releasing.
But for the child VSI it will be removed again after the structure
is freed. It will cause core dump when the DPDK i40e using as PF
host driver.

This patch fixes it to only remove child VSI from TAILQ before
send adminq command to remove it from hardware.

Fixes: 4861cde46116 ("i40e: new poll mode driver")
Fixes: 440499cf5376 ("net/i40e: support floating VEB")
Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
---
v2 change:
 - add fix for floating veb case

 drivers/net/i40e/i40e_ethdev.c | 2 --
 1 file changed, 2 deletions(-)

Comments

Zhang, Helin July 25, 2016, 12:51 p.m. UTC | #1 
> -----Original Message-----
> From: Wu, Jingjing
> Sent: Monday, July 25, 2016 1:36 PM
> To: Zhang, Helin <helin.zhang@intel.com>
> Cc: dev@dpdk.org; Wu, Jingjing <jingjing.wu@intel.com>; Xing, Beilei
> <beilei.xing@intel.com>; Peng, Yuan <yuan.peng@intel.com>
> Subject: [PATCH v2] net/i40e: fix vsi removing from tailq when release
> 
> VSI structure need to be removed from TAILQ list when releasing.
> But for the child VSI it will be removed again after the structure is freed. It will
> cause core dump when the DPDK i40e using as PF host driver.
> 
> This patch fixes it to only remove child VSI from TAILQ before send adminq
> command to remove it from hardware.
> 
> Fixes: 4861cde46116 ("i40e: new poll mode driver")
> Fixes: 440499cf5376 ("net/i40e: support floating VEB")
> Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
Thomas Monjalon July 25, 2016, 2:57 p.m. UTC | #2 
> > VSI structure need to be removed from TAILQ list when releasing.
> > But for the child VSI it will be removed again after the structure is freed. It will
> > cause core dump when the DPDK i40e using as PF host driver.
> > 
> > This patch fixes it to only remove child VSI from TAILQ before send adminq
> > command to remove it from hardware.
> > 
> > Fixes: 4861cde46116 ("i40e: new poll mode driver")
> > Fixes: 440499cf5376 ("net/i40e: support floating VEB")
> > Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
> Acked-by: Helin Zhang <helin.zhang@intel.com>

Applied, thanks
diff mbox

Patch

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 11a5804..d0aeb70 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -4110,7 +4110,6 @@  i40e_vsi_release(struct i40e_vsi *vsi)
 		TAILQ_FOREACH_SAFE(vsi_list, &vsi->veb->head, list, temp) {
 			if (i40e_vsi_release(vsi_list->vsi) != I40E_SUCCESS)
 				return -1;
-			TAILQ_REMOVE(&vsi->veb->head, vsi_list, list);
 		}
 		i40e_veb_release(vsi->veb);
 	}
@@ -4119,7 +4118,6 @@  i40e_vsi_release(struct i40e_vsi *vsi)
 		TAILQ_FOREACH_SAFE(vsi_list, &vsi->floating_veb->head, list, temp) {
 			if (i40e_vsi_release(vsi_list->vsi) != I40E_SUCCESS)
 				return -1;
-			TAILQ_REMOVE(&vsi->floating_veb->head, vsi_list, list);
 		}
 	}