[dpdk-dev,v2] net/mlx5: fix flow director drop rule deletion crash
Checks
Commit Message
Drop flow rules are created on the ETH queue even though the parser layer
matches the flow rule layer (L3/L4)
Fixes: 6f2f4948b236 ("net/mlx5: fix flow director rule deletion crash")
Cc: stable@dpdk.org
Cc: adrien.mazarguil@6wind.com
Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
---
On v2:
- Instead of override parser.layer use HASH_RXQ_ETH directly.
- Remove obvious comments.
---
drivers/net/mlx5/mlx5_flow.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
Comments
On Tue, May 15, 2018 at 09:26:35AM +0300, Shahaf Shuler wrote:
> Drop flow rules are created on the ETH queue even though the parser layer
> matches the flow rule layer (L3/L4)
>
> Fixes: 6f2f4948b236 ("net/mlx5: fix flow director rule deletion crash")
> Cc: stable@dpdk.org
> Cc: adrien.mazarguil@6wind.com
>
> Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
>
> ---
>
> On v2:
> - Instead of override parser.layer use HASH_RXQ_ETH directly.
> - Remove obvious comments.
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Tuesday, May 15, 2018 10:27 AM, Adrien Mazarguil:
> <nelio.laranjeiro@6wind.com>; dev@dpdk.org; stable@dpdk.org
> Subject: Re: [PATCH v2] net/mlx5: fix flow director drop rule deletion crash
>
> On Tue, May 15, 2018 at 09:26:35AM +0300, Shahaf Shuler wrote:
> > Drop flow rules are created on the ETH queue even though the parser
> > layer matches the flow rule layer (L3/L4)
> >
> > Fixes: 6f2f4948b236 ("net/mlx5: fix flow director rule deletion
> > crash")
> > Cc: stable@dpdk.org
> > Cc: adrien.mazarguil@6wind.com
> >
> > Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
> >
Applied to next-net-mlx, thanks.
> > ---
> >
> > On v2:
> > - Instead of override parser.layer use HASH_RXQ_ETH directly.
> > - Remove obvious comments.
>
> Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
>
> --
> Adrien Mazarguil
> 6WIND
@@ -3381,13 +3381,13 @@ mlx5_fdir_filter_delete(struct rte_eth_dev *dev,
if (parser.drop) {
struct ibv_flow_spec_action_drop *drop;
- drop = (void *)((uintptr_t)parser.queue[parser.layer].ibv_attr +
- parser.queue[parser.layer].offset);
+ drop = (void *)((uintptr_t)parser.queue[HASH_RXQ_ETH].ibv_attr +
+ parser.queue[HASH_RXQ_ETH].offset);
*drop = (struct ibv_flow_spec_action_drop){
.type = IBV_FLOW_SPEC_ACTION_DROP,
.size = sizeof(struct ibv_flow_spec_action_drop),
};
- parser.queue[parser.layer].ibv_attr->num_of_specs++;
+ parser.queue[HASH_RXQ_ETH].ibv_attr->num_of_specs++;
}
TAILQ_FOREACH(flow, &priv->flows, next) {
struct ibv_flow_attr *attr;
@@ -3397,11 +3397,14 @@ mlx5_fdir_filter_delete(struct rte_eth_dev *dev,
struct ibv_spec_header *flow_h;
void *flow_spec;
unsigned int specs_n;
+ unsigned int queue_id = parser.drop ? HASH_RXQ_ETH :
+ parser.layer;
- attr = parser.queue[parser.layer].ibv_attr;
- flow_attr = flow->frxq[parser.layer].ibv_attr;
+ attr = parser.queue[queue_id].ibv_attr;
+ flow_attr = flow->frxq[queue_id].ibv_attr;
/* Compare first the attributes. */
- if (memcmp(attr, flow_attr, sizeof(struct ibv_flow_attr)))
+ if (!flow_attr ||
+ memcmp(attr, flow_attr, sizeof(struct ibv_flow_attr)))
continue;
if (attr->num_of_specs == 0)
continue;