[dpdk-stable] [PATCH] net/ixgbe: fix incorrect mask flag

[dpdk-stable] [PATCH] net/ixgbe: fix incorrect mask flag

[Qi Zhang]

After fail to create a flow and if this is the first flow, the
mask_added flag should be reset, or it will prevent a new flow
which require different mask be created, since the mask config
remains impact.

Fixes: 72c135a89f8 ("net/ixgbe: create consistent filter")
Cc: stable@dpdk.org

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
 drivers/net/ixgbe/ixgbe_flow.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ixgbe/ixgbe_flow.c b/drivers/net/ixgbe/ixgbe_flow.c
index 05df4af..d679608 100644
--- a/drivers/net/ixgbe/ixgbe_flow.c
+++ b/drivers/net/ixgbe/ixgbe_flow.c
@@ -2681,6 +2681,7 @@ ixgbe_flow_create(struct rte_eth_dev *dev,
 	struct ixgbe_eth_l2_tunnel_conf_ele *l2_tn_filter_ptr;
 	struct ixgbe_fdir_rule_ele *fdir_rule_ptr;
 	struct ixgbe_flow_mem *ixgbe_flow_mem_ptr;
+	uint8_t first_mask = FALSE;
 
 	flow = rte_zmalloc("ixgbe_rte_flow", sizeof(struct rte_flow), 0);
 	if (!flow) {
@@ -2784,6 +2785,7 @@ ixgbe_flow_create(struct rte_eth_dev *dev,
 					goto out;
 
 				fdir_info->mask_added = TRUE;
+				first_mask = TRUE;
 			} else {
 				/**
 				 * Only support one global mask,
@@ -2818,8 +2820,15 @@ ixgbe_flow_create(struct rte_eth_dev *dev,
 				return flow;
 			}
 
-			if (ret)
+			if (ret) {
+				/**
+				 * clean the mask_added flag if fail to
+				 * program
+				 **/
+				if (first_mask)
+					fdir_info->mask_added = FALSE;
 				goto out;
+			}
 		}
 
 		goto out;
-- 
2.9.4

Re: [dpdk-stable] [dpdk-dev] [PATCH] net/ixgbe: fix incorrect mask flag

[Thomas Monjalon]

02/08/2017 23:38, Qi Zhang:
> After fail to create a flow and if this is the first flow, the
> mask_added flag should be reset, or it will prevent a new flow
> which require different mask be created, since the mask config
> remains impact.
> 
> Fixes: 72c135a89f8 ("net/ixgbe: create consistent filter")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>

Applied without ack, on Ferruh's advice, thanks