[dpdk-dev] [PATCH] net/ice: ignore error when remove RSS rule
Qi Zhang
qi.z.zhang at intel.com
Tue Nov 12 15:28:36 CET 2019
Currently, multiple rte_flow RSS rules may mapping to the same
hardware rule if a later rule is just for inputset change or symm
turn on/off. so after one of the rules be destroyed, we will
get error ICE_ERR_DOES_NOT_EXIST when destroying any other rules.
The patch simply fix this by ignore this error. A more sophistic
fix that remember the sequence and replay properly will be provided
in future.
Fixes: 5ad3db8d4bdd ("net/ice: enable advanced RSS")
Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
---
drivers/net/ice/ice_hash.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ice/ice_hash.c b/drivers/net/ice/ice_hash.c
index d88434305..2e9c1bc67 100644
--- a/drivers/net/ice/ice_hash.c
+++ b/drivers/net/ice/ice_hash.c
@@ -536,7 +536,12 @@ ice_hash_destroy(struct ice_adapter *ad,
ret = ice_rem_rss_cfg(hw, vsi->idx,
filter_ptr->rss_cfg.hashed_flds,
filter_ptr->rss_cfg.packet_hdr);
- if (ret) {
+ /* Fixme: Ignore the error if a rule does not exist.
+ * Currently a rule for inputset change or symm turn on/off
+ * will overwrite an exist rule, while application still
+ * have 2 rte_flow handles.
+ **/
+ if (ret && ret != ICE_ERR_DOES_NOT_EXIST) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
"rss flow destroy fail");
--
2.13.6
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