hi, qi

On 5/12/2020 10:21 AM, Zhang, Qi Z wrote:

-----Original Message-----
From: Zhang, Qi Z
Sent: Tuesday, May 12, 2020 10:18 AM
To: Guo, Jia <jia....@intel.com>; Xing, Beilei <beilei.x...@intel.com>; Wu,
Jingjing <jingjing...@intel.com>
Cc: Ye, Xiaolong <xiaolong...@intel.com>; dev@dpdk.org
Subject: RE: [dpdk-dev] net/iavf: fix rss algorithm configure issue



-----Original Message-----
From: Guo, Jia <jia....@intel.com>
Sent: Sunday, May 10, 2020 4:28 AM
To: Xing, Beilei <beilei.x...@intel.com>; Zhang, Qi Z
<qi.z.zh...@intel.com>; Wu, Jingjing <jingjing...@intel.com>
Cc: Ye, Xiaolong <xiaolong...@intel.com>; dev@dpdk.org; Guo, Jia
<jia....@intel.com>
Subject: [dpdk-dev] net/iavf: fix rss algorithm configure issue

When configure rss rule, the etherdev rss hash function type should be
mapped to the corresponding virtchnl rss algorithm type.

Fixes: 7be10c3004be ("net/iavf: add RSS configuration for VF")
Signed-off-by: Jeff Guo <jia....@intel.com>
---
  drivers/net/iavf/iavf_hash.c | 20 +++++++++++---------
  1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/drivers/net/iavf/iavf_hash.c
b/drivers/net/iavf/iavf_hash.c index 6359ead76..173b7633f 100644
--- a/drivers/net/iavf/iavf_hash.c
+++ b/drivers/net/iavf/iavf_hash.c
@@ -47,7 +47,7 @@ struct iavf_hash_match_type {

  struct iavf_rss_meta {
        struct virtchnl_proto_hdrs *proto_hdrs;
-       uint32_t hash_function;
+       enum virtchnl_rss_algorithm rss_algorithm;
  };

  struct iavf_hash_flow_cfg {
@@ -1001,13 +1001,15 @@ iavf_hash_parse_action(struct
iavf_pattern_match_item *pattern_match_item,

                        /* Check hash function and save it to rss_meta. */
                        if (rss->func == RTE_ETH_HASH_FUNCTION_SIMPLE_XOR)
-                               rss_meta->hash_function =
-                               RTE_ETH_HASH_FUNCTION_SIMPLE_XOR;
-
-                       if (rss->func ==
-                           RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ)
-                               rss_meta->hash_function =
-                               RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ;
+                               rss_meta->rss_algorithm =
+                                       VIRTCHNL_RSS_ALG_R_ASYMMETRIC;
RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ -->
VIRTCHNL_RSS_ALG_R_ASYMMETRIC
A typo, it is
RTE_ETH_HASH_FUNCTION_SIMPLE_XOR --> VIRTCHNL_RSS_ALG_R_ASYMMETRIC which looks 
not correct.
Is it should be VIRTCHNL_RSS_ALG_XOR_SYMMETRIC?



At currently driver,  VIRTCHNL_RSS_ALG_R_ASYMMETRIC is used to identify simple XOR.


+                       else if (rss->func ==
+                                RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ)
+                               rss_meta->rss_algorithm =
+                                       VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC;
+                       else
+                               rss_meta->rss_algorithm =
+                                       VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC;

                        type_match_item =
                        rte_zmalloc("iavf_type_match_item",
@@ -1126,7 +1128,7 @@ iavf_hash_create(__rte_unused struct
iavf_adapter *ad,
        }

        rss_cfg->proto_hdrs = *rss_meta->proto_hdrs;
-       rss_cfg->rss_algorithm = rss_meta->hash_function;
+       rss_cfg->rss_algorithm = rss_meta->rss_algorithm;

        ret = iavf_add_del_rss_cfg(ad, rss_cfg, true);
        if (!ret) {
--
2.20.1

Reply via email to