[dpdk-stable] [PATCH v2 3/3] net/iavf: fix V-channel message status

[Alvin Zhang <alvinx.zhang@intel.com>]

Add support of VIRTCHNL_STATUS_ERR_NOT_IMPLEMENTED for facilitating
compatibility with PF.

Chang the error log-level from ERROR to WARNING when a V-channel
message is not supported by PF, because the VF may still be able to
run without certain features which not supported by PF.

Fixes: 0c35eecfe8b5 ("net/iavf: fix VF to PF command failure handling")
Cc: stable@dpdk.org

Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
---
 drivers/net/iavf/iavf_vchnl.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/iavf/iavf_vchnl.c b/drivers/net/iavf/iavf_vchnl.c
index 5d57e8b..ca5c56e 100644
--- a/drivers/net/iavf/iavf_vchnl.c
+++ b/drivers/net/iavf/iavf_vchnl.c
@@ -234,8 +234,10 @@
 			_clear_cmd(vf);
 			err = -EIO;
 		} else if (vf->cmd_retval ==
-			   VIRTCHNL_STATUS_ERR_NOT_SUPPORTED) {
-			PMD_DRV_LOG(ERR, "Cmd %d not supported", args->ops);
+			   VIRTCHNL_STATUS_ERR_NOT_SUPPORTED ||
+			   vf->cmd_retval ==
+			   VIRTCHNL_STATUS_ERR_NOT_IMPLEMENTED) {
+			PMD_DRV_LOG(WARNING, "Cmd %d not supported", args->ops);
 			err = -ENOTSUP;
 		} else if (vf->cmd_retval != VIRTCHNL_STATUS_SUCCESS) {
 			PMD_DRV_LOG(ERR, "Return failure %d for cmd %d",
-- 
1.8.3.1