patches for DPDK stable branches
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* [dpdk-stable] [PATCH v4] net/iavf: fix wrong RSS hash update
       [not found] <20210305060424.21917-1>
@ 2021-03-15  0:59 ` Wenjun Wu
  2021-03-24 14:47   ` Ferruh Yigit
  0 siblings, 1 reply; 2+ messages in thread
From: Wenjun Wu @ 2021-03-15  0:59 UTC (permalink / raw)
  To: dev, jingjing.wu, beilei.xing; +Cc: Wenjun Wu, stable

This patch change judgment statements to disable RSS for vf
when users need to disable RSS or RSS hash function configured
is not supported.

Fixes: 95f2f0e9fc2a ("net/iavf: improve default RSS")
Cc: stable@dpdk.org

Signed-off-by: Wenjun Wu <wenjun1.wu@intel.com>

---
v4: clear existing RSS when rss_hf = 0.
v3: fix the same issue for both pf and vf.
---
 drivers/net/iavf/iavf_ethdev.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethdev.c
index 4d3772202..8610efba6 100644
--- a/drivers/net/iavf/iavf_ethdev.c
+++ b/drivers/net/iavf/iavf_ethdev.c
@@ -1250,8 +1250,17 @@ iavf_dev_rss_hash_update(struct rte_eth_dev *dev,
 	if (ret)
 		return ret;
 
-	if (rss_conf->rss_hf == 0)
+	if (rss_conf->rss_hf == 0) {
+		vf->rss_hf = 0;
+		ret = iavf_set_hena(adapter, 0);
+
+		/* It is a workaround, temporarily allow error to be returned
+		 * due to possible lack of PF handling for hena = 0.
+		 */
+		if (ret)
+			PMD_DRV_LOG(WARNING, "fail to clean existing RSS, lack PF support");
 		return 0;
+	}
 
 	if (vf->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF) {
 		/* Clear existing RSS. */
-- 
2.25.1


^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [dpdk-stable] [PATCH v4] net/iavf: fix wrong RSS hash update
  2021-03-15  0:59 ` [dpdk-stable] [PATCH v4] net/iavf: fix wrong RSS hash update Wenjun Wu
@ 2021-03-24 14:47   ` Ferruh Yigit
  0 siblings, 0 replies; 2+ messages in thread
From: Ferruh Yigit @ 2021-03-24 14:47 UTC (permalink / raw)
  To: Wenjun Wu, dev, jingjing.wu, beilei.xing; +Cc: stable

On 3/15/2021 12:59 AM, Wenjun Wu wrote:
> This patch change judgment statements to disable RSS for vf
> when users need to disable RSS or RSS hash function configured
> is not supported.
> 
> Fixes: 95f2f0e9fc2a ("net/iavf: improve default RSS")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Wenjun Wu <wenjun1.wu@intel.com>
> 
> ---
> v4: clear existing RSS when rss_hf = 0.
> v3: fix the same issue for both pf and vf.

Applied to dpdk-next-net-intel.

^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2021-03-24 14:47 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
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     [not found] <20210305060424.21917-1>
2021-03-15  0:59 ` [dpdk-stable] [PATCH v4] net/iavf: fix wrong RSS hash update Wenjun Wu
2021-03-24 14:47   ` Ferruh Yigit

patches for DPDK stable branches

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