linux-kernel - [PATCH net v3 1/2] bnxt_en: ethtool: Supply ntuple rss context action

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Message-ID: <2e884ae39e08dc5123be7c170a6089cefe6a78f7.1732748253.git.dxu@dxuuu.xyz>
Date: Wed, 27 Nov 2024 15:58:29 -0700
From: Daniel Xu <dxu@...uu.xyz>
To: andrew+netdev@...n.ch,
	pabeni@...hat.com,
	pavan.chebbi@...adcom.com,
	kalesh-anakkur.purayil@...adcom.com,
	davem@...emloft.net,
	michael.chan@...adcom.com,
	edumazet@...gle.com,
	kuba@...nel.org,
	martin.lau@...ux.dev,
	ecree.xilinx@...il.com
Cc: netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	kernel-team@...a.com
Subject: [PATCH net v3 1/2] bnxt_en: ethtool: Supply ntuple rss context action

Commit 2f4f9fe5bf5f ("bnxt_en: Support adding ntuple rules on RSS
contexts") added support for redirecting to an RSS context as an ntuple
rule action. However, it forgot to update the ETHTOOL_GRXCLSRULE
codepath. This caused `ethtool -n` to always report the action as
"Action: Direct to queue 0" which is wrong.

Fix by teaching bnxt driver to report the RSS context when applicable.

Fixes: 2f4f9fe5bf5f ("bnxt_en: Support adding ntuple rules on RSS contexts")
Reviewed-by: Michael Chan <michael.chan@...adcom.com>
Signed-off-by: Daniel Xu <dxu@...uu.xyz>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index f1f6bb328a55..d87681d71106 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -1187,10 +1187,14 @@ static int bnxt_grxclsrule(struct bnxt *bp, struct ethtool_rxnfc *cmd)
 		}
 	}
 
-	if (fltr->base.flags & BNXT_ACT_DROP)
+	if (fltr->base.flags & BNXT_ACT_DROP) {
 		fs->ring_cookie = RX_CLS_FLOW_DISC;
-	else
+	} else if (fltr->base.flags & BNXT_ACT_RSS_CTX) {
+		fs->flow_type |= FLOW_RSS;
+		cmd->rss_context = fltr->base.fw_vnic_id;
+	} else {
 		fs->ring_cookie = fltr->base.rxq;
+	}
 	rc = 0;
 
 fltr_err:
-- 
2.46.0