netdev - [PATCH net-next 09/13] bnxt_en: Don't set ETS on unused TCs.

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Message-Id: <1545003991-17488-10-git-send-email-michael.chan@broadcom.com>
Date:   Sun, 16 Dec 2018 18:46:27 -0500
From:   Michael Chan <michael.chan@...adcom.com>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org
Subject: [PATCH net-next 09/13] bnxt_en: Don't set ETS on unused TCs.

Currently, the code allows ETS bandwidth weight 0 to be set on unused TCs.
We should not set any DCB parameters on unused TCs at all.

Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c
index a85d2be..15c7041 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c
@@ -471,7 +471,10 @@ static int bnxt_ets_validate(struct bnxt *bp, struct ieee_ets *ets, u8 *tc)
 	if (total_ets_bw > 100)
 		return -EINVAL;

-	*tc = max_tc + 1;
+	if (max_tc >= bp->max_tc)
+		*tc = bp->max_tc;
+	else
+		*tc = max_tc + 1;
 	return 0;
 }

-- 
2.5.1