linux-kernel - [PATCH 3.16 055/148] bnx2x: Enable Multi-Cos feature.

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Message-ID: <lsq.1581185940.760630824@decadent.org.uk>
Date:   Sat, 08 Feb 2020 18:19:54 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, Denis Kirjanov <kda@...ux-powerpc.org>,
        "David S. Miller" <davem@...emloft.net>,
        "Ariel Elior" <aelior@...vell.com>,
        "Sudarsana Reddy Kalluru" <skalluru@...vell.com>
Subject: [PATCH 3.16 055/148] bnx2x: Enable Multi-Cos feature.

3.16.82-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Sudarsana Reddy Kalluru <skalluru@...vell.com>

commit 069e47823fff2c634b2d46a328b5096fdc8c2a0c upstream.

FW version 7.13.15 addresses the issue in Multi-cos implementation.
This patch re-enables the Multi-Cos support in the driver.

Fixes: d1f0b5dce8fd ("bnx2x: Disable multi-cos feature.")
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@...vell.com>
Signed-off-by: Ariel Elior <aelior@...vell.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
[bwh: Backported to 3.16: Keep calling fallback()]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -1914,7 +1914,8 @@ u16 bnx2x_select_queue(struct net_device
 	}
 
 	/* select a non-FCoE queue */
-	return fallback(dev, skb) % (BNX2X_NUM_ETH_QUEUES(bp));
+	return fallback(dev, skb) %
+			(BNX2X_NUM_ETH_QUEUES(bp) * bp->max_cos);
 }
 
 void bnx2x_set_num_queues(struct bnx2x *bp)