linux-kernel - [PATCH 5.4 44/92] ionic: account for vlan tag len in rx buffer len

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Message-Id: <20210111130041.268227610@linuxfoundation.org>
Date:   Mon, 11 Jan 2021 14:01:48 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Shannon Nelson <snelson@...sando.io>,
        Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH 5.4 44/92] ionic: account for vlan tag len in rx buffer len

From: Shannon Nelson <snelson@...sando.io>

[ Upstream commit 83469893204281ecf65d572bddf02de29a19787c ]

Let the FW know we have enough receive buffer space for the
vlan tag if it isn't stripped.

Fixes: 0f3154e6bcb3 ("ionic: Add Tx and Rx handling")
Signed-off-by: Shannon Nelson <snelson@...sando.io>
Link: https://lore.kernel.org/r/20201218215001.64696-1-snelson@pensando.io
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/pensando/ionic/ionic_txrx.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
@@ -257,7 +257,7 @@ void ionic_rx_fill(struct ionic_queue *q
 	unsigned int len;
 	unsigned int i;
 
-	len = netdev->mtu + ETH_HLEN;
+	len = netdev->mtu + ETH_HLEN + VLAN_HLEN;
 
 	for (i = ionic_q_space_avail(q); i; i--) {
 		skb = ionic_rx_skb_alloc(q, len, &dma_addr);