Blame patches.suse/net-ethernet-octeon_mgmt-Account-for-second-possible.patch
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Jiri Slaby |
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From: Alexander Sverdlin <alexander.sverdlin@nokia.com>
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Jiri Slaby |
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Date: Fri, 8 Nov 2019 10:00:44 +0000
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Jiri Slaby |
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Subject: net: ethernet: octeon_mgmt: Account for second possible VLAN header
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Git-commit: e4dd5608033efe7b6030cde359bfdbaeb73bc22d
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Jiri Slaby |
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Patch-mainline: 5.4-rc7
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References: networking-stable-19_11_10
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Octeon's input ring-buffer entry has 14 bits-wide size field, so to account
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Jiri Slaby |
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for second possible VLAN header max_mtu must be further reduced.
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Jiri Slaby |
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Fixes: 109cc16526c6d ("ethernet/cavium: use core min/max MTU checking")
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Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
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Jiri Slaby |
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Jiri Slaby |
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Signed-off-by: Jiri Slaby <jslaby@suse.cz>
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Jiri Slaby |
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---
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drivers/net/ethernet/cavium/octeon/octeon_mgmt.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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Jiri Slaby |
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--- a/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c
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+++ b/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c
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@@ -1497,7 +1497,7 @@ static int octeon_mgmt_probe(struct plat
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netdev->ethtool_ops = &octeon_mgmt_ethtool_ops;
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netdev->min_mtu = 64 - OCTEON_MGMT_RX_HEADROOM;
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Jiri Slaby |
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- netdev->max_mtu = 16383 - OCTEON_MGMT_RX_HEADROOM;
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+ netdev->max_mtu = 16383 - OCTEON_MGMT_RX_HEADROOM - VLAN_HLEN;
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mac = of_get_mac_address(pdev->dev.of_node);
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