net: hns3: Fix for rx vlan id handle to support Rev 0x21 hardware

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In revision 0x20, we use vlan id != 0 to check whether a vlan tag
has been offloaded, so vlan id 0 is not supported.

In revision 0x21, rx buffer descriptor adds two bits to indicate
whether one or more vlan tags have been offloaded, so vlan id 0
is valid now.

This patch seperates the handle for vlan id 0, add vlan id 0 support
for revision 0x21.

Fixes: 5b5455a9ed ("net: hns3: Add STRP_TAGP field support for hardware revision 0x21")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Jian Shen 2018-10-05 18:03:29 +01:00 • committed by David S. Miller

parent 64d114f0a7

commit 701a6d6ac7

1 changed files with 13 additions and 17 deletions

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drivers/net/ethernet/hisilicon/hns3/hns3_enet.c

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