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ucc_geth: Add 16 bytes to max TX frame for VLANs

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Creating a VLAN interface on top of ucc_geth adds 4 bytes
to the frame and the HW controller is not prepared to
TX a frame bigger than 1518 bytes which is 4 bytes too
small for a full VLAN frame. Add 16 bytes which will handle
the a simple VLAN and leaves 12 bytes for future expansion.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Joakim Tjernlund 2012-04-29 22:36:55 +00:00 committed by David S. Miller
parent 5bbdc057c2
commit 70f8002d78
1 changed files with 3 additions and 3 deletions
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6
drivers/net/ethernet/freescale/ucc_geth.c
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@ -116,10 +116,10 @@ static struct ucc_geth_info ugeth_primary_info = {
.maxGroupAddrInHash = 4,
.maxIndAddrInHash = 4,
.prel = 7,
.maxFrameLength = 1518,
.maxFrameLength = 1518+16, /* Add extra bytes for VLANs etc. */
.minFrameLength = 64,
.maxD1Length = 1520,
.maxD2Length = 1520,
.maxD1Length = 1520+16, /* Add extra bytes for VLANs etc. */
.maxD2Length = 1520+16, /* Add extra bytes for VLANs etc. */
.vlantype = 0x8100,
.ecamptr = ((uint32_t) NULL),
.eventRegMask = UCCE_OTHER,