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| author | Thomas Miletich | 2013-08-19 13:16:27 +0200 |
|---|---|---|
| committer | Michael Brown | 2013-08-20 15:37:05 +0200 |
| commit | e5f6471525917a088d038678505c18c0574accac (patch) | |
| tree | fec7f8903fbafe7ae4d4d212a49b3dcf79e21a3a /src | |
| parent | [3c90x] Stall upload engine before setting RX ring address (diff) | |
| download | ipxe-e5f6471525917a088d038678505c18c0574accac.tar.gz ipxe-e5f6471525917a088d038678505c18c0574accac.tar.xz ipxe-e5f6471525917a088d038678505c18c0574accac.zip | |
[3c90x] Don't round up transmit packet length
The 3c90x B and C revisions support rounding up the packet length to a
specific boundary. Disable this feature to avoid overlength packets.
This fixes the loopback test.
Signed-off-by: Thomas Miletich <thomas.miletich@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/drivers/net/3c90x.c | 7 | ||||
| -rw-r--r-- | src/drivers/net/3c90x.h | 1 |
2 files changed, 5 insertions, 3 deletions
diff --git a/src/drivers/net/3c90x.c b/src/drivers/net/3c90x.c index 1433e64a3..364492bbc 100644 --- a/src/drivers/net/3c90x.c +++ b/src/drivers/net/3c90x.c @@ -346,11 +346,12 @@ static int a3c90x_transmit(struct net_device *netdev, tx_cur_desc->DnNextPtr = 0; /* FrameStartHeader differs in 90x and >= 90xB - * It contains length in 90x and a round up boundary and packet ID for - * 90xB and 90xC. We can leave this to 0 for 90xB and 90xC. + * It contains the packet length in 90x and a round up boundary and + * packet ID for 90xB and 90xC. Disable packet length round-up on the + * later revisions. */ tx_cur_desc->FrameStartHeader = - fshTxIndicate | (inf_3c90x->isBrev ? 0x00 : len); + fshTxIndicate | (inf_3c90x->isBrev ? fshRndupDefeat : len); tx_cur_desc->DataAddr = virt_to_bus(iob->data); tx_cur_desc->DataLength = len | downLastFrag; diff --git a/src/drivers/net/3c90x.h b/src/drivers/net/3c90x.h index 53fc522bf..8bffa37f1 100644 --- a/src/drivers/net/3c90x.h +++ b/src/drivers/net/3c90x.h @@ -202,6 +202,7 @@ enum GlobalResetParams { enum FrameStartHeader { fshTxIndicate = 0x8000, fshDnComplete = 0x10000, + fshRndupDefeat = 0x10000000, }; enum UpDownDesc { |