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| author | Stephen Warren <swarren@nvidia.com> | 2014-02-27 13:27:02 -0700 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-03-07 10:59:06 -0500 |
| commit | 9a04a858ebb711767f368c5a752928ffc36ed4de (patch) | |
| tree | a43ced06f4c3e93104a7701c974b1a5c0ae69bec /test/command_ut.c | |
| parent | e4b87e5b1d026bd010e2ba3abbf89561e8320287 (diff) | |
| download | blackbird-obmc-uboot-9a04a858ebb711767f368c5a752928ffc36ed4de.tar.gz blackbird-obmc-uboot-9a04a858ebb711767f368c5a752928ffc36ed4de.zip | |
net: asix: don't pad odd-length TX packets
For Ethernet/USB RX packets, the ASIX HW pads odd-sized packets so that
they have an even size. Currently, asix_recv() does remove this padding,
and asic_send() adds equivalent padding in the TX path. However, the HW
does not appear to need this packing for TX packets in practical testing
with "ASIX Elec. Corp. AX88x72A 000001" Vendor: 0x0b95 Product 0x7720
Version 0.1. The Linux kernel does no such padding for the TX path.
Remove the padding from the TX path:
* For consistency with the Linux kernel.
* NVIDIA has a Tegra simulator which validates that the length of USB
packets sent to an ASIX device matches the packet length value inside
the packet data. Having U-Boot and the kernel do the same thing when
creating the TX packets simplifies the simulator's validation.
Cc: Lucas Stach <dev@lynxeye.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Marek Vasut <marex@denx.de>
Tested-by: Gerhard Sittig <gsi@denx.de>
Diffstat (limited to 'test/command_ut.c')
0 files changed, 0 insertions, 0 deletions
