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| author | Thierry Reding <treding@nvidia.com> | 2014-12-09 22:25:25 -0700 |
|---|---|---|
| committer | Tom Warren <twarren@nvidia.com> | 2014-12-18 13:21:41 -0700 |
| commit | dad3ba0f0bb5ee2e87881c9f3a7ecfb8db384b2b (patch) | |
| tree | 421e2053f773121ad771298d85b3d7d37f8a6018 /drivers/net/pcnet.c | |
| parent | c94bbfdf516e0ebaf2cb08025174f224c0b391f0 (diff) | |
| download | u-boot-imx-dad3ba0f0bb5ee2e87881c9f3a7ecfb8db384b2b.zip u-boot-imx-dad3ba0f0bb5ee2e87881c9f3a7ecfb8db384b2b.tar.gz u-boot-imx-dad3ba0f0bb5ee2e87881c9f3a7ecfb8db384b2b.tar.bz2 | |
net: rtl8169: Properly align buffers
RX and TX descriptor rings should be aligned to 256 byte boundaries. Use
the DEFINE_ALIGN_BUFFER() macro to define the buffers so that they don't
have to be manually aligned later on. Also make sure that the buffers do
align to cache-line boundaries in case the cache-line is higher than the
256 byte alignment requirements of the NIC.
Also add a warning if the cache-line size is larger than the descriptor
size, because the driver may discard changes to descriptors made by the
hardware when requeuing RX buffers.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'drivers/net/pcnet.c')
0 files changed, 0 insertions, 0 deletions