diff options
| author |   Andrew Rybchenko <Andrew.Rybchenko@oktetlabs.ru> | 2013-11-16 11:02:27 +0400 |
|---|---|---|
| committer |   Ben Hutchings <bhutchings@solarflare.com> | 2013-12-06 22:27:52 +0000 |
| commit | 2ec030144f648a6dd208f95f55ece212f1b72771 (patch) | |
| tree | 8652b022a834b23589069b53881f089765a34ae6 /drivers/net/ethernet/sfc/net_driver.h | |
| parent | sfc: Maintain current frequency adjustment when applying a time offset (diff) | |
| download | linux-dev-2ec030144f648a6dd208f95f55ece212f1b72771.tar.xz linux-dev-2ec030144f648a6dd208f95f55ece212f1b72771.zip | |
sfc: RX buffer allocation takes prefix size into account in IP header alignment
rx_prefix_size is 4-bytes aligned on Falcon/Siena (16 bytes), but it is equal
to 14 on EF10. So, it should be taken into account if arch requires IP header
to be 4-bytes aligned (via NET_IP_ALIGN).
Fixes: 8127d661e77f ('sfc: Add support for Solarflare SFC9100 family')
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Diffstat (limited to 'drivers/net/ethernet/sfc/net_driver.h')
| -rw-r--r-- | drivers/net/ethernet/sfc/net_driver.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index b14a717ac3e8..542a0d252ae0 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -683,6 +683,8 @@ struct vfdi_status; * @n_channels: Number of channels in use * @n_rx_channels: Number of channels used for RX (= number of RX queues) * @n_tx_channels: Number of channels used for TX + * @rx_ip_align: RX DMA address offset to have IP header aligned in + * in accordance with NET_IP_ALIGN * @rx_dma_len: Current maximum RX DMA length * @rx_buffer_order: Order (log2) of number of pages for each RX buffer * @rx_buffer_truesize: Amortised allocation size of an RX buffer, @@ -816,6 +818,7 @@ struct efx_nic { unsigned rss_spread; unsigned tx_channel_offset; unsigned n_tx_channels; + unsigned int rx_ip_align; unsigned int rx_dma_len; unsigned int rx_buffer_order; unsigned int rx_buffer_truesize; |