diff options
| author | Jon Cooper <jcooper@solarflare.com> | 2013-03-08 14:18:28 +0400 |
|---|---|---|
| committer | Ben Hutchings <bhutchings@solarflare.com> | 2013-08-29 21:12:12 +0400 |
| commit | e8c68c0a09279107b5b239ca6fa7c5839717b7e2 (patch) | |
| tree | 27de28a6c05415007eb9d4f7c89aa4667aecf2dc /drivers/net/ethernet/sfc/rx.c | |
| parent | 15acb1cea5d9298eac511b80380183be624fa31c (diff) | |
| download | linux-e8c68c0a09279107b5b239ca6fa7c5839717b7e2.tar.xz | |
sfc: Prepare for RX scatter on EF10
RX DMA scatter is always enabled on EF10. Adjust the common RX
completion handling to allow for this.
RX completion events on EF10 include the length used from a single
descriptor, not the cumulative length used. Add a field to struct
efx_rx_queue to hold the cumulative length.
[bwh: Also fix a related comment]
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Diffstat (limited to 'drivers/net/ethernet/sfc/rx.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/rx.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c index 81eab21effe9..8c13dd8fa4dc 100644 --- a/drivers/net/ethernet/sfc/rx.c +++ b/drivers/net/ethernet/sfc/rx.c @@ -529,8 +529,8 @@ void efx_rx_packet(struct efx_rx_queue *rx_queue, unsigned int index, if (!(flags & EFX_RX_PKT_PREFIX_LEN)) efx_rx_packet__check_len(rx_queue, rx_buf, len); } else if (unlikely(n_frags > EFX_RX_MAX_FRAGS) || - unlikely(len <= (n_frags - 1) * EFX_RX_USR_BUF_SIZE) || - unlikely(len > n_frags * EFX_RX_USR_BUF_SIZE) || + unlikely(len <= (n_frags - 1) * efx->rx_dma_len) || + unlikely(len > n_frags * efx->rx_dma_len) || unlikely(!efx->rx_scatter)) { /* If this isn't an explicit discard request, either * the hardware or the driver is broken. @@ -581,9 +581,9 @@ void efx_rx_packet(struct efx_rx_queue *rx_queue, unsigned int index, rx_buf = efx_rx_buf_next(rx_queue, rx_buf); if (--tail_frags == 0) break; - efx_sync_rx_buffer(efx, rx_buf, EFX_RX_USR_BUF_SIZE); + efx_sync_rx_buffer(efx, rx_buf, efx->rx_dma_len); } - rx_buf->len = len - (n_frags - 1) * EFX_RX_USR_BUF_SIZE; + rx_buf->len = len - (n_frags - 1) * efx->rx_dma_len; efx_sync_rx_buffer(efx, rx_buf, rx_buf->len); } |