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sfc: commonise efx_sync_rx_buffer()

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The ef100 RX path will also need to DMA-sync RX buffers.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Edward Cree
2020-06-30 13:11:52 +01:00
committed by David S. Miller
parent f7e55550a3
commit 80a0074e6a
2 changed files with 9 additions and 8 deletions
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8
drivers/net/ethernet/sfc/rx.c
View File

@@ -40,14 +40,6 @@
#define EFX_RX_MAX_FRAGS DIV_ROUND_UP(EFX_MAX_FRAME_LEN(EFX_MAX_MTU), \ #define EFX_RX_MAX_FRAGS DIV_ROUND_UP(EFX_MAX_FRAME_LEN(EFX_MAX_MTU), \
EFX_RX_USR_BUF_SIZE) EFX_RX_USR_BUF_SIZE)
static inline void efx_sync_rx_buffer(struct efx_nic *efx,
struct efx_rx_buffer *rx_buf,
unsigned int len)
{
dma_sync_single_for_cpu(&efx->pci_dev->dev, rx_buf->dma_addr, len,
DMA_FROM_DEVICE);
}
static void efx_rx_packet__check_len(struct efx_rx_queue *rx_queue, static void efx_rx_packet__check_len(struct efx_rx_queue *rx_queue,
struct efx_rx_buffer *rx_buf, struct efx_rx_buffer *rx_buf,
int len) int len)

9
drivers/net/ethernet/sfc/rx_common.h
View File

@@ -57,6 +57,15 @@ void efx_init_rx_buffer(struct efx_rx_queue *rx_queue,
unsigned int page_offset, unsigned int page_offset,
u16 flags); u16 flags);
void efx_unmap_rx_buffer(struct efx_nic *efx, struct efx_rx_buffer *rx_buf); void efx_unmap_rx_buffer(struct efx_nic *efx, struct efx_rx_buffer *rx_buf);
static inline void efx_sync_rx_buffer(struct efx_nic *efx,
struct efx_rx_buffer *rx_buf,
unsigned int len)
{
dma_sync_single_for_cpu(&efx->pci_dev->dev, rx_buf->dma_addr, len,
DMA_FROM_DEVICE);
}
void efx_free_rx_buffers(struct efx_rx_queue *rx_queue, void efx_free_rx_buffers(struct efx_rx_queue *rx_queue,
struct efx_rx_buffer *rx_buf, struct efx_rx_buffer *rx_buf,
unsigned int num_bufs); unsigned int num_bufs);