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sfc: Merged efx_page_offset() into efx_rx_buf_offset() 

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Ben Hutchings 2008-05-16 21:16:31 +01:00 committed by Jeff Garzik
parent 55668611d0
commit 184be0c21a
1 changed files with 3 additions and 7 deletions
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10
drivers/net/sfc/rx.c
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@ -86,16 +86,12 @@ static unsigned int rx_refill_limit = 95;
*/ */
#define EFX_RXD_HEAD_ROOM 2 #define EFX_RXD_HEAD_ROOM 2
static inline unsigned int efx_page_offset(void *p)
{
return (__force unsigned int)p & (PAGE_SIZE - 1);
}
static inline unsigned int efx_rx_buf_offset(struct efx_rx_buffer *buf) static inline unsigned int efx_rx_buf_offset(struct efx_rx_buffer *buf)
{ {
/* Offset is always within one page, so we don't need to consider /* Offset is always within one page, so we don't need to consider
* the page order. * the page order.
*/ */
return efx_page_offset(buf->data); return (__force unsigned long) buf->data & (PAGE_SIZE - 1);
} }
static inline unsigned int efx_rx_buf_size(struct efx_nic *efx) static inline unsigned int efx_rx_buf_size(struct efx_nic *efx)
{ {
@ -291,10 +287,10 @@ static inline int efx_init_rx_buffer_page(struct efx_rx_queue *rx_queue,
EFX_PAGE_IP_ALIGN); EFX_PAGE_IP_ALIGN);
} }
offset = efx_page_offset(rx_queue->buf_data);
rx_buf->len = bytes; rx_buf->len = bytes;
rx_buf->dma_addr = rx_queue->buf_dma_addr + offset;
rx_buf->data = rx_queue->buf_data; rx_buf->data = rx_queue->buf_data;
offset = efx_rx_buf_offset(rx_buf);
rx_buf->dma_addr = rx_queue->buf_dma_addr + offset;
/* Try to pack multiple buffers per page */ /* Try to pack multiple buffers per page */
if (efx->rx_buffer_order == 0) { if (efx->rx_buffer_order == 0) {