diff options
Diffstat (limited to 'drivers/net/ethernet/freescale/gianfar.h')
| -rw-r--r-- | drivers/net/ethernet/freescale/gianfar.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/ethernet/freescale/gianfar.h b/drivers/net/ethernet/freescale/gianfar.h index 44021243c187..8a5f4de9df1c 100644 --- a/drivers/net/ethernet/freescale/gianfar.h +++ b/drivers/net/ethernet/freescale/gianfar.h @@ -1310,13 +1310,18 @@ static inline int gfar_rxbd_unused(struct gfar_priv_rx_q *rxq) return rxq->rx_ring_size + rxq->next_to_clean - rxq->next_to_use - 1; } -static inline struct rxbd8 *gfar_rxbd_lastfree(struct gfar_priv_rx_q *rxq) +static inline u32 gfar_rxbd_dma_lastfree(struct gfar_priv_rx_q *rxq) { + struct rxbd8 *bdp; + u32 bdp_dma; int i; i = rxq->next_to_use ? rxq->next_to_use - 1 : rxq->rx_ring_size - 1; + bdp = &rxq->rx_bd_base[i]; + bdp_dma = lower_32_bits(rxq->rx_bd_dma_base); + bdp_dma += (uintptr_t)bdp - (uintptr_t)rxq->rx_bd_base; - return &rxq->rx_bd_base[i]; + return bdp_dma; } irqreturn_t gfar_receive(int irq, void *dev_id); |