diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/arm/ks8695net.c | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/drivers/net/arm/ks8695net.c b/drivers/net/arm/ks8695net.c index a1d4188..e7810b7 100644 --- a/drivers/net/arm/ks8695net.c +++ b/drivers/net/arm/ks8695net.c @@ -449,11 +449,10 @@ ks8695_rx_irq(int irq, void *dev_id) } /** - * ks8695_rx - Receive packets called by NAPI poll method + * ks8695_rx - Receive packets called by NAPI poll method * @ksp: Private data for the KS8695 Ethernet - * @budget: The max packets would be receive + * @budget: Number of packets allowed to process */ - static int ks8695_rx(struct ks8695_priv *ksp, int budget) { struct net_device *ndev = ksp->ndev; @@ -461,7 +460,6 @@ static int ks8695_rx(struct ks8695_priv *ksp, int budget) int buff_n; u32 flags; int pktlen; - int last_rx_processed = -1; int received = 0; buff_n = ksp->next_rx_desc_read; @@ -471,6 +469,7 @@ static int ks8695_rx(struct ks8695_priv *ksp, int budget) cpu_to_le32(RDES_OWN)))) { rmb(); flags = le32_to_cpu(ksp->rx_ring[buff_n].status); + /* Found an SKB which we own, this means we * received a packet */ @@ -533,23 +532,18 @@ rx_failure: ksp->rx_ring[buff_n].status = cpu_to_le32(RDES_OWN); rx_finished: received++; - /* And note this as processed so we can start - * from here next time - */ - last_rx_processed = buff_n; buff_n = (buff_n + 1) & MAX_RX_DESC_MASK; - /*And note which RX descriptor we last did */ - if (likely(last_rx_processed != -1)) - ksp->next_rx_desc_read = - (last_rx_processed + 1) & - MAX_RX_DESC_MASK; } + + /* And note which RX descriptor we last did */ + ksp->next_rx_desc_read = buff_n; + /* And refill the buffers */ ks8695_refill_rxbuffers(ksp); - /* Kick the RX DMA engine, in case it became - * suspended */ + /* Kick the RX DMA engine, in case it became suspended */ ks8695_writereg(ksp, KS8695_DRSC, 0); + return received; } |