ATM when receiving a packet the whole buffer is invalidated, this change
optimizes this behaviour.
Signed-off-by: Karl Beldan <karl.beldan+...@gmail.com>
---
drivers/net/davinci_emac.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index 55461b0..e26e727 100644
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -677,13 +677,13 @@ static int davinci_eth_rcv_packet (struct eth_device *dev)
printf ("WARN: emac_rcv_pkt: Error in packet\n");
} else {
unsigned long tmp = (unsigned long)rx_curr_desc->buffer;
+ unsigned short len =
+ rx_curr_desc->buff_off_len & 0xffff;
- invalidate_dcache_range(tmp, round_up(tmp +
EMAC_RXBUF_SIZE,
-
ARCH_DMA_MINALIGN));
- net_process_received_packet(
- rx_curr_desc->buffer,
- rx_curr_desc->buff_off_len & 0xffff);
- ret = rx_curr_desc->buff_off_len & 0xffff;
+ invalidate_dcache_range(tmp, round_up(tmp + len,
+ ARCH_DMA_MINALIGN));
+ net_process_received_packet(rx_curr_desc->buffer, len);
+ ret = len;
}
/* Ack received packet descriptor */
--
2.9.2
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