diff options
| author | karl beldan <karl.beldan@gmail.com> | 2016-08-15 17:23:01 +0000 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2016-08-22 14:21:13 -0500 |
| commit | a51897b6c1e517ea2ce95da59784e84c5992dd00 (patch) | |
| tree | 95c7a2f607dab53ebb4f16bfc57598b9fd9aae32 /drivers/net | |
| parent | 6202b8f28c10977a9533ba4c49574b136a64ce82 (diff) | |
net: davinci_emac: Invalidate only the received portion of a buffer
ATM when receiving a packet the whole buffer is invalidated, this change
optimizes this behaviour.
Signed-off-by: Karl Beldan <karl.beldan+oss@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/davinci_emac.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c index 187137c8b4..6283487708 100644 --- a/drivers/net/davinci_emac.c +++ b/drivers/net/davinci_emac.c @@ -681,12 +681,12 @@ 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, tmp + EMAC_RXBUF_SIZE); - 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, tmp + ALIGN(len, PKTALIGN)); + net_process_received_packet(rx_curr_desc->buffer, len); + ret = len; } /* Ack received packet descriptor */ |