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[epic100] Fix wrong field used as rx packet length 

Datasheet pp. 41-42 defines 'rx packet length' as upper word of
'status' dword field of the receive descriptor table.

  http://www.smsc.com/media/Downloads_Archive/discontinued/83c171.pdf

Tested on SMC EtherPower II.

Signed-off-by: Alexey Smazhenko <darkover@corbina.com.ua>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Alexey 2012-05-24 22:41:40 +03:00 committed by Michael Brown
parent c3b4860ce3
commit 8f17955c03
1 changed files with 2 additions and 2 deletions
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4
src/drivers/net/epic100.c
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@ -376,7 +376,7 @@ epic100_poll(struct nic *nic, int retrieve)
{
int entry;
int retcode;
int status;
unsigned long status;
entry = cur_rx % RX_RING_SIZE;
if ((rx_ring[entry].status & cpu_to_le32(RRING_OWN)) == RRING_OWN)
@ -401,7 +401,7 @@ epic100_poll(struct nic *nic, int retrieve)
retcode = 0;
} else {
/* Omit the four octet CRC from the length. */
nic->packetlen = le32_to_cpu((rx_ring[entry].buflength))- 4;
nic->packetlen = (status >> 16) - 4;
memcpy(nic->packet, &rx_packet[entry * PKT_BUF_SZ], nic->packetlen);
retcode = 1;
}