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[rtl8139] Perform only 8-bit ioport access on the ChipCmd register

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The ChipCmd register is only an 8-bit register.  The 16-bit access
used by iPXE was causing an issue when used with qemu emulated rtl8139
device which was improperly aligning IOs.

Signed-off-by: Julian Pidancet <julian.pidancet@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Julian Pidancet 2011-11-14 21:00:20 +00:00 committed by Michael Brown
parent caf98cf624
commit 91dd64ad25
1 changed files with 1 additions and 1 deletions
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src/drivers/net/rtl8139.c
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@ -434,7 +434,7 @@ static void rtl_poll ( struct net_device *netdev ) {
}
/* Handle received packets */
while ( ! ( inw ( rtl->ioaddr + ChipCmd ) & RxBufEmpty ) ) {
while ( ! ( inb ( rtl->ioaddr + ChipCmd ) & RxBufEmpty ) ) {
rx_status = * ( ( uint16_t * )
( rtl->rx.ring + rtl->rx.offset ) );
rx_len = * ( ( uint16_t * )