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Use a common base-memory packet buffer for DHCP construction (as used

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by PXE and NBI) and UNDI packets (as used by undinet and UNDI).
This commit is contained in:
Michael Brown
2007-07-02 18:33:41 +01:00
parent 5f17089b14
commit e42eba4af4
6 changed files with 31 additions and 36 deletions
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16
src/arch/i386/drivers/net/undinet.c
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@@ -22,6 +22,7 @@
#include <pic8259.h>
#include <biosint.h>
#include <pnpbios.h>
#include <basemem_packet.h>
#include <gpxe/iobuf.h>
#include <gpxe/netdevice.h>
#include <gpxe/if_ether.h>
@@ -314,13 +315,6 @@ static int undinet_isr_triggered ( void ) {
*****************************************************************************
*/
/** Maximum length of a packet transmitted via the UNDI API */
#define UNDI_IOB_LEN 1514
/** UNDI I/O buffer */
static char __data16_array ( undinet_iob, [UNDI_IOB_LEN] );
#define undinet_iob __use_data16 ( undinet_iob )
/** UNDI transmit buffer descriptor */
static struct s_PXENV_UNDI_TBD __data16 ( undinet_tbd );
#define undinet_tbd __use_data16 ( undinet_tbd )
@@ -340,9 +334,9 @@ static int undinet_transmit ( struct net_device *netdev,
int rc;
/* Copy packet to UNDI I/O buffer */
if ( len > sizeof ( undinet_iob ) )
len = sizeof ( undinet_iob );
memcpy ( &undinet_iob, iobuf->data, len );
if ( len > sizeof ( basemem_packet ) )
len = sizeof ( basemem_packet );
memcpy ( &basemem_packet, iobuf->data, len );
/* Create PXENV_UNDI_TRANSMIT data structure */
memset ( &undi_transmit, 0, sizeof ( undi_transmit ) );
@@ -357,7 +351,7 @@ static int undinet_transmit ( struct net_device *netdev,
undinet_tbd.ImmedLength = len;
undinet_tbd.Xmit.segment = rm_ds;
undinet_tbd.Xmit.offset
= ( ( unsigned ) & __from_data16 ( undinet_iob ) );
= ( ( unsigned ) & __from_data16 ( basemem_packet ) );
/* Issue PXE API call */
if ( ( rc = undinet_call ( undinic, PXENV_UNDI_TRANSMIT,