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xcat-dep/gpxe/gpxe-0.9.7-etherbootworkaround.patch
jbjohnso a60d90375d -Add several patches from gPXE git tree (all of this checkin is from gPXE git tree)
-Add workaround for use of Etherboot UNDI stack from git tree
-Add workaround for UNDI drivers that do not call the undi open call before attempting to use defive from git tree
-Change ProxyDHCP broadcast to go to port 67 (from git tree)
-Enable use of DHCP options when BOOTP fields are not present
-Report UNDI device to driver as a more standard interface type
-Workaround malformed OACK packets sent by certain PXE servers
-Avoid a spurious IRQ
-Add fix for e1000 driver
-Have the UNDI stack report UNDI capabilities
-Fix some places where interrupt handlers did not use iret to return
2009-08-22 02:03:07 +00:00

127 lines
3.6 KiB
Diff

diff -urN gpxe-0.9.7/src/arch/i386/prefix/pxeprefix.S gpxe-0.9.7-etherbootworkaround/src/arch/i386/prefix/pxeprefix.S
--- gpxe-0.9.7/src/arch/i386/prefix/pxeprefix.S 2009-03-01 21:23:42.000000000 -0500
+++ gpxe-0.9.7-etherbootworkaround/src/arch/i386/prefix/pxeprefix.S 2009-08-21 20:36:55.000000000 -0400
@@ -1,8 +1,11 @@
#define PXENV_UNDI_SHUTDOWN 0x0005
#define PXENV_UNDI_GET_NIC_TYPE 0x0012
+#define PXENV_UNDI_GET_IFACE_INFO 0x0013
#define PXENV_STOP_UNDI 0x0015
#define PXENV_UNLOAD_STACK 0x0070
+#define PXE_HACK_EB54 0x0001
+
.text
.arch i386
.org 0
@@ -11,6 +14,8 @@
#include <undi.h>
#define STACK_MAGIC ( 'L' + ( 'R' << 8 ) + ( 'E' << 16 ) + ( 'T' << 24 ) )
+#define EB_MAGIC_1 ( 'E' + ( 't' << 8 ) + ( 'h' << 16 ) + ( 'e' << 24 ) )
+#define EB_MAGIC_2 ( 'r' + ( 'b' << 8 ) + ( 'o' << 16 ) + ( 'o' << 24 ) )
/*****************************************************************************
* Entry point: set operating context, print welcome message
@@ -309,8 +314,6 @@
movw $10f, %si
call print_message
call print_pci_busdevfn
- movb $0x0a, %al
- call print_character
jmp 99f
.section ".prefix.data", "aw", @progbits
10: .asciz " UNDI device is PCI "
@@ -321,12 +324,47 @@
movw $10f, %si
call print_message
.section ".prefix.data", "aw", @progbits
-10: .asciz " Unable to determine UNDI physical device\n"
+10: .asciz " Unable to determine UNDI physical device"
.previous
99:
/*****************************************************************************
+ * Determine interface type
+ *****************************************************************************
+ */
+get_iface_type:
+ /* Issue PXENV_UNDI_GET_IFACE_INFO */
+ movw $PXENV_UNDI_GET_IFACE_INFO, %bx
+ call pxe_call
+ jnc 1f
+ call print_pxe_error
+ jmp 99f
+1: /* Print interface type */
+ movw $10f, %si
+ call print_message
+ leaw ( pxe_parameter_structure + 0x02 ), %si
+ call print_message
+ .section ".prefix.data", "aw", @progbits
+10: .asciz ", type "
+ .previous
+ /* Check for "Etherboot" interface type */
+ cmpl $EB_MAGIC_1, ( pxe_parameter_structure + 0x02 )
+ jne 99f
+ cmpl $EB_MAGIC_2, ( pxe_parameter_structure + 0x06 )
+ jne 99f
+ movw $10f, %si
+ call print_message
+ .section ".prefix.data", "aw", @progbits
+10: .asciz " (workaround enabled)"
+ .previous
+ /* Flag Etherboot workarounds as required */
+ orw $PXE_HACK_EB54, pxe_hacks
+
+99: movb $0x0a, %al
+ call print_character
+
+/*****************************************************************************
* Leave NIC in a safe state
*****************************************************************************
*/
@@ -339,6 +377,14 @@
call print_pxe_error
1:
unload_base_code:
+ /* Etherboot treats PXENV_UNLOAD_STACK as PXENV_STOP_UNDI, so
+ * we must not issue this call if the underlying stack is
+ * Etherboot and we were not intending to issue a PXENV_STOP_UNDI.
+ */
+#ifdef PXELOADER_KEEP_UNDI
+ testw $PXE_HACK_EB54, pxe_hacks
+ jnz 99f
+#endif /* PXELOADER_KEEP_UNDI */
/* Issue PXENV_UNLOAD_STACK */
movw $PXENV_UNLOAD_STACK, %bx
call pxe_call
@@ -551,7 +597,9 @@
testw %ax, %ax
jz 1f
stc
-1: /* Restore registers and return */
+1: /* Clear direction flag, for the sake of sanity */
+ cld
+ /* Restore registers and return */
popw %es
popw %di
ret
@@ -595,7 +643,7 @@
pxe_esp: .long 0
pxe_ss: .word 0
-pxe_parameter_structure: .fill 20
+pxe_parameter_structure: .fill 64
undi_code_segoff:
undi_code_size: .word 0
@@ -605,6 +653,8 @@
undi_data_size: .word 0
undi_data_segment: .word 0
+pxe_hacks: .word 0
+
/* The following fields are part of a struct undi_device */
undi_device: