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[undi] Include subsystem IDs in broken interrupt device check 

Allow the subsystem IDs to be used when checking for PXE stacks with
broken interrupt support.

Suggested-by: Levi Hsieh <Levi.Hsieh@dell.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
pull/72/merge
Michael Brown 2018-04-18 16:38:36 +01:00
parent 2eef77ecc0
commit d6f02c72c9
1 changed files with 27 additions and 6 deletions
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33
src/arch/x86/drivers/net/undinet.c
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@ -33,6 +33,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <ipxe/netdevice.h>
#include <ipxe/if_ether.h>
#include <ipxe/ethernet.h>
#include <ipxe/pci.h>
#include <ipxe/profile.h>
#include <undi.h>
#include <undinet.h>
@ -807,6 +808,10 @@ struct undinet_irq_broken {
uint16_t pci_vendor;
/** PCI device ID */
uint16_t pci_device;
/** PCI subsystem vendor ID */
uint16_t pci_subsys_vendor;
/** PCI subsystem ID */
uint16_t pci_subsys;
};
/**
@ -822,10 +827,10 @@ struct undinet_irq_broken {
*/
static const struct undinet_irq_broken undinet_irq_broken_list[] = {
/* HP XX70x laptops */
{ .pci_vendor = 0x8086, .pci_device = 0x1502 },
{ .pci_vendor = 0x8086, .pci_device = 0x1503 },
{ 0x8086, 0x1502, PCI_ANY_ID, PCI_ANY_ID },
{ 0x8086, 0x1503, PCI_ANY_ID, PCI_ANY_ID },
/* HP 745 G3 laptop */
{ .pci_vendor = 0x14e4, .pci_device = 0x1687 },
{ 0x14e4, 0x1687, PCI_ANY_ID, PCI_ANY_ID },
};
/**
@ -836,14 +841,30 @@ static const struct undinet_irq_broken undinet_irq_broken_list[] = {
*/
static int undinet_irq_is_broken ( struct device_description *desc ) {
const struct undinet_irq_broken *broken;
struct pci_device pci;
uint16_t subsys_vendor;
uint16_t subsys;
unsigned int i;
/* Ignore non-PCI devices */
if ( desc->bus_type != BUS_TYPE_PCI )
return 0;
/* Read subsystem IDs */
pci_init ( &pci, desc->location );
pci_read_config_word ( &pci, PCI_SUBSYSTEM_VENDOR_ID, &subsys_vendor );
pci_read_config_word ( &pci, PCI_SUBSYSTEM_ID, &subsys );
/* Check for a match against the broken device list */
for ( i = 0 ; i < ( sizeof ( undinet_irq_broken_list ) /
sizeof ( undinet_irq_broken_list[0] ) ) ; i++ ) {
broken = &undinet_irq_broken_list[i];
if ( ( desc->bus_type == BUS_TYPE_PCI ) &&
( desc->vendor == broken->pci_vendor ) &&
( desc->device == broken->pci_device ) ) {
if ( ( broken->pci_vendor == desc->vendor ) &&
( broken->pci_device == desc->device ) &&
( ( broken->pci_subsys_vendor == subsys_vendor ) ||
( broken->pci_subsys_vendor == PCI_ANY_ID ) ) &&
( ( broken->pci_subsys == subsys ) ||
( broken->pci_subsys == PCI_ANY_ID ) ) ) {
return 1;
}
}