diff options
Diffstat (limited to 'sys/dev/pci/pci.c')
| -rw-r--r-- | sys/dev/pci/pci.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/sys/dev/pci/pci.c b/sys/dev/pci/pci.c index 1bb3172..2666d7f 100644 --- a/sys/dev/pci/pci.c +++ b/sys/dev/pci/pci.c @@ -207,6 +207,7 @@ struct pci_quirk { #define PCI_QUIRK_ENABLE_MSI_VM 3 /* Older chipset in VM where MSI works */ #define PCI_QUIRK_UNMAP_REG 4 /* Ignore PCI map register */ #define PCI_QUIRK_DISABLE_MSIX 5 /* MSI-X doesn't work */ +#define PCI_QUIRK_MSI_INTX_BUG 6 /* PCIM_CMD_INTxDIS disables MSI */ int arg1; int arg2; }; @@ -266,6 +267,15 @@ static const struct pci_quirk pci_quirks[] = { */ { 0x43851002, PCI_QUIRK_UNMAP_REG, 0x14, 0 }, + /* + * Atheros AR8161/AR8162/E2200 ethernet controller has a bug that + * MSI interrupt does not assert if PCIM_CMD_INTxDIS bit of the + * command register is set. + */ + { 0x10911969, PCI_QUIRK_MSI_INTX_BUG, 0, 0 }, + { 0xE0911969, PCI_QUIRK_MSI_INTX_BUG, 0, 0 }, + { 0x10901969, PCI_QUIRK_MSI_INTX_BUG, 0, 0 }, + { 0 } }; @@ -3856,8 +3866,14 @@ pci_setup_intr(device_t dev, device_t child, struct resource *irq, int flags, mte->mte_handlers++; } - /* Make sure that INTx is disabled if we are using MSI/MSIX */ - pci_set_command_bit(dev, child, PCIM_CMD_INTxDIS); + if (!pci_has_quirk(pci_get_devid(dev), + PCI_QUIRK_MSI_INTX_BUG)) { + /* + * Make sure that INTx is disabled if we are + * using MSI/MSIX + */ + pci_set_command_bit(dev, child, PCIM_CMD_INTxDIS); + } bad: if (error) { (void)bus_generic_teardown_intr(dev, child, irq, @@ -3949,6 +3965,7 @@ pci_print_child(device_t dev, device_t child) retval += printf(" at device %d.%d", pci_get_slot(child), pci_get_function(child)); + retval += bus_print_child_domain(dev, child); retval += bus_print_child_footer(dev, child); return (retval); |
