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Code Issues Releases Activity

Add MSI support for VT613x controllers.

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This commit is contained in:
Pyun YongHyeon 2009-12-14 20:49:50 +00:00
parent 643e9ee9fb
commit 5957cc2a24
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=200541
2 changed files with 25 additions and 5 deletions
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29
sys/dev/vge/if_vge.c
View File

@ -127,6 +127,10 @@ MODULE_DEPEND(vge, miibus, 1, 1, 1);
#define VGE_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP)
/* Tunables */
static int msi_disable = 0;
TUNABLE_INT("hw.vge.msi_disable", &msi_disable);
/*
* Various supported device vendors/types and their names.
*/
@ -954,7 +958,7 @@ vge_attach(device_t dev)
u_char eaddr[ETHER_ADDR_LEN];
struct vge_softc *sc;
struct ifnet *ifp;
int error = 0, cap, rid;
int error = 0, cap, msic, rid;
sc = device_get_softc(dev);
sc->vge_dev = dev;
@ -982,12 +986,24 @@ vge_attach(device_t dev)
sc->vge_flags |= VGE_FLAG_PCIE;
sc->vge_expcap = cap;
}
rid = 0;
msic = pci_msi_count(dev);
if (msi_disable == 0 && msic > 0) {
msic = 1;
if (pci_alloc_msi(dev, &msic) == 0) {
if (msic == 1) {
sc->vge_flags |= VGE_FLAG_MSI;
device_printf(dev, "Using %d MSI message\n",
msic);
rid = 1;
} else
pci_release_msi(dev);
}
}
/* Allocate interrupt */
rid = 0;
sc->vge_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
RF_SHAREABLE | RF_ACTIVE);
((sc->vge_flags & VGE_FLAG_MSI) ? 0 : RF_SHAREABLE) | RF_ACTIVE);
if (sc->vge_irq == NULL) {
device_printf(dev, "couldn't map interrupt\n");
error = ENXIO;
@ -1108,7 +1124,10 @@ vge_detach(device_t dev)
if (sc->vge_intrhand)
bus_teardown_intr(dev, sc->vge_irq, sc->vge_intrhand);
if (sc->vge_irq)
bus_release_resource(dev, SYS_RES_IRQ, 0, sc->vge_irq);
bus_release_resource(dev, SYS_RES_IRQ,
sc->vge_flags & VGE_FLAG_MSI ? 1 : 0, sc->vge_irq);
if (sc->vge_flags & VGE_FLAG_MSI)
pci_release_msi(dev);
if (sc->vge_res)
bus_release_resource(dev, SYS_RES_MEMORY,
PCIR_BAR(1), sc->vge_res);

1
sys/dev/vge/if_vgevar.h
View File

@ -144,6 +144,7 @@ struct vge_softc {
int vge_phyaddr;
int vge_flags;
#define VGE_FLAG_PCIE 0x0001
#define VGE_FLAG_MSI 0x0002
#define VGE_FLAG_LINK 0x8000
int vge_expcap;
int vge_camidx;