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| author | mav <mav@FreeBSD.org> | 2008-10-24 21:21:43 +0000 |
|---|---|---|
| committer | mav <mav@FreeBSD.org> | 2008-10-24 21:21:43 +0000 |
| commit | 752759a368307ea24ec541476173c0d4f56f38b6 (patch) | |
| tree | e8f79061ba54a413abb4a9b63a7ef64061a484fd /sys/dev/iwn | |
| parent | 6caf1de44153d02ab3f91c5b21a73718c50f54b7 (diff) | |
| download | FreeBSD-src-752759a368307ea24ec541476173c0d4f56f38b6.zip FreeBSD-src-752759a368307ea24ec541476173c0d4f56f38b6.tar.gz | |
Add MSI support.
Tested on: Acer TravelMate 6292 with 0x4229 chip.
Reviewed by: sam@
Diffstat (limited to 'sys/dev/iwn')
| -rw-r--r-- | sys/dev/iwn/if_iwn.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/dev/iwn/if_iwn.c b/sys/dev/iwn/if_iwn.c index 332c2ce..8421944 100644 --- a/sys/dev/iwn/if_iwn.c +++ b/sys/dev/iwn/if_iwn.c @@ -253,7 +253,7 @@ iwn_attach(device_t dev) struct iwn_softc *sc = (struct iwn_softc *)device_get_softc(dev); struct ieee80211com *ic; struct ifnet *ifp; - int i, error; + int i, error, result; sc->sc_dev = dev; @@ -282,6 +282,9 @@ iwn_attach(device_t dev) sc->sc_st = rman_get_bustag(sc->mem); sc->sc_sh = rman_get_bushandle(sc->mem); sc->irq_rid = 0; + if ((result = pci_msi_count(dev)) == 1 && + pci_alloc_msi(dev, &result) == 0) + sc->irq_rid = 1; sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, RF_ACTIVE | RF_SHAREABLE); if (sc->irq == NULL) { @@ -487,6 +490,8 @@ iwn_cleanup(device_t dev) if (sc->irq != NULL) { bus_teardown_intr(dev, sc->irq, sc->sc_ih); bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); + if (sc->irq_rid == 1) + pci_release_msi(dev); } if (sc->mem != NULL) bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); |
