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Add suspend/resume support. Unlike many other NIC drivers,

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bfe_init_locked() wasn't sufficient to bring the chip back to life, it also
required a call to bfe_chip_reset() during resume.

Tested by:	Stepan Zastupov +redchrom at gmail+
MFC after:	1 week
This commit is contained in:
John Baldwin 2006-11-20 23:30:07 +00:00
parent 8cc7b0f93d
commit 6daee769f4
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=164456
1 changed files with 38 additions and 0 deletions
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38
sys/dev/bfe/if_bfe.c
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@ -87,6 +87,8 @@ static struct bfe_type bfe_devs[] = {
static int bfe_probe (device_t);
static int bfe_attach (device_t);
static int bfe_detach (device_t);
static int bfe_suspend (device_t);
static int bfe_resume (device_t);
static void bfe_release_resources (struct bfe_softc *);
static void bfe_intr (void *);
static void bfe_start (struct ifnet *);
@ -136,6 +138,8 @@ static device_method_t bfe_methods[] = {
DEVMETHOD(device_attach, bfe_attach),
DEVMETHOD(device_detach, bfe_detach),
DEVMETHOD(device_shutdown, bfe_shutdown),
DEVMETHOD(device_suspend, bfe_suspend),
DEVMETHOD(device_resume, bfe_resume),
/* bus interface */
DEVMETHOD(bus_print_child, bus_generic_print_child),
@ -479,6 +483,40 @@ bfe_shutdown(device_t dev)
return;
}
static int
bfe_suspend(device_t dev)
{
struct bfe_softc *sc;
sc = device_get_softc(dev);
BFE_LOCK(sc);
bfe_stop(sc);
BFE_UNLOCK(sc);
return (0);
}
static int
bfe_resume(device_t dev)
{
struct bfe_softc *sc;
struct ifnet *ifp;
sc = device_get_softc(dev);
ifp = sc->bfe_ifp;
BFE_LOCK(sc);
bfe_chip_reset(sc);
if (ifp->if_flags & IFF_UP) {
bfe_init_locked(sc);
if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
!IFQ_DRV_IS_EMPTY(&ifp->if_snd))
bfe_start_locked(ifp);
}
BFE_UNLOCK(sc);
return (0);
}
static int
bfe_miibus_readreg(device_t dev, int phy, int reg)
{