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Implement WOL capability.

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- Turn on WOL bits in suspend/shutdown method.
 - WOL is disabled in resume routine as WOL can interfere normal
   Rx operation.
 - Move stge_reset() to stge_init_locked() as resetting hardware
   clears configured Rx information which in turn results in
   non-working Rx module after suspend/shutdown operation.
This commit is contained in:
Pyun YongHyeon 2008-01-14 07:16:48 +00:00
parent 6180b9de75
commit 346de09f2a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=175315
2 changed files with 54 additions and 11 deletions
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57
sys/dev/stge/if_stge.c
View File

@ -187,6 +187,7 @@ static int stge_init_rx_ring(struct stge_softc *);
static void stge_poll(struct ifnet *, enum poll_cmd, int);
#endif
static void stge_setwol(struct stge_softc *);
static int sysctl_int_range(SYSCTL_HANDLER_ARGS, int, int);
static int sysctl_hw_stge_rxint_nframe(SYSCTL_HANDLER_ARGS);
static int sysctl_hw_stge_rxint_dmawait(SYSCTL_HANDLER_ARGS);
@ -736,6 +737,7 @@ stge_attach(device_t dev)
ifp->if_hwassist = 0;
ifp->if_capabilities = 0;
}
ifp->if_capabilities |= IFCAP_WOL_MAGIC;
ifp->if_capenable = ifp->if_capabilities;
/*
@ -1121,15 +1123,33 @@ stge_dma_free(struct stge_softc *sc)
static int
stge_shutdown(device_t dev)
{
struct stge_softc *sc;
sc = device_get_softc(dev);
return (stge_suspend(dev));
}
STGE_LOCK(sc);
stge_stop(sc);
STGE_UNLOCK(sc);
static void
stge_setwol(struct stge_softc *sc)
{
struct ifnet *ifp;
uint8_t v;
return (0);
STGE_LOCK_ASSERT(sc);
ifp = sc->sc_ifp;
v = CSR_READ_1(sc, STGE_WakeEvent);
/* Disable all WOL bits. */
v &= ~(WE_WakePktEnable | WE_MagicPktEnable | WE_LinkEventEnable |
WE_WakeOnLanEnable);
if ((ifp->if_capenable & IFCAP_WOL_MAGIC) != 0)
v |= WE_MagicPktEnable | WE_WakeOnLanEnable;
CSR_WRITE_1(sc, STGE_WakeEvent, v);
/* Reset Tx and prevent transmission. */
CSR_WRITE_4(sc, STGE_AsicCtrl,
CSR_READ_4(sc, STGE_AsicCtrl) | AC_TxReset);
/*
* TC9021 automatically reset link speed to 100Mbps when it's put
* into sleep so there is no need to try to resetting link speed.
*/
}
static int
@ -1142,6 +1162,7 @@ stge_suspend(device_t dev)
STGE_LOCK(sc);
stge_stop(sc);
sc->sc_suspended = 1;
stge_setwol(sc);
STGE_UNLOCK(sc);
return (0);
@ -1152,10 +1173,19 @@ stge_resume(device_t dev)
{
struct stge_softc *sc;
struct ifnet *ifp;
uint8_t v;
sc = device_get_softc(dev);
STGE_LOCK(sc);
/*
* Clear WOL bits, so special frames wouldn't interfere
* normal Rx operation anymore.
*/
v = CSR_READ_1(sc, STGE_WakeEvent);
v &= ~(WE_WakePktEnable | WE_MagicPktEnable | WE_LinkEventEnable |
WE_WakeOnLanEnable);
CSR_WRITE_1(sc, STGE_WakeEvent, v);
ifp = sc->sc_ifp;
if (ifp->if_flags & IFF_UP)
stge_init_locked(sc);
@ -1450,6 +1480,11 @@ stge_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
else
ifp->if_hwassist = 0;
}
if ((mask & IFCAP_WOL) != 0 &&
(ifp->if_capabilities & IFCAP_WOL) != 0) {
if ((mask & IFCAP_WOL_MAGIC) != 0)
ifp->if_capenable ^= IFCAP_WOL_MAGIC;
}
if ((mask & IFCAP_VLAN_HWTAGGING) != 0) {
ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) {
@ -2096,6 +2131,11 @@ stge_init_locked(struct stge_softc *sc)
*/
stge_stop(sc);
/*
* Reset the chip to a known state.
*/
stge_reset(sc, STGE_RESET_FULL);
/* Init descriptors. */
error = stge_init_rx_ring(sc);
if (error != 0) {
@ -2308,11 +2348,6 @@ stge_stop(struct stge_softc *sc)
callout_stop(&sc->sc_tick_ch);
sc->sc_watchdog_timer = 0;
/*
* Reset the chip to a known state.
*/
stge_reset(sc, STGE_RESET_FULL);
/*
* Disable interrupts.
*/

8
sys/dev/stge/if_stgereg.h
View File

@ -314,6 +314,14 @@ struct stge_rfd {
#define STGE_ExpRomData 0x50 /* 8-bit */
#define STGE_WakeEvent 0x51 /* 8-bit */
#define WE_WakePktEnable (1U << 0)
#define WE_MagicPktEnable (1U << 1)
#define WE_LinkEventEnable (1U << 2)
#define WE_WakePolarity (1U << 3)
#define WE_WakePktEvent (1U << 4)
#define WE_MagicPktEvent (1U << 5)
#define WE_LinkEvent (1U << 6)
#define WE_WakeOnLanEnable (1U << 7)
#define STGE_Countdown 0x54
#define CD_Count(x) ((x) & 0xffff)