diff options
author | yongari <yongari@FreeBSD.org> | 2011-05-07 00:06:02 +0000 |
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committer | yongari <yongari@FreeBSD.org> | 2011-05-07 00:06:02 +0000 |
commit | 091c72cf13ccb4e7622eded8e54e781bf5832119 (patch) | |
tree | bee610c4c57b33142974052f9528a5af60c5a87f | |
parent | 79e423bbd232b1cdb796f91d2f87d3ea4d24bfa8 (diff) | |
download | FreeBSD-src-091c72cf13ccb4e7622eded8e54e781bf5832119.zip FreeBSD-src-091c72cf13ccb4e7622eded8e54e781bf5832119.tar.gz |
Rename xl_stats_update() callout handler to xl_tick() and move MII
tick driving logic to xl_tick(). Now xl_tick() handles MII tick as
well as periodic updating of statistics.
This change removes a hack used in interrupt handler where it
wanted to update statistics without driving MII tick.
-rw-r--r-- | sys/dev/xl/if_xl.c | 55 | ||||
-rw-r--r-- | sys/dev/xl/if_xlreg.h | 3 |
2 files changed, 21 insertions, 37 deletions
diff --git a/sys/dev/xl/if_xl.c b/sys/dev/xl/if_xl.c index cc33caa..a63a314 100644 --- a/sys/dev/xl/if_xl.c +++ b/sys/dev/xl/if_xl.c @@ -225,8 +225,8 @@ static int xl_attach(device_t); static int xl_detach(device_t); static int xl_newbuf(struct xl_softc *, struct xl_chain_onefrag *); -static void xl_stats_update(void *); -static void xl_stats_update_locked(struct xl_softc *); +static void xl_tick(void *); +static void xl_stats_update(struct xl_softc *); static int xl_encap(struct xl_softc *, struct xl_chain *, struct mbuf **); static int xl_rxeof(struct xl_softc *); static void xl_rxeof_task(void *, int); @@ -1330,7 +1330,7 @@ xl_attach(device_t dev) goto fail; } - callout_init_mtx(&sc->xl_stat_callout, &sc->xl_mtx, 0); + callout_init_mtx(&sc->xl_tick_callout, &sc->xl_mtx, 0); TASK_INIT(&sc->xl_task, 0, xl_rxeof_task, sc); /* @@ -1695,7 +1695,7 @@ xl_detach(device_t dev) xl_stop(sc); XL_UNLOCK(sc); taskqueue_drain(taskqueue_swi, &sc->xl_task); - callout_drain(&sc->xl_stat_callout); + callout_drain(&sc->xl_tick_callout); ether_ifdetach(ifp); } if (sc->xl_miibus) @@ -2307,11 +2307,8 @@ xl_intr(void *arg) break; } - if (status & XL_STAT_STATSOFLOW) { - sc->xl_stats_no_timeout = 1; - xl_stats_update_locked(sc); - sc->xl_stats_no_timeout = 0; - } + if (status & XL_STAT_STATSOFLOW) + xl_stats_update(sc); } if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd) && @@ -2379,49 +2376,46 @@ xl_poll_locked(struct ifnet *ifp, enum poll_cmd cmd, int count) xl_init_locked(sc); } - if (status & XL_STAT_STATSOFLOW) { - sc->xl_stats_no_timeout = 1; + if (status & XL_STAT_STATSOFLOW) xl_stats_update_locked(sc); - sc->xl_stats_no_timeout = 0; - } } } return (rx_npkts); } #endif /* DEVICE_POLLING */ -/* - * XXX: This is an entry point for callout which needs to take the lock. - */ static void -xl_stats_update(void *xsc) +xl_tick(void *xsc) { struct xl_softc *sc = xsc; + struct mii_data *mii; XL_LOCK_ASSERT(sc); + if (sc->xl_miibus != NULL) { + mii = device_get_softc(sc->xl_miibus); + mii_tick(mii); + } + + xl_stats_update(sc); if (xl_watchdog(sc) == EJUSTRETURN) return; - xl_stats_update_locked(sc); + callout_reset(&sc->xl_tick_callout, hz, xl_tick, sc); } static void -xl_stats_update_locked(struct xl_softc *sc) +xl_stats_update(struct xl_softc *sc) { struct ifnet *ifp = sc->xl_ifp; struct xl_stats xl_stats; u_int8_t *p; int i; - struct mii_data *mii = NULL; XL_LOCK_ASSERT(sc); bzero((char *)&xl_stats, sizeof(struct xl_stats)); - if (sc->xl_miibus != NULL) - mii = device_get_softc(sc->xl_miibus); - p = (u_int8_t *)&xl_stats; /* Read all the stats registers. */ @@ -2443,14 +2437,7 @@ xl_stats_update_locked(struct xl_softc *sc) */ XL_SEL_WIN(4); CSR_READ_1(sc, XL_W4_BADSSD); - - if ((mii != NULL) && (!sc->xl_stats_no_timeout)) - mii_tick(mii); - XL_SEL_WIN(7); - - if (!sc->xl_stats_no_timeout) - callout_reset(&sc->xl_stat_callout, hz, xl_stats_update, sc); } /* @@ -2957,9 +2944,7 @@ xl_init_locked(struct xl_softc *sc) /* Clear out the stats counters. */ CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_STATS_DISABLE); - sc->xl_stats_no_timeout = 1; - xl_stats_update_locked(sc); - sc->xl_stats_no_timeout = 0; + xl_stats_update(sc); XL_SEL_WIN(4); CSR_WRITE_2(sc, XL_W4_NET_DIAG, XL_NETDIAG_UPPER_BYTES_ENABLE); CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_STATS_ENABLE); @@ -3000,7 +2985,7 @@ xl_init_locked(struct xl_softc *sc) ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; sc->xl_wdog_timer = 0; - callout_reset(&sc->xl_stat_callout, hz, xl_stats_update, sc); + callout_reset(&sc->xl_tick_callout, hz, xl_tick, sc); } /* @@ -3309,7 +3294,7 @@ xl_stop(struct xl_softc *sc) bus_space_write_4(sc->xl_ftag, sc->xl_fhandle, 4, 0x8000); /* Stop the stats updater. */ - callout_stop(&sc->xl_stat_callout); + callout_stop(&sc->xl_tick_callout); /* * Free data in the RX lists. diff --git a/sys/dev/xl/if_xlreg.h b/sys/dev/xl/if_xlreg.h index 5c1c60c..28b956b 100644 --- a/sys/dev/xl/if_xlreg.h +++ b/sys/dev/xl/if_xlreg.h @@ -614,13 +614,12 @@ struct xl_softc { u_int32_t xl_xcvr; u_int16_t xl_media; u_int16_t xl_caps; - u_int8_t xl_stats_no_timeout; u_int16_t xl_tx_thresh; int xl_pmcap; int xl_if_flags; struct xl_list_data xl_ldata; struct xl_chain_data xl_cdata; - struct callout xl_stat_callout; + struct callout xl_tick_callout; int xl_wdog_timer; int xl_flags; struct resource *xl_fres; |