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Fixes for the following issues:

Browse Source 
1. Fix taskqueues drain/free to fix panic seen when interface is being
   bought down and in parallel asynchronous link events happening.

2. Fix bxe_ifmedia_status()

Submitted by:Vaishali.Kulkarni@cavium.com and Anand.Khoje@cavium.com
MFC after:5 days
This commit is contained in:
David C Somayajulu 2018-07-17 23:56:13 +00:00
parent 71cb2dfcbc
commit 38b42191fb
1 changed files with 30 additions and 14 deletions
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40
sys/dev/bxe/bxe.c
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@ -4396,6 +4396,8 @@ bxe_nic_unload(struct bxe_softc *sc,
BLOGD(sc, DBG_LOAD, "Ended NIC unload\n");
bxe_link_report(sc);
return (0);
}
@ -4441,30 +4443,39 @@ bxe_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr)
{
struct bxe_softc *sc = if_getsoftc(ifp);
/* Bug 165447: the 'ifconfig' tool skips printing of the "status: ..."
line if the IFM_AVALID flag is *NOT* set. So we need to set this
flag unconditionally (irrespective of the admininistrative
'up/down' state of the interface) to ensure that that line is always
displayed.
*/
ifmr->ifm_status = IFM_AVALID;
/* Setup the default interface info. */
ifmr->ifm_active = IFM_ETHER;
/* Report link down if the driver isn't running. */
if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) == 0) {
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
ifmr->ifm_active |= IFM_NONE;
BLOGD(sc, DBG_PHY, "in %s : nic still not loaded fully\n", __func__);
BLOGD(sc, DBG_PHY, "in %s : link_up (1) : %d\n",
__func__, sc->link_vars.link_up);
return;
}
/* Setup the default interface info. */
ifmr->ifm_status = IFM_AVALID;
ifmr->ifm_active = IFM_ETHER;
if (sc->link_vars.link_up) {
ifmr->ifm_status |= IFM_ACTIVE;
ifmr->ifm_active |= IFM_FDX;
} else {
ifmr->ifm_active |= IFM_NONE;
BLOGD(sc, DBG_PHY, "in %s : setting IFM_NONE\n",
__func__);
return;
}
ifmr->ifm_active |= sc->media;
if (sc->link_vars.duplex == DUPLEX_FULL) {
ifmr->ifm_active |= IFM_FDX;
} else {
ifmr->ifm_active |= IFM_HDX;
}
return;
}
static void
@ -7038,7 +7049,7 @@ bxe_link_attn(struct bxe_softc *sc)
/* Make sure that we are synced with the current statistics */
bxe_stats_handle(sc, STATS_EVENT_STOP);
BLOGI(sc, "link_vars phy_flags : %x\n", sc->link_vars.phy_flags);
BLOGD(sc, DBG_LOAD, "link_vars phy_flags : %x\n", sc->link_vars.phy_flags);
elink_link_update(&sc->link_params, &sc->link_vars);
if (sc->link_vars.link_up) {
@ -9127,11 +9138,16 @@ bxe_interrupt_detach(struct bxe_softc *sc)
while (taskqueue_cancel_timeout(fp->tq, &fp->tx_timeout_task,
NULL))
taskqueue_drain_timeout(fp->tq, &fp->tx_timeout_task);
}
for (i = 0; i < sc->num_queues; i++) {
fp = &sc->fp[i];
if (fp->tq != NULL) {
taskqueue_free(fp->tq);
fp->tq = NULL;
}
}
}
if (sc->sp_tq) {
taskqueue_drain(sc->sp_tq, &sc->sp_tq_task);