Author: erj Date: Thu Jan 2 23:35:06 2020 New Revision: 356310 URL: https://svnweb.freebsd.org/changeset/base/356310
Log: iflib: Prevent watchdog from resetting idle queues While changing link state in iflib_link_state_change(), queues are marked as IFLIB_QUEUE_IDLE to disable watchdog. Currently, iflib_timer() watchdog does not check for previous queue status before marking it as IFLIB_QUEUE_HUNG. This patch adds check of queue status before marking it as hung. Signed-off-by: Piotr Pietruszewski <piotr.pietruszew...@intel.com> PR: 239240 Submitted by: Piotr Pietruszewski <piotr.pietruszew...@intel.com> Reported by: ultima@ Reviewed by: gallatin@, erj@ MFC after: 3 days Sponsored by: Intel Corporation Differential Revision: https://reviews.freebsd.org/D21712 Modified: head/sys/net/iflib.c Modified: head/sys/net/iflib.c ============================================================================== --- head/sys/net/iflib.c Thu Jan 2 23:24:57 2020 (r356309) +++ head/sys/net/iflib.c Thu Jan 2 23:35:06 2020 (r356310) @@ -2263,8 +2263,11 @@ iflib_timer(void *arg) (sctx->isc_pause_frames == 0))) goto hung; - if (ifmp_ring_is_stalled(txq->ift_br)) + if (txq->ift_qstatus != IFLIB_QUEUE_IDLE && + ifmp_ring_is_stalled(txq->ift_br)) { + KASSERT(ctx->ifc_link_state == LINK_STATE_UP, ("queue can't be marked as hung if interface is down")); txq->ift_qstatus = IFLIB_QUEUE_HUNG; + } txq->ift_cleaned_prev = txq->ift_cleaned; } #ifdef DEV_NETMAP _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
