Author: shurd
Date: Wed Nov 14 20:36:18 2018
New Revision: 340445
URL: https://svnweb.freebsd.org/changeset/base/340445
Log:
Clear RX completion queue state veriables in iflib_stop()
iflib_stop() was not resetting the rxq completion queue state variables.
This meant that for any driver that has receive completion queues, after a
reinit, iflib would start asking what's available on the rx side starting at
whatever the completion queue index was prior to the stop, instead of at 0.
Submitted by: pkelsey
Reported by: pkelsey
MFC after: 3 days
Sponsored by: Limelight Networks
Modified:
head/sys/net/iflib.c
Modified: head/sys/net/iflib.c
==============================================================================
--- head/sys/net/iflib.c Wed Nov 14 20:35:04 2018 (r340444)
+++ head/sys/net/iflib.c Wed Nov 14 20:36:18 2018 (r340445)
@@ -2414,6 +2414,7 @@ iflib_stop(if_ctx_t ctx)
for (i = 0; i < scctx->isc_nrxqsets; i++, rxq++) {
/* make sure all transmitters have completed before proceeding
XXX */
+ rxq->ifr_cq_gen = rxq->ifr_cq_cidx = rxq->ifr_cq_pidx = 0;
for (j = 0, di = rxq->ifr_ifdi; j < sctx->isc_nrxqs; j++, di++)
bzero((void *)di->idi_vaddr, di->idi_size);
/* also resets the free lists pidx/cidx */
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