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Code Issues Releases Activity

Clear RX completion queue state veriables in iflib_stop()

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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
This commit is contained in:
Stephen Hurd 2018-11-14 20:36:18 +00:00
parent 905837ebe7
commit 0efb1a464f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=340445
1 changed files with 1 additions and 0 deletions
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sys/net/iflib.c
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@ -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 */