[dpdk-dev] [PATCH v2] event/octeontx2: fix queue removal from Rx adapter

[Jerin Jacob]

On Fri, May 1, 2020 at 4:44 PM Pavan Nikhilesh Bhagavatula
<pbhagavatula at marvell.com> wrote:
>
> >When eth port queue is removed from Rx adapter using
> >rte_event_eth_rx_adapter_queue_del() it incorrectly
> >initializes CQ context instead of modifying it. This
> >might lead to a crash when CQ context is modified
> >as a part of rte_eth_dev_stop() sequence as CQ will
> >hold invalid entries. This is responsibility of an
> >application to call rte_event_eth_rx_adapter_queue_del()
> >to remove eth port queue from Rx adapter in tear down
> >sequence.
> >
> >Fixes: 37720fc1fba8 ("event/octeontx2: add Rx adapter")
> >Cc: stable at dpdk.org
> >
> >Signed-off-by: Lukasz Bartosik <lbartosik at marvell.com>
>
> Acked-by: Pavan Nikhilesh <pbhagavatula at marvell.com>


Applied to dpdk-next-eventdev/master. Thanks.


>
> >---
> > drivers/event/octeontx2/otx2_evdev_adptr.c | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> >diff --git a/drivers/event/octeontx2/otx2_evdev_adptr.c
> >b/drivers/event/octeontx2/otx2_evdev_adptr.c
> >index 233cba2..8bdcfa3 100644
> >--- a/drivers/event/octeontx2/otx2_evdev_adptr.c
> >+++ b/drivers/event/octeontx2/otx2_evdev_adptr.c
> >@@ -133,7 +133,7 @@ sso_rxq_disable(struct otx2_eth_dev *dev,
> >uint16_t qid)
> >       aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
> >       aq->qidx = qid;
> >       aq->ctype = NIX_AQ_CTYPE_CQ;
> >-      aq->op = NIX_AQ_INSTOP_INIT;
> >+      aq->op = NIX_AQ_INSTOP_WRITE;
> >
> >       aq->cq.ena = 1;
> >       aq->cq.caching = 1;
> >@@ -144,7 +144,7 @@ sso_rxq_disable(struct otx2_eth_dev *dev,
> >uint16_t qid)
> >
> >       rc = otx2_mbox_process(mbox);
> >       if (rc < 0) {
> >-              otx2_err("Failed to init cq context");
> >+              otx2_err("Failed to enable cq context");
> >               goto fail;
> >       }
> >
> >--
> >2.7.4
>