Date: Tue, 15 Oct 2024 17:43:11 GMT From: Osama Abboud <osamaabb@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: da73e3a7d08c - main - ena: Trigger reset when mbuf is NULL error happens Message-ID: <202410151743.49FHhBEx062335@gitrepo.freebsd.org>
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The branch main has been updated by osamaabb: URL: https://cgit.FreeBSD.org/src/commit/?id=da73e3a7d08c215a5d8530fea9a9730f8ac3709f commit da73e3a7d08c215a5d8530fea9a9730f8ac3709f Author: Osama Abboud <osamaabb@amazon.com> AuthorDate: 2024-08-07 06:24:20 +0000 Commit: Osama Abboud <osamaabb@FreeBSD.org> CommitDate: 2024-10-15 17:38:32 +0000 ena: Trigger reset when mbuf is NULL error happens The mbuf is NULL issue happens when the device sends the driver a completion with a wrong request id. Trigger a reset whenever this happens. Approved by: cperciva (mentor) MFC after: 2 weeks Sponsored by: Amazon, Inc. --- sys/dev/ena/ena_datapath.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/sys/dev/ena/ena_datapath.c b/sys/dev/ena/ena_datapath.c index 20864d0d2df6..ab082fa1810f 100644 --- a/sys/dev/ena/ena_datapath.c +++ b/sys/dev/ena/ena_datapath.c @@ -434,7 +434,9 @@ ena_rx_mbuf(struct ena_ring *rx_ring, struct ena_com_rx_buf_info *ena_bufs, req_id = ena_bufs[buf].req_id; rx_info = &rx_ring->rx_buffer_info[req_id]; if (unlikely(rx_info->mbuf == NULL)) { - ena_log(pdev, ERR, "NULL mbuf in rx_info"); + ena_log(pdev, ERR, "NULL mbuf in rx_info. qid %u req_id %u\n", + rx_ring->qid, req_id); + ena_trigger_reset(adapter, ENA_REGS_RESET_INV_RX_REQ_ID); return (NULL); } @@ -476,7 +478,8 @@ ena_rx_mbuf(struct ena_ring *rx_ring, struct ena_com_rx_buf_info *ena_bufs, rx_info = &rx_ring->rx_buffer_info[req_id]; if (unlikely(rx_info->mbuf == NULL)) { - ena_log(pdev, ERR, "NULL mbuf in rx_info"); + ena_log(pdev, ERR, "NULL mbuf in rx_info. qid %u req_id %u\n", + rx_ring->qid, req_id); /* * If one of the required mbufs was not allocated yet, * we can break there. @@ -488,6 +491,7 @@ ena_rx_mbuf(struct ena_ring *rx_ring, struct ena_com_rx_buf_info *ena_bufs, * with hw ring. */ m_freem(mbuf); + ena_trigger_reset(adapter, ENA_REGS_RESET_INV_RX_REQ_ID); return (NULL); }
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