From: Dmitry Fomichev <Dmitry.Fomichev@wdc.com>
To: Keith Busch <kbusch@kernel.org>,
"qemu-block@nongnu.org" <qemu-block@nongnu.org>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
Klaus Jensen <k.jensen@samsung.com>
Cc: "Kevin Wolf" <kwolf@redhat.com>,
"Niklas Cassel" <Niklas.Cassel@wdc.com>,
"Philippe Mathieu-Daudé" <philmd@redhat.com>
Subject: RE: [PATCH 8/9] hw/block/nvme: add trace event for requests with non-zero status code
Date: Wed, 30 Sep 2020 23:21:57 +0000 [thread overview]
Message-ID: <MN2PR04MB5951128DF467E8BA4649A373E1330@MN2PR04MB5951.namprd04.prod.outlook.com> (raw)
In-Reply-To: <20200930220414.562527-9-kbusch@kernel.org>
> -----Original Message-----
> From: Keith Busch <kbusch@kernel.org>
> Sent: Wednesday, September 30, 2020 6:04 PM
> To: qemu-block@nongnu.org; qemu-devel@nongnu.org; Klaus Jensen
> <k.jensen@samsung.com>
> Cc: Niklas Cassel <Niklas.Cassel@wdc.com>; Dmitry Fomichev
> <Dmitry.Fomichev@wdc.com>; Kevin Wolf <kwolf@redhat.com>; Philippe
> Mathieu-Daudé <philmd@redhat.com>; Keith Busch <kbusch@kernel.org>
> Subject: [PATCH 8/9] hw/block/nvme: add trace event for requests with
> non-zero status code
>
> From: Klaus Jensen <k.jensen@samsung.com>
>
> If a command results in a non-zero status code, trace it.
>
> Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
> Signed-off-by: Keith Busch <kbusch@kernel.org>
> ---
> hw/block/nvme.c | 6 ++++++
> hw/block/trace-events | 1 +
> 2 files changed, 7 insertions(+)
>
> diff --git a/hw/block/nvme.c b/hw/block/nvme.c
> index dc971c9653..16804d0278 100644
> --- a/hw/block/nvme.c
> +++ b/hw/block/nvme.c
> @@ -777,6 +777,12 @@ static void
> nvme_enqueue_req_completion(NvmeCQueue *cq, NvmeRequest *req)
> assert(cq->cqid == req->sq->cqid);
> trace_pci_nvme_enqueue_req_completion(nvme_cid(req), cq->cqid,
> req->status);
> +
> + if (req->status) {
> + trace_pci_nvme_err_req_status(nvme_cid(req), nvme_nsid(req->ns),
> + req->status, req->cmd.opcode);
> + }
> +
Very useful.
Reviewed-by: Dmitry Fomichev <dmitry.fomichev@wdc.com>
> QTAILQ_REMOVE(&req->sq->out_req_list, req, entry);
> QTAILQ_INSERT_TAIL(&cq->req_list, req, entry);
> timer_mod(cq->timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
> 500);
> diff --git a/hw/block/trace-events b/hw/block/trace-events
> index 180c43d258..ff3ca4bbf6 100644
> --- a/hw/block/trace-events
> +++ b/hw/block/trace-events
> @@ -89,6 +89,7 @@ pci_nvme_mmio_shutdown_cleared(void) "shutdown
> bit cleared"
>
> # nvme traces for error conditions
> pci_nvme_err_mdts(uint16_t cid, size_t len) "cid %"PRIu16" len %zu"
> +pci_nvme_err_req_status(uint16_t cid, uint32_t nsid, uint16_t status,
> uint8_t opc) "cid %"PRIu16" nsid %"PRIu32" status 0x%"PRIx16" opc
> 0x%"PRIx8""
> pci_nvme_err_addr_read(uint64_t addr) "addr 0x%"PRIx64""
> pci_nvme_err_addr_write(uint64_t addr) "addr 0x%"PRIx64""
> pci_nvme_err_cfs(void) "controller fatal status"
> --
> 2.24.1
next prev parent reply other threads:[~2020-09-30 23:23 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-30 22:04 [PATCH 0/9] nvme qemu cleanups and fixes Keith Busch
2020-09-30 22:04 ` [PATCH 1/9] hw/block/nvme: remove pointless rw indirection Keith Busch
2020-10-01 4:05 ` Klaus Jensen
2020-10-01 8:48 ` Klaus Jensen
2020-10-01 15:24 ` Keith Busch
2020-10-01 18:34 ` Klaus Jensen
2020-10-06 1:49 ` Dmitry Fomichev
2020-09-30 22:04 ` [PATCH 2/9] hw/block/nvme: fix log page offset check Keith Busch
2020-09-30 23:18 ` Dmitry Fomichev
2020-10-01 4:05 ` Klaus Jensen
2020-10-01 10:11 ` Philippe Mathieu-Daudé
2020-09-30 22:04 ` [PATCH 3/9] hw/block/nvme: support per-namespace smart log Keith Busch
2020-10-01 4:10 ` Klaus Jensen
2020-10-01 15:20 ` Keith Busch
2020-10-01 17:18 ` Klaus Jensen
2020-10-01 17:30 ` Keith Busch
2020-10-01 17:34 ` Klaus Jensen
2020-10-02 8:48 ` Klaus Jensen
2020-10-06 1:57 ` Dmitry Fomichev
2020-09-30 22:04 ` [PATCH 4/9] hw/block/nvme: validate command set selected Keith Busch
2020-10-01 4:14 ` Klaus Jensen
2020-09-30 22:04 ` [PATCH 5/9] hw/block/nvme: support for admin-only command set Keith Busch
2020-10-01 0:11 ` Dmitry Fomichev
2020-10-01 4:17 ` Klaus Jensen
2020-09-30 22:04 ` [PATCH 6/9] hw/block/nvme: reject io commands if only admin command set selected Keith Busch
2020-09-30 23:11 ` Dmitry Fomichev
2020-09-30 22:04 ` [PATCH 7/9] hw/block/nvme: add nsid to get/setfeat trace events Keith Busch
2020-09-30 22:04 ` [PATCH 8/9] hw/block/nvme: add trace event for requests with non-zero status code Keith Busch
2020-09-30 23:21 ` Dmitry Fomichev [this message]
2020-10-01 15:25 ` Philippe Mathieu-Daudé
2020-09-30 22:04 ` [PATCH 9/9] hw/block/nvme: report actual LBA data shift in LBAF Keith Busch
2020-10-01 9:48 ` Klaus Jensen
2020-10-01 18:46 ` [PATCH 0/9] nvme qemu cleanups and fixes Klaus Jensen
2020-10-13 9:04 ` Klaus Jensen
2020-10-13 17:48 ` Keith Busch
2020-10-13 18:36 ` Klaus Jensen
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