From: "Meneghini, John" <John.Meneghini@netapp.com>
To: Keith Busch <kbusch@kernel.org>,
"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
"hch@lst.de" <hch@lst.de>, "sagi@grimberg.me" <sagi@grimberg.me>
Cc: Hannes Reinecke <hare@suse.de>,
"Meneghini, John" <John.Meneghini@netapp.com>
Subject: Re: [PATCH] nvme: Translate more status codes to blk_status_t
Date: Thu, 12 Dec 2019 19:41:50 +0000 [thread overview]
Message-ID: <93B95176-A634-4A62-A8BF-2C599E597979@netapp.com> (raw)
In-Reply-To: <20191205195730.5774-1-kbusch@kernel.org>
On 12/5/19, 2:58 PM, "Keith Busch" <kbusch@kernel.org> wrote:
Decode interrupted command and not ready namespace nvme status codes to
BLK_STS_TARGET. These are not generic IO errors and should use a non-path
specific error so that it can use the non-failover retry path.
Reported-by: John Meneghini <John.Meneghini@netapp.com>
Cc: Hannes Reinecke <hare@suse.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
---
drivers/nvme/host/core.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 2a84e1402244..f1731d847e38 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -222,6 +222,8 @@ static blk_status_t nvme_error_status(u16 status)
case NVME_SC_CAP_EXCEEDED:
return BLK_STS_NOSPC;
case NVME_SC_LBA_RANGE:
+ case NVME_SC_CMD_INTERRUPTED:
+ case NVME_SC_NS_NOT_READY:
return BLK_STS_TARGET;
case NVME_SC_BAD_ATTRIBUTES:
case NVME_SC_ONCS_NOT_SUPPORTED:
--
2.21.0
So... I think this will address the problem I reported in [PATCH V2] nvme: Add support for ACRE Command Interrupted status
I guess we're not concerned about overloading BLK_STS_TARGET... I still think using BLK_STS_DEV_RESOURCE
to handle NVME_SC_CMD_INTERRUPTED is a better idea.
[BLK_STS_TARGET] = { -EREMOTEIO, "critical target" },
[BLK_STS_DEV_RESOURCE] = { -EBUSY, "device resource" },
Let me test this out and I’ll see what happens.
Thanks,
/John
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next prev parent reply other threads:[~2019-12-12 19:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-05 19:57 [PATCH] nvme: Translate more status codes to blk_status_t Keith Busch
2019-12-12 9:20 ` Christoph Hellwig
2019-12-12 19:41 ` Meneghini, John [this message]
2019-12-13 7:32 ` Meneghini, John
2019-12-13 21:02 ` Sagi Grimberg
2019-12-16 8:02 ` Hannes Reinecke
2019-12-16 15:30 ` Keith Busch
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