From: "Matthew R. Ochs" <mrochs@linux.vnet.ibm.com>
To: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Cc: linux-scsi <linux-scsi@vger.kernel.org>,
James Bottomley <jejb@linux.vnet.ibm.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
"Manoj N. Kumar" <manoj@linux.vnet.ibm.com>,
Frederic Barrat <fbarrat@linux.vnet.ibm.com>,
linuxppc-dev@lists.ozlabs.org, Ian Munsie <imunsie@au1.ibm.com>,
Andrew Donnellan <andrew.donnellan@au1.ibm.com>,
Christophe Lombard <clombard@linux.vnet.ibm.com>
Subject: Re: [PATCH 04/17] cxlflash: Schedule asynchronous reset of the host
Date: Thu, 22 Jun 2017 14:55:09 -0500 [thread overview]
Message-ID: <1E91F99C-766B-454C-9F31-041E1725A81E@linux.vnet.ibm.com> (raw)
In-Reply-To: <1498097657-8826-1-git-send-email-ukrishn@linux.vnet.ibm.com>
> On Jun 21, 2017, at 9:14 PM, Uma Krishnan <ukrishn@linux.vnet.ibm.com> =
wrote:
>=20
> A context reset failure indicates the AFU is in a bad state. At =
present,
> when such a situation occurs, no further action is taken. This leaves =
the
> adapter in an unusable state with no recoverable actions.
>=20
> To avoid this situation, context reset failures will be escalated to a =
host
> reset operation. This will be done asynchronously to allow the acting
> thread to return to the user with a failure.
>=20
> Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
next prev parent reply other threads:[~2017-06-22 19:55 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-22 2:12 [PATCH 00/17] cxlflash: LUN provisioning support and miscellaneous fixes Uma Krishnan
2017-06-22 2:13 ` [PATCH 01/17] cxlflash: Combine the send queue locks Uma Krishnan
2017-06-22 19:53 ` Matthew R. Ochs
2017-06-22 2:13 ` [PATCH 02/17] cxlflash: Update cxlflash_afu_sync() to return errno Uma Krishnan
2017-06-22 19:54 ` Matthew R. Ochs
2017-06-22 2:14 ` [PATCH 03/17] cxlflash: Reset hardware queue context via specified register Uma Krishnan
2017-06-22 19:54 ` Matthew R. Ochs
2017-06-22 2:14 ` [PATCH 04/17] cxlflash: Schedule asynchronous reset of the host Uma Krishnan
2017-06-22 19:55 ` Matthew R. Ochs [this message]
2017-06-22 2:14 ` [PATCH 05/17] cxlflash: Handle AFU sync failures Uma Krishnan
2017-06-22 19:55 ` Matthew R. Ochs
2017-06-22 2:14 ` [PATCH 06/17] cxlflash: Track pending scsi commands in each hardware queue Uma Krishnan
2017-06-22 19:56 ` Matthew R. Ochs
2017-06-22 2:14 ` [PATCH 07/17] cxlflash: Flush pending commands in cleanup path Uma Krishnan
2017-06-22 19:56 ` Matthew R. Ochs
2017-06-22 2:15 ` [PATCH 08/17] cxlflash: Add scsi command abort handler Uma Krishnan
2017-06-22 19:56 ` Matthew R. Ochs
2017-06-22 2:15 ` [PATCH 09/17] cxlflash: Create character device to provide host management interface Uma Krishnan
2017-06-22 19:56 ` Matthew R. Ochs
2017-06-22 2:15 ` [PATCH 10/17] cxlflash: Separate AFU internal command handling from AFU sync specifics Uma Krishnan
2017-06-22 2:15 ` [PATCH 11/17] cxlflash: Introduce host ioctl support Uma Krishnan
2017-06-22 2:16 ` [PATCH 12/17] cxlflash: Refactor AFU capability checking Uma Krishnan
2017-06-22 2:16 ` [PATCH 13/17] cxlflash: Support LUN provisioning Uma Krishnan
2017-06-22 2:16 ` [PATCH 14/17] cxlflash: Support AFU debug Uma Krishnan
2017-06-22 2:16 ` [PATCH 15/17] cxlflash: Support WS16 unmap Uma Krishnan
2017-06-22 2:16 ` [PATCH 16/17] cxlflash: Remove zeroing of private command data Uma Krishnan
2017-06-22 2:16 ` [PATCH 17/17] cxlflash: Update TMF command processing Uma Krishnan
2017-06-26 18:43 ` [PATCH 00/17] cxlflash: LUN provisioning support and miscellaneous fixes Martin K. Petersen
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