From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Cc: "Martin K . Petersen" <martin.petersen@oracle.com>,
thenzl@redhat.com, linux-scsi@vger.kernel.org,
sathya.prakash@broadcom.com,
suganath-prabu.subramani@broadcom.com
Subject: Re: [PATCH] mpt3sas: Fix timeouts observed while reenabling IRQ
Date: Mon, 2 Nov 2020 21:01:57 -0500 [thread overview]
Message-ID: <160436888615.27492.1378107365559358809.b4-ty@oracle.com> (raw)
In-Reply-To: <20201102072746.27410-1-sreekanth.reddy@broadcom.com>
On Mon, 2 Nov 2020 12:57:46 +0530, Sreekanth Reddy wrote:
> While reenabling the IRQ after irq poll there may be small time
> window where HBA firmware has posted some replies and raise the
> interrupts but driver has not received the interrupts. So we may
> observe IO timeouts as the driver has not processed the replies
> as interrupts got missed while reenabling the IRQ.
>
> So, to fix this issue, the driver has to go for one more
> round of processing the reply descriptors from reply descriptor
> post queue after enabling the IRQ.
Applied to 5.10/scsi-fixes, thanks!
[1/1] scsi: mpt3sas: Fix timeouts observed while reenabling IRQ
https://git.kernel.org/mkp/scsi/c/5feed64f9199
--
Martin K. Petersen Oracle Linux Engineering
prev parent reply other threads:[~2020-11-03 2:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-02 7:27 [PATCH] mpt3sas: Fix timeouts observed while reenabling IRQ Sreekanth Reddy
2020-11-02 17:19 ` Tomas Henzl
2020-11-03 2:01 ` Martin K. Petersen [this message]
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