Messages in this thread | ![/](/images/icornerl.gif) | | From | "Martin K. Petersen" <> | Subject | Re: [PATCH v2 0/5] ibmvfc: MQ preparatory locking work | Date | Wed, 13 Jan 2021 00:48:28 -0500 |
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On Wed, 6 Jan 2021 14:18:30 -0600, Tyrel Datwyler wrote:
> The ibmvfc driver in its current form relies heavily on the host_lock. This > patchset introduces a genric queue with its own queue lock and sent/free event > list locks. This generic queue allows the driver to decouple the primary queue > and future subordinate queues from the host lock reducing lock contention while > also relaxing locking for submissions and completions to simply the list lock of > the queue in question. > > [...]
Applied to 5.12/scsi-queue, thanks!
[1/5] ibmvfc: define generic queue structure for CRQs https://git.kernel.org/mkp/scsi/c/f8968665af28 [2/5] ibmvfc: make command event pool queue specific https://git.kernel.org/mkp/scsi/c/e4b26f3db864 [3/5] ibmvfc: define per-queue state/list locks https://git.kernel.org/mkp/scsi/c/57e80e0bc108 [4/5] ibmvfc: complete commands outside the host/queue lock https://git.kernel.org/mkp/scsi/c/1f4a4a19508d [5/5] ibmvfc: relax locking around ibmvfc_queuecommand https://git.kernel.org/mkp/scsi/c/654080d02edb
-- Martin K. Petersen Oracle Linux Engineering
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