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[PATCH v3 0/2] vhost-scsi: Support worker ioctls
From: |
Mike Christie |
Subject: |
[PATCH v3 0/2] vhost-scsi: Support worker ioctls |
Date: |
Mon, 4 Dec 2023 17:16:16 -0600 |
The following patches allow users to configure the vhost worker threads
for vhost-scsi. With vhost-net we get a worker thread per rx/tx virtqueue
pair, but for vhost-scsi we get one worker for all workqueues. This
becomes a bottlneck after 2 queues are used.
In the upstream linux kernel commit:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/vhost/vhost.c?id=c1ecd8e9500797748ae4f79657971955d452d69d
we enabled the vhost layer to be able to create a worker thread and
attach it to a virtqueue.
This patchset adds support to vhost-scsi to use these ioctls so we are
no longer limited to the single worker.
v3:
- Warn user if they have set worker_per_virtqueue=true but the kernel
doesn't support it.
v2:
- Make config option a bool instead of an int.
- [PATCH v3 0/2] vhost-scsi: Support worker ioctls,
Mike Christie <=