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[PATCH v3 0/5] vhost-user-blk: dynamically resize config space based on
From: |
Daniil Tatianin |
Subject: |
[PATCH v3 0/5] vhost-user-blk: dynamically resize config space based on features |
Date: |
Tue, 6 Sep 2022 10:31:06 +0300 |
This patch set attempts to align vhost-user-blk with virtio-blk in
terms of backward compatibility and flexibility. It also improves
the virtio core by introducing new common code that can be used by
a virtio device to calculate its config space size.
In particular it adds the following things:
- Common virtio code for deducing the required device config size based
on provided host features.
- Ability to disable modern virtio-blk features like
discard/write-zeroes for vhost-user-blk.
- Dynamic configuration space resizing based on enabled features,
by reusing the common code introduced in the earlier commits.
- Cleans up the VHostUserBlk structure by reusing parent fields.
Changes since v1 (mostly addresses Stefan's feedback):
- Introduce VirtIOConfigSizeParams & virtio_get_config_size
- Remove virtio_blk_set_config_size altogether, make virtio-blk-common.c
only hold the virtio-blk config size parameters.
- Reuse parent fields in vhost-user-blk instead of introducing new ones.
Changes since v2:
- Squash the first four commits into one
- Set .min_size for virtio-net as well
- Move maintainer/meson user-blk bits to the last commit
Daniil Tatianin (5):
virtio: introduce VirtIOConfigSizeParams & virtio_get_config_size
virtio-blk: move config size params to virtio-blk-common
vhost-user-blk: make it possible to disable write-zeroes/discard
vhost-user-blk: make 'config_wce' part of 'host_features'
vhost-user-blk: dynamically resize config space based on features
MAINTAINERS | 4 +++
hw/block/meson.build | 4 +--
hw/block/vhost-user-blk.c | 29 +++++++++++---------
hw/block/virtio-blk-common.c | 39 +++++++++++++++++++++++++++
hw/block/virtio-blk.c | 28 +++----------------
hw/net/virtio-net.c | 9 +++++--
hw/virtio/virtio.c | 10 ++++---
include/hw/virtio/vhost-user-blk.h | 1 -
include/hw/virtio/virtio-blk-common.h | 20 ++++++++++++++
include/hw/virtio/virtio.h | 10 +++++--
10 files changed, 105 insertions(+), 49 deletions(-)
create mode 100644 hw/block/virtio-blk-common.c
create mode 100644 include/hw/virtio/virtio-blk-common.h
--
2.25.1
- [PATCH v3 0/5] vhost-user-blk: dynamically resize config space based on features,
Daniil Tatianin <=
- [PATCH v3 1/5] virtio: introduce VirtIOConfigSizeParams & virtio_get_config_size, Daniil Tatianin, 2022/09/06
- [PATCH v3 3/5] vhost-user-blk: make it possible to disable write-zeroes/discard, Daniil Tatianin, 2022/09/06
- [PATCH v3 2/5] virtio-blk: move config size params to virtio-blk-common, Daniil Tatianin, 2022/09/06
- [PATCH v3 5/5] vhost-user-blk: dynamically resize config space based on features, Daniil Tatianin, 2022/09/06
- [PATCH v3 4/5] vhost-user-blk: make 'config_wce' part of 'host_features', Daniil Tatianin, 2022/09/06
- Re: [PATCH v3 0/5] vhost-user-blk: dynamically resize config space based on features, Raphael Norwitz, 2022/09/07