Hi Michael,
do you think this series is in an acceptable state to be queued for the
next merge window?
All patches should be already acked by Jason, let me know if I need to
change anything.
Thanks,
Stefano
On Mon, Mar 15, 2021 at 05:34:36PM +0100, Stefano Garzarella wrote:
v4:
- added support for iproute2 vdpa management tool in vdpa_sim_blk
- removed get/set_config patches
- 'vdpa: add return value to get_config/set_config callbacks'
- 'vhost/vdpa: remove vhost_vdpa_config_validate()'
- added get_config_size() patches
- 'vdpa: add get_config_size callback in vdpa_config_ops'
- 'vhost/vdpa: use get_config_size callback in vhost_vdpa_config_validate()'
v3: https://lore.kernel.org/lkml/20210204172230.85853-1-sgarzare@xxxxxxxxxx/
v2: https://lore.kernel.org/lkml/20210128144127.113245-1-sgarzare@xxxxxxxxxx/
v1: https://lore.kernel.org/lkml/93f207c0-61e6-3696-f218-e7d7ea9a7c93@xxxxxxxxxx/
This series is the second part of the v1 linked above. The first part with
refactoring of vdpa_sim has already been merged.
The patches are based on Max Gurtovoy's work and extend the block simulator to
have a ramdisk behaviour.
As mentioned in the v1 there was 2 issues and I fixed them in this series:
1. The identical mapping in the IOMMU used until now in vdpa_sim created issues
when mapping different virtual pages with the same physical address.
Fixed by patch "vdpa_sim: use iova module to allocate IOVA addresses"
2. There was a race accessing the IOMMU between the vdpasim_blk_work() and the
device driver that map/unmap DMA regions. Fixed by patch "vringh: add
'iotlb_lock' to synchronize iotlb accesses"
I used the Xie's patch coming from VDUSE series to allow vhost-vdpa to use
block devices, and I added get_config_size() callback to allow any device
in vhost-vdpa.
The series also includes small fixes for vringh, vdpa, and vdpa_sim that I
discovered while implementing and testing the block simulator.
Thanks for your feedback,
Stefano
Max Gurtovoy (1):
vdpa: add vdpa simulator for block device
Stefano Garzarella (12):
vdpa_sim: use iova module to allocate IOVA addresses
vringh: add 'iotlb_lock' to synchronize iotlb accesses
vringh: reset kiov 'consumed' field in __vringh_iov()
vringh: explain more about cleaning riov and wiov
vringh: implement vringh_kiov_advance()
vringh: add vringh_kiov_length() helper
vdpa_sim: cleanup kiovs in vdpasim_free()
vdpa: add get_config_size callback in vdpa_config_ops
vhost/vdpa: use get_config_size callback in
vhost_vdpa_config_validate()
vdpa_sim_blk: implement ramdisk behaviour
vdpa_sim_blk: handle VIRTIO_BLK_T_GET_ID
vdpa_sim_blk: add support for vdpa management tool
Xie Yongji (1):
vhost/vdpa: Remove the restriction that only supports virtio-net
devices
drivers/vdpa/vdpa_sim/vdpa_sim.h | 2 +
include/linux/vdpa.h | 4 +
include/linux/vringh.h | 19 +-
drivers/vdpa/ifcvf/ifcvf_main.c | 6 +
drivers/vdpa/mlx5/net/mlx5_vnet.c | 6 +
drivers/vdpa/vdpa_sim/vdpa_sim.c | 127 ++++++----
drivers/vdpa/vdpa_sim/vdpa_sim_blk.c | 338 +++++++++++++++++++++++++++
drivers/vdpa/virtio_pci/vp_vdpa.c | 8 +
drivers/vhost/vdpa.c | 15 +-
drivers/vhost/vringh.c | 69 ++++--
drivers/vdpa/Kconfig | 8 +
drivers/vdpa/vdpa_sim/Makefile | 1 +
12 files changed, 529 insertions(+), 74 deletions(-)
create mode 100644 drivers/vdpa/vdpa_sim/vdpa_sim_blk.c
--
2.30.2
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