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  1. 28 11月, 2022 2 次提交
    • O
      !215 cgroupv1使能cgroup writeback的功能 · c0a50b1e
      由 openeuler-ci-bot 提交于 
      Merge Pull Request from: @lujialin2 
 
In cgroupv1, cgroup writeback is not supported for two problems:
1) Blkcg_css and memcg_css are mounted on different cgroup trees. Therefore, blkcg_css cannot be found according to a certain memcg_css.
2) Buffer I/O is worked by kthread, which is in the root_blkcg. Therefore, blkcg cannot limit wbps and wiops of buffer I/O.
We solve the two problems and support cgroup writeback on cgroupv1.
CONFIG: CONFIG_CGROUP_V1_WRITEBACK
startup params: cgroup1_writeback
If someone want to support cgroup writeback in cgroupv1, turn on CONFIG_CGROUP_V1_WRITEBACK; add cgroup1_writeback;mount memcg and blkcg on cgroupv1;
If someone want to attach a cerntain blkcg to a memcg, just echo the inode of the blkcg into memory_wb_blkcg_ino of memcg.
 
 
Link:https://gitee.com/openeuler/kernel/pulls/215 
Reviewed-by: Liu Chao <liuchao173@huawei.com> 
Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com> 
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
      c0a50b1e
    • O
      !222 vdpa: add two ioctl commands to support generic vDPA · a3c1378d
      由 openeuler-ci-bot 提交于 
      Merge Pull Request from: @Zhao_Py 
 
[Description]​
To support generic vdpa deivce, we need add the following ioctls:
  - GET_CONFIG_SIZE: the size of the virtio config space
  - GET_VQS_COUNT: the count of virtqueues that exposed

#I5WXCZ
https://lore.kernel.org/all/20220315032553.455-1-longpeng2@huawei.com/

upstream commits list here:
64b9f64f vdpa: introduce virtio pci driver
442706f9 vdpa: add get_config_size callback in vdpa_config_ops
a61280dd vdpa: support exposing the config size to userspace
fd70a406 vdpa: Extend routine to accept vdpa device name
33b34750 vdpa: Define vdpa mgmt device, ops and a netlink interface
476c135e vdpa: Add missing comment for virtqueue count
903f7bca vdpa: Enable a user to add and delete a vdpa device
b04d910a vdpa: support exposing the count of vqs to userspace
64f2087a virtio-pci: do not access iomem via struct virtio_pci_device directly
b5d58094 virtio-pci: split out modern device
117a9de2 virtio-pci-modern: factor out modern device initialization logic
32490370 virtio-pci-modern: introduce vp_modern_remove()
1a5c85f1 virtio-pci-modern: introduce helper to set config vector
e3669129 virtio-pci-modern: introduce helpers for setting and getting status
0b017708 virtio-pci-modern: introduce helpers for setting and getting features
ed2a73db virtio-pci-modern: introduce vp_modern_generation()
a6525b99 Merge tag 'mips_5.12_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
e1b0fa2e virtio-pci-modern: introduce vp_modern_queue_address()
dc2e6481 virtio-pci-modern: introduce helper to set/get queue_enable
75658afb virtio-pci-modern: introduce helper for setting/geting queue size
6e52fc44 virtio-pci-modern: introduce helper for getting queue nums
1bfd8413 virtio-pci-modern: introduce helper to get notification offset
8000a6b6 virito-pci-modern: rename map_capability() to vp_modern_map_capability()
fd502729 virtio-pci: introduce modern device module
bc0d90ee vdpa: Enable user to query vdpa device info
29b90f92 vdpa: remove unnecessary 'default n' in Kconfig entries
275900df vdpa_sim: split vdpasim_virtqueue's iov field in out_iov and in_iov
2f8f4618 vdpa_sim: add device id field in vdpasim_dev_attr
a13b5918 vdpa_sim: add work_fn in vdpasim_dev_attr
c124a95e vdpa_sim: add set_config callback in vdpasim_dev_attr
011c35ba vdpa_sim: add supported_features field in vdpasim_dev_attr
f00bdce0 vdpa: set the virtqueue num during register
db1e8bb6 vdpa: split vdpasim to core and net modules
0c853c2c vdpa: add vdpa simulator for block device
da7af696 vdpa_sim: make vdpasim->buffer size configurable
a3c06ae1 vdpa_sim_net: Add support for user supported devices
899c4d18 vdpa_sim_blk: add support for vdpa management tool
539fec78 vdpa: add driver_override support
d6d8bb92: vhost/vdpa: use get_config_size callback in vhost_vdpa_config_validate()
9e3bb9b7: virtio_pci_modern: introduce helper to map vq notify area
7dca6c0e: virtio-pci library: switch to use vp_modern_map_vq_notify()
11d8ffed: vp_vdpa: switch to use vp_modern_map_vq_notify()
9e311bca: virtio-pci library: report resource address
526cb858: vp_vdpa: report doorbell address
0686082d: vdpa: Add reset callback in vdpa_config_ops
5bbfea1e: vp_vdpa: add vq irq offloading support
530a5678: vdpa: support packed virtqueue for set/get_vq_state()
0140b3d0: virtio-pci library: introduce vp_modern_get_driver_features()
1225c216: vp_vdpa: allow set vq state to initial state after reset
0f8a0b0b: virtio_pci_modern: __force cast the notify mapping
d7bce85a: virtio_pci_modern: correct sparse tags for notify
9632e78e: vp_vdpa: Fix return value check for vdpa_alloc_device()
27d9839f: virtio: always enter drivers/virtio/
eb057b44: vdpa: fix use-after-free on vp_vdpa_remove
bb47620b: vdpa: Consider device id larger than 31
ef76eb83: vdpa/mlx5: Fix clearing of VIRTIO_NET_F_MAC feature bit
870aaff9: vdpa: clean up get_config_size ret value handling

[Testing]
kernel options:
CONFIG_VDPA=m
CONFIG_VDPA_SIM=m
CONFIG_VDPA_SIM_NET=m
CONFIG_VDPA_SIM_BLOCK=m
CONFIG_VP_VDPA=m
CONFIG_VHOST=m
CONFIG_VHOST_MENU=y
CONFIG_VHOST_NET=m
CONFIG_VHOST_VSOCK=m
CONFIG_VHOST_VDPA=m
CONFIG_RUNTIME_TESTING_MENU=y

Tested on openEuler 22.03 LTS:
```
$ modprobe vdpa
$ modprobe vdpa_sim
$ modprobe vdpa-sim-net
$ modprobe vhost-vdpa
$ vdpa dev add mgmtdev vdpasim_net name vdpa0
$ vdpa dev show
vdpa0: type network mgmtdev vdpasim_net vendor_id 0 max_vqs 2 max_vq_size 256
$ ls /dev/vhost-vdpa-*
/dev/vhost-vdpa-0
```




 
 
Link:https://gitee.com/openeuler/kernel/pulls/222 
Reviewed-by: Kevin Zhu <zhukeqian1@huawei.com> 
Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com> 
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
      a3c1378d
  3. 26 11月, 2022 1 次提交
    • O
      !275 Intel Advanced Matrix Extensions (AMX) - KVM support · 606f08e8
      由 openeuler-ci-bot 提交于 
      Merge Pull Request from: @Linwang_68f8 
 
 **Content:** 
Intel® Advanced Matrix Extensions (Intel® AMX) is a new 64-bit programming paradigm consisting of two components: a set of 2-dimensional registers (tiles) representing sub-arrays from a larger 2-dimensional memory image, and an accelerator able to operate on tiles, the first implementation is called TMUL (tile matrix multiply unit).

There are 37 patches in total in this patch set to introduce AMX guest support in openEuler.

 **Intel-kernel issue:** 
https://gitee.com/openeuler/intel-kernel/issues/I5RQLJ

 **Test environment:** 
Host: openEuler 22.09 + backporting kernel
Guest: openEuler 22.09 + QEMU 7.0 + backporting kernel

 **Test cases:** 
Host:
kernel self-test including sigaltstack and AMX state management testing.
TMUL functional testing.
AMX stress.
Context switch testing.
INT8/BF16 online inference.
Guest:
AMX stress.
Context switch testing.
INT8/BF16 online inference.

 **Known issue:** 
N/A

 **Default config change:** 
N/A 
 
Link:https://gitee.com/openeuler/kernel/pulls/275 
Reviewed-by: Jun Tian <jun.j.tian@intel.com> 
Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com> 
Reviewed-by: Liu Chao <liuchao173@huawei.com> 
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
      606f08e8
  5. 25 11月, 2022 37 次提交