search for: vdpa_nl_cmd_dev_add_set_doit

...Si-Wei Liu <si-wei.liu at oracle.com> --- drivers/vdpa/vdpa.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c index 8ef7aa1..3a82ca78 100644 --- a/drivers/vdpa/vdpa.c +++ b/drivers/vdpa/vdpa.c @@ -622,9 +622,11 @@ static int vdpa_nl_cmd_dev_add_set_doit(struct sk_buff *skb, struct genl_info *i err = PTR_ERR(mdev); goto err; } + if ((config.mask & mdev->config_attr_mask) != config.mask) { - NL_SET_ERR_MSG_MOD(info->extack, - "All provided attributes are not supported"); + NL_SET_ERR_MSG_FMT_MOD(info->extack,...

This patchset is pre-requisite to export and provision device config attributes and features for vdpa live migration, in a way backward and forward compatibility can be retained. The follow up work [1] will need to be built around the new feature provisioning uAPI, with which it's easier to formalize migration compatibility support at the driver level. Thanks, -Siwei [1] [PATCH v3 0/4] vDPA:

This patchset is pre-requisite to export and provision device config attributes and features for vdpa live migration, in a way backward and forward compatibility can be retained. The follow up work [1] will need to be built around the new feature provisioning uAPI, with which it's easier to formalize migration compatibility support at the driver level. Thanks, -Siwei [1] [PATCH v3 0/4] vDPA:

...> User should enable it when user prefers to. > > > > OK. And which commit changes that? > vdpa dev add command [1] has the ability to set the desired features. > The commit log of this patch has an example too. > > [1] https://elixir.bootlin.com/linux/v6.3-rc2/C/ident/vdpa_nl_cmd_dev_add_set_doit I mean if this is claiming to fix a performance regression it should have a Fixes: tag with the commit that introduced the regression. -- MST

This patchset is pre-requisite to export and provision device config attributes and features for vdpa live migration, in a way backward and forward compatibility can be retained. The follow up work [1] will need to be built around the new feature provisioning uAPI, with which it's easier to formalize migration compatibility support at the driver level. Thanks, -Siwei [1] [PATCH v3 0/4] vDPA:

This patchset is pre-requisite to export and provision device config attributes and features for vdpa live migration, in a way backward and forward compatibility can be retained. The follow up work [1] will need to be built around the new feature provisioning uAPI, with which it's easier to formalize migration compatibility support at the driver level. Thanks, -Siwei [1] [PATCH v3 0/4] vDPA:

Live migration of vdpa would typically require re-instate vdpa device with an idential set of configs on the destination node, same way as how source node created the device in the first place. In order to allow live migration orchestration software to export the initial set of vdpa attributes with which the device was created, it will be useful if the vdpa tool can report the config on demand