diff mbox series

[v1,4/4] vdpa: Support reading device features

Message ID 20220210133115.115967-5-elic@nvidia.com (mailing list archive)
State Superseded
Headers show
Series vdpa tool enhancements | expand

Checks

Context Check Description
netdev/tree_selection success Not a local patch

Commit Message

Eli Cohen Feb. 10, 2022, 1:31 p.m. UTC
When showing the available management devices, check if
VDPA_ATTR_DEV_SUPPORTED_FEATURES feature is available and print the
supported features for a management device.

Example:
$ vdpa mgmtdev show
auxiliary/mlx5_core.sf.1:
  supported_classes net
  max_supported_vqs 257
  dev_features CSUM GUEST_CSUM MTU HOST_TSO4 HOST_TSO6 STATUS CTRL_VQ MQ \
               CTRL_MAC_ADDR VERSION_1 ACCESS_PLATFORM

Signed-off-by: Eli Cohen <elic@nvidia.com>
---
 vdpa/include/uapi/linux/vdpa.h |  1 +
 vdpa/vdpa.c                    | 11 +++++++++++
 2 files changed, 12 insertions(+)

Comments

Si-Wei Liu Feb. 12, 2022, 12:43 a.m. UTC | #1
On 2/10/2022 5:31 AM, Eli Cohen wrote:
> When showing the available management devices, check if
> VDPA_ATTR_DEV_SUPPORTED_FEATURES feature is available and print the
> supported features for a management device.
>
> Example:
> $ vdpa mgmtdev show
> auxiliary/mlx5_core.sf.1:
>    supported_classes net
>    max_supported_vqs 257
>    dev_features CSUM GUEST_CSUM MTU HOST_TSO4 HOST_TSO6 STATUS CTRL_VQ MQ \
>                 CTRL_MAC_ADDR VERSION_1 ACCESS_PLATFORM
It'd be nice to add an example output for json pretty format.

Reviewed-by: Si-Wei Liu <si-wei.liu@oracle.com>

>
> Signed-off-by: Eli Cohen <elic@nvidia.com>
> ---
>   vdpa/include/uapi/linux/vdpa.h |  1 +
>   vdpa/vdpa.c                    | 11 +++++++++++
>   2 files changed, 12 insertions(+)
>
> diff --git a/vdpa/include/uapi/linux/vdpa.h b/vdpa/include/uapi/linux/vdpa.h
> index a3ebf4d4d9b8..96ccbf305d14 100644
> --- a/vdpa/include/uapi/linux/vdpa.h
> +++ b/vdpa/include/uapi/linux/vdpa.h
> @@ -42,6 +42,7 @@ enum vdpa_attr {
>   
>   	VDPA_ATTR_DEV_NEGOTIATED_FEATURES,	/* u64 */
>   	VDPA_ATTR_DEV_MGMTDEV_MAX_VQS,          /* u32 */
> +	VDPA_ATTR_DEV_SUPPORTED_FEATURES,	/* u64 */
>   
>   	/* new attributes must be added above here */
>   	VDPA_ATTR_MAX,
> diff --git a/vdpa/vdpa.c b/vdpa/vdpa.c
> index 99ee828630cc..44b2a3e9e78a 100644
> --- a/vdpa/vdpa.c
> +++ b/vdpa/vdpa.c
> @@ -83,6 +83,7 @@ static const enum mnl_attr_data_type vdpa_policy[VDPA_ATTR_MAX + 1] = {
>   	[VDPA_ATTR_DEV_MAX_VQ_SIZE] = MNL_TYPE_U16,
>   	[VDPA_ATTR_DEV_NEGOTIATED_FEATURES] = MNL_TYPE_U64,
>   	[VDPA_ATTR_DEV_MGMTDEV_MAX_VQS] = MNL_TYPE_U32,
> +	[VDPA_ATTR_DEV_SUPPORTED_FEATURES] = MNL_TYPE_U64,
>   };
>   
>   static int attr_cb(const struct nlattr *attr, void *data)
> @@ -535,6 +536,16 @@ static void pr_out_mgmtdev_show(struct vdpa *vdpa, const struct nlmsghdr *nlh,
>   		print_uint(PRINT_ANY, "max_supported_vqs", "  max_supported_vqs %d", num_vqs);
>   	}
>   
> +	if (tb[VDPA_ATTR_DEV_SUPPORTED_FEATURES]) {
> +		uint64_t features;
> +
> +		features  = mnl_attr_get_u64(tb[VDPA_ATTR_DEV_SUPPORTED_FEATURES]);
> +		if (classes & BIT(VIRTIO_ID_NET))
> +			print_net_features(vdpa, features, true);
> +		else
> +			print_generic_features(vdpa, features, true);
> +	}
> +
>   	pr_out_handle_end(vdpa);
>   }
>
Eli Cohen Feb. 15, 2022, 2:46 p.m. UTC | #2
On Fri, Feb 11, 2022 at 04:43:08PM -0800, Si-Wei Liu wrote:
> 
> 
> On 2/10/2022 5:31 AM, Eli Cohen wrote:
> > When showing the available management devices, check if
> > VDPA_ATTR_DEV_SUPPORTED_FEATURES feature is available and print the
> > supported features for a management device.
> > 
> > Example:
> > $ vdpa mgmtdev show
> > auxiliary/mlx5_core.sf.1:
> >    supported_classes net
> >    max_supported_vqs 257
> >    dev_features CSUM GUEST_CSUM MTU HOST_TSO4 HOST_TSO6 STATUS CTRL_VQ MQ \
> >                 CTRL_MAC_ADDR VERSION_1 ACCESS_PLATFORM
> It'd be nice to add an example output for json pretty format.
> 
Will add

> Reviewed-by: Si-Wei Liu <si-wei.liu@oracle.com>
> 
> > 
> > Signed-off-by: Eli Cohen <elic@nvidia.com>
> > ---
> >   vdpa/include/uapi/linux/vdpa.h |  1 +
> >   vdpa/vdpa.c                    | 11 +++++++++++
> >   2 files changed, 12 insertions(+)
> > 
> > diff --git a/vdpa/include/uapi/linux/vdpa.h b/vdpa/include/uapi/linux/vdpa.h
> > index a3ebf4d4d9b8..96ccbf305d14 100644
> > --- a/vdpa/include/uapi/linux/vdpa.h
> > +++ b/vdpa/include/uapi/linux/vdpa.h
> > @@ -42,6 +42,7 @@ enum vdpa_attr {
> >   	VDPA_ATTR_DEV_NEGOTIATED_FEATURES,	/* u64 */
> >   	VDPA_ATTR_DEV_MGMTDEV_MAX_VQS,          /* u32 */
> > +	VDPA_ATTR_DEV_SUPPORTED_FEATURES,	/* u64 */
> >   	/* new attributes must be added above here */
> >   	VDPA_ATTR_MAX,
> > diff --git a/vdpa/vdpa.c b/vdpa/vdpa.c
> > index 99ee828630cc..44b2a3e9e78a 100644
> > --- a/vdpa/vdpa.c
> > +++ b/vdpa/vdpa.c
> > @@ -83,6 +83,7 @@ static const enum mnl_attr_data_type vdpa_policy[VDPA_ATTR_MAX + 1] = {
> >   	[VDPA_ATTR_DEV_MAX_VQ_SIZE] = MNL_TYPE_U16,
> >   	[VDPA_ATTR_DEV_NEGOTIATED_FEATURES] = MNL_TYPE_U64,
> >   	[VDPA_ATTR_DEV_MGMTDEV_MAX_VQS] = MNL_TYPE_U32,
> > +	[VDPA_ATTR_DEV_SUPPORTED_FEATURES] = MNL_TYPE_U64,
> >   };
> >   static int attr_cb(const struct nlattr *attr, void *data)
> > @@ -535,6 +536,16 @@ static void pr_out_mgmtdev_show(struct vdpa *vdpa, const struct nlmsghdr *nlh,
> >   		print_uint(PRINT_ANY, "max_supported_vqs", "  max_supported_vqs %d", num_vqs);
> >   	}
> > +	if (tb[VDPA_ATTR_DEV_SUPPORTED_FEATURES]) {
> > +		uint64_t features;
> > +
> > +		features  = mnl_attr_get_u64(tb[VDPA_ATTR_DEV_SUPPORTED_FEATURES]);
> > +		if (classes & BIT(VIRTIO_ID_NET))
> > +			print_net_features(vdpa, features, true);
> > +		else
> > +			print_generic_features(vdpa, features, true);
> > +	}
> > +
> >   	pr_out_handle_end(vdpa);
> >   }
>
diff mbox series

Patch

diff --git a/vdpa/include/uapi/linux/vdpa.h b/vdpa/include/uapi/linux/vdpa.h
index a3ebf4d4d9b8..96ccbf305d14 100644
--- a/vdpa/include/uapi/linux/vdpa.h
+++ b/vdpa/include/uapi/linux/vdpa.h
@@ -42,6 +42,7 @@  enum vdpa_attr {
 
 	VDPA_ATTR_DEV_NEGOTIATED_FEATURES,	/* u64 */
 	VDPA_ATTR_DEV_MGMTDEV_MAX_VQS,          /* u32 */
+	VDPA_ATTR_DEV_SUPPORTED_FEATURES,	/* u64 */
 
 	/* new attributes must be added above here */
 	VDPA_ATTR_MAX,
diff --git a/vdpa/vdpa.c b/vdpa/vdpa.c
index 99ee828630cc..44b2a3e9e78a 100644
--- a/vdpa/vdpa.c
+++ b/vdpa/vdpa.c
@@ -83,6 +83,7 @@  static const enum mnl_attr_data_type vdpa_policy[VDPA_ATTR_MAX + 1] = {
 	[VDPA_ATTR_DEV_MAX_VQ_SIZE] = MNL_TYPE_U16,
 	[VDPA_ATTR_DEV_NEGOTIATED_FEATURES] = MNL_TYPE_U64,
 	[VDPA_ATTR_DEV_MGMTDEV_MAX_VQS] = MNL_TYPE_U32,
+	[VDPA_ATTR_DEV_SUPPORTED_FEATURES] = MNL_TYPE_U64,
 };
 
 static int attr_cb(const struct nlattr *attr, void *data)
@@ -535,6 +536,16 @@  static void pr_out_mgmtdev_show(struct vdpa *vdpa, const struct nlmsghdr *nlh,
 		print_uint(PRINT_ANY, "max_supported_vqs", "  max_supported_vqs %d", num_vqs);
 	}
 
+	if (tb[VDPA_ATTR_DEV_SUPPORTED_FEATURES]) {
+		uint64_t features;
+
+		features  = mnl_attr_get_u64(tb[VDPA_ATTR_DEV_SUPPORTED_FEATURES]);
+		if (classes & BIT(VIRTIO_ID_NET))
+			print_net_features(vdpa, features, true);
+		else
+			print_generic_features(vdpa, features, true);
+	}
+
 	pr_out_handle_end(vdpa);
 }