On Mon, Oct 17, 2022 at 3:13 PM Jason Wang <jasowang@xxxxxxxxxx> wrote: > > On Fri, Oct 14, 2022 at 5:50 PM Zhu Lingshan <lingshan.zhu@xxxxxxxxx> wrote: > > > > This commit implements support for reading vdpa device > > features in iproute2. > > > > Example: > > $ vdpa dev config show vdpa0 > > vdpa0: mac 00:e8:ca:11:be:05 link up link_announce false max_vq_pairs 4 mtu 1500 > > negotiated_features MRG_RXBUF CTRL_VQ MQ VERSION_1 ACCESS_PLATFORM > > dev_features MTU MAC MRG_RXBUF CTRL_VQ MQ ANY_LAYOUT VERSION_1 ACCESS_PLATFORM > > > > Signed-off-by: Zhu Lingshan <lingshan.zhu@xxxxxxxxx> > > Note that Si Wei proposed to unify the two new attributes: https://patchew.org/linux/1665422823-18364-1-git-send-email-si-wei.liu@xxxxxxxxxx/ Thanks > > > > --- > > vdpa/vdpa.c | 15 +++++++++++++-- > > 1 file changed, 13 insertions(+), 2 deletions(-) > > > > diff --git a/vdpa/vdpa.c b/vdpa/vdpa.c > > index b73e40b4..89844e92 100644 > > --- a/vdpa/vdpa.c > > +++ b/vdpa/vdpa.c > > @@ -87,6 +87,8 @@ static const enum mnl_attr_data_type vdpa_policy[VDPA_ATTR_MAX + 1] = { > > [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, > > + [VDPA_ATTR_DEV_FEATURES] = MNL_TYPE_U64, > > + [VDPA_ATTR_VDPA_DEV_SUPPORTED_FEATURES] = MNL_TYPE_U64, > > }; > > > > static int attr_cb(const struct nlattr *attr, void *data) > > @@ -482,7 +484,7 @@ static const char * const *dev_to_feature_str[] = { > > > > #define NUM_FEATURE_BITS 64 > > > > -static void print_features(struct vdpa *vdpa, uint64_t features, bool mgmtdevf, > > +static void print_features(struct vdpa *vdpa, uint64_t features, bool devf, > > uint16_t dev_id) > > { > > const char * const *feature_strs = NULL; > > @@ -492,7 +494,7 @@ static void print_features(struct vdpa *vdpa, uint64_t features, bool mgmtdevf, > > if (dev_id < ARRAY_SIZE(dev_to_feature_str)) > > feature_strs = dev_to_feature_str[dev_id]; > > > > - if (mgmtdevf) > > + if (devf) > > pr_out_array_start(vdpa, "dev_features"); > > else > > pr_out_array_start(vdpa, "negotiated_features"); > > @@ -771,6 +773,15 @@ static void pr_out_dev_net_config(struct vdpa *vdpa, struct nlattr **tb) > > val_u64 = mnl_attr_get_u64(tb[VDPA_ATTR_DEV_NEGOTIATED_FEATURES]); > > print_features(vdpa, val_u64, false, dev_id); > > } > > + if (tb[VDPA_ATTR_VDPA_DEV_SUPPORTED_FEATURES]) { > > + uint16_t dev_id = 0; > > + > > + if (tb[VDPA_ATTR_DEV_ID]) > > + dev_id = mnl_attr_get_u32(tb[VDPA_ATTR_DEV_ID]); > > + > > + val_u64 = mnl_attr_get_u64(tb[VDPA_ATTR_VDPA_DEV_SUPPORTED_FEATURES]); > > + print_features(vdpa, val_u64, true, dev_id); > > + } > > } > > > > static void pr_out_dev_config(struct vdpa *vdpa, struct nlattr **tb) > > -- > > 2.31.1 > > _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
