+
.BI mac " MACADDR"
- specifies the mac address for the new vdpa device.
This is applicable only for the network type of vdpa device. This is optional.
@@ -127,6 +137,11 @@ vdpa dev add name foo mgmtdev vdpa_sim_net
Add the vdpa device named foo on the management device vdpa_sim_net.
.RE
.PP
+vdpa dev add name foo mgmtdev vdpa_sim_net device_features 0x300020000
+.RS 4
+Add the vdpa device named foo on the management device vdpa_sim_net with
device_features of 0x300020000
+.RE
+.PP
vdpa dev add name foo mgmtdev vdpa_sim_net mac 00:11:22:33:44:55
.RS 4
Add the vdpa device named foo on the management device vdpa_sim_net with mac
address of 00:11:22:33:44:55.
diff --git a/vdpa/include/uapi/linux/vdpa.h b/vdpa/include/uapi/linux/vdpa.h
index 94e4dad1..7c961991 100644
--- a/vdpa/include/uapi/linux/vdpa.h
+++ b/vdpa/include/uapi/linux/vdpa.h
@@ -51,6 +51,7 @@ enum vdpa_attr {
VDPA_ATTR_DEV_QUEUE_INDEX, /* u32 */
VDPA_ATTR_DEV_VENDOR_ATTR_NAME, /* string */
VDPA_ATTR_DEV_VENDOR_ATTR_VALUE, /* u64 */
+ VDPA_ATTR_DEV_FEATURES, /* u64 */
/* new attributes must be added above here */
VDPA_ATTR_MAX,
diff --git a/vdpa/vdpa.c b/vdpa/vdpa.c
index b73e40b4..d0ce5e22 100644
--- a/vdpa/vdpa.c
+++ b/vdpa/vdpa.c
@@ -27,6 +27,7 @@
#define VDPA_OPT_VDEV_MTU BIT(5)
#define VDPA_OPT_MAX_VQP BIT(6)
#define VDPA_OPT_QUEUE_INDEX BIT(7)
+#define VDPA_OPT_VDEV_FEATURES BIT(8)
struct vdpa_opts {
uint64_t present; /* flags of present items */
@@ -38,6 +39,7 @@ struct vdpa_opts {
uint16_t mtu;
uint16_t max_vqp;
uint32_t queue_idx;
+ uint64_t device_features;
};
struct vdpa {
@@ -187,6 +189,17 @@ static int vdpa_argv_u32(struct vdpa *vdpa, int argc, char
**argv,
return get_u32(result, *argv, 10);
}
+static int vdpa_argv_u64_hex(struct vdpa *vdpa, int argc, char **argv,
+ uint64_t *result)
+{
+ if (argc <= 0 || !*argv) {
+ fprintf(stderr, "number expected\n");
+ return -EINVAL;
+ }
+
+ return get_u64(result, *argv, 16);
+}
+
struct vdpa_args_metadata {
uint64_t o_flag;
const char *err_msg;
@@ -244,6 +257,10 @@ static void vdpa_opts_put(struct nlmsghdr *nlh, struct
vdpa *vdpa)
mnl_attr_put_u16(nlh, VDPA_ATTR_DEV_NET_CFG_MAX_VQP,
opts->max_vqp);
if (opts->present & VDPA_OPT_QUEUE_INDEX)
mnl_attr_put_u32(nlh, VDPA_ATTR_DEV_QUEUE_INDEX,
opts->queue_idx);
+ if (opts->present & VDPA_OPT_VDEV_FEATURES) {
+ mnl_attr_put_u64(nlh, VDPA_ATTR_DEV_FEATURES,
+ opts->device_features);
+ }
}
static int vdpa_argv_parse(struct vdpa *vdpa, int argc, char **argv,
@@ -329,6 +346,14 @@ static int vdpa_argv_parse(struct vdpa *vdpa, int argc,
char **argv,
NEXT_ARG_FWD();
o_found |= VDPA_OPT_QUEUE_INDEX;
+ } else if (!strcmp(*argv, "device_features") &&
+ (o_optional & VDPA_OPT_VDEV_FEATURES)) {
+ NEXT_ARG_FWD();
+ err = vdpa_argv_u64_hex(vdpa, argc, argv,
+ &opts->device_features);
+ if (err)
+ return err;
+ o_found |= VDPA_OPT_VDEV_FEATURES;
} else {
fprintf(stderr, "Unknown option \"%s\"\n", *argv);
return -EINVAL;
@@ -615,8 +640,9 @@ static int cmd_mgmtdev(struct vdpa *vdpa, int argc, char
**argv)
static void cmd_dev_help(void)
{
fprintf(stderr, "Usage: vdpa dev show [ DEV ]\n");
- fprintf(stderr, " vdpa dev add name NAME mgmtdev MANAGEMENTDEV [ mac
MACADDR ] [ mtu MTU ]\n");
- fprintf(stderr, " [
max_vqp MAX_VQ_PAIRS ]\n");
+ fprintf(stderr, " vdpa dev add name NAME mgmtdevMANAGEMENTDEV [
device_features DEVICE_FEATURES]\n");
+ fprintf(stderr, " [ mac
MACADDR ] [ mtu MTU ]\n");
+ fprintf(stderr, " [
max_vqp MAX_VQ_PAIRS ]\n");
fprintf(stderr, " vdpa dev del DEV\n");
fprintf(stderr, "Usage: vdpa dev config COMMAND [ OPTIONS ]\n");
fprintf(stderr, "Usage: vdpa dev vstats COMMAND\n");
@@ -708,7 +734,7 @@ static int cmd_dev_add(struct vdpa *vdpa, int argc, char
**argv)
err = vdpa_argv_parse_put(nlh, vdpa, argc, argv,
VDPA_OPT_VDEV_MGMTDEV_HANDLE |
VDPA_OPT_VDEV_NAME,
VDPA_OPT_VDEV_MAC | VDPA_OPT_VDEV_MTU |
- VDPA_OPT_MAX_VQP);
+ VDPA_OPT_MAX_VQP | VDPA_OPT_VDEV_FEATURES);
if (err)
return err;
