return devlink_port_get_from_attrs(devlink, info->attrs);
}
-#define DEVLINK_NL_FLAG_NEED_PORT BIT(0)
+struct devlink_sb {
+ struct list_head list;
+ unsigned int index;
+ u32 size;
+ u16 ingress_pools_count;
+ u16 egress_pools_count;
+ u16 ingress_tc_count;
+ u16 egress_tc_count;
+};
+
+static u16 devlink_sb_pool_count(struct devlink_sb *devlink_sb)
+{
+ return devlink_sb->ingress_pools_count + devlink_sb->egress_pools_count;
+}
+
+static struct devlink_sb *devlink_sb_get_by_index(struct devlink *devlink,
+ unsigned int sb_index)
+{
+ struct devlink_sb *devlink_sb;
+
+ list_for_each_entry(devlink_sb, &devlink->sb_list, list) {
+ if (devlink_sb->index == sb_index)
+ return devlink_sb;
+ }
+ return NULL;
+}
+
+static bool devlink_sb_index_exists(struct devlink *devlink,
+ unsigned int sb_index)
+{
+ return devlink_sb_get_by_index(devlink, sb_index);
+}
+
+static struct devlink_sb *devlink_sb_get_from_attrs(struct devlink *devlink,
+ struct nlattr **attrs)
+{
+ if (attrs[DEVLINK_ATTR_SB_INDEX]) {
+ u32 sb_index = nla_get_u32(attrs[DEVLINK_ATTR_SB_INDEX]);
+ struct devlink_sb *devlink_sb;
+
+ devlink_sb = devlink_sb_get_by_index(devlink, sb_index);
+ if (!devlink_sb)
+ return ERR_PTR(-ENODEV);
+ return devlink_sb;
+ }
+ return ERR_PTR(-EINVAL);
+}
+
+static struct devlink_sb *devlink_sb_get_from_info(struct devlink *devlink,
+ struct genl_info *info)
+{
+ return devlink_sb_get_from_attrs(devlink, info->attrs);
+}
+
+static int devlink_sb_pool_index_get_from_attrs(struct devlink_sb *devlink_sb,
+ struct nlattr **attrs,
+ u16 *p_pool_index)
+{
+ u16 val;
+
+ if (!attrs[DEVLINK_ATTR_SB_POOL_INDEX])
+ return -EINVAL;
+
+ val = nla_get_u16(attrs[DEVLINK_ATTR_SB_POOL_INDEX]);
+ if (val >= devlink_sb_pool_count(devlink_sb))
+ return -EINVAL;
+ *p_pool_index = val;
+ return 0;
+}
+
+static int devlink_sb_pool_index_get_from_info(struct devlink_sb *devlink_sb,
+ struct genl_info *info,
+ u16 *p_pool_index)
+{
+ return devlink_sb_pool_index_get_from_attrs(devlink_sb, info->attrs,
+ p_pool_index);
+}
+
+static int
+devlink_sb_pool_type_get_from_attrs(struct nlattr **attrs,
+ enum devlink_sb_pool_type *p_pool_type)
+{
+ u8 val;
+
+ if (!attrs[DEVLINK_ATTR_SB_POOL_TYPE])
+ return -EINVAL;
+
+ val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_TYPE]);
+ if (val != DEVLINK_SB_POOL_TYPE_INGRESS &&
+ val != DEVLINK_SB_POOL_TYPE_EGRESS)
+ return -EINVAL;
+ *p_pool_type = val;
+ return 0;
+}
+
+static int
+devlink_sb_pool_type_get_from_info(struct genl_info *info,
+ enum devlink_sb_pool_type *p_pool_type)
+{
+ return devlink_sb_pool_type_get_from_attrs(info->attrs, p_pool_type);
+}
+
+static int
+devlink_sb_th_type_get_from_attrs(struct nlattr **attrs,
+ enum devlink_sb_threshold_type *p_th_type)
+{
+ u8 val;
+
+ if (!attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE])
+ return -EINVAL;
+
+ val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]);
+ if (val != DEVLINK_SB_THRESHOLD_TYPE_STATIC &&
+ val != DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC)
+ return -EINVAL;
+ *p_th_type = val;
+ return 0;
+}
+
+static int
+devlink_sb_th_type_get_from_info(struct genl_info *info,
+ enum devlink_sb_threshold_type *p_th_type)
+{
+ return devlink_sb_th_type_get_from_attrs(info->attrs, p_th_type);
+}
+
+static int
+devlink_sb_tc_index_get_from_attrs(struct devlink_sb *devlink_sb,
+ struct nlattr **attrs,
+ enum devlink_sb_pool_type pool_type,
+ u16 *p_tc_index)
+{
+ u16 val;
+
+ if (!attrs[DEVLINK_ATTR_SB_TC_INDEX])
+ return -EINVAL;
+
+ val = nla_get_u16(attrs[DEVLINK_ATTR_SB_TC_INDEX]);
+ if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS &&
+ val >= devlink_sb->ingress_tc_count)
+ return -EINVAL;
+ if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS &&
+ val >= devlink_sb->egress_tc_count)
+ return -EINVAL;
+ *p_tc_index = val;
+ return 0;
+}
+
+static int
+devlink_sb_tc_index_get_from_info(struct devlink_sb *devlink_sb,
+ struct genl_info *info,
+ enum devlink_sb_pool_type pool_type,
+ u16 *p_tc_index)
+{
+ return devlink_sb_tc_index_get_from_attrs(devlink_sb, info->attrs,
+ pool_type, p_tc_index);
+}
+
+#define DEVLINK_NL_FLAG_NEED_DEVLINK BIT(0)
+#define DEVLINK_NL_FLAG_NEED_PORT BIT(1)
+#define DEVLINK_NL_FLAG_NEED_SB BIT(2)
+#define DEVLINK_NL_FLAG_LOCK_PORTS BIT(3)
+ /* port is not needed but we need to ensure they don't
+ * change in the middle of command
+ */
static int devlink_nl_pre_doit(const struct genl_ops *ops,
struct sk_buff *skb, struct genl_info *info)
mutex_unlock(&devlink_mutex);
return PTR_ERR(devlink);
}
- info->user_ptr[0] = devlink;
- if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT) {
+ if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_DEVLINK) {
+ info->user_ptr[0] = devlink;
+ } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT) {
struct devlink_port *devlink_port;
mutex_lock(&devlink_port_mutex);
mutex_unlock(&devlink_mutex);
return PTR_ERR(devlink_port);
}
- info->user_ptr[1] = devlink_port;
+ info->user_ptr[0] = devlink_port;
+ }
+ if (ops->internal_flags & DEVLINK_NL_FLAG_LOCK_PORTS) {
+ mutex_lock(&devlink_port_mutex);
+ }
+ if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_SB) {
+ struct devlink_sb *devlink_sb;
+
+ devlink_sb = devlink_sb_get_from_info(devlink, info);
+ if (IS_ERR(devlink_sb)) {
+ if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT)
+ mutex_unlock(&devlink_port_mutex);
+ mutex_unlock(&devlink_mutex);
+ return PTR_ERR(devlink_sb);
+ }
+ info->user_ptr[1] = devlink_sb;
}
return 0;
}
static void devlink_nl_post_doit(const struct genl_ops *ops,
struct sk_buff *skb, struct genl_info *info)
{
- if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT)
+ if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT ||
+ ops->internal_flags & DEVLINK_NL_FLAG_LOCK_PORTS)
mutex_unlock(&devlink_port_mutex);
mutex_unlock(&devlink_mutex);
}
static int devlink_nl_cmd_port_get_doit(struct sk_buff *skb,
struct genl_info *info)
{
- struct devlink *devlink = info->user_ptr[0];
- struct devlink_port *devlink_port = info->user_ptr[1];
+ struct devlink_port *devlink_port = info->user_ptr[0];
+ struct devlink *devlink = devlink_port->devlink;
struct sk_buff *msg;
int err;
static int devlink_nl_cmd_port_set_doit(struct sk_buff *skb,
struct genl_info *info)
{
- struct devlink *devlink = info->user_ptr[0];
- struct devlink_port *devlink_port = info->user_ptr[1];
+ struct devlink_port *devlink_port = info->user_ptr[0];
+ struct devlink *devlink = devlink_port->devlink;
int err;
if (info->attrs[DEVLINK_ATTR_PORT_TYPE]) {
return devlink_port_unsplit(devlink, port_index);
}
-static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = {
- [DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING },
- [DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING },
- [DEVLINK_ATTR_PORT_INDEX] = { .type = NLA_U32 },
- [DEVLINK_ATTR_PORT_TYPE] = { .type = NLA_U16 },
- [DEVLINK_ATTR_PORT_SPLIT_COUNT] = { .type = NLA_U32 },
-};
+static int devlink_nl_sb_fill(struct sk_buff *msg, struct devlink *devlink,
+ struct devlink_sb *devlink_sb,
+ enum devlink_command cmd, u32 portid,
+ u32 seq, int flags)
+{
+ void *hdr;
-static const struct genl_ops devlink_nl_ops[] = {
- {
- .cmd = DEVLINK_CMD_GET,
- .doit = devlink_nl_cmd_get_doit,
- .dumpit = devlink_nl_cmd_get_dumpit,
- .policy = devlink_nl_policy,
- /* can be retrieved by unprivileged users */
- },
- {
- .cmd = DEVLINK_CMD_PORT_GET,
- .doit = devlink_nl_cmd_port_get_doit,
- .dumpit = devlink_nl_cmd_port_get_dumpit,
- .policy = devlink_nl_policy,
- .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
- /* can be retrieved by unprivileged users */
- },
- {
- .cmd = DEVLINK_CMD_PORT_SET,
- .doit = devlink_nl_cmd_port_set_doit,
- .policy = devlink_nl_policy,
- .flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
- },
- {
- .cmd = DEVLINK_CMD_PORT_SPLIT,
- .doit = devlink_nl_cmd_port_split_doit,
- .policy = devlink_nl_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_PORT_UNSPLIT,
- .doit = devlink_nl_cmd_port_unsplit_doit,
- .policy = devlink_nl_policy,
- .flags = GENL_ADMIN_PERM,
- },
-};
+ hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd);
+ if (!hdr)
+ return -EMSGSIZE;
-/**
- * devlink_alloc - Allocate new devlink instance resources
- *
- * @ops: ops
- * @priv_size: size of user private data
- *
- * Allocate new devlink instance resources, including devlink index
- * and name.
- */
-struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size)
-{
- struct devlink *devlink;
+ if (devlink_nl_put_handle(msg, devlink))
+ goto nla_put_failure;
+ if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index))
+ goto nla_put_failure;
+ if (nla_put_u32(msg, DEVLINK_ATTR_SB_SIZE, devlink_sb->size))
+ goto nla_put_failure;
+ if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_POOL_COUNT,
+ devlink_sb->ingress_pools_count))
+ goto nla_put_failure;
+ if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_POOL_COUNT,
+ devlink_sb->egress_pools_count))
+ goto nla_put_failure;
+ if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_TC_COUNT,
+ devlink_sb->ingress_tc_count))
+ goto nla_put_failure;
+ if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_TC_COUNT,
+ devlink_sb->egress_tc_count))
+ goto nla_put_failure;
- devlink = kzalloc(sizeof(*devlink) + priv_size, GFP_KERNEL);
- if (!devlink)
- return NULL;
- devlink->ops = ops;
- devlink_net_set(devlink, &init_net);
- INIT_LIST_HEAD(&devlink->port_list);
- return devlink;
+ genlmsg_end(msg, hdr);
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
}
-EXPORT_SYMBOL_GPL(devlink_alloc);
-/**
- * devlink_register - Register devlink instance
- *
- * @devlink: devlink
- */
-int devlink_register(struct devlink *devlink, struct device *dev)
+static int devlink_nl_cmd_sb_get_doit(struct sk_buff *skb,
+ struct genl_info *info)
{
- mutex_lock(&devlink_mutex);
- devlink->dev = dev;
- list_add_tail(&devlink->list, &devlink_list);
- devlink_notify(devlink, DEVLINK_CMD_NEW);
- mutex_unlock(&devlink_mutex);
- return 0;
+ struct devlink *devlink = info->user_ptr[0];
+ struct devlink_sb *devlink_sb = info->user_ptr[1];
+ struct sk_buff *msg;
+ int err;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ err = devlink_nl_sb_fill(msg, devlink, devlink_sb,
+ DEVLINK_CMD_SB_NEW,
+ info->snd_portid, info->snd_seq, 0);
+ if (err) {
+ nlmsg_free(msg);
+ return err;
+ }
+
+ return genlmsg_reply(msg, info);
}
-EXPORT_SYMBOL_GPL(devlink_register);
-/**
- * devlink_unregister - Unregister devlink instance
- *
- * @devlink: devlink
- */
-void devlink_unregister(struct devlink *devlink)
+static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg,
+ struct netlink_callback *cb)
{
+ struct devlink *devlink;
+ struct devlink_sb *devlink_sb;
+ int start = cb->args[0];
+ int idx = 0;
+ int err;
+
mutex_lock(&devlink_mutex);
- devlink_notify(devlink, DEVLINK_CMD_DEL);
- list_del(&devlink->list);
+ list_for_each_entry(devlink, &devlink_list, list) {
+ if (!net_eq(devlink_net(devlink), sock_net(msg->sk)))
+ continue;
+ list_for_each_entry(devlink_sb, &devlink->sb_list, list) {
+ if (idx < start) {
+ idx++;
+ continue;
+ }
+ err = devlink_nl_sb_fill(msg, devlink, devlink_sb,
+ DEVLINK_CMD_SB_NEW,
+ NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq,
+ NLM_F_MULTI);
+ if (err)
+ goto out;
+ idx++;
+ }
+ }
+out:
mutex_unlock(&devlink_mutex);
+
+ cb->args[0] = idx;
+ return msg->len;
}
-EXPORT_SYMBOL_GPL(devlink_unregister);
-/**
- * devlink_free - Free devlink instance resources
- *
- * @devlink: devlink
- */
-void devlink_free(struct devlink *devlink)
+static int devlink_nl_sb_pool_fill(struct sk_buff *msg, struct devlink *devlink,
+ struct devlink_sb *devlink_sb,
+ u16 pool_index, enum devlink_command cmd,
+ u32 portid, u32 seq, int flags)
{
- kfree(devlink);
+ struct devlink_sb_pool_info pool_info;
+ void *hdr;
+ int err;
+
+ err = devlink->ops->sb_pool_get(devlink, devlink_sb->index,
+ pool_index, &pool_info);
+ if (err)
+ return err;
+
+ hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd);
+ if (!hdr)
+ return -EMSGSIZE;
+
+ if (devlink_nl_put_handle(msg, devlink))
+ goto nla_put_failure;
+ if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index))
+ goto nla_put_failure;
+ if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index))
+ goto nla_put_failure;
+ if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_info.pool_type))
+ goto nla_put_failure;
+ if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_SIZE, pool_info.size))
+ goto nla_put_failure;
+ if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE,
+ pool_info.threshold_type))
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
}
-EXPORT_SYMBOL_GPL(devlink_free);
-/**
- * devlink_port_register - Register devlink port
- *
- * @devlink: devlink
- * @devlink_port: devlink port
- * @port_index
- *
+static int devlink_nl_cmd_sb_pool_get_doit(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct devlink *devlink = info->user_ptr[0];
+ struct devlink_sb *devlink_sb = info->user_ptr[1];
+ struct sk_buff *msg;
+ u16 pool_index;
+ int err;
+
+ err = devlink_sb_pool_index_get_from_info(devlink_sb, info,
+ &pool_index);
+ if (err)
+ return err;
+
+ if (!devlink->ops || !devlink->ops->sb_pool_get)
+ return -EOPNOTSUPP;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ err = devlink_nl_sb_pool_fill(msg, devlink, devlink_sb, pool_index,
+ DEVLINK_CMD_SB_POOL_NEW,
+ info->snd_portid, info->snd_seq, 0);
+ if (err) {
+ nlmsg_free(msg);
+ return err;
+ }
+
+ return genlmsg_reply(msg, info);
+}
+
+static int __sb_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx,
+ struct devlink *devlink,
+ struct devlink_sb *devlink_sb,
+ u32 portid, u32 seq)
+{
+ u16 pool_count = devlink_sb_pool_count(devlink_sb);
+ u16 pool_index;
+ int err;
+
+ for (pool_index = 0; pool_index < pool_count; pool_index++) {
+ if (*p_idx < start) {
+ (*p_idx)++;
+ continue;
+ }
+ err = devlink_nl_sb_pool_fill(msg, devlink,
+ devlink_sb,
+ pool_index,
+ DEVLINK_CMD_SB_POOL_NEW,
+ portid, seq, NLM_F_MULTI);
+ if (err)
+ return err;
+ (*p_idx)++;
+ }
+ return 0;
+}
+
+static int devlink_nl_cmd_sb_pool_get_dumpit(struct sk_buff *msg,
+ struct netlink_callback *cb)
+{
+ struct devlink *devlink;
+ struct devlink_sb *devlink_sb;
+ int start = cb->args[0];
+ int idx = 0;
+ int err;
+
+ mutex_lock(&devlink_mutex);
+ list_for_each_entry(devlink, &devlink_list, list) {
+ if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) ||
+ !devlink->ops || !devlink->ops->sb_pool_get)
+ continue;
+ list_for_each_entry(devlink_sb, &devlink->sb_list, list) {
+ err = __sb_pool_get_dumpit(msg, start, &idx, devlink,
+ devlink_sb,
+ NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq);
+ if (err && err != -EOPNOTSUPP)
+ goto out;
+ }
+ }
+out:
+ mutex_unlock(&devlink_mutex);
+
+ cb->args[0] = idx;
+ return msg->len;
+}
+
+static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index,
+ u16 pool_index, u32 size,
+ enum devlink_sb_threshold_type threshold_type)
+
+{
+ const struct devlink_ops *ops = devlink->ops;
+
+ if (ops && ops->sb_pool_set)
+ return ops->sb_pool_set(devlink, sb_index, pool_index,
+ size, threshold_type);
+ return -EOPNOTSUPP;
+}
+
+static int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct devlink *devlink = info->user_ptr[0];
+ struct devlink_sb *devlink_sb = info->user_ptr[1];
+ enum devlink_sb_threshold_type threshold_type;
+ u16 pool_index;
+ u32 size;
+ int err;
+
+ err = devlink_sb_pool_index_get_from_info(devlink_sb, info,
+ &pool_index);
+ if (err)
+ return err;
+
+ err = devlink_sb_th_type_get_from_info(info, &threshold_type);
+ if (err)
+ return err;
+
+ if (!info->attrs[DEVLINK_ATTR_SB_POOL_SIZE])
+ return -EINVAL;
+
+ size = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]);
+ return devlink_sb_pool_set(devlink, devlink_sb->index,
+ pool_index, size, threshold_type);
+}
+
+static int devlink_nl_sb_port_pool_fill(struct sk_buff *msg,
+ struct devlink *devlink,
+ struct devlink_port *devlink_port,
+ struct devlink_sb *devlink_sb,
+ u16 pool_index,
+ enum devlink_command cmd,
+ u32 portid, u32 seq, int flags)
+{
+ const struct devlink_ops *ops = devlink->ops;
+ u32 threshold;
+ void *hdr;
+ int err;
+
+ err = ops->sb_port_pool_get(devlink_port, devlink_sb->index,
+ pool_index, &threshold);
+ if (err)
+ return err;
+
+ hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd);
+ if (!hdr)
+ return -EMSGSIZE;
+
+ if (devlink_nl_put_handle(msg, devlink))
+ goto nla_put_failure;
+ if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index))
+ goto nla_put_failure;
+ if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index))
+ goto nla_put_failure;
+ if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index))
+ goto nla_put_failure;
+ if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold))
+ goto nla_put_failure;
+
+ if (ops->sb_occ_port_pool_get) {
+ u32 cur;
+ u32 max;
+
+ err = ops->sb_occ_port_pool_get(devlink_port, devlink_sb->index,
+ pool_index, &cur, &max);
+ if (err && err != -EOPNOTSUPP)
+ return err;
+ if (!err) {
+ if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur))
+ goto nla_put_failure;
+ if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max))
+ goto nla_put_failure;
+ }
+ }
+
+ genlmsg_end(msg, hdr);
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+static int devlink_nl_cmd_sb_port_pool_get_doit(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct devlink_port *devlink_port = info->user_ptr[0];
+ struct devlink *devlink = devlink_port->devlink;
+ struct devlink_sb *devlink_sb = info->user_ptr[1];
+ struct sk_buff *msg;
+ u16 pool_index;
+ int err;
+
+ err = devlink_sb_pool_index_get_from_info(devlink_sb, info,
+ &pool_index);
+ if (err)
+ return err;
+
+ if (!devlink->ops || !devlink->ops->sb_port_pool_get)
+ return -EOPNOTSUPP;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ err = devlink_nl_sb_port_pool_fill(msg, devlink, devlink_port,
+ devlink_sb, pool_index,
+ DEVLINK_CMD_SB_PORT_POOL_NEW,
+ info->snd_portid, info->snd_seq, 0);
+ if (err) {
+ nlmsg_free(msg);
+ return err;
+ }
+
+ return genlmsg_reply(msg, info);
+}
+
+static int __sb_port_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx,
+ struct devlink *devlink,
+ struct devlink_sb *devlink_sb,
+ u32 portid, u32 seq)
+{
+ struct devlink_port *devlink_port;
+ u16 pool_count = devlink_sb_pool_count(devlink_sb);
+ u16 pool_index;
+ int err;
+
+ list_for_each_entry(devlink_port, &devlink->port_list, list) {
+ for (pool_index = 0; pool_index < pool_count; pool_index++) {
+ if (*p_idx < start) {
+ (*p_idx)++;
+ continue;
+ }
+ err = devlink_nl_sb_port_pool_fill(msg, devlink,
+ devlink_port,
+ devlink_sb,
+ pool_index,
+ DEVLINK_CMD_SB_PORT_POOL_NEW,
+ portid, seq,
+ NLM_F_MULTI);
+ if (err)
+ return err;
+ (*p_idx)++;
+ }
+ }
+ return 0;
+}
+
+static int devlink_nl_cmd_sb_port_pool_get_dumpit(struct sk_buff *msg,
+ struct netlink_callback *cb)
+{
+ struct devlink *devlink;
+ struct devlink_sb *devlink_sb;
+ int start = cb->args[0];
+ int idx = 0;
+ int err;
+
+ mutex_lock(&devlink_mutex);
+ mutex_lock(&devlink_port_mutex);
+ list_for_each_entry(devlink, &devlink_list, list) {
+ if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) ||
+ !devlink->ops || !devlink->ops->sb_port_pool_get)
+ continue;
+ list_for_each_entry(devlink_sb, &devlink->sb_list, list) {
+ err = __sb_port_pool_get_dumpit(msg, start, &idx,
+ devlink, devlink_sb,
+ NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq);
+ if (err && err != -EOPNOTSUPP)
+ goto out;
+ }
+ }
+out:
+ mutex_unlock(&devlink_port_mutex);
+ mutex_unlock(&devlink_mutex);
+
+ cb->args[0] = idx;
+ return msg->len;
+}
+
+static int devlink_sb_port_pool_set(struct devlink_port *devlink_port,
+ unsigned int sb_index, u16 pool_index,
+ u32 threshold)
+
+{
+ const struct devlink_ops *ops = devlink_port->devlink->ops;
+
+ if (ops && ops->sb_port_pool_set)
+ return ops->sb_port_pool_set(devlink_port, sb_index,
+ pool_index, threshold);
+ return -EOPNOTSUPP;
+}
+
+static int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct devlink_port *devlink_port = info->user_ptr[0];
+ struct devlink_sb *devlink_sb = info->user_ptr[1];
+ u16 pool_index;
+ u32 threshold;
+ int err;
+
+ err = devlink_sb_pool_index_get_from_info(devlink_sb, info,
+ &pool_index);
+ if (err)
+ return err;
+
+ if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD])
+ return -EINVAL;
+
+ threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]);
+ return devlink_sb_port_pool_set(devlink_port, devlink_sb->index,
+ pool_index, threshold);
+}
+
+static int
+devlink_nl_sb_tc_pool_bind_fill(struct sk_buff *msg, struct devlink *devlink,
+ struct devlink_port *devlink_port,
+ struct devlink_sb *devlink_sb, u16 tc_index,
+ enum devlink_sb_pool_type pool_type,
+ enum devlink_command cmd,
+ u32 portid, u32 seq, int flags)
+{
+ const struct devlink_ops *ops = devlink->ops;
+ u16 pool_index;
+ u32 threshold;
+ void *hdr;
+ int err;
+
+ err = ops->sb_tc_pool_bind_get(devlink_port, devlink_sb->index,
+ tc_index, pool_type,
+ &pool_index, &threshold);
+ if (err)
+ return err;
+
+ hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd);
+ if (!hdr)
+ return -EMSGSIZE;
+
+ if (devlink_nl_put_handle(msg, devlink))
+ goto nla_put_failure;
+ if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index))
+ goto nla_put_failure;
+ if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index))
+ goto nla_put_failure;
+ if (nla_put_u16(msg, DEVLINK_ATTR_SB_TC_INDEX, tc_index))
+ goto nla_put_failure;
+ if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_type))
+ goto nla_put_failure;
+ if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index))
+ goto nla_put_failure;
+ if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold))
+ goto nla_put_failure;
+
+ if (ops->sb_occ_tc_port_bind_get) {
+ u32 cur;
+ u32 max;
+
+ err = ops->sb_occ_tc_port_bind_get(devlink_port,
+ devlink_sb->index,
+ tc_index, pool_type,
+ &cur, &max);
+ if (err && err != -EOPNOTSUPP)
+ return err;
+ if (!err) {
+ if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur))
+ goto nla_put_failure;
+ if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max))
+ goto nla_put_failure;
+ }
+ }
+
+ genlmsg_end(msg, hdr);
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+static int devlink_nl_cmd_sb_tc_pool_bind_get_doit(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct devlink_port *devlink_port = info->user_ptr[0];
+ struct devlink *devlink = devlink_port->devlink;
+ struct devlink_sb *devlink_sb = info->user_ptr[1];
+ struct sk_buff *msg;
+ enum devlink_sb_pool_type pool_type;
+ u16 tc_index;
+ int err;
+
+ err = devlink_sb_pool_type_get_from_info(info, &pool_type);
+ if (err)
+ return err;
+
+ err = devlink_sb_tc_index_get_from_info(devlink_sb, info,
+ pool_type, &tc_index);
+ if (err)
+ return err;
+
+ if (!devlink->ops || !devlink->ops->sb_tc_pool_bind_get)
+ return -EOPNOTSUPP;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, devlink_port,
+ devlink_sb, tc_index, pool_type,
+ DEVLINK_CMD_SB_TC_POOL_BIND_NEW,
+ info->snd_portid,
+ info->snd_seq, 0);
+ if (err) {
+ nlmsg_free(msg);
+ return err;
+ }
+
+ return genlmsg_reply(msg, info);
+}
+
+static int __sb_tc_pool_bind_get_dumpit(struct sk_buff *msg,
+ int start, int *p_idx,
+ struct devlink *devlink,
+ struct devlink_sb *devlink_sb,
+ u32 portid, u32 seq)
+{
+ struct devlink_port *devlink_port;
+ u16 tc_index;
+ int err;
+
+ list_for_each_entry(devlink_port, &devlink->port_list, list) {
+ for (tc_index = 0;
+ tc_index < devlink_sb->ingress_tc_count; tc_index++) {
+ if (*p_idx < start) {
+ (*p_idx)++;
+ continue;
+ }
+ err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink,
+ devlink_port,
+ devlink_sb,
+ tc_index,
+ DEVLINK_SB_POOL_TYPE_INGRESS,
+ DEVLINK_CMD_SB_TC_POOL_BIND_NEW,
+ portid, seq,
+ NLM_F_MULTI);
+ if (err)
+ return err;
+ (*p_idx)++;
+ }
+ for (tc_index = 0;
+ tc_index < devlink_sb->egress_tc_count; tc_index++) {
+ if (*p_idx < start) {
+ (*p_idx)++;
+ continue;
+ }
+ err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink,
+ devlink_port,
+ devlink_sb,
+ tc_index,
+ DEVLINK_SB_POOL_TYPE_EGRESS,
+ DEVLINK_CMD_SB_TC_POOL_BIND_NEW,
+ portid, seq,
+ NLM_F_MULTI);
+ if (err)
+ return err;
+ (*p_idx)++;
+ }
+ }
+ return 0;
+}
+
+static int
+devlink_nl_cmd_sb_tc_pool_bind_get_dumpit(struct sk_buff *msg,
+ struct netlink_callback *cb)
+{
+ struct devlink *devlink;
+ struct devlink_sb *devlink_sb;
+ int start = cb->args[0];
+ int idx = 0;
+ int err;
+
+ mutex_lock(&devlink_mutex);
+ mutex_lock(&devlink_port_mutex);
+ list_for_each_entry(devlink, &devlink_list, list) {
+ if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) ||
+ !devlink->ops || !devlink->ops->sb_tc_pool_bind_get)
+ continue;
+ list_for_each_entry(devlink_sb, &devlink->sb_list, list) {
+ err = __sb_tc_pool_bind_get_dumpit(msg, start, &idx,
+ devlink,
+ devlink_sb,
+ NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq);
+ if (err && err != -EOPNOTSUPP)
+ goto out;
+ }
+ }
+out:
+ mutex_unlock(&devlink_port_mutex);
+ mutex_unlock(&devlink_mutex);
+
+ cb->args[0] = idx;
+ return msg->len;
+}
+
+static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port,
+ unsigned int sb_index, u16 tc_index,
+ enum devlink_sb_pool_type pool_type,
+ u16 pool_index, u32 threshold)
+
+{
+ const struct devlink_ops *ops = devlink_port->devlink->ops;
+
+ if (ops && ops->sb_tc_pool_bind_set)
+ return ops->sb_tc_pool_bind_set(devlink_port, sb_index,
+ tc_index, pool_type,
+ pool_index, threshold);
+ return -EOPNOTSUPP;
+}
+
+static int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct devlink_port *devlink_port = info->user_ptr[0];
+ struct devlink_sb *devlink_sb = info->user_ptr[1];
+ enum devlink_sb_pool_type pool_type;
+ u16 tc_index;
+ u16 pool_index;
+ u32 threshold;
+ int err;
+
+ err = devlink_sb_pool_type_get_from_info(info, &pool_type);
+ if (err)
+ return err;
+
+ err = devlink_sb_tc_index_get_from_info(devlink_sb, info,
+ pool_type, &tc_index);
+ if (err)
+ return err;
+
+ err = devlink_sb_pool_index_get_from_info(devlink_sb, info,
+ &pool_index);
+ if (err)
+ return err;
+
+ if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD])
+ return -EINVAL;
+
+ threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]);
+ return devlink_sb_tc_pool_bind_set(devlink_port, devlink_sb->index,
+ tc_index, pool_type,
+ pool_index, threshold);
+}
+
+static int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct devlink *devlink = info->user_ptr[0];
+ struct devlink_sb *devlink_sb = info->user_ptr[1];
+ const struct devlink_ops *ops = devlink->ops;
+
+ if (ops && ops->sb_occ_snapshot)
+ return ops->sb_occ_snapshot(devlink, devlink_sb->index);
+ return -EOPNOTSUPP;
+}
+
+static int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct devlink *devlink = info->user_ptr[0];
+ struct devlink_sb *devlink_sb = info->user_ptr[1];
+ const struct devlink_ops *ops = devlink->ops;
+
+ if (ops && ops->sb_occ_max_clear)
+ return ops->sb_occ_max_clear(devlink, devlink_sb->index);
+ return -EOPNOTSUPP;
+}
+
+static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = {
+ [DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING },
+ [DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING },
+ [DEVLINK_ATTR_PORT_INDEX] = { .type = NLA_U32 },
+ [DEVLINK_ATTR_PORT_TYPE] = { .type = NLA_U16 },
+ [DEVLINK_ATTR_PORT_SPLIT_COUNT] = { .type = NLA_U32 },
+ [DEVLINK_ATTR_SB_INDEX] = { .type = NLA_U32 },
+ [DEVLINK_ATTR_SB_POOL_INDEX] = { .type = NLA_U16 },
+ [DEVLINK_ATTR_SB_POOL_TYPE] = { .type = NLA_U8 },
+ [DEVLINK_ATTR_SB_POOL_SIZE] = { .type = NLA_U32 },
+ [DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE] = { .type = NLA_U8 },
+ [DEVLINK_ATTR_SB_THRESHOLD] = { .type = NLA_U32 },
+ [DEVLINK_ATTR_SB_TC_INDEX] = { .type = NLA_U16 },
+};
+
+static const struct genl_ops devlink_nl_ops[] = {
+ {
+ .cmd = DEVLINK_CMD_GET,
+ .doit = devlink_nl_cmd_get_doit,
+ .dumpit = devlink_nl_cmd_get_dumpit,
+ .policy = devlink_nl_policy,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = DEVLINK_CMD_PORT_GET,
+ .doit = devlink_nl_cmd_port_get_doit,
+ .dumpit = devlink_nl_cmd_port_get_dumpit,
+ .policy = devlink_nl_policy,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = DEVLINK_CMD_PORT_SET,
+ .doit = devlink_nl_cmd_port_set_doit,
+ .policy = devlink_nl_policy,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_PORT_SPLIT,
+ .doit = devlink_nl_cmd_port_split_doit,
+ .policy = devlink_nl_policy,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
+ },
+ {
+ .cmd = DEVLINK_CMD_PORT_UNSPLIT,
+ .doit = devlink_nl_cmd_port_unsplit_doit,
+ .policy = devlink_nl_policy,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_GET,
+ .doit = devlink_nl_cmd_sb_get_doit,
+ .dumpit = devlink_nl_cmd_sb_get_dumpit,
+ .policy = devlink_nl_policy,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
+ DEVLINK_NL_FLAG_NEED_SB,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_POOL_GET,
+ .doit = devlink_nl_cmd_sb_pool_get_doit,
+ .dumpit = devlink_nl_cmd_sb_pool_get_dumpit,
+ .policy = devlink_nl_policy,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
+ DEVLINK_NL_FLAG_NEED_SB,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_POOL_SET,
+ .doit = devlink_nl_cmd_sb_pool_set_doit,
+ .policy = devlink_nl_policy,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
+ DEVLINK_NL_FLAG_NEED_SB,
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_PORT_POOL_GET,
+ .doit = devlink_nl_cmd_sb_port_pool_get_doit,
+ .dumpit = devlink_nl_cmd_sb_port_pool_get_dumpit,
+ .policy = devlink_nl_policy,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT |
+ DEVLINK_NL_FLAG_NEED_SB,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_PORT_POOL_SET,
+ .doit = devlink_nl_cmd_sb_port_pool_set_doit,
+ .policy = devlink_nl_policy,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT |
+ DEVLINK_NL_FLAG_NEED_SB,
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_GET,
+ .doit = devlink_nl_cmd_sb_tc_pool_bind_get_doit,
+ .dumpit = devlink_nl_cmd_sb_tc_pool_bind_get_dumpit,
+ .policy = devlink_nl_policy,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT |
+ DEVLINK_NL_FLAG_NEED_SB,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET,
+ .doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit,
+ .policy = devlink_nl_policy,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT |
+ DEVLINK_NL_FLAG_NEED_SB,
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT,
+ .doit = devlink_nl_cmd_sb_occ_snapshot_doit,
+ .policy = devlink_nl_policy,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
+ DEVLINK_NL_FLAG_NEED_SB |
+ DEVLINK_NL_FLAG_LOCK_PORTS,
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR,
+ .doit = devlink_nl_cmd_sb_occ_max_clear_doit,
+ .policy = devlink_nl_policy,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
+ DEVLINK_NL_FLAG_NEED_SB |
+ DEVLINK_NL_FLAG_LOCK_PORTS,
+ },
+};
+
+/**
+ * devlink_alloc - Allocate new devlink instance resources
+ *
+ * @ops: ops
+ * @priv_size: size of user private data
+ *
+ * Allocate new devlink instance resources, including devlink index
+ * and name.
+ */
+struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size)
+{
+ struct devlink *devlink;
+
+ devlink = kzalloc(sizeof(*devlink) + priv_size, GFP_KERNEL);
+ if (!devlink)
+ return NULL;
+ devlink->ops = ops;
+ devlink_net_set(devlink, &init_net);
+ INIT_LIST_HEAD(&devlink->port_list);
+ INIT_LIST_HEAD(&devlink->sb_list);
+ return devlink;
+}
+EXPORT_SYMBOL_GPL(devlink_alloc);
+
+/**
+ * devlink_register - Register devlink instance
+ *
+ * @devlink: devlink
+ */
+int devlink_register(struct devlink *devlink, struct device *dev)
+{
+ mutex_lock(&devlink_mutex);
+ devlink->dev = dev;
+ list_add_tail(&devlink->list, &devlink_list);
+ devlink_notify(devlink, DEVLINK_CMD_NEW);
+ mutex_unlock(&devlink_mutex);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(devlink_register);
+
+/**
+ * devlink_unregister - Unregister devlink instance
+ *
+ * @devlink: devlink
+ */
+void devlink_unregister(struct devlink *devlink)
+{
+ mutex_lock(&devlink_mutex);
+ devlink_notify(devlink, DEVLINK_CMD_DEL);
+ list_del(&devlink->list);
+ mutex_unlock(&devlink_mutex);
+}
+EXPORT_SYMBOL_GPL(devlink_unregister);
+
+/**
+ * devlink_free - Free devlink instance resources
+ *
+ * @devlink: devlink
+ */
+void devlink_free(struct devlink *devlink)
+{
+ kfree(devlink);
+}
+EXPORT_SYMBOL_GPL(devlink_free);
+
+/**
+ * devlink_port_register - Register devlink port
+ *
+ * @devlink: devlink
+ * @devlink_port: devlink port
+ * @port_index
+ *
* Register devlink port with provided port index. User can use
* any indexing, even hw-related one. devlink_port structure
* is convenient to be embedded inside user driver private structure.
}
devlink_port->devlink = devlink;
devlink_port->index = port_index;
- devlink_port->type = DEVLINK_PORT_TYPE_NOTSET;
devlink_port->registered = true;
list_add_tail(&devlink_port->list, &devlink->port_list);
mutex_unlock(&devlink_port_mutex);
}
EXPORT_SYMBOL_GPL(devlink_port_split_set);
+int devlink_sb_register(struct devlink *devlink, unsigned int sb_index,
+ u32 size, u16 ingress_pools_count,
+ u16 egress_pools_count, u16 ingress_tc_count,
+ u16 egress_tc_count)
+{
+ struct devlink_sb *devlink_sb;
+ int err = 0;
+
+ mutex_lock(&devlink_mutex);
+ if (devlink_sb_index_exists(devlink, sb_index)) {
+ err = -EEXIST;
+ goto unlock;
+ }
+
+ devlink_sb = kzalloc(sizeof(*devlink_sb), GFP_KERNEL);
+ if (!devlink_sb) {
+ err = -ENOMEM;
+ goto unlock;
+ }
+ devlink_sb->index = sb_index;
+ devlink_sb->size = size;
+ devlink_sb->ingress_pools_count = ingress_pools_count;
+ devlink_sb->egress_pools_count = egress_pools_count;
+ devlink_sb->ingress_tc_count = ingress_tc_count;
+ devlink_sb->egress_tc_count = egress_tc_count;
+ list_add_tail(&devlink_sb->list, &devlink->sb_list);
+unlock:
+ mutex_unlock(&devlink_mutex);
+ return err;
+}
+EXPORT_SYMBOL_GPL(devlink_sb_register);
+
+void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index)
+{
+ struct devlink_sb *devlink_sb;
+
+ mutex_lock(&devlink_mutex);
+ devlink_sb = devlink_sb_get_by_index(devlink, sb_index);
+ WARN_ON(!devlink_sb);
+ list_del(&devlink_sb->list);
+ mutex_unlock(&devlink_mutex);
+ kfree(devlink_sb);
+}
+EXPORT_SYMBOL_GPL(devlink_sb_unregister);
+
static int __init devlink_module_init(void)
{
return genl_register_family_with_ops_groups(&devlink_nl_family,
projects / cascardo / linux.git / blobdiff