Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:

 1) Significantly shrink the core networking routing structures. Result
    of http://vger.kernel.org/~davem/seoul2017_netdev_keynote.pdf

 2) Add netdevsim driver for testing various offloads, from Jakub
    Kicinski.

 3) Support cross-chip FDB operations in DSA, from Vivien Didelot.

 4) Add a 2nd listener hash table for TCP, similar to what was done for
    UDP. From Martin KaFai Lau.

 5) Add eBPF based queue selection to tun, from Jason Wang.

 6) Lockless qdisc support, from John Fastabend.

 7) SCTP stream interleave support, from Xin Long.

 8) Smoother TCP receive autotuning, from Eric Dumazet.

 9) Lots of erspan tunneling enhancements, from William Tu.

10) Add true function call support to BPF, from Alexei Starovoitov.

11) Add explicit support for GRO HW offloading, from Michael Chan.

12) Support extack generation in more netlink subsystems. From Alexander
    Aring, Quentin Monnet, and Jakub Kicinski.

13) Add 1000BaseX, flow control, and EEE support to mvneta driver. From
    Russell King.

14) Add flow table abstraction to netfilter, from Pablo Neira Ayuso.

15) Many improvements and simplifications to the NFP driver bpf JIT,
    from Jakub Kicinski.

16) Support for ipv6 non-equal cost multipath routing, from Ido
    Schimmel.

17) Add resource abstration to devlink, from Arkadi Sharshevsky.

18) Packet scheduler classifier shared filter block support, from Jiri
    Pirko.

19) Avoid locking in act_csum, from Davide Caratti.

20) devinet_ioctl() simplifications from Al viro.

21) More TCP bpf improvements from Lawrence Brakmo.

22) Add support for onlink ipv6 route flag, similar to ipv4, from David
    Ahern.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1925 commits)
  tls: Add support for encryption using async offload accelerator
  ip6mr: fix stale iterator
  net/sched: kconfig: Remove blank help texts
  openvswitch: meter: Use 64-bit arithmetic instead of 32-bit
  tcp_nv: fix potential integer overflow in tcpnv_acked
  r8169: fix RTL8168EP take too long to complete driver initialization.
  qmi_wwan: Add support for Quectel EP06
  rtnetlink: enable IFLA_IF_NETNSID for RTM_NEWLINK
  ipmr: Fix ptrdiff_t print formatting
  ibmvnic: Wait for device response when changing MAC
  qlcnic: fix deadlock bug
  tcp: release sk_frag.page in tcp_disconnect
  ipv4: Get the address of interface correctly.
  net_sched: gen_estimator: fix lockdep splat
  net: macb: Handle HRESP error
  net/mlx5e: IPoIB, Fix copy-paste bug in flow steering refactoring
  ipv6: addrconf: break critical section in addrconf_verify_rtnl()
  ipv6: change route cache aging logic
  i40e/i40evf: Update DESC_NEEDED value to reflect larger value
  bnxt_en: cleanup DIM work on device shutdown
  ...

1 files changed, 537 insertions, 59 deletions

diff --git a/net/core/devlink.c b/net/core/devlink.c
index 7d430c1..18d385e 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -92,12 +92,6 @@ static LIST_HEAD(devlink_list);
  */
 static DEFINE_MUTEX(devlink_mutex);
 
-/* devlink_port_mutex
- *
- * Shared lock to guard lists of ports in all devlink devices.
- */
-static DEFINE_MUTEX(devlink_port_mutex);
-
 static struct net *devlink_net(const struct devlink *devlink)
 {
 	return read_pnet(&devlink->_net);
@@ -335,15 +329,18 @@ devlink_sb_tc_index_get_from_info(struct devlink_sb *devlink_sb,
 #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
-	 */
+
+/* The per devlink instance lock is taken by default in the pre-doit
+ * operation, yet several commands do not require this. The global
+ * devlink lock is taken and protects from disruption by user-calls.
+ */
+#define DEVLINK_NL_FLAG_NO_LOCK		BIT(3)
 
 static int devlink_nl_pre_doit(const struct genl_ops *ops,
 			       struct sk_buff *skb, struct genl_info *info)
 {
 	struct devlink *devlink;
+	int err;
 
 	mutex_lock(&devlink_mutex);
 	devlink = devlink_get_from_info(info);
@@ -351,44 +348,47 @@ static int devlink_nl_pre_doit(const struct genl_ops *ops,
 		mutex_unlock(&devlink_mutex);
 		return PTR_ERR(devlink);
 	}
+	if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK)
+		mutex_lock(&devlink->lock);
 	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);
 		devlink_port = devlink_port_get_from_info(devlink, info);
 		if (IS_ERR(devlink_port)) {
-			mutex_unlock(&devlink_port_mutex);
-			mutex_unlock(&devlink_mutex);
-			return PTR_ERR(devlink_port);
+			err = PTR_ERR(devlink_port);
+			goto unlock;
 		}
 		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);
+			err = PTR_ERR(devlink_sb);
+			goto unlock;
 		}
 		info->user_ptr[1] = devlink_sb;
 	}
 	return 0;
+
+unlock:
+	if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK)
+		mutex_unlock(&devlink->lock);
+	mutex_unlock(&devlink_mutex);
+	return err;
 }
 
 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 ||
-	    ops->internal_flags & DEVLINK_NL_FLAG_LOCK_PORTS)
-		mutex_unlock(&devlink_port_mutex);
+	struct devlink *devlink;
+
+	devlink = devlink_get_from_info(info);
+	if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK)
+		mutex_unlock(&devlink->lock);
 	mutex_unlock(&devlink_mutex);
 }
 
@@ -614,10 +614,10 @@ static int devlink_nl_cmd_port_get_dumpit(struct sk_buff *msg,
 	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)))
 			continue;
+		mutex_lock(&devlink->lock);
 		list_for_each_entry(devlink_port, &devlink->port_list, list) {
 			if (idx < start) {
 				idx++;
@@ -628,13 +628,15 @@ static int devlink_nl_cmd_port_get_dumpit(struct sk_buff *msg,
 						   NETLINK_CB(cb->skb).portid,
 						   cb->nlh->nlmsg_seq,
 						   NLM_F_MULTI);
-			if (err)
+			if (err) {
+				mutex_unlock(&devlink->lock);
 				goto out;
+			}
 			idx++;
 		}
+		mutex_unlock(&devlink->lock);
 	}
 out:
-	mutex_unlock(&devlink_port_mutex);
 	mutex_unlock(&devlink_mutex);
 
 	cb->args[0] = idx;
@@ -801,6 +803,7 @@ static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg,
 	list_for_each_entry(devlink, &devlink_list, list) {
 		if (!net_eq(devlink_net(devlink), sock_net(msg->sk)))
 			continue;
+		mutex_lock(&devlink->lock);
 		list_for_each_entry(devlink_sb, &devlink->sb_list, list) {
 			if (idx < start) {
 				idx++;
@@ -811,10 +814,13 @@ static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg,
 						 NETLINK_CB(cb->skb).portid,
 						 cb->nlh->nlmsg_seq,
 						 NLM_F_MULTI);
-			if (err)
+			if (err) {
+				mutex_unlock(&devlink->lock);
 				goto out;
+			}
 			idx++;
 		}
+		mutex_unlock(&devlink->lock);
 	}
 out:
 	mutex_unlock(&devlink_mutex);
@@ -935,14 +941,18 @@ static int devlink_nl_cmd_sb_pool_get_dumpit(struct sk_buff *msg,
 		if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) ||
 		    !devlink->ops || !devlink->ops->sb_pool_get)
 			continue;
+		mutex_lock(&devlink->lock);
 		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)
+			if (err && err != -EOPNOTSUPP) {
+				mutex_unlock(&devlink->lock);
 				goto out;
+			}
 		}
+		mutex_unlock(&devlink->lock);
 	}
 out:
 	mutex_unlock(&devlink_mutex);
@@ -1123,22 +1133,24 @@ static int devlink_nl_cmd_sb_port_pool_get_dumpit(struct sk_buff *msg,
 	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;
+		mutex_lock(&devlink->lock);
 		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)
+			if (err && err != -EOPNOTSUPP) {
+				mutex_unlock(&devlink->lock);
 				goto out;
+			}
 		}
+		mutex_unlock(&devlink->lock);
 	}
 out:
-	mutex_unlock(&devlink_port_mutex);
 	mutex_unlock(&devlink_mutex);
 
 	cb->args[0] = idx;
@@ -1347,23 +1359,26 @@ devlink_nl_cmd_sb_tc_pool_bind_get_dumpit(struct sk_buff *msg,
 	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;
+
+		mutex_lock(&devlink->lock);
 		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)
+			if (err && err != -EOPNOTSUPP) {
+				mutex_unlock(&devlink->lock);
 				goto out;
+			}
 		}
+		mutex_unlock(&devlink->lock);
 	}
 out:
-	mutex_unlock(&devlink_port_mutex);
 	mutex_unlock(&devlink_mutex);
 
 	cb->args[0] = idx;
@@ -1679,6 +1694,12 @@ static int devlink_dpipe_table_put(struct sk_buff *skb,
 		       table->counters_enabled))
 		goto nla_put_failure;
 
+	if (table->resource_valid) {
+		nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID,
+				  table->resource_id, DEVLINK_ATTR_PAD);
+		nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS,
+				  table->resource_units, DEVLINK_ATTR_PAD);
+	}
 	if (devlink_dpipe_matches_put(table, skb))
 		goto nla_put_failure;
 
@@ -2273,6 +2294,273 @@ static int devlink_nl_cmd_dpipe_table_counters_set(struct sk_buff *skb,
 						counters_enable);
 }
 
+static struct devlink_resource *
+devlink_resource_find(struct devlink *devlink,
+		      struct devlink_resource *resource, u64 resource_id)
+{
+	struct list_head *resource_list;
+
+	if (resource)
+		resource_list = &resource->resource_list;
+	else
+		resource_list = &devlink->resource_list;
+
+	list_for_each_entry(resource, resource_list, list) {
+		struct devlink_resource *child_resource;
+
+		if (resource->id == resource_id)
+			return resource;
+
+		child_resource = devlink_resource_find(devlink, resource,
+						       resource_id);
+		if (child_resource)
+			return child_resource;
+	}
+	return NULL;
+}
+
+static void
+devlink_resource_validate_children(struct devlink_resource *resource)
+{
+	struct devlink_resource *child_resource;
+	bool size_valid = true;
+	u64 parts_size = 0;
+
+	if (list_empty(&resource->resource_list))
+		goto out;
+
+	list_for_each_entry(child_resource, &resource->resource_list, list)
+		parts_size += child_resource->size_new;
+
+	if (parts_size > resource->size)
+		size_valid = false;
+out:
+	resource->size_valid = size_valid;
+}
+
+static int devlink_nl_cmd_resource_set(struct sk_buff *skb,
+				       struct genl_info *info)
+{
+	struct devlink *devlink = info->user_ptr[0];
+	struct devlink_resource *resource;
+	u64 resource_id;
+	u64 size;
+	int err;
+
+	if (!info->attrs[DEVLINK_ATTR_RESOURCE_ID] ||
+	    !info->attrs[DEVLINK_ATTR_RESOURCE_SIZE])
+		return -EINVAL;
+	resource_id = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_ID]);
+
+	resource = devlink_resource_find(devlink, NULL, resource_id);
+	if (!resource)
+		return -EINVAL;
+
+	if (!resource->resource_ops->size_validate)
+		return -EINVAL;
+
+	size = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]);
+	err = resource->resource_ops->size_validate(devlink, size,
+						    info->extack);
+	if (err)
+		return err;
+
+	resource->size_new = size;
+	devlink_resource_validate_children(resource);
+	if (resource->parent)
+		devlink_resource_validate_children(resource->parent);
+	return 0;
+}
+
+static void
+devlink_resource_size_params_put(struct devlink_resource *resource,
+				 struct sk_buff *skb)
+{
+	struct devlink_resource_size_params *size_params;
+
+	size_params = resource->size_params;
+	nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_GRAN,
+			  size_params->size_granularity, DEVLINK_ATTR_PAD);
+	nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MAX,
+			  size_params->size_max, DEVLINK_ATTR_PAD);
+	nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MIN,
+			  size_params->size_min, DEVLINK_ATTR_PAD);
+	nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_UNIT, size_params->unit);
+}
+
+static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb,
+				struct devlink_resource *resource)
+{
+	struct devlink_resource *child_resource;
+	struct nlattr *child_resource_attr;
+	struct nlattr *resource_attr;
+
+	resource_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE);
+	if (!resource_attr)
+		return -EMSGSIZE;
+
+	if (nla_put_string(skb, DEVLINK_ATTR_RESOURCE_NAME, resource->name) ||
+	    nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE, resource->size,
+			      DEVLINK_ATTR_PAD) ||
+	    nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_ID, resource->id,
+			      DEVLINK_ATTR_PAD))
+		goto nla_put_failure;
+	if (resource->size != resource->size_new)
+		nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_NEW,
+				  resource->size_new, DEVLINK_ATTR_PAD);
+	if (resource->resource_ops && resource->resource_ops->occ_get)
+		nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_OCC,
+				  resource->resource_ops->occ_get(devlink),
+				  DEVLINK_ATTR_PAD);
+	devlink_resource_size_params_put(resource, skb);
+	if (list_empty(&resource->resource_list))
+		goto out;
+
+	if (nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_SIZE_VALID,
+		       resource->size_valid))
+		goto nla_put_failure;
+
+	child_resource_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE_LIST);
+	if (!child_resource_attr)
+		goto nla_put_failure;
+
+	list_for_each_entry(child_resource, &resource->resource_list, list) {
+		if (devlink_resource_put(devlink, skb, child_resource))
+			goto resource_put_failure;
+	}
+
+	nla_nest_end(skb, child_resource_attr);
+out:
+	nla_nest_end(skb, resource_attr);
+	return 0;
+
+resource_put_failure:
+	nla_nest_cancel(skb, child_resource_attr);
+nla_put_failure:
+	nla_nest_cancel(skb, resource_attr);
+	return -EMSGSIZE;
+}
+
+static int devlink_resource_fill(struct genl_info *info,
+				 enum devlink_command cmd, int flags)
+{
+	struct devlink *devlink = info->user_ptr[0];
+	struct devlink_resource *resource;
+	struct nlattr *resources_attr;
+	struct sk_buff *skb = NULL;
+	struct nlmsghdr *nlh;
+	bool incomplete;
+	void *hdr;
+	int i;
+	int err;
+
+	resource = list_first_entry(&devlink->resource_list,
+				    struct devlink_resource, list);
+start_again:
+	err = devlink_dpipe_send_and_alloc_skb(&skb, info);
+	if (err)
+		return err;
+
+	hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq,
+			  &devlink_nl_family, NLM_F_MULTI, cmd);
+	if (!hdr) {
+		nlmsg_free(skb);
+		return -EMSGSIZE;
+	}
+
+	if (devlink_nl_put_handle(skb, devlink))
+		goto nla_put_failure;
+
+	resources_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE_LIST);
+	if (!resources_attr)
+		goto nla_put_failure;
+
+	incomplete = false;
+	i = 0;
+	list_for_each_entry_from(resource, &devlink->resource_list, list) {
+		err = devlink_resource_put(devlink, skb, resource);
+		if (err) {
+			if (!i)
+				goto err_resource_put;
+			incomplete = true;
+			break;
+		}
+		i++;
+	}
+	nla_nest_end(skb, resources_attr);
+	genlmsg_end(skb, hdr);
+	if (incomplete)
+		goto start_again;
+send_done:
+	nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq,
+			NLMSG_DONE, 0, flags | NLM_F_MULTI);
+	if (!nlh) {
+		err = devlink_dpipe_send_and_alloc_skb(&skb, info);
+		if (err)
+			goto err_skb_send_alloc;
+		goto send_done;
+	}
+	return genlmsg_reply(skb, info);
+
+nla_put_failure:
+	err = -EMSGSIZE;
+err_resource_put:
+err_skb_send_alloc:
+	genlmsg_cancel(skb, hdr);
+	nlmsg_free(skb);
+	return err;
+}
+
+static int devlink_nl_cmd_resource_dump(struct sk_buff *skb,
+					struct genl_info *info)
+{
+	struct devlink *devlink = info->user_ptr[0];
+
+	if (list_empty(&devlink->resource_list))
+		return -EOPNOTSUPP;
+
+	return devlink_resource_fill(info, DEVLINK_CMD_RESOURCE_DUMP, 0);
+}
+
+static int
+devlink_resources_validate(struct devlink *devlink,
+			   struct devlink_resource *resource,
+			   struct genl_info *info)
+{
+	struct list_head *resource_list;
+	int err = 0;
+
+	if (resource)
+		resource_list = &resource->resource_list;
+	else
+		resource_list = &devlink->resource_list;
+
+	list_for_each_entry(resource, resource_list, list) {
+		if (!resource->size_valid)
+			return -EINVAL;
+		err = devlink_resources_validate(devlink, resource, info);
+		if (err)
+			return err;
+	}
+	return err;
+}
+
+static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info)
+{
+	struct devlink *devlink = info->user_ptr[0];
+	int err;
+
+	if (!devlink->ops->reload)
+		return -EOPNOTSUPP;
+
+	err = devlink_resources_validate(devlink, NULL, info);
+	if (err) {
+		NL_SET_ERR_MSG_MOD(info->extack, "resources size validation failed");
+		return err;
+	}
+	return devlink->ops->reload(devlink);
+}
+
 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 },
@@ -2291,6 +2579,8 @@ static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = {
 	[DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = { .type = NLA_U8 },
 	[DEVLINK_ATTR_DPIPE_TABLE_NAME] = { .type = NLA_NUL_STRING },
 	[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED] = { .type = NLA_U8 },
+	[DEVLINK_ATTR_RESOURCE_ID] = { .type = NLA_U64},
+	[DEVLINK_ATTR_RESOURCE_SIZE] = { .type = NLA_U64},
 };
 
 static const struct genl_ops devlink_nl_ops[] = {
@@ -2322,14 +2612,16 @@ static const struct genl_ops devlink_nl_ops[] = {
 		.doit = devlink_nl_cmd_port_split_doit,
 		.policy = devlink_nl_policy,
 		.flags = GENL_ADMIN_PERM,
-		.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
+		.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
+				  DEVLINK_NL_FLAG_NO_LOCK,
 	},
 	{
 		.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,
+		.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
+				  DEVLINK_NL_FLAG_NO_LOCK,
 	},
 	{
 		.cmd = DEVLINK_CMD_SB_GET,
@@ -2397,8 +2689,7 @@ static const struct genl_ops devlink_nl_ops[] = {
 		.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_NL_FLAG_NEED_SB,
 	},
 	{
 		.cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR,
@@ -2406,8 +2697,7 @@ static const struct genl_ops devlink_nl_ops[] = {
 		.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_NL_FLAG_NEED_SB,
 	},
 	{
 		.cmd = DEVLINK_CMD_ESWITCH_GET,
@@ -2451,6 +2741,28 @@ static const struct genl_ops devlink_nl_ops[] = {
 		.flags = GENL_ADMIN_PERM,
 		.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
 	},
+	{
+		.cmd = DEVLINK_CMD_RESOURCE_SET,
+		.doit = devlink_nl_cmd_resource_set,
+		.policy = devlink_nl_policy,
+		.flags = GENL_ADMIN_PERM,
+		.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
+	},
+	{
+		.cmd = DEVLINK_CMD_RESOURCE_DUMP,
+		.doit = devlink_nl_cmd_resource_dump,
+		.policy = devlink_nl_policy,
+		.flags = GENL_ADMIN_PERM,
+		.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
+	},
+	{
+		.cmd = DEVLINK_CMD_RELOAD,
+		.doit = devlink_nl_cmd_reload,
+		.policy = devlink_nl_policy,
+		.flags = GENL_ADMIN_PERM,
+		.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
+				  DEVLINK_NL_FLAG_NO_LOCK,
+	},
 };
 
 static struct genl_family devlink_nl_family __ro_after_init = {
@@ -2488,6 +2800,8 @@ struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size)
 	INIT_LIST_HEAD(&devlink->port_list);
 	INIT_LIST_HEAD(&devlink->sb_list);
 	INIT_LIST_HEAD_RCU(&devlink->dpipe_table_list);
+	INIT_LIST_HEAD(&devlink->resource_list);
+	mutex_init(&devlink->lock);
 	return devlink;
 }
 EXPORT_SYMBOL_GPL(devlink_alloc);
@@ -2550,16 +2864,16 @@ int devlink_port_register(struct devlink *devlink,
 			  struct devlink_port *devlink_port,
 			  unsigned int port_index)
 {
-	mutex_lock(&devlink_port_mutex);
+	mutex_lock(&devlink->lock);
 	if (devlink_port_index_exists(devlink, port_index)) {
-		mutex_unlock(&devlink_port_mutex);
+		mutex_unlock(&devlink->lock);
 		return -EEXIST;
 	}
 	devlink_port->devlink = devlink;
 	devlink_port->index = port_index;
 	devlink_port->registered = true;
 	list_add_tail(&devlink_port->list, &devlink->port_list);
-	mutex_unlock(&devlink_port_mutex);
+	mutex_unlock(&devlink->lock);
 	devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW);
 	return 0;
 }
@@ -2572,10 +2886,12 @@ EXPORT_SYMBOL_GPL(devlink_port_register);
  */
 void devlink_port_unregister(struct devlink_port *devlink_port)
 {
+	struct devlink *devlink = devlink_port->devlink;
+
 	devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL);
-	mutex_lock(&devlink_port_mutex);
+	mutex_lock(&devlink->lock);
 	list_del(&devlink_port->list);
-	mutex_unlock(&devlink_port_mutex);
+	mutex_unlock(&devlink->lock);
 }
 EXPORT_SYMBOL_GPL(devlink_port_unregister);
 
@@ -2651,7 +2967,7 @@ int devlink_sb_register(struct devlink *devlink, unsigned int sb_index,
 	struct devlink_sb *devlink_sb;
 	int err = 0;
 
-	mutex_lock(&devlink_mutex);
+	mutex_lock(&devlink->lock);
 	if (devlink_sb_index_exists(devlink, sb_index)) {
 		err = -EEXIST;
 		goto unlock;
@@ -2670,7 +2986,7 @@ int devlink_sb_register(struct devlink *devlink, unsigned int sb_index,
 	devlink_sb->egress_tc_count = egress_tc_count;
 	list_add_tail(&devlink_sb->list, &devlink->sb_list);
 unlock:
-	mutex_unlock(&devlink_mutex);
+	mutex_unlock(&devlink->lock);
 	return err;
 }
 EXPORT_SYMBOL_GPL(devlink_sb_register);
@@ -2679,11 +2995,11 @@ void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index)
 {
 	struct devlink_sb *devlink_sb;
 
-	mutex_lock(&devlink_mutex);
+	mutex_lock(&devlink->lock);
 	devlink_sb = devlink_sb_get_by_index(devlink, sb_index);
 	WARN_ON(!devlink_sb);
 	list_del(&devlink_sb->list);
-	mutex_unlock(&devlink_mutex);
+	mutex_unlock(&devlink->lock);
 	kfree(devlink_sb);
 }
 EXPORT_SYMBOL_GPL(devlink_sb_unregister);
@@ -2699,9 +3015,9 @@ EXPORT_SYMBOL_GPL(devlink_sb_unregister);
 int devlink_dpipe_headers_register(struct devlink *devlink,
 				   struct devlink_dpipe_headers *dpipe_headers)
 {
-	mutex_lock(&devlink_mutex);
+	mutex_lock(&devlink->lock);
 	devlink->dpipe_headers = dpipe_headers;
-	mutex_unlock(&devlink_mutex);
+	mutex_unlock(&devlink->lock);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(devlink_dpipe_headers_register);
@@ -2715,9 +3031,9 @@ EXPORT_SYMBOL_GPL(devlink_dpipe_headers_register);
  */
 void devlink_dpipe_headers_unregister(struct devlink *devlink)
 {
-	mutex_lock(&devlink_mutex);
+	mutex_lock(&devlink->lock);
 	devlink->dpipe_headers = NULL;
-	mutex_unlock(&devlink_mutex);
+	mutex_unlock(&devlink->lock);
 }
 EXPORT_SYMBOL_GPL(devlink_dpipe_headers_unregister);
 
@@ -2783,9 +3099,9 @@ int devlink_dpipe_table_register(struct devlink *devlink,
 	table->priv = priv;
 	table->counter_control_extern = counter_control_extern;
 
-	mutex_lock(&devlink_mutex);
+	mutex_lock(&devlink->lock);
 	list_add_tail_rcu(&table->list, &devlink->dpipe_table_list);
-	mutex_unlock(&devlink_mutex);
+	mutex_unlock(&devlink->lock);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(devlink_dpipe_table_register);
@@ -2801,20 +3117,182 @@ void devlink_dpipe_table_unregister(struct devlink *devlink,
 {
 	struct devlink_dpipe_table *table;
 
-	mutex_lock(&devlink_mutex);
+	mutex_lock(&devlink->lock);
 	table = devlink_dpipe_table_find(&devlink->dpipe_table_list,
 					 table_name);
 	if (!table)
 		goto unlock;
 	list_del_rcu(&table->list);
-	mutex_unlock(&devlink_mutex);
+	mutex_unlock(&devlink->lock);
 	kfree_rcu(table, rcu);
 	return;
 unlock:
-	mutex_unlock(&devlink_mutex);
+	mutex_unlock(&devlink->lock);
 }
 EXPORT_SYMBOL_GPL(devlink_dpipe_table_unregister);
 
+/**
+ *	devlink_resource_register - devlink resource register
+ *
+ *	@devlink: devlink
+ *	@resource_name: resource's name
+ *	@top_hierarchy: top hierarchy
+ *	@reload_required: reload is required for new configuration to
+ *			  apply
+ *	@resource_size: resource's size
+ *	@resource_id: resource's id
+ *	@parent_reosurce_id: resource's parent id
+ *	@size params: size parameters
+ *	@resource_ops: resource ops
+ */
+int devlink_resource_register(struct devlink *devlink,
+			      const char *resource_name,
+			      bool top_hierarchy,
+			      u64 resource_size,
+			      u64 resource_id,
+			      u64 parent_resource_id,
+			      struct devlink_resource_size_params *size_params,
+			      const struct devlink_resource_ops *resource_ops)
+{
+	struct devlink_resource *resource;
+	struct list_head *resource_list;
+	int err = 0;
+
+	mutex_lock(&devlink->lock);
+	resource = devlink_resource_find(devlink, NULL, resource_id);
+	if (resource) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	resource = kzalloc(sizeof(*resource), GFP_KERNEL);
+	if (!resource) {
+		err = -ENOMEM;
+		goto out;
+	}
+
+	if (top_hierarchy) {
+		resource_list = &devlink->resource_list;
+	} else {
+		struct devlink_resource *parent_resource;
+
+		parent_resource = devlink_resource_find(devlink, NULL,
+							parent_resource_id);
+		if (parent_resource) {
+			resource_list = &parent_resource->resource_list;
+			resource->parent = parent_resource;
+		} else {
+			kfree(resource);
+			err = -EINVAL;
+			goto out;
+		}
+	}
+
+	resource->name = resource_name;
+	resource->size = resource_size;
+	resource->size_new = resource_size;
+	resource->id = resource_id;
+	resource->resource_ops = resource_ops;
+	resource->size_valid = true;
+	resource->size_params = size_params;
+	INIT_LIST_HEAD(&resource->resource_list);
+	list_add_tail(&resource->list, resource_list);
+out:
+	mutex_unlock(&devlink->lock);
+	return err;
+}
+EXPORT_SYMBOL_GPL(devlink_resource_register);
+
+/**
+ *	devlink_resources_unregister - free all resources
+ *
+ *	@devlink: devlink
+ *	@resource: resource
+ */
+void devlink_resources_unregister(struct devlink *devlink,
+				  struct devlink_resource *resource)
+{
+	struct devlink_resource *tmp, *child_resource;
+	struct list_head *resource_list;
+
+	if (resource)
+		resource_list = &resource->resource_list;
+	else
+		resource_list = &devlink->resource_list;
+
+	if (!resource)
+		mutex_lock(&devlink->lock);
+
+	list_for_each_entry_safe(child_resource, tmp, resource_list, list) {
+		devlink_resources_unregister(devlink, child_resource);
+		list_del(&child_resource->list);
+		kfree(child_resource);
+	}
+
+	if (!resource)
+		mutex_unlock(&devlink->lock);
+}
+EXPORT_SYMBOL_GPL(devlink_resources_unregister);
+
+/**
+ *	devlink_resource_size_get - get and update size
+ *
+ *	@devlink: devlink
+ *	@resource_id: the requested resource id
+ *	@p_resource_size: ptr to update
+ */
+int devlink_resource_size_get(struct devlink *devlink,
+			      u64 resource_id,
+			      u64 *p_resource_size)
+{
+	struct devlink_resource *resource;
+	int err = 0;
+
+	mutex_lock(&devlink->lock);
+	resource = devlink_resource_find(devlink, NULL, resource_id);
+	if (!resource) {
+		err = -EINVAL;
+		goto out;
+	}
+	*p_resource_size = resource->size_new;
+	resource->size = resource->size_new;
+out:
+	mutex_unlock(&devlink->lock);
+	return err;
+}
+EXPORT_SYMBOL_GPL(devlink_resource_size_get);
+
+/**
+ *	devlink_dpipe_table_resource_set - set the resource id
+ *
+ *	@devlink: devlink
+ *	@table_name: table name
+ *	@resource_id: resource id
+ *	@resource_units: number of resource's units consumed per table's entry
+ */
+int devlink_dpipe_table_resource_set(struct devlink *devlink,
+				     const char *table_name, u64 resource_id,
+				     u64 resource_units)
+{
+	struct devlink_dpipe_table *table;
+	int err = 0;
+
+	mutex_lock(&devlink->lock);
+	table = devlink_dpipe_table_find(&devlink->dpipe_table_list,
+					 table_name);
+	if (!table) {
+		err = -EINVAL;
+		goto out;
+	}
+	table->resource_id = resource_id;
+	table->resource_units = resource_units;
+	table->resource_valid = true;
+out:
+	mutex_unlock(&devlink->lock);
+	return err;
+}
+EXPORT_SYMBOL_GPL(devlink_dpipe_table_resource_set);
+
 static int __init devlink_module_init(void)
 {
 	return genl_register_family(&devlink_nl_family);