Merge branch 'master' into net-next

devlink/devlink.c

@@ -27,6 +27,12 @@
 
 #define pr_err(args...) fprintf(stderr, ##args)
 #define pr_out(args...) fprintf(stdout, ##args)
+#define pr_out_sp(num, args...)					\
+	do {							\
+		int ret = fprintf(stdout, ##args);		\
+		if (ret < num)					\
+			fprintf(stdout, "%*s", num - ret, "");	\
+	} while (0)
 
 static int _mnlg_socket_recv_run(struct mnlg_socket *nlg,
 				 mnl_cb_t data_cb, void *data)
@@ -109,11 +115,42 @@ static void ifname_map_free(struct ifname_map *ifname_map)
 	free(ifname_map);
 }
 
+#define BIT(nr)                 (1UL << (nr))
+#define DL_OPT_HANDLE		BIT(0)
+#define DL_OPT_HANDLEP		BIT(1)
+#define DL_OPT_PORT_TYPE	BIT(2)
+#define DL_OPT_PORT_COUNT	BIT(3)
+#define DL_OPT_SB		BIT(4)
+#define DL_OPT_SB_POOL		BIT(5)
+#define DL_OPT_SB_SIZE		BIT(6)
+#define DL_OPT_SB_TYPE		BIT(7)
+#define DL_OPT_SB_THTYPE	BIT(8)
+#define DL_OPT_SB_TH		BIT(9)
+#define DL_OPT_SB_TC		BIT(10)
+
+struct dl_opts {
+	uint32_t present; /* flags of present items */
+	char *bus_name;
+	char *dev_name;
+	uint32_t port_index;
+	enum devlink_port_type port_type;
+	uint32_t port_count;
+	uint32_t sb_index;
+	uint16_t sb_pool_index;
+	uint32_t sb_pool_size;
+	enum devlink_sb_pool_type sb_pool_type;
+	enum devlink_sb_threshold_type sb_pool_thtype;
+	uint32_t sb_threshold;
+	uint16_t sb_tc_index;
+};
+
 struct dl {
 	struct mnlg_socket *nlg;
 	struct list_head ifname_map_list;
 	int argc;
 	char **argv;
+	bool no_nice_names;
+	struct dl_opts opts;
 };
 
 static int dl_argc(struct dl *dl)
@@ -208,6 +245,48 @@ static int attr_cb(const struct nlattr *attr, void *data)
 	if (type == DEVLINK_ATTR_PORT_IBDEV_NAME &&
 	    mnl_attr_validate(attr, MNL_TYPE_NUL_STRING) < 0)
 		return MNL_CB_ERROR;
+	if (type == DEVLINK_ATTR_SB_INDEX &&
+	    mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+		return MNL_CB_ERROR;
+	if (type == DEVLINK_ATTR_SB_SIZE &&
+	    mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+		return MNL_CB_ERROR;
+	if (type == DEVLINK_ATTR_SB_INGRESS_POOL_COUNT &&
+	    mnl_attr_validate(attr, MNL_TYPE_U16) < 0)
+		return MNL_CB_ERROR;
+	if (type == DEVLINK_ATTR_SB_EGRESS_POOL_COUNT &&
+	    mnl_attr_validate(attr, MNL_TYPE_U16) < 0)
+		return MNL_CB_ERROR;
+	if (type == DEVLINK_ATTR_SB_INGRESS_TC_COUNT &&
+	    mnl_attr_validate(attr, MNL_TYPE_U16) < 0)
+		return MNL_CB_ERROR;
+	if (type == DEVLINK_ATTR_SB_EGRESS_TC_COUNT &&
+	    mnl_attr_validate(attr, MNL_TYPE_U16) < 0)
+		return MNL_CB_ERROR;
+	if (type == DEVLINK_ATTR_SB_POOL_INDEX &&
+	    mnl_attr_validate(attr, MNL_TYPE_U16) < 0)
+		return MNL_CB_ERROR;
+	if (type == DEVLINK_ATTR_SB_POOL_TYPE &&
+	    mnl_attr_validate(attr, MNL_TYPE_U8) < 0)
+		return MNL_CB_ERROR;
+	if (type == DEVLINK_ATTR_SB_POOL_SIZE &&
+	    mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+		return MNL_CB_ERROR;
+	if (type == DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE &&
+	    mnl_attr_validate(attr, MNL_TYPE_U8) < 0)
+		return MNL_CB_ERROR;
+	if (type == DEVLINK_ATTR_SB_THRESHOLD &&
+	    mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+		return MNL_CB_ERROR;
+	if (type == DEVLINK_ATTR_SB_TC_INDEX &&
+	    mnl_attr_validate(attr, MNL_TYPE_U16) < 0)
+		return MNL_CB_ERROR;
+	if (type == DEVLINK_ATTR_SB_OCC_CUR &&
+	    mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+		return MNL_CB_ERROR;
+	if (type == DEVLINK_ATTR_SB_OCC_MAX &&
+	    mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+		return MNL_CB_ERROR;
 	tb[type] = attr;
 	return MNL_CB_OK;
 }
@@ -290,6 +369,23 @@ static int ifname_map_lookup(struct dl *dl, const char *ifname,
 	return -ENOENT;
 }
 
+static int ifname_map_rev_lookup(struct dl *dl, const char *bus_name,
+				 const char *dev_name, uint32_t port_index,
+				 char **p_ifname)
+{
+	struct ifname_map *ifname_map;
+
+	list_for_each_entry(ifname_map, &dl->ifname_map_list, list) {
+		if (strcmp(bus_name, ifname_map->bus_name) == 0 &&
+		    strcmp(dev_name, ifname_map->dev_name) == 0 &&
+		    port_index == ifname_map->port_index) {
+			*p_ifname = ifname_map->ifname;
+			return 0;
+		}
+	}
+	return -ENOENT;
+}
+
 static unsigned int strslashcount(char *str)
 {
 	unsigned int count = 0;
@@ -329,11 +425,29 @@ static int strtouint32_t(const char *str, uint32_t *p_val)
 	return 0;
 }
 
-static int dl_argv_put_handle(struct nlmsghdr *nlh, struct dl *dl)
+static int strtouint16_t(const char *str, uint16_t *p_val)
+{
+	char *endptr;
+	unsigned long int val;
+
+	val = strtoul(str, &endptr, 10);
+	if (endptr == str || *endptr != '\0')
+		return -EINVAL;
+	if (val > USHRT_MAX)
+		return -ERANGE;
+	*p_val = val;
+	return 0;
+}
+
+static int __dl_argv_handle(char *str, char **p_bus_name, char **p_dev_name)
+{
+	strslashrsplit(str, p_bus_name, p_dev_name);
+	return 0;
+}
+
+static int dl_argv_handle(struct dl *dl, char **p_bus_name, char **p_dev_name)
 {
 	char *str = dl_argv_next(dl);
-	char *bus_name = bus_name;
-	char *dev_name = dev_name;
 
 	if (!str) {
 		pr_err("Devlink identification (\"bus_name/dev_name\") expected\n");
@@ -344,21 +458,48 @@ static int dl_argv_put_handle(struct nlmsghdr *nlh, struct dl *dl)
 		pr_err("Expected \"bus_name/dev_name\".\n");
 		return -EINVAL;
 	}
+	return __dl_argv_handle(str, p_bus_name, p_dev_name);
+}
+
+static int __dl_argv_handle_port(char *str,
+				 char **p_bus_name, char **p_dev_name,
+				 uint32_t *p_port_index)
+{
+	char *handlestr = handlestr;
+	char *portstr = portstr;
+	int err;
+
+	strslashrsplit(str, &handlestr, &portstr);
+	err = strtouint32_t(portstr, p_port_index);
+	if (err) {
+		pr_err("Port index \"%s\" is not a number or not within range\n",
+		       portstr);
+		return err;
+	}
+	strslashrsplit(handlestr, p_bus_name, p_dev_name);
+	return 0;
+}
 
-	strslashrsplit(str, &bus_name, &dev_name);
-	mnl_attr_put_strz(nlh, DEVLINK_ATTR_BUS_NAME, bus_name);
-	mnl_attr_put_strz(nlh, DEVLINK_ATTR_DEV_NAME, dev_name);
+static int __dl_argv_handle_port_ifname(struct dl *dl, char *str,
+					char **p_bus_name, char **p_dev_name,
+					uint32_t *p_port_index)
+{
+	int err;
+
+	err = ifname_map_lookup(dl, str, p_bus_name, p_dev_name,
+				p_port_index);
+	if (err) {
+		pr_err("Netdevice \"%s\" not found\n", str);
+		return err;
+	}
 	return 0;
 }
 
-static int dl_argv_put_handle_port(struct nlmsghdr *nlh, struct dl *dl)
+static int dl_argv_handle_port(struct dl *dl, char **p_bus_name,
+			       char **p_dev_name, uint32_t *p_port_index)
 {
 	char *str = dl_argv_next(dl);
 	unsigned int slash_count;
-	char *bus_name = bus_name;
-	char *dev_name = dev_name;
-	uint32_t port_index = port_index;
-	int err;
 
 	if (!str) {
 		pr_err("Port identification (\"bus_name/dev_name/port_index\" or \"netdev ifname\") expected.\n");
@@ -370,30 +511,53 @@ static int dl_argv_put_handle_port(struct nlmsghdr *nlh, struct dl *dl)
 		pr_err("Expected \"bus_name/dev_name/port_index\" or \"netdev_ifname\".\n");
 		return -EINVAL;
 	}
-
 	if (slash_count == 2) {
-		char *handlestr = handlestr;
-		char *portstr = portstr;
-
-		err = strslashrsplit(str, &handlestr, &portstr);
-		err = strtouint32_t(portstr, &port_index);
-		if (err) {
-			pr_err("Port index \"%s\" is not a number or not within range\n",
-			       portstr);
+		return __dl_argv_handle_port(str, p_bus_name,
+					     p_dev_name, p_port_index);
+	} else if (slash_count == 0) {
+		return __dl_argv_handle_port_ifname(dl, str, p_bus_name,
+						    p_dev_name, p_port_index);
+	}
+	return 0;
+}
+
+static int dl_argv_handle_both(struct dl *dl, char **p_bus_name,
+			       char **p_dev_name, uint32_t *p_port_index,
+			       uint32_t *p_handle_bit)
+{
+	char *str = dl_argv_next(dl);
+	unsigned int slash_count;
+	int err;
+
+	if (!str) {
+		pr_err("One of following identifications expected:\n"
+		       "Devlink identification (\"bus_name/dev_name\")\n"
+		       "Port identification (\"bus_name/dev_name/port_index\" or \"netdev ifname\")\n");
+		return -EINVAL;
+	}
+	slash_count = strslashcount(str);
+	if (slash_count == 1) {
+		err = __dl_argv_handle(str, p_bus_name, p_dev_name);
+		if (err)
 			return err;
-		}
-		strslashrsplit(handlestr, &bus_name, &dev_name);
+		*p_handle_bit = DL_OPT_HANDLE;
+	} else if (slash_count == 2) {
+		err = __dl_argv_handle_port(str, p_bus_name,
+					    p_dev_name, p_port_index);
+		if (err)
+			return err;
+		*p_handle_bit = DL_OPT_HANDLEP;
 	} else if (slash_count == 0) {
-		err = ifname_map_lookup(dl, str, &bus_name, &dev_name,
-					&port_index);
-		if (err) {
-			pr_err("Netdevice \"%s\" not found\n", str);
+		err = __dl_argv_handle_port_ifname(dl, str, p_bus_name,
+						   p_dev_name, p_port_index);
+		if (err)
 			return err;
-		}
+		*p_handle_bit = DL_OPT_HANDLEP;
+	} else {
+		pr_err("Wrong port identification string format.\n");
+		pr_err("Expected \"bus_name/dev_name\" or \"bus_name/dev_name/port_index\" or \"netdev_ifname\".\n");
+		return -EINVAL;
 	}
-	mnl_attr_put_strz(nlh, DEVLINK_ATTR_BUS_NAME, bus_name);
-	mnl_attr_put_strz(nlh, DEVLINK_ATTR_DEV_NAME, dev_name);
-	mnl_attr_put_u32(nlh, DEVLINK_ATTR_PORT_INDEX, port_index);
 	return 0;
 }
 
@@ -415,6 +579,24 @@ static int dl_argv_uint32_t(struct dl *dl, uint32_t *p_val)
 	return 0;
 }
 
+static int dl_argv_uint16_t(struct dl *dl, uint16_t *p_val)
+{
+	char *str = dl_argv_next(dl);
+	int err;
+
+	if (!str) {
+		pr_err("Unsigned number argument expected\n");
+		return -EINVAL;
+	}
+
+	err = strtouint16_t(str, p_val);
+	if (err) {
+		pr_err("\"%s\" is not a number or not within range\n", str);
+		return err;
+	}
+	return 0;
+}
+
 static int dl_argv_str(struct dl *dl, const char **p_str)
 {
 	const char *str = dl_argv_next(dl);
@@ -442,62 +624,155 @@ static int port_type_get(const char *typestr, enum devlink_port_type *p_type)
 	return 0;
 }
 
-#define BIT(nr)                 (1UL << (nr))
-#define DL_OPT_HANDLE		BIT(0)
-#define DL_OPT_HANDLEP		BIT(1)
-#define DL_OPT_PORT_TYPE	BIT(2)
-#define DL_OPT_PORT_COUNT	BIT(3)
+static int pool_type_get(const char *typestr, enum devlink_sb_pool_type *p_type)
+{
+	if (strcmp(typestr, "ingress") == 0) {
+		*p_type = DEVLINK_SB_POOL_TYPE_INGRESS;
+	} else if (strcmp(typestr, "egress") == 0) {
+		*p_type = DEVLINK_SB_POOL_TYPE_EGRESS;
+	} else {
+		pr_err("Unknown pool type \"%s\"\n", typestr);
+		return -EINVAL;
+	}
+	return 0;
+}
 
-static int dl_argv_parse_put(struct nlmsghdr *nlh, struct dl *dl,
-			     uint32_t o_required, uint32_t o_optional)
+static int threshold_type_get(const char *typestr,
+			      enum devlink_sb_threshold_type *p_type)
+{
+	if (strcmp(typestr, "static") == 0) {
+		*p_type = DEVLINK_SB_THRESHOLD_TYPE_STATIC;
+	} else if (strcmp(typestr, "dynamic") == 0) {
+		*p_type = DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC;
+	} else {
+		pr_err("Unknown threshold type \"%s\"\n", typestr);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int dl_argv_parse(struct dl *dl, uint32_t o_required,
+			 uint32_t o_optional)
 {
+	struct dl_opts *opts = &dl->opts;
 	uint32_t o_all = o_required | o_optional;
 	uint32_t o_found = 0;
 	int err;
 
-	if (o_required & DL_OPT_HANDLE) {
-		err = dl_argv_put_handle(nlh, dl);
+	if (o_required & DL_OPT_HANDLE && o_required & DL_OPT_HANDLEP) {
+		uint32_t handle_bit = handle_bit;
+
+		err = dl_argv_handle_both(dl, &opts->bus_name, &opts->dev_name,
+					  &opts->port_index, &handle_bit);
 		if (err)
 			return err;
+		o_found |= handle_bit;
+	} else if (o_required & DL_OPT_HANDLE) {
+		err = dl_argv_handle(dl, &opts->bus_name, &opts->dev_name);
+		if (err)
+			return err;
+		o_found |= DL_OPT_HANDLE;
 	} else if (o_required & DL_OPT_HANDLEP) {
-		err = dl_argv_put_handle_port(nlh, dl);
+		err = dl_argv_handle_port(dl, &opts->bus_name, &opts->dev_name,
+					  &opts->port_index);
 		if (err)
 			return err;
+		o_found |= DL_OPT_HANDLEP;
 	}
 
 	while (dl_argc(dl)) {
 		if (dl_argv_match(dl, "type") &&
 		    (o_all & DL_OPT_PORT_TYPE)) {
-			enum devlink_port_type port_type;
 			const char *typestr;
 
 			dl_arg_inc(dl);
 			err = dl_argv_str(dl, &typestr);
 			if (err)
 				return err;
-			err = port_type_get(typestr, &port_type);
+			err = port_type_get(typestr, &opts->port_type);
 			if (err)
 				return err;
-			mnl_attr_put_u16(nlh, DEVLINK_ATTR_PORT_TYPE,
-					 port_type);
 			o_found |= DL_OPT_PORT_TYPE;
 		} else if (dl_argv_match(dl, "count") &&
 			   (o_all & DL_OPT_PORT_COUNT)) {
-			uint32_t count;
-
 			dl_arg_inc(dl);
-			err = dl_argv_uint32_t(dl, &count);
+			err = dl_argv_uint32_t(dl, &opts->port_count);
 			if (err)
 				return err;
-			mnl_attr_put_u32(nlh, DEVLINK_ATTR_PORT_SPLIT_COUNT,
-					 count);
 			o_found |= DL_OPT_PORT_COUNT;
+		} else if (dl_argv_match(dl, "sb") &&
+			   (o_all & DL_OPT_SB)) {
+			dl_arg_inc(dl);
+			err = dl_argv_uint32_t(dl, &opts->sb_index);
+			if (err)
+				return err;
+			o_found |= DL_OPT_SB;
+		} else if (dl_argv_match(dl, "pool") &&
+			   (o_all & DL_OPT_SB_POOL)) {
+			dl_arg_inc(dl);
+			err = dl_argv_uint16_t(dl, &opts->sb_pool_index);
+			if (err)
+				return err;
+			o_found |= DL_OPT_SB_POOL;
+		} else if (dl_argv_match(dl, "size") &&
+			   (o_all & DL_OPT_SB_SIZE)) {
+			dl_arg_inc(dl);
+			err = dl_argv_uint32_t(dl, &opts->sb_pool_size);
+			if (err)
+				return err;
+			o_found |= DL_OPT_SB_SIZE;
+		} else if (dl_argv_match(dl, "type") &&
+			   (o_all & DL_OPT_SB_TYPE)) {
+			const char *typestr;
+
+			dl_arg_inc(dl);
+			err = dl_argv_str(dl, &typestr);
+			if (err)
+				return err;
+			err = pool_type_get(typestr, &opts->sb_pool_type);
+			if (err)
+				return err;
+			o_found |= DL_OPT_SB_TYPE;
+		} else if (dl_argv_match(dl, "thtype") &&
+			   (o_all & DL_OPT_SB_THTYPE)) {
+			const char *typestr;
+
+			dl_arg_inc(dl);
+			err = dl_argv_str(dl, &typestr);
+			if (err)
+				return err;
+			err = threshold_type_get(typestr,
+						 &opts->sb_pool_thtype);
+			if (err)
+				return err;
+			o_found |= DL_OPT_SB_THTYPE;
+		} else if (dl_argv_match(dl, "th") &&
+			   (o_all & DL_OPT_SB_TH)) {
+			dl_arg_inc(dl);
+			err = dl_argv_uint32_t(dl, &opts->sb_threshold);
+			if (err)
+				return err;
+			o_found |= DL_OPT_SB_TH;
+		} else if (dl_argv_match(dl, "tc") &&
+			   (o_all & DL_OPT_SB_TC)) {
+			dl_arg_inc(dl);
+			err = dl_argv_uint16_t(dl, &opts->sb_tc_index);
+			if (err)
+				return err;
+			o_found |= DL_OPT_SB_TC;
 		} else {
 			pr_err("Unknown option \"%s\"\n", dl_argv(dl));
 			return -EINVAL;
 		}
 	}
 
+	opts->present = o_found;
+
+	if ((o_optional & DL_OPT_SB) && !(o_found & DL_OPT_SB)) {
+		opts->sb_index = 0;
+		opts->present |= DL_OPT_SB;
+	}
+
 	if ((o_required & DL_OPT_PORT_TYPE) && !(o_found & DL_OPT_PORT_TYPE)) {
 		pr_err("Port type option expected.\n");
 		return -EINVAL;
@@ -509,20 +784,192 @@ static int dl_argv_parse_put(struct nlmsghdr *nlh, struct dl *dl,
 		return -EINVAL;
 	}
 
+	if ((o_required & DL_OPT_SB_POOL) && !(o_found & DL_OPT_SB_POOL)) {
+		pr_err("Pool index option expected.\n");
+		return -EINVAL;
+	}
+
+	if ((o_required & DL_OPT_SB_SIZE) && !(o_found & DL_OPT_SB_SIZE)) {
+		pr_err("Pool size option expected.\n");
+		return -EINVAL;
+	}
+
+	if ((o_required & DL_OPT_SB_TYPE) && !(o_found & DL_OPT_SB_TYPE)) {
+		pr_err("Pool type option expected.\n");
+		return -EINVAL;
+	}
+
+	if ((o_required & DL_OPT_SB_THTYPE) && !(o_found & DL_OPT_SB_THTYPE)) {
+		pr_err("Pool threshold type option expected.\n");
+		return -EINVAL;
+	}
+
+	if ((o_required & DL_OPT_SB_TH) && !(o_found & DL_OPT_SB_TH)) {
+		pr_err("Threshold option expected.\n");
+		return -EINVAL;
+	}
+
+	if ((o_required & DL_OPT_SB_TC) && !(o_found & DL_OPT_SB_TC)) {
+		pr_err("TC index option expected.\n");
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static void dl_opts_put(struct nlmsghdr *nlh, struct dl *dl)
+{
+	struct dl_opts *opts = &dl->opts;
+
+	if (opts->present & DL_OPT_HANDLE) {
+		mnl_attr_put_strz(nlh, DEVLINK_ATTR_BUS_NAME, opts->bus_name);
+		mnl_attr_put_strz(nlh, DEVLINK_ATTR_DEV_NAME, opts->dev_name);
+	} else if (opts->present & DL_OPT_HANDLEP) {
+		mnl_attr_put_strz(nlh, DEVLINK_ATTR_BUS_NAME, opts->bus_name);
+		mnl_attr_put_strz(nlh, DEVLINK_ATTR_DEV_NAME, opts->dev_name);
+		mnl_attr_put_u32(nlh, DEVLINK_ATTR_PORT_INDEX,
+				 opts->port_index);
+	}
+	if (opts->present & DL_OPT_PORT_TYPE)
+		mnl_attr_put_u16(nlh, DEVLINK_ATTR_PORT_TYPE,
+				 opts->port_type);
+	if (opts->present & DL_OPT_PORT_COUNT)
+		mnl_attr_put_u32(nlh, DEVLINK_ATTR_PORT_SPLIT_COUNT,
+				 opts->port_count);
+	if (opts->present & DL_OPT_SB)
+		mnl_attr_put_u32(nlh, DEVLINK_ATTR_SB_INDEX,
+				 opts->sb_index);
+	if (opts->present & DL_OPT_SB_POOL)
+		mnl_attr_put_u16(nlh, DEVLINK_ATTR_SB_POOL_INDEX,
+				 opts->sb_pool_index);
+	if (opts->present & DL_OPT_SB_SIZE)
+		mnl_attr_put_u32(nlh, DEVLINK_ATTR_SB_POOL_SIZE,
+				 opts->sb_pool_size);
+	if (opts->present & DL_OPT_SB_TYPE)
+		mnl_attr_put_u8(nlh, DEVLINK_ATTR_SB_POOL_TYPE,
+				opts->sb_pool_type);
+	if (opts->present & DL_OPT_SB_THTYPE)
+		mnl_attr_put_u8(nlh, DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE,
+				opts->sb_pool_thtype);
+	if (opts->present & DL_OPT_SB_TH)
+		mnl_attr_put_u32(nlh, DEVLINK_ATTR_SB_THRESHOLD,
+				 opts->sb_threshold);
+	if (opts->present & DL_OPT_SB_TC)
+		mnl_attr_put_u16(nlh, DEVLINK_ATTR_SB_TC_INDEX,
+				 opts->sb_tc_index);
+}
+
+static int dl_argv_parse_put(struct nlmsghdr *nlh, struct dl *dl,
+			     uint32_t o_required, uint32_t o_optional)
+{
+	int err;
+
+	err = dl_argv_parse(dl, o_required, o_optional);
+	if (err)
+		return err;
+	dl_opts_put(nlh, dl);
 	return 0;
 }
 
+static bool dl_dump_filter(struct dl *dl, struct nlattr **tb)
+{
+	struct dl_opts *opts = &dl->opts;
+	struct nlattr *attr_bus_name = tb[DEVLINK_ATTR_BUS_NAME];
+	struct nlattr *attr_dev_name = tb[DEVLINK_ATTR_DEV_NAME];
+	struct nlattr *attr_port_index = tb[DEVLINK_ATTR_PORT_INDEX];
+	struct nlattr *attr_sb_index = tb[DEVLINK_ATTR_SB_INDEX];
+
+	if (opts->present & DL_OPT_HANDLE &&
+	    attr_bus_name && attr_dev_name) {
+		const char *bus_name = mnl_attr_get_str(attr_bus_name);
+		const char *dev_name = mnl_attr_get_str(attr_dev_name);
+
+		if (strcmp(bus_name, opts->bus_name) != 0 ||
+		    strcmp(dev_name, opts->dev_name) != 0)
+			return false;
+	}
+	if (opts->present & DL_OPT_HANDLEP &&
+	    attr_bus_name && attr_dev_name && attr_port_index) {
+		const char *bus_name = mnl_attr_get_str(attr_bus_name);
+		const char *dev_name = mnl_attr_get_str(attr_dev_name);
+		uint32_t port_index = mnl_attr_get_u32(attr_port_index);
+
+		if (strcmp(bus_name, opts->bus_name) != 0 ||
+		    strcmp(dev_name, opts->dev_name) != 0 ||
+		    port_index != opts->port_index)
+			return false;
+	}
+	if (opts->present & DL_OPT_SB && attr_sb_index) {
+		uint32_t sb_index = mnl_attr_get_u32(attr_sb_index);
+
+		if (sb_index != opts->sb_index)
+			return false;
+	}
+	return true;
+}
+
 static void cmd_dev_help(void)
 {
 	pr_out("Usage: devlink dev show [ DEV ]\n");
 }
 
+static void __pr_out_handle(const char *bus_name, const char *dev_name)
+{
+	pr_out("%s/%s", bus_name, dev_name);
+}
+
 static void pr_out_handle(struct nlattr **tb)
 {
-	pr_out("%s/%s", mnl_attr_get_str(tb[DEVLINK_ATTR_BUS_NAME]),
+	__pr_out_handle(mnl_attr_get_str(tb[DEVLINK_ATTR_BUS_NAME]),
 			mnl_attr_get_str(tb[DEVLINK_ATTR_DEV_NAME]));
 }
 
+static void __pr_out_port_handle(const char *bus_name, const char *dev_name,
+				 uint32_t port_index)
+{
+	__pr_out_handle(bus_name, dev_name);
+	pr_out("/%d", port_index);
+}
+
+static void pr_out_port_handle(struct nlattr **tb)
+{
+	__pr_out_port_handle(mnl_attr_get_str(tb[DEVLINK_ATTR_BUS_NAME]),
+			     mnl_attr_get_str(tb[DEVLINK_ATTR_DEV_NAME]),
+			     mnl_attr_get_u32(tb[DEVLINK_ATTR_PORT_INDEX]));
+}
+
+static void __pr_out_port_handle_nice(struct dl *dl, const char *bus_name,
+				      const char *dev_name, uint32_t port_index)
+{
+	char *ifname;
+	int err;
+
+	if (dl->no_nice_names)
+		goto no_nice_names;
+
+	err = ifname_map_rev_lookup(dl, bus_name, dev_name,
+				    port_index, &ifname);
+	if (err)
+		goto no_nice_names;
+	pr_out("%s", ifname);
+	return;
+
+no_nice_names:
+	__pr_out_port_handle(bus_name, dev_name, port_index);
+}
+
+static void pr_out_port_handle_nice(struct dl *dl, struct nlattr **tb)
+{
+	const char *bus_name;
+	const char *dev_name;
+	uint32_t port_index;
+
+	bus_name = mnl_attr_get_str(tb[DEVLINK_ATTR_BUS_NAME]);
+	dev_name = mnl_attr_get_str(tb[DEVLINK_ATTR_DEV_NAME]);
+	port_index = mnl_attr_get_u32(tb[DEVLINK_ATTR_PORT_INDEX]);
+
+	__pr_out_port_handle_nice(dl, bus_name, dev_name, port_index);
+}
+
 static void pr_out_dev(struct nlattr **tb)
 {
 	pr_out_handle(tb);
@@ -578,9 +1025,9 @@ static int cmd_dev(struct dl *dl)
 static void cmd_port_help(void)
 {
 	pr_out("Usage: devlink port show [ DEV/PORT_INDEX ]\n");
-	pr_out("       dl port set DEV/PORT_INDEX [ type { eth | ib | auto} ]\n");
-	pr_out("       dl port split DEV/PORT_INDEX count COUNT\n");
-	pr_out("       dl port unsplit DEV/PORT_INDEX\n");
+	pr_out("       devlink port set DEV/PORT_INDEX [ type { eth | ib | auto} ]\n");
+	pr_out("       devlink port split DEV/PORT_INDEX count COUNT\n");
+	pr_out("       devlink port unsplit DEV/PORT_INDEX\n");
 }
 
 static const char *port_type_name(uint32_t type)
@@ -599,8 +1046,8 @@ static void pr_out_port(struct nlattr **tb)
 	struct nlattr *pt_attr = tb[DEVLINK_ATTR_PORT_TYPE];
 	struct nlattr *dpt_attr = tb[DEVLINK_ATTR_PORT_DESIRED_TYPE];
 
-	pr_out_handle(tb);
-	pr_out("/%d:", mnl_attr_get_u32(tb[DEVLINK_ATTR_PORT_INDEX]));
+	pr_out_port_handle(tb);
+	pr_out(":");
 	if (pt_attr) {
 		uint16_t port_type = mnl_attr_get_u16(pt_attr);
 
@@ -725,19 +1172,723 @@ static int cmd_port(struct dl *dl)
 	return -ENOENT;
 }
 
-static const char *cmd_name(uint8_t cmd)
+static void cmd_sb_help(void)
 {
-	switch (cmd) {
-	case DEVLINK_CMD_UNSPEC: return "unspec";
-	case DEVLINK_CMD_GET: return "get";
-	case DEVLINK_CMD_SET: return "set";
-	case DEVLINK_CMD_NEW: return "new";
-	case DEVLINK_CMD_DEL: return "del";
-	case DEVLINK_CMD_PORT_GET: return "get";
-	case DEVLINK_CMD_PORT_SET: return "set";
-	case DEVLINK_CMD_PORT_NEW: return "net";
-	case DEVLINK_CMD_PORT_DEL: return "del";
-	default: return "<unknown cmd>";
+	pr_out("Usage: devlink sb show [ DEV [ sb SB_INDEX ] ]\n");
+	pr_out("       devlink sb pool show [ DEV [ sb SB_INDEX ] pool POOL_INDEX ]\n");
+	pr_out("       devlink sb pool set DEV [ sb SB_INDEX ] pool POOL_INDEX\n");
+	pr_out("                           size POOL_SIZE thtype { static | dynamic }\n");
+	pr_out("       devlink sb port pool show [ DEV/PORT_INDEX [ sb SB_INDEX ]\n");
+	pr_out("                                   pool POOL_INDEX ]\n");
+	pr_out("       devlink sb port pool set DEV/PORT_INDEX [ sb SB_INDEX ]\n");
+	pr_out("                                pool POOL_INDEX th THRESHOLD\n");
+	pr_out("       devlink sb tc bind show [ DEV/PORT_INDEX [ sb SB_INDEX ] tc TC_INDEX\n");
+	pr_out("                                 type { ingress | egress } ]\n");
+	pr_out("       devlink sb tc bind set DEV/PORT_INDEX [ sb SB_INDEX ] tc TC_INDEX\n");
+	pr_out("                              type { ingress | egress } pool POOL_INDEX\n");
+	pr_out("                              th THRESHOLD\n");
+	pr_out("       devlink sb occupancy show { DEV | DEV/PORT_INDEX } [ sb SB_INDEX ]\n");
+	pr_out("       devlink sb occupancy snapshot DEV [ sb SB_INDEX ]\n");
+	pr_out("       devlink sb occupancy clearmax DEV [ sb SB_INDEX ]\n");
+}
+
+static void pr_out_sb(struct nlattr **tb)
+{
+	pr_out_handle(tb);
+	pr_out(": sb %u size %u ing_pools %u eg_pools %u ing_tcs %u eg_tcs %u\n",
+	       mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_INDEX]),
+	       mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_SIZE]),
+	       mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_INGRESS_POOL_COUNT]),
+	       mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_EGRESS_POOL_COUNT]),
+	       mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_INGRESS_TC_COUNT]),
+	       mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_EGRESS_TC_COUNT]));
+}
+
+static int cmd_sb_show_cb(const struct nlmsghdr *nlh, void *data)
+{
+	struct nlattr *tb[DEVLINK_ATTR_MAX + 1] = {};
+	struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
+
+	mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb);
+	if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME] ||
+	    !tb[DEVLINK_ATTR_SB_INDEX] || !tb[DEVLINK_ATTR_SB_SIZE] ||
+	    !tb[DEVLINK_ATTR_SB_INGRESS_POOL_COUNT] ||
+	    !tb[DEVLINK_ATTR_SB_EGRESS_POOL_COUNT] ||
+	    !tb[DEVLINK_ATTR_SB_INGRESS_TC_COUNT] ||
+	    !tb[DEVLINK_ATTR_SB_EGRESS_TC_COUNT])
+		return MNL_CB_ERROR;
+	pr_out_sb(tb);
+	return MNL_CB_OK;
+}
+
+static int cmd_sb_show(struct dl *dl)
+{
+	struct nlmsghdr *nlh;
+	uint16_t flags = NLM_F_REQUEST | NLM_F_ACK;
+	int err;
+
+	if (dl_argc(dl) == 0)
+		flags |= NLM_F_DUMP;
+
+	nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_SB_GET, flags);
+
+	if (dl_argc(dl) > 0) {
+		err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE, DL_OPT_SB);
+		if (err)
+			return err;
+	}
+
+	return _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_sb_show_cb, NULL);
+}
+
+static const char *pool_type_name(uint8_t type)
+{
+	switch (type) {
+	case DEVLINK_SB_POOL_TYPE_INGRESS: return "ingress";
+	case DEVLINK_SB_POOL_TYPE_EGRESS: return "egress";
+	default: return "<unknown type>";
+	}
+}
+
+static const char *threshold_type_name(uint8_t type)
+{
+	switch (type) {
+	case DEVLINK_SB_THRESHOLD_TYPE_STATIC: return "static";
+	case DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC: return "dynamic";
+	default: return "<unknown type>";
+	}
+}
+
+static void pr_out_sb_pool(struct nlattr **tb)
+{
+	pr_out_handle(tb);
+	pr_out(": sb %u pool %u type %s size %u thtype %s\n",
+	       mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_INDEX]),
+	       mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_POOL_INDEX]),
+	       pool_type_name(mnl_attr_get_u8(tb[DEVLINK_ATTR_SB_POOL_TYPE])),
+	       mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_POOL_SIZE]),
+	       threshold_type_name(mnl_attr_get_u8(tb[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE])));
+}
+
+static int cmd_sb_pool_show_cb(const struct nlmsghdr *nlh, void *data)
+{
+	struct nlattr *tb[DEVLINK_ATTR_MAX + 1] = {};
+	struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
+
+	mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb);
+	if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME] ||
+	    !tb[DEVLINK_ATTR_SB_INDEX] || !tb[DEVLINK_ATTR_SB_POOL_INDEX] ||
+	    !tb[DEVLINK_ATTR_SB_POOL_TYPE] || !tb[DEVLINK_ATTR_SB_POOL_SIZE] ||
+	    !tb[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE])
+		return MNL_CB_ERROR;
+	pr_out_sb_pool(tb);
+	return MNL_CB_OK;
+}
+
+static int cmd_sb_pool_show(struct dl *dl)
+{
+	struct nlmsghdr *nlh;
+	uint16_t flags = NLM_F_REQUEST | NLM_F_ACK;
+	int err;
+
+	if (dl_argc(dl) == 0)
+		flags |= NLM_F_DUMP;
+
+	nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_SB_POOL_GET, flags);
+
+	if (dl_argc(dl) > 0) {
+		err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE | DL_OPT_SB_POOL,
+					DL_OPT_SB);
+		if (err)
+			return err;
+	}
+
+	return _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_sb_pool_show_cb, NULL);
+}
+
+static int cmd_sb_pool_set(struct dl *dl)
+{
+	struct nlmsghdr *nlh;
+	int err;
+
+	nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_SB_POOL_SET,
+			       NLM_F_REQUEST | NLM_F_ACK);
+
+	err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE | DL_OPT_SB_POOL |
+				DL_OPT_SB_SIZE | DL_OPT_SB_THTYPE, DL_OPT_SB);
+	if (err)
+		return err;
+
+	return _mnlg_socket_sndrcv(dl->nlg, nlh, NULL, NULL);
+}
+
+static int cmd_sb_pool(struct dl *dl)
+{
+	if (dl_argv_match(dl, "help")) {
+		cmd_sb_help();
+		return 0;
+	} else if (dl_argv_match(dl, "show") ||
+		   dl_argv_match(dl, "list") || dl_no_arg(dl)) {
+		dl_arg_inc(dl);
+		return cmd_sb_pool_show(dl);
+	} else if (dl_argv_match(dl, "set")) {
+		dl_arg_inc(dl);
+		return cmd_sb_pool_set(dl);
+	}
+	pr_err("Command \"%s\" not found\n", dl_argv(dl));
+	return -ENOENT;
+}
+
+static void pr_out_sb_port_pool(struct dl *dl, struct nlattr **tb)
+{
+	pr_out_port_handle_nice(dl, tb);
+	pr_out(": sb %u pool %u threshold %u\n",
+	       mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_INDEX]),
+	       mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_POOL_INDEX]),
+	       mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_THRESHOLD]));
+}
+
+static int cmd_sb_port_pool_show_cb(const struct nlmsghdr *nlh, void *data)
+{
+	struct dl *dl = data;
+	struct nlattr *tb[DEVLINK_ATTR_MAX + 1] = {};
+	struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
+
+	mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb);
+	if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME] ||
+	    !tb[DEVLINK_ATTR_PORT_INDEX] || !tb[DEVLINK_ATTR_SB_INDEX] ||
+	    !tb[DEVLINK_ATTR_SB_POOL_INDEX] || !tb[DEVLINK_ATTR_SB_THRESHOLD])
+		return MNL_CB_ERROR;
+	pr_out_sb_port_pool(dl, tb);
+	return MNL_CB_OK;
+}
+
+static int cmd_sb_port_pool_show(struct dl *dl)
+{
+	struct nlmsghdr *nlh;
+	uint16_t flags = NLM_F_REQUEST | NLM_F_ACK;
+	int err;
+
+	if (dl_argc(dl) == 0)
+		flags |= NLM_F_DUMP;
+
+	nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_SB_PORT_POOL_GET, flags);
+
+	if (dl_argc(dl) > 0) {
+		err = dl_argv_parse_put(nlh, dl,
+					DL_OPT_HANDLEP | DL_OPT_SB_POOL,
+					DL_OPT_SB);
+		if (err)
+			return err;
+	}
+
+	return _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_sb_port_pool_show_cb, dl);
+}
+
+static int cmd_sb_port_pool_set(struct dl *dl)
+{
+	struct nlmsghdr *nlh;
+	int err;
+
+	nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_SB_PORT_POOL_SET,
+			       NLM_F_REQUEST | NLM_F_ACK);
+
+	err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLEP | DL_OPT_SB_POOL |
+				DL_OPT_SB_TH, DL_OPT_SB);
+	if (err)
+		return err;
+
+	return _mnlg_socket_sndrcv(dl->nlg, nlh, NULL, NULL);
+}
+
+static int cmd_sb_port_pool(struct dl *dl)
+{
+	if (dl_argv_match(dl, "help")) {
+		cmd_sb_help();
+		return 0;
+	} else if (dl_argv_match(dl, "show") ||
+		   dl_argv_match(dl, "list") || dl_no_arg(dl)) {
+		dl_arg_inc(dl);
+		return cmd_sb_port_pool_show(dl);
+	} else if (dl_argv_match(dl, "set")) {
+		dl_arg_inc(dl);
+		return cmd_sb_port_pool_set(dl);
+	}
+	pr_err("Command \"%s\" not found\n", dl_argv(dl));
+	return -ENOENT;
+}
+
+static int cmd_sb_port(struct dl *dl)
+{
+	if (dl_argv_match(dl, "help") || dl_no_arg(dl)) {
+		cmd_sb_help();
+		return 0;
+	} else if (dl_argv_match(dl, "pool")) {
+		dl_arg_inc(dl);
+		return cmd_sb_port_pool(dl);
+	}
+	pr_err("Command \"%s\" not found\n", dl_argv(dl));
+	return -ENOENT;
+}
+
+static void pr_out_sb_tc_bind(struct dl *dl, struct nlattr **tb)
+{
+	pr_out_port_handle_nice(dl, tb);
+	pr_out(": sb %u tc %u type %s pool %u threshold %u\n",
+	       mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_INDEX]),
+	       mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_TC_INDEX]),
+	       pool_type_name(mnl_attr_get_u8(tb[DEVLINK_ATTR_SB_POOL_TYPE])),
+	       mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_POOL_INDEX]),
+	       mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_THRESHOLD]));
+}
+
+static int cmd_sb_tc_bind_show_cb(const struct nlmsghdr *nlh, void *data)
+{
+	struct dl *dl = data;
+	struct nlattr *tb[DEVLINK_ATTR_MAX + 1] = {};
+	struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
+
+	mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb);
+	if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME] ||
+	    !tb[DEVLINK_ATTR_PORT_INDEX] || !tb[DEVLINK_ATTR_SB_INDEX] ||
+	    !tb[DEVLINK_ATTR_SB_TC_INDEX] || !tb[DEVLINK_ATTR_SB_POOL_TYPE] ||
+	    !tb[DEVLINK_ATTR_SB_POOL_INDEX] || !tb[DEVLINK_ATTR_SB_THRESHOLD])
+		return MNL_CB_ERROR;
+	pr_out_sb_tc_bind(dl, tb);
+	return MNL_CB_OK;
+}
+
+static int cmd_sb_tc_bind_show(struct dl *dl)
+{
+	struct nlmsghdr *nlh;
+	uint16_t flags = NLM_F_REQUEST | NLM_F_ACK;
+	int err;
+
+	if (dl_argc(dl) == 0)
+		flags |= NLM_F_DUMP;
+
+	nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_SB_TC_POOL_BIND_GET, flags);
+
+	if (dl_argc(dl) > 0) {
+		err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLEP | DL_OPT_SB_TC |
+					DL_OPT_SB_TYPE, DL_OPT_SB);
+		if (err)
+			return err;
+	}
+
+	return _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_sb_tc_bind_show_cb, dl);
+}
+
+static int cmd_sb_tc_bind_set(struct dl *dl)
+{
+	struct nlmsghdr *nlh;
+	int err;
+
+	nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_SB_TC_POOL_BIND_SET,
+			       NLM_F_REQUEST | NLM_F_ACK);
+
+	err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLEP | DL_OPT_SB_TC |
+				DL_OPT_SB_TYPE | DL_OPT_SB_POOL | DL_OPT_SB_TH,
+				DL_OPT_SB);
+	if (err)
+		return err;
+
+	return _mnlg_socket_sndrcv(dl->nlg, nlh, NULL, NULL);
+}
+
+static int cmd_sb_tc_bind(struct dl *dl)
+{
+	if (dl_argv_match(dl, "help")) {
+		cmd_sb_help();
+		return 0;
+	} else if (dl_argv_match(dl, "show") ||
+		   dl_argv_match(dl, "list") || dl_no_arg(dl)) {
+		dl_arg_inc(dl);
+		return cmd_sb_tc_bind_show(dl);
+	} else if (dl_argv_match(dl, "set")) {
+		dl_arg_inc(dl);
+		return cmd_sb_tc_bind_set(dl);
+	}
+	pr_err("Command \"%s\" not found\n", dl_argv(dl));
+	return -ENOENT;
+}
+
+static int cmd_sb_tc(struct dl *dl)
+{
+	if (dl_argv_match(dl, "help") || dl_no_arg(dl)) {
+		cmd_sb_help();
+		return 0;
+	} else if (dl_argv_match(dl, "bind")) {
+		dl_arg_inc(dl);
+		return cmd_sb_tc_bind(dl);
+	}
+	pr_err("Command \"%s\" not found\n", dl_argv(dl));
+	return -ENOENT;
+}
+
+struct occ_item {
+	struct list_head list;
+	uint32_t index;
+	uint32_t cur;
+	uint32_t max;
+	uint32_t bound_pool_index;
+};
+
+struct occ_port {
+	struct list_head list;
+	char *bus_name;
+	char *dev_name;
+	uint32_t port_index;
+	uint32_t sb_index;
+	struct list_head pool_list;
+	struct list_head ing_tc_list;
+	struct list_head eg_tc_list;
+};
+
+struct occ_show {
+	struct dl *dl;
+	int err;
+	struct list_head port_list;
+};
+
+static struct occ_item *occ_item_alloc(void)
+{
+	return calloc(1, sizeof(struct occ_item));
+}
+
+static void occ_item_free(struct occ_item *occ_item)
+{
+	free(occ_item);
+}
+
+static struct occ_port *occ_port_alloc(uint32_t port_index)
+{
+	struct occ_port *occ_port;
+
+	occ_port = calloc(1, sizeof(*occ_port));
+	if (!occ_port)
+		return NULL;
+	occ_port->port_index = port_index;
+	INIT_LIST_HEAD(&occ_port->pool_list);
+	INIT_LIST_HEAD(&occ_port->ing_tc_list);
+	INIT_LIST_HEAD(&occ_port->eg_tc_list);
+	return occ_port;
+}
+
+static void occ_port_free(struct occ_port *occ_port)
+{
+	struct occ_item *occ_item, *tmp;
+
+	list_for_each_entry_safe(occ_item, tmp, &occ_port->pool_list, list)
+		occ_item_free(occ_item);
+	list_for_each_entry_safe(occ_item, tmp, &occ_port->ing_tc_list, list)
+		occ_item_free(occ_item);
+	list_for_each_entry_safe(occ_item, tmp, &occ_port->eg_tc_list, list)
+		occ_item_free(occ_item);
+}
+
+static struct occ_show *occ_show_alloc(struct dl *dl)
+{
+	struct occ_show *occ_show;
+
+	occ_show = calloc(1, sizeof(*occ_show));
+	if (!occ_show)
+		return NULL;
+	occ_show->dl = dl;
+	INIT_LIST_HEAD(&occ_show->port_list);
+	return occ_show;
+}
+
+static void occ_show_free(struct occ_show *occ_show)
+{
+	struct occ_port *occ_port, *tmp;
+
+	list_for_each_entry_safe(occ_port, tmp, &occ_show->port_list, list)
+		occ_port_free(occ_port);
+}
+
+static struct occ_port *occ_port_get(struct occ_show *occ_show,
+				     struct nlattr **tb)
+{
+	struct occ_port *occ_port;
+	uint32_t port_index;
+
+	port_index = mnl_attr_get_u32(tb[DEVLINK_ATTR_PORT_INDEX]);
+
+	list_for_each_entry_reverse(occ_port, &occ_show->port_list, list) {
+		if (occ_port->port_index == port_index)
+			return occ_port;
+	}
+	occ_port = occ_port_alloc(port_index);
+	if (!occ_port)
+		return NULL;
+	list_add_tail(&occ_port->list, &occ_show->port_list);
+	return occ_port;
+}
+
+static void pr_out_occ_show_item_list(const char *label, struct list_head *list,
+				      bool bound_pool)
+{
+	struct occ_item *occ_item;
+	int i = 1;
+
+	pr_out_sp(7, "  %s:", label);
+	list_for_each_entry(occ_item, list, list) {
+		if ((i - 1) % 4 == 0 && i != 1)
+			pr_out_sp(7, " ");
+		if (bound_pool)
+			pr_out_sp(7, "%2u(%u):", occ_item->index,
+				  occ_item->bound_pool_index);
+		else
+			pr_out_sp(7, "%2u:", occ_item->index);
+		pr_out_sp(15, "%7u/%u", occ_item->cur, occ_item->max);
+		if (i++ % 4 == 0)
+			pr_out("\n");
+	}
+	if ((i - 1) % 4 != 0)
+		pr_out("\n");
+}
+
+static void pr_out_occ_show_port(struct occ_port *occ_port)
+{
+	pr_out_occ_show_item_list("pool", &occ_port->pool_list, false);
+	pr_out_occ_show_item_list("itc", &occ_port->ing_tc_list, true);
+	pr_out_occ_show_item_list("etc", &occ_port->eg_tc_list, true);
+}
+
+static void pr_out_occ_show(struct occ_show *occ_show)
+{
+	struct dl *dl = occ_show->dl;
+	struct dl_opts *opts = &dl->opts;
+	struct occ_port *occ_port;
+
+	list_for_each_entry(occ_port, &occ_show->port_list, list) {
+		__pr_out_port_handle_nice(dl, opts->bus_name, opts->dev_name,
+					  occ_port->port_index);
+		pr_out(":\n");
+		pr_out_occ_show_port(occ_port);
+	}
+}
+
+static void cmd_sb_occ_port_pool_process(struct occ_show *occ_show,
+					 struct nlattr **tb)
+{
+	struct occ_port *occ_port;
+	struct occ_item *occ_item;
+
+	if (occ_show->err || !dl_dump_filter(occ_show->dl, tb))
+		return;
+
+	occ_port = occ_port_get(occ_show, tb);
+	if (!occ_port) {
+		occ_show->err = -ENOMEM;
+		return;
+	}
+
+	occ_item = occ_item_alloc();
+	if (!occ_item) {
+		occ_show->err = -ENOMEM;
+		return;
+	}
+	occ_item->index = mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_POOL_INDEX]);
+	occ_item->cur = mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_OCC_CUR]);
+	occ_item->max = mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_OCC_MAX]);
+	list_add_tail(&occ_item->list, &occ_port->pool_list);
+}
+
+static int cmd_sb_occ_port_pool_process_cb(const struct nlmsghdr *nlh, void *data)
+{
+	struct occ_show *occ_show = data;
+	struct nlattr *tb[DEVLINK_ATTR_MAX + 1] = {};
+	struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
+
+	mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb);
+	if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME] ||
+	    !tb[DEVLINK_ATTR_PORT_INDEX] || !tb[DEVLINK_ATTR_SB_INDEX] ||
+	    !tb[DEVLINK_ATTR_SB_POOL_INDEX] ||
+	    !tb[DEVLINK_ATTR_SB_OCC_CUR] || !tb[DEVLINK_ATTR_SB_OCC_MAX])
+		return MNL_CB_ERROR;
+	cmd_sb_occ_port_pool_process(occ_show, tb);
+	return MNL_CB_OK;
+}
+
+static void cmd_sb_occ_tc_pool_process(struct occ_show *occ_show,
+				       struct nlattr **tb)
+{
+	struct occ_port *occ_port;
+	struct occ_item *occ_item;
+	uint8_t pool_type;
+
+	if (occ_show->err || !dl_dump_filter(occ_show->dl, tb))
+		return;
+
+	occ_port = occ_port_get(occ_show, tb);
+	if (!occ_port) {
+		occ_show->err = -ENOMEM;
+		return;
+	}
+
+	occ_item = occ_item_alloc();
+	if (!occ_item) {
+		occ_show->err = -ENOMEM;
+		return;
+	}
+	occ_item->index = mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_TC_INDEX]);
+	occ_item->cur = mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_OCC_CUR]);
+	occ_item->max = mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_OCC_MAX]);
+	occ_item->bound_pool_index =
+			mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_POOL_INDEX]);
+	pool_type = mnl_attr_get_u8(tb[DEVLINK_ATTR_SB_POOL_TYPE]);
+	if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS)
+		list_add_tail(&occ_item->list, &occ_port->ing_tc_list);
+	else if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS)
+		list_add_tail(&occ_item->list, &occ_port->eg_tc_list);
+	else
+		occ_item_free(occ_item);
+}
+
+static int cmd_sb_occ_tc_pool_process_cb(const struct nlmsghdr *nlh, void *data)
+{
+	struct occ_show *occ_show = data;
+	struct nlattr *tb[DEVLINK_ATTR_MAX + 1] = {};
+	struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
+
+	mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb);
+	if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME] ||
+	    !tb[DEVLINK_ATTR_PORT_INDEX] || !tb[DEVLINK_ATTR_SB_INDEX] ||
+	    !tb[DEVLINK_ATTR_SB_TC_INDEX] || !tb[DEVLINK_ATTR_SB_POOL_TYPE] ||
+	    !tb[DEVLINK_ATTR_SB_POOL_INDEX] ||
+	    !tb[DEVLINK_ATTR_SB_OCC_CUR] || !tb[DEVLINK_ATTR_SB_OCC_MAX])
+		return MNL_CB_ERROR;
+	cmd_sb_occ_tc_pool_process(occ_show, tb);
+	return MNL_CB_OK;
+}
+
+static int cmd_sb_occ_show(struct dl *dl)
+{
+	struct nlmsghdr *nlh;
+	struct occ_show *occ_show;
+	uint16_t flags = NLM_F_REQUEST | NLM_F_ACK | NLM_F_DUMP;
+	int err;
+
+	err = dl_argv_parse(dl, DL_OPT_HANDLE | DL_OPT_HANDLEP, DL_OPT_SB);
+	if (err)
+		return err;
+
+	occ_show = occ_show_alloc(dl);
+	if (!occ_show)
+		return -ENOMEM;
+
+	nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_SB_PORT_POOL_GET, flags);
+
+	err = _mnlg_socket_sndrcv(dl->nlg, nlh,
+				  cmd_sb_occ_port_pool_process_cb, occ_show);
+	if (err)
+		goto out;
+
+	nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_SB_TC_POOL_BIND_GET, flags);
+
+	err = _mnlg_socket_sndrcv(dl->nlg, nlh,
+				  cmd_sb_occ_tc_pool_process_cb, occ_show);
+	if (err)
+		goto out;
+
+	pr_out_occ_show(occ_show);
+
+out:
+	occ_show_free(occ_show);
+	return err;
+}
+
+static int cmd_sb_occ_snapshot(struct dl *dl)
+{
+	struct nlmsghdr *nlh;
+	int err;
+
+	nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_SB_OCC_SNAPSHOT,
+			       NLM_F_REQUEST | NLM_F_ACK);
+
+	err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE, DL_OPT_SB);
+	if (err)
+		return err;
+
+	return _mnlg_socket_sndrcv(dl->nlg, nlh, NULL, NULL);
+}
+
+static int cmd_sb_occ_clearmax(struct dl *dl)
+{
+	struct nlmsghdr *nlh;
+	int err;
+
+	nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_SB_OCC_MAX_CLEAR,
+			       NLM_F_REQUEST | NLM_F_ACK);
+
+	err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE, DL_OPT_SB);
+	if (err)
+		return err;
+
+	return _mnlg_socket_sndrcv(dl->nlg, nlh, NULL, NULL);
+}
+
+static int cmd_sb_occ(struct dl *dl)
+{
+	if (dl_argv_match(dl, "help") || dl_no_arg(dl)) {
+		cmd_sb_help();
+		return 0;
+	} else if (dl_argv_match(dl, "show") ||
+		   dl_argv_match(dl, "list")) {
+		dl_arg_inc(dl);
+		return cmd_sb_occ_show(dl);
+	} else if (dl_argv_match(dl, "snapshot")) {
+		dl_arg_inc(dl);
+		return cmd_sb_occ_snapshot(dl);
+	} else if (dl_argv_match(dl, "clearmax")) {
+		dl_arg_inc(dl);
+		return cmd_sb_occ_clearmax(dl);
+	}
+	pr_err("Command \"%s\" not found\n", dl_argv(dl));
+	return -ENOENT;
+}
+
+static int cmd_sb(struct dl *dl)
+{
+	if (dl_argv_match(dl, "help")) {
+		cmd_sb_help();
+		return 0;
+	} else if (dl_argv_match(dl, "show") ||
+		   dl_argv_match(dl, "list") || dl_no_arg(dl)) {
+		dl_arg_inc(dl);
+		return cmd_sb_show(dl);
+	} else if (dl_argv_match(dl, "pool")) {
+		dl_arg_inc(dl);
+		return cmd_sb_pool(dl);
+	} else if (dl_argv_match(dl, "port")) {
+		dl_arg_inc(dl);
+		return cmd_sb_port(dl);
+	} else if (dl_argv_match(dl, "tc")) {
+		dl_arg_inc(dl);
+		return cmd_sb_tc(dl);
+	} else if (dl_argv_match(dl, "occupancy")) {
+		dl_arg_inc(dl);
+		return cmd_sb_occ(dl);
+	}
+	pr_err("Command \"%s\" not found\n", dl_argv(dl));
+	return -ENOENT;
+}
+
+static const char *cmd_name(uint8_t cmd)
+{
+	switch (cmd) {
+	case DEVLINK_CMD_UNSPEC: return "unspec";
+	case DEVLINK_CMD_GET: return "get";
+	case DEVLINK_CMD_SET: return "set";
+	case DEVLINK_CMD_NEW: return "new";
+	case DEVLINK_CMD_DEL: return "del";
+	case DEVLINK_CMD_PORT_GET: return "get";
+	case DEVLINK_CMD_PORT_SET: return "set";
+	case DEVLINK_CMD_PORT_NEW: return "net";
+	case DEVLINK_CMD_PORT_DEL: return "del";
+	default: return "<unknown cmd>";
 	}
 }
 
@@ -860,8 +2011,8 @@ static int cmd_mon(struct dl *dl)
 static void help(void)
 {
 	pr_out("Usage: devlink [ OPTIONS ] OBJECT { COMMAND | help }\n"
-	       "where  OBJECT := { dev | port | monitor }\n"
-	       "       OPTIONS := { -V[ersion] }\n");
+	       "where  OBJECT := { dev | port | sb | monitor }\n"
+	       "       OPTIONS := { -V[ersion] | -n[no-nice-names] }\n");
 }
 
 static int dl_cmd(struct dl *dl)
@@ -875,6 +2026,9 @@ static int dl_cmd(struct dl *dl)
 	} else if (dl_argv_match(dl, "port")) {
 		dl_arg_inc(dl);
 		return cmd_port(dl);
+	} else if (dl_argv_match(dl, "sb")) {
+		dl_arg_inc(dl);
+		return cmd_sb(dl);
 	} else if (dl_argv_match(dl, "monitor")) {
 		dl_arg_inc(dl);
 		return cmd_mon(dl);
@@ -933,6 +2087,7 @@ int main(int argc, char **argv)
 {
 	static const struct option long_options[] = {
 		{ "Version",		no_argument,		NULL, 'V' },
+		{ "no-nice-names",	no_argument,		NULL, 'n' },
 		{ NULL, 0, NULL, 0 }
 	};
 	struct dl *dl;
@@ -940,13 +2095,22 @@ int main(int argc, char **argv)
 	int err;
 	int ret;
 
-	while ((opt = getopt_long(argc, argv, "V",
+	dl = dl_alloc();
+	if (!dl) {
+		pr_err("Failed to allocate memory for devlink\n");
+		return EXIT_FAILURE;
+	}
+
+	while ((opt = getopt_long(argc, argv, "Vn",
 				  long_options, NULL)) >= 0) {
 
 		switch (opt) {
 		case 'V':
 			printf("devlink utility, iproute2-ss%s\n", SNAPSHOT);
 			return EXIT_SUCCESS;
+		case 'n':
+			dl->no_nice_names = true;
+			break;
 		default:
 			pr_err("Unknown option.\n");
 			help();
@@ -957,12 +2121,6 @@ int main(int argc, char **argv)
 	argc -= optind;
 	argv += optind;
 
-	dl = dl_alloc();
-	if (!dl) {
-		pr_err("Failed to allocate memory for devlink\n");
-		return EXIT_FAILURE;
-	}
-
 	err = dl_init(dl, argc, argv);
 	if (err) {
 		ret = EXIT_FAILURE;

include/linux/devlink.h

@@ -33,6 +33,30 @@ enum devlink_command {
 	DEVLINK_CMD_PORT_SPLIT,
 	DEVLINK_CMD_PORT_UNSPLIT,
 
+	DEVLINK_CMD_SB_GET,		/* can dump */
+	DEVLINK_CMD_SB_SET,
+	DEVLINK_CMD_SB_NEW,
+	DEVLINK_CMD_SB_DEL,
+
+	DEVLINK_CMD_SB_POOL_GET,	/* can dump */
+	DEVLINK_CMD_SB_POOL_SET,
+	DEVLINK_CMD_SB_POOL_NEW,
+	DEVLINK_CMD_SB_POOL_DEL,
+
+	DEVLINK_CMD_SB_PORT_POOL_GET,	/* can dump */
+	DEVLINK_CMD_SB_PORT_POOL_SET,
+	DEVLINK_CMD_SB_PORT_POOL_NEW,
+	DEVLINK_CMD_SB_PORT_POOL_DEL,
+
+	DEVLINK_CMD_SB_TC_POOL_BIND_GET,	/* can dump */
+	DEVLINK_CMD_SB_TC_POOL_BIND_SET,
+	DEVLINK_CMD_SB_TC_POOL_BIND_NEW,
+	DEVLINK_CMD_SB_TC_POOL_BIND_DEL,
+
+	/* Shared buffer occupancy monitoring commands */
+	DEVLINK_CMD_SB_OCC_SNAPSHOT,
+	DEVLINK_CMD_SB_OCC_MAX_CLEAR,
+
 	/* add new commands above here */
 
 	__DEVLINK_CMD_MAX,
@@ -46,6 +70,31 @@ enum devlink_port_type {
 	DEVLINK_PORT_TYPE_IB,
 };
 
+enum devlink_sb_pool_type {
+	DEVLINK_SB_POOL_TYPE_INGRESS,
+	DEVLINK_SB_POOL_TYPE_EGRESS,
+};
+
+/* static threshold - limiting the maximum number of bytes.
+ * dynamic threshold - limiting the maximum number of bytes
+ *   based on the currently available free space in the shared buffer pool.
+ *   In this mode, the maximum quota is calculated based
+ *   on the following formula:
+ *     max_quota = alpha / (1 + alpha) * Free_Buffer
+ *   While Free_Buffer is the amount of none-occupied buffer associated to
+ *   the relevant pool.
+ *   The value range which can be passed is 0-20 and serves
+ *   for computation of alpha by following formula:
+ *     alpha = 2 ^ (passed_value - 10)
+ */
+
+enum devlink_sb_threshold_type {
+	DEVLINK_SB_THRESHOLD_TYPE_STATIC,
+	DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC,
+};
+
+#define DEVLINK_SB_THRESHOLD_TO_ALPHA_MAX 20
+
 enum devlink_attr {
 	/* don't change the order or add anything between, this is ABI! */
 	DEVLINK_ATTR_UNSPEC,
@@ -62,6 +111,20 @@ enum devlink_attr {
 	DEVLINK_ATTR_PORT_IBDEV_NAME,		/* string */
 	DEVLINK_ATTR_PORT_SPLIT_COUNT,		/* u32 */
 	DEVLINK_ATTR_PORT_SPLIT_GROUP,		/* u32 */
+	DEVLINK_ATTR_SB_INDEX,			/* u32 */
+	DEVLINK_ATTR_SB_SIZE,			/* u32 */
+	DEVLINK_ATTR_SB_INGRESS_POOL_COUNT,	/* u16 */
+	DEVLINK_ATTR_SB_EGRESS_POOL_COUNT,	/* u16 */
+	DEVLINK_ATTR_SB_INGRESS_TC_COUNT,	/* u16 */
+	DEVLINK_ATTR_SB_EGRESS_TC_COUNT,	/* u16 */
+	DEVLINK_ATTR_SB_POOL_INDEX,		/* u16 */
+	DEVLINK_ATTR_SB_POOL_TYPE,		/* u8 */
+	DEVLINK_ATTR_SB_POOL_SIZE,		/* u32 */
+	DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE,	/* u8 */
+	DEVLINK_ATTR_SB_THRESHOLD,		/* u32 */
+	DEVLINK_ATTR_SB_TC_INDEX,		/* u16 */
+	DEVLINK_ATTR_SB_OCC_CUR,		/* u32 */
+	DEVLINK_ATTR_SB_OCC_MAX,		/* u32 */
 
 	/* add new attributes above here, update the policy in devlink.c */
 

include/list.h

@@ -33,6 +33,11 @@ static inline void list_add(struct list_head *new, struct list_head *head)
 	__list_add(new, head, head->next);
 }
 
+static inline void list_add_tail(struct list_head *new, struct list_head *head)
+{
+	__list_add(new, head->prev, head);
+}
+
 static inline void __list_del(struct list_head *prev, struct list_head *next)
 {
 	next->prev = prev;
@@ -50,9 +55,15 @@ static inline void list_del(struct list_head *entry)
 #define list_first_entry(ptr, type, member) \
 	list_entry((ptr)->next, type, member)
 
+#define list_last_entry(ptr, type, member) \
+	list_entry((ptr)->prev, type, member)
+
 #define list_next_entry(pos, member) \
 	list_entry((pos)->member.next, typeof(*(pos)), member)
 
+#define list_prev_entry(pos, member) \
+	list_entry((pos)->member.prev, typeof(*(pos)), member)
+
 #define list_for_each_entry(pos, head, member)				\
 	for (pos = list_first_entry(head, typeof(*pos), member);	\
 	     &pos->member != (head);					\
@@ -64,6 +75,11 @@ static inline void list_del(struct list_head *entry)
 	     &pos->member != (head);					\
 	     pos = n, n = list_next_entry(n, member))
 
+#define list_for_each_entry_reverse(pos, head, member)			\
+	for (pos = list_last_entry(head, typeof(*pos), member);		\
+	     &pos->member != (head);					\
+	     pos = list_prev_entry(pos, member))
+
 struct hlist_head {
 	struct hlist_node *first;
 };

ip/ipneigh.c

@@ -430,6 +430,8 @@ static int do_show_or_flush(int argc, char **argv, int flush)
 		addattr32(&req.n, sizeof(req), NDA_IFINDEX, filter.index);
 	}
 
+	req.ndm.ndm_family = filter.family;
+
 	if (flush) {
 		int round = 0;
 		char flushb[4096-512];
@@ -440,7 +442,7 @@ static int do_show_or_flush(int argc, char **argv, int flush)
 		filter.state &= ~NUD_FAILED;
 
 		while (round < MAX_ROUNDS) {
-			if (rtnl_wilddump_request(&rth, filter.family, RTM_GETNEIGH) < 0) {
+			if (rtnl_dump_request_n(&rth, &req.n) < 0) {
 				perror("Cannot send dump request");
 				exit(1);
 			}
@@ -472,8 +474,6 @@ static int do_show_or_flush(int argc, char **argv, int flush)
 		return 1;
 	}
 
-	req.ndm.ndm_family = filter.family;
-
 	if (rtnl_dump_request_n(&rth, &req.n) < 0) {
 		perror("Cannot send dump request");
 		exit(1);

man/man8/devlink-dev.8

@@ -16,6 +16,7 @@ devlink-dev \- devlink device configuration
 .ti -8
 .IR OPTIONS " := { "
 \fB\-V\fR[\fIersion\fR] |
+\fB\-n\fR[\fIno-nice-names\fR] }
 
 .ti -8
 .B devlink dev show
@@ -51,6 +52,7 @@ Shows the state of specified devlink device.
 .SH SEE ALSO
 .BR devlink (8),
 .BR devlink-port (8),
+.BR devlink-sb (8),
 .BR devlink-monitor (8),
 .br
 

man/man8/devlink-monitor.8

@@ -29,6 +29,7 @@ opens Devlink Netlink socket, listens on it and dumps state changes.
 .SH SEE ALSO
 .BR devlink (8),
 .BR devlink-dev (8),
+.BR devlink-sb (8),
 .BR devlink-port (8),
 .br
 

man/man8/devlink-port.8

@@ -16,6 +16,7 @@ devlink-port \- devlink port configuration
 .ti -8
 .IR OPTIONS " := { "
 \fB\-V\fR[\fIersion\fR] |
+\fB\-n\fR[\fIno-nice-names\fR] }
 
 .ti -8
 .BR "devlink port set "
@@ -119,6 +120,7 @@ Unplit the specified previously split devlink port.
 .SH SEE ALSO
 .BR devlink (8),
 .BR devlink-dev (8),
+.BR devlink-sb (8),
 .BR devlink-monitor (8),
 .br
 

man/man8/devlink-sb.8

+.TH DEVLINK\-SB 8 "14 Apr 2016" "iproute2" "Linux"
+.SH NAME
+devlink-sb \- devlink shared buffer configuration
+.SH SYNOPSIS
+.sp
+.ad l
+.in +8
+.ti -8
+.B devlink
+.RI "[ " OPTIONS " ]"
+.B sb
+.RI  " { " COMMAND " | "
+.BR help " }"
+.sp
+
+.ti -8
+.IR OPTIONS " := { "
+\fB\-V\fR[\fIersion\fR] |
+\fB\-n\fR[\fIno-nice-names\fR] }
+
+.ti -8
+.BR "devlink sb show "
+.RI "[ " DEV " [ "
+.B sb
+.IR SB_INDEX " ] ]"
+
+.ti -8
+.BR "devlink sb pool show "
+.RI "[ " DEV " [ "
+.B sb
+.IR SB_INDEX " ] "
+.br
+.B pool
+.IR POOL_INDEX " ]"
+
+.ti -8
+.BI "devlink sb pool set " DEV "
+.RB "[ " sb
+.IR SB_INDEX " ] "
+.br
+.BI pool " POOL_INDEX "
+.br
+.BI size " POOL_SIZE "
+.br
+.BR thtype " { " static " | " dynamic " }"
+
+.ti -8
+.BR "devlink sb port pool show "
+.RI "[ " DEV/PORT_INDEX " [ "
+.B sb
+.IR SB_INDEX " ] "
+.br
+.B pool
+.IR POOL_INDEX " ]"
+
+.ti -8
+.BI "devlink sb port pool set " DEV/PORT_INDEX "
+.RB "[ " sb
+.IR SB_INDEX " ] "
+.br
+.BI pool " POOL_INDEX "
+.br
+.BI th " THRESHOLD "
+
+.ti -8
+.BR "devlink sb tc bind show "
+.RI "[ " DEV/PORT_INDEX " [ "
+.B sb
+.IR SB_INDEX " ] "
+.br
+.BI tc " TC_INDEX "
+.br
+.B type
+.RB "{ " ingress " | " egress " } ]"
+
+.ti -8
+.BI "devlink sb tc bind set " DEV/PORT_INDEX "
+.RB "[ " sb
+.IR SB_INDEX " ] "
+.br
+.BI tc " TC_INDEX "
+.br
+.BR type " { " ingress " | " egress " }"
+.br
+.BI pool " POOL_INDEX "
+.br
+.BI th " THRESHOLD "
+
+.ti -8
+.BR "devlink sb occupancy show "
+.RI "{ " DEV " | " DEV/PORT_INDEX " } [ "
+.B sb
+.IR SB_INDEX " ] "
+
+.ti -8
+.BR "devlink sb occupancy snapshot "
+.IR DEV " [ "
+.B sb
+.IR SB_INDEX " ]"
+
+.ti -8
+.BR "devlink sb occupancy clearmax "
+.IR DEV " [ "
+.B sb
+.IR SB_INDEX " ]"
+
+.ti -8
+.B devlink sb help
+
+.SH "DESCRIPTION"
+.SS devlink sb show - display available shared buffers and their attributes
+
+.PP
+.I "DEV"
+- specifies the devlink device to show shared buffers.
+If this argument is omitted all shared buffers of all devices are listed.
+
+.PP
+.I "SB_INDEX"
+- specifies the shared buffer.
+If this argument is omitted shared buffer with index 0 is selected.
+Behaviour of this argument it the same for every command.
+
+.SS devlink sb pool show - display available pools and their attributes
+
+.PP
+.I "DEV"
+- specifies the devlink device to show pools.
+If this argument is omitted all pools of all devices are listed.
+
+.SS devlink sb pool set - set attributes of pool
+
+.PP
+.I "DEV"
+- specifies the devlink device to set pool.
+
+.TP
+.BI size " POOL_SIZE"
+size of the pool in Bytes.
+
+.TP
+.BR thtype " { " static " | " dynamic " } "
+pool threshold type.
+
+.I static
+- Threshold values for the pool will be passed in Bytes.
+
+.I dynamic
+- Threshold values ("to_alpha") for the pool will be used to compute alpha parameter according to formula:
+.br
+.in +16
+alpha = 2 ^ (to_alpha - 10)
+.in -16
+
+.in +10
+The range of the passed value is between 0 to 20. The computed alpha is used to determine the maximum usage of the flow:
+.in -10
+.br
+.in +16
+max_usage = alpha / (1 + alpha) * Free_Buffer
+.in -16
+
+.SS devlink sb port pool show - display port-pool combinations and threshold for each
+.I "DEV/PORT_INDEX"
+- specifies the devlink port.
+
+.TP
+.BI pool " POOL_INDEX"
+pool index.
+
+.SS devlink sb port pool set - set port-pool threshold
+.I "DEV/PORT_INDEX"
+- specifies the devlink port.
+
+.TP
+.BI pool " POOL_INDEX"
+pool index.
+
+.TP
+.BI th " THRESHOLD"
+threshold value. Type of the value is either Bytes or "to_alpha", depends on
+.B thtype
+set for the pool.
+
+.SS devlink sb tc bind show - display port-TC to pool bindings and threshold for each
+
+.I "DEV/PORT_INDEX"
+- specifies the devlink port.
+
+.TP
+.BI tc " TC_INDEX"
+index of either ingress or egress TC, usually in range 0 to 8 (depends on device).
+
+.TP
+.BR type " { " ingress " | " egress " } "
+TC type.
+
+.SS devlink sb tc bind set - set port-TC to pool binding with specified threshold
+
+.I "DEV/PORT_INDEX"
+- specifies the devlink port.
+
+.TP
+.BI tc " TC_INDEX"
+index of either ingress or egress TC, usually in range 0 to 8 (depends on device).
+
+.TP
+.BR type " { " ingress " | " egress " } "
+TC type.
+
+.TP
+.BI pool " POOL_INDEX"
+index of pool to bind this to.
+
+.TP
+.BI th " THRESHOLD"
+threshold value. Type of the value is either Bytes or "to_alpha", depends on
+.B thtype
+set for the pool.
+
+.SS devlink sb occupancy show - display shared buffer occupancy values for device or port
+
+.PP
+This command is used to browse shared buffer occupancy values. Values are showed for every port-pool combination as well as for all port-TC combinations (with pool this port-TC is bound to). Format of value is:
+.br
+.in +16
+current_value/max_value
+.in -16
+Note that before showing values, one has to issue
+.b occupancy snapshot
+command first.
+
+.PP
+.I "DEV"
+- specifies the devlink device to show occupancy values for.
+
+.I "DEV/PORT_INDEX"
+- specifies the devlink port to show occupancy values for.
+
+.SS devlink sb occupancy snapshot - take occupancy snapshot of shared buffer for device
+This command is used to take a snapshot of shared buffer occupancy values. After that, the values can be showed using
+.B occupancy show
+command.
+
+.PP
+.I "DEV"
+- specifies the devlink device to take occupancy snapshot on.
+
+.SS devlink sb occupancy clearmax - clear occupancy watermarks of shared buffer for device
+This command is used to reset maximal occupancy values reached for whole device. Note that before browsing reset values, one has to issue
+.B occupancy snapshot
+command.
+
+.PP
+.I "DEV"
+- specifies the devlink device to clear occupancy watermarks on.
+
+.SH "EXAMPLES"
+.PP
+devlink sb show
+.RS 4
+List available share buffers.
+.RE
+.PP
+devlink sb pool show
+.RS 4
+List available pools and their config.
+.RE
+.PP
+devlink sb port pool show pci/0000:03:00.0/1 pool 0
+.RS 4
+Show port-pool setup for specified port and pool.
+.RE
+.PP
+sudo devlink sb port pool set pci/0000:03:00.0/1 pool 0 th 15
+.RS 4
+Change threshold for port specified port and pool.
+.RE
+.PP
+devlink sb tc bind show pci/0000:03:00.0/1 tc 0 type ingress
+.RS 4
+Show pool binding and threshold for specified port and TC.
+.RE
+.PP
+sudo devlink sb tc bind set pci/0000:03:00.0/1 tc 0 type ingress pool 0 th 9
+.RS 4
+Set pool binding and threshold for specified port and TC.
+.RE
+.PP
+sudo devlink sb occupancy snapshot pci/0000:03:00.0
+.RS 4
+Make a snapshot of occupancy of shared buffer for specified devlink device.
+.RE
+.PP
+devlink sb occupancy show pci/0000:03:00.0/1
+.RS 4
+Show occupancy for specified port from the snapshot.
+.RE
+.PP
+sudo devlink sb occupancy clearmax pci/0000:03:00.0
+.RS 4
+Clear watermarks for shared buffer of specified devlink device.
+
+
+.SH SEE ALSO
+.BR devlink (8),
+.BR devlink-dev (8),
+.BR devlink-port (8),
+.BR devlink-monitor (8),
+.br
+
+.SH AUTHOR
+Jiri Pirko <jiri@mellanox.com>

man/man8/devlink.8

@@ -19,6 +19,7 @@ devlink \- Devlink tool
 .ti -8
 .IR OPTIONS " := { "
 \fB\-V\fR[\fIersion\fR] |
+\fB\-n\fR[\fIno-nice-names\fR] }
 
 .SH OPTIONS
 
@@ -28,6 +29,10 @@ Print the version of the
 .B devlink
 utility and exit.
 
+.TP
+.BR "\-n" , " -no-nice-names"
+Turn off printing out nice names, for example netdevice ifnames instead of devlink port identification.
+
 .SS
 .I OBJECT
 

misc/ss.c

@@ -267,7 +267,7 @@ static void filter_default_dbs(struct filter *f)
 static void filter_states_set(struct filter *f, int states)
 {
 	if (states)
-		f->states = (f->states | states) & states;
+		f->states = states;
 }
 
 static void filter_merge_defaults(struct filter *f)
@@ -1556,9 +1556,10 @@ void *parse_hostcond(char *addr, bool is_port)
 
 out:
 	if (fam != AF_UNSPEC) {
+		int states = f->states;
 		f->families = 0;
 		filter_af_set(f, fam);
-		filter_states_set(f, 0);
+		filter_states_set(f, states);
 	}
 
 	res = malloc(sizeof(*res));
@@ -2018,7 +2019,8 @@ static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
 		s.segs_out = info->tcpi_segs_out;
 		s.segs_in = info->tcpi_segs_in;
 		s.not_sent = info->tcpi_notsent_bytes;
-		s.min_rtt = (double) info->tcpi_min_rtt / 1000;
+		if (info->tcpi_min_rtt && info->tcpi_min_rtt != ~0U)
+			s.min_rtt = (double) info->tcpi_min_rtt / 1000;
 		tcp_stats_print(&s);
 		free(s.dctcp);
 	}