/* * devlink.c Devlink tool * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. * * Authors: Jiri Pirko */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include "SNAPSHOT.h" #include "list.h" #include "mnlg.h" #include "json_writer.h" #include "utils.h" #define ESWITCH_MODE_LEGACY "legacy" #define ESWITCH_MODE_SWITCHDEV "switchdev" #define ESWITCH_INLINE_MODE_NONE "none" #define ESWITCH_INLINE_MODE_LINK "link" #define ESWITCH_INLINE_MODE_NETWORK "network" #define ESWITCH_INLINE_MODE_TRANSPORT "transport" #define PARAM_CMODE_RUNTIME_STR "runtime" #define PARAM_CMODE_DRIVERINIT_STR "driverinit" #define PARAM_CMODE_PERMANENT_STR "permanent" static int g_new_line_count; #define pr_err(args...) fprintf(stderr, ##args) #define pr_out(args...) \ do { \ if (g_indent_newline) { \ fprintf(stdout, "%s", g_indent_str); \ g_indent_newline = false; \ } \ fprintf(stdout, ##args); \ g_new_line_count = 0; \ } while (0) #define pr_out_sp(num, args...) \ do { \ int ret = fprintf(stdout, ##args); \ if (ret < num) \ fprintf(stdout, "%*s", num - ret, ""); \ g_new_line_count = 0; \ } while (0) static int g_indent_level; static bool g_indent_newline; #define INDENT_STR_STEP 2 #define INDENT_STR_MAXLEN 32 static char g_indent_str[INDENT_STR_MAXLEN + 1] = ""; static void __pr_out_indent_inc(void) { if (g_indent_level + INDENT_STR_STEP > INDENT_STR_MAXLEN) return; g_indent_level += INDENT_STR_STEP; memset(g_indent_str, ' ', sizeof(g_indent_str)); g_indent_str[g_indent_level] = '\0'; } static void __pr_out_indent_dec(void) { if (g_indent_level - INDENT_STR_STEP < 0) return; g_indent_level -= INDENT_STR_STEP; g_indent_str[g_indent_level] = '\0'; } static void __pr_out_newline(void) { if (g_new_line_count < 1) { pr_out("\n"); g_indent_newline = true; } g_new_line_count++; } static int _mnlg_socket_recv_run(struct mnlg_socket *nlg, mnl_cb_t data_cb, void *data) { int err; err = mnlg_socket_recv_run(nlg, data_cb, data); if (err < 0) { pr_err("devlink answers: %s\n", strerror(errno)); return -errno; } return 0; } static int _mnlg_socket_sndrcv(struct mnlg_socket *nlg, const struct nlmsghdr *nlh, mnl_cb_t data_cb, void *data) { int err; err = mnlg_socket_send(nlg, nlh); if (err < 0) { pr_err("Failed to call mnlg_socket_send\n"); return -errno; } return _mnlg_socket_recv_run(nlg, data_cb, data); } static int _mnlg_socket_group_add(struct mnlg_socket *nlg, const char *group_name) { int err; err = mnlg_socket_group_add(nlg, group_name); if (err < 0) { pr_err("Failed to call mnlg_socket_group_add\n"); return -errno; } return 0; } struct ifname_map { struct list_head list; char *bus_name; char *dev_name; uint32_t port_index; char *ifname; }; static struct ifname_map *ifname_map_alloc(const char *bus_name, const char *dev_name, uint32_t port_index, const char *ifname) { struct ifname_map *ifname_map; ifname_map = calloc(1, sizeof(*ifname_map)); if (!ifname_map) return NULL; ifname_map->bus_name = strdup(bus_name); ifname_map->dev_name = strdup(dev_name); ifname_map->port_index = port_index; ifname_map->ifname = strdup(ifname); if (!ifname_map->bus_name || !ifname_map->dev_name || !ifname_map->ifname) { free(ifname_map->ifname); free(ifname_map->dev_name); free(ifname_map->bus_name); free(ifname_map); return NULL; } return ifname_map; } static void ifname_map_free(struct ifname_map *ifname_map) { free(ifname_map->ifname); free(ifname_map->dev_name); free(ifname_map->bus_name); free(ifname_map); } #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) #define DL_OPT_ESWITCH_MODE BIT(11) #define DL_OPT_ESWITCH_INLINE_MODE BIT(12) #define DL_OPT_DPIPE_TABLE_NAME BIT(13) #define DL_OPT_DPIPE_TABLE_COUNTERS BIT(14) #define DL_OPT_ESWITCH_ENCAP_MODE BIT(15) #define DL_OPT_RESOURCE_PATH BIT(16) #define DL_OPT_RESOURCE_SIZE BIT(17) #define DL_OPT_PARAM_NAME BIT(18) #define DL_OPT_PARAM_VALUE BIT(19) #define DL_OPT_PARAM_CMODE BIT(20) #define DL_OPT_HANDLE_REGION BIT(21) #define DL_OPT_REGION_SNAPSHOT_ID BIT(22) #define DL_OPT_REGION_ADDRESS BIT(23) #define DL_OPT_REGION_LENGTH BIT(24) 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; enum devlink_eswitch_mode eswitch_mode; enum devlink_eswitch_inline_mode eswitch_inline_mode; const char *dpipe_table_name; bool dpipe_counters_enable; bool eswitch_encap_mode; const char *resource_path; uint32_t resource_size; uint32_t resource_id; bool resource_id_valid; const char *param_name; const char *param_value; enum devlink_param_cmode cmode; char *region_name; uint32_t region_snapshot_id; uint64_t region_address; uint64_t region_length; }; struct dl { struct mnlg_socket *nlg; struct list_head ifname_map_list; int argc; char **argv; bool no_nice_names; struct dl_opts opts; json_writer_t *jw; bool json_output; bool pretty_output; bool verbose; struct { bool present; char *bus_name; char *dev_name; uint32_t port_index; } arr_last; }; static int dl_argc(struct dl *dl) { return dl->argc; } static char *dl_argv(struct dl *dl) { if (dl_argc(dl) == 0) return NULL; return *dl->argv; } static void dl_arg_inc(struct dl *dl) { if (dl_argc(dl) == 0) return; dl->argc--; dl->argv++; } static char *dl_argv_next(struct dl *dl) { char *ret; if (dl_argc(dl) == 0) return NULL; ret = *dl->argv; dl_arg_inc(dl); return ret; } static char *dl_argv_index(struct dl *dl, unsigned int index) { if (index >= dl_argc(dl)) return NULL; return dl->argv[index]; } static int strcmpx(const char *str1, const char *str2) { if (strlen(str1) > strlen(str2)) return -1; return strncmp(str1, str2, strlen(str1)); } static bool dl_argv_match(struct dl *dl, const char *pattern) { if (dl_argc(dl) == 0) return false; return strcmpx(dl_argv(dl), pattern) == 0; } static bool dl_no_arg(struct dl *dl) { return dl_argc(dl) == 0; } static const enum mnl_attr_data_type devlink_policy[DEVLINK_ATTR_MAX + 1] = { [DEVLINK_ATTR_BUS_NAME] = MNL_TYPE_NUL_STRING, [DEVLINK_ATTR_DEV_NAME] = MNL_TYPE_NUL_STRING, [DEVLINK_ATTR_PORT_INDEX] = MNL_TYPE_U32, [DEVLINK_ATTR_PORT_TYPE] = MNL_TYPE_U16, [DEVLINK_ATTR_PORT_DESIRED_TYPE] = MNL_TYPE_U16, [DEVLINK_ATTR_PORT_NETDEV_IFINDEX] = MNL_TYPE_U32, [DEVLINK_ATTR_PORT_NETDEV_NAME] = MNL_TYPE_NUL_STRING, [DEVLINK_ATTR_PORT_IBDEV_NAME] = MNL_TYPE_NUL_STRING, [DEVLINK_ATTR_SB_INDEX] = MNL_TYPE_U32, [DEVLINK_ATTR_SB_SIZE] = MNL_TYPE_U32, [DEVLINK_ATTR_SB_INGRESS_POOL_COUNT] = MNL_TYPE_U16, [DEVLINK_ATTR_SB_EGRESS_POOL_COUNT] = MNL_TYPE_U16, [DEVLINK_ATTR_SB_INGRESS_TC_COUNT] = MNL_TYPE_U16, [DEVLINK_ATTR_SB_EGRESS_TC_COUNT] = MNL_TYPE_U16, [DEVLINK_ATTR_SB_POOL_INDEX] = MNL_TYPE_U16, [DEVLINK_ATTR_SB_POOL_TYPE] = MNL_TYPE_U8, [DEVLINK_ATTR_SB_POOL_SIZE] = MNL_TYPE_U32, [DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE] = MNL_TYPE_U8, [DEVLINK_ATTR_SB_THRESHOLD] = MNL_TYPE_U32, [DEVLINK_ATTR_SB_TC_INDEX] = MNL_TYPE_U16, [DEVLINK_ATTR_SB_OCC_CUR] = MNL_TYPE_U32, [DEVLINK_ATTR_SB_OCC_MAX] = MNL_TYPE_U32, [DEVLINK_ATTR_ESWITCH_MODE] = MNL_TYPE_U16, [DEVLINK_ATTR_ESWITCH_INLINE_MODE] = MNL_TYPE_U8, [DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = MNL_TYPE_U8, [DEVLINK_ATTR_DPIPE_TABLES] = MNL_TYPE_NESTED, [DEVLINK_ATTR_DPIPE_TABLE] = MNL_TYPE_NESTED, [DEVLINK_ATTR_DPIPE_TABLE_NAME] = MNL_TYPE_STRING, [DEVLINK_ATTR_DPIPE_TABLE_SIZE] = MNL_TYPE_U64, [DEVLINK_ATTR_DPIPE_TABLE_MATCHES] = MNL_TYPE_NESTED, [DEVLINK_ATTR_DPIPE_TABLE_ACTIONS] = MNL_TYPE_NESTED, [DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED] = MNL_TYPE_U8, [DEVLINK_ATTR_DPIPE_ENTRIES] = MNL_TYPE_NESTED, [DEVLINK_ATTR_DPIPE_ENTRY] = MNL_TYPE_NESTED, [DEVLINK_ATTR_DPIPE_ENTRY_INDEX] = MNL_TYPE_U64, [DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES] = MNL_TYPE_NESTED, [DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES] = MNL_TYPE_NESTED, [DEVLINK_ATTR_DPIPE_ENTRY_COUNTER] = MNL_TYPE_U64, [DEVLINK_ATTR_DPIPE_MATCH] = MNL_TYPE_NESTED, [DEVLINK_ATTR_DPIPE_MATCH_VALUE] = MNL_TYPE_NESTED, [DEVLINK_ATTR_DPIPE_MATCH_TYPE] = MNL_TYPE_U32, [DEVLINK_ATTR_DPIPE_ACTION] = MNL_TYPE_NESTED, [DEVLINK_ATTR_DPIPE_ACTION_VALUE] = MNL_TYPE_NESTED, [DEVLINK_ATTR_DPIPE_ACTION_TYPE] = MNL_TYPE_U32, [DEVLINK_ATTR_DPIPE_VALUE_MAPPING] = MNL_TYPE_U32, [DEVLINK_ATTR_DPIPE_HEADERS] = MNL_TYPE_NESTED, [DEVLINK_ATTR_DPIPE_HEADER] = MNL_TYPE_NESTED, [DEVLINK_ATTR_DPIPE_HEADER_NAME] = MNL_TYPE_STRING, [DEVLINK_ATTR_DPIPE_HEADER_ID] = MNL_TYPE_U32, [DEVLINK_ATTR_DPIPE_HEADER_FIELDS] = MNL_TYPE_NESTED, [DEVLINK_ATTR_DPIPE_HEADER_GLOBAL] = MNL_TYPE_U8, [DEVLINK_ATTR_DPIPE_HEADER_INDEX] = MNL_TYPE_U32, [DEVLINK_ATTR_DPIPE_FIELD] = MNL_TYPE_NESTED, [DEVLINK_ATTR_DPIPE_FIELD_NAME] = MNL_TYPE_STRING, [DEVLINK_ATTR_DPIPE_FIELD_ID] = MNL_TYPE_U32, [DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH] = MNL_TYPE_U32, [DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE] = MNL_TYPE_U32, [DEVLINK_ATTR_PARAM] = MNL_TYPE_NESTED, [DEVLINK_ATTR_PARAM_NAME] = MNL_TYPE_STRING, [DEVLINK_ATTR_PARAM_TYPE] = MNL_TYPE_U8, [DEVLINK_ATTR_PARAM_VALUES_LIST] = MNL_TYPE_NESTED, [DEVLINK_ATTR_PARAM_VALUE] = MNL_TYPE_NESTED, [DEVLINK_ATTR_PARAM_VALUE_CMODE] = MNL_TYPE_U8, [DEVLINK_ATTR_REGION_NAME] = MNL_TYPE_STRING, [DEVLINK_ATTR_REGION_SIZE] = MNL_TYPE_U64, [DEVLINK_ATTR_REGION_SNAPSHOTS] = MNL_TYPE_NESTED, [DEVLINK_ATTR_REGION_SNAPSHOT] = MNL_TYPE_NESTED, [DEVLINK_ATTR_REGION_SNAPSHOT_ID] = MNL_TYPE_U32, [DEVLINK_ATTR_REGION_CHUNKS] = MNL_TYPE_NESTED, [DEVLINK_ATTR_REGION_CHUNK] = MNL_TYPE_NESTED, [DEVLINK_ATTR_REGION_CHUNK_DATA] = MNL_TYPE_BINARY, [DEVLINK_ATTR_REGION_CHUNK_ADDR] = MNL_TYPE_U64, [DEVLINK_ATTR_REGION_CHUNK_LEN] = MNL_TYPE_U64, }; static int attr_cb(const struct nlattr *attr, void *data) { const struct nlattr **tb = data; int type; if (mnl_attr_type_valid(attr, DEVLINK_ATTR_MAX) < 0) return MNL_CB_OK; type = mnl_attr_get_type(attr); if (mnl_attr_validate(attr, devlink_policy[type]) < 0) return MNL_CB_ERROR; tb[type] = attr; return MNL_CB_OK; } static int ifname_map_cb(const struct nlmsghdr *nlh, void *data) { struct nlattr *tb[DEVLINK_ATTR_MAX + 1] = {}; struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); struct dl *dl = data; struct ifname_map *ifname_map; const char *bus_name; const char *dev_name; uint32_t port_ifindex; const char *port_ifname; 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]) return MNL_CB_ERROR; if (!tb[DEVLINK_ATTR_PORT_NETDEV_NAME]) return MNL_CB_OK; bus_name = mnl_attr_get_str(tb[DEVLINK_ATTR_BUS_NAME]); dev_name = mnl_attr_get_str(tb[DEVLINK_ATTR_DEV_NAME]); port_ifindex = mnl_attr_get_u32(tb[DEVLINK_ATTR_PORT_INDEX]); port_ifname = mnl_attr_get_str(tb[DEVLINK_ATTR_PORT_NETDEV_NAME]); ifname_map = ifname_map_alloc(bus_name, dev_name, port_ifindex, port_ifname); if (!ifname_map) return MNL_CB_ERROR; list_add(&ifname_map->list, &dl->ifname_map_list); return MNL_CB_OK; } static void ifname_map_fini(struct dl *dl) { struct ifname_map *ifname_map, *tmp; list_for_each_entry_safe(ifname_map, tmp, &dl->ifname_map_list, list) { list_del(&ifname_map->list); ifname_map_free(ifname_map); } } static int ifname_map_init(struct dl *dl) { struct nlmsghdr *nlh; int err; INIT_LIST_HEAD(&dl->ifname_map_list); nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_PORT_GET, NLM_F_REQUEST | NLM_F_ACK | NLM_F_DUMP); err = _mnlg_socket_sndrcv(dl->nlg, nlh, ifname_map_cb, dl); if (err) { ifname_map_fini(dl); return err; } return 0; } static int ifname_map_lookup(struct dl *dl, const char *ifname, char **p_bus_name, char **p_dev_name, uint32_t *p_port_index) { struct ifname_map *ifname_map; list_for_each_entry(ifname_map, &dl->ifname_map_list, list) { if (strcmp(ifname, ifname_map->ifname) == 0) { *p_bus_name = ifname_map->bus_name; *p_dev_name = ifname_map->dev_name; *p_port_index = ifname_map->port_index; return 0; } } 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; char *pos = str; while ((pos = strchr(pos, '/'))) { count++; pos++; } return count; } static int strslashrsplit(char *str, char **before, char **after) { char *slash; slash = strrchr(str, '/'); if (!slash) return -EINVAL; *slash = '\0'; *before = str; *after = slash + 1; return 0; } static int strtouint64_t(const char *str, uint64_t *p_val) { char *endptr; unsigned long long int val; val = strtoull(str, &endptr, 10); if (endptr == str || *endptr != '\0') return -EINVAL; if (val > ULONG_MAX) return -ERANGE; *p_val = val; return 0; } static int strtouint32_t(const char *str, uint32_t *p_val) { char *endptr; unsigned long int val; val = strtoul(str, &endptr, 10); if (endptr == str || *endptr != '\0') return -EINVAL; if (val > UINT_MAX) return -ERANGE; *p_val = val; return 0; } 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 strtouint8_t(const char *str, uint8_t *p_val) { char *endptr; unsigned long int val; val = strtoul(str, &endptr, 10); if (endptr == str || *endptr != '\0') return -EINVAL; if (val > UCHAR_MAX) return -ERANGE; *p_val = val; return 0; } static int strtobool(const char *str, bool *p_val) { bool val; if (!strcmp(str, "true") || !strcmp(str, "1")) val = true; else if (!strcmp(str, "false") || !strcmp(str, "0")) val = false; else return -EINVAL; *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); if (!str) { pr_err("Devlink identification (\"bus_name/dev_name\") expected\n"); return -EINVAL; } if (strslashcount(str) != 1) { pr_err("Wrong devlink identification string format.\n"); 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; char *portstr; int err; err = strslashrsplit(str, &handlestr, &portstr); if (err) { pr_err("Port identification \"%s\" is invalid\n", str); return err; } 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; } err = strslashrsplit(handlestr, p_bus_name, p_dev_name); if (err) { pr_err("Port identification \"%s\" is invalid\n", str); return err; } return 0; } 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_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; if (!str) { pr_err("Port identification (\"bus_name/dev_name/port_index\" or \"netdev ifname\") expected.\n"); return -EINVAL; } slash_count = strslashcount(str); switch (slash_count) { case 0: return __dl_argv_handle_port_ifname(dl, str, p_bus_name, p_dev_name, p_port_index); case 2: return __dl_argv_handle_port(str, p_bus_name, p_dev_name, p_port_index); default: pr_err("Wrong port identification string format.\n"); pr_err("Expected \"bus_name/dev_name/port_index\" or \"netdev_ifname\".\n"); return -EINVAL; } } 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; *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 = __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; } return 0; } static int __dl_argv_handle_region(char *str, char **p_bus_name, char **p_dev_name, char **p_region) { char *handlestr; int err; err = strslashrsplit(str, &handlestr, p_region); if (err) { pr_err("Region identification \"%s\" is invalid\n", str); return err; } err = strslashrsplit(handlestr, p_bus_name, p_dev_name); if (err) { pr_err("Region identification \"%s\" is invalid\n", str); return err; } return 0; } static int dl_argv_handle_region(struct dl *dl, char **p_bus_name, char **p_dev_name, char **p_region) { char *str = dl_argv_next(dl); unsigned int slash_count; if (!str) { pr_err("Expected \"bus_name/dev_name/region\" identification.\n"); return -EINVAL; } slash_count = strslashcount(str); if (slash_count != 2) { pr_err("Wrong region identification string format.\n"); pr_err("Expected \"bus_name/dev_name/region\" identification.\n"".\n"); return -EINVAL; } return __dl_argv_handle_region(str, p_bus_name, p_dev_name, p_region); } static int dl_argv_uint64_t(struct dl *dl, uint64_t *p_val) { char *str = dl_argv_next(dl); int err; if (!str) { pr_err("Unsigned number argument expected\n"); return -EINVAL; } err = strtouint64_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_uint32_t(struct dl *dl, uint32_t *p_val) { char *str = dl_argv_next(dl); int err; if (!str) { pr_err("Unsigned number argument expected\n"); return -EINVAL; } err = strtouint32_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_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); if (!str) { pr_err("String parameter expected\n"); return -EINVAL; } *p_str = str; return 0; } static int port_type_get(const char *typestr, enum devlink_port_type *p_type) { if (strcmp(typestr, "auto") == 0) { *p_type = DEVLINK_PORT_TYPE_AUTO; } else if (strcmp(typestr, "eth") == 0) { *p_type = DEVLINK_PORT_TYPE_ETH; } else if (strcmp(typestr, "ib") == 0) { *p_type = DEVLINK_PORT_TYPE_IB; } else { pr_err("Unknown port type \"%s\"\n", typestr); return -EINVAL; } return 0; } 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 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 eswitch_mode_get(const char *typestr, enum devlink_eswitch_mode *p_mode) { if (strcmp(typestr, ESWITCH_MODE_LEGACY) == 0) { *p_mode = DEVLINK_ESWITCH_MODE_LEGACY; } else if (strcmp(typestr, ESWITCH_MODE_SWITCHDEV) == 0) { *p_mode = DEVLINK_ESWITCH_MODE_SWITCHDEV; } else { pr_err("Unknown eswitch mode \"%s\"\n", typestr); return -EINVAL; } return 0; } static int eswitch_inline_mode_get(const char *typestr, enum devlink_eswitch_inline_mode *p_mode) { if (strcmp(typestr, ESWITCH_INLINE_MODE_NONE) == 0) { *p_mode = DEVLINK_ESWITCH_INLINE_MODE_NONE; } else if (strcmp(typestr, ESWITCH_INLINE_MODE_LINK) == 0) { *p_mode = DEVLINK_ESWITCH_INLINE_MODE_LINK; } else if (strcmp(typestr, ESWITCH_INLINE_MODE_NETWORK) == 0) { *p_mode = DEVLINK_ESWITCH_INLINE_MODE_NETWORK; } else if (strcmp(typestr, ESWITCH_INLINE_MODE_TRANSPORT) == 0) { *p_mode = DEVLINK_ESWITCH_INLINE_MODE_TRANSPORT; } else { pr_err("Unknown eswitch inline mode \"%s\"\n", typestr); return -EINVAL; } return 0; } static int dpipe_counters_enable_get(const char *typestr, bool *counters_enable) { if (strcmp(typestr, "enable") == 0) { *counters_enable = 1; } else if (strcmp(typestr, "disable") == 0) { *counters_enable = 0; } else { pr_err("Unknown counter_state \"%s\"\n", typestr); return -EINVAL; } return 0; } static int eswitch_encap_mode_get(const char *typestr, bool *p_mode) { if (strcmp(typestr, "enable") == 0) { *p_mode = true; } else if (strcmp(typestr, "disable") == 0) { *p_mode = false; } else { pr_err("Unknown eswitch encap mode \"%s\"\n", typestr); return -EINVAL; } return 0; } static int param_cmode_get(const char *cmodestr, enum devlink_param_cmode *cmode) { if (strcmp(cmodestr, PARAM_CMODE_RUNTIME_STR) == 0) { *cmode = DEVLINK_PARAM_CMODE_RUNTIME; } else if (strcmp(cmodestr, PARAM_CMODE_DRIVERINIT_STR) == 0) { *cmode = DEVLINK_PARAM_CMODE_DRIVERINIT; } else if (strcmp(cmodestr, PARAM_CMODE_PERMANENT_STR) == 0) { *cmode = DEVLINK_PARAM_CMODE_PERMANENT; } else { pr_err("Unknown configuration mode \"%s\"\n", cmodestr); 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 && o_required & DL_OPT_HANDLEP) { uint32_t 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_handle_port(dl, &opts->bus_name, &opts->dev_name, &opts->port_index); if (err) return err; o_found |= DL_OPT_HANDLEP; } else if (o_required & DL_OPT_HANDLE_REGION) { err = dl_argv_handle_region(dl, &opts->bus_name, &opts->dev_name, &opts->region_name); if (err) return err; o_found |= DL_OPT_HANDLE_REGION; } while (dl_argc(dl)) { if (dl_argv_match(dl, "type") && (o_all & DL_OPT_PORT_TYPE)) { const char *typestr; dl_arg_inc(dl); err = dl_argv_str(dl, &typestr); if (err) return err; err = port_type_get(typestr, &opts->port_type); if (err) return err; o_found |= DL_OPT_PORT_TYPE; } else if (dl_argv_match(dl, "count") && (o_all & DL_OPT_PORT_COUNT)) { dl_arg_inc(dl); err = dl_argv_uint32_t(dl, &opts->port_count); if (err) return err; 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 if (dl_argv_match(dl, "mode") && (o_all & DL_OPT_ESWITCH_MODE)) { const char *typestr; dl_arg_inc(dl); err = dl_argv_str(dl, &typestr); if (err) return err; err = eswitch_mode_get(typestr, &opts->eswitch_mode); if (err) return err; o_found |= DL_OPT_ESWITCH_MODE; } else if (dl_argv_match(dl, "inline-mode") && (o_all & DL_OPT_ESWITCH_INLINE_MODE)) { const char *typestr; dl_arg_inc(dl); err = dl_argv_str(dl, &typestr); if (err) return err; err = eswitch_inline_mode_get( typestr, &opts->eswitch_inline_mode); if (err) return err; o_found |= DL_OPT_ESWITCH_INLINE_MODE; } else if (dl_argv_match(dl, "name") && (o_all & DL_OPT_DPIPE_TABLE_NAME)) { dl_arg_inc(dl); err = dl_argv_str(dl, &opts->dpipe_table_name); if (err) return err; o_found |= DL_OPT_DPIPE_TABLE_NAME; } else if (dl_argv_match(dl, "counters") && (o_all & DL_OPT_DPIPE_TABLE_COUNTERS)) { const char *typestr; dl_arg_inc(dl); err = dl_argv_str(dl, &typestr); if (err) return err; err = dpipe_counters_enable_get(typestr, &opts->dpipe_counters_enable); if (err) return err; o_found |= DL_OPT_DPIPE_TABLE_COUNTERS; } else if (dl_argv_match(dl, "encap") && (o_all & DL_OPT_ESWITCH_ENCAP_MODE)) { const char *typestr; dl_arg_inc(dl); err = dl_argv_str(dl, &typestr); if (err) return err; err = eswitch_encap_mode_get(typestr, &opts->eswitch_encap_mode); if (err) return err; o_found |= DL_OPT_ESWITCH_ENCAP_MODE; } else if (dl_argv_match(dl, "path") && (o_all & DL_OPT_RESOURCE_PATH)) { dl_arg_inc(dl); err = dl_argv_str(dl, &opts->resource_path); if (err) return err; o_found |= DL_OPT_RESOURCE_PATH; } else if (dl_argv_match(dl, "size") && (o_all & DL_OPT_RESOURCE_SIZE)) { dl_arg_inc(dl); err = dl_argv_uint32_t(dl, &opts->resource_size); if (err) return err; o_found |= DL_OPT_RESOURCE_SIZE; } else if (dl_argv_match(dl, "name") && (o_all & DL_OPT_PARAM_NAME)) { dl_arg_inc(dl); err = dl_argv_str(dl, &opts->param_name); if (err) return err; o_found |= DL_OPT_PARAM_NAME; } else if (dl_argv_match(dl, "value") && (o_all & DL_OPT_PARAM_VALUE)) { dl_arg_inc(dl); err = dl_argv_str(dl, &opts->param_value); if (err) return err; o_found |= DL_OPT_PARAM_VALUE; } else if (dl_argv_match(dl, "cmode") && (o_all & DL_OPT_PARAM_CMODE)) { const char *cmodestr; dl_arg_inc(dl); err = dl_argv_str(dl, &cmodestr); if (err) return err; err = param_cmode_get(cmodestr, &opts->cmode); if (err) return err; o_found |= DL_OPT_PARAM_CMODE; } else if (dl_argv_match(dl, "snapshot") && (o_all & DL_OPT_REGION_SNAPSHOT_ID)) { dl_arg_inc(dl); err = dl_argv_uint32_t(dl, &opts->region_snapshot_id); if (err) return err; o_found |= DL_OPT_REGION_SNAPSHOT_ID; } else if (dl_argv_match(dl, "address") && (o_all & DL_OPT_REGION_ADDRESS)) { dl_arg_inc(dl); err = dl_argv_uint64_t(dl, &opts->region_address); if (err) return err; o_found |= DL_OPT_REGION_ADDRESS; } else if (dl_argv_match(dl, "length") && (o_all & DL_OPT_REGION_LENGTH)) { dl_arg_inc(dl); err = dl_argv_uint64_t(dl, &opts->region_length); if (err) return err; o_found |= DL_OPT_REGION_LENGTH; } 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; } if ((o_required & DL_OPT_PORT_COUNT) && !(o_found & DL_OPT_PORT_COUNT)) { pr_err("Port split count option expected.\n"); 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; } if ((o_required & DL_OPT_ESWITCH_MODE) && !(o_found & DL_OPT_ESWITCH_MODE)) { pr_err("E-Switch mode option expected.\n"); return -EINVAL; } if ((o_required & DL_OPT_ESWITCH_INLINE_MODE) && !(o_found & DL_OPT_ESWITCH_INLINE_MODE)) { pr_err("E-Switch inline-mode option expected.\n"); return -EINVAL; } if ((o_required & DL_OPT_DPIPE_TABLE_NAME) && !(o_found & DL_OPT_DPIPE_TABLE_NAME)) { pr_err("Dpipe table name expected\n"); return -EINVAL; } if ((o_required & DL_OPT_DPIPE_TABLE_COUNTERS) && !(o_found & DL_OPT_DPIPE_TABLE_COUNTERS)) { pr_err("Dpipe table counter state expected\n"); return -EINVAL; } if ((o_required & DL_OPT_ESWITCH_ENCAP_MODE) && !(o_found & DL_OPT_ESWITCH_ENCAP_MODE)) { pr_err("E-Switch encapsulation option expected.\n"); return -EINVAL; } if ((o_required & DL_OPT_PARAM_NAME) && !(o_found & DL_OPT_PARAM_NAME)) { pr_err("Parameter name expected.\n"); return -EINVAL; } if ((o_required & DL_OPT_PARAM_VALUE) && !(o_found & DL_OPT_PARAM_VALUE)) { pr_err("Value to set expected.\n"); return -EINVAL; } if ((o_required & DL_OPT_PARAM_CMODE) && !(o_found & DL_OPT_PARAM_CMODE)) { pr_err("Configuration mode expected.\n"); return -EINVAL; } if ((o_required & DL_OPT_REGION_SNAPSHOT_ID) && !(o_found & DL_OPT_REGION_SNAPSHOT_ID)) { pr_err("Region snapshot id expected.\n"); return -EINVAL; } if ((o_required & DL_OPT_REGION_ADDRESS) && !(o_found & DL_OPT_REGION_ADDRESS)) { pr_err("Region address value expected.\n"); return -EINVAL; } if ((o_required & DL_OPT_REGION_LENGTH) && !(o_found & DL_OPT_REGION_LENGTH)) { pr_err("Region length value 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); } else if (opts->present & DL_OPT_HANDLE_REGION) { 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_strz(nlh, DEVLINK_ATTR_REGION_NAME, opts->region_name); } 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); if (opts->present & DL_OPT_ESWITCH_MODE) mnl_attr_put_u16(nlh, DEVLINK_ATTR_ESWITCH_MODE, opts->eswitch_mode); if (opts->present & DL_OPT_ESWITCH_INLINE_MODE) mnl_attr_put_u8(nlh, DEVLINK_ATTR_ESWITCH_INLINE_MODE, opts->eswitch_inline_mode); if (opts->present & DL_OPT_DPIPE_TABLE_NAME) mnl_attr_put_strz(nlh, DEVLINK_ATTR_DPIPE_TABLE_NAME, opts->dpipe_table_name); if (opts->present & DL_OPT_DPIPE_TABLE_COUNTERS) mnl_attr_put_u8(nlh, DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED, opts->dpipe_counters_enable); if (opts->present & DL_OPT_ESWITCH_ENCAP_MODE) mnl_attr_put_u8(nlh, DEVLINK_ATTR_ESWITCH_ENCAP_MODE, opts->eswitch_encap_mode); if ((opts->present & DL_OPT_RESOURCE_PATH) && opts->resource_id_valid) mnl_attr_put_u64(nlh, DEVLINK_ATTR_RESOURCE_ID, opts->resource_id); if (opts->present & DL_OPT_RESOURCE_SIZE) mnl_attr_put_u64(nlh, DEVLINK_ATTR_RESOURCE_SIZE, opts->resource_size); if (opts->present & DL_OPT_PARAM_NAME) mnl_attr_put_strz(nlh, DEVLINK_ATTR_PARAM_NAME, opts->param_name); if (opts->present & DL_OPT_PARAM_CMODE) mnl_attr_put_u8(nlh, DEVLINK_ATTR_PARAM_VALUE_CMODE, opts->cmode); if (opts->present & DL_OPT_REGION_SNAPSHOT_ID) mnl_attr_put_u32(nlh, DEVLINK_ATTR_REGION_SNAPSHOT_ID, opts->region_snapshot_id); if (opts->present & DL_OPT_REGION_ADDRESS) mnl_attr_put_u64(nlh, DEVLINK_ATTR_REGION_CHUNK_ADDR, opts->region_address); if (opts->present & DL_OPT_REGION_LENGTH) mnl_attr_put_u64(nlh, DEVLINK_ATTR_REGION_CHUNK_LEN, opts->region_length); } 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_err("Usage: devlink dev show [ DEV ]\n"); pr_err(" devlink dev eswitch set DEV [ mode { legacy | switchdev } ]\n"); pr_err(" [ inline-mode { none | link | network | transport } ]\n"); pr_err(" [ encap { disable | enable } ]\n"); pr_err(" devlink dev eswitch show DEV\n"); pr_err(" devlink dev param set DEV name PARAMETER value VALUE cmode { permanent | driverinit | runtime }\n"); pr_err(" devlink dev param show [DEV name PARAMETER]\n"); pr_err(" devlink dev reload DEV\n"); } static bool cmp_arr_last_handle(struct dl *dl, const char *bus_name, const char *dev_name) { if (!dl->arr_last.present) return false; return strcmp(dl->arr_last.bus_name, bus_name) == 0 && strcmp(dl->arr_last.dev_name, dev_name) == 0; } static void arr_last_handle_set(struct dl *dl, const char *bus_name, const char *dev_name) { dl->arr_last.present = true; free(dl->arr_last.dev_name); free(dl->arr_last.bus_name); dl->arr_last.bus_name = strdup(bus_name); dl->arr_last.dev_name = strdup(dev_name); } static bool should_arr_last_handle_start(struct dl *dl, const char *bus_name, const char *dev_name) { return !cmp_arr_last_handle(dl, bus_name, dev_name); } static bool should_arr_last_handle_end(struct dl *dl, const char *bus_name, const char *dev_name) { return dl->arr_last.present && !cmp_arr_last_handle(dl, bus_name, dev_name); } static void __pr_out_handle_start(struct dl *dl, struct nlattr **tb, bool content, bool array) { const char *bus_name = mnl_attr_get_str(tb[DEVLINK_ATTR_BUS_NAME]); const char *dev_name = mnl_attr_get_str(tb[DEVLINK_ATTR_DEV_NAME]); char buf[32]; sprintf(buf, "%s/%s", bus_name, dev_name); if (dl->json_output) { if (array) { if (should_arr_last_handle_end(dl, bus_name, dev_name)) jsonw_end_array(dl->jw); if (should_arr_last_handle_start(dl, bus_name, dev_name)) { jsonw_name(dl->jw, buf); jsonw_start_array(dl->jw); jsonw_start_object(dl->jw); arr_last_handle_set(dl, bus_name, dev_name); } else { jsonw_start_object(dl->jw); } } else { jsonw_name(dl->jw, buf); jsonw_start_object(dl->jw); } } else { if (array) { if (should_arr_last_handle_end(dl, bus_name, dev_name)) __pr_out_indent_dec(); if (should_arr_last_handle_start(dl, bus_name, dev_name)) { pr_out("%s%s", buf, content ? ":" : ""); __pr_out_newline(); __pr_out_indent_inc(); arr_last_handle_set(dl, bus_name, dev_name); } } else { pr_out("%s%s", buf, content ? ":" : ""); } } } static void pr_out_handle_start_arr(struct dl *dl, struct nlattr **tb) { __pr_out_handle_start(dl, tb, true, true); } static void pr_out_handle_end(struct dl *dl) { if (dl->json_output) jsonw_end_object(dl->jw); else __pr_out_newline(); } static void pr_out_handle(struct dl *dl, struct nlattr **tb) { __pr_out_handle_start(dl, tb, false, false); pr_out_handle_end(dl); } static bool cmp_arr_last_port_handle(struct dl *dl, const char *bus_name, const char *dev_name, uint32_t port_index) { return cmp_arr_last_handle(dl, bus_name, dev_name) && dl->arr_last.port_index == port_index; } static void arr_last_port_handle_set(struct dl *dl, const char *bus_name, const char *dev_name, uint32_t port_index) { arr_last_handle_set(dl, bus_name, dev_name); dl->arr_last.port_index = port_index; } static bool should_arr_last_port_handle_start(struct dl *dl, const char *bus_name, const char *dev_name, uint32_t port_index) { return !cmp_arr_last_port_handle(dl, bus_name, dev_name, port_index); } static bool should_arr_last_port_handle_end(struct dl *dl, const char *bus_name, const char *dev_name, uint32_t port_index) { return dl->arr_last.present && !cmp_arr_last_port_handle(dl, bus_name, dev_name, port_index); } static void __pr_out_port_handle_start(struct dl *dl, const char *bus_name, const char *dev_name, uint32_t port_index, bool try_nice, bool array) { static char buf[32]; char *ifname = NULL; if (dl->no_nice_names || !try_nice || ifname_map_rev_lookup(dl, bus_name, dev_name, port_index, &ifname) != 0) sprintf(buf, "%s/%s/%d", bus_name, dev_name, port_index); else sprintf(buf, "%s", ifname); if (dl->json_output) { if (array) { if (should_arr_last_port_handle_end(dl, bus_name, dev_name, port_index)) jsonw_end_array(dl->jw); if (should_arr_last_port_handle_start(dl, bus_name, dev_name, port_index)) { jsonw_name(dl->jw, buf); jsonw_start_array(dl->jw); jsonw_start_object(dl->jw); arr_last_port_handle_set(dl, bus_name, dev_name, port_index); } else { jsonw_start_object(dl->jw); } } else { jsonw_name(dl->jw, buf); jsonw_start_object(dl->jw); } } else { pr_out("%s:", buf); } } static void pr_out_port_handle_start(struct dl *dl, struct nlattr **tb, bool try_nice) { 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_start(dl, bus_name, dev_name, port_index, try_nice, false); } static void pr_out_port_handle_start_arr(struct dl *dl, struct nlattr **tb, bool try_nice) { 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_start(dl, bus_name, dev_name, port_index, try_nice, true); } static void pr_out_port_handle_end(struct dl *dl) { if (dl->json_output) jsonw_end_object(dl->jw); else pr_out("\n"); } static void pr_out_str(struct dl *dl, const char *name, const char *val) { if (dl->json_output) { jsonw_string_field(dl->jw, name, val); } else { if (g_indent_newline) pr_out("%s %s", name, val); else pr_out(" %s %s", name, val); } } static void pr_out_bool(struct dl *dl, const char *name, bool val) { if (val) pr_out_str(dl, name, "true"); else pr_out_str(dl, name, "false"); } static void pr_out_uint(struct dl *dl, const char *name, unsigned int val) { if (dl->json_output) { jsonw_uint_field(dl->jw, name, val); } else { if (g_indent_newline) pr_out("%s %u", name, val); else pr_out(" %s %u", name, val); } } static void pr_out_u64(struct dl *dl, const char *name, uint64_t val) { if (val == (uint64_t) -1) return pr_out_str(dl, name, "unlimited"); return pr_out_uint(dl, name, val); } static void pr_out_region_chunk_start(struct dl *dl, uint64_t addr) { if (dl->json_output) { jsonw_name(dl->jw, "address"); jsonw_uint(dl->jw, addr); jsonw_name(dl->jw, "data"); jsonw_start_array(dl->jw); } } static void pr_out_region_chunk_end(struct dl *dl) { if (dl->json_output) jsonw_end_array(dl->jw); } static void pr_out_region_chunk(struct dl *dl, uint8_t *data, uint32_t len, uint64_t addr) { static uint64_t align_val; uint32_t i = 0; pr_out_region_chunk_start(dl, addr); while (i < len) { if (!dl->json_output) if (!(align_val % 16)) pr_out("%s%016"PRIx64" ", align_val ? "\n" : "", addr); align_val++; if (dl->json_output) jsonw_printf(dl->jw, "%d", data[i]); else pr_out("%02x ", data[i]); addr++; i++; } pr_out_region_chunk_end(dl); } static void pr_out_dev(struct dl *dl, struct nlattr **tb) { pr_out_handle(dl, tb); } static void pr_out_section_start(struct dl *dl, const char *name) { if (dl->json_output) { jsonw_start_object(dl->jw); jsonw_name(dl->jw, name); jsonw_start_object(dl->jw); } } static void pr_out_section_end(struct dl *dl) { if (dl->json_output) { if (dl->arr_last.present) jsonw_end_array(dl->jw); jsonw_end_object(dl->jw); jsonw_end_object(dl->jw); } } static void pr_out_array_start(struct dl *dl, const char *name) { if (dl->json_output) { jsonw_name(dl->jw, name); jsonw_start_array(dl->jw); } else { __pr_out_indent_inc(); __pr_out_newline(); pr_out("%s:", name); __pr_out_indent_inc(); __pr_out_newline(); } } static void pr_out_array_end(struct dl *dl) { if (dl->json_output) { jsonw_end_array(dl->jw); } else { __pr_out_indent_dec(); __pr_out_indent_dec(); } } static void pr_out_entry_start(struct dl *dl) { if (dl->json_output) jsonw_start_object(dl->jw); } static void pr_out_entry_end(struct dl *dl) { if (dl->json_output) jsonw_end_object(dl->jw); else __pr_out_newline(); } static const char *param_cmode_name(uint8_t cmode) { switch (cmode) { case DEVLINK_PARAM_CMODE_RUNTIME: return PARAM_CMODE_RUNTIME_STR; case DEVLINK_PARAM_CMODE_DRIVERINIT: return PARAM_CMODE_DRIVERINIT_STR; case DEVLINK_PARAM_CMODE_PERMANENT: return PARAM_CMODE_PERMANENT_STR; default: return ""; } } static const char *eswitch_mode_name(uint32_t mode) { switch (mode) { case DEVLINK_ESWITCH_MODE_LEGACY: return ESWITCH_MODE_LEGACY; case DEVLINK_ESWITCH_MODE_SWITCHDEV: return ESWITCH_MODE_SWITCHDEV; default: return ""; } } static const char *eswitch_inline_mode_name(uint32_t mode) { switch (mode) { case DEVLINK_ESWITCH_INLINE_MODE_NONE: return ESWITCH_INLINE_MODE_NONE; case DEVLINK_ESWITCH_INLINE_MODE_LINK: return ESWITCH_INLINE_MODE_LINK; case DEVLINK_ESWITCH_INLINE_MODE_NETWORK: return ESWITCH_INLINE_MODE_NETWORK; case DEVLINK_ESWITCH_INLINE_MODE_TRANSPORT: return ESWITCH_INLINE_MODE_TRANSPORT; default: return ""; } } static void pr_out_eswitch(struct dl *dl, struct nlattr **tb) { __pr_out_handle_start(dl, tb, true, false); if (tb[DEVLINK_ATTR_ESWITCH_MODE]) pr_out_str(dl, "mode", eswitch_mode_name(mnl_attr_get_u16(tb[DEVLINK_ATTR_ESWITCH_MODE]))); if (tb[DEVLINK_ATTR_ESWITCH_INLINE_MODE]) pr_out_str(dl, "inline-mode", eswitch_inline_mode_name(mnl_attr_get_u8( tb[DEVLINK_ATTR_ESWITCH_INLINE_MODE]))); if (tb[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]) { bool encap_mode = !!mnl_attr_get_u8(tb[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]); pr_out_str(dl, "encap", encap_mode ? "enable" : "disable"); } pr_out_handle_end(dl); } static int cmd_dev_eswitch_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]) return MNL_CB_ERROR; pr_out_eswitch(dl, tb); return MNL_CB_OK; } static int cmd_dev_eswitch_show(struct dl *dl) { struct nlmsghdr *nlh; int err; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_ESWITCH_GET, NLM_F_REQUEST | NLM_F_ACK); err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE, 0); if (err) return err; pr_out_section_start(dl, "dev"); err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_dev_eswitch_show_cb, dl); pr_out_section_end(dl); return err; } static int cmd_dev_eswitch_set(struct dl *dl) { struct nlmsghdr *nlh; int err; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_ESWITCH_SET, NLM_F_REQUEST | NLM_F_ACK); err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE, DL_OPT_ESWITCH_MODE | DL_OPT_ESWITCH_INLINE_MODE | DL_OPT_ESWITCH_ENCAP_MODE); if (err) return err; if (dl->opts.present == 1) { pr_err("Need to set at least one option\n"); return -ENOENT; } return _mnlg_socket_sndrcv(dl->nlg, nlh, NULL, NULL); } static int cmd_dev_eswitch(struct dl *dl) { if (dl_argv_match(dl, "help") || dl_no_arg(dl)) { cmd_dev_help(); return 0; } else if (dl_argv_match(dl, "set")) { dl_arg_inc(dl); return cmd_dev_eswitch_set(dl); } else if (dl_argv_match(dl, "show")) { dl_arg_inc(dl); return cmd_dev_eswitch_show(dl); } pr_err("Command \"%s\" not found\n", dl_argv(dl)); return -ENOENT; } static void pr_out_param_value(struct dl *dl, int nla_type, struct nlattr *nl) { struct nlattr *nla_value[DEVLINK_ATTR_MAX + 1] = {}; struct nlattr *val_attr; int err; err = mnl_attr_parse_nested(nl, attr_cb, nla_value); if (err != MNL_CB_OK) return; if (!nla_value[DEVLINK_ATTR_PARAM_VALUE_CMODE] || (nla_type != MNL_TYPE_FLAG && !nla_value[DEVLINK_ATTR_PARAM_VALUE_DATA])) return; pr_out_str(dl, "cmode", param_cmode_name(mnl_attr_get_u8(nla_value[DEVLINK_ATTR_PARAM_VALUE_CMODE]))); val_attr = nla_value[DEVLINK_ATTR_PARAM_VALUE_DATA]; switch (nla_type) { case MNL_TYPE_U8: pr_out_uint(dl, "value", mnl_attr_get_u8(val_attr)); break; case MNL_TYPE_U16: pr_out_uint(dl, "value", mnl_attr_get_u16(val_attr)); break; case MNL_TYPE_U32: pr_out_uint(dl, "value", mnl_attr_get_u32(val_attr)); break; case MNL_TYPE_STRING: pr_out_str(dl, "value", mnl_attr_get_str(val_attr)); break; case MNL_TYPE_FLAG: pr_out_bool(dl, "value", val_attr ? true : false); break; } } static void pr_out_param(struct dl *dl, struct nlattr **tb, bool array) { struct nlattr *nla_param[DEVLINK_ATTR_MAX + 1] = {}; struct nlattr *param_value_attr; int nla_type; int err; err = mnl_attr_parse_nested(tb[DEVLINK_ATTR_PARAM], attr_cb, nla_param); if (err != MNL_CB_OK) return; if (!nla_param[DEVLINK_ATTR_PARAM_NAME] || !nla_param[DEVLINK_ATTR_PARAM_TYPE] || !nla_param[DEVLINK_ATTR_PARAM_VALUES_LIST]) return; if (array) pr_out_handle_start_arr(dl, tb); else __pr_out_handle_start(dl, tb, true, false); nla_type = mnl_attr_get_u8(nla_param[DEVLINK_ATTR_PARAM_TYPE]); pr_out_str(dl, "name", mnl_attr_get_str(nla_param[DEVLINK_ATTR_PARAM_NAME])); if (!nla_param[DEVLINK_ATTR_PARAM_GENERIC]) pr_out_str(dl, "type", "driver-specific"); else pr_out_str(dl, "type", "generic"); pr_out_array_start(dl, "values"); mnl_attr_for_each_nested(param_value_attr, nla_param[DEVLINK_ATTR_PARAM_VALUES_LIST]) { pr_out_entry_start(dl); pr_out_param_value(dl, nla_type, param_value_attr); pr_out_entry_end(dl); } pr_out_array_end(dl); pr_out_handle_end(dl); } static int cmd_dev_param_show_cb(const struct nlmsghdr *nlh, void *data) { struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); struct nlattr *tb[DEVLINK_ATTR_MAX + 1] = {}; struct dl *dl = data; mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb); if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME] || !tb[DEVLINK_ATTR_PARAM]) return MNL_CB_ERROR; pr_out_param(dl, tb, true); return MNL_CB_OK; } struct param_ctx { struct dl *dl; int nla_type; union { uint8_t vu8; uint16_t vu16; uint32_t vu32; const char *vstr; bool vbool; } value; }; static int cmd_dev_param_set_cb(const struct nlmsghdr *nlh, void *data) { struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); struct nlattr *nla_param[DEVLINK_ATTR_MAX + 1] = {}; struct nlattr *tb[DEVLINK_ATTR_MAX + 1] = {}; struct nlattr *param_value_attr; enum devlink_param_cmode cmode; struct param_ctx *ctx = data; struct dl *dl = ctx->dl; int nla_type; int err; mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb); if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME] || !tb[DEVLINK_ATTR_PARAM]) return MNL_CB_ERROR; err = mnl_attr_parse_nested(tb[DEVLINK_ATTR_PARAM], attr_cb, nla_param); if (err != MNL_CB_OK) return MNL_CB_ERROR; if (!nla_param[DEVLINK_ATTR_PARAM_TYPE] || !nla_param[DEVLINK_ATTR_PARAM_VALUES_LIST]) return MNL_CB_ERROR; nla_type = mnl_attr_get_u8(nla_param[DEVLINK_ATTR_PARAM_TYPE]); mnl_attr_for_each_nested(param_value_attr, nla_param[DEVLINK_ATTR_PARAM_VALUES_LIST]) { struct nlattr *nla_value[DEVLINK_ATTR_MAX + 1] = {}; struct nlattr *val_attr; err = mnl_attr_parse_nested(param_value_attr, attr_cb, nla_value); if (err != MNL_CB_OK) return MNL_CB_ERROR; if (!nla_value[DEVLINK_ATTR_PARAM_VALUE_CMODE] || (nla_type != MNL_TYPE_FLAG && !nla_value[DEVLINK_ATTR_PARAM_VALUE_DATA])) return MNL_CB_ERROR; cmode = mnl_attr_get_u8(nla_value[DEVLINK_ATTR_PARAM_VALUE_CMODE]); if (cmode == dl->opts.cmode) { val_attr = nla_value[DEVLINK_ATTR_PARAM_VALUE_DATA]; switch (nla_type) { case MNL_TYPE_U8: ctx->value.vu8 = mnl_attr_get_u8(val_attr); break; case MNL_TYPE_U16: ctx->value.vu16 = mnl_attr_get_u16(val_attr); break; case MNL_TYPE_U32: ctx->value.vu32 = mnl_attr_get_u32(val_attr); break; case MNL_TYPE_STRING: ctx->value.vstr = mnl_attr_get_str(val_attr); break; case MNL_TYPE_FLAG: ctx->value.vbool = val_attr ? true : false; break; } break; } } ctx->nla_type = nla_type; return MNL_CB_OK; } static int cmd_dev_param_set(struct dl *dl) { struct param_ctx ctx = {}; struct nlmsghdr *nlh; uint32_t val_u32; uint16_t val_u16; uint8_t val_u8; bool val_bool; int err; err = dl_argv_parse(dl, DL_OPT_HANDLE | DL_OPT_PARAM_NAME | DL_OPT_PARAM_VALUE | DL_OPT_PARAM_CMODE, 0); if (err) return err; /* Get value type */ nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_PARAM_GET, NLM_F_REQUEST | NLM_F_ACK); dl_opts_put(nlh, dl); ctx.dl = dl; err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_dev_param_set_cb, &ctx); if (err) return err; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_PARAM_SET, NLM_F_REQUEST | NLM_F_ACK); dl_opts_put(nlh, dl); mnl_attr_put_u8(nlh, DEVLINK_ATTR_PARAM_TYPE, ctx.nla_type); switch (ctx.nla_type) { case MNL_TYPE_U8: err = strtouint8_t(dl->opts.param_value, &val_u8); if (err) goto err_param_value_parse; if (val_u8 == ctx.value.vu8) return 0; mnl_attr_put_u8(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA, val_u8); break; case MNL_TYPE_U16: err = strtouint16_t(dl->opts.param_value, &val_u16); if (err) goto err_param_value_parse; if (val_u16 == ctx.value.vu16) return 0; mnl_attr_put_u16(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA, val_u16); break; case MNL_TYPE_U32: err = strtouint32_t(dl->opts.param_value, &val_u32); if (err) goto err_param_value_parse; if (val_u32 == ctx.value.vu32) return 0; mnl_attr_put_u32(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA, val_u32); break; case MNL_TYPE_FLAG: err = strtobool(dl->opts.param_value, &val_bool); if (err) goto err_param_value_parse; if (val_bool == ctx.value.vbool) return 0; if (val_bool) mnl_attr_put(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA, 0, NULL); break; case MNL_TYPE_STRING: mnl_attr_put_strz(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA, dl->opts.param_value); if (!strcmp(dl->opts.param_value, ctx.value.vstr)) return 0; break; default: printf("Value type not supported\n"); return -ENOTSUP; } return _mnlg_socket_sndrcv(dl->nlg, nlh, NULL, NULL); err_param_value_parse: pr_err("Value \"%s\" is not a number or not within range\n", dl->opts.param_value); return err; } static int cmd_dev_param_show(struct dl *dl) { uint16_t flags = NLM_F_REQUEST | NLM_F_ACK; struct nlmsghdr *nlh; int err; if (dl_argc(dl) == 0) flags |= NLM_F_DUMP; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_PARAM_GET, flags); if (dl_argc(dl) > 0) { err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE | DL_OPT_PARAM_NAME, 0); if (err) return err; } pr_out_section_start(dl, "param"); err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_dev_param_show_cb, dl); pr_out_section_end(dl); return err; } static int cmd_dev_param(struct dl *dl) { if (dl_argv_match(dl, "help")) { cmd_dev_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_dev_param_show(dl); } else if (dl_argv_match(dl, "set")) { dl_arg_inc(dl); return cmd_dev_param_set(dl); } pr_err("Command \"%s\" not found\n", dl_argv(dl)); return -ENOENT; } static int cmd_dev_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]) return MNL_CB_ERROR; pr_out_dev(dl, tb); return MNL_CB_OK; } static int cmd_dev_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_GET, flags); if (dl_argc(dl) > 0) { err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE, 0); if (err) return err; } pr_out_section_start(dl, "dev"); err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_dev_show_cb, dl); pr_out_section_end(dl); return err; } static void cmd_dev_reload_help(void) { pr_err("Usage: devlink dev reload [ DEV ]\n"); } static int cmd_dev_reload(struct dl *dl) { struct nlmsghdr *nlh; int err; if (dl_argv_match(dl, "help") || dl_no_arg(dl)) { cmd_dev_reload_help(); return 0; } nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_RELOAD, NLM_F_REQUEST | NLM_F_ACK); err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE, 0); if (err) return err; return _mnlg_socket_sndrcv(dl->nlg, nlh, NULL, NULL); } static int cmd_dev(struct dl *dl) { if (dl_argv_match(dl, "help")) { cmd_dev_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_dev_show(dl); } else if (dl_argv_match(dl, "eswitch")) { dl_arg_inc(dl); return cmd_dev_eswitch(dl); } else if (dl_argv_match(dl, "reload")) { dl_arg_inc(dl); return cmd_dev_reload(dl); } else if (dl_argv_match(dl, "param")) { dl_arg_inc(dl); return cmd_dev_param(dl); } pr_err("Command \"%s\" not found\n", dl_argv(dl)); return -ENOENT; } static void cmd_port_help(void) { pr_err("Usage: devlink port show [ DEV/PORT_INDEX ]\n"); pr_err(" devlink port set DEV/PORT_INDEX [ type { eth | ib | auto} ]\n"); pr_err(" devlink port split DEV/PORT_INDEX count COUNT\n"); pr_err(" devlink port unsplit DEV/PORT_INDEX\n"); } static const char *port_type_name(uint32_t type) { switch (type) { case DEVLINK_PORT_TYPE_NOTSET: return "notset"; case DEVLINK_PORT_TYPE_AUTO: return "auto"; case DEVLINK_PORT_TYPE_ETH: return "eth"; case DEVLINK_PORT_TYPE_IB: return "ib"; default: return ""; } } static const char *port_flavour_name(uint16_t flavour) { switch (flavour) { case DEVLINK_PORT_FLAVOUR_PHYSICAL: return "physical"; case DEVLINK_PORT_FLAVOUR_CPU: return "cpu"; case DEVLINK_PORT_FLAVOUR_DSA: return "dsa"; default: return ""; } } static void pr_out_port(struct dl *dl, struct nlattr **tb) { struct nlattr *pt_attr = tb[DEVLINK_ATTR_PORT_TYPE]; struct nlattr *dpt_attr = tb[DEVLINK_ATTR_PORT_DESIRED_TYPE]; pr_out_port_handle_start(dl, tb, false); if (pt_attr) { uint16_t port_type = mnl_attr_get_u16(pt_attr); pr_out_str(dl, "type", port_type_name(port_type)); if (dpt_attr) { uint16_t des_port_type = mnl_attr_get_u16(dpt_attr); if (port_type != des_port_type) pr_out_str(dl, "des_type", port_type_name(des_port_type)); } } if (tb[DEVLINK_ATTR_PORT_NETDEV_NAME]) pr_out_str(dl, "netdev", mnl_attr_get_str(tb[DEVLINK_ATTR_PORT_NETDEV_NAME])); if (tb[DEVLINK_ATTR_PORT_IBDEV_NAME]) pr_out_str(dl, "ibdev", mnl_attr_get_str(tb[DEVLINK_ATTR_PORT_IBDEV_NAME])); if (tb[DEVLINK_ATTR_PORT_FLAVOUR]) { uint16_t port_flavour = mnl_attr_get_u16(tb[DEVLINK_ATTR_PORT_FLAVOUR]); pr_out_str(dl, "flavour", port_flavour_name(port_flavour)); } if (tb[DEVLINK_ATTR_PORT_SPLIT_GROUP]) pr_out_uint(dl, "split_group", mnl_attr_get_u32(tb[DEVLINK_ATTR_PORT_SPLIT_GROUP])); pr_out_port_handle_end(dl); } static int cmd_port_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]) return MNL_CB_ERROR; pr_out_port(dl, tb); return MNL_CB_OK; } static int cmd_port_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_PORT_GET, flags); if (dl_argc(dl) > 0) { err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLEP, 0); if (err) return err; } pr_out_section_start(dl, "port"); err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_port_show_cb, dl); pr_out_section_end(dl); return err; } static int cmd_port_set(struct dl *dl) { struct nlmsghdr *nlh; int err; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_PORT_SET, NLM_F_REQUEST | NLM_F_ACK); err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLEP | DL_OPT_PORT_TYPE, 0); if (err) return err; return _mnlg_socket_sndrcv(dl->nlg, nlh, NULL, NULL); } static int cmd_port_split(struct dl *dl) { struct nlmsghdr *nlh; int err; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_PORT_SPLIT, NLM_F_REQUEST | NLM_F_ACK); err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLEP | DL_OPT_PORT_COUNT, 0); if (err) return err; return _mnlg_socket_sndrcv(dl->nlg, nlh, NULL, NULL); } static int cmd_port_unsplit(struct dl *dl) { struct nlmsghdr *nlh; int err; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_PORT_UNSPLIT, NLM_F_REQUEST | NLM_F_ACK); err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLEP, 0); if (err) return err; return _mnlg_socket_sndrcv(dl->nlg, nlh, NULL, NULL); } static int cmd_port(struct dl *dl) { if (dl_argv_match(dl, "help")) { cmd_port_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_port_show(dl); } else if (dl_argv_match(dl, "set")) { dl_arg_inc(dl); return cmd_port_set(dl); } else if (dl_argv_match(dl, "split")) { dl_arg_inc(dl); return cmd_port_split(dl); } else if (dl_argv_match(dl, "unsplit")) { dl_arg_inc(dl); return cmd_port_unsplit(dl); } pr_err("Command \"%s\" not found\n", dl_argv(dl)); return -ENOENT; } static void cmd_sb_help(void) { pr_err("Usage: devlink sb show [ DEV [ sb SB_INDEX ] ]\n"); pr_err(" devlink sb pool show [ DEV [ sb SB_INDEX ] pool POOL_INDEX ]\n"); pr_err(" devlink sb pool set DEV [ sb SB_INDEX ] pool POOL_INDEX\n"); pr_err(" size POOL_SIZE thtype { static | dynamic }\n"); pr_err(" devlink sb port pool show [ DEV/PORT_INDEX [ sb SB_INDEX ]\n"); pr_err(" pool POOL_INDEX ]\n"); pr_err(" devlink sb port pool set DEV/PORT_INDEX [ sb SB_INDEX ]\n"); pr_err(" pool POOL_INDEX th THRESHOLD\n"); pr_err(" devlink sb tc bind show [ DEV/PORT_INDEX [ sb SB_INDEX ] tc TC_INDEX\n"); pr_err(" type { ingress | egress } ]\n"); pr_err(" devlink sb tc bind set DEV/PORT_INDEX [ sb SB_INDEX ] tc TC_INDEX\n"); pr_err(" type { ingress | egress } pool POOL_INDEX\n"); pr_err(" th THRESHOLD\n"); pr_err(" devlink sb occupancy show { DEV | DEV/PORT_INDEX } [ sb SB_INDEX ]\n"); pr_err(" devlink sb occupancy snapshot DEV [ sb SB_INDEX ]\n"); pr_err(" devlink sb occupancy clearmax DEV [ sb SB_INDEX ]\n"); } static void pr_out_sb(struct dl *dl, struct nlattr **tb) { pr_out_handle_start_arr(dl, tb); pr_out_uint(dl, "sb", mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_INDEX])); pr_out_uint(dl, "size", mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_SIZE])); pr_out_uint(dl, "ing_pools", mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_INGRESS_POOL_COUNT])); pr_out_uint(dl, "eg_pools", mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_EGRESS_POOL_COUNT])); pr_out_uint(dl, "ing_tcs", mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_INGRESS_TC_COUNT])); pr_out_uint(dl, "eg_tcs", mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_EGRESS_TC_COUNT])); pr_out_handle_end(dl); } static int cmd_sb_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_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(dl, 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; } pr_out_section_start(dl, "sb"); err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_sb_show_cb, dl); pr_out_section_end(dl); return err; } 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 ""; } } 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 ""; } } static void pr_out_sb_pool(struct dl *dl, struct nlattr **tb) { pr_out_handle_start_arr(dl, tb); pr_out_uint(dl, "sb", mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_INDEX])); pr_out_uint(dl, "pool", mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_POOL_INDEX])); pr_out_str(dl, "type", pool_type_name(mnl_attr_get_u8(tb[DEVLINK_ATTR_SB_POOL_TYPE]))); pr_out_uint(dl, "size", mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_POOL_SIZE])); pr_out_str(dl, "thtype", threshold_type_name(mnl_attr_get_u8(tb[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]))); pr_out_handle_end(dl); } static int cmd_sb_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_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(dl, 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; } pr_out_section_start(dl, "pool"); err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_sb_pool_show_cb, dl); pr_out_section_end(dl); return err; } 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_start_arr(dl, tb, true); pr_out_uint(dl, "sb", mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_INDEX])); pr_out_uint(dl, "pool", mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_POOL_INDEX])); pr_out_uint(dl, "threshold", mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_THRESHOLD])); pr_out_port_handle_end(dl); } 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; } pr_out_section_start(dl, "port_pool"); err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_sb_port_pool_show_cb, dl); pr_out_section_end(dl); return 0; } 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_start_arr(dl, tb, true); pr_out_uint(dl, "sb", mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_INDEX])); pr_out_uint(dl, "tc", mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_TC_INDEX])); pr_out_str(dl, "type", pool_type_name(mnl_attr_get_u8(tb[DEVLINK_ATTR_SB_POOL_TYPE]))); pr_out_uint(dl, "pool", mnl_attr_get_u16(tb[DEVLINK_ATTR_SB_POOL_INDEX])); pr_out_uint(dl, "threshold", mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_THRESHOLD])); pr_out_port_handle_end(dl); } 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; } pr_out_section_start(dl, "tc_bind"); err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_sb_tc_bind_show_cb, dl); pr_out_section_end(dl); return err; } 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_json_occ_show_item_list(struct dl *dl, const char *label, struct list_head *list, bool bound_pool) { struct occ_item *occ_item; char buf[32]; jsonw_name(dl->jw, label); jsonw_start_object(dl->jw); list_for_each_entry(occ_item, list, list) { sprintf(buf, "%u", occ_item->index); jsonw_name(dl->jw, buf); jsonw_start_object(dl->jw); if (bound_pool) jsonw_uint_field(dl->jw, "bound_pool", occ_item->bound_pool_index); jsonw_uint_field(dl->jw, "current", occ_item->cur); jsonw_uint_field(dl->jw, "max", occ_item->max); jsonw_end_object(dl->jw); } jsonw_end_object(dl->jw); } static void pr_out_occ_show_port(struct dl *dl, struct occ_port *occ_port) { if (dl->json_output) { pr_out_json_occ_show_item_list(dl, "pool", &occ_port->pool_list, false); pr_out_json_occ_show_item_list(dl, "itc", &occ_port->ing_tc_list, true); pr_out_json_occ_show_item_list(dl, "etc", &occ_port->eg_tc_list, true); } else { pr_out("\n"); 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_start(dl, opts->bus_name, opts->dev_name, occ_port->port_index, true, false); pr_out_occ_show_port(dl, occ_port); pr_out_port_handle_end(dl); } } 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_section_start(dl, "occupancy"); pr_out_occ_show(occ_show); pr_out_section_end(dl); 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 "new"; case DEVLINK_CMD_PORT_DEL: return "del"; case DEVLINK_CMD_PARAM_GET: return "get"; case DEVLINK_CMD_PARAM_SET: return "set"; case DEVLINK_CMD_PARAM_NEW: return "new"; case DEVLINK_CMD_PARAM_DEL: return "del"; case DEVLINK_CMD_REGION_GET: return "get"; case DEVLINK_CMD_REGION_SET: return "set"; case DEVLINK_CMD_REGION_NEW: return "new"; case DEVLINK_CMD_REGION_DEL: return "del"; default: return ""; } } static const char *cmd_obj(uint8_t cmd) { switch (cmd) { case DEVLINK_CMD_UNSPEC: return "unspec"; case DEVLINK_CMD_GET: case DEVLINK_CMD_SET: case DEVLINK_CMD_NEW: case DEVLINK_CMD_DEL: return "dev"; case DEVLINK_CMD_PORT_GET: case DEVLINK_CMD_PORT_SET: case DEVLINK_CMD_PORT_NEW: case DEVLINK_CMD_PORT_DEL: return "port"; case DEVLINK_CMD_PARAM_GET: case DEVLINK_CMD_PARAM_SET: case DEVLINK_CMD_PARAM_NEW: case DEVLINK_CMD_PARAM_DEL: return "param"; case DEVLINK_CMD_REGION_GET: case DEVLINK_CMD_REGION_SET: case DEVLINK_CMD_REGION_NEW: case DEVLINK_CMD_REGION_DEL: return "region"; default: return ""; } } static void pr_out_mon_header(uint8_t cmd) { pr_out("[%s,%s] ", cmd_obj(cmd), cmd_name(cmd)); } static bool cmd_filter_check(struct dl *dl, uint8_t cmd) { const char *obj = cmd_obj(cmd); unsigned int index = 0; const char *cur_obj; if (dl_no_arg(dl)) return true; while ((cur_obj = dl_argv_index(dl, index++))) { if (strcmp(cur_obj, obj) == 0 || strcmp(cur_obj, "all") == 0) return true; } return false; } static void pr_out_region(struct dl *dl, struct nlattr **tb); static int cmd_mon_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); uint8_t cmd = genl->cmd; if (!cmd_filter_check(dl, cmd)) return MNL_CB_OK; switch (cmd) { case DEVLINK_CMD_GET: /* fall through */ case DEVLINK_CMD_SET: /* fall through */ case DEVLINK_CMD_NEW: /* fall through */ case DEVLINK_CMD_DEL: mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb); if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME]) return MNL_CB_ERROR; pr_out_mon_header(genl->cmd); pr_out_dev(dl, tb); break; case DEVLINK_CMD_PORT_GET: /* fall through */ case DEVLINK_CMD_PORT_SET: /* fall through */ case DEVLINK_CMD_PORT_NEW: /* fall through */ case DEVLINK_CMD_PORT_DEL: 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]) return MNL_CB_ERROR; pr_out_mon_header(genl->cmd); pr_out_port(dl, tb); break; case DEVLINK_CMD_PARAM_GET: /* fall through */ case DEVLINK_CMD_PARAM_SET: /* fall through */ case DEVLINK_CMD_PARAM_NEW: /* fall through */ case DEVLINK_CMD_PARAM_DEL: mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb); if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME] || !tb[DEVLINK_ATTR_PARAM]) return MNL_CB_ERROR; pr_out_mon_header(genl->cmd); pr_out_param(dl, tb, false); break; case DEVLINK_CMD_REGION_GET: /* fall through */ case DEVLINK_CMD_REGION_SET: /* fall through */ case DEVLINK_CMD_REGION_NEW: /* fall through */ case DEVLINK_CMD_REGION_DEL: mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb); if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME] || !tb[DEVLINK_ATTR_REGION_NAME]) return MNL_CB_ERROR; pr_out_mon_header(genl->cmd); pr_out_region(dl, tb); break; } return MNL_CB_OK; } static int cmd_mon_show(struct dl *dl) { int err; unsigned int index = 0; const char *cur_obj; while ((cur_obj = dl_argv_index(dl, index++))) { if (strcmp(cur_obj, "all") != 0 && strcmp(cur_obj, "dev") != 0 && strcmp(cur_obj, "port") != 0) { pr_err("Unknown object \"%s\"\n", cur_obj); return -EINVAL; } } err = _mnlg_socket_group_add(dl->nlg, DEVLINK_GENL_MCGRP_CONFIG_NAME); if (err) return err; err = _mnlg_socket_recv_run(dl->nlg, cmd_mon_show_cb, dl); if (err) return err; return 0; } static void cmd_mon_help(void) { pr_err("Usage: devlink monitor [ all | OBJECT-LIST ]\n" "where OBJECT-LIST := { dev | port }\n"); } static int cmd_mon(struct dl *dl) { if (dl_argv_match(dl, "help")) { cmd_mon_help(); return 0; } else if (dl_no_arg(dl)) { dl_arg_inc(dl); return cmd_mon_show(dl); } pr_err("Command \"%s\" not found\n", dl_argv(dl)); return -ENOENT; } struct dpipe_field { char *name; unsigned int id; unsigned int bitwidth; enum devlink_dpipe_field_mapping_type mapping_type; }; struct dpipe_header { struct list_head list; char *name; unsigned int id; struct dpipe_field *fields; unsigned int fields_count; }; struct dpipe_table { struct list_head list; char *name; unsigned int resource_id; bool resource_valid; }; struct dpipe_tables { struct list_head table_list; }; struct resource { char *name; uint64_t size; uint64_t size_new; uint64_t size_min; uint64_t size_max; uint64_t size_gran; enum devlink_resource_unit unit; bool size_valid; uint64_t size_occ; bool occ_valid; uint64_t id; struct list_head list; struct list_head resource_list; struct resource *parent; }; struct resources { struct list_head resource_list; }; struct resource_ctx { struct dl *dl; int err; struct resources *resources; struct dpipe_tables *tables; bool print_resources; bool pending_change; }; static struct resource *resource_alloc(void) { struct resource *resource; resource = calloc(1, sizeof(struct resource)); if (!resource) return NULL; INIT_LIST_HEAD(&resource->resource_list); return resource; } static void resource_free(struct resource *resource) { struct resource *child_resource, *tmp; list_for_each_entry_safe(child_resource, tmp, &resource->resource_list, list) { free(child_resource->name); resource_free(child_resource); } free(resource); } static struct resources *resources_alloc(void) { struct resources *resources; resources = calloc(1, sizeof(struct resources)); if (!resources) return NULL; INIT_LIST_HEAD(&resources->resource_list); return resources; } static void resources_free(struct resources *resources) { struct resource *resource, *tmp; list_for_each_entry_safe(resource, tmp, &resources->resource_list, list) resource_free(resource); } static int resource_ctx_init(struct resource_ctx *ctx, struct dl *dl) { ctx->resources = resources_alloc(); if (!ctx->resources) return -ENOMEM; ctx->dl = dl; return 0; } static void resource_ctx_fini(struct resource_ctx *ctx) { resources_free(ctx->resources); } struct dpipe_ctx { struct dl *dl; int err; struct list_head global_headers; struct list_head local_headers; struct dpipe_tables *tables; struct resources *resources; bool print_headers; bool print_tables; }; static struct dpipe_header *dpipe_header_alloc(unsigned int fields_count) { struct dpipe_header *header; header = calloc(1, sizeof(struct dpipe_header)); if (!header) return NULL; header->fields = calloc(fields_count, sizeof(struct dpipe_field)); if (!header->fields) goto err_fields_alloc; header->fields_count = fields_count; return header; err_fields_alloc: free(header); return NULL; } static void dpipe_header_free(struct dpipe_header *header) { free(header->fields); free(header); } static void dpipe_header_clear(struct dpipe_header *header) { struct dpipe_field *field; int i; for (i = 0; i < header->fields_count; i++) { field = &header->fields[i]; free(field->name); } free(header->name); } static void dpipe_header_add(struct dpipe_ctx *ctx, struct dpipe_header *header, bool global) { if (global) list_add(&header->list, &ctx->global_headers); else list_add(&header->list, &ctx->local_headers); } static void dpipe_header_del(struct dpipe_header *header) { list_del(&header->list); } static struct dpipe_table *dpipe_table_alloc(void) { return calloc(1, sizeof(struct dpipe_table)); } static void dpipe_table_free(struct dpipe_table *table) { free(table); } static struct dpipe_tables *dpipe_tables_alloc(void) { struct dpipe_tables *tables; tables = calloc(1, sizeof(struct dpipe_tables)); if (!tables) return NULL; INIT_LIST_HEAD(&tables->table_list); return tables; } static void dpipe_tables_free(struct dpipe_tables *tables) { struct dpipe_table *table, *tmp; list_for_each_entry_safe(table, tmp, &tables->table_list, list) dpipe_table_free(table); free(tables); } static int dpipe_ctx_init(struct dpipe_ctx *ctx, struct dl *dl) { ctx->tables = dpipe_tables_alloc(); if (!ctx->tables) return -ENOMEM; ctx->dl = dl; INIT_LIST_HEAD(&ctx->global_headers); INIT_LIST_HEAD(&ctx->local_headers); return 0; } static void dpipe_ctx_fini(struct dpipe_ctx *ctx) { struct dpipe_header *header, *tmp; list_for_each_entry_safe(header, tmp, &ctx->global_headers, list) { dpipe_header_del(header); dpipe_header_clear(header); dpipe_header_free(header); } list_for_each_entry_safe(header, tmp, &ctx->local_headers, list) { dpipe_header_del(header); dpipe_header_clear(header); dpipe_header_free(header); } dpipe_tables_free(ctx->tables); } static const char *dpipe_header_id2s(struct dpipe_ctx *ctx, uint32_t header_id, bool global) { struct list_head *header_list; struct dpipe_header *header; if (global) header_list = &ctx->global_headers; else header_list = &ctx->local_headers; list_for_each_entry(header, header_list, list) { if (header->id != header_id) continue; return header->name; } return NULL; } static const char *dpipe_field_id2s(struct dpipe_ctx *ctx, uint32_t header_id, uint32_t field_id, bool global) { struct list_head *header_list; struct dpipe_header *header; if (global) header_list = &ctx->global_headers; else header_list = &ctx->local_headers; list_for_each_entry(header, header_list, list) { if (header->id != header_id) continue; return header->fields[field_id].name; } return NULL; } static const char * dpipe_field_mapping_e2s(enum devlink_dpipe_field_mapping_type mapping_type) { switch (mapping_type) { case DEVLINK_DPIPE_FIELD_MAPPING_TYPE_NONE: return NULL; case DEVLINK_DPIPE_FIELD_MAPPING_TYPE_IFINDEX: return "ifindex"; default: return ""; } } static const char * dpipe_mapping_get(struct dpipe_ctx *ctx, uint32_t header_id, uint32_t field_id, bool global) { enum devlink_dpipe_field_mapping_type mapping_type; struct list_head *header_list; struct dpipe_header *header; if (global) header_list = &ctx->global_headers; else header_list = &ctx->local_headers; list_for_each_entry(header, header_list, list) { if (header->id != header_id) continue; mapping_type = header->fields[field_id].mapping_type; return dpipe_field_mapping_e2s(mapping_type); } return NULL; } static void pr_out_dpipe_fields(struct dpipe_ctx *ctx, struct dpipe_field *fields, unsigned int field_count) { struct dpipe_field *field; int i; for (i = 0; i < field_count; i++) { field = &fields[i]; pr_out_entry_start(ctx->dl); pr_out_str(ctx->dl, "name", field->name); if (ctx->dl->verbose) pr_out_uint(ctx->dl, "id", field->id); pr_out_uint(ctx->dl, "bitwidth", field->bitwidth); if (field->mapping_type) pr_out_str(ctx->dl, "mapping_type", dpipe_field_mapping_e2s(field->mapping_type)); pr_out_entry_end(ctx->dl); } } static void pr_out_dpipe_header(struct dpipe_ctx *ctx, struct nlattr **tb, struct dpipe_header *header, bool global) { pr_out_handle_start_arr(ctx->dl, tb); pr_out_str(ctx->dl, "name", header->name); if (ctx->dl->verbose) { pr_out_uint(ctx->dl, "id", header->id); pr_out_str(ctx->dl, "global", global ? "true" : "false"); } pr_out_array_start(ctx->dl, "field"); pr_out_dpipe_fields(ctx, header->fields, header->fields_count); pr_out_array_end(ctx->dl); pr_out_handle_end(ctx->dl); } static void pr_out_dpipe_headers(struct dpipe_ctx *ctx, struct nlattr **tb) { struct dpipe_header *header; list_for_each_entry(header, &ctx->local_headers, list) pr_out_dpipe_header(ctx, tb, header, false); list_for_each_entry(header, &ctx->global_headers, list) pr_out_dpipe_header(ctx, tb, header, true); } static int dpipe_header_field_get(struct nlattr *nl, struct dpipe_field *field) { struct nlattr *nla_field[DEVLINK_ATTR_MAX + 1] = {}; const char *name; int err; err = mnl_attr_parse_nested(nl, attr_cb, nla_field); if (err != MNL_CB_OK) return -EINVAL; if (!nla_field[DEVLINK_ATTR_DPIPE_FIELD_ID] || !nla_field[DEVLINK_ATTR_DPIPE_FIELD_NAME] || !nla_field[DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH] || !nla_field[DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE]) return -EINVAL; name = mnl_attr_get_str(nla_field[DEVLINK_ATTR_DPIPE_FIELD_NAME]); field->id = mnl_attr_get_u32(nla_field[DEVLINK_ATTR_DPIPE_FIELD_ID]); field->bitwidth = mnl_attr_get_u32(nla_field[DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH]); field->name = strdup(name); if (!field->name) return -ENOMEM; field->mapping_type = mnl_attr_get_u32(nla_field[DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE]); return 0; } static int dpipe_header_fields_get(struct nlattr *nla_fields, struct dpipe_field *fields) { struct nlattr *nla_field; int count = 0; int err; mnl_attr_for_each_nested(nla_field, nla_fields) { err = dpipe_header_field_get(nla_field, &fields[count]); if (err) return err; count++; } return 0; } static unsigned int dpipe_header_field_count_get(struct nlattr *nla_fields) { struct nlattr *nla_field; unsigned int count = 0; mnl_attr_for_each_nested(nla_field, nla_fields) count++; return count; } static int dpipe_header_get(struct dpipe_ctx *ctx, struct nlattr *nl) { struct nlattr *nla_header[DEVLINK_ATTR_MAX + 1] = {}; struct dpipe_header *header; unsigned int fields_count; const char *header_name; bool global; int err; err = mnl_attr_parse_nested(nl, attr_cb, nla_header); if (err != MNL_CB_OK) return -EINVAL; if (!nla_header[DEVLINK_ATTR_DPIPE_HEADER_NAME] || !nla_header[DEVLINK_ATTR_DPIPE_HEADER_ID] || !nla_header[DEVLINK_ATTR_DPIPE_HEADER_FIELDS]) return -EINVAL; fields_count = dpipe_header_field_count_get(nla_header[DEVLINK_ATTR_DPIPE_HEADER_FIELDS]); header = dpipe_header_alloc(fields_count); if (!header) return -ENOMEM; header_name = mnl_attr_get_str(nla_header[DEVLINK_ATTR_DPIPE_HEADER_NAME]); header->name = strdup(header_name); header->id = mnl_attr_get_u32(nla_header[DEVLINK_ATTR_DPIPE_HEADER_ID]); header->fields_count = fields_count; global = !!mnl_attr_get_u8(nla_header[DEVLINK_ATTR_DPIPE_HEADER_GLOBAL]); err = dpipe_header_fields_get(nla_header[DEVLINK_ATTR_DPIPE_HEADER_FIELDS], header->fields); if (err) goto err_field_get; dpipe_header_add(ctx, header, global); return 0; err_field_get: dpipe_header_free(header); return err; } static int dpipe_headers_get(struct dpipe_ctx *ctx, struct nlattr **tb) { struct nlattr *nla_headers = tb[DEVLINK_ATTR_DPIPE_HEADERS]; struct nlattr *nla_header; int err; mnl_attr_for_each_nested(nla_header, nla_headers) { err = dpipe_header_get(ctx, nla_header); if (err) return err; } return 0; } static int cmd_dpipe_header_cb(const struct nlmsghdr *nlh, void *data) { struct dpipe_ctx *ctx = data; struct nlattr *tb[DEVLINK_ATTR_MAX + 1] = {}; struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); int err; mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb); if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME] || !tb[DEVLINK_ATTR_DPIPE_HEADERS]) return MNL_CB_ERROR; err = dpipe_headers_get(ctx, tb); if (err) { ctx->err = err; return MNL_CB_ERROR; } if (ctx->print_headers) pr_out_dpipe_headers(ctx, tb); return MNL_CB_OK; } static int cmd_dpipe_headers_show(struct dl *dl) { struct nlmsghdr *nlh; struct dpipe_ctx ctx = {}; uint16_t flags = NLM_F_REQUEST | NLM_F_ACK; int err; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_DPIPE_HEADERS_GET, flags); err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE, 0); if (err) return err; err = dpipe_ctx_init(&ctx, dl); if (err) return err; ctx.print_headers = true; pr_out_section_start(dl, "header"); err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_dpipe_header_cb, &ctx); if (err) pr_err("error get headers %s\n", strerror(ctx.err)); pr_out_section_end(dl); dpipe_ctx_fini(&ctx); return err; } static void cmd_dpipe_header_help(void) { pr_err("Usage: devlink dpipe headers show DEV\n"); } static int cmd_dpipe_header(struct dl *dl) { if (dl_argv_match(dl, "help") || dl_no_arg(dl)) { cmd_dpipe_header_help(); return 0; } else if (dl_argv_match(dl, "show")) { dl_arg_inc(dl); return cmd_dpipe_headers_show(dl); } pr_err("Command \"%s\" not found\n", dl_argv(dl)); return -ENOENT; } static const char *dpipe_action_type_e2s(enum devlink_dpipe_action_type action_type) { switch (action_type) { case DEVLINK_DPIPE_ACTION_TYPE_FIELD_MODIFY: return "field_modify"; default: return ""; } } struct dpipe_op_info { uint32_t header_id; uint32_t field_id; bool header_global; }; struct dpipe_action { struct dpipe_op_info info; uint32_t type; }; static void pr_out_dpipe_action(struct dpipe_action *action, struct dpipe_ctx *ctx) { struct dpipe_op_info *op_info = &action->info; const char *mapping; pr_out_str(ctx->dl, "type", dpipe_action_type_e2s(action->type)); pr_out_str(ctx->dl, "header", dpipe_header_id2s(ctx, op_info->header_id, op_info->header_global)); pr_out_str(ctx->dl, "field", dpipe_field_id2s(ctx, op_info->header_id, op_info->field_id, op_info->header_global)); mapping = dpipe_mapping_get(ctx, op_info->header_id, op_info->field_id, op_info->header_global); if (mapping) pr_out_str(ctx->dl, "mapping", mapping); } static int dpipe_action_parse(struct dpipe_action *action, struct nlattr *nl) { struct nlattr *nla_action[DEVLINK_ATTR_MAX + 1] = {}; int err; err = mnl_attr_parse_nested(nl, attr_cb, nla_action); if (err != MNL_CB_OK) return -EINVAL; if (!nla_action[DEVLINK_ATTR_DPIPE_ACTION_TYPE] || !nla_action[DEVLINK_ATTR_DPIPE_HEADER_INDEX] || !nla_action[DEVLINK_ATTR_DPIPE_HEADER_ID] || !nla_action[DEVLINK_ATTR_DPIPE_FIELD_ID]) { return -EINVAL; } action->type = mnl_attr_get_u32(nla_action[DEVLINK_ATTR_DPIPE_ACTION_TYPE]); action->info.header_id = mnl_attr_get_u32(nla_action[DEVLINK_ATTR_DPIPE_HEADER_ID]); action->info.field_id = mnl_attr_get_u32(nla_action[DEVLINK_ATTR_DPIPE_FIELD_ID]); action->info.header_global = !!mnl_attr_get_u8(nla_action[DEVLINK_ATTR_DPIPE_HEADER_GLOBAL]); return 0; } static int dpipe_table_actions_show(struct dpipe_ctx *ctx, struct nlattr *nla_actions) { struct nlattr *nla_action; struct dpipe_action action; mnl_attr_for_each_nested(nla_action, nla_actions) { pr_out_entry_start(ctx->dl); if (dpipe_action_parse(&action, nla_action)) goto err_action_parse; pr_out_dpipe_action(&action, ctx); pr_out_entry_end(ctx->dl); } return 0; err_action_parse: pr_out_entry_end(ctx->dl); return -EINVAL; } static const char * dpipe_match_type_e2s(enum devlink_dpipe_match_type match_type) { switch (match_type) { case DEVLINK_DPIPE_MATCH_TYPE_FIELD_EXACT: return "field_exact"; default: return ""; } } struct dpipe_match { struct dpipe_op_info info; uint32_t type; }; static void pr_out_dpipe_match(struct dpipe_match *match, struct dpipe_ctx *ctx) { struct dpipe_op_info *op_info = &match->info; const char *mapping; pr_out_str(ctx->dl, "type", dpipe_match_type_e2s(match->type)); pr_out_str(ctx->dl, "header", dpipe_header_id2s(ctx, op_info->header_id, op_info->header_global)); pr_out_str(ctx->dl, "field", dpipe_field_id2s(ctx, op_info->header_id, op_info->field_id, op_info->header_global)); mapping = dpipe_mapping_get(ctx, op_info->header_id, op_info->field_id, op_info->header_global); if (mapping) pr_out_str(ctx->dl, "mapping", mapping); } static int dpipe_match_parse(struct dpipe_match *match, struct nlattr *nl) { struct nlattr *nla_match[DEVLINK_ATTR_MAX + 1] = {}; int err; err = mnl_attr_parse_nested(nl, attr_cb, nla_match); if (err != MNL_CB_OK) return -EINVAL; if (!nla_match[DEVLINK_ATTR_DPIPE_MATCH_TYPE] || !nla_match[DEVLINK_ATTR_DPIPE_HEADER_INDEX] || !nla_match[DEVLINK_ATTR_DPIPE_HEADER_ID] || !nla_match[DEVLINK_ATTR_DPIPE_FIELD_ID]) { return -EINVAL; } match->type = mnl_attr_get_u32(nla_match[DEVLINK_ATTR_DPIPE_MATCH_TYPE]); match->info.header_id = mnl_attr_get_u32(nla_match[DEVLINK_ATTR_DPIPE_HEADER_ID]); match->info.field_id = mnl_attr_get_u32(nla_match[DEVLINK_ATTR_DPIPE_FIELD_ID]); match->info.header_global = !!mnl_attr_get_u8(nla_match[DEVLINK_ATTR_DPIPE_HEADER_GLOBAL]); return 0; } static int dpipe_table_matches_show(struct dpipe_ctx *ctx, struct nlattr *nla_matches) { struct nlattr *nla_match; struct dpipe_match match; mnl_attr_for_each_nested(nla_match, nla_matches) { pr_out_entry_start(ctx->dl); if (dpipe_match_parse(&match, nla_match)) goto err_match_parse; pr_out_dpipe_match(&match, ctx); pr_out_entry_end(ctx->dl); } return 0; err_match_parse: pr_out_entry_end(ctx->dl); return -EINVAL; } static struct resource * resource_find(struct resources *resources, struct resource *resource, uint64_t resource_id) { struct list_head *list_head; if (!resource) list_head = &resources->resource_list; else list_head = &resource->resource_list; list_for_each_entry(resource, list_head, list) { struct resource *child_resource; if (resource->id == resource_id) return resource; child_resource = resource_find(resources, resource, resource_id); if (child_resource) return child_resource; } return NULL; } static void resource_path_print(struct dl *dl, struct resources *resources, uint64_t resource_id) { struct resource *resource, *parent_resource; const char del[] = "/"; int path_len = 0; char *path; resource = resource_find(resources, NULL, resource_id); if (!resource) return; for (parent_resource = resource; parent_resource; parent_resource = parent_resource->parent) path_len += strlen(parent_resource->name) + 1; path_len++; path = calloc(1, path_len); if (!path) return; path += path_len - 1; for (parent_resource = resource; parent_resource; parent_resource = parent_resource->parent) { path -= strlen(parent_resource->name); memcpy(path, parent_resource->name, strlen(parent_resource->name)); path -= strlen(del); memcpy(path, del, strlen(del)); } pr_out_str(dl, "resource_path", path); free(path); } static int dpipe_table_show(struct dpipe_ctx *ctx, struct nlattr *nl) { struct nlattr *nla_table[DEVLINK_ATTR_MAX + 1] = {}; struct dpipe_table *table; uint32_t resource_units; bool counters_enabled; bool resource_valid; uint32_t size; int err; err = mnl_attr_parse_nested(nl, attr_cb, nla_table); if (err != MNL_CB_OK) return -EINVAL; if (!nla_table[DEVLINK_ATTR_DPIPE_TABLE_NAME] || !nla_table[DEVLINK_ATTR_DPIPE_TABLE_SIZE] || !nla_table[DEVLINK_ATTR_DPIPE_TABLE_ACTIONS] || !nla_table[DEVLINK_ATTR_DPIPE_TABLE_MATCHES] || !nla_table[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]) { return -EINVAL; } table = dpipe_table_alloc(); if (!table) return -ENOMEM; table->name = strdup(mnl_attr_get_str(nla_table[DEVLINK_ATTR_DPIPE_TABLE_NAME])); size = mnl_attr_get_u32(nla_table[DEVLINK_ATTR_DPIPE_TABLE_SIZE]); counters_enabled = !!mnl_attr_get_u8(nla_table[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]); resource_valid = !!nla_table[DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID]; if (resource_valid) { table->resource_id = mnl_attr_get_u64(nla_table[DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID]); table->resource_valid = true; } list_add_tail(&table->list, &ctx->tables->table_list); if (!ctx->print_tables) return 0; pr_out_str(ctx->dl, "name", table->name); pr_out_uint(ctx->dl, "size", size); pr_out_str(ctx->dl, "counters_enabled", counters_enabled ? "true" : "false"); if (resource_valid) { resource_units = mnl_attr_get_u32(nla_table[DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS]); resource_path_print(ctx->dl, ctx->resources, table->resource_id); pr_out_uint(ctx->dl, "resource_units", resource_units); } pr_out_array_start(ctx->dl, "match"); if (dpipe_table_matches_show(ctx, nla_table[DEVLINK_ATTR_DPIPE_TABLE_MATCHES])) goto err_matches_show; pr_out_array_end(ctx->dl); pr_out_array_start(ctx->dl, "action"); if (dpipe_table_actions_show(ctx, nla_table[DEVLINK_ATTR_DPIPE_TABLE_ACTIONS])) goto err_actions_show; pr_out_array_end(ctx->dl); return 0; err_actions_show: err_matches_show: pr_out_array_end(ctx->dl); return -EINVAL; } static int dpipe_tables_show(struct dpipe_ctx *ctx, struct nlattr **tb) { struct nlattr *nla_tables = tb[DEVLINK_ATTR_DPIPE_TABLES]; struct nlattr *nla_table; mnl_attr_for_each_nested(nla_table, nla_tables) { if (ctx->print_tables) pr_out_handle_start_arr(ctx->dl, tb); if (dpipe_table_show(ctx, nla_table)) goto err_table_show; if (ctx->print_tables) pr_out_handle_end(ctx->dl); } return 0; err_table_show: if (ctx->print_tables) pr_out_handle_end(ctx->dl); return -EINVAL; } static int cmd_dpipe_table_show_cb(const struct nlmsghdr *nlh, void *data) { struct dpipe_ctx *ctx = 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_DPIPE_TABLES]) return MNL_CB_ERROR; if (dpipe_tables_show(ctx, tb)) return MNL_CB_ERROR; return MNL_CB_OK; } static int cmd_resource_dump_cb(const struct nlmsghdr *nlh, void *data); static int cmd_dpipe_table_show(struct dl *dl) { struct nlmsghdr *nlh; struct dpipe_ctx dpipe_ctx = {}; struct resource_ctx resource_ctx = {}; uint16_t flags = NLM_F_REQUEST; int err; err = dl_argv_parse(dl, DL_OPT_HANDLE, DL_OPT_DPIPE_TABLE_NAME); if (err) return err; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_DPIPE_HEADERS_GET, flags); err = dpipe_ctx_init(&dpipe_ctx, dl); if (err) return err; dpipe_ctx.print_tables = true; dl_opts_put(nlh, dl); err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_dpipe_header_cb, &dpipe_ctx); if (err) { pr_err("error get headers %s\n", strerror(dpipe_ctx.err)); goto err_headers_get; } err = resource_ctx_init(&resource_ctx, dl); if (err) goto err_resource_ctx_init; resource_ctx.print_resources = false; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_RESOURCE_DUMP, flags); dl_opts_put(nlh, dl); err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_resource_dump_cb, &resource_ctx); if (err) { pr_err("error get resources %s\n", strerror(resource_ctx.err)); goto err_resource_dump; } dpipe_ctx.resources = resource_ctx.resources; flags = NLM_F_REQUEST | NLM_F_ACK; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_DPIPE_TABLE_GET, flags); dl_opts_put(nlh, dl); pr_out_section_start(dl, "table"); _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_dpipe_table_show_cb, &dpipe_ctx); pr_out_section_end(dl); resource_ctx_fini(&resource_ctx); dpipe_ctx_fini(&dpipe_ctx); return 0; err_resource_dump: resource_ctx_fini(&resource_ctx); err_resource_ctx_init: err_headers_get: dpipe_ctx_fini(&dpipe_ctx); return err; } static int cmd_dpipe_table_set(struct dl *dl) { struct nlmsghdr *nlh; int err; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET, NLM_F_REQUEST | NLM_F_ACK); err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE | DL_OPT_DPIPE_TABLE_NAME | DL_OPT_DPIPE_TABLE_COUNTERS, 0); if (err) return err; return _mnlg_socket_sndrcv(dl->nlg, nlh, NULL, NULL); } enum dpipe_value_type { DPIPE_VALUE_TYPE_VALUE, DPIPE_VALUE_TYPE_MASK, }; static const char * dpipe_value_type_e2s(enum dpipe_value_type type) { switch (type) { case DPIPE_VALUE_TYPE_VALUE: return "value"; case DPIPE_VALUE_TYPE_MASK: return "value_mask"; default: return ""; } } struct dpipe_field_printer { unsigned int field_id; void (*printer)(struct dpipe_ctx *, enum dpipe_value_type, void *); }; struct dpipe_header_printer { struct dpipe_field_printer *printers; unsigned int printers_count; unsigned int header_id; }; static void dpipe_field_printer_ipv4_addr(struct dpipe_ctx *ctx, enum dpipe_value_type type, void *value) { struct in_addr ip_addr; ip_addr.s_addr = htonl(*(uint32_t *)value); pr_out_str(ctx->dl, dpipe_value_type_e2s(type), inet_ntoa(ip_addr)); } static void dpipe_field_printer_ethernet_addr(struct dpipe_ctx *ctx, enum dpipe_value_type type, void *value) { pr_out_str(ctx->dl, dpipe_value_type_e2s(type), ether_ntoa((struct ether_addr *)value)); } static void dpipe_field_printer_ipv6_addr(struct dpipe_ctx *ctx, enum dpipe_value_type type, void *value) { char str[INET6_ADDRSTRLEN]; inet_ntop(AF_INET6, value, str, INET6_ADDRSTRLEN); pr_out_str(ctx->dl, dpipe_value_type_e2s(type), str); } static struct dpipe_field_printer dpipe_field_printers_ipv4[] = { { .printer = dpipe_field_printer_ipv4_addr, .field_id = DEVLINK_DPIPE_FIELD_IPV4_DST_IP, } }; static struct dpipe_header_printer dpipe_header_printer_ipv4 = { .printers = dpipe_field_printers_ipv4, .printers_count = ARRAY_SIZE(dpipe_field_printers_ipv4), .header_id = DEVLINK_DPIPE_HEADER_IPV4, }; static struct dpipe_field_printer dpipe_field_printers_ethernet[] = { { .printer = dpipe_field_printer_ethernet_addr, .field_id = DEVLINK_DPIPE_FIELD_ETHERNET_DST_MAC, }, }; static struct dpipe_header_printer dpipe_header_printer_ethernet = { .printers = dpipe_field_printers_ethernet, .printers_count = ARRAY_SIZE(dpipe_field_printers_ethernet), .header_id = DEVLINK_DPIPE_HEADER_ETHERNET, }; static struct dpipe_field_printer dpipe_field_printers_ipv6[] = { { .printer = dpipe_field_printer_ipv6_addr, .field_id = DEVLINK_DPIPE_FIELD_IPV6_DST_IP, } }; static struct dpipe_header_printer dpipe_header_printer_ipv6 = { .printers = dpipe_field_printers_ipv6, .printers_count = ARRAY_SIZE(dpipe_field_printers_ipv6), .header_id = DEVLINK_DPIPE_HEADER_IPV6, }; static struct dpipe_header_printer *dpipe_header_printers[] = { &dpipe_header_printer_ipv4, &dpipe_header_printer_ethernet, &dpipe_header_printer_ipv6, }; static int dpipe_print_prot_header(struct dpipe_ctx *ctx, struct dpipe_op_info *info, enum dpipe_value_type type, void *value) { unsigned int header_printers_count = ARRAY_SIZE(dpipe_header_printers); struct dpipe_header_printer *header_printer; struct dpipe_field_printer *field_printer; unsigned int field_printers_count; int j; int i; for (i = 0; i < header_printers_count; i++) { header_printer = dpipe_header_printers[i]; if (header_printer->header_id != info->header_id) continue; field_printers_count = header_printer->printers_count; for (j = 0; j < field_printers_count; j++) { field_printer = &header_printer->printers[j]; if (field_printer->field_id != info->field_id) continue; field_printer->printer(ctx, type, value); return 0; } } return -EINVAL; } static void __pr_out_entry_value(struct dpipe_ctx *ctx, void *value, unsigned int value_len, struct dpipe_op_info *info, enum dpipe_value_type type) { if (info->header_global && !dpipe_print_prot_header(ctx, info, type, value)) return; if (value_len == sizeof(uint32_t)) { uint32_t *value_32 = value; pr_out_uint(ctx->dl, dpipe_value_type_e2s(type), *value_32); } } static void pr_out_dpipe_entry_value(struct dpipe_ctx *ctx, struct nlattr **nla_match_value, struct dpipe_op_info *info) { void *value, *value_mask; uint32_t value_mapping; uint16_t value_len; bool mask, mapping; mask = !!nla_match_value[DEVLINK_ATTR_DPIPE_VALUE_MASK]; mapping = !!nla_match_value[DEVLINK_ATTR_DPIPE_VALUE_MAPPING]; value_len = mnl_attr_get_payload_len(nla_match_value[DEVLINK_ATTR_DPIPE_VALUE]); value = mnl_attr_get_payload(nla_match_value[DEVLINK_ATTR_DPIPE_VALUE]); if (mapping) { value_mapping = mnl_attr_get_u32(nla_match_value[DEVLINK_ATTR_DPIPE_VALUE_MAPPING]); pr_out_uint(ctx->dl, "mapping_value", value_mapping); } if (mask) { value_mask = mnl_attr_get_payload(nla_match_value[DEVLINK_ATTR_DPIPE_VALUE]); __pr_out_entry_value(ctx, value_mask, value_len, info, DPIPE_VALUE_TYPE_MASK); } __pr_out_entry_value(ctx, value, value_len, info, DPIPE_VALUE_TYPE_VALUE); } static int dpipe_entry_match_value_show(struct dpipe_ctx *ctx, struct nlattr *nl) { struct nlattr *nla_match_value[DEVLINK_ATTR_MAX + 1] = {}; struct dpipe_match match; int err; err = mnl_attr_parse_nested(nl, attr_cb, nla_match_value); if (err != MNL_CB_OK) return -EINVAL; if (!nla_match_value[DEVLINK_ATTR_DPIPE_MATCH] || !nla_match_value[DEVLINK_ATTR_DPIPE_VALUE]) { return -EINVAL; } pr_out_entry_start(ctx->dl); if (dpipe_match_parse(&match, nla_match_value[DEVLINK_ATTR_DPIPE_MATCH])) goto err_match_parse; pr_out_dpipe_match(&match, ctx); pr_out_dpipe_entry_value(ctx, nla_match_value, &match.info); pr_out_entry_end(ctx->dl); return 0; err_match_parse: pr_out_entry_end(ctx->dl); return -EINVAL; } static int dpipe_entry_action_value_show(struct dpipe_ctx *ctx, struct nlattr *nl) { struct nlattr *nla_action_value[DEVLINK_ATTR_MAX + 1] = {}; struct dpipe_action action; int err; err = mnl_attr_parse_nested(nl, attr_cb, nla_action_value); if (err != MNL_CB_OK) return -EINVAL; if (!nla_action_value[DEVLINK_ATTR_DPIPE_ACTION] || !nla_action_value[DEVLINK_ATTR_DPIPE_VALUE]) { return -EINVAL; } pr_out_entry_start(ctx->dl); if (dpipe_action_parse(&action, nla_action_value[DEVLINK_ATTR_DPIPE_ACTION])) goto err_action_parse; pr_out_dpipe_action(&action, ctx); pr_out_dpipe_entry_value(ctx, nla_action_value, &action.info); pr_out_entry_end(ctx->dl); return 0; err_action_parse: pr_out_entry_end(ctx->dl); return -EINVAL; } static int dpipe_tables_action_values_show(struct dpipe_ctx *ctx, struct nlattr *nla_action_values) { struct nlattr *nla_action_value; mnl_attr_for_each_nested(nla_action_value, nla_action_values) { if (dpipe_entry_action_value_show(ctx, nla_action_value)) return -EINVAL; } return 0; } static int dpipe_tables_match_values_show(struct dpipe_ctx *ctx, struct nlattr *nla_match_values) { struct nlattr *nla_match_value; mnl_attr_for_each_nested(nla_match_value, nla_match_values) { if (dpipe_entry_match_value_show(ctx, nla_match_value)) return -EINVAL; } return 0; } static int dpipe_entry_show(struct dpipe_ctx *ctx, struct nlattr *nl) { struct nlattr *nla_entry[DEVLINK_ATTR_MAX + 1] = {}; uint32_t entry_index; uint64_t counter; int err; err = mnl_attr_parse_nested(nl, attr_cb, nla_entry); if (err != MNL_CB_OK) return -EINVAL; if (!nla_entry[DEVLINK_ATTR_DPIPE_ENTRY_INDEX] || !nla_entry[DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES] || !nla_entry[DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES]) { return -EINVAL; } entry_index = mnl_attr_get_u32(nla_entry[DEVLINK_ATTR_DPIPE_ENTRY_INDEX]); pr_out_uint(ctx->dl, "index", entry_index); if (nla_entry[DEVLINK_ATTR_DPIPE_ENTRY_COUNTER]) { counter = mnl_attr_get_u64(nla_entry[DEVLINK_ATTR_DPIPE_ENTRY_COUNTER]); pr_out_uint(ctx->dl, "counter", counter); } pr_out_array_start(ctx->dl, "match_value"); if (dpipe_tables_match_values_show(ctx, nla_entry[DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES])) goto err_match_values_show; pr_out_array_end(ctx->dl); pr_out_array_start(ctx->dl, "action_value"); if (dpipe_tables_action_values_show(ctx, nla_entry[DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES])) goto err_action_values_show; pr_out_array_end(ctx->dl); return 0; err_action_values_show: err_match_values_show: pr_out_array_end(ctx->dl); return -EINVAL; } static int dpipe_table_entries_show(struct dpipe_ctx *ctx, struct nlattr **tb) { struct nlattr *nla_entries = tb[DEVLINK_ATTR_DPIPE_ENTRIES]; struct nlattr *nla_entry; mnl_attr_for_each_nested(nla_entry, nla_entries) { pr_out_handle_start_arr(ctx->dl, tb); if (dpipe_entry_show(ctx, nla_entry)) goto err_entry_show; pr_out_handle_end(ctx->dl); } return 0; err_entry_show: pr_out_handle_end(ctx->dl); return -EINVAL; } static int cmd_dpipe_table_entry_dump_cb(const struct nlmsghdr *nlh, void *data) { struct dpipe_ctx *ctx = 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_DPIPE_ENTRIES]) return MNL_CB_ERROR; if (dpipe_table_entries_show(ctx, tb)) return MNL_CB_ERROR; return MNL_CB_OK; } static int cmd_dpipe_table_dump(struct dl *dl) { struct nlmsghdr *nlh; struct dpipe_ctx ctx = {}; uint16_t flags = NLM_F_REQUEST; int err; err = dpipe_ctx_init(&ctx, dl); if (err) return err; err = dl_argv_parse(dl, DL_OPT_HANDLE | DL_OPT_DPIPE_TABLE_NAME, 0); if (err) goto out; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_DPIPE_HEADERS_GET, flags); dl_opts_put(nlh, dl); err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_dpipe_header_cb, &ctx); if (err) { pr_err("error get headers %s\n", strerror(ctx.err)); goto out; } flags = NLM_F_REQUEST | NLM_F_ACK; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_DPIPE_ENTRIES_GET, flags); dl_opts_put(nlh, dl); pr_out_section_start(dl, "table_entry"); _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_dpipe_table_entry_dump_cb, &ctx); pr_out_section_end(dl); out: dpipe_ctx_fini(&ctx); return err; } static void cmd_dpipe_table_help(void) { pr_err("Usage: devlink dpipe table [ OBJECT-LIST ]\n" "where OBJECT-LIST := { show | set | dump }\n"); } static int cmd_dpipe_table(struct dl *dl) { if (dl_argv_match(dl, "help") || dl_no_arg(dl)) { cmd_dpipe_table_help(); return 0; } else if (dl_argv_match(dl, "show")) { dl_arg_inc(dl); return cmd_dpipe_table_show(dl); } else if (dl_argv_match(dl, "set")) { dl_arg_inc(dl); return cmd_dpipe_table_set(dl); } else if (dl_argv_match(dl, "dump")) { dl_arg_inc(dl); return cmd_dpipe_table_dump(dl); } pr_err("Command \"%s\" not found\n", dl_argv(dl)); return -ENOENT; } static void cmd_dpipe_help(void) { pr_err("Usage: devlink dpipe [ OBJECT-LIST ]\n" "where OBJECT-LIST := { header | table }\n"); } static int cmd_dpipe(struct dl *dl) { if (dl_argv_match(dl, "help") || dl_no_arg(dl)) { cmd_dpipe_help(); return 0; } else if (dl_argv_match(dl, "header")) { dl_arg_inc(dl); return cmd_dpipe_header(dl); } else if (dl_argv_match(dl, "table")) { dl_arg_inc(dl); return cmd_dpipe_table(dl); } pr_err("Command \"%s\" not found\n", dl_argv(dl)); return -ENOENT; } static int resource_parse(struct resource_ctx *ctx, struct resource *resource, struct nlattr **nla_resource) { if (!nla_resource[DEVLINK_ATTR_RESOURCE_NAME] || !nla_resource[DEVLINK_ATTR_RESOURCE_SIZE] || !nla_resource[DEVLINK_ATTR_RESOURCE_ID] || !nla_resource[DEVLINK_ATTR_RESOURCE_UNIT] || !nla_resource[DEVLINK_ATTR_RESOURCE_SIZE_MIN] || !nla_resource[DEVLINK_ATTR_RESOURCE_SIZE_MAX] || !nla_resource[DEVLINK_ATTR_RESOURCE_SIZE_GRAN]) { return -EINVAL; } resource->name = strdup(mnl_attr_get_str(nla_resource[DEVLINK_ATTR_RESOURCE_NAME])); resource->size = mnl_attr_get_u64(nla_resource[DEVLINK_ATTR_RESOURCE_SIZE]); resource->id = mnl_attr_get_u64(nla_resource[DEVLINK_ATTR_RESOURCE_ID]); resource->unit = mnl_attr_get_u8(nla_resource[DEVLINK_ATTR_RESOURCE_UNIT]); resource->size_min = mnl_attr_get_u64(nla_resource[DEVLINK_ATTR_RESOURCE_SIZE_MIN]); resource->size_max = mnl_attr_get_u64(nla_resource[DEVLINK_ATTR_RESOURCE_SIZE_MAX]); resource->size_gran = mnl_attr_get_u64(nla_resource[DEVLINK_ATTR_RESOURCE_SIZE_GRAN]); if (nla_resource[DEVLINK_ATTR_RESOURCE_SIZE_NEW]) resource->size_new = mnl_attr_get_u64(nla_resource[DEVLINK_ATTR_RESOURCE_SIZE_NEW]); else resource->size_new = resource->size; if (nla_resource[DEVLINK_ATTR_RESOURCE_OCC]) { resource->size_occ = mnl_attr_get_u64(nla_resource[DEVLINK_ATTR_RESOURCE_OCC]); resource->occ_valid = true; } if (resource->size_new != resource->size) ctx->pending_change = true; return 0; } static int resource_get(struct resource_ctx *ctx, struct resource *resource, struct resource *parent_resource, struct nlattr *nl) { struct nlattr *nla_resource[DEVLINK_ATTR_MAX + 1] = {}; struct nlattr *nla_child_resource; struct nlattr *nla_resources; bool top = false; int err; if (!resource) { nla_resources = nl; top = true; goto out; } err = mnl_attr_parse_nested(nl, attr_cb, nla_resource); if (err != MNL_CB_OK) return -EINVAL; err = resource_parse(ctx, resource, nla_resource); if (err) return err; resource->parent = parent_resource; if (!nla_resource[DEVLINK_ATTR_RESOURCE_LIST]) return 0; resource->size_valid = !!mnl_attr_get_u8(nla_resource[DEVLINK_ATTR_RESOURCE_SIZE_VALID]); nla_resources = nla_resource[DEVLINK_ATTR_RESOURCE_LIST]; out: mnl_attr_for_each_nested(nla_child_resource, nla_resources) { struct resource *child_resource; struct list_head *list; child_resource = resource_alloc(); if (!child_resource) return -ENOMEM; if (top) list = &ctx->resources->resource_list; else list = &resource->resource_list; list_add_tail(&child_resource->list, list); err = resource_get(ctx, child_resource, resource, nla_child_resource); if (err) return err; } return 0; } static const char *resource_unit_str_get(enum devlink_resource_unit unit) { switch (unit) { case DEVLINK_RESOURCE_UNIT_ENTRY: return "entry"; default: return ""; } } static void resource_show(struct resource *resource, struct resource_ctx *ctx) { struct resource *child_resource; struct dpipe_table *table; struct dl *dl = ctx->dl; bool array = false; pr_out_str(dl, "name", resource->name); if (dl->verbose) resource_path_print(dl, ctx->resources, resource->id); pr_out_u64(dl, "size", resource->size); if (resource->size != resource->size_new) pr_out_u64(dl, "size_new", resource->size_new); if (resource->occ_valid) pr_out_uint(dl, "occ", resource->size_occ); pr_out_str(dl, "unit", resource_unit_str_get(resource->unit)); if (resource->size_min != resource->size_max) { pr_out_uint(dl, "size_min", resource->size_min); pr_out_u64(dl, "size_max", resource->size_max); pr_out_uint(dl, "size_gran", resource->size_gran); } list_for_each_entry(table, &ctx->tables->table_list, list) if (table->resource_id == resource->id && table->resource_valid) array = true; if (array) pr_out_array_start(dl, "dpipe_tables"); else pr_out_str(dl, "dpipe_tables", "none"); list_for_each_entry(table, &ctx->tables->table_list, list) { if (table->resource_id != resource->id || !table->resource_valid) continue; pr_out_entry_start(dl); pr_out_str(dl, "table_name", table->name); pr_out_entry_end(dl); } if (array) pr_out_array_end(dl); if (list_empty(&resource->resource_list)) return; if (ctx->pending_change) pr_out_str(dl, "size_valid", resource->size_valid ? "true" : "false"); pr_out_array_start(dl, "resources"); list_for_each_entry(child_resource, &resource->resource_list, list) { pr_out_entry_start(dl); resource_show(child_resource, ctx); pr_out_entry_end(dl); } pr_out_array_end(dl); } static void resources_show(struct resource_ctx *ctx, struct nlattr **tb) { struct resources *resources = ctx->resources; struct resource *resource; list_for_each_entry(resource, &resources->resource_list, list) { pr_out_handle_start_arr(ctx->dl, tb); resource_show(resource, ctx); pr_out_handle_end(ctx->dl); } } static int resources_get(struct resource_ctx *ctx, struct nlattr **tb) { return resource_get(ctx, NULL, NULL, tb[DEVLINK_ATTR_RESOURCE_LIST]); } static int cmd_resource_dump_cb(const struct nlmsghdr *nlh, void *data) { struct resource_ctx *ctx = data; struct nlattr *tb[DEVLINK_ATTR_MAX + 1] = {}; struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); int err; mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb); if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME] || !tb[DEVLINK_ATTR_RESOURCE_LIST]) return MNL_CB_ERROR; err = resources_get(ctx, tb); if (err) { ctx->err = err; return MNL_CB_ERROR; } if (ctx->print_resources) resources_show(ctx, tb); return MNL_CB_OK; } static int cmd_resource_show(struct dl *dl) { struct nlmsghdr *nlh; struct dpipe_ctx dpipe_ctx = {}; struct resource_ctx resource_ctx = {}; int err; err = dl_argv_parse(dl, DL_OPT_HANDLE, 0); if (err) return err; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_DPIPE_TABLE_GET, NLM_F_REQUEST); dl_opts_put(nlh, dl); err = dpipe_ctx_init(&dpipe_ctx, dl); if (err) return err; err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_dpipe_table_show_cb, &dpipe_ctx); if (err) { pr_err("error get tables %s\n", strerror(dpipe_ctx.err)); goto out; } err = resource_ctx_init(&resource_ctx, dl); if (err) goto out; resource_ctx.print_resources = true; resource_ctx.tables = dpipe_ctx.tables; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_RESOURCE_DUMP, NLM_F_REQUEST | NLM_F_ACK); dl_opts_put(nlh, dl); pr_out_section_start(dl, "resources"); err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_resource_dump_cb, &resource_ctx); pr_out_section_end(dl); resource_ctx_fini(&resource_ctx); out: dpipe_ctx_fini(&dpipe_ctx); return err; } static void cmd_resource_help(void) { pr_err("Usage: devlink resource show DEV\n" " devlink resource set DEV path PATH size SIZE\n"); } static struct resource * resource_find_by_name(struct list_head *list, char *name) { struct resource *resource; list_for_each_entry(resource, list, list) { if (!strcmp(resource->name, name)) return resource; } return NULL; } static int resource_path_parse(struct resource_ctx *ctx, const char *resource_path, uint32_t *p_resource_id, bool *p_resource_valid) { struct resource *resource; uint32_t resource_id = 0; char *resource_path_dup; struct list_head *list; const char del[] = "/"; char *resource_name; resource_path_dup = strdup(resource_path); list = &ctx->resources->resource_list; resource_name = strtok(resource_path_dup, del); while (resource_name != NULL) { resource = resource_find_by_name(list, resource_name); if (!resource) goto err_resource_lookup; list = &resource->resource_list; resource_name = strtok(NULL, del); resource_id = resource->id; } free(resource_path_dup); *p_resource_valid = true; *p_resource_id = resource_id; return 0; err_resource_lookup: free(resource_path_dup); return -EINVAL; } static int cmd_resource_set(struct dl *dl) { struct nlmsghdr *nlh; struct resource_ctx ctx = {}; int err; err = resource_ctx_init(&ctx, dl); if (err) return err; ctx.print_resources = false; err = dl_argv_parse(dl, DL_OPT_HANDLE | DL_OPT_RESOURCE_PATH | DL_OPT_RESOURCE_SIZE, 0); if (err) goto out; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_RESOURCE_DUMP, NLM_F_REQUEST); dl_opts_put(nlh, dl); err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_resource_dump_cb, &ctx); if (err) { pr_err("error getting resources %s\n", strerror(ctx.err)); goto out; } err = resource_path_parse(&ctx, dl->opts.resource_path, &dl->opts.resource_id, &dl->opts.resource_id_valid); if (err) { pr_err("error parsing resource path %s\n", strerror(-err)); goto out; } nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_RESOURCE_SET, NLM_F_REQUEST | NLM_F_ACK); dl_opts_put(nlh, dl); err = _mnlg_socket_sndrcv(dl->nlg, nlh, NULL, NULL); out: resource_ctx_fini(&ctx); return err; } static int cmd_resource(struct dl *dl) { if (dl_argv_match(dl, "help") || dl_no_arg(dl)) { cmd_resource_help(); return 0; } else if (dl_argv_match(dl, "show")) { dl_arg_inc(dl); return cmd_resource_show(dl); } else if (dl_argv_match(dl, "set")) { dl_arg_inc(dl); return cmd_resource_set(dl); } pr_err("Command \"%s\" not found\n", dl_argv(dl)); return -ENOENT; } static void pr_out_region_handle_start(struct dl *dl, struct nlattr **tb) { const char *bus_name = mnl_attr_get_str(tb[DEVLINK_ATTR_BUS_NAME]); const char *dev_name = mnl_attr_get_str(tb[DEVLINK_ATTR_DEV_NAME]); const char *region_name = mnl_attr_get_str(tb[DEVLINK_ATTR_REGION_NAME]); char buf[256]; sprintf(buf, "%s/%s/%s", bus_name, dev_name, region_name); if (dl->json_output) { jsonw_name(dl->jw, buf); jsonw_start_object(dl->jw); } else { pr_out("%s:", buf); } } static void pr_out_region_handle_end(struct dl *dl) { if (dl->json_output) jsonw_end_object(dl->jw); else pr_out("\n"); } static void pr_out_region_snapshots_start(struct dl *dl, bool array) { if (dl->json_output) { jsonw_name(dl->jw, "snapshot"); jsonw_start_array(dl->jw); } else { if (g_indent_newline) pr_out("snapshot %s", array ? "[" : ""); else pr_out(" snapshot %s", array ? "[" : ""); } } static void pr_out_region_snapshots_end(struct dl *dl, bool array) { if (dl->json_output) jsonw_end_array(dl->jw); else if (array) pr_out("]"); } static void pr_out_region_snapshots_id(struct dl *dl, struct nlattr **tb, int index) { uint32_t snapshot_id; if (!tb[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) return; snapshot_id = mnl_attr_get_u32(tb[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); if (dl->json_output) jsonw_uint(dl->jw, snapshot_id); else pr_out("%s%u", index ? " " : "", snapshot_id); } static void pr_out_snapshots(struct dl *dl, struct nlattr **tb) { struct nlattr *tb_snapshot[DEVLINK_ATTR_MAX + 1] = {}; struct nlattr *nla_sanpshot; int err, index = 0; pr_out_region_snapshots_start(dl, true); mnl_attr_for_each_nested(nla_sanpshot, tb[DEVLINK_ATTR_REGION_SNAPSHOTS]) { err = mnl_attr_parse_nested(nla_sanpshot, attr_cb, tb_snapshot); if (err != MNL_CB_OK) return; pr_out_region_snapshots_id(dl, tb_snapshot, index++); } pr_out_region_snapshots_end(dl, true); } static void pr_out_snapshot(struct dl *dl, struct nlattr **tb) { pr_out_region_snapshots_start(dl, false); pr_out_region_snapshots_id(dl, tb, 0); pr_out_region_snapshots_end(dl, false); } static void pr_out_region(struct dl *dl, struct nlattr **tb) { pr_out_region_handle_start(dl, tb); if (tb[DEVLINK_ATTR_REGION_SIZE]) pr_out_u64(dl, "size", mnl_attr_get_u64(tb[DEVLINK_ATTR_REGION_SIZE])); if (tb[DEVLINK_ATTR_REGION_SNAPSHOTS]) pr_out_snapshots(dl, tb); if (tb[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) pr_out_snapshot(dl, tb); pr_out_region_handle_end(dl); } static int cmd_region_show_cb(const struct nlmsghdr *nlh, void *data) { struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); struct nlattr *tb[DEVLINK_ATTR_MAX + 1] = {}; struct dl *dl = data; mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb); if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME] || !tb[DEVLINK_ATTR_REGION_NAME] || !tb[DEVLINK_ATTR_REGION_SIZE]) return MNL_CB_ERROR; pr_out_region(dl, tb); return MNL_CB_OK; } static int cmd_region_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_REGION_GET, flags); if (dl_argc(dl) > 0) { err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE_REGION, 0); if (err) return err; } pr_out_section_start(dl, "regions"); err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_region_show_cb, dl); pr_out_section_end(dl); return err; } static int cmd_region_snapshot_del(struct dl *dl) { struct nlmsghdr *nlh; int err; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_REGION_DEL, NLM_F_REQUEST | NLM_F_ACK); err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE_REGION | DL_OPT_REGION_SNAPSHOT_ID, 0); if (err) return err; return _mnlg_socket_sndrcv(dl->nlg, nlh, NULL, NULL); } static int cmd_region_read_cb(const struct nlmsghdr *nlh, void *data) { struct nlattr *nla_entry, *nla_chunk_data, *nla_chunk_addr; struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); struct nlattr *tb_field[DEVLINK_ATTR_MAX + 1] = {}; struct nlattr *tb[DEVLINK_ATTR_MAX + 1] = {}; struct dl *dl = data; int err; mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb); if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME] || !tb[DEVLINK_ATTR_REGION_CHUNKS]) return MNL_CB_ERROR; mnl_attr_for_each_nested(nla_entry, tb[DEVLINK_ATTR_REGION_CHUNKS]) { err = mnl_attr_parse_nested(nla_entry, attr_cb, tb_field); if (err != MNL_CB_OK) return MNL_CB_ERROR; nla_chunk_data = tb_field[DEVLINK_ATTR_REGION_CHUNK_DATA]; if (!nla_chunk_data) continue; nla_chunk_addr = tb_field[DEVLINK_ATTR_REGION_CHUNK_ADDR]; if (!nla_chunk_addr) continue; pr_out_region_chunk(dl, mnl_attr_get_payload(nla_chunk_data), mnl_attr_get_payload_len(nla_chunk_data), mnl_attr_get_u64(nla_chunk_addr)); } return MNL_CB_OK; } static int cmd_region_dump(struct dl *dl) { struct nlmsghdr *nlh; int err; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_REGION_READ, NLM_F_REQUEST | NLM_F_ACK | NLM_F_DUMP); err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE_REGION | DL_OPT_REGION_SNAPSHOT_ID, 0); if (err) return err; pr_out_section_start(dl, "dump"); err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_region_read_cb, dl); pr_out_section_end(dl); if (!dl->json_output) pr_out("\n"); return err; } static int cmd_region_read(struct dl *dl) { struct nlmsghdr *nlh; int err; nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_REGION_READ, NLM_F_REQUEST | NLM_F_ACK | NLM_F_DUMP); err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE_REGION | DL_OPT_REGION_ADDRESS | DL_OPT_REGION_LENGTH | DL_OPT_REGION_SNAPSHOT_ID, 0); if (err) return err; pr_out_section_start(dl, "read"); err = _mnlg_socket_sndrcv(dl->nlg, nlh, cmd_region_read_cb, dl); pr_out_section_end(dl); if (!dl->json_output) pr_out("\n"); return err; } static void cmd_region_help(void) { pr_err("Usage: devlink region show [ DEV/REGION ]\n"); pr_err(" devlink region del DEV/REGION snapshot SNAPSHOT_ID\n"); pr_err(" devlink region dump DEV/REGION [ snapshot SNAPSHOT_ID ]\n"); pr_err(" devlink region read DEV/REGION [ snapshot SNAPSHOT_ID ] address ADDRESS length LENGTH\n"); } static int cmd_region(struct dl *dl) { if (dl_no_arg(dl)) { return cmd_region_show(dl); } else if (dl_argv_match(dl, "help")) { cmd_region_help(); return 0; } else if (dl_argv_match(dl, "show")) { dl_arg_inc(dl); return cmd_region_show(dl); } else if (dl_argv_match(dl, "del")) { dl_arg_inc(dl); return cmd_region_snapshot_del(dl); } else if (dl_argv_match(dl, "dump")) { dl_arg_inc(dl); return cmd_region_dump(dl); } else if (dl_argv_match(dl, "read")) { dl_arg_inc(dl); return cmd_region_read(dl); } pr_err("Command \"%s\" not found\n", dl_argv(dl)); return -ENOENT; } static void help(void) { pr_err("Usage: devlink [ OPTIONS ] OBJECT { COMMAND | help }\n" " devlink [ -f[orce] ] -b[atch] filename\n" "where OBJECT := { dev | port | sb | monitor | dpipe | resource | region }\n" " OPTIONS := { -V[ersion] | -n[o-nice-names] | -j[son] | -p[retty] | -v[erbose] }\n"); } static int dl_cmd(struct dl *dl, int argc, char **argv) { dl->argc = argc; dl->argv = argv; if (dl_argv_match(dl, "help") || dl_no_arg(dl)) { help(); return 0; } else if (dl_argv_match(dl, "dev")) { dl_arg_inc(dl); return cmd_dev(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); } else if (dl_argv_match(dl, "dpipe")) { dl_arg_inc(dl); return cmd_dpipe(dl); } else if (dl_argv_match(dl, "resource")) { dl_arg_inc(dl); return cmd_resource(dl); } else if (dl_argv_match(dl, "region")) { dl_arg_inc(dl); return cmd_region(dl); } pr_err("Object \"%s\" not found\n", dl_argv(dl)); return -ENOENT; } static int dl_init(struct dl *dl) { int err; dl->nlg = mnlg_socket_open(DEVLINK_GENL_NAME, DEVLINK_GENL_VERSION); if (!dl->nlg) { pr_err("Failed to connect to devlink Netlink\n"); return -errno; } err = ifname_map_init(dl); if (err) { pr_err("Failed to create index map\n"); goto err_ifname_map_create; } if (dl->json_output) { dl->jw = jsonw_new(stdout); if (!dl->jw) { pr_err("Failed to create JSON writer\n"); goto err_json_new; } jsonw_pretty(dl->jw, dl->pretty_output); } return 0; err_json_new: ifname_map_fini(dl); err_ifname_map_create: mnlg_socket_close(dl->nlg); return err; } static void dl_fini(struct dl *dl) { if (dl->json_output) jsonw_destroy(&dl->jw); ifname_map_fini(dl); mnlg_socket_close(dl->nlg); } static struct dl *dl_alloc(void) { struct dl *dl; dl = calloc(1, sizeof(*dl)); if (!dl) return NULL; return dl; } static void dl_free(struct dl *dl) { free(dl); } static int dl_batch(struct dl *dl, const char *name, bool force) { char *line = NULL; size_t len = 0; int ret = EXIT_SUCCESS; if (name && strcmp(name, "-") != 0) { if (freopen(name, "r", stdin) == NULL) { fprintf(stderr, "Cannot open file \"%s\" for reading: %s\n", name, strerror(errno)); return EXIT_FAILURE; } } cmdlineno = 0; while (getcmdline(&line, &len, stdin) != -1) { char *largv[100]; int largc; largc = makeargs(line, largv, 100); if (!largc) continue; /* blank line */ if (dl_cmd(dl, largc, largv)) { fprintf(stderr, "Command failed %s:%d\n", name, cmdlineno); ret = EXIT_FAILURE; if (!force) break; } } if (line) free(line); return ret; } int main(int argc, char **argv) { static const struct option long_options[] = { { "Version", no_argument, NULL, 'V' }, { "force", no_argument, NULL, 'f' }, { "batch", required_argument, NULL, 'b' }, { "no-nice-names", no_argument, NULL, 'n' }, { "json", no_argument, NULL, 'j' }, { "pretty", no_argument, NULL, 'p' }, { "verbose", no_argument, NULL, 'v' }, { NULL, 0, NULL, 0 } }; const char *batch_file = NULL; bool force = false; struct dl *dl; int opt; int err; int ret; dl = dl_alloc(); if (!dl) { pr_err("Failed to allocate memory for devlink\n"); return EXIT_FAILURE; } while ((opt = getopt_long(argc, argv, "Vfb:njpv", long_options, NULL)) >= 0) { switch (opt) { case 'V': printf("devlink utility, iproute2-ss%s\n", SNAPSHOT); ret = EXIT_SUCCESS; goto dl_free; case 'f': force = true; break; case 'b': batch_file = optarg; break; case 'n': dl->no_nice_names = true; break; case 'j': dl->json_output = true; break; case 'p': dl->pretty_output = true; break; case 'v': dl->verbose = true; break; default: pr_err("Unknown option.\n"); help(); ret = EXIT_FAILURE; goto dl_free; } } argc -= optind; argv += optind; err = dl_init(dl); if (err) { ret = EXIT_FAILURE; goto dl_free; } if (batch_file) err = dl_batch(dl, batch_file, force); else err = dl_cmd(dl, argc, argv); if (err) { ret = EXIT_FAILURE; goto dl_fini; } ret = EXIT_SUCCESS; dl_fini: dl_fini(dl); dl_free: dl_free(dl); return ret; }