# SPDX-License-Identifier: GPL-2.0
-obj-y := leftover.o core.o netlink.o netlink_gen.o dev.o port.o sb.o health.o \
+obj-y := leftover.o core.o netlink.o netlink_gen.o dev.o port.o sb.o dpipe.o \
+ health.o
struct genl_info *info);
int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb,
struct genl_info *info);
+int devlink_nl_cmd_dpipe_table_get(struct sk_buff *skb, struct genl_info *info);
+int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb,
+ struct genl_info *info);
+int devlink_nl_cmd_dpipe_headers_get(struct sk_buff *skb,
+ struct genl_info *info);
+int devlink_nl_cmd_dpipe_table_counters_set(struct sk_buff *skb,
+ struct genl_info *info);
int devlink_nl_cmd_health_reporter_set_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_cmd_health_reporter_recover_doit(struct sk_buff *skb,
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com>
+ */
+
+#include "devl_internal.h"
+
+static struct devlink_dpipe_field devlink_dpipe_fields_ethernet[] = {
+ {
+ .name = "destination mac",
+ .id = DEVLINK_DPIPE_FIELD_ETHERNET_DST_MAC,
+ .bitwidth = 48,
+ },
+};
+
+struct devlink_dpipe_header devlink_dpipe_header_ethernet = {
+ .name = "ethernet",
+ .id = DEVLINK_DPIPE_HEADER_ETHERNET,
+ .fields = devlink_dpipe_fields_ethernet,
+ .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ethernet),
+ .global = true,
+};
+EXPORT_SYMBOL_GPL(devlink_dpipe_header_ethernet);
+
+static struct devlink_dpipe_field devlink_dpipe_fields_ipv4[] = {
+ {
+ .name = "destination ip",
+ .id = DEVLINK_DPIPE_FIELD_IPV4_DST_IP,
+ .bitwidth = 32,
+ },
+};
+
+struct devlink_dpipe_header devlink_dpipe_header_ipv4 = {
+ .name = "ipv4",
+ .id = DEVLINK_DPIPE_HEADER_IPV4,
+ .fields = devlink_dpipe_fields_ipv4,
+ .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv4),
+ .global = true,
+};
+EXPORT_SYMBOL_GPL(devlink_dpipe_header_ipv4);
+
+static struct devlink_dpipe_field devlink_dpipe_fields_ipv6[] = {
+ {
+ .name = "destination ip",
+ .id = DEVLINK_DPIPE_FIELD_IPV6_DST_IP,
+ .bitwidth = 128,
+ },
+};
+
+struct devlink_dpipe_header devlink_dpipe_header_ipv6 = {
+ .name = "ipv6",
+ .id = DEVLINK_DPIPE_HEADER_IPV6,
+ .fields = devlink_dpipe_fields_ipv6,
+ .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv6),
+ .global = true,
+};
+EXPORT_SYMBOL_GPL(devlink_dpipe_header_ipv6);
+
+int devlink_dpipe_match_put(struct sk_buff *skb,
+ struct devlink_dpipe_match *match)
+{
+ struct devlink_dpipe_header *header = match->header;
+ struct devlink_dpipe_field *field = &header->fields[match->field_id];
+ struct nlattr *match_attr;
+
+ match_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_MATCH);
+ if (!match_attr)
+ return -EMSGSIZE;
+
+ if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_MATCH_TYPE, match->type) ||
+ nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, match->header_index) ||
+ nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) ||
+ nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) ||
+ nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global))
+ goto nla_put_failure;
+
+ nla_nest_end(skb, match_attr);
+ return 0;
+
+nla_put_failure:
+ nla_nest_cancel(skb, match_attr);
+ return -EMSGSIZE;
+}
+EXPORT_SYMBOL_GPL(devlink_dpipe_match_put);
+
+static int devlink_dpipe_matches_put(struct devlink_dpipe_table *table,
+ struct sk_buff *skb)
+{
+ struct nlattr *matches_attr;
+
+ matches_attr = nla_nest_start_noflag(skb,
+ DEVLINK_ATTR_DPIPE_TABLE_MATCHES);
+ if (!matches_attr)
+ return -EMSGSIZE;
+
+ if (table->table_ops->matches_dump(table->priv, skb))
+ goto nla_put_failure;
+
+ nla_nest_end(skb, matches_attr);
+ return 0;
+
+nla_put_failure:
+ nla_nest_cancel(skb, matches_attr);
+ return -EMSGSIZE;
+}
+
+int devlink_dpipe_action_put(struct sk_buff *skb,
+ struct devlink_dpipe_action *action)
+{
+ struct devlink_dpipe_header *header = action->header;
+ struct devlink_dpipe_field *field = &header->fields[action->field_id];
+ struct nlattr *action_attr;
+
+ action_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ACTION);
+ if (!action_attr)
+ return -EMSGSIZE;
+
+ if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_ACTION_TYPE, action->type) ||
+ nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, action->header_index) ||
+ nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) ||
+ nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) ||
+ nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global))
+ goto nla_put_failure;
+
+ nla_nest_end(skb, action_attr);
+ return 0;
+
+nla_put_failure:
+ nla_nest_cancel(skb, action_attr);
+ return -EMSGSIZE;
+}
+EXPORT_SYMBOL_GPL(devlink_dpipe_action_put);
+
+static int devlink_dpipe_actions_put(struct devlink_dpipe_table *table,
+ struct sk_buff *skb)
+{
+ struct nlattr *actions_attr;
+
+ actions_attr = nla_nest_start_noflag(skb,
+ DEVLINK_ATTR_DPIPE_TABLE_ACTIONS);
+ if (!actions_attr)
+ return -EMSGSIZE;
+
+ if (table->table_ops->actions_dump(table->priv, skb))
+ goto nla_put_failure;
+
+ nla_nest_end(skb, actions_attr);
+ return 0;
+
+nla_put_failure:
+ nla_nest_cancel(skb, actions_attr);
+ return -EMSGSIZE;
+}
+
+static int devlink_dpipe_table_put(struct sk_buff *skb,
+ struct devlink_dpipe_table *table)
+{
+ struct nlattr *table_attr;
+ u64 table_size;
+
+ table_size = table->table_ops->size_get(table->priv);
+ table_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLE);
+ if (!table_attr)
+ return -EMSGSIZE;
+
+ if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_TABLE_NAME, table->name) ||
+ nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_SIZE, table_size,
+ DEVLINK_ATTR_PAD))
+ goto nla_put_failure;
+ if (nla_put_u8(skb, DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED,
+ table->counters_enabled))
+ goto nla_put_failure;
+
+ if (table->resource_valid) {
+ if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID,
+ table->resource_id, DEVLINK_ATTR_PAD) ||
+ nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS,
+ table->resource_units, DEVLINK_ATTR_PAD))
+ goto nla_put_failure;
+ }
+ if (devlink_dpipe_matches_put(table, skb))
+ goto nla_put_failure;
+
+ if (devlink_dpipe_actions_put(table, skb))
+ goto nla_put_failure;
+
+ nla_nest_end(skb, table_attr);
+ return 0;
+
+nla_put_failure:
+ nla_nest_cancel(skb, table_attr);
+ return -EMSGSIZE;
+}
+
+static int devlink_dpipe_send_and_alloc_skb(struct sk_buff **pskb,
+ struct genl_info *info)
+{
+ int err;
+
+ if (*pskb) {
+ err = genlmsg_reply(*pskb, info);
+ if (err)
+ return err;
+ }
+ *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!*pskb)
+ return -ENOMEM;
+ return 0;
+}
+
+static int devlink_dpipe_tables_fill(struct genl_info *info,
+ enum devlink_command cmd, int flags,
+ struct list_head *dpipe_tables,
+ const char *table_name)
+{
+ struct devlink *devlink = info->user_ptr[0];
+ struct devlink_dpipe_table *table;
+ struct nlattr *tables_attr;
+ struct sk_buff *skb = NULL;
+ struct nlmsghdr *nlh;
+ bool incomplete;
+ void *hdr;
+ int i;
+ int err;
+
+ table = list_first_entry(dpipe_tables,
+ struct devlink_dpipe_table, list);
+start_again:
+ err = devlink_dpipe_send_and_alloc_skb(&skb, info);
+ if (err)
+ return err;
+
+ hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq,
+ &devlink_nl_family, NLM_F_MULTI, cmd);
+ if (!hdr) {
+ nlmsg_free(skb);
+ return -EMSGSIZE;
+ }
+
+ if (devlink_nl_put_handle(skb, devlink))
+ goto nla_put_failure;
+ tables_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLES);
+ if (!tables_attr)
+ goto nla_put_failure;
+
+ i = 0;
+ incomplete = false;
+ list_for_each_entry_from(table, dpipe_tables, list) {
+ if (!table_name) {
+ err = devlink_dpipe_table_put(skb, table);
+ if (err) {
+ if (!i)
+ goto err_table_put;
+ incomplete = true;
+ break;
+ }
+ } else {
+ if (!strcmp(table->name, table_name)) {
+ err = devlink_dpipe_table_put(skb, table);
+ if (err)
+ break;
+ }
+ }
+ i++;
+ }
+
+ nla_nest_end(skb, tables_attr);
+ genlmsg_end(skb, hdr);
+ if (incomplete)
+ goto start_again;
+
+send_done:
+ nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq,
+ NLMSG_DONE, 0, flags | NLM_F_MULTI);
+ if (!nlh) {
+ err = devlink_dpipe_send_and_alloc_skb(&skb, info);
+ if (err)
+ return err;
+ goto send_done;
+ }
+
+ return genlmsg_reply(skb, info);
+
+nla_put_failure:
+ err = -EMSGSIZE;
+err_table_put:
+ nlmsg_free(skb);
+ return err;
+}
+
+int devlink_nl_cmd_dpipe_table_get(struct sk_buff *skb, struct genl_info *info)
+{
+ struct devlink *devlink = info->user_ptr[0];
+ const char *table_name = NULL;
+
+ if (info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME])
+ table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]);
+
+ return devlink_dpipe_tables_fill(info, DEVLINK_CMD_DPIPE_TABLE_GET, 0,
+ &devlink->dpipe_table_list,
+ table_name);
+}
+
+static int devlink_dpipe_value_put(struct sk_buff *skb,
+ struct devlink_dpipe_value *value)
+{
+ if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE,
+ value->value_size, value->value))
+ return -EMSGSIZE;
+ if (value->mask)
+ if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE_MASK,
+ value->value_size, value->mask))
+ return -EMSGSIZE;
+ if (value->mapping_valid)
+ if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_VALUE_MAPPING,
+ value->mapping_value))
+ return -EMSGSIZE;
+ return 0;
+}
+
+static int devlink_dpipe_action_value_put(struct sk_buff *skb,
+ struct devlink_dpipe_value *value)
+{
+ if (!value->action)
+ return -EINVAL;
+ if (devlink_dpipe_action_put(skb, value->action))
+ return -EMSGSIZE;
+ if (devlink_dpipe_value_put(skb, value))
+ return -EMSGSIZE;
+ return 0;
+}
+
+static int devlink_dpipe_action_values_put(struct sk_buff *skb,
+ struct devlink_dpipe_value *values,
+ unsigned int values_count)
+{
+ struct nlattr *action_attr;
+ int i;
+ int err;
+
+ for (i = 0; i < values_count; i++) {
+ action_attr = nla_nest_start_noflag(skb,
+ DEVLINK_ATTR_DPIPE_ACTION_VALUE);
+ if (!action_attr)
+ return -EMSGSIZE;
+ err = devlink_dpipe_action_value_put(skb, &values[i]);
+ if (err)
+ goto err_action_value_put;
+ nla_nest_end(skb, action_attr);
+ }
+ return 0;
+
+err_action_value_put:
+ nla_nest_cancel(skb, action_attr);
+ return err;
+}
+
+static int devlink_dpipe_match_value_put(struct sk_buff *skb,
+ struct devlink_dpipe_value *value)
+{
+ if (!value->match)
+ return -EINVAL;
+ if (devlink_dpipe_match_put(skb, value->match))
+ return -EMSGSIZE;
+ if (devlink_dpipe_value_put(skb, value))
+ return -EMSGSIZE;
+ return 0;
+}
+
+static int devlink_dpipe_match_values_put(struct sk_buff *skb,
+ struct devlink_dpipe_value *values,
+ unsigned int values_count)
+{
+ struct nlattr *match_attr;
+ int i;
+ int err;
+
+ for (i = 0; i < values_count; i++) {
+ match_attr = nla_nest_start_noflag(skb,
+ DEVLINK_ATTR_DPIPE_MATCH_VALUE);
+ if (!match_attr)
+ return -EMSGSIZE;
+ err = devlink_dpipe_match_value_put(skb, &values[i]);
+ if (err)
+ goto err_match_value_put;
+ nla_nest_end(skb, match_attr);
+ }
+ return 0;
+
+err_match_value_put:
+ nla_nest_cancel(skb, match_attr);
+ return err;
+}
+
+static int devlink_dpipe_entry_put(struct sk_buff *skb,
+ struct devlink_dpipe_entry *entry)
+{
+ struct nlattr *entry_attr, *matches_attr, *actions_attr;
+ int err;
+
+ entry_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ENTRY);
+ if (!entry_attr)
+ return -EMSGSIZE;
+
+ if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_INDEX, entry->index,
+ DEVLINK_ATTR_PAD))
+ goto nla_put_failure;
+ if (entry->counter_valid)
+ if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_COUNTER,
+ entry->counter, DEVLINK_ATTR_PAD))
+ goto nla_put_failure;
+
+ matches_attr = nla_nest_start_noflag(skb,
+ DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES);
+ if (!matches_attr)
+ goto nla_put_failure;
+
+ err = devlink_dpipe_match_values_put(skb, entry->match_values,
+ entry->match_values_count);
+ if (err) {
+ nla_nest_cancel(skb, matches_attr);
+ goto err_match_values_put;
+ }
+ nla_nest_end(skb, matches_attr);
+
+ actions_attr = nla_nest_start_noflag(skb,
+ DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES);
+ if (!actions_attr)
+ goto nla_put_failure;
+
+ err = devlink_dpipe_action_values_put(skb, entry->action_values,
+ entry->action_values_count);
+ if (err) {
+ nla_nest_cancel(skb, actions_attr);
+ goto err_action_values_put;
+ }
+ nla_nest_end(skb, actions_attr);
+
+ nla_nest_end(skb, entry_attr);
+ return 0;
+
+nla_put_failure:
+ err = -EMSGSIZE;
+err_match_values_put:
+err_action_values_put:
+ nla_nest_cancel(skb, entry_attr);
+ return err;
+}
+
+static struct devlink_dpipe_table *
+devlink_dpipe_table_find(struct list_head *dpipe_tables,
+ const char *table_name, struct devlink *devlink)
+{
+ struct devlink_dpipe_table *table;
+
+ list_for_each_entry_rcu(table, dpipe_tables, list,
+ lockdep_is_held(&devlink->lock)) {
+ if (!strcmp(table->name, table_name))
+ return table;
+ }
+ return NULL;
+}
+
+int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx)
+{
+ struct devlink *devlink;
+ int err;
+
+ err = devlink_dpipe_send_and_alloc_skb(&dump_ctx->skb,
+ dump_ctx->info);
+ if (err)
+ return err;
+
+ dump_ctx->hdr = genlmsg_put(dump_ctx->skb,
+ dump_ctx->info->snd_portid,
+ dump_ctx->info->snd_seq,
+ &devlink_nl_family, NLM_F_MULTI,
+ dump_ctx->cmd);
+ if (!dump_ctx->hdr)
+ goto nla_put_failure;
+
+ devlink = dump_ctx->info->user_ptr[0];
+ if (devlink_nl_put_handle(dump_ctx->skb, devlink))
+ goto nla_put_failure;
+ dump_ctx->nest = nla_nest_start_noflag(dump_ctx->skb,
+ DEVLINK_ATTR_DPIPE_ENTRIES);
+ if (!dump_ctx->nest)
+ goto nla_put_failure;
+ return 0;
+
+nla_put_failure:
+ nlmsg_free(dump_ctx->skb);
+ return -EMSGSIZE;
+}
+EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_prepare);
+
+int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx,
+ struct devlink_dpipe_entry *entry)
+{
+ return devlink_dpipe_entry_put(dump_ctx->skb, entry);
+}
+EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_append);
+
+int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx)
+{
+ nla_nest_end(dump_ctx->skb, dump_ctx->nest);
+ genlmsg_end(dump_ctx->skb, dump_ctx->hdr);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_close);
+
+void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry)
+
+{
+ unsigned int value_count, value_index;
+ struct devlink_dpipe_value *value;
+
+ value = entry->action_values;
+ value_count = entry->action_values_count;
+ for (value_index = 0; value_index < value_count; value_index++) {
+ kfree(value[value_index].value);
+ kfree(value[value_index].mask);
+ }
+
+ value = entry->match_values;
+ value_count = entry->match_values_count;
+ for (value_index = 0; value_index < value_count; value_index++) {
+ kfree(value[value_index].value);
+ kfree(value[value_index].mask);
+ }
+}
+EXPORT_SYMBOL_GPL(devlink_dpipe_entry_clear);
+
+static int devlink_dpipe_entries_fill(struct genl_info *info,
+ enum devlink_command cmd, int flags,
+ struct devlink_dpipe_table *table)
+{
+ struct devlink_dpipe_dump_ctx dump_ctx;
+ struct nlmsghdr *nlh;
+ int err;
+
+ dump_ctx.skb = NULL;
+ dump_ctx.cmd = cmd;
+ dump_ctx.info = info;
+
+ err = table->table_ops->entries_dump(table->priv,
+ table->counters_enabled,
+ &dump_ctx);
+ if (err)
+ return err;
+
+send_done:
+ nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq,
+ NLMSG_DONE, 0, flags | NLM_F_MULTI);
+ if (!nlh) {
+ err = devlink_dpipe_send_and_alloc_skb(&dump_ctx.skb, info);
+ if (err)
+ return err;
+ goto send_done;
+ }
+ return genlmsg_reply(dump_ctx.skb, info);
+}
+
+int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct devlink *devlink = info->user_ptr[0];
+ struct devlink_dpipe_table *table;
+ const char *table_name;
+
+ if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_DPIPE_TABLE_NAME))
+ return -EINVAL;
+
+ table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]);
+ table = devlink_dpipe_table_find(&devlink->dpipe_table_list,
+ table_name, devlink);
+ if (!table)
+ return -EINVAL;
+
+ if (!table->table_ops->entries_dump)
+ return -EINVAL;
+
+ return devlink_dpipe_entries_fill(info, DEVLINK_CMD_DPIPE_ENTRIES_GET,
+ 0, table);
+}
+
+static int devlink_dpipe_fields_put(struct sk_buff *skb,
+ const struct devlink_dpipe_header *header)
+{
+ struct devlink_dpipe_field *field;
+ struct nlattr *field_attr;
+ int i;
+
+ for (i = 0; i < header->fields_count; i++) {
+ field = &header->fields[i];
+ field_attr = nla_nest_start_noflag(skb,
+ DEVLINK_ATTR_DPIPE_FIELD);
+ if (!field_attr)
+ return -EMSGSIZE;
+ if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_FIELD_NAME, field->name) ||
+ nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) ||
+ nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH, field->bitwidth) ||
+ nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE, field->mapping_type))
+ goto nla_put_failure;
+ nla_nest_end(skb, field_attr);
+ }
+ return 0;
+
+nla_put_failure:
+ nla_nest_cancel(skb, field_attr);
+ return -EMSGSIZE;
+}
+
+static int devlink_dpipe_header_put(struct sk_buff *skb,
+ struct devlink_dpipe_header *header)
+{
+ struct nlattr *fields_attr, *header_attr;
+ int err;
+
+ header_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADER);
+ if (!header_attr)
+ return -EMSGSIZE;
+
+ if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_HEADER_NAME, header->name) ||
+ nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) ||
+ nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global))
+ goto nla_put_failure;
+
+ fields_attr = nla_nest_start_noflag(skb,
+ DEVLINK_ATTR_DPIPE_HEADER_FIELDS);
+ if (!fields_attr)
+ goto nla_put_failure;
+
+ err = devlink_dpipe_fields_put(skb, header);
+ if (err) {
+ nla_nest_cancel(skb, fields_attr);
+ goto nla_put_failure;
+ }
+ nla_nest_end(skb, fields_attr);
+ nla_nest_end(skb, header_attr);
+ return 0;
+
+nla_put_failure:
+ err = -EMSGSIZE;
+ nla_nest_cancel(skb, header_attr);
+ return err;
+}
+
+static int devlink_dpipe_headers_fill(struct genl_info *info,
+ enum devlink_command cmd, int flags,
+ struct devlink_dpipe_headers *
+ dpipe_headers)
+{
+ struct devlink *devlink = info->user_ptr[0];
+ struct nlattr *headers_attr;
+ struct sk_buff *skb = NULL;
+ struct nlmsghdr *nlh;
+ void *hdr;
+ int i, j;
+ int err;
+
+ i = 0;
+start_again:
+ err = devlink_dpipe_send_and_alloc_skb(&skb, info);
+ if (err)
+ return err;
+
+ hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq,
+ &devlink_nl_family, NLM_F_MULTI, cmd);
+ if (!hdr) {
+ nlmsg_free(skb);
+ return -EMSGSIZE;
+ }
+
+ if (devlink_nl_put_handle(skb, devlink))
+ goto nla_put_failure;
+ headers_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADERS);
+ if (!headers_attr)
+ goto nla_put_failure;
+
+ j = 0;
+ for (; i < dpipe_headers->headers_count; i++) {
+ err = devlink_dpipe_header_put(skb, dpipe_headers->headers[i]);
+ if (err) {
+ if (!j)
+ goto err_table_put;
+ break;
+ }
+ j++;
+ }
+ nla_nest_end(skb, headers_attr);
+ genlmsg_end(skb, hdr);
+ if (i != dpipe_headers->headers_count)
+ goto start_again;
+
+send_done:
+ nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq,
+ NLMSG_DONE, 0, flags | NLM_F_MULTI);
+ if (!nlh) {
+ err = devlink_dpipe_send_and_alloc_skb(&skb, info);
+ if (err)
+ return err;
+ goto send_done;
+ }
+ return genlmsg_reply(skb, info);
+
+nla_put_failure:
+ err = -EMSGSIZE;
+err_table_put:
+ nlmsg_free(skb);
+ return err;
+}
+
+int devlink_nl_cmd_dpipe_headers_get(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct devlink *devlink = info->user_ptr[0];
+
+ if (!devlink->dpipe_headers)
+ return -EOPNOTSUPP;
+ return devlink_dpipe_headers_fill(info, DEVLINK_CMD_DPIPE_HEADERS_GET,
+ 0, devlink->dpipe_headers);
+}
+
+static int devlink_dpipe_table_counters_set(struct devlink *devlink,
+ const char *table_name,
+ bool enable)
+{
+ struct devlink_dpipe_table *table;
+
+ table = devlink_dpipe_table_find(&devlink->dpipe_table_list,
+ table_name, devlink);
+ if (!table)
+ return -EINVAL;
+
+ if (table->counter_control_extern)
+ return -EOPNOTSUPP;
+
+ if (!(table->counters_enabled ^ enable))
+ return 0;
+
+ table->counters_enabled = enable;
+ if (table->table_ops->counters_set_update)
+ table->table_ops->counters_set_update(table->priv, enable);
+ return 0;
+}
+
+int devlink_nl_cmd_dpipe_table_counters_set(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct devlink *devlink = info->user_ptr[0];
+ const char *table_name;
+ bool counters_enable;
+
+ if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_DPIPE_TABLE_NAME) ||
+ GENL_REQ_ATTR_CHECK(info,
+ DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED))
+ return -EINVAL;
+
+ table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]);
+ counters_enable = !!nla_get_u8(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]);
+
+ return devlink_dpipe_table_counters_set(devlink, table_name,
+ counters_enable);
+}
+
+/**
+ * devl_dpipe_headers_register - register dpipe headers
+ *
+ * @devlink: devlink
+ * @dpipe_headers: dpipe header array
+ *
+ * Register the headers supported by hardware.
+ */
+void devl_dpipe_headers_register(struct devlink *devlink,
+ struct devlink_dpipe_headers *dpipe_headers)
+{
+ lockdep_assert_held(&devlink->lock);
+
+ devlink->dpipe_headers = dpipe_headers;
+}
+EXPORT_SYMBOL_GPL(devl_dpipe_headers_register);
+
+/**
+ * devl_dpipe_headers_unregister - unregister dpipe headers
+ *
+ * @devlink: devlink
+ *
+ * Unregister the headers supported by hardware.
+ */
+void devl_dpipe_headers_unregister(struct devlink *devlink)
+{
+ lockdep_assert_held(&devlink->lock);
+
+ devlink->dpipe_headers = NULL;
+}
+EXPORT_SYMBOL_GPL(devl_dpipe_headers_unregister);
+
+/**
+ * devlink_dpipe_table_counter_enabled - check if counter allocation
+ * required
+ * @devlink: devlink
+ * @table_name: tables name
+ *
+ * Used by driver to check if counter allocation is required.
+ * After counter allocation is turned on the table entries
+ * are updated to include counter statistics.
+ *
+ * After that point on the driver must respect the counter
+ * state so that each entry added to the table is added
+ * with a counter.
+ */
+bool devlink_dpipe_table_counter_enabled(struct devlink *devlink,
+ const char *table_name)
+{
+ struct devlink_dpipe_table *table;
+ bool enabled;
+
+ rcu_read_lock();
+ table = devlink_dpipe_table_find(&devlink->dpipe_table_list,
+ table_name, devlink);
+ enabled = false;
+ if (table)
+ enabled = table->counters_enabled;
+ rcu_read_unlock();
+ return enabled;
+}
+EXPORT_SYMBOL_GPL(devlink_dpipe_table_counter_enabled);
+
+/**
+ * devl_dpipe_table_register - register dpipe table
+ *
+ * @devlink: devlink
+ * @table_name: table name
+ * @table_ops: table ops
+ * @priv: priv
+ * @counter_control_extern: external control for counters
+ */
+int devl_dpipe_table_register(struct devlink *devlink,
+ const char *table_name,
+ struct devlink_dpipe_table_ops *table_ops,
+ void *priv, bool counter_control_extern)
+{
+ struct devlink_dpipe_table *table;
+
+ lockdep_assert_held(&devlink->lock);
+
+ if (WARN_ON(!table_ops->size_get))
+ return -EINVAL;
+
+ if (devlink_dpipe_table_find(&devlink->dpipe_table_list, table_name,
+ devlink))
+ return -EEXIST;
+
+ table = kzalloc(sizeof(*table), GFP_KERNEL);
+ if (!table)
+ return -ENOMEM;
+
+ table->name = table_name;
+ table->table_ops = table_ops;
+ table->priv = priv;
+ table->counter_control_extern = counter_control_extern;
+
+ list_add_tail_rcu(&table->list, &devlink->dpipe_table_list);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(devl_dpipe_table_register);
+
+/**
+ * devl_dpipe_table_unregister - unregister dpipe table
+ *
+ * @devlink: devlink
+ * @table_name: table name
+ */
+void devl_dpipe_table_unregister(struct devlink *devlink,
+ const char *table_name)
+{
+ struct devlink_dpipe_table *table;
+
+ lockdep_assert_held(&devlink->lock);
+
+ table = devlink_dpipe_table_find(&devlink->dpipe_table_list,
+ table_name, devlink);
+ if (!table)
+ return;
+ list_del_rcu(&table->list);
+ kfree_rcu(table, rcu);
+}
+EXPORT_SYMBOL_GPL(devl_dpipe_table_unregister);
+
+/**
+ * devl_dpipe_table_resource_set - set the resource id
+ *
+ * @devlink: devlink
+ * @table_name: table name
+ * @resource_id: resource id
+ * @resource_units: number of resource's units consumed per table's entry
+ */
+int devl_dpipe_table_resource_set(struct devlink *devlink,
+ const char *table_name, u64 resource_id,
+ u64 resource_units)
+{
+ struct devlink_dpipe_table *table;
+
+ table = devlink_dpipe_table_find(&devlink->dpipe_table_list,
+ table_name, devlink);
+ if (!table)
+ return -EINVAL;
+
+ table->resource_id = resource_id;
+ table->resource_units = resource_units;
+ table->resource_valid = true;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(devl_dpipe_table_resource_set);
void *occ_get_priv;
};
-static struct devlink_dpipe_field devlink_dpipe_fields_ethernet[] = {
- {
- .name = "destination mac",
- .id = DEVLINK_DPIPE_FIELD_ETHERNET_DST_MAC,
- .bitwidth = 48,
- },
-};
-
-struct devlink_dpipe_header devlink_dpipe_header_ethernet = {
- .name = "ethernet",
- .id = DEVLINK_DPIPE_HEADER_ETHERNET,
- .fields = devlink_dpipe_fields_ethernet,
- .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ethernet),
- .global = true,
-};
-EXPORT_SYMBOL_GPL(devlink_dpipe_header_ethernet);
-
-static struct devlink_dpipe_field devlink_dpipe_fields_ipv4[] = {
- {
- .name = "destination ip",
- .id = DEVLINK_DPIPE_FIELD_IPV4_DST_IP,
- .bitwidth = 32,
- },
-};
-
-struct devlink_dpipe_header devlink_dpipe_header_ipv4 = {
- .name = "ipv4",
- .id = DEVLINK_DPIPE_HEADER_IPV4,
- .fields = devlink_dpipe_fields_ipv4,
- .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv4),
- .global = true,
-};
-EXPORT_SYMBOL_GPL(devlink_dpipe_header_ipv4);
-
-static struct devlink_dpipe_field devlink_dpipe_fields_ipv6[] = {
- {
- .name = "destination ip",
- .id = DEVLINK_DPIPE_FIELD_IPV6_DST_IP,
- .bitwidth = 128,
- },
-};
-
-struct devlink_dpipe_header devlink_dpipe_header_ipv6 = {
- .name = "ipv6",
- .id = DEVLINK_DPIPE_HEADER_IPV6,
- .fields = devlink_dpipe_fields_ipv6,
- .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv6),
- .global = true,
-};
-EXPORT_SYMBOL_GPL(devlink_dpipe_header_ipv6);
-
EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg);
EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwerr);
EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_trap_report);
return 0;
}
-int devlink_dpipe_match_put(struct sk_buff *skb,
- struct devlink_dpipe_match *match)
-{
- struct devlink_dpipe_header *header = match->header;
- struct devlink_dpipe_field *field = &header->fields[match->field_id];
- struct nlattr *match_attr;
-
- match_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_MATCH);
- if (!match_attr)
- return -EMSGSIZE;
-
- if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_MATCH_TYPE, match->type) ||
- nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, match->header_index) ||
- nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) ||
- nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) ||
- nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global))
- goto nla_put_failure;
-
- nla_nest_end(skb, match_attr);
- return 0;
-
-nla_put_failure:
- nla_nest_cancel(skb, match_attr);
- return -EMSGSIZE;
-}
-EXPORT_SYMBOL_GPL(devlink_dpipe_match_put);
-
-static int devlink_dpipe_matches_put(struct devlink_dpipe_table *table,
- struct sk_buff *skb)
-{
- struct nlattr *matches_attr;
-
- matches_attr = nla_nest_start_noflag(skb,
- DEVLINK_ATTR_DPIPE_TABLE_MATCHES);
- if (!matches_attr)
- return -EMSGSIZE;
-
- if (table->table_ops->matches_dump(table->priv, skb))
- goto nla_put_failure;
-
- nla_nest_end(skb, matches_attr);
- return 0;
-
-nla_put_failure:
- nla_nest_cancel(skb, matches_attr);
- return -EMSGSIZE;
-}
-
-int devlink_dpipe_action_put(struct sk_buff *skb,
- struct devlink_dpipe_action *action)
-{
- struct devlink_dpipe_header *header = action->header;
- struct devlink_dpipe_field *field = &header->fields[action->field_id];
- struct nlattr *action_attr;
-
- action_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ACTION);
- if (!action_attr)
- return -EMSGSIZE;
-
- if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_ACTION_TYPE, action->type) ||
- nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, action->header_index) ||
- nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) ||
- nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) ||
- nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global))
- goto nla_put_failure;
-
- nla_nest_end(skb, action_attr);
- return 0;
-
-nla_put_failure:
- nla_nest_cancel(skb, action_attr);
- return -EMSGSIZE;
-}
-EXPORT_SYMBOL_GPL(devlink_dpipe_action_put);
-
-static int devlink_dpipe_actions_put(struct devlink_dpipe_table *table,
- struct sk_buff *skb)
-{
- struct nlattr *actions_attr;
-
- actions_attr = nla_nest_start_noflag(skb,
- DEVLINK_ATTR_DPIPE_TABLE_ACTIONS);
- if (!actions_attr)
- return -EMSGSIZE;
-
- if (table->table_ops->actions_dump(table->priv, skb))
- goto nla_put_failure;
-
- nla_nest_end(skb, actions_attr);
- return 0;
-
-nla_put_failure:
- nla_nest_cancel(skb, actions_attr);
- return -EMSGSIZE;
-}
-
-static int devlink_dpipe_table_put(struct sk_buff *skb,
- struct devlink_dpipe_table *table)
-{
- struct nlattr *table_attr;
- u64 table_size;
-
- table_size = table->table_ops->size_get(table->priv);
- table_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLE);
- if (!table_attr)
- return -EMSGSIZE;
-
- if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_TABLE_NAME, table->name) ||
- nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_SIZE, table_size,
- DEVLINK_ATTR_PAD))
- goto nla_put_failure;
- if (nla_put_u8(skb, DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED,
- table->counters_enabled))
- goto nla_put_failure;
-
- if (table->resource_valid) {
- if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID,
- table->resource_id, DEVLINK_ATTR_PAD) ||
- nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS,
- table->resource_units, DEVLINK_ATTR_PAD))
- goto nla_put_failure;
- }
- if (devlink_dpipe_matches_put(table, skb))
- goto nla_put_failure;
-
- if (devlink_dpipe_actions_put(table, skb))
- goto nla_put_failure;
-
- nla_nest_end(skb, table_attr);
- return 0;
-
-nla_put_failure:
- nla_nest_cancel(skb, table_attr);
- return -EMSGSIZE;
-}
-
-static int devlink_dpipe_tables_fill(struct genl_info *info,
- enum devlink_command cmd, int flags,
- struct list_head *dpipe_tables,
- const char *table_name)
-{
- struct devlink *devlink = info->user_ptr[0];
- struct devlink_dpipe_table *table;
- struct nlattr *tables_attr;
- struct sk_buff *skb = NULL;
- struct nlmsghdr *nlh;
- bool incomplete;
- void *hdr;
- int i;
- int err;
-
- table = list_first_entry(dpipe_tables,
- struct devlink_dpipe_table, list);
-start_again:
- err = devlink_nl_msg_reply_and_new(&skb, info);
- if (err)
- return err;
-
- hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq,
- &devlink_nl_family, NLM_F_MULTI, cmd);
- if (!hdr) {
- nlmsg_free(skb);
- return -EMSGSIZE;
- }
-
- if (devlink_nl_put_handle(skb, devlink))
- goto nla_put_failure;
- tables_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLES);
- if (!tables_attr)
- goto nla_put_failure;
-
- i = 0;
- incomplete = false;
- list_for_each_entry_from(table, dpipe_tables, list) {
- if (!table_name) {
- err = devlink_dpipe_table_put(skb, table);
- if (err) {
- if (!i)
- goto err_table_put;
- incomplete = true;
- break;
- }
- } else {
- if (!strcmp(table->name, table_name)) {
- err = devlink_dpipe_table_put(skb, table);
- if (err)
- break;
- }
- }
- i++;
- }
-
- nla_nest_end(skb, tables_attr);
- genlmsg_end(skb, hdr);
- if (incomplete)
- goto start_again;
-
-send_done:
- nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq,
- NLMSG_DONE, 0, flags | NLM_F_MULTI);
- if (!nlh) {
- err = devlink_nl_msg_reply_and_new(&skb, info);
- if (err)
- return err;
- goto send_done;
- }
-
- return genlmsg_reply(skb, info);
-
-nla_put_failure:
- err = -EMSGSIZE;
-err_table_put:
- nlmsg_free(skb);
- return err;
-}
-
-static int devlink_nl_cmd_dpipe_table_get(struct sk_buff *skb,
- struct genl_info *info)
-{
- struct devlink *devlink = info->user_ptr[0];
- const char *table_name = NULL;
-
- if (info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME])
- table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]);
-
- return devlink_dpipe_tables_fill(info, DEVLINK_CMD_DPIPE_TABLE_GET, 0,
- &devlink->dpipe_table_list,
- table_name);
-}
-
-static int devlink_dpipe_value_put(struct sk_buff *skb,
- struct devlink_dpipe_value *value)
-{
- if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE,
- value->value_size, value->value))
- return -EMSGSIZE;
- if (value->mask)
- if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE_MASK,
- value->value_size, value->mask))
- return -EMSGSIZE;
- if (value->mapping_valid)
- if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_VALUE_MAPPING,
- value->mapping_value))
- return -EMSGSIZE;
- return 0;
-}
-
-static int devlink_dpipe_action_value_put(struct sk_buff *skb,
- struct devlink_dpipe_value *value)
-{
- if (!value->action)
- return -EINVAL;
- if (devlink_dpipe_action_put(skb, value->action))
- return -EMSGSIZE;
- if (devlink_dpipe_value_put(skb, value))
- return -EMSGSIZE;
- return 0;
-}
-
-static int devlink_dpipe_action_values_put(struct sk_buff *skb,
- struct devlink_dpipe_value *values,
- unsigned int values_count)
-{
- struct nlattr *action_attr;
- int i;
- int err;
-
- for (i = 0; i < values_count; i++) {
- action_attr = nla_nest_start_noflag(skb,
- DEVLINK_ATTR_DPIPE_ACTION_VALUE);
- if (!action_attr)
- return -EMSGSIZE;
- err = devlink_dpipe_action_value_put(skb, &values[i]);
- if (err)
- goto err_action_value_put;
- nla_nest_end(skb, action_attr);
- }
- return 0;
-
-err_action_value_put:
- nla_nest_cancel(skb, action_attr);
- return err;
-}
-
-static int devlink_dpipe_match_value_put(struct sk_buff *skb,
- struct devlink_dpipe_value *value)
-{
- if (!value->match)
- return -EINVAL;
- if (devlink_dpipe_match_put(skb, value->match))
- return -EMSGSIZE;
- if (devlink_dpipe_value_put(skb, value))
- return -EMSGSIZE;
- return 0;
-}
-
-static int devlink_dpipe_match_values_put(struct sk_buff *skb,
- struct devlink_dpipe_value *values,
- unsigned int values_count)
-{
- struct nlattr *match_attr;
- int i;
- int err;
-
- for (i = 0; i < values_count; i++) {
- match_attr = nla_nest_start_noflag(skb,
- DEVLINK_ATTR_DPIPE_MATCH_VALUE);
- if (!match_attr)
- return -EMSGSIZE;
- err = devlink_dpipe_match_value_put(skb, &values[i]);
- if (err)
- goto err_match_value_put;
- nla_nest_end(skb, match_attr);
- }
- return 0;
-
-err_match_value_put:
- nla_nest_cancel(skb, match_attr);
- return err;
-}
-
-static int devlink_dpipe_entry_put(struct sk_buff *skb,
- struct devlink_dpipe_entry *entry)
-{
- struct nlattr *entry_attr, *matches_attr, *actions_attr;
- int err;
-
- entry_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ENTRY);
- if (!entry_attr)
- return -EMSGSIZE;
-
- if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_INDEX, entry->index,
- DEVLINK_ATTR_PAD))
- goto nla_put_failure;
- if (entry->counter_valid)
- if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_COUNTER,
- entry->counter, DEVLINK_ATTR_PAD))
- goto nla_put_failure;
-
- matches_attr = nla_nest_start_noflag(skb,
- DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES);
- if (!matches_attr)
- goto nla_put_failure;
-
- err = devlink_dpipe_match_values_put(skb, entry->match_values,
- entry->match_values_count);
- if (err) {
- nla_nest_cancel(skb, matches_attr);
- goto err_match_values_put;
- }
- nla_nest_end(skb, matches_attr);
-
- actions_attr = nla_nest_start_noflag(skb,
- DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES);
- if (!actions_attr)
- goto nla_put_failure;
-
- err = devlink_dpipe_action_values_put(skb, entry->action_values,
- entry->action_values_count);
- if (err) {
- nla_nest_cancel(skb, actions_attr);
- goto err_action_values_put;
- }
- nla_nest_end(skb, actions_attr);
-
- nla_nest_end(skb, entry_attr);
- return 0;
-
-nla_put_failure:
- err = -EMSGSIZE;
-err_match_values_put:
-err_action_values_put:
- nla_nest_cancel(skb, entry_attr);
- return err;
-}
-
-static struct devlink_dpipe_table *
-devlink_dpipe_table_find(struct list_head *dpipe_tables,
- const char *table_name, struct devlink *devlink)
-{
- struct devlink_dpipe_table *table;
- list_for_each_entry_rcu(table, dpipe_tables, list,
- lockdep_is_held(&devlink->lock)) {
- if (!strcmp(table->name, table_name))
- return table;
- }
- return NULL;
-}
-
-int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx)
-{
- struct devlink *devlink;
- int err;
-
- err = devlink_nl_msg_reply_and_new(&dump_ctx->skb,
- dump_ctx->info);
- if (err)
- return err;
-
- dump_ctx->hdr = genlmsg_put(dump_ctx->skb,
- dump_ctx->info->snd_portid,
- dump_ctx->info->snd_seq,
- &devlink_nl_family, NLM_F_MULTI,
- dump_ctx->cmd);
- if (!dump_ctx->hdr)
- goto nla_put_failure;
-
- devlink = dump_ctx->info->user_ptr[0];
- if (devlink_nl_put_handle(dump_ctx->skb, devlink))
- goto nla_put_failure;
- dump_ctx->nest = nla_nest_start_noflag(dump_ctx->skb,
- DEVLINK_ATTR_DPIPE_ENTRIES);
- if (!dump_ctx->nest)
- goto nla_put_failure;
- return 0;
-
-nla_put_failure:
- nlmsg_free(dump_ctx->skb);
- return -EMSGSIZE;
-}
-EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_prepare);
-
-int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx,
- struct devlink_dpipe_entry *entry)
-{
- return devlink_dpipe_entry_put(dump_ctx->skb, entry);
-}
-EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_append);
-
-int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx)
-{
- nla_nest_end(dump_ctx->skb, dump_ctx->nest);
- genlmsg_end(dump_ctx->skb, dump_ctx->hdr);
- return 0;
-}
-EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_close);
-
-void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry)
-
-{
- unsigned int value_count, value_index;
- struct devlink_dpipe_value *value;
-
- value = entry->action_values;
- value_count = entry->action_values_count;
- for (value_index = 0; value_index < value_count; value_index++) {
- kfree(value[value_index].value);
- kfree(value[value_index].mask);
- }
-
- value = entry->match_values;
- value_count = entry->match_values_count;
- for (value_index = 0; value_index < value_count; value_index++) {
- kfree(value[value_index].value);
- kfree(value[value_index].mask);
- }
-}
-EXPORT_SYMBOL_GPL(devlink_dpipe_entry_clear);
-
-static int devlink_dpipe_entries_fill(struct genl_info *info,
- enum devlink_command cmd, int flags,
- struct devlink_dpipe_table *table)
-{
- struct devlink_dpipe_dump_ctx dump_ctx;
- struct nlmsghdr *nlh;
- int err;
-
- dump_ctx.skb = NULL;
- dump_ctx.cmd = cmd;
- dump_ctx.info = info;
-
- err = table->table_ops->entries_dump(table->priv,
- table->counters_enabled,
- &dump_ctx);
- if (err)
- return err;
-
-send_done:
- nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq,
- NLMSG_DONE, 0, flags | NLM_F_MULTI);
- if (!nlh) {
- err = devlink_nl_msg_reply_and_new(&dump_ctx.skb, info);
- if (err)
- return err;
- goto send_done;
- }
- return genlmsg_reply(dump_ctx.skb, info);
-}
-
-static int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb,
- struct genl_info *info)
-{
- struct devlink *devlink = info->user_ptr[0];
- struct devlink_dpipe_table *table;
- const char *table_name;
-
- if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_DPIPE_TABLE_NAME))
- return -EINVAL;
-
- table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]);
- table = devlink_dpipe_table_find(&devlink->dpipe_table_list,
- table_name, devlink);
- if (!table)
- return -EINVAL;
-
- if (!table->table_ops->entries_dump)
- return -EINVAL;
-
- return devlink_dpipe_entries_fill(info, DEVLINK_CMD_DPIPE_ENTRIES_GET,
- 0, table);
-}
-
-static int devlink_dpipe_fields_put(struct sk_buff *skb,
- const struct devlink_dpipe_header *header)
-{
- struct devlink_dpipe_field *field;
- struct nlattr *field_attr;
- int i;
-
- for (i = 0; i < header->fields_count; i++) {
- field = &header->fields[i];
- field_attr = nla_nest_start_noflag(skb,
- DEVLINK_ATTR_DPIPE_FIELD);
- if (!field_attr)
- return -EMSGSIZE;
- if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_FIELD_NAME, field->name) ||
- nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) ||
- nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH, field->bitwidth) ||
- nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE, field->mapping_type))
- goto nla_put_failure;
- nla_nest_end(skb, field_attr);
- }
- return 0;
-
-nla_put_failure:
- nla_nest_cancel(skb, field_attr);
- return -EMSGSIZE;
-}
-
-static int devlink_dpipe_header_put(struct sk_buff *skb,
- struct devlink_dpipe_header *header)
-{
- struct nlattr *fields_attr, *header_attr;
- int err;
-
- header_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADER);
- if (!header_attr)
- return -EMSGSIZE;
-
- if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_HEADER_NAME, header->name) ||
- nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) ||
- nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global))
- goto nla_put_failure;
-
- fields_attr = nla_nest_start_noflag(skb,
- DEVLINK_ATTR_DPIPE_HEADER_FIELDS);
- if (!fields_attr)
- goto nla_put_failure;
-
- err = devlink_dpipe_fields_put(skb, header);
- if (err) {
- nla_nest_cancel(skb, fields_attr);
- goto nla_put_failure;
- }
- nla_nest_end(skb, fields_attr);
- nla_nest_end(skb, header_attr);
- return 0;
-
-nla_put_failure:
- err = -EMSGSIZE;
- nla_nest_cancel(skb, header_attr);
- return err;
-}
-
-static int devlink_dpipe_headers_fill(struct genl_info *info,
- enum devlink_command cmd, int flags,
- struct devlink_dpipe_headers *
- dpipe_headers)
-{
- struct devlink *devlink = info->user_ptr[0];
- struct nlattr *headers_attr;
- struct sk_buff *skb = NULL;
- struct nlmsghdr *nlh;
- void *hdr;
- int i, j;
- int err;
-
- i = 0;
-start_again:
- err = devlink_nl_msg_reply_and_new(&skb, info);
- if (err)
- return err;
-
- hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq,
- &devlink_nl_family, NLM_F_MULTI, cmd);
- if (!hdr) {
- nlmsg_free(skb);
- return -EMSGSIZE;
- }
-
- if (devlink_nl_put_handle(skb, devlink))
- goto nla_put_failure;
- headers_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADERS);
- if (!headers_attr)
- goto nla_put_failure;
-
- j = 0;
- for (; i < dpipe_headers->headers_count; i++) {
- err = devlink_dpipe_header_put(skb, dpipe_headers->headers[i]);
- if (err) {
- if (!j)
- goto err_table_put;
- break;
- }
- j++;
- }
- nla_nest_end(skb, headers_attr);
- genlmsg_end(skb, hdr);
- if (i != dpipe_headers->headers_count)
- goto start_again;
-
-send_done:
- nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq,
- NLMSG_DONE, 0, flags | NLM_F_MULTI);
- if (!nlh) {
- err = devlink_nl_msg_reply_and_new(&skb, info);
- if (err)
- return err;
- goto send_done;
- }
- return genlmsg_reply(skb, info);
-
-nla_put_failure:
- err = -EMSGSIZE;
-err_table_put:
- nlmsg_free(skb);
- return err;
-}
-
-static int devlink_nl_cmd_dpipe_headers_get(struct sk_buff *skb,
- struct genl_info *info)
-{
- struct devlink *devlink = info->user_ptr[0];
-
- if (!devlink->dpipe_headers)
- return -EOPNOTSUPP;
- return devlink_dpipe_headers_fill(info, DEVLINK_CMD_DPIPE_HEADERS_GET,
- 0, devlink->dpipe_headers);
-}
-
-static int devlink_dpipe_table_counters_set(struct devlink *devlink,
- const char *table_name,
- bool enable)
-{
- struct devlink_dpipe_table *table;
-
- table = devlink_dpipe_table_find(&devlink->dpipe_table_list,
- table_name, devlink);
- if (!table)
- return -EINVAL;
-
- if (table->counter_control_extern)
- return -EOPNOTSUPP;
-
- if (!(table->counters_enabled ^ enable))
- return 0;
-
- table->counters_enabled = enable;
- if (table->table_ops->counters_set_update)
- table->table_ops->counters_set_update(table->priv, enable);
- return 0;
-}
-
-static int devlink_nl_cmd_dpipe_table_counters_set(struct sk_buff *skb,
- struct genl_info *info)
-{
- struct devlink *devlink = info->user_ptr[0];
- const char *table_name;
- bool counters_enable;
-
- if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_DPIPE_TABLE_NAME) ||
- GENL_REQ_ATTR_CHECK(info,
- DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED))
- return -EINVAL;
-
- table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]);
- counters_enable = !!nla_get_u8(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]);
-
- return devlink_dpipe_table_counters_set(devlink, table_name,
- counters_enable);
-}
-
static struct devlink_resource *
devlink_resource_find(struct devlink *devlink,
struct devlink_resource *resource, u64 resource_id)
EXPORT_SYMBOL_GPL(devlink_linecard_nested_dl_set);
/**
- * devl_dpipe_headers_register - register dpipe headers
- *
- * @devlink: devlink
- * @dpipe_headers: dpipe header array
- *
- * Register the headers supported by hardware.
- */
-void devl_dpipe_headers_register(struct devlink *devlink,
- struct devlink_dpipe_headers *dpipe_headers)
-{
- lockdep_assert_held(&devlink->lock);
-
- devlink->dpipe_headers = dpipe_headers;
-}
-EXPORT_SYMBOL_GPL(devl_dpipe_headers_register);
-
-/**
- * devl_dpipe_headers_unregister - unregister dpipe headers
- *
- * @devlink: devlink
- *
- * Unregister the headers supported by hardware.
- */
-void devl_dpipe_headers_unregister(struct devlink *devlink)
-{
- lockdep_assert_held(&devlink->lock);
-
- devlink->dpipe_headers = NULL;
-}
-EXPORT_SYMBOL_GPL(devl_dpipe_headers_unregister);
-
-/**
- * devlink_dpipe_table_counter_enabled - check if counter allocation
- * required
- * @devlink: devlink
- * @table_name: tables name
- *
- * Used by driver to check if counter allocation is required.
- * After counter allocation is turned on the table entries
- * are updated to include counter statistics.
- *
- * After that point on the driver must respect the counter
- * state so that each entry added to the table is added
- * with a counter.
- */
-bool devlink_dpipe_table_counter_enabled(struct devlink *devlink,
- const char *table_name)
-{
- struct devlink_dpipe_table *table;
- bool enabled;
-
- rcu_read_lock();
- table = devlink_dpipe_table_find(&devlink->dpipe_table_list,
- table_name, devlink);
- enabled = false;
- if (table)
- enabled = table->counters_enabled;
- rcu_read_unlock();
- return enabled;
-}
-EXPORT_SYMBOL_GPL(devlink_dpipe_table_counter_enabled);
-
-/**
- * devl_dpipe_table_register - register dpipe table
- *
- * @devlink: devlink
- * @table_name: table name
- * @table_ops: table ops
- * @priv: priv
- * @counter_control_extern: external control for counters
- */
-int devl_dpipe_table_register(struct devlink *devlink,
- const char *table_name,
- struct devlink_dpipe_table_ops *table_ops,
- void *priv, bool counter_control_extern)
-{
- struct devlink_dpipe_table *table;
-
- lockdep_assert_held(&devlink->lock);
-
- if (WARN_ON(!table_ops->size_get))
- return -EINVAL;
-
- if (devlink_dpipe_table_find(&devlink->dpipe_table_list, table_name,
- devlink))
- return -EEXIST;
-
- table = kzalloc(sizeof(*table), GFP_KERNEL);
- if (!table)
- return -ENOMEM;
-
- table->name = table_name;
- table->table_ops = table_ops;
- table->priv = priv;
- table->counter_control_extern = counter_control_extern;
-
- list_add_tail_rcu(&table->list, &devlink->dpipe_table_list);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(devl_dpipe_table_register);
-
-/**
- * devl_dpipe_table_unregister - unregister dpipe table
- *
- * @devlink: devlink
- * @table_name: table name
- */
-void devl_dpipe_table_unregister(struct devlink *devlink,
- const char *table_name)
-{
- struct devlink_dpipe_table *table;
-
- lockdep_assert_held(&devlink->lock);
-
- table = devlink_dpipe_table_find(&devlink->dpipe_table_list,
- table_name, devlink);
- if (!table)
- return;
- list_del_rcu(&table->list);
- kfree_rcu(table, rcu);
-}
-EXPORT_SYMBOL_GPL(devl_dpipe_table_unregister);
-
-/**
* devl_resource_register - devlink resource register
*
* @devlink: devlink
EXPORT_SYMBOL_GPL(devl_resource_size_get);
/**
- * devl_dpipe_table_resource_set - set the resource id
- *
- * @devlink: devlink
- * @table_name: table name
- * @resource_id: resource id
- * @resource_units: number of resource's units consumed per table's entry
- */
-int devl_dpipe_table_resource_set(struct devlink *devlink,
- const char *table_name, u64 resource_id,
- u64 resource_units)
-{
- struct devlink_dpipe_table *table;
-
- table = devlink_dpipe_table_find(&devlink->dpipe_table_list,
- table_name, devlink);
- if (!table)
- return -EINVAL;
-
- table->resource_id = resource_id;
- table->resource_units = resource_units;
- table->resource_valid = true;
- return 0;
-}
-EXPORT_SYMBOL_GPL(devl_dpipe_table_resource_set);
-
-/**
* devl_resource_occ_get_register - register occupancy getter
*
* @devlink: devlink
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