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Diffstat (limited to 'include/net/devlink.h')
-rw-r--r--include/net/devlink.h199
1 files changed, 196 insertions, 3 deletions
diff --git a/include/net/devlink.h b/include/net/devlink.h
index bc36f942a7d5..23e4b65ec9df 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -14,6 +14,7 @@
#include <linux/netdevice.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
+#include <linux/refcount.h>
#include <net/net_namespace.h>
#include <uapi/linux/devlink.h>
@@ -31,10 +32,13 @@ struct devlink {
struct list_head reporter_list;
struct mutex reporters_lock; /* protects reporter_list */
struct devlink_dpipe_headers *dpipe_headers;
+ struct list_head trap_list;
+ struct list_head trap_group_list;
const struct devlink_ops *ops;
struct device *dev;
possible_net_t _net;
struct mutex lock;
+ bool reload_failed;
char priv[0] __aligned(NETDEV_ALIGN);
};
@@ -72,7 +76,7 @@ struct devlink_port {
struct list_head list;
struct list_head param_list;
struct devlink *devlink;
- unsigned index;
+ unsigned int index;
bool registered;
spinlock_t type_lock; /* Protects type and type_dev
* pointer consistency.
@@ -395,6 +399,7 @@ enum devlink_param_generic_id {
DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY,
+ DEVLINK_PARAM_GENERIC_ID_RESET_DEV_ON_DRV_PROBE,
/* add new param generic ids above here*/
__DEVLINK_PARAM_GENERIC_ID_MAX,
@@ -425,6 +430,10 @@ enum devlink_param_generic_id {
#define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME "fw_load_policy"
#define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE DEVLINK_PARAM_TYPE_U8
+#define DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_NAME \
+ "reset_dev_on_drv_probe"
+#define DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_TYPE DEVLINK_PARAM_TYPE_U8
+
#define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate) \
{ \
.id = DEVLINK_PARAM_GENERIC_ID_##_id, \
@@ -455,6 +464,13 @@ enum devlink_param_generic_id {
/* Maker of the board */
#define DEVLINK_INFO_VERSION_GENERIC_BOARD_MANUFACTURE "board.manufacture"
+/* Part number, identifier of asic design */
+#define DEVLINK_INFO_VERSION_GENERIC_ASIC_ID "asic.id"
+/* Revision of asic design */
+#define DEVLINK_INFO_VERSION_GENERIC_ASIC_REV "asic.rev"
+
+/* Overall FW version */
+#define DEVLINK_INFO_VERSION_GENERIC_FW "fw"
/* Control processor FW version */
#define DEVLINK_INFO_VERSION_GENERIC_FW_MGMT "fw.mgmt"
/* Data path microcode controlling high-speed packet processing */
@@ -497,8 +513,140 @@ struct devlink_health_reporter_ops {
struct devlink_fmsg *fmsg);
};
+/**
+ * struct devlink_trap_group - Immutable packet trap group attributes.
+ * @name: Trap group name.
+ * @id: Trap group identifier.
+ * @generic: Whether the trap group is generic or not.
+ *
+ * Describes immutable attributes of packet trap groups that drivers register
+ * with devlink.
+ */
+struct devlink_trap_group {
+ const char *name;
+ u16 id;
+ bool generic;
+};
+
+#define DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT BIT(0)
+
+/**
+ * struct devlink_trap - Immutable packet trap attributes.
+ * @type: Trap type.
+ * @init_action: Initial trap action.
+ * @generic: Whether the trap is generic or not.
+ * @id: Trap identifier.
+ * @name: Trap name.
+ * @group: Immutable packet trap group attributes.
+ * @metadata_cap: Metadata types that can be provided by the trap.
+ *
+ * Describes immutable attributes of packet traps that drivers register with
+ * devlink.
+ */
+struct devlink_trap {
+ enum devlink_trap_type type;
+ enum devlink_trap_action init_action;
+ bool generic;
+ u16 id;
+ const char *name;
+ struct devlink_trap_group group;
+ u32 metadata_cap;
+};
+
+/* All traps must be documented in
+ * Documentation/networking/devlink-trap.rst
+ */
+enum devlink_trap_generic_id {
+ DEVLINK_TRAP_GENERIC_ID_SMAC_MC,
+ DEVLINK_TRAP_GENERIC_ID_VLAN_TAG_MISMATCH,
+ DEVLINK_TRAP_GENERIC_ID_INGRESS_VLAN_FILTER,
+ DEVLINK_TRAP_GENERIC_ID_INGRESS_STP_FILTER,
+ DEVLINK_TRAP_GENERIC_ID_EMPTY_TX_LIST,
+ DEVLINK_TRAP_GENERIC_ID_PORT_LOOPBACK_FILTER,
+ DEVLINK_TRAP_GENERIC_ID_BLACKHOLE_ROUTE,
+ DEVLINK_TRAP_GENERIC_ID_TTL_ERROR,
+ DEVLINK_TRAP_GENERIC_ID_TAIL_DROP,
+
+ /* Add new generic trap IDs above */
+ __DEVLINK_TRAP_GENERIC_ID_MAX,
+ DEVLINK_TRAP_GENERIC_ID_MAX = __DEVLINK_TRAP_GENERIC_ID_MAX - 1,
+};
+
+/* All trap groups must be documented in
+ * Documentation/networking/devlink-trap.rst
+ */
+enum devlink_trap_group_generic_id {
+ DEVLINK_TRAP_GROUP_GENERIC_ID_L2_DROPS,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_L3_DROPS,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_BUFFER_DROPS,
+
+ /* Add new generic trap group IDs above */
+ __DEVLINK_TRAP_GROUP_GENERIC_ID_MAX,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_MAX =
+ __DEVLINK_TRAP_GROUP_GENERIC_ID_MAX - 1,
+};
+
+#define DEVLINK_TRAP_GENERIC_NAME_SMAC_MC \
+ "source_mac_is_multicast"
+#define DEVLINK_TRAP_GENERIC_NAME_VLAN_TAG_MISMATCH \
+ "vlan_tag_mismatch"
+#define DEVLINK_TRAP_GENERIC_NAME_INGRESS_VLAN_FILTER \
+ "ingress_vlan_filter"
+#define DEVLINK_TRAP_GENERIC_NAME_INGRESS_STP_FILTER \
+ "ingress_spanning_tree_filter"
+#define DEVLINK_TRAP_GENERIC_NAME_EMPTY_TX_LIST \
+ "port_list_is_empty"
+#define DEVLINK_TRAP_GENERIC_NAME_PORT_LOOPBACK_FILTER \
+ "port_loopback_filter"
+#define DEVLINK_TRAP_GENERIC_NAME_BLACKHOLE_ROUTE \
+ "blackhole_route"
+#define DEVLINK_TRAP_GENERIC_NAME_TTL_ERROR \
+ "ttl_value_is_too_small"
+#define DEVLINK_TRAP_GENERIC_NAME_TAIL_DROP \
+ "tail_drop"
+
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \
+ "l2_drops"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_L3_DROPS \
+ "l3_drops"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_BUFFER_DROPS \
+ "buffer_drops"
+
+#define DEVLINK_TRAP_GENERIC(_type, _init_action, _id, _group, _metadata_cap) \
+ { \
+ .type = DEVLINK_TRAP_TYPE_##_type, \
+ .init_action = DEVLINK_TRAP_ACTION_##_init_action, \
+ .generic = true, \
+ .id = DEVLINK_TRAP_GENERIC_ID_##_id, \
+ .name = DEVLINK_TRAP_GENERIC_NAME_##_id, \
+ .group = _group, \
+ .metadata_cap = _metadata_cap, \
+ }
+
+#define DEVLINK_TRAP_DRIVER(_type, _init_action, _id, _name, _group, \
+ _metadata_cap) \
+ { \
+ .type = DEVLINK_TRAP_TYPE_##_type, \
+ .init_action = DEVLINK_TRAP_ACTION_##_init_action, \
+ .generic = false, \
+ .id = _id, \
+ .name = _name, \
+ .group = _group, \
+ .metadata_cap = _metadata_cap, \
+ }
+
+#define DEVLINK_TRAP_GROUP_GENERIC(_id) \
+ { \
+ .name = DEVLINK_TRAP_GROUP_GENERIC_NAME_##_id, \
+ .id = DEVLINK_TRAP_GROUP_GENERIC_ID_##_id, \
+ .generic = true, \
+ }
+
struct devlink_ops {
- int (*reload)(struct devlink *devlink, struct netlink_ext_ack *extack);
+ int (*reload_down)(struct devlink *devlink,
+ struct netlink_ext_ack *extack);
+ int (*reload_up)(struct devlink *devlink,
+ struct netlink_ext_ack *extack);
int (*port_type_set)(struct devlink_port *devlink_port,
enum devlink_port_type port_type);
int (*port_split)(struct devlink *devlink, unsigned int port_index,
@@ -558,6 +706,38 @@ struct devlink_ops {
int (*flash_update)(struct devlink *devlink, const char *file_name,
const char *component,
struct netlink_ext_ack *extack);
+ /**
+ * @trap_init: Trap initialization function.
+ *
+ * Should be used by device drivers to initialize the trap in the
+ * underlying device. Drivers should also store the provided trap
+ * context, so that they could efficiently pass it to
+ * devlink_trap_report() when the trap is triggered.
+ */
+ int (*trap_init)(struct devlink *devlink,
+ const struct devlink_trap *trap, void *trap_ctx);
+ /**
+ * @trap_fini: Trap de-initialization function.
+ *
+ * Should be used by device drivers to de-initialize the trap in the
+ * underlying device.
+ */
+ void (*trap_fini)(struct devlink *devlink,
+ const struct devlink_trap *trap, void *trap_ctx);
+ /**
+ * @trap_action_set: Trap action set function.
+ */
+ int (*trap_action_set)(struct devlink *devlink,
+ const struct devlink_trap *trap,
+ enum devlink_trap_action action);
+ /**
+ * @trap_group_init: Trap group initialization function.
+ *
+ * Should be used by device drivers to initialize the trap group in the
+ * underlying device.
+ */
+ int (*trap_group_init)(struct devlink *devlink,
+ const struct devlink_trap_group *group);
};
static inline void *devlink_priv(struct devlink *devlink)
@@ -702,7 +882,7 @@ struct devlink_region *devlink_region_create(struct devlink *devlink,
u64 region_size);
void devlink_region_destroy(struct devlink_region *region);
u32 devlink_region_shapshot_id_get(struct devlink *devlink);
-int devlink_region_snapshot_create(struct devlink_region *region, u64 data_len,
+int devlink_region_snapshot_create(struct devlink_region *region,
u8 *data, u32 snapshot_id,
devlink_snapshot_data_dest_t *data_destructor);
int devlink_info_serial_number_put(struct devlink_info_req *req,
@@ -766,6 +946,8 @@ void
devlink_health_reporter_state_update(struct devlink_health_reporter *reporter,
enum devlink_health_reporter_state state);
+bool devlink_is_reload_failed(const struct devlink *devlink);
+
void devlink_flash_update_begin_notify(struct devlink *devlink);
void devlink_flash_update_end_notify(struct devlink *devlink);
void devlink_flash_update_status_notify(struct devlink *devlink,
@@ -774,6 +956,17 @@ void devlink_flash_update_status_notify(struct devlink *devlink,
unsigned long done,
unsigned long total);
+int devlink_traps_register(struct devlink *devlink,
+ const struct devlink_trap *traps,
+ size_t traps_count, void *priv);
+void devlink_traps_unregister(struct devlink *devlink,
+ const struct devlink_trap *traps,
+ size_t traps_count);
+void devlink_trap_report(struct devlink *devlink,
+ struct sk_buff *skb, void *trap_ctx,
+ struct devlink_port *in_devlink_port);
+void *devlink_trap_ctx_priv(void *trap_ctx);
+
#if IS_ENABLED(CONFIG_NET_DEVLINK)
void devlink_compat_running_version(struct net_device *dev,