diff options
| author | Jiri Pirko <jiri@nvidia.com> | 2022-04-18 09:42:27 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-04-18 11:00:18 +0100 |
| commit | fc9f50d5b366cd9f35bdee22fe3f8d77833cb1d8 (patch) | |
| tree | 4df5da71305573153fddd8e61dba55e3ab0a955f | |
| parent | fcdc8ce23a309c26a67fc613a741d9b21a248311 (diff) | |
| download | net-next-fc9f50d5b366cd9f35bdee22fe3f8d77833cb1d8.tar.gz | |
devlink: implement line card active state
Allow driver to mark a line card as active. Expose this state to the
userspace over devlink netlink interface with proper notifications.
'active' state means that line card was plugged in after
being provisioned.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | Documentation/networking/devlink/devlink-linecard.rst | 11 | ||||
| -rw-r--r-- | include/net/devlink.h | 2 | ||||
| -rw-r--r-- | include/uapi/linux/devlink.h | 1 | ||||
| -rw-r--r-- | net/core/devlink.c | 41 |
4 files changed, 50 insertions, 5 deletions
diff --git a/Documentation/networking/devlink/devlink-linecard.rst b/Documentation/networking/devlink/devlink-linecard.rst index 63ccd17f40acfe..6c0b8928bc130c 100644 --- a/Documentation/networking/devlink/devlink-linecard.rst +++ b/Documentation/networking/devlink/devlink-linecard.rst @@ -66,6 +66,7 @@ The ``devlink-linecard`` mechanism supports the following line card states: with a line card type. * ``provisioning_failed``: Provisioning was not successful. * ``provisioned``: Line card slot is provisioned with a type. + * ``active``: Line card is powered-up and active. The following diagram provides a general overview of ``devlink-linecard`` state transitions:: @@ -85,11 +86,11 @@ state transitions:: | | | +-----------------------------+ | | | - | +------------v------------+ +------------v------------+ - | | | | | - +----- provisioning_failed | | provisioned | - | | | | | - | +------------^------------+ +------------|------------+ + | +------------v------------+ +------------v------------+ +-------------------------+ + | | | | ----> | + +----- provisioning_failed | | provisioned | | active | + | | | | <---- | + | +------------^------------+ +------------|------------+ +-------------------------+ | | | | | | | | +------------v------------+ diff --git a/include/net/devlink.h b/include/net/devlink.h index 3e49d4ff498cff..d8061a11fee6a1 100644 --- a/include/net/devlink.h +++ b/include/net/devlink.h @@ -1579,6 +1579,8 @@ void devlink_linecard_provision_set(struct devlink_linecard *linecard, const char *type); void devlink_linecard_provision_clear(struct devlink_linecard *linecard); void devlink_linecard_provision_fail(struct devlink_linecard *linecard); +void devlink_linecard_activate(struct devlink_linecard *linecard); +void devlink_linecard_deactivate(struct devlink_linecard *linecard); int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, u32 size, u16 ingress_pools_count, u16 egress_pools_count, u16 ingress_tc_count, diff --git a/include/uapi/linux/devlink.h b/include/uapi/linux/devlink.h index de91e4a0d4768c..b3d40a5d72ff7c 100644 --- a/include/uapi/linux/devlink.h +++ b/include/uapi/linux/devlink.h @@ -350,6 +350,7 @@ enum devlink_linecard_state { DEVLINK_LINECARD_STATE_PROVISIONING, DEVLINK_LINECARD_STATE_PROVISIONING_FAILED, DEVLINK_LINECARD_STATE_PROVISIONED, + DEVLINK_LINECARD_STATE_ACTIVE, __DEVLINK_LINECARD_STATE_MAX, DEVLINK_LINECARD_STATE_MAX = __DEVLINK_LINECARD_STATE_MAX - 1 diff --git a/net/core/devlink.c b/net/core/devlink.c index b7c3a82fbd4bc5..aec0a517282c6a 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -10331,6 +10331,47 @@ void devlink_linecard_provision_fail(struct devlink_linecard *linecard) } EXPORT_SYMBOL_GPL(devlink_linecard_provision_fail); +/** + * devlink_linecard_activate - Set linecard active + * + * @linecard: devlink linecard + */ +void devlink_linecard_activate(struct devlink_linecard *linecard) +{ + mutex_lock(&linecard->state_lock); + WARN_ON(linecard->state != DEVLINK_LINECARD_STATE_PROVISIONED); + linecard->state = DEVLINK_LINECARD_STATE_ACTIVE; + devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); + mutex_unlock(&linecard->state_lock); +} +EXPORT_SYMBOL_GPL(devlink_linecard_activate); + +/** + * devlink_linecard_deactivate - Set linecard inactive + * + * @linecard: devlink linecard + */ +void devlink_linecard_deactivate(struct devlink_linecard *linecard) +{ + mutex_lock(&linecard->state_lock); + switch (linecard->state) { + case DEVLINK_LINECARD_STATE_ACTIVE: + linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED; + devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); + break; + case DEVLINK_LINECARD_STATE_UNPROVISIONING: + /* Line card is being deactivated as part + * of unprovisioning flow. + */ + break; + default: + WARN_ON(1); + break; + } + mutex_unlock(&linecard->state_lock); +} +EXPORT_SYMBOL_GPL(devlink_linecard_deactivate); + int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, u32 size, u16 ingress_pools_count, u16 egress_pools_count, u16 ingress_tc_count, |