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mlxsw: core_linecards: Expose HW revision and INI version

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Implement info_get() to expose HW revision of a linecard and loaded INI
version.

Example:

$ devlink dev info auxiliary/mlxsw_core.lc.0
auxiliary/mlxsw_core.lc.0:
  versions:
      fixed:
        hw.revision 0
      running:
        ini.version 4

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jiri Pirko 2022-07-25 10:29:18 +02:00 committed by Jakub Kicinski
parent bd02fd76d1
commit 5ba325fec5
4 changed files with 61 additions and 0 deletions
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18
Documentation/networking/devlink/mlxsw.rst
View File

@ -58,6 +58,24 @@ The ``mlxsw`` driver reports the following versions
- running
- Three digit firmware version
Line card auxiliary device info versions
========================================
The ``mlxsw`` driver reports the following versions for line card auxiliary device
.. list-table:: devlink info versions implemented
:widths: 5 5 90
* - Name
- Type
- Description
* - ``hw.revision``
- fixed
- The hardware revision for this line card
* - ``ini.version``
- running
- Version of line card INI loaded
Driver-specific Traps
=====================

4
drivers/net/ethernet/mellanox/mlxsw/core.h
View File

@ -601,6 +601,10 @@ mlxsw_linecard_get(struct mlxsw_linecards *linecards, u8 slot_index)
return &linecards->linecards[slot_index - 1];
}
int mlxsw_linecard_devlink_info_get(struct mlxsw_linecard *linecard,
struct devlink_info_req *req,
struct netlink_ext_ack *extack);
int mlxsw_linecards_init(struct mlxsw_core *mlxsw_core,
const struct mlxsw_bus_info *bus_info);
void mlxsw_linecards_fini(struct mlxsw_core *mlxsw_core);

11
drivers/net/ethernet/mellanox/mlxsw/core_linecard_dev.c
View File

@ -98,7 +98,18 @@ void mlxsw_linecard_bdev_del(struct mlxsw_linecard *linecard)
linecard->bdev = NULL;
}
static int mlxsw_linecard_dev_devlink_info_get(struct devlink *devlink,
struct devlink_info_req *req,
struct netlink_ext_ack *extack)
{
struct mlxsw_linecard_dev *linecard_dev = devlink_priv(devlink);
struct mlxsw_linecard *linecard = linecard_dev->linecard;
return mlxsw_linecard_devlink_info_get(linecard, req, extack);
}
static const struct devlink_ops mlxsw_linecard_dev_devlink_ops = {
.info_get = mlxsw_linecard_dev_devlink_info_get,
};
static int mlxsw_linecard_bdev_probe(struct auxiliary_device *adev,

28
drivers/net/ethernet/mellanox/mlxsw/core_linecards.c
View File

@ -226,6 +226,34 @@ void mlxsw_linecards_event_ops_unregister(struct mlxsw_core *mlxsw_core,
}
EXPORT_SYMBOL(mlxsw_linecards_event_ops_unregister);
int mlxsw_linecard_devlink_info_get(struct mlxsw_linecard *linecard,
struct devlink_info_req *req,
struct netlink_ext_ack *extack)
{
char buf[32];
int err;
mutex_lock(&linecard->lock);
if (WARN_ON(!linecard->provisioned)) {
err = -EOPNOTSUPP;
goto unlock;
}
sprintf(buf, "%d", linecard->hw_revision);
err = devlink_info_version_fixed_put(req, "hw.revision", buf);
if (err)
goto unlock;
sprintf(buf, "%d", linecard->ini_version);
err = devlink_info_version_running_put(req, "ini.version", buf);
if (err)
goto unlock;
unlock:
mutex_unlock(&linecard->lock);
return err;
}
static int
mlxsw_linecard_provision_set(struct mlxsw_linecard *linecard, u8 card_type,
u16 hw_revision, u16 ini_version)