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mlxsw: core: Add support for devlink info command 

Expose the following ASIC information via devlink info command:
  - Driver name
  - Hardware revision
  - Firmware PSID
  - Running firmware version

Standard output example:
  $ devlink dev info pci/0000:03:00.0
  pci/0000:03:00.0:
    driver mlxsw_spectrum
    versions:
        fixed:
          hw.revision A0
          fw.psid MT_2750110033
        running:
          fw.version 13.1910.622

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shalom Toledo 2019-04-08 06:59:35 +00:00 committed by David S. Miller
parent 8d77d4bfb0
commit a9c8336f65
1 changed files with 41 additions and 0 deletions
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41
drivers/net/ethernet/mellanox/mlxsw/core.c
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@ -934,6 +934,46 @@ mlxsw_devlink_sb_occ_tc_port_bind_get(struct devlink_port *devlink_port,
pool_type, p_cur, p_max);
}
static int
mlxsw_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,
struct netlink_ext_ack *extack)
{
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
char fw_info_psid[MLXSW_REG_MGIR_FW_INFO_PSID_SIZE];
u32 hw_rev, fw_major, fw_minor, fw_sub_minor;
char mgir_pl[MLXSW_REG_MGIR_LEN];
char buf[32];
int err;
err = devlink_info_driver_name_put(req,
mlxsw_core->bus_info->device_kind);
if (err)
return err;
mlxsw_reg_mgir_pack(mgir_pl);
err = mlxsw_reg_query(mlxsw_core, MLXSW_REG(mgir), mgir_pl);
if (err)
return err;
mlxsw_reg_mgir_unpack(mgir_pl, &hw_rev, fw_info_psid, &fw_major,
&fw_minor, &fw_sub_minor);
sprintf(buf, "%X", hw_rev);
err = devlink_info_version_fixed_put(req, "hw.revision", buf);
if (err)
return err;
err = devlink_info_version_fixed_put(req, "fw.psid", fw_info_psid);
if (err)
return err;
sprintf(buf, "%d.%d.%d", fw_major, fw_minor, fw_sub_minor);
err = devlink_info_version_running_put(req, "fw.version", buf);
if (err)
return err;
return 0;
}
static int mlxsw_devlink_core_bus_device_reload(struct devlink *devlink,
struct netlink_ext_ack *extack)
{
@ -968,6 +1008,7 @@ static const struct devlink_ops mlxsw_devlink_ops = {
.sb_occ_max_clear = mlxsw_devlink_sb_occ_max_clear,
.sb_occ_port_pool_get = mlxsw_devlink_sb_occ_port_pool_get,
.sb_occ_tc_port_bind_get = mlxsw_devlink_sb_occ_tc_port_bind_get,
.info_get = mlxsw_devlink_info_get,
};
static int