diff options
author | Vadim Pasternak <vadimp@mellanox.com> | 2019-05-18 18:58:28 +0300 |
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committer | David S. Miller <davem@davemloft.net> | 2019-05-18 13:13:40 -0700 |
commit | c52ecff7e6439ca8c9b03282e8869a005aa94831 (patch) | |
tree | cffa70b715b8591ee1c7b6b362ea942779839f0d /drivers/net/ethernet/mellanox/mlxsw/core.c | |
parent | ba95e5dfd36647622d8897a2a0470dde60e59ffd (diff) | |
download | linux-c52ecff7e6439ca8c9b03282e8869a005aa94831.tar.bz2 |
mlxsw: core: Prevent QSFP module initialization for old hardware
Old Mellanox silicons, like switchx-2, switch-ib do not support reading
QSFP modules temperature through MTMP register. Attempt to access this
register on systems equipped with the this kind of silicon will cause
initialization flow failure.
Test for hardware resource capability is added in order to distinct
between old and new silicon - old silicons do not have such capability.
Fixes: 6a79507cfe94 ("mlxsw: core: Extend thermal module with per QSFP module thermal zones")
Fixes: 5c42eaa07bd0 ("mlxsw: core: Extend hwmon interface with QSFP module temperature attributes")
Reported-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/core.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/core.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.c b/drivers/net/ethernet/mellanox/mlxsw/core.c index bcbe07ec22be..6ee6de7f0160 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/core.c +++ b/drivers/net/ethernet/mellanox/mlxsw/core.c @@ -122,6 +122,12 @@ void *mlxsw_core_driver_priv(struct mlxsw_core *mlxsw_core) } EXPORT_SYMBOL(mlxsw_core_driver_priv); +bool mlxsw_core_res_query_enabled(const struct mlxsw_core *mlxsw_core) +{ + return mlxsw_core->driver->res_query_enabled; +} +EXPORT_SYMBOL(mlxsw_core_res_query_enabled); + struct mlxsw_rx_listener_item { struct list_head list; struct mlxsw_rx_listener rxl; |