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authorVadim Pasternak <vadimp@mellanox.com>2019-05-18 18:58:28 +0300
committerDavid S. Miller <davem@davemloft.net>2019-05-18 13:13:40 -0700
commitc52ecff7e6439ca8c9b03282e8869a005aa94831 (patch)
treecffa70b715b8591ee1c7b6b362ea942779839f0d /drivers/net/ethernet/mellanox/mlxsw/core.c
parentvsock/virtio: Initialize core virtio vsock before registering the driver (diff)
downloadlinux-dev-c52ecff7e6439ca8c9b03282e8869a005aa94831.tar.xz
linux-dev-c52ecff7e6439ca8c9b03282e8869a005aa94831.zip
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.c6
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;