net/mlx4_core: Read HCA frequency and map internal clock

Read HCA frequency, read PCI clock bar and offset, map internal clock to
PCI bar.

Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index 252f4ba7f32c..0567f01938ed 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -87,7 +87,8 @@ enum {
         MLX4_HCR_SIZE           = 0x0001c,
         MLX4_CLR_INT_SIZE       = 0x00008,
         MLX4_SLAVE_COMM_BASE    = 0x0,
-        MLX4_COMM_PAGESIZE      = 0x1000
+        MLX4_COMM_PAGESIZE      = 0x1000,
+        MLX4_CLOCK_SIZE         = 0x00008
 };
 
 enum {
@@ -403,6 +404,7 @@ struct mlx4_fw {
         u64                     clr_int_base;
         u64                     catas_offset;
         u64                     comm_base;
+        u64                     clock_offset;
         struct mlx4_icm        *fw_icm;
         struct mlx4_icm        *aux_icm;
         u32                     catas_size;
@@ -410,6 +412,7 @@ struct mlx4_fw {
         u8                      clr_int_bar;
         u8                      catas_bar;
         u8                      comm_bar;
+        u8                      clock_bar;
 };
 
 struct mlx4_comm {
@@ -826,6 +829,7 @@ struct mlx4_priv {
         struct list_head        bf_list;
         struct mutex            bf_mutex;
         struct io_mapping       *bf_mapping;
+        void __iomem            *clock_mapping;
         int                     reserved_mtts;
         int                     fs_hash_mode;
         u8 virt2phys_pkey[MLX4_MFUNC_MAX][MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];