mlx4_core: Don't read reserved fields in mlx4_QUERY_ADAPTER()

The firmware QUERY_ADAPTER command does not return vendor_id,
device_id, and revision_id; eliminate these fields from the query.

Initialize the rev_id field of the mlx4 device via init_node_data (MAD
IFC query), as is done in the query_device verb implementation.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

4 files changed, 1 insertions, 10 deletions

diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index d8287d9db41e..d2f50b62fcb6 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -468,6 +468,7 @@ static int init_node_data(struct mlx4_ib_dev *dev)
         if (err)
                 goto out;
 
+        dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32));
         memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
 
 out:
diff --git a/drivers/net/mlx4/fw.c b/drivers/net/mlx4/fw.c
index 535a4461d88c..61dc4951d6b0 100644
--- a/drivers/net/mlx4/fw.c
+++ b/drivers/net/mlx4/fw.c
@@ -617,9 +617,6 @@ int mlx4_QUERY_ADAPTER(struct mlx4_dev *dev, struct mlx4_adapter *adapter)
         int err;
 
 #define QUERY_ADAPTER_OUT_SIZE             0x100
-#define QUERY_ADAPTER_VENDOR_ID_OFFSET     0x00
-#define QUERY_ADAPTER_DEVICE_ID_OFFSET     0x04
-#define QUERY_ADAPTER_REVISION_ID_OFFSET   0x08
 #define QUERY_ADAPTER_INTA_PIN_OFFSET      0x10
 #define QUERY_ADAPTER_VSD_OFFSET           0x20
 
@@ -633,9 +630,6 @@ int mlx4_QUERY_ADAPTER(struct mlx4_dev *dev, struct mlx4_adapter *adapter)
         if (err)
                 goto out;
 
-        MLX4_GET(adapter->vendor_id, outbox,   QUERY_ADAPTER_VENDOR_ID_OFFSET);
-        MLX4_GET(adapter->device_id, outbox,   QUERY_ADAPTER_DEVICE_ID_OFFSET);
-        MLX4_GET(adapter->revision_id, outbox, QUERY_ADAPTER_REVISION_ID_OFFSET);
         MLX4_GET(adapter->inta_pin, outbox,    QUERY_ADAPTER_INTA_PIN_OFFSET);
 
         get_board_id(outbox + QUERY_ADAPTER_VSD_OFFSET / 4,
diff --git a/drivers/net/mlx4/fw.h b/drivers/net/mlx4/fw.h
index 7e1dd9e25cfb..e16dec890413 100644
--- a/drivers/net/mlx4/fw.h
+++ b/drivers/net/mlx4/fw.h
@@ -99,9 +99,6 @@ struct mlx4_dev_cap {
 };
 
 struct mlx4_adapter {
-        u32  vendor_id;
-        u32  device_id;
-        u32  revision_id;
         char board_id[MLX4_BOARD_ID_LEN];
         u8   inta_pin;
 };
diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
index a028d8a012ff..859617d622b9 100644
--- a/drivers/net/mlx4/main.c
+++ b/drivers/net/mlx4/main.c
@@ -534,7 +534,6 @@ static int mlx4_init_hca(struct mlx4_dev *dev)
         }
 
         priv->eq_table.inta_pin = adapter.inta_pin;
-        dev->rev_id             = adapter.revision_id;
         memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id);
 
         return 0;