[PATCH] IB/mthca: add HCA board ID to sysfs info

Add support for reporting HCA board ID returned from QUERY_ADAPTER
firmware command through sysfs.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index e2db5e001869..f5e135f1dc59 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -958,14 +958,22 @@ static ssize_t show_hca(struct class_device *cdev, char *buf)
         }
 }
 
+static ssize_t show_board(struct class_device *cdev, char *buf)
+{
+        struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev);
+        return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id);
+}
+
 static CLASS_DEVICE_ATTR(hw_rev,   S_IRUGO, show_rev,    NULL);
 static CLASS_DEVICE_ATTR(fw_ver,   S_IRUGO, show_fw_ver, NULL);
 static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca,    NULL);
+static CLASS_DEVICE_ATTR(board_id, S_IRUGO, show_board,  NULL);
 
 static struct class_device_attribute *mthca_class_attributes[] = {
         &class_device_attr_hw_rev,
         &class_device_attr_fw_ver,
-        &class_device_attr_hca_type
+        &class_device_attr_hca_type,
+        &class_device_attr_board_id
 };
 
 int mthca_register_device(struct mthca_dev *dev)