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authorSelvin Xavier <selvin.xavier@emulex.com>2014-02-04 10:27:09 +0400
committerRoland Dreier <roland@purestorage.com>2014-04-03 19:30:06 +0400
commit334b8db3a6c57bec78bcaacef3b1658bfc6e2efe (patch)
tree08bc96dec91fe6ca088a60d2b754508d0725babb /drivers/infiniband
parenta51f06e1679e2abac2e8a817884e60edc18c5c86 (diff)
downloadlinux-334b8db3a6c57bec78bcaacef3b1658bfc6e2efe.tar.xz
RDMA/ocrdma: Display FW version
Adding a sysfs file for getting the FW version. Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_main.c42
1 files changed, 41 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
index 7d18b3ad21e7..61248b99f98f 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
@@ -339,9 +339,42 @@ static void ocrdma_free_resources(struct ocrdma_dev *dev)
kfree(dev->sgid_tbl);
}
+/* OCRDMA sysfs interface */
+static ssize_t show_rev(struct device *device, struct device_attribute *attr,
+ char *buf)
+{
+ struct ocrdma_dev *dev = dev_get_drvdata(device);
+
+ return scnprintf(buf, PAGE_SIZE, "0x%x\n", dev->nic_info.pdev->vendor);
+}
+
+static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr,
+ char *buf)
+{
+ struct ocrdma_dev *dev = dev_get_drvdata(device);
+
+ return scnprintf(buf, PAGE_SIZE, "%s", &dev->attr.fw_ver[0]);
+}
+
+static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
+static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
+
+static struct device_attribute *ocrdma_attributes[] = {
+ &dev_attr_hw_rev,
+ &dev_attr_fw_ver
+};
+
+static void ocrdma_remove_sysfiles(struct ocrdma_dev *dev)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(ocrdma_attributes); i++)
+ device_remove_file(&dev->ibdev.dev, ocrdma_attributes[i]);
+}
+
static struct ocrdma_dev *ocrdma_add(struct be_dev_info *dev_info)
{
- int status = 0;
+ int status = 0, i;
struct ocrdma_dev *dev;
dev = (struct ocrdma_dev *)ib_alloc_device(sizeof(struct ocrdma_dev));
@@ -370,6 +403,9 @@ static struct ocrdma_dev *ocrdma_add(struct be_dev_info *dev_info)
if (status)
goto alloc_err;
+ for (i = 0; i < ARRAY_SIZE(ocrdma_attributes); i++)
+ if (device_create_file(&dev->ibdev.dev, ocrdma_attributes[i]))
+ goto sysfs_err;
spin_lock(&ocrdma_devlist_lock);
list_add_tail_rcu(&dev->entry, &ocrdma_dev_list);
spin_unlock(&ocrdma_devlist_lock);
@@ -384,6 +420,8 @@ static struct ocrdma_dev *ocrdma_add(struct be_dev_info *dev_info)
dev_name(&dev->nic_info.pdev->dev), dev->id);
return dev;
+sysfs_err:
+ ocrdma_remove_sysfiles(dev);
alloc_err:
ocrdma_free_resources(dev);
ocrdma_cleanup_hw(dev);
@@ -411,6 +449,8 @@ static void ocrdma_remove(struct ocrdma_dev *dev)
* of the registered clients.
*/
ocrdma_rem_port_stats(dev);
+ ocrdma_remove_sysfiles(dev);
+
ib_unregister_device(&dev->ibdev);
spin_lock(&ocrdma_devlist_lock);