diff mbox

[rdma-next,V1,1/7] IB/core: Save the device attributes on the device structure

Message ID 1450429190-5898-2-git-send-email-ogerlitz@mellanox.com (mailing list archive)
State Accepted
Headers show

Commit Message

Or Gerlitz Dec. 18, 2015, 8:59 a.m. UTC 
From: Ira Weiny <ira.weiny@intel.com>

This way both the IB core and upper level drivers can access these cached
device attributes rather than querying or caching them on their own.

Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
---
 drivers/infiniband/core/device.c | 8 ++++++++
 include/rdma/ib_verbs.h          | 1 +
 2 files changed, 9 insertions(+)
diff mbox

Patch

diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index 179e813..568592e3 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -325,6 +325,7 @@  int ib_register_device(struct ib_device *device,
 {
 	int ret;
 	struct ib_client *client;
+	struct ib_udata uhw = {.outlen = 0, .inlen = 0};
 
 	mutex_lock(&device_mutex);
 
@@ -352,6 +353,13 @@  int ib_register_device(struct ib_device *device,
 		goto out;
 	}
 
+	memset(&device->attrs, 0, sizeof(device->attrs));
+	ret = device->query_device(device, &device->attrs, &uhw);
+	if (ret) {
+		printk(KERN_WARNING "Couldn't query the device attributes\n");
+		goto out;
+	}
+
 	ret = ib_device_register_sysfs(device, port_callback);
 	if (ret) {
 		printk(KERN_WARNING "Couldn't register device %s with driver model\n",
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 120da1d..730dcfb 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1823,6 +1823,7 @@  struct ib_device {
 	u16                          is_switch:1;
 	u8                           node_type;
 	u8                           phys_port_cnt;
+	struct ib_device_attr        attrs;
 
 	/**
 	 * The following mandatory functions are used only at device