UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

RDMA/core: Add iterator over ib_devices 

The coming nldev needs to iterate over all IB devices in the system
and in order to not expose the ib_devices list outside the devices.c,
it is necessary to provide function iterator.

Current version is written explicitly for nldev callback to avoid
over-engineering at this stage, but it can be easily extended for
other types.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
This commit is contained in:
Leon Romanovsky 2017-06-19 14:04:56 +03:00 committed by Leon Romanovsky
parent 3250b4dbd8
commit 8030c8357a
2 changed files with 33 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/infiniband/core/core_priv.h
View File

@ -102,6 +102,14 @@ void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
roce_netdev_callback cb,
void *cookie);
typedef int (*nldev_callback)(struct ib_device *device,
struct sk_buff *skb,
struct netlink_callback *cb,
unsigned int idx);
int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb,
struct netlink_callback *cb);
enum ib_cache_gid_default_mode {
IB_CACHE_GID_DEFAULT_MODE_SET,
IB_CACHE_GID_DEFAULT_MODE_DELETE

25
drivers/infiniband/core/device.c
View File

@ -892,6 +892,31 @@ void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
up_read(&lists_rwsem);
}
/**
* ib_enum_all_devs - enumerate all ib_devices
* @cb: Callback to call for each found ib_device
*
* Enumerates all ib_devices and calls callback() on each device.
*/
int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb,
struct netlink_callback *cb)
{
struct ib_device *dev;
unsigned int idx = 0;
int ret = 0;
down_read(&lists_rwsem);
list_for_each_entry(dev, &device_list, core_list) {
ret = nldev_cb(dev, skb, cb, idx);
if (ret)
break;
idx++;
}
up_read(&lists_rwsem);
return ret;
}
/**
* ib_query_pkey - Get P_Key table entry
* @device:Device to query