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authorLeon Romanovsky <leonro@mellanox.com>2017-06-20 14:47:08 +0300
committerLeon Romanovsky <leon@kernel.org>2017-08-10 13:28:10 +0300
commitac50525374315b9b609747f83b07f8dccb06b722 (patch)
tree2d5f4773b916f70b58ebe38efdef631540178cd4 /drivers/infiniband/core/nldev.c
parentRDMA/netlink: Implement nldev port doit callback (diff)
downloadlinux-dev-ac50525374315b9b609747f83b07f8dccb06b722.tar.xz
linux-dev-ac50525374315b9b609747f83b07f8dccb06b722.zip
RDMA/netlink: Expose device and port capability masks
The port capability mask is exposed to user space via sysfs interface, while device capabilities are available for verbs only. This patch provides those capabilities through netlink interface. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Diffstat (limited to 'drivers/infiniband/core/nldev.c')
-rw-r--r--drivers/infiniband/core/nldev.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c
index db9d9ffc1415..94c1e49074f5 100644
--- a/drivers/infiniband/core/nldev.c
+++ b/drivers/infiniband/core/nldev.c
@@ -50,18 +50,37 @@ static int fill_dev_info(struct sk_buff *msg, struct ib_device *device)
return -EMSGSIZE;
if (nla_put_u32(msg, RDMA_NLDEV_ATTR_PORT_INDEX, rdma_end_port(device)))
return -EMSGSIZE;
+
+ BUILD_BUG_ON(sizeof(device->attrs.device_cap_flags) != sizeof(u64));
+ if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_CAP_FLAGS,
+ device->attrs.device_cap_flags, 0))
+ return -EMSGSIZE;
+
return 0;
}
static int fill_port_info(struct sk_buff *msg,
struct ib_device *device, u32 port)
{
+ struct ib_port_attr attr;
+ int ret;
+
if (nla_put_u32(msg, RDMA_NLDEV_ATTR_DEV_INDEX, device->index))
return -EMSGSIZE;
if (nla_put_string(msg, RDMA_NLDEV_ATTR_DEV_NAME, device->name))
return -EMSGSIZE;
if (nla_put_u32(msg, RDMA_NLDEV_ATTR_PORT_INDEX, port))
return -EMSGSIZE;
+
+ ret = ib_query_port(device, port, &attr);
+ if (ret)
+ return ret;
+
+ BUILD_BUG_ON(sizeof(attr.port_cap_flags) > sizeof(u64));
+ if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_CAP_FLAGS,
+ (u64)attr.port_cap_flags, 0))
+ return -EMSGSIZE;
+
return 0;
}