From: Leon Romanovsky <leonro@xxxxxxxxxxxx>
Export the net device name and index to easily find connection
between IB devices and relevant net devices.
We also updated the comment regarding the devices without FW.
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
drivers/infiniband/core/nldev.c | 24 ++++++++++++++++++++++--
include/uapi/rdma/rdma_netlink.h | 4 ++++
2 files changed, 26 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c
index 192084c78352..29d4518c3f6f 100644
--- a/drivers/infiniband/core/nldev.c
+++ b/drivers/infiniband/core/nldev.c
@@ -95,6 +95,9 @@ static const struct nla_policy nldev_policy[RDMA_NLDEV_ATTR_MAX] = {
[RDMA_NLDEV_ATTR_RES_PD_ENTRY] = { .type = NLA_NESTED },
[RDMA_NLDEV_ATTR_RES_LOCAL_DMA_LKEY] = { .type = NLA_U32 },
[RDMA_NLDEV_ATTR_RES_UNSAFE_GLOBAL_RKEY] = { .type = NLA_U32 },
+ [RDMA_NLDEV_ATTR_NDEV_INDEX] = { .type = NLA_U32 },
+ [RDMA_NLDEV_ATTR_NDEV_NAME] = { .type = NLA_NUL_STRING,
+ .len = IFNAMSIZ },
};
static int fill_nldev_handle(struct sk_buff *msg, struct ib_device *device)
@@ -123,7 +126,7 @@ static int fill_dev_info(struct sk_buff *msg, struct ib_device *device)
return -EMSGSIZE;
ib_get_device_fw_str(device, fw);
- /* Device without FW has strlen(fw) */
+ /* Device without FW has strlen(fw) = 0 */
if (strlen(fw) && nla_put_string(msg, RDMA_NLDEV_ATTR_FW_VERSION, fw))
return -EMSGSIZE;
@@ -141,6 +144,7 @@ static int fill_dev_info(struct sk_buff *msg, struct ib_device *device)
static int fill_port_info(struct sk_buff *msg,
struct ib_device *device, u32 port)
{
+ struct net_device *netdev = NULL;
struct ib_port_attr attr;
int ret;
@@ -174,7 +178,23 @@ static int fill_port_info(struct sk_buff *msg,
return -EMSGSIZE;
if (nla_put_u8(msg, RDMA_NLDEV_ATTR_PORT_PHYS_STATE, attr.phys_state))
return -EMSGSIZE;
- return 0;
+
+ if (device->get_netdev)
+ netdev = device->get_netdev(device, port);
+
+ if (netdev) {
+ ret = nla_put_u32(msg,
+ RDMA_NLDEV_ATTR_NDEV_INDEX, netdev->ifindex);
+ if (ret)
+ goto out;
+ ret = nla_put_string(msg,
+ RDMA_NLDEV_ATTR_NDEV_NAME, netdev->name);
+ }
+
+out:
+ if (netdev)
+ dev_put(netdev);
+ return ret;
}
static int fill_res_info_entry(struct sk_buff *msg,
diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h
index 351139c7e2e7..144b6334e48e 100644
--- a/include/uapi/rdma/rdma_netlink.h
+++ b/include/uapi/rdma/rdma_netlink.h
@@ -388,6 +388,10 @@ enum rdma_nldev_attr {
RDMA_NLDEV_ATTR_RES_LOCAL_DMA_LKEY, /* u32 */
RDMA_NLDEV_ATTR_RES_UNSAFE_GLOBAL_RKEY, /* u32 */
+ /* Netdev information for relevant protocols, like RoCE and iWARP */
+ RDMA_NLDEV_ATTR_NDEV_INDEX, /* u32 */
+ RDMA_NLDEV_ATTR_NDEV_NAME, /* string */
+
RDMA_NLDEV_ATTR_MAX
};
#endif /* _UAPI_RDMA_NETLINK_H */
--
2.14.3
--
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