Add a dellink function pointer to rdma_link_ops to allow drivers to clean up resources created during newlink.
Reviewed-by: David Ahern <[email protected]> Signed-off-by: Zhu Yanjun <[email protected]> --- drivers/infiniband/core/nldev.c | 12 ++++++++++++ include/rdma/rdma_netlink.h | 2 ++ 2 files changed, 14 insertions(+) diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index 2220a2dfab24..dbf2eea078e9 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -1824,6 +1824,18 @@ static int nldev_dellink(struct sk_buff *skb, struct nlmsghdr *nlh, return -EINVAL; } + /* + * This path is triggered by the 'rdma link delete' administrative command. + * For Soft-RoCE (RXE), we ensure that transport sockets are closed here. + * Note: iWARP driver does not implement .dellink, so this logic is + * implicitly scoped to the driver supporting dynamic link deletion like RXE. + */ + if (device->link_ops && device->link_ops->dellink) { + err = device->link_ops->dellink(device); + if (err) + return err; + } + ib_unregister_device_and_put(device); return 0; } diff --git a/include/rdma/rdma_netlink.h b/include/rdma/rdma_netlink.h index 326deaf56d5d..2fd1358ea57d 100644 --- a/include/rdma/rdma_netlink.h +++ b/include/rdma/rdma_netlink.h @@ -5,6 +5,7 @@ #include <linux/netlink.h> #include <uapi/rdma/rdma_netlink.h> +#include <rdma/ib_verbs.h> struct ib_device; @@ -126,6 +127,7 @@ struct rdma_link_ops { struct list_head list; const char *type; int (*newlink)(const char *ibdev_name, struct net_device *ndev); + int (*dellink)(struct ib_device *dev); }; void rdma_link_register(struct rdma_link_ops *ops); -- 2.52.0
