diff options
| author | Steve Wise <swise@opengridcomputing.com> | 2018-03-02 00:57:44 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2018-03-08 23:03:03 +0300 |
| commit | 00313983cda6f37f747058e58c1cb8fba02bc134 (patch) | |
| tree | 70e6323e9d53958672bb012c3641e97964e98b56 /include/rdma/rdma_cm.h | |
| parent | a3b641af72ba899991ed847556951128ef41d52f (diff) | |
| download | linux-00313983cda6f37f747058e58c1cb8fba02bc134.tar.xz | |
RDMA/nldev: provide detailed CM_ID information
Implement RDMA nldev netlink interface to get detailed CM_ID information.
Because cm_id's are attached to rdma devices in various work queue
contexts, the pid and task information at restrak_add() time is sometimes
not useful. For example, an nvme/f host connection cm_id ends up being
bound to a device in a work queue context and the resulting pid at attach
time no longer exists after connection setup. So instead we mark all
cm_id's created via the rdma_ucm as "user", and all others as "kernel".
This required tweaking the restrack code a little. It also required
wrapping some rdma_cm functions to allow passing the module name string.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/rdma/rdma_cm.h')
| -rw-r--r-- | include/rdma/rdma_cm.h | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/include/rdma/rdma_cm.h b/include/rdma/rdma_cm.h index 6538a5cc27b6..62caae818173 100644 --- a/include/rdma/rdma_cm.h +++ b/include/rdma/rdma_cm.h @@ -157,6 +157,11 @@ struct rdma_cm_id { u8 port_num; }; +struct rdma_cm_id *__rdma_create_id(struct net *net, + rdma_cm_event_handler event_handler, + void *context, enum rdma_port_space ps, + enum ib_qp_type qp_type, const char *caller); + /** * rdma_create_id - Create an RDMA identifier. * @@ -169,10 +174,9 @@ struct rdma_cm_id { * * The id holds a reference on the network namespace until it is destroyed. */ -struct rdma_cm_id *rdma_create_id(struct net *net, - rdma_cm_event_handler event_handler, - void *context, enum rdma_port_space ps, - enum ib_qp_type qp_type); +#define rdma_create_id(net, event_handler, context, ps, qp_type) \ + __rdma_create_id((net), (event_handler), (context), (ps), (qp_type), \ + KBUILD_MODNAME) /** * rdma_destroy_id - Destroys an RDMA identifier. @@ -284,6 +288,9 @@ int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param); */ int rdma_listen(struct rdma_cm_id *id, int backlog); +int __rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param, + const char *caller); + /** * rdma_accept - Called to accept a connection request or response. * @id: Connection identifier associated with the request. @@ -299,7 +306,8 @@ int rdma_listen(struct rdma_cm_id *id, int backlog); * state of the qp associated with the id is modified to error, such that any * previously posted receive buffers would be flushed. */ -int rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param); +#define rdma_accept(id, conn_param) \ + __rdma_accept((id), (conn_param), KBUILD_MODNAME) /** * rdma_notify - Notifies the RDMA CM of an asynchronous event that has |