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| author |   Steve Wise <swise@opengridcomputing.com> | 2018-03-01 13:57:44 -0800 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2018-03-08 15:03:03 -0500 |
| commit | 00313983cda6f37f747058e58c1cb8fba02bc134 (patch) | |
| tree | 70e6323e9d53958672bb012c3641e97964e98b56 /drivers/infiniband/core/ucma.c | |
| parent | RDMA/CM: move rdma_id_private to cma_priv.h (diff) | |
| download | linux-dev-00313983cda6f37f747058e58c1cb8fba02bc134.tar.xz linux-dev-00313983cda6f37f747058e58c1cb8fba02bc134.zip | |
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 '')
| -rw-r--r-- | drivers/infiniband/core/ucma.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c index f015f1bf88c9..476462639ea8 100644 --- a/drivers/infiniband/core/ucma.c +++ b/drivers/infiniband/core/ucma.c @@ -476,8 +476,8 @@ static ssize_t ucma_create_id(struct ucma_file *file, const char __user *inbuf, return -ENOMEM; ctx->uid = cmd.uid; - ctx->cm_id = rdma_create_id(current->nsproxy->net_ns, - ucma_event_handler, ctx, cmd.ps, qp_type); + ctx->cm_id = __rdma_create_id(current->nsproxy->net_ns, + ucma_event_handler, ctx, cmd.ps, qp_type, NULL); if (IS_ERR(ctx->cm_id)) { ret = PTR_ERR(ctx->cm_id); goto err1; @@ -1084,12 +1084,12 @@ static ssize_t ucma_accept(struct ucma_file *file, const char __user *inbuf, if (cmd.conn_param.valid) { ucma_copy_conn_param(ctx->cm_id, &conn_param, &cmd.conn_param); mutex_lock(&file->mut); - ret = rdma_accept(ctx->cm_id, &conn_param); + ret = __rdma_accept(ctx->cm_id, &conn_param, NULL); if (!ret) ctx->uid = cmd.uid; mutex_unlock(&file->mut); } else - ret = rdma_accept(ctx->cm_id, NULL); + ret = __rdma_accept(ctx->cm_id, NULL, NULL); ucma_put_ctx(ctx); return ret; |