mutex_lock(&ctx->file->mut);
if (event->event == RDMA_CM_EVENT_CONNECT_REQUEST) {
if (!ctx->backlog) {
- ret = -EDQUOT;
+ ret = -ENOMEM;
kfree(uevent);
goto out;
}
mutex_lock(&file->mut);
while (list_empty(&file->event_list)) {
- if (file->filp->f_flags & O_NONBLOCK) {
- ret = -EAGAIN;
- break;
- }
+ mutex_unlock(&file->mut);
- if (signal_pending(current)) {
- ret = -ERESTARTSYS;
- break;
- }
+ if (file->filp->f_flags & O_NONBLOCK)
+ return -EAGAIN;
+
+ if (wait_event_interruptible(file->poll_wait,
+ !list_empty(&file->event_list)))
+ return -ERESTARTSYS;
- prepare_to_wait(&file->poll_wait, &wait, TASK_INTERRUPTIBLE);
- mutex_unlock(&file->mut);
- schedule();
mutex_lock(&file->mut);
- finish_wait(&file->poll_wait, &wait);
}
- if (ret)
- goto done;
-
uevent = list_entry(file->event_list.next, struct ucma_event, list);
if (uevent->resp.event == RDMA_CM_EVENT_CONNECT_REQUEST) {
return ret;
}
+static int ucma_set_option_id(struct ucma_context *ctx, int optname,
+ void *optval, size_t optlen)
+{
+ int ret = 0;
+
+ switch (optname) {
+ case RDMA_OPTION_ID_TOS:
+ if (optlen != sizeof(u8)) {
+ ret = -EINVAL;
+ break;
+ }
+ rdma_set_service_type(ctx->cm_id, *((u8 *) optval));
+ break;
+ default:
+ ret = -ENOSYS;
+ }
+
+ return ret;
+}
+
+static int ucma_set_option_level(struct ucma_context *ctx, int level,
+ int optname, void *optval, size_t optlen)
+{
+ int ret;
+
+ switch (level) {
+ case RDMA_OPTION_ID:
+ ret = ucma_set_option_id(ctx, optname, optval, optlen);
+ break;
+ default:
+ ret = -ENOSYS;
+ }
+
+ return ret;
+}
+
+static ssize_t ucma_set_option(struct ucma_file *file, const char __user *inbuf,
+ int in_len, int out_len)
+{
+ struct rdma_ucm_set_option cmd;
+ struct ucma_context *ctx;
+ void *optval;
+ int ret;
+
+ if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+ return -EFAULT;
+
+ ctx = ucma_get_ctx(file, cmd.id);
+ if (IS_ERR(ctx))
+ return PTR_ERR(ctx);
+
+ optval = kmalloc(cmd.optlen, GFP_KERNEL);
+ if (!optval) {
+ ret = -ENOMEM;
+ goto out1;
+ }
+
+ if (copy_from_user(optval, (void __user *) (unsigned long) cmd.optval,
+ cmd.optlen)) {
+ ret = -EFAULT;
+ goto out2;
+ }
+
+ ret = ucma_set_option_level(ctx, cmd.level, cmd.optname, optval,
+ cmd.optlen);
+out2:
+ kfree(optval);
+out1:
+ ucma_put_ctx(ctx);
+ return ret;
+}
+
static ssize_t ucma_notify(struct ucma_file *file, const char __user *inbuf,
int in_len, int out_len)
{
[RDMA_USER_CM_CMD_INIT_QP_ATTR] = ucma_init_qp_attr,
[RDMA_USER_CM_CMD_GET_EVENT] = ucma_get_event,
[RDMA_USER_CM_CMD_GET_OPTION] = NULL,
- [RDMA_USER_CM_CMD_SET_OPTION] = NULL,
+ [RDMA_USER_CM_CMD_SET_OPTION] = ucma_set_option,
[RDMA_USER_CM_CMD_NOTIFY] = ucma_notify,
[RDMA_USER_CM_CMD_JOIN_MCAST] = ucma_join_multicast,
[RDMA_USER_CM_CMD_LEAVE_MCAST] = ucma_leave_multicast,