+ uint32_t i;
+ int fd;
+ uint32_t n = RTE_MIN(nb_efd, (uint32_t)RTE_MAX_RXTX_INTR_VEC_ID);
+
+ if (intr_handle->type == RTE_INTR_HANDLE_VFIO_MSIX) {
+ for (i = 0; i < n; i++) {
+ fd = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
+ if (fd < 0) {
+ RTE_LOG(ERR, EAL,
+ "can't setup eventfd, error %i (%s)\n",
+ errno, strerror(errno));
+ return -1;
+ }
+ intr_handle->efds[i] = fd;
+ }
+ intr_handle->nb_efd = n;
+ intr_handle->max_intr = NB_OTHER_INTR + n;
+ } else {
+ intr_handle->efds[0] = intr_handle->fd;
+ intr_handle->nb_efd = RTE_MIN(nb_efd, 1U);
+ intr_handle->max_intr = NB_OTHER_INTR;
+ }
+
+ return 0;
+}
+
+void
+rte_intr_efd_disable(struct rte_intr_handle *intr_handle)
+{
+ uint32_t i;
+ struct rte_epoll_event *rev;
+
+ for (i = 0; i < intr_handle->nb_efd; i++) {
+ rev = &intr_handle->elist[i];
+ if (rev->status == RTE_EPOLL_INVALID)
+ continue;
+ if (rte_epoll_ctl(rev->epfd, EPOLL_CTL_DEL, rev->fd, rev)) {
+ /* force free if the entry valid */
+ eal_epoll_data_safe_free(rev);
+ rev->status = RTE_EPOLL_INVALID;
+ }
+ }
+
+ if (intr_handle->max_intr > intr_handle->nb_efd) {
+ for (i = 0; i < intr_handle->nb_efd; i++)
+ close(intr_handle->efds[i]);
+ }
+ intr_handle->nb_efd = 0;
+ intr_handle->max_intr = 0;
+}
+
+int
+rte_intr_dp_is_en(struct rte_intr_handle *intr_handle)
+{
+ return !(!intr_handle->nb_efd);
+}
+
+int
+rte_intr_allow_others(struct rte_intr_handle *intr_handle)
+{
+ return !!(intr_handle->max_intr - intr_handle->nb_efd);