#include <rte_branch_prediction.h>
#include <rte_debug.h>
#include <rte_log.h>
-#include <rte_malloc.h>
#include <rte_errno.h>
#include <rte_spinlock.h>
#include <rte_pause.h>
return ret;
}
+
+/* enable req notifier */
+static int
+vfio_enable_req(const struct rte_intr_handle *intr_handle)
+{
+ int len, ret;
+ char irq_set_buf[IRQ_SET_BUF_LEN];
+ struct vfio_irq_set *irq_set;
+ int *fd_ptr;
+
+ len = sizeof(irq_set_buf);
+
+ irq_set = (struct vfio_irq_set *) irq_set_buf;
+ irq_set->argsz = len;
+ irq_set->count = 1;
+ irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
+ VFIO_IRQ_SET_ACTION_TRIGGER;
+ irq_set->index = VFIO_PCI_REQ_IRQ_INDEX;
+ irq_set->start = 0;
+ fd_ptr = (int *) &irq_set->data;
+ *fd_ptr = intr_handle->fd;
+
+ ret = ioctl(intr_handle->vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
+
+ if (ret) {
+ RTE_LOG(ERR, EAL, "Error enabling req interrupts for fd %d\n",
+ intr_handle->fd);
+ return -1;
+ }
+
+ return 0;
+}
+
+/* disable req notifier */
+static int
+vfio_disable_req(const struct rte_intr_handle *intr_handle)
+{
+ struct vfio_irq_set *irq_set;
+ char irq_set_buf[IRQ_SET_BUF_LEN];
+ int len, ret;
+
+ len = sizeof(struct vfio_irq_set);
+
+ irq_set = (struct vfio_irq_set *) irq_set_buf;
+ irq_set->argsz = len;
+ irq_set->count = 0;
+ irq_set->flags = VFIO_IRQ_SET_DATA_NONE | VFIO_IRQ_SET_ACTION_TRIGGER;
+ irq_set->index = VFIO_PCI_REQ_IRQ_INDEX;
+ irq_set->start = 0;
+
+ ret = ioctl(intr_handle->vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
+
+ if (ret)
+ RTE_LOG(ERR, EAL, "Error disabling req interrupts for fd %d\n",
+ intr_handle->fd);
+
+ return ret;
+}
#endif
static int
}
/* allocate a new interrupt callback entity */
- callback = rte_zmalloc("interrupt callback list",
- sizeof(*callback), 0);
+ callback = calloc(1, sizeof(*callback));
if (callback == NULL) {
RTE_LOG(ERR, EAL, "Can not allocate memory\n");
return -ENOMEM;
TAILQ_FOREACH(src, &intr_sources, next) {
if (src->intr_handle.fd == intr_handle->fd) {
/* we had no interrupts for this */
- if TAILQ_EMPTY(&src->callbacks)
+ if (TAILQ_EMPTY(&src->callbacks))
wake_thread = 1;
TAILQ_INSERT_TAIL(&(src->callbacks), callback, next);
/* no existing callbacks for this - add new source */
if (src == NULL) {
- if ((src = rte_zmalloc("interrupt source list",
- sizeof(*src), 0)) == NULL) {
+ src = calloc(1, sizeof(*src));
+ if (src == NULL) {
RTE_LOG(ERR, EAL, "Can not allocate memory\n");
- rte_free(callback);
+ free(callback);
ret = -ENOMEM;
} else {
src->intr_handle = *intr_handle;
if (cb->cb_fn == cb_fn && (cb_arg == (void *)-1 ||
cb->cb_arg == cb_arg)) {
TAILQ_REMOVE(&src->callbacks, cb, next);
- rte_free(cb);
+ free(cb);
ret++;
}
}
/* all callbacks for that source are removed. */
if (TAILQ_EMPTY(&src->callbacks)) {
TAILQ_REMOVE(&intr_sources, src, next);
- rte_free(src);
+ free(src);
}
}
if (vfio_enable_intx(intr_handle))
return -1;
break;
+ case RTE_INTR_HANDLE_VFIO_REQ:
+ if (vfio_enable_req(intr_handle))
+ return -1;
+ break;
#endif
/* not used at this moment */
case RTE_INTR_HANDLE_DEV_EVENT:
if (vfio_disable_intx(intr_handle))
return -1;
break;
+ case RTE_INTR_HANDLE_VFIO_REQ:
+ if (vfio_disable_req(intr_handle))
+ return -1;
+ break;
+
#endif
/* not used at this moment */
case RTE_INTR_HANDLE_DEV_EVENT:
bytes_read = 0;
call = true;
break;
+ case RTE_INTR_HANDLE_VFIO_REQ:
+ bytes_read = 0;
+ call = true;
+ break;
default:
bytes_read = 1;
break;
int
rte_eal_intr_init(void)
{
- int ret = 0, ret_1 = 0;
- char thread_name[RTE_MAX_THREAD_NAME_LEN];
+ int ret = 0;
/* init the global interrupt source head */
TAILQ_INIT(&intr_sources);
}
/* create the host thread to wait/handle the interrupt */
- ret = rte_ctrl_thread_create(&intr_thread, NULL,
+ ret = rte_ctrl_thread_create(&intr_thread, "eal-intr-thread", NULL,
eal_intr_thread_main, NULL);
if (ret != 0) {
rte_errno = -ret;
RTE_LOG(ERR, EAL,
"Failed to create thread for interrupt handling\n");
- } else {
- /* Set thread_name for aid in debugging. */
- snprintf(thread_name, sizeof(thread_name),
- "eal-intr-thread");
- ret_1 = rte_thread_setname(intr_thread, thread_name);
- if (ret_1 != 0)
- RTE_LOG(DEBUG, EAL,
- "Failed to set thread name for interrupt handling\n");
}
return ret;