-/*-
- * BSD LICENSE
- *
- * Copyright 2017 6WIND S.A.
- * Copyright 2017 Mellanox.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of 6WIND S.A. nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2017 6WIND S.A.
+ * Copyright 2017 Mellanox.
*/
#include <stdbool.h>
#include <stdint.h>
+#include <unistd.h>
#include <rte_debug.h>
#include <rte_atomic.h>
-#include <rte_ethdev.h>
+#include <rte_ethdev_driver.h>
#include <rte_malloc.h>
#include <rte_flow.h>
#include <rte_cycles.h>
uint8_t i;
int ret;
+ ret = failsafe_rx_intr_install(dev);
+ if (ret)
+ return ret;
FOREACH_SUBDEV(sdev, i, dev) {
if (sdev->state != DEV_ACTIVE)
continue;
continue;
return ret;
}
+ ret = failsafe_rx_intr_install_subdevice(sdev);
+ if (ret) {
+ if (!fs_err(sdev, ret))
+ continue;
+ rte_eth_dev_stop(PORT_ID(sdev));
+ return ret;
+ }
sdev->state = DEV_STARTED;
}
if (PRIV(dev)->state < DEV_STARTED)
PRIV(dev)->state = DEV_STARTED - 1;
FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_STARTED) {
rte_eth_dev_stop(PORT_ID(sdev));
+ failsafe_rx_intr_uninstall_subdevice(sdev);
sdev->state = DEV_STARTED - 1;
}
+ failsafe_rx_intr_uninstall(dev);
}
static int
if (queue == NULL)
return;
rxq = queue;
+ if (rxq->event_fd > 0)
+ close(rxq->event_fd);
dev = rxq->priv->dev;
FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
SUBOPS(sdev, rx_queue_release)
const struct rte_eth_rxconf *rx_conf,
struct rte_mempool *mb_pool)
{
+ /*
+ * FIXME: Add a proper interface in rte_eal_interrupts for
+ * allocating eventfd as an interrupt vector.
+ * For the time being, fake as if we are using MSIX interrupts,
+ * this will cause rte_intr_efd_enable to allocate an eventfd for us.
+ */
+ struct rte_intr_handle intr_handle = {
+ .type = RTE_INTR_HANDLE_VFIO_MSIX,
+ .efds = { -1, },
+ };
struct sub_device *sdev;
struct rxq *rxq;
uint8_t i;
rxq->info.nb_desc = nb_rx_desc;
rxq->priv = PRIV(dev);
rxq->sdev = PRIV(dev)->subs;
+ ret = rte_intr_efd_enable(&intr_handle, 1);
+ if (ret < 0)
+ return ret;
+ rxq->event_fd = intr_handle.efds[0];
dev->data->rx_queues[rx_queue_id] = rxq;
FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
ret = rte_eth_rx_queue_setup(PORT_ID(sdev),
return ret;
}
+static int
+fs_rx_intr_enable(struct rte_eth_dev *dev, uint16_t idx)
+{
+ struct rxq *rxq;
+ struct sub_device *sdev;
+ uint8_t i;
+ int ret;
+ int rc = 0;
+
+ if (idx >= dev->data->nb_rx_queues) {
+ rte_errno = EINVAL;
+ return -rte_errno;
+ }
+ rxq = dev->data->rx_queues[idx];
+ if (rxq == NULL || rxq->event_fd <= 0) {
+ rte_errno = EINVAL;
+ return -rte_errno;
+ }
+ /* Fail if proxy service is nor running. */
+ if (PRIV(dev)->rxp.sstate != SS_RUNNING) {
+ ERROR("failsafe interrupt services are not running");
+ rte_errno = EAGAIN;
+ return -rte_errno;
+ }
+ rxq->enable_events = 1;
+ FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
+ ret = rte_eth_dev_rx_intr_enable(PORT_ID(sdev), idx);
+ ret = fs_err(sdev, ret);
+ if (ret)
+ rc = ret;
+ }
+ if (rc)
+ rte_errno = -rc;
+ return rc;
+}
+
+static int
+fs_rx_intr_disable(struct rte_eth_dev *dev, uint16_t idx)
+{
+ struct rxq *rxq;
+ struct sub_device *sdev;
+ uint64_t u64;
+ uint8_t i;
+ int rc = 0;
+ int ret;
+
+ if (idx >= dev->data->nb_rx_queues) {
+ rte_errno = EINVAL;
+ return -rte_errno;
+ }
+ rxq = dev->data->rx_queues[idx];
+ if (rxq == NULL || rxq->event_fd <= 0) {
+ rte_errno = EINVAL;
+ return -rte_errno;
+ }
+ rxq->enable_events = 0;
+ FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
+ ret = rte_eth_dev_rx_intr_disable(PORT_ID(sdev), idx);
+ ret = fs_err(sdev, ret);
+ if (ret)
+ rc = ret;
+ }
+ /* Clear pending events */
+ while (read(rxq->event_fd, &u64, sizeof(uint64_t)) > 0)
+ ;
+ if (rc)
+ rte_errno = -rc;
+ return rc;
+}
+
static bool
fs_txq_offloads_valid(struct rte_eth_dev *dev, uint64_t offloads)
{
.tx_queue_setup = fs_tx_queue_setup,
.rx_queue_release = fs_rx_queue_release,
.tx_queue_release = fs_tx_queue_release,
+ .rx_queue_intr_enable = fs_rx_intr_enable,
+ .rx_queue_intr_disable = fs_rx_intr_disable,
.flow_ctrl_get = fs_flow_ctrl_get,
.flow_ctrl_set = fs_flow_ctrl_set,
.mac_addr_remove = fs_mac_addr_remove,
git.droids-corp.org / dpdk.git / blobdiff