--- /dev/null
+/*-
+ * 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.
+ */
+
+#include <sys/queue.h>
+
+#include <rte_malloc.h>
+#include <rte_tailq.h>
+#include <rte_flow.h>
+#include <rte_flow_driver.h>
+
+#include "failsafe_private.h"
+
+static struct rte_flow *
+fs_flow_allocate(const struct rte_flow_attr *attr,
+ const struct rte_flow_item *items,
+ const struct rte_flow_action *actions)
+{
+ struct rte_flow *flow;
+ size_t fdsz;
+
+ fdsz = rte_flow_copy(NULL, 0, attr, items, actions);
+ flow = rte_zmalloc(NULL,
+ sizeof(struct rte_flow) + fdsz,
+ RTE_CACHE_LINE_SIZE);
+ if (flow == NULL) {
+ ERROR("Could not allocate new flow");
+ return NULL;
+ }
+ flow->fd = (void *)((uintptr_t)flow + sizeof(*flow));
+ if (rte_flow_copy(flow->fd, fdsz, attr, items, actions) != fdsz) {
+ ERROR("Failed to copy flow description");
+ rte_free(flow);
+ return NULL;
+ }
+ return flow;
+}
+
+static void
+fs_flow_release(struct rte_flow **flow)
+{
+ rte_free(*flow);
+ *flow = NULL;
+}
+
+static int
+fs_flow_validate(struct rte_eth_dev *dev,
+ const struct rte_flow_attr *attr,
+ const struct rte_flow_item patterns[],
+ const struct rte_flow_action actions[],
+ struct rte_flow_error *error)
+{
+ struct sub_device *sdev;
+ uint8_t i;
+ int ret;
+
+ FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
+ DEBUG("Calling rte_flow_validate on sub_device %d", i);
+ ret = rte_flow_validate(PORT_ID(sdev),
+ attr, patterns, actions, error);
+ if (ret) {
+ ERROR("Operation rte_flow_validate failed for sub_device %d"
+ " with error %d", i, ret);
+ return ret;
+ }
+ }
+ return 0;
+}
+
+static struct rte_flow *
+fs_flow_create(struct rte_eth_dev *dev,
+ const struct rte_flow_attr *attr,
+ const struct rte_flow_item patterns[],
+ const struct rte_flow_action actions[],
+ struct rte_flow_error *error)
+{
+ struct sub_device *sdev;
+ struct rte_flow *flow;
+ uint8_t i;
+
+ flow = fs_flow_allocate(attr, patterns, actions);
+ FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
+ flow->flows[i] = rte_flow_create(PORT_ID(sdev),
+ attr, patterns, actions, error);
+ if (flow->flows[i] == NULL) {
+ ERROR("Failed to create flow on sub_device %d",
+ i);
+ goto err;
+ }
+ }
+ TAILQ_INSERT_TAIL(&PRIV(dev)->flow_list, flow, next);
+ return flow;
+err:
+ FOREACH_SUBDEV(sdev, i, dev) {
+ if (flow->flows[i] != NULL)
+ rte_flow_destroy(PORT_ID(sdev),
+ flow->flows[i], error);
+ }
+ fs_flow_release(&flow);
+ return NULL;
+}
+
+static int
+fs_flow_destroy(struct rte_eth_dev *dev,
+ struct rte_flow *flow,
+ struct rte_flow_error *error)
+{
+ struct sub_device *sdev;
+ uint8_t i;
+ int ret;
+
+ if (flow == NULL) {
+ ERROR("Invalid flow");
+ return -EINVAL;
+ }
+ ret = 0;
+ FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
+ int local_ret;
+
+ if (flow->flows[i] == NULL)
+ continue;
+ local_ret = rte_flow_destroy(PORT_ID(sdev),
+ flow->flows[i], error);
+ if (local_ret) {
+ ERROR("Failed to destroy flow on sub_device %d: %d",
+ i, local_ret);
+ if (ret == 0)
+ ret = local_ret;
+ }
+ }
+ TAILQ_REMOVE(&PRIV(dev)->flow_list, flow, next);
+ fs_flow_release(&flow);
+ return ret;
+}
+
+static int
+fs_flow_flush(struct rte_eth_dev *dev,
+ struct rte_flow_error *error)
+{
+ struct sub_device *sdev;
+ struct rte_flow *flow;
+ void *tmp;
+ uint8_t i;
+ int ret;
+
+ FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
+ DEBUG("Calling rte_flow_flush on sub_device %d", i);
+ ret = rte_flow_flush(PORT_ID(sdev), error);
+ if (ret) {
+ ERROR("Operation rte_flow_flush failed for sub_device %d"
+ " with error %d", i, ret);
+ return ret;
+ }
+ }
+ TAILQ_FOREACH_SAFE(flow, &PRIV(dev)->flow_list, next, tmp) {
+ TAILQ_REMOVE(&PRIV(dev)->flow_list, flow, next);
+ fs_flow_release(&flow);
+ }
+ return 0;
+}
+
+static int
+fs_flow_query(struct rte_eth_dev *dev,
+ struct rte_flow *flow,
+ enum rte_flow_action_type type,
+ void *arg,
+ struct rte_flow_error *error)
+{
+ struct sub_device *sdev;
+
+ sdev = TX_SUBDEV(dev);
+ if (sdev != NULL) {
+ return rte_flow_query(PORT_ID(sdev),
+ flow->flows[SUB_ID(sdev)], type, arg, error);
+ }
+ WARN("No active sub_device to query about its flow");
+ return -1;
+}
+
+static int
+fs_flow_isolate(struct rte_eth_dev *dev,
+ int set,
+ struct rte_flow_error *error)
+{
+ struct sub_device *sdev;
+ uint8_t i;
+ int ret;
+
+ FOREACH_SUBDEV(sdev, i, dev) {
+ if (sdev->state < DEV_PROBED)
+ continue;
+ DEBUG("Calling rte_flow_isolate on sub_device %d", i);
+ if (PRIV(dev)->flow_isolated != sdev->flow_isolated)
+ WARN("flow isolation mode of sub_device %d in incoherent state.",
+ i);
+ ret = rte_flow_isolate(PORT_ID(sdev), set, error);
+ if (ret) {
+ ERROR("Operation rte_flow_isolate failed for sub_device %d"
+ " with error %d", i, ret);
+ return ret;
+ }
+ sdev->flow_isolated = set;
+ }
+ PRIV(dev)->flow_isolated = set;
+ return 0;
+}
+
+const struct rte_flow_ops fs_flow_ops = {
+ .validate = fs_flow_validate,
+ .create = fs_flow_create,
+ .destroy = fs_flow_destroy,
+ .flush = fs_flow_flush,
+ .query = fs_flow_query,
+ .isolate = fs_flow_isolate,
+};
Code Review / deb_dpdk.git / blobdiff