Imported Upstream version 17.05

[deb_dpdk.git] / drivers / net / tap / tap_flow.h

diff --git a/drivers/net/tap/tap_flow.h b/drivers/net/tap/tap_flow.h
new file mode 100644 (file)
index 0000000..94414f1
--- /dev/null
+++ b/drivers/net/tap/tap_flow.h
@@ -0,0 +1,82 @@
+/*-
+ *   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.
+ */
+
+#ifndef _TAP_FLOW_H_
+#define _TAP_FLOW_H_
+
+#include <rte_flow.h>
+#include <rte_flow_driver.h>
+#include <rte_eth_tap.h>
+
+/**
+ * In TC, priority 0 means we require the kernel to allocate one for us.
+ * In rte_flow, however, we want the priority 0 to be the most important one.
+ * Use an offset to have the most important priority being 1 in TC.
+ */
+#define PRIORITY_OFFSET 1
+#define PRIORITY_MASK (0xfff)
+#define MAX_PRIORITY (PRIORITY_MASK - PRIORITY_OFFSET)
+#define GROUP_MASK (0xf)
+#define GROUP_SHIFT 12
+#define MAX_GROUP GROUP_MASK
+
+/**
+ * These index are actually in reversed order: their priority is processed
+ * by subtracting their value to the lowest priority (PRIORITY_MASK).
+ * Thus the first one will have the lowest priority in the end
+ * (but biggest value).
+ */
+enum implicit_rule_index {
+       TAP_REMOTE_TX,
+       TAP_REMOTE_BROADCASTV6,
+       TAP_REMOTE_BROADCAST,
+       TAP_REMOTE_ALLMULTI,
+       TAP_REMOTE_PROMISC,
+       TAP_REMOTE_LOCAL_MAC,
+       TAP_REMOTE_MAX_IDX,
+};
+
+int tap_dev_filter_ctrl(struct rte_eth_dev *dev,
+                       enum rte_filter_type filter_type,
+                       enum rte_filter_op filter_op,
+                       void *arg);
+int tap_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error);
+
+int tap_flow_implicit_create(struct pmd_internals *pmd,
+                            enum implicit_rule_index idx);
+int tap_flow_implicit_destroy(struct pmd_internals *pmd,
+                             enum implicit_rule_index idx);
+int tap_flow_implicit_flush(struct pmd_internals *pmd,
+                           struct rte_flow_error *error);
+
+#endif /* _TAP_FLOW_H_ */