ethdev: introduce generic filter control
authorJingjing Wu <jingjing.wu@intel.com>
Mon, 20 Oct 2014 05:40:32 +0000 (13:40 +0800)
committerThomas Monjalon <thomas.monjalon@6wind.com>
Mon, 20 Oct 2014 21:51:05 +0000 (23:51 +0200)
Define a new API umbrella to configure any kind of Rx filtering.
New functions:
- rte_eth_dev_filter_supported
- rte_eth_dev_filter_ctrl

Filter types, operations, and structures are defined specifically in new
header file lib/librte_eth/rte_dev_ctrl.h.

As to the implementation discussion, please refer to
http://dpdk.org/ml/archives/dev/2014-September/005179.html

Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
[Thomas: rename ops and remove unused types]
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
lib/librte_ether/Makefile
lib/librte_ether/rte_eth_ctrl.h [new file with mode: 0644]
lib/librte_ether/rte_ethdev.c
lib/librte_ether/rte_ethdev.h

index b310f8b..a461c31 100644 (file)
@@ -46,6 +46,7 @@ SRCS-y += rte_ethdev.c
 #
 SYMLINK-y-include += rte_ether.h
 SYMLINK-y-include += rte_ethdev.h
+SYMLINK-y-include += rte_eth_ctrl.h
 
 # this lib depends upon:
 DEPDIRS-y += lib/librte_eal lib/librte_mempool lib/librte_ring lib/librte_mbuf
diff --git a/lib/librte_ether/rte_eth_ctrl.h b/lib/librte_ether/rte_eth_ctrl.h
new file mode 100644 (file)
index 0000000..df21ac6
--- /dev/null
@@ -0,0 +1,78 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   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 Intel Corporation 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 _RTE_ETH_CTRL_H_
+#define _RTE_ETH_CTRL_H_
+
+/**
+ * @file
+ *
+ * Ethernet device features and related data structures used
+ * by control APIs should be defined in this file.
+ *
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Feature filter types
+ */
+enum rte_filter_type {
+       RTE_ETH_FILTER_NONE = 0,
+       RTE_ETH_FILTER_MAX
+};
+
+/**
+ * Generic operations on filters
+ */
+enum rte_filter_op {
+       RTE_ETH_FILTER_NOP = 0,
+       /**< used to check whether the type filter is supported */
+       RTE_ETH_FILTER_ADD,      /**< add filter entry */
+       RTE_ETH_FILTER_UPDATE,   /**< update filter entry */
+       RTE_ETH_FILTER_DELETE,   /**< delete filter entry */
+       RTE_ETH_FILTER_FLUSH,    /**< flush all entries */
+       RTE_ETH_FILTER_GET,      /**< get filter entry */
+       RTE_ETH_FILTER_SET,      /**< configurations */
+       RTE_ETH_FILTER_INFO,
+       /**< get information of filter, such as status or statistics */
+       RTE_ETH_FILTER_OP_MAX
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_ETH_CTRL_H_ */
index 6a8b363..50f10d9 100644 (file)
@@ -3148,3 +3148,35 @@ rte_eth_dev_get_flex_filter(uint8_t port_id, uint16_t index,
        return (*dev->dev_ops->get_flex_filter)(dev, index, filter,
                                                rx_queue);
 }
+
+int
+rte_eth_dev_filter_supported(uint8_t port_id, enum rte_filter_type filter_type)
+{
+       struct rte_eth_dev *dev;
+
+       if (port_id >= nb_ports) {
+               PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
+               return -ENODEV;
+       }
+
+       dev = &rte_eth_devices[port_id];
+       FUNC_PTR_OR_ERR_RET(*dev->dev_ops->filter_ctrl, -ENOTSUP);
+       return (*dev->dev_ops->filter_ctrl)(dev, filter_type,
+                               RTE_ETH_FILTER_NOP, NULL);
+}
+
+int
+rte_eth_dev_filter_ctrl(uint8_t port_id, enum rte_filter_type filter_type,
+                      enum rte_filter_op filter_op, void *arg)
+{
+       struct rte_eth_dev *dev;
+
+       if (port_id >= nb_ports) {
+               PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
+               return -ENODEV;
+       }
+
+       dev = &rte_eth_devices[port_id];
+       FUNC_PTR_OR_ERR_RET(*dev->dev_ops->filter_ctrl, -ENOTSUP);
+       return (*dev->dev_ops->filter_ctrl)(dev, filter_type, filter_op, arg);
+}
index cf0d48c..b69a6af 100644 (file)
@@ -177,6 +177,7 @@ extern "C" {
 #include <rte_pci.h>
 #include <rte_mbuf.h>
 #include "rte_ether.h"
+#include "rte_eth_ctrl.h"
 
 /**
  * A structure used to retrieve statistics for an Ethernet port.
@@ -1386,6 +1387,12 @@ typedef int (*eth_get_flex_filter_t)(struct rte_eth_dev *dev,
                        uint16_t *rx_queue);
 /**< @internal Get a flex filter rule on an Ethernet device */
 
+typedef int (*eth_filter_ctrl_t)(struct rte_eth_dev *dev,
+                                enum rte_filter_type filter_type,
+                                enum rte_filter_op filter_op,
+                                void *arg);
+/**< @internal Take operations to assigned filter type on an Ethernet device */
+
 /**
  * @internal A structure containing the functions exported by an Ethernet driver.
  */
@@ -1494,6 +1501,7 @@ struct eth_dev_ops {
        eth_add_flex_filter_t          add_flex_filter;      /**< add flex filter. */
        eth_remove_flex_filter_t       remove_flex_filter;   /**< remove flex filter. */
        eth_get_flex_filter_t          get_flex_filter;      /**< get flex filter. */
+       eth_filter_ctrl_t              filter_ctrl;          /**< common filter control*/
 };
 
 /**
@@ -3623,6 +3631,42 @@ int rte_eth_dev_remove_flex_filter(uint8_t port_id, uint16_t index);
 int rte_eth_dev_get_flex_filter(uint8_t port_id, uint16_t index,
                        struct rte_flex_filter *filter, uint16_t *rx_queue);
 
+/**
+ * Check whether the filter type is supported on an Ethernet device.
+ * All the supported filter types are defined in 'rte_eth_ctrl.h'.
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param filter_type
+ *   Filter type.
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support this filter type.
+ *   - (-ENODEV) if *port_id* invalid.
+ */
+int rte_eth_dev_filter_supported(uint8_t port_id, enum rte_filter_type filter_type);
+
+/**
+ * Take operations to assigned filter type on an Ethernet device.
+ * All the supported operations and filter types are defined in 'rte_eth_ctrl.h'.
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param filter_type
+ *   Filter type.
+ * @param filter_op
+ *   Type of operation.
+ * @param arg
+ *   A pointer to arguments defined specifically for the operation.
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_eth_dev_filter_ctrl(uint8_t port_id, enum rte_filter_type filter_type,
+                       enum rte_filter_op filter_op, void *arg);
+
 #ifdef __cplusplus
 }
 #endif