/*-
* 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
* * 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
*/
#include <rte_pci.h>
-#include <rte_mbuf.h>
+#include <rte_memory.h>
+#include <rte_mempool.h>
#include <exec-env/rte_kni_common.h>
#endif
struct rte_kni;
+struct rte_mbuf;
/**
* Structure which has the function pointers for KNI interface.
uint8_t force_bind : 1; /* Flag to bind kernel thread */
};
+/**
+ * Initialize and preallocate KNI subsystem
+ *
+ * This function is to be executed on the MASTER lcore only, after EAL
+ * initialization and before any KNI interface is attempted to be
+ * allocated
+ *
+ * @param max_kni_ifaces
+ * The maximum number of KNI interfaces that can coexist concurrently
+ */
+extern void rte_kni_init(unsigned int max_kni_ifaces);
+
+
/**
* Allocate KNI interface according to the port id, mbuf size, mbuf pool,
* configurations and callbacks for kernel requests.The KNI interface created
* in the kernel space is the net interface the traditional Linux application
* talking to.
*
+ * The rte_kni_alloc shall not be called before rte_kni_init() has been
+ * called. rte_kni_alloc is thread safe.
+ *
* @param pktmbuf_pool
* The mempool for allocting mbufs for packets.
* @param conf
* paired KNI interface in kernel space. All processing on the specific KNI
* context need to be stopped before calling this interface.
*
+ * rte_kni_release is thread safe.
+ *
* @param kni
- * The pointer to the context of an existant KNI interface.
+ * The pointer to the context of an existent KNI interface.
*
* @return
* - 0 indicates success.
extern int rte_kni_release(struct rte_kni *kni);
/**
- * It is used to handle the request mbufs sent from kernel space.
+ * It is used to handle the request mbufs sent from kernel space.
* Then analyzes it and calls the specific actions for the specific requests.
* Finally constructs the response mbuf and puts it back to the resp_q.
*
* @param kni
- * The pointer to the context of an existant KNI interface.
+ * The pointer to the context of an existent KNI interface.
*
* @return
- * - 0
+ * - 0
* - negative value indicates failure.
*/
extern int rte_kni_handle_request(struct rte_kni *kni);
*/
extern struct rte_kni *rte_kni_get(const char *name);
+/**
+ * Get the name given to a KNI device
+ *
+ * @param kni
+ * The KNI instance to query
+ * @return
+ * The pointer to the KNI name
+ */
+extern const char *rte_kni_get_name(const struct rte_kni *kni);
+
/**
* Get the KNI context of the specific port.
*
* @param port_id
* the port id.
*
- * @return
+ * @return
* On success: Pointer to KNI interface.
* On failure: NULL
*/
* Register KNI request handling for a specified port,and it can
* be called by master process or slave process.
*
- * @param kni
- * pointer to struct rte_kni.
- * @param ops
+ * @param kni
+ * pointer to struct rte_kni.
+ * @param ops
* ponter to struct rte_kni_ops.
*
* @return
/**
* Unregister KNI request handling for a specified port.
- *
- * @param kni
- * pointer to struct rte_kni.
+ *
+ * @param kni
+ * pointer to struct rte_kni.
*
* @return
* On success: 0
extern int rte_kni_unregister_handlers(struct rte_kni *kni);
/**
- * close KNI device.
- *
- * @param void
- *
- * @return
- * void
+ * Close KNI device.
*/
extern void rte_kni_close(void);
#endif
#endif /* _RTE_KNI_H_ */
-