Commit 7ae63b0d authored by Jim Harris's avatar Jim Harris Committed by Daniel Verkamp
Browse files

net: add spdk_net_impl 



This is the framework for providing multiple implementations
of TCP sockets in a single application.  This patch just
adds the framework - upcoming patches will convert the
existing POSIX implementation to use this framework.

Signed-off-by: default avatarJim Harris <james.r.harris@intel.com>
Change-Id: I07951e71f344dfe7689c818a13d7e7113c826643

Reviewed-on: https://review.gerrithub.io/400334


Tested-by: default avatarSPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: default avatarTomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: default avatarDaniel Verkamp <daniel.verkamp@intel.com>
parent 815c0bdb

include/spdk_internal/sock.h

0 → 100644
+90 −0
Original line number Diff line number Diff line 
/*-

 *   BSD LICENSE

 *

 *   Copyright (c) Intel Corporation.

 *   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.

 */



/** \file

 * TCP network implementation abstraction layer

 */



#ifndef SPDK_INTERNAL_SOCK_H

#define SPDK_INTERNAL_SOCK_H



#include "spdk/stdinc.h"

#include "spdk/sock.h"

#include "spdk/queue.h"



#ifdef __cplusplus

extern "C" {

#endif



struct spdk_sock_group_impl;



struct spdk_net_impl {

	const char *name;



	int (*getaddr)(struct spdk_sock *sock, char *saddr, int slen, char *caddr, int clen);

	struct spdk_sock *(*connect)(const char *ip, int port);

	struct spdk_sock *(*listen)(const char *ip, int port);

	struct spdk_sock *(*accept)(struct spdk_sock *sock);

	int (*close)(struct spdk_sock *sock);

	ssize_t (*recv)(struct spdk_sock *sock, void *buf, size_t len);

	ssize_t (*writev)(struct spdk_sock *sock, struct iovec *iov, int iovcnt);



	int (*set_recvlowat)(struct spdk_sock *sock, int nbytes);

	int (*set_recvbuf)(struct spdk_sock *sock, int sz);

	int (*set_sendbuf)(struct spdk_sock *sock, int sz);



	bool (*is_ipv6)(struct spdk_sock *sock);

	bool (*is_ipv4)(struct spdk_sock *sock);



	struct spdk_sock_group *(*group_create)(void);

	int (*group_add_sock)(struct spdk_sock_group *group, struct spdk_sock *sock);

	int (*group_remove_sock)(struct spdk_sock_group *group, struct spdk_sock *sock);

	int (*group_poll)(struct spdk_sock_group *group, int max_events, struct spdk_sock **socks);

	int (*group_close)(struct spdk_sock_group *group);



	STAILQ_ENTRY(spdk_net_impl) link;

};



void spdk_net_impl_register(struct spdk_net_impl *impl);



#define SPDK_NET_IMPL_REGISTER(name, impl) \

static void __attribute__((constructor)) net_impl_register_##name(void) \

{ \

	spdk_net_impl_register(impl); \

}



#ifdef __cplusplus

}

#endif



#endif /* SPDK_INTERNAL_SOCK_H */

lib/net/sock.c

+9 −0
Original line number Diff line number Diff line
@@ -41,6 +41,7 @@ 


#include "spdk/log.h"

#include "spdk/sock.h"

#include "spdk_internal/sock.h"

#include "spdk/queue.h"



#define MAX_TMPBUF 1024
@@ -48,6 +49,8 @@ 


#define MAX_EVENTS_PER_POLL 32



STAILQ_HEAD(, spdk_net_impl) g_net_impls = STAILQ_HEAD_INITIALIZER(g_net_impls);



struct spdk_sock {

	spdk_sock_cb		cb_fn;

	void			*cb_arg;
@@ -773,3 +776,9 @@ spdk_sock_group_close(struct spdk_sock_group **group) 


	return rc;

}



void

spdk_net_impl_register(struct spdk_net_impl *impl)

{

	STAILQ_INSERT_TAIL(&g_net_impls, impl, link);

}