Commit d8618de0 authored by Liu Xiaodong's avatar Liu Xiaodong Committed by Tomasz Zawadzki
Browse files

interrupt: add interrupt_tgt app 



interrupt_tgt is similar with vhost_tgt, but it is constructed by
libaries supporting event interrupt mode with interrupt functions.
Some basic bdev libraries are linked in it.

"interrupt_tgt -E" will run the app in interrupt mode.
At start, it can work with SPDK RPC methods.

Change-Id: I3a9b253a4657758fc670af835e5bed5e53f412dc
Signed-off-by: default avatarLiu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4271


Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
parent 4bf6e4bb

examples/Makefile

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@@ -36,6 +36,10 @@ include $(SPDK_ROOT_DIR)/mk/spdk.common.mk 


DIRS-y += accel bdev blob ioat nvme sock vmd nvmf



ifeq ($(OS),Linux)

DIRS-y += interrupt_tgt

endif



.PHONY: all clean $(DIRS-y)



all: $(DIRS-y)

examples/interrupt_tgt/.gitignore

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+1 −0
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interrupt_tgt

examples/interrupt_tgt/Makefile

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#

#  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.

#



SPDK_ROOT_DIR := $(abspath $(CURDIR)/../..)

include $(SPDK_ROOT_DIR)/mk/spdk.common.mk

include $(SPDK_ROOT_DIR)/mk/spdk.modules.mk



APP = interrupt_tgt



C_SRCS := interrupt_tgt.c



# Basic libaries to support spdk application

SPDK_LIB_LIST += event thread

SPDK_LIB_LIST += jsonrpc json rpc trace conf util log

# Basic bdev libraries

SPDK_LIB_LIST += bdev notify accel vmd sock

SPDK_LIB_LIST += $(EVENT_BDEV_SUBSYSTEM) # event_bdev depends on some other event modules, but they dont support edriven yet



ifeq ($(SPDK_ROOT_DIR)/lib/env_dpdk,$(CONFIG_ENV))

SPDK_LIB_LIST += env_dpdk_rpc

endif



include $(SPDK_ROOT_DIR)/mk/spdk.app.mk

examples/interrupt_tgt/interrupt_tgt.c

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+83 −0
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/*-

 *   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.

 */



#include "spdk/stdinc.h"

#include "spdk/conf.h"

#include "spdk/event.h"



static void

interrupt_tgt_usage(void)

{

	printf(" -E                        Set interrupt mode\n");

}



static int

interrupt_tgt_parse_arg(int ch, char *arg)

{

	switch (ch) {

	case 'E':

		spdk_interrupt_mode_enable();

		break;

	default:

		return -EINVAL;

	}

	return 0;

}



static void

interrupt_tgt_started(void *arg1)

{

}



int

main(int argc, char *argv[])

{

	struct spdk_app_opts opts = {};

	int rc;



	spdk_app_opts_init(&opts);

	opts.name = "interrupt_tgt";



	if ((rc = spdk_app_parse_args(argc, argv, &opts, "E", NULL,

				      interrupt_tgt_parse_arg, interrupt_tgt_usage)) !=

	    SPDK_APP_PARSE_ARGS_SUCCESS) {

		exit(rc);

	}



	/* Blocks until the application is exiting */

	rc = spdk_app_start(&opts, interrupt_tgt_started, NULL);



	spdk_app_fini();



	return rc;

}