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interrupt: add interrupt_tgt app

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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: Liu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4271
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
This commit is contained in:
Liu Xiaodong 2020-09-16 16:16:10 -04:00 committed by Tomasz Zawadzki
parent 4bf6e4bb32
commit d8618de0df
4 changed files with 141 additions and 0 deletions
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4
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)

1
examples/interrupt_tgt/.gitignore vendored Normal file
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@ -0,0 +1 @@
interrupt_tgt

53
examples/interrupt_tgt/Makefile Normal file
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@ -0,0 +1,53 @@
#
# 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

83
examples/interrupt_tgt/interrupt_tgt.c Normal file
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@ -0,0 +1,83 @@
/*-
* 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;
}