Spdk/examples/interrupt_tgt/interrupt_tgt.c
Jim Harris 488570ebd4 Replace most BSD 3-clause license text with SPDX identifier.
Many open source projects have moved to using SPDX identifiers
to specify license information, reducing the amount of
boilerplate code in every source file.  This patch replaces
the bulk of SPDK .c, .cpp and Makefiles with the BSD-3-Clause
identifier.

Almost all of these files share the exact same license text,
and this patch only modifies the files that contain the
most common license text.  There can be slight variations
because the third clause contains company names - most say
"Intel Corporation", but there are instances for Nvidia,
Samsung, Eideticom and even "the copyright holder".

Used a bash script to automate replacement of the license text
with SPDX identifier which is checked into scripts/spdx.sh.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Iaa88ab5e92ea471691dc298cfe41ebfb5d169780
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/12904
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Dong Yi <dongx.yi@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: <qun.wan@intel.com>
2022-06-09 07:35:12 +00:00

133 lines
3.2 KiB
C

/* SPDX-License-Identifier: BSD-3-Clause
* Copyright (c) Intel Corporation.
* All rights reserved.
*/
#include "spdk/stdinc.h"
#include "spdk/conf.h"
#include "spdk/event.h"
#include "spdk/vhost.h"
#include "spdk/json.h"
#include "spdk/jsonrpc.h"
#include "spdk/rpc.h"
#include "spdk/env.h"
#include "spdk_internal/event.h"
struct rpc_reactor_set_interrupt_mode {
int32_t lcore;
bool disable_interrupt;
};
static const struct spdk_json_object_decoder rpc_reactor_set_interrupt_mode_decoders[] = {
{"lcore", offsetof(struct rpc_reactor_set_interrupt_mode, lcore), spdk_json_decode_int32},
{"disable_interrupt", offsetof(struct rpc_reactor_set_interrupt_mode, disable_interrupt), spdk_json_decode_bool},
};
static void
rpc_reactor_set_interrupt_mode_cb(void *cb_arg)
{
struct spdk_jsonrpc_request *request = cb_arg;
SPDK_NOTICELOG("complete reactor switch\n");
spdk_jsonrpc_send_bool_response(request, true);
}
static void
rpc_reactor_set_interrupt_mode(struct spdk_jsonrpc_request *request,
const struct spdk_json_val *params)
{
struct rpc_reactor_set_interrupt_mode req = {};
int rc;
if (spdk_json_decode_object(params, rpc_reactor_set_interrupt_mode_decoders,
SPDK_COUNTOF(rpc_reactor_set_interrupt_mode_decoders),
&req)) {
SPDK_ERRLOG("spdk_json_decode_object failed\n");
spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
"spdk_json_decode_object failed");
return;
}
if (!spdk_interrupt_mode_is_enabled()) {
SPDK_ERRLOG("Interrupt mode is not set when staring the application\n");
spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
"spdk_json_decode_object failed");
return;
}
SPDK_NOTICELOG("RPC Start to %s interrupt mode on reactor %d.\n",
req.disable_interrupt ? "disable" : "enable", req.lcore);
if (req.lcore >= (int64_t)spdk_env_get_first_core() &&
req.lcore <= (int64_t)spdk_env_get_last_core()) {
rc = spdk_reactor_set_interrupt_mode(req.lcore, !req.disable_interrupt,
rpc_reactor_set_interrupt_mode_cb, request);
if (rc) {
goto err;
}
} else {
goto err;
}
return;
err:
spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
"Invalid parameters");
}
/* private */ SPDK_RPC_REGISTER("reactor_set_interrupt_mode", rpc_reactor_set_interrupt_mode,
SPDK_RPC_RUNTIME)
static void
interrupt_tgt_usage(void)
{
printf(" -E Set interrupt mode\n");
printf(" -S <path> directory where to create vhost sockets (default: pwd)\n");
}
static int
interrupt_tgt_parse_arg(int ch, char *arg)
{
switch (ch) {
case 'S':
spdk_vhost_set_socket_path(arg);
break;
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, sizeof(opts));
opts.name = "interrupt_tgt";
if ((rc = spdk_app_parse_args(argc, argv, &opts, "S: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;
}