Spdk/examples/interrupt_tgt/interrupt_tgt.c
paul luse a6dbe3721e update Intel copyright notices
per Intel policy to include file commit date using git cmd
below.  The policy does not apply to non-Intel (C) notices.

git log --follow -C90% --format=%ad --date default <file> | tail -1

and then pull just the 4 digit year from the result.

Intel copyrights were not added to files where Intel either had
no contribution ot the contribution lacked substance (ie license
header updates, formatting changes, etc).  Contribution date used
"--follow -C95%" to get the most accurate date.

Note that several files in this patch didn't end the license/(c)
block with a blank comment line so these were added as the vast
majority of files do have this last blank line.  Simply there for
consistency.

Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: Id5b7ce4f658fe87132f14139ead58d6e285c04d4
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15192
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Community-CI: Mellanox Build Bot
2022-11-10 08:28:53 +00:00

133 lines
3.3 KiB
C

/* SPDX-License-Identifier: BSD-3-Clause
* Copyright (C) 2020 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;
}