4cbd23e28b
Added a new RPC, vmd_rescan, that forces the VMD driver to do a rescan of all devices behind the VMD. A device that was previously removed via spdk_vmd_remove_device() will be found again during vmd_rescan. Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com> Change-Id: Ide87eb44c1d6d524234820dc07c78ba5b8bcd3ad Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13958 Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Tom Nabarro <tom.nabarro@intel.com> Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
97 lines
2.5 KiB
C
97 lines
2.5 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
|
|
* Copyright (c) Intel Corporation.
|
|
* All rights reserved.
|
|
*/
|
|
|
|
#include "spdk/vmd.h"
|
|
|
|
#include "spdk/env.h"
|
|
#include "spdk/rpc.h"
|
|
#include "spdk/string.h"
|
|
#include "spdk/util.h"
|
|
|
|
#include "spdk/log.h"
|
|
#include "event_vmd.h"
|
|
|
|
static void
|
|
rpc_vmd_enable(struct spdk_jsonrpc_request *request, const struct spdk_json_val *params)
|
|
{
|
|
vmd_subsystem_enable();
|
|
|
|
spdk_jsonrpc_send_bool_response(request, true);
|
|
}
|
|
SPDK_RPC_REGISTER("vmd_enable", rpc_vmd_enable, SPDK_RPC_STARTUP)
|
|
SPDK_RPC_REGISTER_ALIAS_DEPRECATED(vmd_enable, enable_vmd)
|
|
|
|
struct rpc_vmd_remove_device {
|
|
char *addr;
|
|
};
|
|
|
|
static const struct spdk_json_object_decoder rpc_vmd_remove_device_decoders[] = {
|
|
{"addr", offsetof(struct rpc_vmd_remove_device, addr), spdk_json_decode_string},
|
|
};
|
|
|
|
static void
|
|
rpc_vmd_remove_device(struct spdk_jsonrpc_request *request, const struct spdk_json_val *params)
|
|
{
|
|
struct rpc_vmd_remove_device req = {};
|
|
struct spdk_pci_addr addr;
|
|
int rc;
|
|
|
|
if (!vmd_subsystem_is_enabled()) {
|
|
spdk_jsonrpc_send_error_response(request, -EPERM, "VMD subsystem is disabled");
|
|
return;
|
|
}
|
|
|
|
rc = spdk_json_decode_object(params, rpc_vmd_remove_device_decoders,
|
|
SPDK_COUNTOF(rpc_vmd_remove_device_decoders),
|
|
&req);
|
|
if (rc != 0) {
|
|
spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
|
|
"spdk_json_decode_object failed");
|
|
return;
|
|
}
|
|
|
|
rc = spdk_pci_addr_parse(&addr, req.addr);
|
|
if (rc != 0) {
|
|
spdk_jsonrpc_send_error_response(request, -EINVAL, "Failed to parse PCI address");
|
|
goto out;
|
|
}
|
|
|
|
rc = spdk_vmd_remove_device(&addr);
|
|
if (rc != 0) {
|
|
spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
|
|
goto out;
|
|
}
|
|
|
|
spdk_jsonrpc_send_bool_response(request, true);
|
|
out:
|
|
free(req.addr);
|
|
}
|
|
SPDK_RPC_REGISTER("vmd_remove_device", rpc_vmd_remove_device, SPDK_RPC_RUNTIME)
|
|
|
|
static void
|
|
rpc_vmd_rescan(struct spdk_jsonrpc_request *request, const struct spdk_json_val *params)
|
|
{
|
|
struct spdk_json_write_ctx *w;
|
|
int rc;
|
|
|
|
if (!vmd_subsystem_is_enabled()) {
|
|
spdk_jsonrpc_send_error_response(request, -EPERM, "VMD subsystem is disabled");
|
|
return;
|
|
}
|
|
|
|
rc = spdk_vmd_rescan();
|
|
if (rc < 0) {
|
|
spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
|
|
return;
|
|
}
|
|
|
|
w = spdk_jsonrpc_begin_result(request);
|
|
spdk_json_write_object_begin(w);
|
|
spdk_json_write_named_uint32(w, "count", (uint32_t)rc);
|
|
spdk_json_write_object_end(w);
|
|
spdk_jsonrpc_end_result(request, w);
|
|
}
|
|
SPDK_RPC_REGISTER("vmd_rescan", rpc_vmd_rescan, SPDK_RPC_RUNTIME)
|