numam-spdk/lib/bdev/rpc/bdev_rpc.c
Daniel Verkamp e1baabee4a bdev: add get_bdevs RPC
Add an RPC interface to list all blockdevs and their properties.

Change-Id: I50db730d5eff8cffcbe8fe5df6b3461457e8581e
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-11-02 09:10:54 -07:00

84 lines
2.8 KiB
C

/*-
* 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
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* * 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
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*/
#include "spdk/bdev.h"
#include "spdk/log.h"
#include "spdk/rpc.h"
static void
spdk_rpc_get_bdevs(struct spdk_jsonrpc_server_conn *conn,
const struct spdk_json_val *params,
const struct spdk_json_val *id)
{
struct spdk_json_write_ctx *w;
struct spdk_bdev *bdev;
if (params != NULL) {
spdk_jsonrpc_send_error_response(conn, id, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
"get_bdevs requires no parameters");
return;
}
if (id == NULL) {
return;
}
w = spdk_jsonrpc_begin_result(conn, id);
spdk_json_write_array_begin(w);
for (bdev = spdk_bdev_first(); bdev != NULL; bdev = spdk_bdev_next(bdev)) {
spdk_json_write_object_begin(w);
spdk_json_write_name(w, "name");
spdk_json_write_string(w, bdev->name);
spdk_json_write_name(w, "product_name");
spdk_json_write_string(w, bdev->product_name);
spdk_json_write_name(w, "block_size");
spdk_json_write_uint32(w, bdev->blocklen);
spdk_json_write_name(w, "num_blocks");
spdk_json_write_uint64(w, bdev->blockcnt);
spdk_json_write_name(w, "claimed");
spdk_json_write_bool(w, bdev->claimed);
spdk_json_write_object_end(w);
}
spdk_json_write_array_end(w);
spdk_jsonrpc_end_result(conn, w);
}
SPDK_RPC_REGISTER("get_bdevs", spdk_rpc_get_bdevs)