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bdev: Add rpc interface for nvme

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Change-Id: I0de3c68dc3a02559ca5f302aa541a91ffb1ddb42
Signed-off-by: Cunyin Chang <cunyin.chang@intel.com>
This commit is contained in:
Cunyin Chang 2016-10-10 11:58:17 +08:00
parent 1fad9da400
commit 9d15f4bfcc
2 changed files with 103 additions and 1 deletions
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2
lib/bdev/nvme/Makefile
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@ -35,7 +35,7 @@ SPDK_ROOT_DIR := $(abspath $(CURDIR)/../../..)
include $(SPDK_ROOT_DIR)/mk/spdk.common.mk
CFLAGS += $(ENV_CFLAGS) -I$(SPDK_ROOT_DIR)/lib/bdev/
C_SRCS = blockdev_nvme.c
C_SRCS = blockdev_nvme.c blockdev_nvme_rpc.c
LIBNAME = bdev_nvme
include $(SPDK_ROOT_DIR)/mk/spdk.lib.mk

102
lib/bdev/nvme/blockdev_nvme_rpc.c Normal file
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@ -0,0 +1,102 @@
/*-
* 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 "blockdev_nvme.h"
#include "spdk/log.h"
#include "spdk/rpc.h"
struct rpc_construct_nvme {
char *pci_address;
};
static void
free_rpc_construct_nvme(struct rpc_construct_nvme *req)
{
free(req->pci_address);
}
static const struct spdk_json_object_decoder rpc_construct_nvme_decoders[] = {
{"pci_address", offsetof(struct rpc_construct_nvme, pci_address), spdk_json_decode_string},
};
static void
spdk_rpc_construct_nvme_bdev(struct spdk_jsonrpc_server_conn *conn,
const struct spdk_json_val *params,
const struct spdk_json_val *id)
{
struct rpc_construct_nvme req = {};
struct spdk_json_write_ctx *w;
struct nvme_probe_ctx ctx = {};
unsigned int domain, bus, dev, func;
int rc;
if (spdk_json_decode_object(params, rpc_construct_nvme_decoders,
sizeof(rpc_construct_nvme_decoders) / sizeof(*rpc_construct_nvme_decoders),
&req)) {
SPDK_TRACELOG(SPDK_TRACE_DEBUG, "spdk_json_decode_object failed\n");
goto invalid;
}
ctx.controllers_remaining = 1;
ctx.num_whitelist_controllers = 1;
rc = sscanf(req.pci_address, "%x:%x:%x.%x", &domain, &bus, &dev, &func);
if (rc != 4) {
goto invalid;
}
ctx.whitelist[0].domain = domain;
ctx.whitelist[0].bus = bus;
ctx.whitelist[0].dev = dev;
ctx.whitelist[0].func = func;
if (spdk_bdev_nvme_create(&ctx)) {
goto invalid;
}
free_rpc_construct_nvme(&req);
if (id == NULL) {
return;
}
w = spdk_jsonrpc_begin_result(conn, id);
spdk_json_write_bool(w, true);
spdk_jsonrpc_end_result(conn, w);
return;
invalid:
spdk_jsonrpc_send_error_response(conn, id, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
free_rpc_construct_nvme(&req);
}
SPDK_RPC_REGISTER("construct_nvme_bdev", spdk_rpc_construct_nvme_bdev)