diff options
Diffstat (limited to 'src/spdk/module/bdev/virtio/bdev_virtio_rpc.c')
| -rw-r--r-- | src/spdk/module/bdev/virtio/bdev_virtio_rpc.c | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/src/spdk/module/bdev/virtio/bdev_virtio_rpc.c b/src/spdk/module/bdev/virtio/bdev_virtio_rpc.c new file mode 100644 index 000000000..3c3c276eb --- /dev/null +++ b/src/spdk/module/bdev/virtio/bdev_virtio_rpc.c @@ -0,0 +1,264 @@ +/*- + * 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 "spdk/stdinc.h" + +#include "spdk/string.h" +#include "spdk/rpc.h" +#include "spdk/util.h" +#include "spdk_internal/log.h" + +#include "bdev_virtio.h" + +#define SPDK_VIRTIO_USER_DEFAULT_VQ_COUNT 1 +#define SPDK_VIRTIO_USER_DEFAULT_QUEUE_SIZE 512 + +struct rpc_remove_virtio_dev { + char *name; +}; + +static const struct spdk_json_object_decoder rpc_remove_virtio_dev[] = { + {"name", offsetof(struct rpc_remove_virtio_dev, name), spdk_json_decode_string }, +}; + +static void +rpc_bdev_virtio_detach_controller_cb(void *ctx, int errnum) +{ + struct spdk_jsonrpc_request *request = ctx; + struct spdk_json_write_ctx *w; + + if (errnum != 0) { + spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, + spdk_strerror(-errnum)); + return; + } + + w = spdk_jsonrpc_begin_result(request); + spdk_json_write_bool(w, true); + spdk_jsonrpc_end_result(request, w); +} + +static void +rpc_bdev_virtio_detach_controller(struct spdk_jsonrpc_request *request, + const struct spdk_json_val *params) +{ + struct rpc_remove_virtio_dev req = {NULL}; + int rc = 0; + + if (spdk_json_decode_object(params, rpc_remove_virtio_dev, + SPDK_COUNTOF(rpc_remove_virtio_dev), + &req)) { + spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, + "spdk_json_decode_object failed"); + goto cleanup; + } + + rc = bdev_virtio_blk_dev_remove(req.name, rpc_bdev_virtio_detach_controller_cb, request); + if (rc == -ENODEV) { + rc = bdev_virtio_scsi_dev_remove(req.name, rpc_bdev_virtio_detach_controller_cb, request); + } + + if (rc != 0) { + spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc)); + } + +cleanup: + free(req.name); +} +SPDK_RPC_REGISTER("bdev_virtio_detach_controller", + rpc_bdev_virtio_detach_controller, SPDK_RPC_RUNTIME) +SPDK_RPC_REGISTER_ALIAS_DEPRECATED(bdev_virtio_detach_controller, remove_virtio_bdev) + +static void +rpc_bdev_virtio_scsi_get_devices(struct spdk_jsonrpc_request *request, + const struct spdk_json_val *params) +{ + struct spdk_json_write_ctx *w; + + if (params != NULL) { + spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, + "bdev_virtio_scsi_get_devices requires no parameters"); + return; + } + + w = spdk_jsonrpc_begin_result(request); + bdev_virtio_scsi_dev_list(w); + spdk_jsonrpc_end_result(request, w); +} +SPDK_RPC_REGISTER("bdev_virtio_scsi_get_devices", + rpc_bdev_virtio_scsi_get_devices, SPDK_RPC_RUNTIME) +SPDK_RPC_REGISTER_ALIAS_DEPRECATED(bdev_virtio_scsi_get_devices, get_virtio_scsi_devs) + +struct rpc_bdev_virtio_attach_controller_ctx { + char *name; + char *trtype; + char *traddr; + char *dev_type; + uint32_t vq_count; + uint32_t vq_size; + struct spdk_jsonrpc_request *request; +}; + +static const struct spdk_json_object_decoder rpc_bdev_virtio_attach_controller_ctx[] = { + {"name", offsetof(struct rpc_bdev_virtio_attach_controller_ctx, name), spdk_json_decode_string }, + {"trtype", offsetof(struct rpc_bdev_virtio_attach_controller_ctx, trtype), spdk_json_decode_string }, + {"traddr", offsetof(struct rpc_bdev_virtio_attach_controller_ctx, traddr), spdk_json_decode_string }, + {"dev_type", offsetof(struct rpc_bdev_virtio_attach_controller_ctx, dev_type), spdk_json_decode_string }, + {"vq_count", offsetof(struct rpc_bdev_virtio_attach_controller_ctx, vq_count), spdk_json_decode_uint32, true }, + {"vq_size", offsetof(struct rpc_bdev_virtio_attach_controller_ctx, vq_size), spdk_json_decode_uint32, true }, +}; + +static void +free_rpc_bdev_virtio_attach_controller_ctx(struct rpc_bdev_virtio_attach_controller_ctx *req) +{ + free(req->name); + free(req->trtype); + free(req->traddr); + free(req->dev_type); + free(req); +} + +static void +rpc_create_virtio_dev_cb(void *ctx, int result, struct spdk_bdev **bdevs, size_t cnt) +{ + struct rpc_bdev_virtio_attach_controller_ctx *req = ctx; + struct spdk_json_write_ctx *w; + size_t i; + + if (result) { + spdk_jsonrpc_send_error_response(req->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, + spdk_strerror(-result)); + free_rpc_bdev_virtio_attach_controller_ctx(req); + return; + } + + w = spdk_jsonrpc_begin_result(req->request); + spdk_json_write_array_begin(w); + + for (i = 0; i < cnt; i++) { + spdk_json_write_string(w, spdk_bdev_get_name(bdevs[i])); + } + + spdk_json_write_array_end(w); + spdk_jsonrpc_end_result(req->request, w); + + free_rpc_bdev_virtio_attach_controller_ctx(ctx); +} + +static void +rpc_bdev_virtio_attach_controller(struct spdk_jsonrpc_request *request, + const struct spdk_json_val *params) +{ + struct rpc_bdev_virtio_attach_controller_ctx *req; + struct spdk_bdev *bdev; + struct spdk_pci_addr pci_addr; + bool pci; + int rc; + + req = calloc(1, sizeof(*req)); + if (!req) { + SPDK_ERRLOG("calloc() failed\n"); + spdk_jsonrpc_send_error_response(request, -ENOMEM, spdk_strerror(ENOMEM)); + return; + } + + if (spdk_json_decode_object(params, rpc_bdev_virtio_attach_controller_ctx, + SPDK_COUNTOF(rpc_bdev_virtio_attach_controller_ctx), + req)) { + spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, + "spdk_json_decode_object failed"); + goto cleanup; + } + + if (strcmp(req->trtype, "pci") == 0) { + if (req->vq_count != 0 || req->vq_size != 0) { + SPDK_ERRLOG("VQ count or size is not allowed for PCI transport type\n"); + spdk_jsonrpc_send_error_response(request, EINVAL, + "vq_count or vq_size is not allowed for PCI transport type."); + goto cleanup; + } + + if (spdk_pci_addr_parse(&pci_addr, req->traddr) != 0) { + SPDK_ERRLOG("Invalid PCI address '%s'\n", req->traddr); + spdk_jsonrpc_send_error_response_fmt(request, EINVAL, "Invalid PCI address '%s'", req->traddr); + goto cleanup; + } + + pci = true; + } else if (strcmp(req->trtype, "user") == 0) { + req->vq_count = req->vq_count == 0 ? SPDK_VIRTIO_USER_DEFAULT_VQ_COUNT : req->vq_count; + req->vq_size = req->vq_size == 0 ? SPDK_VIRTIO_USER_DEFAULT_QUEUE_SIZE : req->vq_size; + pci = false; + } else { + SPDK_ERRLOG("Invalid trtype '%s'\n", req->trtype); + spdk_jsonrpc_send_error_response_fmt(request, EINVAL, "Invalid trtype '%s'", req->trtype); + goto cleanup; + } + + req->request = request; + if (strcmp(req->dev_type, "blk") == 0) { + if (pci) { + bdev = bdev_virtio_pci_blk_dev_create(req->name, &pci_addr); + } else { + bdev = bdev_virtio_user_blk_dev_create(req->name, req->traddr, req->vq_count, req->vq_size); + } + + /* Virtio blk doesn't use callback so call it manually to send result. */ + rc = bdev ? 0 : -EINVAL; + rpc_create_virtio_dev_cb(req, rc, &bdev, bdev ? 1 : 0); + } else if (strcmp(req->dev_type, "scsi") == 0) { + if (pci) { + rc = bdev_virtio_pci_scsi_dev_create(req->name, &pci_addr, rpc_create_virtio_dev_cb, req); + } else { + rc = bdev_virtio_user_scsi_dev_create(req->name, req->traddr, req->vq_count, req->vq_size, + rpc_create_virtio_dev_cb, req); + } + + if (rc < 0) { + /* In case of error callback is not called so do it manually to send result. */ + rpc_create_virtio_dev_cb(req, rc, NULL, 0); + } + } else { + SPDK_ERRLOG("Invalid dev_type '%s'\n", req->dev_type); + spdk_jsonrpc_send_error_response_fmt(request, EINVAL, "Invalid dev_type '%s'", req->dev_type); + goto cleanup; + } + + return; + +cleanup: + free_rpc_bdev_virtio_attach_controller_ctx(req); +} +SPDK_RPC_REGISTER("bdev_virtio_attach_controller", + rpc_bdev_virtio_attach_controller, SPDK_RPC_RUNTIME); +SPDK_RPC_REGISTER_ALIAS_DEPRECATED(bdev_virtio_attach_controller, construct_virtio_dev) |