通过nvme_setup_cmd函数初始化命令，并获取command。调用nvme_init_iod函数初始化IO描述符。判断IO请求是否包含物理段，如果包含，则通过nvme_map_data函数进行数据映射。通过这一系列函数的协同作用，Block Layer发送的IO请求能够顺利抵达Device Driver，从而完成整个IO请求处理的过程。2
ret = nvme_setup_write_zeroes(ns, req, cmd); break; case REQ_OP_DISCARD: ret = nvme_setup_discard(ns, req, cmd); break; case REQ_OP_READ: ret = nvme_setup_rw(ns, req, cmd, nvme_cmd_read); break; case REQ_OP_WRITE: ret = nvme_setup_rw(ns, req, cmd, nvme_cmd_write);...
7、不是使用gost安装,需要打开此电脑—微PE工具箱,右键win10系统iso镜像,选择【装载】,如果没有装载,右键—打开方式—资源管理器; 8、win10PE可以直接打开ISO镜像,不要运行根目录的setup,而是进入sources目录; 9、找到sources目录下的setup.exe,双击打开; 10、运行安装界面,安装语言、输入法默认即可,点击下一步; ...
1)把预先注好驱动的win7.iso解压到u盘中,进入解压的文件夹,双击setup.exe进入win7的安装界面 2)下一步-现在安装-接受许可条款-自定义,选择磁盘1(我的pe将NVME认成了磁盘1,所以我选磁盘1,您的电脑情况可能和我不同,注意自行指定好) 3)注意这一步很关键,重新分区并由win7建好MBR引导记录。(网上搜到的教程...
data ib_dma_mapping_error ib_dma_sync_single_for_cpu nvme_setup_cmd nvme_start_request(rq) nvme_rdma_map_data ib_dma_sync_single_for_device nvme_rdma_post_send <- drivers/nvme/host/rdma.c ib_post_send nvmf_rdma_request_process ... do -> loop switch (rdma_req->state) case RDMA_...
ret = nvme_setup_cmd(ns, req, cmnd);if(ret)returnret;if(blk_rq_nr_phys_segments(req)) { ret = nvme_map_data(dev, req, cmnd);if(ret)gotoout_free_cmd; }if(blk_integrity_rq(req)) { ret = nvme_map_metadata(dev, req, cmnd);if(ret)gotoout_unmap_data; ...
(int, dev->q_depth, BLK_MQ_MAX_DEPTH) - 1; dev->tagset.cmd_size = nvme_cmd_size(dev); dev->tagset.flags = BLK_MQ_F_SHOULD_MERGE; dev->tagset.driver_data = dev; //不要被这个接口名误导,其实不是申请tag_set,只是进一步申请tag_set中的tags,并初始化,主要是建立硬件队列和CPU的映射,...
Nvme_setup_prp_pools用来创建dma时所用的内存池,prp_page_pool是虚拟内核地址, static int nvme_setup_prp_pools(structnvme_dev *dev) { structdevice*dmadev = &dev->pci_dev->dev; dev->prp_page_pool =dma_pool_create("prp listpage", dmadev, ...
（分区操作:鼠标移动到左下角四个方块处右键点击→选择运行选项→输入CMD按enter→输入diskpart按enter→...
::nvme_setup_cmd:entry { this->req = (struct request *) arg1; cmnd[this->req] = (struct nvme_command *)arg2; (this->req->rq_disk != NULL ) ? nvme_req_starttime[this->req] = timestamp : 0; } ::nvme_complete_rq:entry ...