spdk_nvme_ctrlr_cmd_get_log_page spdk_nvme_ctrlr_process_admin_completions spdk_nvme_ctrlr_free_cmb_io_buffer spdk_nvme_ctrlr_get_first_active_ns spdk_nvme_ctrlr_get_next_active_ns spdk_nvme_ctrlr_get_num_ns spdk_nvme_ctrlr_get_ns spdk_nvme_ctrlr_get_data spdk_nvme_ctrlr_get_pc...
但它给了SPDK直接访问nvme设备的能力,后续的初始化和命令下发都由spdk负责。所以spdk访问NVMe SSD的调用基本上都是和nvme命令对应的,如admin cmd spdk_nvme_ctrlr_cmd_set_feature、spdk_nvme_ctrlr_cmd_get_log_page,和io cmd spdk_nvme_ctrlr_alloc_io_qpair、spdk_nvme_ns_cmd_read等等。当然,iouring的...
A new family of functions, spdk_nvme_ns_compare*, give the user access to submitting compare commands to NVMe namespaces.A new function, spdk_nvme_ctrlr_cmd_get_log_page_ext, gives users more granular control over the command dwords sent in log page requests....
New API spdk_nvme_ctrlr_get_memory_domains has been added, it allows to get SPDK memory domains used by nvme controller. New API functions spdk_nvme_ns_cmd_readv_ext and spdk_nvme_ns_cmd_writev_ext have been added. These functions accept spdk_nvme_ns_cmd_ext_io_opts structure with ext...
spdk_nvme_cmd_cb cb_fn; void *cb_arg; STAILQ_ENTRY(nvme_request) stailq; struct spdk_nvme_qpair *qpair; /* * The value of spdk_get_ticks() when the request was submitted to the hardware.* Only set if ctrlr->timeout_enabled is true....
opcode = nvme_admin_get_log_page -> return ioctl(fd, ioctl_cmd, cmd) -> 管理命令: nvme_admin_get_log_page = 0x02 enum nvme_admin_opcode nvme管理命令 -> linux/nvme.h nvme_submit_admin_passthru ioctl(fd, NVME_IOCTL_ADMIN_CMD, cmd) -> 转到内核驱动处理 -> nvme_dev_ioctl remove_...
所以spdk访问NVMe SSD的调用基本上都是和nvme命令对应的,如admin cmd spdk_nvme_ctrlr_cmd_set_feature、spdk_nvme_ctrlr_cmd_get_log_page,和io cmd spdk_nvme_ctrlr_alloc_io_qpair、spdk_nvme_ns_cmd_read等等。当然,iouring的sq和cq已经和这里nvme的交互方式比较相似了:)...
一. SPDK NVMe-oF target 启动和销毁的过程 SPDK NVMe-oF target的主程序位于 (spdk/app/nvmf_tgt) 目录中,可以看到有个文件命名为nvme_main.c. 仔细一看相关的main函数,似乎也没做什么,只是调用了spdk_app_opts_init, 初始化了一下相应的参数; 然后调用了一下spdk_app_parse_args,用于解析命令行的相应参数...
spdk_nvme_ctrlr_cmd_security_send() and spdk_nvme_ctrlr_cmd_security_receive() were added to support sending or receiving security protocol data to or from nvme controller. spdk_nvme_ns_get_extended_sector_size() was added. This function includes ...
SPDK NVMe-oF target的主程序位于 (spdk/app/nvmf_tgt) 目录中,大家可以看到有个文件命名为nvmf_main.c. 仔细一看相关的main函数,似乎也没做什么,只是调用了spdk_app_opts_init, 初始化了一下相应的参数; 然后调用了一下spdk_app_parse_args,用于解析命令行的相应参数。 接着调用了一下spdk_app_start, 如果...