diff options
| -rw-r--r-- | cmd/Kconfig | 7 | ||||
| -rw-r--r-- | cmd/Makefile | 1 | ||||
| -rw-r--r-- | cmd/nvme.c | 197 | ||||
| -rw-r--r-- | doc/README.nvme | 36 |
4 files changed, 241 insertions, 0 deletions
diff --git a/cmd/Kconfig b/cmd/Kconfig index 183f93260d..42d955c96a 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -773,6 +773,13 @@ config CMD_NAND_TORTURE endif # CMD_NAND +config CMD_NVME + bool "nvme" + depends on NVME + default y if NVME + help + NVM Express device support + config CMD_MMC_SPI bool "mmc_spi - Set up MMC SPI device" help diff --git a/cmd/Makefile b/cmd/Makefile index 1bf6e3f711..13c86f8fcc 100644 --- a/cmd/Makefile +++ b/cmd/Makefile @@ -105,6 +105,7 @@ obj-$(CONFIG_CMD_REISER) += reiser.o obj-$(CONFIG_CMD_REMOTEPROC) += remoteproc.o obj-$(CONFIG_SANDBOX) += host.o obj-$(CONFIG_CMD_SATA) += sata.o +obj-$(CONFIG_CMD_NVME) += nvme.o obj-$(CONFIG_CMD_SF) += sf.o obj-$(CONFIG_CMD_SCSI) += scsi.o disk.o obj-$(CONFIG_CMD_SHA1SUM) += sha1sum.o diff --git a/cmd/nvme.c b/cmd/nvme.c new file mode 100644 index 0000000000..e1ef95fdf3 --- /dev/null +++ b/cmd/nvme.c @@ -0,0 +1,197 @@ +/* + * Copyright (C) 2017 NXP Semiconductors + * Copyright (C) 2017 Bin Meng <bmeng.cn@gmail.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <command.h> +#include <dm.h> +#include <nvme.h> +#include <part.h> +#include <linux/math64.h> + +static int nvme_curr_device; + +static int do_nvme_scan(cmd_tbl_t *cmdtp, int flag, + int argc, char * const argv[]) +{ + int ret; + + ret = nvme_scan_namespace(); + if (ret) + return CMD_RET_FAILURE; + + return CMD_RET_SUCCESS; +} + +static int do_nvme_list(cmd_tbl_t *cmdtp, int flag, + int argc, char * const argv[]) +{ + blk_list_devices(IF_TYPE_NVME); + + return CMD_RET_SUCCESS; +} + +static int do_nvme_info(cmd_tbl_t *cmdtp, int flag, + int argc, char * const argv[]) +{ + int devnum; + struct udevice *udev; + int ret; + + if (argc > 1) + devnum = (int)simple_strtoul(argv[1], NULL, 10); + else + devnum = nvme_curr_device; + + ret = blk_get_device(IF_TYPE_NVME, devnum, &udev); + if (ret < 0) + return CMD_RET_FAILURE; + + nvme_print_info(udev); + + return CMD_RET_SUCCESS; +} + +static int do_nvme_device(cmd_tbl_t *cmdtp, int flag, + int argc, char * const argv[]) +{ + if (argc > 1) { + int devnum = (int)simple_strtoul(argv[1], NULL, 10); + + if (!blk_show_device(IF_TYPE_NVME, devnum)) { + nvme_curr_device = devnum; + printf("... is now current device\n"); + } else { + return CMD_RET_FAILURE; + } + } else { + blk_show_device(IF_TYPE_NVME, nvme_curr_device); + } + + return CMD_RET_SUCCESS; +} + +static int do_nvme_part(cmd_tbl_t *cmdtp, int flag, + int argc, char * const argv[]) +{ + if (argc > 1) { + int devnum = (int)simple_strtoul(argv[2], NULL, 10); + + if (blk_print_part_devnum(IF_TYPE_NVME, devnum)) { + printf("\nNVMe device %d not available\n", devnum); + return CMD_RET_FAILURE; + } + } else { + blk_print_part_devnum(IF_TYPE_NVME, nvme_curr_device); + } + + return CMD_RET_SUCCESS; +} + +static int do_nvme_read(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + unsigned long time; + if (argc != 4) + return CMD_RET_USAGE; + + ulong addr = simple_strtoul(argv[1], NULL, 16); + ulong cnt = simple_strtoul(argv[3], NULL, 16); + ulong n; + lbaint_t blk = simple_strtoul(argv[2], NULL, 16); + + printf("\nNVMe read: device %d block # " LBAFU " count %ld ... ", + nvme_curr_device, blk, cnt); + + time = get_timer(0); + n = blk_read_devnum(IF_TYPE_NVME, nvme_curr_device, blk, + cnt, (ulong *)addr); + time = get_timer(time); + + printf("read: %s\n", (n == cnt) ? "OK" : "ERROR"); + printf("%lu bytes read in %lu ms", cnt * 512, time); + if (time > 0) { + puts(" ("); + print_size(div_u64(cnt * 512, time) * 1000, "/s"); + puts(")"); + } + puts("\n"); + + return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE; +} + +static int do_nvme_write(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + unsigned long time; + if (argc != 4) + return CMD_RET_USAGE; + + ulong addr = simple_strtoul(argv[1], NULL, 16); + ulong cnt = simple_strtoul(argv[3], NULL, 16); + ulong n; + lbaint_t blk = simple_strtoul(argv[2], NULL, 16); + + printf("\nNVMe write: device %d block # " LBAFU " count %ld ... ", + nvme_curr_device, blk, cnt); + + time = get_timer(0); + n = blk_write_devnum(IF_TYPE_NVME, nvme_curr_device, blk, + cnt, (ulong *)addr); + time = get_timer(time); + + printf("write: %s\n", (n == cnt) ? "OK" : "ERROR"); + printf("%lu bytes write in %lu ms", cnt * 512, time); + if (time > 0) { + puts(" ("); + print_size(div_u64(cnt * 512, time) * 1000, "/s"); + puts(")"); + } + puts("\n"); + + return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE; +} + +static cmd_tbl_t cmd_nvme[] = { + U_BOOT_CMD_MKENT(scan, 1, 1, do_nvme_scan, "", ""), + U_BOOT_CMD_MKENT(list, 1, 1, do_nvme_list, "", ""), + U_BOOT_CMD_MKENT(info, 2, 1, do_nvme_info, "", ""), + U_BOOT_CMD_MKENT(device, 2, 1, do_nvme_device, "", ""), + U_BOOT_CMD_MKENT(part, 2, 1, do_nvme_part, "", ""), + U_BOOT_CMD_MKENT(write, 4, 0, do_nvme_write, "", ""), + U_BOOT_CMD_MKENT(read, 4, 0, do_nvme_read, "", "") +}; + +static int do_nvmecops(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + cmd_tbl_t *cp; + + cp = find_cmd_tbl(argv[1], cmd_nvme, ARRAY_SIZE(cmd_nvme)); + + argc--; + argv++; + + if (cp == NULL || argc > cp->maxargs) + return CMD_RET_USAGE; + + if (flag == CMD_FLAG_REPEAT && !cp->repeatable) + return CMD_RET_SUCCESS; + + return cp->cmd(cmdtp, flag, argc, argv); +} + +U_BOOT_CMD( + nvme, 8, 1, do_nvmecops, + "NVM Express sub-system", + "\nnvme scan - scan NVMe blk devices\n" + "nvme list - show all available NVMe blk devices\n" + "nvme info [dev]- show current or a specific NVMe blk device\n" + "nvme device [dev] - show or set current device\n" + "nvme part [dev] - print partition table\n" + "nvme read addr blk# cnt\n" + "nvme write addr blk# cnt" +); diff --git a/doc/README.nvme b/doc/README.nvme index d2b917d61b..28ecf54000 100644 --- a/doc/README.nvme +++ b/doc/README.nvme @@ -40,3 +40,39 @@ It only support basic block read/write functions in the NVMe driver. Config options -------------- CONFIG_NVME Enable NVMe device support +CONFIG_CMD_NVME Enable basic NVMe commands + +Usage in U-Boot +--------------- +To use an NVMe hard disk from U-Boot shell, a 'nvme scan' command needs to +be executed for all NVMe hard disks attached to the NVMe controller to be +identified. + +To list all of the NVMe hard disks, try: + + => nvme list + Device 0: Vendor: 0x8086 Rev: 8DV10131 Prod: CVFT535600LS400BGN + Type: Hard Disk + Capacity: 381554.0 MB = 372.6 GB (781422768 x 512) + +and print out detailed information for controller and namespaces via: + + => nvme info + +Raw block read/write to can be done via the 'nvme read/write' commands: + + => nvme read a0000000 0 11000 + + => tftp 80000000 /tftpboot/kernel.itb + => nvme write 80000000 0 11000 + +Of course, file system command can be used on the NVMe hard disk as well: + + => fatls nvme 0:1 + 32376967 kernel.itb + 22929408 100m + + 2 file(s), 0 dir(s) + + => fatload nvme 0:1 a0000000 /kernel.itb + => bootm a0000000 |