diff options
Diffstat (limited to 'drivers/nvme/nvme_show.c')
| -rw-r--r-- | drivers/nvme/nvme_show.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/drivers/nvme/nvme_show.c b/drivers/nvme/nvme_show.c new file mode 100644 index 00000000000..b06cb5c6d51 --- /dev/null +++ b/drivers/nvme/nvme_show.c @@ -0,0 +1,145 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2017 NXP Semiconductors + * Copyright (C) 2017 Bin Meng <bmeng.cn@gmail.com> + */ + +#include <dm.h> +#include <errno.h> +#include <memalign.h> +#include <nvme.h> +#include "nvme.h" + +static void print_optional_admin_cmd(u16 oacs, int devnum) +{ + printf("Blk device %d: Optional Admin Command Support:\n", + devnum); + printf("\tNamespace Management/Attachment: %s\n", + oacs & 0x08 ? "yes" : "no"); + printf("\tFirmware Commit/Image download: %s\n", + oacs & 0x04 ? "yes" : "no"); + printf("\tFormat NVM: %s\n", + oacs & 0x02 ? "yes" : "no"); + printf("\tSecurity Send/Receive: %s\n", + oacs & 0x01 ? "yes" : "no"); +} + +static void print_optional_nvm_cmd(u16 oncs, int devnum) +{ + printf("Blk device %d: Optional NVM Command Support:\n", + devnum); + printf("\tReservation: %s\n", + oncs & 0x10 ? "yes" : "no"); + printf("\tSave/Select field in the Set/Get features: %s\n", + oncs & 0x08 ? "yes" : "no"); + printf("\tWrite Zeroes: %s\n", + oncs & 0x04 ? "yes" : "no"); + printf("\tDataset Management: %s\n", + oncs & 0x02 ? "yes" : "no"); + printf("\tWrite Uncorrectable: %s\n", + oncs & 0x01 ? "yes" : "no"); +} + +static void print_format_nvme_attributes(u8 fna, int devnum) +{ + printf("Blk device %d: Format NVM Attributes:\n", devnum); + printf("\tSupport Cryptographic Erase: %s\n", + fna & 0x04 ? "yes" : "No"); + printf("\tSupport erase a particular namespace: %s\n", + fna & 0x02 ? "No" : "Yes"); + printf("\tSupport format a particular namespace: %s\n", + fna & 0x01 ? "No" : "Yes"); +} + +static void print_format(struct nvme_lbaf *lbaf) +{ + u8 str[][10] = {"Best", "Better", "Good", "Degraded"}; + + printf("\t\tMetadata Size: %d\n", le16_to_cpu(lbaf->ms)); + printf("\t\tLBA Data Size: %d\n", 1 << lbaf->ds); + printf("\t\tRelative Performance: %s\n", str[lbaf->rp & 0x03]); +} + +static void print_formats(struct nvme_id_ns *id, struct nvme_ns *ns) +{ + int i; + + printf("Blk device %d: LBA Format Support:\n", ns->devnum); + + for (i = 0; i < id->nlbaf; i++) { + printf("\tLBA Format %d Support: ", i); + if (i == ns->flbas) + printf("(current)\n"); + else + printf("\n"); + print_format(id->lbaf + i); + } +} + +static void print_data_protect_cap(u8 dpc, int devnum) +{ + printf("Blk device %d: End-to-End Data", devnum); + printf("Protect Capabilities:\n"); + printf("\tAs last eight bytes: %s\n", + dpc & 0x10 ? "yes" : "No"); + printf("\tAs first eight bytes: %s\n", + dpc & 0x08 ? "yes" : "No"); + printf("\tSupport Type3: %s\n", + dpc & 0x04 ? "yes" : "No"); + printf("\tSupport Type2: %s\n", + dpc & 0x02 ? "yes" : "No"); + printf("\tSupport Type1: %s\n", + dpc & 0x01 ? "yes" : "No"); +} + +static void print_metadata_cap(u8 mc, int devnum) +{ + printf("Blk device %d: Metadata capabilities:\n", devnum); + printf("\tAs part of a separate buffer: %s\n", + mc & 0x02 ? "yes" : "No"); + printf("\tAs part of an extended data LBA: %s\n", + mc & 0x01 ? "yes" : "No"); +} + +int nvme_print_info(struct udevice *udev) +{ + struct nvme_ns *ns = dev_get_priv(udev); + struct nvme_dev *dev = ns->dev; + struct nvme_id_ctrl *ctrl; + struct nvme_id_ns *id; + int ret = 0; + + ctrl = memalign(dev->page_size, sizeof(struct nvme_id_ctrl)); + if (!ctrl) + return -ENOMEM; + + if (nvme_identify(dev, 0, 1, (dma_addr_t)(long)ctrl)) { + ret = -EIO; + goto free_ctrl; + } + + print_optional_admin_cmd(le16_to_cpu(ctrl->oacs), ns->devnum); + print_optional_nvm_cmd(le16_to_cpu(ctrl->oncs), ns->devnum); + print_format_nvme_attributes(ctrl->fna, ns->devnum); + + id = memalign(dev->page_size, sizeof(struct nvme_id_ns)); + if (!id) { + ret = -ENOMEM; + goto free_ctrl; + } + + if (nvme_identify(dev, ns->ns_id, 0, (dma_addr_t)(long)id)) { + ret = -EIO; + goto free_id; + } + + print_formats(id, ns); + print_data_protect_cap(id->dpc, ns->devnum); + print_metadata_cap(id->mc, ns->devnum); + +free_id: + free(id); +free_ctrl: + free(ctrl); + return ret; +} |