From f6aa61d599678b74b3c4a6bd5604a0f9ac2af9b2 Mon Sep 17 00:00:00 2001 From: Zhikang Zhang Date: Thu, 3 Aug 2017 02:30:58 -0700 Subject: [PATCH] nvme: Add show routine to print detailed information This adds nvme_print_info() to show detailed NVMe controller and namespace information. Signed-off-by: Zhikang Zhang Signed-off-by: Wenbin Song Signed-off-by: Bin Meng Reviewed-by: Tom Rini --- drivers/nvme/Makefile | 2 +- drivers/nvme/nvme_show.c | 127 +++++++++++++++++++++++++++++++++++++++ include/nvme.h | 11 ++++ 3 files changed, 139 insertions(+), 1 deletion(-) create mode 100644 drivers/nvme/nvme_show.c diff --git a/drivers/nvme/Makefile b/drivers/nvme/Makefile index 7bd9fa41c0..1f3010a8c2 100644 --- a/drivers/nvme/Makefile +++ b/drivers/nvme/Makefile @@ -4,4 +4,4 @@ # SPDX-License-Identifier: GPL-2.0+ # -obj-y += nvme-uclass.o nvme.o +obj-y += nvme-uclass.o nvme.o nvme_show.o diff --git a/drivers/nvme/nvme_show.c b/drivers/nvme/nvme_show.c new file mode 100644 index 0000000000..5577e5de45 --- /dev/null +++ b/drivers/nvme/nvme_show.c @@ -0,0 +1,127 @@ +/* + * Copyright (C) 2017 NXP Semiconductors + * Copyright (C) 2017 Bin Meng + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include +#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 Foramt %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_ns buf_ns, *id = &buf_ns; + struct nvme_id_ctrl buf_ctrl, *ctrl = &buf_ctrl; + + if (nvme_identify(dev, 0, 1, (dma_addr_t)ctrl)) + return -EIO; + + 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); + + if (nvme_identify(dev, ns->ns_id, 0, (dma_addr_t)id)) + return -EIO; + + print_formats(id, ns); + print_data_protect_cap(id->dpc, ns->devnum); + print_metadata_cap(id->mc, ns->devnum); + + return 0; +} diff --git a/include/nvme.h b/include/nvme.h index 362440871b..8375d61e02 100644 --- a/include/nvme.h +++ b/include/nvme.h @@ -68,4 +68,15 @@ int nvme_set_features(struct nvme_dev *dev, unsigned fid, unsigned dword11, */ int nvme_scan_namespace(void); +/** + * nvme_print_info - print detailed NVMe controller and namespace information + * + * This prints out detailed human readable NVMe controller and namespace + * information which is very useful for debugging. + * + * @udev: NVMe controller device + * @return: 0 on success, -EIO if NVMe identify command fails + */ +int nvme_print_info(struct udevice *udev); + #endif /* __NVME_H__ */ -- 2.25.1