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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-29 04:41:05 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-29 04:41:05 +0000 |
commit | 1cc8413aaf5f8fa6595aece1933462c096e88639 (patch) | |
tree | e97b4f25c511372d73bdd96c389c5f468d99138a /plugins/netapp/netapp-nvme.c | |
parent | Initial commit. (diff) | |
download | nvme-cli-5cfa46883ee24249a66010b27ade5caf2917916a.tar.xz nvme-cli-5cfa46883ee24249a66010b27ade5caf2917916a.zip |
Adding upstream version 2.4+really2.3.upstream/2.4+really2.3upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | plugins/netapp/netapp-nvme.c | 654 |
1 files changed, 654 insertions, 0 deletions
diff --git a/plugins/netapp/netapp-nvme.c b/plugins/netapp/netapp-nvme.c new file mode 100644 index 0000000..f5cb073 --- /dev/null +++ b/plugins/netapp/netapp-nvme.c @@ -0,0 +1,654 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* +* Copyright (c) 2018 NetApp, Inc. +* +* This program is free software; you can redistribute it and/or +* modify it under the terms of the GNU General Public License +* as published by the Free Software Foundation; either version 2 +* of the License, or (at your option) any later version. +* +* This program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +* +*/ + +#include <stdio.h> +#include <dirent.h> +#include <sys/stat.h> +#include <stdlib.h> +#include <fcntl.h> +#include <unistd.h> +#include <errno.h> +#include <string.h> + +#include "common.h" +#include "nvme.h" +#include "libnvme.h" + +#include "util/suffix.h" + +#define CREATE_CMD +#include "netapp-nvme.h" + +#define ONTAP_C2_LOG_ID 0xC2 +#define ONTAP_C2_LOG_SIZE 4096 +#define ONTAP_LABEL_LEN 260 +#define ONTAP_NS_PATHLEN 525 + +enum { + NNORMAL, + NJSON, + NCOLUMN, +}; + +enum { + ONTAP_C2_LOG_SUPPORTED_LSP = 0x0, + ONTAP_C2_LOG_NSINFO_LSP = 0x1, +}; + +enum { + ONTAP_VSERVER_TLV = 0x11, + ONTAP_VOLUME_TLV = 0x12, + ONTAP_NS_TLV = 0x13, +}; + +static const char *dev_path = "/dev/"; + +struct smdevice_info { + unsigned nsid; + struct nvme_id_ctrl ctrl; + struct nvme_id_ns ns; + char dev[265]; +}; + +struct ontapdevice_info { + unsigned nsid; + struct nvme_id_ctrl ctrl; + struct nvme_id_ns ns; + unsigned char uuid[NVME_UUID_LEN]; + unsigned char log_data[ONTAP_C2_LOG_SIZE]; + char dev[265]; +}; + +#define ARRAY_LABEL_LEN 60 +#define VOLUME_LABEL_LEN 60 + +/* + * Format of the string isn't tightly controlled yet. For now, squash UCS-2 into + * ASCII. dst buffer must be at least count + 1 bytes long + */ +static void netapp_convert_string(char *dst, char *src, unsigned int count) +{ + int i; + + if (!dst || !src || !count) + return; + + memset(dst, 0, count + 1); + for (i = 0; i < count; i++) + dst[i] = src[i * 2 + 1]; + /* the json routines won't accept empty strings */ + if (strlen(dst) == 0 && count) + dst[0] = ' '; +} + +static void netapp_nguid_to_str(char *str, __u8 *nguid) +{ + int i; + + memset(str, 0, 33); + for (i = 0; i < 16; i++) + str += sprintf(str, "%02x", nguid[i]); +} + +static void netapp_get_ns_size(char *size, unsigned long long *lba, + struct nvme_id_ns *ns) +{ + __u8 lba_index; + nvme_id_ns_flbas_to_lbaf_inuse(ns->flbas, &lba_index); + *lba = 1ULL << ns->lbaf[lba_index].ds; + double nsze = le64_to_cpu(ns->nsze) * (*lba); + const char *s_suffix = suffix_si_get(&nsze); + + sprintf(size, "%.2f%sB", nsze, s_suffix); +} + +static void ontap_labels_to_str(char *dst, char *src, int count) +{ + int i; + + memset(dst, 0, ONTAP_LABEL_LEN); + for (i = 0; i < count; i++) { + if (src[i] >= '!' && src[i] <= '~') + dst[i] = src[i]; + else + break; + } + dst[i] = '\0'; +} + +static void netapp_get_ontap_labels(char *vsname, char *nspath, + unsigned char *log_data) +{ + int lsp, tlv, label_len; + char *vserver_name, *volume_name, *namespace_name; + char vol_name[ONTAP_LABEL_LEN], ns_name[ONTAP_LABEL_LEN]; + const char *ontap_vol = "/vol/"; + int i, j; + + /* get the lsp */ + lsp = (*(__u8 *)&log_data[16]) & 0x0F; + if (lsp != ONTAP_C2_LOG_NSINFO_LSP) + /* lsp not related to nsinfo */ + return; + + /* get the vserver tlv and name */ + tlv = *(__u8 *)&log_data[32]; + if (tlv == ONTAP_VSERVER_TLV) { + label_len = (*(__u16 *)&log_data[34]) * 4; + vserver_name = (char *)&log_data[36]; + ontap_labels_to_str(vsname, vserver_name, label_len); + } else { + /* not the expected vserver tlv */ + fprintf(stderr, "Unable to fetch ONTAP vserver name\n"); + return; + } + + i = 36 + label_len; + j = i + 2; + /* get the volume tlv and name */ + tlv = *(__u8 *)&log_data[i]; + if (tlv == ONTAP_VOLUME_TLV) { + label_len = (*(__u16 *)&log_data[j]) * 4; + volume_name = (char *)&log_data[j + 2]; + ontap_labels_to_str(vol_name, volume_name, label_len); + } else { + /* not the expected volume tlv */ + fprintf(stderr, "Unable to fetch ONTAP volume name\n"); + return; + } + + i += 4 + label_len; + j += 4 + label_len; + /* get the namespace tlv and name */ + tlv = *(__u8 *)&log_data[i]; + if (tlv == ONTAP_NS_TLV) { + label_len = (*(__u16 *)&log_data[j]) * 4; + namespace_name = (char *)&log_data[j + 2]; + ontap_labels_to_str(ns_name, namespace_name, label_len); + } else { + /* not the expected namespace tlv */ + fprintf(stderr, "Unable to fetch ONTAP namespace name\n"); + return; + } + + snprintf(nspath, ONTAP_NS_PATHLEN, "%s%s%s%s", ontap_vol, + vol_name, "/", ns_name); +} + +static void netapp_smdevice_json(struct json_object *devices, char *devname, + char *arrayname, char *volname, int nsid, char *nguid, + char *ctrl, char *astate, char *size, long long lba, + long long nsze) +{ + struct json_object *device_attrs; + + device_attrs = json_create_object(); + json_object_add_value_string(device_attrs, "Device", devname); + json_object_add_value_string(device_attrs, "Array_Name", arrayname); + json_object_add_value_string(device_attrs, "Volume_Name", volname); + json_object_add_value_int(device_attrs, "NSID", nsid); + json_object_add_value_string(device_attrs, "Volume_ID", nguid); + json_object_add_value_string(device_attrs, "Controller", ctrl); + json_object_add_value_string(device_attrs, "Access_State", astate); + json_object_add_value_string(device_attrs, "Size", size); + json_object_add_value_int(device_attrs, "LBA_Data_Size", lba); + json_object_add_value_int(device_attrs, "Namespace_Size", nsze); + + json_array_add_value_object(devices, device_attrs); +} + +static void netapp_ontapdevice_json(struct json_object *devices, char *devname, + char *vsname, char *nspath, int nsid, char *uuid, + char *size, long long lba, long long nsze) +{ + struct json_object *device_attrs; + + device_attrs = json_create_object(); + json_object_add_value_string(device_attrs, "Device", devname); + json_object_add_value_string(device_attrs, "Vserver", vsname); + json_object_add_value_string(device_attrs, "Namespace_Path", nspath); + json_object_add_value_int(device_attrs, "NSID", nsid); + json_object_add_value_string(device_attrs, "UUID", uuid); + json_object_add_value_string(device_attrs, "Size", size); + json_object_add_value_int(device_attrs, "LBA_Data_Size", lba); + json_object_add_value_int(device_attrs, "Namespace_Size", nsze); + + json_array_add_value_object(devices, device_attrs); +} + +static void netapp_smdevices_print(struct smdevice_info *devices, int count, int format) +{ + struct json_object *root = NULL; + struct json_object *json_devices = NULL; + int i, slta; + char array_label[ARRAY_LABEL_LEN / 2 + 1]; + char volume_label[VOLUME_LABEL_LEN / 2 + 1]; + char nguid_str[33]; + char basestr[] = "%s, Array Name %s, Volume Name %s, NSID %d, " + "Volume ID %s, Controller %c, Access State %s, %s\n"; + char columnstr[] = "%-16s %-30s %-30s %4d %32s %c %-12s %9s\n"; + char *formatstr = basestr; /* default to "normal" output format */ + __u8 lba_index; + + if (format == NCOLUMN) { + /* for column output, change output string and print column headers */ + formatstr = columnstr; + printf("%-16s %-30s %-30s %-4s %-32s %-4s %-12s %-9s\n", + "Device", "Array Name", "Volume Name", "NSID", + "Volume ID", "Ctrl", "Access State", " Size"); + printf("%-16s %-30s %-30s %-4s %-32s %-4s %-12s %-9s\n", + "----------------", "------------------------------", + "------------------------------", "----", + "--------------------------------", "----", + "------------", "---------"); + } + else if (format == NJSON) { + /* prepare for json output */ + root = json_create_object(); + json_devices = json_create_array(); + } + + for (i = 0; i < count; i++) { + nvme_id_ns_flbas_to_lbaf_inuse(devices[i].ns.flbas, &lba_index); + unsigned long long int lba = 1ULL << devices[i].ns.lbaf[lba_index].ds; + double nsze = le64_to_cpu(devices[i].ns.nsze) * lba; + const char *s_suffix = suffix_si_get(&nsze); + char size[128]; + + sprintf(size, "%.2f%sB", nsze, s_suffix); + netapp_convert_string(array_label, (char *)&devices[i].ctrl.vs[20], + ARRAY_LABEL_LEN / 2); + slta = devices[i].ctrl.vs[0] & 0x1; + netapp_convert_string(volume_label, (char *)devices[i].ns.vs, + VOLUME_LABEL_LEN / 2); + netapp_nguid_to_str(nguid_str, devices[i].ns.nguid); + if (format == NJSON) + netapp_smdevice_json(json_devices, devices[i].dev, + array_label, volume_label, devices[i].nsid, + nguid_str, slta ? "A" : "B", "unknown", size, + lba, le64_to_cpu(devices[i].ns.nsze)); + else + printf(formatstr, devices[i].dev, array_label, + volume_label, devices[i].nsid, nguid_str, + slta ? 'A' : 'B', "unknown", size); + } + + if (format == NJSON) { + /* complete the json output */ + json_object_add_value_array(root, "SMdevices", json_devices); + json_print_object(root, NULL); + printf("\n"); + json_free_object(root); + } +} + +static void netapp_ontapdevices_print(struct ontapdevice_info *devices, + int count, int format) +{ + struct json_object *root = NULL; + struct json_object *json_devices = NULL; + char vsname[ONTAP_LABEL_LEN] = " "; + char nspath[ONTAP_NS_PATHLEN] = " "; + unsigned long long lba; + char size[128]; + char uuid_str[37] = " "; + int i; + + char basestr[] = "%s, Vserver %s, Namespace Path %s, NSID %d, UUID %s, %s\n"; + char columnstr[] = "%-16s %-25s %-50s %-4d %-38s %-9s\n"; + + /* default to 'normal' output format */ + char *formatstr = basestr; + + if (format == NCOLUMN) { + /* change output string and print column headers */ + formatstr = columnstr; + printf("%-16s %-25s %-50s %-4s %-38s %-9s\n", + "Device", "Vserver", "Namespace Path", + "NSID", "UUID", "Size"); + printf("%-16s %-25s %-50s %-4s %-38s %-9s\n", + "----------------", "-------------------------", + "--------------------------------------------------", + "----", "--------------------------------------", + "---------"); + } else if (format == NJSON) { + /* prepare for json output */ + root = json_create_object(); + json_devices = json_create_array(); + } + + for (i = 0; i < count; i++) { + + netapp_get_ns_size(size, &lba, &devices[i].ns); + nvme_uuid_to_string(devices[i].uuid, uuid_str); + netapp_get_ontap_labels(vsname, nspath, devices[i].log_data); + + if (format == NJSON) { + netapp_ontapdevice_json(json_devices, devices[i].dev, + vsname, nspath, devices[i].nsid, + uuid_str, size, lba, + le64_to_cpu(devices[i].ns.nsze)); + } else + printf(formatstr, devices[i].dev, vsname, nspath, + devices[i].nsid, uuid_str, size); + } + + if (format == NJSON) { + /* complete the json output */ + json_object_add_value_array(root, "ONTAPdevices", json_devices); + json_print_object(root, NULL); + printf("\n"); + json_free_object(root); + } +} + +static int nvme_get_ontap_c2_log(int fd, __u32 nsid, void *buf, __u32 buflen) +{ + struct nvme_passthru_cmd get_log; + int err; + + memset(buf, 0, buflen); + memset(&get_log, 0, sizeof(struct nvme_passthru_cmd)); + + get_log.opcode = nvme_admin_get_log_page; + get_log.nsid = nsid; + get_log.addr = (__u64)(uintptr_t)buf; + get_log.data_len = buflen; + + __u32 numd = (get_log.data_len >> 2) - 1; + __u32 numdu = numd >> 16; + __u32 numdl = numd & 0xFFFF; + + get_log.cdw10 = ONTAP_C2_LOG_ID | (numdl << 16); + get_log.cdw10 |= ONTAP_C2_LOG_NSINFO_LSP << 8; + get_log.cdw11 = numdu; + + err = nvme_submit_admin_passthru(fd, &get_log, NULL); + if (err) { + fprintf(stderr, "ioctl error %0x\n", err); + return 1; + } + + return 0; +} + +static int netapp_smdevices_get_info(int fd, struct smdevice_info *item, + const char *dev) +{ + int err; + + err = nvme_identify_ctrl(fd, &item->ctrl); + if (err) { + fprintf(stderr, + "Identify Controller failed to %s (%s)\n", dev, + err < 0 ? strerror(-err) : + nvme_status_to_string(err, false)); + return 0; + } + + if (strncmp("NetApp E-Series", item->ctrl.mn, 15) != 0) + return 0; /* not the right model of controller */ + + err = nvme_get_nsid(fd, &item->nsid); + err = nvme_identify_ns(fd, item->nsid, &item->ns); + if (err) { + fprintf(stderr, + "Unable to identify namespace for %s (%s)\n", + dev, err < 0 ? strerror(-err) : + nvme_status_to_string(err, false)); + return 0; + } + strncpy(item->dev, dev, sizeof(item->dev) - 1); + + return 1; +} + +static int netapp_ontapdevices_get_info(int fd, struct ontapdevice_info *item, + const char *dev) +{ + int err; + void *nsdescs; + + err = nvme_identify_ctrl(fd, &item->ctrl); + if (err) { + fprintf(stderr, "Identify Controller failed to %s (%s)\n", + dev, err < 0 ? strerror(-err) : + nvme_status_to_string(err, false)); + return 0; + } + + if (strncmp("NetApp ONTAP Controller", item->ctrl.mn, 23) != 0) + /* not the right controller model */ + return 0; + + err = nvme_get_nsid(fd, &item->nsid); + + err = nvme_identify_ns(fd, item->nsid, &item->ns); + if (err) { + fprintf(stderr, "Unable to identify namespace for %s (%s)\n", + dev, err < 0 ? strerror(-err) : + nvme_status_to_string(err, false)); + return 0; + } + + if (posix_memalign(&nsdescs, getpagesize(), 0x1000)) { + fprintf(stderr, "Cannot allocate controller list payload\n"); + return 0; + } + + err = nvme_identify_ns_descs(fd, item->nsid, nsdescs); + if (err) { + fprintf(stderr, "Unable to identify namespace descriptor for %s (%s)\n", + dev, err < 0 ? strerror(-err) : + nvme_status_to_string(err, false)); + free(nsdescs); + return 0; + } + + memcpy(item->uuid, nsdescs + sizeof(struct nvme_ns_id_desc), sizeof(item->uuid)); + free(nsdescs); + + err = nvme_get_ontap_c2_log(fd, item->nsid, item->log_data, ONTAP_C2_LOG_SIZE); + if (err) { + fprintf(stderr, "Unable to get log page data for %s (%s)\n", + dev, err < 0 ? strerror(-err): + nvme_status_to_string(err, false)); + return 0; + } + + strncpy(item->dev, dev, sizeof(item->dev) - 1); + + return 1; +} + +static int netapp_nvme_filter(const struct dirent *d) +{ + char path[264]; + struct stat bd; + int ctrl, ns, partition; + + if (d->d_name[0] == '.') + return 0; + + if (strstr(d->d_name, "nvme")) { + snprintf(path, sizeof(path), "%s%s", dev_path, d->d_name); + if (stat(path, &bd)) + return 0; + if (sscanf(d->d_name, "nvme%dn%d", &ctrl, &ns) != 2) + return 0; + if (sscanf(d->d_name, "nvme%dn%dp%d", &ctrl, &ns, &partition) == 3) + return 0; + return 1; + } + return 0; +} + +static int netapp_output_format(char *format) +{ + if (!format) + return -EINVAL; + if (!strcmp(format, "normal")) + return NNORMAL; + if (!strcmp(format, "json")) + return NJSON; + if (!strcmp(format, "column")) + return NCOLUMN; + return -EINVAL; +} + +/* handler for 'nvme netapp smdevices' */ +static int netapp_smdevices(int argc, char **argv, struct command *command, + struct plugin *plugin) +{ + const char *desc = "Display information about E-Series volumes."; + + struct dirent **devices; + int num, i, fd, ret, fmt; + struct smdevice_info *smdevices; + char path[264]; + int num_smdevices = 0; + + struct config { + char *output_format; + }; + + struct config cfg = { + .output_format = "normal", + }; + + OPT_ARGS(opts) = { + OPT_FMT("output-format", 'o', &cfg.output_format, "Output Format: normal|json|column"), + OPT_END() + }; + + ret = argconfig_parse(argc, argv, desc, opts); + if (ret < 0) + return ret; + + fmt = netapp_output_format(cfg.output_format); + if (fmt != NNORMAL && fmt != NCOLUMN && fmt != NJSON) { + fprintf(stderr, "Unrecognized output format: %s\n", cfg.output_format); + return -EINVAL; + } + + num = scandir(dev_path, &devices, netapp_nvme_filter, alphasort); + if (num <= 0) { + fprintf(stderr, "No NVMe devices detected.\n"); + return num; + } + + smdevices = calloc(num, sizeof(*smdevices)); + if (!smdevices) { + fprintf(stderr, "Unable to allocate memory for devices.\n"); + return ENOMEM; + } + + for (i = 0; i < num; i++) { + snprintf(path, sizeof(path), "%s%s", dev_path, + devices[i]->d_name); + fd = open(path, O_RDONLY); + if (fd < 0) { + fprintf(stderr, "Unable to open %s: %s\n", path, + strerror(errno)); + continue; + } + + num_smdevices += netapp_smdevices_get_info(fd, + &smdevices[num_smdevices], path); + close(fd); + } + + if (num_smdevices) + netapp_smdevices_print(smdevices, num_smdevices, fmt); + + for (i = 0; i < num; i++) + free(devices[i]); + free(devices); + free(smdevices); + return 0; +} + +/* handler for 'nvme netapp ontapdevices' */ +static int netapp_ontapdevices(int argc, char **argv, struct command *command, + struct plugin *plugin) +{ + const char *desc = "Display information about ONTAP devices."; + struct dirent **devices; + int num, i, fd, ret, fmt; + struct ontapdevice_info *ontapdevices; + char path[264]; + int num_ontapdevices = 0; + + struct config { + char *output_format; + }; + + struct config cfg = { + .output_format = "normal", + }; + + OPT_ARGS(opts) = { + OPT_FMT("output-format", 'o', &cfg.output_format, "Output Format: normal|json|column"), + OPT_END() + }; + + ret = argconfig_parse(argc, argv, desc, opts); + if (ret < 0) + return ret; + + fmt = netapp_output_format(cfg.output_format); + if (fmt != NNORMAL && fmt != NCOLUMN && fmt != NJSON) { + fprintf(stderr, "Unrecognized output format: %s\n", cfg.output_format); + return -EINVAL; + } + + num = scandir(dev_path, &devices, netapp_nvme_filter, alphasort); + if (num <= 0) { + fprintf(stderr, "No NVMe devices detected.\n"); + return num; + } + + ontapdevices = calloc(num, sizeof(*ontapdevices)); + if (!ontapdevices) { + fprintf(stderr, "Unable to allocate memory for devices.\n"); + return -ENOMEM; + } + + for (i = 0; i < num; i++) { + snprintf(path, sizeof(path), "%s%s", dev_path, + devices[i]->d_name); + fd = open(path, O_RDONLY); + if (fd < 0) { + fprintf(stderr, "Unable to open %s: %s\n", path, + strerror(errno)); + continue; + } + + num_ontapdevices += netapp_ontapdevices_get_info(fd, + &ontapdevices[num_ontapdevices], path); + + close(fd); + } + + if (num_ontapdevices) + netapp_ontapdevices_print(ontapdevices, num_ontapdevices, fmt); + + for (i = 0; i < num; i++) + free(devices[i]); + free(devices); + free(ontapdevices); + return 0; +} |