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-rw-r--r--plugins/lnvm/lnvm-nvme.c436
-rw-r--r--plugins/lnvm/lnvm-nvme.h27
2 files changed, 463 insertions, 0 deletions
diff --git a/plugins/lnvm/lnvm-nvme.c b/plugins/lnvm/lnvm-nvme.c
new file mode 100644
index 0000000..3678176
--- /dev/null
+++ b/plugins/lnvm/lnvm-nvme.c
@@ -0,0 +1,436 @@
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "nvme.h"
+#include "nvme-print.h"
+#include "nvme-ioctl.h"
+#include "plugin.h"
+
+#include "nvme-lightnvm.h"
+
+#include "argconfig.h"
+#include "suffix.h"
+
+#define CREATE_CMD
+#include "lnvm-nvme.h"
+
+static int lnvm_init(int argc, char **argv, struct command *cmd, struct plugin *plugin)
+{
+ const char *desc = "Initialize LightNVM device. A LightNVM/Open-Channel SSD"\
+ " must have a media manager associated before it can"\
+ " be exposed to the user. The default is to initialize"
+ " the general media manager on top of the device.\n\n"
+ "Example:"
+ " lnvm-init -d nvme0n1";
+ const char *devname = "identifier of desired device. e.g. nvme0n1.";
+ const char *mmtype = "media manager to initialize on top of device. Default: gennvm.";
+ int ret;
+
+ struct config {
+ char *devname;
+ char *mmtype;
+ };
+
+ struct config cfg = {
+ .devname = "",
+ .mmtype = "gennvm",
+ };
+
+ OPT_ARGS(opts) = {
+ OPT_STRING("device-name", 'd', "DEVICE", &cfg.devname, devname),
+ OPT_STRING("mediamgr-name", 'm', "MM", &cfg.mmtype, mmtype),
+ OPT_END()
+ };
+
+ ret = argconfig_parse(argc, argv, desc, opts);
+ if (ret < 0)
+ return ret;
+
+ if (!strlen(cfg.devname)) {
+ fprintf(stderr, "device name missing\n");
+ return -EINVAL;
+ }
+
+ return lnvm_do_init(cfg.devname, cfg.mmtype);
+}
+
+static int lnvm_list(int argc, char **argv, struct command *cmd, struct plugin *plugin)
+{
+ const char *desc = "List all devices registered with LightNVM.";
+ int ret;
+
+ OPT_ARGS(opts) = {
+ OPT_END()
+ };
+
+ ret = argconfig_parse(argc, argv, desc, opts);
+ if (ret < 0)
+ return ret;
+
+ return lnvm_do_list_devices();
+}
+
+static int lnvm_info(int argc, char **argv, struct command *cmd, struct plugin *plugin)
+{
+ const char *desc = "Show general information and registered target types with LightNVM";
+ int ret;
+
+ OPT_ARGS(opts) = {
+ OPT_END()
+ };
+
+ ret = argconfig_parse(argc, argv, desc, opts);
+ if (ret < 0)
+ return ret;
+
+ return lnvm_do_info();
+}
+
+static int lnvm_id_ns(int argc, char **argv, struct command *cmd, struct plugin *plugin)
+{
+ const char *desc = "Send an Identify Geometry command to the "\
+ "given LightNVM device, returns properties of the specified "\
+ "namespace in either human-readable or binary format.";
+ const char *raw_binary = "show infos in binary format";
+ const char *human_readable = "show infos in readable format";
+ const char *namespace_id = "identifier of desired namespace. default: 1";
+ unsigned int flags = 0;
+ int fd;
+
+ struct config {
+ __u32 namespace_id;
+ int raw_binary;
+ int human_readable;
+ };
+
+ struct config cfg = {
+ .namespace_id = 1,
+ };
+
+ OPT_ARGS(opts) = {
+ OPT_UINT("namespace-id", 'n', &cfg.namespace_id, namespace_id),
+ OPT_FLAG("raw-binary", 'b', &cfg.raw_binary, raw_binary),
+ OPT_FLAG("human-readable", 'H', &cfg.human_readable, human_readable),
+ OPT_END()
+ };
+
+ fd = parse_and_open(argc, argv, desc, opts);
+ if (fd < 0)
+ return fd;
+
+ if (cfg.human_readable)
+ flags |= VERBOSE;
+ else if (cfg.raw_binary)
+ flags |= BINARY;
+
+ return lnvm_do_id_ns(fd, cfg.namespace_id, flags);
+}
+
+static int lnvm_chunk_log(int argc, char **argv, struct command *cmd, struct plugin *plugin)
+{
+ const char *desc = "Retrieve the chunk information log for the "\
+ "specified given LightNVM device, returns in either "\
+ "human-readable or binary format.\n"\
+ "This will request Geometry first to get the "\
+ "num_grp,num_pu,num_chk first to figure out the total size "\
+ "of the log pages."\
+ ;
+ const char *output_format = "Output format: normal|binary";
+ const char *human_readable = "Print normal in readable format";
+ int err, fmt, fd;
+ struct nvme_nvm_id20 geo;
+ struct nvme_nvm_chunk_desc *chunk_log;
+ __u32 nsid;
+ __u32 data_len;
+ unsigned int flags = 0;
+
+ struct config {
+ char *output_format;
+ int human_readable;
+ };
+
+ struct config cfg = {
+ .output_format = "normal",
+ };
+
+ OPT_ARGS(opts) = {
+ OPT_FMT("output-format", 'o', &cfg.output_format, output_format),
+ OPT_FLAG("human-readable",'H', &cfg.human_readable, human_readable),
+ OPT_END()
+ };
+
+ fd = parse_and_open(argc, argv, desc, opts);
+ if (fd < 0)
+ return fd;
+
+ fmt = validate_output_format(cfg.output_format);
+ if (fmt < 0) {
+ err = fmt;
+ goto close;
+ }
+
+ if (fmt == BINARY)
+ flags |= BINARY;
+ else if (cfg.human_readable)
+ flags |= VERBOSE;
+
+ nsid = nvme_get_nsid(fd);
+
+ /*
+ * It needs to figure out how many bytes will be requested by this
+ * subcommand by the (num_grp * num_pu * num_chk) from the Geometry.
+ */
+ err = lnvm_get_identity(fd, nsid, (struct nvme_nvm_id *) &geo);
+ if (err)
+ goto close;
+
+ data_len = (geo.num_grp * geo.num_pu * geo.num_chk) *
+ sizeof(struct nvme_nvm_chunk_desc);
+ chunk_log = malloc(data_len);
+ if (!chunk_log) {
+ fprintf(stderr, "cound not alloc for chunk log %dbytes\n",
+ data_len);
+ err = -ENOMEM;
+ goto close;
+ }
+
+ err = lnvm_do_chunk_log(fd, nsid, data_len, chunk_log, flags);
+ if (err)
+ fprintf(stderr, "get log page for chunk information failed\n");
+
+ free(chunk_log);
+close:
+ close(fd);
+ return err;
+}
+
+static int lnvm_create_tgt(int argc, char **argv, struct command *cmd, struct plugin *plugin)
+{
+ const char *desc = "Instantiate a target on top of a LightNVM enabled device.";
+ const char *devname = "identifier of desired device. e.g. nvme0n1.";
+ const char *tgtname = "target name of the device to initialize. e.g. target0.";
+ const char *tgttype = "identifier of target type. e.g. pblk.";
+ const char *lun_begin = "Define begin of luns to use for target.";
+ const char *lun_end = "Define set of luns to use for target.";
+ const char *over_prov = "Define over-provision percentage for target.";
+ const char *flag_factory = "Create target in factory mode";
+ int flags;
+ int ret;
+
+ struct config {
+ char *devname;
+ char *tgtname;
+ char *tgttype;
+ __u32 lun_begin;
+ __u32 lun_end;
+ __u32 over_prov;
+
+ /* flags */
+ __u32 factory;
+ };
+
+ struct config cfg = {
+ .devname = "",
+ .tgtname = "",
+ .tgttype = "",
+ .lun_begin = -1,
+ .lun_end = -1,
+ .over_prov = -1,
+ .factory = 0,
+ };
+
+ OPT_ARGS(opts) = {
+ OPT_STRING("device-name", 'd', "DEVICE", &cfg.devname, devname),
+ OPT_STRING("target-name", 'n', "TARGET", &cfg.tgtname, tgtname),
+ OPT_STRING("target-type", 't', "TARGETTYPE", &cfg.tgttype, tgttype),
+ OPT_UINT("lun-begin", 'b', &cfg.lun_begin, lun_begin),
+ OPT_UINT("lun-end", 'e', &cfg.lun_end, lun_end),
+ OPT_UINT("over-prov", 'o', &cfg.over_prov, over_prov),
+ OPT_FLAG("factory", 'f', &cfg.factory, flag_factory),
+ OPT_END()
+ };
+
+ ret = argconfig_parse(argc, argv, desc, opts);
+ if (ret < 0)
+ return ret;
+
+ if (!strlen(cfg.devname)) {
+ fprintf(stderr, "device name missing\n");
+ return -EINVAL;
+ }
+ if (!strlen(cfg.tgtname)) {
+ fprintf(stderr, "target name missing\n");
+ return -EINVAL;
+ }
+ if (!strlen(cfg.tgttype)) {
+ fprintf(stderr, "target type missing\n");
+ return -EINVAL;
+ }
+
+ flags = 0;
+ if (cfg.factory)
+ flags |= NVM_TARGET_FACTORY;
+
+ return lnvm_do_create_tgt(cfg.devname, cfg.tgtname, cfg.tgttype, cfg.lun_begin, cfg.lun_end, cfg.over_prov, flags);
+}
+
+static int lnvm_remove_tgt(int argc, char **argv, struct command *cmd, struct plugin *plugin)
+{
+ const char *desc = "Remove an initialized LightNVM target.";
+ const char *tgtname = "target name of the device to remove. e.g. target0.";
+ int ret;
+
+ struct config {
+ char *tgtname;
+ };
+
+ struct config cfg = {
+ .tgtname = "",
+ };
+
+ OPT_ARGS(opts) = {
+ OPT_STRING("target-name", 'n', "TARGET", &cfg.tgtname, tgtname),
+ OPT_END()
+ };
+
+ ret = argconfig_parse(argc, argv, desc, opts);
+ if (ret < 0)
+ return ret;
+
+ if (!strlen(cfg.tgtname)) {
+ fprintf(stderr, "target name missing\n");
+ return -EINVAL;
+ }
+
+ return lnvm_do_remove_tgt(cfg.tgtname);
+}
+
+static int lnvm_factory_init(int argc, char **argv, struct command *cmd, struct plugin *plugin)
+{
+ const char *desc = "Factory initialize a LightNVM enabled device.";
+ const char *devname = "identifier of desired device. e.g. nvme0n1.";
+ const char *erase_only_marked = "only erase marked blocks. default: all blocks.";
+ const char *host_marks = "remove host side blocks list. default: keep.";
+ const char *bb_marks = "remove grown bad blocks list. default: keep";
+ int ret;
+
+ struct config {
+ char *devname;
+ int erase_only_marked;
+ int clear_host_marks;
+ int clear_bb_marks;
+ };
+
+ struct config cfg = {
+ .devname = "",
+ };
+
+ OPT_ARGS(opts) = {
+ OPT_STRING("device-name", 'd', "DEVICE", &cfg.devname, devname),
+ OPT_FLAG("erase-only-marked", 'e', &cfg.erase_only_marked, erase_only_marked),
+ OPT_FLAG("clear-host-side-blks", 's', &cfg.clear_host_marks, host_marks),
+ OPT_FLAG("clear-bb-blks", 'b', &cfg.clear_bb_marks, bb_marks),
+ OPT_END()
+ };
+
+ ret = argconfig_parse(argc, argv, desc, opts);
+ if (ret < 0)
+ return ret;
+
+ if (!strlen(cfg.devname)) {
+ fprintf(stderr, "device name missing\n");
+ return -EINVAL;
+ }
+
+ return lnvm_do_factory_init(cfg.devname, cfg.erase_only_marked,
+ cfg.clear_host_marks, cfg.clear_bb_marks);
+}
+
+static int lnvm_get_bbtbl(int argc, char **argv, struct command *cmd, struct plugin *plugin)
+{
+ const char *desc = "Receive bad block table from a LightNVM compatible"\
+ " device.";
+ const char *namespace = "(optional) desired namespace";
+ const char *ch = "channel identifier";
+ const char *lun = "lun identifier (within a channel)";
+ const char *raw_binary = "show infos in binary format";
+ unsigned int fd, flags = 0;
+
+ struct config {
+ __u32 namespace_id;
+ __u16 lunid;
+ __u16 chid;
+ int raw_binary;
+ };
+
+ struct config cfg = {
+ .namespace_id = 1,
+ .lunid = 0,
+ .chid = 0,
+ };
+
+ OPT_ARGS(opts) = {
+ OPT_UINT("namespace-id", 'n', &cfg.namespace_id, namespace),
+ OPT_SHRT("channel-id", 'c', &cfg.chid, ch),
+ OPT_SHRT("lun-id", 'l', &cfg.lunid, lun),
+ OPT_FLAG("raw-binary", 'b', &cfg.raw_binary, raw_binary),
+ OPT_END()
+ };
+
+ fd = parse_and_open(argc, argv, desc, opts);
+
+ if (cfg.raw_binary)
+ flags |= BINARY;
+
+ return lnvm_do_get_bbtbl(fd, cfg.namespace_id, cfg.lunid, cfg.chid, flags);
+}
+
+static int lnvm_set_bbtbl(int argc, char **argv, struct command *cmd, struct plugin *plugin)
+{
+ const char *desc = "Update bad block table on a LightNVM compatible"\
+ " device.";
+ const char *namespace = "(optional) desired namespace";
+ const char *ch = "channel identifier";
+ const char *lun = "lun identifier (within a channel)";
+ const char *pln = "plane identifier (within a lun)";
+ const char *blk = "block identifier (within a plane)";
+ const char *value = "value to update the specific block to.";
+ int fd;
+
+ struct config {
+ __u32 namespace_id;
+ __u16 lunid;
+ __u16 chid;
+ __u16 plnid;
+ __u16 blkid;
+ __u16 value;
+ };
+
+ struct config cfg = {
+ .namespace_id = 1,
+ .lunid = 0,
+ .chid = 0,
+ .plnid = 0,
+ .blkid = 0,
+ .value = 0,
+ };
+
+ OPT_ARGS(opts) = {
+ OPT_UINT("namespace-id", 'n', &cfg.namespace_id, namespace),
+ OPT_SHRT("channel-id", 'c', &cfg.chid, ch),
+ OPT_SHRT("lun-id", 'l', &cfg.lunid, lun),
+ OPT_SHRT("plane-id", 'p', &cfg.plnid, pln),
+ OPT_SHRT("block-id", 'b', &cfg.blkid, blk),
+ OPT_SHRT("value", 'v', &cfg.value, value),
+ OPT_END()
+ };
+
+ fd = parse_and_open(argc, argv, desc, opts);
+
+ printf("Updating: Ch.: %u LUN: %u Plane: %u Block: %u -> %u\n",
+ cfg.chid, cfg.lunid, cfg.plnid, cfg.blkid, cfg.value);
+ return lnvm_do_set_bbtbl(fd, cfg.namespace_id, cfg.chid, cfg.lunid,
+ cfg.plnid, cfg.blkid, cfg.value);
+}
diff --git a/plugins/lnvm/lnvm-nvme.h b/plugins/lnvm/lnvm-nvme.h
new file mode 100644
index 0000000..45b3cf0
--- /dev/null
+++ b/plugins/lnvm/lnvm-nvme.h
@@ -0,0 +1,27 @@
+
+#undef CMD_INC_FILE
+#define CMD_INC_FILE plugins/lnvm/lnvm-nvme
+
+#if !defined(LNVM_NVME) || defined(CMD_HEADER_MULTI_READ)
+#define LNVM_NVME
+
+#include "cmd.h"
+
+PLUGIN(NAME("lnvm", "LightNVM specific extensions"),
+ COMMAND_LIST(
+ ENTRY("list", "List available LightNVM devices", lnvm_list)
+ ENTRY("info", "List general information and available target engines", lnvm_info)
+ ENTRY("id-ns", "List geometry for LightNVM device", lnvm_id_ns, "geometry")
+ ENTRY("chunk-log", "Chunk Information Log Page", lnvm_chunk_log)
+ ENTRY("init", "Initialize media manager on LightNVM device", lnvm_init)
+ ENTRY("create", "Create target on top of a LightNVM device", lnvm_create_tgt)
+ ENTRY("remove", "Remove target from device", lnvm_remove_tgt)
+ ENTRY("factory", "Reset device to factory state", lnvm_factory_init)
+ ENTRY("diag-bbtbl", "Diagnose bad block table", lnvm_get_bbtbl)
+ ENTRY("diag-set-bbtbl", "Update bad block table", lnvm_set_bbtbl)
+ )
+);
+
+#endif
+
+#include "define_cmd.h"