diff options
author | jimharris <jimharris@FreeBSD.org> | 2013-04-12 17:56:47 +0000 |
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committer | jimharris <jimharris@FreeBSD.org> | 2013-04-12 17:56:47 +0000 |
commit | c0e542217e211e45e688b76358f942b60a127c55 (patch) | |
tree | e1586e8f7ddadff4c2f5c332a1589211f511ba56 /sbin/nvmecontrol | |
parent | eee11f2f3d01e1420881213fc8adef67ec6cdd33 (diff) | |
download | FreeBSD-src-c0e542217e211e45e688b76358f942b60a127c55.zip FreeBSD-src-c0e542217e211e45e688b76358f942b60a127c55.tar.gz |
Remove the NVME_IDENTIFY_CONTROLLER and NVME_IDENTIFY_NAMESPACE IOCTLs and replace
them with the NVMe passthrough equivalent.
Sponsored by: Intel
Diffstat (limited to 'sbin/nvmecontrol')
-rw-r--r-- | sbin/nvmecontrol/nvmecontrol.c | 120 |
1 files changed, 86 insertions, 34 deletions
diff --git a/sbin/nvmecontrol/nvmecontrol.c b/sbin/nvmecontrol/nvmecontrol.c index cbb365b..fd55b42 100644 --- a/sbin/nvmecontrol/nvmecontrol.c +++ b/sbin/nvmecontrol/nvmecontrol.c @@ -210,6 +210,53 @@ ns_get_sector_size(struct nvme_namespace_data *nsdata) return (1 << nsdata->lbaf[0].lbads); } +static void +read_controller_data(int fd, struct nvme_controller_data *cdata) +{ + struct nvme_pt_command pt; + + memset(&pt, 0, sizeof(pt)); + pt.cmd.opc = NVME_OPC_IDENTIFY; + pt.cmd.cdw10 = 1; + pt.buf = cdata; + pt.len = sizeof(*cdata); + pt.is_read = 1; + + if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0) { + printf("Identify request failed. errno=%d (%s)\n", + errno, strerror(errno)); + exit(EX_IOERR); + } + + if (nvme_completion_is_error(&pt.cpl)) { + printf("Passthrough command returned error.\n"); + exit(EX_IOERR); + } +} + +static void +read_namespace_data(int fd, int nsid, struct nvme_namespace_data *nsdata) +{ + struct nvme_pt_command pt; + + memset(&pt, 0, sizeof(pt)); + pt.cmd.opc = NVME_OPC_IDENTIFY; + pt.cmd.nsid = nsid; + pt.buf = nsdata; + pt.len = sizeof(*nsdata); + pt.is_read = 1; + + if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0) { + printf("Identify request failed. errno=%d (%s)\n", + errno, strerror(errno)); + exit(EX_IOERR); + } + + if (nvme_completion_is_error(&pt.cpl)) { + printf("Passthrough command returned error.\n"); + exit(EX_IOERR); + } +} static void devlist(int argc, char *argv[]) @@ -251,33 +298,12 @@ devlist(int argc, char *argv[]) continue; } - if (ioctl(fd, NVME_IDENTIFY_CONTROLLER, &cdata) < 0) { - printf("Identify request to %s failed. errno=%d (%s)\n", - path, errno, strerror(errno)); - exit_code = EX_IOERR; - continue; - } - + read_controller_data(fd, &cdata); printf("%6s: %s\n", name, cdata.mn); for (i = 0; i < cdata.nn; i++) { sprintf(name, "nvme%dns%d", ctrlr, i+1); - sprintf(path, "/dev/%s", name); - - fd = open(path, O_RDWR); - if (fd < 0) { - printf("Could not open %s. errno=%d (%s)\n", - path, errno, strerror(errno)); - exit_code = EX_NOPERM; - continue; - } - if (ioctl(fd, NVME_IDENTIFY_NAMESPACE, &nsdata) < 0) { - printf("Identify request to %s failed. " - "errno=%d (%s)\n", path, errno, - strerror(errno)); - exit_code = EX_IOERR; - continue; - } + read_namespace_data(fd, i+1, &nsdata); printf(" %10s (%lldGB)\n", name, nsdata.nsze * @@ -329,11 +355,7 @@ identify_ctrlr(int argc, char *argv[]) exit(EX_NOPERM); } - if (ioctl(fd, NVME_IDENTIFY_CONTROLLER, &cdata) < 0) { - printf("Identify request to %s failed. errno=%d (%s)\n", path, - errno, strerror(errno)); - exit(EX_IOERR); - } + read_controller_data(fd, &cdata); if (hexflag == 1) { if (verboseflag == 1) @@ -360,7 +382,8 @@ identify_ns(int argc, char *argv[]) struct nvme_namespace_data nsdata; struct stat devstat; char path[64]; - int ch, fd, hexflag = 0, hexlength; + char *nsloc; + int ch, fd, hexflag = 0, hexlength, nsid; int verboseflag = 0; while ((ch = getopt(argc, argv, "vx")) != -1) { @@ -376,8 +399,41 @@ identify_ns(int argc, char *argv[]) } } + /* + * Check if the specified device node exists before continuing. + * This is a cleaner check for cases where the correct controller + * is specified, but an invalid namespace on that controller. + */ sprintf(path, "/dev/%s", argv[optind]); + if (stat(path, &devstat) < 0) { + printf("Invalid device node %s. errno=%d (%s)\n", path, errno, + strerror(errno)); + exit(EX_IOERR); + } + nsloc = strstr(argv[optind], "ns"); + if (nsloc == NULL) { + printf("Invalid namepsace %s.\n", argv[optind]); + exit(EX_IOERR); + } + + /* + * Pull the namespace id from the string. +2 skips past the "ns" part + * of the string. + */ + nsid = strtol(nsloc + 2, NULL, 10); + if (nsid == 0 && errno != 0) { + printf("Invalid namespace ID %s.\n", argv[optind]); + exit(EX_IOERR); + } + + /* + * We send IDENTIFY commands to the controller, not the namespace, + * since it is an admin cmd. So the path should only include the + * nvmeX part of the nvmeXnsY string. + */ + sprintf(path, "/dev/"); + strncat(path, argv[optind], nsloc - argv[optind]); if (stat(path, &devstat) < 0) { printf("Invalid device node %s. errno=%d (%s)\n", path, errno, strerror(errno)); @@ -391,11 +447,7 @@ identify_ns(int argc, char *argv[]) exit(EX_NOPERM); } - if (ioctl(fd, NVME_IDENTIFY_NAMESPACE, &nsdata) < 0) { - printf("Identify request to %s failed. errno=%d (%s)\n", path, - errno, strerror(errno)); - exit(EX_IOERR); - } + read_namespace_data(fd, nsid, &nsdata); if (hexflag == 1) { if (verboseflag == 1) |