The branch main has been updated by chuck:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=6733401935f83754b4b2744bc3d33ef84b1271e0

commit 6733401935f83754b4b2744bc3d33ef84b1271e0
Author:     Chuck Tuffli <ch...@freebsd.org>
AuthorDate: 2021-01-08 17:19:37 +0000
Commit:     Chuck Tuffli <ch...@freebsd.org>
CommitDate: 2021-01-08 17:27:56 +0000

    nvmecontrol: add device self-test op and log page
    
    Add decoding of the Device Self-test log page and the ability to start
    or abort a test.
    
    Reviewed by:    imp, mav
    Tested by:      Muhammad Ahmad <muhammad.ah...@seagate.com>
    MFC after:      2 weeks
    Differential Revision: https://reviews.freebsd.org/D27517
---
 sbin/nvmecontrol/Makefile      |   1 +
 sbin/nvmecontrol/logpage.c     | 103 ++++++++++++++++++++++++++++++-
 sbin/nvmecontrol/nvmecontrol.8 |  23 +++++++
 sbin/nvmecontrol/selftest.c    | 137 +++++++++++++++++++++++++++++++++++++++++
 sys/dev/nvme/nvme.h            |  39 ++++++++++++
 5 files changed, 302 insertions(+), 1 deletion(-)

diff --git a/sbin/nvmecontrol/Makefile b/sbin/nvmecontrol/Makefile
index 71212930a6c4..b5ceb350ed0d 100644
--- a/sbin/nvmecontrol/Makefile
+++ b/sbin/nvmecontrol/Makefile
@@ -9,6 +9,7 @@ SRCS+=  devlist.c firmware.c format.c identify.c logpage.c ns.c 
nsid.c
 SRCS+= perftest.c power.c reset.c resv.c sanitize.c
 SRCS+= passthru.c
 SRCS+= identify_ext.c nvme_util.c nc_util.c
+SRCS+=  selftest.c
 MAN=   nvmecontrol.8
 LDFLAGS+= -rdynamic
 LIBADD+= util
diff --git a/sbin/nvmecontrol/logpage.c b/sbin/nvmecontrol/logpage.c
index 2f7cec005592..f00d5d94897b 100644
--- a/sbin/nvmecontrol/logpage.c
+++ b/sbin/nvmecontrol/logpage.c
@@ -239,6 +239,10 @@ read_logpage(int fd, uint8_t log_page, uint32_t nsid, 
uint8_t lsp,
        case NVME_LOG_CHANGED_NAMESPACE:
                nvme_ns_list_swapbytes((struct nvme_ns_list *)payload);
                break;
+       case NVME_LOG_DEVICE_SELF_TEST:
+               nvme_device_self_test_swapbytes(
+                   (struct nvme_device_self_test_page *)payload);
+               break;
        case NVME_LOG_COMMAND_EFFECT:
                nvme_command_effects_page_swapbytes(
                    (struct nvme_command_effects_page *)payload);
@@ -588,6 +592,103 @@ print_log_sanitize_status(const struct 
nvme_controller_data *cdata __unused,
        printf("Time For Crypto Erase No-Deallocate: %u sec\n", ss->etfcewnd);
 }
 
+static const char *
+self_test_res[] = {
+       [0] = "completed without error",
+       [1] = "aborted by a Device Self-test command",
+       [2] = "aborted by a Controller Level Reset",
+       [3] = "aborted due to namespace removal",
+       [4] = "aborted due to Format NVM command",
+       [5] = "failed due to fatal or unknown test error",
+       [6] = "completed with an unknown segment that failed",
+       [7] = "completed with one or more failed segments",
+       [8] = "aborted for unknown reason",
+       [9] = "aborted due to a sanitize operation",
+};
+static uint32_t self_test_res_max = nitems(self_test_res);
+
+static void
+print_log_self_test_status(const struct nvme_controller_data *cdata __unused,
+    void *buf, uint32_t size __unused)
+{
+       struct nvme_device_self_test_page *dst;
+       uint32_t r;
+
+       dst = buf;
+       printf("Device Self-test Status\n");
+       printf("=======================\n");
+
+       printf("Current Operation: ");
+       switch (dst->curr_operation) {
+       case 0x0:
+               printf("No device self-test operation in progress\n");
+               break;
+       case 0x1:
+               printf("Short device self-test operation in progress\n");
+               break;
+       case 0x2:
+               printf("Extended device self-test operation in progress\n");
+               break;
+       case 0xe:
+               printf("Vendor specific\n");
+               break;
+       default:
+               printf("Reserved (0x%x)\n", dst->curr_operation);
+       }
+
+       if (dst->curr_operation != 0)
+               printf("Current Completion: %u%%\n", dst->curr_compl & 0x7f);
+
+       printf("Results\n");
+       for (r = 0; r < 20; r++) {
+               uint64_t failing_lba;
+               uint8_t code, res;
+
+               code = (dst->result[r].status >> 4) & 0xf;
+               res  = dst->result[r].status & 0xf;
+
+               if (res == 0xf)
+                       continue;
+
+               printf("[%2u] ", r);
+               switch (code) {
+               case 0x1:
+                       printf("Short device self-test");
+                       break;
+               case 0x2:
+                       printf("Extended device self-test");
+                       break;
+               case 0xe:
+                       printf("Vendor specific");
+                       break;
+               default:
+                       printf("Reserved (0x%x)", code);
+               }
+               if (res < self_test_res_max)
+                       printf(" %s", self_test_res[res]);
+               else
+                       printf(" Reserved status 0x%x", res);
+
+               if (res == 7)
+                       printf(" starting in segment %u", 
dst->result[r].segment_num);
+
+#define BIT(b) (1 << (b))
+               if (dst->result[r].valid_diag_info & BIT(0))
+                       printf(" NSID=0x%x", dst->result[r].nsid);
+               if (dst->result[r].valid_diag_info & BIT(1)) {
+                       memcpy(&failing_lba, dst->result[r].failing_lba,
+                           sizeof(failing_lba));
+                       printf(" FLBA=0x%lx", failing_lba);
+               }
+               if (dst->result[r].valid_diag_info & BIT(2))
+                       printf(" SCT=0x%x", dst->result[r].status_code_type);
+               if (dst->result[r].valid_diag_info & BIT(3))
+                       printf(" SC=0x%x", dst->result[r].status_code);
+#undef BIT
+               printf("\n");
+       }
+}
+
 /*
  * Table of log page printer / sizing.
  *
@@ -611,7 +712,7 @@ NVME_LOGPAGE(ce,
     print_log_command_effects,         sizeof(struct 
nvme_command_effects_page));
 NVME_LOGPAGE(dst,
     NVME_LOG_DEVICE_SELF_TEST,         NULL,   "Device Self-test",
-    NULL,                              564);
+    print_log_self_test_status,                sizeof(struct 
nvme_device_self_test_page));
 NVME_LOGPAGE(thi,
     NVME_LOG_TELEMETRY_HOST_INITIATED, NULL,   "Telemetry Host-Initiated",
     NULL,                              DEFAULT_SIZE);
diff --git a/sbin/nvmecontrol/nvmecontrol.8 b/sbin/nvmecontrol/nvmecontrol.8
index 976532932a69..2d634eb54216 100644
--- a/sbin/nvmecontrol/nvmecontrol.8
+++ b/sbin/nvmecontrol/nvmecontrol.8
@@ -177,6 +177,10 @@
 .Op Fl p power_state
 .Op Fl w workload_hint
 .Nm
+.Ic selftest
+.Aq Fl c Ar code
+.Aq Ar device-id | Ar namespace-id
+.Nm
 .Ic wdc cap-diag
 .Op Fl o path_template
 .Aq Ar device-id
@@ -254,6 +258,8 @@ Firmware Information
 Changed Namespace List
 .It Dv Page 0x05
 Commands Supported and Effects
+.It Dv Page 0x06
+Device Self-test
 .It Dv Page 0x80
 Reservation Notification
 .It Dv Page 0x81
@@ -464,6 +470,23 @@ Run in
 mode.
 This will report status on a sanitize that is already running on the drive.
 .El
+.Ss selftest
+Start the specified device self-test:
+.Bl -tag -width 6n
+.It Fl c Ar code
+Specify the device self-test command code.
+Common codes are:
+.Bl -tag -compact -width 6n
+.It Dv 0x1
+Start a short device self-test operation
+.It Dv 0x2
+Start an extended device self-test operation
+.It Dv 0xe
+Start a vendor specific device self-test operation
+.It Dv 0xf
+Abort the device self-test operation
+.El
+.El
 .Ss wdc
 The various wdc command retrieve log data from the wdc/hgst drives.
 The
diff --git a/sbin/nvmecontrol/selftest.c b/sbin/nvmecontrol/selftest.c
new file mode 100644
index 000000000000..17945248f8e3
--- /dev/null
+++ b/sbin/nvmecontrol/selftest.c
@@ -0,0 +1,137 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2020 Chuck Tuffli
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/ioccom.h>
+
+#include <ctype.h>
+#include <err.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sysexits.h>
+#include <unistd.h>
+
+#include "nvmecontrol.h"
+
+#define SELFTEST_CODE_NONE 0xffu
+#define SELFTEST_CODE_MAX  0xfu
+
+static struct options {
+       const char      *dev;
+       uint8_t         stc;    /* Self-test Code */
+} opt = {
+       .dev = NULL,
+       .stc = SELFTEST_CODE_NONE,
+};
+
+static void
+selftest_op(int fd, uint32_t nsid, uint8_t stc)
+{
+       struct nvme_pt_command  pt;
+
+       memset(&pt, 0, sizeof(pt));
+       pt.cmd.opc = NVME_OPC_DEVICE_SELF_TEST;
+       pt.cmd.nsid = htole32(nsid);
+       pt.cmd.cdw10 = htole32(stc);
+
+       if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
+               err(EX_IOERR, "self-test request failed");
+
+       if (NVME_STATUS_GET_SCT(pt.cpl.status) == NVME_SCT_COMMAND_SPECIFIC &&
+           NVME_STATUS_GET_SC(pt.cpl.status) == NVME_SC_SELF_TEST_IN_PROGRESS)
+               errx(EX_UNAVAILABLE, "device self-test in progress");
+       else if (nvme_completion_is_error(&pt.cpl))
+               errx(EX_IOERR, "self-test request returned error");
+}
+
+static void
+selftest(const struct cmd *f, int argc, char *argv[])
+{
+       struct nvme_controller_data     cdata;
+       int                             fd;
+       char                            *path;
+       uint32_t                        nsid;
+
+       if (arg_parse(argc, argv, f))
+               return;
+
+       open_dev(opt.dev, &fd, 1, 1);
+       get_nsid(fd, &path, &nsid);
+       if (nsid != 0) {
+               close(fd);
+               open_dev(path, &fd, 1, 1);
+       }
+       free(path);
+
+       if (opt.stc == SELFTEST_CODE_NONE)
+               errx(EX_USAGE, "must specify a Self-test Code");
+       else if (opt.stc > SELFTEST_CODE_MAX)
+               errx(EX_DATAERR, "illegal Self-test Code 0x%x", opt.stc);
+
+       if (read_controller_data(fd, &cdata))
+               errx(EX_IOERR, "Identify request failed");
+
+       if (((cdata.oacs >> NVME_CTRLR_DATA_OACS_SELFTEST_SHIFT) &
+            NVME_CTRLR_DATA_OACS_SELFTEST_MASK) == 0)
+               errx(EX_UNAVAILABLE, "controller does not support self-test");
+
+       selftest_op(fd, nsid, opt.stc);
+
+       close(fd);
+       exit(0);
+}
+
+static const struct opts selftest_opts[] = {
+#define OPT(l, s, t, opt, addr, desc) { l, s, t, &opt.addr, desc }
+       OPT("test-code", 'c', arg_uint8, opt, stc,
+           "Self-test Code to execute"),
+       { NULL, 0, arg_none, NULL, NULL }
+};
+#undef OPT
+
+static struct args selftest_args[] = {
+       { arg_string, &opt.dev, "controller-id|namespace-id" },
+       { arg_none, NULL, NULL },
+};
+
+static struct cmd selftest_cmd = {
+       .name = "selftest",
+       .fn = selftest,
+       .descr = "Start device self-test",
+       .ctx_size = sizeof(opt),
+       .opts = selftest_opts,
+       .args = selftest_args,
+};
+
+CMD_COMMAND(selftest_cmd);
diff --git a/sys/dev/nvme/nvme.h b/sys/dev/nvme/nvme.h
index 3c159b1fd0fc..67d02ba73fd8 100644
--- a/sys/dev/nvme/nvme.h
+++ b/sys/dev/nvme/nvme.h
@@ -1396,6 +1396,28 @@ struct nvme_command_effects_page {
 _Static_assert(sizeof(struct nvme_command_effects_page) == 4096,
     "bad size for nvme_command_effects_page");
 
+struct nvme_device_self_test_page {
+       uint8_t                 curr_operation;
+       uint8_t                 curr_compl;
+       uint8_t                 rsvd2[2];
+       struct {
+               uint8_t         status;
+               uint8_t         segment_num;
+               uint8_t         valid_diag_info;
+               uint8_t         rsvd3;
+               uint64_t        poh;
+               uint32_t        nsid;
+               /* Define as an array to simplify alignment issues */
+               uint8_t         failing_lba[8];
+               uint8_t         status_code_type;
+               uint8_t         status_code;
+               uint8_t         vendor_specific[2];
+       } __packed result[20];
+} __packed __aligned(4);
+
+_Static_assert(sizeof(struct nvme_device_self_test_page) == 564,
+    "bad size for nvme_device_self_test_page");
+
 struct nvme_res_notification_page {
        uint64_t                log_page_count;
        uint8_t                 log_page_type;
@@ -2016,4 +2038,21 @@ void     nvme_resv_status_ext_swapbytes(struct 
nvme_resv_status_ext *s __unused,
 #endif
 }
 
+static inline void
+nvme_device_self_test_swapbytes(struct nvme_device_self_test_page *s __unused)
+{
+#if _BYTE_ORDER != _LITTLE_ENDIAN
+       uint64_t failing_lba;
+       uint32_t r;
+
+       for (r = 0; r < 20; r++) {
+               s->result[r].poh = le64toh(s->result[r].poh);
+               s->result[r].nsid = le32toh(s->result[r].nsid);
+               /* Unaligned 64-bit loads fail on some architectures */
+               memcpy(&failing_lba, s->result[r].failing_lba, 
sizeof(failing_lba));
+               failing_lba = le64toh(failing_lba);
+               memcpy(s->result[r].failing_lba, &failing_lba, 
sizeof(failing_lba));
+       }
+#endif
+}
 #endif /* __NVME_H__ */
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