Author: mav
Date: Tue Apr  2 19:37:52 2019
New Revision: 345815
URL: https://svnweb.freebsd.org/changeset/base/345815

Log:
  Make cam_error_print() decode NVMe commands.
  
  MFC after:    2 weeks

Modified:
  head/lib/libcam/Makefile
  head/sys/cam/cam.c
  head/sys/cam/nvme/nvme_all.c
  head/sys/cam/nvme/nvme_all.h
  head/sys/cam/nvme/nvme_xpt.c

Modified: head/lib/libcam/Makefile
==============================================================================
--- head/lib/libcam/Makefile    Tue Apr  2 19:20:55 2019        (r345814)
+++ head/lib/libcam/Makefile    Tue Apr  2 19:37:52 2019        (r345815)
@@ -4,7 +4,7 @@ PACKAGE=        lib${LIB}
 LIB=           cam
 SHLIBDIR?=     /lib
 SRCS=          camlib.c scsi_cmdparse.c scsi_all.c scsi_da.c scsi_sa.c cam.c \
-               ata_all.c smp_all.c
+               ata_all.c nvme_all.c smp_all.c
 INCS=          camlib.h
 
 LIBADD=                sbuf
@@ -38,6 +38,7 @@ MLINKS+=      cam.3 cam_open_device.3 \
 
 .PATH:         ${SRCTOP}/sys/cam \
                ${SRCTOP}/sys/cam/ata \
+               ${SRCTOP}/sys/cam/nvme \
                ${SRCTOP}/sys/cam/mmc \
                ${SRCTOP}/sys/cam/scsi
 

Modified: head/sys/cam/cam.c
==============================================================================
--- head/sys/cam/cam.c  Tue Apr  2 19:20:55 2019        (r345814)
+++ head/sys/cam/cam.c  Tue Apr  2 19:37:52 2019        (r345815)
@@ -415,7 +415,6 @@ cam_error_string(struct cam_device *device, union ccb 
                switch (ccb->ccb_h.func_code) {
                case XPT_ATA_IO:
                        ata_command_sbuf(&ccb->ataio, &sb);
-                       sbuf_printf(&sb, "\n");
                        break;
                case XPT_SCSI_IO:
 #ifdef _KERNEL
@@ -423,17 +422,22 @@ cam_error_string(struct cam_device *device, union ccb 
 #else /* !_KERNEL */
                        scsi_command_string(device, &ccb->csio, &sb);
 #endif /* _KERNEL/!_KERNEL */
-                       sbuf_printf(&sb, "\n");
                        break;
                case XPT_SMP_IO:
                        smp_command_sbuf(&ccb->smpio, &sb, path_str, 79 -
                                         strlen(path_str), (proto_flags &
                                         CAM_ESMF_PRINT_FULL_CMD) ? 79 : 0);
-                       sbuf_printf(&sb, "\n");
                        break;
+               case XPT_NVME_IO:
+               case XPT_NVME_ADMIN:
+                       nvme_command_sbuf(&ccb->nvmeio, &sb);
+                       break;
                default:
+                       sbuf_printf(&sb, "CAM func %#x",
+                           ccb->ccb_h.func_code);
                        break;
                }
+               sbuf_printf(&sb, "\n");
        }
 
        if (flags & CAM_ESF_CAM_STATUS) {

Modified: head/sys/cam/nvme/nvme_all.c
==============================================================================
--- head/sys/cam/nvme/nvme_all.c        Tue Apr  2 19:20:55 2019        
(r345814)
+++ head/sys/cam/nvme/nvme_all.c        Tue Apr  2 19:37:52 2019        
(r345815)
@@ -111,37 +111,84 @@ nvme_opc2str[] = {
        "COMPARE",
        "RSVD-6",
        "RSVD-7",
-       "DATASET_MANAGEMENT"
+       "WRITE_ZEROES",
+       "DATASET_MANAGEMENT",
+       "RSVD-a",
+       "RSVD-b",
+       "RSVD-c",
+       "RESERVATION_REGISTER",
+       "RESERVATION_REPORT",
+       "RSVD-f",
+       "RSVD-10",
+       "RESERVATION_ACQUIRE",
+       "RSVD-12",
+       "RSVD-13",
+       "RSVD-14",
+       "RESERVATION_RELEASE",
 };
 
 const char *
-nvme_op_string(const struct nvme_command *cmd)
+nvme_op_string(const struct nvme_command *cmd, int admin)
 {
 
-       if (cmd->opc >= nitems(nvme_opc2str))
-               return "UNKNOWN";
-
-       return nvme_opc2str[cmd->opc];
+       if (admin) {
+               return "ADMIN";
+       } else {
+               if (cmd->opc >= nitems(nvme_opc2str))
+                       return "UNKNOWN";
+               return nvme_opc2str[cmd->opc];
+       }
 }
 
 const char *
 nvme_cmd_string(const struct nvme_command *cmd, char *cmd_string, size_t len)
 {
+       struct sbuf sb;
+       int error;
 
+       if (len == 0)
+               return ("");
+
+       sbuf_new(&sb, cmd_string, len, SBUF_FIXEDLEN);
+       nvme_cmd_sbuf(cmd, &sb);
+
+       error = sbuf_finish(&sb);
+       if (error != 0 && error != ENOMEM)
+               return ("");
+
+       return(sbuf_data(&sb));
+}
+
+void
+nvme_cmd_sbuf(const struct nvme_command *cmd, struct sbuf *sb)
+{
+
        /*
         * cid, rsvd areas and mptr not printed, since they are used
         * only internally by the SIM.
         */
-       snprintf(cmd_string, len,
+       sbuf_printf(sb,
            "opc=%x fuse=%x nsid=%x prp1=%llx prp2=%llx cdw=%x %x %x %x %x %x",
            cmd->opc, cmd->fuse, cmd->nsid,
            (unsigned long long)cmd->prp1, (unsigned long long)cmd->prp2,
            cmd->cdw10, cmd->cdw11, cmd->cdw12,
            cmd->cdw13, cmd->cdw14, cmd->cdw15);
+}
 
-       return cmd_string;
+/*
+ * nvme_command_sbuf() returns 0 for success and -1 for failure.
+ */
+int
+nvme_command_sbuf(struct ccb_nvmeio *nvmeio, struct sbuf *sb)
+{
+
+       sbuf_printf(sb, "%s. NCB: ", nvme_op_string(&nvmeio->cmd,
+           nvmeio->ccb_h.func_code == XPT_NVME_ADMIN));
+       nvme_cmd_sbuf(&nvmeio->cmd, sb);
+       return(0);
 }
 
+#ifdef _KERNEL
 const void *
 nvme_get_identify_cntrl(struct cam_periph *periph)
 {
@@ -161,3 +208,4 @@ nvme_get_identify_ns(struct cam_periph *periph)
 
        return device->nvme_data;
 }
+#endif

Modified: head/sys/cam/nvme/nvme_all.h
==============================================================================
--- head/sys/cam/nvme/nvme_all.h        Tue Apr  2 19:20:55 2019        
(r345814)
+++ head/sys/cam/nvme/nvme_all.h        Tue Apr  2 19:37:52 2019        
(r345815)
@@ -42,8 +42,10 @@ int  nvme_identify_match(caddr_t identbuffer, caddr_t t
 
 struct sbuf;
 void   nvme_print_ident(const struct nvme_controller_data *, const struct 
nvme_namespace_data *, struct sbuf *);
-const char *nvme_op_string(const struct nvme_command *);
+const char *nvme_op_string(const struct nvme_command *, int admin);
 const char *nvme_cmd_string(const struct nvme_command *, char *, size_t);
+void nvme_cmd_sbuf(const struct nvme_command *, struct sbuf *sb);
+int nvme_command_sbuf(struct ccb_nvmeio *nvmeio, struct sbuf *sb);
 const void *nvme_get_identify_cntrl(struct cam_periph *);
 const void *nvme_get_identify_ns(struct cam_periph *);
 

Modified: head/sys/cam/nvme/nvme_xpt.c
==============================================================================
--- head/sys/cam/nvme/nvme_xpt.c        Tue Apr  2 19:20:55 2019        
(r345814)
+++ head/sys/cam/nvme/nvme_xpt.c        Tue Apr  2 19:37:52 2019        
(r345815)
@@ -769,11 +769,13 @@ nvme_proto_debug_out(union ccb *ccb)
 {
        char cdb_str[(sizeof(struct nvme_command) * 3) + 1];
 
-       if (ccb->ccb_h.func_code != XPT_NVME_IO)
+       if (ccb->ccb_h.func_code != XPT_NVME_IO ||
+           ccb->ccb_h.func_code != XPT_NVME_ADMIN)
                return;
 
        CAM_DEBUG(ccb->ccb_h.path,
-           CAM_DEBUG_CDB,("%s. NCB: %s\n", nvme_op_string(&ccb->nvmeio.cmd),
+           CAM_DEBUG_CDB,("%s. NCB: %s\n", nvme_op_string(&ccb->nvmeio.cmd,
+               ccb->ccb_h.func_code == XPT_NVME_ADMIN),
                nvme_cmd_string(&ccb->nvmeio.cmd, cdb_str, sizeof(cdb_str))));
 }
 


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