sd-cmds-in-driver-and-transport.d

#!/usr/sbin/dtrace -Cs
#include <sys/scsi/scsi_pkt.h> /* command completion defines */
#pragma D option quiet

#define SD_TO_DEVINFO(un)	((struct dev_info *)((un)->un_sd->sd_dev))
#define DEV_NAME(un) \
      stringof(`devnamesp[SD_TO_DEVINFO(un)->devi_major].dn_name) /* ` */
#define DEV_INST(un)		(SD_TO_DEVINFO(un)->devi_instance)
#define	SD_GET_XBUF(bp)		((struct sd_xbuf *)((bp)->b_private))
#define	SD_GET_UN(bp)		((SD_GET_XBUF(bp))->xb_un)
#define PKT_REASON(pktp)	(pktp->pkt_reason)

string rnames[25];

BEGIN {
    rnames[CMD_CMPLT]           = "completed";
    rnames[CMD_INCOMPLETE]      = "incomplete";
    rnames[CMD_DMA_DERR]        = "dma direction error";
    rnames[CMD_TRAN_ERR]        = "unspecified xfer error";
    rnames[CMD_RESET]           = "target hard reset";
    rnames[CMD_ABORTED]         = "command transport aborted";
    rnames[CMD_TIMEOUT]         = "command timed out";
    rnames[CMD_DATA_OVR]        = "data overrun";
    rnames[CMD_CMD_OVR]         = "command overrun";
    rnames[CMD_STS_OVR]         = "status overrun";
    rnames[CMD_TERMINATED]      = "command transport terminated";
    rnames[CMD_TLR_OFF]         = "do not support TLR";
}

:sd:sdintr:entry {
    this->bp                    = (struct buf *)args[0]->pkt_private;
    this->un                    = SD_GET_UN(this->bp);
    this->un_ncmds_in_driver    = this->un->un_ncmds_in_driver;
    this->un_ncmds_in_transport = this->un->un_ncmds_in_transport;
    this->devname               = DEV_NAME(this->un);
    this->inst                  = DEV_INST(this->un);
    @in_drv[this->devname, this->inst] \
                                = quantize(this->un_ncmds_in_driver);
    @in_tran[this->devname, this->inst] \
                                = quantize(this->un_ncmds_in_transport);
    this->reason_str = rnames[PKT_REASON(args[0])] == "" ? 
                              "unspecified": 
                              rnames[PKT_REASON(args[0])];
    @reason[this->devname, this->inst, this->reason_str] \
                                = count();
}
END {
    printa("\tin-driver (%s%d) %@d\n", @in_drv);
    printa("\tin-transport (%s%d) %@d\n", @in_tran);
    printf("device  \treason  \tcount\n");
    printf("------  \t------  \t-----\n");
    printa("%s%-8d\t%-8s\t%-8@d\n", @reason);
}