mptscsih.c

linux 内核源代码

	if (ioc->bus_type != SAS)
		return;

	/* Not supported for hidden raid components
	 */
	if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT)
		return;

	if ((mf = mpt_get_msg_frame(ioc->InternalCtx, ioc)) == NULL) {
		dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s: no msg frames!!\n",
		    ioc->name,__FUNCTION__));
		return;
	}

	SEPMsg = (SEPRequest_t *)mf;
	SEPMsg->Function = MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
	SEPMsg->Bus = vtarget->channel;
	SEPMsg->TargetID = vtarget->id;
	SEPMsg->Action = MPI_SEP_REQ_ACTION_WRITE_STATUS;
	SEPMsg->SlotStatus = SlotStatus;
	devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT
	    "Sending SEP cmd=%x channel=%d id=%d\n",
	    ioc->name, SlotStatus, SEPMsg->Bus, SEPMsg->TargetID));
	mpt_put_msg_frame(ioc->DoneCtx, ioc, mf);
}

#ifdef CONFIG_FUSION_LOGGING
/**
 *	mptscsih_info_scsiio - debug print info on reply frame
 *	@ioc: Pointer to MPT_ADAPTER structure
 *	@sc: original scsi cmnd pointer
 *	@pScsiReply: Pointer to MPT reply frame
 *
 *	MPT_DEBUG_REPLY needs to be enabled to obtain this info
 *
 *	Refer to lsi/mpi.h.
 **/
static void
mptscsih_info_scsiio(MPT_ADAPTER *ioc, struct scsi_cmnd *sc, SCSIIOReply_t * pScsiReply)
{
	char	*desc = NULL;
	char	*desc1 = NULL;
	u16	ioc_status;
	u8	skey, asc, ascq;

	ioc_status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;

	switch (ioc_status) {

	case MPI_IOCSTATUS_SUCCESS:
		desc = "success";
		break;
	case MPI_IOCSTATUS_SCSI_INVALID_BUS:
		desc = "invalid bus";
		break;
	case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
		desc = "invalid target_id";
		break;
	case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
		desc = "device not there";
		break;
	case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
		desc = "data overrun";
		break;
	case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
		desc = "data underrun";
		break;
	case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
		desc = "I/O data error";
		break;
	case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
		desc = "protocol error";
		break;
	case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
		desc = "task terminated";
		break;
	case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
		desc = "residual mismatch";
		break;
	case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
		desc = "task management failed";
		break;
	case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
		desc = "IOC terminated";
		break;
	case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
		desc = "ext terminated";
		break;
	default:
		desc = "";
		break;
	}

	switch (pScsiReply->SCSIStatus)
	{

	case MPI_SCSI_STATUS_SUCCESS:
		desc1 = "success";
		break;
	case MPI_SCSI_STATUS_CHECK_CONDITION:
		desc1 = "check condition";
		break;
	case MPI_SCSI_STATUS_CONDITION_MET:
		desc1 = "condition met";
		break;
	case MPI_SCSI_STATUS_BUSY:
		desc1 = "busy";
		break;
	case MPI_SCSI_STATUS_INTERMEDIATE:
		desc1 = "intermediate";
		break;
	case MPI_SCSI_STATUS_INTERMEDIATE_CONDMET:
		desc1 = "intermediate condmet";
		break;
	case MPI_SCSI_STATUS_RESERVATION_CONFLICT:
		desc1 = "reservation conflict";
		break;
	case MPI_SCSI_STATUS_COMMAND_TERMINATED:
		desc1 = "command terminated";
		break;
	case MPI_SCSI_STATUS_TASK_SET_FULL:
		desc1 = "task set full";
		break;
	case MPI_SCSI_STATUS_ACA_ACTIVE:
		desc1 = "aca active";
		break;
	case MPI_SCSI_STATUS_FCPEXT_DEVICE_LOGGED_OUT:
		desc1 = "fcpext device logged out";
		break;
	case MPI_SCSI_STATUS_FCPEXT_NO_LINK:
		desc1 = "fcpext no link";
		break;
	case MPI_SCSI_STATUS_FCPEXT_UNASSIGNED:
		desc1 = "fcpext unassigned";
		break;
	default:
		desc1 = "";
		break;
	}

	scsi_print_command(sc);
	printk(MYIOC_s_DEBUG_FMT "\tfw_channel = %d, fw_id = %d\n",
	    ioc->name, pScsiReply->Bus, pScsiReply->TargetID);
	printk(MYIOC_s_DEBUG_FMT "\trequest_len = %d, underflow = %d, "
	    "resid = %d\n", ioc->name, scsi_bufflen(sc), sc->underflow,
	    scsi_get_resid(sc));
	printk(MYIOC_s_DEBUG_FMT "\ttag = %d, transfer_count = %d, "
	    "sc->result = %08X\n", ioc->name, le16_to_cpu(pScsiReply->TaskTag),
	    le32_to_cpu(pScsiReply->TransferCount), sc->result);
	printk(MYIOC_s_DEBUG_FMT "\tiocstatus = %s (0x%04x), "
	    "scsi_status = %s (0x%02x), scsi_state = (0x%02x)\n",
	    ioc->name, desc, ioc_status, desc1, pScsiReply->SCSIStatus,
	    pScsiReply->SCSIState);

	if (pScsiReply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
		skey = sc->sense_buffer[2] & 0x0F;
		asc = sc->sense_buffer[12];
		ascq = sc->sense_buffer[13];

		printk(MYIOC_s_DEBUG_FMT "\t[sense_key,asc,ascq]: "
		    "[0x%02x,0x%02x,0x%02x]\n", ioc->name, skey, asc, ascq);
	}

	/*
	 *  Look for + dump FCP ResponseInfo[]!
	 */
	if (pScsiReply->SCSIState & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
	    pScsiReply->ResponseInfo)
		printk(MYIOC_s_DEBUG_FMT "response_info = %08xh\n",
		    ioc->name, le32_to_cpu(pScsiReply->ResponseInfo));
}
#endif

/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
 *	mptscsih_io_done - Main SCSI IO callback routine registered to
 *	Fusion MPT (base) driver
 *	@ioc: Pointer to MPT_ADAPTER structure
 *	@mf: Pointer to original MPT request frame
 *	@r: Pointer to MPT reply frame (NULL if TurboReply)
 *
 *	This routine is called from mpt.c::mpt_interrupt() at the completion
 *	of any SCSI IO request.
 *	This routine is registered with the Fusion MPT (base) driver at driver
 *	load/init time via the mpt_register() API call.
 *
 *	Returns 1 indicating alloc'd request frame ptr should be freed.
 */
int
mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
{
	struct scsi_cmnd	*sc;
	MPT_SCSI_HOST	*hd;
	SCSIIORequest_t	*pScsiReq;
	SCSIIOReply_t	*pScsiReply;
	u16		 req_idx, req_idx_MR;
	VirtDevice	 *vdevice;
	VirtTarget	 *vtarget;

	hd = shost_priv(ioc->sh);
	req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
	req_idx_MR = (mr != NULL) ?
	    le16_to_cpu(mr->u.frame.hwhdr.msgctxu.fld.req_idx) : req_idx;
	if ((req_idx != req_idx_MR) ||
	    (mf->u.frame.linkage.arg1 == 0xdeadbeaf)) {
		printk(MYIOC_s_ERR_FMT "Received a mf that was already freed\n",
		    ioc->name);
		printk (MYIOC_s_ERR_FMT
		    "req_idx=%x req_idx_MR=%x mf=%p mr=%p sc=%p\n",
		    ioc->name, req_idx, req_idx_MR, mf, mr,
		    mptscsih_get_scsi_lookup(ioc, req_idx_MR));
		return 0;
	}

	sc = mptscsih_getclear_scsi_lookup(ioc, req_idx);
	if (sc == NULL) {
		MPIHeader_t *hdr = (MPIHeader_t *)mf;

		/* Remark: writeSDP1 will use the ScsiDoneCtx
		 * If a SCSI I/O cmd, device disabled by OS and
		 * completion done. Cannot touch sc struct. Just free mem.
		 */
		if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST)
			printk(MYIOC_s_ERR_FMT "NULL ScsiCmd ptr!\n",
			ioc->name);

		mptscsih_freeChainBuffers(ioc, req_idx);
		return 1;
	}

	if ((unsigned char *)mf != sc->host_scribble) {
		mptscsih_freeChainBuffers(ioc, req_idx);
		return 1;
	}

	sc->host_scribble = NULL;
	sc->result = DID_OK << 16;		/* Set default reply as OK */
	pScsiReq = (SCSIIORequest_t *) mf;
	pScsiReply = (SCSIIOReply_t *) mr;

	if((ioc->facts.MsgVersion >= MPI_VERSION_01_05) && pScsiReply){
		dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
			"ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d,task-tag=%d)\n",
			ioc->name, mf, mr, sc, req_idx, pScsiReply->TaskTag));
	}else{
		dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT
			"ScsiDone (mf=%p,mr=%p,sc=%p,idx=%d)\n",
			ioc->name, mf, mr, sc, req_idx));
	}

	if (pScsiReply == NULL) {
		/* special context reply handling */
		;
	} else {
		u32	 xfer_cnt;
		u16	 status;
		u8	 scsi_state, scsi_status;
		u32	 log_info;

		status = le16_to_cpu(pScsiReply->IOCStatus) & MPI_IOCSTATUS_MASK;
		scsi_state = pScsiReply->SCSIState;
		scsi_status = pScsiReply->SCSIStatus;
		xfer_cnt = le32_to_cpu(pScsiReply->TransferCount);
		scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
		log_info = le32_to_cpu(pScsiReply->IOCLogInfo);

		/*
		 *  if we get a data underrun indication, yet no data was
		 *  transferred and the SCSI status indicates that the
		 *  command was never started, change the data underrun
		 *  to success
		 */
		if (status == MPI_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
		    (scsi_status == MPI_SCSI_STATUS_BUSY ||
		     scsi_status == MPI_SCSI_STATUS_RESERVATION_CONFLICT ||
		     scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)) {
			status = MPI_IOCSTATUS_SUCCESS;
		}

		if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)
			mptscsih_copy_sense_data(sc, hd, mf, pScsiReply);

		/*
		 *  Look for + dump FCP ResponseInfo[]!
		 */
		if (scsi_state & MPI_SCSI_STATE_RESPONSE_INFO_VALID &&
		    pScsiReply->ResponseInfo) {
			printk(MYIOC_s_NOTE_FMT "[%d:%d:%d:%d] "
			"FCP_ResponseInfo=%08xh\n", ioc->name,
			sc->device->host->host_no, sc->device->channel,
			sc->device->id, sc->device->lun,
			le32_to_cpu(pScsiReply->ResponseInfo));
		}

		switch(status) {
		case MPI_IOCSTATUS_BUSY:			/* 0x0002 */
			/* CHECKME!
			 * Maybe: DRIVER_BUSY | SUGGEST_RETRY | DID_SOFT_ERROR (retry)
			 * But not: DID_BUS_BUSY lest one risk
			 * killing interrupt handler:-(
			 */
			sc->result = SAM_STAT_BUSY;
			break;

		case MPI_IOCSTATUS_SCSI_INVALID_BUS:		/* 0x0041 */
		case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:	/* 0x0042 */
			sc->result = DID_BAD_TARGET << 16;
			break;

		case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:	/* 0x0043 */
			/* Spoof to SCSI Selection Timeout! */
			if (ioc->bus_type != FC)
				sc->result = DID_NO_CONNECT << 16;
			/* else fibre, just stall until rescan event */
			else
				sc->result = DID_REQUEUE << 16;

			if (hd->sel_timeout[pScsiReq->TargetID] < 0xFFFF)
				hd->sel_timeout[pScsiReq->TargetID]++;

			vdevice = sc->device->hostdata;
			if (!vdevice)
				break;
			vtarget = vdevice->vtarget;
			if (vtarget->tflags & MPT_TARGET_FLAGS_LED_ON) {
				mptscsih_issue_sep_command(ioc, vtarget,
				    MPI_SEP_REQ_SLOTSTATUS_UNCONFIGURED);
				vtarget->tflags &= ~MPT_TARGET_FLAGS_LED_ON;
			}
			break;

		case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:		/* 0x004B */
			if ( ioc->bus_type == SAS ) {
				u16 ioc_status = le16_to_cpu(pScsiReply->IOCStatus);
				if (ioc_status & MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) {
					if ((log_info & SAS_LOGINFO_MASK)
					    == SAS_LOGINFO_NEXUS_LOSS) {
						sc->result = (DID_BUS_BUSY << 16);
						break;
					}
				}
			} else if (ioc->bus_type == FC) {
				/*
				 * The FC IOC may kill a request for variety of
				 * reasons, some of which may be recovered by a
				 * retry, some which are unlikely to be
				 * recovered. Return DID_ERROR instead of
				 * DID_RESET to permit retry of the command,
				 * just not an infinite number of them
				 */
				sc->result = DID_ERROR << 16;
				break;
			}

			/*
			 * Allow non-SAS & non-NEXUS_LOSS to drop into below code
			 */

		case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:	/* 0x0048 */
		case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:		/* 0x004C */
			/* Linux handles an unsolicited DID_RESET better
			 * than an unsolicited DID_ABORT.
			 */
			sc->result = DID_RESET << 16;

			break;

		case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:	/* 0x0049 */
			scsi_set_resid(sc, scsi_bufflen(sc) - xfer_cnt);
			if((xfer_cnt==0)||(sc->underflow > xfer_cnt))
				sc->result=DID_SOFT_ERROR << 16;
			else /* Sufficient data transfer occurred */
				sc->result = (DID_OK << 16) | scsi_status;
			dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
			    "RESIDUAL_MISMATCH: result=%x on channel=%d id=%d\n",
			    ioc->name, sc->result, sc->device->channel, sc->device->id));
			break;

		case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:		/* 0x0045 */
			/*
			 *  Do upfront check for valid SenseData and give it
			 *  precedence!
			 */
			sc->result = (DID_OK << 16) | scsi_status;
			if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID) {
				/* Have already saved the status and sense data
				 */
				;
			} else {
				if (xfer_cnt < sc->underflow) {
					if (scsi_status == SAM_STAT_BUSY)
						sc->result = SAM_STAT_BUSY;
					else
						sc->result = DID_SOFT_ERROR << 16;
				}
				if (scsi_state & (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)) {
					/* What to do?
				 	*/
					sc->result = DID_SOFT_ERROR << 16;
				}
				else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
					/*  Not real sure here either...  */
					sc->result = DID_RESET << 16;
				}
			}


			dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
			    "  sc->underflow={report ERR if < %02xh bytes xfer'd}\n",
			    ioc->name, sc->underflow));
			dreplyprintk(ioc, printk(MYIOC_s_DEBUG_FMT
			    "  ActBytesXferd=%02xh\n", ioc->name, xfer_cnt));

			/* Report Queue Full
			 */
			if (scsi_status == MPI_SCSI_STATUS_TASK_SET_FULL)
				mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);

			break;

		case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:		/* 0x0044 */
			scsi_set_resid(sc, 0);
		case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:	/* 0x0040 */
		case MPI_IOCSTATUS_SUCCESS:			/* 0x0000 */
			sc->result = (DID_OK << 16) | scsi_status;
			if (scsi_state == 0) {
				;
			} else if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID) {
				/*
				 * If running against circa 200003dd 909 MPT f/w,
				 * may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL
				 * (QUEUE_FULL) returned from device! --> get 0x0000?128
				 * and with SenseBytes set to 0.
				 */
				if (pScsiReply->SCSIStatus == MPI_SCSI_STATUS_TASK_SET_FULL)
					mptscsih_report_queue_full(sc, pScsiReply, pScsiReq);

			}
			else if (scsi_state &
			         (MPI_SCSI_STATE_AUTOSENSE_FAILED | MPI_SCSI_STATE_NO_SCSI_STATUS)
			   ) {
				/*
				 * What to do?
				 */
				sc->result = DID_SOFT_ERROR << 16;
			}
			else if (scsi_state & MPI_SCSI_STATE_TERMINATED) {
				/*  Not real sure here either...  */
				sc->result = DID_RESET << 16;
			}
			else if (scsi_state & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) {