Пример #1
0
int
qla2x00_request_irqs(scsi_qla_host_t *ha)
{
	int ret;

	/* If possible, enable MSI-X. */
	if (!IS_QLA2432(ha))
		goto skip_msix;

        if (ha->chip_revision < QLA_MSIX_CHIP_REV_24XX ||
	    !QLA_MSIX_FW_MODE_1(ha->fw_attributes)) {
		DEBUG2(qla_printk(KERN_WARNING, ha,
		    "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n",
		    ha->chip_revision, ha->fw_attributes));

		goto skip_msix;
	}

	ret = qla24xx_enable_msix(ha);
	if (!ret) {
		DEBUG2(qla_printk(KERN_INFO, ha,
		    "MSI-X: Enabled (0x%X, 0x%X).\n", ha->chip_revision,
		    ha->fw_attributes));
		return ret;
	}
	qla_printk(KERN_WARNING, ha,
	    "MSI-X: Falling back-to INTa mode -- %d.\n", ret);
skip_msix:

	if (!IS_QLA24XX(ha))
		goto skip_msi;

	ret = pci_enable_msi(ha->pdev);
	if (!ret) {
		DEBUG2(qla_printk(KERN_INFO, ha, "MSI: Enabled.\n"));
		ha->flags.msi_enabled = 1;
	}
skip_msi:

	ret = request_irq(ha->pdev->irq, ha->isp_ops.intr_handler,
	    IRQF_DISABLED|IRQF_SHARED, QLA2XXX_DRIVER_NAME, ha);
	if (!ret) {
		ha->flags.inta_enabled = 1;
		ha->host->irq = ha->pdev->irq;
	} else {
		qla_printk(KERN_WARNING, ha,
		    "Failed to reserve interrupt %d already in use.\n",
		    ha->pdev->irq);
	}

	return ret;
}
Пример #2
0
/**
 * qla2x00_ms_entry() - Process a Management Server entry.
 * @ha: SCSI driver HA context
 * @index: Response queue out pointer
 */
static void
qla2x00_ms_entry(scsi_qla_host_t *ha, ms_iocb_entry_t *pkt) 
{
	srb_t          *sp;

	DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n",
	    __func__, ha->host_no, pkt, pkt->handle1));

	/* Validate handle. */
 	if (pkt->handle1 < MAX_OUTSTANDING_COMMANDS)
 		sp = ha->outstanding_cmds[pkt->handle1];
	else
		sp = NULL;

	if (sp == NULL) {
		DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n",
		    ha->host_no));
		qla_printk(KERN_WARNING, ha, "MS entry - invalid handle\n");

		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
		return;
	}

	CMD_COMPL_STATUS(sp->cmd) = le16_to_cpu(pkt->status);
	CMD_ENTRY_STATUS(sp->cmd) = pkt->entry_status;

	/* Free outstanding command slot. */
	ha->outstanding_cmds[pkt->handle1] = 0;

	add_to_done_queue(ha, sp);
}
Пример #3
0
/**
 * qla2x00_error_entry() - Process an error entry.
 * @ha: SCSI driver HA context
 * @pkt: Entry pointer
 */
static void
qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) 
{
	srb_t *sp;

#if defined(QL_DEBUG_LEVEL_2)
	if (pkt->entry_status & RF_INV_E_ORDER)
		qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__);
	else if (pkt->entry_status & RF_INV_E_COUNT)
		qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__);
	else if (pkt->entry_status & RF_INV_E_PARAM)
		qla_printk(KERN_ERR, ha, 
		    "%s: Invalid Entry Parameter\n", __func__);
	else if (pkt->entry_status & RF_INV_E_TYPE)
		qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__);
	else if (pkt->entry_status & RF_BUSY)
		qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__);
	else
		qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__);
#endif

	/* Validate handle. */
	if (pkt->handle < MAX_OUTSTANDING_COMMANDS)
		sp = ha->outstanding_cmds[pkt->handle];
	else
		sp = NULL;

	if (sp) {
		/* Free outstanding command slot. */
		ha->outstanding_cmds[pkt->handle] = 0;
		if (ha->actthreads)
			ha->actthreads--;
		sp->lun_queue->out_cnt--;

		/* Bad payload or header */
		if (pkt->entry_status &
		    (RF_INV_E_ORDER | RF_INV_E_COUNT |
		     RF_INV_E_PARAM | RF_INV_E_TYPE)) {
			sp->cmd->result = DID_ERROR << 16;
		} else if (pkt->entry_status & RF_BUSY) {
			sp->cmd->result = DID_BUS_BUSY << 16;
		} else {
			sp->cmd->result = DID_ERROR << 16;
		}
		/* Place command on done queue. */
		add_to_done_queue(ha, sp);

	} else if (pkt->entry_type == COMMAND_A64_TYPE ||
	    pkt->entry_type == COMMAND_TYPE) {
		DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n",
		    ha->host_no));
		qla_printk(KERN_WARNING, ha,
		    "Error entry - invalid handle\n");

		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
		if (ha->dpc_wait && !ha->dpc_active) 
			up(ha->dpc_wait);
	}
}
Пример #4
0
/**
 * qla2x00_process_completed_request() - Process a Fast Post response.
 * @ha: SCSI driver HA context
 * @index: SRB index
 */
static void
qla2x00_process_completed_request(struct scsi_qla_host *ha, uint32_t index)
{
	srb_t *sp;

	/* Validate handle. */
	if (index >= MAX_OUTSTANDING_COMMANDS) {
		DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n",
		    ha->host_no, index));
		qla_printk(KERN_WARNING, ha,
		    "Invalid SCSI completion handle %d.\n", index);

		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
		return;
	}

	sp = ha->outstanding_cmds[index];
	if (sp) {
		/* Free outstanding command slot. */
		ha->outstanding_cmds[index] = 0;

		if (ha->actthreads)
			ha->actthreads--;
		sp->lun_queue->out_cnt--;
		CMD_COMPL_STATUS(sp->cmd) = 0L;
		CMD_SCSI_STATUS(sp->cmd) = 0L;

		/* Save ISP completion status */
		sp->cmd->result = DID_OK << 16;
		sp->fo_retry_cnt = 0;
		add_to_done_queue(ha, sp);
	} else {
		DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n",
		    ha->host_no));
		qla_printk(KERN_WARNING, ha,
		    "Invalid ISP SCSI completion handle\n");

		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
	}
}
Пример #5
0
static void
qla2x00_adjust_sdev_qdepth_down(struct scsi_device *sdev, void *data)
{
	fc_port_t *fcport = data;

	if (!scsi_track_queue_full(sdev, sdev->queue_depth - 1))
		return;

	DEBUG2(qla_printk(KERN_INFO, fcport->ha,
	    "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
	    fcport->ha->host_no, sdev->channel, sdev->id, sdev->lun,
	    sdev->queue_depth));
}
Пример #6
0
static int
qla24xx_enable_msix(scsi_qla_host_t *ha)
{
	int i, ret;
	struct msix_entry entries[QLA_MSIX_ENTRIES];
	struct qla_msix_entry *qentry;

	for (i = 0; i < QLA_MSIX_ENTRIES; i++)
		entries[i].entry = imsix_entries[i].entry;

	ret = pci_enable_msix(ha->pdev, entries, ARRAY_SIZE(entries));
	if (ret) {
		qla_printk(KERN_WARNING, ha,
		    "MSI-X: Failed to enable support -- %d/%d\n",
		    QLA_MSIX_ENTRIES, ret);
		goto msix_out;
	}
	ha->flags.msix_enabled = 1;

	for (i = 0; i < QLA_MSIX_ENTRIES; i++) {
		qentry = &ha->msix_entries[imsix_entries[i].index];
		qentry->msix_vector = entries[i].vector;
		qentry->msix_entry = entries[i].entry;
		qentry->have_irq = 0;
		ret = request_irq(qentry->msix_vector,
		    imsix_entries[i].handler, 0, imsix_entries[i].name, ha);
		if (ret) {
			qla_printk(KERN_WARNING, ha,
			    "MSI-X: Unable to register handler -- %x/%d.\n",
			    imsix_entries[i].index, ret);
			qla24xx_disable_msix(ha);
			goto msix_out;
		}
		qentry->have_irq = 1;
	}

msix_out:
	return ret;
}
Пример #7
0
/**
 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
 * @ha: SCSI driver HA context
 * @pkt: Entry pointer
 *
 * Extended sense data.
 */
static void
qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt)
{
	uint8_t		sense_sz = 0;
	srb_t		*sp = ha->status_srb;
	struct scsi_cmnd *cp;

	if (sp != NULL && sp->request_sense_length != 0) {
		cp = sp->cmd;
		if (cp == NULL) {
			DEBUG2(printk("%s(): Cmd already returned back to OS "
			    "sp=%p.\n", __func__, sp));
			qla_printk(KERN_INFO, ha,
			    "cmd is NULL: already returned to OS (sp=%p)\n",
			    sp);

			ha->status_srb = NULL;
			return;
		}

		if (sp->request_sense_length > sizeof(pkt->data)) {
			sense_sz = sizeof(pkt->data);
		} else {
			sense_sz = sp->request_sense_length;
		}

		/* Move sense data. */
		if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
			host_to_fcp_swap(pkt->data, sizeof(pkt->data));
		memcpy(sp->request_sense_ptr, pkt->data, sense_sz);
		DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz));

		sp->request_sense_ptr += sense_sz;
		sp->request_sense_length -= sense_sz;

		/* Place command on done queue. */
		if (sp->request_sense_length == 0) {
			ha->status_srb = NULL;
			qla2x00_sp_compl(ha, sp);
		}
	}
}
Пример #8
0
static void
qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, void *data)
{
	fc_port_t *fcport = data;

	if (fcport->ha->max_q_depth <= sdev->queue_depth)
		return;

	if (sdev->ordered_tags)
		scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG,
		    sdev->queue_depth + 1);
	else
		scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG,
		    sdev->queue_depth + 1);

	fcport->last_ramp_up = jiffies;

	DEBUG2(qla_printk(KERN_INFO, fcport->ha,
	    "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
	    fcport->ha->host_no, sdev->channel, sdev->id, sdev->lun,
	    sdev->queue_depth));
}
Пример #9
0
/**
 * qla24xx_ms_entry() - Process a Management Server entry.
 * @ha: SCSI driver HA context
 * @index: Response queue out pointer
 */
static void
qla24xx_ms_entry(scsi_qla_host_t *ha, struct ct_entry_24xx *pkt)
{
	srb_t          *sp;

	DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n",
	    __func__, ha->host_no, pkt, pkt->handle));

	DEBUG9(printk("%s: ct pkt dump:\n", __func__));
	DEBUG9(qla2x00_dump_buffer((void *)pkt, sizeof(struct ct_entry_24xx)));

	/* Validate handle. */
 	if (pkt->handle < MAX_OUTSTANDING_COMMANDS)
 		sp = ha->outstanding_cmds[pkt->handle];
	else
		sp = NULL;

	if (sp == NULL) {
		DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n",
		    ha->host_no));
		DEBUG10(printk("scsi(%ld): MS entry - invalid handle\n",
		    ha->host_no));
		qla_printk(KERN_WARNING, ha, "MS entry - invalid handle %d\n",
		    pkt->handle);

		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
		return;
	}

	CMD_COMPL_STATUS(sp->cmd) = le16_to_cpu(pkt->comp_status);
	CMD_ENTRY_STATUS(sp->cmd) = pkt->entry_status;

	/* Free outstanding command slot. */
	ha->outstanding_cmds[pkt->handle] = NULL;

	qla2x00_sp_compl(ha, sp);
}
Пример #10
0
static int
qla24xx_proc_fcp_prio_cfg_cmd(struct fc_bsg_job *bsg_job)
{
	struct Scsi_Host *host = bsg_job->shost;
	scsi_qla_host_t *vha = shost_priv(host);
	struct qla_hw_data *ha = vha->hw;
	int ret = 0;
	uint32_t len;
	uint32_t oper;

	bsg_job->reply->reply_payload_rcv_len = 0;

	if (!IS_QLA24XX_TYPE(ha) || !IS_QLA25XX(ha)) {
		ret = -EINVAL;
		goto exit_fcp_prio_cfg;
	}

	if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
		test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
		test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
		ret = -EBUSY;
		goto exit_fcp_prio_cfg;
	}

	/* Get the sub command */
	oper = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];

	/* Only set config is allowed if config memory is not allocated */
	if (!ha->fcp_prio_cfg && (oper != QLFC_FCP_PRIO_SET_CONFIG)) {
		ret = -EINVAL;
		goto exit_fcp_prio_cfg;
	}
	switch (oper) {
	case QLFC_FCP_PRIO_DISABLE:
		if (ha->flags.fcp_prio_enabled) {
			ha->flags.fcp_prio_enabled = 0;
			ha->fcp_prio_cfg->attributes &=
				~FCP_PRIO_ATTR_ENABLE;
			qla24xx_update_all_fcp_prio(vha);
			bsg_job->reply->result = DID_OK;
		} else {
			ret = -EINVAL;
			bsg_job->reply->result = (DID_ERROR << 16);
			goto exit_fcp_prio_cfg;
		}
		break;

	case QLFC_FCP_PRIO_ENABLE:
		if (!ha->flags.fcp_prio_enabled) {
			if (ha->fcp_prio_cfg) {
				ha->flags.fcp_prio_enabled = 1;
				ha->fcp_prio_cfg->attributes |=
				    FCP_PRIO_ATTR_ENABLE;
				qla24xx_update_all_fcp_prio(vha);
				bsg_job->reply->result = DID_OK;
			} else {
				ret = -EINVAL;
				bsg_job->reply->result = (DID_ERROR << 16);
				goto exit_fcp_prio_cfg;
			}
		}
		break;

	case QLFC_FCP_PRIO_GET_CONFIG:
		len = bsg_job->reply_payload.payload_len;
		if (!len || len > FCP_PRIO_CFG_SIZE) {
			ret = -EINVAL;
			bsg_job->reply->result = (DID_ERROR << 16);
			goto exit_fcp_prio_cfg;
		}

		bsg_job->reply->result = DID_OK;
		bsg_job->reply->reply_payload_rcv_len =
			sg_copy_from_buffer(
			bsg_job->reply_payload.sg_list,
			bsg_job->reply_payload.sg_cnt, ha->fcp_prio_cfg,
			len);

		break;

	case QLFC_FCP_PRIO_SET_CONFIG:
		len = bsg_job->request_payload.payload_len;
		if (!len || len > FCP_PRIO_CFG_SIZE) {
			bsg_job->reply->result = (DID_ERROR << 16);
			ret = -EINVAL;
			goto exit_fcp_prio_cfg;
		}

		if (!ha->fcp_prio_cfg) {
			ha->fcp_prio_cfg = vmalloc(FCP_PRIO_CFG_SIZE);
			if (!ha->fcp_prio_cfg) {
				qla_printk(KERN_WARNING, ha,
					"Unable to allocate memory "
					"for fcp prio config data (%x).\n",
					FCP_PRIO_CFG_SIZE);
				bsg_job->reply->result = (DID_ERROR << 16);
				ret = -ENOMEM;
				goto exit_fcp_prio_cfg;
			}
		}

		memset(ha->fcp_prio_cfg, 0, FCP_PRIO_CFG_SIZE);
		sg_copy_to_buffer(bsg_job->request_payload.sg_list,
		bsg_job->request_payload.sg_cnt, ha->fcp_prio_cfg,
			FCP_PRIO_CFG_SIZE);

		/* validate fcp priority data */
		if (!qla24xx_fcp_prio_cfg_valid(
			(struct qla_fcp_prio_cfg *)
			ha->fcp_prio_cfg, 1)) {
			bsg_job->reply->result = (DID_ERROR << 16);
			ret = -EINVAL;
			/* If buffer was invalidatic int
			 * fcp_prio_cfg is of no use
			 */
			vfree(ha->fcp_prio_cfg);
			ha->fcp_prio_cfg = NULL;
			goto exit_fcp_prio_cfg;
		}

		ha->flags.fcp_prio_enabled = 0;
		if (ha->fcp_prio_cfg->attributes & FCP_PRIO_ATTR_ENABLE)
			ha->flags.fcp_prio_enabled = 1;
		qla24xx_update_all_fcp_prio(vha);
		bsg_job->reply->result = DID_OK;
		break;
	default:
		ret = -EINVAL;
		break;
	}
exit_fcp_prio_cfg:
	bsg_job->job_done(bsg_job);
	return ret;
}
Пример #11
0
static int
qla2x00_process_els(struct fc_bsg_job *bsg_job)
{
	struct fc_rport *rport;
	fc_port_t *fcport = NULL;
	struct Scsi_Host *host;
	scsi_qla_host_t *vha;
	struct qla_hw_data *ha;
	srb_t *sp;
	const char *type;
	int req_sg_cnt, rsp_sg_cnt;
	int rval =  (DRIVER_ERROR << 16);
	uint16_t nextlid = 0;
	struct srb_ctx *els;

	if (bsg_job->request->msgcode == FC_BSG_RPT_ELS) {
		rport = bsg_job->rport;
		fcport = *(fc_port_t **) rport->dd_data;
		host = rport_to_shost(rport);
		vha = shost_priv(host);
		ha = vha->hw;
		type = "FC_BSG_RPT_ELS";
	} else {
		host = bsg_job->shost;
		vha = shost_priv(host);
		ha = vha->hw;
		type = "FC_BSG_HST_ELS_NOLOGIN";
	}

	/* pass through is supported only for ISP 4Gb or higher */
	if (!IS_FWI2_CAPABLE(ha)) {
		DEBUG2(qla_printk(KERN_INFO, ha,
		    "scsi(%ld):ELS passthru not supported for ISP23xx based "
		    "adapters\n", vha->host_no));
		rval = -EPERM;
		goto done;
	}

	/*  Multiple SG's are not supported for ELS requests */
	if (bsg_job->request_payload.sg_cnt > 1 ||
		bsg_job->reply_payload.sg_cnt > 1) {
		DEBUG2(printk(KERN_INFO
			"multiple SG's are not supported for ELS requests"
			" [request_sg_cnt: %x reply_sg_cnt: %x]\n",
			bsg_job->request_payload.sg_cnt,
			bsg_job->reply_payload.sg_cnt));
		rval = -EPERM;
		goto done;
	}

	/* ELS request for rport */
	if (bsg_job->request->msgcode == FC_BSG_RPT_ELS) {
		/* make sure the rport is logged in,
		 * if not perform fabric login
		 */
		if (qla2x00_fabric_login(vha, fcport, &nextlid)) {
			DEBUG2(qla_printk(KERN_WARNING, ha,
			"failed to login port %06X for ELS passthru\n",
			fcport->d_id.b24));
			rval = -EIO;
			goto done;
		}
	} else {
		/* Allocate a dummy fcport structure, since functions
		 * preparing the IOCB and mailbox command retrieves port
		 * specific information from fcport structure. For Host based
		 * ELS commands there will be no fcport structure allocated
		 */
		fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
		if (!fcport) {
			rval = -ENOMEM;
			goto done;
		}

		/* Initialize all required  fields of fcport */
		fcport->vha = vha;
		fcport->vp_idx = vha->vp_idx;
		fcport->d_id.b.al_pa =
			bsg_job->request->rqst_data.h_els.port_id[0];
		fcport->d_id.b.area =
			bsg_job->request->rqst_data.h_els.port_id[1];
		fcport->d_id.b.domain =
			bsg_job->request->rqst_data.h_els.port_id[2];
		fcport->loop_id =
			(fcport->d_id.b.al_pa == 0xFD) ?
			NPH_FABRIC_CONTROLLER : NPH_F_PORT;
	}

	if (!vha->flags.online) {
		DEBUG2(qla_printk(KERN_WARNING, ha,
		"host not online\n"));
		rval = -EIO;
		goto done;
	}

	req_sg_cnt =
		dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
		bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
	if (!req_sg_cnt) {
		rval = -ENOMEM;
		goto done_free_fcport;
	}

	rsp_sg_cnt = dma_map_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
		bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
        if (!rsp_sg_cnt) {
		rval = -ENOMEM;
		goto done_free_fcport;
	}

	if ((req_sg_cnt !=  bsg_job->request_payload.sg_cnt) ||
		(rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
		DEBUG2(printk(KERN_INFO
			"dma mapping resulted in different sg counts \
			[request_sg_cnt: %x dma_request_sg_cnt: %x\
			reply_sg_cnt: %x dma_reply_sg_cnt: %x]\n",
			bsg_job->request_payload.sg_cnt, req_sg_cnt,
			bsg_job->reply_payload.sg_cnt, rsp_sg_cnt));
		rval = -EAGAIN;
		goto done_unmap_sg;
	}
Пример #12
0
void
qla24xx_fw_dump(scsi_qla_host_t *ha, int hardware_locked)
{
	int		rval;
	uint32_t	cnt;
	uint32_t	risc_address;

	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
	uint32_t __iomem *dmp_reg;
	uint32_t	*iter_reg;
	uint16_t __iomem *mbx_reg;
	unsigned long	flags;
	struct qla24xx_fw_dump *fw;
	uint32_t	ext_mem_cnt;
	void		*nxt;

	risc_address = ext_mem_cnt = 0;
	flags = 0;

	if (!hardware_locked)
		spin_lock_irqsave(&ha->hardware_lock, flags);

	if (!ha->fw_dump) {
		qla_printk(KERN_WARNING, ha,
		    "No buffer available for dump!!!\n");
		goto qla24xx_fw_dump_failed;
	}

	if (ha->fw_dumped) {
		qla_printk(KERN_WARNING, ha,
		    "Firmware has been previously dumped (%p) -- ignoring "
		    "request...\n", ha->fw_dump);
		goto qla24xx_fw_dump_failed;
	}
	fw = &ha->fw_dump->isp.isp24;
	qla2xxx_prep_dump(ha, ha->fw_dump);

	fw->host_status = htonl(RD_REG_DWORD(&reg->host_status));

	/* Pause RISC. */
	rval = qla24xx_pause_risc(reg);
	if (rval != QLA_SUCCESS)
		goto qla24xx_fw_dump_failed_0;

	/* Host interface registers. */
	dmp_reg = &reg->flash_addr;
	for (cnt = 0; cnt < sizeof(fw->host_reg) / 4; cnt++)
		fw->host_reg[cnt] = htonl(RD_REG_DWORD(dmp_reg++));

	/* Disable interrupts. */
	WRT_REG_DWORD(&reg->ictrl, 0);
	RD_REG_DWORD(&reg->ictrl);

	/* Shadow registers. */
	WRT_REG_DWORD(&reg->iobase_addr, 0x0F70);
	RD_REG_DWORD(&reg->iobase_addr);
	WRT_REG_DWORD(&reg->iobase_select, 0xB0000000);
	fw->shadow_reg[0] = htonl(RD_REG_DWORD(&reg->iobase_sdata));

	WRT_REG_DWORD(&reg->iobase_select, 0xB0100000);
	fw->shadow_reg[1] = htonl(RD_REG_DWORD(&reg->iobase_sdata));

	WRT_REG_DWORD(&reg->iobase_select, 0xB0200000);
	fw->shadow_reg[2] = htonl(RD_REG_DWORD(&reg->iobase_sdata));

	WRT_REG_DWORD(&reg->iobase_select, 0xB0300000);
	fw->shadow_reg[3] = htonl(RD_REG_DWORD(&reg->iobase_sdata));

	WRT_REG_DWORD(&reg->iobase_select, 0xB0400000);
	fw->shadow_reg[4] = htonl(RD_REG_DWORD(&reg->iobase_sdata));

	WRT_REG_DWORD(&reg->iobase_select, 0xB0500000);
	fw->shadow_reg[5] = htonl(RD_REG_DWORD(&reg->iobase_sdata));

	WRT_REG_DWORD(&reg->iobase_select, 0xB0600000);
	fw->shadow_reg[6] = htonl(RD_REG_DWORD(&reg->iobase_sdata));

	/* Mailbox registers. */
	mbx_reg = &reg->mailbox0;
	for (cnt = 0; cnt < sizeof(fw->mailbox_reg) / 2; cnt++)
		fw->mailbox_reg[cnt] = htons(RD_REG_WORD(mbx_reg++));

	/* Transfer sequence registers. */
	iter_reg = fw->xseq_gp_reg;
	iter_reg = qla24xx_read_window(reg, 0xBF00, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0xBF10, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0xBF20, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0xBF30, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0xBF40, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0xBF50, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0xBF60, 16, iter_reg);
	qla24xx_read_window(reg, 0xBF70, 16, iter_reg);

	qla24xx_read_window(reg, 0xBFE0, 16, fw->xseq_0_reg);
	qla24xx_read_window(reg, 0xBFF0, 16, fw->xseq_1_reg);

	/* Receive sequence registers. */
	iter_reg = fw->rseq_gp_reg;
	iter_reg = qla24xx_read_window(reg, 0xFF00, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0xFF10, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0xFF20, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0xFF30, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0xFF40, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0xFF50, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0xFF60, 16, iter_reg);
	qla24xx_read_window(reg, 0xFF70, 16, iter_reg);

	qla24xx_read_window(reg, 0xFFD0, 16, fw->rseq_0_reg);
	qla24xx_read_window(reg, 0xFFE0, 16, fw->rseq_1_reg);
	qla24xx_read_window(reg, 0xFFF0, 16, fw->rseq_2_reg);

	/* Command DMA registers. */
	qla24xx_read_window(reg, 0x7100, 16, fw->cmd_dma_reg);

	/* Queues. */
	iter_reg = fw->req0_dma_reg;
	iter_reg = qla24xx_read_window(reg, 0x7200, 8, iter_reg);
	dmp_reg = &reg->iobase_q;
	for (cnt = 0; cnt < 7; cnt++)
		*iter_reg++ = htonl(RD_REG_DWORD(dmp_reg++));

	iter_reg = fw->resp0_dma_reg;
	iter_reg = qla24xx_read_window(reg, 0x7300, 8, iter_reg);
	dmp_reg = &reg->iobase_q;
	for (cnt = 0; cnt < 7; cnt++)
		*iter_reg++ = htonl(RD_REG_DWORD(dmp_reg++));

	iter_reg = fw->req1_dma_reg;
	iter_reg = qla24xx_read_window(reg, 0x7400, 8, iter_reg);
	dmp_reg = &reg->iobase_q;
	for (cnt = 0; cnt < 7; cnt++)
		*iter_reg++ = htonl(RD_REG_DWORD(dmp_reg++));

	/* Transmit DMA registers. */
	iter_reg = fw->xmt0_dma_reg;
	iter_reg = qla24xx_read_window(reg, 0x7600, 16, iter_reg);
	qla24xx_read_window(reg, 0x7610, 16, iter_reg);

	iter_reg = fw->xmt1_dma_reg;
	iter_reg = qla24xx_read_window(reg, 0x7620, 16, iter_reg);
	qla24xx_read_window(reg, 0x7630, 16, iter_reg);

	iter_reg = fw->xmt2_dma_reg;
	iter_reg = qla24xx_read_window(reg, 0x7640, 16, iter_reg);
	qla24xx_read_window(reg, 0x7650, 16, iter_reg);

	iter_reg = fw->xmt3_dma_reg;
	iter_reg = qla24xx_read_window(reg, 0x7660, 16, iter_reg);
	qla24xx_read_window(reg, 0x7670, 16, iter_reg);

	iter_reg = fw->xmt4_dma_reg;
	iter_reg = qla24xx_read_window(reg, 0x7680, 16, iter_reg);
	qla24xx_read_window(reg, 0x7690, 16, iter_reg);

	qla24xx_read_window(reg, 0x76A0, 16, fw->xmt_data_dma_reg);

	/* Receive DMA registers. */
	iter_reg = fw->rcvt0_data_dma_reg;
	iter_reg = qla24xx_read_window(reg, 0x7700, 16, iter_reg);
	qla24xx_read_window(reg, 0x7710, 16, iter_reg);

	iter_reg = fw->rcvt1_data_dma_reg;
	iter_reg = qla24xx_read_window(reg, 0x7720, 16, iter_reg);
	qla24xx_read_window(reg, 0x7730, 16, iter_reg);

	/* RISC registers. */
	iter_reg = fw->risc_gp_reg;
	iter_reg = qla24xx_read_window(reg, 0x0F00, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x0F10, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x0F20, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x0F30, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x0F40, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x0F50, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x0F60, 16, iter_reg);
	qla24xx_read_window(reg, 0x0F70, 16, iter_reg);

	/* Local memory controller registers. */
	iter_reg = fw->lmc_reg;
	iter_reg = qla24xx_read_window(reg, 0x3000, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x3010, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x3020, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x3030, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x3040, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x3050, 16, iter_reg);
	qla24xx_read_window(reg, 0x3060, 16, iter_reg);

	/* Fibre Protocol Module registers. */
	iter_reg = fw->fpm_hdw_reg;
	iter_reg = qla24xx_read_window(reg, 0x4000, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x4010, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x4020, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x4030, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x4040, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x4050, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x4060, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x4070, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x4080, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x4090, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x40A0, 16, iter_reg);
	qla24xx_read_window(reg, 0x40B0, 16, iter_reg);

	/* Frame Buffer registers. */
	iter_reg = fw->fb_hdw_reg;
	iter_reg = qla24xx_read_window(reg, 0x6000, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x6010, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x6020, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x6030, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x6040, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x6100, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x6130, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x6150, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x6170, 16, iter_reg);
	iter_reg = qla24xx_read_window(reg, 0x6190, 16, iter_reg);
	qla24xx_read_window(reg, 0x61B0, 16, iter_reg);

	rval = qla24xx_soft_reset(ha);
	if (rval != QLA_SUCCESS)
		goto qla24xx_fw_dump_failed_0;

	rval = qla24xx_dump_memory(ha, fw->code_ram, sizeof(fw->code_ram),
	    fw->ext_mem, &nxt);
	if (rval != QLA_SUCCESS)
		goto qla24xx_fw_dump_failed_0;

	nxt = qla2xxx_copy_queues(ha, nxt);
	if (ha->eft)
		memcpy(nxt, ha->eft, ntohl(ha->fw_dump->eft_size));

qla24xx_fw_dump_failed_0:
	if (rval != QLA_SUCCESS) {
		qla_printk(KERN_WARNING, ha,
		    "Failed to dump firmware (%x)!!!\n", rval);
		ha->fw_dumped = 0;

	} else {
		qla_printk(KERN_INFO, ha,
		    "Firmware dump saved to temp buffer (%ld/%p).\n",
		    ha->host_no, ha->fw_dump);
		ha->fw_dumped = 1;
	}

qla24xx_fw_dump_failed:
	if (!hardware_locked)
		spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
Пример #13
0
/**
 * qla2300_fw_dump() - Dumps binary data from the 2300 firmware.
 * @ha: HA context
 * @hardware_locked: Called with the hardware_lock
 */
void
qla2300_fw_dump(scsi_qla_host_t *ha, int hardware_locked)
{
	int		rval;
	uint32_t	cnt, timer;
	uint32_t	risc_address;
	uint16_t	mb0, mb2;

	uint32_t	stat;
	device_reg_t __iomem *reg = ha->iobase;
	uint16_t __iomem *dmp_reg;
	unsigned long	flags;
	struct qla2300_fw_dump	*fw;
	uint32_t	dump_size, data_ram_cnt;

	risc_address = data_ram_cnt = 0;
	mb0 = mb2 = 0;
	flags = 0;

	if (!hardware_locked)
		spin_lock_irqsave(&ha->hardware_lock, flags);

	if (ha->fw_dump != NULL) {
		qla_printk(KERN_WARNING, ha,
		    "Firmware has been previously dumped (%p) -- ignoring "
		    "request...\n", ha->fw_dump);
		goto qla2300_fw_dump_failed;
	}

	/* Allocate (large) dump buffer. */
	dump_size = sizeof(struct qla2300_fw_dump);
	dump_size += (ha->fw_memory_size - 0x11000) * sizeof(uint16_t);
	ha->fw_dump_order = get_order(dump_size);
	ha->fw_dump = (struct qla2300_fw_dump *) __get_free_pages(GFP_ATOMIC,
	    ha->fw_dump_order);
	if (ha->fw_dump == NULL) {
		qla_printk(KERN_WARNING, ha,
		    "Unable to allocated memory for firmware dump (%d/%d).\n",
		    ha->fw_dump_order, dump_size);
		goto qla2300_fw_dump_failed;
	}
	fw = ha->fw_dump;

	rval = QLA_SUCCESS;
	fw->hccr = RD_REG_WORD(&reg->hccr);

	/* Pause RISC. */
	WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC); 
	if (IS_QLA2300(ha)) {
		for (cnt = 30000;
		    (RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0 &&
			rval == QLA_SUCCESS; cnt--) {
			if (cnt)
				udelay(100);
			else
				rval = QLA_FUNCTION_TIMEOUT;
		}
	} else {
		RD_REG_WORD(&reg->hccr);		/* PCI Posting. */
		udelay(10);
	}

	if (rval == QLA_SUCCESS) {
		dmp_reg = (uint16_t __iomem *)(reg + 0);
		for (cnt = 0; cnt < sizeof(fw->pbiu_reg) / 2; cnt++) 
			fw->pbiu_reg[cnt] = RD_REG_WORD(dmp_reg++);

		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x10);
		for (cnt = 0; cnt < sizeof(fw->risc_host_reg) / 2; cnt++) 
			fw->risc_host_reg[cnt] = RD_REG_WORD(dmp_reg++);

		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x40);
		for (cnt = 0; cnt < sizeof(fw->mailbox_reg) / 2; cnt++) 
			fw->mailbox_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->ctrl_status, 0x40);
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->resp_dma_reg) / 2; cnt++) 
			fw->resp_dma_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->ctrl_status, 0x50);
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->dma_reg) / 2; cnt++) 
			fw->dma_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->ctrl_status, 0x00);
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0xA0);
		for (cnt = 0; cnt < sizeof(fw->risc_hdw_reg) / 2; cnt++) 
			fw->risc_hdw_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->pcr, 0x2000); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->risc_gp0_reg) / 2; cnt++) 
			fw->risc_gp0_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->pcr, 0x2200); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->risc_gp1_reg) / 2; cnt++) 
			fw->risc_gp1_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->pcr, 0x2400); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->risc_gp2_reg) / 2; cnt++) 
			fw->risc_gp2_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->pcr, 0x2600); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->risc_gp3_reg) / 2; cnt++) 
			fw->risc_gp3_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->pcr, 0x2800); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->risc_gp4_reg) / 2; cnt++) 
			fw->risc_gp4_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->pcr, 0x2A00); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->risc_gp5_reg) / 2; cnt++) 
			fw->risc_gp5_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->pcr, 0x2C00); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->risc_gp6_reg) / 2; cnt++) 
			fw->risc_gp6_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->pcr, 0x2E00); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->risc_gp7_reg) / 2; cnt++) 
			fw->risc_gp7_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->ctrl_status, 0x10); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->frame_buf_hdw_reg) / 2; cnt++) 
			fw->frame_buf_hdw_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->ctrl_status, 0x20); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->fpm_b0_reg) / 2; cnt++) 
			fw->fpm_b0_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->ctrl_status, 0x30); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->fpm_b1_reg) / 2; cnt++) 
			fw->fpm_b1_reg[cnt] = RD_REG_WORD(dmp_reg++);

		/* Reset RISC. */
		WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
		for (cnt = 0; cnt < 30000; cnt++) {
			if ((RD_REG_WORD(&reg->ctrl_status) &
			    CSR_ISP_SOFT_RESET) == 0)
				break;

			udelay(10);
		}
	}

	if (!IS_QLA2300(ha)) {
		for (cnt = 30000; RD_MAILBOX_REG(ha, reg, 0) != 0 &&
		    rval == QLA_SUCCESS; cnt--) {
			if (cnt)
				udelay(100);
			else
				rval = QLA_FUNCTION_TIMEOUT;
		}
	}

	if (rval == QLA_SUCCESS) {
		/* Get RISC SRAM. */
		risc_address = 0x800;
 		WRT_MAILBOX_REG(ha, reg, 0, MBC_READ_RAM_WORD);
		clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
	}
	for (cnt = 0; cnt < sizeof(fw->risc_ram) / 2 && rval == QLA_SUCCESS;
	    cnt++, risc_address++) {
 		WRT_MAILBOX_REG(ha, reg, 1, (uint16_t)risc_address);
		WRT_REG_WORD(&reg->hccr, HCCR_SET_HOST_INT);

		for (timer = 6000000; timer; timer--) {
			/* Check for pending interrupts. */
 			stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
			if (stat & HSR_RISC_INT) {
				stat &= 0xff;

				if (stat == 0x1 || stat == 0x2) {
					set_bit(MBX_INTERRUPT,
					    &ha->mbx_cmd_flags);

					mb0 = RD_MAILBOX_REG(ha, reg, 0);
					mb2 = RD_MAILBOX_REG(ha, reg, 2);

					/* Release mailbox registers. */
					WRT_REG_WORD(&reg->semaphore, 0);
					WRT_REG_WORD(&reg->hccr,
					    HCCR_CLR_RISC_INT);
					RD_REG_WORD(&reg->hccr);
					break;
				} else if (stat == 0x10 || stat == 0x11) {
					set_bit(MBX_INTERRUPT,
					    &ha->mbx_cmd_flags);

					mb0 = RD_MAILBOX_REG(ha, reg, 0);
					mb2 = RD_MAILBOX_REG(ha, reg, 2);

					WRT_REG_WORD(&reg->hccr,
					    HCCR_CLR_RISC_INT);
					RD_REG_WORD(&reg->hccr);
					break;
				}

				/* clear this intr; it wasn't a mailbox intr */
				WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
				RD_REG_WORD(&reg->hccr);
			}
			udelay(5);
		}

		if (test_and_clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags)) {
			rval = mb0 & MBS_MASK;
			fw->risc_ram[cnt] = mb2;
		} else {
			rval = QLA_FUNCTION_FAILED;
		}
	}

	if (rval == QLA_SUCCESS) {
		/* Get stack SRAM. */
		risc_address = 0x10000;
 		WRT_MAILBOX_REG(ha, reg, 0, MBC_READ_RAM_EXTENDED);
		clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
	}
	for (cnt = 0; cnt < sizeof(fw->stack_ram) / 2 && rval == QLA_SUCCESS;
	    cnt++, risc_address++) {
 		WRT_MAILBOX_REG(ha, reg, 1, LSW(risc_address));
 		WRT_MAILBOX_REG(ha, reg, 8, MSW(risc_address));
		WRT_REG_WORD(&reg->hccr, HCCR_SET_HOST_INT);

		for (timer = 6000000; timer; timer--) {
			/* Check for pending interrupts. */
 			stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
			if (stat & HSR_RISC_INT) {
				stat &= 0xff;

				if (stat == 0x1 || stat == 0x2) {
					set_bit(MBX_INTERRUPT,
					    &ha->mbx_cmd_flags);

					mb0 = RD_MAILBOX_REG(ha, reg, 0);
					mb2 = RD_MAILBOX_REG(ha, reg, 2);

					/* Release mailbox registers. */
					WRT_REG_WORD(&reg->semaphore, 0);
					WRT_REG_WORD(&reg->hccr,
					    HCCR_CLR_RISC_INT);
					RD_REG_WORD(&reg->hccr);
					break;
				} else if (stat == 0x10 || stat == 0x11) {
					set_bit(MBX_INTERRUPT,
					    &ha->mbx_cmd_flags);

					mb0 = RD_MAILBOX_REG(ha, reg, 0);
					mb2 = RD_MAILBOX_REG(ha, reg, 2);

					WRT_REG_WORD(&reg->hccr,
					    HCCR_CLR_RISC_INT);
					RD_REG_WORD(&reg->hccr);
					break;
				}

				/* clear this intr; it wasn't a mailbox intr */
				WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
				RD_REG_WORD(&reg->hccr);
			}
			udelay(5);
		}

		if (test_and_clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags)) {
			rval = mb0 & MBS_MASK;
			fw->stack_ram[cnt] = mb2;
		} else {
			rval = QLA_FUNCTION_FAILED;
		}
	}

	if (rval == QLA_SUCCESS) {
		/* Get data SRAM. */
		risc_address = 0x11000;
		data_ram_cnt = ha->fw_memory_size - risc_address + 1;
 		WRT_MAILBOX_REG(ha, reg, 0, MBC_READ_RAM_EXTENDED);
		clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
	}
	for (cnt = 0; cnt < data_ram_cnt && rval == QLA_SUCCESS;
	    cnt++, risc_address++) {
 		WRT_MAILBOX_REG(ha, reg, 1, LSW(risc_address));
 		WRT_MAILBOX_REG(ha, reg, 8, MSW(risc_address));
		WRT_REG_WORD(&reg->hccr, HCCR_SET_HOST_INT);

		for (timer = 6000000; timer; timer--) {
			/* Check for pending interrupts. */
 			stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
			if (stat & HSR_RISC_INT) {
				stat &= 0xff;

				if (stat == 0x1 || stat == 0x2) {
					set_bit(MBX_INTERRUPT,
					    &ha->mbx_cmd_flags);

					mb0 = RD_MAILBOX_REG(ha, reg, 0);
					mb2 = RD_MAILBOX_REG(ha, reg, 2);

					/* Release mailbox registers. */
					WRT_REG_WORD(&reg->semaphore, 0);
					WRT_REG_WORD(&reg->hccr,
					    HCCR_CLR_RISC_INT);
					RD_REG_WORD(&reg->hccr);
					break;
				} else if (stat == 0x10 || stat == 0x11) {
					set_bit(MBX_INTERRUPT,
					    &ha->mbx_cmd_flags);

					mb0 = RD_MAILBOX_REG(ha, reg, 0);
					mb2 = RD_MAILBOX_REG(ha, reg, 2);

					WRT_REG_WORD(&reg->hccr,
					    HCCR_CLR_RISC_INT);
					RD_REG_WORD(&reg->hccr);
					break;
				}

				/* clear this intr; it wasn't a mailbox intr */
				WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
				RD_REG_WORD(&reg->hccr);
			}
			udelay(5);
		}

		if (test_and_clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags)) {
			rval = mb0 & MBS_MASK;
			fw->data_ram[cnt] = mb2;
		} else {
			rval = QLA_FUNCTION_FAILED;
		}
	}


	if (rval != QLA_SUCCESS) {
		qla_printk(KERN_WARNING, ha,
		    "Failed to dump firmware (%x)!!!\n", rval);

		free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order);
		ha->fw_dump = NULL;
	} else {
		qla_printk(KERN_INFO, ha,
		    "Firmware dump saved to temp buffer (%ld/%p).\n",
		    ha->host_no, ha->fw_dump);
	}

qla2300_fw_dump_failed:
	if (!hardware_locked)
		spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
Пример #14
0
/**
 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
 * @irq:
 * @dev_id: SCSI driver HA context
 * @regs:
 *
 * Called by system whenever the host adapter generates an interrupt.
 *
 * Returns handled flag.
 */
irqreturn_t
qla24xx_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
{
	scsi_qla_host_t	*ha;
	struct device_reg_24xx __iomem *reg;
	int		status;
	unsigned long	flags;
	unsigned long	iter;
	uint32_t	stat;
	uint32_t	hccr;
	uint16_t	mb[4];

	ha = (scsi_qla_host_t *) dev_id;
	if (!ha) {
		printk(KERN_INFO
		    "%s(): NULL host pointer\n", __func__);
		return IRQ_NONE;
	}

	reg = &ha->iobase->isp24;
	status = 0;

	spin_lock_irqsave(&ha->hardware_lock, flags);
	for (iter = 50; iter--; ) {
		stat = RD_REG_DWORD(&reg->host_status);
		if (stat & HSRX_RISC_PAUSED) {
			hccr = RD_REG_DWORD(&reg->hccr);

			qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
			    "Dumping firmware!\n", hccr);
			qla24xx_fw_dump(ha, 1);

			set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
			break;
		} else if ((stat & HSRX_RISC_INT) == 0)
			break;

		switch (stat & 0xff) {
		case 0x1:
		case 0x2:
		case 0x10:
		case 0x11:
			qla24xx_mbx_completion(ha, MSW(stat));
			status |= MBX_INTERRUPT;

			break;
		case 0x12:
			mb[0] = MSW(stat);
			mb[1] = RD_REG_WORD(&reg->mailbox1);
			mb[2] = RD_REG_WORD(&reg->mailbox2);
			mb[3] = RD_REG_WORD(&reg->mailbox3);
			qla2x00_async_event(ha, mb);
			break;
		case 0x13:
			qla24xx_process_response_queue(ha);
			break;
		default:
			DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
			    "(%d).\n",
			    ha->host_no, stat & 0xff));
			break;
		}
		WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
		RD_REG_DWORD_RELAXED(&reg->hccr);
	}
	spin_unlock_irqrestore(&ha->hardware_lock, flags);

	if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
	    (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
		spin_lock_irqsave(&ha->mbx_reg_lock, flags);

		set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
		up(&ha->mbx_intr_sem);

		spin_unlock_irqrestore(&ha->mbx_reg_lock, flags);
	}

	return IRQ_HANDLED;
}
Пример #15
0
/**
 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
 * @irq:
 * @dev_id: SCSI driver HA context
 * @regs:
 *
 * Called by system whenever the host adapter generates an interrupt.
 *
 * Returns handled flag.
 */
irqreturn_t
qla2300_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
{
	scsi_qla_host_t	*ha;
	struct device_reg_2xxx __iomem *reg;
	int		status;
	unsigned long	flags;
	unsigned long	iter;
	uint32_t	stat;
	uint16_t	hccr;
	uint16_t	mb[4];

	ha = (scsi_qla_host_t *) dev_id;
	if (!ha) {
		printk(KERN_INFO
		    "%s(): NULL host pointer\n", __func__);
		return (IRQ_NONE);
	}

	reg = &ha->iobase->isp;
	status = 0;

	spin_lock_irqsave(&ha->hardware_lock, flags);
	for (iter = 50; iter--; ) {
		stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
		if (stat & HSR_RISC_PAUSED) {
			hccr = RD_REG_WORD(&reg->hccr);
			if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
				qla_printk(KERN_INFO, ha,
				    "Parity error -- HCCR=%x.\n", hccr);
			else
				qla_printk(KERN_INFO, ha,
				    "RISC paused -- HCCR=%x.\n", hccr);

			/*
			 * Issue a "HARD" reset in order for the RISC
			 * interrupt bit to be cleared.  Schedule a big
			 * hammmer to get out of the RISC PAUSED state.
			 */
			WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
			RD_REG_WORD(&reg->hccr);
			set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
			break;
		} else if ((stat & HSR_RISC_INT) == 0)
			break;

		switch (stat & 0xff) {
		case 0x1:
		case 0x2:
		case 0x10:
		case 0x11:
			qla2x00_mbx_completion(ha, MSW(stat));
			status |= MBX_INTERRUPT;

			/* Release mailbox registers. */
			WRT_REG_WORD(&reg->semaphore, 0);
			break;
		case 0x12:
			mb[0] = MSW(stat);
			mb[1] = RD_MAILBOX_REG(ha, reg, 1);
			mb[2] = RD_MAILBOX_REG(ha, reg, 2);
			mb[3] = RD_MAILBOX_REG(ha, reg, 3);
			qla2x00_async_event(ha, mb);
			break;
		case 0x13:
			qla2x00_process_response_queue(ha);
			break;
		case 0x15:
			mb[0] = MBA_CMPLT_1_16BIT;
			mb[1] = MSW(stat);
			qla2x00_async_event(ha, mb);
			break;
		case 0x16:
			mb[0] = MBA_SCSI_COMPLETION;
			mb[1] = MSW(stat);
			mb[2] = RD_MAILBOX_REG(ha, reg, 2);
			qla2x00_async_event(ha, mb);
			break;
		default:
			DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
			    "(%d).\n",
			    ha->host_no, stat & 0xff));
			break;
		}
		WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
		RD_REG_WORD_RELAXED(&reg->hccr);
	}
	spin_unlock_irqrestore(&ha->hardware_lock, flags);

	if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
	    (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
		spin_lock_irqsave(&ha->mbx_reg_lock, flags);

		set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
		up(&ha->mbx_intr_sem);

		spin_unlock_irqrestore(&ha->mbx_reg_lock, flags);
	}

	return (IRQ_HANDLED);
}
Пример #16
0
/**
 * qla2x00_async_event() - Process aynchronous events.
 * @ha: SCSI driver HA context
 * @mb0: Mailbox0 register
 */
static void
qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx)
{
	static char	*link_speeds[5] = { "1", "2", "4", "?", "10" };
	char		*link_speed;
	uint16_t	mb[4];
	uint16_t	handle_cnt;
	uint16_t	cnt;
	uint32_t	handles[5];
	device_reg_t	*reg = ha->iobase;
	uint32_t	rscn_entry, host_pid;
	uint8_t		rscn_queue_index;

	/* Setup to process RIO completion. */
	handle_cnt = 0;
	mb[0] = LSW(mbx);
	switch (mb[0]) {
	case MBA_SCSI_COMPLETION:
		if (IS_QLA2100(ha) || IS_QLA2200(ha))
			handles[0] = le32_to_cpu(
			    ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) |
			    RD_MAILBOX_REG(ha, reg, 1));
		else
			handles[0] = le32_to_cpu(
			    ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) |
			    MSW(mbx));
		handle_cnt = 1;
		break;
	case MBA_CMPLT_1_16BIT:
		if (IS_QLA2100(ha) || IS_QLA2200(ha))
			handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
		else
			handles[0] = MSW(mbx);
		handle_cnt = 1;
		mb[0] = MBA_SCSI_COMPLETION;
		break;
	case MBA_CMPLT_2_16BIT:
		handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
		handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
		handle_cnt = 2;
		mb[0] = MBA_SCSI_COMPLETION;
		break;
	case MBA_CMPLT_3_16BIT:
		handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
		handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
		handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3);
		handle_cnt = 3;
		mb[0] = MBA_SCSI_COMPLETION;
		break;
	case MBA_CMPLT_4_16BIT:
		handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
		handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
		handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3);
		handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
		handle_cnt = 4;
		mb[0] = MBA_SCSI_COMPLETION;
		break;
	case MBA_CMPLT_5_16BIT:
		handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
		handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
		handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3);
		handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
		handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
		handle_cnt = 5;
		mb[0] = MBA_SCSI_COMPLETION;
		break;
	case MBA_CMPLT_2_32BIT:
		handles[0] = le32_to_cpu(
		    ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) |
		    RD_MAILBOX_REG(ha, reg, 1));
		handles[1] = le32_to_cpu(
		    ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
		    RD_MAILBOX_REG(ha, reg, 6));
		handle_cnt = 2;
		mb[0] = MBA_SCSI_COMPLETION;
		break;
	default:
		break;
	}

	mb[0] = LSW(mbx);
	switch (mb[0]) {
	case MBA_SCSI_COMPLETION:	/* Fast Post */
		if (!ha->flags.online)
			break;

		for (cnt = 0; cnt < handle_cnt; cnt++)
			qla2x00_process_completed_request(ha, handles[cnt]);
		break;

	case MBA_RESET:			/* Reset */
		DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha->host_no));

		set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
		break;

	case MBA_SYSTEM_ERR:		/* System Error */
		mb[1] = RD_MAILBOX_REG(ha, reg, 1);
		mb[2] = RD_MAILBOX_REG(ha, reg, 2);
		mb[3] = RD_MAILBOX_REG(ha, reg, 3);

		qla_printk(KERN_INFO, ha,
		    "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n",
		    mb[1], mb[2], mb[3]);

		if (IS_QLA2100(ha) || IS_QLA2200(ha))
			qla2100_fw_dump(ha, 1);
		else
	    		qla2300_fw_dump(ha, 1);
		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
		break;

	case MBA_REQ_TRANSFER_ERR:	/* Request Transfer Error */
		DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n",
		    ha->host_no));
		qla_printk(KERN_WARNING, ha, "ISP Request Transfer Error.\n");

		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
		break;

	case MBA_RSP_TRANSFER_ERR:	/* Response Transfer Error */
		DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
		    ha->host_no));
		qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n");

		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
		break;

	case MBA_WAKEUP_THRES:		/* Request Queue Wake-up */
		DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
		    ha->host_no));
		break;

	case MBA_LIP_OCCURRED:		/* Loop Initialization Procedure */
		mb[1] = RD_MAILBOX_REG(ha, reg, 1);

		DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha->host_no,
		    mb[1]));
		qla_printk(KERN_INFO, ha, "LIP occured (%x).\n", mb[1]);

		if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
			atomic_set(&ha->loop_state, LOOP_DOWN);
			atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
			qla2x00_mark_all_devices_lost(ha);
		}

		set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);

		ha->flags.management_server_logged_in = 0;

		/* Update AEN queue. */
		qla2x00_enqueue_aen(ha, MBA_LIP_OCCURRED, NULL);

		ha->total_lip_cnt++;
		break;

	case MBA_LOOP_UP:		/* Loop Up Event */
		mb[1] = RD_MAILBOX_REG(ha, reg, 1);

		ha->link_data_rate = 0;
		if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
			link_speed = link_speeds[0];
		} else {
			link_speed = link_speeds[3];
			if (mb[1] < 5)
				link_speed = link_speeds[mb[1]];
			ha->link_data_rate = mb[1];
		}

		DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n",
		    ha->host_no, link_speed));
		qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n",
		    link_speed);

		ha->flags.management_server_logged_in = 0;

		/* Update AEN queue. */
		qla2x00_enqueue_aen(ha, MBA_LOOP_UP, NULL);
		break;

	case MBA_LOOP_DOWN:		/* Loop Down Event */
		DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN.\n",
		    ha->host_no));
		qla_printk(KERN_INFO, ha, "LOOP DOWN detected.\n");

		if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
			atomic_set(&ha->loop_state, LOOP_DOWN);
			atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
			ha->device_flags |= DFLG_NO_CABLE;
			qla2x00_mark_all_devices_lost(ha);
		}

		ha->flags.management_server_logged_in = 0;
		ha->link_data_rate = 0;

		/* Update AEN queue. */
		qla2x00_enqueue_aen(ha, MBA_LOOP_DOWN, NULL);
		break;

	case MBA_LIP_RESET:		/* LIP reset occurred */
		mb[1] = RD_MAILBOX_REG(ha, reg, 1);

		DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
		    ha->host_no, mb[1]));
		qla_printk(KERN_INFO, ha,
		    "LIP reset occured (%x).\n", mb[1]);

		if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
			atomic_set(&ha->loop_state, LOOP_DOWN);
			atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
			qla2x00_mark_all_devices_lost(ha);
		}

		set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);

		ha->operating_mode = LOOP;
		ha->flags.management_server_logged_in = 0;

		/* Update AEN queue. */
		qla2x00_enqueue_aen(ha, MBA_LIP_RESET, NULL);

		ha->total_lip_cnt++;
		break;

	case MBA_POINT_TO_POINT:	/* Point-to-Point */
		if (IS_QLA2100(ha))
			break;

		DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n",
		    ha->host_no));

		/*
		 * Until there's a transition from loop down to loop up, treat
		 * this as loop down only.
		 */
		if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
			atomic_set(&ha->loop_state, LOOP_DOWN);
			if (!atomic_read(&ha->loop_down_timer))
				atomic_set(&ha->loop_down_timer,
				    LOOP_DOWN_TIME);
			qla2x00_mark_all_devices_lost(ha);
		}

		if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
			set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
		}
		set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
		break;

	case MBA_CHG_IN_CONNECTION:	/* Change in connection mode */
		if (IS_QLA2100(ha))
			break;

		mb[1] = RD_MAILBOX_REG(ha, reg, 1);

		DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection "
		    "received.\n",
		    ha->host_no));
		qla_printk(KERN_INFO, ha,
		    "Configuration change detected: value=%x.\n", mb[1]);

		if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
			atomic_set(&ha->loop_state, LOOP_DOWN);  
			if (!atomic_read(&ha->loop_down_timer))
				atomic_set(&ha->loop_down_timer,
				    LOOP_DOWN_TIME);
			qla2x00_mark_all_devices_lost(ha);
		}

		set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
		set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
		break;

	case MBA_PORT_UPDATE:		/* Port database update */
		mb[1] = RD_MAILBOX_REG(ha, reg, 1);
		mb[2] = RD_MAILBOX_REG(ha, reg, 2);

		/*
		 * If a single remote port just logged into (or logged out of)
		 * us, create a new entry in our rscn fcports list and handle
		 * the event like an RSCN.
		 */
		if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA6312(ha) &&
		    !IS_QLA6322(ha) && ha->flags.init_done && mb[1] != 0xffff &&
		    ((ha->operating_mode == P2P && mb[1] != 0) ||
		    (ha->operating_mode != P2P && mb[1] !=
			SNS_FIRST_LOOP_ID)) && (mb[2] == 6 || mb[2] == 7)) {
			int rval;
			fc_port_t *rscn_fcport;

			/* Create new fcport for login. */
			rscn_fcport = qla2x00_alloc_rscn_fcport(ha, GFP_ATOMIC);
			if (rscn_fcport) {
				DEBUG14(printk("scsi(%ld): Port Update -- "
				    "creating RSCN fcport %p for login.\n",
				    ha->host_no, rscn_fcport));

				rscn_fcport->loop_id = mb[1];
				rscn_fcport->d_id.b24 = INVALID_PORT_ID;
				atomic_set(&rscn_fcport->state,
				    FCS_DEVICE_LOST);
				list_add_tail(&rscn_fcport->list,
				    &ha->rscn_fcports);

				rval = qla2x00_handle_port_rscn(ha, 0,
				    rscn_fcport, 1);
				if (rval == QLA_SUCCESS)
					break;
			} else {
				DEBUG14(printk("scsi(%ld): Port Update -- "
				    "-- unable to allocate RSCN fcport "
				    "login.\n", ha->host_no));
			}
		}

		/*
		 * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET
		 * event etc. earlier indicating loop is down) then process
		 * it.  Otherwise ignore it and Wait for RSCN to come in.
		 */
		if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
			DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE "
			    "ignored.\n", ha->host_no));
			break;
		}

		DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
		    ha->host_no));
		DEBUG(printk(KERN_INFO
		    "scsi(%ld): Port database changed %04x %04x.\n",
		    ha->host_no, mb[1], mb[2]));

		/*
		 * Mark all devices as missing so we will login again.
		 */
		atomic_set(&ha->loop_state, LOOP_UP);

		atomic_set(&ha->loop_down_timer, 0);
		qla2x00_mark_all_devices_lost(ha);

		ha->flags.rscn_queue_overflow = 1;

		set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
		set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);

		/* Update AEN queue. */
		qla2x00_enqueue_aen(ha, MBA_PORT_UPDATE, NULL);
		break;

	case MBA_RSCN_UPDATE:		/* State Change Registration */
		mb[1] = RD_MAILBOX_REG(ha, reg, 1);
		mb[2] = RD_MAILBOX_REG(ha, reg, 2);

		DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
		    ha->host_no));
		DEBUG(printk(KERN_INFO
		    "scsi(%ld): RSCN database changed -- %04x %04x.\n",
		    ha->host_no, mb[1], mb[2]));

		rscn_entry = (mb[1] << 16) | mb[2];
		host_pid = (ha->d_id.b.domain << 16) | (ha->d_id.b.area << 8) |
		    ha->d_id.b.al_pa;
		if (rscn_entry == host_pid) {
			DEBUG(printk(KERN_INFO
			    "scsi(%ld): Ignoring RSCN update to local host "
			    "port ID (%06x)\n",
			    ha->host_no, host_pid));
			break;
		}

		rscn_queue_index = ha->rscn_in_ptr + 1;
		if (rscn_queue_index == MAX_RSCN_COUNT)
			rscn_queue_index = 0;
		if (rscn_queue_index != ha->rscn_out_ptr) {
			ha->rscn_queue[ha->rscn_in_ptr] = rscn_entry;
			ha->rscn_in_ptr = rscn_queue_index;
		} else {
			ha->flags.rscn_queue_overflow = 1;
		}

		atomic_set(&ha->loop_state, LOOP_UPDATE);
		atomic_set(&ha->loop_down_timer, 0);
		ha->flags.management_server_logged_in = 0;

		set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
		set_bit(RSCN_UPDATE, &ha->dpc_flags);

		/* Update AEN queue. */
		qla2x00_enqueue_aen(ha, MBA_RSCN_UPDATE, &mb[0]);
		break;

	/* case MBA_RIO_RESPONSE: */
	case MBA_ZIO_RESPONSE:
		DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n",
		    ha->host_no));
		DEBUG(printk(KERN_INFO
		    "scsi(%ld): [R|Z]IO update completion.\n",
		    ha->host_no));

		qla2x00_process_response_queue(ha);
		break;
	}
}
Пример #17
0
/**
 * qla2x00_intr_handler() - Process interrupts for the ISP.
 * @irq:
 * @dev_id: SCSI driver HA context
 * @regs:
 *
 * Called by system whenever the host adapter generates an interrupt.
 *
 * Returns handled flag.
 */
irqreturn_t
qla2x00_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
{
	scsi_qla_host_t	*ha;
	device_reg_t	*reg;
	uint32_t	mbx;
	int		status = 0;
	unsigned long	flags = 0;
	unsigned long	mbx_flags = 0;
	unsigned long	intr_iter;
	uint32_t	stat;
	uint16_t	hccr;

	/* Don't loop forever, interrupt are OFF */
	intr_iter = 50; 

	ha = (scsi_qla_host_t *) dev_id;
	if (!ha) {
		printk(KERN_INFO
		    "%s(): NULL host pointer\n", __func__);
		return (IRQ_NONE);
	}

	reg = ha->iobase;

	spin_lock_irqsave(&ha->hardware_lock, flags);

	for (;;) {
		/* Relax CPU! */
		if (!(intr_iter--))
			break;

		if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
			if ((RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) == 0)
				break;

			if (RD_REG_WORD(&reg->semaphore) & BIT_0) {
				WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
				RD_REG_WORD(&reg->hccr);

				/* Get mailbox data. */
				mbx = RD_MAILBOX_REG(ha, reg, 0);
				if (mbx > 0x3fff && mbx < 0x8000) {
					qla2x00_mbx_completion(ha,
					    (uint16_t)mbx);
					status |= MBX_INTERRUPT;
				} else if (mbx > 0x7fff && mbx < 0xc000) {
					qla2x00_async_event(ha, mbx);
				} else {
					/*EMPTY*/
					DEBUG2(printk("scsi(%ld): Unrecognized "
					    "interrupt type (%d)\n",
					    ha->host_no, mbx));
				}
				/* Release mailbox registers. */
				WRT_REG_WORD(&reg->semaphore, 0);
				/* Workaround for ISP2100 chip. */
				if (IS_QLA2100(ha))
					RD_REG_WORD(&reg->semaphore);
			} else {
				qla2x00_process_response_queue(ha);
	
				WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
				RD_REG_WORD(&reg->hccr);
			}
		} else /* IS_QLA23XX(ha) */ {
			stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
			if ((stat & HSR_RISC_INT) == 0)
				break;

			mbx = MSW(stat);
			switch (stat & 0xff) {
			case 0x13:
				qla2x00_process_response_queue(ha);
				break;
			case 0x1:
			case 0x2:
			case 0x10:
			case 0x11:
				qla2x00_mbx_completion(ha, (uint16_t)mbx);
				status |= MBX_INTERRUPT;

				/* Release mailbox registers. */
				WRT_REG_WORD(&reg->semaphore, 0);
				break;
			case 0x12:
				qla2x00_async_event(ha, mbx);
				break;
			case 0x15:
				mbx = mbx << 16 | MBA_CMPLT_1_16BIT;
				qla2x00_async_event(ha, mbx);
				break;
			case 0x16:
				mbx = mbx << 16 | MBA_SCSI_COMPLETION;
				qla2x00_async_event(ha, mbx);
				break;
			default:
				hccr = RD_REG_WORD(&reg->hccr);
				if (hccr & HCCR_RISC_PAUSE) {
					qla_printk(KERN_INFO, ha,
					    "RISC paused, dumping HCCR=%x\n",
					    hccr);

					/*
					 * Issue a "HARD" reset in order for
					 * the RISC interrupt bit to be
					 * cleared.  Schedule a big hammmer to
					 * get out of the RISC PAUSED state.
					 */
					WRT_REG_WORD(&reg->hccr,
					    HCCR_RESET_RISC);
					RD_REG_WORD(&reg->hccr);
					set_bit(ISP_ABORT_NEEDED,
					    &ha->dpc_flags);
					break;
				} else {
					DEBUG2(printk("scsi(%ld): Unrecognized "
					    "interrupt type (%d)\n",
					    ha->host_no, stat & 0xff));
				}
				break;
			}
			WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
			RD_REG_WORD(&reg->hccr);
		}
	}

	spin_unlock_irqrestore(&ha->hardware_lock, flags);

	qla2x00_next(ha);
	ha->last_irq_cpu = smp_processor_id();
	ha->total_isr_cnt++;

	if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
	    (status & MBX_INTERRUPT) && ha->flags.mbox_int) {

		/* There was a mailbox completion */
		DEBUG3(printk("%s(%ld): Going to get mbx reg lock.\n",
		    __func__, ha->host_no));

		spin_lock_irqsave(&ha->mbx_reg_lock, mbx_flags);

		if (ha->mcp == NULL) {
			DEBUG3(printk("%s(%ld): Error mbx pointer.\n",
			    __func__, ha->host_no));
		} else {
			DEBUG3(printk("%s(%ld): Going to set mbx intr flags. "
			    "cmd=%x.\n",
			    __func__, ha->host_no, ha->mcp->mb[0]));
		}
		set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);

		DEBUG3(printk("%s(%ld): Going to wake up mbx function for "
		    "completion.\n",
		    __func__, ha->host_no));

		up(&ha->mbx_intr_sem);

		DEBUG3(printk("%s(%ld): Going to release mbx reg lock.\n",
		    __func__, ha->host_no));

		spin_unlock_irqrestore(&ha->mbx_reg_lock, mbx_flags);
	}

	if (!list_empty(&ha->done_queue))
		qla2x00_done(ha);

	/* Wakeup the DPC routine */
	if ((!ha->flags.mbox_busy &&
	    (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
		test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
		test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))) &&
		    ha->dpc_wait && !ha->dpc_active) {

		up(ha->dpc_wait);
	}

	return (IRQ_HANDLED);
}
Пример #18
0
/**
 * qla2x00_async_event() - Process aynchronous events.
 * @ha: SCSI driver HA context
 * @mb: Mailbox registers (0 - 3)
 */
static void
qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
{
#define LS_UNKNOWN	2
	static char	*link_speeds[5] = { "1", "2", "?", "4", "10" };
	char		*link_speed;
	uint16_t	handle_cnt;
	uint16_t	cnt;
	uint32_t	handles[5];
	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
	uint32_t	rscn_entry, host_pid;
	uint8_t		rscn_queue_index;

	/* Setup to process RIO completion. */
	handle_cnt = 0;
	switch (mb[0]) {
	case MBA_SCSI_COMPLETION:
		handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
		handle_cnt = 1;
		break;
	case MBA_CMPLT_1_16BIT:
		handles[0] = mb[1];
		handle_cnt = 1;
		mb[0] = MBA_SCSI_COMPLETION;
		break;
	case MBA_CMPLT_2_16BIT:
		handles[0] = mb[1];
		handles[1] = mb[2];
		handle_cnt = 2;
		mb[0] = MBA_SCSI_COMPLETION;
		break;
	case MBA_CMPLT_3_16BIT:
		handles[0] = mb[1];
		handles[1] = mb[2];
		handles[2] = mb[3];
		handle_cnt = 3;
		mb[0] = MBA_SCSI_COMPLETION;
		break;
	case MBA_CMPLT_4_16BIT:
		handles[0] = mb[1];
		handles[1] = mb[2];
		handles[2] = mb[3];
		handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
		handle_cnt = 4;
		mb[0] = MBA_SCSI_COMPLETION;
		break;
	case MBA_CMPLT_5_16BIT:
		handles[0] = mb[1];
		handles[1] = mb[2];
		handles[2] = mb[3];
		handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
		handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
		handle_cnt = 5;
		mb[0] = MBA_SCSI_COMPLETION;
		break;
	case MBA_CMPLT_2_32BIT:
		handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
		handles[1] = le32_to_cpu(
		    ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
		    RD_MAILBOX_REG(ha, reg, 6));
		handle_cnt = 2;
		mb[0] = MBA_SCSI_COMPLETION;
		break;
	default:
		break;
	}

	switch (mb[0]) {
	case MBA_SCSI_COMPLETION:	/* Fast Post */
		if (!ha->flags.online)
			break;

		for (cnt = 0; cnt < handle_cnt; cnt++)
			qla2x00_process_completed_request(ha, handles[cnt]);
		break;

	case MBA_RESET:			/* Reset */
		DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha->host_no));

		set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
		break;

	case MBA_SYSTEM_ERR:		/* System Error */
		mb[1] = RD_MAILBOX_REG(ha, reg, 1);
		mb[2] = RD_MAILBOX_REG(ha, reg, 2);
		mb[3] = RD_MAILBOX_REG(ha, reg, 3);

		qla_printk(KERN_INFO, ha,
		    "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n",
		    mb[1], mb[2], mb[3]);

		ha->isp_ops.fw_dump(ha, 1);

		if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
			if (mb[1] == 0 && mb[2] == 0) {
				qla_printk(KERN_ERR, ha,
				    "Unrecoverable Hardware Error: adapter "
				    "marked OFFLINE!\n");
				ha->flags.online = 0;
			} else
				set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
		} else if (mb[1] == 0) {
			qla_printk(KERN_INFO, ha,
			    "Unrecoverable Hardware Error: adapter marked "
			    "OFFLINE!\n");
			ha->flags.online = 0;
		} else
			set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
		break;

	case MBA_REQ_TRANSFER_ERR:	/* Request Transfer Error */
		DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n",
		    ha->host_no));
		qla_printk(KERN_WARNING, ha, "ISP Request Transfer Error.\n");

		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
		break;

	case MBA_RSP_TRANSFER_ERR:	/* Response Transfer Error */
		DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
		    ha->host_no));
		qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n");

		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
		break;

	case MBA_WAKEUP_THRES:		/* Request Queue Wake-up */
		DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
		    ha->host_no));
		break;

	case MBA_LIP_OCCURRED:		/* Loop Initialization Procedure */
		DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha->host_no,
		    mb[1]));
		qla_printk(KERN_INFO, ha, "LIP occured (%x).\n", mb[1]);

		if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
			atomic_set(&ha->loop_state, LOOP_DOWN);
			atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
			qla2x00_mark_all_devices_lost(ha, 1);
		}

		set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);

		ha->flags.management_server_logged_in = 0;
		break;

	case MBA_LOOP_UP:		/* Loop Up Event */
		if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
			link_speed = link_speeds[0];
			ha->link_data_rate = LDR_1GB;
		} else {
			link_speed = link_speeds[LS_UNKNOWN];
			if (mb[1] < 5)
				link_speed = link_speeds[mb[1]];
			ha->link_data_rate = mb[1];
		}

		DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n",
		    ha->host_no, link_speed));
		qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n",
		    link_speed);

		ha->flags.management_server_logged_in = 0;
		break;

	case MBA_LOOP_DOWN:		/* Loop Down Event */
		DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN (%x).\n",
		    ha->host_no, mb[1]));
		qla_printk(KERN_INFO, ha, "LOOP DOWN detected (%x).\n", mb[1]);

		if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
			atomic_set(&ha->loop_state, LOOP_DOWN);
			atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
			ha->device_flags |= DFLG_NO_CABLE;
			qla2x00_mark_all_devices_lost(ha, 1);
		}

		ha->flags.management_server_logged_in = 0;
		ha->link_data_rate = LDR_UNKNOWN;
		if (ql2xfdmienable)
			set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags);
		break;

	case MBA_LIP_RESET:		/* LIP reset occurred */
		DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
		    ha->host_no, mb[1]));
		qla_printk(KERN_INFO, ha,
		    "LIP reset occured (%x).\n", mb[1]);

		if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
			atomic_set(&ha->loop_state, LOOP_DOWN);
			atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
			qla2x00_mark_all_devices_lost(ha, 1);
		}

		set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);

		ha->operating_mode = LOOP;
		ha->flags.management_server_logged_in = 0;
		break;

	case MBA_POINT_TO_POINT:	/* Point-to-Point */
		if (IS_QLA2100(ha))
			break;

		DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n",
		    ha->host_no));

		/*
		 * Until there's a transition from loop down to loop up, treat
		 * this as loop down only.
		 */
		if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
			atomic_set(&ha->loop_state, LOOP_DOWN);
			if (!atomic_read(&ha->loop_down_timer))
				atomic_set(&ha->loop_down_timer,
				    LOOP_DOWN_TIME);
			qla2x00_mark_all_devices_lost(ha, 1);
		}

		if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
			set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
		}
		set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
		break;

	case MBA_CHG_IN_CONNECTION:	/* Change in connection mode */
		if (IS_QLA2100(ha))
			break;

		DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection "
		    "received.\n",
		    ha->host_no));
		qla_printk(KERN_INFO, ha,
		    "Configuration change detected: value=%x.\n", mb[1]);

		if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
			atomic_set(&ha->loop_state, LOOP_DOWN);
			if (!atomic_read(&ha->loop_down_timer))
				atomic_set(&ha->loop_down_timer,
				    LOOP_DOWN_TIME);
			qla2x00_mark_all_devices_lost(ha, 1);
		}

		set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
		set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
		break;

	case MBA_PORT_UPDATE:		/* Port database update */
		/*
		 * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET
		 * event etc. earlier indicating loop is down) then process
		 * it.  Otherwise ignore it and Wait for RSCN to come in.
		 */
		atomic_set(&ha->loop_down_timer, 0);
		if (atomic_read(&ha->loop_state) != LOOP_DOWN &&
		    atomic_read(&ha->loop_state) != LOOP_DEAD) {
			DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE "
			    "ignored %04x/%04x/%04x.\n", ha->host_no, mb[1],
			    mb[2], mb[3]));
			break;
		}

		DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
		    ha->host_no));
		DEBUG(printk(KERN_INFO
		    "scsi(%ld): Port database changed %04x %04x %04x.\n",
		    ha->host_no, mb[1], mb[2], mb[3]));

		/*
		 * Mark all devices as missing so we will login again.
		 */
		atomic_set(&ha->loop_state, LOOP_UP);

		qla2x00_mark_all_devices_lost(ha, 1);

		ha->flags.rscn_queue_overflow = 1;

		set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
		set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
		break;

	case MBA_RSCN_UPDATE:		/* State Change Registration */
		DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
		    ha->host_no));
		DEBUG(printk(KERN_INFO
		    "scsi(%ld): RSCN database changed -- %04x %04x.\n",
		    ha->host_no, mb[1], mb[2]));

		rscn_entry = (mb[1] << 16) | mb[2];
		host_pid = (ha->d_id.b.domain << 16) | (ha->d_id.b.area << 8) |
		    ha->d_id.b.al_pa;
		if (rscn_entry == host_pid) {
			DEBUG(printk(KERN_INFO
			    "scsi(%ld): Ignoring RSCN update to local host "
			    "port ID (%06x)\n",
			    ha->host_no, host_pid));
			break;
		}

		rscn_queue_index = ha->rscn_in_ptr + 1;
		if (rscn_queue_index == MAX_RSCN_COUNT)
			rscn_queue_index = 0;
		if (rscn_queue_index != ha->rscn_out_ptr) {
			ha->rscn_queue[ha->rscn_in_ptr] = rscn_entry;
			ha->rscn_in_ptr = rscn_queue_index;
		} else {
			ha->flags.rscn_queue_overflow = 1;
		}

		atomic_set(&ha->loop_state, LOOP_UPDATE);
		atomic_set(&ha->loop_down_timer, 0);
		ha->flags.management_server_logged_in = 0;

		set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
		set_bit(RSCN_UPDATE, &ha->dpc_flags);
		break;

	/* case MBA_RIO_RESPONSE: */
	case MBA_ZIO_RESPONSE:
		DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n",
		    ha->host_no));
		DEBUG(printk(KERN_INFO
		    "scsi(%ld): [R|Z]IO update completion.\n",
		    ha->host_no));

		if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
			qla24xx_process_response_queue(ha);
		else
			qla2x00_process_response_queue(ha);
		break;

	case MBA_DISCARD_RND_FRAME:
		DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x "
		    "%04x.\n", ha->host_no, mb[1], mb[2], mb[3]));
		break;

	case MBA_TRACE_NOTIFICATION:
		DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n",
		ha->host_no, mb[1], mb[2]));
		break;
	}
}
Пример #19
0
/**
 * qla2x00_status_entry() - Process a Status IOCB entry.
 * @ha: SCSI driver HA context
 * @pkt: Entry pointer
 */
static void
qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt)
{
	int		ret;
	unsigned	b, t, l;
	srb_t		*sp;
	os_lun_t	*lq;
	os_tgt_t	*tq;
	fc_port_t	*fcport;
	struct scsi_cmnd *cp;
	uint16_t	comp_status;
	uint16_t	scsi_status;
	uint8_t		lscsi_status;
	uint32_t	resid;
	uint8_t		sense_sz = 0;
	uint16_t	rsp_info_len;

	/* Fast path completion. */
	if (le16_to_cpu(pkt->comp_status) == CS_COMPLETE &&
	    (le16_to_cpu(pkt->scsi_status) & SS_MASK) == 0) {
		qla2x00_process_completed_request(ha, pkt->handle);

		return;
	}

	/* Validate handle. */
	if (pkt->handle < MAX_OUTSTANDING_COMMANDS) {
		sp = ha->outstanding_cmds[pkt->handle];
		ha->outstanding_cmds[pkt->handle] = 0;
	} else
		sp = NULL;

	if (sp == NULL) {
		DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n",
		    ha->host_no));
		qla_printk(KERN_WARNING, ha, "Status Entry invalid handle.\n");

		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
		if (ha->dpc_wait && !ha->dpc_active) 
			up(ha->dpc_wait);

		return;
	}
	cp = sp->cmd;
	if (cp == NULL) {
		DEBUG2(printk("scsi(%ld): Command already returned back to OS "
		    "pkt->handle=%d sp=%p sp->state:%d\n",
		    ha->host_no, pkt->handle, sp, sp->state));
		qla_printk(KERN_WARNING, ha,
		    "Command is NULL: already returned to OS (sp=%p)\n", sp);

		return;
	}

	if (ha->actthreads)
		ha->actthreads--;

	if (sp->lun_queue == NULL) {
		DEBUG2(printk("scsi(%ld): Status Entry invalid lun pointer.\n",
		    ha->host_no));
		qla_printk(KERN_WARNING, ha,
		    "Status Entry invalid lun pointer.\n");

		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
		if (ha->dpc_wait && !ha->dpc_active) 
			up(ha->dpc_wait);

		return;
	}

	sp->lun_queue->out_cnt--;

	comp_status = le16_to_cpu(pkt->comp_status);
	/* Mask of reserved bits 12-15, before we examine the scsi status */
	scsi_status = le16_to_cpu(pkt->scsi_status) & SS_MASK;
	lscsi_status = scsi_status & STATUS_MASK;

	CMD_ENTRY_STATUS(cp) = pkt->entry_status;
	CMD_COMPL_STATUS(cp) = comp_status;
	CMD_SCSI_STATUS(cp) = scsi_status;

	/* Generate LU queue on cntrl, target, LUN */
	b = cp->device->channel;
	t = cp->device->id;
	l = cp->device->lun,

	tq = sp->tgt_queue;
	lq = sp->lun_queue;

	/*
	 * If loop is in transient state Report DID_BUS_BUSY
	 */
	if ((comp_status != CS_COMPLETE || scsi_status != 0)) {
		if (!(sp->flags & SRB_IOCTL) &&
		    (atomic_read(&ha->loop_down_timer) ||
			atomic_read(&ha->loop_state) != LOOP_READY)) {

			DEBUG2(printk("scsi(%ld:%d:%d:%d): Loop Not Ready - "
			    "pid=%lx.\n",
			    ha->host_no, b, t, l, cp->serial_number));

			qla2x00_extend_timeout(cp, EXTEND_CMD_TIMEOUT);
			add_to_retry_queue(ha, sp);
			return;
		}
	}

	/* Check for any FCP transport errors. */
	if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
		rsp_info_len = le16_to_cpu(pkt->rsp_info_len);
		if (rsp_info_len > 3 && pkt->rsp_info[3]) {
			DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol "
			    "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..."
			    "retrying command\n", ha->host_no, b, t, l,
			    rsp_info_len, pkt->rsp_info[0], pkt->rsp_info[1],
			    pkt->rsp_info[2], pkt->rsp_info[3],
			    pkt->rsp_info[4], pkt->rsp_info[5],
			    pkt->rsp_info[6], pkt->rsp_info[7]));

			cp->result = DID_BUS_BUSY << 16;
			add_to_done_queue(ha, sp);
			return;
		}
	}

	/*
	 * Based on Host and scsi status generate status code for Linux
	 */
	switch (comp_status) {
	case CS_COMPLETE:
		if (scsi_status == 0) {
			cp->result = DID_OK << 16;
			break;
		}
		if (lscsi_status == SS_BUSY_CONDITION) {
			cp->result = DID_BUS_BUSY << 16 | lscsi_status;
			break;
		}

		cp->result = DID_OK << 16 | lscsi_status;

		if (lscsi_status != SS_CHECK_CONDITION)
			break;

		/*
		 * Copy Sense Data into sense buffer
		 */
		memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer));

		if (!(scsi_status & SS_SENSE_LEN_VALID))
			break;

		if (le16_to_cpu(pkt->req_sense_length) <
		    sizeof(cp->sense_buffer))
			sense_sz = le16_to_cpu(pkt->req_sense_length);
		else
			sense_sz = sizeof(cp->sense_buffer) - 1;

		CMD_ACTUAL_SNSLEN(cp) = sense_sz;
		sp->request_sense_length = sense_sz;
		sp->request_sense_ptr = cp->sense_buffer;

		if (sp->request_sense_length > 32)
			sense_sz = 32;

		memcpy(cp->sense_buffer, pkt->req_sense_data, sense_sz);

		sp->request_sense_ptr += sense_sz;
		sp->request_sense_length -= sense_sz;
		if (sp->request_sense_length != 0)
			ha->status_srb = sp;

		if (!(sp->flags & SRB_IOCTL) &&
		    qla2x00_check_sense(cp, lq) == QLA_SUCCESS) {
			/* Throw away status_cont if any */
			ha->status_srb = NULL;
			add_to_scsi_retry_queue(ha, sp);
			return;
		}

		DEBUG5(printk("%s(): Check condition Sense data, "
		    "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n",
		    __func__, ha->host_no, b, t, l, cp,
		    cp->serial_number));
		if (sense_sz)
			DEBUG5(qla2x00_dump_buffer(cp->sense_buffer,
			    CMD_ACTUAL_SNSLEN(cp)));
		break;

	case CS_DATA_UNDERRUN:
		DEBUG2(printk(KERN_INFO
		    "scsi(%ld:%d:%d) UNDERRUN status detected 0x%x-0x%x.\n",
		    ha->host_no, t, l, comp_status, scsi_status));

		resid = le32_to_cpu(pkt->residual_length);
		CMD_RESID_LEN(cp) = resid;

		/*
		 * Check to see if SCSI Status is non zero. If so report SCSI 
		 * Status.
		 */
		if (lscsi_status != 0) {
			if (lscsi_status == SS_BUSY_CONDITION) {
				cp->result = DID_BUS_BUSY << 16 |
				    lscsi_status;
				break;
			}

			cp->result = DID_OK << 16 | lscsi_status;

			if (lscsi_status != SS_CHECK_CONDITION)
				break;

			/* Copy Sense Data into sense buffer */
			memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer));

			if (!(scsi_status & SS_SENSE_LEN_VALID))
				break;

			if (le16_to_cpu(pkt->req_sense_length) <
			    sizeof(cp->sense_buffer))
				sense_sz = le16_to_cpu(pkt->req_sense_length);
			else
				sense_sz = sizeof(cp->sense_buffer) - 1;

			CMD_ACTUAL_SNSLEN(cp) = sense_sz;
			sp->request_sense_length = sense_sz;
			sp->request_sense_ptr = cp->sense_buffer;

			if (sp->request_sense_length > 32) 
				sense_sz = 32;

			memcpy(cp->sense_buffer, pkt->req_sense_data, sense_sz);

			sp->request_sense_ptr += sense_sz;
			sp->request_sense_length -= sense_sz;
			if (sp->request_sense_length != 0)
				ha->status_srb = sp;

			if (!(sp->flags & SRB_IOCTL) &&
			    (qla2x00_check_sense(cp, lq) == QLA_SUCCESS)) {
				ha->status_srb = NULL;
				add_to_scsi_retry_queue(ha, sp);
				return;
			}
			DEBUG5(printk("%s(): Check condition Sense data, "
			    "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n",
			    __func__, ha->host_no, b, t, l, cp,
			    cp->serial_number));
			if (sense_sz)
				DEBUG5(qla2x00_dump_buffer(cp->sense_buffer,
				    CMD_ACTUAL_SNSLEN(cp)));
		} else {
			/*
			 * If RISC reports underrun and target does not report
			 * it then we must have a lost frame, so tell upper
			 * layer to retry it by reporting a bus busy.
			 */
			if (!(scsi_status & SS_RESIDUAL_UNDER)) {
				DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped "
				    "frame(s) detected (%x of %x bytes)..."
				    "retrying command.\n",
				    ha->host_no, b, t, l, resid,
				    cp->request_bufflen));

				cp->result = DID_BUS_BUSY << 16;
				ha->dropped_frame_error_cnt++;
				break;
			}

			/* Handle mid-layer underflow */
			cp->resid = resid;
			if ((unsigned)(cp->request_bufflen - resid) <
			    cp->underflow) {
				qla_printk(KERN_INFO, ha,
				    "scsi(%ld:%d:%d:%d): Mid-layer underflow "
				    "detected (%x of %x bytes)...returning "
				    "error status.\n",
				    ha->host_no, b, t, l, resid,
				    cp->request_bufflen);

				cp->result = DID_ERROR << 16;
				break;
			}

			/* Everybody online, looking good... */
			cp->result = DID_OK << 16;
		}
		break;

	case CS_DATA_OVERRUN:
		DEBUG2(printk(KERN_INFO
		    "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n",
		    ha->host_no, t, l, comp_status, scsi_status));
		DEBUG2(printk(KERN_INFO
		    "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
		    cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3],
		    cp->cmnd[4], cp->cmnd[5]));
		DEBUG2(printk(KERN_INFO
		    "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR "
		    "status!\n",
		    cp->serial_number, cp->request_bufflen,
		    le32_to_cpu(pkt->residual_length)));

		cp->result = DID_ERROR << 16;
		break;

	case CS_PORT_LOGGED_OUT:
	case CS_PORT_CONFIG_CHG:
	case CS_PORT_BUSY:
	case CS_INCOMPLETE:
	case CS_PORT_UNAVAILABLE:
		/*
		 * If the port is in Target Down state, return all IOs for this
		 * Target with DID_NO_CONNECT ELSE Queue the IOs in the
		 * retry_queue.
		 */
		fcport = sp->fclun->fcport;
		DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down "
		    "pid=%ld, compl status=0x%x, port state=0x%x\n",
		    ha->host_no, t, l, cp->serial_number, comp_status,
		    atomic_read(&fcport->state)));

		if ((sp->flags & SRB_IOCTL) ||
		    atomic_read(&fcport->state) == FCS_DEVICE_DEAD) {
			cp->result = DID_NO_CONNECT << 16;
			if (atomic_read(&ha->loop_state) == LOOP_DOWN) 
				sp->err_id = SRB_ERR_LOOP;
			else
				sp->err_id = SRB_ERR_PORT;
			add_to_done_queue(ha, sp);
		} else {
			qla2x00_extend_timeout(cp, EXTEND_CMD_TIMEOUT);
			add_to_retry_queue(ha, sp);
		}

		if (atomic_read(&fcport->state) == FCS_ONLINE) {
			qla2x00_mark_device_lost(ha, fcport, 1);
		}

		return;
		break;

	case CS_RESET:
		DEBUG2(printk(KERN_INFO
		    "scsi(%ld): RESET status detected 0x%x-0x%x.\n",
		    ha->host_no, comp_status, scsi_status));

		if (sp->flags & SRB_IOCTL) {
			cp->result = DID_RESET << 16;
		} else {
			qla2x00_extend_timeout(cp, EXTEND_CMD_TIMEOUT);
			add_to_retry_queue(ha, sp);
			return;
		}
		break;

	case CS_ABORTED:
		/* 
		 * hv2.19.12 - DID_ABORT does not retry the request if we
		 * aborted this request then abort otherwise it must be a
		 * reset.
		 */
		DEBUG2(printk(KERN_INFO
		    "scsi(%ld): ABORT status detected 0x%x-0x%x.\n",
		    ha->host_no, comp_status, scsi_status));

		cp->result = DID_RESET << 16;
		break;

	case CS_TIMEOUT:
		DEBUG2(printk(KERN_INFO
		    "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x.\n",
		    ha->host_no, b, t, l, comp_status, scsi_status));

		cp->result = DID_BUS_BUSY << 16;

		fcport = lq->fclun->fcport;

		/* Check to see if logout occurred */
		if ((le16_to_cpu(pkt->status_flags) & SF_LOGOUT_SENT)) {
			qla2x00_mark_device_lost(ha, fcport, 1);
		}
		break;

	case CS_QUEUE_FULL:
		DEBUG2(printk(KERN_INFO
		    "scsi(%ld): QUEUE FULL status detected 0x%x-0x%x.\n",
		    ha->host_no, comp_status, scsi_status));

		/* SCSI Mid-Layer handles device queue full */

		cp->result = DID_OK << 16 | lscsi_status; 

		/* TODO: ??? */
		/* Adjust queue depth */
		ret = scsi_track_queue_full(cp->device,
		    sp->lun_queue->out_cnt - 1);
		if (ret) {
			qla_printk(KERN_INFO, ha,
			    "scsi(%ld:%d:%d:%d): Queue depth adjusted to %d.\n",
			    ha->host_no, cp->device->channel, cp->device->id,
			    cp->device->lun, ret);
		}
		break;

	default:
		DEBUG3(printk("scsi(%ld): Error detected (unknown status) "
		    "0x%x-0x%x.\n",
		    ha->host_no, comp_status, scsi_status));
		qla_printk(KERN_INFO, ha,
		    "Unknown status detected 0x%x-0x%x.\n",
		    comp_status, scsi_status);

		cp->result = DID_ERROR << 16;
		break;
	}

	/* Place command on done queue. */
	if (ha->status_srb == NULL)
		add_to_done_queue(ha, sp);
}
Пример #20
0
/**
 * qla2x00_status_entry() - Process a Status IOCB entry.
 * @ha: SCSI driver HA context
 * @pkt: Entry pointer
 */
static void
qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt)
{
	srb_t		*sp;
	fc_port_t	*fcport;
	struct scsi_cmnd *cp;
	sts_entry_t *sts;
	struct sts_entry_24xx *sts24;
	uint16_t	comp_status;
	uint16_t	scsi_status;
	uint8_t		lscsi_status;
	int32_t		resid;
	uint32_t	sense_len, rsp_info_len, resid_len, fw_resid_len;
	uint8_t		*rsp_info, *sense_data;

	sts = (sts_entry_t *) pkt;
	sts24 = (struct sts_entry_24xx *) pkt;
	if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
		comp_status = le16_to_cpu(sts24->comp_status);
		scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
	} else {
		comp_status = le16_to_cpu(sts->comp_status);
		scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
	}

	/* Fast path completion. */
	if (comp_status == CS_COMPLETE && scsi_status == 0) {
		qla2x00_process_completed_request(ha, sts->handle);

		return;
	}

	/* Validate handle. */
	if (sts->handle < MAX_OUTSTANDING_COMMANDS) {
		sp = ha->outstanding_cmds[sts->handle];
		ha->outstanding_cmds[sts->handle] = NULL;
	} else
		sp = NULL;

	if (sp == NULL) {
		DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n",
		    ha->host_no));
		qla_printk(KERN_WARNING, ha, "Status Entry invalid handle.\n");

		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
		qla2xxx_wake_dpc(ha);
		return;
	}
	cp = sp->cmd;
	if (cp == NULL) {
		DEBUG2(printk("scsi(%ld): Command already returned back to OS "
		    "pkt->handle=%d sp=%p.\n", ha->host_no, sts->handle, sp));
		qla_printk(KERN_WARNING, ha,
		    "Command is NULL: already returned to OS (sp=%p)\n", sp);

		return;
	}

  	lscsi_status = scsi_status & STATUS_MASK;
	CMD_ENTRY_STATUS(cp) = sts->entry_status;
	CMD_COMPL_STATUS(cp) = comp_status;
	CMD_SCSI_STATUS(cp) = scsi_status;

	fcport = sp->fcport;

	sense_len = rsp_info_len = resid_len = fw_resid_len = 0;
	if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
		sense_len = le32_to_cpu(sts24->sense_len);
		rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
		resid_len = le32_to_cpu(sts24->rsp_residual_count);
		fw_resid_len = le32_to_cpu(sts24->residual_len);
		rsp_info = sts24->data;
		sense_data = sts24->data;
		host_to_fcp_swap(sts24->data, sizeof(sts24->data));
	} else {
		sense_len = le16_to_cpu(sts->req_sense_length);
		rsp_info_len = le16_to_cpu(sts->rsp_info_len);
		resid_len = le32_to_cpu(sts->residual_length);
		rsp_info = sts->rsp_info;
		sense_data = sts->req_sense_data;
	}

	/* Check for any FCP transport errors. */
	if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
		/* Sense data lies beyond any FCP RESPONSE data. */
		if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
			sense_data += rsp_info_len;
		if (rsp_info_len > 3 && rsp_info[3]) {
			DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol "
			    "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..."
			    "retrying command\n", ha->host_no,
			    cp->device->channel, cp->device->id,
			    cp->device->lun, rsp_info_len, rsp_info[0],
			    rsp_info[1], rsp_info[2], rsp_info[3], rsp_info[4],
			    rsp_info[5], rsp_info[6], rsp_info[7]));

			cp->result = DID_BUS_BUSY << 16;
			qla2x00_sp_compl(ha, sp);
			return;
		}
	}

	/*
	 * Based on Host and scsi status generate status code for Linux
	 */
	switch (comp_status) {
	case CS_COMPLETE:
		if (scsi_status == 0) {
			cp->result = DID_OK << 16;
			break;
		}
		if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
			resid = resid_len;
			cp->resid = resid;
			CMD_RESID_LEN(cp) = resid;

			if (!lscsi_status &&
			    ((unsigned)(cp->request_bufflen - resid) <
			     cp->underflow)) {
				qla_printk(KERN_INFO, ha,
				    "scsi(%ld:%d:%d:%d): Mid-layer underflow "
				    "detected (%x of %x bytes)...returning "
				    "error status.\n", ha->host_no,
				    cp->device->channel, cp->device->id,
				    cp->device->lun, resid,
				    cp->request_bufflen);

				cp->result = DID_ERROR << 16;
				break;
			}
		}
		cp->result = DID_OK << 16 | lscsi_status;

		if (lscsi_status != SS_CHECK_CONDITION)
			break;

		/* Copy Sense Data into sense buffer. */
		memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer));

		if (!(scsi_status & SS_SENSE_LEN_VALID))
			break;

		if (sense_len >= sizeof(cp->sense_buffer))
			sense_len = sizeof(cp->sense_buffer);

		CMD_ACTUAL_SNSLEN(cp) = sense_len;
		sp->request_sense_length = sense_len;
		sp->request_sense_ptr = cp->sense_buffer;

		if (sp->request_sense_length > 32)
			sense_len = 32;

		memcpy(cp->sense_buffer, sense_data, sense_len);

		sp->request_sense_ptr += sense_len;
		sp->request_sense_length -= sense_len;
		if (sp->request_sense_length != 0)
			ha->status_srb = sp;

		DEBUG5(printk("%s(): Check condition Sense data, "
		    "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n", __func__,
		    ha->host_no, cp->device->channel, cp->device->id,
		    cp->device->lun, cp, cp->serial_number));
		if (sense_len)
			DEBUG5(qla2x00_dump_buffer(cp->sense_buffer,
			    CMD_ACTUAL_SNSLEN(cp)));
		break;

	case CS_DATA_UNDERRUN:
		resid = resid_len;
		/* Use F/W calculated residual length. */
		if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
			resid = fw_resid_len;

		if (scsi_status & SS_RESIDUAL_UNDER) {
			cp->resid = resid;
			CMD_RESID_LEN(cp) = resid;
		} else {
			DEBUG2(printk(KERN_INFO
			    "scsi(%ld:%d:%d) UNDERRUN status detected "
			    "0x%x-0x%x. resid=0x%x fw_resid=0x%x cdb=0x%x "
			    "os_underflow=0x%x\n", ha->host_no,
			    cp->device->id, cp->device->lun, comp_status,
			    scsi_status, resid_len, resid, cp->cmnd[0],
			    cp->underflow));

		}

		/*
		 * Check to see if SCSI Status is non zero. If so report SCSI
		 * Status.
		 */
		if (lscsi_status != 0) {
			cp->result = DID_OK << 16 | lscsi_status;

			if (lscsi_status != SS_CHECK_CONDITION)
				break;

			/* Copy Sense Data into sense buffer */
			memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer));

			if (!(scsi_status & SS_SENSE_LEN_VALID))
				break;

			if (sense_len >= sizeof(cp->sense_buffer))
				sense_len = sizeof(cp->sense_buffer);

			CMD_ACTUAL_SNSLEN(cp) = sense_len;
			sp->request_sense_length = sense_len;
			sp->request_sense_ptr = cp->sense_buffer;

			if (sp->request_sense_length > 32)
				sense_len = 32;

			memcpy(cp->sense_buffer, sense_data, sense_len);

			sp->request_sense_ptr += sense_len;
			sp->request_sense_length -= sense_len;
			if (sp->request_sense_length != 0)
				ha->status_srb = sp;

			DEBUG5(printk("%s(): Check condition Sense data, "
			    "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n",
			    __func__, ha->host_no, cp->device->channel,
			    cp->device->id, cp->device->lun, cp,
			    cp->serial_number));

			if (sense_len)
				DEBUG5(qla2x00_dump_buffer(cp->sense_buffer,
				    CMD_ACTUAL_SNSLEN(cp)));
		} else {
			/*
			 * If RISC reports underrun and target does not report
			 * it then we must have a lost frame, so tell upper
			 * layer to retry it by reporting a bus busy.
			 */
			if (!(scsi_status & SS_RESIDUAL_UNDER)) {
				DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped "
				    "frame(s) detected (%x of %x bytes)..."
				    "retrying command.\n", ha->host_no,
				    cp->device->channel, cp->device->id,
				    cp->device->lun, resid,
				    cp->request_bufflen));

				cp->result = DID_BUS_BUSY << 16;
				break;
			}

			/* Handle mid-layer underflow */
			if ((unsigned)(cp->request_bufflen - resid) <
			    cp->underflow) {
				qla_printk(KERN_INFO, ha,
				    "scsi(%ld:%d:%d:%d): Mid-layer underflow "
				    "detected (%x of %x bytes)...returning "
				    "error status.\n", ha->host_no,
				    cp->device->channel, cp->device->id,
				    cp->device->lun, resid,
				    cp->request_bufflen);

				cp->result = DID_ERROR << 16;
				break;
			}

			/* Everybody online, looking good... */
			cp->result = DID_OK << 16;
		}
		break;

	case CS_DATA_OVERRUN:
		DEBUG2(printk(KERN_INFO
		    "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n",
		    ha->host_no, cp->device->id, cp->device->lun, comp_status,
		    scsi_status));
		DEBUG2(printk(KERN_INFO
		    "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
		    cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3],
		    cp->cmnd[4], cp->cmnd[5]));
		DEBUG2(printk(KERN_INFO
		    "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR "
		    "status!\n",
		    cp->serial_number, cp->request_bufflen, resid_len));

		cp->result = DID_ERROR << 16;
		break;

	case CS_PORT_LOGGED_OUT:
	case CS_PORT_CONFIG_CHG:
	case CS_PORT_BUSY:
	case CS_INCOMPLETE:
	case CS_PORT_UNAVAILABLE:
		/*
		 * If the port is in Target Down state, return all IOs for this
		 * Target with DID_NO_CONNECT ELSE Queue the IOs in the
		 * retry_queue.
		 */
		DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down "
		    "pid=%ld, compl status=0x%x, port state=0x%x\n",
		    ha->host_no, cp->device->id, cp->device->lun,
		    cp->serial_number, comp_status,
		    atomic_read(&fcport->state)));

		cp->result = DID_BUS_BUSY << 16;
		if (atomic_read(&fcport->state) == FCS_ONLINE) {
			qla2x00_mark_device_lost(ha, fcport, 1, 1);
		}
		break;

	case CS_RESET:
		DEBUG2(printk(KERN_INFO
		    "scsi(%ld): RESET status detected 0x%x-0x%x.\n",
		    ha->host_no, comp_status, scsi_status));

		cp->result = DID_RESET << 16;
		break;

	case CS_ABORTED:
		/*
		 * hv2.19.12 - DID_ABORT does not retry the request if we
		 * aborted this request then abort otherwise it must be a
		 * reset.
		 */
		DEBUG2(printk(KERN_INFO
		    "scsi(%ld): ABORT status detected 0x%x-0x%x.\n",
		    ha->host_no, comp_status, scsi_status));

		cp->result = DID_RESET << 16;
		break;

	case CS_TIMEOUT:
		cp->result = DID_BUS_BUSY << 16;

		if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
			DEBUG2(printk(KERN_INFO
			    "scsi(%ld:%d:%d:%d): TIMEOUT status detected "
			    "0x%x-0x%x\n", ha->host_no, cp->device->channel,
			    cp->device->id, cp->device->lun, comp_status,
			    scsi_status));
			break;
		}
		DEBUG2(printk(KERN_INFO
		    "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x "
		    "sflags=%x.\n", ha->host_no, cp->device->channel,
		    cp->device->id, cp->device->lun, comp_status, scsi_status,
		    le16_to_cpu(sts->status_flags)));

		/* Check to see if logout occurred. */
		if ((le16_to_cpu(sts->status_flags) & SF_LOGOUT_SENT))
			qla2x00_mark_device_lost(ha, fcport, 1, 1);
		break;

	case CS_QUEUE_FULL:
		DEBUG2(printk(KERN_INFO
		    "scsi(%ld): QUEUE FULL status detected 0x%x-0x%x.\n",
		    ha->host_no, comp_status, scsi_status));

		/* SCSI Mid-Layer handles device queue full */

		cp->result = DID_OK << 16 | lscsi_status;

		break;

	default:
		DEBUG3(printk("scsi(%ld): Error detected (unknown status) "
		    "0x%x-0x%x.\n", ha->host_no, comp_status, scsi_status));
		qla_printk(KERN_INFO, ha,
		    "Unknown status detected 0x%x-0x%x.\n",
		    comp_status, scsi_status);

		cp->result = DID_ERROR << 16;
		break;
	}

	/* Place command on done queue. */
	if (ha->status_srb == NULL)
		qla2x00_sp_compl(ha, sp);
}
Пример #21
0
/**
 * qla2100_fw_dump() - Dumps binary data from the 2100/2200 firmware.
 * @ha: HA context
 * @hardware_locked: Called with the hardware_lock
 */
void
qla2100_fw_dump(scsi_qla_host_t *ha, int hardware_locked)
{
	int		rval;
	uint32_t	cnt, timer;
	uint16_t	risc_address;
	uint16_t	mb0, mb2;
	device_reg_t __iomem *reg = ha->iobase;
	uint16_t __iomem *dmp_reg;
	unsigned long	flags;
	struct qla2100_fw_dump	*fw;

	risc_address = 0;
	mb0 = mb2 = 0;
	flags = 0;

	if (!hardware_locked)
		spin_lock_irqsave(&ha->hardware_lock, flags);

	if (ha->fw_dump != NULL) {
		qla_printk(KERN_WARNING, ha,
		    "Firmware has been previously dumped (%p) -- ignoring "
		    "request...\n", ha->fw_dump);
		goto qla2100_fw_dump_failed;
	}

	/* Allocate (large) dump buffer. */
	ha->fw_dump_order = get_order(sizeof(struct qla2100_fw_dump));
	ha->fw_dump = (struct qla2100_fw_dump *) __get_free_pages(GFP_ATOMIC,
	    ha->fw_dump_order);
	if (ha->fw_dump == NULL) {
		qla_printk(KERN_WARNING, ha,
		    "Unable to allocated memory for firmware dump (%d/%Zd).\n",
		    ha->fw_dump_order, sizeof(struct qla2100_fw_dump));
		goto qla2100_fw_dump_failed;
	}
	fw = ha->fw_dump;

	rval = QLA_SUCCESS;
	fw->hccr = RD_REG_WORD(&reg->hccr);

	/* Pause RISC. */
	WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC); 
	for (cnt = 30000; (RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0 &&
	    rval == QLA_SUCCESS; cnt--) {
		if (cnt)
			udelay(100);
		else
			rval = QLA_FUNCTION_TIMEOUT;
	}
	if (rval == QLA_SUCCESS) {
		dmp_reg = (uint16_t __iomem *)(reg + 0);
		for (cnt = 0; cnt < sizeof(fw->pbiu_reg) / 2; cnt++) 
			fw->pbiu_reg[cnt] = RD_REG_WORD(dmp_reg++);

		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x10);
		for (cnt = 0; cnt < ha->mbx_count; cnt++) {
			if (cnt == 8) {
				dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0xe0);
			}
			fw->mailbox_reg[cnt] = RD_REG_WORD(dmp_reg++);
		}

		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x20);
		for (cnt = 0; cnt < sizeof(fw->dma_reg) / 2; cnt++) 
			fw->dma_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->ctrl_status, 0x00);
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0xA0);
		for (cnt = 0; cnt < sizeof(fw->risc_hdw_reg) / 2; cnt++) 
			fw->risc_hdw_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->pcr, 0x2000); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->risc_gp0_reg) / 2; cnt++) 
			fw->risc_gp0_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->pcr, 0x2100); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->risc_gp1_reg) / 2; cnt++) 
			fw->risc_gp1_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->pcr, 0x2200); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->risc_gp2_reg) / 2; cnt++) 
			fw->risc_gp2_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->pcr, 0x2300); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->risc_gp3_reg) / 2; cnt++) 
			fw->risc_gp3_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->pcr, 0x2400); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->risc_gp4_reg) / 2; cnt++) 
			fw->risc_gp4_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->pcr, 0x2500); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->risc_gp5_reg) / 2; cnt++) 
			fw->risc_gp5_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->pcr, 0x2600); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->risc_gp6_reg) / 2; cnt++) 
			fw->risc_gp6_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->pcr, 0x2700); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->risc_gp7_reg) / 2; cnt++) 
			fw->risc_gp7_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->ctrl_status, 0x10); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->frame_buf_hdw_reg) / 2; cnt++) 
			fw->frame_buf_hdw_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->ctrl_status, 0x20); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->fpm_b0_reg) / 2; cnt++) 
			fw->fpm_b0_reg[cnt] = RD_REG_WORD(dmp_reg++);

		WRT_REG_WORD(&reg->ctrl_status, 0x30); 
		dmp_reg = (uint16_t __iomem *)((uint8_t __iomem *)reg + 0x80);
		for (cnt = 0; cnt < sizeof(fw->fpm_b1_reg) / 2; cnt++) 
			fw->fpm_b1_reg[cnt] = RD_REG_WORD(dmp_reg++);

		/* Reset the ISP. */
		WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
	}

	for (cnt = 30000; RD_MAILBOX_REG(ha, reg, 0) != 0 &&
	    rval == QLA_SUCCESS; cnt--) {
		if (cnt)
			udelay(100);
		else
			rval = QLA_FUNCTION_TIMEOUT;
	}

	/* Pause RISC. */
	if (rval == QLA_SUCCESS && (IS_QLA2200(ha) || (IS_QLA2100(ha) &&
	    (RD_REG_WORD(&reg->mctr) & (BIT_1 | BIT_0)) != 0))) {

		WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC); 
		for (cnt = 30000;
		    (RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0 &&
		    rval == QLA_SUCCESS; cnt--) {
			if (cnt)
				udelay(100);
			else
				rval = QLA_FUNCTION_TIMEOUT;
		}
		if (rval == QLA_SUCCESS) {
			/* Set memory configuration and timing. */
			if (IS_QLA2100(ha))
				WRT_REG_WORD(&reg->mctr, 0xf1);
			else
				WRT_REG_WORD(&reg->mctr, 0xf2);
			RD_REG_WORD(&reg->mctr);	/* PCI Posting. */

			/* Release RISC. */
			WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
		}
	}

	if (rval == QLA_SUCCESS) {
		/* Get RISC SRAM. */
		risc_address = 0x1000;
 		WRT_MAILBOX_REG(ha, reg, 0, MBC_READ_RAM_WORD);
		clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
	}
	for (cnt = 0; cnt < sizeof(fw->risc_ram) / 2 && rval == QLA_SUCCESS;
	    cnt++, risc_address++) {
 		WRT_MAILBOX_REG(ha, reg, 1, risc_address);
		WRT_REG_WORD(&reg->hccr, HCCR_SET_HOST_INT);

		for (timer = 6000000; timer != 0; timer--) {
			/* Check for pending interrupts. */
			if (RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) {
				if (RD_REG_WORD(&reg->semaphore) & BIT_0) {
					set_bit(MBX_INTERRUPT,
					    &ha->mbx_cmd_flags);

					mb0 = RD_MAILBOX_REG(ha, reg, 0);
					mb2 = RD_MAILBOX_REG(ha, reg, 2);

					WRT_REG_WORD(&reg->semaphore, 0);
					WRT_REG_WORD(&reg->hccr,
					    HCCR_CLR_RISC_INT);
					RD_REG_WORD(&reg->hccr);
					break;
				}
				WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
				RD_REG_WORD(&reg->hccr);
			}
			udelay(5);
		}

		if (test_and_clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags)) {
			rval = mb0 & MBS_MASK;
			fw->risc_ram[cnt] = mb2;
		} else {
			rval = QLA_FUNCTION_FAILED;
		}
	}

	if (rval != QLA_SUCCESS) {
		qla_printk(KERN_WARNING, ha,
		    "Failed to dump firmware (%x)!!!\n", rval);

		free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order);
		ha->fw_dump = NULL;
	} else {
		qla_printk(KERN_INFO, ha,
		    "Firmware dump saved to temp buffer (%ld/%p).\n",
		    ha->host_no, ha->fw_dump);
	}

qla2100_fw_dump_failed:
	if (!hardware_locked)
		spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
Пример #22
0
/**
 * qla2100_fw_dump() - Dumps binary data from the 2100/2200 firmware.
 * @ha: HA context
 * @hardware_locked: Called with the hardware_lock
 */
void
qla2100_fw_dump(scsi_qla_host_t *ha, int hardware_locked)
{
	int		rval;
	uint32_t	cnt, timer;
	uint16_t	risc_address;
	uint16_t	mb0, mb2;
	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
	uint16_t __iomem *dmp_reg;
	unsigned long	flags;
	struct qla2100_fw_dump	*fw;

	risc_address = 0;
	mb0 = mb2 = 0;
	flags = 0;

	if (!hardware_locked)
		spin_lock_irqsave(&ha->hardware_lock, flags);

	if (!ha->fw_dump) {
		qla_printk(KERN_WARNING, ha,
		    "No buffer available for dump!!!\n");
		goto qla2100_fw_dump_failed;
	}

	if (ha->fw_dumped) {
		qla_printk(KERN_WARNING, ha,
		    "Firmware has been previously dumped (%p) -- ignoring "
		    "request...\n", ha->fw_dump);
		goto qla2100_fw_dump_failed;
	}
	fw = &ha->fw_dump->isp.isp21;
	qla2xxx_prep_dump(ha, ha->fw_dump);

	rval = QLA_SUCCESS;
	fw->hccr = htons(RD_REG_WORD(&reg->hccr));

	/* Pause RISC. */
	WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
	for (cnt = 30000; (RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0 &&
	    rval == QLA_SUCCESS; cnt--) {
		if (cnt)
			udelay(100);
		else
			rval = QLA_FUNCTION_TIMEOUT;
	}
	if (rval == QLA_SUCCESS) {
		dmp_reg = &reg->flash_address;
		for (cnt = 0; cnt < sizeof(fw->pbiu_reg) / 2; cnt++)
			fw->pbiu_reg[cnt] = htons(RD_REG_WORD(dmp_reg++));

		dmp_reg = &reg->u.isp2100.mailbox0;
		for (cnt = 0; cnt < ha->mbx_count; cnt++) {
			if (cnt == 8)
				dmp_reg = &reg->u_end.isp2200.mailbox8;

			fw->mailbox_reg[cnt] = htons(RD_REG_WORD(dmp_reg++));
		}

		dmp_reg = &reg->u.isp2100.unused_2[0];
		for (cnt = 0; cnt < sizeof(fw->dma_reg) / 2; cnt++)
			fw->dma_reg[cnt] = htons(RD_REG_WORD(dmp_reg++));

		WRT_REG_WORD(&reg->ctrl_status, 0x00);
		dmp_reg = &reg->risc_hw;
		for (cnt = 0; cnt < sizeof(fw->risc_hdw_reg) / 2; cnt++)
			fw->risc_hdw_reg[cnt] = htons(RD_REG_WORD(dmp_reg++));

		WRT_REG_WORD(&reg->pcr, 0x2000);
		qla2xxx_read_window(reg, 16, fw->risc_gp0_reg);

		WRT_REG_WORD(&reg->pcr, 0x2100);
		qla2xxx_read_window(reg, 16, fw->risc_gp1_reg);

		WRT_REG_WORD(&reg->pcr, 0x2200);
		qla2xxx_read_window(reg, 16, fw->risc_gp2_reg);

		WRT_REG_WORD(&reg->pcr, 0x2300);
		qla2xxx_read_window(reg, 16, fw->risc_gp3_reg);

		WRT_REG_WORD(&reg->pcr, 0x2400);
		qla2xxx_read_window(reg, 16, fw->risc_gp4_reg);

		WRT_REG_WORD(&reg->pcr, 0x2500);
		qla2xxx_read_window(reg, 16, fw->risc_gp5_reg);

		WRT_REG_WORD(&reg->pcr, 0x2600);
		qla2xxx_read_window(reg, 16, fw->risc_gp6_reg);

		WRT_REG_WORD(&reg->pcr, 0x2700);
		qla2xxx_read_window(reg, 16, fw->risc_gp7_reg);

		WRT_REG_WORD(&reg->ctrl_status, 0x10);
		qla2xxx_read_window(reg, 16, fw->frame_buf_hdw_reg);

		WRT_REG_WORD(&reg->ctrl_status, 0x20);
		qla2xxx_read_window(reg, 64, fw->fpm_b0_reg);

		WRT_REG_WORD(&reg->ctrl_status, 0x30);
		qla2xxx_read_window(reg, 64, fw->fpm_b1_reg);

		/* Reset the ISP. */
		WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
	}

	for (cnt = 30000; RD_MAILBOX_REG(ha, reg, 0) != 0 &&
	    rval == QLA_SUCCESS; cnt--) {
		if (cnt)
			udelay(100);
		else
			rval = QLA_FUNCTION_TIMEOUT;
	}

	/* Pause RISC. */
	if (rval == QLA_SUCCESS && (IS_QLA2200(ha) || (IS_QLA2100(ha) &&
	    (RD_REG_WORD(&reg->mctr) & (BIT_1 | BIT_0)) != 0))) {

		WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
		for (cnt = 30000;
		    (RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0 &&
		    rval == QLA_SUCCESS; cnt--) {
			if (cnt)
				udelay(100);
			else
				rval = QLA_FUNCTION_TIMEOUT;
		}
		if (rval == QLA_SUCCESS) {
			/* Set memory configuration and timing. */
			if (IS_QLA2100(ha))
				WRT_REG_WORD(&reg->mctr, 0xf1);
			else
				WRT_REG_WORD(&reg->mctr, 0xf2);
			RD_REG_WORD(&reg->mctr);	/* PCI Posting. */

			/* Release RISC. */
			WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
		}
	}

	if (rval == QLA_SUCCESS) {
		/* Get RISC SRAM. */
		risc_address = 0x1000;
 		WRT_MAILBOX_REG(ha, reg, 0, MBC_READ_RAM_WORD);
		clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
	}
	for (cnt = 0; cnt < sizeof(fw->risc_ram) / 2 && rval == QLA_SUCCESS;
	    cnt++, risc_address++) {
 		WRT_MAILBOX_REG(ha, reg, 1, risc_address);
		WRT_REG_WORD(&reg->hccr, HCCR_SET_HOST_INT);

		for (timer = 6000000; timer != 0; timer--) {
			/* Check for pending interrupts. */
			if (RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) {
				if (RD_REG_WORD(&reg->semaphore) & BIT_0) {
					set_bit(MBX_INTERRUPT,
					    &ha->mbx_cmd_flags);

					mb0 = RD_MAILBOX_REG(ha, reg, 0);
					mb2 = RD_MAILBOX_REG(ha, reg, 2);

					WRT_REG_WORD(&reg->semaphore, 0);
					WRT_REG_WORD(&reg->hccr,
					    HCCR_CLR_RISC_INT);
					RD_REG_WORD(&reg->hccr);
					break;
				}
				WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
				RD_REG_WORD(&reg->hccr);
			}
			udelay(5);
		}

		if (test_and_clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags)) {
			rval = mb0 & MBS_MASK;
			fw->risc_ram[cnt] = htons(mb2);
		} else {
			rval = QLA_FUNCTION_FAILED;
		}
	}

	if (rval == QLA_SUCCESS)
		qla2xxx_copy_queues(ha, &fw->risc_ram[cnt]);

	if (rval != QLA_SUCCESS) {
		qla_printk(KERN_WARNING, ha,
		    "Failed to dump firmware (%x)!!!\n", rval);
		ha->fw_dumped = 0;

	} else {
		qla_printk(KERN_INFO, ha,
		    "Firmware dump saved to temp buffer (%ld/%p).\n",
		    ha->host_no, ha->fw_dump);
		ha->fw_dumped = 1;
	}

qla2100_fw_dump_failed:
	if (!hardware_locked)
		spin_unlock_irqrestore(&ha->hardware_lock, flags);
}