Ejemplo n.º 1
0
/**
 * qla2x00_process_response_queue() - Process response queue entries.
 * @ha: SCSI driver HA context
 */
void
qla2x00_process_response_queue(struct scsi_qla_host *ha)
{
	device_reg_t	*reg = ha->iobase;
	sts_entry_t	*pkt;
	uint16_t        handle_cnt;
	uint16_t        cnt;

	if (!ha->flags.online)
		return;

	while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) {
		pkt = (sts_entry_t *)ha->response_ring_ptr;

		ha->rsp_ring_index++;
		if (ha->rsp_ring_index == ha->response_q_length) {
			ha->rsp_ring_index = 0;
			ha->response_ring_ptr = ha->response_ring;
		} else {
			ha->response_ring_ptr++;
		}

		if (pkt->entry_status != 0) {
			DEBUG3(printk(KERN_INFO
			    "scsi(%ld): Process error entry.\n", ha->host_no));

			qla2x00_error_entry(ha, pkt);
			((response_t *)pkt)->signature = RESPONSE_PROCESSED;
			wmb();
			continue;
		}

		switch (pkt->entry_type) {
		case STATUS_TYPE:
			qla2x00_status_entry(ha, pkt);
			break;
		case STATUS_TYPE_21:
			handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
			for (cnt = 0; cnt < handle_cnt; cnt++) {
				qla2x00_process_completed_request(ha,
				    ((sts21_entry_t *)pkt)->handle[cnt]);
			}
			break;
		case STATUS_TYPE_22:
			handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
			for (cnt = 0; cnt < handle_cnt; cnt++) {
				qla2x00_process_completed_request(ha,
				    ((sts22_entry_t *)pkt)->handle[cnt]);
			}
			break;
		case STATUS_CONT_TYPE:
			qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt);
			break;
		case MS_IOCB_TYPE:
			qla2x00_ms_entry(ha, (ms_iocb_entry_t *)pkt);
			break;
		case MBX_IOCB_TYPE:
			if (!IS_QLA2100(ha) && !IS_QLA2200(ha) &&
			    !IS_QLA6312(ha) && !IS_QLA6322(ha)) {
				if (pkt->sys_define == SOURCE_ASYNC_IOCB) {
					qla2x00_process_iodesc(ha,
					    (struct mbx_entry *)pkt);
				} else {
					/* MBX IOCB Type Not Supported. */
					DEBUG4(printk(KERN_WARNING
					    "scsi(%ld): Received unknown MBX "
					    "IOCB response pkt type=%x "
					    "source=%x entry status=%x.\n",
					    ha->host_no, pkt->entry_type,
					    pkt->sys_define,
					    pkt->entry_status));
				}
				break;
			}
			/* Fallthrough. */
		default:
			/* Type Not Supported. */
			DEBUG4(printk(KERN_WARNING
			    "scsi(%ld): Received unknown response pkt type %x "
			    "entry status=%x.\n",
			    ha->host_no, pkt->entry_type, pkt->entry_status));
			break;
		}
		((response_t *)pkt)->signature = RESPONSE_PROCESSED;
		wmb();
	}

	/* Adjust ring index */
	WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), ha->rsp_ring_index);
}
Ejemplo n.º 2
0
/**
 * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
 * @ha: HA context
 *
 * Returns 0 on success.
 */
int
qla2300_pci_config(scsi_qla_host_t *vha)
{
	uint16_t	w;
	unsigned long   flags = 0;
	uint32_t	cnt;
	struct qla_hw_data *ha = vha->hw;
	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;

	pci_set_master(ha->pdev);
	pci_try_set_mwi(ha->pdev);

	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);

	if (IS_QLA2322(ha) || IS_QLA6322(ha))
		w &= ~PCI_COMMAND_INTX_DISABLE;
	pci_write_config_word(ha->pdev, PCI_COMMAND, w);

	/*
	 * If this is a 2300 card and not 2312, reset the
	 * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
	 * the 2310 also reports itself as a 2300 so we need to get the
	 * fb revision level -- a 6 indicates it really is a 2300 and
	 * not a 2310.
	 */
	if (IS_QLA2300(ha)) {
		spin_lock_irqsave(&ha->hardware_lock, flags);

		/* Pause RISC. */
		WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
		for (cnt = 0; cnt < 30000; cnt++) {
			if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
				break;

			udelay(10);
		}

		/* Select FPM registers. */
		WRT_REG_WORD(&reg->ctrl_status, 0x20);
		RD_REG_WORD(&reg->ctrl_status);

		/* Get the fb rev level */
		ha->fb_rev = RD_FB_CMD_REG(ha, reg);

		if (ha->fb_rev == FPM_2300)
			pci_clear_mwi(ha->pdev);

		/* Deselect FPM registers. */
		WRT_REG_WORD(&reg->ctrl_status, 0x0);
		RD_REG_WORD(&reg->ctrl_status);

		/* Release RISC module. */
		WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
		for (cnt = 0; cnt < 30000; cnt++) {
			if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
				break;

			udelay(10);
		}

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

	pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);

	pci_disable_rom(ha->pdev);

	/* Get PCI bus information. */
	spin_lock_irqsave(&ha->hardware_lock, flags);
	ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
	spin_unlock_irqrestore(&ha->hardware_lock, flags);

	return QLA_SUCCESS;
}
Ejemplo n.º 3
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;
	}
}