1465 lines
38 KiB
C
1465 lines
38 KiB
C
![]() |
/*
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* QLOGIC LINUX SOFTWARE
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*
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* QLogic ISP2x00 device driver for Linux 2.6.x
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* Copyright (C) 2003-2004 QLogic Corporation
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* (www.qlogic.com)
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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*/
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#include "qla_def.h"
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static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
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static void qla2x00_async_event(scsi_qla_host_t *, uint32_t);
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static void qla2x00_process_completed_request(struct scsi_qla_host *, uint32_t);
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void qla2x00_process_response_queue(struct scsi_qla_host *);
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static void qla2x00_status_entry(scsi_qla_host_t *, sts_entry_t *);
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static void qla2x00_status_cont_entry(scsi_qla_host_t *, sts_cont_entry_t *);
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static void qla2x00_error_entry(scsi_qla_host_t *, sts_entry_t *);
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static void qla2x00_ms_entry(scsi_qla_host_t *, ms_iocb_entry_t *);
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static int qla2x00_check_sense(struct scsi_cmnd *cp, os_lun_t *);
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/**
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* qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
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* @irq:
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* @dev_id: SCSI driver HA context
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* @regs:
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*
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* Called by system whenever the host adapter generates an interrupt.
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*
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* Returns handled flag.
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*/
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irqreturn_t
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qla2100_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
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{
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scsi_qla_host_t *ha;
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device_reg_t __iomem *reg;
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int status;
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unsigned long flags;
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unsigned long iter;
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uint32_t mbx;
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ha = (scsi_qla_host_t *) dev_id;
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if (!ha) {
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printk(KERN_INFO
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"%s(): NULL host pointer\n", __func__);
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return (IRQ_NONE);
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}
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reg = ha->iobase;
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status = 0;
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spin_lock_irqsave(&ha->hardware_lock, flags);
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for (iter = 50; iter--; ) {
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if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0)
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break;
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if (RD_REG_WORD(®->semaphore) & BIT_0) {
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WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
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RD_REG_WORD(®->hccr);
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/* Get mailbox data. */
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mbx = RD_MAILBOX_REG(ha, reg, 0);
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if (mbx > 0x3fff && mbx < 0x8000) {
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qla2x00_mbx_completion(ha, (uint16_t)mbx);
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status |= MBX_INTERRUPT;
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} else if (mbx > 0x7fff && mbx < 0xc000) {
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qla2x00_async_event(ha, mbx);
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} else {
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/*EMPTY*/
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DEBUG2(printk("scsi(%ld): Unrecognized "
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"interrupt type (%d)\n",
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ha->host_no, mbx));
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}
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/* Release mailbox registers. */
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WRT_REG_WORD(®->semaphore, 0);
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RD_REG_WORD(®->semaphore);
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} else {
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qla2x00_process_response_queue(ha);
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WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
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RD_REG_WORD(®->hccr);
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}
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}
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spin_unlock_irqrestore(&ha->hardware_lock, flags);
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qla2x00_next(ha);
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ha->last_irq_cpu = _smp_processor_id();
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ha->total_isr_cnt++;
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if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
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(status & MBX_INTERRUPT) && ha->flags.mbox_int) {
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spin_lock_irqsave(&ha->mbx_reg_lock, flags);
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set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
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up(&ha->mbx_intr_sem);
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spin_unlock_irqrestore(&ha->mbx_reg_lock, flags);
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}
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if (!list_empty(&ha->done_queue))
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qla2x00_done(ha);
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return (IRQ_HANDLED);
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}
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/**
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* qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
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* @irq:
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* @dev_id: SCSI driver HA context
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* @regs:
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*
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* Called by system whenever the host adapter generates an interrupt.
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*
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* Returns handled flag.
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*/
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irqreturn_t
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qla2300_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
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{
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scsi_qla_host_t *ha;
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device_reg_t __iomem *reg;
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int status;
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unsigned long flags;
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unsigned long iter;
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uint32_t stat;
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uint32_t mbx;
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uint16_t hccr;
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ha = (scsi_qla_host_t *) dev_id;
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if (!ha) {
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printk(KERN_INFO
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"%s(): NULL host pointer\n", __func__);
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return (IRQ_NONE);
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}
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reg = ha->iobase;
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status = 0;
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spin_lock_irqsave(&ha->hardware_lock, flags);
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for (iter = 50; iter--; ) {
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stat = RD_REG_DWORD(®->u.isp2300.host_status);
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if (stat & HSR_RISC_PAUSED) {
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hccr = RD_REG_WORD(®->hccr);
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if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
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qla_printk(KERN_INFO, ha,
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"Parity error -- HCCR=%x.\n", hccr);
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else
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qla_printk(KERN_INFO, ha,
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"RISC paused -- HCCR=%x\n", hccr);
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/*
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* Issue a "HARD" reset in order for the RISC
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* interrupt bit to be cleared. Schedule a big
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* hammmer to get out of the RISC PAUSED state.
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*/
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WRT_REG_WORD(®->hccr, HCCR_RESET_RISC);
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RD_REG_WORD(®->hccr);
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set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
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break;
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} else if ((stat & HSR_RISC_INT) == 0)
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break;
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mbx = MSW(stat);
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switch (stat & 0xff) {
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case 0x13:
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qla2x00_process_response_queue(ha);
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break;
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case 0x1:
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case 0x2:
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case 0x10:
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case 0x11:
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qla2x00_mbx_completion(ha, (uint16_t)mbx);
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status |= MBX_INTERRUPT;
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/* Release mailbox registers. */
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WRT_REG_WORD(®->semaphore, 0);
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break;
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case 0x12:
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qla2x00_async_event(ha, mbx);
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break;
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case 0x15:
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mbx = mbx << 16 | MBA_CMPLT_1_16BIT;
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qla2x00_async_event(ha, mbx);
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break;
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case 0x16:
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mbx = mbx << 16 | MBA_SCSI_COMPLETION;
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qla2x00_async_event(ha, mbx);
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break;
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default:
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DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
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"(%d)\n",
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ha->host_no, stat & 0xff));
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break;
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}
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WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
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RD_REG_WORD_RELAXED(®->hccr);
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}
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spin_unlock_irqrestore(&ha->hardware_lock, flags);
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qla2x00_next(ha);
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ha->last_irq_cpu = _smp_processor_id();
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ha->total_isr_cnt++;
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if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
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(status & MBX_INTERRUPT) && ha->flags.mbox_int) {
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spin_lock_irqsave(&ha->mbx_reg_lock, flags);
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set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
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up(&ha->mbx_intr_sem);
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spin_unlock_irqrestore(&ha->mbx_reg_lock, flags);
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}
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if (!list_empty(&ha->done_queue))
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qla2x00_done(ha);
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return (IRQ_HANDLED);
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}
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/**
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* qla2x00_mbx_completion() - Process mailbox command completions.
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* @ha: SCSI driver HA context
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* @mb0: Mailbox0 register
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*/
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static void
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qla2x00_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0)
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{
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uint16_t cnt;
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uint16_t __iomem *wptr;
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device_reg_t __iomem *reg = ha->iobase;
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/* Load return mailbox registers. */
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ha->flags.mbox_int = 1;
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ha->mailbox_out[0] = mb0;
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wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
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for (cnt = 1; cnt < ha->mbx_count; cnt++) {
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if (IS_QLA2200(ha) && cnt == 8)
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wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
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if (cnt == 4 || cnt == 5)
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ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
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else
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ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
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wptr++;
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}
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if (ha->mcp) {
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DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
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__func__, ha->host_no, ha->mcp->mb[0]));
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} else {
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DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
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__func__, ha->host_no));
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}
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}
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/**
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* qla2x00_async_event() - Process aynchronous events.
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* @ha: SCSI driver HA context
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* @mb0: Mailbox0 register
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*/
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static void
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qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx)
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{
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static char *link_speeds[5] = { "1", "2", "4", "?", "10" };
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char *link_speed;
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uint16_t mb[4];
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uint16_t handle_cnt;
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uint16_t cnt;
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uint32_t handles[5];
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device_reg_t __iomem *reg = ha->iobase;
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uint32_t rscn_entry, host_pid;
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uint8_t rscn_queue_index;
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/* Setup to process RIO completion. */
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handle_cnt = 0;
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mb[0] = LSW(mbx);
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switch (mb[0]) {
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case MBA_SCSI_COMPLETION:
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if (IS_QLA2100(ha) || IS_QLA2200(ha))
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handles[0] = le32_to_cpu(
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((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) |
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RD_MAILBOX_REG(ha, reg, 1));
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else
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handles[0] = le32_to_cpu(
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((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) |
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MSW(mbx));
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handle_cnt = 1;
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break;
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case MBA_CMPLT_1_16BIT:
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if (IS_QLA2100(ha) || IS_QLA2200(ha))
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handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
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else
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handles[0] = MSW(mbx);
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handle_cnt = 1;
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mb[0] = MBA_SCSI_COMPLETION;
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break;
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case MBA_CMPLT_2_16BIT:
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handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
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handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
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handle_cnt = 2;
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mb[0] = MBA_SCSI_COMPLETION;
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break;
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case MBA_CMPLT_3_16BIT:
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handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
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handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
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handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3);
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handle_cnt = 3;
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mb[0] = MBA_SCSI_COMPLETION;
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break;
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case MBA_CMPLT_4_16BIT:
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handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
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handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
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handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3);
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handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
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handle_cnt = 4;
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mb[0] = MBA_SCSI_COMPLETION;
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break;
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case MBA_CMPLT_5_16BIT:
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handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
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handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
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handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3);
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handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
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handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
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handle_cnt = 5;
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mb[0] = MBA_SCSI_COMPLETION;
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break;
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case MBA_CMPLT_2_32BIT:
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handles[0] = le32_to_cpu(
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((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) |
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RD_MAILBOX_REG(ha, reg, 1));
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handles[1] = le32_to_cpu(
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((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
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RD_MAILBOX_REG(ha, reg, 6));
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handle_cnt = 2;
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mb[0] = MBA_SCSI_COMPLETION;
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break;
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default:
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break;
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}
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switch (mb[0]) {
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case MBA_SCSI_COMPLETION: /* Fast Post */
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if (!ha->flags.online)
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break;
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for (cnt = 0; cnt < handle_cnt; cnt++)
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qla2x00_process_completed_request(ha, handles[cnt]);
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break;
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|
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case MBA_RESET: /* Reset */
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DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha->host_no));
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set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
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break;
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case MBA_SYSTEM_ERR: /* System Error */
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mb[1] = RD_MAILBOX_REG(ha, reg, 1);
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mb[2] = RD_MAILBOX_REG(ha, reg, 2);
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mb[3] = RD_MAILBOX_REG(ha, reg, 3);
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qla_printk(KERN_INFO, ha,
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"ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n",
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mb[1], mb[2], mb[3]);
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|
||
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if (IS_QLA2100(ha) || IS_QLA2200(ha))
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qla2100_fw_dump(ha, 1);
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else
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qla2300_fw_dump(ha, 1);
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|
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if (mb[1] == 0) {
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qla_printk(KERN_INFO, ha,
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||
|
"Unrecoverable Hardware Error: adapter marked "
|
||
|
"OFFLINE!\n");
|
||
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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 */
|
||
|
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 %x/%x.\n",
|
||
|
ha->host_no, rscn_fcport, mb[1], mb[2]));
|
||
|
|
||
|
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.
|
||
|
*/
|
||
|
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.\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);
|
||
|
|
||
|
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;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* 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] = NULL;
|
||
|
|
||
|
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);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* 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 __iomem *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);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* 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;
|
||
|
int32_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] = 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);
|
||
|
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 | SRB_TAPE)) &&
|
||
|
(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 (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
|
||
|
resid = le32_to_cpu(pkt->residual_length);
|
||
|
cp->resid = resid;
|
||
|
CMD_RESID_LEN(cp) = resid;
|
||
|
}
|
||
|
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);
|
||
|
|
||
|
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 | SRB_TAPE)) &&
|
||
|
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);
|
||
|
if (scsi_status & SS_RESIDUAL_UNDER) {
|
||
|
cp->resid = resid;
|
||
|
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);
|
||
|
|
||
|
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 | SRB_TAPE)) &&
|
||
|
(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 */
|
||
|
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 | SRB_TAPE)) ||
|
||
|
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 | SRB_TAPE)) {
|
||
|
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 "
|
||
|
"sflags=%x.\n", ha->host_no, b, t, l, comp_status,
|
||
|
scsi_status, le16_to_cpu(pkt->status_flags)));
|
||
|
|
||
|
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);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* 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 sp->state:%d\n", __func__, sp, sp->state));
|
||
|
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. */
|
||
|
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) {
|
||
|
add_to_done_queue(ha, sp);
|
||
|
ha->status_srb = NULL;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* 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] = NULL;
|
||
|
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);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* 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] = NULL;
|
||
|
|
||
|
add_to_done_queue(ha, sp);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* qla2x00_check_sense() - Perform any sense data interrogation.
|
||
|
* @cp: SCSI Command
|
||
|
* @lq: Lun queue
|
||
|
*
|
||
|
* Returns QLA_SUCCESS if the lun queue is suspended, else
|
||
|
* QLA_FUNCTION_FAILED (lun queue not suspended).
|
||
|
*/
|
||
|
static int
|
||
|
qla2x00_check_sense(struct scsi_cmnd *cp, os_lun_t *lq)
|
||
|
{
|
||
|
scsi_qla_host_t *ha;
|
||
|
srb_t *sp;
|
||
|
fc_port_t *fcport;
|
||
|
|
||
|
ha = (scsi_qla_host_t *) cp->device->host->hostdata;
|
||
|
if ((cp->sense_buffer[0] & 0x70) != 0x70) {
|
||
|
return (QLA_FUNCTION_FAILED);
|
||
|
}
|
||
|
|
||
|
sp = (srb_t * )CMD_SP(cp);
|
||
|
sp->flags |= SRB_GOT_SENSE;
|
||
|
|
||
|
switch (cp->sense_buffer[2] & 0xf) {
|
||
|
case RECOVERED_ERROR:
|
||
|
cp->result = DID_OK << 16;
|
||
|
cp->sense_buffer[0] = 0;
|
||
|
break;
|
||
|
|
||
|
case NOT_READY:
|
||
|
fcport = lq->fclun->fcport;
|
||
|
|
||
|
/*
|
||
|
* Suspend the lun only for hard disk device type.
|
||
|
*/
|
||
|
if ((fcport->flags & FCF_TAPE_PRESENT) == 0 &&
|
||
|
lq->q_state != LUN_STATE_TIMEOUT) {
|
||
|
/*
|
||
|
* If target is in process of being ready then suspend
|
||
|
* lun for 6 secs and retry all the commands.
|
||
|
*/
|
||
|
if (cp->sense_buffer[12] == 0x4 &&
|
||
|
cp->sense_buffer[13] == 0x1) {
|
||
|
|
||
|
/* Suspend the lun for 6 secs */
|
||
|
qla2x00_suspend_lun(ha, lq, 6,
|
||
|
ql2xsuspendcount);
|
||
|
|
||
|
return (QLA_SUCCESS);
|
||
|
}
|
||
|
}
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
return (QLA_FUNCTION_FAILED);
|
||
|
}
|