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044cc6c8ec
Chip is similar in form to our ISP24xx offering. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
1538 lines
41 KiB
C
1538 lines
41 KiB
C
/*
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* QLogic Fibre Channel HBA Driver
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* Copyright (c) 2003-2005 QLogic Corporation
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*
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* See LICENSE.qla2xxx for copyright and licensing details.
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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 *, uint16_t *);
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static void qla2x00_process_completed_request(struct scsi_qla_host *, uint32_t);
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static void qla2x00_status_entry(scsi_qla_host_t *, void *);
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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 void qla24xx_ms_entry(scsi_qla_host_t *, struct ct_entry_24xx *);
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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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struct device_reg_2xxx __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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uint16_t mb[4];
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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->isp;
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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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mb[0] = RD_MAILBOX_REG(ha, reg, 0);
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if (mb[0] > 0x3fff && mb[0] < 0x8000) {
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qla2x00_mbx_completion(ha, mb[0]);
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status |= MBX_INTERRUPT;
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} else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
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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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qla2x00_async_event(ha, mb);
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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, mb[0]));
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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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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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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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struct device_reg_2xxx __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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uint16_t hccr;
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uint16_t mb[4];
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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->isp;
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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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switch (stat & 0xff) {
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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, MSW(stat));
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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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mb[0] = MSW(stat);
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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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qla2x00_async_event(ha, mb);
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break;
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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 0x15:
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mb[0] = MBA_CMPLT_1_16BIT;
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mb[1] = MSW(stat);
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qla2x00_async_event(ha, mb);
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break;
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case 0x16:
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mb[0] = MBA_SCSI_COMPLETION;
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mb[1] = MSW(stat);
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mb[2] = RD_MAILBOX_REG(ha, reg, 2);
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qla2x00_async_event(ha, mb);
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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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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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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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struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
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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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* @mb: Mailbox registers (0 - 3)
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*/
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static void
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qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
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{
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#define LS_UNKNOWN 2
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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 handle_cnt;
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uint16_t cnt;
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uint32_t handles[5];
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struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
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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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switch (mb[0]) {
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case MBA_SCSI_COMPLETION:
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handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
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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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handles[0] = mb[1];
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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] = mb[1];
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handles[1] = mb[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] = mb[1];
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handles[1] = mb[2];
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handles[2] = mb[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] = mb[1];
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handles[1] = mb[2];
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handles[2] = mb[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] = mb[1];
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handles[1] = mb[2];
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handles[2] = mb[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((uint32_t)((mb[2] << 16) | mb[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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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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ha->isp_ops.fw_dump(ha, 1);
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if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
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if (mb[1] == 0 && mb[2] == 0) {
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qla_printk(KERN_ERR, ha,
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"Unrecoverable Hardware Error: adapter "
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"marked OFFLINE!\n");
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ha->flags.online = 0;
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} else
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set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
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} else if (mb[1] == 0) {
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qla_printk(KERN_INFO, ha,
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"Unrecoverable Hardware Error: adapter marked "
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"OFFLINE!\n");
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ha->flags.online = 0;
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} else
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set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
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break;
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case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
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DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n",
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ha->host_no));
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qla_printk(KERN_WARNING, ha, "ISP Request Transfer Error.\n");
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set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
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break;
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case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
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DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
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ha->host_no));
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qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n");
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set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
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break;
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case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
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DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
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ha->host_no));
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break;
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case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
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DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha->host_no,
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mb[1]));
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qla_printk(KERN_INFO, ha, "LIP occured (%x).\n", mb[1]);
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if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
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atomic_set(&ha->loop_state, LOOP_DOWN);
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atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
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qla2x00_mark_all_devices_lost(ha, 1);
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}
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set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
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ha->flags.management_server_logged_in = 0;
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/* Update AEN queue. */
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qla2x00_enqueue_aen(ha, MBA_LIP_OCCURRED, NULL);
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break;
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case MBA_LOOP_UP: /* Loop Up Event */
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if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
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link_speed = link_speeds[0];
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ha->link_data_rate = LDR_1GB;
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} else {
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link_speed = link_speeds[LS_UNKNOWN];
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if (mb[1] < 5)
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link_speed = link_speeds[mb[1]];
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ha->link_data_rate = mb[1];
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}
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DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n",
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ha->host_no, link_speed));
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qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n",
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link_speed);
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ha->flags.management_server_logged_in = 0;
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/* Update AEN queue. */
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qla2x00_enqueue_aen(ha, MBA_LOOP_UP, NULL);
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break;
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case MBA_LOOP_DOWN: /* Loop Down Event */
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DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN (%x).\n",
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ha->host_no, mb[1]));
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qla_printk(KERN_INFO, ha, "LOOP DOWN detected (%x).\n", mb[1]);
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if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
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atomic_set(&ha->loop_state, LOOP_DOWN);
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atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
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ha->device_flags |= DFLG_NO_CABLE;
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qla2x00_mark_all_devices_lost(ha, 1);
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}
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ha->flags.management_server_logged_in = 0;
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ha->link_data_rate = LDR_UNKNOWN;
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if (ql2xfdmienable)
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set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags);
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/* Update AEN queue. */
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qla2x00_enqueue_aen(ha, MBA_LOOP_DOWN, NULL);
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break;
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case MBA_LIP_RESET: /* LIP reset occurred */
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DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
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ha->host_no, mb[1]));
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qla_printk(KERN_INFO, ha,
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"LIP reset occured (%x).\n", mb[1]);
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|
|
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;
|
|
|
|
/* Update AEN queue. */
|
|
qla2x00_enqueue_aen(ha, MBA_LIP_RESET, NULL);
|
|
|
|
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 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 (ql2xprocessrscn &&
|
|
!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA6312(ha) &&
|
|
!IS_QLA6322(ha) && !IS_QLA24XX(ha) && !IS_QLA54XX(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/%x.\n",
|
|
ha->host_no, rscn_fcport, mb[1], mb[2],
|
|
mb[3]));
|
|
|
|
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 %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);
|
|
|
|
/* Update AEN queue. */
|
|
qla2x00_enqueue_aen(ha, MBA_PORT_UPDATE, NULL);
|
|
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);
|
|
|
|
/* 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));
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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;
|
|
|
|
CMD_COMPL_STATUS(sp->cmd) = 0L;
|
|
CMD_SCSI_STATUS(sp->cmd) = 0L;
|
|
|
|
/* Save ISP completion status */
|
|
sp->cmd->result = DID_OK << 16;
|
|
qla2x00_sp_compl(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)
|
|
{
|
|
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
|
|
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, 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;
|
|
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 sp->state:%d\n",
|
|
ha->host_no, sts->handle, sp, sp->state));
|
|
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 = 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);
|
|
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;
|
|
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.\n", ha->host_no, cp->device->id,
|
|
cp->device->lun, comp_status, scsi_status));
|
|
|
|
}
|
|
|
|
/*
|
|
* 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);
|
|
}
|
|
|
|
/**
|
|
* 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. */
|
|
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);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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;
|
|
|
|
/* 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;
|
|
}
|
|
qla2x00_sp_compl(ha, sp);
|
|
|
|
} else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type ==
|
|
COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7) {
|
|
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);
|
|
qla2xxx_wake_dpc(ha);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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;
|
|
|
|
qla2x00_sp_compl(ha, sp);
|
|
}
|
|
|
|
|
|
/**
|
|
* qla24xx_mbx_completion() - Process mailbox command completions.
|
|
* @ha: SCSI driver HA context
|
|
* @mb0: Mailbox0 register
|
|
*/
|
|
static void
|
|
qla24xx_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0)
|
|
{
|
|
uint16_t cnt;
|
|
uint16_t __iomem *wptr;
|
|
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
|
|
|
|
/* Load return mailbox registers. */
|
|
ha->flags.mbox_int = 1;
|
|
ha->mailbox_out[0] = mb0;
|
|
wptr = (uint16_t __iomem *)®->mailbox1;
|
|
|
|
for (cnt = 1; cnt < ha->mbx_count; cnt++) {
|
|
ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
|
|
wptr++;
|
|
}
|
|
|
|
if (ha->mcp) {
|
|
DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
|
|
__func__, ha->host_no, ha->mcp->mb[0]));
|
|
} else {
|
|
DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
|
|
__func__, ha->host_no));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* qla24xx_process_response_queue() - Process response queue entries.
|
|
* @ha: SCSI driver HA context
|
|
*/
|
|
void
|
|
qla24xx_process_response_queue(struct scsi_qla_host *ha)
|
|
{
|
|
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
|
|
struct sts_entry_24xx *pkt;
|
|
|
|
if (!ha->flags.online)
|
|
return;
|
|
|
|
while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) {
|
|
pkt = (struct sts_entry_24xx *)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, (sts_entry_t *) pkt);
|
|
((response_t *)pkt)->signature = RESPONSE_PROCESSED;
|
|
wmb();
|
|
continue;
|
|
}
|
|
|
|
switch (pkt->entry_type) {
|
|
case STATUS_TYPE:
|
|
qla2x00_status_entry(ha, pkt);
|
|
break;
|
|
case STATUS_CONT_TYPE:
|
|
qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt);
|
|
break;
|
|
case MS_IOCB_TYPE:
|
|
qla24xx_ms_entry(ha, (struct ct_entry_24xx *)pkt);
|
|
break;
|
|
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_DWORD(®->rsp_q_out, ha->rsp_ring_index);
|
|
}
|
|
|
|
/**
|
|
* 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(®->host_status);
|
|
if (stat & HSRX_RISC_PAUSED) {
|
|
hccr = RD_REG_DWORD(®->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(®->mailbox1);
|
|
mb[2] = RD_REG_WORD(®->mailbox2);
|
|
mb[3] = RD_REG_WORD(®->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(®->hccr, HCCRX_CLR_RISC_INT);
|
|
RD_REG_DWORD_RELAXED(®->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;
|
|
}
|
|
|
|
/**
|
|
* 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);
|
|
}
|
|
|