Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
new file mode 100644
index 0000000..603d4c6
--- /dev/null
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -0,0 +1,1464 @@
+/*
+ * QLOGIC LINUX SOFTWARE
+ *
+ * QLogic ISP2x00 device driver for Linux 2.6.x
+ * Copyright (C) 2003-2004 QLogic Corporation
+ * (www.qlogic.com)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ */
+#include "qla_def.h"
+
+static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
+static void qla2x00_async_event(scsi_qla_host_t *, uint32_t);
+static void qla2x00_process_completed_request(struct scsi_qla_host *, uint32_t);
+void qla2x00_process_response_queue(struct scsi_qla_host *);
+static void qla2x00_status_entry(scsi_qla_host_t *, sts_entry_t *);
+static void qla2x00_status_cont_entry(scsi_qla_host_t *, sts_cont_entry_t *);
+static void qla2x00_error_entry(scsi_qla_host_t *, sts_entry_t *);
+static void qla2x00_ms_entry(scsi_qla_host_t *, ms_iocb_entry_t *);
+
+static int qla2x00_check_sense(struct scsi_cmnd *cp, os_lun_t *);
+
+/**
+ * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
+ * @irq:
+ * @dev_id: SCSI driver HA context
+ * @regs:
+ *
+ * Called by system whenever the host adapter generates an interrupt.
+ *
+ * Returns handled flag.
+ */
+irqreturn_t
+qla2100_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
+{
+ scsi_qla_host_t *ha;
+ device_reg_t __iomem *reg;
+ int status;
+ unsigned long flags;
+ unsigned long iter;
+ uint32_t mbx;
+
+ ha = (scsi_qla_host_t *) dev_id;
+ if (!ha) {
+ printk(KERN_INFO
+ "%s(): NULL host pointer\n", __func__);
+ return (IRQ_NONE);
+ }
+
+ reg = ha->iobase;
+ status = 0;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ for (iter = 50; iter--; ) {
+ if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0)
+ break;
+
+ if (RD_REG_WORD(®->semaphore) & BIT_0) {
+ WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
+ RD_REG_WORD(®->hccr);
+
+ /* Get mailbox data. */
+ mbx = RD_MAILBOX_REG(ha, reg, 0);
+ if (mbx > 0x3fff && mbx < 0x8000) {
+ qla2x00_mbx_completion(ha, (uint16_t)mbx);
+ status |= MBX_INTERRUPT;
+ } else if (mbx > 0x7fff && mbx < 0xc000) {
+ qla2x00_async_event(ha, mbx);
+ } else {
+ /*EMPTY*/
+ DEBUG2(printk("scsi(%ld): Unrecognized "
+ "interrupt type (%d)\n",
+ ha->host_no, mbx));
+ }
+ /* Release mailbox registers. */
+ WRT_REG_WORD(®->semaphore, 0);
+ RD_REG_WORD(®->semaphore);
+ } else {
+ qla2x00_process_response_queue(ha);
+
+ WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
+ RD_REG_WORD(®->hccr);
+ }
+ }
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ qla2x00_next(ha);
+ ha->last_irq_cpu = _smp_processor_id();
+ ha->total_isr_cnt++;
+
+ if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
+ (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
+ 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);
+ }
+
+ if (!list_empty(&ha->done_queue))
+ qla2x00_done(ha);
+
+ return (IRQ_HANDLED);
+}
+
+/**
+ * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
+ * @irq:
+ * @dev_id: SCSI driver HA context
+ * @regs:
+ *
+ * Called by system whenever the host adapter generates an interrupt.
+ *
+ * Returns handled flag.
+ */
+irqreturn_t
+qla2300_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
+{
+ scsi_qla_host_t *ha;
+ device_reg_t __iomem *reg;
+ int status;
+ unsigned long flags;
+ unsigned long iter;
+ uint32_t stat;
+ uint32_t mbx;
+ uint16_t hccr;
+
+ ha = (scsi_qla_host_t *) dev_id;
+ if (!ha) {
+ printk(KERN_INFO
+ "%s(): NULL host pointer\n", __func__);
+ return (IRQ_NONE);
+ }
+
+ reg = ha->iobase;
+ status = 0;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ for (iter = 50; iter--; ) {
+ stat = RD_REG_DWORD(®->u.isp2300.host_status);
+ if (stat & HSR_RISC_PAUSED) {
+ hccr = RD_REG_WORD(®->hccr);
+ if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
+ qla_printk(KERN_INFO, ha,
+ "Parity error -- HCCR=%x.\n", hccr);
+ else
+ qla_printk(KERN_INFO, ha,
+ "RISC paused -- HCCR=%x\n", hccr);
+
+ /*
+ * Issue a "HARD" reset in order for the RISC
+ * interrupt bit to be cleared. Schedule a big
+ * hammmer to get out of the RISC PAUSED state.
+ */
+ WRT_REG_WORD(®->hccr, HCCR_RESET_RISC);
+ RD_REG_WORD(®->hccr);
+ set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+ break;
+ } else if ((stat & HSR_RISC_INT) == 0)
+ break;
+
+ mbx = MSW(stat);
+ switch (stat & 0xff) {
+ case 0x13:
+ qla2x00_process_response_queue(ha);
+ break;
+ case 0x1:
+ case 0x2:
+ case 0x10:
+ case 0x11:
+ qla2x00_mbx_completion(ha, (uint16_t)mbx);
+ status |= MBX_INTERRUPT;
+
+ /* Release mailbox registers. */
+ WRT_REG_WORD(®->semaphore, 0);
+ break;
+ case 0x12:
+ qla2x00_async_event(ha, mbx);
+ break;
+ case 0x15:
+ mbx = mbx << 16 | MBA_CMPLT_1_16BIT;
+ qla2x00_async_event(ha, mbx);
+ break;
+ case 0x16:
+ mbx = mbx << 16 | MBA_SCSI_COMPLETION;
+ qla2x00_async_event(ha, mbx);
+ break;
+ default:
+ DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
+ "(%d)\n",
+ ha->host_no, stat & 0xff));
+ break;
+ }
+ WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
+ RD_REG_WORD_RELAXED(®->hccr);
+ }
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ qla2x00_next(ha);
+ ha->last_irq_cpu = _smp_processor_id();
+ ha->total_isr_cnt++;
+
+ if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
+ (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
+ 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);
+ }
+
+ if (!list_empty(&ha->done_queue))
+ qla2x00_done(ha);
+
+ return (IRQ_HANDLED);
+}
+
+/**
+ * qla2x00_mbx_completion() - Process mailbox command completions.
+ * @ha: SCSI driver HA context
+ * @mb0: Mailbox0 register
+ */
+static void
+qla2x00_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0)
+{
+ uint16_t cnt;
+ uint16_t __iomem *wptr;
+ device_reg_t __iomem *reg = ha->iobase;
+
+ /* Load return mailbox registers. */
+ ha->flags.mbox_int = 1;
+ ha->mailbox_out[0] = mb0;
+ wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
+
+ for (cnt = 1; cnt < ha->mbx_count; cnt++) {
+ if (IS_QLA2200(ha) && cnt == 8)
+ wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
+ if (cnt == 4 || cnt == 5)
+ ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
+ else
+ 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));
+ }
+}
+
+/**
+ * qla2x00_async_event() - Process aynchronous events.
+ * @ha: SCSI driver HA context
+ * @mb0: Mailbox0 register
+ */
+static void
+qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx)
+{
+ static char *link_speeds[5] = { "1", "2", "4", "?", "10" };
+ char *link_speed;
+ uint16_t mb[4];
+ uint16_t handle_cnt;
+ uint16_t cnt;
+ uint32_t handles[5];
+ device_reg_t __iomem *reg = ha->iobase;
+ uint32_t rscn_entry, host_pid;
+ uint8_t rscn_queue_index;
+
+ /* Setup to process RIO completion. */
+ handle_cnt = 0;
+ mb[0] = LSW(mbx);
+ switch (mb[0]) {
+ case MBA_SCSI_COMPLETION:
+ if (IS_QLA2100(ha) || IS_QLA2200(ha))
+ handles[0] = le32_to_cpu(
+ ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) |
+ RD_MAILBOX_REG(ha, reg, 1));
+ else
+ handles[0] = le32_to_cpu(
+ ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) |
+ MSW(mbx));
+ handle_cnt = 1;
+ break;
+ case MBA_CMPLT_1_16BIT:
+ if (IS_QLA2100(ha) || IS_QLA2200(ha))
+ handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
+ else
+ handles[0] = MSW(mbx);
+ handle_cnt = 1;
+ mb[0] = MBA_SCSI_COMPLETION;
+ break;
+ case MBA_CMPLT_2_16BIT:
+ handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
+ handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
+ handle_cnt = 2;
+ mb[0] = MBA_SCSI_COMPLETION;
+ break;
+ case MBA_CMPLT_3_16BIT:
+ handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
+ handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
+ handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3);
+ handle_cnt = 3;
+ mb[0] = MBA_SCSI_COMPLETION;
+ break;
+ case MBA_CMPLT_4_16BIT:
+ handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
+ handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
+ handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3);
+ handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
+ handle_cnt = 4;
+ mb[0] = MBA_SCSI_COMPLETION;
+ break;
+ case MBA_CMPLT_5_16BIT:
+ handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
+ handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
+ handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3);
+ handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
+ handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
+ handle_cnt = 5;
+ mb[0] = MBA_SCSI_COMPLETION;
+ break;
+ case MBA_CMPLT_2_32BIT:
+ handles[0] = le32_to_cpu(
+ ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) |
+ RD_MAILBOX_REG(ha, reg, 1));
+ handles[1] = le32_to_cpu(
+ ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
+ RD_MAILBOX_REG(ha, reg, 6));
+ handle_cnt = 2;
+ mb[0] = MBA_SCSI_COMPLETION;
+ break;
+ default:
+ break;
+ }
+
+ switch (mb[0]) {
+ case MBA_SCSI_COMPLETION: /* Fast Post */
+ if (!ha->flags.online)
+ break;
+
+ for (cnt = 0; cnt < handle_cnt; cnt++)
+ qla2x00_process_completed_request(ha, handles[cnt]);
+ break;
+
+ case MBA_RESET: /* Reset */
+ DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha->host_no));
+
+ set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
+ break;
+
+ case MBA_SYSTEM_ERR: /* System Error */
+ mb[1] = RD_MAILBOX_REG(ha, reg, 1);
+ mb[2] = RD_MAILBOX_REG(ha, reg, 2);
+ mb[3] = RD_MAILBOX_REG(ha, reg, 3);
+
+ qla_printk(KERN_INFO, ha,
+ "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n",
+ mb[1], mb[2], mb[3]);
+
+ if (IS_QLA2100(ha) || IS_QLA2200(ha))
+ qla2100_fw_dump(ha, 1);
+ else
+ qla2300_fw_dump(ha, 1);
+
+ if (mb[1] == 0) {
+ qla_printk(KERN_INFO, ha,
+ "Unrecoverable Hardware Error: adapter marked "
+ "OFFLINE!\n");
+ ha->flags.online = 0;
+ } else
+ set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+ break;
+
+ case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
+ DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n",
+ ha->host_no));
+ qla_printk(KERN_WARNING, ha, "ISP Request Transfer Error.\n");
+
+ set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+ break;
+
+ case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
+ DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
+ ha->host_no));
+ qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n");
+
+ set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+ break;
+
+ case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
+ DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
+ ha->host_no));
+ break;
+
+ case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
+ 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);
+}