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path: root/drivers/scsi/qla2xxx/qla_isr.c
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Diffstat (limited to 'drivers/scsi/qla2xxx/qla_isr.c')
-rw-r--r--drivers/scsi/qla2xxx/qla_isr.c82
1 files changed, 67 insertions, 15 deletions
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index ff9c86b1a0d8..9bc86b9e86b1 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -56,6 +56,16 @@ qla2100_intr_handler(int irq, void *dev_id)
vha = pci_get_drvdata(ha->pdev);
for (iter = 50; iter--; ) {
hccr = RD_REG_WORD(&reg->hccr);
+ /* Check for PCI disconnection */
+ if (hccr == 0xffff) {
+ /*
+ * Schedule this on the default system workqueue so that
+ * all the adapter workqueues and the DPC thread can be
+ * shutdown cleanly.
+ */
+ schedule_work(&ha->board_disable);
+ break;
+ }
if (hccr & HCCR_RISC_PAUSE) {
if (pci_channel_offline(ha->pdev))
break;
@@ -110,6 +120,22 @@ qla2100_intr_handler(int irq, void *dev_id)
return (IRQ_HANDLED);
}
+bool
+qla2x00_check_reg_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
+{
+ /* Check for PCI disconnection */
+ if (reg == 0xffffffff) {
+ /*
+ * Schedule this on the default system workqueue so that all the
+ * adapter workqueues and the DPC thread can be shutdown
+ * cleanly.
+ */
+ schedule_work(&vha->hw->board_disable);
+ return true;
+ } else
+ return false;
+}
+
/**
* qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
* @irq:
@@ -148,11 +174,14 @@ qla2300_intr_handler(int irq, void *dev_id)
vha = pci_get_drvdata(ha->pdev);
for (iter = 50; iter--; ) {
stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
+ if (qla2x00_check_reg_for_disconnect(vha, stat))
+ break;
if (stat & HSR_RISC_PAUSED) {
if (unlikely(pci_channel_offline(ha->pdev)))
break;
hccr = RD_REG_WORD(&reg->hccr);
+
if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
ql_log(ql_log_warn, vha, 0x5026,
"Parity error -- HCCR=%x, Dumping "
@@ -269,11 +298,18 @@ qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
{ "Complete", "Request Notification", "Time Extension" };
int rval;
struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
+ struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
uint16_t __iomem *wptr;
uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
/* Seed data -- mailbox1 -> mailbox7. */
- wptr = (uint16_t __iomem *)&reg24->mailbox1;
+ if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
+ wptr = (uint16_t __iomem *)&reg24->mailbox1;
+ else if (IS_QLA8044(vha->hw))
+ wptr = (uint16_t __iomem *)&reg82->mailbox_out[1];
+ else
+ return;
+
for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
mb[cnt] = RD_REG_WORD(wptr);
@@ -287,7 +323,7 @@ qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
case MBA_IDC_COMPLETE:
if (mb[1] >> 15) {
vha->hw->flags.idc_compl_status = 1;
- if (vha->hw->notify_dcbx_comp)
+ if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
complete(&vha->hw->dcbx_comp);
}
break;
@@ -758,7 +794,7 @@ skip_rio:
ql_dbg(ql_dbg_async, vha, 0x500d,
"DCBX Completed -- %04x %04x %04x.\n",
mb[1], mb[2], mb[3]);
- if (ha->notify_dcbx_comp)
+ if (ha->notify_dcbx_comp && !vha->vp_idx)
complete(&ha->dcbx_comp);
} else
@@ -1032,7 +1068,7 @@ skip_rio:
}
}
case MBA_IDC_COMPLETE:
- if (ha->notify_lb_portup_comp)
+ if (ha->notify_lb_portup_comp && !vha->vp_idx)
complete(&ha->lb_portup_comp);
/* Fallthru */
case MBA_IDC_TIME_EXT:
@@ -1991,7 +2027,6 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
/* Fast path completion. */
if (comp_status == CS_COMPLETE && scsi_status == 0) {
- qla2x00_do_host_ramp_up(vha);
qla2x00_process_completed_request(vha, req, handle);
return;
@@ -2250,9 +2285,6 @@ out:
cp->cmnd, scsi_bufflen(cp), rsp_info_len,
resid_len, fw_resid_len);
- if (!res)
- qla2x00_do_host_ramp_up(vha);
-
if (rsp->status_srb == NULL)
sp->done(ha, sp, res);
}
@@ -2575,6 +2607,8 @@ qla24xx_intr_handler(int irq, void *dev_id)
vha = pci_get_drvdata(ha->pdev);
for (iter = 50; iter--; ) {
stat = RD_REG_DWORD(&reg->host_status);
+ if (qla2x00_check_reg_for_disconnect(vha, stat))
+ break;
if (stat & HSRX_RISC_PAUSED) {
if (unlikely(pci_channel_offline(ha->pdev)))
break;
@@ -2644,6 +2678,7 @@ qla24xx_msix_rsp_q(int irq, void *dev_id)
struct device_reg_24xx __iomem *reg;
struct scsi_qla_host *vha;
unsigned long flags;
+ uint32_t stat = 0;
rsp = (struct rsp_que *) dev_id;
if (!rsp) {
@@ -2657,11 +2692,19 @@ qla24xx_msix_rsp_q(int irq, void *dev_id)
spin_lock_irqsave(&ha->hardware_lock, flags);
vha = pci_get_drvdata(ha->pdev);
+ /*
+ * Use host_status register to check to PCI disconnection before we
+ * we process the response queue.
+ */
+ stat = RD_REG_DWORD(&reg->host_status);
+ if (qla2x00_check_reg_for_disconnect(vha, stat))
+ goto out;
qla24xx_process_response_queue(vha, rsp);
if (!ha->flags.disable_msix_handshake) {
WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
RD_REG_DWORD_RELAXED(&reg->hccr);
}
+out:
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return IRQ_HANDLED;
@@ -2671,9 +2714,11 @@ static irqreturn_t
qla25xx_msix_rsp_q(int irq, void *dev_id)
{
struct qla_hw_data *ha;
+ scsi_qla_host_t *vha;
struct rsp_que *rsp;
struct device_reg_24xx __iomem *reg;
unsigned long flags;
+ uint32_t hccr = 0;
rsp = (struct rsp_que *) dev_id;
if (!rsp) {
@@ -2682,17 +2727,21 @@ qla25xx_msix_rsp_q(int irq, void *dev_id)
return IRQ_NONE;
}
ha = rsp->hw;
+ vha = pci_get_drvdata(ha->pdev);
/* Clear the interrupt, if enabled, for this response queue */
if (!ha->flags.disable_msix_handshake) {
reg = &ha->iobase->isp24;
spin_lock_irqsave(&ha->hardware_lock, flags);
WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
- RD_REG_DWORD_RELAXED(&reg->hccr);
+ hccr = RD_REG_DWORD_RELAXED(&reg->hccr);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
+ if (qla2x00_check_reg_for_disconnect(vha, hccr))
+ goto out;
queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
+out:
return IRQ_HANDLED;
}
@@ -2723,6 +2772,8 @@ qla24xx_msix_default(int irq, void *dev_id)
vha = pci_get_drvdata(ha->pdev);
do {
stat = RD_REG_DWORD(&reg->host_status);
+ if (qla2x00_check_reg_for_disconnect(vha, stat))
+ break;
if (stat & HSRX_RISC_PAUSED) {
if (unlikely(pci_channel_offline(ha->pdev)))
break;
@@ -2937,7 +2988,7 @@ msix_out:
int
qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
{
- int ret;
+ int ret = QLA_FUNCTION_FAILED;
device_reg_t __iomem *reg = ha->iobase;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
@@ -2971,10 +3022,12 @@ qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
ha->chip_revision, ha->fw_attributes);
goto clear_risc_ints;
}
- ql_log(ql_log_info, vha, 0x0037,
- "MSI-X Falling back-to MSI mode -%d.\n", ret);
+
skip_msix:
+ ql_log(ql_log_info, vha, 0x0037,
+ "Falling back-to MSI mode -%d.\n", ret);
+
if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
!IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha))
goto skip_msi;
@@ -2986,14 +3039,13 @@ skip_msix:
ha->flags.msi_enabled = 1;
} else
ql_log(ql_log_warn, vha, 0x0039,
- "MSI-X; Falling back-to INTa mode -- %d.\n", ret);
+ "Falling back-to INTa mode -- %d.\n", ret);
+skip_msi:
/* Skip INTx on ISP82xx. */
if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
return QLA_FUNCTION_FAILED;
-skip_msi:
-
ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
ha->flags.msi_enabled ? 0 : IRQF_SHARED,
QLA2XXX_DRIVER_NAME, rsp);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 09:56:15 +0000