From: Brian King <brking@xxxxxxxxxxxxxxxxxx>
If, when the ipr driver loads, the adapter is in an EEH error state,
it will currently oops and not be able to recover, as it attempts
to access memory that has not yet been allocated. We've seen this
occur in some kexec scenarios. The following patch fixes the oops
and also allows the driver to recover from these probe time EEH errors.
Signed-off-by: Brian King <brking@xxxxxxxxxxxxxxxxxx>
---
drivers/scsi/ipr.c | 265 +++++++++++++++++++++++++++++++++++------------------
drivers/scsi/ipr.h | 3
2 files changed, 179 insertions(+), 89 deletions(-)
Index: b/drivers/scsi/ipr.h
===================================================================
--- a/drivers/scsi/ipr.h 2014-03-11 17:13:10.759012001 -0500
+++ b/drivers/scsi/ipr.h 2014-03-11 17:13:24.279949356 -0500
@@ -231,6 +231,7 @@
#define IPR_WAIT_FOR_RESET_TIMEOUT (2 * HZ)
#define IPR_CHECK_FOR_RESET_TIMEOUT (HZ / 10)
#define IPR_WAIT_FOR_BIST_TIMEOUT (2 * HZ)
+#define IPR_PCI_ERROR_RECOVERY_TIMEOUT (120 * HZ)
#define IPR_PCI_RESET_TIMEOUT (HZ / 2)
#define IPR_SIS32_DUMP_TIMEOUT (15 * HZ)
#define IPR_SIS64_DUMP_TIMEOUT (40 * HZ)
@@ -1443,6 +1444,7 @@ struct ipr_ioa_cfg {
u8 dump_timeout:1;
u8 cfg_locked:1;
u8 clear_isr:1;
+ u8 probe_done:1;
u8 revid;
@@ -1521,6 +1523,7 @@ struct ipr_ioa_cfg {
wait_queue_head_t reset_wait_q;
wait_queue_head_t msi_wait_q;
+ wait_queue_head_t eeh_wait_q;
struct ipr_dump *dump;
enum ipr_sdt_state sdt_state;
Index: b/drivers/scsi/ipr.c
===================================================================
--- a/drivers/scsi/ipr.c 2014-03-11 17:13:10.759012001 -0500
+++ b/drivers/scsi/ipr.c 2014-03-11 17:13:24.279949356 -0500
@@ -8645,6 +8645,25 @@ static int ipr_reset_freeze(struct ipr_c
}
/**
+ * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
+ * @pdev: PCI device struct
+ *
+ * Description: This routine is called to tell us that the MMIO
+ * access to the IOA has been restored
+ */
+static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
+{
+ unsigned long flags = 0;
+ struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
+
+ spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
+ if (!ioa_cfg->probe_done)
+ pci_save_state(pdev);
+ spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
+ return PCI_ERS_RESULT_NEED_RESET;
+}
+
+/**
* ipr_pci_frozen - Called when slot has experienced a PCI bus error.
* @pdev: PCI device struct
*
@@ -8658,7 +8677,8 @@ static void ipr_pci_frozen(struct pci_de
struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
- _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
+ if (ioa_cfg->probe_done)
+ _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
}
@@ -8676,11 +8696,14 @@ static pci_ers_result_t ipr_pci_slot_res
struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
- if (ioa_cfg->needs_warm_reset)
- ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
- else
- _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
- IPR_SHUTDOWN_NONE);
+ if (ioa_cfg->probe_done) {
+ if (ioa_cfg->needs_warm_reset)
+ ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
+ else
+ _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
+ IPR_SHUTDOWN_NONE);
+ } else
+ wake_up_all(&ioa_cfg->eeh_wait_q);
spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
return PCI_ERS_RESULT_RECOVERED;
}
@@ -8699,17 +8722,20 @@ static void ipr_pci_perm_failure(struct
int i;
spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
- if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
- ioa_cfg->sdt_state = ABORT_DUMP;
- ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
- ioa_cfg->in_ioa_bringdown = 1;
- for (i = 0; i < ioa_cfg->hrrq_num; i++) {
- spin_lock(&ioa_cfg->hrrq[i]._lock);
- ioa_cfg->hrrq[i].allow_cmds = 0;
- spin_unlock(&ioa_cfg->hrrq[i]._lock);
- }
- wmb();
- ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
+ if (ioa_cfg->probe_done) {
+ if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
+ ioa_cfg->sdt_state = ABORT_DUMP;
+ ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
+ ioa_cfg->in_ioa_bringdown = 1;
+ for (i = 0; i < ioa_cfg->hrrq_num; i++) {
+ spin_lock(&ioa_cfg->hrrq[i]._lock);
+ ioa_cfg->hrrq[i].allow_cmds = 0;
+ spin_unlock(&ioa_cfg->hrrq[i]._lock);
+ }
+ wmb();
+ ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
+ } else
+ wake_up_all(&ioa_cfg->eeh_wait_q);
spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
}
@@ -8729,7 +8755,7 @@ static pci_ers_result_t ipr_pci_error_de
switch (state) {
case pci_channel_io_frozen:
ipr_pci_frozen(pdev);
- return PCI_ERS_RESULT_NEED_RESET;
+ return PCI_ERS_RESULT_CAN_RECOVER;
case pci_channel_io_perm_failure:
ipr_pci_perm_failure(pdev);
return PCI_ERS_RESULT_DISCONNECT;
@@ -8759,6 +8785,7 @@ static int ipr_probe_ioa_part2(struct ip
ENTER;
spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
+ ioa_cfg->probe_done = 1;
if (ioa_cfg->needs_hard_reset) {
ioa_cfg->needs_hard_reset = 0;
ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
@@ -9034,16 +9061,6 @@ static int ipr_alloc_mem(struct ipr_ioa_
if (!ioa_cfg->vpd_cbs)
goto out_free_res_entries;
- for (i = 0; i < ioa_cfg->hrrq_num; i++) {
- INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
- INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
- spin_lock_init(&ioa_cfg->hrrq[i]._lock);
- if (i == 0)
- ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
- else
- ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
- }
-
if (ipr_alloc_cmd_blks(ioa_cfg))
goto out_free_vpd_cbs;
@@ -9144,6 +9161,48 @@ static void ipr_initialize_bus_attr(stru
}
/**
+ * ipr_init_regs - Initialize IOA registers
+ * @ioa_cfg: ioa config struct
+ *
+ * Return value:
+ * none
+ **/
+static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
+{
+ const struct ipr_interrupt_offsets *p;
+ struct ipr_interrupts *t;
+ void __iomem *base;
+
+ p = &ioa_cfg->chip_cfg->regs;
+ t = &ioa_cfg->regs;
+ base = ioa_cfg->hdw_dma_regs;
+
+ t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
+ t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
+ t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
+ t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
+ t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
+ t->clr_interrupt_reg = base + p->clr_interrupt_reg;
+ t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
+ t->sense_interrupt_reg = base + p->sense_interrupt_reg;
+ t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
+ t->ioarrin_reg = base + p->ioarrin_reg;
+ t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
+ t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
+ t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
+ t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
+ t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
+ t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
+
+ if (ioa_cfg->sis64) {
+ t->init_feedback_reg = base + p->init_feedback_reg;
+ t->dump_addr_reg = base + p->dump_addr_reg;
+ t->dump_data_reg = base + p->dump_data_reg;
+ t->endian_swap_reg = base + p->endian_swap_reg;
+ }
+}
+
+/**
* ipr_init_ioa_cfg - Initialize IOA config struct
* @ioa_cfg: ioa config struct
* @host: scsi host struct
@@ -9155,9 +9214,7 @@ static void ipr_initialize_bus_attr(stru
static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
struct Scsi_Host *host, struct pci_dev *pdev)
{
- const struct ipr_interrupt_offsets *p;
- struct ipr_interrupts *t;
- void __iomem *base;
+ int i;
ioa_cfg->host = host;
ioa_cfg->pdev = pdev;
@@ -9177,6 +9234,7 @@ static void ipr_init_ioa_cfg(struct ipr_
INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
init_waitqueue_head(&ioa_cfg->reset_wait_q);
init_waitqueue_head(&ioa_cfg->msi_wait_q);
+ init_waitqueue_head(&ioa_cfg->eeh_wait_q);
ioa_cfg->sdt_state = INACTIVE;
ipr_initialize_bus_attr(ioa_cfg);
@@ -9187,44 +9245,33 @@ static void ipr_init_ioa_cfg(struct ipr_
host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
+ ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
+ + ((sizeof(struct ipr_config_table_entry64)
+ * ioa_cfg->max_devs_supported)));
} else {
host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
+ ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
+ + ((sizeof(struct ipr_config_table_entry)
+ * ioa_cfg->max_devs_supported)));
}
+
host->max_channel = IPR_MAX_BUS_TO_SCAN;
host->unique_id = host->host_no;
host->max_cmd_len = IPR_MAX_CDB_LEN;
host->can_queue = ioa_cfg->max_cmds;
pci_set_drvdata(pdev, ioa_cfg);
- p = &ioa_cfg->chip_cfg->regs;
- t = &ioa_cfg->regs;
- base = ioa_cfg->hdw_dma_regs;
-
- t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
- t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
- t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
- t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
- t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
- t->clr_interrupt_reg = base + p->clr_interrupt_reg;
- t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
- t->sense_interrupt_reg = base + p->sense_interrupt_reg;
- t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
- t->ioarrin_reg = base + p->ioarrin_reg;
- t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
- t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
- t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
- t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
- t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
- t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
-
- if (ioa_cfg->sis64) {
- t->init_feedback_reg = base + p->init_feedback_reg;
- t->dump_addr_reg = base + p->dump_addr_reg;
- t->dump_data_reg = base + p->dump_data_reg;
- t->endian_swap_reg = base + p->endian_swap_reg;
+ for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
+ INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
+ INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
+ spin_lock_init(&ioa_cfg->hrrq[i]._lock);
+ if (i == 0)
+ ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
+ else
+ ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
}
}
@@ -9247,6 +9294,26 @@ ipr_get_chip_info(const struct pci_devic
return NULL;
}
+/**
+ * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
+ * during probe time
+ * @ioa_cfg: ioa config struct
+ *
+ * Return value:
+ * None
+ **/
+static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
+{
+ struct pci_dev *pdev = ioa_cfg->pdev;
+
+ if (pci_channel_offline(pdev)) {
+ wait_event_timeout(ioa_cfg->eeh_wait_q,
+ !pci_channel_offline(pdev),
+ IPR_PCI_ERROR_RECOVERY_TIMEOUT);
+ pci_restore_state(pdev);
+ }
+}
+
static int ipr_enable_msix(struct ipr_ioa_cfg *ioa_cfg)
{
struct msix_entry entries[IPR_MAX_MSIX_VECTORS];
@@ -9261,6 +9328,7 @@ static int ipr_enable_msix(struct ipr_io
vectors = err;
if (err < 0) {
+ ipr_wait_for_pci_err_recovery(ioa_cfg);
pci_disable_msix(ioa_cfg->pdev);
return err;
}
@@ -9284,6 +9352,7 @@ static int ipr_enable_msi(struct ipr_ioa
vectors = err;
if (err < 0) {
+ ipr_wait_for_pci_err_recovery(ioa_cfg);
pci_disable_msi(ioa_cfg->pdev);
return err;
}
@@ -9438,19 +9507,13 @@ static int ipr_probe_ioa(struct pci_dev
ENTER;
- if ((rc = pci_enable_device(pdev))) {
- dev_err(&pdev->dev, "Cannot enable adapter\n");
- goto out;
- }
-
dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
-
host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
if (!host) {
dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
rc = -ENOMEM;
- goto out_disable;
+ goto out;
}
ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
@@ -9480,6 +9543,8 @@ static int ipr_probe_ioa(struct pci_dev
ioa_cfg->revid = pdev->revision;
+ ipr_init_ioa_cfg(ioa_cfg, host, pdev);
+
ipr_regs_pci = pci_resource_start(pdev, 0);
rc = pci_request_regions(pdev, IPR_NAME);
@@ -9489,22 +9554,35 @@ static int ipr_probe_ioa(struct pci_dev
goto out_scsi_host_put;
}
+ rc = pci_enable_device(pdev);
+
+ if (rc || pci_channel_offline(pdev)) {
+ if (pci_channel_offline(pdev)) {
+ ipr_wait_for_pci_err_recovery(ioa_cfg);
+ rc = pci_enable_device(pdev);
+ }
+
+ if (rc) {
+ dev_err(&pdev->dev, "Cannot enable adapter\n");
+ ipr_wait_for_pci_err_recovery(ioa_cfg);
+ goto out_release_regions;
+ }
+ }
+
ipr_regs = pci_ioremap_bar(pdev, 0);
if (!ipr_regs) {
dev_err(&pdev->dev,
"Couldn't map memory range of registers\n");
rc = -ENOMEM;
- goto out_release_regions;
+ goto out_disable;
}
ioa_cfg->hdw_dma_regs = ipr_regs;
ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
- ipr_init_ioa_cfg(ioa_cfg, host, pdev);
-
- pci_set_master(pdev);
+ ipr_init_regs(ioa_cfg);
if (ioa_cfg->sis64) {
rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
@@ -9512,7 +9590,6 @@ static int ipr_probe_ioa(struct pci_dev
dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
}
-
} else
rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
@@ -9526,10 +9603,15 @@ static int ipr_probe_ioa(struct pci_dev
if (rc != PCIBIOS_SUCCESSFUL) {
dev_err(&pdev->dev, "Write of cache line size failed\n");
+ ipr_wait_for_pci_err_recovery(ioa_cfg);
rc = -EIO;
goto cleanup_nomem;
}
+ /* Issue MMIO read to ensure card is not in EEH */
+ interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
+ ipr_wait_for_pci_err_recovery(ioa_cfg);
+
if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
dev_err(&pdev->dev, "The max number of MSIX is %d\n",
IPR_MAX_MSIX_VECTORS);
@@ -9548,10 +9630,22 @@ static int ipr_probe_ioa(struct pci_dev
dev_info(&pdev->dev, "Cannot enable MSI.\n");
}
+ pci_set_master(pdev);
+
+ if (pci_channel_offline(pdev)) {
+ ipr_wait_for_pci_err_recovery(ioa_cfg);
+ pci_set_master(pdev);
+ if (pci_channel_offline(pdev)) {
+ rc = -EIO;
+ goto out_msi_disable;
+ }
+ }
+
if (ioa_cfg->intr_flag == IPR_USE_MSI ||
ioa_cfg->intr_flag == IPR_USE_MSIX) {
rc = ipr_test_msi(ioa_cfg, pdev);
if (rc == -EOPNOTSUPP) {
+ ipr_wait_for_pci_err_recovery(ioa_cfg);
if (ioa_cfg->intr_flag == IPR_USE_MSI) {
ioa_cfg->intr_flag &= ~IPR_USE_MSI;
pci_disable_msi(pdev);
@@ -9581,30 +9675,12 @@ static int ipr_probe_ioa(struct pci_dev
(unsigned int)num_online_cpus(),
(unsigned int)IPR_MAX_HRRQ_NUM);
- /* Save away PCI config space for use following IOA reset */
- rc = pci_save_state(pdev);
-
- if (rc != PCIBIOS_SUCCESSFUL) {
- dev_err(&pdev->dev, "Failed to save PCI config space\n");
- rc = -EIO;
- goto out_msi_disable;
- }
-
if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
goto out_msi_disable;
if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
goto out_msi_disable;
- if (ioa_cfg->sis64)
- ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
- + ((sizeof(struct ipr_config_table_entry64)
- * ioa_cfg->max_devs_supported)));
- else
- ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
- + ((sizeof(struct ipr_config_table_entry)
- * ioa_cfg->max_devs_supported)));
-
rc = ipr_alloc_mem(ioa_cfg);
if (rc < 0) {
dev_err(&pdev->dev,
@@ -9612,6 +9688,15 @@ static int ipr_probe_ioa(struct pci_dev
goto out_msi_disable;
}
+ /* Save away PCI config space for use following IOA reset */
+ rc = pci_save_state(pdev);
+
+ if (rc != PCIBIOS_SUCCESSFUL) {
+ dev_err(&pdev->dev, "Failed to save PCI config space\n");
+ rc = -EIO;
+ goto cleanup_nolog;
+ }
+
/*
* If HRRQ updated interrupt is not masked, or reset alert is set,
* the card is in an unknown state and needs a hard reset
@@ -9668,18 +9753,19 @@ out:
cleanup_nolog:
ipr_free_mem(ioa_cfg);
out_msi_disable:
+ ipr_wait_for_pci_err_recovery(ioa_cfg);
if (ioa_cfg->intr_flag == IPR_USE_MSI)
pci_disable_msi(pdev);
else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
pci_disable_msix(pdev);
cleanup_nomem:
iounmap(ipr_regs);
+out_disable:
+ pci_disable_device(pdev);
out_release_regions:
pci_release_regions(pdev);
out_scsi_host_put:
scsi_host_put(host);
-out_disable:
- pci_disable_device(pdev);
goto out;
}
@@ -10017,6 +10103,7 @@ MODULE_DEVICE_TABLE(pci, ipr_pci_table);
static const struct pci_error_handlers ipr_err_handler = {
.error_detected = ipr_pci_error_detected,
+ .mmio_enabled = ipr_pci_mmio_enabled,
.slot_reset = ipr_pci_slot_reset,
};
--
--
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