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crypto: qat - skip restart for down devices

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Skip the shutdown and restart flow when adf_slot_reset() is entered
for a device that is already down. In that case, leave
ADF_STATUS_RESTARTING clear and let adf_slot_reset() restore PCI
function state without calling adf_dev_up(), re-enabling SR-IOV, or
sending restarted notifications.

This is in preparation for adding reset_prepare() and reset_done()
callbacks in adf_aer.c.

Cc: stable@vger.kernel.org
Signed-off-by: Ahsan Atta <ahsan.atta@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Ahsan Atta 2026-05-13 17:16:57 +02:00 committed by Herbert Xu
parent e5712ff829
commit 9676657117
1 changed files with 8 additions and 0 deletions
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8
drivers/crypto/intel/qat/qat_common/adf_aer.c
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@ -33,6 +33,9 @@ static pci_ers_result_t adf_error_detected(struct pci_dev *pdev,
return PCI_ERS_RESULT_DISCONNECT;
}
if (!adf_dev_started(accel_dev))
return PCI_ERS_RESULT_CAN_RECOVER;
adf_error_notifier(accel_dev);
adf_pf2vf_notify_fatal_error(accel_dev);
set_bit(ADF_STATUS_RESTARTING, &accel_dev->status);
@ -204,6 +207,9 @@ static pci_ers_result_t adf_slot_reset(struct pci_dev *pdev)
return PCI_ERS_RESULT_DISCONNECT;
}
if (!adf_devmgr_in_reset(accel_dev))
goto reset_complete;
pci_restore_state(pdev);
res = adf_dev_up(accel_dev, false);
if (res && res != -EALREADY)
@ -213,6 +219,8 @@ static pci_ers_result_t adf_slot_reset(struct pci_dev *pdev)
adf_pf2vf_notify_restarted(accel_dev);
adf_dev_restarted_notify(accel_dev);
clear_bit(ADF_STATUS_RESTARTING, &accel_dev->status);
reset_complete:
return PCI_ERS_RESULT_RECOVERED;
}