From: Ahsan Atta Date: Wed, 13 May 2026 15:16:57 +0000 (+0200) Subject: crypto: qat - skip restart for down devices X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9676657117b79f88c22875680c36d7da84b75eca;p=thirdparty%2Fkernel%2Flinux.git crypto: qat - skip restart for down devices 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 Reviewed-by: Giovanni Cabiddu Signed-off-by: Herbert Xu --- diff --git a/drivers/crypto/intel/qat/qat_common/adf_aer.c b/drivers/crypto/intel/qat/qat_common/adf_aer.c index 365637e40439d..7255cac5aaa68 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_aer.c +++ b/drivers/crypto/intel/qat/qat_common/adf_aer.c @@ -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; }