diff options
| author | Giovanni Cabiddu <giovanni.cabiddu@intel.com> | 2025-03-26 15:59:47 +0000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2025-04-07 13:22:26 +0800 |
| commit | 097143f23a1164bfd1b6f70279d229be44da2e30 (patch) | |
| tree | a0c36c307bc6a32371c5447926b5c8553c05b127 /drivers/crypto/intel | |
| parent | 845bc952024dbf482c7434daeac66f764642d52d (diff) | |
crypto: qat - add shutdown handler to qat_420xx
During a warm reset via kexec, the system bypasses the driver removal
sequence, meaning that the remove() callback is not invoked.
If a QAT device is not shutdown properly, the device driver will fail to
load in a newly rebooted kernel.
This might result in output like the following after the kexec reboot:
420xx 0000:01:00.0: Failed to power up the device
420xx 0000:01:00.0: Failed to initialize device
420xx 0000:01:00.0: Resetting device qat_dev0
420xx 0000:01:00.0: probe with driver 420xx failed with error -14
Implement the shutdown() handler that hooks into the reboot notifier
list. This brings down the QAT device and ensures it is shut down
properly.
Cc: <stable@vger.kernel.org>
Fixes: fcf60f4bcf54 ("crypto: qat - add support for 420xx devices")
Reviewed-by: Ahsan Atta <ahsan.atta@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/intel')
| -rw-r--r-- | drivers/crypto/intel/qat/qat_420xx/adf_drv.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/crypto/intel/qat/qat_420xx/adf_drv.c b/drivers/crypto/intel/qat/qat_420xx/adf_drv.c index 8084aa0f7f41..b4731f02deb8 100644 --- a/drivers/crypto/intel/qat/qat_420xx/adf_drv.c +++ b/drivers/crypto/intel/qat/qat_420xx/adf_drv.c @@ -186,11 +186,19 @@ static void adf_remove(struct pci_dev *pdev) adf_cleanup_accel(accel_dev); } +static void adf_shutdown(struct pci_dev *pdev) +{ + struct adf_accel_dev *accel_dev = adf_devmgr_pci_to_accel_dev(pdev); + + adf_dev_down(accel_dev); +} + static struct pci_driver adf_driver = { .id_table = adf_pci_tbl, .name = ADF_420XX_DEVICE_NAME, .probe = adf_probe, .remove = adf_remove, + .shutdown = adf_shutdown, .sriov_configure = adf_sriov_configure, .err_handler = &adf_err_handler, }; |