crypto: qat - call functions in adf_sriov if available

Call the function configure_iov_threads(), adf_enable_vf2pf_interrupts()
and adf_pf2vf_notify_restarting() only if present in the struct
adf_hw_device_data of the device.
This is to allow for QAT drivers that do not implement those functions.
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Wojciech Ziemba <wojciech.ziemba@intel.com>
Reviewed-by: Maksim Lukoshkov <maksim.lukoshkov@intel.com>
Reviewed-by: Fiona Trahe <fiona.trahe@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/qat/qat_common/adf_sriov.c

@@ -62,10 +62,12 @@ static int adf_enable_sriov(struct adf_accel_dev *accel_dev)
 	}
 
 	/* Set Valid bits in AE Thread to PCIe Function Mapping */
-	hw_data->configure_iov_threads(accel_dev, true);
+	if (hw_data->configure_iov_threads)
+		hw_data->configure_iov_threads(accel_dev, true);
 
 	/* Enable VF to PF interrupts for all VFs */
-	adf_enable_vf2pf_interrupts(accel_dev, BIT_ULL(totalvfs) - 1);
+	if (hw_data->get_pf2vf_offset)
+		adf_enable_vf2pf_interrupts(accel_dev, BIT_ULL(totalvfs) - 1);
 
 	/*
 	 * Due to the hardware design, when SR-IOV and the ring arbiter
@@ -94,15 +96,18 @@ void adf_disable_sriov(struct adf_accel_dev *accel_dev)
 	if (!accel_dev->pf.vf_info)
 		return;
 
-	adf_pf2vf_notify_restarting(accel_dev);
+	if (hw_data->get_pf2vf_offset)
+		adf_pf2vf_notify_restarting(accel_dev);
 
 	pci_disable_sriov(accel_to_pci_dev(accel_dev));
 
 	/* Disable VF to PF interrupts */
-	adf_disable_vf2pf_interrupts(accel_dev, GENMASK(31, 0));
+	if (hw_data->get_pf2vf_offset)
+		adf_disable_vf2pf_interrupts(accel_dev, GENMASK(31, 0));
 
 	/* Clear Valid bits in AE Thread to PCIe Function Mapping */
-	hw_data->configure_iov_threads(accel_dev, false);
+	if (hw_data->configure_iov_threads)
+		hw_data->configure_iov_threads(accel_dev, false);
 
 	for (i = 0, vf = accel_dev->pf.vf_info; i < totalvfs; i++, vf++) {
 		tasklet_disable(&vf->vf2pf_bh_tasklet);