crypto: qat - add hook to initialize vector routing table

Add an hook to initialize the vector routing table with the default
values before MSIx is enabled.
The new function set_msix_rttable() is called only if present in the
struct adf_hw_device_data of the device. This is to allow for QAT
devices that do not support that functionality.
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Fiona Trahe <fiona.trahe@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/qat/qat_common/adf_accel_devices.h

@@ -175,6 +175,7 @@ struct adf_hw_device_data {
 	void (*enable_ints)(struct adf_accel_dev *accel_dev);
 	int (*enable_vf2pf_comms)(struct adf_accel_dev *accel_dev);
 	void (*reset_device)(struct adf_accel_dev *accel_dev);
+	void (*set_msix_rttable)(struct adf_accel_dev *accel_dev);
 	char *(*uof_get_name)(u32 obj_num);
 	u32 (*uof_get_num_objs)(void);
 	u32 (*uof_get_ae_mask)(u32 obj_num);

drivers/crypto/qat/qat_common/adf_isr.c

@@ -21,6 +21,9 @@ static int adf_enable_msix(struct adf_accel_dev *accel_dev)
 	struct adf_hw_device_data *hw_data = accel_dev->hw_device;
 	u32 msix_num_entries = 1;
 
+	if (hw_data->set_msix_rttable)
+		hw_data->set_msix_rttable(accel_dev);
+
 	/* If SR-IOV is disabled, add entries for each bank */
 	if (!accel_dev->pf.vf_info) {
 		int i;