crypto: qat - share adf_enable_pf2vf_comms() from adf_pf2vf_msg.c

The PFVF protocol "enable" functions are direction specific but not
device specific. Move the protocol enable function for the PF into the
PF specific protocol file for better file organization and duplicated
code reduction.

NOTE: the patch keeps gen4 disabled as it doesn't have full PFVF
support yet.
Signed-off-by: Marco Chiappero <marco.chiappero@intel.com>
Co-developed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.c

@@ -191,7 +191,7 @@ static int adf_init_device(struct adf_accel_dev *accel_dev)
 	return ret;
 }
 
-static int adf_enable_pf2vf_comms(struct adf_accel_dev *accel_dev)
+static int pfvf_comms_disabled(struct adf_accel_dev *accel_dev)
 {
 	return 0;
 }
@@ -253,7 +253,7 @@ void adf_init_hw_data_4xxx(struct adf_hw_device_data *hw_data)
 	hw_data->uof_get_ae_mask = uof_get_ae_mask;
 	hw_data->set_msix_rttable = set_msix_default_rttable;
 	hw_data->set_ssm_wdtimer = adf_gen4_set_ssm_wdtimer;
-	hw_data->enable_pfvf_comms = adf_enable_pf2vf_comms;
+	hw_data->enable_pfvf_comms = pfvf_comms_disabled;
 	hw_data->disable_iov = adf_disable_sriov;
 	hw_data->min_iov_compat_ver = ADF_PFVF_COMPAT_THIS_VERSION;
 

drivers/crypto/qat/qat_c3xxx/adf_c3xxx_hw_data.c

@@ -91,13 +91,6 @@ static void adf_enable_ints(struct adf_accel_dev *accel_dev)
 		   ADF_C3XXX_SMIA1_MASK);
 }
 
-static int adf_enable_pf2vf_comms(struct adf_accel_dev *accel_dev)
-{
-	spin_lock_init(&accel_dev->pf.vf2pf_ints_lock);
-
-	return 0;
-}
-
 static void configure_iov_threads(struct adf_accel_dev *accel_dev, bool enable)
 {
 	adf_gen2_cfg_iov_thds(accel_dev, enable,

drivers/crypto/qat/qat_c62x/adf_c62x_hw_data.c

@@ -93,13 +93,6 @@ static void adf_enable_ints(struct adf_accel_dev *accel_dev)
 		   ADF_C62X_SMIA1_MASK);
 }
 
-static int adf_enable_pf2vf_comms(struct adf_accel_dev *accel_dev)
-{
-	spin_lock_init(&accel_dev->pf.vf2pf_ints_lock);
-
-	return 0;
-}
-
 static void configure_iov_threads(struct adf_accel_dev *accel_dev, bool enable)
 {
 	adf_gen2_cfg_iov_thds(accel_dev, enable,

drivers/crypto/qat/qat_common/adf_common_drv.h

@@ -196,6 +196,7 @@ void adf_disable_vf2pf_interrupts_irq(struct adf_accel_dev *accel_dev,
 				      u32 vf_mask);
 void adf_enable_vf2pf_interrupts(struct adf_accel_dev *accel_dev,
 				 u32 vf_mask);
+int adf_enable_pf2vf_comms(struct adf_accel_dev *accel_dev);
 void adf_enable_pf2vf_interrupts(struct adf_accel_dev *accel_dev);
 void adf_disable_pf2vf_interrupts(struct adf_accel_dev *accel_dev);
 void adf_schedule_vf2pf_handler(struct adf_accel_vf_info *vf_info);
@@ -210,6 +211,11 @@ void adf_flush_vf_wq(struct adf_accel_dev *accel_dev);
 #else
 #define adf_sriov_configure NULL
 
+static inline int adf_enable_pf2vf_comms(struct adf_accel_dev *accel_dev)
+{
+	return 0;
+}
+
 static inline void adf_disable_sriov(struct adf_accel_dev *accel_dev)
 {
 }

drivers/crypto/qat/qat_common/adf_pf2vf_msg.c

@@ -396,3 +396,21 @@ int adf_enable_vf2pf_comms(struct adf_accel_dev *accel_dev)
 	return adf_vf2pf_request_version(accel_dev);
 }
 EXPORT_SYMBOL_GPL(adf_enable_vf2pf_comms);
+
+/**
+ * adf_enable_pf2vf_comms() - Function enables communication from pf to vf
+ *
+ * @accel_dev: Pointer to acceleration device virtual function.
+ *
+ * This function carries out the necessary steps to setup and start the PFVF
+ * communication channel, if any.
+ *
+ * Return: 0 on success, error code otherwise.
+ */
+int adf_enable_pf2vf_comms(struct adf_accel_dev *accel_dev)
+{
+	spin_lock_init(&accel_dev->pf.vf2pf_ints_lock);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(adf_enable_pf2vf_comms);

drivers/crypto/qat/qat_dh895xcc/adf_dh895xcc_hw_data.c

@@ -158,13 +158,6 @@ static void disable_vf2pf_interrupts(void __iomem *pmisc_addr, u32 vf_mask)
 	}
 }
 
-static int adf_enable_pf2vf_comms(struct adf_accel_dev *accel_dev)
-{
-	spin_lock_init(&accel_dev->pf.vf2pf_ints_lock);
-
-	return 0;
-}
-
 static void configure_iov_threads(struct adf_accel_dev *accel_dev, bool enable)
 {
 	adf_gen2_cfg_iov_thds(accel_dev, enable,