crypto: qat - get compression extended capabilities

Get compression extended capabilities mask from firmware through the
init/admin channel.
These capabilities are stored in the accel_dev structure and will be
communicated to VF through the PFVF channel.
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Marco Chiappero <marco.chiappero@intel.com>
Reviewed-by: Fiona Trahe <fiona.trahe@intel.com>
Reviewed-by: Marco Chiappero <marco.chiappero@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/qat/qat_common/adf_accel_devices.h

@@ -198,6 +198,7 @@ struct adf_hw_device_data {
 	u32 fuses;
 	u32 straps;
 	u32 accel_capabilities_mask;
+	u32 extended_dc_capabilities;
 	u32 instance_id;
 	u16 accel_mask;
 	u32 ae_mask;

drivers/crypto/qat/qat_common/adf_admin.c

@@ -194,6 +194,35 @@ static int adf_set_fw_constants(struct adf_accel_dev *accel_dev)
 	return adf_send_admin(accel_dev, &req, &resp, ae_mask);
 }
 
+static int adf_get_dc_capabilities(struct adf_accel_dev *accel_dev,
+				   u32 *capabilities)
+{
+	struct adf_hw_device_data *hw_device = accel_dev->hw_device;
+	struct icp_qat_fw_init_admin_resp resp;
+	struct icp_qat_fw_init_admin_req req;
+	unsigned long ae_mask;
+	unsigned long ae;
+	int ret;
+
+	/* Target only service accelerator engines */
+	ae_mask = hw_device->ae_mask & ~hw_device->admin_ae_mask;
+
+	memset(&req, 0, sizeof(req));
+	memset(&resp, 0, sizeof(resp));
+	req.cmd_id = ICP_QAT_FW_COMP_CAPABILITY_GET;
+
+	*capabilities = 0;
+	for_each_set_bit(ae, &ae_mask, GET_MAX_ACCELENGINES(accel_dev)) {
+		ret = adf_send_admin(accel_dev, &req, &resp, 1ULL << ae);
+		if (ret)
+			return ret;
+
+		*capabilities |= resp.extended_features;
+	}
+
+	return 0;
+}
+
 /**
  * adf_send_admin_init() - Function sends init message to FW
  * @accel_dev: Pointer to acceleration device.
@@ -204,8 +233,16 @@ static int adf_set_fw_constants(struct adf_accel_dev *accel_dev)
  */
 int adf_send_admin_init(struct adf_accel_dev *accel_dev)
 {
+	u32 dc_capabilities = 0;
 	int ret;
 
+	ret = adf_get_dc_capabilities(accel_dev, &dc_capabilities);
+	if (ret) {
+		dev_err(&GET_DEV(accel_dev), "Cannot get dc capabilities\n");
+		return ret;
+	}
+	accel_dev->hw_device->extended_dc_capabilities = dc_capabilities;
+
 	ret = adf_set_fw_constants(accel_dev);
 	if (ret)
 		return ret;

drivers/crypto/qat/qat_common/icp_qat_fw_init_admin.h

@@ -14,7 +14,8 @@ enum icp_qat_fw_init_admin_cmd_id {
 	ICP_QAT_FW_COUNTERS_GET = 5,
 	ICP_QAT_FW_LOOPBACK = 6,
 	ICP_QAT_FW_HEARTBEAT_SYNC = 7,
-	ICP_QAT_FW_HEARTBEAT_GET = 8
+	ICP_QAT_FW_HEARTBEAT_GET = 8,
+	ICP_QAT_FW_COMP_CAPABILITY_GET = 9,
 };
 
 enum icp_qat_fw_init_admin_resp_status {
@@ -52,6 +53,7 @@ struct icp_qat_fw_init_admin_resp {
 			__u16 version_minor_num;
 			__u16 version_major_num;
 		};
+		__u32 extended_features;
 	};
 	__u64 opaque_data;
 	union {