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From: Xin Zeng <xin.zeng@intel.com>
To: herbert@gondor.apana.org.au,
	alex.williamson@redhat.com,
	jgg@nvidia.com,
	yishaih@nvidia.com,
	shameerali.kolothum.thodi@huawei.com,
	kevin.tian@intel.com
Cc: linux-crypto@vger.kernel.org,
	kvm@vger.kernel.org,
	qat-linux@intel.com,
	Xin Zeng <xin.zeng@intel.com>
Subject: [PATCH 03/10] crypto: qat - move PFVF compat checker to a function
Date: Thu,  1 Feb 2024 23:33:30 +0800
Message-Id: <20240201153337.4033490-4-xin.zeng@intel.com>
In-Reply-To: <20240201153337.4033490-1-xin.zeng@intel.com>
References: <20240201153337.4033490-1-xin.zeng@intel.com>
Precedence: bulk

Move the code that implements VF version compatibility on the PF side to
a separate function so that it can be reused when doing VM live
migration.

This does not introduce any functional change.

Signed-off-by: Xin Zeng <xin.zeng@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
---
 .../crypto/intel/qat/qat_common/adf_pfvf_pf_proto.c   |  8 +-------
 drivers/crypto/intel/qat/qat_common/adf_pfvf_utils.h  | 11 +++++++++++
 2 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/drivers/crypto/intel/qat/qat_common/adf_pfvf_pf_proto.c b/drivers/crypto/intel/qat/qat_common/adf_pfvf_pf_proto.c
index 388e58bcbcaf..d737d07937c7 100644
--- a/drivers/crypto/intel/qat/qat_common/adf_pfvf_pf_proto.c
+++ b/drivers/crypto/intel/qat/qat_common/adf_pfvf_pf_proto.c
@@ -242,13 +242,7 @@ static int adf_handle_vf2pf_msg(struct adf_accel_dev *accel_dev, u8 vf_nr,
 			"VersionRequest received from VF%d (vers %d) to PF (vers %d)\n",
 			vf_nr, vf_compat_ver, ADF_PFVF_COMPAT_THIS_VERSION);
 
-		if (vf_compat_ver == 0)
-			compat = ADF_PF2VF_VF_INCOMPATIBLE;
-		else if (vf_compat_ver <= ADF_PFVF_COMPAT_THIS_VERSION)
-			compat = ADF_PF2VF_VF_COMPATIBLE;
-		else
-			compat = ADF_PF2VF_VF_COMPAT_UNKNOWN;
-
+		compat = adf_vf_compat_checker(vf_compat_ver);
 		vf_info->vf_compat_ver = vf_compat_ver;
 
 		resp->type = ADF_PF2VF_MSGTYPE_VERSION_RESP;
diff --git a/drivers/crypto/intel/qat/qat_common/adf_pfvf_utils.h b/drivers/crypto/intel/qat/qat_common/adf_pfvf_utils.h
index 2be048e2287b..1a044297d873 100644
--- a/drivers/crypto/intel/qat/qat_common/adf_pfvf_utils.h
+++ b/drivers/crypto/intel/qat/qat_common/adf_pfvf_utils.h
@@ -28,4 +28,15 @@ u32 adf_pfvf_csr_msg_of(struct adf_accel_dev *accel_dev, struct pfvf_message msg
 struct pfvf_message adf_pfvf_message_of(struct adf_accel_dev *accel_dev, u32 raw_msg,
 					const struct pfvf_csr_format *fmt);
 
+static inline u8 adf_vf_compat_checker(u8 vf_compat_ver)
+{
+	if (vf_compat_ver == 0)
+		return ADF_PF2VF_VF_INCOMPATIBLE;
+
+	if (vf_compat_ver <= ADF_PFVF_COMPAT_THIS_VERSION)
+		return ADF_PF2VF_VF_COMPATIBLE;
+
+	return ADF_PF2VF_VF_COMPAT_UNKNOWN;
+}
+
 #endif /* ADF_PFVF_UTILS_H */
-- 
2.18.2