From c35c76c6919ebcaac590f5f3afa6b8924ad305f4 Mon Sep 17 00:00:00 2001
From: Marco Chiappero <marco.chiappero@intel.com>
Date: Wed, 17 Nov 2021 14:30:55 +0000
Subject: [PATCH] crypto: qat - refactor pfvf version request messages
Git-commit: c35c76c6919ebcaac590f5f3afa6b8924ad305f4
Patch-mainline: v5.17-rc1
References: jsc#PED-1073
Refactor version handling logic for ADF_VF2PF_MSGTYPE_COMPAT_VER_REQ
and ADF_VF2PF_MSGTYPE_VERSION_REQ on the PF.
Response messages are now filled only after fully parsing the request,
in a consisted way with the rest of the PFVF codebase.
This patch also fixes a harmless double setting for VERSION in the
response for ADF_VF2PF_MSGTYPE_VERSION_REQ.
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>
Signed-off-by: Torsten Duwe <duwe@suse.de>
---
.../crypto/qat/qat_common/adf_pfvf_pf_proto.c | 42 ++++++++++---------
1 file changed, 23 insertions(+), 19 deletions(-)
diff --git a/drivers/crypto/qat/qat_common/adf_pfvf_pf_proto.c b/drivers/crypto/qat/qat_common/adf_pfvf_pf_proto.c
index ac6a54cf17f6d..c0844fbd896c0 100644
--- a/drivers/crypto/qat/qat_common/adf_pfvf_pf_proto.c
+++ b/drivers/crypto/qat/qat_common/adf_pfvf_pf_proto.c
@@ -47,12 +47,7 @@ static int adf_handle_vf2pf_msg(struct adf_accel_dev *accel_dev, u32 vf_nr,
case ADF_VF2PF_MSGTYPE_COMPAT_VER_REQ:
{
u8 vf_compat_ver = msg >> ADF_VF2PF_COMPAT_VER_REQ_SHIFT;
-
- resp = (ADF_PF2VF_MSGORIGIN_SYSTEM |
- (ADF_PF2VF_MSGTYPE_VERSION_RESP <<
- ADF_PF2VF_MSGTYPE_SHIFT) |
- (ADF_PFVF_COMPAT_THIS_VERSION <<
- ADF_PF2VF_VERSION_RESP_VERS_SHIFT));
+ u8 compat;
dev_dbg(&GET_DEV(accel_dev),
"Compatibility Version Request from VF%d vers=%u\n",
@@ -62,37 +57,46 @@ static int adf_handle_vf2pf_msg(struct adf_accel_dev *accel_dev, u32 vf_nr,
dev_err(&GET_DEV(accel_dev),
"VF (vers %d) incompatible with PF (vers %d)\n",
vf_compat_ver, ADF_PFVF_COMPAT_THIS_VERSION);
- resp |= ADF_PF2VF_VF_INCOMPATIBLE <<
- ADF_PF2VF_VERSION_RESP_RESULT_SHIFT;
+ compat = ADF_PF2VF_VF_INCOMPATIBLE;
} else if (vf_compat_ver > ADF_PFVF_COMPAT_THIS_VERSION) {
dev_err(&GET_DEV(accel_dev),
"VF (vers %d) compat with PF (vers %d) unkn.\n",
vf_compat_ver, ADF_PFVF_COMPAT_THIS_VERSION);
- resp |= ADF_PF2VF_VF_COMPAT_UNKNOWN <<
- ADF_PF2VF_VERSION_RESP_RESULT_SHIFT;
+ compat = ADF_PF2VF_VF_COMPAT_UNKNOWN;
} else {
dev_dbg(&GET_DEV(accel_dev),
"VF (vers %d) compatible with PF (vers %d)\n",
vf_compat_ver, ADF_PFVF_COMPAT_THIS_VERSION);
- resp |= ADF_PF2VF_VF_COMPATIBLE <<
- ADF_PF2VF_VERSION_RESP_RESULT_SHIFT;
+ compat = ADF_PF2VF_VF_COMPATIBLE;
}
+
+ resp = ADF_PF2VF_MSGORIGIN_SYSTEM;
+ resp |= ADF_PF2VF_MSGTYPE_VERSION_RESP <<
+ ADF_PF2VF_MSGTYPE_SHIFT;
+ resp |= ADF_PFVF_COMPAT_THIS_VERSION <<
+ ADF_PF2VF_VERSION_RESP_VERS_SHIFT;
+ resp |= compat << ADF_PF2VF_VERSION_RESP_RESULT_SHIFT;
}
break;
case ADF_VF2PF_MSGTYPE_VERSION_REQ:
+ {
+ u8 compat;
+
dev_dbg(&GET_DEV(accel_dev),
"Legacy VersionRequest received from VF%d 0x%x\n",
vf_nr + 1, msg);
- resp = (ADF_PF2VF_MSGORIGIN_SYSTEM |
- (ADF_PF2VF_MSGTYPE_VERSION_RESP <<
- ADF_PF2VF_MSGTYPE_SHIFT) |
- (ADF_PFVF_COMPAT_THIS_VERSION <<
- ADF_PF2VF_VERSION_RESP_VERS_SHIFT));
- resp |= ADF_PF2VF_VF_COMPATIBLE <<
- ADF_PF2VF_VERSION_RESP_RESULT_SHIFT;
+
+ /* PF always newer than legacy VF */
+ compat = ADF_PF2VF_VF_COMPATIBLE;
+
+ resp = ADF_PF2VF_MSGORIGIN_SYSTEM;
+ resp |= ADF_PF2VF_MSGTYPE_VERSION_RESP <<
+ ADF_PF2VF_MSGTYPE_SHIFT;
/* Set legacy major and minor version num */
resp |= 1 << ADF_PF2VF_MAJORVERSION_SHIFT |
1 << ADF_PF2VF_MINORVERSION_SHIFT;
+ resp |= compat << ADF_PF2VF_VERSION_RESP_RESULT_SHIFT;
+ }
break;
case ADF_VF2PF_MSGTYPE_INIT:
{
--
2.35.3