From fab9516f02b418e37d3cde6c21c316085262aece Mon Sep 17 00:00:00 2001
From: Adam Guerin <adam.guerin@intel.com>
Date: Mon, 14 Aug 2023 16:52:30 +0100
Subject: [PATCH] crypto: qat - fix crypto capability detection for 4xxx
Git-commit: fab9516f02b418e37d3cde6c21c316085262aece
Patch-mainline: v6.6-rc1
References: PED-6401
When extending the capability detection logic for 4xxx devices the
SMx algorithms were accidentally missed.
Enable these SMx capabilities by default for QAT GEN4 devices.
Check for device variants where the SMx algorithms are explicitly
disabled by the GEN4 hardware. This is indicated in fusectl1
register.
Mask out SM3 and SM4 based on a bit specific to those algorithms.
Mask out SM2 if the PKE slice is not present.
Fixes: 4b44d28c715d ("crypto: qat - extend crypto capability detection for 4xxx")
Signed-off-by: Adam Guerin <adam.guerin@intel.com>
Reviewed-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>
Signed-off-by: Torsten Duwe <duwe@suse.de>
---
drivers/crypto/intel/qat/qat_4xxx/adf_4xxx_hw_data.c | 9 +++++++++
drivers/crypto/intel/qat/qat_common/icp_qat_hw.h | 5 ++++-
2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.c b/drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.c
index 268a1f7694fc..dd4464b7e00b 100644
--- a/drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.c
+++ b/drivers/crypto/qat/qat_4xxx/adf_4xxx_hw_data.c
@@ -225,6 +225,8 @@ static u32 get_accel_cap(struct adf_accel_dev *accel_dev)
ICP_ACCEL_CAPABILITIES_HKDF |
ICP_ACCEL_CAPABILITIES_CHACHA_POLY |
ICP_ACCEL_CAPABILITIES_AESGCM_SPC |
+ ICP_ACCEL_CAPABILITIES_SM3 |
+ ICP_ACCEL_CAPABILITIES_SM4 |
ICP_ACCEL_CAPABILITIES_AES_V2;
/* A set bit in fusectl1 means the feature is OFF in this SKU */
@@ -248,12 +250,19 @@ static u32 get_accel_cap(struct adf_accel_dev *accel_dev)
capabilities_sym &= ~ICP_ACCEL_CAPABILITIES_CIPHER;
}
+ if (fusectl1 & ICP_ACCEL_4XXX_MASK_SMX_SLICE) {
+ capabilities_sym &= ~ICP_ACCEL_CAPABILITIES_SM3;
+ capabilities_sym &= ~ICP_ACCEL_CAPABILITIES_SM4;
+ }
+
capabilities_asym = ICP_ACCEL_CAPABILITIES_CRYPTO_ASYMMETRIC |
ICP_ACCEL_CAPABILITIES_CIPHER |
+ ICP_ACCEL_CAPABILITIES_SM2 |
ICP_ACCEL_CAPABILITIES_ECEDMONT;
if (fusectl1 & ICP_ACCEL_4XXX_MASK_PKE_SLICE) {
capabilities_asym &= ~ICP_ACCEL_CAPABILITIES_CRYPTO_ASYMMETRIC;
+ capabilities_asym &= ~ICP_ACCEL_CAPABILITIES_SM2;
capabilities_asym &= ~ICP_ACCEL_CAPABILITIES_ECEDMONT;
}
diff --git a/drivers/crypto/qat/qat_common/icp_qat_hw.h b/drivers/crypto/qat/qat_common/icp_qat_hw.h
index a65059e56248..0c8883e2ccc6 100644
--- a/drivers/crypto/qat/qat_common/icp_qat_hw.h
+++ b/drivers/crypto/qat/qat_common/icp_qat_hw.h
@@ -97,7 +97,10 @@ enum icp_qat_capabilities_mask {
ICP_ACCEL_CAPABILITIES_SHA3_EXT = BIT(15),
ICP_ACCEL_CAPABILITIES_AESGCM_SPC = BIT(16),
ICP_ACCEL_CAPABILITIES_CHACHA_POLY = BIT(17),
- /* Bits 18-21 are currently reserved */
+ ICP_ACCEL_CAPABILITIES_SM2 = BIT(18),
+ ICP_ACCEL_CAPABILITIES_SM3 = BIT(19),
+ ICP_ACCEL_CAPABILITIES_SM4 = BIT(20),
+ /* Bit 21 is currently reserved */
ICP_ACCEL_CAPABILITIES_CNV_INTEGRITY = BIT(22),
ICP_ACCEL_CAPABILITIES_CNV_INTEGRITY64 = BIT(23),
ICP_ACCEL_CAPABILITIES_LZ4_COMPRESSION = BIT(24),
--
2.35.3