Add intel_QAT patches

Add community compatibility patches for Intel QAT
Due to incompatibility with higher kernel versions.

Also includes basic instructions.

Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Kjeld Schouten-Lebbing <[email protected]>
Closes #10961 
Closes #10962 

5 files changed, 129 insertions, 0 deletions

diff --git a/contrib/intel_qat/patch/0001-cryptohash.diff b/contrib/intel_qat/patch/0001-cryptohash.diff
new file mode 100644
index 000000000..2d87c8f36
--- /dev/null
+++ b/contrib/intel_qat/patch/0001-cryptohash.diff
@@ -0,0 +1,17 @@
+cryptohash.h was dropped and merged with crypto/sha.sh in 5.8 kernel. Details in:
+https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=228c4f265c6eb60eaa4ed0edb3bf7c113173576c
+
+---
+diff --git a/quickassist/utilities/osal/src/linux/kernel_space/OsalCryptoInterface.c b/quickassist/utilities/osal/src/linux/kernel_space/OsalCryptoInterface.c
+index 4c389da..e602377 100644
+--- a/quickassist/utilities/osal/src/linux/kernel_space/OsalCryptoInterface.c
++++ b/quickassist/utilities/osal/src/linux/kernel_space/OsalCryptoInterface.c
+@@ -66,7 +66,7 @@
+ 
+ #include "Osal.h"
+ #include <linux/crypto.h>
+-#include <linux/cryptohash.h>
++#include <crypto/sha.h>
+ #include <linux/version.h>
+ #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29))
+ #include <crypto/internal/hash.h>
diff --git a/contrib/intel_qat/patch/0001-pci_aer.diff b/contrib/intel_qat/patch/0001-pci_aer.diff
new file mode 100644
index 000000000..7516ac4fe
--- /dev/null
+++ b/contrib/intel_qat/patch/0001-pci_aer.diff
@@ -0,0 +1,20 @@
+In kernel 5.7 the pci_cleanup_aer_uncorrect_error_status() function was
+renamed with the following commit:
+
+git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=894020fdd88c1e9a74c60b67c0f19f1c7696ba2f
+
+This simply updates the function call with the proper name (pci_aer_clear_nonfatal_status()).
+
+---
+diff --git a/quickassist/qat/drivers/crypto/qat/qat_common/adf_aer.c b/quickassist/qat/drivers/crypto/qat/qat_common/adf_aer.c
+index a6ce6df..545bb79 100644
+--- a/quickassist/qat/drivers/crypto/qat/qat_common/adf_aer.c
++++ b/quickassist/qat/drivers/crypto/qat/qat_common/adf_aer.c
+@@ -304,7 +304,7 @@ static pci_ers_result_t adf_slot_reset(struct pci_dev *pdev)
+ 		pr_err("QAT: Can't find acceleration device\n");
+ 		return PCI_ERS_RESULT_DISCONNECT;
+ 	}
+-	pci_cleanup_aer_uncorrect_error_status(pdev);
++	pci_aer_clear_nonfatal_status(pdev);
+ 	if (adf_dev_aer_schedule_reset(accel_dev, ADF_DEV_RESET_SYNC))
+ 		return PCI_ERS_RESULT_DISCONNECT;
diff --git a/contrib/intel_qat/patch/0001-timespec.diff b/contrib/intel_qat/patch/0001-timespec.diff
new file mode 100644
index 000000000..04fb053e1
--- /dev/null
+++ b/contrib/intel_qat/patch/0001-timespec.diff
@@ -0,0 +1,35 @@
+This patch attempts to expose timespec and getnstimeofday which were
+explicitly hidden in the 5.6 kernel with the introduction of the
+following commits:
+
+git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c766d1472c70d25ad475cf56042af1652e792b23
+git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=412c53a680a97cb1ae2c0ab60230e193bee86387
+
+Code received from [email protected], issue tracked under QATE-59888.
+
+---
+diff --git a/quickassist/lookaside/access_layer/src/sample_code/performance/framework/linux/kernel_space/cpa_sample_code_utils.c b/quickassist/lookaside/access_layer/src/sample_code/performance/framework/linux/kernel_space/cpa_sample_code_utils.c
+index 4639834..523e376 100644
+--- a/quickassist/lookaside/access_layer/src/sample_code/performance/framework/linux/kernel_space/cpa_sample_code_utils.c
++++ b/quickassist/lookaside/access_layer/src/sample_code/performance/framework/linux/kernel_space/cpa_sample_code_utils.c
+@@ -107,6 +107,8 @@ atomic_t arrived;
+ extern struct device perf_device;
+ #endif
+ 
++#define timespec timespec64
++#define getnstimeofday ktime_get_real_ts64
+ 
+ /* Define a number for timeout */
+ #define SAMPLE_CODE_MAX_LONG (0x7FFFFFFF)
+diff --git a/quickassist/qat/compat/qat_compat.h b/quickassist/qat/compat/qat_compat.h
+index 2a02eaf..3515092 100644
+--- a/quickassist/qat/compat/qat_compat.h
++++ b/quickassist/qat/compat/qat_compat.h
+@@ -466,4 +466,7 @@ static inline void pci_ignore_hotplug(struct pci_dev *dev)
+ #if (RHEL_RELEASE_CODE && RHEL_RELEASE_VERSION(7, 3) <= RHEL_RELEASE_CODE)
+ #define QAT_KPT_CAP_DISCOVERY
+ #endif
++
++#define timespec timespec64
++#define getnstimeofday ktime_get_real_ts64
+ #endif /* _QAT_COMPAT_H_ */
diff --git a/contrib/intel_qat/patch/LICENSE b/contrib/intel_qat/patch/LICENSE
new file mode 100644
index 000000000..8e12726c0
--- /dev/null
+++ b/contrib/intel_qat/patch/LICENSE
@@ -0,0 +1,30 @@
+BSD LICENSE
+
+Copyright (c) Intel Corporation.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+  * Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+  * Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in
+    the documentation and/or other materials provided with the
+    distribution.
+  * Neither the name of Intel Corporation nor the names of its
+    contributors may be used to endorse or promote products derived
+    from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/contrib/intel_qat/readme.md b/contrib/intel_qat/readme.md
new file mode 100644
index 000000000..7e45d395b
--- /dev/null
+++ b/contrib/intel_qat/readme.md
@@ -0,0 +1,27 @@
+# Intel_QAT easy install script
+
+This contrib contains community compatibility patches to get Intel QAT working on the following kernel versions:
+- 5.6
+- 5.7
+- 5.8
+
+These patches are based on the following Intel QAT version:
+[1.7.l.4.10.0-00014](https://01.org/sites/default/files/downloads/qat1.7.l.4.10.0-00014.tar.gz)
+
+When using QAT with above kernels versions, the following patches needs to be applied using:
+patch -p1 < _$PATCH_
+_Where $PATCH refers to the path of the patch in question_
+
+### 5.6
+/patch/0001-timespec.diff
+
+### 5.7
+/patch/0001-pci_aer.diff
+
+### 5.8
+/patch/0001-cryptohash.diff
+
+
+_Patches are supplied by [Storage Performance Development Kit (SPDK)](https://github.com/spdk/spdk)_
+
+