Introduce BLAKE3 checksums as an OpenZFS feature

This commit adds BLAKE3 checksums to OpenZFS, it has similar
performance to Edon-R, but without the caveats around the latter.

Homepage of BLAKE3: https://github.com/BLAKE3-team/BLAKE3
Wikipedia: https://en.wikipedia.org/wiki/BLAKE_(hash_function)#BLAKE3

Short description of Wikipedia:

  BLAKE3 is a cryptographic hash function based on Bao and BLAKE2,
  created by Jack O'Connor, Jean-Philippe Aumasson, Samuel Neves, and
  Zooko Wilcox-O'Hearn. It was announced on January 9, 2020, at Real
  World Crypto. BLAKE3 is a single algorithm with many desirable
  features (parallelism, XOF, KDF, PRF and MAC), in contrast to BLAKE
  and BLAKE2, which are algorithm families with multiple variants.
  BLAKE3 has a binary tree structure, so it supports a practically
  unlimited degree of parallelism (both SIMD and multithreading) given
  enough input. The official Rust and C implementations are
  dual-licensed as public domain (CC0) and the Apache License.

Along with adding the BLAKE3 hash into the OpenZFS infrastructure a
new benchmarking file called chksum_bench was introduced.  When read
it reports the speed of the available checksum functions.

On Linux: cat /proc/spl/kstat/zfs/chksum_bench
On FreeBSD: sysctl kstat.zfs.misc.chksum_bench

This is an example output of an i3-1005G1 test system with Debian 11:

implementation      1k      4k     16k     64k    256k      1m      4m
edonr-generic     1196    1602    1761    1749    1762    1759    1751
skein-generic      546     591     608     615     619     612     616
sha256-generic     240     300     316     314     304     285     276
sha512-generic     353     441     467     476     472     467     426
blake3-generic     308     313     313     313     312     313     312
blake3-sse2        402    1289    1423    1446    1432    1458    1413
blake3-sse41       427    1470    1625    1704    1679    1607    1629
blake3-avx2        428    1920    3095    3343    3356    3318    3204
blake3-avx512      473    2687    4905    5836    5844    5643    5374

Output on Debian 5.10.0-10-amd64 system: (Ryzen 7 5800X)

implementation      1k      4k     16k     64k    256k      1m      4m
edonr-generic     1840    2458    2665    2719    2711    2723    2693
skein-generic      870     966     996     992    1003    1005    1009
sha256-generic     415     442     453     455     457     457     457
sha512-generic     608     690     711     718     719     720     721
blake3-generic     301     313     311     309     309     310     310
blake3-sse2        343    1865    2124    2188    2180    2181    2186
blake3-sse41       364    2091    2396    2509    2463    2482    2488
blake3-avx2        365    2590    4399    4971    4915    4802    4764

Output on Debian 5.10.0-9-powerpc64le system: (POWER 9)

implementation      1k      4k     16k     64k    256k      1m      4m
edonr-generic     1213    1703    1889    1918    1957    1902    1907
skein-generic      434     492     520     522     511     525     525
sha256-generic     167     183     187     188     188     187     188
sha512-generic     186     216     222     221     225     224     224
blake3-generic     153     152     154     153     151     153     153
blake3-sse2        391    1170    1366    1406    1428    1426    1414
blake3-sse41       352    1049    1212    1174    1262    1258    1259

Output on Debian 5.10.0-11-arm64 system: (Pi400)

implementation      1k      4k     16k     64k    256k      1m      4m
edonr-generic      487     603     629     639     643     641     641
skein-generic      271     299     303     308     309     309     307
sha256-generic     117     127     128     130     130     129     130
sha512-generic     145     165     170     172     173     174     175
blake3-generic      81      29      71      89      89      89      89
blake3-sse2        112     323     368     379     380     371     374
blake3-sse41       101     315     357     368     369     364     360

Structurally, the new code is mainly split into these parts:
- 1x cross platform generic c variant: blake3_generic.c
- 4x assembly for X86-64 (SSE2, SSE4.1, AVX2, AVX512)
- 2x assembly for ARMv8 (NEON converted from SSE2)
- 2x assembly for PPC64-LE (POWER8 converted from SSE2)
- one file for switching between the implementations

Note the PPC64 assembly requires the VSX instruction set and the
kfpu_begin() / kfpu_end() calls on PowerPC were updated accordingly.

Reviewed-by: Felix Dörre <[email protected]>
Reviewed-by: Ahelenia Ziemiańska <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Tino Reichardt <[email protected]>
Co-authored-by: Rich Ercolani <[email protected]>
Closes #10058
Closes #12918 

13 files changed, 617 insertions, 13 deletions

diff --git a/tests/zfs-tests/cmd/.gitignore b/tests/zfs-tests/cmd/.gitignore
index 1830cab76..20d138253 100644
--- a/tests/zfs-tests/cmd/.gitignore
+++ b/tests/zfs-tests/cmd/.gitignore
@@ -42,6 +42,7 @@
 /ereports
 /zfs_diff-socket
 /dosmode_readonly_write
+/blake3_test
 /edonr_test
 /skein_test
 /sha2_test
diff --git a/tests/zfs-tests/cmd/Makefile.am b/tests/zfs-tests/cmd/Makefile.am
index e3c9874dc..3c8faf5af 100644
--- a/tests/zfs-tests/cmd/Makefile.am
+++ b/tests/zfs-tests/cmd/Makefile.am
@@ -98,15 +98,19 @@ scripts_zfs_tests_bin_PROGRAMS += %D%/ereports
 	libzfs.la
 
 
-scripts_zfs_tests_bin_PROGRAMS += %D%/edonr_test %D%/skein_test %D%/sha2_test
+scripts_zfs_tests_bin_PROGRAMS += %D%/edonr_test %D%/skein_test \
+	%D%/sha2_test %D%/blake3_test
 %C%_skein_test_SOURCES = %D%/checksum/skein_test.c
 %C%_sha2_test_SOURCES  = %D%/checksum/sha2_test.c
 %C%_edonr_test_SOURCES = %D%/checksum/edonr_test.c
+%C%_blake3_test_SOURCES = %D%/checksum/blake3_test.c
 %C%_skein_test_LDADD = \
 	libicp.la \
+	libspl.la \
 	libspl_assert.la
 %C%_sha2_test_LDADD  = $(%C%_skein_test_LDADD)
 %C%_edonr_test_LDADD = $(%C%_skein_test_LDADD)
+%C%_blake3_test_LDADD = $(%C%_skein_test_LDADD)
 
 
 if BUILD_LINUX
diff --git a/tests/zfs-tests/cmd/checksum/blake3_test.c b/tests/zfs-tests/cmd/checksum/blake3_test.c
new file mode 100644
index 000000000..55d268f5f
--- /dev/null
+++ b/tests/zfs-tests/cmd/checksum/blake3_test.c
@@ -0,0 +1,575 @@
+
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright (c) 2022 Tino Reichardt <[email protected]>
+ */
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <sys/time.h>
+#include <sys/blake3.h>
+
+/*
+ * set it to a define for debugging
+ */
+#undef	BLAKE3_DEBUG
+
+/*
+ * C version of:
+ * https://github.com/BLAKE3-team/BLAKE3/tree/master/test_vectors
+ */
+typedef struct {
+	/* input length for this entry */
+	const int input_len;
+
+	/* hash value */
+	const char *hash;
+
+	/* salted hash value */
+	const char *shash;
+} blake3_test_t;
+
+/* BLAKE3 is variable here */
+#define	TEST_DIGEST_LEN 262
+
+/*
+ * key for the keyed hashing
+ */
+static const char *salt = "whats the Elvish word for friend";
+
+static blake3_test_t TestArray[] = {
+	{
+	    0,
+	    "af1349b9f5f9a1a6a0404dea36dcc9499bcb25c9adc112b7cc9a93cae41f3262e0"
+	    "0f03e7b69af26b7faaf09fcd333050338ddfe085b8cc869ca98b206c08243a26f5"
+	    "487789e8f660afe6c99ef9e0c52b92e7393024a80459cf91f476f9ffdbda7001c2"
+	    "2e159b402631f277ca96f2defdf1078282314e763699a31c5363165421cce14d",
+	    "92b2b75604ed3c761f9d6f62392c8a9227ad0ea3f09573e783f1498a4ed60d26b1"
+	    "8171a2f22a4b94822c701f107153dba24918c4bae4d2945c20ece13387627d3b73"
+	    "cbf97b797d5e59948c7ef788f54372df45e45e4293c7dc18c1d41144a9758be589"
+	    "60856be1eabbe22c2653190de560ca3b2ac4aa692a9210694254c371e851bc8f",
+	},
+	{
+	    1,
+	    "2d3adedff11b61f14c886e35afa036736dcd87a74d27b5c1510225d0f592e213c3"
+	    "a6cb8bf623e20cdb535f8d1a5ffb86342d9c0b64aca3bce1d31f60adfa137b358a"
+	    "d4d79f97b47c3d5e79f179df87a3b9776ef8325f8329886ba42f07fb138bb502f4"
+	    "081cbcec3195c5871e6c23e2cc97d3c69a613eba131e5f1351f3f1da786545e5",
+	    "6d7878dfff2f485635d39013278ae14f1454b8c0a3a2d34bc1ab38228a80c95b65"
+	    "68c0490609413006fbd428eb3fd14e7756d90f73a4725fad147f7bf70fd61c4e0c"
+	    "f7074885e92b0e3f125978b4154986d4fb202a3f331a3fb6cf349a3a70e49990f9"
+	    "8fe4289761c8602c4e6ab1138d31d3b62218078b2f3ba9a88e1d08d0dd4cea11",
+	},
+	{
+	    2,
+	    "7b7015bb92cf0b318037702a6cdd81dee41224f734684c2c122cd6359cb1ee63d8"
+	    "386b22e2ddc05836b7c1bb693d92af006deb5ffbc4c70fb44d0195d0c6f252faac"
+	    "61659ef86523aa16517f87cb5f1340e723756ab65efb2f91964e14391de2a43226"
+	    "3a6faf1d146937b35a33621c12d00be8223a7f1919cec0acd12097ff3ab00ab1",
+	    "5392ddae0e0a69d5f40160462cbd9bd889375082ff224ac9c758802b7a6fd20a9f"
+	    "fbf7efd13e989a6c246f96d3a96b9d279f2c4e63fb0bdff633957acf50ee1a5f65"
+	    "8be144bab0f6f16500dee4aa5967fc2c586d85a04caddec90fffb7633f46a60786"
+	    "024353b9e5cebe277fcd9514217fee2267dcda8f7b31697b7c54fab6a939bf8f",
+	},
+	{
+	    3,
+	    "e1be4d7a8ab5560aa4199eea339849ba8e293d55ca0a81006726d184519e647f5b"
+	    "49b82f805a538c68915c1ae8035c900fd1d4b13902920fd05e1450822f36de9454"
+	    "b7e9996de4900c8e723512883f93f4345f8a58bfe64ee38d3ad71ab027765d25cd"
+	    "d0e448328a8e7a683b9a6af8b0af94fa09010d9186890b096a08471e4230a134",
+	    "39e67b76b5a007d4921969779fe666da67b5213b096084ab674742f0d5ec62b9b9"
+	    "142d0fab08e1b161efdbb28d18afc64d8f72160c958e53a950cdecf91c1a1bbab1"
+	    "a9c0f01def762a77e2e8545d4dec241e98a89b6db2e9a5b070fc110caae2622690"
+	    "bd7b76c02ab60750a3ea75426a6bb8803c370ffe465f07fb57def95df772c39f",
+	},
+	{
+	    4,
+	    "f30f5ab28fe047904037f77b6da4fea1e27241c5d132638d8bedce9d40494f328f"
+	    "603ba4564453e06cdcee6cbe728a4519bbe6f0d41e8a14b5b225174a566dbfa61b"
+	    "56afb1e452dc08c804f8c3143c9e2cc4a31bb738bf8c1917b55830c6e657972117"
+	    "01dc0b98daa1faeaa6ee9e56ab606ce03a1a881e8f14e87a4acf4646272cfd12",
+	    "7671dde590c95d5ac9616651ff5aa0a27bee5913a348e053b8aa9108917fe07011"
+	    "6c0acff3f0d1fa97ab38d813fd46506089118147d83393019b068a55d646251ecf"
+	    "81105f798d76a10ae413f3d925787d6216a7eb444e510fd56916f1d753a5544ecf"
+	    "0072134a146b2615b42f50c179f56b8fae0788008e3e27c67482349e249cb86a",
+	},
+	{
+	    5,
+	    "b40b44dfd97e7a84a996a91af8b85188c66c126940ba7aad2e7ae6b385402aa2eb"
+	    "cfdac6c5d32c31209e1f81a454751280db64942ce395104e1e4eaca62607de1c2c"
+	    "a748251754ea5bbe8c20150e7f47efd57012c63b3c6a6632dc1c7cd15f3e1c9999"
+	    "04037d60fac2eb9397f2adbe458d7f264e64f1e73aa927b30988e2aed2f03620",
+	    "73ac69eecf286894d8102018a6fc729f4b1f4247d3703f69bdc6a5fe3e0c84616a"
+	    "b199d1f2f3e53bffb17f0a2209fe8b4f7d4c7bae59c2bc7d01f1ff94c67588cc6b"
+	    "38fa6024886f2c078bfe09b5d9e6584cd6c521c3bb52f4de7687b37117a2dbbec0"
+	    "d59e92fa9a8cc3240d4432f91757aabcae03e87431dac003e7d73574bfdd8218",
+	},
+	{
+	    6,
+	    "06c4e8ffb6872fad96f9aaca5eee1553eb62aed0ad7198cef42e87f6a616c84461"
+	    "1a30c4e4f37fe2fe23c0883cde5cf7059d88b657c7ed2087e3d210925ede716435"
+	    "d6d5d82597a1e52b9553919e804f5656278bd739880692c94bff2824d8e0b48cac"
+	    "1d24682699e4883389dc4f2faa2eb3b4db6e39debd5061ff3609916f3e07529a",
+	    "82d3199d0013035682cc7f2a399d4c212544376a839aa863a0f4c91220ca7a6dc2"
+	    "ffb3aa05f2631f0fa9ac19b6e97eb7e6669e5ec254799350c8b8d189e880780084"
+	    "2a5383c4d907c932f34490aaf00064de8cdb157357bde37c1504d2960034930887"
+	    "603abc5ccb9f5247f79224baff6120a3c622a46d7b1bcaee02c5025460941256",
+	},
+	{
+	    7,
+	    "3f8770f387faad08faa9d8414e9f449ac68e6ff0417f673f602a646a891419fe66"
+	    "036ef6e6d1a8f54baa9fed1fc11c77cfb9cff65bae915045027046ebe0c01bf5a9"
+	    "41f3bb0f73791d3fc0b84370f9f30af0cd5b0fc334dd61f70feb60dad785f070fe"
+	    "f1f343ed933b49a5ca0d16a503f599a365a4296739248b28d1a20b0e2cc8975c",
+	    "af0a7ec382aedc0cfd626e49e7628bc7a353a4cb108855541a5651bf64fbb28a7c"
+	    "5035ba0f48a9c73dabb2be0533d02e8fd5d0d5639a18b2803ba6bf527e1d145d5f"
+	    "d6406c437b79bcaad6c7bdf1cf4bd56a893c3eb9510335a7a798548c6753f74617"
+	    "bede88bef924ba4b334f8852476d90b26c5dc4c3668a2519266a562c6c8034a6",
+	},
+	{
+	    8,
+	    "2351207d04fc16ade43ccab08600939c7c1fa70a5c0aaca76063d04c3228eaeb72"
+	    "5d6d46ceed8f785ab9f2f9b06acfe398c6699c6129da084cb531177445a682894f"
+	    "9685eaf836999221d17c9a64a3a057000524cd2823986db378b074290a1a9b93a2"
+	    "2e135ed2c14c7e20c6d045cd00b903400374126676ea78874d79f2dd7883cf5c",
+	    "be2f5495c61cba1bb348a34948c004045e3bd4dae8f0fe82bf44d0da245a060048"
+	    "eb5e68ce6dea1eb0229e144f578b3aa7e9f4f85febd135df8525e6fe40c6f0340d"
+	    "13dd09b255ccd5112a94238f2be3c0b5b7ecde06580426a93e0708555a265305ab"
+	    "f86d874e34b4995b788e37a823491f25127a502fe0704baa6bfdf04e76c13276",
+	},
+	{
+	    63,
+	    "e9bc37a594daad83be9470df7f7b3798297c3d834ce80ba85d6e207627b7db7b11"
+	    "97012b1e7d9af4d7cb7bdd1f3bb49a90a9b5dec3ea2bbc6eaebce77f4e470cbf46"
+	    "87093b5352f04e4a4570fba233164e6acc36900e35d185886a827f7ea9bdc1e5c3"
+	    "ce88b095a200e62c10c043b3e9bc6cb9b6ac4dfa51794b02ace9f98779040755",
+	    "bb1eb5d4afa793c1ebdd9fb08def6c36d10096986ae0cfe148cd101170ce37aea0"
+	    "5a63d74a840aecd514f654f080e51ac50fd617d22610d91780fe6b07a26b0847ab"
+	    "b38291058c97474ef6ddd190d30fc318185c09ca1589d2024f0a6f16d45f116783"
+	    "77483fa5c005b2a107cb9943e5da634e7046855eaa888663de55d6471371d55d",
+	},
+	{
+	    64,
+	    "4eed7141ea4a5cd4b788606bd23f46e212af9cacebacdc7d1f4c6dc7f2511b98fc"
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+	    "bb5b97592d46ffe3e05a6a9b592e2949c74160e4674301bc3f97e04903f8c6cf95"
+	    "b863174c33228924cdef7ae47559b10b294acd660666c4538833582b43f82d74",
+	    "ba8ced36f327700d213f120b1a207a3b8c04330528586f414d09f2f7d9ccb7e682"
+	    "44c26010afc3f762615bbac552a1ca909e67c83e2fd5478cf46b9e811efccc93f7"
+	    "7a21b17a152ebaca1695733fdb086e23cd0eb48c41c034d52523fc21236e5d8c92"
+	    "55306e48d52ba40b4dac24256460d56573d1312319afcf3ed39d72d0bfc69acb",
+	},
+	{
+	    65,
+	    "de1e5fa0be70df6d2be8fffd0e99ceaa8eb6e8c93a63f2d8d1c30ecb6b263dee0e"
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+	    "a227faaaaf7757cc95b4e87a49be3b8a270a12020233509b1c3632b3485eef309d"
+	    "0abc4a4a696c9decc6e90454b53b000f456a3f10079072baaf7a981653221f2c",
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+	    "e795f46a596b02d3d4bfb43abad1e5d19211152722ec1f20fef2cd413e3c22f2fc"
+	    "5da3d73041275be6ede3517b3b9f0fc67ade5956a672b8b75d96cb43294b904149"
+	    "7de92637ed3f2439225e683910cb3ae923374449ca788fb0f9bea92731bc26ad",
+	},
+	{
+	    127,
+	    "d81293fda863f008c09e92fc382a81f5a0b4a1251cba1634016a0f86a6bd640de3"
+	    "137d477156d1fde56b0cf36f8ef18b44b2d79897bece12227539ac9ae0a5119da4"
+	    "7644d934d26e74dc316145dcb8bb69ac3f2e05c242dd6ee06484fcb0e956dc4435"
+	    "5b452c5e2bbb5e2b66e99f5dd443d0cbcaaafd4beebaed24ae2f8bb672bcef78",
+	    "c64200ae7dfaf35577ac5a9521c47863fb71514a3bcad18819218b818de85818ee"
+	    "7a317aaccc1458f78d6f65f3427ec97d9c0adb0d6dacd4471374b621b7b5f35cd5"
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+	    "135cbadb9875c2bf8d3ae6b02f8a0206aba0c35bfe42574011931c9a255ce6dc",
+	},
+	{
+	    128,
+	    "f17e570564b26578c33bb7f44643f539624b05df1a76c81f30acd548c44b45efa6"
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+	    "1c59dab908c04c3342b816941a26d69c2605ebee5ec5291cc55e15b76146e6745f"
+	    "0601156c3596cb75065a9c57f35585a52e1ac70f69131c23d611ce11ee4ab1ec2c"
+	    "009012d236648e77be9295dd0426f29b764d65de58eb7d01dd42248204f45f8e",
+	    "1c35d1a5811083fd7119f5d5d1ba027b4d01c0c6c49fb6ff2cf75393ea5db4a7f9"
+	    "dbdd3e1d81dcbca3ba241bb18760f207710b751846faaeb9dff8262710999a59b2"
+	    "aa1aca298a032d94eacfadf1aa192418eb54808db23b56e34213266aa08499a16b"
+	    "354f018fc4967d05f8b9d2ad87a7278337be9693fc638a3bfdbe314574ee6fc4",
+	},
+	{
+	    0, 0, 0
+	}
+};
+
+#ifdef BLAKE3_DEBUG
+#define	dprintf printf
+#else
+#define	dprintf(...)
+#endif
+
+static char fmt_tohex(char c);
+static size_t fmt_hexdump(char *dest, const char *src, size_t len);
+
+static char fmt_tohex(char c) {
+	return ((char)(c >= 10 ? c-10+'a' : c+'0'));
+}
+
+static size_t fmt_hexdump(char *dest, const char *src, size_t len) {
+	register const unsigned char *s = (const unsigned char *) src;
+	size_t written = 0, i;
+
+	if (!dest)
+		return ((len > ((size_t)-1)/2) ? (size_t)-1 : len*2);
+	for (i = 0; i < len; ++i) {
+		dest[written] = fmt_tohex(s[i]>>4);
+		dest[written+1] = fmt_tohex(s[i]&15);
+		written += 2;
+	}
+
+	return (written);
+}
+
+int
+main(int argc, char *argv[])
+{
+	boolean_t failed = B_FALSE;
+	uint8_t buffer[102400];
+	uint64_t cpu_mhz = 0;
+	int id, i, j;
+
+	if (argc == 2)
+		cpu_mhz = atoi(argv[1]);
+
+	/* fill test message */
+	for (i = 0, j = 0; i < sizeof (buffer); i++, j++) {
+		if (j == 251)
+			j = 0;
+		buffer[i] = (uint8_t)j;
+	}
+
+	(void) printf("Running algorithm correctness tests:\n");
+	for (id = 0; id < blake3_get_impl_count(); id++) {
+		blake3_set_impl_id(id);
+		const char *name = blake3_get_impl_name();
+		dprintf("Result for BLAKE3-%s:\n", name);
+		for (i = 0; TestArray[i].hash; i++) {
+			blake3_test_t *cur = &TestArray[i];
+
+			BLAKE3_CTX ctx;
+			uint8_t digest[TEST_DIGEST_LEN];
+			char result[TEST_DIGEST_LEN];
+
+			/* default hashing */
+			Blake3_Init(&ctx);
+			Blake3_Update(&ctx, buffer, cur->input_len);
+			Blake3_FinalSeek(&ctx, 0, digest, TEST_DIGEST_LEN);
+			fmt_hexdump(result, (char *)digest, 131);
+			if (memcmp(result, cur->hash, 131) != 0)
+				failed = B_TRUE;
+
+			dprintf("HASH-res:  %s\n", result);
+			dprintf("HASH-ref:  %s\n", cur->hash);
+
+			/* salted hashing */
+			Blake3_InitKeyed(&ctx, (const uint8_t *)salt);
+			Blake3_Update(&ctx, buffer, cur->input_len);
+			Blake3_FinalSeek(&ctx, 0, digest, TEST_DIGEST_LEN);
+			fmt_hexdump(result, (char *)digest, 131);
+			if (memcmp(result, cur->shash, 131) != 0)
+				failed = B_TRUE;
+
+			dprintf("SHASH-res: %s\n", result);
+			dprintf("SHASH-ref: %s\n", cur->shash);
+
+			printf("BLAKE3-%s Message (inlen=%d)\tResult: %s\n",
+			    name, cur->input_len, failed?"FAILED!":"OK");
+		}
+	}
+
+	if (failed)
+		return (1);
+
+#define	BLAKE3_PERF_TEST(impl, diglen)					\
+	do {								\
+		BLAKE3_CTX	ctx;					\
+		uint8_t		digest[diglen / 8];			\
+		uint8_t		block[131072];				\
+		uint64_t	delta;					\
+		double		cpb = 0;				\
+		int		i;					\
+		struct timeval	start, end;				\
+		memset(block, 0, sizeof (block));			\
+		(void) gettimeofday(&start, NULL);			\
+		Blake3_Init(&ctx);					\
+		for (i = 0; i < 8192; i++)				\
+			Blake3_Update(&ctx, block, sizeof (block));	\
+		Blake3_Final(&ctx, digest);				\
+		(void) gettimeofday(&end, NULL);			\
+		delta = (end.tv_sec * 1000000llu + end.tv_usec) -	\
+		    (start.tv_sec * 1000000llu + start.tv_usec);	\
+		if (cpu_mhz != 0) {					\
+			cpb = (cpu_mhz * 1e6 * ((double)delta /		\
+			    1000000)) / (8192 * 128 * 1024);		\
+		}							\
+		(void) printf("BLAKE3-%s %llu us (%.02f CPB)\n", impl,	\
+		    (u_longlong_t)delta, cpb);				\
+	} while (0)
+
+	printf("Running performance tests (hashing 1024 MiB of data):\n");
+	for (id = 0; id < blake3_get_impl_count(); id++) {
+		blake3_set_impl_id(id);
+		const char *name = blake3_get_impl_name();
+		BLAKE3_PERF_TEST(name, 256);
+	}
+
+	return (0);
+}
diff --git a/tests/zfs-tests/cmd/checksum/edonr_test.c b/tests/zfs-tests/cmd/checksum/edonr_test.c
index c6365a414..3a0a48533 100644
--- a/tests/zfs-tests/cmd/checksum/edonr_test.c
+++ b/tests/zfs-tests/cmd/checksum/edonr_test.c
@@ -28,9 +28,6 @@
  * gettimeofday due to -D_KERNEL (we can do this since we're actually
  * running in userspace, but we need -D_KERNEL for the remaining Edon-R code).
  */
-#ifdef	_KERNEL
-#undef	_KERNEL
-#endif
 
 #include <sys/edonr.h>
 #include <stdlib.h>
diff --git a/tests/zfs-tests/cmd/checksum/sha2_test.c b/tests/zfs-tests/cmd/checksum/sha2_test.c
index dc4173e10..bb3553110 100644
--- a/tests/zfs-tests/cmd/checksum/sha2_test.c
+++ b/tests/zfs-tests/cmd/checksum/sha2_test.c
@@ -28,9 +28,6 @@
  * gettimeofday due to -D_KERNEL (we can do this since we're actually
  * running in userspace, but we need -D_KERNEL for the remaining SHA2 code).
  */
-#ifdef	_KERNEL
-#undef	_KERNEL
-#endif
 
 #include <stdarg.h>
 #include <stdlib.h>
diff --git a/tests/zfs-tests/cmd/checksum/skein_test.c b/tests/zfs-tests/cmd/checksum/skein_test.c
index 99b47b453..13611c860 100644
--- a/tests/zfs-tests/cmd/checksum/skein_test.c
+++ b/tests/zfs-tests/cmd/checksum/skein_test.c
@@ -28,9 +28,6 @@
  * gettimeofday due to -D_KERNEL (we can do this since we're actually
  * running in userspace, but we need -D_KERNEL for the remaining Skein code).
  */
-#ifdef	_KERNEL
-#undef	_KERNEL
-#endif
 
 #include <sys/skein.h>
 #include <stdlib.h>
diff --git a/tests/zfs-tests/include/commands.cfg b/tests/zfs-tests/include/commands.cfg
index 9dc2b4d0e..99430bc10 100644
--- a/tests/zfs-tests/include/commands.cfg
+++ b/tests/zfs-tests/include/commands.cfg
@@ -212,6 +212,7 @@ export ZFSTEST_FILES='badsend
     zed_fd_spill-zedlet
     suid_write_to_file
     cp_files
+    blake3_test
     edonr_test
     skein_test
     sha2_test
diff --git a/tests/zfs-tests/include/properties.shlib b/tests/zfs-tests/include/properties.shlib
index ba82f9620..14b3f4415 100644
--- a/tests/zfs-tests/include/properties.shlib
+++ b/tests/zfs-tests/include/properties.shlib
@@ -17,7 +17,7 @@
 
 typeset -a compress_prop_vals=('off' 'lzjb' 'lz4' 'gzip' 'zle' 'zstd')
 typeset -a checksum_prop_vals=('on' 'off' 'fletcher2' 'fletcher4' 'sha256'
-    'noparity' 'sha512' 'skein')
+    'noparity' 'sha512' 'skein' 'blake3')
 if ! is_freebsd; then
 	checksum_prop_vals+=('edonr')
 fi
diff --git a/tests/zfs-tests/tests/Makefile.am b/tests/zfs-tests/tests/Makefile.am
index a91a24d16..ffc087351 100644
--- a/tests/zfs-tests/tests/Makefile.am
+++ b/tests/zfs-tests/tests/Makefile.am
@@ -545,6 +545,7 @@ nobase_dist_datadir_zfs_tests_tests_SCRIPTS += \
 	functional/checksum/cleanup.ksh \
 	functional/checksum/filetest_001_pos.ksh \
 	functional/checksum/filetest_002_pos.ksh \
+	functional/checksum/run_blake3_test.ksh \
 	functional/checksum/run_edonr_test.ksh \
 	functional/checksum/run_sha2_test.ksh \
 	functional/checksum/run_skein_test.ksh \
diff --git a/tests/zfs-tests/tests/functional/checksum/default.cfg b/tests/zfs-tests/tests/functional/checksum/default.cfg
index afb956093..a7e143e75 100644
--- a/tests/zfs-tests/tests/functional/checksum/default.cfg
+++ b/tests/zfs-tests/tests/functional/checksum/default.cfg
@@ -30,4 +30,4 @@
 
 . $STF_SUITE/include/libtest.shlib
 
-set -A CHECKSUM_TYPES "fletcher2" "fletcher4" "sha256" "sha512" "skein" "edonr"
+set -A CHECKSUM_TYPES "fletcher2" "fletcher4" "blake3" "sha256" "sha512" "skein" "edonr"
diff --git a/tests/zfs-tests/tests/functional/checksum/run_blake3_test.ksh b/tests/zfs-tests/tests/functional/checksum/run_blake3_test.ksh
new file mode 100755
index 000000000..cf1ca7032
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/checksum/run_blake3_test.ksh
@@ -0,0 +1,30 @@
+#!/bin/ksh -p
+
+#
+# This file and its contents are supplied under the terms of the
+# Common Development and Distribution License ("CDDL"), version 1.0.
+# You may only use this file in accordance with the terms of version
+# 1.0 of the CDDL.
+#
+# A full copy of the text of the CDDL should have accompanied this
+# source.  A copy of the CDDL is also available via the Internet at
+# http://www.illumos.org/license/CDDL.
+#
+
+#
+# Copyright (c) 2015, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+
+#
+# Description:
+# Run the tests for the BLAKE3 hash algorithm.
+#
+
+log_assert "Run the tests for the BLAKE3 hash algorithm."
+
+freq=$(get_cpu_freq)
+log_must blake3_test $freq
+
+log_pass "BLAKE3 tests passed."
diff --git a/tests/zfs-tests/tests/functional/cli_root/zfs_set/checksum_001_pos.ksh b/tests/zfs-tests/tests/functional/cli_root/zfs_set/checksum_001_pos.ksh
index 27003b21b..cab7c185e 100755
--- a/tests/zfs-tests/tests/functional/cli_root/zfs_set/checksum_001_pos.ksh
+++ b/tests/zfs-tests/tests/functional/cli_root/zfs_set/checksum_001_pos.ksh
@@ -46,7 +46,7 @@
 verify_runnable "both"
 
 set -A dataset "$TESTPOOL" "$TESTPOOL/$TESTFS" "$TESTPOOL/$TESTVOL"
-set -A values "on" "off" "fletcher2" "fletcher4" "sha256" "sha512" "skein" "edonr" "noparity"
+set -A values "on" "off" "fletcher2" "fletcher4" "sha256" "sha512" "skein" "edonr" "blake3" "noparity"
 
 log_assert "Setting a valid checksum on a file system, volume," \
 	"it should be successful."
diff --git a/tests/zfs-tests/tests/functional/cli_root/zpool_get/zpool_get.cfg b/tests/zfs-tests/tests/functional/cli_root/zpool_get/zpool_get.cfg
index 4ea5725e0..7849ed226 100644
--- a/tests/zfs-tests/tests/functional/cli_root/zpool_get/zpool_get.cfg
+++ b/tests/zfs-tests/tests/functional/cli_root/zpool_get/zpool_get.cfg
@@ -99,5 +99,6 @@ if is_linux || is_freebsd; then
 	    "feature@zstd_compress"
 	    "feature@zilsaxattr"
 	    "feature@head_errlog"
+	    "feature@blake3"
 	)
 fi