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go1.16 (#14783)

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techknowlogick 2021-02-28 18:08:33 -05:00 • committed by GitHub
parent 030646eea4
commit 47f6a4ec3f
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947 changed files with 26119 additions and 7062 deletions
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96
vendor/github.com/minio/md5-simd/md5-server_amd64.go generated vendored
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@ -10,8 +10,9 @@ import (
"encoding/binary"
"fmt"
"runtime"
"sync"
"github.com/klauspost/cpuid"
"github.com/klauspost/cpuid/v2"
)
// MD5 initialization constants
@ -23,6 +24,9 @@ const (
init1 = 0xefcdab89
init2 = 0x98badcfe
init3 = 0x10325476
// Use scalar routine when below this many lanes
useScalarBelow = 3
)
// md5ServerUID - Does not start at 0 but next multiple of 16 so as to be able to
@ -56,11 +60,15 @@ type md5Server struct {
maskRounds8b [8]maskRounds // Pre-allocated static array for max 8 rounds (2nd AVX2 core)
allBufs []byte // Preallocated buffer.
buffers chan []byte // Preallocated buffers, sliced from allBufs.
i8 [2][8][]byte // avx2 temporary vars
d8a, d8b digest8
wg sync.WaitGroup
}
// NewServer - Create new object for parallel processing handling
func NewServer() Server {
if !cpuid.CPU.AVX2() {
if !cpuid.CPU.Supports(cpuid.AVX2) {
return &fallbackServer{}
}
md5srv := &md5Server{}
@ -152,7 +160,7 @@ func (s *md5Server) process(newClients chan newClient) {
sum := sumResult{}
// Add end block to current digest.
blockGeneric(&dig, block.msg)
blockScalar(&dig.s, block.msg)
binary.LittleEndian.PutUint32(sum.digest[0:], dig.s[0])
binary.LittleEndian.PutUint32(sum.digest[4:], dig.s[1])
@ -262,6 +270,88 @@ func (s *md5Server) Close() {
// Invoke assembly and send results back
func (s *md5Server) blocks(lanes []blockInput) {
if len(lanes) < useScalarBelow {
// Use scalar routine when below this many lanes
switch len(lanes) {
case 0:
case 1:
lane := lanes[0]
var d digest
a, ok := s.digests[lane.uid]
if ok {
d.s[0] = binary.LittleEndian.Uint32(a[0:4])
d.s[1] = binary.LittleEndian.Uint32(a[4:8])
d.s[2] = binary.LittleEndian.Uint32(a[8:12])
d.s[3] = binary.LittleEndian.Uint32(a[12:16])
} else {
d.s[0] = init0
d.s[1] = init1
d.s[2] = init2
d.s[3] = init3
}
if len(lane.msg) > 0 {
// Update...
blockScalar(&d.s, lane.msg)
}
dig := [Size]byte{}
binary.LittleEndian.PutUint32(dig[0:], d.s[0])
binary.LittleEndian.PutUint32(dig[4:], d.s[1])
binary.LittleEndian.PutUint32(dig[8:], d.s[2])
binary.LittleEndian.PutUint32(dig[12:], d.s[3])
s.digests[lane.uid] = dig
if lane.msg != nil {
s.buffers <- lane.msg
}
lanes[0] = blockInput{}
default:
s.wg.Add(len(lanes))
var results [useScalarBelow]digest
for i := range lanes {
lane := lanes[i]
go func(i int) {
var d digest
defer s.wg.Done()
a, ok := s.digests[lane.uid]
if ok {
d.s[0] = binary.LittleEndian.Uint32(a[0:4])
d.s[1] = binary.LittleEndian.Uint32(a[4:8])
d.s[2] = binary.LittleEndian.Uint32(a[8:12])
d.s[3] = binary.LittleEndian.Uint32(a[12:16])
} else {
d.s[0] = init0
d.s[1] = init1
d.s[2] = init2
d.s[3] = init3
}
if len(lane.msg) == 0 {
results[i] = d
return
}
// Update...
blockScalar(&d.s, lane.msg)
results[i] = d
}(i)
}
s.wg.Wait()
for i, lane := range lanes {
dig := [Size]byte{}
binary.LittleEndian.PutUint32(dig[0:], results[i].s[0])
binary.LittleEndian.PutUint32(dig[4:], results[i].s[1])
binary.LittleEndian.PutUint32(dig[8:], results[i].s[2])
binary.LittleEndian.PutUint32(dig[12:], results[i].s[3])
s.digests[lane.uid] = dig
if lane.msg != nil {
s.buffers <- lane.msg
}
lanes[i] = blockInput{}
}
}
return
}
inputs := [16][]byte{}
for i := range lanes {
inputs[i] = lanes[i].msg