gvisor-lx/pkg/abi/tpu/tpu.go
Leadaxe 117243aa02 snapshot: sagernet/gvisor v0.0.0-20260727.0-sing-box-mod.1 + SPEC 048 guard
Обновление снапшота с v0.0.0-20250811.0 на пин, которого требует
sing-box после мержа 235 коммитов (upstream d620bbbf2 "Update gvisor to
20260727.0"). Прежний снапшот был взят 2026-08-04 ровно с той версии,
на которой тогда стоял апстрим; разрыв возник 2026-08-05 вместе с его
бампом.

За год апстрим-gvisor изменил ~14 000 строк в 292 файлах. Значимое для
нас — сетевой стек: tcp/connect.go (PMTU-discovery + исправление
начального RTT/RTO: раньше задержка ACK внутри стека завышала стартовый
таймаут на несколько RTT), tcp/snd.go, tcp/rcv.go, stack/conntrack.go,
stack/packet_buffer.go. Всего 30 файлов в TCP и 37 в stack.

Баг SPEC 048 апстрим НЕ исправил — проверено по коду новой версии:
handleConnecting по-прежнему проверяет состояние endpoint'а, но не ep.h,
а performHandshake так же зануляет h и отпускает мьютекс до Close().
Поэтому guard перенесён (12 строк) вместе со своим тестом (45 строк).

Red/green проверен на новой базе: без guard'а тест падает с той же
nil-паникой, что в полевом крашдампе; с ним зелёный.
2026-08-05 14:53:31 +03:00

155 lines
3.8 KiB
Go

// Copyright 2023 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package tpu defines constants used to interact with TPUs. The constants are
// derived from those listed in https://github.com/tensorflow/tpu/blob/master/tools/driver/drivers/char/tpu_common
package tpu
const (
// SizeOfTPUV4InterruptList is the total number of valid
// (BAR Index, Register Offset) pairs.
SizeOfTPUV4InterruptList = uint64(45)
// NumberOfTPUV4PageTables is the number of gasket page tables used by the
// TPU V4 driver.
NumberOfTPUV4PageTables = uint64(1)
// TPUV4DeviceID is the PCI device ID of TPU V4 hardware.
TPUV4DeviceID = 0x005E
// SizeOfTPUV4liteInterruptList is the total number of valid
// (BAR Index, Register Offset) pairs.
SizeOfTPUV4liteInterruptList = uint64(37)
// NumberOfTPUV4litePageTables is the number of gasket page tables used by the
// TPU V4 driver
NumberOfTPUV4litePageTables = uint64(1)
// TPUV4liteDeviceID is the PCI device ID of TPU V4lite hardware.
TPUV4liteDeviceID = 0x0056
// TPUV5eDeviceID is the PCI device ID of TPU V5e hardware.
TPUV5eDeviceID = 0x0063
// TPUV5pDeviceID is the PCI device ID of TPU V5p hardware.
TPUV5pDeviceID = 0x0062
// TPUV6eDeviceID is the PCI device ID of TPU V6e hardware.
TPUV6eDeviceID = 0x006f
// TPUV6ePFDeviceID is PCI device ID of TPU V6e hardware PF.
TPUV6ePFDeviceID = 0x006e
// TPU7xDeviceID is the PCI device ID of TPU 7x hardware.
TPU7xDeviceID = 0x0075
// TPU7xPFDeviceID is the PCI device ID of TPU 7x hardware PF.
TPU7xPFDeviceID = 0x0076
)
// TPUV4InterruptsMap maps BAR indices to valid register offsets.
var (
TPUV4InterruptsMap = map[uint64]map[uint64]struct{}{
2: {
0x15b0008: {},
0x15b0000: {},
0x16b0008: {},
0x16b0000: {},
0x17b0008: {},
0x17b0000: {},
0x18b0008: {},
0x18b0000: {},
0x19b0020: {},
0x19b0000: {},
0x19b0008: {},
0x19b0010: {},
0x19b0018: {},
0x1ab0020: {},
0x1ab0000: {},
0x1ab0008: {},
0x1ab0010: {},
0x1ab0018: {},
0x4720000: {},
0x1bb0000: {},
0x1bb0008: {},
0x1bb0010: {},
0x1bb0018: {},
0x90000: {},
0xb0000: {},
0xd0000: {},
0xf0000: {},
0x110000: {},
0x130000: {},
0x150000: {},
0x170000: {},
0x190000: {},
0x1b0000: {},
0x1d0000: {},
0x1f0000: {},
0x210000: {},
0x230000: {},
0x250000: {},
0x270000: {},
0x290000: {},
0x2b0000: {},
0x2d0000: {},
0x2f0000: {},
0x310000: {},
0x4720018: {},
},
}
// TPUV4liteInterruptsMap maps BAR indices to valid register offsets.
TPUV4liteInterruptsMap = map[uint64]map[uint64]struct{}{
2: {
0x19b0020: {},
0x19b0000: {},
0x19b0008: {},
0x19b0010: {},
0x19b0018: {},
0x1ab0020: {},
0x1ab0000: {},
0x1ab0008: {},
0x1ab0010: {},
0x1ab0018: {},
0x4720000: {},
0x1bb0000: {},
0x1bb0008: {},
0x1bb0010: {},
0x1bb0018: {},
0x90000: {},
0xb0000: {},
0xd0000: {},
0xf0000: {},
0x110000: {},
0x130000: {},
0x150000: {},
0x170000: {},
0x190000: {},
0x1b0000: {},
0x1d0000: {},
0x1f0000: {},
0x210000: {},
0x230000: {},
0x250000: {},
0x270000: {},
0x290000: {},
0x2b0000: {},
0x2d0000: {},
0x2f0000: {},
0x310000: {},
0x4720018: {},
},
}
)