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1. 有关R-tile Avalon® 流 Intel® FPGA IP用于PCI Express
2. IP架构和功能描述
3. 高级功能特性
4. 接口
5. 参数
6. 用于 PCI Express* 的 Intel® FPGA R-tile Avalon® Streaming IP用户指南存档
7. 用于PCI Express的Intel FPGA R-tile Avalon® Streaming IP用户指南文档修订历史
A. 配置空间寄存器
B. 根端口枚举
C. Endpoint模式下Address Translation Services(ATS)的实现
D. TLP Bypass模式下转发到用户应用的数据包
3.2.2.5.1. VirtIO Common Configuration Capability寄存器(地址: 0x012)
3.2.2.5.2. VirtIO Common Configuration Capability寄存器(地址: 0x013)
3.2.2.5.3. VirtIO Common Configuration BAR Offset寄存器(地址: 0x014)
3.2.2.5.4. VirtIO Common Configuration Structure长度寄存器(地址:0x015)
3.2.2.5.5. VirtIO Notifications Capability寄存器(地址:0x016)
3.2.2.5.6. VirtIO Notifications BAR Indicator寄存器(地址:0x017)
3.2.2.5.7. VirtIO Notifications BAR Offset寄存器(地址:0x018)
3.2.2.5.8. VirtIO Notifications Structure长度寄存器(地址:0x019)
3.2.2.5.9. VirtIO Notifications Notify Off Multiplier寄存器(地址:0x01A)
3.2.2.5.10. VirtIO ISR Status Capability寄存器(地址:0x02F)
3.2.2.5.11. VirtIO ISR Status BAR Indicator寄存器(地址:0x030)
3.2.2.5.12. VirtIO ISR Status BAR Offset寄存器(地址:0x031)
3.2.2.5.13. VirtIO ISR Status Structure长度寄存器(地址:0x032)
3.2.2.5.14. VirtIO Device Specific Capability寄存器(地址:0x033)
3.2.2.5.15. VirtIO Device Specific BAR Indicator寄存器(地址:0x034)
3.2.2.5.16. VirtIO Device Specific BAR Offset寄存器(地址:0x035)
3.2.2.5.17. VirtIO Device Specific Structure长度寄存器(地址:0x036)
3.2.2.5.18. VirtIO PCI Configuration Access Capability寄存器(Address: 0x037)
3.2.2.5.19. VirtIO PCI Configuration Access BAR Indicator寄存器(地址:0x038)
3.2.2.5.20. VirtIO PCI Configuration Access BAR Offset寄存器(地址:0x039)
3.2.2.5.21. VirtIO PCI Configuration Access Structure长度寄存器(地址:0x03A)
3.2.2.5.22. VirtIO PCI Configuration Access Data寄存器(地址:0x03B)
4.4.1. Avalon® 流接口
4.4.2. 精确时间测量(PTM)接口(仅端点)
4.4.3. 中断接口
4.4.4. Hard IP重配置接口
4.4.5. Error接口
4.4.6. Completion Timeout接口
4.4.7. Configuration Intercept接口
4.4.8. 电源管理接口
4.4.9. Hard IP状态接口
4.4.10. Page Request Services (PRS)接口(仅Endpoint)
4.4.11. Function-Level Reset (FLR,功能层复位)接口(仅Endpoint)
4.4.12. SR-IOV VF Error Flag接口(仅Endpoint)
4.4.13. 通用VSEC接口
5.2.3.1. 器件Capabilities
5.2.3.2. VirtIO参数
5.2.3.3. 链路Capabilities
5.2.3.4. Legacy中断管脚寄存器
5.2.3.5. MSI Capabilities
5.2.3.6. MSI-X Capabilities
5.2.3.7. 插槽Capabilities
5.2.3.8. Latency Tolerance Reporting (LTR)
5.2.3.9. Process Address Space ID (PASID)
5.2.3.10. 器件序列号Capability
5.2.3.11. Page Request Service (PRS)
5.2.3.12. Access Control Service (ACS)
5.2.3.13. 电源管理
5.2.3.14. Vendor Specific Extended Capability (VSEC,供应商指定扩展性能)寄存器
5.2.3.15. TLP Processing Hints (TPH)
5.2.3.16. Address Translation Services (ATS) Capabilities
5.2.3.17. Precision Time Management (PTM)
仅对英特尔可见 — GUID: glk1602633525744
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4.5.3. 偏移校正通道
PIPE Direct模式下,PHY wrapper会消除跨接EMIB时引入的lane到lane偏移。使用专用的偏移校正符检测并补偿EMIB引入的多通道偏移。偏移校正逻辑最多可达到3个周期的并行偏移。在cold/warm/hot复位或者CvP更新后,偏移校正就将开始。
用户应用逻辑需要每16个时钟周期发送一个偏移校正符,以便对EMIB通道上的数据进行偏移校正。PHY偏移校正逻辑将会在每次接收到偏移校正符后运行偏移校正进程。
PIPE Direct Tx偏移校正Bundle | Octet 1 | Octet 0 | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lane 15 | Lane 14 | Lane 13 | Lane 12 | Lane 11 | Lane 10 | Lane 9 | Lane 8 | Lane 7 | Lane 6 | Lane 5 | Lane 4 | Lane 3 | Lane 2 | Lane 1 | Lane 0 | |
1X16 | Octet1_Dsk_0 | Octet0_Dsk_0 | ||||||||||||||
2X8 | Octet1_Dsk_0 | Octet0_Dsk_0 | ||||||||||||||
4X4 | Octet1_Dsk_2 | Octet1_Dsk_0 | Octet0_Dsk_2 | Octet0_Dsk_0 | ||||||||||||
8X2 | Octet1_Dsk_3 | Octet1_Dsk_2 | Octet1_Dsk_1 | Octet1_Dsk_0 | Octet0_Dsk_3 | Octet0_Dsk_2 | Octet0_Dsk_1 | Octet0_Dsk_0 | ||||||||
16X1 | 无Tx偏移校正 | |||||||||||||||
2X4; 1X8 | Octet1_Dsk_2 | Octet1_Dsk_0 | Octet0_Dsk_0 | |||||||||||||
4X2; 1X8 | Octet1_Dsk_3 | Octet1_Dsk_2 | Octet1_Dsk_1 | Octet1_Dsk_0 | Octet0_Dsk_0 | |||||||||||
8X1; 1X8 | 无Tx偏移校正 | Octet0_Dsk_0 | ||||||||||||||
1X8; 2X4 | Octet1_Dsk_0 | Octet0_Dsk_2 | Octet0_Dsk_0 | |||||||||||||
4X2; 2X4 | Octet1_Dsk_3 | Octet1_Dsk_2 | Octet1_Dsk_1 | Octet1_Dsk_0 | Octet0_Dsk_2 | Octet0_Dsk_0 | ||||||||||
8X1; 2X4 | 无Tx偏移校正 | Octet0_Dsk_0 | Octet0_Dsk_0 | |||||||||||||
1X8; 4X2 | Octet1_Dsk_0 | Octet0_Dsk_3 | Octet0_Dsk_2 | Octet0_Dsk_1 | Octet0_Dsk_0 | |||||||||||
2X4; 4X2 | Octet1_Dsk_2 | Octet1_Dsk_0 | Octet0_Dsk_3 | Octet0_Dsk_2 | Octet0_Dsk_1 | Octet0_Dsk_0 | ||||||||||
8X1; 4X2 | 无Tx偏移校正 | Octet0_Dsk_3 | Octet0_Dsk_2 | Octet0_Dsk_1 | Octet0_Dsk_0 | |||||||||||
1X8; 8X1 | Octet1_Dsk_0 | 无Tx偏移校正 | ||||||||||||||
2X4; 8X1 | Octet1_Dsk_2 | Octet1_Dsk_0 | 无Tx偏移校正 | |||||||||||||
4X2; 8X1 | Octet1_Dsk_3 | Octet1_Dsk_2 | Octet1_Dsk_1 | Octet1_Dsk_0 | 无Tx偏移校正 |