#define PCI_CAP_ID_SSVID 0x0D /* Bridge subsystem vendor/device ID */ #define PCI_CAP_ID_AGP3 0x0E /* AGP Target PCI-PCI bridge */ #define PCI_CAP_ID_EXP 0x10 /* PCI Express */ #define PCI_CAP_ID_MSIX 0x11 /* MSI-X */ #define PCI_CAP_ID_AF 0x13 /* PCI Advanced ...
[include/uapi/linux/pci_regs.h]#definePCI_CFG_SPACE_SIZE 256#definePCI_CFG_SPACE_EXP_SIZE 4096[drivers/pci/pci.c]intpci_find_next_ext_capability(structpci_dev *dev,intstart,intcap){ u32 header;intttl;intpos = PCI_CFG_SPACE_SIZE;/* minimum 8 bytes per capability */ttl = (PCI_CFG...
#define PCI_EXT_CAP_ID_RCILC 0x06 /* Root Complex Internal Link Control */ #define PCI_EXT_CAP_ID_RCEC 0x07 /* Root Complex Event Collector */ #define PCI_EXT_CAP_ID_MFVC 0x08 /* Multi-Function VC Capability */ #define PCI_EXT_CAP_ID_VC9 0x09 /* same as _VC */ #define ...
3.正常模式下更改速率:修改Link Control 2 Register的低4位,设置速率;Link Control Register第5位置1,重新训练速率。 如果要重新强制PCIE速率为2.5GT/s,可以输入以下命令:setpci -s 00:1c.0 CAP_EXP+0x30.b=0x0setpci -s 00:1c.0 CAP_EXP+0x10.b=0x20 PCIE配置空间设置_缥缈孤鸿_jason的博客-CSDN博客...
解析桥设备的PCIe配置空间头。具体有PCI_INTERRUPT_PIN、PCI_BASE_ADDRESS、PCI_EXP_SLTCAP、PCI_CAP_ID_SSVID、PCI_SSVID_VENDOR_ID和桥的地址空间。 配置、初始化和管理Function。主要是配置MPS、Extended Tags、ordering、LTR等,初始化MSI、PM、VPD、IOV、ATS、AER等,将pci_dev挂到pci_bus的devices链表,最后...
#define PCI_EXP_SLTCAP_PSN 0xfff80000/* Physical Slot Number */ printf("\t\t\tSlot #%d, PowerLimit %.3fW; Interlock%c NoCompl%c\n", (t & PCI_EXP_SLTCAP_PSN) >>19, ACPI PCIE Slot number和ACPI关系 PCIE槽位号码和ACPI(Advanced Configuration and Power Interface)之间存在一定的联系。
(t & PCI_EXP_SLTCAP_PSN) >> 19, 1. 2. 3. 4. ACPI(根据文档猜测的) PCIE Slot number和ACPI关系 PCIE槽位号码和ACPI(Advanced Configuration and Power Interface)之间存在一定的联系。 ACPI是一种电源管理和硬件配置标准,用于操作系统与计算机硬件之间的通信。它提供了一种机制,使操作系统可以了解计算机的...
lc=$(setpci -s $dev CAP_EXP+0c.L) ls=$(setpci -s $dev CAP_EXP+12.W) max_speed=$(("0x$lc"&0xF)) echo"Link capabilities:"$lc echo"Max link speed:"$max_speed echo"Link status:"$ls echo"Current link speed:"$(("0x$ls"&0xF))if[ -z"$speed"]; then ...
登录后复制fn hotplug_command_completed(&mut self) {登录后复制if let Err(e) = le_write_set_value_u16(登录后复制&mut self.config.config,登录后复制(self.config.ext_cap_offset + PCI_EXP_SLTSTA) as usize,登录后复制PCI_EXP_HP_EV_CCI,登录后复制) {登录后复制error!("{}", e.display_chain...
#define PCI_CAP_ID_SSVID 0x0D /* Bridge subsystem vendor/device ID */ #define PCI_CAP_ID_AGP3 0x0E /* AGP Target PCI-PCI bridge */ #define PCI_CAP_ID_EXP 0x10 /* PCI Express */ #define PCI_CAP_ID_MSIX 0x11 /* MSI-X */ ...