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Feature #218 » pciexp.h

Ilya Gurevich, 07/03/2019 02:04 PM

 
#ifndef DEVICE_PCIEXP_H
#define DEVICE_PCIEXP_H
/* (c) 2005 Linux Networx GPL see COPYING for details */

enum aspm_type {
PCIE_ASPM_NONE = 0,
PCIE_ASPM_L0S = 1,
PCIE_ASPM_L1 = 2,
PCIE_ASPM_BOTH = 3,
};

enum max_payload_size_type {
PCIE_MAX_PAYLOAD_SIZE_128B = 0,
PCIE_MAX_PAYLOAD_SIZE_256B = 1,
PCIE_MAX_PAYLOAD_SIZE_512B = 2,
PCIE_MAX_PAYLOAD_SIZE_1024B = 3,
PCIE_MAX_PAYLOAD_SIZE_2048B = 4,
PCIE_MAX_PAYLOAD_SIZE_4096B = 5,
PCIE_MAX_PAYLOAD_SIZE_RSRV1 = 6,
PCIE_MAX_PAYLOAD_SIZE_RSRV2 = 7
};


#define ASPM_LTR_L12_THRESHOLD_VALUE_OFFSET 16
#define ASPM_LTR_L12_THRESHOLD_VALUE_MASK (0x3ff << ASPM_LTR_L12_THRESHOLD_VALUE_OFFSET)
#define ASPM_LTR_L12_THRESHOLD_SCALE_OFFSET 29
#define ASPM_LTR_L12_THRESHOLD_SCALE_MASK (0x7 << ASPM_LTR_L12_THRESHOLD_SCALE_OFFSET)

void pciexp_scan_bus(struct bus *bus, unsigned int min_devfn,
unsigned int max_devfn);

void pciexp_scan_bridge(struct device *dev);

extern struct device_operations default_pciexp_ops_bus;

unsigned int pciexp_find_extended_cap(struct device *dev, unsigned int cap);
#endif /* DEVICE_PCIEXP_H */
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