From caeccb682a2483a79162bb66a431175d4134ae0b Mon Sep 17 00:00:00 2001 From: Jeff Kirsher Date: Wed, 27 Sep 2006 12:53:57 -0700 Subject: e1000: add PCI-E capability detection code Add code to display the detected PCI-E bus width. Signed-off-by: Jeff Kirsher Signed-off-by: Auke Kok --- drivers/net/e1000/e1000_hw.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/net/e1000/e1000_hw.h') diff --git a/drivers/net/e1000/e1000_hw.h b/drivers/net/e1000/e1000_hw.h index b9364b5fd76..434492cc329 100644 --- a/drivers/net/e1000/e1000_hw.h +++ b/drivers/net/e1000/e1000_hw.h @@ -418,6 +418,7 @@ void e1000_pci_set_mwi(struct e1000_hw *hw); void e1000_pci_clear_mwi(struct e1000_hw *hw); void e1000_read_pci_cfg(struct e1000_hw *hw, uint32_t reg, uint16_t * value); void e1000_write_pci_cfg(struct e1000_hw *hw, uint32_t reg, uint16_t * value); +int32_t e1000_read_pcie_cap_reg(struct e1000_hw *hw, uint32_t reg, uint16_t *value); /* Port I/O is only supported on 82544 and newer */ void e1000_io_write(struct e1000_hw *hw, unsigned long port, uint32_t value); int32_t e1000_disable_pciex_master(struct e1000_hw *hw); @@ -2220,6 +2221,11 @@ struct e1000_host_command_info { #define E1000_FACTPS_LAN_FUNC_SEL 0x40000000 #define E1000_FACTPS_PM_STATE_CHANGED 0x80000000 +/* PCI-Ex Config Space */ +#define PCI_EX_LINK_STATUS 0x12 +#define PCI_EX_LINK_WIDTH_MASK 0x3F0 +#define PCI_EX_LINK_WIDTH_SHIFT 4 + /* EEPROM Commands - Microwire */ #define EEPROM_READ_OPCODE_MICROWIRE 0x6 /* EEPROM read opcode */ #define EEPROM_WRITE_OPCODE_MICROWIRE 0x5 /* EEPROM write opcode */ -- cgit v1.2.3