Jiasen Lin bb81bf6215 NTB: Fix an error in get link status ... The offset of PCIe Capability Header for AMD and HYGON NTB is 0x64, but the macro which named "AMD_LINK_STATUS_OFFSET" is defined as 0x68. It is offset of Device Capabilities Reg rather than Link Control Reg. This code trigger an error in get link statsus: cat /sys/kernel/debug/ntb_hw_amd/0000:43:00.1/info LNK STA - 0x8fa1 Link Status - Up Link Speed - PCI-E Gen 0 Link Width - x0 This patch use pcie_capability_read_dword to get link status. After fix this issue, we can get link status accurately: cat /sys/kernel/debug/ntb_hw_amd/0000:43:00.1/info LNK STA - 0x11030042 Link Status - Up Link Speed - PCI-E Gen 3 Link Width - x16 Fixes: a1b3695820 ("NTB: Add support for AMD PCI-Express Non-Transparent Bridge") Signed-off-by: Jiasen Lin <linjiasen@hygon.cn> Signed-off-by: Jon Mason <jdmason@kudzu.us>		2020-03-12 20:41:25 -04:00
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amd	NTB: Fix an error in get link status	2020-03-12 20:41:25 -04:00
idt	NTB: fix IDT Kconfig typos/spellos	2019-09-23 17:20:40 -04:00
intel	New feature to add support for NTB virtual MSI interrupts, the ability	2019-07-21 09:46:59 -07:00
mscc	ntb_hw_switchtec: make ntb_mw_set_trans() work when addr == 0	2019-09-23 17:20:40 -04:00
Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00