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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hw	NTB: Fix an error in get link status	2020-03-12 20:41:25 -04:00
test	ntb: ntb_pingpong: no need to check the return value of debugfs calls	2019-10-16 06:07:22 -07:00
core.c	NTB: Rename ntb.c to support multiple source files in the module	2019-06-13 09:02:02 -04:00
Kconfig	New feature to add support for NTB virtual MSI interrupts, the ability	2019-07-21 09:46:59 -07:00
Makefile	New feature to add support for NTB virtual MSI interrupts, the ability	2019-07-21 09:46:59 -07:00
msi.c	NTB/msi: remove incorrect MODULE defines	2019-08-05 15:42:27 -04:00
ntb_transport.c	NTB: ntb_transport: remove redundant assignment to rc	2019-09-23 17:20:40 -04:00