Arindam Nath cb004c28dd NTB: Fix access to link status and control register ... The design of AMD NTB implementation is such that NTB primary acts as an endpoint device and NTB secondary is an endpoint device behind a combination of Switch Upstream and Switch Downstream. Considering that, the link status and control register needs to be accessed differently based on the NTB topology. So in the case of NTB secondary, we first get the pointer to the Switch Downstream device for the NTB device. Then we get the pointer to the Switch Upstream device. Once we have that, we read the Link Status and Control register to get the correct status of link at the secondary. In the case of NTB primary, simply reading the Link Status and Control register of the NTB device itself will suffice. Suggested-by: Jiasen Lin <linjiasen@hygon.cn> Signed-off-by: Arindam Nath <arindam.nath@amd.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>		2020-03-13 10:04:19 -04:00
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hw	NTB: Fix access to link status and control register	2020-03-13 10:04:19 -04:00
test	ntb_tool: Fix printk format	2020-03-13 10:03:49 -04:00
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: Use scnprintf() for avoiding potential buffer overflow	2020-03-13 10:03:49 -04:00