kernel/git/stable/linux.git/drivers/ntb/hw, branch linux-4.9.y

NTB: hw: amd: fix an issue about leak system resources

2020-10-29T08:05:41+00:00

[ Upstream commit 44a0a3c17919db1498cebb02ecf3cf4abc1ade7b ] The related system resources were not released when pci_set_dma_mask(), pci_set_consistent_dma_mask(), or pci_iomap() return error in the amd_ntb_init_pci() function. Add pci_release_regions() to fix it. Fixes: a1b3695820aa ("NTB: Add support for AMD PCI-Express Non-Transparent Bridge") Signed-off-by: Kaige Li Signed-off-by: Jon Mason Signed-off-by: Sasha Levin

ntb: intel: fix return value for ndev_vec_mask()

2019-11-28T17:28:52+00:00

[ Upstream commit 7756e2b5d68c36e170a111dceea22f7365f83256 ] ndev_vec_mask() should be returning u64 mask value instead of int. Otherwise the mask value returned can be incorrect for larger vectors. Fixes: e26a5843f7f5 ("NTB: Split ntb_hw_intel and ntb_transport drivers") Signed-off-by: Dave Jiang Tested-by: Lucas Van Signed-off-by: Jon Mason Signed-off-by: Sasha Levin

ntb: ntb_hw_intel: init peer_addr in struct intel_ntb_dev

2016-11-13T21:48:29+00:00

The peer_addr member of intel_ntb_dev is not set, therefore when acquiring ntb_peer_db and ntb_peer_spad we only get the offset rather than the actual physical address. Adding fix to correct that. Signed-off-by: Dave Jiang Acked-by: Allen Hubbe Signed-off-by: Jon Mason

NTB: ntb_hw_intel: Fix typo in module parameter descriptions

2016-11-13T21:48:29+00:00

Fix typo in module parameter descriptions. Signed-off-by: Wei Yongjun Acked-by: Allen Hubbe Signed-off-by: Jon Mason

NTB: ntb_hw_intel: use local variable pdev

2016-08-05T14:34:13+00:00

Clean up duplicated expression by replacing it with the equivalent local variable pdev. Signed-off-by: Allen Hubbe Acked-by: Dave Jiang Signed-off-by: Jon Mason

NTB: ntb_hw_intel: show BAR size in debugfs info

2016-08-05T14:33:47+00:00

It will be useful to know the hardware configured BAR size to diagnose issues with NTB memory windows. Signed-off-by: Allen Hubbe Acked-by: Dave Jiang Signed-off-by: Jon Mason

NTB: Remove _addr functions from ntb_hw_amd

2016-03-26T15:44:33+00:00

Kernel zero day testing warned about address space confusion. A virtual iomem address was used where a physical address is expected. The offending functions implement an optional part of the api, so they are removed. They can be added later, after testing. Fixes: a1b3695820aa490e58915d720a1438069813008b Signed-off-by: Allen Hubbe Acked-by: Xiangliang Yu Signed-off-by: Jon Mason

NTB: Fix macro parameter conflict with field name

2016-01-22T00:53:10+00:00

If the parameter given to the macro is replaced throughout the macro as it is evaluated. The intent is that the macro parameter should replace the only the first parameter to container_of(). However, the way the macro was written, it would also inadvertantly replace a structure field name. If a parameter of any other name is given to the macro, it will fail to compile, if the structure does not contain a field of the same name. At worst, it will compile, and hide improper access of an unintended field in the structure. Change the macro parameter name, so it does not conflict with the structure field name. Signed-off-by: Allen Hubbe Acked-by: Dave Jiang Signed-off-by: Jon Mason

NTB: Add support for AMD PCI-Express Non-Transparent Bridge

2016-01-22T00:51:04+00:00

This adds support for AMD's PCI-Express Non-Transparent Bridge (NTB) device on the Zeppelin platform. The driver connnects to the standard NTB sub-system interface, with modification to add hooks for power management in a separate patch. The AMD NTB device has 3 memory windows, 16 doorbell, 16 scratch-pad registers, and supports up to 16 PCIe lanes running a Gen3 speeds. Signed-off-by: Xiangliang Yu Reviewed-by: Allen Hubbe Signed-off-by: Jon Mason

NTB: Clear property bits in BAR value

2016-01-11T14:51:17+00:00

The lower bits read from a BAR register will contain property bits that we do not care about. Clear those so that we can use the BAR values for limit and xlat registers. Reported-by: Conrad Meyer Signed-off-by: Dave Jiang Signed-off-by: Jon Mason