linux.git/drivers/ntb/hw/intel, branch v5.13

ntb: intel: add Intel NTB LTR vendor support for gen4 NTB

2020-12-06T23:18:03+00:00

Intel NTB device has custom LTR management that is not compliant with the
PCIe standard. Add support to set LTR status triggered by link status
change.

Signed-off-by: Dave Jiang 
Signed-off-by: Jon Mason

ntb: intel: Fix memleak in intel_ntb_pci_probe

2020-08-24T14:44:47+00:00

The default error branch of a series of pdev_is_gen calls
should free ndev just like what we've done in these calls.

Fixes: 26bfe3d0b227 ("ntb: intel: Add Icelake (gen4) support for Intel NTB")
Signed-off-by: Dinghao Liu 
Acked-by: Dave Jiang 
Signed-off-by: Jon Mason

ntb: intel: constify ioreadX() iomem argument (as in generic implementation)

2020-08-15T02:56:57+00:00

The ioreadX() helpers have inconsistent interface.  On some architectures
void *__iomem address argument is a pointer to const, on some not.

Implementations of ioreadX() do not modify the memory under the address so
they can be converted to a "const" version for const-safety and
consistency among architectures.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Andrew Morton 
Reviewed-by: Geert Uytterhoeven 
Acked-by: Dave Jiang 
Cc: Allen Hubbe 
Cc: Arnd Bergmann 
Cc: Benjamin Herrenschmidt 
Cc: "David S. Miller" 
Cc: Geert Uytterhoeven 
Cc: Helge Deller 
Cc: Ivan Kokshaysky 
Cc: Jakub Kicinski 
Cc: "James E.J. Bottomley" 
Cc: Jason Wang 
Cc: Jon Mason 
Cc: Kalle Valo 
Cc: Matt Turner 
Cc: Michael Ellerman 
Cc: "Michael S. Tsirkin" 
Cc: Paul Mackerras 
Cc: Richard Henderson 
Cc: Rich Felker 
Cc: Yoshinori Sato 
Link: http://lkml.kernel.org/r/20200709072837.5869-4-krzk@kernel.org
Signed-off-by: Linus Torvalds

ntb: hw: remove the code that sets the DMA mask

2020-06-06T00:02:08+00:00

This patch removes the code that sets the DMA mask as it no longer
makes sense to do this.

Fixes: 7f46c8b3a552 ("NTB: ntb_tool: Add full multi-port NTB API support")
Signed-off-by: Logan Gunthorpe 
Tested-by: Alexander Fomichev 
Signed-off-by: Sanjay R Mehta 
Signed-off-by: Jon Mason

ntb: intel: fix static declaration

2020-06-06T00:02:08+00:00

intel_ntb4_link_disable() missing static declaration.

Reported-by: kbuild test robot 
Signed-off-by: Dave Jiang 
Signed-off-by: Jon Mason

ntb: intel: add hw workaround for NTB BAR alignment

2020-06-06T00:02:00+00:00

Add NTB_HWERR_BAR_ALIGN hw errata flag to work around issue where the
aligment for the XLAT base must be BAR size aligned rather than 4k page
aligned. On ICX platform, the XLAT base can be 4k page size aligned
rather than BAR size aligned unlike the previous gen Intel NTB. However,
a silicon errata prevented this from working as expected and a workaround
is introduced to resolve the issue.

Signed-off-by: Dave Jiang 
Signed-off-by: Jon Mason

ntb: intel: Add Icelake (gen4) support for Intel NTB

2020-04-20T14:16:23+00:00

Adding 4th generation Intel NTB support bits. There are a lot of common
parts that the gen4 NTB has with gen3 NTB on Skylake. The commonalities are
reused in gen4 Icelake NTB.

Signed-off-by: Dave Jiang 
Signed-off-by: Jon Mason

Merge tag 'ntb-5.3' of git://github.com/jonmason/ntb

2019-07-21T16:46:59+00:00

Pull NTB updates from Jon Mason:
 "New feature to add support for NTB virtual MSI interrupts, the ability
  to test and use this feature in the NTB transport layer.

  Also, bug fixes for the AMD and Switchtec drivers, as well as some
  general patches"

* tag 'ntb-5.3' of git://github.com/jonmason/ntb: (22 commits)
  NTB: Describe the ntb_msi_test client in the documentation.
  NTB: Add MSI interrupt support to ntb_transport
  NTB: Add ntb_msi_test support to ntb_test
  NTB: Introduce NTB MSI Test Client
  NTB: Introduce MSI library
  NTB: Rename ntb.c to support multiple source files in the module
  NTB: Introduce functions to calculate multi-port resource index
  NTB: Introduce helper functions to calculate logical port number
  PCI/switchtec: Add module parameter to request more interrupts
  PCI/MSI: Support allocating virtual MSI interrupts
  ntb_hw_switchtec: Fix setup MW with failure bug
  ntb_hw_switchtec: Skip unnecessary re-setup of shared memory window for crosslink case
  ntb_hw_switchtec: Remove redundant steps of switchtec_ntb_reinit_peer() function
  NTB: correct ntb_dev_ops and ntb_dev comment typos
  NTB: amd: Silence shift wrapping warning in amd_ntb_db_vector_mask()
  ntb_hw_switchtec: potential shift wrapping bug in switchtec_ntb_init_sndev()
  NTB: ntb_transport: Ensure qp->tx_mw_dma_addr is initaliazed
  NTB: ntb_hw_amd: set peer limit register
  NTB: ntb_perf: Clear stale values in doorbell and command SPAD register
  NTB: ntb_perf: Disable NTB link after clearing peer XLAT registers
  ...

ntb: intel: Make intel_ntb3_peer_db_addr static

2019-06-13T12:53:19+00:00

Fix sparse warning:

drivers/ntb/hw/intel/ntb_hw_gen3.c:535:5: warning:
 symbol 'intel_ntb3_peer_db_addr' was not declared. Should it be static?

Signed-off-by: YueHaibing 
Acked-by: Dave Jiang 
Signed-off-by: Jon Mason

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46+00:00

Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner 
Signed-off-by: Greg Kroah-Hartman