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Commit c8a0739b authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'ntb-4.15' of git://github.com/jonmason/ntb 

Pull ntb updates from Jon Mason:
 "Support for the switchtec ntb and related changes. Also, a couple of
  bug fixes"

[ The timing isn't great. I had asked people to send me pull requests
  before my family vacation, and this code has not even been in
  linux-next as far as I can tell. But Logan Gunthorpe pleaded for its
  inclusion because the Switchtec driver has apparently been around for
  a while, just never in linux-next - Linus ]

* tag 'ntb-4.15' of git://github.com/jonmason/ntb:
  ntb: intel: remove b2b memory window workaround for Skylake NTB
  NTB: make idt_89hpes_cfg const
  NTB: switchtec_ntb: Update switchtec documentation with notes for NTB
  NTB: switchtec_ntb: Add memory window support
  NTB: switchtec_ntb: Implement scratchpad registers
  NTB: switchtec_ntb: Implement doorbell registers
  NTB: switchtec_ntb: Add link management
  NTB: switchtec_ntb: Add skeleton NTB driver
  NTB: switchtec_ntb: Initialize hardware for doorbells and messages
  NTB: switchtec_ntb: Initialize hardware for memory windows
  NTB: switchtec_ntb: Introduce initial NTB driver
  NTB: Add check and comment for link up to mw_count() and mw_get_align()
  NTB: Ensure ntb_mw_get_align() is only called when the link is up
  NTB: switchtec: Add link event notifier callback
  NTB: switchtec: Add NTB hardware register definitions
  NTB: switchtec: Export class symbol for use in upper layer driver
  NTB: switchtec: Move structure definitions into a common header
  ntb: update maintainer list for Intel NTB driver
parents 020aae3e 4201a991

Documentation/switchtec.txt

+12 −0
Original line number Diff line number Diff line
@@ -78,3 +78,15 @@ The following IOCTLs are also supported by the device: 
  between PCI Function Framework number (used by the event system)

  and Switchtec Logic Port ID and Partition number (which is more

  user friendly).





Non-Transparent Bridge (NTB) Driver

===================================



An NTB driver is provided for the switchtec hardware in switchtec_ntb.

Currently, it only supports switches configured with exactly 2

partitions. It also requires the following configuration settings:



* Both partitions must be able to access each other's GAS spaces.

  Thus, the bits in the GAS Access Vector under Management Settings

  must be set to support this.

MAINTAINERS

+4 −3
Original line number Diff line number Diff line
@@ -9726,12 +9726,11 @@ S: Supported 
F:	drivers/ntb/hw/idt/



NTB INTEL DRIVER

M:	Jon Mason <jdmason@kudzu.us>

M:	Dave Jiang <dave.jiang@intel.com>

L:	linux-ntb@googlegroups.com

S:	Supported

W:	https://github.com/jonmason/ntb/wiki

T:	git git://github.com/jonmason/ntb.git

W:	https://github.com/davejiang/linux/wiki

T:	git https://github.com/davejiang/linux.git

F:	drivers/ntb/hw/intel/



NTFS FILESYSTEM
@@ -10443,6 +10442,8 @@ F: Documentation/switchtec.txt 
F:	Documentation/ABI/testing/sysfs-class-switchtec

F:	drivers/pci/switch/switchtec*

F:	include/uapi/linux/switchtec_ioctl.h

F:	include/linux/switchtec.h

F:	drivers/ntb/hw/mscc/



PCI DRIVER FOR MVEBU (Marvell Armada 370 and Armada XP SOC support)

M:	Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

drivers/ntb/hw/Kconfig

+1 −0
Original line number Diff line number Diff line 
source "drivers/ntb/hw/amd/Kconfig"

source "drivers/ntb/hw/idt/Kconfig"

source "drivers/ntb/hw/intel/Kconfig"

source "drivers/ntb/hw/mscc/Kconfig"

drivers/ntb/hw/Makefile

+1 −0
Original line number Diff line number Diff line 
obj-$(CONFIG_NTB_AMD)	+= amd/

obj-$(CONFIG_NTB_IDT)	+= idt/

obj-$(CONFIG_NTB_INTEL)	+= intel/

obj-$(CONFIG_NTB_SWITCHTEC) += mscc/

drivers/ntb/hw/idt/ntb_hw_idt.c

+8 −8
Original line number Diff line number Diff line
@@ -2628,35 +2628,35 @@ static void idt_pci_remove(struct pci_dev *pdev) 
/*

 * IDT PCIe-switch models ports configuration structures

 */

static struct idt_89hpes_cfg idt_89hpes24nt6ag2_config = {

static const struct idt_89hpes_cfg idt_89hpes24nt6ag2_config = {

	.name = "89HPES24NT6AG2",

	.port_cnt = 6, .ports = {0, 2, 4, 6, 8, 12}

};

static struct idt_89hpes_cfg idt_89hpes32nt8ag2_config = {

static const struct idt_89hpes_cfg idt_89hpes32nt8ag2_config = {

	.name = "89HPES32NT8AG2",

	.port_cnt = 8, .ports = {0, 2, 4, 6, 8, 12, 16, 20}

};

static struct idt_89hpes_cfg idt_89hpes32nt8bg2_config = {

static const struct idt_89hpes_cfg idt_89hpes32nt8bg2_config = {

	.name = "89HPES32NT8BG2",

	.port_cnt = 8, .ports = {0, 2, 4, 6, 8, 12, 16, 20}

};

static struct idt_89hpes_cfg idt_89hpes12nt12g2_config = {

static const struct idt_89hpes_cfg idt_89hpes12nt12g2_config = {

	.name = "89HPES12NT12G2",

	.port_cnt = 3, .ports = {0, 8, 16}

};

static struct idt_89hpes_cfg idt_89hpes16nt16g2_config = {

static const struct idt_89hpes_cfg idt_89hpes16nt16g2_config = {

	.name = "89HPES16NT16G2",

	.port_cnt = 4, .ports = {0, 8, 12, 16}

};

static struct idt_89hpes_cfg idt_89hpes24nt24g2_config = {

static const struct idt_89hpes_cfg idt_89hpes24nt24g2_config = {

	.name = "89HPES24NT24G2",

	.port_cnt = 8, .ports = {0, 2, 4, 6, 8, 12, 16, 20}

};

static struct idt_89hpes_cfg idt_89hpes32nt24ag2_config = {

static const struct idt_89hpes_cfg idt_89hpes32nt24ag2_config = {

	.name = "89HPES32NT24AG2",

	.port_cnt = 8, .ports = {0, 2, 4, 6, 8, 12, 16, 20}

};

static struct idt_89hpes_cfg idt_89hpes32nt24bg2_config = {

static const struct idt_89hpes_cfg idt_89hpes32nt24bg2_config = {

	.name = "89HPES32NT24BG2",

	.port_cnt = 8, .ports = {0, 2, 4, 6, 8, 12, 16, 20}

};