| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20210104152909.22038-1-kishon@ti.com>
Date: Mon, 4 Jan 2021 20:58:52 +0530
From: Kishon Vijay Abraham I <kishon@...com>
To: Bjorn Helgaas <bhelgaas@...gle.com>,
Jonathan Corbet <corbet@....net>,
Kishon Vijay Abraham I <kishon@...com>,
Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
Arnd Bergmann <arnd@...db.de>, Jon Mason <jdmason@...zu.us>,
Dave Jiang <dave.jiang@...el.com>,
Allen Hubbe <allenbh@...il.com>,
Tom Joseph <tjoseph@...ence.com>, Rob Herring <robh@...nel.org>
CC: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
<linux-pci@...r.kernel.org>, <linux-doc@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <linux-ntb@...glegroups.com>
Subject: [PATCH v9 00/17] Implement NTB Controller using multiple PCI EP
This series is about implementing SW defined Non-Transparent Bridge (NTB)
using multiple endpoint (EP) instances. This series has been tested using
2 endpoint instances in J7 connected to J7 board on one end and DRA7 board
on the other end. However there is nothing platform specific for the NTB
functionality.
This was presented in Linux Plumbers Conference. Link to presentation
and video can be found @ [1]
Created a video demo @ [9]
RFC patch series can be found @ [2]
v1 patch series can be found @ [3]
v2 patch series can be found @ [4]
v3 patch series can be found @ [5]
v4 patch series can be found @ [6]
v5 patch series can be found @ [7]
v6 patch series can be found @ [8]
v7 patch series can be found @ [10]
v8 patch series can be found @ [11]
Changes from v8:
1) Do not use devm_request_irq/devm_free_irq as pci_free_irq_vectors()
has to be used after free_irq
2) Drop "NTB: tool: Enable the NTB/PCIe link on the local or remote side
of bridge" as there is a debugfs entry to enable the link
Changes from v7:
1) Used values stored in ctrl_reg_bar, peer_spad_reg_bar and db_reg_bar
instead of hardcoded values in pci_iomap of ntb_hw_epf.c driver
Changes from v6:
1) Fixed issues when multiple NTB devices are creating using multiple
functions
2) Fixed issue with writing scratchpad register
3) Created a video demo @ [9]
Changes from v5:
1) Fixed a formatting issue in Kconfig pointed out by Randy
2) Checked for Error or Null in pci_epc_add_epf()
Changes from v4:
1) Fixed error condition checks in pci_epc_add_epf()
Changes from v3:
1) Fixed Documentation edits suggested by Randy Dunlap <rdunlap@...radead.org>
Changes from v2:
1) Add support for the user to create sub-directory of 'EPF Device'
directory (for endpoint function specific configuration using
configfs).
2) Add documentation for NTB specific attributes in configfs
3) Check for PCI_CLASS_MEMORY_RAM (PCIe class) before binding ntb_hw_epf
driver
4) Other documentation fixes
Changes from v1:
1) As per Rob's comment, removed support for creating NTB function
device from DT
2) Add support to create NTB EPF device using configfs (added support in
configfs to associate primary and secondary EPC with EPF.
Changes from RFC:
1) Converted the DT binding patches to YAML schema and merged the
DT binding patches together
2) NTB documentation is converted to .rst
3) One HOST can now interrupt the other HOST using MSI-X interrupts
4) Added support for teardown of memory window and doorbell
configuration
5) Add support to provide support 64-bit memory window size from
DT
[1] -> https://linuxplumbersconf.org/event/4/contributions/395/
[2] -> http://lore.kernel.org/r/20190926112933.8922-1-kishon@ti.com
[3] -> http://lore.kernel.org/r/20200514145927.17555-1-kishon@ti.com
[4] -> http://lore.kernel.org/r/20200611130525.22746-1-kishon@ti.com
[5] -> http://lore.kernel.org/r/20200904075052.8911-1-kishon@ti.com
[6] -> http://lore.kernel.org/r/20200915042110.3015-1-kishon@ti.com
[7] -> http://lore.kernel.org/r/20200918064227.1463-1-kishon@ti.com
[8] -> http://lore.kernel.org/r/20200924092519.17082-1-kishon@ti.com
[9] -> https://youtu.be/dLKKxrg5-rY
[10] -> http://lore.kernel.org/r/20200930153519.7282-1-kishon@ti.com
[11] -> http://lore.kernel.org/r/20201111153559.19050-1-kishon@ti.com
Kishon Vijay Abraham I (17):
Documentation: PCI: Add specification for the *PCI NTB* function
device
PCI: endpoint: Make *_get_first_free_bar() take into account 64 bit
BAR
PCI: endpoint: Add helper API to get the 'next' unreserved BAR
PCI: endpoint: Make *_free_bar() to return error codes on failure
PCI: endpoint: Remove unused pci_epf_match_device()
PCI: endpoint: Add support to associate secondary EPC with EPF
PCI: endpoint: Add support in configfs to associate two EPCs with EPF
PCI: endpoint: Add pci_epc_ops to map MSI irq
PCI: endpoint: Add pci_epf_ops for epf drivers to expose function
specific attrs
PCI: endpoint: Allow user to create sub-directory of 'EPF Device'
directory
PCI: cadence: Implement ->msi_map_irq() ops
PCI: cadence: Configure LM_EP_FUNC_CFG based on epc->function_num_map
PCI: endpoint: Add EP function driver to provide NTB functionality
PCI: Add TI J721E device to pci ids
NTB: Add support for EPF PCI-Express Non-Transparent Bridge
Documentation: PCI: Add configfs binding documentation for pci-ntb
endpoint function
Documentation: PCI: Add userguide for PCI endpoint NTB function
.../PCI/endpoint/function/binding/pci-ntb.rst | 38 +
Documentation/PCI/endpoint/index.rst | 3 +
.../PCI/endpoint/pci-endpoint-cfs.rst | 10 +
.../PCI/endpoint/pci-ntb-function.rst | 351 +++
Documentation/PCI/endpoint/pci-ntb-howto.rst | 160 ++
drivers/misc/pci_endpoint_test.c | 1 -
drivers/ntb/hw/Kconfig | 1 +
drivers/ntb/hw/Makefile | 1 +
drivers/ntb/hw/epf/Kconfig | 6 +
drivers/ntb/hw/epf/Makefile | 1 +
drivers/ntb/hw/epf/ntb_hw_epf.c | 754 ++++++
.../pci/controller/cadence/pcie-cadence-ep.c | 60 +-
drivers/pci/endpoint/functions/Kconfig | 12 +
drivers/pci/endpoint/functions/Makefile | 1 +
drivers/pci/endpoint/functions/pci-epf-ntb.c | 2114 +++++++++++++++++
drivers/pci/endpoint/functions/pci-epf-test.c | 13 +-
drivers/pci/endpoint/pci-ep-cfs.c | 176 +-
drivers/pci/endpoint/pci-epc-core.c | 130 +-
drivers/pci/endpoint/pci-epf-core.c | 105 +-
include/linux/pci-epc.h | 39 +-
include/linux/pci-epf.h | 28 +-
include/linux/pci_ids.h | 1 +
22 files changed, 3932 insertions(+), 73 deletions(-)
create mode 100644 Documentation/PCI/endpoint/function/binding/pci-ntb.rst
create mode 100644 Documentation/PCI/endpoint/pci-ntb-function.rst
create mode 100644 Documentation/PCI/endpoint/pci-ntb-howto.rst
create mode 100644 drivers/ntb/hw/epf/Kconfig
create mode 100644 drivers/ntb/hw/epf/Makefile
create mode 100644 drivers/ntb/hw/epf/ntb_hw_epf.c
create mode 100644 drivers/pci/endpoint/functions/pci-epf-ntb.c
--
2.17.1
Powered by blists - more mailing lists