[dpdk-dev] [PATCH v3 0/6] Introduce Intel FPGA BUS
Rosen Xu
rosen.xu at intel.com
Wed Mar 28 11:29:50 CEST 2018
Intel FPGA BUS in DPDK
-------------------------
This patch set introduces Intel FPGA BUS support in DPDK.
v3 updates:
===========
- Remove all modifications of bus scan and probe
- FPGA BUS Scan is trigged by hotplug of Rawdev
- Took Modifications of comments
- Move AFU Device to IFPGA
- FPGA BUS Scan depend on it¡¯s IFPGA Rawdev
- Add Build Macros for FPGA BUS and IFPGA Rawdev
Questions
=========
Why not PCI Bus?
All of the AFUs of one FPGA may share same PCI BDF.
Why not vdev Bus?
Because AFUs depend on Rawdev, and it's hardware specpic.
Motivation
==========
FPGA is used more and more widely in Cloud and NFV, one primary reason is
that FPGA not only provide ASIC performance but also it's more flexible
than ASIC. FPGA use Partial Reconfigure(PR) Parts of Bitstream to achieve
its flexibility. Another reason is that one FPGA can be shared
by different Users, and each User can use some of AFUs of One FPGA.
That means One FPGA Device Bitstream is divided into many Parts of
Bitstream(each Part of Bitstream is defined as AFU-Accelerated
Function Unit), and each AFU is a Hardware Acceleration Unit and
it can dynamically Reload respectively.
Proposed Solution
=================
- Involve Rawdev to take FPGA Partial Configuration(Download/PR)
- Defined FPGA-BUS for Acceleration Drivers of AFUs
- FPGA PCI Scan(1st Scan) follows DPDK UIO/VFIO PCI Scan Process,
probe Intel FPGA Rawdev Driver. FPGA-BUS scan is called, but AFU
depend on Rawdev, so this scan doesn't trig AFU device create.
- AFU Scan(2nd Scan) bind DPDK Driver to FPGA Partial-Bitstream.
This scan is trigged by hotplug of IFPGA Rawdev probe, in this
scan the AFUs will be created and their dirves are also probed.
Scope
=====
The Intel FPGA BUS implementation is target towards various FPGA Devices
use PR to provide many Acceleration Function. Specific PMDs may also
bind to its AFU. And Applications don't care they are using ASIC
Acceleration or FPGA AFU Acceleration.
Status
=====
With integrating Intel PSG FPGA Software Stack OPAE(Open Programmable
Acceleration Engine) Share Code, Intel FPGA BUS runs well in
Intel PSG FPGA Cards.
Rosen Xu (6):
Add Intel FPGA BUS Command Parse Code
config/common_base: Add Intel FPGA Build Configuration Macro
mk/rte.app.mk: Add Intel FPGA Bus Build Configuration Macro To App
Script
drivers/bus: Add Intel FPGA Bus Lib Code
drivers/raw/ifpga_rawdev: Add Intel FPGA Rawdev Driver Code
drivers/raw/ifpga_rawdev: Add Intel FPGA OPAE Share Code
config/common_base | 6 +
drivers/bus/Makefile | 1 +
drivers/bus/ifpga/Makefile | 33 +
drivers/bus/ifpga/ifpga_bus.c | 562 +++++++
drivers/bus/ifpga/ifpga_common.c | 141 ++
drivers/bus/ifpga/ifpga_common.h | 22 +
drivers/bus/ifpga/ifpga_logs.h | 31 +
drivers/bus/ifpga/rte_bus_ifpga.h | 140 ++
drivers/bus/ifpga/rte_bus_ifpga_version.map | 8 +
drivers/raw/Makefile | 1 +
drivers/raw/ifpga_rawdev/Makefile | 35 +
drivers/raw/ifpga_rawdev/base/Makefile | 54 +
drivers/raw/ifpga_rawdev/base/ifpga_api.c | 543 +++++++
drivers/raw/ifpga_rawdev/base/ifpga_api.h | 77 +
drivers/raw/ifpga_rawdev/base/ifpga_compat.h | 84 +
drivers/raw/ifpga_rawdev/base/ifpga_defines.h | 1696 ++++++++++++++++++++
drivers/raw/ifpga_rawdev/base/ifpga_enumerate.c | 861 ++++++++++
drivers/raw/ifpga_rawdev/base/ifpga_enumerate.h | 38 +
drivers/raw/ifpga_rawdev/base/ifpga_feature_dev.c | 340 ++++
drivers/raw/ifpga_rawdev/base/ifpga_feature_dev.h | 197 +++
drivers/raw/ifpga_rawdev/base/ifpga_fme.c | 763 +++++++++
drivers/raw/ifpga_rawdev/base/ifpga_fme_dperf.c | 328 ++++
drivers/raw/ifpga_rawdev/base/ifpga_fme_error.c | 430 +++++
drivers/raw/ifpga_rawdev/base/ifpga_fme_iperf.c | 742 +++++++++
drivers/raw/ifpga_rawdev/base/ifpga_fme_pr.c | 395 +++++
drivers/raw/ifpga_rawdev/base/ifpga_hw.h | 154 ++
drivers/raw/ifpga_rawdev/base/ifpga_port.c | 735 +++++++++
drivers/raw/ifpga_rawdev/base/ifpga_port_error.c | 236 +++
drivers/raw/ifpga_rawdev/base/opae_debug.c | 126 ++
drivers/raw/ifpga_rawdev/base/opae_debug.h | 46 +
drivers/raw/ifpga_rawdev/base/opae_hw_api.c | 389 +++++
drivers/raw/ifpga_rawdev/base/opae_hw_api.h | 276 ++++
drivers/raw/ifpga_rawdev/base/opae_ifpga_hw_api.c | 173 ++
drivers/raw/ifpga_rawdev/base/opae_ifpga_hw_api.h | 306 ++++
drivers/raw/ifpga_rawdev/base/opae_osdep.h | 111 ++
.../ifpga_rawdev/base/osdep_raw/osdep_generic.h | 104 ++
.../ifpga_rawdev/base/osdep_rte/osdep_generic.h | 72 +
drivers/raw/ifpga_rawdev/ifpga_rawdev.c | 492 ++++++
drivers/raw/ifpga_rawdev/ifpga_rawdev.h | 37 +
drivers/raw/ifpga_rawdev/ifpga_rawdev_example.c | 98 ++
.../raw/ifpga_rawdev/rte_ifpga_rawdev_version.map | 4 +
lib/librte_eal/common/eal_common_options.c | 8 +-
lib/librte_eal/common/eal_options.h | 2 +
mk/rte.app.mk | 3 +
44 files changed, 10899 insertions(+), 1 deletion(-)
create mode 100644 drivers/bus/ifpga/Makefile
create mode 100644 drivers/bus/ifpga/ifpga_bus.c
create mode 100644 drivers/bus/ifpga/ifpga_common.c
create mode 100644 drivers/bus/ifpga/ifpga_common.h
create mode 100644 drivers/bus/ifpga/ifpga_logs.h
create mode 100644 drivers/bus/ifpga/rte_bus_ifpga.h
create mode 100644 drivers/bus/ifpga/rte_bus_ifpga_version.map
create mode 100644 drivers/raw/ifpga_rawdev/Makefile
create mode 100644 drivers/raw/ifpga_rawdev/base/Makefile
create mode 100644 drivers/raw/ifpga_rawdev/base/ifpga_api.c
create mode 100644 drivers/raw/ifpga_rawdev/base/ifpga_api.h
create mode 100644 drivers/raw/ifpga_rawdev/base/ifpga_compat.h
create mode 100644 drivers/raw/ifpga_rawdev/base/ifpga_defines.h
create mode 100644 drivers/raw/ifpga_rawdev/base/ifpga_enumerate.c
create mode 100644 drivers/raw/ifpga_rawdev/base/ifpga_enumerate.h
create mode 100644 drivers/raw/ifpga_rawdev/base/ifpga_feature_dev.c
create mode 100644 drivers/raw/ifpga_rawdev/base/ifpga_feature_dev.h
create mode 100644 drivers/raw/ifpga_rawdev/base/ifpga_fme.c
create mode 100644 drivers/raw/ifpga_rawdev/base/ifpga_fme_dperf.c
create mode 100644 drivers/raw/ifpga_rawdev/base/ifpga_fme_error.c
create mode 100644 drivers/raw/ifpga_rawdev/base/ifpga_fme_iperf.c
create mode 100644 drivers/raw/ifpga_rawdev/base/ifpga_fme_pr.c
create mode 100644 drivers/raw/ifpga_rawdev/base/ifpga_hw.h
create mode 100644 drivers/raw/ifpga_rawdev/base/ifpga_port.c
create mode 100644 drivers/raw/ifpga_rawdev/base/ifpga_port_error.c
create mode 100644 drivers/raw/ifpga_rawdev/base/opae_debug.c
create mode 100644 drivers/raw/ifpga_rawdev/base/opae_debug.h
create mode 100644 drivers/raw/ifpga_rawdev/base/opae_hw_api.c
create mode 100644 drivers/raw/ifpga_rawdev/base/opae_hw_api.h
create mode 100644 drivers/raw/ifpga_rawdev/base/opae_ifpga_hw_api.c
create mode 100644 drivers/raw/ifpga_rawdev/base/opae_ifpga_hw_api.h
create mode 100644 drivers/raw/ifpga_rawdev/base/opae_osdep.h
create mode 100644 drivers/raw/ifpga_rawdev/base/osdep_raw/osdep_generic.h
create mode 100644 drivers/raw/ifpga_rawdev/base/osdep_rte/osdep_generic.h
create mode 100644 drivers/raw/ifpga_rawdev/ifpga_rawdev.c
create mode 100644 drivers/raw/ifpga_rawdev/ifpga_rawdev.h
create mode 100644 drivers/raw/ifpga_rawdev/ifpga_rawdev_example.c
create mode 100644 drivers/raw/ifpga_rawdev/rte_ifpga_rawdev_version.map
--
1.8.3.1
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