Background
==========
Proposed patch configures programmable ThunderX embedded network switch to
emulate functions of e-switch found in most industry standard NICs.
Embedded switch is pre-configured by loading firmware image which exposes
several firmware defined tables allowing configuration of VLAN and MAC filters.
Embedded switch configuration profile and the driver introduce the following
features:
* Support of configurable number of VFs per physical port (see num_vfs below)
* VLAN filters per VF
* Unicast MAC-DA filters per VF
* Multicast MAC-DA filters per VF
* Support of dedicated VF allowing packet mirroring of all traffic traversing
physical port (such VF is attached to the interface representing physical
port)
* Administrative VLAN enforcement per VF (i.e. inserting/overwriting VLAN tag
on all traffic originated by particular VF)
Each VF operates in two modes: a) full filter mode, where it receives only
registered MAC-DA/VLAN packets and b) multicast promiscuous mode. The latter
is enabled when VF reaches it's maximum MAC-DA filter limit: in this mode VF
receives all multicast and registered unicast MAC frames.
Special effort is made to track association of interface switching groups
to underlying physical ports: entry of /sys/class/net/<intf>/phys_port_name
contains string describing underlying physical port the interface is attached
to in a form <node-id>-<port-group-id>-<port>.
Set of patches include following changes:
1) Patch to original NIC drivers to enable internal switch, and load firmware
image.
2) Modification of VF driver to subscribe to interface MAC/VLAN ADD/DELETE
notifications and send them to the PF driver.
3) Modification of PF driver to receive MBOX interrupts from VF for ADD/DELETE
MAC/VLAN registrations.
4) E-switch initialization code
5) API to access firmware-defined tables embedded switch tables.
The following new parameter is introduced by the driver:
num_vfs: Number of VFs attached to each physical port, default value of this
parameter is 0, in which case driver operates in backward-compatible
switch bypass mode.
Set of patches uses below git branch
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
patchset generated against below commit
commit 69973b830859bc6529a7a0468ba0d80ee5117826
Author: Linus Torvalds <torva...@linux-foundation.org>
Date: Sun Dec 11 11:17:54 2016 -0800
Linux 4.9
Thank You!
-------------------------------------------------------------------------------
Satha Koteswara Rao (7):
* Patch 1:
* PF driver modified to enable HW filter support, changes works in
backward compatibility mode. Enable required things in Makefile.
Enable LZ4 dependecy inside config file
* Patch 2:
* VF driver changes to enable hooks to get kernel notifications
* Patch 3:
* Enable pause frame support
* Patch 4:
* HW Filter Initialization code and register access APIs
* Patch 5:
* Multiple VF's grouped together under single physical port called PF
group. PF Group maintainance API's.
* Patch 6:
* HW Filter Table access API's
* Patch 7:
* Get notifications from PF driver and configure filter block based on
requested data.
drivers/net/ethernet/cavium/Kconfig | 1 +
drivers/net/ethernet/cavium/thunder/Makefile | 2 +-
drivers/net/ethernet/cavium/thunder/nic.h | 203 ++-
drivers/net/ethernet/cavium/thunder/nic_main.c | 735 ++++++++-
drivers/net/ethernet/cavium/thunder/nicvf_main.c | 579 ++++++-
drivers/net/ethernet/cavium/thunder/pf_filter.c | 1678 +++++++++++++++++++++
drivers/net/ethernet/cavium/thunder/pf_globals.h | 78 +
drivers/net/ethernet/cavium/thunder/pf_locals.h | 365 +++++
drivers/net/ethernet/cavium/thunder/pf_reg.c | 660 ++++++++
drivers/net/ethernet/cavium/thunder/pf_vf.c | 207 +++
drivers/net/ethernet/cavium/thunder/tbl_access.c | 262 ++++
drivers/net/ethernet/cavium/thunder/tbl_access.h | 61 +
drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 25 +
drivers/net/ethernet/cavium/thunder/thunder_bgx.h | 7 +
14 files changed, 4712 insertions(+), 151 deletions(-)
create mode 100644 drivers/net/ethernet/cavium/thunder/pf_filter.c
create mode 100644 drivers/net/ethernet/cavium/thunder/pf_globals.h
create mode 100644 drivers/net/ethernet/cavium/thunder/pf_locals.h
create mode 100644 drivers/net/ethernet/cavium/thunder/pf_reg.c
create mode 100644 drivers/net/ethernet/cavium/thunder/pf_vf.c
create mode 100644 drivers/net/ethernet/cavium/thunder/tbl_access.c
create mode 100644 drivers/net/ethernet/cavium/thunder/tbl_access.h
--
1.8.3.1
