From: Satha Koteswara Rao <satha.rao@caviumnetworks.com>
To: <linux-kernel@vger.kernel.org>
Cc: <sgoutham@cavium.com>, <rric@kernel.org>, <davem@davemloft.net>,
<david.daney@cavium.com>, <rvatsavayi@caviumnetworks.com>,
<derek.chickles@caviumnetworks.com>,
<satha.rao@caviumnetworks.com>, <philip.romanov@cavium.com>,
<netdev@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>
Subject: [RFC PATCH 0/7] ThunderX Embedded switch support
Date: Wed, 21 Dec 2016 14:16:44 +0530 [thread overview]
Message-ID: <1482310011-1862-1-git-send-email-satha.rao@caviumnetworks.com> (raw)
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 <torvalds@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
next reply other threads:[~2016-12-21 9:04 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-21 8:46 Satha Koteswara Rao [this message]
2016-12-21 8:46 ` [RFC PATCH 1/7] 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 Satha Koteswara Rao
2016-12-21 13:05 ` Sunil Kovvuri
2016-12-26 14:20 ` Koteshwar Rao, Satha
2016-12-27 4:19 ` Sunil Kovvuri
2016-12-21 8:46 ` [RFC PATCH 2/7] VF driver changes to enable hooks to get kernel notifications Satha Koteswara Rao
2016-12-21 8:46 ` [RFC PATCH 3/7] Enable pause frame support Satha Koteswara Rao
[not found] ` <DM5PR07MB2889471E0668C95BD2A266709E930@DM5PR07MB2889.namprd07.prod.outlook.com>
2016-12-26 14:21 ` Koteshwar Rao, Satha
2016-12-21 8:46 ` [RFC PATCH 4/7] HW Filter Initialization code and register access APIs Satha Koteswara Rao
2016-12-21 12:36 ` Sunil Kovvuri
2016-12-26 14:13 ` Koteshwar Rao, Satha
2016-12-21 8:46 ` [RFC PATCH 5/7] Multiple VF's grouped together under single physical port called PF group PF Group maintainance API's Satha Koteswara Rao
2016-12-21 12:43 ` Sunil Kovvuri
2016-12-26 14:16 ` Koteshwar Rao, Satha
2016-12-21 8:46 ` [RFC PATCH 6/7] HW Filter Table access API's Satha Koteswara Rao
2016-12-21 8:46 ` [RFC PATCH 7/7] Get notifications from PF driver and configure filter block based on request data Satha Koteswara Rao
2016-12-21 12:03 ` [RFC PATCH 0/7] ThunderX Embedded switch support Sunil Kovvuri
2016-12-26 14:04 ` Koteshwar Rao, Satha
2016-12-26 14:55 ` Andrew Lunn
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