Commit graph

31 commits

Author SHA1 Message Date
Jakub Kicinski
2a15bb1aba nfp: bpf: move software reg helpers and cmd table out of translator
Move the software reg helpers and some static data to nfp_asm.c.
They are related to the previous patch, but move is done in a separate
commit for ease of review.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-09 09:51:02 -07:00
John Hurley
fd0dd1ab1e nfp: offload flower vxlan endpoint MAC addresses
Generate a list of MAC addresses of netdevs that could be used as VXLAN
tunnel end points. Give offloaded MACs an index for storage on the NFP in
the ranges:
0x100-0x1ff physical port representors
0x200-0x2ff VF port representors
0x300-0x3ff other offloads (e.g. vxlan netdevs, ovs bridges)

Assign phys and vf indexes based on unique 8 bit values in the port num.
Maintain list of other netdevs to ensure same netdev is not offloaded
twice and each gets a unique ID without exhausting the entries. Because
the IDs are unique but constant for a netdev, any changes are implemented
by overwriting the index on NFP.

Signed-off-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-26 21:27:36 -07:00
Pablo Cascón
25528d90f5 nfp: add basic SR-IOV ndo functions
Add basic ndo_set/get_vf to support SR-IOV.

VF to egress phy static mapping by now.

Use vfcfg ABI version 2 to write the info to the FW and collect
the return value from the mailbox.

Signed-off-by: Pablo Cascón <pablo.cascon@netronome.com>
Signed-off-by: Jimmy Kizito <jimmy.kizito@netronome.com>
Signed-off-by: Rami Tomer <rami.tomer@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-25 19:24:58 -07:00
Pieter Jansen van Vuuren
43f84b72c5 nfp: add metadata to each flow offload
Adds metadata describing the mask id of each flow and keeps track of
flows installed in hardware. Previously a flow could not be removed
from hardware as there was no way of knowing if that a specific flow
was installed. This is solved by storing the offloaded flows in a
hash table.

Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01 08:51:32 -07:00
Pieter Jansen van Vuuren
1a1e586f54 nfp: add basic action capabilities to flower offloads
Adds push vlan, pop vlan, output and drop action capabilities
to flower offloads.

Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01 08:51:32 -07:00
Pieter Jansen van Vuuren
5571e8c9f2 nfp: extend flower matching capabilities
Extends matching capabilities for flower offloads to include vlan,
layer 2, layer 3 and layer 4 type matches. This includes both exact
and wildcard matching.

Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01 08:51:32 -07:00
Pieter Jansen van Vuuren
8a2768732a nfp: provide infrastructure for offloading flower based TC filters
Adds a flower based TC offload handler for representor devices, this
is in addition to the bpf based offload handler. The changes in this
patch will be used in a follow-up patch to add tc flower offload to
the NFP.

The flower app enables tc offloads on representors by default.

Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01 08:51:32 -07:00
Jakub Kicinski
57ae676ee6 nfp: flower: add Kconfig for flower app
Give users an option not to build the flower-offload related code.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-27 15:48:50 -04:00
Simon Horman
1025351a88 nfp: add flower app
Add app for flower offload. At this point the PF netdev and phys port
representor netdevs are initialised. Follow-up work will add support for
VF and PF representors and beyond that offloading the flower classifier.

Based in part on work by Benjamin LaHaise and Bert van Leeuwen.

Signed-off-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-25 11:42:02 -04:00
Simon Horman
948faa46c0 nfp: add support for control messages for flower app
In preparation for adding a new flower app - targeted at offloading
the flower classifier - provide support for control message that it will
use to communicate with the NFP.

Based in part on work by Bert van Leeuwen.

Signed-off-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-25 11:42:01 -04:00
Simon Horman
5de73ee467 nfp: general representor implementation
Provide infrastructure to create and destroy representors of a given type.

Parts based on work by Bert van Leeuwen, Benjamin LaHaise,
and Jakub Kicinski.

Signed-off-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-25 11:42:01 -04:00
Jakub Kicinski
d9ae7f2bfe nfp: move eBPF offload files to BPF app directory
Pure move of eBPF offload files to BPF app directory,
only change the names and relative header location.
nfp_asm.h stays in the main dir and it doesn't really
have to include nfp_bpf.h.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31 17:58:13 -04:00
Jakub Kicinski
8aa0cb0074 nfp: move port init to apps
Start fleshing out the apps by turning the vNIC init code to
a per-app callback.  The two initial apps we have are NIC and
eBPF.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31 17:58:13 -04:00
David Brunecz
eefbde7e10 nfp: add hwmon support
Add support for retrieving temperature and power sensor and limits via NSP.

Signed-off-by: David Brunecz <david.brunecz@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30 11:27:06 -04:00
Simon Horman
1851f93fd2 nfp: add devlink support
Add initial devlink support.  This patch simply switches allocation
of per-adapter structure to devlink's priv and register devlink
with empty ops table.  See following patches for implementation
of particular ops.

We should now clear the app pointer on exit, this is how devlink
callbacks will know app is not initialized.

Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-26 11:01:48 -04:00
Jakub Kicinski
eb488c26d7 nfp: introduce nfp_port
Encapsulate port information into struct nfp_port.  nfp_port will
soon be extended to contain devlink_port information.  It also makes
it easier to reuse port-related code between vNICs and representors.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-22 14:59:04 -04:00
Jakub Kicinski
7ac9ebd567 nfp: introduce very minimal nfp_app
Introduce a concept of an application.  For now it's just grouping
pointers and serving as a layer of indirection.  It will help us
weaken the dependency on nfp_net in ethtool code.  Later series
will flesh out support for different apps in the driver.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-22 14:59:04 -04:00
David Brunecz
010e2f9cc5 nfp: add NSP routine to get static information
Retrieve identifying information from the NSP.  For now it only
contains versions of firmware subcomponents.

Signed-off-by: David Brunecz <david.brunecz@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-24 14:35:44 -04:00
Jakub Kicinski
8672103f41 nfp: move mutex code out of nfp_cppcore.c
After mutex cache removal we can put the mutex code in a separate
source file.  This makes it clear it doesn't play with internals
of struct nfp_cpp any more.

No functional changes.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-22 12:59:07 -07:00
Jakub Kicinski
63461a028f nfp: add the PF driver
Add PF driver for NFP4000 and NFP6000.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10 15:52:27 -05:00
Jakub Kicinski
1a64821c6a nfp: add support for service processor access
NFP Service Processor (NSP) is an ARM core inside the chip which
is responsible for management and control functions.  Add support
for chip reset, FW load and external module access using the NSP.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10 15:52:26 -05:00
Jakub Kicinski
5f30fe4d46 nfp: add rtsym support
Add support for using application FW symbol table to look up
location of information in device memory.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10 15:52:26 -05:00
Jakub Kicinski
ab78c1d286 nfp: add MIP reading support
MIP is a vector of information which linker can optionally include
in application firmware.  It will be used to retrieve the location
of symbol tables.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10 15:52:26 -05:00
Jakub Kicinski
a0d8e02c35 nfp: add support for reading nffw info
NFFW info is a resource which contains information about
the loaded application firmware.  Add code which will allow
us to decode it and retrieve MIP location.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10 15:52:25 -05:00
Jakub Kicinski
59a8474888 nfp: add hwinfo support
Hwinfo is a simple key=value store of information which is read
from the flash and populated during chip power on.  Add code to
look up information in it.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10 15:52:25 -05:00
Jakub Kicinski
f01a216157 nfp: add support for resources
Resource table is an array placed in a well defined location
in device's memory which describes device resources and contains
locks which have to be acquired to use them.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10 15:52:25 -05:00
Jakub Kicinski
4cb584e0ee nfp: add CPP access core
Command Push Pull is the name of NFP's network on a chip.
PCIe PF can access the interconnect through a number of mappings
controlled via Base Access Registers.  BARs allow the PF to issue
pretty much any command or address any memory on the chip.

Add appropriate logic and a handful of helper for simple operations
like reading scalars from memories.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10 15:52:25 -05:00
Jakub Kicinski
2633beb99b nfp: rename the driver and add new main file
Support for the PF driver is about to be added and will share
much of the code.  When the VF driver was added we planned to
maintain the PF driver as a separate module but have decided
that for our simple use case just maintaining a single module
is more reasonable.  Rename the driver to just "nfp" and update
the Kconfig.

While at it remove latent references to NFP3200.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-10 15:52:24 -05:00
Jakub Kicinski
7533fdc0f7 nfp: bpf: add hardware bpf offload
Add hardware bpf offload on our smart NICs.  Detect if
capable firmware is loaded and use it to load the code JITed
with just added translator onto programmable engines.

This commit only supports offloading cls_bpf in legacy mode
(non-direct action).

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 19:50:03 -04:00
Jakub Kicinski
cd7df56ed3 nfp: add BPF to NFP code translator
Add translator for JITing eBPF to operations which
can be executed on NFP's programmable engines.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 19:50:02 -04:00
Jakub Kicinski
4c3523623d net: add driver for Netronome NFP4000/NFP6000 NIC VFs
Add driver for Virtual Functions for the Netronome's
NFP-4000 and NFP-6000 based NICs.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 14:17:51 -05:00