Add install and remove offload functionality for qos offloads. We
first check that a police filter can be implemented by the VF rate
limiting feature in hw, then we install the filter via the qos
infrastructure. Finally we implement the mechanism for removing
these types of filters.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Introduce matchall filter offload infrastructure that is needed to
offload qos features like policing. Subsequent patches will make
use of police-filters for ingress rate limiting.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A recent addition to NFP introduced a function that formats a string with
a size_t variable. This is formatted with %ld which is fine on 64-bit
architectures but produces a compile warning on 32-bit architectures.
Fix this by using the z length modifier.
Fixes: a6156a6ab0f9 ("nfp: flower: handle merge hint messages")
Signed-off-by: John Hurley <john.hurley@netronome.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The nfp_flower_copy_pre_actions function introduces a case statement with
an intentional fallthrough. However, this generates a warning if built
with the -Wimplicit-fallthrough flag.
Remove the warning by adding a fall through comment.
Fixes: 1c6952ca58 ("nfp: flower: generate merge flow rule")
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Jiong Wang <jiong.wang@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A merge flow is formed from 2 sub flows. The match fields of the merge are
the same as the first sub flow that has formed it, with the actions being
a combination of the first and second sub flow. Therefore, a merge flow
should replace sub flow 1 when offloaded.
Offload valid merge flows by using a new 'flow mod' message type to
replace an existing offloaded rule. Track the deletion of sub flows that
are linked to a merge flow and revert offloaded merge rules if required.
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>
With the merging of 2 sub flows, a new 'merge' flow will be created and
written to FW. The TC layer is unaware that the merge flow exists and will
request stats from the sub flows. Conversely, the FW treats a merge rule
the same as any other rule and sends stats updates to the NFP driver.
Add links between merge flows and their sub flows. Use these links to pass
merge flow stats updates from FW to the underlying sub flows, ensuring TC
stats requests are handled correctly. The updating of sub flow stats is
done on (the less time critcal) TC stats requests rather than on FW stats
update.
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>
When combining 2 sub_flows to a single 'merge flow' (assuming the merge is
valid), the merge flow should contain the same match fields as sub_flow 1
with actions derived from a combination of sub_flows 1 and 2. This action
list should have all actions from sub_flow 1 with the exception of the
output action that triggered the 'implicit recirculation' by sending to
an internal port, followed by all actions of sub_flow 2. Any pre-actions
in either sub_flow should feature at the start of the action list.
Add code to generate a new merge flow and populate the match and actions
fields based on the sub_flows. The offloading of the flow is left to
future patches.
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>
Two flows can be merged if the second flow (after recirculation) matches
on bits that are either matched on or explicitly set by the first flow.
This means that if a packet hits flow 1 and recirculates then it is
guaranteed to hit flow 2.
Add a 'can_merge' function that determines if 2 sub_flows in a merge hint
can be validly merged to a single flow.
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>
If a merge hint is received containing 2 flows that are matched via an
implicit recirculation (sending to and matching on an internal port), fw
reports that the flows (called sub_flows) may be able to be combined to a
single flow.
Add infastructure to accept and process merge hint messages. The actual
merging of the flows is left as a stub call.
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>
Each flow is given a context ID that the fw uses (along with its cookie)
to identity the flow. The flows stats are updated by the fw via this ID
which is a reference to a pre-allocated array entry.
In preparation for flow merge code, enable the nfp_fl_payload structure to
be accessed via this stats context ID. Rather than increasing the memory
requirements of the pre-allocated array, add a new rhashtable to associate
each active stats context ID with its rule payload.
While adding new code to the compile metadata functions, slightly
restructure the existing function to allow for cleaner, easier to read
error handling.
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>
The neighbour table in the FW only accepts next hop entries if the egress
port is an nfp repr. Modify this to allow the next hop to be an internal
port. This means that if a packet is to egress to that port, it will
recirculate back into the system with the internal port becoming its
ingress port.
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>
FW may receive a packet with its ingress port marked as an internal port.
If a rule does not exist to match on this port, the packet will be sent to
the NFP driver. Modify the flower app to detect packets from such internal
ports and convert the ingress port to the correct kernel space netdev.
At this point, it is assumed that fallback packets from internal ports are
to be sent out said port. Therefore, set the redir_egress bool to true on
detection of these ports.
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>
Currently, it is assumed that fallback packets will be from reprs. Modify
this to allow an app to receive non-repr ports from the fallback channel -
e.g. from an internal port. If such a packet is received, do not update
repr stats.
Change the naming function calls so as not to imply it will always be a
repr netdev returned. Add the option to set a bool value to redirect a
fallback packet out the returned port rather than RXing it. Setting of
this bool in subsequent patches allows the handling of packets falling
back when they are due to egress an internal port.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Recent FW modifications allow the offloading of non repr ports. These
ports exist internally on the NFP. So if a rule outputs to an 'internal'
port, then the packet will recirculate back into the system but will now
have this internal port as it's incoming port. These ports are indicated
by a specific type field combined with an 8 bit port id.
Add private app data to assign additional port ids for use in offloads.
Provide functions to lookup or create new ids when a rule attempts to
match on an internal netdev - the only internal netdevs currently
supported are of type openvswitch. Have a netdev notifier to release
port ids on netdev unregister.
OvS offloads rules that match on internal ports as TC egress filters.
Ensure that such rules are accepted by the driver.
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>
Write to a FW symbol to indicate that the driver supports flow merging. If
this symbol does not exist then flow merging and recirculation is not
supported on the FW. If support is available, add a stub to deal with FW
to kernel merge hint messages.
Full flow merging requires the firmware to support of flow mods. If it
does not, then do not attempt to 'turn on' flow merging.
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>
Minor comment merge conflict in mlx5.
Staging driver has a fixup due to the skb->xmit_more changes
in 'net-next', but was removed in 'net'.
Signed-off-by: David S. Miller <davem@davemloft.net>
With the introduction of flow_action_for_each pedit actions are no
longer grouped together, instead pedit actions are broken out per
32 byte word. This results in an inefficient use of the action list
that is pushed to hardware where each 32 byte word becomes its own
action. Therefore we combine groups of 32 byte word before sending
the action list to hardware.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We no longer set CFI when pushing vlan tags, therefore we remove
the CFI bit from push vlan.
Fixes: 1a1e586f54 ("nfp: add basic action capabilities to flower offloads")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Signed-off-by: Louis Peens <louis.peens@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace vlan CFI bit with a vlan present bit that indicates the
presence of a vlan tag. Previously the driver incorrectly assumed
that an vlan id of 0 is not matchable, therefore we indicate vlan
presence with a vlan present bit.
Fixes: 5571e8c9f2 ("nfp: extend flower matching capabilities")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Signed-off-by: Louis Peens <louis.peens@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Added IANA_VXLAN_UDP_PORT (4789) definition to vxlan header file so it
can be used by drivers instead of local definition.
Updated drivers which locally defined it as 4789 to use it.
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Cc: John Hurley <john.hurley@netronome.com>
Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
Cc: Yunsheng Lin <linyunsheng@huawei.com>
Cc: Peng Li <lipeng321@huawei.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Move the definition of the default Geneve udp port from the geneve
source to the header file, so we can re-use it from drivers.
Modify existing drivers to use it.
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Cc: John Hurley <john.hurley@netronome.com>
Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Check mask fields of tcp and ip flags when setting the corresponding mask
flag used in hardware.
Fixes: 8f2566225a ("flow_offload: add flow_rule and flow_match")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Recent cls_flower offload rewrite added a double new line.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:
struct foo {
int stuff;
void *entry[];
};
size = sizeof(struct foo) + count * sizeof(void *);
instance = alloc(size, GFP_KERNEL);
Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:
instance = alloc(struct_size(instance, entry, count), GFP_KERNEL);
Notice that, in this case, variable size is not necessary, hence
it is removed.
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Static checker warning complains on uninitialized variable:
drivers/net/ethernet/netronome/nfp/flower/action.c:618 nfp_fl_pedit()
error: uninitialized symbol 'idx'.
Which is actually never used from the functions that take it as
parameter. Remove it.
Fixes: 7386788175 ("drivers: net: use flow action infrastructure")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
NFP only supports SWITCHDEV_ATTR_ID_PORT_PARENT_ID, which makes it a
great candidate to be converted to use the ndo_get_port_parent_id() NDO
instead of implementing switchdev_port_attr_get().
Since NFP uses switchdev_port_same_parent_id() convert it to use
netdev_port_same_parent_id().
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch updates drivers to use the new flow action infrastructure.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch provides the flow_stats structure that acts as container for
tc_cls_flower_offload, then we can use to restore the statistics on the
existing TC actions. Hence, tcf_exts_stats_update() is not used from
drivers anymore.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch wraps the dissector key and mask - that flower uses to
represent the matching side - around the flow_match structure.
To avoid a follow up patch that would edit the same LoCs in the drivers,
this patch also wraps this new flow match structure around the flow rule
object. This new structure will also contain the flow actions in follow
up patches.
This introduces two new interfaces:
bool flow_rule_match_key(rule, dissector_id)
that returns true if a given matching key is set on, and:
flow_rule_match_XYZ(rule, &match);
To fetch the matching side XYZ into the match container structure, to
retrieve the key and the mask with one single call.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A MAC address is not necessarily a unique identifier for a netdev. Drivers
such as Linux bonds, for example, can apply the same MAC address to the
upper layer device and all lower layer devices.
NFP MAC offload for tunnel decap includes port verification for reprs but
also supports the offload of non-repr MAC addresses by assigning 'global'
indexes to these. This means that the FW will not verify the incoming port
of a packet matching this destination MAC.
Modify the MAC offload logic to assign global indexes based on MAC address
instead of net device (as it currently does). Use this to allow multiple
devices to share the same MAC. In other words, if a repr shares its MAC
address with another device then give the offloaded MAC a global index
rather than associate it with an ingress port. Track this so that changes
can be reverted as MACs stop being shared.
Implement this by removing the current list based assignment of global
indexes and replacing it with an rhashtable that maps an offloaded MAC
address to the number of devices sharing it, distributing global indexes
based on this.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It is possible to receive a MAC address change notification without the
net device being down (e.g. when an OvS bridge is assigned the same MAC as
a port added to it). This means that an offloaded MAC address may not be
removed if its device gets a new address.
Maintain a record of the offloaded MAC addresses for each repr and netdev
assigned a MAC offload index. Use this to delete the (now expired) MAC if
a change of address event occurs. Only handle change address events if the
device is already up - if not then the netdev up event will handle it.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
NFP repr netdevs contain private data that can store per port information.
In certain cases, the NFP driver offloads information from non-repr ports
(e.g. tunnel ports). As the driver does not have control over non-repr
netdevs, it cannot add/track private data directly to the netdev struct.
Add infastructure to store private information on any non-repr netdev that
is offloaded at a given time. This is used in a following patch to track
offloaded MAC addresses for non-reprs and enable correct house keeping on
address changes.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When a potential tunnel end point goes down then its MAC address should
not be matchable on the NFP.
Implement a delete message for offloaded MACs and call this on net device
down. While at it, remove the actions on register and unregister netdev
events. A MAC should only be offloaded if the device is up. Note that the
netdev notifier will replay any notifications for UP devices on
registration so NFP can still offload ports that exist before the driver
is loaded. Similarly, devices need to go down before they can be
unregistered so removal of offloaded MACs is only required on down events.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Potential MAC destination addresses for tunnel end-points are offloaded to
firmware. This was done by building a list of such MACs and writing to
firmware as blocks of addresses.
Simplify this code by removing the list format and sending a new message
for each offloaded MAC.
This is in preparation for delete MAC messages. There will be one delete
flag per message so we cannot assume that this applies to all addresses
in a list.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently MAC addresses of all repr netdevs, along with selected non-NFP
controlled netdevs, are offloaded to FW as potential tunnel end-points.
However, the addresses of VF and PF reprs are meaningless outside of
internal communication and it is only those of physical port reprs
required.
Modify the MAC address offload selection code to ignore VF/PF repr devs.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Recent additions to the flower app private data have grouped the variables
of a given feature into a struct and added that struct to the main private
data struct.
In keeping with this, move all tunnel related private data to their own
struct. This has no affect on functionality but improves readability and
maintenance of the code.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Adds support for multiple memory units which are used for filter
offloads. Each filter is assigned a stats id, the MSBs of the id are
used to determine which memory unit the filter should be offloaded
to. The number of available memory units that could be used for filter
offload is obtained from HW. A simple round robin technique is used to
allocate and distribute the ids across memory units.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
QA tests report occasional timeouts on REIFY message replies. Profiling
of the two cmesg reply types under burst conditions, with a 12-core host
under heavy cpu and io load (stress --cpu 12 --io 12), show both PHY MTU
change and REIFY replies can exceed the 10ms timeout. The maximum MTU
reply wait under burst is 16ms, while the maximum REIFY wait under 40 VF
burst is 12ms. Using a 4 VF REIFY burst results in an 8ms maximum wait.
A larger VF burst does increase the delay, but not in a linear enough
way to justify a scaled REIFY delay. The worse case values between
MTU and REIFY appears close enough to justify a common timeout. Pick a
conservative 40ms to make a safer future proof common reply timeout. The
delay only effects the failure case.
Change the REIFY timeout mechanism to use wait_event_timeout() instead
of wait_event_interruptible_timeout(), to match the MTU code. In the
current implementation, theoretically, a signal could interrupt the
REIFY waiting period, with a return code of ERESTARTSYS. However, this is
caught under the general timeout error code EIO. I cannot see the benefit
of exposing the REIFY waiting period to signals with such a short delay
(40ms), while the MTU mechnism does not use the same logic. In the absence
of any reply (wakeup() call), both reply types will wake up the task after
the timeout period. The REIFY timeout applies to the entire representor
group being instantiated (e.g. VFs), while the MTU timeout apples to a
single PHY MTU change.
Signed-off-by: Fred Lotter <frederik.lotter@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lots of conflicts, by happily all cases of overlapping
changes, parallel adds, things of that nature.
Thanks to Stephen Rothwell, Saeed Mahameed, and others
for their guidance in these resolutions.
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously the identifier used for indirect block callback registry and
for block rule cb registry (when done via indirect blocks) was the pointer
to the netdev we were interested in receiving updates on. This worked fine
if a single app existed that registered one callback per netdev of
interest. However, if multiple cards are in place and, in turn, multiple
apps, then each app may register the same callback with the same
identifier to both the netdev's indirect block cb list and to a block's cb
list. This can lead to EEXIST errors and/or incorrect cb deletions.
Prevent this conflict by using the app pointer as the identifier for
netdev indirect block cb registry, allowing each app to register a unique
callback per netdev. For block cb registry, the same app may register
multiple cbs to the same block if using TC shared blocks. Instead of the
app, use the pointer to the allocated cb_priv data as the identifier here.
This means that there can be a unique block callback for each app/netdev
combo.
Fixes: 3166dd07a9 ("nfp: flower: offload tunnel decap rules via indirect TC blocks")
Reported-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously we did not ensure tcp flags have a place to be stored
when using IPv6. We correct this by including IPv6 key layer when
we match tcp flags and the IPv6 key layer has not been included
already.
Fixes: 07e1671cfc ("nfp: flower: refactor shared ip header in match offload")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Several conflicts, seemingly all over the place.
I used Stephen Rothwell's sample resolutions for many of these, if not
just to double check my own work, so definitely the credit largely
goes to him.
The NFP conflict consisted of a bug fix (moving operations
past the rhashtable operation) while chaning the initial
argument in the function call in the moved code.
The net/dsa/master.c conflict had to do with a bug fix intermixing of
making dsa_master_set_mtu() static with the fixing of the tagging
attribute location.
cls_flower had a conflict because the dup reject fix from Or
overlapped with the addition of port range classifiction.
__set_phy_supported()'s conflict was relatively easy to resolve
because Andrew fixed it in both trees, so it was just a matter
of taking the net-next copy. Or at least I think it was :-)
Joe Stringer's fix to the handling of netns id 0 in bpf_sk_lookup()
intermixed with changes on how the sdif and caller_net are calculated
in these code paths in net-next.
The remaining BPF conflicts were largely about the addition of the
__bpf_md_ptr stuff in 'net' overlapping with adjustments and additions
to the relevant data structure where the MD pointer macros are used.
Signed-off-by: David S. Miller <davem@davemloft.net>
For flow offload adds, if the rhash insert code fails, the flow will still
have been offloaded but the reference to it in the driver freed.
Re-order the offload setup calls to ensure that a flow will only be written
to FW if a kernel reference is held and stored in the rhashtable. Remove
this hashtable entry if the offload fails.
Fixes: c01d0efa51 ("nfp: flower: use rhashtable for flow caching")
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Calling nfp_compile_flow_metadata both assigns a stats context and
increments a ref counter on (or allocates) a mask id table entry. These
are released by the nfp_modify_flow_metadata call on flow deletion,
however, if a flow add fails after metadata is set then the flow entry
will be deleted but the metadata assignments leaked.
Add an error path to the flow add offload function to ensure allocated
metadata is released in the event of an offload fail.
Fixes: 81f3ddf254 ("nfp: add control message passing capabilities to flower offloads")
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Recent changes to NFP mean that stats updates from fw to driver no longer
require a flow lookup and (because egdev offload has been removed) the
ingress netdev for a lookup is now always known.
Remove obsolete code in a flow lookup that matches on host context and
that allows for a netdev to be NULL.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously, only tunnel decap rules required egdev registration for
offload in NFP. These are now supported via indirect TC block callbacks.
Remove the egdev code from NFP.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously, TC block tunnel decap rules were only offloaded when a
callback was triggered through registration of the rules egress device.
This meant that the driver had no access to the ingress netdev and so
could not verify it was the same tunnel type that the rule implied.
Register tunnel devices for indirect TC block offloads in NFP, giving
access to new rules based on the ingress device rather than egress. Use
this to verify the netdev type of VXLAN and Geneve based rules and offload
the rules to HW if applicable.
Tunnel registration is done via a netdev notifier. On notifier
registration, this is triggered for already existing netdevs. This means
that NFP can register for offloads from devices that exist before it is
loaded (filter rules will be replayed from the TC core). Similarly, on
notifier unregister, a call is triggered for each currently active netdev.
This allows the driver to unregister any indirect block callbacks that may
still be active.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Both the actions and tunnel_conf files contain local functions that check
the type of an input netdev. In preparation for re-use with tunnel offload
via indirect blocks, move these to static inline functions in a header
file.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously the offload functions in NFP assumed that the ingress (or
egress) netdev passed to them was an nfp repr.
Modify the driver to permit the passing of non repr netdevs as the ingress
device for an offload rule candidate. This may include devices such as
tunnels. The driver should then base its offload decision on a combination
of ingress device and egress port for a rule.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Offload of geneve decap rules is supported in NFP. Include geneve in the
check for supported types.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make use of the recently added VXLAN and geneve helper functions to
determine the type of the netdev from its rtnl_link_ops.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use driver's common notifier for LAG and tunnel configuration.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
nfp_fl_lag_changels_event() never fails, and therefore we would
never return NOTIFY_BAD for NETDEV_CHANGELOWERSTATE. Make this
clearer by changing nfp_fl_lag_changels_event()'s return type
to void.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Returning an error from a notifier means we want to veto the change.
We shouldn't veto NETDEV_UNREGISTER just because we couldn't find
the tracking info for given master.
I can't seem to find a way to trigger this unless we have some
other bug, so it's probably not fix-worthy.
While at it move the checking if the netdev really is of interest
into the handling functions, like we do for other events.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For flower tunnel offloads FW has to be informed about MAC addresses
of tunnel devices. We use a netdev notifier to keep track of these
addresses.
Remove unnecessary loop over netdevices after notifier is registered.
The intention of the loop was to catch devices which already existed
on the system before nfp driver got loaded, but netdev notifier will
replay NETDEV_REGISTER events.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add ipv6 set flow label and hop limit action offload. Since pedit sets
headers per 4 byte word, we need to ensure that setting either version,
priority, payload_len or nexthdr does not get offloaded.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add ipv4 set ttl and tos action offload. Since pedit sets headers per 4
byte word, we need to ensure that setting either version, ihl, protocol,
total length or checksum does not get offloaded.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/sched/cls_api.c has overlapping changes to a call to
nlmsg_parse(), one (from 'net') added rtm_tca_policy instead of NULL
to the 5th argument, and another (from 'net-next') added cb->extack
instead of NULL to the 6th argument.
net/ipv4/ipmr_base.c is a case of a bug fix in 'net' being done to
code which moved (to mr_table_dump)) in 'net-next'. Thanks to David
Ahern for the heads up.
Signed-off-by: David S. Miller <davem@davemloft.net>
Add the ability to determine whether a netdev is a VxLAN netdev by
calling the above mentioned function that checks the netdev's
rtnl_link_ops.
This will allow modules to identify netdev events involving a VxLAN
netdev and act accordingly. For example, drivers capable of VxLAN
offload will need to configure the underlying device when a VxLAN netdev
is being enslaved to an offloaded bridge.
Convert nfp to use the newly introduced helper.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously when populating the set ipv6 address action, we incorrectly
made use of pedit's key index to determine which 32bit word should be
set. We now calculate which word has been selected based on the offset
provided by the pedit action.
Fixes: 354b82bb32 ("nfp: add set ipv6 source and destination address")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously we only allowed a single header key per pedit action to
change the header. This used to result in the last header key in the
pedit action to overwrite previous headers. We now keep track of them
and allow multiple header keys per pedit action.
Fixes: c0b1bd9a8b ("nfp: add set ipv4 header action flower offload")
Fixes: 354b82bb32 ("nfp: add set ipv6 source and destination address")
Fixes: f8b7b0a6b1 ("nfp: add set tcp and udp header action flower offload")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously we did not correctly change headers when using multiple
pedit actions with partial masks. We now take this into account and
no longer just commit the last pedit action.
Fixes: c0b1bd9a8b ("nfp: add set ipv4 header action flower offload")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace the repeated license text with SDPX identifiers.
While at it bump the Copyright dates for files we touched
this year.
Signed-off-by: Edwin Peer <edwin.peer@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Nic Viljoen <nick.viljoen@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Read the host context count symbols provided by firmware and use
it to determine the number of allocated stats ids. Previously it
won't be possible to offload more than 2^17 filter even if FW was
able to do so.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make use of an array stats instead of storing stats per flow which
would require a hash lookup at critical times.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make use of relativistic hash tables for tracking flows instead
of fixed sized hash tables.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This fixes a bug where ipv6 tunnels would report that it is
getting offloaded to hardware but would actually be rejected
by hardware.
Fixes: b27d6a95a7 ("nfp: compile flower vxlan tunnel set actions")
Signed-off-by: Louis Peens <louis.peens@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously we only checked if the vlan id field is present when trying
to match a vlan tag. The vlan id and vlan pcp field should be treated
independently.
Fixes: 5571e8c9f2 ("nfp: extend flower matching capabilities")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After commit 90b73b77d0, list_head is no longer needed.
Now we just need to convert the list iteration to array
iteration for drivers.
Fixes: 90b73b77d0 ("net: sched: change action API to use array of pointers to actions")
Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Introduce a new layer for matching on geneve options. This allows
offloading filters configured to match geneve with options.
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>
Introduce new push geneve option action. This allows offloading
filters configured to entunnel geneve with options.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The addition of FLOW_DISSECTOR_KEY_ENC_IP to TC flower means that the ToS
and TTL of the tunnel header can now be matched on.
Extend the NFP tunnel match function to include these new fields.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The TTL for encapsulating headers in IPv4 UDP tunnels is taken from a
route lookup. Modify this to first check if a user has specified a TTL to
be used in the TC action.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The BTF conflicts were simple overlapping changes.
The virtio_net conflict was an overlap of a fix of statistics counter,
happening alongisde a move over to a bonafide statistics structure
rather than counting value on the stack.
Signed-off-by: David S. Miller <davem@davemloft.net>
Function nfp_flower_repr_get_type_and_port expects an enum nfp_repr_type
return value but, if the repr type is unknown, returns a value of type
enum nfp_flower_cmsg_port_type. This means that if FW encodes the port
ID in a way the driver does not understand instead of dropping the frame
driver may attribute it to a physical port (uplink) provided the port
number is less than physical port count.
Fix this and ensure a net_device of NULL is returned if the repr can not
be determined.
Fixes: 1025351a88 ("nfp: add flower app")
Signed-off-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Now that we have offload replay infrastructure added by
commit 326367427c ("net: sched: call reoffload op on block callback reg")
and flows are guaranteed to be removed correctly, we can revert
commit 951a8ee6de ("nfp: reject binding to shared blocks").
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously only the neighbour state was checked to decide if an offloaded
entry should be removed. However, there can be situations when the entry
is dead but still marked as valid. This can lead to dead entries not
being removed from fw tables or even incorrect data being added.
Check the entry dead bit before deciding if it should be added to or
removed from fw neighbour tables.
Fixes: 8e6a9046b6 ("nfp: flower vxlan neighbour offload")
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
getnstimeofday64 is deprecated in favor of the ktime_get() family of
functions. The direct replacement would be ktime_get_real_ts64(),
but I'm picking the basic ktime_get() instead:
- using a ktime_t simplifies the code compared to timespec64
- using monotonic time instead of real time avoids issues caused
by a concurrent settimeofday() or during a leap second adjustment.
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Simple overlapping changes in stmmac driver.
Adjust skb_gro_flush_final_remcsum function signature to make GRO list
changes in net-next, as per Stephen Rothwell's example merge
resolution.
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently the NFP fw only supports L3/L4 hashing so rejects the offload of
filters that output to LAG ports implementing other hash algorithms. Team,
however, uses a BPF function for the hash that is not defined. To support
Team offload, accept hashes that are defined as 'unknown' (only Team
defines such hash types). In this case, use the NFP default of L3/L4
hashing for egress port selection.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Extract the tos and the tunnel flags from the tunnel key and offload these
action fields. Only the checksum and tunnel key flags are implemented in
fw so reject offloads of other flags. The tunnel key flag is always
considered set in the fw so enforce that it is set in the rule. Note that
the compulsory setting of the tunnel key flag and optional setting of
checksum is inline with how tc currently generates ipv4 udp tunnel
actions.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously the ttl for ipv4 udp tunnels was set to the namespace default.
Modify this to attempt to extract the ttl from a full route lookup on the
tunnel destination. If this is not possible then resort to the default.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hardware will automatically update csum in headers when a set action has
been performed. This means we could in the driver ignore the explicit
checksum action when performing a set action.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
TC shared blocks allow multiple qdiscs to be grouped together and filters
shared between them. Currently the chains of filters attached to a block
are only flushed when the block is removed. If a qdisc is removed from a
block but the block still exists, flow del messages are not passed to the
callback registered for that qdisc. For the NFP, this presents the
possibility of rules still existing in hw when they should be removed.
Prevent binding to shared blocks until the kernel can send per qdisc del
messages when block unbinds occur.
tcf_block_shared() was not used outside of the core until now, so also
add an empty implementation for builds with CONFIG_NET_CLS=n.
Fixes: 4861738775 ("net: sched: introduce shared filter blocks infrastructure")
Signed-off-by: John Hurley <john.hurley@netronome.com>
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>
Previously it was not possible to distinguish between mpls ether types and
other ether types. This leads to incorrect classification of offloaded
filters that match on mpls ether type. For example the following two
filters overlap:
# tc filter add dev eth0 parent ffff: \
protocol 0x8847 flower \
action mirred egress redirect dev eth1
# tc filter add dev eth0 parent ffff: \
protocol 0x0800 flower \
action mirred egress redirect dev eth2
The driver now correctly includes the mac_mpls layer where HW stores mpls
fields, when it detects an mpls ether type. It also sets the MPLS_Q bit to
indicate that the filter should match mpls packets.
Fixes: bb055c198d ("nfp: add mpls match offloading support")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pass the extact struct from a tc qdisc add to the block bind function and,
in turn, to the setup_tc ndo of binding device via the tc_block_offload
struct. Pass this back to any block callback registrations to allow
netlink logging of fails in the bind process.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently the default case is not handled, which with future command
introductions would introduce a warning. So handle it.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull networking fixes from David Miller:
1) Various netfilter fixlets from Pablo and the netfilter team.
2) Fix regression in IPVS caused by lack of PMTU exceptions on local
routes in ipv6, from Julian Anastasov.
3) Check pskb_trim_rcsum for failure in DSA, from Zhouyang Jia.
4) Don't crash on poll in TLS, from Daniel Borkmann.
5) Revert SO_REUSE{ADDR,PORT} change, it regresses various things
including Avahi mDNS. From Bart Van Assche.
6) Missing of_node_put in qcom/emac driver, from Yue Haibing.
7) We lack checking of the TCP checking in one special case during SYN
receive, from Frank van der Linden.
8) Fix module init error paths of mac80211 hwsim, from Johannes Berg.
9) Handle 802.1ad properly in stmmac driver, from Elad Nachman.
10) Must grab HW caps before doing quirk checks in stmmac driver, from
Jose Abreu.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (81 commits)
net: stmmac: Run HWIF Quirks after getting HW caps
neighbour: skip NTF_EXT_LEARNED entries during forced gc
net: cxgb3: add error handling for sysfs_create_group
tls: fix waitall behavior in tls_sw_recvmsg
tls: fix use-after-free in tls_push_record
l2tp: filter out non-PPP sessions in pppol2tp_tunnel_ioctl()
l2tp: reject creation of non-PPP sessions on L2TPv2 tunnels
mlxsw: spectrum_switchdev: Fix port_vlan refcounting
mlxsw: spectrum_router: Align with new route replace logic
mlxsw: spectrum_router: Allow appending to dev-only routes
ipv6: Only emit append events for appended routes
stmmac: added support for 802.1ad vlan stripping
cfg80211: fix rcu in cfg80211_unregister_wdev
mac80211: Move up init of TXQs
mac80211_hwsim: fix module init error paths
cfg80211: initialize sinfo in cfg80211_get_station
nl80211: fix some kernel doc tag mistakes
hv_netvsc: Fix the variable sizes in ipsecv2 and rsc offload
rds: avoid unenecessary cong_update in loop transport
l2tp: clean up stale tunnel or session in pppol2tp_connect's error path
...
We need to release the refcnt on dst_entry in the route table, otherwise
we will leak the route.
Fixes: 8e6a9046b6 ("nfp: flower vxlan neighbour offload")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Signed-off-by: Louis Peens <louis.peens@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
.ndo_get_phys_port_name was recently extended to support multi-vNIC
FWs. These are firmwares which can have more than one vNIC per PF
without associated port (e.g. Adaptive Buffer Management FW), therefore
we need a way of distinguishing the vNICs. Unfortunately, it's too
late to make flower use the same naming. Flower users may depend on
.ndo_get_phys_port_name returning -EOPNOTSUPP, for example the name
udev gave the PF vNIC was just the bare PCI device-based name before
the change, and will have 'nn0' appended after.
To ensure flower's vNIC doesn't have phys_port_name attribute, add
a flag to vNIC struct and set it in flower code. New projects will
not set the flag adhere to the naming scheme from the start.
Fixes: 51c1df83e3 ("nfp: assign vNIC id as phys_port_name of vNICs which are not ports")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the egress device of an offloaded rule is a LAG port, then encode the
output port to the NFP with a LAG identifier and the offloaded group ID.
A prelag action is also offloaded which must be the first action of the
series (although may appear after other pre-actions - e.g. tunnels). This
causes the FW to check that it has the necessary information to output to
the requested LAG port. If it does not, the packet is sent to the kernel
before any other actions are applied to it.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Adds the control message handler to synchronize offloaded group config
with that of the kernel. Such messages are sent from fw to driver and
feature the following 3 flags:
- Data: an attached cmsg could not be processed - store for retransmission
- Xon: FW can accept new messages - retransmit any stored cmsgs
- Sync: full sync requested so retransmit all kernel LAG group info
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Monitor LAG events via the NETDEV_CHANGEUPPER/NETDEV_CHANGELOWERSTATE
notifiers to maintain a list of offloadable groups. Sync these groups with
HW via a delayed workqueue to prevent excessive re-configuration. When the
workqueue is triggered it may generate multiple control messages for
different groups. These messages are linked via a batch ID and flags to
indicate a new batch and the end of a batch.
Update private data in each repr to track their LAG lower state flags. The
state of a repr is used to determine the active netdevs that can be
offloaded. For example, in active-backup mode, we only offload the netdev
currently active.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a bitmap to each flower repr to track its state if it is enslaved by a
bond. This LAG state may be different to the port state - for example, the
port may be up but LAG state may be down due to the selection in an
active/backup bond.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Check if the fw contains the _abi_flower_balance_sync_enable symbol. If it
does then write a 1 to this indicating that the driver is willing to
receive NIC to kernel LAG related control messages.
If the write is successful, update the list of extra features supported by
the fw and add a stub to accept LAG cmsgs.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Don't store repr pointer to reprs array until the representor is
successfully created. This avoids message about "representor
destruction" even when it was never created. Also it cleans-up the flow.
Also, check return value after port alloc.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The bpf syscall and selftests conflicts were trivial
overlapping changes.
The r8169 change involved moving the added mdelay from 'net' into a
different function.
A TLS close bug fix overlapped with the splitting of the TLS state
into separate TX and RX parts. I just expanded the tests in the bug
fix from "ctx->conf == X" into "ctx->tx_conf == X && ctx->rx_conf
== X".
Signed-off-by: David S. Miller <davem@davemloft.net>
Since commit 29a5dcae27 ("nfp: flower: offload phys port MTU change") we
take encapsulation headroom into account when calculating the max allowed
MTU. This is unnecessary as the max MTU advertised by firmware should have
already accounted for encap headroom.
Subtracting headroom twice brings the max MTU below what's necessary for
some deployments.
Fixes: 29a5dcae27 ("nfp: flower: offload phys port MTU change")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Firmware requires that the ttl value for an encapsulating ipv4 tunnel
header be included as an action field. Prior to the support of Geneve
tunnel encap (when ttl set was removed completely), ttl value was
extracted from the tunnel key. However, tests have shown that this can
still produce a ttl of 0.
Fix the issue by setting the namespace default value for each new tunnel.
Follow up patch for net-next will do a full route lookup.
Fixes: 3ca3059dc3 ("nfp: flower: compile Geneve encap actions")
Fixes: b27d6a95a7 ("nfp: compile flower vxlan tunnel set actions")
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For very very old generation of the management FW Ethernet port
information table may theoretically not be available. This in
turn will cause the nfp_port structures to not be allocated.
Make sure we don't crash the kernel when there is no eth_tbl:
RIP: 0010:nfp_net_pci_probe+0xf2/0xb40 [nfp]
...
Call Trace:
nfp_pci_probe+0x6de/0xab0 [nfp]
local_pci_probe+0x47/0xa0
work_for_cpu_fn+0x1a/0x30
process_one_work+0x1de/0x3e0
Found while working with broken/development version of management FW.
Fixes: a5950182c0 ("nfp: map mac_stats and vf_cfg BARs")
Fixes: 93da7d9660 ("nfp: provide nfp_port to of nfp_net_get_mac_addr()")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If a flower rule has a repr both as ingress and egress port then 2
callbacks may be generated for the same rule request.
Add an indicator to each flow as to whether or not it was added from an
ingress registered cb. If so then ignore add/del/stat requests to it from
an egress cb.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When multiple netdevs are attached to a tc offload block and register for
callbacks, a rule added to the block will be propogated to all netdevs.
Previously these were detected as duplicates (based on cookie) and
rejected. Modify the rule nfp lookup function to optionally include an
ingress netdev and a host context along with the cookie value when
searching for a rule. When a new rule is passed to the driver, the netdev
the rule is to be attached to is considered when searching for dublicates.
When a stats update is received from HW, the host context is used
alongside the cookie to map to the correct host rule.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Introduce a second skb list for handling control messages and limit the
number of allowed messages. Some control messages are considered more
crucial than others, resulting in the need for a second skb list. By
splitting the list into a separate high and low priority list we can
ensure that messages on the high list get added to the head of the list
that gets processed, this however has no functional impact. Previously
there was no limit on the number of messages allowed on the queue, this
could result in the queue growing boundlessly and eventually the host
running out of memory.
Fixes: b985f870a5 ("nfp: process control messages in workqueue in flower app")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously we processed the route ack control messages in the workqueue,
this unnecessarily loads the workqueue. We can deal with these messages
sooner as we know we are going to drop them.
Fixes: 8e6a9046b6 ("nfp: flower vxlan neighbour offload")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Trigger a port mod message to request an MTU change on the NIC when any
physical port representor is assigned a new MTU value. The driver waits
10 msec for an ack that the FW has set the MTU. If no ack is received the
request is rejected and an appropriate warning flagged.
Rather than maintain an MTU queue per repr, one is maintained per app.
Because the MTU ndo is protected by the rtnl lock, there can never be
contention here. Portmod messages from the NIC are also protected by
rtnl so we first check if the portmod is an ack and, if so, handle outside
rtnl and the cmsg work queue.
Acks are detected by the marking of a bit in a portmod response. They are
then verfied by checking the port number and MTU value expected by the
app. If the expected MTU is 0 then no acks are currently expected.
Also, ensure that the packet headroom reserved by the flower firmware is
considered when accepting an MTU change on any repr.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Implement ip fragmentation match offloading for both IPv4 and IPv6. Allows
offloading frag, nofrag, first and nofirstfrag classification.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Refactored shared ip header code for IPv4 and IPv6 in match offload.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
To be able to build separate objects we need to provide
Kbuild with a Makefile in each directory.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Implement tcp flag match offloading. Current tcp flag match support include
FIN, SYN, RST, PSH and URG flags, other flags are unsupported. The PSH and
URG flags are only set in the hardware fast path when used in combination
with the SYN, RST and PSH flags.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
All netdevs which can accept TC offloads must implement
.ndo_set_features(). nfp_reprs currently do not do that, which
means hw-tc-offload can be turned on and off even when offloads
are active.
Whether the offloads are active is really a question to nfp_ports,
so remove the per-app tc_busy callback indirection thing, and
simply count the number of offloaded items in nfp_port structure.
Fixes: 8a2768732a ("nfp: provide infrastructure for offloading flower based TC filters")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Tested-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 84ce5b9877 ("scripts: kernel-doc: improve nested logic to
handle multiple identifiers") improved the handling of nested structure
definitions in scripts/kernel-doc, and changed the expected format of
documentation. This causes new warnings to appear on W=1 builds.
Only comment changes.
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>
Make use of tc_cls_can_offload_and_chain0() to set extack msg in case
ethtool tc offload flag is not set or chain unsupported.
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>
Previously it was possible to interrupt processing stats updates because
they were handled in a work queue. Interrupting the stats updates could
lead to a situation where we backup the control message queue. This patch
moves the stats update processing out of the work queue to be processed as
soon as hardware sends a request.
Reported-by: Louis Peens <louis.peens@netronome.com>
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Most vNIC capabilities are netdev related. It makes no sense
to initialize them and waste FW resources. Some are even
counter-productive, like IRQ moderation, which will slow
down exchange of control messages.
Add to nfp_app a mask of enabled control vNIC capabilities
for apps to use. Make flower and BPF enable all capabilities
for now. No functional changes.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Representors are grouped in sets by type. Currently the whole
sets are under RCU protection, but individual representor pointers
are not. This causes some inconveniences when representors have
to be destroyed, because we have to allocate new sets to remove
any representors. Protect the individual pointers with RCU.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The PORT_REIFY message indicates whether reprs have been created or
when they are about to be destroyed. This is necessary so firmware
can know which state the driver is in, e.g. the firmware will not send
any control messages related to ports when the reprs are destroyed.
This prevents nuisance warning messages printed whenever the firmware
sends updates for non-existent reprs.
Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of starting up reprs assuming that there is link, only respond
to the link state reported by firmware.
Furthermore, ensure link is down after repr netdevs are created.
Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Generate rules for the NFP to encapsulate packets in Geneve tunnels. Move
the vxlan action code to generic udp tunnel actions and use core code for
both vxlan and Geneve.
Only support outputting to well known port 6081. Setting tunnel options
is not supported yet.
Only attempt to offload if the fw supports Geneve.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Compile Geneve match fields for offloading to the NFP. The addition of
Geneve overflows the 8 bit key_layer field, so apply extended metadata to
the match cmsg allowing up to 32 more key_layer fields.
Rather than adding new Geneve blocks, move the vxlan code to generic ipv4
udp tunnel structs and use these for both vxlan and Geneve.
Matches are only supported when specifically mentioning well known port
6081. Geneve tunnel options are not yet included in the match.
Only offload Geneve if the fw supports it - include check for this.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Extract the _abi_flower_extra_features symbol from the fw which gives a 64
bit bitmap of new features (on top of the flower base support) that the fw
can offload. Store this bitmap in the priv data associated with each app.
If the symbol does not exist, set the bitmap to 0.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The tunnel dest IP is required for separate offload to the NFP. It is
already verified that a dest IP must be present and must be an exact
match in the flower rule. Therefore, we can just extract the IP from the
generated offload rule and remove the unused mask variable. The function
is then no longer required to return the IP separately.
Because tun_dst is localised to tunnel matches, move the declaration to
the tunnel if branch.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Delete match field defines that are not supported at this time.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Port matching is selected by default on every rule so remove check for it
and delete 'else' side of the statement. Remove nfp_flower_meta_one as now
it will not feature in the code. Rename nfp_flower_meta_two given that one
has been removed.
'Additional metadata' if statement can never be true so remove it as well.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove the matching of mac/mpls as a default selection. These are not
necessarily set by a TC rule (unlike the port). Previously a mac/mpls
field would exist in every match and be masked out if not used. This patch
has no impact on functionality but removes unnessary memory assignment in
the match cmsg.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
tcfm_dev always points to the correct netdev and we already
hold a refcnt, so no need to use tcfm_ifindex to lookup again.
If we would support moving target netdev across netns, using
pointer would be better than ifindex.
This also fixes dumping obsolete ifindex, now after the
target device is gone we just dump 0 as ifindex.
Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 0115552eac ("nfp: remove false positive offloads
in flower vxlan") missed adding kdoc for a new parameter
of nfp_flower_add_offload().
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>
Pass information to the match offload on whether or not the repr is the
ingress or egress dev. Only accept tunnel matches if repr is the egress
dev.
This means rules such as the following are successfully offloaded:
tc .. add dev vxlan0 .. enc_dst_port 4789 .. action redirect dev nfp_p0
While rules such as the following are rejected:
tc .. add dev nfp_p0 .. enc_dst_port 4789 .. action redirect dev vxlan0
Also reject non tunnel flows that are offloaded to an egress dev.
Non tunnel matches assume that the offload dev is the ingress port and
offload a match accordingly.
Fixes: 611aec101a ("nfp: compile flower vxlan tunnel metadata match fields")
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Register a callback for offloading flows that have a repr as their egress
device. The new egdev_register function is added to net-next for the 4.15
release.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hardware has no notion of new or last mask id, instead it makes use of the
message type (i.e. add flow or del flow) in combination with a single bit
in metadata flags to determine when to add or delete a mask id. Previously
we made use of the new or last flags to indicate that a new mask should be
allocated or deallocated, respectively. This incorrect behaviour is fixed
by making use single bit in metadata flags to indicate mask allocation or
deallocation.
Fixes: 43f84b72c5 ("nfp: add metadata to each flow offload")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Modified netronome nfp flower action to use VLAN helper functions instead
of accessing/referencing TC act_vlan private structures directly.
Reviewed-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Signed-off-by: Manish Kurup <manish.kurup@verizon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The criteria that reprs cannot be replaced with another new set of reprs
has been removed. This check is not needed since the only use case that
could exercise this at the moment, would be to modify the number of
SRIOV VFs without first disabling them. This case is explicitly
disallowed in any case and subsequent patches in this series
need to be able to replace the running set of reprs.
All cases where the return code used to be checked for the
nfp_app_reprs_set function have been removed.
As stated above, it is not possible for the current code to encounter a
case where reprs exist and need to be replaced.
Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Functions called by the netevent notifier must be in atomic context.
Change the mutex to spinlock and ensure mem allocations are done with the
atomic flag.
Also, remove unnecessary locking after notifiers are unregistered.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ensure priv netdev data in flower app is cast to nfp_repr and not nfp_net
as in other apps.
Fixes: 363fc53b8b ("nfp: flower: Convert ndo_setup_tc offloads to block callbacks")
Signed-off-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This restores the original behaviour before the block callbacks were
introduced. Allow the drivers to do binding of block always, no matter
if the NETIF_F_HW_TC feature is on or off. Move the check to the block
callback which is called for rule insertion.
Reported-by: Alexander Duyck <alexander.duyck@gmail.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Several conflicts here.
NFP driver bug fix adding nfp_netdev_is_nfp_repr() check to
nfp_fl_output() needed some adjustments because the code block is in
an else block now.
Parallel additions to net/pkt_cls.h and net/sch_generic.h
A bug fix in __tcp_retransmit_skb() conflicted with some of
the rbtree changes in net-next.
The tc action RCU callback fixes in 'net' had some overlap with some
of the recent tcf_block reworking.
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously we did not ensure that a netdev is a representative netdev
before dereferencing its private data. This can occur when an upper netdev
is created on a representative netdev. This patch corrects this by first
ensuring that the netdev is a representative netdev before using it.
Checking only switchdev_port_same_parent_id is not sufficient to ensure
that we can safely use the netdev. Failing to check that the netdev is also
a representative netdev would result in incorrect dereferencing.
Fixes: 1a1e586f54 ("nfp: add basic action capabilities to flower offloads")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use direct access struct fields rather than PREP_FIELD()
macros to manipulate the jump ID and length, both of which
are exactly 8-bits wide. This simplifies the code somewhat.
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
All drivers are converted to use block callbacks for TC_SETUP_CLS*.
So it is now safe to remove the calls to ndo_setup_tc from cls_*
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Benefit from the newly introduced block callback infrastructure and
convert ndo_setup_tc calls for flower offloads to block callbacks.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously we did not have offloading support for set TCP/UDP actions. This
patch enables TC flower offload of set TCP/UDP sport and dport actions.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously we did not have offloading support for set IPv6 actions. This
patch enables TC flower offload of set IPv6 src and dst address actions.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously we did not have offloading support for set IPv4 actions. This
patch enables TC flower offload of set IPv4 src and dst address actions.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously we did not have offloading support for set ethernet actions.
This patch enables TC flower offload of set ethernet actions.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously matching on IPv6 ttl and tos fields were not offloaded. This
patch enables offloading IPv6 ttl and tos as match fields.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously matching on IPv4 ttl and tos fields were not offloaded. This
patch enables offloading IPv4 ttl and tos as match fields.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously MPLS match offloading was not supported. This patch enables
MPLS match offloading support for label, bos and tc fields.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Periodically receive messages containing the destination IPs of tunnels
that have recently forwarded traffic. Update the neighbour entries 'used'
value for these IPs next hop.
This prevents the neighbour entry from expiring on timeout but rather
signals an ARP to verify the connection. From an NFP perspective, packets
will not fall back mid-flow unless the link is verified to be down.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Receive a request when the NFP does not know the next hop for a packet
that is to be encapsulated in a VXLAN tunnel. Do a route lookup, determine
the next hop entry and update neighbour table on NFP. Monitor the kernel
neighbour table for link changes and update NFP with relevant information.
Overwrite routes with zero values on the NFP when they expire.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Maintain a list of IPv4 addresses used as the tunnel destination IP match
fields in currently active flower rules. Offload the entire list of
NFP_FL_IPV4_ADDRS_MAX (even if some are unused) when new IPs are added or
removed. The NFP should only be aware of tunnel end points that are
currently used by rules on the device
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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>
Compile set tunnel actions for tc flower. Only support VXLAN and ensure a
tunnel destination port of 4789 is used.
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>
Compile ovs-tc flower vxlan metadata match fields for offloading. Only
support offload of tunnel data when the VXLAN port specifically matches
well known port 4789.
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>
Add a helper function that returns the length of the cmsg data when given
the cmsg skb
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>
Previously we did not check the flow dissector against a list of allowed
and supported flow key dissectors. This patch introduces such a list and
correctly rejects unsupported flow keys.
Fixes: 43f84b72c5 ("nfp: add metadata to each flow offload")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When we moved to updating representors from a workqueue grabbing
the RTNL somehow got lost in the process. Restore it, and make
sure RCU lock is not held while we are grabbing the RTNL. RCU
protects the representor table, so since we will be under RTNL
we can drop RCU lock as soon as we find the netdev pointer.
RTNL is needed for the dev_set_mtu() call.
Fixes: 2dff196224 ("nfp: process MTU updates from firmware flower app")
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>
Use dev_consume_skb_any() in place of dev_kfree_skb_any()
when control frame has been successfully processed in flower
and on the driver's main TX completion path.
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>
Create representors after lower vNIC is registered and destroy
them before it is destroyed. Move the code out of start/stop
callbacks directly into vnic_init/clean callbacks. Make sure
SR-IOV callbacks don't try to create representors when lower
device does not exist.
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>
We currently only have one app callback for vNIC creation
and destruction. This is insufficient, because some actions
have to be taken before netdev is registered, after it's
registered and after it's unregistered. Old callbacks
were really corresponding to alloc/free actions. Rename
them and add proper init/clean. Apps using representors
will be able to use new callbacks to manage lifetime of
upper devices.
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>
Previously the vlan tci field was incorrectly exact matched. This patch
fixes this by using the flow dissector to populate the vlan tci field.
Fixes: 5571e8c9f2 ("nfp: extend flower matching capabilities")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously when calculating the supported key layers MPLS, IPv4/6
TTL and TOS were not considered. This patch checks that the TTL and
TOS fields are masked out before offloading. Additionally this patch
checks that MPLS packets are correctly handled, by not offloading them.
Fixes: af9d842c13 ("nfp: extend flower add flow offload")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously flow dissectors were referenced without first checking that
they are in use and correctly populated by TC. This patch fixes this by
checking each flow dissector key before referencing them.
Fixes: 5571e8c9f2 ("nfp: extend flower matching capabilities")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Simplify the statistics handling code by keeping pointer to vNIC's
config memory in nfp_port. Note that this is referring to the
representor side of vNICs, vNIC side has the pointer in nfp_net.
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>
The offending commit used a newly added helper function.
But the logic is wrong. Without this fix, the affected NICs
can't do HW offload. Error -EOPNOTSUPP will be returned directly.
Fixes: a2e8da9378 ("net/sched: use newly added classid identity helpers")
Signed-off-by: Chris Mi <chrism@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Now that control message processing occurs in a workqueue rather than a BH
handler MTU updates received from the firmware may be safely processed.
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>
Processing of control messages is not time-critical and future processing
of some messages will require taking the RTNL which is not possible
in a BH handler. It seems simplest to move all control message processing
to a workqueue.
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>
The firmware expects a MAC_REPR control message when a MAC representor
is created. The driver should expect a PORTMOD message to follow which
will provide the link states of the physical port associated with the MAC
representor.
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>
The Flower app may receive a request to update the MTU of a representor
netdev upon receipt of a control message from the firmware. This requires
the RTNL lock which needs to be taken outside of the packet processing
path.
As a handling of this correctly seems a little to invasive for a fix simply
skip setting the MTU for now.
Relevant backtrace:
[ 1496.288489] BUG: scheduling while atomic: kworker/0:3/373/0x00000100
[ 1496.294911] dca syscopyarea sysfillrect sysimgblt fb_sys_fops ptp drm mxm_wmi ahci pps_core libahci i2c_algo_bit wmi [last unloaded: nfp]
[ 1496.294918] CPU: 0 PID: 373 Comm: kworker/0:3 Tainted: G OE 4.13.0-rc3+ #3
[ 1496.294919] Hardware name: Supermicro X10DRi/X10DRi, BIOS 2.0 12/28/2015
[ 1496.294923] Workqueue: events work_for_cpu_fn
[ 1496.294924] Call Trace:
[ 1496.294927] <IRQ>
[ 1496.294931] dump_stack+0x63/0x82
[ 1496.294935] __schedule_bug+0x54/0x70
[ 1496.294937] __schedule+0x62f/0x890
[ 1496.294941] ? intel_unmap_sg+0x90/0x90
[ 1496.294942] schedule+0x36/0x80
[ 1496.294943] schedule_preempt_disabled+0xe/0x10
[ 1496.294945] __mutex_lock.isra.2+0x445/0x4a0
[ 1496.294947] ? device_is_rmrr_locked+0x12/0x50
[ 1496.294950] ? kfree+0x162/0x170
[ 1496.294952] ? device_is_rmrr_locked+0x12/0x50
[ 1496.294953] ? iommu_should_identity_map+0x50/0xe0
[ 1496.294954] __mutex_lock_slowpath+0x13/0x20
[ 1496.294955] ? iommu_no_mapping+0x48/0xd0
[ 1496.294956] ? __mutex_lock_slowpath+0x13/0x20
[ 1496.294957] mutex_lock+0x2f/0x40
[ 1496.294960] rtnl_lock+0x15/0x20
[ 1496.294979] nfp_flower_cmsg_rx+0xc8/0x150 [nfp]
[ 1496.294986] nfp_ctrl_poll+0x286/0x350 [nfp]
[ 1496.294989] tasklet_action+0xf6/0x110
[ 1496.294992] __do_softirq+0xed/0x278
[ 1496.294993] irq_exit+0xb6/0xc0
[ 1496.294994] do_IRQ+0x4f/0xd0
[ 1496.294996] common_interrupt+0x89/0x89
Fixes: 948faa46c0 ("nfp: add support for control messages for flower app")
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>
Instead of checking handle, which does not have the inner class
information and drivers wrongly assume clsact->egress as ingress, use
the newly introduced classid identification helpers.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Get rid of struct tc_to_netdev which is now just unnecessary container
and rather pass per-type structures down to drivers directly.
Along with that, consolidate the naming of per-type structure variables
in cls_*.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As ndo_setup_tc is generic offload op for whole tc subsystem, does not
really make sense to have cls-specific args. So move them under
cls_common structurure which is embedded in all cls structs.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change the flows a bit in preparation of follow-up changes in
ndo_setup_tc args. Also, change the error code to align with the rest of
the drivers.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since the type is always present, push it to be a separate argument to
ndo_setup_tc. On the way, name the type enum and use it for arg type.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We accidentally free a NULL pointer and leak the pointer we want to
free. Also you can tell from the label name what was intended. :)
Fixes: abfcdc1de9 ("nfp: add a stats handler for flower offloads")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
nfp_flower_metadata_cleanup() is defined but never invoked,
not calling it will cause us to leak mask and statistics
queue memory on the host.
Fixes: 43f84b72c5 ("nfp: add metadata to each flow offload")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The legacy MAC address lookup doesn't work well with breakout
cables. We are probably better off picking random addresses
than the wrong ones in the theoretical scenario where management
FW didn't tell us what the port config is.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously the flower offloads never sends messages to the hardware,
and never registers a handler for receiving messages from hardware.
This patch enables the flower offloads to send control messages to
hardware when adding and removing flow rules. Additionally it
registers a control message rx handler for receiving stats updates
from hardware for each offloaded flow.
Additionally this patch adds 4 control message types; Add, modify and
delete flow, as well as flow stats. It also allows
nfp_flower_cmsg_get_data() to be used outside of cmsg.c.
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>
Previously there was no way of updating flow rule stats after they
have been offloaded to hardware. This is solved by keeping track of
stats received from hardware and providing this to the TC handler
on request.
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>
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>
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>
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>
Extends the flower flow add function by calculating which match
fields are present in the flower offload structure and allocating
the appropriate space to describe these.
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>
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>
Apps shouldn't declare their own struct net_device_ops for
representors, this makes sharing code harder. Add necessary
nfp_app callbacks and move the definition of representors'
struct net_device_ops to common 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>
Thanks to the fact that all representors will now have an nfp_port,
we can depend on information there to provide a app-independent
.ndo_get_stats64().
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>
nfp_port is an abstraction which is supposed to allow us sharing
code between different netdev types (vNIC vs repr). Spawn ports
for PFs and VFs to enable this sharing.
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>
Add a cleanup callback for undoing what app init callback did.
Make flower allocate its private structure on init and free
it from the new callback.
While at it remember to set the app pointer to NULL on the
error path to avoid any races while probe path unwinds.
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>
Initialise VF and PF representors in flower app.
Based in part on work by Benjamin LaHaise, Bert van Leeuwen 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>
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>
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>
