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Route map optimizations
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zebra: move from NDA_NOTIFY to NDA_FDB_EXT_ATTRS
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Calling fpm_nl_enqueue we should expect a it fit or not
return value on the outgoing stream. This is not necessary
to check here because the while loop where we are checking this
already has ensured that the data being written will fit.
CID -> 1499854
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Setting `zebra route-map delay-timer 0` completely turns of any
route-map processing in zebra. Which is completely wrong. A timer
of 0 means `do it now`.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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If we are running with a delayed timer to handle route-map changes
in zebra, if another route-map change is made to the cli, push
out the timer instead of not modifying the timer. This will
allow a large set of route-maps to be possibly be read in by
the system and we don't have a state where new route-map
changes are being read in and having the timer pop in
the middle of it.
Additionally convert to use THREAD_OFF, preventing a possible
use after free as well as aligning the thread api usage
with what we consider correct.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Current code when a route map changes schedules a rerun of all routes in the
particular table. So if you modify the `ip protocol XX route-map FOO`
route-map `FOO` all routes will be rechecked. This is extremely expensive.
Modify zebra to only update the routes associated with the route-map. So
if we have 800k bgp routes and 50 ospf routes and we are route-map'ing
the ospf routes we'll only look at 50 routes.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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When we need to cause a reprocessing of data the code currently
marks all routes as needing to be looked at. Modify the
rib_update_table code to allow us to specify a specific route
type we only want to reprocess. At this point none
of the code is behaving differently this is just setup
for a future code change.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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The function rib_update_vrf is never used. Remove it.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Use nl_pid from the netlink socket used for programming the kernel
(netlink_dplane) in netlink route messages sent by the 'fpm' module.
This makes 'fpm' consistent with 'dplane_fpm_nl' which already
behaves this way, and allows FPM server implementations to determine
route origin via nlmsg_pid.
Signed-off-by: Duncan Eastoe <duncan.eastoe@att.com>
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zebra: don't set connection-up event pointer directly
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zebra: Scale setup RMAC is send multiple time to fpm
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Use thread_cancel to reset the connection-up processing timer.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
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Thread zfpm_conn_up_thread_cb can Yield and send RMAC multiple
times to FPM.
Signed-off-by: Kishore Kunal <kishorekunal01@broadcom.com>
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Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Create a function that can dump the mac->flags in human readable
output and convert all debugs to use it.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Create a function to dump MACIP flags and to use it.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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zebra: Add ability to display human readable format re->flags and status
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zebra: notify installing protocol when nexthops cannot be resolved
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The re->flags and re->status in debugs were being dumped as hex values.
I can never quickly decode this. Here is an idea. Let's let FRR do
it for me.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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zebra: reduce impact of route-update overload
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zebra: build the sample dataplane plugin
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Build the sample dataplane plugin with debug/dev builds.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
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Remove an unused local in the sample dataplane plugin.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
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In the case where a routes nexthops cannot be resolved as part
of route processing, immmediately notify the upper level protocol
that their routes failed to install if they are interested in
being informed about this issue.
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Zebra delay timer
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zebra: L3VNI to L2VNI conversion is not handled
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Bgplu fixes
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dplane_fpm_nl: routes stuck with 'q' flag (revisited)
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The zebra route-map delay timer value is a global value
not a per vrf change. As such we should only print it
out one time.
We are seeing this:
zebra route-map delay-timer 33
exit-vrf
zebra route-map delay-timer 33
When we have 2 vrf's configured.
Fix the code to only write it out for the default vrf
Ticket: CM-32888
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Remove the dead function zebra_route_map_write_delay_timer
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
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Revert labelmanager statics
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pbrd: pbr ipv4/ipv6 match fixes
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Revert "zebra: unexpose label-manager util-funcs as static"
This reverts commit d3d9639d9a2251aa519b5399706ce816982001a1.
Signed-off-by: Pat Ruddy <pat@voltanet.io>
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bgpd, zebra: evpn mh fixes
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when checking if there is a "hole" behind the current reservation
marker the calculation of whether the hole is big enough to satisfy
the requested chunk is out by 1. This could result in returning a label
which has already been allocated.
Signed-off-by: Pat Ruddy <pat@voltanet.io>
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if the requested chunk size was less than 16 then a chunk
within the reserved block would be returned. Make sure that
we never return labels that are below MPLS_LABEL_UNRESERVED_MIN
Signed-off-by: Pat Ruddy <pat@voltanet.io>
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zebra: avoid c++ reserved keyword
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zebra: zebra2proto() handle kernel/connect type
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Pbr zebra was wrong
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When dplane_fpm_nl is used the "Please add this protocol(n) to proper
rt_netlink.c handling" debug message is emitted for any route of type
kernel or connected.
This severely reduces performance of dplane_fpm_nl when large numbers
of these routes are present in the RIB.
The messages are not observed when using the original fpm module since
this uses a custom function, netlink_proto_from_route_type().
zebra2proto() now returns RTPROT_KERNEL for ZEBRA_ROUTE_CONNECT and
ZEBRA_ROUTE_KERNEL. This should only impact dplane_fpm_nl's use of
the common netlink routines since these routes generally ignored via
checking of RSYSTEM_ROUTE().
Signed-off-by: Duncan Eastoe <duncan.eastoe@att.com>
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fpm_nl_process() now ensures that the dataplane thread is rescheduled
if it hits the work limit while processing its incoming work queue.
This would probably already occur due to some other event, such as
fpm_process_queue() enqueuing completed work to the output queue,
however it does no harm to add this explicit reschedule.
Signed-off-by: Duncan Eastoe <duncan.eastoe@att.com>
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If the dataplane thread hits the work limit while processing the
output queue for any given provider, we now explicitly reschedule
the thread.
Otherwise, if the number of items in the output queue is greater than
the work limit, draining of that output queue is dependent on new
dataplane work.
Routes which are not drained from the output queue are stuck with
the 'q' flag, so this is a similar issue to that observed in
164d8e86081fdf33992b6c45af446bac6103e20c.
Signed-off-by: Duncan Eastoe <duncan.eastoe@att.com>
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zebra: fix loop logic in dplane for extra intf info
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fpm: frr-reload, IPv6 and an improvement
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zebra maintains pseudo interface for hanging off user config after
the interface is deleted in the kernel. If an user tried to config
an ES against such an interface zebra would crash with the following
call stack -
at zebra/zebra_evpn_mh.c:2095
sysmac=sysmac@entry=0x55cfbadd3160) at zebra/zebra_evpn_mh.c:2258
at zebra/zebra_evpn_mh.c:3222
argv=<optimized out>, es_lid_str=<optimized out>, es_lid=1, no=0x0, vty=0x55cfbaf4c7b0)
at zebra/zebra_evpn_mh.c:3222
argv=<optimized out>) at ./zebra/zebra_evpn_mh_clippy.c:202
vty=vty@entry=0x55cfbaf4c7b0, cmd=cmd@entry=0x0, filter=FILTER_RELAXED)
at lib/command.c:1073
Ticket: CM-31702
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
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bgp-ready
If a local-MAC or local-neigh is not active locally it is not sent to BGP.
At this point if BGP rxes a remote route it accepts it and installs in
zebra. Zebra was rejecting BGP's update if it had a higher seq local (inactive)
entry. This would result in bgp and zebra falling out of sync.
In some cases zebra would delete the local-inactive entries in sometime (as
a part of the dplane/kernel garbage collection). This would leave zebra
with missing remote entries (which were still present in bgpd).
This change allows lower-seq BGP updates to overwrite zebra's local entry if
that entry happens to be local-inactive.
Note: This logic was already in use for sync-mac-ip updates. Extended the
same logic to remote-mac-ip updates.
Ticket: CM-31626
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
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When an VNI was deleted as a part of FRR/zebra shutdown the zevpn entry
was being freed without removing its reference in the access vlan
entry (i.e. without clearing the VLAN->VNI mapping) used by MH.
Ticket: CM-31197
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
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If a netlink/dp notification is rxed for a neigh without the peer-sync
flag FRR re-installs the entry with the right flags. This change is
needed to handle cases where the dataplane and FRR may fall out of
sync because of neigh learning on the network ports (i.e. via
the VxLAN).
Ticket: CM-30693
The problem was found during VM mobility "torture" tests where 100s
of extended VM moves were done.
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
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Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
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