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In some cases, we can refer to no-longer adjacencies (eg. in traces). Do
not dump them in this case as they are probably incorrect (memory can be
reused).
Type: fix
Change-Id: Ib653ba066bb6595ec6ec37d313a3124bce0eeed3
Signed-off-by: Benoît Ganne <bganne@cisco.com>
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Type: feature
Change-Id: I1632ff23b1bf6d91aa3406c95ebd6ef0aa595f35
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Type: style
Change-Id: I2a21076fffaeb5726be80356aaffc9fea3d95850
Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com>
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Multiple API message handlers call vnet_get_sup_hw_interface(...)
without checking the inbound sw_if_index. This can cause a
pool_elt_at_index ASSERT in a debug image, and major disorder in a
production image.
Given that a number of places are coded as follows, add an
"api_visible_or_null" variant of vnet_get_sup_hw_interface, which
returns NULL given an invalid sw_if_index, or a hidden sw interface:
- hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
+ hw = vnet_get_sup_hw_interface_api_visible_or_null (vnm, sw_if_index);
if (hw == NULL || memif_device_class.index != hw->dev_class_index)
return clib_error_return (0, "not a memif interface");
Rename two existing xxx_safe functions -> xxx_or_null to make it
obvious what they return.
Type: fix
Change-Id: I29996e8d0768fd9e0c5495bd91ff8bedcf2c5697
Signed-off-by: Dave Barach <dave@barachs.net>
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Instead of all clients directly RR sourcing the entry they are tracking,
use a deidcated 'tracker' object. This tracker object is a entry
delegate and a child of the entry. The clients are then children of the
tracker.
The benefit of this aproach is that each time a new client tracks the
entry it doesn't RR source it. When an entry is sourced all its children
are updated. Thus, new clients tracking an entry is O(n^2). With the
tracker as indirection, the entry is sourced only once.
Type: feature
Change-Id: I5b80bdda6c02057152e5f721e580e786cd840a3b
Signed-off-by: Neale Ranns <nranns@cisco.com>
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The vlib init function subsystem now supports a mix of procedural and
formally-specified ordering constraints. We should eliminate procedural
knowledge wherever possible.
The following schemes are *roughly* equivalent:
static clib_error_t *init_runs_first (vlib_main_t *vm)
{
clib_error_t *error;
... do some stuff...
if ((error = vlib_call_init_function (init_runs_next)))
return error;
...
}
VLIB_INIT_FUNCTION (init_runs_first);
and
static clib_error_t *init_runs_first (vlib_main_t *vm)
{
... do some stuff...
}
VLIB_INIT_FUNCTION (init_runs_first) =
{
.runs_before = VLIB_INITS("init_runs_next"),
};
The first form will [most likely] call "init_runs_next" on the
spot. The second form means that "init_runs_first" runs before
"init_runs_next," possibly much earlier in the sequence.
Please DO NOT construct sets of init functions where A before B
actually means A *right before* B. It's not necessary - simply combine
A and B - and it leads to hugely annoying debugging exercises when
trying to switch from ad-hoc procedural ordering constraints to formal
ordering constraints.
Change-Id: I5e4353503bf43b4acb11a45fb33c79a5ade8426c
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: Ib34ca76fcc5e85cb3cc646ffc7be208b8e757cba
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I26279c19b879e59c68fda31426fe42dae62a858d
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I215e1e0208a073db80ec6f87695d734cf40fabe3
Signed-off-by: Jim Thompson <jim@netgate.com>
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Change-Id: I6527e3fd8bbbca2d5f728621fc66b3856b39d505
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I53ab8d17914e6563110354e4052109ac02bf8f3b
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
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this can be used by e.g. tunnels so it doesn't need to be
implemented for each tunnel type.
Change-Id: I0790f89aa49f83421612b35108cce67693285999
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Using memcpy instead of complex specific copy logic. This simplify
the implementation and also improve perf slightly.
Also move adjacency data from tail to head of buffer, which improves
cache locality (header and data share the same cacheline)
Finally, fix VxLAN which used to workaround vnet_rewrite logic.
Change-Id: I770ddad9846f7ee505aa99ad417e6a61d5cbbefa
Signed-off-by: Benoît Ganne <bganne@cisco.com>
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Avoid the cache miss consequences of spraying [functionally harmless]
junk into un-prefetched rewrite space. As things stand, several tunnel
encap rewrites set rewrite data_bytes = 0, and take a performance hit
due to unwanted speculative copying.
Should be performance-neutral in speed-path cases, which won't execute
the added check.
Change-Id: Id83c0325e58c0f31631b4bae5a06457dfc7ed567
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: Iac92a6d15e1feef4d97b8db09fc60901dc9f7880
Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
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Change-Id: I642823bdc3c7006a0b719ec1e3a9cd75b2b37253
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I7a48890c075826fbd8c75436dfdc5ffff230a693
Signed-off-by: Neale Ranns <nranns@cisco.com>
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if a tunnel's destination address is reachable through the tunnel
(see example config belwo) then search for and detect a recursion
loop and don't stack the adjacency. Otherwise this results in a
nasty surprise.
DBGvpp# loop cre
DBGvpp# set int state loop0 up
DBGvpp# set int ip addr loop0 10.0.0.1/24
DBGvpp# create gre tunnel src 10.0.0.1 dst 1.1.1.1
DBGvpp# set int state gre0 up
DBGvpp# set int unnum gre0 use loop0
DBGvpp# ip route 1.1.1.1/32 via gre0
DBGvpp# sh ip fib 1.1.1.1
ipv4-VRF:0, fib_index:0, flow hash:[src dst sport dport proto ] locks:[src:plugin-hi:2, src:default-route:1, ]
1.1.1.1/32 fib:0 index:11 locks:4 <<< this is entry #11
src:CLI refs:1 entry-flags:attached, src-flags:added,contributing,active,
path-list:[14] locks:2 flags:shared,looped, uPRF-list:12 len:1 itfs:[2, ]
path:[14] pl-index:14 ip4 weight=1 pref=0 attached-nexthop: oper-flags:recursive-loop,resolved, cfg-flags:attached,
1.1.1.1 gre0 (p2p)
[@0]: ipv4 via 0.0.0.0 gre0: mtu:9000 4500000000000000fe2fb0cc0a0000010101010100000800
stacked-on entry:11: <<<< and the midchain forwards via entry #11
[@2]: dpo-drop ip4
src:recursive-resolution refs:1 src-flags:added, cover:-1
forwarding: unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:13 buckets:1 uRPF:12 to:[0:0]]
[0] [@6]: ipv4 via 0.0.0.0 gre0: mtu:9000 4500000000000000fe2fb0cc0a0000010101010100000800
stacked-on entry:11:
[@2]: dpo-drop ip4
DBGvpp# sh adj 1
[@1] ipv4 via 0.0.0.0 gre0: mtu:9000 4500000000000000fe2fb0cc0a0000010101010100000800
stacked-on entry:11:
[@2]: dpo-drop ip4
flags:midchain-ip-stack midchain-looped <<<<< this is a loop
counts:[0:0]
locks:4
delegates:
children:
{path:14}
Change-Id: I39b82bd1ea439be4611c88b130d40289fa0c1b59
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I463b153de93cfec29a9c15e8e84e41f6003d4c5f
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: Id4f37f5d4a03160572954a416efa1ef9b3d79ad1
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: Iaecf8c060e1337d8c362ad9a9be2bb9701664397
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: I6b59df939c9daf40e261d73d19f500bd90abe6ff
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
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Change-Id: I085615fde1f966490f30ed5d32017b8b088cfd59
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
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Change-Id: I3281f65f7dec792d56de48afb39efcc2fed8578b
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I9ce801e9b257eaa6be0cbe2ad3bfe630717f8c67
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
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with ip direct broadcast enable a packet to the interface's
subnet broadcast address with be sent L2 broadcast on the
interface. dissabled, it will be dropped. it is disabled by
default, which preserves current behaviour
Change-Id: If154cb92e64834e97a541b32624354348a0eafb3
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I13279a1a96df457209fb25748a643c01b18ff4e0
Signed-off-by: Neale Ranns <nranns@cisco.com>
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This patch separates setting of hardware interfaec and software
interface MTU. Software MTU is L2 payload MTU (i.e. not including L2
header). Per-protocol MTU for IPv4, IPv6 and MPLS can also be set.
Currently only IP4, IP6 are enabled in adjacency / rewrite code.
Documentation in src/vnet/MTU.md
Change-Id: Iee2fd6f0bbc8210748dd8e073ab9fab87d323690
Signed-off-by: Ole Troan <ot@cisco.com>
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Change-Id: I8335ebf266becf2f42bb3f28a17dfed8d9b08f97
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I9ede6bc861350c7d9e78fa4d96cd584c2816d06f
Signed-off-by: Florin Coras <fcoras@cisco.com>
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When walking all adjacencies for a given {next-hop,interface} instead of
walking all the adjacencies on that interface and matching the next-hop
(which is O(n) in the number of adjacencies on that link, find all instances
of an adjacency with any link-type and wtih that {next-hop,interfacE} pair:
this is O(1).
Change-Id: Ic80399fc9e93c8df111379c039e592d8cafbab18
Signed-off-by: Neale Ranns <nranns@cisco.com>
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hard code the address mask offsets. This are protocol specific and only used on ethernet when used at all.
Change-Id: Ib1f6f33682f53254ffbb5a241a1583e65420e0c7
Signed-off-by: Neale Ranns <nranns@cisco.com>
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interface)"
This reverts commit 70083ee74c3141bbefb185525315f1b34497dcaa.
Reverting as this patch is causing following crash:
0: /home/damarion/cisco/vpp3/build-data/../src/vnet/devices/devices.h:131 (vnet_get_device_input_thread_index) assertion `queue_id < vec_len (hw->input_node_thread_index_by_queue)' fails
Aborted
Change-Id: Ie2a365032110b1f67be7a9d832885b9899813d39
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Change-Id: I98bd454a761a1032738a21edeb0fe847e801f901
Signed-off-by: Ole Troan <ot@cisco.com>
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For the debug image, if the interface is removed and the trace was
collected prior to the interface delete, show trace may cause a crash.
This is because vnet_get_sw_interface_name and vnet_get_sup_hw_interface
are not safe if the interface is deleted.
The fix is to use format_vnet_sw_if_index_name if all we need is to
get the interface name in the trace to display. It would show "DELETED"
which is better than a crash.
Change-Id: I912402d3e71592ece9f49d36c8a6b7af97f3b69e
Signed-off-by: Steven <sluong@cisco.com>
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The interpose source allows the source/provider to insert/interpose
a DPO in the forwarding chain of the FIB entry ahead of the forwarding
provided by the next best source. For example if the API source (i.e
the 'control plane') has provided an adjacency for forwarding, then
an interpose source (e.g. a monitoring service) couold interpose a
replicatte DPO to copy the traffic to another location AND forward
using the API's adjacency.
To use the interose feature an existing source (i.e FIB_SOURCE_PLUGIN_HI)
cn specifiy as a flag FIB_ENTRY_FLAG_INTERPOSE and provide a DPO to
interpose. One might also consider using interpose in conjunction with
FIB_ENTRY_FLAG_COVER_INHERIT to ensure the interpose object affects
all prefixes in the sub-tree.
Change-Id: I8b2737b985f8f7c08123406d0491881def347b52
Signed-off-by: Neale Ranns <nranns@cisco.com>
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- support both pipe and uniform modes for all MPLS LSP
- all API programming for output-labels requires that the mode (and associated data) is specificed
- API changes in MPLS, BIER and IP are involved
- new DPO [sub] types for MPLS labels to handle the two modes.
Change-Id: I87b76401e996f10dfbdbe4552ff6b19af958783c
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: Ic30fbcb2630f39e45345d7215babf5d7ed4b33a0
Signed-off-by: Ole Troan <ot@cisco.com>
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... you'd think I'd have leanred by now...
Change-Id: I65c54feb2ec016baa07ed96c81ab8f60277c3418
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
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- Register new type (for use from puglins)
- Memory for delegate is provided by delegate provider
Change-Id: I5ece86b1fe84e3028a5c853871476c4ba015b2eb
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
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Change-Id: I85602b0178315023bb512babdd5b7dd4263a322d
Signed-off-by: Ole Troan <ot@cisco.com>
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and update glean address on local interface MAC change
Change-Id: I530826d60c7e9db2b0fa2d45754139d82c5ea807
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
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This reverts commit 8b30e471df4d42214619e1d6c50cc8298426b45f.
Change-Id: I99edb236eb0a7f8ba3fba333c3481a710ebcb59c
Signed-off-by: Ole Troan <ot@cisco.com>
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This reverts commit a44b015aa012d3b07ed873925d47c6d5955b7dd2.
Change-Id: I2d76bc0844f58e5ddf3f3a4326b86076f46e3751
Signed-off-by: Ole Troan <ot@cisco.com>
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Change-Id: I19390f87343bacea84b49fc5d08af38875fdafdd
Signed-off-by: Ole Troan <ot@cisco.com>
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update the glean adj on a local interface MAC change
Change-Id: Ia5c5cde424ed0fea3431532cc5abf22b364bbab5
Signed-off-by: Neale Ranns <nranns@cisco.com>
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- setting MTU on an interface updates the L3 max bytes too
- value cached in the adjacency is also updated
- MTU exceeded generates ICMP to sender
Change-Id: I343ec71d8e903b529594c4bd0543f04bc7f370b3
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
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returned in the fixup function
Change-Id: I458e6e03b03e27775df33a2fd302743126d6ac44
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I4164c4c19c8dbfd73e6ddf94a12056325cc093b9
Signed-off-by: Neale Ranns <nranns@cisco.com>
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
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