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Previous use of strndup() required user to remember to call free().
Now return a vector pointing directly to the API message string.
Of course user must remember to copy the string out if lifetime
is longer than API message lifetime.
Change-Id: Ib5e2b3d52d258e1a42ea9ea9a9e04abbe360e2bf
Type: fix
Signed-off-by: Ole Troan <ot@cisco.com>
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This change is made fix a crash, because is_feature flag semantics turn
out to be different from "custom app code" semantics. Introduce a flag
which custom plugins/apps can use to instead of tying that code to
is_feature flag.
Change-Id: Ief5898711e68529f9306cfac54c4dc9b3650f9e3
Ticket: N/A
Type: fix
Fixes: 21aa8f1022590b8b5caf819b4bbd485de0f1dfe5
Signed-off-by: Klement Sekera <ksekera@cisco.com>
Signed-off-by: Ole Troan <ot@cisco.com>
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Two codes diverged in the packet processor
And sorry I could not use them both
Long I stood being but one developer
And studied one as far as I could
To where the code said bitwise OR
Then took the other, as just could see,
And having perhaps the better bit,
Because it followed the RFC
And used the cryptic XOR in C,
Had run them both a fair bit.
And both equally ran that morning
With packets dropped and flowing.
Oh, I flagged the first for dropping!
Yet knowing bug leads to debuging
I hoped I'd never be returning.
I shall be commiting this with a sigh
Somewhere ages and ages hence:
Two codes diverged by a bit, and I,
I made the packets flow on by,
And that has made all the difference.
Type: fix
Change-Id: If2698726d5501fde76211994f8efc37119345352
Signed-off-by: Jon Loeliger <jdl@netgate.com>
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Type: fix
Change-Id: Ia73cbe2fba0a364d966daed0b5d5d2ac7499f86d
Signed-off-by: Neale Ranns <nranns@cisco.com>
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2.77e1 v. 2.81e1
Type: performance
Change-Id: I896ec77818603f17aaa622073dafc626570326f1
Signed-off-by: Neale Ranns <nranns@cisco.com>
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redirect
Change-Id: I2a3ba2a3d73ea8511e3a511855b041432328f0a8
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: Ib9f98fba5a724480ca95f11a762002c53e08df70
Signed-off-by: Klement Sekera <ksekera@cisco.com>
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add a UT for the API
Change-Id: I93fb6ec2c5f74b991bf7f229250a30c0395b8e24
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I0c2d6fccd95146e52bb88ca4a6e84554d5d6b2ed
Signed-off-by: Neale Ranns <nranns@cisco.com>
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- arp-input, registered with the ethernet protocol dispatcher, performs
basic checks and starts the arc
- arp-reply; first feature on the arc replies to requests and learns
from responses (no functional change)
- arp-proxy; checks against the proxy DB
arp-reply and arp-proxy are enabled when the interface is appropriately
configured.
Change-Id: I7d1bbabdb8c8b8187cac75e663daa4a5a7ce382a
Signed-off-by: Neale Ranns <nranns@cisco.com>
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TBH, this looks like merge damage or some such. Perfectly fine NULL pointer
check, about three lines after it was needed.
Change-Id: I52831062e30533a59fb76b644ee5ae389676d2ae
Signed-off-by: Dave Barach <dave@barachs.net>
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before and after:
ip4-load-balance 1.54e1
ip4-load-balance 1.36e1
p.s. Quad loops were not beneficial
Change-Id: I7bc01fc26288f0490af74db2b1b7993526c3d982
Signed-off-by: Neale Ranns <nranns@cisco.com>
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- add to the Punt API to allow different descriptions of the desired packets: UDP or exceptions
- move the punt nodes into punt_node.c
- improve tests (test that the correct packets are punted to the registered socket)
Change-Id: I1a133dec88106874993cba1f5a439cd26b2fef72
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Add a minimal ip6 hbh header processing test.
ioam plugin: use ip6_local_hop_by_hop_register_protocol() in
udp_ping_init().
Please test the ioam plugin udp_ping path AYEC, so I can
publish the patch.
Change-Id: I74e35276d6c38c31022026cfd238fad5e4a54485
Signed-off-by: Dave Barach <dave@barachs.net>
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When multichained fragments comes into reassembly, followed by buffer Linearization or dropping the buffer for other reasons inbetween disturbs the multichained mbuf linking.
When packet is transmitted, followed by freeing of the buffers, woudl result in double free and packet corruptions
Change-Id: Ib5711d54e61fdd6a67deb30dad0b2a14afb9c2da
Signed-off-by: Vijayabhaskar Katamreddy <vkatamre@cisco.com>
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Add a registration overwritten warning to ip4_icmp_register_type(...)
Change-Id: I6c2aabdb979b54ec49e827225acc74559ac4caab
Signed-off-by: Dave Barach <dave@barachs.net>
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Replace enqueue code with marcro vlib_validate_buffer_enqueue_x1
Change-Id: I4b454b1d73fa5adbaf5f40cf45dc8975878ac93b
Signed-off-by: jackiechen1985 <xiaobo.chen@tieto.com>
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The current code only allowed access to the main thread error counters.
That is not so useful for a multi worker instance.
No return a vector indexed by thread of counter_t values.
Type: fix
Change-Id: Ie322c8889c0c8175e1116e71de04a2cf453b9ed7
Signed-off-by: Ole Troan <ot@cisco.com>
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limit max # of fragments to 3 per packet by default
add API option to configure the limit at runtime
Change-Id: Ie4b9507bf5c6095b9a5925972b37fe0032f4f9e8
Signed-off-by: Klement Sekera <ksekera@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: I5c414a158a8a6b243128127c608ab0fbb5a9405b
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
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vlib_get_buffers can save 1.2 clocks/pkt from 16.1 to 14.9 clocks/pkt
on Skylake.
Change-Id: I79d8b58b192280af5e5a5f73562b6301e1821cec
Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com>
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Change-Id: Ibf5c283217a985e43a562f1969573eeb26ee6017
Signed-off-by: Klement Sekera <ksekera@cisco.com>
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vlib_get_buffers can save at least 1.2 clocks/pkt for ip4_lookup_inline
on Haswell.
Change-Id: I730fc346cec4d2eb5ca364308e45268bda4d5f89
Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com>
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Parsing ipv4 upper layer is not meaningful
if it's a fragment packet except the first.
Change-Id: I442fb7ec01244fde8c4f7656a8ba633d0aa0f97e
Signed-off-by: Faicker Mo <faicker.mo@ucloud.cn>
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Some API action handlers called vl_msg_ai_send_shmem()
directly. That breaks Unix domain socket API transport.
A couple (bond / vhost) also tried to send a sw_interface_event
directly, but did not send the message to all that had
registred interest. That scheme never worked correctly.
Refactored and improved the interface event code.
Change-Id: Idb90edfd8703c6ae593b36b4eeb4d3ed7da5c808
Signed-off-by: Ole Troan <ot@cisco.com>
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Change-Id: I046e481a67fbeffdaa8504c8d77d232b986a61ee
Signed-off-by: John Lo <loj@cisco.com>
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Change-Id: I215e1e0208a073db80ec6f87695d734cf40fabe3
Signed-off-by: Jim Thompson <jim@netgate.com>
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A punt/exception path that provides:
1) clients that use the infra
2) clients can create punt reasons
3) clients can register to recieve packets that are punted
for a given reason to be sent to the desired node.
4) nodes which punt packets fill in the {reason,protocol} of the
buffere (in the meta-data) and send to the new node "punt-dispatch"
5) punt-dispatch sends packets to the registered nodes or drops
Change-Id: Ia4f144337f1387cbe585b4f375d0842aefffcde5
Signed-off-by: Neale Ranns <nranns@cisco.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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error should be recorded in buffer so that
process-error-punt can handle them correctly
Per Damjan's comments, move counter to under
else clause of last error0==NONE check. Both
v4 and v6 are changed.
Change-Id: I707c7877ccb12589337155173fc4a5200b42ee93
Signed-off-by: Kingwel Xie <kingwel.xie@ericsson.com>
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Change-Id: I454bb01153d1d0536c4a6fe36103e7721aad8cd1
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Recent changes in icmp4/6 choose to free the original
buffer, and make a copy for sending icmp reply back.
However, buffer->error will be ignored when the buffer
is freed unconditionally.
A quick fix can be moving the counter increment code to icmp,
but I prefert to enqueue all buffers to 'error-drop' so that
they can be handled in a batch
rebase, using vlib_buffer_enqueue_to_single_next
Change-Id: I9f3028b55f1d5f634763e2410cd91e17f368195e
Signed-off-by: Kingwel Xie <kingwel.xie@ericsson.com>
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This reverts commit e63325e3ca03c847963863446345e6c80a2c0cfd.
Allow time for CSIT to accommodate.
Change-Id: I59435e4ab5e05e36a2796c3bf44889b5d4823cc2
Signed-off-by: ot@cisco.com
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Use of consistent API types for interface.api
Change-Id: Ieb54cebb4ac96b432a3f0b41596718aa2f34885b
Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
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Change-Id: I1c870f90a8e0d14b972593e72242b430c13d3bf2
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: Id55ec87724e421d5b722314f9302c6ade7545306
Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
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Previous code was walked buffer chain, effectively trying to "truncate" the chain, reset the
length of first buffer and reused that as the ICMP error message. That could have issues in cases
there were other users of the buffer chain. Update to clone the first buffer in chain, and
use that for the ICMP error message instead.
Change-Id: Ibc1a0bf2d854dae41874808c8297028ed93dd69d
Signed-off-by: Ole Troan <ot@cisco.com>
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Change-Id: I77a43bfb37d827727c331cd65eee77536cc15953
Signed-off-by: Ole Troan <ot@cisco.com>
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coverity complains about logically dead code for the statement if (error) because
error was assigned to 0 prior to the check. I believe error was meant to get the
return status of the call vnet_punt_socket_add.
Change-Id: I794167493f63cb898d3618c2c28817823f46b765
Signed-off-by: Steven Luong <sluong@cisco.com>
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Coverity complains about identical code is executed for if and else branch.
Clean them up by removing the useless code.
Change-Id: Ie53f1dff055440ab2c3c3d2ea91edb1e50204b38
Signed-off-by: Steven Luong <sluong@cisco.com>
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in the following two scenarios
1. When fragments arrive in multiple interfaces and endup in different threads
2. When fragments arrive in same interafce but in different queues due to interface RSS doesnt have the ability to place fragments in the right queues
Change-Id: I9f9a8a4085692055ef6823d634c8e19ff3daea05
Signed-off-by: Vijayabhaskar Katamreddy <vkatamre@cisco.com>
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Grab the thread barrier across a set of RPCs, to greatly increase
efficiency. Avoids running afoul of the barrier sync holddown
timer.
Change-Id: I782dfdb1bed398b290169c83266681c9edd57a3f
Signed-off-by: Dave Barach <dave@barachs.net>
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Rewrite vlib_buffer_chain_linearize function so that it works as intended.
Linearize buffer chains coming out of reassembly to work around some
dpdk-tx issues. Note that this is not a complete workaround
as a sufficiently large packet will still cause the resulting chain to
be too long.
Drop features from reassembly code which relies on knowing which and how
many buffers were freed during linearization, buffer counts and tracing
capabilities for these cases.
Change-Id: Ic65de53ecb5c78cd96b178033f6a576ab4060ed1
Signed-off-by: Klement Sekera <ksekera@cisco.com>
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Change-Id: Ide3425f144fb17201dcde7ba89f39e460048100d
Signed-off-by: Klement Sekera <ksekera@cisco.com>
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Change-Id: I713904f8eb2f724cb08dba494c160c14cc8b24a1
Signed-off-by: Klement Sekera <ksekera@cisco.com>
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This commit adds a "gso" parameter to existing "create tap..." CLI,
and a "no-gso" parameter for the compatibility with the future,
when/if defaults change.
It makes use of the lowest bit of the "tap_flags" field in the API call
in order to allow creation of GSO interfaces via API as well.
It does the necessary syscalls to enable the GSO
and checksum offload support on the kernel side and sets two flags
on the interface: virtio-specific virtio_if_t.gso_enabled,
and vnet_hw_interface_t.flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO.
The first one, if enabled, triggers the marking of the GSO-encapsulated
packets on ingress with VNET_BUFFER_F_GSO flag, and
setting vnet_buffer2(b)->gso_size to the desired L4 payload size.
VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO determines the egress packet
processing in interface-output for such packets:
When the flag is set, they are sent out almost as usual (just taking
care to set the vnet header for virtio).
When the flag is not enabled (the case for most interfaces),
the egress path performs the re-segmentation such that
the L4 payload of the transmitted packets equals gso_size.
The operations in the datapath are enabled only when there is at least
one GSO-compatible interface in the system - this is done by tracking
the count in interface_main.gso_interface_count. This way the impact
of conditional checks for the setups that do not use GSO is minimized.
"show tap" CLI shows the state of the GSO flag on the interface, and
the total count of GSO-enabled interfaces (which is used to enable
the GSO-related processing in the packet path).
This commit lacks IPv6 extension header traversal support of any kind -
the L4 payload is assumed to follow the IPv6 header. Also it performs
the offloads only for TCP (TSO - TCP segmentation offload).
The UDP fragmentation offload (UFO) is not part of it.
For debug purposes it also adds the debug CLI:
"set tap gso {<interface> | sw_if_index <sw_idx>} <enable|disable>"
Change-Id: Ifd562db89adcc2208094b3d1032cee8c307aaef9
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
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Change-Id: I3a3076c7d87446b5ec2a02e70d3b6d05f1875875
Signed-off-by: Klement Sekera <ksekera@cisco.com>
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Change-Id: I245a8cc8f237242efadcf10d47b76222a6497e89
Signed-off-by: Damjan Marion <damarion@cisco.com>
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