Age | Commit message (Collapse) | Author | Files | Lines |
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Type:refactor
Change-Id: I37dbc8b55827d66c2578d6ab8b86ed7e18198aa6
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type:feature
Change-Id: If02884d0f1f26bfe31ec609ea9611cb27b699868
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type:fix
Change-Id: I2f4224a53360f533c086ebde6a3056e60431da87
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type:feature
Change-Id: Ie1ab4b24af9c654d5e0ed94b7fa96ca195b01c56
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type: feature
Control ack generation and retransmissions with session layer scheduler.
Change-Id: Iacdf9f84ab81f44851980aa45a83e75f29be2b7b
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type: feature
Change-Id: Icb3c574100cde95ab5be4923c8739889cf7e48c6
Signed-off-by: Vladimir Kropylev <vladimir.kropylev@enea.com>
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Type: feature
Notify cc algos that new data is sent on a connection that was
apparently idle.
Change-Id: I892e5e9bb5b88d791265ffbbefce6f9694d01970
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type:feature
Change-Id: Ibe1a4c555b55fb929d55b02599aaf099ed522cdf
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type: feature
Provide interface for sending Window Update ACK,
ensuring it will be sent only once, if RWND became non-zero,
after zero RWND has been advertised before.
Change-Id: I7f0d8af76d7763208625df68ab4ac3727fdaf449
Signed-off-by: Vladimir Kropylev <vladimir.kropylev@enea.com>
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Type: feature
First cut implementation with limited testing. The feature is not
enabled by default and the expectation is that cc algorithms will enable
it on demand.
Change-Id: I92b70cb4dabcff0e9ccd1d725952c4880af394da
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type:feature
Change-Id: I0b72954a6ae6a05abe0761cb4f227072863f127b
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type: feature
Change-Id: If9804d3685d2a52efa06e412ae1ebb39c6a44b8b
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type: refactor
Use tcp_available_cc_snd_space instead of sack scoreboard
last_delivered_bytes to estimate available space when retransmitting
with no sack support
Change-Id: I938c637279eaf8c5634c4e97f0633fa2d0054fac
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Type: feature
Change-Id: Ia8af6a62a2be2265bc42955d90e8c2222bdb8f50
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- Avoid doing cc in closing states.
- Rest connections closed with unread data
Change-Id: I97d46b0459f03ea5439eeb0f233b6c17d3e06dfd
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: If6c672d1caa8884eb5d819311606a79a3de81200
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I0b8a311979d3ccd15f3854e7ac44ca9951dc6ce4
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I86e71f32dee3cc48f680e6432a96caef0a7f66a1
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I56d8d8d67d5590e24c1ddb54b0c63a2cb03798e1
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- avoid changing snd_nxt when doing fast retransmits
- use snd_una_max only to keep track of the max seq number sent
- simplify future ack testing
Change-Id: I3580ad3aefe30128486c3375d0ac3f3f62c04c5e
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I579eef6d70b94b20e22b7b116ac63b2d7af49b22
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I3cecffae2e30233d4725bd3eaf5ff4a8ff194fae
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: Idc7dfe743399dd8dee0f6b3ec83f194f3fca580b
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: Idf060f385f4d9b2f42fdab6a1d372727beb8b19e
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: Ifd9fa30eed343e2c5d40582b3e3aa589b070637d
Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
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- remove unused functions
- rename old "stream" functions
Change-Id: Icbb03daa9f9f1c58b5be5c38aa8a9cbcf9159b47
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Make sure we send enough dupacks to cover all the holes created in the
last frame received. Also make sure we send all the blocks, not just the
first.
Change-Id: I9597a34ac14473d1cc3ad07d65bc37043e3d0582
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- Better handle buffer starvation scenarios
- Handle case when both peers enter recovery due to packet loss.
- Fix passive open establish cleanup
Change-Id: I2f28baa2ff0383bb8f5f6d2452b49aa38ce69bce
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I468b1015bca5f95b162fb49e904aa4e4d38db75e
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- move transport specific types to transport_types
- add transport wrapper functions for interaction with transport
protocol vfts
Change-Id: I93f70d884585fc2f41c4a605e310c80e8a8972f2
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I3051d49aa9b9c38dcd8069ea1748f74ab20ac0f6
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I6048c6a51efa826ac333f7d15919cb87dd766d74
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Change-Id: Ia2241e963cf45765d8d17c65eea781edbf74d4f9
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I90056176194cb2a144d49a3cb283653d8d30f051
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: Ia8b2a077ba4897ddd15cf33221b191cd7a3f1d33
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I7219a8d315b312812acafd9d2709fba8b4a2a679
Signed-off-by: Florin Coras <fcoras@cisco.com>
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For tcp this means that the last enqueued data goes out with a psh bit
set.
Change-Id: I29d357ecae6f02e748b59a7b799150ec73d14ba2
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I20820145377060e12aeeb23b433206c79fd88332
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: Ia9048bb4e074f7ebc36eb77e542a916924103332
Signed-off-by: Florin Coras <fcoras@cisco.com>
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VPP graph dispatch trace record description:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Major Version | Minor Version | NStrings | ProtoHint |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Buffer index (big endian) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ VPP graph node name ... ... | NULL octet |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Buffer Metadata ... ... | NULL octet |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Buffer Opaque ... ... | NULL octet |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Buffer Opaque 2 ... ... | NULL octet |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| VPP ASCII packet trace (if NStrings > 4) | NULL octet |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Packet data (up to 16K) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Graph dispatch records comprise a version stamp, an indication of how
many NULL-terminated strings will follow the record header, and a
protocol hint.
The buffer index allows downstream consumers of these data to easily
filter/track single packets as they traverse the forwarding
graph. FWIW, the 32-bit buffer index is stored in big endian format.
As of this writing, major version = 1, minor version = 0. Nstrings
will be either 4 or 5.
Here is the current set of protocol hints:
typedef enum
{
VLIB_NODE_PROTO_HINT_NONE = 0,
VLIB_NODE_PROTO_HINT_ETHERNET,
VLIB_NODE_PROTO_HINT_IP4,
VLIB_NODE_PROTO_HINT_IP6,
VLIB_NODE_PROTO_HINT_TCP,
VLIB_NODE_PROTO_HINT_UDP,
VLIB_NODE_N_PROTO_HINTS,
} vlib_node_proto_hint_t;
Example: VLIB_NODE_PROTO_HINT_IP6 means that the first octet of packet
data SHOULD be 0x60, and should begin an ipv6 packet header.
Change-Id: Idf310bad80cc0e4207394c80f18db5f77c378741
Signed-off-by: Dave Barach <dave@barachs.net>
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Significant refit coming soon.
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: If7d196e84354c5088706e2ac81e2add42597a550
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Change-Id: Id4f37f5d4a03160572954a416efa1ef9b3d79ad1
Signed-off-by: Dave Barach <dave@barachs.net>
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Make sure that we notify the app of the data enqueued in the burst
before notifying of disconnect.
Change-Id: I7747a5cbb4c6bc9132007f849c24ce04b7841273
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Because the code is not optimized, newreno is still the default
congestion control algorithm.
Change-Id: I7061cc80c5a75fa8e8265901fae4ea2888e35173
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- update pacer once per burst
- better estimate initial rtt
- compute smoothed average for higher precision rtt estimate
Change-Id: I06d41a98784cdf861bedfbee2e7d0afc0d0154ef
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Instead of reusing buffers for acking, consume all buffers and program
output for (dup)ack generation. This implicitly fixes the drop counters
that were artificially inflated by both data and feedback traffic.
Moreover, the patch also significantly reduces the ack traffic as we now
only generate an ack per frame, unless duplicate acks need to be sent.
Because of the reduced feedback traffic, a sender's rx path and a
receiver's tx path are now significantly less loaded. In particular, a
sender can overwhelm a 40Gbps NIC and generate tx drop bursts for low
rtts. Consequently, tx pacing is now enforced by default.
Change-Id: I619c29a8945bf26c093f8f9e197e3c6d5d43868e
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Avoid dequeuing acked bytes more than once per burst for a connection.
Although the fifos do not use locks, size decrements are atomic, so they
rely on locked instructions.
Change-Id: Id65f4ea40b2c10057461402dfd0393034e6472d5
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Allows sending of unsent data in fast recovery and consolidates logic in
tcp, instead of splitting it between tcp fast retransmit and tcp output
path called by the session layer.
Change-Id: I9b12cdf2aa2ac50b9f25e46856fed037163501fe
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: Ib15d629c5fde7849bfa3307f42659e920eb0f463
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Also reset pacer on tcp retransmit timeout
Change-Id: I5a9edee4c00d1d169248d79587a9b10437c2bd87
Signed-off-by: Florin Coras <fcoras@cisco.com>
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