The change can save 1.1 clocks per packet on Intel Atom C3858 platform,
It downgraded from 2.05e1 to 1.94e1 clocks per packet.
The change can save 0.3 clocks per packet on Intel Xeon CPU E5-2699 v4 @ 2.20GHz,
It downgraded from 1.26e1 to 1.23e1 clocks per packet.
Change-Id: I1ede77fb592a797d86940a8abad9ca291a89f1c7
Signed-off-by: Yulong Pei <yulong.pei@intel.com>
When netvsc or failsafe DPDK device is used, the DPDK port id does not
match the VPP device instance id. The code that formats the device
name was incorrectly calling DPDK device info using the VPP device
instance id. This causes the VPP interface to be named
"FortyGigabit0/2/0" based on mistakenly finding the PCI device
information of the hidden DPDK port id for the VF device.
Change-Id: I9366232f4b2087076bdcc1a58bf228007c24c084
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
The pmd device type show with 'show hardware' is wrong if using failsafe
(or netvsc pmd) because the pmd device type should be based of the VPP device
instance, not the DPDK port id.
Fixes: a059a000f81a ("dpdk: Decoupling the meaning of xd->device_index in dpdk_plugin")
Change-Id: I3880fe674731880c5706a21d8ef3ccf8d569d46d
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
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>
Using bitfield struct for 5tuple proved to be fragile from
the performance standpoint - the zeroizing of the entire
structure and then setting the separate pieces of it
triggers increased memory latency. So, move to using
flags byte.
Also, use the direct object copies rather than memcpy.
Change-Id: Iad8faf9de050ff1256e40c950dee212cbd3e5267
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
For vxlan_encap, code will touch memory area before the field "data"
in struct vlib_buffer_t, however so far it is not prefetched in cache
yet for this graph node.
After applying the patch, 2~3 cycles per pkt for vxlan4_encap can be
saved on Haswell. It will bring a lot of benefits on DVN platform too.
Change-Id: I26d8c57fb3d2415726be5367117d73eb715e35ad
Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com>
Setting DPDK_PMD_TAP=y when building will enable the tap PMD
in the build configuration that is generated for DPDK. Enabling
this currently results in a failure during compilation because
rte_gso.h is not found. RTE_LIBRTE_GSO needs to be set to y for
this to work.
Use the setting for the tap PMD to determine the value for
RTE_LIBRTE_GSO.
Change-Id: Ie395417b1c62369a95320856081ad52c674ce9f2
Signed-off-by: Matthew Smith <mgsmith@netgate.com>
Add atomic swap and store macro with acquire and release ordering
respectively. Variable in question is interupt_pending variable which
is used as guard variable by input nodes to process the device queue.
Atomic Swap is used with Acquire ordering as writes or reads following
this in program order should not be reordered before the swap.
Atomic Store is used with Release ordering, as post store the node is
added to pending list.
Change-Id: I1be49e91a15c58d0bf21ff5ba1bd37d5d7d12f7a
Original-patch-by: Damjan Marion <damarion@cisco.com>
Signed-off-by: Sirshak Das <sirshak.das@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Reviewed-by: Ola Liljedahl <ola.liljedahl@arm.com>
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>
Restore parts of commit d0e812f wiped out by a7564e80
The full description of the change is in d0e812f
Change-Id: I632476cb10678a725396462f90f9b0bea9e572fa
Signed-off-by: Igor Mikhailov (imichail) <imichail@cisco.com>
Refactor most of the ping code to be address-family agnostic,
and add support for chained buffers (thus, sending
the payloads bigger than 2K).
Change-Id: I749c302ca2f3390e0d1f84046fc72da5cf13e3ef
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
The failsafe driver is unique because it shares device with underlying
pci device. This confuses name generation. Without this fix, the name
is wrong and multiple devices get created with same name.
Fixes: 3901a038edf4 ("dpdk: only look at PCI information on PCI devices")
Change-Id: I13796d03baf6c76dafe3667c83bea4a1ae30c48f
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Force pacing for fast retransmit to avoid bursts of retransmitted
packets.
Change-Id: I2ff42c328899b36322c4de557b1f7d853dba8fe2
Signed-off-by: Florin Coras <fcoras@cisco.com>
This patch enables the use of this function for enqueuing frames to the next graph node.
Change-Id: I4003110db59870f7106e0d13942d6ff7bc54b46d
Signed-off-by: Lijian Zhang <Lijian.Zhang@arm.com>
Reviewed-by: Sirshak Das <Sirshak.Das@arm.com>
Reviewed-by: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>
Reviewed-by: Steve Capper <Steve.Capper@arm.com>
If sessions cannot be handled during the current dispatch loop
iteration, ensure that they are first to be handled in the next.
Change-Id: Ifc6215900f8cfd530d4886b58641189f0ccf9bb7
Signed-off-by: Florin Coras <fcoras@cisco.com>
Minor clean-up in the home gateway use-case documentation
Change-Id: I7d3aaea8cec62248daf7814b21a8acb574ac12a1
Signed-off-by: Dave Barach <dave@barachs.net>
