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A virtual device can be created adding the following option on the eal field within
the eal options section:
--vdev=net_ring0
This will cause a new (virtual) dpdk port to be created.
Such a device can then be used in a primary process as other DPDK devices i.e.
a [port x] section must be defined in the configuration file
For a secondary process, there is no need to add --vdev, but, of course
--proc-type=secondary (or --proc-type=auto) must be set within the eal field.
There are two ways to use such a virtual device in a secondary process
1) Using the DPDK port number. Note however that the DPDK port number of virtual devices
in the secondary process might not start from 0 and might hence have to be guessed
e.g. if using 2 virtual devices in primary process (--vdev=net_ring0 --vdev=net_ring1)
the port_id will be 0 and 1 in primary process and 2 & 3 in secondary process.
2) Using the port name, as defined in --vdev in the primary process. In this way,
no [port] section must be defined, and the virtual port names are directly used within
the "rx port" and "tx port" configuration e.g.:
rx port=net_ring0
tx port=net_ring1
Limitations
===========
There seems to be a PROX leak causing DPDK port id to increase when restarting the
secondary process (causing the secondary process configuration through port id more difficult).
As the primary process configures the port (including the number of rx and tx queues)
based on its config file, the secondary process can't setup its own queues.
Simple configurations (such as using gen or lat in primary, and swap in secondary) work as PROX
allocates a RX queue even in gen mode and a TX queue even in lat mode. Better configuration/support
for secondary process should be designed.
The use of dpdk port names is only supported by PROX within "rx port" and "tx port". It is not
supported by other configuration fields such as "tx ports from routing table".
The use of dpdk port names in "rx port" and "tx port" is limited to only 1 port.
Change-Id: Iaa606625da471403713a21df79d3ded4bb91b91e
Signed-off-by: Xavier Simonart <xavier.simonart@intel.com>
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For kernel supported devices, add for vlan tag support
This can be configured through port parameter:
vlan tag=<vlan tag>
If this parameter is set, a vlan tagged interface is created
on top of the tap device
This is only supported for vdev tap devices
When sending (untagged) packet to the tap device (through socket)
the tap should react in sending tagged packet
Note that receiving in L3 mode (w/o tap support) a tagged packet
is not yet supported.
Change-Id: I363fa2f8d2341ac41ef23620222ece1d944bf336
Signed-off-by: Xavier Simonart <xavier.simonart@intel.com>
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This commit adds support for the creation of tap devices.
To create a tap device, and associate it with a DPDK port,
add within the port section:
vdev=<tap_name>
local ipv4=<ip_assigned_to_port>
<tap_name> will appear as a kernel network device, with an IP <ip_assigned_to_port>
ARP packets received from the network on the DPDK interface will be forwarded to the kernel.
1st packet which needs to be generated to a new IP will cause an IP packet
to be sent to the kernel (using socket sendto) forcing the kernel to send an ARP_REQUEST.
In this commit, there is no notification from the kernel about ARP table changes.
This is subject to further commits.
Two config files, gen_tap.cfg and swap_tap.cfg have been created. They work one against each other.
*** Note however that they do not work if running within the same host
(with the port being connected back to back) ***
This is due to the fact that the kernel would bypass the ports and use local interface...
Change-Id: Iadeec0d99e3c693472ea44bdb9163a3bf97df2fa
Signed-off-by: Xavier Simonart <xavier.simonart@intel.com>
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This commit prepares PROX for supporting changes from DPDK 19.08
Mainly, the "sed" listed below were run.
In addition,
- some forward definition have been removed,
- prox_compat.h has been updated
- prox_compat.h has been included where necessary.
Hence such a commit is rather easy to review and to reapply
on other branches if necessary.
sed -i 's/struct ether_hdr/prox_rte_ether_hdr/g' *.h
sed -i 's/struct ether_hdr/prox_rte_ether_hdr/g' *.c
sed -i 's/struct ether_addr/prox_rte_ether_addr/g' *.c
sed -i 's/struct ether_addr/prox_rte_ether_addr/g' *.h
sed -i 's/prox_rte_ether_addr_port/struct ether_addr_port/g' *.c
sed -i 's/prox_rte_ether_addr_port/struct ether_addr_port/g' *.h
sed -i 's/struct vlan_hdr/prox_rte_vlan_hdr/g' *.c
sed -i 's/struct vlan_hdr/prox_rte_vlan_hdr/g' *.h
sed -i 's/struct ipv4_hdr/prox_rte_ipv4_hdr/g' *.h
sed -i 's/struct ipv4_hdr/prox_rte_ipv4_hdr/g' *.c
sed -i 's/struct ipv6_hdr/prox_rte_ipv6_hdr/g' *.c
sed -i 's/struct ipv6_hdr/prox_rte_ipv6_hdr/g' *.h
sed -i 's/struct udp_hdr/prox_rte_udp_hdr/g' *.c
sed -i 's/struct udp_hdr/prox_rte_udp_hdr/g' *.h
sed -i 's/struct tcp_hdr/prox_rte_tcp_hdr/g' *.c
sed -i 's/struct tcp_hdr/prox_rte_tcp_hdr/g' *.h
sed -i 's/struct prox_rte_ether_addr_copy/ether_addr_copy/g' *.c
sed -i 's/struct prox_rte_ether_addr_copy/ether_addr_copy/g' *.h
sed -i 's/struct prox_rte_ether_addr_copy/prox_rte_ether_addr_copy/g' *.c
sed -i 's/struct prox_rte_ether_addr_copy/ether_addr_copy/g' *.h
sed -i 's/prox_rte_ether_addr_copy/ether_addr_copy/g' *.h
sed -i 's/prox_rte_ether_addr_copy/ether_addr_copy/g' *.c
sed -i 's/ether_addr_copy/prox_rte_ether_addr_copy/g' *.c
sed -i 's/ether_addr_copy/prox_rte_ether_addr_copy/g' *.h
sed -i 's/prox_rte_ether_hdr_arp/struct ether_hdr_arp/g' *.h
sed -i 's/prox_rte_ether_hdr_arp/struct ether_hdr_arp/g' *.c
sed -i 's/struct vxlan_gpe_hdr/prox_rte_vxlan_gpe_hdr/g' *.h
sed -i 's/struct vxlan_gpe_hdr/prox_rte_vxlan_gpe_hdr/g' *.c
sed -i 's/eth_random_addr/prox_rte_eth_random_addr/g' *.c
sed -i 's/eth_random_addr/prox_rte_eth_random_addr/g' *.h
sed -i 's/ETHER_CRC_LEN/PROX_RTE_ETHER_CRC_LEN/g' *.c
sed -i 's/ETHER_CRC_LEN/PROX_RTE_ETHER_CRC_LEN/g' *.h
sed -i 's/ETHER_HDR_LEN/PROX_RTE_ETHER_HDR_LEN/g' *.c
sed -i 's/ETHER_HDR_LEN/PROX_RTE_ETHER_HDR_LEN/g' *.h
sed -i 's/ETHER_MAX_LEN/PROX_RTE_ETHER_MAX_LEN/g' *.c
sed -i 's/ETHER_MAX_LEN/PROX_RTE_ETHER_MAX_LEN/g' *.h
sed -i 's/ETHER_MIN_LEN/PROX_RTE_ETHER_MIN_LEN/g' *.c
sed -i 's/ETHER_MIN_LEN/PROX_RTE_ETHER_MIN_LEN/g' *.h
sed -i 's/TCP_SYN_FLAG/PROX_RTE_TCP_SYN_FLAG/g' *.c
sed -i 's/TCP_RST_FLAG/PROX_RTE_TCP_RST_FLAG/g' *.c
sed -i 's/TCP_FIN_FLAG/PROX_RTE_TCP_FIN_FLAG/g' *.c
sed -i 's/TCP_ACK_FLAG/PROX_RTE_TCP_ACK_FLAG/g' *.c
Change-Id: I4dfe8be68e618c94dcaae28754579fbeb571bb00
Signed-off-by: Xavier Simonart <xavier.simonart@intel.com>
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A high number of RX descriptor can be helpful in avoiding
packet loss due to the core being interrupted.
This commit increases the default number of descriptors from 256 to 2K.
Those values are checked versus the minimum and maximum supported by the pmd.
Number of mbufs (mempool size) have been updated n config files to support this
default number of dsescriptors.
The number of descriptors can still be overwritten by the config file. However
those values must always remain within the limits reported by the pmd.
Change-Id: I5f7999eca886dad68f3c0733da0d796bf4c06a56
Signed-off-by: Xavier Simonart <xavier.simonart@intel.com>
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Multicast can be enabled through configuration or through command line
- Through configuration
Add multicast=mcast_address (e.g. multicast=01:00:5e:01:02:03) in the port
section
- Through command line
run enable multicast port_id mcast_address (e.g. enable multicast 1 01:00:5e:01:02:03)
IGMP join message is sent unsollicited through command line:
join igmp core_id task_id ip (e.g. join igmp 1 0 224.1.1.3)
To enable swap answering IGMP Query (w/ IGMP Join)
- Through configuration
Add igmp ipv4=ip_address within the core/task section
- Through command line
join igmp core_id task_id ip (e.g. join igmp 1 0 224.1.1.3)
(this will 1st initiate an unsollicated join, then answer any subsequent query)
UDP/TCP packets received on a multicast address (224.0.0.0 => 239.255.255.255) are discarded
To stop sending responses to IGMP query:
leave igmp core_id task_id
Change-Id: I3808ccabf3b38b5a1e10e1b044db63aa05bcd7b5
Signed-off-by: Xavier Simonart <xavier.simonart@intel.com>
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Improve PROX generator performance by pre-calculating bytes_to_tsc.
This improvement is only implemented for non-pcap
generator, where only few different packet sizes are usually generated.
This change might have a negative performance impact in some cases, if
many different packet sizes are generated, resulting in higher memory usage.
This is the case for instance if random is applied to packet size.
In addition, simplified the rx path, receiving now only MAX_PKT_BURST packets
per handle loop.
Before we were trying to empty the NIC looping on RX packets, ending up
with many rx packets per handle loop. This was used to determine an lower bound
for the time the packet was received.
We now set the lower bound when less than MAX_PKT_BURST has been received.
Change-Id: I1ce813d7e4ac1577ea412c590add5d6f94b36ec7
Signed-off-by: Xavier Simonart <xavier.simonart@intel.com>
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Improve DPDK 18.05 support introduced by 3e532aca.
Support for DPDK 18.08.
Change-Id: Ide712ee94254b506a0ad88c95a7e01b789f99d48
Signed-off-by: Xavier Simonart <xavier.simonart@intel.com>
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mbuf size was setup to achieve the best performance i.e.
using the smallest mbuf and not segmenting packets.
However this resulted in complex code, much dependent of the way
the pmd are working e.g. a change(fix) in recent dpdk i40e
implementation caused a 1782 (=1518+8+256) bytes mbuf to be too
small to hold a 1518 bytes packets.
Hence this change simplifies the mbuf size selection at the price
of a potential decreases in performance - as more memory is now used.
Except if jumbo frames are used, the mbuf size will now be the same
for all modes. The packets will not be segmented except if jumbo
frames are enabled.
If jumbo frames are enabled, packets are by default segmented, except
if the mbuf size is configured big enough in the config file.
Change-Id: I222fcac7a65c0d221d5d422f419deb9c0f864172
Signed-off-by: Xavier Simonart <xavier.simonart@intel.com>
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
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Change-Id: I5611ead4b61b23d6c1c983852e8c75619e08ecf9
Signed-off-by: Xavier Simonart <xavier.simonart@intel.com>
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Change-Id: Ie6d4e7ce22c27967117a446626f5923643397812
Signed-off-by: Patrice Buriez <patrice.buriez@intel.com>
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JIRA: SAMPLEVNF-55
PROX is a DPDK-based application implementing Telco use-cases such as
a simplified BRAS/BNG, light-weight AFTR... It also allows configuring
finer grained network functions like QoS, Routing, load-balancing...
(We are moving PROX version v039 to sampleVNF
https://01.org/intel-data-plane-performance-demonstrators/prox-overview)
Change-Id: Ia3cb02cf0e49ac5596e922c197ff7e010293d033
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
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Xavier Simonart
Patrice Buriez
Deepak S