diff options
author | 2016-07-18 15:30:06 -0300 | |
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committer | 2016-07-19 08:26:18 +0200 | |
commit | 8be94df6e9f5f70516cb86d82dd04fefaa0fe8b3 (patch) | |
tree | b055d508e145ddc35943c4a083aa846855c92732 /doc/guides | |
parent | ddb3f4884bd4cdb8659fb8326c27986a5c832ade (diff) |
Imported Upstream version 16.07-rc2
Change-Id: Ie9e8ec528a2a0dace085c5e44aa7fa3b489d4ba0
Signed-off-by: Ricardo Salveti <ricardo.salveti@linaro.org>
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Diffstat (limited to 'doc/guides')
-rw-r--r-- | doc/guides/cryptodevs/kasumi.rst | 3 | ||||
-rw-r--r-- | doc/guides/freebsd_gsg/build_dpdk.rst | 2 | ||||
-rw-r--r-- | doc/guides/linux_gsg/build_dpdk.rst | 2 | ||||
-rw-r--r-- | doc/guides/linux_gsg/enable_func.rst | 4 | ||||
-rw-r--r-- | doc/guides/nics/overview.rst | 2 | ||||
-rw-r--r-- | doc/guides/nics/virtio.rst | 75 | ||||
-rw-r--r-- | doc/guides/prog_guide/dev_kit_build_system.rst | 42 | ||||
-rw-r--r-- | doc/guides/rel_notes/release_16_07.rst | 15 | ||||
-rw-r--r-- | doc/guides/sample_app_ug/l3_forward.rst | 42 |
9 files changed, 160 insertions, 27 deletions
diff --git a/doc/guides/cryptodevs/kasumi.rst b/doc/guides/cryptodevs/kasumi.rst index d6b3a975..7346b217 100644 --- a/doc/guides/cryptodevs/kasumi.rst +++ b/doc/guides/cryptodevs/kasumi.rst @@ -52,6 +52,9 @@ Limitations * Chained mbufs are not supported. * KASUMI(F9) supported only if hash offset field is byte-aligned. +* In-place bit-level operations for KASUMI(F8) are not supported + (if length and/or offset of data to be ciphered is not byte-aligned). + Installation ------------ diff --git a/doc/guides/freebsd_gsg/build_dpdk.rst b/doc/guides/freebsd_gsg/build_dpdk.rst index 1d92c089..93c43661 100644 --- a/doc/guides/freebsd_gsg/build_dpdk.rst +++ b/doc/guides/freebsd_gsg/build_dpdk.rst @@ -183,7 +183,7 @@ contains the kernel modules to install: ls x86_64-native-bsdapp-gcc - app build hostapp include kmod lib Makefile + app build include kmod lib Makefile .. _loading_contigmem: diff --git a/doc/guides/linux_gsg/build_dpdk.rst b/doc/guides/linux_gsg/build_dpdk.rst index 198c0b6f..fb2c481d 100644 --- a/doc/guides/linux_gsg/build_dpdk.rst +++ b/doc/guides/linux_gsg/build_dpdk.rst @@ -152,7 +152,7 @@ A kmod directory is also present that contains kernel modules which may be load ls x86_64-native-linuxapp-gcc - app build hostapp include kmod lib Makefile + app build include kmod lib Makefile Loading Modules to Enable Userspace IO for DPDK ----------------------------------------------- diff --git a/doc/guides/linux_gsg/enable_func.rst b/doc/guides/linux_gsg/enable_func.rst index ec0e04d9..04e066c9 100644 --- a/doc/guides/linux_gsg/enable_func.rst +++ b/doc/guides/linux_gsg/enable_func.rst @@ -183,8 +183,8 @@ High Performance of Small Packets on 40G NIC As there might be firmware fixes for performance enhancement in latest version of firmware image, the firmware update might be needed for getting high performance. Check with the local Intel's Network Division application engineers for firmware updates. -The base driver to support firmware version of FVL3E will be integrated in the next -DPDK release, so currently the validated firmware version is 4.2.6. +Users should consult the release notes specific to a DPDK release to identify +the validated firmware version for a NIC using the i40e driver. Use 16 Bytes RX Descriptor Size ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ diff --git a/doc/guides/nics/overview.rst b/doc/guides/nics/overview.rst index a23eb5cc..572ced41 100644 --- a/doc/guides/nics/overview.rst +++ b/doc/guides/nics/overview.rst @@ -128,7 +128,7 @@ Most of these differences are summarized below. Packet type parsing Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Timesync Y Y Y Y Y Basic stats Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y - Extended stats Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y + Extended stats Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Stats per queue Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y EEPROM dump Y Y Y Y Registers dump Y Y Y Y Y Y Y Y diff --git a/doc/guides/nics/virtio.rst b/doc/guides/nics/virtio.rst index 06ca433a..c6335d40 100644 --- a/doc/guides/nics/virtio.rst +++ b/doc/guides/nics/virtio.rst @@ -73,7 +73,7 @@ In this release, the virtio PMD driver provides the basic functionality of packe * It supports multicast packets and promiscuous mode. -* The descriptor number for the RX/TX queue is hard-coded to be 256 by qemu. +* The descriptor number for the Rx/Tx queue is hard-coded to be 256 by qemu. If given a different descriptor number by the upper application, the virtio PMD generates a warning and fall back to the hard-coded value. @@ -163,8 +163,9 @@ Host2VM communication example which means received packets come from vEth0, and transmitted packets is sent to vEth0. #. In the guest, bind the virtio device to the uio_pci_generic kernel module and start the forwarding application. - When the virtio port in guest bursts rx, it is getting packets from the raw socket's receive queue. - When the virtio port bursts tx, it is sending packet to the tx_q. + When the virtio port in guest bursts Rx, it is getting packets from the + raw socket's receive queue. + When the virtio port bursts Tx, it is sending packet to the tx_q. .. code-block:: console @@ -183,7 +184,9 @@ Host2VM communication example The packet reception and transmission flow path is: - IXIA packet generator->82599 PF->KNI rx queue->KNI raw socket queue->Guest VM virtio port 0 rx burst->Guest VM virtio port 0 tx burst-> KNI tx queue->82599 PF-> IXIA packet generator + IXIA packet generator->82599 PF->KNI Rx queue->KNI raw socket queue->Guest + VM virtio port 0 Rx burst->Guest VM virtio port 0 Tx burst-> KNI Tx queue + ->82599 PF-> IXIA packet generator Virtio with qemu virtio Back End -------------------------------- @@ -206,8 +209,68 @@ Virtio with qemu virtio Back End In this example, the packet reception flow path is: - IXIA packet generator->82599 PF->Linux Bridge->TAP0's socket queue-> Guest VM virtio port 0 rx burst-> Guest VM 82599 VF port1 tx burst-> IXIA packet generator + IXIA packet generator->82599 PF->Linux Bridge->TAP0's socket queue-> Guest + VM virtio port 0 Rx burst-> Guest VM 82599 VF port1 Tx burst-> IXIA packet + generator The packet transmission flow is: - IXIA packet generator-> Guest VM 82599 VF port1 rx burst-> Guest VM virtio port 0 tx burst-> tap -> Linux Bridge->82599 PF-> IXIA packet generator + IXIA packet generator-> Guest VM 82599 VF port1 Rx burst-> Guest VM virtio + port 0 Tx burst-> tap -> Linux Bridge->82599 PF-> IXIA packet generator + + +Virtio PMD Rx/Tx Callbacks +-------------------------- + +Virtio driver has 3 Rx callbacks and 2 Tx callbacks. + +Rx callbacks: + +#. ``virtio_recv_pkts``: + Regular version without mergeable Rx buffer support. + +#. ``virtio_recv_mergeable_pkts``: + Regular version with mergeable Rx buffer support. + +#. ``virtio_recv_pkts_vec``: + Vector version without mergeable Rx buffer support, also fixes the available + ring indexes and uses vector instructions to optimize performance. + +Tx callbacks: + +#. ``virtio_xmit_pkts``: + Regular version. + +#. ``virtio_xmit_pkts_simple``: + Vector version fixes the available ring indexes to optimize performance. + + +By default, the non-vector callbacks are used: + +* For Rx: If mergeable Rx buffers is disabled then ``virtio_recv_pkts`` is + used; otherwise ``virtio_recv_mergeable_pkts``. + +* For Tx: ``virtio_xmit_pkts``. + + +Vector callbacks will be used when: + +* ``txq_flags`` is set to ``VIRTIO_SIMPLE_FLAGS`` (0xF01), which implies: + + * Single segment is specified. + + * No offload support is needed. + +* Mergeable Rx buffers is disabled. + +The corresponding callbacks are: + +* For Rx: ``virtio_recv_pkts_vec``. + +* For Tx: ``virtio_xmit_pkts_simple``. + + +Example of using the vector version of the virtio poll mode driver in +``testpmd``:: + + testpmd -c 0x7 -n 4 -- -i --txqflags=0xF01 --rxq=1 --txq=1 --nb-cores=1 diff --git a/doc/guides/prog_guide/dev_kit_build_system.rst b/doc/guides/prog_guide/dev_kit_build_system.rst index 3e89eaec..18a30104 100644 --- a/doc/guides/prog_guide/dev_kit_build_system.rst +++ b/doc/guides/prog_guide/dev_kit_build_system.rst @@ -70,7 +70,7 @@ Each build directory contains include files, libraries, and applications: ... ~/DEV/DPDK$ ls i686-native-linuxapp-gcc - app build hostapp include kmod lib Makefile + app build buildtools include kmod lib Makefile ~/DEV/DPDK$ ls i686-native-linuxapp-gcc/app/ @@ -264,7 +264,7 @@ These Makefiles generate a binary application. * rte.extapp.mk: External application -* rte.hostapp.mk: Host application in the development kit framework +* rte.hostapp.mk: prerequisite tool to build dpdk Library ^^^^^^^ @@ -304,6 +304,44 @@ Misc * rte.subdir.mk: Build several directories in the development kit framework. +.. _Internally_Generated_Build_Tools: + +Internally Generated Build Tools +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +``app/pmdinfogen`` + + +``pmdinfogen`` scans an object (.o) file for various well known symbol names. These +well known symbol names are defined by various macros and used to export +important information about hardware support and usage for pmd files. For +instance the macro: + +.. code-block:: c + + PMD_REGISTER_DRIVER(drv, name) + +Creates the following symbol: + +.. code-block:: c + + static char this_pmd_name0[] __attribute__((used)) = "<name>"; + + +Which pmdinfogen scans for. Using this information other relevant bits of data +can be exported from the object file and used to produce a hardware support +description, that pmdinfogen then encodes into a json formatted string in the +following format: + +.. code-block:: c + + static char <name_pmd_string>="PMD_INFO_STRING=\"{'name' : '<name>', ...}\""; + + +These strings can then be searched for by external tools to determine the +hardware support of a given library or application. + + .. _Useful_Variables_Provided_by_the_Build_System: Useful Variables Provided by the Build System diff --git a/doc/guides/rel_notes/release_16_07.rst b/doc/guides/rel_notes/release_16_07.rst index 569f562f..e2af1474 100644 --- a/doc/guides/rel_notes/release_16_07.rst +++ b/doc/guides/rel_notes/release_16_07.rst @@ -195,6 +195,21 @@ Resolved Issues EAL ~~~ +* **igb_uio: Fixed possible mmap failure for Linux >= 4.5.** + + mmaping the iomem range of the PCI device fails for kernels that + enabled CONFIG_IO_STRICT_DEVMEM option: + + EAL: pci_map_resource(): + cannot mmap(39, 0x7f1c51800000, 0x100000, 0x0): + Invalid argument (0xffffffffffffffff) + + CONFIG_IO_STRICT_DEVMEM is introduced in Linux v4.5 + + Updated igb_uio to stop reserving PCI memory resources, from + kernel point of view iomem region looks like idle and mmap worked + again. This matches uio_pci_generic usage. + Drivers ~~~~~~~ diff --git a/doc/guides/sample_app_ug/l3_forward.rst b/doc/guides/sample_app_ug/l3_forward.rst index 491f99d9..c885cdb7 100644 --- a/doc/guides/sample_app_ug/l3_forward.rst +++ b/doc/guides/sample_app_ug/l3_forward.rst @@ -88,32 +88,46 @@ To compile the application: Running the Application ----------------------- -The application has a number of command line options: +The application has a number of command line options:: -.. code-block:: console + ./l3fwd [EAL options] -- -p PORTMASK + [-P] + [-E] + [-L] + --config(port,queue,lcore)[,(port,queue,lcore)] + [--eth-dest=X,MM:MM:MM:MM:MM:MM] + [--enable-jumbo [--max-pkt-len PKTLEN]] + [--no-numa] + [--hash-entry-num] + [--ipv6] + [--parse-ptype] + +Where, + +* ``-p PORTMASK:`` Hexadecimal bitmask of ports to configure - ./build/l3fwd [EAL options] -- -p PORTMASK [-P] --config(port,queue,lcore)[,(port,queue,lcore)] [--enable-jumbo [--max-pkt-len PKTLEN]] [--no-numa][--hash-entry-num][--ipv6] [--parse-ptype] +* ``-P:`` Optional, sets all ports to promiscuous mode so that packets are accepted regardless of the packet's Ethernet MAC destination address. + Without this option, only packets with the Ethernet MAC destination address set to the Ethernet address of the port are accepted. -where, +* ``-E:`` Optional, enable exact match. -* -p PORTMASK: Hexadecimal bitmask of ports to configure +* ``-L:`` Optional, enable longest prefix match. -* -P: optional, sets all ports to promiscuous mode so that packets are accepted regardless of the packet's Ethernet MAC destination address. - Without this option, only packets with the Ethernet MAC destination address set to the Ethernet address of the port are accepted. +* ``--config (port,queue,lcore)[,(port,queue,lcore)]:`` Determines which queues from which ports are mapped to which cores. -* --config (port,queue,lcore)[,(port,queue,lcore)]: determines which queues from which ports are mapped to which cores +* ``--eth-dest=X,MM:MM:MM:MM:MM:MM:`` Optional, ethernet destination for port X. -* --enable-jumbo: optional, enables jumbo frames +* ``--enable-jumbo:`` Optional, enables jumbo frames. -* --max-pkt-len: optional, maximum packet length in decimal (64-9600) +* ``--max-pkt-len:`` Optional, under the premise of enabling jumbo, maximum packet length in decimal (64-9600). -* --no-numa: optional, disables numa awareness +* ``--no-numa:`` Optional, disables numa awareness. -* --hash-entry-num: optional, specifies the hash entry number in hexadecimal to be setup +* ``--hash-entry-num:`` Optional, specifies the hash entry number in hexadecimal to be setup. -* --ipv6: optional, set it if running ipv6 packets +* ``--ipv6:`` Optional, set if running ipv6 packets. -* --parse-ptype: optional, set it if use software way to analyze packet type +* ``--parse-ptype:`` Optional, set to use software to analyze packet type. Without this option, hardware will check the packet type. For example, consider a dual processor socket platform where cores 0-7 and 16-23 appear on socket 0, while cores 8-15 and 24-31 appear on socket 1. Let's say that the programmer wants to use memory from both NUMA nodes, the platform has only two ports, one connected to each NUMA node, |