Imported upstream release 16.04

* gbp import-orig ../dpdk-16.04.tar.xz

Change-Id: Iac2196db782ba322f6974d8a752acc34ce5024c3
Signed-off-by: C.J. Collier <cjcollier@linuxfoundation.org>

1 files changed, 589 insertions, 0 deletions

diff --git a/doc/guides/nics/cxgbe.rst b/doc/guides/nics/cxgbe.rst
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+..  BSD LICENSE
+    Copyright 2015 Chelsio Communications.
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+
+    * Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in
+    the documentation and/or other materials provided with the
+    distribution.
+    * Neither the name of Chelsio Communications nor the names of its
+    contributors may be used to endorse or promote products derived
+    from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+    OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+    LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+CXGBE Poll Mode Driver
+======================
+
+The CXGBE PMD (**librte_pmd_cxgbe**) provides poll mode driver support
+for **Chelsio T5** 10/40 Gbps family of adapters. CXGBE PMD has support
+for the latest Linux and FreeBSD operating systems.
+
+More information can be found at `Chelsio Communications Official Website
+<http://www.chelsio.com>`_.
+
+Features
+--------
+
+CXGBE PMD has support for:
+
+- Multiple queues for TX and RX
+- Receiver Side Steering (RSS)
+- VLAN filtering
+- Checksum offload
+- Promiscuous mode
+- All multicast mode
+- Port hardware statistics
+- Jumbo frames
+
+Limitations
+-----------
+
+The Chelsio T5 devices provide two/four ports but expose a single PCI bus
+address, thus, librte_pmd_cxgbe registers itself as a
+PCI driver that allocates one Ethernet device per detected port.
+
+For this reason, one cannot whitelist/blacklist a single port without
+whitelisting/blacklisting the other ports on the same device.
+
+Supported Chelsio T5 NICs
+-------------------------
+
+- 1G NICs: T502-BT
+- 10G NICs: T520-BT, T520-CR, T520-LL-CR, T520-SO-CR, T540-CR
+- 40G NICs: T580-CR, T580-LP-CR, T580-SO-CR
+- Other T5 NICs: T522-CR
+
+Prerequisites
+-------------
+
+- Requires firmware version **1.13.32.0** and higher. Visit
+  `Chelsio Download Center <http://service.chelsio.com>`_ to get latest firmware
+  bundled with the latest Chelsio Unified Wire package.
+
+  For Linux, installing and loading the latest cxgb4 kernel driver from the
+  Chelsio Unified Wire package should get you the latest firmware. More
+  information can be obtained from the User Guide that is bundled with the
+  Chelsio Unified Wire package.
+
+  For FreeBSD, the latest firmware obtained from the Chelsio Unified Wire
+  package must be manually flashed via cxgbetool available in FreeBSD source
+  repository.
+
+  Instructions on how to manually flash the firmware are given in section
+  :ref:`linux-installation` for Linux and section :ref:`freebsd-installation`
+  for FreeBSD.
+
+Pre-Installation Configuration
+------------------------------
+
+Config File Options
+~~~~~~~~~~~~~~~~~~~
+
+The following options can be modified in the ``.config`` file. Please note that
+enabling debugging options may affect system performance.
+
+- ``CONFIG_RTE_LIBRTE_CXGBE_PMD`` (default **y**)
+
+  Toggle compilation of librte_pmd_cxgbe driver.
+
+- ``CONFIG_RTE_LIBRTE_CXGBE_DEBUG`` (default **n**)
+
+  Toggle display of generic debugging messages.
+
+- ``CONFIG_RTE_LIBRTE_CXGBE_DEBUG_REG`` (default **n**)
+
+  Toggle display of registers related run-time check messages.
+
+- ``CONFIG_RTE_LIBRTE_CXGBE_DEBUG_MBOX`` (default **n**)
+
+  Toggle display of firmware mailbox related run-time check messages.
+
+- ``CONFIG_RTE_LIBRTE_CXGBE_DEBUG_TX`` (default **n**)
+
+  Toggle display of transmission data path run-time check messages.
+
+- ``CONFIG_RTE_LIBRTE_CXGBE_DEBUG_RX`` (default **n**)
+
+  Toggle display of receiving data path run-time check messages.
+
+.. _driver-compilation:
+
+Driver Compilation
+~~~~~~~~~~~~~~~~~~
+
+To compile CXGBE PMD for Linux x86_64 gcc target, run the following "make"
+command:
+
+.. code-block:: console
+
+   cd <DPDK-source-directory>
+   make config T=x86_64-native-linuxapp-gcc install
+
+To compile CXGBE PMD for FreeBSD x86_64 clang target, run the following "gmake"
+command:
+
+.. code-block:: console
+
+   cd <DPDK-source-directory>
+   gmake config T=x86_64-native-bsdapp-clang install
+
+Linux
+-----
+
+.. _linux-installation:
+
+Linux Installation
+~~~~~~~~~~~~~~~~~~
+
+Steps to manually install the latest firmware from the downloaded Chelsio
+Unified Wire package for Linux operating system are as follows:
+
+#. Load the kernel module:
+
+   .. code-block:: console
+
+      modprobe cxgb4
+
+#. Use ifconfig to get the interface name assigned to Chelsio card:
+
+   .. code-block:: console
+
+      ifconfig -a | grep "00:07:43"
+
+   Example output:
+
+   .. code-block:: console
+
+      p1p1      Link encap:Ethernet  HWaddr 00:07:43:2D:EA:C0
+      p1p2      Link encap:Ethernet  HWaddr 00:07:43:2D:EA:C8
+
+#. Install cxgbtool:
+
+   .. code-block:: console
+
+      cd <path_to_uwire>/tools/cxgbtool
+      make install
+
+#. Use cxgbtool to load the firmware config file onto the card:
+
+   .. code-block:: console
+
+      cxgbtool p1p1 loadcfg <path_to_uwire>/src/network/firmware/t5-config.txt
+
+#. Use cxgbtool to load the firmware image onto the card:
+
+   .. code-block:: console
+
+      cxgbtool p1p1 loadfw <path_to_uwire>/src/network/firmware/t5fw-*.bin
+
+#. Unload and reload the kernel module:
+
+   .. code-block:: console
+
+      modprobe -r cxgb4
+      modprobe cxgb4
+
+#. Verify with ethtool:
+
+   .. code-block:: console
+
+      ethtool -i p1p1 | grep "firmware"
+
+   Example output:
+
+   .. code-block:: console
+
+      firmware-version: 1.13.32.0, TP 0.1.4.8
+
+Running testpmd
+~~~~~~~~~~~~~~~
+
+This section demonstrates how to launch **testpmd** with Chelsio T5
+devices managed by librte_pmd_cxgbe in Linux operating system.
+
+#. Change to DPDK source directory where the target has been compiled in
+   section :ref:`driver-compilation`:
+
+   .. code-block:: console
+
+      cd <DPDK-source-directory>
+
+#. Load the kernel module:
+
+   .. code-block:: console
+
+      modprobe cxgb4
+
+#. Get the PCI bus addresses of the interfaces bound to cxgb4 driver:
+
+   .. code-block:: console
+
+      dmesg | tail -2
+
+   Example output:
+
+   .. code-block:: console
+
+      cxgb4 0000:02:00.4 p1p1: renamed from eth0
+      cxgb4 0000:02:00.4 p1p2: renamed from eth1
+
+   .. note::
+
+      Both the interfaces of a Chelsio T5 2-port adapter are bound to the
+      same PCI bus address.
+
+#. Unload the kernel module:
+
+   .. code-block:: console
+
+      modprobe -ar cxgb4 csiostor
+
+#. Request huge pages:
+
+   .. code-block:: console
+
+      echo 1024 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages/nr_hugepages
+
+#. Mount huge pages:
+
+   .. code-block:: console
+
+      mkdir /mnt/huge
+      mount -t hugetlbfs nodev /mnt/huge
+
+#. Load igb_uio or vfio-pci driver:
+
+   .. code-block:: console
+
+      insmod ./x86_64-native-linuxapp-gcc/kmod/igb_uio.ko
+
+   or
+
+   .. code-block:: console
+
+      modprobe vfio-pci
+
+#. Bind the Chelsio T5 adapters to igb_uio or vfio-pci loaded in the previous
+   step:
+
+   .. code-block:: console
+
+      ./tools/dpdk_nic_bind.py --bind igb_uio 0000:02:00.4
+
+   or
+
+   Setup VFIO permissions for regular users and then bind to vfio-pci:
+
+   .. code-block:: console
+
+      sudo chmod a+x /dev/vfio
+
+      sudo chmod 0666 /dev/vfio/*
+
+      ./tools/dpdk_nic_bind.py --bind vfio-pci 0000:02:00.4
+
+   .. note::
+
+      Currently, CXGBE PMD only supports the binding of PF4 for Chelsio T5 NICs.
+
+#. Start testpmd with basic parameters:
+
+   .. code-block:: console
+
+      ./x86_64-native-linuxapp-gcc/app/testpmd -c 0xf -n 4 -w 0000:02:00.4 -- -i
+
+   Example output:
+
+   .. code-block:: console
+
+      [...]
+      EAL: PCI device 0000:02:00.4 on NUMA socket -1
+      EAL:   probe driver: 1425:5401 rte_cxgbe_pmd
+      EAL:   PCI memory mapped at 0x7fd7c0200000
+      EAL:   PCI memory mapped at 0x7fd77cdfd000
+      EAL:   PCI memory mapped at 0x7fd7c10b7000
+      PMD: rte_cxgbe_pmd: fw: 1.13.32.0, TP: 0.1.4.8
+      PMD: rte_cxgbe_pmd: Coming up as MASTER: Initializing adapter
+      Interactive-mode selected
+      Configuring Port 0 (socket 0)
+      Port 0: 00:07:43:2D:EA:C0
+      Configuring Port 1 (socket 0)
+      Port 1: 00:07:43:2D:EA:C8
+      Checking link statuses...
+      PMD: rte_cxgbe_pmd: Port0: passive DA port module inserted
+      PMD: rte_cxgbe_pmd: Port1: passive DA port module inserted
+      Port 0 Link Up - speed 10000 Mbps - full-duplex
+      Port 1 Link Up - speed 10000 Mbps - full-duplex
+      Done
+      testpmd>
+
+.. note::
+
+   Flow control pause TX/RX is disabled by default and can be enabled via
+   testpmd. Refer section :ref:`flow-control` for more details.
+
+FreeBSD
+-------
+
+.. _freebsd-installation:
+
+FreeBSD Installation
+~~~~~~~~~~~~~~~~~~~~
+
+Steps to manually install the latest firmware from the downloaded Chelsio
+Unified Wire package for FreeBSD operating system are as follows:
+
+#. Load the kernel module:
+
+   .. code-block:: console
+
+      kldload if_cxgbe
+
+#. Use dmesg to get the t5nex instance assigned to the Chelsio card:
+
+   .. code-block:: console
+
+      dmesg | grep "t5nex"
+
+   Example output:
+
+   .. code-block:: console
+
+      t5nex0: <Chelsio T520-CR> irq 16 at device 0.4 on pci2
+      cxl0: <port 0> on t5nex0
+      cxl1: <port 1> on t5nex0
+      t5nex0: PCIe x8, 2 ports, 14 MSI-X interrupts, 31 eq, 13 iq
+
+   In the example above, a Chelsio T520-CR card is bound to a t5nex0 instance.
+
+#. Install cxgbetool from FreeBSD source repository:
+
+   .. code-block:: console
+
+      cd <path_to_FreeBSD_source>/tools/tools/cxgbetool/
+      make && make install
+
+#. Use cxgbetool to load the firmware image onto the card:
+
+   .. code-block:: console
+
+      cxgbetool t5nex0 loadfw <path_to_uwire>/src/network/firmware/t5fw-*.bin
+
+#. Unload and reload the kernel module:
+
+   .. code-block:: console
+
+      kldunload if_cxgbe
+      kldload if_cxgbe
+
+#. Verify with sysctl:
+
+   .. code-block:: console
+
+      sysctl -a | grep "t5nex" | grep "firmware"
+
+   Example output:
+
+   .. code-block:: console
+
+      dev.t5nex.0.firmware_version: 1.13.32.0
+
+Running testpmd
+~~~~~~~~~~~~~~~
+
+This section demonstrates how to launch **testpmd** with Chelsio T5
+devices managed by librte_pmd_cxgbe in FreeBSD operating system.
+
+#. Change to DPDK source directory where the target has been compiled in
+   section :ref:`driver-compilation`:
+
+   .. code-block:: console
+
+      cd <DPDK-source-directory>
+
+#. Copy the contigmem kernel module to /boot/kernel directory:
+
+   .. code-block:: console
+
+      cp x86_64-native-bsdapp-clang/kmod/contigmem.ko /boot/kernel/
+
+#. Add the following lines to /boot/loader.conf:
+
+   .. code-block:: console
+
+      # reserve 2 x 1G blocks of contiguous memory using contigmem driver
+      hw.contigmem.num_buffers=2
+      hw.contigmem.buffer_size=1073741824
+      # load contigmem module during boot process
+      contigmem_load="YES"
+
+   The above lines load the contigmem kernel module during boot process and
+   allocate 2 x 1G blocks of contiguous memory to be used for DPDK later on.
+   This is to avoid issues with potential memory fragmentation during later
+   system up time, which may result in failure of allocating the contiguous
+   memory required for the contigmem kernel module.
+
+#. Restart the system and ensure the contigmem module is loaded successfully:
+
+   .. code-block:: console
+
+      reboot
+      kldstat | grep "contigmem"
+
+   Example output:
+
+   .. code-block:: console
+
+      2    1 0xffffffff817f1000 3118     contigmem.ko
+
+#. Repeat step 1 to ensure that you are in the DPDK source directory.
+
+#. Load the cxgbe kernel module:
+
+   .. code-block:: console
+
+      kldload if_cxgbe
+
+#. Get the PCI bus addresses of the interfaces bound to t5nex driver:
+
+   .. code-block:: console
+
+      pciconf -l | grep "t5nex"
+
+   Example output:
+
+   .. code-block:: console
+
+      t5nex0@pci0:2:0:4: class=0x020000 card=0x00001425 chip=0x54011425 rev=0x00
+
+   In the above example, the t5nex0 is bound to 2:0:4 bus address.
+
+   .. note::
+
+      Both the interfaces of a Chelsio T5 2-port adapter are bound to the
+      same PCI bus address.
+
+#. Unload the kernel module:
+
+   .. code-block:: console
+
+      kldunload if_cxgbe
+
+#. Set the PCI bus addresses to hw.nic_uio.bdfs kernel environment parameter:
+
+   .. code-block:: console
+
+      kenv hw.nic_uio.bdfs="2:0:4"
+
+   This automatically binds 2:0:4 to nic_uio kernel driver when it is loaded in
+   the next step.
+
+   .. note::
+
+      Currently, CXGBE PMD only supports the binding of PF4 for Chelsio T5 NICs.
+
+#. Load nic_uio kernel driver:
+
+   .. code-block:: console
+
+      kldload ./x86_64-native-bsdapp-clang/kmod/nic_uio.ko
+
+#. Start testpmd with basic parameters:
+
+   .. code-block:: console
+
+      ./x86_64-native-bsdapp-clang/app/testpmd -c 0xf -n 4 -w 0000:02:00.4 -- -i
+
+   Example output:
+
+   .. code-block:: console
+
+      [...]
+      EAL: PCI device 0000:02:00.4 on NUMA socket 0
+      EAL:   probe driver: 1425:5401 rte_cxgbe_pmd
+      EAL:   PCI memory mapped at 0x8007ec000
+      EAL:   PCI memory mapped at 0x842800000
+      EAL:   PCI memory mapped at 0x80086c000
+      PMD: rte_cxgbe_pmd: fw: 1.13.32.0, TP: 0.1.4.8
+      PMD: rte_cxgbe_pmd: Coming up as MASTER: Initializing adapter
+      Interactive-mode selected
+      Configuring Port 0 (socket 0)
+      Port 0: 00:07:43:2D:EA:C0
+      Configuring Port 1 (socket 0)
+      Port 1: 00:07:43:2D:EA:C8
+      Checking link statuses...
+      PMD: rte_cxgbe_pmd: Port0: passive DA port module inserted
+      PMD: rte_cxgbe_pmd: Port1: passive DA port module inserted
+      Port 0 Link Up - speed 10000 Mbps - full-duplex
+      Port 1 Link Up - speed 10000 Mbps - full-duplex
+      Done
+      testpmd>
+
+.. note::
+
+   Flow control pause TX/RX is disabled by default and can be enabled via
+   testpmd. Refer section :ref:`flow-control` for more details.
+
+Sample Application Notes
+------------------------
+
+.. _flow-control:
+
+Enable/Disable Flow Control
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Flow control pause TX/RX is disabled by default and can be enabled via
+testpmd as follows:
+
+.. code-block:: console
+
+   testpmd> set flow_ctrl rx on tx on 0 0 0 0 mac_ctrl_frame_fwd off autoneg on 0
+   testpmd> set flow_ctrl rx on tx on 0 0 0 0 mac_ctrl_frame_fwd off autoneg on 1
+
+To disable again, run:
+
+.. code-block:: console
+
+   testpmd> set flow_ctrl rx off tx off 0 0 0 0 mac_ctrl_frame_fwd off autoneg off 0
+   testpmd> set flow_ctrl rx off tx off 0 0 0 0 mac_ctrl_frame_fwd off autoneg off 1
+
+Jumbo Mode
+~~~~~~~~~~
+
+There are two ways to enable sending and receiving of jumbo frames via testpmd.
+One method involves using the **mtu** command, which changes the mtu of an
+individual port without having to stop the selected port. Another method
+involves stopping all the ports first and then running **max-pkt-len** command
+to configure the mtu of all the ports with a single command.
+
+- To configure each port individually, run the mtu command as follows:
+
+  .. code-block:: console
+
+     testpmd> port config mtu 0 9000
+     testpmd> port config mtu 1 9000
+
+- To configure all the ports at once, stop all the ports first and run the
+  max-pkt-len command as follows:
+
+  .. code-block:: console
+
+     testpmd> port stop all
+     testpmd> port config all max-pkt-len 9000