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31 BNX2X Poll Mode Driver
32 ======================
34 The BNX2X poll mode driver library (**librte_pmd_bnx2x**) implements support
35 for **QLogic 578xx** 10/20 Gbps family of adapters as well as their virtual
36 functions (VF) in SR-IOV context. It is supported on several standard Linux
37 distros like Red Hat 7.x and SLES12 OS. It is compile-tested under FreeBSD OS.
39 More information can be found at `QLogic Corporation's Official Website
40 <http://www.qlogic.com>`_.
45 BNX2X PMD has support for:
48 - Unicast/multicast filtering
50 - Port hardware statistics
53 Non-supported Features
54 ----------------------
56 The features not yet supported include:
58 - TSS (Transmit Side Scaling)
59 - RSS (Receive Side Scaling)
64 Co-existence considerations
65 ---------------------------
67 - BCM578xx being a CNA can have both NIC and Storage personalities.
68 However, coexistence with storage protocol drivers (cnic, bnx2fc and
69 bnx2fi) is not supported on the same adapter. So storage personality
70 has to be disabled on that adapter when used in DPDK applications.
72 - For SR-IOV case, bnx2x PMD will be used to bind to SR-IOV VF device and
73 Linux native kernel driver (bnx2x) will be attached to SR-IOV PF.
84 - Requires firmware version **7.2.51.0**. It is inbox on most of the
85 standard Linux distros. If it is not available visit
86 `QLogic Driver Download Center <http://driverdownloads.qlogic.com>`_
87 to get the required firmware.
89 Pre-Installation Configuration
90 ------------------------------
95 The following options can be modified in the ``.config`` file. Please note that
96 enabling debugging options may affect system performance.
98 - ``CONFIG_RTE_LIBRTE_BNX2X_PMD`` (default **y**)
100 Toggle compilation of bnx2x driver.
102 - ``CONFIG_RTE_LIBRTE_BNX2X_DEBUG`` (default **n**)
104 Toggle display of generic debugging messages.
106 - ``CONFIG_RTE_LIBRTE_BNX2X_DEBUG_INIT`` (default **n**)
108 Toggle display of initialization related messages.
110 - ``CONFIG_RTE_LIBRTE_BNX2X_DEBUG_TX`` (default **n**)
112 Toggle display of transmit fast path run-time messages.
114 - ``CONFIG_RTE_LIBRTE_BNX2X_DEBUG_RX`` (default **n**)
116 Toggle display of receive fast path run-time messages.
118 - ``CONFIG_RTE_LIBRTE_BNX2X_DEBUG_PERIODIC`` (default **n**)
120 Toggle display of register reads and writes.
123 .. _bnx2x_driver-compilation:
128 BNX2X PMD for Linux x86_64 gcc target, run the following "make"
131 cd <DPDK-source-directory>
132 make config T=x86_64-native-linuxapp-gcc install
134 To compile BNX2X PMD for Linux x86_64 clang target, run the following "make"
137 cd <DPDK-source-directory>
138 make config T=x86_64-native-linuxapp-clang install
140 To compile BNX2X PMD for Linux i686 gcc target, run the following "make"
143 cd <DPDK-source-directory>
144 make config T=i686-native-linuxapp-gcc install
146 To compile BNX2X PMD for FreeBSD x86_64 clang target, run the following "gmake"
149 cd <DPDK-source-directory>
150 gmake config T=x86_64-native-bsdapp-clang install
152 To compile BNX2X PMD for FreeBSD x86_64 gcc target, run the following "gmake"
155 cd <DPDK-source-directory>
156 gmake config T=x86_64-native-bsdapp-gcc install -Wl,-rpath=/usr/local/lib/gcc48 CC=gcc48
161 .. _bnx2x_Linux-installation:
166 Sample Application Notes
167 ~~~~~~~~~~~~~~~~~~~~~~~~
169 This section demonstrates how to launch ``testpmd`` with QLogic 578xx
170 devices managed by ``librte_pmd_bnx2x`` in Linux operating system.
172 #. Request huge pages:
174 .. code-block:: console
176 echo 1024 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages/nr_hugepages
178 #. Load ``igb_uio`` or ``vfio-pci`` driver:
180 .. code-block:: console
182 insmod ./x86_64-native-linuxapp-gcc/kmod/igb_uio.ko
186 .. code-block:: console
190 #. Bind the QLogic adapters to ``igb_uio`` or ``vfio-pci`` loaded in the
193 ./tools/dpdk_nic_bind.py --bind igb_uio 0000:84:00.0 0000:84:00.1
197 Setup VFIO permissions for regular users and then bind to ``vfio-pci``:
199 .. code-block:: console
201 sudo chmod a+x /dev/vfio
203 sudo chmod 0666 /dev/vfio/*
205 ./tools/dpdk_nic_bind.py --bind vfio-pci 0000:84:00.0 0000:84:00.1
207 #. Start ``testpmd`` with basic parameters:
209 .. code-block:: console
211 ./x86_64-native-linuxapp-gcc/app/testpmd -c 0xf -n 4 -- -i
215 .. code-block:: console
218 EAL: PCI device 0000:84:00.0 on NUMA socket 1
219 EAL: probe driver: 14e4:168e rte_bnx2x_pmd
220 EAL: PCI memory mapped at 0x7f14f6fe5000
221 EAL: PCI memory mapped at 0x7f14f67e5000
222 EAL: PCI memory mapped at 0x7f15fbd9b000
223 EAL: PCI device 0000:84:00.1 on NUMA socket 1
224 EAL: probe driver: 14e4:168e rte_bnx2x_pmd
225 EAL: PCI memory mapped at 0x7f14f5fe5000
226 EAL: PCI memory mapped at 0x7f14f57e5000
227 EAL: PCI memory mapped at 0x7f15fbd4f000
228 Interactive-mode selected
229 Configuring Port 0 (socket 0)
230 PMD: bnx2x_dev_tx_queue_setup(): fp[00] req_bd=512, thresh=512,
231 usable_bd=1020, total_bd=1024,
233 PMD: bnx2x_dev_rx_queue_setup(): fp[00] req_bd=128, thresh=0,
234 usable_bd=510, total_bd=512,
235 rx_pages=1, cq_pages=8
236 PMD: bnx2x_print_adapter_info():
238 Checking link statuses...
239 Port 0 Link Up - speed 10000 Mbps - full-duplex
240 Port 1 Link Up - speed 10000 Mbps - full-duplex
244 SR-IOV: Prerequisites and sample Application Notes
245 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
247 This section provides instructions to configure SR-IOV with Linux OS.
249 #. Verify SR-IOV and ARI capabilities are enabled on the adapter using ``lspci``:
251 .. code-block:: console
257 .. code-block:: console
260 Capabilities: [1b8 v1] Alternative Routing-ID Interpretation (ARI)
262 Capabilities: [1c0 v1] Single Root I/O Virtualization (SR-IOV)
264 Kernel driver in use: igb_uio
266 #. Load the kernel module:
268 .. code-block:: console
274 .. code-block:: console
276 systemd-udevd[4848]: renamed network interface eth0 to ens5f0
277 systemd-udevd[4848]: renamed network interface eth1 to ens5f1
279 #. Bring up the PF ports:
281 .. code-block:: console
286 #. Create VF device(s):
288 Echo the number of VFs to be created into "sriov_numvfs" sysfs entry
293 .. code-block:: console
295 echo 2 > /sys/devices/pci0000:00/0000:00:03.0/0000:81:00.0/sriov_numvfs
298 #. Assign VF MAC address:
300 Assign MAC address to the VF using iproute2 ulility. The syntax is:
301 ip link set <PF iface> vf <VF id> mac <macaddr>
305 .. code-block:: console
307 ip link set ens5f0 vf 0 mac 52:54:00:2f:9d:e8
312 The VF devices may be passed through to the guest VM using virt-manager or
313 virsh etc. bnx2x PMD should be used to bind the VF devices in the guest VM
314 using the instructions outlined in the Application notes below.