2 Copyright 2015 Chelsio Communications.
5 Redistribution and use in source and binary forms, with or without
6 modification, are permitted provided that the following conditions
9 * Redistributions of source code must retain the above copyright
10 notice, this list of conditions and the following disclaimer.
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12 notice, this list of conditions and the following disclaimer in
13 the documentation and/or other materials provided with the
15 * Neither the name of Chelsio Communications nor the names of its
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29 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 CXGBE Poll Mode Driver
32 ======================
34 The CXGBE PMD (**librte_pmd_cxgbe**) provides poll mode driver support
35 for **Chelsio T5** 10/40 Gbps family of adapters. CXGBE PMD has support
36 for the latest Linux and FreeBSD operating systems.
38 More information can be found at `Chelsio Communications Official Website
39 <http://www.chelsio.com>`_.
44 CXGBE PMD has support for:
46 - Multiple queues for TX and RX
47 - Receiver Side Steering (RSS)
52 - Port hardware statistics
57 The Chelsio T5 devices provide two/four ports but expose a single PCI bus
58 address, thus, librte_pmd_cxgbe registers itself as a
59 PCI driver that allocates one Ethernet device per detected port.
61 For this reason, one cannot whitelist/blacklist a single port without
62 whitelisting/blacklisting the other ports on the same device.
64 Supported Chelsio T5 NICs
65 -------------------------
68 - 10G NICs: T520-BT, T520-CR, T520-LL-CR, T520-SO-CR, T540-CR
69 - 40G NICs: T580-CR, T580-LP-CR, T580-SO-CR
70 - Other T5 NICs: T522-CR
75 - Requires firmware version **1.13.32.0** and higher. Visit
76 `Chelsio Download Center <http://service.chelsio.com>`_ to get latest firmware
77 bundled with the latest Chelsio Unified Wire package.
79 For Linux, installing and loading the latest cxgb4 kernel driver from the
80 Chelsio Unified Wire package should get you the latest firmware. More
81 information can be obtained from the User Guide that is bundled with the
82 Chelsio Unified Wire package.
84 For FreeBSD, the latest firmware obtained from the Chelsio Unified Wire
85 package must be manually flashed via cxgbetool available in FreeBSD source
88 Instructions on how to manually flash the firmware are given in section
89 :ref:`linux-installation` for Linux and section :ref:`freebsd-installation`
92 Pre-Installation Configuration
93 ------------------------------
98 The following options can be modified in the ``.config`` file. Please note that
99 enabling debugging options may affect system performance.
101 - ``CONFIG_RTE_LIBRTE_CXGBE_PMD`` (default **y**)
103 Toggle compilation of librte_pmd_cxgbe driver.
105 - ``CONFIG_RTE_LIBRTE_CXGBE_DEBUG`` (default **n**)
107 Toggle display of generic debugging messages.
109 - ``CONFIG_RTE_LIBRTE_CXGBE_DEBUG_REG`` (default **n**)
111 Toggle display of registers related run-time check messages.
113 - ``CONFIG_RTE_LIBRTE_CXGBE_DEBUG_MBOX`` (default **n**)
115 Toggle display of firmware mailbox related run-time check messages.
117 - ``CONFIG_RTE_LIBRTE_CXGBE_DEBUG_TX`` (default **n**)
119 Toggle display of transmission data path run-time check messages.
121 - ``CONFIG_RTE_LIBRTE_CXGBE_DEBUG_RX`` (default **n**)
123 Toggle display of receiving data path run-time check messages.
125 .. _driver-compilation:
130 To compile CXGBE PMD for Linux x86_64 gcc target, run the following "make"
133 .. code-block:: console
135 cd <DPDK-source-directory>
136 make config T=x86_64-native-linuxapp-gcc install
138 To compile CXGBE PMD for FreeBSD x86_64 clang target, run the following "gmake"
141 .. code-block:: console
143 cd <DPDK-source-directory>
144 gmake config T=x86_64-native-bsdapp-clang install
149 .. _linux-installation:
154 Steps to manually install the latest firmware from the downloaded Chelsio
155 Unified Wire package for Linux operating system are as follows:
157 #. Load the kernel module:
159 .. code-block:: console
163 #. Use ifconfig to get the interface name assigned to Chelsio card:
165 .. code-block:: console
167 ifconfig -a | grep "00:07:43"
171 .. code-block:: console
173 p1p1 Link encap:Ethernet HWaddr 00:07:43:2D:EA:C0
174 p1p2 Link encap:Ethernet HWaddr 00:07:43:2D:EA:C8
178 .. code-block:: console
180 cd <path_to_uwire>/tools/cxgbtool
183 #. Use cxgbtool to load the firmware config file onto the card:
185 .. code-block:: console
187 cxgbtool p1p1 loadcfg <path_to_uwire>/src/network/firmware/t5-config.txt
189 #. Use cxgbtool to load the firmware image onto the card:
191 .. code-block:: console
193 cxgbtool p1p1 loadfw <path_to_uwire>/src/network/firmware/t5fw-*.bin
195 #. Unload and reload the kernel module:
197 .. code-block:: console
202 #. Verify with ethtool:
204 .. code-block:: console
206 ethtool -i p1p1 | grep "firmware"
210 .. code-block:: console
212 firmware-version: 1.13.32.0, TP 0.1.4.8
217 This section demonstrates how to launch **testpmd** with Chelsio T5
218 devices managed by librte_pmd_cxgbe in Linux operating system.
220 #. Change to DPDK source directory where the target has been compiled in
221 section :ref:`driver-compilation`:
223 .. code-block:: console
225 cd <DPDK-source-directory>
227 #. Load the kernel module:
229 .. code-block:: console
233 #. Get the PCI bus addresses of the interfaces bound to cxgb4 driver:
235 .. code-block:: console
241 .. code-block:: console
243 cxgb4 0000:02:00.4 p1p1: renamed from eth0
244 cxgb4 0000:02:00.4 p1p2: renamed from eth1
248 Both the interfaces of a Chelsio T5 2-port adapter are bound to the
249 same PCI bus address.
251 #. Unload the kernel module:
253 .. code-block:: console
255 modprobe -ar cxgb4 csiostor
257 #. Request huge pages:
259 .. code-block:: console
261 echo 1024 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages/nr_hugepages
265 .. code-block:: console
268 mount -t hugetlbfs nodev /mnt/huge
270 #. Load igb_uio or vfio-pci driver:
272 .. code-block:: console
274 insmod ./x86_64-native-linuxapp-gcc/kmod/igb_uio.ko
278 .. code-block:: console
282 #. Bind the Chelsio T5 adapters to igb_uio or vfio-pci loaded in the previous
285 .. code-block:: console
287 ./tools/dpdk_nic_bind.py --bind igb_uio 0000:02:00.4
291 Setup VFIO permissions for regular users and then bind to vfio-pci:
293 .. code-block:: console
295 sudo chmod a+x /dev/vfio
297 sudo chmod 0666 /dev/vfio/*
299 ./tools/dpdk_nic_bind.py --bind vfio-pci 0000:02:00.4
303 Currently, CXGBE PMD only supports the binding of PF4 for Chelsio T5 NICs.
305 #. Start testpmd with basic parameters:
307 .. code-block:: console
309 ./x86_64-native-linuxapp-gcc/app/testpmd -c 0xf -n 4 -w 0000:02:00.4 -- -i
313 .. code-block:: console
316 EAL: PCI device 0000:02:00.4 on NUMA socket -1
317 EAL: probe driver: 1425:5401 rte_cxgbe_pmd
318 EAL: PCI memory mapped at 0x7fd7c0200000
319 EAL: PCI memory mapped at 0x7fd77cdfd000
320 EAL: PCI memory mapped at 0x7fd7c10b7000
321 PMD: rte_cxgbe_pmd: fw: 1.13.32.0, TP: 0.1.4.8
322 PMD: rte_cxgbe_pmd: Coming up as MASTER: Initializing adapter
323 Interactive-mode selected
324 Configuring Port 0 (socket 0)
325 Port 0: 00:07:43:2D:EA:C0
326 Configuring Port 1 (socket 0)
327 Port 1: 00:07:43:2D:EA:C8
328 Checking link statuses...
329 PMD: rte_cxgbe_pmd: Port0: passive DA port module inserted
330 PMD: rte_cxgbe_pmd: Port1: passive DA port module inserted
331 Port 0 Link Up - speed 10000 Mbps - full-duplex
332 Port 1 Link Up - speed 10000 Mbps - full-duplex
338 Flow control pause TX/RX is disabled by default and can be enabled via
339 testpmd. Refer section :ref:`flow-control` for more details.
344 .. _freebsd-installation:
349 Steps to manually install the latest firmware from the downloaded Chelsio
350 Unified Wire package for FreeBSD operating system are as follows:
352 #. Load the kernel module:
354 .. code-block:: console
358 #. Use dmesg to get the t5nex instance assigned to the Chelsio card:
360 .. code-block:: console
366 .. code-block:: console
368 t5nex0: <Chelsio T520-CR> irq 16 at device 0.4 on pci2
369 cxl0: <port 0> on t5nex0
370 cxl1: <port 1> on t5nex0
371 t5nex0: PCIe x8, 2 ports, 14 MSI-X interrupts, 31 eq, 13 iq
373 In the example above, a Chelsio T520-CR card is bound to a t5nex0 instance.
375 #. Install cxgbetool from FreeBSD source repository:
377 .. code-block:: console
379 cd <path_to_FreeBSD_source>/tools/tools/cxgbetool/
382 #. Use cxgbetool to load the firmware image onto the card:
384 .. code-block:: console
386 cxgbetool t5nex0 loadfw <path_to_uwire>/src/network/firmware/t5fw-*.bin
388 #. Unload and reload the kernel module:
390 .. code-block:: console
395 #. Verify with sysctl:
397 .. code-block:: console
399 sysctl -a | grep "t5nex" | grep "firmware"
403 .. code-block:: console
405 dev.t5nex.0.firmware_version: 1.13.32.0
410 This section demonstrates how to launch **testpmd** with Chelsio T5
411 devices managed by librte_pmd_cxgbe in FreeBSD operating system.
413 #. Change to DPDK source directory where the target has been compiled in
414 section :ref:`driver-compilation`:
416 .. code-block:: console
418 cd <DPDK-source-directory>
420 #. Copy the contigmem kernel module to /boot/kernel directory:
422 .. code-block:: console
424 cp x86_64-native-bsdapp-clang/kmod/contigmem.ko /boot/kernel/
426 #. Add the following lines to /boot/loader.conf:
428 .. code-block:: console
430 # reserve 2 x 1G blocks of contiguous memory using contigmem driver
431 hw.contigmem.num_buffers=2
432 hw.contigmem.buffer_size=1073741824
433 # load contigmem module during boot process
436 The above lines load the contigmem kernel module during boot process and
437 allocate 2 x 1G blocks of contiguous memory to be used for DPDK later on.
438 This is to avoid issues with potential memory fragmentation during later
439 system up time, which may result in failure of allocating the contiguous
440 memory required for the contigmem kernel module.
442 #. Restart the system and ensure the contigmem module is loaded successfully:
444 .. code-block:: console
447 kldstat | grep "contigmem"
451 .. code-block:: console
453 2 1 0xffffffff817f1000 3118 contigmem.ko
455 #. Repeat step 1 to ensure that you are in the DPDK source directory.
457 #. Load the cxgbe kernel module:
459 .. code-block:: console
463 #. Get the PCI bus addresses of the interfaces bound to t5nex driver:
465 .. code-block:: console
467 pciconf -l | grep "t5nex"
471 .. code-block:: console
473 t5nex0@pci0:2:0:4: class=0x020000 card=0x00001425 chip=0x54011425 rev=0x00
475 In the above example, the t5nex0 is bound to 2:0:4 bus address.
479 Both the interfaces of a Chelsio T5 2-port adapter are bound to the
480 same PCI bus address.
482 #. Unload the kernel module:
484 .. code-block:: console
488 #. Set the PCI bus addresses to hw.nic_uio.bdfs kernel environment parameter:
490 .. code-block:: console
492 kenv hw.nic_uio.bdfs="2:0:4"
494 This automatically binds 2:0:4 to nic_uio kernel driver when it is loaded in
499 Currently, CXGBE PMD only supports the binding of PF4 for Chelsio T5 NICs.
501 #. Load nic_uio kernel driver:
503 .. code-block:: console
505 kldload ./x86_64-native-bsdapp-clang/kmod/nic_uio.ko
507 #. Start testpmd with basic parameters:
509 .. code-block:: console
511 ./x86_64-native-bsdapp-clang/app/testpmd -c 0xf -n 4 -w 0000:02:00.4 -- -i
515 .. code-block:: console
518 EAL: PCI device 0000:02:00.4 on NUMA socket 0
519 EAL: probe driver: 1425:5401 rte_cxgbe_pmd
520 EAL: PCI memory mapped at 0x8007ec000
521 EAL: PCI memory mapped at 0x842800000
522 EAL: PCI memory mapped at 0x80086c000
523 PMD: rte_cxgbe_pmd: fw: 1.13.32.0, TP: 0.1.4.8
524 PMD: rte_cxgbe_pmd: Coming up as MASTER: Initializing adapter
525 Interactive-mode selected
526 Configuring Port 0 (socket 0)
527 Port 0: 00:07:43:2D:EA:C0
528 Configuring Port 1 (socket 0)
529 Port 1: 00:07:43:2D:EA:C8
530 Checking link statuses...
531 PMD: rte_cxgbe_pmd: Port0: passive DA port module inserted
532 PMD: rte_cxgbe_pmd: Port1: passive DA port module inserted
533 Port 0 Link Up - speed 10000 Mbps - full-duplex
534 Port 1 Link Up - speed 10000 Mbps - full-duplex
540 Flow control pause TX/RX is disabled by default and can be enabled via
541 testpmd. Refer section :ref:`flow-control` for more details.
543 Sample Application Notes
544 ------------------------
548 Enable/Disable Flow Control
549 ~~~~~~~~~~~~~~~~~~~~~~~~~~~
551 Flow control pause TX/RX is disabled by default and can be enabled via
554 .. code-block:: console
556 testpmd> set flow_ctrl rx on tx on 0 0 0 0 mac_ctrl_frame_fwd off autoneg on 0
557 testpmd> set flow_ctrl rx on tx on 0 0 0 0 mac_ctrl_frame_fwd off autoneg on 1
559 To disable again, run:
561 .. code-block:: console
563 testpmd> set flow_ctrl rx off tx off 0 0 0 0 mac_ctrl_frame_fwd off autoneg off 0
564 testpmd> set flow_ctrl rx off tx off 0 0 0 0 mac_ctrl_frame_fwd off autoneg off 1