.. SPDX-License-Identifier: BSD-3-Clause
Copyright (c) 2015 QLogic Corporation
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-
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- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
BNX2X Poll Mode Driver
======================
-The BNX2X poll mode driver library (**librte_pmd_bnx2x**) implements support
+The BNX2X poll mode driver library (**librte_net_bnx2x**) implements support
for **QLogic 578xx** 10/20 Gbps family of adapters as well as their virtual
functions (VF) in SR-IOV context. It is supported on several standard Linux
distros like RHEL and SLES. It is compile-tested under FreeBSD OS.
Prerequisites
-------------
-- Requires firmware version **7.2.51.0**. It is included in most of the
+- Requires firmware version **7.13.11.0**. It is included in most of the
standard Linux distros. If it is not available visit
- `linux-firmware git repository <https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/plain/bnx2x/bnx2x-e2-7.2.51.0.fw>`_
+ `linux-firmware git repository <https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/plain/bnx2x/bnx2x-e2-7.13.11.0.fw>`_
to get the required firmware.
Pre-Installation Configuration
------------------------------
-Config File Options
-~~~~~~~~~~~~~~~~~~~
+Config Options
+~~~~~~~~~~~~~~
-The following options can be modified in the ``.config`` file. Please note that
+The following options can be enabled with Meson flags. Please note that
enabling debugging options may affect system performance.
-- ``CONFIG_RTE_LIBRTE_BNX2X_PMD`` (default **n**)
-
- Toggle compilation of bnx2x driver. To use bnx2x PMD set this config parameter
- to 'y'. Also, in order for firmware binary to load user will need zlib devel
- package installed.
-
-- ``CONFIG_RTE_LIBRTE_BNX2X_DEBUG_TX`` (default **n**)
+- ``RTE_LIBRTE_BNX2X_DEBUG_TX`` (default **disabled**)
Toggle display of transmit fast path run-time messages.
-- ``CONFIG_RTE_LIBRTE_BNX2X_DEBUG_RX`` (default **n**)
+- ``RTE_LIBRTE_BNX2X_DEBUG_RX`` (default **disabled**)
Toggle display of receive fast path run-time messages.
-- ``CONFIG_RTE_LIBRTE_BNX2X_DEBUG_PERIODIC`` (default **n**)
+- ``RTE_LIBRTE_BNX2X_DEBUG_PERIODIC`` (default **disabled**)
Toggle display of register reads and writes.
-
.. _bnx2x_driver-compilation:
Driver compilation and testing
Refer to the document :ref:`compiling and testing a PMD for a NIC <pmd_build_and_test>`
for details.
+Jumbo: Limitation
+-----------------
+
+Rx descriptor limit for number of segments per MTU is set to 1.
+PMD doesn't support Jumbo Rx scatter gather. Some applciations can
+adjust mbuf_size based on this param and max_pkt_len.
+
+For others, PMD detects the condition where Rx packet length cannot
+be held by configured mbuf size and logs the message.
+
+Example output:
+
+ .. code-block:: console
+
+ [...]
+ [bnx2x_recv_pkts:397(04:00.0:dpdk-port-0)] mbuf size 2048 is not enough to hold Rx packet length more than 2046
+
SR-IOV: Prerequisites and sample Application Notes
--------------------------------------------------
git.droids-corp.org / dpdk.git / blobdiff