- Add note for Co-existence of DPDK and Linux drivers. - Update the firmware version in example. - Add Config note for potential error due to lack of memzone desciptor count.
Signed-off-by: Rasesh Mody <rm...@marvell.com> --- doc/guides/nics/qede.rst | 25 ++++++++++++++++++++----- 1 file changed, 20 insertions(+), 5 deletions(-) diff --git a/doc/guides/nics/qede.rst b/doc/guides/nics/qede.rst index 2f4045795..9c14dd006 100644 --- a/doc/guides/nics/qede.rst +++ b/doc/guides/nics/qede.rst @@ -70,6 +70,10 @@ Co-existence considerations to the PFs of a given adapter and either qede PMD or Linux drivers (qed and qede) can be bound to the VFs of the adapter. +- To use DPDK on some PFs and Linux drivers on other PFs of an adapter, + create a VF each on the PFs where DPDK will be used, attach DPDK to + these VFs and Linux drivers to the other PFs where no VFs are created. + Supported QLogic Adapters ------------------------- @@ -82,9 +86,7 @@ Prerequisites inbox in certain newer Linux distros under the standard directory ``E.g. /lib/firmware/qed/qed_init_values-8.40.33.0.bin``. If the required firmware files are not available then download it from - `linux-firmware git repository <http://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/qed>`_ - or `QLogic Driver Download Center <http://driverdownloads.qlogic.com/QLogicDriverDownloads_UI/DefaultNewSearch.aspx>`_. - To download firmware file from QLogic website, select adapter category, model and DPDK Poll Mode Driver. + `linux-firmware git repository <http://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/qed>`_. - Requires the NIC be updated minimally with **8.30.x.x** Management firmware(MFW) version supported for that NIC. It is highly recommended that the NIC be updated with the latest available management firmware version to get latest feature set. @@ -99,7 +101,6 @@ Prerequisites `QLogic Driver Download Center <http://driverdownloads.qlogic.com/QLogicDriverDownloads_UI/DefaultNewSearch.aspx>`_. For downloading PF driver, select adapter category, model and Linux distro. - Performance note ~~~~~~~~~~~~~~~~ @@ -126,12 +127,26 @@ enabling debugging options may affect system performance. - ``CONFIG_RTE_LIBRTE_QEDE_FW`` (default **""**) Gives absolute path of firmware file. - ``Eg: "/lib/firmware/qed/qed_init_values-8.37.7.0.bin"`` + ``Eg: "/lib/firmware/qed/qed_init_values-8.40.33.0.bin"`` Empty string indicates driver will pick up the firmware file from the default location /lib/firmware/qed. CAUTION this option is more for custom firmware, it is not recommended for use under normal condition. +Config notes +~~~~~~~~~~~~ + +When there are multiple adapters and/or large number of Rx/Tx queues +configured on the adapters, the default (2560) number of memzone +descriptors may not be enough. Please increase the number of memzone +descriptors to a higher number as needed. When sufficient number of +memzone descriptors are not configured, user can potentially run into +following error. + + .. code-block:: console + + EAL: memzone_reserve_aligned_thread_unsafe(): No more room in config + Driver compilation and testing ------------------------------ -- 2.18.0
