> -----Original Message----- > From: Jeff Daly <je...@silicom-usa.com> > Sent: Wednesday, April 27, 2022 10:21 PM > To: Wang, Haiyue <haiyue.w...@intel.com> > Cc: dev@dpdk.org > Subject: [PATCH] doc: describe ixgbe devargs fiber_sdp3_no_tx_disable > > The devargs option for the IXGBE driver is introduced in order to inform the > driver to skip checking SDP3 as an indicator of laser enable/disable for SFP > modules. > > Signed-off-by: Jeff Daly <je...@silicom-usa.com> > --- > doc/guides/nics/ixgbe.rst | 17 +++++++++++++++++ > 1 file changed, 17 insertions(+) > > diff --git a/doc/guides/nics/ixgbe.rst b/doc/guides/nics/ixgbe.rst index > 82fa453fa28e..ad1a3da6101e 100644 > --- a/doc/guides/nics/ixgbe.rst > +++ b/doc/guides/nics/ixgbe.rst > @@ -101,6 +101,23 @@ To guarantee the constraint, capabilities in > dev_conf.rxmode.offloads will be ch > > fdir_conf->mode will also be checked. > > +Disable SDP3 TX_DISABLE for Fiber Links > +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > + > +The following ``devargs`` option can be enabled at runtime. It must be > +passed as part of EAL arguments. For example, > + > +.. code-block:: console > + > + dpdk-testpmd -a fiber_sdp3_no_tx_disable=1 -- -i > + > +- ``fiber_sdp3_no_tx_disable`` (default **0**) > + > + Not all IXGBE implementations with SFP cages use the SDP3 signal as > + TX_DISABLE as a means to disable the laser on fiber SFP modules. > + This option informs the driver that in this case, SDP3 is not to be > + used as a check for link up by testing for laser on/off. > + > VF Runtime Options > ^^^^^^^^^^^^^^^^^^ > > -- > 2.25.1 Please squash the document update into the code path.
