netdev - Why max netlink msg size is limited to 16k

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Message-ID: <CA+VDgmNYc=djp6ab=n49CTpyvof8CPgHvXRst5Vnm706e-nRvQ@mail.gmail.com>
Date:   Sat, 22 Apr 2017 19:43:20 +0530
From:   prashantkumar dhotre <prashantkumardhotre@...il.com>
To:     netdev@...r.kernel.org
Subject: Why max netlink msg size is limited to 16k

I am observing that max netlink msg that my kernel module can send to
user app is close to 16K.

For larger sizes, genlmsg_unicast() succeeds but my app does not receive data.

I have tried increasing RECV buffer size in my user app but that does not help.

Regards