netdev - Ethernet TX buffer crossing 4K boundary?

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Date:   Wed, 20 Apr 2022 21:09:58 +0000
From:   Joakim Tjernlund <Joakim.Tjernlund@...inera.com>
To:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     Eric Gratorp <Eric.Gratorp@...inera.com>
Subject: Ethernet TX buffer crossing 4K boundary?

We have this custom Ethernet controller that cannot DMA a buffer if the buffer crosses 4K boundary.
Any ideas how to deal with that limitation in the driver?

 Joakim