netdev - Re: TCP performance problems - GSO/TSO, MSS, 8139cp related

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Message-Id: <20161111.215216.158904316779820587.davem@davemloft.net>
Date:   Fri, 11 Nov 2016 21:52:16 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     linux@...linux.org.uk
Cc:     dwmw2@...radead.org, netdev@...r.kernel.org, qemu-devel@...gnu.org
Subject: Re: TCP performance problems - GSO/TSO, MSS, 8139cp related

From: Russell King - ARM Linux <linux@...linux.org.uk>
Date: Fri, 11 Nov 2016 22:33:08 +0000

> "The new buffer management algorithm provides capabilities of Microsoft
> Large-Send offload" and as yet I haven't found anything that describes
> what this is or how it works.

For once I will give Microsoft a big shout out here.

This, and everything a Microsoft networking driver interfaces to, is
_very_ much documented in extreme detail in the Microsoft NDIS
(Network Driver Interface Specification).

Microsoft's networking driver interfaces and expectations are
documented 1,000 times better than that of Linux.