Date: Fri, 17 Nov 2017 13:37:52 -0500 From: Ryan Stone <rysto32@gmail.com> To: Sean Bruno <sbruno@freebsd.org> Cc: "src-committers@freebsd.org" <src-committers@freebsd.org>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, "svn-src-head@freebsd.org" <svn-src-head@freebsd.org> Subject: Re: svn commit: r321476 - head/sys/dev/ixgbe Message-ID: <CAFMmRNxE88NiAMT1Kn%2BUX1hnepTvhdh761a1newotR4r7zxfbw@mail.gmail.com> In-Reply-To: <201707251438.v6PEcUAC026283@repo.freebsd.org> References: <201707251438.v6PEcUAC026283@repo.freebsd.org>
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On Tue, Jul 25, 2017 at 10:38 AM, Sean Bruno <sbruno@freebsd.org> wrote: > Author: sbruno > Date: Tue Jul 25 14:38:30 2017 > New Revision: 321476 > URL: https://svnweb.freebsd.org/changeset/base/321476 > > Log: > Drop ixgbe RX lock during TCP_LRO processing. This eliminates a "storm" > of LOR detection and a bit of lock release/acquire collision when using LRO. Without the lock held how do we guarantee that multiple threads can't be processing LRO at the same time?
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