Date: Thu, 26 Jul 2001 23:15:54 -0700 From: Terry Lambert <tlambert2@mindspring.com> To: Bosko Milekic <bmilekic@technokratis.com> Cc: Alfred Perlstein <bright@mu.org>, Zhihui Zhang <zzhang@cs.binghamton.edu>, vishwanath pargaonkar <vishubp@yahoo.com>, freebsd-hackers@FreeBSD.ORG Subject: Re: cluster size Message-ID: <3B61071A.C637EA85@mindspring.com> References: <20010725140737.A25132@technokratis.com> <Pine.SOL.4.21.0107251416550.21505-100000@opal> <20010725143649.A25300@technokratis.com> <3B6050D1.9DCCD23@mindspring.com> <20010726133617.B33517@technokratis.com> <20010726123900.E26571@elvis.mu.org> <3B6058AC.32F6B2EB@mindspring.com> <20010726140437.A33713@technokratis.com>
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Bosko Milekic wrote:
> > > Er, wouldn't that be the only way for cards to refil thier DMA
> > > recieve buffers?
> >
> > Look at the Tigon II and FXP drivers. The allocations in
> > the macros turn into m_get, not m_clusterget.
>
> From if_fxp.c (fxp_add_rfabuf(), sometimes called from fxp_intr()):
>
> MGETHDR(...); <-- get mbuf
> if (m != NULL) {
> MCLGET(...); <-- get cluster
> ...
> }
Yes, I had misread things. Alfred pointed this out to me in
person, earlier. I had been reading the jumbogram code,
which uses a seperate buffer space, and then just incorrectly
assumed.
Thanks for getting thecorrection into the list archives, so
that future readers will be less confused: you spared me
having to do the same.
-- Terry
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