Re: CVS commit: src/share/man/man4

[maya%NetBSD.org@localhost]

On Fri, Apr 10, 2020 at 07:16:24AM -0700, Jason Thorpe wrote:
> 
> > On Apr 10, 2020, at 4:44 AM, maya%netbsd.org@localhost <maya%NetBSD.org@localhost> wrote:
> > 
> > I had to stop using m_defrag because implementation details broke
> > bwfm@pci. It can only handle a chain of length 1, and m_defrag gives
> > a minimum of 2.
> 
> Exactly.  If it can compact the packet into a single cluster mbuf, it should do so.  It makes it slightly more difficult to use correctly, but those would be better semantics.
> 
> -- thorpej
> 

At the time people brought up freebsd m_collapse or pre-allocating and
using m_copydata. I haven't tried either, and bwfm@pci stopped working
entirely for me anyway.