Date: Wed, 25 Apr 2018 16:04:13 -0400 From: Ryan Stone <rysto32@gmail.com> To: Konstantin Belousov <kostikbel@gmail.com> Cc: FreeBSD Current <current@freebsd.org>, menny@mellanox.com, FreeBSD Net <net@freebsd.org> Subject: Re: mlx5(4) jumbo receive Message-ID: <CAFMmRNwKXCxGbz7zmOsiCMWbY3%2BrBzGwJJo_HHkAbbhEz2UfLQ@mail.gmail.com> In-Reply-To: <20180424085553.GA6887@kib.kiev.ua> References: <20180424085553.GA6887@kib.kiev.ua>
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On Tue, Apr 24, 2018 at 4:55 AM, Konstantin Belousov <kostikbel@gmail.com> wrote: > +#ifndef MLX5E_MAX_RX_BYTES > +#define MLX5E_MAX_RX_BYTES MCLBYTES > +#endif Why do you use a 2KB buffer rather than a PAGE_SIZE'd buffer? MJUMPAGESIZE should offer significantly better performance for jumbo frames without increasing the risk of memory fragmentation.
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