From owner-freebsd-hackers@freebsd.org Wed May 10 09:10:29 2017 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 58C96D65822 for ; Wed, 10 May 2017 09:10:29 +0000 (UTC) (envelope-from sebastian.huber@embedded-brains.de) Received: from dedi548.your-server.de (dedi548.your-server.de [85.10.215.148]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 1730FA50 for ; Wed, 10 May 2017 09:10:28 +0000 (UTC) (envelope-from sebastian.huber@embedded-brains.de) Received: from [78.47.166.52] (helo=sslproxy04.your-server.de) by dedi548.your-server.de with esmtpsa (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.85_2) (envelope-from ) id 1d8NKA-0000EB-2o for freebsd-hackers@freebsd.org; Wed, 10 May 2017 10:50:22 +0200 Received: from [82.135.62.35] (helo=mail.embedded-brains.de) by sslproxy04.your-server.de with esmtpsa (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.84_2) (envelope-from ) id 1d8NK9-0007hg-Q4 for freebsd-hackers@freebsd.org; Wed, 10 May 2017 10:50:21 +0200 Received: from localhost (localhost.localhost [127.0.0.1]) by mail.embedded-brains.de (Postfix) with ESMTP id A5D6E2A003F for ; Wed, 10 May 2017 10:50:47 +0200 (CEST) Received: from mail.embedded-brains.de ([127.0.0.1]) by localhost (zimbra.eb.localhost [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id am2haT7fMa0m for ; Wed, 10 May 2017 10:50:43 +0200 (CEST) Received: from localhost (localhost.localhost [127.0.0.1]) by mail.embedded-brains.de (Postfix) with ESMTP id 555182A160A for ; Wed, 10 May 2017 10:50:43 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.eb.localhost Received: from mail.embedded-brains.de ([127.0.0.1]) by localhost (zimbra.eb.localhost [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id qMURH__x9Grd for ; Wed, 10 May 2017 10:50:43 +0200 (CEST) Received: from [192.168.96.129] (unknown [192.168.96.129]) by mail.embedded-brains.de (Postfix) with ESMTPSA id 458AD2A003F for ; Wed, 10 May 2017 10:50:43 +0200 (CEST) To: FreeBSD From: Sebastian Huber Subject: Linux gen_pool allocator replacement? Message-ID: <5912D448.5060201@embedded-brains.de> Date: Wed, 10 May 2017 10:50:16 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Authenticated-Sender: smtp-embedded@poldinet.de X-Virus-Scanned: Clear (ClamAV 0.99.2/23373/Wed May 10 07:07:49 2017) X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 May 2017 09:10:29 -0000 Hello, I try currently to port a BSD licensed Linux network interface driver to=20 FreeBSD. This driver uses the gen_pool allocator http://elixir.free-electrons.com/linux/latest/source/include/linux/genall= oc.h for example here https://github.com/torvalds/linux/blob/master/drivers/soc/fsl/qbman/qman.= c#L2707 Does someone know if something similar exits in the FreeBSD kernel? I=20 cannot use UMA since the pool management data must reside outside the=20 managed memory area. One use case in this driver seems just to manage a=20 range of integers, so no actual memory allocation. For this I could=20 probably use UNR(9), but a general gen_pool allocator replacement would=20 be nice. --=20 Sebastian Huber, embedded brains GmbH Address : Dornierstr. 4, D-82178 Puchheim, Germany Phone : +49 89 189 47 41-16 Fax : +49 89 189 47 41-09 E-Mail : sebastian.huber@embedded-brains.de PGP : Public key available on request. Diese Nachricht ist keine gesch=C3=A4ftliche Mitteilung im Sinne des EHUG= .