From owner-freebsd-hackers@freebsd.org Sat Mar 25 00:38:32 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 6F53DD1B90C for ; Sat, 25 Mar 2017 00:38:32 +0000 (UTC) (envelope-from crb@chrisbowman.com) Received: from mail-pg0-x234.google.com (mail-pg0-x234.google.com [IPv6:2607:f8b0:400e:c05::234]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 2AA6CA2A for ; Sat, 25 Mar 2017 00:38:32 +0000 (UTC) (envelope-from crb@chrisbowman.com) Received: by mail-pg0-x234.google.com with SMTP id w20so2692119pgc.0 for ; Fri, 24 Mar 2017 17:38:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chrisbowman-com.20150623.gappssmtp.com; s=20150623; h=from:mime-version:subject:message-id:date:to; bh=6XIlb2lBMuVPp/Z3hJRpaM4DZ+pujceVy2xtlfpYdxc=; b=Qv2AtdZaCjCFMdsZB8dXX3M8238vCvt7b0e4YdcItpX8afgPfd4EBF5TJaDJ/v1+TW mRy+nGE/s/Ebvu/WZGKvFd57XupNGag/ywM8SA5WM4NVAICrCotepFHVC9pk+olZ5oZQ HZ3z9879rkmI2Of6NvjYebCf+8Td2spKIk2k+TmsuzrlZyxaM9cM+qALz2cD7mWqrbaw dA+VUh+h4G8WnuG6jh7hpFz6DNUNA5dlKl/AEodmO54VrX4DzT22Nj7zK0E6RNwlg2ug 13cKSebrLdWv+AfzJ3AEHkV3FwXEWwM23ZFsQpjn4whqieMqVK+05dEjkDDKjfAt7kKu o0DQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:mime-version:subject:message-id:date:to; bh=6XIlb2lBMuVPp/Z3hJRpaM4DZ+pujceVy2xtlfpYdxc=; b=a1zDa3GtH4OrseOXPj3vebJvvcm+TBp2srJzSMOd+ZX/3G401vbHr+mOgElbadnPhM rqSkdH4xtJbYC+Wq+RatkNRrCyHbmNm3ugE/J20OXGzpgcZr0XqgKymzTqtpOKhyHE7S QlIapyWEdyo/2ky7+5Q0IVxEfPBu+y1vJOTIhPHKvLFJaDX0wa9MXo+2SEH66ZtE7hbO kwnUxgBCPRPhHEfx8L4Q81CPJYbf0oQiVZ8Ned6cb97ZTIZgwaBScZpMaRgYt+oMS75l ygFdONVqe6unJdZexxWwATKyZ2FKAH+dcBvWiBxbpdvQ/DwhHD9uzawcGtbqw/u18FC8 +tpQ== X-Gm-Message-State: AFeK/H2kXkWD04GKZgc2FPicJvP5o6uK+1Hz7AMCsTXL80QZLcY7rK3a534QGkLW7PGMIQ== X-Received: by 10.99.155.17 with SMTP id r17mr11958942pgd.193.1490402311423; Fri, 24 Mar 2017 17:38:31 -0700 (PDT) Received: from ?IPv6:2601:647:4e00:bbb5:84f2:e7a1:fa51:c741? ([2601:647:4e00:bbb5:84f2:e7a1:fa51:c741]) by smtp.gmail.com with ESMTPSA id d4sm6745654pfb.104.2017.03.24.17.38.30 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 24 Mar 2017 17:38:30 -0700 (PDT) From: Christopher Bowman Mime-Version: 1.0 (Mac OS X Mail 10.2 \(3259\)) Subject: large PCIe BARs Message-Id: <21FF81F3-D290-4682-AB88-5769C52499C3@chrisbowman.com> Date: Fri, 24 Mar 2017 17:38:29 -0700 To: freebsd-hackers@freebsd.org X-Mailer: Apple Mail (2.3259) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.23 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: Sat, 25 Mar 2017 00:38:32 -0000 I have an FPGA PCIe device and driver I designing. I think my driver is = trying to map the PCIe address space for one of the BARs and it=E2=80=99s = failing. My guess is that it=E2=80=99s failing due to the size. The = board has 2G of onboard memory that I=E2=80=99d like to present as one = large BAR. Does FreeBSD (11.0 release) allow for mapping PCIe resources = that larger? If not is there a limit? If so any one have any comments? Thanks, Christopher=20 sp6050: probing for SP605 sp6050: at device 0.0 on pci3 sp6050: attach of SP605 sp6050: 0x40000000 bytes of rid 0x10 res 3 failed (0, = 0xffffffffffffffff). sp6050: Could not map memory device_attach: sp6050 attach returned 6