From owner-cvs-src-old@FreeBSD.ORG Tue Feb 8 12:49:28 2011 Return-Path: Delivered-To: cvs-src-old@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6744E106564A for ; Tue, 8 Feb 2011 12:49:28 +0000 (UTC) (envelope-from adrian@FreeBSD.org) Received: from repoman.freebsd.org (repoman.freebsd.org [IPv6:2001:4f8:fff6::29]) by mx1.freebsd.org (Postfix) with ESMTP id 393DD8FC17 for ; Tue, 8 Feb 2011 12:49:28 +0000 (UTC) Received: from repoman.freebsd.org (localhost [127.0.0.1]) by repoman.freebsd.org (8.14.4/8.14.4) with ESMTP id p18CnSmY092627 for ; Tue, 8 Feb 2011 12:49:28 GMT (envelope-from adrian@repoman.freebsd.org) Received: (from svn2cvs@localhost) by repoman.freebsd.org (8.14.4/8.14.4/Submit) id p18CnSJY092626 for cvs-src-old@freebsd.org; Tue, 8 Feb 2011 12:49:28 GMT (envelope-from adrian@repoman.freebsd.org) Message-Id: <201102081249.p18CnSJY092626@repoman.freebsd.org> X-Authentication-Warning: repoman.freebsd.org: svn2cvs set sender to adrian@repoman.freebsd.org using -f From: Adrian Chadd Date: Tue, 8 Feb 2011 12:49:01 +0000 (UTC) To: cvs-src-old@freebsd.org X-FreeBSD-CVS-Branch: HEAD Subject: cvs commit: src/sys/dev/ath/ath_hal ah_internal.h src/sys/dev/ath/ath_hal/ar5210 ar5210_attach.c src/sys/dev/ath/ath_hal/ar5211 ar5211_attach.c src/sys/dev/ath/ath_hal/ar5212 ar5212_attach.c src/sys/dev/ath/ath_hal/ar9002 ar9280_attach.c ar9285_attach.c X-BeenThere: cvs-src-old@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: **OBSOLETE** CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Feb 2011 12:49:28 -0000 adrian 2011-02-08 12:49:01 UTC FreeBSD src repository Modified files: sys/dev/ath/ath_hal ah_internal.h sys/dev/ath/ath_hal/ar5210 ar5210_attach.c sys/dev/ath/ath_hal/ar5211 ar5211_attach.c sys/dev/ath/ath_hal/ar5212 ar5212_attach.c sys/dev/ath/ath_hal/ar9002 ar9280_attach.c ar9285_attach.c Log: SVN rev 218436 on 2011-02-08 12:49:01Z by adrian There's apparently a bug with Merlin (AR9280) and later chipsets where putting descriptors (not buffers) across a 4k page boundary can cause issues. I've not seen it in production myself but it apparently can cause problems. So, in preparation for addressing this workaround, (re)-expose the particular HAL capability bit which marks whether the chipset has support for cross-4k- boundary transactions or not. A subsequent commit will modify the descriptor allocation to avoid allocating descriptor entries that straddle a 4k page boundary. Revision Changes Path 1.22 +2 -1 src/sys/dev/ath/ath_hal/ah_internal.h 1.11 +2 -0 src/sys/dev/ath/ath_hal/ar5210/ar5210_attach.c 1.11 +2 -0 src/sys/dev/ath/ath_hal/ar5211/ar5211_attach.c 1.14 +2 -0 src/sys/dev/ath/ath_hal/ar5212/ar5212_attach.c 1.7 +0 -2 src/sys/dev/ath/ath_hal/ar9002/ar9280_attach.c 1.7 +0 -2 src/sys/dev/ath/ath_hal/ar9002/ar9285_attach.c