Date: Wed, 21 Jan 2009 17:16:03 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-6@freebsd.org Subject: svn commit: r187541 - in stable/6/sys: . dev/mfi Message-ID: <200901211716.n0LHG3RG084390@svn.freebsd.org>
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Author: jhb Date: Wed Jan 21 17:16:03 2009 New Revision: 187541 URL: http://svn.freebsd.org/changeset/base/187541 Log: MFC: Fix the maximum transfer size for mfi(4) disk devices to not exceed the maximum number of scatter/gather elements supported in the bus dma tag. Modified: stable/6/sys/ (props changed) stable/6/sys/dev/mfi/mfi_disk.c Modified: stable/6/sys/dev/mfi/mfi_disk.c ============================================================================== --- stable/6/sys/dev/mfi/mfi_disk.c Wed Jan 21 17:13:31 2009 (r187540) +++ stable/6/sys/dev/mfi/mfi_disk.c Wed Jan 21 17:16:03 2009 (r187541) @@ -136,7 +136,8 @@ mfi_disk_attach(device_t dev) sc->ld_disk = disk_alloc(); sc->ld_disk->d_drv1 = sc; - sc->ld_disk->d_maxsize = sc->ld_controller->mfi_max_io * secsize; + sc->ld_disk->d_maxsize = min(sc->ld_controller->mfi_max_io * secsize, + (sc->ld_controller->mfi_max_sge - 1) * PAGE_SIZE); sc->ld_disk->d_name = "mfid"; sc->ld_disk->d_open = mfi_disk_open; sc->ld_disk->d_close = mfi_disk_close;
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