Date: Fri, 15 Apr 2016 05:10:31 +0000 (UTC) From: Warner Losh <imp@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r298035 - head/sys/cam/ata Message-ID: <201604150510.u3F5AVVX083724@repo.freebsd.org>
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Author: imp Date: Fri Apr 15 05:10:31 2016 New Revision: 298035 URL: https://svnweb.freebsd.org/changeset/base/298035 Log: Out of an abundance of caution treat * Samsung 843T Series SSDs (MZ7WD*) * Samsung PM851 Series SSDs (MZ7TE*) * Samsung PM853T Series SSDs (MZ7GE*) as known having broken NCQ TRIM support as they appear to be based on the same controller technology as the 840 and 850 series. I've had at least one report of the PM853 being broken, so err on the side of caution for the above drives. The PM863/SM863 appears to be based on a newer controller, so give it the benefit of the doubt. Modified: head/sys/cam/ata/ata_da.c Modified: head/sys/cam/ata/ata_da.c ============================================================================== --- head/sys/cam/ata/ata_da.c Fri Apr 15 04:45:37 2016 (r298034) +++ head/sys/cam/ata/ata_da.c Fri Apr 15 05:10:31 2016 (r298035) @@ -569,14 +569,22 @@ static struct ada_quirk_entry ada_quirk_ }, { /* + * Samsung SM863 Series SSDs (MZ7KM*) + * 4k optimised, NCQ believed to be working + */ + { T_DIRECT, SIP_MEDIA_FIXED, "*", "SAMSUNG MZ7KM*", "*" }, + /*quirks*/ADA_Q_4K + }, + { + /* * Samsung 843T Series SSDs (MZ7WD*) * Samsung PM851 Series SSDs (MZ7TE*) * Samsung PM853T Series SSDs (MZ7GE*) - * Samsung SM863 Series SSDs (MZ7KM*) - * 4k optimised, NCQ Trim believed working + * 4k optimised, NCQ believed to be broken since these are + * appear to be built with the same controllers as the 840/850. */ { T_DIRECT, SIP_MEDIA_FIXED, "*", "SAMSUNG MZ7*", "*" }, - /*quirks*/ADA_Q_4K + /*quirks*/ADA_Q_4K | ADA_Q_NCQ_TRIM_BROKEN }, { /*
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