Date: Mon, 21 Dec 2009 00:59:09 +0900 From: Norikatsu Shigemura <nork@FreeBSD.org> To: Alexander Motin <mav@freebsd.org> Cc: FreeBSD-Current <freebsd-current@freebsd.org>, Norikatsu Shigemura <nork@FreeBSD.org>, Ivan Voras <ivoras@freebsd.org> Subject: Re: How do I use NCQ of Intel X25-E(SSD) on ahci(4)? Message-ID: <20091221005909.c719571a.nork@FreeBSD.org> In-Reply-To: <4B262119.6090904@FreeBSD.org> References: <1258575782.00184876.1258562404@10.7.7.3> <mailpost.1258563606.7337474.35089.mailing.freebsd.current@FreeBSD.cs.nctu.edu.tw> <1258579386.00184908.1258567802@10.7.7.3> <1258590193.00184983.1258579804@10.7.7.3> <4B262119.6090904@FreeBSD.org>
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Hi mav! On Mon, 14 Dec 2009 13:27:21 +0200 Alexander Motin <mav@freebsd.org> wrote: > >> while scheduling requests. I didn't do it yet, just because most of > >> devices able to handle all 32 tags possible on SATA. This Intel SSD is > >> one of rare exceptions. > > Ok, (still thinking about something that could be MFC-able in an > > emergency), how about adding a loader tunable integer instead of "32"? > Just for note, it is already fixed and merged. Thank you! Yes, I confirmed! - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ada0 at ahcich0 bus 0 scbus0 target 0 lun 0 ada0: <SSDSA2SH064G1GC INTEL 045C8790> ATA-7 SATA 2.x device ada0: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO size 8192bytes) ada0: Command Queueing enabled ada0: 61057MB (125045424 512 byte sectors: 16H 63S/T 16383C) ada1 at ahcich1 bus 0 scbus1 target 0 lun 0 ada1: <WDC WD10EADS-00L5B1 01.01A01> ATA-8 SATA 2.x device ada1: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO size 8192bytes) ada1: Command Queueing enabled ada1: 953869MB (1953525168 512 byte sectors: 16H 63S/T 16383C) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - # camcontrol tags ada0 (pass0:ahcich0:0:0:0): device openings: 31 # camcontrol tags ada1 (pass1:ahcich1:0:0:0): device openings: 32 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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