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Date: Wed, 31 Dec 2008 16:01:42 -0500 (EST) From: Justin Piszcz <jpiszcz@...idpixels.com> To: Grant Grundler <grundler@...gle.com> cc: linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org Subject: Re: 2.6.28: Is there a way to disable sata probing for certain ports? On Tue, 30 Dec 2008, Grant Grundler wrote: > On Tue, Dec 30, 2008 at 4:24 AM, Justin Piszcz <jpiszcz@...idpixels.com> wrote: >> When I boot from an Intel X25-E SSD, it takes roughly a few seconds; >> however, items such as: >> >> $ dmesg|grep link\ down >> [ 2.447030] ata4: SATA link down (SStatus 0 SControl 300) >> [ 4.481288] ata5: SATA link down (SStatus 0 SControl 0) >> [ 6.501288] ata6: SATA link down (SStatus 0 SControl 0) >> [ 8.522038] ata7: SATA link down (SStatus 0 SControl 0) >> [ 10.552288] ata8: SATA link down (SStatus 0 SControl 0) >> >> Scanning for devices on channels that have nothing connected adds to the >> boot time, is there anyway to turn off/disable scanning for certain ports to >> help speed the boot process? > > Some BIOSs allow one to enable/disable each port individually. > Have you checked the BIOS config menus for such an option? > > drivers/ata/libata-core.c declares "ata_force_param_buf" but I don't > see any documentation for it despite the reference to > Documentation/kernel-parameters.txt . > > hth, > grant > -- > To unsubscribe from this list: send the line "unsubscribe linux-ide" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Disabling the additional controllers helped a bit but for AHCI on a few boards its all or nothing, AHCI enabled/disabled. Justin. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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