On Tue, Dec 30, 2008 at 5:08 PM, Grant Grundler <grundler@xxxxxxxxxx> wrote: > On Tue, Dec 30, 2008 at 4:24 AM, Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx> 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 . There is. Search the file for "libata.force". But it doesn't support disabling the scan for specific ports; that has yet to be implemented. <https://kerneltrap.org/mailarchive/linux-kernel/2008/8/11/2900064/thread> Alan -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
