Quoting Eunice Chen <Eunice.Chen@xxxxxxxxxxxxxxxx>: > 3512/3112/3114 controllers do not support PMP. 3124/3132 controllers do. Um... Well, that's bad. Can you update datasheet then? http://www.siliconimage.com/docs/SiI-DS-0102-D.pdf says on page 77: === Serial ATA SControl Address Offset: 0x100 (Channel 0) / 0x180 (Channel 1) Access Type: Read/Write Reset Value: 0x0000_0010 ... This register is the SControl register as defined by the Serial ATA specification. • Bit [19:16]: PMP - This field is the 4-bit value to be placed in the Port Multiplier Port field of all transmitted FISes. === and there is also pm_fiscfg bitfield in SMisc :-( Provoking false hopes from unsuspecting readers :-( I'll shell out some money then... Thanks, Petr > Eunice > > -----Original Message----- > From: linux-ide-owner@xxxxxxxxxxxxxxx > [mailto:linux-ide-owner@xxxxxxxxxxxxxxx] On Behalf Of Petr Vandrovec > Sent: Wednesday, August 15, 2007 5:47 AM > To: linux-ide@xxxxxxxxxxxxxxx > Subject: sata_sil, sil3512, and PMP? > > Hello, > is anybody working on PMP support in sata_sil driver, or should I > give it a try, or is it simpler to just shell out $70 to get 3124 based > device with FIS based switching? > > According to datasheet it seems that 3512 should be able to do command > based switching without (too big) problems. Though I'm not very > confident as whole PMP support fits into two sentences in 3512 public > datasheet :-( > Thanks, > Petr Vandrovec > > - > 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 > > - 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
