On Sun, 2017-10-08 at 00:12 -0400, Andrew Ryder wrote: > Hello, > > Does the mvsas support port multiplier for the marvell 88SE9480 chip? Not at the present time. The code to handle SATA port multipliers is stubbed out in libsas/sas_ata.c The reason is fairly simple: usually if you're connecting drives via a SAS host adapter, you want to use SAS expanders because they're way more featureful and performant than SATA port multipliers, so there's not much customer pull for support. > I purchased an Addonics http://addonics.com/products/ad2ms6gpx8-e.php > but the card fails to see any of the attached drives. > > I found an old message saying it might support sata pmp? > https://lkml.org/lkml/2014/4/24/413 This patch set was never merged. There were significant problems with the EH portion, which Dan Williams reviewed and sent a load of feedback for but no future patch set incorporating the modifications was ever forthcoming. James > I've attached a dmesg output also and I'm running kernel 4.9.36 if > that > helps. > > Andrew -- 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