On Mon, 2013-07-01 at 16:09 +0200, Hajo Möller wrote: > Hi, > > I've got a box which recently got a Marvell 88SE9485 PCIe card > (Supermicro AOC-SAS2LP-MV8), which is connected by a mSAS->4x SATA-cable > to some 5 HDD backplanes (CFI-B53PM, chip is a SiI 3726). > > The HBA's BIOS can see and access the HDDs through the backplanes, which > various Linux distributions could not. > I tried Ubuntu 12.04.2, Ubuntu 13.04, Debian 7.0 and a current Arch Linux. > All logs in this mail are from a fresh Ubuntu 12.04.2 install. > > lspci shows the controller as: > 01:00.0 RAID bus controller: Marvell Technology Group Ltd. Device 9485 > (rev 03) > > lshw does not show the attached disks, nor are there device nodes in > /dev/ for those disks. > > Unplugging a disk results in this (/var/log/kern.log): > kernel: [ 276.995910] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_sas.c > 2062:phy 4 ctrl sts=0x00000000. > kernel: [ 276.995914] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_sas.c > 2064:phy 4 irq sts = 0x01201001 > kernel: [ 278.950547] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_sas.c > 2062:phy 4 ctrl sts=0x00111000. > kernel: [ 278.950551] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_sas.c > 2064:phy 4 irq sts = 0x00000081 > kernel: [ 279.502757] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_94xx.c > 838:get all reg link rate is 0x111000 > kernel: [ 279.502760] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_94xx.c > 843:get link rate is 9 > kernel: [ 279.582118] mvsas 0000:01:00.0: Phy0 : No sig fis > kernel: [ 279.582121] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_sas.c > 2006:phy0 Attached Device > kernel: [ 283.953502] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_sas.c > 2048:Get signature time out, reset phy 4 > kernel: [ 283.953517] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_sas.c > 2062:phy 4 ctrl sts=0x00000000. > kernel: [ 283.953519] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_sas.c > 2064:phy 4 irq sts = 0x00001001 > kernel: [ 284.449485] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_sas.c > 2062:phy 4 ctrl sts=0x00111000. > kernel: [ 284.449488] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_sas.c > 2064:phy 4 irq sts = 0x00000081 > kernel: [ 286.445635] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_94xx.c > 838:get all reg link rate is 0x111000 > kernel: [ 286.445638] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_94xx.c > 843:get link rate is 9 > kernel: [ 286.524997] mvsas 0000:01:00.0: Phy0 : No sig fis > kernel: [ 286.525000] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_sas.c > 2006:phy0 Attached Device > > Replugging the disk: > kernel: [ 310.738784] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_sas.c > 2062:phy 4 ctrl sts=0x00111000. > kernel: [ 310.738788] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_sas.c > 2064:phy 4 irq sts = 0x00010000 > kernel: [ 310.738791] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_sas.c > 2113:notify plug in on phy[0] > kernel: [ 310.758632] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_94xx.c > 838:get all reg link rate is 0x111000 > kernel: [ 310.758634] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_94xx.c > 843:get link rate is 9 > kernel: [ 310.877669] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_sas.c > 1175:phy 4 attach dev info is 20001 > kernel: [ 310.877671] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_sas.c > 1177:phy 4 attach sas addr is 4 > kernel: [ 310.877678] > /build/buildd/linux-lts-quantal-3.5.0/drivers/scsi/mvsas/mv_sas.c > 277:phy 4 byte dmaded. > kernel: [ 310.877689] sas: sas_form_port: phy0 belongs to port0 already(1)! > > According to Marvell's product brief the controller has "Built-in > support for SATA Port Multipliers with FIS-based switching", which its > BIOS seems to confirm. > > The PMPs used to work when connected via a Syba SY-PEX40008 (SiI3124) > controller, which has bugs on its own when more than three drives per > PMP are concurrently active. > > Any help is greatly appreciated,
mv_sas is a libsas based driver. libsas doesn't have any support for SATA PMPs. When it was added they were left as a todo item but then in the field everyone deployed enterprise type SATA devices in SAS expander chassis, so PMP support just got forgotten. James -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
