Hello, This is the resent mail, because original one was deny by vger.kernel.org. We got some problem while evaluation port multipiler with libata, we had tested with two sata chip, one is sil-3132, the another is Marvell 6121. And we also have two port multiplie: Marvell 4140 and Sil-3726. Our kernel version is kernel-2.6.24 with Marvell 5281 platform. Testing result: Sil 3132 with 3726 and 4140: everything looks like fine. Marvell 6121 with 3726 and 4140(using ahci.c): both port multipiler would got problem. It can't be detected whether hotplug or at boot time. But the disk detection is fine without port multiplier. Because we can't upgrade kernel to latest version so quickly, is there any hint or solution for us ? Thanks a lot. Here is the boot message: The boot message of 6121 and 4140: ----------------------------------------------- Driver 'sd' needs updating - please use bus_type methods ahci 0000:00:01.0: controller can't do NCQ, turning off CAP_NCQ ahci 0000:00:01.0: MV_AHCI HACK: port_map 7 -> 3 ahci 0000:00:01.0: nr_ports (3) and implemented port map (0x3) don't match, using nr_ports ahci 0000:00:01.0: forcing PORTS_IMPL to 0x7 ahci 0000:00:01.0: AHCI 0001.0000 32 slots 3 ports 3 Gbps 0x7 impl IDE mode ahci 0000:00:01.0: flags: 64bit stag led pmp slum part scsi0 : ahci scsi1 : ahci scsi2 : ahci ata1: SATA max UDMA/133 abar m1024@0xe0000000 port 0xe0000100 irq 11 ata2: SATA max UDMA/133 abar m1024@0xe0000000 port 0xe0000180 irq 11 ata3: SATA max UDMA/133 abar m1024@0xe0000000 port 0xe0000200 irq 11 ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata1.00: ATA-7: Hitachi HDT725050VLA360, V56OA7EA, max UDMA/133 ata1.00: 976773168 sectors, multi 0: LBA48 NCQ (depth 0/32) ata1.00: configured for UDMA/133 ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.15: qc timeout (cmd 0xe4) ata2.15: failed to read PMP GSCR[0] (Emask=0x4) ata2: failed to recover some devices, retrying in 2 secs ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.15: qc timeout (cmd 0xe4) ata2.15: failed to read PMP GSCR[0] (Emask=0x4) ata2: failed to recover some devices, retrying in 2 secs ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.15: qc timeout (cmd 0xe4) ata2.15: failed to read PMP GSCR[0] (Emask=0x4) ata2: failed to recover some devices, retrying in 2 secs ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata3: SATA link down (SStatus 0 SControl 0) scsi 0:0:0:0: Direct-Access ATA Hitachi HDT72505 V56O PQ: 0 ANSI: 5 sd 0:0:0:0: [sda] 976773168 512-byte hardware sectors (500108 MB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 0:0:0:0: [sda] 976773168 512-byte hardware sectors (500108 MB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sda: sda1 sda2 sda3 sd 0:0:0:0: [sda] Attached SCSI disk physmap platform flash device: 00400000 at ffc00000 The boot message of 6121 and 3726: ----------------------------------------------- Driver 'sd' needs updating - please use bus_type methods ahci 0000:00:01.0: controller can't do NCQ, turning off CAP_NCQ ahci 0000:00:01.0: MV_AHCI HACK: port_map 7 -> 3 ahci 0000:00:01.0: nr_ports (3) and implemented port map (0x3) don't match, using nr_ports ahci 0000:00:01.0: forcing PORTS_IMPL to 0x7 ahci 0000:00:01.0: AHCI 0001.0000 32 slots 3 ports 3 Gbps 0x7 impl IDE mode ahci 0000:00:01.0: flags: 64bit stag led pmp slum part scsi0 : ahci scsi1 : ahci scsi2 : ahci ata1: SATA max UDMA/133 abar m1024@0xe0000000 port 0xe0000100 irq 11 ata2: SATA max UDMA/133 abar m1024@0xe0000000 port 0xe0000180 irq 11 ata3: SATA max UDMA/133 abar m1024@0xe0000000 port 0xe0000200 irq 11 Delay 10 seconds to wait for disk 1 ready. ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata1.00: ATA-7: Hitachi HDT725050VLA360, V56OA7EA, max UDMA/133 ata1.00: 976773168 sectors, multi 0: LBA48 NCQ (depth 0/32) ata1.00: configured for UDMA/133 Delay 10 seconds to wait for disk 2 ready. ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.15: qc time(cmd 0xe4) ata2.15: failed to read PMP GSCR[0] (Emask=0x4) ata2: failed to recover some devices, retrying in 2 secs ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.15: qc timeout (cmd 0xe4) ata2.15: failed to read PMP GSCR[0] (Emask=0x4) ata2: failed to recover some devices, retrying in 2 secs ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.15: qc timeout (cmd 0xe4) ata2.15: failed to read PMP GSCR[0] (Emask=0x4) ata2: failed to recover some devices, retrying in 2 secs ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata3: SATA link down (SStatus 0 SControl 0) scsi 0:0:0:0: Direct-Access ATA Hitachi HDT72505 V56O PQ: 0 ANSI: 5 sd 0:0:0:0: [sda] 976773168 512-byte hardware sectors (500108 MB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 0:0:0:0: [sda] 976773168 512-byte hardware sectors (500108 MB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sda: sda1 sda2 sda3 sd 0:0:0:0: [sda] Attached SCSI disk physmap platform flash device: 00400000 at ffc00000 --- Thanks, KueiHuan-Chen -- 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
