https://bugzilla.kernel.org/show_bug.cgi?id=102741 Bug ID: 102741 Summary: pata_hpt370x driver doesn't want to operate with Adaptec 1200A at UDMA/100 Product: IO/Storage Version: 2.5 Kernel Version: 3.18.0-9 Hardware: i386 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: IDE Assignee: io_ide@xxxxxxxxxxxxxxxxxxxx Reporter: andi3@xxxxxxx Regression: No This is an older machine. But hey, it is Linux, so we can expect a good support instead of the common words from big players "replace your system with a more modern one, as it's unsupported" It's a bog-standard 1200 A "RAID" card by Adaptec. Even though I am not using RAID at the moment, it may also operate as an add-in card for hard drives. To minimize the mess, I have only ONE drive connected to the card right now. The card is properly initialized using the pata_hpt370x kernel driver. However, it will always show as UDMA/66 which simply cannot be. Of course, I've even tried brand-new cables with it, but I think it has nothing to so with that. The drive connected to it is a Samsung SpinPoint T133 (HD 400 LD), which *definitly* can do UDMA/100. The hardware is capable of doing so, too: # lspci -knn |grep HPT 01:09.0 Mass storage controller [0180]: HighPoint Technologies, Inc. HPT366/368/370/370A/372/372N [1103:0004] (rev 03) Subsystem: HighPoint Technologies, Inc. HPT370 UDMA100 [1103:0005] # modinfo pata_hpt37x filename: /lib/modules/3.18.0-9-generic/kernel/drivers/ata/pata_hpt37x.ko version: 0.6.23 license: GPL description: low-level driver for the Highpoint HPT37x/30x author: Alan Cox srcversion: 9767DBC95C3C8CD9B426A96 alias: pci:v00001103d00000006sv*sd*bc*sc*i* alias: pci:v00001103d00000008sv*sd*bc*sc*i* alias: pci:v00001103d00000005sv*sd*bc*sc*i* alias: pci:v00001103d00000007sv*sd*bc*sc*i* alias: pci:v00001103d00000004sv*sd*bc*sc*i* depends: intree: Y vermagic: 3.18.0-9-generic SMP mod_unload modversions 686 signer: Magrathea: Glacier signing key sig_key: 64:24:93:B2:42:A8:8A:D6:3A:5D:EE:4A:7A:65:66:84:4C:ED:13:23 sig_hashalgo: sha512 Now let's take a look at the dmesg from kernel: [ 1.992359] pata_hpt37x: HPT370 using 33MHz bus clock [ 2.015478] scsi host10: pata_hpt37x [ 2.023431] scsi host11: pata_hpt37x [ 2.023610] ata11: PATA max UDMA/66 cmd 0x8c00 ctl 0x9000 bmdma 0x9c00 irq 19 [ 2.023614] ata12: PATA max UDMA/66 cmd 0x9400 ctl 0x9800 bmdma 0x9c08 irq 19 ('ata12' is the Samsung drive; 'ata11' is currently empty.) This can't be correct. Why only at such low speed, i. e. UDMA/66? -- You are receiving this mail because: You are watching the assignee of the bug. -- 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
