From: David Miller <davem@xxxxxxxxxxxxx> Date: Sat, 02 May 2009 15:51:55 -0700 (PDT) > From: "Moore, Eric" <Eric.Moore@xxxxxxx> > Date: Sat, 2 May 2009 16:44:54 -0600 > >> the sas transport layer is assigning the target id's > > Can you show me where that happens and how the MPT fusion > SAS driver exports the SAS topology target IDs to that > layer? Just so you have a concrete example of the problem I am having. The SAS scan shows: [ 69.492431] mptsas_sas_device_pg0() [ 69.497824] mptsas: ioc0: ---- SAS DEVICE PAGE 0 --------- [ 69.497829] mptsas: ioc0: Handle=0x1 [ 69.497832] mptsas: ioc0: Parent Handle=0x0 [ 69.497836] mptsas: ioc0: Enclosure Handle=0x1 [ 69.497840] mptsas: ioc0: Slot=0x0 [ 69.497843] mptsas: ioc0: SAS Address=0x5080020000002999 [ 69.497847] mptsas: ioc0: Target ID=0x3 [ 69.497851] mptsas: ioc0: Bus=0x0 [ 69.497854] mptsas: ioc0: Parent Phy Num=0x0 [ 69.497857] mptsas: ioc0: Access Status=0x0 [ 69.497861] mptsas: ioc0: Device Info=0x1071 [ 69.497865] mptsas: ioc0: Flags=0x1 [ 69.497868] mptsas: ioc0: Physical Port=0x0 [ 69.497870] [ 69.497874] mptsas_sas_device_pg0() [ 69.503148] mptsas: ioc0: ---- SAS DEVICE PAGE 0 --------- [ 69.503153] mptsas: ioc0: Handle=0x5 [ 69.503156] mptsas: ioc0: Parent Handle=0x1 [ 69.503160] mptsas: ioc0: Enclosure Handle=0x1 [ 69.503163] mptsas: ioc0: Slot=0x0 [ 69.503166] mptsas: ioc0: SAS Address=0x1221000000000000 [ 69.503170] mptsas: ioc0: Target ID=0x0 [ 69.503174] mptsas: ioc0: Bus=0x0 [ 69.503177] mptsas: ioc0: Parent Phy Num=0x0 [ 69.503180] mptsas: ioc0: Access Status=0x0 [ 69.503184] mptsas: ioc0: Device Info=0x881 [ 69.503187] mptsas: ioc0: Flags=0x2F3 [ 69.503191] mptsas: ioc0: Physical Port=0x0 Targets 3 and 0, what I expect. Yet the SCSI layer assigns targets 0 and 1 to these devices: [ 69.528237] mptsas_target_alloc: starget->id == 0 [ 69.531525] mptsas_target_alloc: rphy == fffff8127d3bb000 sas_address=0x12210 00000000000 [ 69.538112] mptsas_target_alloc: using phy_info id == 0 [ 69.543938] scsi 0:0:0:0: Direct-Access ATA HITACHI HDS7225S A94A PQ : 0 ANSI: 5 [ 69.552860] sd 0:0:0:0: [sda] 488390625 512-byte hardware sectors: (250 GB/23 2 GiB) [ 69.552950] mptsas_target_alloc: starget->id == 1 [ 69.552955] mptsas_target_alloc: rphy == fffff8127d3ab600 sas_address=0x12210 00003000000 [ 69.552959] mptsas_target_alloc: using phy_info id == 3 [ 69.554458] scsi 0:0:1:0: Direct-Access ATA INTEL SSDSA2MH08 8610 PQ : 0 ANSI: 5 I want to know why this disconnect? Shouldn't the SAS topology provided target IDs be used instead? -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
