#1 No detect LSI MegaRAID SAS 9265-8i

[Dmitry Pugachev]

Hello. I am using the LSI MegaRAID SAS 9265-8i controller. lspci -v

 03:00.0 RAID bus controller: Broadcom / LSI MegaRAID SAS 2208 [Thunderbolt] (rev 01)
         Subsystem: Broadcom / LSI MegaRAID SAS 9265-8i
         Flags: bus master, fast devsel, latency 0, IRQ 25
         I/O ports at 2000 [disabled] [size=256]
         Memory at 80400000 (64-bit, non-prefetchable) [size=16K]
         Memory at 80440000 (64-bit, non-prefetchable) [size=256K]
         Expansion ROM at 8fc00000 [disabled] [size=128K]
         Capabilities: [50] Power Management version 3
         Capabilities: [68] Express Endpoint, MSI 00
         Capabilities: [d0] Vital Product Data
         Capabilities: [a8] MSI: Enable- Count=1/1 Maskable- 64bit+
         Capabilities: [c0] MSI-X: Enable+ Count=16 Masked-
         Capabilities: [100] Advanced Error Reporting
         Capabilities: [1e0] Secondary PCI Express
         Capabilities: [1c0] Power Budgeting <?>
         Capabilities: [190] Dynamic Power Allocation <?>
         Capabilities: [148] Alternative Routing-ID Interpretation (ARI)
         Kernel driver in use: megaraid_sas

and device:

# ls /dev/ | grep mega
megaraid_sas_ioctl_node

Kernel 6.1 or 6.18. I'm building an mfiutil last tag(1.0.15-rivoreo-r1) or master branch.
But the utility does not see my controller:

# mfiutil show adapter
mfiutil: Failed to get controller information: There is no such device

Why can't the utility see my raid controller?

[WHR]

Hi,

Can you try ls -l /sys/kernel/debug/megaraid_sas/ on your system? If that directory doesn't exist, try ls -l /sys/class/scsi_host/ instead.

It is likely that the SCSI host unit number isn't 0 on your system; please pass the -u <unit> option accordingly. See the 'GET UNIT NUMBER OF CONTROLLERS' section of manual page mfiutil(8) for a detailed explanation.

[Dmitry Pugachev]

# ls -l /sys/class/scsi_host/
итого 0
lrwxrwxrwx 1 root root 0 Aug  7 04:12 host0 -> ../../devices/platform/200000000.pci/pci0000:00/0000:00:00.0/0000:01:03.0/ata1/host0/scsi_host/host0
lrwxrwxrwx 1 root root 0 Aug  7 04:12 host1 -> ../../devices/platform/200000000.pci/pci0000:00/0000:00:00.0/0000:01:03.0/ata2/host1/scsi_host/host1
lrwxrwxrwx 1 root root 0 Aug  7 04:12 host2 -> ../../devices/platform/200000000.pci/pci0000:00/0000:00:00.0/0000:01:03.0/ata3/host2/scsi_host/host2
lrwxrwxrwx 1 root root 0 Aug  7 04:12 host3 -> ../../devices/platform/200000000.pci/pci0000:00/0000:00:00.0/0000:01:03.0/ata4/host3/scsi_host/host3
lrwxrwxrwx 1 root root 0 Aug  7 04:12 host4 -> ../../devices/platform/200000000.pci/pci0000:00/0000:00:00.0/0000:01:03.1/ata5/host4/scsi_host/host4
lrwxrwxrwx 1 root root 0 Aug  7 04:12 host5 -> ../../devices/platform/200000000.pci/pci0000:00/0000:00:00.0/0000:01:03.1/ata6/host5/scsi_host/host5
lrwxrwxrwx 1 root root 0 Aug  7 04:12 host6 -> ../../devices/platform/200000000.pci/pci0000:00/0000:00:00.0/0000:01:03.1/ata7/host6/scsi_host/host6
lrwxrwxrwx 1 root root 0 Aug  7 04:12 host7 -> ../../devices/platform/200000000.pci/pci0000:00/0000:00:00.0/0000:01:03.1/ata8/host7/scsi_host/host7
lrwxrwxrwx 1 root root 0 Aug  7 06:17 host8 -> ../../devices/platform/200000000.pci/pci0000:00/0000:00:00.0/0000:01:04.0/0000:03:00.0/host8/scsi_host/host8

in /sys/kernel/debug/ there is nothing.

Yes, it's number 8, and now I can see the information on the controller. Maybe make an automatic detection of the unit?

# mfiutil -u 8 show adapter
mfi8 Adapter:
    Product Name: LSI MegaRAID SAS 9265-8i
   Serial Number: SV11612095
        Firmware: 23.34.0-0019
     RAID Levels: JBOD, RAID0, RAID1, RAID5, RAID6, RAID10, RAID50
  Battery Backup: not present
           NVRAM: 32K
  Onboard Memory: 1024M
  Minimum Stripe: 8K
  Maximum Stripe: 1M

Thanks for the help.

[Dmitry Pugachev]

Can I ask you one more question? Is it possible to save the current firmware by reloading the new one?

[WHR]

Maybe make an automatic detection of the unit?

It may be possible to scan /sys/class/scsi_host/host*/proc_name files, and default to the lowest unit number whom the file contains megaraid_sas. But I'm not sure whether that will be implemented.

[WHR]

Can I ask you one more question? Is it possible to save the current firmware by reloading the new one?

I don't think mfiutil can do that currently. Consider using a low-level tool such as megarec for that instead. Note that megarec runs in MS-DOS.

[Dmitry Pugachev]

To do this, you will have to insert the controller into the x86 machine, I use the exotic vliw architecture e2k.

[WHR]

I see. That's a real problem with proprietary tooling. To be honest, I can't find any free management tool for this RAID controller other than mfiutil and bioctl-based tools in NetBSD and OpenBSD; so the options are quiet limited.

For LSI's SAS HBA cards, There's a source-available lsiutil which can be built for other architectures. I once used that tool to download and upload the firmware for my 3801X cards on an IBM Power System. However that tool doesn't work for MegaRAID SAS controllers.

[WHR]

(Reply via email was processed so slowly; I thought that message was lost...)

[WHR]

I'm closing this ticket as the original issue has been addressed.