rcraid-patches

Inofficial Patches for AMD RAID linux kernel modules (rcraid.ko)

License and Disclaimer

This is a third-party patch, it is not from AMD. AMD does not take any responsibility for this patch. Read also the contents of the file LICENSE for permissions and liability.

Description

As its main feature, this patch incorporates the changes from init_timer() to timer_setup() which are necessary in Linux kernel starting from version 4.15. Since it tests for the kernel version, it should also run on kernels with versions below 4.15. The patch has been successfully tested on Ubuntu 18.04. More changes came in as users reported problems in other places of the AMD RAID driver. For a complete description, see file CHANGELOG.md.

Patching instructions

First download the AMD Linux RAID driver from the official AMD Raid driver page. (You need to accept the license.) Go to your download folder and unzip the downloaded file,

unzip raid_linux_driver_8_01_00_039_public.zip

Download the file rcraid.patch from this repository and put it in the same folder you saved the above zip file in. Then issue

patch -p1 < rcraid.patch

The output looks like:

  patching file driver_sdk/install
  patching file driver_sdk/src/Makefile
  patching file driver_sdk/src/common_shell
  patching file driver_sdk/src/install_rh
  patching file driver_sdk/src/install_suse
  patching file driver_sdk/src/rc_init.c
  patching file driver_sdk/src/rc_mem_ops.c
  patching file driver_sdk/src/rc_msg.c
  patching file driver_sdk/src/uninstall_rh
  patching file driver_sdk/src/uninstall_suse
  patching file driver_sdk/uninstall

Congratulations! You are done with patching.

Quick install instructions for Ubuntu 18.04

Download the latest Ubuntu 18.04 image, install it on a USB stick and boot it in UEFI mode (turn of CSM module in BIOS). After booting, download the official AMD RAID driver. Open a shell and follow these instructions:

  cd Downloads/
  unzip raid_linux_driver_8_01_00_039_public.zip
  sudo apt install git
  git clone https://github.com/martinkarlweber/rcraid-patches.git
  mv rcraid-patches/rcraid.patch .
  rm -rf rcraid-patches/
  patch -p1 < rcraid.patch
  cd driver_sdk/
  sudo apt install build-essential
  sudo /bin/bash ./install
  sudo rmmod ahci libahci
  sudo modprobe rcraid
  dmesg | less

If everything goes well, you will see an output similar to

  rcraid: loading out-of-tree module taints kernel.
  rcraid: module license 'Proprietary' taints kernel.
  Disabling lock debugging due to kernel taint
  rcraid: module verification failed: signature and/or required key missing - tainting kernel
  scsi host0: AMD, Inc. AMD-RAID
  scsi 0:0:0:0: Direct-Access     AMD-RAID Array 01         8.1  PQ: 0 ANSI: 5
  scsi 0:0:24:0: Processor         AMD-RAID Configuration    V1.2 PQ: 0 ANSI: 5
  scsi 0:1:0:0: CD-ROM            HL-DT-ST DVDRAM GH22NS50  TN03 PQ: 0 ANSI: 0
  sd 0:0:0:0: Attached scsi generic sg1 type 0
  sd 0:0:0:0: [sdb] 3905925120 512-byte logical blocks: (2.00 TB/1.82 TiB)
  sd 0:0:0:0: [sdb] Write Protect is off
  sd 0:0:0:0: [sdb] Mode Sense: 00 06 00 00
  sd 0:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
  scsi 0:0:24:0: Attached scsi generic sg2 type 3
  sr 0:1:0:0: [sr0] scsi-1 drive
  cdrom: Uniform CD-ROM driver Revision: 3.20
  sr 0:1:0:0: Attached scsi CD-ROM sr0
  sr 0:1:0:0: Attached scsi generic sg3 type 5
   sdb: sdb1 sdb2 sdb3
  sd 0:0:0:0: [sdb] Attached SCSI disk

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