This bug is awaiting verification that the linux-mtk/5.15.0-1030.34
kernel in -proposed solves the problem. Please test the kernel and
update this bug with the results. If the problem is solved, change the
tag 'verification-needed-jammy-linux-mtk' to 'verification-done-jammy-
linux-mtk'. If the problem still exists, change the tag 'verification-
needed-jammy-linux-mtk' to 'verification-failed-jammy-linux-mtk'.


If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.


See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-jammy-linux-mtk-v2 
verification-needed-jammy-linux-mtk

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https://bugs.launchpad.net/bugs/1965927

Title:
  [Ubuntu 22.04] mpt3sas: Request to include latest bug fix patches

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Jammy:
  Fix Released

Bug description:
  [Impact]
  Request to include below mpt3sas driver bug fix patches in Ubuntu 22.04 
kernel. These patches got accepted by the upstream and please find the 
corresponding commit IDs as below,

  5db207d66d mpt3sas: Fix incorrect 4gb boundary check
  ca23ac823c mpt3sas: Remove scsi_dma_map errors messages
  9211faa39a scsi: mpt3sas: Update persistent trigger pages from sysfs interface

  [Fix]
  Below is the summary of each of the above bug fix commits,

  1. mpt3sas: Fix incorrect 4gb boundary check:
     Without this patch, driver was checking whether any of it's pool crosses 
the 4gb boundary or not using the pool's virtual address instead of using it's 
dma address. So some time driver may false positively assume that the pool as 
crossed the 4gb boundary region (as it observes that pool's virtual address is 
crossing the 4gb boundary) even though it is really not.

  2. mpt3sas: Remove scsi_dma_map errors messages:
     When driver set the DMA mask to 32bit then we observe that the SWIOTLB 
bounce buffers are getting exhausted quickly. For most of the IOs driver 
observe that scsi_dma_map() API returned with failure status and hence driver 
was printing below error message. Since this error message is getting printed 
per IO and if user issues heavy IOs then we observe that kernel overwhelmed 
with this error message. Also we will observe the kernel panic when the serial 
console is enabled. So to limit this issue, we removed this error message 
though this patch.
      "scsi_dma_map failed: request for 1310720 bytes!"

  3. mpt3sas: Update persistent trigger pages from sysfs interface:
     When user set's any diag buffer trigger conditions then driver has to save 
these trigger conditions in the controller Firmware's NVRAM region. So that 
when system reboots then driver can get these trigger conditions from 
Firmware's NVRAM region and set these trigger conditions automatically. so that 
user no need to set these conditions again. Without this patch driver was not 
not saving these user provided trigger conditions in the Firmware's NVRAM 
region.

  Please let me if I have missed to add any data.

  [Test Plan]

  1. All drives attached to the controller are Enumerated in OS
  2. IO stress for 5Hrs
  3. Created a filesystem and done some IO transitions
  4. Controller reset and TMs and while IOs are running
  5. driver load and unload
  6. Reboot loop
  7. Verified that the diag trigger settings are persistent across the reboots.

  [Where problems could occur]

  The regression risk is low.
   
  [Other Info]

  
https://code.launchpad.net/~mreed8855/ubuntu/+source/linux/+git/jammy/+ref/mpt3sas_lp_1965927

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