mmc: sdhci-of-dwcmshc: Intermittent data error under stress test

Bug #2039325 reported by Liming Sun
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-bluefield (Ubuntu)
Invalid
Undecided
Unassigned
Jammy
Fix Committed
Undecided
Unassigned

Bug Description

sdhci-dwcmshc MLNXBF30:00: __mmc_blk_ioctl_cmd: data error -110

SRU Justification:

[Impact]
This change is needed to avoid intermittent "sdhci-dwcmshc MLNXBF30:00: __mmc_blk_ioctl_cmd: data error -110" error under stress test

[Fix]
The fix added a quirk for the BF3 sdhci driver to avoid such data error.

[Test Case]
1. Same functionality and testing as on BlueField-1/2.
2. Install OS on NVME, and run the FIO test on EMMC.
fio --name=mmcblk0_randrw_stress_round_1 \
  --ioengine=libaio --direct=1 --time_based=1 \
  --end_fsync=1 --ramp_time=5 --norandommap=1 \
  --randrepeat=0 --group_reporting=1 --numjobs=8 \
  --iodepth=128 --rw=randrw --overwrite=1 \
  --runtime=3600 --bs=4K --filename=/dev/mmcblk0 &

[Regression Potential]
Same behavior from user perspective.

Changed in linux-bluefield (Ubuntu):
status: New → Invalid
Changed in linux-bluefield (Ubuntu Jammy):
status: New → Fix Committed
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