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[Mellanox] Disable SSD NCQ on Mellanox platforms (sonic-net#17567)
- Why I did it Based on some research some products might experience an occasional IO failures in the communication between CPU and SSD because of NCQ. There seems to be a problem between some kernel versions and some SATA controllers. Syslog error message examples: Error "ata1: SError: { UnrecovData Handshk }" - "failed command: WRITE FPDMA QUEUED". Error "ata1: SError: { RecovComm HostInt PHYRdyChg CommWake 10B8B DevExch }" - "failed command: READ FPDMA QUEUED". Some vendors already disabled NCQ on their platforms in SONiC due to similar issue: [Arista] Disable ATA NCQ for a few products sonic-net#13739 [Arista] Disable ATA NCQ for a few products [Arista] Disable SSD NCQ on DCS-7050CX3-32S sonic-net#13964 [Arista] Disable SSD NCQ on DCS-7050CX3-32S Also there are other discussions on Debian/Ubuntu forums about similar issues and it was suggested to disable NCQ: https://askubuntu.com/questions/133946/are-these-sata-errors-dangerous - How I did it Add a kernel parameter to tell libata to disable NCQ - How to verify it Use FIO tool - fio --direct=1 --rw=randrw --bs=64k --ioengine=libaio --iodepth=64 --runtime=120 --numjobs=4
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‎device/mellanox/x86_64-mlnx_msn2010-r0/installer.conf

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ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="acpi_enforce_resources=lax acpi=noirq"
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ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="acpi_enforce_resources=lax acpi=noirq libata.force=noncq"

‎device/mellanox/x86_64-mlnx_msn2700-r0/installer.conf

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ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="acpi_enforce_resources=lax acpi=noirq"
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ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="acpi_enforce_resources=lax acpi=noirq libata.force=noncq"

‎device/mellanox/x86_64-mlnx_msn2700a1-r0/installer.conf

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ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="libata.force=noncq"

‎device/mellanox/x86_64-mlnx_msn3420-r0/installer.conf

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ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="libata.force=noncq"

‎device/mellanox/x86_64-mlnx_msn3700-r0/installer.conf

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ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="libata.force=noncq"

‎device/mellanox/x86_64-mlnx_msn3700c-r0/installer.conf

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ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="libata.force=noncq"

‎device/mellanox/x86_64-mlnx_msn3800-r0/installer.conf

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ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="libata.force=noncq"

‎device/mellanox/x86_64-mlnx_msn4410-r0/installer.conf

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ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="libata.force=noncq"

‎device/mellanox/x86_64-mlnx_msn4600-r0/installer.conf

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ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="libata.force=noncq"

‎device/mellanox/x86_64-mlnx_msn4600c-r0/installer.conf

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ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="libata.force=noncq"

‎device/mellanox/x86_64-mlnx_msn4700-r0/installer.conf

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ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="libata.force=noncq"

‎device/mellanox/x86_64-nvidia_sn2201-r0/installer.conf

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ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="acpi_enforce_resources=lax"
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ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="acpi_enforce_resources=lax libata.force=noncq"

‎device/mellanox/x86_64-nvidia_sn4800-r0/installer.conf

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ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="libata.force=noncq"

‎device/mellanox/x86_64-nvidia_sn5600-r0/installer.conf

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ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="libata.force=noncq"

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