sonic-buildimage/files
Samuel Angebault b9dffcbaaf
[Arista] Disable SSD NCQ on Lodoga (#13964)
Why I did it
Fix similar issue seen on #13739 but only for DCS-7050CX3-32S

How I did it
Add a kernel parameter to tell libata to disable NCQ

How to verify it
The message ata2.00: FORCE: horkage modified (noncq) should appear on the dmesg.

Test results using: fio --direct=1 --rw=randrw --bs=64k --ioengine=libaio --iodepth=64 --runtime=120 --numjobs=4

with NCQ

   READ: bw=26.1MiB/s (27.4MB/s), 26.1MiB/s-26.1MiB/s (27.4MB/s-27.4MB/s), io=3136MiB (3288MB), run=120053-120053msec
  WRITE: bw=26.3MiB/s (27.6MB/s), 26.3MiB/s-26.3MiB/s (27.6MB/s-27.6MB/s), io=3161MiB (3315MB), run=120053-120053msec
without NCQ

   READ: bw=22.0MiB/s (23.1MB/s), 22.0MiB/s-22.0MiB/s (23.1MB/s-23.1MB/s), io=2647MiB (2775MB), run=120069-120069msec
  WRITE: bw=22.2MiB/s (23.3MB/s), 22.2MiB/s-22.2MiB/s (23.3MB/s-23.3MB/s), io=2665MiB (2795MB), run=120069-120069msec
2023-02-24 10:08:04 -08:00
..
Aboot [Arista] Disable SSD NCQ on Lodoga (#13964) 2023-02-24 10:08:04 -08:00
apt [Build] set apt Acquire::Retries to 3 for bullseye (#12758) 2022-11-21 08:05:16 +08:00
build_scripts During build time mask only those feature/services that are disabled excplicitly (#13283) 2023-01-07 02:36:37 +00:00
build_templates Remove support to Mellanox SPC4 ASIC (#13932) 2023-02-23 08:25:34 +02:00
dhcp ZTP infrastructure changes to support DHCP discovery provisioning data (#3298) 2019-12-10 08:16:56 -08:00
docker [dockerd] Force usage of cgo DNS resolver (#13649) 2023-02-14 08:57:19 +02:00
image_config Fix rsyslogd start failed cause by rsyslog.conf is emtpy. (#13669) 2023-02-06 16:38:04 +02:00
initramfs-tools [Arista] Add initial support for 720DT-48S (#10656) 2022-06-29 09:56:24 -07:00
scripts change default to be on (#13495) 2023-01-24 23:59:54 +00:00
sshd Remove SSH host keys after installing the custom version of sshd (#10633) 2022-04-25 10:38:52 -07:00