Hi Michael, Sujith,

Tested NVMe/TCP initiator support with the kernel mentioned above,
whenever I do nvme connect and mount the luns ,I used to observe the
same error mentioned in the launchpad which an engineer had filed
previously related to PCI NVMe SSD.

https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1966203

But no functionality loss is seen. No other errors observed when kept
for fio stress for 24-48 Hrs.

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https://bugs.launchpad.net/bugs/1948626

Title:
  [SRU] Ubuntu 22.04 Feature Request-Add support for a NVMe-oF-TCP CDC
  Client  - TP 8010

Status in linux package in Ubuntu:
  Incomplete
Status in linux source package in Jammy:
  Incomplete

Bug description:
  [Impact]
  NVMe-oF suffers from a well-known discovery problem that fundamentally limits 
the size of realistic deployments. To address this discovery problem, the FMDS 
working group (within nvme.org) is working on two proposals that will allow 
NVMe-oF to be managed via a “network centric” provisioning process instead of 
an “end-node centric” one.
  TP-8009 (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1948625): will 
enable the Automated Discovery of NVMe-oF Discovery Controllers in an IP 
Network and will prevent an end-user from needing to manually configure the IP 
Address of Discovery Controllers.
  TP-8010 (this launchpad): will define the concept of a Centralized Discovery 
Controller (CDC) and will allow end-users to manage connectivity from a single 
point of management on an IP Fabric by IP Fabric basis.

  Here is code that implements TP8009 and TP8010:
  https://github.com/martin-belanger/nvme-stas/ which now got pulled into 
upstream - https://github.com/linux-nvme/nvme-stas

  [Fix]
  1. Update kernel with TP8010 kernel patches:

  a.
  
https://git.infradead.org/git/nvme.git/commit/647b2e01fb2d3394090ed11d1b5238157c52f907

  b.
  
https://git.infradead.org/git/nvme.git/commit/de87c02ea9b4d93d1114b912b621ead81f6738e0

  c.
   nvme: add CNTRLTYPE definitions for 'identify controller
  https://lore.kernel.org/all/66fc4f03-ed5c-4727-ba94-c23daf7d6...@oracle.com/
  [Test Case]

  [Other Info]
  
https://code.launchpad.net/~mreed8855/ubuntu/+source/linux/+git/jammy/+ref/nvme_tcp_patches_2

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