Request timeout seen with NVMEoF TCP

[Potnuri Bharat Teja]

Hi All,
I am seeing the following timeouts and reconnects on NVMF TCP initiator with latest v5.10-rc5 
kernel.
I see the same behavior with nvme tree too (branch:nvme-5.11)
I last ran this with 5.8, where it was running fine.

Target configuration is, 1 target with 1gb ramdisk namespace. On intiator,
discover, connect and run fio or Iozone. Traces are seen within couple of minutes 
after starting the test.

initiator dmesg:
--
[77206.339485] nvme nvme1: queue 11: timeout request 0x34 type 6
[77206.340070] nvme nvme1: starting error recovery
[77206.340360] nvme nvme1: queue 11: timeout request 0x36 type 6
[77206.340766] nvme nvme1: queue 11: timeout request 0x38 type 6
[77206.341128] nvme nvme1: queue 11: timeout request 0x39 type 6
[77206.341515] nvme nvme1: queue 11: timeout request 0x3a type 4
[77206.341871] block nvme1n1: no usable path - requeuing I/O
[77206.342103] nvme nvme1: Reconnecting in 10 seconds...
[77206.342170] block nvme1n1: no usable path - requeuing I/O
[77206.342871] block nvme1n1: no usable path - requeuing I/O
[77206.343183] block nvme1n1: no usable path - requeuing I/O
[77206.343498] block nvme1n1: no usable path - requeuing I/O
[77206.343810] block nvme1n1: no usable path - requeuing I/O
[77206.344103] block nvme1n1: no usable path - requeuing I/O
[77206.344387] block nvme1n1: no usable path - requeuing I/O
[77206.344705] block nvme1n1: no usable path - requeuing I/O
[77206.345027] block nvme1n1: no usable path - requeuing I/O
[77211.971543] nvme_ns_head_submit_bio: 449 callbacks suppressed
[77211.971547] block nvme1n1: no usable path - requeuing I/O
[77216.600034] block nvme1n1: no usable path - requeuing I/O
[77216.600386] block nvme1n1: no usable path - requeuing I/O
[77216.600752] block nvme1n1: no usable path - requeuing I/O
[77216.601150] block nvme1n1: no usable path - requeuing I/O
[77216.601531] block nvme1n1: no usable path - requeuing I/O
[77216.601915] block nvme1n1: no usable path - requeuing I/O
[77216.602176] block nvme1n1: no usable path - requeuing I/O
[77216.602467] block nvme1n1: no usable path - requeuing I/O
[77216.602830] block nvme1n1: no usable path - requeuing I/O
[77216.603597] nvme nvme1: creating 16 I/O queues.
[77216.642166] nvme nvme1: mapped 16/0/0 default/read/poll queues.
[77216.642516] debugfs: Directory 'hctx0' with parent '/' already present!
[77216.642899] debugfs: Directory 'hctx1' with parent '/' already present!
[77216.643177] debugfs: Directory 'hctx2' with parent '/' already present!
[77216.643475] debugfs: Directory 'hctx3' with parent '/' already present!
--

Please let me know if I could help with anything.

Thanks,
Bharat.