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doc/nvmf: add note about the issues with RDMA on E810 NICs

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Added note to the nvmf documentation about an issue [1] with destroying
qpairs on E810 cards in RoCE mode.  The note needs to be removed once
the issue is resolved.

[1] https://github.com/spdk/spdk/issues/1840

Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: Ie03a7a662391bd738848f71e582748a334a6ffd5
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7577
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: John Kariuki <John.K.Kariuki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Konrad Sztyber 2021-04-23 11:04:23 +02:00 committed by Tomasz Zawadzki
parent 5a7d428d0f
commit 97b0c5d327
1 changed files with 4 additions and 0 deletions
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doc/nvmf.md
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@ -106,6 +106,10 @@ using 1GB hugepages or by pre-reserving memory at application startup with `--me
option. All pre-reserved memory will be registered as a single region, but won't be returned to the option. All pre-reserved memory will be registered as a single region, but won't be returned to the
system until the SPDK application is terminated. system until the SPDK application is terminated.
Another known issue occurs when using the E810 NICs in RoCE mode. Specifically, the NVMe-oF target
sometimes cannot destroy a qpair, because its posted work requests don't get flushed. It can cause
the NVMe-oF target application unable to terminate cleanly.
## TCP transport support {#nvmf_tcp_transport} ## TCP transport support {#nvmf_tcp_transport}
The transport is built into the nvmf_tgt by default, and it does not need any special libraries. The transport is built into the nvmf_tgt by default, and it does not need any special libraries.