[ewg] [PATCH RFC ofed-1.4] RDMA/CMA: Allocate PS_TCP ports from the host TCP port space

[Or Gerlitz]

Vladimir Sokolovsky wrote:
> Steve Wise wrote:
>> Tziporet & EWG members,
>>
>> iWARP customers including Sandia Labs have asked that we include this 
>> in OFED distributions to correctly unify the
>> host stack and iwarp stack TCP port space.
>>
>> I recommend we maintain this patch as part of the OFED distribution.
>>
>> I you agree, then we can pull this in as a patch file in 
>> kernel_patches/fixes/ for ofed-1.4.
>>
>> Thanks,
>>
>> Steve.
>>
>> -----
>>
>> RDMA/CMA: Allocate PS_TCP ports from the host TCP port space
>>
>> This is needed for iwarp providers that support native and rdma
>> connections over the same interface.
>>
>> Signed-off-by: Steve Wise <swise at opengridcomputing.com>
>> ---
>>
>> drivers/infiniband/core/cma.c |   27 ++++++++++++++++++++++++++-
>> 1 files changed, 26 insertions(+), 1 deletions(-)
>>
>
> Added to the ofed_1_4/linux-2.6.git ofed_kernel as
> kernel_patches/fixes/cma_0040_allocate_PS_TCP_ports.patch

Vlad,

This patch breaks iscsi targets that use the same port for iscsi/tcp and 
iscsi/rdma over IB, please remove it.

I asked Steve to send an updated version that opens the 
socket-for-rdma-cm-id-behind-the-cover only for iWARP devices.

Or.