On Wed, 2018-04-18 at 17:17 +0530, Muneendra Kumar M wrote:
> Although we concur with the idea of RDMA directly over Fibre channel, the
> actual implementation addressing the above reasons requires
> standardization and coordination with FC HBA vendors and other SAN
> ecosystem players. This effort is ongoing within our organization (Brocade
> at Broadcom).
What makes you think that a new standardization effort would have to be
launched to make RDMA over FC possible? RDMA over FC was standardized a long
time ago and is called "FC-VI". Why aren't you using that standard? A quote
from the FC-VI document:
Table 1 – VI and FC-VI functions
................................
VI function FC-VI equivalent
VI Message Exchange
Request/Response primitives Sequence
VI Connect/Disconnect request Unsolicited control IU
VI Connect response Solicited control IU
VI Send Data Solicited data IU
VI Send Response Command status IU
VI RDMA Write Request Solicited data IU
VI RDMA Write Response Command status IU
VI RDMA Read Request Unsolicited command IU
VI RDMA Read Response Solicited data IU
See also ANSI/INCITS 357:2002, "Fibre Channel Virtual Interface Architecture
Mapping Protocol (FC-VI)", NCITS Project 1332-D, July 2000.
Bart.
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