RDMA/rxe: Implement flush execution in responder side

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Only the requested placement types that also registered in the destination
memory region are acceptable.
Otherwise, responder will also reply NAK "Remote Access Error" if it
found a placement type violation.

We will persist data via arch_wb_cache_pmem(), which could be
architecture specific.

This commit also adds 2 helpers to update qp.resp from the incoming packet.

Link: https://lore.kernel.org/r/20221206130201.30986-8-lizhijian@fujitsu.com
Reviewed-by: Zhu Yanjun <zyjzyj2000@gmail.com>
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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This commit is contained in:

Li Zhijian 2022-12-06 21:01:58 +08:00 • committed by Jason Gunthorpe

parent fa1fd682ad

commit ea1bb00ee9

4 changed files with 183 additions and 20 deletions

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1

drivers/infiniband/sw/rxe/rxe_loc.h

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36

drivers/infiniband/sw/rxe/rxe_mr.c

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160

drivers/infiniband/sw/rxe/rxe_resp.c

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6

drivers/infiniband/sw/rxe/rxe_verbs.h

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