RDMA/rxe: Check PDs for memory window binds

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The IBTA Software Transport Verbs specification requires the QP,
Memory Window and Memory Region for a Bind Memory Window operation
to belong to the same HCA and protection domain.

rxe only checked the QP and MW protection domain for type 2 MWs.
Move the QP/MW PD check to the common bind path and also reject
binding an MW to an MR from a different PD.

Invalid bind requests continue to fail with IB_WC_MW_BIND_ERR.

Reviewed-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Signed-off-by: Zhiwei Zhang <202275009@qq.com>
Link: https://patch.msgid.link/tencent_FD4FB25AA4FFA845E63F5AC36CF4A46CDC0A@qq.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

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Zhiwei Zhang 2026-06-26 09:59:20 +08:00 • committed by Leon Romanovsky

parent 4dc9c884c0

commit fbbe1d5cd7

1 changed files with 12 additions and 8 deletions

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drivers/infiniband/sw/rxe/rxe_mw.c

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