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Allowing userspace to invoke these commands is probably going to crash these drivers as they are not tested and not expecting to use them on a user object. For example pvrdma touches cq->ring_state which is not initialized for user QPs. These commands are effected: - IB_USER_VERBS_CMD_REQ_NOTIFY_CQ is ibv_cmd_req_notify_cq() in rdma-core, only hfi1, ipath and rxe calls it. - IB_USER_VERBS_CMD_POLL_CQ is ibv_cmd_poll_cq() in rdma-core, only ipath and hfi1 calls it. - IB_USER_VERBS_CMD_POST_SEND/RECV is ibv_cmd_post_send/recv() in rdma-core, only ipath and hfi1 call them. - IB_USER_VERBS_CMD_POST_SRQ_RECV is ibv_cmd_post_srq_recv() in rdma-core, only ipath and hfi1 calls it. - IB_USER_VERBS_CMD_PEEK_CQ isn't even implemented anywhere - IB_USER_VERBS_CMD_CREATE/DESTROY_AH is ibv_cmd_create/destroy_ah() in rdma-core, only bnxt_re, efa, hfi1, ipath, mlx5, orcrdma, and rxe call it. Link: https://lore.kernel.org/r/10-v1-caa70ba3d1ab+1436e-ucmd_mask_jgg@nvidia.com Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
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|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| pvrdma_cmd.c | ||
| pvrdma_cq.c | ||
| pvrdma_dev_api.h | ||
| pvrdma_doorbell.c | ||
| pvrdma_main.c | ||
| pvrdma_misc.c | ||
| pvrdma_mr.c | ||
| pvrdma_qp.c | ||
| pvrdma_ring.h | ||
| pvrdma_srq.c | ||
| pvrdma_verbs.c | ||
| pvrdma_verbs.h | ||
| pvrdma.h | ||