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RDMA/rxe: Introduce rxe access supported flags
Introduce supported bit masks for setting the access attributes of MWs, MRs, and QPs. Check these when attributes are set. Link: https://lore.kernel.org/r/20230530221334.89432-5-rpearsonhpe@gmail.com Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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parent
425e1c9018
commit
02ed253770
4 changed files with 30 additions and 3 deletions
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@ -197,6 +197,11 @@ int rxe_bind_mw(struct rxe_qp *qp, struct rxe_send_wqe *wqe)
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mr = NULL;
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}
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if (access & ~RXE_ACCESS_SUPPORTED_MW) {
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rxe_err_mw(mw, "access %#x not supported", access);
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return -EOPNOTSUPP;
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}
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spin_lock_bh(&mw->lock);
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ret = rxe_check_bind_mw(qp, wqe, mw, mr, access);
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@ -392,6 +392,13 @@ int rxe_qp_chk_attr(struct rxe_dev *rxe, struct rxe_qp *qp,
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if (mask & IB_QP_CAP && rxe_qp_chk_cap(rxe, &attr->cap, !!qp->srq))
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goto err1;
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if (mask & IB_QP_ACCESS_FLAGS) {
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if (!(qp_type(qp) == IB_QPT_RC || qp_type(qp) == IB_QPT_UC))
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goto err1;
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if (attr->qp_access_flags & ~RXE_ACCESS_SUPPORTED_QP)
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goto err1;
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}
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if (mask & IB_QP_AV && rxe_av_chk_attr(qp, &attr->ah_attr))
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goto err1;
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@ -1260,6 +1260,12 @@ static struct ib_mr *rxe_reg_user_mr(struct ib_pd *ibpd, u64 start,
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struct rxe_mr *mr;
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int err, cleanup_err;
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if (access & ~RXE_ACCESS_SUPPORTED_MR) {
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rxe_err_pd(pd, "access = %#x not supported (%#x)", access,
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RXE_ACCESS_SUPPORTED_MR);
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return ERR_PTR(-EOPNOTSUPP);
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}
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mr = kzalloc(sizeof(*mr), GFP_KERNEL);
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if (!mr)
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return ERR_PTR(-ENOMEM);
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@ -253,10 +253,19 @@ struct rxe_qp {
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struct execute_work cleanup_work;
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};
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enum rxe_access {
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RXE_ACCESS_REMOTE = (IB_ACCESS_REMOTE_READ
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enum {
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RXE_ACCESS_REMOTE = IB_ACCESS_REMOTE_READ
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| IB_ACCESS_REMOTE_WRITE
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| IB_ACCESS_REMOTE_ATOMIC),
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| IB_ACCESS_REMOTE_ATOMIC,
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RXE_ACCESS_SUPPORTED_MR = RXE_ACCESS_REMOTE
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| IB_ACCESS_LOCAL_WRITE
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| IB_ACCESS_MW_BIND
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| IB_ACCESS_ON_DEMAND
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| IB_ACCESS_FLUSH_GLOBAL
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| IB_ACCESS_FLUSH_PERSISTENT,
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RXE_ACCESS_SUPPORTED_QP = RXE_ACCESS_SUPPORTED_MR,
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RXE_ACCESS_SUPPORTED_MW = RXE_ACCESS_SUPPORTED_MR
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| IB_ZERO_BASED,
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};
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enum rxe_mr_state {
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