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RDMA/rxe: Introduce rxe access supported flags

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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>
This commit is contained in:
Bob Pearson 2023-05-30 17:13:33 -05:00 • committed by Jason Gunthorpe
parent 425e1c9018
commit 02ed253770
4 changed files with 30 additions and 3 deletions
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5
drivers/infiniband/sw/rxe/rxe_mw.c
View file

@ -197,6 +197,11 @@ int rxe_bind_mw(struct rxe_qp *qp, struct rxe_send_wqe *wqe)
mr = NULL; mr = NULL;
} }
if (access & ~RXE_ACCESS_SUPPORTED_MW) {
rxe_err_mw(mw, "access %#x not supported", access);
return -EOPNOTSUPP;
}
spin_lock_bh(&mw->lock); spin_lock_bh(&mw->lock);
ret = rxe_check_bind_mw(qp, wqe, mw, mr, access); ret = rxe_check_bind_mw(qp, wqe, mw, mr, access);

7
drivers/infiniband/sw/rxe/rxe_qp.c
View file

@ -392,6 +392,13 @@ int rxe_qp_chk_attr(struct rxe_dev *rxe, struct rxe_qp *qp,
if (mask & IB_QP_CAP && rxe_qp_chk_cap(rxe, &attr->cap, !!qp->srq)) if (mask & IB_QP_CAP && rxe_qp_chk_cap(rxe, &attr->cap, !!qp->srq))
goto err1; goto err1;
if (mask & IB_QP_ACCESS_FLAGS) {
if (!(qp_type(qp) == IB_QPT_RC || qp_type(qp) == IB_QPT_UC))
goto err1;
if (attr->qp_access_flags & ~RXE_ACCESS_SUPPORTED_QP)
goto err1;
}
if (mask & IB_QP_AV && rxe_av_chk_attr(qp, &attr->ah_attr)) if (mask & IB_QP_AV && rxe_av_chk_attr(qp, &attr->ah_attr))
goto err1; goto err1;

6
drivers/infiniband/sw/rxe/rxe_verbs.c
View file

@ -1260,6 +1260,12 @@ static struct ib_mr *rxe_reg_user_mr(struct ib_pd *ibpd, u64 start,
struct rxe_mr *mr; struct rxe_mr *mr;
int err, cleanup_err; int err, cleanup_err;
if (access & ~RXE_ACCESS_SUPPORTED_MR) {
rxe_err_pd(pd, "access = %#x not supported (%#x)", access,
RXE_ACCESS_SUPPORTED_MR);
return ERR_PTR(-EOPNOTSUPP);
}
mr = kzalloc(sizeof(*mr), GFP_KERNEL); mr = kzalloc(sizeof(*mr), GFP_KERNEL);
if (!mr) if (!mr)
return ERR_PTR(-ENOMEM); return ERR_PTR(-ENOMEM);

15
drivers/infiniband/sw/rxe/rxe_verbs.h
View file

@ -253,10 +253,19 @@ struct rxe_qp {
struct execute_work cleanup_work; struct execute_work cleanup_work;
}; };
enum rxe_access { enum {
RXE_ACCESS_REMOTE = (IB_ACCESS_REMOTE_READ RXE_ACCESS_REMOTE = IB_ACCESS_REMOTE_READ
| IB_ACCESS_REMOTE_WRITE | IB_ACCESS_REMOTE_WRITE
| IB_ACCESS_REMOTE_ATOMIC), | IB_ACCESS_REMOTE_ATOMIC,
RXE_ACCESS_SUPPORTED_MR = RXE_ACCESS_REMOTE
| IB_ACCESS_LOCAL_WRITE
| IB_ACCESS_MW_BIND
| IB_ACCESS_ON_DEMAND
| IB_ACCESS_FLUSH_GLOBAL
| IB_ACCESS_FLUSH_PERSISTENT,
RXE_ACCESS_SUPPORTED_QP = RXE_ACCESS_SUPPORTED_MR,
RXE_ACCESS_SUPPORTED_MW = RXE_ACCESS_SUPPORTED_MR
| IB_ZERO_BASED,
}; };
enum rxe_mr_state { enum rxe_mr_state {