diff options
Diffstat (limited to 'drivers/infiniband/sw/rdmavt')
| -rw-r--r-- | drivers/infiniband/sw/rdmavt/mr.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/infiniband/sw/rdmavt/mr.c b/drivers/infiniband/sw/rdmavt/mr.c index 46b64970058e..4acf179adf3b 100644 --- a/drivers/infiniband/sw/rdmavt/mr.c +++ b/drivers/infiniband/sw/rdmavt/mr.c @@ -84,6 +84,7 @@ int rvt_driver_mr_init(struct rvt_dev_info *rdi) lkey_table_size = rdi->dparms.lkey_table_size; } rdi->lkey_table.max = 1 << lkey_table_size; + rdi->lkey_table.shift = 32 - lkey_table_size; lk_tab_size = rdi->lkey_table.max * sizeof(*rdi->lkey_table.table); rdi->lkey_table.table = (struct rvt_mregion __rcu **) vmalloc_node(lk_tab_size, rdi->dparms.node); @@ -774,7 +775,6 @@ int rvt_lkey_ok(struct rvt_lkey_table *rkt, struct rvt_pd *pd, struct rvt_mregion *mr; unsigned n, m; size_t off; - struct rvt_dev_info *dev = ib_to_rvt(pd->ibpd.device); /* * We use LKEY == zero for kernel virtual addresses @@ -782,6 +782,8 @@ int rvt_lkey_ok(struct rvt_lkey_table *rkt, struct rvt_pd *pd, */ rcu_read_lock(); if (sge->lkey == 0) { + struct rvt_dev_info *dev = ib_to_rvt(pd->ibpd.device); + if (pd->user) goto bail; mr = rcu_dereference(dev->dma_mr); @@ -798,8 +800,7 @@ int rvt_lkey_ok(struct rvt_lkey_table *rkt, struct rvt_pd *pd, isge->n = 0; goto ok; } - mr = rcu_dereference( - rkt->table[(sge->lkey >> (32 - dev->dparms.lkey_table_size))]); + mr = rcu_dereference(rkt->table[sge->lkey >> rkt->shift]); if (unlikely(!mr || atomic_read(&mr->lkey_invalid) || mr->lkey != sge->lkey || mr->pd != &pd->ibpd)) goto bail; @@ -899,8 +900,7 @@ int rvt_rkey_ok(struct rvt_qp *qp, struct rvt_sge *sge, goto ok; } - mr = rcu_dereference( - rkt->table[(rkey >> (32 - dev->dparms.lkey_table_size))]); + mr = rcu_dereference(rkt->table[rkey >> rkt->shift]); if (unlikely(!mr || atomic_read(&mr->lkey_invalid) || mr->lkey != rkey || qp->ibqp.pd != mr->pd)) goto bail; |