diff options
Diffstat (limited to 'drivers/infiniband/hw/qib/qib_driver.c')
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_driver.c | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/drivers/infiniband/hw/qib/qib_driver.c b/drivers/infiniband/hw/qib/qib_driver.c index a11de8e44e8b..707d789d0b67 100644 --- a/drivers/infiniband/hw/qib/qib_driver.c +++ b/drivers/infiniband/hw/qib/qib_driver.c @@ -322,6 +322,8 @@ static u32 qib_rcv_hdrerr(struct qib_ctxtdata *rcd, struct qib_pportdata *ppd, struct qib_ib_header *hdr = (struct qib_ib_header *) rhdr; struct qib_other_headers *ohdr = NULL; struct qib_ibport *ibp = &ppd->ibport_data; + struct qib_devdata *dd = ppd->dd; + struct rvt_dev_info *rdi = &dd->verbs_dev.rdi; struct rvt_qp *qp = NULL; u32 tlen = qib_hdrget_length_in_bytes(rhf_addr); u16 lid = be16_to_cpu(hdr->lrh[1]); @@ -366,9 +368,12 @@ static u32 qib_rcv_hdrerr(struct qib_ctxtdata *rcd, struct qib_pportdata *ppd, if (qp_num != QIB_MULTICAST_QPN) { int ruc_res; - qp = qib_lookup_qpn(ibp, qp_num); - if (!qp) + rcu_read_lock(); + qp = rvt_lookup_qpn(rdi, &ibp->rvp, qp_num); + if (!qp) { + rcu_read_unlock(); goto drop; + } /* * Handle only RC QPs - for other QP types drop error @@ -435,12 +440,7 @@ static u32 qib_rcv_hdrerr(struct qib_ctxtdata *rcd, struct qib_pportdata *ppd, unlock: spin_unlock(&qp->r_lock); - /* - * Notify qib_destroy_qp() if it is waiting - * for us to finish. - */ - if (atomic_dec_and_test(&qp->refcount)) - wake_up(&qp->wait); + rcu_read_unlock(); } /* Unicast QP */ } /* Valid packet with TIDErr */ @@ -565,15 +565,6 @@ move_along: updegr = 0; } } - /* - * Notify qib_destroy_qp() if it is waiting - * for lookaside_qp to finish. - */ - if (rcd->lookaside_qp) { - if (atomic_dec_and_test(&rcd->lookaside_qp->refcount)) - wake_up(&rcd->lookaside_qp->wait); - rcd->lookaside_qp = NULL; - } rcd->head = l; |