Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  RDMA/nes: Fix incorrect unlock in nes_process_mac_intr()
  RDMA/nes: Async event for closed QP causes crash
  RDMA/nes: Have ethtool read hardware registers for rx/tx stats
  RDMA/cxgb4: Only insert sq qid in lookup table
  RDMA/cxgb4: Support IB_WR_READ_WITH_INV opcode
  RDMA/cxgb4: Set fence flag for inv-local-stag work requests
  RDMA/cxgb4: Update some HW limits
  RDMA/cxgb4: Don't limit fastreg page list depth
  RDMA/cxgb4: Return proper errors in fastreg mr/pbl allocation
  RDMA/cxgb4: Fix overflow bug in CQ arm
  RDMA/cxgb4: Optimize CQ overflow detection
  RDMA/cxgb4: CQ size must be IQ size - 2
  RDMA/cxgb4: Register RDMA provider based on LLD state_change events
  RDMA/cxgb4: Detach from the LLD after unregistering RDMA device
  IB/ipath: Remove support for QLogic PCIe QLE devices
  IB/qib: Add new qib driver for QLogic PCIe InfiniBand adapters
  IB/mad: Make needlessly global mad_sendq_size/mad_recvq_size static
  IB/core: Allow device-specific per-port sysfs files
  mlx4_core: Clean up mlx4_alloc_icm() a bit
  mlx4_core: Fix possible chunk sg list overflow in mlx4_alloc_icm()

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/infiniband/hw/cxgb4/cq.c b/drivers/infiniband/hw/cxgb4/cq.c
index fb1aafcc294f..2447f5295482 100644
--- a/drivers/infiniband/hw/cxgb4/cq.c
+++ b/drivers/infiniband/hw/cxgb4/cq.c
@@ -373,6 +373,7 @@ static void create_read_req_cqe(struct t4_wq *wq, struct t4_cqe *hw_cqe,
                                  V_CQE_SWCQE(SW_CQE(hw_cqe)) |
                                  V_CQE_OPCODE(FW_RI_READ_REQ) |
                                  V_CQE_TYPE(1));
+        read_cqe->bits_type_ts = hw_cqe->bits_type_ts;
 }
 
 /*
@@ -780,6 +781,9 @@ struct ib_cq *c4iw_create_cq(struct ib_device *ibdev, int entries,
         /* account for the status page. */
         entries++;
 
+        /* IQ needs one extra entry to differentiate full vs empty. */
+        entries++;
+
         /*
          * entries must be multiple of 16 for HW.
          */
@@ -801,7 +805,7 @@ struct ib_cq *c4iw_create_cq(struct ib_device *ibdev, int entries,
 
         chp->rhp = rhp;
         chp->cq.size--;                         /* status page */
-        chp->ibcq.cqe = chp->cq.size;
+        chp->ibcq.cqe = chp->cq.size - 1;
         spin_lock_init(&chp->lock);
         atomic_set(&chp->refcnt, 1);
         init_waitqueue_head(&chp->wait);