IB: remove in-kernel support for memory windows

Remove the unused ib_allow_mw and ib_bind_mw functions, remove the
unused IB_WR_BIND_MW and IB_WC_BIND_MW opcodes and move ib_dealloc_mw
into the uverbs module.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> [core]
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

27 files changed, 16 insertions, 381 deletions

diff --git a/Documentation/infiniband/core_locking.txt b/Documentation/infiniband/core_locking.txt
index e1678542279a..4b1f36b6ada0 100644
--- a/Documentation/infiniband/core_locking.txt
+++ b/Documentation/infiniband/core_locking.txt
@@ -15,7 +15,6 @@ Sleeping and interrupt context
     modify_ah
     query_ah
     destroy_ah
-    bind_mw
     post_send
     post_recv
     poll_cq
@@ -31,7 +30,6 @@ Sleeping and interrupt context
     ib_modify_ah
     ib_query_ah
     ib_destroy_ah
-    ib_bind_mw
     ib_post_send
     ib_post_recv
     ib_req_notify_cq
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
index 94bbd8c155fc..612ccfd39bf9 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h
@@ -204,6 +204,8 @@ void ib_uverbs_event_handler(struct ib_event_handler *handler,
                              struct ib_event *event);
 void ib_uverbs_dealloc_xrcd(struct ib_uverbs_device *dev, struct ib_xrcd *xrcd);
 
+int uverbs_dealloc_mw(struct ib_mw *mw);
+
 struct ib_uverbs_flow_spec {
         union {
                 union {
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 95610565fb46..5428ebee096f 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -1243,7 +1243,7 @@ err_copy:
         idr_remove_uobj(&ib_uverbs_mw_idr, uobj);
 
 err_unalloc:
-        ib_dealloc_mw(mw);
+        uverbs_dealloc_mw(mw);
 
 err_put:
         put_pd_read(pd);
@@ -1272,7 +1272,7 @@ ssize_t ib_uverbs_dealloc_mw(struct ib_uverbs_file *file,
 
         mw = uobj->object;
 
-        ret = ib_dealloc_mw(mw);
+        ret = uverbs_dealloc_mw(mw);
         if (!ret)
                 uobj->live = 0;
 
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index e3ef28861be6..39680aed99dd 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -133,6 +133,17 @@ static int (*uverbs_ex_cmd_table[])(struct ib_uverbs_file *file,
 static void ib_uverbs_add_one(struct ib_device *device);
 static void ib_uverbs_remove_one(struct ib_device *device, void *client_data);
 
+int uverbs_dealloc_mw(struct ib_mw *mw)
+{
+        struct ib_pd *pd = mw->pd;
+        int ret;
+
+        ret = mw->device->dealloc_mw(mw);
+        if (!ret)
+                atomic_dec(&pd->usecnt);
+        return ret;
+}
+
 static void ib_uverbs_release_dev(struct kobject *kobj)
 {
         struct ib_uverbs_device *dev =
@@ -224,7 +235,7 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file,
                 struct ib_mw *mw = uobj->object;
 
                 idr_remove_uobj(&ib_uverbs_mw_idr, uobj);
-                ib_dealloc_mw(mw);
+                uverbs_dealloc_mw(mw);
                 kfree(uobj);
         }
 
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 70b1016be1c8..c5e0f07a7f82 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -1403,42 +1403,6 @@ struct ib_mr *ib_alloc_mr(struct ib_pd *pd,
 }
 EXPORT_SYMBOL(ib_alloc_mr);
 
-/* Memory windows */
-
-struct ib_mw *ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type)
-{
-        struct ib_mw *mw;
-
-        if (!pd->device->alloc_mw)
-                return ERR_PTR(-ENOSYS);
-
-        mw = pd->device->alloc_mw(pd, type);
-        if (!IS_ERR(mw)) {
-                mw->device  = pd->device;
-                mw->pd      = pd;
-                mw->uobject = NULL;
-                mw->type    = type;
-                atomic_inc(&pd->usecnt);
-        }
-
-        return mw;
-}
-EXPORT_SYMBOL(ib_alloc_mw);
-
-int ib_dealloc_mw(struct ib_mw *mw)
-{
-        struct ib_pd *pd;
-        int ret;
-
-        pd = mw->pd;
-        ret = mw->device->dealloc_mw(mw);
-        if (!ret)
-                atomic_dec(&pd->usecnt);
-
-        return ret;
-}
-EXPORT_SYMBOL(ib_dealloc_mw);
-
 /* "Fast" memory regions */
 
 struct ib_fmr *ib_alloc_fmr(struct ib_pd *pd,
diff --git a/drivers/infiniband/hw/cxgb3/iwch_cq.c b/drivers/infiniband/hw/cxgb3/iwch_cq.c
index cfe404925a39..97fbfd2c298e 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_cq.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_cq.c
@@ -115,10 +115,6 @@ static int iwch_poll_cq_one(struct iwch_dev *rhp, struct iwch_cq *chp,
                 case T3_SEND_WITH_SE_INV:
                         wc->opcode = IB_WC_SEND;
                         break;
-                case T3_BIND_MW:
-                        wc->opcode = IB_WC_BIND_MW;
-                        break;
-
                 case T3_LOCAL_INV:
                         wc->opcode = IB_WC_LOCAL_INV;
                         break;
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c
index f7aa019a3c1a..384e1d783507 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -1388,7 +1388,6 @@ int iwch_register_device(struct iwch_dev *dev)
         dev->ibdev.reg_user_mr = iwch_reg_user_mr;
         dev->ibdev.dereg_mr = iwch_dereg_mr;
         dev->ibdev.alloc_mw = iwch_alloc_mw;
-        dev->ibdev.bind_mw = iwch_bind_mw;
         dev->ibdev.dealloc_mw = iwch_dealloc_mw;
         dev->ibdev.alloc_mr = iwch_alloc_mr;
         dev->ibdev.map_mr_sg = iwch_map_mr_sg;
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.h b/drivers/infiniband/hw/cxgb3/iwch_provider.h
index f4fa6d677c0f..f24df44146c6 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.h
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.h
@@ -330,9 +330,6 @@ int iwch_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
                       struct ib_send_wr **bad_wr);
 int iwch_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
                       struct ib_recv_wr **bad_wr);
-int iwch_bind_mw(struct ib_qp *qp,
-                             struct ib_mw *mw,
-                             struct ib_mw_bind *mw_bind);
 int iwch_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
 int iwch_post_terminate(struct iwch_qp *qhp, struct respQ_msg_t *rsp_msg);
 int iwch_post_zb_read(struct iwch_ep *ep);
diff --git a/drivers/infiniband/hw/cxgb3/iwch_qp.c b/drivers/infiniband/hw/cxgb3/iwch_qp.c
index d0548fc6395e..d939980a708f 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_qp.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_qp.c
@@ -526,88 +526,6 @@ out:
         return err;
 }
 
-int iwch_bind_mw(struct ib_qp *qp,
-                             struct ib_mw *mw,
-                             struct ib_mw_bind *mw_bind)
-{
-        struct iwch_dev *rhp;
-        struct iwch_mw *mhp;
-        struct iwch_qp *qhp;
-        union t3_wr *wqe;
-        u32 pbl_addr;
-        u8 page_size;
-        u32 num_wrs;
-        unsigned long flag;
-        struct ib_sge sgl;
-        int err=0;
-        enum t3_wr_flags t3_wr_flags;
-        u32 idx;
-        struct t3_swsq *sqp;
-
-        qhp = to_iwch_qp(qp);
-        mhp = to_iwch_mw(mw);
-        rhp = qhp->rhp;
-
-        spin_lock_irqsave(&qhp->lock, flag);
-        if (qhp->attr.state > IWCH_QP_STATE_RTS) {
-                spin_unlock_irqrestore(&qhp->lock, flag);
-                return -EINVAL;
-        }
-        num_wrs = Q_FREECNT(qhp->wq.sq_rptr, qhp->wq.sq_wptr,
-                            qhp->wq.sq_size_log2);
-        if (num_wrs == 0) {
-                spin_unlock_irqrestore(&qhp->lock, flag);
-                return -ENOMEM;
-        }
-        idx = Q_PTR2IDX(qhp->wq.wptr, qhp->wq.size_log2);
-        PDBG("%s: idx 0x%0x, mw 0x%p, mw_bind 0x%p\n", __func__, idx,
-             mw, mw_bind);
-        wqe = (union t3_wr *) (qhp->wq.queue + idx);
-
-        t3_wr_flags = 0;
-        if (mw_bind->send_flags & IB_SEND_SIGNALED)
-                t3_wr_flags = T3_COMPLETION_FLAG;
-
-        sgl.addr = mw_bind->bind_info.addr;
-        sgl.lkey = mw_bind->bind_info.mr->lkey;
-        sgl.length = mw_bind->bind_info.length;
-        wqe->bind.reserved = 0;
-        wqe->bind.type = TPT_VATO;
-
-        /* TBD: check perms */
-        wqe->bind.perms = iwch_ib_to_tpt_bind_access(
-                mw_bind->bind_info.mw_access_flags);
-        wqe->bind.mr_stag = cpu_to_be32(mw_bind->bind_info.mr->lkey);
-        wqe->bind.mw_stag = cpu_to_be32(mw->rkey);
-        wqe->bind.mw_len = cpu_to_be32(mw_bind->bind_info.length);
-        wqe->bind.mw_va = cpu_to_be64(mw_bind->bind_info.addr);
-        err = iwch_sgl2pbl_map(rhp, &sgl, 1, &pbl_addr, &page_size);
-        if (err) {
-                spin_unlock_irqrestore(&qhp->lock, flag);
-                return err;
-        }
-        wqe->send.wrid.id0.hi = qhp->wq.sq_wptr;
-        sqp = qhp->wq.sq + Q_PTR2IDX(qhp->wq.sq_wptr, qhp->wq.sq_size_log2);
-        sqp->wr_id = mw_bind->wr_id;
-        sqp->opcode = T3_BIND_MW;
-        sqp->sq_wptr = qhp->wq.sq_wptr;
-        sqp->complete = 0;
-        sqp->signaled = (mw_bind->send_flags & IB_SEND_SIGNALED);
-        wqe->bind.mr_pbl_addr = cpu_to_be32(pbl_addr);
-        wqe->bind.mr_pagesz = page_size;
-        build_fw_riwrh((void *)wqe, T3_WR_BIND, t3_wr_flags,
-                       Q_GENBIT(qhp->wq.wptr, qhp->wq.size_log2), 0,
-                       sizeof(struct t3_bind_mw_wr) >> 3, T3_SOPEOP);
-        ++(qhp->wq.wptr);
-        ++(qhp->wq.sq_wptr);
-        spin_unlock_irqrestore(&qhp->lock, flag);
-
-        if (cxio_wq_db_enabled(&qhp->wq))
-                ring_doorbell(qhp->wq.doorbell, qhp->wq.qpid);
-
-        return err;
-}
-
 static inline void build_term_codes(struct respQ_msg_t *rsp_msg,
                                     u8 *layer_type, u8 *ecode)
 {
diff --git a/drivers/infiniband/hw/cxgb4/cq.c b/drivers/infiniband/hw/cxgb4/cq.c
index de9cd6901752..cf21df4a8bf5 100644
--- a/drivers/infiniband/hw/cxgb4/cq.c
+++ b/drivers/infiniband/hw/cxgb4/cq.c
@@ -744,9 +744,6 @@ static int c4iw_poll_cq_one(struct c4iw_cq *chp, struct ib_wc *wc)
                 case FW_RI_SEND_WITH_SE:
                         wc->opcode = IB_WC_SEND;
                         break;
-                case FW_RI_BIND_MW:
-                        wc->opcode = IB_WC_BIND_MW;
-                        break;
 
                 case FW_RI_LOCAL_INV:
                         wc->opcode = IB_WC_LOCAL_INV;
diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
index dd00cf2d0b65..fb2de75a0392 100644
--- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
+++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
@@ -947,8 +947,6 @@ int c4iw_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
                       struct ib_send_wr **bad_wr);
 int c4iw_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
                       struct ib_recv_wr **bad_wr);
-int c4iw_bind_mw(struct ib_qp *qp, struct ib_mw *mw,
-                 struct ib_mw_bind *mw_bind);
 int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param);
 int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog);
 int c4iw_destroy_listen(struct iw_cm_id *cm_id);
diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c
index 249ea57e1d99..ec04272fbdc2 100644
--- a/drivers/infiniband/hw/cxgb4/provider.c
+++ b/drivers/infiniband/hw/cxgb4/provider.c
@@ -552,7 +552,6 @@ int c4iw_register_device(struct c4iw_dev *dev)
         dev->ibdev.reg_user_mr = c4iw_reg_user_mr;
         dev->ibdev.dereg_mr = c4iw_dereg_mr;
         dev->ibdev.alloc_mw = c4iw_alloc_mw;
-        dev->ibdev.bind_mw = c4iw_bind_mw;
         dev->ibdev.dealloc_mw = c4iw_dealloc_mw;
         dev->ibdev.alloc_mr = c4iw_alloc_mr;
         dev->ibdev.map_mr_sg = c4iw_map_mr_sg;
diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c
index aa515afee724..e99345eb875a 100644
--- a/drivers/infiniband/hw/cxgb4/qp.c
+++ b/drivers/infiniband/hw/cxgb4/qp.c
@@ -933,11 +933,6 @@ int c4iw_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
         return err;
 }
 
-int c4iw_bind_mw(struct ib_qp *qp, struct ib_mw *mw, struct ib_mw_bind *mw_bind)
-{
-        return -ENOSYS;
-}
-
 static inline void build_term_codes(struct t4_cqe *err_cqe, u8 *layer_type,
                                     u8 *ecode)
 {
diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c
index b88fc8f5ab18..9f8b516eb2b0 100644
--- a/drivers/infiniband/hw/mlx4/cq.c
+++ b/drivers/infiniband/hw/mlx4/cq.c
@@ -811,9 +811,6 @@ repoll:
                         wc->opcode    = IB_WC_MASKED_FETCH_ADD;
                         wc->byte_len  = 8;
                         break;
-                case MLX4_OPCODE_BIND_MW:
-                        wc->opcode    = IB_WC_BIND_MW;
-                        break;
                 case MLX4_OPCODE_LSO:
                         wc->opcode    = IB_WC_LSO;
                         break;
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 97d6878f9938..627267f860f9 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -2283,7 +2283,6 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
         if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW ||
             dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) {
                 ibdev->ib_dev.alloc_mw = mlx4_ib_alloc_mw;
-                ibdev->ib_dev.bind_mw = mlx4_ib_bind_mw;
                 ibdev->ib_dev.dealloc_mw = mlx4_ib_dealloc_mw;
 
                 ibdev->ib_dev.uverbs_cmd_mask |=
diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h
index 1caa11edac03..8916e9b55324 100644
--- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
+++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
@@ -704,8 +704,6 @@ struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
                                   struct ib_udata *udata);
 int mlx4_ib_dereg_mr(struct ib_mr *mr);
 struct ib_mw *mlx4_ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type);
-int mlx4_ib_bind_mw(struct ib_qp *qp, struct ib_mw *mw,
-                    struct ib_mw_bind *mw_bind);
 int mlx4_ib_dealloc_mw(struct ib_mw *mw);
 struct ib_mr *mlx4_ib_alloc_mr(struct ib_pd *pd,
                                enum ib_mr_type mr_type,
diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c
index 4d1e1c632603..242b94ec105b 100644
--- a/drivers/infiniband/hw/mlx4/mr.c
+++ b/drivers/infiniband/hw/mlx4/mr.c
@@ -366,28 +366,6 @@ err_free:
         return ERR_PTR(err);
 }
 
-int mlx4_ib_bind_mw(struct ib_qp *qp, struct ib_mw *mw,
-                    struct ib_mw_bind *mw_bind)
-{
-        struct ib_bind_mw_wr  wr;
-        struct ib_send_wr *bad_wr;
-        int ret;
-
-        memset(&wr, 0, sizeof(wr));
-        wr.wr.opcode            = IB_WR_BIND_MW;
-        wr.wr.wr_id             = mw_bind->wr_id;
-        wr.wr.send_flags        = mw_bind->send_flags;
-        wr.mw                   = mw;
-        wr.bind_info            = mw_bind->bind_info;
-        wr.rkey                 = ib_inc_rkey(mw->rkey);
-
-        ret = mlx4_ib_post_send(qp, &wr.wr, &bad_wr);
-        if (!ret)
-                mw->rkey = wr.rkey;
-
-        return ret;
-}
-
 int mlx4_ib_dealloc_mw(struct ib_mw *ibmw)
 {
         struct mlx4_ib_mw *mw = to_mmw(ibmw);
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index 6049644da429..3f5d2af5f8e4 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -115,7 +115,6 @@ static const __be32 mlx4_ib_opcode[] = {
         [IB_WR_REG_MR]                          = cpu_to_be32(MLX4_OPCODE_FMR),
         [IB_WR_MASKED_ATOMIC_CMP_AND_SWP]       = cpu_to_be32(MLX4_OPCODE_MASKED_ATOMIC_CS),
         [IB_WR_MASKED_ATOMIC_FETCH_AND_ADD]     = cpu_to_be32(MLX4_OPCODE_MASKED_ATOMIC_FA),
-        [IB_WR_BIND_MW]                         = cpu_to_be32(MLX4_OPCODE_BIND_MW),
 };
 
 static struct mlx4_ib_sqp *to_msqp(struct mlx4_ib_qp *mqp)
@@ -2531,25 +2530,6 @@ static void set_reg_seg(struct mlx4_wqe_fmr_seg *fseg,
         fseg->reserved[1]       = 0;
 }
 
-static void set_bind_seg(struct mlx4_wqe_bind_seg *bseg,
-                struct ib_bind_mw_wr *wr)
-{
-        bseg->flags1 =
-                convert_access(wr->bind_info.mw_access_flags) &
-                cpu_to_be32(MLX4_WQE_FMR_AND_BIND_PERM_REMOTE_READ  |
-                            MLX4_WQE_FMR_AND_BIND_PERM_REMOTE_WRITE |
-                            MLX4_WQE_FMR_AND_BIND_PERM_ATOMIC);
-        bseg->flags2 = 0;
-        if (wr->mw->type == IB_MW_TYPE_2)
-                bseg->flags2 |= cpu_to_be32(MLX4_WQE_BIND_TYPE_2);
-        if (wr->bind_info.mw_access_flags & IB_ZERO_BASED)
-                bseg->flags2 |= cpu_to_be32(MLX4_WQE_BIND_ZERO_BASED);
-        bseg->new_rkey = cpu_to_be32(wr->rkey);
-        bseg->lkey = cpu_to_be32(wr->bind_info.mr->lkey);
-        bseg->addr = cpu_to_be64(wr->bind_info.addr);
-        bseg->length = cpu_to_be64(wr->bind_info.length);
-}
-
 static void set_local_inv_seg(struct mlx4_wqe_local_inval_seg *iseg, u32 rkey)
 {
         memset(iseg, 0, sizeof(*iseg));
@@ -2870,13 +2850,6 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
                                 size += sizeof(struct mlx4_wqe_fmr_seg) / 16;
                                 break;
 
-                        case IB_WR_BIND_MW:
-                                ctrl->srcrb_flags |=
-                                        cpu_to_be32(MLX4_WQE_CTRL_STRONG_ORDER);
-                                set_bind_seg(wqe, bind_mw_wr(wr));
-                                wqe  += sizeof(struct mlx4_wqe_bind_seg);
-                                size += sizeof(struct mlx4_wqe_bind_seg) / 16;
-                                break;
                         default:
                                 /* No extra segments required for sends */
                                 break;
diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index 3ce5cfa7a4e0..db2270ad21b2 100644
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -154,9 +154,6 @@ static void handle_good_req(struct ib_wc *wc, struct mlx5_cqe64 *cqe,
                 wc->opcode    = IB_WC_MASKED_FETCH_ADD;
                 wc->byte_len  = 8;
                 break;
-        case MLX5_OPCODE_BIND_MW:
-                wc->opcode    = IB_WC_BIND_MW;
-                break;
         case MLX5_OPCODE_UMR:
                 wc->opcode = get_umr_comp(wq, idx);
                 break;
diff --git a/drivers/infiniband/hw/mthca/mthca_cq.c b/drivers/infiniband/hw/mthca/mthca_cq.c
index 40ba83338155..a6531ffe29a6 100644
--- a/drivers/infiniband/hw/mthca/mthca_cq.c
+++ b/drivers/infiniband/hw/mthca/mthca_cq.c
@@ -608,9 +608,6 @@ static inline int mthca_poll_one(struct mthca_dev *dev,
                         entry->opcode    = IB_WC_FETCH_ADD;
                         entry->byte_len  = MTHCA_ATOMIC_BYTE_LEN;
                         break;
-                case MTHCA_OPCODE_BIND_MW:
-                        entry->opcode    = IB_WC_BIND_MW;
-                        break;
                 default:
                         entry->opcode    = MTHCA_OPCODE_INVALID;
                         break;
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index f76358c39ebb..c8c661ebe3db 100644
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -206,80 +206,6 @@ static int nes_dealloc_mw(struct ib_mw *ibmw)
 }
 
 
-/**
- * nes_bind_mw
- */
-static int nes_bind_mw(struct ib_qp *ibqp, struct ib_mw *ibmw,
-                struct ib_mw_bind *ibmw_bind)
-{
-        u64 u64temp;
-        struct nes_vnic *nesvnic = to_nesvnic(ibqp->device);
-        struct nes_device *nesdev = nesvnic->nesdev;
-        /* struct nes_mr *nesmr = to_nesmw(ibmw); */
-        struct nes_qp *nesqp = to_nesqp(ibqp);
-        struct nes_hw_qp_wqe *wqe;
-        unsigned long flags = 0;
-        u32 head;
-        u32 wqe_misc = 0;
-        u32 qsize;
-
-        if (nesqp->ibqp_state > IB_QPS_RTS)
-                return -EINVAL;
-
-        spin_lock_irqsave(&nesqp->lock, flags);
-
-        head = nesqp->hwqp.sq_head;
-        qsize = nesqp->hwqp.sq_tail;
-
-        /* Check for SQ overflow */
-        if (((head + (2 * qsize) - nesqp->hwqp.sq_tail) % qsize) == (qsize - 1)) {
-                spin_unlock_irqrestore(&nesqp->lock, flags);
-                return -ENOMEM;
-        }
-
-        wqe = &nesqp->hwqp.sq_vbase[head];
-        /* nes_debug(NES_DBG_MR, "processing sq wqe at %p, head = %u.\n", wqe, head); */
-        nes_fill_init_qp_wqe(wqe, nesqp, head);
-        u64temp = ibmw_bind->wr_id;
-        set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX, u64temp);
-        wqe_misc = NES_IWARP_SQ_OP_BIND;
-
-        wqe_misc |= NES_IWARP_SQ_WQE_LOCAL_FENCE;
-
-        if (ibmw_bind->send_flags & IB_SEND_SIGNALED)
-                wqe_misc |= NES_IWARP_SQ_WQE_SIGNALED_COMPL;
-
-        if (ibmw_bind->bind_info.mw_access_flags & IB_ACCESS_REMOTE_WRITE)
-                wqe_misc |= NES_CQP_STAG_RIGHTS_REMOTE_WRITE;
-        if (ibmw_bind->bind_info.mw_access_flags & IB_ACCESS_REMOTE_READ)
-                wqe_misc |= NES_CQP_STAG_RIGHTS_REMOTE_READ;
-
-        set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_MISC_IDX, wqe_misc);
-        set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_MR_IDX,
-                            ibmw_bind->bind_info.mr->lkey);
-        set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_MW_IDX, ibmw->rkey);
-        set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_LENGTH_LOW_IDX,
-                        ibmw_bind->bind_info.length);
-        wqe->wqe_words[NES_IWARP_SQ_BIND_WQE_LENGTH_HIGH_IDX] = 0;
-        u64temp = (u64)ibmw_bind->bind_info.addr;
-        set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_VA_FBO_LOW_IDX, u64temp);
-
-        head++;
-        if (head >= qsize)
-                head = 0;
-
-        nesqp->hwqp.sq_head = head;
-        barrier();
-
-        nes_write32(nesdev->regs+NES_WQE_ALLOC,
-                        (1 << 24) | 0x00800000 | nesqp->hwqp.qp_id);
-
-        spin_unlock_irqrestore(&nesqp->lock, flags);
-
-        return 0;
-}
-
-
 /*
  * nes_alloc_fast_mr
  */
@@ -3892,7 +3818,6 @@ struct nes_ib_device *nes_init_ofa_device(struct net_device *netdev)
         nesibdev->ibdev.dereg_mr = nes_dereg_mr;
         nesibdev->ibdev.alloc_mw = nes_alloc_mw;
         nesibdev->ibdev.dealloc_mw = nes_dealloc_mw;
-        nesibdev->ibdev.bind_mw = nes_bind_mw;
 
         nesibdev->ibdev.alloc_mr = nes_alloc_mr;
         nesibdev->ibdev.map_mr_sg = nes_map_mr_sg;
diff --git a/drivers/staging/rdma/amso1100/c2_cq.c b/drivers/staging/rdma/amso1100/c2_cq.c
index 3ef881f2da0f..7ad0c082485a 100644
--- a/drivers/staging/rdma/amso1100/c2_cq.c
+++ b/drivers/staging/rdma/amso1100/c2_cq.c
@@ -173,9 +173,6 @@ static inline int c2_poll_one(struct c2_dev *c2dev,
         case C2_WR_TYPE_RDMA_READ:
                 entry->opcode = IB_WC_RDMA_READ;
                 break;
-        case C2_WR_TYPE_BIND_MW:
-                entry->opcode = IB_WC_BIND_MW;
-                break;
         case C2_WR_TYPE_RECV:
                 entry->byte_len = be32_to_cpu(ce->bytes_rcvd);
                 entry->opcode = IB_WC_RECV;
diff --git a/drivers/staging/rdma/ehca/ehca_iverbs.h b/drivers/staging/rdma/ehca/ehca_iverbs.h
index 17ab33b76882..cca5933fcda6 100644
--- a/drivers/staging/rdma/ehca/ehca_iverbs.h
+++ b/drivers/staging/rdma/ehca/ehca_iverbs.h
@@ -88,9 +88,6 @@ int ehca_dereg_mr(struct ib_mr *mr);
 
 struct ib_mw *ehca_alloc_mw(struct ib_pd *pd, enum ib_mw_type type);
 
-int ehca_bind_mw(struct ib_qp *qp, struct ib_mw *mw,
-                 struct ib_mw_bind *mw_bind);
-
 int ehca_dealloc_mw(struct ib_mw *mw);
 
 struct ib_fmr *ehca_alloc_fmr(struct ib_pd *pd,
diff --git a/drivers/staging/rdma/ehca/ehca_main.c b/drivers/staging/rdma/ehca/ehca_main.c
index 8e920a31d5e7..963274ee652a 100644
--- a/drivers/staging/rdma/ehca/ehca_main.c
+++ b/drivers/staging/rdma/ehca/ehca_main.c
@@ -515,7 +515,6 @@ static int ehca_init_device(struct ehca_shca *shca)
         shca->ib_device.reg_user_mr         = ehca_reg_user_mr;
         shca->ib_device.dereg_mr            = ehca_dereg_mr;
         shca->ib_device.alloc_mw            = ehca_alloc_mw;
-        shca->ib_device.bind_mw             = ehca_bind_mw;
         shca->ib_device.dealloc_mw          = ehca_dealloc_mw;
         shca->ib_device.alloc_fmr           = ehca_alloc_fmr;
         shca->ib_device.map_phys_fmr        = ehca_map_phys_fmr;
diff --git a/drivers/staging/rdma/ehca/ehca_mrmw.c b/drivers/staging/rdma/ehca/ehca_mrmw.c
index 1c1a8dd09ac5..c6e324522566 100644
--- a/drivers/staging/rdma/ehca/ehca_mrmw.c
+++ b/drivers/staging/rdma/ehca/ehca_mrmw.c
@@ -413,18 +413,6 @@ alloc_mw_exit0:
 
 /*----------------------------------------------------------------------*/
 
-int ehca_bind_mw(struct ib_qp *qp,
-                 struct ib_mw *mw,
-                 struct ib_mw_bind *mw_bind)
-{
-        /* TODO: not supported up to now */
-        ehca_gen_err("bind MW currently not supported by HCAD");
-
-        return -EPERM;
-} /* end ehca_bind_mw() */
-
-/*----------------------------------------------------------------------*/
-
 int ehca_dealloc_mw(struct ib_mw *mw)
 {
         u64 h_ret;
diff --git a/drivers/staging/rdma/ehca/ehca_reqs.c b/drivers/staging/rdma/ehca/ehca_reqs.c
index 10e2074384f5..11813b880e16 100644
--- a/drivers/staging/rdma/ehca/ehca_reqs.c
+++ b/drivers/staging/rdma/ehca/ehca_reqs.c
@@ -614,7 +614,6 @@ int ehca_post_srq_recv(struct ib_srq *srq,
 static const u8 ib_wc_opcode[255] = {
         [0x01] = IB_WC_RECV+1,
         [0x02] = IB_WC_RECV_RDMA_WITH_IMM+1,
-        [0x04] = IB_WC_BIND_MW+1,
         [0x08] = IB_WC_FETCH_ADD+1,
         [0x10] = IB_WC_COMP_SWAP+1,
         [0x20] = IB_WC_RDMA_WRITE+1,
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 86970f3e90b4..177844265c98 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -812,7 +812,6 @@ enum ib_wc_opcode {
         IB_WC_RDMA_READ,
         IB_WC_COMP_SWAP,
         IB_WC_FETCH_ADD,
-        IB_WC_BIND_MW,
         IB_WC_LSO,
         IB_WC_LOCAL_INV,
         IB_WC_REG_MR,
@@ -1110,7 +1109,6 @@ enum ib_wr_opcode {
         IB_WR_REG_MR,
         IB_WR_MASKED_ATOMIC_CMP_AND_SWP,
         IB_WR_MASKED_ATOMIC_FETCH_AND_ADD,
-        IB_WR_BIND_MW,
         IB_WR_REG_SIG_MR,
         /* reserve values for low level drivers' internal use.
          * These values will not be used at all in the ib core layer.
@@ -1145,23 +1143,6 @@ struct ib_sge {
         u32     lkey;
 };
 
-/**
- * struct ib_mw_bind_info - Parameters for a memory window bind operation.
- * @mr: A memory region to bind the memory window to.
- * @addr: The address where the memory window should begin.
- * @length: The length of the memory window, in bytes.
- * @mw_access_flags: Access flags from enum ib_access_flags for the window.
- *
- * This struct contains the shared parameters for type 1 and type 2
- * memory window bind operations.
- */
-struct ib_mw_bind_info {
-        struct ib_mr   *mr;
-        u64             addr;
-        u64             length;
-        int             mw_access_flags;
-};
-
 struct ib_cqe {
         void (*done)(struct ib_cq *cq, struct ib_wc *wc);
 };
@@ -1237,19 +1218,6 @@ static inline struct ib_reg_wr *reg_wr(struct ib_send_wr *wr)
         return container_of(wr, struct ib_reg_wr, wr);
 }
 
-struct ib_bind_mw_wr {
-        struct ib_send_wr       wr;
-        struct ib_mw            *mw;
-        /* The new rkey for the memory window. */
-        u32                     rkey;
-        struct ib_mw_bind_info  bind_info;
-};
-
-static inline struct ib_bind_mw_wr *bind_mw_wr(struct ib_send_wr *wr)
-{
-        return container_of(wr, struct ib_bind_mw_wr, wr);
-}
-
 struct ib_sig_handover_wr {
         struct ib_send_wr       wr;
         struct ib_sig_attrs    *sig_attrs;
@@ -1299,18 +1267,6 @@ enum ib_mr_rereg_flags {
         IB_MR_REREG_SUPPORTED   = ((IB_MR_REREG_ACCESS << 1) - 1)
 };
 
-/**
- * struct ib_mw_bind - Parameters for a type 1 memory window bind operation.
- * @wr_id:      Work request id.
- * @send_flags: Flags from ib_send_flags enum.
- * @bind_info:  More parameters of the bind operation.
- */
-struct ib_mw_bind {
-        u64                    wr_id;
-        int                    send_flags;
-        struct ib_mw_bind_info bind_info;
-};
-
 struct ib_fmr_attr {
         int     max_pages;
         int     max_maps;
@@ -1845,9 +1801,6 @@ struct ib_device {
                                                 int sg_nents);
         struct ib_mw *             (*alloc_mw)(struct ib_pd *pd,
                                                enum ib_mw_type type);
-        int                        (*bind_mw)(struct ib_qp *qp,
-                                              struct ib_mw *mw,
-                                              struct ib_mw_bind *mw_bind);
         int                        (*dealloc_mw)(struct ib_mw *mw);
         struct ib_fmr *            (*alloc_fmr)(struct ib_pd *pd,
                                                 int mr_access_flags,
@@ -2976,42 +2929,6 @@ static inline u32 ib_inc_rkey(u32 rkey)
 }
 
 /**
- * ib_alloc_mw - Allocates a memory window.
- * @pd: The protection domain associated with the memory window.
- * @type: The type of the memory window (1 or 2).
- */
-struct ib_mw *ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type);
-
-/**
- * ib_bind_mw - Posts a work request to the send queue of the specified
- *   QP, which binds the memory window to the given address range and
- *   remote access attributes.
- * @qp: QP to post the bind work request on.
- * @mw: The memory window to bind.
- * @mw_bind: Specifies information about the memory window, including
- *   its address range, remote access rights, and associated memory region.
- *
- * If there is no immediate error, the function will update the rkey member
- * of the mw parameter to its new value. The bind operation can still fail
- * asynchronously.
- */
-static inline int ib_bind_mw(struct ib_qp *qp,
-                             struct ib_mw *mw,
-                             struct ib_mw_bind *mw_bind)
-{
-        /* XXX reference counting in corresponding MR? */
-        return mw->device->bind_mw ?
-                mw->device->bind_mw(qp, mw, mw_bind) :
-                -ENOSYS;
-}
-
-/**
- * ib_dealloc_mw - Deallocates a memory window.
- * @mw: The memory window to deallocate.
- */
-int ib_dealloc_mw(struct ib_mw *mw);
-
-/**
  * ib_alloc_fmr - Allocates a unmapped fast memory region.
  * @pd: The protection domain associated with the unmapped region.
  * @mr_access_flags: Specifies the memory access rights.