X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Finfiniband%2Fhw%2Fmthca%2Fmthca_provider.c;h=1c05486c3c68b6171077b9f57fb345c2717403b5;hb=f4fd0b224d60044d2da5ca02f8f2b5150c1d8731;hp=bbdfcbe6bade6e461e1e5198af18638431aed32f;hpb=24d4281be0598d2d4ab9a2ffb1b78f5af0ffaddf;p=safe%2Fjmp%2Flinux-2.6

diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index bbdfcbe..1c05486 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -1,7 +1,9 @@
 /*
  * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
  * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
- * Copyright (c) 2005 Cisco Systems. All rights reserved.
+ * Copyright (c) 2005, 2006 Cisco Systems.  All rights reserved.
+ * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
@@ -31,10 +33,11 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  *
- * $Id: mthca_provider.c 1397 2004-12-28 05:09:00Z roland $
+ * $Id: mthca_provider.c 4859 2006-01-09 21:55:10Z roland $
  */
 
-#include <ib_smi.h>
+#include <rdma/ib_smi.h>
+#include <rdma/ib_user_verbs.h>
 #include <linux/mm.h>
 
 #include "mthca_dev.h"
@@ -42,6 +45,14 @@
 #include "mthca_user.h"
 #include "mthca_memfree.h"
 
+static void init_query_mad(struct ib_smp *mad)
+{
+	mad->base_version  = 1;
+	mad->mgmt_class    = IB_MGMT_CLASS_SUBN_LID_ROUTED;
+	mad->class_version = 1;
+	mad->method    	   = IB_MGMT_METHOD_GET;
+}
+
 static int mthca_query_device(struct ib_device *ibdev,
 			      struct ib_device_attr *props)
 {
@@ -52,7 +63,7 @@ static int mthca_query_device(struct ib_device *ibdev,
 
 	u8 status;
 
-	in_mad  = kmalloc(sizeof *in_mad, GFP_KERNEL);
+	in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 	out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 	if (!in_mad || !out_mad)
 		goto out;
@@ -61,12 +72,8 @@ static int mthca_query_device(struct ib_device *ibdev,
 
 	props->fw_ver              = mdev->fw_ver;
 
-	memset(in_mad, 0, sizeof *in_mad);
-	in_mad->base_version       = 1;
-	in_mad->mgmt_class     	   = IB_MGMT_CLASS_SUBN_LID_ROUTED;
-	in_mad->class_version  	   = 1;
-	in_mad->method         	   = IB_MGMT_METHOD_GET;
-	in_mad->attr_id   	   = IB_SMP_ATTR_NODE_INFO;
+	init_query_mad(in_mad);
+	in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
 
 	err = mthca_MAD_IFC(mdev, 1, 1,
 			    1, NULL, NULL, in_mad, out_mad,
@@ -79,24 +86,45 @@ static int mthca_query_device(struct ib_device *ibdev,
 	}
 
 	props->device_cap_flags    = mdev->device_cap_flags;
-	props->vendor_id           = be32_to_cpup((u32 *) (out_mad->data + 36)) &
+	props->vendor_id           = be32_to_cpup((__be32 *) (out_mad->data + 36)) &
 		0xffffff;
-	props->vendor_part_id      = be16_to_cpup((u16 *) (out_mad->data + 30));
-	props->hw_ver              = be16_to_cpup((u16 *) (out_mad->data + 32));
+	props->vendor_part_id      = be16_to_cpup((__be16 *) (out_mad->data + 30));
+	props->hw_ver              = be32_to_cpup((__be32 *) (out_mad->data + 32));
 	memcpy(&props->sys_image_guid, out_mad->data +  4, 8);
-	memcpy(&props->node_guid,      out_mad->data + 12, 8);
 
 	props->max_mr_size         = ~0ull;
+	props->page_size_cap       = mdev->limits.page_size_cap;
 	props->max_qp              = mdev->limits.num_qps - mdev->limits.reserved_qps;
-	props->max_qp_wr           = 0xffff;
+	props->max_qp_wr           = mdev->limits.max_wqes;
 	props->max_sge             = mdev->limits.max_sg;
 	props->max_cq              = mdev->limits.num_cqs - mdev->limits.reserved_cqs;
-	props->max_cqe             = 0xffff;
+	props->max_cqe             = mdev->limits.max_cqes;
 	props->max_mr              = mdev->limits.num_mpts - mdev->limits.reserved_mrws;
 	props->max_pd              = mdev->limits.num_pds - mdev->limits.reserved_pds;
 	props->max_qp_rd_atom      = 1 << mdev->qp_table.rdb_shift;
-	props->max_qp_init_rd_atom = 1 << mdev->qp_table.rdb_shift;
+	props->max_qp_init_rd_atom = mdev->limits.max_qp_init_rdma;
+	props->max_res_rd_atom     = props->max_qp_rd_atom * props->max_qp;
+	props->max_srq             = mdev->limits.num_srqs - mdev->limits.reserved_srqs;
+	props->max_srq_wr          = mdev->limits.max_srq_wqes;
+	props->max_srq_sge         = mdev->limits.max_srq_sge;
 	props->local_ca_ack_delay  = mdev->limits.local_ca_ack_delay;
+	props->atomic_cap          = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ?
+					IB_ATOMIC_HCA : IB_ATOMIC_NONE;
+	props->max_pkeys           = mdev->limits.pkey_table_len;
+	props->max_mcast_grp       = mdev->limits.num_mgms + mdev->limits.num_amgms;
+	props->max_mcast_qp_attach = MTHCA_QP_PER_MGM;
+	props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
+					   props->max_mcast_grp;
+	/*
+	 * If Sinai memory key optimization is being used, then only
+	 * the 8-bit key portion will change.  For other HCAs, the
+	 * unused index bits will also be used for FMR remapping.
+	 */
+	if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
+		props->max_map_per_fmr = 255;
+	else
+		props->max_map_per_fmr =
+			(1 << (32 - ilog2(mdev->limits.num_mpts))) - 1;
 
 	err = 0;
  out:
@@ -113,18 +141,16 @@ static int mthca_query_port(struct ib_device *ibdev,
 	int err = -ENOMEM;
 	u8 status;
 
-	in_mad  = kmalloc(sizeof *in_mad, GFP_KERNEL);
+	in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 	out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 	if (!in_mad || !out_mad)
 		goto out;
 
-	memset(in_mad, 0, sizeof *in_mad);
-	in_mad->base_version       = 1;
-	in_mad->mgmt_class     	   = IB_MGMT_CLASS_SUBN_LID_ROUTED;
-	in_mad->class_version  	   = 1;
-	in_mad->method         	   = IB_MGMT_METHOD_GET;
-	in_mad->attr_id   	   = IB_SMP_ATTR_PORT_INFO;
-	in_mad->attr_mod           = cpu_to_be32(port);
+	memset(props, 0, sizeof *props);
+
+	init_query_mad(in_mad);
+	in_mad->attr_id  = IB_SMP_ATTR_PORT_INFO;
+	in_mad->attr_mod = cpu_to_be32(port);
 
 	err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
 			    port, NULL, NULL, in_mad, out_mad,
@@ -136,18 +162,25 @@ static int mthca_query_port(struct ib_device *ibdev,
 		goto out;
 	}
 
-	props->lid               = be16_to_cpup((u16 *) (out_mad->data + 16));
+	props->lid               = be16_to_cpup((__be16 *) (out_mad->data + 16));
 	props->lmc               = out_mad->data[34] & 0x7;
-	props->sm_lid            = be16_to_cpup((u16 *) (out_mad->data + 18));
+	props->sm_lid            = be16_to_cpup((__be16 *) (out_mad->data + 18));
 	props->sm_sl             = out_mad->data[36] & 0xf;
 	props->state             = out_mad->data[32] & 0xf;
 	props->phys_state        = out_mad->data[33] >> 4;
-	props->port_cap_flags    = be32_to_cpup((u32 *) (out_mad->data + 20));
+	props->port_cap_flags    = be32_to_cpup((__be32 *) (out_mad->data + 20));
 	props->gid_tbl_len       = to_mdev(ibdev)->limits.gid_table_len;
+	props->max_msg_sz        = 0x80000000;
 	props->pkey_tbl_len      = to_mdev(ibdev)->limits.pkey_table_len;
-	props->qkey_viol_cntr    = be16_to_cpup((u16 *) (out_mad->data + 48));
+	props->bad_pkey_cntr     = be16_to_cpup((__be16 *) (out_mad->data + 46));
+	props->qkey_viol_cntr    = be16_to_cpup((__be16 *) (out_mad->data + 48));
 	props->active_width      = out_mad->data[31] & 0xf;
 	props->active_speed      = out_mad->data[35] >> 4;
+	props->max_mtu           = out_mad->data[41] & 0xf;
+	props->active_mtu        = out_mad->data[36] >> 4;
+	props->subnet_timeout    = out_mad->data[51] & 0x1f;
+	props->max_vl_num        = out_mad->data[37] >> 4;
+	props->init_type_reply   = out_mad->data[41] >> 4;
 
  out:
 	kfree(in_mad);
@@ -155,6 +188,23 @@ static int mthca_query_port(struct ib_device *ibdev,
 	return err;
 }
 
+static int mthca_modify_device(struct ib_device *ibdev,
+			       int mask,
+			       struct ib_device_modify *props)
+{
+	if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
+		return -EOPNOTSUPP;
+
+	if (mask & IB_DEVICE_MODIFY_NODE_DESC) {
+		if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex))
+			return -ERESTARTSYS;
+		memcpy(ibdev->node_desc, props->node_desc, 64);
+		mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
+	}
+
+	return 0;
+}
+
 static int mthca_modify_port(struct ib_device *ibdev,
 			     u8 port, int port_modify_mask,
 			     struct ib_port_modify *props)
@@ -164,7 +214,7 @@ static int mthca_modify_port(struct ib_device *ibdev,
 	int err;
 	u8 status;
 
-	if (down_interruptible(&to_mdev(ibdev)->cap_mask_mutex))
+	if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex))
 		return -ERESTARTSYS;
 
 	err = mthca_query_port(ibdev, port, &attr);
@@ -186,7 +236,7 @@ static int mthca_modify_port(struct ib_device *ibdev,
 	}
 
 out:
-	up(&to_mdev(ibdev)->cap_mask_mutex);
+	mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
 	return err;
 }
 
@@ -198,18 +248,14 @@ static int mthca_query_pkey(struct ib_device *ibdev,
 	int err = -ENOMEM;
 	u8 status;
 
-	in_mad  = kmalloc(sizeof *in_mad, GFP_KERNEL);
+	in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 	out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 	if (!in_mad || !out_mad)
 		goto out;
 
-	memset(in_mad, 0, sizeof *in_mad);
-	in_mad->base_version       = 1;
-	in_mad->mgmt_class     	   = IB_MGMT_CLASS_SUBN_LID_ROUTED;
-	in_mad->class_version  	   = 1;
-	in_mad->method         	   = IB_MGMT_METHOD_GET;
-	in_mad->attr_id   	   = IB_SMP_ATTR_PKEY_TABLE;
-	in_mad->attr_mod           = cpu_to_be32(index / 32);
+	init_query_mad(in_mad);
+	in_mad->attr_id  = IB_SMP_ATTR_PKEY_TABLE;
+	in_mad->attr_mod = cpu_to_be32(index / 32);
 
 	err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
 			    port, NULL, NULL, in_mad, out_mad,
@@ -221,7 +267,7 @@ static int mthca_query_pkey(struct ib_device *ibdev,
 		goto out;
 	}
 
-	*pkey = be16_to_cpu(((u16 *) out_mad->data)[index % 32]);
+	*pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
 
  out:
 	kfree(in_mad);
@@ -237,18 +283,14 @@ static int mthca_query_gid(struct ib_device *ibdev, u8 port,
 	int err = -ENOMEM;
 	u8 status;
 
-	in_mad  = kmalloc(sizeof *in_mad, GFP_KERNEL);
+	in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 	out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 	if (!in_mad || !out_mad)
 		goto out;
 
-	memset(in_mad, 0, sizeof *in_mad);
-	in_mad->base_version       = 1;
-	in_mad->mgmt_class     	   = IB_MGMT_CLASS_SUBN_LID_ROUTED;
-	in_mad->class_version  	   = 1;
-	in_mad->method         	   = IB_MGMT_METHOD_GET;
-	in_mad->attr_id   	   = IB_SMP_ATTR_PORT_INFO;
-	in_mad->attr_mod           = cpu_to_be32(port);
+	init_query_mad(in_mad);
+	in_mad->attr_id  = IB_SMP_ATTR_PORT_INFO;
+	in_mad->attr_mod = cpu_to_be32(port);
 
 	err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
 			    port, NULL, NULL, in_mad, out_mad,
@@ -262,13 +304,9 @@ static int mthca_query_gid(struct ib_device *ibdev, u8 port,
 
 	memcpy(gid->raw, out_mad->data + 8, 8);
 
-	memset(in_mad, 0, sizeof *in_mad);
-	in_mad->base_version       = 1;
-	in_mad->mgmt_class     	   = IB_MGMT_CLASS_SUBN_LID_ROUTED;
-	in_mad->class_version  	   = 1;
-	in_mad->method         	   = IB_MGMT_METHOD_GET;
-	in_mad->attr_id   	   = IB_SMP_ATTR_GUID_INFO;
-	in_mad->attr_mod           = cpu_to_be32(index / 8);
+	init_query_mad(in_mad);
+	in_mad->attr_id  = IB_SMP_ATTR_GUID_INFO;
+	in_mad->attr_mod = cpu_to_be32(index / 8);
 
 	err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
 			    port, NULL, NULL, in_mad, out_mad,
@@ -280,7 +318,7 @@ static int mthca_query_gid(struct ib_device *ibdev, u8 port,
 		goto out;
 	}
 
-	memcpy(gid->raw + 8, out_mad->data + (index % 8) * 16, 8);
+	memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
 
  out:
 	kfree(in_mad);
@@ -349,9 +387,9 @@ static int mthca_mmap_uar(struct ib_ucontext *context,
 
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 
-	if (remap_pfn_range(vma, vma->vm_start,
-			    to_mucontext(context)->uar.pfn,
-			    PAGE_SIZE, vma->vm_page_prot))
+	if (io_remap_pfn_range(vma, vma->vm_start,
+			       to_mucontext(context)->uar.pfn,
+			       PAGE_SIZE, vma->vm_page_prot))
 		return -EAGAIN;
 
 	return 0;
@@ -420,10 +458,84 @@ static int mthca_ah_destroy(struct ib_ah *ah)
 	return 0;
 }
 
+static struct ib_srq *mthca_create_srq(struct ib_pd *pd,
+				       struct ib_srq_init_attr *init_attr,
+				       struct ib_udata *udata)
+{
+	struct mthca_create_srq ucmd;
+	struct mthca_ucontext *context = NULL;
+	struct mthca_srq *srq;
+	int err;
+
+	srq = kmalloc(sizeof *srq, GFP_KERNEL);
+	if (!srq)
+		return ERR_PTR(-ENOMEM);
+
+	if (pd->uobject) {
+		context = to_mucontext(pd->uobject->context);
+
+		if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) {
+			err = -EFAULT;
+			goto err_free;
+		}
+
+		err = mthca_map_user_db(to_mdev(pd->device), &context->uar,
+					context->db_tab, ucmd.db_index,
+					ucmd.db_page);
+
+		if (err)
+			goto err_free;
+
+		srq->mr.ibmr.lkey = ucmd.lkey;
+		srq->db_index     = ucmd.db_index;
+	}
+
+	err = mthca_alloc_srq(to_mdev(pd->device), to_mpd(pd),
+			      &init_attr->attr, srq);
+
+	if (err && pd->uobject)
+		mthca_unmap_user_db(to_mdev(pd->device), &context->uar,
+				    context->db_tab, ucmd.db_index);
+
+	if (err)
+		goto err_free;
+
+	if (context && ib_copy_to_udata(udata, &srq->srqn, sizeof (__u32))) {
+		mthca_free_srq(to_mdev(pd->device), srq);
+		err = -EFAULT;
+		goto err_free;
+	}
+
+	return &srq->ibsrq;
+
+err_free:
+	kfree(srq);
+
+	return ERR_PTR(err);
+}
+
+static int mthca_destroy_srq(struct ib_srq *srq)
+{
+	struct mthca_ucontext *context;
+
+	if (srq->uobject) {
+		context = to_mucontext(srq->uobject->context);
+
+		mthca_unmap_user_db(to_mdev(srq->device), &context->uar,
+				    context->db_tab, to_msrq(srq)->db_index);
+	}
+
+	mthca_free_srq(to_mdev(srq->device), to_msrq(srq));
+	kfree(srq);
+
+	return 0;
+}
+
 static struct ib_qp *mthca_create_qp(struct ib_pd *pd,
 				     struct ib_qp_init_attr *init_attr,
 				     struct ib_udata *udata)
 {
+	struct mthca_create_qp ucmd;
 	struct mthca_qp *qp;
 	int err;
 
@@ -432,41 +544,84 @@ static struct ib_qp *mthca_create_qp(struct ib_pd *pd,
 	case IB_QPT_UC:
 	case IB_QPT_UD:
 	{
+		struct mthca_ucontext *context;
+
 		qp = kmalloc(sizeof *qp, GFP_KERNEL);
 		if (!qp)
 			return ERR_PTR(-ENOMEM);
 
-		qp->sq.max    = init_attr->cap.max_send_wr;
-		qp->rq.max    = init_attr->cap.max_recv_wr;
-		qp->sq.max_gs = init_attr->cap.max_send_sge;
-		qp->rq.max_gs = init_attr->cap.max_recv_sge;
+		if (pd->uobject) {
+			context = to_mucontext(pd->uobject->context);
+
+			if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) {
+				kfree(qp);
+				return ERR_PTR(-EFAULT);
+			}
+
+			err = mthca_map_user_db(to_mdev(pd->device), &context->uar,
+						context->db_tab,
+						ucmd.sq_db_index, ucmd.sq_db_page);
+			if (err) {
+				kfree(qp);
+				return ERR_PTR(err);
+			}
+
+			err = mthca_map_user_db(to_mdev(pd->device), &context->uar,
+						context->db_tab,
+						ucmd.rq_db_index, ucmd.rq_db_page);
+			if (err) {
+				mthca_unmap_user_db(to_mdev(pd->device),
+						    &context->uar,
+						    context->db_tab,
+						    ucmd.sq_db_index);
+				kfree(qp);
+				return ERR_PTR(err);
+			}
+
+			qp->mr.ibmr.lkey = ucmd.lkey;
+			qp->sq.db_index  = ucmd.sq_db_index;
+			qp->rq.db_index  = ucmd.rq_db_index;
+		}
 
 		err = mthca_alloc_qp(to_mdev(pd->device), to_mpd(pd),
 				     to_mcq(init_attr->send_cq),
 				     to_mcq(init_attr->recv_cq),
 				     init_attr->qp_type, init_attr->sq_sig_type,
-				     qp);
+				     &init_attr->cap, qp);
+
+		if (err && pd->uobject) {
+			context = to_mucontext(pd->uobject->context);
+
+			mthca_unmap_user_db(to_mdev(pd->device),
+					    &context->uar,
+					    context->db_tab,
+					    ucmd.sq_db_index);
+			mthca_unmap_user_db(to_mdev(pd->device),
+					    &context->uar,
+					    context->db_tab,
+					    ucmd.rq_db_index);
+		}
+
 		qp->ibqp.qp_num = qp->qpn;
 		break;
 	}
 	case IB_QPT_SMI:
 	case IB_QPT_GSI:
 	{
+		/* Don't allow userspace to create special QPs */
+		if (pd->uobject)
+			return ERR_PTR(-EINVAL);
+
 		qp = kmalloc(sizeof (struct mthca_sqp), GFP_KERNEL);
 		if (!qp)
 			return ERR_PTR(-ENOMEM);
 
-		qp->sq.max    = init_attr->cap.max_send_wr;
-		qp->rq.max    = init_attr->cap.max_recv_wr;
-		qp->sq.max_gs = init_attr->cap.max_send_sge;
-		qp->rq.max_gs = init_attr->cap.max_recv_sge;
-
 		qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1;
 
 		err = mthca_alloc_sqp(to_mdev(pd->device), to_mpd(pd),
 				      to_mcq(init_attr->send_cq),
 				      to_mcq(init_attr->recv_cq),
-				      init_attr->sq_sig_type,
+				      init_attr->sq_sig_type, &init_attr->cap,
 				      qp->ibqp.qp_num, init_attr->port_num,
 				      to_msqp(qp));
 		break;
@@ -481,44 +636,245 @@ static struct ib_qp *mthca_create_qp(struct ib_pd *pd,
 		return ERR_PTR(err);
 	}
 
-        init_attr->cap.max_inline_data = 0;
+	init_attr->cap.max_send_wr     = qp->sq.max;
+	init_attr->cap.max_recv_wr     = qp->rq.max;
+	init_attr->cap.max_send_sge    = qp->sq.max_gs;
+	init_attr->cap.max_recv_sge    = qp->rq.max_gs;
+	init_attr->cap.max_inline_data = qp->max_inline_data;
 
 	return &qp->ibqp;
 }
 
 static int mthca_destroy_qp(struct ib_qp *qp)
 {
+	if (qp->uobject) {
+		mthca_unmap_user_db(to_mdev(qp->device),
+				    &to_mucontext(qp->uobject->context)->uar,
+				    to_mucontext(qp->uobject->context)->db_tab,
+				    to_mqp(qp)->sq.db_index);
+		mthca_unmap_user_db(to_mdev(qp->device),
+				    &to_mucontext(qp->uobject->context)->uar,
+				    to_mucontext(qp->uobject->context)->db_tab,
+				    to_mqp(qp)->rq.db_index);
+	}
 	mthca_free_qp(to_mdev(qp->device), to_mqp(qp));
 	kfree(qp);
 	return 0;
 }
 
 static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries,
+				     int comp_vector,
 				     struct ib_ucontext *context,
 				     struct ib_udata *udata)
 {
+	struct mthca_create_cq ucmd;
 	struct mthca_cq *cq;
 	int nent;
 	int err;
 
+	if (entries < 1 || entries > to_mdev(ibdev)->limits.max_cqes)
+		return ERR_PTR(-EINVAL);
+
+	if (context) {
+		if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd))
+			return ERR_PTR(-EFAULT);
+
+		err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar,
+					to_mucontext(context)->db_tab,
+					ucmd.set_db_index, ucmd.set_db_page);
+		if (err)
+			return ERR_PTR(err);
+
+		err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar,
+					to_mucontext(context)->db_tab,
+					ucmd.arm_db_index, ucmd.arm_db_page);
+		if (err)
+			goto err_unmap_set;
+	}
+
 	cq = kmalloc(sizeof *cq, GFP_KERNEL);
-	if (!cq)
-		return ERR_PTR(-ENOMEM);
+	if (!cq) {
+		err = -ENOMEM;
+		goto err_unmap_arm;
+	}
+
+	if (context) {
+		cq->buf.mr.ibmr.lkey = ucmd.lkey;
+		cq->set_ci_db_index  = ucmd.set_db_index;
+		cq->arm_db_index     = ucmd.arm_db_index;
+	}
 
 	for (nent = 1; nent <= entries; nent <<= 1)
 		; /* nothing */
 
-	err = mthca_init_cq(to_mdev(ibdev), nent, cq);
-	if (err) {
-		kfree(cq);
-		cq = ERR_PTR(err);
+	err = mthca_init_cq(to_mdev(ibdev), nent,
+			    context ? to_mucontext(context) : NULL,
+			    context ? ucmd.pdn : to_mdev(ibdev)->driver_pd.pd_num,
+			    cq);
+	if (err)
+		goto err_free;
+
+	if (context && ib_copy_to_udata(udata, &cq->cqn, sizeof (__u32))) {
+		mthca_free_cq(to_mdev(ibdev), cq);
+		goto err_free;
 	}
 
+	cq->resize_buf = NULL;
+
 	return &cq->ibcq;
+
+err_free:
+	kfree(cq);
+
+err_unmap_arm:
+	if (context)
+		mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar,
+				    to_mucontext(context)->db_tab, ucmd.arm_db_index);
+
+err_unmap_set:
+	if (context)
+		mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar,
+				    to_mucontext(context)->db_tab, ucmd.set_db_index);
+
+	return ERR_PTR(err);
+}
+
+static int mthca_alloc_resize_buf(struct mthca_dev *dev, struct mthca_cq *cq,
+				  int entries)
+{
+	int ret;
+
+	spin_lock_irq(&cq->lock);
+	if (cq->resize_buf) {
+		ret = -EBUSY;
+		goto unlock;
+	}
+
+	cq->resize_buf = kmalloc(sizeof *cq->resize_buf, GFP_ATOMIC);
+	if (!cq->resize_buf) {
+		ret = -ENOMEM;
+		goto unlock;
+	}
+
+	cq->resize_buf->state = CQ_RESIZE_ALLOC;
+
+	ret = 0;
+
+unlock:
+	spin_unlock_irq(&cq->lock);
+
+	if (ret)
+		return ret;
+
+	ret = mthca_alloc_cq_buf(dev, &cq->resize_buf->buf, entries);
+	if (ret) {
+		spin_lock_irq(&cq->lock);
+		kfree(cq->resize_buf);
+		cq->resize_buf = NULL;
+		spin_unlock_irq(&cq->lock);
+		return ret;
+	}
+
+	cq->resize_buf->cqe = entries - 1;
+
+	spin_lock_irq(&cq->lock);
+	cq->resize_buf->state = CQ_RESIZE_READY;
+	spin_unlock_irq(&cq->lock);
+
+	return 0;
+}
+
+static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
+{
+	struct mthca_dev *dev = to_mdev(ibcq->device);
+	struct mthca_cq *cq = to_mcq(ibcq);
+	struct mthca_resize_cq ucmd;
+	u32 lkey;
+	u8 status;
+	int ret;
+
+	if (entries < 1 || entries > dev->limits.max_cqes)
+		return -EINVAL;
+
+	mutex_lock(&cq->mutex);
+
+	entries = roundup_pow_of_two(entries + 1);
+	if (entries == ibcq->cqe + 1) {
+		ret = 0;
+		goto out;
+	}
+
+	if (cq->is_kernel) {
+		ret = mthca_alloc_resize_buf(dev, cq, entries);
+		if (ret)
+			goto out;
+		lkey = cq->resize_buf->buf.mr.ibmr.lkey;
+	} else {
+		if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) {
+			ret = -EFAULT;
+			goto out;
+		}
+		lkey = ucmd.lkey;
+	}
+
+	ret = mthca_RESIZE_CQ(dev, cq->cqn, lkey, ilog2(entries), &status);
+	if (status)
+		ret = -EINVAL;
+
+	if (ret) {
+		if (cq->resize_buf) {
+			mthca_free_cq_buf(dev, &cq->resize_buf->buf,
+					  cq->resize_buf->cqe);
+			kfree(cq->resize_buf);
+			spin_lock_irq(&cq->lock);
+			cq->resize_buf = NULL;
+			spin_unlock_irq(&cq->lock);
+		}
+		goto out;
+	}
+
+	if (cq->is_kernel) {
+		struct mthca_cq_buf tbuf;
+		int tcqe;
+
+		spin_lock_irq(&cq->lock);
+		if (cq->resize_buf->state == CQ_RESIZE_READY) {
+			mthca_cq_resize_copy_cqes(cq);
+			tbuf         = cq->buf;
+			tcqe         = cq->ibcq.cqe;
+			cq->buf      = cq->resize_buf->buf;
+			cq->ibcq.cqe = cq->resize_buf->cqe;
+		} else {
+			tbuf = cq->resize_buf->buf;
+			tcqe = cq->resize_buf->cqe;
+		}
+
+		kfree(cq->resize_buf);
+		cq->resize_buf = NULL;
+		spin_unlock_irq(&cq->lock);
+
+		mthca_free_cq_buf(dev, &tbuf, tcqe);
+	} else
+		ibcq->cqe = entries - 1;
+
+out:
+	mutex_unlock(&cq->mutex);
+
+	return ret;
 }
 
 static int mthca_destroy_cq(struct ib_cq *cq)
 {
+	if (cq->uobject) {
+		mthca_unmap_user_db(to_mdev(cq->device),
+				    &to_mucontext(cq->uobject->context)->uar,
+				    to_mucontext(cq->uobject->context)->db_tab,
+				    to_mcq(cq)->arm_db_index);
+		mthca_unmap_user_db(to_mdev(cq->device),
+				    &to_mucontext(cq->uobject->context)->uar,
+				    to_mucontext(cq->uobject->context)->db_tab,
+				    to_mcq(cq)->set_ci_db_index);
+	}
 	mthca_free_cq(to_mdev(cq->device), to_mcq(cq));
 	kfree(cq);
 
@@ -574,24 +930,20 @@ static struct ib_mr *mthca_reg_phys_mr(struct ib_pd       *pd,
 	if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK))
 		return ERR_PTR(-EINVAL);
 
-	if (num_phys_buf > 1 &&
-	    ((buffer_list[0].addr + buffer_list[0].size) & ~PAGE_MASK))
-		return ERR_PTR(-EINVAL);
-
 	mask = 0;
 	total_size = 0;
 	for (i = 0; i < num_phys_buf; ++i) {
-		if (i != 0 && buffer_list[i].addr & ~PAGE_MASK)
-			return ERR_PTR(-EINVAL);
-		if (i != 0 && i != num_phys_buf - 1 &&
-		    (buffer_list[i].size & ~PAGE_MASK))
-			return ERR_PTR(-EINVAL);
+		if (i != 0)
+			mask |= buffer_list[i].addr;
+		if (i != num_phys_buf - 1)
+			mask |= buffer_list[i].addr + buffer_list[i].size;
 
 		total_size += buffer_list[i].size;
-		if (i > 0)
-			mask |= buffer_list[i].addr;
 	}
 
+	if (mask & ~PAGE_MASK)
+		return ERR_PTR(-EINVAL);
+
 	/* Find largest page shift we can use to cover buffers */
 	for (shift = PAGE_SHIFT; shift < 31; ++shift)
 		if (num_phys_buf > 1) {
@@ -664,6 +1016,7 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
 	int shift, n, len;
 	int i, j, k;
 	int err = 0;
+	int write_mtt_size;
 
 	shift = ffs(region->page_size) - 1;
 
@@ -689,6 +1042,8 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
 
 	i = n = 0;
 
+	write_mtt_size = min(mthca_write_mtt_size(dev), (int) (PAGE_SIZE / sizeof *pages));
+
 	list_for_each_entry(chunk, &region->chunk_list, list)
 		for (j = 0; j < chunk->nmap; ++j) {
 			len = sg_dma_len(&chunk->page_list[j]) >> shift;
@@ -696,14 +1051,11 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
 				pages[i++] = sg_dma_address(&chunk->page_list[j]) +
 					region->page_size * k;
 				/*
-				 * Be friendly to WRITE_MTT command
-				 * and leave two empty slots for the
-				 * index and reserved fields of the
-				 * mailbox.
+				 * Be friendly to write_mtt and pass it chunks
+				 * of appropriate size.
 				 */
-				if (i == PAGE_SIZE / sizeof (u64) - 2) {
-					err = mthca_write_mtt(dev, mr->mtt,
-							      n, pages, i);
+				if (i == write_mtt_size) {
+					err = mthca_write_mtt(dev, mr->mtt, n, pages, i);
 					if (err)
 						goto mtt_done;
 					n += i;
@@ -820,7 +1172,7 @@ static ssize_t show_rev(struct class_device *cdev, char *buf)
 static ssize_t show_fw_ver(struct class_device *cdev, char *buf)
 {
 	struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev);
-	return sprintf(buf, "%x.%x.%x\n", (int) (dev->fw_ver >> 32),
+	return sprintf(buf, "%d.%d.%d\n", (int) (dev->fw_ver >> 32),
 		       (int) (dev->fw_ver >> 16) & 0xffff,
 		       (int) dev->fw_ver & 0xffff);
 }
@@ -843,30 +1195,109 @@ static ssize_t show_hca(struct class_device *cdev, char *buf)
 	}
 }
 
+static ssize_t show_board(struct class_device *cdev, char *buf)
+{
+	struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev);
+	return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id);
+}
+
 static CLASS_DEVICE_ATTR(hw_rev,   S_IRUGO, show_rev,    NULL);
 static CLASS_DEVICE_ATTR(fw_ver,   S_IRUGO, show_fw_ver, NULL);
 static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca,    NULL);
+static CLASS_DEVICE_ATTR(board_id, S_IRUGO, show_board,  NULL);
 
 static struct class_device_attribute *mthca_class_attributes[] = {
 	&class_device_attr_hw_rev,
 	&class_device_attr_fw_ver,
-	&class_device_attr_hca_type
+	&class_device_attr_hca_type,
+	&class_device_attr_board_id
 };
 
+static int mthca_init_node_data(struct mthca_dev *dev)
+{
+	struct ib_smp *in_mad  = NULL;
+	struct ib_smp *out_mad = NULL;
+	int err = -ENOMEM;
+	u8 status;
+
+	in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
+	out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
+	if (!in_mad || !out_mad)
+		goto out;
+
+	init_query_mad(in_mad);
+	in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
+
+	err = mthca_MAD_IFC(dev, 1, 1,
+			    1, NULL, NULL, in_mad, out_mad,
+			    &status);
+	if (err)
+		goto out;
+	if (status) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	memcpy(dev->ib_dev.node_desc, out_mad->data, 64);
+
+	in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
+
+	err = mthca_MAD_IFC(dev, 1, 1,
+			    1, NULL, NULL, in_mad, out_mad,
+			    &status);
+	if (err)
+		goto out;
+	if (status) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
+
+out:
+	kfree(in_mad);
+	kfree(out_mad);
+	return err;
+}
+
 int mthca_register_device(struct mthca_dev *dev)
 {
 	int ret;
 	int i;
 
+	ret = mthca_init_node_data(dev);
+	if (ret)
+		return ret;
+
 	strlcpy(dev->ib_dev.name, "mthca%d", IB_DEVICE_NAME_MAX);
 	dev->ib_dev.owner                = THIS_MODULE;
 
-	dev->ib_dev.node_type            = IB_NODE_CA;
+	dev->ib_dev.uverbs_abi_ver	 = MTHCA_UVERBS_ABI_VERSION;
+	dev->ib_dev.uverbs_cmd_mask	 =
+		(1ull << IB_USER_VERBS_CMD_GET_CONTEXT)		|
+		(1ull << IB_USER_VERBS_CMD_QUERY_DEVICE)	|
+		(1ull << IB_USER_VERBS_CMD_QUERY_PORT)		|
+		(1ull << IB_USER_VERBS_CMD_ALLOC_PD)		|
+		(1ull << IB_USER_VERBS_CMD_DEALLOC_PD)		|
+		(1ull << IB_USER_VERBS_CMD_REG_MR)		|
+		(1ull << IB_USER_VERBS_CMD_DEREG_MR)		|
+		(1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL)	|
+		(1ull << IB_USER_VERBS_CMD_CREATE_CQ)		|
+		(1ull << IB_USER_VERBS_CMD_RESIZE_CQ)		|
+		(1ull << IB_USER_VERBS_CMD_DESTROY_CQ)		|
+		(1ull << IB_USER_VERBS_CMD_CREATE_QP)		|
+		(1ull << IB_USER_VERBS_CMD_QUERY_QP)		|
+		(1ull << IB_USER_VERBS_CMD_MODIFY_QP)		|
+		(1ull << IB_USER_VERBS_CMD_DESTROY_QP)		|
+		(1ull << IB_USER_VERBS_CMD_ATTACH_MCAST)	|
+		(1ull << IB_USER_VERBS_CMD_DETACH_MCAST);
+	dev->ib_dev.node_type            = RDMA_NODE_IB_CA;
 	dev->ib_dev.phys_port_cnt        = dev->limits.num_ports;
+	dev->ib_dev.num_comp_vectors     = 1;
 	dev->ib_dev.dma_device           = &dev->pdev->dev;
-	dev->ib_dev.class_dev.dev        = &dev->pdev->dev;
 	dev->ib_dev.query_device         = mthca_query_device;
 	dev->ib_dev.query_port           = mthca_query_port;
+	dev->ib_dev.modify_device        = mthca_modify_device;
 	dev->ib_dev.modify_port          = mthca_modify_port;
 	dev->ib_dev.query_pkey           = mthca_query_pkey;
 	dev->ib_dev.query_gid            = mthca_query_gid;
@@ -876,11 +1307,32 @@ int mthca_register_device(struct mthca_dev *dev)
 	dev->ib_dev.alloc_pd             = mthca_alloc_pd;
 	dev->ib_dev.dealloc_pd           = mthca_dealloc_pd;
 	dev->ib_dev.create_ah            = mthca_ah_create;
+	dev->ib_dev.query_ah             = mthca_ah_query;
 	dev->ib_dev.destroy_ah           = mthca_ah_destroy;
+
+	if (dev->mthca_flags & MTHCA_FLAG_SRQ) {
+		dev->ib_dev.create_srq           = mthca_create_srq;
+		dev->ib_dev.modify_srq           = mthca_modify_srq;
+		dev->ib_dev.query_srq            = mthca_query_srq;
+		dev->ib_dev.destroy_srq          = mthca_destroy_srq;
+		dev->ib_dev.uverbs_cmd_mask	|=
+			(1ull << IB_USER_VERBS_CMD_CREATE_SRQ)		|
+			(1ull << IB_USER_VERBS_CMD_MODIFY_SRQ)		|
+			(1ull << IB_USER_VERBS_CMD_QUERY_SRQ)		|
+			(1ull << IB_USER_VERBS_CMD_DESTROY_SRQ);
+
+		if (mthca_is_memfree(dev))
+			dev->ib_dev.post_srq_recv = mthca_arbel_post_srq_recv;
+		else
+			dev->ib_dev.post_srq_recv = mthca_tavor_post_srq_recv;
+	}
+
 	dev->ib_dev.create_qp            = mthca_create_qp;
 	dev->ib_dev.modify_qp            = mthca_modify_qp;
+	dev->ib_dev.query_qp             = mthca_query_qp;
 	dev->ib_dev.destroy_qp           = mthca_destroy_qp;
 	dev->ib_dev.create_cq            = mthca_create_cq;
+	dev->ib_dev.resize_cq            = mthca_resize_cq;
 	dev->ib_dev.destroy_cq           = mthca_destroy_cq;
 	dev->ib_dev.poll_cq              = mthca_poll_cq;
 	dev->ib_dev.get_dma_mr           = mthca_get_dma_mr;
@@ -912,7 +1364,7 @@ int mthca_register_device(struct mthca_dev *dev)
 		dev->ib_dev.post_recv     = mthca_tavor_post_receive;
 	}
 
-	init_MUTEX(&dev->cap_mask_mutex);
+	mutex_init(&dev->cap_mask_mutex);
 
 	ret = ib_register_device(&dev->ib_dev);
 	if (ret)
@@ -927,10 +1379,13 @@ int mthca_register_device(struct mthca_dev *dev)
 		}
 	}
 
+	mthca_start_catas_poll(dev);
+
 	return 0;
 }
 
 void mthca_unregister_device(struct mthca_dev *dev)
 {
+	mthca_stop_catas_poll(dev);
 	ib_unregister_device(&dev->ib_dev);
 }