Merge ../linux-2.6

1 files changed, 163 insertions, 7 deletions

diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index e88e39aef85..2c250bc11c3 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -1,7 +1,7 @@
 /*
  * 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.
  *
@@ -108,12 +108,12 @@ static int mthca_query_device(struct ib_device *ibdev,
 	props->max_srq_wr          = mdev->limits.max_srq_wqes;
 	props->max_srq_sge         = mdev->limits.max_sg;
 	props->local_ca_ack_delay  = mdev->limits.local_ca_ack_delay;
-	props->atomic_cap          = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ? 
+	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_total_mcast_qp_attach = props->max_mcast_qp_attach *
 					   props->max_mcast_grp;
 
 	err = 0;
@@ -176,6 +176,23 @@ 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)
@@ -669,9 +686,9 @@ static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries,
 	}
 
 	if (context) {
-		cq->mr.ibmr.lkey    = ucmd.lkey;
-		cq->set_ci_db_index = ucmd.set_db_index;
-		cq->arm_db_index    = ucmd.arm_db_index;
+		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)
@@ -689,6 +706,8 @@ static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries,
 		goto err_free;
 	}
 
+	cq->resize_buf = NULL;
+
 	return &cq->ibcq;
 
 err_free:
@@ -707,6 +726,121 @@ err_unmap_set:
 	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;
+
+	entries = roundup_pow_of_two(entries + 1);
+	if (entries == ibcq->cqe + 1)
+		return 0;
+
+	if (cq->is_kernel) {
+		ret = mthca_alloc_resize_buf(dev, cq, entries);
+		if (ret)
+			return ret;
+		lkey = cq->resize_buf->buf.mr.ibmr.lkey;
+	} else {
+		if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd))
+			return -EFAULT;
+		lkey = ucmd.lkey;
+	}
+
+	ret = mthca_RESIZE_CQ(dev, cq->cqn, lkey, long_log2(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);
+		}
+		return ret;
+	}
+
+	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;
+
+	return 0;
+}
+
 static int mthca_destroy_cq(struct ib_cq *cq)
 {
 	if (cq->uobject) {
@@ -1070,6 +1204,20 @@ static int mthca_init_node_data(struct mthca_dev *dev)
 		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,
@@ -1113,14 +1261,17 @@ int mthca_register_device(struct mthca_dev *dev)
 		(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)	|
 		(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);
 	dev->ib_dev.node_type            = IB_NODE_CA;
 	dev->ib_dev.phys_port_cnt        = dev->limits.num_ports;
@@ -1128,6 +1279,7 @@ int mthca_register_device(struct mthca_dev *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;
@@ -1137,11 +1289,13 @@ 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.modify_srq           = mthca_modify_srq;
+		dev->ib_dev.query_srq            = mthca_query_srq;
 		dev->ib_dev.destroy_srq          = mthca_destroy_srq;
 
 		if (mthca_is_memfree(dev))
@@ -1152,8 +1306,10 @@ int mthca_register_device(struct mthca_dev *dev)
 
 	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;