Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 660 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
new file mode 100644
index 00000000000..bbf74cf4334
--- /dev/null
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -0,0 +1,660 @@
+/*
+ * Copyright (c) 2004, 2005 Topspin Communications.  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
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * 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 $
+ */
+
+#include <ib_smi.h>
+
+#include "mthca_dev.h"
+#include "mthca_cmd.h"
+
+static int mthca_query_device(struct ib_device *ibdev,
+			      struct ib_device_attr *props)
+{
+	struct ib_smp *in_mad  = NULL;
+	struct ib_smp *out_mad = NULL;
+	int err = -ENOMEM;
+	struct mthca_dev* mdev = to_mdev(ibdev);
+
+	u8 status;
+
+	in_mad  = kmalloc(sizeof *in_mad, GFP_KERNEL);
+	out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
+	if (!in_mad || !out_mad)
+		goto out;
+
+	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;
+
+	err = mthca_MAD_IFC(mdev, 1, 1,
+			    1, NULL, NULL, in_mad, out_mad,
+			    &status);
+	if (err)
+		goto out;
+	if (status) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	props->device_cap_flags = mdev->device_cap_flags;
+	props->vendor_id        = be32_to_cpup((u32 *) (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));
+	memcpy(&props->sys_image_guid, out_mad->data +  4, 8);
+	memcpy(&props->node_guid,      out_mad->data + 12, 8);
+
+	err = 0;
+ out:
+	kfree(in_mad);
+	kfree(out_mad);
+	return err;
+}
+
+static int mthca_query_port(struct ib_device *ibdev,
+			    u8 port, struct ib_port_attr *props)
+{
+	struct ib_smp *in_mad  = NULL;
+	struct ib_smp *out_mad = NULL;
+	int err = -ENOMEM;
+	u8 status;
+
+	in_mad  = kmalloc(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);
+
+	err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
+			    port, NULL, NULL, in_mad, out_mad,
+			    &status);
+	if (err)
+		goto out;
+	if (status) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	props->lid               = be16_to_cpup((u16 *) (out_mad->data + 16));
+	props->lmc               = out_mad->data[34] & 0x7;
+	props->sm_lid            = be16_to_cpup((u16 *) (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->gid_tbl_len       = to_mdev(ibdev)->limits.gid_table_len;
+	props->pkey_tbl_len      = to_mdev(ibdev)->limits.pkey_table_len;
+	props->qkey_viol_cntr    = be16_to_cpup((u16 *) (out_mad->data + 48));
+	props->active_width      = out_mad->data[31] & 0xf;
+	props->active_speed      = out_mad->data[35] >> 4;
+
+ out:
+	kfree(in_mad);
+	kfree(out_mad);
+	return err;
+}
+
+static int mthca_modify_port(struct ib_device *ibdev,
+			     u8 port, int port_modify_mask,
+			     struct ib_port_modify *props)
+{
+	struct mthca_set_ib_param set_ib;
+	struct ib_port_attr attr;
+	int err;
+	u8 status;
+
+	if (down_interruptible(&to_mdev(ibdev)->cap_mask_mutex))
+		return -ERESTARTSYS;
+
+	err = mthca_query_port(ibdev, port, &attr);
+	if (err)
+		goto out;
+
+	set_ib.set_si_guid     = 0;
+	set_ib.reset_qkey_viol = !!(port_modify_mask & IB_PORT_RESET_QKEY_CNTR);
+
+	set_ib.cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
+		~props->clr_port_cap_mask;
+
+	err = mthca_SET_IB(to_mdev(ibdev), &set_ib, port, &status);
+	if (err)
+		goto out;
+	if (status) {
+		err = -EINVAL;
+		goto out;
+	}
+
+out:
+	up(&to_mdev(ibdev)->cap_mask_mutex);
+	return err;
+}
+
+static int mthca_query_pkey(struct ib_device *ibdev,
+			    u8 port, u16 index, u16 *pkey)
+{
+	struct ib_smp *in_mad  = NULL;
+	struct ib_smp *out_mad = NULL;
+	int err = -ENOMEM;
+	u8 status;
+
+	in_mad  = kmalloc(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);
+
+	err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
+			    port, NULL, NULL, in_mad, out_mad,
+			    &status);
+	if (err)
+		goto out;
+	if (status) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	*pkey = be16_to_cpu(((u16 *) out_mad->data)[index % 32]);
+
+ out:
+	kfree(in_mad);
+	kfree(out_mad);
+	return err;
+}
+
+static int mthca_query_gid(struct ib_device *ibdev, u8 port,
+			   int index, union ib_gid *gid)
+{
+	struct ib_smp *in_mad  = NULL;
+	struct ib_smp *out_mad = NULL;
+	int err = -ENOMEM;
+	u8 status;
+
+	in_mad  = kmalloc(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);
+
+	err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
+			    port, NULL, NULL, in_mad, out_mad,
+			    &status);
+	if (err)
+		goto out;
+	if (status) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	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);
+
+	err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
+			    port, NULL, NULL, in_mad, out_mad,
+			    &status);
+	if (err)
+		goto out;
+	if (status) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	memcpy(gid->raw + 8, out_mad->data + (index % 8) * 16, 8);
+
+ out:
+	kfree(in_mad);
+	kfree(out_mad);
+	return err;
+}
+
+static struct ib_pd *mthca_alloc_pd(struct ib_device *ibdev)
+{
+	struct mthca_pd *pd;
+	int err;
+
+	pd = kmalloc(sizeof *pd, GFP_KERNEL);
+	if (!pd)
+		return ERR_PTR(-ENOMEM);
+
+	err = mthca_pd_alloc(to_mdev(ibdev), pd);
+	if (err) {
+		kfree(pd);
+		return ERR_PTR(err);
+	}
+
+	return &pd->ibpd;
+}
+
+static int mthca_dealloc_pd(struct ib_pd *pd)
+{
+	mthca_pd_free(to_mdev(pd->device), to_mpd(pd));
+	kfree(pd);
+
+	return 0;
+}
+
+static struct ib_ah *mthca_ah_create(struct ib_pd *pd,
+				     struct ib_ah_attr *ah_attr)
+{
+	int err;
+	struct mthca_ah *ah;
+
+	ah = kmalloc(sizeof *ah, GFP_KERNEL);
+	if (!ah)
+		return ERR_PTR(-ENOMEM);
+
+	err = mthca_create_ah(to_mdev(pd->device), to_mpd(pd), ah_attr, ah);
+	if (err) {
+		kfree(ah);
+		return ERR_PTR(err);
+	}
+
+	return &ah->ibah;
+}
+
+static int mthca_ah_destroy(struct ib_ah *ah)
+{
+	mthca_destroy_ah(to_mdev(ah->device), to_mah(ah));
+	kfree(ah);
+
+	return 0;
+}
+
+static struct ib_qp *mthca_create_qp(struct ib_pd *pd,
+				     struct ib_qp_init_attr *init_attr)
+{
+	struct mthca_qp *qp;
+	int err;
+
+	switch (init_attr->qp_type) {
+	case IB_QPT_RC:
+	case IB_QPT_UC:
+	case IB_QPT_UD:
+	{
+		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;
+
+		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);
+		qp->ibqp.qp_num = qp->qpn;
+		break;
+	}
+	case IB_QPT_SMI:
+	case IB_QPT_GSI:
+	{
+		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,
+				      qp->ibqp.qp_num, init_attr->port_num,
+				      to_msqp(qp));
+		break;
+	}
+	default:
+		/* Don't support raw QPs */
+		return ERR_PTR(-ENOSYS);
+	}
+
+	if (err) {
+		kfree(qp);
+		return ERR_PTR(err);
+	}
+
+        init_attr->cap.max_inline_data = 0;
+
+	return &qp->ibqp;
+}
+
+static int mthca_destroy_qp(struct ib_qp *qp)
+{
+	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)
+{
+	struct mthca_cq *cq;
+	int nent;
+	int err;
+
+	cq = kmalloc(sizeof *cq, GFP_KERNEL);
+	if (!cq)
+		return ERR_PTR(-ENOMEM);
+
+	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);
+	}
+
+	return &cq->ibcq;
+}
+
+static int mthca_destroy_cq(struct ib_cq *cq)
+{
+	mthca_free_cq(to_mdev(cq->device), to_mcq(cq));
+	kfree(cq);
+
+	return 0;
+}
+
+static inline u32 convert_access(int acc)
+{
+	return (acc & IB_ACCESS_REMOTE_ATOMIC ? MTHCA_MPT_FLAG_ATOMIC       : 0) |
+	       (acc & IB_ACCESS_REMOTE_WRITE  ? MTHCA_MPT_FLAG_REMOTE_WRITE : 0) |
+	       (acc & IB_ACCESS_REMOTE_READ   ? MTHCA_MPT_FLAG_REMOTE_READ  : 0) |
+	       (acc & IB_ACCESS_LOCAL_WRITE   ? MTHCA_MPT_FLAG_LOCAL_WRITE  : 0) |
+	       MTHCA_MPT_FLAG_LOCAL_READ;
+}
+
+static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc)
+{
+	struct mthca_mr *mr;
+	int err;
+
+	mr = kmalloc(sizeof *mr, GFP_KERNEL);
+	if (!mr)
+		return ERR_PTR(-ENOMEM);
+
+	err = mthca_mr_alloc_notrans(to_mdev(pd->device),
+				     to_mpd(pd)->pd_num,
+				     convert_access(acc), mr);
+
+	if (err) {
+		kfree(mr);
+		return ERR_PTR(err);
+	}
+
+	return &mr->ibmr;
+}
+
+static struct ib_mr *mthca_reg_phys_mr(struct ib_pd       *pd,
+				       struct ib_phys_buf *buffer_list,
+				       int                 num_phys_buf,
+				       int                 acc,
+				       u64                *iova_start)
+{
+	struct mthca_mr *mr;
+	u64 *page_list;
+	u64 total_size;
+	u64 mask;
+	int shift;
+	int npages;
+	int err;
+	int i, j, n;
+
+	/* First check that we have enough alignment */
+	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 (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);
+
+		total_size += buffer_list[i].size;
+		if (i > 0)
+			mask |= buffer_list[i].addr;
+	}
+
+	/* Find largest page shift we can use to cover buffers */
+	for (shift = PAGE_SHIFT; shift < 31; ++shift)
+		if (num_phys_buf > 1) {
+			if ((1ULL << shift) & mask)
+				break;
+		} else {
+			if (1ULL << shift >=
+			    buffer_list[0].size +
+			    (buffer_list[0].addr & ((1ULL << shift) - 1)))
+				break;
+		}
+
+	buffer_list[0].size += buffer_list[0].addr & ((1ULL << shift) - 1);
+	buffer_list[0].addr &= ~0ull << shift;
+
+	mr = kmalloc(sizeof *mr, GFP_KERNEL);
+	if (!mr)
+		return ERR_PTR(-ENOMEM);
+
+	npages = 0;
+	for (i = 0; i < num_phys_buf; ++i)
+		npages += (buffer_list[i].size + (1ULL << shift) - 1) >> shift;
+
+	if (!npages)
+		return &mr->ibmr;
+
+	page_list = kmalloc(npages * sizeof *page_list, GFP_KERNEL);
+	if (!page_list) {
+		kfree(mr);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	n = 0;
+	for (i = 0; i < num_phys_buf; ++i)
+		for (j = 0;
+		     j < (buffer_list[i].size + (1ULL << shift) - 1) >> shift;
+		     ++j)
+			page_list[n++] = buffer_list[i].addr + ((u64) j << shift);
+
+	mthca_dbg(to_mdev(pd->device), "Registering memory at %llx (iova %llx) "
+		  "in PD %x; shift %d, npages %d.\n",
+		  (unsigned long long) buffer_list[0].addr,
+		  (unsigned long long) *iova_start,
+		  to_mpd(pd)->pd_num,
+		  shift, npages);
+
+	err = mthca_mr_alloc_phys(to_mdev(pd->device),
+				  to_mpd(pd)->pd_num,
+				  page_list, shift, npages,
+				  *iova_start, total_size,
+				  convert_access(acc), mr);
+
+	if (err) {
+		kfree(mr);
+		return ERR_PTR(err);
+	}
+
+	kfree(page_list);
+	return &mr->ibmr;
+}
+
+static int mthca_dereg_mr(struct ib_mr *mr)
+{
+	mthca_free_mr(to_mdev(mr->device), to_mmr(mr));
+	kfree(mr);
+	return 0;
+}
+
+static ssize_t show_rev(struct class_device *cdev, char *buf)
+{
+	struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev);
+	return sprintf(buf, "%x\n", dev->rev_id);
+}
+
+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),
+		       (int) (dev->fw_ver >> 16) & 0xffff,
+		       (int) dev->fw_ver & 0xffff);
+}
+
+static ssize_t show_hca(struct class_device *cdev, char *buf)
+{
+	struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev);
+	switch (dev->hca_type) {
+	case TAVOR:        return sprintf(buf, "MT23108\n");
+	case ARBEL_COMPAT: return sprintf(buf, "MT25208 (MT23108 compat mode)\n");
+	case ARBEL_NATIVE: return sprintf(buf, "MT25208\n");
+	default:           return sprintf(buf, "unknown\n");
+	}
+}
+
+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 struct class_device_attribute *mthca_class_attributes[] = {
+	&class_device_attr_hw_rev,
+	&class_device_attr_fw_ver,
+	&class_device_attr_hca_type
+};
+
+int mthca_register_device(struct mthca_dev *dev)
+{
+	int ret;
+	int i;
+
+	strlcpy(dev->ib_dev.name, "mthca%d", IB_DEVICE_NAME_MAX);
+	dev->ib_dev.node_type            = IB_NODE_CA;
+	dev->ib_dev.phys_port_cnt        = dev->limits.num_ports;
+	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_port          = mthca_modify_port;
+	dev->ib_dev.query_pkey           = mthca_query_pkey;
+	dev->ib_dev.query_gid            = mthca_query_gid;
+	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.destroy_ah           = mthca_ah_destroy;
+	dev->ib_dev.create_qp            = mthca_create_qp;
+	dev->ib_dev.modify_qp            = mthca_modify_qp;
+	dev->ib_dev.destroy_qp           = mthca_destroy_qp;
+	dev->ib_dev.create_cq            = mthca_create_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;
+	dev->ib_dev.reg_phys_mr          = mthca_reg_phys_mr;
+	dev->ib_dev.dereg_mr             = mthca_dereg_mr;
+	dev->ib_dev.attach_mcast         = mthca_multicast_attach;
+	dev->ib_dev.detach_mcast         = mthca_multicast_detach;
+	dev->ib_dev.process_mad          = mthca_process_mad;
+
+	if (dev->hca_type == ARBEL_NATIVE) {
+		dev->ib_dev.req_notify_cq = mthca_arbel_arm_cq;
+		dev->ib_dev.post_send     = mthca_arbel_post_send;
+		dev->ib_dev.post_recv     = mthca_arbel_post_receive;
+	} else {
+		dev->ib_dev.req_notify_cq = mthca_tavor_arm_cq;
+		dev->ib_dev.post_send     = mthca_tavor_post_send;
+		dev->ib_dev.post_recv     = mthca_tavor_post_receive;
+	}
+
+	init_MUTEX(&dev->cap_mask_mutex);
+
+	ret = ib_register_device(&dev->ib_dev);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < ARRAY_SIZE(mthca_class_attributes); ++i) {
+		ret = class_device_create_file(&dev->ib_dev.class_dev,
+					       mthca_class_attributes[i]);
+		if (ret) {
+			ib_unregister_device(&dev->ib_dev);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+void mthca_unregister_device(struct mthca_dev *dev)
+{
+	ib_unregister_device(&dev->ib_dev);
+}