Main include file and .c file for mlx4_ib.

Signed-off-by: Roland Dreier <[EMAIL PROTECTED]>

---

 main.c    |  612 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 mlx4_ib.h |  285 ++++++++++++++++++++++++++++
 2 files changed, 897 insertions(+)

diff --git a/drivers/infiniband/hw/mlx4/main.c 
b/drivers/infiniband/hw/mlx4/main.c
new file mode 100644
index 0000000..6f7165f
--- /dev/null
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -0,0 +1,612 @@
+/*
+ * Copyright (c) 2006, 2007 Cisco Systems, 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
+ * 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.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+
+#include <rdma/ib_smi.h>
+#include <rdma/ib_user_verbs.h>
+
+#include <linux/mlx4/driver.h>
+#include <linux/mlx4/cmd.h>
+
+#include "mlx4_ib.h"
+#include "user.h"
+
+#define DRV_NAME       "mlx4_ib"
+#define DRV_VERSION    "0.01"
+#define DRV_RELDATE    "May 1, 2006"
+
+MODULE_AUTHOR("Roland Dreier");
+MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_VERSION(DRV_VERSION);
+
+static const char mlx4_ib_version[] __devinitdata =
+       DRV_NAME ": Mellanox ConnectX InfiniBand driver v"
+       DRV_VERSION " (" DRV_RELDATE ")\n";
+
+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 mlx4_ib_query_device(struct ib_device *ibdev,
+                               struct ib_device_attr *props)
+{
+       struct mlx4_ib_dev *dev = to_mdev(ibdev);
+       struct ib_smp *in_mad  = NULL;
+       struct ib_smp *out_mad = NULL;
+       int err = -ENOMEM;
+
+       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_INFO;
+
+       err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, 
out_mad);
+       if (err)
+               goto out;
+
+       memset(props, 0, sizeof *props);
+
+       props->fw_ver = dev->dev->caps.fw_ver;
+       props->device_cap_flags    = IB_DEVICE_CHANGE_PHY_PORT |
+               IB_DEVICE_PORT_ACTIVE_EVENT             |
+               IB_DEVICE_SYS_IMAGE_GUID                |
+               IB_DEVICE_RC_RNR_NAK_GEN;
+       if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR)
+               props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
+       if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR)
+               props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
+       if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM)
+               props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
+       if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT)
+               props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
+
+       props->vendor_id           = be32_to_cpup((__be32 *) (out_mad->data + 
36)) &
+               0xffffff;
+       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);
+
+       props->max_mr_size         = ~0ull;
+       props->page_size_cap       = dev->dev->caps.page_size_cap;
+       props->max_qp              = dev->dev->caps.num_qps - 
dev->dev->caps.reserved_qps;
+       props->max_qp_wr           = dev->dev->caps.max_wqes;
+       props->max_sge             = min(dev->dev->caps.max_sq_sg,
+                                        dev->dev->caps.max_rq_sg);
+       props->max_cq              = dev->dev->caps.num_cqs - 
dev->dev->caps.reserved_cqs;
+       props->max_cqe             = dev->dev->caps.max_cqes;
+       props->max_mr              = dev->dev->caps.num_mpts - 
dev->dev->caps.reserved_mrws;
+       props->max_pd              = dev->dev->caps.num_pds - 
dev->dev->caps.reserved_pds;
+       props->max_qp_rd_atom      = dev->dev->caps.max_qp_dest_rdma;
+       props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma;
+       props->max_res_rd_atom     = props->max_qp_rd_atom * props->max_qp;
+       props->max_srq             = dev->dev->caps.num_srqs - 
dev->dev->caps.reserved_srqs;
+       props->max_srq_wr          = dev->dev->caps.max_srq_wqes;
+       props->max_srq_sge         = dev->dev->caps.max_srq_sge;
+       props->local_ca_ack_delay  = dev->dev->caps.local_ca_ack_delay;
+       props->atomic_cap          = dev->dev->caps.flags & 
MLX4_DEV_CAP_FLAG_ATOMIC ?
+               IB_ATOMIC_HCA : IB_ATOMIC_NONE;
+       props->max_pkeys           = dev->dev->caps.pkey_table_len;
+       props->max_mcast_grp       = dev->dev->caps.num_mgms + 
dev->dev->caps.num_amgms;
+       props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
+                                          props->max_mcast_grp;
+       props->max_map_per_fmr = (1 << (32 - ilog2(dev->dev->caps.num_mpts))) - 
1;
+
+out:
+       kfree(in_mad);
+       kfree(out_mad);
+
+       return err;
+}
+
+static int mlx4_ib_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;
+
+       in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
+       out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
+       if (!in_mad || !out_mad)
+               goto out;
+
+       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 = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 
out_mad);
+       if (err)
+               goto out;
+
+       props->lid              = be16_to_cpup((__be16 *) (out_mad->data + 16));
+       props->lmc              = out_mad->data[34] & 0x7;
+       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((__be32 *) (out_mad->data + 20));
+       props->gid_tbl_len      = to_mdev(ibdev)->dev->caps.gid_table_len;
+       props->max_msg_sz       = 0x80000000;
+       props->pkey_tbl_len     = to_mdev(ibdev)->dev->caps.pkey_table_len;
+       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);
+       kfree(out_mad);
+
+       return err;
+}
+
+static int mlx4_ib_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;
+
+       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_PORT_INFO;
+       in_mad->attr_mod = cpu_to_be32(port);
+
+       err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 
out_mad);
+       if (err)
+               goto out;
+
+       memcpy(gid->raw, out_mad->data + 8, 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 = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 
out_mad);
+       if (err)
+               goto out;
+
+       memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
+
+out:
+       kfree(in_mad);
+       kfree(out_mad);
+       return err;
+}
+
+static int mlx4_ib_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;
+
+       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_PKEY_TABLE;
+       in_mad->attr_mod = cpu_to_be32(index / 32);
+
+       err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 
out_mad);
+       if (err)
+               goto out;
+
+       *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
+
+out:
+       kfree(in_mad);
+       kfree(out_mad);
+       return err;
+}
+
+static int mlx4_ib_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) {
+               spin_lock(&to_mdev(ibdev)->sm_lock);
+               memcpy(ibdev->node_desc, props->node_desc, 64);
+               spin_unlock(&to_mdev(ibdev)->sm_lock);
+       }
+
+       return 0;
+}
+
+static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int 
reset_qkey_viols,
+                        u32 cap_mask)
+{
+       struct mlx4_cmd_mailbox *mailbox;
+       int err;
+
+       mailbox = mlx4_alloc_cmd_mailbox(dev->dev);
+       if (IS_ERR(mailbox))
+               return PTR_ERR(mailbox);
+
+       memset(mailbox->buf, 0, 256);
+       *(u8 *) mailbox->buf         = cpu_to_be32(!!reset_qkey_viols << 6);
+       ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask);
+
+       err = mlx4_cmd(dev->dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT,
+                      MLX4_CMD_TIME_CLASS_B);
+
+       mlx4_free_cmd_mailbox(dev->dev, mailbox);
+       return err;
+}
+
+static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask,
+                              struct ib_port_modify *props)
+{
+       struct ib_port_attr attr;
+       u32 cap_mask;
+       int err;
+
+       mutex_lock(&to_mdev(ibdev)->cap_mask_mutex);
+
+       err = mlx4_ib_query_port(ibdev, port, &attr);
+       if (err)
+               goto out;
+
+       cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
+               ~props->clr_port_cap_mask;
+
+       err = mlx4_SET_PORT(to_mdev(ibdev), port,
+                           !!(mask & IB_PORT_RESET_QKEY_CNTR),
+                           cap_mask);
+
+out:
+       mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
+       return err;
+}
+
+static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev,
+                                                 struct ib_udata *udata)
+{
+       struct mlx4_ib_ucontext *context;
+       struct mlx4_ib_alloc_ucontext_resp resp;
+       int err;
+
+       resp.qp_tab_size = to_mdev(ibdev)->dev->caps.num_qps;
+       /* FIXME blueflame info */
+       resp.bf_reg_size = 0;
+
+       context = kmalloc(sizeof *context, GFP_KERNEL);
+       if (!context)
+               return ERR_PTR(-ENOMEM);
+
+       err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar);
+       if (err) {
+               kfree(context);
+               return ERR_PTR(err);
+       }
+
+       INIT_LIST_HEAD(&context->db_page_list);
+       mutex_init(&context->db_page_mutex);
+
+       err = ib_copy_to_udata(udata, &resp, sizeof resp);
+       if (err) {
+               mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar);
+               kfree(context);
+               return ERR_PTR(-EFAULT);
+       }
+
+       return &context->ibucontext;
+}
+
+static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
+{
+       struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
+
+       mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar);
+       kfree(context);
+
+       return 0;
+}
+
+static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct 
*vma)
+{
+       if (vma->vm_end - vma->vm_start != PAGE_SIZE)
+               return -EINVAL;
+
+       /* FIXME handle mapping blueflame regs if offset !=0 */
+       if (vma->vm_pgoff > 0)
+               return -EINVAL;
+
+       vma->vm_page_prot = pgprot_noncached(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;
+}
+
+static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev,
+                                     struct ib_ucontext *context,
+                                     struct ib_udata *udata)
+{
+       struct mlx4_ib_pd *pd;
+       int err;
+
+       pd = kmalloc(sizeof *pd, GFP_KERNEL);
+       if (!pd)
+               return ERR_PTR(-ENOMEM);
+
+       err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn);
+       if (err) {
+               kfree(pd);
+               return ERR_PTR(err);
+       }
+
+       if (context)
+               if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) {
+                       mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn);
+                       kfree(pd);
+                       return ERR_PTR(-EFAULT);
+               }
+
+       return &pd->ibpd;
+}
+
+static int mlx4_ib_dealloc_pd(struct ib_pd *pd)
+{
+       mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn);
+       kfree(pd);
+
+       return 0;
+}
+
+static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
+{
+       return mlx4_multicast_attach(to_mdev(ibqp->device)->dev,
+                                    &to_mqp(ibqp)->mqp, gid->raw);
+}
+
+static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
+{
+       return mlx4_multicast_detach(to_mdev(ibqp->device)->dev,
+                                    &to_mqp(ibqp)->mqp, gid->raw);
+}
+
+static int init_node_data(struct mlx4_ib_dev *dev)
+{
+       struct ib_smp *in_mad  = NULL;
+       struct ib_smp *out_mad = NULL;
+       int err = -ENOMEM;
+
+       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 = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
+       if (err)
+               goto out;
+
+       memcpy(dev->ib_dev.node_desc, out_mad->data, 64);
+
+       in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
+
+       err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
+       if (err)
+               goto out;
+
+       memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
+
+out:
+       kfree(in_mad);
+       kfree(out_mad);
+       return err;
+}
+
+static void *mlx4_ib_add(struct mlx4_dev *dev)
+{
+       struct mlx4_ib_dev *ibdev;
+
+       ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev);
+       if (!ibdev) {
+               dev_err(&dev->pdev->dev, "Device struct alloc failed\n");
+               return NULL;
+       }
+
+       if (mlx4_pd_alloc(dev, &ibdev->priv_pdn))
+               goto err_dealloc;
+
+       if (mlx4_uar_alloc(dev, &ibdev->priv_uar))
+               goto err_pd;
+
+       ibdev->uar_map = ioremap(ibdev->priv_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
+       if (!ibdev->uar_map)
+               goto err_uar;
+
+       INIT_LIST_HEAD(&ibdev->pgdir_list);
+       spin_lock_init(&ibdev->pgdir_lock);
+
+       ibdev->dev = dev;
+
+       strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX);
+       ibdev->ib_dev.owner             = THIS_MODULE;
+       ibdev->ib_dev.node_type         = RDMA_NODE_IB_CA;
+       ibdev->ib_dev.phys_port_cnt     = dev->caps.num_ports;
+       ibdev->ib_dev.dma_device        = &dev->pdev->dev;
+       ibdev->ib_dev.class_dev.dev     = &dev->pdev->dev;
+
+       ibdev->ib_dev.uverbs_abi_ver    = MLX4_IB_UVERBS_ABI_VERSION;
+       ibdev->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_DESTROY_CQ)          |
+               (1ull << IB_USER_VERBS_CMD_CREATE_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_DESTROY_SRQ);
+
+       ibdev->ib_dev.query_device      = mlx4_ib_query_device;
+       ibdev->ib_dev.query_port        = mlx4_ib_query_port;
+       ibdev->ib_dev.query_gid         = mlx4_ib_query_gid;
+       ibdev->ib_dev.query_pkey        = mlx4_ib_query_pkey;
+       ibdev->ib_dev.modify_device     = mlx4_ib_modify_device;
+       ibdev->ib_dev.modify_port       = mlx4_ib_modify_port;
+       ibdev->ib_dev.alloc_ucontext    = mlx4_ib_alloc_ucontext;
+       ibdev->ib_dev.dealloc_ucontext  = mlx4_ib_dealloc_ucontext;
+       ibdev->ib_dev.mmap              = mlx4_ib_mmap;
+       ibdev->ib_dev.alloc_pd          = mlx4_ib_alloc_pd;
+       ibdev->ib_dev.dealloc_pd        = mlx4_ib_dealloc_pd;
+       ibdev->ib_dev.create_ah         = mlx4_ib_create_ah;
+       ibdev->ib_dev.query_ah          = mlx4_ib_query_ah;
+       ibdev->ib_dev.destroy_ah        = mlx4_ib_destroy_ah;
+       ibdev->ib_dev.create_srq        = mlx4_ib_create_srq;
+       ibdev->ib_dev.modify_srq        = mlx4_ib_modify_srq;
+       ibdev->ib_dev.destroy_srq       = mlx4_ib_destroy_srq;
+       ibdev->ib_dev.post_srq_recv     = mlx4_ib_post_srq_recv;
+       ibdev->ib_dev.create_qp         = mlx4_ib_create_qp;
+       ibdev->ib_dev.modify_qp         = mlx4_ib_modify_qp;
+       ibdev->ib_dev.destroy_qp        = mlx4_ib_destroy_qp;
+       ibdev->ib_dev.post_send         = mlx4_ib_post_send;
+       ibdev->ib_dev.post_recv         = mlx4_ib_post_recv;
+       ibdev->ib_dev.create_cq         = mlx4_ib_create_cq;
+       ibdev->ib_dev.destroy_cq        = mlx4_ib_destroy_cq;
+       ibdev->ib_dev.poll_cq           = mlx4_ib_poll_cq;
+       ibdev->ib_dev.req_notify_cq     = mlx4_ib_arm_cq;
+       ibdev->ib_dev.get_dma_mr        = mlx4_ib_get_dma_mr;
+       ibdev->ib_dev.reg_user_mr       = mlx4_ib_reg_user_mr;
+       ibdev->ib_dev.dereg_mr          = mlx4_ib_dereg_mr;
+       ibdev->ib_dev.attach_mcast      = mlx4_ib_mcg_attach;
+       ibdev->ib_dev.detach_mcast      = mlx4_ib_mcg_detach;
+       ibdev->ib_dev.process_mad       = mlx4_ib_process_mad;
+
+       if (init_node_data(ibdev))
+               goto err_map;
+
+       spin_lock_init(&ibdev->sm_lock);
+       mutex_init(&ibdev->cap_mask_mutex);
+
+       if (ib_register_device(&ibdev->ib_dev))
+               goto err_map;
+
+       if (mlx4_ib_mad_init(ibdev))
+               goto err_reg;
+
+       return ibdev;
+
+err_reg:
+       ib_unregister_device(&ibdev->ib_dev);
+
+err_map:
+       iounmap(ibdev->uar_map);
+
+err_uar:
+       mlx4_uar_free(dev, &ibdev->priv_uar);
+
+err_pd:
+       mlx4_pd_free(dev, ibdev->priv_pdn);
+
+err_dealloc:
+       ib_dealloc_device(&ibdev->ib_dev);
+
+       return NULL;
+}
+
+static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
+{
+       struct mlx4_ib_dev *ibdev = ibdev_ptr;
+       int p;
+
+       for (p = 1; p <= dev->caps.num_ports; ++p)
+               mlx4_CLOSE_PORT(dev, p);
+
+       mlx4_ib_mad_cleanup(ibdev);
+       ib_unregister_device(&ibdev->ib_dev);
+       iounmap(ibdev->uar_map);
+       mlx4_uar_free(dev, &ibdev->priv_uar);
+       mlx4_pd_free(dev, ibdev->priv_pdn);
+       ib_dealloc_device(&ibdev->ib_dev);
+}
+
+static struct mlx4_interface mlx4_ib_interface = {
+       .add    = mlx4_ib_add,
+       .remove = mlx4_ib_remove
+};
+
+static int __init mlx4_ib_init(void)
+{
+       return mlx4_register_interface(&mlx4_ib_interface);
+}
+
+static void __exit mlx4_ib_cleanup(void)
+{
+       mlx4_unregister_interface(&mlx4_ib_interface);
+}
+
+module_init(mlx4_ib_init);
+module_exit(mlx4_ib_cleanup);
diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h 
b/drivers/infiniband/hw/mlx4/mlx4_ib.h
new file mode 100644
index 0000000..df3a11a
--- /dev/null
+++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
@@ -0,0 +1,285 @@
+/*
+ * Copyright (c) 2006 Cisco Systems.  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.
+ */
+
+#ifndef MLX4_IB_H
+#define MLX4_IB_H
+
+#include <linux/compiler.h>
+#include <linux/list.h>
+
+#include <rdma/ib_verbs.h>
+#include <rdma/ib_umem.h>
+
+#include <linux/mlx4/device.h>
+#include <linux/mlx4/doorbell.h>
+
+enum {
+       MLX4_IB_DB_PER_PAGE     = PAGE_SIZE / 4
+};
+
+struct mlx4_ib_db_pgdir;
+struct mlx4_ib_user_db_page;
+
+struct mlx4_ib_db {
+       __be32                 *db;
+       union {
+               struct mlx4_ib_db_pgdir        *pgdir;
+               struct mlx4_ib_user_db_page    *user_page;
+       }                       u;
+       dma_addr_t              dma;
+       int                     index;
+       int                     order;
+};
+
+struct mlx4_ib_ucontext {
+       struct ib_ucontext      ibucontext;
+       struct mlx4_uar         uar;
+       struct list_head        db_page_list;
+       struct mutex            db_page_mutex;
+};
+
+struct mlx4_ib_pd {
+       struct ib_pd            ibpd;
+       u32                     pdn;
+};
+
+struct mlx4_ib_cq_buf {
+       struct mlx4_buf         buf;
+       struct mlx4_mtt         mtt;
+};
+
+struct mlx4_ib_cq {
+       struct ib_cq            ibcq;
+       struct mlx4_cq          mcq;
+       struct mlx4_ib_cq_buf   buf;
+       struct mlx4_ib_db       db;
+       spinlock_t              lock;
+       struct ib_umem         *umem;
+};
+
+struct mlx4_ib_mr {
+       struct ib_mr            ibmr;
+       struct mlx4_mr          mmr;
+       struct ib_umem         *umem;
+};
+
+struct mlx4_ib_wq {
+       u64                    *wrid;
+       spinlock_t              lock;
+       int                     max;
+       int                     max_gs;
+       int                     offset;
+       int                     wqe_shift;
+       unsigned                head;
+       unsigned                tail;
+};
+
+struct mlx4_ib_qp {
+       struct ib_qp            ibqp;
+       struct mlx4_qp          mqp;
+       struct mlx4_buf         buf;
+
+       struct mlx4_ib_db       db;
+       struct mlx4_ib_wq       rq;
+
+       u32                     doorbell_qpn;
+       __be32                  sq_signal_bits;
+       struct mlx4_ib_wq       sq;
+
+       struct ib_umem         *umem;
+       struct mlx4_mtt         mtt;
+       int                     buf_size;
+       struct mutex            mutex;
+       u8                      port;
+       u8                      alt_port;
+       u8                      atomic_rd_en;
+       u8                      resp_depth;
+       u8                      state;
+};
+
+struct mlx4_ib_srq {
+       struct ib_srq           ibsrq;
+       struct mlx4_srq         msrq;
+       struct mlx4_buf         buf;
+       struct mlx4_ib_db       db;
+       u64                    *wrid;
+       spinlock_t              lock;
+       int                     head;
+       int                     tail;
+       u16                     wqe_ctr;
+       struct ib_umem         *umem;
+       struct mlx4_mtt         mtt;
+       struct mutex            mutex;
+};
+
+struct mlx4_ib_ah {
+       struct ib_ah            ibah;
+       struct mlx4_av          av;
+};
+
+struct mlx4_ib_dev {
+       struct ib_device        ib_dev;
+       struct mlx4_dev        *dev;
+       void __iomem           *uar_map;
+
+       struct list_head        pgdir_list;
+       spinlock_t              pgdir_lock;
+
+       struct mlx4_uar         priv_uar;
+       u32                     priv_pdn;
+       MLX4_DECLARE_DOORBELL_LOCK(uar_lock);
+
+       struct ib_mad_agent    *send_agent[MLX4_MAX_PORTS][2];
+       struct ib_ah           *sm_ah[MLX4_MAX_PORTS];
+       spinlock_t              sm_lock;
+
+       struct mutex            cap_mask_mutex;
+};
+
+static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
+{
+       return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
+}
+
+static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext 
*ibucontext)
+{
+       return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
+}
+
+static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
+{
+       return container_of(ibpd, struct mlx4_ib_pd, ibpd);
+}
+
+static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
+{
+       return container_of(ibcq, struct mlx4_ib_cq, ibcq);
+}
+
+static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
+{
+       return container_of(mcq, struct mlx4_ib_cq, mcq);
+}
+
+static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
+{
+       return container_of(ibmr, struct mlx4_ib_mr, ibmr);
+}
+
+static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
+{
+       return container_of(ibqp, struct mlx4_ib_qp, ibqp);
+}
+
+static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
+{
+       return container_of(mqp, struct mlx4_ib_qp, mqp);
+}
+
+static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
+{
+       return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
+}
+
+static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
+{
+       return container_of(msrq, struct mlx4_ib_srq, msrq);
+}
+
+static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
+{
+       return container_of(ibah, struct mlx4_ib_ah, ibah);
+}
+
+int mlx4_ib_db_alloc(struct mlx4_ib_dev *dev, struct mlx4_ib_db *db, int 
order);
+void mlx4_ib_db_free(struct mlx4_ib_dev *dev, struct mlx4_ib_db *db);
+int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt,
+                       struct mlx4_ib_db *db);
+void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_ib_db 
*db);
+
+struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc);
+int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
+                          struct ib_umem *umem);
+struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
+                                 u64 virt_addr, int access_flags,
+                                 struct ib_udata *udata);
+int mlx4_ib_dereg_mr(struct ib_mr *mr);
+
+struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries,
+                               struct ib_ucontext *context,
+                               struct ib_udata *udata);
+int mlx4_ib_destroy_cq(struct ib_cq *cq);
+int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
+int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify notify);
+void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq 
*srq);
+void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
+
+struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr);
+int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr);
+int mlx4_ib_destroy_ah(struct ib_ah *ah);
+
+struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
+                                 struct ib_srq_init_attr *init_attr,
+                                 struct ib_udata *udata);
+int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
+                      enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
+int mlx4_ib_destroy_srq(struct ib_srq *srq);
+void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
+int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
+                         struct ib_recv_wr **bad_wr);
+
+struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
+                               struct ib_qp_init_attr *init_attr,
+                               struct ib_udata *udata);
+int mlx4_ib_destroy_qp(struct ib_qp *qp);
+int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
+                     int attr_mask, struct ib_udata *udata);
+int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
+                     struct ib_send_wr **bad_wr);
+int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
+                     struct ib_recv_wr **bad_wr);
+
+int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int ignore_mkey, int ignore_bkey,
+                int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
+                void *in_mad, void *response_mad);
+int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags,        u8 
port_num,
+                       struct ib_wc *in_wc, struct ib_grh *in_grh,
+                       struct ib_mad *in_mad, struct ib_mad *out_mad);
+int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
+void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
+
+static inline int mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
+{
+       return !!(ah->av.g_slid & 0x80);
+}
+
+#endif /* MLX4_IB_H */
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