X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Finfiniband%2Fhw%2Fmthca%2Fmthca_provider.c;h=696e1f30233268a6f69261ca10dd4fb0beadef28;hb=f4e91eb4a81559da87a3843758a641b5cc590b65;hp=e2db5e001869b92c1c921656c3bb13155ae54d7c;hpb=97f52eb438be7caebe026421545619d8a0c1398a;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 e2db5e0..696e1f3 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. * @@ -33,10 +33,12 @@ * 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 +#include +#include +#include #include #include "mthca_dev.h" @@ -44,17 +46,25 @@ #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) { struct ib_smp *in_mad = NULL; struct ib_smp *out_mad = NULL; int err = -ENOMEM; - struct mthca_dev* mdev = to_mdev(ibdev); + struct mthca_dev *mdev = to_mdev(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; @@ -63,12 +73,8 @@ 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, @@ -84,21 +90,42 @@ static int mthca_query_device(struct ib_device *ibdev, 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 = be16_to_cpup((__be16 *) (out_mad->data + 32)); + 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: @@ -115,18 +142,16 @@ 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, @@ -146,10 +171,17 @@ static int mthca_query_port(struct ib_device *ibdev, 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)->limits.gid_table_len; + props->max_msg_sz = 0x80000000; props->pkey_tbl_len = to_mdev(ibdev)->limits.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); @@ -157,6 +189,23 @@ 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) @@ -166,7 +215,7 @@ 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); @@ -188,7 +237,7 @@ 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; } @@ -200,18 +249,14 @@ 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, @@ -239,18 +284,14 @@ 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, @@ -264,13 +305,9 @@ 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, @@ -282,7 +319,7 @@ 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); @@ -422,6 +459,79 @@ 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) @@ -430,6 +540,9 @@ static struct ib_qp *mthca_create_qp(struct ib_pd *pd, struct mthca_qp *qp; int err; + if (init_attr->create_flags) + return ERR_PTR(-EINVAL); + switch (init_attr->qp_type) { case IB_QPT_RC: case IB_QPT_UC: @@ -444,8 +557,10 @@ static struct ib_qp *mthca_create_qp(struct ib_pd *pd, if (pd->uobject) { context = to_mucontext(pd->uobject->context); - if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) + 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, @@ -525,11 +640,11 @@ 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; } @@ -552,6 +667,7 @@ static int mthca_destroy_qp(struct ib_qp *qp) } static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries, + int comp_vector, struct ib_ucontext *context, struct ib_udata *udata) { @@ -560,6 +676,9 @@ static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries, 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); @@ -584,9 +703,9 @@ 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) @@ -604,6 +723,8 @@ 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: @@ -622,6 +743,130 @@ 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; + + 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) { @@ -667,6 +912,8 @@ static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc) return ERR_PTR(err); } + mr->umem = NULL; + return &mr->ibmr; } @@ -679,45 +926,27 @@ static struct ib_mr *mthca_reg_phys_mr(struct ib_pd *pd, struct mthca_mr *mr; u64 *page_list; u64 total_size; - u64 mask; + unsigned long 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; + mask = buffer_list[0].addr ^ *iova_start; 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; } - /* 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; - } + if (mask & ~PAGE_MASK) + return ERR_PTR(-EINVAL); + + shift = __ffs(mask | 1 << 31); buffer_list[0].size += buffer_list[0].addr & ((1ULL << shift) - 1); buffer_list[0].addr &= ~0ull << shift; @@ -766,11 +995,13 @@ static struct ib_mr *mthca_reg_phys_mr(struct ib_pd *pd, } kfree(page_list); + mr->umem = NULL; + return &mr->ibmr; } -static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, struct ib_umem *region, - int acc, struct ib_udata *udata) +static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, + u64 virt, int acc, struct ib_udata *udata) { struct mthca_dev *dev = to_mdev(pd->device); struct ib_umem_chunk *chunk; @@ -779,21 +1010,28 @@ 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; - - shift = ffs(region->page_size) - 1; + int write_mtt_size; mr = kmalloc(sizeof *mr, GFP_KERNEL); if (!mr) return ERR_PTR(-ENOMEM); + mr->umem = ib_umem_get(pd->uobject->context, start, length, acc); + if (IS_ERR(mr->umem)) { + err = PTR_ERR(mr->umem); + goto err; + } + + shift = ffs(mr->umem->page_size) - 1; + n = 0; - list_for_each_entry(chunk, ®ion->chunk_list, list) + list_for_each_entry(chunk, &mr->umem->chunk_list, list) n += chunk->nents; mr->mtt = mthca_alloc_mtt(dev, n); if (IS_ERR(mr->mtt)) { err = PTR_ERR(mr->mtt); - goto err; + goto err_umem; } pages = (u64 *) __get_free_page(GFP_KERNEL); @@ -804,21 +1042,20 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, struct ib_umem *region, i = n = 0; - list_for_each_entry(chunk, ®ion->chunk_list, list) + write_mtt_size = min(mthca_write_mtt_size(dev), (int) (PAGE_SIZE / sizeof *pages)); + + list_for_each_entry(chunk, &mr->umem->chunk_list, list) for (j = 0; j < chunk->nmap; ++j) { len = sg_dma_len(&chunk->page_list[j]) >> shift; for (k = 0; k < len; ++k) { pages[i++] = sg_dma_address(&chunk->page_list[j]) + - region->page_size * k; + mr->umem->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; @@ -834,8 +1071,8 @@ mtt_done: if (err) goto err_mtt; - err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, shift, region->virt_base, - region->length, convert_access(acc), mr); + err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, shift, virt, length, + convert_access(acc), mr); if (err) goto err_mtt; @@ -845,6 +1082,9 @@ mtt_done: err_mtt: mthca_free_mtt(dev, mr->mtt); +err_umem: + ib_umem_release(mr->umem); + err: kfree(mr); return ERR_PTR(err); @@ -853,8 +1093,12 @@ err: static int mthca_dereg_mr(struct ib_mr *mr) { struct mthca_mr *mmr = to_mmr(mr); + mthca_free_mr(to_mdev(mr->device), mmr); + if (mmr->umem) + ib_umem_release(mmr->umem); kfree(mmr); + return 0; } @@ -926,23 +1170,29 @@ static int mthca_unmap_fmr(struct list_head *fmr_list) return 0; } -static ssize_t show_rev(struct class_device *cdev, char *buf) +static ssize_t show_rev(struct device *device, struct device_attribute *attr, + char *buf) { - struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); + struct mthca_dev *dev = + container_of(device, struct mthca_dev, ib_dev.dev); return sprintf(buf, "%x\n", dev->rev_id); } -static ssize_t show_fw_ver(struct class_device *cdev, char *buf) +static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, + 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), + struct mthca_dev *dev = + container_of(device, struct mthca_dev, ib_dev.dev); + return sprintf(buf, "%d.%d.%d\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) +static ssize_t show_hca(struct device *device, struct device_attribute *attr, + char *buf) { - struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); + struct mthca_dev *dev = + container_of(device, struct mthca_dev, ib_dev.dev); switch (dev->pdev->device) { case PCI_DEVICE_ID_MELLANOX_TAVOR: return sprintf(buf, "MT23108\n"); @@ -958,30 +1208,113 @@ static ssize_t show_hca(struct class_device *cdev, char *buf) } } -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 ssize_t show_board(struct device *device, struct device_attribute *attr, + char *buf) +{ + struct mthca_dev *dev = + container_of(device, struct mthca_dev, ib_dev.dev); + return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id); +} + +static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); +static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); +static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); +static 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 +static struct device_attribute *mthca_dev_attributes[] = { + &dev_attr_hw_rev, + &dev_attr_fw_ver, + &dev_attr_hca_type, + &dev_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; + } + + if (mthca_is_memfree(dev)) + dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32)); + 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; @@ -991,11 +1324,32 @@ 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; @@ -1027,25 +1381,28 @@ 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) 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]); + for (i = 0; i < ARRAY_SIZE(mthca_dev_attributes); ++i) { + ret = device_create_file(&dev->ib_dev.dev, + mthca_dev_attributes[i]); if (ret) { ib_unregister_device(&dev->ib_dev); return ret; } } + 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); }