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![Leon Romanovsky](/assets/img/avatar_default.png)
Several drivers used same function to initialize query MAD, so move that function to global header file. Link: https://lore.kernel.org/r/af6f35c590ff5ef56d0137351b8b295af0f7c13c.1641369858.git.leonro@nvidia.com Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Reviewed-by: Håkon Bugge <haakon.bugge@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
1178 lines
30 KiB
C
1178 lines
30 KiB
C
/*
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* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
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* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
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* Copyright (c) 2005, 2006 Cisco Systems. All rights reserved.
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* Copyright (c) 2005 Mellanox Technologies. All rights reserved.
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* Copyright (c) 2004 Voltaire, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <rdma/ib_smi.h>
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#include <rdma/ib_umem.h>
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#include <rdma/ib_user_verbs.h>
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#include <rdma/uverbs_ioctl.h>
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#include <linux/sched.h>
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#include <linux/slab.h>
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#include <linux/stat.h>
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#include <linux/mm.h>
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#include <linux/export.h>
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#include "mthca_dev.h"
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#include "mthca_cmd.h"
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#include <rdma/mthca-abi.h>
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#include "mthca_memfree.h"
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static int mthca_query_device(struct ib_device *ibdev, struct ib_device_attr *props,
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struct ib_udata *uhw)
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{
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struct ib_smp *in_mad = NULL;
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struct ib_smp *out_mad = NULL;
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int err = -ENOMEM;
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struct mthca_dev *mdev = to_mdev(ibdev);
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if (uhw->inlen || uhw->outlen)
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return -EINVAL;
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in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
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out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
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if (!in_mad || !out_mad)
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goto out;
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memset(props, 0, sizeof *props);
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props->fw_ver = mdev->fw_ver;
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ib_init_query_mad(in_mad);
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in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
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err = mthca_MAD_IFC(mdev, 1, 1,
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1, NULL, NULL, in_mad, out_mad);
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if (err)
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goto out;
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props->device_cap_flags = mdev->device_cap_flags;
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props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) &
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0xffffff;
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props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30));
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props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32));
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memcpy(&props->sys_image_guid, out_mad->data + 4, 8);
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props->max_mr_size = ~0ull;
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props->page_size_cap = mdev->limits.page_size_cap;
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props->max_qp = mdev->limits.num_qps - mdev->limits.reserved_qps;
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props->max_qp_wr = mdev->limits.max_wqes;
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props->max_send_sge = mdev->limits.max_sg;
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props->max_recv_sge = mdev->limits.max_sg;
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props->max_sge_rd = mdev->limits.max_sg;
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props->max_cq = mdev->limits.num_cqs - mdev->limits.reserved_cqs;
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props->max_cqe = mdev->limits.max_cqes;
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props->max_mr = mdev->limits.num_mpts - mdev->limits.reserved_mrws;
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props->max_pd = mdev->limits.num_pds - mdev->limits.reserved_pds;
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props->max_qp_rd_atom = 1 << mdev->qp_table.rdb_shift;
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props->max_qp_init_rd_atom = mdev->limits.max_qp_init_rdma;
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props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp;
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props->max_srq = mdev->limits.num_srqs - mdev->limits.reserved_srqs;
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props->max_srq_wr = mdev->limits.max_srq_wqes;
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props->max_srq_sge = mdev->limits.max_srq_sge;
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props->local_ca_ack_delay = mdev->limits.local_ca_ack_delay;
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props->atomic_cap = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ?
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IB_ATOMIC_HCA : IB_ATOMIC_NONE;
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props->max_pkeys = mdev->limits.pkey_table_len;
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props->max_mcast_grp = mdev->limits.num_mgms + mdev->limits.num_amgms;
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props->max_mcast_qp_attach = MTHCA_QP_PER_MGM;
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props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
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props->max_mcast_grp;
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err = 0;
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out:
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kfree(in_mad);
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kfree(out_mad);
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return err;
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}
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static int mthca_query_port(struct ib_device *ibdev,
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u32 port, struct ib_port_attr *props)
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{
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struct ib_smp *in_mad = NULL;
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struct ib_smp *out_mad = NULL;
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int err = -ENOMEM;
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in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
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out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
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if (!in_mad || !out_mad)
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goto out;
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/* props being zeroed by the caller, avoid zeroing it here */
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ib_init_query_mad(in_mad);
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in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
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in_mad->attr_mod = cpu_to_be32(port);
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err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
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port, NULL, NULL, in_mad, out_mad);
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if (err)
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goto out;
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props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16));
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props->lmc = out_mad->data[34] & 0x7;
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props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18));
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props->sm_sl = out_mad->data[36] & 0xf;
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props->state = out_mad->data[32] & 0xf;
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props->phys_state = out_mad->data[33] >> 4;
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props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20));
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props->gid_tbl_len = to_mdev(ibdev)->limits.gid_table_len;
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props->max_msg_sz = 0x80000000;
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props->pkey_tbl_len = to_mdev(ibdev)->limits.pkey_table_len;
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props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46));
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props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48));
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props->active_width = out_mad->data[31] & 0xf;
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props->active_speed = out_mad->data[35] >> 4;
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props->max_mtu = out_mad->data[41] & 0xf;
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props->active_mtu = out_mad->data[36] >> 4;
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props->subnet_timeout = out_mad->data[51] & 0x1f;
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props->max_vl_num = out_mad->data[37] >> 4;
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props->init_type_reply = out_mad->data[41] >> 4;
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out:
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kfree(in_mad);
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kfree(out_mad);
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return err;
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}
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static int mthca_modify_device(struct ib_device *ibdev,
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int mask,
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struct ib_device_modify *props)
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{
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if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
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return -EOPNOTSUPP;
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if (mask & IB_DEVICE_MODIFY_NODE_DESC) {
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if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex))
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return -ERESTARTSYS;
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memcpy(ibdev->node_desc, props->node_desc,
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IB_DEVICE_NODE_DESC_MAX);
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mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
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}
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return 0;
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}
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static int mthca_modify_port(struct ib_device *ibdev,
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u32 port, int port_modify_mask,
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struct ib_port_modify *props)
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{
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struct mthca_set_ib_param set_ib;
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struct ib_port_attr attr;
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int err;
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if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex))
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return -ERESTARTSYS;
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err = ib_query_port(ibdev, port, &attr);
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if (err)
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goto out;
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set_ib.set_si_guid = 0;
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set_ib.reset_qkey_viol = !!(port_modify_mask & IB_PORT_RESET_QKEY_CNTR);
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set_ib.cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
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~props->clr_port_cap_mask;
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err = mthca_SET_IB(to_mdev(ibdev), &set_ib, port);
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if (err)
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goto out;
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out:
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mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
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return err;
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}
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static int mthca_query_pkey(struct ib_device *ibdev,
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u32 port, u16 index, u16 *pkey)
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{
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struct ib_smp *in_mad = NULL;
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struct ib_smp *out_mad = NULL;
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int err = -ENOMEM;
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in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
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out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
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if (!in_mad || !out_mad)
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goto out;
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ib_init_query_mad(in_mad);
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in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE;
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in_mad->attr_mod = cpu_to_be32(index / 32);
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err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
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port, NULL, NULL, in_mad, out_mad);
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if (err)
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goto out;
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*pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
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out:
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kfree(in_mad);
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kfree(out_mad);
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return err;
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}
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static int mthca_query_gid(struct ib_device *ibdev, u32 port,
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int index, union ib_gid *gid)
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{
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struct ib_smp *in_mad = NULL;
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struct ib_smp *out_mad = NULL;
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int err = -ENOMEM;
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in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
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out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
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if (!in_mad || !out_mad)
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goto out;
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ib_init_query_mad(in_mad);
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in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
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in_mad->attr_mod = cpu_to_be32(port);
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err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
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port, NULL, NULL, in_mad, out_mad);
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if (err)
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goto out;
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memcpy(gid->raw, out_mad->data + 8, 8);
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ib_init_query_mad(in_mad);
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in_mad->attr_id = IB_SMP_ATTR_GUID_INFO;
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in_mad->attr_mod = cpu_to_be32(index / 8);
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err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
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port, NULL, NULL, in_mad, out_mad);
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if (err)
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goto out;
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memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
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out:
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kfree(in_mad);
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kfree(out_mad);
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return err;
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}
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static int mthca_alloc_ucontext(struct ib_ucontext *uctx,
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struct ib_udata *udata)
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{
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struct ib_device *ibdev = uctx->device;
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struct mthca_alloc_ucontext_resp uresp = {};
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struct mthca_ucontext *context = to_mucontext(uctx);
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int err;
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if (!(to_mdev(ibdev)->active))
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return -EAGAIN;
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uresp.qp_tab_size = to_mdev(ibdev)->limits.num_qps;
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if (mthca_is_memfree(to_mdev(ibdev)))
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uresp.uarc_size = to_mdev(ibdev)->uar_table.uarc_size;
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else
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uresp.uarc_size = 0;
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err = mthca_uar_alloc(to_mdev(ibdev), &context->uar);
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if (err)
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return err;
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context->db_tab = mthca_init_user_db_tab(to_mdev(ibdev));
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if (IS_ERR(context->db_tab)) {
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err = PTR_ERR(context->db_tab);
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mthca_uar_free(to_mdev(ibdev), &context->uar);
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return err;
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}
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if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) {
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mthca_cleanup_user_db_tab(to_mdev(ibdev), &context->uar, context->db_tab);
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mthca_uar_free(to_mdev(ibdev), &context->uar);
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return -EFAULT;
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}
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context->reg_mr_warned = 0;
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return 0;
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}
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static void mthca_dealloc_ucontext(struct ib_ucontext *context)
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{
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mthca_cleanup_user_db_tab(to_mdev(context->device), &to_mucontext(context)->uar,
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to_mucontext(context)->db_tab);
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mthca_uar_free(to_mdev(context->device), &to_mucontext(context)->uar);
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}
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static int mthca_mmap_uar(struct ib_ucontext *context,
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struct vm_area_struct *vma)
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{
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if (vma->vm_end - vma->vm_start != PAGE_SIZE)
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return -EINVAL;
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vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
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if (io_remap_pfn_range(vma, vma->vm_start,
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to_mucontext(context)->uar.pfn,
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PAGE_SIZE, vma->vm_page_prot))
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return -EAGAIN;
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return 0;
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}
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static int mthca_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
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{
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struct ib_device *ibdev = ibpd->device;
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struct mthca_pd *pd = to_mpd(ibpd);
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int err;
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err = mthca_pd_alloc(to_mdev(ibdev), !udata, pd);
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if (err)
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return err;
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if (udata) {
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if (ib_copy_to_udata(udata, &pd->pd_num, sizeof (__u32))) {
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mthca_pd_free(to_mdev(ibdev), pd);
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return -EFAULT;
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}
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}
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return 0;
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}
|
|
|
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static int mthca_dealloc_pd(struct ib_pd *pd, struct ib_udata *udata)
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{
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mthca_pd_free(to_mdev(pd->device), to_mpd(pd));
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return 0;
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}
|
|
|
|
static int mthca_ah_create(struct ib_ah *ibah,
|
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struct rdma_ah_init_attr *init_attr,
|
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struct ib_udata *udata)
|
|
|
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{
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struct mthca_ah *ah = to_mah(ibah);
|
|
|
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return mthca_create_ah(to_mdev(ibah->device), to_mpd(ibah->pd),
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init_attr->ah_attr, ah);
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}
|
|
|
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static int mthca_ah_destroy(struct ib_ah *ah, u32 flags)
|
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{
|
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mthca_destroy_ah(to_mdev(ah->device), to_mah(ah));
|
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return 0;
|
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}
|
|
|
|
static int mthca_create_srq(struct ib_srq *ibsrq,
|
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struct ib_srq_init_attr *init_attr,
|
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struct ib_udata *udata)
|
|
{
|
|
struct mthca_create_srq ucmd;
|
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struct mthca_ucontext *context = rdma_udata_to_drv_context(
|
|
udata, struct mthca_ucontext, ibucontext);
|
|
struct mthca_srq *srq = to_msrq(ibsrq);
|
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int err;
|
|
|
|
if (init_attr->srq_type != IB_SRQT_BASIC)
|
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return -EOPNOTSUPP;
|
|
|
|
if (udata) {
|
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if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd)))
|
|
return -EFAULT;
|
|
|
|
err = mthca_map_user_db(to_mdev(ibsrq->device), &context->uar,
|
|
context->db_tab, ucmd.db_index,
|
|
ucmd.db_page);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
srq->mr.ibmr.lkey = ucmd.lkey;
|
|
srq->db_index = ucmd.db_index;
|
|
}
|
|
|
|
err = mthca_alloc_srq(to_mdev(ibsrq->device), to_mpd(ibsrq->pd),
|
|
&init_attr->attr, srq, udata);
|
|
|
|
if (err && udata)
|
|
mthca_unmap_user_db(to_mdev(ibsrq->device), &context->uar,
|
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context->db_tab, ucmd.db_index);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
if (context && ib_copy_to_udata(udata, &srq->srqn, sizeof(__u32))) {
|
|
mthca_free_srq(to_mdev(ibsrq->device), srq);
|
|
return -EFAULT;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mthca_destroy_srq(struct ib_srq *srq, struct ib_udata *udata)
|
|
{
|
|
if (udata) {
|
|
struct mthca_ucontext *context =
|
|
rdma_udata_to_drv_context(
|
|
udata,
|
|
struct mthca_ucontext,
|
|
ibucontext);
|
|
|
|
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));
|
|
return 0;
|
|
}
|
|
|
|
static int mthca_create_qp(struct ib_qp *ibqp,
|
|
struct ib_qp_init_attr *init_attr,
|
|
struct ib_udata *udata)
|
|
{
|
|
struct mthca_ucontext *context = rdma_udata_to_drv_context(
|
|
udata, struct mthca_ucontext, ibucontext);
|
|
struct mthca_create_qp ucmd;
|
|
struct mthca_qp *qp = to_mqp(ibqp);
|
|
struct mthca_dev *dev = to_mdev(ibqp->device);
|
|
int err;
|
|
|
|
if (init_attr->create_flags)
|
|
return -EOPNOTSUPP;
|
|
|
|
switch (init_attr->qp_type) {
|
|
case IB_QPT_RC:
|
|
case IB_QPT_UC:
|
|
case IB_QPT_UD:
|
|
{
|
|
if (udata) {
|
|
if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd)))
|
|
return -EFAULT;
|
|
|
|
err = mthca_map_user_db(dev, &context->uar,
|
|
context->db_tab,
|
|
ucmd.sq_db_index,
|
|
ucmd.sq_db_page);
|
|
if (err)
|
|
return err;
|
|
|
|
err = mthca_map_user_db(dev, &context->uar,
|
|
context->db_tab,
|
|
ucmd.rq_db_index,
|
|
ucmd.rq_db_page);
|
|
if (err) {
|
|
mthca_unmap_user_db(dev, &context->uar,
|
|
context->db_tab,
|
|
ucmd.sq_db_index);
|
|
return 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(dev, to_mpd(ibqp->pd),
|
|
to_mcq(init_attr->send_cq),
|
|
to_mcq(init_attr->recv_cq),
|
|
init_attr->qp_type, init_attr->sq_sig_type,
|
|
&init_attr->cap, qp, udata);
|
|
|
|
if (err && udata) {
|
|
mthca_unmap_user_db(dev, &context->uar, context->db_tab,
|
|
ucmd.sq_db_index);
|
|
mthca_unmap_user_db(dev, &context->uar, context->db_tab,
|
|
ucmd.rq_db_index);
|
|
}
|
|
|
|
qp->ibqp.qp_num = qp->qpn;
|
|
break;
|
|
}
|
|
case IB_QPT_SMI:
|
|
case IB_QPT_GSI:
|
|
{
|
|
qp->sqp = kzalloc(sizeof(struct mthca_sqp), GFP_KERNEL);
|
|
if (!qp->sqp)
|
|
return -ENOMEM;
|
|
|
|
qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1;
|
|
|
|
err = mthca_alloc_sqp(dev, to_mpd(ibqp->pd),
|
|
to_mcq(init_attr->send_cq),
|
|
to_mcq(init_attr->recv_cq),
|
|
init_attr->sq_sig_type, &init_attr->cap,
|
|
qp->ibqp.qp_num, init_attr->port_num, qp,
|
|
udata);
|
|
break;
|
|
}
|
|
default:
|
|
/* Don't support raw QPs */
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
if (err) {
|
|
kfree(qp->sqp);
|
|
return err;
|
|
}
|
|
|
|
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 0;
|
|
}
|
|
|
|
static int mthca_destroy_qp(struct ib_qp *qp, struct ib_udata *udata)
|
|
{
|
|
if (udata) {
|
|
struct mthca_ucontext *context =
|
|
rdma_udata_to_drv_context(
|
|
udata,
|
|
struct mthca_ucontext,
|
|
ibucontext);
|
|
|
|
mthca_unmap_user_db(to_mdev(qp->device),
|
|
&context->uar,
|
|
context->db_tab,
|
|
to_mqp(qp)->sq.db_index);
|
|
mthca_unmap_user_db(to_mdev(qp->device),
|
|
&context->uar,
|
|
context->db_tab,
|
|
to_mqp(qp)->rq.db_index);
|
|
}
|
|
mthca_free_qp(to_mdev(qp->device), to_mqp(qp));
|
|
kfree(to_mqp(qp)->sqp);
|
|
return 0;
|
|
}
|
|
|
|
static int mthca_create_cq(struct ib_cq *ibcq,
|
|
const struct ib_cq_init_attr *attr,
|
|
struct ib_udata *udata)
|
|
{
|
|
struct ib_device *ibdev = ibcq->device;
|
|
int entries = attr->cqe;
|
|
struct mthca_create_cq ucmd;
|
|
struct mthca_cq *cq;
|
|
int nent;
|
|
int err;
|
|
struct mthca_ucontext *context = rdma_udata_to_drv_context(
|
|
udata, struct mthca_ucontext, ibucontext);
|
|
|
|
if (attr->flags)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (entries < 1 || entries > to_mdev(ibdev)->limits.max_cqes)
|
|
return -EINVAL;
|
|
|
|
if (udata) {
|
|
if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd)))
|
|
return -EFAULT;
|
|
|
|
err = mthca_map_user_db(to_mdev(ibdev), &context->uar,
|
|
context->db_tab, ucmd.set_db_index,
|
|
ucmd.set_db_page);
|
|
if (err)
|
|
return err;
|
|
|
|
err = mthca_map_user_db(to_mdev(ibdev), &context->uar,
|
|
context->db_tab, ucmd.arm_db_index,
|
|
ucmd.arm_db_page);
|
|
if (err)
|
|
goto err_unmap_set;
|
|
}
|
|
|
|
cq = to_mcq(ibcq);
|
|
|
|
if (udata) {
|
|
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, context,
|
|
udata ? ucmd.pdn : to_mdev(ibdev)->driver_pd.pd_num,
|
|
cq);
|
|
if (err)
|
|
goto err_unmap_arm;
|
|
|
|
if (udata && ib_copy_to_udata(udata, &cq->cqn, sizeof(__u32))) {
|
|
mthca_free_cq(to_mdev(ibdev), cq);
|
|
err = -EFAULT;
|
|
goto err_unmap_arm;
|
|
}
|
|
|
|
cq->resize_buf = NULL;
|
|
|
|
return 0;
|
|
|
|
err_unmap_arm:
|
|
if (udata)
|
|
mthca_unmap_user_db(to_mdev(ibdev), &context->uar,
|
|
context->db_tab, ucmd.arm_db_index);
|
|
|
|
err_unmap_set:
|
|
if (udata)
|
|
mthca_unmap_user_db(to_mdev(ibdev), &context->uar,
|
|
context->db_tab, ucmd.set_db_index);
|
|
|
|
return 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;
|
|
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));
|
|
|
|
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, struct ib_udata *udata)
|
|
{
|
|
if (udata) {
|
|
struct mthca_ucontext *context =
|
|
rdma_udata_to_drv_context(
|
|
udata,
|
|
struct mthca_ucontext,
|
|
ibucontext);
|
|
|
|
mthca_unmap_user_db(to_mdev(cq->device),
|
|
&context->uar,
|
|
context->db_tab,
|
|
to_mcq(cq)->arm_db_index);
|
|
mthca_unmap_user_db(to_mdev(cq->device),
|
|
&context->uar,
|
|
context->db_tab,
|
|
to_mcq(cq)->set_ci_db_index);
|
|
}
|
|
mthca_free_cq(to_mdev(cq->device), to_mcq(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);
|
|
}
|
|
|
|
mr->umem = NULL;
|
|
|
|
return &mr->ibmr;
|
|
}
|
|
|
|
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_block_iter biter;
|
|
struct mthca_ucontext *context = rdma_udata_to_drv_context(
|
|
udata, struct mthca_ucontext, ibucontext);
|
|
struct mthca_mr *mr;
|
|
struct mthca_reg_mr ucmd;
|
|
u64 *pages;
|
|
int n, i;
|
|
int err = 0;
|
|
int write_mtt_size;
|
|
|
|
if (udata->inlen < sizeof ucmd) {
|
|
if (!context->reg_mr_warned) {
|
|
mthca_warn(dev, "Process '%s' did not pass in MR attrs.\n",
|
|
current->comm);
|
|
mthca_warn(dev, " Update libmthca to fix this.\n");
|
|
}
|
|
++context->reg_mr_warned;
|
|
ucmd.mr_attrs = 0;
|
|
} else if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd))
|
|
return ERR_PTR(-EFAULT);
|
|
|
|
mr = kmalloc(sizeof *mr, GFP_KERNEL);
|
|
if (!mr)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
mr->umem = ib_umem_get(pd->device, start, length, acc);
|
|
if (IS_ERR(mr->umem)) {
|
|
err = PTR_ERR(mr->umem);
|
|
goto err;
|
|
}
|
|
|
|
n = ib_umem_num_dma_blocks(mr->umem, PAGE_SIZE);
|
|
|
|
mr->mtt = mthca_alloc_mtt(dev, n);
|
|
if (IS_ERR(mr->mtt)) {
|
|
err = PTR_ERR(mr->mtt);
|
|
goto err_umem;
|
|
}
|
|
|
|
pages = (u64 *) __get_free_page(GFP_KERNEL);
|
|
if (!pages) {
|
|
err = -ENOMEM;
|
|
goto err_mtt;
|
|
}
|
|
|
|
i = n = 0;
|
|
|
|
write_mtt_size = min(mthca_write_mtt_size(dev), (int) (PAGE_SIZE / sizeof *pages));
|
|
|
|
rdma_umem_for_each_dma_block(mr->umem, &biter, PAGE_SIZE) {
|
|
pages[i++] = rdma_block_iter_dma_address(&biter);
|
|
|
|
/*
|
|
* Be friendly to write_mtt and pass it chunks
|
|
* of appropriate size.
|
|
*/
|
|
if (i == write_mtt_size) {
|
|
err = mthca_write_mtt(dev, mr->mtt, n, pages, i);
|
|
if (err)
|
|
goto mtt_done;
|
|
n += i;
|
|
i = 0;
|
|
}
|
|
}
|
|
|
|
if (i)
|
|
err = mthca_write_mtt(dev, mr->mtt, n, pages, i);
|
|
mtt_done:
|
|
free_page((unsigned long) pages);
|
|
if (err)
|
|
goto err_mtt;
|
|
|
|
err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, PAGE_SHIFT, virt, length,
|
|
convert_access(acc), mr);
|
|
|
|
if (err)
|
|
goto err_mtt;
|
|
|
|
return &mr->ibmr;
|
|
|
|
err_mtt:
|
|
mthca_free_mtt(dev, mr->mtt);
|
|
|
|
err_umem:
|
|
ib_umem_release(mr->umem);
|
|
|
|
err:
|
|
kfree(mr);
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
static int mthca_dereg_mr(struct ib_mr *mr, struct ib_udata *udata)
|
|
{
|
|
struct mthca_mr *mmr = to_mmr(mr);
|
|
|
|
mthca_free_mr(to_mdev(mr->device), mmr);
|
|
ib_umem_release(mmr->umem);
|
|
kfree(mmr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t hw_rev_show(struct device *device,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct mthca_dev *dev =
|
|
rdma_device_to_drv_device(device, struct mthca_dev, ib_dev);
|
|
|
|
return sysfs_emit(buf, "%x\n", dev->rev_id);
|
|
}
|
|
static DEVICE_ATTR_RO(hw_rev);
|
|
|
|
static const char *hca_type_string(int hca_type)
|
|
{
|
|
switch (hca_type) {
|
|
case PCI_DEVICE_ID_MELLANOX_TAVOR:
|
|
return "MT23108";
|
|
case PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT:
|
|
return "MT25208 (MT23108 compat mode)";
|
|
case PCI_DEVICE_ID_MELLANOX_ARBEL:
|
|
return "MT25208";
|
|
case PCI_DEVICE_ID_MELLANOX_SINAI:
|
|
case PCI_DEVICE_ID_MELLANOX_SINAI_OLD:
|
|
return "MT25204";
|
|
}
|
|
|
|
return "unknown";
|
|
}
|
|
|
|
static ssize_t hca_type_show(struct device *device,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct mthca_dev *dev =
|
|
rdma_device_to_drv_device(device, struct mthca_dev, ib_dev);
|
|
|
|
return sysfs_emit(buf, "%s\n", hca_type_string(dev->pdev->device));
|
|
}
|
|
static DEVICE_ATTR_RO(hca_type);
|
|
|
|
static ssize_t board_id_show(struct device *device,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct mthca_dev *dev =
|
|
rdma_device_to_drv_device(device, struct mthca_dev, ib_dev);
|
|
|
|
return sysfs_emit(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id);
|
|
}
|
|
static DEVICE_ATTR_RO(board_id);
|
|
|
|
static struct attribute *mthca_dev_attributes[] = {
|
|
&dev_attr_hw_rev.attr,
|
|
&dev_attr_hca_type.attr,
|
|
&dev_attr_board_id.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group mthca_attr_group = {
|
|
.attrs = mthca_dev_attributes,
|
|
};
|
|
|
|
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;
|
|
|
|
in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
|
|
out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
|
|
if (!in_mad || !out_mad)
|
|
goto out;
|
|
|
|
ib_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);
|
|
if (err)
|
|
goto out;
|
|
|
|
memcpy(dev->ib_dev.node_desc, out_mad->data, IB_DEVICE_NODE_DESC_MAX);
|
|
|
|
in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
|
|
|
|
err = mthca_MAD_IFC(dev, 1, 1,
|
|
1, NULL, NULL, in_mad, out_mad);
|
|
if (err)
|
|
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;
|
|
}
|
|
|
|
static int mthca_port_immutable(struct ib_device *ibdev, u32 port_num,
|
|
struct ib_port_immutable *immutable)
|
|
{
|
|
struct ib_port_attr attr;
|
|
int err;
|
|
|
|
immutable->core_cap_flags = RDMA_CORE_PORT_IBA_IB;
|
|
|
|
err = ib_query_port(ibdev, port_num, &attr);
|
|
if (err)
|
|
return err;
|
|
|
|
immutable->pkey_tbl_len = attr.pkey_tbl_len;
|
|
immutable->gid_tbl_len = attr.gid_tbl_len;
|
|
immutable->max_mad_size = IB_MGMT_MAD_SIZE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void get_dev_fw_str(struct ib_device *device, char *str)
|
|
{
|
|
struct mthca_dev *dev =
|
|
container_of(device, struct mthca_dev, ib_dev);
|
|
snprintf(str, IB_FW_VERSION_NAME_MAX, "%d.%d.%d",
|
|
(int) (dev->fw_ver >> 32),
|
|
(int) (dev->fw_ver >> 16) & 0xffff,
|
|
(int) dev->fw_ver & 0xffff);
|
|
}
|
|
|
|
static const struct ib_device_ops mthca_dev_ops = {
|
|
.owner = THIS_MODULE,
|
|
.driver_id = RDMA_DRIVER_MTHCA,
|
|
.uverbs_abi_ver = MTHCA_UVERBS_ABI_VERSION,
|
|
.uverbs_no_driver_id_binding = 1,
|
|
|
|
.alloc_pd = mthca_alloc_pd,
|
|
.alloc_ucontext = mthca_alloc_ucontext,
|
|
.attach_mcast = mthca_multicast_attach,
|
|
.create_ah = mthca_ah_create,
|
|
.create_cq = mthca_create_cq,
|
|
.create_qp = mthca_create_qp,
|
|
.dealloc_pd = mthca_dealloc_pd,
|
|
.dealloc_ucontext = mthca_dealloc_ucontext,
|
|
.dereg_mr = mthca_dereg_mr,
|
|
.destroy_ah = mthca_ah_destroy,
|
|
.destroy_cq = mthca_destroy_cq,
|
|
.destroy_qp = mthca_destroy_qp,
|
|
.detach_mcast = mthca_multicast_detach,
|
|
.device_group = &mthca_attr_group,
|
|
.get_dev_fw_str = get_dev_fw_str,
|
|
.get_dma_mr = mthca_get_dma_mr,
|
|
.get_port_immutable = mthca_port_immutable,
|
|
.mmap = mthca_mmap_uar,
|
|
.modify_device = mthca_modify_device,
|
|
.modify_port = mthca_modify_port,
|
|
.modify_qp = mthca_modify_qp,
|
|
.poll_cq = mthca_poll_cq,
|
|
.process_mad = mthca_process_mad,
|
|
.query_ah = mthca_ah_query,
|
|
.query_device = mthca_query_device,
|
|
.query_gid = mthca_query_gid,
|
|
.query_pkey = mthca_query_pkey,
|
|
.query_port = mthca_query_port,
|
|
.query_qp = mthca_query_qp,
|
|
.reg_user_mr = mthca_reg_user_mr,
|
|
.resize_cq = mthca_resize_cq,
|
|
|
|
INIT_RDMA_OBJ_SIZE(ib_ah, mthca_ah, ibah),
|
|
INIT_RDMA_OBJ_SIZE(ib_cq, mthca_cq, ibcq),
|
|
INIT_RDMA_OBJ_SIZE(ib_pd, mthca_pd, ibpd),
|
|
INIT_RDMA_OBJ_SIZE(ib_qp, mthca_qp, ibqp),
|
|
INIT_RDMA_OBJ_SIZE(ib_ucontext, mthca_ucontext, ibucontext),
|
|
};
|
|
|
|
static const struct ib_device_ops mthca_dev_arbel_srq_ops = {
|
|
.create_srq = mthca_create_srq,
|
|
.destroy_srq = mthca_destroy_srq,
|
|
.modify_srq = mthca_modify_srq,
|
|
.post_srq_recv = mthca_arbel_post_srq_recv,
|
|
.query_srq = mthca_query_srq,
|
|
|
|
INIT_RDMA_OBJ_SIZE(ib_srq, mthca_srq, ibsrq),
|
|
};
|
|
|
|
static const struct ib_device_ops mthca_dev_tavor_srq_ops = {
|
|
.create_srq = mthca_create_srq,
|
|
.destroy_srq = mthca_destroy_srq,
|
|
.modify_srq = mthca_modify_srq,
|
|
.post_srq_recv = mthca_tavor_post_srq_recv,
|
|
.query_srq = mthca_query_srq,
|
|
|
|
INIT_RDMA_OBJ_SIZE(ib_srq, mthca_srq, ibsrq),
|
|
};
|
|
|
|
static const struct ib_device_ops mthca_dev_arbel_ops = {
|
|
.post_recv = mthca_arbel_post_receive,
|
|
.post_send = mthca_arbel_post_send,
|
|
.req_notify_cq = mthca_arbel_arm_cq,
|
|
};
|
|
|
|
static const struct ib_device_ops mthca_dev_tavor_ops = {
|
|
.post_recv = mthca_tavor_post_receive,
|
|
.post_send = mthca_tavor_post_send,
|
|
.req_notify_cq = mthca_tavor_arm_cq,
|
|
};
|
|
|
|
int mthca_register_device(struct mthca_dev *dev)
|
|
{
|
|
int ret;
|
|
|
|
ret = mthca_init_node_data(dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
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.dev.parent = &dev->pdev->dev;
|
|
|
|
if (dev->mthca_flags & MTHCA_FLAG_SRQ) {
|
|
if (mthca_is_memfree(dev))
|
|
ib_set_device_ops(&dev->ib_dev,
|
|
&mthca_dev_arbel_srq_ops);
|
|
else
|
|
ib_set_device_ops(&dev->ib_dev,
|
|
&mthca_dev_tavor_srq_ops);
|
|
}
|
|
|
|
ib_set_device_ops(&dev->ib_dev, &mthca_dev_ops);
|
|
|
|
if (mthca_is_memfree(dev))
|
|
ib_set_device_ops(&dev->ib_dev, &mthca_dev_arbel_ops);
|
|
else
|
|
ib_set_device_ops(&dev->ib_dev, &mthca_dev_tavor_ops);
|
|
|
|
mutex_init(&dev->cap_mask_mutex);
|
|
|
|
ret = ib_register_device(&dev->ib_dev, "mthca%d", &dev->pdev->dev);
|
|
if (ret)
|
|
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);
|
|
}
|