Logo Search packages:      
Sourcecode: linux version File versions  Download package

ehca_hca.c

/*
 *  IBM eServer eHCA Infiniband device driver for Linux on POWER
 *
 *  HCA query functions
 *
 *  Authors: Heiko J Schick <schickhj@de.ibm.com>
 *           Christoph Raisch <raisch@de.ibm.com>
 *
 *  Copyright (c) 2005 IBM Corporation
 *
 *  All rights reserved.
 *
 *  This source code is distributed under a dual license of GPL v2.0 and OpenIB
 *  BSD.
 *
 * OpenIB BSD License
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "ehca_tools.h"
#include "ehca_iverbs.h"
#include "hcp_if.h"

int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props)
{
      int i, ret = 0;
      struct ehca_shca *shca = container_of(ibdev, struct ehca_shca,
                                    ib_device);
      struct hipz_query_hca *rblock;

      static const u32 cap_mapping[] = {
            IB_DEVICE_RESIZE_MAX_WR,      HCA_CAP_WQE_RESIZE,
            IB_DEVICE_BAD_PKEY_CNTR,      HCA_CAP_BAD_P_KEY_CTR,
            IB_DEVICE_BAD_QKEY_CNTR,      HCA_CAP_Q_KEY_VIOL_CTR,
            IB_DEVICE_RAW_MULTI,          HCA_CAP_RAW_PACKET_MCAST,
            IB_DEVICE_AUTO_PATH_MIG,      HCA_CAP_AUTO_PATH_MIG,
            IB_DEVICE_CHANGE_PHY_PORT,    HCA_CAP_SQD_RTS_PORT_CHANGE,
            IB_DEVICE_UD_AV_PORT_ENFORCE, HCA_CAP_AH_PORT_NR_CHECK,
            IB_DEVICE_CURR_QP_STATE_MOD,  HCA_CAP_CUR_QP_STATE_MOD,
            IB_DEVICE_SHUTDOWN_PORT,      HCA_CAP_SHUTDOWN_PORT,
            IB_DEVICE_INIT_TYPE,          HCA_CAP_INIT_TYPE,
            IB_DEVICE_PORT_ACTIVE_EVENT,  HCA_CAP_PORT_ACTIVE_EVENT,
      };

      rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL);
      if (!rblock) {
            ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
            return -ENOMEM;
      }

      if (hipz_h_query_hca(shca->ipz_hca_handle, rblock) != H_SUCCESS) {
            ehca_err(&shca->ib_device, "Can't query device properties");
            ret = -EINVAL;
            goto query_device1;
      }

      memset(props, 0, sizeof(struct ib_device_attr));
      props->page_size_cap   = shca->hca_cap_mr_pgsize;
      props->fw_ver          = rblock->hw_ver;
      props->max_mr_size     = rblock->max_mr_size;
      props->vendor_id       = rblock->vendor_id >> 8;
      props->vendor_part_id  = rblock->vendor_part_id >> 16;
      props->hw_ver          = rblock->hw_ver;
      props->max_qp          = min_t(unsigned, rblock->max_qp, INT_MAX);
      props->max_qp_wr       = min_t(unsigned, rblock->max_wqes_wq, INT_MAX);
      props->max_sge         = min_t(unsigned, rblock->max_sge, INT_MAX);
      props->max_sge_rd      = min_t(unsigned, rblock->max_sge_rd, INT_MAX);
      props->max_cq          = min_t(unsigned, rblock->max_cq, INT_MAX);
      props->max_cqe         = min_t(unsigned, rblock->max_cqe, INT_MAX);
      props->max_mr          = min_t(unsigned, rblock->max_mr, INT_MAX);
      props->max_mw          = min_t(unsigned, rblock->max_mw, INT_MAX);
      props->max_pd          = min_t(unsigned, rblock->max_pd, INT_MAX);
      props->max_ah          = min_t(unsigned, rblock->max_ah, INT_MAX);
      props->max_fmr         = min_t(unsigned, rblock->max_mr, INT_MAX);

      if (EHCA_BMASK_GET(HCA_CAP_SRQ, shca->hca_cap)) {
            props->max_srq         = props->max_qp;
            props->max_srq_wr      = props->max_qp_wr;
            props->max_srq_sge     = 3;
      }

      props->max_pkeys       = 16;
      props->local_ca_ack_delay
            = rblock->local_ca_ack_delay;
      props->max_raw_ipv6_qp
            = min_t(unsigned, rblock->max_raw_ipv6_qp, INT_MAX);
      props->max_raw_ethy_qp
            = min_t(unsigned, rblock->max_raw_ethy_qp, INT_MAX);
      props->max_mcast_grp
            = min_t(unsigned, rblock->max_mcast_grp, INT_MAX);
      props->max_mcast_qp_attach
            = min_t(unsigned, rblock->max_mcast_qp_attach, INT_MAX);
      props->max_total_mcast_qp_attach
            = min_t(unsigned, rblock->max_total_mcast_qp_attach, INT_MAX);

      /* translate device capabilities */
      props->device_cap_flags = IB_DEVICE_SYS_IMAGE_GUID |
            IB_DEVICE_RC_RNR_NAK_GEN | IB_DEVICE_N_NOTIFY_CQ;
      for (i = 0; i < ARRAY_SIZE(cap_mapping); i += 2)
            if (rblock->hca_cap_indicators & cap_mapping[i + 1])
                  props->device_cap_flags |= cap_mapping[i];

query_device1:
      ehca_free_fw_ctrlblock(rblock);

      return ret;
}

int ehca_query_port(struct ib_device *ibdev,
                u8 port, struct ib_port_attr *props)
{
      int ret = 0;
      u64 h_ret;
      struct ehca_shca *shca = container_of(ibdev, struct ehca_shca,
                                    ib_device);
      struct hipz_query_port *rblock;

      rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL);
      if (!rblock) {
            ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
            return -ENOMEM;
      }

      h_ret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock);
      if (h_ret != H_SUCCESS) {
            ehca_err(&shca->ib_device, "Can't query port properties");
            ret = -EINVAL;
            goto query_port1;
      }

      memset(props, 0, sizeof(struct ib_port_attr));

      switch (rblock->max_mtu) {
      case 0x1:
            props->active_mtu = props->max_mtu = IB_MTU_256;
            break;
      case 0x2:
            props->active_mtu = props->max_mtu = IB_MTU_512;
            break;
      case 0x3:
            props->active_mtu = props->max_mtu = IB_MTU_1024;
            break;
      case 0x4:
            props->active_mtu = props->max_mtu = IB_MTU_2048;
            break;
      case 0x5:
            props->active_mtu = props->max_mtu = IB_MTU_4096;
            break;
      default:
            ehca_err(&shca->ib_device, "Unknown MTU size: %x.",
                   rblock->max_mtu);
            break;
      }

      props->port_cap_flags  = rblock->capability_mask;
      props->gid_tbl_len     = rblock->gid_tbl_len;
      props->max_msg_sz      = rblock->max_msg_sz;
      props->bad_pkey_cntr   = rblock->bad_pkey_cntr;
      props->qkey_viol_cntr  = rblock->qkey_viol_cntr;
      props->pkey_tbl_len    = rblock->pkey_tbl_len;
      props->lid             = rblock->lid;
      props->sm_lid          = rblock->sm_lid;
      props->lmc             = rblock->lmc;
      props->sm_sl           = rblock->sm_sl;
      props->subnet_timeout  = rblock->subnet_timeout;
      props->init_type_reply = rblock->init_type_reply;

      if (rblock->state && rblock->phys_width) {
            props->phys_state      = rblock->phys_pstate;
            props->state           = rblock->phys_state;
            props->active_width    = rblock->phys_width;
            props->active_speed    = rblock->phys_speed;
      } else {
            /* old firmware releases don't report physical
             * port info, so use default values
             */
            props->phys_state      = 5;
            props->state           = rblock->state;
            props->active_width    = IB_WIDTH_12X;
            props->active_speed    = 0x1;
      }

query_port1:
      ehca_free_fw_ctrlblock(rblock);

      return ret;
}

int ehca_query_sma_attr(struct ehca_shca *shca,
                  u8 port, struct ehca_sma_attr *attr)
{
      int ret = 0;
      u64 h_ret;
      struct hipz_query_port *rblock;

      rblock = ehca_alloc_fw_ctrlblock(GFP_ATOMIC);
      if (!rblock) {
            ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
            return -ENOMEM;
      }

      h_ret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock);
      if (h_ret != H_SUCCESS) {
            ehca_err(&shca->ib_device, "Can't query port properties");
            ret = -EINVAL;
            goto query_sma_attr1;
      }

      memset(attr, 0, sizeof(struct ehca_sma_attr));

      attr->lid    = rblock->lid;
      attr->lmc    = rblock->lmc;
      attr->sm_sl  = rblock->sm_sl;
      attr->sm_lid = rblock->sm_lid;

      attr->pkey_tbl_len = rblock->pkey_tbl_len;
      memcpy(attr->pkeys, rblock->pkey_entries, sizeof(attr->pkeys));

query_sma_attr1:
      ehca_free_fw_ctrlblock(rblock);

      return ret;
}

int ehca_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey)
{
      int ret = 0;
      u64 h_ret;
      struct ehca_shca *shca;
      struct hipz_query_port *rblock;

      shca = container_of(ibdev, struct ehca_shca, ib_device);
      if (index > 16) {
            ehca_err(&shca->ib_device, "Invalid index: %x.", index);
            return -EINVAL;
      }

      rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL);
      if (!rblock) {
            ehca_err(&shca->ib_device,  "Can't allocate rblock memory.");
            return -ENOMEM;
      }

      h_ret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock);
      if (h_ret != H_SUCCESS) {
            ehca_err(&shca->ib_device, "Can't query port properties");
            ret = -EINVAL;
            goto query_pkey1;
      }

      memcpy(pkey, &rblock->pkey_entries + index, sizeof(u16));

query_pkey1:
      ehca_free_fw_ctrlblock(rblock);

      return ret;
}

int ehca_query_gid(struct ib_device *ibdev, u8 port,
               int index, union ib_gid *gid)
{
      int ret = 0;
      u64 h_ret;
      struct ehca_shca *shca = container_of(ibdev, struct ehca_shca,
                                    ib_device);
      struct hipz_query_port *rblock;

      if (index > 255) {
            ehca_err(&shca->ib_device, "Invalid index: %x.", index);
            return -EINVAL;
      }

      rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL);
      if (!rblock) {
            ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
            return -ENOMEM;
      }

      h_ret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock);
      if (h_ret != H_SUCCESS) {
            ehca_err(&shca->ib_device, "Can't query port properties");
            ret = -EINVAL;
            goto query_gid1;
      }

      memcpy(&gid->raw[0], &rblock->gid_prefix, sizeof(u64));
      memcpy(&gid->raw[8], &rblock->guid_entries[index], sizeof(u64));

query_gid1:
      ehca_free_fw_ctrlblock(rblock);

      return ret;
}

const u32 allowed_port_caps = (
      IB_PORT_SM | IB_PORT_LED_INFO_SUP | IB_PORT_CM_SUP |
      IB_PORT_SNMP_TUNNEL_SUP | IB_PORT_DEVICE_MGMT_SUP |
      IB_PORT_VENDOR_CLASS_SUP);

int ehca_modify_port(struct ib_device *ibdev,
                 u8 port, int port_modify_mask,
                 struct ib_port_modify *props)
{
      int ret = 0;
      struct ehca_shca *shca;
      struct hipz_query_port *rblock;
      u32 cap;
      u64 hret;

      shca = container_of(ibdev, struct ehca_shca, ib_device);
      if ((props->set_port_cap_mask | props->clr_port_cap_mask)
          & ~allowed_port_caps) {
            ehca_err(&shca->ib_device, "Non-changeable bits set in masks  "
                   "set=%x  clr=%x  allowed=%x", props->set_port_cap_mask,
                   props->clr_port_cap_mask, allowed_port_caps);
            return -EINVAL;
      }

      if (mutex_lock_interruptible(&shca->modify_mutex))
            return -ERESTARTSYS;

      rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL);
      if (!rblock) {
            ehca_err(&shca->ib_device,  "Can't allocate rblock memory.");
            ret = -ENOMEM;
            goto modify_port1;
      }

      hret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock);
      if (hret != H_SUCCESS) {
            ehca_err(&shca->ib_device, "Can't query port properties");
            ret = -EINVAL;
            goto modify_port2;
      }

      cap = (rblock->capability_mask | props->set_port_cap_mask)
            & ~props->clr_port_cap_mask;

      hret = hipz_h_modify_port(shca->ipz_hca_handle, port,
                          cap, props->init_type, port_modify_mask);
      if (hret != H_SUCCESS) {
            ehca_err(&shca->ib_device, "Modify port failed  h_ret=%li",
                   hret);
            ret = -EINVAL;
      }

modify_port2:
      ehca_free_fw_ctrlblock(rblock);

modify_port1:
      mutex_unlock(&shca->modify_mutex);

      return ret;
}

Generated by  Doxygen 1.6.0   Back to index