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Subject[PATCH 18/22] ehca address vectors, multicast groups, protection domains
Date
From: Roland Dreier <rolandd@cisco.com>


---

drivers/infiniband/hw/ehca/ehca_av.c | 258 +++++++++++++++++++++++++++++++
drivers/infiniband/hw/ehca/ehca_mcast.c | 194 +++++++++++++++++++++++
drivers/infiniband/hw/ehca/ehca_pd.c | 100 ++++++++++++
3 files changed, 552 insertions(+), 0 deletions(-)

diff --git a/drivers/infiniband/hw/ehca/ehca_av.c b/drivers/infiniband/hw/ehca/ehca_av.c
new file mode 100644
index 0000000..f5382c2
--- /dev/null
+++ b/drivers/infiniband/hw/ehca/ehca_av.c
@@ -0,0 +1,258 @@
+/*
+ * IBM eServer eHCA Infiniband device driver for Linux on POWER
+ *
+ * adress vector functions
+ *
+ * Authors: Reinhard Ernst <rernst@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.
+ *
+ * $Id: ehca_av.c,v 1.28 2006/02/06 10:17:34 schickhj Exp $
+ */
+
+
+#define DEB_PREFIX "ehav"
+
+#include "ehca_kernel.h"
+#include "ehca_tools.h"
+#include "ehca_iverbs.h"
+#include "hcp_if.h"
+
+struct ib_ah *ehca_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr)
+{
+ extern int ehca_static_rate;
+ int retcode = 0;
+ struct ehca_av *av = NULL;
+
+ EHCA_CHECK_PD_P(pd);
+ EHCA_CHECK_ADR_P(ah_attr);
+
+ EDEB_EN(7,"pd=%p ah_attr=%p", pd, ah_attr);
+
+ av = ehca_av_new();
+ if (!av) {
+ EDEB_ERR(4,"Out of memory pd=%p ah_attr=%p", pd, ah_attr);
+ retcode = -ENOMEM;
+ goto create_ah_exit0;
+ }
+
+ av->av.sl = ah_attr->sl;
+ av->av.dlid = ntohs(ah_attr->dlid);
+ av->av.slid_path_bits = ah_attr->src_path_bits;
+
+ if (ehca_static_rate < 0) {
+ av->av.ipd = ah_attr->static_rate;
+ } else {
+ av->av.ipd = ehca_static_rate;
+ }
+
+ av->av.lnh = ah_attr->ah_flags;
+ av->av.grh.word_0 |= EHCA_BMASK_SET(GRH_IPVERSION_MASK, 6);
+ av->av.grh.word_0 |= EHCA_BMASK_SET(GRH_TCLASS_MASK,
+ ah_attr->grh.traffic_class);
+ av->av.grh.word_0 |= EHCA_BMASK_SET(GRH_FLOWLABEL_MASK,
+ ah_attr->grh.flow_label);
+ av->av.grh.word_0 |= EHCA_BMASK_SET(GRH_HOPLIMIT_MASK,
+ ah_attr->grh.hop_limit);
+ av->av.grh.word_0 |= EHCA_BMASK_SET(GRH_NEXTHEADER_MASK, 0x1B);
+ /* IB transport */
+ av->av.grh.word_0 = be64_to_cpu(av->av.grh.word_0);
+ /* set sgid in grh.word_1 */
+ if (ah_attr->ah_flags & IB_AH_GRH) {
+ int rc = 0;
+ struct ib_port_attr port_attr;
+ union ib_gid gid;
+ memset(&port_attr, 0, sizeof(port_attr));
+ rc = ehca_query_port(pd->device, ah_attr->port_num,
+ &port_attr);
+ if (rc != 0) { /* invalid port number */
+ retcode = -EINVAL;
+ EDEB_ERR(4, "Invalid port number "
+ "ehca_query_port() returned %x "
+ "pd=%p ah_attr=%p", rc, pd, ah_attr);
+ goto create_ah_exit1;
+ }
+ memset(&gid, 0, sizeof(gid));
+ rc = ehca_query_gid(pd->device,
+ ah_attr->port_num,
+ ah_attr->grh.sgid_index, &gid);
+ if (rc != 0) {
+ retcode = -EINVAL;
+ EDEB_ERR(4, "Failed to retrieve sgid "
+ "ehca_query_gid() returned %x "
+ "pd=%p ah_attr=%p", rc, pd, ah_attr);
+ goto create_ah_exit1;
+ }
+ memcpy(&av->av.grh.word_1, &gid, sizeof(gid));
+ }
+ /* for the time beeing we use a hard coded PMTU of 2048 Bytes */
+ av->av.pmtu = 4; /* TODO */
+
+ /* dgid comes in grh.word_3 */
+ memcpy(&av->av.grh.word_3, &ah_attr->grh.dgid,
+ sizeof(ah_attr->grh.dgid));
+
+ EHCA_REGISTER_AV(device, pd);
+
+ EDEB_EX(7,"pd=%p ah_attr=%p av=%p", pd, ah_attr, av);
+ return (&av->ib_ah);
+
+ create_ah_exit1:
+ ehca_av_delete(av);
+
+ create_ah_exit0:
+ EDEB_EX(7,"retcode=%x pd=%p ah_attr=%p", retcode, pd, ah_attr);
+ return ERR_PTR(retcode);
+}
+
+int ehca_modify_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr)
+{
+ struct ehca_av *av = NULL;
+ struct ehca_ud_av new_ehca_av;
+ int ret = 0;
+
+ EHCA_CHECK_AV(ah);
+ EHCA_CHECK_ADR(ah_attr);
+
+ EDEB_EN(7,"ah=%p ah_attr=%p", ah, ah_attr);
+
+ memset(&new_ehca_av, 0, sizeof(new_ehca_av));
+ new_ehca_av.sl = ah_attr->sl;
+ new_ehca_av.dlid = ntohs(ah_attr->dlid);
+ new_ehca_av.slid_path_bits = ah_attr->src_path_bits;
+ new_ehca_av.ipd = ah_attr->static_rate;
+ new_ehca_av.lnh = EHCA_BMASK_SET(GRH_FLAG_MASK,
+ ((ah_attr->ah_flags & IB_AH_GRH) > 0));
+ new_ehca_av.grh.word_0 = EHCA_BMASK_SET(GRH_TCLASS_MASK,
+ ah_attr->grh.traffic_class);
+ new_ehca_av.grh.word_0 |= EHCA_BMASK_SET(GRH_FLOWLABEL_MASK,
+ ah_attr->grh.flow_label);
+ new_ehca_av.grh.word_0 |= EHCA_BMASK_SET(GRH_HOPLIMIT_MASK,
+ ah_attr->grh.hop_limit);
+ new_ehca_av.grh.word_0 |= EHCA_BMASK_SET(GRH_NEXTHEADER_MASK, 0x1b);
+ new_ehca_av.grh.word_0 = be64_to_cpu(new_ehca_av.grh.word_0);
+
+ /* set sgid in grh.word_1 */
+ if (ah_attr->ah_flags & IB_AH_GRH) {
+ int rc = 0;
+ struct ib_port_attr port_attr;
+ union ib_gid gid;
+ memset(&port_attr, 0, sizeof(port_attr));
+ rc = ehca_query_port(ah->device, ah_attr->port_num,
+ &port_attr);
+ if (rc != 0) { /* invalid port number */
+ ret = -EINVAL;
+ EDEB_ERR(4, "Invalid port number "
+ "ehca_query_port() returned %x "
+ "ah=%p ah_attr=%p port_num=%x",
+ rc, ah, ah_attr, ah_attr->port_num);
+ goto modify_ah_exit1;
+ }
+ memset(&gid, 0, sizeof(gid));
+ rc = ehca_query_gid(ah->device,
+ ah_attr->port_num,
+ ah_attr->grh.sgid_index, &gid);
+ if (rc != 0) {
+ ret = -EINVAL;
+ EDEB_ERR(4,
+ "Failed to retrieve sgid "
+ "ehca_query_gid() returned %x "
+ "ah=%p ah_attr=%p port_num=%x "
+ "sgid_index=%x",
+ rc, ah, ah_attr, ah_attr->port_num,
+ ah_attr->grh.sgid_index);
+ goto modify_ah_exit1;
+ }
+ memcpy(&new_ehca_av.grh.word_1, &gid, sizeof(gid));
+ }
+
+ new_ehca_av.pmtu = 4; /* TODO: see comment in create_ah() */
+
+ memcpy(&new_ehca_av.grh.word_3, &ah_attr->grh.dgid,
+ sizeof(ah_attr->grh.dgid));
+
+ av = container_of(ah, struct ehca_av, ib_ah);
+ av->av = new_ehca_av;
+
+ modify_ah_exit1:
+ EDEB_EX(7,"ret=%x ah=%p ah_attr=%p", ret, ah, ah_attr);
+
+ return ret;
+}
+
+int ehca_query_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr)
+{
+ int ret = 0;
+ struct ehca_av *av = NULL;
+
+ EHCA_CHECK_AV(ah);
+ EHCA_CHECK_ADR(ah_attr);
+
+ EDEB_EN(7,"ah=%p ah_attr=%p", ah, ah_attr);
+
+ av = container_of(ah, struct ehca_av, ib_ah);
+ memcpy(&ah_attr->grh.dgid, &av->av.grh.word_3,
+ sizeof(ah_attr->grh.dgid));
+ ah_attr->sl = av->av.sl;
+
+ ah_attr->dlid = av->av.dlid;
+
+ ah_attr->src_path_bits = av->av.slid_path_bits;
+ ah_attr->static_rate = av->av.ipd;
+ ah_attr->ah_flags = EHCA_BMASK_GET(GRH_FLAG_MASK, av->av.lnh);
+ ah_attr->grh.traffic_class = EHCA_BMASK_GET(GRH_TCLASS_MASK,
+ av->av.grh.word_0);
+ ah_attr->grh.hop_limit = EHCA_BMASK_GET(GRH_HOPLIMIT_MASK,
+ av->av.grh.word_0);
+ ah_attr->grh.flow_label = EHCA_BMASK_GET(GRH_FLOWLABEL_MASK,
+ av->av.grh.word_0);
+
+ EDEB_EX(7,"ah=%p ah_attr=%p ret=%x", ah, ah_attr, ret);
+ return ret;
+}
+
+int ehca_destroy_ah(struct ib_ah *ah)
+{
+ int ret = 0;
+
+ EHCA_CHECK_AV(ah);
+ EHCA_DEREGISTER_AV(ah);
+
+ EDEB_EN(7,"ah=%p", ah);
+
+ ehca_av_delete(container_of(ah, struct ehca_av, ib_ah));
+
+ EDEB_EX(7,"ret=%x ah=%p", ret, ah);
+ return ret;
+}
diff --git a/drivers/infiniband/hw/ehca/ehca_mcast.c b/drivers/infiniband/hw/ehca/ehca_mcast.c
new file mode 100644
index 0000000..b49bcf6
--- /dev/null
+++ b/drivers/infiniband/hw/ehca/ehca_mcast.c
@@ -0,0 +1,194 @@
+
+/*
+ * IBM eServer eHCA Infiniband device driver for Linux on POWER
+ *
+ * mcast functions
+ *
+ * Authors: Waleri Fomin <fomin@de.ibm.com>
+ * Reinhard Ernst <rernst@de.ibm.com>
+ * Hoang-Nam Nguyen <hnguyen@de.ibm.com>
+ * Heiko J Schick <schickhj@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.
+ *
+ * $Id: ehca_mcast.c,v 1.20 2006/02/06 10:17:34 schickhj Exp $
+ */
+
+#define DEB_PREFIX "mcas"
+
+#include "ehca_kernel.h"
+#include "ehca_classes.h"
+#include "ehca_tools.h"
+#include "hcp_if.h"
+#include "ehca_qes.h"
+#include <linux/module.h>
+#include <linux/err.h>
+#include "ehca_iverbs.h"
+
+#define MAX_MC_LID 0xFFFE
+#define MIN_MC_LID 0xC000 /* Multicast limits */
+#define EHCA_VALID_MULTICAST_GID(gid) ((gid)[0] == 0xFF)
+#define EHCA_VALID_MULTICAST_LID(lid) (((lid) >= MIN_MC_LID) && ((lid) <= MIN_MC_LID))
+
+int ehca_attach_mcast(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
+{
+ struct ehca_qp *my_qp = NULL;
+ struct ehca_shca *shca = NULL;
+ union ib_gid my_gid;
+ u64 hipz_rc = H_Success;
+ int retcode = 0;
+
+ EHCA_CHECK_ADR(ibqp);
+ EHCA_CHECK_ADR(gid);
+
+ my_qp = container_of(ibqp, struct ehca_qp, ib_qp);
+
+ EHCA_CHECK_QP(my_qp);
+ if (ibqp->qp_type != IB_QPT_UD) {
+ EDEB_ERR(4, "invalid qp_type %x gid, retcode=%x",
+ ibqp->qp_type, EINVAL);
+ return (-EINVAL);
+ }
+
+ shca = container_of(ibqp->pd->device, struct ehca_shca, ib_device);
+ EHCA_CHECK_ADR(shca);
+
+ if (!(EHCA_VALID_MULTICAST_GID(gid->raw))) {
+ EDEB_ERR(4, "gid is not valid mulitcast gid retcode=%x",
+ EINVAL);
+ return (-EINVAL);
+ } else if ((lid < MIN_MC_LID) || (lid > MAX_MC_LID)) {
+ EDEB_ERR(4, "lid=%x is not valid mulitcast lid retcode=%x",
+ lid, EINVAL);
+ return (-EINVAL);
+ }
+
+ memcpy(&my_gid.raw, gid->raw, sizeof(union ib_gid));
+
+ hipz_rc = hipz_h_attach_mcqp(shca->ipz_hca_handle,
+ my_qp->ipz_qp_handle,
+ my_qp->ehca_qp_core.galpas.kernel,
+ lid, my_gid);
+ if (H_Success != hipz_rc) {
+ EDEB_ERR(4,
+ "ehca_qp=%p qp_num=%x hipz_h_attach_mcqp() failed "
+ "hipz_rc=%lx", my_qp, ibqp->qp_num, hipz_rc);
+ }
+ retcode = ehca2ib_return_code(hipz_rc);
+
+ EDEB_EX(7, "mcast attach retcode=%x\n"
+ "ehca_qp=%p qp_num=%x lid=%x\n"
+ "my_gid= %x %x %x %x\n"
+ " %x %x %x %x\n"
+ " %x %x %x %x\n"
+ " %x %x %x %x\n",
+ retcode, my_qp, ibqp->qp_num, lid,
+ my_gid.raw[0], my_gid.raw[1],
+ my_gid.raw[2], my_gid.raw[3],
+ my_gid.raw[4], my_gid.raw[5],
+ my_gid.raw[6], my_gid.raw[7],
+ my_gid.raw[8], my_gid.raw[9],
+ my_gid.raw[10], my_gid.raw[11],
+ my_gid.raw[12], my_gid.raw[13],
+ my_gid.raw[14], my_gid.raw[15]);
+
+ return retcode;
+}
+
+int ehca_detach_mcast(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
+{
+ struct ehca_qp *my_qp = NULL;
+ struct ehca_shca *shca = NULL;
+ union ib_gid my_gid;
+ u64 hipz_rc = H_Success;
+ int retcode = 0;
+
+ EHCA_CHECK_ADR(ibqp);
+ EHCA_CHECK_ADR(gid);
+
+ my_qp = container_of(ibqp, struct ehca_qp, ib_qp);
+
+ EHCA_CHECK_QP(my_qp);
+ if (ibqp->qp_type != IB_QPT_UD) {
+ EDEB_ERR(4, "invalid qp_type %x gid, retcode=%x",
+ ibqp->qp_type, EINVAL);
+ return (-EINVAL);
+ }
+
+ shca = container_of(ibqp->pd->device, struct ehca_shca, ib_device);
+ EHCA_CHECK_ADR(shca);
+
+ if (!(EHCA_VALID_MULTICAST_GID(gid->raw))) {
+ EDEB_ERR(4, "gid is not valid mulitcast gid retcode=%x",
+ EINVAL);
+ return (-EINVAL);
+ } else if ((lid < MIN_MC_LID) || (lid > MAX_MC_LID)) {
+ EDEB_ERR(4, "lid=%x is not valid mulitcast lid retcode=%x",
+ lid, EINVAL);
+ return (-EINVAL);
+ }
+
+ EDEB_EN(7, "dgid=%p qp_numl=%x lid=%x",
+ gid, ibqp->qp_num, lid);
+
+ memcpy(&my_gid.raw, gid->raw, sizeof(union ib_gid));
+
+ hipz_rc = hipz_h_detach_mcqp(shca->ipz_hca_handle,
+ my_qp->ipz_qp_handle,
+ my_qp->ehca_qp_core.galpas.kernel,
+ lid, my_gid);
+ if (H_Success != hipz_rc) {
+ EDEB_ERR(4,
+ "ehca_qp=%p qp_num=%x hipz_h_detach_mcqp() failed "
+ "hipz_rc=%lx", my_qp, ibqp->qp_num, hipz_rc);
+ }
+ retcode = ehca2ib_return_code(hipz_rc);
+
+ EDEB_EX(7, "mcast detach retcode=%x\n"
+ "ehca_qp=%p qp_num=%x lid=%x\n"
+ "my_gid= %x %x %x %x\n"
+ " %x %x %x %x\n"
+ " %x %x %x %x\n"
+ " %x %x %x %x\n",
+ retcode, my_qp, ibqp->qp_num, lid,
+ my_gid.raw[0], my_gid.raw[1],
+ my_gid.raw[2], my_gid.raw[3],
+ my_gid.raw[4], my_gid.raw[5],
+ my_gid.raw[6], my_gid.raw[7],
+ my_gid.raw[8], my_gid.raw[9],
+ my_gid.raw[10], my_gid.raw[11],
+ my_gid.raw[12], my_gid.raw[13],
+ my_gid.raw[14], my_gid.raw[15]);
+
+ return retcode;
+}
diff --git a/drivers/infiniband/hw/ehca/ehca_pd.c b/drivers/infiniband/hw/ehca/ehca_pd.c
new file mode 100644
index 0000000..e110320
--- /dev/null
+++ b/drivers/infiniband/hw/ehca/ehca_pd.c
@@ -0,0 +1,100 @@
+/*
+ * IBM eServer eHCA Infiniband device driver for Linux on POWER
+ *
+ * PD functions
+ *
+ * Authors: 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.
+ *
+ * $Id: ehca_pd.c,v 1.25 2006/02/06 10:17:34 schickhj Exp $
+ */
+
+
+#define DEB_PREFIX "vpd "
+
+#include "ehca_kernel.h"
+#include "ehca_tools.h"
+#include "ehca_iverbs.h"
+
+struct ib_pd *ehca_alloc_pd(struct ib_device *device,
+ struct ib_ucontext *context, struct ib_udata *udata)
+{
+ struct ib_pd *mypd = NULL;
+ struct ehca_pd *pd = NULL;
+
+ EDEB_EN(7, "device=%p context=%p udata=%p", device, context, udata);
+
+ EHCA_CHECK_DEVICE_P(device);
+
+ pd = ehca_pd_new();
+ if (!pd) {
+ EDEB_ERR(4, "ERROR device=%p context=%p pd=%p "
+ "out of memory", device, context, mypd);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ /* kernel pd when (device,-1,0)
+ * user pd only if context != -1 */
+ if (context == NULL) {
+ /* kernel pds after init reuses always
+ * the one created in ehca_shca_reopen()
+ */
+ struct ehca_shca *shca = container_of(device, struct ehca_shca,
+ ib_device);
+ pd->fw_pd.value = shca->pd->fw_pd.value;
+ } else {
+ pd->fw_pd.value = (u64)pd;
+ }
+
+ mypd = &pd->ib_pd;
+
+ EHCA_REGISTER_PD(device, pd);
+
+ EDEB_EX(7, "device=%p context=%p pd=%p", device, context, mypd);
+
+ return (mypd);
+}
+
+int ehca_dealloc_pd(struct ib_pd *pd)
+{
+ int ret = 0;
+ EDEB_EN(7, "pd=%p", pd);
+
+ EHCA_CHECK_PD(pd);
+ EHCA_DEREGISTER_PD(pd);
+ ehca_pd_delete(container_of(pd, struct ehca_pd, ib_pd));
+
+ EDEB_EX(7, "pd=%p", pd);
+ return ret;
+}
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