![Tom Tucker](/assets/img/avatar_default.png)
Modifications to the existing rdma header files, core files, drivers, and ulp files to support iWARP, including: - Hook iWARP CM into the build system and use it in rdma_cm. - Convert enum ib_node_type to enum rdma_node_type, which includes the possibility of RDMA_NODE_RNIC, and update everything for this. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
852 lines
19 KiB
C
852 lines
19 KiB
C
/*
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* Copyright (c) 2004 Mellanox Technologies Ltd. All rights reserved.
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* Copyright (c) 2004 Infinicon Corporation. All rights reserved.
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* Copyright (c) 2004 Intel Corporation. All rights reserved.
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* Copyright (c) 2004 Topspin Corporation. All rights reserved.
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* Copyright (c) 2004 Voltaire Corporation. 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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*
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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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* $Id: verbs.c 1349 2004-12-16 21:09:43Z roland $
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*/
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#include <linux/errno.h>
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#include <linux/err.h>
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#include <linux/string.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/ib_cache.h>
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int ib_rate_to_mult(enum ib_rate rate)
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{
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switch (rate) {
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case IB_RATE_2_5_GBPS: return 1;
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case IB_RATE_5_GBPS: return 2;
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case IB_RATE_10_GBPS: return 4;
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case IB_RATE_20_GBPS: return 8;
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case IB_RATE_30_GBPS: return 12;
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case IB_RATE_40_GBPS: return 16;
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case IB_RATE_60_GBPS: return 24;
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case IB_RATE_80_GBPS: return 32;
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case IB_RATE_120_GBPS: return 48;
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default: return -1;
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}
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}
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EXPORT_SYMBOL(ib_rate_to_mult);
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enum ib_rate mult_to_ib_rate(int mult)
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{
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switch (mult) {
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case 1: return IB_RATE_2_5_GBPS;
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case 2: return IB_RATE_5_GBPS;
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case 4: return IB_RATE_10_GBPS;
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case 8: return IB_RATE_20_GBPS;
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case 12: return IB_RATE_30_GBPS;
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case 16: return IB_RATE_40_GBPS;
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case 24: return IB_RATE_60_GBPS;
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case 32: return IB_RATE_80_GBPS;
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case 48: return IB_RATE_120_GBPS;
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default: return IB_RATE_PORT_CURRENT;
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}
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}
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EXPORT_SYMBOL(mult_to_ib_rate);
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enum rdma_transport_type
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rdma_node_get_transport(enum rdma_node_type node_type)
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{
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switch (node_type) {
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case RDMA_NODE_IB_CA:
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case RDMA_NODE_IB_SWITCH:
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case RDMA_NODE_IB_ROUTER:
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return RDMA_TRANSPORT_IB;
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case RDMA_NODE_RNIC:
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return RDMA_TRANSPORT_IWARP;
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default:
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BUG();
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return 0;
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}
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}
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EXPORT_SYMBOL(rdma_node_get_transport);
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/* Protection domains */
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struct ib_pd *ib_alloc_pd(struct ib_device *device)
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{
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struct ib_pd *pd;
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pd = device->alloc_pd(device, NULL, NULL);
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if (!IS_ERR(pd)) {
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pd->device = device;
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pd->uobject = NULL;
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atomic_set(&pd->usecnt, 0);
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}
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return pd;
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}
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EXPORT_SYMBOL(ib_alloc_pd);
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int ib_dealloc_pd(struct ib_pd *pd)
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{
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if (atomic_read(&pd->usecnt))
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return -EBUSY;
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return pd->device->dealloc_pd(pd);
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}
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EXPORT_SYMBOL(ib_dealloc_pd);
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/* Address handles */
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struct ib_ah *ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr)
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{
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struct ib_ah *ah;
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ah = pd->device->create_ah(pd, ah_attr);
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if (!IS_ERR(ah)) {
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ah->device = pd->device;
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ah->pd = pd;
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ah->uobject = NULL;
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atomic_inc(&pd->usecnt);
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}
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return ah;
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}
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EXPORT_SYMBOL(ib_create_ah);
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int ib_init_ah_from_wc(struct ib_device *device, u8 port_num, struct ib_wc *wc,
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struct ib_grh *grh, struct ib_ah_attr *ah_attr)
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{
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u32 flow_class;
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u16 gid_index;
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int ret;
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memset(ah_attr, 0, sizeof *ah_attr);
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ah_attr->dlid = wc->slid;
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ah_attr->sl = wc->sl;
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ah_attr->src_path_bits = wc->dlid_path_bits;
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ah_attr->port_num = port_num;
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if (wc->wc_flags & IB_WC_GRH) {
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ah_attr->ah_flags = IB_AH_GRH;
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ah_attr->grh.dgid = grh->sgid;
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ret = ib_find_cached_gid(device, &grh->dgid, &port_num,
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&gid_index);
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if (ret)
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return ret;
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ah_attr->grh.sgid_index = (u8) gid_index;
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flow_class = be32_to_cpu(grh->version_tclass_flow);
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ah_attr->grh.flow_label = flow_class & 0xFFFFF;
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ah_attr->grh.hop_limit = grh->hop_limit;
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ah_attr->grh.traffic_class = (flow_class >> 20) & 0xFF;
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}
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return 0;
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}
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EXPORT_SYMBOL(ib_init_ah_from_wc);
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struct ib_ah *ib_create_ah_from_wc(struct ib_pd *pd, struct ib_wc *wc,
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struct ib_grh *grh, u8 port_num)
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{
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struct ib_ah_attr ah_attr;
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int ret;
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ret = ib_init_ah_from_wc(pd->device, port_num, wc, grh, &ah_attr);
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if (ret)
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return ERR_PTR(ret);
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return ib_create_ah(pd, &ah_attr);
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}
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EXPORT_SYMBOL(ib_create_ah_from_wc);
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int ib_modify_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr)
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{
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return ah->device->modify_ah ?
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ah->device->modify_ah(ah, ah_attr) :
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-ENOSYS;
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}
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EXPORT_SYMBOL(ib_modify_ah);
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int ib_query_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr)
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{
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return ah->device->query_ah ?
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ah->device->query_ah(ah, ah_attr) :
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-ENOSYS;
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}
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EXPORT_SYMBOL(ib_query_ah);
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int ib_destroy_ah(struct ib_ah *ah)
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{
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struct ib_pd *pd;
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int ret;
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pd = ah->pd;
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ret = ah->device->destroy_ah(ah);
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if (!ret)
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atomic_dec(&pd->usecnt);
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return ret;
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}
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EXPORT_SYMBOL(ib_destroy_ah);
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/* Shared receive queues */
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struct ib_srq *ib_create_srq(struct ib_pd *pd,
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struct ib_srq_init_attr *srq_init_attr)
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{
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struct ib_srq *srq;
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if (!pd->device->create_srq)
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return ERR_PTR(-ENOSYS);
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srq = pd->device->create_srq(pd, srq_init_attr, NULL);
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if (!IS_ERR(srq)) {
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srq->device = pd->device;
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srq->pd = pd;
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srq->uobject = NULL;
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srq->event_handler = srq_init_attr->event_handler;
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srq->srq_context = srq_init_attr->srq_context;
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atomic_inc(&pd->usecnt);
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atomic_set(&srq->usecnt, 0);
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}
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return srq;
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}
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EXPORT_SYMBOL(ib_create_srq);
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int ib_modify_srq(struct ib_srq *srq,
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struct ib_srq_attr *srq_attr,
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enum ib_srq_attr_mask srq_attr_mask)
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{
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return srq->device->modify_srq(srq, srq_attr, srq_attr_mask, NULL);
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}
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EXPORT_SYMBOL(ib_modify_srq);
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int ib_query_srq(struct ib_srq *srq,
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struct ib_srq_attr *srq_attr)
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{
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return srq->device->query_srq ?
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srq->device->query_srq(srq, srq_attr) : -ENOSYS;
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}
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EXPORT_SYMBOL(ib_query_srq);
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int ib_destroy_srq(struct ib_srq *srq)
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{
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struct ib_pd *pd;
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int ret;
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if (atomic_read(&srq->usecnt))
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return -EBUSY;
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pd = srq->pd;
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ret = srq->device->destroy_srq(srq);
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if (!ret)
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atomic_dec(&pd->usecnt);
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return ret;
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}
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EXPORT_SYMBOL(ib_destroy_srq);
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/* Queue pairs */
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struct ib_qp *ib_create_qp(struct ib_pd *pd,
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struct ib_qp_init_attr *qp_init_attr)
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{
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struct ib_qp *qp;
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qp = pd->device->create_qp(pd, qp_init_attr, NULL);
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if (!IS_ERR(qp)) {
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qp->device = pd->device;
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qp->pd = pd;
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qp->send_cq = qp_init_attr->send_cq;
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qp->recv_cq = qp_init_attr->recv_cq;
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qp->srq = qp_init_attr->srq;
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qp->uobject = NULL;
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qp->event_handler = qp_init_attr->event_handler;
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qp->qp_context = qp_init_attr->qp_context;
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qp->qp_type = qp_init_attr->qp_type;
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atomic_inc(&pd->usecnt);
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atomic_inc(&qp_init_attr->send_cq->usecnt);
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atomic_inc(&qp_init_attr->recv_cq->usecnt);
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if (qp_init_attr->srq)
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atomic_inc(&qp_init_attr->srq->usecnt);
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}
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return qp;
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}
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EXPORT_SYMBOL(ib_create_qp);
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static const struct {
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int valid;
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enum ib_qp_attr_mask req_param[IB_QPT_RAW_ETY + 1];
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enum ib_qp_attr_mask opt_param[IB_QPT_RAW_ETY + 1];
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} qp_state_table[IB_QPS_ERR + 1][IB_QPS_ERR + 1] = {
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[IB_QPS_RESET] = {
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[IB_QPS_RESET] = { .valid = 1 },
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[IB_QPS_ERR] = { .valid = 1 },
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[IB_QPS_INIT] = {
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.valid = 1,
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.req_param = {
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[IB_QPT_UD] = (IB_QP_PKEY_INDEX |
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IB_QP_PORT |
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IB_QP_QKEY),
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[IB_QPT_UC] = (IB_QP_PKEY_INDEX |
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IB_QP_PORT |
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IB_QP_ACCESS_FLAGS),
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[IB_QPT_RC] = (IB_QP_PKEY_INDEX |
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IB_QP_PORT |
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IB_QP_ACCESS_FLAGS),
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[IB_QPT_SMI] = (IB_QP_PKEY_INDEX |
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IB_QP_QKEY),
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[IB_QPT_GSI] = (IB_QP_PKEY_INDEX |
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IB_QP_QKEY),
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}
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},
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},
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[IB_QPS_INIT] = {
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[IB_QPS_RESET] = { .valid = 1 },
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[IB_QPS_ERR] = { .valid = 1 },
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[IB_QPS_INIT] = {
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.valid = 1,
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.opt_param = {
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[IB_QPT_UD] = (IB_QP_PKEY_INDEX |
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IB_QP_PORT |
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IB_QP_QKEY),
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[IB_QPT_UC] = (IB_QP_PKEY_INDEX |
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IB_QP_PORT |
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IB_QP_ACCESS_FLAGS),
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[IB_QPT_RC] = (IB_QP_PKEY_INDEX |
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IB_QP_PORT |
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IB_QP_ACCESS_FLAGS),
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[IB_QPT_SMI] = (IB_QP_PKEY_INDEX |
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IB_QP_QKEY),
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[IB_QPT_GSI] = (IB_QP_PKEY_INDEX |
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IB_QP_QKEY),
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}
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},
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[IB_QPS_RTR] = {
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.valid = 1,
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.req_param = {
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[IB_QPT_UC] = (IB_QP_AV |
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IB_QP_PATH_MTU |
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IB_QP_DEST_QPN |
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IB_QP_RQ_PSN),
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[IB_QPT_RC] = (IB_QP_AV |
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IB_QP_PATH_MTU |
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IB_QP_DEST_QPN |
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IB_QP_RQ_PSN |
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IB_QP_MAX_DEST_RD_ATOMIC |
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IB_QP_MIN_RNR_TIMER),
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},
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.opt_param = {
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[IB_QPT_UD] = (IB_QP_PKEY_INDEX |
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IB_QP_QKEY),
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[IB_QPT_UC] = (IB_QP_ALT_PATH |
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IB_QP_ACCESS_FLAGS |
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IB_QP_PKEY_INDEX),
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[IB_QPT_RC] = (IB_QP_ALT_PATH |
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IB_QP_ACCESS_FLAGS |
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IB_QP_PKEY_INDEX),
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[IB_QPT_SMI] = (IB_QP_PKEY_INDEX |
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IB_QP_QKEY),
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[IB_QPT_GSI] = (IB_QP_PKEY_INDEX |
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IB_QP_QKEY),
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}
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}
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},
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[IB_QPS_RTR] = {
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[IB_QPS_RESET] = { .valid = 1 },
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[IB_QPS_ERR] = { .valid = 1 },
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[IB_QPS_RTS] = {
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.valid = 1,
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.req_param = {
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[IB_QPT_UD] = IB_QP_SQ_PSN,
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[IB_QPT_UC] = IB_QP_SQ_PSN,
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[IB_QPT_RC] = (IB_QP_TIMEOUT |
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IB_QP_RETRY_CNT |
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IB_QP_RNR_RETRY |
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IB_QP_SQ_PSN |
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IB_QP_MAX_QP_RD_ATOMIC),
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[IB_QPT_SMI] = IB_QP_SQ_PSN,
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[IB_QPT_GSI] = IB_QP_SQ_PSN,
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},
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.opt_param = {
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[IB_QPT_UD] = (IB_QP_CUR_STATE |
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IB_QP_QKEY),
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[IB_QPT_UC] = (IB_QP_CUR_STATE |
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IB_QP_ALT_PATH |
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IB_QP_ACCESS_FLAGS |
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IB_QP_PATH_MIG_STATE),
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[IB_QPT_RC] = (IB_QP_CUR_STATE |
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IB_QP_ALT_PATH |
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IB_QP_ACCESS_FLAGS |
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IB_QP_MIN_RNR_TIMER |
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IB_QP_PATH_MIG_STATE),
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[IB_QPT_SMI] = (IB_QP_CUR_STATE |
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IB_QP_QKEY),
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[IB_QPT_GSI] = (IB_QP_CUR_STATE |
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IB_QP_QKEY),
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}
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}
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},
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[IB_QPS_RTS] = {
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[IB_QPS_RESET] = { .valid = 1 },
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[IB_QPS_ERR] = { .valid = 1 },
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[IB_QPS_RTS] = {
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.valid = 1,
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.opt_param = {
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[IB_QPT_UD] = (IB_QP_CUR_STATE |
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IB_QP_QKEY),
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[IB_QPT_UC] = (IB_QP_CUR_STATE |
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IB_QP_ACCESS_FLAGS |
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IB_QP_ALT_PATH |
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IB_QP_PATH_MIG_STATE),
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[IB_QPT_RC] = (IB_QP_CUR_STATE |
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IB_QP_ACCESS_FLAGS |
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IB_QP_ALT_PATH |
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IB_QP_PATH_MIG_STATE |
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IB_QP_MIN_RNR_TIMER),
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[IB_QPT_SMI] = (IB_QP_CUR_STATE |
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IB_QP_QKEY),
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[IB_QPT_GSI] = (IB_QP_CUR_STATE |
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IB_QP_QKEY),
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}
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},
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[IB_QPS_SQD] = {
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.valid = 1,
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.opt_param = {
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[IB_QPT_UD] = IB_QP_EN_SQD_ASYNC_NOTIFY,
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[IB_QPT_UC] = IB_QP_EN_SQD_ASYNC_NOTIFY,
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[IB_QPT_RC] = IB_QP_EN_SQD_ASYNC_NOTIFY,
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[IB_QPT_SMI] = IB_QP_EN_SQD_ASYNC_NOTIFY,
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[IB_QPT_GSI] = IB_QP_EN_SQD_ASYNC_NOTIFY
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}
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},
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},
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[IB_QPS_SQD] = {
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[IB_QPS_RESET] = { .valid = 1 },
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[IB_QPS_ERR] = { .valid = 1 },
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[IB_QPS_RTS] = {
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.valid = 1,
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.opt_param = {
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[IB_QPT_UD] = (IB_QP_CUR_STATE |
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IB_QP_QKEY),
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[IB_QPT_UC] = (IB_QP_CUR_STATE |
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IB_QP_ALT_PATH |
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IB_QP_ACCESS_FLAGS |
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IB_QP_PATH_MIG_STATE),
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[IB_QPT_RC] = (IB_QP_CUR_STATE |
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|
IB_QP_ALT_PATH |
|
|
IB_QP_ACCESS_FLAGS |
|
|
IB_QP_MIN_RNR_TIMER |
|
|
IB_QP_PATH_MIG_STATE),
|
|
[IB_QPT_SMI] = (IB_QP_CUR_STATE |
|
|
IB_QP_QKEY),
|
|
[IB_QPT_GSI] = (IB_QP_CUR_STATE |
|
|
IB_QP_QKEY),
|
|
}
|
|
},
|
|
[IB_QPS_SQD] = {
|
|
.valid = 1,
|
|
.opt_param = {
|
|
[IB_QPT_UD] = (IB_QP_PKEY_INDEX |
|
|
IB_QP_QKEY),
|
|
[IB_QPT_UC] = (IB_QP_AV |
|
|
IB_QP_ALT_PATH |
|
|
IB_QP_ACCESS_FLAGS |
|
|
IB_QP_PKEY_INDEX |
|
|
IB_QP_PATH_MIG_STATE),
|
|
[IB_QPT_RC] = (IB_QP_PORT |
|
|
IB_QP_AV |
|
|
IB_QP_TIMEOUT |
|
|
IB_QP_RETRY_CNT |
|
|
IB_QP_RNR_RETRY |
|
|
IB_QP_MAX_QP_RD_ATOMIC |
|
|
IB_QP_MAX_DEST_RD_ATOMIC |
|
|
IB_QP_ALT_PATH |
|
|
IB_QP_ACCESS_FLAGS |
|
|
IB_QP_PKEY_INDEX |
|
|
IB_QP_MIN_RNR_TIMER |
|
|
IB_QP_PATH_MIG_STATE),
|
|
[IB_QPT_SMI] = (IB_QP_PKEY_INDEX |
|
|
IB_QP_QKEY),
|
|
[IB_QPT_GSI] = (IB_QP_PKEY_INDEX |
|
|
IB_QP_QKEY),
|
|
}
|
|
}
|
|
},
|
|
[IB_QPS_SQE] = {
|
|
[IB_QPS_RESET] = { .valid = 1 },
|
|
[IB_QPS_ERR] = { .valid = 1 },
|
|
[IB_QPS_RTS] = {
|
|
.valid = 1,
|
|
.opt_param = {
|
|
[IB_QPT_UD] = (IB_QP_CUR_STATE |
|
|
IB_QP_QKEY),
|
|
[IB_QPT_UC] = (IB_QP_CUR_STATE |
|
|
IB_QP_ACCESS_FLAGS),
|
|
[IB_QPT_SMI] = (IB_QP_CUR_STATE |
|
|
IB_QP_QKEY),
|
|
[IB_QPT_GSI] = (IB_QP_CUR_STATE |
|
|
IB_QP_QKEY),
|
|
}
|
|
}
|
|
},
|
|
[IB_QPS_ERR] = {
|
|
[IB_QPS_RESET] = { .valid = 1 },
|
|
[IB_QPS_ERR] = { .valid = 1 }
|
|
}
|
|
};
|
|
|
|
int ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state,
|
|
enum ib_qp_type type, enum ib_qp_attr_mask mask)
|
|
{
|
|
enum ib_qp_attr_mask req_param, opt_param;
|
|
|
|
if (cur_state < 0 || cur_state > IB_QPS_ERR ||
|
|
next_state < 0 || next_state > IB_QPS_ERR)
|
|
return 0;
|
|
|
|
if (mask & IB_QP_CUR_STATE &&
|
|
cur_state != IB_QPS_RTR && cur_state != IB_QPS_RTS &&
|
|
cur_state != IB_QPS_SQD && cur_state != IB_QPS_SQE)
|
|
return 0;
|
|
|
|
if (!qp_state_table[cur_state][next_state].valid)
|
|
return 0;
|
|
|
|
req_param = qp_state_table[cur_state][next_state].req_param[type];
|
|
opt_param = qp_state_table[cur_state][next_state].opt_param[type];
|
|
|
|
if ((mask & req_param) != req_param)
|
|
return 0;
|
|
|
|
if (mask & ~(req_param | opt_param | IB_QP_STATE))
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
EXPORT_SYMBOL(ib_modify_qp_is_ok);
|
|
|
|
int ib_modify_qp(struct ib_qp *qp,
|
|
struct ib_qp_attr *qp_attr,
|
|
int qp_attr_mask)
|
|
{
|
|
return qp->device->modify_qp(qp, qp_attr, qp_attr_mask, NULL);
|
|
}
|
|
EXPORT_SYMBOL(ib_modify_qp);
|
|
|
|
int ib_query_qp(struct ib_qp *qp,
|
|
struct ib_qp_attr *qp_attr,
|
|
int qp_attr_mask,
|
|
struct ib_qp_init_attr *qp_init_attr)
|
|
{
|
|
return qp->device->query_qp ?
|
|
qp->device->query_qp(qp, qp_attr, qp_attr_mask, qp_init_attr) :
|
|
-ENOSYS;
|
|
}
|
|
EXPORT_SYMBOL(ib_query_qp);
|
|
|
|
int ib_destroy_qp(struct ib_qp *qp)
|
|
{
|
|
struct ib_pd *pd;
|
|
struct ib_cq *scq, *rcq;
|
|
struct ib_srq *srq;
|
|
int ret;
|
|
|
|
pd = qp->pd;
|
|
scq = qp->send_cq;
|
|
rcq = qp->recv_cq;
|
|
srq = qp->srq;
|
|
|
|
ret = qp->device->destroy_qp(qp);
|
|
if (!ret) {
|
|
atomic_dec(&pd->usecnt);
|
|
atomic_dec(&scq->usecnt);
|
|
atomic_dec(&rcq->usecnt);
|
|
if (srq)
|
|
atomic_dec(&srq->usecnt);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(ib_destroy_qp);
|
|
|
|
/* Completion queues */
|
|
|
|
struct ib_cq *ib_create_cq(struct ib_device *device,
|
|
ib_comp_handler comp_handler,
|
|
void (*event_handler)(struct ib_event *, void *),
|
|
void *cq_context, int cqe)
|
|
{
|
|
struct ib_cq *cq;
|
|
|
|
cq = device->create_cq(device, cqe, NULL, NULL);
|
|
|
|
if (!IS_ERR(cq)) {
|
|
cq->device = device;
|
|
cq->uobject = NULL;
|
|
cq->comp_handler = comp_handler;
|
|
cq->event_handler = event_handler;
|
|
cq->cq_context = cq_context;
|
|
atomic_set(&cq->usecnt, 0);
|
|
}
|
|
|
|
return cq;
|
|
}
|
|
EXPORT_SYMBOL(ib_create_cq);
|
|
|
|
int ib_destroy_cq(struct ib_cq *cq)
|
|
{
|
|
if (atomic_read(&cq->usecnt))
|
|
return -EBUSY;
|
|
|
|
return cq->device->destroy_cq(cq);
|
|
}
|
|
EXPORT_SYMBOL(ib_destroy_cq);
|
|
|
|
int ib_resize_cq(struct ib_cq *cq, int cqe)
|
|
{
|
|
return cq->device->resize_cq ?
|
|
cq->device->resize_cq(cq, cqe, NULL) : -ENOSYS;
|
|
}
|
|
EXPORT_SYMBOL(ib_resize_cq);
|
|
|
|
/* Memory regions */
|
|
|
|
struct ib_mr *ib_get_dma_mr(struct ib_pd *pd, int mr_access_flags)
|
|
{
|
|
struct ib_mr *mr;
|
|
|
|
mr = pd->device->get_dma_mr(pd, mr_access_flags);
|
|
|
|
if (!IS_ERR(mr)) {
|
|
mr->device = pd->device;
|
|
mr->pd = pd;
|
|
mr->uobject = NULL;
|
|
atomic_inc(&pd->usecnt);
|
|
atomic_set(&mr->usecnt, 0);
|
|
}
|
|
|
|
return mr;
|
|
}
|
|
EXPORT_SYMBOL(ib_get_dma_mr);
|
|
|
|
struct ib_mr *ib_reg_phys_mr(struct ib_pd *pd,
|
|
struct ib_phys_buf *phys_buf_array,
|
|
int num_phys_buf,
|
|
int mr_access_flags,
|
|
u64 *iova_start)
|
|
{
|
|
struct ib_mr *mr;
|
|
|
|
mr = pd->device->reg_phys_mr(pd, phys_buf_array, num_phys_buf,
|
|
mr_access_flags, iova_start);
|
|
|
|
if (!IS_ERR(mr)) {
|
|
mr->device = pd->device;
|
|
mr->pd = pd;
|
|
mr->uobject = NULL;
|
|
atomic_inc(&pd->usecnt);
|
|
atomic_set(&mr->usecnt, 0);
|
|
}
|
|
|
|
return mr;
|
|
}
|
|
EXPORT_SYMBOL(ib_reg_phys_mr);
|
|
|
|
int ib_rereg_phys_mr(struct ib_mr *mr,
|
|
int mr_rereg_mask,
|
|
struct ib_pd *pd,
|
|
struct ib_phys_buf *phys_buf_array,
|
|
int num_phys_buf,
|
|
int mr_access_flags,
|
|
u64 *iova_start)
|
|
{
|
|
struct ib_pd *old_pd;
|
|
int ret;
|
|
|
|
if (!mr->device->rereg_phys_mr)
|
|
return -ENOSYS;
|
|
|
|
if (atomic_read(&mr->usecnt))
|
|
return -EBUSY;
|
|
|
|
old_pd = mr->pd;
|
|
|
|
ret = mr->device->rereg_phys_mr(mr, mr_rereg_mask, pd,
|
|
phys_buf_array, num_phys_buf,
|
|
mr_access_flags, iova_start);
|
|
|
|
if (!ret && (mr_rereg_mask & IB_MR_REREG_PD)) {
|
|
atomic_dec(&old_pd->usecnt);
|
|
atomic_inc(&pd->usecnt);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(ib_rereg_phys_mr);
|
|
|
|
int ib_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr)
|
|
{
|
|
return mr->device->query_mr ?
|
|
mr->device->query_mr(mr, mr_attr) : -ENOSYS;
|
|
}
|
|
EXPORT_SYMBOL(ib_query_mr);
|
|
|
|
int ib_dereg_mr(struct ib_mr *mr)
|
|
{
|
|
struct ib_pd *pd;
|
|
int ret;
|
|
|
|
if (atomic_read(&mr->usecnt))
|
|
return -EBUSY;
|
|
|
|
pd = mr->pd;
|
|
ret = mr->device->dereg_mr(mr);
|
|
if (!ret)
|
|
atomic_dec(&pd->usecnt);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(ib_dereg_mr);
|
|
|
|
/* Memory windows */
|
|
|
|
struct ib_mw *ib_alloc_mw(struct ib_pd *pd)
|
|
{
|
|
struct ib_mw *mw;
|
|
|
|
if (!pd->device->alloc_mw)
|
|
return ERR_PTR(-ENOSYS);
|
|
|
|
mw = pd->device->alloc_mw(pd);
|
|
if (!IS_ERR(mw)) {
|
|
mw->device = pd->device;
|
|
mw->pd = pd;
|
|
mw->uobject = NULL;
|
|
atomic_inc(&pd->usecnt);
|
|
}
|
|
|
|
return mw;
|
|
}
|
|
EXPORT_SYMBOL(ib_alloc_mw);
|
|
|
|
int ib_dealloc_mw(struct ib_mw *mw)
|
|
{
|
|
struct ib_pd *pd;
|
|
int ret;
|
|
|
|
pd = mw->pd;
|
|
ret = mw->device->dealloc_mw(mw);
|
|
if (!ret)
|
|
atomic_dec(&pd->usecnt);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(ib_dealloc_mw);
|
|
|
|
/* "Fast" memory regions */
|
|
|
|
struct ib_fmr *ib_alloc_fmr(struct ib_pd *pd,
|
|
int mr_access_flags,
|
|
struct ib_fmr_attr *fmr_attr)
|
|
{
|
|
struct ib_fmr *fmr;
|
|
|
|
if (!pd->device->alloc_fmr)
|
|
return ERR_PTR(-ENOSYS);
|
|
|
|
fmr = pd->device->alloc_fmr(pd, mr_access_flags, fmr_attr);
|
|
if (!IS_ERR(fmr)) {
|
|
fmr->device = pd->device;
|
|
fmr->pd = pd;
|
|
atomic_inc(&pd->usecnt);
|
|
}
|
|
|
|
return fmr;
|
|
}
|
|
EXPORT_SYMBOL(ib_alloc_fmr);
|
|
|
|
int ib_unmap_fmr(struct list_head *fmr_list)
|
|
{
|
|
struct ib_fmr *fmr;
|
|
|
|
if (list_empty(fmr_list))
|
|
return 0;
|
|
|
|
fmr = list_entry(fmr_list->next, struct ib_fmr, list);
|
|
return fmr->device->unmap_fmr(fmr_list);
|
|
}
|
|
EXPORT_SYMBOL(ib_unmap_fmr);
|
|
|
|
int ib_dealloc_fmr(struct ib_fmr *fmr)
|
|
{
|
|
struct ib_pd *pd;
|
|
int ret;
|
|
|
|
pd = fmr->pd;
|
|
ret = fmr->device->dealloc_fmr(fmr);
|
|
if (!ret)
|
|
atomic_dec(&pd->usecnt);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(ib_dealloc_fmr);
|
|
|
|
/* Multicast groups */
|
|
|
|
int ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid)
|
|
{
|
|
if (!qp->device->attach_mcast)
|
|
return -ENOSYS;
|
|
if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD)
|
|
return -EINVAL;
|
|
|
|
return qp->device->attach_mcast(qp, gid, lid);
|
|
}
|
|
EXPORT_SYMBOL(ib_attach_mcast);
|
|
|
|
int ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid)
|
|
{
|
|
if (!qp->device->detach_mcast)
|
|
return -ENOSYS;
|
|
if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD)
|
|
return -EINVAL;
|
|
|
|
return qp->device->detach_mcast(qp, gid, lid);
|
|
}
|
|
EXPORT_SYMBOL(ib_detach_mcast);
|