e3cf00d0a8
This adds a driver that allows userspace to use UD-like QPs over a proprietary Cisco transport with Cisco's Virtual Interface Cards (VICs), including VIC 1240 and 1280 cards. Signed-off-by: Upinder Malhi <umalhi@cisco.com> Signed-off-by: Christian Benvenuti <benve@cisco.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
96 lines
2.8 KiB
C
96 lines
2.8 KiB
C
/*
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* Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
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*
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* This program is free software; you may redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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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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*/
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#ifndef USNIC_IB_QP_GRP_H_
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#define USNIC_IB_QP_GRP_H_
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#include <rdma/ib_verbs.h>
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#include "usnic_ib.h"
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#include "usnic_abi.h"
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#include "usnic_fwd.h"
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#include "usnic_vnic.h"
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#define MAX_QP_GRP_FILTERS 10
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#define DFLT_FILTER_IDX 0
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/*
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* The qp group struct represents all the hw resources needed to present a ib_qp
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*/
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struct usnic_ib_qp_grp {
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struct ib_qp ibqp;
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enum ib_qp_state state;
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int grp_id;
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struct usnic_fwd_dev *ufdev;
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short unsigned filter_cnt;
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struct usnic_fwd_filter filters[MAX_QP_GRP_FILTERS];
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struct list_head filter_hndls;
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enum usnic_transport_type transport;
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struct usnic_ib_ucontext *ctx;
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struct usnic_vnic_res_chunk **res_chunk_list;
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pid_t owner_pid;
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struct usnic_ib_vf *vf;
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struct list_head link;
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spinlock_t lock;
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struct kobject kobj;
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};
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static const struct
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usnic_vnic_res_spec min_transport_spec[USNIC_TRANSPORT_MAX] = {
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{ /*USNIC_TRANSPORT_UNKNOWN*/
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.resources = {
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{.type = USNIC_VNIC_RES_TYPE_EOL, .cnt = 0,},
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},
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},
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{ /*USNIC_TRANSPORT_ROCE_CUSTOM*/
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.resources = {
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{.type = USNIC_VNIC_RES_TYPE_WQ, .cnt = 1,},
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{.type = USNIC_VNIC_RES_TYPE_RQ, .cnt = 1,},
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{.type = USNIC_VNIC_RES_TYPE_CQ, .cnt = 1,},
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{.type = USNIC_VNIC_RES_TYPE_EOL, .cnt = 0,},
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},
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},
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};
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const char *usnic_ib_qp_grp_state_to_string(enum ib_qp_state state);
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int usnic_ib_qp_grp_dump_hdr(char *buf, int buf_sz);
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int usnic_ib_qp_grp_dump_rows(void *obj, char *buf, int buf_sz);
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struct usnic_ib_qp_grp *
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usnic_ib_qp_grp_create(struct usnic_fwd_dev *ufdev, struct usnic_ib_vf *vf,
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struct usnic_ib_pd *pd,
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struct usnic_vnic_res_spec *res_spec,
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enum usnic_transport_type transport);
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void usnic_ib_qp_grp_destroy(struct usnic_ib_qp_grp *qp_grp);
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int usnic_ib_qp_grp_modify(struct usnic_ib_qp_grp *qp_grp,
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enum ib_qp_state new_state,
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struct usnic_fwd_filter *fwd_filter);
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struct usnic_vnic_res_chunk
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*usnic_ib_qp_grp_get_chunk(struct usnic_ib_qp_grp *qp_grp,
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enum usnic_vnic_res_type type);
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static inline
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struct usnic_ib_qp_grp *to_uqp_grp(struct ib_qp *ibqp)
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{
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return container_of(ibqp, struct usnic_ib_qp_grp, ibqp);
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}
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#endif /* USNIC_IB_QP_GRP_H_ */
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