1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * This software is available to you under a choice of one of two
5*4882a593Smuzhiyun * licenses. You may choose to be licensed under the terms of the GNU
6*4882a593Smuzhiyun * General Public License (GPL) Version 2, available from the file
7*4882a593Smuzhiyun * COPYING in the main directory of this source tree, or the
8*4882a593Smuzhiyun * BSD license below:
9*4882a593Smuzhiyun *
10*4882a593Smuzhiyun * Redistribution and use in source and binary forms, with or
11*4882a593Smuzhiyun * without modification, are permitted provided that the following
12*4882a593Smuzhiyun * conditions are met:
13*4882a593Smuzhiyun *
14*4882a593Smuzhiyun * - Redistributions of source code must retain the above
15*4882a593Smuzhiyun * copyright notice, this list of conditions and the following
16*4882a593Smuzhiyun * disclaimer.
17*4882a593Smuzhiyun *
18*4882a593Smuzhiyun * - Redistributions in binary form must reproduce the above
19*4882a593Smuzhiyun * copyright notice, this list of conditions and the following
20*4882a593Smuzhiyun * disclaimer in the documentation and/or other materials
21*4882a593Smuzhiyun * provided with the distribution.
22*4882a593Smuzhiyun *
23*4882a593Smuzhiyun * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24*4882a593Smuzhiyun * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25*4882a593Smuzhiyun * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26*4882a593Smuzhiyun * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27*4882a593Smuzhiyun * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28*4882a593Smuzhiyun * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29*4882a593Smuzhiyun * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30*4882a593Smuzhiyun * SOFTWARE.
31*4882a593Smuzhiyun *
32*4882a593Smuzhiyun */
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun #ifndef USNIC_IB_H_
35*4882a593Smuzhiyun #define USNIC_IB_H_
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun #include <linux/iommu.h>
38*4882a593Smuzhiyun #include <linux/netdevice.h>
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun #include <rdma/ib_verbs.h>
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun #include "usnic.h"
44*4882a593Smuzhiyun #include "usnic_abi.h"
45*4882a593Smuzhiyun #include "usnic_vnic.h"
46*4882a593Smuzhiyun
47*4882a593Smuzhiyun #define USNIC_IB_PORT_CNT 1
48*4882a593Smuzhiyun #define USNIC_IB_NUM_COMP_VECTORS 1
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun extern unsigned int usnic_ib_share_vf;
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun struct usnic_ib_ucontext {
53*4882a593Smuzhiyun struct ib_ucontext ibucontext;
54*4882a593Smuzhiyun /* Protected by usnic_ib_dev->usdev_lock */
55*4882a593Smuzhiyun struct list_head qp_grp_list;
56*4882a593Smuzhiyun struct list_head link;
57*4882a593Smuzhiyun };
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun struct usnic_ib_pd {
60*4882a593Smuzhiyun struct ib_pd ibpd;
61*4882a593Smuzhiyun struct usnic_uiom_pd *umem_pd;
62*4882a593Smuzhiyun };
63*4882a593Smuzhiyun
64*4882a593Smuzhiyun struct usnic_ib_cq {
65*4882a593Smuzhiyun struct ib_cq ibcq;
66*4882a593Smuzhiyun };
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun struct usnic_ib_mr {
69*4882a593Smuzhiyun struct ib_mr ibmr;
70*4882a593Smuzhiyun struct usnic_uiom_reg *umem;
71*4882a593Smuzhiyun };
72*4882a593Smuzhiyun
73*4882a593Smuzhiyun struct usnic_ib_dev {
74*4882a593Smuzhiyun struct ib_device ib_dev;
75*4882a593Smuzhiyun struct pci_dev *pdev;
76*4882a593Smuzhiyun struct net_device *netdev;
77*4882a593Smuzhiyun struct usnic_fwd_dev *ufdev;
78*4882a593Smuzhiyun struct list_head ib_dev_link;
79*4882a593Smuzhiyun struct list_head vf_dev_list;
80*4882a593Smuzhiyun struct list_head ctx_list;
81*4882a593Smuzhiyun struct mutex usdev_lock;
82*4882a593Smuzhiyun
83*4882a593Smuzhiyun /* provisioning information */
84*4882a593Smuzhiyun struct kref vf_cnt;
85*4882a593Smuzhiyun unsigned int vf_res_cnt[USNIC_VNIC_RES_TYPE_MAX];
86*4882a593Smuzhiyun
87*4882a593Smuzhiyun /* sysfs vars for QPN reporting */
88*4882a593Smuzhiyun struct kobject *qpn_kobj;
89*4882a593Smuzhiyun };
90*4882a593Smuzhiyun
91*4882a593Smuzhiyun struct usnic_ib_vf {
92*4882a593Smuzhiyun struct usnic_ib_dev *pf;
93*4882a593Smuzhiyun spinlock_t lock;
94*4882a593Smuzhiyun struct usnic_vnic *vnic;
95*4882a593Smuzhiyun unsigned int qp_grp_ref_cnt;
96*4882a593Smuzhiyun struct usnic_ib_pd *pd;
97*4882a593Smuzhiyun struct list_head link;
98*4882a593Smuzhiyun };
99*4882a593Smuzhiyun
100*4882a593Smuzhiyun static inline
to_usdev(struct ib_device * ibdev)101*4882a593Smuzhiyun struct usnic_ib_dev *to_usdev(struct ib_device *ibdev)
102*4882a593Smuzhiyun {
103*4882a593Smuzhiyun return container_of(ibdev, struct usnic_ib_dev, ib_dev);
104*4882a593Smuzhiyun }
105*4882a593Smuzhiyun
106*4882a593Smuzhiyun static inline
to_ucontext(struct ib_ucontext * ibucontext)107*4882a593Smuzhiyun struct usnic_ib_ucontext *to_ucontext(struct ib_ucontext *ibucontext)
108*4882a593Smuzhiyun {
109*4882a593Smuzhiyun return container_of(ibucontext, struct usnic_ib_ucontext, ibucontext);
110*4882a593Smuzhiyun }
111*4882a593Smuzhiyun
112*4882a593Smuzhiyun static inline
to_upd(struct ib_pd * ibpd)113*4882a593Smuzhiyun struct usnic_ib_pd *to_upd(struct ib_pd *ibpd)
114*4882a593Smuzhiyun {
115*4882a593Smuzhiyun return container_of(ibpd, struct usnic_ib_pd, ibpd);
116*4882a593Smuzhiyun }
117*4882a593Smuzhiyun
118*4882a593Smuzhiyun static inline
to_uucontext(struct ib_ucontext * ibucontext)119*4882a593Smuzhiyun struct usnic_ib_ucontext *to_uucontext(struct ib_ucontext *ibucontext)
120*4882a593Smuzhiyun {
121*4882a593Smuzhiyun return container_of(ibucontext, struct usnic_ib_ucontext, ibucontext);
122*4882a593Smuzhiyun }
123*4882a593Smuzhiyun
124*4882a593Smuzhiyun static inline
to_umr(struct ib_mr * ibmr)125*4882a593Smuzhiyun struct usnic_ib_mr *to_umr(struct ib_mr *ibmr)
126*4882a593Smuzhiyun {
127*4882a593Smuzhiyun return container_of(ibmr, struct usnic_ib_mr, ibmr);
128*4882a593Smuzhiyun }
129*4882a593Smuzhiyun void usnic_ib_log_vf(struct usnic_ib_vf *vf);
130*4882a593Smuzhiyun
131*4882a593Smuzhiyun #define UPDATE_PTR_LEFT(N, P, L) \
132*4882a593Smuzhiyun do { \
133*4882a593Smuzhiyun L -= (N); \
134*4882a593Smuzhiyun P += (N); \
135*4882a593Smuzhiyun } while (0)
136*4882a593Smuzhiyun
137*4882a593Smuzhiyun #endif /* USNIC_IB_H_ */
138