Merge tag 'drm-intel-next-2019-05-24' of git://anongit.freedesktop.org/drm/drm-intel...
[linux-2.6-block.git] / net / smc / smc_pnet.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Shared Memory Communications over RDMA (SMC-R) and RoCE
4  *
5  *  PNET table queries
6  *
7  *  Copyright IBM Corp. 2016
8  *
9  *  Author(s):  Thomas Richter <tmricht@linux.vnet.ibm.com>
10  */
11
12 #ifndef _SMC_PNET_H
13 #define _SMC_PNET_H
14
15 #if IS_ENABLED(CONFIG_HAVE_PNETID)
16 #include <asm/pnet.h>
17 #endif
18
19 struct smc_ib_device;
20 struct smcd_dev;
21 struct smc_init_info;
22
23 /**
24  * struct smc_pnettable - SMC PNET table anchor
25  * @lock: Lock for list action
26  * @pnetlist: List of PNETIDs
27  */
28 struct smc_pnettable {
29         rwlock_t lock;
30         struct list_head pnetlist;
31 };
32
33 static inline int smc_pnetid_by_dev_port(struct device *dev,
34                                          unsigned short port, u8 *pnetid)
35 {
36 #if IS_ENABLED(CONFIG_HAVE_PNETID)
37         return pnet_id_by_dev_port(dev, port, pnetid);
38 #else
39         return -ENOENT;
40 #endif
41 }
42
43 int smc_pnet_init(void) __init;
44 int smc_pnet_net_init(struct net *net);
45 void smc_pnet_exit(void);
46 void smc_pnet_net_exit(struct net *net);
47 void smc_pnet_find_roce_resource(struct sock *sk, struct smc_init_info *ini);
48 void smc_pnet_find_ism_resource(struct sock *sk, struct smc_init_info *ini);
49
50 #endif