Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
6812baab TR |
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 | ||
e888a2e8 UB |
15 | #include <net/smc.h> |
16 | ||
0afff91c UB |
17 | #if IS_ENABLED(CONFIG_HAVE_PNETID) |
18 | #include <asm/pnet.h> | |
19 | #endif | |
20 | ||
6812baab | 21 | struct smc_ib_device; |
1619f770 | 22 | struct smcd_dev; |
bc36d2fc | 23 | struct smc_init_info; |
6c868a3e | 24 | struct smc_link_group; |
6812baab | 25 | |
64e28b52 HW |
26 | /** |
27 | * struct smc_pnettable - SMC PNET table anchor | |
28 | * @lock: Lock for list action | |
29 | * @pnetlist: List of PNETIDs | |
30 | */ | |
31 | struct smc_pnettable { | |
7ff57e98 | 32 | struct mutex lock; |
64e28b52 HW |
33 | struct list_head pnetlist; |
34 | }; | |
35 | ||
e888a2e8 UB |
36 | struct smc_pnetids_ndev { /* list of pnetids for net devices in UP state*/ |
37 | struct list_head list; | |
38 | rwlock_t lock; | |
39 | }; | |
40 | ||
41 | struct smc_pnetids_ndev_entry { | |
42 | struct list_head list; | |
43 | u8 pnetid[SMC_MAX_PNETID_LEN]; | |
44 | refcount_t refcnt; | |
45 | }; | |
46 | ||
0afff91c UB |
47 | static inline int smc_pnetid_by_dev_port(struct device *dev, |
48 | unsigned short port, u8 *pnetid) | |
49 | { | |
50 | #if IS_ENABLED(CONFIG_HAVE_PNETID) | |
51 | return pnet_id_by_dev_port(dev, port, pnetid); | |
52 | #else | |
53 | return -ENOENT; | |
54 | #endif | |
55 | } | |
56 | ||
6812baab | 57 | int smc_pnet_init(void) __init; |
64e28b52 | 58 | int smc_pnet_net_init(struct net *net); |
6812baab | 59 | void smc_pnet_exit(void); |
64e28b52 | 60 | void smc_pnet_net_exit(struct net *net); |
bc36d2fc KG |
61 | void smc_pnet_find_roce_resource(struct sock *sk, struct smc_init_info *ini); |
62 | void smc_pnet_find_ism_resource(struct sock *sk, struct smc_init_info *ini); | |
fdff704d KG |
63 | int smc_pnetid_by_table_ib(struct smc_ib_device *smcibdev, u8 ib_port); |
64 | int smc_pnetid_by_table_smcd(struct smcd_dev *smcd); | |
6c868a3e KG |
65 | void smc_pnet_find_alt_roce(struct smc_link_group *lgr, |
66 | struct smc_init_info *ini, | |
67 | struct smc_ib_device *known_dev); | |
e888a2e8 | 68 | bool smc_pnet_is_ndev_pnetid(struct net *net, u8 *pnetid); |
d70bf4f7 | 69 | bool smc_pnet_is_pnetid_set(u8 *pnetid); |
6812baab | 70 | #endif |