projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 |