From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- net/smc/smc_pnet.h | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 net/smc/smc_pnet.h (limited to 'net/smc/smc_pnet.h') diff --git a/net/smc/smc_pnet.h b/net/smc/smc_pnet.h new file mode 100644 index 0000000000..80a88eea49 --- /dev/null +++ b/net/smc/smc_pnet.h @@ -0,0 +1,70 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Shared Memory Communications over RDMA (SMC-R) and RoCE + * + * PNET table queries + * + * Copyright IBM Corp. 2016 + * + * Author(s): Thomas Richter + */ + +#ifndef _SMC_PNET_H +#define _SMC_PNET_H + +#include + +#if IS_ENABLED(CONFIG_HAVE_PNETID) +#include +#endif + +struct smc_ib_device; +struct smcd_dev; +struct smc_init_info; +struct smc_link_group; + +/** + * struct smc_pnettable - SMC PNET table anchor + * @lock: Lock for list action + * @pnetlist: List of PNETIDs + */ +struct smc_pnettable { + struct mutex lock; + struct list_head pnetlist; +}; + +struct smc_pnetids_ndev { /* list of pnetids for net devices in UP state*/ + struct list_head list; + rwlock_t lock; +}; + +struct smc_pnetids_ndev_entry { + struct list_head list; + u8 pnetid[SMC_MAX_PNETID_LEN]; + refcount_t refcnt; +}; + +static inline int smc_pnetid_by_dev_port(struct device *dev, + unsigned short port, u8 *pnetid) +{ +#if IS_ENABLED(CONFIG_HAVE_PNETID) + return pnet_id_by_dev_port(dev, port, pnetid); +#else + return -ENOENT; +#endif +} + +int smc_pnet_init(void) __init; +int smc_pnet_net_init(struct net *net); +void smc_pnet_exit(void); +void smc_pnet_net_exit(struct net *net); +void smc_pnet_find_roce_resource(struct sock *sk, struct smc_init_info *ini); +void smc_pnet_find_ism_resource(struct sock *sk, struct smc_init_info *ini); +int smc_pnetid_by_table_ib(struct smc_ib_device *smcibdev, u8 ib_port); +int smc_pnetid_by_table_smcd(struct smcd_dev *smcd); +void smc_pnet_find_alt_roce(struct smc_link_group *lgr, + struct smc_init_info *ini, + struct smc_ib_device *known_dev); +bool smc_pnet_is_ndev_pnetid(struct net *net, u8 *pnetid); +bool smc_pnet_is_pnetid_set(u8 *pnetid); +#endif -- cgit v1.2.3