cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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smc_pnet.h (1742B)

      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#include <net/smc.h>
     16
     17#if IS_ENABLED(CONFIG_HAVE_PNETID)
     18#include <asm/pnet.h>
     19#endif
     20
     21struct smc_ib_device;
     22struct smcd_dev;
     23struct smc_init_info;
     24struct smc_link_group;
     25
     26/**
     27 * struct smc_pnettable - SMC PNET table anchor
     28 * @lock: Lock for list action
     29 * @pnetlist: List of PNETIDs
     30 */
     31struct smc_pnettable {
     32	struct mutex lock;
     33	struct list_head pnetlist;
     34};
     35
     36struct smc_pnetids_ndev {	/* list of pnetids for net devices in UP state*/
     37	struct list_head	list;
     38	rwlock_t		lock;
     39};
     40
     41struct smc_pnetids_ndev_entry {
     42	struct list_head	list;
     43	u8			pnetid[SMC_MAX_PNETID_LEN];
     44	refcount_t		refcnt;
     45};
     46
     47static 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
     57int smc_pnet_init(void) __init;
     58int smc_pnet_net_init(struct net *net);
     59void smc_pnet_exit(void);
     60void smc_pnet_net_exit(struct net *net);
     61void smc_pnet_find_roce_resource(struct sock *sk, struct smc_init_info *ini);
     62void smc_pnet_find_ism_resource(struct sock *sk, struct smc_init_info *ini);
     63int smc_pnetid_by_table_ib(struct smc_ib_device *smcibdev, u8 ib_port);
     64int smc_pnetid_by_table_smcd(struct smcd_dev *smcd);
     65void smc_pnet_find_alt_roce(struct smc_link_group *lgr,
     66			    struct smc_init_info *ini,
     67			    struct smc_ib_device *known_dev);
     68bool smc_pnet_is_ndev_pnetid(struct net *net, u8 *pnetid);
     69bool smc_pnet_is_pnetid_set(u8 *pnetid);
     70#endif