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
  22 static inline int smc_pnetid_by_dev_port(struct device *dev,
  23                                          unsigned short port, u8 *pnetid)
  24 {
  25 #if IS_ENABLED(CONFIG_HAVE_PNETID)
  26         return pnet_id_by_dev_port(dev, port, pnetid);
  27 #else
  28         return -ENOENT;
  29 #endif
  30 }
  31
  32 int smc_pnet_init(void) __init;
  33 void smc_pnet_exit(void);
  34 int smc_pnet_remove_by_ibdev(struct smc_ib_device *ibdev);
  35 void smc_pnet_find_roce_resource(struct sock *sk,
  36                                  struct smc_ib_device **smcibdev, u8 *ibport,
  37                                  unsigned short vlan_id, u8 gid[]);
  38 void smc_pnet_find_ism_resource(struct sock *sk, struct smcd_dev **smcismdev);
  39
  40 #endif