linux/net/smc/smc_pnet.h
Hans Wippel 1619f77058 net/smc: add pnetid support for SMC-D and ISM
SMC-D relies on PNETIDs to find usable SMC-D/ISM devices for a SMC
connection. This patch adds SMC-D/ISM support to the current PNETID
implementation.

Signed-off-by: Hans Wippel <hwippel@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Suggested-by: Thomas Richter <tmricht@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-30 20:42:25 +09:00

40 lines
896 B
C

/* 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 <tmricht@linux.vnet.ibm.com>
*/
#ifndef _SMC_PNET_H
#define _SMC_PNET_H
#if IS_ENABLED(CONFIG_HAVE_PNETID)
#include <asm/pnet.h>
#endif
struct smc_ib_device;
struct smcd_dev;
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;
void smc_pnet_exit(void);
int smc_pnet_remove_by_ibdev(struct smc_ib_device *ibdev);
void smc_pnet_find_roce_resource(struct sock *sk,
struct smc_ib_device **smcibdev, u8 *ibport);
void smc_pnet_find_ism_resource(struct sock *sk, struct smcd_dev **smcismdev);
#endif