mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 17:30:02 +00:00
11a26c59fc
The system EID is retrieved using an registered ISM device each time when needed. This adds some unnecessary complexity at all places where the system EID is needed, but no ISM device is at hand. Simplify the code and save the system EID in a static variable in smc_ism.c. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Reviewed-by: Guvenc Gulce <guvenc@linux.ibm.com> Signed-off-by: Guvenc Gulce <guvenc@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/* Shared Memory Communications Direct over ISM devices (SMC-D)
|
|
*
|
|
* SMC-D ISM device structure definitions.
|
|
*
|
|
* Copyright IBM Corp. 2018
|
|
*/
|
|
|
|
#ifndef SMCD_ISM_H
|
|
#define SMCD_ISM_H
|
|
|
|
#include <linux/uio.h>
|
|
#include <linux/types.h>
|
|
#include <linux/mutex.h>
|
|
|
|
#include "smc.h"
|
|
|
|
struct smcd_dev_list { /* List of SMCD devices */
|
|
struct list_head list;
|
|
struct mutex mutex; /* Protects list of devices */
|
|
};
|
|
|
|
extern struct smcd_dev_list smcd_dev_list; /* list of smcd devices */
|
|
|
|
struct smc_ism_vlanid { /* VLAN id set on ISM device */
|
|
struct list_head list;
|
|
unsigned short vlanid; /* Vlan id */
|
|
refcount_t refcnt; /* Reference count */
|
|
};
|
|
|
|
struct smc_ism_position { /* ISM device position to write to */
|
|
u64 token; /* Token of DMB */
|
|
u32 offset; /* Offset into DMBE */
|
|
u8 index; /* Index of DMBE */
|
|
u8 signal; /* Generate interrupt on owner side */
|
|
};
|
|
|
|
struct smcd_dev;
|
|
|
|
int smc_ism_cantalk(u64 peer_gid, unsigned short vlan_id, struct smcd_dev *dev);
|
|
void smc_ism_set_conn(struct smc_connection *conn);
|
|
void smc_ism_unset_conn(struct smc_connection *conn);
|
|
int smc_ism_get_vlan(struct smcd_dev *dev, unsigned short vlan_id);
|
|
int smc_ism_put_vlan(struct smcd_dev *dev, unsigned short vlan_id);
|
|
int smc_ism_register_dmb(struct smc_link_group *lgr, int buf_size,
|
|
struct smc_buf_desc *dmb_desc);
|
|
int smc_ism_unregister_dmb(struct smcd_dev *dev, struct smc_buf_desc *dmb_desc);
|
|
int smc_ism_write(struct smcd_dev *dev, const struct smc_ism_position *pos,
|
|
void *data, size_t len);
|
|
int smc_ism_signal_shutdown(struct smc_link_group *lgr);
|
|
void smc_ism_get_system_eid(u8 **eid);
|
|
u16 smc_ism_get_chid(struct smcd_dev *dev);
|
|
bool smc_ism_is_v2_capable(void);
|
|
void smc_ism_init(void);
|
|
int smcd_nl_get_device(struct sk_buff *skb, struct netlink_callback *cb);
|
|
#endif
|