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a612dbe8d0
Add defines for all event types and subtypes an ism device is known to produce as it can be helpful for debugging purposes. Introduces a generic 'struct dibs_event' and adopt ism device driver and smc-d client accordingly. Tolerate and ignore other type and subtype values to enable future device extensions. SMC-D and ISM are now independent. struct ism_dev can be moved to drivers/s390/net/ism.h. Note that in smc, the term 'ism' is still used. Future patches could replace that with 'dibs' or 'smc-d' as appropriate. Signed-off-by: Julian Ruess <julianr@linux.ibm.com> Co-developed-by: Alexandra Winter <wintera@linux.ibm.com> Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Link: https://patch.msgid.link/20250918110500.1731261-15-wintera@linux.ibm.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
54 lines
1.0 KiB
C
54 lines
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Shared Memory Communications over RDMA (SMC-R) and RoCE
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*
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* Definitions for the SMC module (socket related)
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*
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* Copyright IBM Corp. 2016
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*
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* Author(s): Ursula Braun <ubraun@linux.vnet.ibm.com>
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*/
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#ifndef _SMC_H
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#define _SMC_H
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#include <linux/device.h>
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#include <linux/spinlock.h>
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#include <linux/types.h>
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#include <linux/wait.h>
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#include <linux/dibs.h>
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struct sock;
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#define SMC_MAX_PNETID_LEN 16 /* Max. length of PNET id */
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struct smc_hashinfo {
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rwlock_t lock;
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struct hlist_head ht;
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};
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/* SMCD/ISM device driver interface */
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#define ISM_RESERVED_VLANID 0x1FFF
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struct smcd_gid {
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u64 gid;
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u64 gid_ext;
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};
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struct smcd_dev {
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struct dibs_dev *dibs;
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struct list_head list;
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spinlock_t lock;
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struct smc_connection **conn;
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struct list_head vlan;
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struct workqueue_struct *event_wq;
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u8 pnetid[SMC_MAX_PNETID_LEN];
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bool pnetid_by_user;
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struct list_head lgr_list;
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spinlock_t lgr_lock;
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atomic_t lgr_cnt;
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wait_queue_head_t lgrs_deleted;
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u8 going_away : 1;
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};
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#endif /* _SMC_H */
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