mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 10:49:33 +00:00
![Kaike Wan](/assets/img/avatar_default.png)
This patch adds a counter for credit waits to assist field debugging. Link: https://lore.kernel.org/r/20190911113047.126040.10857.stgit@awfm-01.aw.intel.com Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Kaike Wan <kaike.wan@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
574 lines
16 KiB
C
574 lines
16 KiB
C
#ifndef DEF_RDMA_VT_H
|
|
#define DEF_RDMA_VT_H
|
|
|
|
/*
|
|
* Copyright(c) 2016 - 2019 Intel Corporation.
|
|
*
|
|
* This file is provided under a dual BSD/GPLv2 license. When using or
|
|
* redistributing this file, you may do so under either license.
|
|
*
|
|
* GPL LICENSE SUMMARY
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of version 2 of the GNU General Public License as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* BSD LICENSE
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* - Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* - Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* - Neither the name of Intel Corporation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* Structure that low level drivers will populate in order to register with the
|
|
* rdmavt layer.
|
|
*/
|
|
|
|
#include <linux/spinlock.h>
|
|
#include <linux/list.h>
|
|
#include <linux/hash.h>
|
|
#include <rdma/ib_verbs.h>
|
|
#include <rdma/ib_mad.h>
|
|
#include <rdma/rdmavt_mr.h>
|
|
|
|
#define RVT_MAX_PKEY_VALUES 16
|
|
|
|
#define RVT_MAX_TRAP_LEN 100 /* Limit pending trap list */
|
|
#define RVT_MAX_TRAP_LISTS 5 /*((IB_NOTICE_TYPE_INFO & 0x0F) + 1)*/
|
|
#define RVT_TRAP_TIMEOUT 4096 /* 4.096 usec */
|
|
|
|
struct trap_list {
|
|
u32 list_len;
|
|
struct list_head list;
|
|
};
|
|
|
|
struct rvt_qp;
|
|
struct rvt_qpn_table;
|
|
struct rvt_ibport {
|
|
struct rvt_qp __rcu *qp[2];
|
|
struct ib_mad_agent *send_agent; /* agent for SMI (traps) */
|
|
struct rb_root mcast_tree;
|
|
spinlock_t lock; /* protect changes in this struct */
|
|
|
|
/* non-zero when timer is set */
|
|
unsigned long mkey_lease_timeout;
|
|
unsigned long trap_timeout;
|
|
__be64 gid_prefix; /* in network order */
|
|
__be64 mkey;
|
|
u64 tid;
|
|
u32 port_cap_flags;
|
|
u16 port_cap3_flags;
|
|
u32 pma_sample_start;
|
|
u32 pma_sample_interval;
|
|
__be16 pma_counter_select[5];
|
|
u16 pma_tag;
|
|
u16 mkey_lease_period;
|
|
u32 sm_lid;
|
|
u8 sm_sl;
|
|
u8 mkeyprot;
|
|
u8 subnet_timeout;
|
|
u8 vl_high_limit;
|
|
|
|
/*
|
|
* Driver is expected to keep these up to date. These
|
|
* counters are informational only and not required to be
|
|
* completely accurate.
|
|
*/
|
|
u64 n_rc_resends;
|
|
u64 n_seq_naks;
|
|
u64 n_rdma_seq;
|
|
u64 n_rnr_naks;
|
|
u64 n_other_naks;
|
|
u64 n_loop_pkts;
|
|
u64 n_pkt_drops;
|
|
u64 n_vl15_dropped;
|
|
u64 n_rc_timeouts;
|
|
u64 n_dmawait;
|
|
u64 n_unaligned;
|
|
u64 n_rc_dupreq;
|
|
u64 n_rc_seqnak;
|
|
u64 n_rc_crwaits;
|
|
u16 pkey_violations;
|
|
u16 qkey_violations;
|
|
u16 mkey_violations;
|
|
|
|
/* Hot-path per CPU counters to avoid cacheline trading to update */
|
|
u64 z_rc_acks;
|
|
u64 z_rc_qacks;
|
|
u64 z_rc_delayed_comp;
|
|
u64 __percpu *rc_acks;
|
|
u64 __percpu *rc_qacks;
|
|
u64 __percpu *rc_delayed_comp;
|
|
|
|
void *priv; /* driver private data */
|
|
|
|
/*
|
|
* The pkey table is allocated and maintained by the driver. Drivers
|
|
* need to have access to this before registering with rdmav. However
|
|
* rdmavt will need access to it so drivers need to proviee this during
|
|
* the attach port API call.
|
|
*/
|
|
u16 *pkey_table;
|
|
|
|
struct rvt_ah *sm_ah;
|
|
|
|
/*
|
|
* Keep a list of traps that have not been repressed. They will be
|
|
* resent based on trap_timer.
|
|
*/
|
|
struct trap_list trap_lists[RVT_MAX_TRAP_LISTS];
|
|
struct timer_list trap_timer;
|
|
};
|
|
|
|
#define RVT_CQN_MAX 16 /* maximum length of cq name */
|
|
|
|
#define RVT_SGE_COPY_MEMCPY 0
|
|
#define RVT_SGE_COPY_CACHELESS 1
|
|
#define RVT_SGE_COPY_ADAPTIVE 2
|
|
|
|
/*
|
|
* Things that are driver specific, module parameters in hfi1 and qib
|
|
*/
|
|
struct rvt_driver_params {
|
|
struct ib_device_attr props;
|
|
|
|
/*
|
|
* Anything driver specific that is not covered by props
|
|
* For instance special module parameters. Goes here.
|
|
*/
|
|
unsigned int lkey_table_size;
|
|
unsigned int qp_table_size;
|
|
unsigned int sge_copy_mode;
|
|
unsigned int wss_threshold;
|
|
unsigned int wss_clean_period;
|
|
int qpn_start;
|
|
int qpn_inc;
|
|
int qpn_res_start;
|
|
int qpn_res_end;
|
|
int nports;
|
|
int npkeys;
|
|
int node;
|
|
int psn_mask;
|
|
int psn_shift;
|
|
int psn_modify_mask;
|
|
u32 core_cap_flags;
|
|
u32 max_mad_size;
|
|
u8 qos_shift;
|
|
u8 max_rdma_atomic;
|
|
u8 extra_rdma_atomic;
|
|
u8 reserved_operations;
|
|
};
|
|
|
|
/* User context */
|
|
struct rvt_ucontext {
|
|
struct ib_ucontext ibucontext;
|
|
};
|
|
|
|
/* Protection domain */
|
|
struct rvt_pd {
|
|
struct ib_pd ibpd;
|
|
bool user;
|
|
};
|
|
|
|
/* Address handle */
|
|
struct rvt_ah {
|
|
struct ib_ah ibah;
|
|
struct rdma_ah_attr attr;
|
|
u8 vl;
|
|
u8 log_pmtu;
|
|
};
|
|
|
|
/*
|
|
* This structure is used by rvt_mmap() to validate an offset
|
|
* when an mmap() request is made. The vm_area_struct then uses
|
|
* this as its vm_private_data.
|
|
*/
|
|
struct rvt_mmap_info {
|
|
struct list_head pending_mmaps;
|
|
struct ib_ucontext *context;
|
|
void *obj;
|
|
__u64 offset;
|
|
struct kref ref;
|
|
u32 size;
|
|
};
|
|
|
|
/* memory working set size */
|
|
struct rvt_wss {
|
|
unsigned long *entries;
|
|
atomic_t total_count;
|
|
atomic_t clean_counter;
|
|
atomic_t clean_entry;
|
|
|
|
int threshold;
|
|
int num_entries;
|
|
long pages_mask;
|
|
unsigned int clean_period;
|
|
};
|
|
|
|
struct rvt_dev_info;
|
|
struct rvt_swqe;
|
|
struct rvt_driver_provided {
|
|
/*
|
|
* Which functions are required depends on which verbs rdmavt is
|
|
* providing and which verbs the driver is overriding. See
|
|
* check_support() for details.
|
|
*/
|
|
|
|
/* hot path calldowns in a single cacheline */
|
|
|
|
/*
|
|
* Give the driver a notice that there is send work to do. It is up to
|
|
* the driver to generally push the packets out, this just queues the
|
|
* work with the driver. There are two variants here. The no_lock
|
|
* version requires the s_lock not to be held. The other assumes the
|
|
* s_lock is held.
|
|
*/
|
|
bool (*schedule_send)(struct rvt_qp *qp);
|
|
bool (*schedule_send_no_lock)(struct rvt_qp *qp);
|
|
|
|
/*
|
|
* Driver specific work request setup and checking.
|
|
* This function is allowed to perform any setup, checks, or
|
|
* adjustments required to the SWQE in order to be usable by
|
|
* underlying protocols. This includes private data structure
|
|
* allocations.
|
|
*/
|
|
int (*setup_wqe)(struct rvt_qp *qp, struct rvt_swqe *wqe,
|
|
bool *call_send);
|
|
|
|
/*
|
|
* Sometimes rdmavt needs to kick the driver's send progress. That is
|
|
* done by this call back.
|
|
*/
|
|
void (*do_send)(struct rvt_qp *qp);
|
|
|
|
/*
|
|
* Returns a pointer to the undelying hardware's PCI device. This is
|
|
* used to display information as to what hardware is being referenced
|
|
* in an output message
|
|
*/
|
|
struct pci_dev * (*get_pci_dev)(struct rvt_dev_info *rdi);
|
|
|
|
/*
|
|
* Allocate a private queue pair data structure for driver specific
|
|
* information which is opaque to rdmavt. Errors are returned via
|
|
* ERR_PTR(err). The driver is free to return NULL or a valid
|
|
* pointer.
|
|
*/
|
|
void * (*qp_priv_alloc)(struct rvt_dev_info *rdi, struct rvt_qp *qp);
|
|
|
|
/*
|
|
* Init a struture allocated with qp_priv_alloc(). This should be
|
|
* called after all qp fields have been initialized in rdmavt.
|
|
*/
|
|
int (*qp_priv_init)(struct rvt_dev_info *rdi, struct rvt_qp *qp,
|
|
struct ib_qp_init_attr *init_attr);
|
|
|
|
/*
|
|
* Free the driver's private qp structure.
|
|
*/
|
|
void (*qp_priv_free)(struct rvt_dev_info *rdi, struct rvt_qp *qp);
|
|
|
|
/*
|
|
* Inform the driver the particular qp in quesiton has been reset so
|
|
* that it can clean up anything it needs to.
|
|
*/
|
|
void (*notify_qp_reset)(struct rvt_qp *qp);
|
|
|
|
/*
|
|
* Get a path mtu from the driver based on qp attributes.
|
|
*/
|
|
int (*get_pmtu_from_attr)(struct rvt_dev_info *rdi, struct rvt_qp *qp,
|
|
struct ib_qp_attr *attr);
|
|
|
|
/*
|
|
* Notify driver that it needs to flush any outstanding IO requests that
|
|
* are waiting on a qp.
|
|
*/
|
|
void (*flush_qp_waiters)(struct rvt_qp *qp);
|
|
|
|
/*
|
|
* Notify driver to stop its queue of sending packets. Nothing else
|
|
* should be posted to the queue pair after this has been called.
|
|
*/
|
|
void (*stop_send_queue)(struct rvt_qp *qp);
|
|
|
|
/*
|
|
* Have the drivr drain any in progress operations
|
|
*/
|
|
void (*quiesce_qp)(struct rvt_qp *qp);
|
|
|
|
/*
|
|
* Inform the driver a qp has went to error state.
|
|
*/
|
|
void (*notify_error_qp)(struct rvt_qp *qp);
|
|
|
|
/*
|
|
* Get an MTU for a qp.
|
|
*/
|
|
u32 (*mtu_from_qp)(struct rvt_dev_info *rdi, struct rvt_qp *qp,
|
|
u32 pmtu);
|
|
/*
|
|
* Convert an mtu to a path mtu
|
|
*/
|
|
int (*mtu_to_path_mtu)(u32 mtu);
|
|
|
|
/*
|
|
* Get the guid of a port in big endian byte order
|
|
*/
|
|
int (*get_guid_be)(struct rvt_dev_info *rdi, struct rvt_ibport *rvp,
|
|
int guid_index, __be64 *guid);
|
|
|
|
/*
|
|
* Query driver for the state of the port.
|
|
*/
|
|
int (*query_port_state)(struct rvt_dev_info *rdi, u8 port_num,
|
|
struct ib_port_attr *props);
|
|
|
|
/*
|
|
* Tell driver to shutdown a port
|
|
*/
|
|
int (*shut_down_port)(struct rvt_dev_info *rdi, u8 port_num);
|
|
|
|
/* Tell driver to send a trap for changed port capabilities */
|
|
void (*cap_mask_chg)(struct rvt_dev_info *rdi, u8 port_num);
|
|
|
|
/*
|
|
* The following functions can be safely ignored completely. Any use of
|
|
* these is checked for NULL before blindly calling. Rdmavt should also
|
|
* be functional if drivers omit these.
|
|
*/
|
|
|
|
/* Called to inform the driver that all qps should now be freed. */
|
|
unsigned (*free_all_qps)(struct rvt_dev_info *rdi);
|
|
|
|
/* Driver specific AH validation */
|
|
int (*check_ah)(struct ib_device *, struct rdma_ah_attr *);
|
|
|
|
/* Inform the driver a new AH has been created */
|
|
void (*notify_new_ah)(struct ib_device *, struct rdma_ah_attr *,
|
|
struct rvt_ah *);
|
|
|
|
/* Let the driver pick the next queue pair number*/
|
|
int (*alloc_qpn)(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt,
|
|
enum ib_qp_type type, u8 port_num);
|
|
|
|
/* Determine if its safe or allowed to modify the qp */
|
|
int (*check_modify_qp)(struct rvt_qp *qp, struct ib_qp_attr *attr,
|
|
int attr_mask, struct ib_udata *udata);
|
|
|
|
/* Driver specific QP modification/notification-of */
|
|
void (*modify_qp)(struct rvt_qp *qp, struct ib_qp_attr *attr,
|
|
int attr_mask, struct ib_udata *udata);
|
|
|
|
/* Notify driver a mad agent has been created */
|
|
void (*notify_create_mad_agent)(struct rvt_dev_info *rdi, int port_idx);
|
|
|
|
/* Notify driver a mad agent has been removed */
|
|
void (*notify_free_mad_agent)(struct rvt_dev_info *rdi, int port_idx);
|
|
|
|
/* Notify driver to restart rc */
|
|
void (*notify_restart_rc)(struct rvt_qp *qp, u32 psn, int wait);
|
|
|
|
/* Get and return CPU to pin CQ processing thread */
|
|
int (*comp_vect_cpu_lookup)(struct rvt_dev_info *rdi, int comp_vect);
|
|
};
|
|
|
|
struct rvt_dev_info {
|
|
struct ib_device ibdev; /* Keep this first. Nothing above here */
|
|
|
|
/*
|
|
* Prior to calling for registration the driver will be responsible for
|
|
* allocating space for this structure.
|
|
*
|
|
* The driver will also be responsible for filling in certain members of
|
|
* dparms.props. The driver needs to fill in dparms exactly as it would
|
|
* want values reported to a ULP. This will be returned to the caller
|
|
* in rdmavt's device. The driver should also therefore refrain from
|
|
* modifying this directly after registration with rdmavt.
|
|
*/
|
|
|
|
/* Driver specific properties */
|
|
struct rvt_driver_params dparms;
|
|
|
|
/* post send table */
|
|
const struct rvt_operation_params *post_parms;
|
|
|
|
/* opcode translation table */
|
|
const enum ib_wc_opcode *wc_opcode;
|
|
|
|
/* Driver specific helper functions */
|
|
struct rvt_driver_provided driver_f;
|
|
|
|
struct rvt_mregion __rcu *dma_mr;
|
|
struct rvt_lkey_table lkey_table;
|
|
|
|
/* Internal use */
|
|
int n_pds_allocated;
|
|
spinlock_t n_pds_lock; /* Protect pd allocated count */
|
|
|
|
int n_ahs_allocated;
|
|
spinlock_t n_ahs_lock; /* Protect ah allocated count */
|
|
|
|
u32 n_srqs_allocated;
|
|
spinlock_t n_srqs_lock; /* Protect srqs allocated count */
|
|
|
|
int flags;
|
|
struct rvt_ibport **ports;
|
|
|
|
/* QP */
|
|
struct rvt_qp_ibdev *qp_dev;
|
|
u32 n_qps_allocated; /* number of QPs allocated for device */
|
|
u32 n_rc_qps; /* number of RC QPs allocated for device */
|
|
u32 busy_jiffies; /* timeout scaling based on RC QP count */
|
|
spinlock_t n_qps_lock; /* protect qps, rc qps and busy jiffy counts */
|
|
|
|
/* memory maps */
|
|
struct list_head pending_mmaps;
|
|
spinlock_t mmap_offset_lock; /* protect mmap_offset */
|
|
u32 mmap_offset;
|
|
spinlock_t pending_lock; /* protect pending mmap list */
|
|
|
|
/* CQ */
|
|
u32 n_cqs_allocated; /* number of CQs allocated for device */
|
|
spinlock_t n_cqs_lock; /* protect count of in use cqs */
|
|
|
|
/* Multicast */
|
|
u32 n_mcast_grps_allocated; /* number of mcast groups allocated */
|
|
spinlock_t n_mcast_grps_lock;
|
|
|
|
/* Memory Working Set Size */
|
|
struct rvt_wss *wss;
|
|
};
|
|
|
|
/**
|
|
* rvt_set_ibdev_name - Craft an IB device name from client info
|
|
* @rdi: pointer to the client rvt_dev_info structure
|
|
* @name: client specific name
|
|
* @unit: client specific unit number.
|
|
*/
|
|
static inline void rvt_set_ibdev_name(struct rvt_dev_info *rdi,
|
|
const char *fmt, const char *name,
|
|
const int unit)
|
|
{
|
|
/*
|
|
* FIXME: rvt and its users want to touch the ibdev before
|
|
* registration and have things like the name work. We don't have the
|
|
* infrastructure in the core to support this directly today, hack it
|
|
* to work by setting the name manually here.
|
|
*/
|
|
dev_set_name(&rdi->ibdev.dev, fmt, name, unit);
|
|
strlcpy(rdi->ibdev.name, dev_name(&rdi->ibdev.dev), IB_DEVICE_NAME_MAX);
|
|
}
|
|
|
|
/**
|
|
* rvt_get_ibdev_name - return the IB name
|
|
* @rdi: rdmavt device
|
|
*
|
|
* Return the registered name of the device.
|
|
*/
|
|
static inline const char *rvt_get_ibdev_name(const struct rvt_dev_info *rdi)
|
|
{
|
|
return dev_name(&rdi->ibdev.dev);
|
|
}
|
|
|
|
static inline struct rvt_pd *ibpd_to_rvtpd(struct ib_pd *ibpd)
|
|
{
|
|
return container_of(ibpd, struct rvt_pd, ibpd);
|
|
}
|
|
|
|
static inline struct rvt_ah *ibah_to_rvtah(struct ib_ah *ibah)
|
|
{
|
|
return container_of(ibah, struct rvt_ah, ibah);
|
|
}
|
|
|
|
static inline struct rvt_dev_info *ib_to_rvt(struct ib_device *ibdev)
|
|
{
|
|
return container_of(ibdev, struct rvt_dev_info, ibdev);
|
|
}
|
|
|
|
static inline unsigned rvt_get_npkeys(struct rvt_dev_info *rdi)
|
|
{
|
|
/*
|
|
* All ports have same number of pkeys.
|
|
*/
|
|
return rdi->dparms.npkeys;
|
|
}
|
|
|
|
/*
|
|
* Return the max atomic suitable for determining
|
|
* the size of the ack ring buffer in a QP.
|
|
*/
|
|
static inline unsigned int rvt_max_atomic(struct rvt_dev_info *rdi)
|
|
{
|
|
return rdi->dparms.max_rdma_atomic +
|
|
rdi->dparms.extra_rdma_atomic + 1;
|
|
}
|
|
|
|
static inline unsigned int rvt_size_atomic(struct rvt_dev_info *rdi)
|
|
{
|
|
return rdi->dparms.max_rdma_atomic +
|
|
rdi->dparms.extra_rdma_atomic;
|
|
}
|
|
|
|
/*
|
|
* Return the indexed PKEY from the port PKEY table.
|
|
*/
|
|
static inline u16 rvt_get_pkey(struct rvt_dev_info *rdi,
|
|
int port_index,
|
|
unsigned index)
|
|
{
|
|
if (index >= rvt_get_npkeys(rdi))
|
|
return 0;
|
|
else
|
|
return rdi->ports[port_index]->pkey_table[index];
|
|
}
|
|
|
|
struct rvt_dev_info *rvt_alloc_device(size_t size, int nports);
|
|
void rvt_dealloc_device(struct rvt_dev_info *rdi);
|
|
int rvt_register_device(struct rvt_dev_info *rvd);
|
|
void rvt_unregister_device(struct rvt_dev_info *rvd);
|
|
int rvt_check_ah(struct ib_device *ibdev, struct rdma_ah_attr *ah_attr);
|
|
int rvt_init_port(struct rvt_dev_info *rdi, struct rvt_ibport *port,
|
|
int port_index, u16 *pkey_table);
|
|
int rvt_fast_reg_mr(struct rvt_qp *qp, struct ib_mr *ibmr, u32 key,
|
|
int access);
|
|
int rvt_invalidate_rkey(struct rvt_qp *qp, u32 rkey);
|
|
int rvt_rkey_ok(struct rvt_qp *qp, struct rvt_sge *sge,
|
|
u32 len, u64 vaddr, u32 rkey, int acc);
|
|
int rvt_lkey_ok(struct rvt_lkey_table *rkt, struct rvt_pd *pd,
|
|
struct rvt_sge *isge, struct rvt_sge *last_sge,
|
|
struct ib_sge *sge, int acc);
|
|
struct rvt_mcast *rvt_mcast_find(struct rvt_ibport *ibp, union ib_gid *mgid,
|
|
u16 lid);
|
|
|
|
#endif /* DEF_RDMA_VT_H */
|