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IB/rdmavt: Adding timer logic to rdmavt

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To move common code across target to rdmavt for code reuse.

Reviewed-by: Mike Marciniszyn <[email protected]>
Reviewed-by: Brian Welty <[email protected]>
Signed-off-by: Venkata Sandeep Dhanalakota <[email protected]>
Signed-off-by: Dennis Dalessandro <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>
This commit is contained in:
Venkata Sandeep Dhanalakota 2017-02-08 05:27:13 -08:00 • committed by Doug Ledford
commit 11a10d4bc7
3 changed files with 206 additions and 2 deletions
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19
include/rdma/rdma_vt.h
View file

@ -335,6 +335,8 @@ struct rvt_driver_provided {
/* 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);
};
struct rvt_dev_info {
@ -483,6 +485,23 @@ static inline struct rvt_qp *rvt_lookup_qpn(struct rvt_dev_info *rdi,
return qp;
}
/**
* rvt_mod_retry_timer - mod a retry timer
* @qp - the QP
* Modify a potentially already running retry timer
*/
static inline void rvt_mod_retry_timer(struct rvt_qp *qp)
{
struct ib_qp *ibqp = &qp->ibqp;
struct rvt_dev_info *rdi = ib_to_rvt(ibqp->device);
lockdep_assert_held(&qp->s_lock);
qp->s_flags |= RVT_S_TIMER;
/* 4.096 usec. * (1 << qp->timeout) */
mod_timer(&qp->s_timer, jiffies + qp->timeout_jiffies +
rdi->busy_jiffies);
}
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);

6
include/rdma/rdmavt_qp.h
View file

@ -370,6 +370,7 @@ struct rvt_qp {
struct rvt_sge_state s_ack_rdma_sge;
struct timer_list s_timer;
struct hrtimer s_rnr_timer;
atomic_t local_ops_pending; /* number of fast_reg/local_inv reqs */
@ -641,5 +642,10 @@ struct rvt_dev_info;
void rvt_comm_est(struct rvt_qp *qp);
int rvt_error_qp(struct rvt_qp *qp, enum ib_wc_status err);
void rvt_rc_error(struct rvt_qp *qp, enum ib_wc_status err);
enum hrtimer_restart rvt_rc_rnr_retry(struct hrtimer *t);
void rvt_add_rnr_timer(struct rvt_qp *qp, u32 aeth);
void rvt_del_timers_sync(struct rvt_qp *qp);
void rvt_stop_rc_timers(struct rvt_qp *qp);
void rvt_add_retry_timer(struct rvt_qp *qp);
#endif /* DEF_RDMAVT_INCQP_H */