staging/rdma/hfi1: add unique rnr timer

Add a new rnr timer to hfi1.

This allows for future optimizations having the
retry and rnr timers separate.
Reviewed-by: NJubin John <jubin.john@intel.com>
Signed-off-by: NMike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

drivers/staging/rdma/hfi1/qp.c

@@ -607,7 +607,7 @@ void *qp_priv_alloc(struct rvt_dev_info *rdi, struct rvt_qp *qp,
 		kfree(priv);
 		return ERR_PTR(-ENOMEM);
 	}
-
+	setup_timer(&priv->s_rnr_timer, hfi1_rc_rnr_retry, (unsigned long)qp);
 	return priv;
 }
 

drivers/staging/rdma/hfi1/rc.c

@@ -164,7 +164,7 @@ static inline int hfi1_stop_rnr_timer(struct rvt_qp *qp)
  * hfi1_del_timers_sync - wait for any timeout routines to exit
  * @qp - the QP
  */
-static inline void hfi1_del_timers_sync(struct rvt_qp *qp)
+void hfi1_del_timers_sync(struct rvt_qp *qp)
 {
 	del_timer_sync(&qp->s_timer);
 }

drivers/staging/rdma/hfi1/verbs.h

@@ -210,6 +210,7 @@ struct hfi1_qp_priv {
 	u8 s_sc;		     /* SC[0..4] for next packet */
 	u8 r_adefered;               /* number of acks defered */
 	struct iowait s_iowait;
+	struct timer_list s_rnr_timer;
 	struct rvt_qp *owner;
 };
 
@@ -403,6 +404,7 @@ u8 ah_to_sc(struct ib_device *ibdev, struct ib_ah_attr *ah_attr);
 struct ib_ah *hfi1_create_qp0_ah(struct hfi1_ibport *ibp, u16 dlid);
 
 void hfi1_rc_rnr_retry(unsigned long arg);
+void hfi1_del_timers_sync(struct rvt_qp *qp);
 
 void hfi1_rc_send_complete(struct rvt_qp *qp, struct hfi1_ib_header *hdr);