Commit 2f16a696 authored by Kaike Wan's avatar Kaike Wan Committed by Doug Ledford
Browse files

IB/hfi1: Add the counter n_tidwait 



This patch adds the counter n_tidwait to count the number of times the
TID resource allocator has to wait for TID resources.

Reviewed-by: default avatarMike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: default avatarAshutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: default avatarKaike Wan <kaike.wan@intel.com>
Signed-off-by: default avatarDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 838b6fd2

drivers/infiniband/hw/hfi1/chip.c

+2 −0
Original line number Diff line number Diff line
@@ -4253,6 +4253,8 @@ static struct cntr_entry dev_cntrs[DEV_CNTR_LAST] = { 
			    access_sw_pio_drain),

[C_SW_KMEM_WAIT] = CNTR_ELEM("KmemWait", 0, 0, CNTR_NORMAL,

			    access_sw_kmem_wait),

[C_SW_TID_WAIT] = CNTR_ELEM("TidWait", 0, 0, CNTR_NORMAL,

			    hfi1_access_sw_tid_wait),

[C_SW_SEND_SCHED] = CNTR_ELEM("SendSched", 0, 0, CNTR_NORMAL,

			    access_sw_send_schedule),

[C_SDMA_DESC_FETCHED_CNT] = CNTR_ELEM("SDEDscFdCn",

drivers/infiniband/hw/hfi1/chip.h

+1 −0
Original line number Diff line number Diff line
@@ -927,6 +927,7 @@ enum { 
	C_SW_PIO_WAIT,

	C_SW_PIO_DRAIN,

	C_SW_KMEM_WAIT,

	C_SW_TID_WAIT,

	C_SW_SEND_SCHED,

	C_SDMA_DESC_FETCHED_CNT,

	C_SDMA_INT_CNT,

drivers/infiniband/hw/hfi1/tid_rdma.c

+9 −0
Original line number Diff line number Diff line
@@ -495,6 +495,7 @@ static void queue_qp_for_tid_wait(struct hfi1_ctxtdata *rcd, 
		qp->s_flags |= HFI1_S_WAIT_TID_SPACE;

		list_add_tail(&priv->tid_wait, &queue->queue_head);

		priv->tid_enqueue = ++queue->enqueue;

		rcd->dd->verbs_dev.n_tidwait++;

		trace_hfi1_qpsleep(qp, HFI1_S_WAIT_TID_SPACE);

		rvt_get_qp(qp);

	}
@@ -1569,3 +1570,11 @@ static void hfi1_init_trdma_req(struct rvt_qp *qp, 
	req->qp = qp;

	req->rcd = qpriv->rcd;

}



u64 hfi1_access_sw_tid_wait(const struct cntr_entry *entry,

			    void *context, int vl, int mode, u64 data)

{

	struct hfi1_devdata *dd = context;



	return dd->verbs_dev.n_tidwait;

}

drivers/infiniband/hw/hfi1/tid_rdma.h

+4 −0
Original line number Diff line number Diff line
@@ -155,4 +155,8 @@ int hfi1_kern_setup_hw_flow(struct hfi1_ctxtdata *rcd, struct rvt_qp *qp); 
void hfi1_kern_clear_hw_flow(struct hfi1_ctxtdata *rcd, struct rvt_qp *qp);

void hfi1_kern_init_ctxt_generations(struct hfi1_ctxtdata *rcd);



struct cntr_entry;

u64 hfi1_access_sw_tid_wait(const struct cntr_entry *entry,

			    void *context, int vl, int mode, u64 data);



#endif /* HFI1_TID_RDMA_H */

drivers/infiniband/hw/hfi1/verbs.h

+1 −0
Original line number Diff line number Diff line
@@ -243,6 +243,7 @@ struct hfi1_ibdev { 
	struct kmem_cache *verbs_txreq_cache;

	u64 n_txwait;

	u64 n_kmem_wait;

	u64 n_tidwait;



	/* protect iowait lists */

	seqlock_t iowait_lock ____cacheline_aligned_in_smp;

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