@@ -21,4 +21,5 @@ rdma_rxe-y := \
rxe_mcast.o \
rxe_task.o \
rxe_net.o \
- rxe_sysfs.o
+ rxe_sysfs.o \
+ rxe_hw_counters.o
@@ -154,6 +154,8 @@ void rxe_comp_queue_pkt(struct rxe_dev *rxe, struct rxe_qp *qp,
skb_queue_tail(&qp->resp_pkts, skb);
must_sched = skb_queue_len(&qp->resp_pkts) > 1;
+ if (must_sched != 0)
+ rxe_counter_inc(rxe, RXE_CNT_COMPLETER_SCHED);
rxe_run_task(&qp->comp.task, must_sched);
}
@@ -236,6 +238,7 @@ static inline enum comp_state check_ack(struct rxe_qp *qp,
{
unsigned int mask = pkt->mask;
u8 syn;
+ struct rxe_dev *rxe = to_rdev(qp->ibqp.device);
/* Check the sequence only */
switch (qp->comp.opcode) {
@@ -298,6 +301,7 @@ static inline enum comp_state check_ack(struct rxe_qp *qp,
return COMPST_WRITE_SEND;
case AETH_RNR_NAK:
+ rxe_counter_inc(rxe, RXE_CNT_RCV_RNR);
return COMPST_RNR_RETRY;
case AETH_NAK:
@@ -307,6 +311,8 @@ static inline enum comp_state check_ack(struct rxe_qp *qp,
* before
*/
if (psn_compare(pkt->psn, qp->comp.psn) > 0) {
+ rxe_counter_inc(rxe,
+ RXE_CNT_RCV_SEQ_ERR);
qp->comp.psn = pkt->psn;
if (qp->req.wait_psn) {
qp->req.wait_psn = 0;
@@ -534,6 +540,7 @@ static void rxe_drain_resp_pkts(struct rxe_qp *qp, bool notify)
int rxe_completer(void *arg)
{
struct rxe_qp *qp = (struct rxe_qp *)arg;
+ struct rxe_dev *rxe = to_rdev(qp->ibqp.device);
struct rxe_send_wqe *wqe = wqe;
struct sk_buff *skb = NULL;
struct rxe_pkt_info *pkt = NULL;
@@ -683,8 +690,10 @@ int rxe_completer(void *arg)
if (psn_compare(qp->req.psn,
qp->comp.psn) > 0) {
/* tell the requester to retry the
- * send send queue next time around
+ * send queue next time around
*/
+ rxe_counter_inc(rxe,
+ RXE_CNT_COMP_RETRY);
qp->req.need_retry = 1;
rxe_run_task(&qp->req.task, 1);
}
@@ -699,6 +708,7 @@ int rxe_completer(void *arg)
goto exit;
} else {
+ rxe_counter_inc(rxe, RXE_CNT_RETRY_EXCEEDED);
wqe->status = IB_WC_RETRY_EXC_ERR;
state = COMPST_ERROR;
}
@@ -720,6 +730,8 @@ int rxe_completer(void *arg)
skb = NULL;
goto exit;
} else {
+ rxe_counter_inc(rxe,
+ RXE_CNT_RNR_RETRY_EXCEEDED);
wqe->status = IB_WC_RNR_RETRY_EXC_ERR;
state = COMPST_ERROR;
}
new file mode 100644
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2017 Mellanox Technologies Ltd. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * 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.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "rxe.h"
+#include "rxe_hw_counters.h"
+
+const char * const rxe_counter_name[] = {
+ [RXE_CNT_SENT_PKTS] = "sent_pkts",
+ [RXE_CNT_RCVD_PKTS] = "rcvd_pkts",
+ [RXE_CNT_DUP_REQ] = "duplicate_request",
+ [RXE_CNT_OUT_OF_SEQ_REQ] = "out_of_sequence",
+ [RXE_CNT_RCV_RNR] = "rcvd_rnr_err",
+ [RXE_CNT_SND_RNR] = "send_rnr_err",
+ [RXE_CNT_RCV_SEQ_ERR] = "rcvd_seq_err",
+ [RXE_CNT_COMPLETER_SCHED] = "ack_deffered",
+ [RXE_CNT_RETRY_EXCEEDED] = "retry_exceeded_err",
+ [RXE_CNT_RNR_RETRY_EXCEEDED] = "retry_rnr_exceeded_err",
+ [RXE_CNT_COMP_RETRY] = "completer_retry_err",
+ [RXE_CNT_SEND_ERR] = "send_err",
+};
+
+int rxe_ib_get_hw_stats(struct ib_device *ibdev,
+ struct rdma_hw_stats *stats,
+ u8 port, int index)
+{
+ struct rxe_dev *dev = to_rdev(ibdev);
+ unsigned int cnt;
+
+ if (!port || !stats)
+ return -EINVAL;
+
+ for (cnt = 0; cnt < ARRAY_SIZE(rxe_counter_name); cnt++)
+ stats->value[cnt] = dev->stats_counters[cnt];
+
+ return ARRAY_SIZE(rxe_counter_name);
+}
+
+struct rdma_hw_stats *rxe_ib_alloc_hw_stats(struct ib_device *ibdev,
+ u8 port_num)
+{
+ BUILD_BUG_ON(ARRAY_SIZE(rxe_counter_name) != RXE_NUM_OF_COUNTERS);
+ /* We support only per port stats */
+ if (!port_num)
+ return NULL;
+
+ return rdma_alloc_hw_stats_struct(rxe_counter_name,
+ ARRAY_SIZE(rxe_counter_name),
+ RDMA_HW_STATS_DEFAULT_LIFESPAN);
+}
new file mode 100644
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2017 Mellanox Technologies Ltd. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * 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.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef RXE_HW_COUNTERS_H
+#define RXE_HW_COUNTERS_H
+
+/*
+ * when adding counters to enum also add
+ * them to rxe_counter_name[] vector.
+ */
+enum rxe_counters {
+ RXE_CNT_SENT_PKTS,
+ RXE_CNT_RCVD_PKTS,
+ RXE_CNT_DUP_REQ,
+ RXE_CNT_OUT_OF_SEQ_REQ,
+ RXE_CNT_RCV_RNR,
+ RXE_CNT_SND_RNR,
+ RXE_CNT_RCV_SEQ_ERR,
+ RXE_CNT_COMPLETER_SCHED,
+ RXE_CNT_RETRY_EXCEEDED,
+ RXE_CNT_RNR_RETRY_EXCEEDED,
+ RXE_CNT_COMP_RETRY,
+ RXE_CNT_SEND_ERR,
+ RXE_NUM_OF_COUNTERS
+};
+
+struct rdma_hw_stats *rxe_ib_alloc_hw_stats(struct ib_device *ibdev,
+ u8 port_num);
+int rxe_ib_get_hw_stats(struct ib_device *ibdev,
+ struct rdma_hw_stats *stats,
+ u8 port, int index);
+#endif /* RXE_HW_COUNTERS_H */
@@ -280,6 +280,7 @@ static inline int rxe_xmit_packet(struct rxe_dev *rxe, struct rxe_qp *qp,
if (err) {
rxe->xmit_errors++;
+ rxe_counter_inc(rxe, RXE_CNT_SEND_ERR);
return err;
}
@@ -289,6 +290,7 @@ static inline int rxe_xmit_packet(struct rxe_dev *rxe, struct rxe_qp *qp,
rxe_run_task(&qp->comp.task, 1);
}
+ rxe_counter_inc(rxe, RXE_CNT_SENT_PKTS);
goto done;
drop:
@@ -403,6 +403,8 @@ int rxe_rcv(struct sk_buff *skb)
goto drop;
}
+ rxe_counter_inc(rxe, RXE_CNT_RCVD_PKTS);
+
if (unlikely(bth_qpn(pkt) == IB_MULTICAST_QPN))
rxe_rcv_mcast_pkt(rxe, skb);
else
@@ -149,6 +149,7 @@ static enum resp_states check_psn(struct rxe_qp *qp,
struct rxe_pkt_info *pkt)
{
int diff = psn_compare(pkt->psn, qp->resp.psn);
+ struct rxe_dev *rxe = to_rdev(qp->ibqp.device);
switch (qp_type(qp)) {
case IB_QPT_RC:
@@ -157,9 +158,11 @@ static enum resp_states check_psn(struct rxe_qp *qp,
return RESPST_CLEANUP;
qp->resp.sent_psn_nak = 1;
+ rxe_counter_inc(rxe, RXE_CNT_OUT_OF_SEQ_REQ);
return RESPST_ERR_PSN_OUT_OF_SEQ;
} else if (diff < 0) {
+ rxe_counter_inc(rxe, RXE_CNT_DUP_REQ);
return RESPST_DUPLICATE_REQUEST;
}
@@ -1224,6 +1227,7 @@ void rxe_drain_req_pkts(struct rxe_qp *qp, bool notify)
int rxe_responder(void *arg)
{
struct rxe_qp *qp = (struct rxe_qp *)arg;
+ struct rxe_dev *rxe = to_rdev(qp->ibqp.device);
enum resp_states state;
struct rxe_pkt_info *pkt = NULL;
int ret = 0;
@@ -1312,6 +1316,7 @@ int rxe_responder(void *arg)
break;
case RESPST_ERR_RNR:
if (qp_type(qp) == IB_QPT_RC) {
+ rxe_counter_inc(rxe, RXE_CNT_SND_RNR);
/* RC - class B */
send_ack(qp, pkt, AETH_RNR_NAK |
(~AETH_TYPE_MASK &
@@ -34,6 +34,7 @@
#include "rxe.h"
#include "rxe_loc.h"
#include "rxe_queue.h"
+#include "rxe_hw_counters.h"
static int rxe_query_device(struct ib_device *dev,
struct ib_device_attr *attr,
@@ -1315,6 +1316,8 @@ int rxe_register_device(struct rxe_dev *rxe)
dev->map_mr_sg = rxe_map_mr_sg;
dev->attach_mcast = rxe_attach_mcast;
dev->detach_mcast = rxe_detach_mcast;
+ dev->get_hw_stats = rxe_ib_get_hw_stats;
+ dev->alloc_hw_stats = rxe_ib_alloc_hw_stats;
err = ib_register_device(dev, NULL);
if (err) {
@@ -38,6 +38,7 @@
#include <rdma/rdma_user_rxe.h>
#include "rxe_pool.h"
#include "rxe_task.h"
+#include "rxe_hw_counters.h"
static inline int pkey_match(u16 key1, u16 key2)
{
@@ -401,10 +402,17 @@ struct rxe_dev {
spinlock_t mmap_offset_lock; /* guard mmap_offset */
int mmap_offset;
+ u64 stats_counters[RXE_NUM_OF_COUNTERS];
+
struct rxe_port port;
struct list_head list;
};
+static inline void rxe_counter_inc(struct rxe_dev *rxe, enum rxe_counters cnt)
+{
+ rxe->stats_counters[cnt]++;
+}
+
static inline struct rxe_dev *to_rdev(struct ib_device *dev)
{
return dev ? container_of(dev, struct rxe_dev, ib_dev) : NULL;