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author | Yonatan Cohen <yonatanc@mellanox.com> | 2017-03-10 19:23:56 +0300 |
---|---|---|
committer | Doug Ledford <dledford@redhat.com> | 2017-04-21 17:43:28 +0300 |
commit | 0b1e5b99a48b5b810e3e38f1d6e0d39306b99ec0 (patch) | |
tree | fff2c84e9a326664236d60151a946561b27f0990 /drivers/infiniband/sw/rxe/rxe_hw_counters.c | |
parent | 339e7575ade5e961eed3f93609db65bc9d15fc2c (diff) | |
download | linux-0b1e5b99a48b5b810e3e38f1d6e0d39306b99ec0.tar.xz |
IB/rxe: Add port protocol stats
Expose new counters using the get_hw_stats callback.
We expose the following counters:
+---------------------+----------------------------------------+
| Name | Description |
|---------------------+----------------------------------------|
|sent_pkts | number of sent pkts |
|---------------------+----------------------------------------|
|rcvd_pkts | number of received packets |
|---------------------+----------------------------------------|
|out_of_sequence | number of errors due to packet |
| | transport sequence number |
|---------------------+----------------------------------------|
|duplicate_request | number of received duplicated packets. |
| | A request that previously executed is |
| | named duplicated. |
|---------------------+----------------------------------------|
|rcvd_rnr_err | number of received RNR by completer |
|---------------------+----------------------------------------|
|send_rnr_err | number of sent RNR by responder |
|---------------------+----------------------------------------|
|rcvd_seq_err | number of out of sequence packets |
| | received |
|---------------------+----------------------------------------|
|ack_deffered | number of deferred handling of ack |
| | packets. |
|---------------------+----------------------------------------|
|retry_exceeded_err | number of times retry exceeded |
|---------------------+----------------------------------------|
|completer_retry_err | number of times completer decided to |
| | retry |
|---------------------+----------------------------------------|
|send_err | number of failed send packet |
+---------------------+----------------------------------------+
Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com>
Reviewed-by: Moni Shoua <monis@mellanox.com>
Reviewed-by: Andrew Boyer <andrew.boyer@dell.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/sw/rxe/rxe_hw_counters.c')
-rw-r--r-- | drivers/infiniband/sw/rxe/rxe_hw_counters.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_hw_counters.c b/drivers/infiniband/sw/rxe/rxe_hw_counters.c new file mode 100644 index 000000000000..7ef90aad7dfd --- /dev/null +++ b/drivers/infiniband/sw/rxe/rxe_hw_counters.c @@ -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); +} |