1 /* 2 * Copyright (c) 2017 Mellanox Technologies Ltd. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 33 #include "rxe.h" 34 #include "rxe_hw_counters.h" 35 36 static const char * const rxe_counter_name[] = { 37 [RXE_CNT_SENT_PKTS] = "sent_pkts", 38 [RXE_CNT_RCVD_PKTS] = "rcvd_pkts", 39 [RXE_CNT_DUP_REQ] = "duplicate_request", 40 [RXE_CNT_OUT_OF_SEQ_REQ] = "out_of_seq_request", 41 [RXE_CNT_RCV_RNR] = "rcvd_rnr_err", 42 [RXE_CNT_SND_RNR] = "send_rnr_err", 43 [RXE_CNT_RCV_SEQ_ERR] = "rcvd_seq_err", 44 [RXE_CNT_COMPLETER_SCHED] = "ack_deferred", 45 [RXE_CNT_RETRY_EXCEEDED] = "retry_exceeded_err", 46 [RXE_CNT_RNR_RETRY_EXCEEDED] = "retry_rnr_exceeded_err", 47 [RXE_CNT_COMP_RETRY] = "completer_retry_err", 48 [RXE_CNT_SEND_ERR] = "send_err", 49 [RXE_CNT_LINK_DOWNED] = "link_downed", 50 [RXE_CNT_RDMA_SEND] = "rdma_sends", 51 [RXE_CNT_RDMA_RECV] = "rdma_recvs", 52 }; 53 54 int rxe_ib_get_hw_stats(struct ib_device *ibdev, 55 struct rdma_hw_stats *stats, 56 u8 port, int index) 57 { 58 struct rxe_dev *dev = to_rdev(ibdev); 59 unsigned int cnt; 60 61 if (!port || !stats) 62 return -EINVAL; 63 64 for (cnt = 0; cnt < ARRAY_SIZE(rxe_counter_name); cnt++) 65 stats->value[cnt] = atomic64_read(&dev->stats_counters[cnt]); 66 67 return ARRAY_SIZE(rxe_counter_name); 68 } 69 70 struct rdma_hw_stats *rxe_ib_alloc_hw_stats(struct ib_device *ibdev, 71 u8 port_num) 72 { 73 BUILD_BUG_ON(ARRAY_SIZE(rxe_counter_name) != RXE_NUM_OF_COUNTERS); 74 /* We support only per port stats */ 75 if (!port_num) 76 return NULL; 77 78 return rdma_alloc_hw_stats_struct(rxe_counter_name, 79 ARRAY_SIZE(rxe_counter_name), 80 RDMA_HW_STATS_DEFAULT_LIFESPAN); 81 } 82