drivers/infiniband/hw/bnxt_re/hw_counters.c

   1 /*
   2  * Broadcom NetXtreme-E RoCE driver.
   3  *
   4  * Copyright (c) 2016 - 2017, Broadcom. All rights reserved.  The term
   5  * Broadcom refers to Broadcom Limited and/or its subsidiaries.
   6  *
   7  * This software is available to you under a choice of one of two
   8  * licenses.  You may choose to be licensed under the terms of the GNU
   9  * General Public License (GPL) Version 2, available from the file
  10  * COPYING in the main directory of this source tree, or the
  11  * BSD license below:
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  *
  17  * 1. Redistributions of source code must retain the above copyright
  18  *    notice, this list of conditions and the following disclaimer.
  19  * 2. Redistributions in binary form must reproduce the above copyright
  20  *    notice, this list of conditions and the following disclaimer in
  21  *    the documentation and/or other materials provided with the
  22  *    distribution.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
  25  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  26  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  27  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
  28  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  31  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  32  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  33  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  34  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35  *
  36  * Description: Statistics
  37  *
  38  */
  39
  40 #include <linux/interrupt.h>
  41 #include <linux/types.h>
  42 #include <linux/spinlock.h>
  43 #include <linux/sched.h>
  44 #include <linux/slab.h>
  45 #include <linux/pci.h>
  46 #include <linux/prefetch.h>
  47 #include <linux/delay.h>
  48
  49 #include <rdma/ib_addr.h>
  50
  51 #include "bnxt_ulp.h"
  52 #include "roce_hsi.h"
  53 #include "qplib_res.h"
  54 #include "qplib_sp.h"
  55 #include "qplib_fp.h"
  56 #include "qplib_rcfw.h"
  57 #include "bnxt_re.h"
  58 #include "hw_counters.h"
  59
  60 static const struct rdma_stat_desc bnxt_re_stat_descs[] = {
  61         [BNXT_RE_ACTIVE_PD].name                =  "active_pds",
  62         [BNXT_RE_ACTIVE_AH].name                =  "active_ahs",
  63         [BNXT_RE_ACTIVE_QP].name                =  "active_qps",
  64         [BNXT_RE_ACTIVE_SRQ].name               =  "active_srqs",
  65         [BNXT_RE_ACTIVE_CQ].name                =  "active_cqs",
  66         [BNXT_RE_ACTIVE_MR].name                =  "active_mrs",
  67         [BNXT_RE_ACTIVE_MW].name                =  "active_mws",
  68         [BNXT_RE_RX_PKTS].name          =  "rx_pkts",
  69         [BNXT_RE_RX_BYTES].name         =  "rx_bytes",
  70         [BNXT_RE_TX_PKTS].name          =  "tx_pkts",
  71         [BNXT_RE_TX_BYTES].name         =  "tx_bytes",
  72         [BNXT_RE_RECOVERABLE_ERRORS].name       =  "recoverable_errors",
  73         [BNXT_RE_RX_ERRORS].name                =  "rx_roce_errors",
  74         [BNXT_RE_RX_DISCARDS].name              =  "rx_roce_discards",
  75         [BNXT_RE_TO_RETRANSMITS].name        = "to_retransmits",
  76         [BNXT_RE_SEQ_ERR_NAKS_RCVD].name     = "seq_err_naks_rcvd",
  77         [BNXT_RE_MAX_RETRY_EXCEEDED].name    = "max_retry_exceeded",
  78         [BNXT_RE_RNR_NAKS_RCVD].name         = "rnr_naks_rcvd",
  79         [BNXT_RE_MISSING_RESP].name          = "missing_resp",
  80         [BNXT_RE_UNRECOVERABLE_ERR].name     = "unrecoverable_err",
  81         [BNXT_RE_BAD_RESP_ERR].name          = "bad_resp_err",
  82         [BNXT_RE_LOCAL_QP_OP_ERR].name       = "local_qp_op_err",
  83         [BNXT_RE_LOCAL_PROTECTION_ERR].name  = "local_protection_err",
  84         [BNXT_RE_MEM_MGMT_OP_ERR].name       = "mem_mgmt_op_err",
  85         [BNXT_RE_REMOTE_INVALID_REQ_ERR].name = "remote_invalid_req_err",
  86         [BNXT_RE_REMOTE_ACCESS_ERR].name     = "remote_access_err",
  87         [BNXT_RE_REMOTE_OP_ERR].name         = "remote_op_err",
  88         [BNXT_RE_DUP_REQ].name               = "dup_req",
  89         [BNXT_RE_RES_EXCEED_MAX].name        = "res_exceed_max",
  90         [BNXT_RE_RES_LENGTH_MISMATCH].name   = "res_length_mismatch",
  91         [BNXT_RE_RES_EXCEEDS_WQE].name       = "res_exceeds_wqe",
  92         [BNXT_RE_RES_OPCODE_ERR].name        = "res_opcode_err",
  93         [BNXT_RE_RES_RX_INVALID_RKEY].name   = "res_rx_invalid_rkey",
  94         [BNXT_RE_RES_RX_DOMAIN_ERR].name     = "res_rx_domain_err",
  95         [BNXT_RE_RES_RX_NO_PERM].name        = "res_rx_no_perm",
  96         [BNXT_RE_RES_RX_RANGE_ERR].name      = "res_rx_range_err",
  97         [BNXT_RE_RES_TX_INVALID_RKEY].name   = "res_tx_invalid_rkey",
  98         [BNXT_RE_RES_TX_DOMAIN_ERR].name     = "res_tx_domain_err",
  99         [BNXT_RE_RES_TX_NO_PERM].name        = "res_tx_no_perm",
 100         [BNXT_RE_RES_TX_RANGE_ERR].name      = "res_tx_range_err",
 101         [BNXT_RE_RES_IRRQ_OFLOW].name        = "res_irrq_oflow",
 102         [BNXT_RE_RES_UNSUP_OPCODE].name      = "res_unsup_opcode",
 103         [BNXT_RE_RES_UNALIGNED_ATOMIC].name  = "res_unaligned_atomic",
 104         [BNXT_RE_RES_REM_INV_ERR].name       = "res_rem_inv_err",
 105         [BNXT_RE_RES_MEM_ERROR].name         = "res_mem_err",
 106         [BNXT_RE_RES_SRQ_ERR].name           = "res_srq_err",
 107         [BNXT_RE_RES_CMP_ERR].name           = "res_cmp_err",
 108         [BNXT_RE_RES_INVALID_DUP_RKEY].name  = "res_invalid_dup_rkey",
 109         [BNXT_RE_RES_WQE_FORMAT_ERR].name    = "res_wqe_format_err",
 110         [BNXT_RE_RES_CQ_LOAD_ERR].name       = "res_cq_load_err",
 111         [BNXT_RE_RES_SRQ_LOAD_ERR].name      = "res_srq_load_err",
 112         [BNXT_RE_RES_TX_PCI_ERR].name        = "res_tx_pci_err",
 113         [BNXT_RE_RES_RX_PCI_ERR].name        = "res_rx_pci_err",
 114         [BNXT_RE_OUT_OF_SEQ_ERR].name        = "oos_drop_count",
 115         [BNXT_RE_TX_ATOMIC_REQ].name         = "tx_atomic_req",
 116         [BNXT_RE_TX_READ_REQ].name           = "tx_read_req",
 117         [BNXT_RE_TX_READ_RES].name           = "tx_read_resp",
 118         [BNXT_RE_TX_WRITE_REQ].name          = "tx_write_req",
 119         [BNXT_RE_TX_SEND_REQ].name           = "tx_send_req",
 120         [BNXT_RE_RX_ATOMIC_REQ].name         = "rx_atomic_req",
 121         [BNXT_RE_RX_READ_REQ].name           = "rx_read_req",
 122         [BNXT_RE_RX_READ_RESP].name          = "rx_read_resp",
 123         [BNXT_RE_RX_WRITE_REQ].name          = "rx_write_req",
 124         [BNXT_RE_RX_SEND_REQ].name           = "rx_send_req",
 125         [BNXT_RE_RX_ROCE_GOOD_PKTS].name     = "rx_roce_good_pkts",
 126         [BNXT_RE_RX_ROCE_GOOD_BYTES].name    = "rx_roce_good_bytes",
 127         [BNXT_RE_OOB].name                   = "rx_out_of_buffer"
 128 };
 129
 130 static void bnxt_re_copy_ext_stats(struct bnxt_re_dev *rdev,
 131                                    struct rdma_hw_stats *stats,
 132                                    struct bnxt_qplib_ext_stat *s)
 133 {
 134         stats->value[BNXT_RE_TX_ATOMIC_REQ] = s->tx_atomic_req;
 135         stats->value[BNXT_RE_TX_READ_REQ]   = s->tx_read_req;
 136         stats->value[BNXT_RE_TX_READ_RES]   = s->tx_read_res;
 137         stats->value[BNXT_RE_TX_WRITE_REQ]  = s->tx_write_req;
 138         stats->value[BNXT_RE_TX_SEND_REQ]   = s->tx_send_req;
 139         stats->value[BNXT_RE_RX_ATOMIC_REQ] = s->rx_atomic_req;
 140         stats->value[BNXT_RE_RX_READ_REQ]   = s->rx_read_req;
 141         stats->value[BNXT_RE_RX_READ_RESP]  = s->rx_read_res;
 142         stats->value[BNXT_RE_RX_WRITE_REQ]  = s->rx_write_req;
 143         stats->value[BNXT_RE_RX_SEND_REQ]   = s->rx_send_req;
 144         stats->value[BNXT_RE_RX_ROCE_GOOD_PKTS] = s->rx_roce_good_pkts;
 145         stats->value[BNXT_RE_RX_ROCE_GOOD_BYTES] = s->rx_roce_good_bytes;
 146         stats->value[BNXT_RE_OOB] = s->rx_out_of_buffer;
 147 }
 148
 149 static int bnxt_re_get_ext_stat(struct bnxt_re_dev *rdev,
 150                                 struct rdma_hw_stats *stats)
 151 {
 152         struct bnxt_qplib_ext_stat *estat = &rdev->stats.rstat.ext_stat;
 153         u32 fid;
 154         int rc;
 155
 156         fid = PCI_FUNC(rdev->en_dev->pdev->devfn);
 157         rc = bnxt_qplib_qext_stat(&rdev->rcfw, fid, estat);
 158         if (rc)
 159                 goto done;
 160         bnxt_re_copy_ext_stats(rdev, stats, estat);
 161
 162 done:
 163         return rc;
 164 }
 165
 166 static void bnxt_re_copy_err_stats(struct bnxt_re_dev *rdev,
 167                                    struct rdma_hw_stats *stats,
 168                                    struct bnxt_qplib_roce_stats *err_s)
 169 {
 170         stats->value[BNXT_RE_TO_RETRANSMITS] =
 171                                 err_s->to_retransmits;
 172         stats->value[BNXT_RE_SEQ_ERR_NAKS_RCVD] =
 173                                 err_s->seq_err_naks_rcvd;
 174         stats->value[BNXT_RE_MAX_RETRY_EXCEEDED] =
 175                                 err_s->max_retry_exceeded;
 176         stats->value[BNXT_RE_RNR_NAKS_RCVD] =
 177                                 err_s->rnr_naks_rcvd;
 178         stats->value[BNXT_RE_MISSING_RESP] =
 179                                 err_s->missing_resp;
 180         stats->value[BNXT_RE_UNRECOVERABLE_ERR] =
 181                                 err_s->unrecoverable_err;
 182         stats->value[BNXT_RE_BAD_RESP_ERR] =
 183                                 err_s->bad_resp_err;
 184         stats->value[BNXT_RE_LOCAL_QP_OP_ERR]   =
 185                         err_s->local_qp_op_err;
 186         stats->value[BNXT_RE_LOCAL_PROTECTION_ERR] =
 187                         err_s->local_protection_err;
 188         stats->value[BNXT_RE_MEM_MGMT_OP_ERR] =
 189                         err_s->mem_mgmt_op_err;
 190         stats->value[BNXT_RE_REMOTE_INVALID_REQ_ERR] =
 191                         err_s->remote_invalid_req_err;
 192         stats->value[BNXT_RE_REMOTE_ACCESS_ERR] =
 193                         err_s->remote_access_err;
 194         stats->value[BNXT_RE_REMOTE_OP_ERR] =
 195                         err_s->remote_op_err;
 196         stats->value[BNXT_RE_DUP_REQ] =
 197                         err_s->dup_req;
 198         stats->value[BNXT_RE_RES_EXCEED_MAX] =
 199                         err_s->res_exceed_max;
 200         stats->value[BNXT_RE_RES_LENGTH_MISMATCH] =
 201                         err_s->res_length_mismatch;
 202         stats->value[BNXT_RE_RES_EXCEEDS_WQE] =
 203                         err_s->res_exceeds_wqe;
 204         stats->value[BNXT_RE_RES_OPCODE_ERR] =
 205                         err_s->res_opcode_err;
 206         stats->value[BNXT_RE_RES_RX_INVALID_RKEY] =
 207                         err_s->res_rx_invalid_rkey;
 208         stats->value[BNXT_RE_RES_RX_DOMAIN_ERR] =
 209                         err_s->res_rx_domain_err;
 210         stats->value[BNXT_RE_RES_RX_NO_PERM] =
 211                         err_s->res_rx_no_perm;
 212         stats->value[BNXT_RE_RES_RX_RANGE_ERR]  =
 213                         err_s->res_rx_range_err;
 214         stats->value[BNXT_RE_RES_TX_INVALID_RKEY] =
 215                         err_s->res_tx_invalid_rkey;
 216         stats->value[BNXT_RE_RES_TX_DOMAIN_ERR] =
 217                         err_s->res_tx_domain_err;
 218         stats->value[BNXT_RE_RES_TX_NO_PERM] =
 219                         err_s->res_tx_no_perm;
 220         stats->value[BNXT_RE_RES_TX_RANGE_ERR]  =
 221                         err_s->res_tx_range_err;
 222         stats->value[BNXT_RE_RES_IRRQ_OFLOW] =
 223                         err_s->res_irrq_oflow;
 224         stats->value[BNXT_RE_RES_UNSUP_OPCODE]  =
 225                         err_s->res_unsup_opcode;
 226         stats->value[BNXT_RE_RES_UNALIGNED_ATOMIC] =
 227                         err_s->res_unaligned_atomic;
 228         stats->value[BNXT_RE_RES_REM_INV_ERR]   =
 229                         err_s->res_rem_inv_err;
 230         stats->value[BNXT_RE_RES_MEM_ERROR] =
 231                         err_s->res_mem_error;
 232         stats->value[BNXT_RE_RES_SRQ_ERR] =
 233                         err_s->res_srq_err;
 234         stats->value[BNXT_RE_RES_CMP_ERR] =
 235                         err_s->res_cmp_err;
 236         stats->value[BNXT_RE_RES_INVALID_DUP_RKEY] =
 237                         err_s->res_invalid_dup_rkey;
 238         stats->value[BNXT_RE_RES_WQE_FORMAT_ERR] =
 239                         err_s->res_wqe_format_err;
 240         stats->value[BNXT_RE_RES_CQ_LOAD_ERR]   =
 241                         err_s->res_cq_load_err;
 242         stats->value[BNXT_RE_RES_SRQ_LOAD_ERR]  =
 243                         err_s->res_srq_load_err;
 244         stats->value[BNXT_RE_RES_TX_PCI_ERR]    =
 245                         err_s->res_tx_pci_err;
 246         stats->value[BNXT_RE_RES_RX_PCI_ERR]    =
 247                         err_s->res_rx_pci_err;
 248         stats->value[BNXT_RE_OUT_OF_SEQ_ERR]    =
 249                         err_s->res_oos_drop_count;
 250 }
 251
 252 int bnxt_re_ib_get_hw_stats(struct ib_device *ibdev,
 253                             struct rdma_hw_stats *stats,
 254                             u32 port, int index)
 255 {
 256         struct bnxt_re_dev *rdev = to_bnxt_re_dev(ibdev, ibdev);
 257         struct ctx_hw_stats *hw_stats = NULL;
 258         struct bnxt_qplib_roce_stats *err_s = NULL;
 259         int rc  = 0;
 260
 261         hw_stats = rdev->qplib_ctx.stats.dma;
 262         if (!port || !stats)
 263                 return -EINVAL;
 264
 265         stats->value[BNXT_RE_ACTIVE_QP] = atomic_read(&rdev->qp_count);
 266         stats->value[BNXT_RE_ACTIVE_SRQ] = atomic_read(&rdev->srq_count);
 267         stats->value[BNXT_RE_ACTIVE_CQ] = atomic_read(&rdev->cq_count);
 268         stats->value[BNXT_RE_ACTIVE_MR] = atomic_read(&rdev->mr_count);
 269         stats->value[BNXT_RE_ACTIVE_MW] = atomic_read(&rdev->mw_count);
 270         stats->value[BNXT_RE_ACTIVE_PD] = atomic_read(&rdev->pd_count);
 271         stats->value[BNXT_RE_ACTIVE_AH] = atomic_read(&rdev->ah_count);
 272
 273         if (hw_stats) {
 274                 stats->value[BNXT_RE_RECOVERABLE_ERRORS] =
 275                         le64_to_cpu(hw_stats->tx_bcast_pkts);
 276                 stats->value[BNXT_RE_RX_ERRORS] =
 277                         le64_to_cpu(hw_stats->rx_error_pkts);
 278                 stats->value[BNXT_RE_RX_DISCARDS] =
 279                         le64_to_cpu(hw_stats->rx_discard_pkts);
 280                 stats->value[BNXT_RE_RX_PKTS] =
 281                         le64_to_cpu(hw_stats->rx_ucast_pkts);
 282                 stats->value[BNXT_RE_RX_BYTES] =
 283                         le64_to_cpu(hw_stats->rx_ucast_bytes);
 284                 stats->value[BNXT_RE_TX_PKTS] =
 285                         le64_to_cpu(hw_stats->tx_ucast_pkts);
 286                 stats->value[BNXT_RE_TX_BYTES] =
 287                         le64_to_cpu(hw_stats->tx_ucast_bytes);
 288         }
 289         err_s = &rdev->stats.rstat.errs;
 290         if (test_bit(BNXT_RE_FLAG_ISSUE_ROCE_STATS, &rdev->flags)) {
 291                 rc = bnxt_qplib_get_roce_stats(&rdev->rcfw, err_s);
 292                 if (rc) {
 293                         clear_bit(BNXT_RE_FLAG_ISSUE_ROCE_STATS,
 294                                   &rdev->flags);
 295                         goto done;
 296                 }
 297                 if (_is_ext_stats_supported(rdev->dev_attr.dev_cap_flags) &&
 298                     !rdev->is_virtfn) {
 299                         rc = bnxt_re_get_ext_stat(rdev, stats);
 300                         if (rc) {
 301                                 clear_bit(BNXT_RE_FLAG_ISSUE_ROCE_STATS,
 302                                           &rdev->flags);
 303                                 goto done;
 304                         }
 305                 }
 306                 bnxt_re_copy_err_stats(rdev, stats, err_s);
 307         }
 308
 309 done:
 310         return bnxt_qplib_is_chip_gen_p5(rdev->chip_ctx) ?
 311                 BNXT_RE_NUM_EXT_COUNTERS : BNXT_RE_NUM_STD_COUNTERS;
 312 }
 313
 314 struct rdma_hw_stats *bnxt_re_ib_alloc_hw_port_stats(struct ib_device *ibdev,
 315                                                      u32 port_num)
 316 {
 317         struct bnxt_re_dev *rdev = to_bnxt_re_dev(ibdev, ibdev);
 318         int num_counters = 0;
 319
 320         if (bnxt_qplib_is_chip_gen_p5(rdev->chip_ctx))
 321                 num_counters = BNXT_RE_NUM_EXT_COUNTERS;
 322         else
 323                 num_counters = BNXT_RE_NUM_STD_COUNTERS;
 324
 325         return rdma_alloc_hw_stats_struct(bnxt_re_stat_descs, num_counters,
 326                                           RDMA_HW_STATS_DEFAULT_LIFESPAN);
 327 }