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linux-next/drivers/infiniband/hw/bnxt_re/hw_counters.c
Selvin Xavier 89f81008ba RDMA/bnxt_re: expose detailed stats retrieved from HW 
Broadcom's adapter supports more granular statistics
to allow better understanding about the state of the
chip when data traffic is flowing.

Exposing the detailed stats to the consumer through
the standard hook available in the kverbs interface.
In order to retrieve all the information, driver
implements a firmware command.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-01-18 14:49:18 -05:00

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/*
* Broadcom NetXtreme-E RoCE driver.
*
* Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term
* Broadcom refers to Broadcom Limited and/or its subsidiaries.
*
* 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
* BSD license below:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Description: Statistics
*
*/
#include <linux/interrupt.h>
#include <linux/types.h>
#include <linux/spinlock.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/prefetch.h>
#include <linux/delay.h>
#include <rdma/ib_addr.h>
#include "bnxt_ulp.h"
#include "roce_hsi.h"
#include "qplib_res.h"
#include "qplib_sp.h"
#include "qplib_fp.h"
#include "qplib_rcfw.h"
#include "bnxt_re.h"
#include "hw_counters.h"
static const char * const bnxt_re_stat_name[] = {
[BNXT_RE_ACTIVE_QP] = "active_qps",
[BNXT_RE_ACTIVE_SRQ] = "active_srqs",
[BNXT_RE_ACTIVE_CQ] = "active_cqs",
[BNXT_RE_ACTIVE_MR] = "active_mrs",
[BNXT_RE_ACTIVE_MW] = "active_mws",
[BNXT_RE_RX_PKTS] = "rx_pkts",
[BNXT_RE_RX_BYTES] = "rx_bytes",
[BNXT_RE_TX_PKTS] = "tx_pkts",
[BNXT_RE_TX_BYTES] = "tx_bytes",
[BNXT_RE_RECOVERABLE_ERRORS] = "recoverable_errors",
[BNXT_RE_TO_RETRANSMITS] = "to_retransmits",
[BNXT_RE_SEQ_ERR_NAKS_RCVD] = "seq_err_naks_rcvd",
[BNXT_RE_MAX_RETRY_EXCEEDED] = "max_retry_exceeded",
[BNXT_RE_RNR_NAKS_RCVD] = "rnr_naks_rcvd",
[BNXT_RE_MISSING_RESP] = "missin_resp",
[BNXT_RE_UNRECOVERABLE_ERR] = "unrecoverable_err",
[BNXT_RE_BAD_RESP_ERR] = "bad_resp_err",
[BNXT_RE_LOCAL_QP_OP_ERR] = "local_qp_op_err",
[BNXT_RE_LOCAL_PROTECTION_ERR] = "local_protection_err",
[BNXT_RE_MEM_MGMT_OP_ERR] = "mem_mgmt_op_err",
[BNXT_RE_REMOTE_INVALID_REQ_ERR] = "remote_invalid_req_err",
[BNXT_RE_REMOTE_ACCESS_ERR] = "remote_access_err",
[BNXT_RE_REMOTE_OP_ERR] = "remote_op_err",
[BNXT_RE_DUP_REQ] = "dup_req",
[BNXT_RE_RES_EXCEED_MAX] = "res_exceed_max",
[BNXT_RE_RES_LENGTH_MISMATCH] = "res_length_mismatch",
[BNXT_RE_RES_EXCEEDS_WQE] = "res_exceeds_wqe",
[BNXT_RE_RES_OPCODE_ERR] = "res_opcode_err",
[BNXT_RE_RES_RX_INVALID_RKEY] = "res_rx_invalid_rkey",
[BNXT_RE_RES_RX_DOMAIN_ERR] = "res_rx_domain_err",
[BNXT_RE_RES_RX_NO_PERM] = "res_rx_no_perm",
[BNXT_RE_RES_RX_RANGE_ERR] = "res_rx_range_err",
[BNXT_RE_RES_TX_INVALID_RKEY] = "res_tx_invalid_rkey",
[BNXT_RE_RES_TX_DOMAIN_ERR] = "res_tx_domain_err",
[BNXT_RE_RES_TX_NO_PERM] = "res_tx_no_perm",
[BNXT_RE_RES_TX_RANGE_ERR] = "res_tx_range_err",
[BNXT_RE_RES_IRRQ_OFLOW] = "res_irrq_oflow",
[BNXT_RE_RES_UNSUP_OPCODE] = "res_unsup_opcode",
[BNXT_RE_RES_UNALIGNED_ATOMIC] = "res_unaligned_atomic",
[BNXT_RE_RES_REM_INV_ERR] = "res_rem_inv_err",
[BNXT_RE_RES_MEM_ERROR] = "res_mem_err",
[BNXT_RE_RES_SRQ_ERR] = "res_srq_err",
[BNXT_RE_RES_CMP_ERR] = "res_cmp_err",
[BNXT_RE_RES_INVALID_DUP_RKEY] = "res_invalid_dup_rkey",
[BNXT_RE_RES_WQE_FORMAT_ERR] = "res_wqe_format_err",
[BNXT_RE_RES_CQ_LOAD_ERR] = "res_cq_load_err",
[BNXT_RE_RES_SRQ_LOAD_ERR] = "res_srq_load_err",
[BNXT_RE_RES_TX_PCI_ERR] = "res_tx_pci_err",
[BNXT_RE_RES_RX_PCI_ERR] = "res_rx_pci_err"
};
int bnxt_re_ib_get_hw_stats(struct ib_device *ibdev,
struct rdma_hw_stats *stats,
u8 port, int index)
{
struct bnxt_re_dev *rdev = to_bnxt_re_dev(ibdev, ibdev);
struct ctx_hw_stats *bnxt_re_stats = rdev->qplib_ctx.stats.dma;
int rc = 0;
if (!port || !stats)
return -EINVAL;
stats->value[BNXT_RE_ACTIVE_QP] = atomic_read(&rdev->qp_count);
stats->value[BNXT_RE_ACTIVE_SRQ] = atomic_read(&rdev->srq_count);
stats->value[BNXT_RE_ACTIVE_CQ] = atomic_read(&rdev->cq_count);
stats->value[BNXT_RE_ACTIVE_MR] = atomic_read(&rdev->mr_count);
stats->value[BNXT_RE_ACTIVE_MW] = atomic_read(&rdev->mw_count);
if (bnxt_re_stats) {
stats->value[BNXT_RE_RECOVERABLE_ERRORS] =
le64_to_cpu(bnxt_re_stats->tx_bcast_pkts);
stats->value[BNXT_RE_RX_PKTS] =
le64_to_cpu(bnxt_re_stats->rx_ucast_pkts);
stats->value[BNXT_RE_RX_BYTES] =
le64_to_cpu(bnxt_re_stats->rx_ucast_bytes);
stats->value[BNXT_RE_TX_PKTS] =
le64_to_cpu(bnxt_re_stats->tx_ucast_pkts);
stats->value[BNXT_RE_TX_BYTES] =
le64_to_cpu(bnxt_re_stats->tx_ucast_bytes);
}
if (test_bit(BNXT_RE_FLAG_ISSUE_ROCE_STATS, &rdev->flags)) {
rc = bnxt_qplib_get_roce_stats(&rdev->rcfw, &rdev->stats);
if (rc)
clear_bit(BNXT_RE_FLAG_ISSUE_ROCE_STATS,
&rdev->flags);
stats->value[BNXT_RE_TO_RETRANSMITS] =
rdev->stats.to_retransmits;
stats->value[BNXT_RE_SEQ_ERR_NAKS_RCVD] =
rdev->stats.seq_err_naks_rcvd;
stats->value[BNXT_RE_MAX_RETRY_EXCEEDED] =
rdev->stats.max_retry_exceeded;
stats->value[BNXT_RE_RNR_NAKS_RCVD] =
rdev->stats.rnr_naks_rcvd;
stats->value[BNXT_RE_MISSING_RESP] =
rdev->stats.missing_resp;
stats->value[BNXT_RE_UNRECOVERABLE_ERR] =
rdev->stats.unrecoverable_err;
stats->value[BNXT_RE_BAD_RESP_ERR] =
rdev->stats.bad_resp_err;
stats->value[BNXT_RE_LOCAL_QP_OP_ERR] =
rdev->stats.local_qp_op_err;
stats->value[BNXT_RE_LOCAL_PROTECTION_ERR] =
rdev->stats.local_protection_err;
stats->value[BNXT_RE_MEM_MGMT_OP_ERR] =
rdev->stats.mem_mgmt_op_err;
stats->value[BNXT_RE_REMOTE_INVALID_REQ_ERR] =
rdev->stats.remote_invalid_req_err;
stats->value[BNXT_RE_REMOTE_ACCESS_ERR] =
rdev->stats.remote_access_err;
stats->value[BNXT_RE_REMOTE_OP_ERR] =
rdev->stats.remote_op_err;
stats->value[BNXT_RE_DUP_REQ] =
rdev->stats.dup_req;
stats->value[BNXT_RE_RES_EXCEED_MAX] =
rdev->stats.res_exceed_max;
stats->value[BNXT_RE_RES_LENGTH_MISMATCH] =
rdev->stats.res_length_mismatch;
stats->value[BNXT_RE_RES_EXCEEDS_WQE] =
rdev->stats.res_exceeds_wqe;
stats->value[BNXT_RE_RES_OPCODE_ERR] =
rdev->stats.res_opcode_err;
stats->value[BNXT_RE_RES_RX_INVALID_RKEY] =
rdev->stats.res_rx_invalid_rkey;
stats->value[BNXT_RE_RES_RX_DOMAIN_ERR] =
rdev->stats.res_rx_domain_err;
stats->value[BNXT_RE_RES_RX_NO_PERM] =
rdev->stats.res_rx_no_perm;
stats->value[BNXT_RE_RES_RX_RANGE_ERR] =
rdev->stats.res_rx_range_err;
stats->value[BNXT_RE_RES_TX_INVALID_RKEY] =
rdev->stats.res_tx_invalid_rkey;
stats->value[BNXT_RE_RES_TX_DOMAIN_ERR] =
rdev->stats.res_tx_domain_err;
stats->value[BNXT_RE_RES_TX_NO_PERM] =
rdev->stats.res_tx_no_perm;
stats->value[BNXT_RE_RES_TX_RANGE_ERR] =
rdev->stats.res_tx_range_err;
stats->value[BNXT_RE_RES_IRRQ_OFLOW] =
rdev->stats.res_irrq_oflow;
stats->value[BNXT_RE_RES_UNSUP_OPCODE] =
rdev->stats.res_unsup_opcode;
stats->value[BNXT_RE_RES_UNALIGNED_ATOMIC] =
rdev->stats.res_unaligned_atomic;
stats->value[BNXT_RE_RES_REM_INV_ERR] =
rdev->stats.res_rem_inv_err;
stats->value[BNXT_RE_RES_MEM_ERROR] =
rdev->stats.res_mem_error;
stats->value[BNXT_RE_RES_SRQ_ERR] =
rdev->stats.res_srq_err;
stats->value[BNXT_RE_RES_CMP_ERR] =
rdev->stats.res_cmp_err;
stats->value[BNXT_RE_RES_INVALID_DUP_RKEY] =
rdev->stats.res_invalid_dup_rkey;
stats->value[BNXT_RE_RES_WQE_FORMAT_ERR] =
rdev->stats.res_wqe_format_err;
stats->value[BNXT_RE_RES_CQ_LOAD_ERR] =
rdev->stats.res_cq_load_err;
stats->value[BNXT_RE_RES_SRQ_LOAD_ERR] =
rdev->stats.res_srq_load_err;
stats->value[BNXT_RE_RES_TX_PCI_ERR] =
rdev->stats.res_tx_pci_err;
stats->value[BNXT_RE_RES_RX_PCI_ERR] =
rdev->stats.res_rx_pci_err;
}
return ARRAY_SIZE(bnxt_re_stat_name);
}
struct rdma_hw_stats *bnxt_re_ib_alloc_hw_stats(struct ib_device *ibdev,
u8 port_num)
{
BUILD_BUG_ON(ARRAY_SIZE(bnxt_re_stat_name) != BNXT_RE_NUM_COUNTERS);
/* We support only per port stats */
if (!port_num)
return NULL;
return rdma_alloc_hw_stats_struct(bnxt_re_stat_name,
ARRAY_SIZE(bnxt_re_stat_name),
RDMA_HW_STATS_DEFAULT_LIFESPAN);
}
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