LXR linux/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls

   1/*
   2 * Copyright (c) 2018 Mellanox Technologies. 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
  34#include <linux/ethtool.h>
  35#include <net/sock.h>
  36
  37#include "en.h"
  38#include "accel/tls.h"
  39#include "fpga/sdk.h"
  40#include "en_accel/tls.h"
  41
  42static const struct counter_desc mlx5e_tls_sw_stats_desc[] = {
  43        { MLX5E_DECLARE_STAT(struct mlx5e_tls_sw_stats, tx_tls_drop_metadata) },
  44        { MLX5E_DECLARE_STAT(struct mlx5e_tls_sw_stats, tx_tls_drop_resync_alloc) },
  45        { MLX5E_DECLARE_STAT(struct mlx5e_tls_sw_stats, tx_tls_drop_no_sync_data) },
  46        { MLX5E_DECLARE_STAT(struct mlx5e_tls_sw_stats, tx_tls_drop_bypass_required) },
  47};
  48
  49#define MLX5E_READ_CTR_ATOMIC64(ptr, dsc, i) \
  50        atomic64_read((atomic64_t *)((char *)(ptr) + (dsc)[i].offset))
  51
  52#define NUM_TLS_SW_COUNTERS ARRAY_SIZE(mlx5e_tls_sw_stats_desc)
  53
  54int mlx5e_tls_get_count(struct mlx5e_priv *priv)
  55{
  56        if (!priv->tls)
  57                return 0;
  58
  59        return NUM_TLS_SW_COUNTERS;
  60}
  61
  62int mlx5e_tls_get_strings(struct mlx5e_priv *priv, uint8_t *data)
  63{
  64        unsigned int i, idx = 0;
  65
  66        if (!priv->tls)
  67                return 0;
  68
  69        for (i = 0; i < NUM_TLS_SW_COUNTERS; i++)
  70                strcpy(data + (idx++) * ETH_GSTRING_LEN,
  71                       mlx5e_tls_sw_stats_desc[i].format);
  72
  73        return NUM_TLS_SW_COUNTERS;
  74}
  75
  76int mlx5e_tls_get_stats(struct mlx5e_priv *priv, u64 *data)
  77{
  78        int i, idx = 0;
  79
  80        if (!priv->tls)
  81                return 0;
  82
  83        for (i = 0; i < NUM_TLS_SW_COUNTERS; i++)
  84                data[idx++] =
  85                    MLX5E_READ_CTR_ATOMIC64(&priv->tls->sw_stats,
  86                                            mlx5e_tls_sw_stats_desc, i);
  87
  88        return NUM_TLS_SW_COUNTERS;
  89}
  90