LXR linux/drivers/net/ethernet/qlogic/qed/qed

   1/* QLogic qed NIC Driver
   2 * Copyright (c) 2015-2017  QLogic Corporation
   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#ifndef _QED_DCBX_H
  34#define _QED_DCBX_H
  35#include <linux/types.h>
  36#include <linux/slab.h>
  37#include "qed.h"
  38#include "qed_hsi.h"
  39#include "qed_hw.h"
  40#include "qed_mcp.h"
  41#include "qed_reg_addr.h"
  42
  43#define DCBX_CONFIG_MAX_APP_PROTOCOL    4
  44
  45enum qed_mib_read_type {
  46        QED_DCBX_OPERATIONAL_MIB,
  47        QED_DCBX_REMOTE_MIB,
  48        QED_DCBX_LOCAL_MIB,
  49        QED_DCBX_REMOTE_LLDP_MIB,
  50        QED_DCBX_LOCAL_LLDP_MIB
  51};
  52
  53struct qed_dcbx_app_data {
  54        bool enable;            /* DCB enabled */
  55        u8 update;              /* Update indication */
  56        u8 priority;            /* Priority */
  57        u8 tc;                  /* Traffic Class */
  58        bool dont_add_vlan0;    /* Do not insert a vlan tag with id 0 */
  59};
  60
  61#define QED_DCBX_VERSION_DISABLED       0
  62#define QED_DCBX_VERSION_IEEE           1
  63#define QED_DCBX_VERSION_CEE            2
  64
  65struct qed_dcbx_set {
  66#define QED_DCBX_OVERRIDE_STATE         BIT(0)
  67#define QED_DCBX_OVERRIDE_PFC_CFG       BIT(1)
  68#define QED_DCBX_OVERRIDE_ETS_CFG       BIT(2)
  69#define QED_DCBX_OVERRIDE_APP_CFG       BIT(3)
  70#define QED_DCBX_OVERRIDE_DSCP_CFG      BIT(4)
  71        u32 override_flags;
  72        bool enabled;
  73        struct qed_dcbx_admin_params config;
  74        u32 ver_num;
  75};
  76
  77struct qed_dcbx_results {
  78        bool dcbx_enabled;
  79        u8 pf_id;
  80        struct qed_dcbx_app_data arr[DCBX_MAX_PROTOCOL_TYPE];
  81};
  82
  83struct qed_dcbx_app_metadata {
  84        enum dcbx_protocol_type id;
  85        char *name;
  86        enum qed_pci_personality personality;
  87};
  88
  89struct qed_dcbx_info {
  90        struct lldp_status_params_s lldp_remote[LLDP_MAX_LLDP_AGENTS];
  91        struct lldp_config_params_s lldp_local[LLDP_MAX_LLDP_AGENTS];
  92        struct dcbx_local_params local_admin;
  93        struct qed_dcbx_results results;
  94        struct dcbx_mib operational;
  95        struct dcbx_mib remote;
  96        struct qed_dcbx_set set;
  97        struct qed_dcbx_get get;
  98        u8 dcbx_cap;
  99};
 100
 101struct qed_dcbx_mib_meta_data {
 102        struct lldp_config_params_s *lldp_local;
 103        struct lldp_status_params_s *lldp_remote;
 104        struct dcbx_local_params *local_admin;
 105        struct dcbx_mib *mib;
 106        size_t size;
 107        u32 addr;
 108};
 109
 110#ifdef CONFIG_DCB
 111int qed_dcbx_get_config_params(struct qed_hwfn *, struct qed_dcbx_set *);
 112
 113int qed_dcbx_config_params(struct qed_hwfn *,
 114                           struct qed_ptt *, struct qed_dcbx_set *, bool);
 115#endif
 116
 117/* QED local interface routines */
 118int
 119qed_dcbx_mib_update_event(struct qed_hwfn *,
 120                          struct qed_ptt *, enum qed_mib_read_type);
 121
 122int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn);
 123void qed_dcbx_info_free(struct qed_hwfn *p_hwfn);
 124void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
 125                                   struct pf_update_ramrod_data *p_dest);
 126
 127#define QED_DCBX_DEFAULT_TC     0
 128
 129u8 qed_dcbx_get_priority_tc(struct qed_hwfn *p_hwfn, u8 pri);
 130#endif
 131