drivers/net/bnx2x/bnx2x_dcb.h

   1 /* bnx2x_dcb.h: Broadcom Everest network driver.
   2  *
   3  * Copyright 2009-2011 Broadcom Corporation
   4  *
   5  * Unless you and Broadcom execute a separate written software license
   6  * agreement governing use of this software, this software is licensed to you
   7  * under the terms of the GNU General Public License version 2, available
   8  * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
   9  *
  10  * Notwithstanding the above, under no circumstances may you combine this
  11  * software in any way with any other Broadcom software provided under a
  12  * license other than the GPL, without Broadcom's express prior written
  13  * consent.
  14  *
  15  * Maintained by: Eilon Greenstein <eilong@broadcom.com>
  16  * Written by: Dmitry Kravkov
  17  *
  18  */
  19 #ifndef BNX2X_DCB_H
  20 #define BNX2X_DCB_H
  21
  22 #include "bnx2x_hsi.h"
  23
  24 #define LLFC_DRIVER_TRAFFIC_TYPE_MAX 3 /* NW, iSCSI, FCoE */
  25 struct bnx2x_dcbx_app_params {
  26         u32 enabled;
  27         u32 traffic_type_priority[LLFC_DRIVER_TRAFFIC_TYPE_MAX];
  28 };
  29
  30 #define E2_NUM_OF_COS                   2
  31 #define BNX2X_DCBX_COS_NOT_STRICT       0
  32 #define BNX2X_DCBX_COS_LOW_STRICT       1
  33 #define BNX2X_DCBX_COS_HIGH_STRICT      2
  34
  35 struct bnx2x_dcbx_cos_params {
  36         u32     bw_tbl;
  37         u32     pri_bitmask;
  38         u8      strict;
  39         u8      pauseable;
  40 };
  41
  42 struct bnx2x_dcbx_pg_params {
  43         u32 enabled;
  44         u8 num_of_cos; /* valid COS entries */
  45         struct bnx2x_dcbx_cos_params    cos_params[E2_NUM_OF_COS];
  46 };
  47
  48 struct bnx2x_dcbx_pfc_params {
  49         u32 enabled;
  50         u32 priority_non_pauseable_mask;
  51 };
  52
  53 struct bnx2x_dcbx_port_params {
  54         struct bnx2x_dcbx_pfc_params pfc;
  55         struct bnx2x_dcbx_pg_params  ets;
  56         struct bnx2x_dcbx_app_params app;
  57 };
  58
  59 #define BNX2X_DCBX_CONFIG_INV_VALUE                     (0xFFFFFFFF)
  60 #define BNX2X_DCBX_OVERWRITE_SETTINGS_DISABLE           0
  61 #define BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE            1
  62 #define BNX2X_DCBX_OVERWRITE_SETTINGS_INVALID   (BNX2X_DCBX_CONFIG_INV_VALUE)
  63 #define BNX2X_IS_ETS_ENABLED(bp) ((bp)->dcb_state == BNX2X_DCB_STATE_ON &&\
  64                                   (bp)->dcbx_port_params.ets.enabled)
  65
  66 struct bnx2x_config_lldp_params {
  67         u32 overwrite_settings;
  68         u32 msg_tx_hold;
  69         u32 msg_fast_tx;
  70         u32 tx_credit_max;
  71         u32 msg_tx_interval;
  72         u32 tx_fast;
  73 };
  74
  75 struct bnx2x_admin_priority_app_table {
  76                 u32 valid;
  77                 u32 priority;
  78 #define INVALID_TRAFFIC_TYPE_PRIORITY   (0xFFFFFFFF)
  79                 u32 traffic_type;
  80 #define TRAFFIC_TYPE_ETH                0
  81 #define TRAFFIC_TYPE_PORT               1
  82                 u32 app_id;
  83 };
  84
  85 struct bnx2x_config_dcbx_params {
  86         u32 overwrite_settings;
  87         u32 admin_dcbx_version;
  88         u32 admin_ets_enable;
  89         u32 admin_pfc_enable;
  90         u32 admin_tc_supported_tx_enable;
  91         u32 admin_ets_configuration_tx_enable;
  92         u32 admin_ets_recommendation_tx_enable;
  93         u32 admin_pfc_tx_enable;
  94         u32 admin_application_priority_tx_enable;
  95         u32 admin_ets_willing;
  96         u32 admin_ets_reco_valid;
  97         u32 admin_pfc_willing;
  98         u32 admin_app_priority_willing;
  99         u32 admin_configuration_bw_precentage[8];
 100         u32 admin_configuration_ets_pg[8];
 101         u32 admin_recommendation_bw_precentage[8];
 102         u32 admin_recommendation_ets_pg[8];
 103         u32 admin_pfc_bitmap;
 104         struct bnx2x_admin_priority_app_table admin_priority_app_table[4];
 105         u32 admin_default_priority;
 106 };
 107
 108 #define GET_FLAGS(flags, bits)          ((flags) & (bits))
 109 #define SET_FLAGS(flags, bits)          ((flags) |= (bits))
 110 #define RESET_FLAGS(flags, bits)        ((flags) &= ~(bits))
 111
 112 enum {
 113         DCBX_READ_LOCAL_MIB,
 114         DCBX_READ_REMOTE_MIB
 115 };
 116
 117 #define ETH_TYPE_FCOE           (0x8906)
 118 #define TCP_PORT_ISCSI          (0xCBC)
 119
 120 #define PFC_VALUE_FRAME_SIZE                            (512)
 121 #define PFC_QUANTA_IN_NANOSEC_FROM_SPEED_MEGA(mega_speed)  \
 122                                 ((1000 * PFC_VALUE_FRAME_SIZE)/(mega_speed))
 123
 124 #define PFC_BRB1_REG_HIGH_LLFC_LOW_THRESHOLD                    130
 125 #define PFC_BRB1_REG_HIGH_LLFC_HIGH_THRESHOLD                   170
 126
 127
 128
 129 struct cos_entry_help_data {
 130         u32                     pri_join_mask;
 131         u32                     cos_bw;
 132         u8                      strict;
 133         bool                    pausable;
 134 };
 135
 136 struct cos_help_data {
 137         struct cos_entry_help_data      data[E2_NUM_OF_COS];
 138         u8                              num_of_cos;
 139 };
 140
 141 #define DCBX_ILLEGAL_PG                         (0xFF)
 142 #define DCBX_PFC_PRI_MASK                       (0xFF)
 143 #define DCBX_STRICT_PRIORITY                    (15)
 144 #define DCBX_INVALID_COS_BW                     (0xFFFFFFFF)
 145 #define DCBX_PFC_PRI_NON_PAUSE_MASK(bp)         \
 146                         ((bp)->dcbx_port_params.pfc.priority_non_pauseable_mask)
 147 #define DCBX_PFC_PRI_PAUSE_MASK(bp)             \
 148                                         ((u8)~DCBX_PFC_PRI_NON_PAUSE_MASK(bp))
 149 #define DCBX_PFC_PRI_GET_PAUSE(bp, pg_pri)      \
 150                                 ((pg_pri) & (DCBX_PFC_PRI_PAUSE_MASK(bp)))
 151 #define DCBX_PFC_PRI_GET_NON_PAUSE(bp, pg_pri)  \
 152                         (DCBX_PFC_PRI_NON_PAUSE_MASK(bp) & (pg_pri))
 153 #define IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pg_pri)  \
 154                         (pg_pri == DCBX_PFC_PRI_GET_PAUSE((bp), (pg_pri)))
 155 #define IS_DCBX_PFC_PRI_ONLY_NON_PAUSE(bp, pg_pri)\
 156                         ((pg_pri) == DCBX_PFC_PRI_GET_NON_PAUSE((bp), (pg_pri)))
 157 #define IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pg_pri)   \
 158                         (!(IS_DCBX_PFC_PRI_ONLY_NON_PAUSE((bp), (pg_pri)) || \
 159                          IS_DCBX_PFC_PRI_ONLY_PAUSE((bp), (pg_pri))))
 160
 161
 162 struct pg_entry_help_data {
 163         u8      num_of_dif_pri;
 164         u8      pg;
 165         u32     pg_priority;
 166 };
 167
 168 struct pg_help_data {
 169         struct pg_entry_help_data       data[LLFC_DRIVER_TRAFFIC_TYPE_MAX];
 170         u8                              num_of_pg;
 171 };
 172
 173 /* forward DCB/PFC related declarations */
 174 struct bnx2x;
 175 void bnx2x_dcb_init_intmem_pfc(struct bnx2x *bp);
 176 void bnx2x_dcbx_update(struct work_struct *work);
 177 void bnx2x_dcbx_init_params(struct bnx2x *bp);
 178 void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled);
 179
 180 enum {
 181         BNX2X_DCBX_STATE_NEG_RECEIVED = 0x1,
 182         BNX2X_DCBX_STATE_TX_PAUSED,
 183         BNX2X_DCBX_STATE_TX_RELEASED
 184 };
 185
 186 void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state);
 187
 188 /* DCB netlink */
 189 #ifdef BCM_DCBNL
 190 extern const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops;
 191 int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall);
 192 #endif /* BCM_DCBNL */
 193
 194 #endif /* BNX2X_DCB_H */