drivers/net/bnx2x_link.h

   1 /* Copyright 2008-2009 Broadcom Corporation
   2  *
   3  * Unless you and Broadcom execute a separate written software license
   4  * agreement governing use of this software, this software is licensed to you
   5  * under the terms of the GNU General Public License version 2, available
   6  * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
   7  *
   8  * Notwithstanding the above, under no circumstances may you combine this
   9  * software in any way with any other Broadcom software provided under a
  10  * license other than the GPL, without Broadcom's express prior written
  11  * consent.
  12  *
  13  * Written by Yaniv Rosner
  14  *
  15  */
  16
  17 #ifndef BNX2X_LINK_H
  18 #define BNX2X_LINK_H
  19
  20
  21
  22 /***********************************************************/
  23 /*                         Defines                         */
  24 /***********************************************************/
  25 #define DEFAULT_PHY_DEV_ADDR 3
  26
  27
  28
  29 #define BNX2X_FLOW_CTRL_AUTO            PORT_FEATURE_FLOW_CONTROL_AUTO
  30 #define BNX2X_FLOW_CTRL_TX              PORT_FEATURE_FLOW_CONTROL_TX
  31 #define BNX2X_FLOW_CTRL_RX              PORT_FEATURE_FLOW_CONTROL_RX
  32 #define BNX2X_FLOW_CTRL_BOTH            PORT_FEATURE_FLOW_CONTROL_BOTH
  33 #define BNX2X_FLOW_CTRL_NONE            PORT_FEATURE_FLOW_CONTROL_NONE
  34
  35 #define SPEED_AUTO_NEG      0
  36 #define SPEED_12000             12000
  37 #define SPEED_12500             12500
  38 #define SPEED_13000             13000
  39 #define SPEED_15000             15000
  40 #define SPEED_16000             16000
  41
  42 #define SFP_EEPROM_VENDOR_NAME_ADDR             0x14
  43 #define SFP_EEPROM_VENDOR_NAME_SIZE             16
  44 #define SFP_EEPROM_VENDOR_OUI_ADDR              0x25
  45 #define SFP_EEPROM_VENDOR_OUI_SIZE              3
  46 #define SFP_EEPROM_PART_NO_ADDR                 0x28
  47 #define SFP_EEPROM_PART_NO_SIZE         16
  48 #define PWR_FLT_ERR_MSG_LEN                     250
  49 /***********************************************************/
  50 /*                         Structs                         */
  51 /***********************************************************/
  52 /* Inputs parameters to the CLC */
  53 struct link_params {
  54
  55         u8 port;
  56
  57         /* Default / User Configuration */
  58         u8 loopback_mode;
  59 #define LOOPBACK_NONE   0
  60 #define LOOPBACK_EMAC   1
  61 #define LOOPBACK_BMAC   2
  62 #define LOOPBACK_XGXS_10        3
  63 #define LOOPBACK_EXT_PHY        4
  64 #define LOOPBACK_EXT    5
  65
  66         u16 req_duplex;
  67         u16 req_flow_ctrl;
  68         u16 req_fc_auto_adv; /* Should be set to TX / BOTH when
  69         req_flow_ctrl is set to AUTO */
  70         u16 req_line_speed; /* Also determine AutoNeg */
  71
  72         /* Device parameters */
  73         u8 mac_addr[6];
  74
  75         /* shmem parameters */
  76         u32 shmem_base;
  77         u32 speed_cap_mask;
  78         u32 switch_cfg;
  79 #define SWITCH_CFG_1G           PORT_FEATURE_CON_SWITCH_1G_SWITCH
  80 #define SWITCH_CFG_10G          PORT_FEATURE_CON_SWITCH_10G_SWITCH
  81 #define SWITCH_CFG_AUTO_DETECT  PORT_FEATURE_CON_SWITCH_AUTO_DETECT
  82
  83         u16 hw_led_mode; /* part of the hw_config read from the shmem */
  84         u32 lane_config;
  85         u32 ext_phy_config;
  86 #define XGXS_EXT_PHY_TYPE(ext_phy_config)       (ext_phy_config & \
  87                                         PORT_HW_CFG_XGXS_EXT_PHY_TYPE_MASK)
  88 #define SERDES_EXT_PHY_TYPE(ext_phy_config)     (ext_phy_config & \
  89                                         PORT_HW_CFG_SERDES_EXT_PHY_TYPE_MASK)
  90         /* Phy register parameter */
  91         u32 chip_id;
  92
  93         /* phy_addr populated by the CLC */
  94         u8 phy_addr;
  95         u16 xgxs_config_rx[4]; /* preemphasis values for the rx side */
  96
  97         u16 xgxs_config_tx[4]; /* preemphasis values for the tx side */
  98         u32 feature_config_flags;
  99 #define FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED (1<<0)
 100 #define FEATURE_CONFIG_BC_SUPPORTS_OPT_MDL_VRFY (1<<2)
 101 #define FEATURE_CONFIG_BCM8727_NOC                      (1<<3)
 102         /* Device pointer passed to all callback functions */
 103         struct bnx2x *bp;
 104 };
 105
 106 /* Output parameters */
 107 struct link_vars {
 108         u8 phy_link_up; /* internal phy link indication */
 109         u8 link_up;
 110         u16 duplex;
 111         u16 flow_ctrl;
 112         u32 ieee_fc;
 113         u8 mac_type;
 114
 115 #define MAC_TYPE_NONE   0
 116 #define MAC_TYPE_EMAC   1
 117 #define MAC_TYPE_BMAC   2
 118         u16 line_speed;
 119         u32 autoneg;
 120 #define AUTO_NEG_DISABLED                       0x0
 121 #define AUTO_NEG_ENABLED                        0x1
 122 #define AUTO_NEG_COMPLETE                       0x2
 123 #define AUTO_NEG_PARALLEL_DETECTION_USED        0x3
 124
 125         u8 phy_flags;
 126
 127         /* The same definitions as the shmem parameter */
 128         u32 link_status;
 129 };
 130
 131 /***********************************************************/
 132 /*                         Functions                       */
 133 /***********************************************************/
 134
 135 /* Initialize the phy */
 136 u8 bnx2x_phy_init(struct link_params *input, struct link_vars *output);
 137
 138 /* Reset the link. Should be called when driver or interface goes down
 139    Before calling phy firmware upgrade, the reset_ext_phy should be set
 140    to 0 */
 141 u8 bnx2x_link_reset(struct link_params *params, struct link_vars *vars,
 142                   u8 reset_ext_phy);
 143
 144 /* bnx2x_link_update should be called upon link interrupt */
 145 u8 bnx2x_link_update(struct link_params *input, struct link_vars *output);
 146
 147 /* use the following cl45 functions to read/write from external_phy
 148   In order to use it to read/write internal phy registers, use
 149   DEFAULT_PHY_DEV_ADDR as devad, and (_bank + (_addr & 0xf)) as
 150   Use ext_phy_type of 0 in case of cl22 over cl45
 151   the register */
 152 u8 bnx2x_cl45_read(struct bnx2x *bp, u8 port, u32 ext_phy_type,
 153                  u8 phy_addr, u8 devad, u16 reg, u16 *ret_val);
 154
 155 u8 bnx2x_cl45_write(struct bnx2x *bp, u8 port, u32 ext_phy_type,
 156                   u8 phy_addr, u8 devad, u16 reg, u16 val);
 157
 158 /* Reads the link_status from the shmem,
 159    and update the link vars accordingly */
 160 void bnx2x_link_status_update(struct link_params *input,
 161                             struct link_vars *output);
 162 /* returns string representing the fw_version of the external phy */
 163 u8 bnx2x_get_ext_phy_fw_version(struct link_params *params, u8 driver_loaded,
 164                               u8 *version, u16 len);
 165
 166 /* Set/Unset the led
 167    Basically, the CLC takes care of the led for the link, but in case one needs
 168    to set/unset the led unnaturally, set the "mode" to LED_MODE_OPER to
 169    blink the led, and LED_MODE_OFF to set the led off.*/
 170 u8 bnx2x_set_led(struct bnx2x *bp, u8 port, u8 mode, u32 speed,
 171                u16 hw_led_mode, u32 chip_id);
 172 #define LED_MODE_OFF    0
 173 #define LED_MODE_OPER   2
 174
 175 u8 bnx2x_override_led_value(struct bnx2x *bp, u8 port, u32 led_idx, u32 value);
 176
 177 u8 bnx2x_flash_download(struct bnx2x *bp, u8 port, u32 ext_phy_config,
 178                       u8 driver_loaded, char data[], u32 size);
 179 /* bnx2x_handle_module_detect_int should be called upon module detection
 180    interrupt */
 181 void bnx2x_handle_module_detect_int(struct link_params *params);
 182
 183 /* Get the actual link status. In case it returns 0, link is up,
 184         otherwise link is down*/
 185 u8 bnx2x_test_link(struct link_params *input, struct link_vars *vars);
 186
 187 /* One-time initialization for external phy after power up */
 188 u8 bnx2x_common_init_phy(struct bnx2x *bp, u32 shmem_base);
 189
 190
 191 u8 bnx2x_read_sfp_module_eeprom(struct link_params *params, u16 addr,
 192                               u8 byte_cnt, u8 *o_buf);
 193
 194 #endif /* BNX2X_LINK_H */