drivers/net/bnx2x_link.h

   1 /* Copyright 2008 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 FLOW_CTRL_AUTO          PORT_FEATURE_FLOW_CONTROL_AUTO
  30 #define FLOW_CTRL_TX            PORT_FEATURE_FLOW_CONTROL_TX
  31 #define FLOW_CTRL_RX            PORT_FEATURE_FLOW_CONTROL_RX
  32 #define FLOW_CTRL_BOTH          PORT_FEATURE_FLOW_CONTROL_BOTH
  33 #define 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
  43 /***********************************************************/
  44 /*                         Structs                         */
  45 /***********************************************************/
  46 /* Inputs parameters to the CLC */
  47 struct link_params {
  48
  49         u8 port;
  50
  51         /* Default / User Configuration */
  52         u8 loopback_mode;
  53 #define LOOPBACK_NONE   0
  54 #define LOOPBACK_EMAC   1
  55 #define LOOPBACK_BMAC   2
  56 #define LOOPBACK_XGXS_10        3
  57 #define LOOPBACK_EXT_PHY        4
  58 #define LOOPBACK_EXT    5
  59
  60         u16 req_duplex;
  61         u16 req_flow_ctrl;
  62         u16 req_fc_auto_adv; /* Should be set to TX / BOTH when
  63         req_flow_ctrl is set to AUTO */
  64         u16 req_line_speed; /* Also determine AutoNeg */
  65
  66         /* Device parameters */
  67         u8 mac_addr[6];
  68
  69
  70
  71         /* shmem parameters */
  72         u32 shmem_base;
  73         u32 speed_cap_mask;
  74         u32 switch_cfg;
  75 #define SWITCH_CFG_1G           PORT_FEATURE_CON_SWITCH_1G_SWITCH
  76 #define SWITCH_CFG_10G          PORT_FEATURE_CON_SWITCH_10G_SWITCH
  77 #define SWITCH_CFG_AUTO_DETECT  PORT_FEATURE_CON_SWITCH_AUTO_DETECT
  78
  79         u16 hw_led_mode; /* part of the hw_config read from the shmem */
  80         u32 serdes_config;
  81         u32 lane_config;
  82         u32 ext_phy_config;
  83 #define XGXS_EXT_PHY_TYPE(ext_phy_config)       (ext_phy_config & \
  84                                         PORT_HW_CFG_XGXS_EXT_PHY_TYPE_MASK)
  85 #define SERDES_EXT_PHY_TYPE(ext_phy_config)     (ext_phy_config & \
  86                                         PORT_HW_CFG_SERDES_EXT_PHY_TYPE_MASK)
  87         /* Phy register parameter */
  88         u32 chip_id;
  89
  90         /* phy_addr populated by the CLC */
  91         u8 phy_addr;
  92         /* Device pointer passed to all callback functions */
  93         struct bnx2x *bp;
  94 };
  95
  96 /* Output parameters */
  97 struct link_vars {
  98         u8 phy_link_up; /* internal phy link indication */
  99         u8 link_up;
 100         u16 duplex;
 101         u16 flow_ctrl;
 102         u32 ieee_fc;
 103         u8 mac_type;
 104
 105 #define MAC_TYPE_NONE   0
 106 #define MAC_TYPE_EMAC   1
 107 #define MAC_TYPE_BMAC   2
 108         u16 line_speed;
 109         u32 autoneg;
 110 #define AUTO_NEG_DISABLED                       0x0
 111 #define AUTO_NEG_ENABLED                        0x1
 112 #define AUTO_NEG_COMPLETE                       0x2
 113 #define AUTO_NEG_PARALLEL_DETECTION_USED        0x3
 114
 115         u8 phy_flags;
 116
 117         /* The same definitions as the shmem parameter */
 118         u32 link_status;
 119 };
 120
 121 /***********************************************************/
 122 /*                         Functions                       */
 123 /***********************************************************/
 124
 125 /* Initialize the phy */
 126 u8 bnx2x_phy_init(struct link_params *input, struct link_vars *output);
 127
 128 /* Reset the link. Should be called when driver or interface goes down */
 129 u8 bnx2x_link_reset(struct link_params *params, struct link_vars *vars);
 130
 131 /* bnx2x_link_update should be called upon link interrupt */
 132 u8 bnx2x_link_update(struct link_params *input, struct link_vars *output);
 133
 134 /* use the following cl45 functions to read/write from external_phy
 135   In order to use it to read/write internal phy registers, use
 136   DEFAULT_PHY_DEV_ADDR as devad, and (_bank + (_addr & 0xf)) as
 137   Use ext_phy_type of 0 in case of cl22 over cl45
 138   the register */
 139 u8 bnx2x_cl45_read(struct bnx2x *bp, u8 port, u32 ext_phy_type,
 140                  u8 phy_addr, u8 devad, u16 reg, u16 *ret_val);
 141
 142 u8 bnx2x_cl45_write(struct bnx2x *bp, u8 port, u32 ext_phy_type,
 143                   u8 phy_addr, u8 devad, u16 reg, u16 val);
 144
 145 /* Reads the link_status from the shmem,
 146    and update the link vars accordingly */
 147 void bnx2x_link_status_update(struct link_params *input,
 148                             struct link_vars *output);
 149 /* returns string representing the fw_version of the external phy */
 150 u8 bnx2x_get_ext_phy_fw_version(struct link_params *params, u8 driver_loaded,
 151                               u8 *version, u16 len);
 152
 153 /* Set/Unset the led
 154    Basically, the CLC takes care of the led for the link, but in case one needs
 155    to set/unset the led unnaturally, set the "mode" to LED_MODE_OPER to
 156    blink the led, and LED_MODE_OFF to set the led off.*/
 157 u8 bnx2x_set_led(struct bnx2x *bp, u8 port, u8 mode, u32 speed,
 158                u16 hw_led_mode, u32 chip_id);
 159 #define LED_MODE_OFF    0
 160 #define LED_MODE_OPER   2
 161
 162 u8 bnx2x_override_led_value(struct bnx2x *bp, u8 port, u32 led_idx, u32 value);
 163
 164 u8 bnx2x_flash_download(struct bnx2x *bp, u8 port, u32 ext_phy_config,
 165                       u8 driver_loaded, char data[], u32 size);
 166 /* Get the actual link status. In case it returns 0, link is up,
 167         otherwise link is down*/
 168 u8 bnx2x_test_link(struct link_params *input, struct link_vars *vars);
 169
 170 /* One-time initialization for external phy after power up */
 171 u8 bnx2x_common_init_phy(struct bnx2x *bp, u32 shmem_base);
 172
 173 #endif /* BNX2X_LINK_H */