/* Copyright 2008 Broadcom Corporation
*
* Unless you and Broadcom execute a separate written software license
* agreement governing use of this software, this software is licensed to you
* under the terms of the GNU General Public License version 2, available
* at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
*
* Notwithstanding the above, under no circumstances may you combine this
* software in any way with any other Broadcom software provided under a
* license other than the GPL, without Broadcom's express prior written
* consent.
*
* Written by Yaniv Rosner
*
*/
#ifndef BNX2X_LINK_H
#define BNX2X_LINK_H
/***********************************************************/
/* Defines */
/***********************************************************/
#define DEFAULT_PHY_DEV_ADDR 3
#define BNX2X_FLOW_CTRL_AUTO PORT_FEATURE_FLOW_CONTROL_AUTO
#define BNX2X_FLOW_CTRL_TX PORT_FEATURE_FLOW_CONTROL_TX
#define BNX2X_FLOW_CTRL_RX PORT_FEATURE_FLOW_CONTROL_RX
#define BNX2X_FLOW_CTRL_BOTH PORT_FEATURE_FLOW_CONTROL_BOTH
#define BNX2X_FLOW_CTRL_NONE PORT_FEATURE_FLOW_CONTROL_NONE
#define SPEED_AUTO_NEG 0
#define SPEED_12000 12000
#define SPEED_12500 12500
#define SPEED_13000 13000
#define SPEED_15000 15000
#define SPEED_16000 16000
/***********************************************************/
/* Structs */
/***********************************************************/
/* Inputs parameters to the CLC */
struct link_params {
u8 port;
/* Default / User Configuration */
u8 loopback_mode;
#define LOOPBACK_NONE 0
#define LOOPBACK_EMAC 1
#define LOOPBACK_BMAC 2
#define LOOPBACK_XGXS_10 3
#define LOOPBACK_EXT_PHY 4
#define LOOPBACK_EXT 5
u16 req_duplex;
u16 req_flow_ctrl;
u16 req_fc_auto_adv; /* Should be set to TX / BOTH when
req_flow_ctrl is set to AUTO */
u16 req_line_speed; /* Also determine AutoNeg */
/* Device parameters */
u8 mac_addr[6];
/* shmem parameters */
u32 shmem_base;
u32 speed_cap_mask;
u32 switch_cfg;
#define SWITCH_CFG_1G PORT_FEATURE_CON_SWITCH_1G_SWITCH
#define SWITCH_CFG_10G PORT_FEATURE_CON_SWITCH_10G_SWITCH
#define SWITCH_CFG_AUTO_DETECT PORT_FEATURE_CON_SWITCH_AUTO_DETECT
u16 hw_led_mode; /* part of the hw_config read from the shmem */
u32 lane_config;
u32 ext_phy_config;
#define XGXS_EXT_PHY_TYPE(ext_phy_config) (ext_phy_config & \
PORT_HW_CFG_XGXS_EXT_PHY_TYPE_MASK)
#define SERDES_EXT_PHY_TYPE(ext_phy_config) (ext_phy_config & \
PORT_HW_CFG_SERDES_EXT_PHY_TYPE_MASK)
/* Phy register parameter */
u32 chip_id;
/* phy_addr populated by the CLC */
u8 phy_addr;
u16 xgxs_config_rx[4]; /* preemphasis values for the rx side */
u16 xgxs_config_tx[4]; /* preemphasis values for the tx side */
u32 feature_config_flags;
#define FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED (1<<0)
#define FEATURE_CONFIG_MODULE_ENFORCMENT_ENABLED (2<<0)
/* Device pointer passed to all callback functions */
struct bnx2x *bp;
};
/* Output parameters */
struct link_vars {
u8 phy_link_up; /* internal phy link indication */
u8 link_up;
u16 duplex;
u16 flow_ctrl;
u32 ieee_fc;
u8 mac_type;
#define MAC_TYPE_NONE 0
#define MAC_TYPE_EMAC 1
#define MAC_TYPE_BMAC 2
u16 line_speed;
u32 autoneg;
#define AUTO_NEG_DISABLED 0x0
#define AUTO_NEG_ENABLED 0x1
#define AUTO_NEG_COMPLETE 0x2
#define AUTO_NEG_PARALLEL_DETECTION_USED 0x3
u8 phy_flags;
/* The same definitions as the shmem parameter */
u32 link_status;
};
/***********************************************************/
/* Functions */
/***********************************************************/
/* Initialize the phy */
u8 bnx2x_phy_init(struct link_params *input, struct link_vars *output);
/* Reset the link. Should be called when driver or interface goes down
Before calling phy firmware upgrade, the reset_ext_phy should be set
to 0 */
u8 bnx2x_link_reset(struct link_params *params, struct link_vars *vars,
u8 reset_ext_phy);
/* bnx2x_link_update should be called upon link interrupt */
u8 bnx2x_link_update(struct link_params *input, struct link_vars *output);
/* use the following cl45 functions to read/write from external_phy
In order to use it to read/write internal phy registers, use
DEFAULT_PHY_DEV_ADDR as devad, and (_bank + (_addr & 0xf)) as
Use ext_phy_type of 0 in case of cl22 over cl45
the register */
u8 bnx2x_cl45_read(struct bnx2x *bp, u8 port, u32 ext_phy_type,
u8 phy_addr, u8 devad, u16 reg, u16 *ret_val);
u8 bnx2x_cl45_write(struct bnx2x *bp, u8 port, u32 ext_phy_type,
u8 phy_addr, u8 devad, u16 reg, u16 val);
/* Reads the link_status from the shmem,
and update the link vars accordingly */
void bnx2x_link_status_update(struct link_params *input,
struct link_vars *output);
/* returns string representing the fw_version of the external phy */
u8 bnx2x_get_ext_phy_fw_version(struct link_params *params, u8 driver_loaded,
u8 *version, u16 len);
/* Set/Unset the led
Basically, the CLC takes care of the led for the link, but in case one needs
to set/unset the led unnaturally, set the "mode" to LED_MODE_OPER to
blink the led, and LED_MODE_OFF to set the led off.*/
u8 bnx2x_set_led(struct bnx2x *bp, u8 port, u8 mode, u32 speed,
u16 hw_led_mode, u32 chip_id);
#define LED_MODE_OFF 0
#define LED_MODE_OPER 2
u8 bnx2x_override_led_value(struct bnx2x *bp, u8 port, u32 led_idx, u32 value);
u8 bnx2x_flash_download(struct bnx2x *bp, u8 port, u32 ext_phy_config,
u8 driver_loaded, char data[], u32 size);
/* bnx2x_handle_module_detect_int should be called upon module detection
interrupt */
void bnx2x_handle_module_detect_int(struct link_params *params);
/* Get the actual link status. In case it returns 0, link is up,
otherwise link is down*/
u8 bnx2x_test_link(struct link_params *input, struct link_vars *vars);
/* One-time initialization for external phy after power up */
u8 bnx2x_common_init_phy(struct bnx2x *bp, u32 shmem_base);
#endif /* BNX2X_LINK_H */
