185 lines
6.0 KiB
C
185 lines
6.0 KiB
C
/* Copyright 2008-2009 Broadcom Corporation
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*
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* Unless you and Broadcom execute a separate written software license
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* agreement governing use of this software, this software is licensed to you
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* under the terms of the GNU General Public License version 2, available
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* at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
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*
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* Notwithstanding the above, under no circumstances may you combine this
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* software in any way with any other Broadcom software provided under a
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* license other than the GPL, without Broadcom's express prior written
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* consent.
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*
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* Written by Yaniv Rosner
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*
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*/
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#ifndef BNX2X_LINK_H
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#define BNX2X_LINK_H
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/***********************************************************/
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/* Defines */
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/***********************************************************/
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#define DEFAULT_PHY_DEV_ADDR 3
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#define BNX2X_FLOW_CTRL_AUTO PORT_FEATURE_FLOW_CONTROL_AUTO
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#define BNX2X_FLOW_CTRL_TX PORT_FEATURE_FLOW_CONTROL_TX
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#define BNX2X_FLOW_CTRL_RX PORT_FEATURE_FLOW_CONTROL_RX
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#define BNX2X_FLOW_CTRL_BOTH PORT_FEATURE_FLOW_CONTROL_BOTH
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#define BNX2X_FLOW_CTRL_NONE PORT_FEATURE_FLOW_CONTROL_NONE
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#define SPEED_AUTO_NEG 0
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#define SPEED_12000 12000
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#define SPEED_12500 12500
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#define SPEED_13000 13000
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#define SPEED_15000 15000
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#define SPEED_16000 16000
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/***********************************************************/
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/* Structs */
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/***********************************************************/
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/* Inputs parameters to the CLC */
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struct link_params {
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u8 port;
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/* Default / User Configuration */
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u8 loopback_mode;
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#define LOOPBACK_NONE 0
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#define LOOPBACK_EMAC 1
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#define LOOPBACK_BMAC 2
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#define LOOPBACK_XGXS_10 3
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#define LOOPBACK_EXT_PHY 4
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#define LOOPBACK_EXT 5
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u16 req_duplex;
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u16 req_flow_ctrl;
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u16 req_fc_auto_adv; /* Should be set to TX / BOTH when
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req_flow_ctrl is set to AUTO */
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u16 req_line_speed; /* Also determine AutoNeg */
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/* Device parameters */
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u8 mac_addr[6];
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/* shmem parameters */
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u32 shmem_base;
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u32 speed_cap_mask;
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u32 switch_cfg;
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#define SWITCH_CFG_1G PORT_FEATURE_CON_SWITCH_1G_SWITCH
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#define SWITCH_CFG_10G PORT_FEATURE_CON_SWITCH_10G_SWITCH
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#define SWITCH_CFG_AUTO_DETECT PORT_FEATURE_CON_SWITCH_AUTO_DETECT
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u16 hw_led_mode; /* part of the hw_config read from the shmem */
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u32 lane_config;
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u32 ext_phy_config;
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#define XGXS_EXT_PHY_TYPE(ext_phy_config) (ext_phy_config & \
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PORT_HW_CFG_XGXS_EXT_PHY_TYPE_MASK)
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#define SERDES_EXT_PHY_TYPE(ext_phy_config) (ext_phy_config & \
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PORT_HW_CFG_SERDES_EXT_PHY_TYPE_MASK)
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/* Phy register parameter */
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u32 chip_id;
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/* phy_addr populated by the CLC */
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u8 phy_addr;
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u16 xgxs_config_rx[4]; /* preemphasis values for the rx side */
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u16 xgxs_config_tx[4]; /* preemphasis values for the tx side */
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u32 feature_config_flags;
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#define FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED (1<<0)
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#define FEATURE_CONFIG_MODULE_ENFORCMENT_ENABLED (2<<0)
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/* Device pointer passed to all callback functions */
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struct bnx2x *bp;
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};
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/* Output parameters */
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struct link_vars {
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u8 phy_link_up; /* internal phy link indication */
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u8 link_up;
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u16 duplex;
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u16 flow_ctrl;
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u32 ieee_fc;
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u8 mac_type;
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#define MAC_TYPE_NONE 0
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#define MAC_TYPE_EMAC 1
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#define MAC_TYPE_BMAC 2
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u16 line_speed;
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u32 autoneg;
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#define AUTO_NEG_DISABLED 0x0
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#define AUTO_NEG_ENABLED 0x1
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#define AUTO_NEG_COMPLETE 0x2
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#define AUTO_NEG_PARALLEL_DETECTION_USED 0x3
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u8 phy_flags;
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/* The same definitions as the shmem parameter */
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u32 link_status;
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};
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/***********************************************************/
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/* Functions */
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/***********************************************************/
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/* Initialize the phy */
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u8 bnx2x_phy_init(struct link_params *input, struct link_vars *output);
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/* Reset the link. Should be called when driver or interface goes down
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Before calling phy firmware upgrade, the reset_ext_phy should be set
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to 0 */
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u8 bnx2x_link_reset(struct link_params *params, struct link_vars *vars,
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u8 reset_ext_phy);
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/* bnx2x_link_update should be called upon link interrupt */
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u8 bnx2x_link_update(struct link_params *input, struct link_vars *output);
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/* use the following cl45 functions to read/write from external_phy
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In order to use it to read/write internal phy registers, use
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DEFAULT_PHY_DEV_ADDR as devad, and (_bank + (_addr & 0xf)) as
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Use ext_phy_type of 0 in case of cl22 over cl45
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the register */
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u8 bnx2x_cl45_read(struct bnx2x *bp, u8 port, u32 ext_phy_type,
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u8 phy_addr, u8 devad, u16 reg, u16 *ret_val);
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u8 bnx2x_cl45_write(struct bnx2x *bp, u8 port, u32 ext_phy_type,
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u8 phy_addr, u8 devad, u16 reg, u16 val);
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/* Reads the link_status from the shmem,
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and update the link vars accordingly */
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void bnx2x_link_status_update(struct link_params *input,
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struct link_vars *output);
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/* returns string representing the fw_version of the external phy */
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u8 bnx2x_get_ext_phy_fw_version(struct link_params *params, u8 driver_loaded,
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u8 *version, u16 len);
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/* Set/Unset the led
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Basically, the CLC takes care of the led for the link, but in case one needs
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to set/unset the led unnaturally, set the "mode" to LED_MODE_OPER to
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blink the led, and LED_MODE_OFF to set the led off.*/
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u8 bnx2x_set_led(struct bnx2x *bp, u8 port, u8 mode, u32 speed,
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u16 hw_led_mode, u32 chip_id);
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#define LED_MODE_OFF 0
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#define LED_MODE_OPER 2
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u8 bnx2x_override_led_value(struct bnx2x *bp, u8 port, u32 led_idx, u32 value);
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u8 bnx2x_flash_download(struct bnx2x *bp, u8 port, u32 ext_phy_config,
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u8 driver_loaded, char data[], u32 size);
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/* bnx2x_handle_module_detect_int should be called upon module detection
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interrupt */
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void bnx2x_handle_module_detect_int(struct link_params *params);
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/* Get the actual link status. In case it returns 0, link is up,
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otherwise link is down*/
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u8 bnx2x_test_link(struct link_params *input, struct link_vars *vars);
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/* One-time initialization for external phy after power up */
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u8 bnx2x_common_init_phy(struct bnx2x *bp, u32 shmem_base);
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#endif /* BNX2X_LINK_H */
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