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gerrit-public.fairphone.software / fp2-dev / kernel / msm / ea4e040abc72f2dbbfdd8d04e271a18593ba72c7 / . / drivers / net / bnx2x_link.h
blob: 714d37ac95ded41591eb3b7cc129d7e1967eb4d3 [file] [log] [blame]
Yaniv Rosnerea4e0402008-06-23 20:27:26 -0700[diff] [blame^]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 */
47struct 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
59 u16 req_duplex;
60 u16 req_flow_ctrl;
61 u16 req_line_speed; /* Also determine AutoNeg */
62
63 /* Device parameters */
64 u8 mac_addr[6];
65 u16 mtu;
66
67
68 /* shmem parameters */
69 u32 shmem_base;
70 u32 speed_cap_mask;
71 u32 switch_cfg;
72#define SWITCH_CFG_1G PORT_FEATURE_CON_SWITCH_1G_SWITCH
73#define SWITCH_CFG_10G PORT_FEATURE_CON_SWITCH_10G_SWITCH
74#define SWITCH_CFG_AUTO_DETECT PORT_FEATURE_CON_SWITCH_AUTO_DETECT
75
76 u16 hw_led_mode; /* part of the hw_config read from the shmem */
77 u32 serdes_config;
78 u32 lane_config;
79 u32 ext_phy_config;
80#define XGXS_EXT_PHY_TYPE(ext_phy_config) (ext_phy_config & \
81 PORT_HW_CFG_XGXS_EXT_PHY_TYPE_MASK)
82#define SERDES_EXT_PHY_TYPE(ext_phy_config) (ext_phy_config & \
83 PORT_HW_CFG_SERDES_EXT_PHY_TYPE_MASK)
84 /* Phy register parameter */
85 u32 chip_id;
86
87 /* phy_addr populated by the CLC */
88 u8 phy_addr;
89 /* Device pointer passed to all callback functions */
90 struct bnx2x *bp;
91};
92
93/* Output parameters */
94struct link_vars {
95 u8 phy_link_up; /* internal phy link indication */
96 u8 link_up;
97 u16 duplex;
98 u16 flow_ctrl;
99 u32 ieee_fc;
100 u8 mac_type;
101
102#define MAC_TYPE_NONE 0
103#define MAC_TYPE_EMAC 1
104#define MAC_TYPE_BMAC 2
105 u16 line_speed;
106 u32 autoneg;
107#define AUTO_NEG_DISABLED 0x0
108#define AUTO_NEG_ENABLED 0x1
109#define AUTO_NEG_COMPLETE 0x2
110#define AUTO_NEG_PARALLEL_DETECTION_USED 0x3
111
112 u8 phy_flags;
113
114 /* The same definitions as the shmem parameter */
115 u32 link_status;
116};
117
118/***********************************************************/
119/* Functions */
120/***********************************************************/
121
122/* Initialize the phy */
123u8 bnx2x_phy_init(struct link_params *input, struct link_vars *output);
124
125/* Reset the link. Should be called when driver or interface goes down */
126u8 bnx2x_link_reset(struct link_params *params, struct link_vars *vars);
127
128/* bnx2x_link_update should be called upon link interrupt */
129u8 bnx2x_link_update(struct link_params *input, struct link_vars *output);
130
131/* use the following cl45 functions to read/write from external_phy
132 In order to use it to read/write internal phy registers, use
133 DEFAULT_PHY_DEV_ADDR as devad, and (_bank + (_addr & 0xf)) as
134 Use ext_phy_type of 0 in case of cl22 over cl45
135 the register */
136u8 bnx2x_cl45_read(struct bnx2x *bp, u8 port, u32 ext_phy_type,
137 u8 phy_addr, u8 devad, u16 reg, u16 *ret_val);
138
139u8 bnx2x_cl45_write(struct bnx2x *bp, u8 port, u32 ext_phy_type,
140 u8 phy_addr, u8 devad, u16 reg, u16 val);
141
142/* Reads the link_status from the shmem,
143 and update the link vars accordinaly */
144void bnx2x_link_status_update(struct link_params *input,
145 struct link_vars *output);
146/* returns string representing the fw_version of the external phy */
147u8 bnx2x_get_ext_phy_fw_version(struct link_params *params, u8 driver_loaded,
148 u8 *version, u16 len);
149
150/* Set/Unset the led
151 Basically, the CLC takes care of the led for the link, but in case one needs
152 to set/unset the led unnatually, set the "mode" to LED_MODE_OPER to
153 blink the led, and LED_MODE_OFF to set the led off.*/
154u8 bnx2x_set_led(struct bnx2x *bp, u8 port, u8 mode, u32 speed,
155 u16 hw_led_mode, u32 chip_id);
156#define LED_MODE_OFF 0
157#define LED_MODE_OPER 2
158
159u8 bnx2x_override_led_value(struct bnx2x *bp, u8 port, u32 led_idx, u32 value);
160
161u8 bnx2x_flash_download(struct bnx2x *bp, u8 port, u32 ext_phy_config,
162 u8 driver_loaded, char data[], u32 size);
163/* Get the actual link status. In case it returns 0, link is up,
164 otherwise link is down*/
165u8 bnx2x_test_link(struct link_params *input, struct link_vars *vars);
166
167
168#endif /* BNX2X_LINK_H */