]> bbs.cooldavid.org Git - net-next-2.6.git/blame - drivers/net/bnx2x/bnx2x_link.h
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
[net-next-2.6.git] / drivers / net / bnx2x / bnx2x_link.h
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e10bc84d 1/* Copyright 2008-2010 Broadcom Corporation
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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
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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
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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
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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
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49
50#define XGXS_EXT_PHY_TYPE(ext_phy_config) \
51 ((ext_phy_config) & PORT_HW_CFG_XGXS_EXT_PHY_TYPE_MASK)
52#define XGXS_EXT_PHY_ADDR(ext_phy_config) \
53 (((ext_phy_config) & PORT_HW_CFG_XGXS_EXT_PHY_ADDR_MASK) >> \
54 PORT_HW_CFG_XGXS_EXT_PHY_ADDR_SHIFT)
55#define SERDES_EXT_PHY_TYPE(ext_phy_config) \
56 ((ext_phy_config) & PORT_HW_CFG_SERDES_EXT_PHY_TYPE_MASK)
57
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58/* Single Media Direct board is the plain 577xx board with CX4/RJ45 jacks */
59#define SINGLE_MEDIA_DIRECT(params) (params->num_phys == 1)
60/* Single Media board contains single external phy */
61#define SINGLE_MEDIA(params) (params->num_phys == 2)
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62/* Dual Media board contains two external phy with different media */
63#define DUAL_MEDIA(params) (params->num_phys == 3)
64#define FW_PARAM_MDIO_CTRL_OFFSET 16
65#define FW_PARAM_SET(phy_addr, phy_type, mdio_access) \
66 (phy_addr | phy_type | mdio_access << FW_PARAM_MDIO_CTRL_OFFSET)
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67/***********************************************************/
68/* Structs */
69/***********************************************************/
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70#define INT_PHY 0
71#define EXT_PHY1 1
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72#define EXT_PHY2 2
73#define MAX_PHYS 3
e10bc84d 74
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75/* Same configuration is shared between the XGXS and the first external phy */
76#define LINK_CONFIG_SIZE (MAX_PHYS - 1)
77#define LINK_CONFIG_IDX(_phy_idx) ((_phy_idx == INT_PHY) ? \
78 0 : (_phy_idx - 1))
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79/***********************************************************/
80/* bnx2x_phy struct */
81/* Defines the required arguments and function per phy */
82/***********************************************************/
83struct link_vars;
84struct link_params;
85struct bnx2x_phy;
86
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87typedef u8 (*config_init_t)(struct bnx2x_phy *phy, struct link_params *params,
88 struct link_vars *vars);
89typedef u8 (*read_status_t)(struct bnx2x_phy *phy, struct link_params *params,
90 struct link_vars *vars);
91typedef void (*link_reset_t)(struct bnx2x_phy *phy,
92 struct link_params *params);
93typedef void (*config_loopback_t)(struct bnx2x_phy *phy,
94 struct link_params *params);
95typedef u8 (*format_fw_ver_t)(u32 raw, u8 *str, u16 *len);
96typedef void (*hw_reset_t)(struct bnx2x_phy *phy, struct link_params *params);
97typedef void (*set_link_led_t)(struct bnx2x_phy *phy,
98 struct link_params *params, u8 mode);
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99typedef void (*phy_specific_func_t)(struct bnx2x_phy *phy,
100 struct link_params *params, u32 action);
b7737c9b 101
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102struct bnx2x_phy {
103 u32 type;
104
105 /* Loaded during init */
106 u8 addr;
107
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108 u8 flags;
109 /* Require HW lock */
110#define FLAGS_HW_LOCK_REQUIRED (1<<0)
111 /* No Over-Current detection */
112#define FLAGS_NOC (1<<1)
113 /* Fan failure detection required */
114#define FLAGS_FAN_FAILURE_DET_REQ (1<<2)
115 /* Initialize first the XGXS and only then the phy itself */
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116#define FLAGS_INIT_XGXS_FIRST (1<<3)
117#define FLAGS_REARM_LATCH_SIGNAL (1<<6)
118#define FLAGS_SFP_NOT_APPROVED (1<<7)
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119
120 u8 def_md_devad;
121 u8 reserved;
122 /* preemphasis values for the rx side */
123 u16 rx_preemphasis[4];
124
125 /* preemphasis values for the tx side */
126 u16 tx_preemphasis[4];
127
128 /* EMAC address for access MDIO */
e10bc84d 129 u32 mdio_ctrl;
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130
131 u32 supported;
132
133 u32 media_type;
134#define ETH_PHY_UNSPECIFIED 0x0
135#define ETH_PHY_SFP_FIBER 0x1
136#define ETH_PHY_XFP_FIBER 0x2
137#define ETH_PHY_DA_TWINAX 0x3
138#define ETH_PHY_BASE_T 0x4
139#define ETH_PHY_NOT_PRESENT 0xff
140
141 /* The address in which version is located*/
142 u32 ver_addr;
143
144 u16 req_flow_ctrl;
145
146 u16 req_line_speed;
147
148 u32 speed_cap_mask;
149
150 u16 req_duplex;
151 u16 rsrv;
152 /* Called per phy/port init, and it configures LASI, speed, autoneg,
153 duplex, flow control negotiation, etc. */
154 config_init_t config_init;
155
156 /* Called due to interrupt. It determines the link, speed */
157 read_status_t read_status;
158
159 /* Called when driver is unloading. Should reset the phy */
160 link_reset_t link_reset;
161
162 /* Set the loopback configuration for the phy */
163 config_loopback_t config_loopback;
164
165 /* Format the given raw number into str up to len */
166 format_fw_ver_t format_fw_ver;
167
168 /* Reset the phy (both ports) */
169 hw_reset_t hw_reset;
170
171 /* Set link led mode (on/off/oper)*/
172 set_link_led_t set_link_led;
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173
174 /* PHY Specific tasks */
175 phy_specific_func_t phy_specific_func;
176#define DISABLE_TX 1
177#define ENABLE_TX 2
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178};
179
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180/* Inputs parameters to the CLC */
181struct link_params {
182
183 u8 port;
184
185 /* Default / User Configuration */
186 u8 loopback_mode;
187#define LOOPBACK_NONE 0
188#define LOOPBACK_EMAC 1
189#define LOOPBACK_BMAC 2
de6eae1f 190#define LOOPBACK_XGXS 3
ea4e040a 191#define LOOPBACK_EXT_PHY 4
6bbca910 192#define LOOPBACK_EXT 5
ea4e040a 193
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194 /* Device parameters */
195 u8 mac_addr[6];
8c99e7b0 196
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197 u16 req_duplex[LINK_CONFIG_SIZE];
198 u16 req_flow_ctrl[LINK_CONFIG_SIZE];
199
200 u16 req_line_speed[LINK_CONFIG_SIZE]; /* Also determine AutoNeg */
201
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202 /* shmem parameters */
203 u32 shmem_base;
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204 u32 shmem2_base;
205 u32 speed_cap_mask[LINK_CONFIG_SIZE];
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206 u32 switch_cfg;
207#define SWITCH_CFG_1G PORT_FEATURE_CON_SWITCH_1G_SWITCH
208#define SWITCH_CFG_10G PORT_FEATURE_CON_SWITCH_10G_SWITCH
209#define SWITCH_CFG_AUTO_DETECT PORT_FEATURE_CON_SWITCH_AUTO_DETECT
210
ea4e040a 211 u32 lane_config;
659bc5c4 212
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213 /* Phy register parameter */
214 u32 chip_id;
215
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216 u32 feature_config_flags;
217#define FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED (1<<0)
4d295db0 218#define FEATURE_CONFIG_BC_SUPPORTS_OPT_MDL_VRFY (1<<2)
a22f0788 219#define FEATURE_CONFIG_BC_SUPPORTS_DUAL_PHY_OPT_MDL_VRFY (1<<3)
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220 /* Will be populated during common init */
221 struct bnx2x_phy phy[MAX_PHYS];
222
223 /* Will be populated during common init */
224 u8 num_phys;
1ef70b9c 225
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226 u8 rsrv;
227 u16 hw_led_mode; /* part of the hw_config read from the shmem */
a22f0788 228 u32 multi_phy_config;
b7737c9b 229
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230 /* Device pointer passed to all callback functions */
231 struct bnx2x *bp;
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232 u16 req_fc_auto_adv; /* Should be set to TX / BOTH when
233 req_flow_ctrl is set to AUTO */
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234};
235
236/* Output parameters */
237struct link_vars {
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238 u8 phy_flags;
239
240 u8 mac_type;
241#define MAC_TYPE_NONE 0
242#define MAC_TYPE_EMAC 1
243#define MAC_TYPE_BMAC 2
244
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245 u8 phy_link_up; /* internal phy link indication */
246 u8 link_up;
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247
248 u16 line_speed;
ea4e040a 249 u16 duplex;
1ef70b9c 250
ea4e040a 251 u16 flow_ctrl;
1ef70b9c 252 u16 ieee_fc;
ea4e040a 253
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254 /* The same definitions as the shmem parameter */
255 u32 link_status;
256};
257
258/***********************************************************/
259/* Functions */
260/***********************************************************/
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261u8 bnx2x_phy_init(struct link_params *input, struct link_vars *output);
262
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263/* Reset the link. Should be called when driver or interface goes down
264 Before calling phy firmware upgrade, the reset_ext_phy should be set
265 to 0 */
266u8 bnx2x_link_reset(struct link_params *params, struct link_vars *vars,
267 u8 reset_ext_phy);
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268
269/* bnx2x_link_update should be called upon link interrupt */
270u8 bnx2x_link_update(struct link_params *input, struct link_vars *output);
271
e10bc84d 272/* use the following phy functions to read/write from external_phy
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273 In order to use it to read/write internal phy registers, use
274 DEFAULT_PHY_DEV_ADDR as devad, and (_bank + (_addr & 0xf)) as
ea4e040a 275 the register */
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276u8 bnx2x_phy_read(struct link_params *params, u8 phy_addr,
277 u8 devad, u16 reg, u16 *ret_val);
ea4e040a 278
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279u8 bnx2x_phy_write(struct link_params *params, u8 phy_addr,
280 u8 devad, u16 reg, u16 val);
c18aa15d 281
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282u8 bnx2x_cl45_read(struct bnx2x *bp, struct bnx2x_phy *phy,
283 u8 devad, u16 reg, u16 *ret_val);
ea4e040a 284
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285u8 bnx2x_cl45_write(struct bnx2x *bp, struct bnx2x_phy *phy,
286 u8 devad, u16 reg, u16 val);
ea4e040a 287/* Reads the link_status from the shmem,
33471629 288 and update the link vars accordingly */
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289void bnx2x_link_status_update(struct link_params *input,
290 struct link_vars *output);
291/* returns string representing the fw_version of the external phy */
292u8 bnx2x_get_ext_phy_fw_version(struct link_params *params, u8 driver_loaded,
293 u8 *version, u16 len);
294
295/* Set/Unset the led
296 Basically, the CLC takes care of the led for the link, but in case one needs
33471629 297 to set/unset the led unnaturally, set the "mode" to LED_MODE_OPER to
ea4e040a 298 blink the led, and LED_MODE_OFF to set the led off.*/
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299u8 bnx2x_set_led(struct link_params *params, struct link_vars *vars,
300 u8 mode, u32 speed);
301#define LED_MODE_OFF 0
302#define LED_MODE_ON 1
303#define LED_MODE_OPER 2
304#define LED_MODE_FRONT_PANEL_OFF 3
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305
306u8 bnx2x_override_led_value(struct bnx2x *bp, u8 port, u32 led_idx, u32 value);
307
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308/* bnx2x_handle_module_detect_int should be called upon module detection
309 interrupt */
310void bnx2x_handle_module_detect_int(struct link_params *params);
311
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312/* Get the actual link status. In case it returns 0, link is up,
313 otherwise link is down*/
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314u8 bnx2x_test_link(struct link_params *input, struct link_vars *vars,
315 u8 is_serdes);
ea4e040a 316
6bbca910 317/* One-time initialization for external phy after power up */
a22f0788 318u8 bnx2x_common_init_phy(struct bnx2x *bp, u32 shmem_base, u32 shmem2_base);
ea4e040a 319
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320/* Reset the external PHY using GPIO */
321void bnx2x_ext_phy_hw_reset(struct bnx2x *bp, u8 port);
322
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323/* Reset the external of SFX7101 */
324void bnx2x_sfx7101_sp_sw_reset(struct bnx2x *bp, struct bnx2x_phy *phy);
356e2385 325
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326u8 bnx2x_read_sfp_module_eeprom(struct bnx2x_phy *phy,
327 struct link_params *params, u16 addr,
4d295db0 328 u8 byte_cnt, u8 *o_buf);
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329
330void bnx2x_hw_reset_phy(struct link_params *params);
331
332/* Checks if HW lock is required for this phy/board type */
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333u8 bnx2x_hw_lock_required(struct bnx2x *bp, u32 shmem_base,
334 u32 shmem2_base);
335
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336/* Returns the aggregative supported attributes of the phys on board */
337u32 bnx2x_supported_attr(struct link_params *params, u8 phy_idx);
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338
339/* Check swap bit and adjust PHY order */
340u32 bnx2x_phy_selection(struct link_params *params);
341
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342/* Probe the phys on board, and populate them in "params" */
343u8 bnx2x_phy_probe(struct link_params *params);
d90d96ba 344/* Checks if fan failure detection is required on one of the phys on board */
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345u8 bnx2x_fan_failure_det_req(struct bnx2x *bp, u32 shmem_base,
346 u32 shmem2_base, u8 port);
d90d96ba 347
ea4e040a 348#endif /* BNX2X_LINK_H */