]>
Commit | Line | Data |
---|---|---|
afd4aea0 | 1 | /**************************************************************************** |
f7a6d2c4 BH |
2 | * Driver for Solarflare network controllers and boards |
3 | * Copyright 2009-2013 Solarflare Communications Inc. | |
afd4aea0 BH |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License version 2 as published | |
7 | * by the Free Software Foundation, incorporated herein by reference. | |
8 | */ | |
9 | ||
10 | /* | |
11 | * Driver for PHY related operations via MCDI. | |
12 | */ | |
13 | ||
5a0e3ad6 | 14 | #include <linux/slab.h> |
afd4aea0 | 15 | #include "efx.h" |
afd4aea0 BH |
16 | #include "mcdi.h" |
17 | #include "mcdi_pcol.h" | |
affaf485 SH |
18 | #include "nic.h" |
19 | #include "selftest.h" | |
afd4aea0 | 20 | |
3bd93035 | 21 | struct efx_mcdi_phy_data { |
afd4aea0 BH |
22 | u32 flags; |
23 | u32 type; | |
24 | u32 supported_cap; | |
25 | u32 channel; | |
26 | u32 port; | |
27 | u32 stats_mask; | |
28 | u8 name[20]; | |
29 | u32 media; | |
30 | u32 mmd_mask; | |
31 | u8 revision[20]; | |
32 | u32 forced_cap; | |
33 | }; | |
34 | ||
35 | static int | |
3bd93035 | 36 | efx_mcdi_get_phy_cfg(struct efx_nic *efx, struct efx_mcdi_phy_data *cfg) |
afd4aea0 | 37 | { |
59cfc479 | 38 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_CFG_OUT_LEN); |
afd4aea0 BH |
39 | size_t outlen; |
40 | int rc; | |
41 | ||
42 | BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_IN_LEN != 0); | |
43 | BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_OUT_NAME_LEN != sizeof(cfg->name)); | |
44 | ||
45 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_CFG, NULL, 0, | |
46 | outbuf, sizeof(outbuf), &outlen); | |
47 | if (rc) | |
48 | goto fail; | |
49 | ||
50 | if (outlen < MC_CMD_GET_PHY_CFG_OUT_LEN) { | |
00bbb4a5 | 51 | rc = -EIO; |
afd4aea0 BH |
52 | goto fail; |
53 | } | |
54 | ||
55 | cfg->flags = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_FLAGS); | |
56 | cfg->type = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_TYPE); | |
57 | cfg->supported_cap = | |
58 | MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_SUPPORTED_CAP); | |
59 | cfg->channel = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_CHANNEL); | |
60 | cfg->port = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_PRT); | |
61 | cfg->stats_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_STATS_MASK); | |
62 | memcpy(cfg->name, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_NAME), | |
63 | sizeof(cfg->name)); | |
64 | cfg->media = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MEDIA_TYPE); | |
65 | cfg->mmd_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MMD_MASK); | |
66 | memcpy(cfg->revision, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_REVISION), | |
67 | sizeof(cfg->revision)); | |
68 | ||
69 | return 0; | |
70 | ||
71 | fail: | |
62776d03 | 72 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
73 | return rc; |
74 | } | |
75 | ||
76 | static int efx_mcdi_set_link(struct efx_nic *efx, u32 capabilities, | |
77 | u32 flags, u32 loopback_mode, | |
78 | u32 loopback_speed) | |
79 | { | |
59cfc479 | 80 | MCDI_DECLARE_BUF(inbuf, MC_CMD_SET_LINK_IN_LEN); |
afd4aea0 BH |
81 | int rc; |
82 | ||
83 | BUILD_BUG_ON(MC_CMD_SET_LINK_OUT_LEN != 0); | |
84 | ||
85 | MCDI_SET_DWORD(inbuf, SET_LINK_IN_CAP, capabilities); | |
86 | MCDI_SET_DWORD(inbuf, SET_LINK_IN_FLAGS, flags); | |
87 | MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_MODE, loopback_mode); | |
88 | MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_SPEED, loopback_speed); | |
89 | ||
90 | rc = efx_mcdi_rpc(efx, MC_CMD_SET_LINK, inbuf, sizeof(inbuf), | |
91 | NULL, 0, NULL); | |
afd4aea0 BH |
92 | return rc; |
93 | } | |
94 | ||
95 | static int efx_mcdi_loopback_modes(struct efx_nic *efx, u64 *loopback_modes) | |
96 | { | |
59cfc479 | 97 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LOOPBACK_MODES_OUT_LEN); |
afd4aea0 BH |
98 | size_t outlen; |
99 | int rc; | |
100 | ||
101 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_LOOPBACK_MODES, NULL, 0, | |
102 | outbuf, sizeof(outbuf), &outlen); | |
103 | if (rc) | |
104 | goto fail; | |
105 | ||
f2b0befd BH |
106 | if (outlen < (MC_CMD_GET_LOOPBACK_MODES_OUT_SUGGESTED_OFST + |
107 | MC_CMD_GET_LOOPBACK_MODES_OUT_SUGGESTED_LEN)) { | |
00bbb4a5 | 108 | rc = -EIO; |
afd4aea0 BH |
109 | goto fail; |
110 | } | |
111 | ||
05a9320f | 112 | *loopback_modes = MCDI_QWORD(outbuf, GET_LOOPBACK_MODES_OUT_SUGGESTED); |
afd4aea0 BH |
113 | |
114 | return 0; | |
115 | ||
116 | fail: | |
62776d03 | 117 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
118 | return rc; |
119 | } | |
120 | ||
43f775b2 BH |
121 | static int efx_mcdi_mdio_read(struct net_device *net_dev, |
122 | int prtad, int devad, u16 addr) | |
afd4aea0 | 123 | { |
43f775b2 | 124 | struct efx_nic *efx = netdev_priv(net_dev); |
59cfc479 BH |
125 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MDIO_READ_IN_LEN); |
126 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MDIO_READ_OUT_LEN); | |
afd4aea0 BH |
127 | size_t outlen; |
128 | int rc; | |
129 | ||
43f775b2 | 130 | MCDI_SET_DWORD(inbuf, MDIO_READ_IN_BUS, efx->mdio_bus); |
afd4aea0 BH |
131 | MCDI_SET_DWORD(inbuf, MDIO_READ_IN_PRTAD, prtad); |
132 | MCDI_SET_DWORD(inbuf, MDIO_READ_IN_DEVAD, devad); | |
133 | MCDI_SET_DWORD(inbuf, MDIO_READ_IN_ADDR, addr); | |
134 | ||
135 | rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_READ, inbuf, sizeof(inbuf), | |
136 | outbuf, sizeof(outbuf), &outlen); | |
137 | if (rc) | |
1e0b8120 | 138 | return rc; |
afd4aea0 | 139 | |
43f775b2 BH |
140 | if (MCDI_DWORD(outbuf, MDIO_READ_OUT_STATUS) != |
141 | MC_CMD_MDIO_STATUS_GOOD) | |
142 | return -EIO; | |
143 | ||
144 | return (u16)MCDI_DWORD(outbuf, MDIO_READ_OUT_VALUE); | |
afd4aea0 BH |
145 | } |
146 | ||
43f775b2 BH |
147 | static int efx_mcdi_mdio_write(struct net_device *net_dev, |
148 | int prtad, int devad, u16 addr, u16 value) | |
afd4aea0 | 149 | { |
43f775b2 | 150 | struct efx_nic *efx = netdev_priv(net_dev); |
59cfc479 BH |
151 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MDIO_WRITE_IN_LEN); |
152 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MDIO_WRITE_OUT_LEN); | |
afd4aea0 BH |
153 | size_t outlen; |
154 | int rc; | |
155 | ||
43f775b2 | 156 | MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_BUS, efx->mdio_bus); |
afd4aea0 BH |
157 | MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_PRTAD, prtad); |
158 | MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_DEVAD, devad); | |
159 | MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_ADDR, addr); | |
160 | MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_VALUE, value); | |
161 | ||
162 | rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_WRITE, inbuf, sizeof(inbuf), | |
163 | outbuf, sizeof(outbuf), &outlen); | |
164 | if (rc) | |
1e0b8120 | 165 | return rc; |
afd4aea0 | 166 | |
43f775b2 BH |
167 | if (MCDI_DWORD(outbuf, MDIO_WRITE_OUT_STATUS) != |
168 | MC_CMD_MDIO_STATUS_GOOD) | |
169 | return -EIO; | |
170 | ||
afd4aea0 | 171 | return 0; |
afd4aea0 BH |
172 | } |
173 | ||
174 | static u32 mcdi_to_ethtool_cap(u32 media, u32 cap) | |
175 | { | |
176 | u32 result = 0; | |
177 | ||
178 | switch (media) { | |
179 | case MC_CMD_MEDIA_KX4: | |
180 | result |= SUPPORTED_Backplane; | |
181 | if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) | |
182 | result |= SUPPORTED_1000baseKX_Full; | |
183 | if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) | |
184 | result |= SUPPORTED_10000baseKX4_Full; | |
ac331e94 EC |
185 | if (cap & (1 << MC_CMD_PHY_CAP_40000FDX_LBN)) |
186 | result |= SUPPORTED_40000baseKR4_Full; | |
afd4aea0 BH |
187 | break; |
188 | ||
189 | case MC_CMD_MEDIA_XFP: | |
190 | case MC_CMD_MEDIA_SFP_PLUS: | |
ac331e94 EC |
191 | case MC_CMD_MEDIA_QSFP_PLUS: |
192 | result |= SUPPORTED_FIBRE; | |
3497ed8c BK |
193 | if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) |
194 | result |= SUPPORTED_1000baseT_Full; | |
195 | if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) | |
196 | result |= SUPPORTED_10000baseT_Full; | |
ac331e94 EC |
197 | if (cap & (1 << MC_CMD_PHY_CAP_40000FDX_LBN)) |
198 | result |= SUPPORTED_40000baseCR4_Full; | |
199 | break; | |
200 | ||
afd4aea0 BH |
201 | case MC_CMD_MEDIA_BASE_T: |
202 | result |= SUPPORTED_TP; | |
203 | if (cap & (1 << MC_CMD_PHY_CAP_10HDX_LBN)) | |
204 | result |= SUPPORTED_10baseT_Half; | |
205 | if (cap & (1 << MC_CMD_PHY_CAP_10FDX_LBN)) | |
206 | result |= SUPPORTED_10baseT_Full; | |
207 | if (cap & (1 << MC_CMD_PHY_CAP_100HDX_LBN)) | |
208 | result |= SUPPORTED_100baseT_Half; | |
209 | if (cap & (1 << MC_CMD_PHY_CAP_100FDX_LBN)) | |
210 | result |= SUPPORTED_100baseT_Full; | |
211 | if (cap & (1 << MC_CMD_PHY_CAP_1000HDX_LBN)) | |
212 | result |= SUPPORTED_1000baseT_Half; | |
213 | if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) | |
214 | result |= SUPPORTED_1000baseT_Full; | |
215 | if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) | |
216 | result |= SUPPORTED_10000baseT_Full; | |
217 | break; | |
218 | } | |
219 | ||
220 | if (cap & (1 << MC_CMD_PHY_CAP_PAUSE_LBN)) | |
221 | result |= SUPPORTED_Pause; | |
222 | if (cap & (1 << MC_CMD_PHY_CAP_ASYM_LBN)) | |
223 | result |= SUPPORTED_Asym_Pause; | |
224 | if (cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) | |
225 | result |= SUPPORTED_Autoneg; | |
226 | ||
227 | return result; | |
228 | } | |
229 | ||
230 | static u32 ethtool_to_mcdi_cap(u32 cap) | |
231 | { | |
232 | u32 result = 0; | |
233 | ||
234 | if (cap & SUPPORTED_10baseT_Half) | |
235 | result |= (1 << MC_CMD_PHY_CAP_10HDX_LBN); | |
236 | if (cap & SUPPORTED_10baseT_Full) | |
237 | result |= (1 << MC_CMD_PHY_CAP_10FDX_LBN); | |
238 | if (cap & SUPPORTED_100baseT_Half) | |
239 | result |= (1 << MC_CMD_PHY_CAP_100HDX_LBN); | |
240 | if (cap & SUPPORTED_100baseT_Full) | |
241 | result |= (1 << MC_CMD_PHY_CAP_100FDX_LBN); | |
242 | if (cap & SUPPORTED_1000baseT_Half) | |
243 | result |= (1 << MC_CMD_PHY_CAP_1000HDX_LBN); | |
244 | if (cap & (SUPPORTED_1000baseT_Full | SUPPORTED_1000baseKX_Full)) | |
245 | result |= (1 << MC_CMD_PHY_CAP_1000FDX_LBN); | |
246 | if (cap & (SUPPORTED_10000baseT_Full | SUPPORTED_10000baseKX4_Full)) | |
247 | result |= (1 << MC_CMD_PHY_CAP_10000FDX_LBN); | |
ac331e94 EC |
248 | if (cap & (SUPPORTED_40000baseCR4_Full | SUPPORTED_40000baseKR4_Full)) |
249 | result |= (1 << MC_CMD_PHY_CAP_40000FDX_LBN); | |
afd4aea0 BH |
250 | if (cap & SUPPORTED_Pause) |
251 | result |= (1 << MC_CMD_PHY_CAP_PAUSE_LBN); | |
252 | if (cap & SUPPORTED_Asym_Pause) | |
253 | result |= (1 << MC_CMD_PHY_CAP_ASYM_LBN); | |
254 | if (cap & SUPPORTED_Autoneg) | |
255 | result |= (1 << MC_CMD_PHY_CAP_AN_LBN); | |
256 | ||
257 | return result; | |
258 | } | |
259 | ||
260 | static u32 efx_get_mcdi_phy_flags(struct efx_nic *efx) | |
261 | { | |
3bd93035 | 262 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
afd4aea0 BH |
263 | enum efx_phy_mode mode, supported; |
264 | u32 flags; | |
265 | ||
266 | /* TODO: Advertise the capabilities supported by this PHY */ | |
267 | supported = 0; | |
05a9320f | 268 | if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_TXDIS_LBN)) |
afd4aea0 | 269 | supported |= PHY_MODE_TX_DISABLED; |
05a9320f | 270 | if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_LOWPOWER_LBN)) |
afd4aea0 | 271 | supported |= PHY_MODE_LOW_POWER; |
05a9320f | 272 | if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_POWEROFF_LBN)) |
afd4aea0 BH |
273 | supported |= PHY_MODE_OFF; |
274 | ||
275 | mode = efx->phy_mode & supported; | |
276 | ||
277 | flags = 0; | |
278 | if (mode & PHY_MODE_TX_DISABLED) | |
05a9320f | 279 | flags |= (1 << MC_CMD_SET_LINK_IN_TXDIS_LBN); |
afd4aea0 | 280 | if (mode & PHY_MODE_LOW_POWER) |
05a9320f | 281 | flags |= (1 << MC_CMD_SET_LINK_IN_LOWPOWER_LBN); |
afd4aea0 | 282 | if (mode & PHY_MODE_OFF) |
05a9320f | 283 | flags |= (1 << MC_CMD_SET_LINK_IN_POWEROFF_LBN); |
afd4aea0 BH |
284 | |
285 | return flags; | |
286 | } | |
287 | ||
288 | static u32 mcdi_to_ethtool_media(u32 media) | |
289 | { | |
290 | switch (media) { | |
291 | case MC_CMD_MEDIA_XAUI: | |
292 | case MC_CMD_MEDIA_CX4: | |
293 | case MC_CMD_MEDIA_KX4: | |
294 | return PORT_OTHER; | |
295 | ||
296 | case MC_CMD_MEDIA_XFP: | |
297 | case MC_CMD_MEDIA_SFP_PLUS: | |
ac331e94 | 298 | case MC_CMD_MEDIA_QSFP_PLUS: |
afd4aea0 BH |
299 | return PORT_FIBRE; |
300 | ||
301 | case MC_CMD_MEDIA_BASE_T: | |
302 | return PORT_TP; | |
303 | ||
304 | default: | |
305 | return PORT_OTHER; | |
306 | } | |
307 | } | |
308 | ||
43f775b2 BH |
309 | static void efx_mcdi_phy_decode_link(struct efx_nic *efx, |
310 | struct efx_link_state *link_state, | |
311 | u32 speed, u32 flags, u32 fcntl) | |
312 | { | |
313 | switch (fcntl) { | |
314 | case MC_CMD_FCNTL_AUTO: | |
315 | WARN_ON(1); /* This is not a link mode */ | |
316 | link_state->fc = EFX_FC_AUTO | EFX_FC_TX | EFX_FC_RX; | |
317 | break; | |
318 | case MC_CMD_FCNTL_BIDIR: | |
319 | link_state->fc = EFX_FC_TX | EFX_FC_RX; | |
320 | break; | |
321 | case MC_CMD_FCNTL_RESPOND: | |
322 | link_state->fc = EFX_FC_RX; | |
323 | break; | |
324 | default: | |
325 | WARN_ON(1); | |
326 | case MC_CMD_FCNTL_OFF: | |
327 | link_state->fc = 0; | |
328 | break; | |
329 | } | |
330 | ||
331 | link_state->up = !!(flags & (1 << MC_CMD_GET_LINK_OUT_LINK_UP_LBN)); | |
332 | link_state->fd = !!(flags & (1 << MC_CMD_GET_LINK_OUT_FULL_DUPLEX_LBN)); | |
333 | link_state->speed = speed; | |
334 | } | |
335 | ||
afd4aea0 BH |
336 | static int efx_mcdi_phy_probe(struct efx_nic *efx) |
337 | { | |
3bd93035 | 338 | struct efx_mcdi_phy_data *phy_data; |
59cfc479 | 339 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); |
ff3b00a0 | 340 | u32 caps; |
afd4aea0 BH |
341 | int rc; |
342 | ||
ff3b00a0 SH |
343 | /* Initialise and populate phy_data */ |
344 | phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL); | |
345 | if (phy_data == NULL) | |
346 | return -ENOMEM; | |
347 | ||
348 | rc = efx_mcdi_get_phy_cfg(efx, phy_data); | |
afd4aea0 BH |
349 | if (rc != 0) |
350 | goto fail; | |
351 | ||
ff3b00a0 SH |
352 | /* Read initial link advertisement */ |
353 | BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); | |
354 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, | |
355 | outbuf, sizeof(outbuf), NULL); | |
356 | if (rc) | |
357 | goto fail; | |
358 | ||
359 | /* Fill out nic state */ | |
360 | efx->phy_data = phy_data; | |
361 | efx->phy_type = phy_data->type; | |
afd4aea0 | 362 | |
ff3b00a0 SH |
363 | efx->mdio_bus = phy_data->channel; |
364 | efx->mdio.prtad = phy_data->port; | |
365 | efx->mdio.mmds = phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22); | |
afd4aea0 | 366 | efx->mdio.mode_support = 0; |
ff3b00a0 | 367 | if (phy_data->mmd_mask & (1 << MC_CMD_MMD_CLAUSE22)) |
afd4aea0 | 368 | efx->mdio.mode_support |= MDIO_SUPPORTS_C22; |
ff3b00a0 | 369 | if (phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22)) |
afd4aea0 BH |
370 | efx->mdio.mode_support |= MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; |
371 | ||
ff3b00a0 SH |
372 | caps = MCDI_DWORD(outbuf, GET_LINK_OUT_CAP); |
373 | if (caps & (1 << MC_CMD_PHY_CAP_AN_LBN)) | |
374 | efx->link_advertising = | |
375 | mcdi_to_ethtool_cap(phy_data->media, caps); | |
376 | else | |
377 | phy_data->forced_cap = caps; | |
378 | ||
afd4aea0 BH |
379 | /* Assert that we can map efx -> mcdi loopback modes */ |
380 | BUILD_BUG_ON(LOOPBACK_NONE != MC_CMD_LOOPBACK_NONE); | |
381 | BUILD_BUG_ON(LOOPBACK_DATA != MC_CMD_LOOPBACK_DATA); | |
382 | BUILD_BUG_ON(LOOPBACK_GMAC != MC_CMD_LOOPBACK_GMAC); | |
383 | BUILD_BUG_ON(LOOPBACK_XGMII != MC_CMD_LOOPBACK_XGMII); | |
384 | BUILD_BUG_ON(LOOPBACK_XGXS != MC_CMD_LOOPBACK_XGXS); | |
385 | BUILD_BUG_ON(LOOPBACK_XAUI != MC_CMD_LOOPBACK_XAUI); | |
386 | BUILD_BUG_ON(LOOPBACK_GMII != MC_CMD_LOOPBACK_GMII); | |
387 | BUILD_BUG_ON(LOOPBACK_SGMII != MC_CMD_LOOPBACK_SGMII); | |
388 | BUILD_BUG_ON(LOOPBACK_XGBR != MC_CMD_LOOPBACK_XGBR); | |
389 | BUILD_BUG_ON(LOOPBACK_XFI != MC_CMD_LOOPBACK_XFI); | |
390 | BUILD_BUG_ON(LOOPBACK_XAUI_FAR != MC_CMD_LOOPBACK_XAUI_FAR); | |
391 | BUILD_BUG_ON(LOOPBACK_GMII_FAR != MC_CMD_LOOPBACK_GMII_FAR); | |
392 | BUILD_BUG_ON(LOOPBACK_SGMII_FAR != MC_CMD_LOOPBACK_SGMII_FAR); | |
393 | BUILD_BUG_ON(LOOPBACK_XFI_FAR != MC_CMD_LOOPBACK_XFI_FAR); | |
394 | BUILD_BUG_ON(LOOPBACK_GPHY != MC_CMD_LOOPBACK_GPHY); | |
395 | BUILD_BUG_ON(LOOPBACK_PHYXS != MC_CMD_LOOPBACK_PHYXS); | |
396 | BUILD_BUG_ON(LOOPBACK_PCS != MC_CMD_LOOPBACK_PCS); | |
397 | BUILD_BUG_ON(LOOPBACK_PMAPMD != MC_CMD_LOOPBACK_PMAPMD); | |
398 | BUILD_BUG_ON(LOOPBACK_XPORT != MC_CMD_LOOPBACK_XPORT); | |
399 | BUILD_BUG_ON(LOOPBACK_XGMII_WS != MC_CMD_LOOPBACK_XGMII_WS); | |
400 | BUILD_BUG_ON(LOOPBACK_XAUI_WS != MC_CMD_LOOPBACK_XAUI_WS); | |
401 | BUILD_BUG_ON(LOOPBACK_XAUI_WS_FAR != MC_CMD_LOOPBACK_XAUI_WS_FAR); | |
402 | BUILD_BUG_ON(LOOPBACK_XAUI_WS_NEAR != MC_CMD_LOOPBACK_XAUI_WS_NEAR); | |
403 | BUILD_BUG_ON(LOOPBACK_GMII_WS != MC_CMD_LOOPBACK_GMII_WS); | |
404 | BUILD_BUG_ON(LOOPBACK_XFI_WS != MC_CMD_LOOPBACK_XFI_WS); | |
405 | BUILD_BUG_ON(LOOPBACK_XFI_WS_FAR != MC_CMD_LOOPBACK_XFI_WS_FAR); | |
406 | BUILD_BUG_ON(LOOPBACK_PHYXS_WS != MC_CMD_LOOPBACK_PHYXS_WS); | |
407 | ||
408 | rc = efx_mcdi_loopback_modes(efx, &efx->loopback_modes); | |
409 | if (rc != 0) | |
410 | goto fail; | |
411 | /* The MC indicates that LOOPBACK_NONE is a valid loopback mode, | |
412 | * but by convention we don't */ | |
413 | efx->loopback_modes &= ~(1 << LOOPBACK_NONE); | |
414 | ||
7a6b8f6f SH |
415 | /* Set the initial link mode */ |
416 | efx_mcdi_phy_decode_link( | |
417 | efx, &efx->link_state, | |
418 | MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED), | |
419 | MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS), | |
420 | MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL)); | |
421 | ||
422 | /* Default to Autonegotiated flow control if the PHY supports it */ | |
423 | efx->wanted_fc = EFX_FC_RX | EFX_FC_TX; | |
424 | if (phy_data->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) | |
425 | efx->wanted_fc |= EFX_FC_AUTO; | |
cffe9d4c | 426 | efx_link_set_wanted_fc(efx, efx->wanted_fc); |
7a6b8f6f | 427 | |
afd4aea0 BH |
428 | return 0; |
429 | ||
430 | fail: | |
431 | kfree(phy_data); | |
432 | return rc; | |
433 | } | |
434 | ||
43f775b2 | 435 | int efx_mcdi_port_reconfigure(struct efx_nic *efx) |
afd4aea0 | 436 | { |
3bd93035 | 437 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
afd4aea0 BH |
438 | u32 caps = (efx->link_advertising ? |
439 | ethtool_to_mcdi_cap(efx->link_advertising) : | |
440 | phy_cfg->forced_cap); | |
441 | ||
442 | return efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx), | |
443 | efx->loopback_mode, 0); | |
444 | } | |
445 | ||
afd4aea0 BH |
446 | /* Verify that the forced flow control settings (!EFX_FC_AUTO) are |
447 | * supported by the link partner. Warn the user if this isn't the case | |
448 | */ | |
43f775b2 | 449 | static void efx_mcdi_phy_check_fcntl(struct efx_nic *efx, u32 lpa) |
afd4aea0 | 450 | { |
3bd93035 | 451 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
afd4aea0 BH |
452 | u32 rmtadv; |
453 | ||
25985edc | 454 | /* The link partner capabilities are only relevant if the |
afd4aea0 | 455 | * link supports flow control autonegotiation */ |
7a6b8f6f | 456 | if (~phy_cfg->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) |
afd4aea0 BH |
457 | return; |
458 | ||
459 | /* If flow control autoneg is supported and enabled, then fine */ | |
460 | if (efx->wanted_fc & EFX_FC_AUTO) | |
461 | return; | |
462 | ||
463 | rmtadv = 0; | |
464 | if (lpa & (1 << MC_CMD_PHY_CAP_PAUSE_LBN)) | |
465 | rmtadv |= ADVERTISED_Pause; | |
466 | if (lpa & (1 << MC_CMD_PHY_CAP_ASYM_LBN)) | |
467 | rmtadv |= ADVERTISED_Asym_Pause; | |
468 | ||
469 | if ((efx->wanted_fc & EFX_FC_TX) && rmtadv == ADVERTISED_Asym_Pause) | |
62776d03 BH |
470 | netif_err(efx, link, efx->net_dev, |
471 | "warning: link partner doesn't support pause frames"); | |
afd4aea0 BH |
472 | } |
473 | ||
474 | static bool efx_mcdi_phy_poll(struct efx_nic *efx) | |
475 | { | |
476 | struct efx_link_state old_state = efx->link_state; | |
59cfc479 | 477 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); |
afd4aea0 BH |
478 | int rc; |
479 | ||
480 | WARN_ON(!mutex_is_locked(&efx->mac_lock)); | |
481 | ||
482 | BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); | |
483 | ||
484 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, | |
485 | outbuf, sizeof(outbuf), NULL); | |
1e0b8120 | 486 | if (rc) |
afd4aea0 | 487 | efx->link_state.up = false; |
1e0b8120 | 488 | else |
afd4aea0 BH |
489 | efx_mcdi_phy_decode_link( |
490 | efx, &efx->link_state, | |
491 | MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED), | |
492 | MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS), | |
493 | MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL)); | |
afd4aea0 BH |
494 | |
495 | return !efx_link_state_equal(&efx->link_state, &old_state); | |
496 | } | |
497 | ||
ff3b00a0 | 498 | static void efx_mcdi_phy_remove(struct efx_nic *efx) |
afd4aea0 BH |
499 | { |
500 | struct efx_mcdi_phy_data *phy_data = efx->phy_data; | |
501 | ||
502 | efx->phy_data = NULL; | |
503 | kfree(phy_data); | |
504 | } | |
505 | ||
7cafe8f8 PR |
506 | static void efx_mcdi_phy_get_link_ksettings(struct efx_nic *efx, |
507 | struct ethtool_link_ksettings *cmd) | |
afd4aea0 | 508 | { |
3bd93035 | 509 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
59cfc479 | 510 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); |
afd4aea0 | 511 | int rc; |
7cafe8f8 PR |
512 | u32 supported, advertising, lp_advertising; |
513 | ||
514 | supported = mcdi_to_ethtool_cap(phy_cfg->media, phy_cfg->supported_cap); | |
515 | advertising = efx->link_advertising; | |
516 | cmd->base.speed = efx->link_state.speed; | |
517 | cmd->base.duplex = efx->link_state.fd; | |
518 | cmd->base.port = mcdi_to_ethtool_media(phy_cfg->media); | |
519 | cmd->base.phy_address = phy_cfg->port; | |
520 | cmd->base.autoneg = !!(efx->link_advertising & ADVERTISED_Autoneg); | |
521 | cmd->base.mdio_support = (efx->mdio.mode_support & | |
afd4aea0 BH |
522 | (MDIO_SUPPORTS_C45 | MDIO_SUPPORTS_C22)); |
523 | ||
7cafe8f8 PR |
524 | ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, |
525 | supported); | |
526 | ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, | |
527 | advertising); | |
528 | ||
afd4aea0 BH |
529 | BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); |
530 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, | |
531 | outbuf, sizeof(outbuf), NULL); | |
1e0b8120 | 532 | if (rc) |
afd4aea0 | 533 | return; |
7cafe8f8 | 534 | lp_advertising = |
afd4aea0 BH |
535 | mcdi_to_ethtool_cap(phy_cfg->media, |
536 | MCDI_DWORD(outbuf, GET_LINK_OUT_LP_CAP)); | |
7cafe8f8 PR |
537 | |
538 | ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.lp_advertising, | |
539 | lp_advertising); | |
afd4aea0 BH |
540 | } |
541 | ||
7cafe8f8 PR |
542 | static int |
543 | efx_mcdi_phy_set_link_ksettings(struct efx_nic *efx, | |
544 | const struct ethtool_link_ksettings *cmd) | |
afd4aea0 | 545 | { |
3bd93035 | 546 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
afd4aea0 BH |
547 | u32 caps; |
548 | int rc; | |
7cafe8f8 PR |
549 | u32 advertising; |
550 | ||
551 | ethtool_convert_link_mode_to_legacy_u32(&advertising, | |
552 | cmd->link_modes.advertising); | |
afd4aea0 | 553 | |
7cafe8f8 PR |
554 | if (cmd->base.autoneg) { |
555 | caps = (ethtool_to_mcdi_cap(advertising) | | |
afd4aea0 | 556 | 1 << MC_CMD_PHY_CAP_AN_LBN); |
7cafe8f8 PR |
557 | } else if (cmd->base.duplex) { |
558 | switch (cmd->base.speed) { | |
afd4aea0 BH |
559 | case 10: caps = 1 << MC_CMD_PHY_CAP_10FDX_LBN; break; |
560 | case 100: caps = 1 << MC_CMD_PHY_CAP_100FDX_LBN; break; | |
561 | case 1000: caps = 1 << MC_CMD_PHY_CAP_1000FDX_LBN; break; | |
562 | case 10000: caps = 1 << MC_CMD_PHY_CAP_10000FDX_LBN; break; | |
9a12a306 | 563 | case 40000: caps = 1 << MC_CMD_PHY_CAP_40000FDX_LBN; break; |
afd4aea0 BH |
564 | default: return -EINVAL; |
565 | } | |
566 | } else { | |
7cafe8f8 | 567 | switch (cmd->base.speed) { |
afd4aea0 BH |
568 | case 10: caps = 1 << MC_CMD_PHY_CAP_10HDX_LBN; break; |
569 | case 100: caps = 1 << MC_CMD_PHY_CAP_100HDX_LBN; break; | |
570 | case 1000: caps = 1 << MC_CMD_PHY_CAP_1000HDX_LBN; break; | |
571 | default: return -EINVAL; | |
572 | } | |
573 | } | |
574 | ||
575 | rc = efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx), | |
576 | efx->loopback_mode, 0); | |
577 | if (rc) | |
578 | return rc; | |
579 | ||
7cafe8f8 | 580 | if (cmd->base.autoneg) { |
afd4aea0 | 581 | efx_link_set_advertising( |
7cafe8f8 | 582 | efx, advertising | ADVERTISED_Autoneg); |
afd4aea0 BH |
583 | phy_cfg->forced_cap = 0; |
584 | } else { | |
585 | efx_link_set_advertising(efx, 0); | |
586 | phy_cfg->forced_cap = caps; | |
587 | } | |
588 | return 0; | |
589 | } | |
590 | ||
4f16c073 BH |
591 | static int efx_mcdi_phy_test_alive(struct efx_nic *efx) |
592 | { | |
59cfc479 | 593 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_STATE_OUT_LEN); |
4f16c073 BH |
594 | size_t outlen; |
595 | int rc; | |
596 | ||
597 | BUILD_BUG_ON(MC_CMD_GET_PHY_STATE_IN_LEN != 0); | |
598 | ||
599 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_STATE, NULL, 0, | |
600 | outbuf, sizeof(outbuf), &outlen); | |
601 | if (rc) | |
602 | return rc; | |
603 | ||
604 | if (outlen < MC_CMD_GET_PHY_STATE_OUT_LEN) | |
00bbb4a5 | 605 | return -EIO; |
05a9320f | 606 | if (MCDI_DWORD(outbuf, GET_PHY_STATE_OUT_STATE) != MC_CMD_PHY_STATE_OK) |
4f16c073 BH |
607 | return -EINVAL; |
608 | ||
609 | return 0; | |
610 | } | |
611 | ||
affaf485 SH |
612 | static const char *const mcdi_sft9001_cable_diag_names[] = { |
613 | "cable.pairA.length", | |
614 | "cable.pairB.length", | |
615 | "cable.pairC.length", | |
616 | "cable.pairD.length", | |
617 | "cable.pairA.status", | |
618 | "cable.pairB.status", | |
619 | "cable.pairC.status", | |
620 | "cable.pairD.status", | |
621 | }; | |
622 | ||
623 | static int efx_mcdi_bist(struct efx_nic *efx, unsigned int bist_mode, | |
624 | int *results) | |
625 | { | |
626 | unsigned int retry, i, count = 0; | |
627 | size_t outlen; | |
628 | u32 status; | |
c5bb0e98 BH |
629 | MCDI_DECLARE_BUF(inbuf, MC_CMD_START_BIST_IN_LEN); |
630 | MCDI_DECLARE_BUF(outbuf, MC_CMD_POLL_BIST_OUT_SFT9001_LEN); | |
631 | u8 *ptr; | |
affaf485 SH |
632 | int rc; |
633 | ||
affaf485 | 634 | BUILD_BUG_ON(MC_CMD_START_BIST_OUT_LEN != 0); |
c5bb0e98 BH |
635 | MCDI_SET_DWORD(inbuf, START_BIST_IN_TYPE, bist_mode); |
636 | rc = efx_mcdi_rpc(efx, MC_CMD_START_BIST, | |
637 | inbuf, MC_CMD_START_BIST_IN_LEN, NULL, 0, NULL); | |
affaf485 SH |
638 | if (rc) |
639 | goto out; | |
640 | ||
641 | /* Wait up to 10s for BIST to finish */ | |
642 | for (retry = 0; retry < 100; ++retry) { | |
643 | BUILD_BUG_ON(MC_CMD_POLL_BIST_IN_LEN != 0); | |
644 | rc = efx_mcdi_rpc(efx, MC_CMD_POLL_BIST, NULL, 0, | |
c5bb0e98 | 645 | outbuf, sizeof(outbuf), &outlen); |
affaf485 SH |
646 | if (rc) |
647 | goto out; | |
648 | ||
c5bb0e98 | 649 | status = MCDI_DWORD(outbuf, POLL_BIST_OUT_RESULT); |
affaf485 SH |
650 | if (status != MC_CMD_POLL_BIST_RUNNING) |
651 | goto finished; | |
652 | ||
653 | msleep(100); | |
654 | } | |
655 | ||
656 | rc = -ETIMEDOUT; | |
657 | goto out; | |
658 | ||
659 | finished: | |
660 | results[count++] = (status == MC_CMD_POLL_BIST_PASSED) ? 1 : -1; | |
661 | ||
662 | /* SFT9001 specific cable diagnostics output */ | |
663 | if (efx->phy_type == PHY_TYPE_SFT9001B && | |
664 | (bist_mode == MC_CMD_PHY_BIST_CABLE_SHORT || | |
665 | bist_mode == MC_CMD_PHY_BIST_CABLE_LONG)) { | |
c5bb0e98 | 666 | ptr = MCDI_PTR(outbuf, POLL_BIST_OUT_SFT9001_CABLE_LENGTH_A); |
affaf485 SH |
667 | if (status == MC_CMD_POLL_BIST_PASSED && |
668 | outlen >= MC_CMD_POLL_BIST_OUT_SFT9001_LEN) { | |
669 | for (i = 0; i < 8; i++) { | |
670 | results[count + i] = | |
671 | EFX_DWORD_FIELD(((efx_dword_t *)ptr)[i], | |
672 | EFX_DWORD_0); | |
673 | } | |
674 | } | |
675 | count += 8; | |
676 | } | |
677 | rc = count; | |
678 | ||
679 | out: | |
affaf485 SH |
680 | return rc; |
681 | } | |
682 | ||
683 | static int efx_mcdi_phy_run_tests(struct efx_nic *efx, int *results, | |
684 | unsigned flags) | |
685 | { | |
3bd93035 | 686 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
affaf485 SH |
687 | u32 mode; |
688 | int rc; | |
689 | ||
05a9320f | 690 | if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN)) { |
affaf485 SH |
691 | rc = efx_mcdi_bist(efx, MC_CMD_PHY_BIST, results); |
692 | if (rc < 0) | |
693 | return rc; | |
694 | ||
695 | results += rc; | |
696 | } | |
697 | ||
698 | /* If we support both LONG and SHORT, then run each in response to | |
699 | * break or not. Otherwise, run the one we support */ | |
700 | mode = 0; | |
05a9320f | 701 | if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN)) { |
affaf485 SH |
702 | if ((flags & ETH_TEST_FL_OFFLINE) && |
703 | (phy_cfg->flags & | |
05a9320f | 704 | (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN))) |
affaf485 SH |
705 | mode = MC_CMD_PHY_BIST_CABLE_LONG; |
706 | else | |
707 | mode = MC_CMD_PHY_BIST_CABLE_SHORT; | |
708 | } else if (phy_cfg->flags & | |
05a9320f | 709 | (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN)) |
affaf485 SH |
710 | mode = MC_CMD_PHY_BIST_CABLE_LONG; |
711 | ||
712 | if (mode != 0) { | |
713 | rc = efx_mcdi_bist(efx, mode, results); | |
714 | if (rc < 0) | |
715 | return rc; | |
716 | results += rc; | |
717 | } | |
718 | ||
719 | return 0; | |
720 | } | |
721 | ||
d215697f | 722 | static const char *efx_mcdi_phy_test_name(struct efx_nic *efx, |
723 | unsigned int index) | |
affaf485 | 724 | { |
3bd93035 | 725 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
affaf485 | 726 | |
05a9320f | 727 | if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN)) { |
affaf485 SH |
728 | if (index == 0) |
729 | return "bist"; | |
730 | --index; | |
731 | } | |
732 | ||
05a9320f BH |
733 | if (phy_cfg->flags & ((1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN) | |
734 | (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN))) { | |
affaf485 SH |
735 | if (index == 0) |
736 | return "cable"; | |
737 | --index; | |
738 | ||
739 | if (efx->phy_type == PHY_TYPE_SFT9001B) { | |
740 | if (index < ARRAY_SIZE(mcdi_sft9001_cable_diag_names)) | |
741 | return mcdi_sft9001_cable_diag_names[index]; | |
742 | index -= ARRAY_SIZE(mcdi_sft9001_cable_diag_names); | |
743 | } | |
744 | } | |
745 | ||
746 | return NULL; | |
747 | } | |
748 | ||
c087bd2c SH |
749 | #define SFP_PAGE_SIZE 128 |
750 | #define SFP_NUM_PAGES 2 | |
751 | static int efx_mcdi_phy_get_module_eeprom(struct efx_nic *efx, | |
752 | struct ethtool_eeprom *ee, u8 *data) | |
753 | { | |
59cfc479 BH |
754 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_MEDIA_INFO_OUT_LENMAX); |
755 | MCDI_DECLARE_BUF(inbuf, MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN); | |
c087bd2c SH |
756 | size_t outlen; |
757 | int rc; | |
758 | unsigned int payload_len; | |
759 | unsigned int space_remaining = ee->len; | |
760 | unsigned int page; | |
761 | unsigned int page_off; | |
762 | unsigned int to_copy; | |
763 | u8 *user_data = data; | |
764 | ||
765 | BUILD_BUG_ON(SFP_PAGE_SIZE * SFP_NUM_PAGES != ETH_MODULE_SFF_8079_LEN); | |
766 | ||
767 | page_off = ee->offset % SFP_PAGE_SIZE; | |
768 | page = ee->offset / SFP_PAGE_SIZE; | |
769 | ||
770 | while (space_remaining && (page < SFP_NUM_PAGES)) { | |
771 | MCDI_SET_DWORD(inbuf, GET_PHY_MEDIA_INFO_IN_PAGE, page); | |
772 | ||
773 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_MEDIA_INFO, | |
774 | inbuf, sizeof(inbuf), | |
775 | outbuf, sizeof(outbuf), | |
776 | &outlen); | |
777 | if (rc) | |
778 | return rc; | |
779 | ||
780 | if (outlen < (MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_OFST + | |
781 | SFP_PAGE_SIZE)) | |
782 | return -EIO; | |
783 | ||
784 | payload_len = MCDI_DWORD(outbuf, | |
785 | GET_PHY_MEDIA_INFO_OUT_DATALEN); | |
786 | if (payload_len != SFP_PAGE_SIZE) | |
787 | return -EIO; | |
788 | ||
789 | /* Copy as much as we can into data */ | |
790 | payload_len -= page_off; | |
791 | to_copy = (space_remaining < payload_len) ? | |
792 | space_remaining : payload_len; | |
793 | ||
794 | memcpy(user_data, | |
c5bb0e98 | 795 | MCDI_PTR(outbuf, GET_PHY_MEDIA_INFO_OUT_DATA) + page_off, |
c087bd2c SH |
796 | to_copy); |
797 | ||
798 | space_remaining -= to_copy; | |
799 | user_data += to_copy; | |
800 | page_off = 0; | |
801 | page++; | |
802 | } | |
803 | ||
804 | return 0; | |
805 | } | |
806 | ||
807 | static int efx_mcdi_phy_get_module_info(struct efx_nic *efx, | |
808 | struct ethtool_modinfo *modinfo) | |
809 | { | |
810 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; | |
811 | ||
812 | switch (phy_cfg->media) { | |
813 | case MC_CMD_MEDIA_SFP_PLUS: | |
814 | modinfo->type = ETH_MODULE_SFF_8079; | |
815 | modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; | |
816 | return 0; | |
817 | default: | |
818 | return -EOPNOTSUPP; | |
819 | } | |
820 | } | |
821 | ||
43f775b2 | 822 | static const struct efx_phy_operations efx_mcdi_phy_ops = { |
afd4aea0 | 823 | .probe = efx_mcdi_phy_probe, |
9c636baf | 824 | .init = efx_port_dummy_op_int, |
43f775b2 | 825 | .reconfigure = efx_mcdi_port_reconfigure, |
afd4aea0 | 826 | .poll = efx_mcdi_phy_poll, |
ff3b00a0 SH |
827 | .fini = efx_port_dummy_op_void, |
828 | .remove = efx_mcdi_phy_remove, | |
7cafe8f8 PR |
829 | .get_link_ksettings = efx_mcdi_phy_get_link_ksettings, |
830 | .set_link_ksettings = efx_mcdi_phy_set_link_ksettings, | |
4f16c073 | 831 | .test_alive = efx_mcdi_phy_test_alive, |
affaf485 SH |
832 | .run_tests = efx_mcdi_phy_run_tests, |
833 | .test_name = efx_mcdi_phy_test_name, | |
c087bd2c SH |
834 | .get_module_eeprom = efx_mcdi_phy_get_module_eeprom, |
835 | .get_module_info = efx_mcdi_phy_get_module_info, | |
afd4aea0 | 836 | }; |
43f775b2 | 837 | |
8127d661 BH |
838 | u32 efx_mcdi_phy_get_caps(struct efx_nic *efx) |
839 | { | |
840 | struct efx_mcdi_phy_data *phy_data = efx->phy_data; | |
841 | ||
842 | return phy_data->supported_cap; | |
843 | } | |
844 | ||
43f775b2 BH |
845 | static unsigned int efx_mcdi_event_link_speed[] = { |
846 | [MCDI_EVENT_LINKCHANGE_SPEED_100M] = 100, | |
847 | [MCDI_EVENT_LINKCHANGE_SPEED_1G] = 1000, | |
848 | [MCDI_EVENT_LINKCHANGE_SPEED_10G] = 10000, | |
9a12a306 | 849 | [MCDI_EVENT_LINKCHANGE_SPEED_40G] = 40000, |
43f775b2 BH |
850 | }; |
851 | ||
852 | void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev) | |
853 | { | |
854 | u32 flags, fcntl, speed, lpa; | |
855 | ||
856 | speed = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_SPEED); | |
e01b16a7 | 857 | EFX_WARN_ON_PARANOID(speed >= ARRAY_SIZE(efx_mcdi_event_link_speed)); |
43f775b2 BH |
858 | speed = efx_mcdi_event_link_speed[speed]; |
859 | ||
860 | flags = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LINK_FLAGS); | |
861 | fcntl = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_FCNTL); | |
862 | lpa = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LP_CAP); | |
863 | ||
864 | /* efx->link_state is only modified by efx_mcdi_phy_get_link(), | |
865 | * which is only run after flushing the event queues. Therefore, it | |
866 | * is safe to modify the link state outside of the mac_lock here. | |
867 | */ | |
868 | efx_mcdi_phy_decode_link(efx, &efx->link_state, speed, flags, fcntl); | |
869 | ||
870 | efx_mcdi_phy_check_fcntl(efx, lpa); | |
871 | ||
872 | efx_link_status_changed(efx); | |
873 | } | |
874 | ||
875 | int efx_mcdi_set_mac(struct efx_nic *efx) | |
876 | { | |
964e6135 | 877 | u32 fcntl; |
43f775b2 BH |
878 | MCDI_DECLARE_BUF(cmdbytes, MC_CMD_SET_MAC_IN_LEN); |
879 | ||
880 | BUILD_BUG_ON(MC_CMD_SET_MAC_OUT_LEN != 0); | |
881 | ||
910c8789 | 882 | /* This has no effect on EF10 */ |
cd84ff4d EC |
883 | ether_addr_copy(MCDI_PTR(cmdbytes, SET_MAC_IN_ADDR), |
884 | efx->net_dev->dev_addr); | |
43f775b2 BH |
885 | |
886 | MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_MTU, | |
887 | EFX_MAX_FRAME_LEN(efx->net_dev->mtu)); | |
888 | MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_DRAIN, 0); | |
889 | ||
964e6135 BH |
890 | /* Set simple MAC filter for Siena */ |
891 | MCDI_POPULATE_DWORD_1(cmdbytes, SET_MAC_IN_REJECT, | |
892 | SET_MAC_IN_REJECT_UNCST, efx->unicast_filter); | |
43f775b2 BH |
893 | |
894 | switch (efx->wanted_fc) { | |
895 | case EFX_FC_RX | EFX_FC_TX: | |
896 | fcntl = MC_CMD_FCNTL_BIDIR; | |
897 | break; | |
898 | case EFX_FC_RX: | |
899 | fcntl = MC_CMD_FCNTL_RESPOND; | |
900 | break; | |
901 | default: | |
902 | fcntl = MC_CMD_FCNTL_OFF; | |
903 | break; | |
904 | } | |
905 | if (efx->wanted_fc & EFX_FC_AUTO) | |
906 | fcntl = MC_CMD_FCNTL_AUTO; | |
907 | if (efx->fc_disable) | |
908 | fcntl = MC_CMD_FCNTL_OFF; | |
909 | ||
910 | MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_FCNTL, fcntl); | |
911 | ||
912 | return efx_mcdi_rpc(efx, MC_CMD_SET_MAC, cmdbytes, sizeof(cmdbytes), | |
913 | NULL, 0, NULL); | |
914 | } | |
915 | ||
916 | bool efx_mcdi_mac_check_fault(struct efx_nic *efx) | |
917 | { | |
918 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); | |
919 | size_t outlength; | |
920 | int rc; | |
921 | ||
922 | BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); | |
923 | ||
924 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, | |
925 | outbuf, sizeof(outbuf), &outlength); | |
1e0b8120 | 926 | if (rc) |
43f775b2 | 927 | return true; |
43f775b2 BH |
928 | |
929 | return MCDI_DWORD(outbuf, GET_LINK_OUT_MAC_FAULT) != 0; | |
930 | } | |
931 | ||
f8f3b5ae JC |
932 | enum efx_stats_action { |
933 | EFX_STATS_ENABLE, | |
934 | EFX_STATS_DISABLE, | |
935 | EFX_STATS_PULL, | |
936 | }; | |
937 | ||
938 | static int efx_mcdi_mac_stats(struct efx_nic *efx, | |
939 | enum efx_stats_action action, int clear) | |
43f775b2 | 940 | { |
0a2ab4d9 | 941 | struct efx_ef10_nic_data *nic_data = efx->nic_data; |
43f775b2 BH |
942 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAC_STATS_IN_LEN); |
943 | int rc; | |
f8f3b5ae JC |
944 | int change = action == EFX_STATS_PULL ? 0 : 1; |
945 | int enable = action == EFX_STATS_ENABLE ? 1 : 0; | |
946 | int period = action == EFX_STATS_ENABLE ? 1000 : 0; | |
947 | dma_addr_t dma_addr = efx->stats_buffer.dma_addr; | |
948 | u32 dma_len = action != EFX_STATS_DISABLE ? | |
949 | MC_CMD_MAC_NSTATS * sizeof(u64) : 0; | |
43f775b2 BH |
950 | |
951 | BUILD_BUG_ON(MC_CMD_MAC_STATS_OUT_DMA_LEN != 0); | |
952 | ||
953 | MCDI_SET_QWORD(inbuf, MAC_STATS_IN_DMA_ADDR, dma_addr); | |
f5253d92 BH |
954 | MCDI_POPULATE_DWORD_7(inbuf, MAC_STATS_IN_CMD, |
955 | MAC_STATS_IN_DMA, !!enable, | |
956 | MAC_STATS_IN_CLEAR, clear, | |
f8f3b5ae JC |
957 | MAC_STATS_IN_PERIODIC_CHANGE, change, |
958 | MAC_STATS_IN_PERIODIC_ENABLE, enable, | |
f5253d92 BH |
959 | MAC_STATS_IN_PERIODIC_CLEAR, 0, |
960 | MAC_STATS_IN_PERIODIC_NOEVENT, 1, | |
961 | MAC_STATS_IN_PERIOD_MS, period); | |
43f775b2 | 962 | MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_LEN, dma_len); |
0a2ab4d9 | 963 | MCDI_SET_DWORD(inbuf, MAC_STATS_IN_PORT_ID, nic_data->vport_id); |
43f775b2 | 964 | |
6dd4859b DP |
965 | rc = efx_mcdi_rpc_quiet(efx, MC_CMD_MAC_STATS, inbuf, sizeof(inbuf), |
966 | NULL, 0, NULL); | |
967 | /* Expect ENOENT if DMA queues have not been set up */ | |
968 | if (rc && (rc != -ENOENT || atomic_read(&efx->active_queues))) | |
969 | efx_mcdi_display_error(efx, MC_CMD_MAC_STATS, sizeof(inbuf), | |
970 | NULL, 0, rc); | |
43f775b2 BH |
971 | return rc; |
972 | } | |
973 | ||
974 | void efx_mcdi_mac_start_stats(struct efx_nic *efx) | |
975 | { | |
976 | __le64 *dma_stats = efx->stats_buffer.addr; | |
977 | ||
978 | dma_stats[MC_CMD_MAC_GENERATION_END] = EFX_MC_STATS_GENERATION_INVALID; | |
979 | ||
f8f3b5ae | 980 | efx_mcdi_mac_stats(efx, EFX_STATS_ENABLE, 0); |
43f775b2 BH |
981 | } |
982 | ||
983 | void efx_mcdi_mac_stop_stats(struct efx_nic *efx) | |
984 | { | |
f8f3b5ae JC |
985 | efx_mcdi_mac_stats(efx, EFX_STATS_DISABLE, 0); |
986 | } | |
987 | ||
988 | #define EFX_MAC_STATS_WAIT_US 100 | |
989 | #define EFX_MAC_STATS_WAIT_ATTEMPTS 10 | |
990 | ||
991 | void efx_mcdi_mac_pull_stats(struct efx_nic *efx) | |
992 | { | |
993 | __le64 *dma_stats = efx->stats_buffer.addr; | |
994 | int attempts = EFX_MAC_STATS_WAIT_ATTEMPTS; | |
995 | ||
996 | dma_stats[MC_CMD_MAC_GENERATION_END] = EFX_MC_STATS_GENERATION_INVALID; | |
997 | efx_mcdi_mac_stats(efx, EFX_STATS_PULL, 0); | |
998 | ||
999 | while (dma_stats[MC_CMD_MAC_GENERATION_END] == | |
1000 | EFX_MC_STATS_GENERATION_INVALID && | |
1001 | attempts-- != 0) | |
1002 | udelay(EFX_MAC_STATS_WAIT_US); | |
43f775b2 BH |
1003 | } |
1004 | ||
1005 | int efx_mcdi_port_probe(struct efx_nic *efx) | |
1006 | { | |
1007 | int rc; | |
1008 | ||
1009 | /* Hook in PHY operations table */ | |
1010 | efx->phy_op = &efx_mcdi_phy_ops; | |
1011 | ||
1012 | /* Set up MDIO structure for PHY */ | |
1013 | efx->mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; | |
1014 | efx->mdio.mdio_read = efx_mcdi_mdio_read; | |
1015 | efx->mdio.mdio_write = efx_mcdi_mdio_write; | |
1016 | ||
1017 | /* Fill out MDIO structure, loopback modes, and initial link state */ | |
1018 | rc = efx->phy_op->probe(efx); | |
1019 | if (rc != 0) | |
1020 | return rc; | |
1021 | ||
1022 | /* Allocate buffer for stats */ | |
1023 | rc = efx_nic_alloc_buffer(efx, &efx->stats_buffer, | |
0d19a540 | 1024 | MC_CMD_MAC_NSTATS * sizeof(u64), GFP_KERNEL); |
43f775b2 BH |
1025 | if (rc) |
1026 | return rc; | |
1027 | netif_dbg(efx, probe, efx->net_dev, | |
1028 | "stats buffer at %llx (virt %p phys %llx)\n", | |
1029 | (u64)efx->stats_buffer.dma_addr, | |
1030 | efx->stats_buffer.addr, | |
1031 | (u64)virt_to_phys(efx->stats_buffer.addr)); | |
1032 | ||
f8f3b5ae | 1033 | efx_mcdi_mac_stats(efx, EFX_STATS_DISABLE, 1); |
43f775b2 BH |
1034 | |
1035 | return 0; | |
1036 | } | |
1037 | ||
1038 | void efx_mcdi_port_remove(struct efx_nic *efx) | |
1039 | { | |
1040 | efx->phy_op->remove(efx); | |
1041 | efx_nic_free_buffer(efx, &efx->stats_buffer); | |
1042 | } | |
8127d661 BH |
1043 | |
1044 | /* Get physical port number (EF10 only; on Siena it is same as PF number) */ | |
1045 | int efx_mcdi_port_get_number(struct efx_nic *efx) | |
1046 | { | |
1047 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PORT_ASSIGNMENT_OUT_LEN); | |
1048 | int rc; | |
1049 | ||
1050 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_PORT_ASSIGNMENT, NULL, 0, | |
1051 | outbuf, sizeof(outbuf), NULL); | |
1052 | if (rc) | |
1053 | return rc; | |
1054 | ||
1055 | return MCDI_DWORD(outbuf, GET_PORT_ASSIGNMENT_OUT_PORT); | |
1056 | } |