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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
afd4aea0 | 2 | /**************************************************************************** |
f7a6d2c4 BH |
3 | * Driver for Solarflare network controllers and boards |
4 | * Copyright 2009-2013 Solarflare Communications Inc. | |
afd4aea0 BH |
5 | */ |
6 | ||
7 | /* | |
8 | * Driver for PHY related operations via MCDI. | |
9 | */ | |
10 | ||
5a0e3ad6 | 11 | #include <linux/slab.h> |
afd4aea0 | 12 | #include "efx.h" |
afd4aea0 BH |
13 | #include "mcdi.h" |
14 | #include "mcdi_pcol.h" | |
affaf485 SH |
15 | #include "nic.h" |
16 | #include "selftest.h" | |
afd4aea0 | 17 | |
3bd93035 | 18 | struct efx_mcdi_phy_data { |
afd4aea0 BH |
19 | u32 flags; |
20 | u32 type; | |
21 | u32 supported_cap; | |
22 | u32 channel; | |
23 | u32 port; | |
24 | u32 stats_mask; | |
25 | u8 name[20]; | |
26 | u32 media; | |
27 | u32 mmd_mask; | |
28 | u8 revision[20]; | |
29 | u32 forced_cap; | |
30 | }; | |
31 | ||
32 | static int | |
3bd93035 | 33 | efx_mcdi_get_phy_cfg(struct efx_nic *efx, struct efx_mcdi_phy_data *cfg) |
afd4aea0 | 34 | { |
59cfc479 | 35 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_CFG_OUT_LEN); |
afd4aea0 BH |
36 | size_t outlen; |
37 | int rc; | |
38 | ||
39 | BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_IN_LEN != 0); | |
40 | BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_OUT_NAME_LEN != sizeof(cfg->name)); | |
41 | ||
42 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_CFG, NULL, 0, | |
43 | outbuf, sizeof(outbuf), &outlen); | |
44 | if (rc) | |
45 | goto fail; | |
46 | ||
47 | if (outlen < MC_CMD_GET_PHY_CFG_OUT_LEN) { | |
00bbb4a5 | 48 | rc = -EIO; |
afd4aea0 BH |
49 | goto fail; |
50 | } | |
51 | ||
52 | cfg->flags = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_FLAGS); | |
53 | cfg->type = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_TYPE); | |
54 | cfg->supported_cap = | |
55 | MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_SUPPORTED_CAP); | |
56 | cfg->channel = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_CHANNEL); | |
57 | cfg->port = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_PRT); | |
58 | cfg->stats_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_STATS_MASK); | |
59 | memcpy(cfg->name, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_NAME), | |
60 | sizeof(cfg->name)); | |
61 | cfg->media = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MEDIA_TYPE); | |
62 | cfg->mmd_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MMD_MASK); | |
63 | memcpy(cfg->revision, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_REVISION), | |
64 | sizeof(cfg->revision)); | |
65 | ||
66 | return 0; | |
67 | ||
68 | fail: | |
62776d03 | 69 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
70 | return rc; |
71 | } | |
72 | ||
73 | static int efx_mcdi_set_link(struct efx_nic *efx, u32 capabilities, | |
74 | u32 flags, u32 loopback_mode, | |
75 | u32 loopback_speed) | |
76 | { | |
59cfc479 | 77 | MCDI_DECLARE_BUF(inbuf, MC_CMD_SET_LINK_IN_LEN); |
afd4aea0 BH |
78 | int rc; |
79 | ||
80 | BUILD_BUG_ON(MC_CMD_SET_LINK_OUT_LEN != 0); | |
81 | ||
82 | MCDI_SET_DWORD(inbuf, SET_LINK_IN_CAP, capabilities); | |
83 | MCDI_SET_DWORD(inbuf, SET_LINK_IN_FLAGS, flags); | |
84 | MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_MODE, loopback_mode); | |
85 | MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_SPEED, loopback_speed); | |
86 | ||
87 | rc = efx_mcdi_rpc(efx, MC_CMD_SET_LINK, inbuf, sizeof(inbuf), | |
88 | NULL, 0, NULL); | |
afd4aea0 BH |
89 | return rc; |
90 | } | |
91 | ||
92 | static int efx_mcdi_loopback_modes(struct efx_nic *efx, u64 *loopback_modes) | |
93 | { | |
59cfc479 | 94 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LOOPBACK_MODES_OUT_LEN); |
afd4aea0 BH |
95 | size_t outlen; |
96 | int rc; | |
97 | ||
98 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_LOOPBACK_MODES, NULL, 0, | |
99 | outbuf, sizeof(outbuf), &outlen); | |
100 | if (rc) | |
101 | goto fail; | |
102 | ||
f2b0befd BH |
103 | if (outlen < (MC_CMD_GET_LOOPBACK_MODES_OUT_SUGGESTED_OFST + |
104 | MC_CMD_GET_LOOPBACK_MODES_OUT_SUGGESTED_LEN)) { | |
00bbb4a5 | 105 | rc = -EIO; |
afd4aea0 BH |
106 | goto fail; |
107 | } | |
108 | ||
05a9320f | 109 | *loopback_modes = MCDI_QWORD(outbuf, GET_LOOPBACK_MODES_OUT_SUGGESTED); |
afd4aea0 BH |
110 | |
111 | return 0; | |
112 | ||
113 | fail: | |
62776d03 | 114 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
115 | return rc; |
116 | } | |
117 | ||
43f775b2 BH |
118 | static int efx_mcdi_mdio_read(struct net_device *net_dev, |
119 | int prtad, int devad, u16 addr) | |
afd4aea0 | 120 | { |
43f775b2 | 121 | struct efx_nic *efx = netdev_priv(net_dev); |
59cfc479 BH |
122 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MDIO_READ_IN_LEN); |
123 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MDIO_READ_OUT_LEN); | |
afd4aea0 BH |
124 | size_t outlen; |
125 | int rc; | |
126 | ||
43f775b2 | 127 | MCDI_SET_DWORD(inbuf, MDIO_READ_IN_BUS, efx->mdio_bus); |
afd4aea0 BH |
128 | MCDI_SET_DWORD(inbuf, MDIO_READ_IN_PRTAD, prtad); |
129 | MCDI_SET_DWORD(inbuf, MDIO_READ_IN_DEVAD, devad); | |
130 | MCDI_SET_DWORD(inbuf, MDIO_READ_IN_ADDR, addr); | |
131 | ||
132 | rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_READ, inbuf, sizeof(inbuf), | |
133 | outbuf, sizeof(outbuf), &outlen); | |
134 | if (rc) | |
1e0b8120 | 135 | return rc; |
afd4aea0 | 136 | |
43f775b2 BH |
137 | if (MCDI_DWORD(outbuf, MDIO_READ_OUT_STATUS) != |
138 | MC_CMD_MDIO_STATUS_GOOD) | |
139 | return -EIO; | |
140 | ||
141 | return (u16)MCDI_DWORD(outbuf, MDIO_READ_OUT_VALUE); | |
afd4aea0 BH |
142 | } |
143 | ||
43f775b2 BH |
144 | static int efx_mcdi_mdio_write(struct net_device *net_dev, |
145 | int prtad, int devad, u16 addr, u16 value) | |
afd4aea0 | 146 | { |
43f775b2 | 147 | struct efx_nic *efx = netdev_priv(net_dev); |
59cfc479 BH |
148 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MDIO_WRITE_IN_LEN); |
149 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MDIO_WRITE_OUT_LEN); | |
afd4aea0 BH |
150 | size_t outlen; |
151 | int rc; | |
152 | ||
43f775b2 | 153 | MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_BUS, efx->mdio_bus); |
afd4aea0 BH |
154 | MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_PRTAD, prtad); |
155 | MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_DEVAD, devad); | |
156 | MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_ADDR, addr); | |
157 | MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_VALUE, value); | |
158 | ||
159 | rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_WRITE, inbuf, sizeof(inbuf), | |
160 | outbuf, sizeof(outbuf), &outlen); | |
161 | if (rc) | |
1e0b8120 | 162 | return rc; |
afd4aea0 | 163 | |
43f775b2 BH |
164 | if (MCDI_DWORD(outbuf, MDIO_WRITE_OUT_STATUS) != |
165 | MC_CMD_MDIO_STATUS_GOOD) | |
166 | return -EIO; | |
167 | ||
afd4aea0 | 168 | return 0; |
afd4aea0 BH |
169 | } |
170 | ||
c2ab85d2 | 171 | static void mcdi_to_ethtool_linkset(u32 media, u32 cap, unsigned long *linkset) |
afd4aea0 | 172 | { |
c2ab85d2 EC |
173 | #define SET_BIT(name) __set_bit(ETHTOOL_LINK_MODE_ ## name ## _BIT, \ |
174 | linkset) | |
afd4aea0 | 175 | |
c2ab85d2 | 176 | bitmap_zero(linkset, __ETHTOOL_LINK_MODE_MASK_NBITS); |
afd4aea0 BH |
177 | switch (media) { |
178 | case MC_CMD_MEDIA_KX4: | |
c2ab85d2 | 179 | SET_BIT(Backplane); |
afd4aea0 | 180 | if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) |
c2ab85d2 | 181 | SET_BIT(1000baseKX_Full); |
afd4aea0 | 182 | if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) |
c2ab85d2 | 183 | SET_BIT(10000baseKX4_Full); |
ac331e94 | 184 | if (cap & (1 << MC_CMD_PHY_CAP_40000FDX_LBN)) |
c2ab85d2 | 185 | SET_BIT(40000baseKR4_Full); |
afd4aea0 BH |
186 | break; |
187 | ||
188 | case MC_CMD_MEDIA_XFP: | |
189 | case MC_CMD_MEDIA_SFP_PLUS: | |
ac331e94 | 190 | case MC_CMD_MEDIA_QSFP_PLUS: |
c2ab85d2 | 191 | SET_BIT(FIBRE); |
3497ed8c | 192 | if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) |
c2ab85d2 | 193 | SET_BIT(1000baseT_Full); |
3497ed8c | 194 | if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) |
c2ab85d2 | 195 | SET_BIT(10000baseT_Full); |
ac331e94 | 196 | if (cap & (1 << MC_CMD_PHY_CAP_40000FDX_LBN)) |
c2ab85d2 | 197 | SET_BIT(40000baseCR4_Full); |
5abb5e7f EC |
198 | if (cap & (1 << MC_CMD_PHY_CAP_100000FDX_LBN)) |
199 | SET_BIT(100000baseCR4_Full); | |
200 | if (cap & (1 << MC_CMD_PHY_CAP_25000FDX_LBN)) | |
201 | SET_BIT(25000baseCR_Full); | |
202 | if (cap & (1 << MC_CMD_PHY_CAP_50000FDX_LBN)) | |
203 | SET_BIT(50000baseCR2_Full); | |
ac331e94 EC |
204 | break; |
205 | ||
afd4aea0 | 206 | case MC_CMD_MEDIA_BASE_T: |
c2ab85d2 | 207 | SET_BIT(TP); |
afd4aea0 | 208 | if (cap & (1 << MC_CMD_PHY_CAP_10HDX_LBN)) |
c2ab85d2 | 209 | SET_BIT(10baseT_Half); |
afd4aea0 | 210 | if (cap & (1 << MC_CMD_PHY_CAP_10FDX_LBN)) |
c2ab85d2 | 211 | SET_BIT(10baseT_Full); |
afd4aea0 | 212 | if (cap & (1 << MC_CMD_PHY_CAP_100HDX_LBN)) |
c2ab85d2 | 213 | SET_BIT(100baseT_Half); |
afd4aea0 | 214 | if (cap & (1 << MC_CMD_PHY_CAP_100FDX_LBN)) |
c2ab85d2 | 215 | SET_BIT(100baseT_Full); |
afd4aea0 | 216 | if (cap & (1 << MC_CMD_PHY_CAP_1000HDX_LBN)) |
c2ab85d2 | 217 | SET_BIT(1000baseT_Half); |
afd4aea0 | 218 | if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) |
c2ab85d2 | 219 | SET_BIT(1000baseT_Full); |
afd4aea0 | 220 | if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) |
c2ab85d2 | 221 | SET_BIT(10000baseT_Full); |
afd4aea0 BH |
222 | break; |
223 | } | |
224 | ||
225 | if (cap & (1 << MC_CMD_PHY_CAP_PAUSE_LBN)) | |
c2ab85d2 | 226 | SET_BIT(Pause); |
afd4aea0 | 227 | if (cap & (1 << MC_CMD_PHY_CAP_ASYM_LBN)) |
c2ab85d2 | 228 | SET_BIT(Asym_Pause); |
afd4aea0 | 229 | if (cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) |
c2ab85d2 | 230 | SET_BIT(Autoneg); |
afd4aea0 | 231 | |
c2ab85d2 | 232 | #undef SET_BIT |
afd4aea0 BH |
233 | } |
234 | ||
c2ab85d2 | 235 | static u32 ethtool_linkset_to_mcdi_cap(const unsigned long *linkset) |
afd4aea0 BH |
236 | { |
237 | u32 result = 0; | |
238 | ||
c2ab85d2 EC |
239 | #define TEST_BIT(name) test_bit(ETHTOOL_LINK_MODE_ ## name ## _BIT, \ |
240 | linkset) | |
241 | ||
242 | if (TEST_BIT(10baseT_Half)) | |
afd4aea0 | 243 | result |= (1 << MC_CMD_PHY_CAP_10HDX_LBN); |
c2ab85d2 | 244 | if (TEST_BIT(10baseT_Full)) |
afd4aea0 | 245 | result |= (1 << MC_CMD_PHY_CAP_10FDX_LBN); |
c2ab85d2 | 246 | if (TEST_BIT(100baseT_Half)) |
afd4aea0 | 247 | result |= (1 << MC_CMD_PHY_CAP_100HDX_LBN); |
c2ab85d2 | 248 | if (TEST_BIT(100baseT_Full)) |
afd4aea0 | 249 | result |= (1 << MC_CMD_PHY_CAP_100FDX_LBN); |
c2ab85d2 | 250 | if (TEST_BIT(1000baseT_Half)) |
afd4aea0 | 251 | result |= (1 << MC_CMD_PHY_CAP_1000HDX_LBN); |
c2ab85d2 | 252 | if (TEST_BIT(1000baseT_Full) || TEST_BIT(1000baseKX_Full)) |
afd4aea0 | 253 | result |= (1 << MC_CMD_PHY_CAP_1000FDX_LBN); |
c2ab85d2 | 254 | if (TEST_BIT(10000baseT_Full) || TEST_BIT(10000baseKX4_Full)) |
afd4aea0 | 255 | result |= (1 << MC_CMD_PHY_CAP_10000FDX_LBN); |
c2ab85d2 | 256 | if (TEST_BIT(40000baseCR4_Full) || TEST_BIT(40000baseKR4_Full)) |
ac331e94 | 257 | result |= (1 << MC_CMD_PHY_CAP_40000FDX_LBN); |
5abb5e7f EC |
258 | if (TEST_BIT(100000baseCR4_Full)) |
259 | result |= (1 << MC_CMD_PHY_CAP_100000FDX_LBN); | |
260 | if (TEST_BIT(25000baseCR_Full)) | |
261 | result |= (1 << MC_CMD_PHY_CAP_25000FDX_LBN); | |
262 | if (TEST_BIT(50000baseCR2_Full)) | |
263 | result |= (1 << MC_CMD_PHY_CAP_50000FDX_LBN); | |
c2ab85d2 | 264 | if (TEST_BIT(Pause)) |
afd4aea0 | 265 | result |= (1 << MC_CMD_PHY_CAP_PAUSE_LBN); |
c2ab85d2 | 266 | if (TEST_BIT(Asym_Pause)) |
afd4aea0 | 267 | result |= (1 << MC_CMD_PHY_CAP_ASYM_LBN); |
c2ab85d2 | 268 | if (TEST_BIT(Autoneg)) |
afd4aea0 BH |
269 | result |= (1 << MC_CMD_PHY_CAP_AN_LBN); |
270 | ||
c2ab85d2 EC |
271 | #undef TEST_BIT |
272 | ||
afd4aea0 BH |
273 | return result; |
274 | } | |
275 | ||
276 | static u32 efx_get_mcdi_phy_flags(struct efx_nic *efx) | |
277 | { | |
3bd93035 | 278 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
afd4aea0 BH |
279 | enum efx_phy_mode mode, supported; |
280 | u32 flags; | |
281 | ||
282 | /* TODO: Advertise the capabilities supported by this PHY */ | |
283 | supported = 0; | |
05a9320f | 284 | if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_TXDIS_LBN)) |
afd4aea0 | 285 | supported |= PHY_MODE_TX_DISABLED; |
05a9320f | 286 | if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_LOWPOWER_LBN)) |
afd4aea0 | 287 | supported |= PHY_MODE_LOW_POWER; |
05a9320f | 288 | if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_POWEROFF_LBN)) |
afd4aea0 BH |
289 | supported |= PHY_MODE_OFF; |
290 | ||
291 | mode = efx->phy_mode & supported; | |
292 | ||
293 | flags = 0; | |
294 | if (mode & PHY_MODE_TX_DISABLED) | |
05a9320f | 295 | flags |= (1 << MC_CMD_SET_LINK_IN_TXDIS_LBN); |
afd4aea0 | 296 | if (mode & PHY_MODE_LOW_POWER) |
05a9320f | 297 | flags |= (1 << MC_CMD_SET_LINK_IN_LOWPOWER_LBN); |
afd4aea0 | 298 | if (mode & PHY_MODE_OFF) |
05a9320f | 299 | flags |= (1 << MC_CMD_SET_LINK_IN_POWEROFF_LBN); |
afd4aea0 BH |
300 | |
301 | return flags; | |
302 | } | |
303 | ||
c2ab85d2 | 304 | static u8 mcdi_to_ethtool_media(u32 media) |
afd4aea0 BH |
305 | { |
306 | switch (media) { | |
307 | case MC_CMD_MEDIA_XAUI: | |
308 | case MC_CMD_MEDIA_CX4: | |
309 | case MC_CMD_MEDIA_KX4: | |
310 | return PORT_OTHER; | |
311 | ||
312 | case MC_CMD_MEDIA_XFP: | |
313 | case MC_CMD_MEDIA_SFP_PLUS: | |
ac331e94 | 314 | case MC_CMD_MEDIA_QSFP_PLUS: |
afd4aea0 BH |
315 | return PORT_FIBRE; |
316 | ||
317 | case MC_CMD_MEDIA_BASE_T: | |
318 | return PORT_TP; | |
319 | ||
320 | default: | |
321 | return PORT_OTHER; | |
322 | } | |
323 | } | |
324 | ||
43f775b2 BH |
325 | static void efx_mcdi_phy_decode_link(struct efx_nic *efx, |
326 | struct efx_link_state *link_state, | |
327 | u32 speed, u32 flags, u32 fcntl) | |
328 | { | |
329 | switch (fcntl) { | |
330 | case MC_CMD_FCNTL_AUTO: | |
331 | WARN_ON(1); /* This is not a link mode */ | |
332 | link_state->fc = EFX_FC_AUTO | EFX_FC_TX | EFX_FC_RX; | |
333 | break; | |
334 | case MC_CMD_FCNTL_BIDIR: | |
335 | link_state->fc = EFX_FC_TX | EFX_FC_RX; | |
336 | break; | |
337 | case MC_CMD_FCNTL_RESPOND: | |
338 | link_state->fc = EFX_FC_RX; | |
339 | break; | |
340 | default: | |
341 | WARN_ON(1); | |
4a46a7c3 | 342 | /* Fall through */ |
43f775b2 BH |
343 | case MC_CMD_FCNTL_OFF: |
344 | link_state->fc = 0; | |
345 | break; | |
346 | } | |
347 | ||
348 | link_state->up = !!(flags & (1 << MC_CMD_GET_LINK_OUT_LINK_UP_LBN)); | |
349 | link_state->fd = !!(flags & (1 << MC_CMD_GET_LINK_OUT_FULL_DUPLEX_LBN)); | |
350 | link_state->speed = speed; | |
351 | } | |
352 | ||
7f61e6c6 EC |
353 | /* The semantics of the ethtool FEC mode bitmask are not well defined, |
354 | * particularly the meaning of combinations of bits. Which means we get to | |
355 | * define our own semantics, as follows: | |
356 | * OFF overrides any other bits, and means "disable all FEC" (with the | |
357 | * exception of 25G KR4/CR4, where it is not possible to reject it if AN | |
358 | * partner requests it). | |
359 | * AUTO on its own means use cable requirements and link partner autoneg with | |
360 | * fw-default preferences for the cable type. | |
361 | * AUTO and either RS or BASER means use the specified FEC type if cable and | |
362 | * link partner support it, otherwise autoneg/fw-default. | |
363 | * RS or BASER alone means use the specified FEC type if cable and link partner | |
364 | * support it and either requests it, otherwise no FEC. | |
365 | * Both RS and BASER (whether AUTO or not) means use FEC if cable and link | |
366 | * partner support it, preferring RS to BASER. | |
367 | */ | |
368 | static u32 ethtool_fec_caps_to_mcdi(u32 ethtool_cap) | |
369 | { | |
370 | u32 ret = 0; | |
371 | ||
372 | if (ethtool_cap & ETHTOOL_FEC_OFF) | |
373 | return 0; | |
374 | ||
375 | if (ethtool_cap & ETHTOOL_FEC_AUTO) | |
376 | ret |= (1 << MC_CMD_PHY_CAP_BASER_FEC_LBN) | | |
377 | (1 << MC_CMD_PHY_CAP_25G_BASER_FEC_LBN) | | |
378 | (1 << MC_CMD_PHY_CAP_RS_FEC_LBN); | |
379 | if (ethtool_cap & ETHTOOL_FEC_RS) | |
380 | ret |= (1 << MC_CMD_PHY_CAP_RS_FEC_LBN) | | |
381 | (1 << MC_CMD_PHY_CAP_RS_FEC_REQUESTED_LBN); | |
382 | if (ethtool_cap & ETHTOOL_FEC_BASER) | |
383 | ret |= (1 << MC_CMD_PHY_CAP_BASER_FEC_LBN) | | |
384 | (1 << MC_CMD_PHY_CAP_25G_BASER_FEC_LBN) | | |
385 | (1 << MC_CMD_PHY_CAP_BASER_FEC_REQUESTED_LBN) | | |
386 | (1 << MC_CMD_PHY_CAP_25G_BASER_FEC_REQUESTED_LBN); | |
387 | return ret; | |
388 | } | |
389 | ||
390 | /* Invert ethtool_fec_caps_to_mcdi. There are two combinations that function | |
391 | * can never produce, (baser xor rs) and neither req; the implementation below | |
392 | * maps both of those to AUTO. This should never matter, and it's not clear | |
393 | * what a better mapping would be anyway. | |
394 | */ | |
395 | static u32 mcdi_fec_caps_to_ethtool(u32 caps, bool is_25g) | |
396 | { | |
397 | bool rs = caps & (1 << MC_CMD_PHY_CAP_RS_FEC_LBN), | |
398 | rs_req = caps & (1 << MC_CMD_PHY_CAP_RS_FEC_REQUESTED_LBN), | |
399 | baser = is_25g ? caps & (1 << MC_CMD_PHY_CAP_25G_BASER_FEC_LBN) | |
400 | : caps & (1 << MC_CMD_PHY_CAP_BASER_FEC_LBN), | |
401 | baser_req = is_25g ? caps & (1 << MC_CMD_PHY_CAP_25G_BASER_FEC_REQUESTED_LBN) | |
402 | : caps & (1 << MC_CMD_PHY_CAP_BASER_FEC_REQUESTED_LBN); | |
403 | ||
404 | if (!baser && !rs) | |
405 | return ETHTOOL_FEC_OFF; | |
406 | return (rs_req ? ETHTOOL_FEC_RS : 0) | | |
407 | (baser_req ? ETHTOOL_FEC_BASER : 0) | | |
408 | (baser == baser_req && rs == rs_req ? 0 : ETHTOOL_FEC_AUTO); | |
409 | } | |
410 | ||
afd4aea0 BH |
411 | static int efx_mcdi_phy_probe(struct efx_nic *efx) |
412 | { | |
3bd93035 | 413 | struct efx_mcdi_phy_data *phy_data; |
59cfc479 | 414 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); |
ff3b00a0 | 415 | u32 caps; |
afd4aea0 BH |
416 | int rc; |
417 | ||
ff3b00a0 SH |
418 | /* Initialise and populate phy_data */ |
419 | phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL); | |
420 | if (phy_data == NULL) | |
421 | return -ENOMEM; | |
422 | ||
423 | rc = efx_mcdi_get_phy_cfg(efx, phy_data); | |
afd4aea0 BH |
424 | if (rc != 0) |
425 | goto fail; | |
426 | ||
ff3b00a0 SH |
427 | /* Read initial link advertisement */ |
428 | BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); | |
429 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, | |
430 | outbuf, sizeof(outbuf), NULL); | |
431 | if (rc) | |
432 | goto fail; | |
433 | ||
434 | /* Fill out nic state */ | |
435 | efx->phy_data = phy_data; | |
436 | efx->phy_type = phy_data->type; | |
afd4aea0 | 437 | |
ff3b00a0 SH |
438 | efx->mdio_bus = phy_data->channel; |
439 | efx->mdio.prtad = phy_data->port; | |
440 | efx->mdio.mmds = phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22); | |
afd4aea0 | 441 | efx->mdio.mode_support = 0; |
ff3b00a0 | 442 | if (phy_data->mmd_mask & (1 << MC_CMD_MMD_CLAUSE22)) |
afd4aea0 | 443 | efx->mdio.mode_support |= MDIO_SUPPORTS_C22; |
ff3b00a0 | 444 | if (phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22)) |
afd4aea0 BH |
445 | efx->mdio.mode_support |= MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; |
446 | ||
ff3b00a0 SH |
447 | caps = MCDI_DWORD(outbuf, GET_LINK_OUT_CAP); |
448 | if (caps & (1 << MC_CMD_PHY_CAP_AN_LBN)) | |
c2ab85d2 EC |
449 | mcdi_to_ethtool_linkset(phy_data->media, caps, |
450 | efx->link_advertising); | |
ff3b00a0 SH |
451 | else |
452 | phy_data->forced_cap = caps; | |
453 | ||
afd4aea0 BH |
454 | /* Assert that we can map efx -> mcdi loopback modes */ |
455 | BUILD_BUG_ON(LOOPBACK_NONE != MC_CMD_LOOPBACK_NONE); | |
456 | BUILD_BUG_ON(LOOPBACK_DATA != MC_CMD_LOOPBACK_DATA); | |
457 | BUILD_BUG_ON(LOOPBACK_GMAC != MC_CMD_LOOPBACK_GMAC); | |
458 | BUILD_BUG_ON(LOOPBACK_XGMII != MC_CMD_LOOPBACK_XGMII); | |
459 | BUILD_BUG_ON(LOOPBACK_XGXS != MC_CMD_LOOPBACK_XGXS); | |
460 | BUILD_BUG_ON(LOOPBACK_XAUI != MC_CMD_LOOPBACK_XAUI); | |
461 | BUILD_BUG_ON(LOOPBACK_GMII != MC_CMD_LOOPBACK_GMII); | |
462 | BUILD_BUG_ON(LOOPBACK_SGMII != MC_CMD_LOOPBACK_SGMII); | |
463 | BUILD_BUG_ON(LOOPBACK_XGBR != MC_CMD_LOOPBACK_XGBR); | |
464 | BUILD_BUG_ON(LOOPBACK_XFI != MC_CMD_LOOPBACK_XFI); | |
465 | BUILD_BUG_ON(LOOPBACK_XAUI_FAR != MC_CMD_LOOPBACK_XAUI_FAR); | |
466 | BUILD_BUG_ON(LOOPBACK_GMII_FAR != MC_CMD_LOOPBACK_GMII_FAR); | |
467 | BUILD_BUG_ON(LOOPBACK_SGMII_FAR != MC_CMD_LOOPBACK_SGMII_FAR); | |
468 | BUILD_BUG_ON(LOOPBACK_XFI_FAR != MC_CMD_LOOPBACK_XFI_FAR); | |
469 | BUILD_BUG_ON(LOOPBACK_GPHY != MC_CMD_LOOPBACK_GPHY); | |
470 | BUILD_BUG_ON(LOOPBACK_PHYXS != MC_CMD_LOOPBACK_PHYXS); | |
471 | BUILD_BUG_ON(LOOPBACK_PCS != MC_CMD_LOOPBACK_PCS); | |
472 | BUILD_BUG_ON(LOOPBACK_PMAPMD != MC_CMD_LOOPBACK_PMAPMD); | |
473 | BUILD_BUG_ON(LOOPBACK_XPORT != MC_CMD_LOOPBACK_XPORT); | |
474 | BUILD_BUG_ON(LOOPBACK_XGMII_WS != MC_CMD_LOOPBACK_XGMII_WS); | |
475 | BUILD_BUG_ON(LOOPBACK_XAUI_WS != MC_CMD_LOOPBACK_XAUI_WS); | |
476 | BUILD_BUG_ON(LOOPBACK_XAUI_WS_FAR != MC_CMD_LOOPBACK_XAUI_WS_FAR); | |
477 | BUILD_BUG_ON(LOOPBACK_XAUI_WS_NEAR != MC_CMD_LOOPBACK_XAUI_WS_NEAR); | |
478 | BUILD_BUG_ON(LOOPBACK_GMII_WS != MC_CMD_LOOPBACK_GMII_WS); | |
479 | BUILD_BUG_ON(LOOPBACK_XFI_WS != MC_CMD_LOOPBACK_XFI_WS); | |
480 | BUILD_BUG_ON(LOOPBACK_XFI_WS_FAR != MC_CMD_LOOPBACK_XFI_WS_FAR); | |
481 | BUILD_BUG_ON(LOOPBACK_PHYXS_WS != MC_CMD_LOOPBACK_PHYXS_WS); | |
482 | ||
483 | rc = efx_mcdi_loopback_modes(efx, &efx->loopback_modes); | |
484 | if (rc != 0) | |
485 | goto fail; | |
486 | /* The MC indicates that LOOPBACK_NONE is a valid loopback mode, | |
487 | * but by convention we don't */ | |
488 | efx->loopback_modes &= ~(1 << LOOPBACK_NONE); | |
489 | ||
7a6b8f6f SH |
490 | /* Set the initial link mode */ |
491 | efx_mcdi_phy_decode_link( | |
492 | efx, &efx->link_state, | |
493 | MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED), | |
494 | MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS), | |
495 | MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL)); | |
496 | ||
7f61e6c6 EC |
497 | /* Record the initial FEC configuration (or nearest approximation |
498 | * representable in the ethtool configuration space) | |
499 | */ | |
500 | efx->fec_config = mcdi_fec_caps_to_ethtool(caps, | |
501 | efx->link_state.speed == 25000 || | |
502 | efx->link_state.speed == 50000); | |
503 | ||
7a6b8f6f SH |
504 | /* Default to Autonegotiated flow control if the PHY supports it */ |
505 | efx->wanted_fc = EFX_FC_RX | EFX_FC_TX; | |
506 | if (phy_data->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) | |
507 | efx->wanted_fc |= EFX_FC_AUTO; | |
cffe9d4c | 508 | efx_link_set_wanted_fc(efx, efx->wanted_fc); |
7a6b8f6f | 509 | |
afd4aea0 BH |
510 | return 0; |
511 | ||
512 | fail: | |
513 | kfree(phy_data); | |
514 | return rc; | |
515 | } | |
516 | ||
43f775b2 | 517 | int efx_mcdi_port_reconfigure(struct efx_nic *efx) |
afd4aea0 | 518 | { |
3bd93035 | 519 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
c2ab85d2 EC |
520 | u32 caps = (efx->link_advertising[0] ? |
521 | ethtool_linkset_to_mcdi_cap(efx->link_advertising) : | |
afd4aea0 BH |
522 | phy_cfg->forced_cap); |
523 | ||
7f61e6c6 EC |
524 | caps |= ethtool_fec_caps_to_mcdi(efx->fec_config); |
525 | ||
afd4aea0 BH |
526 | return efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx), |
527 | efx->loopback_mode, 0); | |
528 | } | |
529 | ||
afd4aea0 BH |
530 | /* Verify that the forced flow control settings (!EFX_FC_AUTO) are |
531 | * supported by the link partner. Warn the user if this isn't the case | |
532 | */ | |
43f775b2 | 533 | static void efx_mcdi_phy_check_fcntl(struct efx_nic *efx, u32 lpa) |
afd4aea0 | 534 | { |
3bd93035 | 535 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
afd4aea0 BH |
536 | u32 rmtadv; |
537 | ||
25985edc | 538 | /* The link partner capabilities are only relevant if the |
afd4aea0 | 539 | * link supports flow control autonegotiation */ |
7a6b8f6f | 540 | if (~phy_cfg->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) |
afd4aea0 BH |
541 | return; |
542 | ||
543 | /* If flow control autoneg is supported and enabled, then fine */ | |
544 | if (efx->wanted_fc & EFX_FC_AUTO) | |
545 | return; | |
546 | ||
547 | rmtadv = 0; | |
548 | if (lpa & (1 << MC_CMD_PHY_CAP_PAUSE_LBN)) | |
549 | rmtadv |= ADVERTISED_Pause; | |
550 | if (lpa & (1 << MC_CMD_PHY_CAP_ASYM_LBN)) | |
551 | rmtadv |= ADVERTISED_Asym_Pause; | |
552 | ||
553 | if ((efx->wanted_fc & EFX_FC_TX) && rmtadv == ADVERTISED_Asym_Pause) | |
62776d03 BH |
554 | netif_err(efx, link, efx->net_dev, |
555 | "warning: link partner doesn't support pause frames"); | |
afd4aea0 BH |
556 | } |
557 | ||
558 | static bool efx_mcdi_phy_poll(struct efx_nic *efx) | |
559 | { | |
560 | struct efx_link_state old_state = efx->link_state; | |
59cfc479 | 561 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); |
afd4aea0 BH |
562 | int rc; |
563 | ||
564 | WARN_ON(!mutex_is_locked(&efx->mac_lock)); | |
565 | ||
566 | BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); | |
567 | ||
568 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, | |
569 | outbuf, sizeof(outbuf), NULL); | |
1e0b8120 | 570 | if (rc) |
afd4aea0 | 571 | efx->link_state.up = false; |
1e0b8120 | 572 | else |
afd4aea0 BH |
573 | efx_mcdi_phy_decode_link( |
574 | efx, &efx->link_state, | |
575 | MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED), | |
576 | MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS), | |
577 | MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL)); | |
afd4aea0 BH |
578 | |
579 | return !efx_link_state_equal(&efx->link_state, &old_state); | |
580 | } | |
581 | ||
ff3b00a0 | 582 | static void efx_mcdi_phy_remove(struct efx_nic *efx) |
afd4aea0 BH |
583 | { |
584 | struct efx_mcdi_phy_data *phy_data = efx->phy_data; | |
585 | ||
586 | efx->phy_data = NULL; | |
587 | kfree(phy_data); | |
588 | } | |
589 | ||
7cafe8f8 PR |
590 | static void efx_mcdi_phy_get_link_ksettings(struct efx_nic *efx, |
591 | struct ethtool_link_ksettings *cmd) | |
afd4aea0 | 592 | { |
3bd93035 | 593 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
59cfc479 | 594 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); |
afd4aea0 | 595 | int rc; |
7cafe8f8 | 596 | |
7cafe8f8 PR |
597 | cmd->base.speed = efx->link_state.speed; |
598 | cmd->base.duplex = efx->link_state.fd; | |
599 | cmd->base.port = mcdi_to_ethtool_media(phy_cfg->media); | |
600 | cmd->base.phy_address = phy_cfg->port; | |
c2ab85d2 | 601 | cmd->base.autoneg = !!(efx->link_advertising[0] & ADVERTISED_Autoneg); |
7cafe8f8 | 602 | cmd->base.mdio_support = (efx->mdio.mode_support & |
afd4aea0 BH |
603 | (MDIO_SUPPORTS_C45 | MDIO_SUPPORTS_C22)); |
604 | ||
c2ab85d2 EC |
605 | mcdi_to_ethtool_linkset(phy_cfg->media, phy_cfg->supported_cap, |
606 | cmd->link_modes.supported); | |
607 | memcpy(cmd->link_modes.advertising, efx->link_advertising, | |
608 | sizeof(__ETHTOOL_DECLARE_LINK_MODE_MASK())); | |
7cafe8f8 | 609 | |
afd4aea0 BH |
610 | BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); |
611 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, | |
612 | outbuf, sizeof(outbuf), NULL); | |
1e0b8120 | 613 | if (rc) |
afd4aea0 | 614 | return; |
c2ab85d2 EC |
615 | mcdi_to_ethtool_linkset(phy_cfg->media, |
616 | MCDI_DWORD(outbuf, GET_LINK_OUT_LP_CAP), | |
617 | cmd->link_modes.lp_advertising); | |
afd4aea0 BH |
618 | } |
619 | ||
7cafe8f8 PR |
620 | static int |
621 | efx_mcdi_phy_set_link_ksettings(struct efx_nic *efx, | |
622 | const struct ethtool_link_ksettings *cmd) | |
afd4aea0 | 623 | { |
3bd93035 | 624 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
afd4aea0 BH |
625 | u32 caps; |
626 | int rc; | |
627 | ||
7cafe8f8 | 628 | if (cmd->base.autoneg) { |
c2ab85d2 EC |
629 | caps = (ethtool_linkset_to_mcdi_cap(cmd->link_modes.advertising) | |
630 | 1 << MC_CMD_PHY_CAP_AN_LBN); | |
7cafe8f8 PR |
631 | } else if (cmd->base.duplex) { |
632 | switch (cmd->base.speed) { | |
702b3d51 EC |
633 | case 10: caps = 1 << MC_CMD_PHY_CAP_10FDX_LBN; break; |
634 | case 100: caps = 1 << MC_CMD_PHY_CAP_100FDX_LBN; break; | |
635 | case 1000: caps = 1 << MC_CMD_PHY_CAP_1000FDX_LBN; break; | |
636 | case 10000: caps = 1 << MC_CMD_PHY_CAP_10000FDX_LBN; break; | |
637 | case 40000: caps = 1 << MC_CMD_PHY_CAP_40000FDX_LBN; break; | |
638 | case 100000: caps = 1 << MC_CMD_PHY_CAP_100000FDX_LBN; break; | |
639 | case 25000: caps = 1 << MC_CMD_PHY_CAP_25000FDX_LBN; break; | |
640 | case 50000: caps = 1 << MC_CMD_PHY_CAP_50000FDX_LBN; break; | |
641 | default: return -EINVAL; | |
afd4aea0 BH |
642 | } |
643 | } else { | |
7cafe8f8 | 644 | switch (cmd->base.speed) { |
702b3d51 EC |
645 | case 10: caps = 1 << MC_CMD_PHY_CAP_10HDX_LBN; break; |
646 | case 100: caps = 1 << MC_CMD_PHY_CAP_100HDX_LBN; break; | |
647 | case 1000: caps = 1 << MC_CMD_PHY_CAP_1000HDX_LBN; break; | |
648 | default: return -EINVAL; | |
afd4aea0 BH |
649 | } |
650 | } | |
651 | ||
7f61e6c6 EC |
652 | caps |= ethtool_fec_caps_to_mcdi(efx->fec_config); |
653 | ||
afd4aea0 BH |
654 | rc = efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx), |
655 | efx->loopback_mode, 0); | |
656 | if (rc) | |
657 | return rc; | |
658 | ||
7cafe8f8 | 659 | if (cmd->base.autoneg) { |
c2ab85d2 | 660 | efx_link_set_advertising(efx, cmd->link_modes.advertising); |
afd4aea0 BH |
661 | phy_cfg->forced_cap = 0; |
662 | } else { | |
c2ab85d2 | 663 | efx_link_clear_advertising(efx); |
afd4aea0 BH |
664 | phy_cfg->forced_cap = caps; |
665 | } | |
666 | return 0; | |
667 | } | |
668 | ||
7f61e6c6 EC |
669 | static int efx_mcdi_phy_get_fecparam(struct efx_nic *efx, |
670 | struct ethtool_fecparam *fec) | |
671 | { | |
672 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_V2_LEN); | |
673 | u32 caps, active, speed; /* MCDI format */ | |
674 | bool is_25g = false; | |
675 | size_t outlen; | |
676 | int rc; | |
677 | ||
678 | BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); | |
679 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, | |
680 | outbuf, sizeof(outbuf), &outlen); | |
681 | if (rc) | |
682 | return rc; | |
683 | if (outlen < MC_CMD_GET_LINK_OUT_V2_LEN) | |
684 | return -EOPNOTSUPP; | |
685 | ||
686 | /* behaviour for 25G/50G links depends on 25G BASER bit */ | |
687 | speed = MCDI_DWORD(outbuf, GET_LINK_OUT_V2_LINK_SPEED); | |
688 | is_25g = speed == 25000 || speed == 50000; | |
689 | ||
690 | caps = MCDI_DWORD(outbuf, GET_LINK_OUT_V2_CAP); | |
691 | fec->fec = mcdi_fec_caps_to_ethtool(caps, is_25g); | |
692 | /* BASER is never supported on 100G */ | |
693 | if (speed == 100000) | |
694 | fec->fec &= ~ETHTOOL_FEC_BASER; | |
695 | ||
696 | active = MCDI_DWORD(outbuf, GET_LINK_OUT_V2_FEC_TYPE); | |
697 | switch (active) { | |
698 | case MC_CMD_FEC_NONE: | |
699 | fec->active_fec = ETHTOOL_FEC_OFF; | |
700 | break; | |
701 | case MC_CMD_FEC_BASER: | |
702 | fec->active_fec = ETHTOOL_FEC_BASER; | |
703 | break; | |
704 | case MC_CMD_FEC_RS: | |
705 | fec->active_fec = ETHTOOL_FEC_RS; | |
706 | break; | |
707 | default: | |
708 | netif_warn(efx, hw, efx->net_dev, | |
709 | "Firmware reports unrecognised FEC_TYPE %u\n", | |
710 | active); | |
711 | /* We don't know what firmware has picked. AUTO is as good a | |
712 | * "can't happen" value as any other. | |
713 | */ | |
714 | fec->active_fec = ETHTOOL_FEC_AUTO; | |
715 | break; | |
716 | } | |
717 | ||
718 | return 0; | |
719 | } | |
720 | ||
721 | static int efx_mcdi_phy_set_fecparam(struct efx_nic *efx, | |
722 | const struct ethtool_fecparam *fec) | |
723 | { | |
724 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; | |
725 | u32 caps; | |
726 | int rc; | |
727 | ||
728 | /* Work out what efx_mcdi_phy_set_link_ksettings() would produce from | |
729 | * saved advertising bits | |
730 | */ | |
731 | if (test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, efx->link_advertising)) | |
732 | caps = (ethtool_linkset_to_mcdi_cap(efx->link_advertising) | | |
733 | 1 << MC_CMD_PHY_CAP_AN_LBN); | |
734 | else | |
735 | caps = phy_cfg->forced_cap; | |
736 | ||
737 | caps |= ethtool_fec_caps_to_mcdi(fec->fec); | |
738 | rc = efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx), | |
739 | efx->loopback_mode, 0); | |
740 | if (rc) | |
741 | return rc; | |
742 | ||
743 | /* Record the new FEC setting for subsequent set_link calls */ | |
744 | efx->fec_config = fec->fec; | |
745 | return 0; | |
746 | } | |
747 | ||
4f16c073 BH |
748 | static int efx_mcdi_phy_test_alive(struct efx_nic *efx) |
749 | { | |
59cfc479 | 750 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_STATE_OUT_LEN); |
4f16c073 BH |
751 | size_t outlen; |
752 | int rc; | |
753 | ||
754 | BUILD_BUG_ON(MC_CMD_GET_PHY_STATE_IN_LEN != 0); | |
755 | ||
756 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_STATE, NULL, 0, | |
757 | outbuf, sizeof(outbuf), &outlen); | |
758 | if (rc) | |
759 | return rc; | |
760 | ||
761 | if (outlen < MC_CMD_GET_PHY_STATE_OUT_LEN) | |
00bbb4a5 | 762 | return -EIO; |
05a9320f | 763 | if (MCDI_DWORD(outbuf, GET_PHY_STATE_OUT_STATE) != MC_CMD_PHY_STATE_OK) |
4f16c073 BH |
764 | return -EINVAL; |
765 | ||
766 | return 0; | |
767 | } | |
768 | ||
affaf485 SH |
769 | static const char *const mcdi_sft9001_cable_diag_names[] = { |
770 | "cable.pairA.length", | |
771 | "cable.pairB.length", | |
772 | "cable.pairC.length", | |
773 | "cable.pairD.length", | |
774 | "cable.pairA.status", | |
775 | "cable.pairB.status", | |
776 | "cable.pairC.status", | |
777 | "cable.pairD.status", | |
778 | }; | |
779 | ||
780 | static int efx_mcdi_bist(struct efx_nic *efx, unsigned int bist_mode, | |
781 | int *results) | |
782 | { | |
783 | unsigned int retry, i, count = 0; | |
784 | size_t outlen; | |
785 | u32 status; | |
c5bb0e98 BH |
786 | MCDI_DECLARE_BUF(inbuf, MC_CMD_START_BIST_IN_LEN); |
787 | MCDI_DECLARE_BUF(outbuf, MC_CMD_POLL_BIST_OUT_SFT9001_LEN); | |
788 | u8 *ptr; | |
affaf485 SH |
789 | int rc; |
790 | ||
affaf485 | 791 | BUILD_BUG_ON(MC_CMD_START_BIST_OUT_LEN != 0); |
c5bb0e98 BH |
792 | MCDI_SET_DWORD(inbuf, START_BIST_IN_TYPE, bist_mode); |
793 | rc = efx_mcdi_rpc(efx, MC_CMD_START_BIST, | |
794 | inbuf, MC_CMD_START_BIST_IN_LEN, NULL, 0, NULL); | |
affaf485 SH |
795 | if (rc) |
796 | goto out; | |
797 | ||
798 | /* Wait up to 10s for BIST to finish */ | |
799 | for (retry = 0; retry < 100; ++retry) { | |
800 | BUILD_BUG_ON(MC_CMD_POLL_BIST_IN_LEN != 0); | |
801 | rc = efx_mcdi_rpc(efx, MC_CMD_POLL_BIST, NULL, 0, | |
c5bb0e98 | 802 | outbuf, sizeof(outbuf), &outlen); |
affaf485 SH |
803 | if (rc) |
804 | goto out; | |
805 | ||
c5bb0e98 | 806 | status = MCDI_DWORD(outbuf, POLL_BIST_OUT_RESULT); |
affaf485 SH |
807 | if (status != MC_CMD_POLL_BIST_RUNNING) |
808 | goto finished; | |
809 | ||
810 | msleep(100); | |
811 | } | |
812 | ||
813 | rc = -ETIMEDOUT; | |
814 | goto out; | |
815 | ||
816 | finished: | |
817 | results[count++] = (status == MC_CMD_POLL_BIST_PASSED) ? 1 : -1; | |
818 | ||
819 | /* SFT9001 specific cable diagnostics output */ | |
820 | if (efx->phy_type == PHY_TYPE_SFT9001B && | |
821 | (bist_mode == MC_CMD_PHY_BIST_CABLE_SHORT || | |
822 | bist_mode == MC_CMD_PHY_BIST_CABLE_LONG)) { | |
c5bb0e98 | 823 | ptr = MCDI_PTR(outbuf, POLL_BIST_OUT_SFT9001_CABLE_LENGTH_A); |
affaf485 SH |
824 | if (status == MC_CMD_POLL_BIST_PASSED && |
825 | outlen >= MC_CMD_POLL_BIST_OUT_SFT9001_LEN) { | |
826 | for (i = 0; i < 8; i++) { | |
827 | results[count + i] = | |
828 | EFX_DWORD_FIELD(((efx_dword_t *)ptr)[i], | |
829 | EFX_DWORD_0); | |
830 | } | |
831 | } | |
832 | count += 8; | |
833 | } | |
834 | rc = count; | |
835 | ||
836 | out: | |
affaf485 SH |
837 | return rc; |
838 | } | |
839 | ||
840 | static int efx_mcdi_phy_run_tests(struct efx_nic *efx, int *results, | |
841 | unsigned flags) | |
842 | { | |
3bd93035 | 843 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
affaf485 SH |
844 | u32 mode; |
845 | int rc; | |
846 | ||
05a9320f | 847 | if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN)) { |
affaf485 SH |
848 | rc = efx_mcdi_bist(efx, MC_CMD_PHY_BIST, results); |
849 | if (rc < 0) | |
850 | return rc; | |
851 | ||
852 | results += rc; | |
853 | } | |
854 | ||
855 | /* If we support both LONG and SHORT, then run each in response to | |
856 | * break or not. Otherwise, run the one we support */ | |
857 | mode = 0; | |
05a9320f | 858 | if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN)) { |
affaf485 SH |
859 | if ((flags & ETH_TEST_FL_OFFLINE) && |
860 | (phy_cfg->flags & | |
05a9320f | 861 | (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN))) |
affaf485 SH |
862 | mode = MC_CMD_PHY_BIST_CABLE_LONG; |
863 | else | |
864 | mode = MC_CMD_PHY_BIST_CABLE_SHORT; | |
865 | } else if (phy_cfg->flags & | |
05a9320f | 866 | (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN)) |
affaf485 SH |
867 | mode = MC_CMD_PHY_BIST_CABLE_LONG; |
868 | ||
869 | if (mode != 0) { | |
870 | rc = efx_mcdi_bist(efx, mode, results); | |
871 | if (rc < 0) | |
872 | return rc; | |
873 | results += rc; | |
874 | } | |
875 | ||
876 | return 0; | |
877 | } | |
878 | ||
d215697f | 879 | static const char *efx_mcdi_phy_test_name(struct efx_nic *efx, |
880 | unsigned int index) | |
affaf485 | 881 | { |
3bd93035 | 882 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
affaf485 | 883 | |
05a9320f | 884 | if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN)) { |
affaf485 SH |
885 | if (index == 0) |
886 | return "bist"; | |
887 | --index; | |
888 | } | |
889 | ||
05a9320f BH |
890 | if (phy_cfg->flags & ((1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN) | |
891 | (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN))) { | |
affaf485 SH |
892 | if (index == 0) |
893 | return "cable"; | |
894 | --index; | |
895 | ||
896 | if (efx->phy_type == PHY_TYPE_SFT9001B) { | |
897 | if (index < ARRAY_SIZE(mcdi_sft9001_cable_diag_names)) | |
898 | return mcdi_sft9001_cable_diag_names[index]; | |
899 | index -= ARRAY_SIZE(mcdi_sft9001_cable_diag_names); | |
900 | } | |
901 | } | |
902 | ||
903 | return NULL; | |
904 | } | |
905 | ||
9b17010d MH |
906 | #define SFP_PAGE_SIZE 128 |
907 | #define SFF_DIAG_TYPE_OFFSET 92 | |
908 | #define SFF_DIAG_ADDR_CHANGE BIT(2) | |
909 | #define SFF_8079_NUM_PAGES 2 | |
910 | #define SFF_8472_NUM_PAGES 4 | |
911 | #define SFF_8436_NUM_PAGES 5 | |
912 | #define SFF_DMT_LEVEL_OFFSET 94 | |
913 | ||
914 | /** efx_mcdi_phy_get_module_eeprom_page() - Get a single page of module eeprom | |
915 | * @efx: NIC context | |
916 | * @page: EEPROM page number | |
917 | * @data: Destination data pointer | |
918 | * @offset: Offset in page to copy from in to data | |
919 | * @space: Space available in data | |
920 | * | |
921 | * Return: | |
922 | * >=0 - amount of data copied | |
923 | * <0 - error | |
924 | */ | |
925 | static int efx_mcdi_phy_get_module_eeprom_page(struct efx_nic *efx, | |
926 | unsigned int page, | |
927 | u8 *data, ssize_t offset, | |
928 | ssize_t space) | |
c087bd2c | 929 | { |
59cfc479 BH |
930 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_MEDIA_INFO_OUT_LENMAX); |
931 | MCDI_DECLARE_BUF(inbuf, MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN); | |
c087bd2c | 932 | size_t outlen; |
c087bd2c | 933 | unsigned int payload_len; |
c087bd2c | 934 | unsigned int to_copy; |
9b17010d | 935 | int rc; |
c087bd2c | 936 | |
9b17010d MH |
937 | if (offset > SFP_PAGE_SIZE) |
938 | return -EINVAL; | |
c087bd2c | 939 | |
9b17010d | 940 | to_copy = min(space, SFP_PAGE_SIZE - offset); |
c087bd2c | 941 | |
9b17010d MH |
942 | MCDI_SET_DWORD(inbuf, GET_PHY_MEDIA_INFO_IN_PAGE, page); |
943 | rc = efx_mcdi_rpc_quiet(efx, MC_CMD_GET_PHY_MEDIA_INFO, | |
944 | inbuf, sizeof(inbuf), | |
945 | outbuf, sizeof(outbuf), | |
946 | &outlen); | |
c087bd2c | 947 | |
9b17010d MH |
948 | if (rc) |
949 | return rc; | |
c087bd2c | 950 | |
9b17010d MH |
951 | if (outlen < (MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_OFST + |
952 | SFP_PAGE_SIZE)) | |
953 | return -EIO; | |
c087bd2c | 954 | |
9b17010d MH |
955 | payload_len = MCDI_DWORD(outbuf, GET_PHY_MEDIA_INFO_OUT_DATALEN); |
956 | if (payload_len != SFP_PAGE_SIZE) | |
957 | return -EIO; | |
c087bd2c | 958 | |
9b17010d MH |
959 | memcpy(data, MCDI_PTR(outbuf, GET_PHY_MEDIA_INFO_OUT_DATA) + offset, |
960 | to_copy); | |
c087bd2c | 961 | |
9b17010d MH |
962 | return to_copy; |
963 | } | |
c087bd2c | 964 | |
9b17010d MH |
965 | static int efx_mcdi_phy_get_module_eeprom_byte(struct efx_nic *efx, |
966 | unsigned int page, | |
967 | u8 byte) | |
968 | { | |
969 | int rc; | |
970 | u8 data; | |
971 | ||
972 | rc = efx_mcdi_phy_get_module_eeprom_page(efx, page, &data, byte, 1); | |
973 | if (rc == 1) | |
974 | return data; | |
975 | ||
976 | return rc; | |
977 | } | |
978 | ||
979 | static int efx_mcdi_phy_diag_type(struct efx_nic *efx) | |
980 | { | |
981 | /* Page zero of the EEPROM includes the diagnostic type at byte 92. */ | |
982 | return efx_mcdi_phy_get_module_eeprom_byte(efx, 0, | |
983 | SFF_DIAG_TYPE_OFFSET); | |
984 | } | |
985 | ||
986 | static int efx_mcdi_phy_sff_8472_level(struct efx_nic *efx) | |
987 | { | |
988 | /* Page zero of the EEPROM includes the DMT level at byte 94. */ | |
989 | return efx_mcdi_phy_get_module_eeprom_byte(efx, 0, | |
990 | SFF_DMT_LEVEL_OFFSET); | |
991 | } | |
992 | ||
993 | static u32 efx_mcdi_phy_module_type(struct efx_nic *efx) | |
994 | { | |
995 | struct efx_mcdi_phy_data *phy_data = efx->phy_data; | |
996 | ||
997 | if (phy_data->media != MC_CMD_MEDIA_QSFP_PLUS) | |
998 | return phy_data->media; | |
999 | ||
1000 | /* A QSFP+ NIC may actually have an SFP+ module attached. | |
1001 | * The ID is page 0, byte 0. | |
1002 | */ | |
1003 | switch (efx_mcdi_phy_get_module_eeprom_byte(efx, 0, 0)) { | |
1004 | case 0x3: | |
1005 | return MC_CMD_MEDIA_SFP_PLUS; | |
1006 | case 0xc: | |
1007 | case 0xd: | |
1008 | return MC_CMD_MEDIA_QSFP_PLUS; | |
1009 | default: | |
1010 | return 0; | |
1011 | } | |
1012 | } | |
1013 | ||
1014 | static int efx_mcdi_phy_get_module_eeprom(struct efx_nic *efx, | |
1015 | struct ethtool_eeprom *ee, u8 *data) | |
1016 | { | |
1017 | int rc; | |
1018 | ssize_t space_remaining = ee->len; | |
1019 | unsigned int page_off; | |
1020 | bool ignore_missing; | |
1021 | int num_pages; | |
1022 | int page; | |
1023 | ||
1024 | switch (efx_mcdi_phy_module_type(efx)) { | |
1025 | case MC_CMD_MEDIA_SFP_PLUS: | |
1026 | num_pages = efx_mcdi_phy_sff_8472_level(efx) > 0 ? | |
1027 | SFF_8472_NUM_PAGES : SFF_8079_NUM_PAGES; | |
1028 | page = 0; | |
1029 | ignore_missing = false; | |
1030 | break; | |
1031 | case MC_CMD_MEDIA_QSFP_PLUS: | |
1032 | num_pages = SFF_8436_NUM_PAGES; | |
1033 | page = -1; /* We obtain the lower page by asking for -1. */ | |
1034 | ignore_missing = true; /* Ignore missing pages after page 0. */ | |
1035 | break; | |
1036 | default: | |
1037 | return -EOPNOTSUPP; | |
1038 | } | |
1039 | ||
1040 | page_off = ee->offset % SFP_PAGE_SIZE; | |
1041 | page += ee->offset / SFP_PAGE_SIZE; | |
1042 | ||
1043 | while (space_remaining && (page < num_pages)) { | |
1044 | rc = efx_mcdi_phy_get_module_eeprom_page(efx, page, | |
1045 | data, page_off, | |
1046 | space_remaining); | |
1047 | ||
1048 | if (rc > 0) { | |
1049 | space_remaining -= rc; | |
1050 | data += rc; | |
1051 | page_off = 0; | |
1052 | page++; | |
1053 | } else if (rc == 0) { | |
1054 | space_remaining = 0; | |
1055 | } else if (ignore_missing && (page > 0)) { | |
1056 | int intended_size = SFP_PAGE_SIZE - page_off; | |
1057 | ||
1058 | space_remaining -= intended_size; | |
1059 | if (space_remaining < 0) { | |
1060 | space_remaining = 0; | |
1061 | } else { | |
1062 | memset(data, 0, intended_size); | |
1063 | data += intended_size; | |
1064 | page_off = 0; | |
1065 | page++; | |
1066 | rc = 0; | |
1067 | } | |
1068 | } else { | |
1069 | return rc; | |
1070 | } | |
c087bd2c SH |
1071 | } |
1072 | ||
1073 | return 0; | |
1074 | } | |
1075 | ||
1076 | static int efx_mcdi_phy_get_module_info(struct efx_nic *efx, | |
1077 | struct ethtool_modinfo *modinfo) | |
1078 | { | |
9b17010d MH |
1079 | int sff_8472_level; |
1080 | int diag_type; | |
c087bd2c | 1081 | |
9b17010d | 1082 | switch (efx_mcdi_phy_module_type(efx)) { |
c087bd2c | 1083 | case MC_CMD_MEDIA_SFP_PLUS: |
9b17010d MH |
1084 | sff_8472_level = efx_mcdi_phy_sff_8472_level(efx); |
1085 | ||
1086 | /* If we can't read the diagnostics level we have none. */ | |
1087 | if (sff_8472_level < 0) | |
1088 | return -EOPNOTSUPP; | |
1089 | ||
1090 | /* Check if this module requires the (unsupported) address | |
1091 | * change operation. | |
1092 | */ | |
1093 | diag_type = efx_mcdi_phy_diag_type(efx); | |
1094 | ||
1095 | if ((sff_8472_level == 0) || | |
1096 | (diag_type & SFF_DIAG_ADDR_CHANGE)) { | |
1097 | modinfo->type = ETH_MODULE_SFF_8079; | |
1098 | modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; | |
1099 | } else { | |
1100 | modinfo->type = ETH_MODULE_SFF_8472; | |
1101 | modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; | |
1102 | } | |
1103 | break; | |
1104 | ||
1105 | case MC_CMD_MEDIA_QSFP_PLUS: | |
1106 | modinfo->type = ETH_MODULE_SFF_8436; | |
1107 | modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN; | |
1108 | break; | |
1109 | ||
c087bd2c SH |
1110 | default: |
1111 | return -EOPNOTSUPP; | |
1112 | } | |
9b17010d MH |
1113 | |
1114 | return 0; | |
c087bd2c SH |
1115 | } |
1116 | ||
43f775b2 | 1117 | static const struct efx_phy_operations efx_mcdi_phy_ops = { |
afd4aea0 | 1118 | .probe = efx_mcdi_phy_probe, |
9c636baf | 1119 | .init = efx_port_dummy_op_int, |
43f775b2 | 1120 | .reconfigure = efx_mcdi_port_reconfigure, |
afd4aea0 | 1121 | .poll = efx_mcdi_phy_poll, |
ff3b00a0 SH |
1122 | .fini = efx_port_dummy_op_void, |
1123 | .remove = efx_mcdi_phy_remove, | |
7cafe8f8 PR |
1124 | .get_link_ksettings = efx_mcdi_phy_get_link_ksettings, |
1125 | .set_link_ksettings = efx_mcdi_phy_set_link_ksettings, | |
7f61e6c6 EC |
1126 | .get_fecparam = efx_mcdi_phy_get_fecparam, |
1127 | .set_fecparam = efx_mcdi_phy_set_fecparam, | |
4f16c073 | 1128 | .test_alive = efx_mcdi_phy_test_alive, |
affaf485 SH |
1129 | .run_tests = efx_mcdi_phy_run_tests, |
1130 | .test_name = efx_mcdi_phy_test_name, | |
c087bd2c SH |
1131 | .get_module_eeprom = efx_mcdi_phy_get_module_eeprom, |
1132 | .get_module_info = efx_mcdi_phy_get_module_info, | |
afd4aea0 | 1133 | }; |
43f775b2 | 1134 | |
8127d661 BH |
1135 | u32 efx_mcdi_phy_get_caps(struct efx_nic *efx) |
1136 | { | |
1137 | struct efx_mcdi_phy_data *phy_data = efx->phy_data; | |
1138 | ||
1139 | return phy_data->supported_cap; | |
1140 | } | |
1141 | ||
43f775b2 BH |
1142 | static unsigned int efx_mcdi_event_link_speed[] = { |
1143 | [MCDI_EVENT_LINKCHANGE_SPEED_100M] = 100, | |
1144 | [MCDI_EVENT_LINKCHANGE_SPEED_1G] = 1000, | |
1145 | [MCDI_EVENT_LINKCHANGE_SPEED_10G] = 10000, | |
9a12a306 | 1146 | [MCDI_EVENT_LINKCHANGE_SPEED_40G] = 40000, |
702b3d51 EC |
1147 | [MCDI_EVENT_LINKCHANGE_SPEED_25G] = 25000, |
1148 | [MCDI_EVENT_LINKCHANGE_SPEED_50G] = 50000, | |
1149 | [MCDI_EVENT_LINKCHANGE_SPEED_100G] = 100000, | |
43f775b2 BH |
1150 | }; |
1151 | ||
1152 | void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev) | |
1153 | { | |
1154 | u32 flags, fcntl, speed, lpa; | |
1155 | ||
1156 | speed = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_SPEED); | |
e01b16a7 | 1157 | EFX_WARN_ON_PARANOID(speed >= ARRAY_SIZE(efx_mcdi_event_link_speed)); |
43f775b2 BH |
1158 | speed = efx_mcdi_event_link_speed[speed]; |
1159 | ||
1160 | flags = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LINK_FLAGS); | |
1161 | fcntl = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_FCNTL); | |
1162 | lpa = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LP_CAP); | |
1163 | ||
1164 | /* efx->link_state is only modified by efx_mcdi_phy_get_link(), | |
1165 | * which is only run after flushing the event queues. Therefore, it | |
1166 | * is safe to modify the link state outside of the mac_lock here. | |
1167 | */ | |
1168 | efx_mcdi_phy_decode_link(efx, &efx->link_state, speed, flags, fcntl); | |
1169 | ||
1170 | efx_mcdi_phy_check_fcntl(efx, lpa); | |
1171 | ||
1172 | efx_link_status_changed(efx); | |
1173 | } | |
1174 | ||
1175 | int efx_mcdi_set_mac(struct efx_nic *efx) | |
1176 | { | |
964e6135 | 1177 | u32 fcntl; |
43f775b2 BH |
1178 | MCDI_DECLARE_BUF(cmdbytes, MC_CMD_SET_MAC_IN_LEN); |
1179 | ||
1180 | BUILD_BUG_ON(MC_CMD_SET_MAC_OUT_LEN != 0); | |
1181 | ||
910c8789 | 1182 | /* This has no effect on EF10 */ |
cd84ff4d EC |
1183 | ether_addr_copy(MCDI_PTR(cmdbytes, SET_MAC_IN_ADDR), |
1184 | efx->net_dev->dev_addr); | |
43f775b2 BH |
1185 | |
1186 | MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_MTU, | |
1187 | EFX_MAX_FRAME_LEN(efx->net_dev->mtu)); | |
1188 | MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_DRAIN, 0); | |
1189 | ||
964e6135 BH |
1190 | /* Set simple MAC filter for Siena */ |
1191 | MCDI_POPULATE_DWORD_1(cmdbytes, SET_MAC_IN_REJECT, | |
1192 | SET_MAC_IN_REJECT_UNCST, efx->unicast_filter); | |
43f775b2 | 1193 | |
6978729f EC |
1194 | MCDI_POPULATE_DWORD_1(cmdbytes, SET_MAC_IN_FLAGS, |
1195 | SET_MAC_IN_FLAG_INCLUDE_FCS, | |
1196 | !!(efx->net_dev->features & NETIF_F_RXFCS)); | |
1197 | ||
43f775b2 BH |
1198 | switch (efx->wanted_fc) { |
1199 | case EFX_FC_RX | EFX_FC_TX: | |
1200 | fcntl = MC_CMD_FCNTL_BIDIR; | |
1201 | break; | |
1202 | case EFX_FC_RX: | |
1203 | fcntl = MC_CMD_FCNTL_RESPOND; | |
1204 | break; | |
1205 | default: | |
1206 | fcntl = MC_CMD_FCNTL_OFF; | |
1207 | break; | |
1208 | } | |
1209 | if (efx->wanted_fc & EFX_FC_AUTO) | |
1210 | fcntl = MC_CMD_FCNTL_AUTO; | |
1211 | if (efx->fc_disable) | |
1212 | fcntl = MC_CMD_FCNTL_OFF; | |
1213 | ||
1214 | MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_FCNTL, fcntl); | |
1215 | ||
1216 | return efx_mcdi_rpc(efx, MC_CMD_SET_MAC, cmdbytes, sizeof(cmdbytes), | |
1217 | NULL, 0, NULL); | |
1218 | } | |
1219 | ||
1220 | bool efx_mcdi_mac_check_fault(struct efx_nic *efx) | |
1221 | { | |
1222 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); | |
1223 | size_t outlength; | |
1224 | int rc; | |
1225 | ||
1226 | BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); | |
1227 | ||
1228 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, | |
1229 | outbuf, sizeof(outbuf), &outlength); | |
1e0b8120 | 1230 | if (rc) |
43f775b2 | 1231 | return true; |
43f775b2 BH |
1232 | |
1233 | return MCDI_DWORD(outbuf, GET_LINK_OUT_MAC_FAULT) != 0; | |
1234 | } | |
1235 | ||
f8f3b5ae JC |
1236 | enum efx_stats_action { |
1237 | EFX_STATS_ENABLE, | |
1238 | EFX_STATS_DISABLE, | |
1239 | EFX_STATS_PULL, | |
1240 | }; | |
1241 | ||
1242 | static int efx_mcdi_mac_stats(struct efx_nic *efx, | |
1243 | enum efx_stats_action action, int clear) | |
43f775b2 BH |
1244 | { |
1245 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAC_STATS_IN_LEN); | |
1246 | int rc; | |
f8f3b5ae JC |
1247 | int change = action == EFX_STATS_PULL ? 0 : 1; |
1248 | int enable = action == EFX_STATS_ENABLE ? 1 : 0; | |
1249 | int period = action == EFX_STATS_ENABLE ? 1000 : 0; | |
1250 | dma_addr_t dma_addr = efx->stats_buffer.dma_addr; | |
1251 | u32 dma_len = action != EFX_STATS_DISABLE ? | |
c1be4821 | 1252 | efx->num_mac_stats * sizeof(u64) : 0; |
43f775b2 BH |
1253 | |
1254 | BUILD_BUG_ON(MC_CMD_MAC_STATS_OUT_DMA_LEN != 0); | |
1255 | ||
1256 | MCDI_SET_QWORD(inbuf, MAC_STATS_IN_DMA_ADDR, dma_addr); | |
f5253d92 BH |
1257 | MCDI_POPULATE_DWORD_7(inbuf, MAC_STATS_IN_CMD, |
1258 | MAC_STATS_IN_DMA, !!enable, | |
1259 | MAC_STATS_IN_CLEAR, clear, | |
f8f3b5ae JC |
1260 | MAC_STATS_IN_PERIODIC_CHANGE, change, |
1261 | MAC_STATS_IN_PERIODIC_ENABLE, enable, | |
f5253d92 BH |
1262 | MAC_STATS_IN_PERIODIC_CLEAR, 0, |
1263 | MAC_STATS_IN_PERIODIC_NOEVENT, 1, | |
1264 | MAC_STATS_IN_PERIOD_MS, period); | |
43f775b2 | 1265 | MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_LEN, dma_len); |
61deee96 BK |
1266 | |
1267 | if (efx_nic_rev(efx) >= EFX_REV_HUNT_A0) { | |
1268 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
1269 | ||
1270 | MCDI_SET_DWORD(inbuf, MAC_STATS_IN_PORT_ID, nic_data->vport_id); | |
1271 | } | |
43f775b2 | 1272 | |
6dd4859b DP |
1273 | rc = efx_mcdi_rpc_quiet(efx, MC_CMD_MAC_STATS, inbuf, sizeof(inbuf), |
1274 | NULL, 0, NULL); | |
1275 | /* Expect ENOENT if DMA queues have not been set up */ | |
1276 | if (rc && (rc != -ENOENT || atomic_read(&efx->active_queues))) | |
1277 | efx_mcdi_display_error(efx, MC_CMD_MAC_STATS, sizeof(inbuf), | |
1278 | NULL, 0, rc); | |
43f775b2 BH |
1279 | return rc; |
1280 | } | |
1281 | ||
1282 | void efx_mcdi_mac_start_stats(struct efx_nic *efx) | |
1283 | { | |
1284 | __le64 *dma_stats = efx->stats_buffer.addr; | |
1285 | ||
c1be4821 | 1286 | dma_stats[efx->num_mac_stats - 1] = EFX_MC_STATS_GENERATION_INVALID; |
43f775b2 | 1287 | |
f8f3b5ae | 1288 | efx_mcdi_mac_stats(efx, EFX_STATS_ENABLE, 0); |
43f775b2 BH |
1289 | } |
1290 | ||
1291 | void efx_mcdi_mac_stop_stats(struct efx_nic *efx) | |
1292 | { | |
f8f3b5ae JC |
1293 | efx_mcdi_mac_stats(efx, EFX_STATS_DISABLE, 0); |
1294 | } | |
1295 | ||
1296 | #define EFX_MAC_STATS_WAIT_US 100 | |
1297 | #define EFX_MAC_STATS_WAIT_ATTEMPTS 10 | |
1298 | ||
1299 | void efx_mcdi_mac_pull_stats(struct efx_nic *efx) | |
1300 | { | |
1301 | __le64 *dma_stats = efx->stats_buffer.addr; | |
1302 | int attempts = EFX_MAC_STATS_WAIT_ATTEMPTS; | |
1303 | ||
c1be4821 | 1304 | dma_stats[efx->num_mac_stats - 1] = EFX_MC_STATS_GENERATION_INVALID; |
f8f3b5ae JC |
1305 | efx_mcdi_mac_stats(efx, EFX_STATS_PULL, 0); |
1306 | ||
c1be4821 | 1307 | while (dma_stats[efx->num_mac_stats - 1] == |
f8f3b5ae JC |
1308 | EFX_MC_STATS_GENERATION_INVALID && |
1309 | attempts-- != 0) | |
1310 | udelay(EFX_MAC_STATS_WAIT_US); | |
43f775b2 BH |
1311 | } |
1312 | ||
1313 | int efx_mcdi_port_probe(struct efx_nic *efx) | |
1314 | { | |
1315 | int rc; | |
1316 | ||
1317 | /* Hook in PHY operations table */ | |
1318 | efx->phy_op = &efx_mcdi_phy_ops; | |
1319 | ||
1320 | /* Set up MDIO structure for PHY */ | |
1321 | efx->mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; | |
1322 | efx->mdio.mdio_read = efx_mcdi_mdio_read; | |
1323 | efx->mdio.mdio_write = efx_mcdi_mdio_write; | |
1324 | ||
1325 | /* Fill out MDIO structure, loopback modes, and initial link state */ | |
1326 | rc = efx->phy_op->probe(efx); | |
1327 | if (rc != 0) | |
1328 | return rc; | |
1329 | ||
1330 | /* Allocate buffer for stats */ | |
1331 | rc = efx_nic_alloc_buffer(efx, &efx->stats_buffer, | |
c1be4821 | 1332 | efx->num_mac_stats * sizeof(u64), GFP_KERNEL); |
43f775b2 BH |
1333 | if (rc) |
1334 | return rc; | |
1335 | netif_dbg(efx, probe, efx->net_dev, | |
1336 | "stats buffer at %llx (virt %p phys %llx)\n", | |
1337 | (u64)efx->stats_buffer.dma_addr, | |
1338 | efx->stats_buffer.addr, | |
1339 | (u64)virt_to_phys(efx->stats_buffer.addr)); | |
1340 | ||
f8f3b5ae | 1341 | efx_mcdi_mac_stats(efx, EFX_STATS_DISABLE, 1); |
43f775b2 BH |
1342 | |
1343 | return 0; | |
1344 | } | |
1345 | ||
1346 | void efx_mcdi_port_remove(struct efx_nic *efx) | |
1347 | { | |
1348 | efx->phy_op->remove(efx); | |
1349 | efx_nic_free_buffer(efx, &efx->stats_buffer); | |
1350 | } | |
8127d661 BH |
1351 | |
1352 | /* Get physical port number (EF10 only; on Siena it is same as PF number) */ | |
1353 | int efx_mcdi_port_get_number(struct efx_nic *efx) | |
1354 | { | |
1355 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PORT_ASSIGNMENT_OUT_LEN); | |
1356 | int rc; | |
1357 | ||
1358 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_PORT_ASSIGNMENT, NULL, 0, | |
1359 | outbuf, sizeof(outbuf), NULL); | |
1360 | if (rc) | |
1361 | return rc; | |
1362 | ||
1363 | return MCDI_DWORD(outbuf, GET_PORT_ASSIGNMENT_OUT_PORT); | |
1364 | } |