]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blame - drivers/net/ethernet/sfc/mcdi_port.c
projects / mirror_ubuntu-artful-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
sfc: Add new sensor names
[mirror_ubuntu-artful-kernel.git] / drivers / net / ethernet / sfc / mcdi_port.c
CommitLineData
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
BH		 15#include "efx.h"
16#include "phy.h"
17#include "mcdi.h"
18#include "mcdi_pcol.h"
affaf485
SH		 19#include "nic.h"
20#include "selftest.h"
afd4aea0 21
3bd93035 22struct efx_mcdi_phy_data {
afd4aea0
BH		 23 u32 flags;
24 u32 type;
25 u32 supported_cap;
26 u32 channel;
27 u32 port;
28 u32 stats_mask;
29 u8 name[20];
30 u32 media;
31 u32 mmd_mask;
32 u8 revision[20];
33 u32 forced_cap;
34};
35
36static int
3bd93035 37efx_mcdi_get_phy_cfg(struct efx_nic *efx, struct efx_mcdi_phy_data *cfg)
afd4aea0 38{
59cfc479 39 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_CFG_OUT_LEN);
afd4aea0
BH		 40 size_t outlen;
41 int rc;
42
43 BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_IN_LEN != 0);
44 BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_OUT_NAME_LEN != sizeof(cfg->name));
45
46 rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_CFG, NULL, 0,
47 outbuf, sizeof(outbuf), &outlen);
48 if (rc)
49 goto fail;
50
51 if (outlen < MC_CMD_GET_PHY_CFG_OUT_LEN) {
00bbb4a5 52 rc = -EIO;
afd4aea0
BH		 53 goto fail;
54 }
55
56 cfg->flags = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_FLAGS);
57 cfg->type = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_TYPE);
58 cfg->supported_cap =
59 MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_SUPPORTED_CAP);
60 cfg->channel = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_CHANNEL);
61 cfg->port = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_PRT);
62 cfg->stats_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_STATS_MASK);
63 memcpy(cfg->name, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_NAME),
64 sizeof(cfg->name));
65 cfg->media = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MEDIA_TYPE);
66 cfg->mmd_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MMD_MASK);
67 memcpy(cfg->revision, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_REVISION),
68 sizeof(cfg->revision));
69
70 return 0;
71
72fail:
62776d03 73 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
afd4aea0
BH		 74 return rc;
75}
76
77static int efx_mcdi_set_link(struct efx_nic *efx, u32 capabilities,
78 u32 flags, u32 loopback_mode,
79 u32 loopback_speed)
80{
59cfc479 81 MCDI_DECLARE_BUF(inbuf, MC_CMD_SET_LINK_IN_LEN);
afd4aea0
BH		 82 int rc;
83
84 BUILD_BUG_ON(MC_CMD_SET_LINK_OUT_LEN != 0);
85
86 MCDI_SET_DWORD(inbuf, SET_LINK_IN_CAP, capabilities);
87 MCDI_SET_DWORD(inbuf, SET_LINK_IN_FLAGS, flags);
88 MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_MODE, loopback_mode);
89 MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_SPEED, loopback_speed);
90
91 rc = efx_mcdi_rpc(efx, MC_CMD_SET_LINK, inbuf, sizeof(inbuf),
92 NULL, 0, NULL);
93 if (rc)
94 goto fail;
95
96 return 0;
97
98fail:
62776d03 99 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
afd4aea0
BH		 100 return rc;
101}
102
103static int efx_mcdi_loopback_modes(struct efx_nic *efx, u64 *loopback_modes)
104{
59cfc479 105 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LOOPBACK_MODES_OUT_LEN);
afd4aea0
BH		 106 size_t outlen;
107 int rc;
108
109 rc = efx_mcdi_rpc(efx, MC_CMD_GET_LOOPBACK_MODES, NULL, 0,
110 outbuf, sizeof(outbuf), &outlen);
111 if (rc)
112 goto fail;
113
f2b0befd
BH		 114 if (outlen < (MC_CMD_GET_LOOPBACK_MODES_OUT_SUGGESTED_OFST +
115 MC_CMD_GET_LOOPBACK_MODES_OUT_SUGGESTED_LEN)) {
00bbb4a5 116 rc = -EIO;
afd4aea0
BH		 117 goto fail;
118 }
119
05a9320f 120 *loopback_modes = MCDI_QWORD(outbuf, GET_LOOPBACK_MODES_OUT_SUGGESTED);
afd4aea0
BH		 121
122 return 0;
123
124fail:
62776d03 125 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
afd4aea0
BH		 126 return rc;
127}
128
43f775b2
BH		 129static int efx_mcdi_mdio_read(struct net_device *net_dev,
130 int prtad, int devad, u16 addr)
afd4aea0 131{
43f775b2 132 struct efx_nic *efx = netdev_priv(net_dev);
59cfc479
BH		 133 MCDI_DECLARE_BUF(inbuf, MC_CMD_MDIO_READ_IN_LEN);
134 MCDI_DECLARE_BUF(outbuf, MC_CMD_MDIO_READ_OUT_LEN);
afd4aea0
BH		 135 size_t outlen;
136 int rc;
137
43f775b2 138 MCDI_SET_DWORD(inbuf, MDIO_READ_IN_BUS, efx->mdio_bus);
afd4aea0
BH		 139 MCDI_SET_DWORD(inbuf, MDIO_READ_IN_PRTAD, prtad);
140 MCDI_SET_DWORD(inbuf, MDIO_READ_IN_DEVAD, devad);
141 MCDI_SET_DWORD(inbuf, MDIO_READ_IN_ADDR, addr);
142
143 rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_READ, inbuf, sizeof(inbuf),
144 outbuf, sizeof(outbuf), &outlen);
145 if (rc)
146 goto fail;
147
43f775b2
BH		 148 if (MCDI_DWORD(outbuf, MDIO_READ_OUT_STATUS) !=
149 MC_CMD_MDIO_STATUS_GOOD)
150 return -EIO;
151
152 return (u16)MCDI_DWORD(outbuf, MDIO_READ_OUT_VALUE);
afd4aea0
BH		 153
154fail:
62776d03 155 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
afd4aea0
BH		 156 return rc;
157}
158
43f775b2
BH		 159static int efx_mcdi_mdio_write(struct net_device *net_dev,
160 int prtad, int devad, u16 addr, u16 value)
afd4aea0 161{
43f775b2 162 struct efx_nic *efx = netdev_priv(net_dev);
59cfc479
BH		 163 MCDI_DECLARE_BUF(inbuf, MC_CMD_MDIO_WRITE_IN_LEN);
164 MCDI_DECLARE_BUF(outbuf, MC_CMD_MDIO_WRITE_OUT_LEN);
afd4aea0
BH		 165 size_t outlen;
166 int rc;
167
43f775b2 168 MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_BUS, efx->mdio_bus);
afd4aea0
BH		 169 MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_PRTAD, prtad);
170 MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_DEVAD, devad);
171 MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_ADDR, addr);
172 MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_VALUE, value);
173
174 rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_WRITE, inbuf, sizeof(inbuf),
175 outbuf, sizeof(outbuf), &outlen);
176 if (rc)
177 goto fail;
178
43f775b2
BH		 179 if (MCDI_DWORD(outbuf, MDIO_WRITE_OUT_STATUS) !=
180 MC_CMD_MDIO_STATUS_GOOD)
181 return -EIO;
182
afd4aea0
BH		 183 return 0;
184
185fail:
62776d03 186 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
afd4aea0
BH		 187 return rc;
188}
189
190static u32 mcdi_to_ethtool_cap(u32 media, u32 cap)
191{
192 u32 result = 0;
193
194 switch (media) {
195 case MC_CMD_MEDIA_KX4:
196 result |= SUPPORTED_Backplane;
197 if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN))
198 result |= SUPPORTED_1000baseKX_Full;
199 if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN))
200 result |= SUPPORTED_10000baseKX4_Full;
201 break;
202
203 case MC_CMD_MEDIA_XFP:
204 case MC_CMD_MEDIA_SFP_PLUS:
205 result |= SUPPORTED_FIBRE;
206 break;
207
208 case MC_CMD_MEDIA_BASE_T:
209 result |= SUPPORTED_TP;
210 if (cap & (1 << MC_CMD_PHY_CAP_10HDX_LBN))
211 result |= SUPPORTED_10baseT_Half;
212 if (cap & (1 << MC_CMD_PHY_CAP_10FDX_LBN))
213 result |= SUPPORTED_10baseT_Full;
214 if (cap & (1 << MC_CMD_PHY_CAP_100HDX_LBN))
215 result |= SUPPORTED_100baseT_Half;
216 if (cap & (1 << MC_CMD_PHY_CAP_100FDX_LBN))
217 result |= SUPPORTED_100baseT_Full;
218 if (cap & (1 << MC_CMD_PHY_CAP_1000HDX_LBN))
219 result |= SUPPORTED_1000baseT_Half;
220 if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN))
221 result |= SUPPORTED_1000baseT_Full;
222 if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN))
223 result |= SUPPORTED_10000baseT_Full;
224 break;
225 }
226
227 if (cap & (1 << MC_CMD_PHY_CAP_PAUSE_LBN))
228 result |= SUPPORTED_Pause;
229 if (cap & (1 << MC_CMD_PHY_CAP_ASYM_LBN))
230 result |= SUPPORTED_Asym_Pause;
231 if (cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
232 result |= SUPPORTED_Autoneg;
233
234 return result;
235}
236
237static u32 ethtool_to_mcdi_cap(u32 cap)
238{
239 u32 result = 0;
240
241 if (cap & SUPPORTED_10baseT_Half)
242 result |= (1 << MC_CMD_PHY_CAP_10HDX_LBN);
243 if (cap & SUPPORTED_10baseT_Full)
244 result |= (1 << MC_CMD_PHY_CAP_10FDX_LBN);
245 if (cap & SUPPORTED_100baseT_Half)
246 result |= (1 << MC_CMD_PHY_CAP_100HDX_LBN);
247 if (cap & SUPPORTED_100baseT_Full)
248 result |= (1 << MC_CMD_PHY_CAP_100FDX_LBN);
249 if (cap & SUPPORTED_1000baseT_Half)
250 result |= (1 << MC_CMD_PHY_CAP_1000HDX_LBN);
251 if (cap & (SUPPORTED_1000baseT_Full | SUPPORTED_1000baseKX_Full))
252 result |= (1 << MC_CMD_PHY_CAP_1000FDX_LBN);
253 if (cap & (SUPPORTED_10000baseT_Full | SUPPORTED_10000baseKX4_Full))
254 result |= (1 << MC_CMD_PHY_CAP_10000FDX_LBN);
255 if (cap & SUPPORTED_Pause)
256 result |= (1 << MC_CMD_PHY_CAP_PAUSE_LBN);
257 if (cap & SUPPORTED_Asym_Pause)
258 result |= (1 << MC_CMD_PHY_CAP_ASYM_LBN);
259 if (cap & SUPPORTED_Autoneg)
260 result |= (1 << MC_CMD_PHY_CAP_AN_LBN);
261
262 return result;
263}
264
265static u32 efx_get_mcdi_phy_flags(struct efx_nic *efx)
266{
3bd93035 267 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
afd4aea0
BH		 268 enum efx_phy_mode mode, supported;
269 u32 flags;
270
271 /* TODO: Advertise the capabilities supported by this PHY */
272 supported = 0;
05a9320f 273 if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_TXDIS_LBN))
afd4aea0 274 supported |= PHY_MODE_TX_DISABLED;
05a9320f 275 if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_LOWPOWER_LBN))
afd4aea0 276 supported |= PHY_MODE_LOW_POWER;
05a9320f 277 if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_POWEROFF_LBN))
afd4aea0
BH		 278 supported |= PHY_MODE_OFF;
279
280 mode = efx->phy_mode & supported;
281
282 flags = 0;
283 if (mode & PHY_MODE_TX_DISABLED)
05a9320f 284 flags |= (1 << MC_CMD_SET_LINK_IN_TXDIS_LBN);
afd4aea0 285 if (mode & PHY_MODE_LOW_POWER)
05a9320f 286 flags |= (1 << MC_CMD_SET_LINK_IN_LOWPOWER_LBN);
afd4aea0 287 if (mode & PHY_MODE_OFF)
05a9320f 288 flags |= (1 << MC_CMD_SET_LINK_IN_POWEROFF_LBN);
afd4aea0
BH		 289
290 return flags;
291}
292
293static u32 mcdi_to_ethtool_media(u32 media)
294{
295 switch (media) {
296 case MC_CMD_MEDIA_XAUI:
297 case MC_CMD_MEDIA_CX4:
298 case MC_CMD_MEDIA_KX4:
299 return PORT_OTHER;
300
301 case MC_CMD_MEDIA_XFP:
302 case MC_CMD_MEDIA_SFP_PLUS:
303 return PORT_FIBRE;
304
305 case MC_CMD_MEDIA_BASE_T:
306 return PORT_TP;
307
308 default:
309 return PORT_OTHER;
310 }
311}
312
43f775b2
BH		 313static void efx_mcdi_phy_decode_link(struct efx_nic *efx,
314 struct efx_link_state *link_state,
315 u32 speed, u32 flags, u32 fcntl)
316{
317 switch (fcntl) {
318 case MC_CMD_FCNTL_AUTO:
319 WARN_ON(1); /* This is not a link mode */
320 link_state->fc = EFX_FC_AUTO | EFX_FC_TX | EFX_FC_RX;
321 break;
322 case MC_CMD_FCNTL_BIDIR:
323 link_state->fc = EFX_FC_TX | EFX_FC_RX;
324 break;
325 case MC_CMD_FCNTL_RESPOND:
326 link_state->fc = EFX_FC_RX;
327 break;
328 default:
329 WARN_ON(1);
330 case MC_CMD_FCNTL_OFF:
331 link_state->fc = 0;
332 break;
333 }
334
335 link_state->up = !!(flags & (1 << MC_CMD_GET_LINK_OUT_LINK_UP_LBN));
336 link_state->fd = !!(flags & (1 << MC_CMD_GET_LINK_OUT_FULL_DUPLEX_LBN));
337 link_state->speed = speed;
338}
339
afd4aea0
BH		 340static int efx_mcdi_phy_probe(struct efx_nic *efx)
341{
3bd93035 342 struct efx_mcdi_phy_data *phy_data;
59cfc479 343 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN);
ff3b00a0 344 u32 caps;
afd4aea0
BH		 345 int rc;
346
ff3b00a0
SH		 347 /* Initialise and populate phy_data */
348 phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL);
349 if (phy_data == NULL)
350 return -ENOMEM;
351
352 rc = efx_mcdi_get_phy_cfg(efx, phy_data);
afd4aea0
BH		 353 if (rc != 0)
354 goto fail;
355
ff3b00a0
SH		 356 /* Read initial link advertisement */
357 BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
358 rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
359 outbuf, sizeof(outbuf), NULL);
360 if (rc)
361 goto fail;
362
363 /* Fill out nic state */
364 efx->phy_data = phy_data;
365 efx->phy_type = phy_data->type;
afd4aea0 366
ff3b00a0
SH		 367 efx->mdio_bus = phy_data->channel;
368 efx->mdio.prtad = phy_data->port;
369 efx->mdio.mmds = phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22);
afd4aea0 370 efx->mdio.mode_support = 0;
ff3b00a0 371 if (phy_data->mmd_mask & (1 << MC_CMD_MMD_CLAUSE22))
afd4aea0 372 efx->mdio.mode_support |= MDIO_SUPPORTS_C22;
ff3b00a0 373 if (phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22))
afd4aea0
BH		 374 efx->mdio.mode_support |= MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22;
375
ff3b00a0
SH		 376 caps = MCDI_DWORD(outbuf, GET_LINK_OUT_CAP);
377 if (caps & (1 << MC_CMD_PHY_CAP_AN_LBN))
378 efx->link_advertising =
379 mcdi_to_ethtool_cap(phy_data->media, caps);
380 else
381 phy_data->forced_cap = caps;
382
afd4aea0
BH		 383 /* Assert that we can map efx -> mcdi loopback modes */
384 BUILD_BUG_ON(LOOPBACK_NONE != MC_CMD_LOOPBACK_NONE);
385 BUILD_BUG_ON(LOOPBACK_DATA != MC_CMD_LOOPBACK_DATA);
386 BUILD_BUG_ON(LOOPBACK_GMAC != MC_CMD_LOOPBACK_GMAC);
387 BUILD_BUG_ON(LOOPBACK_XGMII != MC_CMD_LOOPBACK_XGMII);
388 BUILD_BUG_ON(LOOPBACK_XGXS != MC_CMD_LOOPBACK_XGXS);
389 BUILD_BUG_ON(LOOPBACK_XAUI != MC_CMD_LOOPBACK_XAUI);
390 BUILD_BUG_ON(LOOPBACK_GMII != MC_CMD_LOOPBACK_GMII);
391 BUILD_BUG_ON(LOOPBACK_SGMII != MC_CMD_LOOPBACK_SGMII);
392 BUILD_BUG_ON(LOOPBACK_XGBR != MC_CMD_LOOPBACK_XGBR);
393 BUILD_BUG_ON(LOOPBACK_XFI != MC_CMD_LOOPBACK_XFI);
394 BUILD_BUG_ON(LOOPBACK_XAUI_FAR != MC_CMD_LOOPBACK_XAUI_FAR);
395 BUILD_BUG_ON(LOOPBACK_GMII_FAR != MC_CMD_LOOPBACK_GMII_FAR);
396 BUILD_BUG_ON(LOOPBACK_SGMII_FAR != MC_CMD_LOOPBACK_SGMII_FAR);
397 BUILD_BUG_ON(LOOPBACK_XFI_FAR != MC_CMD_LOOPBACK_XFI_FAR);
398 BUILD_BUG_ON(LOOPBACK_GPHY != MC_CMD_LOOPBACK_GPHY);
399 BUILD_BUG_ON(LOOPBACK_PHYXS != MC_CMD_LOOPBACK_PHYXS);
400 BUILD_BUG_ON(LOOPBACK_PCS != MC_CMD_LOOPBACK_PCS);
401 BUILD_BUG_ON(LOOPBACK_PMAPMD != MC_CMD_LOOPBACK_PMAPMD);
402 BUILD_BUG_ON(LOOPBACK_XPORT != MC_CMD_LOOPBACK_XPORT);
403 BUILD_BUG_ON(LOOPBACK_XGMII_WS != MC_CMD_LOOPBACK_XGMII_WS);
404 BUILD_BUG_ON(LOOPBACK_XAUI_WS != MC_CMD_LOOPBACK_XAUI_WS);
405 BUILD_BUG_ON(LOOPBACK_XAUI_WS_FAR != MC_CMD_LOOPBACK_XAUI_WS_FAR);
406 BUILD_BUG_ON(LOOPBACK_XAUI_WS_NEAR != MC_CMD_LOOPBACK_XAUI_WS_NEAR);
407 BUILD_BUG_ON(LOOPBACK_GMII_WS != MC_CMD_LOOPBACK_GMII_WS);
408 BUILD_BUG_ON(LOOPBACK_XFI_WS != MC_CMD_LOOPBACK_XFI_WS);
409 BUILD_BUG_ON(LOOPBACK_XFI_WS_FAR != MC_CMD_LOOPBACK_XFI_WS_FAR);
410 BUILD_BUG_ON(LOOPBACK_PHYXS_WS != MC_CMD_LOOPBACK_PHYXS_WS);
411
412 rc = efx_mcdi_loopback_modes(efx, &efx->loopback_modes);
413 if (rc != 0)
414 goto fail;
415 /* The MC indicates that LOOPBACK_NONE is a valid loopback mode,
416 * but by convention we don't */
417 efx->loopback_modes &= ~(1 << LOOPBACK_NONE);
418
7a6b8f6f
SH		 419 /* Set the initial link mode */
420 efx_mcdi_phy_decode_link(
421 efx, &efx->link_state,
422 MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED),
423 MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS),
424 MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL));
425
426 /* Default to Autonegotiated flow control if the PHY supports it */
427 efx->wanted_fc = EFX_FC_RX | EFX_FC_TX;
428 if (phy_data->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
429 efx->wanted_fc |= EFX_FC_AUTO;
cffe9d4c 430 efx_link_set_wanted_fc(efx, efx->wanted_fc);
7a6b8f6f 431
afd4aea0
BH		 432 return 0;
433
434fail:
435 kfree(phy_data);
436 return rc;
437}
438
43f775b2 439int efx_mcdi_port_reconfigure(struct efx_nic *efx)
afd4aea0 440{
3bd93035 441 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
afd4aea0
BH		 442 u32 caps = (efx->link_advertising ?
443 ethtool_to_mcdi_cap(efx->link_advertising) :
444 phy_cfg->forced_cap);
445
446 return efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx),
447 efx->loopback_mode, 0);
448}
449
afd4aea0
BH		 450/* Verify that the forced flow control settings (!EFX_FC_AUTO) are
451 * supported by the link partner. Warn the user if this isn't the case
452 */
43f775b2 453static void efx_mcdi_phy_check_fcntl(struct efx_nic *efx, u32 lpa)
afd4aea0 454{
3bd93035 455 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
afd4aea0
BH		 456 u32 rmtadv;
457
25985edc 458 /* The link partner capabilities are only relevant if the
afd4aea0 459 * link supports flow control autonegotiation */
7a6b8f6f 460 if (~phy_cfg->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
afd4aea0
BH		 461 return;
462
463 /* If flow control autoneg is supported and enabled, then fine */
464 if (efx->wanted_fc & EFX_FC_AUTO)
465 return;
466
467 rmtadv = 0;
468 if (lpa & (1 << MC_CMD_PHY_CAP_PAUSE_LBN))
469 rmtadv |= ADVERTISED_Pause;
470 if (lpa & (1 << MC_CMD_PHY_CAP_ASYM_LBN))
471 rmtadv |= ADVERTISED_Asym_Pause;
472
473 if ((efx->wanted_fc & EFX_FC_TX) && rmtadv == ADVERTISED_Asym_Pause)
62776d03
BH		 474 netif_err(efx, link, efx->net_dev,
475 "warning: link partner doesn't support pause frames");
afd4aea0
BH		 476}
477
478static bool efx_mcdi_phy_poll(struct efx_nic *efx)
479{
480 struct efx_link_state old_state = efx->link_state;
59cfc479 481 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN);
afd4aea0
BH		 482 int rc;
483
484 WARN_ON(!mutex_is_locked(&efx->mac_lock));
485
486 BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
487
488 rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
489 outbuf, sizeof(outbuf), NULL);
490 if (rc) {
62776d03
BH		 491 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
492 __func__, rc);
afd4aea0
BH		 493 efx->link_state.up = false;
494 } else {
495 efx_mcdi_phy_decode_link(
496 efx, &efx->link_state,
497 MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED),
498 MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS),
499 MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL));
500 }
501
502 return !efx_link_state_equal(&efx->link_state, &old_state);
503}
504
ff3b00a0 505static void efx_mcdi_phy_remove(struct efx_nic *efx)
afd4aea0
BH		 506{
507 struct efx_mcdi_phy_data *phy_data = efx->phy_data;
508
509 efx->phy_data = NULL;
510 kfree(phy_data);
511}
512
513static void efx_mcdi_phy_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
514{
3bd93035 515 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
59cfc479 516 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN);
afd4aea0
BH		 517 int rc;
518
519 ecmd->supported =
520 mcdi_to_ethtool_cap(phy_cfg->media, phy_cfg->supported_cap);
521 ecmd->advertising = efx->link_advertising;
70739497 522 ethtool_cmd_speed_set(ecmd, efx->link_state.speed);
afd4aea0
BH		 523 ecmd->duplex = efx->link_state.fd;
524 ecmd->port = mcdi_to_ethtool_media(phy_cfg->media);
525 ecmd->phy_address = phy_cfg->port;
526 ecmd->transceiver = XCVR_INTERNAL;
527 ecmd->autoneg = !!(efx->link_advertising & ADVERTISED_Autoneg);
528 ecmd->mdio_support = (efx->mdio.mode_support &
529 (MDIO_SUPPORTS_C45 | MDIO_SUPPORTS_C22));
530
531 BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
532 rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
533 outbuf, sizeof(outbuf), NULL);
534 if (rc) {
62776d03
BH		 535 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
536 __func__, rc);
afd4aea0
BH		 537 return;
538 }
539 ecmd->lp_advertising =
540 mcdi_to_ethtool_cap(phy_cfg->media,
541 MCDI_DWORD(outbuf, GET_LINK_OUT_LP_CAP));
542}
543
544static int efx_mcdi_phy_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
545{
3bd93035 546 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
afd4aea0
BH		 547 u32 caps;
548 int rc;
549
550 if (ecmd->autoneg) {
551 caps = (ethtool_to_mcdi_cap(ecmd->advertising) |
552 1 << MC_CMD_PHY_CAP_AN_LBN);
553 } else if (ecmd->duplex) {
25db0338 554 switch (ethtool_cmd_speed(ecmd)) {
afd4aea0
BH		 555 case 10: caps = 1 << MC_CMD_PHY_CAP_10FDX_LBN; break;
556 case 100: caps = 1 << MC_CMD_PHY_CAP_100FDX_LBN; break;
557 case 1000: caps = 1 << MC_CMD_PHY_CAP_1000FDX_LBN; break;
558 case 10000: caps = 1 << MC_CMD_PHY_CAP_10000FDX_LBN; break;
9a12a306 559 case 40000: caps = 1 << MC_CMD_PHY_CAP_40000FDX_LBN; break;
afd4aea0
BH		 560 default: return -EINVAL;
561 }
562 } else {
25db0338 563 switch (ethtool_cmd_speed(ecmd)) {
afd4aea0
BH		 564 case 10: caps = 1 << MC_CMD_PHY_CAP_10HDX_LBN; break;
565 case 100: caps = 1 << MC_CMD_PHY_CAP_100HDX_LBN; break;
566 case 1000: caps = 1 << MC_CMD_PHY_CAP_1000HDX_LBN; break;
567 default: return -EINVAL;
568 }
569 }
570
571 rc = efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx),
572 efx->loopback_mode, 0);
573 if (rc)
574 return rc;
575
576 if (ecmd->autoneg) {
577 efx_link_set_advertising(
578 efx, ecmd->advertising | ADVERTISED_Autoneg);
579 phy_cfg->forced_cap = 0;
580 } else {
581 efx_link_set_advertising(efx, 0);
582 phy_cfg->forced_cap = caps;
583 }
584 return 0;
585}
586
4f16c073
BH		 587static int efx_mcdi_phy_test_alive(struct efx_nic *efx)
588{
59cfc479 589 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_STATE_OUT_LEN);
4f16c073
BH		 590 size_t outlen;
591 int rc;
592
593 BUILD_BUG_ON(MC_CMD_GET_PHY_STATE_IN_LEN != 0);
594
595 rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_STATE, NULL, 0,
596 outbuf, sizeof(outbuf), &outlen);
597 if (rc)
598 return rc;
599
600 if (outlen < MC_CMD_GET_PHY_STATE_OUT_LEN)
00bbb4a5 601 return -EIO;
05a9320f 602 if (MCDI_DWORD(outbuf, GET_PHY_STATE_OUT_STATE) != MC_CMD_PHY_STATE_OK)
4f16c073
BH		 603 return -EINVAL;
604
605 return 0;
606}
607
affaf485
SH		 608static const char *const mcdi_sft9001_cable_diag_names[] = {
609 "cable.pairA.length",
610 "cable.pairB.length",
611 "cable.pairC.length",
612 "cable.pairD.length",
613 "cable.pairA.status",
614 "cable.pairB.status",
615 "cable.pairC.status",
616 "cable.pairD.status",
617};
618
619static int efx_mcdi_bist(struct efx_nic *efx, unsigned int bist_mode,
620 int *results)
621{
622 unsigned int retry, i, count = 0;
623 size_t outlen;
624 u32 status;
c5bb0e98
BH		 625 MCDI_DECLARE_BUF(inbuf, MC_CMD_START_BIST_IN_LEN);
626 MCDI_DECLARE_BUF(outbuf, MC_CMD_POLL_BIST_OUT_SFT9001_LEN);
627 u8 *ptr;
affaf485
SH		 628 int rc;
629
affaf485 630 BUILD_BUG_ON(MC_CMD_START_BIST_OUT_LEN != 0);
c5bb0e98
BH		 631 MCDI_SET_DWORD(inbuf, START_BIST_IN_TYPE, bist_mode);
632 rc = efx_mcdi_rpc(efx, MC_CMD_START_BIST,
633 inbuf, MC_CMD_START_BIST_IN_LEN, NULL, 0, NULL);
affaf485
SH		 634 if (rc)
635 goto out;
636
637 /* Wait up to 10s for BIST to finish */
638 for (retry = 0; retry < 100; ++retry) {
639 BUILD_BUG_ON(MC_CMD_POLL_BIST_IN_LEN != 0);
640 rc = efx_mcdi_rpc(efx, MC_CMD_POLL_BIST, NULL, 0,
c5bb0e98 641 outbuf, sizeof(outbuf), &outlen);
affaf485
SH		 642 if (rc)
643 goto out;
644
c5bb0e98 645 status = MCDI_DWORD(outbuf, POLL_BIST_OUT_RESULT);
affaf485
SH		 646 if (status != MC_CMD_POLL_BIST_RUNNING)
647 goto finished;
648
649 msleep(100);
650 }
651
652 rc = -ETIMEDOUT;
653 goto out;
654
655finished:
656 results[count++] = (status == MC_CMD_POLL_BIST_PASSED) ? 1 : -1;
657
658 /* SFT9001 specific cable diagnostics output */
659 if (efx->phy_type == PHY_TYPE_SFT9001B &&
660 (bist_mode == MC_CMD_PHY_BIST_CABLE_SHORT ||
661 bist_mode == MC_CMD_PHY_BIST_CABLE_LONG)) {
c5bb0e98 662 ptr = MCDI_PTR(outbuf, POLL_BIST_OUT_SFT9001_CABLE_LENGTH_A);
affaf485
SH		 663 if (status == MC_CMD_POLL_BIST_PASSED &&
664 outlen >= MC_CMD_POLL_BIST_OUT_SFT9001_LEN) {
665 for (i = 0; i < 8; i++) {
666 results[count + i] =
667 EFX_DWORD_FIELD(((efx_dword_t *)ptr)[i],
668 EFX_DWORD_0);
669 }
670 }
671 count += 8;
672 }
673 rc = count;
674
675out:
affaf485
SH		 676 return rc;
677}
678
679static int efx_mcdi_phy_run_tests(struct efx_nic *efx, int *results,
680 unsigned flags)
681{
3bd93035 682 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
affaf485
SH		 683 u32 mode;
684 int rc;
685
05a9320f 686 if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN)) {
affaf485
SH		 687 rc = efx_mcdi_bist(efx, MC_CMD_PHY_BIST, results);
688 if (rc < 0)
689 return rc;
690
691 results += rc;
692 }
693
694 /* If we support both LONG and SHORT, then run each in response to
695 * break or not. Otherwise, run the one we support */
696 mode = 0;
05a9320f 697 if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN)) {
affaf485
SH		 698 if ((flags & ETH_TEST_FL_OFFLINE) &&
699 (phy_cfg->flags &
05a9320f 700 (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN)))
affaf485
SH		 701 mode = MC_CMD_PHY_BIST_CABLE_LONG;
702 else
703 mode = MC_CMD_PHY_BIST_CABLE_SHORT;
704 } else if (phy_cfg->flags &
05a9320f 705 (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN))
affaf485
SH		 706 mode = MC_CMD_PHY_BIST_CABLE_LONG;
707
708 if (mode != 0) {
709 rc = efx_mcdi_bist(efx, mode, results);
710 if (rc < 0)
711 return rc;
712 results += rc;
713 }
714
715 return 0;
716}
717
d215697f 718static const char *efx_mcdi_phy_test_name(struct efx_nic *efx,
719 unsigned int index)
affaf485 720{
3bd93035 721 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
affaf485 722
05a9320f 723 if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN)) {
affaf485
SH		 724 if (index == 0)
725 return "bist";
726 --index;
727 }
728
05a9320f
BH		 729 if (phy_cfg->flags & ((1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN) |
730 (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN))) {
affaf485
SH		 731 if (index == 0)
732 return "cable";
733 --index;
734
735 if (efx->phy_type == PHY_TYPE_SFT9001B) {
736 if (index < ARRAY_SIZE(mcdi_sft9001_cable_diag_names))
737 return mcdi_sft9001_cable_diag_names[index];
738 index -= ARRAY_SIZE(mcdi_sft9001_cable_diag_names);
739 }
740 }
741
742 return NULL;
743}
744
c087bd2c
SH		 745#define SFP_PAGE_SIZE 128
746#define SFP_NUM_PAGES 2
747static int efx_mcdi_phy_get_module_eeprom(struct efx_nic *efx,
748 struct ethtool_eeprom *ee, u8 *data)
749{
59cfc479
BH		 750 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_MEDIA_INFO_OUT_LENMAX);
751 MCDI_DECLARE_BUF(inbuf, MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN);
c087bd2c
SH		 752 size_t outlen;
753 int rc;
754 unsigned int payload_len;
755 unsigned int space_remaining = ee->len;
756 unsigned int page;
757 unsigned int page_off;
758 unsigned int to_copy;
759 u8 *user_data = data;
760
761 BUILD_BUG_ON(SFP_PAGE_SIZE * SFP_NUM_PAGES != ETH_MODULE_SFF_8079_LEN);
762
763 page_off = ee->offset % SFP_PAGE_SIZE;
764 page = ee->offset / SFP_PAGE_SIZE;
765
766 while (space_remaining && (page < SFP_NUM_PAGES)) {
767 MCDI_SET_DWORD(inbuf, GET_PHY_MEDIA_INFO_IN_PAGE, page);
768
769 rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_MEDIA_INFO,
770 inbuf, sizeof(inbuf),
771 outbuf, sizeof(outbuf),
772 &outlen);
773 if (rc)
774 return rc;
775
776 if (outlen < (MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_OFST +
777 SFP_PAGE_SIZE))
778 return -EIO;
779
780 payload_len = MCDI_DWORD(outbuf,
781 GET_PHY_MEDIA_INFO_OUT_DATALEN);
782 if (payload_len != SFP_PAGE_SIZE)
783 return -EIO;
784
785 /* Copy as much as we can into data */
786 payload_len -= page_off;
787 to_copy = (space_remaining < payload_len) ?
788 space_remaining : payload_len;
789
790 memcpy(user_data,
c5bb0e98 791 MCDI_PTR(outbuf, GET_PHY_MEDIA_INFO_OUT_DATA) + page_off,
c087bd2c
SH		 792 to_copy);
793
794 space_remaining -= to_copy;
795 user_data += to_copy;
796 page_off = 0;
797 page++;
798 }
799
800 return 0;
801}
802
803static int efx_mcdi_phy_get_module_info(struct efx_nic *efx,
804 struct ethtool_modinfo *modinfo)
805{
806 struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
807
808 switch (phy_cfg->media) {
809 case MC_CMD_MEDIA_SFP_PLUS:
810 modinfo->type = ETH_MODULE_SFF_8079;
811 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
812 return 0;
813 default:
814 return -EOPNOTSUPP;
815 }
816}
817
43f775b2 818static const struct efx_phy_operations efx_mcdi_phy_ops = {
afd4aea0 819 .probe = efx_mcdi_phy_probe,
9c636baf 820 .init = efx_port_dummy_op_int,
43f775b2 821 .reconfigure = efx_mcdi_port_reconfigure,
afd4aea0 822 .poll = efx_mcdi_phy_poll,
ff3b00a0
SH		 823 .fini = efx_port_dummy_op_void,
824 .remove = efx_mcdi_phy_remove,
afd4aea0
BH		 825 .get_settings = efx_mcdi_phy_get_settings,
826 .set_settings = efx_mcdi_phy_set_settings,
4f16c073 827 .test_alive = efx_mcdi_phy_test_alive,
affaf485
SH		 828 .run_tests = efx_mcdi_phy_run_tests,
829 .test_name = efx_mcdi_phy_test_name,
c087bd2c
SH		 830 .get_module_eeprom = efx_mcdi_phy_get_module_eeprom,
831 .get_module_info = efx_mcdi_phy_get_module_info,
afd4aea0 832};
43f775b2 833
8127d661
BH		 834u32 efx_mcdi_phy_get_caps(struct efx_nic *efx)
835{
836 struct efx_mcdi_phy_data *phy_data = efx->phy_data;
837
838 return phy_data->supported_cap;
839}
840
43f775b2
BH		 841static unsigned int efx_mcdi_event_link_speed[] = {
842 [MCDI_EVENT_LINKCHANGE_SPEED_100M] = 100,
843 [MCDI_EVENT_LINKCHANGE_SPEED_1G] = 1000,
844 [MCDI_EVENT_LINKCHANGE_SPEED_10G] = 10000,
9a12a306 845 [MCDI_EVENT_LINKCHANGE_SPEED_40G] = 40000,
43f775b2
BH		 846};
847
848void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev)
849{
850 u32 flags, fcntl, speed, lpa;
851
852 speed = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_SPEED);
853 EFX_BUG_ON_PARANOID(speed >= ARRAY_SIZE(efx_mcdi_event_link_speed));
854 speed = efx_mcdi_event_link_speed[speed];
855
856 flags = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LINK_FLAGS);
857 fcntl = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_FCNTL);
858 lpa = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LP_CAP);
859
860 /* efx->link_state is only modified by efx_mcdi_phy_get_link(),
861 * which is only run after flushing the event queues. Therefore, it
862 * is safe to modify the link state outside of the mac_lock here.
863 */
864 efx_mcdi_phy_decode_link(efx, &efx->link_state, speed, flags, fcntl);
865
866 efx_mcdi_phy_check_fcntl(efx, lpa);
867
868 efx_link_status_changed(efx);
869}
870
871int efx_mcdi_set_mac(struct efx_nic *efx)
872{
964e6135 873 u32 fcntl;
43f775b2
BH		 874 MCDI_DECLARE_BUF(cmdbytes, MC_CMD_SET_MAC_IN_LEN);
875
876 BUILD_BUG_ON(MC_CMD_SET_MAC_OUT_LEN != 0);
877
878 memcpy(MCDI_PTR(cmdbytes, SET_MAC_IN_ADDR),
879 efx->net_dev->dev_addr, ETH_ALEN);
880
881 MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_MTU,
882 EFX_MAX_FRAME_LEN(efx->net_dev->mtu));
883 MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_DRAIN, 0);
884
964e6135
BH		 885 /* Set simple MAC filter for Siena */
886 MCDI_POPULATE_DWORD_1(cmdbytes, SET_MAC_IN_REJECT,
887 SET_MAC_IN_REJECT_UNCST, efx->unicast_filter);
43f775b2
BH		 888
889 switch (efx->wanted_fc) {
890 case EFX_FC_RX | EFX_FC_TX:
891 fcntl = MC_CMD_FCNTL_BIDIR;
892 break;
893 case EFX_FC_RX:
894 fcntl = MC_CMD_FCNTL_RESPOND;
895 break;
896 default:
897 fcntl = MC_CMD_FCNTL_OFF;
898 break;
899 }
900 if (efx->wanted_fc & EFX_FC_AUTO)
901 fcntl = MC_CMD_FCNTL_AUTO;
902 if (efx->fc_disable)
903 fcntl = MC_CMD_FCNTL_OFF;
904
905 MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_FCNTL, fcntl);
906
907 return efx_mcdi_rpc(efx, MC_CMD_SET_MAC, cmdbytes, sizeof(cmdbytes),
908 NULL, 0, NULL);
909}
910
911bool efx_mcdi_mac_check_fault(struct efx_nic *efx)
912{
913 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN);
914 size_t outlength;
915 int rc;
916
917 BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
918
919 rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
920 outbuf, sizeof(outbuf), &outlength);
921 if (rc) {
922 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n",
923 __func__, rc);
924 return true;
925 }
926
927 return MCDI_DWORD(outbuf, GET_LINK_OUT_MAC_FAULT) != 0;
928}
929
f8f3b5ae
JC		 930enum efx_stats_action {
931 EFX_STATS_ENABLE,
932 EFX_STATS_DISABLE,
933 EFX_STATS_PULL,
934};
935
936static int efx_mcdi_mac_stats(struct efx_nic *efx,
937 enum efx_stats_action action, int clear)
43f775b2
BH		 938{
939 MCDI_DECLARE_BUF(inbuf, MC_CMD_MAC_STATS_IN_LEN);
940 int rc;
f8f3b5ae
JC		 941 int change = action == EFX_STATS_PULL ? 0 : 1;
942 int enable = action == EFX_STATS_ENABLE ? 1 : 0;
943 int period = action == EFX_STATS_ENABLE ? 1000 : 0;
944 dma_addr_t dma_addr = efx->stats_buffer.dma_addr;
945 u32 dma_len = action != EFX_STATS_DISABLE ?
946 MC_CMD_MAC_NSTATS * sizeof(u64) : 0;
43f775b2
BH		 947
948 BUILD_BUG_ON(MC_CMD_MAC_STATS_OUT_DMA_LEN != 0);
949
950 MCDI_SET_QWORD(inbuf, MAC_STATS_IN_DMA_ADDR, dma_addr);
f5253d92
BH		 951 MCDI_POPULATE_DWORD_7(inbuf, MAC_STATS_IN_CMD,
952 MAC_STATS_IN_DMA, !!enable,
953 MAC_STATS_IN_CLEAR, clear,
f8f3b5ae
JC		 954 MAC_STATS_IN_PERIODIC_CHANGE, change,
955 MAC_STATS_IN_PERIODIC_ENABLE, enable,
f5253d92
BH		 956 MAC_STATS_IN_PERIODIC_CLEAR, 0,
957 MAC_STATS_IN_PERIODIC_NOEVENT, 1,
958 MAC_STATS_IN_PERIOD_MS, period);
43f775b2
BH		 959 MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_LEN, dma_len);
960
961 rc = efx_mcdi_rpc(efx, MC_CMD_MAC_STATS, inbuf, sizeof(inbuf),
962 NULL, 0, NULL);
963 if (rc)
964 goto fail;
965
966 return 0;
967
968fail:
f8f3b5ae
JC		 969 netif_err(efx, hw, efx->net_dev, "%s: action %d failed rc=%d\n",
970 __func__, action, rc);
43f775b2
BH		 971 return rc;
972}
973
974void 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
983void 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
991void 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
1005int 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
1038void 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) */
1045int 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}
Ubuntu Artful kernel mirror