1 /****************************************************************************
2 * Driver for Solarflare network controllers and boards
3 * Copyright 2009-2013 Solarflare Communications Inc.
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.
11 * Driver for PHY related operations via MCDI.
14 #include <linux/slab.h>
17 #include "mcdi_pcol.h"
21 struct efx_mcdi_phy_data
{
36 efx_mcdi_get_phy_cfg(struct efx_nic
*efx
, struct efx_mcdi_phy_data
*cfg
)
38 MCDI_DECLARE_BUF(outbuf
, MC_CMD_GET_PHY_CFG_OUT_LEN
);
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
));
45 rc
= efx_mcdi_rpc(efx
, MC_CMD_GET_PHY_CFG
, NULL
, 0,
46 outbuf
, sizeof(outbuf
), &outlen
);
50 if (outlen
< MC_CMD_GET_PHY_CFG_OUT_LEN
) {
55 cfg
->flags
= MCDI_DWORD(outbuf
, GET_PHY_CFG_OUT_FLAGS
);
56 cfg
->type
= MCDI_DWORD(outbuf
, GET_PHY_CFG_OUT_TYPE
);
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
),
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
));
72 netif_err(efx
, hw
, efx
->net_dev
, "%s: failed rc=%d\n", __func__
, rc
);
76 static int efx_mcdi_set_link(struct efx_nic
*efx
, u32 capabilities
,
77 u32 flags
, u32 loopback_mode
,
80 MCDI_DECLARE_BUF(inbuf
, MC_CMD_SET_LINK_IN_LEN
);
83 BUILD_BUG_ON(MC_CMD_SET_LINK_OUT_LEN
!= 0);
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
);
90 rc
= efx_mcdi_rpc(efx
, MC_CMD_SET_LINK
, inbuf
, sizeof(inbuf
),
95 static int efx_mcdi_loopback_modes(struct efx_nic
*efx
, u64
*loopback_modes
)
97 MCDI_DECLARE_BUF(outbuf
, MC_CMD_GET_LOOPBACK_MODES_OUT_LEN
);
101 rc
= efx_mcdi_rpc(efx
, MC_CMD_GET_LOOPBACK_MODES
, NULL
, 0,
102 outbuf
, sizeof(outbuf
), &outlen
);
106 if (outlen
< (MC_CMD_GET_LOOPBACK_MODES_OUT_SUGGESTED_OFST
+
107 MC_CMD_GET_LOOPBACK_MODES_OUT_SUGGESTED_LEN
)) {
112 *loopback_modes
= MCDI_QWORD(outbuf
, GET_LOOPBACK_MODES_OUT_SUGGESTED
);
117 netif_err(efx
, hw
, efx
->net_dev
, "%s: failed rc=%d\n", __func__
, rc
);
121 static int efx_mcdi_mdio_read(struct net_device
*net_dev
,
122 int prtad
, int devad
, u16 addr
)
124 struct efx_nic
*efx
= netdev_priv(net_dev
);
125 MCDI_DECLARE_BUF(inbuf
, MC_CMD_MDIO_READ_IN_LEN
);
126 MCDI_DECLARE_BUF(outbuf
, MC_CMD_MDIO_READ_OUT_LEN
);
130 MCDI_SET_DWORD(inbuf
, MDIO_READ_IN_BUS
, efx
->mdio_bus
);
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
);
135 rc
= efx_mcdi_rpc(efx
, MC_CMD_MDIO_READ
, inbuf
, sizeof(inbuf
),
136 outbuf
, sizeof(outbuf
), &outlen
);
140 if (MCDI_DWORD(outbuf
, MDIO_READ_OUT_STATUS
) !=
141 MC_CMD_MDIO_STATUS_GOOD
)
144 return (u16
)MCDI_DWORD(outbuf
, MDIO_READ_OUT_VALUE
);
147 static int efx_mcdi_mdio_write(struct net_device
*net_dev
,
148 int prtad
, int devad
, u16 addr
, u16 value
)
150 struct efx_nic
*efx
= netdev_priv(net_dev
);
151 MCDI_DECLARE_BUF(inbuf
, MC_CMD_MDIO_WRITE_IN_LEN
);
152 MCDI_DECLARE_BUF(outbuf
, MC_CMD_MDIO_WRITE_OUT_LEN
);
156 MCDI_SET_DWORD(inbuf
, MDIO_WRITE_IN_BUS
, efx
->mdio_bus
);
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
);
162 rc
= efx_mcdi_rpc(efx
, MC_CMD_MDIO_WRITE
, inbuf
, sizeof(inbuf
),
163 outbuf
, sizeof(outbuf
), &outlen
);
167 if (MCDI_DWORD(outbuf
, MDIO_WRITE_OUT_STATUS
) !=
168 MC_CMD_MDIO_STATUS_GOOD
)
174 static u32
mcdi_to_ethtool_cap(u32 media
, u32 cap
)
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
;
185 if (cap
& (1 << MC_CMD_PHY_CAP_40000FDX_LBN
))
186 result
|= SUPPORTED_40000baseKR4_Full
;
189 case MC_CMD_MEDIA_XFP
:
190 case MC_CMD_MEDIA_SFP_PLUS
:
191 case MC_CMD_MEDIA_QSFP_PLUS
:
192 result
|= SUPPORTED_FIBRE
;
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
;
197 if (cap
& (1 << MC_CMD_PHY_CAP_40000FDX_LBN
))
198 result
|= SUPPORTED_40000baseCR4_Full
;
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
;
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
;
230 static u32
ethtool_to_mcdi_cap(u32 cap
)
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
);
248 if (cap
& (SUPPORTED_40000baseCR4_Full
| SUPPORTED_40000baseKR4_Full
))
249 result
|= (1 << MC_CMD_PHY_CAP_40000FDX_LBN
);
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
);
260 static u32
efx_get_mcdi_phy_flags(struct efx_nic
*efx
)
262 struct efx_mcdi_phy_data
*phy_cfg
= efx
->phy_data
;
263 enum efx_phy_mode mode
, supported
;
266 /* TODO: Advertise the capabilities supported by this PHY */
268 if (phy_cfg
->flags
& (1 << MC_CMD_GET_PHY_CFG_OUT_TXDIS_LBN
))
269 supported
|= PHY_MODE_TX_DISABLED
;
270 if (phy_cfg
->flags
& (1 << MC_CMD_GET_PHY_CFG_OUT_LOWPOWER_LBN
))
271 supported
|= PHY_MODE_LOW_POWER
;
272 if (phy_cfg
->flags
& (1 << MC_CMD_GET_PHY_CFG_OUT_POWEROFF_LBN
))
273 supported
|= PHY_MODE_OFF
;
275 mode
= efx
->phy_mode
& supported
;
278 if (mode
& PHY_MODE_TX_DISABLED
)
279 flags
|= (1 << MC_CMD_SET_LINK_IN_TXDIS_LBN
);
280 if (mode
& PHY_MODE_LOW_POWER
)
281 flags
|= (1 << MC_CMD_SET_LINK_IN_LOWPOWER_LBN
);
282 if (mode
& PHY_MODE_OFF
)
283 flags
|= (1 << MC_CMD_SET_LINK_IN_POWEROFF_LBN
);
288 static u32
mcdi_to_ethtool_media(u32 media
)
291 case MC_CMD_MEDIA_XAUI
:
292 case MC_CMD_MEDIA_CX4
:
293 case MC_CMD_MEDIA_KX4
:
296 case MC_CMD_MEDIA_XFP
:
297 case MC_CMD_MEDIA_SFP_PLUS
:
298 case MC_CMD_MEDIA_QSFP_PLUS
:
301 case MC_CMD_MEDIA_BASE_T
:
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
)
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
;
318 case MC_CMD_FCNTL_BIDIR
:
319 link_state
->fc
= EFX_FC_TX
| EFX_FC_RX
;
321 case MC_CMD_FCNTL_RESPOND
:
322 link_state
->fc
= EFX_FC_RX
;
326 case MC_CMD_FCNTL_OFF
:
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
;
336 static int efx_mcdi_phy_probe(struct efx_nic
*efx
)
338 struct efx_mcdi_phy_data
*phy_data
;
339 MCDI_DECLARE_BUF(outbuf
, MC_CMD_GET_LINK_OUT_LEN
);
343 /* Initialise and populate phy_data */
344 phy_data
= kzalloc(sizeof(*phy_data
), GFP_KERNEL
);
345 if (phy_data
== NULL
)
348 rc
= efx_mcdi_get_phy_cfg(efx
, phy_data
);
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
);
359 /* Fill out nic state */
360 efx
->phy_data
= phy_data
;
361 efx
->phy_type
= phy_data
->type
;
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
);
366 efx
->mdio
.mode_support
= 0;
367 if (phy_data
->mmd_mask
& (1 << MC_CMD_MMD_CLAUSE22
))
368 efx
->mdio
.mode_support
|= MDIO_SUPPORTS_C22
;
369 if (phy_data
->mmd_mask
& ~(1 << MC_CMD_MMD_CLAUSE22
))
370 efx
->mdio
.mode_support
|= MDIO_SUPPORTS_C45
| MDIO_EMULATE_C22
;
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
);
377 phy_data
->forced_cap
= caps
;
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
);
408 rc
= efx_mcdi_loopback_modes(efx
, &efx
->loopback_modes
);
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
);
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
));
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
;
426 efx_link_set_wanted_fc(efx
, efx
->wanted_fc
);
435 int efx_mcdi_port_reconfigure(struct efx_nic
*efx
)
437 struct efx_mcdi_phy_data
*phy_cfg
= efx
->phy_data
;
438 u32 caps
= (efx
->link_advertising
?
439 ethtool_to_mcdi_cap(efx
->link_advertising
) :
440 phy_cfg
->forced_cap
);
442 return efx_mcdi_set_link(efx
, caps
, efx_get_mcdi_phy_flags(efx
),
443 efx
->loopback_mode
, 0);
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
449 static void efx_mcdi_phy_check_fcntl(struct efx_nic
*efx
, u32 lpa
)
451 struct efx_mcdi_phy_data
*phy_cfg
= efx
->phy_data
;
454 /* The link partner capabilities are only relevant if the
455 * link supports flow control autonegotiation */
456 if (~phy_cfg
->supported_cap
& (1 << MC_CMD_PHY_CAP_AN_LBN
))
459 /* If flow control autoneg is supported and enabled, then fine */
460 if (efx
->wanted_fc
& EFX_FC_AUTO
)
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
;
469 if ((efx
->wanted_fc
& EFX_FC_TX
) && rmtadv
== ADVERTISED_Asym_Pause
)
470 netif_err(efx
, link
, efx
->net_dev
,
471 "warning: link partner doesn't support pause frames");
474 static bool efx_mcdi_phy_poll(struct efx_nic
*efx
)
476 struct efx_link_state old_state
= efx
->link_state
;
477 MCDI_DECLARE_BUF(outbuf
, MC_CMD_GET_LINK_OUT_LEN
);
480 WARN_ON(!mutex_is_locked(&efx
->mac_lock
));
482 BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN
!= 0);
484 rc
= efx_mcdi_rpc(efx
, MC_CMD_GET_LINK
, NULL
, 0,
485 outbuf
, sizeof(outbuf
), NULL
);
487 efx
->link_state
.up
= false;
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
));
495 return !efx_link_state_equal(&efx
->link_state
, &old_state
);
498 static void efx_mcdi_phy_remove(struct efx_nic
*efx
)
500 struct efx_mcdi_phy_data
*phy_data
= efx
->phy_data
;
502 efx
->phy_data
= NULL
;
506 static void efx_mcdi_phy_get_link_ksettings(struct efx_nic
*efx
,
507 struct ethtool_link_ksettings
*cmd
)
509 struct efx_mcdi_phy_data
*phy_cfg
= efx
->phy_data
;
510 MCDI_DECLARE_BUF(outbuf
, MC_CMD_GET_LINK_OUT_LEN
);
512 u32 supported
, advertising
, lp_advertising
;
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
&
522 (MDIO_SUPPORTS_C45
| MDIO_SUPPORTS_C22
));
524 ethtool_convert_legacy_u32_to_link_mode(cmd
->link_modes
.supported
,
526 ethtool_convert_legacy_u32_to_link_mode(cmd
->link_modes
.advertising
,
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
);
535 mcdi_to_ethtool_cap(phy_cfg
->media
,
536 MCDI_DWORD(outbuf
, GET_LINK_OUT_LP_CAP
));
538 ethtool_convert_legacy_u32_to_link_mode(cmd
->link_modes
.lp_advertising
,
543 efx_mcdi_phy_set_link_ksettings(struct efx_nic
*efx
,
544 const struct ethtool_link_ksettings
*cmd
)
546 struct efx_mcdi_phy_data
*phy_cfg
= efx
->phy_data
;
551 ethtool_convert_link_mode_to_legacy_u32(&advertising
,
552 cmd
->link_modes
.advertising
);
554 if (cmd
->base
.autoneg
) {
555 caps
= (ethtool_to_mcdi_cap(advertising
) |
556 1 << MC_CMD_PHY_CAP_AN_LBN
);
557 } else if (cmd
->base
.duplex
) {
558 switch (cmd
->base
.speed
) {
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;
563 case 40000: caps
= 1 << MC_CMD_PHY_CAP_40000FDX_LBN
; break;
564 default: return -EINVAL
;
567 switch (cmd
->base
.speed
) {
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
;
575 rc
= efx_mcdi_set_link(efx
, caps
, efx_get_mcdi_phy_flags(efx
),
576 efx
->loopback_mode
, 0);
580 if (cmd
->base
.autoneg
) {
581 efx_link_set_advertising(
582 efx
, advertising
| ADVERTISED_Autoneg
);
583 phy_cfg
->forced_cap
= 0;
585 efx_link_set_advertising(efx
, 0);
586 phy_cfg
->forced_cap
= caps
;
591 static int efx_mcdi_phy_test_alive(struct efx_nic
*efx
)
593 MCDI_DECLARE_BUF(outbuf
, MC_CMD_GET_PHY_STATE_OUT_LEN
);
597 BUILD_BUG_ON(MC_CMD_GET_PHY_STATE_IN_LEN
!= 0);
599 rc
= efx_mcdi_rpc(efx
, MC_CMD_GET_PHY_STATE
, NULL
, 0,
600 outbuf
, sizeof(outbuf
), &outlen
);
604 if (outlen
< MC_CMD_GET_PHY_STATE_OUT_LEN
)
606 if (MCDI_DWORD(outbuf
, GET_PHY_STATE_OUT_STATE
) != MC_CMD_PHY_STATE_OK
)
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",
623 static int efx_mcdi_bist(struct efx_nic
*efx
, unsigned int bist_mode
,
626 unsigned int retry
, i
, count
= 0;
629 MCDI_DECLARE_BUF(inbuf
, MC_CMD_START_BIST_IN_LEN
);
630 MCDI_DECLARE_BUF(outbuf
, MC_CMD_POLL_BIST_OUT_SFT9001_LEN
);
634 BUILD_BUG_ON(MC_CMD_START_BIST_OUT_LEN
!= 0);
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
);
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,
645 outbuf
, sizeof(outbuf
), &outlen
);
649 status
= MCDI_DWORD(outbuf
, POLL_BIST_OUT_RESULT
);
650 if (status
!= MC_CMD_POLL_BIST_RUNNING
)
660 results
[count
++] = (status
== MC_CMD_POLL_BIST_PASSED
) ? 1 : -1;
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
)) {
666 ptr
= MCDI_PTR(outbuf
, POLL_BIST_OUT_SFT9001_CABLE_LENGTH_A
);
667 if (status
== MC_CMD_POLL_BIST_PASSED
&&
668 outlen
>= MC_CMD_POLL_BIST_OUT_SFT9001_LEN
) {
669 for (i
= 0; i
< 8; i
++) {
671 EFX_DWORD_FIELD(((efx_dword_t
*)ptr
)[i
],
683 static int efx_mcdi_phy_run_tests(struct efx_nic
*efx
, int *results
,
686 struct efx_mcdi_phy_data
*phy_cfg
= efx
->phy_data
;
690 if (phy_cfg
->flags
& (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN
)) {
691 rc
= efx_mcdi_bist(efx
, MC_CMD_PHY_BIST
, results
);
698 /* If we support both LONG and SHORT, then run each in response to
699 * break or not. Otherwise, run the one we support */
701 if (phy_cfg
->flags
& (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN
)) {
702 if ((flags
& ETH_TEST_FL_OFFLINE
) &&
704 (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN
)))
705 mode
= MC_CMD_PHY_BIST_CABLE_LONG
;
707 mode
= MC_CMD_PHY_BIST_CABLE_SHORT
;
708 } else if (phy_cfg
->flags
&
709 (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN
))
710 mode
= MC_CMD_PHY_BIST_CABLE_LONG
;
713 rc
= efx_mcdi_bist(efx
, mode
, results
);
722 static const char *efx_mcdi_phy_test_name(struct efx_nic
*efx
,
725 struct efx_mcdi_phy_data
*phy_cfg
= efx
->phy_data
;
727 if (phy_cfg
->flags
& (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN
)) {
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
))) {
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
);
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
)
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
);
758 unsigned int payload_len
;
759 unsigned int space_remaining
= ee
->len
;
761 unsigned int page_off
;
762 unsigned int to_copy
;
763 u8
*user_data
= data
;
765 BUILD_BUG_ON(SFP_PAGE_SIZE
* SFP_NUM_PAGES
!= ETH_MODULE_SFF_8079_LEN
);
767 page_off
= ee
->offset
% SFP_PAGE_SIZE
;
768 page
= ee
->offset
/ SFP_PAGE_SIZE
;
770 while (space_remaining
&& (page
< SFP_NUM_PAGES
)) {
771 MCDI_SET_DWORD(inbuf
, GET_PHY_MEDIA_INFO_IN_PAGE
, page
);
773 rc
= efx_mcdi_rpc(efx
, MC_CMD_GET_PHY_MEDIA_INFO
,
774 inbuf
, sizeof(inbuf
),
775 outbuf
, sizeof(outbuf
),
780 if (outlen
< (MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_OFST
+
784 payload_len
= MCDI_DWORD(outbuf
,
785 GET_PHY_MEDIA_INFO_OUT_DATALEN
);
786 if (payload_len
!= SFP_PAGE_SIZE
)
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
;
795 MCDI_PTR(outbuf
, GET_PHY_MEDIA_INFO_OUT_DATA
) + page_off
,
798 space_remaining
-= to_copy
;
799 user_data
+= to_copy
;
807 static int efx_mcdi_phy_get_module_info(struct efx_nic
*efx
,
808 struct ethtool_modinfo
*modinfo
)
810 struct efx_mcdi_phy_data
*phy_cfg
= efx
->phy_data
;
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
;
822 static const struct efx_phy_operations efx_mcdi_phy_ops
= {
823 .probe
= efx_mcdi_phy_probe
,
824 .init
= efx_port_dummy_op_int
,
825 .reconfigure
= efx_mcdi_port_reconfigure
,
826 .poll
= efx_mcdi_phy_poll
,
827 .fini
= efx_port_dummy_op_void
,
828 .remove
= efx_mcdi_phy_remove
,
829 .get_link_ksettings
= efx_mcdi_phy_get_link_ksettings
,
830 .set_link_ksettings
= efx_mcdi_phy_set_link_ksettings
,
831 .test_alive
= efx_mcdi_phy_test_alive
,
832 .run_tests
= efx_mcdi_phy_run_tests
,
833 .test_name
= efx_mcdi_phy_test_name
,
834 .get_module_eeprom
= efx_mcdi_phy_get_module_eeprom
,
835 .get_module_info
= efx_mcdi_phy_get_module_info
,
838 u32
efx_mcdi_phy_get_caps(struct efx_nic
*efx
)
840 struct efx_mcdi_phy_data
*phy_data
= efx
->phy_data
;
842 return phy_data
->supported_cap
;
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,
849 [MCDI_EVENT_LINKCHANGE_SPEED_40G
] = 40000,
852 void efx_mcdi_process_link_change(struct efx_nic
*efx
, efx_qword_t
*ev
)
854 u32 flags
, fcntl
, speed
, lpa
;
856 speed
= EFX_QWORD_FIELD(*ev
, MCDI_EVENT_LINKCHANGE_SPEED
);
857 EFX_WARN_ON_PARANOID(speed
>= ARRAY_SIZE(efx_mcdi_event_link_speed
));
858 speed
= efx_mcdi_event_link_speed
[speed
];
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
);
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.
868 efx_mcdi_phy_decode_link(efx
, &efx
->link_state
, speed
, flags
, fcntl
);
870 efx_mcdi_phy_check_fcntl(efx
, lpa
);
872 efx_link_status_changed(efx
);
875 int efx_mcdi_set_mac(struct efx_nic
*efx
)
878 MCDI_DECLARE_BUF(cmdbytes
, MC_CMD_SET_MAC_IN_LEN
);
880 BUILD_BUG_ON(MC_CMD_SET_MAC_OUT_LEN
!= 0);
882 /* This has no effect on EF10 */
883 ether_addr_copy(MCDI_PTR(cmdbytes
, SET_MAC_IN_ADDR
),
884 efx
->net_dev
->dev_addr
);
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);
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
);
894 switch (efx
->wanted_fc
) {
895 case EFX_FC_RX
| EFX_FC_TX
:
896 fcntl
= MC_CMD_FCNTL_BIDIR
;
899 fcntl
= MC_CMD_FCNTL_RESPOND
;
902 fcntl
= MC_CMD_FCNTL_OFF
;
905 if (efx
->wanted_fc
& EFX_FC_AUTO
)
906 fcntl
= MC_CMD_FCNTL_AUTO
;
908 fcntl
= MC_CMD_FCNTL_OFF
;
910 MCDI_SET_DWORD(cmdbytes
, SET_MAC_IN_FCNTL
, fcntl
);
912 return efx_mcdi_rpc(efx
, MC_CMD_SET_MAC
, cmdbytes
, sizeof(cmdbytes
),
916 bool efx_mcdi_mac_check_fault(struct efx_nic
*efx
)
918 MCDI_DECLARE_BUF(outbuf
, MC_CMD_GET_LINK_OUT_LEN
);
922 BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN
!= 0);
924 rc
= efx_mcdi_rpc(efx
, MC_CMD_GET_LINK
, NULL
, 0,
925 outbuf
, sizeof(outbuf
), &outlength
);
929 return MCDI_DWORD(outbuf
, GET_LINK_OUT_MAC_FAULT
) != 0;
932 enum efx_stats_action
{
938 static int efx_mcdi_mac_stats(struct efx_nic
*efx
,
939 enum efx_stats_action action
, int clear
)
941 struct efx_ef10_nic_data
*nic_data
= efx
->nic_data
;
942 MCDI_DECLARE_BUF(inbuf
, MC_CMD_MAC_STATS_IN_LEN
);
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;
951 BUILD_BUG_ON(MC_CMD_MAC_STATS_OUT_DMA_LEN
!= 0);
953 MCDI_SET_QWORD(inbuf
, MAC_STATS_IN_DMA_ADDR
, dma_addr
);
954 MCDI_POPULATE_DWORD_7(inbuf
, MAC_STATS_IN_CMD
,
955 MAC_STATS_IN_DMA
, !!enable
,
956 MAC_STATS_IN_CLEAR
, clear
,
957 MAC_STATS_IN_PERIODIC_CHANGE
, change
,
958 MAC_STATS_IN_PERIODIC_ENABLE
, enable
,
959 MAC_STATS_IN_PERIODIC_CLEAR
, 0,
960 MAC_STATS_IN_PERIODIC_NOEVENT
, 1,
961 MAC_STATS_IN_PERIOD_MS
, period
);
962 MCDI_SET_DWORD(inbuf
, MAC_STATS_IN_DMA_LEN
, dma_len
);
963 MCDI_SET_DWORD(inbuf
, MAC_STATS_IN_PORT_ID
, nic_data
->vport_id
);
965 rc
= efx_mcdi_rpc_quiet(efx
, MC_CMD_MAC_STATS
, inbuf
, sizeof(inbuf
),
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
),
974 void efx_mcdi_mac_start_stats(struct efx_nic
*efx
)
976 __le64
*dma_stats
= efx
->stats_buffer
.addr
;
978 dma_stats
[MC_CMD_MAC_GENERATION_END
] = EFX_MC_STATS_GENERATION_INVALID
;
980 efx_mcdi_mac_stats(efx
, EFX_STATS_ENABLE
, 0);
983 void efx_mcdi_mac_stop_stats(struct efx_nic
*efx
)
985 efx_mcdi_mac_stats(efx
, EFX_STATS_DISABLE
, 0);
988 #define EFX_MAC_STATS_WAIT_US 100
989 #define EFX_MAC_STATS_WAIT_ATTEMPTS 10
991 void efx_mcdi_mac_pull_stats(struct efx_nic
*efx
)
993 __le64
*dma_stats
= efx
->stats_buffer
.addr
;
994 int attempts
= EFX_MAC_STATS_WAIT_ATTEMPTS
;
996 dma_stats
[MC_CMD_MAC_GENERATION_END
] = EFX_MC_STATS_GENERATION_INVALID
;
997 efx_mcdi_mac_stats(efx
, EFX_STATS_PULL
, 0);
999 while (dma_stats
[MC_CMD_MAC_GENERATION_END
] ==
1000 EFX_MC_STATS_GENERATION_INVALID
&&
1002 udelay(EFX_MAC_STATS_WAIT_US
);
1005 int efx_mcdi_port_probe(struct efx_nic
*efx
)
1009 /* Hook in PHY operations table */
1010 efx
->phy_op
= &efx_mcdi_phy_ops
;
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
;
1017 /* Fill out MDIO structure, loopback modes, and initial link state */
1018 rc
= efx
->phy_op
->probe(efx
);
1022 /* Allocate buffer for stats */
1023 rc
= efx_nic_alloc_buffer(efx
, &efx
->stats_buffer
,
1024 MC_CMD_MAC_NSTATS
* sizeof(u64
), GFP_KERNEL
);
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
));
1033 efx_mcdi_mac_stats(efx
, EFX_STATS_DISABLE
, 1);
1038 void efx_mcdi_port_remove(struct efx_nic
*efx
)
1040 efx
->phy_op
->remove(efx
);
1041 efx_nic_free_buffer(efx
, &efx
->stats_buffer
);
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
)
1047 MCDI_DECLARE_BUF(outbuf
, MC_CMD_GET_PORT_ASSIGNMENT_OUT_LEN
);
1050 rc
= efx_mcdi_rpc(efx
, MC_CMD_GET_PORT_ASSIGNMENT
, NULL
, 0,
1051 outbuf
, sizeof(outbuf
), NULL
);
1055 return MCDI_DWORD(outbuf
, GET_PORT_ASSIGNMENT_OUT_PORT
);