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linux-next/drivers/net/sfc/mcdi_phy.c
Ben Hutchings 4f16c07391 sfc: Replace PHY MDIO test with an 'alive' test 
SFC9000-family boards do not all use MDIO PHYs, so we need a different
test for PHY aliveness.

Introduce a PHY operation test_alive().  For PHYs attached to Falcon,
use a common implementation based on the existing PHY MDIO test.
For PHYs managed through MCDI, use the appropriate MCDI request.

Change test name in ethtool from 'core mdio' to 'phy alive'.

Rename test_results::mdio to phy_alive and test_results::phy to phy_ext.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-03 19:12:44 -08:00

609 lines
17 KiB
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/****************************************************************************
* Driver for Solarflare Solarstorm network controllers and boards
* Copyright 2009 Solarflare Communications Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation, incorporated herein by reference.
*/
/*
* Driver for PHY related operations via MCDI.
*/
#include "efx.h"
#include "phy.h"
#include "mcdi.h"
#include "mcdi_pcol.h"
#include "mdio_10g.h"
struct efx_mcdi_phy_cfg {
u32 flags;
u32 type;
u32 supported_cap;
u32 channel;
u32 port;
u32 stats_mask;
u8 name[20];
u32 media;
u32 mmd_mask;
u8 revision[20];
u32 forced_cap;
};
static int
efx_mcdi_get_phy_cfg(struct efx_nic *efx, struct efx_mcdi_phy_cfg *cfg)
{
u8 outbuf[MC_CMD_GET_PHY_CFG_OUT_LEN];
size_t outlen;
int rc;
BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_IN_LEN != 0);
BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_OUT_NAME_LEN != sizeof(cfg->name));
rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_CFG, NULL, 0,
outbuf, sizeof(outbuf), &outlen);
if (rc)
goto fail;
if (outlen < MC_CMD_GET_PHY_CFG_OUT_LEN) {
rc = -EMSGSIZE;
goto fail;
}
cfg->flags = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_FLAGS);
cfg->type = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_TYPE);
cfg->supported_cap =
MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_SUPPORTED_CAP);
cfg->channel = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_CHANNEL);
cfg->port = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_PRT);
cfg->stats_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_STATS_MASK);
memcpy(cfg->name, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_NAME),
sizeof(cfg->name));
cfg->media = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MEDIA_TYPE);
cfg->mmd_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MMD_MASK);
memcpy(cfg->revision, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_REVISION),
sizeof(cfg->revision));
return 0;
fail:
EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
return rc;
}
static int efx_mcdi_set_link(struct efx_nic *efx, u32 capabilities,
u32 flags, u32 loopback_mode,
u32 loopback_speed)
{
u8 inbuf[MC_CMD_SET_LINK_IN_LEN];
int rc;
BUILD_BUG_ON(MC_CMD_SET_LINK_OUT_LEN != 0);
MCDI_SET_DWORD(inbuf, SET_LINK_IN_CAP, capabilities);
MCDI_SET_DWORD(inbuf, SET_LINK_IN_FLAGS, flags);
MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_MODE, loopback_mode);
MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_SPEED, loopback_speed);
rc = efx_mcdi_rpc(efx, MC_CMD_SET_LINK, inbuf, sizeof(inbuf),
NULL, 0, NULL);
if (rc)
goto fail;
return 0;
fail:
EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
return rc;
}
static int efx_mcdi_loopback_modes(struct efx_nic *efx, u64 *loopback_modes)
{
u8 outbuf[MC_CMD_GET_LOOPBACK_MODES_OUT_LEN];
size_t outlen;
int rc;
rc = efx_mcdi_rpc(efx, MC_CMD_GET_LOOPBACK_MODES, NULL, 0,
outbuf, sizeof(outbuf), &outlen);
if (rc)
goto fail;
if (outlen < MC_CMD_GET_LOOPBACK_MODES_OUT_LEN) {
rc = -EMSGSIZE;
goto fail;
}
*loopback_modes = MCDI_QWORD(outbuf, GET_LOOPBACK_MODES_SUGGESTED);
return 0;
fail:
EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
return rc;
}
int efx_mcdi_mdio_read(struct efx_nic *efx, unsigned int bus,
unsigned int prtad, unsigned int devad, u16 addr,
u16 *value_out, u32 *status_out)
{
u8 inbuf[MC_CMD_MDIO_READ_IN_LEN];
u8 outbuf[MC_CMD_MDIO_READ_OUT_LEN];
size_t outlen;
int rc;
MCDI_SET_DWORD(inbuf, MDIO_READ_IN_BUS, bus);
MCDI_SET_DWORD(inbuf, MDIO_READ_IN_PRTAD, prtad);
MCDI_SET_DWORD(inbuf, MDIO_READ_IN_DEVAD, devad);
MCDI_SET_DWORD(inbuf, MDIO_READ_IN_ADDR, addr);
rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_READ, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), &outlen);
if (rc)
goto fail;
*value_out = (u16)MCDI_DWORD(outbuf, MDIO_READ_OUT_VALUE);
*status_out = MCDI_DWORD(outbuf, MDIO_READ_OUT_STATUS);
return 0;
fail:
EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
return rc;
}
int efx_mcdi_mdio_write(struct efx_nic *efx, unsigned int bus,
unsigned int prtad, unsigned int devad, u16 addr,
u16 value, u32 *status_out)
{
u8 inbuf[MC_CMD_MDIO_WRITE_IN_LEN];
u8 outbuf[MC_CMD_MDIO_WRITE_OUT_LEN];
size_t outlen;
int rc;
MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_BUS, bus);
MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_PRTAD, prtad);
MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_DEVAD, devad);
MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_ADDR, addr);
MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_VALUE, value);
rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_WRITE, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), &outlen);
if (rc)
goto fail;
*status_out = MCDI_DWORD(outbuf, MDIO_WRITE_OUT_STATUS);
return 0;
fail:
EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
return rc;
}
static u32 mcdi_to_ethtool_cap(u32 media, u32 cap)
{
u32 result = 0;
switch (media) {
case MC_CMD_MEDIA_KX4:
result |= SUPPORTED_Backplane;
if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN))
result |= SUPPORTED_1000baseKX_Full;
if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN))
result |= SUPPORTED_10000baseKX4_Full;
break;
case MC_CMD_MEDIA_XFP:
case MC_CMD_MEDIA_SFP_PLUS:
result |= SUPPORTED_FIBRE;
break;
case MC_CMD_MEDIA_BASE_T:
result |= SUPPORTED_TP;
if (cap & (1 << MC_CMD_PHY_CAP_10HDX_LBN))
result |= SUPPORTED_10baseT_Half;
if (cap & (1 << MC_CMD_PHY_CAP_10FDX_LBN))
result |= SUPPORTED_10baseT_Full;
if (cap & (1 << MC_CMD_PHY_CAP_100HDX_LBN))
result |= SUPPORTED_100baseT_Half;
if (cap & (1 << MC_CMD_PHY_CAP_100FDX_LBN))
result |= SUPPORTED_100baseT_Full;
if (cap & (1 << MC_CMD_PHY_CAP_1000HDX_LBN))
result |= SUPPORTED_1000baseT_Half;
if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN))
result |= SUPPORTED_1000baseT_Full;
if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN))
result |= SUPPORTED_10000baseT_Full;
break;
}
if (cap & (1 << MC_CMD_PHY_CAP_PAUSE_LBN))
result |= SUPPORTED_Pause;
if (cap & (1 << MC_CMD_PHY_CAP_ASYM_LBN))
result |= SUPPORTED_Asym_Pause;
if (cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
result |= SUPPORTED_Autoneg;
return result;
}
static u32 ethtool_to_mcdi_cap(u32 cap)
{
u32 result = 0;
if (cap & SUPPORTED_10baseT_Half)
result |= (1 << MC_CMD_PHY_CAP_10HDX_LBN);
if (cap & SUPPORTED_10baseT_Full)
result |= (1 << MC_CMD_PHY_CAP_10FDX_LBN);
if (cap & SUPPORTED_100baseT_Half)
result |= (1 << MC_CMD_PHY_CAP_100HDX_LBN);
if (cap & SUPPORTED_100baseT_Full)
result |= (1 << MC_CMD_PHY_CAP_100FDX_LBN);
if (cap & SUPPORTED_1000baseT_Half)
result |= (1 << MC_CMD_PHY_CAP_1000HDX_LBN);
if (cap & (SUPPORTED_1000baseT_Full | SUPPORTED_1000baseKX_Full))
result |= (1 << MC_CMD_PHY_CAP_1000FDX_LBN);
if (cap & (SUPPORTED_10000baseT_Full | SUPPORTED_10000baseKX4_Full))
result |= (1 << MC_CMD_PHY_CAP_10000FDX_LBN);
if (cap & SUPPORTED_Pause)
result |= (1 << MC_CMD_PHY_CAP_PAUSE_LBN);
if (cap & SUPPORTED_Asym_Pause)
result |= (1 << MC_CMD_PHY_CAP_ASYM_LBN);
if (cap & SUPPORTED_Autoneg)
result |= (1 << MC_CMD_PHY_CAP_AN_LBN);
return result;
}
static u32 efx_get_mcdi_phy_flags(struct efx_nic *efx)
{
struct efx_mcdi_phy_cfg *phy_cfg = efx->phy_data;
enum efx_phy_mode mode, supported;
u32 flags;
/* TODO: Advertise the capabilities supported by this PHY */
supported = 0;
if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_TXDIS_LBN))
supported |= PHY_MODE_TX_DISABLED;
if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_LOWPOWER_LBN))
supported |= PHY_MODE_LOW_POWER;
if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_POWEROFF_LBN))
supported |= PHY_MODE_OFF;
mode = efx->phy_mode & supported;
flags = 0;
if (mode & PHY_MODE_TX_DISABLED)
flags |= (1 << MC_CMD_SET_LINK_TXDIS_LBN);
if (mode & PHY_MODE_LOW_POWER)
flags |= (1 << MC_CMD_SET_LINK_LOWPOWER_LBN);
if (mode & PHY_MODE_OFF)
flags |= (1 << MC_CMD_SET_LINK_POWEROFF_LBN);
return flags;
}
static u32 mcdi_to_ethtool_media(u32 media)
{
switch (media) {
case MC_CMD_MEDIA_XAUI:
case MC_CMD_MEDIA_CX4:
case MC_CMD_MEDIA_KX4:
return PORT_OTHER;
case MC_CMD_MEDIA_XFP:
case MC_CMD_MEDIA_SFP_PLUS:
return PORT_FIBRE;
case MC_CMD_MEDIA_BASE_T:
return PORT_TP;
default:
return PORT_OTHER;
}
}
static int efx_mcdi_phy_probe(struct efx_nic *efx)
{
struct efx_mcdi_phy_cfg *phy_data;
u8 outbuf[MC_CMD_GET_LINK_OUT_LEN];
u32 caps;
int rc;
/* Initialise and populate phy_data */
phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL);
if (phy_data == NULL)
return -ENOMEM;
rc = efx_mcdi_get_phy_cfg(efx, phy_data);
if (rc != 0)
goto fail;
/* Read initial link advertisement */
BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
outbuf, sizeof(outbuf), NULL);
if (rc)
goto fail;
/* Fill out nic state */
efx->phy_data = phy_data;
efx->phy_type = phy_data->type;
efx->mdio_bus = phy_data->channel;
efx->mdio.prtad = phy_data->port;
efx->mdio.mmds = phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22);
efx->mdio.mode_support = 0;
if (phy_data->mmd_mask & (1 << MC_CMD_MMD_CLAUSE22))
efx->mdio.mode_support |= MDIO_SUPPORTS_C22;
if (phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22))
efx->mdio.mode_support |= MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22;
caps = MCDI_DWORD(outbuf, GET_LINK_OUT_CAP);
if (caps & (1 << MC_CMD_PHY_CAP_AN_LBN))
efx->link_advertising =
mcdi_to_ethtool_cap(phy_data->media, caps);
else
phy_data->forced_cap = caps;
/* Assert that we can map efx -> mcdi loopback modes */
BUILD_BUG_ON(LOOPBACK_NONE != MC_CMD_LOOPBACK_NONE);
BUILD_BUG_ON(LOOPBACK_DATA != MC_CMD_LOOPBACK_DATA);
BUILD_BUG_ON(LOOPBACK_GMAC != MC_CMD_LOOPBACK_GMAC);
BUILD_BUG_ON(LOOPBACK_XGMII != MC_CMD_LOOPBACK_XGMII);
BUILD_BUG_ON(LOOPBACK_XGXS != MC_CMD_LOOPBACK_XGXS);
BUILD_BUG_ON(LOOPBACK_XAUI != MC_CMD_LOOPBACK_XAUI);
BUILD_BUG_ON(LOOPBACK_GMII != MC_CMD_LOOPBACK_GMII);
BUILD_BUG_ON(LOOPBACK_SGMII != MC_CMD_LOOPBACK_SGMII);
BUILD_BUG_ON(LOOPBACK_XGBR != MC_CMD_LOOPBACK_XGBR);
BUILD_BUG_ON(LOOPBACK_XFI != MC_CMD_LOOPBACK_XFI);
BUILD_BUG_ON(LOOPBACK_XAUI_FAR != MC_CMD_LOOPBACK_XAUI_FAR);
BUILD_BUG_ON(LOOPBACK_GMII_FAR != MC_CMD_LOOPBACK_GMII_FAR);
BUILD_BUG_ON(LOOPBACK_SGMII_FAR != MC_CMD_LOOPBACK_SGMII_FAR);
BUILD_BUG_ON(LOOPBACK_XFI_FAR != MC_CMD_LOOPBACK_XFI_FAR);
BUILD_BUG_ON(LOOPBACK_GPHY != MC_CMD_LOOPBACK_GPHY);
BUILD_BUG_ON(LOOPBACK_PHYXS != MC_CMD_LOOPBACK_PHYXS);
BUILD_BUG_ON(LOOPBACK_PCS != MC_CMD_LOOPBACK_PCS);
BUILD_BUG_ON(LOOPBACK_PMAPMD != MC_CMD_LOOPBACK_PMAPMD);
BUILD_BUG_ON(LOOPBACK_XPORT != MC_CMD_LOOPBACK_XPORT);
BUILD_BUG_ON(LOOPBACK_XGMII_WS != MC_CMD_LOOPBACK_XGMII_WS);
BUILD_BUG_ON(LOOPBACK_XAUI_WS != MC_CMD_LOOPBACK_XAUI_WS);
BUILD_BUG_ON(LOOPBACK_XAUI_WS_FAR != MC_CMD_LOOPBACK_XAUI_WS_FAR);
BUILD_BUG_ON(LOOPBACK_XAUI_WS_NEAR != MC_CMD_LOOPBACK_XAUI_WS_NEAR);
BUILD_BUG_ON(LOOPBACK_GMII_WS != MC_CMD_LOOPBACK_GMII_WS);
BUILD_BUG_ON(LOOPBACK_XFI_WS != MC_CMD_LOOPBACK_XFI_WS);
BUILD_BUG_ON(LOOPBACK_XFI_WS_FAR != MC_CMD_LOOPBACK_XFI_WS_FAR);
BUILD_BUG_ON(LOOPBACK_PHYXS_WS != MC_CMD_LOOPBACK_PHYXS_WS);
rc = efx_mcdi_loopback_modes(efx, &efx->loopback_modes);
if (rc != 0)
goto fail;
/* The MC indicates that LOOPBACK_NONE is a valid loopback mode,
* but by convention we don't */
efx->loopback_modes &= ~(1 << LOOPBACK_NONE);
/* Set the initial link mode */
efx_mcdi_phy_decode_link(
efx, &efx->link_state,
MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED),
MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS),
MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL));
/* Default to Autonegotiated flow control if the PHY supports it */
efx->wanted_fc = EFX_FC_RX | EFX_FC_TX;
if (phy_data->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
efx->wanted_fc |= EFX_FC_AUTO;
return 0;
fail:
kfree(phy_data);
return rc;
}
int efx_mcdi_phy_reconfigure(struct efx_nic *efx)
{
struct efx_mcdi_phy_cfg *phy_cfg = efx->phy_data;
u32 caps = (efx->link_advertising ?
ethtool_to_mcdi_cap(efx->link_advertising) :
phy_cfg->forced_cap);
return efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx),
efx->loopback_mode, 0);
}
void efx_mcdi_phy_decode_link(struct efx_nic *efx,
struct efx_link_state *link_state,
u32 speed, u32 flags, u32 fcntl)
{
switch (fcntl) {
case MC_CMD_FCNTL_AUTO:
WARN_ON(1); /* This is not a link mode */
link_state->fc = EFX_FC_AUTO | EFX_FC_TX | EFX_FC_RX;
break;
case MC_CMD_FCNTL_BIDIR:
link_state->fc = EFX_FC_TX | EFX_FC_RX;
break;
case MC_CMD_FCNTL_RESPOND:
link_state->fc = EFX_FC_RX;
break;
default:
WARN_ON(1);
case MC_CMD_FCNTL_OFF:
link_state->fc = 0;
break;
}
link_state->up = !!(flags & (1 << MC_CMD_GET_LINK_LINK_UP_LBN));
link_state->fd = !!(flags & (1 << MC_CMD_GET_LINK_FULL_DUPLEX_LBN));
link_state->speed = speed;
}
/* Verify that the forced flow control settings (!EFX_FC_AUTO) are
* supported by the link partner. Warn the user if this isn't the case
*/
void efx_mcdi_phy_check_fcntl(struct efx_nic *efx, u32 lpa)
{
struct efx_mcdi_phy_cfg *phy_cfg = efx->phy_data;
u32 rmtadv;
/* The link partner capabilities are only relevent if the
* link supports flow control autonegotiation */
if (~phy_cfg->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
return;
/* If flow control autoneg is supported and enabled, then fine */
if (efx->wanted_fc & EFX_FC_AUTO)
return;
rmtadv = 0;
if (lpa & (1 << MC_CMD_PHY_CAP_PAUSE_LBN))
rmtadv |= ADVERTISED_Pause;
if (lpa & (1 << MC_CMD_PHY_CAP_ASYM_LBN))
rmtadv |= ADVERTISED_Asym_Pause;
if ((efx->wanted_fc & EFX_FC_TX) && rmtadv == ADVERTISED_Asym_Pause)
EFX_ERR(efx, "warning: link partner doesn't support "
"pause frames");
}
static bool efx_mcdi_phy_poll(struct efx_nic *efx)
{
struct efx_link_state old_state = efx->link_state;
u8 outbuf[MC_CMD_GET_LINK_OUT_LEN];
int rc;
WARN_ON(!mutex_is_locked(&efx->mac_lock));
BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
outbuf, sizeof(outbuf), NULL);
if (rc) {
EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
efx->link_state.up = false;
} else {
efx_mcdi_phy_decode_link(
efx, &efx->link_state,
MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED),
MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS),
MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL));
}
return !efx_link_state_equal(&efx->link_state, &old_state);
}
static void efx_mcdi_phy_remove(struct efx_nic *efx)
{
struct efx_mcdi_phy_data *phy_data = efx->phy_data;
efx->phy_data = NULL;
kfree(phy_data);
}
static void efx_mcdi_phy_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
{
struct efx_mcdi_phy_cfg *phy_cfg = efx->phy_data;
u8 outbuf[MC_CMD_GET_LINK_OUT_LEN];
int rc;
ecmd->supported =
mcdi_to_ethtool_cap(phy_cfg->media, phy_cfg->supported_cap);
ecmd->advertising = efx->link_advertising;
ecmd->speed = efx->link_state.speed;
ecmd->duplex = efx->link_state.fd;
ecmd->port = mcdi_to_ethtool_media(phy_cfg->media);
ecmd->phy_address = phy_cfg->port;
ecmd->transceiver = XCVR_INTERNAL;
ecmd->autoneg = !!(efx->link_advertising & ADVERTISED_Autoneg);
ecmd->mdio_support = (efx->mdio.mode_support &
(MDIO_SUPPORTS_C45 | MDIO_SUPPORTS_C22));
BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
outbuf, sizeof(outbuf), NULL);
if (rc) {
EFX_ERR(efx, "%s: failed rc=%d\n", __func__, rc);
return;
}
ecmd->lp_advertising =
mcdi_to_ethtool_cap(phy_cfg->media,
MCDI_DWORD(outbuf, GET_LINK_OUT_LP_CAP));
}
static int efx_mcdi_phy_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
{
struct efx_mcdi_phy_cfg *phy_cfg = efx->phy_data;
u32 caps;
int rc;
if (ecmd->autoneg) {
caps = (ethtool_to_mcdi_cap(ecmd->advertising) |
1 << MC_CMD_PHY_CAP_AN_LBN);
} else if (ecmd->duplex) {
switch (ecmd->speed) {
case 10: caps = 1 << MC_CMD_PHY_CAP_10FDX_LBN; break;
case 100: caps = 1 << MC_CMD_PHY_CAP_100FDX_LBN; break;
case 1000: caps = 1 << MC_CMD_PHY_CAP_1000FDX_LBN; break;
case 10000: caps = 1 << MC_CMD_PHY_CAP_10000FDX_LBN; break;
default: return -EINVAL;
}
} else {
switch (ecmd->speed) {
case 10: caps = 1 << MC_CMD_PHY_CAP_10HDX_LBN; break;
case 100: caps = 1 << MC_CMD_PHY_CAP_100HDX_LBN; break;
case 1000: caps = 1 << MC_CMD_PHY_CAP_1000HDX_LBN; break;
default: return -EINVAL;
}
}
rc = efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx),
efx->loopback_mode, 0);
if (rc)
return rc;
if (ecmd->autoneg) {
efx_link_set_advertising(
efx, ecmd->advertising | ADVERTISED_Autoneg);
phy_cfg->forced_cap = 0;
} else {
efx_link_set_advertising(efx, 0);
phy_cfg->forced_cap = caps;
}
return 0;
}
static int efx_mcdi_phy_test_alive(struct efx_nic *efx)
{
u8 outbuf[MC_CMD_GET_PHY_STATE_OUT_LEN];
size_t outlen;
int rc;
BUILD_BUG_ON(MC_CMD_GET_PHY_STATE_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_STATE, NULL, 0,
outbuf, sizeof(outbuf), &outlen);
if (rc)
return rc;
if (outlen < MC_CMD_GET_PHY_STATE_OUT_LEN)
return -EMSGSIZE;
if (MCDI_DWORD(outbuf, GET_PHY_STATE_STATE) != MC_CMD_PHY_STATE_OK)
return -EINVAL;
return 0;
}
struct efx_phy_operations efx_mcdi_phy_ops = {
.probe = efx_mcdi_phy_probe,
.init = efx_port_dummy_op_int,
.reconfigure = efx_mcdi_phy_reconfigure,
.poll = efx_mcdi_phy_poll,
.fini = efx_port_dummy_op_void,
.remove = efx_mcdi_phy_remove,
.get_settings = efx_mcdi_phy_get_settings,
.set_settings = efx_mcdi_phy_set_settings,
.test_alive = efx_mcdi_phy_test_alive,
.run_tests = NULL,
.test_name = NULL,
};
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