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https://github.com/edk2-porting/linux-next.git
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c087bd2cfd
Currently allows for SFP+ eeprom to be returned using the ethtool API. This can be extended in future to handle different eeprom formats and sizes Signed-off-by: Stuart Hodgson <smhodgson@solarflare.com> [bwh: Drop redundant validation, comment, whitespace] Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
831 lines
23 KiB
C
831 lines
23 KiB
C
/****************************************************************************
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* Driver for Solarflare Solarstorm network controllers and boards
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* Copyright 2009-2010 Solarflare Communications Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation, incorporated herein by reference.
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*/
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/*
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* Driver for PHY related operations via MCDI.
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*/
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#include <linux/slab.h>
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#include "efx.h"
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#include "phy.h"
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#include "mcdi.h"
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#include "mcdi_pcol.h"
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#include "nic.h"
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#include "selftest.h"
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struct efx_mcdi_phy_data {
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u32 flags;
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u32 type;
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u32 supported_cap;
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u32 channel;
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u32 port;
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u32 stats_mask;
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u8 name[20];
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u32 media;
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u32 mmd_mask;
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u8 revision[20];
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u32 forced_cap;
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};
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static int
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efx_mcdi_get_phy_cfg(struct efx_nic *efx, struct efx_mcdi_phy_data *cfg)
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{
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u8 outbuf[MC_CMD_GET_PHY_CFG_OUT_LEN];
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size_t outlen;
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int rc;
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BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_IN_LEN != 0);
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BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_OUT_NAME_LEN != sizeof(cfg->name));
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rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_CFG, NULL, 0,
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outbuf, sizeof(outbuf), &outlen);
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if (rc)
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goto fail;
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if (outlen < MC_CMD_GET_PHY_CFG_OUT_LEN) {
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rc = -EIO;
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goto fail;
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}
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cfg->flags = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_FLAGS);
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cfg->type = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_TYPE);
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cfg->supported_cap =
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MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_SUPPORTED_CAP);
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cfg->channel = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_CHANNEL);
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cfg->port = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_PRT);
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cfg->stats_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_STATS_MASK);
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memcpy(cfg->name, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_NAME),
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sizeof(cfg->name));
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cfg->media = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MEDIA_TYPE);
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cfg->mmd_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MMD_MASK);
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memcpy(cfg->revision, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_REVISION),
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sizeof(cfg->revision));
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return 0;
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fail:
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netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
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return rc;
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}
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static int efx_mcdi_set_link(struct efx_nic *efx, u32 capabilities,
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u32 flags, u32 loopback_mode,
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u32 loopback_speed)
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{
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u8 inbuf[MC_CMD_SET_LINK_IN_LEN];
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int rc;
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BUILD_BUG_ON(MC_CMD_SET_LINK_OUT_LEN != 0);
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MCDI_SET_DWORD(inbuf, SET_LINK_IN_CAP, capabilities);
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MCDI_SET_DWORD(inbuf, SET_LINK_IN_FLAGS, flags);
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MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_MODE, loopback_mode);
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MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_SPEED, loopback_speed);
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rc = efx_mcdi_rpc(efx, MC_CMD_SET_LINK, inbuf, sizeof(inbuf),
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NULL, 0, NULL);
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if (rc)
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goto fail;
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return 0;
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fail:
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netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
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return rc;
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}
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static int efx_mcdi_loopback_modes(struct efx_nic *efx, u64 *loopback_modes)
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{
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u8 outbuf[MC_CMD_GET_LOOPBACK_MODES_OUT_LEN];
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size_t outlen;
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int rc;
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rc = efx_mcdi_rpc(efx, MC_CMD_GET_LOOPBACK_MODES, NULL, 0,
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outbuf, sizeof(outbuf), &outlen);
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if (rc)
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goto fail;
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if (outlen < MC_CMD_GET_LOOPBACK_MODES_OUT_LEN) {
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rc = -EIO;
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goto fail;
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}
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*loopback_modes = MCDI_QWORD(outbuf, GET_LOOPBACK_MODES_OUT_SUGGESTED);
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return 0;
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fail:
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netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
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return rc;
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}
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int efx_mcdi_mdio_read(struct efx_nic *efx, unsigned int bus,
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unsigned int prtad, unsigned int devad, u16 addr,
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u16 *value_out, u32 *status_out)
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{
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u8 inbuf[MC_CMD_MDIO_READ_IN_LEN];
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u8 outbuf[MC_CMD_MDIO_READ_OUT_LEN];
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size_t outlen;
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int rc;
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MCDI_SET_DWORD(inbuf, MDIO_READ_IN_BUS, bus);
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MCDI_SET_DWORD(inbuf, MDIO_READ_IN_PRTAD, prtad);
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MCDI_SET_DWORD(inbuf, MDIO_READ_IN_DEVAD, devad);
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MCDI_SET_DWORD(inbuf, MDIO_READ_IN_ADDR, addr);
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rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_READ, inbuf, sizeof(inbuf),
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outbuf, sizeof(outbuf), &outlen);
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if (rc)
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goto fail;
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*value_out = (u16)MCDI_DWORD(outbuf, MDIO_READ_OUT_VALUE);
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*status_out = MCDI_DWORD(outbuf, MDIO_READ_OUT_STATUS);
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return 0;
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fail:
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netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
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return rc;
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}
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int efx_mcdi_mdio_write(struct efx_nic *efx, unsigned int bus,
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unsigned int prtad, unsigned int devad, u16 addr,
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u16 value, u32 *status_out)
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{
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u8 inbuf[MC_CMD_MDIO_WRITE_IN_LEN];
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u8 outbuf[MC_CMD_MDIO_WRITE_OUT_LEN];
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size_t outlen;
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int rc;
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MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_BUS, bus);
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MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_PRTAD, prtad);
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MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_DEVAD, devad);
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MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_ADDR, addr);
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MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_VALUE, value);
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rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_WRITE, inbuf, sizeof(inbuf),
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outbuf, sizeof(outbuf), &outlen);
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if (rc)
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goto fail;
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*status_out = MCDI_DWORD(outbuf, MDIO_WRITE_OUT_STATUS);
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return 0;
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fail:
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netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
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return rc;
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}
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static u32 mcdi_to_ethtool_cap(u32 media, u32 cap)
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{
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u32 result = 0;
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switch (media) {
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case MC_CMD_MEDIA_KX4:
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result |= SUPPORTED_Backplane;
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if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN))
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result |= SUPPORTED_1000baseKX_Full;
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if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN))
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result |= SUPPORTED_10000baseKX4_Full;
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break;
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case MC_CMD_MEDIA_XFP:
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case MC_CMD_MEDIA_SFP_PLUS:
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result |= SUPPORTED_FIBRE;
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break;
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case MC_CMD_MEDIA_BASE_T:
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result |= SUPPORTED_TP;
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if (cap & (1 << MC_CMD_PHY_CAP_10HDX_LBN))
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result |= SUPPORTED_10baseT_Half;
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if (cap & (1 << MC_CMD_PHY_CAP_10FDX_LBN))
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result |= SUPPORTED_10baseT_Full;
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if (cap & (1 << MC_CMD_PHY_CAP_100HDX_LBN))
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result |= SUPPORTED_100baseT_Half;
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if (cap & (1 << MC_CMD_PHY_CAP_100FDX_LBN))
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result |= SUPPORTED_100baseT_Full;
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if (cap & (1 << MC_CMD_PHY_CAP_1000HDX_LBN))
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result |= SUPPORTED_1000baseT_Half;
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if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN))
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result |= SUPPORTED_1000baseT_Full;
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if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN))
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result |= SUPPORTED_10000baseT_Full;
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break;
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}
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if (cap & (1 << MC_CMD_PHY_CAP_PAUSE_LBN))
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result |= SUPPORTED_Pause;
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if (cap & (1 << MC_CMD_PHY_CAP_ASYM_LBN))
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result |= SUPPORTED_Asym_Pause;
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if (cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
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result |= SUPPORTED_Autoneg;
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return result;
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}
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static u32 ethtool_to_mcdi_cap(u32 cap)
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{
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u32 result = 0;
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if (cap & SUPPORTED_10baseT_Half)
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result |= (1 << MC_CMD_PHY_CAP_10HDX_LBN);
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if (cap & SUPPORTED_10baseT_Full)
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result |= (1 << MC_CMD_PHY_CAP_10FDX_LBN);
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if (cap & SUPPORTED_100baseT_Half)
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result |= (1 << MC_CMD_PHY_CAP_100HDX_LBN);
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if (cap & SUPPORTED_100baseT_Full)
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result |= (1 << MC_CMD_PHY_CAP_100FDX_LBN);
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if (cap & SUPPORTED_1000baseT_Half)
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result |= (1 << MC_CMD_PHY_CAP_1000HDX_LBN);
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if (cap & (SUPPORTED_1000baseT_Full | SUPPORTED_1000baseKX_Full))
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result |= (1 << MC_CMD_PHY_CAP_1000FDX_LBN);
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if (cap & (SUPPORTED_10000baseT_Full | SUPPORTED_10000baseKX4_Full))
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result |= (1 << MC_CMD_PHY_CAP_10000FDX_LBN);
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if (cap & SUPPORTED_Pause)
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result |= (1 << MC_CMD_PHY_CAP_PAUSE_LBN);
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if (cap & SUPPORTED_Asym_Pause)
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result |= (1 << MC_CMD_PHY_CAP_ASYM_LBN);
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if (cap & SUPPORTED_Autoneg)
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result |= (1 << MC_CMD_PHY_CAP_AN_LBN);
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return result;
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}
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static u32 efx_get_mcdi_phy_flags(struct efx_nic *efx)
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{
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struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
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enum efx_phy_mode mode, supported;
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u32 flags;
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/* TODO: Advertise the capabilities supported by this PHY */
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supported = 0;
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if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_TXDIS_LBN))
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supported |= PHY_MODE_TX_DISABLED;
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if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_LOWPOWER_LBN))
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supported |= PHY_MODE_LOW_POWER;
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if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_POWEROFF_LBN))
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supported |= PHY_MODE_OFF;
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mode = efx->phy_mode & supported;
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flags = 0;
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if (mode & PHY_MODE_TX_DISABLED)
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flags |= (1 << MC_CMD_SET_LINK_IN_TXDIS_LBN);
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if (mode & PHY_MODE_LOW_POWER)
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flags |= (1 << MC_CMD_SET_LINK_IN_LOWPOWER_LBN);
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if (mode & PHY_MODE_OFF)
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flags |= (1 << MC_CMD_SET_LINK_IN_POWEROFF_LBN);
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return flags;
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}
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static u32 mcdi_to_ethtool_media(u32 media)
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{
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switch (media) {
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case MC_CMD_MEDIA_XAUI:
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case MC_CMD_MEDIA_CX4:
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case MC_CMD_MEDIA_KX4:
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return PORT_OTHER;
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case MC_CMD_MEDIA_XFP:
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case MC_CMD_MEDIA_SFP_PLUS:
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return PORT_FIBRE;
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case MC_CMD_MEDIA_BASE_T:
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return PORT_TP;
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default:
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return PORT_OTHER;
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}
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}
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static int efx_mcdi_phy_probe(struct efx_nic *efx)
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{
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struct efx_mcdi_phy_data *phy_data;
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u8 outbuf[MC_CMD_GET_LINK_OUT_LEN];
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u32 caps;
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int rc;
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/* Initialise and populate phy_data */
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phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL);
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if (phy_data == NULL)
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return -ENOMEM;
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rc = efx_mcdi_get_phy_cfg(efx, phy_data);
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if (rc != 0)
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goto fail;
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/* Read initial link advertisement */
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BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
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rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
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outbuf, sizeof(outbuf), NULL);
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if (rc)
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goto fail;
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/* Fill out nic state */
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efx->phy_data = phy_data;
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efx->phy_type = phy_data->type;
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efx->mdio_bus = phy_data->channel;
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efx->mdio.prtad = phy_data->port;
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efx->mdio.mmds = phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22);
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efx->mdio.mode_support = 0;
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if (phy_data->mmd_mask & (1 << MC_CMD_MMD_CLAUSE22))
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efx->mdio.mode_support |= MDIO_SUPPORTS_C22;
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if (phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22))
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efx->mdio.mode_support |= MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22;
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caps = MCDI_DWORD(outbuf, GET_LINK_OUT_CAP);
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if (caps & (1 << MC_CMD_PHY_CAP_AN_LBN))
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efx->link_advertising =
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mcdi_to_ethtool_cap(phy_data->media, caps);
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else
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phy_data->forced_cap = caps;
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/* Assert that we can map efx -> mcdi loopback modes */
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BUILD_BUG_ON(LOOPBACK_NONE != MC_CMD_LOOPBACK_NONE);
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BUILD_BUG_ON(LOOPBACK_DATA != MC_CMD_LOOPBACK_DATA);
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BUILD_BUG_ON(LOOPBACK_GMAC != MC_CMD_LOOPBACK_GMAC);
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BUILD_BUG_ON(LOOPBACK_XGMII != MC_CMD_LOOPBACK_XGMII);
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BUILD_BUG_ON(LOOPBACK_XGXS != MC_CMD_LOOPBACK_XGXS);
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BUILD_BUG_ON(LOOPBACK_XAUI != MC_CMD_LOOPBACK_XAUI);
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BUILD_BUG_ON(LOOPBACK_GMII != MC_CMD_LOOPBACK_GMII);
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BUILD_BUG_ON(LOOPBACK_SGMII != MC_CMD_LOOPBACK_SGMII);
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BUILD_BUG_ON(LOOPBACK_XGBR != MC_CMD_LOOPBACK_XGBR);
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BUILD_BUG_ON(LOOPBACK_XFI != MC_CMD_LOOPBACK_XFI);
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BUILD_BUG_ON(LOOPBACK_XAUI_FAR != MC_CMD_LOOPBACK_XAUI_FAR);
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BUILD_BUG_ON(LOOPBACK_GMII_FAR != MC_CMD_LOOPBACK_GMII_FAR);
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BUILD_BUG_ON(LOOPBACK_SGMII_FAR != MC_CMD_LOOPBACK_SGMII_FAR);
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BUILD_BUG_ON(LOOPBACK_XFI_FAR != MC_CMD_LOOPBACK_XFI_FAR);
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BUILD_BUG_ON(LOOPBACK_GPHY != MC_CMD_LOOPBACK_GPHY);
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BUILD_BUG_ON(LOOPBACK_PHYXS != MC_CMD_LOOPBACK_PHYXS);
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BUILD_BUG_ON(LOOPBACK_PCS != MC_CMD_LOOPBACK_PCS);
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BUILD_BUG_ON(LOOPBACK_PMAPMD != MC_CMD_LOOPBACK_PMAPMD);
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BUILD_BUG_ON(LOOPBACK_XPORT != MC_CMD_LOOPBACK_XPORT);
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BUILD_BUG_ON(LOOPBACK_XGMII_WS != MC_CMD_LOOPBACK_XGMII_WS);
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BUILD_BUG_ON(LOOPBACK_XAUI_WS != MC_CMD_LOOPBACK_XAUI_WS);
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BUILD_BUG_ON(LOOPBACK_XAUI_WS_FAR != MC_CMD_LOOPBACK_XAUI_WS_FAR);
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BUILD_BUG_ON(LOOPBACK_XAUI_WS_NEAR != MC_CMD_LOOPBACK_XAUI_WS_NEAR);
|
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BUILD_BUG_ON(LOOPBACK_GMII_WS != MC_CMD_LOOPBACK_GMII_WS);
|
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BUILD_BUG_ON(LOOPBACK_XFI_WS != MC_CMD_LOOPBACK_XFI_WS);
|
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BUILD_BUG_ON(LOOPBACK_XFI_WS_FAR != MC_CMD_LOOPBACK_XFI_WS_FAR);
|
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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,
|
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MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED),
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MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS),
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MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL));
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|
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/* Default to Autonegotiated flow control if the PHY supports it */
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efx->wanted_fc = EFX_FC_RX | EFX_FC_TX;
|
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if (phy_data->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
|
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efx->wanted_fc |= EFX_FC_AUTO;
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efx_link_set_wanted_fc(efx, efx->wanted_fc);
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|
|
return 0;
|
|
|
|
fail:
|
|
kfree(phy_data);
|
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return rc;
|
|
}
|
|
|
|
int efx_mcdi_phy_reconfigure(struct efx_nic *efx)
|
|
{
|
|
struct efx_mcdi_phy_data *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_OUT_LINK_UP_LBN));
|
|
link_state->fd = !!(flags & (1 << MC_CMD_GET_LINK_OUT_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_data *phy_cfg = efx->phy_data;
|
|
u32 rmtadv;
|
|
|
|
/* The link partner capabilities are only relevant 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)
|
|
netif_err(efx, link, efx->net_dev,
|
|
"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) {
|
|
netif_err(efx, hw, efx->net_dev, "%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_data *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;
|
|
ethtool_cmd_speed_set(ecmd, 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) {
|
|
netif_err(efx, hw, efx->net_dev, "%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_data *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 (ethtool_cmd_speed(ecmd)) {
|
|
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 (ethtool_cmd_speed(ecmd)) {
|
|
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 -EIO;
|
|
if (MCDI_DWORD(outbuf, GET_PHY_STATE_OUT_STATE) != MC_CMD_PHY_STATE_OK)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const char *const mcdi_sft9001_cable_diag_names[] = {
|
|
"cable.pairA.length",
|
|
"cable.pairB.length",
|
|
"cable.pairC.length",
|
|
"cable.pairD.length",
|
|
"cable.pairA.status",
|
|
"cable.pairB.status",
|
|
"cable.pairC.status",
|
|
"cable.pairD.status",
|
|
};
|
|
|
|
static int efx_mcdi_bist(struct efx_nic *efx, unsigned int bist_mode,
|
|
int *results)
|
|
{
|
|
unsigned int retry, i, count = 0;
|
|
size_t outlen;
|
|
u32 status;
|
|
u8 *buf, *ptr;
|
|
int rc;
|
|
|
|
buf = kzalloc(0x100, GFP_KERNEL);
|
|
if (buf == NULL)
|
|
return -ENOMEM;
|
|
|
|
BUILD_BUG_ON(MC_CMD_START_BIST_OUT_LEN != 0);
|
|
MCDI_SET_DWORD(buf, START_BIST_IN_TYPE, bist_mode);
|
|
rc = efx_mcdi_rpc(efx, MC_CMD_START_BIST, buf, MC_CMD_START_BIST_IN_LEN,
|
|
NULL, 0, NULL);
|
|
if (rc)
|
|
goto out;
|
|
|
|
/* Wait up to 10s for BIST to finish */
|
|
for (retry = 0; retry < 100; ++retry) {
|
|
BUILD_BUG_ON(MC_CMD_POLL_BIST_IN_LEN != 0);
|
|
rc = efx_mcdi_rpc(efx, MC_CMD_POLL_BIST, NULL, 0,
|
|
buf, 0x100, &outlen);
|
|
if (rc)
|
|
goto out;
|
|
|
|
status = MCDI_DWORD(buf, POLL_BIST_OUT_RESULT);
|
|
if (status != MC_CMD_POLL_BIST_RUNNING)
|
|
goto finished;
|
|
|
|
msleep(100);
|
|
}
|
|
|
|
rc = -ETIMEDOUT;
|
|
goto out;
|
|
|
|
finished:
|
|
results[count++] = (status == MC_CMD_POLL_BIST_PASSED) ? 1 : -1;
|
|
|
|
/* SFT9001 specific cable diagnostics output */
|
|
if (efx->phy_type == PHY_TYPE_SFT9001B &&
|
|
(bist_mode == MC_CMD_PHY_BIST_CABLE_SHORT ||
|
|
bist_mode == MC_CMD_PHY_BIST_CABLE_LONG)) {
|
|
ptr = MCDI_PTR(buf, POLL_BIST_OUT_SFT9001_CABLE_LENGTH_A);
|
|
if (status == MC_CMD_POLL_BIST_PASSED &&
|
|
outlen >= MC_CMD_POLL_BIST_OUT_SFT9001_LEN) {
|
|
for (i = 0; i < 8; i++) {
|
|
results[count + i] =
|
|
EFX_DWORD_FIELD(((efx_dword_t *)ptr)[i],
|
|
EFX_DWORD_0);
|
|
}
|
|
}
|
|
count += 8;
|
|
}
|
|
rc = count;
|
|
|
|
out:
|
|
kfree(buf);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int efx_mcdi_phy_run_tests(struct efx_nic *efx, int *results,
|
|
unsigned flags)
|
|
{
|
|
struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
|
|
u32 mode;
|
|
int rc;
|
|
|
|
if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN)) {
|
|
rc = efx_mcdi_bist(efx, MC_CMD_PHY_BIST, results);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
results += rc;
|
|
}
|
|
|
|
/* If we support both LONG and SHORT, then run each in response to
|
|
* break or not. Otherwise, run the one we support */
|
|
mode = 0;
|
|
if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN)) {
|
|
if ((flags & ETH_TEST_FL_OFFLINE) &&
|
|
(phy_cfg->flags &
|
|
(1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN)))
|
|
mode = MC_CMD_PHY_BIST_CABLE_LONG;
|
|
else
|
|
mode = MC_CMD_PHY_BIST_CABLE_SHORT;
|
|
} else if (phy_cfg->flags &
|
|
(1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN))
|
|
mode = MC_CMD_PHY_BIST_CABLE_LONG;
|
|
|
|
if (mode != 0) {
|
|
rc = efx_mcdi_bist(efx, mode, results);
|
|
if (rc < 0)
|
|
return rc;
|
|
results += rc;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const char *efx_mcdi_phy_test_name(struct efx_nic *efx,
|
|
unsigned int index)
|
|
{
|
|
struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
|
|
|
|
if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN)) {
|
|
if (index == 0)
|
|
return "bist";
|
|
--index;
|
|
}
|
|
|
|
if (phy_cfg->flags & ((1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN) |
|
|
(1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN))) {
|
|
if (index == 0)
|
|
return "cable";
|
|
--index;
|
|
|
|
if (efx->phy_type == PHY_TYPE_SFT9001B) {
|
|
if (index < ARRAY_SIZE(mcdi_sft9001_cable_diag_names))
|
|
return mcdi_sft9001_cable_diag_names[index];
|
|
index -= ARRAY_SIZE(mcdi_sft9001_cable_diag_names);
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
#define SFP_PAGE_SIZE 128
|
|
#define SFP_NUM_PAGES 2
|
|
static int efx_mcdi_phy_get_module_eeprom(struct efx_nic *efx,
|
|
struct ethtool_eeprom *ee, u8 *data)
|
|
{
|
|
u8 outbuf[MC_CMD_GET_PHY_MEDIA_INFO_OUT_LENMAX];
|
|
u8 inbuf[MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN];
|
|
size_t outlen;
|
|
int rc;
|
|
unsigned int payload_len;
|
|
unsigned int space_remaining = ee->len;
|
|
unsigned int page;
|
|
unsigned int page_off;
|
|
unsigned int to_copy;
|
|
u8 *user_data = data;
|
|
|
|
BUILD_BUG_ON(SFP_PAGE_SIZE * SFP_NUM_PAGES != ETH_MODULE_SFF_8079_LEN);
|
|
|
|
page_off = ee->offset % SFP_PAGE_SIZE;
|
|
page = ee->offset / SFP_PAGE_SIZE;
|
|
|
|
while (space_remaining && (page < SFP_NUM_PAGES)) {
|
|
MCDI_SET_DWORD(inbuf, GET_PHY_MEDIA_INFO_IN_PAGE, page);
|
|
|
|
rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_MEDIA_INFO,
|
|
inbuf, sizeof(inbuf),
|
|
outbuf, sizeof(outbuf),
|
|
&outlen);
|
|
if (rc)
|
|
return rc;
|
|
|
|
if (outlen < (MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_OFST +
|
|
SFP_PAGE_SIZE))
|
|
return -EIO;
|
|
|
|
payload_len = MCDI_DWORD(outbuf,
|
|
GET_PHY_MEDIA_INFO_OUT_DATALEN);
|
|
if (payload_len != SFP_PAGE_SIZE)
|
|
return -EIO;
|
|
|
|
/* Copy as much as we can into data */
|
|
payload_len -= page_off;
|
|
to_copy = (space_remaining < payload_len) ?
|
|
space_remaining : payload_len;
|
|
|
|
memcpy(user_data,
|
|
outbuf + page_off +
|
|
MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_OFST,
|
|
to_copy);
|
|
|
|
space_remaining -= to_copy;
|
|
user_data += to_copy;
|
|
page_off = 0;
|
|
page++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int efx_mcdi_phy_get_module_info(struct efx_nic *efx,
|
|
struct ethtool_modinfo *modinfo)
|
|
{
|
|
struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
|
|
|
|
switch (phy_cfg->media) {
|
|
case MC_CMD_MEDIA_SFP_PLUS:
|
|
modinfo->type = ETH_MODULE_SFF_8079;
|
|
modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
|
|
return 0;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
}
|
|
|
|
const 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 = efx_mcdi_phy_run_tests,
|
|
.test_name = efx_mcdi_phy_test_name,
|
|
.get_module_eeprom = efx_mcdi_phy_get_module_eeprom,
|
|
.get_module_info = efx_mcdi_phy_get_module_info,
|
|
};
|