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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-05-13 00:17:42 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-11 02:33:50 -0700
commit874aeea5d01cac55c160a4e503e3ddb4db030de7 (patch)
tree2ec67fc737ebc853d954b914a70098ece1ded19b /drivers/net/sfc/mcdi_phy.c
parente689cf4a042772f727450035b102579b0c01bdc7 (diff)
downloadblackbird-op-linux-874aeea5d01cac55c160a4e503e3ddb4db030de7.tar.gz
blackbird-op-linux-874aeea5d01cac55c160a4e503e3ddb4db030de7.zip
sfc: Move the Solarflare drivers
Moves the Solarflare drivers into drivers/net/ethernet/sfc/ and make the necessary Kconfig and Makefile changes. CC: Steve Hodgson <shodgson@solarflare.com> CC: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/sfc/mcdi_phy.c')
-rw-r--r--drivers/net/sfc/mcdi_phy.c754
1 files changed, 0 insertions, 754 deletions
diff --git a/drivers/net/sfc/mcdi_phy.c b/drivers/net/sfc/mcdi_phy.c
deleted file mode 100644
index 6c63ab0710af..000000000000
--- a/drivers/net/sfc/mcdi_phy.c
+++ /dev/null
@@ -1,754 +0,0 @@
-/****************************************************************************
- * Driver for Solarflare Solarstorm network controllers and boards
- * Copyright 2009-2010 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 <linux/slab.h>
-#include "efx.h"
-#include "phy.h"
-#include "mcdi.h"
-#include "mcdi_pcol.h"
-#include "nic.h"
-#include "selftest.h"
-
-struct efx_mcdi_phy_data {
- 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_data *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 = -EIO;
- 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:
- netif_err(efx, hw, efx->net_dev, "%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:
- netif_err(efx, hw, efx->net_dev, "%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 = -EIO;
- goto fail;
- }
-
- *loopback_modes = MCDI_QWORD(outbuf, GET_LOOPBACK_MODES_SUGGESTED);
-
- return 0;
-
-fail:
- netif_err(efx, hw, efx->net_dev, "%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:
- netif_err(efx, hw, efx->net_dev, "%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:
- netif_err(efx, hw, efx->net_dev, "%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_data *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_data *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;
- efx_link_set_wanted_fc(efx, efx->wanted_fc);
-
- return 0;
-
-fail:
- kfree(phy_data);
- 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_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_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_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_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_BIST_CABLE_SHORT_LBN)) {
- if ((flags & ETH_TEST_FL_OFFLINE) &&
- (phy_cfg->flags &
- (1 << MC_CMD_GET_PHY_CFG_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_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_BIST_LBN)) {
- if (index == 0)
- return "bist";
- --index;
- }
-
- if (phy_cfg->flags & ((1 << MC_CMD_GET_PHY_CFG_BIST_CABLE_SHORT_LBN) |
- (1 << MC_CMD_GET_PHY_CFG_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;
-}
-
-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,
-};
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