1283 lines
37 KiB
C
1283 lines
37 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/****************************************************************************
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* Driver for Solarflare network controllers and boards
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* Copyright 2018 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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#include "mcdi_port_common.h"
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#include "efx_common.h"
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#include "nic.h"
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static int efx_mcdi_get_phy_cfg(struct efx_nic *efx,
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struct efx_mcdi_phy_data *cfg)
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{
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MCDI_DECLARE_BUF(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_siena_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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void efx_siena_link_set_advertising(struct efx_nic *efx,
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const unsigned long *advertising)
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{
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memcpy(efx->link_advertising, advertising,
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sizeof(__ETHTOOL_DECLARE_LINK_MODE_MASK()));
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efx->link_advertising[0] |= ADVERTISED_Autoneg;
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if (advertising[0] & ADVERTISED_Pause)
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efx->wanted_fc |= (EFX_FC_TX | EFX_FC_RX);
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else
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efx->wanted_fc &= ~(EFX_FC_TX | EFX_FC_RX);
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if (advertising[0] & ADVERTISED_Asym_Pause)
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efx->wanted_fc ^= EFX_FC_TX;
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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, u32 loopback_speed)
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{
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MCDI_DECLARE_BUF(inbuf, MC_CMD_SET_LINK_IN_LEN);
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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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return efx_siena_mcdi_rpc(efx, MC_CMD_SET_LINK, inbuf, sizeof(inbuf),
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NULL, 0, NULL);
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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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MCDI_DECLARE_BUF(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_siena_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_SUGGESTED_OFST +
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MC_CMD_GET_LOOPBACK_MODES_OUT_SUGGESTED_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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static void mcdi_to_ethtool_linkset(u32 media, u32 cap, unsigned long *linkset)
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{
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#define SET_BIT(name) __set_bit(ETHTOOL_LINK_MODE_ ## name ## _BIT, \
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linkset)
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bitmap_zero(linkset, __ETHTOOL_LINK_MODE_MASK_NBITS);
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switch (media) {
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case MC_CMD_MEDIA_KX4:
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SET_BIT(Backplane);
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if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN))
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SET_BIT(1000baseKX_Full);
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if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN))
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SET_BIT(10000baseKX4_Full);
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if (cap & (1 << MC_CMD_PHY_CAP_40000FDX_LBN))
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SET_BIT(40000baseKR4_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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case MC_CMD_MEDIA_QSFP_PLUS:
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SET_BIT(FIBRE);
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if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) {
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SET_BIT(1000baseT_Full);
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SET_BIT(1000baseX_Full);
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}
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if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) {
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SET_BIT(10000baseCR_Full);
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SET_BIT(10000baseLR_Full);
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SET_BIT(10000baseSR_Full);
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}
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if (cap & (1 << MC_CMD_PHY_CAP_40000FDX_LBN)) {
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SET_BIT(40000baseCR4_Full);
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SET_BIT(40000baseSR4_Full);
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}
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if (cap & (1 << MC_CMD_PHY_CAP_100000FDX_LBN)) {
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SET_BIT(100000baseCR4_Full);
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SET_BIT(100000baseSR4_Full);
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}
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if (cap & (1 << MC_CMD_PHY_CAP_25000FDX_LBN)) {
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SET_BIT(25000baseCR_Full);
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SET_BIT(25000baseSR_Full);
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}
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if (cap & (1 << MC_CMD_PHY_CAP_50000FDX_LBN))
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SET_BIT(50000baseCR2_Full);
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break;
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case MC_CMD_MEDIA_BASE_T:
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SET_BIT(TP);
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if (cap & (1 << MC_CMD_PHY_CAP_10HDX_LBN))
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SET_BIT(10baseT_Half);
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if (cap & (1 << MC_CMD_PHY_CAP_10FDX_LBN))
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SET_BIT(10baseT_Full);
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if (cap & (1 << MC_CMD_PHY_CAP_100HDX_LBN))
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SET_BIT(100baseT_Half);
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if (cap & (1 << MC_CMD_PHY_CAP_100FDX_LBN))
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SET_BIT(100baseT_Full);
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if (cap & (1 << MC_CMD_PHY_CAP_1000HDX_LBN))
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SET_BIT(1000baseT_Half);
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if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN))
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SET_BIT(1000baseT_Full);
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if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN))
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SET_BIT(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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SET_BIT(Pause);
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if (cap & (1 << MC_CMD_PHY_CAP_ASYM_LBN))
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SET_BIT(Asym_Pause);
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if (cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
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SET_BIT(Autoneg);
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#undef SET_BIT
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}
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static u32 ethtool_linkset_to_mcdi_cap(const unsigned long *linkset)
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{
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u32 result = 0;
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#define TEST_BIT(name) test_bit(ETHTOOL_LINK_MODE_ ## name ## _BIT, \
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linkset)
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if (TEST_BIT(10baseT_Half))
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result |= (1 << MC_CMD_PHY_CAP_10HDX_LBN);
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if (TEST_BIT(10baseT_Full))
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result |= (1 << MC_CMD_PHY_CAP_10FDX_LBN);
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if (TEST_BIT(100baseT_Half))
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result |= (1 << MC_CMD_PHY_CAP_100HDX_LBN);
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if (TEST_BIT(100baseT_Full))
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result |= (1 << MC_CMD_PHY_CAP_100FDX_LBN);
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if (TEST_BIT(1000baseT_Half))
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result |= (1 << MC_CMD_PHY_CAP_1000HDX_LBN);
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if (TEST_BIT(1000baseT_Full) || TEST_BIT(1000baseKX_Full) ||
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TEST_BIT(1000baseX_Full))
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result |= (1 << MC_CMD_PHY_CAP_1000FDX_LBN);
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if (TEST_BIT(10000baseT_Full) || TEST_BIT(10000baseKX4_Full) ||
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TEST_BIT(10000baseCR_Full) || TEST_BIT(10000baseLR_Full) ||
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TEST_BIT(10000baseSR_Full))
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result |= (1 << MC_CMD_PHY_CAP_10000FDX_LBN);
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if (TEST_BIT(40000baseCR4_Full) || TEST_BIT(40000baseKR4_Full) ||
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TEST_BIT(40000baseSR4_Full))
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result |= (1 << MC_CMD_PHY_CAP_40000FDX_LBN);
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if (TEST_BIT(100000baseCR4_Full) || TEST_BIT(100000baseSR4_Full))
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result |= (1 << MC_CMD_PHY_CAP_100000FDX_LBN);
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if (TEST_BIT(25000baseCR_Full) || TEST_BIT(25000baseSR_Full))
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result |= (1 << MC_CMD_PHY_CAP_25000FDX_LBN);
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if (TEST_BIT(50000baseCR2_Full))
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result |= (1 << MC_CMD_PHY_CAP_50000FDX_LBN);
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if (TEST_BIT(Pause))
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result |= (1 << MC_CMD_PHY_CAP_PAUSE_LBN);
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if (TEST_BIT(Asym_Pause))
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result |= (1 << MC_CMD_PHY_CAP_ASYM_LBN);
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if (TEST_BIT(Autoneg))
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result |= (1 << MC_CMD_PHY_CAP_AN_LBN);
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#undef TEST_BIT
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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 u8 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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case MC_CMD_MEDIA_QSFP_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 void efx_mcdi_phy_decode_link(struct efx_nic *efx,
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struct efx_link_state *link_state,
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u32 speed, u32 flags, u32 fcntl)
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{
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switch (fcntl) {
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case MC_CMD_FCNTL_AUTO:
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WARN_ON(1); /* This is not a link mode */
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link_state->fc = EFX_FC_AUTO | EFX_FC_TX | EFX_FC_RX;
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break;
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case MC_CMD_FCNTL_BIDIR:
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link_state->fc = EFX_FC_TX | EFX_FC_RX;
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break;
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case MC_CMD_FCNTL_RESPOND:
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link_state->fc = EFX_FC_RX;
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break;
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default:
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WARN_ON(1);
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fallthrough;
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case MC_CMD_FCNTL_OFF:
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link_state->fc = 0;
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break;
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}
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link_state->up = !!(flags & (1 << MC_CMD_GET_LINK_OUT_LINK_UP_LBN));
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link_state->fd = !!(flags & (1 << MC_CMD_GET_LINK_OUT_FULL_DUPLEX_LBN));
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link_state->speed = speed;
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}
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/* The semantics of the ethtool FEC mode bitmask are not well defined,
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* particularly the meaning of combinations of bits. Which means we get to
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* define our own semantics, as follows:
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* OFF overrides any other bits, and means "disable all FEC" (with the
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* exception of 25G KR4/CR4, where it is not possible to reject it if AN
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* partner requests it).
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* AUTO on its own means use cable requirements and link partner autoneg with
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* fw-default preferences for the cable type.
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* AUTO and either RS or BASER means use the specified FEC type if cable and
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* link partner support it, otherwise autoneg/fw-default.
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* RS or BASER alone means use the specified FEC type if cable and link partner
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* support it and either requests it, otherwise no FEC.
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* Both RS and BASER (whether AUTO or not) means use FEC if cable and link
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* partner support it, preferring RS to BASER.
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*/
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static u32 ethtool_fec_caps_to_mcdi(u32 supported_cap, u32 ethtool_cap)
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{
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u32 ret = 0;
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if (ethtool_cap & ETHTOOL_FEC_OFF)
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return 0;
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if (ethtool_cap & ETHTOOL_FEC_AUTO)
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ret |= ((1 << MC_CMD_PHY_CAP_BASER_FEC_LBN) |
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(1 << MC_CMD_PHY_CAP_25G_BASER_FEC_LBN) |
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(1 << MC_CMD_PHY_CAP_RS_FEC_LBN)) & supported_cap;
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if (ethtool_cap & ETHTOOL_FEC_RS &&
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supported_cap & (1 << MC_CMD_PHY_CAP_RS_FEC_LBN))
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ret |= (1 << MC_CMD_PHY_CAP_RS_FEC_LBN) |
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(1 << MC_CMD_PHY_CAP_RS_FEC_REQUESTED_LBN);
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if (ethtool_cap & ETHTOOL_FEC_BASER) {
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if (supported_cap & (1 << MC_CMD_PHY_CAP_BASER_FEC_LBN))
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ret |= (1 << MC_CMD_PHY_CAP_BASER_FEC_LBN) |
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(1 << MC_CMD_PHY_CAP_BASER_FEC_REQUESTED_LBN);
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if (supported_cap & (1 << MC_CMD_PHY_CAP_25G_BASER_FEC_LBN))
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ret |= (1 << MC_CMD_PHY_CAP_25G_BASER_FEC_LBN) |
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(1 << MC_CMD_PHY_CAP_25G_BASER_FEC_REQUESTED_LBN);
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}
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return ret;
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}
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/* Invert ethtool_fec_caps_to_mcdi. There are two combinations that function
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* can never produce, (baser xor rs) and neither req; the implementation below
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* maps both of those to AUTO. This should never matter, and it's not clear
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* what a better mapping would be anyway.
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*/
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static u32 mcdi_fec_caps_to_ethtool(u32 caps, bool is_25g)
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{
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bool rs = caps & (1 << MC_CMD_PHY_CAP_RS_FEC_LBN),
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rs_req = caps & (1 << MC_CMD_PHY_CAP_RS_FEC_REQUESTED_LBN),
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baser = is_25g ? caps & (1 << MC_CMD_PHY_CAP_25G_BASER_FEC_LBN)
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: caps & (1 << MC_CMD_PHY_CAP_BASER_FEC_LBN),
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baser_req = is_25g ? caps & (1 << MC_CMD_PHY_CAP_25G_BASER_FEC_REQUESTED_LBN)
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: caps & (1 << MC_CMD_PHY_CAP_BASER_FEC_REQUESTED_LBN);
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if (!baser && !rs)
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return ETHTOOL_FEC_OFF;
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return (rs_req ? ETHTOOL_FEC_RS : 0) |
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(baser_req ? ETHTOOL_FEC_BASER : 0) |
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(baser == baser_req && rs == rs_req ? 0 : ETHTOOL_FEC_AUTO);
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}
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/* Verify that the forced flow control settings (!EFX_FC_AUTO) are
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* supported by the link partner. Warn the user if this isn't the case
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*/
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static void efx_mcdi_phy_check_fcntl(struct efx_nic *efx, u32 lpa)
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{
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struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
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u32 rmtadv;
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/* The link partner capabilities are only relevant if the
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* link supports flow control autonegotiation
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*/
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if (~phy_cfg->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
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return;
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/* If flow control autoneg is supported and enabled, then fine */
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if (efx->wanted_fc & EFX_FC_AUTO)
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return;
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rmtadv = 0;
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if (lpa & (1 << MC_CMD_PHY_CAP_PAUSE_LBN))
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rmtadv |= ADVERTISED_Pause;
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if (lpa & (1 << MC_CMD_PHY_CAP_ASYM_LBN))
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rmtadv |= ADVERTISED_Asym_Pause;
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if ((efx->wanted_fc & EFX_FC_TX) && rmtadv == ADVERTISED_Asym_Pause)
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netif_err(efx, link, efx->net_dev,
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"warning: link partner doesn't support pause frames");
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}
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bool efx_siena_mcdi_phy_poll(struct efx_nic *efx)
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{
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struct efx_link_state old_state = efx->link_state;
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MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN);
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int rc;
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WARN_ON(!mutex_is_locked(&efx->mac_lock));
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BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
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rc = efx_siena_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
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|
outbuf, sizeof(outbuf), NULL);
|
|
if (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);
|
|
}
|
|
|
|
int efx_siena_mcdi_phy_probe(struct efx_nic *efx)
|
|
{
|
|
struct efx_mcdi_phy_data *phy_data;
|
|
MCDI_DECLARE_BUF(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_siena_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))
|
|
mcdi_to_ethtool_linkset(phy_data->media, caps,
|
|
efx->link_advertising);
|
|
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));
|
|
|
|
/* Record the initial FEC configuration (or nearest approximation
|
|
* representable in the ethtool configuration space)
|
|
*/
|
|
efx->fec_config = mcdi_fec_caps_to_ethtool(caps,
|
|
efx->link_state.speed == 25000 ||
|
|
efx->link_state.speed == 50000);
|
|
|
|
/* 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_siena_link_set_wanted_fc(efx, efx->wanted_fc);
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
kfree(phy_data);
|
|
return rc;
|
|
}
|
|
|
|
void efx_siena_mcdi_phy_remove(struct efx_nic *efx)
|
|
{
|
|
struct efx_mcdi_phy_data *phy_data = efx->phy_data;
|
|
|
|
efx->phy_data = NULL;
|
|
kfree(phy_data);
|
|
}
|
|
|
|
void efx_siena_mcdi_phy_get_link_ksettings(struct efx_nic *efx,
|
|
struct ethtool_link_ksettings *cmd)
|
|
{
|
|
struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
|
|
MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN);
|
|
int rc;
|
|
|
|
cmd->base.speed = efx->link_state.speed;
|
|
cmd->base.duplex = efx->link_state.fd;
|
|
cmd->base.port = mcdi_to_ethtool_media(phy_cfg->media);
|
|
cmd->base.phy_address = phy_cfg->port;
|
|
cmd->base.autoneg = !!(efx->link_advertising[0] & ADVERTISED_Autoneg);
|
|
cmd->base.mdio_support = (efx->mdio.mode_support &
|
|
(MDIO_SUPPORTS_C45 | MDIO_SUPPORTS_C22));
|
|
|
|
mcdi_to_ethtool_linkset(phy_cfg->media, phy_cfg->supported_cap,
|
|
cmd->link_modes.supported);
|
|
memcpy(cmd->link_modes.advertising, efx->link_advertising,
|
|
sizeof(__ETHTOOL_DECLARE_LINK_MODE_MASK()));
|
|
|
|
BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
|
|
rc = efx_siena_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
|
|
outbuf, sizeof(outbuf), NULL);
|
|
if (rc)
|
|
return;
|
|
mcdi_to_ethtool_linkset(phy_cfg->media,
|
|
MCDI_DWORD(outbuf, GET_LINK_OUT_LP_CAP),
|
|
cmd->link_modes.lp_advertising);
|
|
}
|
|
|
|
int
|
|
efx_siena_mcdi_phy_set_link_ksettings(struct efx_nic *efx,
|
|
const struct ethtool_link_ksettings *cmd)
|
|
{
|
|
struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
|
|
u32 caps;
|
|
int rc;
|
|
|
|
if (cmd->base.autoneg) {
|
|
caps = (ethtool_linkset_to_mcdi_cap(cmd->link_modes.advertising) |
|
|
1 << MC_CMD_PHY_CAP_AN_LBN);
|
|
} else if (cmd->base.duplex) {
|
|
switch (cmd->base.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;
|
|
case 40000: caps = 1 << MC_CMD_PHY_CAP_40000FDX_LBN; break;
|
|
case 100000: caps = 1 << MC_CMD_PHY_CAP_100000FDX_LBN; break;
|
|
case 25000: caps = 1 << MC_CMD_PHY_CAP_25000FDX_LBN; break;
|
|
case 50000: caps = 1 << MC_CMD_PHY_CAP_50000FDX_LBN; break;
|
|
default: return -EINVAL;
|
|
}
|
|
} else {
|
|
switch (cmd->base.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;
|
|
}
|
|
}
|
|
|
|
caps |= ethtool_fec_caps_to_mcdi(phy_cfg->supported_cap, efx->fec_config);
|
|
|
|
rc = efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx),
|
|
efx->loopback_mode, 0);
|
|
if (rc)
|
|
return rc;
|
|
|
|
if (cmd->base.autoneg) {
|
|
efx_siena_link_set_advertising(efx, cmd->link_modes.advertising);
|
|
phy_cfg->forced_cap = 0;
|
|
} else {
|
|
efx_siena_link_clear_advertising(efx);
|
|
phy_cfg->forced_cap = caps;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int efx_siena_mcdi_phy_get_fecparam(struct efx_nic *efx,
|
|
struct ethtool_fecparam *fec)
|
|
{
|
|
MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_V2_LEN);
|
|
u32 caps, active, speed; /* MCDI format */
|
|
bool is_25g = false;
|
|
size_t outlen;
|
|
int rc;
|
|
|
|
BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
|
|
rc = efx_siena_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
|
|
outbuf, sizeof(outbuf), &outlen);
|
|
if (rc)
|
|
return rc;
|
|
if (outlen < MC_CMD_GET_LINK_OUT_V2_LEN)
|
|
return -EOPNOTSUPP;
|
|
|
|
/* behaviour for 25G/50G links depends on 25G BASER bit */
|
|
speed = MCDI_DWORD(outbuf, GET_LINK_OUT_V2_LINK_SPEED);
|
|
is_25g = speed == 25000 || speed == 50000;
|
|
|
|
caps = MCDI_DWORD(outbuf, GET_LINK_OUT_V2_CAP);
|
|
fec->fec = mcdi_fec_caps_to_ethtool(caps, is_25g);
|
|
/* BASER is never supported on 100G */
|
|
if (speed == 100000)
|
|
fec->fec &= ~ETHTOOL_FEC_BASER;
|
|
|
|
active = MCDI_DWORD(outbuf, GET_LINK_OUT_V2_FEC_TYPE);
|
|
switch (active) {
|
|
case MC_CMD_FEC_NONE:
|
|
fec->active_fec = ETHTOOL_FEC_OFF;
|
|
break;
|
|
case MC_CMD_FEC_BASER:
|
|
fec->active_fec = ETHTOOL_FEC_BASER;
|
|
break;
|
|
case MC_CMD_FEC_RS:
|
|
fec->active_fec = ETHTOOL_FEC_RS;
|
|
break;
|
|
default:
|
|
netif_warn(efx, hw, efx->net_dev,
|
|
"Firmware reports unrecognised FEC_TYPE %u\n",
|
|
active);
|
|
/* We don't know what firmware has picked. AUTO is as good a
|
|
* "can't happen" value as any other.
|
|
*/
|
|
fec->active_fec = ETHTOOL_FEC_AUTO;
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Basic validation to ensure that the caps we are going to attempt to set are
|
|
* in fact supported by the adapter. Note that 'no FEC' is always supported.
|
|
*/
|
|
static int ethtool_fec_supported(u32 supported_cap, u32 ethtool_cap)
|
|
{
|
|
if (ethtool_cap & ETHTOOL_FEC_OFF)
|
|
return 0;
|
|
|
|
if (ethtool_cap &&
|
|
!ethtool_fec_caps_to_mcdi(supported_cap, ethtool_cap))
|
|
return -EINVAL;
|
|
return 0;
|
|
}
|
|
|
|
int efx_siena_mcdi_phy_set_fecparam(struct efx_nic *efx,
|
|
const struct ethtool_fecparam *fec)
|
|
{
|
|
struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
|
|
u32 caps;
|
|
int rc;
|
|
|
|
rc = ethtool_fec_supported(phy_cfg->supported_cap, fec->fec);
|
|
if (rc)
|
|
return rc;
|
|
|
|
/* Work out what efx_siena_mcdi_phy_set_link_ksettings() would produce from
|
|
* saved advertising bits
|
|
*/
|
|
if (test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, efx->link_advertising))
|
|
caps = (ethtool_linkset_to_mcdi_cap(efx->link_advertising) |
|
|
1 << MC_CMD_PHY_CAP_AN_LBN);
|
|
else
|
|
caps = phy_cfg->forced_cap;
|
|
|
|
caps |= ethtool_fec_caps_to_mcdi(phy_cfg->supported_cap, fec->fec);
|
|
rc = efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx),
|
|
efx->loopback_mode, 0);
|
|
if (rc)
|
|
return rc;
|
|
|
|
/* Record the new FEC setting for subsequent set_link calls */
|
|
efx->fec_config = fec->fec;
|
|
return 0;
|
|
}
|
|
|
|
int efx_siena_mcdi_phy_test_alive(struct efx_nic *efx)
|
|
{
|
|
MCDI_DECLARE_BUF(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_siena_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;
|
|
}
|
|
|
|
int efx_siena_mcdi_port_reconfigure(struct efx_nic *efx)
|
|
{
|
|
struct efx_mcdi_phy_data *phy_cfg = efx->phy_data;
|
|
u32 caps = (efx->link_advertising[0] ?
|
|
ethtool_linkset_to_mcdi_cap(efx->link_advertising) :
|
|
phy_cfg->forced_cap);
|
|
|
|
caps |= ethtool_fec_caps_to_mcdi(phy_cfg->supported_cap, efx->fec_config);
|
|
|
|
return efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx),
|
|
efx->loopback_mode, 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;
|
|
MCDI_DECLARE_BUF(inbuf, MC_CMD_START_BIST_IN_LEN);
|
|
MCDI_DECLARE_BUF(outbuf, MC_CMD_POLL_BIST_OUT_SFT9001_LEN);
|
|
u8 *ptr;
|
|
int rc;
|
|
|
|
BUILD_BUG_ON(MC_CMD_START_BIST_OUT_LEN != 0);
|
|
MCDI_SET_DWORD(inbuf, START_BIST_IN_TYPE, bist_mode);
|
|
rc = efx_siena_mcdi_rpc(efx, MC_CMD_START_BIST, inbuf,
|
|
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_siena_mcdi_rpc(efx, MC_CMD_POLL_BIST, NULL, 0,
|
|
outbuf, sizeof(outbuf), &outlen);
|
|
if (rc)
|
|
goto out;
|
|
|
|
status = MCDI_DWORD(outbuf, 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(outbuf, 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:
|
|
return rc;
|
|
}
|
|
|
|
int efx_siena_mcdi_phy_run_tests(struct efx_nic *efx, int *results,
|
|
unsigned int 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;
|
|
}
|
|
|
|
const char *efx_siena_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 SFF_DIAG_TYPE_OFFSET 92
|
|
#define SFF_DIAG_ADDR_CHANGE BIT(2)
|
|
#define SFF_8079_NUM_PAGES 2
|
|
#define SFF_8472_NUM_PAGES 4
|
|
#define SFF_8436_NUM_PAGES 5
|
|
#define SFF_DMT_LEVEL_OFFSET 94
|
|
|
|
/** efx_mcdi_phy_get_module_eeprom_page() - Get a single page of module eeprom
|
|
* @efx: NIC context
|
|
* @page: EEPROM page number
|
|
* @data: Destination data pointer
|
|
* @offset: Offset in page to copy from in to data
|
|
* @space: Space available in data
|
|
*
|
|
* Return:
|
|
* >=0 - amount of data copied
|
|
* <0 - error
|
|
*/
|
|
static int efx_mcdi_phy_get_module_eeprom_page(struct efx_nic *efx,
|
|
unsigned int page,
|
|
u8 *data, ssize_t offset,
|
|
ssize_t space)
|
|
{
|
|
MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_MEDIA_INFO_OUT_LENMAX);
|
|
MCDI_DECLARE_BUF(inbuf, MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN);
|
|
unsigned int payload_len;
|
|
unsigned int to_copy;
|
|
size_t outlen;
|
|
int rc;
|
|
|
|
if (offset > SFP_PAGE_SIZE)
|
|
return -EINVAL;
|
|
|
|
to_copy = min(space, SFP_PAGE_SIZE - offset);
|
|
|
|
MCDI_SET_DWORD(inbuf, GET_PHY_MEDIA_INFO_IN_PAGE, page);
|
|
rc = efx_siena_mcdi_rpc_quiet(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;
|
|
|
|
memcpy(data, MCDI_PTR(outbuf, GET_PHY_MEDIA_INFO_OUT_DATA) + offset,
|
|
to_copy);
|
|
|
|
return to_copy;
|
|
}
|
|
|
|
static int efx_mcdi_phy_get_module_eeprom_byte(struct efx_nic *efx,
|
|
unsigned int page,
|
|
u8 byte)
|
|
{
|
|
u8 data;
|
|
int rc;
|
|
|
|
rc = efx_mcdi_phy_get_module_eeprom_page(efx, page, &data, byte, 1);
|
|
if (rc == 1)
|
|
return data;
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int efx_mcdi_phy_diag_type(struct efx_nic *efx)
|
|
{
|
|
/* Page zero of the EEPROM includes the diagnostic type at byte 92. */
|
|
return efx_mcdi_phy_get_module_eeprom_byte(efx, 0,
|
|
SFF_DIAG_TYPE_OFFSET);
|
|
}
|
|
|
|
static int efx_mcdi_phy_sff_8472_level(struct efx_nic *efx)
|
|
{
|
|
/* Page zero of the EEPROM includes the DMT level at byte 94. */
|
|
return efx_mcdi_phy_get_module_eeprom_byte(efx, 0,
|
|
SFF_DMT_LEVEL_OFFSET);
|
|
}
|
|
|
|
static u32 efx_mcdi_phy_module_type(struct efx_nic *efx)
|
|
{
|
|
struct efx_mcdi_phy_data *phy_data = efx->phy_data;
|
|
|
|
if (phy_data->media != MC_CMD_MEDIA_QSFP_PLUS)
|
|
return phy_data->media;
|
|
|
|
/* A QSFP+ NIC may actually have an SFP+ module attached.
|
|
* The ID is page 0, byte 0.
|
|
*/
|
|
switch (efx_mcdi_phy_get_module_eeprom_byte(efx, 0, 0)) {
|
|
case 0x3:
|
|
return MC_CMD_MEDIA_SFP_PLUS;
|
|
case 0xc:
|
|
case 0xd:
|
|
return MC_CMD_MEDIA_QSFP_PLUS;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int efx_siena_mcdi_phy_get_module_eeprom(struct efx_nic *efx,
|
|
struct ethtool_eeprom *ee, u8 *data)
|
|
{
|
|
int rc;
|
|
ssize_t space_remaining = ee->len;
|
|
unsigned int page_off;
|
|
bool ignore_missing;
|
|
int num_pages;
|
|
int page;
|
|
|
|
switch (efx_mcdi_phy_module_type(efx)) {
|
|
case MC_CMD_MEDIA_SFP_PLUS:
|
|
num_pages = efx_mcdi_phy_sff_8472_level(efx) > 0 ?
|
|
SFF_8472_NUM_PAGES : SFF_8079_NUM_PAGES;
|
|
page = 0;
|
|
ignore_missing = false;
|
|
break;
|
|
case MC_CMD_MEDIA_QSFP_PLUS:
|
|
num_pages = SFF_8436_NUM_PAGES;
|
|
page = -1; /* We obtain the lower page by asking for -1. */
|
|
ignore_missing = true; /* Ignore missing pages after page 0. */
|
|
break;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
page_off = ee->offset % SFP_PAGE_SIZE;
|
|
page += ee->offset / SFP_PAGE_SIZE;
|
|
|
|
while (space_remaining && (page < num_pages)) {
|
|
rc = efx_mcdi_phy_get_module_eeprom_page(efx, page,
|
|
data, page_off,
|
|
space_remaining);
|
|
|
|
if (rc > 0) {
|
|
space_remaining -= rc;
|
|
data += rc;
|
|
page_off = 0;
|
|
page++;
|
|
} else if (rc == 0) {
|
|
space_remaining = 0;
|
|
} else if (ignore_missing && (page > 0)) {
|
|
int intended_size = SFP_PAGE_SIZE - page_off;
|
|
|
|
space_remaining -= intended_size;
|
|
if (space_remaining < 0) {
|
|
space_remaining = 0;
|
|
} else {
|
|
memset(data, 0, intended_size);
|
|
data += intended_size;
|
|
page_off = 0;
|
|
page++;
|
|
rc = 0;
|
|
}
|
|
} else {
|
|
return rc;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int efx_siena_mcdi_phy_get_module_info(struct efx_nic *efx, struct ethtool_modinfo *modinfo)
|
|
{
|
|
int sff_8472_level;
|
|
int diag_type;
|
|
|
|
switch (efx_mcdi_phy_module_type(efx)) {
|
|
case MC_CMD_MEDIA_SFP_PLUS:
|
|
sff_8472_level = efx_mcdi_phy_sff_8472_level(efx);
|
|
|
|
/* If we can't read the diagnostics level we have none. */
|
|
if (sff_8472_level < 0)
|
|
return -EOPNOTSUPP;
|
|
|
|
/* Check if this module requires the (unsupported) address
|
|
* change operation.
|
|
*/
|
|
diag_type = efx_mcdi_phy_diag_type(efx);
|
|
|
|
if (sff_8472_level == 0 ||
|
|
(diag_type & SFF_DIAG_ADDR_CHANGE)) {
|
|
modinfo->type = ETH_MODULE_SFF_8079;
|
|
modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
|
|
} else {
|
|
modinfo->type = ETH_MODULE_SFF_8472;
|
|
modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
|
|
}
|
|
break;
|
|
|
|
case MC_CMD_MEDIA_QSFP_PLUS:
|
|
modinfo->type = ETH_MODULE_SFF_8436;
|
|
modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
|
|
break;
|
|
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static unsigned int efx_calc_mac_mtu(struct efx_nic *efx)
|
|
{
|
|
return EFX_MAX_FRAME_LEN(efx->net_dev->mtu);
|
|
}
|
|
|
|
int efx_siena_mcdi_set_mac(struct efx_nic *efx)
|
|
{
|
|
u32 fcntl;
|
|
MCDI_DECLARE_BUF(cmdbytes, MC_CMD_SET_MAC_IN_LEN);
|
|
|
|
BUILD_BUG_ON(MC_CMD_SET_MAC_OUT_LEN != 0);
|
|
|
|
/* This has no effect on EF10 */
|
|
ether_addr_copy(MCDI_PTR(cmdbytes, SET_MAC_IN_ADDR),
|
|
efx->net_dev->dev_addr);
|
|
|
|
MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_MTU, efx_calc_mac_mtu(efx));
|
|
MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_DRAIN, 0);
|
|
|
|
/* Set simple MAC filter for Siena */
|
|
MCDI_POPULATE_DWORD_1(cmdbytes, SET_MAC_IN_REJECT,
|
|
SET_MAC_IN_REJECT_UNCST, efx->unicast_filter);
|
|
|
|
MCDI_POPULATE_DWORD_1(cmdbytes, SET_MAC_IN_FLAGS,
|
|
SET_MAC_IN_FLAG_INCLUDE_FCS,
|
|
!!(efx->net_dev->features & NETIF_F_RXFCS));
|
|
|
|
switch (efx->wanted_fc) {
|
|
case EFX_FC_RX | EFX_FC_TX:
|
|
fcntl = MC_CMD_FCNTL_BIDIR;
|
|
break;
|
|
case EFX_FC_RX:
|
|
fcntl = MC_CMD_FCNTL_RESPOND;
|
|
break;
|
|
default:
|
|
fcntl = MC_CMD_FCNTL_OFF;
|
|
break;
|
|
}
|
|
if (efx->wanted_fc & EFX_FC_AUTO)
|
|
fcntl = MC_CMD_FCNTL_AUTO;
|
|
if (efx->fc_disable)
|
|
fcntl = MC_CMD_FCNTL_OFF;
|
|
|
|
MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_FCNTL, fcntl);
|
|
|
|
return efx_siena_mcdi_rpc(efx, MC_CMD_SET_MAC, cmdbytes,
|
|
sizeof(cmdbytes), NULL, 0, NULL);
|
|
}
|
|
|
|
enum efx_stats_action {
|
|
EFX_STATS_ENABLE,
|
|
EFX_STATS_DISABLE,
|
|
EFX_STATS_PULL,
|
|
};
|
|
|
|
static int efx_mcdi_mac_stats(struct efx_nic *efx,
|
|
enum efx_stats_action action, int clear)
|
|
{
|
|
MCDI_DECLARE_BUF(inbuf, MC_CMD_MAC_STATS_IN_LEN);
|
|
int rc;
|
|
int change = action == EFX_STATS_PULL ? 0 : 1;
|
|
int enable = action == EFX_STATS_ENABLE ? 1 : 0;
|
|
int period = action == EFX_STATS_ENABLE ? 1000 : 0;
|
|
dma_addr_t dma_addr = efx->stats_buffer.dma_addr;
|
|
u32 dma_len = action != EFX_STATS_DISABLE ?
|
|
efx->num_mac_stats * sizeof(u64) : 0;
|
|
|
|
BUILD_BUG_ON(MC_CMD_MAC_STATS_OUT_DMA_LEN != 0);
|
|
|
|
MCDI_SET_QWORD(inbuf, MAC_STATS_IN_DMA_ADDR, dma_addr);
|
|
MCDI_POPULATE_DWORD_7(inbuf, MAC_STATS_IN_CMD,
|
|
MAC_STATS_IN_DMA, !!enable,
|
|
MAC_STATS_IN_CLEAR, clear,
|
|
MAC_STATS_IN_PERIODIC_CHANGE, change,
|
|
MAC_STATS_IN_PERIODIC_ENABLE, enable,
|
|
MAC_STATS_IN_PERIODIC_CLEAR, 0,
|
|
MAC_STATS_IN_PERIODIC_NOEVENT, 1,
|
|
MAC_STATS_IN_PERIOD_MS, period);
|
|
MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_LEN, dma_len);
|
|
|
|
if (efx_nic_rev(efx) >= EFX_REV_HUNT_A0)
|
|
MCDI_SET_DWORD(inbuf, MAC_STATS_IN_PORT_ID, efx->vport_id);
|
|
|
|
rc = efx_siena_mcdi_rpc_quiet(efx, MC_CMD_MAC_STATS, inbuf,
|
|
sizeof(inbuf), NULL, 0, NULL);
|
|
/* Expect ENOENT if DMA queues have not been set up */
|
|
if (rc && (rc != -ENOENT || atomic_read(&efx->active_queues)))
|
|
efx_siena_mcdi_display_error(efx, MC_CMD_MAC_STATS,
|
|
sizeof(inbuf), NULL, 0, rc);
|
|
return rc;
|
|
}
|
|
|
|
void efx_siena_mcdi_mac_start_stats(struct efx_nic *efx)
|
|
{
|
|
__le64 *dma_stats = efx->stats_buffer.addr;
|
|
|
|
dma_stats[efx->num_mac_stats - 1] = EFX_MC_STATS_GENERATION_INVALID;
|
|
|
|
efx_mcdi_mac_stats(efx, EFX_STATS_ENABLE, 0);
|
|
}
|
|
|
|
void efx_siena_mcdi_mac_stop_stats(struct efx_nic *efx)
|
|
{
|
|
efx_mcdi_mac_stats(efx, EFX_STATS_DISABLE, 0);
|
|
}
|
|
|
|
#define EFX_MAC_STATS_WAIT_US 100
|
|
#define EFX_MAC_STATS_WAIT_ATTEMPTS 10
|
|
|
|
void efx_siena_mcdi_mac_pull_stats(struct efx_nic *efx)
|
|
{
|
|
__le64 *dma_stats = efx->stats_buffer.addr;
|
|
int attempts = EFX_MAC_STATS_WAIT_ATTEMPTS;
|
|
|
|
dma_stats[efx->num_mac_stats - 1] = EFX_MC_STATS_GENERATION_INVALID;
|
|
efx_mcdi_mac_stats(efx, EFX_STATS_PULL, 0);
|
|
|
|
while (dma_stats[efx->num_mac_stats - 1] ==
|
|
EFX_MC_STATS_GENERATION_INVALID &&
|
|
attempts-- != 0)
|
|
udelay(EFX_MAC_STATS_WAIT_US);
|
|
}
|
|
|
|
int efx_siena_mcdi_mac_init_stats(struct efx_nic *efx)
|
|
{
|
|
int rc;
|
|
|
|
if (!efx->num_mac_stats)
|
|
return 0;
|
|
|
|
/* Allocate buffer for stats */
|
|
rc = efx_siena_alloc_buffer(efx, &efx->stats_buffer,
|
|
efx->num_mac_stats * sizeof(u64),
|
|
GFP_KERNEL);
|
|
if (rc) {
|
|
netif_warn(efx, probe, efx->net_dev,
|
|
"failed to allocate DMA buffer: %d\n", rc);
|
|
return rc;
|
|
}
|
|
|
|
netif_dbg(efx, probe, efx->net_dev,
|
|
"stats buffer at %llx (virt %p phys %llx)\n",
|
|
(u64) efx->stats_buffer.dma_addr,
|
|
efx->stats_buffer.addr,
|
|
(u64) virt_to_phys(efx->stats_buffer.addr));
|
|
|
|
return 0;
|
|
}
|
|
|
|
void efx_siena_mcdi_mac_fini_stats(struct efx_nic *efx)
|
|
{
|
|
efx_siena_free_buffer(efx, &efx->stats_buffer);
|
|
}
|
|
|
|
static unsigned int efx_mcdi_event_link_speed[] = {
|
|
[MCDI_EVENT_LINKCHANGE_SPEED_100M] = 100,
|
|
[MCDI_EVENT_LINKCHANGE_SPEED_1G] = 1000,
|
|
[MCDI_EVENT_LINKCHANGE_SPEED_10G] = 10000,
|
|
[MCDI_EVENT_LINKCHANGE_SPEED_40G] = 40000,
|
|
[MCDI_EVENT_LINKCHANGE_SPEED_25G] = 25000,
|
|
[MCDI_EVENT_LINKCHANGE_SPEED_50G] = 50000,
|
|
[MCDI_EVENT_LINKCHANGE_SPEED_100G] = 100000,
|
|
};
|
|
|
|
void efx_siena_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev)
|
|
{
|
|
u32 flags, fcntl, speed, lpa;
|
|
|
|
speed = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_SPEED);
|
|
EFX_WARN_ON_PARANOID(speed >= ARRAY_SIZE(efx_mcdi_event_link_speed));
|
|
speed = efx_mcdi_event_link_speed[speed];
|
|
|
|
flags = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LINK_FLAGS);
|
|
fcntl = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_FCNTL);
|
|
lpa = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LP_CAP);
|
|
|
|
/* efx->link_state is only modified by efx_mcdi_phy_get_link(),
|
|
* which is only run after flushing the event queues. Therefore, it
|
|
* is safe to modify the link state outside of the mac_lock here.
|
|
*/
|
|
efx_mcdi_phy_decode_link(efx, &efx->link_state, speed, flags, fcntl);
|
|
|
|
efx_mcdi_phy_check_fcntl(efx, lpa);
|
|
|
|
efx_siena_link_status_changed(efx);
|
|
}
|