diff options
Diffstat (limited to 'drivers/net/ethernet/freescale/enetc/enetc_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/enetc_ethtool.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c b/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c new file mode 100644 index 000000000000..41771edada97 --- /dev/null +++ b/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c @@ -0,0 +1,137 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) +/* Copyright 2017-2019 NXP */ + +#include <linux/net_tstamp.h> +#include <linux/module.h> +#include "enetc.h" + +static const u32 enetc_si_regs[] = { + ENETC_SIMR, ENETC_SIPMAR0, ENETC_SIPMAR1, ENETC_SICBDRMR, + ENETC_SICBDRSR, ENETC_SICBDRBAR0, ENETC_SICBDRBAR1, ENETC_SICBDRPIR, + ENETC_SICBDRCIR, ENETC_SICBDRLENR, ENETC_SICAPR0, ENETC_SICAPR1, + ENETC_SIUEFDCR +}; + +static const u32 enetc_txbdr_regs[] = { + ENETC_TBMR, ENETC_TBSR, ENETC_TBBAR0, ENETC_TBBAR1, + ENETC_TBPIR, ENETC_TBCIR, ENETC_TBLENR, ENETC_TBIER +}; + +static const u32 enetc_rxbdr_regs[] = { + ENETC_RBMR, ENETC_RBSR, ENETC_RBBSR, ENETC_RBCIR, ENETC_RBBAR0, + ENETC_RBBAR1, ENETC_RBPIR, ENETC_RBLENR, ENETC_RBICIR0, ENETC_RBIER +}; + +static const u32 enetc_port_regs[] = { + ENETC_PMR, ENETC_PSR, ENETC_PSIPMR, ENETC_PSIPMAR0(0), + ENETC_PSIPMAR1(0), ENETC_PTXMBAR, ENETC_PCAPR0, ENETC_PCAPR1, + ENETC_PSICFGR0(0), ENETC_PTCMSDUR(0), ENETC_PM0_CMD_CFG, + ENETC_PM0_MAXFRM, ENETC_PM0_IF_MODE +}; + +static int enetc_get_reglen(struct net_device *ndev) +{ + struct enetc_ndev_priv *priv = netdev_priv(ndev); + struct enetc_hw *hw = &priv->si->hw; + int len; + + len = ARRAY_SIZE(enetc_si_regs); + len += ARRAY_SIZE(enetc_txbdr_regs) * priv->num_tx_rings; + len += ARRAY_SIZE(enetc_rxbdr_regs) * priv->num_rx_rings; + + if (hw->port) + len += ARRAY_SIZE(enetc_port_regs); + + len *= sizeof(u32) * 2; /* store 2 entries per reg: addr and value */ + + return len; +} + +static void enetc_get_regs(struct net_device *ndev, struct ethtool_regs *regs, + void *regbuf) +{ + struct enetc_ndev_priv *priv = netdev_priv(ndev); + struct enetc_hw *hw = &priv->si->hw; + u32 *buf = (u32 *)regbuf; + int i, j; + u32 addr; + + for (i = 0; i < ARRAY_SIZE(enetc_si_regs); i++) { + *buf++ = enetc_si_regs[i]; + *buf++ = enetc_rd(hw, enetc_si_regs[i]); + } + + for (i = 0; i < priv->num_tx_rings; i++) { + for (j = 0; j < ARRAY_SIZE(enetc_txbdr_regs); j++) { + addr = ENETC_BDR(TX, i, enetc_txbdr_regs[j]); + + *buf++ = addr; + *buf++ = enetc_rd(hw, addr); + } + } + + for (i = 0; i < priv->num_rx_rings; i++) { + for (j = 0; j < ARRAY_SIZE(enetc_rxbdr_regs); j++) { + addr = ENETC_BDR(RX, i, enetc_rxbdr_regs[j]); + + *buf++ = addr; + *buf++ = enetc_rd(hw, addr); + } + } + + if (!hw->port) + return; + + for (i = 0; i < ARRAY_SIZE(enetc_port_regs); i++) { + addr = ENETC_PORT_BASE + enetc_port_regs[i]; + *buf++ = addr; + *buf++ = enetc_rd(hw, addr); + } +} + +static void enetc_get_ringparam(struct net_device *ndev, + struct ethtool_ringparam *ring) +{ + struct enetc_ndev_priv *priv = netdev_priv(ndev); + + ring->rx_pending = priv->rx_bd_count; + ring->tx_pending = priv->tx_bd_count; + + /* do some h/w sanity checks for BDR length */ + if (netif_running(ndev)) { + struct enetc_hw *hw = &priv->si->hw; + u32 val = enetc_rxbdr_rd(hw, 0, ENETC_RBLENR); + + if (val != priv->rx_bd_count) + netif_err(priv, hw, ndev, "RxBDR[RBLENR] = %d!\n", val); + + val = enetc_txbdr_rd(hw, 0, ENETC_TBLENR); + + if (val != priv->tx_bd_count) + netif_err(priv, hw, ndev, "TxBDR[TBLENR] = %d!\n", val); + } +} + +static const struct ethtool_ops enetc_pf_ethtool_ops = { + .get_regs_len = enetc_get_reglen, + .get_regs = enetc_get_regs, + .get_ringparam = enetc_get_ringparam, + .get_link_ksettings = phy_ethtool_get_link_ksettings, + .set_link_ksettings = phy_ethtool_set_link_ksettings, +}; + +static const struct ethtool_ops enetc_vf_ethtool_ops = { + .get_regs_len = enetc_get_reglen, + .get_regs = enetc_get_regs, + .get_ringparam = enetc_get_ringparam, +}; + +void enetc_set_ethtool_ops(struct net_device *ndev) +{ + struct enetc_ndev_priv *priv = netdev_priv(ndev); + + if (enetc_si_is_pf(priv->si)) + ndev->ethtool_ops = &enetc_pf_ethtool_ops; + else + ndev->ethtool_ops = &enetc_vf_ethtool_ops; +} |