diff options
Diffstat (limited to 'drivers/net/ethernet/freescale/gianfar_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/freescale/gianfar_ethtool.c | 1516 |
1 files changed, 1516 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/gianfar_ethtool.c b/drivers/net/ethernet/freescale/gianfar_ethtool.c new file mode 100644 index 000000000..b2b0d3c26 --- /dev/null +++ b/drivers/net/ethernet/freescale/gianfar_ethtool.c @@ -0,0 +1,1516 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * drivers/net/ethernet/freescale/gianfar_ethtool.c + * + * Gianfar Ethernet Driver + * Ethtool support for Gianfar Enet + * Based on e1000 ethtool support + * + * Author: Andy Fleming + * Maintainer: Kumar Gala + * Modifier: Sandeep Gopalpet <sandeep.kumar@freescale.com> + * + * Copyright 2003-2006, 2008-2009, 2011 Freescale Semiconductor, Inc. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/errno.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/net_tstamp.h> +#include <linux/skbuff.h> +#include <linux/spinlock.h> +#include <linux/mm.h> + +#include <asm/io.h> +#include <asm/irq.h> +#include <linux/uaccess.h> +#include <linux/module.h> +#include <linux/crc32.h> +#include <asm/types.h> +#include <linux/ethtool.h> +#include <linux/mii.h> +#include <linux/phy.h> +#include <linux/sort.h> +#include <linux/if_vlan.h> +#include <linux/of_platform.h> +#include <linux/fsl/ptp_qoriq.h> + +#include "gianfar.h" + +#define GFAR_MAX_COAL_USECS 0xffff +#define GFAR_MAX_COAL_FRAMES 0xff + +static const char stat_gstrings[][ETH_GSTRING_LEN] = { + /* extra stats */ + "rx-allocation-errors", + "rx-large-frame-errors", + "rx-short-frame-errors", + "rx-non-octet-errors", + "rx-crc-errors", + "rx-overrun-errors", + "rx-busy-errors", + "rx-babbling-errors", + "rx-truncated-frames", + "ethernet-bus-error", + "tx-babbling-errors", + "tx-underrun-errors", + "tx-timeout-errors", + /* rmon stats */ + "tx-rx-64-frames", + "tx-rx-65-127-frames", + "tx-rx-128-255-frames", + "tx-rx-256-511-frames", + "tx-rx-512-1023-frames", + "tx-rx-1024-1518-frames", + "tx-rx-1519-1522-good-vlan", + "rx-bytes", + "rx-packets", + "rx-fcs-errors", + "receive-multicast-packet", + "receive-broadcast-packet", + "rx-control-frame-packets", + "rx-pause-frame-packets", + "rx-unknown-op-code", + "rx-alignment-error", + "rx-frame-length-error", + "rx-code-error", + "rx-carrier-sense-error", + "rx-undersize-packets", + "rx-oversize-packets", + "rx-fragmented-frames", + "rx-jabber-frames", + "rx-dropped-frames", + "tx-byte-counter", + "tx-packets", + "tx-multicast-packets", + "tx-broadcast-packets", + "tx-pause-control-frames", + "tx-deferral-packets", + "tx-excessive-deferral-packets", + "tx-single-collision-packets", + "tx-multiple-collision-packets", + "tx-late-collision-packets", + "tx-excessive-collision-packets", + "tx-total-collision", + "reserved", + "tx-dropped-frames", + "tx-jabber-frames", + "tx-fcs-errors", + "tx-control-frames", + "tx-oversize-frames", + "tx-undersize-frames", + "tx-fragmented-frames", +}; + +/* Fill in a buffer with the strings which correspond to the + * stats */ +static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf) +{ + struct gfar_private *priv = netdev_priv(dev); + + if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) + memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN); + else + memcpy(buf, stat_gstrings, + GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN); +} + +/* Fill in an array of 64-bit statistics from various sources. + * This array will be appended to the end of the ethtool_stats + * structure, and returned to user space + */ +static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, + u64 *buf) +{ + int i; + struct gfar_private *priv = netdev_priv(dev); + struct gfar __iomem *regs = priv->gfargrp[0].regs; + atomic64_t *extra = (atomic64_t *)&priv->extra_stats; + + for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++) + buf[i] = atomic64_read(&extra[i]); + + if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) { + u32 __iomem *rmon = (u32 __iomem *) ®s->rmon; + + for (; i < GFAR_STATS_LEN; i++, rmon++) + buf[i] = (u64) gfar_read(rmon); + } +} + +static int gfar_sset_count(struct net_device *dev, int sset) +{ + struct gfar_private *priv = netdev_priv(dev); + + switch (sset) { + case ETH_SS_STATS: + if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) + return GFAR_STATS_LEN; + else + return GFAR_EXTRA_STATS_LEN; + default: + return -EOPNOTSUPP; + } +} + +/* Fills in the drvinfo structure with some basic info */ +static void gfar_gdrvinfo(struct net_device *dev, + struct ethtool_drvinfo *drvinfo) +{ + strscpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); +} + +/* Return the length of the register structure */ +static int gfar_reglen(struct net_device *dev) +{ + return sizeof (struct gfar); +} + +/* Return a dump of the GFAR register space */ +static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, + void *regbuf) +{ + int i; + struct gfar_private *priv = netdev_priv(dev); + u32 __iomem *theregs = (u32 __iomem *) priv->gfargrp[0].regs; + u32 *buf = (u32 *) regbuf; + + for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++) + buf[i] = gfar_read(&theregs[i]); +} + +/* Convert microseconds to ethernet clock ticks, which changes + * depending on what speed the controller is running at */ +static unsigned int gfar_usecs2ticks(struct gfar_private *priv, + unsigned int usecs) +{ + struct net_device *ndev = priv->ndev; + struct phy_device *phydev = ndev->phydev; + unsigned int count; + + /* The timer is different, depending on the interface speed */ + switch (phydev->speed) { + case SPEED_1000: + count = GFAR_GBIT_TIME; + break; + case SPEED_100: + count = GFAR_100_TIME; + break; + case SPEED_10: + default: + count = GFAR_10_TIME; + break; + } + + /* Make sure we return a number greater than 0 + * if usecs > 0 */ + return DIV_ROUND_UP(usecs * 1000, count); +} + +/* Convert ethernet clock ticks to microseconds */ +static unsigned int gfar_ticks2usecs(struct gfar_private *priv, + unsigned int ticks) +{ + struct net_device *ndev = priv->ndev; + struct phy_device *phydev = ndev->phydev; + unsigned int count; + + /* The timer is different, depending on the interface speed */ + switch (phydev->speed) { + case SPEED_1000: + count = GFAR_GBIT_TIME; + break; + case SPEED_100: + count = GFAR_100_TIME; + break; + case SPEED_10: + default: + count = GFAR_10_TIME; + break; + } + + /* Make sure we return a number greater than 0 */ + /* if ticks is > 0 */ + return (ticks * count) / 1000; +} + +/* Get the coalescing parameters, and put them in the cvals + * structure. */ +static int gfar_gcoalesce(struct net_device *dev, + struct ethtool_coalesce *cvals, + struct kernel_ethtool_coalesce *kernel_coal, + struct netlink_ext_ack *extack) +{ + struct gfar_private *priv = netdev_priv(dev); + struct gfar_priv_rx_q *rx_queue = NULL; + struct gfar_priv_tx_q *tx_queue = NULL; + unsigned long rxtime; + unsigned long rxcount; + unsigned long txtime; + unsigned long txcount; + + if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) + return -EOPNOTSUPP; + + if (!dev->phydev) + return -ENODEV; + + rx_queue = priv->rx_queue[0]; + tx_queue = priv->tx_queue[0]; + + rxtime = get_ictt_value(rx_queue->rxic); + rxcount = get_icft_value(rx_queue->rxic); + txtime = get_ictt_value(tx_queue->txic); + txcount = get_icft_value(tx_queue->txic); + cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, rxtime); + cvals->rx_max_coalesced_frames = rxcount; + + cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, txtime); + cvals->tx_max_coalesced_frames = txcount; + + return 0; +} + +/* Change the coalescing values. + * Both cvals->*_usecs and cvals->*_frames have to be > 0 + * in order for coalescing to be active + */ +static int gfar_scoalesce(struct net_device *dev, + struct ethtool_coalesce *cvals, + struct kernel_ethtool_coalesce *kernel_coal, + struct netlink_ext_ack *extack) +{ + struct gfar_private *priv = netdev_priv(dev); + int i, err = 0; + + if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) + return -EOPNOTSUPP; + + if (!dev->phydev) + return -ENODEV; + + /* Check the bounds of the values */ + if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) { + netdev_info(dev, "Coalescing is limited to %d microseconds\n", + GFAR_MAX_COAL_USECS); + return -EINVAL; + } + + if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) { + netdev_info(dev, "Coalescing is limited to %d frames\n", + GFAR_MAX_COAL_FRAMES); + return -EINVAL; + } + + /* Check the bounds of the values */ + if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) { + netdev_info(dev, "Coalescing is limited to %d microseconds\n", + GFAR_MAX_COAL_USECS); + return -EINVAL; + } + + if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) { + netdev_info(dev, "Coalescing is limited to %d frames\n", + GFAR_MAX_COAL_FRAMES); + return -EINVAL; + } + + while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state)) + cpu_relax(); + + /* Set up rx coalescing */ + if ((cvals->rx_coalesce_usecs == 0) || + (cvals->rx_max_coalesced_frames == 0)) { + for (i = 0; i < priv->num_rx_queues; i++) + priv->rx_queue[i]->rxcoalescing = 0; + } else { + for (i = 0; i < priv->num_rx_queues; i++) + priv->rx_queue[i]->rxcoalescing = 1; + } + + for (i = 0; i < priv->num_rx_queues; i++) { + priv->rx_queue[i]->rxic = mk_ic_value( + cvals->rx_max_coalesced_frames, + gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs)); + } + + /* Set up tx coalescing */ + if ((cvals->tx_coalesce_usecs == 0) || + (cvals->tx_max_coalesced_frames == 0)) { + for (i = 0; i < priv->num_tx_queues; i++) + priv->tx_queue[i]->txcoalescing = 0; + } else { + for (i = 0; i < priv->num_tx_queues; i++) + priv->tx_queue[i]->txcoalescing = 1; + } + + for (i = 0; i < priv->num_tx_queues; i++) { + priv->tx_queue[i]->txic = mk_ic_value( + cvals->tx_max_coalesced_frames, + gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs)); + } + + if (dev->flags & IFF_UP) { + stop_gfar(dev); + err = startup_gfar(dev); + } else { + gfar_mac_reset(priv); + } + + clear_bit_unlock(GFAR_RESETTING, &priv->state); + + return err; +} + +/* Fills in rvals with the current ring parameters. Currently, + * rx, rx_mini, and rx_jumbo rings are the same size, as mini and + * jumbo are ignored by the driver */ +static void gfar_gringparam(struct net_device *dev, + struct ethtool_ringparam *rvals, + struct kernel_ethtool_ringparam *kernel_rvals, + struct netlink_ext_ack *extack) +{ + struct gfar_private *priv = netdev_priv(dev); + struct gfar_priv_tx_q *tx_queue = NULL; + struct gfar_priv_rx_q *rx_queue = NULL; + + tx_queue = priv->tx_queue[0]; + rx_queue = priv->rx_queue[0]; + + rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE; + rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE; + rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE; + rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE; + + /* Values changeable by the user. The valid values are + * in the range 1 to the "*_max_pending" counterpart above. + */ + rvals->rx_pending = rx_queue->rx_ring_size; + rvals->rx_mini_pending = rx_queue->rx_ring_size; + rvals->rx_jumbo_pending = rx_queue->rx_ring_size; + rvals->tx_pending = tx_queue->tx_ring_size; +} + +/* Change the current ring parameters, stopping the controller if + * necessary so that we don't mess things up while we're in motion. + */ +static int gfar_sringparam(struct net_device *dev, + struct ethtool_ringparam *rvals, + struct kernel_ethtool_ringparam *kernel_rvals, + struct netlink_ext_ack *extack) +{ + struct gfar_private *priv = netdev_priv(dev); + int err = 0, i; + + if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE) + return -EINVAL; + + if (!is_power_of_2(rvals->rx_pending)) { + netdev_err(dev, "Ring sizes must be a power of 2\n"); + return -EINVAL; + } + + if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE) + return -EINVAL; + + if (!is_power_of_2(rvals->tx_pending)) { + netdev_err(dev, "Ring sizes must be a power of 2\n"); + return -EINVAL; + } + + while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state)) + cpu_relax(); + + if (dev->flags & IFF_UP) + stop_gfar(dev); + + /* Change the sizes */ + for (i = 0; i < priv->num_rx_queues; i++) + priv->rx_queue[i]->rx_ring_size = rvals->rx_pending; + + for (i = 0; i < priv->num_tx_queues; i++) + priv->tx_queue[i]->tx_ring_size = rvals->tx_pending; + + /* Rebuild the rings with the new size */ + if (dev->flags & IFF_UP) + err = startup_gfar(dev); + + clear_bit_unlock(GFAR_RESETTING, &priv->state); + + return err; +} + +static void gfar_gpauseparam(struct net_device *dev, + struct ethtool_pauseparam *epause) +{ + struct gfar_private *priv = netdev_priv(dev); + + epause->autoneg = !!priv->pause_aneg_en; + epause->rx_pause = !!priv->rx_pause_en; + epause->tx_pause = !!priv->tx_pause_en; +} + +static int gfar_spauseparam(struct net_device *dev, + struct ethtool_pauseparam *epause) +{ + struct gfar_private *priv = netdev_priv(dev); + struct phy_device *phydev = dev->phydev; + struct gfar __iomem *regs = priv->gfargrp[0].regs; + + if (!phydev) + return -ENODEV; + + if (!phy_validate_pause(phydev, epause)) + return -EINVAL; + + priv->rx_pause_en = priv->tx_pause_en = 0; + phy_set_asym_pause(phydev, epause->rx_pause, epause->tx_pause); + if (epause->rx_pause) { + priv->rx_pause_en = 1; + + if (epause->tx_pause) { + priv->tx_pause_en = 1; + } + } else if (epause->tx_pause) { + priv->tx_pause_en = 1; + } + + if (epause->autoneg) + priv->pause_aneg_en = 1; + else + priv->pause_aneg_en = 0; + + if (!epause->autoneg) { + u32 tempval = gfar_read(®s->maccfg1); + + tempval &= ~(MACCFG1_TX_FLOW | MACCFG1_RX_FLOW); + + priv->tx_actual_en = 0; + if (priv->tx_pause_en) { + priv->tx_actual_en = 1; + tempval |= MACCFG1_TX_FLOW; + } + + if (priv->rx_pause_en) + tempval |= MACCFG1_RX_FLOW; + gfar_write(®s->maccfg1, tempval); + } + + return 0; +} + +int gfar_set_features(struct net_device *dev, netdev_features_t features) +{ + netdev_features_t changed = dev->features ^ features; + struct gfar_private *priv = netdev_priv(dev); + int err = 0; + + if (!(changed & (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | + NETIF_F_RXCSUM))) + return 0; + + while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state)) + cpu_relax(); + + dev->features = features; + + if (dev->flags & IFF_UP) { + /* Now we take down the rings to rebuild them */ + stop_gfar(dev); + err = startup_gfar(dev); + } else { + gfar_mac_reset(priv); + } + + clear_bit_unlock(GFAR_RESETTING, &priv->state); + + return err; +} + +static uint32_t gfar_get_msglevel(struct net_device *dev) +{ + struct gfar_private *priv = netdev_priv(dev); + + return priv->msg_enable; +} + +static void gfar_set_msglevel(struct net_device *dev, uint32_t data) +{ + struct gfar_private *priv = netdev_priv(dev); + + priv->msg_enable = data; +} + +#ifdef CONFIG_PM +static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + struct gfar_private *priv = netdev_priv(dev); + + wol->supported = 0; + wol->wolopts = 0; + + if (priv->wol_supported & GFAR_WOL_MAGIC) + wol->supported |= WAKE_MAGIC; + + if (priv->wol_supported & GFAR_WOL_FILER_UCAST) + wol->supported |= WAKE_UCAST; + + if (priv->wol_opts & GFAR_WOL_MAGIC) + wol->wolopts |= WAKE_MAGIC; + + if (priv->wol_opts & GFAR_WOL_FILER_UCAST) + wol->wolopts |= WAKE_UCAST; +} + +static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + struct gfar_private *priv = netdev_priv(dev); + u16 wol_opts = 0; + int err; + + if (!priv->wol_supported && wol->wolopts) + return -EINVAL; + + if (wol->wolopts & ~(WAKE_MAGIC | WAKE_UCAST)) + return -EINVAL; + + if (wol->wolopts & WAKE_MAGIC) { + wol_opts |= GFAR_WOL_MAGIC; + } else { + if (wol->wolopts & WAKE_UCAST) + wol_opts |= GFAR_WOL_FILER_UCAST; + } + + wol_opts &= priv->wol_supported; + priv->wol_opts = 0; + + err = device_set_wakeup_enable(priv->dev, wol_opts); + if (err) + return err; + + priv->wol_opts = wol_opts; + + return 0; +} +#endif + +static void ethflow_to_filer_rules (struct gfar_private *priv, u64 ethflow) +{ + u32 fcr = 0x0, fpr = FPR_FILER_MASK; + + if (ethflow & RXH_L2DA) { + fcr = RQFCR_PID_DAH | RQFCR_CMP_NOMATCH | + RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0; + priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; + priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; + gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); + priv->cur_filer_idx = priv->cur_filer_idx - 1; + + fcr = RQFCR_PID_DAL | RQFCR_CMP_NOMATCH | + RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0; + priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; + priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; + gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); + priv->cur_filer_idx = priv->cur_filer_idx - 1; + } + + if (ethflow & RXH_VLAN) { + fcr = RQFCR_PID_VID | RQFCR_CMP_NOMATCH | RQFCR_HASH | + RQFCR_AND | RQFCR_HASHTBL_0; + gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); + priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; + priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; + priv->cur_filer_idx = priv->cur_filer_idx - 1; + } + + if (ethflow & RXH_IP_SRC) { + fcr = RQFCR_PID_SIA | RQFCR_CMP_NOMATCH | RQFCR_HASH | + RQFCR_AND | RQFCR_HASHTBL_0; + priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; + priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; + gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); + priv->cur_filer_idx = priv->cur_filer_idx - 1; + } + + if (ethflow & (RXH_IP_DST)) { + fcr = RQFCR_PID_DIA | RQFCR_CMP_NOMATCH | RQFCR_HASH | + RQFCR_AND | RQFCR_HASHTBL_0; + priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; + priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; + gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); + priv->cur_filer_idx = priv->cur_filer_idx - 1; + } + + if (ethflow & RXH_L3_PROTO) { + fcr = RQFCR_PID_L4P | RQFCR_CMP_NOMATCH | RQFCR_HASH | + RQFCR_AND | RQFCR_HASHTBL_0; + priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; + priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; + gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); + priv->cur_filer_idx = priv->cur_filer_idx - 1; + } + + if (ethflow & RXH_L4_B_0_1) { + fcr = RQFCR_PID_SPT | RQFCR_CMP_NOMATCH | RQFCR_HASH | + RQFCR_AND | RQFCR_HASHTBL_0; + priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; + priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; + gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); + priv->cur_filer_idx = priv->cur_filer_idx - 1; + } + + if (ethflow & RXH_L4_B_2_3) { + fcr = RQFCR_PID_DPT | RQFCR_CMP_NOMATCH | RQFCR_HASH | + RQFCR_AND | RQFCR_HASHTBL_0; + priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; + priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; + gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); + priv->cur_filer_idx = priv->cur_filer_idx - 1; + } +} + +static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow, + u64 class) +{ + unsigned int cmp_rqfpr; + unsigned int *local_rqfpr; + unsigned int *local_rqfcr; + int i = 0x0, k = 0x0; + int j = MAX_FILER_IDX, l = 0x0; + int ret = 1; + + local_rqfpr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int), + GFP_KERNEL); + local_rqfcr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int), + GFP_KERNEL); + if (!local_rqfpr || !local_rqfcr) { + ret = 0; + goto err; + } + + switch (class) { + case TCP_V4_FLOW: + cmp_rqfpr = RQFPR_IPV4 |RQFPR_TCP; + break; + case UDP_V4_FLOW: + cmp_rqfpr = RQFPR_IPV4 |RQFPR_UDP; + break; + case TCP_V6_FLOW: + cmp_rqfpr = RQFPR_IPV6 |RQFPR_TCP; + break; + case UDP_V6_FLOW: + cmp_rqfpr = RQFPR_IPV6 |RQFPR_UDP; + break; + default: + netdev_err(priv->ndev, + "Right now this class is not supported\n"); + ret = 0; + goto err; + } + + for (i = 0; i < MAX_FILER_IDX + 1; i++) { + local_rqfpr[j] = priv->ftp_rqfpr[i]; + local_rqfcr[j] = priv->ftp_rqfcr[i]; + j--; + if ((priv->ftp_rqfcr[i] == + (RQFCR_PID_PARSE | RQFCR_CLE | RQFCR_AND)) && + (priv->ftp_rqfpr[i] == cmp_rqfpr)) + break; + } + + if (i == MAX_FILER_IDX + 1) { + netdev_err(priv->ndev, + "No parse rule found, can't create hash rules\n"); + ret = 0; + goto err; + } + + /* If a match was found, then it begins the starting of a cluster rule + * if it was already programmed, we need to overwrite these rules + */ + for (l = i+1; l < MAX_FILER_IDX; l++) { + if ((priv->ftp_rqfcr[l] & RQFCR_CLE) && + !(priv->ftp_rqfcr[l] & RQFCR_AND)) { + priv->ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT | + RQFCR_HASHTBL_0 | RQFCR_PID_MASK; + priv->ftp_rqfpr[l] = FPR_FILER_MASK; + gfar_write_filer(priv, l, priv->ftp_rqfcr[l], + priv->ftp_rqfpr[l]); + break; + } + + if (!(priv->ftp_rqfcr[l] & RQFCR_CLE) && + (priv->ftp_rqfcr[l] & RQFCR_AND)) + continue; + else { + local_rqfpr[j] = priv->ftp_rqfpr[l]; + local_rqfcr[j] = priv->ftp_rqfcr[l]; + j--; + } + } + + priv->cur_filer_idx = l - 1; + + /* hash rules */ + ethflow_to_filer_rules(priv, ethflow); + + /* Write back the popped out rules again */ + for (k = j+1; k < MAX_FILER_IDX; k++) { + priv->ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k]; + priv->ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k]; + gfar_write_filer(priv, priv->cur_filer_idx, + local_rqfcr[k], local_rqfpr[k]); + if (!priv->cur_filer_idx) + break; + priv->cur_filer_idx = priv->cur_filer_idx - 1; + } + +err: + kfree(local_rqfcr); + kfree(local_rqfpr); + return ret; +} + +static int gfar_set_hash_opts(struct gfar_private *priv, + struct ethtool_rxnfc *cmd) +{ + /* write the filer rules here */ + if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type)) + return -EINVAL; + + return 0; +} + +static int gfar_check_filer_hardware(struct gfar_private *priv) +{ + struct gfar __iomem *regs = priv->gfargrp[0].regs; + u32 i; + + /* Check if we are in FIFO mode */ + i = gfar_read(®s->ecntrl); + i &= ECNTRL_FIFM; + if (i == ECNTRL_FIFM) { + netdev_notice(priv->ndev, "Interface in FIFO mode\n"); + i = gfar_read(®s->rctrl); + i &= RCTRL_PRSDEP_MASK | RCTRL_PRSFM; + if (i == (RCTRL_PRSDEP_MASK | RCTRL_PRSFM)) { + netdev_info(priv->ndev, + "Receive Queue Filtering enabled\n"); + } else { + netdev_warn(priv->ndev, + "Receive Queue Filtering disabled\n"); + return -EOPNOTSUPP; + } + } + /* Or in standard mode */ + else { + i = gfar_read(®s->rctrl); + i &= RCTRL_PRSDEP_MASK; + if (i == RCTRL_PRSDEP_MASK) { + netdev_info(priv->ndev, + "Receive Queue Filtering enabled\n"); + } else { + netdev_warn(priv->ndev, + "Receive Queue Filtering disabled\n"); + return -EOPNOTSUPP; + } + } + + /* Sets the properties for arbitrary filer rule + * to the first 4 Layer 4 Bytes + */ + gfar_write(®s->rbifx, 0xC0C1C2C3); + return 0; +} + +/* Write a mask to filer cache */ +static void gfar_set_mask(u32 mask, struct filer_table *tab) +{ + tab->fe[tab->index].ctrl = RQFCR_AND | RQFCR_PID_MASK | RQFCR_CMP_EXACT; + tab->fe[tab->index].prop = mask; + tab->index++; +} + +/* Sets parse bits (e.g. IP or TCP) */ +static void gfar_set_parse_bits(u32 value, u32 mask, struct filer_table *tab) +{ + gfar_set_mask(mask, tab); + tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_PID_PARSE | + RQFCR_AND; + tab->fe[tab->index].prop = value; + tab->index++; +} + +static void gfar_set_general_attribute(u32 value, u32 mask, u32 flag, + struct filer_table *tab) +{ + gfar_set_mask(mask, tab); + tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_AND | flag; + tab->fe[tab->index].prop = value; + tab->index++; +} + +/* For setting a tuple of value and mask of type flag + * Example: + * IP-Src = 10.0.0.0/255.0.0.0 + * value: 0x0A000000 mask: FF000000 flag: RQFPR_IPV4 + * + * Ethtool gives us a value=0 and mask=~0 for don't care a tuple + * For a don't care mask it gives us a 0 + * + * The check if don't care and the mask adjustment if mask=0 is done for VLAN + * and MAC stuff on an upper level (due to missing information on this level). + * For these guys we can discard them if they are value=0 and mask=0. + * + * Further the all masks are one-padded for better hardware efficiency. + */ +static void gfar_set_attribute(u32 value, u32 mask, u32 flag, + struct filer_table *tab) +{ + switch (flag) { + /* 3bit */ + case RQFCR_PID_PRI: + if (!(value | mask)) + return; + mask |= RQFCR_PID_PRI_MASK; + break; + /* 8bit */ + case RQFCR_PID_L4P: + case RQFCR_PID_TOS: + if (!~(mask | RQFCR_PID_L4P_MASK)) + return; + if (!mask) + mask = ~0; + else + mask |= RQFCR_PID_L4P_MASK; + break; + /* 12bit */ + case RQFCR_PID_VID: + if (!(value | mask)) + return; + mask |= RQFCR_PID_VID_MASK; + break; + /* 16bit */ + case RQFCR_PID_DPT: + case RQFCR_PID_SPT: + case RQFCR_PID_ETY: + if (!~(mask | RQFCR_PID_PORT_MASK)) + return; + if (!mask) + mask = ~0; + else + mask |= RQFCR_PID_PORT_MASK; + break; + /* 24bit */ + case RQFCR_PID_DAH: + case RQFCR_PID_DAL: + case RQFCR_PID_SAH: + case RQFCR_PID_SAL: + if (!(value | mask)) + return; + mask |= RQFCR_PID_MAC_MASK; + break; + /* for all real 32bit masks */ + default: + if (!~mask) + return; + if (!mask) + mask = ~0; + break; + } + gfar_set_general_attribute(value, mask, flag, tab); +} + +/* Translates value and mask for UDP, TCP or SCTP */ +static void gfar_set_basic_ip(struct ethtool_tcpip4_spec *value, + struct ethtool_tcpip4_spec *mask, + struct filer_table *tab) +{ + gfar_set_attribute(be32_to_cpu(value->ip4src), + be32_to_cpu(mask->ip4src), + RQFCR_PID_SIA, tab); + gfar_set_attribute(be32_to_cpu(value->ip4dst), + be32_to_cpu(mask->ip4dst), + RQFCR_PID_DIA, tab); + gfar_set_attribute(be16_to_cpu(value->pdst), + be16_to_cpu(mask->pdst), + RQFCR_PID_DPT, tab); + gfar_set_attribute(be16_to_cpu(value->psrc), + be16_to_cpu(mask->psrc), + RQFCR_PID_SPT, tab); + gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab); +} + +/* Translates value and mask for RAW-IP4 */ +static void gfar_set_user_ip(struct ethtool_usrip4_spec *value, + struct ethtool_usrip4_spec *mask, + struct filer_table *tab) +{ + gfar_set_attribute(be32_to_cpu(value->ip4src), + be32_to_cpu(mask->ip4src), + RQFCR_PID_SIA, tab); + gfar_set_attribute(be32_to_cpu(value->ip4dst), + be32_to_cpu(mask->ip4dst), + RQFCR_PID_DIA, tab); + gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab); + gfar_set_attribute(value->proto, mask->proto, RQFCR_PID_L4P, tab); + gfar_set_attribute(be32_to_cpu(value->l4_4_bytes), + be32_to_cpu(mask->l4_4_bytes), + RQFCR_PID_ARB, tab); + +} + +/* Translates value and mask for ETHER spec */ +static void gfar_set_ether(struct ethhdr *value, struct ethhdr *mask, + struct filer_table *tab) +{ + u32 upper_temp_mask = 0; + u32 lower_temp_mask = 0; + + /* Source address */ + if (!is_broadcast_ether_addr(mask->h_source)) { + if (is_zero_ether_addr(mask->h_source)) { + upper_temp_mask = 0xFFFFFFFF; + lower_temp_mask = 0xFFFFFFFF; + } else { + upper_temp_mask = mask->h_source[0] << 16 | + mask->h_source[1] << 8 | + mask->h_source[2]; + lower_temp_mask = mask->h_source[3] << 16 | + mask->h_source[4] << 8 | + mask->h_source[5]; + } + /* Upper 24bit */ + gfar_set_attribute(value->h_source[0] << 16 | + value->h_source[1] << 8 | + value->h_source[2], + upper_temp_mask, RQFCR_PID_SAH, tab); + /* And the same for the lower part */ + gfar_set_attribute(value->h_source[3] << 16 | + value->h_source[4] << 8 | + value->h_source[5], + lower_temp_mask, RQFCR_PID_SAL, tab); + } + /* Destination address */ + if (!is_broadcast_ether_addr(mask->h_dest)) { + /* Special for destination is limited broadcast */ + if ((is_broadcast_ether_addr(value->h_dest) && + is_zero_ether_addr(mask->h_dest))) { + gfar_set_parse_bits(RQFPR_EBC, RQFPR_EBC, tab); + } else { + if (is_zero_ether_addr(mask->h_dest)) { + upper_temp_mask = 0xFFFFFFFF; + lower_temp_mask = 0xFFFFFFFF; + } else { + upper_temp_mask = mask->h_dest[0] << 16 | + mask->h_dest[1] << 8 | + mask->h_dest[2]; + lower_temp_mask = mask->h_dest[3] << 16 | + mask->h_dest[4] << 8 | + mask->h_dest[5]; + } + + /* Upper 24bit */ + gfar_set_attribute(value->h_dest[0] << 16 | + value->h_dest[1] << 8 | + value->h_dest[2], + upper_temp_mask, RQFCR_PID_DAH, tab); + /* And the same for the lower part */ + gfar_set_attribute(value->h_dest[3] << 16 | + value->h_dest[4] << 8 | + value->h_dest[5], + lower_temp_mask, RQFCR_PID_DAL, tab); + } + } + + gfar_set_attribute(be16_to_cpu(value->h_proto), + be16_to_cpu(mask->h_proto), + RQFCR_PID_ETY, tab); +} + +static inline u32 vlan_tci_vid(struct ethtool_rx_flow_spec *rule) +{ + return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_VID_MASK; +} + +static inline u32 vlan_tci_vidm(struct ethtool_rx_flow_spec *rule) +{ + return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_VID_MASK; +} + +static inline u32 vlan_tci_cfi(struct ethtool_rx_flow_spec *rule) +{ + return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_CFI_MASK; +} + +static inline u32 vlan_tci_cfim(struct ethtool_rx_flow_spec *rule) +{ + return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_CFI_MASK; +} + +static inline u32 vlan_tci_prio(struct ethtool_rx_flow_spec *rule) +{ + return (be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_PRIO_MASK) >> + VLAN_PRIO_SHIFT; +} + +static inline u32 vlan_tci_priom(struct ethtool_rx_flow_spec *rule) +{ + return (be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_PRIO_MASK) >> + VLAN_PRIO_SHIFT; +} + +/* Convert a rule to binary filter format of gianfar */ +static int gfar_convert_to_filer(struct ethtool_rx_flow_spec *rule, + struct filer_table *tab) +{ + u32 vlan = 0, vlan_mask = 0; + u32 id = 0, id_mask = 0; + u32 cfi = 0, cfi_mask = 0; + u32 prio = 0, prio_mask = 0; + u32 old_index = tab->index; + + /* Check if vlan is wanted */ + if ((rule->flow_type & FLOW_EXT) && + (rule->m_ext.vlan_tci != cpu_to_be16(0xFFFF))) { + if (!rule->m_ext.vlan_tci) + rule->m_ext.vlan_tci = cpu_to_be16(0xFFFF); + + vlan = RQFPR_VLN; + vlan_mask = RQFPR_VLN; + + /* Separate the fields */ + id = vlan_tci_vid(rule); + id_mask = vlan_tci_vidm(rule); + cfi = vlan_tci_cfi(rule); + cfi_mask = vlan_tci_cfim(rule); + prio = vlan_tci_prio(rule); + prio_mask = vlan_tci_priom(rule); + + if (cfi_mask) { + if (cfi) + vlan |= RQFPR_CFI; + vlan_mask |= RQFPR_CFI; + } + } + + switch (rule->flow_type & ~FLOW_EXT) { + case TCP_V4_FLOW: + gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_TCP | vlan, + RQFPR_IPV4 | RQFPR_TCP | vlan_mask, tab); + gfar_set_basic_ip(&rule->h_u.tcp_ip4_spec, + &rule->m_u.tcp_ip4_spec, tab); + break; + case UDP_V4_FLOW: + gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_UDP | vlan, + RQFPR_IPV4 | RQFPR_UDP | vlan_mask, tab); + gfar_set_basic_ip(&rule->h_u.udp_ip4_spec, + &rule->m_u.udp_ip4_spec, tab); + break; + case SCTP_V4_FLOW: + gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask, + tab); + gfar_set_attribute(132, 0, RQFCR_PID_L4P, tab); + gfar_set_basic_ip((struct ethtool_tcpip4_spec *)&rule->h_u, + (struct ethtool_tcpip4_spec *)&rule->m_u, + tab); + break; + case IP_USER_FLOW: + gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask, + tab); + gfar_set_user_ip((struct ethtool_usrip4_spec *) &rule->h_u, + (struct ethtool_usrip4_spec *) &rule->m_u, + tab); + break; + case ETHER_FLOW: + if (vlan) + gfar_set_parse_bits(vlan, vlan_mask, tab); + gfar_set_ether((struct ethhdr *) &rule->h_u, + (struct ethhdr *) &rule->m_u, tab); + break; + default: + return -1; + } + + /* Set the vlan attributes in the end */ + if (vlan) { + gfar_set_attribute(id, id_mask, RQFCR_PID_VID, tab); + gfar_set_attribute(prio, prio_mask, RQFCR_PID_PRI, tab); + } + + /* If there has been nothing written till now, it must be a default */ + if (tab->index == old_index) { + gfar_set_mask(0xFFFFFFFF, tab); + tab->fe[tab->index].ctrl = 0x20; + tab->fe[tab->index].prop = 0x0; + tab->index++; + } + + /* Remove last AND */ + tab->fe[tab->index - 1].ctrl &= (~RQFCR_AND); + + /* Specify which queue to use or to drop */ + if (rule->ring_cookie == RX_CLS_FLOW_DISC) + tab->fe[tab->index - 1].ctrl |= RQFCR_RJE; + else + tab->fe[tab->index - 1].ctrl |= (rule->ring_cookie << 10); + + /* Only big enough entries can be clustered */ + if (tab->index > (old_index + 2)) { + tab->fe[old_index + 1].ctrl |= RQFCR_CLE; + tab->fe[tab->index - 1].ctrl |= RQFCR_CLE; + } + + /* In rare cases the cache can be full while there is + * free space in hw + */ + if (tab->index > MAX_FILER_CACHE_IDX - 1) + return -EBUSY; + + return 0; +} + +/* Write the bit-pattern from software's buffer to hardware registers */ +static int gfar_write_filer_table(struct gfar_private *priv, + struct filer_table *tab) +{ + u32 i = 0; + if (tab->index > MAX_FILER_IDX - 1) + return -EBUSY; + + /* Fill regular entries */ + for (; i < MAX_FILER_IDX && (tab->fe[i].ctrl | tab->fe[i].prop); i++) + gfar_write_filer(priv, i, tab->fe[i].ctrl, tab->fe[i].prop); + /* Fill the rest with fall-troughs */ + for (; i < MAX_FILER_IDX; i++) + gfar_write_filer(priv, i, 0x60, 0xFFFFFFFF); + /* Last entry must be default accept + * because that's what people expect + */ + gfar_write_filer(priv, i, 0x20, 0x0); + + return 0; +} + +static int gfar_check_capability(struct ethtool_rx_flow_spec *flow, + struct gfar_private *priv) +{ + + if (flow->flow_type & FLOW_EXT) { + if (~flow->m_ext.data[0] || ~flow->m_ext.data[1]) + netdev_warn(priv->ndev, + "User-specific data not supported!\n"); + if (~flow->m_ext.vlan_etype) + netdev_warn(priv->ndev, + "VLAN-etype not supported!\n"); + } + if (flow->flow_type == IP_USER_FLOW) + if (flow->h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4) + netdev_warn(priv->ndev, + "IP-Version differing from IPv4 not supported!\n"); + + return 0; +} + +static int gfar_process_filer_changes(struct gfar_private *priv) +{ + struct ethtool_flow_spec_container *j; + struct filer_table *tab; + s32 ret = 0; + + /* So index is set to zero, too! */ + tab = kzalloc(sizeof(*tab), GFP_KERNEL); + if (tab == NULL) + return -ENOMEM; + + /* Now convert the existing filer data from flow_spec into + * filer tables binary format + */ + list_for_each_entry(j, &priv->rx_list.list, list) { + ret = gfar_convert_to_filer(&j->fs, tab); + if (ret == -EBUSY) { + netdev_err(priv->ndev, + "Rule not added: No free space!\n"); + goto end; + } + if (ret == -1) { + netdev_err(priv->ndev, + "Rule not added: Unsupported Flow-type!\n"); + goto end; + } + } + + /* Write everything to hardware */ + ret = gfar_write_filer_table(priv, tab); + if (ret == -EBUSY) { + netdev_err(priv->ndev, "Rule not added: No free space!\n"); + goto end; + } + +end: + kfree(tab); + return ret; +} + +static void gfar_invert_masks(struct ethtool_rx_flow_spec *flow) +{ + u32 i = 0; + + for (i = 0; i < sizeof(flow->m_u); i++) + flow->m_u.hdata[i] ^= 0xFF; + + flow->m_ext.vlan_etype ^= cpu_to_be16(0xFFFF); + flow->m_ext.vlan_tci ^= cpu_to_be16(0xFFFF); + flow->m_ext.data[0] ^= cpu_to_be32(~0); + flow->m_ext.data[1] ^= cpu_to_be32(~0); +} + +static int gfar_add_cls(struct gfar_private *priv, + struct ethtool_rx_flow_spec *flow) +{ + struct ethtool_flow_spec_container *temp, *comp; + int ret = 0; + + temp = kmalloc(sizeof(*temp), GFP_KERNEL); + if (temp == NULL) + return -ENOMEM; + memcpy(&temp->fs, flow, sizeof(temp->fs)); + + gfar_invert_masks(&temp->fs); + ret = gfar_check_capability(&temp->fs, priv); + if (ret) + goto clean_mem; + /* Link in the new element at the right @location */ + if (list_empty(&priv->rx_list.list)) { + ret = gfar_check_filer_hardware(priv); + if (ret != 0) + goto clean_mem; + list_add(&temp->list, &priv->rx_list.list); + goto process; + } else { + list_for_each_entry(comp, &priv->rx_list.list, list) { + if (comp->fs.location > flow->location) { + list_add_tail(&temp->list, &comp->list); + goto process; + } + if (comp->fs.location == flow->location) { + netdev_err(priv->ndev, + "Rule not added: ID %d not free!\n", + flow->location); + ret = -EBUSY; + goto clean_mem; + } + } + list_add_tail(&temp->list, &priv->rx_list.list); + } + +process: + priv->rx_list.count++; + ret = gfar_process_filer_changes(priv); + if (ret) + goto clean_list; + return ret; + +clean_list: + priv->rx_list.count--; + list_del(&temp->list); +clean_mem: + kfree(temp); + return ret; +} + +static int gfar_del_cls(struct gfar_private *priv, u32 loc) +{ + struct ethtool_flow_spec_container *comp; + u32 ret = -EINVAL; + + if (list_empty(&priv->rx_list.list)) + return ret; + + list_for_each_entry(comp, &priv->rx_list.list, list) { + if (comp->fs.location == loc) { + list_del(&comp->list); + kfree(comp); + priv->rx_list.count--; + gfar_process_filer_changes(priv); + ret = 0; + break; + } + } + + return ret; +} + +static int gfar_get_cls(struct gfar_private *priv, struct ethtool_rxnfc *cmd) +{ + struct ethtool_flow_spec_container *comp; + u32 ret = -EINVAL; + + list_for_each_entry(comp, &priv->rx_list.list, list) { + if (comp->fs.location == cmd->fs.location) { + memcpy(&cmd->fs, &comp->fs, sizeof(cmd->fs)); + gfar_invert_masks(&cmd->fs); + ret = 0; + break; + } + } + + return ret; +} + +static int gfar_get_cls_all(struct gfar_private *priv, + struct ethtool_rxnfc *cmd, u32 *rule_locs) +{ + struct ethtool_flow_spec_container *comp; + u32 i = 0; + + list_for_each_entry(comp, &priv->rx_list.list, list) { + if (i == cmd->rule_cnt) + return -EMSGSIZE; + rule_locs[i] = comp->fs.location; + i++; + } + + cmd->data = MAX_FILER_IDX; + cmd->rule_cnt = i; + + return 0; +} + +static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd) +{ + struct gfar_private *priv = netdev_priv(dev); + int ret = 0; + + if (test_bit(GFAR_RESETTING, &priv->state)) + return -EBUSY; + + mutex_lock(&priv->rx_queue_access); + + switch (cmd->cmd) { + case ETHTOOL_SRXFH: + ret = gfar_set_hash_opts(priv, cmd); + break; + case ETHTOOL_SRXCLSRLINS: + if ((cmd->fs.ring_cookie != RX_CLS_FLOW_DISC && + cmd->fs.ring_cookie >= priv->num_rx_queues) || + cmd->fs.location >= MAX_FILER_IDX) { + ret = -EINVAL; + break; + } + ret = gfar_add_cls(priv, &cmd->fs); + break; + case ETHTOOL_SRXCLSRLDEL: + ret = gfar_del_cls(priv, cmd->fs.location); + break; + default: + ret = -EINVAL; + } + + mutex_unlock(&priv->rx_queue_access); + + return ret; +} + +static int gfar_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd, + u32 *rule_locs) +{ + struct gfar_private *priv = netdev_priv(dev); + int ret = 0; + + switch (cmd->cmd) { + case ETHTOOL_GRXRINGS: + cmd->data = priv->num_rx_queues; + break; + case ETHTOOL_GRXCLSRLCNT: + cmd->rule_cnt = priv->rx_list.count; + break; + case ETHTOOL_GRXCLSRULE: + ret = gfar_get_cls(priv, cmd); + break; + case ETHTOOL_GRXCLSRLALL: + ret = gfar_get_cls_all(priv, cmd, rule_locs); + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + +static int gfar_get_ts_info(struct net_device *dev, + struct ethtool_ts_info *info) +{ + struct gfar_private *priv = netdev_priv(dev); + struct platform_device *ptp_dev; + struct device_node *ptp_node; + struct ptp_qoriq *ptp = NULL; + + info->phc_index = -1; + + if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)) { + info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE | + SOF_TIMESTAMPING_TX_SOFTWARE | + SOF_TIMESTAMPING_SOFTWARE; + return 0; + } + + ptp_node = of_find_compatible_node(NULL, NULL, "fsl,etsec-ptp"); + if (ptp_node) { + ptp_dev = of_find_device_by_node(ptp_node); + of_node_put(ptp_node); + if (ptp_dev) + ptp = platform_get_drvdata(ptp_dev); + } + + if (ptp) + info->phc_index = ptp->phc_index; + + info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE | + SOF_TIMESTAMPING_RX_HARDWARE | + SOF_TIMESTAMPING_RAW_HARDWARE | + SOF_TIMESTAMPING_RX_SOFTWARE | + SOF_TIMESTAMPING_TX_SOFTWARE | + SOF_TIMESTAMPING_SOFTWARE; + info->tx_types = (1 << HWTSTAMP_TX_OFF) | + (1 << HWTSTAMP_TX_ON); + info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) | + (1 << HWTSTAMP_FILTER_ALL); + return 0; +} + +const struct ethtool_ops gfar_ethtool_ops = { + .supported_coalesce_params = ETHTOOL_COALESCE_USECS | + ETHTOOL_COALESCE_MAX_FRAMES, + .get_drvinfo = gfar_gdrvinfo, + .get_regs_len = gfar_reglen, + .get_regs = gfar_get_regs, + .get_link = ethtool_op_get_link, + .get_coalesce = gfar_gcoalesce, + .set_coalesce = gfar_scoalesce, + .get_ringparam = gfar_gringparam, + .set_ringparam = gfar_sringparam, + .get_pauseparam = gfar_gpauseparam, + .set_pauseparam = gfar_spauseparam, + .get_strings = gfar_gstrings, + .get_sset_count = gfar_sset_count, + .get_ethtool_stats = gfar_fill_stats, + .get_msglevel = gfar_get_msglevel, + .set_msglevel = gfar_set_msglevel, +#ifdef CONFIG_PM + .get_wol = gfar_get_wol, + .set_wol = gfar_set_wol, +#endif + .set_rxnfc = gfar_set_nfc, + .get_rxnfc = gfar_get_nfc, + .get_ts_info = gfar_get_ts_info, + .get_link_ksettings = phy_ethtool_get_link_ksettings, + .set_link_ksettings = phy_ethtool_set_link_ksettings, +}; 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