/* * drivers/net/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 Freescale Semiconductor, Inc. * * This software may be used and distributed according to * the terms of the GNU Public License, Version 2, incorporated herein * by reference. */ #include <linux/kernel.h> #include <linux/string.h> #include <linux/errno.h> #include <linux/slab.h> #include <linux/interrupt.h> #include <linux/init.h> #include <linux/delay.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/skbuff.h> #include <linux/spinlock.h> #include <linux/mm.h> #include <asm/io.h> #include <asm/irq.h> #include <asm/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 "gianfar.h" extern void gfar_start(struct net_device *dev); extern int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit); #define GFAR_MAX_COAL_USECS 0xffff #define GFAR_MAX_COAL_FRAMES 0xff static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, u64 * buf); static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf); static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals); static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals); static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals); static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals); static void gfar_gdrvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo); static char stat_gstrings[][ETH_GSTRING_LEN] = { "rx-dropped-by-kernel", "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", "rx-skb-missing-errors", "tx-timeout-errors", "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; u64 *extra = (u64 *) & priv->extra_stats; if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) { u32 __iomem *rmon = (u32 __iomem *) ®s->rmon; struct gfar_stats *stats = (struct gfar_stats *) buf; for (i = 0; i < GFAR_RMON_LEN; i++) stats->rmon[i] = (u64) gfar_read(&rmon[i]); for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++) stats->extra[i] = extra[i]; } else for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++) buf[i] = extra[i]; } 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) { strncpy(drvinfo->driver, DRV_NAME, GFAR_INFOSTR_LEN); strncpy(drvinfo->version, gfar_driver_version, GFAR_INFOSTR_LEN); strncpy(drvinfo->fw_version, "N/A", GFAR_INFOSTR_LEN); strncpy(drvinfo->bus_info, "N/A", GFAR_INFOSTR_LEN); drvinfo->regdump_len = 0; drvinfo->eedump_len = 0; } static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd) { struct gfar_private *priv = netdev_priv(dev); struct phy_device *phydev = priv->phydev; if (NULL == phydev) return -ENODEV; return phy_ethtool_sset(phydev, cmd); } /* Return the current settings in the ethtool_cmd structure */ static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd) { struct gfar_private *priv = netdev_priv(dev); struct phy_device *phydev = priv->phydev; struct gfar_priv_rx_q *rx_queue = NULL; struct gfar_priv_tx_q *tx_queue = NULL; if (NULL == phydev) return -ENODEV; tx_queue = priv->tx_queue[0]; rx_queue = priv->rx_queue[0]; /* etsec-1.7 and older versions have only one txic * and rxic regs although they support multiple queues */ cmd->maxtxpkt = get_icft_value(tx_queue->txic); cmd->maxrxpkt = get_icft_value(rx_queue->rxic); return phy_ethtool_gset(phydev, cmd); } /* 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) { unsigned int count; /* The timer is different, depending on the interface speed */ switch (priv->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 ((usecs * 1000 + count - 1) / count); } /* Convert ethernet clock ticks to microseconds */ static unsigned int gfar_ticks2usecs(struct gfar_private *priv, unsigned int ticks) { unsigned int count; /* The timer is different, depending on the interface speed */ switch (priv->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 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 (NULL == priv->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; cvals->use_adaptive_rx_coalesce = 0; cvals->use_adaptive_tx_coalesce = 0; cvals->pkt_rate_low = 0; cvals->rx_coalesce_usecs_low = 0; cvals->rx_max_coalesced_frames_low = 0; cvals->tx_coalesce_usecs_low = 0; cvals->tx_max_coalesced_frames_low = 0; /* When the packet rate is below pkt_rate_high but above * pkt_rate_low (both measured in packets per second) the * normal {rx,tx}_* coalescing parameters are used. */ /* When the packet rate is (measured in packets per second) * is above pkt_rate_high, the {rx,tx}_*_high parameters are * used. */ cvals->pkt_rate_high = 0; cvals->rx_coalesce_usecs_high = 0; cvals->rx_max_coalesced_frames_high = 0; cvals->tx_coalesce_usecs_high = 0; cvals->tx_max_coalesced_frames_high = 0; /* How often to do adaptive coalescing packet rate sampling, * measured in seconds. Must not be zero. */ cvals->rate_sample_interval = 0; 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 gfar_private *priv = netdev_priv(dev); int i = 0; if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) return -EOPNOTSUPP; /* Set up rx coalescing */ /* As of now, we will enable/disable coalescing for all * queues together in case of eTSEC2, this will be modified * along with the ethtool interface */ 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; } if (NULL == priv->phydev) return -ENODEV; /* Check the bounds of the values */ if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) { pr_info("Coalescing is limited to %d microseconds\n", GFAR_MAX_COAL_USECS); return -EINVAL; } if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) { pr_info("Coalescing is limited to %d frames\n", GFAR_MAX_COAL_FRAMES); return -EINVAL; } 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; } /* Check the bounds of the values */ if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) { pr_info("Coalescing is limited to %d microseconds\n", GFAR_MAX_COAL_USECS); return -EINVAL; } if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) { pr_info("Coalescing is limited to %d frames\n", GFAR_MAX_COAL_FRAMES); return -EINVAL; } 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)); } gfar_configure_coalescing(priv, 0xFF, 0xFF); return 0; } /* 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 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. We wait for the ring to be clean before reallocating * the rings. */ static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals) { struct gfar_private *priv = netdev_priv(dev); int err = 0, i = 0; if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE) return -EINVAL; if (!is_power_of_2(rvals->rx_pending)) { printk("%s: Ring sizes must be a power of 2\n", dev->name); return -EINVAL; } if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE) return -EINVAL; if (!is_power_of_2(rvals->tx_pending)) { printk("%s: Ring sizes must be a power of 2\n", dev->name); return -EINVAL; } if (dev->flags & IFF_UP) { unsigned long flags; /* Halt TX and RX, and process the frames which * have already been received */ local_irq_save(flags); lock_tx_qs(priv); lock_rx_qs(priv); gfar_halt(dev); unlock_rx_qs(priv); unlock_tx_qs(priv); local_irq_restore(flags); for (i = 0; i < priv->num_rx_queues; i++) gfar_clean_rx_ring(priv->rx_queue[i], priv->rx_queue[i]->rx_ring_size); /* Now we take down the rings to rebuild them */ stop_gfar(dev); } /* Change the size */ for (i = 0; i < priv->num_rx_queues; i++) { priv->rx_queue[i]->rx_ring_size = rvals->rx_pending; priv->tx_queue[i]->tx_ring_size = rvals->tx_pending; priv->tx_queue[i]->num_txbdfree = priv->tx_queue[i]->tx_ring_size; } /* Rebuild the rings with the new size */ if (dev->flags & IFF_UP) { err = startup_gfar(dev); netif_tx_wake_all_queues(dev); } return err; } static int gfar_set_rx_csum(struct net_device *dev, uint32_t data) { struct gfar_private *priv = netdev_priv(dev); unsigned long flags; int err = 0, i = 0; if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) return -EOPNOTSUPP; if (dev->flags & IFF_UP) { /* Halt TX and RX, and process the frames which * have already been received */ local_irq_save(flags); lock_tx_qs(priv); lock_rx_qs(priv); gfar_halt(dev); unlock_tx_qs(priv); unlock_rx_qs(priv); local_irq_save(flags); for (i = 0; i < priv->num_rx_queues; i++) gfar_clean_rx_ring(priv->rx_queue[i], priv->rx_queue[i]->rx_ring_size); /* Now we take down the rings to rebuild them */ stop_gfar(dev); } spin_lock_irqsave(&priv->bflock, flags); priv->rx_csum_enable = data; spin_unlock_irqrestore(&priv->bflock, flags); if (dev->flags & IFF_UP) { err = startup_gfar(dev); netif_tx_wake_all_queues(dev); } return err; } static uint32_t gfar_get_rx_csum(struct net_device *dev) { struct gfar_private *priv = netdev_priv(dev); if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) return 0; return priv->rx_csum_enable; } static int gfar_set_tx_csum(struct net_device *dev, uint32_t data) { struct gfar_private *priv = netdev_priv(dev); if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) return -EOPNOTSUPP; netif_tx_lock_bh(dev); if (data) dev->features |= NETIF_F_IP_CSUM; else dev->features &= ~NETIF_F_IP_CSUM; netif_tx_unlock_bh(dev); return 0; } static uint32_t gfar_get_tx_csum(struct net_device *dev) { struct gfar_private *priv = netdev_priv(dev); if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) return 0; return (dev->features & NETIF_F_IP_CSUM) != 0; } 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); if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) { wol->supported = WAKE_MAGIC; wol->wolopts = priv->wol_en ? WAKE_MAGIC : 0; } else { wol->supported = wol->wolopts = 0; } } static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) { struct gfar_private *priv = netdev_priv(dev); unsigned long flags; if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) && wol->wolopts != 0) return -EINVAL; if (wol->wolopts & ~WAKE_MAGIC) return -EINVAL; spin_lock_irqsave(&priv->bflock, flags); priv->wol_en = wol->wolopts & WAKE_MAGIC ? 1 : 0; device_set_wakeup_enable(&dev->dev, priv->wol_en); spin_unlock_irqrestore(&priv->bflock, flags); return 0; } #endif static int gfar_ethflow_to_class(int flow_type, u64 *class) { switch (flow_type) { case TCP_V4_FLOW: *class = CLASS_CODE_TCP_IPV4; break; case UDP_V4_FLOW: *class = CLASS_CODE_UDP_IPV4; break; case AH_V4_FLOW: case ESP_V4_FLOW: *class = CLASS_CODE_AH_ESP_IPV4; break; case SCTP_V4_FLOW: *class = CLASS_CODE_SCTP_IPV4; break; case TCP_V6_FLOW: *class = CLASS_CODE_TCP_IPV6; break; case UDP_V6_FLOW: *class = CLASS_CODE_UDP_IPV6; break; case AH_V6_FLOW: case ESP_V6_FLOW: *class = CLASS_CODE_AH_ESP_IPV6; break; case SCTP_V6_FLOW: *class = CLASS_CODE_SCTP_IPV6; break; default: return 0; } return 1; } 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; ftp_rqfpr[priv->cur_filer_idx] = fpr; 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_AND | RQFCR_CMP_NOMATCH | RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0; ftp_rqfpr[priv->cur_filer_idx] = fpr; 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); ftp_rqfpr[priv->cur_filer_idx] = fpr; 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; ftp_rqfpr[priv->cur_filer_idx] = fpr; 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; ftp_rqfpr[priv->cur_filer_idx] = fpr; 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; ftp_rqfpr[priv->cur_filer_idx] = fpr; 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; ftp_rqfpr[priv->cur_filer_idx] = fpr; 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; ftp_rqfpr[priv->cur_filer_idx] = fpr; 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 last_rule_idx = priv->cur_filer_idx; unsigned int cmp_rqfpr; unsigned int local_rqfpr[MAX_FILER_IDX + 1]; unsigned int local_rqfcr[MAX_FILER_IDX + 1]; int i = 0x0, k = 0x0; int j = MAX_FILER_IDX, l = 0x0; 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; case IPV4_FLOW: cmp_rqfpr = RQFPR_IPV4; case IPV6_FLOW: cmp_rqfpr = RQFPR_IPV6; break; default: printk(KERN_ERR "Right now this class is not supported\n"); return 0; } for (i = 0; i < MAX_FILER_IDX + 1; i++) { local_rqfpr[j] = ftp_rqfpr[i]; local_rqfcr[j] = ftp_rqfcr[i]; j--; if ((ftp_rqfcr[i] == (RQFCR_PID_PARSE | RQFCR_CLE |RQFCR_AND)) && (ftp_rqfpr[i] == cmp_rqfpr)) break; } if (i == MAX_FILER_IDX + 1) { printk(KERN_ERR "No parse rule found, "); printk(KERN_ERR "can't create hash rules\n"); return 0; } /* 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 ((ftp_rqfcr[l] & RQFCR_CLE) && !(ftp_rqfcr[l] & RQFCR_AND)) { ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT | RQFCR_HASHTBL_0 | RQFCR_PID_MASK; ftp_rqfpr[l] = FPR_FILER_MASK; gfar_write_filer(priv, l, ftp_rqfcr[l], ftp_rqfpr[l]); break; } if (!(ftp_rqfcr[l] & RQFCR_CLE) && (ftp_rqfcr[l] & RQFCR_AND)) continue; else { local_rqfpr[j] = ftp_rqfpr[l]; local_rqfcr[j] = ftp_rqfcr[l]; j--; } } priv->cur_filer_idx = l - 1; last_rule_idx = l; /* hash rules */ ethflow_to_filer_rules(priv, ethflow); /* Write back the popped out rules again */ for (k = j+1; k < MAX_FILER_IDX; k++) { ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k]; 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; } return 1; } static int gfar_set_hash_opts(struct gfar_private *priv, struct ethtool_rxnfc *cmd) { u64 class; if (!gfar_ethflow_to_class(cmd->flow_type, &class)) return -EINVAL; if (class < CLASS_CODE_USER_PROG1 || class > CLASS_CODE_SCTP_IPV6) return -EINVAL; /* write the filer rules here */ if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type)) return -1; 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; switch(cmd->cmd) { case ETHTOOL_SRXFH: ret = gfar_set_hash_opts(priv, cmd); break; default: ret = -EINVAL; } return ret; } const struct ethtool_ops gfar_ethtool_ops = { .get_settings = gfar_gsettings, .set_settings = gfar_ssettings, .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_strings = gfar_gstrings, .get_sset_count = gfar_sset_count, .get_ethtool_stats = gfar_fill_stats, .get_rx_csum = gfar_get_rx_csum, .get_tx_csum = gfar_get_tx_csum, .set_rx_csum = gfar_set_rx_csum, .set_tx_csum = gfar_set_tx_csum, .set_sg = ethtool_op_set_sg, .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, };