diff options
Diffstat (limited to 'drivers/net/ibm_newemac/core.h')
| -rw-r--r-- | drivers/net/ibm_newemac/core.h | 361 |
1 files changed, 0 insertions, 361 deletions
diff --git a/drivers/net/ibm_newemac/core.h b/drivers/net/ibm_newemac/core.h deleted file mode 100644 index 4e74d8287c6..00000000000 --- a/drivers/net/ibm_newemac/core.h +++ /dev/null @@ -1,361 +0,0 @@ -/* - * drivers/net/ibm_newemac/core.h - * - * Driver for PowerPC 4xx on-chip ethernet controller. - * - * Copyright 2007 Benjamin Herrenschmidt, IBM Corp. - * <benh@kernel.crashing.org> - * - * Based on the arch/ppc version of the driver: - * - * Copyright (c) 2004, 2005 Zultys Technologies. - * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net> - * - * Based on original work by - * Armin Kuster <akuster@mvista.com> - * Johnnie Peters <jpeters@mvista.com> - * Copyright 2000, 2001 MontaVista Softare Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - */ -#ifndef __IBM_NEWEMAC_CORE_H -#define __IBM_NEWEMAC_CORE_H - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/list.h> -#include <linux/kernel.h> -#include <linux/interrupt.h> -#include <linux/netdevice.h> -#include <linux/dma-mapping.h> -#include <linux/spinlock.h> - -#include <asm/of_platform.h> -#include <asm/io.h> -#include <asm/dcr.h> - -#include "emac.h" -#include "phy.h" -#include "zmii.h" -#include "rgmii.h" -#include "mal.h" -#include "tah.h" -#include "debug.h" - -#define NUM_TX_BUFF CONFIG_IBM_NEW_EMAC_TXB -#define NUM_RX_BUFF CONFIG_IBM_NEW_EMAC_RXB - -/* Simple sanity check */ -#if NUM_TX_BUFF > 256 || NUM_RX_BUFF > 256 -#error Invalid number of buffer descriptors (greater than 256) -#endif - -#define EMAC_MIN_MTU 46 - -/* Maximum L2 header length (VLAN tagged, no FCS) */ -#define EMAC_MTU_OVERHEAD (6 * 2 + 2 + 4) - -/* RX BD size for the given MTU */ -static inline int emac_rx_size(int mtu) -{ - if (mtu > ETH_DATA_LEN) - return MAL_MAX_RX_SIZE; - else - return mal_rx_size(ETH_DATA_LEN + EMAC_MTU_OVERHEAD); -} - -#define EMAC_DMA_ALIGN(x) ALIGN((x), dma_get_cache_alignment()) - -#define EMAC_RX_SKB_HEADROOM \ - EMAC_DMA_ALIGN(CONFIG_IBM_NEW_EMAC_RX_SKB_HEADROOM) - -/* Size of RX skb for the given MTU */ -static inline int emac_rx_skb_size(int mtu) -{ - int size = max(mtu + EMAC_MTU_OVERHEAD, emac_rx_size(mtu)); - return EMAC_DMA_ALIGN(size + 2) + EMAC_RX_SKB_HEADROOM; -} - -/* RX DMA sync size */ -static inline int emac_rx_sync_size(int mtu) -{ - return EMAC_DMA_ALIGN(emac_rx_size(mtu) + 2); -} - -/* Driver statistcs is split into two parts to make it more cache friendly: - * - normal statistics (packet count, etc) - * - error statistics - * - * When statistics is requested by ethtool, these parts are concatenated, - * normal one goes first. - * - * Please, keep these structures in sync with emac_stats_keys. - */ - -/* Normal TX/RX Statistics */ -struct emac_stats { - u64 rx_packets; - u64 rx_bytes; - u64 tx_packets; - u64 tx_bytes; - u64 rx_packets_csum; - u64 tx_packets_csum; -}; - -/* Error statistics */ -struct emac_error_stats { - u64 tx_undo; - - /* Software RX Errors */ - u64 rx_dropped_stack; - u64 rx_dropped_oom; - u64 rx_dropped_error; - u64 rx_dropped_resize; - u64 rx_dropped_mtu; - u64 rx_stopped; - /* BD reported RX errors */ - u64 rx_bd_errors; - u64 rx_bd_overrun; - u64 rx_bd_bad_packet; - u64 rx_bd_runt_packet; - u64 rx_bd_short_event; - u64 rx_bd_alignment_error; - u64 rx_bd_bad_fcs; - u64 rx_bd_packet_too_long; - u64 rx_bd_out_of_range; - u64 rx_bd_in_range; - /* EMAC IRQ reported RX errors */ - u64 rx_parity; - u64 rx_fifo_overrun; - u64 rx_overrun; - u64 rx_bad_packet; - u64 rx_runt_packet; - u64 rx_short_event; - u64 rx_alignment_error; - u64 rx_bad_fcs; - u64 rx_packet_too_long; - u64 rx_out_of_range; - u64 rx_in_range; - - /* Software TX Errors */ - u64 tx_dropped; - /* BD reported TX errors */ - u64 tx_bd_errors; - u64 tx_bd_bad_fcs; - u64 tx_bd_carrier_loss; - u64 tx_bd_excessive_deferral; - u64 tx_bd_excessive_collisions; - u64 tx_bd_late_collision; - u64 tx_bd_multple_collisions; - u64 tx_bd_single_collision; - u64 tx_bd_underrun; - u64 tx_bd_sqe; - /* EMAC IRQ reported TX errors */ - u64 tx_parity; - u64 tx_underrun; - u64 tx_sqe; - u64 tx_errors; -}; - -#define EMAC_ETHTOOL_STATS_COUNT ((sizeof(struct emac_stats) + \ - sizeof(struct emac_error_stats)) \ - / sizeof(u64)) - -struct emac_instance { - struct net_device *ndev; - struct resource rsrc_regs; - struct emac_regs __iomem *emacp; - struct of_device *ofdev; - struct device_node **blist; /* bootlist entry */ - - /* MAL linkage */ - u32 mal_ph; - struct of_device *mal_dev; - u32 mal_rx_chan; - u32 mal_tx_chan; - struct mal_instance *mal; - struct mal_commac commac; - - /* PHY infos */ - u32 phy_mode; - u32 phy_map; - u32 phy_address; - u32 phy_feat_exc; - struct mii_phy phy; - struct mutex link_lock; - struct delayed_work link_work; - int link_polling; - - /* Shared MDIO if any */ - u32 mdio_ph; - struct of_device *mdio_dev; - struct emac_instance *mdio_instance; - struct mutex mdio_lock; - - /* ZMII infos if any */ - u32 zmii_ph; - u32 zmii_port; - struct of_device *zmii_dev; - - /* RGMII infos if any */ - u32 rgmii_ph; - u32 rgmii_port; - struct of_device *rgmii_dev; - - /* TAH infos if any */ - u32 tah_ph; - u32 tah_port; - struct of_device *tah_dev; - - /* IRQs */ - int wol_irq; - int emac_irq; - - /* OPB bus frequency in Mhz */ - u32 opb_bus_freq; - - /* Cell index within an ASIC (for clk mgmnt) */ - u32 cell_index; - - /* Max supported MTU */ - u32 max_mtu; - - /* Feature bits (from probe table) */ - unsigned int features; - - /* Tx and Rx fifo sizes & other infos in bytes */ - u32 tx_fifo_size; - u32 tx_fifo_size_gige; - u32 rx_fifo_size; - u32 rx_fifo_size_gige; - u32 fifo_entry_size; - u32 mal_burst_size; /* move to MAL ? */ - - /* Descriptor management - */ - struct mal_descriptor *tx_desc; - int tx_cnt; - int tx_slot; - int ack_slot; - - struct mal_descriptor *rx_desc; - int rx_slot; - struct sk_buff *rx_sg_skb; /* 1 */ - int rx_skb_size; - int rx_sync_size; - - struct sk_buff *tx_skb[NUM_TX_BUFF]; - struct sk_buff *rx_skb[NUM_RX_BUFF]; - - /* Stats - */ - struct emac_error_stats estats; - struct net_device_stats nstats; - struct emac_stats stats; - - /* Misc - */ - int reset_failed; - int stop_timeout; /* in us */ - int no_mcast; - int mcast_pending; - int opened; - struct work_struct reset_work; - spinlock_t lock; -}; - -/* - * Features of various EMAC implementations - */ - -/* - * No flow control on 40x according to the original driver - */ -#define EMAC_FTR_NO_FLOW_CONTROL_40x 0x00000001 -/* - * Cell is an EMAC4 - */ -#define EMAC_FTR_EMAC4 0x00000002 -/* - * For the 440SPe, AMCC inexplicably changed the polarity of - * the "operation complete" bit in the MII control register. - */ -#define EMAC_FTR_STACR_OC_INVERT 0x00000004 -/* - * Set if we have a TAH. - */ -#define EMAC_FTR_HAS_TAH 0x00000008 -/* - * Set if we have a ZMII. - */ -#define EMAC_FTR_HAS_ZMII 0x00000010 -/* - * Set if we have a RGMII. - */ -#define EMAC_FTR_HAS_RGMII 0x00000020 -/* - * Set if we have new type STACR with STAOPC - */ -#define EMAC_FTR_HAS_NEW_STACR 0x00000040 - - -/* Right now, we don't quite handle the always/possible masks on the - * most optimal way as we don't have a way to say something like - * always EMAC4. Patches welcome. - */ -enum { - EMAC_FTRS_ALWAYS = 0, - - EMAC_FTRS_POSSIBLE = -#ifdef CONFIG_IBM_NEW_EMAC_EMAC4 - EMAC_FTR_EMAC4 | EMAC_FTR_HAS_NEW_STACR | - EMAC_FTR_STACR_OC_INVERT | -#endif -#ifdef CONFIG_IBM_NEW_EMAC_TAH - EMAC_FTR_HAS_TAH | -#endif -#ifdef CONFIG_IBM_NEW_EMAC_ZMII - EMAC_FTR_HAS_ZMII | -#endif -#ifdef CONFIG_IBM_NEW_EMAC_RGMII - EMAC_FTR_HAS_RGMII | -#endif - 0, -}; - -static inline int emac_has_feature(struct emac_instance *dev, - unsigned long feature) -{ - return (EMAC_FTRS_ALWAYS & feature) || - (EMAC_FTRS_POSSIBLE & dev->features & feature); -} - - -/* Ethtool get_regs complex data. - * We want to get not just EMAC registers, but also MAL, ZMII, RGMII, TAH - * when available. - * - * Returned BLOB consists of the ibm_emac_ethtool_regs_hdr, - * MAL registers, EMAC registers and optional ZMII, RGMII, TAH registers. - * Each register component is preceded with emac_ethtool_regs_subhdr. - * Order of the optional headers follows their relative bit posititions - * in emac_ethtool_regs_hdr.components - */ -#define EMAC_ETHTOOL_REGS_ZMII 0x00000001 -#define EMAC_ETHTOOL_REGS_RGMII 0x00000002 -#define EMAC_ETHTOOL_REGS_TAH 0x00000004 - -struct emac_ethtool_regs_hdr { - u32 components; -}; - -struct emac_ethtool_regs_subhdr { - u32 version; - u32 index; -}; - -#endif /* __IBM_NEWEMAC_CORE_H */ |