![Linus Torvalds](/assets/img/avatar_default.png)
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
147 lines
4 KiB
C
147 lines
4 KiB
C
/*
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* ibm_emac_core.h
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*
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* Ethernet driver for the built in ethernet on the IBM 405 PowerPC
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* processor.
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*
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* Armin Kuster akuster@mvista.com
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* Sept, 2001
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*
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* Orignial driver
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* Johnnie Peters
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* jpeters@mvista.com
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*
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* Copyright 2000 MontaVista Softare 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 as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#ifndef _IBM_EMAC_CORE_H_
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#define _IBM_EMAC_CORE_H_
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#include <linux/netdevice.h>
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#include <asm/ocp.h>
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#include <asm/mmu.h> /* For phys_addr_t */
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#include "ibm_emac.h"
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#include "ibm_emac_phy.h"
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#include "ibm_emac_rgmii.h"
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#include "ibm_emac_zmii.h"
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#include "ibm_emac_mal.h"
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#include "ibm_emac_tah.h"
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#ifndef CONFIG_IBM_EMAC_TXB
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#define NUM_TX_BUFF 64
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#define NUM_RX_BUFF 64
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#else
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#define NUM_TX_BUFF CONFIG_IBM_EMAC_TXB
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#define NUM_RX_BUFF CONFIG_IBM_EMAC_RXB
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#endif
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/* This does 16 byte alignment, exactly what we need.
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* The packet length includes FCS, but we don't want to
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* include that when passing upstream as it messes up
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* bridging applications.
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*/
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#ifndef CONFIG_IBM_EMAC_SKBRES
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#define SKB_RES 2
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#else
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#define SKB_RES CONFIG_IBM_EMAC_SKBRES
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#endif
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/* Note about alignement. alloc_skb() returns a cache line
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* aligned buffer. However, dev_alloc_skb() will add 16 more
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* bytes and "reserve" them, so our buffer will actually end
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* on a half cache line. What we do is to use directly
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* alloc_skb, allocate 16 more bytes to match the total amount
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* allocated by dev_alloc_skb(), but we don't reserve.
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*/
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#define MAX_NUM_BUF_DESC 255
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#define DESC_BUF_SIZE 4080 /* max 4096-16 */
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#define DESC_BUF_SIZE_REG (DESC_BUF_SIZE / 16)
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/* Transmitter timeout. */
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#define TX_TIMEOUT (2*HZ)
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/* MDIO latency delay */
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#define MDIO_DELAY 250
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/* Power managment shift registers */
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#define IBM_CPM_EMMII 0 /* Shift value for MII */
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#define IBM_CPM_EMRX 1 /* Shift value for recv */
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#define IBM_CPM_EMTX 2 /* Shift value for MAC */
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#define IBM_CPM_EMAC(x) (((x)>>IBM_CPM_EMMII) | ((x)>>IBM_CPM_EMRX) | ((x)>>IBM_CPM_EMTX))
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#define ENET_HEADER_SIZE 14
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#define ENET_FCS_SIZE 4
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#define ENET_DEF_MTU_SIZE 1500
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#define ENET_DEF_BUF_SIZE (ENET_DEF_MTU_SIZE + ENET_HEADER_SIZE + ENET_FCS_SIZE)
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#define EMAC_MIN_FRAME 64
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#define EMAC_MAX_FRAME 9018
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#define EMAC_MIN_MTU (EMAC_MIN_FRAME - ENET_HEADER_SIZE - ENET_FCS_SIZE)
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#define EMAC_MAX_MTU (EMAC_MAX_FRAME - ENET_HEADER_SIZE - ENET_FCS_SIZE)
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#ifdef CONFIG_IBM_EMAC_ERRMSG
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void emac_serr_dump_0(struct net_device *dev);
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void emac_serr_dump_1(struct net_device *dev);
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void emac_err_dump(struct net_device *dev, int em0isr);
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void emac_phy_dump(struct net_device *);
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void emac_desc_dump(struct net_device *);
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void emac_mac_dump(struct net_device *);
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void emac_mal_dump(struct net_device *);
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#else
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#define emac_serr_dump_0(dev) do { } while (0)
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#define emac_serr_dump_1(dev) do { } while (0)
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#define emac_err_dump(dev,x) do { } while (0)
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#define emac_phy_dump(dev) do { } while (0)
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#define emac_desc_dump(dev) do { } while (0)
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#define emac_mac_dump(dev) do { } while (0)
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#define emac_mal_dump(dev) do { } while (0)
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#endif
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struct ocp_enet_private {
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struct sk_buff *tx_skb[NUM_TX_BUFF];
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struct sk_buff *rx_skb[NUM_RX_BUFF];
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struct mal_descriptor *tx_desc;
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struct mal_descriptor *rx_desc;
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struct mal_descriptor *rx_dirty;
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struct net_device_stats stats;
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int tx_cnt;
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int rx_slot;
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int dirty_rx;
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int tx_slot;
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int ack_slot;
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int rx_buffer_size;
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struct mii_phy phy_mii;
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int mii_phy_addr;
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int want_autoneg;
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int timer_ticks;
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struct timer_list link_timer;
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struct net_device *mdio_dev;
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struct ocp_device *rgmii_dev;
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int rgmii_input;
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struct ocp_device *zmii_dev;
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int zmii_input;
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struct ibm_ocp_mal *mal;
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int mal_tx_chan, mal_rx_chan;
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struct mal_commac commac;
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struct ocp_device *tah_dev;
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int opened;
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int going_away;
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int wol_irq;
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emac_t *emacp;
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struct ocp_device *ocpdev;
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struct net_device *ndev;
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spinlock_t lock;
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};
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#endif /* _IBM_EMAC_CORE_H_ */
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