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aaec0fab5f
This patch adds a driver for a new 1000 Mbit ethernet NIC. It is integrated on the south bridge that is used for our Cell Blades. The code gets the MAC address from the Open Firmware device tree, so it won't compile on platforms other than ppc64. This is the first public release, so I don't expect the first version to get merged, but I'd aim for integration within the 2.6.13 time frame. Cc: Utz Bacher <utz.bacher@de.ibm.com> Signed-off-by: Arnd Bergmann <arndb@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
470 lines
14 KiB
C
470 lines
14 KiB
C
/*
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* Network device driver for Cell Processor-Based Blade
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*
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* (C) Copyright IBM Corp. 2005
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*
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* Authors : Utz Bacher <utz.bacher@de.ibm.com>
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* Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef _SPIDER_NET_H
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#define _SPIDER_NET_H
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#include "sungem_phy.h"
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extern int spider_net_stop(struct net_device *netdev);
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extern int spider_net_open(struct net_device *netdev);
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extern struct ethtool_ops spider_net_ethtool_ops;
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extern char spider_net_driver_name[];
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#define SPIDER_NET_MAX_MTU 2308
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#define SPIDER_NET_MIN_MTU 64
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#define SPIDER_NET_RXBUF_ALIGN 128
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#define SPIDER_NET_RX_DESCRIPTORS_DEFAULT 64
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#define SPIDER_NET_RX_DESCRIPTORS_MIN 16
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#define SPIDER_NET_RX_DESCRIPTORS_MAX 256
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#define SPIDER_NET_TX_DESCRIPTORS_DEFAULT 64
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#define SPIDER_NET_TX_DESCRIPTORS_MIN 16
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#define SPIDER_NET_TX_DESCRIPTORS_MAX 256
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#define SPIDER_NET_RX_CSUM_DEFAULT 1
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#define SPIDER_NET_WATCHDOG_TIMEOUT 5*HZ
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#define SPIDER_NET_NAPI_WEIGHT 64
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#define SPIDER_NET_FIRMWARE_LEN 1024
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#define SPIDER_NET_FIRMWARE_NAME "spider_fw.bin"
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/** spider_net SMMIO registers */
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#define SPIDER_NET_GHIINT0STS 0x00000000
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#define SPIDER_NET_GHIINT1STS 0x00000004
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#define SPIDER_NET_GHIINT2STS 0x00000008
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#define SPIDER_NET_GHIINT0MSK 0x00000010
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#define SPIDER_NET_GHIINT1MSK 0x00000014
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#define SPIDER_NET_GHIINT2MSK 0x00000018
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#define SPIDER_NET_GRESUMINTNUM 0x00000020
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#define SPIDER_NET_GREINTNUM 0x00000024
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#define SPIDER_NET_GFFRMNUM 0x00000028
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#define SPIDER_NET_GFAFRMNUM 0x0000002c
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#define SPIDER_NET_GFBFRMNUM 0x00000030
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#define SPIDER_NET_GFCFRMNUM 0x00000034
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#define SPIDER_NET_GFDFRMNUM 0x00000038
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/* clear them (don't use it) */
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#define SPIDER_NET_GFREECNNUM 0x0000003c
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#define SPIDER_NET_GONETIMENUM 0x00000040
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#define SPIDER_NET_GTOUTFRMNUM 0x00000044
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#define SPIDER_NET_GTXMDSET 0x00000050
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#define SPIDER_NET_GPCCTRL 0x00000054
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#define SPIDER_NET_GRXMDSET 0x00000058
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#define SPIDER_NET_GIPSECINIT 0x0000005c
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#define SPIDER_NET_GFTRESTRT 0x00000060
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#define SPIDER_NET_GRXDMAEN 0x00000064
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#define SPIDER_NET_GMRWOLCTRL 0x00000068
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#define SPIDER_NET_GPCWOPCMD 0x0000006c
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#define SPIDER_NET_GPCROPCMD 0x00000070
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#define SPIDER_NET_GTTFRMCNT 0x00000078
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#define SPIDER_NET_GTESTMD 0x0000007c
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#define SPIDER_NET_GSINIT 0x00000080
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#define SPIDER_NET_GSnPRGADR 0x00000084
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#define SPIDER_NET_GSnPRGDAT 0x00000088
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#define SPIDER_NET_GMACOPEMD 0x00000100
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#define SPIDER_NET_GMACLENLMT 0x00000108
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#define SPIDER_NET_GMACINTEN 0x00000118
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#define SPIDER_NET_GMACPHYCTRL 0x00000120
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#define SPIDER_NET_GMACAPAUSE 0x00000154
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#define SPIDER_NET_GMACTXPAUSE 0x00000164
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#define SPIDER_NET_GMACMODE 0x000001b0
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#define SPIDER_NET_GMACBSTLMT 0x000001b4
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#define SPIDER_NET_GMACUNIMACU 0x000001c0
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#define SPIDER_NET_GMACUNIMACL 0x000001c8
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#define SPIDER_NET_GMRMHFILnR 0x00000400
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#define SPIDER_NET_MULTICAST_HASHES 256
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#define SPIDER_NET_GMRUAFILnR 0x00000500
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#define SPIDER_NET_GMRUA0FIL15R 0x00000578
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/* RX DMA controller registers, all 0x00000a.. are for DMA controller A,
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* 0x00000b.. for DMA controller B, etc. */
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#define SPIDER_NET_GDADCHA 0x00000a00
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#define SPIDER_NET_GDADMACCNTR 0x00000a04
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#define SPIDER_NET_GDACTDPA 0x00000a08
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#define SPIDER_NET_GDACTDCNT 0x00000a0c
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#define SPIDER_NET_GDACDBADDR 0x00000a20
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#define SPIDER_NET_GDACDBSIZE 0x00000a24
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#define SPIDER_NET_GDACNEXTDA 0x00000a28
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#define SPIDER_NET_GDACCOMST 0x00000a2c
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#define SPIDER_NET_GDAWBCOMST 0x00000a30
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#define SPIDER_NET_GDAWBRSIZE 0x00000a34
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#define SPIDER_NET_GDAWBVSIZE 0x00000a38
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#define SPIDER_NET_GDAWBTRST 0x00000a3c
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#define SPIDER_NET_GDAWBTRERR 0x00000a40
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/* TX DMA controller registers */
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#define SPIDER_NET_GDTDCHA 0x00000e00
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#define SPIDER_NET_GDTDMACCNTR 0x00000e04
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#define SPIDER_NET_GDTCDPA 0x00000e08
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#define SPIDER_NET_GDTDMASEL 0x00000e14
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#define SPIDER_NET_ECMODE 0x00000f00
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/* clock and reset control register */
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#define SPIDER_NET_CKRCTRL 0x00000ff0
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/** SCONFIG registers */
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#define SPIDER_NET_SCONFIG_IOACTE 0x00002810
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/** hardcoded register values */
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#define SPIDER_NET_INT0_MASK_VALUE 0x3f7fe3ff
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#define SPIDER_NET_INT1_MASK_VALUE 0xffffffff
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/* no MAC aborts -> auto retransmission */
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#define SPIDER_NET_INT2_MASK_VALUE 0xfffffff1
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/* clear counter when interrupt sources are cleared
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#define SPIDER_NET_FRAMENUM_VALUE 0x0001f001 */
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/* we rely on flagged descriptor interrupts */
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#define SPIDER_NET_FRAMENUM_VALUE 0x00000000
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/* set this first, then the FRAMENUM_VALUE */
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#define SPIDER_NET_GFXFRAMES_VALUE 0x00000000
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#define SPIDER_NET_STOP_SEQ_VALUE 0x00000000
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#define SPIDER_NET_RUN_SEQ_VALUE 0x0000007e
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#define SPIDER_NET_PHY_CTRL_VALUE 0x00040040
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/* #define SPIDER_NET_PHY_CTRL_VALUE 0x01070080*/
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#define SPIDER_NET_RXMODE_VALUE 0x00000011
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/* auto retransmission in case of MAC aborts */
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#define SPIDER_NET_TXMODE_VALUE 0x00010000
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#define SPIDER_NET_RESTART_VALUE 0x00000000
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#define SPIDER_NET_WOL_VALUE 0x00001111
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#if 0
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#define SPIDER_NET_WOL_VALUE 0x00000000
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#endif
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#define SPIDER_NET_IPSECINIT_VALUE 0x00f000f8
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/* pause frames: automatic, no upper retransmission count */
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/* outside loopback mode: ETOMOD signal dont matter, not connected */
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#define SPIDER_NET_OPMODE_VALUE 0x00000063
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/*#define SPIDER_NET_OPMODE_VALUE 0x001b0062*/
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#define SPIDER_NET_LENLMT_VALUE 0x00000908
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#define SPIDER_NET_MACAPAUSE_VALUE 0x00000800 /* about 1 ms */
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#define SPIDER_NET_TXPAUSE_VALUE 0x00000000
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#define SPIDER_NET_MACMODE_VALUE 0x00000001
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#define SPIDER_NET_BURSTLMT_VALUE 0x00000200 /* about 16 us */
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/* 1(0) enable r/tx dma
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* 0000000 fixed to 0
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*
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* 000000 fixed to 0
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* 0(1) en/disable descr writeback on force end
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* 0(1) force end
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*
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* 000000 fixed to 0
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* 00 burst alignment: 128 bytes
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*
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* 00000 fixed to 0
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* 0 descr writeback size 32 bytes
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* 0(1) descr chain end interrupt enable
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* 0(1) descr status writeback enable */
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/* to set RX_DMA_EN */
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#define SPIDER_NET_DMA_RX_VALUE 0x80000000
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#define SPIDER_NET_DMA_RX_FEND_VALUE 0x00030003
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/* to set TX_DMA_EN */
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#define SPIDER_NET_DMA_TX_VALUE 0x80000000
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#define SPIDER_NET_DMA_TX_FEND_VALUE 0x00030003
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/* SPIDER_NET_UA_DESCR_VALUE is OR'ed with the unicast address */
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#define SPIDER_NET_UA_DESCR_VALUE 0x00080000
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#define SPIDER_NET_PROMISC_VALUE 0x00080000
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#define SPIDER_NET_NONPROMISC_VALUE 0x00000000
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#define SPIDER_NET_DMASEL_VALUE 0x00000001
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#define SPIDER_NET_ECMODE_VALUE 0x00000000
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#define SPIDER_NET_CKRCTRL_RUN_VALUE 0x1fff010f
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#define SPIDER_NET_CKRCTRL_STOP_VALUE 0x0000010f
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#define SPIDER_NET_SBIMSTATE_VALUE 0x00000000
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#define SPIDER_NET_SBTMSTATE_VALUE 0x00000000
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/* SPIDER_NET_GHIINT0STS bits, in reverse order so that they can be used
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* with 1 << SPIDER_NET_... */
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enum spider_net_int0_status {
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SPIDER_NET_GPHYINT = 0,
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SPIDER_NET_GMAC2INT,
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SPIDER_NET_GMAC1INT,
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SPIDER_NET_GIPSINT,
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SPIDER_NET_GFIFOINT,
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SPIDER_NET_GDMACINT,
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SPIDER_NET_GSYSINT,
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SPIDER_NET_GPWOPCMPINT,
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SPIDER_NET_GPROPCMPINT,
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SPIDER_NET_GPWFFINT,
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SPIDER_NET_GRMDADRINT,
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SPIDER_NET_GRMARPINT,
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SPIDER_NET_GRMMPINT,
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SPIDER_NET_GDTDEN0INT,
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SPIDER_NET_GDDDEN0INT,
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SPIDER_NET_GDCDEN0INT,
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SPIDER_NET_GDBDEN0INT,
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SPIDER_NET_GDADEN0INT,
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SPIDER_NET_GDTFDCINT,
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SPIDER_NET_GDDFDCINT,
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SPIDER_NET_GDCFDCINT,
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SPIDER_NET_GDBFDCINT,
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SPIDER_NET_GDAFDCINT,
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SPIDER_NET_GTTEDINT,
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SPIDER_NET_GDTDCEINT,
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SPIDER_NET_GRFDNMINT,
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SPIDER_NET_GRFCNMINT,
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SPIDER_NET_GRFBNMINT,
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SPIDER_NET_GRFANMINT,
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SPIDER_NET_GRFNMINT,
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SPIDER_NET_G1TMCNTINT,
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SPIDER_NET_GFREECNTINT
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};
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/* GHIINT1STS bits */
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enum spider_net_int1_status {
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SPIDER_NET_GTMFLLINT = 0,
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SPIDER_NET_GRMFLLINT,
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SPIDER_NET_GTMSHTINT,
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SPIDER_NET_GDTINVDINT,
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SPIDER_NET_GRFDFLLINT,
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SPIDER_NET_GDDDCEINT,
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SPIDER_NET_GDDINVDINT,
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SPIDER_NET_GRFCFLLINT,
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SPIDER_NET_GDCDCEINT,
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SPIDER_NET_GDCINVDINT,
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SPIDER_NET_GRFBFLLINT,
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SPIDER_NET_GDBDCEINT,
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SPIDER_NET_GDBINVDINT,
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SPIDER_NET_GRFAFLLINT,
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SPIDER_NET_GDADCEINT,
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SPIDER_NET_GDAINVDINT,
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SPIDER_NET_GDTRSERINT,
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SPIDER_NET_GDDRSERINT,
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SPIDER_NET_GDCRSERINT,
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SPIDER_NET_GDBRSERINT,
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SPIDER_NET_GDARSERINT,
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SPIDER_NET_GDSERINT,
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SPIDER_NET_GDTPTERINT,
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SPIDER_NET_GDDPTERINT,
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SPIDER_NET_GDCPTERINT,
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SPIDER_NET_GDBPTERINT,
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SPIDER_NET_GDAPTERINT
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};
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/* GHIINT2STS bits */
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enum spider_net_int2_status {
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SPIDER_NET_GPROPERINT = 0,
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SPIDER_NET_GMCTCRSNGINT,
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SPIDER_NET_GMCTLCOLINT,
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SPIDER_NET_GMCTTMOTINT,
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SPIDER_NET_GMCRCAERINT,
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SPIDER_NET_GMCRCALERINT,
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SPIDER_NET_GMCRALNERINT,
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SPIDER_NET_GMCROVRINT,
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SPIDER_NET_GMCRRNTINT,
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SPIDER_NET_GMCRRXERINT,
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SPIDER_NET_GTITCSERINT,
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SPIDER_NET_GTIFMTERINT,
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SPIDER_NET_GTIPKTRVKINT,
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SPIDER_NET_GTISPINGINT,
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SPIDER_NET_GTISADNGINT,
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SPIDER_NET_GTISPDNGINT,
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SPIDER_NET_GRIFMTERINT,
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SPIDER_NET_GRIPKTRVKINT,
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SPIDER_NET_GRISPINGINT,
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SPIDER_NET_GRISADNGINT,
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SPIDER_NET_GRISPDNGINT
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};
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#define SPIDER_NET_TXINT ( (1 << SPIDER_NET_GTTEDINT) | \
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(1 << SPIDER_NET_GDTDCEINT) | \
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(1 << SPIDER_NET_GDTFDCINT) )
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/* we rely on flagged descriptor interrupts*/
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#define SPIDER_NET_RXINT ( (1 << SPIDER_NET_GDAFDCINT) | \
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(1 << SPIDER_NET_GRMFLLINT) )
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#define SPIDER_NET_GPREXEC 0x80000000
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#define SPIDER_NET_GPRDAT_MASK 0x0000ffff
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/* descriptor bits
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*
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* 1010 descriptor ready
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* 0 descr in middle of chain
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* 000 fixed to 0
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*
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* 0 no interrupt on completion
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* 000 fixed to 0
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* 1 no ipsec processing
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* 1 last descriptor for this frame
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* 00 no checksum
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* 10 tcp checksum
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* 11 udp checksum
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*
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* 00 fixed to 0
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* 0 fixed to 0
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* 0 no interrupt on response errors
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* 0 no interrupt on invalid descr
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* 0 no interrupt on dma process termination
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* 0 no interrupt on descr chain end
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* 0 no interrupt on descr complete
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*
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* 000 fixed to 0
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* 0 response error interrupt status
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* 0 invalid descr status
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* 0 dma termination status
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* 0 descr chain end status
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* 0 descr complete status */
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#define SPIDER_NET_DMAC_CMDSTAT_NOCS 0xa00c0000
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#define SPIDER_NET_DMAC_CMDSTAT_TCPCS 0xa00e0000
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#define SPIDER_NET_DMAC_CMDSTAT_UDPCS 0xa00f0000
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#define SPIDER_NET_DESCR_IND_PROC_SHIFT 28
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#define SPIDER_NET_DESCR_IND_PROC_MASKO 0x0fffffff
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/* descr ready, descr is in middle of chain, get interrupt on completion */
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#define SPIDER_NET_DMAC_RX_CARDOWNED 0xa0800000
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/* multicast is no problem */
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#define SPIDER_NET_DATA_ERROR_MASK 0xffffbfff
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enum spider_net_descr_status {
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SPIDER_NET_DESCR_COMPLETE = 0x00, /* used in rx and tx */
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SPIDER_NET_DESCR_RESPONSE_ERROR = 0x01, /* used in rx and tx */
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SPIDER_NET_DESCR_PROTECTION_ERROR = 0x02, /* used in rx and tx */
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SPIDER_NET_DESCR_FRAME_END = 0x04, /* used in rx */
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SPIDER_NET_DESCR_FORCE_END = 0x05, /* used in rx and tx */
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SPIDER_NET_DESCR_CARDOWNED = 0x0a, /* used in rx and tx */
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SPIDER_NET_DESCR_NOT_IN_USE /* any other value */
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};
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struct spider_net_descr {
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/* as defined by the hardware */
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dma_addr_t buf_addr;
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u32 buf_size;
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dma_addr_t next_descr_addr;
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u32 dmac_cmd_status;
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u32 result_size;
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u32 valid_size; /* all zeroes for tx */
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u32 data_status;
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u32 data_error; /* all zeroes for tx */
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/* used in the driver */
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struct sk_buff *skb;
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dma_addr_t bus_addr;
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struct spider_net_descr *next;
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struct spider_net_descr *prev;
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} __attribute__((aligned(32)));
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struct spider_net_descr_chain {
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/* we walk from tail to head */
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struct spider_net_descr *head;
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struct spider_net_descr *tail;
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};
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/* descriptor data_status bits */
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#define SPIDER_NET_RXIPCHK 29
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#define SPIDER_NET_TCPUDPIPCHK 28
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#define SPIDER_NET_DATA_STATUS_CHK_MASK (1 << SPIDER_NET_RXIPCHK | \
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1 << SPIDER_NET_TCPUDPIPCHK)
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#define SPIDER_NET_VLAN_PACKET 21
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/* descriptor data_error bits */
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#define SPIDER_NET_RXIPCHKERR 27
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#define SPIDER_NET_RXTCPCHKERR 26
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#define SPIDER_NET_DATA_ERROR_CHK_MASK (1 << SPIDER_NET_RXIPCHKERR | \
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1 << SPIDER_NET_RXTCPCHKERR)
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/* the cases we don't pass the packet to the stack */
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#define SPIDER_NET_DESTROY_RX_FLAGS 0x70138000
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#define SPIDER_NET_DESCR_SIZE 32
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/* this will be bigger some time */
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struct spider_net_options {
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int rx_csum; /* for rx: if 0 ip_summed=NONE,
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if 1 and hw has verified, ip_summed=UNNECESSARY */
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};
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#define SPIDER_NET_DEFAULT_MSG ( NETIF_MSG_DRV | \
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NETIF_MSG_PROBE | \
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NETIF_MSG_LINK | \
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NETIF_MSG_TIMER | \
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NETIF_MSG_IFDOWN | \
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NETIF_MSG_IFUP | \
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NETIF_MSG_RX_ERR | \
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NETIF_MSG_TX_ERR | \
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NETIF_MSG_TX_QUEUED | \
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NETIF_MSG_INTR | \
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NETIF_MSG_TX_DONE | \
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NETIF_MSG_RX_STATUS | \
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NETIF_MSG_PKTDATA | \
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NETIF_MSG_HW | \
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NETIF_MSG_WOL )
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struct spider_net_card {
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struct net_device *netdev;
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struct pci_dev *pdev;
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struct mii_phy phy;
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void __iomem *regs;
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struct spider_net_descr_chain tx_chain;
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struct spider_net_descr_chain rx_chain;
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spinlock_t chain_lock;
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struct net_device_stats netdev_stats;
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struct spider_net_options options;
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spinlock_t intmask_lock;
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struct work_struct tx_timeout_task;
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atomic_t tx_timeout_task_counter;
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wait_queue_head_t waitq;
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/* for ethtool */
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int msg_enable;
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struct spider_net_descr descr[0];
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};
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#define pr_err(fmt,arg...) \
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printk(KERN_ERR fmt ,##arg)
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#endif
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