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