/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Network device driver for Cell Processor-Based Blade and Celleb platform
*
* (C) Copyright IBM Corp. 2005
* (C) Copyright 2006 TOSHIBA CORPORATION
*
* Authors : Utz Bacher <utz.bacher@de.ibm.com>
* Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
*/
#ifndef _SPIDER_NET_H
#define _SPIDER_NET_H
#define VERSION "2.0 B"
#include <linux/sungem_phy.h>
int spider_net_stop(struct net_device *netdev);
int spider_net_open(struct net_device *netdev);
extern const struct ethtool_ops spider_net_ethtool_ops;
extern char spider_net_driver_name[];
#define SPIDER_NET_MAX_FRAME 2312
#define SPIDER_NET_MAX_MTU 2294
#define SPIDER_NET_MIN_MTU 64
#define SPIDER_NET_RXBUF_ALIGN 128
#define SPIDER_NET_RX_DESCRIPTORS_DEFAULT 256
#define SPIDER_NET_RX_DESCRIPTORS_MIN 16
#define SPIDER_NET_RX_DESCRIPTORS_MAX 512
#define SPIDER_NET_TX_DESCRIPTORS_DEFAULT 256
#define SPIDER_NET_TX_DESCRIPTORS_MIN 16
#define SPIDER_NET_TX_DESCRIPTORS_MAX 512
#define SPIDER_NET_TX_TIMER (HZ/5)
#define SPIDER_NET_ANEG_TIMER (HZ)
#define SPIDER_NET_ANEG_TIMEOUT 5
#define SPIDER_NET_RX_CSUM_DEFAULT 1
#define SPIDER_NET_WATCHDOG_TIMEOUT 50*HZ
#define SPIDER_NET_FIRMWARE_SEQS 6
#define SPIDER_NET_FIRMWARE_SEQWORDS 1024
#define SPIDER_NET_FIRMWARE_LEN (SPIDER_NET_FIRMWARE_SEQS * \
SPIDER_NET_FIRMWARE_SEQWORDS * \
sizeof(u32))
#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_GMACST 0x00000110
#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
#define SPIDER_NET_GTTQMSK 0x00000934
/* 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
/** interrupt mask registers */
#define SPIDER_NET_INT0_MASK_VALUE 0x3f7fe2c7
#define SPIDER_NET_INT1_MASK_VALUE 0x0000fff2
#define SPIDER_NET_INT2_MASK_VALUE 0x000003f1
/* 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 0x6f716f71
/* pause frames: automatic, no upper retransmission count */
/* outside loopback mode: ETOMOD signal dont matter, not connected */
/* ETOMOD signal is brought to PHY reset. bit 2 must be 1 in Celleb */
#define SPIDER_NET_OPMODE_VALUE 0x00000067
/*#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 */
/* DMAC control register GDMACCNTR
*
* 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
* 11 burst alignment: 1024 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_TX_DMA_EN 0x80000000
#define SPIDER_NET_GDTBSTA 0x00000300
#define SPIDER_NET_GDTDCEIDIS 0x00000002
#define SPIDER_NET_DMA_TX_VALUE SPIDER_NET_TX_DMA_EN | \
SPIDER_NET_GDTDCEIDIS | \
SPIDER_NET_GDTBSTA
#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_GDTFDCINT)
/* We rely on flagged descriptor interrupts */
#define SPIDER_NET_RXINT ( (1 << SPIDER_NET_GDAFDCINT) )
#define SPIDER_NET_LINKINT ( 1 << SPIDER_NET_GMAC2INT )
#define SPIDER_NET_ERRINT ( 0xffffffff & \
(~SPIDER_NET_TXINT) & \
(~SPIDER_NET_RXINT) & \
(~SPIDER_NET_LINKINT) )
#define SPIDER_NET_GPREXEC 0x80000000
#define SPIDER_NET_GPRDAT_MASK 0x0000ffff
#define SPIDER_NET_DMAC_NOINTR_COMPLETE 0x00800000
#define SPIDER_NET_DMAC_TXFRMTL 0x00040000
#define SPIDER_NET_DMAC_TCP 0x00020000
#define SPIDER_NET_DMAC_UDP 0x00030000
#define SPIDER_NET_TXDCEST 0x08000000
#define SPIDER_NET_DESCR_RXFDIS 0x00000001
#define SPIDER_NET_DESCR_RXDCEIS 0x00000002
#define SPIDER_NET_DESCR_RXDEN0IS 0x00000004
#define SPIDER_NET_DESCR_RXINVDIS 0x00000008
#define SPIDER_NET_DESCR_RXRERRIS 0x00000010
#define SPIDER_NET_DESCR_RXFDCIMS 0x00000100
#define SPIDER_NET_DESCR_RXDCEIMS 0x00000200
#define SPIDER_NET_DESCR_RXDEN0IMS 0x00000400
#define SPIDER_NET_DESCR_RXINVDIMS 0x00000800
#define SPIDER_NET_DESCR_RXRERRMIS 0x00001000
#define SPIDER_NET_DESCR_UNUSED 0x077fe0e0
#define SPIDER_NET_DESCR_IND_PROC_MASK 0xF0000000
#define SPIDER_NET_DESCR_COMPLETE 0x00000000 /* used in rx and tx */
#define SPIDER_NET_DESCR_RESPONSE_ERROR 0x10000000 /* used in rx and tx */
#define SPIDER_NET_DESCR_PROTECTION_ERROR 0x20000000 /* used in rx and tx */
#define SPIDER_NET_DESCR_FRAME_END 0x40000000 /* used in rx */
#define SPIDER_NET_DESCR_FORCE_END 0x50000000 /* used in rx and tx */
#define SPIDER_NET_DESCR_CARDOWNED 0xA0000000 /* used in rx and tx */
#define SPIDER_NET_DESCR_NOT_IN_USE 0xF0000000
#define SPIDER_NET_DESCR_TXDESFLG 0x00800000
#define SPIDER_NET_DESCR_BAD_STATUS (SPIDER_NET_DESCR_RXDEN0IS | \
SPIDER_NET_DESCR_RXRERRIS | \
SPIDER_NET_DESCR_RXDEN0IMS | \
SPIDER_NET_DESCR_RXINVDIMS | \
SPIDER_NET_DESCR_RXRERRMIS | \
SPIDER_NET_DESCR_UNUSED)
/* Descriptor, as defined by the hardware */
struct spider_net_hw_descr {
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 */
} __attribute__((aligned(32)));
struct spider_net_descr {
struct spider_net_hw_descr *hwdescr;
struct sk_buff *skb;
u32 bus_addr;
struct spider_net_descr *next;
struct spider_net_descr *prev;
};
struct spider_net_descr_chain {
spinlock_t lock;
struct spider_net_descr *head;
struct spider_net_descr *tail;
struct spider_net_descr *ring;
int num_desc;
struct spider_net_hw_descr *hwring;
dma_addr_t dma_addr;
};
/* descriptor data_status bits */
#define SPIDER_NET_RX_IPCHK 29
#define SPIDER_NET_RX_TCPCHK 28
#define SPIDER_NET_VLAN_PACKET 21
#define SPIDER_NET_DATA_STATUS_CKSUM_MASK ( (1 << SPIDER_NET_RX_IPCHK) | \
(1 << SPIDER_NET_RX_TCPCHK) )
/* descriptor data_error bits */
#define SPIDER_NET_RX_IPCHKERR 27
#define SPIDER_NET_RX_RXTCPCHKERR 28
#define SPIDER_NET_DATA_ERR_CKSUM_MASK (1 << SPIDER_NET_RX_IPCHKERR)
/* the cases we don't pass the packet to the stack.
* 701b8000 would be correct, but every packets gets that flag */
#define SPIDER_NET_DESTROY_RX_FLAGS 0x700b8000
#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_extra_stats {
unsigned long rx_desc_error;
unsigned long tx_timeouts;
unsigned long alloc_rx_skb_error;
unsigned long rx_iommu_map_error;
unsigned long tx_iommu_map_error;
unsigned long rx_desc_unk_state;
};
struct spider_net_card {
struct net_device *netdev;
struct pci_dev *pdev;
struct mii_phy phy;
struct napi_struct napi;
int medium;
void __iomem *regs;
struct spider_net_descr_chain tx_chain;
struct spider_net_descr_chain rx_chain;
struct spider_net_descr *low_watermark;
int aneg_count;
struct timer_list aneg_timer;
struct timer_list tx_timer;
struct work_struct tx_timeout_task;
atomic_t tx_timeout_task_counter;
wait_queue_head_t waitq;
int num_rx_ints;
int ignore_rx_ramfull;
/* for ethtool */
int msg_enable;
struct spider_net_extra_stats spider_stats;
/* Must be last item in struct */
struct spider_net_descr darray[];
};
#endif