linux/drivers/net/tokenring/olympic.h
Al Viro b710b43c30 endianness annotations and fixes for olympic
* missing braces in !readl(...) & ...
	* trivial endianness annotations
	* in olympic_arb_cmd() the loop collecting fragments of
packet is b0rken on big-endian - we have
	(next_ptr && (buf_ptr=olympic_priv->olympic_lap + ntohs(next_ptr)))
as condition and it should have swab16(), not ntohs() - it's host-endian
byteswapped, not big-endian.  So if we get more than one fragment on big-endian
host, we get screwed.
	This ntohs() got missed back when the rest of those had been switched
to swab16() in 2.4.0-test2-pre1 - at a guess, nobody had hit fragmented
packets during the testing of PPC fixes.

PS: Ken Aaker cc'd on assumption that he is the same guy who'd done the
original set of PPC fixes in olympic

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-01-28 15:07:08 -08:00

322 lines
7.8 KiB
C

/*
* olympic.h (c) 1999 Peter De Schrijver All Rights Reserved
* 1999,2000 Mike Phillips (mikep@linuxtr.net)
*
* Linux driver for IBM PCI tokenring cards based on the olympic and the PIT/PHY chipset.
*
* Base Driver Skeleton:
* Written 1993-94 by Donald Becker.
*
* Copyright 1993 United States Government as represented by the
* Director, National Security Agency.
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*/
#define CID 0x4e
#define BCTL 0x70
#define BCTL_SOFTRESET (1<<15)
#define BCTL_MIMREB (1<<6)
#define BCTL_MODE_INDICATOR (1<<5)
#define GPR 0x4a
#define GPR_OPTI_BF (1<<6)
#define GPR_NEPTUNE_BF (1<<4)
#define GPR_AUTOSENSE (1<<2)
#define GPR_16MBPS (1<<3)
#define PAG 0x85
#define LBC 0x8e
#define LISR 0x10
#define LISR_SUM 0x14
#define LISR_RWM 0x18
#define LISR_LIE (1<<15)
#define LISR_SLIM (1<<13)
#define LISR_SLI (1<<12)
#define LISR_PCMSRMASK (1<<11)
#define LISR_PCMSRINT (1<<10)
#define LISR_WOLMASK (1<<9)
#define LISR_WOL (1<<8)
#define LISR_SRB_CMD (1<<5)
#define LISR_ASB_REPLY (1<<4)
#define LISR_ASB_FREE_REQ (1<<2)
#define LISR_ARB_FREE (1<<1)
#define LISR_TRB_FRAME (1<<0)
#define SISR 0x20
#define SISR_SUM 0x24
#define SISR_RWM 0x28
#define SISR_RR 0x2C
#define SISR_RESMASK 0x30
#define SISR_MASK 0x54
#define SISR_MASK_SUM 0x58
#define SISR_MASK_RWM 0x5C
#define SISR_TX2_IDLE (1<<31)
#define SISR_TX2_HALT (1<<29)
#define SISR_TX2_EOF (1<<28)
#define SISR_TX1_IDLE (1<<27)
#define SISR_TX1_HALT (1<<25)
#define SISR_TX1_EOF (1<<24)
#define SISR_TIMEOUT (1<<23)
#define SISR_RX_NOBUF (1<<22)
#define SISR_RX_STATUS (1<<21)
#define SISR_RX_HALT (1<<18)
#define SISR_RX_EOF_EARLY (1<<16)
#define SISR_MI (1<<15)
#define SISR_PI (1<<13)
#define SISR_ERR (1<<9)
#define SISR_ADAPTER_CHECK (1<<6)
#define SISR_SRB_REPLY (1<<5)
#define SISR_ASB_FREE (1<<4)
#define SISR_ARB_CMD (1<<3)
#define SISR_TRB_REPLY (1<<2)
#define EISR 0x34
#define EISR_RWM 0x38
#define EISR_MASK 0x3c
#define EISR_MASK_OPTIONS 0x001FFF7F
#define LAPA 0x60
#define LAPWWO 0x64
#define LAPWWC 0x68
#define LAPCTL 0x6C
#define LAIPD 0x78
#define LAIPDDINC 0x7C
#define TIMER 0x50
#define CLKCTL 0x74
#define CLKCTL_PAUSE (1<<15)
#define PM_CON 0x4
#define BMCTL_SUM 0x40
#define BMCTL_RWM 0x44
#define BMCTL_TX2_DIS (1<<30)
#define BMCTL_TX1_DIS (1<<26)
#define BMCTL_RX_DIS (1<<22)
#define BMASR 0xcc
#define RXDESCQ 0x90
#define RXDESCQCNT 0x94
#define RXCDA 0x98
#define RXENQ 0x9C
#define RXSTATQ 0xA0
#define RXSTATQCNT 0xA4
#define RXCSA 0xA8
#define RXCLEN 0xAC
#define RXHLEN 0xAE
#define TXDESCQ_1 0xb0
#define TXDESCQ_2 0xd0
#define TXDESCQCNT_1 0xb4
#define TXDESCQCNT_2 0xd4
#define TXCDA_1 0xb8
#define TXCDA_2 0xd8
#define TXENQ_1 0xbc
#define TXENQ_2 0xdc
#define TXSTATQ_1 0xc0
#define TXSTATQ_2 0xe0
#define TXSTATQCNT_1 0xc4
#define TXSTATQCNT_2 0xe4
#define TXCSA_1 0xc8
#define TXCSA_2 0xe8
/* Cardbus */
#define FERMASK 0xf4
#define FERMASK_INT_BIT (1<<15)
#define OLYMPIC_IO_SPACE 256
#define SRB_COMMAND_SIZE 50
#define OLYMPIC_MAX_ADAPTERS 8 /* 0x08 __MODULE_STRING can't hand 0xnn */
/* Defines for LAN STATUS CHANGE reports */
#define LSC_SIG_LOSS 0x8000
#define LSC_HARD_ERR 0x4000
#define LSC_SOFT_ERR 0x2000
#define LSC_TRAN_BCN 0x1000
#define LSC_LWF 0x0800
#define LSC_ARW 0x0400
#define LSC_FPE 0x0200
#define LSC_RR 0x0100
#define LSC_CO 0x0080
#define LSC_SS 0x0040
#define LSC_RING_REC 0x0020
#define LSC_SR_CO 0x0010
#define LSC_FDX_MODE 0x0004
/* Defines for OPEN ADAPTER command */
#define OPEN_ADAPTER_EXT_WRAP (1<<15)
#define OPEN_ADAPTER_DIS_HARDEE (1<<14)
#define OPEN_ADAPTER_DIS_SOFTERR (1<<13)
#define OPEN_ADAPTER_PASS_ADC_MAC (1<<12)
#define OPEN_ADAPTER_PASS_ATT_MAC (1<<11)
#define OPEN_ADAPTER_ENABLE_EC (1<<10)
#define OPEN_ADAPTER_CONTENDER (1<<8)
#define OPEN_ADAPTER_PASS_BEACON (1<<7)
#define OPEN_ADAPTER_ENABLE_FDX (1<<6)
#define OPEN_ADAPTER_ENABLE_RPL (1<<5)
#define OPEN_ADAPTER_INHIBIT_ETR (1<<4)
#define OPEN_ADAPTER_INTERNAL_WRAP (1<<3)
#define OPEN_ADAPTER_USE_OPTS2 (1<<0)
#define OPEN_ADAPTER_2_ENABLE_ONNOW (1<<15)
/* Defines for SRB Commands */
#define SRB_ACCESS_REGISTER 0x1f
#define SRB_CLOSE_ADAPTER 0x04
#define SRB_CONFIGURE_BRIDGE 0x0c
#define SRB_CONFIGURE_WAKEUP_EVENT 0x1a
#define SRB_MODIFY_BRIDGE_PARMS 0x15
#define SRB_MODIFY_OPEN_OPTIONS 0x01
#define SRB_MODIFY_RECEIVE_OPTIONS 0x17
#define SRB_NO_OPERATION 0x00
#define SRB_OPEN_ADAPTER 0x03
#define SRB_READ_LOG 0x08
#define SRB_READ_SR_COUNTERS 0x16
#define SRB_RESET_GROUP_ADDRESS 0x02
#define SRB_SAVE_CONFIGURATION 0x1b
#define SRB_SET_BRIDGE_PARMS 0x09
#define SRB_SET_BRIDGE_TARGETS 0x10
#define SRB_SET_FUNC_ADDRESS 0x07
#define SRB_SET_GROUP_ADDRESS 0x06
#define SRB_SET_GROUP_ADDR_OPTIONS 0x11
#define SRB_UPDATE_WAKEUP_PATTERN 0x19
/* Clear return code */
#define OLYMPIC_CLEAR_RET_CODE 0xfe
/* ARB Commands */
#define ARB_RECEIVE_DATA 0x81
#define ARB_LAN_CHANGE_STATUS 0x84
/* ASB Response commands */
#define ASB_RECEIVE_DATA 0x81
/* Olympic defaults for buffers */
#define OLYMPIC_RX_RING_SIZE 16 /* should be a power of 2 */
#define OLYMPIC_TX_RING_SIZE 8 /* should be a power of 2 */
#define PKT_BUF_SZ 4096 /* Default packet size */
/* Olympic data structures */
/* xxxx These structures are all little endian in hardware. */
struct olympic_tx_desc {
__le32 buffer;
__le32 status_length;
};
struct olympic_tx_status {
__le32 status;
};
struct olympic_rx_desc {
__le32 buffer;
__le32 res_length;
};
struct olympic_rx_status {
__le32 fragmentcnt_framelen;
__le32 status_buffercnt;
};
/* xxxx END These structures are all little endian in hardware. */
/* xxxx There may be more, but I'm pretty sure about these */
struct mac_receive_buffer {
__le16 next ;
u8 padding ;
u8 frame_status ;
__le16 buffer_length ;
u8 frame_data ;
};
struct olympic_private {
u16 srb; /* be16 */
u16 trb; /* be16 */
u16 arb; /* be16 */
u16 asb; /* be16 */
u8 __iomem *olympic_mmio;
u8 __iomem *olympic_lap;
struct pci_dev *pdev ;
char *olympic_card_name ;
spinlock_t olympic_lock ;
volatile int srb_queued; /* True if an SRB is still posted */
wait_queue_head_t srb_wait;
volatile int asb_queued; /* True if an ASB is posted */
volatile int trb_queued; /* True if a TRB is posted */
wait_queue_head_t trb_wait ;
/* These must be on a 4 byte boundary. */
struct olympic_rx_desc olympic_rx_ring[OLYMPIC_RX_RING_SIZE];
struct olympic_tx_desc olympic_tx_ring[OLYMPIC_TX_RING_SIZE];
struct olympic_rx_status olympic_rx_status_ring[OLYMPIC_RX_RING_SIZE];
struct olympic_tx_status olympic_tx_status_ring[OLYMPIC_TX_RING_SIZE];
struct sk_buff *tx_ring_skb[OLYMPIC_TX_RING_SIZE], *rx_ring_skb[OLYMPIC_RX_RING_SIZE];
int tx_ring_free, tx_ring_last_status, rx_ring_last_received,rx_status_last_received, free_tx_ring_entries;
struct net_device_stats olympic_stats ;
u16 olympic_lan_status ;
u8 olympic_ring_speed ;
u16 pkt_buf_sz ;
u8 olympic_receive_options, olympic_copy_all_options,olympic_message_level, olympic_network_monitor;
u16 olympic_addr_table_addr, olympic_parms_addr ;
u8 olympic_laa[6] ;
u32 rx_ring_dma_addr;
u32 rx_status_ring_dma_addr;
u32 tx_ring_dma_addr;
u32 tx_status_ring_dma_addr;
};
struct olympic_adapter_addr_table {
u8 node_addr[6] ;
u8 reserved[4] ;
u8 func_addr[4] ;
} ;
struct olympic_parameters_table {
u8 phys_addr[4] ;
u8 up_node_addr[6] ;
u8 up_phys_addr[4] ;
u8 poll_addr[6] ;
u16 reserved ;
u16 acc_priority ;
u16 auth_source_class ;
u16 att_code ;
u8 source_addr[6] ;
u16 beacon_type ;
u16 major_vector ;
u16 lan_status ;
u16 soft_error_time ;
u16 reserved1 ;
u16 local_ring ;
u16 mon_error ;
u16 beacon_transmit ;
u16 beacon_receive ;
u16 frame_correl ;
u8 beacon_naun[6] ;
u32 reserved2 ;
u8 beacon_phys[4] ;
};