diff options
Diffstat (limited to 'drivers/net/7990.h')
| -rw-r--r-- | drivers/net/7990.h | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/net/7990.h b/drivers/net/7990.h index 31ae5099738..b1212b5ed92 100644 --- a/drivers/net/7990.h +++ b/drivers/net/7990.h @@ -1,9 +1,9 @@ -/* +/* * 7990.h -- LANCE ethernet IC generic routines. * This is an attempt to separate out the bits of various ethernet * drivers that are common because they all use the AMD 7990 LANCE * (Local Area Network Controller for Ethernet) chip. - * + * * Copyright (C) 05/1998 Peter Maydell <pmaydell@chiark.greenend.org.uk> * * Most of this stuff was obtained by looking at other LANCE drivers, @@ -55,7 +55,7 @@ struct lance_rx_desc { */ volatile unsigned short mblength; /* Actual number of bytes received */ }; - + /* Ditto for TMD: */ struct lance_tx_desc { volatile unsigned short tmd0; /* low address of packet */ @@ -80,8 +80,8 @@ struct lance_init_block { volatile unsigned short rx_len; /* receive len and high addr */ volatile unsigned short tx_ptr; /* transmit descriptor addr */ volatile unsigned short tx_len; /* transmit len and high addr */ - - /* The Tx and Rx ring entries must be aligned on 8-byte boundaries. + + /* The Tx and Rx ring entries must be aligned on 8-byte boundaries. * This will be true if this whole struct is 8-byte aligned. */ volatile struct lance_tx_desc btx_ring[TX_RING_SIZE]; @@ -104,21 +104,21 @@ struct lance_private unsigned long base; volatile struct lance_init_block *init_block; /* CPU address of RAM */ volatile struct lance_init_block *lance_init_block; /* LANCE address of RAM */ - + int rx_new, tx_new; int rx_old, tx_old; - + int lance_log_rx_bufs, lance_log_tx_bufs; int rx_ring_mod_mask, tx_ring_mod_mask; - + struct net_device_stats stats; int tpe; /* TPE is selected */ int auto_select; /* cable-selection is by carrier */ unsigned short busmaster_regval; unsigned int irq; /* IRQ to register */ - - /* This is because the HP LANCE is disgusting and you have to check + + /* This is because the HP LANCE is disgusting and you have to check * a DIO-specific register every time you read/write the LANCE regs :-< * [could we get away with making these some sort of macro?] */ @@ -148,7 +148,7 @@ struct lance_private #define LE_C0_RINT 0x0400 /* Receive Interrupt */ #define LE_C0_TINT 0x0200 /* Transmit Interrupt */ #define LE_C0_IDON 0x0100 /* Initialization Done */ -#define LE_C0_INTR 0x0080 /* Interrupt Flag +#define LE_C0_INTR 0x0080 /* Interrupt Flag = BABL | MISS | MERR | RINT | TINT | IDON */ #define LE_C0_INEA 0x0040 /* Interrupt Enable */ #define LE_C0_RXON 0x0020 /* Receive On */ @@ -185,7 +185,7 @@ struct lance_private #define LE_MO_PSEL1 0x0100 /* port selection bit1 */ #define LE_MO_PSEL0 0x0080 /* port selection bit0 */ /* and this one is from the C-LANCE data sheet... */ -#define LE_MO_EMBA 0x0080 /* Enable Modified Backoff Algorithm +#define LE_MO_EMBA 0x0080 /* Enable Modified Backoff Algorithm (C-LANCE, not original LANCE) */ #define LE_MO_INTL 0x0040 /* Internal Loopback */ #define LE_MO_DRTY 0x0020 /* Disable Retry */ |