diff options
Diffstat (limited to 'sys/arch/sparc/dev/hmereg.h')
| -rw-r--r-- | sys/arch/sparc/dev/hmereg.h | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/sys/arch/sparc/dev/hmereg.h b/sys/arch/sparc/dev/hmereg.h index ac5327dba67..b54a903e407 100644 --- a/sys/arch/sparc/dev/hmereg.h +++ b/sys/arch/sparc/dev/hmereg.h @@ -1,4 +1,4 @@ -/* $OpenBSD: hmereg.h,v 1.4 1998/07/17 21:33:08 jason Exp $ */ +/* $OpenBSD: hmereg.h,v 1.5 1998/09/01 17:36:59 jason Exp $ */ /* * Copyright (c) 1998 Jason L. Wright (jason@thought.net) @@ -357,6 +357,48 @@ struct hme_swr { #define HME_TIMER_AUTONEG 1 /* autonegotiating */ #define HME_TIMER_LINKUP 2 /* waiting for link up */ +struct hme_rxd { + volatile u_int32_t rx_flags; + volatile u_int32_t rx_addr; +}; +#define HME_RXD_OWN 0x80000000 /* desc owner: 1=hw,0=sw */ +#define HME_RXD_OVERFLOW 0x40000000 /* 1 = buffer over flow */ +#define HME_RXD_SIZE 0x3fff0000 /* desciptor size */ +#define HME_RXD_CSUM 0x0000ffff /* checksum mask */ + +struct hme_txd { + volatile u_int32_t tx_flags; + volatile u_int32_t tx_addr; +}; +#define HME_TXD_OWN 0x80000000 /* desc owner: 1=hw,0=sw */ +#define HME_TXD_SOP 0x40000000 /* 1 = start of pkt */ +#define HME_TXD_EOP 0x20000000 /* 1 = end of pkt */ +#define HME_TXD_CSENABLE 0x10000000 /* 1 = use hw checksums */ +#define HME_TXD_CSLOCATION 0x0ff00000 /* checksum location mask */ +#define HME_TXD_CSBUFBEGIN 0x000fc000 /* checksum begin mask */ +#define HME_TXD_SIZE 0x00003fff /* pkt size mask */ + +#define HME_RX_RING_SIZE 32 /* Must be 32,64,128, or 256 */ +#define HME_TX_RING_SIZE 32 /* 16<=x<=256 and div by 16 */ +#define HME_RX_RING_MAX 256 /* maximum ring size: rx */ +#define HME_TX_RING_MAX 256 /* maximum ring size: tx */ +#define HME_RX_PKT_BUF_SZ 2048 /* size of a rx buffer */ +#define HME_RX_OFFSET 2 /* packet offset */ +#define HME_RX_CSUMLOC 0x00 /* checksum location */ +#define HME_TX_PKT_BUF_SZ 1546 /* size of a tx buffer */ +#define HME_RX_ALIGN_SIZE 64 /* XXX rx bufs must align 64 */ +#define HME_RX_ALIGN_MASK (~(RX_ALIGN_SIZE - 1)) + +struct hme_desc { + struct hme_rxd hme_rxd[HME_RX_RING_MAX]; + struct hme_txd hme_txd[HME_TX_RING_MAX]; +}; + +struct hme_bufs { + char rx_buf[HME_RX_RING_SIZE][HME_RX_PKT_BUF_SZ]; + char tx_buf[HME_TX_RING_SIZE][HME_TX_PKT_BUF_SZ]; +}; + /* * National Semiconductor DP83840A chip definitions * Documentation available from National at: |