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NetBSD/sys/dev/ic/i82596var.h

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/* $NetBSD: i82596var.h,v 1.4 2005/06/03 07:03:22 skrll Exp $ */
/*
* Copyright (c) 2003 Jochen Kunz.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of Jochen Kunz may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY JOCHEN KUNZ
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JOCHEN KUNZ
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/* All definitions are for a Intel 82596 DX/SX / CA in linear 32 bit mode. */
/* Supported chip variants */
extern const char *i82596_typenames[];
enum i82596_types { I82596_UNKNOWN, I82596_DX, I82596_CA };
/* System Configuration Pointer */
struct iee_scp {
volatile uint16_t scp_pad1;
volatile uint16_t scp_sysbus; /* Sysbus Byte */
volatile uint32_t scp_pad2;
volatile uint32_t scp_iscp_addr; /* Int. Sys. Conf. Pointer */
} __attribute__((__packed__));
/* Intermediate System Configuration Pointer */
struct iee_iscp {
volatile uint16_t iscp_bussy; /* Even Word, bits 0..15 */
volatile uint16_t iscp_pad; /* Odd Word, bits 16..32 */
volatile uint32_t iscp_scb_addr; /* address of SCB */
} __attribute__((__packed__));
/* System Control Block */
struct iee_scb {
volatile uint16_t scb_status; /* Status Bits */
volatile uint16_t scb_cmd; /* Command Bits */
volatile uint32_t scb_cmd_blk_addr; /* Command Block Address */
volatile uint32_t scb_rfa_addr; /* Receive Frame Area Address */
volatile uint32_t scb_crc_err; /* CRC Errors */
volatile uint32_t scb_align_err; /* Alignment Errors */
volatile uint32_t scb_resource_err; /* Resource Errors [1] */
volatile uint32_t scb_overrun_err; /* Overrun Errors [1] */
volatile uint32_t scb_rcvcdt_err; /* RCVCDT Errors [1] */
volatile uint32_t scb_short_fr_err; /* Short Frame Errors */
volatile uint16_t scb_tt_off; /* Bus Throtle Off Timer */
volatile uint16_t scb_tt_on; /* Bus Throtle On Timer */
} __attribute__((__packed__));
/* [1] In MONITOR mode these counters change function. */
/* Command Block */
struct iee_cb {
volatile uint16_t cb_status; /* Status Bits */
volatile uint16_t cb_cmd; /* Command Bits */
volatile uint32_t cb_link_addr; /* Link Address to next CMD */
union {
volatile uint8_t cb_ind_addr[8];/* Individual Address */
volatile uint8_t cb_cf[16]; /* Configuration Bytes */
struct {
volatile uint16_t mc_size;/* Num bytes of Mcast Addr.*/
volatile uint8_t mc_addrs[6]; /* List of Mcast Addr. */
} cb_mcast;
struct {
volatile uint32_t tx_tbd_addr;/* TX Buf. Descr. Addr.*/
volatile uint16_t tx_tcb_count; /* Len. of opt. data */
volatile uint16_t tx_pad;
volatile uint8_t tx_dest_addr[6]; /* Dest. Addr. */
volatile uint16_t tx_length; /* Length of data */
/* uint8_t data; Data to send, optional */
} cb_transmit;
volatile uint32_t cb_tdr; /* Time & Flags from TDR CMD */
volatile uint32_t cb_dump_addr; /* Address of Dump buffer */
};
} __attribute__((__packed__));
/* Transmit Buffer Descriptor */
struct iee_tbd {
volatile uint16_t tbd_size; /* Size of buffer & Flags */
volatile uint16_t tbd_pad;
volatile uint32_t tbd_link_addr; /* Link Address to next RFD */
volatile uint32_t tbd_tb_addr; /* Transmit Buffer Address */
} __attribute__((__packed__));
/* Receive Frame Descriptor */
struct iee_rfd {
volatile uint16_t rfd_status; /* Status Bits */
volatile uint16_t rfd_cmd; /* Command Bits */
volatile uint32_t rfd_link_addr; /* Link Address to next RFD */
volatile uint32_t rfd_rbd_addr; /* Address of first free RBD */
volatile uint16_t rfd_count; /* Actual Count */
volatile uint16_t rfd_size; /* Size */
volatile uint8_t rfd_dest_addr[6]; /* Destiantion Address */
volatile uint8_t rfd_src_addr[6]; /* Source Address */
volatile uint16_t rfd_length; /* Length Field */
volatile uint16_t rfd_pad; /* Optional Data */
} __attribute__((__packed__));
/* Receive Buffer Descriptor */
struct iee_rbd {
volatile uint16_t rbd_count; /* Actual Cont of bytes */
volatile uint16_t rbd_pad1;
volatile uint32_t rbd_next_rbd; /* Address of Next RBD */
volatile uint32_t rbd_rb_addr; /* Receive Buffer Address */
volatile uint16_t rbd_size; /* Size of Receive Buffer */
volatile uint16_t rbd_pad2;
} __attribute__((__packed__));
#define IEE_NRFD 32 /* Number of RFDs == length of receive queue */
#define IEE_NCB 32 /* Number of Command Blocks == transmit queue */
#define IEE_NTBD 16 /* Number of TBDs per CB */
struct iee_softc {
struct device sc_dev; /* common device data */
struct ifmedia sc_ifmedia; /* media interface */
struct ethercom sc_ethercom; /* ethernet speciffic stuff */
enum i82596_types sc_type;
bus_dma_tag_t sc_dmat;
bus_dmamap_t sc_shmem_map;
bus_dma_segment_t sc_dma_segs;
bus_dmamap_t sc_rx_map[IEE_NRFD];
bus_dmamap_t sc_tx_map[IEE_NCB];
struct mbuf *sc_rx_mbuf[IEE_NRFD];
struct mbuf *sc_tx_mbuf[IEE_NCB];
caddr_t sc_shmem_addr;
int sc_next_cb;
int sc_next_tbd;
int sc_rx_done;
uint8_t sc_cf[14];
int sc_flags;
int sc_cl_align;
uint32_t sc_crc_err;
uint32_t sc_align_err;
uint32_t sc_resource_err;
uint32_t sc_overrun_err;
uint32_t sc_rcvcdt_err;
uint32_t sc_short_fr_err;
uint32_t sc_receive_err;
uint32_t sc_tx_col;
uint32_t sc_rx_err;
uint32_t sc_cmd_err;
uint32_t sc_tx_timeout;
uint32_t sc_setup_timeout;
int (*sc_iee_cmd)(struct iee_softc *, uint32_t);
int (*sc_iee_reset)(struct iee_softc *);
void (*sc_mediastatus)(struct ifnet *, struct ifmediareq *);
int (*sc_mediachange)(struct ifnet *);
};
/* Flags */
#define IEE_NEED_SWAP 0x01
#define IEE_WANT_MCAST 0x02
#define IEE_SWAP(x) ((sc->sc_flags & IEE_NEED_SWAP) == 0 ? x : \
(((x) << 16) | ((x) >> 16)))
#define IEE_PHYS_SHMEM(x) ((uint32_t) (sc->sc_shmem_map->dm_segs[0].ds_addr \
+ (x)))
/* Offsets in shared memory */
#define IEE_SCP_SZ (((sizeof(struct iee_scp) - 1) / (sc)->sc_cl_align + 1)\
* (sc)->sc_cl_align)
#define IEE_SCP_OFF 0
#define IEE_ISCP_SZ (((sizeof(struct iee_iscp) - 1) / (sc)->sc_cl_align + 1)\
* (sc)->sc_cl_align)
#define IEE_ISCP_OFF IEE_SCP_SZ
#define IEE_SCB_SZ (((sizeof(struct iee_scb) - 1) / (sc)->sc_cl_align + 1)\
* (sc)->sc_cl_align)
#define IEE_SCB_OFF (IEE_SCP_SZ + IEE_ISCP_SZ)
#define IEE_RFD_SZ (((sizeof(struct iee_rfd) - 1) / (sc)->sc_cl_align + 1)\
* (sc)->sc_cl_align)
#define IEE_RFD_LIST_SZ (IEE_RFD_SZ * IEE_NRFD)
#define IEE_RFD_OFF (IEE_SCP_SZ + IEE_ISCP_SZ + IEE_SCB_SZ)
#define IEE_RBD_SZ (((sizeof(struct iee_rbd) - 1) / (sc)->sc_cl_align + 1)\
* (sc)->sc_cl_align)
#define IEE_RBD_LIST_SZ (IEE_RBD_SZ * IEE_NRFD)
#define IEE_RBD_OFF (IEE_SCP_SZ + IEE_ISCP_SZ + IEE_SCB_SZ \
+ IEE_RFD_SZ * IEE_NRFD)
#define IEE_CB_SZ (((sizeof(struct iee_cb) - 1) / (sc)->sc_cl_align + 1)\
* (sc)->sc_cl_align)
#define IEE_CB_LIST_SZ (IEE_CB_SZ * IEE_NCB)
#define IEE_CB_OFF (IEE_SCP_SZ + IEE_ISCP_SZ + IEE_SCB_SZ \
+ IEE_RFD_SZ * IEE_NRFD + IEE_RBD_SZ * IEE_NRFD)
#define IEE_TBD_SZ (((sizeof(struct iee_tbd) - 1) / (sc)->sc_cl_align + 1)\
* (sc)->sc_cl_align)
#define IEE_TBD_LIST_SZ (IEE_TBD_SZ * IEE_NTBD * IEE_NCB)
#define IEE_TBD_OFF (IEE_SCP_SZ + IEE_ISCP_SZ + IEE_SCB_SZ \
+ IEE_RFD_SZ * IEE_NRFD + IEE_RBD_SZ * IEE_NRFD \
+ IEE_CB_SZ * IEE_NCB)
#define IEE_SHMEM_MAX (IEE_SCP_SZ + IEE_ISCP_SZ + IEE_SCB_SZ \
+ IEE_RFD_SZ * IEE_NRFD + IEE_RBD_SZ * IEE_NRFD \
+ IEE_CB_SZ * IEE_NCB + IEE_TBD_SZ * IEE_NTBD * IEE_NCB)
#define SC_SCP ((struct iee_scp*)((sc)->sc_shmem_addr + IEE_SCP_OFF))
#define SC_ISCP ((struct iee_iscp*)((sc)->sc_shmem_addr + IEE_ISCP_OFF))
#define SC_SCB ((struct iee_scb*)((sc)->sc_shmem_addr + IEE_SCB_OFF))
#define SC_RFD(n) ((struct iee_rfd*)((sc)->sc_shmem_addr + IEE_RFD_OFF \
+ (n) * IEE_RFD_SZ))
#define SC_RBD(n) ((struct iee_rbd*)((sc)->sc_shmem_addr + IEE_RBD_OFF \
+ (n) * IEE_RBD_SZ))
#define SC_CB(n) ((struct iee_cb*)((sc)->sc_shmem_addr + IEE_CB_OFF \
+ (n) * IEE_CB_SZ))
#define SC_TBD(n) ((struct iee_tbd*)((sc)->sc_shmem_addr + IEE_TBD_OFF \
+ (n) * IEE_TBD_SZ))
void iee_attach(struct iee_softc *, uint8_t *, int *, int, int);
void iee_detach(struct iee_softc *, int);
int iee_intr(void *);
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