263 lines
9.0 KiB
C
263 lines
9.0 KiB
C
/* $NetBSD: i82596var.h,v 1.8 2007/03/04 12:26:22 tsutsui Exp $ */
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/*
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* Copyright (c) 2003 Jochen Kunz.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of Jochen Kunz may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY JOCHEN KUNZ
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JOCHEN KUNZ
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/* All definitions are for a Intel 82596 DX/SX / CA in linear 32 bit mode. */
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/* Supported chip variants */
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extern const char *i82596_typenames[];
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enum i82596_types { I82596_UNKNOWN, I82596_DX, I82596_CA };
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/* System Configuration Pointer */
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struct iee_scp {
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volatile uint16_t scp_pad1;
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volatile uint16_t scp_sysbus; /* Sysbus Byte */
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volatile uint32_t scp_pad2;
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volatile uint32_t scp_iscp_addr; /* Int. Sys. Conf. Pointer */
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} __attribute__((__packed__));
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/* Intermediate System Configuration Pointer */
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struct iee_iscp {
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volatile uint16_t iscp_bussy; /* Even Word, bits 0..15 */
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volatile uint16_t iscp_pad; /* Odd Word, bits 16..32 */
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volatile uint32_t iscp_scb_addr; /* address of SCB */
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} __attribute__((__packed__));
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/* System Control Block */
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struct iee_scb {
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volatile uint16_t scb_status; /* Status Bits */
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volatile uint16_t scb_cmd; /* Command Bits */
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volatile uint32_t scb_cmd_blk_addr; /* Command Block Address */
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volatile uint32_t scb_rfa_addr; /* Receive Frame Area Address */
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volatile uint32_t scb_crc_err; /* CRC Errors */
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volatile uint32_t scb_align_err; /* Alignment Errors */
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volatile uint32_t scb_resource_err; /* Resource Errors [1] */
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volatile uint32_t scb_overrun_err; /* Overrun Errors [1] */
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volatile uint32_t scb_rcvcdt_err; /* RCVCDT Errors [1] */
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volatile uint32_t scb_short_fr_err; /* Short Frame Errors */
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volatile uint16_t scb_tt_off; /* Bus Throtle Off Timer */
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volatile uint16_t scb_tt_on; /* Bus Throtle On Timer */
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} __attribute__((__packed__));
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/* [1] In MONITOR mode these counters change function. */
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/* Command Block */
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struct iee_cb {
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volatile uint16_t cb_status; /* Status Bits */
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volatile uint16_t cb_cmd; /* Command Bits */
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volatile uint32_t cb_link_addr; /* Link Address to next CMD */
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union {
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volatile uint8_t cb_ind_addr[8];/* Individual Address */
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volatile uint8_t cb_cf[16]; /* Configuration Bytes */
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struct {
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volatile uint16_t mc_size;/* Num bytes of Mcast Addr.*/
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volatile uint8_t mc_addrs[6]; /* List of Mcast Addr. */
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} cb_mcast;
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struct {
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volatile uint32_t tx_tbd_addr;/* TX Buf. Descr. Addr.*/
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volatile uint16_t tx_tcb_count; /* Len. of opt. data */
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volatile uint16_t tx_pad;
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volatile uint8_t tx_dest_addr[6]; /* Dest. Addr. */
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volatile uint16_t tx_length; /* Length of data */
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/* uint8_t data; Data to send, optional */
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} cb_transmit;
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volatile uint32_t cb_tdr; /* Time & Flags from TDR CMD */
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volatile uint32_t cb_dump_addr; /* Address of Dump buffer */
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};
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} __attribute__((__packed__));
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/* Transmit Buffer Descriptor */
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struct iee_tbd {
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volatile uint16_t tbd_size; /* Size of buffer & Flags */
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volatile uint16_t tbd_pad;
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volatile uint32_t tbd_link_addr; /* Link Address to next RFD */
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volatile uint32_t tbd_tb_addr; /* Transmit Buffer Address */
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} __attribute__((__packed__));
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/* Receive Frame Descriptor */
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struct iee_rfd {
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volatile uint16_t rfd_status; /* Status Bits */
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volatile uint16_t rfd_cmd; /* Command Bits */
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volatile uint32_t rfd_link_addr; /* Link Address to next RFD */
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volatile uint32_t rfd_rbd_addr; /* Address of first free RBD */
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volatile uint16_t rfd_count; /* Actual Count */
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volatile uint16_t rfd_size; /* Size */
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volatile uint8_t rfd_dest_addr[6]; /* Destination Address */
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volatile uint8_t rfd_src_addr[6]; /* Source Address */
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volatile uint16_t rfd_length; /* Length Field */
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volatile uint16_t rfd_pad; /* Optional Data */
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} __attribute__((__packed__));
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/* Receive Buffer Descriptor */
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struct iee_rbd {
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volatile uint16_t rbd_count; /* Actual Cont of bytes */
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volatile uint16_t rbd_pad1;
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volatile uint32_t rbd_next_rbd; /* Address of Next RBD */
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volatile uint32_t rbd_rb_addr; /* Receive Buffer Address */
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volatile uint16_t rbd_size; /* Size of Receive Buffer */
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volatile uint16_t rbd_pad2;
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} __attribute__((__packed__));
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#define IEE_NRFD 32 /* Number of RFDs == length of receive queue */
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#define IEE_NCB 32 /* Number of Command Blocks == transmit queue */
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#define IEE_NTBD 16 /* Number of TBDs per CB */
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struct iee_softc {
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struct device sc_dev; /* common device data */
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struct ifmedia sc_ifmedia; /* media interface */
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struct ethercom sc_ethercom; /* ethernet specific stuff */
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enum i82596_types sc_type;
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bus_dma_tag_t sc_dmat;
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bus_dmamap_t sc_shmem_map;
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bus_dma_segment_t sc_dma_segs;
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bus_dmamap_t sc_rx_map[IEE_NRFD];
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bus_dmamap_t sc_tx_map[IEE_NCB];
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struct mbuf *sc_rx_mbuf[IEE_NRFD];
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struct mbuf *sc_tx_mbuf[IEE_NCB];
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uint8_t *sc_shmem_addr;
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int sc_next_cb;
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int sc_next_tbd;
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int sc_rx_done;
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uint8_t sc_cf[14];
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int sc_flags;
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int sc_cl_align;
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uint32_t sc_crc_err;
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uint32_t sc_align_err;
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uint32_t sc_resource_err;
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uint32_t sc_overrun_err;
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uint32_t sc_rcvcdt_err;
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uint32_t sc_short_fr_err;
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uint32_t sc_receive_err;
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uint32_t sc_tx_col;
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uint32_t sc_rx_err;
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uint32_t sc_cmd_err;
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uint32_t sc_tx_timeout;
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uint32_t sc_setup_timeout;
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int (*sc_iee_cmd)(struct iee_softc *, uint32_t);
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int (*sc_iee_reset)(struct iee_softc *);
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void (*sc_mediastatus)(struct ifnet *, struct ifmediareq *);
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int (*sc_mediachange)(struct ifnet *);
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};
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/* Flags */
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#define IEE_NEED_SWAP 0x01
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#define IEE_WANT_MCAST 0x02
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#define IEE_SWAP(x) ((sc->sc_flags & IEE_NEED_SWAP) == 0 ? x : \
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(((x) << 16) | ((x) >> 16)))
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#define IEE_PHYS_SHMEM(x) ((uint32_t) (sc->sc_shmem_map->dm_segs[0].ds_addr \
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+ (x)))
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/* Offsets in shared memory */
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#define IEE_SCP_SZ (((sizeof(struct iee_scp) - 1) / (sc)->sc_cl_align + 1)\
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* (sc)->sc_cl_align)
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#define IEE_SCP_OFF 0
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#define IEE_ISCP_SZ (((sizeof(struct iee_iscp) - 1) / (sc)->sc_cl_align + 1)\
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* (sc)->sc_cl_align)
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#define IEE_ISCP_OFF IEE_SCP_SZ
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#define IEE_SCB_SZ (((sizeof(struct iee_scb) - 1) / (sc)->sc_cl_align + 1)\
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* (sc)->sc_cl_align)
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#define IEE_SCB_OFF (IEE_SCP_SZ + IEE_ISCP_SZ)
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#define IEE_RFD_SZ (((sizeof(struct iee_rfd) - 1) / (sc)->sc_cl_align + 1)\
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* (sc)->sc_cl_align)
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#define IEE_RFD_LIST_SZ (IEE_RFD_SZ * IEE_NRFD)
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#define IEE_RFD_OFF (IEE_SCP_SZ + IEE_ISCP_SZ + IEE_SCB_SZ)
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#define IEE_RBD_SZ (((sizeof(struct iee_rbd) - 1) / (sc)->sc_cl_align + 1)\
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* (sc)->sc_cl_align)
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#define IEE_RBD_LIST_SZ (IEE_RBD_SZ * IEE_NRFD)
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#define IEE_RBD_OFF (IEE_SCP_SZ + IEE_ISCP_SZ + IEE_SCB_SZ \
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+ IEE_RFD_SZ * IEE_NRFD)
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#define IEE_CB_SZ (((sizeof(struct iee_cb) - 1) / (sc)->sc_cl_align + 1)\
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* (sc)->sc_cl_align)
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#define IEE_CB_LIST_SZ (IEE_CB_SZ * IEE_NCB)
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#define IEE_CB_OFF (IEE_SCP_SZ + IEE_ISCP_SZ + IEE_SCB_SZ \
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+ IEE_RFD_SZ * IEE_NRFD + IEE_RBD_SZ * IEE_NRFD)
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#define IEE_TBD_SZ (((sizeof(struct iee_tbd) - 1) / (sc)->sc_cl_align + 1)\
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* (sc)->sc_cl_align)
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#define IEE_TBD_LIST_SZ (IEE_TBD_SZ * IEE_NTBD * IEE_NCB)
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#define IEE_TBD_OFF (IEE_SCP_SZ + IEE_ISCP_SZ + IEE_SCB_SZ \
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+ IEE_RFD_SZ * IEE_NRFD + IEE_RBD_SZ * IEE_NRFD \
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+ IEE_CB_SZ * IEE_NCB)
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#define IEE_SHMEM_MAX (IEE_SCP_SZ + IEE_ISCP_SZ + IEE_SCB_SZ \
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+ IEE_RFD_SZ * IEE_NRFD + IEE_RBD_SZ * IEE_NRFD \
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+ IEE_CB_SZ * IEE_NCB + IEE_TBD_SZ * IEE_NTBD * IEE_NCB)
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#define SC_SCP ((struct iee_scp*)((sc)->sc_shmem_addr + IEE_SCP_OFF))
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#define SC_ISCP ((struct iee_iscp*)((sc)->sc_shmem_addr + IEE_ISCP_OFF))
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#define SC_SCB ((struct iee_scb*)((sc)->sc_shmem_addr + IEE_SCB_OFF))
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#define SC_RFD(n) ((struct iee_rfd*)((sc)->sc_shmem_addr + IEE_RFD_OFF \
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+ (n) * IEE_RFD_SZ))
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#define SC_RBD(n) ((struct iee_rbd*)((sc)->sc_shmem_addr + IEE_RBD_OFF \
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+ (n) * IEE_RBD_SZ))
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#define SC_CB(n) ((struct iee_cb*)((sc)->sc_shmem_addr + IEE_CB_OFF \
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+ (n) * IEE_CB_SZ))
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#define SC_TBD(n) ((struct iee_tbd*)((sc)->sc_shmem_addr + IEE_TBD_OFF \
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+ (n) * IEE_TBD_SZ))
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void iee_attach(struct iee_softc *, uint8_t *, int *, int, int);
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void iee_detach(struct iee_softc *, int);
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int iee_intr(void *);
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