/* $NetBSD: i82596var.h,v 1.6 2006/07/08 16:07:47 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]; /* Destination 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 specific 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 *);