i82596var.h

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    1 /* $NetBSD: i82596var.h,v 1.15 2009/12/01 23:16:01 skrll Exp $ */
    2 
    3 /*
    4  * Copyright (c) 2003 Jochen Kunz.
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. The name of Jochen Kunz may not be used to endorse or promote
   16  *    products derived from this software without specific prior
   17  *    written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY JOCHEN KUNZ
   20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL JOCHEN KUNZ
   23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   29  * POSSIBILITY OF SUCH DAMAGE.
   30  */
   31 
   32 /* All definitions are for a Intel 82596 DX/SX / CA in linear 32 bit mode. */
   33 
   34 
   35 
   36 /* Supported chip variants */
   37 extern const char *i82596_typenames[];
   38 enum i82596_types { I82596_UNKNOWN, I82596_DX, I82596_CA };
   39 
   40 
   41 
   42 /* System Configuration Pointer */
   43 struct iee_scp {
   44         volatile uint16_t scp_pad1;
   45         volatile uint16_t scp_sysbus;           /* Sysbus Byte */
   46         volatile uint32_t scp_pad2;
   47         volatile uint32_t scp_iscp_addr;        /* Int. Sys. Conf. Pointer */
   48 } __packed;
   49 
   50 
   51 
   52 /* Intermediate System Configuration Pointer */
   53 struct iee_iscp {
   54         volatile uint16_t iscp_busy;            /* Even Word, bits 0..15 */
   55         volatile uint16_t iscp_pad;             /* Odd Word, bits 16..32 */
   56         volatile uint32_t iscp_scb_addr;        /* address of SCB */
   57 } __packed;
   58 
   59 
   60 
   61 /* System Control Block */
   62 struct iee_scb {
   63         volatile uint16_t scb_status;           /* Status Bits */
   64         volatile uint16_t scb_cmd;              /* Command Bits */
   65         volatile uint32_t scb_cmd_blk_addr;     /* Command Block Address */
   66         volatile uint32_t scb_rfa_addr;         /* Receive Frame Area Address */
   67         volatile uint32_t scb_crc_err;          /* CRC Errors */
   68         volatile uint32_t scb_align_err;        /* Alignment Errors */
   69         volatile uint32_t scb_resource_err;     /* Resource Errors [1] */
   70         volatile uint32_t scb_overrun_err;      /* Overrun Errors [1] */
   71         volatile uint32_t scb_rcvcdt_err;       /* RCVCDT Errors [1] */
   72         volatile uint32_t scb_short_fr_err;     /* Short Frame Errors */
   73         volatile uint16_t scb_tt_off;           /* Bus Throtle Off Timer */
   74         volatile uint16_t scb_tt_on;            /* Bus Throtle On Timer */
   75 } __packed;
   76 /* [1] In MONITOR mode these counters change function. */
   77 
   78 
   79 
   80 /* Command Block */
   81 struct iee_cb {
   82         volatile uint16_t cb_status;            /* Status Bits */
   83         volatile uint16_t cb_cmd;               /* Command Bits */
   84         volatile uint32_t cb_link_addr;         /* Link Address to next CMD */
   85         union {
   86                 volatile uint8_t cb_ind_addr[8];/* Individual Address */
   87                 volatile uint8_t cb_cf[16];     /* Configuration Bytes */
   88                 struct {
   89                         volatile uint16_t mc_size;/* Num bytes of Mcast Addr.*/
   90                         volatile uint8_t mc_addrs[6]; /* List of Mcast Addr. */
   91                 } cb_mcast;
   92                 struct {
   93                         volatile uint32_t tx_tbd_addr;/* TX Buf. Descr. Addr.*/
   94                         volatile uint16_t tx_tcb_count; /* Len. of opt. data */
   95                         volatile uint16_t tx_pad;
   96                         volatile uint8_t tx_dest_addr[6]; /* Dest. Addr. */
   97                         volatile uint16_t tx_length; /* Length of data */
   98                         /* uint8_t data;         Data to send, optional */
   99                 } cb_transmit;
  100                 volatile uint32_t cb_tdr;       /* Time & Flags from TDR CMD */
  101                 volatile uint32_t cb_dump_addr; /* Address of Dump buffer */
  102         };
  103 } __packed;
  104 
  105 
  106 
  107 /* Transmit Buffer Descriptor */
  108 struct iee_tbd {
  109         volatile uint16_t tbd_size;             /* Size of buffer & Flags */
  110         volatile uint16_t tbd_pad;
  111         volatile uint32_t tbd_link_addr;        /* Link Address to next RFD */
  112         volatile uint32_t tbd_tb_addr;          /* Transmit Buffer Address */
  113 } __packed;
  114 
  115 
  116 
  117 /* Receive Frame Descriptor */
  118 struct iee_rfd {
  119         volatile uint16_t rfd_status;           /* Status Bits */
  120         volatile uint16_t rfd_cmd;              /* Command Bits */
  121         volatile uint32_t rfd_link_addr;        /* Link Address to next RFD */
  122         volatile uint32_t rfd_rbd_addr;         /* Address of first free RBD */
  123         volatile uint16_t rfd_count;            /* Actual Count */
  124         volatile uint16_t rfd_size;             /* Size */
  125         volatile uint8_t rfd_dest_addr[6];      /* Destination Address */
  126         volatile uint8_t rfd_src_addr[6];       /* Source Address */
  127         volatile uint16_t rfd_length;           /* Length Field */
  128         volatile uint16_t rfd_pad;              /* Optional Data */
  129 } __packed;
  130 
  131 
  132 
  133 /* Receive Buffer Descriptor */
  134 struct iee_rbd {
  135         volatile uint16_t rbd_count;            /* Actual Cont of bytes */
  136         volatile uint16_t rbd_pad1;
  137         volatile uint32_t rbd_next_rbd;         /* Address of Next RBD */
  138         volatile uint32_t rbd_rb_addr;          /* Receive Buffer Address */
  139         volatile uint16_t rbd_size;             /* Size of Receive Buffer */
  140         volatile uint16_t rbd_pad2;
  141 } __packed;
  142 
  143 
  144 
  145 #define IEE_NRFD        32      /* Number of RFDs == length of receive queue */
  146 #define IEE_NCB         32      /* Number of Command Blocks == transmit queue */
  147 #define IEE_NTBD        16      /* Number of TBDs per CB */
  148 
  149 
  150 
  151 struct iee_softc {
  152         device_t sc_dev;                /* common device data */
  153         struct ifmedia sc_ifmedia;      /* media interface */
  154         struct ethercom sc_ethercom;    /* ethernet specific stuff */
  155         enum i82596_types sc_type;
  156         bus_dma_tag_t sc_dmat;
  157         bus_dmamap_t sc_shmem_map;
  158         bus_dma_segment_t sc_dma_segs;
  159         int sc_dma_rsegs;
  160         bus_dmamap_t sc_rx_map[IEE_NRFD];
  161         bus_dmamap_t sc_tx_map[IEE_NCB];
  162         struct mbuf *sc_rx_mbuf[IEE_NRFD];
  163         struct mbuf *sc_tx_mbuf[IEE_NCB];
  164         uint8_t *sc_shmem_addr;
  165         int sc_next_cb;
  166         int sc_next_tbd;
  167         int sc_rx_done;
  168         uint8_t sc_cf[14];
  169         int sc_flags;
  170         int sc_cl_align;
  171         int sc_scp_off;
  172         int sc_scp_sz;
  173         int sc_iscp_off;
  174         int sc_iscp_sz;
  175         int sc_scb_off;
  176         int sc_scb_sz;
  177         int sc_rfd_off;
  178         int sc_rfd_sz;
  179         int sc_rbd_off;
  180         int sc_rbd_sz;
  181         int sc_cb_off;
  182         int sc_cb_sz;
  183         int sc_tbd_off;
  184         int sc_tbd_sz;
  185         int sc_shmem_sz;
  186         uint32_t sc_sysbus;
  187         uint32_t sc_crc_err;
  188         uint32_t sc_align_err;
  189         uint32_t sc_resource_err;
  190         uint32_t sc_overrun_err;
  191         uint32_t sc_rcvcdt_err;
  192         uint32_t sc_short_fr_err;
  193         uint32_t sc_receive_err;
  194         uint32_t sc_tx_col;
  195         uint32_t sc_rx_err;
  196         uint32_t sc_cmd_err;
  197         uint32_t sc_tx_timeout;
  198         uint32_t sc_setup_timeout;
  199         int (*sc_iee_cmd)(struct iee_softc *, uint32_t);
  200         int (*sc_iee_reset)(struct iee_softc *);
  201         void (*sc_mediastatus)(struct ifnet *, struct ifmediareq *);
  202         int (*sc_mediachange)(struct ifnet *);
  203 };
  204 
  205 
  206 
  207 /* Flags */
  208 #define IEE_NEED_SWAP   0x01
  209 #define IEE_WANT_MCAST  0x02
  210 #define IEE_REV_A       0x04
  211 
  212 /*
  213  * Rev A1 chip doesn't have 32-bit BE mode and all 32 bit pointers are
  214  * treated as two 16-bit big endian entities.
  215  */
  216 #define IEE_SWAPA32(x)  ((sc->sc_flags & (IEE_NEED_SWAP|IEE_REV_A)) ==  \
  217                             (IEE_NEED_SWAP|IEE_REV_A) ?                 \
  218                             (((x) << 16) | ((x) >> 16)) : (x))
  219 /*
  220  * The SCB absolute address and statistical counters are
  221  * always treated as two 16-bit big endian entities
  222  * even in 32-bit BE mode supported by Rev B and C chips.
  223  */
  224 #define IEE_SWAP32(x)   ((sc->sc_flags & IEE_NEED_SWAP) != 0 ?          \
  225                             (((x) << 16) | ((x) >> 16)) : (x))
  226 #define IEE_PHYS_SHMEM(x) ((uint32_t) (sc->sc_shmem_map->dm_segs[0].ds_addr \
  227                         + (x)))
  228 
  229 #define SC_SCP(sc)      ((struct iee_scp *)((sc)->sc_shmem_addr +       \
  230                             (sc)->sc_scp_off))
  231 #define SC_ISCP(sc)     ((struct iee_iscp *)((sc)->sc_shmem_addr +      \
  232                             (sc)->sc_iscp_off))
  233 #define SC_SCB(sc)      ((struct iee_scb *)((sc)->sc_shmem_addr +       \
  234                             (sc)->sc_scb_off))
  235 #define SC_RFD(sc, n)   ((struct iee_rfd *)((sc)->sc_shmem_addr +       \
  236                             (sc)->sc_rfd_off +                          \
  237                             (n) * (sc)->sc_rfd_sz))
  238 #define SC_RBD(sc, n)   ((struct iee_rbd *)((sc)->sc_shmem_addr +       \
  239                             (sc)->sc_rbd_off +                          \
  240                             (n) * (sc)->sc_rbd_sz))
  241 #define SC_CB(sc, n)    ((struct iee_cb *)((sc)->sc_shmem_addr +        \
  242                             (sc)->sc_cb_off +                           \
  243                             (n) * (sc)->sc_cb_sz))
  244 #define SC_TBD(sc, n)   ((struct iee_tbd *)((sc)->sc_shmem_addr +       \
  245                             (sc)->sc_tbd_off +                          \
  246                             (n) * (sc)->sc_tbd_sz))
  247 
  248 #define IEE_SCPSYNC(sc, ops)                                            \
  249         bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_shmem_map,              \
  250             (sc)->sc_scb_off, (sc)->sc_scp_sz, (ops))
  251 #define IEE_ISCPSYNC(sc, ops)                                           \
  252         bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_shmem_map,              \
  253             (sc)->sc_iscp_off, (sc)->sc_iscp_sz, (ops))
  254 #define IEE_SCBSYNC(sc, ops)                                            \
  255         bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_shmem_map,              \
  256             (sc)->sc_scb_off, (sc)->sc_scb_sz, (ops))
  257 #define IEE_RFDSYNC(sc, n, ops)                                         \
  258         bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_shmem_map,              \
  259             (sc)->sc_rfd_off + (n) * (sc)->sc_rfd_sz,                   \
  260             (sc)->sc_rfd_sz, (ops))
  261 #define IEE_RBDSYNC(sc, n, ops)                                         \
  262         bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_shmem_map,              \
  263             (sc)->sc_rbd_off + (n) * (sc)->sc_rbd_sz,                   \
  264             (sc)->sc_rbd_sz, (ops))
  265 #define IEE_CBSYNC(sc, n, ops)                                          \
  266         bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_shmem_map,              \
  267             (sc)->sc_cb_off + (n) * (sc)->sc_cb_sz,                     \
  268             (sc)->sc_cb_sz, (ops))
  269 #define IEE_TBDSYNC(sc, n, ops)                                         \
  270         bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_shmem_map,              \
  271             (sc)->sc_tbd_off + (n) * (sc)->sc_tbd_sz,                   \
  272             (sc)->sc_tbd_sz, (ops))
  273 
  274 void iee_attach(struct iee_softc *, uint8_t *, int *, int, int);
  275 void iee_detach(struct iee_softc *, int);
  276 int iee_intr(void *);
  277 
  278 
  279 
  280
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FreeBSD/Linux Kernel Cross Reference sys/dev/ic/i82596var.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/i82596var.h
