if_vgevar.h

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    1 /*-
    2  * Copyright (c) 2004
    3  *      Bill Paul <wpaul@windriver.com>.  All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 3. All advertising materials mentioning features or use of this software
   14  *    must display the following acknowledgement:
   15  *      This product includes software developed by Bill Paul.
   16  * 4. Neither the name of the author nor the names of any co-contributors
   17  *    may be used to endorse or promote products derived from this software
   18  *    without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
   24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   30  * THE POSSIBILITY OF SUCH DAMAGE.
   31  *
   32  * $FreeBSD$
   33  */
   34 
   35 #if !defined(__i386__)
   36 #define VGE_FIXUP_RX
   37 #endif
   38 
   39 #define VGE_JUMBO_MTU   9000
   40 
   41 #define VGE_IFQ_MAXLEN 64
   42 
   43 #define VGE_TX_DESC_CNT         256
   44 #define VGE_RX_DESC_CNT         256     /* Must be a multiple of 4!! */
   45 #define VGE_RING_ALIGN          256
   46 #define VGE_RX_LIST_SZ          (VGE_RX_DESC_CNT * sizeof(struct vge_rx_desc))
   47 #define VGE_TX_LIST_SZ          (VGE_TX_DESC_CNT * sizeof(struct vge_tx_desc))
   48 #define VGE_TX_DESC_INC(x)      (x = (x + 1) % VGE_TX_DESC_CNT)
   49 #define VGE_RX_DESC_INC(x)      (x = (x + 1) % VGE_RX_DESC_CNT)
   50 #define VGE_ADDR_LO(y)          ((u_int64_t) (y) & 0xFFFFFFFF)
   51 #define VGE_ADDR_HI(y)          ((u_int64_t) (y) >> 32)
   52 #define VGE_BUFLEN(y)           ((y) & 0x7FFF)
   53 #define VGE_OWN(x)              (le32toh((x)->vge_sts) & VGE_RDSTS_OWN)
   54 #define VGE_RXBYTES(x)          ((le32toh((x)->vge_sts) & \
   55                                  VGE_RDSTS_BUFSIZ) >> 16)
   56 #define VGE_MIN_FRAMELEN        60
   57 
   58 #ifdef VGE_FIXUP_RX
   59 #define VGE_ETHER_ALIGN         sizeof(uint32_t)
   60 #else
   61 #define VGE_ETHER_ALIGN         0
   62 #endif
   63 
   64 struct vge_type {
   65         uint16_t                vge_vid;
   66         uint16_t                vge_did;
   67         char                    *vge_name;
   68 };
   69 
   70 struct vge_softc;
   71 
   72 struct vge_dmaload_arg {
   73         struct vge_softc        *sc;
   74         int                     vge_idx;
   75         int                     vge_maxsegs;
   76         struct mbuf             *vge_m0;
   77         u_int32_t               vge_flags;
   78 };
   79 
   80 struct vge_list_data {
   81         struct mbuf             *vge_tx_mbuf[VGE_TX_DESC_CNT];
   82         struct mbuf             *vge_rx_mbuf[VGE_RX_DESC_CNT];
   83         int                     vge_tx_prodidx;
   84         int                     vge_rx_prodidx;
   85         int                     vge_tx_considx;
   86         int                     vge_tx_free;
   87         bus_dmamap_t            vge_tx_dmamap[VGE_TX_DESC_CNT];
   88         bus_dmamap_t            vge_rx_dmamap[VGE_RX_DESC_CNT];
   89         bus_dma_tag_t           vge_mtag;        /* mbuf mapping tag */
   90         bus_dma_tag_t           vge_rx_list_tag;
   91         bus_dmamap_t            vge_rx_list_map;
   92         struct vge_rx_desc      *vge_rx_list;
   93         bus_addr_t              vge_rx_list_addr;
   94         bus_dma_tag_t           vge_tx_list_tag;
   95         bus_dmamap_t            vge_tx_list_map;
   96         struct vge_tx_desc      *vge_tx_list;
   97         bus_addr_t              vge_tx_list_addr;
   98 };
   99 
  100 struct vge_softc {
  101         struct arpcom           arpcom;         /* interface info */
  102         device_t                vge_dev;
  103         bus_space_handle_t      vge_bhandle;    /* bus space handle */
  104         bus_space_tag_t         vge_btag;       /* bus space tag */
  105         struct resource         *vge_res;
  106         struct resource         *vge_irq;
  107         void                    *vge_intrhand;
  108         device_t                vge_miibus;
  109         bus_dma_tag_t           vge_parent_tag;
  110         bus_dma_tag_t           vge_tag;
  111         u_int8_t                vge_unit;       /* interface number */
  112         u_int8_t                vge_type;
  113         int                     vge_if_flags;
  114         int                     vge_rx_consumed;
  115         int                     vge_link;
  116         int                     vge_camidx;
  117         struct task             vge_txtask;
  118         struct mtx              vge_mtx;
  119         struct mbuf             *vge_head;
  120         struct mbuf             *vge_tail;
  121 
  122         struct vge_list_data    vge_ldata;
  123 
  124         int                     suspended;      /* 0 = normal  1 = suspended */
  125 #ifdef DEVICE_POLLING
  126         int                     rxcycles;
  127 #endif
  128 
  129         u_int32_t               saved_maps[5];  /* pci data */
  130         u_int32_t               saved_biosaddr;
  131         u_int8_t                saved_intline;
  132         u_int8_t                saved_cachelnsz;
  133         u_int8_t                saved_lattimer;
  134 };
  135 
  136 #define VGE_LOCK(_sc)           mtx_lock(&(_sc)->vge_mtx)
  137 #define VGE_UNLOCK(_sc)         mtx_unlock(&(_sc)->vge_mtx)
  138 #define VGE_LOCK_ASSERT(_sc)    mtx_assert(&(_sc)->vge_mtx, MA_OWNED)
  139 
  140 /*
  141  * register space access macros
  142  */
  143 #define CSR_WRITE_STREAM_4(sc, reg, val)        \
  144         bus_space_write_stream_4(sc->vge_btag, sc->vge_bhandle, reg, val)
  145 #define CSR_WRITE_4(sc, reg, val)       \
  146         bus_space_write_4(sc->vge_btag, sc->vge_bhandle, reg, val)
  147 #define CSR_WRITE_2(sc, reg, val)       \
  148         bus_space_write_2(sc->vge_btag, sc->vge_bhandle, reg, val)
  149 #define CSR_WRITE_1(sc, reg, val)       \
  150         bus_space_write_1(sc->vge_btag, sc->vge_bhandle, reg, val)
  151 
  152 #define CSR_READ_4(sc, reg)             \
  153         bus_space_read_4(sc->vge_btag, sc->vge_bhandle, reg)
  154 #define CSR_READ_2(sc, reg)             \
  155         bus_space_read_2(sc->vge_btag, sc->vge_bhandle, reg)
  156 #define CSR_READ_1(sc, reg)             \
  157         bus_space_read_1(sc->vge_btag, sc->vge_bhandle, reg)
  158 
  159 #define CSR_SETBIT_1(sc, reg, x)        \
  160         CSR_WRITE_1(sc, reg, CSR_READ_1(sc, reg) | (x))
  161 #define CSR_SETBIT_2(sc, reg, x)        \
  162         CSR_WRITE_2(sc, reg, CSR_READ_2(sc, reg) | (x))
  163 #define CSR_SETBIT_4(sc, reg, x)        \
  164         CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) | (x))
  165 
  166 #define CSR_CLRBIT_1(sc, reg, x)        \
  167         CSR_WRITE_1(sc, reg, CSR_READ_1(sc, reg) & ~(x))
  168 #define CSR_CLRBIT_2(sc, reg, x)        \
  169         CSR_WRITE_2(sc, reg, CSR_READ_2(sc, reg) & ~(x))
  170 #define CSR_CLRBIT_4(sc, reg, x)        \
  171         CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) & ~(x))
  172 
  173 #define VGE_TIMEOUT             10000
  174

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FreeBSD/Linux Kernel Cross Reference sys/dev/vge/if_vgevar.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/vge/if_vgevar.h