diff options
Diffstat (limited to 'bsps/powerpc/mvme5500/include/bsp/GT64260eth.h')
| -rw-r--r-- | bsps/powerpc/mvme5500/include/bsp/GT64260eth.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/bsps/powerpc/mvme5500/include/bsp/GT64260eth.h b/bsps/powerpc/mvme5500/include/bsp/GT64260eth.h new file mode 100644 index 0000000000..2703bb423e --- /dev/null +++ b/bsps/powerpc/mvme5500/include/bsp/GT64260eth.h @@ -0,0 +1,140 @@ +/* GT64260eth.h + * + * Copyright (c) 2002 Allegro Networks, Inc., Wasabi Systems, Inc. + * All rights reserved. + * + * RTEMS/Mvme5500 port 2004 by S. Kate Feng, <feng1@bnl.gov>, + * 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed for the NetBSD Project by + * Allegro Networks, Inc., and Wasabi Systems, Inc. + * 4. The name of Allegro Networks, Inc. may not be used to endorse + * or promote products derived from this software without specific prior + * written permission. + * 5. The name of Wasabi Systems, Inc. may not be used to endorse + * or promote products derived from this software without specific prior + * written permission. + * + * THIS SOFTWARE IS PROVIDED BY ALLEGRO NETWORKS, INC. AND + * WASABI SYSTEMS, INC. ``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 EITHER ALLEGRO NETWORKS, INC. OR WASABI SYSTEMS, INC. + * 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. + */ + +/* Keep the ring sizes a power of two for efficiency. + Making the Tx ring too long decreases the effectiveness of channel + bonding and packet priority. + There are no ill effects from too-large receive rings. */ +#define TX_RING_SIZE 32 +#define GT_NEXTTX(x) ((x + 1) % TX_RING_SIZE ) +#define TX_QUARTER_FULL TX_RING_SIZE/2 +#define TX_HALF_FULL TX_RING_SIZE/2 +#define RX_RING_SIZE 16 +#define HASH_TABLE_SIZE 16 +#define HASH_DRAM_SIZE HASH_TABLE_SIZE*1024 /* size of DRAM for hash table */ +#define INTR_ERR_SIZE 16 + +enum GTeth_txprio { + GE_TXPRIO_HI=1, + GE_TXPRIO_LO=0, + GE_TXPRIO_NONE=2 +}; +enum GTeth_rxprio { + GE_RXPRIO_HI=3, + GE_RXPRIO_MEDHI=2, + GE_RXPRIO_MEDLO=1, + GE_RXPRIO_LO=0 +}; + +struct GTeth_softc { + struct GTeth_desc txq_desc[TX_RING_SIZE]; /* transmit descriptor memory */ + struct GTeth_desc rxq_desc[RX_RING_SIZE]; /* receive descriptor memory */ + struct mbuf* txq_mbuf[TX_RING_SIZE]; /* transmit buffer memory */ + struct mbuf* rxq_mbuf[RX_RING_SIZE]; /* receive buffer memory */ + struct GTeth_softc *next_module; + volatile unsigned int intr_errsts[INTR_ERR_SIZE]; /* capture the right intr_status */ + unsigned int intr_err_ptr1; /* ptr used in GTeth_error() */ + unsigned int intr_err_ptr2; /* ptr used in ISR */ + struct ifqueue txq_pendq; /* these are ready to go to the GT */ + unsigned int txq_pending; + unsigned int txq_lo; /* next to be given to GT DMA */ + unsigned int txq_fi; /* next to be free */ + unsigned int txq_to_cpu; /* next to be returned to CPU */ + unsigned int txq_ei_gapcount; /* counter until next EI */ + unsigned int txq_nactive; /* number of active descriptors */ + unsigned int txq_nintr; /* number of txq desc. send TX_EVENT */ + unsigned int txq_outptr; /* where to put next transmit packet */ + unsigned int txq_inptr; /* start of 1st queued tx packet */ + unsigned int txq_free; /* free Tx queue slots. */ + unsigned txq_intrbits; /* bits to write to EIMR */ + unsigned txq_esdcmrbits; /* bits to write to ESDCMR */ + unsigned txq_epsrbits; /* bits to test with EPSR */ + + caddr_t txq_ectdp; /* offset to cur. tx desc ptr reg */ + unsigned long txq_desc_busaddr; /* bus addr of tx descriptors */ + caddr_t txq_buf_busaddr; /* bus addr of tx buffers */ + + struct mbuf *rxq_curpkt; /* mbuf for current packet */ + struct GTeth_desc *rxq_head_desc; /* rxq head descriptor */ + unsigned int rxq_fi; /* next to be returned to CPU */ + unsigned int rxq_active; /* # of descriptors given to GT */ + unsigned rxq_intrbits; /* bits to write to EIMR */ + unsigned long rxq_desc_busaddr; /* bus addr of rx descriptors */ + + struct arpcom arpcom; /* rtems if structure, contains ifnet */ + int sc_macno; /* which mac? 0, 1, or 2 */ + + unsigned int sc_tickflags; + #define GE_TICK_TX_IFSTART 0x0001 + #define GE_TICK_RX_RESTART 0x0002 + unsigned int sc_flags; + #define GE_ALLMULTI 0x0001 + #define GE_PHYSTSCHG 0x0002 + #define GE_RXACTIVE 0x0004 + unsigned sc_pcr; /* current EPCR value */ + unsigned sc_pcxr; /* current EPCXR value */ + unsigned sc_intrmask; /* current EIMR value */ + unsigned sc_idlemask; /* suspended EIMR bits */ + unsigned sc_max_frame_length; /* maximum frame length */ + unsigned rx_buf_sz; + + /* Hash table related members */ + unsigned long long *sc_hashtable; + unsigned int sc_hashmask; /* 0x1ff or 0x1fff */ + + rtems_id daemonTid; + rtems_id daemonSync; /* synchronization with the daemon */ + /* statistics */ + struct { + volatile unsigned long rxInterrupts; + + volatile unsigned long txInterrupts; + unsigned long txMultiBuffPacket; + unsigned long txMultiMaxLen; + unsigned long txSinglMaxLen; + unsigned long txMultiMaxLoop; + unsigned long txBuffMaxLen; + unsigned long length_errors; + unsigned long frame_errors; + unsigned long crc_errors; + unsigned long or_errors; /* overrun error */ + } stats; +}; |