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      1 /*	$NetBSD: if_enetvar.h,v 1.9 2024/02/07 04:20:26 msaitoh Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2014 Ryo Shimizu
      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  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     18  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     19  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
     20  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     21  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     22  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     24  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
     25  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _ARM_IMX_IF_ENETVAR_H_
     30 #define _ARM_IMX_IF_ENETVAR_H_
     31 
     32 #include <sys/rndsource.h>
     33 #include <net/if.h>
     34 #include <net/if_media.h>
     35 #include <net/if_ether.h>
     36 #include <dev/mii/miivar.h>
     37 
     38 #define ENET_TX_RING_CNT	256
     39 #define ENET_RX_RING_CNT	256
     40 
     41 struct enet_txsoft {
     42 	struct mbuf *txs_mbuf;		/* head of our mbuf chain */
     43 	bus_dmamap_t txs_dmamap;	/* our DMA map */
     44 };
     45 
     46 struct enet_rxsoft {
     47 	struct mbuf *rxs_mbuf;		/* head of our mbuf chain */
     48 	bus_dmamap_t rxs_dmamap;	/* our DMA map */
     49 };
     50 
     51 struct enet_softc {
     52 	device_t sc_dev;
     53 
     54 	bus_space_tag_t sc_iot;
     55 	bus_space_handle_t sc_ioh;
     56 	bus_dma_tag_t sc_dmat;
     57 
     58 	int sc_unit;
     59 	int sc_imxtype;
     60 	int sc_rgmii;
     61 	int sc_phyid;
     62 	unsigned int sc_clock;
     63 
     64 	struct clk *sc_clk_ipg;
     65 	struct clk *sc_clk_enet;
     66 	struct clk *sc_clk_enet_ref;
     67 
     68 	/* interrupts */
     69 	void *sc_ih;
     70 	void *sc_ih2;	/* for i.MX7 */
     71 	void *sc_ih3;	/* for i.MX7 */
     72 	callout_t sc_tick_ch;
     73 	bool sc_stopping;
     74 
     75 	/* TX */
     76 	struct enet_txdesc *sc_txdesc_ring;	/* [ENET_TX_RING_CNT] */
     77 	bus_dmamap_t sc_txdesc_dmamap;
     78 	struct enet_rxdesc *sc_rxdesc_ring;	/* [ENET_RX_RING_CNT] */
     79 	bus_dmamap_t sc_rxdesc_dmamap;
     80 	struct enet_txsoft sc_txsoft[ENET_TX_RING_CNT];
     81 	int sc_tx_considx;
     82 	int sc_tx_prodidx;
     83 	int sc_tx_free;
     84 	bool sc_txbusy;
     85 
     86 	/* RX */
     87 	struct enet_rxsoft sc_rxsoft[ENET_RX_RING_CNT];
     88 	int sc_rx_readidx;
     89 
     90 	/* misc */
     91 	u_short sc_if_flags;			/* local copy of if_flags */
     92 	int sc_flowflags;			/* 802.3x flow control flags */
     93 	struct ethercom sc_ethercom;		/* interface info */
     94 	struct mii_data sc_mii;
     95 	uint8_t sc_enaddr[ETHER_ADDR_LEN];
     96 	krndsource_t sc_rnd_source;
     97 
     98 #ifdef ENET_EVENT_COUNTER
     99 	struct evcnt sc_ev_t_drop;
    100 	struct evcnt sc_ev_t_packets;
    101 	struct evcnt sc_ev_t_bc_pkt;
    102 	struct evcnt sc_ev_t_mc_pkt;
    103 	struct evcnt sc_ev_t_crc_align;
    104 	struct evcnt sc_ev_t_undersize;
    105 	struct evcnt sc_ev_t_oversize;
    106 	struct evcnt sc_ev_t_frag;
    107 	struct evcnt sc_ev_t_jab;
    108 	struct evcnt sc_ev_t_col;
    109 	struct evcnt sc_ev_t_p64;
    110 	struct evcnt sc_ev_t_p65to127n;
    111 	struct evcnt sc_ev_t_p128to255n;
    112 	struct evcnt sc_ev_t_p256to511;
    113 	struct evcnt sc_ev_t_p512to1023;
    114 	struct evcnt sc_ev_t_p1024to2047;
    115 	struct evcnt sc_ev_t_p_gte2048;
    116 	struct evcnt sc_ev_t_octets;
    117 	struct evcnt sc_ev_r_packets;
    118 	struct evcnt sc_ev_r_bc_pkt;
    119 	struct evcnt sc_ev_r_mc_pkt;
    120 	struct evcnt sc_ev_r_crc_align;
    121 	struct evcnt sc_ev_r_undersize;
    122 	struct evcnt sc_ev_r_oversize;
    123 	struct evcnt sc_ev_r_frag;
    124 	struct evcnt sc_ev_r_jab;
    125 	struct evcnt sc_ev_r_p64;
    126 	struct evcnt sc_ev_r_p65to127;
    127 	struct evcnt sc_ev_r_p128to255;
    128 	struct evcnt sc_ev_r_p256to511;
    129 	struct evcnt sc_ev_r_p512to1023;
    130 	struct evcnt sc_ev_r_p1024to2047;
    131 	struct evcnt sc_ev_r_p_gte2048;
    132 	struct evcnt sc_ev_r_octets;
    133 #endif /* ENET_EVENT_COUNTER */
    134 };
    135 
    136 int enet_attach_common(device_t);
    137 int enet_match(device_t, cfdata_t, void *);
    138 void enet_attach(device_t, device_t, void *);
    139 
    140 int enet_intr(void *);
    141 
    142 #endif /* _ARM_IMX_IF_ENETVAR_H_ */
    143