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      1 /* $NetBSD: dwc_eqos_var.h,v 1.11 2024/10/04 10:42:12 skrll Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2022 Jared McNeill <jmcneill (at) invisible.ca>
      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 WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     22  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 /*
     30  * DesignWare Ethernet Quality-of-Service controller
     31  */
     32 
     33 #ifndef _DWC_EQOS_VAR_H
     34 #define _DWC_EQOS_VAR_H
     35 
     36 #include <dev/ic/dwc_eqos_reg.h>
     37 
     38 #define	EQOS_DMA_DESC_COUNT	256
     39 #define	EQOS_DMA_PBL_DEFAULT	8
     40 
     41 struct eqos_bufmap {
     42 	bus_dmamap_t		map;
     43 	struct mbuf		*mbuf;
     44 };
     45 
     46 struct eqos_ring {
     47 	struct eqos_softc	*sc;
     48 	bus_dmamap_t		desc_map;
     49 	bus_dma_segment_t	desc_dmaseg;
     50 	struct eqos_dma_desc	*desc_ring;
     51 	bus_addr_t		desc_ring_paddr;
     52 	struct eqos_bufmap	buf_map[EQOS_DMA_DESC_COUNT];
     53 	u_int			cur, next, queued;
     54 };
     55 
     56 struct eqos_softc {
     57 	device_t		sc_dev;
     58 	bus_space_tag_t		sc_bst;
     59 	bus_space_handle_t	sc_bsh;
     60 	bus_dma_tag_t		sc_dmat;
     61 	int			sc_phy_id;
     62 	uint32_t		sc_csr_clock;
     63 	uint32_t		sc_clock_range;
     64 	uint32_t		sc_hw_feature[4];
     65 	uint32_t		sc_dma_txpbl;
     66 	uint32_t		sc_dma_rxpbl;
     67 
     68 	struct ethercom		sc_ec;
     69 	struct mii_data		sc_mii;
     70 	callout_t		sc_stat_ch;
     71 	kmutex_t		sc_lock;
     72 	kmutex_t		sc_txlock;
     73 	u_short			sc_if_flags;
     74 	bool			sc_txrunning;
     75 
     76 	struct eqos_ring	sc_tx;
     77 	struct eqos_ring	sc_rx;
     78 
     79 	/* receiving context for jumbo frame */
     80 	bool			sc_rx_discarding;
     81 	struct mbuf		*sc_rx_receiving_m;
     82 	struct mbuf		*sc_rx_receiving_m_last;
     83 
     84 	krndsource_t		sc_rndsource;
     85 	struct sysctllog	*sc_sysctllog;
     86 	uint32_t		sc_debug;
     87 
     88 	/* Indents indicate groups within evcnt. */
     89 	struct evcnt		sc_ev_intr;
     90 	struct evcnt		 sc_ev_rxintr;
     91 	struct evcnt		 sc_ev_txintr;
     92 	struct evcnt		 sc_ev_mac;
     93 	struct evcnt		 sc_ev_mtl;
     94 	struct evcnt		  sc_ev_mtl_debugdata;
     95 	struct evcnt		  sc_ev_mtl_rxovfis;
     96 	struct evcnt		  sc_ev_mtl_txovfis;
     97 	struct evcnt		 sc_ev_status;
     98 	struct evcnt		  sc_ev_rwt;
     99 	struct evcnt		  sc_ev_excol;
    100 	struct evcnt		  sc_ev_lcol;
    101 	struct evcnt		  sc_ev_exdef;
    102 	struct evcnt		  sc_ev_lcarr;
    103 	struct evcnt		  sc_ev_ncarr;
    104 	struct evcnt		  sc_ev_tjt;
    105 };
    106 
    107 int	eqos_attach(struct eqos_softc *);
    108 int	eqos_intr(void *);
    109 
    110 #endif /* !_DWC_EQOS_VAR_H */
    111