if_argevar.h revision 198970 
1/*-
2 * Copyright (c) 2009, Oleksandr Tymoshenko
3 * 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 unmodified, this list of conditions, and the following
10 *    disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#ifndef __IF_ARGEVAR_H__
29#define __IF_ARGEVAR_H__
30
31#define	ARGE_TX_RING_COUNT	128
32#define	ARGE_RX_RING_COUNT	128
33#define	ARGE_RX_DMA_SIZE	ARGE_RX_RING_COUNT * sizeof(struct arge_desc)
34#define	ARGE_TX_DMA_SIZE	ARGE_TX_RING_COUNT * sizeof(struct arge_desc)
35#define	ARGE_MAXFRAGS		8
36#define ARGE_RING_ALIGN		sizeof(struct arge_desc)
37#define ARGE_RX_ALIGN		sizeof(uint32_t)
38#define ARGE_MAXFRAGS		8
39#define	ARGE_TX_RING_ADDR(sc, i)	\
40    ((sc)->arge_rdata.arge_tx_ring_paddr + sizeof(struct arge_desc) * (i))
41#define	ARGE_RX_RING_ADDR(sc, i)	\
42    ((sc)->arge_rdata.arge_rx_ring_paddr + sizeof(struct arge_desc) * (i))
43#define	ARGE_INC(x,y)		(x) = (((x) + 1) % y)
44
45
46#define	ARGE_MII_TIMEOUT	1000
47
48#define	ARGE_LOCK(_sc)		mtx_lock(&(_sc)->arge_mtx)
49#define	ARGE_UNLOCK(_sc)	mtx_unlock(&(_sc)->arge_mtx)
50#define	ARGE_LOCK_ASSERT(_sc)	mtx_assert(&(_sc)->arge_mtx, MA_OWNED)
51
52/*
53 * register space access macros
54 */
55#define ARGE_WRITE(sc, reg, val)	do {	\
56		bus_write_4(sc->arge_res, (reg), (val)); \
57	} while (0)
58
59#define ARGE_READ(sc, reg)	 bus_read_4(sc->arge_res, (reg))
60
61#define ARGE_SET_BITS(sc, reg, bits)	\
62	ARGE_WRITE(sc, reg, ARGE_READ(sc, (reg)) | (bits))
63
64#define ARGE_CLEAR_BITS(sc, reg, bits)	\
65	ARGE_WRITE(sc, reg, ARGE_READ(sc, (reg)) & ~(bits))
66
67#define ARGE_DESC_EMPTY		(1 << 31)
68#define ARGE_DESC_MORE		(1 << 24)
69#define ARGE_DESC_SIZE_MASK	((1 << 12) - 1)
70#define	ARGE_DMASIZE(len)	((len) & ARGE_DESC_SIZE_MASK)
71struct arge_desc {
72	uint32_t	packet_addr;
73	uint32_t	packet_ctrl;
74	uint32_t	next_desc;
75	uint32_t	padding;
76};
77
78struct arge_txdesc {
79	struct mbuf	*tx_m;
80	bus_dmamap_t	tx_dmamap;
81};
82
83struct arge_rxdesc {
84	struct mbuf		*rx_m;
85	bus_dmamap_t		rx_dmamap;
86	struct arge_desc	*desc;
87};
88
89struct arge_chain_data {
90	bus_dma_tag_t		arge_parent_tag;
91	bus_dma_tag_t		arge_tx_tag;
92	struct arge_txdesc	arge_txdesc[ARGE_TX_RING_COUNT];
93	bus_dma_tag_t		arge_rx_tag;
94	struct arge_rxdesc	arge_rxdesc[ARGE_RX_RING_COUNT];
95	bus_dma_tag_t		arge_tx_ring_tag;
96	bus_dma_tag_t		arge_rx_ring_tag;
97	bus_dmamap_t		arge_tx_ring_map;
98	bus_dmamap_t		arge_rx_ring_map;
99	bus_dmamap_t		arge_rx_sparemap;
100	int			arge_tx_pkts;
101	int			arge_tx_prod;
102	int			arge_tx_cons;
103	int			arge_tx_cnt;
104	int			arge_rx_cons;
105};
106
107struct arge_ring_data {
108	struct arge_desc	*arge_rx_ring;
109	struct arge_desc	*arge_tx_ring;
110	bus_addr_t		arge_rx_ring_paddr;
111	bus_addr_t		arge_tx_ring_paddr;
112};
113
114struct arge_softc {
115	struct ifnet		*arge_ifp;	/* interface info */
116	device_t		arge_dev;
117	struct resource		*arge_res;
118	int			arge_rid;
119	struct resource		*arge_irq;
120	void			*arge_intrhand;
121	device_t		arge_miibus;
122	bus_dma_tag_t		arge_parent_tag;
123	bus_dma_tag_t		arge_tag;
124	struct mtx		arge_mtx;
125	struct callout		arge_stat_callout;
126	struct task		arge_link_task;
127	struct arge_chain_data	arge_cdata;
128	struct arge_ring_data	arge_rdata;
129	int			arge_link_status;
130	int			arge_detach;
131	uint32_t		arge_intr_status;
132	int			arge_mac_unit;
133	int			arge_phy_num;
134	uint32_t		arge_ddr_flush_reg;
135	uint32_t		arge_pll_reg;
136	uint32_t		arge_pll_reg_shift;
137	int			arge_if_flags;
138};
139
140#endif /* __IF_ARGEVAR_H__ */
141