1 /*$NetBSD: ixgbe_netbsd.h,v 1.3 2015/04/24 07:00:51 msaitoh Exp $*/
2 /*
3  * Copyright (c) 2011 The NetBSD Foundation, Inc.
4  * All rights reserved.
5  *
6  * This code is derived from software contributed to The NetBSD Foundation
7  * by Coyote Point Systems, Inc.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28  * POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #ifndef _IXGBE_NETBSD_H
32 #define _IXGBE_NETBSD_H
33 
34 #define	IXGBE_LEGACY_TX	1
35 
36 #define	ETHERCAP_VLAN_HWFILTER	0
37 #define	ETHERCAP_VLAN_HWCSUM	0
38 #define	MJUM9BYTES	(9 * 1024)
39 #define	MJUM16BYTES	(16 * 1024)
40 #define	MJUMPAGESIZE	PAGE_SIZE
41 
42 #define IFCAP_RXCSUM	\
43 	(IFCAP_CSUM_IPv4_Rx|IFCAP_CSUM_TCPv4_Rx|IFCAP_CSUM_UDPv4_Rx|\
44 	IFCAP_CSUM_TCPv6_Rx|IFCAP_CSUM_UDPv6_Rx)
45 
46 #define IFCAP_TXCSUM	\
47 	(IFCAP_CSUM_IPv4_Tx|IFCAP_CSUM_TCPv4_Tx|IFCAP_CSUM_UDPv4_Tx|\
48 	IFCAP_CSUM_TCPv6_Tx|IFCAP_CSUM_UDPv6_Tx)
49 
50 #define IFCAP_HWCSUM	(IFCAP_RXCSUM|IFCAP_TXCSUM)
51 
52 #define	ETHER_ALIGN		2
53 
54 struct ixgbe_dma_tag {
55 	bus_dma_tag_t	dt_dmat;
56 	bus_size_t	dt_alignment;
57 	bus_size_t	dt_boundary;
58 	bus_size_t	dt_maxsize;
59 	int		dt_nsegments;
60 	bus_size_t	dt_maxsegsize;
61 	int		dt_flags;
62 };
63 
64 typedef struct ixgbe_dma_tag ixgbe_dma_tag_t;
65 
66 struct ixgbe_extmem_head;
67 typedef struct ixgbe_extmem_head ixgbe_extmem_head_t;
68 
69 struct ixgbe_extmem {
70 	ixgbe_extmem_head_t		*em_head;
71 	bus_dma_tag_t			em_dmat;
72 	bus_size_t			em_size;
73 	bus_dma_segment_t		em_seg;
74 	void				*em_vaddr;
75 	TAILQ_ENTRY(ixgbe_extmem)	em_link;
76 };
77 
78 typedef struct ixgbe_extmem ixgbe_extmem_t;
79 
80 struct ixgbe_extmem_head {
81 	TAILQ_HEAD(, ixgbe_extmem)	eh_freelist;
82 	kmutex_t			eh_mtx;
83 	bool				eh_initialized;
84 };
85 
86 int ixgbe_dma_tag_create(bus_dma_tag_t, bus_size_t, bus_size_t, bus_size_t, int,
87     bus_size_t, int, ixgbe_dma_tag_t **);
88 void ixgbe_dma_tag_destroy(ixgbe_dma_tag_t *);
89 int ixgbe_dmamap_create(ixgbe_dma_tag_t *, int, bus_dmamap_t *);
90 void ixgbe_dmamap_destroy(ixgbe_dma_tag_t *, bus_dmamap_t);
91 void ixgbe_dmamap_sync(ixgbe_dma_tag_t *, bus_dmamap_t, int);
92 void ixgbe_dmamap_unload(ixgbe_dma_tag_t *, bus_dmamap_t);
93 
94 void ixgbe_jcl_reinit(ixgbe_extmem_head_t *, bus_dma_tag_t, int, size_t);
95 struct mbuf *ixgbe_getjcl(ixgbe_extmem_head_t *, int, int, int, size_t);
96 
97 #endif /* _IXGBE_NETBSD_H */
98