xref: /netbsd-src/sys/dev/pci/ixgbe/ixgbe_netbsd.h (revision 6a493d6bc668897c91594964a732d38505b70cbb)
1 /*$NetBSD: ixgbe_netbsd.h,v 1.1 2011/08/12 21:55:29 dyoung 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	ETHERCAP_VLAN_HWFILTER	0
35 #define	ETHERCAP_VLAN_HWCSUM	0
36 #define	IFCAP_LRO		0
37 #define	MJUM9BYTES	(9 * 1024)
38 #define	MJUM16BYTES	(16 * 1024)
39 #define	MJUMPAGESIZE	PAGE_SIZE
40 
41 #define IFCAP_RXCSUM	\
42 	(IFCAP_CSUM_IPv4_Rx|IFCAP_CSUM_TCPv4_Rx|IFCAP_CSUM_UDPv4_Rx|\
43 	IFCAP_CSUM_TCPv6_Rx|IFCAP_CSUM_UDPv6_Rx)
44 
45 #define IFCAP_TXCSUM	\
46 	(IFCAP_CSUM_IPv4_Tx|IFCAP_CSUM_TCPv4_Tx|IFCAP_CSUM_UDPv4_Tx|\
47 	IFCAP_CSUM_TCPv6_Tx|IFCAP_CSUM_UDPv6_Tx)
48 
49 #define IFCAP_HWCSUM	(IFCAP_RXCSUM|IFCAP_TXCSUM)
50 
51 #define	ETHER_ALIGN		2
52 
53 struct ixgbe_dma_tag {
54 	bus_dma_tag_t	dt_dmat;
55 	bus_size_t	dt_alignment;
56 	bus_size_t	dt_boundary;
57 	bus_size_t	dt_maxsize;
58 	int		dt_nsegments;
59 	bus_size_t	dt_maxsegsize;
60 	int		dt_flags;
61 };
62 
63 typedef struct ixgbe_dma_tag ixgbe_dma_tag_t;
64 
65 struct ixgbe_extmem_head;
66 typedef struct ixgbe_extmem_head ixgbe_extmem_head_t;
67 
68 struct ixgbe_extmem {
69 	ixgbe_extmem_head_t		*em_head;
70 	bus_dma_tag_t			em_dmat;
71 	bus_size_t			em_size;
72 	bus_dma_segment_t		em_seg;
73 	void				*em_vaddr;
74 	TAILQ_ENTRY(ixgbe_extmem)	em_link;
75 };
76 
77 typedef struct ixgbe_extmem ixgbe_extmem_t;
78 
79 struct ixgbe_extmem_head {
80 	TAILQ_HEAD(, ixgbe_extmem)	eh_freelist;
81 	kmutex_t			eh_mtx;
82 	bool				eh_initialized;
83 };
84 
85 int ixgbe_dma_tag_create(bus_dma_tag_t, bus_size_t, bus_size_t, bus_size_t, int,
86     bus_size_t, int, ixgbe_dma_tag_t **);
87 void ixgbe_dma_tag_destroy(ixgbe_dma_tag_t *);
88 int ixgbe_dmamap_create(ixgbe_dma_tag_t *, int, bus_dmamap_t *);
89 void ixgbe_dmamap_destroy(ixgbe_dma_tag_t *, bus_dmamap_t);
90 void ixgbe_dmamap_sync(ixgbe_dma_tag_t *, bus_dmamap_t, int);
91 void ixgbe_dmamap_unload(ixgbe_dma_tag_t *, bus_dmamap_t);
92 
93 void ixgbe_jcl_reinit(ixgbe_extmem_head_t *, bus_dma_tag_t, int, size_t);
94 struct mbuf *ixgbe_getjcl(ixgbe_extmem_head_t *, int, int, int, size_t);
95 
96 #endif /* _IXGBE_NETBSD_H */
97