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ixgbe_netbsd.h revision 1.12 
      1 /*$NetBSD: ixgbe_netbsd.h,v 1.12 2021/03/09 10:03:18 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 #if 0 /* Enable this if you don't want to use TX multiqueue function */
     35 #define	IXGBE_LEGACY_TX	1
     36 #endif
     37 
     38 #define	ETHERCAP_VLAN_HWCSUM	0
     39 #define	MJUM9BYTES	(9 * 1024)
     40 #define	MJUM16BYTES	(16 * 1024)
     41 #define	MJUMPAGESIZE	PAGE_SIZE
     42 
     43 /*
     44  * Number of jcl per queue is calculated by
     45  * adapter->num_rx_desc * IXGBE_JCLNUM_MULTI. The lower limit is 2.
     46  */
     47 #define	IXGBE_JCLNUM_MULTI_LOWLIM	2
     48 #define	IXGBE_JCLNUM_MULTI_DEFAULT	3
     49 #if !defined(IXGBE_JCLNUM_MULTI)
     50 # define IXGBE_JCLNUM_MULTI IXGBE_JCLNUM_MULTI_DEFAULT
     51 #else
     52 # if (IXGBE_JCLNUM_MULTI < IXGBE_JCLNUM_MULTI_LOWLIM)
     53 #  error IXGBE_JCLNUM_MULTI is too low.
     54 # endif
     55 #endif
     56 
     57 #define IFCAP_RXCSUM	\
     58 	(IFCAP_CSUM_IPv4_Rx|IFCAP_CSUM_TCPv4_Rx|IFCAP_CSUM_UDPv4_Rx|\
     59 	IFCAP_CSUM_TCPv6_Rx|IFCAP_CSUM_UDPv6_Rx)
     60 
     61 #define IFCAP_TXCSUM	\
     62 	(IFCAP_CSUM_IPv4_Tx|IFCAP_CSUM_TCPv4_Tx|IFCAP_CSUM_UDPv4_Tx|\
     63 	IFCAP_CSUM_TCPv6_Tx|IFCAP_CSUM_UDPv6_Tx)
     64 
     65 #define IFCAP_HWCSUM	(IFCAP_RXCSUM|IFCAP_TXCSUM)
     66 
     67 struct ixgbe_dma_tag {
     68 	bus_dma_tag_t	dt_dmat;
     69 	bus_size_t	dt_alignment;
     70 	bus_size_t	dt_boundary;
     71 	bus_size_t	dt_maxsize;
     72 	int		dt_nsegments;
     73 	bus_size_t	dt_maxsegsize;
     74 	int		dt_flags;
     75 };
     76 
     77 typedef struct ixgbe_dma_tag ixgbe_dma_tag_t;
     78 
     79 struct ixgbe_extmem_head;
     80 typedef struct ixgbe_extmem_head ixgbe_extmem_head_t;
     81 
     82 struct ixgbe_extmem {
     83 	ixgbe_extmem_head_t		*em_head;
     84 	bus_dma_tag_t			em_dmat;
     85 	bus_size_t			em_size;
     86 	bus_dma_segment_t		em_seg;
     87 	void				*em_vaddr;
     88 	TAILQ_ENTRY(ixgbe_extmem)	em_link;
     89 };
     90 
     91 typedef struct ixgbe_extmem ixgbe_extmem_t;
     92 
     93 struct ixgbe_extmem_head {
     94 	TAILQ_HEAD(, ixgbe_extmem)	eh_freelist;
     95 	kmutex_t			eh_mtx;
     96 	bool				eh_initialized;
     97 };
     98 
     99 int ixgbe_dma_tag_create(bus_dma_tag_t, bus_size_t, bus_size_t, bus_size_t, int,
    100     bus_size_t, int, ixgbe_dma_tag_t **);
    101 void ixgbe_dma_tag_destroy(ixgbe_dma_tag_t *);
    102 int ixgbe_dmamap_create(ixgbe_dma_tag_t *, int, bus_dmamap_t *);
    103 void ixgbe_dmamap_destroy(ixgbe_dma_tag_t *, bus_dmamap_t);
    104 void ixgbe_dmamap_sync(ixgbe_dma_tag_t *, bus_dmamap_t, int);
    105 void ixgbe_dmamap_unload(ixgbe_dma_tag_t *, bus_dmamap_t);
    106 
    107 struct mbuf *ixgbe_getjcl(ixgbe_extmem_head_t *, int, int, int, size_t);
    108 void ixgbe_pci_enable_busmaster(pci_chipset_tag_t, pcitag_t);
    109 
    110 u_int atomic_load_acq_uint(volatile u_int *);
    111 
    112 #endif /* _IXGBE_NETBSD_H */
    113