/* $NetBSD: ixgbe_netbsd.h,v 1.17 2022/09/16 03:05:51 knakahara Exp $ */

/* $NetBSD: ixgbe_netbsd.h,v 1.17 2022/09/16 03:05:51 knakahara Exp $ */
/*
* Copyright (c) 2011 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Coyote Point Systems, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef _IXGBE_NETBSD_H
#define _IXGBE_NETBSD_H

#ifdef _KERNEL_OPT
#include "opt_if_ixg.h"
#endif

#if 0 /* Enable this if you don't want to use TX multiqueue function */
#define IXGBE_LEGACY_TX 1
#endif

#define ETHERCAP_VLAN_HWCSUM 0
#define MJUM9BYTES (9 * 1024)
#define MJUM16BYTES (16 * 1024)
#define MJUMPAGESIZE PAGE_SIZE

#define IFCAP_RXCSUM \
(IFCAP_CSUM_IPv4_Rx|IFCAP_CSUM_TCPv4_Rx|IFCAP_CSUM_UDPv4_Rx|\
IFCAP_CSUM_TCPv6_Rx|IFCAP_CSUM_UDPv6_Rx)

#define IFCAP_TXCSUM \
(IFCAP_CSUM_IPv4_Tx|IFCAP_CSUM_TCPv4_Tx|IFCAP_CSUM_UDPv4_Tx|\
IFCAP_CSUM_TCPv6_Tx|IFCAP_CSUM_UDPv6_Tx)

#define IFCAP_HWCSUM (IFCAP_RXCSUM|IFCAP_TXCSUM)

/* Helper macros for evcnt(9) .*/
#ifdef __HAVE_ATOMIC64_LOADSTORE
#define IXGBE_EVC_LOAD(evp) \
atomic_load_relaxed(&((evp)->ev_count))
#define IXGBE_EVC_STORE(evp, val) \
atomic_store_relaxed(&((evp)->ev_count), (val))
#define IXGBE_EVC_ADD(evp, val) \
atomic_store_relaxed(&((evp)->ev_count), \
atomic_load_relaxed(&((evp)->ev_count)) + (val))
#else
#define IXGBE_EVC_LOAD(evp) ((evp)->ev_count))
#define IXGBE_EVC_STORE(evp, val) ((evp)->ev_count = (val))
#define IXGBE_EVC_ADD(evp, val) ((evp)->ev_count += (val))
#endif

#define IXGBE_EVC_REGADD(hw, stats, regname, evname) \
IXGBE_EVC_ADD(&(stats)->evname, IXGBE_READ_REG((hw), (regname)))

/*
* Copy a register value to variable "evname" for later use.
* "evname" is also the name of the evcnt.
*/
#define IXGBE_EVC_REGADD2(hw, stats, regname, evname) \
do { \
(evname) = IXGBE_READ_REG((hw), (regname)); \
IXGBE_EVC_ADD(&(stats)->evname, (evname)); \
} while (/*CONSTCOND*/0)

struct ixgbe_dma_tag {
bus_dma_tag_t dt_dmat;
bus_size_t dt_alignment;
bus_size_t dt_boundary;
bus_size_t dt_maxsize;
int dt_nsegments;
bus_size_t dt_maxsegsize;
int dt_flags;
};

typedef struct ixgbe_dma_tag ixgbe_dma_tag_t;

int ixgbe_dma_tag_create(bus_dma_tag_t, bus_size_t, bus_size_t, bus_size_t,
int, bus_size_t, int, ixgbe_dma_tag_t **);
void ixgbe_dma_tag_destroy(ixgbe_dma_tag_t *);
int ixgbe_dmamap_create(ixgbe_dma_tag_t *, int, bus_dmamap_t *);
void ixgbe_dmamap_destroy(ixgbe_dma_tag_t *, bus_dmamap_t);
void ixgbe_dmamap_sync(ixgbe_dma_tag_t *, bus_dmamap_t, int);
void ixgbe_dmamap_unload(ixgbe_dma_tag_t *, bus_dmamap_t);

struct mbuf *ixgbe_getcl(void);
void ixgbe_pci_enable_busmaster(pci_chipset_tag_t, pcitag_t);

u_int atomic_load_acq_uint(volatile u_int *);

#endif /* _IXGBE_NETBSD_H */