/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright 2008-2017 Cisco Systems, Inc.  All rights reserved.
 * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
 */

#ifndef _VNIC_ENIC_H_
#define _VNIC_ENIC_H_

/* Hardware intr coalesce timer is in units of 1.5us */
#define INTR_COALESCE_USEC_TO_HW(usec) ((usec) * 2 / 3)
#define INTR_COALESCE_HW_TO_USEC(usec) ((usec) * 3 / 2)

/* Device-specific region: enet configuration */
struct vnic_enet_config {
        u32 flags;
        u32 wq_desc_count;
        u32 rq_desc_count;
        u16 mtu;
        u16 intr_timer_deprecated;
        u8 intr_timer_type;
        u8 intr_mode;
        char devname[16];
        u32 intr_timer_usec;
        u16 loop_tag;
        u16 vf_rq_count;
        u16 num_arfs;
        u64 mem_paddr;
        u16 rdma_qp_id;
        u16 rdma_qp_count;
        u16 rdma_resgrp;
        u32 rdma_mr_id;
        u32 rdma_mr_count;
        u32 max_pkt_size;
};

#define VENETF_TSO              0x1     /* TSO enabled */
#define VENETF_LRO              0x2     /* LRO enabled */
#define VENETF_RXCSUM           0x4     /* RX csum enabled */
#define VENETF_TXCSUM           0x8     /* TX csum enabled */
#define VENETF_RSS              0x10    /* RSS enabled */
#define VENETF_RSSHASH_IPV4     0x20    /* Hash on IPv4 fields */
#define VENETF_RSSHASH_TCPIPV4  0x40    /* Hash on TCP + IPv4 fields */
#define VENETF_RSSHASH_IPV6     0x80    /* Hash on IPv6 fields */
#define VENETF_RSSHASH_TCPIPV6  0x100   /* Hash on TCP + IPv6 fields */
#define VENETF_RSSHASH_IPV6_EX  0x200   /* Hash on IPv6 extended fields */
#define VENETF_RSSHASH_TCPIPV6_EX 0x400 /* Hash on TCP + IPv6 ext. fields */
#define VENETF_LOOP             0x800   /* Loopback enabled */
#define VENETF_FAILOVER         0x1000  /* Fabric failover enabled */
#define VENETF_USPACE_NIC       0x2000  /* vHPC enabled */
#define VENETF_VMQ      0x4000 /* VMQ enabled */
#define VENETF_ARFS             0x8000  /* ARFS enabled */
#define VENETF_VXLAN    0x10000 /* VxLAN offload */
#define VENETF_NVGRE    0x20000 /* NVGRE offload */
#define VENETF_GRPINTR  0x40000 /* group interrupt */
#define VENETF_NICSWITCH        0x80000 /* NICSWITCH enabled */
#define VENETF_RSSHASH_UDPIPV4  0x100000 /* Hash on UDP + IPv4 fields */
#define VENETF_RSSHASH_UDPIPV6  0x200000 /* Hash on UDP + IPv6 fields */

#define VENET_INTR_TYPE_MIN     0       /* Timer specs min interrupt spacing */
#define VENET_INTR_TYPE_IDLE    1       /* Timer specs idle time before irq */

#define VENET_INTR_MODE_ANY     0       /* Try MSI-X, then MSI, then INTx */
#define VENET_INTR_MODE_MSI     1       /* Try MSI then INTx */
#define VENET_INTR_MODE_INTX    2       /* Try INTx only */

#endif /* _VNIC_ENIC_H_ */