da44259fbf
This patch removes the #ident strings at the beginning of the source files. Signed-off-by: Sujith Sankar <ssujith@cisco.com>
114 lines
4.4 KiB
C
114 lines
4.4 KiB
C
/*
|
|
* Copyright 2008-2010 Cisco Systems, Inc. All rights reserved.
|
|
* Copyright 2007 Nuova Systems, Inc. All rights reserved.
|
|
*
|
|
* Copyright (c) 2014, Cisco Systems, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* 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 COPYRIGHT HOLDERS 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
|
|
* COPYRIGHT HOLDER 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 _WQ_ENET_DESC_H_
|
|
#define _WQ_ENET_DESC_H_
|
|
|
|
/* Ethernet work queue descriptor: 16B */
|
|
struct wq_enet_desc {
|
|
__le64 address;
|
|
__le16 length;
|
|
__le16 mss_loopback;
|
|
__le16 header_length_flags;
|
|
__le16 vlan_tag;
|
|
};
|
|
|
|
#define WQ_ENET_ADDR_BITS 64
|
|
#define WQ_ENET_LEN_BITS 14
|
|
#define WQ_ENET_LEN_MASK ((1 << WQ_ENET_LEN_BITS) - 1)
|
|
#define WQ_ENET_MSS_BITS 14
|
|
#define WQ_ENET_MSS_MASK ((1 << WQ_ENET_MSS_BITS) - 1)
|
|
#define WQ_ENET_MSS_SHIFT 2
|
|
#define WQ_ENET_LOOPBACK_SHIFT 1
|
|
#define WQ_ENET_HDRLEN_BITS 10
|
|
#define WQ_ENET_HDRLEN_MASK ((1 << WQ_ENET_HDRLEN_BITS) - 1)
|
|
#define WQ_ENET_FLAGS_OM_BITS 2
|
|
#define WQ_ENET_FLAGS_OM_MASK ((1 << WQ_ENET_FLAGS_OM_BITS) - 1)
|
|
#define WQ_ENET_FLAGS_EOP_SHIFT 12
|
|
#define WQ_ENET_FLAGS_CQ_ENTRY_SHIFT 13
|
|
#define WQ_ENET_FLAGS_FCOE_ENCAP_SHIFT 14
|
|
#define WQ_ENET_FLAGS_VLAN_TAG_INSERT_SHIFT 15
|
|
|
|
#define WQ_ENET_OFFLOAD_MODE_CSUM 0
|
|
#define WQ_ENET_OFFLOAD_MODE_RESERVED 1
|
|
#define WQ_ENET_OFFLOAD_MODE_CSUM_L4 2
|
|
#define WQ_ENET_OFFLOAD_MODE_TSO 3
|
|
|
|
static inline void wq_enet_desc_enc(struct wq_enet_desc *desc,
|
|
u64 address, u16 length, u16 mss, u16 header_length,
|
|
u8 offload_mode, u8 eop, u8 cq_entry, u8 fcoe_encap,
|
|
u8 vlan_tag_insert, u16 vlan_tag, u8 loopback)
|
|
{
|
|
desc->address = cpu_to_le64(address);
|
|
desc->length = cpu_to_le16(length & WQ_ENET_LEN_MASK);
|
|
desc->mss_loopback = cpu_to_le16((mss & WQ_ENET_MSS_MASK) <<
|
|
WQ_ENET_MSS_SHIFT | (loopback & 1) << WQ_ENET_LOOPBACK_SHIFT);
|
|
desc->header_length_flags = cpu_to_le16(
|
|
(header_length & WQ_ENET_HDRLEN_MASK) |
|
|
(offload_mode & WQ_ENET_FLAGS_OM_MASK) << WQ_ENET_HDRLEN_BITS |
|
|
(eop & 1) << WQ_ENET_FLAGS_EOP_SHIFT |
|
|
(cq_entry & 1) << WQ_ENET_FLAGS_CQ_ENTRY_SHIFT |
|
|
(fcoe_encap & 1) << WQ_ENET_FLAGS_FCOE_ENCAP_SHIFT |
|
|
(vlan_tag_insert & 1) << WQ_ENET_FLAGS_VLAN_TAG_INSERT_SHIFT);
|
|
desc->vlan_tag = cpu_to_le16(vlan_tag);
|
|
}
|
|
|
|
static inline void wq_enet_desc_dec(struct wq_enet_desc *desc,
|
|
u64 *address, u16 *length, u16 *mss, u16 *header_length,
|
|
u8 *offload_mode, u8 *eop, u8 *cq_entry, u8 *fcoe_encap,
|
|
u8 *vlan_tag_insert, u16 *vlan_tag, u8 *loopback)
|
|
{
|
|
*address = le64_to_cpu(desc->address);
|
|
*length = le16_to_cpu(desc->length) & WQ_ENET_LEN_MASK;
|
|
*mss = (le16_to_cpu(desc->mss_loopback) >> WQ_ENET_MSS_SHIFT) &
|
|
WQ_ENET_MSS_MASK;
|
|
*loopback = (u8)((le16_to_cpu(desc->mss_loopback) >>
|
|
WQ_ENET_LOOPBACK_SHIFT) & 1);
|
|
*header_length = le16_to_cpu(desc->header_length_flags) &
|
|
WQ_ENET_HDRLEN_MASK;
|
|
*offload_mode = (u8)((le16_to_cpu(desc->header_length_flags) >>
|
|
WQ_ENET_HDRLEN_BITS) & WQ_ENET_FLAGS_OM_MASK);
|
|
*eop = (u8)((le16_to_cpu(desc->header_length_flags) >>
|
|
WQ_ENET_FLAGS_EOP_SHIFT) & 1);
|
|
*cq_entry = (u8)((le16_to_cpu(desc->header_length_flags) >>
|
|
WQ_ENET_FLAGS_CQ_ENTRY_SHIFT) & 1);
|
|
*fcoe_encap = (u8)((le16_to_cpu(desc->header_length_flags) >>
|
|
WQ_ENET_FLAGS_FCOE_ENCAP_SHIFT) & 1);
|
|
*vlan_tag_insert = (u8)((le16_to_cpu(desc->header_length_flags) >>
|
|
WQ_ENET_FLAGS_VLAN_TAG_INSERT_SHIFT) & 1);
|
|
*vlan_tag = le16_to_cpu(desc->vlan_tag);
|
|
}
|
|
|
|
#endif /* _WQ_ENET_DESC_H_ */
|