1/*
 2 * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
 3 * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
 4 *
 5 * This program is free software; you may redistribute it and/or modify
 6 * it under the terms of the GNU General Public License as published by
 7 * the Free Software Foundation; version 2 of the License.
 8 *
 9 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
10 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
11 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
12 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
13 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
14 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
15 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
16 * SOFTWARE.
17 *
18 */
19
20#ifndef _VNIC_NIC_H_
21#define _VNIC_NIC_H_
22
23#define NIC_CFG_RSS_DEFAULT_CPU_MASK_FIELD	0xffUL
24#define NIC_CFG_RSS_DEFAULT_CPU_SHIFT		0
25#define NIC_CFG_RSS_HASH_TYPE			(0xffUL << 8)
26#define NIC_CFG_RSS_HASH_TYPE_MASK_FIELD	0xffUL
27#define NIC_CFG_RSS_HASH_TYPE_SHIFT		8
28#define NIC_CFG_RSS_HASH_BITS			(7UL << 16)
29#define NIC_CFG_RSS_HASH_BITS_MASK_FIELD	7UL
30#define NIC_CFG_RSS_HASH_BITS_SHIFT		16
31#define NIC_CFG_RSS_BASE_CPU			(7UL << 19)
32#define NIC_CFG_RSS_BASE_CPU_MASK_FIELD		7UL
33#define NIC_CFG_RSS_BASE_CPU_SHIFT		19
34#define NIC_CFG_RSS_ENABLE			(1UL << 22)
35#define NIC_CFG_RSS_ENABLE_MASK_FIELD		1UL
36#define NIC_CFG_RSS_ENABLE_SHIFT		22
37#define NIC_CFG_TSO_IPID_SPLIT_EN		(1UL << 23)
38#define NIC_CFG_TSO_IPID_SPLIT_EN_MASK_FIELD	1UL
39#define NIC_CFG_TSO_IPID_SPLIT_EN_SHIFT		23
40#define NIC_CFG_IG_VLAN_STRIP_EN		(1UL << 24)
41#define NIC_CFG_IG_VLAN_STRIP_EN_MASK_FIELD	1UL
42#define NIC_CFG_IG_VLAN_STRIP_EN_SHIFT		24
43
44#define NIC_CFG_RSS_HASH_TYPE_IPV4		(1 << 1)
45#define NIC_CFG_RSS_HASH_TYPE_TCP_IPV4		(1 << 2)
46#define NIC_CFG_RSS_HASH_TYPE_IPV6		(1 << 3)
47#define NIC_CFG_RSS_HASH_TYPE_TCP_IPV6		(1 << 4)
48#define NIC_CFG_RSS_HASH_TYPE_IPV6_EX		(1 << 5)
49#define NIC_CFG_RSS_HASH_TYPE_TCP_IPV6_EX	(1 << 6)
50
51static inline void vnic_set_nic_cfg(u32 *nic_cfg,
52	u8 rss_default_cpu, u8 rss_hash_type,
53	u8 rss_hash_bits, u8 rss_base_cpu,
54	u8 rss_enable, u8 tso_ipid_split_en,
55	u8 ig_vlan_strip_en)
56{
57	*nic_cfg = (rss_default_cpu & NIC_CFG_RSS_DEFAULT_CPU_MASK_FIELD) |
58		((rss_hash_type & NIC_CFG_RSS_HASH_TYPE_MASK_FIELD)
59			<< NIC_CFG_RSS_HASH_TYPE_SHIFT) |
60		((rss_hash_bits & NIC_CFG_RSS_HASH_BITS_MASK_FIELD)
61			<< NIC_CFG_RSS_HASH_BITS_SHIFT) |
62		((rss_base_cpu & NIC_CFG_RSS_BASE_CPU_MASK_FIELD)
63			<< NIC_CFG_RSS_BASE_CPU_SHIFT) |
64		((rss_enable & NIC_CFG_RSS_ENABLE_MASK_FIELD)
65			<< NIC_CFG_RSS_ENABLE_SHIFT) |
66		((tso_ipid_split_en & NIC_CFG_TSO_IPID_SPLIT_EN_MASK_FIELD)
67			<< NIC_CFG_TSO_IPID_SPLIT_EN_SHIFT) |
68		((ig_vlan_strip_en & NIC_CFG_IG_VLAN_STRIP_EN_MASK_FIELD)
69			<< NIC_CFG_IG_VLAN_STRIP_EN_SHIFT);
70}
71
72#endif /* _VNIC_NIC_H_ */