1/*
2 * Copyright 2008 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#ifndef _VNIC_NIC_H_
19#define _VNIC_NIC_H_
20
21/*
22 * These defines avoid symbol clash between fnic and enic (Cisco 10G Eth
23 * Driver) when both are built with CONFIG options =y
24 */
25#define vnic_set_nic_cfg fnic_set_nic_cfg
26
27#define NIC_CFG_RSS_DEFAULT_CPU_MASK_FIELD	0xffUL
28#define NIC_CFG_RSS_DEFAULT_CPU_SHIFT		0
29#define NIC_CFG_RSS_HASH_TYPE			(0xffUL << 8)
30#define NIC_CFG_RSS_HASH_TYPE_MASK_FIELD	0xffUL
31#define NIC_CFG_RSS_HASH_TYPE_SHIFT		8
32#define NIC_CFG_RSS_HASH_BITS			(7UL << 16)
33#define NIC_CFG_RSS_HASH_BITS_MASK_FIELD	7UL
34#define NIC_CFG_RSS_HASH_BITS_SHIFT		16
35#define NIC_CFG_RSS_BASE_CPU			(7UL << 19)
36#define NIC_CFG_RSS_BASE_CPU_MASK_FIELD		7UL
37#define NIC_CFG_RSS_BASE_CPU_SHIFT		19
38#define NIC_CFG_RSS_ENABLE			(1UL << 22)
39#define NIC_CFG_RSS_ENABLE_MASK_FIELD		1UL
40#define NIC_CFG_RSS_ENABLE_SHIFT		22
41#define NIC_CFG_TSO_IPID_SPLIT_EN		(1UL << 23)
42#define NIC_CFG_TSO_IPID_SPLIT_EN_MASK_FIELD	1UL
43#define NIC_CFG_TSO_IPID_SPLIT_EN_SHIFT		23
44#define NIC_CFG_IG_VLAN_STRIP_EN		(1UL << 24)
45#define NIC_CFG_IG_VLAN_STRIP_EN_MASK_FIELD	1UL
46#define NIC_CFG_IG_VLAN_STRIP_EN_SHIFT		24
47
48static inline void vnic_set_nic_cfg(u32 *nic_cfg,
49	u8 rss_default_cpu, u8 rss_hash_type,
50	u8 rss_hash_bits, u8 rss_base_cpu,
51	u8 rss_enable, u8 tso_ipid_split_en,
52	u8 ig_vlan_strip_en)
53{
54	*nic_cfg = (rss_default_cpu & NIC_CFG_RSS_DEFAULT_CPU_MASK_FIELD) |
55		((rss_hash_type & NIC_CFG_RSS_HASH_TYPE_MASK_FIELD)
56			<< NIC_CFG_RSS_HASH_TYPE_SHIFT) |
57		((rss_hash_bits & NIC_CFG_RSS_HASH_BITS_MASK_FIELD)
58			<< NIC_CFG_RSS_HASH_BITS_SHIFT) |
59		((rss_base_cpu & NIC_CFG_RSS_BASE_CPU_MASK_FIELD)
60			<< NIC_CFG_RSS_BASE_CPU_SHIFT) |
61		((rss_enable & NIC_CFG_RSS_ENABLE_MASK_FIELD)
62			<< NIC_CFG_RSS_ENABLE_SHIFT) |
63		((tso_ipid_split_en & NIC_CFG_TSO_IPID_SPLIT_EN_MASK_FIELD)
64			<< NIC_CFG_TSO_IPID_SPLIT_EN_SHIFT) |
65		((ig_vlan_strip_en & NIC_CFG_IG_VLAN_STRIP_EN_MASK_FIELD)
66			<< NIC_CFG_IG_VLAN_STRIP_EN_SHIFT);
67}
68
69#endif /* _VNIC_NIC_H_ */
70