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vnic_nic.h
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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 
51 static 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)
60  ((rss_hash_bits & NIC_CFG_RSS_HASH_BITS_MASK_FIELD)
62  ((rss_base_cpu & NIC_CFG_RSS_BASE_CPU_MASK_FIELD)
64  ((rss_enable & NIC_CFG_RSS_ENABLE_MASK_FIELD)
66  ((tso_ipid_split_en & NIC_CFG_TSO_IPID_SPLIT_EN_MASK_FIELD)
68  ((ig_vlan_strip_en & NIC_CFG_IG_VLAN_STRIP_EN_MASK_FIELD)
70 }
71 
72 #endif /* _VNIC_NIC_H_ */