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)
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_ */
73