drivers/net/ethernet/cisco/enic/vnic_nic.h

   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_UDP_IPV4          (1 << 0)
  45 #define NIC_CFG_RSS_HASH_TYPE_IPV4              (1 << 1)
  46 #define NIC_CFG_RSS_HASH_TYPE_TCP_IPV4          (1 << 2)
  47 #define NIC_CFG_RSS_HASH_TYPE_IPV6              (1 << 3)
  48 #define NIC_CFG_RSS_HASH_TYPE_TCP_IPV6          (1 << 4)
  49 #define NIC_CFG_RSS_HASH_TYPE_IPV6_EX           (1 << 5)
  50 #define NIC_CFG_RSS_HASH_TYPE_TCP_IPV6_EX       (1 << 6)
  51 #define NIC_CFG_RSS_HASH_TYPE_UDP_IPV6          (1 << 7)
  52
  53 static inline void vnic_set_nic_cfg(u32 *nic_cfg,
  54         u8 rss_default_cpu, u8 rss_hash_type,
  55         u8 rss_hash_bits, u8 rss_base_cpu,
  56         u8 rss_enable, u8 tso_ipid_split_en,
  57         u8 ig_vlan_strip_en)
  58 {
  59         *nic_cfg = (rss_default_cpu & NIC_CFG_RSS_DEFAULT_CPU_MASK_FIELD) |
  60                 ((rss_hash_type & NIC_CFG_RSS_HASH_TYPE_MASK_FIELD)
  61                         << NIC_CFG_RSS_HASH_TYPE_SHIFT) |
  62                 ((rss_hash_bits & NIC_CFG_RSS_HASH_BITS_MASK_FIELD)
  63                         << NIC_CFG_RSS_HASH_BITS_SHIFT) |
  64                 ((rss_base_cpu & NIC_CFG_RSS_BASE_CPU_MASK_FIELD)
  65                         << NIC_CFG_RSS_BASE_CPU_SHIFT) |
  66                 ((rss_enable & NIC_CFG_RSS_ENABLE_MASK_FIELD)
  67                         << NIC_CFG_RSS_ENABLE_SHIFT) |
  68                 ((tso_ipid_split_en & NIC_CFG_TSO_IPID_SPLIT_EN_MASK_FIELD)
  69                         << NIC_CFG_TSO_IPID_SPLIT_EN_SHIFT) |
  70                 ((ig_vlan_strip_en & NIC_CFG_IG_VLAN_STRIP_EN_MASK_FIELD)
  71                         << NIC_CFG_IG_VLAN_STRIP_EN_SHIFT);
  72 }
  73
  74 #endif /* _VNIC_NIC_H_ */