LXR linux/drivers/net/ethernet/cisco/enic/vnic

   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_ */
  73