LXR linux/drivers/scsi/fnic/vnic

   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