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kernel/linux-rt-4.4.41/drivers/scsi/fnic/vnic_nic.h 2.69 KB
5113f6f70   김현기   kernel add
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  /*
   * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
   * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
   *
   * This program is free software; you may redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; version 2 of the License.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
   * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
   * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  #ifndef _VNIC_NIC_H_
  #define _VNIC_NIC_H_
  
  /*
   * These defines avoid symbol clash between fnic and enic (Cisco 10G Eth
   * Driver) when both are built with CONFIG options =y
   */
  #define vnic_set_nic_cfg fnic_set_nic_cfg
  
  #define NIC_CFG_RSS_DEFAULT_CPU_MASK_FIELD	0xffUL
  #define NIC_CFG_RSS_DEFAULT_CPU_SHIFT		0
  #define NIC_CFG_RSS_HASH_TYPE			(0xffUL << 8)
  #define NIC_CFG_RSS_HASH_TYPE_MASK_FIELD	0xffUL
  #define NIC_CFG_RSS_HASH_TYPE_SHIFT		8
  #define NIC_CFG_RSS_HASH_BITS			(7UL << 16)
  #define NIC_CFG_RSS_HASH_BITS_MASK_FIELD	7UL
  #define NIC_CFG_RSS_HASH_BITS_SHIFT		16
  #define NIC_CFG_RSS_BASE_CPU			(7UL << 19)
  #define NIC_CFG_RSS_BASE_CPU_MASK_FIELD		7UL
  #define NIC_CFG_RSS_BASE_CPU_SHIFT		19
  #define NIC_CFG_RSS_ENABLE			(1UL << 22)
  #define NIC_CFG_RSS_ENABLE_MASK_FIELD		1UL
  #define NIC_CFG_RSS_ENABLE_SHIFT		22
  #define NIC_CFG_TSO_IPID_SPLIT_EN		(1UL << 23)
  #define NIC_CFG_TSO_IPID_SPLIT_EN_MASK_FIELD	1UL
  #define NIC_CFG_TSO_IPID_SPLIT_EN_SHIFT		23
  #define NIC_CFG_IG_VLAN_STRIP_EN		(1UL << 24)
  #define NIC_CFG_IG_VLAN_STRIP_EN_MASK_FIELD	1UL
  #define NIC_CFG_IG_VLAN_STRIP_EN_SHIFT		24
  
  static inline void vnic_set_nic_cfg(u32 *nic_cfg,
  	u8 rss_default_cpu, u8 rss_hash_type,
  	u8 rss_hash_bits, u8 rss_base_cpu,
  	u8 rss_enable, u8 tso_ipid_split_en,
  	u8 ig_vlan_strip_en)
  {
  	*nic_cfg = (rss_default_cpu & NIC_CFG_RSS_DEFAULT_CPU_MASK_FIELD) |
  		((rss_hash_type & NIC_CFG_RSS_HASH_TYPE_MASK_FIELD)
  			<< NIC_CFG_RSS_HASH_TYPE_SHIFT) |
  		((rss_hash_bits & NIC_CFG_RSS_HASH_BITS_MASK_FIELD)
  			<< NIC_CFG_RSS_HASH_BITS_SHIFT) |
  		((rss_base_cpu & NIC_CFG_RSS_BASE_CPU_MASK_FIELD)
  			<< NIC_CFG_RSS_BASE_CPU_SHIFT) |
  		((rss_enable & NIC_CFG_RSS_ENABLE_MASK_FIELD)
  			<< NIC_CFG_RSS_ENABLE_SHIFT) |
  		((tso_ipid_split_en & NIC_CFG_TSO_IPID_SPLIT_EN_MASK_FIELD)
  			<< NIC_CFG_TSO_IPID_SPLIT_EN_SHIFT) |
  		((ig_vlan_strip_en & NIC_CFG_IG_VLAN_STRIP_EN_MASK_FIELD)
  			<< NIC_CFG_IG_VLAN_STRIP_EN_SHIFT);
  }
  
  #endif /* _VNIC_NIC_H_ */