vnic_nic.h

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/*
 * Copyright 2008-2010 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_

#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

#define NIC_CFG_RSS_HASH_TYPE_IPV4      (1 << 1)
#define NIC_CFG_RSS_HASH_TYPE_TCP_IPV4      (1 << 2)
#define NIC_CFG_RSS_HASH_TYPE_IPV6      (1 << 3)
#define NIC_CFG_RSS_HASH_TYPE_TCP_IPV6      (1 << 4)
#define NIC_CFG_RSS_HASH_TYPE_IPV6_EX       (1 << 5)
#define NIC_CFG_RSS_HASH_TYPE_TCP_IPV6_EX   (1 << 6)

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_ */