ceph/src/dpdk/drivers/net/enic/base/vnic_rss.c

   1 /*
   2  * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
   3  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
   4  *
   5  * Copyright (c) 2014, Cisco Systems, Inc.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  * notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  * notice, this list of conditions and the following disclaimer in
  17  * the documentation and/or other materials provided with the
  18  * distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  23  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  24  * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  26  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  27  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  28  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  30  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  31  * POSSIBILITY OF SUCH DAMAGE.
  32  *
  33  */
  34
  35 #include "enic_compat.h"
  36 #include "vnic_rss.h"
  37
  38 void vnic_set_rss_key(union vnic_rss_key *rss_key, u8 *key)
  39 {
  40         u32 i;
  41         u32 *p;
  42         u16 *q;
  43
  44         for (i = 0; i < 4; ++i) {
  45                 p = (u32 *)(key + (10 * i));
  46                 iowrite32(*p++, &rss_key->key[i].b[0]);
  47                 iowrite32(*p++, &rss_key->key[i].b[4]);
  48                 q = (u16 *)p;
  49                 iowrite32(*q, &rss_key->key[i].b[8]);
  50         }
  51 }
  52
  53 void vnic_set_rss_cpu(union vnic_rss_cpu *rss_cpu, u8 *cpu)
  54 {
  55         u32 i;
  56         u32 *p = (u32 *)cpu;
  57
  58         for (i = 0; i < 32; ++i)
  59                 iowrite32(*p++, &rss_cpu->cpu[i].b[0]);
  60 }
  61
  62 void vnic_get_rss_key(union vnic_rss_key *rss_key, u8 *key)
  63 {
  64         u32 i;
  65         u32 *p;
  66         u16 *q;
  67
  68         for (i = 0; i < 4; ++i) {
  69                 p = (u32 *)(key + (10 * i));
  70                 *p++ = ioread32(&rss_key->key[i].b[0]);
  71                 *p++ = ioread32(&rss_key->key[i].b[4]);
  72                 q = (u16 *)p;
  73                 *q = (u16)ioread32(&rss_key->key[i].b[8]);
  74         }
  75 }
  76
  77 void vnic_get_rss_cpu(union vnic_rss_cpu *rss_cpu, u8 *cpu)
  78 {
  79         u32 i;
  80         u32 *p = (u32 *)cpu;
  81
  82         for (i = 0; i < 32; ++i)
  83                 *p++ = ioread32(&rss_cpu->cpu[i].b[0]);
  84 }