drivers/infiniband/hw/nes/nes_context.h

   1 /*
   2  * Copyright (c) 2006 - 2009 Intel Corporation.  All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32
  33 #ifndef NES_CONTEXT_H
  34 #define NES_CONTEXT_H
  35
  36 struct nes_qp_context {
  37         __le32   misc;
  38         __le32   cqs;
  39         __le32   sq_addr_low;
  40         __le32   sq_addr_high;
  41         __le32   rq_addr_low;
  42         __le32   rq_addr_high;
  43         __le32   misc2;
  44         __le16   tcpPorts[2];
  45         __le32   ip0;
  46         __le32   ip1;
  47         __le32   ip2;
  48         __le32   ip3;
  49         __le32   mss;
  50         __le32   arp_index_vlan;
  51         __le32   tcp_state_flow_label;
  52         __le32   pd_index_wscale;
  53         __le32   keepalive;
  54         u32   ts_recent;
  55         u32   ts_age;
  56         __le32   snd_nxt;
  57         __le32   snd_wnd;
  58         __le32   rcv_nxt;
  59         __le32   rcv_wnd;
  60         __le32   snd_max;
  61         __le32   snd_una;
  62         u32   srtt;
  63         __le32   rttvar;
  64         __le32   ssthresh;
  65         __le32   cwnd;
  66         __le32   snd_wl1;
  67         __le32   snd_wl2;
  68         __le32   max_snd_wnd;
  69         __le32   ts_val_delta;
  70         u32   retransmit;
  71         u32   probe_cnt;
  72         u32   hte_index;
  73         __le32   q2_addr_low;
  74         __le32   q2_addr_high;
  75         __le32   ird_index;
  76         u32   Rsvd3;
  77         __le32   ird_ord_sizes;
  78         u32   mrkr_offset;
  79         __le32   aeq_token_low;
  80         __le32   aeq_token_high;
  81 };
  82
  83 /* QP Context Misc Field */
  84
  85 #define NES_QPCONTEXT_MISC_IWARP_VER_MASK    0x00000003
  86 #define NES_QPCONTEXT_MISC_IWARP_VER_SHIFT   0
  87 #define NES_QPCONTEXT_MISC_EFB_SIZE_MASK     0x000000C0
  88 #define NES_QPCONTEXT_MISC_EFB_SIZE_SHIFT    6
  89 #define NES_QPCONTEXT_MISC_RQ_SIZE_MASK      0x00000300
  90 #define NES_QPCONTEXT_MISC_RQ_SIZE_SHIFT     8
  91 #define NES_QPCONTEXT_MISC_SQ_SIZE_MASK      0x00000c00
  92 #define NES_QPCONTEXT_MISC_SQ_SIZE_SHIFT     10
  93 #define NES_QPCONTEXT_MISC_PCI_FCN_MASK      0x00007000
  94 #define NES_QPCONTEXT_MISC_PCI_FCN_SHIFT     12
  95 #define NES_QPCONTEXT_MISC_DUP_ACKS_MASK     0x00070000
  96 #define NES_QPCONTEXT_MISC_DUP_ACKS_SHIFT    16
  97
  98 enum nes_qp_context_misc_bits {
  99         NES_QPCONTEXT_MISC_RX_WQE_SIZE         = 0x00000004,
 100         NES_QPCONTEXT_MISC_IPV4                = 0x00000008,
 101         NES_QPCONTEXT_MISC_DO_NOT_FRAG         = 0x00000010,
 102         NES_QPCONTEXT_MISC_INSERT_VLAN         = 0x00000020,
 103         NES_QPCONTEXT_MISC_DROS                = 0x00008000,
 104         NES_QPCONTEXT_MISC_WSCALE              = 0x00080000,
 105         NES_QPCONTEXT_MISC_KEEPALIVE           = 0x00100000,
 106         NES_QPCONTEXT_MISC_TIMESTAMP           = 0x00200000,
 107         NES_QPCONTEXT_MISC_SACK                = 0x00400000,
 108         NES_QPCONTEXT_MISC_RDMA_WRITE_EN       = 0x00800000,
 109         NES_QPCONTEXT_MISC_RDMA_READ_EN        = 0x01000000,
 110         NES_QPCONTEXT_MISC_WBIND_EN            = 0x10000000,
 111         NES_QPCONTEXT_MISC_FAST_REGISTER_EN    = 0x20000000,
 112         NES_QPCONTEXT_MISC_PRIV_EN             = 0x40000000,
 113         NES_QPCONTEXT_MISC_NO_NAGLE            = 0x80000000
 114 };
 115
 116 enum nes_qp_acc_wq_sizes {
 117         HCONTEXT_TSA_WQ_SIZE_4 = 0,
 118         HCONTEXT_TSA_WQ_SIZE_32 = 1,
 119         HCONTEXT_TSA_WQ_SIZE_128 = 2,
 120         HCONTEXT_TSA_WQ_SIZE_512 = 3
 121 };
 122
 123 /* QP Context Misc2 Fields */
 124 #define NES_QPCONTEXT_MISC2_TTL_MASK            0x000000ff
 125 #define NES_QPCONTEXT_MISC2_TTL_SHIFT           0
 126 #define NES_QPCONTEXT_MISC2_HOP_LIMIT_MASK      0x000000ff
 127 #define NES_QPCONTEXT_MISC2_HOP_LIMIT_SHIFT     0
 128 #define NES_QPCONTEXT_MISC2_LIMIT_MASK          0x00000300
 129 #define NES_QPCONTEXT_MISC2_LIMIT_SHIFT         8
 130 #define NES_QPCONTEXT_MISC2_NIC_INDEX_MASK      0x0000fc00
 131 #define NES_QPCONTEXT_MISC2_NIC_INDEX_SHIFT     10
 132 #define NES_QPCONTEXT_MISC2_SRC_IP_MASK         0x001f0000
 133 #define NES_QPCONTEXT_MISC2_SRC_IP_SHIFT        16
 134 #define NES_QPCONTEXT_MISC2_TOS_MASK            0xff000000
 135 #define NES_QPCONTEXT_MISC2_TOS_SHIFT           24
 136 #define NES_QPCONTEXT_MISC2_TRAFFIC_CLASS_MASK  0xff000000
 137 #define NES_QPCONTEXT_MISC2_TRAFFIC_CLASS_SHIFT 24
 138
 139 /* QP Context Tcp State/Flow Label Fields */
 140 #define NES_QPCONTEXT_TCPFLOW_FLOW_LABEL_MASK   0x000fffff
 141 #define NES_QPCONTEXT_TCPFLOW_FLOW_LABEL_SHIFT  0
 142 #define NES_QPCONTEXT_TCPFLOW_TCP_STATE_MASK    0xf0000000
 143 #define NES_QPCONTEXT_TCPFLOW_TCP_STATE_SHIFT   28
 144
 145 enum nes_qp_tcp_state {
 146         NES_QPCONTEXT_TCPSTATE_CLOSED = 1,
 147         NES_QPCONTEXT_TCPSTATE_EST = 5,
 148         NES_QPCONTEXT_TCPSTATE_TIME_WAIT = 11,
 149 };
 150
 151 /* QP Context PD Index/wscale Fields */
 152 #define NES_QPCONTEXT_PDWSCALE_RCV_WSCALE_MASK  0x0000000f
 153 #define NES_QPCONTEXT_PDWSCALE_RCV_WSCALE_SHIFT 0
 154 #define NES_QPCONTEXT_PDWSCALE_SND_WSCALE_MASK  0x00000f00
 155 #define NES_QPCONTEXT_PDWSCALE_SND_WSCALE_SHIFT 8
 156 #define NES_QPCONTEXT_PDWSCALE_PDINDEX_MASK     0xffff0000
 157 #define NES_QPCONTEXT_PDWSCALE_PDINDEX_SHIFT    16
 158
 159 /* QP Context Keepalive Fields */
 160 #define NES_QPCONTEXT_KEEPALIVE_DELTA_MASK      0x0000ffff
 161 #define NES_QPCONTEXT_KEEPALIVE_DELTA_SHIFT     0
 162 #define NES_QPCONTEXT_KEEPALIVE_PROBE_CNT_MASK  0x00ff0000
 163 #define NES_QPCONTEXT_KEEPALIVE_PROBE_CNT_SHIFT 16
 164 #define NES_QPCONTEXT_KEEPALIVE_INTV_MASK       0xff000000
 165 #define NES_QPCONTEXT_KEEPALIVE_INTV_SHIFT      24
 166
 167 /* QP Context ORD/IRD Fields */
 168 #define NES_QPCONTEXT_ORDIRD_ORDSIZE_MASK       0x0000007f
 169 #define NES_QPCONTEXT_ORDIRD_ORDSIZE_SHIFT      0
 170 #define NES_QPCONTEXT_ORDIRD_IRDSIZE_MASK       0x00030000
 171 #define NES_QPCONTEXT_ORDIRD_IRDSIZE_SHIFT      16
 172 #define NES_QPCONTEXT_ORDIRD_IWARP_MODE_MASK    0x30000000
 173 #define NES_QPCONTEXT_ORDIRD_IWARP_MODE_SHIFT   28
 174
 175 enum nes_ord_ird_bits {
 176         NES_QPCONTEXT_ORDIRD_WRPDU                   = 0x02000000,
 177         NES_QPCONTEXT_ORDIRD_LSMM_PRESENT            = 0x04000000,
 178         NES_QPCONTEXT_ORDIRD_ALSMM                   = 0x08000000,
 179         NES_QPCONTEXT_ORDIRD_AAH                     = 0x40000000,
 180         NES_QPCONTEXT_ORDIRD_RNMC                    = 0x80000000
 181 };
 182
 183 enum nes_iwarp_qp_state {
 184         NES_QPCONTEXT_IWARP_STATE_NONEXIST  = 0,
 185         NES_QPCONTEXT_IWARP_STATE_IDLE      = 1,
 186         NES_QPCONTEXT_IWARP_STATE_RTS       = 2,
 187         NES_QPCONTEXT_IWARP_STATE_CLOSING   = 3,
 188         NES_QPCONTEXT_IWARP_STATE_TERMINATE = 5,
 189         NES_QPCONTEXT_IWARP_STATE_ERROR     = 6
 190 };
 191
 192
 193 #endif          /* NES_CONTEXT_H */