nes_context.h

/*
 * Copyright (c) 2006 - 2009 Intel Corporation.  All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * 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 NES_CONTEXT_H
#define NES_CONTEXT_H

struct nes_qp_context {
	__le32   misc;
	__le32   cqs;
	__le32   sq_addr_low;
	__le32   sq_addr_high;
	__le32   rq_addr_low;
	__le32   rq_addr_high;
	__le32   misc2;
	__le16   tcpPorts[2];
	__le32   ip0;
	__le32   ip1;
	__le32   ip2;
	__le32   ip3;
	__le32   mss;
	__le32   arp_index_vlan;
	__le32   tcp_state_flow_label;
	__le32   pd_index_wscale;
	__le32   keepalive;
	u32   ts_recent;
	u32   ts_age;
	__le32   snd_nxt;
	__le32   snd_wnd;
	__le32   rcv_nxt;
	__le32   rcv_wnd;
	__le32   snd_max;
	__le32   snd_una;
	u32   srtt;
	__le32   rttvar;
	__le32   ssthresh;
	__le32   cwnd;
	__le32   snd_wl1;
	__le32   snd_wl2;
	__le32   max_snd_wnd;
	__le32   ts_val_delta;
	u32   retransmit;
	u32   probe_cnt;
	u32   hte_index;
	__le32   q2_addr_low;
	__le32   q2_addr_high;
	__le32   ird_index;
	u32   Rsvd3;
	__le32   ird_ord_sizes;
	u32   mrkr_offset;
	__le32   aeq_token_low;
	__le32   aeq_token_high;
};

/* QP Context Misc Field */

#define NES_QPCONTEXT_MISC_IWARP_VER_MASK    0x00000003
#define NES_QPCONTEXT_MISC_IWARP_VER_SHIFT   0
#define NES_QPCONTEXT_MISC_EFB_SIZE_MASK     0x000000C0
#define NES_QPCONTEXT_MISC_EFB_SIZE_SHIFT    6
#define NES_QPCONTEXT_MISC_RQ_SIZE_MASK      0x00000300
#define NES_QPCONTEXT_MISC_RQ_SIZE_SHIFT     8
#define NES_QPCONTEXT_MISC_SQ_SIZE_MASK      0x00000c00
#define NES_QPCONTEXT_MISC_SQ_SIZE_SHIFT     10
#define NES_QPCONTEXT_MISC_PCI_FCN_MASK      0x00007000
#define NES_QPCONTEXT_MISC_PCI_FCN_SHIFT     12
#define NES_QPCONTEXT_MISC_DUP_ACKS_MASK     0x00070000
#define NES_QPCONTEXT_MISC_DUP_ACKS_SHIFT    16

enum nes_qp_context_misc_bits {
	NES_QPCONTEXT_MISC_RX_WQE_SIZE         = 0x00000004,
	NES_QPCONTEXT_MISC_IPV4                = 0x00000008,
	NES_QPCONTEXT_MISC_DO_NOT_FRAG         = 0x00000010,
	NES_QPCONTEXT_MISC_INSERT_VLAN         = 0x00000020,
	NES_QPCONTEXT_MISC_DROS                = 0x00008000,
	NES_QPCONTEXT_MISC_WSCALE              = 0x00080000,
	NES_QPCONTEXT_MISC_KEEPALIVE           = 0x00100000,
	NES_QPCONTEXT_MISC_TIMESTAMP           = 0x00200000,
	NES_QPCONTEXT_MISC_SACK                = 0x00400000,
	NES_QPCONTEXT_MISC_RDMA_WRITE_EN       = 0x00800000,
	NES_QPCONTEXT_MISC_RDMA_READ_EN        = 0x01000000,
	NES_QPCONTEXT_MISC_WBIND_EN            = 0x10000000,
	NES_QPCONTEXT_MISC_FAST_REGISTER_EN    = 0x20000000,
	NES_QPCONTEXT_MISC_PRIV_EN             = 0x40000000,
	NES_QPCONTEXT_MISC_NO_NAGLE            = 0x80000000
};

enum nes_qp_acc_wq_sizes {
	HCONTEXT_TSA_WQ_SIZE_4 = 0,
	HCONTEXT_TSA_WQ_SIZE_32 = 1,
	HCONTEXT_TSA_WQ_SIZE_128 = 2,
	HCONTEXT_TSA_WQ_SIZE_512 = 3
};

/* QP Context Misc2 Fields */
#define NES_QPCONTEXT_MISC2_TTL_MASK            0x000000ff
#define NES_QPCONTEXT_MISC2_TTL_SHIFT           0
#define NES_QPCONTEXT_MISC2_HOP_LIMIT_MASK      0x000000ff
#define NES_QPCONTEXT_MISC2_HOP_LIMIT_SHIFT     0
#define NES_QPCONTEXT_MISC2_LIMIT_MASK          0x00000300
#define NES_QPCONTEXT_MISC2_LIMIT_SHIFT         8
#define NES_QPCONTEXT_MISC2_NIC_INDEX_MASK      0x0000fc00
#define NES_QPCONTEXT_MISC2_NIC_INDEX_SHIFT     10
#define NES_QPCONTEXT_MISC2_SRC_IP_MASK         0x001f0000
#define NES_QPCONTEXT_MISC2_SRC_IP_SHIFT        16
#define NES_QPCONTEXT_MISC2_TOS_MASK            0xff000000
#define NES_QPCONTEXT_MISC2_TOS_SHIFT           24
#define NES_QPCONTEXT_MISC2_TRAFFIC_CLASS_MASK  0xff000000
#define NES_QPCONTEXT_MISC2_TRAFFIC_CLASS_SHIFT 24

/* QP Context Tcp State/Flow Label Fields */
#define NES_QPCONTEXT_TCPFLOW_FLOW_LABEL_MASK   0x000fffff
#define NES_QPCONTEXT_TCPFLOW_FLOW_LABEL_SHIFT  0
#define NES_QPCONTEXT_TCPFLOW_TCP_STATE_MASK    0xf0000000
#define NES_QPCONTEXT_TCPFLOW_TCP_STATE_SHIFT   28

enum nes_qp_tcp_state {
	NES_QPCONTEXT_TCPSTATE_CLOSED = 1,
	NES_QPCONTEXT_TCPSTATE_EST = 5,
	NES_QPCONTEXT_TCPSTATE_TIME_WAIT = 11,
};

/* QP Context PD Index/wscale Fields */
#define NES_QPCONTEXT_PDWSCALE_RCV_WSCALE_MASK  0x0000000f
#define NES_QPCONTEXT_PDWSCALE_RCV_WSCALE_SHIFT 0
#define NES_QPCONTEXT_PDWSCALE_SND_WSCALE_MASK  0x00000f00
#define NES_QPCONTEXT_PDWSCALE_SND_WSCALE_SHIFT 8
#define NES_QPCONTEXT_PDWSCALE_PDINDEX_MASK     0xffff0000
#define NES_QPCONTEXT_PDWSCALE_PDINDEX_SHIFT    16

/* QP Context Keepalive Fields */
#define NES_QPCONTEXT_KEEPALIVE_DELTA_MASK      0x0000ffff
#define NES_QPCONTEXT_KEEPALIVE_DELTA_SHIFT     0
#define NES_QPCONTEXT_KEEPALIVE_PROBE_CNT_MASK  0x00ff0000
#define NES_QPCONTEXT_KEEPALIVE_PROBE_CNT_SHIFT 16
#define NES_QPCONTEXT_KEEPALIVE_INTV_MASK       0xff000000
#define NES_QPCONTEXT_KEEPALIVE_INTV_SHIFT      24

/* QP Context ORD/IRD Fields */
#define NES_QPCONTEXT_ORDIRD_ORDSIZE_MASK       0x0000007f
#define NES_QPCONTEXT_ORDIRD_ORDSIZE_SHIFT      0
#define NES_QPCONTEXT_ORDIRD_IRDSIZE_MASK       0x00030000
#define NES_QPCONTEXT_ORDIRD_IRDSIZE_SHIFT      16
#define NES_QPCONTEXT_ORDIRD_IWARP_MODE_MASK    0x30000000
#define NES_QPCONTEXT_ORDIRD_IWARP_MODE_SHIFT   28

enum nes_ord_ird_bits {
	NES_QPCONTEXT_ORDIRD_WRPDU                   = 0x02000000,
	NES_QPCONTEXT_ORDIRD_LSMM_PRESENT            = 0x04000000,
	NES_QPCONTEXT_ORDIRD_ALSMM                   = 0x08000000,
	NES_QPCONTEXT_ORDIRD_AAH                     = 0x40000000,
	NES_QPCONTEXT_ORDIRD_RNMC                    = 0x80000000
};

enum nes_iwarp_qp_state {
	NES_QPCONTEXT_IWARP_STATE_NONEXIST  = 0,
	NES_QPCONTEXT_IWARP_STATE_IDLE      = 1,
	NES_QPCONTEXT_IWARP_STATE_RTS       = 2,
	NES_QPCONTEXT_IWARP_STATE_CLOSING   = 3,
	NES_QPCONTEXT_IWARP_STATE_TERMINATE = 5,
	NES_QPCONTEXT_IWARP_STATE_ERROR     = 6
};


#endif		/* NES_CONTEXT_H */