[linux-2.6-block.git] / include / linux / mlx4 / qp.h

/*
 * Copyright (c) 2007 Cisco Systems, Inc.  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 MLX4_QP_H
#define MLX4_QP_H

#include <linux/types.h>

#include <linux/mlx4/device.h>

#define MLX4_INVALID_LKEY	0x100

enum mlx4_qp_optpar {
	MLX4_QP_OPTPAR_ALT_ADDR_PATH		= 1 << 0,
	MLX4_QP_OPTPAR_RRE			= 1 << 1,
	MLX4_QP_OPTPAR_RAE			= 1 << 2,
	MLX4_QP_OPTPAR_RWE			= 1 << 3,
	MLX4_QP_OPTPAR_PKEY_INDEX		= 1 << 4,
	MLX4_QP_OPTPAR_Q_KEY			= 1 << 5,
	MLX4_QP_OPTPAR_RNR_TIMEOUT		= 1 << 6,
	MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH	= 1 << 7,
	MLX4_QP_OPTPAR_SRA_MAX			= 1 << 8,
	MLX4_QP_OPTPAR_RRA_MAX			= 1 << 9,
	MLX4_QP_OPTPAR_PM_STATE			= 1 << 10,
	MLX4_QP_OPTPAR_RETRY_COUNT		= 1 << 12,
	MLX4_QP_OPTPAR_RNR_RETRY		= 1 << 13,
	MLX4_QP_OPTPAR_ACK_TIMEOUT		= 1 << 14,
	MLX4_QP_OPTPAR_SCHED_QUEUE		= 1 << 16
};

enum mlx4_qp_state {
	MLX4_QP_STATE_RST			= 0,
	MLX4_QP_STATE_INIT			= 1,
	MLX4_QP_STATE_RTR			= 2,
	MLX4_QP_STATE_RTS			= 3,
	MLX4_QP_STATE_SQER			= 4,
	MLX4_QP_STATE_SQD			= 5,
	MLX4_QP_STATE_ERR			= 6,
	MLX4_QP_STATE_SQ_DRAINING		= 7,
	MLX4_QP_NUM_STATE
};

enum {
	MLX4_QP_ST_RC				= 0x0,
	MLX4_QP_ST_UC				= 0x1,
	MLX4_QP_ST_RD				= 0x2,
	MLX4_QP_ST_UD				= 0x3,
	MLX4_QP_ST_MLX				= 0x7
};

enum {
	MLX4_QP_PM_MIGRATED			= 0x3,
	MLX4_QP_PM_ARMED			= 0x0,
	MLX4_QP_PM_REARM			= 0x1
};

enum {
	/* params1 */
	MLX4_QP_BIT_SRE				= 1 << 15,
	MLX4_QP_BIT_SWE				= 1 << 14,
	MLX4_QP_BIT_SAE				= 1 << 13,
	/* params2 */
	MLX4_QP_BIT_RRE				= 1 << 15,
	MLX4_QP_BIT_RWE				= 1 << 14,
	MLX4_QP_BIT_RAE				= 1 << 13,
	MLX4_QP_BIT_RIC				= 1 <<	4,
};

struct mlx4_qp_path {
	u8			fl;
	u8			reserved1[2];
	u8			pkey_index;
	u8			reserved2;
	u8			grh_mylmc;
	__be16			rlid;
	u8			ackto;
	u8			mgid_index;
	u8			static_rate;
	u8			hop_limit;
	__be32			tclass_flowlabel;
	u8			rgid[16];
	u8			sched_queue;
	u8			snooper_flags;
	u8			reserved3[2];
	u8			counter_index;
	u8			reserved4[7];
};

struct mlx4_qp_context {
	__be32			flags;
	__be32			pd;
	u8			mtu_msgmax;
	u8			rq_size_stride;
	u8			sq_size_stride;
	u8			rlkey;
	__be32			usr_page;
	__be32			local_qpn;
	__be32			remote_qpn;
	struct			mlx4_qp_path pri_path;
	struct			mlx4_qp_path alt_path;
	__be32			params1;
	u32			reserved1;
	__be32			next_send_psn;
	__be32			cqn_send;
	u32			reserved2[2];
	__be32			last_acked_psn;
	__be32			ssn;
	__be32			params2;
	__be32			rnr_nextrecvpsn;
	__be32			srcd;
	__be32			cqn_recv;
	__be64			db_rec_addr;
	__be32			qkey;
	__be32			srqn;
	__be32			msn;
	__be16			rq_wqe_counter;
	__be16			sq_wqe_counter;
	u32			reserved3[2];
	__be32			param3;
	__be32			nummmcpeers_basemkey;
	u8			log_page_size;
	u8			reserved4[2];
	u8			mtt_base_addr_h;
	__be32			mtt_base_addr_l;
	u32			reserved5[10];
};

/* Which firmware version adds support for NEC (NoErrorCompletion) bit */
#define MLX4_FW_VER_WQE_CTRL_NEC mlx4_fw_ver(2, 2, 232)

enum {
	MLX4_WQE_CTRL_NEC		= 1 << 29,
	MLX4_WQE_CTRL_FENCE		= 1 << 6,
	MLX4_WQE_CTRL_CQ_UPDATE		= 3 << 2,
	MLX4_WQE_CTRL_SOLICITED		= 1 << 1,
	MLX4_WQE_CTRL_IP_CSUM		= 1 << 4,
	MLX4_WQE_CTRL_TCP_UDP_CSUM	= 1 << 5,
};

struct mlx4_wqe_ctrl_seg {
	__be32			owner_opcode;
	u8			reserved2[3];
	u8			fence_size;
	/*
	 * High 24 bits are SRC remote buffer; low 8 bits are flags:
	 * [7]   SO (strong ordering)
	 * [5]   TCP/UDP checksum
	 * [4]   IP checksum
	 * [3:2] C (generate completion queue entry)
	 * [1]   SE (solicited event)
	 */
	__be32			srcrb_flags;
	/*
	 * imm is immediate data for send/RDMA write w/ immediate;
	 * also invalidation key for send with invalidate; input
	 * modifier for WQEs on CCQs.
	 */
	__be32			imm;
};

enum {
	MLX4_WQE_MLX_VL15	= 1 << 17,
	MLX4_WQE_MLX_SLR	= 1 << 16
};

struct mlx4_wqe_mlx_seg {
	u8			owner;
	u8			reserved1[2];
	u8			opcode;
	u8			reserved2[3];
	u8			size;
	/*
	 * [17]    VL15
	 * [16]    SLR
	 * [15:12] static rate
	 * [11:8]  SL
	 * [4]     ICRC
	 * [3:2]   C
	 * [0]     FL (force loopback)
	 */
	__be32			flags;
	__be16			rlid;
	u16			reserved3;
};

struct mlx4_wqe_datagram_seg {
	__be32			av[8];
	__be32			dqpn;
	__be32			qkey;
	__be32			reservd[2];
};

struct mlx4_lso_seg {
	__be32			mss_hdr_size;
	__be32			header[0];
};

struct mlx4_wqe_bind_seg {
	__be32			flags1;
	__be32			flags2;
	__be32			new_rkey;
	__be32			lkey;
	__be64			addr;
	__be64			length;
};

struct mlx4_wqe_fmr_seg {
	__be32			flags;
	__be32			mem_key;
	__be64			buf_list;
	__be64			start_addr;
	__be64			reg_len;
	__be32			offset;
	__be32			page_size;
	u32			reserved[2];
};

struct mlx4_wqe_fmr_ext_seg {
	u8			flags;
	u8			reserved;
	__be16			app_mask;
	__be16			wire_app_tag;
	__be16			mem_app_tag;
	__be32			wire_ref_tag_base;
	__be32			mem_ref_tag_base;
};

struct mlx4_wqe_local_inval_seg {
	u8			flags;
	u8			reserved1[3];
	__be32			mem_key;
	u8			reserved2[3];
	u8			guest_id;
	__be64			pa;
};

struct mlx4_wqe_raddr_seg {
	__be64			raddr;
	__be32			rkey;
	u32			reserved;
};

struct mlx4_wqe_atomic_seg {
	__be64			swap_add;
	__be64			compare;
};

struct mlx4_wqe_data_seg {
	__be32			byte_count;
	__be32			lkey;
	__be64			addr;
};

enum {
	MLX4_INLINE_ALIGN	= 64,
};

struct mlx4_wqe_inline_seg {
	__be32			byte_count;
};

int mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
		   enum mlx4_qp_state cur_state, enum mlx4_qp_state new_state,
		   struct mlx4_qp_context *context, enum mlx4_qp_optpar optpar,
		   int sqd_event, struct mlx4_qp *qp);

int mlx4_qp_query(struct mlx4_dev *dev, struct mlx4_qp *qp,
		  struct mlx4_qp_context *context);

static inline struct mlx4_qp *__mlx4_qp_lookup(struct mlx4_dev *dev, u32 qpn)
{
	return radix_tree_lookup(&dev->qp_table_tree, qpn & (dev->caps.num_qps - 1));
}

void mlx4_qp_remove(struct mlx4_dev *dev, struct mlx4_qp *qp);

#endif /* MLX4_QP_H */
Commit	Line	Data
225c7b1f RD	1	/*
	2	* Copyright (c) 2007 Cisco Systems, Inc. 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 MLX4_QP_H
	34	#define MLX4_QP_H
	35
	36	#include <linux/types.h>
	37
	38	#include <linux/mlx4/device.h>
	39
	40	#define MLX4_INVALID_LKEY 0x100
	41
	42	enum mlx4_qp_optpar {
	43	MLX4_QP_OPTPAR_ALT_ADDR_PATH = 1 << 0,
	44	MLX4_QP_OPTPAR_RRE = 1 << 1,
	45	MLX4_QP_OPTPAR_RAE = 1 << 2,
	46	MLX4_QP_OPTPAR_RWE = 1 << 3,
	47	MLX4_QP_OPTPAR_PKEY_INDEX = 1 << 4,
	48	MLX4_QP_OPTPAR_Q_KEY = 1 << 5,
	49	MLX4_QP_OPTPAR_RNR_TIMEOUT = 1 << 6,
	50	MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH = 1 << 7,
	51	MLX4_QP_OPTPAR_SRA_MAX = 1 << 8,
	52	MLX4_QP_OPTPAR_RRA_MAX = 1 << 9,
	53	MLX4_QP_OPTPAR_PM_STATE = 1 << 10,
	54	MLX4_QP_OPTPAR_RETRY_COUNT = 1 << 12,
	55	MLX4_QP_OPTPAR_RNR_RETRY = 1 << 13,
	56	MLX4_QP_OPTPAR_ACK_TIMEOUT = 1 << 14,
	57	MLX4_QP_OPTPAR_SCHED_QUEUE = 1 << 16
	58	};
	59
	60	enum mlx4_qp_state {
	61	MLX4_QP_STATE_RST = 0,
	62	MLX4_QP_STATE_INIT = 1,
	63	MLX4_QP_STATE_RTR = 2,
	64	MLX4_QP_STATE_RTS = 3,
65	MLX4_QP_STATE_SQER = 4,
66	MLX4_QP_STATE_SQD = 5,
67	MLX4_QP_STATE_ERR = 6,
68	MLX4_QP_STATE_SQ_DRAINING = 7,
69	MLX4_QP_NUM_STATE
70	};
71
72	enum {
73	MLX4_QP_ST_RC = 0x0,
74	MLX4_QP_ST_UC = 0x1,
75	MLX4_QP_ST_RD = 0x2,
76	MLX4_QP_ST_UD = 0x3,
77	MLX4_QP_ST_MLX = 0x7
78	};
79
80	enum {
81	MLX4_QP_PM_MIGRATED = 0x3,
82	MLX4_QP_PM_ARMED = 0x0,
83	MLX4_QP_PM_REARM = 0x1
84	};
85
86	enum {
87	/* params1 */
88	MLX4_QP_BIT_SRE = 1 << 15,
89	MLX4_QP_BIT_SWE = 1 << 14,
90	MLX4_QP_BIT_SAE = 1 << 13,
91	/* params2 */
92	MLX4_QP_BIT_RRE = 1 << 15,
93	MLX4_QP_BIT_RWE = 1 << 14,
94	MLX4_QP_BIT_RAE = 1 << 13,
95	MLX4_QP_BIT_RIC = 1 << 4,
96	};
97
98	struct mlx4_qp_path {
99	u8 fl;
100	u8 reserved1[2];
101	u8 pkey_index;
102	u8 reserved2;
103	u8 grh_mylmc;
104	__be16 rlid;
105	u8 ackto;
106	u8 mgid_index;
107	u8 static_rate;
108	u8 hop_limit;
109	__be32 tclass_flowlabel;
110	u8 rgid[16];
111	u8 sched_queue;
112	u8 snooper_flags;
113	u8 reserved3[2];
114	u8 counter_index;
115	u8 reserved4[7];
116	};
117
118	struct mlx4_qp_context {
119	__be32 flags;
120	__be32 pd;
121	u8 mtu_msgmax;
122	u8 rq_size_stride;
123	u8 sq_size_stride;
124	u8 rlkey;
125	__be32 usr_page;
126	__be32 local_qpn;
127	__be32 remote_qpn;
128	struct mlx4_qp_path pri_path;
129	struct mlx4_qp_path alt_path;
130	__be32 params1;
131	u32 reserved1;
132	__be32 next_send_psn;
133	__be32 cqn_send;
134	u32 reserved2[2];
135	__be32 last_acked_psn;
136	__be32 ssn;
137	__be32 params2;
138	__be32 rnr_nextrecvpsn;
139	__be32 srcd;
140	__be32 cqn_recv;
141	__be64 db_rec_addr;
142	__be32 qkey;
143	__be32 srqn;
144	__be32 msn;
145	__be16 rq_wqe_counter;
146	__be16 sq_wqe_counter;
147	u32 reserved3[2];
148	__be32 param3;
149	__be32 nummmcpeers_basemkey;
150	u8 log_page_size;
151	u8 reserved4[2];
152	u8 mtt_base_addr_h;
153	__be32 mtt_base_addr_l;
154	u32 reserved5[10];
155	};
156
ea54b10c JM	157	/* Which firmware version adds support for NEC (NoErrorCompletion) bit */
	158	#define MLX4_FW_VER_WQE_CTRL_NEC mlx4_fw_ver(2, 2, 232)
	159
225c7b1f	160	enum {
8ff095ec EC	161	MLX4_WQE_CTRL_NEC = 1 << 29,
	162	MLX4_WQE_CTRL_FENCE = 1 << 6,
	163	MLX4_WQE_CTRL_CQ_UPDATE = 3 << 2,
	164	MLX4_WQE_CTRL_SOLICITED = 1 << 1,
	165	MLX4_WQE_CTRL_IP_CSUM = 1 << 4,
	166	MLX4_WQE_CTRL_TCP_UDP_CSUM = 1 << 5,
225c7b1f RD	167	};
	168
	169	struct mlx4_wqe_ctrl_seg {
	170	__be32 owner_opcode;
	171	u8 reserved2[3];
	172	u8 fence_size;
	173	/*
	174	* High 24 bits are SRC remote buffer; low 8 bits are flags:
	175	* [7] SO (strong ordering)
	176	* [5] TCP/UDP checksum
	177	* [4] IP checksum
	178	* [3:2] C (generate completion queue entry)
	179	* [1] SE (solicited event)
	180	*/
	181	__be32 srcrb_flags;
	182	/*
	183	* imm is immediate data for send/RDMA write w/ immediate;
	184	* also invalidation key for send with invalidate; input
	185	* modifier for WQEs on CCQs.
	186	*/
	187	__be32 imm;
	188	};
	189
	190	enum {
	191	MLX4_WQE_MLX_VL15 = 1 << 17,
	192	MLX4_WQE_MLX_SLR = 1 << 16
	193	};
	194
	195	struct mlx4_wqe_mlx_seg {
	196	u8 owner;
	197	u8 reserved1[2];
	198	u8 opcode;
	199	u8 reserved2[3];
	200	u8 size;
	201	/*
	202	* [17] VL15
	203	* [16] SLR
	204	* [15:12] static rate
	205	* [11:8] SL
	206	* [4] ICRC
	207	* [3:2] C
	208	* [0] FL (force loopback)
	209	*/
	210	__be32 flags;
	211	__be16 rlid;
	212	u16 reserved3;
	213	};
	214
	215	struct mlx4_wqe_datagram_seg {
	216	__be32 av[8];
	217	__be32 dqpn;
	218	__be32 qkey;
	219	__be32 reservd[2];
	220	};
	221
b832be1e EC	222	struct mlx4_lso_seg {
	223	__be32 mss_hdr_size;
	224	__be32 header[0];
	225	};
	226
225c7b1f RD	227	struct mlx4_wqe_bind_seg {
	228	__be32 flags1;
	229	__be32 flags2;
	230	__be32 new_rkey;
	231	__be32 lkey;
	232	__be64 addr;
	233	__be64 length;
	234	};
	235
	236	struct mlx4_wqe_fmr_seg {
	237	__be32 flags;
	238	__be32 mem_key;
	239	__be64 buf_list;
	240	__be64 start_addr;
	241	__be64 reg_len;
	242	__be32 offset;
	243	__be32 page_size;
	244	u32 reserved[2];
	245	};
	246
	247	struct mlx4_wqe_fmr_ext_seg {
	248	u8 flags;
	249	u8 reserved;
	250	__be16 app_mask;
	251	__be16 wire_app_tag;
	252	__be16 mem_app_tag;
	253	__be32 wire_ref_tag_base;
	254	__be32 mem_ref_tag_base;
	255	};
	256
	257	struct mlx4_wqe_local_inval_seg {
	258	u8 flags;
	259	u8 reserved1[3];
	260	__be32 mem_key;
	261	u8 reserved2[3];
	262	u8 guest_id;
	263	__be64 pa;
	264	};
	265
	266	struct mlx4_wqe_raddr_seg {
	267	__be64 raddr;
	268	__be32 rkey;
	269	u32 reserved;
	270	};
	271
	272	struct mlx4_wqe_atomic_seg {
	273	__be64 swap_add;
	274	__be64 compare;
	275	};
	276
	277	struct mlx4_wqe_data_seg {
	278	__be32 byte_count;
	279	__be32 lkey;
	280	__be64 addr;
	281	};
	282
e61ef241 RD	283	enum {
	284	MLX4_INLINE_ALIGN = 64,
	285	};
	286
225c7b1f RD	287	struct mlx4_wqe_inline_seg {
	288	__be32 byte_count;
	289	};
	290
	291	int mlx4_qp_modify(struct mlx4_dev dev, struct mlx4_mtt mtt,
	292	enum mlx4_qp_state cur_state, enum mlx4_qp_state new_state,
	293	struct mlx4_qp_context *context, enum mlx4_qp_optpar optpar,
	294	int sqd_event, struct mlx4_qp *qp);
	295
6a775e2b JM	296	int mlx4_qp_query(struct mlx4_dev dev, struct mlx4_qp qp,
	297	struct mlx4_qp_context *context);
	298
225c7b1f RD	299	static inline struct mlx4_qp __mlx4_qp_lookup(struct mlx4_dev dev, u32 qpn)
	300	{
	301	return radix_tree_lookup(&dev->qp_table_tree, qpn & (dev->caps.num_qps - 1));
	302	}
	303
	304	void mlx4_qp_remove(struct mlx4_dev dev, struct mlx4_qp qp);
	305
	306	#endif /* MLX4_QP_H */