[mirror_ubuntu-artful-kernel.git] / drivers / infiniband / hw / bnxt_re / bnxt_re.h

/*
 * Broadcom NetXtreme-E RoCE driver.
 *
 * Copyright (c) 2016 - 2017, Broadcom. All rights reserved.  The term
 * Broadcom refers to Broadcom Limited and/or its subsidiaries.
 *
 * 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
 * BSD license below:
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Description: Slow Path Operators (header)
 *
 */

#ifndef __BNXT_RE_H__
#define __BNXT_RE_H__
#define ROCE_DRV_MODULE_NAME		"bnxt_re"
#define ROCE_DRV_MODULE_VERSION		"1.0.0"

#define BNXT_RE_DESC	"Broadcom NetXtreme-C/E RoCE Driver"

#define BNXT_RE_PAGE_SIZE_4K		BIT(12)
#define BNXT_RE_PAGE_SIZE_8K		BIT(13)
#define BNXT_RE_PAGE_SIZE_64K		BIT(16)
#define BNXT_RE_PAGE_SIZE_2M		BIT(21)
#define BNXT_RE_PAGE_SIZE_8M		BIT(23)
#define BNXT_RE_PAGE_SIZE_1G		BIT(30)

#define BNXT_RE_MAX_MR_SIZE		BIT(30)

#define BNXT_RE_MAX_QPC_COUNT		(64 * 1024)
#define BNXT_RE_MAX_MRW_COUNT		(64 * 1024)
#define BNXT_RE_MAX_SRQC_COUNT		(64 * 1024)
#define BNXT_RE_MAX_CQ_COUNT		(64 * 1024)

#define BNXT_RE_UD_QP_HW_STALL		0x400000

#define BNXT_RE_RQ_WQE_THRESHOLD	32

/*
 * Setting the default ack delay value to 16, which means
 * the default timeout is approx. 260ms(4 usec * 2 ^(timeout))
 */

#define BNXT_RE_DEFAULT_ACK_DELAY	16

struct bnxt_re_work {
	struct work_struct	work;
	unsigned long		event;
	struct bnxt_re_dev      *rdev;
	struct net_device	*vlan_dev;
};

struct bnxt_re_sqp_entries {
	struct bnxt_qplib_sge sge;
	u64 wrid;
	/* For storing the actual qp1 cqe */
	struct bnxt_qplib_cqe cqe;
	struct bnxt_re_qp *qp1_qp;
};

#define BNXT_RE_MIN_MSIX		2
#define BNXT_RE_MAX_MSIX		16
#define BNXT_RE_AEQ_IDX			0
#define BNXT_RE_NQ_IDX			1

struct bnxt_re_dev {
	struct ib_device		ibdev;
	struct list_head		list;
	unsigned long			flags;
#define BNXT_RE_FLAG_NETDEV_REGISTERED	0
#define BNXT_RE_FLAG_IBDEV_REGISTERED	1
#define BNXT_RE_FLAG_GOT_MSIX		2
#define BNXT_RE_FLAG_RCFW_CHANNEL_EN	8
#define BNXT_RE_FLAG_QOS_WORK_REG	16
	struct net_device		*netdev;
	unsigned int			version, major, minor;
	struct bnxt_en_dev		*en_dev;
	struct bnxt_msix_entry		msix_entries[BNXT_RE_MAX_MSIX];
	int				num_msix;

	int				id;

	struct delayed_work		worker;
	u8				cur_prio_map;

	/* FP Notification Queue (CQ & SRQ) */
	struct tasklet_struct		nq_task;

	/* RCFW Channel */
	struct bnxt_qplib_rcfw		rcfw;

	/* NQ */
	struct bnxt_qplib_nq		nq;

	/* Device Resources */
	struct bnxt_qplib_dev_attr	dev_attr;
	struct bnxt_qplib_ctx		qplib_ctx;
	struct bnxt_qplib_res		qplib_res;
	struct bnxt_qplib_dpi		dpi_privileged;

	atomic_t			qp_count;
	struct mutex			qp_lock;	/* protect qp list */
	struct list_head		qp_list;

	atomic_t			cq_count;
	atomic_t			srq_count;
	atomic_t			mr_count;
	atomic_t			mw_count;
	/* Max of 2 lossless traffic class supported per port */
	u16				cosq[2];

	/* QP for for handling QP1 packets */
	u32				sqp_id;
	struct bnxt_re_qp		*qp1_sqp;
	struct bnxt_re_ah		*sqp_ah;
	struct bnxt_re_sqp_entries sqp_tbl[1024];
};

#define to_bnxt_re_dev(ptr, member)	\
	container_of((ptr), struct bnxt_re_dev, member)

#define BNXT_RE_ROCE_V1_PACKET		0
#define BNXT_RE_ROCEV2_IPV4_PACKET	2
#define BNXT_RE_ROCEV2_IPV6_PACKET	3

static inline struct device *rdev_to_dev(struct bnxt_re_dev *rdev)
{
	if (rdev)
		return  &rdev->ibdev.dev;
	return NULL;
}

#endif
Commit	Line	Data
1ac5a404 SX	1	/*
	2	* Broadcom NetXtreme-E RoCE driver.
	3	*
	4	* Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term
	5	* Broadcom refers to Broadcom Limited and/or its subsidiaries.
	6	*
	7	* This software is available to you under a choice of one of two
	8	* licenses. You may choose to be licensed under the terms of the GNU
	9	* General Public License (GPL) Version 2, available from the file
	10	* COPYING in the main directory of this source tree, or the
	11	* BSD license below:
	12	*
	13	* Redistribution and use in source and binary forms, with or without
	14	* modification, are permitted provided that the following conditions
	15	* are met:
	16	*
	17	* 1. Redistributions of source code must retain the above copyright
	18	* notice, this list of conditions and the following disclaimer.
	19	* 2. Redistributions in binary form must reproduce the above copyright
	20	* notice, this list of conditions and the following disclaimer in
	21	* the documentation and/or other materials provided with the
	22	* distribution.
	23	*
	24	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
	25	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
	26	* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	27	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
	28	* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	29	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	30	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
	31	* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
	32	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
	33	* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
	34	* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	35	*
	36	* Description: Slow Path Operators (header)
	37	*
	38	*/
	39
	40	#ifndef __BNXT_RE_H__
	41	#define __BNXT_RE_H__
	42	#define ROCE_DRV_MODULE_NAME "bnxt_re"
	43	#define ROCE_DRV_MODULE_VERSION "1.0.0"
	44
	45	#define BNXT_RE_DESC "Broadcom NetXtreme-C/E RoCE Driver"
	46
	47	#define BNXT_RE_PAGE_SIZE_4K BIT(12)
	48	#define BNXT_RE_PAGE_SIZE_8K BIT(13)
	49	#define BNXT_RE_PAGE_SIZE_64K BIT(16)
	50	#define BNXT_RE_PAGE_SIZE_2M BIT(21)
	51	#define BNXT_RE_PAGE_SIZE_8M BIT(23)
	52	#define BNXT_RE_PAGE_SIZE_1G BIT(30)
	53
58d4a671 SX	54	#define BNXT_RE_MAX_MR_SIZE BIT(30)
58d4a671 SX	55
1ac5a404 SX	56	#define BNXT_RE_MAX_QPC_COUNT (64 * 1024)
	57	#define BNXT_RE_MAX_MRW_COUNT (64 * 1024)
	58	#define BNXT_RE_MAX_SRQC_COUNT (64 * 1024)
	59	#define BNXT_RE_MAX_CQ_COUNT (64 * 1024)
	60
3fb755b3 SK	61	#define BNXT_RE_UD_QP_HW_STALL 0x400000
3fb755b3 SK	62
018cf599 DS	63	#define BNXT_RE_RQ_WQE_THRESHOLD 32
018cf599 DS	64
601577b7 SX	65	/*
	66	* Setting the default ack delay value to 16, which means
	67	* the default timeout is approx. 260ms(4 usec * 2 ^(timeout))
	68	*/
	69
	70	#define BNXT_RE_DEFAULT_ACK_DELAY 16
	71
1ac5a404 SX	72	struct bnxt_re_work {
	73	struct work_struct work;
	74	unsigned long event;
	75	struct bnxt_re_dev *rdev;
	76	struct net_device *vlan_dev;
	77	};
	78
	79	struct bnxt_re_sqp_entries {
	80	struct bnxt_qplib_sge sge;
	81	u64 wrid;
	82	/* For storing the actual qp1 cqe */
	83	struct bnxt_qplib_cqe cqe;
	84	struct bnxt_re_qp *qp1_qp;
	85	};
	86
	87	#define BNXT_RE_MIN_MSIX 2
	88	#define BNXT_RE_MAX_MSIX 16
	89	#define BNXT_RE_AEQ_IDX 0
	90	#define BNXT_RE_NQ_IDX 1
	91
	92	struct bnxt_re_dev {
	93	struct ib_device ibdev;
	94	struct list_head list;
	95	unsigned long flags;
	96	#define BNXT_RE_FLAG_NETDEV_REGISTERED 0
	97	#define BNXT_RE_FLAG_IBDEV_REGISTERED 1
	98	#define BNXT_RE_FLAG_GOT_MSIX 2
	99	#define BNXT_RE_FLAG_RCFW_CHANNEL_EN 8
	100	#define BNXT_RE_FLAG_QOS_WORK_REG 16
	101	struct net_device *netdev;
	102	unsigned int version, major, minor;
	103	struct bnxt_en_dev *en_dev;
	104	struct bnxt_msix_entry msix_entries[BNXT_RE_MAX_MSIX];
	105	int num_msix;
	106
	107	int id;
	108
	109	struct delayed_work worker;
	110	u8 cur_prio_map;
	111
	112	/* FP Notification Queue (CQ & SRQ) */
	113	struct tasklet_struct nq_task;
	114
	115	/* RCFW Channel */
	116	struct bnxt_qplib_rcfw rcfw;
	117
	118	/* NQ */
	119	struct bnxt_qplib_nq nq;
	120
	121	/* Device Resources */
	122	struct bnxt_qplib_dev_attr dev_attr;
	123	struct bnxt_qplib_ctx qplib_ctx;
	124	struct bnxt_qplib_res qplib_res;
	125	struct bnxt_qplib_dpi dpi_privileged;
	126
	127	atomic_t qp_count;
	128	struct mutex qp_lock; /* protect qp list */
	129	struct list_head qp_list;
	130
	131	atomic_t cq_count;
	132	atomic_t srq_count;
	133	atomic_t mr_count;
	134	atomic_t mw_count;
	135	/* Max of 2 lossless traffic class supported per port */
136	u16 cosq[2];
137
138	/* QP for for handling QP1 packets */
139	u32 sqp_id;
140	struct bnxt_re_qp *qp1_sqp;
141	struct bnxt_re_ah *sqp_ah;
142	struct bnxt_re_sqp_entries sqp_tbl[1024];
143	};
144
145	#define to_bnxt_re_dev(ptr, member) \
146	container_of((ptr), struct bnxt_re_dev, member)
147
148	#define BNXT_RE_ROCE_V1_PACKET 0
149	#define BNXT_RE_ROCEV2_IPV4_PACKET 2
150	#define BNXT_RE_ROCEV2_IPV6_PACKET 3
151
152	static inline struct device rdev_to_dev(struct bnxt_re_dev rdev)
153	{
154	if (rdev)
155	return &rdev->ibdev.dev;
156	return NULL;
157	}
158
159	#endif