[linux-2.6-block.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_SHIFT_4K		(12)
#define BNXT_RE_PAGE_SHIFT_8K		(13)
#define BNXT_RE_PAGE_SHIFT_64K		(16)
#define BNXT_RE_PAGE_SHIFT_2M		(21)
#define BNXT_RE_PAGE_SHIFT_8M		(23)
#define BNXT_RE_PAGE_SHIFT_1G		(30)

#define BNXT_RE_PAGE_SIZE_4K		BIT(BNXT_RE_PAGE_SHIFT_4K)
#define BNXT_RE_PAGE_SIZE_8K		BIT(BNXT_RE_PAGE_SHIFT_8K)
#define BNXT_RE_PAGE_SIZE_64K		BIT(BNXT_RE_PAGE_SHIFT_64K)
#define BNXT_RE_PAGE_SIZE_2M		BIT(BNXT_RE_PAGE_SHIFT_2M)
#define BNXT_RE_PAGE_SIZE_8M		BIT(BNXT_RE_PAGE_SHIFT_8M)
#define BNXT_RE_PAGE_SIZE_1G		BIT(BNXT_RE_PAGE_SHIFT_1G)

#define BNXT_RE_MAX_MR_SIZE_LOW		BIT_ULL(BNXT_RE_PAGE_SHIFT_1G)
#define BNXT_RE_MAX_MR_SIZE_HIGH	BIT_ULL(39)
#define BNXT_RE_MAX_MR_SIZE		BNXT_RE_MAX_MR_SIZE_HIGH

#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_MAX_MRW_COUNT_64K	(64 * 1024)
#define BNXT_RE_MAX_MRW_COUNT_256K	(256 * 1024)

/* Number of MRs to reserve for PF, leaving remainder for VFs */
#define BNXT_RE_RESVD_MR_FOR_PF         (32 * 1024)
#define BNXT_RE_MAX_GID_PER_VF          128

/*
 * Percentage of resources of each type reserved for PF.
 * Remaining resources are divided equally among VFs.
 * [0, 100]
 */
#define BNXT_RE_PCT_RSVD_FOR_PF         50

#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		9
#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_HAVE_L2_REF		3
#define BNXT_RE_FLAG_RCFW_CHANNEL_EN		4
#define BNXT_RE_FLAG_QOS_WORK_REG		5
#define BNXT_RE_FLAG_ISSUE_ROCE_STATS          29
	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;
	u8				active_speed;
	u8				active_width;

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

	/* RCFW Channel */
	struct bnxt_qplib_rcfw		rcfw;

	/* NQ */
	struct bnxt_qplib_nq		nq[BNXT_RE_MAX_MSIX];

	/* 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;
	atomic_t			sched_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];
	atomic_t nq_alloc_cnt;
	u32 is_virtfn;
	u32 num_vfs;
	struct bnxt_qplib_roce_stats	stats;
};

#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"
872f3578 SK	46	#define BNXT_RE_PAGE_SHIFT_4K (12)
	47	#define BNXT_RE_PAGE_SHIFT_8K (13)
	48	#define BNXT_RE_PAGE_SHIFT_64K (16)
	49	#define BNXT_RE_PAGE_SHIFT_2M (21)
	50	#define BNXT_RE_PAGE_SHIFT_8M (23)
	51	#define BNXT_RE_PAGE_SHIFT_1G (30)
1ac5a404	52
872f3578 SK	53	#define BNXT_RE_PAGE_SIZE_4K BIT(BNXT_RE_PAGE_SHIFT_4K)
	54	#define BNXT_RE_PAGE_SIZE_8K BIT(BNXT_RE_PAGE_SHIFT_8K)
	55	#define BNXT_RE_PAGE_SIZE_64K BIT(BNXT_RE_PAGE_SHIFT_64K)
	56	#define BNXT_RE_PAGE_SIZE_2M BIT(BNXT_RE_PAGE_SHIFT_2M)
	57	#define BNXT_RE_PAGE_SIZE_8M BIT(BNXT_RE_PAGE_SHIFT_8M)
	58	#define BNXT_RE_PAGE_SIZE_1G BIT(BNXT_RE_PAGE_SHIFT_1G)
1ac5a404	59
bd8602ca AB	60	#define BNXT_RE_MAX_MR_SIZE_LOW BIT_ULL(BNXT_RE_PAGE_SHIFT_1G)
bd8602ca AB	61	#define BNXT_RE_MAX_MR_SIZE_HIGH BIT_ULL(39)
872f3578	62	#define BNXT_RE_MAX_MR_SIZE BNXT_RE_MAX_MR_SIZE_HIGH
58d4a671	63
1ac5a404 SX	64	#define BNXT_RE_MAX_QPC_COUNT (64 * 1024)
	65	#define BNXT_RE_MAX_MRW_COUNT (64 * 1024)
	66	#define BNXT_RE_MAX_SRQC_COUNT (64 * 1024)
	67	#define BNXT_RE_MAX_CQ_COUNT (64 * 1024)
ccd9d0d3 SX	68	#define BNXT_RE_MAX_MRW_COUNT_64K (64 * 1024)
	69	#define BNXT_RE_MAX_MRW_COUNT_256K (256 * 1024)
	70
	71	/* Number of MRs to reserve for PF, leaving remainder for VFs */
	72	#define BNXT_RE_RESVD_MR_FOR_PF (32 * 1024)
	73	#define BNXT_RE_MAX_GID_PER_VF 128
	74
	75	/*
	76	* Percentage of resources of each type reserved for PF.
	77	* Remaining resources are divided equally among VFs.
	78	* [0, 100]
	79	*/
	80	#define BNXT_RE_PCT_RSVD_FOR_PF 50
1ac5a404	81
3fb755b3 SK	82	#define BNXT_RE_UD_QP_HW_STALL 0x400000
3fb755b3 SK	83
018cf599 DS	84	#define BNXT_RE_RQ_WQE_THRESHOLD 32
018cf599 DS	85
601577b7 SX	86	/*
	87	* Setting the default ack delay value to 16, which means
	88	* the default timeout is approx. 260ms(4 usec * 2 ^(timeout))
	89	*/
	90
	91	#define BNXT_RE_DEFAULT_ACK_DELAY 16
	92
1ac5a404 SX	93	struct bnxt_re_work {
	94	struct work_struct work;
	95	unsigned long event;
	96	struct bnxt_re_dev *rdev;
	97	struct net_device *vlan_dev;
	98	};
	99
	100	struct bnxt_re_sqp_entries {
	101	struct bnxt_qplib_sge sge;
	102	u64 wrid;
	103	/* For storing the actual qp1 cqe */
	104	struct bnxt_qplib_cqe cqe;
	105	struct bnxt_re_qp *qp1_qp;
	106	};
	107
	108	#define BNXT_RE_MIN_MSIX 2
6a5df91b	109	#define BNXT_RE_MAX_MSIX 9
1ac5a404 SX	110	#define BNXT_RE_AEQ_IDX 0
	111	#define BNXT_RE_NQ_IDX 1
	112
	113	struct bnxt_re_dev {
	114	struct ib_device ibdev;
	115	struct list_head list;
	116	unsigned long flags;
d5917307 SK	117	#define BNXT_RE_FLAG_NETDEV_REGISTERED 0
	118	#define BNXT_RE_FLAG_IBDEV_REGISTERED 1
	119	#define BNXT_RE_FLAG_GOT_MSIX 2
	120	#define BNXT_RE_FLAG_HAVE_L2_REF 3
	121	#define BNXT_RE_FLAG_RCFW_CHANNEL_EN 4
	122	#define BNXT_RE_FLAG_QOS_WORK_REG 5
89f81008	123	#define BNXT_RE_FLAG_ISSUE_ROCE_STATS 29
1ac5a404 SX	124	struct net_device *netdev;
	125	unsigned int version, major, minor;
	126	struct bnxt_en_dev *en_dev;
	127	struct bnxt_msix_entry msix_entries[BNXT_RE_MAX_MSIX];
	128	int num_msix;
	129
	130	int id;
	131
	132	struct delayed_work worker;
	133	u8 cur_prio_map;
74828b12 SK	134	u8 active_speed;
74828b12 SK	135	u8 active_width;
1ac5a404 SX	136
	137	/* FP Notification Queue (CQ & SRQ) */
	138	struct tasklet_struct nq_task;
	139
	140	/* RCFW Channel */
	141	struct bnxt_qplib_rcfw rcfw;
	142
	143	/* NQ */
6a5df91b	144	struct bnxt_qplib_nq nq[BNXT_RE_MAX_MSIX];
1ac5a404 SX	145
	146	/* Device Resources */
	147	struct bnxt_qplib_dev_attr dev_attr;
	148	struct bnxt_qplib_ctx qplib_ctx;
	149	struct bnxt_qplib_res qplib_res;
	150	struct bnxt_qplib_dpi dpi_privileged;
	151
	152	atomic_t qp_count;
	153	struct mutex qp_lock; /* protect qp list */
	154	struct list_head qp_list;
	155
	156	atomic_t cq_count;
	157	atomic_t srq_count;
	158	atomic_t mr_count;
	159	atomic_t mw_count;
7374fbd9	160	atomic_t sched_count;
1ac5a404 SX	161	/* Max of 2 lossless traffic class supported per port */
	162	u16 cosq[2];
	163
	164	/* QP for for handling QP1 packets */
	165	u32 sqp_id;
	166	struct bnxt_re_qp *qp1_sqp;
	167	struct bnxt_re_ah *sqp_ah;
	168	struct bnxt_re_sqp_entries sqp_tbl[1024];
6a5df91b	169	atomic_t nq_alloc_cnt;
ccd9d0d3 SX	170	u32 is_virtfn;
ccd9d0d3 SX	171	u32 num_vfs;
89f81008	172	struct bnxt_qplib_roce_stats stats;
1ac5a404 SX	173	};
	174
	175	#define to_bnxt_re_dev(ptr, member) \
	176	container_of((ptr), struct bnxt_re_dev, member)
	177
	178	#define BNXT_RE_ROCE_V1_PACKET 0
	179	#define BNXT_RE_ROCEV2_IPV4_PACKET 2
	180	#define BNXT_RE_ROCEV2_IPV6_PACKET 3
	181
	182	static inline struct device rdev_to_dev(struct bnxt_re_dev rdev)
	183	{
	184	if (rdev)
	185	return &rdev->ibdev.dev;
	186	return NULL;
	187	}
	188
	189	#endif