Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 452 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/bnxt_re/qplib_res.h b/drivers/infiniband/hw/bnxt_re/qplib_res.h
new file mode 100644
index 000000000..982e2c96d
--- /dev/null
+++ b/drivers/infiniband/hw/bnxt_re/qplib_res.h
@@ -0,0 +1,452 @@
+/*
+ * 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: QPLib resource manager (header)
+ */
+
+#ifndef __BNXT_QPLIB_RES_H__
+#define __BNXT_QPLIB_RES_H__
+
+extern const struct bnxt_qplib_gid bnxt_qplib_gid_zero;
+
+#define CHIP_NUM_57508		0x1750
+#define CHIP_NUM_57504		0x1751
+#define CHIP_NUM_57502		0x1752
+
+struct bnxt_qplib_drv_modes {
+	u8	wqe_mode;
+	/* Other modes to follow here */
+};
+
+struct bnxt_qplib_chip_ctx {
+	u16	chip_num;
+	u8	chip_rev;
+	u8	chip_metal;
+	u16	hw_stats_size;
+	struct bnxt_qplib_drv_modes modes;
+};
+
+#define PTR_CNT_PER_PG		(PAGE_SIZE / sizeof(void *))
+#define PTR_MAX_IDX_PER_PG	(PTR_CNT_PER_PG - 1)
+#define PTR_PG(x)		(((x) & ~PTR_MAX_IDX_PER_PG) / PTR_CNT_PER_PG)
+#define PTR_IDX(x)		((x) & PTR_MAX_IDX_PER_PG)
+
+#define HWQ_CMP(idx, hwq)	((idx) & ((hwq)->max_elements - 1))
+
+#define HWQ_FREE_SLOTS(hwq)	(hwq->max_elements - \
+				((HWQ_CMP(hwq->prod, hwq)\
+				- HWQ_CMP(hwq->cons, hwq))\
+				& (hwq->max_elements - 1)))
+enum bnxt_qplib_hwq_type {
+	HWQ_TYPE_CTX,
+	HWQ_TYPE_QUEUE,
+	HWQ_TYPE_L2_CMPL,
+	HWQ_TYPE_MR
+};
+
+#define MAX_PBL_LVL_0_PGS		1
+#define MAX_PBL_LVL_1_PGS		512
+#define MAX_PBL_LVL_1_PGS_SHIFT		9
+#define MAX_PBL_LVL_1_PGS_FOR_LVL_2	256
+#define MAX_PBL_LVL_2_PGS		(256 * 512)
+#define MAX_PDL_LVL_SHIFT               9
+
+enum bnxt_qplib_pbl_lvl {
+	PBL_LVL_0,
+	PBL_LVL_1,
+	PBL_LVL_2,
+	PBL_LVL_MAX
+};
+
+#define ROCE_PG_SIZE_4K		(4 * 1024)
+#define ROCE_PG_SIZE_8K		(8 * 1024)
+#define ROCE_PG_SIZE_64K	(64 * 1024)
+#define ROCE_PG_SIZE_2M		(2 * 1024 * 1024)
+#define ROCE_PG_SIZE_8M		(8 * 1024 * 1024)
+#define ROCE_PG_SIZE_1G		(1024 * 1024 * 1024)
+
+enum bnxt_qplib_hwrm_pg_size {
+	BNXT_QPLIB_HWRM_PG_SIZE_4K	= 0,
+	BNXT_QPLIB_HWRM_PG_SIZE_8K	= 1,
+	BNXT_QPLIB_HWRM_PG_SIZE_64K	= 2,
+	BNXT_QPLIB_HWRM_PG_SIZE_2M	= 3,
+	BNXT_QPLIB_HWRM_PG_SIZE_8M	= 4,
+	BNXT_QPLIB_HWRM_PG_SIZE_1G	= 5,
+};
+
+struct bnxt_qplib_reg_desc {
+	u8		bar_id;
+	resource_size_t	bar_base;
+	void __iomem	*bar_reg;
+	size_t		len;
+};
+
+struct bnxt_qplib_pbl {
+	u32				pg_count;
+	u32				pg_size;
+	void				**pg_arr;
+	dma_addr_t			*pg_map_arr;
+};
+
+struct bnxt_qplib_sg_info {
+	struct ib_umem			*umem;
+	u32				npages;
+	u32				pgshft;
+	u32				pgsize;
+	bool				nopte;
+};
+
+struct bnxt_qplib_hwq_attr {
+	struct bnxt_qplib_res		*res;
+	struct bnxt_qplib_sg_info	*sginfo;
+	enum bnxt_qplib_hwq_type	type;
+	u32				depth;
+	u32				stride;
+	u32				aux_stride;
+	u32				aux_depth;
+};
+
+struct bnxt_qplib_hwq {
+	struct pci_dev			*pdev;
+	/* lock to protect qplib_hwq */
+	spinlock_t			lock;
+	struct bnxt_qplib_pbl		pbl[PBL_LVL_MAX + 1];
+	enum bnxt_qplib_pbl_lvl		level;		/* 0, 1, or 2 */
+	/* ptr for easy access to the PBL entries */
+	void				**pbl_ptr;
+	/* ptr for easy access to the dma_addr */
+	dma_addr_t			*pbl_dma_ptr;
+	u32				max_elements;
+	u32				depth;
+	u16				element_size;	/* Size of each entry */
+	u16				qe_ppg;	/* queue entry per page */
+
+	u32				prod;		/* raw */
+	u32				cons;		/* raw */
+	u8				cp_bit;
+	u8				is_user;
+	u64				*pad_pg;
+	u32				pad_stride;
+	u32				pad_pgofft;
+};
+
+struct bnxt_qplib_db_info {
+	void __iomem		*db;
+	void __iomem		*priv_db;
+	struct bnxt_qplib_hwq	*hwq;
+	u32			xid;
+	u32			max_slot;
+};
+
+/* Tables */
+struct bnxt_qplib_pd_tbl {
+	unsigned long			*tbl;
+	u32				max;
+};
+
+struct bnxt_qplib_sgid_tbl {
+	struct bnxt_qplib_gid_info	*tbl;
+	u16				*hw_id;
+	u16				max;
+	u16				active;
+	void				*ctx;
+	u8				*vlan;
+};
+
+struct bnxt_qplib_dpi {
+	u32				dpi;
+	void __iomem			*dbr;
+	u64				umdbr;
+};
+
+struct bnxt_qplib_dpi_tbl {
+	void				**app_tbl;
+	unsigned long			*tbl;
+	u16				max;
+	void __iomem			*dbr_bar_reg_iomem;
+	u64				unmapped_dbr;
+};
+
+struct bnxt_qplib_stats {
+	dma_addr_t			dma_map;
+	void				*dma;
+	u32				size;
+	u32				fw_id;
+};
+
+struct bnxt_qplib_vf_res {
+	u32 max_qp_per_vf;
+	u32 max_mrw_per_vf;
+	u32 max_srq_per_vf;
+	u32 max_cq_per_vf;
+	u32 max_gid_per_vf;
+};
+
+#define BNXT_QPLIB_MAX_QP_CTX_ENTRY_SIZE	448
+#define BNXT_QPLIB_MAX_SRQ_CTX_ENTRY_SIZE	64
+#define BNXT_QPLIB_MAX_CQ_CTX_ENTRY_SIZE	64
+#define BNXT_QPLIB_MAX_MRW_CTX_ENTRY_SIZE	128
+
+#define MAX_TQM_ALLOC_REQ               48
+#define MAX_TQM_ALLOC_BLK_SIZE          8
+struct bnxt_qplib_tqm_ctx {
+	struct bnxt_qplib_hwq           pde;
+	u8                              pde_level; /* Original level */
+	struct bnxt_qplib_hwq           qtbl[MAX_TQM_ALLOC_REQ];
+	u8                              qcount[MAX_TQM_ALLOC_REQ];
+};
+
+struct bnxt_qplib_ctx {
+	u32				qpc_count;
+	struct bnxt_qplib_hwq		qpc_tbl;
+	u32				mrw_count;
+	struct bnxt_qplib_hwq		mrw_tbl;
+	u32				srqc_count;
+	struct bnxt_qplib_hwq		srqc_tbl;
+	u32				cq_count;
+	struct bnxt_qplib_hwq		cq_tbl;
+	struct bnxt_qplib_hwq		tim_tbl;
+	struct bnxt_qplib_tqm_ctx	tqm_ctx;
+	struct bnxt_qplib_stats		stats;
+	struct bnxt_qplib_vf_res	vf_res;
+	u64				hwrm_intf_ver;
+};
+
+struct bnxt_qplib_res {
+	struct pci_dev			*pdev;
+	struct bnxt_qplib_chip_ctx	*cctx;
+	struct bnxt_qplib_dev_attr      *dattr;
+	struct net_device		*netdev;
+	struct bnxt_qplib_rcfw		*rcfw;
+	struct bnxt_qplib_pd_tbl	pd_tbl;
+	struct bnxt_qplib_sgid_tbl	sgid_tbl;
+	struct bnxt_qplib_dpi_tbl	dpi_tbl;
+	bool				prio;
+	bool                            is_vf;
+};
+
+static inline bool bnxt_qplib_is_chip_gen_p5(struct bnxt_qplib_chip_ctx *cctx)
+{
+	return (cctx->chip_num == CHIP_NUM_57508 ||
+		cctx->chip_num == CHIP_NUM_57504 ||
+		cctx->chip_num == CHIP_NUM_57502);
+}
+
+static inline u8 bnxt_qplib_get_hwq_type(struct bnxt_qplib_res *res)
+{
+	return bnxt_qplib_is_chip_gen_p5(res->cctx) ?
+					HWQ_TYPE_QUEUE : HWQ_TYPE_L2_CMPL;
+}
+
+static inline u8 bnxt_qplib_get_ring_type(struct bnxt_qplib_chip_ctx *cctx)
+{
+	return bnxt_qplib_is_chip_gen_p5(cctx) ?
+	       RING_ALLOC_REQ_RING_TYPE_NQ :
+	       RING_ALLOC_REQ_RING_TYPE_ROCE_CMPL;
+}
+
+static inline u8 bnxt_qplib_base_pg_size(struct bnxt_qplib_hwq *hwq)
+{
+	u8 pg_size = BNXT_QPLIB_HWRM_PG_SIZE_4K;
+	struct bnxt_qplib_pbl *pbl;
+
+	pbl = &hwq->pbl[PBL_LVL_0];
+	switch (pbl->pg_size) {
+	case ROCE_PG_SIZE_4K:
+		pg_size = BNXT_QPLIB_HWRM_PG_SIZE_4K;
+		break;
+	case ROCE_PG_SIZE_8K:
+		pg_size = BNXT_QPLIB_HWRM_PG_SIZE_8K;
+		break;
+	case ROCE_PG_SIZE_64K:
+		pg_size = BNXT_QPLIB_HWRM_PG_SIZE_64K;
+		break;
+	case ROCE_PG_SIZE_2M:
+		pg_size = BNXT_QPLIB_HWRM_PG_SIZE_2M;
+		break;
+	case ROCE_PG_SIZE_8M:
+		pg_size = BNXT_QPLIB_HWRM_PG_SIZE_8M;
+		break;
+	case ROCE_PG_SIZE_1G:
+		pg_size = BNXT_QPLIB_HWRM_PG_SIZE_1G;
+		break;
+	default:
+		break;
+	}
+
+	return pg_size;
+}
+
+static inline void *bnxt_qplib_get_qe(struct bnxt_qplib_hwq *hwq,
+				      u32 indx, u64 *pg)
+{
+	u32 pg_num, pg_idx;
+
+	pg_num = (indx / hwq->qe_ppg);
+	pg_idx = (indx % hwq->qe_ppg);
+	if (pg)
+		*pg = (u64)&hwq->pbl_ptr[pg_num];
+	return (void *)(hwq->pbl_ptr[pg_num] + hwq->element_size * pg_idx);
+}
+
+static inline void *bnxt_qplib_get_prod_qe(struct bnxt_qplib_hwq *hwq, u32 idx)
+{
+	idx += hwq->prod;
+	if (idx >= hwq->depth)
+		idx -= hwq->depth;
+	return bnxt_qplib_get_qe(hwq, idx, NULL);
+}
+
+#define to_bnxt_qplib(ptr, type, member)	\
+	container_of(ptr, type, member)
+
+struct bnxt_qplib_pd;
+struct bnxt_qplib_dev_attr;
+
+void bnxt_qplib_free_hwq(struct bnxt_qplib_res *res,
+			 struct bnxt_qplib_hwq *hwq);
+int bnxt_qplib_alloc_init_hwq(struct bnxt_qplib_hwq *hwq,
+			      struct bnxt_qplib_hwq_attr *hwq_attr);
+int bnxt_qplib_alloc_pd(struct bnxt_qplib_pd_tbl *pd_tbl,
+			struct bnxt_qplib_pd *pd);
+int bnxt_qplib_dealloc_pd(struct bnxt_qplib_res *res,
+			  struct bnxt_qplib_pd_tbl *pd_tbl,
+			  struct bnxt_qplib_pd *pd);
+int bnxt_qplib_alloc_dpi(struct bnxt_qplib_dpi_tbl *dpit,
+			 struct bnxt_qplib_dpi     *dpi,
+			 void                      *app);
+int bnxt_qplib_dealloc_dpi(struct bnxt_qplib_res *res,
+			   struct bnxt_qplib_dpi_tbl *dpi_tbl,
+			   struct bnxt_qplib_dpi *dpi);
+void bnxt_qplib_cleanup_res(struct bnxt_qplib_res *res);
+int bnxt_qplib_init_res(struct bnxt_qplib_res *res);
+void bnxt_qplib_free_res(struct bnxt_qplib_res *res);
+int bnxt_qplib_alloc_res(struct bnxt_qplib_res *res, struct pci_dev *pdev,
+			 struct net_device *netdev,
+			 struct bnxt_qplib_dev_attr *dev_attr);
+void bnxt_qplib_free_ctx(struct bnxt_qplib_res *res,
+			 struct bnxt_qplib_ctx *ctx);
+int bnxt_qplib_alloc_ctx(struct bnxt_qplib_res *res,
+			 struct bnxt_qplib_ctx *ctx,
+			 bool virt_fn, bool is_p5);
+int bnxt_qplib_determine_atomics(struct pci_dev *dev);
+
+static inline void bnxt_qplib_hwq_incr_prod(struct bnxt_qplib_hwq *hwq, u32 cnt)
+{
+	hwq->prod = (hwq->prod + cnt) % hwq->depth;
+}
+
+static inline void bnxt_qplib_hwq_incr_cons(struct bnxt_qplib_hwq *hwq,
+					    u32 cnt)
+{
+	hwq->cons = (hwq->cons + cnt) % hwq->depth;
+}
+
+static inline void bnxt_qplib_ring_db32(struct bnxt_qplib_db_info *info,
+					bool arm)
+{
+	u32 key;
+
+	key = info->hwq->cons & (info->hwq->max_elements - 1);
+	key |= (CMPL_DOORBELL_IDX_VALID |
+		(CMPL_DOORBELL_KEY_CMPL & CMPL_DOORBELL_KEY_MASK));
+	if (!arm)
+		key |= CMPL_DOORBELL_MASK;
+	writel(key, info->db);
+}
+
+static inline void bnxt_qplib_ring_db(struct bnxt_qplib_db_info *info,
+				      u32 type)
+{
+	u64 key = 0;
+
+	key = (info->xid & DBC_DBC_XID_MASK) | DBC_DBC_PATH_ROCE | type;
+	key <<= 32;
+	key |= (info->hwq->cons & (info->hwq->max_elements - 1)) &
+		DBC_DBC_INDEX_MASK;
+	writeq(key, info->db);
+}
+
+static inline void bnxt_qplib_ring_prod_db(struct bnxt_qplib_db_info *info,
+					   u32 type)
+{
+	u64 key = 0;
+
+	key = (info->xid & DBC_DBC_XID_MASK) | DBC_DBC_PATH_ROCE | type;
+	key <<= 32;
+	key |= ((info->hwq->prod / info->max_slot)) & DBC_DBC_INDEX_MASK;
+	writeq(key, info->db);
+}
+
+static inline void bnxt_qplib_armen_db(struct bnxt_qplib_db_info *info,
+				       u32 type)
+{
+	u64 key = 0;
+
+	key = (info->xid & DBC_DBC_XID_MASK) | DBC_DBC_PATH_ROCE | type;
+	key <<= 32;
+	writeq(key, info->priv_db);
+}
+
+static inline void bnxt_qplib_srq_arm_db(struct bnxt_qplib_db_info *info,
+					 u32 th)
+{
+	u64 key = 0;
+
+	key = (info->xid & DBC_DBC_XID_MASK) | DBC_DBC_PATH_ROCE | th;
+	key <<= 32;
+	key |=  th & DBC_DBC_INDEX_MASK;
+	writeq(key, info->priv_db);
+}
+
+static inline void bnxt_qplib_ring_nq_db(struct bnxt_qplib_db_info *info,
+					 struct bnxt_qplib_chip_ctx *cctx,
+					 bool arm)
+{
+	u32 type;
+
+	type = arm ? DBC_DBC_TYPE_NQ_ARM : DBC_DBC_TYPE_NQ;
+	if (bnxt_qplib_is_chip_gen_p5(cctx))
+		bnxt_qplib_ring_db(info, type);
+	else
+		bnxt_qplib_ring_db32(info, arm);
+}
+
+static inline bool _is_ext_stats_supported(u16 dev_cap_flags)
+{
+	return dev_cap_flags &
+		CREQ_QUERY_FUNC_RESP_SB_EXT_STATS;
+}
+#endif /* __BNXT_QPLIB_RES_H__ */