453 lines
12 KiB
C
453 lines
12 KiB
C
/*
|
|
* 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;
|
|
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_pkey_tbl {
|
|
u16 *tbl;
|
|
u16 max;
|
|
u16 active;
|
|
};
|
|
|
|
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 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_pkey_tbl pkey_tbl;
|
|
struct bnxt_qplib_dpi_tbl dpi_tbl;
|
|
bool prio;
|
|
};
|
|
|
|
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);
|
|
void bnxt_qplib_get_guid(u8 *dev_addr, u8 *guid);
|
|
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);
|
|
}
|
|
#endif /* __BNXT_QPLIB_RES_H__ */
|