diff options
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnge/bnge_rmem.h')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnge/bnge_rmem.h | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_rmem.h b/drivers/net/ethernet/broadcom/bnge/bnge_rmem.h new file mode 100644 index 000000000000..300f1d8268ef --- /dev/null +++ b/drivers/net/ethernet/broadcom/bnge/bnge_rmem.h @@ -0,0 +1,188 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2025 Broadcom */ + +#ifndef _BNGE_RMEM_H_ +#define _BNGE_RMEM_H_ + +struct bnge_ctx_mem_type; +struct bnge_dev; + +#define PTU_PTE_VALID 0x1UL +#define PTU_PTE_LAST 0x2UL +#define PTU_PTE_NEXT_TO_LAST 0x4UL + +struct bnge_ring_mem_info { + /* Number of pages to next level */ + int nr_pages; + int page_size; + u16 flags; +#define BNGE_RMEM_VALID_PTE_FLAG 1 +#define BNGE_RMEM_RING_PTE_FLAG 2 +#define BNGE_RMEM_USE_FULL_PAGE_FLAG 4 + + u16 depth; + + void **pg_arr; + dma_addr_t *dma_arr; + + __le64 *pg_tbl; + dma_addr_t dma_pg_tbl; + + int vmem_size; + void **vmem; + + struct bnge_ctx_mem_type *ctx_mem; +}; + +/* The hardware supports certain page sizes. + * Use the supported page sizes to allocate the rings. + */ +#if (PAGE_SHIFT < 12) +#define BNGE_PAGE_SHIFT 12 +#elif (PAGE_SHIFT <= 13) +#define BNGE_PAGE_SHIFT PAGE_SHIFT +#elif (PAGE_SHIFT < 16) +#define BNGE_PAGE_SHIFT 13 +#else +#define BNGE_PAGE_SHIFT 16 +#endif +#define BNGE_PAGE_SIZE (1 << BNGE_PAGE_SHIFT) +/* The RXBD length is 16-bit so we can only support page sizes < 64K */ +#if (PAGE_SHIFT > 15) +#define BNGE_RX_PAGE_SHIFT 15 +#else +#define BNGE_RX_PAGE_SHIFT PAGE_SHIFT +#endif +#define MAX_CTX_PAGES (BNGE_PAGE_SIZE / 8) +#define MAX_CTX_TOTAL_PAGES (MAX_CTX_PAGES * MAX_CTX_PAGES) + +struct bnge_ctx_pg_info { + u32 entries; + u32 nr_pages; + void *ctx_pg_arr[MAX_CTX_PAGES]; + dma_addr_t ctx_dma_arr[MAX_CTX_PAGES]; + struct bnge_ring_mem_info ring_mem; + struct bnge_ctx_pg_info **ctx_pg_tbl; +}; + +#define BNGE_MAX_TQM_SP_RINGS 1 +#define BNGE_MAX_TQM_FP_RINGS 8 +#define BNGE_MAX_TQM_RINGS \ + (BNGE_MAX_TQM_SP_RINGS + BNGE_MAX_TQM_FP_RINGS) +#define BNGE_BACKING_STORE_CFG_LEGACY_LEN 256 +#define BNGE_SET_CTX_PAGE_ATTR(attr) \ +do { \ + if (BNGE_PAGE_SIZE == 0x2000) \ + attr = FUNC_BACKING_STORE_CFG_REQ_SRQ_PG_SIZE_PG_8K; \ + else if (BNGE_PAGE_SIZE == 0x10000) \ + attr = FUNC_BACKING_STORE_CFG_REQ_QPC_PG_SIZE_PG_64K; \ + else \ + attr = FUNC_BACKING_STORE_CFG_REQ_QPC_PG_SIZE_PG_4K; \ +} while (0) + +#define BNGE_CTX_MRAV_AV_SPLIT_ENTRY 0 + +#define BNGE_CTX_QP \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_QP +#define BNGE_CTX_SRQ \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_SRQ +#define BNGE_CTX_CQ \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_CQ +#define BNGE_CTX_VNIC \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_VNIC +#define BNGE_CTX_STAT \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_STAT +#define BNGE_CTX_STQM \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_SP_TQM_RING +#define BNGE_CTX_FTQM \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_FP_TQM_RING +#define BNGE_CTX_MRAV \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_MRAV +#define BNGE_CTX_TIM \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_TIM +#define BNGE_CTX_TCK \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_TX_CK +#define BNGE_CTX_RCK \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_RX_CK +#define BNGE_CTX_MTQM \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_MP_TQM_RING +#define BNGE_CTX_SQDBS \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_SQ_DB_SHADOW +#define BNGE_CTX_RQDBS \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_RQ_DB_SHADOW +#define BNGE_CTX_SRQDBS \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_SRQ_DB_SHADOW +#define BNGE_CTX_CQDBS \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_CQ_DB_SHADOW +#define BNGE_CTX_SRT_TRACE \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_SRT_TRACE +#define BNGE_CTX_SRT2_TRACE \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_SRT2_TRACE +#define BNGE_CTX_CRT_TRACE \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_CRT_TRACE +#define BNGE_CTX_CRT2_TRACE \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_CRT2_TRACE +#define BNGE_CTX_RIGP0_TRACE \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_RIGP0_TRACE +#define BNGE_CTX_L2_HWRM_TRACE \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_L2_HWRM_TRACE +#define BNGE_CTX_ROCE_HWRM_TRACE \ + FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_ROCE_HWRM_TRACE + +#define BNGE_CTX_MAX (BNGE_CTX_TIM + 1) +#define BNGE_CTX_L2_MAX (BNGE_CTX_FTQM + 1) +#define BNGE_CTX_INV ((u16)-1) + +#define BNGE_CTX_V2_MAX \ + (FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_ROCE_HWRM_TRACE + 1) + +#define BNGE_BS_CFG_ALL_DONE \ + FUNC_BACKING_STORE_CFG_V2_REQ_FLAGS_BS_CFG_ALL_DONE + +struct bnge_ctx_mem_type { + u16 type; + u16 entry_size; + u32 flags; +#define BNGE_CTX_MEM_TYPE_VALID \ + FUNC_BACKING_STORE_QCAPS_V2_RESP_FLAGS_TYPE_VALID + u32 instance_bmap; + u8 init_value; + u8 entry_multiple; + u16 init_offset; +#define BNGE_CTX_INIT_INVALID_OFFSET 0xffff + u32 max_entries; + u32 min_entries; + u8 last:1; + u8 split_entry_cnt; +#define BNGE_MAX_SPLIT_ENTRY 4 + union { + struct { + u32 qp_l2_entries; + u32 qp_qp1_entries; + u32 qp_fast_qpmd_entries; + }; + u32 srq_l2_entries; + u32 cq_l2_entries; + u32 vnic_entries; + struct { + u32 mrav_av_entries; + u32 mrav_num_entries_units; + }; + u32 split[BNGE_MAX_SPLIT_ENTRY]; + }; + struct bnge_ctx_pg_info *pg_info; +}; + +struct bnge_ctx_mem_info { + u8 tqm_fp_rings_count; + u32 flags; +#define BNGE_CTX_FLAG_INITED 0x01 + struct bnge_ctx_mem_type ctx_arr[BNGE_CTX_V2_MAX]; +}; + +int bnge_alloc_ring(struct bnge_dev *bd, struct bnge_ring_mem_info *rmem); +void bnge_free_ring(struct bnge_dev *bd, struct bnge_ring_mem_info *rmem); +int bnge_alloc_ctx_mem(struct bnge_dev *bd); +void bnge_free_ctx_mem(struct bnge_dev *bd); + +#endif /* _BNGE_RMEM_H_ */ |