diff options
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnge/bnge_netdev.h')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnge/bnge_netdev.h | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h new file mode 100644 index 000000000000..a650d71a58db --- /dev/null +++ b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h @@ -0,0 +1,206 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2025 Broadcom */ + +#ifndef _BNGE_NETDEV_H_ +#define _BNGE_NETDEV_H_ + +#include <linux/bnxt/hsi.h> + +struct tx_bd { + __le32 tx_bd_len_flags_type; + #define TX_BD_TYPE (0x3f << 0) + #define TX_BD_TYPE_SHORT_TX_BD (0x00 << 0) + #define TX_BD_TYPE_LONG_TX_BD (0x10 << 0) + #define TX_BD_FLAGS_PACKET_END (1 << 6) + #define TX_BD_FLAGS_NO_CMPL (1 << 7) + #define TX_BD_FLAGS_BD_CNT (0x1f << 8) + #define TX_BD_FLAGS_BD_CNT_SHIFT 8 + #define TX_BD_FLAGS_LHINT (3 << 13) + #define TX_BD_FLAGS_LHINT_SHIFT 13 + #define TX_BD_FLAGS_LHINT_512_AND_SMALLER (0 << 13) + #define TX_BD_FLAGS_LHINT_512_TO_1023 (1 << 13) + #define TX_BD_FLAGS_LHINT_1024_TO_2047 (2 << 13) + #define TX_BD_FLAGS_LHINT_2048_AND_LARGER (3 << 13) + #define TX_BD_FLAGS_COAL_NOW (1 << 15) + #define TX_BD_LEN (0xffff << 16) + #define TX_BD_LEN_SHIFT 16 + u32 tx_bd_opaque; + __le64 tx_bd_haddr; +} __packed; + +struct rx_bd { + __le32 rx_bd_len_flags_type; + #define RX_BD_TYPE (0x3f << 0) + #define RX_BD_TYPE_RX_PACKET_BD 0x4 + #define RX_BD_TYPE_RX_BUFFER_BD 0x5 + #define RX_BD_TYPE_RX_AGG_BD 0x6 + #define RX_BD_TYPE_16B_BD_SIZE (0 << 4) + #define RX_BD_TYPE_32B_BD_SIZE (1 << 4) + #define RX_BD_TYPE_48B_BD_SIZE (2 << 4) + #define RX_BD_TYPE_64B_BD_SIZE (3 << 4) + #define RX_BD_FLAGS_SOP (1 << 6) + #define RX_BD_FLAGS_EOP (1 << 7) + #define RX_BD_FLAGS_BUFFERS (3 << 8) + #define RX_BD_FLAGS_1_BUFFER_PACKET (0 << 8) + #define RX_BD_FLAGS_2_BUFFER_PACKET (1 << 8) + #define RX_BD_FLAGS_3_BUFFER_PACKET (2 << 8) + #define RX_BD_FLAGS_4_BUFFER_PACKET (3 << 8) + #define RX_BD_LEN (0xffff << 16) + #define RX_BD_LEN_SHIFT 16 + u32 rx_bd_opaque; + __le64 rx_bd_haddr; +}; + +struct tx_cmp { + __le32 tx_cmp_flags_type; + #define CMP_TYPE (0x3f << 0) + #define CMP_TYPE_TX_L2_CMP 0 + #define CMP_TYPE_TX_L2_COAL_CMP 2 + #define CMP_TYPE_TX_L2_PKT_TS_CMP 4 + #define CMP_TYPE_RX_L2_CMP 17 + #define CMP_TYPE_RX_AGG_CMP 18 + #define CMP_TYPE_RX_L2_TPA_START_CMP 19 + #define CMP_TYPE_RX_L2_TPA_END_CMP 21 + #define CMP_TYPE_RX_TPA_AGG_CMP 22 + #define CMP_TYPE_RX_L2_V3_CMP 23 + #define CMP_TYPE_RX_L2_TPA_START_V3_CMP 25 + #define CMP_TYPE_STATUS_CMP 32 + #define CMP_TYPE_REMOTE_DRIVER_REQ 34 + #define CMP_TYPE_REMOTE_DRIVER_RESP 36 + #define CMP_TYPE_ERROR_STATUS 48 + #define CMPL_BASE_TYPE_STAT_EJECT 0x1aUL + #define CMPL_BASE_TYPE_HWRM_DONE 0x20UL + #define CMPL_BASE_TYPE_HWRM_FWD_REQ 0x22UL + #define CMPL_BASE_TYPE_HWRM_FWD_RESP 0x24UL + #define CMPL_BASE_TYPE_HWRM_ASYNC_EVENT 0x2eUL + #define TX_CMP_FLAGS_ERROR (1 << 6) + #define TX_CMP_FLAGS_PUSH (1 << 7) + u32 tx_cmp_opaque; + __le32 tx_cmp_errors_v; + #define TX_CMP_V (1 << 0) + #define TX_CMP_ERRORS_BUFFER_ERROR (7 << 1) + #define TX_CMP_ERRORS_BUFFER_ERROR_NO_ERROR 0 + #define TX_CMP_ERRORS_BUFFER_ERROR_BAD_FORMAT 2 + #define TX_CMP_ERRORS_BUFFER_ERROR_INVALID_STAG 4 + #define TX_CMP_ERRORS_BUFFER_ERROR_STAG_BOUNDS 5 + #define TX_CMP_ERRORS_ZERO_LENGTH_PKT (1 << 4) + #define TX_CMP_ERRORS_EXCESSIVE_BD_LEN (1 << 5) + #define TX_CMP_ERRORS_DMA_ERROR (1 << 6) + #define TX_CMP_ERRORS_HINT_TOO_SHORT (1 << 7) + __le32 sq_cons_idx; + #define TX_CMP_SQ_CONS_IDX_MASK 0x00ffffff +}; + +struct bnge_sw_tx_bd { + struct sk_buff *skb; + DEFINE_DMA_UNMAP_ADDR(mapping); + DEFINE_DMA_UNMAP_LEN(len); + struct page *page; + u8 is_ts_pkt; + u8 is_push; + u8 action; + unsigned short nr_frags; + union { + u16 rx_prod; + u16 txts_prod; + }; +}; + +struct bnge_sw_rx_bd { + void *data; + u8 *data_ptr; + dma_addr_t mapping; +}; + +struct bnge_sw_rx_agg_bd { + struct page *page; + unsigned int offset; + dma_addr_t mapping; +}; + +#define BNGE_RX_COPY_THRESH 256 + +#define BNGE_HW_FEATURE_VLAN_ALL_RX \ + (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX) +#define BNGE_HW_FEATURE_VLAN_ALL_TX \ + (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX) + +enum { + BNGE_NET_EN_GRO = BIT(0), + BNGE_NET_EN_LRO = BIT(1), + BNGE_NET_EN_JUMBO = BIT(2), +}; + +#define BNGE_NET_EN_TPA (BNGE_NET_EN_GRO | BNGE_NET_EN_LRO) + +struct bnge_net { + struct bnge_dev *bd; + struct net_device *netdev; + + u32 priv_flags; + + u32 rx_ring_size; + u32 rx_buf_size; + u32 rx_buf_use_size; /* usable size */ + u32 rx_agg_ring_size; + u32 rx_copy_thresh; + u32 rx_ring_mask; + u32 rx_agg_ring_mask; + u16 rx_nr_pages; + u16 rx_agg_nr_pages; + + u32 tx_ring_size; + u32 tx_ring_mask; + u16 tx_nr_pages; + + /* NQs and Completion rings */ + u32 cp_ring_size; + u32 cp_ring_mask; + u32 cp_bit; + u16 cp_nr_pages; + +#define BNGE_L2_FLTR_HASH_SIZE 32 +#define BNGE_L2_FLTR_HASH_MASK (BNGE_L2_FLTR_HASH_SIZE - 1) + struct hlist_head l2_fltr_hash_tbl[BNGE_L2_FLTR_HASH_SIZE]; + u32 hash_seed; + u64 toeplitz_prefix; +}; + +#define BNGE_DEFAULT_RX_RING_SIZE 511 +#define BNGE_DEFAULT_TX_RING_SIZE 511 + +int bnge_netdev_alloc(struct bnge_dev *bd, int max_irqs); +void bnge_netdev_free(struct bnge_dev *bd); +void bnge_set_ring_params(struct bnge_dev *bd); + +#if (BNGE_PAGE_SHIFT == 16) +#define MAX_RX_PAGES_AGG_ENA 1 +#define MAX_RX_PAGES 4 +#define MAX_RX_AGG_PAGES 4 +#define MAX_TX_PAGES 1 +#define MAX_CP_PAGES 16 +#else +#define MAX_RX_PAGES_AGG_ENA 8 +#define MAX_RX_PAGES 32 +#define MAX_RX_AGG_PAGES 32 +#define MAX_TX_PAGES 8 +#define MAX_CP_PAGES 128 +#endif + +#define BNGE_RX_PAGE_SIZE (1 << BNGE_RX_PAGE_SHIFT) + +#define RX_DESC_CNT (BNGE_PAGE_SIZE / sizeof(struct rx_bd)) +#define TX_DESC_CNT (BNGE_PAGE_SIZE / sizeof(struct tx_bd)) +#define CP_DESC_CNT (BNGE_PAGE_SIZE / sizeof(struct tx_cmp)) +#define SW_RXBD_RING_SIZE (sizeof(struct bnge_sw_rx_bd) * RX_DESC_CNT) +#define HW_RXBD_RING_SIZE (sizeof(struct rx_bd) * RX_DESC_CNT) +#define SW_RXBD_AGG_RING_SIZE (sizeof(struct bnge_sw_rx_agg_bd) * RX_DESC_CNT) +#define SW_TXBD_RING_SIZE (sizeof(struct bnge_sw_tx_bd) * TX_DESC_CNT) +#define HW_TXBD_RING_SIZE (sizeof(struct tx_bd) * TX_DESC_CNT) +#define HW_CMPD_RING_SIZE (sizeof(struct tx_cmp) * CP_DESC_CNT) +#define BNGE_MAX_RX_DESC_CNT (RX_DESC_CNT * MAX_RX_PAGES - 1) +#define BNGE_MAX_RX_DESC_CNT_JUM_ENA (RX_DESC_CNT * MAX_RX_PAGES_AGG_ENA - 1) +#define BNGE_MAX_RX_JUM_DESC_CNT (RX_DESC_CNT * MAX_RX_AGG_PAGES - 1) +#define BNGE_MAX_TX_DESC_CNT (TX_DESC_CNT * MAX_TX_PAGES - 1) + +#endif /* _BNGE_NETDEV_H_ */ |