Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
FUJITA Tomonori | 657 | 100.00% | 7 | 100.00% |
Total | 657 | 7 |
/* SPDX-License-Identifier: GPL-2.0+ */ /* Copyright (c) Tehuti Networks Ltd. */ #ifndef _TN40_H_ #define _TN40_H_ #include "tn40_regs.h" #define TN40_DRV_NAME "tn40xx" #define TN40_MDIO_SPEED_1MHZ (1) #define TN40_MDIO_SPEED_6MHZ (6) /* netdev tx queue len for Luxor. The default value is 1000. * ifconfig eth1 txqueuelen 3000 - to change it at runtime. */ #define TN40_NDEV_TXQ_LEN 1000 #define TN40_FIFO_SIZE 4096 #define TN40_FIFO_EXTRA_SPACE 1024 #define TN40_TXF_DESC_SZ 16 #define TN40_MAX_TX_LEVEL (priv->txd_fifo0.m.memsz - 16) #define TN40_MIN_TX_LEVEL 256 #define TN40_NO_UPD_PACKETS 40 #define TN40_MAX_MTU BIT(14) #define TN40_PCK_TH_MULT 128 #define TN40_INT_COAL_MULT 2 #define TN40_INT_REG_VAL(coal, coal_rc, rxf_th, pck_th) ( \ FIELD_PREP(GENMASK(14, 0), (coal)) | \ FIELD_PREP(BIT(15), (coal_rc)) | \ FIELD_PREP(GENMASK(19, 16), (rxf_th)) | \ FIELD_PREP(GENMASK(31, 20), (pck_th)) \ ) struct tn40_fifo { dma_addr_t da; /* Physical address of fifo (used by HW) */ char *va; /* Virtual address of fifo (used by SW) */ u32 rptr, wptr; /* Cached values of RPTR and WPTR registers, * they're 32 bits on both 32 and 64 archs. */ u16 reg_cfg0; u16 reg_cfg1; u16 reg_rptr; u16 reg_wptr; u16 memsz; /* Memory size allocated for fifo */ u16 size_mask; u16 pktsz; /* Skb packet size to allocate */ u16 rcvno; /* Number of buffers that come from this RXF */ }; struct tn40_txf_fifo { struct tn40_fifo m; /* The minimal set of variables used by all fifos */ }; struct tn40_txd_fifo { struct tn40_fifo m; /* The minimal set of variables used by all fifos */ }; struct tn40_rxf_fifo { struct tn40_fifo m; /* The minimal set of variables used by all fifos */ }; struct tn40_rxd_fifo { struct tn40_fifo m; /* The minimal set of variables used by all fifos */ }; struct tn40_rx_map { struct page *page; }; struct tn40_rxdb { unsigned int *stack; struct tn40_rx_map *elems; unsigned int nelem; unsigned int top; }; union tn40_tx_dma_addr { dma_addr_t dma; struct sk_buff *skb; }; /* Entry in the db. * if len == 0 addr is dma * if len != 0 addr is skb */ struct tn40_tx_map { union tn40_tx_dma_addr addr; int len; }; /* tx database - implemented as circular fifo buffer */ struct tn40_txdb { struct tn40_tx_map *start; /* Points to the first element */ struct tn40_tx_map *end; /* Points just AFTER the last element */ struct tn40_tx_map *rptr; /* Points to the next element to read */ struct tn40_tx_map *wptr; /* Points to the next element to write */ int size; /* Number of elements in the db */ }; struct tn40_priv { struct net_device *ndev; struct pci_dev *pdev; struct napi_struct napi; /* RX FIFOs: 1 for data (full) descs, and 2 for free descs */ struct tn40_rxd_fifo rxd_fifo0; struct tn40_rxf_fifo rxf_fifo0; struct tn40_rxdb *rxdb0; /* Rx dbs to store skb pointers */ struct page_pool *page_pool; /* Tx FIFOs: 1 for data desc, 1 for empty (acks) desc */ struct tn40_txd_fifo txd_fifo0; struct tn40_txf_fifo txf_fifo0; struct tn40_txdb txdb; int tx_level; int tx_update_mark; int tx_noupd; int stats_flag; struct rtnl_link_stats64 stats; u64 alloc_fail; struct u64_stats_sync syncp; u8 txd_size; u8 txf_size; u8 rxd_size; u8 rxf_size; u32 rdintcm; u32 tdintcm; u32 isr_mask; void __iomem *regs; /* SHORT_PKT_FIX */ u32 b0_len; dma_addr_t b0_dma; /* Physical address of buffer */ char *b0_va; /* Virtual address of buffer */ struct mii_bus *mdio; struct phy_device *phydev; struct phylink *phylink; struct phylink_config phylink_config; }; /* RX FREE descriptor - 64bit */ struct tn40_rxf_desc { __le32 info; /* Buffer Count + Info - described below */ __le32 va_lo; /* VAdr[31:0] */ __le32 va_hi; /* VAdr[63:32] */ __le32 pa_lo; /* PAdr[31:0] */ __le32 pa_hi; /* PAdr[63:32] */ __le32 len; /* Buffer Length */ }; #define TN40_GET_RXD_BC(x) FIELD_GET(GENMASK(4, 0), (x)) #define TN40_GET_RXD_ERR(x) FIELD_GET(GENMASK(26, 21), (x)) #define TN40_GET_RXD_PKT_ID(x) FIELD_GET(GENMASK(30, 28), (x)) #define TN40_GET_RXD_VTAG(x) FIELD_GET(BIT(31), (x)) #define TN40_GET_RXD_VLAN_TCI(x) FIELD_GET(GENMASK(15, 0), (x)) struct tn40_rxd_desc { __le32 rxd_val1; __le16 len; __le16 rxd_vlan; __le32 va_lo; __le32 va_hi; __le32 rss_lo; __le32 rss_hash; }; #define TN40_MAX_PBL (19) /* PBL describes each virtual buffer to be transmitted from the host. */ struct tn40_pbl { __le32 pa_lo; __le32 pa_hi; __le32 len; }; /* First word for TXD descriptor. It means: type = 3 for regular Tx packet, * hw_csum = 7 for IP+UDP+TCP HW checksums. */ #define TN40_TXD_W1_VAL(bc, checksum, vtag, lgsnd, vlan_id) ( \ GENMASK(17, 16) | \ FIELD_PREP(GENMASK(4, 0), (bc)) | \ FIELD_PREP(GENMASK(7, 5), (checksum)) | \ FIELD_PREP(BIT(8), (vtag)) | \ FIELD_PREP(GENMASK(12, 9), (lgsnd)) | \ FIELD_PREP(GENMASK(15, 13), \ FIELD_GET(GENMASK(15, 13), (vlan_id))) | \ FIELD_PREP(GENMASK(31, 20), \ FIELD_GET(GENMASK(11, 0), (vlan_id))) \ ) struct tn40_txd_desc { __le32 txd_val1; __le16 mss; __le16 length; __le32 va_lo; __le32 va_hi; struct tn40_pbl pbl[]; /* Fragments */ }; struct tn40_txf_desc { u32 status; u32 va_lo; /* VAdr[31:0] */ u32 va_hi; /* VAdr[63:32] */ u32 pad; }; static inline u32 tn40_read_reg(struct tn40_priv *priv, u32 reg) { return readl(priv->regs + reg); } static inline void tn40_write_reg(struct tn40_priv *priv, u32 reg, u32 val) { writel(val, priv->regs + reg); } int tn40_set_link_speed(struct tn40_priv *priv, u32 speed); int tn40_mdiobus_init(struct tn40_priv *priv); int tn40_phy_register(struct tn40_priv *priv); void tn40_phy_unregister(struct tn40_priv *priv); #endif /* _TN40XX_H */
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