| /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ |
| /* Copyright(c) 2018-2019 Realtek Corporation |
| */ |
| |
| #ifndef __RTK_PCI_H_ |
| #define __RTK_PCI_H_ |
| |
| #include "main.h" |
| |
| #define RTK_DEFAULT_TX_DESC_NUM 128 |
| #define RTK_BEQ_TX_DESC_NUM 256 |
| |
| #define RTK_MAX_RX_DESC_NUM 512 |
| /* 11K + rx desc size */ |
| #define RTK_PCI_RX_BUF_SIZE (11454 + 24) |
| |
| #define RTK_PCI_CTRL 0x300 |
| #define BIT_RST_TRXDMA_INTF BIT(20) |
| #define BIT_RX_TAG_EN BIT(15) |
| #define REG_DBI_WDATA_V1 0x03E8 |
| #define REG_DBI_RDATA_V1 0x03EC |
| #define REG_DBI_FLAG_V1 0x03F0 |
| #define BIT_DBI_RFLAG BIT(17) |
| #define BIT_DBI_WFLAG BIT(16) |
| #define BITS_DBI_WREN GENMASK(15, 12) |
| #define BITS_DBI_ADDR_MASK GENMASK(11, 2) |
| |
| #define REG_MDIO_V1 0x03F4 |
| #define REG_PCIE_MIX_CFG 0x03F8 |
| #define BITS_MDIO_ADDR_MASK GENMASK(4, 0) |
| #define BIT_MDIO_WFLAG_V1 BIT(5) |
| #define RTW_PCI_MDIO_PG_SZ BIT(5) |
| #define RTW_PCI_MDIO_PG_OFFS_G1 0 |
| #define RTW_PCI_MDIO_PG_OFFS_G2 2 |
| #define RTW_PCI_WR_RETRY_CNT 20 |
| |
| #define RTK_PCIE_LINK_CFG 0x0719 |
| #define BIT_CLKREQ_SW_EN BIT(4) |
| #define BIT_L1_SW_EN BIT(3) |
| #define RTK_PCIE_CLKDLY_CTRL 0x0725 |
| |
| #define BIT_PCI_BCNQ_FLAG BIT(4) |
| #define RTK_PCI_TXBD_DESA_BCNQ 0x308 |
| #define RTK_PCI_TXBD_DESA_H2CQ 0x1320 |
| #define RTK_PCI_TXBD_DESA_MGMTQ 0x310 |
| #define RTK_PCI_TXBD_DESA_BKQ 0x330 |
| #define RTK_PCI_TXBD_DESA_BEQ 0x328 |
| #define RTK_PCI_TXBD_DESA_VIQ 0x320 |
| #define RTK_PCI_TXBD_DESA_VOQ 0x318 |
| #define RTK_PCI_TXBD_DESA_HI0Q 0x340 |
| #define RTK_PCI_RXBD_DESA_MPDUQ 0x338 |
| |
| #define TRX_BD_IDX_MASK GENMASK(11, 0) |
| #define TRX_BD_HW_IDX_MASK GENMASK(27, 16) |
| |
| /* BCNQ is specialized for rsvd page, does not need to specify a number */ |
| #define RTK_PCI_TXBD_NUM_H2CQ 0x1328 |
| #define RTK_PCI_TXBD_NUM_MGMTQ 0x380 |
| #define RTK_PCI_TXBD_NUM_BKQ 0x38A |
| #define RTK_PCI_TXBD_NUM_BEQ 0x388 |
| #define RTK_PCI_TXBD_NUM_VIQ 0x386 |
| #define RTK_PCI_TXBD_NUM_VOQ 0x384 |
| #define RTK_PCI_TXBD_NUM_HI0Q 0x38C |
| #define RTK_PCI_RXBD_NUM_MPDUQ 0x382 |
| #define RTK_PCI_TXBD_IDX_H2CQ 0x132C |
| #define RTK_PCI_TXBD_IDX_MGMTQ 0x3B0 |
| #define RTK_PCI_TXBD_IDX_BKQ 0x3AC |
| #define RTK_PCI_TXBD_IDX_BEQ 0x3A8 |
| #define RTK_PCI_TXBD_IDX_VIQ 0x3A4 |
| #define RTK_PCI_TXBD_IDX_VOQ 0x3A0 |
| #define RTK_PCI_TXBD_IDX_HI0Q 0x3B8 |
| #define RTK_PCI_RXBD_IDX_MPDUQ 0x3B4 |
| |
| #define RTK_PCI_TXBD_RWPTR_CLR 0x39C |
| #define RTK_PCI_TXBD_H2CQ_CSR 0x1330 |
| |
| #define BIT_CLR_H2CQ_HOST_IDX BIT(16) |
| #define BIT_CLR_H2CQ_HW_IDX BIT(8) |
| |
| #define RTK_PCI_HIMR0 0x0B0 |
| #define RTK_PCI_HISR0 0x0B4 |
| #define RTK_PCI_HIMR1 0x0B8 |
| #define RTK_PCI_HISR1 0x0BC |
| #define RTK_PCI_HIMR2 0x10B0 |
| #define RTK_PCI_HISR2 0x10B4 |
| #define RTK_PCI_HIMR3 0x10B8 |
| #define RTK_PCI_HISR3 0x10BC |
| /* IMR 0 */ |
| #define IMR_TIMER2 BIT(31) |
| #define IMR_TIMER1 BIT(30) |
| #define IMR_PSTIMEOUT BIT(29) |
| #define IMR_GTINT4 BIT(28) |
| #define IMR_GTINT3 BIT(27) |
| #define IMR_TBDER BIT(26) |
| #define IMR_TBDOK BIT(25) |
| #define IMR_TSF_BIT32_TOGGLE BIT(24) |
| #define IMR_BCNDMAINT0 BIT(20) |
| #define IMR_BCNDOK0 BIT(16) |
| #define IMR_HSISR_IND_ON_INT BIT(15) |
| #define IMR_BCNDMAINT_E BIT(14) |
| #define IMR_ATIMEND BIT(12) |
| #define IMR_HISR1_IND_INT BIT(11) |
| #define IMR_C2HCMD BIT(10) |
| #define IMR_CPWM2 BIT(9) |
| #define IMR_CPWM BIT(8) |
| #define IMR_HIGHDOK BIT(7) |
| #define IMR_MGNTDOK BIT(6) |
| #define IMR_BKDOK BIT(5) |
| #define IMR_BEDOK BIT(4) |
| #define IMR_VIDOK BIT(3) |
| #define IMR_VODOK BIT(2) |
| #define IMR_RDU BIT(1) |
| #define IMR_ROK BIT(0) |
| /* IMR 1 */ |
| #define IMR_TXFIFO_TH_INT BIT(30) |
| #define IMR_BTON_STS_UPDATE BIT(29) |
| #define IMR_MCUERR BIT(28) |
| #define IMR_BCNDMAINT7 BIT(27) |
| #define IMR_BCNDMAINT6 BIT(26) |
| #define IMR_BCNDMAINT5 BIT(25) |
| #define IMR_BCNDMAINT4 BIT(24) |
| #define IMR_BCNDMAINT3 BIT(23) |
| #define IMR_BCNDMAINT2 BIT(22) |
| #define IMR_BCNDMAINT1 BIT(21) |
| #define IMR_BCNDOK7 BIT(20) |
| #define IMR_BCNDOK6 BIT(19) |
| #define IMR_BCNDOK5 BIT(18) |
| #define IMR_BCNDOK4 BIT(17) |
| #define IMR_BCNDOK3 BIT(16) |
| #define IMR_BCNDOK2 BIT(15) |
| #define IMR_BCNDOK1 BIT(14) |
| #define IMR_ATIMEND_E BIT(13) |
| #define IMR_ATIMEND BIT(12) |
| #define IMR_TXERR BIT(11) |
| #define IMR_RXERR BIT(10) |
| #define IMR_TXFOVW BIT(9) |
| #define IMR_RXFOVW BIT(8) |
| #define IMR_CPU_MGQ_TXDONE BIT(5) |
| #define IMR_PS_TIMER_C BIT(4) |
| #define IMR_PS_TIMER_B BIT(3) |
| #define IMR_PS_TIMER_A BIT(2) |
| #define IMR_CPUMGQ_TX_TIMER BIT(1) |
| /* IMR 3 */ |
| #define IMR_H2CDOK BIT(16) |
| |
| enum rtw_pci_flags { |
| RTW_PCI_FLAG_NAPI_RUNNING, |
| |
| NUM_OF_RTW_PCI_FLAGS, |
| }; |
| |
| /* one element is reserved to know if the ring is closed */ |
| static inline int avail_desc(u32 wp, u32 rp, u32 len) |
| { |
| if (rp > wp) |
| return rp - wp - 1; |
| else |
| return len - wp + rp - 1; |
| } |
| |
| #define RTK_PCI_TXBD_OWN_OFFSET 15 |
| #define RTK_PCI_TXBD_BCN_WORK 0x383 |
| |
| struct rtw_pci_tx_buffer_desc { |
| __le16 buf_size; |
| __le16 psb_len; |
| __le32 dma; |
| }; |
| |
| struct rtw_pci_tx_data { |
| dma_addr_t dma; |
| u8 sn; |
| }; |
| |
| struct rtw_pci_ring { |
| u8 *head; |
| dma_addr_t dma; |
| |
| u8 desc_size; |
| |
| u32 len; |
| u32 wp; |
| u32 rp; |
| }; |
| |
| struct rtw_pci_tx_ring { |
| struct rtw_pci_ring r; |
| struct sk_buff_head queue; |
| bool queue_stopped; |
| }; |
| |
| struct rtw_pci_rx_buffer_desc { |
| __le16 buf_size; |
| __le16 total_pkt_size; |
| __le32 dma; |
| }; |
| |
| struct rtw_pci_rx_ring { |
| struct rtw_pci_ring r; |
| struct sk_buff *buf[RTK_MAX_RX_DESC_NUM]; |
| }; |
| |
| #define RX_TAG_MAX 8192 |
| |
| struct rtw_pci { |
| struct pci_dev *pdev; |
| |
| /* Used for PCI interrupt. */ |
| spinlock_t hwirq_lock; |
| /* Used for PCI TX ring/queueing, and enable INT. */ |
| spinlock_t irq_lock; |
| u32 irq_mask[4]; |
| bool irq_enabled; |
| bool running; |
| |
| /* napi structure */ |
| struct net_device netdev; |
| struct napi_struct napi; |
| |
| u16 rx_tag; |
| DECLARE_BITMAP(tx_queued, RTK_MAX_TX_QUEUE_NUM); |
| struct rtw_pci_tx_ring tx_rings[RTK_MAX_TX_QUEUE_NUM]; |
| struct rtw_pci_rx_ring rx_rings[RTK_MAX_RX_QUEUE_NUM]; |
| u16 link_ctrl; |
| DECLARE_BITMAP(flags, NUM_OF_RTW_PCI_FLAGS); |
| |
| void __iomem *mmap; |
| }; |
| |
| extern const struct dev_pm_ops rtw_pm_ops; |
| |
| int rtw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id); |
| void rtw_pci_remove(struct pci_dev *pdev); |
| void rtw_pci_shutdown(struct pci_dev *pdev); |
| |
| static inline u32 max_num_of_tx_queue(u8 queue) |
| { |
| u32 max_num; |
| |
| switch (queue) { |
| case RTW_TX_QUEUE_BE: |
| max_num = RTK_BEQ_TX_DESC_NUM; |
| break; |
| case RTW_TX_QUEUE_BCN: |
| max_num = 1; |
| break; |
| default: |
| max_num = RTK_DEFAULT_TX_DESC_NUM; |
| break; |
| } |
| |
| return max_num; |
| } |
| |
| static inline struct |
| rtw_pci_tx_data *rtw_pci_get_tx_data(struct sk_buff *skb) |
| { |
| struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
| |
| BUILD_BUG_ON(sizeof(struct rtw_pci_tx_data) > |
| sizeof(info->status.status_driver_data)); |
| |
| return (struct rtw_pci_tx_data *)info->status.status_driver_data; |
| } |
| |
| static inline |
| struct rtw_pci_tx_buffer_desc *get_tx_buffer_desc(struct rtw_pci_tx_ring *ring, |
| u32 size) |
| { |
| u8 *buf_desc; |
| |
| buf_desc = ring->r.head + ring->r.wp * size; |
| return (struct rtw_pci_tx_buffer_desc *)buf_desc; |
| } |
| |
| #endif |
