diff options
Diffstat (limited to 'drivers/net/ethernet/renesas/rswitch.h')
| -rw-r--r-- | drivers/net/ethernet/renesas/rswitch.h | 169 |
1 files changed, 113 insertions, 56 deletions
diff --git a/drivers/net/ethernet/renesas/rswitch.h b/drivers/net/ethernet/renesas/rswitch.h index bb9ed971a97c..aa605304fed0 100644 --- a/drivers/net/ethernet/renesas/rswitch.h +++ b/drivers/net/ethernet/renesas/rswitch.h @@ -1,18 +1,25 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* Renesas Ethernet Switch device driver * - * Copyright (C) 2022 Renesas Electronics Corporation + * Copyright (C) 2022-2025 Renesas Electronics Corporation */ #ifndef __RSWITCH_H__ #define __RSWITCH_H__ #include <linux/platform_device.h> +#include <linux/phy.h> + #include "rcar_gen4_ptp.h" #define RSWITCH_MAX_NUM_QUEUES 128 +#define RSWITCH_NUM_AGENTS 5 #define RSWITCH_NUM_PORTS 3 + +#define rswitch_for_all_ports(_priv, _rdev) \ + list_for_each_entry(_rdev, &_priv->port_list, list) + #define rswitch_for_each_enabled_port(priv, i) \ for (i = 0; i < RSWITCH_NUM_PORTS; i++) \ if (priv->rdev[i]->disabled) \ @@ -20,17 +27,23 @@ else #define rswitch_for_each_enabled_port_continue_reverse(priv, i) \ - for (i--; i >= 0; i--) \ + for (; i-- > 0; ) \ if (priv->rdev[i]->disabled) \ continue; \ else #define TX_RING_SIZE 1024 -#define RX_RING_SIZE 1024 +#define RX_RING_SIZE 4096 #define TS_RING_SIZE (TX_RING_SIZE * RSWITCH_NUM_PORTS) -#define PKT_BUF_SZ 1584 +#define RSWITCH_MAX_MTU 9600 +#define RSWITCH_HEADROOM (NET_SKB_PAD + NET_IP_ALIGN) +#define RSWITCH_DESC_BUF_SIZE 2048 +#define RSWITCH_TAILROOM SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) #define RSWITCH_ALIGN 128 +#define RSWITCH_BUF_SIZE (RSWITCH_HEADROOM + RSWITCH_DESC_BUF_SIZE + \ + RSWITCH_TAILROOM + RSWITCH_ALIGN) +#define RSWITCH_MAP_BUF_SIZE (RSWITCH_BUF_SIZE - RSWITCH_HEADROOM) #define RSWITCH_MAX_CTAG_PCP 7 #define RSWITCH_TIMEOUT_US 100000 @@ -718,35 +731,28 @@ enum rswitch_etha_mode { #define EAVCC_VEM_SC_TAG (0x3 << 16) -#define MPIC_PIS_MII 0x00 -#define MPIC_PIS_GMII 0x02 -#define MPIC_PIS_XGMII 0x04 -#define MPIC_LSC_SHIFT 3 -#define MPIC_LSC_100M (1 << MPIC_LSC_SHIFT) -#define MPIC_LSC_1G (2 << MPIC_LSC_SHIFT) -#define MPIC_LSC_2_5G (3 << MPIC_LSC_SHIFT) - -#define MDIO_READ_C45 0x03 -#define MDIO_WRITE_C45 0x01 +#define MPIC_PIS GENMASK(2, 0) +#define MPIC_PIS_GMII 2 +#define MPIC_PIS_XGMII 4 +#define MPIC_LSC GENMASK(5, 3) +#define MPIC_LSC_100M 1 +#define MPIC_LSC_1G 2 +#define MPIC_LSC_2_5G 3 +#define MPIC_PSMCS GENMASK(22, 16) +#define MPIC_PSMHT GENMASK(26, 24) #define MPSM_PSME BIT(0) -#define MPSM_MFF_C45 BIT(2) -#define MPSM_PRD_SHIFT 16 -#define MPSM_PRD_MASK GENMASK(31, MPSM_PRD_SHIFT) - -/* Completion flags */ -#define MMIS1_PAACS BIT(2) /* Address */ -#define MMIS1_PWACS BIT(1) /* Write */ -#define MMIS1_PRACS BIT(0) /* Read */ -#define MMIS1_CLEAR_FLAGS 0xf - -#define MPIC_PSMCS_SHIFT 16 -#define MPIC_PSMCS_MASK GENMASK(22, MPIC_PSMCS_SHIFT) -#define MPIC_PSMCS(val) ((val) << MPIC_PSMCS_SHIFT) - -#define MPIC_PSMHT_SHIFT 24 -#define MPIC_PSMHT_MASK GENMASK(26, MPIC_PSMHT_SHIFT) -#define MPIC_PSMHT(val) ((val) << MPIC_PSMHT_SHIFT) +#define MPSM_MFF BIT(2) +#define MPSM_MMF_C22 0 +#define MPSM_MMF_C45 1 +#define MPSM_PDA GENMASK(7, 3) +#define MPSM_PRA GENMASK(12, 8) +#define MPSM_POP GENMASK(14, 13) +#define MPSM_POP_ADDRESS 0 +#define MPSM_POP_WRITE 1 +#define MPSM_POP_READ_C22 2 +#define MPSM_POP_READ_C45 3 +#define MPSM_PRD GENMASK(31, 16) #define MLVC_PLV BIT(16) @@ -768,6 +774,10 @@ enum rswitch_gwca_mode { #define GWARIRM_ARIOG BIT(0) #define GWARIRM_ARR BIT(1) +#define GWMDNC_TSDMN(num) (((num) << 16) & GENMASK(17, 16)) +#define GWMDNC_TXDMN(num) (((num) << 8) & GENMASK(12, 8)) +#define GWMDNC_RXDMN(num) ((num) & GENMASK(4, 0)) + #define GWDCC_BALR BIT(24) #define GWDCC_DCP_MASK GENMASK(18, 16) #define GWDCC_DCP(prio) FIELD_PREP(GWDCC_DCP_MASK, (prio)) @@ -796,6 +806,7 @@ enum rswitch_gwca_mode { #define CABPPFLC_INIT_VALUE 0x00800080 /* MFWD */ +#define FWPC0(i) (FWPC00 + (i) * 0x10) #define FWPC0_LTHTA BIT(0) #define FWPC0_IP4UE BIT(3) #define FWPC0_IP4TE BIT(4) @@ -804,23 +815,42 @@ enum rswitch_gwca_mode { #define FWPC0_IP4EA BIT(10) #define FWPC0_IPDSA BIT(12) #define FWPC0_IPHLA BIT(18) -#define FWPC0_MACSDA BIT(20) +#define FWPC0_MACDSA BIT(20) +#define FWPC0_MACSSA BIT(23) #define FWPC0_MACHLA BIT(26) #define FWPC0_MACHMA BIT(27) #define FWPC0_VLANSA BIT(28) -#define FWPC0(i) (FWPC00 + (i) * 0x10) -#define FWPC0_DEFAULT (FWPC0_LTHTA | FWPC0_IP4UE | FWPC0_IP4TE | \ - FWPC0_IP4OE | FWPC0_L2SE | FWPC0_IP4EA | \ - FWPC0_IPDSA | FWPC0_IPHLA | FWPC0_MACSDA | \ - FWPC0_MACHLA | FWPC0_MACHMA | FWPC0_VLANSA) #define FWPC1(i) (FWPC10 + (i) * 0x10) +#define FWCP1_LTHFW GENMASK(16 + (RSWITCH_NUM_AGENTS - 1), 16) #define FWPC1_DDE BIT(0) -#define FWPBFC(i) (FWPBFC0 + (i) * 0x10) +#define FWPC2(i) (FWPC20 + (i) * 0x10) +#define FWCP2_LTWFW GENMASK(16 + (RSWITCH_NUM_AGENTS - 1), 16) +#define FWCP2_LTWFW_MASK GENMASK(16 + (RSWITCH_NUM_AGENTS - 1), 16) + +#define FWPBFC(i) (FWPBFC0 + (i) * 0x10) +#define FWPBFC_PBDV GENMASK(RSWITCH_NUM_AGENTS - 1, 0) #define FWPBFCSDC(j, i) (FWPBFCSDC00 + (i) * 0x10 + (j) * 0x04) +#define FWMACHEC_MACHMUE_MASK GENMASK(26, 16) + +#define FWMACTIM_MACTIOG BIT(0) +#define FWMACTIM_MACTR BIT(1) + +#define FWMACAGUSPC_MACAGUSP GENMASK(9, 0) +#define FWMACAGC_MACAGT GENMASK(15, 0) +#define FWMACAGC_MACAGE BIT(16) +#define FWMACAGC_MACAGSL BIT(17) +#define FWMACAGC_MACAGPM BIT(18) +#define FWMACAGC_MACDES BIT(24) +#define FWMACAGC_MACAGOG BIT(28) +#define FWMACAGC_MACDESOG BIT(29) + +#define RSW_AGEING_CLK_PER_US 0x140 +#define RSW_AGEING_TIME 300 + /* TOP */ #define TPEMIMC7(queue) (TPEMIMC70 + (queue) * 4) @@ -909,12 +939,13 @@ struct rswitch_ext_ts_desc { } __packed; struct rswitch_etha { - int index; + unsigned int index; void __iomem *addr; void __iomem *coma_addr; bool external_phy; struct mii_bus *mii; phy_interface_t phy_interface; + u32 psmcs; u8 mac_addr[MAX_ADDR_LEN]; int link; int speed; @@ -937,42 +968,46 @@ struct rswitch_gwca_queue { /* Common */ dma_addr_t ring_dma; - int ring_size; - int cur; - int dirty; + unsigned int ring_size; + unsigned int cur; + unsigned int dirty; - /* For [rt]_ring */ - int index; + /* For [rt]x_ring */ + unsigned int index; bool dir_tx; - struct sk_buff **skbs; struct net_device *ndev; /* queue to ndev for irq */ -}; - -struct rswitch_gwca_ts_info { - struct sk_buff *skb; - struct list_head list; - int port; - u8 tag; + union { + /* For TX */ + struct { + struct sk_buff **skbs; + dma_addr_t *unmap_addrs; + }; + /* For RX */ + struct { + void **rx_bufs; + struct sk_buff *skb_fstart; + u16 pkt_len; + }; + }; }; #define RSWITCH_NUM_IRQ_REGS (RSWITCH_MAX_NUM_QUEUES / BITS_PER_TYPE(u32)) struct rswitch_gwca { - int index; + unsigned int index; struct rswitch_desc *linkfix_table; dma_addr_t linkfix_table_dma; u32 linkfix_table_size; struct rswitch_gwca_queue *queues; int num_queues; struct rswitch_gwca_queue ts_queue; - struct list_head ts_info_list; DECLARE_BITMAP(used, RSWITCH_MAX_NUM_QUEUES); u32 tx_irq_bits[RSWITCH_NUM_IRQ_REGS]; u32 rx_irq_bits[RSWITCH_NUM_IRQ_REGS]; - int speed; }; #define NUM_QUEUES_PER_NDEV 2 +#define TS_TAGS_PER_PORT 256 struct rswitch_device { struct rswitch_private *priv; struct net_device *ndev; @@ -980,13 +1015,22 @@ struct rswitch_device { void __iomem *addr; struct rswitch_gwca_queue *tx_queue; struct rswitch_gwca_queue *rx_queue; - u8 ts_tag; + struct sk_buff *ts_skb[TS_TAGS_PER_PORT]; + DECLARE_BITMAP(ts_skb_used, TS_TAGS_PER_PORT); bool disabled; + struct list_head list; + int port; struct rswitch_etha *etha; struct device_node *np_port; struct phy *serdes; + + struct net_device *brdev; /* master bridge device */ + unsigned int learning_requested : 1; + unsigned int learning_offloaded : 1; + unsigned int forwarding_requested : 1; + unsigned int forwarding_offloaded : 1; }; struct rswitch_mfwd_mac_table_entry { @@ -1011,7 +1055,20 @@ struct rswitch_private { struct rswitch_etha etha[RSWITCH_NUM_PORTS]; struct rswitch_mfwd mfwd; + struct list_head port_list; + + spinlock_t lock; /* lock interrupt registers' control */ + struct clk *clk; + + bool etha_no_runtime_change; bool gwca_halt; + struct net_device *offload_brdev; + + enum hwtstamp_tx_types tstamp_tx_ctrl; + enum hwtstamp_rx_filters tstamp_rx_ctrl; }; +bool is_rdev(const struct net_device *ndev); +void rswitch_modify(void __iomem *addr, enum rswitch_reg reg, u32 clear, u32 set); + #endif /* #ifndef __RSWITCH_H__ */ |