* [PATCH v2] net/r8169: add hardware registers access routines
@ 2024-09-11 8:19 Howard Wang
0 siblings, 0 replies; only message in thread
From: Howard Wang @ 2024-09-11 8:19 UTC (permalink / raw)
To: dev; +Cc: pro_nic_dpdk, Howard Wang
Add implementation for hardware registers access routines.
Signed-off-by: Howard Wang <howard_wang@realsil.com.cn>
---
drivers/net/r8169/meson.build | 1 +
drivers/net/r8169/r8169_base.h | 389 +++++++++++++++++++++++++++++++
drivers/net/r8169/r8169_ethdev.h | 1 +
drivers/net/r8169/r8169_hw.c | 94 ++++++++
drivers/net/r8169/r8169_hw.h | 29 +++
5 files changed, 514 insertions(+)
create mode 100644 drivers/net/r8169/r8169_hw.c
create mode 100644 drivers/net/r8169/r8169_hw.h
diff --git a/drivers/net/r8169/meson.build b/drivers/net/r8169/meson.build
index e37b4fb237..f659e56192 100644
--- a/drivers/net/r8169/meson.build
+++ b/drivers/net/r8169/meson.build
@@ -3,5 +3,6 @@
sources = files(
'r8169_ethdev.c',
+ 'r8169_hw.c',
)
diff --git a/drivers/net/r8169/r8169_base.h b/drivers/net/r8169/r8169_base.h
index c3b0186daa..0e79d8d22a 100644
--- a/drivers/net/r8169/r8169_base.h
+++ b/drivers/net/r8169/r8169_base.h
@@ -5,12 +5,401 @@
#ifndef _R8169_BASE_H_
#define _R8169_BASE_H_
+#include <stdint.h>
+#include <stddef.h>
+#include <inttypes.h>
+#include <string.h>
+
+#include <rte_common.h>
+#include <rte_cycles.h>
+#include <rte_log.h>
+#include <rte_debug.h>
+#include <rte_byteorder.h>
+#include <rte_io.h>
+#include <rte_version.h>
+
typedef uint8_t u8;
typedef uint16_t u16;
typedef uint32_t u32;
typedef uint64_t u64;
+enum RTL_registers {
+ MAC0 = 0x00, /* Ethernet hardware address */
+ MAC4 = 0x04,
+ MAR0 = 0x08, /* Multicast filter */
+ CounterAddrLow = 0x10,
+ CounterAddrHigh = 0x14,
+ CustomLED = 0x18,
+ TxDescStartAddrLow = 0x20,
+ TxDescStartAddrHigh = 0x24,
+ TxHDescStartAddrLow = 0x28,
+ TxHDescStartAddrHigh = 0x2C,
+ FLASH = 0x30,
+ INT_CFG0_8125 = 0x34,
+ ERSR = 0x36,
+ ChipCmd = 0x37,
+ TxPoll = 0x38,
+ IntrMask = 0x3C,
+ IntrStatus = 0x3E,
+ TxConfig = 0x40,
+ RxConfig = 0x44,
+ TCTR = 0x48,
+ Cfg9346 = 0x50,
+ Config0 = 0x51,
+ Config1 = 0x52,
+ Config2 = 0x53,
+ Config3 = 0x54,
+ Config4 = 0x55,
+ Config5 = 0x56,
+ TDFNR = 0x57,
+ TimeInt0 = 0x58,
+ TimeInt1 = 0x5C,
+ PHYAR = 0x60,
+ CSIDR = 0x64,
+ CSIAR = 0x68,
+ PHYstatus = 0x6C,
+ MACDBG = 0x6D,
+ GPIO = 0x6E,
+ PMCH = 0x6F,
+ ERIDR = 0x70,
+ ERIAR = 0x74,
+ INT_CFG1_8125 = 0x7A,
+ EPHY_RXER_NUM = 0x7C,
+ EPHYAR = 0x80,
+ TimeInt2 = 0x8C,
+ OCPDR = 0xB0,
+ MACOCP = 0xB0,
+ OCPAR = 0xB4,
+ SecMAC0 = 0xB4,
+ SecMAC4 = 0xB8,
+ PHYOCP = 0xB8,
+ DBG_reg = 0xD1,
+ TwiCmdReg = 0xD2,
+ MCUCmd_reg = 0xD3,
+ RxMaxSize = 0xDA,
+ EFUSEAR = 0xDC,
+ CPlusCmd = 0xE0,
+ IntrMitigate = 0xE2,
+ RxDescAddrLow = 0xE4,
+ RxDescAddrHigh = 0xE8,
+ MTPS = 0xEC,
+ FuncEvent = 0xF0,
+ PPSW = 0xF2,
+ FuncEventMask = 0xF4,
+ TimeInt3 = 0xF4,
+ FuncPresetState = 0xF8,
+ CMAC_IBCR0 = 0xF8,
+ CMAC_IBCR2 = 0xF9,
+ CMAC_IBIMR0 = 0xFA,
+ CMAC_IBISR0 = 0xFB,
+ FuncForceEvent = 0xFC,
+
+ /* 8125 */
+ IMR0_8125 = 0x38,
+ ISR0_8125 = 0x3C,
+ TPPOLL_8125 = 0x90,
+ IMR1_8125 = 0x800,
+ ISR1_8125 = 0x802,
+ IMR2_8125 = 0x804,
+ ISR2_8125 = 0x806,
+ IMR3_8125 = 0x808,
+ ISR3_8125 = 0x80A,
+ BACKUP_ADDR0_8125 = 0x19E0,
+ BACKUP_ADDR1_8125 = 0X19E4,
+ TCTR0_8125 = 0x0048,
+ TCTR1_8125 = 0x004C,
+ TCTR2_8125 = 0x0088,
+ TCTR3_8125 = 0x001C,
+ TIMER_INT0_8125 = 0x0058,
+ TIMER_INT1_8125 = 0x005C,
+ TIMER_INT2_8125 = 0x008C,
+ TIMER_INT3_8125 = 0x00F4,
+ INT_MITI_V2_0_RX = 0x0A00,
+ INT_MITI_V2_0_TX = 0x0A02,
+ INT_MITI_V2_1_RX = 0x0A08,
+ INT_MITI_V2_1_TX = 0x0A0A,
+ IMR_V2_CLEAR_REG_8125 = 0x0D00,
+ ISR_V2_8125 = 0x0D04,
+ IMR_V2_SET_REG_8125 = 0x0D0C,
+ TDU_STA_8125 = 0x0D08,
+ RDU_STA_8125 = 0x0D0A,
+ IMR_V4_L2_CLEAR_REG_8125 = 0x0D10,
+ IMR_V4_L2_SET_REG_8125 = 0x0D18,
+ ISR_V4_L2_8125 = 0x0D14,
+ DOUBLE_VLAN_CONFIG = 0x1000,
+ TX_NEW_CTRL = 0x203E,
+ TNPDS_Q1_LOW_8125 = 0x2100,
+ PLA_TXQ0_IDLE_CREDIT = 0x2500,
+ PLA_TXQ1_IDLE_CREDIT = 0x2504,
+ SW_TAIL_PTR0_8125 = 0x2800,
+ HW_CLO_PTR0_8125 = 0x2802,
+ SW_TAIL_PTR0_8126 = 0x2800,
+ HW_CLO_PTR0_8126 = 0x2800,
+ RDSAR_Q1_LOW_8125 = 0x4000,
+ RSS_CTRL_8125 = 0x4500,
+ Q_NUM_CTRL_8125 = 0x4800,
+ RSS_KEY_8125 = 0x4600,
+ RSS_INDIRECTION_TBL_8125_V2 = 0x4700,
+ EEE_TXIDLE_TIMER_8125 = 0x6048,
+};
+
+enum RTL_register_content {
+ /* Interrupt status bits */
+ SYSErr = 0x8000,
+ PCSTimeout = 0x4000,
+ SWInt = 0x0100,
+ TxDescUnavail = 0x0080,
+ RxFIFOOver = 0x0040,
+ LinkChg = 0x0020,
+ RxDescUnavail = 0x0010,
+ TxErr = 0x0008,
+ TxOK = 0x0004,
+ RxErr = 0x0002,
+ RxOK = 0x0001,
+
+ /* RX status desc */
+ RxRWT = (1UL << 22),
+ RxRES = (1UL << 21),
+ RxRUNT = (1UL << 20),
+ RxCRC = (1UL << 19),
+
+ /* ChipCmd bits */
+ StopReq = 0x80,
+ CmdReset = 0x10,
+ CmdRxEnb = 0x08,
+ CmdTxEnb = 0x04,
+ RxBufEmpty = 0x01,
+
+ /* Cfg9346 bits */
+ Cfg9346_Lock = 0x00,
+ Cfg9346_Unlock = 0xC0,
+ Cfg9346_EEDO = (1UL << 0),
+ Cfg9346_EEDI = (1UL << 1),
+ Cfg9346_EESK = (1UL << 2),
+ Cfg9346_EECS = (1UL << 3),
+ Cfg9346_EEM0 = (1UL << 6),
+ Cfg9346_EEM1 = (1UL << 7),
+
+ /* RX mode bits */
+ AcceptErr = 0x20,
+ AcceptRunt = 0x10,
+ AcceptBroadcast = 0x08,
+ AcceptMulticast = 0x04,
+ AcceptMyPhys = 0x02,
+ AcceptAllPhys = 0x01,
+
+ /* Transmit priority polling */
+ HPQ = 0x80,
+ NPQ = 0x40,
+ FSWInt = 0x01,
+
+ /* RX config bits */
+ Reserved2_shift = 13,
+ RxCfgDMAShift = 8,
+ EnableRxDescV3 = (1 << 24),
+ EnableOuterVlan = (1 << 23),
+ EnableInnerVlan = (1 << 22),
+ RxCfg_128_int_en = (1 << 15),
+ RxCfg_fet_multi_en = (1 << 14),
+ RxCfg_half_refetch = (1 << 13),
+ RxCfg_pause_slot_en = (1 << 11),
+ RxCfg_9356SEL = (1 << 6),
+ EnableRxDescV4_0 = (1 << 1), /* Not in rcr */
+
+ /* TX config bits */
+ TxInterFrameGapShift = 24,
+ TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits. */
+ TxMACLoopBack = (1UL << 17), /* MAC loopback */
+
+ /* Config1 register */
+ LEDS1 = (1UL << 7),
+ LEDS0 = (1UL << 6),
+ Speed_down = (1UL << 4),
+ MEMMAP = (1UL << 3),
+ IOMAP = (1UL << 2),
+ VPD = (1UL << 1),
+ PMEnable = (1UL << 0), /* Power management enable */
+
+ /* Config2 register */
+ PMSTS_En = (1UL << 5),
+
+ /* Config3 register */
+ Isolate_en = (1UL << 12), /* Isolate enable */
+ MagicPacket = (1UL << 5), /* Wake up when receives a magic packet */
+ LinkUp = (1UL << 4), /* This bit is reserved in RTL8125B. */
+
+ /* Wake up when the cable connection is re-established */
+ ECRCEN = (1UL << 3), /* This bit is reserved in RTL8125B. */
+ Jumbo_En0 = (1UL << 2), /* This bit is reserved in RTL8125B. */
+ RDY_TO_L23 = (1UL << 1), /* This bit is reserved in RTL8125B. */
+ Beacon_en = (1UL << 0), /* This bit is reserved in RTL8125B. */
+
+ /* Config4 register */
+ Jumbo_En1 = (1UL << 1), /* This bit is reserved in RTL8125B. */
+
+ /* Config5 register */
+ BWF = (1UL << 6), /* Accept broadcast wakeup frame */
+ MWF = (1UL << 5), /* Accept multicast wakeup frame */
+ UWF = (1UL << 4), /* Accept unicast wakeup frame */
+ LanWake = (1UL << 1), /* LanWake enable/disable */
+ PMEStatus = (1UL << 0), /* PME status can be reset by PCI RST#. */
+
+ /* CPlusCmd */
+ EnableBist = (1UL << 15),
+ Macdbgo_oe = (1UL << 14),
+ Normal_mode = (1UL << 13),
+ Force_halfdup = (1UL << 12),
+ Force_rxflow_en = (1UL << 11),
+ Force_txflow_en = (1UL << 10),
+ Cxpl_dbg_sel = (1UL << 9), /* This bit is reserved in RTL8125B. */
+ ASF = (1UL << 8), /* This bit is reserved in RTL8125C. */
+ PktCntrDisable = (1UL << 7),
+ RxVlan = (1UL << 6),
+ RxChkSum = (1UL << 5),
+ Macdbgo_sel = 0x001C,
+ INTT_0 = 0x0000,
+ INTT_1 = 0x0001,
+ INTT_2 = 0x0002,
+ INTT_3 = 0x0003,
+
+ /* PHY status */
+ PowerSaveStatus = 0x80,
+ _2500bpsF = 0x400,
+ TxFlowCtrl = 0x40,
+ RxFlowCtrl = 0x20,
+ _1000bpsF = 0x10,
+ _100bps = 0x08,
+ _10bps = 0x04,
+ LinkStatus = 0x02,
+ FullDup = 0x01,
+
+ /* DBG reg */
+ Fix_Nak_1 = (1UL << 4),
+ Fix_Nak_2 = (1UL << 3),
+ DBGPIN_E2 = (1UL << 0),
+
+ /* Reset counter command */
+ CounterReset = 0x1,
+ /* Dump counter command */
+ CounterDump = 0x8,
+
+ /* PHY access */
+ PHYAR_Flag = 0x80000000,
+ PHYAR_Write = 0x80000000,
+ PHYAR_Read = 0x00000000,
+ PHYAR_Reg_Mask = 0x1f,
+ PHYAR_Reg_shift = 16,
+ PHYAR_Data_Mask = 0xffff,
+
+ /* EPHY access */
+ EPHYAR_Flag = 0x80000000,
+ EPHYAR_Write = 0x80000000,
+ EPHYAR_Read = 0x00000000,
+ EPHYAR_Reg_Mask = 0x3f,
+ EPHYAR_Reg_Mask_v2 = 0x7f,
+ EPHYAR_Reg_shift = 16,
+ EPHYAR_Data_Mask = 0xffff,
+
+ /* CSI access */
+ CSIAR_Flag = 0x80000000,
+ CSIAR_Write = 0x80000000,
+ CSIAR_Read = 0x00000000,
+ CSIAR_ByteEn = 0x0f,
+ CSIAR_ByteEn_shift = 12,
+ CSIAR_Addr_Mask = 0x0fff,
+
+ /* ERI access */
+ ERIAR_Flag = 0x80000000,
+ ERIAR_Write = 0x80000000,
+ ERIAR_Read = 0x00000000,
+ ERIAR_Addr_Align = 4, /* ERI access register address must be 4 byte alignment. */
+ ERIAR_ExGMAC = 0,
+ ERIAR_MSIX = 1,
+ ERIAR_ASF = 2,
+ ERIAR_OOB = 2,
+ ERIAR_Type_shift = 16,
+ ERIAR_ByteEn = 0x0f,
+ ERIAR_ByteEn_shift = 12,
+
+ /* OCP GPHY access */
+ OCPDR_Write = 0x80000000,
+ OCPDR_Read = 0x00000000,
+ OCPDR_Reg_Mask = 0xFF,
+ OCPDR_Data_Mask = 0xFFFF,
+ OCPDR_GPHY_Reg_shift = 16,
+ OCPAR_Flag = 0x80000000,
+ OCPAR_GPHY_Write = 0x8000F060,
+ OCPAR_GPHY_Read = 0x0000F060,
+ OCPR_Write = 0x80000000,
+ OCPR_Read = 0x00000000,
+ OCPR_Addr_Reg_shift = 16,
+ OCPR_Flag = 0x80000000,
+ OCP_STD_PHY_BASE_PAGE = 0x0A40,
+
+ /* MCU command */
+ Now_is_oob = (1UL << 7),
+ Txfifo_empty = (1UL << 5),
+ Rxfifo_empty = (1UL << 4),
+
+ /* E-FUSE access */
+ EFUSE_WRITE = 0x80000000,
+ EFUSE_WRITE_OK = 0x00000000,
+ EFUSE_READ = 0x00000000,
+ EFUSE_READ_OK = 0x80000000,
+ EFUSE_WRITE_V3 = 0x40000000,
+ EFUSE_WRITE_OK_V3 = 0x00000000,
+ EFUSE_READ_V3 = 0x80000000,
+ EFUSE_READ_OK_V3 = 0x00000000,
+ EFUSE_Reg_Mask = 0x03FF,
+ EFUSE_Reg_Shift = 8,
+ EFUSE_Check_Cnt = 300,
+ EFUSE_READ_FAIL = 0xFF,
+ EFUSE_Data_Mask = 0x000000FF,
+
+ /* GPIO */
+ GPIO_en = (1UL << 0),
+
+ /* New interrupt bits */
+ INT_CFG0_ENABLE_8125 = (1 << 0),
+ INT_CFG0_TIMEOUT0_BYPASS_8125 = (1 << 1),
+ INT_CFG0_MITIGATION_BYPASS_8125 = (1 << 2),
+ ISRIMR_V2_ROK_Q0 = (1 << 0),
+ ISRIMR_TOK_Q0 = (1 << 16),
+ ISRIMR_TOK_Q1 = (1 << 18),
+ ISRIMR_V2_LINKCHG = (1 << 21),
+};
+
#define PCI_VENDOR_ID_REALTEK 0x10EC
+#define RTL_PCI_REG_ADDR(hw, reg) ((u8 *)(hw)->mmio_addr + (reg))
+
+#define RTL_R8(hw, reg) rte_read8(RTL_PCI_REG_ADDR(hw, reg))
+#define RTL_R16(hw, reg) rtl_read16(RTL_PCI_REG_ADDR(hw, reg))
+#define RTL_R32(hw, reg) rtl_read32(RTL_PCI_REG_ADDR(hw, reg))
+
+#define RTL_W8(hw, reg, val) \
+ rte_write8((val), RTL_PCI_REG_ADDR(hw, reg))
+#define RTL_W16(hw, reg, val) \
+ rte_write16((rte_cpu_to_le_16(val)), RTL_PCI_REG_ADDR(hw, reg))
+#define RTL_W32(hw, reg, val) \
+ rte_write32((rte_cpu_to_le_32(val)), RTL_PCI_REG_ADDR(hw, reg))
+
+#define mdelay rte_delay_ms
+#define udelay rte_delay_us
+#define msleep rte_delay_ms
+#define usleep rte_delay_us
+
+static inline u32
+rtl_read32(volatile void *addr)
+{
+ return rte_le_to_cpu_32(rte_read32(addr));
+}
+
+static inline u32
+rtl_read16(volatile void *addr)
+{
+ return rte_le_to_cpu_16(rte_read16(addr));
+}
+
#endif
diff --git a/drivers/net/r8169/r8169_ethdev.h b/drivers/net/r8169/r8169_ethdev.h
index 5453832e04..04458dc497 100644
--- a/drivers/net/r8169/r8169_ethdev.h
+++ b/drivers/net/r8169/r8169_ethdev.h
@@ -15,6 +15,7 @@
struct rtl_hw {
u8 adapter_stopped;
+ u8 *mmio_addr;
};
struct rtl_sw_stats {
diff --git a/drivers/net/r8169/r8169_hw.c b/drivers/net/r8169/r8169_hw.c
new file mode 100644
index 0000000000..b3c0c23ecf
--- /dev/null
+++ b/drivers/net/r8169/r8169_hw.c
@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2024 Realtek Corporation. All rights reserved
+ */
+
+#include <sys/queue.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdint.h>
+#include <stdarg.h>
+
+#include <rte_ether.h>
+#include <ethdev_driver.h>
+
+#include "r8169_hw.h"
+#include "r8169_logs.h"
+
+void
+rtl_mac_ocp_write(struct rtl_hw *hw, u16 addr, u16 value)
+{
+ u32 data32;
+
+ data32 = addr / 2;
+ data32 <<= OCPR_Addr_Reg_shift;
+ data32 += value;
+ data32 |= OCPR_Write;
+
+ RTL_W32(hw, MACOCP, data32);
+}
+
+u16
+rtl_mac_ocp_read(struct rtl_hw *hw, u16 addr)
+{
+ u32 data32;
+ u16 data16 = 0;
+
+ data32 = addr / 2;
+ data32 <<= OCPR_Addr_Reg_shift;
+
+ RTL_W32(hw, MACOCP, data32);
+ data16 = (u16)RTL_R32(hw, MACOCP);
+
+ return data16;
+}
+
+u32
+rtl_csi_read(struct rtl_hw *hw, u32 addr)
+{
+ u32 cmd;
+ int i;
+ u32 value = 0;
+
+ cmd = CSIAR_Read | CSIAR_ByteEn << CSIAR_ByteEn_shift |
+ (addr & CSIAR_Addr_Mask);
+
+ RTL_W32(hw, CSIAR, cmd);
+
+ for (i = 0; i < 10; i++) {
+ udelay(100);
+
+ /* Check if the NIC has completed CSI read */
+ if (RTL_R32(hw, CSIAR) & CSIAR_Flag) {
+ value = RTL_R32(hw, CSIDR);
+ break;
+ }
+ }
+
+ udelay(20);
+
+ return value;
+}
+
+void
+rtl_csi_write(struct rtl_hw *hw, u32 addr, u32 value)
+{
+ u32 cmd;
+ int i;
+
+ RTL_W32(hw, CSIDR, value);
+ cmd = CSIAR_Write | CSIAR_ByteEn << CSIAR_ByteEn_shift |
+ (addr & CSIAR_Addr_Mask);
+
+ RTL_W32(hw, CSIAR, cmd);
+
+ for (i = 0; i < RTL_CHANNEL_WAIT_COUNT; i++) {
+ udelay(RTL_CHANNEL_WAIT_TIME);
+
+ /* Check if the NIC has completed CSI write */
+ if (!(RTL_R32(hw, CSIAR) & CSIAR_Flag))
+ break;
+ }
+
+ udelay(RTL_CHANNEL_EXIT_DELAY_TIME);
+}
+
diff --git a/drivers/net/r8169/r8169_hw.h b/drivers/net/r8169/r8169_hw.h
new file mode 100644
index 0000000000..e62b99a068
--- /dev/null
+++ b/drivers/net/r8169/r8169_hw.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2024 Realtek Corporation. All rights reserved
+ */
+
+#ifndef _R8169_HW_H_
+#define _R8169_HW_H_
+
+#include <stdint.h>
+
+#include <bus_pci_driver.h>
+#include <rte_ethdev.h>
+#include <rte_ethdev_core.h>
+
+#include "r8169_base.h"
+#include "r8169_ethdev.h"
+
+u16 rtl_mac_ocp_read(struct rtl_hw *hw, u16 addr);
+void rtl_mac_ocp_write(struct rtl_hw *hw, u16 addr, u16 value);
+
+u32 rtl_csi_read(struct rtl_hw *hw, u32 addr);
+void rtl_csi_write(struct rtl_hw *hw, u32 addr, u32 value);
+
+/* Channel wait count */
+#define RTL_CHANNEL_WAIT_COUNT 20000
+#define RTL_CHANNEL_WAIT_TIME 1 /* 1 us */
+#define RTL_CHANNEL_EXIT_DELAY_TIME 20 /* 20 us */
+
+#endif
+
--
2.34.1
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