[RFC Patch net-next v1 1/9] r8169: add some register definitions

javen
2026-04-20T02:20:55Z

From: Javen Xu <javen_xu@realsil.com.cn>

To support rss, this patch adds some macro definitions and register
definitions.

Signed-off-by: Javen Xu <javen_xu@realsil.com.cn>
---
drivers/net/ethernet/realtek/r8169_main.c | 75 +++++++++++++++++++++++
1 file changed, 75 insertions(+)

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 791277e750ba..0fbec27e4a0d 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -77,6 +77,23 @@
#define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc))
#define R8169_TX_STOP_THRS (MAX_SKB_FRAGS + 1)
#define R8169_TX_START_THRS (2 * R8169_TX_STOP_THRS)
+#define R8169_MAX_RX_QUEUES 8
+#define R8169_MAX_TX_QUEUES 1
+#define R8169_MAX_MSIX_VEC 32
+#define R8127_MAX_TX_QUEUES 1
+#define R8127_MAX_RX_QUEUES 8
+#define R8127_MAX_IRQ 32
+#define R8127_MIN_IRQ 30
+#define RTL8127_RSS_KEY_SIZE 40
+#define RSS_CPU_NUM_OFFSET 16
+#define RSS_MASK_BITS_OFFSET 8
+#define RTL8127_MAX_INDIRECTION_TABLE_ENTRIES 128
+#define RXS_8125B_RSS_UDP_V4 BIT(27)
+#define RXS_8125_RSS_IPV4_V4 BIT(28)
+#define RXS_8125_RSS_IPV6_V4 BIT(29)
+#define RXS_8125_RSS_TCP_V4 BIT(30)
+#define RTL8127_RXS_RSS_L3_TYPE_MASK_V4 (RXS_8125_RSS_IPV4_V4 | RXS_8125_RSS_IPV6_V4)
+#define RTL8127_RXS_RSS_L4_TYPE_MASK_V4 (RXS_8125_RSS_TCP_V4 | RXS_8125B_RSS_UDP_V4)

#define OCP_STD_PHY_BASE 0xa400

@@ -435,6 +452,8 @@ enum rtl8125_registers {
#define INT_CFG0_CLKREQEN BIT(3)
IntrMask_8125 = 0x38,
IntrStatus_8125 = 0x3c,
+ IntrMask1_8125 = 0x800,
+ IntrStatus1_8125 = 0x802,
INT_CFG1_8125 = 0x7a,
LEDSEL2 = 0x84,
LEDSEL1 = 0x86,
@@ -444,6 +463,36 @@ enum rtl8125_registers {
RSS_CTRL_8125 = 0x4500,
Q_NUM_CTRL_8125 = 0x4800,
EEE_TXIDLE_TIMER_8125 = 0x6048,
+ TNPDS_Q1_LOW = 0x2100,
+ RDSAR_Q1_LOW = 0x4000,
+ IMR_V2_SET_REG_8125 = 0x0d0c,
+ IMR_V2_CLEAR_REG_8125 = 0x0d00,
+ IMR_V4_L2_CLEAR_REG_8125 = 0x0d10,
+ ISR_V2_8125 = 0x0d04,
+ ISR_V4_L2_8125 = 0x0d14,
+};
+
+enum rtl8127_msix_id {
+ MSIX_ID_V4_LINKCHG = 29,
+};
+
+enum rtl8127_rss_register_content {
+ RSS_CTRL_TCP_IPV4_SUPP = (1 << 0),
+ RSS_CTRL_IPV4_SUPP = (1 << 1),
+ RSS_CTRL_TCP_IPV6_SUPP = (1 << 2),
+ RSS_CTRL_IPV6_SUPP = (1 << 3),
+ RSS_CTRL_IPV6_EXT_SUPP = (1 << 4),
+ RSS_CTRL_TCP_IPV6_EXT_SUPP = (1 << 5),
+ RSS_CTRL_UDP_IPV4_SUPP = (1 << 11),
+ RSS_CTRL_UDP_IPV6_SUPP = (1 << 12),
+ RSS_CTRL_UDP_IPV6_EXT_SUPP = (1 << 13),
+ RSS_INDIRECTION_TBL_8125_V2 = 0x4700,
+ RSS_KEY_8125 = 0x4600,
+};
+
+enum rtl8127_rss_flag {
+ RTL_8125_RSS_FLAG_HASH_UDP_IPV4 = (1 << 0),
+ RTL_8125_RSS_FLAG_HASH_UDP_IPV6 = (1 << 1),
};

#define LEDSEL_MASK_8125 0x23f
@@ -474,6 +523,10 @@ enum rtl_register_content {
RxRUNT = (1 << 20),
RxCRC = (1 << 19),

+ RxRES_RSS = (1 << 22),
+ RxRUNT_RSS = (1 << 21),
+ RxCRC_RSS = (1 << 20),
+
/* ChipCmdBits */
StopReq = 0x80,
CmdReset = 0x10,
@@ -576,6 +629,9 @@ enum rtl_register_content {

/* magic enable v2 */
MagicPacket_v2 = (1 << 16), /* Wake up when receives a Magic Packet */
+ ISRIMR_V6_LINKCHG = (1 << 29),
+ ISRIMR_V6_TOK_Q0 = (1 << 8),
+ ISRIMR_V6_ROK_Q0 = (1 << 0),
};

enum rtl_desc_bit {
@@ -633,6 +689,11 @@ enum rtl_rx_desc_bit {
#define RxProtoIP (PID1 | PID0)
#define RxProtoMask RxProtoIP

+ RxUDPT_v4 = (1 << 19),
+ RxTCPT_v4 = (1 << 18),
+ RxUDPF_v4 = (1 << 16), /* UDP/IP checksum failed */
+ RxTCPF_v4 = (1 << 15), /* TCP/IP checksum failed */
+
IPFail = (1 << 16), /* IP checksum failed */
UDPFail = (1 << 15), /* UDP/IP checksum failed */
TCPFail = (1 << 14), /* TCP/IP checksum failed */
@@ -659,6 +720,11 @@ struct RxDesc {
__le64 addr;
};

+enum features {
+ RTL_FEATURE_MSI = (1 << 1),
+ RTL_FEATURE_MSIX = (1 << 2),
+};
+
struct ring_info {
struct sk_buff *skb;
u32 len;
@@ -728,6 +794,13 @@ enum rtl_dash_type {
RTL_DASH_25_BP,
};

+enum rx_desc_ring_type {
+ RX_DESC_RING_TYPE_UNKNOWN = 0,
+ RX_DESC_RING_TYPE_DEAFULT,
+ RX_DESC_RING_TYPE_RSS,
+ RX_DESC_RING_TYPE_MAX
+};
+
struct rtl8169_private {
void __iomem *mmio_addr; /* memory map physical address */
struct pci_dev *pci_dev;
@@ -763,6 +836,8 @@ struct rtl8169_private {
unsigned aspm_manageable:1;
unsigned dash_enabled:1;
bool sfp_mode:1;
+ bool rss_support:1;
+ bool rss_enable:1;
dma_addr_t counters_phys_addr;
struct rtl8169_counters *counters;
struct rtl8169_tc_offsets tc_offset;
--
2.43.0