[RFC Patch net-next v2 1/8] r8169: add some register definitions

[javen]

From: Javen Xu <javen_xu@xxxxxxxxxxxxxx>

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

Signed-off-by: Javen Xu <javen_xu@xxxxxxxxxxxxxx>
---
changes in v2:
 - modify the name, avoid using camel names
 - change the name more reasonable, global
---
 drivers/net/ethernet/realtek/r8169_main.c | 58 +++++++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 791277e750ba..4f56f8b420fe 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -77,6 +77,21 @@
 #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_MSIX_VEC	32
+#define R8127_MAX_RX_QUEUES	8
+#define R8127_MAX_IRQ		32
+#define R8127_MIN_IRQ		30
+#define RTL_RSS_KEY_SIZE	40
+#define RSS_CPU_NUM_OFFSET	16
+#define RSS_MASK_BITS_OFFSET	8
+#define RTL_MAX_INDIRECTION_TABLE_ENTRIES 128
+#define RXS_RSS_UDP BIT(27)
+#define RXS_RSS_IPV4 BIT(28)
+#define RXS_RSS_IPV6 BIT(29)
+#define RXS_RSS_TCP BIT(30)
+#define RXS_RSS_L3_TYPE_MASK (RXS_RSS_IPV4 | RXS_RSS_IPV6)
+#define RXS_RSS_L4_TYPE_MASK (RXS_RSS_TCP | RXS_RSS_UDP)
 
 #define OCP_STD_PHY_BASE	0xa400
 
@@ -435,6 +450,8 @@ enum rtl8125_registers {
 #define INT_CFG0_CLKREQEN		BIT(3)
 	IntrMask_8125		= 0x38,
 	IntrStatus_8125		= 0x3c,
+	INTR_VEC_MAP_MASK	= 0x800,
+	INTR_VEC_MAP_STATUS	= 0x802,
 	INT_CFG1_8125		= 0x7a,
 	LEDSEL2			= 0x84,
 	LEDSEL1			= 0x86,
@@ -444,8 +461,32 @@ 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_SET_VEC_MAP_REG	= 0x0d0c,
+	IMR_CLEAR_VEC_MAP_REG	= 0x0d00,
+	ISR_VEC_MAP_REG		= 0x0d04,
 };
 
+#define MSIX_ID_VEC_MAP_LINKCHG		29
+#define RSS_CTRL_TCP_IPV4_SUPP		BIT(0)
+#define RSS_CTRL_IPV4_SUPP		BIT(1)
+#define RSS_CTRL_TCP_IPV6_SUPP		BIT(2)
+#define RSS_CTRL_IPV6_SUPP		BIT(3)
+#define RSS_CTRL_IPV6_EXT_SUPP		BIT(4)
+#define RSS_CTRL_TCP_IPV6_EXT_SUPP	BIT(5)
+#define RSS_CTRL_UDP_IPV4_SUPP		BIT(6)
+#define RSS_CTRL_UDP_IPV6_SUPP		BIT(7)
+#define RSS_CTRL_UDP_IPV6_EXT_SUPP	BIT(8)
+#define RTL_RSS_FLAG_HASH_UDP_IPV4	BIT(0)
+#define RTL_RSS_FLAG_HASH_UDP_IPV6	BIT(1)
+#define	RX_RES_RSS			BIT(22)
+#define	RX_RUNT_RSS			BIT(21)
+#define	RX_CRC_RSS			BIT(20)
+#define RTL_VEC_MAP_ENABLE		BIT(0)
+#define RSS_INDIRECTION_TBL_REG		0x4700
+#define RSS_KEY_REG			0x4600
+
 #define LEDSEL_MASK_8125	0x23f
 
 #define RX_VLAN_INNER_8125	BIT(22)
@@ -576,6 +617,9 @@ enum rtl_register_content {
 
 	/* magic enable v2 */
 	MagicPacket_v2	= (1 << 16),	/* Wake up when receives a Magic Packet */
+#define	ISRIMR_LINKCHG	BIT(29)
+#define	ISRIMR_TOK_Q0	BIT(8)
+#define	ISRIMR_ROK_Q0	BIT(0)
 };
 
 enum rtl_desc_bit {
@@ -633,6 +677,11 @@ enum rtl_rx_desc_bit {
 #define RxProtoIP	(PID1 | PID0)
 #define RxProtoMask	RxProtoIP
 
+#define	RX_UDPT_DESC_RSS	BIT(19)
+#define	RX_TCPT_DESC_RSS	BIT(18)
+#define	RX_UDPF_DESC_RSS	BIT(16) /* UDP/IP checksum failed */
+#define	RX_TCPF_DESC_RSS	BIT(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 */
@@ -728,6 +777,13 @@ enum rtl_dash_type {
 	RTL_DASH_25_BP,
 };
 
+enum rx_desc_ring_type {
+	RX_DESC_RING_TYPE_UNKNOWN = 0,
+	RX_DESC_RING_TYPE_DEFAULT,
+	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 +819,8 @@ 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