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De-magic NIC rx and tx registers, cleanup

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logicog
2026-01-11 07:51:18 +01:00
parent 4e8eb6d766
commit d2d7ab7ff1
3 changed files with 33 additions and 29 deletions
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rtl837x_common.h
+15 -11
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@@ -36,8 +36,21 @@
// the RTL_FRAME_TAG_ID is used as part of an 8-byte tag. When VLAN is activated,
// the VLAN tag is inserted after the RTL tag
// See here for the RTL tag: https://github.com/torvalds/linux/commit/1521d5adfc2b557e15f97283c8b7ad688c3ebc40
#define RTL_TAG_SIZE 8
#define VLAN_TAG_SIZE 4
struct rtl_tag {
uint16_t tag; // This is 0x8899 for the RTL837X
uint8_t version; // Version is 4
uint8_t reason;
uint16_t flags;
uint16_t pmask; // A bit mask for a TX pkt, 4-bit port-number for RX
};
struct vlan_tag {
uint16_t svlan; // Service VLAN
uint16_t vlan;
};
#define RTL_TAG_SIZE (sizeof (struct rtl_tag))
#define VLAN_TAG_SIZE (sizeof (struct vlan_tag))
#define RTL_FRAME_TAG_ID 0x8899
// For RX and TX, an 8 byte header describing the frame to be moved to the Asic
@@ -70,15 +83,6 @@ struct flash_region_t {
extern __xdata uint8_t uip_buf[UIP_CONF_BUFFER_SIZE+2];
// 8899 04 0000 20 0004
struct rtl_tag {
uint16_t tag;
uint8_t version;
uint8_t reason;
uint16_t flags;
uint16_t pmask; // A bit mask for a TX pkt, 4-bit port-number for RX
};
// Headers for calls in the common code area (HOME/BANK0)
void print_string(__code char *p);
void print_long(__xdata uint32_t a);