diff options
Diffstat (limited to 'target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl838x.c')
| -rw-r--r-- | target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl838x.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl838x.c b/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl838x.c index 2d24eaa337..15a486d724 100644 --- a/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl838x.c +++ b/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl838x.c @@ -491,6 +491,24 @@ static void rtl838x_vlan_profile_setup(int profile) rtl838x_write_mcast_pmask(UNKNOWN_MC_PMASK, 0x1fffffff); } +static void rtl838x_l2_learning_setup(void) +{ + /* Set portmask for broadcast traffic and unknown unicast address flooding + * to the reserved entry in the portmask table used also for + * multicast flooding */ + sw_w32(UNKNOWN_MC_PMASK << 12 | UNKNOWN_MC_PMASK, RTL838X_L2_FLD_PMSK); + + /* Enable learning constraint system-wide (bit 0), per-port (bit 1) + * and per vlan (bit 2) */ + sw_w32(0x7, RTL838X_L2_LRN_CONSTRT_EN); + + // Limit learning to maximum: 16k entries, after that just flood (bits 0-1) + sw_w32((0x3fff << 2) | 0, RTL838X_L2_LRN_CONSTRT); + + // Do not trap ARP packets to CPU_PORT + sw_w32(0, RTL838X_SPCL_TRAP_ARP_CTRL); +} + static inline int rtl838x_vlan_port_egr_filter(int port) { return RTL838X_VLAN_PORT_EGR_FLTR; @@ -1605,6 +1623,7 @@ const struct rtl838x_reg rtl838x_reg = { .pie_rule_write = rtl838x_pie_rule_write, .pie_rule_add = rtl838x_pie_rule_add, .pie_rule_rm = rtl838x_pie_rule_rm, + .l2_learning_setup = rtl838x_l2_learning_setup, .packet_cntr_read = rtl838x_packet_cntr_read, .packet_cntr_clear = rtl838x_packet_cntr_clear, }; |