From 680060d3e02d175516832e9af058ffe96ecc4cdc Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Fri, 23 Oct 2015 11:38:07 -0700 Subject: net: dsa: bcm_sf2: Implement FDB operations Add support for the FDB add, delete, and dump operations. The add and delete operations are implemented using directed ARL operations using the specified MAC address and consist in a read operation, write and readback operation. The dump operation consists in using the ARL search and software filtering entries which are not for the desired port. Signed-off-by: Florian Fainelli Reviewed-by: Vivien Didelot Signed-off-by: David S. Miller --- drivers/net/dsa/bcm_sf2.h | 56 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) (limited to 'drivers/net/dsa/bcm_sf2.h') diff --git a/drivers/net/dsa/bcm_sf2.h b/drivers/net/dsa/bcm_sf2.h index 789d7b7737da..cc98abc0aaf3 100644 --- a/drivers/net/dsa/bcm_sf2.h +++ b/drivers/net/dsa/bcm_sf2.h @@ -19,6 +19,8 @@ #include #include #include +#include +#include #include @@ -50,6 +52,60 @@ struct bcm_sf2_port_status { u32 vlan_ctl_mask; }; +struct bcm_sf2_arl_entry { + u8 port; + u8 mac[ETH_ALEN]; + u16 vid; + u8 is_valid:1; + u8 is_age:1; + u8 is_static:1; +}; + +static inline void bcm_sf2_mac_from_u64(u64 src, u8 *dst) +{ + unsigned int i; + + for (i = 0; i < ETH_ALEN; i++) + dst[ETH_ALEN - 1 - i] = (src >> (8 * i)) & 0xff; +} + +static inline u64 bcm_sf2_mac_to_u64(const u8 *src) +{ + unsigned int i; + u64 dst = 0; + + for (i = 0; i < ETH_ALEN; i++) + dst |= (u64)src[ETH_ALEN - 1 - i] << (8 * i); + + return dst; +} + +static inline void bcm_sf2_arl_to_entry(struct bcm_sf2_arl_entry *ent, + u64 mac_vid, u32 fwd_entry) +{ + memset(ent, 0, sizeof(*ent)); + ent->port = fwd_entry & PORTID_MASK; + ent->is_valid = !!(fwd_entry & ARL_VALID); + ent->is_age = !!(fwd_entry & ARL_AGE); + ent->is_static = !!(fwd_entry & ARL_STATIC); + bcm_sf2_mac_from_u64(mac_vid, ent->mac); + ent->vid = mac_vid >> VID_SHIFT; +} + +static inline void bcm_sf2_arl_from_entry(u64 *mac_vid, u32 *fwd_entry, + const struct bcm_sf2_arl_entry *ent) +{ + *mac_vid = bcm_sf2_mac_to_u64(ent->mac); + *mac_vid |= (u64)(ent->vid & VID_MASK) << VID_SHIFT; + *fwd_entry = ent->port & PORTID_MASK; + if (ent->is_valid) + *fwd_entry |= ARL_VALID; + if (ent->is_static) + *fwd_entry |= ARL_STATIC; + if (ent->is_age) + *fwd_entry |= ARL_AGE; +} + struct bcm_sf2_priv { /* Base registers, keep those in order with BCM_SF2_REGS_NAME */ void __iomem *core; -- cgit v1.2.3