diff options
| author | Florian Fainelli <f.fainelli@gmail.com> | 2020-04-20 20:26:54 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-04-22 12:50:41 -0700 |
| commit | 6344dbde6a27d10d16246d734b968f84887841e2 (patch) | |
| tree | 6fe692713d684f290ee80ed9a1d99d30a0b283f1 /drivers/net/dsa/b53/b53_regs.h | |
| parent | c2e77a18a7ed65eb48f6e389b6a59a0fd753646a (diff) | |
net: dsa: b53: Rework ARL bin logic
When asking the ARL to read a MAC address, we will get a number of bins
returned in a single read. Out of those bins, there can essentially be 3
states:
- all bins are full, we have no space left, and we can either replace an
existing address or return that full condition
- the MAC address was found, then we need to return its bin index and
modify that one, and only that one
- the MAC address was not found and we have a least one bin free, we use
that bin index location then
The code would unfortunately fail on all counts.
Fixes: 1da6df85c6fb ("net: dsa: b53: Implement ARL add/del/dump operations")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/b53/b53_regs.h')
| -rw-r--r-- | drivers/net/dsa/b53/b53_regs.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/dsa/b53/b53_regs.h b/drivers/net/dsa/b53/b53_regs.h index d914e756cdab..14f617e9173d 100644 --- a/drivers/net/dsa/b53/b53_regs.h +++ b/drivers/net/dsa/b53/b53_regs.h @@ -323,6 +323,9 @@ #define ARLTBL_STATIC BIT(15) #define ARLTBL_VALID BIT(16) +/* Maximum number of bin entries in the ARL for all switches */ +#define B53_ARLTBL_MAX_BIN_ENTRIES 4 + /* ARL Search Control Register (8 bit) */ #define B53_ARL_SRCH_CTL 0x50 #define B53_ARL_SRCH_CTL_25 0x20 |