Messages in this thread Patch in this message | | | From | Rakesh Sankaranarayanan <> | Subject | [RFC PATCH net-next 06/11] net: dsa: microchip: lan937x: get cascade tag protocol | Date | Thu, 2 Feb 2023 18:29:25 +0530 |
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Update ksz_get_tag_protocol to return separate tag protocol if switch is connected in cascade mode. Variable ds->dst->last_switch will contain total number of switches registered. For cascaded connection alone, this will be more than zero.
Signed-off-by: Rakesh Sankaranarayanan <rakesh.sankaranarayanan@microchip.com> --- drivers/net/dsa/microchip/ksz_common.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c index adf8391dd29f..2160a3e61a5a 100644 --- a/drivers/net/dsa/microchip/ksz_common.c +++ b/drivers/net/dsa/microchip/ksz_common.c @@ -2567,9 +2567,13 @@ static enum dsa_tag_protocol ksz_get_tag_protocol(struct dsa_switch *ds, dev->chip_id == KSZ9567_CHIP_ID) proto = DSA_TAG_PROTO_KSZ9477; - if (is_lan937x(dev)) + if (is_lan937x(dev)) { proto = DSA_TAG_PROTO_LAN937X_VALUE; + if (ds->dst->last_switch) + proto = DSA_TAG_PROTO_LAN937X_CASCADE_VALUE; + } + return proto; } -- 2.34.1
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