net: stmmac: Apply half-duplex-less constraint for DW QoS Eth only
There are three DW MAC IP-cores which can have the multiple Tx/Rx queues enabled: DW GMAC v3.7+ with AV feature, DW QoS Eth v4.x/v5.x, DW XGMAC/XLGMAC Based on the respective HW databooks, only the DW QoS Eth IP-core doesn't support the half-duplex link mode in case if more than one queues enabled: "In multiple queue/channel configurations, for half-duplex operation, enable only the Q0/CH0 on Tx and Rx. For single queue/channel in full-duplex operation, any queue/channel can be enabled." The rest of the IP-cores don't have such constraint. Thus in order to have the constraint applied for the DW QoS Eth MACs only, let's move the it' implementation to the respective MAC-capabilities getter and make sure the getter is called in the queues re-init procedure. Fixes: b6cfffa7 ("stmmac: fix DMA channel hang in half-duplex mode") Signed-off-by:Serge Semin <fancer.lancer@gmail.com> Reviewed-by:
Romain Gantois <romain.gantois@bootlin.com> Signed-off-by:
Paolo Abeni <pabeni@redhat.com>
parent
24f4c99e
Please register or sign in to comment