Disabling DCBx in firmware automatically enables DCBx for control via host
lldp agents. Wait for an explicit setstate call from an lldp agents to enable
DCBx instead.
Fixes: 76bcb31efc06 ("cxgb4 : Add DCBx support codebase and dcbnl_ops")
Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
/* we're going to use Host DCB */
dcb->state = CXGB4_DCB_STATE_HOST;
dcb->supported = CXGB4_DCBX_HOST_SUPPORT;
- dcb->enabled = 1;
break;
}
{
struct port_info *pi = netdev2pinfo(dev);
+ /* If DCBx is host-managed, dcb is enabled by outside lldp agents */
+ if (pi->dcb.state == CXGB4_DCB_STATE_HOST) {
+ pi->dcb.enabled = enabled;
+ return 0;
+ }
+
/* Firmware doesn't provide any mechanism to control the DCB state.
*/
if (enabled != (pi->dcb.state == CXGB4_DCB_STATE_FW_ALLSYNCED))
#ifdef CONFIG_CHELSIO_T4_DCB
struct port_info *pi = netdev_priv(dev);
- return pi->dcb.state == CXGB4_DCB_STATE_FW_ALLSYNCED;
+ if (!pi->dcb.enabled)
+ return 0;
+
+ return ((pi->dcb.state == CXGB4_DCB_STATE_FW_ALLSYNCED) ||
+ (pi->dcb.state == CXGB4_DCB_STATE_HOST));
#else
return 0;
#endif