ice: fix Get Tx Topology AQ command error on E830

The Get Tx Topology AQ command (opcode 0x0418) has different read flag
requirements depending on the hardware/firmware. For E810, E822, and E823
firmware the read flag must be set, and for newer hardware (E825 and E830)
it must not be set.

This results in failure to configure Tx topology and the following warning
message during probe:

  DDP package does not support Tx scheduling layers switching feature -
  please update to the latest DDP package and try again

The current implementation only handles E825-C but not E830. It is
confusing as we first check ice_is_e825c() and then set the flag in the set
case. Finally, we check ice_is_e825c() again and set the flag for all other
hardware in both the set and get case.

Instead, notice that we always need the read flag for set, but only need
the read flag for get on E810, E822, and E823 firmware. Fix the logic to
check the MAC type and set the read flag in get only on the older devices
which require it.

Fixes: ba1124f ("ice: Add E830 device IDs, MAC type and registers")
Signed-off-by: Paul Greenwalt <[email protected]>
Signed-off-by: Jacob Keller <[email protected]>
Reviewed-by: Michal Swiatkowski <[email protected]>
Tested-by: Krishneil Singh <[email protected]>
Signed-off-by: Tony Nguyen <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: pgreenwa

drivers/net/ethernet/intel/ice/ice_ddp.c

@@ -2345,15 +2345,15 @@ ice_get_set_tx_topo(struct ice_hw *hw, u8 *buf, u16 buf_size,
 			cmd->set_flags |= ICE_AQC_TX_TOPO_FLAGS_SRC_RAM |
 					  ICE_AQC_TX_TOPO_FLAGS_LOAD_NEW;
 
-		if (hw->mac_type == ICE_MAC_GENERIC_3K_E825)
-			desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
+		desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
 	} else {
 		ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_tx_topo);
 		cmd->get_flags = ICE_AQC_TX_TOPO_GET_RAM;
-	}
 
-	if (hw->mac_type != ICE_MAC_GENERIC_3K_E825)
-		desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
+		if (hw->mac_type == ICE_MAC_E810 ||
+		    hw->mac_type == ICE_MAC_GENERIC)
+			desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
+	}
 
 	status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
 	if (status)