net/ucc_geth: Assign six threads to Rx for UEC

In the case the QE has 46 SNUMs for the threads to support four UCC
Ethernet at 1000Base-T simultaneously.

Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c
index 8287bc19868b5d0b2c0ada78b2a92616e3f4df79..9dd16c9b1a10a1c9cd29f36750a3faca359ab14d 100644 (file)
--- a/drivers/net/ucc_geth.c
+++ b/drivers/net/ucc_geth.c
@@ -3710,7 +3710,15 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
                ug_info->uf_info.utfet = UCC_GETH_UTFET_GIGA_INIT;
                ug_info->uf_info.utftt = UCC_GETH_UTFTT_GIGA_INIT;
                ug_info->numThreadsTx = UCC_GETH_NUM_OF_THREADS_4;
-               ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_4;
+
+               /* If QE's snum number is 46 which means we need to support
+                * 4 UECs at 1000Base-T simultaneously, we need to allocate
+                * more Threads to Rx.
+                */
+               if (qe_get_num_of_snums() == 46)
+                       ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_6;
+               else
+                       ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_4;
        }
 
        if (netif_msg_probe(&debug))