QE UEC: Extend number of supported UECs to 4

This patch extends the number of supported UECs to 4. Note that the
problem of QE thread resources exhaustion is resolved by setting the
correct number of QE threads according to Ethernet type (GBE or FE).

Signed-off-by: David Saada <david.saada@ecitele.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>

drivers/qe/uec.c

@@ -40,8 +40,13 @@ static uec_info_t eth1_uec_info = {
 		.tx_clock	= CFG_UEC1_TX_CLK,
 		.eth_type	= CFG_UEC1_ETH_TYPE,
 	},
+#if (CFG_UEC1_ETH_TYPE == FAST_ETH)
+	.num_threads_tx		= UEC_NUM_OF_THREADS_1,
+	.num_threads_rx		= UEC_NUM_OF_THREADS_1,
+#else
 	.num_threads_tx		= UEC_NUM_OF_THREADS_4,
 	.num_threads_rx		= UEC_NUM_OF_THREADS_4,
+#endif
 	.riscTx			= QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 	.riscRx			= QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 	.tx_bd_ring_len		= 16,
@@ -58,8 +63,13 @@ static uec_info_t eth2_uec_info = {
 		.tx_clock	= CFG_UEC2_TX_CLK,
 		.eth_type	= CFG_UEC2_ETH_TYPE,
 	},
+#if (CFG_UEC2_ETH_TYPE == FAST_ETH)
+	.num_threads_tx		= UEC_NUM_OF_THREADS_1,
+	.num_threads_rx		= UEC_NUM_OF_THREADS_1,
+#else
 	.num_threads_tx		= UEC_NUM_OF_THREADS_4,
 	.num_threads_rx		= UEC_NUM_OF_THREADS_4,
+#endif
 	.riscTx			= QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 	.riscRx			= QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 	.tx_bd_ring_len		= 16,
@@ -68,7 +78,6 @@ static uec_info_t eth2_uec_info = {
 	.enet_interface		= CFG_UEC2_INTERFACE_MODE,
 };
 #endif
-
 #ifdef CONFIG_UEC_ETH3
 static uec_info_t eth3_uec_info = {
 	.uf_info		= {
@@ -77,8 +86,13 @@ static uec_info_t eth3_uec_info = {
 		.tx_clock	= CFG_UEC3_TX_CLK,
 		.eth_type	= CFG_UEC3_ETH_TYPE,
 	},
+#if (CFG_UEC3_ETH_TYPE == FAST_ETH)
+	.num_threads_tx		= UEC_NUM_OF_THREADS_1,
+	.num_threads_rx		= UEC_NUM_OF_THREADS_1,
+#else
 	.num_threads_tx		= UEC_NUM_OF_THREADS_4,
 	.num_threads_rx		= UEC_NUM_OF_THREADS_4,
+#endif
 	.riscTx			= QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 	.riscRx			= QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 	.tx_bd_ring_len		= 16,
@@ -87,6 +101,29 @@ static uec_info_t eth3_uec_info = {
 	.enet_interface		= CFG_UEC3_INTERFACE_MODE,
 };
 #endif
+#ifdef CONFIG_UEC_ETH4
+static uec_info_t eth4_uec_info = {
+	.uf_info		= {
+		.ucc_num	= CFG_UEC4_UCC_NUM,
+		.rx_clock	= CFG_UEC4_RX_CLK,
+		.tx_clock	= CFG_UEC4_TX_CLK,
+		.eth_type	= CFG_UEC4_ETH_TYPE,
+	},
+#if (CFG_UEC4_ETH_TYPE == FAST_ETH)
+	.num_threads_tx		= UEC_NUM_OF_THREADS_1,
+	.num_threads_rx		= UEC_NUM_OF_THREADS_1,
+#else
+	.num_threads_tx		= UEC_NUM_OF_THREADS_4,
+	.num_threads_rx		= UEC_NUM_OF_THREADS_4,
+#endif
+	.riscTx			= QE_RISC_ALLOCATION_RISC1_AND_RISC2,
+	.riscRx			= QE_RISC_ALLOCATION_RISC1_AND_RISC2,
+	.tx_bd_ring_len		= 16,
+	.rx_bd_ring_len		= 16,
+	.phy_address		= CFG_UEC4_PHY_ADDR,
+	.enet_interface		= CFG_UEC4_INTERFACE_MODE,
+};
+#endif
 
 static int uec_mac_enable(uec_private_t *uec, comm_dir_e mode)
 {
@@ -1262,6 +1299,10 @@ int uec_initialize(int index)
 #ifdef CONFIG_UEC_ETH3
 		uec_info = &eth3_uec_info;
 #endif
+	} else if (index == 3) {
+#ifdef CONFIG_UEC_ETH4
+		uec_info = &eth4_uec_info;
+#endif
 	} else {
 		printf("%s: index is illegal.\n", __FUNCTION__);
 		return -EINVAL;

net/eth.c

@@ -217,6 +217,9 @@ int eth_initialize(bd_t *bis)
 #if defined(CONFIG_UEC_ETH3)
 	uec_initialize(2);
 #endif
+#if defined(CONFIG_UEC_ETH4)
+	uec_initialize(3);
+#endif
 
 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
 	fec_initialize(bis);