etrax: Allocate DMA connections at board level.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>

hw/axis_dev88.c

@@ -255,7 +255,7 @@ void axisdev88_init (ram_addr_t ram_size,
     DriveInfo *nand;
     qemu_irq irq[30], nmi[2], *cpu_irq;
     void *etraxfs_dmac;
-    struct etraxfs_dma_client *eth[2] = {NULL, NULL};
+    struct etraxfs_dma_client *dma_eth;
     int i;
     int nand_regs;
     int gpio_regs;
@@ -315,16 +315,18 @@ void axisdev88_init (ram_addr_t ram_size,
     }
 
     /* Add the two ethernet blocks.  */
-    eth[0] = etraxfs_eth_init(&nd_table[0], 0x30034000, 1);
-    if (nb_nics > 1)
-        eth[1] = etraxfs_eth_init(&nd_table[1], 0x30036000, 2);
+    dma_eth = qemu_mallocz(sizeof dma_eth[0] * 4); /* Allocate 4 channels.  */
+    etraxfs_eth_init(&nd_table[0], 0x30034000, 1, &dma_eth[0], &dma_eth[1]);
+    if (nb_nics > 1) {
+        etraxfs_eth_init(&nd_table[1], 0x30036000, 2, &dma_eth[2], &dma_eth[3]);
+    }
 
     /* The DMA Connector block is missing, hardwire things for now.  */
-    etraxfs_dmac_connect_client(etraxfs_dmac, 0, eth[0]);
-    etraxfs_dmac_connect_client(etraxfs_dmac, 1, eth[0] + 1);
-    if (eth[1]) {
-        etraxfs_dmac_connect_client(etraxfs_dmac, 6, eth[1]);
-        etraxfs_dmac_connect_client(etraxfs_dmac, 7, eth[1] + 1);
+    etraxfs_dmac_connect_client(etraxfs_dmac, 0, &dma_eth[0]);
+    etraxfs_dmac_connect_client(etraxfs_dmac, 1, &dma_eth[1]);
+    if (nb_nics > 1) {
+        etraxfs_dmac_connect_client(etraxfs_dmac, 6, &dma_eth[2]);
+        etraxfs_dmac_connect_client(etraxfs_dmac, 7, &dma_eth[3]);
     }
 
     /* 2 timers.  */

hw/etraxfs.h

@@ -25,4 +25,6 @@
 #include "etraxfs_dma.h"
 
 qemu_irq *cris_pic_init_cpu(CPUState *env);
-void *etraxfs_eth_init(NICInfo *nd, target_phys_addr_t base, int phyaddr);
+void etraxfs_eth_init(NICInfo *nd, target_phys_addr_t base, int phyaddr,
+                      struct etraxfs_dma_client *dma_out,
+                      struct etraxfs_dma_client *dma_in);

hw/etraxfs_eth.c

@@ -562,7 +562,11 @@ static void eth_cleanup(VLANClientState *nc)
 
         cpu_unregister_io_memory(eth->ethregs);
 
-        qemu_free(eth->dma_out);
+	/* Disconnect the client.  */
+	eth->dma_out->client.push = NULL;
+	eth->dma_out->client.opaque = NULL;
+	eth->dma_in->client.opaque = NULL;
+	eth->dma_in->client.pull = NULL;
         qemu_free(eth);
 }
 
@@ -575,23 +579,23 @@ static NetClientInfo net_etraxfs_info = {
 	.link_status_changed = eth_set_link,
 };
 
-void *etraxfs_eth_init(NICInfo *nd, target_phys_addr_t base, int phyaddr)
+void etraxfs_eth_init(NICInfo *nd, target_phys_addr_t base, int phyaddr,
+                       struct etraxfs_dma_client *dma_out,
+                       struct etraxfs_dma_client *dma_in)
 {
-	struct etraxfs_dma_client *dma = NULL;	
 	struct fs_eth *eth = NULL;
 
 	qemu_check_nic_model(nd, "fseth");
 
-	dma = qemu_mallocz(sizeof *dma * 2);
 	eth = qemu_mallocz(sizeof *eth);
 
-	dma[0].client.push = eth_tx_push;
-	dma[0].client.opaque = eth;
-	dma[1].client.opaque = eth;
-	dma[1].client.pull = NULL;
+	dma_out->client.push = eth_tx_push;
+	dma_out->client.opaque = eth;
+	dma_in->client.opaque = eth;
+	dma_in->client.pull = NULL;
 
-	eth->dma_out = dma;
-	eth->dma_in = dma + 1;
+	eth->dma_out = dma_out;
+	eth->dma_in = dma_in;
 
 	/* Connect the phy.  */
 	eth->phyaddr = phyaddr & 0x1f;
@@ -608,6 +612,4 @@ void *etraxfs_eth_init(NICInfo *nd, target_phys_addr_t base, int phyaddr)
 
 	eth->nic = qemu_new_nic(&net_etraxfs_info, &eth->conf,
 				nd->model, nd->name, eth);
-
-	return dma;
 }