[PATCH 18/20] hw/net/xilinx_ethlite: Map TX_CTRL as MMIO

[Philippe Mathieu-Daudé]

Add TX_CTRL to the TX registers MMIO region.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/net/xilinx_ethlite.c | 56 +++++++++++++++++++----------------------
 1 file changed, 26 insertions(+), 30 deletions(-)

diff --git a/hw/net/xilinx_ethlite.c b/hw/net/xilinx_ethlite.c
index f7a5b1620a..f681b91769 100644
--- a/hw/net/xilinx_ethlite.c
+++ b/hw/net/xilinx_ethlite.c
@@ -39,10 +39,8 @@
 
 #define R_TX_BUF0     0
 #define A_TX_BASE0    0x07f4
-#define R_TX_CTRL0    (0x07fc / 4)
 #define R_TX_BUF1     (0x0800 / 4)
 #define A_TX_BASE1    0x0ff4
-#define R_TX_CTRL1    (0x0ffc / 4)
 
 #define R_RX_BUF0     (0x1000 / 4)
 #define A_RX_BASE0    0x17fc
@@ -55,6 +53,7 @@
 enum {
     TX_LEN =  0,
     TX_GIE =  1,
+    TX_CTRL = 2,
     TX_MAX
 };
 
@@ -71,6 +70,7 @@ enum {
 
 typedef struct XlnxXpsEthLitePort
 {
+    MemoryRegion txio;
     MemoryRegion rxio;
 
     struct {
@@ -143,6 +143,9 @@ static uint64_t port_tx_read(void *opaque, hwaddr addr, 
unsigned int size)
         case TX_GIE:
             r = s->port[port_index].reg.tx_gie;
             break;
+        case TX_CTRL:
+            r = s->port[port_index].reg.tx_ctrl;
+            break;
         default:
             g_assert_not_reached();
     }
@@ -154,6 +157,7 @@ static void port_tx_write(void *opaque, hwaddr addr, 
uint64_t value,
                           unsigned int size)
 {
     XlnxXpsEthLite *s = opaque;
+    unsigned port_index = addr_to_port_index(addr);
 
     switch (addr >> 2) {
         case TX_LEN:
@@ -162,6 +166,26 @@ static void port_tx_write(void *opaque, hwaddr addr, 
uint64_t value,
         case TX_GIE:
             s->port[port_index].reg.tx_gie = value;
             break;
+        case TX_CTRL:
+            if ((value & (CTRL_P | CTRL_S)) == CTRL_S) {
+                qemu_send_packet(qemu_get_queue(s->nic),
+                                 txbuf_ptr(s, port_index),
+                                 s->port[port_index].reg.tx_len);
+                if (s->port[port_index].reg.tx_ctrl & CTRL_I) {
+                    eth_pulse_irq(s);
+                }
+            } else if ((value & (CTRL_P | CTRL_S)) == (CTRL_P | CTRL_S)) {
+                memcpy(&s->conf.macaddr.a[0], txbuf_ptr(s, port_index), 6);
+                if (s->port[port_index].reg.tx_ctrl & CTRL_I) {
+                    eth_pulse_irq(s);
+                }
+            }
+            /*
+             * We are fast and get ready pretty much immediately
+             * so we actually never flip the S nor P bits to one.
+             */
+            s->port[port_index].reg.tx_ctrl = value & ~(CTRL_P | CTRL_S);
+            break;
         default:
             g_assert_not_reached();
     }
@@ -232,18 +256,12 @@ static uint64_t
 eth_read(void *opaque, hwaddr addr, unsigned int size)
 {
     XlnxXpsEthLite *s = opaque;
-    unsigned port_index = addr_to_port_index(addr);
     uint32_t r = 0;
 
     addr >>= 2;
 
     switch (addr)
     {
-        case R_TX_CTRL1:
-        case R_TX_CTRL0:
-            r = s->port[port_index].reg.tx_ctrl;
-            break;
-
         default:
             r = tswap32(s->regs[addr]);
             break;
@@ -256,33 +274,11 @@ eth_write(void *opaque, hwaddr addr,
           uint64_t val64, unsigned int size)
 {
     XlnxXpsEthLite *s = opaque;
-    unsigned int port_index = addr_to_port_index(addr);
     uint32_t value = val64;
 
     addr >>= 2;
     switch (addr) 
     {
-        case R_TX_CTRL0:
-        case R_TX_CTRL1:
-            if ((value & (CTRL_P | CTRL_S)) == CTRL_S) {
-                qemu_send_packet(qemu_get_queue(s->nic),
-                                 txbuf_ptr(s, port_index),
-                                 s->port[port_index].reg.tx_len);
-                if (s->port[port_index].reg.tx_ctrl & CTRL_I) {
-                    eth_pulse_irq(s);
-                }
-            } else if ((value & (CTRL_P | CTRL_S)) == (CTRL_P | CTRL_S)) {
-                memcpy(&s->conf.macaddr.a[0], txbuf_ptr(s, port_index), 6);
-                if (s->port[port_index].reg.tx_ctrl & CTRL_I) {
-                    eth_pulse_irq(s);
-                }
-            }
-
-            /* We are fast and get ready pretty much immediately so
-               we actually never flip the S nor P bits to one.  */
-            s->port[port_index].reg.tx_ctrl = value & ~(CTRL_P | CTRL_S);
-            break;
-
         default:
             s->regs[addr] = tswap32(value);
             break;
-- 
2.45.2