[Qemu-devel] [PATCH] moving eeprom initialization

[William Dauchy]

The initialization should not be only on reset but also when initializing
the device.
It resolves a bug when hot plugging a pci network device: the mac address
was always null.

Signed-off-by: William Dauchy <address@hidden>
Signed-off-by: Wen Congyang <address@hidden>
---
 hw/pcnet.c   |   59 +++++++++++++++++++++++++++++----------------------------
 hw/rtl8139.c |   23 ++++++++++-----------
 2 files changed, 41 insertions(+), 41 deletions(-)

diff --git a/hw/pcnet.c b/hw/pcnet.c
index 6dfdcc4..d3d5661 100644
--- a/hw/pcnet.c
+++ b/hw/pcnet.c
@@ -1557,35 +1557,6 @@ uint32_t pcnet_bcr_readw(PCNetState *s, uint32_t rap)
 void pcnet_h_reset(void *opaque)
 {
     PCNetState *s = opaque;
-    int i;
-    uint16_t checksum;
-
-    /* Initialize the PROM */
-
-    /*
-      Datasheet: http://pdfdata.datasheetsite.com/web/24528/AM79C970A.pdf
-      page 95
-    */
-    memcpy(s->prom, s->conf.macaddr.a, 6);
-    /* Reserved Location: must be 00h */
-    s->prom[6] = s->prom[7] = 0x00;
-    /* Reserved Location: must be 00h */
-    s->prom[8] = 0x00;
-    /* Hardware ID: must be 11h if compatibility to AMD drivers is desired */
-    s->prom[9] = 0x11;
-    /* User programmable space, init with 0 */
-    s->prom[10] = s->prom[11] = 0x00;
-    /* LSByte of two-byte checksum, which is the sum of bytes 00h-0Bh
-       and bytes 0Eh and 0Fh, must therefore be initialized with 0! */
-    s->prom[12] = s->prom[13] = 0x00;
-    /* Must be ASCII W (57h) if compatibility to AMD
-       driver software is desired */
-    s->prom[14] = s->prom[15] = 0x57;
-
-    for (i = 0,checksum = 0; i < 16; i++)
-        checksum += s->prom[i];
-    *(uint16_t *)&s->prom[12] = cpu_to_le16(checksum);
-
 
     s->bcr[BCR_MSRDA] = 0x0005;
     s->bcr[BCR_MSWRA] = 0x0005;
@@ -1752,6 +1723,9 @@ void pcnet_common_cleanup(PCNetState *d)
 
 int pcnet_common_init(DeviceState *dev, PCNetState *s, NetClientInfo *info)
 {
+    int i;
+    uint16_t checksum;
+
     s->poll_timer = qemu_new_timer(vm_clock, pcnet_poll_timer, s);
 
     qemu_macaddr_default_if_unset(&s->conf.macaddr);
@@ -1760,5 +1734,32 @@ int pcnet_common_init(DeviceState *dev, PCNetState *s, 
NetClientInfo *info)
 
     add_boot_device_path(s->conf.bootindex, dev, "/address@hidden");
 
+    /* Initialize the PROM */
+
+    /*
+      Datasheet: http://pdfdata.datasheetsite.com/web/24528/AM79C970A.pdf
+      page 95
+    */
+    memcpy(s->prom, s->conf.macaddr.a, 6);
+    /* Reserved Location: must be 00h */
+    s->prom[6] = s->prom[7] = 0x00;
+    /* Reserved Location: must be 00h */
+    s->prom[8] = 0x00;
+    /* Hardware ID: must be 11h if compatibility to AMD drivers is desired */
+    s->prom[9] = 0x11;
+    /* User programmable space, init with 0 */
+    s->prom[10] = s->prom[11] = 0x00;
+    /* LSByte of two-byte checksum, which is the sum of bytes 00h-0Bh
+       and bytes 0Eh and 0Fh, must therefore be initialized with 0! */
+    s->prom[12] = s->prom[13] = 0x00;
+    /* Must be ASCII W (57h) if compatibility to AMD
+       driver software is desired */
+    s->prom[14] = s->prom[15] = 0x57;
+
+    for (i = 0, checksum = 0; i < 16; i++) {
+        checksum += s->prom[i];
+    }
+    *(uint16_t *)&s->prom[12] = cpu_to_le16(checksum);
+
     return 0;
 }
diff --git a/hw/rtl8139.c b/hw/rtl8139.c
index a22530c..7a87522 100644
--- a/hw/rtl8139.c
+++ b/hw/rtl8139.c
@@ -1189,18 +1189,6 @@ static void rtl8139_reset(DeviceState *d)
 
     rtl8139_update_irq(s);
 
-    /* prepare eeprom */
-    s->eeprom.contents[0] = 0x8129;
-#if 1
-    // PCI vendor and device ID should be mirrored here
-    s->eeprom.contents[1] = PCI_VENDOR_ID_REALTEK;
-    s->eeprom.contents[2] = PCI_DEVICE_ID_REALTEK_8139;
-#endif
-
-    s->eeprom.contents[7] = s->conf.macaddr.a[0] | s->conf.macaddr.a[1] << 8;
-    s->eeprom.contents[8] = s->conf.macaddr.a[2] | s->conf.macaddr.a[3] << 8;
-    s->eeprom.contents[9] = s->conf.macaddr.a[4] | s->conf.macaddr.a[5] << 8;
-
     /* mark all status registers as owned by host */
     for (i = 0; i < 4; ++i)
     {
@@ -3392,6 +3380,17 @@ static int pci_rtl8139_init(PCIDevice *dev)
 
     qemu_macaddr_default_if_unset(&s->conf.macaddr);
 
+    /* prepare eeprom */
+    s->eeprom.contents[0] = 0x8129;
+#if 1
+    /* PCI vendor and device ID should be mirrored here */
+    s->eeprom.contents[1] = PCI_VENDOR_ID_REALTEK;
+    s->eeprom.contents[2] = PCI_DEVICE_ID_REALTEK_8139;
+#endif
+    s->eeprom.contents[7] = s->conf.macaddr.a[0] | s->conf.macaddr.a[1] << 8;
+    s->eeprom.contents[8] = s->conf.macaddr.a[2] | s->conf.macaddr.a[3] << 8;
+    s->eeprom.contents[9] = s->conf.macaddr.a[4] | s->conf.macaddr.a[5] << 8;
+
     s->nic = qemu_new_nic(&net_rtl8139_info, &s->conf,
                           dev->qdev.info->name, dev->qdev.id, s);
     qemu_format_nic_info_str(&s->nic->nc, s->conf.macaddr.a);
-- 
1.7.2.3