From: Thomas Miletich <thomas.miletich@gmail.com>
Date: Tue, 8 Sep 2009 17:35:55 +0000 (+0200)
Subject: [sis900] Enable interrupts to allow UNDI to work
X-Git-Tag: v0.9.9~11
X-Git-Url: http://git.etherboot.org/people/andreif/gpxe.git/commitdiff_plain/d07f79de359f834468ff9f86beb71d53413ff2d7?hp=0ea6e5c221a463ef5d62e00703e0d5595cc4d169

[sis900] Enable interrupts to allow UNDI to work

Enable interrupts in sis900_irq(). Doing so allows some programs using
gPXE's UNDI interface to work properly, including Symantec Ghost.

Tested-by: Hubert Mercier <hubert.mercier@unilim.fr>
Signed-off-by: Marty Connor <mdc@etherboot.org>
---

diff --git a/src/drivers/net/sis900.c b/src/drivers/net/sis900.c
index 177cd657..da14a091 100644
--- a/src/drivers/net/sis900.c
+++ b/src/drivers/net/sis900.c
@@ -1183,8 +1183,12 @@ static int
 sis900_poll(struct nic *nic, int retrieve)
 {
     u32 rx_status = rxd[cur_rx].cmdsts;
+    u32 intr_status;
     int retstat = 0;
 
+     /* acknowledge interrupts by reading interrupt status register */
+    intr_status = inl(ioaddr + isr);
+
     if (sis900_debug > 2)
         printf("sis900_poll: cur_rx:%d, status:%X\n", cur_rx, 
 	       (unsigned int) rx_status);
@@ -1264,8 +1268,10 @@ sis900_irq(struct nic *nic __unused, irq_action_t action __unused)
 {
   switch ( action ) {
   case DISABLE :
+    outl(0, ioaddr + imr);
     break;
   case ENABLE :
+    outl((RxSOVR|RxORN|RxERR|RxOK|TxURN|TxERR|TxIDLE), ioaddr + imr);
     break;
   case FORCE :
     break;