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authortimothee.cocault@gmail.com <timothee.cocault@gmail.com>2023-04-10 17:27:48 +0200
committerJason Wang <jasowang@redhat.com>2023-05-23 15:20:15 +0800
commit8d689f6aae8be096b4a1859be07c1b083865f755 (patch)
treeb1eee1ce80c71d1883ab43680684dcb03d674f30 /hw/net/e1000.c
parent886c0453cbf10eebd42a9ccf89c3e46eb389c357 (diff)
e1000e: Fix tx/rx counters
The bytes and packets counter registers are cleared on read. Copying the "total counter" registers to the "good counter" registers has side effects. If the "total" register is never read by the OS, it only gets incremented. This leads to exponential growth of the "good" register. This commit increments the counters individually to avoid this. Signed-off-by: Timothée Cocault <timothee.cocault@gmail.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'hw/net/e1000.c')
-rw-r--r--hw/net/e1000.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/hw/net/e1000.c b/hw/net/e1000.c
index 23d660619f..59bacb5d3b 100644
--- a/hw/net/e1000.c
+++ b/hw/net/e1000.c
@@ -637,9 +637,8 @@ xmit_seg(E1000State *s)
e1000x_inc_reg_if_not_full(s->mac_reg, TPT);
e1000x_grow_8reg_if_not_full(s->mac_reg, TOTL, s->tx.size + 4);
- s->mac_reg[GPTC] = s->mac_reg[TPT];
- s->mac_reg[GOTCL] = s->mac_reg[TOTL];
- s->mac_reg[GOTCH] = s->mac_reg[TOTH];
+ e1000x_inc_reg_if_not_full(s->mac_reg, GPTC);
+ e1000x_grow_8reg_if_not_full(s->mac_reg, GOTCL, s->tx.size + 4);
}
static void