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e1000: Fixing the received/transmitted packets' counters 

According to Intel's specs, these counters (as the other Statistic
registers) stick at 0xffffffff when this maximal value is reached.
Previously, they would reset after the max. value.

Signed-off-by: Leonid Bloch <leonid.bloch@ravellosystems.com>
Signed-off-by: Dmitry Fleytman <dmitry.fleytman@ravellosystems.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
master
Leonid Bloch 2015-11-11 15:52:43 +02:00 committed by Jason Wang
parent 72ea771c97
commit 1f67f92c4f
1 changed files with 12 additions and 4 deletions
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16
hw/net/e1000.c
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@ -580,6 +580,14 @@ putsum(uint8_t *data, uint32_t n, uint32_t sloc, uint32_t css, uint32_t cse)
}
}
static inline void
inc_reg_if_not_full(E1000State *s, int index)
{
if (s->mac_reg[index] != 0xffffffff) {
s->mac_reg[index]++;
}
}
static inline int
vlan_enabled(E1000State *s)
{
@ -677,8 +685,8 @@ xmit_seg(E1000State *s)
e1000_send_packet(s, tp->data, tp->size);
}
s->mac_reg[TPT]++;
s->mac_reg[GPTC]++;
inc_reg_if_not_full(s, TPT);
s->mac_reg[GPTC] = s->mac_reg[TPT];
n = s->mac_reg[TOTL];
if ((s->mac_reg[TOTL] += s->tx.size) < n)
s->mac_reg[TOTH]++;
@ -1091,8 +1099,8 @@ e1000_receive_iov(NetClientState *nc, const struct iovec *iov, int iovcnt)
}
} while (desc_offset < total_size);
s->mac_reg[GPRC]++;
s->mac_reg[TPR]++;
inc_reg_if_not_full(s, TPR);
s->mac_reg[GPRC] = s->mac_reg[TPR];
/* TOR - Total Octets Received:
* This register includes bytes received in a packet from the <Destination
* Address> field through the <CRC> field, inclusively.