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e1000: Fixing the received/transmitted packets' counters

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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>
This commit is contained in:
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.