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ixgbe: remove CRC size from byte counters

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This patch removes the crc bytes from byte counter statistics.

Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
This commit is contained in:
Harry van Haaren 2015-11-18 10:48:08 +00:00 committed by Thomas Monjalon
parent 156c5a8cf9
commit c03fcee9ab
1 changed files with 43 additions and 12 deletions
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55
drivers/net/ixgbe/ixgbe_ethdev.c
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@ -2331,13 +2331,21 @@ ixgbe_dev_close(struct rte_eth_dev *dev)
}
static void
ixgbe_read_stats_registers(struct ixgbe_hw *hw, struct ixgbe_hw_stats
*hw_stats, uint64_t *total_missed_rx,
uint64_t *total_qbrc, uint64_t *total_qprc,
uint64_t *total_qprdc)
ixgbe_read_stats_registers(struct ixgbe_hw *hw,
struct ixgbe_hw_stats *hw_stats,
uint64_t *total_missed_rx, uint64_t *total_qbrc,
uint64_t *total_qprc, uint64_t *total_qprdc)
{
uint32_t bprc, lxon, lxoff, total;
uint32_t delta_gprc = 0;
uint32_t delta_gptc = 0;
unsigned i;
/* Workaround for RX byte count not including CRC bytes when CRC
+ * strip is enabled. CRC bytes are removed from counters when crc_strip
* is disabled.
+ */
int crc_strip = (IXGBE_READ_REG(hw, IXGBE_HLREG0) &
IXGBE_HLREG0_RXCRCSTRP);
hw_stats->crcerrs += IXGBE_READ_REG(hw, IXGBE_CRCERRS);
hw_stats->illerrc += IXGBE_READ_REG(hw, IXGBE_ILLERRC);
@ -2372,16 +2380,28 @@ ixgbe_read_stats_registers(struct ixgbe_hw *hw, struct ixgbe_hw_stats
IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i));
}
for (i = 0; i < IXGBE_QUEUE_STAT_COUNTERS; i++) {
hw_stats->qprc[i] += IXGBE_READ_REG(hw, IXGBE_QPRC(i));
hw_stats->qptc[i] += IXGBE_READ_REG(hw, IXGBE_QPTC(i));
uint32_t delta_qprc = IXGBE_READ_REG(hw, IXGBE_QPRC(i));
uint32_t delta_qptc = IXGBE_READ_REG(hw, IXGBE_QPTC(i));
uint32_t delta_qprdc = IXGBE_READ_REG(hw, IXGBE_QPRDC(i));
delta_gprc += delta_qprc;
delta_gptc += delta_qptc;
hw_stats->qprc[i] += delta_qprc;
hw_stats->qptc[i] += delta_qptc;
hw_stats->qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC_L(i));
hw_stats->qbrc[i] +=
((uint64_t)IXGBE_READ_REG(hw, IXGBE_QBRC_H(i)) << 32);
if (crc_strip == 0)
hw_stats->qbrc[i] -= delta_qprc * ETHER_CRC_LEN;
hw_stats->qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC_L(i));
hw_stats->qbtc[i] +=
((uint64_t)IXGBE_READ_REG(hw, IXGBE_QBTC_H(i)) << 32);
*total_qprdc += hw_stats->qprdc[i] +=
IXGBE_READ_REG(hw, IXGBE_QPRDC(i));
hw_stats->qprdc[i] += delta_qprdc;
*total_qprdc += hw_stats->qprdc[i];
*total_qprc += hw_stats->qprc[i];
*total_qbrc += hw_stats->qbrc[i];
@ -2390,8 +2410,11 @@ ixgbe_read_stats_registers(struct ixgbe_hw *hw, struct ixgbe_hw_stats
hw_stats->mrfc += IXGBE_READ_REG(hw, IXGBE_MRFC);
hw_stats->rlec += IXGBE_READ_REG(hw, IXGBE_RLEC);
/* Note that gprc counts missed packets */
hw_stats->gprc += IXGBE_READ_REG(hw, IXGBE_GPRC);
/*
* An errata states that gprc actually counts good + missed packets:
* Workaround to set gprc to summated queue packet receives
*/
hw_stats->gprc = *total_qprc;
if (hw->mac.type != ixgbe_mac_82598EB) {
hw_stats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCL);
@ -2410,6 +2433,16 @@ ixgbe_read_stats_registers(struct ixgbe_hw *hw, struct ixgbe_hw_stats
hw_stats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCH);
hw_stats->tor += IXGBE_READ_REG(hw, IXGBE_TORH);
}
uint64_t old_tpr = hw_stats->tpr;
hw_stats->tpr += IXGBE_READ_REG(hw, IXGBE_TPR);
hw_stats->tpt += IXGBE_READ_REG(hw, IXGBE_TPT);
if (crc_strip == 0)
hw_stats->gorc -= delta_gprc * ETHER_CRC_LEN;
hw_stats->gotc -= delta_gptc * ETHER_CRC_LEN;
hw_stats->tor -= (hw_stats->tpr - old_tpr) * ETHER_CRC_LEN;
/*
* Workaround: mprc hardware is incorrectly counting
@ -2449,8 +2482,6 @@ ixgbe_read_stats_registers(struct ixgbe_hw *hw, struct ixgbe_hw_stats
hw_stats->mngprc += IXGBE_READ_REG(hw, IXGBE_MNGPRC);
hw_stats->mngpdc += IXGBE_READ_REG(hw, IXGBE_MNGPDC);
hw_stats->mngptc += IXGBE_READ_REG(hw, IXGBE_MNGPTC);
hw_stats->tpr += IXGBE_READ_REG(hw, IXGBE_TPR);
hw_stats->tpt += IXGBE_READ_REG(hw, IXGBE_TPT);
hw_stats->ptc127 += IXGBE_READ_REG(hw, IXGBE_PTC127);
hw_stats->ptc255 += IXGBE_READ_REG(hw, IXGBE_PTC255);
hw_stats->ptc511 += IXGBE_READ_REG(hw, IXGBE_PTC511);