From: Harry van Haaren Date: Wed, 18 Nov 2015 10:48:08 +0000 (+0000) Subject: ixgbe: remove CRC size from byte counters X-Git-Tag: spdx-start~8008 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=c03fcee9abbd;p=dpdk.git ixgbe: remove CRC size from byte counters This patch removes the crc bytes from byte counter statistics. Signed-off-by: Harry van Haaren Acked-by: Konstantin Ananyev --- diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c index 80801f0392..594dd7db1e 100644 --- a/drivers/net/ixgbe/ixgbe_ethdev.c +++ b/drivers/net/ixgbe/ixgbe_ethdev.c @@ -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);