From: "Xing, Beilei" <beilei.xing@intel.com>
To: "Zhang, Qi Z" <qi.z.zhang@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH] net/i40e: exclude LLDP packet count
Date: Mon, 11 Dec 2017 08:49:54 +0000 [thread overview]
Message-ID: <94479800C636CB44BD422CB454846E013207E1D4@SHSMSX101.ccr.corp.intel.com> (raw)
In-Reply-To: <1512437375-17322-1-git-send-email-qi.z.zhang@intel.com>
> -----Original Message-----
> From: Zhang, Qi Z
> Sent: Tuesday, December 5, 2017 9:30 AM
> To: Xing, Beilei <beilei.xing@intel.com>
> Cc: dev@dpdk.org; Zhang, Qi Z <qi.z.zhang@intel.com>
> Subject: [PATCH] net/i40e: exclude LLDP packet count
>
> When use port stats register to calcuate the packet count, LLDP packets are
Patch looks OK for me except some typos.
calcuate -> calculate
> counted in statistics which is not expected, the patch exclude this number
> from total number.
>
> Fixes: 763de290cbd1 ("net/i40e: fix packet count for PF") Cc stable@dpdk.org
>
> Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
> ---
> drivers/net/i40e/i40e_ethdev.c | 58
> +++++++++++++++++++++++++++++++++++++++---
> 1 file changed, 55 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
> index 811cc9f..4cbb259 100644
> --- a/drivers/net/i40e/i40e_ethdev.c
> +++ b/drivers/net/i40e/i40e_ethdev.c
> @@ -2531,6 +2531,22 @@ i40e_read_stats_registers(struct i40e_pf *pf,
> struct i40e_hw *hw)
> pf->offset_loaded,
> &pf->internal_stats_offset.rx_broadcast,
> &pf->internal_stats.rx_broadcast);
> + /* Get total internal tx packet count */
> + i40e_stat_update_48(hw, I40E_GLV_UPTCH(hw->port),
> + I40E_GLV_UPTCL(hw->port),
> + pf->offset_loaded,
> + &pf->internal_stats_offset.tx_unicast,
> + &pf->internal_stats.tx_unicast);
> + i40e_stat_update_48(hw, I40E_GLV_MPTCH(hw->port),
> + I40E_GLV_MPTCL(hw->port),
> + pf->offset_loaded,
> + &pf->internal_stats_offset.tx_multicast,
> + &pf->internal_stats.tx_multicast);
> + i40e_stat_update_48(hw, I40E_GLV_BPTCH(hw->port),
> + I40E_GLV_BPTCL(hw->port),
> + pf->offset_loaded,
> + &pf->internal_stats_offset.tx_broadcast,
> + &pf->internal_stats.tx_broadcast);
>
> /* exclude CRC size */
> pf->internal_stats.rx_bytes -= (pf->internal_stats.rx_unicast + @@ -
> 2560,16 +2576,32 @@ i40e_read_stats_registers(struct i40e_pf *pf, struct
> i40e_hw *hw)
> ns->eth.rx_bytes -= (ns->eth.rx_unicast + ns->eth.rx_multicast +
> ns->eth.rx_broadcast) * ETHER_CRC_LEN;
>
> - /* Workaround: it is possible I40E_GLV_GORCH[H/L] is updated
> before
> + /* exlude internal rx bytes
exclude
> + * Workaround: it is possible I40E_GLV_GORCH[H/L] is updated
> before
> * I40E_GLPRT_GORCH[H/L], so there is a small window that cause
> negtive
negative
> * value.
> + * same to I40E_GLV_UPRC[H/L], I40E_GLV_MPRC[H/L],
> I40E_GLV_BPRC[H/L].
> */
> if (ns->eth.rx_bytes < pf->internal_stats.rx_bytes)
> ns->eth.rx_bytes = 0;
> - /* exlude internal rx bytes */
> else
> ns->eth.rx_bytes -= pf->internal_stats.rx_bytes;
>
> + if (ns->eth.rx_unicast < pf->internal_stats.rx_unicast)
> + ns->eth.rx_unicast = 0;
> + else
> + ns->eth.rx_unicast -= pf->internal_stats.rx_unicast;
> +
> + if (ns->eth.rx_multicast < pf->internal_stats.rx_multicast)
> + ns->eth.rx_multicast = 0;
> + else
> + ns->eth.rx_multicast -= pf->internal_stats.rx_multicast;
> +
> + if (ns->eth.rx_broadcast < pf->internal_stats.rx_broadcast)
> + ns->eth.rx_broadcast = 0;
> + else
> + ns->eth.rx_broadcast -= pf->internal_stats.rx_broadcast;
> +
> i40e_stat_update_32(hw, I40E_GLPRT_RDPC(hw->port),
> pf->offset_loaded, &os->eth.rx_discards,
> &ns->eth.rx_discards);
> @@ -2598,12 +2630,32 @@ i40e_read_stats_registers(struct i40e_pf *pf,
> struct i40e_hw *hw)
> ns->eth.tx_bytes -= (ns->eth.tx_unicast + ns->eth.tx_multicast +
> ns->eth.tx_broadcast) * ETHER_CRC_LEN;
>
> - /* exclude internal tx bytes */
> + /* exlude internal tx bytes
exclude
> + * Workaround: it is possible I40E_GLV_GOTCH[H/L] is updated
> before
> + * I40E_GLPRT_GOTCH[H/L], so there is a small window that cause
> negtive
negative.
> + * value.
> + * same to I40E_GLV_UPTC[H/L], I40E_GLV_MPTC[H/L],
> I40E_GLV_BPTC[H/L].
> + */
> if (ns->eth.tx_bytes < pf->internal_stats.tx_bytes)
> ns->eth.tx_bytes = 0;
> else
> ns->eth.tx_bytes -= pf->internal_stats.tx_bytes;
>
> + if (ns->eth.tx_unicast < pf->internal_stats.tx_unicast)
> + ns->eth.tx_unicast = 0;
> + else
> + ns->eth.tx_unicast -= pf->internal_stats.tx_unicast;
> +
> + if (ns->eth.tx_multicast < pf->internal_stats.tx_multicast)
> + ns->eth.tx_multicast = 0;
> + else
> + ns->eth.tx_multicast -= pf->internal_stats.tx_multicast;
> +
> + if (ns->eth.tx_broadcast < pf->internal_stats.tx_broadcast)
> + ns->eth.tx_broadcast = 0;
> + else
> + ns->eth.tx_broadcast -= pf->internal_stats.tx_broadcast;
> +
> /* GLPRT_TEPC not supported */
>
> /* additional port specific stats */
> --
> 2.7.4
next prev parent reply other threads:[~2017-12-11 8:49 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-05 1:29 Qi Zhang
2017-12-11 8:49 ` Xing, Beilei [this message]
2017-12-11 8:51 ` Zhang, Qi Z
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