When use port stats register to calcuate the packet count, LLDP packets
are 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 sta...@dpdk.org
Signed-off-by: Qi Zhang <qi.z.zh...@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
+ * 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
* 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
+ * 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
+ * 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
