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Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/…
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…tnguy/net-queue

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2024-03-06 (igc, igb, ice)

This series contains updates to igc, igb, and ice drivers.

Vinicius removes double clearing of interrupt register which could cause
timestamp events to be missed on igc and igb.

Przemek corrects calculation of statistics which caused incorrect spikes
in reporting for ice driver.

* '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
  ice: fix stats being updated by way too large values
  igb: Fix missing time sync events
  igc: Fix missing time sync events
====================

Link: https://lore.kernel.org/r/20240306182617.625932-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Jakub Kicinski committed Mar 8, 2024
2 parents b446631 + 257310e commit 9831e35
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Showing 3 changed files with 17 additions and 42 deletions.
24 changes: 11 additions & 13 deletions drivers/net/ethernet/intel/ice/ice_main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -6737,6 +6737,7 @@ static void ice_update_vsi_ring_stats(struct ice_vsi *vsi)
{
struct rtnl_link_stats64 *net_stats, *stats_prev;
struct rtnl_link_stats64 *vsi_stats;
struct ice_pf *pf = vsi->back;
u64 pkts, bytes;
int i;

Expand Down Expand Up @@ -6782,21 +6783,18 @@ static void ice_update_vsi_ring_stats(struct ice_vsi *vsi)
net_stats = &vsi->net_stats;
stats_prev = &vsi->net_stats_prev;

/* clear prev counters after reset */
if (vsi_stats->tx_packets < stats_prev->tx_packets ||
vsi_stats->rx_packets < stats_prev->rx_packets) {
stats_prev->tx_packets = 0;
stats_prev->tx_bytes = 0;
stats_prev->rx_packets = 0;
stats_prev->rx_bytes = 0;
/* Update netdev counters, but keep in mind that values could start at
* random value after PF reset. And as we increase the reported stat by
* diff of Prev-Cur, we need to be sure that Prev is valid. If it's not,
* let's skip this round.
*/
if (likely(pf->stat_prev_loaded)) {
net_stats->tx_packets += vsi_stats->tx_packets - stats_prev->tx_packets;
net_stats->tx_bytes += vsi_stats->tx_bytes - stats_prev->tx_bytes;
net_stats->rx_packets += vsi_stats->rx_packets - stats_prev->rx_packets;
net_stats->rx_bytes += vsi_stats->rx_bytes - stats_prev->rx_bytes;
}

/* update netdev counters */
net_stats->tx_packets += vsi_stats->tx_packets - stats_prev->tx_packets;
net_stats->tx_bytes += vsi_stats->tx_bytes - stats_prev->tx_bytes;
net_stats->rx_packets += vsi_stats->rx_packets - stats_prev->rx_packets;
net_stats->rx_bytes += vsi_stats->rx_bytes - stats_prev->rx_bytes;

stats_prev->tx_packets = vsi_stats->tx_packets;
stats_prev->tx_bytes = vsi_stats->tx_bytes;
stats_prev->rx_packets = vsi_stats->rx_packets;
Expand Down
23 changes: 5 additions & 18 deletions drivers/net/ethernet/intel/igb/igb_main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -6985,44 +6985,31 @@ static void igb_extts(struct igb_adapter *adapter, int tsintr_tt)
static void igb_tsync_interrupt(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
u32 ack = 0, tsicr = rd32(E1000_TSICR);
u32 tsicr = rd32(E1000_TSICR);
struct ptp_clock_event event;

if (tsicr & TSINTR_SYS_WRAP) {
event.type = PTP_CLOCK_PPS;
if (adapter->ptp_caps.pps)
ptp_clock_event(adapter->ptp_clock, &event);
ack |= TSINTR_SYS_WRAP;
}

if (tsicr & E1000_TSICR_TXTS) {
/* retrieve hardware timestamp */
schedule_work(&adapter->ptp_tx_work);
ack |= E1000_TSICR_TXTS;
}

if (tsicr & TSINTR_TT0) {
if (tsicr & TSINTR_TT0)
igb_perout(adapter, 0);
ack |= TSINTR_TT0;
}

if (tsicr & TSINTR_TT1) {
if (tsicr & TSINTR_TT1)
igb_perout(adapter, 1);
ack |= TSINTR_TT1;
}

if (tsicr & TSINTR_AUTT0) {
if (tsicr & TSINTR_AUTT0)
igb_extts(adapter, 0);
ack |= TSINTR_AUTT0;
}

if (tsicr & TSINTR_AUTT1) {
if (tsicr & TSINTR_AUTT1)
igb_extts(adapter, 1);
ack |= TSINTR_AUTT1;
}

/* acknowledge the interrupts */
wr32(E1000_TSICR, ack);
}

static irqreturn_t igb_msix_other(int irq, void *data)
Expand Down
12 changes: 1 addition & 11 deletions drivers/net/ethernet/intel/igc/igc_main.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -5302,25 +5302,22 @@ igc_features_check(struct sk_buff *skb, struct net_device *dev,

static void igc_tsync_interrupt(struct igc_adapter *adapter)
{
u32 ack, tsauxc, sec, nsec, tsicr;
struct igc_hw *hw = &adapter->hw;
u32 tsauxc, sec, nsec, tsicr;
struct ptp_clock_event event;
struct timespec64 ts;

tsicr = rd32(IGC_TSICR);
ack = 0;

if (tsicr & IGC_TSICR_SYS_WRAP) {
event.type = PTP_CLOCK_PPS;
if (adapter->ptp_caps.pps)
ptp_clock_event(adapter->ptp_clock, &event);
ack |= IGC_TSICR_SYS_WRAP;
}

if (tsicr & IGC_TSICR_TXTS) {
/* retrieve hardware timestamp */
igc_ptp_tx_tstamp_event(adapter);
ack |= IGC_TSICR_TXTS;
}

if (tsicr & IGC_TSICR_TT0) {
Expand All @@ -5334,7 +5331,6 @@ static void igc_tsync_interrupt(struct igc_adapter *adapter)
wr32(IGC_TSAUXC, tsauxc);
adapter->perout[0].start = ts;
spin_unlock(&adapter->tmreg_lock);
ack |= IGC_TSICR_TT0;
}

if (tsicr & IGC_TSICR_TT1) {
Expand All @@ -5348,7 +5344,6 @@ static void igc_tsync_interrupt(struct igc_adapter *adapter)
wr32(IGC_TSAUXC, tsauxc);
adapter->perout[1].start = ts;
spin_unlock(&adapter->tmreg_lock);
ack |= IGC_TSICR_TT1;
}

if (tsicr & IGC_TSICR_AUTT0) {
Expand All @@ -5358,7 +5353,6 @@ static void igc_tsync_interrupt(struct igc_adapter *adapter)
event.index = 0;
event.timestamp = sec * NSEC_PER_SEC + nsec;
ptp_clock_event(adapter->ptp_clock, &event);
ack |= IGC_TSICR_AUTT0;
}

if (tsicr & IGC_TSICR_AUTT1) {
Expand All @@ -5368,11 +5362,7 @@ static void igc_tsync_interrupt(struct igc_adapter *adapter)
event.index = 1;
event.timestamp = sec * NSEC_PER_SEC + nsec;
ptp_clock_event(adapter->ptp_clock, &event);
ack |= IGC_TSICR_AUTT1;
}

/* acknowledge the interrupts */
wr32(IGC_TSICR, ack);
}

/**
Expand Down

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