Netdev Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Shannon Nelson <snelson@pensando.io>
To: davem@davemloft.net, netdev@vger.kernel.org, kuba@kernel.org
Cc: drivers@pensando.io, Shannon Nelson <snelson@pensando.io>
Subject: [PATCH net 4/5] ionic: fix up dim accounting for tx and rx
Date: Fri, 23 Jul 2021 11:02:48 -0700	[thread overview]
Message-ID: <20210723180249.57599-5-snelson@pensando.io> (raw)
In-Reply-To: <20210723180249.57599-1-snelson@pensando.io>

We need to count the correct Tx and/or Rx packets for dynamic
interrupt moderation, depending on which we're processing on
the queue interrupt.

Fixes: 04a834592bf5 ("ionic: dynamic interrupt moderation")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
---
 .../net/ethernet/pensando/ionic/ionic_txrx.c  | 28 ++++++++++++++-----
 1 file changed, 21 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
index 9d3a04110685..1c6e2b9fc96b 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
@@ -451,11 +451,12 @@ void ionic_rx_empty(struct ionic_queue *q)
 	q->tail_idx = 0;
 }
 
-static void ionic_dim_update(struct ionic_qcq *qcq)
+static void ionic_dim_update(struct ionic_qcq *qcq, int napi_mode)
 {
 	struct dim_sample dim_sample;
 	struct ionic_lif *lif;
 	unsigned int qi;
+	u64 pkts, bytes;
 
 	if (!qcq->intr.dim_coal_hw)
 		return;
@@ -463,10 +464,23 @@ static void ionic_dim_update(struct ionic_qcq *qcq)
 	lif = qcq->q.lif;
 	qi = qcq->cq.bound_q->index;
 
+	switch (napi_mode) {
+	case IONIC_LIF_F_TX_DIM_INTR:
+		pkts = lif->txqstats[qi].pkts;
+		bytes = lif->txqstats[qi].bytes;
+		break;
+	case IONIC_LIF_F_RX_DIM_INTR:
+		pkts = lif->rxqstats[qi].pkts;
+		bytes = lif->rxqstats[qi].bytes;
+		break;
+	default:
+		pkts = lif->txqstats[qi].pkts + lif->rxqstats[qi].pkts;
+		bytes = lif->txqstats[qi].bytes + lif->rxqstats[qi].bytes;
+		break;
+	}
+
 	dim_update_sample(qcq->cq.bound_intr->rearm_count,
-			  lif->txqstats[qi].pkts,
-			  lif->txqstats[qi].bytes,
-			  &dim_sample);
+			  pkts, bytes, &dim_sample);
 
 	net_dim(&qcq->dim, dim_sample);
 }
@@ -487,7 +501,7 @@ int ionic_tx_napi(struct napi_struct *napi, int budget)
 				     ionic_tx_service, NULL, NULL);
 
 	if (work_done < budget && napi_complete_done(napi, work_done)) {
-		ionic_dim_update(qcq);
+		ionic_dim_update(qcq, IONIC_LIF_F_TX_DIM_INTR);
 		flags |= IONIC_INTR_CRED_UNMASK;
 		cq->bound_intr->rearm_count++;
 	}
@@ -526,7 +540,7 @@ int ionic_rx_napi(struct napi_struct *napi, int budget)
 		ionic_rx_fill(cq->bound_q);
 
 	if (work_done < budget && napi_complete_done(napi, work_done)) {
-		ionic_dim_update(qcq);
+		ionic_dim_update(qcq, IONIC_LIF_F_RX_DIM_INTR);
 		flags |= IONIC_INTR_CRED_UNMASK;
 		cq->bound_intr->rearm_count++;
 	}
@@ -572,7 +586,7 @@ int ionic_txrx_napi(struct napi_struct *napi, int budget)
 		ionic_rx_fill(rxcq->bound_q);
 
 	if (rx_work_done < budget && napi_complete_done(napi, rx_work_done)) {
-		ionic_dim_update(qcq);
+		ionic_dim_update(qcq, 0);
 		flags |= IONIC_INTR_CRED_UNMASK;
 		rxcq->bound_intr->rearm_count++;
 	}
-- 
2.17.1


  parent reply	other threads:[~2021-07-23 18:03 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-23 18:02 [PATCH net 0/5] ionic: bug fixes Shannon Nelson
2021-07-23 18:02 ` [PATCH net 1/5] ionic: make all rx_mode work threadsafe Shannon Nelson
2021-07-23 18:02 ` [PATCH net 2/5] ionic: catch no ptp support earlier Shannon Nelson
2021-07-23 18:02 ` [PATCH net 3/5] ionic: remove intr coalesce update from napi Shannon Nelson
2021-07-23 18:02 ` Shannon Nelson [this message]
2021-07-23 18:02 ` [PATCH net 5/5] ionic: count csum_none when offload enabled Shannon Nelson
2021-07-23 21:10 ` [PATCH net 0/5] ionic: bug fixes patchwork-bot+netdevbpf

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210723180249.57599-5-snelson@pensando.io \
    --to=snelson@pensando.io \
    --cc=davem@davemloft.net \
    --cc=drivers@pensando.io \
    --cc=kuba@kernel.org \
    --cc=netdev@vger.kernel.org \
    --subject='Re: [PATCH net 4/5] ionic: fix up dim accounting for tx and rx' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).