From: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
To: jgg@ziepe.ca, dledford@redhat.com
Cc: linux-rdma@vger.kernel.org,
Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Subject: [PATCH for-next 3/6] IB/hfi1: Get rid of tx priv backpointer
Date: Mon, 13 Sep 2021 09:28:37 -0400 [thread overview]
Message-ID: <20210913132836.131370.89704.stgit@awfm-01.cornelisnetworks.com> (raw)
In-Reply-To: <20210913132317.131370.54825.stgit@awfm-01.cornelisnetworks.com>
From: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
The txq has the backpointer, so this is a micro optimization
for the tx path.
Fixes: d99dc602e2a5 ("IB/hfi1: Add functions to transmit datagram ipoib packets")
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
---
drivers/infiniband/hw/hfi1/ipoib_tx.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/infiniband/hw/hfi1/ipoib_tx.c b/drivers/infiniband/hw/hfi1/ipoib_tx.c
index 053eb43..734b91d 100644
--- a/drivers/infiniband/hw/hfi1/ipoib_tx.c
+++ b/drivers/infiniband/hw/hfi1/ipoib_tx.c
@@ -133,7 +133,7 @@ static void hfi1_ipoib_check_queue_stopped(struct hfi1_ipoib_txq *txq)
static void hfi1_ipoib_free_tx(struct ipoib_txreq *tx, int budget)
{
- struct hfi1_ipoib_dev_priv *priv = tx->priv;
+ struct hfi1_ipoib_dev_priv *priv = tx->txq->priv;
if (likely(!tx->sdma_status)) {
dev_sw_netstats_tx_add(priv->netdev, 1, tx->skb->len);
@@ -273,7 +273,7 @@ static int hfi1_ipoib_build_tx_desc(struct ipoib_txreq *tx,
static void hfi1_ipoib_build_ib_tx_headers(struct ipoib_txreq *tx,
struct ipoib_txparms *txp)
{
- struct hfi1_ipoib_dev_priv *priv = tx->priv;
+ struct hfi1_ipoib_dev_priv *priv = tx->txq->priv;
struct hfi1_sdma_header *sdma_hdr = &tx->sdma_hdr;
struct sk_buff *skb = tx->skb;
struct hfi1_pportdata *ppd = ppd_from_ibp(txp->ibp);
@@ -383,7 +383,6 @@ static struct ipoib_txreq *hfi1_ipoib_send_dma_common(struct net_device *dev,
/* so that we can test if the sdma descriptors are there */
tx->txreq.num_desc = 0;
- tx->priv = priv;
tx->txq = txq;
tx->skb = skb;
INIT_LIST_HEAD(&tx->txreq.list);
@@ -491,7 +490,7 @@ static int hfi1_ipoib_send_dma_single(struct net_device *dev,
ret = hfi1_ipoib_submit_tx(txq, tx);
if (likely(!ret)) {
tx_ok:
- trace_sdma_output_ibhdr(tx->priv->dd,
+ trace_sdma_output_ibhdr(txq->priv->dd,
&tx->sdma_hdr.hdr,
ib_is_sc5(txp->flow.sc5));
hfi1_ipoib_check_queue_depth(txq);
@@ -554,7 +553,7 @@ static int hfi1_ipoib_send_dma_list(struct net_device *dev,
hfi1_ipoib_check_queue_depth(txq);
- trace_sdma_output_ibhdr(tx->priv->dd,
+ trace_sdma_output_ibhdr(txq->priv->dd,
&tx->sdma_hdr.hdr,
ib_is_sc5(txp->flow.sc5));
next prev parent reply other threads:[~2021-09-13 13:32 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-13 13:28 [PATCH for-next 0/6] Perf and debug fixes for hfi Dennis Dalessandro
2021-09-13 13:28 ` [PATCH for-next 1/6] IB/hfi1: Remove cache and embed txreq in ring Dennis Dalessandro
2021-09-13 13:28 ` [PATCH for-next 2/6] IB/hfi1: Get rid of hot path divide Dennis Dalessandro
2021-09-13 13:28 ` Dennis Dalessandro [this message]
2021-09-13 13:28 ` [PATCH for-next 4/6] IB/hfi1: Tune netdev xmit cachelines Dennis Dalessandro
2021-09-13 13:28 ` [PATCH for-next 5/6] IB/hfi1: Remove atomic completion count Dennis Dalessandro
2021-09-13 13:28 ` [PATCH for-next 6/6] IB/hfi1: Add ring consumer and producers traces Dennis Dalessandro
2021-09-27 23:15 ` [PATCH for-next 0/6] Perf and debug fixes for hfi Jason Gunthorpe
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