From ab807e9183425ddf6dd85ca622a51fe4cad2c577 Mon Sep 17 00:00:00 2001 From: Brett Creeley Date: Mon, 4 Dec 2023 13:09:35 -0800 Subject: [PATCH] ionic: Make the check for Tx HW timestamping more obvious Currently the checks are: [1] unlikely(q->features & IONIC_TXQ_F_HWSTAMP) [2] !unlikely(q->features & IONIC_TXQ_F_HWSTAMP) [1] is clear enough, but [2] isn't exactly obvious to the reader because !unlikely reads as likely. However, that's not what this means. [2] means that it's unlikely that the q has IONIC_TXQ_F_HWSTAMP enabled. Write an inline helper function to hide the unlikely optimization to make these checks more readable. Signed-off-by: Brett Creeley Signed-off-by: Shannon Nelson Reviewed-by: Florian Fainelli Reviewed-by: Rahul Rameshbabu Link: https://lore.kernel.org/r/20231204210936.16587-5-shannon.nelson@amd.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/pensando/ionic/ionic_lif.h | 5 +++++ drivers/net/ethernet/pensando/ionic/ionic_txrx.c | 10 +++++----- 2 files changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.h b/drivers/net/ethernet/pensando/ionic/ionic_lif.h index 457c24195ca61..61548b3eea938 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_lif.h +++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.h @@ -312,6 +312,11 @@ static inline u32 ionic_coal_usec_to_hw(struct ionic *ionic, u32 usecs) return (usecs * mult) / div; } +static inline bool ionic_txq_hwstamp_enabled(struct ionic_queue *q) +{ + return unlikely(q->features & IONIC_TXQ_F_HWSTAMP); +} + void ionic_link_status_check_request(struct ionic_lif *lif, bool can_sleep); void ionic_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *ns); diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c index ccc1b1d407e41..54cd96b035d68 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c @@ -803,7 +803,7 @@ static void ionic_tx_clean(struct ionic_queue *q, qi = skb_get_queue_mapping(skb); - if (unlikely(q->features & IONIC_TXQ_F_HWSTAMP)) { + if (ionic_txq_hwstamp_enabled(q)) { if (cq_info) { struct skb_shared_hwtstamps hwts = {}; __le64 *cq_desc_hwstamp; @@ -870,7 +870,7 @@ bool ionic_tx_service(struct ionic_cq *cq, struct ionic_cq_info *cq_info) desc_info->cb_arg = NULL; } while (index != le16_to_cpu(comp->comp_index)); - if (pkts && bytes && !unlikely(q->features & IONIC_TXQ_F_HWSTAMP)) + if (pkts && bytes && !ionic_txq_hwstamp_enabled(q)) netdev_tx_completed_queue(q_to_ndq(q), pkts, bytes); return true; @@ -908,7 +908,7 @@ void ionic_tx_empty(struct ionic_queue *q) desc_info->cb_arg = NULL; } - if (pkts && bytes && !unlikely(q->features & IONIC_TXQ_F_HWSTAMP)) + if (pkts && bytes && !ionic_txq_hwstamp_enabled(q)) netdev_tx_completed_queue(q_to_ndq(q), pkts, bytes); } @@ -986,7 +986,7 @@ static void ionic_tx_tso_post(struct ionic_queue *q, if (start) { skb_tx_timestamp(skb); - if (!unlikely(q->features & IONIC_TXQ_F_HWSTAMP)) + if (!ionic_txq_hwstamp_enabled(q)) netdev_tx_sent_queue(q_to_ndq(q), skb->len); ionic_txq_post(q, false, ionic_tx_clean, skb); } else { @@ -1233,7 +1233,7 @@ static int ionic_tx(struct ionic_queue *q, struct sk_buff *skb) stats->pkts++; stats->bytes += skb->len; - if (!unlikely(q->features & IONIC_TXQ_F_HWSTAMP)) + if (!ionic_txq_hwstamp_enabled(q)) netdev_tx_sent_queue(q_to_ndq(q), skb->len); ionic_txq_post(q, !netdev_xmit_more(), ionic_tx_clean, skb); -- 2.30.2