diff options
| author | Brett Creeley <brett.creeley@amd.com> | 2023-12-05 00:09:35 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-12-06 07:49:51 +0300 |
| commit | ab807e9183425ddf6dd85ca622a51fe4cad2c577 (patch) | |
| tree | b9384cea5cc837888cc5e364e0f70cf0fbee96ef /drivers/net/ethernet/pensando | |
| parent | 2d0b80c3a550f7828f26dba029c2b9346be789af (diff) | |
| download | linux-ab807e9183425ddf6dd85ca622a51fe4cad2c577.tar.xz | |
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 <brett.creeley@amd.com>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Link: https://lore.kernel.org/r/20231204210936.16587-5-shannon.nelson@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/pensando')
| -rw-r--r-- | drivers/net/ethernet/pensando/ionic/ionic_lif.h | 5 | ||||
| -rw-r--r-- | 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 457c24195ca6..61548b3eea93 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 ccc1b1d407e4..54cd96b035d6 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); |