diff options
| author | Shannon Nelson <shannon.nelson@amd.com> | 2024-06-18 17:32:54 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-06-19 18:31:48 -0700 |
| commit | d7f9bc68591803a9bca34847b76b2fc8f12e5dfd (patch) | |
| tree | ec3f4920539c409799a2307fcf0d86d9c184a86b /drivers/net/ethernet/pensando/ionic/ionic_dev.c | |
| parent | 4ded136c78f8ae17d140b8aae3cd4459a6827577 (diff) | |
ionic: add per-queue napi_schedule for doorbell check
Add a work item for each queue that will be run on the queue's
preferred cpu and will schedule another napi. This napi is
run in case the device missed a doorbell and didn't process
a packet. This is a problem for the Elba asic that happens
very rarely.
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Link: https://lore.kernel.org/r/20240619003257.6138-6-shannon.nelson@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/pensando/ionic/ionic_dev.c')
| -rw-r--r-- | drivers/net/ethernet/pensando/ionic/ionic_dev.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_dev.c b/drivers/net/ethernet/pensando/ionic/ionic_dev.c index 5d5990e7376e..56e7c120d492 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_dev.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.c @@ -54,6 +54,13 @@ static void ionic_napi_schedule_do_softirq(struct napi_struct *napi) local_bh_enable(); } +void ionic_doorbell_napi_work(struct work_struct *work) +{ + struct ionic_qcq *qcq = container_of(work, struct ionic_qcq, + doorbell_napi_work); + ionic_napi_schedule_do_softirq(&qcq->napi); +} + static int ionic_get_preferred_cpu(struct ionic *ionic, struct ionic_intr_info *intr) { @@ -66,6 +73,18 @@ static int ionic_get_preferred_cpu(struct ionic *ionic, return cpu; } +static void ionic_queue_dbell_napi_work(struct ionic *ionic, + struct ionic_qcq *qcq) +{ + int cpu; + + if (!(qcq->flags & IONIC_QCQ_F_INTR)) + return; + + cpu = ionic_get_preferred_cpu(ionic, &qcq->intr); + queue_work_on(cpu, ionic->wq, &qcq->doorbell_napi_work); +} + static void ionic_doorbell_check_dwork(struct work_struct *work) { struct ionic *ionic = container_of(work, struct ionic, @@ -86,8 +105,8 @@ static void ionic_doorbell_check_dwork(struct work_struct *work) int i; for (i = 0; i < lif->nxqs; i++) { - ionic_napi_schedule_do_softirq(&lif->txqcqs[i]->napi); - ionic_napi_schedule_do_softirq(&lif->rxqcqs[i]->napi); + ionic_queue_dbell_napi_work(ionic, lif->txqcqs[i]); + ionic_queue_dbell_napi_work(ionic, lif->rxqcqs[i]); } if (lif->hwstamp_txq && |