diff options
Diffstat (limited to 'drivers/net/ethernet/pensando/ionic/ionic_main.c')
| -rw-r--r-- | drivers/net/ethernet/pensando/ionic/ionic_main.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_main.c b/drivers/net/ethernet/pensando/ionic/ionic_main.c index a13530ec4dd8..1dc79cecc5cc 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_main.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_main.c @@ -289,6 +289,35 @@ static void ionic_adminq_cb(struct ionic_queue *q, complete_all(&ctx->work); } +bool ionic_adminq_poke_doorbell(struct ionic_queue *q) +{ + struct ionic_lif *lif = q->lif; + unsigned long now, then, dif; + unsigned long irqflags; + + spin_lock_irqsave(&lif->adminq_lock, irqflags); + + if (q->tail_idx == q->head_idx) { + spin_unlock_irqrestore(&lif->adminq_lock, irqflags); + return false; + } + + now = READ_ONCE(jiffies); + then = q->dbell_jiffies; + dif = now - then; + + if (dif > q->dbell_deadline) { + ionic_dbell_ring(q->lif->kern_dbpage, q->hw_type, + q->dbval | q->head_idx); + + q->dbell_jiffies = now; + } + + spin_unlock_irqrestore(&lif->adminq_lock, irqflags); + + return true; +} + int ionic_adminq_post(struct ionic_lif *lif, struct ionic_admin_ctx *ctx) { struct ionic_desc_info *desc_info; @@ -359,7 +388,7 @@ int ionic_adminq_wait(struct ionic_lif *lif, struct ionic_admin_ctx *ctx, break; /* force a check of FW status and break out if FW reset */ - (void)ionic_heartbeat_check(lif->ionic); + ionic_heartbeat_check(lif->ionic); if ((test_bit(IONIC_LIF_F_FW_RESET, lif->state) && !lif->ionic->idev.fw_status_ready) || test_bit(IONIC_LIF_F_FW_STOPPING, lif->state)) { @@ -647,7 +676,7 @@ int ionic_port_init(struct ionic *ionic) err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT); ionic_dev_cmd_port_state(&ionic->idev, IONIC_PORT_ADMIN_STATE_UP); - (void)ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT); + ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT); mutex_unlock(&ionic->dev_cmd_lock); if (err) { |