ionic: Only run the doorbell workaround for certain asic_type
If the doorbell workaround isn't required for a certain asic_type then there is no need to run the associated code. Since newer FW versions are finally reporting their asic_type we can use a flag to determine whether or not to do the workaround. Signed-off-by: Brett Creeley <brett.creeley@amd.com> Signed-off-by: Shannon Nelson <shannon.nelson@amd.com> Link: https://lore.kernel.org/r/20240619003257.6138-9-shannon.nelson@amd.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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@ -18,6 +18,8 @@ struct ionic_lif;
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#define PCI_DEVICE_ID_PENSANDO_IONIC_ETH_PF 0x1002
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#define PCI_DEVICE_ID_PENSANDO_IONIC_ETH_VF 0x1003
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#define IONIC_ASIC_TYPE_ELBA 2
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#define DEVCMD_TIMEOUT 5
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#define IONIC_ADMINQ_TIME_SLICE msecs_to_jiffies(100)
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@ -96,4 +98,6 @@ int ionic_port_identify(struct ionic *ionic);
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int ionic_port_init(struct ionic *ionic);
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int ionic_port_reset(struct ionic *ionic);
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bool ionic_doorbell_wa(struct ionic *ionic);
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#endif /* _IONIC_H_ */
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@ -412,6 +412,7 @@ static void ionic_remove(struct pci_dev *pdev)
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if (test_and_clear_bit(IONIC_LIF_F_FW_RESET, ionic->lif->state))
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set_bit(IONIC_LIF_F_FW_STOPPING, ionic->lif->state);
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if (ionic->lif->doorbell_wa)
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cancel_delayed_work_sync(&ionic->doorbell_check_dwork);
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ionic_lif_unregister(ionic->lif);
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ionic_devlink_unregister(ionic);
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@ -128,6 +128,13 @@ static void ionic_doorbell_check_dwork(struct work_struct *work)
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ionic_queue_doorbell_check(ionic, IONIC_NAPI_DEADLINE);
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}
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bool ionic_doorbell_wa(struct ionic *ionic)
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{
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u8 asic_type = ionic->idev.dev_info.asic_type;
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return !asic_type || asic_type == IONIC_ASIC_TYPE_ELBA;
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}
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static int ionic_watchdog_init(struct ionic *ionic)
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{
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struct ionic_dev *idev = &ionic->idev;
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@ -151,6 +158,8 @@ static int ionic_watchdog_init(struct ionic *ionic)
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dev_err(ionic->dev, "alloc_workqueue failed");
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return -ENOMEM;
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}
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if (ionic_doorbell_wa(ionic))
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INIT_DELAYED_WORK(&ionic->doorbell_check_dwork,
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ionic_doorbell_check_dwork);
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@ -161,6 +170,9 @@ void ionic_queue_doorbell_check(struct ionic *ionic, int delay)
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{
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int cpu;
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if (!ionic->lif->doorbell_wa)
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return;
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cpu = ionic_get_preferred_cpu(ionic, &ionic->lif->adminqcq->intr);
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queue_delayed_work_on(cpu, ionic->wq, &ionic->doorbell_check_dwork,
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delay);
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@ -344,6 +344,7 @@ static int ionic_qcq_disable(struct ionic_lif *lif, struct ionic_qcq *qcq, int f
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if (qcq->flags & IONIC_QCQ_F_INTR) {
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struct ionic_dev *idev = &lif->ionic->idev;
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if (lif->doorbell_wa)
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cancel_work_sync(&qcq->doorbell_napi_work);
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cancel_work_sync(&qcq->dim.work);
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ionic_intr_mask(idev->intr_ctrl, qcq->intr.index,
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@ -691,6 +692,7 @@ static int ionic_qcq_alloc(struct ionic_lif *lif, unsigned int type,
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INIT_WORK(&new->dim.work, ionic_dim_work);
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new->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_CQE;
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if (lif->doorbell_wa)
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INIT_WORK(&new->doorbell_napi_work, ionic_doorbell_napi_work);
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*qcq = new;
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@ -1215,12 +1217,14 @@ static int ionic_adminq_napi(struct napi_struct *napi, int budget)
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ionic_intr_credits(idev->intr_ctrl, intr->index, credits, flags);
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}
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if (lif->doorbell_wa) {
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if (!a_work)
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ionic_adminq_poke_doorbell(&lif->adminqcq->q);
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if (lif->hwstamp_rxq && !rx_work)
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ionic_rxq_poke_doorbell(&lif->hwstamp_rxq->q);
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if (lif->hwstamp_txq && !tx_work)
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ionic_txq_poke_doorbell(&lif->hwstamp_txq->q);
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}
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return work_done;
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}
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@ -3749,6 +3753,7 @@ int ionic_lif_init(struct ionic_lif *lif)
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goto err_out_notifyq_deinit;
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lif->rx_copybreak = IONIC_RX_COPYBREAK_DEFAULT;
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lif->doorbell_wa = ionic_doorbell_wa(lif->ionic);
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set_bit(IONIC_LIF_F_INITED, lif->state);
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@ -211,6 +211,7 @@ struct ionic_lif {
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u16 rx_copybreak;
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u16 rx_mode;
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bool registered;
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bool doorbell_wa;
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u16 lif_type;
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unsigned int link_down_count;
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unsigned int nmcast;
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@ -950,7 +950,7 @@ int ionic_tx_napi(struct napi_struct *napi, int budget)
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work_done, flags);
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}
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if (!work_done)
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if (!work_done && cq->bound_q->lif->doorbell_wa)
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ionic_txq_poke_doorbell(&qcq->q);
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return work_done;
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@ -993,7 +993,7 @@ int ionic_rx_napi(struct napi_struct *napi, int budget)
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work_done, flags);
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}
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if (!work_done)
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if (!work_done && cq->bound_q->lif->doorbell_wa)
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ionic_rxq_poke_doorbell(&qcq->q);
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return work_done;
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@ -1038,10 +1038,12 @@ int ionic_txrx_napi(struct napi_struct *napi, int budget)
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tx_work_done + rx_work_done, flags);
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}
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if (lif->doorbell_wa) {
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if (!rx_work_done)
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ionic_rxq_poke_doorbell(&rxqcq->q);
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if (!tx_work_done)
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ionic_txq_poke_doorbell(&txqcq->q);
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}
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return rx_work_done;
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}
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