[v2,net-next,04/12] ionic: remove lif list concept

Message ID	20200827180735.38166-5-snelson@pensando.io
State	Superseded
Delegated to:	David Miller
Headers	show Return-Path: <netdev-owner@vger.kernel.org> From: Shannon Nelson <snelson@pensando.io> To: netdev@vger.kernel.org, davem@davemloft.net Cc: Shannon Nelson <snelson@pensando.io> Subject: [PATCH v2 net-next 04/12] ionic: remove lif list concept Date: Thu, 27 Aug 2020 11:07:27 -0700 Message-Id: <20200827180735.38166-5-snelson@pensando.io> In-Reply-To: <20200827180735.38166-1-snelson@pensando.io> References: <20200827180735.38166-1-snelson@pensando.io> Sender: netdev-owner@vger.kernel.org Precedence: bulk
Series	ionic memory usage rework \| expand [v2,net-next,00/12] ionic memory usage rework [v2,net-next,01/12] ionic: set MTU floor at ETH_MIN_MTU [v2,net-next,02/12] ionic: fix up a couple of debug strings [v2,net-next,03/12] ionic: use kcalloc for new arrays [v2,net-next,04/12] ionic: remove lif list concept [v2,net-next,05/12] ionic: rework and simplify handling of the queue stats block [v2,net-next,06/12] ionic: clean up unnecessary non-static functions [v2,net-next,07/12] ionic: reduce contiguous memory allocation requirement [v2,net-next,08/12] ionic: use index not pointer for queue tracking [v2,net-next,09/12] ionic: change mtu without full queue rebuild [v2,net-next,10/12] ionic: change the descriptor ring length without full reset [v2,net-next,11/12] ionic: change queue count with no reset [v2,net-next,12/12] ionic: pull reset_queues into tx_timeout handler

diff --git a/drivers/net/ethernet/pensando/ionic/ionic.h b/drivers/net/ethernet/pensando/ionic/ionic.h index f5a910c458ba..f699ed19eb4f 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic.h +++ b/drivers/net/ethernet/pensando/ionic/ionic.h @@ -42,13 +42,11 @@ struct ionic { struct ionic_dev_bar bars[IONIC_BARS_MAX]; unsigned int num_bars; struct ionic_identity ident; - struct list_head lifs; - struct ionic_lif *master_lif; + struct ionic_lif *lif; unsigned int nnqs_per_lif; unsigned int neqs_per_lif; unsigned int ntxqs_per_lif; unsigned int nrxqs_per_lif; - DECLARE_BITMAP(lifbits, IONIC_LIFS_MAX); unsigned int nintrs; DECLARE_BITMAP(intrs, IONIC_INTR_CTRL_REGS_MAX); struct work_struct nb_work; diff --git a/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c b/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c index 85c686c16741..d1d6fb6669e5 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c @@ -294,21 +294,21 @@ static int ionic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_out_port_reset; } - err = ionic_lifs_size(ionic); + err = ionic_lif_size(ionic); if (err) { - dev_err(dev, "Cannot size LIFs: %d, aborting\n", err); + dev_err(dev, "Cannot size LIF: %d, aborting\n", err); goto err_out_port_reset; } - err = ionic_lifs_alloc(ionic); + err = ionic_lif_alloc(ionic); if (err) { - dev_err(dev, "Cannot allocate LIFs: %d, aborting\n", err); + dev_err(dev, "Cannot allocate LIF: %d, aborting\n", err); goto err_out_free_irqs; } - err = ionic_lifs_init(ionic); + err = ionic_lif_init(ionic->lif); if (err) { - dev_err(dev, "Cannot init LIFs: %d, aborting\n", err); + dev_err(dev, "Cannot init LIF: %d, aborting\n", err); goto err_out_free_lifs; } @@ -321,9 +321,9 @@ static int ionic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) dev_err(dev, "Cannot enable existing VFs: %d\n", err); } - err = ionic_lifs_register(ionic); + err = ionic_lif_register(ionic->lif); if (err) { - dev_err(dev, "Cannot register LIFs: %d, aborting\n", err); + dev_err(dev, "Cannot register LIF: %d, aborting\n", err); goto err_out_deinit_lifs; } @@ -336,12 +336,13 @@ static int ionic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) return 0; err_out_deregister_lifs: - ionic_lifs_unregister(ionic); + ionic_lif_unregister(ionic->lif); err_out_deinit_lifs: ionic_vf_dealloc(ionic); - ionic_lifs_deinit(ionic); + ionic_lif_deinit(ionic->lif); err_out_free_lifs: - ionic_lifs_free(ionic); + ionic_lif_free(ionic->lif); + ionic->lif = NULL; err_out_free_irqs: ionic_bus_free_irq_vectors(ionic); err_out_port_reset: @@ -377,11 +378,12 @@ static void ionic_remove(struct pci_dev *pdev) if (!ionic) return; - if (ionic->master_lif) { + if (ionic->lif) { ionic_devlink_unregister(ionic); - ionic_lifs_unregister(ionic); - ionic_lifs_deinit(ionic); - ionic_lifs_free(ionic); + ionic_lif_unregister(ionic->lif); + ionic_lif_deinit(ionic->lif); + ionic_lif_free(ionic->lif); + ionic->lif = NULL; ionic_bus_free_irq_vectors(ionic); } diff --git a/drivers/net/ethernet/pensando/ionic/ionic_dev.c b/drivers/net/ethernet/pensando/ionic/ionic_dev.c index d83eff0ae0ac..25cf376f3b40 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_dev.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.c @@ -21,8 +21,8 @@ static void ionic_watchdog_cb(struct timer_list *t) hb = ionic_heartbeat_check(ionic); - if (hb >= 0 && ionic->master_lif) - ionic_link_status_check_request(ionic->master_lif); + if (hb >= 0 && ionic->lif) + ionic_link_status_check_request(ionic->lif); } void ionic_init_devinfo(struct ionic *ionic) @@ -126,7 +126,7 @@ int ionic_heartbeat_check(struct ionic *ionic) /* is this a transition? */ if (fw_status != idev->last_fw_status && idev->last_fw_status != 0xff) { - struct ionic_lif *lif = ionic->master_lif; + struct ionic_lif *lif = ionic->lif; bool trigger = false; if (!fw_status || fw_status == 0xff) { diff --git a/drivers/net/ethernet/pensando/ionic/ionic_devlink.c b/drivers/net/ethernet/pensando/ionic/ionic_devlink.c index c4f4fd469fe3..8d9fb2e19cca 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_devlink.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_devlink.c @@ -85,7 +85,7 @@ int ionic_devlink_register(struct ionic *ionic) dev_err(ionic->dev, "devlink_port_register failed: %d\n", err); else devlink_port_type_eth_set(&ionic->dl_port, - ionic->master_lif->netdev); + ionic->lif->netdev); return err; } diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c index d73beddc30cc..de9da16db3a8 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c @@ -2045,7 +2045,7 @@ int ionic_reset_queues(struct ionic_lif *lif, ionic_reset_cb cb, void *arg) return err; } -static struct ionic_lif *ionic_lif_alloc(struct ionic *ionic, unsigned int index) +int ionic_lif_alloc(struct ionic *ionic) { struct device *dev = ionic->dev; union ionic_lif_identity *lid; @@ -2056,7 +2056,7 @@ static struct ionic_lif *ionic_lif_alloc(struct ionic *ionic, unsigned int index lid = kzalloc(sizeof(*lid), GFP_KERNEL); if (!lid) - return ERR_PTR(-ENOMEM); + return -ENOMEM; netdev = alloc_etherdev_mqs(sizeof(*lif), ionic->ntxqs_per_lif, ionic->ntxqs_per_lif); @@ -2070,7 +2070,7 @@ static struct ionic_lif *ionic_lif_alloc(struct ionic *ionic, unsigned int index lif = netdev_priv(netdev); lif->netdev = netdev; - ionic->master_lif = lif; + ionic->lif = lif; netdev->netdev_ops = &ionic_netdev_ops; ionic_ethtool_set_ops(netdev); @@ -2089,7 +2089,7 @@ static struct ionic_lif *ionic_lif_alloc(struct ionic *ionic, unsigned int index lif->nxqs = ionic->ntxqs_per_lif; lif->ionic = ionic; - lif->index = index; + lif->index = 0; lif->ntxq_descs = IONIC_DEF_TXRX_DESC; lif->nrxq_descs = IONIC_DEF_TXRX_DESC; lif->tx_budget = IONIC_TX_BUDGET_DEFAULT; @@ -2101,7 +2101,7 @@ static struct ionic_lif *ionic_lif_alloc(struct ionic *ionic, unsigned int index lif->tx_coalesce_usecs = lif->rx_coalesce_usecs; lif->tx_coalesce_hw = lif->rx_coalesce_hw; - snprintf(lif->name, sizeof(lif->name), "lif%u", index); + snprintf(lif->name, sizeof(lif->name), "lif%u", lif->index); spin_lock_init(&lif->adminq_lock); @@ -2121,7 +2121,8 @@ static struct ionic_lif *ionic_lif_alloc(struct ionic *ionic, unsigned int index ionic_debugfs_add_lif(lif); - /* allocate queues */ + /* allocate control queues and txrx queue arrays */ + ionic_lif_queue_identify(lif); err = ionic_qcqs_alloc(lif); if (err) goto err_out_free_lif_info; @@ -2140,9 +2141,7 @@ static struct ionic_lif *ionic_lif_alloc(struct ionic *ionic, unsigned int index } netdev_rss_key_fill(lif->rss_hash_key, IONIC_RSS_HASH_KEY_SIZE); - list_add_tail(&lif->list, &ionic->lifs); - - return lif; + return 0; err_out_free_qcqs: ionic_qcqs_free(lif); @@ -2156,27 +2155,7 @@ static struct ionic_lif *ionic_lif_alloc(struct ionic *ionic, unsigned int index err_out_free_lid: kfree(lid); - return ERR_PTR(err); -} - -int ionic_lifs_alloc(struct ionic *ionic) -{ - struct ionic_lif *lif; - - INIT_LIST_HEAD(&ionic->lifs); - - /* only build the first lif, others are for later features */ - set_bit(0, ionic->lifbits); - - lif = ionic_lif_alloc(ionic, 0); - if (IS_ERR_OR_NULL(lif)) { - clear_bit(0, ionic->lifbits); - return -ENOMEM; - } - - ionic_lif_queue_identify(lif); - - return 0; + return err; } static void ionic_lif_reset(struct ionic_lif *lif) @@ -2211,7 +2190,7 @@ static void ionic_lif_handle_fw_down(struct ionic_lif *lif) ionic_txrx_deinit(lif); ionic_txrx_free(lif); } - ionic_lifs_deinit(ionic); + ionic_lif_deinit(lif); ionic_reset(ionic); ionic_qcqs_free(lif); @@ -2234,7 +2213,7 @@ static void ionic_lif_handle_fw_up(struct ionic_lif *lif) if (err) goto err_out; - err = ionic_lifs_init(ionic); + err = ionic_lif_init(lif); if (err) goto err_qcqs_free; @@ -2263,14 +2242,14 @@ static void ionic_lif_handle_fw_up(struct ionic_lif *lif) err_txrx_free: ionic_txrx_free(lif); err_lifs_deinit: - ionic_lifs_deinit(ionic); + ionic_lif_deinit(lif); err_qcqs_free: ionic_qcqs_free(lif); err_out: dev_err(ionic->dev, "FW Up: LIFs restart failed - err %d\n", err); } -static void ionic_lif_free(struct ionic_lif *lif) +void ionic_lif_free(struct ionic_lif *lif) { struct device *dev = lif->ionic->dev; @@ -2299,23 +2278,10 @@ static void ionic_lif_free(struct ionic_lif *lif) /* free netdev & lif */ ionic_debugfs_del_lif(lif); - list_del(&lif->list); free_netdev(lif->netdev); } -void ionic_lifs_free(struct ionic *ionic) -{ - struct list_head *cur, *tmp; - struct ionic_lif *lif; - - list_for_each_safe(cur, tmp, &ionic->lifs) { - lif = list_entry(cur, struct ionic_lif, list); - - ionic_lif_free(lif); - } -} - -static void ionic_lif_deinit(struct ionic_lif *lif) +void ionic_lif_deinit(struct ionic_lif *lif) { if (!test_and_clear_bit(IONIC_LIF_F_INITED, lif->state)) return; @@ -2336,17 +2302,6 @@ static void ionic_lif_deinit(struct ionic_lif *lif) ionic_lif_reset(lif); } -void ionic_lifs_deinit(struct ionic *ionic) -{ - struct list_head *cur, *tmp; - struct ionic_lif *lif; - - list_for_each_safe(cur, tmp, &ionic->lifs) { - lif = list_entry(cur, struct ionic_lif, list); - ionic_lif_deinit(lif); - } -} - static int ionic_lif_adminq_init(struct ionic_lif *lif) { struct device *dev = lif->ionic->dev; @@ -2492,7 +2447,7 @@ static int ionic_station_set(struct ionic_lif *lif) return 0; } -static int ionic_lif_init(struct ionic_lif *lif) +int ionic_lif_init(struct ionic_lif *lif) { struct ionic_dev *idev = &lif->ionic->idev; struct device *dev = lif->ionic->dev; @@ -2582,22 +2537,6 @@ static int ionic_lif_init(struct ionic_lif *lif) return err; } -int ionic_lifs_init(struct ionic *ionic) -{ - struct list_head *cur, *tmp; - struct ionic_lif *lif; - int err; - - list_for_each_safe(cur, tmp, &ionic->lifs) { - lif = list_entry(cur, struct ionic_lif, list); - err = ionic_lif_init(lif); - if (err) - return err; - } - - return 0; -} - static void ionic_lif_notify_work(struct work_struct *ws) { } @@ -2646,45 +2585,41 @@ static int ionic_lif_notify(struct notifier_block *nb, return NOTIFY_DONE; } -int ionic_lifs_register(struct ionic *ionic) +int ionic_lif_register(struct ionic_lif *lif) { int err; - INIT_WORK(&ionic->nb_work, ionic_lif_notify_work); + INIT_WORK(&lif->ionic->nb_work, ionic_lif_notify_work); - ionic->nb.notifier_call = ionic_lif_notify; + lif->ionic->nb.notifier_call = ionic_lif_notify; - err = register_netdevice_notifier(&ionic->nb); + err = register_netdevice_notifier(&lif->ionic->nb); if (err) - ionic->nb.notifier_call = NULL; + lif->ionic->nb.notifier_call = NULL; /* only register LIF0 for now */ - err = register_netdev(ionic->master_lif->netdev); + err = register_netdev(lif->netdev); if (err) { - dev_err(ionic->dev, "Cannot register net device, aborting\n"); + dev_err(lif->ionic->dev, "Cannot register net device, aborting\n"); return err; } - ionic->master_lif->registered = true; - ionic_lif_set_netdev_info(ionic->master_lif); + lif->registered = true; + ionic_lif_set_netdev_info(lif); return 0; } -void ionic_lifs_unregister(struct ionic *ionic) +void ionic_lif_unregister(struct ionic_lif *lif) { - if (ionic->nb.notifier_call) { - unregister_netdevice_notifier(&ionic->nb); - cancel_work_sync(&ionic->nb_work); - ionic->nb.notifier_call = NULL; + if (lif->ionic->nb.notifier_call) { + unregister_netdevice_notifier(&lif->ionic->nb); + cancel_work_sync(&lif->ionic->nb_work); + lif->ionic->nb.notifier_call = NULL; } - /* There is only one lif ever registered in the - * current model, so don't bother searching the - * ionic->lif for candidates to unregister - */ - if (ionic->master_lif && - ionic->master_lif->netdev->reg_state == NETREG_REGISTERED) - unregister_netdev(ionic->master_lif->netdev); + if (lif->netdev->reg_state == NETREG_REGISTERED) + unregister_netdev(lif->netdev); + lif->registered = false; } static void ionic_lif_queue_identify(struct ionic_lif *lif) @@ -2803,7 +2738,7 @@ int ionic_lif_identify(struct ionic *ionic, u8 lif_type, return 0; } -int ionic_lifs_size(struct ionic *ionic) +int ionic_lif_size(struct ionic *ionic) { struct ionic_identity *ident = &ionic->ident; unsigned int nintrs, dev_nintrs; diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.h b/drivers/net/ethernet/pensando/ionic/ionic_lif.h index 1ee3b14c8d50..95d85502c18d 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_lif.h +++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.h @@ -242,15 +242,15 @@ void ionic_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *ns); void ionic_lif_deferred_enqueue(struct ionic_deferred *def, struct ionic_deferred_work *work); -int ionic_lifs_alloc(struct ionic *ionic); -void ionic_lifs_free(struct ionic *ionic); -void ionic_lifs_deinit(struct ionic *ionic); -int ionic_lifs_init(struct ionic *ionic); -int ionic_lifs_register(struct ionic *ionic); -void ionic_lifs_unregister(struct ionic *ionic); +int ionic_lif_alloc(struct ionic *ionic); +int ionic_lif_init(struct ionic_lif *lif); +void ionic_lif_free(struct ionic_lif *lif); +void ionic_lif_deinit(struct ionic_lif *lif); +int ionic_lif_register(struct ionic_lif *lif); +void ionic_lif_unregister(struct ionic_lif *lif); int ionic_lif_identify(struct ionic *ionic, u8 lif_type, union ionic_lif_identity *lif_ident); -int ionic_lifs_size(struct ionic *ionic); +int ionic_lif_size(struct ionic *ionic); int ionic_lif_rss_config(struct ionic_lif *lif, u16 types, const u8 *key, const u32 *indir);

[v2,net-next,04/12] ionic: remove lif list concept

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