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Message-Id: <20200826164214.31792-5-snelson@pensando.io>
Date: Wed, 26 Aug 2020 09:42:06 -0700
From: Shannon Nelson <snelson@...sando.io>
To: netdev@...r.kernel.org, davem@...emloft.net
Cc: Shannon Nelson <snelson@...sando.io>
Subject: [PATCH net-next 04/12] ionic: remove lif list concept
As we aren't yet supporting multiple lifs, we can remove
complexity by removing the list concept and related code,
to be re-engineered later when actually needed.
Signed-off-by: Shannon Nelson <snelson@...sando.io>
---
drivers/net/ethernet/pensando/ionic/ionic.h | 4 +-
.../ethernet/pensando/ionic/ionic_bus_pci.c | 32 +++--
.../net/ethernet/pensando/ionic/ionic_dev.c | 6 +-
.../ethernet/pensando/ionic/ionic_devlink.c | 2 +-
.../net/ethernet/pensando/ionic/ionic_lif.c | 131 +++++-------------
.../net/ethernet/pensando/ionic/ionic_lif.h | 14 +-
6 files changed, 62 insertions(+), 127 deletions(-)
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);
--
2.17.1
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