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Message-Id: <20190708192532.27420-19-snelson@pensando.io>
Date: Mon, 8 Jul 2019 12:25:31 -0700
From: Shannon Nelson <snelson@...sando.io>
To: snelson@...sando.io, netdev@...r.kernel.org
Subject: [PATCH v3 net-next 18/19] ionic: Add coalesce and other features
Interrupt coalescing, tunable copybreak value, and
tx timeout.
Signed-off-by: Shannon Nelson <snelson@...sando.io>
---
drivers/net/ethernet/pensando/ionic/ionic.h | 2 +-
.../ethernet/pensando/ionic/ionic_ethtool.c | 105 ++++++++++++++++++
.../net/ethernet/pensando/ionic/ionic_lif.c | 13 ++-
.../net/ethernet/pensando/ionic/ionic_lif.h | 1 +
4 files changed, 119 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/pensando/ionic/ionic.h b/drivers/net/ethernet/pensando/ionic/ionic.h
index 9b720187b549..cd08166f73a9 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic.h
+++ b/drivers/net/ethernet/pensando/ionic/ionic.h
@@ -11,7 +11,7 @@ struct lif;
#define DRV_NAME "ionic"
#define DRV_DESCRIPTION "Pensando Ethernet NIC Driver"
-#define DRV_VERSION "0.11.0-k"
+#define DRV_VERSION "0.11.0-44-k"
#define PCI_VENDOR_ID_PENSANDO 0x1dd8
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
index 403882a5e09e..7e46b5d7cd65 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
@@ -383,6 +383,75 @@ static int ionic_get_coalesce(struct net_device *netdev,
return 0;
}
+static int ionic_set_coalesce(struct net_device *netdev,
+ struct ethtool_coalesce *coalesce)
+{
+ struct lif *lif = netdev_priv(netdev);
+ struct identity *ident = &lif->ionic->ident;
+ struct ionic_dev *idev = &lif->ionic->idev;
+ u32 tx_coal, rx_coal;
+ struct qcq *qcq;
+ unsigned int i;
+
+ if (coalesce->rx_max_coalesced_frames ||
+ coalesce->rx_coalesce_usecs_irq ||
+ coalesce->rx_max_coalesced_frames_irq ||
+ coalesce->tx_max_coalesced_frames ||
+ coalesce->tx_coalesce_usecs_irq ||
+ coalesce->tx_max_coalesced_frames_irq ||
+ coalesce->stats_block_coalesce_usecs ||
+ coalesce->use_adaptive_rx_coalesce ||
+ coalesce->use_adaptive_tx_coalesce ||
+ coalesce->pkt_rate_low ||
+ coalesce->rx_coalesce_usecs_low ||
+ coalesce->rx_max_coalesced_frames_low ||
+ coalesce->tx_coalesce_usecs_low ||
+ coalesce->tx_max_coalesced_frames_low ||
+ coalesce->pkt_rate_high ||
+ coalesce->rx_coalesce_usecs_high ||
+ coalesce->rx_max_coalesced_frames_high ||
+ coalesce->tx_coalesce_usecs_high ||
+ coalesce->tx_max_coalesced_frames_high ||
+ coalesce->rate_sample_interval)
+ return -EINVAL;
+
+ if (ident->dev.intr_coal_div == 0)
+ return -EIO;
+
+ /* Convert from usecs to device units */
+ tx_coal = coalesce->tx_coalesce_usecs *
+ le32_to_cpu(ident->dev.intr_coal_mult) /
+ le32_to_cpu(ident->dev.intr_coal_div);
+ rx_coal = coalesce->rx_coalesce_usecs *
+ le32_to_cpu(ident->dev.intr_coal_mult) /
+ le32_to_cpu(ident->dev.intr_coal_div);
+
+ if (tx_coal > INTR_CTRL_COAL_MAX || rx_coal > INTR_CTRL_COAL_MAX)
+ return -ERANGE;
+
+ if (coalesce->tx_coalesce_usecs != lif->tx_coalesce_usecs) {
+ for (i = 0; i < lif->nxqs; i++) {
+ qcq = lif->txqcqs[i].qcq;
+ ionic_intr_coal_init(idev->intr_ctrl,
+ qcq->intr.index,
+ tx_coal);
+ }
+ lif->tx_coalesce_usecs = coalesce->tx_coalesce_usecs;
+ }
+
+ if (coalesce->rx_coalesce_usecs != lif->rx_coalesce_usecs) {
+ for (i = 0; i < lif->nxqs; i++) {
+ qcq = lif->rxqcqs[i].qcq;
+ ionic_intr_coal_init(idev->intr_ctrl,
+ qcq->intr.index,
+ rx_coal);
+ }
+ lif->rx_coalesce_usecs = coalesce->rx_coalesce_usecs;
+ }
+
+ return 0;
+}
+
static void ionic_get_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring)
{
@@ -570,6 +639,39 @@ static int ionic_set_priv_flags(struct net_device *netdev, u32 priv_flags)
return 0;
}
+static int ionic_set_tunable(struct net_device *dev,
+ const struct ethtool_tunable *tuna,
+ const void *data)
+{
+ struct lif *lif = netdev_priv(dev);
+
+ switch (tuna->id) {
+ case ETHTOOL_RX_COPYBREAK:
+ lif->rx_copybreak = *(u32 *)data;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+static int ionic_get_tunable(struct net_device *netdev,
+ const struct ethtool_tunable *tuna, void *data)
+{
+ struct lif *lif = netdev_priv(netdev);
+
+ switch (tuna->id) {
+ case ETHTOOL_RX_COPYBREAK:
+ *(u32 *)data = lif->rx_copybreak;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
static int ionic_get_module_info(struct net_device *netdev,
struct ethtool_modinfo *modinfo)
@@ -655,6 +757,7 @@ static const struct ethtool_ops ionic_ethtool_ops = {
.get_link = ethtool_op_get_link,
.get_link_ksettings = ionic_get_link_ksettings,
.get_coalesce = ionic_get_coalesce,
+ .set_coalesce = ionic_set_coalesce,
.get_ringparam = ionic_get_ringparam,
.set_ringparam = ionic_set_ringparam,
.get_channels = ionic_get_channels,
@@ -669,6 +772,8 @@ static const struct ethtool_ops ionic_ethtool_ops = {
.set_rxfh = ionic_set_rxfh,
.get_priv_flags = ionic_get_priv_flags,
.set_priv_flags = ionic_set_priv_flags,
+ .get_tunable = ionic_get_tunable,
+ .set_tunable = ionic_set_tunable,
.get_module_info = ionic_get_module_info,
.get_module_eeprom = ionic_get_module_eeprom,
.get_pauseparam = ionic_get_pauseparam,
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 68a9975e34c6..8473b065763b 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -744,9 +744,19 @@ static int ionic_change_mtu(struct net_device *netdev, int new_mtu)
return err;
}
+static void ionic_tx_timeout_work(struct work_struct *ws)
+{
+ struct lif *lif = container_of(ws, struct lif, tx_timeout_work);
+
+ netdev_info(lif->netdev, "Tx Timeout recovery\n");
+ ionic_reset_queues(lif);
+}
+
static void ionic_tx_timeout(struct net_device *netdev)
{
- netdev_info(netdev, "%s: stubbed\n", __func__);
+ struct lif *lif = netdev_priv(netdev);
+
+ schedule_work(&lif->tx_timeout_work);
}
static int ionic_vlan_rx_add_vid(struct net_device *netdev, __be16 proto,
@@ -2009,6 +2019,7 @@ static int ionic_lif_init(struct lif *lif)
ionic_link_status_check(lif);
+ INIT_WORK(&lif->tx_timeout_work, ionic_tx_timeout_work);
return 0;
err_out_notifyq_deinit:
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.h b/drivers/net/ethernet/pensando/ionic/ionic_lif.h
index 0e6908f959f2..76cc519acd5a 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.h
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.h
@@ -180,6 +180,7 @@ struct lif {
unsigned int dbid_count;
struct dentry *dentry;
u32 flags;
+ struct work_struct tx_timeout_work;
};
#define lif_to_txqcq(lif, i) ((lif)->txqcqs[i].qcq)
--
2.17.1
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