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Date: Wed, 24 Sep 2008 11:23:32 -0700
From: Scott Feldman <scofeldm@...co.com>
To: jgarzik@...ox.com
Cc: netdev@...r.kernel.org
Subject: [PATCH 2/4] enic: fixes for review items from Ben Hutchings
enic: fixes for review items from Ben Hutchings
Fixes for review items from Ben Hutchings:
- use netdev->net_stats rather than private net_stats
- use ethtool op .get_sset_count rather than .get_stats_count
- err out if setting Tx/Rx csum or TSO using ethtool and setting is
not enabled for device.
- pass in jiffies + constant to round_jiffies
- return err if new MTU is out-of-bounds
Signed-off-by: Scott Feldman <scofeldm@...co.com>
---
drivers/net/enic/enic.h | 1 -
drivers/net/enic/enic_main.c | 62 +++++++++++++++++++++++++-----------------
2 files changed, 37 insertions(+), 26 deletions(-)
diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h
index fb83c92..9e0d484 100644
--- a/drivers/net/enic/enic.h
+++ b/drivers/net/enic/enic.h
@@ -75,7 +75,6 @@ struct enic {
struct vnic_enet_config config;
struct vnic_dev_bar bar0;
struct vnic_dev *vdev;
- struct net_device_stats net_stats;
struct timer_list notify_timer;
struct work_struct reset;
struct msix_entry msix_entry[ENIC_MSIX_MAX];
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index 6284594..c741bbf 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -44,7 +44,6 @@
#include "enic.h"
#define ENIC_NOTIFY_TIMER_PERIOD (2 * HZ)
-#define ENIC_JUMBO_FIRST_BUF_SIZE 256
/* Supported devices */
static struct pci_device_id enic_id_table[] = {
@@ -168,9 +167,14 @@ static void enic_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
}
}
-static int enic_get_stats_count(struct net_device *netdev)
+static int enic_get_sset_count(struct net_device *netdev, int sset)
{
- return enic_n_tx_stats + enic_n_rx_stats;
+ switch (sset) {
+ case ETH_SS_STATS:
+ return enic_n_tx_stats + enic_n_rx_stats;
+ default:
+ return -EOPNOTSUPP;
+ }
}
static void enic_get_ethtool_stats(struct net_device *netdev,
@@ -200,8 +204,10 @@ static int enic_set_rx_csum(struct net_device *netdev, u32 data)
{
struct enic *enic = netdev_priv(netdev);
- enic->csum_rx_enabled =
- (data && ENIC_SETTING(enic, RXCSUM)) ? 1 : 0;
+ if (data && !ENIC_SETTING(enic, RXCSUM))
+ return -EINVAL;
+
+ enic->csum_rx_enabled = !!data;
return 0;
}
@@ -210,7 +216,10 @@ static int enic_set_tx_csum(struct net_device *netdev, u32 data)
{
struct enic *enic = netdev_priv(netdev);
- if (data && ENIC_SETTING(enic, TXCSUM))
+ if (data && !ENIC_SETTING(enic, TXCSUM))
+ return -EINVAL;
+
+ if (data)
netdev->features |= NETIF_F_HW_CSUM;
else
netdev->features &= ~NETIF_F_HW_CSUM;
@@ -222,7 +231,10 @@ static int enic_set_tso(struct net_device *netdev, u32 data)
{
struct enic *enic = netdev_priv(netdev);
- if (data && ENIC_SETTING(enic, TSO))
+ if (data && !ENIC_SETTING(enic, TSO))
+ return -EINVAL;
+
+ if (data)
netdev->features |=
NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN;
else
@@ -251,7 +263,7 @@ static struct ethtool_ops enic_ethtool_ops = {
.set_msglevel = enic_set_msglevel,
.get_link = ethtool_op_get_link,
.get_strings = enic_get_strings,
- .get_stats_count = enic_get_stats_count,
+ .get_sset_count = enic_get_sset_count,
.get_ethtool_stats = enic_get_ethtool_stats,
.get_rx_csum = enic_get_rx_csum,
.set_rx_csum = enic_set_rx_csum,
@@ -653,25 +665,26 @@ static int enic_hard_start_xmit(struct sk_buff *skb, struct net_device *netdev)
static struct net_device_stats *enic_get_stats(struct net_device *netdev)
{
struct enic *enic = netdev_priv(netdev);
+ struct net_device_stats *net_stats = &netdev->stats;
struct vnic_stats *stats;
spin_lock(&enic->devcmd_lock);
vnic_dev_stats_dump(enic->vdev, &stats);
spin_unlock(&enic->devcmd_lock);
- enic->net_stats.tx_packets = stats->tx.tx_frames_ok;
- enic->net_stats.tx_bytes = stats->tx.tx_bytes_ok;
- enic->net_stats.tx_errors = stats->tx.tx_errors;
- enic->net_stats.tx_dropped = stats->tx.tx_drops;
+ net_stats->tx_packets = stats->tx.tx_frames_ok;
+ net_stats->tx_bytes = stats->tx.tx_bytes_ok;
+ net_stats->tx_errors = stats->tx.tx_errors;
+ net_stats->tx_dropped = stats->tx.tx_drops;
- enic->net_stats.rx_packets = stats->rx.rx_frames_ok;
- enic->net_stats.rx_bytes = stats->rx.rx_bytes_ok;
- enic->net_stats.rx_errors = stats->rx.rx_errors;
- enic->net_stats.multicast = stats->rx.rx_multicast_frames_ok;
- enic->net_stats.rx_crc_errors = stats->rx.rx_crc_errors;
- enic->net_stats.rx_dropped = stats->rx.rx_no_bufs;
+ net_stats->rx_packets = stats->rx.rx_frames_ok;
+ net_stats->rx_bytes = stats->rx.rx_bytes_ok;
+ net_stats->rx_errors = stats->rx.rx_errors;
+ net_stats->multicast = stats->rx.rx_multicast_frames_ok;
+ net_stats->rx_crc_errors = stats->rx.rx_crc_errors;
+ net_stats->rx_dropped = stats->rx.rx_no_bufs;
- return &enic->net_stats;
+ return net_stats;
}
static void enic_reset_mcaddrs(struct enic *enic)
@@ -1110,7 +1123,8 @@ static void enic_notify_timer(unsigned long data)
enic_notify_check(enic);
- mod_timer(&enic->notify_timer, round_jiffies(ENIC_NOTIFY_TIMER_PERIOD));
+ mod_timer(&enic->notify_timer,
+ round_jiffies(jiffies + ENIC_NOTIFY_TIMER_PERIOD));
}
static void enic_free_intr(struct enic *enic)
@@ -1314,14 +1328,12 @@ static int enic_change_mtu(struct net_device *netdev, int new_mtu)
struct enic *enic = netdev_priv(netdev);
int running = netif_running(netdev);
+ if (new_mtu < ENIC_MIN_MTU || new_mtu > ENIC_MAX_MTU)
+ return -EINVAL;
+
if (running)
enic_stop(netdev);
- if (new_mtu < ENIC_MIN_MTU)
- new_mtu = ENIC_MIN_MTU;
- if (new_mtu > ENIC_MAX_MTU)
- new_mtu = ENIC_MAX_MTU;
-
netdev->mtu = new_mtu;
if (netdev->mtu > enic->port_mtu)
--
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