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netdev: Kill NETIF_F_MULTI_QUEUE.

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There is no need for a feature bit for something that
can be tested by simply checking the TX queue count.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-07-17 01:52:12 -07:00
parent e8a0464cc9
commit 09e83b5d7d
7 changed files with 1 additions and 24 deletions
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11
Documentation/networking/multiqueue.txt
View File

@ -24,15 +24,4 @@ netif_{start|stop|wake}_subqueue() functions to manage each queue while the
device is still operational. netdev->queue_lock is still used when the device
comes online or when it's completely shut down (unregister_netdev(), etc.).
Finally, the base driver should indicate that it is a multiqueue device. The
feature flag NETIF_F_MULTI_QUEUE should be added to the netdev->features
bitmap on device initialization. Below is an example from e1000:
#ifdef CONFIG_E1000_MQ
if ( (adapter->hw.mac.type == e1000_82571) ||
(adapter->hw.mac.type == e1000_82572) ||
(adapter->hw.mac.type == e1000_80003es2lan))
netdev->features |= NETIF_F_MULTI_QUEUE;
#endif
Author: Peter P. Waskiewicz Jr. <peter.p.waskiewicz.jr@intel.com>

1
drivers/net/cpmac.c
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@ -1165,7 +1165,6 @@ static int __devinit cpmac_probe(struct platform_device *pdev)
dev->set_multicast_list = cpmac_set_multicast_list;
dev->tx_timeout = cpmac_tx_timeout;
dev->ethtool_ops = &cpmac_ethtool_ops;
dev->features |= NETIF_F_MULTI_QUEUE;
netif_napi_add(dev, &priv->napi, cpmac_poll, 64);

2
drivers/net/igb/igb_main.c
View File

@ -1155,8 +1155,6 @@ static int __devinit igb_probe(struct pci_dev *pdev,
if (pci_using_dac)
netdev->features |= NETIF_F_HIGHDMA;
netdev->features |= NETIF_F_MULTI_QUEUE;
netdev->features |= NETIF_F_LLTX;
adapter->en_mng_pt = igb_enable_mng_pass_thru(&adapter->hw);

2
drivers/net/ixgbe/ixgbe_main.c
View File

@ -3566,8 +3566,6 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
if (pci_using_dac)
netdev->features |= NETIF_F_HIGHDMA;
netdev->features |= NETIF_F_MULTI_QUEUE;
/* make sure the EEPROM is good */
if (ixgbe_validate_eeprom_checksum(hw, NULL) < 0) {
dev_err(&pdev->dev, "The EEPROM Checksum Is Not Valid\n");

2
drivers/net/s2io.c
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@ -7966,8 +7966,6 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
dev->features |= NETIF_F_UFO;
dev->features |= NETIF_F_HW_CSUM;
}
if (config->multiq)
dev->features |= NETIF_F_MULTI_QUEUE;
dev->tx_timeout = &s2io_tx_watchdog;
dev->watchdog_timeo = WATCH_DOG_TIMEOUT;
INIT_WORK(&sp->rst_timer_task, s2io_restart_nic);

4
include/linux/netdevice.h
View File

@ -533,7 +533,6 @@ struct net_device
#define NETIF_F_LLTX 4096 /* LockLess TX - deprecated. Please */
/* do not use LLTX in new drivers */
#define NETIF_F_NETNS_LOCAL 8192 /* Does not change network namespaces */
#define NETIF_F_MULTI_QUEUE 16384 /* Has multiple TX/RX queues */
#define NETIF_F_LRO 32768 /* large receive offload */
/* Segmentation offload features */
@ -1163,11 +1162,10 @@ static inline void netif_wake_subqueue(struct net_device *dev, u16 queue_index)
* @dev: network device
*
* Check if device has multiple transmit queues
* Always falls if NETDEVICE_MULTIQUEUE is not configured
*/
static inline int netif_is_multiqueue(const struct net_device *dev)
{
return (!!(NETIF_F_MULTI_QUEUE & dev->features));
return (dev->num_tx_queues > 1);
}
/* Use this variant when it is known for sure that it

3
net/mac80211/main.c
View File

@ -1678,9 +1678,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
if (!mdev)
goto fail_mdev_alloc;
if (ieee80211_num_queues(hw) > 1)
mdev->features |= NETIF_F_MULTI_QUEUE;
mwdev = netdev_priv(mdev);
mdev->ieee80211_ptr = mwdev;
mwdev->wiphy = local->hw.wiphy;