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[PATCH] e1000: MSI support for PCI-e adapters 

MSI support for PCI-e adapters

Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
diff -up net-drivers-2.6/drivers/net/e1000/e1000.h net-drivers-2.6/drivers/net/e1000.new/e1000.h
This commit is contained in:
Malli Chilakala 2005-04-28 19:39:13 -07:00 committed by Jeff Garzik
parent df25e16487
commit fa4f7ef3aa
2 changed files with 18 additions and 0 deletions
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3
drivers/net/e1000/e1000.h
View File

@ -257,5 +257,8 @@ struct e1000_adapter {
int msg_enable;
#ifdef CONFIG_PCI_MSI
boolean_t have_msi;
#endif
};
#endif /* _E1000_H_ */

15
drivers/net/e1000/e1000_main.c
View File

@ -312,6 +312,16 @@ e1000_up(struct e1000_adapter *adapter)
e1000_configure_rx(adapter);
e1000_alloc_rx_buffers(adapter);
#ifdef CONFIG_PCI_MSI
if(adapter->hw.mac_type > e1000_82547_rev_2) {
adapter->have_msi = TRUE;
if((err = pci_enable_msi(adapter->pdev))) {
DPRINTK(PROBE, ERR,
"Unable to allocate MSI interrupt Error: %d\n", err);
adapter->have_msi = FALSE;
}
}
#endif
if((err = request_irq(adapter->pdev->irq, &e1000_intr,
SA_SHIRQ | SA_SAMPLE_RANDOM,
netdev->name, netdev)))
@ -333,6 +343,11 @@ e1000_down(struct e1000_adapter *adapter)
e1000_irq_disable(adapter);
free_irq(adapter->pdev->irq, netdev);
#ifdef CONFIG_PCI_MSI
if(adapter->hw.mac_type > e1000_82547_rev_2 &&
adapter->have_msi == TRUE)
pci_disable_msi(adapter->pdev);
#endif
del_timer_sync(&adapter->tx_fifo_stall_timer);
del_timer_sync(&adapter->watchdog_timer);
del_timer_sync(&adapter->phy_info_timer);