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atl1e: drop pci-msi support because of packet corruption 

Usage of pci-msi results in corrupted dma packet transfers to the host.

Reported-by: rebelyouth <rebelyouth.hacklab@gmail.com>
Cc: Huang, Xiong <xiong@qca.qualcomm.com>
Tested-by: Christian Sünkenberg <christian.suenkenberg@student.kit.edu>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hannes Frederic Sowa 2013-03-28 18:10:50 +00:00 committed by David S. Miller
parent cd68ddd4c2
commit 188ab1b105
2 changed files with 2 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/ethernet/atheros/atl1e/atl1e.h
View File

@ -438,7 +438,6 @@ struct atl1e_adapter {
struct atl1e_hw hw;
struct atl1e_hw_stats hw_stats;
bool have_msi;
u32 wol;
u16 link_speed;
u16 link_duplex;

19
drivers/net/ethernet/atheros/atl1e/atl1e_main.c
View File

@ -1849,34 +1849,19 @@ static void atl1e_free_irq(struct atl1e_adapter *adapter)
struct net_device *netdev = adapter->netdev;
free_irq(adapter->pdev->irq, netdev);
if (adapter->have_msi)
pci_disable_msi(adapter->pdev);
}
static int atl1e_request_irq(struct atl1e_adapter *adapter)
{
struct pci_dev *pdev = adapter->pdev;
struct net_device *netdev = adapter->netdev;
int flags = 0;
int err = 0;
adapter->have_msi = true;
err = pci_enable_msi(pdev);
if (err) {
netdev_dbg(netdev,
"Unable to allocate MSI interrupt Error: %d\n", err);
adapter->have_msi = false;
}
if (!adapter->have_msi)
flags |= IRQF_SHARED;
err = request_irq(pdev->irq, atl1e_intr, flags, netdev->name, netdev);
err = request_irq(pdev->irq, atl1e_intr, IRQF_SHARED, netdev->name,
netdev);
if (err) {
netdev_dbg(adapter->netdev,
"Unable to allocate interrupt Error: %d\n", err);
if (adapter->have_msi)
pci_disable_msi(pdev);
return err;
}
netdev_dbg(netdev, "atl1e_request_irq OK\n");