This is a note to let you know that I've just added the patch titled
atl1e: drop pci-msi support because of packet corruption
to the 3.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
atl1e-drop-pci-msi-support-because-of-packet-corruption.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 780e8f21d300ad098fd365d1ee4cd7d39da8d40d Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <[email protected]>
Date: Thu, 28 Mar 2013 18:10:50 +0000
Subject: atl1e: drop pci-msi support because of packet corruption
From: Mugunthan V N <[email protected]>
[ Upstream commit 188ab1b105c96656f6bcfb49d0d8bb1b1936b632 ]
Usage of pci-msi results in corrupted dma packet transfers to the host.
Reported-by: rebelyouth <[email protected]>
Cc: Huang, Xiong <[email protected]>
Tested-by: Christian Sünkenberg <[email protected]>
Signed-off-by: Hannes Frederic Sowa <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/atl1e/atl1e.h | 1 -
drivers/net/atl1e/atl1e_main.c | 22 ++--------------------
2 files changed, 2 insertions(+), 21 deletions(-)
--- a/drivers/net/atl1e/atl1e.h
+++ b/drivers/net/atl1e/atl1e.h
@@ -439,7 +439,6 @@ struct atl1e_adapter {
struct atl1e_hw hw;
struct atl1e_hw_stats hw_stats;
- bool have_msi;
u32 wol;
u16 link_speed;
u16 link_duplex;
--- a/drivers/net/atl1e/atl1e_main.c
+++ b/drivers/net/atl1e/atl1e_main.c
@@ -1848,37 +1848,19 @@ static void atl1e_free_irq(struct atl1e_
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(adapter->pdev);
- if (err) {
- netdev_dbg(adapter->netdev,
- "Unable to allocate MSI interrupt Error: %d\n", err);
- adapter->have_msi = false;
- } else
- netdev->irq = pdev->irq;
-
-
- if (!adapter->have_msi)
- flags |= IRQF_SHARED;
- err = request_irq(adapter->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(adapter->pdev);
return err;
}
netdev_dbg(adapter->netdev, "atl1e_request_irq OK\n");
Patches currently in stable-queue which might be from
[email protected] are
queue-3.0/atl1e-drop-pci-msi-support-because-of-packet-corruption.patch
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