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ixgbevf: Synch out of tree and in tree mailbox interrupt handlers 

The out of tree driver and the in kernel driver should use the same
interrupt handling logic for mailbox interrupts.  The difference in
the handlers was causing dissimilar behavior between the two drivers
complicating debug and trouble shooting.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Greg Rose 2013-01-04 07:37:20 +00:00 committed by Jeff Kirsher
parent ec718254cb
commit 1e72bfc39d
1 changed files with 25 additions and 2 deletions
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27
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
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@ -750,12 +750,35 @@ static void ixgbevf_set_itr(struct ixgbevf_q_vector *q_vector)
static irqreturn_t ixgbevf_msix_other(int irq, void *data)
{
struct ixgbevf_adapter *adapter = data;
struct pci_dev *pdev = adapter->pdev;
struct ixgbe_hw *hw = &adapter->hw;
u32 msg;
bool got_ack = false;
hw->mac.get_link_status = 1;
if (!hw->mbx.ops.check_for_ack(hw))
got_ack = true;
if (!test_bit(__IXGBEVF_DOWN, &adapter->state))
mod_timer(&adapter->watchdog_timer, jiffies);
if (!hw->mbx.ops.check_for_msg(hw)) {
hw->mbx.ops.read(hw, &msg, 1);
if ((msg & IXGBE_MBVFICR_VFREQ_MASK) == IXGBE_PF_CONTROL_MSG)
mod_timer(&adapter->watchdog_timer,
round_jiffies(jiffies + 1));
if (msg & IXGBE_VT_MSGTYPE_NACK)
dev_info(&pdev->dev,
"Last Request of type %2.2x to PF Nacked\n",
msg & 0xFF);
hw->mbx.v2p_mailbox |= IXGBE_VFMAILBOX_PFSTS;
}
/* checking for the ack clears the PFACK bit. Place
* it back in the v2p_mailbox cache so that anyone
* polling for an ack will not miss it
*/
if (got_ack)
hw->mbx.v2p_mailbox |= IXGBE_VFMAILBOX_PFACK;
IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, adapter->eims_other);