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IB/ipath: Fix check for no interrupts to reliably fallback to INTx

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Newer HCAs support MSI interrupts and also INTx interrupts.  Fix the
code so that INTx can be reliably enabled if MSI interrupts are not
working.

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Dave Olson
2008-04-16 21:09:30 -07:00
committed by Roland Dreier
parent 1d7c2e529f
commit 9b436eb4f8
3 changed files with 42 additions and 22 deletions
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23
drivers/infiniband/hw/ipath/ipath_driver.c
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@@ -138,19 +138,6 @@ static struct pci_driver ipath_driver = {
},
};
static void ipath_check_status(struct work_struct *work)
{
struct ipath_devdata *dd = container_of(work, struct ipath_devdata,
status_work.work);
/*
* If we don't have any interrupts, let the user know and
* don't bother checking again.
*/
if (dd->ipath_int_counter == 0)
dev_err(&dd->pcidev->dev, "No interrupts detected.\n");
}
static inline void read_bars(struct ipath_devdata *dd, struct pci_dev *dev,
u32 *bar0, u32 *bar1)
{
@@ -218,8 +205,6 @@ static struct ipath_devdata *ipath_alloc_devdata(struct pci_dev *pdev)
dd->pcidev = pdev;
pci_set_drvdata(pdev, dd);
INIT_DELAYED_WORK(&dd->status_work, ipath_check_status);
list_add(&dd->ipath_list, &ipath_dev_list);
bail_unlock:
@@ -620,9 +605,6 @@ static int __devinit ipath_init_one(struct pci_dev *pdev,
ipath_diag_add(dd);
ipath_register_ib_device(dd);
/* Check that card status in STATUS_TIMEOUT seconds. */
schedule_delayed_work(&dd->status_work, HZ * STATUS_TIMEOUT);
goto bail;
bail_irqsetup:
@@ -753,7 +735,6 @@ static void __devexit ipath_remove_one(struct pci_dev *pdev)
*/
ipath_shutdown_device(dd);
cancel_delayed_work(&dd->status_work);
flush_scheduled_work();
if (dd->verbs_dev)
@@ -2195,6 +2176,10 @@ void ipath_shutdown_device(struct ipath_devdata *dd)
del_timer_sync(&dd->ipath_stats_timer);
dd->ipath_stats_timer_active = 0;
}
if (dd->ipath_intrchk_timer.data) {
del_timer_sync(&dd->ipath_intrchk_timer);
dd->ipath_intrchk_timer.data = 0;
}
/*
* clear all interrupts and errors, so that the next time the driver