---

yaml
---
r: 59338
b: refs/heads/master
c: 3588423
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9ca48655667214be6ebd191628a3c4b5b529a87e
+refs/heads/master: 3588423fbab1cfaf839e67378897e232a054f317

trunk/drivers/infiniband/hw/ipath/ipath_driver.c

@@ -104,6 +104,9 @@ static int __devinit ipath_init_one(struct pci_dev *,
 #define PCI_DEVICE_ID_INFINIPATH_HT 0xd
 #define PCI_DEVICE_ID_INFINIPATH_PE800 0x10
 
+/* Number of seconds before our card status check...  */
+#define STATUS_TIMEOUT 60
+
 static const struct pci_device_id ipath_pci_tbl[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_PATHSCALE, PCI_DEVICE_ID_INFINIPATH_HT) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_PATHSCALE, PCI_DEVICE_ID_INFINIPATH_PE800) },
@@ -119,6 +122,18 @@ static struct pci_driver ipath_driver = {
 	.id_table = ipath_pci_tbl,
 };
 
+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)
@@ -187,6 +202,8 @@ 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:
@@ -511,6 +528,9 @@ 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:
@@ -638,6 +658,9 @@ 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)
 		ipath_unregister_ib_device(dd->verbs_dev);
 

trunk/drivers/infiniband/hw/ipath/ipath_intr.c

@@ -1009,6 +1009,9 @@ irqreturn_t ipath_intr(int irq, void *data)
 
 	ipath_stats.sps_ints++;
 
+	if (dd->ipath_int_counter != (u32) -1)
+		dd->ipath_int_counter++;
+
 	if (!(dd->ipath_flags & IPATH_PRESENT)) {
 		/*
 		 * This return value is not great, but we do not want the

trunk/drivers/infiniband/hw/ipath/ipath_kernel.h

@@ -297,6 +297,8 @@ struct ipath_devdata {
 	u32 ipath_lastport_piobuf;
 	/* is a stats timer active */
 	u32 ipath_stats_timer_active;
+	/* number of interrupts for this device -- saturates... */
+	u32 ipath_int_counter;
 	/* dwords sent read from counter */
 	u32 ipath_lastsword;
 	/* dwords received read from counter */
@@ -571,6 +573,9 @@ struct ipath_devdata {
 	u32 ipath_overrun_thresh_errs;
 	u32 ipath_lli_errs;
 
+	/* status check work */
+	struct delayed_work status_work;
+
 	/*
 	 * Not all devices managed by a driver instance are the same
 	 * type, so these fields must be per-device.