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Subject[PATCH 22 of 23] IB/ipath - print warning if LID not acquired within one minute
Date
From
Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>

diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c
--- a/drivers/infiniband/hw/ipath/ipath_driver.c Fri Aug 25 11:19:45 2006 -0700
+++ b/drivers/infiniband/hw/ipath/ipath_driver.c Fri Aug 25 11:19:46 2006 -0700
@@ -114,6 +114,13 @@ static int __devinit ipath_init_one(stru
#define PCI_DEVICE_ID_INFINIPATH_HT 0xd
#define PCI_DEVICE_ID_INFINIPATH_PE800 0x10

+/*
+ * Number of seconds before we complain about not getting a LID
+ * assignment.
+ */
+
+#define LID_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) },
@@ -129,6 +136,29 @@ static struct pci_driver ipath_driver =
.id_table = ipath_pci_tbl,
};

+
+static void check_link_status(void *data)
+{
+ struct ipath_devdata *dd = data;
+
+ /*
+ * If we're in the NOCABLE state, try again in another minute.
+ */
+
+ if (dd->ipath_flags & IPATH_STATUS_IB_NOCABLE) {
+ schedule_delayed_work(&dd->link_task, HZ * LID_TIMEOUT);
+ return;
+ }
+
+ /*
+ * If we don't have a LID, let the user know and don't bother
+ * checking again.
+ */
+
+ if (dd->ipath_lid == 0)
+ dev_info(&dd->pcidev->dev,
+ "We don't have a LID yet (no subnet manager?)");
+}

static inline void read_bars(struct ipath_devdata *dd, struct pci_dev *dev,
u32 *bar0, u32 *bar1)
@@ -196,6 +226,8 @@ static struct ipath_devdata *ipath_alloc

dd->pcidev = pdev;
pci_set_drvdata(pdev, dd);
+
+ INIT_WORK(&dd->link_task, check_link_status, dd);

list_add(&dd->ipath_list, &ipath_dev_list);

@@ -509,6 +541,9 @@ static int __devinit ipath_init_one(stru
ipath_diag_add(dd);
ipath_register_ib_device(dd);

+ /* Check that we have a LID in LID_TIMEOUT seconds. */
+ schedule_delayed_work(&dd->link_task, HZ * LID_TIMEOUT);
+
goto bail;

bail_iounmap:
@@ -536,6 +571,9 @@ static void __devexit ipath_remove_one(s
return;

dd = pci_get_drvdata(pdev);
+
+ cancel_delayed_work(&dd->link_task);
+
ipath_unregister_ib_device(dd->verbs_dev);
ipath_diag_remove(dd);
ipath_user_remove(dd);
@@ -1644,6 +1682,8 @@ int ipath_set_lid(struct ipath_devdata *
dd->ipath_lid = arg;
dd->ipath_lmc = lmc;

+ dev_info(&dd->pcidev->dev, "We got a lid: %u\n", arg);
+
return 0;
}

diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h
--- a/drivers/infiniband/hw/ipath/ipath_kernel.h Fri Aug 25 11:19:45 2006 -0700
+++ b/drivers/infiniband/hw/ipath/ipath_kernel.h Fri Aug 25 11:19:46 2006 -0700
@@ -508,6 +508,9 @@ struct ipath_devdata {
u32 ipath_lli_counter;
/* local link integrity errors */
u32 ipath_lli_errors;
+
+ /* Link status check work */
+ struct work_struct link_task;
};

extern struct list_head ipath_dev_list;
-
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