iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

IB/mthca: Distinguish multiple devices in /proc/interrupts

Browse Source 
When the mthca driver uses the same name for interrupts for every
device in the system.  This can make it very confusing trying to work
out exactly which device MSI-X interrupts are for.  Change the driver
to add the PCI name of the device to the interrupt name.

Signed-off-by: Arputham Benjamin <abenjamin@sgi.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Arputham Benjamin 2009-09-05 20:36:15 -07:00 committed by Roland Dreier
parent ffe063f32b
commit d94a868901
2 changed files with 13 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/infiniband/hw/mthca/mthca_eq.c
View File

@ -829,27 +829,34 @@ int mthca_init_eq_table(struct mthca_dev *dev)
if (dev->mthca_flags & MTHCA_FLAG_MSI_X) {
static const char *eq_name[] = {
[MTHCA_EQ_COMP] = DRV_NAME " (comp)",
[MTHCA_EQ_ASYNC] = DRV_NAME " (async)",
[MTHCA_EQ_CMD] = DRV_NAME " (cmd)"
[MTHCA_EQ_COMP] = DRV_NAME "-comp",
[MTHCA_EQ_ASYNC] = DRV_NAME "-async",
[MTHCA_EQ_CMD] = DRV_NAME "-cmd"
};
for (i = 0; i < MTHCA_NUM_EQ; ++i) {
snprintf(dev->eq_table.eq[i].irq_name,
IB_DEVICE_NAME_MAX,
"%s@pci:%s", eq_name[i],
pci_name(dev->pdev));
err = request_irq(dev->eq_table.eq[i].msi_x_vector,
mthca_is_memfree(dev) ?
mthca_arbel_msi_x_interrupt :
mthca_tavor_msi_x_interrupt,
0, eq_name[i], dev->eq_table.eq + i);
0, dev->eq_table.eq[i].irq_name,
dev->eq_table.eq + i);
if (err)
goto err_out_cmd;
dev->eq_table.eq[i].have_irq = 1;
}
} else {
snprintf(dev->eq_table.eq[0].irq_name, IB_DEVICE_NAME_MAX,
DRV_NAME "@pci:%s", pci_name(dev->pdev));
err = request_irq(dev->pdev->irq,
mthca_is_memfree(dev) ?
mthca_arbel_interrupt :
mthca_tavor_interrupt,
IRQF_SHARED, DRV_NAME, dev);
IRQF_SHARED, dev->eq_table.eq[0].irq_name, dev);
if (err)
goto err_out_cmd;
dev->eq_table.have_irq = 1;

1
drivers/infiniband/hw/mthca/mthca_provider.h
View File

@ -113,6 +113,7 @@ struct mthca_eq {
int nent;
struct mthca_buf_list *page_list;
struct mthca_mr mr;
char irq_name[IB_DEVICE_NAME_MAX];
};
struct mthca_av;