Creates a sysfs entry for each MSI-X vector containing the IRQ value. This
patch applies to the mthca driver.
Signed-off-by: Vincent Rizza <[EMAIL PROTECTED]>
Signed-off-by: Brett Grandbois <[EMAIL PROTECTED]>
Signed-off-by: Greg Banks <[EMAIL PROTECTED]>
Signed-off-by: Max Matveev <[EMAIL PROTECTED]>
Signed-off-by: Ken Sandars <[EMAIL PROTECTED]>
---
drivers/infiniband/hw/mthca/mthca_provider.c | 62 +++++++++++++++++++++++---
1 files changed, 55 insertions(+), 7 deletions(-)
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c
b/drivers/infiniband/hw/mthca/mthca_provider.c
index 87ad889..70fc686 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -1232,10 +1232,40 @@ static ssize_t show_board(struct device *device, struct
device_attribute *attr,
return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id);
}
-static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
-static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
-static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
-static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
+static ssize_t show_msix_async_irq(struct device *device,
+ struct device_attribute *attr, char *buf)
+{
+ struct mthca_dev *dev =
+ container_of(device, struct mthca_dev, ib_dev.dev);
+ return sprintf(buf, "%u\n",
+ dev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector);
+}
+
+static ssize_t show_msix_cmd_irq(struct device *device,
+ struct device_attribute *attr, char *buf)
+{
+ struct mthca_dev *dev =
+ container_of(device, struct mthca_dev, ib_dev.dev);
+ return sprintf(buf, "%u\n",
+ dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector);
+}
+
+static ssize_t show_msix_comp_irq(struct device *device,
+ struct device_attribute *attr, char *buf)
+{
+ struct mthca_dev *dev =
+ container_of(device, struct mthca_dev, ib_dev.dev);
+ return sprintf(buf, "%u\n",
+ dev->eq_table.eq[MTHCA_EQ_COMP].msi_x_vector);
+}
+
+static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
+static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
+static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
+static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
+static DEVICE_ATTR(msix_async_irq, S_IRUGO, show_msix_async_irq, NULL);
+static DEVICE_ATTR(msix_cmd_irq, S_IRUGO, show_msix_cmd_irq, NULL);
+static DEVICE_ATTR(msix_comp_irq, S_IRUGO, show_msix_comp_irq, NULL);
static struct device_attribute *mthca_dev_attributes[] = {
&dev_attr_hw_rev,
@@ -1244,6 +1274,12 @@ static struct device_attribute *mthca_dev_attributes[] =
{
&dev_attr_board_id
};
+static struct device_attribute *mthca_msix_attributes[] = {
+ &dev_attr_msix_async_irq,
+ &dev_attr_msix_cmd_irq,
+ &dev_attr_msix_comp_irq
+};
+
static int mthca_init_node_data(struct mthca_dev *dev)
{
struct ib_smp *in_mad = NULL;
@@ -1406,15 +1442,27 @@ int mthca_register_device(struct mthca_dev *dev)
for (i = 0; i < ARRAY_SIZE(mthca_dev_attributes); ++i) {
ret = device_create_file(&dev->ib_dev.dev,
mthca_dev_attributes[i]);
- if (ret) {
- ib_unregister_device(&dev->ib_dev);
- return ret;
+ if (ret)
+ goto err_reg;
+ }
+
+ /* Only create msix entries if msix is enabled */
+ if (dev->pdev->msix_enabled) {
+ for (i = 0; i < ARRAY_SIZE(mthca_msix_attributes); ++i) {
+ ret = device_create_file(&dev->ib_dev.dev,
+ mthca_msix_attributes[i]);
+ if (ret)
+ goto err_reg;
}
}
mthca_start_catas_poll(dev);
return 0;
+
+err_reg:
+ ib_unregister_device(&dev->ib_dev);
+ return ret;
}
void mthca_unregister_device(struct mthca_dev *dev)
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