Add support for changing the default debug dump level.
Reviewed-by: Saravanan Vajravel <saravanan.vajravel@xxxxxxxxxxxx>
Signed-off-by: Selvin Xavier <selvin.xavier@xxxxxxxxxxxx>
---
drivers/infiniband/hw/bnxt_re/bnxt_re.h | 2 ++
drivers/infiniband/hw/bnxt_re/debugfs.c | 49 +++++++++++++++++++++++++++++++++
2 files changed, 51 insertions(+)
diff --git a/drivers/infiniband/hw/bnxt_re/bnxt_re.h b/drivers/infiniband/hw/bnxt_re/bnxt_re.h
index 45601635..45d62f6 100644
--- a/drivers/infiniband/hw/bnxt_re/bnxt_re.h
+++ b/drivers/infiniband/hw/bnxt_re/bnxt_re.h
@@ -304,6 +304,8 @@ struct bnxt_re_dev {
struct workqueue_struct *dcb_wq;
/* Head to track all QP dump */
struct bnxt_re_qdump_head qdump_head;
+ struct dentry *tunables;
+ struct dentry *snapdump_dbg;
u8 snapdump_dbg_lvl;
struct dentry *cc_config;
struct bnxt_re_dbg_cc_config_params *cc_config_params;
diff --git a/drivers/infiniband/hw/bnxt_re/debugfs.c b/drivers/infiniband/hw/bnxt_re/debugfs.c
index af91d16..e3fba53 100644
--- a/drivers/infiniband/hw/bnxt_re/debugfs.c
+++ b/drivers/infiniband/hw/bnxt_re/debugfs.c
@@ -306,6 +306,52 @@ static const struct file_operations bnxt_re_cc_config_ops = {
.write = bnxt_re_cc_config_set,
};
+static ssize_t bnxt_re_snapdump_dbg_lvl_set(struct file *filp, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct bnxt_re_dev *rdev = filp->private_data;
+ char buf[16];
+ u32 val;
+
+ if (count >= sizeof(buf))
+ return -EINVAL;
+
+ if (copy_from_user(buf, buffer, count))
+ return -EFAULT;
+
+ buf[count] = '\0';
+ if (kstrtou32(buf, 0, &val))
+ return -EINVAL;
+
+ if (val > BNXT_RE_SNAPDUMP_ALL)
+ return -EINVAL;
+
+ rdev->snapdump_dbg_lvl = val;
+
+ return count;
+}
+
+static ssize_t bnxt_re_snapdump_dbg_lvl_get(struct file *filp, char __user *buffer,
+ size_t usr_buf_len, loff_t *ppos)
+{
+ struct bnxt_re_dev *rdev = filp->private_data;
+ char buf[16];
+ int rc;
+
+ rc = snprintf(buf, sizeof(buf), "%d\n", rdev->snapdump_dbg_lvl);
+ if (rc < 0)
+ return rc;
+
+ return simple_read_from_buffer(buffer, usr_buf_len, ppos, (u8 *)(buf), rc);
+}
+
+static const struct file_operations bnxt_re_snapdump_dbg_lvl = {
+ .owner = THIS_MODULE,
+ .open = simple_open,
+ .read = bnxt_re_snapdump_dbg_lvl_get,
+ .write = bnxt_re_snapdump_dbg_lvl_set,
+};
+
void bnxt_re_debugfs_add_pdev(struct bnxt_re_dev *rdev)
{
struct pci_dev *pdev = rdev->en_dev->pdev;
@@ -329,6 +375,9 @@ void bnxt_re_debugfs_add_pdev(struct bnxt_re_dev *rdev)
rdev->cc_config, tmp_params,
&bnxt_re_cc_config_ops);
}
+ rdev->tunables = debugfs_create_dir("tunables", rdev->dbg_root);
+ rdev->snapdump_dbg = debugfs_create_file("snapdump_dbg_lvl", 0400, rdev->tunables, rdev,
+ &bnxt_re_snapdump_dbg_lvl);
}
void bnxt_re_debugfs_rem_pdev(struct bnxt_re_dev *rdev)
--
2.5.5
