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authorLuo Jiaxing <luojiaxing@huawei.com>2019-01-25 22:22:29 +0800
committerMartin K. Petersen <martin.petersen@oracle.com>2019-01-29 01:41:19 -0500
commit5979f33b982dca807ea802b512480bc62f81396a (patch)
tree204c4538a3fd44aff8678bc2b51ebdbc36e29c8a /drivers/scsi/hisi_sas
parent5b0eeac4bed4b1a261acf3cd893f929e68814a0d (diff)
scsi: hisi_sas: Add debugfs ITCT file and add file operations
This patch creates debugfs file for ITCT and adds file operations. Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/hisi_sas')
-rw-r--r--drivers/scsi/hisi_sas/hisi_sas_main.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 54e4e77159f5..a8fda1c9af9e 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -2769,6 +2769,36 @@ static const struct file_operations hisi_sas_debugfs_iost_fops = {
.owner = THIS_MODULE,
};
+static int hisi_sas_debugfs_itct_show(struct seq_file *s, void *p)
+{
+ int i, ret;
+ struct hisi_hba *hisi_hba = s->private;
+ struct hisi_sas_itct *debugfs_itct = hisi_hba->debugfs_itct;
+ __le64 *itct = &debugfs_itct->qw0;
+
+ for (i = 0; i < HISI_SAS_MAX_ITCT_ENTRIES; i++, debugfs_itct++) {
+ ret = hisi_sas_show_row_64(s, i, sizeof(*debugfs_itct),
+ itct);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int hisi_sas_debugfs_itct_open(struct inode *inode, struct file *filp)
+{
+ return single_open(filp, hisi_sas_debugfs_itct_show, inode->i_private);
+}
+
+static const struct file_operations hisi_sas_debugfs_itct_fops = {
+ .open = hisi_sas_debugfs_itct_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
{
struct dentry *dump_dentry;
@@ -2815,6 +2845,9 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
debugfs_create_file("iost", 0400, dump_dentry, hisi_hba,
&hisi_sas_debugfs_iost_fops);
+ debugfs_create_file("itct", 0400, dump_dentry, hisi_hba,
+ &hisi_sas_debugfs_itct_fops);
+
return;
}