From: Xiang Chen <chenxiang66@xxxxxxxxxxxxx>
Add device attribute experimental_iopoll_q_cnt to indicate how many
iopoll queues are used for v3 hw.
Signed-off-by: Xiang Chen <chenxiang66@xxxxxxxxxxxxx>
---
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index 1f6c026..8d0e2dd 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -2855,6 +2855,18 @@ static ssize_t intr_coal_count_v3_hw_store(struct device *dev,
}
static DEVICE_ATTR_RW(intr_coal_count_v3_hw);
+static ssize_t iopoll_q_cnt_v3_hw_show(struct device *dev,
+ struct device_attribute
+ *attr, char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct hisi_hba *hisi_hba = shost_priv(shost);
+
+ return scnprintf(buf, PAGE_SIZE, "%u\n",
+ hisi_hba->iopoll_q_cnt);
+}
+static DEVICE_ATTR_RO(iopoll_q_cnt_v3_hw);
+
static int slave_configure_v3_hw(struct scsi_device *sdev)
{
struct Scsi_Host *shost = dev_to_shost(&sdev->sdev_gendev);
@@ -2884,6 +2896,7 @@ static struct attribute *host_v3_hw_attrs[] = {
&dev_attr_intr_conv_v3_hw.attr,
&dev_attr_intr_coal_ticks_v3_hw.attr,
&dev_attr_intr_coal_count_v3_hw.attr,
+ &dev_attr_iopoll_q_cnt_v3_hw.attr,
NULL
};
--
2.8.1
