diff mbox series

[4/4] scsi: hisi_sas: Add device attribute experimental_iopoll_q_cnt for v3 hw

Message ID 1678169355-76215-5-git-send-email-chenxiang66@hisilicon.com
State New
Headers show
Series Add poll support for hisi_sas v3 hw | expand

Commit Message

chenxiang March 7, 2023, 6:09 a.m. UTC 
From: Xiang Chen <chenxiang66@hisilicon.com>

Add device attribute experimental_iopoll_q_cnt to indicate how many
iopoll queues are used for v3 hw.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
---
 drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)
diff mbox series

Patch

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
 };