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scsi: hisi_sas: Add device attribute experimental_iopoll_q_cnt for v3 hw

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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>
Link: https://lore.kernel.org/r/1678169355-76215-5-git-send-email-chenxiang66@hisilicon.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Xiang Chen 2023-03-07 14:09:15 +08:00 committed by Martin K. Petersen
parent b711ef5e17
commit 0c2fb17011
1 changed files with 13 additions and 0 deletions
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13
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
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@ -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
};