From: Andrew Vasquez <andrew.vasquez@xxxxxxxxxx>
Add sysfs node for displaying board thermal/temperature.
Signed-off-by: Andrew Vasquez <andrew.vasquez@xxxxxxxxxx>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@xxxxxxxxxx>
---
drivers/scsi/qla2xxx/qla_attr.c | 27 ++++++++++++++++
drivers/scsi/qla2xxx/qla_def.h | 3 +-
drivers/scsi/qla2xxx/qla_gbl.h | 2 +
drivers/scsi/qla2xxx/qla_init.c | 1 +
drivers/scsi/qla2xxx/qla_mbx.c | 65 +++++++++++++++++++++++++++++++++++++++
5 files changed, 97 insertions(+), 1 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index bc8194f..44578b5 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1309,6 +1309,31 @@ qla2x00_fabric_param_show(struct device *dev, struct device_attribute *attr,
}
static ssize_t
+qla2x00_thermal_temp_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+ int rval = QLA_FUNCTION_FAILED;
+ uint16_t temp, frac;
+
+ if (!vha->hw->flags.thermal_supported)
+ return snprintf(buf, PAGE_SIZE, "\n");
+
+ temp = frac = 0;
+ if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
+ test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
+ DEBUG2_3_11(printk(KERN_WARNING
+ "%s(%ld): isp reset in progress.\n",
+ __func__, vha->host_no));
+ else if (!vha->hw->flags.eeh_busy)
+ rval = qla2x00_get_thermal_temp(vha, &temp, &frac);
+ if (rval != QLA_SUCCESS)
+ temp = frac = 0;
+
+ return snprintf(buf, PAGE_SIZE, "%d.%02d\n", temp, frac);
+}
+
+static ssize_t
qla2x00_fw_state_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
@@ -1366,6 +1391,7 @@ static DEVICE_ATTR(vn_port_mac_address, S_IRUGO,
qla2x00_vn_port_mac_address_show, NULL);
static DEVICE_ATTR(fabric_param, S_IRUGO, qla2x00_fabric_param_show, NULL);
static DEVICE_ATTR(fw_state, S_IRUGO, qla2x00_fw_state_show, NULL);
+static DEVICE_ATTR(thermal_temp, S_IRUGO, qla2x00_thermal_temp_show, NULL);
struct device_attribute *qla2x00_host_attrs[] = {
&dev_attr_driver_version,
@@ -1394,6 +1420,7 @@ struct device_attribute *qla2x00_host_attrs[] = {
&dev_attr_fabric_param,
&dev_attr_fw_state,
&dev_attr_optrom_gold_fw_version,
+ &dev_attr_thermal_temp,
NULL,
};
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 6168628..ccfc8e7 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2426,7 +2426,8 @@ struct qla_hw_data {
uint32_t fcp_prio_enabled :1;
uint32_t fw_hung :1;
uint32_t quiesce_owner:1;
- /* 29 bits */
+ uint32_t thermal_supported:1;
+ /* 26 bits */
} flags;
/* This spinlock is used to protect "io transactions", you must
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index c228d24..39c4bdd 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -53,6 +53,8 @@ extern void qla2x00_update_fcport(scsi_qla_host_t *, fc_port_t *);
extern void qla2x00_alloc_fw_dump(scsi_qla_host_t *);
extern void qla2x00_try_to_stop_firmware(scsi_qla_host_t *);
+extern int qla2x00_get_thermal_temp(scsi_qla_host_t *, uint16_t *, uint16_t *);
+
extern void qla84xx_put_chip(struct scsi_qla_host *);
extern int qla2x00_async_login(struct scsi_qla_host *, fc_port_t *,
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index c8ca25a..d0a0dc9 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -498,6 +498,7 @@ qla2x00_initialize_adapter(scsi_qla_host_t *vha)
vha->flags.reset_active = 0;
ha->flags.pci_channel_io_perm_failure = 0;
ha->flags.eeh_busy = 0;
+ ha->flags.thermal_supported = 1;
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
atomic_set(&vha->loop_state, LOOP_DOWN);
vha->device_flags = DFLG_NO_CABLE;
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 04d6cfc..e473e9f 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -4160,6 +4160,71 @@ qla24xx_set_fcp_prio(scsi_qla_host_t *vha, uint16_t loop_id, uint16_t priority,
}
int
+qla2x00_get_thermal_temp(scsi_qla_host_t *vha, uint16_t *temp, uint16_t *frac)
+{
+ int rval;
+ mbx_cmd_t mc;
+ mbx_cmd_t *mcp = &mc;
+ struct qla_hw_data *ha = vha->hw;
+
+ DEBUG11(printk(KERN_INFO "%s(%ld): entered.\n", __func__, ha->host_no));
+
+ /* High bits. */
+ mcp->mb[0] = MBC_READ_SFP;
+ mcp->mb[1] = 0x98;
+ mcp->mb[2] = 0;
+ mcp->mb[3] = 0;
+ mcp->mb[6] = 0;
+ mcp->mb[7] = 0;
+ mcp->mb[8] = 1;
+ mcp->mb[9] = 0x01;
+ mcp->mb[10] = BIT_13|BIT_0;
+ mcp->out_mb = MBX_10|MBX_9|MBX_8|MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
+ mcp->in_mb = MBX_1|MBX_0;
+ mcp->tov = MBX_TOV_SECONDS;
+ mcp->flags = 0;
+ rval = qla2x00_mailbox_command(vha, mcp);
+ if (rval != QLA_SUCCESS) {
+ DEBUG2_3_11(printk(KERN_WARNING
+ "%s(%ld): failed=%x (%x).\n", __func__,
+ vha->host_no, rval, mcp->mb[0]));
+ ha->flags.thermal_supported = 0;
+ goto fail;
+ }
+ *temp = mcp->mb[1] & 0xFF;
+
+ /* Low bits. */
+ mcp->mb[0] = MBC_READ_SFP;
+ mcp->mb[1] = 0x98;
+ mcp->mb[2] = 0;
+ mcp->mb[3] = 0;
+ mcp->mb[6] = 0;
+ mcp->mb[7] = 0;
+ mcp->mb[8] = 1;
+ mcp->mb[9] = 0x10;
+ mcp->mb[10] = BIT_13|BIT_0;
+ mcp->out_mb = MBX_10|MBX_9|MBX_8|MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
+ mcp->in_mb = MBX_1|MBX_0;
+ mcp->tov = MBX_TOV_SECONDS;
+ mcp->flags = 0;
+ rval = qla2x00_mailbox_command(vha, mcp);
+ if (rval != QLA_SUCCESS) {
+ DEBUG2_3_11(printk(KERN_WARNING
+ "%s(%ld): failed=%x (%x).\n", __func__,
+ vha->host_no, rval, mcp->mb[0]));
+ ha->flags.thermal_supported = 0;
+ goto fail;
+ }
+ *frac = ((mcp->mb[1] & 0xFF) >> 6) * 25;
+
+ if (rval == QLA_SUCCESS)
+ DEBUG11(printk(KERN_INFO
+ "%s(%ld): done.\n", __func__, ha->host_no));
+fail:
+ return rval;
+}
+
+int
qla82xx_mbx_intr_enable(scsi_qla_host_t *vha)
{
int rval;
--
1.6.0.2
--
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