[SCSI] qla2xxx: Read capture firmware dump on mailbox timeout for ISP8044 and ISP82XX.
Allow for the capture of a firmware dump but have a sysfs node
(allow_cna_fw_dump) to allow the feature to be enabled/disabled dynamically.
The default is off.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index f2d42b96..aa81829 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1503,6 +1503,37 @@
return scnprintf(buf, PAGE_SIZE, "%d\n", size);
}
+static ssize_t
+qla2x00_allow_cna_fw_dump_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+
+ if (!IS_P3P_TYPE(vha->hw))
+ return scnprintf(buf, PAGE_SIZE, "\n");
+ else
+ return scnprintf(buf, PAGE_SIZE, "%s\n",
+ vha->hw->allow_cna_fw_dump ? "true" : "false");
+}
+
+static ssize_t
+qla2x00_allow_cna_fw_dump_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+ int val = 0;
+
+ if (!IS_P3P_TYPE(vha->hw))
+ return -EINVAL;
+
+ if (sscanf(buf, "%d", &val) != 1)
+ return -EINVAL;
+
+ vha->hw->allow_cna_fw_dump = val != 0;
+
+ return strlen(buf);
+}
+
static DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_drvr_version_show, NULL);
static DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL);
static DEVICE_ATTR(serial_num, S_IRUGO, qla2x00_serial_num_show, NULL);
@@ -1544,6 +1575,9 @@
static DEVICE_ATTR(diag_requests, S_IRUGO, qla2x00_diag_requests_show, NULL);
static DEVICE_ATTR(diag_megabytes, S_IRUGO, qla2x00_diag_megabytes_show, NULL);
static DEVICE_ATTR(fw_dump_size, S_IRUGO, qla2x00_fw_dump_size_show, NULL);
+static DEVICE_ATTR(allow_cna_fw_dump, S_IRUGO | S_IWUSR,
+ qla2x00_allow_cna_fw_dump_show,
+ qla2x00_allow_cna_fw_dump_store);
struct device_attribute *qla2x00_host_attrs[] = {
&dev_attr_driver_version,
@@ -1576,6 +1610,7 @@
&dev_attr_diag_requests,
&dev_attr_diag_megabytes,
&dev_attr_fw_dump_size,
+ &dev_attr_allow_cna_fw_dump,
NULL,
};
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 400ef02..6a10613 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -3301,6 +3301,7 @@
struct mr_data_fx00 mr;
struct qlt_hw_data tgt;
+ int allow_cna_fw_dump;
};
/*
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index 19a0662..dcd084a 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -511,6 +511,8 @@
extern void qla24xx_fw_dump(scsi_qla_host_t *, int);
extern void qla25xx_fw_dump(scsi_qla_host_t *, int);
extern void qla81xx_fw_dump(scsi_qla_host_t *, int);
+extern void qla82xx_fw_dump(scsi_qla_host_t *, int);
+extern void qla8044_fw_dump(scsi_qla_host_t *, int);
extern void qla27xx_fwdump(scsi_qla_host_t *, int);
extern ulong qla27xx_fwdt_calculate_dump_size(struct scsi_qla_host *);
diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c
index 26326f3..5511e24 100644
--- a/drivers/scsi/qla2xxx/qla_nx.c
+++ b/drivers/scsi/qla2xxx/qla_nx.c
@@ -4502,3 +4502,20 @@
qla82xx_idc_unlock(ha);
return rval;
}
+
+void
+qla82xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked)
+{
+ struct qla_hw_data *ha = vha->hw;
+
+ if (!ha->allow_cna_fw_dump)
+ return;
+
+ scsi_block_requests(vha->host);
+ ha->flags.isp82xx_no_md_cap = 1;
+ qla82xx_idc_lock(ha);
+ qla82xx_set_reset_owner(vha);
+ qla82xx_idc_unlock(ha);
+ qla2x00_wait_for_chip_reset(vha);
+ scsi_unblock_requests(vha->host);
+}
diff --git a/drivers/scsi/qla2xxx/qla_nx2.c b/drivers/scsi/qla2xxx/qla_nx2.c
index b7ed478..86cf108 100644
--- a/drivers/scsi/qla2xxx/qla_nx2.c
+++ b/drivers/scsi/qla2xxx/qla_nx2.c
@@ -3713,3 +3713,19 @@
return rval;
}
+void
+qla8044_fw_dump(scsi_qla_host_t *vha, int hardware_locked)
+{
+ struct qla_hw_data *ha = vha->hw;
+
+ if (!ha->allow_cna_fw_dump)
+ return;
+
+ scsi_block_requests(vha->host);
+ ha->flags.isp82xx_no_md_cap = 1;
+ qla8044_idc_lock(ha);
+ qla82xx_set_reset_owner(vha);
+ qla8044_idc_unlock(ha);
+ qla2x00_wait_for_chip_reset(vha);
+ scsi_unblock_requests(vha->host);
+}
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index c0c95c1..7c36eb2 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1975,7 +1975,7 @@
.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
.read_nvram = qla24xx_read_nvram_data,
.write_nvram = qla24xx_write_nvram_data,
- .fw_dump = qla24xx_fw_dump,
+ .fw_dump = qla82xx_fw_dump,
.beacon_on = qla82xx_beacon_on,
.beacon_off = qla82xx_beacon_off,
.beacon_blink = NULL,
@@ -2013,7 +2013,7 @@
.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
.read_nvram = NULL,
.write_nvram = NULL,
- .fw_dump = qla24xx_fw_dump,
+ .fw_dump = qla8044_fw_dump,
.beacon_on = qla82xx_beacon_on,
.beacon_off = qla82xx_beacon_off,
.beacon_blink = NULL,