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| author | Chad Dupuis <chad.dupuis@qlogic.com> | 2014-02-26 10:15:12 +0100 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2014-03-15 18:18:51 +0100 |
| commit | a1b23c5a1d17d27d4d685dba03dc3c437693b5d0 (patch) | |
| tree | a61ea108b7f7361a0c7f91230e2be189e644bfdb /drivers/scsi/qla2xxx/qla_attr.c | |
| parent | [SCSI] qla2xxx: Simplify the ISPFX00 interrupt handler code for ISPFX00. (diff) | |
| download | linux-a1b23c5a1d17d27d4d685dba03dc3c437693b5d0.tar.xz linux-a1b23c5a1d17d27d4d685dba03dc3c437693b5d0.zip | |
[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>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_attr.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_attr.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index f2d42b961e92..aa81829aeb3a 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -1503,6 +1503,37 @@ qla2x00_fw_dump_size_show(struct device *dev, struct device_attribute *attr, 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(thermal_temp, S_IRUGO, qla2x00_thermal_temp_show, NULL); 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 @@ struct device_attribute *qla2x00_host_attrs[] = { &dev_attr_diag_requests, &dev_attr_diag_megabytes, &dev_attr_fw_dump_size, + &dev_attr_allow_cna_fw_dump, NULL, }; |