From a1b23c5a1d17d27d4d685dba03dc3c437693b5d0 Mon Sep 17 00:00:00 2001 From: Chad Dupuis Date: Wed, 26 Feb 2014 04:15:12 -0500 Subject: [PATCH] [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 Signed-off-by: Saurav Kashyap Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_attr.c | 35 +++++++++++++++++++++++++++++++++ drivers/scsi/qla2xxx/qla_def.h | 1 + drivers/scsi/qla2xxx/qla_gbl.h | 2 ++ drivers/scsi/qla2xxx/qla_nx.c | 17 ++++++++++++++++ drivers/scsi/qla2xxx/qla_nx2.c | 16 +++++++++++++++ drivers/scsi/qla2xxx/qla_os.c | 4 ++-- 6 files changed, 73 insertions(+), 2 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, }; diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 400ef02e1610..6a106136716c 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -3301,6 +3301,7 @@ struct qla_hw_data { 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 19a06620b0e5..dcd084a4e5c1 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -511,6 +511,8 @@ extern void qla2300_fw_dump(scsi_qla_host_t *, int); 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 26326f336c59..5511e24b1f11 100644 --- a/drivers/scsi/qla2xxx/qla_nx.c +++ b/drivers/scsi/qla2xxx/qla_nx.c @@ -4502,3 +4502,20 @@ qla82xx_beacon_off(struct scsi_qla_host *vha) 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 b7ed4784d929..86cf10815db0 100644 --- a/drivers/scsi/qla2xxx/qla_nx2.c +++ b/drivers/scsi/qla2xxx/qla_nx2.c @@ -3713,3 +3713,19 @@ qla8044_abort_isp(scsi_qla_host_t *vha) 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 c0c95c180188..7c36eb2dfae8 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -1975,7 +1975,7 @@ static struct isp_operations qla82xx_isp_ops = { .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 @@ static struct isp_operations qla8044_isp_ops = { .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,