From 92d4408e34667f521cda7192fc8dda3da25d45bc Mon Sep 17 00:00:00 2001 From: Sawan Chandak Date: Wed, 23 Aug 2017 15:05:16 -0700 Subject: scsi: qla2xxx: Add support for minimum link speed Signed-off-by: Sawan Chandak Signed-off-by: Joe Carnuccio Signed-off-by: Himanshu Madhani Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_attr.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) (limited to 'drivers/scsi/qla2xxx/qla_attr.c') diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index 9d28622..75c4b31 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -1481,6 +1481,38 @@ qla2x00_pep_version_show(struct device *dev, struct device_attribute *attr, ha->pep_version[0], ha->pep_version[1], ha->pep_version[2]); } +static ssize_t +qla2x00_min_link_speed_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); + struct qla_hw_data *ha = vha->hw; + + if (!IS_QLA27XX(ha)) + return scnprintf(buf, PAGE_SIZE, "\n"); + + return scnprintf(buf, PAGE_SIZE, "%s\n", + ha->min_link_speed == 5 ? "32Gps" : + ha->min_link_speed == 4 ? "16Gps" : + ha->min_link_speed == 3 ? "8Gps" : + ha->min_link_speed == 2 ? "4Gps" : + ha->min_link_speed != 0 ? "unknown" : ""); +} + +static ssize_t +qla2x00_max_speed_sup_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); + struct qla_hw_data *ha = vha->hw; + + if (!IS_QLA27XX(ha)) + return scnprintf(buf, PAGE_SIZE, "\n"); + + return scnprintf(buf, PAGE_SIZE, "%s\n", + ha->max_speed_sup ? "32Gps" : "16Gps"); +} + 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); @@ -1526,6 +1558,8 @@ static DEVICE_ATTR(allow_cna_fw_dump, S_IRUGO | S_IWUSR, qla2x00_allow_cna_fw_dump_show, qla2x00_allow_cna_fw_dump_store); static DEVICE_ATTR(pep_version, S_IRUGO, qla2x00_pep_version_show, NULL); +static DEVICE_ATTR(min_link_speed, S_IRUGO, qla2x00_min_link_speed_show, NULL); +static DEVICE_ATTR(max_speed_sup, S_IRUGO, qla2x00_max_speed_sup_show, NULL); struct device_attribute *qla2x00_host_attrs[] = { &dev_attr_driver_version, @@ -1560,6 +1594,8 @@ struct device_attribute *qla2x00_host_attrs[] = { &dev_attr_fw_dump_size, &dev_attr_allow_cna_fw_dump, &dev_attr_pep_version, + &dev_attr_min_link_speed, + &dev_attr_max_speed_sup, NULL, }; -- cgit v1.1