| /* |
| * QLogic Fibre Channel HBA Driver |
| * Copyright (c) 2003-2005 QLogic Corporation |
| * |
| * See LICENSE.qla2xxx for copyright and licensing details. |
| */ |
| #include "qla_def.h" |
| |
| #include <linux/vmalloc.h> |
| #include <scsi/scsi_transport_fc.h> |
| |
| /* SYSFS attributes --------------------------------------------------------- */ |
| |
| static ssize_t |
| qla2x00_sysfs_read_fw_dump(struct kobject *kobj, char *buf, loff_t off, |
| size_t count) |
| { |
| struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj, |
| struct device, kobj))); |
| |
| if (ha->fw_dump_reading == 0) |
| return 0; |
| if (off > ha->fw_dump_buffer_len) |
| return 0; |
| if (off + count > ha->fw_dump_buffer_len) |
| count = ha->fw_dump_buffer_len - off; |
| |
| memcpy(buf, &ha->fw_dump_buffer[off], count); |
| |
| return (count); |
| } |
| |
| static ssize_t |
| qla2x00_sysfs_write_fw_dump(struct kobject *kobj, char *buf, loff_t off, |
| size_t count) |
| { |
| struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj, |
| struct device, kobj))); |
| int reading; |
| uint32_t dump_size; |
| |
| if (off != 0) |
| return (0); |
| |
| reading = simple_strtol(buf, NULL, 10); |
| switch (reading) { |
| case 0: |
| if (ha->fw_dump_reading == 1) { |
| qla_printk(KERN_INFO, ha, |
| "Firmware dump cleared on (%ld).\n", |
| ha->host_no); |
| |
| vfree(ha->fw_dump_buffer); |
| if (!IS_QLA24XX(ha) && !IS_QLA25XX(ha)) |
| free_pages((unsigned long)ha->fw_dump, |
| ha->fw_dump_order); |
| |
| ha->fw_dump_reading = 0; |
| ha->fw_dump_buffer = NULL; |
| ha->fw_dump = NULL; |
| ha->fw_dumped = 0; |
| } |
| break; |
| case 1: |
| if ((ha->fw_dump || ha->fw_dumped) && !ha->fw_dump_reading) { |
| ha->fw_dump_reading = 1; |
| |
| if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) |
| dump_size = FW_DUMP_SIZE_24XX; |
| else { |
| dump_size = FW_DUMP_SIZE_1M; |
| if (ha->fw_memory_size < 0x20000) |
| dump_size = FW_DUMP_SIZE_128K; |
| else if (ha->fw_memory_size < 0x80000) |
| dump_size = FW_DUMP_SIZE_512K; |
| } |
| ha->fw_dump_buffer = (char *)vmalloc(dump_size); |
| if (ha->fw_dump_buffer == NULL) { |
| qla_printk(KERN_WARNING, ha, |
| "Unable to allocate memory for firmware " |
| "dump buffer (%d).\n", dump_size); |
| |
| ha->fw_dump_reading = 0; |
| return (count); |
| } |
| qla_printk(KERN_INFO, ha, |
| "Firmware dump ready for read on (%ld).\n", |
| ha->host_no); |
| memset(ha->fw_dump_buffer, 0, dump_size); |
| ha->isp_ops.ascii_fw_dump(ha); |
| ha->fw_dump_buffer_len = strlen(ha->fw_dump_buffer); |
| } |
| break; |
| } |
| return (count); |
| } |
| |
| static struct bin_attribute sysfs_fw_dump_attr = { |
| .attr = { |
| .name = "fw_dump", |
| .mode = S_IRUSR | S_IWUSR, |
| .owner = THIS_MODULE, |
| }, |
| .size = 0, |
| .read = qla2x00_sysfs_read_fw_dump, |
| .write = qla2x00_sysfs_write_fw_dump, |
| }; |
| |
| static ssize_t |
| qla2x00_sysfs_read_nvram(struct kobject *kobj, char *buf, loff_t off, |
| size_t count) |
| { |
| struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj, |
| struct device, kobj))); |
| unsigned long flags; |
| |
| if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->nvram_size) |
| return 0; |
| |
| /* Read NVRAM. */ |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| ha->isp_ops.read_nvram(ha, (uint8_t *)buf, ha->nvram_base, |
| ha->nvram_size); |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| |
| return (count); |
| } |
| |
| static ssize_t |
| qla2x00_sysfs_write_nvram(struct kobject *kobj, char *buf, loff_t off, |
| size_t count) |
| { |
| struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj, |
| struct device, kobj))); |
| unsigned long flags; |
| uint16_t cnt; |
| |
| if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->nvram_size) |
| return 0; |
| |
| /* Checksum NVRAM. */ |
| if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) { |
| uint32_t *iter; |
| uint32_t chksum; |
| |
| iter = (uint32_t *)buf; |
| chksum = 0; |
| for (cnt = 0; cnt < ((count >> 2) - 1); cnt++) |
| chksum += le32_to_cpu(*iter++); |
| chksum = ~chksum + 1; |
| *iter = cpu_to_le32(chksum); |
| } else { |
| uint8_t *iter; |
| uint8_t chksum; |
| |
| iter = (uint8_t *)buf; |
| chksum = 0; |
| for (cnt = 0; cnt < count - 1; cnt++) |
| chksum += *iter++; |
| chksum = ~chksum + 1; |
| *iter = chksum; |
| } |
| |
| /* Write NVRAM. */ |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| ha->isp_ops.write_nvram(ha, (uint8_t *)buf, ha->nvram_base, count); |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| |
| return (count); |
| } |
| |
| static struct bin_attribute sysfs_nvram_attr = { |
| .attr = { |
| .name = "nvram", |
| .mode = S_IRUSR | S_IWUSR, |
| .owner = THIS_MODULE, |
| }, |
| .size = 0, |
| .read = qla2x00_sysfs_read_nvram, |
| .write = qla2x00_sysfs_write_nvram, |
| }; |
| |
| void |
| qla2x00_alloc_sysfs_attr(scsi_qla_host_t *ha) |
| { |
| struct Scsi_Host *host = ha->host; |
| |
| sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_fw_dump_attr); |
| sysfs_nvram_attr.size = ha->nvram_size; |
| sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_nvram_attr); |
| } |
| |
| void |
| qla2x00_free_sysfs_attr(scsi_qla_host_t *ha) |
| { |
| struct Scsi_Host *host = ha->host; |
| |
| sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_fw_dump_attr); |
| sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_nvram_attr); |
| } |
| |
| /* Scsi_Host attributes. */ |
| |
| static ssize_t |
| qla2x00_drvr_version_show(struct class_device *cdev, char *buf) |
| { |
| return snprintf(buf, PAGE_SIZE, "%s\n", qla2x00_version_str); |
| } |
| |
| static ssize_t |
| qla2x00_fw_version_show(struct class_device *cdev, char *buf) |
| { |
| scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); |
| char fw_str[30]; |
| |
| return snprintf(buf, PAGE_SIZE, "%s\n", |
| ha->isp_ops.fw_version_str(ha, fw_str)); |
| } |
| |
| static ssize_t |
| qla2x00_serial_num_show(struct class_device *cdev, char *buf) |
| { |
| scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); |
| uint32_t sn; |
| |
| sn = ((ha->serial0 & 0x1f) << 16) | (ha->serial2 << 8) | ha->serial1; |
| return snprintf(buf, PAGE_SIZE, "%c%05d\n", 'A' + sn / 100000, |
| sn % 100000); |
| } |
| |
| static ssize_t |
| qla2x00_isp_name_show(struct class_device *cdev, char *buf) |
| { |
| scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); |
| return snprintf(buf, PAGE_SIZE, "ISP%04X\n", ha->pdev->device); |
| } |
| |
| static ssize_t |
| qla2x00_isp_id_show(struct class_device *cdev, char *buf) |
| { |
| scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); |
| return snprintf(buf, PAGE_SIZE, "%04x %04x %04x %04x\n", |
| ha->product_id[0], ha->product_id[1], ha->product_id[2], |
| ha->product_id[3]); |
| } |
| |
| static ssize_t |
| qla2x00_model_name_show(struct class_device *cdev, char *buf) |
| { |
| scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); |
| return snprintf(buf, PAGE_SIZE, "%s\n", ha->model_number); |
| } |
| |
| static ssize_t |
| qla2x00_model_desc_show(struct class_device *cdev, char *buf) |
| { |
| scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); |
| return snprintf(buf, PAGE_SIZE, "%s\n", |
| ha->model_desc ? ha->model_desc: ""); |
| } |
| |
| static ssize_t |
| qla2x00_pci_info_show(struct class_device *cdev, char *buf) |
| { |
| scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); |
| char pci_info[30]; |
| |
| return snprintf(buf, PAGE_SIZE, "%s\n", |
| ha->isp_ops.pci_info_str(ha, pci_info)); |
| } |
| |
| static ssize_t |
| qla2x00_state_show(struct class_device *cdev, char *buf) |
| { |
| scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); |
| int len = 0; |
| |
| if (atomic_read(&ha->loop_state) == LOOP_DOWN || |
| atomic_read(&ha->loop_state) == LOOP_DEAD) |
| len = snprintf(buf, PAGE_SIZE, "Link Down\n"); |
| else if (atomic_read(&ha->loop_state) != LOOP_READY || |
| test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) || |
| test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) |
| len = snprintf(buf, PAGE_SIZE, "Unknown Link State\n"); |
| else { |
| len = snprintf(buf, PAGE_SIZE, "Link Up - "); |
| |
| switch (ha->current_topology) { |
| case ISP_CFG_NL: |
| len += snprintf(buf + len, PAGE_SIZE-len, "Loop\n"); |
| break; |
| case ISP_CFG_FL: |
| len += snprintf(buf + len, PAGE_SIZE-len, "FL_Port\n"); |
| break; |
| case ISP_CFG_N: |
| len += snprintf(buf + len, PAGE_SIZE-len, |
| "N_Port to N_Port\n"); |
| break; |
| case ISP_CFG_F: |
| len += snprintf(buf + len, PAGE_SIZE-len, "F_Port\n"); |
| break; |
| default: |
| len += snprintf(buf + len, PAGE_SIZE-len, "Loop\n"); |
| break; |
| } |
| } |
| return len; |
| } |
| |
| static ssize_t |
| qla2x00_zio_show(struct class_device *cdev, char *buf) |
| { |
| scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); |
| int len = 0; |
| |
| switch (ha->zio_mode) { |
| case QLA_ZIO_MODE_5: |
| len += snprintf(buf + len, PAGE_SIZE-len, "Mode 5\n"); |
| break; |
| case QLA_ZIO_MODE_6: |
| len += snprintf(buf + len, PAGE_SIZE-len, "Mode 6\n"); |
| break; |
| case QLA_ZIO_DISABLED: |
| len += snprintf(buf + len, PAGE_SIZE-len, "Disabled\n"); |
| break; |
| } |
| return len; |
| } |
| |
| static ssize_t |
| qla2x00_zio_store(struct class_device *cdev, const char *buf, size_t count) |
| { |
| scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); |
| int val = 0; |
| uint16_t zio_mode; |
| |
| if (sscanf(buf, "%d", &val) != 1) |
| return -EINVAL; |
| |
| switch (val) { |
| case 1: |
| zio_mode = QLA_ZIO_MODE_5; |
| break; |
| case 2: |
| zio_mode = QLA_ZIO_MODE_6; |
| break; |
| default: |
| zio_mode = QLA_ZIO_DISABLED; |
| break; |
| } |
| |
| /* Update per-hba values and queue a reset. */ |
| if (zio_mode != QLA_ZIO_DISABLED || ha->zio_mode != QLA_ZIO_DISABLED) { |
| ha->zio_mode = zio_mode; |
| set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); |
| } |
| return strlen(buf); |
| } |
| |
| static ssize_t |
| qla2x00_zio_timer_show(struct class_device *cdev, char *buf) |
| { |
| scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); |
| |
| return snprintf(buf, PAGE_SIZE, "%d us\n", ha->zio_timer * 100); |
| } |
| |
| static ssize_t |
| qla2x00_zio_timer_store(struct class_device *cdev, const char *buf, |
| size_t count) |
| { |
| scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); |
| int val = 0; |
| uint16_t zio_timer; |
| |
| if (sscanf(buf, "%d", &val) != 1) |
| return -EINVAL; |
| if (val > 25500 || val < 100) |
| return -ERANGE; |
| |
| zio_timer = (uint16_t)(val / 100); |
| ha->zio_timer = zio_timer; |
| |
| return strlen(buf); |
| } |
| |
| static CLASS_DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_drvr_version_show, |
| NULL); |
| static CLASS_DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL); |
| static CLASS_DEVICE_ATTR(serial_num, S_IRUGO, qla2x00_serial_num_show, NULL); |
| static CLASS_DEVICE_ATTR(isp_name, S_IRUGO, qla2x00_isp_name_show, NULL); |
| static CLASS_DEVICE_ATTR(isp_id, S_IRUGO, qla2x00_isp_id_show, NULL); |
| static CLASS_DEVICE_ATTR(model_name, S_IRUGO, qla2x00_model_name_show, NULL); |
| static CLASS_DEVICE_ATTR(model_desc, S_IRUGO, qla2x00_model_desc_show, NULL); |
| static CLASS_DEVICE_ATTR(pci_info, S_IRUGO, qla2x00_pci_info_show, NULL); |
| static CLASS_DEVICE_ATTR(state, S_IRUGO, qla2x00_state_show, NULL); |
| static CLASS_DEVICE_ATTR(zio, S_IRUGO | S_IWUSR, qla2x00_zio_show, |
| qla2x00_zio_store); |
| static CLASS_DEVICE_ATTR(zio_timer, S_IRUGO | S_IWUSR, qla2x00_zio_timer_show, |
| qla2x00_zio_timer_store); |
| |
| struct class_device_attribute *qla2x00_host_attrs[] = { |
| &class_device_attr_driver_version, |
| &class_device_attr_fw_version, |
| &class_device_attr_serial_num, |
| &class_device_attr_isp_name, |
| &class_device_attr_isp_id, |
| &class_device_attr_model_name, |
| &class_device_attr_model_desc, |
| &class_device_attr_pci_info, |
| &class_device_attr_state, |
| &class_device_attr_zio, |
| &class_device_attr_zio_timer, |
| NULL, |
| }; |
| |
| /* Host attributes. */ |
| |
| static void |
| qla2x00_get_host_port_id(struct Scsi_Host *shost) |
| { |
| scsi_qla_host_t *ha = to_qla_host(shost); |
| |
| fc_host_port_id(shost) = ha->d_id.b.domain << 16 | |
| ha->d_id.b.area << 8 | ha->d_id.b.al_pa; |
| } |
| |
| static void |
| qla2x00_get_starget_node_name(struct scsi_target *starget) |
| { |
| struct Scsi_Host *host = dev_to_shost(starget->dev.parent); |
| scsi_qla_host_t *ha = to_qla_host(host); |
| fc_port_t *fcport; |
| u64 node_name = 0; |
| |
| list_for_each_entry(fcport, &ha->fcports, list) { |
| if (starget->id == fcport->os_target_id) { |
| node_name = wwn_to_u64(fcport->node_name); |
| break; |
| } |
| } |
| |
| fc_starget_node_name(starget) = node_name; |
| } |
| |
| static void |
| qla2x00_get_starget_port_name(struct scsi_target *starget) |
| { |
| struct Scsi_Host *host = dev_to_shost(starget->dev.parent); |
| scsi_qla_host_t *ha = to_qla_host(host); |
| fc_port_t *fcport; |
| u64 port_name = 0; |
| |
| list_for_each_entry(fcport, &ha->fcports, list) { |
| if (starget->id == fcport->os_target_id) { |
| port_name = wwn_to_u64(fcport->port_name); |
| break; |
| } |
| } |
| |
| fc_starget_port_name(starget) = port_name; |
| } |
| |
| static void |
| qla2x00_get_starget_port_id(struct scsi_target *starget) |
| { |
| struct Scsi_Host *host = dev_to_shost(starget->dev.parent); |
| scsi_qla_host_t *ha = to_qla_host(host); |
| fc_port_t *fcport; |
| uint32_t port_id = ~0U; |
| |
| list_for_each_entry(fcport, &ha->fcports, list) { |
| if (starget->id == fcport->os_target_id) { |
| port_id = fcport->d_id.b.domain << 16 | |
| fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa; |
| break; |
| } |
| } |
| |
| fc_starget_port_id(starget) = port_id; |
| } |
| |
| static void |
| qla2x00_get_rport_loss_tmo(struct fc_rport *rport) |
| { |
| struct Scsi_Host *host = rport_to_shost(rport); |
| scsi_qla_host_t *ha = to_qla_host(host); |
| |
| rport->dev_loss_tmo = ha->port_down_retry_count + 5; |
| } |
| |
| static void |
| qla2x00_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) |
| { |
| struct Scsi_Host *host = rport_to_shost(rport); |
| scsi_qla_host_t *ha = to_qla_host(host); |
| |
| if (timeout) |
| ha->port_down_retry_count = timeout; |
| else |
| ha->port_down_retry_count = 1; |
| |
| rport->dev_loss_tmo = ha->port_down_retry_count + 5; |
| } |
| |
| static int |
| qla2x00_issue_lip(struct Scsi_Host *shost) |
| { |
| scsi_qla_host_t *ha = to_qla_host(shost); |
| |
| set_bit(LOOP_RESET_NEEDED, &ha->dpc_flags); |
| return 0; |
| } |
| |
| struct fc_function_template qla2xxx_transport_functions = { |
| |
| .show_host_node_name = 1, |
| .show_host_port_name = 1, |
| .show_host_supported_classes = 1, |
| |
| .get_host_port_id = qla2x00_get_host_port_id, |
| .show_host_port_id = 1, |
| |
| .dd_fcrport_size = sizeof(struct fc_port *), |
| .show_rport_supported_classes = 1, |
| |
| .get_starget_node_name = qla2x00_get_starget_node_name, |
| .show_starget_node_name = 1, |
| .get_starget_port_name = qla2x00_get_starget_port_name, |
| .show_starget_port_name = 1, |
| .get_starget_port_id = qla2x00_get_starget_port_id, |
| .show_starget_port_id = 1, |
| |
| .get_rport_dev_loss_tmo = qla2x00_get_rport_loss_tmo, |
| .set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo, |
| .show_rport_dev_loss_tmo = 1, |
| |
| .issue_fc_host_lip = qla2x00_issue_lip, |
| }; |
| |
| void |
| qla2x00_init_host_attr(scsi_qla_host_t *ha) |
| { |
| fc_host_node_name(ha->host) = wwn_to_u64(ha->node_name); |
| fc_host_port_name(ha->host) = wwn_to_u64(ha->port_name); |
| fc_host_supported_classes(ha->host) = FC_COS_CLASS3; |
| } |