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