324 lines
8.2 KiB
C
324 lines
8.2 KiB
C
/*
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* QLOGIC LINUX SOFTWARE
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*
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* QLogic ISP2x00 device driver for Linux 2.6.x
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* Copyright (C) 2003-2005 QLogic Corporation
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* (www.qlogic.com)
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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*/
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#include "qla_def.h"
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#include <linux/version.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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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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}
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break;
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case 1:
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if (ha->fw_dump != NULL && !ha->fw_dump_reading) {
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ha->fw_dump_reading = 1;
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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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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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if (IS_QLA2100(ha) || IS_QLA2200(ha))
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qla2100_ascii_fw_dump(ha);
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else
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qla2300_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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uint16_t *witer;
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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 != sizeof(nvram_t))
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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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qla2x00_lock_nvram_access(ha);
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witer = (uint16_t *)buf;
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for (cnt = 0; cnt < count / 2; cnt++) {
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*witer = cpu_to_le16(qla2x00_get_nvram_word(ha,
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cnt+ha->nvram_base));
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witer++;
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}
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qla2x00_unlock_nvram_access(ha);
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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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uint8_t *iter;
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uint16_t *witer;
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unsigned long flags;
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uint16_t cnt;
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uint8_t chksum;
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if (!capable(CAP_SYS_ADMIN) || off != 0 || count != sizeof(nvram_t))
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return 0;
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/* Checksum NVRAM. */
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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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/* Write NVRAM. */
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spin_lock_irqsave(&ha->hardware_lock, flags);
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qla2x00_lock_nvram_access(ha);
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qla2x00_release_nvram_protection(ha);
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witer = (uint16_t *)buf;
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for (cnt = 0; cnt < count / 2; cnt++) {
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qla2x00_write_nvram_word(ha, cnt+ha->nvram_base,
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cpu_to_le16(*witer));
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witer++;
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}
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qla2x00_unlock_nvram_access(ha);
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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 = sizeof(nvram_t),
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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_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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/* 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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os_tgt_t *tq = (os_tgt_t *) TGT_Q(ha, starget->id);
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uint64_t node_name = 0;
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if (tq->fcport)
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node_name = be64_to_cpu(*(uint64_t *)tq->fcport->node_name);
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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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os_tgt_t *tq = (os_tgt_t *) TGT_Q(ha, starget->id);
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uint64_t port_name = 0;
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if (tq->fcport)
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port_name = be64_to_cpu(*(uint64_t *)tq->fcport->port_name);
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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)
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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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os_tgt_t *tq = (os_tgt_t *) TGT_Q(ha, starget->id);
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uint32_t port_id = 0;
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if (tq->fcport)
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port_id = tq->fcport->d_id.b.domain << 16 |
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tq->fcport->d_id.b.area << 8 | tq->fcport->d_id.b.al_pa;
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fc_starget_port_id(starget) = port_id;
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}
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static void
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qla2x00_get_rport_loss_tmo(struct fc_rport *rport)
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{
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os_tgt_t *tq = rport->dd_data;
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scsi_qla_host_t *ha = tq->ha;
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rport->dev_loss_tmo = ha->port_down_retry_count + 5;
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}
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static void
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qla2x00_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
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{
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os_tgt_t *tq = rport->dd_data;
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scsi_qla_host_t *ha = tq->ha;
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if (timeout)
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ha->port_down_retry_count = timeout;
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else
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ha->port_down_retry_count = 1;
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rport->dev_loss_tmo = ha->port_down_retry_count + 5;
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}
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static struct fc_function_template qla2xxx_transport_functions = {
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.show_host_node_name = 1,
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.show_host_port_name = 1,
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.get_host_port_id = qla2x00_get_host_port_id,
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.show_host_port_id = 1,
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.dd_fcrport_size = sizeof(os_tgt_t *),
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.get_starget_node_name = qla2x00_get_starget_node_name,
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.show_starget_node_name = 1,
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.get_starget_port_name = qla2x00_get_starget_port_name,
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.show_starget_port_name = 1,
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.get_starget_port_id = qla2x00_get_starget_port_id,
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.show_starget_port_id = 1,
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.get_rport_dev_loss_tmo = qla2x00_get_rport_loss_tmo,
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.set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo,
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.show_rport_dev_loss_tmo = 1,
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};
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struct scsi_transport_template *
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qla2x00_alloc_transport_tmpl(void)
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{
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return (fc_attach_transport(&qla2xxx_transport_functions));
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}
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void
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qla2x00_init_host_attr(scsi_qla_host_t *ha)
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{
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fc_host_node_name(ha->host) =
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be64_to_cpu(*(uint64_t *)ha->init_cb->node_name);
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fc_host_port_name(ha->host) =
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be64_to_cpu(*(uint64_t *)ha->init_cb->port_name);
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}
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