This commit was manufactured by cvs2svn to create branch 'vserver'.
[linux-2.6.git] / drivers / scsi / qla2xxx / qla_attr.c
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
new file mode 100644 (file)
index 0000000..9bc1f15
--- /dev/null
@@ -0,0 +1,332 @@
+/*
+ *                  QLOGIC LINUX SOFTWARE
+ *
+ * QLogic ISP2x00 device driver for Linux 2.6.x
+ * Copyright (C) 2003-2005 QLogic Corporation
+ * (www.qlogic.com)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more 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);
+                       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;
+               }
+               break;
+       case 1:
+               if (ha->fw_dump != NULL && !ha->fw_dump_reading) {
+                       ha->fw_dump_reading = 1;
+
+                       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);
+                       if (IS_QLA2100(ha) || IS_QLA2200(ha))
+                               qla2100_ascii_fw_dump(ha);
+                       else
+                               qla2300_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)));
+       uint16_t        *witer;
+       unsigned long   flags;
+       uint16_t        cnt;
+
+       if (!capable(CAP_SYS_ADMIN) || off != 0 || count != sizeof(nvram_t))
+               return 0;
+
+       /* Read NVRAM. */
+       spin_lock_irqsave(&ha->hardware_lock, flags);
+       qla2x00_lock_nvram_access(ha);
+       witer = (uint16_t *)buf;
+       for (cnt = 0; cnt < count / 2; cnt++) {
+               *witer = cpu_to_le16(qla2x00_get_nvram_word(ha,
+                   cnt+ha->nvram_base));
+               witer++;
+       }
+       qla2x00_unlock_nvram_access(ha);
+       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)));
+       uint8_t         *iter;
+       uint16_t        *witer;
+       unsigned long   flags;
+       uint16_t        cnt;
+       uint8_t         chksum;
+
+       if (!capable(CAP_SYS_ADMIN) || off != 0 || count != sizeof(nvram_t))
+               return 0;
+
+       /* Checksum NVRAM. */
+       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);
+       qla2x00_lock_nvram_access(ha);
+       qla2x00_release_nvram_protection(ha);
+       witer = (uint16_t *)buf;
+       for (cnt = 0; cnt < count / 2; cnt++) {
+               qla2x00_write_nvram_word(ha, cnt+ha->nvram_base,
+                   cpu_to_le16(*witer));
+               witer++;
+       }
+       qla2x00_unlock_nvram_access(ha);
+       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 = sizeof(nvram_t),
+       .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_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);
+}
+
+/* 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;
+       uint64_t node_name = 0;
+
+       list_for_each_entry(fcport, &ha->fcports, list) {
+               if (starget->id == fcport->os_target_id) {
+                       node_name = *(uint64_t *)fcport->node_name;
+                       break;
+               }
+       }
+
+       fc_starget_node_name(starget) = be64_to_cpu(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;
+       uint64_t port_name = 0;
+
+       list_for_each_entry(fcport, &ha->fcports, list) {
+               if (starget->id == fcport->os_target_id) {
+                       port_name = *(uint64_t *)fcport->port_name;
+                       break;
+               }
+       }
+
+       fc_starget_port_name(starget) = be64_to_cpu(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;
+}
+
+struct fc_function_template qla2xxx_transport_functions = {
+
+       .show_host_node_name = 1,
+       .show_host_port_name = 1,
+       .get_host_port_id = qla2x00_get_host_port_id,
+       .show_host_port_id = 1,
+
+       .dd_fcrport_size = sizeof(struct fc_port *),
+
+       .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,
+
+};
+
+void
+qla2x00_init_host_attr(scsi_qla_host_t *ha)
+{
+       fc_host_node_name(ha->host) =
+           be64_to_cpu(*(uint64_t *)ha->init_cb->node_name);
+       fc_host_port_name(ha->host) =
+           be64_to_cpu(*(uint64_t *)ha->init_cb->port_name);
+}