ibmvfc.c (b10778a00d40b3d9fdaaf5891e802794781ff71c) ibmvfc.c (c40ecc12cfdb630332198a04e2832ae8218a61f1)
1/*
2 * ibmvfc.c -- driver for IBM Power Virtual Fibre Channel Adapter
3 *
4 * Written By: Brian King <brking@linux.vnet.ibm.com>, IBM Corporation
5 *
6 * Copyright (C) IBM Corporation, 2008
7 *
8 * This program is free software; you can redistribute it and/or modify

--- 1629 unchanged lines hidden (view full) ---

1638 vfc_cmd->payload_len = cpu_to_be32(sizeof(vfc_cmd->iu));
1639 vfc_cmd->resp_len = cpu_to_be32(sizeof(vfc_cmd->rsp));
1640 vfc_cmd->cancel_key = cpu_to_be32((unsigned long)cmnd->device->hostdata);
1641 vfc_cmd->tgt_scsi_id = cpu_to_be64(rport->port_id);
1642 vfc_cmd->iu.xfer_len = cpu_to_be32(scsi_bufflen(cmnd));
1643 int_to_scsilun(cmnd->device->lun, &vfc_cmd->iu.lun);
1644 memcpy(vfc_cmd->iu.cdb, cmnd->cmnd, cmnd->cmd_len);
1645
1/*
2 * ibmvfc.c -- driver for IBM Power Virtual Fibre Channel Adapter
3 *
4 * Written By: Brian King <brking@linux.vnet.ibm.com>, IBM Corporation
5 *
6 * Copyright (C) IBM Corporation, 2008
7 *
8 * This program is free software; you can redistribute it and/or modify

--- 1629 unchanged lines hidden (view full) ---

1638 vfc_cmd->payload_len = cpu_to_be32(sizeof(vfc_cmd->iu));
1639 vfc_cmd->resp_len = cpu_to_be32(sizeof(vfc_cmd->rsp));
1640 vfc_cmd->cancel_key = cpu_to_be32((unsigned long)cmnd->device->hostdata);
1641 vfc_cmd->tgt_scsi_id = cpu_to_be64(rport->port_id);
1642 vfc_cmd->iu.xfer_len = cpu_to_be32(scsi_bufflen(cmnd));
1643 int_to_scsilun(cmnd->device->lun, &vfc_cmd->iu.lun);
1644 memcpy(vfc_cmd->iu.cdb, cmnd->cmnd, cmnd->cmd_len);
1645
1646 if (scsi_populate_tag_msg(cmnd, tag)) {
1647 vfc_cmd->task_tag = cpu_to_be64(tag[1]);
1648 switch (tag[0]) {
1649 case MSG_SIMPLE_TAG:
1650 vfc_cmd->iu.pri_task_attr = IBMVFC_SIMPLE_TASK;
1651 break;
1652 case MSG_HEAD_TAG:
1653 vfc_cmd->iu.pri_task_attr = IBMVFC_HEAD_OF_QUEUE;
1654 break;
1655 case MSG_ORDERED_TAG:
1656 vfc_cmd->iu.pri_task_attr = IBMVFC_ORDERED_TASK;
1657 break;
1658 };
1646 if (cmnd->flags & SCMD_TAGGED) {
1647 vfc_cmd->task_tag = cpu_to_be64(cmnd->tag);
1648 vfc_cmd->iu.pri_task_attr = IBMVFC_SIMPLE_TASK;
1659 }
1660
1661 if (likely(!(rc = ibmvfc_map_sg_data(cmnd, evt, vfc_cmd, vhost->dev))))
1662 return ibmvfc_send_event(evt, vhost, 0);
1663
1664 ibmvfc_free_event(evt);
1665 if (rc == -ENOMEM)
1666 return SCSI_MLQUEUE_HOST_BUSY;

--- 1225 unchanged lines hidden (view full) ---

2892static int ibmvfc_slave_configure(struct scsi_device *sdev)
2893{
2894 struct Scsi_Host *shost = sdev->host;
2895 unsigned long flags = 0;
2896
2897 spin_lock_irqsave(shost->host_lock, flags);
2898 if (sdev->type == TYPE_DISK)
2899 sdev->allow_restart = 1;
1649 }
1650
1651 if (likely(!(rc = ibmvfc_map_sg_data(cmnd, evt, vfc_cmd, vhost->dev))))
1652 return ibmvfc_send_event(evt, vhost, 0);
1653
1654 ibmvfc_free_event(evt);
1655 if (rc == -ENOMEM)
1656 return SCSI_MLQUEUE_HOST_BUSY;

--- 1225 unchanged lines hidden (view full) ---

2882static int ibmvfc_slave_configure(struct scsi_device *sdev)
2883{
2884 struct Scsi_Host *shost = sdev->host;
2885 unsigned long flags = 0;
2886
2887 spin_lock_irqsave(shost->host_lock, flags);
2888 if (sdev->type == TYPE_DISK)
2889 sdev->allow_restart = 1;
2900
2901 if (sdev->tagged_supported) {
2902 scsi_set_tag_type(sdev, MSG_SIMPLE_TAG);
2903 scsi_activate_tcq(sdev, sdev->queue_depth);
2904 } else
2905 scsi_deactivate_tcq(sdev, sdev->queue_depth);
2906 spin_unlock_irqrestore(shost->host_lock, flags);
2907 return 0;
2908}
2909
2910/**
2911 * ibmvfc_change_queue_depth - Change the device's queue depth
2912 * @sdev: scsi device struct
2913 * @qdepth: depth to set

--- 6 unchanged lines hidden (view full) ---

2920 int reason)
2921{
2922 if (reason != SCSI_QDEPTH_DEFAULT)
2923 return -EOPNOTSUPP;
2924
2925 if (qdepth > IBMVFC_MAX_CMDS_PER_LUN)
2926 qdepth = IBMVFC_MAX_CMDS_PER_LUN;
2927
2890 spin_unlock_irqrestore(shost->host_lock, flags);
2891 return 0;
2892}
2893
2894/**
2895 * ibmvfc_change_queue_depth - Change the device's queue depth
2896 * @sdev: scsi device struct
2897 * @qdepth: depth to set

--- 6 unchanged lines hidden (view full) ---

2904 int reason)
2905{
2906 if (reason != SCSI_QDEPTH_DEFAULT)
2907 return -EOPNOTSUPP;
2908
2909 if (qdepth > IBMVFC_MAX_CMDS_PER_LUN)
2910 qdepth = IBMVFC_MAX_CMDS_PER_LUN;
2911
2928 scsi_adjust_queue_depth(sdev, 0, qdepth);
2912 scsi_adjust_queue_depth(sdev, qdepth);
2929 return sdev->queue_depth;
2930}
2931
2913 return sdev->queue_depth;
2914}
2915
2932/**
2933 * ibmvfc_change_queue_type - Change the device's queue type
2934 * @sdev: scsi device struct
2935 * @tag_type: type of tags to use
2936 *
2937 * Return value:
2938 * actual queue type set
2939 **/
2940static int ibmvfc_change_queue_type(struct scsi_device *sdev, int tag_type)
2941{
2942 if (sdev->tagged_supported) {
2943 scsi_set_tag_type(sdev, tag_type);
2944
2945 if (tag_type)
2946 scsi_activate_tcq(sdev, sdev->queue_depth);
2947 else
2948 scsi_deactivate_tcq(sdev, sdev->queue_depth);
2949 } else
2950 tag_type = 0;
2951
2952 return tag_type;
2953}
2954
2955static ssize_t ibmvfc_show_host_partition_name(struct device *dev,
2956 struct device_attribute *attr, char *buf)
2957{
2958 struct Scsi_Host *shost = class_to_shost(dev);
2959 struct ibmvfc_host *vhost = shost_priv(shost);
2960
2961 return snprintf(buf, PAGE_SIZE, "%s\n",
2962 vhost->login_buf->resp.partition_name);

--- 165 unchanged lines hidden (view full) ---

3128 .eh_device_reset_handler = ibmvfc_eh_device_reset_handler,
3129 .eh_target_reset_handler = ibmvfc_eh_target_reset_handler,
3130 .eh_host_reset_handler = ibmvfc_eh_host_reset_handler,
3131 .slave_alloc = ibmvfc_slave_alloc,
3132 .slave_configure = ibmvfc_slave_configure,
3133 .target_alloc = ibmvfc_target_alloc,
3134 .scan_finished = ibmvfc_scan_finished,
3135 .change_queue_depth = ibmvfc_change_queue_depth,
2916static ssize_t ibmvfc_show_host_partition_name(struct device *dev,
2917 struct device_attribute *attr, char *buf)
2918{
2919 struct Scsi_Host *shost = class_to_shost(dev);
2920 struct ibmvfc_host *vhost = shost_priv(shost);
2921
2922 return snprintf(buf, PAGE_SIZE, "%s\n",
2923 vhost->login_buf->resp.partition_name);

--- 165 unchanged lines hidden (view full) ---

3089 .eh_device_reset_handler = ibmvfc_eh_device_reset_handler,
3090 .eh_target_reset_handler = ibmvfc_eh_target_reset_handler,
3091 .eh_host_reset_handler = ibmvfc_eh_host_reset_handler,
3092 .slave_alloc = ibmvfc_slave_alloc,
3093 .slave_configure = ibmvfc_slave_configure,
3094 .target_alloc = ibmvfc_target_alloc,
3095 .scan_finished = ibmvfc_scan_finished,
3096 .change_queue_depth = ibmvfc_change_queue_depth,
3136 .change_queue_type = ibmvfc_change_queue_type,
3097 .change_queue_type = scsi_change_queue_type,
3137 .cmd_per_lun = 16,
3138 .can_queue = IBMVFC_MAX_REQUESTS_DEFAULT,
3139 .this_id = -1,
3140 .sg_tablesize = SG_ALL,
3141 .max_sectors = IBMVFC_MAX_SECTORS,
3142 .use_clustering = ENABLE_CLUSTERING,
3143 .shost_attrs = ibmvfc_attrs,
3098 .cmd_per_lun = 16,
3099 .can_queue = IBMVFC_MAX_REQUESTS_DEFAULT,
3100 .this_id = -1,
3101 .sg_tablesize = SG_ALL,
3102 .max_sectors = IBMVFC_MAX_SECTORS,
3103 .use_clustering = ENABLE_CLUSTERING,
3104 .shost_attrs = ibmvfc_attrs,
3105 .use_blk_tags = 1,
3106 .track_queue_depth = 1,
3144};
3145
3146/**
3147 * ibmvfc_next_async_crq - Returns the next entry in async queue
3148 * @vhost: ibmvfc host struct
3149 *
3150 * Returns:
3151 * Pointer to next entry in queue / NULL if empty

--- 1909 unchanged lines hidden --- 		3107};
3108
3109/**
3110 * ibmvfc_next_async_crq - Returns the next entry in async queue
3111 * @vhost: ibmvfc host struct
3112 *
3113 * Returns:
3114 * Pointer to next entry in queue / NULL if empty

--- 1909 unchanged lines hidden ---