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path: root/drivers/scsi/ibmvscsi/ibmvscsi.c
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Diffstat (limited to 'drivers/scsi/ibmvscsi/ibmvscsi.c')
-rw-r--r--drivers/scsi/ibmvscsi/ibmvscsi.c71
1 files changed, 4 insertions, 67 deletions
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index c2082953e15c..e8d4af527341 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -1853,62 +1853,6 @@ static void ibmvscsi_handle_crq(struct viosrp_crq *crq,
}
/**
- * ibmvscsi_get_host_config: Send the command to the server to get host
- * configuration data. The data is opaque to us.
- */
-static int ibmvscsi_do_host_config(struct ibmvscsi_host_data *hostdata,
- unsigned char *buffer, int length)
-{
- struct viosrp_host_config *host_config;
- struct srp_event_struct *evt_struct;
- unsigned long flags;
- dma_addr_t addr;
- int rc;
-
- evt_struct = get_event_struct(&hostdata->pool);
- if (!evt_struct) {
- dev_err(hostdata->dev, "couldn't allocate event for HOST_CONFIG!\n");
- return -1;
- }
-
- init_event_struct(evt_struct,
- sync_completion,
- VIOSRP_MAD_FORMAT,
- info_timeout);
-
- host_config = &evt_struct->iu.mad.host_config;
-
- /* The transport length field is only 16-bit */
- length = min(0xffff, length);
-
- /* Set up a lun reset SRP command */
- memset(host_config, 0x00, sizeof(*host_config));
- host_config->common.type = cpu_to_be32(VIOSRP_HOST_CONFIG_TYPE);
- host_config->common.length = cpu_to_be16(length);
- addr = dma_map_single(hostdata->dev, buffer, length, DMA_BIDIRECTIONAL);
-
- if (dma_mapping_error(hostdata->dev, addr)) {
- if (!firmware_has_feature(FW_FEATURE_CMO))
- dev_err(hostdata->dev,
- "dma_mapping error getting host config\n");
- free_event_struct(&hostdata->pool, evt_struct);
- return -1;
- }
-
- host_config->buffer = cpu_to_be64(addr);
-
- init_completion(&evt_struct->comp);
- spin_lock_irqsave(hostdata->host->host_lock, flags);
- rc = ibmvscsi_send_srp_event(evt_struct, hostdata, info_timeout * 2);
- spin_unlock_irqrestore(hostdata->host->host_lock, flags);
- if (rc == 0)
- wait_for_completion(&evt_struct->comp);
- dma_unmap_single(hostdata->dev, addr, length, DMA_BIDIRECTIONAL);
-
- return rc;
-}
-
-/**
* ibmvscsi_slave_configure: Set the "allow_restart" flag for each disk.
* @sdev: struct scsi_device device to configure
*
@@ -2093,21 +2037,14 @@ static struct device_attribute ibmvscsi_host_os_type = {
static ssize_t show_host_config(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct Scsi_Host *shost = class_to_shost(dev);
- struct ibmvscsi_host_data *hostdata = shost_priv(shost);
-
- /* returns null-terminated host config data */
- if (ibmvscsi_do_host_config(hostdata, buf, PAGE_SIZE) == 0)
- return strlen(buf);
- else
- return 0;
+ return 0;
}
static struct device_attribute ibmvscsi_host_config = {
.attr = {
- .name = "config",
- .mode = S_IRUGO,
- },
+ .name = "config",
+ .mode = S_IRUGO,
+ },
.show = show_host_config,
};