[SCSI] megaraid_sas: fix physical disk handling

This patch hides the devices completely from the midlayer instead.
It requires the patch to handle the slave_configure failure I posted
earlier.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 15 insertions, 14 deletions

diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c
index 7de267e14458..4f39dd01936d 100644
--- a/drivers/scsi/megaraid/megaraid_sas.c
+++ b/drivers/scsi/megaraid/megaraid_sas.c
@@ -793,6 +793,20 @@ megasas_queue_command(struct scsi_cmnd *scmd, void (*done) (struct scsi_cmnd *))
         return 0;
 }
 
+static int megasas_slave_configure(struct scsi_device *sdev)
+{
+        /*
+         * Don't export physical disk devices to the disk driver.
+         *
+         * FIXME: Currently we don't export them to the midlayer at all.
+         *        That will be fixed once LSI engineers have audited the
+         *        firmware for possible issues.
+         */
+        if (sdev->channel < MEGASAS_MAX_PD_CHANNELS && sdev->type == TYPE_DISK)
+                return -ENXIO;
+        return 0;
+}
+
 /**
  * megasas_wait_for_outstanding -       Wait for all outstanding cmds
  * @instance:                           Adapter soft state
@@ -943,6 +957,7 @@ static struct scsi_host_template megasas_template = {
         .module = THIS_MODULE,
         .name = "LSI Logic SAS based MegaRAID driver",
         .proc_name = "megaraid_sas",
+        .slave_configure = megasas_slave_configure,
         .queuecommand = megasas_queue_command,
         .eh_device_reset_handler = megasas_reset_device,
         .eh_bus_reset_handler = megasas_reset_bus_host,
@@ -1071,20 +1086,6 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
                         break;
                 }
 
-                /*
-                 * Don't export physical disk devices to mid-layer.
-                 */
-                if (!MEGASAS_IS_LOGICAL(cmd->scmd) &&
-                    (hdr->cmd_status == MFI_STAT_OK) &&
-                    (cmd->scmd->cmnd[0] == INQUIRY)) {
-
-                        if (((*(u8 *) cmd->scmd->request_buffer) & 0x1F) ==
-                            TYPE_DISK) {
-                                cmd->scmd->result = DID_BAD_TARGET << 16;
-                                exception = 1;
-                        }
-                }
-
         case MFI_CMD_LD_READ:
         case MFI_CMD_LD_WRITE: