The ServeRAID driver ( ips ) does not recognize and respond properly to a
Mode Sense - Caching Page request. This causes sd.c to display the message
"sda: got wrong page"
The following patch for creates a valid response to this request.
Signed-off-by: Jack Hammer <jack_hammer@xxxxxxxxxxx>
--- a/drivers/scsi/ips.c Mon Jan 2 22:21:10 2006
+++ b/drivers/scsi/ips.c Thu Jan 12 15:45:42 2006
@@ -3745,6 +3745,7 @@
int device_error;
IPS_DCDB_TABLE_TAPE *tapeDCDB;
int TimeOut;
+ uint8_t cachePageResponse[22];
METHOD_TRACE("ips_send_cmd", 1);
@@ -3949,6 +3950,24 @@
break;
case MODE_SENSE:
+ if ((scb->scsi_cmd->cmnd[2] & 0x3F) == 8) // Caching Page Request
+ {
+ memset(cachePageResponse, 0, sizeof (cachePageResponse));
+ // Bytes 0-3 are the Mode Parameter Header
+ cachePageResponse[0] = 0x15; // Mode Data Length
+ cachePageResponse[1] = 0x00; // Medium Type = Default
+ cachePageResponse[2] = 0x00; // Device Specific Parmeters
+ cachePageResponse[3] = 0x00; // No Block Descriptors
+ // Actual Caching Page Data Starts Here
+ cachePageResponse[4] = 0x08; // Page Code 8 ( Caching Page )
+ cachePageResponse[5] = 0x12; // Page Length
+ cachePageResponse[6] = 0x00; // WCE is OFF !
+
+ ips_scmd_buf_write(scb->scsi_cmd, cachePageResponse, sizeof (cachePageResponse));
+ scb->scsi_cmd->result = DID_OK << 16;
+ break;
+ }
+
scb->cmd.basic_io.op_code = IPS_CMD_ENQUIRY;
scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
scb->cmd.basic_io.segment_4G = 0;
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