1 files changed, 53 insertions, 16 deletions

diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 6d2390bf7271..9712afa96963 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -55,6 +55,7 @@
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_tcq.h>
+#include <scsi/scsi_dbg.h>
 #include "megaraid_sas_fusion.h"
 #include "megaraid_sas.h"
 
@@ -2832,24 +2833,64 @@ blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd)
 }
 
 /**
- * megasas_dump_frame -	This function will dump MPT/MFI frame
+ * megasas_dump -	This function will provide hexdump
+ * @ptr:		Pointer starting which memory should be dumped
+ * @size:		Size of memory to be dumped
  */
-static inline void
-megasas_dump_frame(void *mpi_request, int sz)
+inline void
+megasas_dump(void *ptr, int sz)
 {
 	int i;
-	__le32 *mfp = (__le32 *)mpi_request;
+	__le32 *loc = (__le32 *)ptr;
 
-	printk(KERN_INFO "IO request frame:\n\t");
 	for (i = 0; i < sz / sizeof(__le32); i++) {
 		if (i && ((i % 8) == 0))
 			printk("\n\t");
-		printk("%08x ", le32_to_cpu(mfp[i]));
+		printk("%08x ", le32_to_cpu(loc[i]));
 	}
 	printk("\n");
 }
 
 /**
+ * megasas_dump_fusion_io -	This function will print key details
+ *				of SCSI IO
+ * @scmd:			SCSI command pointer of SCSI IO
+ */
+void
+megasas_dump_fusion_io(struct scsi_cmnd *scmd)
+{
+	struct megasas_cmd_fusion *cmd;
+	union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
+	struct megasas_instance *instance;
+
+	cmd = (struct megasas_cmd_fusion *)scmd->SCp.ptr;
+	instance = (struct megasas_instance *)scmd->device->host->hostdata;
+
+	scmd_printk(KERN_INFO, scmd,
+		    "scmd: (0x%p)  retries: 0x%x  allowed: 0x%x\n",
+		    scmd, scmd->retries, scmd->allowed);
+	scsi_print_command(scmd);
+
+	if (cmd) {
+		req_desc = (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)cmd->request_desc;
+		scmd_printk(KERN_INFO, scmd, "Request descriptor details:\n");
+		scmd_printk(KERN_INFO, scmd,
+			    "RequestFlags:0x%x  MSIxIndex:0x%x  SMID:0x%x  LMID:0x%x  DevHandle:0x%x\n",
+			    req_desc->SCSIIO.RequestFlags,
+			    req_desc->SCSIIO.MSIxIndex, req_desc->SCSIIO.SMID,
+			    req_desc->SCSIIO.LMID, req_desc->SCSIIO.DevHandle);
+
+		printk(KERN_INFO "IO request frame:\n");
+		megasas_dump(cmd->io_request,
+			     MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE);
+		printk(KERN_INFO "Chain frame:\n");
+		megasas_dump(cmd->sg_frame,
+			     instance->max_chain_frame_sz);
+	}
+
+}
+
+/**
  * megasas_reset_bus_host -	Bus & host reset handler entry point
  */
 static int megasas_reset_bus_host(struct scsi_cmnd *scmd)
@@ -2860,24 +2901,20 @@ static int megasas_reset_bus_host(struct scsi_cmnd *scmd)
 	instance = (struct megasas_instance *)scmd->device->host->hostdata;
 
 	scmd_printk(KERN_INFO, scmd,
-		"Controller reset is requested due to IO timeout\n"
-		"SCSI command pointer: (%p)\t SCSI host state: %d\t"
-		" SCSI host busy: %d\t FW outstanding: %d\n",
-		scmd, scmd->device->host->shost_state,
+		"OCR is requested due to IO timeout!!\n");
+
+	scmd_printk(KERN_INFO, scmd,
+		"SCSI host state: %d  SCSI host busy: %d  FW outstanding: %d\n",
+		scmd->device->host->shost_state,
 		scsi_host_busy(scmd->device->host),
 		atomic_read(&instance->fw_outstanding));
-
 	/*
 	 * First wait for all commands to complete
 	 */
 	if (instance->adapter_type == MFI_SERIES) {
 		ret = megasas_generic_reset(scmd);
 	} else {
-		struct megasas_cmd_fusion *cmd;
-		cmd = (struct megasas_cmd_fusion *)scmd->SCp.ptr;
-		if (cmd)
-			megasas_dump_frame(cmd->io_request,
-				MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE);
+		megasas_dump_fusion_io(scmd);
 		ret = megasas_reset_fusion(scmd->device->host,
 				SCSIIO_TIMEOUT_OCR);
 	}