Initial import

1 files changed, 186 insertions, 0 deletions

diff --git a/drivers/scsi/lpfc/lpfc_scsi.h b/drivers/scsi/lpfc/lpfc_scsi.h
new file mode 100644
index 000000000..474e30cde
--- /dev/null
+++ b/drivers/scsi/lpfc/lpfc_scsi.h
@@ -0,0 +1,186 @@
+/*******************************************************************
+ * This file is part of the Emulex Linux Device Driver for         *
+ * Fibre Channel Host Bus Adapters.                                *
+ * Copyright (C) 2004-2015 Emulex.  All rights reserved.           *
+ * EMULEX and SLI are trademarks of Emulex.                        *
+ * www.emulex.com                                                  *
+ *                                                                 *
+ * This program is free software; you can redistribute it and/or   *
+ * modify it under the terms of version 2 of the GNU General       *
+ * Public License as published by the Free Software Foundation.    *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
+ * more details, a copy of which can be found in the file COPYING  *
+ * included with this package.                                     *
+ *******************************************************************/
+
+#include <asm/byteorder.h>
+
+struct lpfc_hba;
+#define LPFC_FCP_CDB_LEN 16
+
+#define list_remove_head(list, entry, type, member)		\
+	do {							\
+	entry = NULL;						\
+	if (!list_empty(list)) {				\
+		entry = list_entry((list)->next, type, member);	\
+		list_del_init(&entry->member);			\
+	}							\
+	} while(0)
+
+#define list_get_first(list, type, member)			\
+	(list_empty(list)) ? NULL :				\
+	list_entry((list)->next, type, member)
+
+/* per-port data that is allocated in the FC transport for us */
+struct lpfc_rport_data {
+	struct lpfc_nodelist *pnode;	/* Pointer to the node structure. */
+};
+
+struct lpfc_device_id {
+	struct lpfc_name vport_wwpn;
+	struct lpfc_name target_wwpn;
+	uint64_t lun;
+};
+
+struct lpfc_device_data {
+	struct list_head listentry;
+	struct lpfc_rport_data *rport_data;
+	struct lpfc_device_id device_id;
+	bool oas_enabled;
+	bool available;
+};
+
+struct fcp_rsp {
+	uint32_t rspRsvd1;	/* FC Word 0, byte 0:3 */
+	uint32_t rspRsvd2;	/* FC Word 1, byte 0:3 */
+
+	uint8_t rspStatus0;	/* FCP_STATUS byte 0 (reserved) */
+	uint8_t rspStatus1;	/* FCP_STATUS byte 1 (reserved) */
+	uint8_t rspStatus2;	/* FCP_STATUS byte 2 field validity */
+#define RSP_LEN_VALID  0x01	/* bit 0 */
+#define SNS_LEN_VALID  0x02	/* bit 1 */
+#define RESID_OVER     0x04	/* bit 2 */
+#define RESID_UNDER    0x08	/* bit 3 */
+	uint8_t rspStatus3;	/* FCP_STATUS byte 3 SCSI status byte */
+
+	uint32_t rspResId;	/* Residual xfer if residual count field set in
+				   fcpStatus2 */
+	/* Received in Big Endian format */
+	uint32_t rspSnsLen;	/* Length of sense data in fcpSnsInfo */
+	/* Received in Big Endian format */
+	uint32_t rspRspLen;	/* Length of FCP response data in fcpRspInfo */
+	/* Received in Big Endian format */
+
+	uint8_t rspInfo0;	/* FCP_RSP_INFO byte 0 (reserved) */
+	uint8_t rspInfo1;	/* FCP_RSP_INFO byte 1 (reserved) */
+	uint8_t rspInfo2;	/* FCP_RSP_INFO byte 2 (reserved) */
+	uint8_t rspInfo3;	/* FCP_RSP_INFO RSP_CODE byte 3 */
+
+#define RSP_NO_FAILURE       0x00
+#define RSP_DATA_BURST_ERR   0x01
+#define RSP_CMD_FIELD_ERR    0x02
+#define RSP_RO_MISMATCH_ERR  0x03
+#define RSP_TM_NOT_SUPPORTED 0x04	/* Task mgmt function not supported */
+#define RSP_TM_NOT_COMPLETED 0x05	/* Task mgmt function not performed */
+#define RSP_TM_INVALID_LU    0x09	/* Task mgmt function to invalid LU */
+
+	uint32_t rspInfoRsvd;	/* FCP_RSP_INFO bytes 4-7 (reserved) */
+
+	uint8_t rspSnsInfo[128];
+#define SNS_ILLEGAL_REQ 0x05	/* sense key is byte 3 ([2]) */
+#define SNSCOD_BADCMD 0x20	/* sense code is byte 13 ([12]) */
+};
+
+struct fcp_cmnd {
+	struct scsi_lun  fcp_lun;
+
+	uint8_t fcpCntl0;	/* FCP_CNTL byte 0 (reserved) */
+	uint8_t fcpCntl1;	/* FCP_CNTL byte 1 task codes */
+#define  SIMPLE_Q        0x00
+#define  HEAD_OF_Q       0x01
+#define  ORDERED_Q       0x02
+#define  ACA_Q           0x04
+#define  UNTAGGED        0x05
+	uint8_t fcpCntl2;	/* FCP_CTL byte 2 task management codes */
+#define  FCP_ABORT_TASK_SET  0x02	/* Bit 1 */
+#define  FCP_CLEAR_TASK_SET  0x04	/* bit 2 */
+#define  FCP_BUS_RESET       0x08	/* bit 3 */
+#define  FCP_LUN_RESET       0x10	/* bit 4 */
+#define  FCP_TARGET_RESET    0x20	/* bit 5 */
+#define  FCP_CLEAR_ACA       0x40	/* bit 6 */
+#define  FCP_TERMINATE_TASK  0x80	/* bit 7 */
+	uint8_t fcpCntl3;
+#define  WRITE_DATA      0x01	/* Bit 0 */
+#define  READ_DATA       0x02	/* Bit 1 */
+
+	uint8_t fcpCdb[LPFC_FCP_CDB_LEN]; /* SRB cdb field is copied here */
+	uint32_t fcpDl;		/* Total transfer length */
+
+};
+
+struct lpfc_scsicmd_bkt {
+	uint32_t cmd_count;
+};
+
+struct lpfc_scsi_buf {
+	struct list_head list;
+	struct scsi_cmnd *pCmd;
+	struct lpfc_rport_data *rdata;
+
+	uint32_t timeout;
+
+	uint16_t exch_busy;     /* SLI4 hba reported XB on complete WCQE */
+	uint16_t status;	/* From IOCB Word 7- ulpStatus */
+	uint32_t result;	/* From IOCB Word 4. */
+
+	uint32_t   seg_cnt;	/* Number of scatter-gather segments returned by
+				 * dma_map_sg.  The driver needs this for calls
+				 * to dma_unmap_sg. */
+	uint32_t prot_seg_cnt;  /* seg_cnt's counterpart for protection data */
+
+	dma_addr_t nonsg_phys;	/* Non scatter-gather physical address. */
+
+	/*
+	 * data and dma_handle are the kernel virtual and bus address of the
+	 * dma-able buffer containing the fcp_cmd, fcp_rsp and a scatter
+	 * gather bde list that supports the sg_tablesize value.
+	 */
+	void *data;
+	dma_addr_t dma_handle;
+
+	struct fcp_cmnd *fcp_cmnd;
+	struct fcp_rsp *fcp_rsp;
+	struct ulp_bde64 *fcp_bpl;
+
+	dma_addr_t dma_phys_bpl;
+
+	/* cur_iocbq has phys of the dma-able buffer.
+	 * Iotag is in here
+	 */
+	struct lpfc_iocbq cur_iocbq;
+	wait_queue_head_t *waitq;
+	unsigned long start_time;
+
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+	/* Used to restore any changes to protection data for error injection */
+	void *prot_data_segment;
+	uint32_t prot_data;
+	uint32_t prot_data_type;
+#define	LPFC_INJERR_REFTAG	1
+#define	LPFC_INJERR_APPTAG	2
+#define	LPFC_INJERR_GUARD	3
+#endif
+};
+
+#define LPFC_SCSI_DMA_EXT_SIZE 264
+#define LPFC_BPL_SIZE          1024
+#define MDAC_DIRECT_CMD                  0x22
+
+#define FIND_FIRST_OAS_LUN		 0
+#define NO_MORE_OAS_LUN			-1
+#define NOT_OAS_ENABLED_LUN		NO_MORE_OAS_LUN