--- /dev/null
+/*******************************************************************
+ * 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
Code Review / kvmfornfv.git / blobdiff