From dea3101e0a5c897d2c9351a7444e139db9f40247 Mon Sep 17 00:00:00 2001 From: Date: Sun, 17 Apr 2005 16:05:31 -0500 Subject: lpfc: add Emulex FC driver version 8.0.28 From: James.Smart@Emulex.Com Modified for kernel import and Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc_scsi.h | 157 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 157 insertions(+) create mode 100644 drivers/scsi/lpfc/lpfc_scsi.h (limited to 'drivers/scsi/lpfc/lpfc_scsi.h') diff --git a/drivers/scsi/lpfc/lpfc_scsi.h b/drivers/scsi/lpfc/lpfc_scsi.h new file mode 100644 index 00000000000..4aafba47628 --- /dev/null +++ b/drivers/scsi/lpfc/lpfc_scsi.h @@ -0,0 +1,157 @@ +/******************************************************************* + * This file is part of the Emulex Linux Device Driver for * + * Enterprise Fibre Channel Host Bus Adapters. * + * Refer to the README file included with this package for * + * driver version and adapter support. * + * Copyright (C) 2004 Emulex Corporation. * + * www.emulex.com * + * * + * This program is free software; you can redistribute it and/or * + * modify it under the terms of the GNU General Public License * + * as published by the Free Software Foundation; either version 2 * + * of the License, or (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details, a copy of which * + * can be found in the file COPYING included with this package. * + *******************************************************************/ + +/* + * $Id: lpfc_scsi.h 1.83 2005/04/07 08:47:43EDT sf_support Exp $ + */ + +struct lpfc_hba; + +#define list_remove_head(list, entry, type, member) \ + if (!list_empty(list)) { \ + entry = list_entry((list)->next, type, member); \ + list_del_init(&entry->member); \ + } + +#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 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 */ + + 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 { + uint32_t fcpLunMsl; /* most significant lun word (32 bits) */ + uint32_t fcpLunLsl; /* least significant lun word (32 bits) */ + /* # of bits to shift lun id to end up in right + * payload word, little endian = 8, big = 16. + */ +#if __BIG_ENDIAN +#define FC_LUN_SHIFT 16 +#define FC_ADDR_MODE_SHIFT 24 +#else /* __LITTLE_ENDIAN */ +#define FC_LUN_SHIFT 8 +#define FC_ADDR_MODE_SHIFT 0 +#endif + + 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[16]; /* SRB cdb field is copied here */ + uint32_t fcpDl; /* Total transfer length */ + +}; + +struct lpfc_scsi_buf { + struct list_head list; + struct scsi_cmnd *pCmd; + struct lpfc_hba *scsi_hba; + struct lpfc_rport_data *rdata; + + uint32_t timeout; + + 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. */ + dma_addr_t nonsg_phys; /* Non scatter-gather physical address. */ + + /* + * data and dma_handle are the kernel virutal 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; + + /* cur_iocbq has phys of the dma-able buffer. + * Iotag is in here + */ + struct lpfc_iocbq cur_iocbq; +}; + +#define LPFC_SCSI_DMA_EXT_SIZE 264 +#define LPFC_BPL_SIZE 1024 + +#define MDAC_DIRECT_CMD 0x22 -- cgit v1.2.3