X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fscsi%2Flpfc%2Flpfc_scsi.h;h=cdcd2535803f2f7648df3e8e99b6161806f4b551;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=12412c28394a63c1dc9f6fa5c8407f6be86eb916;hpb=87fc8d1bb10cd459024a742c6a10961fefcef18f;p=linux-2.6.git diff --git a/drivers/scsi/lpfc/lpfc_scsi.h b/drivers/scsi/lpfc/lpfc_scsi.h index 12412c283..cdcd25358 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.h +++ b/drivers/scsi/lpfc/lpfc_scsi.h @@ -1,60 +1,117 @@ /******************************************************************* * 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. * + * Fibre Channel Host Bus Adapters. * + * Copyright (C) 2004-2005 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 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. * + * 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. * *******************************************************************/ -/* - * $Id: lpfc_scsi.h 1.68 2004/11/10 11:40:43EST sf_support Exp $ - */ +#include -#ifndef _H_LPFC_SCSI -#define _H_LPFC_SCSI +struct lpfc_hba; -#include "lpfc_disc.h" -#include "lpfc_mem.h" -#include "lpfc_sli.h" +#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_hba; +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 { + 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[16]; /* SRB cdb field is copied here */ + uint32_t fcpDl; /* Total transfer length */ -struct lpfc_target { - struct lpfc_nodelist *pnode; /* Pointer to the node structure. */ - uint16_t scsi_id; - uint32_t qcmdcnt; - uint32_t iodonecnt; - uint32_t errorcnt; - uint32_t slavecnt; -#if defined(FC_TRANS_VER1) || defined(FC_TRANS_265_BLKPATCH) - uint16_t blocked; -#endif -#ifdef FC_TRANS_VER1 - struct scsi_target *starget; /* Pointer to midlayer target - structure. */ -#endif -#if defined(FC_TRANS_265_BLKPATCH) - struct timer_list dev_loss_timer; -#endif }; struct lpfc_scsi_buf { + struct list_head list; struct scsi_cmnd *pCmd; struct lpfc_hba *scsi_hba; - struct lpfc_target *target; + struct lpfc_rport_data *rdata; uint32_t timeout; @@ -66,12 +123,14 @@ struct lpfc_scsi_buf { * to dma_unmap_sg. */ dma_addr_t nonsg_phys; /* Non scatter-gather physical address. */ - /* dma_ext has both virt, phys to dma-able buffer - * which contains fcp_cmd, fcp_rsp and scatter gather list fro upto - * 68 (LPFC_SCSI_BPL_SIZE) BDE entries, - * xfer length, cdb, data direction.... + /* + * 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. */ - struct lpfc_dmabuf dma_ext; + void *data; + dma_addr_t dma_handle; + struct fcp_cmnd *fcp_cmnd; struct fcp_rsp *fcp_rsp; struct ulp_bde64 *fcp_bpl; @@ -82,11 +141,7 @@ struct lpfc_scsi_buf { struct lpfc_iocbq cur_iocbq; }; -#define LPFC_SCSI_INITIAL_BPL_SIZE 4 /* Number of scsi buf BDEs in fcp_bpl */ - #define LPFC_SCSI_DMA_EXT_SIZE 264 #define LPFC_BPL_SIZE 1024 #define MDAC_DIRECT_CMD 0x22 - -#endif /* _H_LPFC_SCSI */