*******************************************************************/
/*
- * $Id: lpfc_scsi.h 1.68 2004/11/10 11:40:43EST sf_support Exp $
+ * $Id: lpfc_scsi.h 1.83 2005/04/07 08:47:43EDT sf_support Exp $
*/
-#ifndef _H_LPFC_SCSI
-#define _H_LPFC_SCSI
-
-#include "lpfc_disc.h"
-#include "lpfc_mem.h"
-#include "lpfc_sli.h"
-
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); \
+ }
-struct lpfc_target {
+#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. */
- 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;
+};
+
+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_target *target;
+ struct lpfc_rport_data *rdata;
uint32_t timeout;
* 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;
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 */
git://git.onelab.eu / linux-2.6.git / blobdiff