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| author | Giridhar Malavali <giridhar.malavali@qlogic.com> | 2012-02-09 11:15:36 -0800 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-02-19 08:14:08 -0600 |
| commit | 9ba56b95a588906a65664a9299a9f8ac1a0f6a91 (patch) | |
| tree | 93786c52320c2a7276c99cc4d9b3672ca6e0a50d /drivers/scsi/qla2xxx/qla_def.h | |
| parent | 69e5f1ea61a3e84c03103c6a18ee9cacef4cbb9e (diff) | |
| download | op-kernel-dev-9ba56b95a588906a65664a9299a9f8ac1a0f6a91.zip op-kernel-dev-9ba56b95a588906a65664a9299a9f8ac1a0f6a91.tar.gz | |
[SCSI] qla2xxx: Consolidation of SRB processing.
Rework the structures related to SRB processing to minimize the memory
allocations per I/O and manage resources associated with and completions
from common routines.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_def.h')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_def.h | 44 |
1 files changed, 27 insertions, 17 deletions
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 7b7d829..6704ef8 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -202,20 +202,12 @@ struct sd_dif_tuple { /* * SCSI Request Block */ -typedef struct srb { - atomic_t ref_count; - struct fc_port *fcport; - uint32_t handle; - +struct srb_cmd { struct scsi_cmnd *cmd; /* Linux SCSI command pkt */ - - uint16_t flags; - uint32_t request_sense_length; uint8_t *request_sense_ptr; - void *ctx; -} srb_t; +}; /* * SRB flag definitions @@ -254,10 +246,7 @@ struct srb_iocb { } u; struct timer_list timer; - - void (*done)(srb_t *); - void (*free)(srb_t *); - void (*timeout)(srb_t *); + void (*timeout)(void *); }; /* Values for srb_ctx type */ @@ -268,16 +257,37 @@ struct srb_iocb { #define SRB_CT_CMD 5 #define SRB_ADISC_CMD 6 #define SRB_TM_CMD 7 +#define SRB_SCSI_CMD 8 -struct srb_ctx { +typedef struct srb { + atomic_t ref_count; + struct fc_port *fcport; + uint32_t handle; + uint16_t flags; uint16_t type; char *name; int iocbs; union { - struct srb_iocb *iocb_cmd; + struct srb_iocb iocb_cmd; struct fc_bsg_job *bsg_job; + struct srb_cmd scmd; } u; -}; + void (*done)(void *, void *, int); + void (*free)(void *, void *); +} srb_t; + +#define GET_CMD_SP(sp) (sp->u.scmd.cmd) +#define SET_CMD_SP(sp, cmd) (sp->u.scmd.cmd = cmd) +#define GET_CMD_CTX_SP(sp) (sp->u.scmd.ctx) + +#define GET_CMD_SENSE_LEN(sp) \ + (sp->u.scmd.request_sense_length) +#define SET_CMD_SENSE_LEN(sp, len) \ + (sp->u.scmd.request_sense_length = len) +#define GET_CMD_SENSE_PTR(sp) \ + (sp->u.scmd.request_sense_ptr) +#define SET_CMD_SENSE_PTR(sp, ptr) \ + (sp->u.scmd.request_sense_ptr = ptr) struct msg_echo_lb { dma_addr_t send_dma; |
