forked from Minki/linux
[SCSI] advansys: Move a couple of fields from struct board to struct adv_dvc
board->carrp is a duplicate of asc_dvc->carrier_buf, so cut out the middle-man and assign directly to carrier_buf. Move orig_reqp to adv_dvc too, since it's wide-board specific. Also eliminate an unnecessary BUG_ON (we'll never get there with a NULL carrier_buf, and will crash if we do). The bulk of this patch is rearranging structures so everything's declared in the right order. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Matthew Wilcox
James Bottomley
parent
afbb68c35f
commit
98d41c29a4
@ -983,15 +983,14 @@ typedef struct asc_mc_saved {
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* elements. Allow each command to have at least one ADV_SG_BLOCK structure.
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* This allows about 15 commands to have the maximum 17 ADV_SG_BLOCK
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* structures or 255 scatter-gather elements.
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*
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*/
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#define ADV_TOT_SG_BLOCK ASC_DEF_MAX_HOST_QNG
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/*
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* Define Adv Library required maximum number of scatter-gather
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* elements per request.
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* Define maximum number of scatter-gather elements per request.
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*/
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#define ADV_MAX_SG_LIST 255
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#define NO_OF_SG_PER_BLOCK 15
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/* Number of SG blocks needed. */
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#define ADV_NUM_SG_BLOCK \
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@ -1839,55 +1838,6 @@ typedef struct adv_dvc_cfg {
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struct adv_dvc_var;
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struct adv_scsi_req_q;
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/*
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* Adapter operation variable structure.
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*
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* One structure is required per host adapter.
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*
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* Field naming convention:
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*
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* *_able indicates both whether a feature should be enabled or disabled
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* and whether a device isi capable of the feature. At initialization
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* this field may be set, but later if a device is found to be incapable
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* of the feature, the field is cleared.
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*/
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typedef struct adv_dvc_var {
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AdvPortAddr iop_base; /* I/O port address */
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ushort err_code; /* fatal error code */
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ushort bios_ctrl; /* BIOS control word, EEPROM word 12 */
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ushort wdtr_able; /* try WDTR for a device */
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ushort sdtr_able; /* try SDTR for a device */
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ushort ultra_able; /* try SDTR Ultra speed for a device */
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ushort sdtr_speed1; /* EEPROM SDTR Speed for TID 0-3 */
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ushort sdtr_speed2; /* EEPROM SDTR Speed for TID 4-7 */
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ushort sdtr_speed3; /* EEPROM SDTR Speed for TID 8-11 */
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ushort sdtr_speed4; /* EEPROM SDTR Speed for TID 12-15 */
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ushort tagqng_able; /* try tagged queuing with a device */
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ushort ppr_able; /* PPR message capable per TID bitmask. */
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uchar max_dvc_qng; /* maximum number of tagged commands per device */
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ushort start_motor; /* start motor command allowed */
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uchar scsi_reset_wait; /* delay in seconds after scsi bus reset */
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uchar chip_no; /* should be assigned by caller */
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uchar max_host_qng; /* maximum number of Q'ed command allowed */
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ushort no_scam; /* scam_tolerant of EEPROM */
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struct asc_board *drv_ptr; /* driver pointer to private structure */
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uchar chip_scsi_id; /* chip SCSI target ID */
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uchar chip_type;
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uchar bist_err_code;
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ADV_CARR_T *carrier_buf;
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ADV_CARR_T *carr_freelist; /* Carrier free list. */
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ADV_CARR_T *icq_sp; /* Initiator command queue stopper pointer. */
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ADV_CARR_T *irq_sp; /* Initiator response queue stopper pointer. */
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ushort carr_pending_cnt; /* Count of pending carriers. */
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/*
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* Note: The following fields will not be used after initialization. The
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* driver may discard the buffer after initialization is done.
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*/
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ADV_DVC_CFG *cfg; /* temporary configuration structure */
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} ADV_DVC_VAR;
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#define NO_OF_SG_PER_BLOCK 15
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typedef struct asc_sg_block {
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uchar reserved1;
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uchar reserved2;
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@ -1945,6 +1895,83 @@ typedef struct adv_scsi_req_q {
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uchar pad[2]; /* Pad out to a word boundary. */
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} ADV_SCSI_REQ_Q;
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/*
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* The following two structures are used to process Wide Board requests.
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*
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* The ADV_SCSI_REQ_Q structure in adv_req_t is passed to the Adv Library
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* and microcode with the ADV_SCSI_REQ_Q field 'srb_ptr' pointing to the
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* adv_req_t. The adv_req_t structure 'cmndp' field in turn points to the
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* Mid-Level SCSI request structure.
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*
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* Zero or more ADV_SG_BLOCK are used with each ADV_SCSI_REQ_Q. Each
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* ADV_SG_BLOCK structure holds 15 scatter-gather elements. Under Linux
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* up to 255 scatter-gather elements may be used per request or
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* ADV_SCSI_REQ_Q.
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*
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* Both structures must be 32 byte aligned.
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*/
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typedef struct adv_sgblk {
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ADV_SG_BLOCK sg_block; /* Sgblock structure. */
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uchar align[32]; /* Sgblock structure padding. */
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struct adv_sgblk *next_sgblkp; /* Next scatter-gather structure. */
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} adv_sgblk_t;
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typedef struct adv_req {
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ADV_SCSI_REQ_Q scsi_req_q; /* Adv Library request structure. */
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uchar align[32]; /* Request structure padding. */
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struct scsi_cmnd *cmndp; /* Mid-Level SCSI command pointer. */
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adv_sgblk_t *sgblkp; /* Adv Library scatter-gather pointer. */
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struct adv_req *next_reqp; /* Next Request Structure. */
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} adv_req_t;
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/*
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* Adapter operation variable structure.
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*
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* One structure is required per host adapter.
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*
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* Field naming convention:
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*
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* *_able indicates both whether a feature should be enabled or disabled
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* and whether a device isi capable of the feature. At initialization
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* this field may be set, but later if a device is found to be incapable
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* of the feature, the field is cleared.
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*/
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typedef struct adv_dvc_var {
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AdvPortAddr iop_base; /* I/O port address */
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ushort err_code; /* fatal error code */
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ushort bios_ctrl; /* BIOS control word, EEPROM word 12 */
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ushort wdtr_able; /* try WDTR for a device */
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ushort sdtr_able; /* try SDTR for a device */
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ushort ultra_able; /* try SDTR Ultra speed for a device */
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ushort sdtr_speed1; /* EEPROM SDTR Speed for TID 0-3 */
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ushort sdtr_speed2; /* EEPROM SDTR Speed for TID 4-7 */
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ushort sdtr_speed3; /* EEPROM SDTR Speed for TID 8-11 */
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ushort sdtr_speed4; /* EEPROM SDTR Speed for TID 12-15 */
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ushort tagqng_able; /* try tagged queuing with a device */
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ushort ppr_able; /* PPR message capable per TID bitmask. */
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uchar max_dvc_qng; /* maximum number of tagged commands per device */
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ushort start_motor; /* start motor command allowed */
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uchar scsi_reset_wait; /* delay in seconds after scsi bus reset */
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uchar chip_no; /* should be assigned by caller */
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uchar max_host_qng; /* maximum number of Q'ed command allowed */
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ushort no_scam; /* scam_tolerant of EEPROM */
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struct asc_board *drv_ptr; /* driver pointer to private structure */
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uchar chip_scsi_id; /* chip SCSI target ID */
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uchar chip_type;
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uchar bist_err_code;
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ADV_CARR_T *carrier_buf;
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ADV_CARR_T *carr_freelist; /* Carrier free list. */
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ADV_CARR_T *icq_sp; /* Initiator command queue stopper pointer. */
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ADV_CARR_T *irq_sp; /* Initiator response queue stopper pointer. */
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ushort carr_pending_cnt; /* Count of pending carriers. */
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struct adv_req *orig_reqp; /* adv_req_t memory block. */
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/*
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* Note: The following fields will not be used after initialization. The
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* driver may discard the buffer after initialization is done.
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*/
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ADV_DVC_CFG *cfg; /* temporary configuration structure */
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} ADV_DVC_VAR;
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/*
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* Microcode idle loop commands
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*/
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@ -2361,37 +2388,6 @@ struct asc_stats {
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};
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#endif /* ADVANSYS_STATS */
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/*
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* Adv Library Request Structures
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*
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* The following two structures are used to process Wide Board requests.
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*
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* The ADV_SCSI_REQ_Q structure in adv_req_t is passed to the Adv Library
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* and microcode with the ADV_SCSI_REQ_Q field 'srb_ptr' pointing to the
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* adv_req_t. The adv_req_t structure 'cmndp' field in turn points to the
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* Mid-Level SCSI request structure.
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*
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* Zero or more ADV_SG_BLOCK are used with each ADV_SCSI_REQ_Q. Each
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* ADV_SG_BLOCK structure holds 15 scatter-gather elements. Under Linux
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* up to 255 scatter-gather elements may be used per request or
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* ADV_SCSI_REQ_Q.
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*
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* Both structures must be 32 byte aligned.
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*/
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typedef struct adv_sgblk {
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ADV_SG_BLOCK sg_block; /* Sgblock structure. */
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uchar align[32]; /* Sgblock structure padding. */
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struct adv_sgblk *next_sgblkp; /* Next scatter-gather structure. */
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} adv_sgblk_t;
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typedef struct adv_req {
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ADV_SCSI_REQ_Q scsi_req_q; /* Adv Library request structure. */
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uchar align[32]; /* Request structure padding. */
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struct scsi_cmnd *cmndp; /* Mid-Level SCSI command pointer. */
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adv_sgblk_t *sgblkp; /* Adv Library scatter-gather pointer. */
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struct adv_req *next_reqp; /* Next Request Structure. */
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} adv_req_t;
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/*
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* Structure allocated for each board.
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*
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@ -2437,8 +2433,6 @@ struct asc_board {
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*/
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void __iomem *ioremap_addr; /* I/O Memory remap address. */
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ushort ioport; /* I/O Port address. */
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ADV_CARR_T *carrp; /* ADV_CARR_T memory block. */
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adv_req_t *orig_reqp; /* adv_req_t memory block. */
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adv_req_t *adv_reqp; /* Request structures. */
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adv_sgblk_t *adv_sgblkp; /* Scatter-gather structures. */
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ushort bios_signature; /* BIOS Signature. */
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@ -6518,8 +6512,6 @@ static void AdvBuildCarrierFreelist(struct adv_dvc_var *asc_dvc)
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ADV_SDCNT buf_size;
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ADV_PADDR carr_paddr;
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BUG_ON(!asc_dvc->carrier_buf);
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carrp = (ADV_CARR_T *) ADV_16BALIGN(asc_dvc->carrier_buf);
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asc_dvc->carr_freelist = NULL;
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if (carrp == asc_dvc->carrier_buf) {
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@ -13442,10 +13434,10 @@ static int __devinit advansys_wide_init_chip(struct Scsi_Host *shost)
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* Allocate buffer carrier structures. The total size
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* is about 4 KB, so allocate all at once.
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*/
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board->carrp = kmalloc(ADV_CARRIER_BUFSIZE, GFP_KERNEL);
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ASC_DBG(1, "carrp 0x%p\n", board->carrp);
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adv_dvc->carrier_buf = kmalloc(ADV_CARRIER_BUFSIZE, GFP_KERNEL);
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ASC_DBG(1, "carrier_buf 0x%p\n", adv_dvc->carrier_buf);
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if (!board->carrp)
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if (!adv_dvc->carrier_buf)
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goto kmalloc_failed;
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/*
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@ -13466,7 +13458,7 @@ static int __devinit advansys_wide_init_chip(struct Scsi_Host *shost)
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if (!reqp)
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goto kmalloc_failed;
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board->orig_reqp = reqp;
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adv_dvc->orig_reqp = reqp;
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/*
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* Allocate up to ADV_TOT_SG_BLOCK request structures for
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@ -13490,8 +13482,6 @@ static int __devinit advansys_wide_init_chip(struct Scsi_Host *shost)
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if (!board->adv_sgblkp)
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goto kmalloc_failed;
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adv_dvc->carrier_buf = board->carrp;
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/*
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* Point 'adv_reqp' to the request structures and
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* link them together.
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@ -13529,15 +13519,16 @@ static int __devinit advansys_wide_init_chip(struct Scsi_Host *shost)
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return err_code;
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}
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static void advansys_wide_free_mem(struct asc_board *boardp)
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static void advansys_wide_free_mem(struct asc_board *board)
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{
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kfree(boardp->carrp);
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boardp->carrp = NULL;
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kfree(boardp->orig_reqp);
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boardp->orig_reqp = boardp->adv_reqp = NULL;
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while (boardp->adv_sgblkp) {
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adv_sgblk_t *sgp = boardp->adv_sgblkp;
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boardp->adv_sgblkp = sgp->next_sgblkp;
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struct adv_dvc_var *adv_dvc = &board->dvc_var.adv_dvc_var;
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kfree(adv_dvc->carrier_buf);
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adv_dvc->carrier_buf = NULL;
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kfree(adv_dvc->orig_reqp);
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adv_dvc->orig_reqp = board->adv_reqp = NULL;
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while (board->adv_sgblkp) {
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adv_sgblk_t *sgp = board->adv_sgblkp;
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board->adv_sgblkp = sgp->next_sgblkp;
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kfree(sgp);
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}
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}
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