From: Boaz Harrosh Date: Sun, 29 Jul 2007 19:29:02 +0000 (+0300) Subject: [SCSI] aha152x: use data accessors and !use_sg cleanup X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=2338545aafbecce55bbc651fb3f63ebf7468b6fb;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git [SCSI] aha152x: use data accessors and !use_sg cleanup And finally this is the regular !use_sg cleanup and use of data accessors. Signed-off-by: Boaz Harrosh Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c index cf49ed58476..d30a30786dd 100644 --- a/drivers/scsi/aha152x.c +++ b/drivers/scsi/aha152x.c @@ -322,6 +322,12 @@ static LIST_HEAD(aha152x_host_list); (cmd) ? ((cmd)->device->id & 0x0f) : -1, \ (cmd) ? ((cmd)->device->lun & 0x07) : -1 +static inline void +CMD_INC_RESID(struct scsi_cmnd *cmd, int inc) +{ + scsi_set_resid(cmd, scsi_get_resid(cmd) + inc); +} + #define DELAY_DEFAULT 1000 #if defined(PCMCIA) @@ -975,13 +981,13 @@ static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct completion *complete, #if defined(AHA152X_DEBUG) if (HOSTDATA(shpnt)->debug & debug_queue) { printk(INFO_LEAD "queue: %p; cmd_len=%d pieces=%d size=%u cmnd=", - CMDINFO(SCpnt), SCpnt, SCpnt->cmd_len, SCpnt->use_sg, SCpnt->request_bufflen); + CMDINFO(SCpnt), SCpnt, SCpnt->cmd_len, + scsi_sg_count(SCpnt), scsi_bufflen(SCpnt)); __scsi_print_command(SCpnt->cmnd); } #endif SCpnt->scsi_done = done; - SCpnt->resid = SCpnt->request_bufflen; SCpnt->SCp.phase = not_issued | phase; SCpnt->SCp.Status = 0x1; /* Ilegal status by SCSI standard */ SCpnt->SCp.Message = 0; @@ -1011,30 +1017,24 @@ static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct completion *complete, SCp.buffers_residual : left buffers in list SCp.phase : current state of the command */ - if (phase & (check_condition|resetting)) { + if ((phase & (check_condition|resetting)) || !scsi_sglist(SCpnt)) { if (phase & check_condition) { SCpnt->SCp.ptr = SCpnt->sense_buffer; SCpnt->SCp.this_residual = sizeof(SCpnt->sense_buffer); - SCpnt->resid = sizeof(SCpnt->sense_buffer); + scsi_set_resid(SCpnt, sizeof(SCpnt->sense_buffer)); } else { SCpnt->SCp.ptr = NULL; SCpnt->SCp.this_residual = 0; - SCpnt->resid = 0; + scsi_set_resid(SCpnt, 0); } SCpnt->SCp.buffer = NULL; SCpnt->SCp.buffers_residual = 0; } else { - if (SCpnt->use_sg) { - SCpnt->SCp.buffer = (struct scatterlist *) SCpnt->request_buffer; + scsi_set_resid(SCpnt, scsi_bufflen(SCpnt)); + SCpnt->SCp.buffer = scsi_sglist(SCpnt); SCpnt->SCp.ptr = SG_ADDRESS(SCpnt->SCp.buffer); SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; - SCpnt->SCp.buffers_residual = SCpnt->use_sg - 1; - } else { - SCpnt->SCp.ptr = (char *) SCpnt->request_buffer; - SCpnt->SCp.this_residual = SCpnt->request_bufflen; - SCpnt->SCp.buffer = NULL; - SCpnt->SCp.buffers_residual = 0; - } + SCpnt->SCp.buffers_residual = scsi_sg_count(SCpnt) - 1; } DO_LOCK(flags); @@ -1525,8 +1525,8 @@ static void busfree_run(struct Scsi_Host *shpnt) /* target sent DISCONNECT */ DPRINTK(debug_selection, DEBUG_LEAD "target disconnected at %d/%d\n", CMDINFO(CURRENT_SC), - CURRENT_SC->resid, - CURRENT_SC->request_bufflen); + scsi_get_resid(CURRENT_SC), + scsi_bufflen(CURRENT_SC)); #if defined(AHA152X_STAT) HOSTDATA(shpnt)->disconnections++; #endif @@ -1564,7 +1564,7 @@ static void busfree_run(struct Scsi_Host *shpnt) /* restore old command */ memcpy(cmd->cmnd, sc->aha_orig_cmnd, sizeof(cmd->cmnd)); cmd->cmd_len = sc->aha_orig_cmd_len; - cmd->resid = sc->aha_orig_resid; + scsi_set_resid(cmd, sc->aha_orig_resid); cmd->SCp.Status = SAM_STAT_CHECK_CONDITION; @@ -1594,7 +1594,7 @@ static void busfree_run(struct Scsi_Host *shpnt) memcpy(sc->aha_orig_cmnd, ptr->cmnd, sizeof(ptr->cmnd)); sc->aha_orig_cmd_len = ptr->cmd_len; - sc->aha_orig_resid = ptr->resid; + sc->aha_orig_resid = scsi_get_resid(ptr); ptr->cmnd[0] = REQUEST_SENSE; ptr->cmnd[1] = 0; @@ -2179,7 +2179,8 @@ static void datai_init(struct Scsi_Host *shpnt) DATA_LEN=0; DPRINTK(debug_datai, DEBUG_LEAD "datai_init: request_bufflen=%d resid=%d\n", - CMDINFO(CURRENT_SC), CURRENT_SC->request_bufflen, CURRENT_SC->resid); + CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC), + scsi_get_resid(CURRENT_SC)); } static void datai_run(struct Scsi_Host *shpnt) @@ -2292,11 +2293,12 @@ static void datai_run(struct Scsi_Host *shpnt) static void datai_end(struct Scsi_Host *shpnt) { - CURRENT_SC->resid -= GETSTCNT(); + CMD_INC_RESID(CURRENT_SC, -GETSTCNT()); DPRINTK(debug_datai, DEBUG_LEAD "datai_end: request_bufflen=%d resid=%d stcnt=%d\n", - CMDINFO(CURRENT_SC), CURRENT_SC->request_bufflen, CURRENT_SC->resid, GETSTCNT()); + CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC), + scsi_get_resid(CURRENT_SC), GETSTCNT()); SETPORT(SXFRCTL0, CH1|CLRSTCNT); SETPORT(DMACNTRL0, 0); @@ -2317,11 +2319,12 @@ static void datao_init(struct Scsi_Host *shpnt) SETPORT(SIMODE0, 0); SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE ); - DATA_LEN = CURRENT_SC->resid; + DATA_LEN = scsi_get_resid(CURRENT_SC); DPRINTK(debug_datao, DEBUG_LEAD "datao_init: request_bufflen=%d; resid=%d\n", - CMDINFO(CURRENT_SC), CURRENT_SC->request_bufflen, CURRENT_SC->resid); + CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC), + scsi_get_resid(CURRENT_SC)); } static void datao_run(struct Scsi_Host *shpnt) @@ -2345,7 +2348,7 @@ static void datao_run(struct Scsi_Host *shpnt) SETPORT(DMACNTRL0,WRITE_READ|ENDMA|_8BIT); SETPORT(DATAPORT, *CURRENT_SC->SCp.ptr++); CURRENT_SC->SCp.this_residual--; - CURRENT_SC->resid--; + CMD_INC_RESID(CURRENT_SC, -1); SETPORT(DMACNTRL0,WRITE_READ|ENDMA); } @@ -2354,7 +2357,7 @@ static void datao_run(struct Scsi_Host *shpnt) outsw(DATAPORT, CURRENT_SC->SCp.ptr, data_count); CURRENT_SC->SCp.ptr += 2 * data_count; CURRENT_SC->SCp.this_residual -= 2 * data_count; - CURRENT_SC->resid -= 2 * data_count; + CMD_INC_RESID(CURRENT_SC, -2 * data_count); } if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) { @@ -2380,35 +2383,34 @@ static void datao_run(struct Scsi_Host *shpnt) static void datao_end(struct Scsi_Host *shpnt) { if(TESTLO(DMASTAT, DFIFOEMP)) { - int data_count = (DATA_LEN - CURRENT_SC->resid) - GETSTCNT(); + int data_count = (DATA_LEN - scsi_get_resid(CURRENT_SC)) - + GETSTCNT(); DPRINTK(debug_datao, DEBUG_LEAD "datao: %d bytes to resend (%d written, %d transferred)\n", CMDINFO(CURRENT_SC), data_count, - DATA_LEN-CURRENT_SC->resid, + DATA_LEN - scsi_get_resid(CURRENT_SC), GETSTCNT()); - CURRENT_SC->resid += data_count; + CMD_INC_RESID(CURRENT_SC, data_count); - if(CURRENT_SC->use_sg) { - data_count -= CURRENT_SC->SCp.ptr - SG_ADDRESS(CURRENT_SC->SCp.buffer); - while(data_count>0) { - CURRENT_SC->SCp.buffer--; - CURRENT_SC->SCp.buffers_residual++; - data_count -= CURRENT_SC->SCp.buffer->length; - } - CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer) - data_count; - CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length + data_count; - } else { - CURRENT_SC->SCp.ptr -= data_count; - CURRENT_SC->SCp.this_residual += data_count; + data_count -= CURRENT_SC->SCp.ptr - + SG_ADDRESS(CURRENT_SC->SCp.buffer); + while(data_count>0) { + CURRENT_SC->SCp.buffer--; + CURRENT_SC->SCp.buffers_residual++; + data_count -= CURRENT_SC->SCp.buffer->length; } + CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer) - + data_count; + CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length + + data_count; } DPRINTK(debug_datao, DEBUG_LEAD "datao_end: request_bufflen=%d; resid=%d; stcnt=%d\n", CMDINFO(CURRENT_SC), - CURRENT_SC->request_bufflen, - CURRENT_SC->resid, + scsi_bufflen(CURRENT_SC), + scsi_get_resid(CURRENT_SC), GETSTCNT()); SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT); @@ -2935,7 +2937,7 @@ static void show_command(Scsi_Cmnd *ptr) __scsi_print_command(ptr->cmnd); printk(KERN_DEBUG "); request_bufflen=%d; resid=%d; phase |", - ptr->request_bufflen, ptr->resid); + scsi_bufflen(ptr), scsi_get_resid(ptr)); if (ptr->SCp.phase & not_issued) printk("not issued|"); @@ -3005,7 +3007,8 @@ static int get_command(char *pos, Scsi_Cmnd * ptr) SPRINTF("0x%02x ", ptr->cmnd[i]); SPRINTF("); resid=%d; residual=%d; buffers=%d; phase |", - ptr->resid, ptr->SCp.this_residual, ptr->SCp.buffers_residual); + scsi_get_resid(ptr), ptr->SCp.this_residual, + ptr->SCp.buffers_residual); if (ptr->SCp.phase & not_issued) SPRINTF("not issued|");