From 040cd23242413a8bd2a49b6de1ee320ce392a46d Mon Sep 17 00:00:00 2001 From: Boaz Harrosh Date: Thu, 16 Aug 2007 13:01:05 +0300 Subject: [SCSI] nsp_cs: convert to data accessors and !use_sg cleanup - use scsi data accessors - cleanup !use_sg code paths - TODO: use next_sg() for Jens's sglist branch. Look for 2 places with "SCp.buffer++" Signed-off-by: Boaz Harrosh Signed-off-by: James Bottomley --- drivers/scsi/pcmcia/nsp_cs.c | 54 ++++++++++++++++++++++++++++---------------- 1 file changed, 34 insertions(+), 20 deletions(-) (limited to 'drivers/scsi/pcmcia') diff --git a/drivers/scsi/pcmcia/nsp_cs.c b/drivers/scsi/pcmcia/nsp_cs.c index a45d89b14147..5082ca3c6876 100644 --- a/drivers/scsi/pcmcia/nsp_cs.c +++ b/drivers/scsi/pcmcia/nsp_cs.c @@ -135,6 +135,11 @@ static nsp_hw_data nsp_data_base; /* attach <-> detect glue */ #define NSP_DEBUG_BUF_LEN 150 +static inline void nsp_inc_resid(struct scsi_cmnd *SCpnt, int residInc) +{ + scsi_set_resid(SCpnt, scsi_get_resid(SCpnt) + residInc); +} + static void nsp_cs_message(const char *func, int line, char *type, char *fmt, ...) { va_list args; @@ -192,8 +197,10 @@ static int nsp_queuecommand(struct scsi_cmnd *SCpnt, #endif nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; - nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "SCpnt=0x%p target=%d lun=%d buff=0x%p bufflen=%d use_sg=%d", - SCpnt, target, SCpnt->device->lun, SCpnt->request_buffer, SCpnt->request_bufflen, SCpnt->use_sg); + nsp_dbg(NSP_DEBUG_QUEUECOMMAND, + "SCpnt=0x%p target=%d lun=%d sglist=0x%p bufflen=%d sg_count=%d", + SCpnt, target, SCpnt->device->lun, scsi_sglist(SCpnt), + scsi_bufflen(SCpnt), scsi_sg_count(SCpnt)); //nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "before CurrentSC=0x%p", data->CurrentSC); SCpnt->scsi_done = done; @@ -225,7 +232,7 @@ static int nsp_queuecommand(struct scsi_cmnd *SCpnt, SCpnt->SCp.have_data_in = IO_UNKNOWN; SCpnt->SCp.sent_command = 0; SCpnt->SCp.phase = PH_UNDETERMINED; - SCpnt->resid = SCpnt->request_bufflen; + scsi_set_resid(SCpnt, scsi_bufflen(SCpnt)); /* setup scratch area SCp.ptr : buffer pointer @@ -233,14 +240,14 @@ static int nsp_queuecommand(struct scsi_cmnd *SCpnt, SCp.buffer : next buffer SCp.buffers_residual : left buffers in list SCp.phase : current state of the command */ - if (SCpnt->use_sg) { - SCpnt->SCp.buffer = (struct scatterlist *) SCpnt->request_buffer; + if (scsi_bufflen(SCpnt)) { + SCpnt->SCp.buffer = scsi_sglist(SCpnt); SCpnt->SCp.ptr = BUFFER_ADDR; SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; - SCpnt->SCp.buffers_residual = SCpnt->use_sg - 1; + SCpnt->SCp.buffers_residual = scsi_sg_count(SCpnt) - 1; } else { - SCpnt->SCp.ptr = (char *) SCpnt->request_buffer; - SCpnt->SCp.this_residual = SCpnt->request_bufflen; + SCpnt->SCp.ptr = NULL; + SCpnt->SCp.this_residual = 0; SCpnt->SCp.buffer = NULL; SCpnt->SCp.buffers_residual = 0; } @@ -721,7 +728,9 @@ static void nsp_pio_read(struct scsi_cmnd *SCpnt) ocount = data->FifoCount; nsp_dbg(NSP_DEBUG_DATA_IO, "in SCpnt=0x%p resid=%d ocount=%d ptr=0x%p this_residual=%d buffers=0x%p nbuf=%d", - SCpnt, SCpnt->resid, ocount, SCpnt->SCp.ptr, SCpnt->SCp.this_residual, SCpnt->SCp.buffer, SCpnt->SCp.buffers_residual); + SCpnt, scsi_get_resid(SCpnt), ocount, SCpnt->SCp.ptr, + SCpnt->SCp.this_residual, SCpnt->SCp.buffer, + SCpnt->SCp.buffers_residual); time_out = 1000; @@ -771,7 +780,7 @@ static void nsp_pio_read(struct scsi_cmnd *SCpnt) return; } - SCpnt->resid -= res; + nsp_inc_resid(SCpnt, -res); SCpnt->SCp.ptr += res; SCpnt->SCp.this_residual -= res; ocount += res; @@ -795,10 +804,12 @@ static void nsp_pio_read(struct scsi_cmnd *SCpnt) if (time_out == 0) { nsp_msg(KERN_DEBUG, "pio read timeout resid=%d this_residual=%d buffers_residual=%d", - SCpnt->resid, SCpnt->SCp.this_residual, SCpnt->SCp.buffers_residual); + scsi_get_resid(SCpnt), SCpnt->SCp.this_residual, + SCpnt->SCp.buffers_residual); } nsp_dbg(NSP_DEBUG_DATA_IO, "read ocount=0x%x", ocount); - nsp_dbg(NSP_DEBUG_DATA_IO, "r cmd=%d resid=0x%x\n", data->CmdId, SCpnt->resid); + nsp_dbg(NSP_DEBUG_DATA_IO, "r cmd=%d resid=0x%x\n", data->CmdId, + scsi_get_resid(SCpnt)); } /* @@ -816,7 +827,9 @@ static void nsp_pio_write(struct scsi_cmnd *SCpnt) ocount = data->FifoCount; nsp_dbg(NSP_DEBUG_DATA_IO, "in fifocount=%d ptr=0x%p this_residual=%d buffers=0x%p nbuf=%d resid=0x%x", - data->FifoCount, SCpnt->SCp.ptr, SCpnt->SCp.this_residual, SCpnt->SCp.buffer, SCpnt->SCp.buffers_residual, SCpnt->resid); + data->FifoCount, SCpnt->SCp.ptr, SCpnt->SCp.this_residual, + SCpnt->SCp.buffer, SCpnt->SCp.buffers_residual, + scsi_get_resid(SCpnt)); time_out = 1000; @@ -830,7 +843,7 @@ static void nsp_pio_write(struct scsi_cmnd *SCpnt) nsp_dbg(NSP_DEBUG_DATA_IO, "phase changed stat=0x%x, res=%d\n", stat, res); /* Put back pointer */ - SCpnt->resid += res; + nsp_inc_resid(SCpnt, res); SCpnt->SCp.ptr -= res; SCpnt->SCp.this_residual += res; ocount -= res; @@ -866,7 +879,7 @@ static void nsp_pio_write(struct scsi_cmnd *SCpnt) break; } - SCpnt->resid -= res; + nsp_inc_resid(SCpnt, -res); SCpnt->SCp.ptr += res; SCpnt->SCp.this_residual -= res; ocount += res; @@ -886,10 +899,12 @@ static void nsp_pio_write(struct scsi_cmnd *SCpnt) data->FifoCount = ocount; if (time_out == 0) { - nsp_msg(KERN_DEBUG, "pio write timeout resid=0x%x", SCpnt->resid); + nsp_msg(KERN_DEBUG, "pio write timeout resid=0x%x", + scsi_get_resid(SCpnt)); } nsp_dbg(NSP_DEBUG_DATA_IO, "write ocount=0x%x", ocount); - nsp_dbg(NSP_DEBUG_DATA_IO, "w cmd=%d resid=0x%x\n", data->CmdId, SCpnt->resid); + nsp_dbg(NSP_DEBUG_DATA_IO, "w cmd=%d resid=0x%x\n", data->CmdId, + scsi_get_resid(SCpnt)); } #undef RFIFO_CRIT #undef WFIFO_CRIT @@ -911,9 +926,8 @@ static int nsp_nexus(struct scsi_cmnd *SCpnt) nsp_index_write(base, SYNCREG, sync->SyncRegister); nsp_index_write(base, ACKWIDTH, sync->AckWidth); - if (SCpnt->use_sg == 0 || - SCpnt->resid % 4 != 0 || - SCpnt->resid <= PAGE_SIZE ) { + if (scsi_get_resid(SCpnt) % 4 != 0 || + scsi_get_resid(SCpnt) <= PAGE_SIZE ) { data->TransferMode = MODE_IO8; } else if (nsp_burst_mode == BURST_MEM32) { data->TransferMode = MODE_MEM32; -- cgit v1.2.2