And finally this is the regular !use_sg cleanup
and use of accessors.
---
drivers/scsi/aha152x.c | 91 +++++++++++++++++++++++++-----------------------
1 files changed, 47 insertions(+), 44 deletions(-)
diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c
index c2f4823..e1330a4 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);
@@ -1520,8 +1520,8 @@ 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
@@ -1559,7 +1559,7 @@ 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;
@@ -1589,7 +1589,7 @@ 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;
@@ -2174,7 +2174,8 @@ 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)
@@ -2287,11 +2288,12 @@ 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);
@@ -2312,11 +2314,12 @@ 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)
@@ -2340,7 +2343,7 @@ 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);
}
@@ -2349,7 +2352,7 @@ 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) {
@@ -2375,35 +2378,34 @@ 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);
@@ -2930,7 +2932,7 @@ 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|");
@@ -3000,7 +3002,8 @@ 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|");
--
1.5.2.2.249.g45fd
-
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