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Subject[PATCH 52/71] ncr5380: Remove H_NO macro and introduce dsprintk
Replace all H_NO and some HOSTNO macros (both peculiar to atari_NCR5380.c)
with a new dsprintk macro that's more useful and more consistent. The new
macro avoids a lot of boilerplate in new code in subsequent patches. Keep
NCR5380.c in sync. Remaining HOSTNO macros are removed as side-effects
of subsequent patches.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>

---
drivers/scsi/NCR5380.c | 11 +++++---
drivers/scsi/NCR5380.h | 5 +++
drivers/scsi/atari_NCR5380.c | 57 +++++++++++++++++++++----------------------
3 files changed, 40 insertions(+), 33 deletions(-)

Index: linux/drivers/scsi/NCR5380.h
===================================================================
--- linux.orig/drivers/scsi/NCR5380.h 2015-11-18 19:34:10.000000000 +1100
+++ linux/drivers/scsi/NCR5380.h 2015-11-18 19:34:14.000000000 +1100
@@ -285,6 +285,11 @@ struct NCR5380_hostdata {
do { if ((NDEBUG) & (flg)) \
printk(KERN_DEBUG fmt, ## __VA_ARGS__); } while (0)

+#define dsprintk(flg, host, fmt, ...) \
+ do { if ((NDEBUG) & (flg)) \
+ shost_printk(KERN_DEBUG, host, fmt, ## __VA_ARGS__); \
+ } while (0)
+
#if NDEBUG
#define NCR5380_dprint(flg, arg) \
do { if ((NDEBUG) & (flg)) NCR5380_print(arg); } while (0)
Index: linux/drivers/scsi/atari_NCR5380.c
===================================================================
--- linux.orig/drivers/scsi/atari_NCR5380.c 2015-11-18 19:34:12.000000000 +1100
+++ linux/drivers/scsi/atari_NCR5380.c 2015-11-18 19:34:14.000000000 +1100
@@ -207,7 +207,6 @@
#define NEXTADDR(cmd) ((struct scsi_cmnd **)&(cmd)->host_scribble)

#define HOSTNO instance->host_no
-#define H_NO(cmd) (cmd)->device->host->host_no

static int do_abort(struct Scsi_Host *);
static void do_reset(struct Scsi_Host *);
@@ -280,7 +279,8 @@ static void __init init_tags(struct NCR5
static int is_lun_busy(struct scsi_cmnd *cmd, int should_be_tagged)
{
u8 lun = cmd->device->lun;
- SETUP_HOSTDATA(cmd->device->host);
+ struct Scsi_Host *instance = cmd->device->host;
+ struct NCR5380_hostdata *hostdata = shost_priv(instance);

if (hostdata->busy[cmd->device->id] & (1 << lun))
return 1;
@@ -290,8 +290,8 @@ static int is_lun_busy(struct scsi_cmnd
return 0;
if (hostdata->TagAlloc[scmd_id(cmd)][lun].nr_allocated >=
hostdata->TagAlloc[scmd_id(cmd)][lun].queue_size) {
- dprintk(NDEBUG_TAGS, "scsi%d: target %d lun %d: no free tags\n",
- H_NO(cmd), cmd->device->id, lun);
+ dsprintk(NDEBUG_TAGS, instance, "target %d lun %d: no free tags\n",
+ scmd_id(cmd), lun);
return 1;
}
return 0;
@@ -306,7 +306,8 @@ static int is_lun_busy(struct scsi_cmnd
static void cmd_get_tag(struct scsi_cmnd *cmd, int should_be_tagged)
{
u8 lun = cmd->device->lun;
- SETUP_HOSTDATA(cmd->device->host);
+ struct Scsi_Host *instance = cmd->device->host;
+ struct NCR5380_hostdata *hostdata = shost_priv(instance);

/* If we or the target don't support tagged queuing, allocate the LUN for
* an untagged command.
@@ -316,18 +317,16 @@ static void cmd_get_tag(struct scsi_cmnd
!cmd->device->tagged_supported) {
cmd->tag = TAG_NONE;
hostdata->busy[cmd->device->id] |= (1 << lun);
- dprintk(NDEBUG_TAGS, "scsi%d: target %d lun %d now allocated by untagged "
- "command\n", H_NO(cmd), cmd->device->id, lun);
+ dsprintk(NDEBUG_TAGS, instance, "target %d lun %d now allocated by untagged command\n",
+ scmd_id(cmd), lun);
} else {
struct tag_alloc *ta = &hostdata->TagAlloc[scmd_id(cmd)][lun];

cmd->tag = find_first_zero_bit(ta->allocated, MAX_TAGS);
set_bit(cmd->tag, ta->allocated);
ta->nr_allocated++;
- dprintk(NDEBUG_TAGS, "scsi%d: using tag %d for target %d lun %d "
- "(now %d tags in use)\n",
- H_NO(cmd), cmd->tag, cmd->device->id,
- lun, ta->nr_allocated);
+ dsprintk(NDEBUG_TAGS, instance, "using tag %d for target %d lun %d (%d tags allocated)\n",
+ cmd->tag, scmd_id(cmd), lun, ta->nr_allocated);
}
}

@@ -339,21 +338,22 @@ static void cmd_get_tag(struct scsi_cmnd
static void cmd_free_tag(struct scsi_cmnd *cmd)
{
u8 lun = cmd->device->lun;
- SETUP_HOSTDATA(cmd->device->host);
+ struct Scsi_Host *instance = cmd->device->host;
+ struct NCR5380_hostdata *hostdata = shost_priv(instance);

if (cmd->tag == TAG_NONE) {
hostdata->busy[cmd->device->id] &= ~(1 << lun);
- dprintk(NDEBUG_TAGS, "scsi%d: target %d lun %d untagged cmd finished\n",
- H_NO(cmd), cmd->device->id, lun);
+ dsprintk(NDEBUG_TAGS, instance, "target %d lun %d untagged cmd freed\n",
+ scmd_id(cmd), lun);
} else if (cmd->tag >= MAX_TAGS) {
- printk(KERN_NOTICE "scsi%d: trying to free bad tag %d!\n",
- H_NO(cmd), cmd->tag);
+ shost_printk(KERN_NOTICE, instance,
+ "trying to free bad tag %d!\n", cmd->tag);
} else {
struct tag_alloc *ta = &hostdata->TagAlloc[scmd_id(cmd)][lun];
clear_bit(cmd->tag, ta->allocated);
ta->nr_allocated--;
- dprintk(NDEBUG_TAGS, "scsi%d: freed tag %d for target %d lun %d\n",
- H_NO(cmd), cmd->tag, cmd->device->id, lun);
+ dsprintk(NDEBUG_TAGS, instance, "freed tag %d for target %d lun %d\n",
+ cmd->tag, scmd_id(cmd), lun);
}
}

@@ -812,8 +812,7 @@ static int NCR5380_queue_command(struct
switch (cmd->cmnd[0]) {
case WRITE_6:
case WRITE_10:
- printk(KERN_NOTICE "scsi%d: WRITE attempted with NO_WRITE debugging flag set\n",
- H_NO(cmd));
+ shost_printk(KERN_DEBUG, instance, "WRITE attempted with NDEBUG_NO_WRITE set\n");
cmd->result = (DID_ERROR << 16);
cmd->scsi_done(cmd);
return 0;
@@ -872,8 +871,8 @@ static int NCR5380_queue_command(struct
}
spin_unlock_irqrestore(&hostdata->lock, flags);

- dprintk(NDEBUG_QUEUES, "scsi%d: command added to %s of queue\n", H_NO(cmd),
- (cmd->cmnd[0] == REQUEST_SENSE) ? "head" : "tail");
+ dsprintk(NDEBUG_QUEUES, instance, "command %p added to %s of queue\n",
+ cmd, (cmd->cmnd[0] == REQUEST_SENSE) ? "head" : "tail");

/* Kick off command processing */
queue_work(hostdata->work_q, &hostdata->main_task);
@@ -1319,8 +1318,7 @@ static int NCR5380_select(struct Scsi_Ho
(NCR5380_read(INITIATOR_COMMAND_REG) & ICR_ARBITRATION_LOST)) {
NCR5380_write(MODE_REG, MR_BASE);
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- dprintk(NDEBUG_ARBITRATION, "scsi%d: lost arbitration, deasserting ICR_ASSERT_SEL\n",
- HOSTNO);
+ dsprintk(NDEBUG_ARBITRATION, instance, "arbitration lost, negating SEL\n");
spin_lock_irq(&hostdata->lock);
return -1;
}
@@ -2089,8 +2087,9 @@ static void NCR5380_information_transfer
LIST(cmd,hostdata->issue_queue);
SET_NEXT(cmd, hostdata->issue_queue);
hostdata->issue_queue = (struct scsi_cmnd *) cmd;
- dprintk(NDEBUG_QUEUES, "scsi%d: REQUEST SENSE added to head of "
- "issue queue\n", H_NO(cmd));
+ dsprintk(NDEBUG_QUEUES, instance,
+ "REQUEST SENSE cmd %p added to head of issue queue\n",
+ cmd);
} else {
cmd->scsi_done(cmd);
}
@@ -2756,11 +2755,11 @@ static int NCR5380_bus_reset(struct scsi
*/

if (hostdata->issue_queue)
- dprintk(NDEBUG_ABORT, "scsi%d: reset aborted issued command(s)\n", H_NO(cmd));
+ dsprintk(NDEBUG_ABORT, instance, "reset aborted issued command(s)\n");
if (hostdata->connected)
- dprintk(NDEBUG_ABORT, "scsi%d: reset aborted a connected command\n", H_NO(cmd));
+ dsprintk(NDEBUG_ABORT, instance, "reset aborted a connected command\n");
if (hostdata->disconnected_queue)
- dprintk(NDEBUG_ABORT, "scsi%d: reset aborted disconnected command(s)\n", H_NO(cmd));
+ dsprintk(NDEBUG_ABORT, instance, "reset aborted disconnected command(s)\n");

hostdata->issue_queue = NULL;
hostdata->connected = NULL;
Index: linux/drivers/scsi/NCR5380.c
===================================================================
--- linux.orig/drivers/scsi/NCR5380.c 2015-11-18 19:34:12.000000000 +1100
+++ linux/drivers/scsi/NCR5380.c 2015-11-18 19:34:14.000000000 +1100
@@ -751,7 +751,7 @@ static int NCR5380_queue_command(struct
switch (cmd->cmnd[0]) {
case WRITE_6:
case WRITE_10:
- printk("scsi%d : WRITE attempted with NO_WRITE debugging flag set\n", instance->host_no);
+ shost_printk(KERN_DEBUG, instance, "WRITE attempted with NDEBUG_NO_WRITE set\n");
cmd->result = (DID_ERROR << 16);
cmd->scsi_done(cmd);
return 0;
@@ -786,7 +786,8 @@ static int NCR5380_queue_command(struct
}
spin_unlock_irqrestore(&hostdata->lock, flags);

- dprintk(NDEBUG_QUEUES, "scsi%d : command added to %s of queue\n", instance->host_no, (cmd->cmnd[0] == REQUEST_SENSE) ? "head" : "tail");
+ dsprintk(NDEBUG_QUEUES, instance, "command %p added to %s of queue\n",
+ cmd, (cmd->cmnd[0] == REQUEST_SENSE) ? "head" : "tail");

/* Kick off command processing */
queue_work(hostdata->work_q, &hostdata->main_task);
@@ -1101,7 +1102,7 @@ static int NCR5380_select(struct Scsi_Ho
(NCR5380_read(INITIATOR_COMMAND_REG) & ICR_ARBITRATION_LOST)) {
NCR5380_write(MODE_REG, MR_BASE);
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- dprintk(NDEBUG_ARBITRATION, "scsi%d : lost arbitration, deasserting ICR_ASSERT_SEL\n", instance->host_no);
+ dsprintk(NDEBUG_ARBITRATION, instance, "arbitration lost, negating SEL\n");
spin_lock_irq(&hostdata->lock);
return -1;
}
@@ -1895,7 +1896,9 @@ static void NCR5380_information_transfer
cmd->host_scribble = (unsigned char *)
hostdata->issue_queue;
hostdata->issue_queue = (struct scsi_cmnd *) cmd;
- dprintk(NDEBUG_QUEUES, "scsi%d : REQUEST SENSE added to head of issue queue\n", instance->host_no);
+ dsprintk(NDEBUG_QUEUES, instance,
+ "REQUEST SENSE cmd %p added to head of issue queue\n",
+ cmd);
} else {
cmd->scsi_done(cmd);
}



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