From: Finn Thain <fthain@telegraphics.com.au>
To: "James E.J. Bottomley" <JBottomley@odin.com>,
Michael Schmitz <schmitzmic@gmail.com>,
<linux-m68k@vger.kernel.org>, <linux-scsi@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH v2 54/72] ncr5380: Use dsprintk() for queue debugging
Date: Sun, 06 Dec 2015 12:32:20 +1100 [thread overview]
Message-ID: <20151206013140.375520062@telegraphics.com.au> (raw)
In-Reply-To: 20151206013126.995379403@telegraphics.com.au
[-- Attachment #1: ncr5380-use-dsprintk-for-queue-debugging --]
[-- Type: text/plain, Size: 9834 bytes --]
Print the command pointers in the log messages for debugging queue data
structures. The LIST and REMOVE macros can then be removed.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
---
drivers/scsi/NCR5380.c | 36 ++++++++++++++++++++++++------------
drivers/scsi/atari_NCR5380.c | 43 +++++++++++++++++++++++--------------------
2 files changed, 47 insertions(+), 32 deletions(-)
Index: linux/drivers/scsi/atari_NCR5380.c
===================================================================
--- linux.orig/drivers/scsi/atari_NCR5380.c 2015-12-06 12:30:53.000000000 +1100
+++ linux/drivers/scsi/atari_NCR5380.c 2015-12-06 12:30:54.000000000 +1100
@@ -931,10 +931,8 @@ static void NCR5380_main(struct work_str
prev = NULL; tmp; prev = tmp, tmp = NEXT(tmp)) {
u8 lun = tmp->device->lun;
- dprintk(NDEBUG_LISTS,
- "MAIN tmp=%p target=%d busy=%d lun=%d\n",
- tmp, scmd_id(tmp), hostdata->busy[scmd_id(tmp)],
- lun);
+ dsprintk(NDEBUG_QUEUES, instance, "main: tmp=%p target=%d busy=%d lun=%d\n",
+ tmp, scmd_id(tmp), hostdata->busy[scmd_id(tmp)], lun);
/* When we find one, remove it from the issue queue. */
if (
#ifdef SUPPORT_TAGS
@@ -951,6 +949,10 @@ static void NCR5380_main(struct work_str
hostdata->issue_queue = NEXT(tmp);
}
SET_NEXT(tmp, NULL);
+ dsprintk(NDEBUG_MAIN | NDEBUG_QUEUES,
+ instance, "main: removed %p from issue queue %p\n",
+ tmp, prev);
+
hostdata->retain_dma_intr++;
/*
@@ -959,9 +961,6 @@ static void NCR5380_main(struct work_str
* On failure, we must add the command back to the
* issue queue so we can keep trying.
*/
- dprintk(NDEBUG_MAIN, "scsi%d: main(): command for target %d "
- "lun %d removed from issue_queue\n",
- HOSTNO, tmp->device->id, lun);
/*
* REQUEST SENSE commands are issued without tagged
* queueing, even on SCSI-II devices because the
@@ -984,13 +983,14 @@ static void NCR5380_main(struct work_str
LIST(tmp, hostdata->issue_queue);
SET_NEXT(tmp, hostdata->issue_queue);
hostdata->issue_queue = tmp;
+ dsprintk(NDEBUG_MAIN | NDEBUG_QUEUES,
+ instance, "main: select() failed, %p returned to issue queue\n",
+ tmp);
#ifdef SUPPORT_TAGS
cmd_free_tag(tmp);
#endif
hostdata->retain_dma_intr--;
done = 0;
- dprintk(NDEBUG_MAIN, "scsi%d: main(): select() failed, "
- "returned to issue_queue\n", HOSTNO);
}
if (hostdata->connected)
break;
@@ -2012,8 +2012,9 @@ static void NCR5380_information_transfer
case COMMAND_COMPLETE:
/* Accept message by clearing ACK */
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
- dprintk(NDEBUG_QUEUES, "scsi%d: command for target %d, lun %llu "
- "completed\n", HOSTNO, cmd->device->id, cmd->device->lun);
+ dsprintk(NDEBUG_QUEUES, instance,
+ "COMMAND COMPLETE %p target %d lun %llu\n",
+ cmd, scmd_id(cmd), cmd->device->lun);
hostdata->connected = NULL;
#ifdef SUPPORT_TAGS
@@ -2062,13 +2063,11 @@ static void NCR5380_information_transfer
(status_byte(cmd->SCp.Status) == CHECK_CONDITION)) {
scsi_eh_prep_cmnd(cmd, &hostdata->ses, NULL, 0, ~0);
- dprintk(NDEBUG_AUTOSENSE, "scsi%d: performing request sense\n", HOSTNO);
-
LIST(cmd,hostdata->issue_queue);
SET_NEXT(cmd, hostdata->issue_queue);
hostdata->issue_queue = (struct scsi_cmnd *) cmd;
- dsprintk(NDEBUG_QUEUES, instance,
- "REQUEST SENSE cmd %p added to head of issue queue\n",
+ dsprintk(NDEBUG_AUTOSENSE | NDEBUG_QUEUES,
+ instance, "REQUEST SENSE cmd %p added to head of issue queue\n",
cmd);
} else {
cmd->scsi_done(cmd);
@@ -2119,10 +2118,10 @@ static void NCR5380_information_transfer
SET_NEXT(cmd, hostdata->disconnected_queue);
hostdata->connected = NULL;
hostdata->disconnected_queue = cmd;
- dprintk(NDEBUG_QUEUES, "scsi%d: command for target %d lun %llu was "
- "moved from connected to the "
- "disconnected_queue\n", HOSTNO,
- cmd->device->id, cmd->device->lun);
+ dsprintk(NDEBUG_INFORMATION | NDEBUG_QUEUES,
+ instance, "connected command %p for target %d lun %llu moved to disconnected queue\n",
+ cmd, scmd_id(cmd), cmd->device->lun);
+
/*
* Restore phase bits to 0 so an interrupted selection,
* arbitration can resume.
@@ -2422,7 +2421,11 @@ static void NCR5380_reselect(struct Scsi
}
}
- if (!tmp) {
+ if (tmp) {
+ dsprintk(NDEBUG_RESELECTION | NDEBUG_QUEUES, instance,
+ "reselect: removed %p from disconnected queue\n", tmp);
+ } else {
+
#ifdef SUPPORT_TAGS
shost_printk(KERN_ERR, instance, "target bitmask 0x%02x lun %d tag %d not in disconnected queue.\n",
target_mask, lun, tag);
Index: linux/drivers/scsi/NCR5380.c
===================================================================
--- linux.orig/drivers/scsi/NCR5380.c 2015-12-06 12:30:53.000000000 +1100
+++ linux/drivers/scsi/NCR5380.c 2015-12-06 12:30:54.000000000 +1100
@@ -823,8 +823,9 @@ static void NCR5380_main(struct work_str
*/
for (tmp = (struct scsi_cmnd *) hostdata->issue_queue, prev = NULL; tmp; prev = tmp, tmp = (struct scsi_cmnd *) tmp->host_scribble)
{
- if (prev != tmp)
- dprintk(NDEBUG_LISTS, "MAIN tmp=%p target=%d busy=%d lun=%llu\n", tmp, tmp->device->id, hostdata->busy[tmp->device->id], tmp->device->lun);
+ dsprintk(NDEBUG_QUEUES, instance, "main: tmp=%p target=%d busy=%d lun=%llu\n",
+ tmp, scmd_id(tmp), hostdata->busy[scmd_id(tmp)],
+ tmp->device->lun);
/* When we find one, remove it from the issue queue. */
if (!(hostdata->busy[tmp->device->id] &
(1 << (u8)(tmp->device->lun & 0xff)))) {
@@ -836,6 +837,9 @@ static void NCR5380_main(struct work_str
hostdata->issue_queue = (struct scsi_cmnd *) tmp->host_scribble;
}
tmp->host_scribble = NULL;
+ dsprintk(NDEBUG_MAIN | NDEBUG_QUEUES,
+ instance, "main: removed %p from issue queue %p\n",
+ tmp, prev);
/*
* Attempt to establish an I_T_L nexus here.
@@ -843,8 +847,6 @@ static void NCR5380_main(struct work_str
* On failure, we must add the command back to the
* issue queue so we can keep trying.
*/
- dprintk(NDEBUG_MAIN|NDEBUG_QUEUES, "scsi%d : main() : command for target %d lun %llu removed from issue_queue\n", instance->host_no, tmp->device->id, tmp->device->lun);
-
/*
* REQUEST SENSE commands are issued without tagged
* queueing, even on SCSI-II devices because the
@@ -859,8 +861,10 @@ static void NCR5380_main(struct work_str
LIST(tmp, hostdata->issue_queue);
tmp->host_scribble = (unsigned char *) hostdata->issue_queue;
hostdata->issue_queue = tmp;
+ dsprintk(NDEBUG_MAIN | NDEBUG_QUEUES,
+ instance, "main: select() failed, %p returned to issue queue\n",
+ tmp);
done = 0;
- dprintk(NDEBUG_MAIN|NDEBUG_QUEUES, "scsi%d : main(): select() failed, returned to issue_queue\n", instance->host_no);
}
if (hostdata->connected)
break;
@@ -1842,8 +1846,11 @@ static void NCR5380_information_transfer
/* Accept message by clearing ACK */
sink = 1;
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
+ dsprintk(NDEBUG_QUEUES, instance,
+ "COMMAND COMPLETE %p target %d lun %llu\n",
+ cmd, scmd_id(cmd), cmd->device->lun);
+
hostdata->connected = NULL;
- dprintk(NDEBUG_QUEUES, "scsi%d : command for target %d, lun %llu completed\n", instance->host_no, cmd->device->id, cmd->device->lun);
hostdata->busy[cmd->device->id] &= ~(1 << (cmd->device->lun & 0xFF));
/*
@@ -1876,14 +1883,12 @@ static void NCR5380_information_transfer
if ((cmd->cmnd[0] != REQUEST_SENSE) && (status_byte(cmd->SCp.Status) == CHECK_CONDITION)) {
scsi_eh_prep_cmnd(cmd, &hostdata->ses, NULL, 0, ~0);
- dprintk(NDEBUG_AUTOSENSE, "scsi%d : performing request sense\n", instance->host_no);
-
LIST(cmd, hostdata->issue_queue);
cmd->host_scribble = (unsigned char *)
hostdata->issue_queue;
hostdata->issue_queue = (struct scsi_cmnd *) cmd;
- dsprintk(NDEBUG_QUEUES, instance,
- "REQUEST SENSE cmd %p added to head of issue queue\n",
+ dsprintk(NDEBUG_AUTOSENSE | NDEBUG_QUEUES,
+ instance, "REQUEST SENSE cmd %p added to head of issue queue\n",
cmd);
} else {
cmd->scsi_done(cmd);
@@ -1920,7 +1925,10 @@ static void NCR5380_information_transfer
hostdata->disconnected_queue;
hostdata->connected = NULL;
hostdata->disconnected_queue = cmd;
- dprintk(NDEBUG_QUEUES, "scsi%d : command for target %d lun %llu was moved from connected to" " the disconnected_queue\n", instance->host_no, cmd->device->id, cmd->device->lun);
+ dsprintk(NDEBUG_INFORMATION | NDEBUG_QUEUES,
+ instance, "connected command %p for target %d lun %llu moved to disconnected queue\n",
+ cmd, scmd_id(cmd), cmd->device->lun);
+
/*
* Restore phase bits to 0 so an interrupted selection,
* arbitration can resume.
@@ -2173,7 +2181,11 @@ static void NCR5380_reselect(struct Scsi
break;
}
}
- if (!tmp) {
+
+ if (tmp) {
+ dsprintk(NDEBUG_RESELECTION | NDEBUG_QUEUES, instance,
+ "reselect: removed %p from disconnected queue\n", tmp);
+ } else {
shost_printk(KERN_ERR, instance, "target bitmask 0x%02x lun %d not in disconnected queue.\n",
target_mask, lun);
/*
next prev parent reply other threads:[~2015-12-06 3:50 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-06 1:31 [PATCH v2 00/72] More fixes, cleanup and modernization for NCR5380 drivers Finn Thain
2015-12-06 1:31 ` [PATCH v2 01/72] atari_scsi: Fix SCSI host ID setting Finn Thain
2015-12-06 1:31 ` [PATCH v2 02/72] ncr5380: Remove redundant static variable initializers Finn Thain
2015-12-06 1:31 ` [PATCH v2 03/72] ncr5380: Eliminate PDEBUG*, TDEBUG* and DTCDEBUG* macros Finn Thain
2015-12-06 1:31 ` [PATCH v2 04/72] ncr5380: Remove more pointless macros Finn Thain
2015-12-06 1:31 ` [PATCH v2 05/72] ncr5380: Remove NCR5380_local_declare and NCR5380_setup macros Finn Thain
2015-12-06 1:31 ` [PATCH v2 06/72] ncr5380: Remove NCR5380_instance_name macro Finn Thain
2015-12-06 1:31 ` [PATCH v2 07/72] ncr5380: Split NCR5380_init() into two functions Finn Thain
2015-12-06 1:31 ` [PATCH v2 08/72] ncr5380: Move NCR53C400-specific code Finn Thain
2015-12-06 1:31 ` [PATCH v2 09/72] atari_NCR5380: Reset bus on driver initialization if required Finn Thain
2015-12-06 1:31 ` [PATCH v2 10/72] atari_NCR5380: Remove RESET_BOOT, CONFIG_ATARI_SCSI_TOSHIBA_DELAY and CONFIG_ATARI_SCSI_RESET_BOOT Finn Thain
2015-12-06 1:31 ` [PATCH v2 11/72] ncr5380: Simplify bus reset handlers Finn Thain
2015-12-06 1:31 ` [PATCH v2 12/72] ncr5380: Remove unused hostdata->aborted flag Finn Thain
2015-12-06 1:31 ` [PATCH v2 13/72] ncr5380: Remove redundant register writes Finn Thain
2015-12-06 1:31 ` [PATCH v2 14/72] ncr5380: Use return instead of goto in NCR5380_select() Finn Thain
2015-12-06 1:31 ` [PATCH v2 15/72] ncr5380: Always escalate bad target time-out " Finn Thain
2015-12-06 1:31 ` [PATCH v2 16/72] ncr5380: Proceed with next command after NCR5380_select() calls scsi_done Finn Thain
2015-12-06 1:31 ` [PATCH v2 17/72] ncr5380: Keep BSY asserted when entering SELECTION phase Finn Thain
2015-12-06 1:31 ` [PATCH v2 18/72] ncr5380: Eliminate USLEEP_WAITLONG delay Finn Thain
2015-12-06 1:31 ` [PATCH v2 19/72] ncr5380: Cleanup bogus {request,release}_region() calls Finn Thain
2015-12-06 1:31 ` [PATCH v2 20/72] ncr5380: Introduce unbound workqueue Finn Thain
2015-12-06 1:31 ` [PATCH v2 21/72] ncr5380: Sleep when polling, if possible Finn Thain
2015-12-06 10:18 ` Geert Uytterhoeven
2015-12-06 22:07 ` Finn Thain
2015-12-06 1:31 ` [PATCH v2 22/72] ncr5380: Eliminate selecting state Finn Thain
2015-12-06 1:31 ` [PATCH v2 23/72] ncr5380: Always retry arbitration and selection Finn Thain
2015-12-06 1:31 ` [PATCH v2 24/72] ncr5380: Implement NCR5380_dma_xfer_len and remove LIMIT_TRANSFERSIZE macro Finn Thain
2015-12-06 1:31 ` [PATCH v2 25/72] ncr5380: Rework disconnect versus poll logic Finn Thain
2015-12-06 1:31 ` [PATCH v2 26/72] ncr5380: Fix NCR5380_transfer_pio() result Finn Thain
2015-12-06 1:31 ` [PATCH v2 27/72] ncr5380: Add missing lock in eh_abort_handler Finn Thain
2015-12-06 1:31 ` [PATCH v2 28/72] ncr5380: Drop DEF_SCSI_QCMD macro Finn Thain
2015-12-06 1:31 ` [PATCH v2 29/72] ncr5380: Remove references to linked commands Finn Thain
2015-12-06 1:31 ` [PATCH v2 30/72] ncr5380: Add missing break after case MESSAGE_REJECT Finn Thain
2015-12-06 1:31 ` [PATCH v2 31/72] ncr5380: Fix !REQ timeout in do_abort() Finn Thain
2015-12-06 1:31 ` [PATCH v2 32/72] ncr5380: Fix bus phase " Finn Thain
2015-12-06 1:31 ` [PATCH v2 33/72] atari_NCR5380: Set do_abort() timeouts Finn Thain
2015-12-06 1:32 ` [PATCH v2 34/72] atari_NCR5380: Use arbitration timeout Finn Thain
2015-12-06 1:32 ` [PATCH v2 35/72] ncr5380: Dont wait for BUS FREE after disconnect Finn Thain
2015-12-06 1:32 ` [PATCH v2 36/72] ncr5380: Use work_struct instead of delayed_work Finn Thain
2015-12-06 1:32 ` [PATCH v2 37/72] ncr5380: Standardize work queueing algorithm Finn Thain
2015-12-06 1:32 ` [PATCH v2 38/72] ncr5380: Remove UNSAFE macro Finn Thain
2015-12-06 1:32 ` [PATCH v2 39/72] ncr5380: Standardize interrupt handling Finn Thain
2015-12-06 1:32 ` [PATCH v2 40/72] ncr5380: Introduce NCR5380_poll_politely2 Finn Thain
2015-12-06 1:32 ` [PATCH v2 41/72] ncr5380: Replace redundant flags with FLAG_NO_DMA_FIXUP Finn Thain
2015-12-06 1:32 ` [PATCH v2 42/72] ncr5380: Replace READ_OVERRUNS macro with FLAG_NO_DMA_FIXUPS Finn Thain
2015-12-06 1:32 ` [PATCH v2 43/72] ncr5380: Standardize reselection handling Finn Thain
2015-12-06 1:32 ` [PATCH v2 44/72] ncr5380: Fix off-by-one bug in extended_msg[] bounds check Finn Thain
2015-12-06 1:32 ` [PATCH v2 45/72] ncr5380: Cleanup #include directives Finn Thain
2015-12-06 1:32 ` [PATCH v2 46/72] ncr5380: Fix NDEBUG_NO_DATAOUT flag Finn Thain
2015-12-06 1:32 ` [PATCH v2 47/72] ncr5380: Fix and cleanup scsi_host_template initializers Finn Thain
2015-12-06 1:32 ` [PATCH v2 48/72] atari_NCR5380: Fix queue_size limit Finn Thain
2015-12-06 1:32 ` [PATCH v2 49/72] ncr5380: Remove redundant ICR_ARBITRATION_LOST test and eliminate FLAG_DTC3181E Finn Thain
2015-12-06 1:32 ` [PATCH v2 50/72] ncr5380: Change instance->host_lock to hostdata->lock Finn Thain
2015-12-06 1:32 ` [PATCH v2 51/72] ncr5380: Remove command list debug code Finn Thain
2015-12-06 1:32 ` [PATCH v2 52/72] ncr5380: Remove H_NO macro and introduce dsprintk Finn Thain
2015-12-06 1:32 ` [PATCH v2 53/72] ncr5380: Use shost_priv helper Finn Thain
2015-12-06 1:32 ` Finn Thain [this message]
2015-12-06 1:32 ` [PATCH v2 55/72] ncr5380: Remove LIST and REMOVE macros Finn Thain
2015-12-06 1:32 ` [PATCH v2 56/72] ncr5380: Remove redundant volatile qualifiers Finn Thain
2015-12-06 1:32 ` [PATCH v2 57/72] ncr5380: Use standard list data structure Finn Thain
2015-12-06 1:32 ` [PATCH v2 58/72] ncr5380: Refactor command completion Finn Thain
2015-12-06 1:32 ` [PATCH v2 59/72] ncr5380: Fix autosense bugs Finn Thain
2015-12-06 1:32 ` [PATCH v2 60/72] ncr5380: Implement new eh_abort_handler Finn Thain
2015-12-06 1:32 ` [PATCH v2 61/72] ncr5380: Fix EH during arbitration and selection Finn Thain
2015-12-06 1:32 ` [PATCH v2 62/72] ncr5380: Implement new eh_bus_reset_handler Finn Thain
2015-12-06 1:32 ` [PATCH v2 63/72] atari_NCR5380: Remove HOSTNO macro from printk() and seq_printf() calls Finn Thain
2015-12-06 1:32 ` [PATCH v2 64/72] atari_NCR5380: Eliminate HOSTNO macro Finn Thain
2015-12-06 1:32 ` [PATCH v2 65/72] atari_scsi, sun3_scsi: Remove global Scsi_Host pointer Finn Thain
2015-12-06 1:32 ` [PATCH v2 66/72] ncr5380: Fix soft lockups Finn Thain
2015-12-06 1:32 ` [PATCH v2 67/72] ncr5380: Cleanup comments Finn Thain
2015-12-06 1:32 ` [PATCH v2 68/72] ncr5380: Fix whitespace issues using regexp Finn Thain
2015-12-06 1:32 ` [PATCH v2 69/72] ncr5380: Merge changes from atari_NCR5380.c Finn Thain
2015-12-06 1:32 ` [PATCH v2 70/72] atari_NCR5380: Merge changes from NCR5380.c Finn Thain
2015-12-06 1:32 ` [PATCH v2 71/72] ncr5380: Cleanup whitespace and parentheses Finn Thain
2015-12-06 1:32 ` [PATCH v2 72/72] ncr5380: Fix pseudo DMA transfers on 53C400 Finn Thain
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