11_libata_debug.patch
As usual, debug messages and error triggers.
Signed-off-by: Tejun Heo <[EMAIL PROTECTED]>
drivers/scsi/ahci.c | 43 +++++++++++++++++++++++++++++++
drivers/scsi/libata-core.c | 9 ++++++
drivers/scsi/sata_sil.c | 61 ++++++++++++++++++++++++++++++++++++++++++++-
include/linux/libata.h | 2 -
4 files changed, 113 insertions(+), 2 deletions(-)
Index: work/drivers/scsi/ahci.c
===================================================================
--- work.orig/drivers/scsi/ahci.c 2005-07-07 22:08:37.000000000 +0900
+++ work/drivers/scsi/ahci.c 2005-07-07 22:08:37.000000000 +0900
@@ -681,11 +681,54 @@ static int ahci_qc_issue(struct ata_queu
struct ata_port *ap = qc->ap;
void *port_mmio = (void *) ap->ioaddr.cmd_addr;
+#if 0
+ if (qc->tag == 3) {
+ struct ahci_port_priv *pp = qc->ap->private_data;
+ int offset = qc->tag * AHCI_CMD_TOTAL;
+ u8 *fis = pp->cmd_tbl + offset;
+ printk("AHCI%u: FAILING %02u %p: %08x %08x %08x %08x %08x\n",
+ ap->id, qc->tag, qc->scsicmd,
+ ((unsigned *)fis)[0], ((unsigned *)fis)[1],
+ ((unsigned *)fis)[2], ((unsigned *)fis)[3],
+ ((unsigned *)fis)[4]);
+ fis[4] = 0xff;
+ fis[5] = 0xff;
+ fis[6] = 0xff;
+ fis[8] = 0xff;
+ fis[9] = 0xff;
+ fis[10] = 0xff;
+ }
+#endif
+
+#if 1
+ {
+ struct ahci_port_priv *pp = qc->ap->private_data;
+ unsigned *fis = pp->cmd_tbl + (qc->tag * AHCI_CMD_TOTAL);
+ printk("AHCI%u: FIS(tag%02u) %p: %08x %08x %08x %08x %08x\n",
+ ap->id, qc->tag, qc->scsicmd,
+ fis[0], fis[1], fis[2], fis[3], fis[4]);
+ if (qc->tf.command == 0xa0) {
+ u8 *p = qc->cdb;
+ printk("AHCI%u: PACKET: %02x %02x %02x %02x %02x %02x
%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
+ ap->id,
+ p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
+ p[8], p[9], p[10], p[11], p[12], p[13], p[14],
p[15]);
+ }
+ }
+#endif
+
if (qc->flags & ATA_QCFLAG_NCQ) {
writel(1 << qc->tag, port_mmio + PORT_SCR_ACT);
readl(port_mmio + PORT_SCR_ACT);
}
+#if 0
+ if (qc->tag == 3) {
+ printk("AHCI: SKIPPING %02u\n", qc->tag);
+ return 0;
+ }
+#endif
+
writel(1 << qc->tag, port_mmio + PORT_CMD_ISSUE);
readl(port_mmio + PORT_CMD_ISSUE); /* flush */
Index: work/drivers/scsi/libata-core.c
===================================================================
--- work.orig/drivers/scsi/libata-core.c 2005-07-07 22:08:37.000000000
+0900
+++ work/drivers/scsi/libata-core.c 2005-07-07 22:08:37.000000000 +0900
@@ -2981,6 +2981,15 @@ static void atapi_request_sense(struct a
cmd->result = SAM_STAT_CHECK_CONDITION;
+#if 1
+ {
+ u8 *p = cmd->sense_buffer;
+ printk("SENSE: %02x %02x %02x %02x %02x %02x %02x %02x %02x
%02x %02x %02x %02x %02x %02x %02x\n",
+ p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
+ p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
+ }
+#endif
+
DPRINTK("EXIT\n");
}
Index: work/include/linux/libata.h
===================================================================
--- work.orig/include/linux/libata.h 2005-07-07 22:08:37.000000000 +0900
+++ work/include/linux/libata.h 2005-07-07 22:08:37.000000000 +0900
@@ -37,7 +37,7 @@
#undef ATA_VERBOSE_DEBUG /* yet more debugging output */
#undef ATA_IRQ_TRAP /* define to ack screaming irqs */
#undef ATA_NDEBUG /* define to disable quick runtime checks */
-#undef ATA_ENABLE_ATAPI /* define to enable ATAPI support */
+#define ATA_ENABLE_ATAPI /* define to enable ATAPI support */
#undef ATA_ENABLE_PATA /* define to enable PATA support in some
* low-level drivers */
#undef ATAPI_ENABLE_DMADIR /* enables ATAPI DMADIR bridge support */
Index: work/drivers/scsi/sata_sil.c
===================================================================
--- work.orig/drivers/scsi/sata_sil.c 2005-07-07 22:08:35.000000000 +0900
+++ work/drivers/scsi/sata_sil.c 2005-07-07 22:08:37.000000000 +0900
@@ -138,6 +138,65 @@ static Scsi_Host_Template sil_sht = {
.ordered_flush = 1,
};
+static int sil_qc_debug_issue(struct ata_queued_cmd *qc)
+{
+#if 1
+ {
+ static unsigned cnt = 0;
+ struct ata_port *ap = qc->ap;
+ struct ata_taskfile *tf = &qc->tf;
+
+ if (tf->command == ATA_CMD_READ_EXT) {
+ if (++cnt % 100 == 0) {
+ printk("SIL%u: FAILING H f=%02x n=%02x l=%02x
m=%02x h=%02x L f=%02x n=%02x l=%02x m=%02x h=%02x C=%02x\n",
+ ap->id, tf->hob_feature, tf->hob_nsect,
+ tf->hob_lbal, tf->hob_lbam, tf->hob_lbah,
+ tf->feature, tf->nsect, tf->lbal,
+ tf->lbam, tf->lbah, tf->command);
+ tf->hob_lbal = 0xff;
+ tf->hob_lbam = 0xff;
+ tf->hob_lbah = 0xff;
+ }
+ }
+ }
+#endif
+
+#if 1
+ {
+ struct ata_port *ap = qc->ap;
+ struct ata_taskfile *tf = &qc->tf;
+ printk("SIL%u: tf %p: H f=%02x n=%02x l=%02x m=%02x h=%02x L
f=%02x n=%02x l=%02x m=%02x h=%02x C=%02x\n",
+ ap->id, qc->scsicmd, tf->hob_feature, tf->hob_nsect,
+ tf->hob_lbal, tf->hob_lbam, tf->hob_lbah, tf->feature,
+ tf->nsect, tf->lbal, tf->lbam, tf->lbah, tf->command);
+
+ if (qc->tf.command == 0xa0) {
+ u8 *p = qc->cdb;
+ printk("SIL%u: PACKET: %02x %02x %02x %02x %02x %02x
%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
+ ap->id,
+ p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
+ p[8], p[9], p[10], p[11], p[12], p[13], p[14],
p[15]);
+ }
+ }
+#endif
+
+#if 0
+ {
+ static unsigned cnt = 0;
+ struct ata_port *ap = qc->ap;
+ struct ata_taskfile *tf = &qc->tf;
+
+ if (tf->command == ATA_CMD_READ_EXT) {
+ if (++cnt % 100 == 0) {
+ printk("SIL%u: skipping...\n", ap->id);
+ return 0;
+ }
+ }
+ }
+#endif
+ return ata_qc_issue_prot(qc);
+}
+
static struct ata_port_operations sil_ops = {
.port_disable = ata_port_disable,
.dev_config = sil_dev_config,
@@ -153,7 +212,7 @@ static struct ata_port_operations sil_op
.bmdma_stop = ata_bmdma_stop,
.bmdma_status = ata_bmdma_status,
.qc_prep = ata_qc_prep,
- .qc_issue = ata_qc_issue_prot,
+ .qc_issue = sil_qc_debug_issue,
.error_handler = ata_error_handler,
.irq_handler = ata_interrupt,
.irq_clear = ata_bmdma_irq_clear,
-
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