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authorHannes Reinecke <hare@suse.de>2021-12-21 10:20:31 +0300
committerDamien Le Moal <damien.lemoal@opensource.wdc.com>2022-01-05 13:32:51 +0300
commitc206a389c97c9533971cd05eed69b49f535cc193 (patch)
treee4d579cbfa6e9e5072edfc139661a04c0446bc76 /drivers/ata/sata_nv.c
parentfc914faad67f237528739ec717222a560c97e723 (diff)
downloadlinux-c206a389c97c9533971cd05eed69b49f535cc193.tar.xz
ata: libata: tracepoints for bus-master DMA
Add tracepoints for bus-master DMA and taskfile related functions. That allows us to drop the relevant DPRINTK() calls. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Diffstat (limited to 'drivers/ata/sata_nv.c')
-rw-r--r--drivers/ata/sata_nv.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index 3c70405a0b80..06d381b9764e 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -31,6 +31,7 @@
#include <scsi/scsi_host.h>
#include <scsi/scsi_device.h>
#include <linux/libata.h>
+#include <trace/events/libata.h>
#define DRV_NAME "sata_nv"
#define DRV_VERSION "3.5"
@@ -1434,8 +1435,6 @@ static unsigned int nv_adma_qc_issue(struct ata_queued_cmd *qc)
writew(qc->hw_tag, mmio + NV_ADMA_APPEND);
- DPRINTK("Issued tag %u\n", qc->hw_tag);
-
return 0;
}
@@ -2013,19 +2012,17 @@ static unsigned int nv_swncq_issue_atacmd(struct ata_port *ap,
if (qc == NULL)
return 0;
- DPRINTK("Enter\n");
-
writel((1 << qc->hw_tag), pp->sactive_block);
pp->last_issue_tag = qc->hw_tag;
pp->dhfis_bits &= ~(1 << qc->hw_tag);
pp->dmafis_bits &= ~(1 << qc->hw_tag);
pp->qc_active |= (0x1 << qc->hw_tag);
+ trace_ata_tf_load(ap, &qc->tf);
ap->ops->sff_tf_load(ap, &qc->tf); /* load tf registers */
+ trace_ata_exec_command(ap, &qc->tf, qc->hw_tag);
ap->ops->sff_exec_command(ap, &qc->tf);
- DPRINTK("Issued tag %u\n", qc->hw_tag);
-
return 0;
}
@@ -2037,8 +2034,6 @@ static unsigned int nv_swncq_qc_issue(struct ata_queued_cmd *qc)
if (qc->tf.protocol != ATA_PROT_NCQ)
return ata_bmdma_qc_issue(qc);
- DPRINTK("Enter\n");
-
if (!pp->qc_active)
nv_swncq_issue_atacmd(ap, qc);
else
@@ -2083,6 +2078,7 @@ static int nv_swncq_sdbfis(struct ata_port *ap)
u8 lack_dhfis = 0;
host_stat = ap->ops->bmdma_status(ap);
+ trace_ata_bmdma_status(ap, host_stat);
if (unlikely(host_stat & ATA_DMA_ERR)) {
/* error when transferring data to/from memory */
ata_ehi_clear_desc(ehi);