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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/libata-trace.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/libata-trace.c')
-rw-r--r--drivers/ata/libata-trace.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/ata/libata-trace.c b/drivers/ata/libata-trace.c
index 08e001303a82..8a929e4414dc 100644
--- a/drivers/ata/libata-trace.c
+++ b/drivers/ata/libata-trace.c
@@ -39,6 +39,24 @@ libata_trace_parse_status(struct trace_seq *p, unsigned char status)
}
const char *
+libata_trace_parse_host_stat(struct trace_seq *p, unsigned char host_stat)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+
+ trace_seq_printf(p, "{ ");
+ if (host_stat & ATA_DMA_INTR)
+ trace_seq_printf(p, "INTR ");
+ if (host_stat & ATA_DMA_ERR)
+ trace_seq_printf(p, "ERR ");
+ if (host_stat & ATA_DMA_ACTIVE)
+ trace_seq_printf(p, "ACTIVE ");
+ trace_seq_putc(p, '}');
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+const char *
libata_trace_parse_eh_action(struct trace_seq *p, unsigned int eh_action)
{
const char *ret = trace_seq_buffer_ptr(p);