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| author | Hannes Reinecke <hare@suse.de> | 2021-12-21 10:20:31 +0300 |
|---|---|---|
| committer | Damien Le Moal <damien.lemoal@opensource.wdc.com> | 2022-01-05 13:32:51 +0300 |
| commit | c206a389c97c9533971cd05eed69b49f535cc193 (patch) | |
| tree | e4d579cbfa6e9e5072edfc139661a04c0446bc76 /drivers/ata/libata-trace.c | |
| parent | fc914faad67f237528739ec717222a560c97e723 (diff) | |
| download | linux-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.c | 18 |
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); |