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authorMax Gurtovoy <maxg@mellanox.com>2019-03-13 20:54:54 +0300
committerJens Axboe <axboe@kernel.dk>2019-03-13 21:05:39 +0300
commitd9d53ed3f77ff4057ce714c0d169c28a653504e7 (patch)
treeb4f350bbaba8fe28160add3d4f141eedf5707c1e /drivers/nvme/host
parent7b7395a3e30a6a0cc91cd2da53d8f18932800cae (diff)
downloadlinux-d9d53ed3f77ff4057ce714c0d169c28a653504e7.tar.xz
nvme: add get-feature to admin cmds tracer
This will print get-feature cmd in more informative way. For example, run "nvme get-feature /dev/nvme0 -n 1 -f 0x9 -c 10" will trace: nvme-3907 [008] .... 1763.635054: nvme_setup_cmd: nvme0: qid=0, cmdid=6, nsid=1, flags=0x0, meta=0x0, cmd=(nvme_admin_get_features fid=0x9 sel=0x0 cdw11=0xa) <idle>-0 [001] d.h. 1763.635112: nvme_sq: nvme0: qid=0, head=27, tail=27 <idle>-0 [008] ..s. 1763.635121: nvme_complete_rq: nvme0: qid=0, cmdid=6, res=10, retries=0, flags=0x2, status=0 Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/nvme/host')
-rw-r--r--drivers/nvme/host/trace.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/nvme/host/trace.c b/drivers/nvme/host/trace.c
index 58456de78bb2..5f24ea7a28eb 100644
--- a/drivers/nvme/host/trace.c
+++ b/drivers/nvme/host/trace.c
@@ -50,7 +50,19 @@ static const char *nvme_trace_admin_identify(struct trace_seq *p, u8 *cdw10)
return ret;
}
+static const char *nvme_trace_admin_get_features(struct trace_seq *p,
+ u8 *cdw10)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+ u8 fid = cdw10[0];
+ u8 sel = cdw10[1] & 0x7;
+ u32 cdw11 = get_unaligned_le32(cdw10 + 4);
+
+ trace_seq_printf(p, "fid=0x%x sel=0x%x cdw11=0x%x", fid, sel, cdw11);
+ trace_seq_putc(p, 0);
+ return ret;
+}
static const char *nvme_trace_read_write(struct trace_seq *p, u8 *cdw10)
{
@@ -101,6 +113,8 @@ const char *nvme_trace_parse_admin_cmd(struct trace_seq *p,
return nvme_trace_create_cq(p, cdw10);
case nvme_admin_identify:
return nvme_trace_admin_identify(p, cdw10);
+ case nvme_admin_get_features:
+ return nvme_trace_admin_get_features(p, cdw10);
default:
return nvme_trace_common(p, cdw10);
}