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e5c0d6ad55
linux/include/trace/events
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Roland Dreier e5c0d6ad55 target: Add tracepoints for SCSI commands being processed 
This patch adds tracepoints to the target code for commands being
received and being completed, which is quite useful for debugging
interactions with initiators. For example, one can do something like the
following to watch commands that are completing unsuccessfully:

    # echo 'scsi_status!=0' > /sys/kernel/debug/tracing/events/target/target_cmd_complete/filter
    # echo 1 > /sys/kernel/debug/tracing/events/target/target_cmd_complete/enable

        <run command that fails>

    # cat /sys/kernel/debug/tracing/trace
         iscsi_trx-0-1902  [003] ...1 990185.810385: target_cmd_complete: iqn.1993-08.org.debian:01:e51ede6aacfd <- LUN 001 status CHECK CONDITION (sense len 18 / 70 00 05 00 00 00 00 0a 00 00 00 00 20 00 00 00 00 00)  0x95 data_length    512  CDB 95 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  (TA:SIMPLE C:00)

(v2: Drop undefined COMPARE_AND_WRITE)

Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-07-07 18:36:44 -07:00
..
9p.h net/9p: Convert net/9p protocol dumps to tracepoints 2011-10-24 11:13:12 -05:00
asoc.h ASoC: dapm: Fix x86_64 build warning. 2012-04-23 13:15:35 +01:00
bcache.h bcache: A block layer cache 2013-03-23 16:11:31 -07:00
block.h Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block 2013-05-08 10:13:35 -07:00
btrfs.h Btrfs: parse parent 0 into correct value in tracepoint 2012-12-16 20:46:18 -05:00
compaction.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
ext3.h userns: Convert ext3 to use kuid/kgid where appropriate 2012-05-15 14:59:27 -07:00
ext4.h ext4: fix fio regression 2013-05-03 02:15:52 -04:00
f2fs.h f2fs: add a tracepoint on f2fs_new_inode 2013-04-29 10:52:01 +09:00
filemap.h mm: trace filemap add and del 2013-04-29 15:54:28 -07:00
gfpflags.h mm: add a __GFP_KMEMCG flag 2012-12-18 15:02:12 -08:00
gpio.h gpio: add trace events for setting direction and value 2011-05-20 00:40:19 -06:00
host1x.h gpu: host1x: Add channel support 2013-04-22 12:32:43 +02:00
irq.h rcu: Use softirq to address performance regression 2011-06-14 15:25:39 -07:00
jbd2.h jbd2: trace when lock_buffer in do_get_write_access takes a long time 2013-04-21 16:47:54 -04:00
jbd.h jbd: Write journal superblock with WRITE_FUA after checkpointing 2012-05-15 23:34:37 +02:00
kmem.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
kvm.h KVM: Extract generic irqchip logic into irqchip.c 2013-04-26 20:27:17 +02:00
lock.h tracing: Factorize lock events in a lock class 2010-05-09 13:45:35 +02:00
mce.h tracing: Fix event alignment: mce:mce_record 2011-03-10 10:34:28 -05:00
migrate.h mm: migrate: Add a tracepoint for migrate_pages 2012-12-11 14:28:35 +00:00
module.h include: replace linux/module.h with "struct module" wherever possible 2011-10-31 19:32:32 -04:00
napi.h napi: Convert trace_napi_poll to TRACE_EVENT 2010-09-07 17:51:01 +02:00
net.h net: tracepoint of net_dev_xmit sees freed skb and causes panic 2011-06-02 14:06:31 -07:00
oom.h mm, oom: change type of oom_score_adj to short 2012-12-11 17:22:27 -08:00
power.h PM / tracing: remove deprecated power trace API 2013-01-26 00:39:12 +01:00
printk.h printk/tracing: rework console tracing 2013-04-29 18:28:13 -07:00
random.h random: add tracepoints for easier debugging and verification 2012-07-14 20:17:48 -04:00
ras.h aerdrv: Trace Event for PCI Express Advanced Error Reporting 2013-01-03 14:31:44 -08:00
rcu.h rcu: Repurpose no-CBs event tracing to future-GP events 2013-03-26 08:04:54 -07:00
regmap.h regmap: async: Add tracepoints for async I/O 2013-03-04 10:28:29 +08:00
regulator.h regulator: Add basic trace facilities 2011-01-12 14:33:00 +00:00
rpm.h device.h: audit and cleanup users in main include dir 2012-03-16 10:38:24 -04:00
sched.h kthread: Prevent unpark race which puts threads on the wrong cpu 2013-04-12 14:18:43 +02:00
scsi.h [SCSI] Include protection operation in SCSI command trace 2011-03-14 18:36:02 -05:00
signal.h tracing: let trace_signal_generate() report more info, kill overflow_fail/lose_info 2012-01-13 18:48:50 +01:00
skb.h tracing: Fix event alignment: skb:kfree_skb 2011-03-10 10:34:31 -05:00
sock.h core: add tracepoints for queueing skb to rcvbuf 2011-06-21 16:06:10 -07:00
sunrpc.h SUNRPC: Adding status trace points 2012-02-06 10:37:53 -05:00
syscalls.h tracing: Allow raw syscall trace events for non privileged users 2010-11-18 14:37:43 +01:00
target.h target: Add tracepoints for SCSI commands being processed 2013-07-07 18:36:44 -07:00
task.h mm, oom: change type of oom_score_adj to short 2012-12-11 17:22:27 -08:00
timer.h Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-05-05 13:23:27 -07:00
udp.h udp: add tracepoints for queueing skb to rcvbuf 2011-06-21 16:06:10 -07:00
vmscan.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
workqueue.h workqueue: rename cpu_workqueue to pool_workqueue 2013-02-13 19:29:12 -08:00
writeback.h writeback: replace custom worker pool implementation with unbound workqueue 2013-04-01 19:08:06 -07:00
xen.h xen/mmu: Use Xen specific TLB flush instead of the generic one. 2012-10-31 12:38:31 -04:00