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author | Jan Glauber <jang@linux.vnet.ibm.com> | 2009-09-22 20:58:39 (GMT) |
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committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-09-22 20:58:42 (GMT) |
commit | 1d7e1500a6acfc89415aa2524e2c475c980ac42a (patch) | |
tree | 6c0fafa3864c2dfa778f7543e4d2d441173225a6 /drivers/s390 | |
parent | 703e5c9993639284bc0a8929b6de362424df7019 (diff) | |
download | linux-fsl-qoriq-1d7e1500a6acfc89415aa2524e2c475c980ac42a.tar.xz |
[S390] qdio: reduce per device debug messages
Even if turned off the debug message overhead is measurable in the hot path.
Reduce the number of debug message calls in do_QDIO and qdio_kick_handler.
Also use hex numbers to save space in the debug entries.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390')
-rw-r--r-- | drivers/s390/cio/qdio_main.c | 30 |
1 files changed, 12 insertions, 18 deletions
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 9aef402..21766c7 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -401,7 +401,7 @@ static void announce_buffer_error(struct qdio_q *q, int count) if ((!q->is_input_q && (q->sbal[q->first_to_check]->element[15].flags & 0xff) == 0x10)) { qdio_perf_stat_inc(&perf_stats.outbound_target_full); - DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "OUTFULL FTC:%3d", + DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "OUTFULL FTC:%02x", q->first_to_check); return; } @@ -418,7 +418,7 @@ static inline void inbound_primed(struct qdio_q *q, int count) { int new; - DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "in prim: %3d", count); + DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "in prim: %02x", count); /* for QEBSM the ACK was already set by EQBS */ if (is_qebsm(q)) { @@ -545,7 +545,7 @@ static inline int qdio_inbound_q_done(struct qdio_q *q) * has (probably) not moved (see qdio_inbound_processing). */ if (get_usecs() > q->u.in.timestamp + QDIO_INPUT_THRESHOLD) { - DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "in done:%3d", + DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "in done:%02x", q->first_to_check); return 1; } else @@ -565,11 +565,10 @@ static void qdio_kick_handler(struct qdio_q *q) if (q->is_input_q) { qdio_perf_stat_inc(&perf_stats.inbound_handler); - DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "kih s:%3d c:%3d", start, count); - } else { - DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "koh: nr:%1d", q->nr); - DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "s:%3d c:%3d", start, count); - } + DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "kih s:%02x c:%02x", start, count); + } else + DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "koh: s:%02x c:%02x", + start, count); q->handler(q->irq_ptr->cdev, q->qdio_error, q->nr, start, count, q->irq_ptr->int_parm); @@ -633,7 +632,7 @@ static int get_outbound_buffer_frontier(struct qdio_q *q) switch (state) { case SLSB_P_OUTPUT_EMPTY: /* the adapter got it */ - DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "out empty:%1d %3d", q->nr, count); + DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "out empty:%1d %02x", q->nr, count); atomic_sub(count, &q->nr_buf_used); q->first_to_check = add_buf(q->first_to_check, count); @@ -1481,10 +1480,9 @@ static int handle_outbound(struct qdio_q *q, unsigned int callflags, get_buf_state(q, prev_buf(bufnr), &state, 0); if (state != SLSB_CU_OUTPUT_PRIMED) rc = qdio_kick_outbound_q(q); - else { - DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "fast-req"); + else qdio_perf_stat_inc(&perf_stats.fast_requeue); - } + out: tasklet_schedule(&q->tasklet); return rc; @@ -1510,12 +1508,8 @@ int do_QDIO(struct ccw_device *cdev, unsigned int callflags, if (!irq_ptr) return -ENODEV; - if (callflags & QDIO_FLAG_SYNC_INPUT) - DBF_DEV_EVENT(DBF_INFO, irq_ptr, "doQDIO input"); - else - DBF_DEV_EVENT(DBF_INFO, irq_ptr, "doQDIO output"); - DBF_DEV_EVENT(DBF_INFO, irq_ptr, "q:%1d flag:%4x", q_nr, callflags); - DBF_DEV_EVENT(DBF_INFO, irq_ptr, "buf:%2d cnt:%3d", bufnr, count); + DBF_DEV_EVENT(DBF_INFO, irq_ptr, + "do%02x b:%02x c:%02x", callflags, bufnr, count); if (irq_ptr->state != QDIO_IRQ_STATE_ACTIVE) return -EBUSY; |