[PATCH 2/5] IB/ehca: Move high-volume debug output to higher debug levels

Joachim Fenkes
2008-04-21T08:05:49Z

drivers/infiniband/hw/ehca/ehca_irq.c | 2 +-
drivers/infiniband/hw/ehca/ehca_main.c | 14 ++++++--
drivers/infiniband/hw/ehca/ehca_mrmw.c | 16 ++++++----
drivers/infiniband/hw/ehca/ehca_qp.c | 12 ++++----
drivers/infiniband/hw/ehca/ehca_reqs.c | 46 ++++++++++++++---------------
drivers/infiniband/hw/ehca/ehca_uverbs.c | 6 +--
drivers/infiniband/hw/ehca/hcp_if.c | 23 ++++++++-------
7 files changed, 63 insertions(+), 56 deletions(-)

diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c b/drivers/infiniband/hw/ehca/ehca_irq.c
index b5ca94c..ca5eb0c 100644
--- a/drivers/infiniband/hw/ehca/ehca_irq.c
+++ b/drivers/infiniband/hw/ehca/ehca_irq.c
@@ -633,7 +633,7 @@ static inline int find_next_online_cpu(struct ehca_comp_pool *pool)
unsigned long flags;

WARN_ON_ONCE(!in_interrupt());
- if (ehca_debug_level)
+ if (ehca_debug_level >= 3)
ehca_dmp(&cpu_online_map, sizeof(cpumask_t), "");

spin_lock_irqsave(&pool->last_cpu_lock, flags);
diff --git a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/infiniband/hw/ehca/ehca_main.c
index 65b3362..4379bef 100644
--- a/drivers/infiniband/hw/ehca/ehca_main.c
+++ b/drivers/infiniband/hw/ehca/ehca_main.c
@@ -85,8 +85,8 @@ module_param_named(lock_hcalls, ehca_lock_hcalls, bool, S_IRUGO);
MODULE_PARM_DESC(open_aqp1,
"AQP1 on startup (0: no (default), 1: yes)");
MODULE_PARM_DESC(debug_level,
- "debug level"
- " (0: no debug traces (default), 1: with debug traces)");
+ "Amount of debug output (0: none (default), 1: traces, "
+ "2: some dumps, 3: lots)");
MODULE_PARM_DESC(hw_level,
"hardware level"
" (0: autosensing (default), 1: v. 0.20, 2: v. 0.21)");
@@ -275,6 +275,7 @@ static int ehca_sense_attributes(struct ehca_shca *shca)
u64 h_ret;
struct hipz_query_hca *rblock;
struct hipz_query_port *port;
+ const char *loc_code;

static const u32 pgsize_map[] = {
HCA_CAP_MR_PGSIZE_4K, 0x1000,
@@ -283,6 +284,12 @@ static int ehca_sense_attributes(struct ehca_shca *shca)
HCA_CAP_MR_PGSIZE_16M, 0x1000000,
};

+ ehca_gen_dbg("Probing adapter %s...",
+ shca->ofdev->node->full_name);
+ loc_code = of_get_property(shca->ofdev->node, "ibm,loc-code", NULL);
+ if (loc_code)
+ ehca_gen_dbg(" ... location lode=%s", loc_code);
+
rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL);
if (!rblock) {
ehca_gen_err("Cannot allocate rblock memory.");
@@ -567,8 +574,7 @@ static int ehca_destroy_aqp1(struct ehca_sport *sport)

static ssize_t ehca_show_debug_level(struct device_driver *ddp, char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%d\n",
- ehca_debug_level);
+ return snprintf(buf, PAGE_SIZE, "%d\n", ehca_debug_level);
}

static ssize_t ehca_store_debug_level(struct device_driver *ddp,
diff --git a/drivers/infiniband/hw/ehca/ehca_mrmw.c b/drivers/infiniband/hw/ehca/ehca_mrmw.c
index f26997f..46ae4eb 100644
--- a/drivers/infiniband/hw/ehca/ehca_mrmw.c
+++ b/drivers/infiniband/hw/ehca/ehca_mrmw.c
@@ -1794,8 +1794,9 @@ static int ehca_check_kpages_per_ate(struct scatterlist *page_list,
int t;
for (t = start_idx; t <= end_idx; t++) {
u64 pgaddr = page_to_pfn(sg_page(&page_list[t])) << PAGE_SHIFT;
- ehca_gen_dbg("chunk_page=%lx value=%016lx", pgaddr,
- *(u64 *)abs_to_virt(phys_to_abs(pgaddr)));
+ if (ehca_debug_level >= 3)
+ ehca_gen_dbg("chunk_page=%lx value=%016lx", pgaddr,
+ *(u64 *)abs_to_virt(phys_to_abs(pgaddr)));
if (pgaddr - PAGE_SIZE != *prev_pgaddr) {
ehca_gen_err("uncontiguous page found pgaddr=%lx "
"prev_pgaddr=%lx page_list_i=%x",
@@ -1862,10 +1863,13 @@ static int ehca_set_pagebuf_user2(struct ehca_mr_pginfo *pginfo,
pgaddr &
~(pginfo->hwpage_size - 1));
}
- ehca_gen_dbg("kpage=%lx chunk_page=%lx "
- "value=%016lx", *kpage, pgaddr,
- *(u64 *)abs_to_virt(
- phys_to_abs(pgaddr)));
+ if (ehca_debug_level >= 3) {
+ u64 val = *(u64 *)abs_to_virt(
+ phys_to_abs(pgaddr));
+ ehca_gen_dbg("kpage=%lx chunk_page=%lx "
+ "value=%016lx",
+ *kpage, pgaddr, val);
+ }
prev_pgaddr = pgaddr;
i++;
pginfo->kpage_cnt++;
diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c
index 5a653d7..57bef11 100644
--- a/drivers/infiniband/hw/ehca/ehca_qp.c
+++ b/drivers/infiniband/hw/ehca/ehca_qp.c
@@ -966,7 +966,7 @@ static int prepare_sqe_rts(struct ehca_qp *my_qp, struct ehca_shca *shca,
qp_num, bad_send_wqe_p);
/* convert wqe pointer to vadr */
bad_send_wqe_v = abs_to_virt((u64)bad_send_wqe_p);
- if (ehca_debug_level)
+ if (ehca_debug_level >= 2)
ehca_dmp(bad_send_wqe_v, 32, "qp_num=%x bad_wqe", qp_num);
squeue = &my_qp->ipz_squeue;
if (ipz_queue_abs_to_offset(squeue, (u64)bad_send_wqe_p, &q_ofs)) {
@@ -979,7 +979,7 @@ static int prepare_sqe_rts(struct ehca_qp *my_qp, struct ehca_shca *shca,
wqe = (struct ehca_wqe *)ipz_qeit_calc(squeue, q_ofs);
*bad_wqe_cnt = 0;
while (wqe->optype != 0xff && wqe->wqef != 0xff) {
- if (ehca_debug_level)
+ if (ehca_debug_level >= 2)
ehca_dmp(wqe, 32, "qp_num=%x wqe", qp_num);
wqe->nr_of_data_seg = 0; /* suppress data access */
wqe->wqef = WQEF_PURGE; /* WQE to be purged */
@@ -1451,7 +1451,7 @@ static int internal_modify_qp(struct ib_qp *ibqp,
/* no support for max_send/recv_sge yet */
}

- if (ehca_debug_level)
+ if (ehca_debug_level >= 2)
ehca_dmp(mqpcb, 4*70, "qp_num=%x", ibqp->qp_num);

h_ret = hipz_h_modify_qp(shca->ipz_hca_handle,
@@ -1766,7 +1766,7 @@ int ehca_query_qp(struct ib_qp *qp,
if (qp_init_attr)
*qp_init_attr = my_qp->init_attr;

- if (ehca_debug_level)
+ if (ehca_debug_level >= 2)
ehca_dmp(qpcb, 4*70, "qp_num=%x", qp->qp_num);

query_qp_exit1:
@@ -1814,7 +1814,7 @@ int ehca_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
goto modify_srq_exit0;
}

- if (ehca_debug_level)
+ if (ehca_debug_level >= 2)
ehca_dmp(mqpcb, 4*70, "qp_num=%x", my_qp->real_qp_num);

h_ret = hipz_h_modify_qp(shca->ipz_hca_handle, my_qp->ipz_qp_handle,
@@ -1867,7 +1867,7 @@ int ehca_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr)
srq_attr->srq_limit = EHCA_BMASK_GET(
MQPCB_CURR_SRQ_LIMIT, qpcb->curr_srq_limit);

- if (ehca_debug_level)
+ if (ehca_debug_level >= 2)
ehca_dmp(qpcb, 4*70, "qp_num=%x", my_qp->real_qp_num);

query_srq_exit1:
diff --git a/drivers/infiniband/hw/ehca/ehca_reqs.c b/drivers/infiniband/hw/ehca/ehca_reqs.c
index 0b2359e..bbe0436 100644
--- a/drivers/infiniband/hw/ehca/ehca_reqs.c
+++ b/drivers/infiniband/hw/ehca/ehca_reqs.c
@@ -81,7 +81,7 @@ static inline int ehca_write_rwqe(struct ipz_queue *ipz_rqueue,
recv_wr->sg_list[cnt_ds].length;
}

- if (ehca_debug_level) {
+ if (ehca_debug_level >= 3) {
ehca_gen_dbg("RECEIVE WQE written into ipz_rqueue=%p",
ipz_rqueue);
ehca_dmp(wqe_p, 16*(6 + wqe_p->nr_of_data_seg), "recv wqe");
@@ -281,7 +281,7 @@ static inline int ehca_write_swqe(struct ehca_qp *qp,
return -EINVAL;
}

- if (ehca_debug_level) {
+ if (ehca_debug_level >= 3) {
ehca_gen_dbg("SEND WQE written into queue qp=%p ", qp);
ehca_dmp( wqe_p, 16*(6 + wqe_p->nr_of_data_seg), "send wqe");
}
@@ -459,13 +459,14 @@ int ehca_post_send(struct ib_qp *qp,
goto post_send_exit0;
}
wqe_cnt++;
- ehca_dbg(qp->device, "ehca_qp=%p qp_num=%x wqe_cnt=%d",
- my_qp, qp->qp_num, wqe_cnt);
} /* eof for cur_send_wr */

post_send_exit0:
iosync(); /* serialize GAL register access */
hipz_update_sqa(my_qp, wqe_cnt);
+ if (unlikely(ret || ehca_debug_level >= 2))
+ ehca_dbg(qp->device, "ehca_qp=%p qp_num=%x wqe_cnt=%d ret=%i",
+ my_qp, qp->qp_num, wqe_cnt, ret);
my_qp->message_count += wqe_cnt;
spin_unlock_irqrestore(&my_qp->spinlock_s, flags);
return ret;
@@ -525,13 +526,14 @@ static int internal_post_recv(struct ehca_qp *my_qp,
goto post_recv_exit0;
}
wqe_cnt++;
- ehca_dbg(dev, "ehca_qp=%p qp_num=%x wqe_cnt=%d",
- my_qp, my_qp->real_qp_num, wqe_cnt);
} /* eof for cur_recv_wr */

post_recv_exit0:
iosync(); /* serialize GAL register access */
hipz_update_rqa(my_qp, wqe_cnt);
+ if (unlikely(ret || ehca_debug_level >= 2))
+ ehca_dbg(dev, "ehca_qp=%p qp_num=%x wqe_cnt=%d ret=%i",
+ my_qp, my_qp->real_qp_num, wqe_cnt, ret);
spin_unlock_irqrestore(&my_qp->spinlock_r, flags);
return ret;
}
@@ -575,16 +577,17 @@ static inline int ehca_poll_cq_one(struct ib_cq *cq, struct ib_wc *wc)
struct ehca_cq *my_cq = container_of(cq, struct ehca_cq, ib_cq);
struct ehca_cqe *cqe;
struct ehca_qp *my_qp;
- int cqe_count = 0;
+ int cqe_count = 0, is_error;

poll_cq_one_read_cqe:
cqe = (struct ehca_cqe *)
ipz_qeit_get_inc_valid(&my_cq->ipz_queue);
if (!cqe) {
ret = -EAGAIN;
- ehca_dbg(cq->device, "Completion queue is empty ehca_cq=%p "
- "cq_num=%x ret=%i", my_cq, my_cq->cq_number, ret);
- goto poll_cq_one_exit0;
+ if (ehca_debug_level >= 3)
+ ehca_dbg(cq->device, "Completion queue is empty "
+ "my_cq=%p cq_num=%x", my_cq, my_cq->cq_number);
+ goto poll_cq_one_exit0;
}

/* prevents loads being reordered across this point */
@@ -614,7 +617,7 @@ poll_cq_one_read_cqe:
ehca_dbg(cq->device,
"Got CQE with purged bit qp_num=%x src_qp=%x",
cqe->local_qp_number, cqe->remote_qp_number);
- if (ehca_debug_level)
+ if (ehca_debug_level >= 2)
ehca_dmp(cqe, 64, "qp_num=%x src_qp=%x",
cqe->local_qp_number,
cqe->remote_qp_number);
@@ -627,11 +630,13 @@ poll_cq_one_read_cqe:
}
}

- /* tracing cqe */
- if (unlikely(ehca_debug_level)) {
+ is_error = cqe->status & WC_STATUS_ERROR_BIT;
+
+ /* trace error CQEs if debug_level >= 1, trace all CQEs if >= 3 */
+ if (unlikely(ehca_debug_level >= 3 || (ehca_debug_level && is_error))) {
ehca_dbg(cq->device,
- "Received COMPLETION ehca_cq=%p cq_num=%x -----",
- my_cq, my_cq->cq_number);
+ "Received %sCOMPLETION ehca_cq=%p cq_num=%x -----",
+ is_error ? "ERROR " : "", my_cq, my_cq->cq_number);
ehca_dmp(cqe, 64, "ehca_cq=%p cq_num=%x",
my_cq, my_cq->cq_number);
ehca_dbg(cq->device,
@@ -654,8 +659,9 @@ poll_cq_one_read_cqe:
/* update also queue adder to throw away this entry!!! */
goto poll_cq_one_exit0;
}
+
/* eval ib_wc_status */
- if (unlikely(cqe->status & WC_STATUS_ERROR_BIT)) {
+ if (unlikely(is_error)) {
/* complete with errors */
map_ib_wc_status(cqe->status, &wc->status);
wc->vendor_err = wc->status;
@@ -676,14 +682,6 @@ poll_cq_one_read_cqe:
wc->imm_data = cpu_to_be32(cqe->immediate_data);
wc->sl = cqe->service_level;

- if (unlikely(wc->status != IB_WC_SUCCESS))
- ehca_dbg(cq->device,
- "ehca_cq=%p cq_num=%x WARNING unsuccessful cqe "
- "OPType=%x status=%x qp_num=%x src_qp=%x wr_id=%lx "
- "cqe=%p", my_cq, my_cq->cq_number, cqe->optype,
- cqe->status, cqe->local_qp_number,
- cqe->remote_qp_number, cqe->work_request_id, cqe);
-
poll_cq_one_exit0:
if (cqe_count > 0)
hipz_update_feca(my_cq, cqe_count);
diff --git a/drivers/infiniband/hw/ehca/ehca_uverbs.c b/drivers/infiniband/hw/ehca/ehca_uverbs.c
index 1b07f2b..e43ed8f 100644
--- a/drivers/infiniband/hw/ehca/ehca_uverbs.c
+++ b/drivers/infiniband/hw/ehca/ehca_uverbs.c
@@ -211,8 +211,7 @@ static int ehca_mmap_qp(struct vm_area_struct *vma, struct ehca_qp *qp,
break;

case 1: /* qp rqueue_addr */
- ehca_dbg(qp->ib_qp.device, "qp_num=%x rqueue",
- qp->ib_qp.qp_num);
+ ehca_dbg(qp->ib_qp.device, "qp_num=%x rq", qp->ib_qp.qp_num);
ret = ehca_mmap_queue(vma, &qp->ipz_rqueue,
&qp->mm_count_rqueue);
if (unlikely(ret)) {
@@ -224,8 +223,7 @@ static int ehca_mmap_qp(struct vm_area_struct *vma, struct ehca_qp *qp,
break;

case 2: /* qp squeue_addr */
- ehca_dbg(qp->ib_qp.device, "qp_num=%x squeue",
- qp->ib_qp.qp_num);
+ ehca_dbg(qp->ib_qp.device, "qp_num=%x sq", qp->ib_qp.qp_num);
ret = ehca_mmap_queue(vma, &qp->ipz_squeue,
&qp->mm_count_squeue);
if (unlikely(ret)) {
diff --git a/drivers/infiniband/hw/ehca/hcp_if.c b/drivers/infiniband/hw/ehca/hcp_if.c
index 7029aa6..5245e13 100644
--- a/drivers/infiniband/hw/ehca/hcp_if.c
+++ b/drivers/infiniband/hw/ehca/hcp_if.c
@@ -123,8 +123,9 @@ static long ehca_plpar_hcall_norets(unsigned long opcode,
int i, sleep_msecs;
unsigned long flags = 0;

- ehca_gen_dbg("opcode=%lx " HCALL7_REGS_FORMAT,
- opcode, arg1, arg2, arg3, arg4, arg5, arg6, arg7);
+ if (unlikely(ehca_debug_level >= 2))
+ ehca_gen_dbg("opcode=%lx " HCALL7_REGS_FORMAT,
+ opcode, arg1, arg2, arg3, arg4, arg5, arg6, arg7);

for (i = 0; i < 5; i++) {
/* serialize hCalls to work around firmware issue */
@@ -148,7 +149,8 @@ static long ehca_plpar_hcall_norets(unsigned long opcode,
opcode, ret, arg1, arg2, arg3,
arg4, arg5, arg6, arg7);
else
- ehca_gen_dbg("opcode=%lx ret=%li", opcode, ret);
+ if (unlikely(ehca_debug_level >= 2))
+ ehca_gen_dbg("opcode=%lx ret=%li", opcode, ret);

return ret;
}
@@ -172,8 +174,10 @@ static long ehca_plpar_hcall9(unsigned long opcode,
int i, sleep_msecs;
unsigned long flags = 0;

- ehca_gen_dbg("INPUT -- opcode=%lx " HCALL9_REGS_FORMAT, opcode,
- arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9);
+ if (unlikely(ehca_debug_level >= 2))
+ ehca_gen_dbg("INPUT -- opcode=%lx " HCALL9_REGS_FORMAT, opcode,
+ arg1, arg2, arg3, arg4, arg5,
+ arg6, arg7, arg8, arg9);

for (i = 0; i < 5; i++) {
/* serialize hCalls to work around firmware issue */
@@ -201,7 +205,7 @@ static long ehca_plpar_hcall9(unsigned long opcode,
ret, outs[0], outs[1], outs[2], outs[3],
outs[4], outs[5], outs[6], outs[7],
outs[8]);
- } else
+ } else if (unlikely(ehca_debug_level >= 2))
ehca_gen_dbg("OUTPUT -- ret=%li " HCALL9_REGS_FORMAT,
ret, outs[0], outs[1], outs[2], outs[3],
outs[4], outs[5], outs[6], outs[7],
@@ -381,7 +385,7 @@ u64 hipz_h_query_port(const struct ipz_adapter_handle adapter_handle,
r_cb, /* r6 */
0, 0, 0, 0);

- if (ehca_debug_level)
+ if (ehca_debug_level >= 2)
ehca_dmp(query_port_response_block, 64, "response_block");

return ret;
@@ -731,9 +735,6 @@ u64 hipz_h_alloc_resource_mr(const struct ipz_adapter_handle adapter_handle,
u64 ret;
u64 outs[PLPAR_HCALL9_BUFSIZE];

- ehca_gen_dbg("kernel PAGE_SIZE=%x access_ctrl=%016x "
- "vaddr=%lx length=%lx",
- (u32)PAGE_SIZE, access_ctrl, vaddr, length);
ret = ehca_plpar_hcall9(H_ALLOC_RESOURCE, outs,
adapter_handle.handle, /* r4 */
5, /* r5 */
@@ -758,7 +759,7 @@ u64 hipz_h_register_rpage_mr(const struct ipz_adapter_handle adapter_handle,
{
u64 ret;

- if (unlikely(ehca_debug_level >= 2)) {
+ if (unlikely(ehca_debug_level >= 3)) {
if (count > 1) {
u64 *kpage;
int i;
--
1.5.5