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authorKaike Wan <kaike.wan@intel.com>2018-11-28 10:14:32 -0800
committerJason Gunthorpe <jgg@mellanox.com>2018-12-06 19:49:47 -0700
commit937488a85986faa743d12456970a0cbe83e3b04e (patch)
tree0704a125375a1e2f6e217877095f51cadcc2a418 /drivers/infiniband/hw/hfi1/debugfs.c
parent81fce6291d9999cee692e4118134a8c850b60857 (diff)
IB/hfi1: Dump pio info for non-user send contexts
This patch dumps the pio info for non-user send contexts to assist debugging in the field. Reviewed-by: Mike Marciniczyn <mike.marciniszyn@intel.com> Reviewed-by: Mike Ruhl <michael.j.ruhl@intel.com> Signed-off-by: Kaike Wan <kaike.wan@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/debugfs.c')
-rw-r--r--drivers/infiniband/hw/hfi1/debugfs.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/debugfs.c b/drivers/infiniband/hw/hfi1/debugfs.c
index 9f992ae36c89..0a557795563c 100644
--- a/drivers/infiniband/hw/hfi1/debugfs.c
+++ b/drivers/infiniband/hw/hfi1/debugfs.c
@@ -407,6 +407,54 @@ DEBUGFS_SEQ_FILE_OPS(rcds);
DEBUGFS_SEQ_FILE_OPEN(rcds)
DEBUGFS_FILE_OPS(rcds);
+static void *_pios_seq_start(struct seq_file *s, loff_t *pos)
+{
+ struct hfi1_ibdev *ibd;
+ struct hfi1_devdata *dd;
+
+ ibd = (struct hfi1_ibdev *)s->private;
+ dd = dd_from_dev(ibd);
+ if (!dd->send_contexts || *pos >= dd->num_send_contexts)
+ return NULL;
+ return pos;
+}
+
+static void *_pios_seq_next(struct seq_file *s, void *v, loff_t *pos)
+{
+ struct hfi1_ibdev *ibd = (struct hfi1_ibdev *)s->private;
+ struct hfi1_devdata *dd = dd_from_dev(ibd);
+
+ ++*pos;
+ if (!dd->send_contexts || *pos >= dd->num_send_contexts)
+ return NULL;
+ return pos;
+}
+
+static void _pios_seq_stop(struct seq_file *s, void *v)
+{
+}
+
+static int _pios_seq_show(struct seq_file *s, void *v)
+{
+ struct hfi1_ibdev *ibd = (struct hfi1_ibdev *)s->private;
+ struct hfi1_devdata *dd = dd_from_dev(ibd);
+ struct send_context_info *sci;
+ loff_t *spos = v;
+ loff_t i = *spos;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dd->sc_lock, flags);
+ sci = &dd->send_contexts[i];
+ if (sci && sci->type != SC_USER && sci->allocated && sci->sc)
+ seqfile_dump_sci(s, i, sci);
+ spin_unlock_irqrestore(&dd->sc_lock, flags);
+ return 0;
+}
+
+DEBUGFS_SEQ_FILE_OPS(pios);
+DEBUGFS_SEQ_FILE_OPEN(pios)
+DEBUGFS_FILE_OPS(pios);
+
/* read the per-device counters */
static ssize_t dev_counters_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
@@ -1143,6 +1191,7 @@ void hfi1_dbg_ibdev_init(struct hfi1_ibdev *ibd)
DEBUGFS_SEQ_FILE_CREATE(qp_stats, ibd->hfi1_ibdev_dbg, ibd);
DEBUGFS_SEQ_FILE_CREATE(sdes, ibd->hfi1_ibdev_dbg, ibd);
DEBUGFS_SEQ_FILE_CREATE(rcds, ibd->hfi1_ibdev_dbg, ibd);
+ DEBUGFS_SEQ_FILE_CREATE(pios, ibd->hfi1_ibdev_dbg, ibd);
DEBUGFS_SEQ_FILE_CREATE(sdma_cpu_list, ibd->hfi1_ibdev_dbg, ibd);
/* dev counter files */
for (i = 0; i < ARRAY_SIZE(cntr_ops); i++)