From: Mike Marciniszyn <mike.marciniszyn@xxxxxxxxx>
This patch adds tx_opcode_stats to parallel the
(rx)opcode_stats in the debugfs.
Reviewed-by: Kaike Wan <kaike.wan@xxxxxxxxx>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@xxxxxxxxx>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@xxxxxxxxx>
---
drivers/infiniband/hw/hfi1/debugfs.c | 56 ++++++++++++++++++++++++++++++----
drivers/infiniband/hw/hfi1/hfi.h | 6 ++--
drivers/infiniband/hw/hfi1/init.c | 7 ++++
drivers/infiniband/hw/hfi1/verbs.c | 24 +++++++++++++++
4 files changed, 83 insertions(+), 10 deletions(-)
diff --git a/drivers/infiniband/hw/hfi1/debugfs.c b/drivers/infiniband/hw/hfi1/debugfs.c
index 24128f4..76157cc 100644
--- a/drivers/infiniband/hw/hfi1/debugfs.c
+++ b/drivers/infiniband/hw/hfi1/debugfs.c
@@ -165,6 +165,17 @@ static void _opcode_stats_seq_stop(struct seq_file *s, void *v)
{
}
+static int opcode_stats_show(struct seq_file *s, u8 i, u64 packets, u64 bytes)
+{
+ if (!packets && !bytes)
+ return SEQ_SKIP;
+ seq_printf(s, "%02x %llu/%llu\n", i,
+ (unsigned long long)packets,
+ (unsigned long long)bytes);
+
+ return 0;
+}
+
static int _opcode_stats_seq_show(struct seq_file *s, void *v)
{
loff_t *spos = v;
@@ -182,19 +193,49 @@ static int _opcode_stats_seq_show(struct seq_file *s, void *v)
}
hfi1_rcd_put(rcd);
}
- if (!n_packets && !n_bytes)
- return SEQ_SKIP;
- seq_printf(s, "%02llx %llu/%llu\n", i,
- (unsigned long long)n_packets,
- (unsigned long long)n_bytes);
-
- return 0;
+ return opcode_stats_show(s, i, n_packets, n_bytes);
}
DEBUGFS_SEQ_FILE_OPS(opcode_stats);
DEBUGFS_SEQ_FILE_OPEN(opcode_stats)
DEBUGFS_FILE_OPS(opcode_stats);
+static void *_tx_opcode_stats_seq_start(struct seq_file *s, loff_t *pos)
+{
+ return _opcode_stats_seq_start(s, pos);
+}
+
+static void *_tx_opcode_stats_seq_next(struct seq_file *s, void *v, loff_t *pos)
+{
+ return _opcode_stats_seq_next(s, v, pos);
+}
+
+static void _tx_opcode_stats_seq_stop(struct seq_file *s, void *v)
+{
+}
+
+static int _tx_opcode_stats_seq_show(struct seq_file *s, void *v)
+{
+ loff_t *spos = v;
+ loff_t i = *spos;
+ int j;
+ u64 n_packets = 0, n_bytes = 0;
+ struct hfi1_ibdev *ibd = (struct hfi1_ibdev *)s->private;
+ struct hfi1_devdata *dd = dd_from_dev(ibd);
+
+ for_each_possible_cpu(j) {
+ struct hfi1_opcode_stats_perctx *s =
+ per_cpu_ptr(dd->tx_opstats, j);
+ n_packets += s->stats[i].n_packets;
+ n_bytes += s->stats[i].n_bytes;
+ }
+ return opcode_stats_show(s, i, n_packets, n_bytes);
+}
+
+DEBUGFS_SEQ_FILE_OPS(tx_opcode_stats);
+DEBUGFS_SEQ_FILE_OPEN(tx_opcode_stats)
+DEBUGFS_FILE_OPS(tx_opcode_stats);
+
static void *_ctx_stats_seq_start(struct seq_file *s, loff_t *pos)
{
struct hfi1_ibdev *ibd = (struct hfi1_ibdev *)s->private;
@@ -1363,6 +1404,7 @@ void hfi1_dbg_ibdev_init(struct hfi1_ibdev *ibd)
return;
}
DEBUGFS_SEQ_FILE_CREATE(opcode_stats, ibd->hfi1_ibdev_dbg, ibd);
+ DEBUGFS_SEQ_FILE_CREATE(tx_opcode_stats, ibd->hfi1_ibdev_dbg, ibd);
DEBUGFS_SEQ_FILE_CREATE(ctx_stats, ibd->hfi1_ibdev_dbg, ibd);
DEBUGFS_SEQ_FILE_CREATE(qp_stats, ibd->hfi1_ibdev_dbg, ibd);
DEBUGFS_SEQ_FILE_CREATE(sdes, ibd->hfi1_ibdev_dbg, ibd);
diff --git a/drivers/infiniband/hw/hfi1/hfi.h b/drivers/infiniband/hw/hfi1/hfi.h
index 2f3c830..ac3c8be 100644
--- a/drivers/infiniband/hw/hfi1/hfi.h
+++ b/drivers/infiniband/hw/hfi1/hfi.h
@@ -164,9 +164,7 @@ struct hfi1_ib_stats {
* Below contains all data related to a single context (formerly called port).
*/
-#ifdef CONFIG_DEBUG_FS
struct hfi1_opcode_stats_perctx;
-#endif
struct ctxt_eager_bufs {
ssize_t size; /* total size of eager buffers */
@@ -283,7 +281,7 @@ struct hfi1_ctxtdata {
u64 imask; /* clear interrupt mask */
int ireg; /* clear interrupt register */
unsigned numa_id; /* numa node of this context */
- /* verbs stats per CTX */
+ /* verbs rx_stats per rcd */
struct hfi1_opcode_stats_perctx *opstats;
/* Is ASPM interrupt supported for this context */
@@ -1276,6 +1274,8 @@ struct hfi1_devdata {
/* receive context data */
struct hfi1_ctxtdata **rcd;
u64 __percpu *int_counter;
+ /* verbs tx opcode stats */
+ struct hfi1_opcode_stats_perctx __percpu *tx_opstats;
/* device (not port) flags, basically device capabilities */
u16 flags;
/* Number of physical ports available */
diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c
index 36c8a4a..8c2c432 100644
--- a/drivers/infiniband/hw/hfi1/init.c
+++ b/drivers/infiniband/hw/hfi1/init.c
@@ -1217,6 +1217,7 @@ static void __hfi1_free_devdata(struct kobject *kobj)
free_percpu(dd->int_counter);
free_percpu(dd->rcv_limit);
free_percpu(dd->send_schedule);
+ free_percpu(dd->tx_opstats);
rvt_dealloc_device(&dd->verbs_dev.rdi);
}
@@ -1306,6 +1307,12 @@ struct hfi1_devdata *hfi1_alloc_devdata(struct pci_dev *pdev, size_t extra)
goto bail;
}
+ dd->tx_opstats = alloc_percpu(struct hfi1_opcode_stats_perctx);
+ if (!dd->tx_opstats) {
+ ret = -ENOMEM;
+ goto bail;
+ }
+
kobject_init(&dd->kobj, &hfi1_devdata_type);
return dd;
diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c
index 726c064..60176a5 100644
--- a/drivers/infiniband/hw/hfi1/verbs.c
+++ b/drivers/infiniband/hw/hfi1/verbs.c
@@ -796,6 +796,27 @@ static noinline int build_verbs_ulp_payload(
return ret;
}
+/**
+ * update_tx_opstats - record stats by opcode
+ * @qp; the qp
+ * @ps: transmit packet state
+ * @plen: the plen in dwords
+ *
+ * This is a routine to record the tx opstats after a
+ * packet has been presented to the egress mechanism.
+ */
+static void update_tx_opstats(struct rvt_qp *qp, struct hfi1_pkt_state *ps,
+ u32 plen)
+{
+#ifdef CONFIG_DEBUG_FS
+ struct hfi1_devdata *dd = dd_from_ibdev(qp->ibqp.device);
+ struct hfi1_opcode_stats_perctx *s = get_cpu_ptr(dd->tx_opstats);
+
+ inc_opstats(plen * 4, &s->stats[ps->opcode]);
+ put_cpu_ptr(s);
+#endif
+}
+
/*
* Build the number of DMA descriptors needed to send length bytes of data.
*
@@ -940,6 +961,8 @@ int hfi1_verbs_send_dma(struct rvt_qp *qp, struct hfi1_pkt_state *ps,
goto bail_ecomm;
return ret;
}
+
+ update_tx_opstats(qp, ps, plen);
trace_sdma_output_ibhdr(dd_from_ibdev(qp->ibqp.device),
&ps->s_txreq->phdr.hdr, ib_is_sc5(sc5));
return ret;
@@ -1137,6 +1160,7 @@ int hfi1_verbs_send_pio(struct rvt_qp *qp, struct hfi1_pkt_state *ps,
seg_pio_copy_end(pbuf);
}
+ update_tx_opstats(qp, ps, plen);
trace_pio_output_ibhdr(dd_from_ibdev(qp->ibqp.device),
&ps->s_txreq->phdr.hdr, ib_is_sc5(sc5));
--
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