IB/hfi1: Dump pio info for non-user send contexts (937488a8) · Commits · 戴 / test

drivers/infiniband/hw/hfi1/chip_registers.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -935,6 +935,10 @@
		#define SEND_CTXT_CREDIT_CTRL_THRESHOLD_MASK 0x7FFull
		#define SEND_CTXT_CREDIT_CTRL_THRESHOLD_SHIFT 0
		#define SEND_CTXT_CREDIT_CTRL_THRESHOLD_SMASK 0x7FFull
		#define SEND_CTXT_CREDIT_STATUS (TXE + 0x000000100018)
		#define SEND_CTXT_CREDIT_STATUS_CURRENT_FREE_COUNTER_MASK 0x7FFull
		#define SEND_CTXT_CREDIT_STATUS_CURRENT_FREE_COUNTER_SHIFT 32
		#define SEND_CTXT_CREDIT_STATUS_LAST_RETURNED_COUNTER_SMASK 0x7FFull
		#define SEND_CTXT_CREDIT_FORCE (TXE + 0x000000100028)
		#define SEND_CTXT_CREDIT_FORCE_FORCE_RETURN_SMASK 0x1ull
		#define SEND_CTXT_CREDIT_RETURN_ADDR (TXE + 0x000000100020)

drivers/infiniband/hw/hfi1/debugfs.c

+49 −0

Original line number	Diff line number	Diff line
		@@ -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++)

drivers/infiniband/hw/hfi1/pio.c

+25 −0

Original line number	Diff line number	Diff line
		@@ -2137,3 +2137,28 @@ void free_credit_return(struct hfi1_devdata *dd)
		kfree(dd->cr_base);
		dd->cr_base = NULL;
		}

		void seqfile_dump_sci(struct seq_file *s, u32 i,
		struct send_context_info *sci)
		{
		struct send_context *sc = sci->sc;
		u64 reg;

		seq_printf(s, "SCI %u: type %u base %u credits %u\n",
		i, sci->type, sci->base, sci->credits);
		seq_printf(s, " flags 0x%x sw_inx %u hw_ctxt %u grp %u\n",
		sc->flags, sc->sw_index, sc->hw_context, sc->group);
		seq_printf(s, " sr_size %u credits %u sr_head %u sr_tail %u\n",
		sc->sr_size, sc->credits, sc->sr_head, sc->sr_tail);
		seq_printf(s, " fill %lu free %lu fill_wrap %u alloc_free %lu\n",
		sc->fill, sc->free, sc->fill_wrap, sc->alloc_free);
		seq_printf(s, " credit_intr_count %u credit_ctrl 0x%llx\n",
		sc->credit_intr_count, sc->credit_ctrl);
		reg = read_kctxt_csr(sc->dd, sc->hw_context, SC(CREDIT_STATUS));
		seq_printf(s, " *hw_free %llu CurrentFree %llu LastReturned %llu\n",
		(le64_to_cpu(*sc->hw_free) & CR_COUNTER_SMASK) >>
		CR_COUNTER_SHIFT,
		(reg >> SC(CREDIT_STATUS_CURRENT_FREE_COUNTER_SHIFT)) &
		SC(CREDIT_STATUS_CURRENT_FREE_COUNTER_MASK),
		reg & SC(CREDIT_STATUS_LAST_RETURNED_COUNTER_SMASK));
		}

drivers/infiniband/hw/hfi1/pio.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -329,4 +329,7 @@ void seg_pio_copy_start(struct pio_buf *pbuf, u64 pbc,
		void seg_pio_copy_mid(struct pio_buf pbuf, const void from, size_t nbytes);
		void seg_pio_copy_end(struct pio_buf *pbuf);

		void seqfile_dump_sci(struct seq_file *s, u32 i,
		struct send_context_info *sci);

		#endif /* _PIO_H */

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