static int rproc_rsc_table_show()

in remoteproc_debugfs.c [275:357]

• 77 lines of code
• 8 McCabe index (conditional complexity)

static int rproc_rsc_table_show(struct seq_file *seq, void *p)
{
	static const char * const types[] = {"carveout", "devmem", "trace", "vdev"};
	struct rproc *rproc = seq->private;
	struct resource_table *table = rproc->table_ptr;
	struct fw_rsc_carveout *c;
	struct fw_rsc_devmem *d;
	struct fw_rsc_trace *t;
	struct fw_rsc_vdev *v;
	int i, j;

	if (!table) {
		seq_puts(seq, "No resource table found\n");
		return 0;
	}

	for (i = 0; i < table->num; i++) {
		int offset = table->offset[i];
		struct fw_rsc_hdr *hdr = (void *)table + offset;
		void *rsc = (void *)hdr + sizeof(*hdr);

		switch (hdr->type) {
		case RSC_CARVEOUT:
			c = rsc;
			seq_printf(seq, "Entry %d is of type %s\n", i, types[hdr->type]);
			seq_printf(seq, "  Device Address 0x%x\n", c->da);
			seq_printf(seq, "  Physical Address 0x%x\n", c->pa);
			seq_printf(seq, "  Length 0x%x Bytes\n", c->len);
			seq_printf(seq, "  Flags 0x%x\n", c->flags);
			seq_printf(seq, "  Reserved (should be zero) [%d]\n", c->reserved);
			seq_printf(seq, "  Name %s\n\n", c->name);
			break;
		case RSC_DEVMEM:
			d = rsc;
			seq_printf(seq, "Entry %d is of type %s\n", i, types[hdr->type]);
			seq_printf(seq, "  Device Address 0x%x\n", d->da);
			seq_printf(seq, "  Physical Address 0x%x\n", d->pa);
			seq_printf(seq, "  Length 0x%x Bytes\n", d->len);
			seq_printf(seq, "  Flags 0x%x\n", d->flags);
			seq_printf(seq, "  Reserved (should be zero) [%d]\n", d->reserved);
			seq_printf(seq, "  Name %s\n\n", d->name);
			break;
		case RSC_TRACE:
			t = rsc;
			seq_printf(seq, "Entry %d is of type %s\n", i, types[hdr->type]);
			seq_printf(seq, "  Device Address 0x%x\n", t->da);
			seq_printf(seq, "  Length 0x%x Bytes\n", t->len);
			seq_printf(seq, "  Reserved (should be zero) [%d]\n", t->reserved);
			seq_printf(seq, "  Name %s\n\n", t->name);
			break;
		case RSC_VDEV:
			v = rsc;
			seq_printf(seq, "Entry %d is of type %s\n", i, types[hdr->type]);

			seq_printf(seq, "  ID %d\n", v->id);
			seq_printf(seq, "  Notify ID %d\n", v->notifyid);
			seq_printf(seq, "  Device features 0x%x\n", v->dfeatures);
			seq_printf(seq, "  Guest features 0x%x\n", v->gfeatures);
			seq_printf(seq, "  Config length 0x%x\n", v->config_len);
			seq_printf(seq, "  Status 0x%x\n", v->status);
			seq_printf(seq, "  Number of vrings %d\n", v->num_of_vrings);
			seq_printf(seq, "  Reserved (should be zero) [%d][%d]\n\n",
				   v->reserved[0], v->reserved[1]);

			for (j = 0; j < v->num_of_vrings; j++) {
				seq_printf(seq, "  Vring %d\n", j);
				seq_printf(seq, "    Device Address 0x%x\n", v->vring[j].da);
				seq_printf(seq, "    Alignment %d\n", v->vring[j].align);
				seq_printf(seq, "    Number of buffers %d\n", v->vring[j].num);
				seq_printf(seq, "    Notify ID %d\n", v->vring[j].notifyid);
				seq_printf(seq, "    Physical Address 0x%x\n\n",
					   v->vring[j].pa);
			}
			break;
		default:
			seq_printf(seq, "Unknown resource type found: %d [hdr: %pK]\n",
				   hdr->type, hdr);
			break;
		}
	}

	return 0;
}