2 /* vcc.c: sun4v virtual channel concentrator
46 /* Microseconds that thread will delay waiting for a vcc port ref */
108  * vcc_table_add() - Add VCC port to the VCC table
109  * @port: pointer to the VCC port
111  * Return: index of the port in the VCC table on success,
135  * vcc_table_remove() - Removes a VCC port from the VCC table
136  * @index: Index into the VCC table
151  * vcc_get() - Gets a reference to VCC port
152  * @index: Index into the VCC table
155  * Return: reference to the VCC port, if found
201  * vcc_put() - Returns a reference to VCC port
202  * @port: pointer to VCC port
232  * vcc_get_ne() - Get a non-exclusive reference to VCC port
233  * @index: Index into the VCC table
235  * Gets a non-exclusive reference to VCC port, if it's not removed
237  * Return: pointer to the VCC port, if found
316 		vccdbg("VCC: reset rx q: rv=%d\n", rv);  in vcc_ldc_read()
333 		vccdbg("VCC: ldc_read()=%d\n", rv);  in vcc_ldc_read()
343 			pr_err("VCC: unknown msg [%02x:%02x:%04x:%08x]\n",  in vcc_ldc_read()
410 		vccdbg("VCC: ldc_write()=%d\n", rv);  in vcc_tx_timer()
427  * @arg: VCC private data
430  * Handles LDC events for VCC
457 		pr_err("VCC: unexpected LDC event(%d)\n", event);  in vcc_event()
504 	vccdbg("VCC: ldc_write(%ld)=%d\n", sizeof(pkt.tag), rv);  in vcc_send_ctl()
549  * vcc_probe() - Initialize VCC port
550  * @vdev: Pointer to VIO device of the new VCC port
553  * Initializes a VCC port to receive serial console data from
570 	vccdbg("VCC: name=%s\n", dev_name(&vdev->dev));  in vcc_probe()
573 		pr_err("VCC: TTY driver not registered\n");  in vcc_probe()
603 		pr_err("VCC: no more TTY indices left for allocation\n");  in vcc_probe()
608 	/* Register the device using VCC table index as TTY index */  in vcc_probe()
624 	domain = mdesc_get_property(hp, node, "vcc-domain-name", NULL);  in vcc_probe()
674  * vcc_remove() - Terminate a VCC port
675  * @vdev: Pointer to VIO device of the VCC port
677  * Terminates a VCC port. Sets up the teardown of TTY and
696 	/* Get exclusive reference to VCC, ensures that there are no other  in vcc_remove()
721 		.type = "vcc-port",
731 	.name		= "vcc",
743 		pr_err("VCC: open: Failed to find VCC port\n");  in vcc_open()
748 		pr_err("VCC: open: LDC channel not configured\n");  in vcc_open()
757 		pr_err("VCC: open: TTY port not found\n");  in vcc_open()
762 		pr_err("VCC: open: TTY ops not defined\n");  in vcc_open()
775 		pr_err("VCC: close: TTY port not found\n");  in vcc_close()
800 		pr_err("VCC: hangup: Failed to find VCC port\n");  in vcc_hangup()
805 		pr_err("VCC: hangup: TTY port not found\n");  in vcc_hangup()
828 		pr_err("VCC: write: Failed to find VCC port");  in vcc_write()
855 		/* Since we know we have enough room in VCC buffer for tosend  in vcc_write()
860 		vccdbg("VCC: write: ldc_write(%zu)=%d\n",  in vcc_write()
877 	vccdbg("VCC: write: total=%zu rv=%d", total_sent, rv);  in vcc_write()
889 		pr_err("VCC: write_room: Failed to find VCC port\n");  in vcc_write_room()
907 		pr_err("VCC: chars_in_buffer: Failed to find VCC port\n");  in vcc_chars_in_buffer()
925 		pr_err("VCC: break_ctl: Failed to find VCC port\n");  in vcc_break_ctl()
966 		pr_err("VCC: install: Failed to find VCC port\n");  in vcc_install()
1026 		pr_err("VCC: TTY driver alloc failed\n");  in vcc_tty_init()
1030 	vcc_tty_driver->driver_name = "vcc";  in vcc_tty_init()
1031 	vcc_tty_driver->name = "vcc";  in vcc_tty_init()
1041 		pr_err("VCC: TTY driver registration failed\n");  in vcc_tty_init()
1047 	vccdbg("VCC: TTY driver registered\n");  in vcc_tty_init()
1056 	vccdbg("VCC: TTY driver unregistered\n");  in vcc_tty_exit()
1067 		pr_err("VCC: TTY init failed\n");  in vcc_init()
1073 		pr_err("VCC: VIO driver registration failed\n");  in vcc_init()
1076 		vccdbg("VCC: VIO driver registered successfully\n");  in vcc_init()
1085 	vccdbg("VCC: VIO driver unregistered\n");  in vcc_exit()
1087 	vccdbg("VCC: TTY driver unregistered\n");  in vcc_exit()