Commit 5459f652 authored by Maher Sanalla's avatar Maher Sanalla Committed by Leon Romanovsky
Browse files

IB/cache: Add log messages for IB device state changes 



Enhance visibility into IB device state transitions by adding log messages
to the kernel log (dmesg). Whenever an IB device changes state, a relevant
print will be printed, such as:

"mlx5_core 0000:08:00.0 mlx5_0: Port: 1 Link DOWN"
"mlx5_core 0000:08:00.0 rdmap8s0f0: Port: 2 Link ACTIVE"

Signed-off-by: default avatarMaher Sanalla <msanalla@nvidia.com>
Link: https://patch.msgid.link/2d26ccbd669bad99089fa2aebb5cba4014fc4999.1738586601.git.leon@kernel.org


Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent 656dff55

drivers/infiniband/core/cache.c

+6 −0
Original line number Diff line number Diff line
@@ -1501,6 +1501,12 @@ ib_cache_update(struct ib_device *device, u32 port, bool update_gids, 
		device->port_data[port].cache.pkey = pkey_cache;

	}

	device->port_data[port].cache.lmc = tprops->lmc;



	if (device->port_data[port].cache.port_state != IB_PORT_NOP &&

	    device->port_data[port].cache.port_state != tprops->state)

		ibdev_info(device, "Port: %d Link %s\n", port,

			   ib_port_state_to_str(tprops->state));



	device->port_data[port].cache.port_state = tprops->state;



	device->port_data[port].cache.subnet_prefix = tprops->subnet_prefix;

include/rdma/ib_verbs.h

+17 −0
Original line number Diff line number Diff line
@@ -519,6 +519,23 @@ enum ib_port_state { 
	IB_PORT_ACTIVE_DEFER	= 5

};



static inline const char *__attribute_const__

ib_port_state_to_str(enum ib_port_state state)

{

	const char * const states[] = {

		[IB_PORT_NOP] = "NOP",

		[IB_PORT_DOWN] = "DOWN",

		[IB_PORT_INIT] = "INIT",

		[IB_PORT_ARMED] = "ARMED",

		[IB_PORT_ACTIVE] = "ACTIVE",

		[IB_PORT_ACTIVE_DEFER] = "ACTIVE_DEFER",

	};



	if (state < ARRAY_SIZE(states))

		return states[state];

	return "UNKNOWN";

}



enum ib_port_phys_state {

	IB_PORT_PHYS_STATE_SLEEP = 1,

	IB_PORT_PHYS_STATE_POLLING = 2,