Commit e7d087fc authored Aug 03, 2020 by Håkon Bugge Committed by Jason Gunthorpe Aug 24, 2020

IB/mlx4: Add support for MRA

Using CX-3 in virtualized mode, MAD packets are proxied through the PF
driver. However, the handling lacks support of the MRA (Message Receipt
Acknowledgment) packet. When having dynamic debug enabled, we see tons of:

mlx4_ib_multiplex_cm_handler: id{slave: 7, sl_cm_id: 0x8fcb45a0} is NULL! attr_id: 0x11

Fixes: 3cf69cc8 ("IB/mlx4: Add CM paravirtualization")
Link: https://lore.kernel.org/r/20200803061941.1139994-3-haakon.bugge@oracle.com

Signed-off-by: Håkon Bugge <haakon.bugge@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

parent 09461944

drivers/infiniband/hw/mlx4/cm.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -294,6 +294,7 @@ int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id

		if (mad->mad_hdr.attr_id == CM_REQ_ATTR_ID \|\|
		mad->mad_hdr.attr_id == CM_REP_ATTR_ID \|\|
		mad->mad_hdr.attr_id == CM_MRA_ATTR_ID \|\|
		mad->mad_hdr.attr_id == CM_SIDR_REQ_ATTR_ID) {
		sl_cm_id = get_local_comm_id(mad);
		id = id_map_get(ibdev, &pv_cm_id, slave_id, sl_cm_id);