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IB/hfi1: Allow larger MTU without AIP

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[ Upstream commit b135e324d7a2e7fa0a7ef925076136e799b79f44 ]

The AIP code signals the phys_mtu in the following query_port()
fragment:

	props->phys_mtu = HFI1_CAP_IS_KSET(AIP) ? hfi1_max_mtu :
				ib_mtu_enum_to_int(props->max_mtu);

Using the largest MTU possible should not depend on AIP.

Fix by unconditionally using the hfi1_max_mtu value.

Fixes: 6d72344cf6c4 ("IB/ipoib: Increase ipoib Datagram mode MTU's upper limit")
Link: https://lore.kernel.org/r/1644348309-174874-1-git-send-email-mike.marciniszyn@cornelisnetworks.com
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Mike Marciniszyn 2022-02-08 14:25:09 -05:00 committed by Greg Kroah-Hartman
parent 48d23ef901
commit a84cb039d2
1 changed files with 1 additions and 2 deletions
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3
drivers/infiniband/hw/hfi1/verbs.c
View File

@ -1439,8 +1439,7 @@ static int query_port(struct rvt_dev_info *rdi, u8 port_num,
4096 : hfi1_max_mtu), IB_MTU_4096);
props->active_mtu = !valid_ib_mtu(ppd->ibmtu) ? props->max_mtu :
mtu_to_enum(ppd->ibmtu, IB_MTU_4096);
props->phys_mtu = HFI1_CAP_IS_KSET(AIP) ? hfi1_max_mtu :
ib_mtu_enum_to_int(props->max_mtu);
props->phys_mtu = hfi1_max_mtu;
return 0;
}