6.1-stable review patch. If anyone has any objections, please let me know.
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From: Shiraz Saleem shiraz.saleem@intel.com
commit 0e15863015d97c1ee2cc29d599abcc7fa2dc3e95 upstream.
8d037973d48c ("RDMA/core: Refactor rdma_bind_addr") intoduces as regression on irdma devices on certain tests which uses rdma CM, such as cmtime.
No connections can be established with the MAD QP experiences a fatal error on the active side.
The cma destination address is not updated with the dst_addr when ULP on active side calls rdma_bind_addr followed by rdma_resolve_addr. The id_priv state is 'bound' in resolve_prepare_src and update is skipped.
This leaves the dgid passed into irdma driver to create an Address Handle (AH) for the MAD QP at 0. The create AH descriptor as well as the ARP cache entry is invalid and HW throws an asynchronous events as result.
[ 1207.656888] resolve_prepare_src caller: ucma_resolve_addr+0xff/0x170 [rdma_ucm] daddr=200.0.4.28 id_priv->state=7 [....] [ 1207.680362] ice 0000:07:00.1 rocep7s0f1: caller: irdma_create_ah+0x3e/0x70 [irdma] ah_id=0 arp_idx=0 dest_ip=0.0.0.0 destMAC=00:00:64:ca:b7:52 ipvalid=1 raw=0000:0000:0000:0000:0000:ffff:0000:0000 [ 1207.682077] ice 0000:07:00.1 rocep7s0f1: abnormal ae_id = 0x401 bool qp=1 qp_id = 1, ae_src=5 [ 1207.691657] infiniband rocep7s0f1: Fatal error (1) on MAD QP (1)
Fix this by updating the CMA destination address when the ULP calls a resolve address with the CM state already bound.
Fixes: 8d037973d48c ("RDMA/core: Refactor rdma_bind_addr") Signed-off-by: Shiraz Saleem shiraz.saleem@intel.com Link: https://lore.kernel.org/r/20230712234133.1343-1-shiraz.saleem@intel.com Signed-off-by: Leon Romanovsky leon@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/core/cma.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -4060,6 +4060,8 @@ static int resolve_prepare_src(struct rd RDMA_CM_ADDR_QUERY))) return -EINVAL;
+ } else { + memcpy(cma_dst_addr(id_priv), dst_addr, rdma_addr_size(dst_addr)); }
if (cma_family(id_priv) != dst_addr->sa_family) {