RDMA/irdma: Do not move a fresh RoCE QP to ERROR on RESET

irdma_modify_qp_roce() handles IB_QPS_RESET like IB_QPS_ERR and moves
the QP to ERROR. On a QP that was never moved to INIT, this makes the
following RESET->INIT fail with -EINVAL, while ibv_query_qp() still
reports RESET.

RESET->RESET is a valid transition. The Mooncake transfer engine
resets every new QP before INIT, so it cannot connect over an E810,
while mlx5 accepts the same sequence:

  ibv_create_qp(RC)        -> RESET
  ibv_modify_qp(RESET)     -> 0
  ibv_modify_qp(INIT, ...) -> -EINVAL

Skip the hardware modify when the QP has not been moved to INIT yet
(iwarp_state is IRDMA_QP_STATE_INVALID), as there is nothing to flush.
RESET after INIT still goes to ERROR.

Fixes: b48c24c2d710 ("RDMA/irdma: Implement device supported verb APIs")
Assisted-by: LLM
Signed-off-by: Nguyễn Văn Cao Nguyên <nguyennvc@greennode.ai>
Link: https://patch.msgid.link/20260930-irdma-reset-fresh-qp-v1-1-065327274e2b@greennode.ai
Signed-off-by: Leon Romanovsky <leon@kernel.org>

0 files changed, 0 insertions, 0 deletions