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Message-ID: <f2df9d02-8693-60e6-e4fd-24c81817b898@oracle.com> Date: Thu, 26 Apr 2018 12:02:40 +0800 From: Yanjun Zhu <yanjun.zhu@...cle.com> To: Jianchao Wang <jianchao.w.wang@...cle.com>, monis@...lanox.com, dledford@...hat.com, jgg@...pe.ca Cc: linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] IB/rxe: add RXE_START_MASK for rxe_opcode IB_OPCODE_RC_SEND_ONLY_INV On 2018/4/26 11:52, Jianchao Wang wrote: > w/o RXE_START_MASK, the last_psn of IB_OPCODE_RC_SEND_ONLY_INV > will not be updated in update_wqe_psn, and the corresponding > wqe will not be acked in rxe_completer due to its last_psn is > zero. Finally, the other wqe will also not be able to be acked, > because the wqe of IB_OPCODE_RC_SEND_ONLY_INV with last_psn 0 > is still there. This causes large amount of io timeout when > nvmeof is over rxe. > > Add RXE_START_MASK for IB_OPCODE_RC_SEND_ONLY_INV to fix this. > > Signed-off-by: Jianchao Wang <jianchao.w.wang@...cle.com> Reviewed-by: Zhu Yanjun <yanjun.zhu@...cle.com> > --- > drivers/infiniband/sw/rxe/rxe_opcode.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/infiniband/sw/rxe/rxe_opcode.c b/drivers/infiniband/sw/rxe/rxe_opcode.c > index 61927c1..4cf1106 100644 > --- a/drivers/infiniband/sw/rxe/rxe_opcode.c > +++ b/drivers/infiniband/sw/rxe/rxe_opcode.c > @@ -390,7 +390,7 @@ struct rxe_opcode_info rxe_opcode[RXE_NUM_OPCODE] = { > .name = "IB_OPCODE_RC_SEND_ONLY_INV", > .mask = RXE_IETH_MASK | RXE_PAYLOAD_MASK | RXE_REQ_MASK > | RXE_COMP_MASK | RXE_RWR_MASK | RXE_SEND_MASK > - | RXE_END_MASK, > + | RXE_END_MASK | RXE_START_MASK, > .length = RXE_BTH_BYTES + RXE_IETH_BYTES, > .offset = { > [RXE_BTH] = 0,
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