Re: [for-next PATCH v5 06/11] RDMA/rxe: Extend rxe packet format to support flush

[lizhijian@xxxxxxxxxxx]

On 11/11/2022 16:43, Yanjun Zhu wrote:
>> /******************************************************************************
>>    * Atomic Extended Transport Header
>>    
>> ******************************************************************************/
>> @@ -910,6 +956,7 @@ enum rxe_hdr_length {
>>       RXE_ATMETH_BYTES    = sizeof(struct rxe_atmeth),
>>       RXE_IETH_BYTES        = sizeof(struct rxe_ieth),
>>       RXE_RDETH_BYTES        = sizeof(struct rxe_rdeth),
>> +    RXE_FETH_BYTES        = sizeof(struct rxe_feth),
>>   };
>>   static inline size_t header_size(struct rxe_pkt_info *pkt)
>> diff --git a/drivers/infiniband/sw/rxe/rxe_opcode.c 
>> b/drivers/infiniband/sw/rxe/rxe_opcode.c
>> index d4ba4d506f17..55aad13e57bb 100644
>> --- a/drivers/infiniband/sw/rxe/rxe_opcode.c
>> +++ b/drivers/infiniband/sw/rxe/rxe_opcode.c
>> @@ -101,6 +101,12 @@ struct rxe_wr_opcode_info rxe_wr_opcode_info[] = {
>>               [IB_QPT_UC]    = WR_LOCAL_OP_MASK,
>>           },
>>       },
>> +    [IB_WR_FLUSH]                    = {
>> +        .name   = "IB_WR_FLUSH",
>> +        .mask   = {
>> +            [IB_QPT_RC]    = WR_FLUSH_MASK,
>> +        },
>> +    },
>>   };
> 
> Hi, Zhijian
> 
> I am making tests with it. Except rc, other modes are supported? such as 
> rd, xrc?
> 

Only RC is implemented for FLUSH, current RXE only supports RC service[1].
BTW, XRC is on the way in Bob's patch IIRC.

https://lore.kernel.org/r/cce0f07d-25fc-5880-69e7-001d951750b7@xxxxxxxxx



> Zhu Yanjun