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* [PATCH] RDMA/rxe: Generate a completion for unsupported/invalid opcode
@ 2022-04-08  3:30 Xiao Yang
  2022-04-08 18:11 ` Bob Pearson
  2022-04-08 18:26 ` Jason Gunthorpe
  0 siblings, 2 replies; 5+ messages in thread
From: Xiao Yang @ 2022-04-08  3:30 UTC (permalink / raw)
  To: rpearsonhpe, leon, jgg; +Cc: linux-rdma, Xiao Yang

Current rxe_requester() doesn't generate a completion when processing an
unsupported/invalid opcode. If rxe driver doesn't support a new opcode
(e.g. RDMA Atomic Write) and RDMA library supports it, an application
using the new opcode can reproduce this issue. Fix the issue by calling
"goto err;".

Signed-off-by: Xiao Yang <yangx.jy@fujitsu.com>
---
 drivers/infiniband/sw/rxe/rxe_req.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/sw/rxe/rxe_req.c b/drivers/infiniband/sw/rxe/rxe_req.c
index ae5fbc79dd5c..8a1cff80a68e 100644
--- a/drivers/infiniband/sw/rxe/rxe_req.c
+++ b/drivers/infiniband/sw/rxe/rxe_req.c
@@ -661,7 +661,7 @@ int rxe_requester(void *arg)
 	opcode = next_opcode(qp, wqe, wqe->wr.opcode);
 	if (unlikely(opcode < 0)) {
 		wqe->status = IB_WC_LOC_QP_OP_ERR;
-		goto exit;
+		goto err;
 	}
 
 	mask = rxe_opcode[opcode].mask;
-- 
2.34.1




^ permalink raw reply related	[flat|nested] 5+ messages in thread

* Re: [PATCH] RDMA/rxe: Generate a completion for unsupported/invalid opcode
  2022-04-08  3:30 [PATCH] RDMA/rxe: Generate a completion for unsupported/invalid opcode Xiao Yang
@ 2022-04-08 18:11 ` Bob Pearson
  2022-04-08 18:26 ` Jason Gunthorpe
  1 sibling, 0 replies; 5+ messages in thread
From: Bob Pearson @ 2022-04-08 18:11 UTC (permalink / raw)
  To: Xiao Yang, leon, jgg; +Cc: linux-rdma

On 4/7/22 22:30, Xiao Yang wrote:
> Current rxe_requester() doesn't generate a completion when processing an
> unsupported/invalid opcode. If rxe driver doesn't support a new opcode
> (e.g. RDMA Atomic Write) and RDMA library supports it, an application
> using the new opcode can reproduce this issue. Fix the issue by calling
> "goto err;".
> 
> Signed-off-by: Xiao Yang <yangx.jy@fujitsu.com>
> ---
>  drivers/infiniband/sw/rxe/rxe_req.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/infiniband/sw/rxe/rxe_req.c b/drivers/infiniband/sw/rxe/rxe_req.c
> index ae5fbc79dd5c..8a1cff80a68e 100644
> --- a/drivers/infiniband/sw/rxe/rxe_req.c
> +++ b/drivers/infiniband/sw/rxe/rxe_req.c
> @@ -661,7 +661,7 @@ int rxe_requester(void *arg)
>  	opcode = next_opcode(qp, wqe, wqe->wr.opcode);
>  	if (unlikely(opcode < 0)) {
>  		wqe->status = IB_WC_LOC_QP_OP_ERR;
> -		goto exit;
> +		goto err;
>  	}
>  
>  	mask = rxe_opcode[opcode].mask;

Much better! This looks correct.

Reviewed-by: Bob Pearson <rpearsonhpe@gmail.com>

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH] RDMA/rxe: Generate a completion for unsupported/invalid opcode
  2022-04-08  3:30 [PATCH] RDMA/rxe: Generate a completion for unsupported/invalid opcode Xiao Yang
  2022-04-08 18:11 ` Bob Pearson
@ 2022-04-08 18:26 ` Jason Gunthorpe
  2022-04-08 19:34   ` Bob Pearson
  1 sibling, 1 reply; 5+ messages in thread
From: Jason Gunthorpe @ 2022-04-08 18:26 UTC (permalink / raw)
  To: Xiao Yang; +Cc: rpearsonhpe, leon, linux-rdma

On Fri, Apr 08, 2022 at 11:30:29AM +0800, Xiao Yang wrote:
> Current rxe_requester() doesn't generate a completion when processing an
> unsupported/invalid opcode. If rxe driver doesn't support a new opcode
> (e.g. RDMA Atomic Write) and RDMA library supports it, an application
> using the new opcode can reproduce this issue. Fix the issue by calling
> "goto err;".
> 
> Signed-off-by: Xiao Yang <yangx.jy@fujitsu.com>
> ---
>  drivers/infiniband/sw/rxe/rxe_req.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Fixes line?

Jason

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH] RDMA/rxe: Generate a completion for unsupported/invalid opcode
  2022-04-08 18:26 ` Jason Gunthorpe
@ 2022-04-08 19:34   ` Bob Pearson
  2022-04-10 11:29     ` yangx.jy
  0 siblings, 1 reply; 5+ messages in thread
From: Bob Pearson @ 2022-04-08 19:34 UTC (permalink / raw)
  To: Jason Gunthorpe, Xiao Yang; +Cc: leon, linux-rdma

On 4/8/22 13:26, Jason Gunthorpe wrote:
> On Fri, Apr 08, 2022 at 11:30:29AM +0800, Xiao Yang wrote:
>> Current rxe_requester() doesn't generate a completion when processing an
>> unsupported/invalid opcode. If rxe driver doesn't support a new opcode
>> (e.g. RDMA Atomic Write) and RDMA library supports it, an application
>> using the new opcode can reproduce this issue. Fix the issue by calling
>> "goto err;".
>>
>> Signed-off-by: Xiao Yang <yangx.jy@fujitsu.com>
>> ---
>>  drivers/infiniband/sw/rxe/rxe_req.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> Fixes line?
> 
> Jason

That would be 

Fixes: 8700e3e7c485 ("Soft RoCE (RXE) - The software RoCE driver")


Been there forever.

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH] RDMA/rxe: Generate a completion for unsupported/invalid opcode
  2022-04-08 19:34   ` Bob Pearson
@ 2022-04-10 11:29     ` yangx.jy
  0 siblings, 0 replies; 5+ messages in thread
From: yangx.jy @ 2022-04-10 11:29 UTC (permalink / raw)
  To: Bob Pearson, Jason Gunthorpe; +Cc: leon, linux-rdma

On 2022/4/9 3:34, Bob Pearson wrote:
> On 4/8/22 13:26, Jason Gunthorpe wrote:
>> On Fri, Apr 08, 2022 at 11:30:29AM +0800, Xiao Yang wrote:
>>> Current rxe_requester() doesn't generate a completion when processing an
>>> unsupported/invalid opcode. If rxe driver doesn't support a new opcode
>>> (e.g. RDMA Atomic Write) and RDMA library supports it, an application
>>> using the new opcode can reproduce this issue. Fix the issue by calling
>>> "goto err;".
>>>
>>> Signed-off-by: Xiao Yang <yangx.jy@fujitsu.com>
>>> ---
>>>   drivers/infiniband/sw/rxe/rxe_req.c | 2 +-
>>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> Fixes line?
>>
>> Jason
> 
> That would be
> 
> Fixes: 8700e3e7c485 ("Soft RoCE (RXE) - The software RoCE driver")
> 

Right, I will send v2 patch with the Fixes line.

Best Regards,
Xiao Yang
> 
> Been there forever.

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2022-04-10 11:29 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-04-08  3:30 [PATCH] RDMA/rxe: Generate a completion for unsupported/invalid opcode Xiao Yang
2022-04-08 18:11 ` Bob Pearson
2022-04-08 18:26 ` Jason Gunthorpe
2022-04-08 19:34   ` Bob Pearson
2022-04-10 11:29     ` yangx.jy

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