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Message-ID: <178b72a4-0cb6-4e91-ad91-f0d52abef560@molgen.mpg.de>
Date: Fri, 14 Jun 2024 09:43:34 +0200
From: Paul Menzel <pmenzel@...gen.mpg.de>
To: Aleksandr Loktionov <aleksandr.loktionov@...el.com>
Cc: anthony.l.nguyen@...el.com, intel-wired-lan@...ts.osuosl.org,
netdev@...r.kernel.org, Kelvin Kang <kelvin.kang@...el.com>,
Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>
Subject: Re: [Intel-wired-lan] [PATCH iwl-net v3] i40e: fix hot issue NVM
content is corrupted after nvmupdate
Dear Aleksandr,
Am 12.06.24 um 13:04 schrieb Aleksandr Loktionov:
> The bug affects users only at the time when they try to update NVM, and
> only F/W versions that generate errors while nvmupdate. For example X710DA2
> with 0x8000ECB7 F/W is affected, but there are probably more...
>
> After 230f3d53a547 patch, which should only replace F/W specific error codes
> with Linux kernel generic, all EIO errors started to be converted into EAGAIN
> which leads nvmupdate to retry until it timeouts and sometimes fails after
> more than 20 minutes in the middle of NVM update, so NVM becomes corrupted.
>
> Remove wrong EIO to EGAIN conversion and pass all errors as is.
I am still not convinced your change is correct with this statement. The
blamed commit converts the error
```
diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.h
b/drivers/net/ethernet/intel/i40e/i40e_adminq.h
index ee394aacef4d..267f2e0a21ce 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_adminq.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_adminq.h
@@ -5,7 +5,6 @@
#define _I40E_ADMINQ_H_
#include "i40e_osdep.h"
-#include "i40e_status.h"
#include "i40e_adminq_cmd.h"
#define I40E_ADMINQ_DESC(R, i) \
@@ -117,7 +116,7 @@ static inline int i40e_aq_rc_to_posix(int aq_ret,
int aq_rc)
};
/* aq_rc is invalid if AQ timed out */
- if (aq_ret == I40E_ERR_ADMIN_QUEUE_TIMEOUT)
+ if (aq_ret == -EIO)
return -EAGAIN;
if (!((u32)aq_rc < (sizeof(aq_to_posix) /
sizeof((aq_to_posix)[0]))))
```
> Fixes: 230f3d53a547 ("i40e: remove i40e_status")
> Co-developed-by: Kelvin Kang <kelvin.kang@...el.com>
> Signed-off-by: Kelvin Kang <kelvin.kang@...el.com>
> Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>
> Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@...el.com>
> ---
> reproduction:
> ./nvmupdate64
Would be nice to have in the commit message, and also any error messages
it throws.
> v2->v3 commit messege typos
> v1->v2 commit message update
> ---
> drivers/net/ethernet/intel/i40e/i40e_adminq.h | 4 ----
> 1 file changed, 4 deletions(-)
>
> diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.h b/drivers/net/ethernet/intel/i40e/i40e_adminq.h
> index ee86d2c..55b5bb8 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_adminq.h
> +++ b/drivers/net/ethernet/intel/i40e/i40e_adminq.h
> @@ -109,10 +109,6 @@ static inline int i40e_aq_rc_to_posix(int aq_ret, int aq_rc)
> -EFBIG, /* I40E_AQ_RC_EFBIG */
> };
>
> - /* aq_rc is invalid if AQ timed out */
> - if (aq_ret == -EIO)
> - return -EAGAIN;
> -
… but you remove the check entirely. Why is that correct?
> if (!((u32)aq_rc < (sizeof(aq_to_posix) / sizeof((aq_to_posix)[0]))))
> return -ERANGE;
>
Kind regards,
Paul
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