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Message-ID: <e0c35b34-a845-4221-b9d3-867d2f339f8d@molgen.mpg.de>
Date: Wed, 28 Feb 2024 18:33:58 +0100
From: Paul Menzel <pmenzel@...gen.mpg.de>
To: Ivan Vecera <ivecera@...hat.com>
Cc: netdev@...r.kernel.org, intel-wired-lan@...ts.osuosl.org,
Jesse Brandeburg <jesse.brandeburg@...el.com>,
open list <linux-kernel@...r.kernel.org>, Eric Dumazet
<edumazet@...gle.com>, Tony Nguyen <anthony.l.nguyen@...el.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
"David S. Miller" <davem@...emloft.net>
Subject: Re: [Intel-wired-lan] [PATCH net] i40e: Fix firmware version
comparison function
Dear Ivan,
Thank you for your patch.
Am 28.02.24 um 18:26 schrieb Ivan Vecera:
> Helper i40e_is_fw_ver_eq() compares incorrectly given firmware version
> as it returns true when the major version of running firmware is
> greater than the given major version that is wrong and results in
… version. That …
> failure during getting of DCB configuration where this helper is used.
> Fix the check and return true only if the running FW version is exactly
> equals to the given version.
is … equal
> Reproducer:
> 1. Load i40e driver
> 2. Check dmesg output
>
> [root@...t ~]# modprobe i40e
> [root@...t ~]# dmesg | grep 'i40e.*DCB'
> [ 74.750642] i40e 0000:02:00.0: Query for DCB configuration failed, err -EIO aq_err I40E_AQ_RC_EINVAL
> [ 74.759770] i40e 0000:02:00.0: DCB init failed -5, disabled
> [ 74.966550] i40e 0000:02:00.1: Query for DCB configuration failed, err -EIO aq_err I40E_AQ_RC_EINVAL
> [ 74.975683] i40e 0000:02:00.1: DCB init failed -5, disabled
>
> Fixes: cf488e13221f ("i40e: Add other helpers to check version of running firmware and AQ API")
> Signed-off-by: Ivan Vecera <ivecera@...hat.com>
> ---
> drivers/net/ethernet/intel/i40e/i40e_prototype.h | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/net/ethernet/intel/i40e/i40e_prototype.h b/drivers/net/ethernet/intel/i40e/i40e_prototype.h
> index af4269330581..ce1f11b8ad65 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_prototype.h
> +++ b/drivers/net/ethernet/intel/i40e/i40e_prototype.h
> @@ -567,8 +567,7 @@ static inline bool i40e_is_fw_ver_lt(struct i40e_hw *hw, u16 maj, u16 min)
> **/
> static inline bool i40e_is_fw_ver_eq(struct i40e_hw *hw, u16 maj, u16 min)
> {
> - return (hw->aq.fw_maj_ver > maj ||
> - (hw->aq.fw_maj_ver == maj && hw->aq.fw_min_ver == min));
> + return (hw->aq.fw_maj_ver == maj && hw->aq.fw_min_ver == min);
> }
>
> #endif /* _I40E_PROTOTYPE_H_ */
With the nits in the commit message addressed, this is
Reviewed-by: Paul Menzel <pmenzel@...gen.mpg.de>
Kind regards,
Paul
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