[Intel-wired-lan] [PATCH v1 iwl-next 0/2] igbvf: ethtool statistics improvements

[Intel-wired-lan] [PATCH v1 iwl-next 0/2] igbvf: ethtool statistics improvements

[Kohei Enju]

This series contains:
1. Add missing lbtx_packets and lbtx_bytes counters that are available
in hardware but not exposed via ethtool
2. Remove rx_long_byte_count counter that shows the same value as
rx_bytes

Tested on Intel Corporation I350 Gigabit Network Connection.

Kohei Enju (2):
  igbvf: add lbtx_packets and lbtx_bytes to ethtool statistics
  igbvf: remove duplicated counter rx_long_byte_count from ethtool
    statistics

 drivers/net/ethernet/intel/igbvf/ethtool.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

-- 
2.48.1

[Intel-wired-lan] [PATCH v1 iwl-next 1/2] igbvf: add lbtx_packets and lbtx_bytes to ethtool statistics

[Kohei Enju]

Currently ethtool shows lbrx_packets and lbrx_bytes (Good RX
Packets/Octets loopback Count), but doesn't show the TX-side equivalents
(lbtx_packets and lbtx_bytes). Add visibility of those missing
statistics by adding them to ethtool statistics.

In addition, the order of lbrx_bytes and lbrx_packets is not consistent
with non-loopback statistics (rx_packets, rx_bytes). Therefore, align
the order by swapping positions of lbrx_bytes and lbrx_packets.

Tested on Intel Corporation I350 Gigabit Network Connection.

Before:
  # ethtool -S ens5 | grep -E "x_(bytes|packets)"
       rx_packets: 135
       tx_packets: 106
       rx_bytes: 16010
       tx_bytes: 12451
       lbrx_bytes: 1148
       lbrx_packets: 12

After:
  # ethtool -S ens5 | grep -E "x_(bytes|packets)"
       rx_packets: 748
       tx_packets: 304
       rx_bytes: 81513
       tx_bytes: 33698
       lbrx_packets: 97
       lbtx_packets: 109
       lbrx_bytes: 12090
       lbtx_bytes: 12401

Tested-by: Kohei Enju <enjuk@amazon.com>
Signed-off-by: Kohei Enju <enjuk@amazon.com>
---
 drivers/net/ethernet/intel/igbvf/ethtool.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/igbvf/ethtool.c b/drivers/net/ethernet/intel/igbvf/ethtool.c
index 773895c663fd..c6defc495f13 100644
--- a/drivers/net/ethernet/intel/igbvf/ethtool.c
+++ b/drivers/net/ethernet/intel/igbvf/ethtool.c
@@ -30,8 +30,10 @@ static const struct igbvf_stats igbvf_gstrings_stats[] = {
 	{ "rx_bytes", IGBVF_STAT(stats.gorc, stats.base_gorc) },
 	{ "tx_bytes", IGBVF_STAT(stats.gotc, stats.base_gotc) },
 	{ "multicast", IGBVF_STAT(stats.mprc, stats.base_mprc) },
-	{ "lbrx_bytes", IGBVF_STAT(stats.gorlbc, stats.base_gorlbc) },
 	{ "lbrx_packets", IGBVF_STAT(stats.gprlbc, stats.base_gprlbc) },
+	{ "lbtx_packets", IGBVF_STAT(stats.gptlbc, stats.base_gptlbc) },
+	{ "lbrx_bytes", IGBVF_STAT(stats.gorlbc, stats.base_gorlbc) },
+	{ "lbtx_bytes", IGBVF_STAT(stats.gotlbc, stats.base_gotlbc) },
 	{ "tx_restart_queue", IGBVF_STAT(restart_queue, zero_base) },
 	{ "tx_timeout_count", IGBVF_STAT(tx_timeout_count, zero_base) },
 	{ "rx_long_byte_count", IGBVF_STAT(stats.gorc, stats.base_gorc) },
-- 
2.48.1

[Intel-wired-lan] [PATCH v1 iwl-next 2/2] igbvf: remove duplicated counter rx_long_byte_count from ethtool statistics

[Kohei Enju]

rx_long_byte_count shows the value of the GORC (Good Octets Received
Count) register. However, the register value is already shown as
rx_bytes and they always show the same value.

Remove rx_long_byte_count as the Intel ethernet driver e1000e did in
commit 0a939912cf9c ("e1000e: cleanup redundant statistics counter").

Tested on Intel Corporation I350 Gigabit Network Connection.

Tested-by: Kohei Enju <enjuk@amazon.com>
Signed-off-by: Kohei Enju <enjuk@amazon.com>
---
 drivers/net/ethernet/intel/igbvf/ethtool.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/igbvf/ethtool.c b/drivers/net/ethernet/intel/igbvf/ethtool.c
index c6defc495f13..9c08ebfad804 100644
--- a/drivers/net/ethernet/intel/igbvf/ethtool.c
+++ b/drivers/net/ethernet/intel/igbvf/ethtool.c
@@ -36,7 +36,6 @@ static const struct igbvf_stats igbvf_gstrings_stats[] = {
 	{ "lbtx_bytes", IGBVF_STAT(stats.gotlbc, stats.base_gotlbc) },
 	{ "tx_restart_queue", IGBVF_STAT(restart_queue, zero_base) },
 	{ "tx_timeout_count", IGBVF_STAT(tx_timeout_count, zero_base) },
-	{ "rx_long_byte_count", IGBVF_STAT(stats.gorc, stats.base_gorc) },
 	{ "rx_csum_offload_good", IGBVF_STAT(hw_csum_good, zero_base) },
 	{ "rx_csum_offload_errors", IGBVF_STAT(hw_csum_err, zero_base) },
 	{ "rx_header_split", IGBVF_STAT(rx_hdr_split, zero_base) },
-- 
2.48.1

Re: [Intel-wired-lan] [PATCH v1 iwl-next 1/2] igbvf: add lbtx_packets and lbtx_bytes to ethtool statistics

[Paul Menzel]

Dear Kohei,


Thank you for your patch.

Am 13.08.25 um 09:50 schrieb Kohei Enju:
> Currently ethtool shows lbrx_packets and lbrx_bytes (Good RX
> Packets/Octets loopback Count), but doesn't show the TX-side equivalents
> (lbtx_packets and lbtx_bytes). Add visibility of those missing
> statistics by adding them to ethtool statistics.
> 
> In addition, the order of lbrx_bytes and lbrx_packets is not consistent
> with non-loopback statistics (rx_packets, rx_bytes). Therefore, align
> the order by swapping positions of lbrx_bytes and lbrx_packets.
> 
> Tested on Intel Corporation I350 Gigabit Network Connection.
> 
> Before:
>    # ethtool -S ens5 | grep -E "x_(bytes|packets)"
>         rx_packets: 135
>         tx_packets: 106
>         rx_bytes: 16010
>         tx_bytes: 12451
>         lbrx_bytes: 1148
>         lbrx_packets: 12
> 
> After:
>    # ethtool -S ens5 | grep -E "x_(bytes|packets)"
>         rx_packets: 748
>         tx_packets: 304
>         rx_bytes: 81513
>         tx_bytes: 33698
>         lbrx_packets: 97
>         lbtx_packets: 109
>         lbrx_bytes: 12090
>         lbtx_bytes: 12401
> 
> Tested-by: Kohei Enju <enjuk@amazon.com>

No need to resend, but I believe, you only add a Tested-by: tag, if the 
person differs from the author/Signed-off-by: tag.

> Signed-off-by: Kohei Enju <enjuk@amazon.com>
> ---
>   drivers/net/ethernet/intel/igbvf/ethtool.c | 4 +++-
>   1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/intel/igbvf/ethtool.c b/drivers/net/ethernet/intel/igbvf/ethtool.c
> index 773895c663fd..c6defc495f13 100644
> --- a/drivers/net/ethernet/intel/igbvf/ethtool.c
> +++ b/drivers/net/ethernet/intel/igbvf/ethtool.c
> @@ -30,8 +30,10 @@ static const struct igbvf_stats igbvf_gstrings_stats[] = {
>   	{ "rx_bytes", IGBVF_STAT(stats.gorc, stats.base_gorc) },
>   	{ "tx_bytes", IGBVF_STAT(stats.gotc, stats.base_gotc) },
>   	{ "multicast", IGBVF_STAT(stats.mprc, stats.base_mprc) },
> -	{ "lbrx_bytes", IGBVF_STAT(stats.gorlbc, stats.base_gorlbc) },
>   	{ "lbrx_packets", IGBVF_STAT(stats.gprlbc, stats.base_gprlbc) },
> +	{ "lbtx_packets", IGBVF_STAT(stats.gptlbc, stats.base_gptlbc) },
> +	{ "lbrx_bytes", IGBVF_STAT(stats.gorlbc, stats.base_gorlbc) },
> +	{ "lbtx_bytes", IGBVF_STAT(stats.gotlbc, stats.base_gotlbc) },
>   	{ "tx_restart_queue", IGBVF_STAT(restart_queue, zero_base) },
>   	{ "tx_timeout_count", IGBVF_STAT(tx_timeout_count, zero_base) },
>   	{ "rx_long_byte_count", IGBVF_STAT(stats.gorc, stats.base_gorc) },

Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>


Kind regards,

Paul

Re: [Intel-wired-lan] [PATCH v1 iwl-next 2/2] igbvf: remove duplicated counter rx_long_byte_count from ethtool statistics

[Paul Menzel]

Dear Kohei,


Thank you for your patch.

Am 13.08.25 um 09:50 schrieb Kohei Enju:
> rx_long_byte_count shows the value of the GORC (Good Octets Received
> Count) register. However, the register value is already shown as
> rx_bytes and they always show the same value.
> 
> Remove rx_long_byte_count as the Intel ethernet driver e1000e did in
> commit 0a939912cf9c ("e1000e: cleanup redundant statistics counter").
> 
> Tested on Intel Corporation I350 Gigabit Network Connection.
> 
> Tested-by: Kohei Enju <enjuk@amazon.com>
> Signed-off-by: Kohei Enju <enjuk@amazon.com>
> ---
>   drivers/net/ethernet/intel/igbvf/ethtool.c | 1 -
>   1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/intel/igbvf/ethtool.c b/drivers/net/ethernet/intel/igbvf/ethtool.c
> index c6defc495f13..9c08ebfad804 100644
> --- a/drivers/net/ethernet/intel/igbvf/ethtool.c
> +++ b/drivers/net/ethernet/intel/igbvf/ethtool.c
> @@ -36,7 +36,6 @@ static const struct igbvf_stats igbvf_gstrings_stats[] = {
>   	{ "lbtx_bytes", IGBVF_STAT(stats.gotlbc, stats.base_gotlbc) },
>   	{ "tx_restart_queue", IGBVF_STAT(restart_queue, zero_base) },
>   	{ "tx_timeout_count", IGBVF_STAT(tx_timeout_count, zero_base) },
> -	{ "rx_long_byte_count", IGBVF_STAT(stats.gorc, stats.base_gorc) },
>   	{ "rx_csum_offload_good", IGBVF_STAT(hw_csum_good, zero_base) },
>   	{ "rx_csum_offload_errors", IGBVF_STAT(hw_csum_err, zero_base) },
>   	{ "rx_header_split", IGBVF_STAT(rx_hdr_split, zero_base) },

Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>


Kind regards,

Paul


PS: Should you resend, *redundant* instead of *duplicated* might better 
describe the removed counter.

Re: [Intel-wired-lan] [PATCH v1 iwl-next 1/2] igbvf: add lbtx_packets and lbtx_bytes to ethtool statistics

[Kohei Enju]

On Wed, 13 Aug 2025 10:18:29 +0200, Paul Menzel wrote:

> Dear Kohei,
> 
> 
> Thank you for your patch.
> 
> Am 13.08.25 um 09:50 schrieb Kohei Enju:
> > Currently ethtool shows lbrx_packets and lbrx_bytes (Good RX
> > Packets/Octets loopback Count), but doesn't show the TX-side equivalents
> > (lbtx_packets and lbtx_bytes). Add visibility of those missing
> > statistics by adding them to ethtool statistics.
> > 
> > In addition, the order of lbrx_bytes and lbrx_packets is not consistent
> > with non-loopback statistics (rx_packets, rx_bytes). Therefore, align
> > the order by swapping positions of lbrx_bytes and lbrx_packets.
> > 
> > Tested on Intel Corporation I350 Gigabit Network Connection.
> > 
> > Before:
> >    # ethtool -S ens5 | grep -E "x_(bytes|packets)"
> >         rx_packets: 135
> >         tx_packets: 106
> >         rx_bytes: 16010
> >         tx_bytes: 12451
> >         lbrx_bytes: 1148
> >         lbrx_packets: 12
> > 
> > After:
> >    # ethtool -S ens5 | grep -E "x_(bytes|packets)"
> >         rx_packets: 748
> >         tx_packets: 304
> >         rx_bytes: 81513
> >         tx_bytes: 33698
> >         lbrx_packets: 97
> >         lbtx_packets: 109
> >         lbrx_bytes: 12090
> >         lbtx_bytes: 12401
> > 
> > Tested-by: Kohei Enju <enjuk@amazon.com>
> 
> No need to resend, but I believe, you only add a Tested-by: tag, if the 
> person differs from the author/Signed-off-by: tag.

Oh, I didn't know that. Thank you for the feedback.

Since I want to resend the other patch[1] after updating as you pointed
out, I'll resend this series as v2 including this patch without the
Tested-by: tag.

[1] https://lore.kernel.org/intel-wired-lan/20250813075206.70114-3-enjuk@amazon.com/

> > Signed-off-by: Kohei Enju <enjuk@amazon.com>
> > ---
> >   drivers/net/ethernet/intel/igbvf/ethtool.c | 4 +++-
> >   1 file changed, 3 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/net/ethernet/intel/igbvf/ethtool.c b/drivers/net/ethernet/intel/igbvf/ethtool.c
> > index 773895c663fd..c6defc495f13 100644
> > --- a/drivers/net/ethernet/intel/igbvf/ethtool.c
> > +++ b/drivers/net/ethernet/intel/igbvf/ethtool.c
> > @@ -30,8 +30,10 @@ static const struct igbvf_stats igbvf_gstrings_stats[] = {
> >   	{ "rx_bytes", IGBVF_STAT(stats.gorc, stats.base_gorc) },
> >   	{ "tx_bytes", IGBVF_STAT(stats.gotc, stats.base_gotc) },
> >   	{ "multicast", IGBVF_STAT(stats.mprc, stats.base_mprc) },
> > -	{ "lbrx_bytes", IGBVF_STAT(stats.gorlbc, stats.base_gorlbc) },
> >   	{ "lbrx_packets", IGBVF_STAT(stats.gprlbc, stats.base_gprlbc) },
> > +	{ "lbtx_packets", IGBVF_STAT(stats.gptlbc, stats.base_gptlbc) },
> > +	{ "lbrx_bytes", IGBVF_STAT(stats.gorlbc, stats.base_gorlbc) },
> > +	{ "lbtx_bytes", IGBVF_STAT(stats.gotlbc, stats.base_gotlbc) },
> >   	{ "tx_restart_queue", IGBVF_STAT(restart_queue, zero_base) },
> >   	{ "tx_timeout_count", IGBVF_STAT(tx_timeout_count, zero_base) },
> >   	{ "rx_long_byte_count", IGBVF_STAT(stats.gorc, stats.base_gorc) },
> 
> Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
> 
> 
> Kind regards,
> 
> Paul

Thank you for reviewing!

Re: [Intel-wired-lan] [PATCH v1 iwl-next 2/2] igbvf: remove duplicated counter rx_long_byte_count from ethtool statistics

[Kohei Enju]

On Wed, 13 Aug 2025 10:20:33 +0200, Paul Menzel wrote:

> Dear Kohei,
> 
> 
> Thank you for your patch.
> 
> Am 13.08.25 um 09:50 schrieb Kohei Enju:
> > rx_long_byte_count shows the value of the GORC (Good Octets Received
> > Count) register. However, the register value is already shown as
> > rx_bytes and they always show the same value.
> > 
> > Remove rx_long_byte_count as the Intel ethernet driver e1000e did in
> > commit 0a939912cf9c ("e1000e: cleanup redundant statistics counter").
> > 
> > Tested on Intel Corporation I350 Gigabit Network Connection.
> > 
> > Tested-by: Kohei Enju <enjuk@amazon.com>
> > Signed-off-by: Kohei Enju <enjuk@amazon.com>
> > ---
> >   drivers/net/ethernet/intel/igbvf/ethtool.c | 1 -
> >   1 file changed, 1 deletion(-)
> > 
> > diff --git a/drivers/net/ethernet/intel/igbvf/ethtool.c b/drivers/net/ethernet/intel/igbvf/ethtool.c
> > index c6defc495f13..9c08ebfad804 100644
> > --- a/drivers/net/ethernet/intel/igbvf/ethtool.c
> > +++ b/drivers/net/ethernet/intel/igbvf/ethtool.c
> > @@ -36,7 +36,6 @@ static const struct igbvf_stats igbvf_gstrings_stats[] = {
> >   	{ "lbtx_bytes", IGBVF_STAT(stats.gotlbc, stats.base_gotlbc) },
> >   	{ "tx_restart_queue", IGBVF_STAT(restart_queue, zero_base) },
> >   	{ "tx_timeout_count", IGBVF_STAT(tx_timeout_count, zero_base) },
> > -	{ "rx_long_byte_count", IGBVF_STAT(stats.gorc, stats.base_gorc) },
> >   	{ "rx_csum_offload_good", IGBVF_STAT(hw_csum_good, zero_base) },
> >   	{ "rx_csum_offload_errors", IGBVF_STAT(hw_csum_err, zero_base) },
> >   	{ "rx_header_split", IGBVF_STAT(rx_hdr_split, zero_base) },
> 
> Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>

Thank you for reviewing!

> 
> Kind regards,
> 
> Paul
> 
> 
> PS: Should you resend, *redundant* instead of *duplicated* might better 
> describe the removed counter.

Sure, I resend this patch as v2 with the changes:
  - s/duplicated/redundant/
  - Remove Tested-by: tag
  - Add Reviewed-by: tag

Thanks for the feedback.

Re: [Intel-wired-lan] [PATCH v1 iwl-next 1/2] igbvf: add lbtx_packets and lbtx_bytes to ethtool statistics

[Simon Horman]

On Wed, Aug 13, 2025 at 10:18:29AM +0200, Paul Menzel wrote:
> Dear Kohei,
> 
> 
> Thank you for your patch.
> 
> Am 13.08.25 um 09:50 schrieb Kohei Enju:
> > Currently ethtool shows lbrx_packets and lbrx_bytes (Good RX
> > Packets/Octets loopback Count), but doesn't show the TX-side equivalents
> > (lbtx_packets and lbtx_bytes). Add visibility of those missing
> > statistics by adding them to ethtool statistics.
> > 
> > In addition, the order of lbrx_bytes and lbrx_packets is not consistent
> > with non-loopback statistics (rx_packets, rx_bytes). Therefore, align
> > the order by swapping positions of lbrx_bytes and lbrx_packets.
> > 
> > Tested on Intel Corporation I350 Gigabit Network Connection.
> > 
> > Before:
> >    # ethtool -S ens5 | grep -E "x_(bytes|packets)"
> >         rx_packets: 135
> >         tx_packets: 106
> >         rx_bytes: 16010
> >         tx_bytes: 12451
> >         lbrx_bytes: 1148
> >         lbrx_packets: 12
> > 
> > After:
> >    # ethtool -S ens5 | grep -E "x_(bytes|packets)"
> >         rx_packets: 748
> >         tx_packets: 304
> >         rx_bytes: 81513
> >         tx_bytes: 33698
> >         lbrx_packets: 97
> >         lbtx_packets: 109
> >         lbrx_bytes: 12090
> >         lbtx_bytes: 12401
> > 
> > Tested-by: Kohei Enju <enjuk@amazon.com>
> 
> No need to resend, but I believe, you only add a Tested-by: tag, if the
> person differs from the author/Signed-off-by: tag.

+1

> 
> > Signed-off-by: Kohei Enju <enjuk@amazon.com>
> > ---
> >   drivers/net/ethernet/intel/igbvf/ethtool.c | 4 +++-
> >   1 file changed, 3 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/net/ethernet/intel/igbvf/ethtool.c b/drivers/net/ethernet/intel/igbvf/ethtool.c
> > index 773895c663fd..c6defc495f13 100644
> > --- a/drivers/net/ethernet/intel/igbvf/ethtool.c
> > +++ b/drivers/net/ethernet/intel/igbvf/ethtool.c
> > @@ -30,8 +30,10 @@ static const struct igbvf_stats igbvf_gstrings_stats[] = {
> >   	{ "rx_bytes", IGBVF_STAT(stats.gorc, stats.base_gorc) },
> >   	{ "tx_bytes", IGBVF_STAT(stats.gotc, stats.base_gotc) },
> >   	{ "multicast", IGBVF_STAT(stats.mprc, stats.base_mprc) },
> > -	{ "lbrx_bytes", IGBVF_STAT(stats.gorlbc, stats.base_gorlbc) },
> >   	{ "lbrx_packets", IGBVF_STAT(stats.gprlbc, stats.base_gprlbc) },
> > +	{ "lbtx_packets", IGBVF_STAT(stats.gptlbc, stats.base_gptlbc) },
> > +	{ "lbrx_bytes", IGBVF_STAT(stats.gorlbc, stats.base_gorlbc) },
> > +	{ "lbtx_bytes", IGBVF_STAT(stats.gotlbc, stats.base_gotlbc) },
> >   	{ "tx_restart_queue", IGBVF_STAT(restart_queue, zero_base) },
> >   	{ "tx_timeout_count", IGBVF_STAT(tx_timeout_count, zero_base) },
> >   	{ "rx_long_byte_count", IGBVF_STAT(stats.gorc, stats.base_gorc) },
> 
> Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>

Also +1

Reviewed-by: Simon Horman <horms@kernel.org>

Re: [Intel-wired-lan] [PATCH v1 iwl-next 2/2] igbvf: remove duplicated counter rx_long_byte_count from ethtool statistics

[Simon Horman]

On Wed, Aug 13, 2025 at 04:50:51PM +0900, Kohei Enju wrote:
> rx_long_byte_count shows the value of the GORC (Good Octets Received
> Count) register. However, the register value is already shown as
> rx_bytes and they always show the same value.
> 
> Remove rx_long_byte_count as the Intel ethernet driver e1000e did in
> commit 0a939912cf9c ("e1000e: cleanup redundant statistics counter").
> 
> Tested on Intel Corporation I350 Gigabit Network Connection.
> 
> Tested-by: Kohei Enju <enjuk@amazon.com>
> Signed-off-by: Kohei Enju <enjuk@amazon.com>

Reviewed-by: Simon Horman <horms@kernel.org>

Re: [Intel-wired-lan] [PATCH v1 iwl-next 1/2] igbvf: add lbtx_packets and lbtx_bytes to ethtool statistics

[Romanowski, Rafal]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf Of Simon
> Horman
> Sent: Tuesday, August 26, 2025 5:52 PM
> To: Paul Menzel <pmenzel@molgen.mpg.de>
> Cc: Kohei Enju <enjuk@amazon.com>; intel-wired-lan@lists.osuosl.org;
> netdev@vger.kernel.org; linux-kernel@vger.kernel.org; Nguyen, Anthony L
> <anthony.l.nguyen@intel.com>; Kitszel, Przemyslaw
> <przemyslaw.kitszel@intel.com>; Andrew Lunn <andrew+netdev@lunn.ch>;
> David S. Miller <davem@davemloft.net>; Eric Dumazet
> <edumazet@google.com>; Jakub Kicinski <kuba@kernel.org>; Paolo Abeni
> <pabeni@redhat.com>; kohei.enju@gmail.com
> Subject: Re: [Intel-wired-lan] [PATCH v1 iwl-next 1/2] igbvf: add lbtx_packets and
> lbtx_bytes to ethtool statistics
> 
> On Wed, Aug 13, 2025 at 10:18:29AM +0200, Paul Menzel wrote:
> > Dear Kohei,
> >
> >
> > Thank you for your patch.
> >
> > Am 13.08.25 um 09:50 schrieb Kohei Enju:
> > > Currently ethtool shows lbrx_packets and lbrx_bytes (Good RX
> > > Packets/Octets loopback Count), but doesn't show the TX-side
> > > equivalents (lbtx_packets and lbtx_bytes). Add visibility of those
> > > missing statistics by adding them to ethtool statistics.
> > >
> > > In addition, the order of lbrx_bytes and lbrx_packets is not
> > > consistent with non-loopback statistics (rx_packets, rx_bytes).
> > > Therefore, align the order by swapping positions of lbrx_bytes and
> lbrx_packets.
> > >
> > > Tested on Intel Corporation I350 Gigabit Network Connection.
> > >
> > > Before:
> > >    # ethtool -S ens5 | grep -E "x_(bytes|packets)"
> > >         rx_packets: 135
> > >         tx_packets: 106
> > >         rx_bytes: 16010
> > >         tx_bytes: 12451
> > >         lbrx_bytes: 1148
> > >         lbrx_packets: 12
> > >
> > > After:
> > >    # ethtool -S ens5 | grep -E "x_(bytes|packets)"
> > >         rx_packets: 748
> > >         tx_packets: 304
> > >         rx_bytes: 81513
> > >         tx_bytes: 33698
> > >         lbrx_packets: 97
> > >         lbtx_packets: 109
> > >         lbrx_bytes: 12090
> > >         lbtx_bytes: 12401
> > >
> > > Tested-by: Kohei Enju <enjuk@amazon.com>
> >
> > No need to resend, but I believe, you only add a Tested-by: tag, if
> > the person differs from the author/Signed-off-by: tag.
> 
> +1
> 
> >
> > > Signed-off-by: Kohei Enju <enjuk@amazon.com>
> > > ---
> > >   drivers/net/ethernet/intel/igbvf/ethtool.c | 4 +++-
> > >   1 file changed, 3 insertions(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/net/ethernet/intel/igbvf/ethtool.c
> > > b/drivers/net/ethernet/intel/igbvf/ethtool.c
> > > index 773895c663fd..c6defc495f13 100644
> > > --- a/drivers/net/ethernet/intel/igbvf/ethtool.c
> > > +++ b/drivers/net/ethernet/intel/igbvf/ethtool.c
> > > @@ -30,8 +30,10 @@ static const struct igbvf_stats igbvf_gstrings_stats[] = {
> > >   	{ "rx_bytes", IGBVF_STAT(stats.gorc, stats.base_gorc) },
> > >   	{ "tx_bytes", IGBVF_STAT(stats.gotc, stats.base_gotc) },
> > >   	{ "multicast", IGBVF_STAT(stats.mprc, stats.base_mprc) },
> > > -	{ "lbrx_bytes", IGBVF_STAT(stats.gorlbc, stats.base_gorlbc) },
> > >   	{ "lbrx_packets", IGBVF_STAT(stats.gprlbc, stats.base_gprlbc) },
> > > +	{ "lbtx_packets", IGBVF_STAT(stats.gptlbc, stats.base_gptlbc) },
> > > +	{ "lbrx_bytes", IGBVF_STAT(stats.gorlbc, stats.base_gorlbc) },
> > > +	{ "lbtx_bytes", IGBVF_STAT(stats.gotlbc, stats.base_gotlbc) },
> > >   	{ "tx_restart_queue", IGBVF_STAT(restart_queue, zero_base) },
> > >   	{ "tx_timeout_count", IGBVF_STAT(tx_timeout_count, zero_base) },
> > >   	{ "rx_long_byte_count", IGBVF_STAT(stats.gorc, stats.base_gorc)
> > > },
> >
> > Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
> 
> Also +1
> 
> Reviewed-by: Simon Horman <horms@kernel.org>


Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>