diff mbox series

[net-next,v2,4/8] ravb: Add stats_len to struct ravb_hw_info

Message ID 20210802102654.5996-5-biju.das.jz@bp.renesas.com (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series Add Gigabit Ethernet driver support | expand

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Commit Message

Biju Das Aug. 2, 2021, 10:26 a.m. UTC 
R-Car provides 30 device stats, whereas RZ/G2L provides only 15. In
addition, RZ/G2L has stats "rx_queue_0_csum_offload_errors" instead of
"rx_queue_0_missed_errors".

Replace RAVB_STATS_LEN macro with a structure variable stats_len to
struct ravb_hw_info, to support subsequent SoCs without any code changes
to the ravb_get_sset_count function.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
v2:
 * Incorporated Andrew and Sergei's review comments for making it smaller patch
   and provided detailed description.
---
 drivers/net/ethernet/renesas/ravb.h      | 1 +
 drivers/net/ethernet/renesas/ravb_main.c | 9 ++++++---
 2 files changed, 7 insertions(+), 3 deletions(-)

Comments

Sergey Shtylyov Aug. 3, 2021, 6:35 p.m. UTC | #1 
On 8/2/21 1:26 PM, Biju Das wrote:

> R-Car provides 30 device stats, whereas RZ/G2L provides only 15. In
> addition, RZ/G2L has stats "rx_queue_0_csum_offload_errors" instead of
> "rx_queue_0_missed_errors".
> 
> Replace RAVB_STATS_LEN macro with a structure variable stats_len to
> struct ravb_hw_info, to support subsequent SoCs without any code changes
> to the ravb_get_sset_count function.
> 
> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
[...]

   Finally a patch that I can agree with. :-)

Reviewed-by: ergei Shtylyov <sergei.shtylyov@gmail.com>

MBR, Sergei
Biju Das Aug. 3, 2021, 6:47 p.m. UTC | #2 
Hi Sergei,

> Subject: Re: [PATCH net-next v2 4/8] ravb: Add stats_len to struct
> ravb_hw_info
> 
> On 8/2/21 1:26 PM, Biju Das wrote:
> 
> > R-Car provides 30 device stats, whereas RZ/G2L provides only 15. In
> > addition, RZ/G2L has stats "rx_queue_0_csum_offload_errors" instead of
> > "rx_queue_0_missed_errors".
> >
> > Replace RAVB_STATS_LEN macro with a structure variable stats_len to
> > struct ravb_hw_info, to support subsequent SoCs without any code
> > changes to the ravb_get_sset_count function.
> >
> > Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
> > Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> [...]
> 
>    Finally a patch that I can agree with. :-)
> 
> Reviewed-by: ergei Shtylyov <sergei.shtylyov@gmail.com>
              ^Typo here.

Cheers,
Biju
Sergey Shtylyov Aug. 3, 2021, 7:20 p.m. UTC | #3 
On 8/3/21 9:47 PM, Biju Das wrote:

[...]
>>> R-Car provides 30 device stats, whereas RZ/G2L provides only 15. In
>>> addition, RZ/G2L has stats "rx_queue_0_csum_offload_errors" instead of
>>> "rx_queue_0_missed_errors".
>>>
>>> Replace RAVB_STATS_LEN macro with a structure variable stats_len to
>>> struct ravb_hw_info, to support subsequent SoCs without any code
>>> changes to the ravb_get_sset_count function.
>>>
>>> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
>>> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>> [...]
>>
>>    Finally a patch that I can agree with. :-)
>>
>> Reviewed-by: ergei Shtylyov <sergei.shtylyov@gmail.com>
>               ^Typo here.

   Sorry, here's a good one:

Reviewed-by: Sergei Shtylyov <sergei.shtylyov@gmail.com>

> Cheers,
> Biju

MBR, Sergei
diff mbox series

Patch

diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h
index 38552e0319d3..a42c34eaebc2 100644
--- a/drivers/net/ethernet/renesas/ravb.h
+++ b/drivers/net/ethernet/renesas/ravb.h
@@ -992,6 +992,7 @@  struct ravb_hw_info {
 	enum ravb_chip_id chip_id;
 	int num_gstat_queue;
 	int num_tx_desc;
+	int stats_len;
 	size_t skb_sz;
 };
 
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 30132693edd7..baeb868b07ed 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -1133,13 +1133,14 @@  static const char ravb_gstrings_stats[][ETH_GSTRING_LEN] = {
 	"rx_queue_1_over_errors",
 };
 
-#define RAVB_STATS_LEN	ARRAY_SIZE(ravb_gstrings_stats)
-
 static int ravb_get_sset_count(struct net_device *netdev, int sset)
 {
+	struct ravb_private *priv = netdev_priv(netdev);
+	const struct ravb_hw_info *info = priv->info;
+
 	switch (sset) {
 	case ETH_SS_STATS:
-		return RAVB_STATS_LEN;
+		return info->stats_len;
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -1929,6 +1930,7 @@  static const struct ravb_hw_info ravb_gen3_hw_info = {
 	.chip_id = RCAR_GEN3,
 	.num_gstat_queue = NUM_RX_QUEUE,
 	.num_tx_desc = NUM_TX_DESC_GEN3,
+	.stats_len = ARRAY_SIZE(ravb_gstrings_stats),
 	.skb_sz = RX_BUF_SZ + RAVB_ALIGN - 1,
 };
 
@@ -1936,6 +1938,7 @@  static const struct ravb_hw_info ravb_gen2_hw_info = {
 	.chip_id = RCAR_GEN2,
 	.num_gstat_queue = NUM_RX_QUEUE,
 	.num_tx_desc = NUM_TX_DESC_GEN2,
+	.stats_len = ARRAY_SIZE(ravb_gstrings_stats),
 	.skb_sz = RX_BUF_SZ + RAVB_ALIGN - 1,
 };