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[net-next,v2,5/8] ravb: Add gstrings_stats and gstrings_size to struct ravb_hw_info

Message ID 20210802102654.5996-6-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 
The device stats strings for R-Car and RZ/G2L are different.

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".

Add structure variables gstrings_stats and gstrings_size to struct
ravb_hw_info, so that subsequent SoCs can be added without any code
changes in the ravb_get_strings 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      | 2 ++
 drivers/net/ethernet/renesas/ravb_main.c | 9 ++++++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

Comments

Andrew Lunn Aug. 2, 2021, 3:11 p.m. UTC | #1 
On Mon, Aug 02, 2021 at 11:26:51AM +0100, Biju Das wrote:
> The device stats strings for R-Car and RZ/G2L are different.
> 
> 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".
> 
> Add structure variables gstrings_stats and gstrings_size to struct
> ravb_hw_info, so that subsequent SoCs can be added without any code
> changes in the ravb_get_strings function.
> 
> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew
Sergei Shtylyov Aug. 4, 2021, 8:36 p.m. UTC | #2 
On 8/2/21 1:26 PM, Biju Das wrote:

> The device stats strings for R-Car and RZ/G2L are different.
> 
> 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".
> 
> Add structure variables gstrings_stats and gstrings_size to struct
> ravb_hw_info, so that subsequent SoCs can be added without any code
> changes in the ravb_get_strings function.
> 
> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

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

[...]

MBR, Sergei
diff mbox series

Patch

diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h
index a42c34eaebc2..b765b2b7d9e9 100644
--- a/drivers/net/ethernet/renesas/ravb.h
+++ b/drivers/net/ethernet/renesas/ravb.h
@@ -989,6 +989,8 @@  enum ravb_chip_id {
 };
 
 struct ravb_hw_info {
+	const char (*gstrings_stats)[ETH_GSTRING_LEN];
+	size_t gstrings_size;
 	enum ravb_chip_id chip_id;
 	int num_gstat_queue;
 	int num_tx_desc;
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index baeb868b07ed..7a69668cb512 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -1178,9 +1178,12 @@  static void ravb_get_ethtool_stats(struct net_device *ndev,
 
 static void ravb_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
 {
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+
 	switch (stringset) {
 	case ETH_SS_STATS:
-		memcpy(data, ravb_gstrings_stats, sizeof(ravb_gstrings_stats));
+		memcpy(data, info->gstrings_stats, info->gstrings_size);
 		break;
 	}
 }
@@ -1927,6 +1930,8 @@  static int ravb_mdio_release(struct ravb_private *priv)
 }
 
 static const struct ravb_hw_info ravb_gen3_hw_info = {
+	.gstrings_stats = ravb_gstrings_stats,
+	.gstrings_size = sizeof(ravb_gstrings_stats),
 	.chip_id = RCAR_GEN3,
 	.num_gstat_queue = NUM_RX_QUEUE,
 	.num_tx_desc = NUM_TX_DESC_GEN3,
@@ -1935,6 +1940,8 @@  static const struct ravb_hw_info ravb_gen3_hw_info = {
 };
 
 static const struct ravb_hw_info ravb_gen2_hw_info = {
+	.gstrings_stats = ravb_gstrings_stats,
+	.gstrings_size = sizeof(ravb_gstrings_stats),
 	.chip_id = RCAR_GEN2,
 	.num_gstat_queue = NUM_RX_QUEUE,
 	.num_tx_desc = NUM_TX_DESC_GEN2,