netdev - [V2 net-next 06/15] net/mlx5: Add RX buffer fullness counters infrastructure

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Message-Id: <20170820134916.10222-7-saeedm@mellanox.com>
Date:   Sun, 20 Aug 2017 16:49:07 +0300
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, Leon Romanovsky <leonro@...lanox.com>,
        Gal Pressman <galp@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>
Subject: [V2 net-next 06/15] net/mlx5: Add RX buffer fullness counters infrastructure

From: Gal Pressman <galp@...lanox.com>

Add capability bit in PCAM register and counters to PPCNT register.

Signed-off-by: Gal Pressman <galp@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 include/linux/mlx5/mlx5_ifc.h | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index ba533b39c885..cf7ff52c594e 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -1538,7 +1538,17 @@ struct mlx5_ifc_eth_extended_cntrs_grp_data_layout_bits {
 
 	u8         port_transmit_wait_low[0x20];
 
-	u8         reserved_at_40[0x780];
+	u8         reserved_at_40[0x100];
+
+	u8         rx_buffer_almost_full_high[0x20];
+
+	u8         rx_buffer_almost_full_low[0x20];
+
+	u8         rx_buffer_full_high[0x20];
+
+	u8         rx_buffer_full_low[0x20];
+
+	u8         reserved_at_1c0[0x600];
 };
 
 struct mlx5_ifc_eth_3635_cntrs_grp_data_layout_bits {
@@ -7723,8 +7733,9 @@ struct mlx5_ifc_peir_reg_bits {
 };
 
 struct mlx5_ifc_pcam_enhanced_features_bits {
-	u8         reserved_at_0[0x7c];
+	u8         reserved_at_0[0x7b];
 
+	u8         rx_buffer_fullness_counters[0x1];
 	u8         ptys_connector_type[0x1];
 	u8         reserved_at_7d[0x1];
 	u8         ppcnt_discard_group[0x1];
-- 
2.13.0