netdev - [PATCH mlx5-next 4/4] net/mlx5: Add nic_cap_reg and vhca_icm

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Message-ID: <20250109204231.1809851-5-tariqt@nvidia.com>
Date: Thu, 9 Jan 2025 22:42:31 +0200
From: Tariq Toukan <tariqt@...dia.com>
To: Saeed Mahameed <saeedm@...dia.com>, Leon Romanovsky <leonro@...dia.com>,
	Jason Gunthorpe <jgg@...dia.com>
CC: <netdev@...r.kernel.org>, <linux-rdma@...r.kernel.org>, Jakub Kicinski
	<kuba@...nel.org>, Gal Pressman <gal@...dia.com>, Mark Bloch
	<mbloch@...dia.com>, Moshe Shemesh <moshe@...dia.com>, Akiva Goldberger
	<agoldberger@...dia.com>, Tariq Toukan <tariqt@...dia.com>
Subject: [PATCH mlx5-next 4/4] net/mlx5: Add nic_cap_reg and vhca_icm_ctrl registers

From: Akiva Goldberger <agoldberger@...dia.com>

Add nic_cap_reg and vhca_icm_ctrl registers interfaces for exposing ICM
consumption.

Signed-off-by: Akiva Goldberger <agoldberger@...dia.com>
Reviewed-by: Moshe Shemesh <moshe@...dia.com>
Signed-off-by: Tariq Toukan <tariqt@...dia.com>
---
 include/linux/mlx5/driver.h   |  2 ++
 include/linux/mlx5/mlx5_ifc.h | 22 +++++++++++++++++++++-
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 8f6fe29bc4be..b957391529b3 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -163,7 +163,9 @@ enum {
 	MLX5_REG_MRTCQ		 = 0x9182,
 	MLX5_REG_SBCAM		 = 0xB01F,
 	MLX5_REG_RESOURCE_DUMP   = 0xC000,
+	MLX5_REG_NIC_CAP	 = 0xC00D,
 	MLX5_REG_DTOR            = 0xC00E,
+	MLX5_REG_VHCA_ICM_CTRL	 = 0xC010,
 };
 
 enum mlx5_qpts_trust_state {
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index d7c91f152735..2a40b1fd50e8 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -1830,7 +1830,7 @@ struct mlx5_ifc_cmd_hca_cap_bits {
 	u8         regexp_params[0x1];
 	u8         uar_sz[0x6];
 	u8         port_selection_cap[0x1];
-	u8         reserved_at_251[0x1];
+	u8         nic_cap_reg[0x1];
 	u8         umem_uid_0[0x1];
 	u8         reserved_at_253[0x5];
 	u8         log_pg_sz[0x8];
@@ -3327,6 +3327,14 @@ struct mlx5_ifc_dropped_packet_logged_bits {
 	u8         reserved_at_0[0xe0];
 };
 
+struct mlx5_ifc_nic_cap_reg_bits {
+	u8	   reserved_at_0[0x1a];
+	u8	   vhca_icm_ctrl[0x1];
+	u8	   reserved_at_1b[0x5];
+
+	u8	   reserved_at_20[0x60];
+};
+
 struct mlx5_ifc_default_timeout_bits {
 	u8         to_multiplier[0x3];
 	u8         reserved_at_3[0x9];
@@ -3363,6 +3371,18 @@ struct mlx5_ifc_dtor_reg_bits {
 	u8         reserved_at_1c0[0x20];
 };
 
+struct mlx5_ifc_vhca_icm_ctrl_reg_bits {
+	u8	   vhca_id_valid[0x1];
+	u8	   reserved_at_1[0xf];
+	u8	   vhca_id[0x10];
+
+	u8	   reserved_at_20[0xa0];
+
+	u8	   cur_alloc_icm[0x20];
+
+	u8	   reserved_at_e0[0x120];
+};
+
 enum {
 	MLX5_CQ_ERROR_SYNDROME_CQ_OVERRUN                 = 0x1,
 	MLX5_CQ_ERROR_SYNDROME_CQ_ACCESS_VIOLATION_ERROR  = 0x2,
-- 
2.45.0