netdev - [PATCH mlx5-next v1 2/8] net/mlx5: Expose IFC bits for TPH

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Message-ID: <10888bd6303ae05391328c8c1a52be181edee8ac.1752388126.git.leon@kernel.org>
Date: Sun, 13 Jul 2025 09:37:23 +0300
From: Leon Romanovsky <leon@...nel.org>
To: Jason Gunthorpe <jgg@...dia.com>
Cc: Yishai Hadas <yishaih@...dia.com>,
	Edward Srouji <edwards@...dia.com>,
	linux-rdma@...r.kernel.org,
	Moshe Shemesh <moshe@...dia.com>,
	netdev@...r.kernel.org,
	Saeed Mahameed <saeedm@...dia.com>,
	Tariq Toukan <tariqt@...dia.com>
Subject: [PATCH mlx5-next v1 2/8] net/mlx5: Expose IFC bits for TPH

From: Yishai Hadas <yishaih@...dia.com>

Expose IFC bits for the TPH functionality.

Signed-off-by: Yishai Hadas <yishaih@...dia.com>
Reviewed-by: Edward Srouji <edwards@...dia.com>
Reviewed-by: Moshe Shemesh <moshe@...dia.com>
Signed-off-by: Leon Romanovsky <leonro@...dia.com>
---
 include/linux/mlx5/mlx5_ifc.h | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 0e93f342be09..5bb124b8024c 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -1859,7 +1859,9 @@ struct mlx5_ifc_cmd_hca_cap_bits {
 	u8         reserved_at_280[0x10];
 	u8         max_wqe_sz_sq[0x10];
 
-	u8         reserved_at_2a0[0xb];
+	u8         reserved_at_2a0[0x7];
+	u8         mkey_pcie_tph[0x1];
+	u8         reserved_at_2a8[0x3];
 	u8         shampo[0x1];
 	u8         reserved_at_2ac[0x4];
 	u8         max_wqe_sz_rq[0x10];
@@ -4404,6 +4406,10 @@ enum {
 	MLX5_MKC_ACCESS_MODE_CROSSING = 0x6,
 };
 
+enum {
+	MLX5_MKC_PCIE_TPH_NO_STEERING_TAG_INDEX = 0,
+};
+
 struct mlx5_ifc_mkc_bits {
 	u8         reserved_at_0[0x1];
 	u8         free[0x1];
@@ -4455,7 +4461,11 @@ struct mlx5_ifc_mkc_bits {
 	u8         relaxed_ordering_read[0x1];
 	u8         log_page_size[0x6];
 
-	u8         reserved_at_1e0[0x20];
+	u8         reserved_at_1e0[0x5];
+	u8         pcie_tph_en[0x1];
+	u8         pcie_tph_ph[0x2];
+	u8         pcie_tph_steering_tag_index[0x8];
+	u8         reserved_at_1f0[0x10];
 };
 
 struct mlx5_ifc_pkey_bits {
-- 
2.50.1