netdev - [mlx5-next 16/17] net/mlx5: Add reset

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Date:   Tue, 22 Feb 2022 21:09:31 -0800
From:   Saeed Mahameed <saeed@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Jason Gunthorpe <jgg@...dia.com>
Cc:     Leon Romanovsky <leonro@...dia.com>, linux-rdma@...r.kernel.org,
        netdev@...r.kernel.org, Moshe Shemesh <moshe@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>
Subject: [mlx5-next 16/17] net/mlx5: Add reset_state field to MFRL register

From: Moshe Shemesh <moshe@...dia.com>

Add new field reset_state to MFRL register. This field expose current
state of sync reset for fw update. This field enables sharing with the
user more details on why fw activate failed in case it failed the sync
reset stage.

Signed-off-by: Moshe Shemesh <moshe@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...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 598ac3bcc901..8ca2d65ff789 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -9694,7 +9694,8 @@ struct mlx5_ifc_pcam_reg_bits {
 };
 
 struct mlx5_ifc_mcam_enhanced_features_bits {
-	u8         reserved_at_0[0x6b];
+	u8         reserved_at_0[0x6a];
+	u8         reset_state[0x1];
 	u8         ptpcyc2realtime_modify[0x1];
 	u8         reserved_at_6c[0x2];
 	u8         pci_status_and_power[0x1];
@@ -10375,6 +10376,14 @@ struct mlx5_ifc_mcda_reg_bits {
 	u8         data[][0x20];
 };
 
+enum {
+	MLX5_MFRL_REG_RESET_STATE_IDLE = 0,
+	MLX5_MFRL_REG_RESET_STATE_IN_NEGOTIATION = 1,
+	MLX5_MFRL_REG_RESET_STATE_RESET_IN_PROGRESS = 2,
+	MLX5_MFRL_REG_RESET_STATE_TIMEOUT = 3,
+	MLX5_MFRL_REG_RESET_STATE_NACK = 4,
+};
+
 enum {
 	MLX5_MFRL_REG_RESET_TYPE_FULL_CHIP = BIT(0),
 	MLX5_MFRL_REG_RESET_TYPE_NET_PORT_ALIVE = BIT(1),
@@ -10393,7 +10402,8 @@ struct mlx5_ifc_mfrl_reg_bits {
 	u8         pci_sync_for_fw_update_start[0x1];
 	u8         pci_sync_for_fw_update_resp[0x2];
 	u8         rst_type_sel[0x3];
-	u8         reserved_at_28[0x8];
+	u8         reserved_at_28[0x4];
+	u8         reset_state[0x4];
 	u8         reset_type[0x8];
 	u8         reset_level[0x8];
 };
-- 
2.35.1