From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eran Ben Elisha Subject: [PATCH RFC net-next 14/19] net/mlx5: Add core dump register access functions Date: Mon, 31 Dec 2018 16:32:08 +0200 Message-ID: <1546266733-9512-15-git-send-email-eranbe@mellanox.com> References: <1546266733-9512-1-git-send-email-eranbe@mellanox.com> Cc: Moshe Shemesh , Aya Levin , Eran Ben Elisha , Tal Alon , Ariel Almog To: netdev@vger.kernel.org, "David S. Miller" , Jiri Pirko Return-path: Received: from mail-il-dmz.mellanox.com ([193.47.165.129]:52273 "EHLO mellanox.co.il" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726603AbeLaOcZ (ORCPT ); Mon, 31 Dec 2018 09:32:25 -0500 In-Reply-To: <1546266733-9512-1-git-send-email-eranbe@mellanox.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Moshe Shemesh Add access functions to core dump register to enable trigger FW core dump. Signed-off-by: Moshe Shemesh --- .../mellanox/mlx5/core/diag/fw_tracer.c | 31 +++++++++++++++++++ include/linux/mlx5/driver.h | 1 + include/linux/mlx5/mlx5_ifc.h | 17 +++++++++- 3 files changed, 48 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c index 6999f4486e9e..d0f8449019af 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c @@ -786,6 +786,37 @@ static void mlx5_fw_tracer_ownership_change(struct work_struct *work) mlx5_fw_tracer_start(tracer); } +static int mlx5_fw_tracer_set_core_dump_reg(struct mlx5_core_dev *dev, u32 *in, int size_in) +{ + u32 out[MLX5_ST_SZ_DW(core_dump_reg)] = {0}; + + if (!MLX5_CAP_DEBUG(dev, core_dump_general) && + !MLX5_CAP_DEBUG(dev, core_dump_qp)) + return -EOPNOTSUPP; + + return mlx5_core_access_reg(dev, in, size_in, out, sizeof(out), + MLX5_REG_CORE_DUMP, 0, 1); +} + +int mlx5_fw_tracer_trigger_core_dump_general(struct mlx5_core_dev *dev) +{ + struct mlx5_fw_tracer *tracer = dev->tracer; + u32 in[MLX5_ST_SZ_DW(core_dump_reg)] = {0}; + int err; + + if (!MLX5_CAP_DEBUG(dev, core_dump_general) || !tracer) + return -EOPNOTSUPP; + + MLX5_SET(core_dump_reg, in, core_dump_type, 0x0); + + err = mlx5_fw_tracer_set_core_dump_reg(dev, in, sizeof(in)); + if (err) + return err; + queue_work(tracer->work_queue, &tracer->handle_traces_work); + flush_workqueue(tracer->work_queue); + return 0; +} + /* Create software resources (Buffers, etc ..) */ struct mlx5_fw_tracer *mlx5_fw_tracer_create(struct mlx5_core_dev *dev) { diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 98c17e74fd4d..bedc9bc08963 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -108,6 +108,7 @@ enum { MLX5_REG_FPGA_CAP = 0x4022, MLX5_REG_FPGA_CTRL = 0x4023, MLX5_REG_FPGA_ACCESS_REG = 0x4024, + MLX5_REG_CORE_DUMP = 0x402e, MLX5_REG_PCAP = 0x5001, MLX5_REG_PMTU = 0x5003, MLX5_REG_PTYS = 0x5004, diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index 505a5f6cecdf..d1f7d4b2e3eb 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -671,7 +671,9 @@ struct mlx5_ifc_qos_cap_bits { }; struct mlx5_ifc_debug_cap_bits { - u8 reserved_at_0[0x20]; + u8 core_dump_general[0x1]; + u8 core_dump_qp[0x1]; + u8 reserved_at_2[0x1e]; u8 reserved_at_20[0x2]; u8 stall_detect[0x1]; @@ -2453,6 +2455,7 @@ union mlx5_ifc_hca_cap_union_bits { struct mlx5_ifc_e_switch_cap_bits e_switch_cap; struct mlx5_ifc_vector_calc_cap_bits vector_calc_cap; struct mlx5_ifc_qos_cap_bits qos_cap; + struct mlx5_ifc_debug_cap_bits debug_cap; struct mlx5_ifc_fpga_cap_bits fpga_cap; u8 reserved_at_0[0x8000]; }; @@ -8410,6 +8413,18 @@ struct mlx5_ifc_qcam_reg_bits { u8 reserved_at_1c0[0x80]; }; +struct mlx5_ifc_core_dump_reg_bits { + u8 reserved_at_0[0x18]; + u8 core_dump_type[0x8]; + + u8 reserved_at_20[0x30]; + u8 vhca_id[0x10]; + + u8 reserved_at_60[0x8]; + u8 qpn[0x18]; + u8 reserved_at_80[0x180]; +}; + struct mlx5_ifc_pcap_reg_bits { u8 reserved_at_0[0x8]; u8 local_port[0x8]; -- 2.17.1