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Thu, 10 Oct 2024 06:06:50 -0700 (PDT) From: Jiri Pirko To: netdev@vger.kernel.org Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, donald.hunter@gmail.com, vadim.fedorenko@linux.dev, arkadiusz.kubalewski@intel.com, saeedm@nvidia.com, leon@kernel.org, tariqt@nvidia.com Subject: [PATCH net-next v2 1/2] dpll: add clock quality level attribute and op Date: Thu, 10 Oct 2024 15:06:45 +0200 Message-ID: <20241010130646.399365-2-jiri@resnulli.us> X-Mailer: git-send-email 2.46.1 In-Reply-To: <20241010130646.399365-1-jiri@resnulli.us> References: <20241010130646.399365-1-jiri@resnulli.us> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org From: Jiri Pirko In order to allow driver expose quality level of the clock it is running, introduce a new netlink attr with enum to carry it to the userspace. Also, introduce an op the dpll netlink code calls into the driver to obtain the value. Signed-off-by: Jiri Pirko Reviewed-by: Donald Hunter Reviewed-by: Vadim Fedorenko --- v1->v2: - extended quality enum documentation - added "itu" prefix to the enum values --- Documentation/netlink/specs/dpll.yaml | 32 +++++++++++++++++++++++++++ drivers/dpll/dpll_netlink.c | 22 ++++++++++++++++++ include/linux/dpll.h | 4 ++++ include/uapi/linux/dpll.h | 23 +++++++++++++++++++ 4 files changed, 81 insertions(+) diff --git a/Documentation/netlink/specs/dpll.yaml b/Documentation/netlink/specs/dpll.yaml index f2894ca35de8..d64a3c4490d3 100644 --- a/Documentation/netlink/specs/dpll.yaml +++ b/Documentation/netlink/specs/dpll.yaml @@ -85,6 +85,34 @@ definitions: This may happen for example if dpll device was previously locked on an input pin of type PIN_TYPE_SYNCE_ETH_PORT. render-max: true + - + type: enum + name: clock-quality-level + doc: | + level of quality of a clock device. The current list is defined + according to the table 11-7 contained in ITU-T G.8264/Y.1364 + document. One may extend this list freely by other ITU-T defined + clock qualities, or different ones defined by another + standardization body (for those, please use different prefix). + entries: + - + name: itu-prc + value: 1 + - + name: itu-ssu-a + - + name: itu-ssu-b + - + name: itu-eec1 + - + name: itu-prtc + - + name: itu-eprtc + - + name: itu-eeec + - + name: itu-eprc + render-max: true - type: const name: temp-divider @@ -252,6 +280,10 @@ attribute-sets: name: lock-status-error type: u32 enum: lock-status-error + - + name: clock-quality-level + type: u32 + enum: clock-quality-level - name: pin enum-name: dpll_a_pin diff --git a/drivers/dpll/dpll_netlink.c b/drivers/dpll/dpll_netlink.c index fc0280dcddd1..689a6d0ff049 100644 --- a/drivers/dpll/dpll_netlink.c +++ b/drivers/dpll/dpll_netlink.c @@ -169,6 +169,25 @@ dpll_msg_add_temp(struct sk_buff *msg, struct dpll_device *dpll, return 0; } +static int +dpll_msg_add_clock_quality_level(struct sk_buff *msg, struct dpll_device *dpll, + struct netlink_ext_ack *extack) +{ + const struct dpll_device_ops *ops = dpll_device_ops(dpll); + enum dpll_clock_quality_level ql; + int ret; + + if (!ops->clock_quality_level_get) + return 0; + ret = ops->clock_quality_level_get(dpll, dpll_priv(dpll), &ql, extack); + if (ret) + return ret; + if (nla_put_u32(msg, DPLL_A_CLOCK_QUALITY_LEVEL, ql)) + return -EMSGSIZE; + + return 0; +} + static int dpll_msg_add_pin_prio(struct sk_buff *msg, struct dpll_pin *pin, struct dpll_pin_ref *ref, @@ -557,6 +576,9 @@ dpll_device_get_one(struct dpll_device *dpll, struct sk_buff *msg, if (ret) return ret; ret = dpll_msg_add_lock_status(msg, dpll, extack); + if (ret) + return ret; + ret = dpll_msg_add_clock_quality_level(msg, dpll, extack); if (ret) return ret; ret = dpll_msg_add_mode(msg, dpll, extack); diff --git a/include/linux/dpll.h b/include/linux/dpll.h index 81f7b623d0ba..e99cdb8ab02c 100644 --- a/include/linux/dpll.h +++ b/include/linux/dpll.h @@ -26,6 +26,10 @@ struct dpll_device_ops { struct netlink_ext_ack *extack); int (*temp_get)(const struct dpll_device *dpll, void *dpll_priv, s32 *temp, struct netlink_ext_ack *extack); + int (*clock_quality_level_get)(const struct dpll_device *dpll, + void *dpll_priv, + enum dpll_clock_quality_level *ql, + struct netlink_ext_ack *extack); }; struct dpll_pin_ops { diff --git a/include/uapi/linux/dpll.h b/include/uapi/linux/dpll.h index b0654ade7b7e..6b9db2e69f32 100644 --- a/include/uapi/linux/dpll.h +++ b/include/uapi/linux/dpll.h @@ -79,6 +79,28 @@ enum dpll_lock_status_error { DPLL_LOCK_STATUS_ERROR_MAX = (__DPLL_LOCK_STATUS_ERROR_MAX - 1) }; +/** + * enum dpll_clock_quality_level - level of quality of a clock device. The + * current list is defined according to the table 11-7 contained in ITU-T + * G.8264/Y.1364 document. One may extend this list freely by other ITU-T + * defined clock qualities, or different ones defined by another + * standardization body (for those, please use different prefix). + */ +enum dpll_clock_quality_level { + DPLL_CLOCK_QUALITY_LEVEL_ITU_PRC = 1, + DPLL_CLOCK_QUALITY_LEVEL_ITU_SSU_A, + DPLL_CLOCK_QUALITY_LEVEL_ITU_SSU_B, + DPLL_CLOCK_QUALITY_LEVEL_ITU_EEC1, + DPLL_CLOCK_QUALITY_LEVEL_ITU_PRTC, + DPLL_CLOCK_QUALITY_LEVEL_ITU_EPRTC, + DPLL_CLOCK_QUALITY_LEVEL_ITU_EEEC, + DPLL_CLOCK_QUALITY_LEVEL_ITU_EPRC, + + /* private: */ + __DPLL_CLOCK_QUALITY_LEVEL_MAX, + DPLL_CLOCK_QUALITY_LEVEL_MAX = (__DPLL_CLOCK_QUALITY_LEVEL_MAX - 1) +}; + #define DPLL_TEMP_DIVIDER 1000 /** @@ -180,6 +202,7 @@ enum dpll_a { DPLL_A_TEMP, DPLL_A_TYPE, DPLL_A_LOCK_STATUS_ERROR, + DPLL_A_CLOCK_QUALITY_LEVEL, __DPLL_A_MAX, DPLL_A_MAX = (__DPLL_A_MAX - 1) From patchwork Thu Oct 10 13:06:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiri Pirko X-Patchwork-Id: 13830094 X-Patchwork-Delegate: kuba@kernel.org Received: from mail-ej1-f52.google.com (mail-ej1-f52.google.com [209.85.218.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 05D791C6F45 for ; 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Thu, 10 Oct 2024 06:06:53 -0700 (PDT) Received: from localhost ([37.48.49.80]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-5c9371533c4sm745604a12.54.2024.10.10.06.06.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Oct 2024 06:06:52 -0700 (PDT) From: Jiri Pirko To: netdev@vger.kernel.org Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, donald.hunter@gmail.com, vadim.fedorenko@linux.dev, arkadiusz.kubalewski@intel.com, saeedm@nvidia.com, leon@kernel.org, tariqt@nvidia.com Subject: [PATCH net-next v2 2/2] net/mlx5: DPLL, Add clock quality level op implementation Date: Thu, 10 Oct 2024 15:06:46 +0200 Message-ID: <20241010130646.399365-3-jiri@resnulli.us> X-Mailer: git-send-email 2.46.1 In-Reply-To: <20241010130646.399365-1-jiri@resnulli.us> References: <20241010130646.399365-1-jiri@resnulli.us> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org From: Jiri Pirko Use MSECQ register to query clock quality from firmware. Implement the dpll op and fill-up the quality level value properly. Signed-off-by: Jiri Pirko --- v1->v2: - added "itu" prefix to the enum values --- .../net/ethernet/mellanox/mlx5/core/dpll.c | 82 +++++++++++++++++++ 1 file changed, 82 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/dpll.c b/drivers/net/ethernet/mellanox/mlx5/core/dpll.c index 904e08de852e..ccb7477d77b6 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/dpll.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/dpll.c @@ -166,9 +166,91 @@ static int mlx5_dpll_device_mode_get(const struct dpll_device *dpll, return 0; } +enum { + MLX5_DPLL_SSM_CODE_PRC = 0b0010, + MLX5_DPLL_SSM_CODE_SSU_A = 0b0100, + MLX5_DPLL_SSM_CODE_SSU_B = 0b1000, + MLX5_DPLL_SSM_CODE_EEC1 = 0b1011, + MLX5_DPLL_SSM_CODE_PRTC = 0b0010, + MLX5_DPLL_SSM_CODE_EPRTC = 0b0010, + MLX5_DPLL_SSM_CODE_EEEC = 0b1011, + MLX5_DPLL_SSM_CODE_EPRC = 0b0010, +}; + +enum { + MLX5_DPLL_ENHANCED_SSM_CODE_PRC = 0xff, + MLX5_DPLL_ENHANCED_SSM_CODE_SSU_A = 0xff, + MLX5_DPLL_ENHANCED_SSM_CODE_SSU_B = 0xff, + MLX5_DPLL_ENHANCED_SSM_CODE_EEC1 = 0xff, + MLX5_DPLL_ENHANCED_SSM_CODE_PRTC = 0x20, + MLX5_DPLL_ENHANCED_SSM_CODE_EPRTC = 0x21, + MLX5_DPLL_ENHANCED_SSM_CODE_EEEC = 0x22, + MLX5_DPLL_ENHANCED_SSM_CODE_EPRC = 0x23, +}; + +#define __MLX5_DPLL_SSM_COMBINED_CODE(ssm_code, enhanced_ssm_code) \ + ((ssm_code) | ((enhanced_ssm_code) << 8)) + +#define MLX5_DPLL_SSM_COMBINED_CODE(type) \ + __MLX5_DPLL_SSM_COMBINED_CODE(MLX5_DPLL_SSM_CODE_##type, \ + MLX5_DPLL_ENHANCED_SSM_CODE_##type) + +static int mlx5_dpll_clock_quality_level_get(const struct dpll_device *dpll, + void *priv, + enum dpll_clock_quality_level *ql, + struct netlink_ext_ack *extack) +{ + u8 network_option, ssm_code, enhanced_ssm_code; + u32 out[MLX5_ST_SZ_DW(msecq_reg)] = {}; + u32 in[MLX5_ST_SZ_DW(msecq_reg)] = {}; + struct mlx5_dpll *mdpll = priv; + int err; + + err = mlx5_core_access_reg(mdpll->mdev, in, sizeof(in), + out, sizeof(out), MLX5_REG_MSECQ, 0, 0); + if (err) + return err; + network_option = MLX5_GET(msecq_reg, out, network_option); + if (network_option != 1) + goto errout; + ssm_code = MLX5_GET(msecq_reg, out, local_ssm_code); + enhanced_ssm_code = MLX5_GET(msecq_reg, out, local_enhanced_ssm_code); + + switch (__MLX5_DPLL_SSM_COMBINED_CODE(ssm_code, enhanced_ssm_code)) { + case MLX5_DPLL_SSM_COMBINED_CODE(PRC): + *ql = DPLL_CLOCK_QUALITY_LEVEL_ITU_PRC; + return 0; + case MLX5_DPLL_SSM_COMBINED_CODE(SSU_A): + *ql = DPLL_CLOCK_QUALITY_LEVEL_ITU_SSU_A; + return 0; + case MLX5_DPLL_SSM_COMBINED_CODE(SSU_B): + *ql = DPLL_CLOCK_QUALITY_LEVEL_ITU_SSU_B; + return 0; + case MLX5_DPLL_SSM_COMBINED_CODE(EEC1): + *ql = DPLL_CLOCK_QUALITY_LEVEL_ITU_EEC1; + return 0; + case MLX5_DPLL_SSM_COMBINED_CODE(PRTC): + *ql = DPLL_CLOCK_QUALITY_LEVEL_ITU_PRTC; + return 0; + case MLX5_DPLL_SSM_COMBINED_CODE(EPRTC): + *ql = DPLL_CLOCK_QUALITY_LEVEL_ITU_EPRTC; + return 0; + case MLX5_DPLL_SSM_COMBINED_CODE(EEEC): + *ql = DPLL_CLOCK_QUALITY_LEVEL_ITU_EEEC; + return 0; + case MLX5_DPLL_SSM_COMBINED_CODE(EPRC): + *ql = DPLL_CLOCK_QUALITY_LEVEL_ITU_EPRC; + return 0; + } +errout: + NL_SET_ERR_MSG_MOD(extack, "Invalid clock quality level obtained from firmware\n"); + return -EINVAL; +} + static const struct dpll_device_ops mlx5_dpll_device_ops = { .lock_status_get = mlx5_dpll_device_lock_status_get, .mode_get = mlx5_dpll_device_mode_get, + .clock_quality_level_get = mlx5_dpll_clock_quality_level_get, }; static int mlx5_dpll_pin_direction_get(const struct dpll_pin *pin,