From patchwork Thu Nov 30 00:28:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Nambiar, Amritha" X-Patchwork-Id: 13473687 X-Patchwork-Delegate: kuba@kernel.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="TyhsblNc" Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.11]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9475ECA for ; Wed, 29 Nov 2023 16:11:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1701303105; x=1732839105; h=subject:from:to:cc:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=kAopPp8F+TSD/k/tI5dXfXcf2aJO9wAamZ5z0Ns+WJ8=; b=TyhsblNcKsA3g725GuDaf8oazOcM58646Dbns63HM5OCfQ2zBHQnFzm8 smciR6Kf6eof5o4jHI2GSBMcAChGZ2jUCnt8kz3lHMTEi8Du6gX6yL1Zz ppFSvqoikgI8mhQwynKhVoLVfUbPA5Uy/pU0+VDHaadxORK+PIBqT1PF1 n2xsoEsww63dt4vFvIJVSqybUqbsXB/ginb6ydjoVqSFfxlYUenKxE1tC vq2rJnWL1HikARDd/7bj9P6/qW9KMLAKCeZTtzqNBSqyCjPrx5du5e+QG CVekq7Ec8tjCzkrY13u6JmL1AiDggYSE7f0P4jrhZDQuIdBpBzKrxW2x+ A==; X-IronPort-AV: E=McAfee;i="6600,9927,10909"; a="112119" X-IronPort-AV: E=Sophos;i="6.04,237,1695711600"; d="scan'208";a="112119" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Nov 2023 16:11:45 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10909"; a="772863996" X-IronPort-AV: E=Sophos;i="6.04,237,1695711600"; d="scan'208";a="772863996" Received: from anambiarhost.jf.intel.com ([10.166.29.163]) by fmsmga007.fm.intel.com with ESMTP; 29 Nov 2023 16:11:44 -0800 Subject: [net-next PATCH v10 09/11] netdev-genl: spec: Add PID in netdev netlink YAML spec From: Amritha Nambiar To: netdev@vger.kernel.org, kuba@kernel.org, pabeni@redhat.com Cc: edumazet@google.com, ast@kernel.org, sdf@google.com, lorenzo@kernel.org, tariqt@nvidia.com, daniel@iogearbox.net, anthony.l.nguyen@intel.com, lucien.xin@gmail.com, michael.chan@broadcom.com, sridhar.samudrala@intel.com, amritha.nambiar@intel.com Date: Wed, 29 Nov 2023 16:28:13 -0800 Message-ID: <170130409305.5198.16333345635103665952.stgit@anambiarhost.jf.intel.com> In-Reply-To: <170130378595.5198.158092030504280163.stgit@anambiarhost.jf.intel.com> References: <170130378595.5198.158092030504280163.stgit@anambiarhost.jf.intel.com> User-Agent: StGit/unknown-version 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 Add support in netlink spec(netdev.yaml) for PID of the NAPI thread. Add code generated from the spec. Signed-off-by: Amritha Nambiar Reviewed-by: Sridhar Samudrala --- Documentation/netlink/specs/netdev.yaml | 7 +++++++ include/uapi/linux/netdev.h | 1 + tools/include/uapi/linux/netdev.h | 1 + tools/net/ynl/generated/netdev-user.c | 6 ++++++ tools/net/ynl/generated/netdev-user.h | 2 ++ 5 files changed, 17 insertions(+) diff --git a/Documentation/netlink/specs/netdev.yaml b/Documentation/netlink/specs/netdev.yaml index 4b7d799bc51c..e0f19b072f4e 100644 --- a/Documentation/netlink/specs/netdev.yaml +++ b/Documentation/netlink/specs/netdev.yaml @@ -214,6 +214,12 @@ attribute-sets: name: irq doc: The associated interrupt vector number for the napi type: u32 + - + name: pid + doc: PID of the napi thread, if NAPI is configured to operate in + threaded mode. If NAPI is not in threaded mode (i.e. uses normal + softirq context), the attribute will be absent. + type: u32 - name: queue attributes: @@ -372,6 +378,7 @@ operations: - id - ifindex - irq + - pid dump: request: attributes: diff --git a/include/uapi/linux/netdev.h b/include/uapi/linux/netdev.h index edb46c800ce1..d815bb47321b 100644 --- a/include/uapi/linux/netdev.h +++ b/include/uapi/linux/netdev.h @@ -103,6 +103,7 @@ enum { NETDEV_A_NAPI_IFINDEX = 1, NETDEV_A_NAPI_ID, NETDEV_A_NAPI_IRQ, + NETDEV_A_NAPI_PID, __NETDEV_A_NAPI_MAX, NETDEV_A_NAPI_MAX = (__NETDEV_A_NAPI_MAX - 1) diff --git a/tools/include/uapi/linux/netdev.h b/tools/include/uapi/linux/netdev.h index edb46c800ce1..d815bb47321b 100644 --- a/tools/include/uapi/linux/netdev.h +++ b/tools/include/uapi/linux/netdev.h @@ -103,6 +103,7 @@ enum { NETDEV_A_NAPI_IFINDEX = 1, NETDEV_A_NAPI_ID, NETDEV_A_NAPI_IRQ, + NETDEV_A_NAPI_PID, __NETDEV_A_NAPI_MAX, NETDEV_A_NAPI_MAX = (__NETDEV_A_NAPI_MAX - 1) diff --git a/tools/net/ynl/generated/netdev-user.c b/tools/net/ynl/generated/netdev-user.c index e4680c939c66..726f5b29fdcb 100644 --- a/tools/net/ynl/generated/netdev-user.c +++ b/tools/net/ynl/generated/netdev-user.c @@ -151,6 +151,7 @@ struct ynl_policy_attr netdev_napi_policy[NETDEV_A_NAPI_MAX + 1] = { [NETDEV_A_NAPI_IFINDEX] = { .name = "ifindex", .type = YNL_PT_U32, }, [NETDEV_A_NAPI_ID] = { .name = "id", .type = YNL_PT_U32, }, [NETDEV_A_NAPI_IRQ] = { .name = "irq", .type = YNL_PT_U32, }, + [NETDEV_A_NAPI_PID] = { .name = "pid", .type = YNL_PT_U32, }, }; struct ynl_policy_nest netdev_napi_nest = { @@ -202,6 +203,11 @@ int netdev_page_pool_info_parse(struct ynl_parse_arg *yarg, return MNL_CB_ERROR; dst->_present.irq = 1; dst->irq = mnl_attr_get_u32(attr); + } else if (type == NETDEV_A_NAPI_PID) { + if (ynl_attr_validate(yarg, attr)) + return MNL_CB_ERROR; + dst->_present.pid = 1; + dst->pid = mnl_attr_get_u32(attr); } } diff --git a/tools/net/ynl/generated/netdev-user.h b/tools/net/ynl/generated/netdev-user.h index 33d5f8706fcb..41d811e3eef6 100644 --- a/tools/net/ynl/generated/netdev-user.h +++ b/tools/net/ynl/generated/netdev-user.h @@ -385,11 +385,13 @@ struct netdev_napi_get_rsp { __u32 id:1; __u32 ifindex:1; __u32 irq:1; + __u32 pid:1; } _present; __u32 id; __u32 ifindex; __u32 irq; + __u32 pid; }; void netdev_napi_get_rsp_free(struct netdev_napi_get_rsp *rsp);