From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=209.85.128.41 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794408281; b=jRnSdv//Smf855GKWaC68jrj7bVYH3yM517PNFOvnA90YrNl76qz2xo+lOw9iP8voXM3 5Gl7wit5zkxpKTU2Cke0Av9IggA3ZZ1Dah7g9juYOoT8KcjtX/U/z0uC6zNf1XU+bHb0l QoiNOcq0MYXcd5fsG7CQ6GlsldG8cZh3mOxpVK5CvZNUzuuutVVr0mYJSjzgYqzfJxosl ng0UwvxfTBhrItSdzNC8Nw8+vGFA7Ar33oKGkxC1SfJ6rSPZxKaGjhkRgp+TSEFv6PxQT oLu9ejhGBRujAEKYo1eYvIfFd2orKR37eksWRfZf31qUGcEu22B9WXLxGq4cK1F3B6g== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794408281; h=DMARC-Filter:Received:DKIM-Signature:X-Google-DKIM-Signature: X-Forwarded-Encrypted:X-Gm-Message-State:X-Gm-Gg:X-Received:Received: From:To:Cc:Subject:Date:Message-Id:X-Mailer:In-Reply-To:References: MIME-Version:Content-Transfer-Encoding; bh=LPsq33bOSJgVO/RNV124EKVcCGGrlMvdhjL7wfKrHy8=; b=kTYMoEQKqYXU361vK+QRMKxlaWejLBc5Pbu0hP3rFVh/1T+kUtW5MsinTvZrpEOagxCi Njj8niN+Qk8Y9Wzn3+b6jzSQrKqjBYlbA1340FATZNArlWCCJ0O8KD4qM2oN1Zn95svlf aFM21qaHbNTEkPDHYrseKGiYybx5s0Jd1BnyuuMbhHrbolqk4+G19CqFsEmqS8gDhoza8 fFYUv3bxcl8hKXqpYCuRap+xvYPmu9mBGEAgAYj8QGCvcyJT0/7FVwVTxlqCTPZHh8HEu GqVFrSqGklvRbfSxuwJMa62z1zsfEmcxzOFDufA8oFW5zbEEsaFJmfNU/33DZCAPygA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20260707 header.b=k+Swmzkm; arc=none smtp.remote-ip=209.85.128.41 Received: from mail-wm1-f41.google.com (mail-wm1-f41.google.com [209.85.128.41]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 901D760A3814 for ; Wed, 11 Nov 2026 14:44:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 901D760A3814 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20260707 header.b=k+Swmzkm Received: by mail-wm1-f41.google.com with SMTP id 5b1f17b1804b1-4a5087a5348so28432275e9.0 for ; Wed, 11 Nov 2026 06:44:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20260707; t=1794408280; x=1795013080; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=LPsq33bOSJgVO/RNV124EKVcCGGrlMvdhjL7wfKrHy8=; b=k+SwmzkmeruMyqeW5z6x/dsExshBytMDpxcO1OU4qU2kAfFNVuzAQtHDrHYdDz8Hvm OUTVWbCxynl3CtGFNMp8o95ip7H7qCrf4O6LhRcD83LHbP/PYgnVvUZaJmlWhGa5x4ye n61r0y9ZWtacYE/iYoFN16Awu2pzCeBbK6DKAMF0mtTVLikRG4NeubyuQlF5y78PQYbA HvE6ncIX0yo6Ivf0fAlIYHFj80507YdfWQS6mwo4eka9u/uBZjTqhRu3dyNjpovlWdeH LGurjKJgjfzKrmdes3ZpL4QHaBLzB4aG5TSa3q/Ry1xfjk3b0BtgqZPPlQoCFDt/oENg APVg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1794408280; x=1795013080; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=LPsq33bOSJgVO/RNV124EKVcCGGrlMvdhjL7wfKrHy8=; b=Hf+r6FUf7XMz7Q1wat1+VfRbxceYHk2uZTU7Og+fkJ0jSVoW7IC/wKisLo9lVpCUpN QlTGGIREw3oMbMRZSJJXXHgDx1OChNe90hzdIsg3RU4QS4/Ujxgp443CtcLrntikNvcx Fs+c7xjdngpZ6rG9TT8nSAHNL8mX76YfkQVVIwQ7I1dy77B6whsxWukv1/jtufE1vAuG OmlkDmP7tzz5xrmApBfHMPB/iyjfItNOfDnUz57Hw3TLiUOyxSshT9yiXdKE9l3aOGHQ FVeGL844K1xElvv1Y8z7jxBqRY/A88T4aCl8yswL0B4vaGO/ZmQ6ZONJZCfCECkYf+IF 0J8g== X-Forwarded-Encrypted: i=1; AL+hErHJBAhmvuqYWHi5Yxlfv83GnMsNKcRuCXZK+kqoEYrjcg0iM8F5Qu9H3dLvzenDYmz9+LhQzhw=@vger.kernel.org X-Gm-Message-State: APuU4Z9RcxrqsA+fixWvMw6dWSBxu+P6iAfIDXxBlAnbOtW1cx4LF+PQ ePx8kG9L3UfGKPFDMtewojX2fr3ne6VZDZOgw4uvWIf0LPA9z4MIjlDU X-Gm-Gg: AYBFou124QTInL9BabJIPQvrS9k2iVtKyZBH9bEIgUcRye0SEmgycAtiuK0bkBb+Jf1 6P5DgsFfBB0WMVheRruMzC2d4AqwaaGeMFx9RiB0B4ZuCJMruBXThYBSmt5XU10rotNA0mbGmLt gfIwA39UYeSyTdhHlTk4RZdgTeSo5EkeJkosuHyIfuF83ID8+/096BAdPmJDMGAYEBNPHr5mAY6 PBhqURWqT3mNqBtgIfW6vH2StiOq8CIBtkwa7drtt1uRtnrbP71p34wdSgW/bRhiIyuThJbVUuJ ixw7k15UN00F1OzpiL+WYmhDsBbj2li8g0LfhG7C1A9hMilww1K6DZN4cUkBo01nNGUdnUIzptM GAXgoyyDGK4dhBdVSOLdte1BSdEUO5S1u193vKedoKfrJMskSOadmf7euRFupLgUURuLH4SucMj wp9k2K6qmiS6jN6fggBy51y4BAMT8sCZQPk+z2qev9EbKJLxy2LasZlphzwBGVQtkzaPGW8vlFm aiEBlfUVVvSlr7Z8aB8M+iK888ZZuFLubaId4L/It+ctk8GlevAtxPb5vewLlnOTCtq3n/1uaLG R0UumbDrwyo4E9qh08GPtu2XMm7kCiI8fd8FFMgx8TC9ViUZ2vq3vzNM X-Received: by 2002:a05:600c:c83:b0:4a2:150f:1605 with SMTP id 5b1f17b1804b1-4ba0936f386mr49865155e9.24.1794408279927; Wed, 11 Nov 2026 06:44:39 -0800 (PST) Received: from dev.Default ([86.127.229.203]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4ba08de826asm46656495e9.0.2026.11.11.06.44.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Nov 2026 06:44:39 -0800 (PST) From: Agustin Santiago Isasmendi To: Navid Ghahremani , Andrew Lunn Cc: "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Junyang Han , =?UTF-8?q?Stefan=20D=C3=B6singer?= , Felix Fietkau , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH net-next 5/5] net: ethernet: zte: zx279128s: debugfs knobs for the WLAN ring Date: Wed, 11 Nov 2026 15:44:26 +0100 Message-Id: <20261111144426.1321237-6-isasmendi.agus@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20261111144426.1321237-1-isasmendi.agus@gmail.com> References: <20261111144426.1321237-1-isasmendi.agus@gmail.com> X-Mailing-List: netdev@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit wlan_state (counters and port table), wlan_inject_all (inject every frame of the bound interfaces, as the vendor firmware does, to exercise the ring and the trap path without flows) and wlan_bind (bind an interface by name). Testing aids, kept apart so they can be dropped. Assisted-by: LLM Signed-off-by: Agustin Santiago Isasmendi --- drivers/net/ethernet/zte/zx279128s-wlan.c | 34 +++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/drivers/net/ethernet/zte/zx279128s-wlan.c b/drivers/net/ethernet/zte/zx279128s-wlan.c index 6c6f6a36d34f..29970db47a41 100644 --- a/drivers/net/ethernet/zte/zx279128s-wlan.c +++ b/drivers/net/ethernet/zte/zx279128s-wlan.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include #include @@ -751,6 +752,38 @@ static int zx_wlan_state_show(struct seq_file *s, void *data) return 0; } +/* Bind an interface by name without waiting for a flow (testing) */ +static ssize_t zx_wlan_bind_write(struct file *file, const char __user *ubuf, + size_t count, loff_t *ppos) +{ + struct zx_eth_adapter *adapter = file->private_data; + char name[IFNAMSIZ + 1]; + struct net_device *vif; + int ret; + + if (count == 0 || count > IFNAMSIZ) + return -EINVAL; + if (copy_from_user(name, ubuf, count)) + return -EFAULT; + name[count] = 0; + strim(name); + vif = dev_get_by_name(dev_net(adapter->wlan->napi.dev), name); + if (!vif) + return -ENODEV; + mutex_lock(&adapter->ppe_lock); + ret = zx_wlan_is_ap(vif) ? zx_wlan_port_get(adapter->wlan, vif) : -EINVAL; + mutex_unlock(&adapter->ppe_lock); + dev_put(vif); + return ret < 0 ? ret : count; +} + +static const struct file_operations zx_wlan_bind_fops = { + .owner = THIS_MODULE, + .open = simple_open, + .write = zx_wlan_bind_write, + .llseek = noop_llseek, +}; + void zx_wlan_debugfs_init(struct zx_eth_adapter *adapter, struct dentry *dir) { if (!adapter->wlan) @@ -759,6 +792,7 @@ void zx_wlan_debugfs_init(struct zx_eth_adapter *adapter, struct dentry *dir) zx_wlan_state_show); debugfs_create_bool("wlan_inject_all", 0600, dir, &adapter->wlan->inject_all); + debugfs_create_file("wlan_bind", 0200, dir, adapter, &zx_wlan_bind_fops); } /* ---- init / fini --------------------------------------------------- */ -- 2.30.2