From nobody Mon Apr 6 16:23:50 2026 Received: from mail-pl1-f227.google.com (mail-pl1-f227.google.com [209.85.214.227]) (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 A0E171E0DD8 for ; Thu, 19 Mar 2026 05:52:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.227 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899544; cv=none; b=Votz4pNN8d5DPbEWSE/3Ava1VwS0bcb4As8hz2o0C6MEH8AJ8SgOUjopSI/WzWRtjblkVpSiIftX3Y2A6A156OhoZtMKzh4s2rmHoF4z84O7Z1g9srrZN8dBKQ0ktCZvNK/B7n8Y6fW0mwts4FbF83Dpzxwf4hYiKZFjLNzvcKw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899544; c=relaxed/simple; bh=GHj4gnVfqLy1HeDDSWCa+CadU5S47idNlQd8tGCXirA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=JVeke+30Cu5f5g5njzEmB05bBXHZZ/YejIgUuT8nuieGTQgynw8bayT1tGboYEk4i5IDDZMdEGsfa5Bru6ezUb30A1i5hBWKdqWIA+RzN4iLQVMzdkh7KZwjUeTyUtf1lc6ZkBUr/5DhU2WXD3VjK2oIcWTc4Mj9R1ImIKAIEw4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com; spf=fail smtp.mailfrom=broadcom.com; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b=SIsP9/JS; arc=none smtp.client-ip=209.85.214.227 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=broadcom.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="SIsP9/JS" Received: by mail-pl1-f227.google.com with SMTP id d9443c01a7336-2ab232cc803so2198785ad.3 for ; Wed, 18 Mar 2026 22:52:23 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1773899543; x=1774504343; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=LnswXBu4PbkASqLN0BN/EfUVHnS5f3Y0TgpC6FNdc64=; b=pcxre6gY/XnBWgj5YzmtsG7oZZz4eSMy/mpKfC6/Ya+pIkWAKKfVaRnMPN0vBKxVe0 SBKYDCSZUKbuE+4d2GDGbPwlPE/t86ZmLdUr0mjZb+99OKNcMkJ93HFCbAOZ+flic3GG 5dJNECiNCaN1T9bjcQR6UfplKl3nNNSdFiL0CwRXJBuxB7l5JDiXo0Tmi/A8sUfGNFj+ NKUT4ZsLPFMszBhBM26OcpwUdROMQbS677dQdcOA1luKnXPnw+FGRNdr+79GjbbvzYXR DEA+mUXcC8hgt7qNCiWtNC0icTat+n5JyJeMTKN/47xfHIKcqeiKfZ8yymLLryDkpEQG xNkQ== X-Forwarded-Encrypted: i=1; AJvYcCW3cd5m3aqyYb4zcLA6b3OBfqDIbPjIKJoi89J7Y9Z9fHQmoalnTdZYHGEYOY2iXyjF/97sVwetE2ffZSo=@vger.kernel.org X-Gm-Message-State: AOJu0Ywr2Ri5Z5HAkBoEhCVVsNdPtP2QaZcV8uDxGc04MpAW8zVjuHre q5odc9wjyDQF1LuLfFaj62VLF/M42CEVjY4ofAU/jMZDLGbW2B41IPmJ0F1XNYpe51R/YZmiKes nYqN7ypLqjkdmdtXaaDqcsOoxd2NvjlrDp1wqblJgJ5EjKHXUoumtMJr7OQRPSgNxDpqe7k3Ugn Jd5pUfseE0y/Dm1d8/9wl9ly2PiE5DmkVoXMJhLDqNBx0XOr7HQNMlF6ioMs9+oicbviu1cNKH9 YAzB9rsC/OV2rj4OQ== X-Gm-Gg: ATEYQzxr1FQk8ra6tIxQrwgOtZyiZke2pj74dUKSt+F/5vW3OM7uTCsLeBZDcNtv+lr TUJgKdyptOGKtjb0nm+UKRt/U0FVp6nudnakOhoiRpIp9rqAoh5nhH6ei/KsZkcyMy3JuTAoA8K QikIpovSpavCSiGCSiIPI7u1y45A9UVhtqvhoqOrS7n95Z2xHV1eRu+l1Cz9I6aY10tvmaU8TZ/ xmM65HlggLtKWLs/gwt6WWX6gTtyCcXoIx/k3GEZdIrO0rI8XUpjuOyF3g8iVTyjfERNzweBJG3 paFsjBOWQO4x73kcS1Trb7x22Bq5jSZ1fKrV6xq5UY8imfGZ42iBUUqyqtp5vr8KoVCX6C6jZXY ii2ZD24f6lL1he4v0OUkzw1hXE/1zHUJyDkxxMOyaTmTquQsEkDdJUHj1k9L8q3+NCPNpUDM708 F8dfpxSuA3THPQb+gCACsnw3ass71aPPltzI0LARo84LRPo9/ybqfXxao= X-Received: by 2002:a17:903:11c7:b0:2a4:8cd:c3cf with SMTP id d9443c01a7336-2b06e4020e9mr61872225ad.49.1773899542912; Wed, 18 Mar 2026 22:52:22 -0700 (PDT) Received: from smtp-us-east1-p01-i01-si01.dlp.protect.broadcom.com (address-144-49-247-22.dlp.protect.broadcom.com. [144.49.247.22]) by smtp-relay.gmail.com with ESMTPS id d9443c01a7336-2b06e5f45e3sm5303985ad.26.2026.03.18.22.52.22 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 18 Mar 2026 22:52:22 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-yx1-f69.google.com with SMTP id 956f58d0204a3-64ad0c50067so1775558d50.1 for ; Wed, 18 Mar 2026 22:52:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1773899541; x=1774504341; 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; bh=LnswXBu4PbkASqLN0BN/EfUVHnS5f3Y0TgpC6FNdc64=; b=SIsP9/JSMvBhJguBqVOrrdTAveHP2XPTOubwuIsJnNlAvVS2Eq4K1862YOCtwW/Ssb YfISvKqcSTh4hktBHyJboQvEvbiHZvOdtTN56fNls3YBPYXXQrVcpJ5pQQZQwVMJAJ2v HfQOz9e8ECJp9p2bEVIGuiGbqY4z3s1ot/HW0= X-Forwarded-Encrypted: i=1; AJvYcCWixODD7XH+QMvbIAe835sjCdy1qOJHMfUJuiz500i93BKkWpj/OVuhGkBFaxWA7QLMJd82maiem8oNUpA=@vger.kernel.org X-Received: by 2002:a53:acd0:0:20b0:64c:ed48:dc84 with SMTP id 956f58d0204a3-64e915e1f9bmr5461704d50.63.1773899541656; Wed, 18 Mar 2026 22:52:21 -0700 (PDT) X-Received: by 2002:a53:acd0:0:20b0:64c:ed48:dc84 with SMTP id 956f58d0204a3-64e915e1f9bmr5461693d50.63.1773899541207; Wed, 18 Mar 2026 22:52:21 -0700 (PDT) Received: from localhost.localdomain ([192.19.203.250]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-64e91a1cd32sm2918980d50.2.2026.03.18.22.52.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Mar 2026 22:52:20 -0700 (PDT) From: Vikas Gupta To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, michael.chan@broadcom.com, pavan.chebbi@broadcom.com, vsrama-krishna.nemani@broadcom.com, rajashekar.hudumula@broadcom.com, ajit.khaparde@broadcom.com, Bhargava Marreddy , Vikas Gupta Subject: [PATCH net-next v8 01/10] bng_en: add per-PF workqueue, timer, and slow-path task Date: Thu, 19 Mar 2026 11:21:15 +0530 Message-ID: <20260319055124.1350670-2-vikas.gupta@broadcom.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20260319055124.1350670-1-vikas.gupta@broadcom.com> References: <20260319055124.1350670-1-vikas.gupta@broadcom.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e Content-Type: text/plain; charset="utf-8" From: Bhargava Marreddy Add a dedicated single-thread workqueue and a timer for each PF to drive deferred slow-path work such as link event handling and stats collection. The timer is stopped via timer_delete_sync() when interrupts are disabled and restarted on open. The open and close paths now start and drain these resources. Signed-off-by: Bhargava Marreddy Reviewed-by: Vikas Gupta --- .../net/ethernet/broadcom/bnge/bnge_netdev.c | 74 ++++++++++++++++++- .../net/ethernet/broadcom/bnge/bnge_netdev.h | 12 ++- 2 files changed, 84 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c b/drivers/net= /ethernet/broadcom/bnge/bnge_netdev.c index a20dc3ca640c..edbb42efb70b 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c @@ -101,6 +101,36 @@ static int bnge_alloc_ring_stats(struct bnge_net *bn) return rc; } =20 +static void bnge_timer(struct timer_list *t) +{ + struct bnge_net *bn =3D timer_container_of(bn, t, timer); + struct bnge_dev *bd =3D bn->bd; + + if (!netif_running(bn->netdev) || + !test_bit(BNGE_STATE_OPEN, &bd->state)) + return; + + /* Periodic work added by later patches */ + + mod_timer(&bn->timer, jiffies + bn->current_interval); +} + +static void bnge_sp_task(struct work_struct *work) +{ + struct bnge_net *bn =3D container_of(work, struct bnge_net, sp_task); + struct bnge_dev *bd =3D bn->bd; + + netdev_lock(bn->netdev); + if (!test_bit(BNGE_STATE_OPEN, &bd->state)) { + netdev_unlock(bn->netdev); + return; + } + + /* Event handling work added by later patches */ + + netdev_unlock(bn->netdev); +} + static void bnge_free_nq_desc_arr(struct bnge_nq_ring_info *nqr) { struct bnge_ring_struct *ring =3D &nqr->ring_struct; @@ -2507,6 +2537,9 @@ static int bnge_open_core(struct bnge_net *bn) bnge_enable_int(bn); =20 bnge_tx_enable(bn); + + mod_timer(&bn->timer, jiffies + bn->current_interval); + return 0; =20 err_free_irq: @@ -2542,6 +2575,8 @@ static void bnge_close_core(struct bnge_net *bn) bnge_tx_disable(bn); =20 clear_bit(BNGE_STATE_OPEN, &bd->state); + + timer_delete_sync(&bn->timer); bnge_shutdown_nic(bn); bnge_disable_napi(bn); bnge_free_all_rings_bufs(bn); @@ -2690,6 +2725,23 @@ static void bnge_init_ring_params(struct bnge_net *b= n) bn->netdev->cfg->hds_thresh =3D max(BNGE_DEFAULT_RX_COPYBREAK, rx_size); } =20 +static struct workqueue_struct * +bnge_create_workqueue_thread(struct bnge_dev *bd, const char *thread_name) +{ + struct workqueue_struct *wq; + char *wq_name; + + wq_name =3D kasprintf(GFP_KERNEL, "%s-%s", thread_name, + dev_name(bd->dev)); + if (!wq_name) + return NULL; + + wq =3D create_singlethread_workqueue(wq_name); + kfree(wq_name); + + return wq; +} + int bnge_netdev_alloc(struct bnge_dev *bd, int max_irqs) { struct net_device *netdev; @@ -2774,6 +2826,17 @@ int bnge_netdev_alloc(struct bnge_dev *bd, int max_i= rqs) if (bd->tso_max_segs) netif_set_tso_max_segs(netdev, bd->tso_max_segs); =20 + INIT_WORK(&bn->sp_task, bnge_sp_task); + timer_setup(&bn->timer, bnge_timer, 0); + bn->current_interval =3D BNGE_TIMER_INTERVAL; + + bn->bnge_pf_wq =3D bnge_create_workqueue_thread(bd, "bnge_pf_wq"); + if (!bn->bnge_pf_wq) { + netdev_err(netdev, "Unable to create workqueue.\n"); + rc =3D -ENOMEM; + goto err_netdev; + } + bn->rx_ring_size =3D BNGE_DEFAULT_RX_RING_SIZE; bn->tx_ring_size =3D BNGE_DEFAULT_TX_RING_SIZE; bn->rx_dir =3D DMA_FROM_DEVICE; @@ -2789,11 +2852,13 @@ int bnge_netdev_alloc(struct bnge_dev *bd, int max_= irqs) rc =3D register_netdev(netdev); if (rc) { dev_err(bd->dev, "Register netdev failed rc: %d\n", rc); - goto err_netdev; + goto err_free_workq; } =20 return 0; =20 +err_free_workq: + destroy_workqueue(bn->bnge_pf_wq); err_netdev: free_netdev(netdev); return rc; @@ -2802,8 +2867,15 @@ int bnge_netdev_alloc(struct bnge_dev *bd, int max_i= rqs) void bnge_netdev_free(struct bnge_dev *bd) { struct net_device *netdev =3D bd->netdev; + struct bnge_net *bn; + + bn =3D netdev_priv(netdev); =20 unregister_netdev(netdev); + + cancel_work_sync(&bn->sp_task); + destroy_workqueue(bn->bnge_pf_wq); + free_netdev(netdev); bd->netdev =3D NULL; } diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h b/drivers/net= /ethernet/broadcom/bnge/bnge_netdev.h index 70f1a7c24814..d2ccee725454 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h +++ b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h @@ -224,6 +224,12 @@ struct bnge_tpa_info { #define BNGE_NQ_HDL_TYPE(hdl) (((hdl) & BNGE_NQ_HDL_TYPE_MASK) >> \ BNGE_NQ_HDL_TYPE_SHIFT) =20 +enum bnge_net_state { + BNGE_STATE_NAPI_DISABLED, +}; + +#define BNGE_TIMER_INTERVAL HZ + struct bnge_net { struct bnge_dev *bd; struct net_device *netdev; @@ -281,13 +287,17 @@ struct bnge_net { u32 stats_coal_ticks; =20 unsigned long state; -#define BNGE_STATE_NAPI_DISABLED 0 =20 u32 msg_enable; u16 max_tpa; __be16 vxlan_port; __be16 nge_port; __be16 vxlan_gpe_port; + + unsigned int current_interval; + struct timer_list timer; + struct workqueue_struct *bnge_pf_wq; + struct work_struct sp_task; }; =20 #define BNGE_DEFAULT_RX_RING_SIZE 511 --=20 2.47.1 From nobody Mon Apr 6 16:23:50 2026 Received: from mail-pf1-f227.google.com (mail-pf1-f227.google.com [209.85.210.227]) (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 A7B55307AD5 for ; Thu, 19 Mar 2026 05:52:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.227 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899553; cv=none; b=QOkzrd2RPX4jnlJ2qKa7C8UwGX+BW5NNJVAHfLYp8I3X5wBisw4wBtCqxIRwS/lzF2aZOtvR1ioWoErhUwtro9xePFAzWZwaw/7ysDJOuin7jfbqGjwsq4Ig9g4dfhJT1LlAoXVCp2OdHyCR3bvYslGLu+CmjiIDbjvEV5BnN+8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899553; c=relaxed/simple; bh=c1rYMhVNfEbevcGsUuRlFCv+Q3cTpd/0mwLdHos+0Ao=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Pj43ovAt9Y8Bo+xlh0Z+eo8OMmG4uZFHJLn3RXRAVT+JT9XfcXGaAmeAg2w4+RHEipBIM1kTignaDzGbQY1wV4r3EUhTTLUu2faSk5bFq5hT7oRpYaetev/POXGTzgMMJv68QKF6VypnM1TsCArkrL/qguQa2CguCpO4VfmJoS0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com; spf=fail smtp.mailfrom=broadcom.com; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b=KW3v2hGx; arc=none smtp.client-ip=209.85.210.227 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=broadcom.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="KW3v2hGx" Received: by mail-pf1-f227.google.com with SMTP id d2e1a72fcca58-82985f42664so437647b3a.0 for ; Wed, 18 Mar 2026 22:52:30 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1773899550; x=1774504350; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=xGVe2tatFung2y8iceQCf4kkVFuwsFcrA6X6uDmhnOg=; b=B389Qq4zNOqhlY/PV18WOQco1I0A3ot0odX3EdzMcpc6BgHOzPR9th97mDZWxaXS8N KmseM1eZ3m3OsrVOZ5zq1GVgR0p044N1Phgc5Mse0kEQf8eFw+808+fjRG9ePa3Q6ulq jdL8nd3PkDnbR/JpmJZ5THj4pz8JV4/CetiUobwq/OJ3DGv21reCt0WKVxCAXF0VrmdA GZi7L50MDeqnq3XULc2fshI5IDEEuPyUOQ3U/+OCTWzwwhV8DJFI3gqkrBqd6hiVcLkh Zx1vKnhzY5B4KTbTbzLZhWtvzFdrdg/B60t1lpf0aegiutMrWMtOAdSpDBtYpurBohES 7Nag== X-Forwarded-Encrypted: i=1; AJvYcCV43cc3uqqYnqn3bgfp4HUUGHsb+uL6DYb1XKjQLM5D0HqC00FSy6egTFp88DBYpBxFbde1ahUBqZ3aTfM=@vger.kernel.org X-Gm-Message-State: AOJu0Yxe9sUspmrlh8Z76ZqNFrYx/T+W525UFXqrCvvPNchtubPO1Ml/ WBi/9/uoRER1ZuYJwI4GTjsnON/ABRWiyXel8pY/UAjlYa+WXDrvl5BnjfgsXy1qP/wQJLRJ6ix K+ztTCu87OMABQse+Ejaq7pDfDjCwKDth5DBQMyXIpC+bLYVVIKTyxrPgYpCipK3eNdsuK1x000 b/eRVUHzKRWCk5Y3Qi95lXHOTqBbO1Ynv3kPBevwAnTmt9pIkz7xzwKsRStk0dJWzpySvHbOAUn kVrW9W74nyxHk19Bw== X-Gm-Gg: ATEYQzymNCmdc1PVoNjgZWZ7f9d/fe9Me0gxGQ6Mnh0W/jRRnNMNc6bAfzms0mduHnE OM/AtUqPyX72W3KOFHAkIyaY5anCR3cBL33XUhR6REDnNa4Blc3yphRzpMYbboP65E4EkcYLkyt zvjlR05KI3V+fjK67MvZQrUx1uP78BMlIEWrQZlvdT/W74TH+oIvt8jkwINWkMDeqwHdiPWd+VZ RgWmsEoDFv3NK0ib11mGXtCsk7tjRp/osi4Adw0SoYyACzHFefxHuqfSgJRDvzFEpLGGT3RrrX2 G/rxfGJdSOclfao7m8TY4OST6bJ/PD5wxWzky9o4d3c3yPIKLd+zlWeIhdLIP3No0Edh38rn/Sk lh9wg/liIsIbj+Tt4fK7GeuVz17oEdvSIOrog9lmxQ1jVO+Rwq3fLPaEuxaOBk2+EX28o/+Lx8v MyPAHZIOTphBhgZFYItw9O15sVp7hqeRPEGJTgvkX6lSqzLav05G5JrK6gQA== X-Received: by 2002:a05:6a21:338d:b0:398:840d:39aa with SMTP id adf61e73a8af0-39b99daf6ecmr5397032637.29.1773899549937; Wed, 18 Mar 2026 22:52:29 -0700 (PDT) Received: from smtp-us-east1-p01-i01-si01.dlp.protect.broadcom.com (address-144-49-247-117.dlp.protect.broadcom.com. [144.49.247.117]) by smtp-relay.gmail.com with ESMTPS id 41be03b00d2f7-c741e10b61dsm403289a12.4.2026.03.18.22.52.29 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 18 Mar 2026 22:52:29 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-yx1-f69.google.com with SMTP id 956f58d0204a3-64c46202950so1965332d50.3 for ; Wed, 18 Mar 2026 22:52:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1773899548; x=1774504348; 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; bh=xGVe2tatFung2y8iceQCf4kkVFuwsFcrA6X6uDmhnOg=; b=KW3v2hGxSjY410fi6d1h3SsMwZu4Xv6rzMS5oDR6ujWNDIFYxA1iDOCea0Kru+h+3L i/9y6crF9cDdbvaS6i3kU3ORqcZdz4J3KI/yjnm6lga1CwljhPQQCRUxeBJiXUDW9mKs 70/lIvzbrthw+VVspJ2l5jTwqtC2foopgZtf0= X-Forwarded-Encrypted: i=1; AJvYcCUH4ONqIp+yrcBhdQ4wKrto9RKfGWHrOOG/113XIgAHXibRxb33IOGKjPRLF2qwEef81PLyvP73a5RokvE=@vger.kernel.org X-Received: by 2002:a53:c04a:0:20b0:63f:9ff9:1493 with SMTP id 956f58d0204a3-64e912fb6c8mr5144689d50.2.1773899548106; Wed, 18 Mar 2026 22:52:28 -0700 (PDT) X-Received: by 2002:a53:c04a:0:20b0:63f:9ff9:1493 with SMTP id 956f58d0204a3-64e912fb6c8mr5144675d50.2.1773899547507; Wed, 18 Mar 2026 22:52:27 -0700 (PDT) Received: from localhost.localdomain ([192.19.203.250]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-64e91a1cd32sm2918980d50.2.2026.03.18.22.52.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Mar 2026 22:52:27 -0700 (PDT) From: Vikas Gupta To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, michael.chan@broadcom.com, pavan.chebbi@broadcom.com, vsrama-krishna.nemani@broadcom.com, rajashekar.hudumula@broadcom.com, ajit.khaparde@broadcom.com, Bhargava Marreddy , Vikas Gupta Subject: [PATCH net-next v8 02/10] bng_en: query PHY capabilities and report link status Date: Thu, 19 Mar 2026 11:21:16 +0530 Message-ID: <20260319055124.1350670-3-vikas.gupta@broadcom.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20260319055124.1350670-1-vikas.gupta@broadcom.com> References: <20260319055124.1350670-1-vikas.gupta@broadcom.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e Content-Type: text/plain; charset="utf-8" From: Bhargava Marreddy Query PHY capabilities and supported speeds from firmware, retrieve current link state (speed, duplex, pause, FEC), and log the information. Seed initial link state during probe. Signed-off-by: Bhargava Marreddy Reviewed-by: Vikas Gupta --- drivers/net/ethernet/broadcom/bnge/Makefile | 3 +- drivers/net/ethernet/broadcom/bnge/bnge.h | 10 + .../ethernet/broadcom/bnge/bnge_hwrm_lib.c | 227 +++++++++ .../ethernet/broadcom/bnge/bnge_hwrm_lib.h | 5 + .../net/ethernet/broadcom/bnge/bnge_link.c | 463 ++++++++++++++++++ .../net/ethernet/broadcom/bnge/bnge_link.h | 193 ++++++++ .../net/ethernet/broadcom/bnge/bnge_netdev.c | 52 +- .../net/ethernet/broadcom/bnge/bnge_netdev.h | 12 + 8 files changed, 962 insertions(+), 3 deletions(-) create mode 100644 drivers/net/ethernet/broadcom/bnge/bnge_link.c create mode 100644 drivers/net/ethernet/broadcom/bnge/bnge_link.h diff --git a/drivers/net/ethernet/broadcom/bnge/Makefile b/drivers/net/ethe= rnet/broadcom/bnge/Makefile index fa604ee20264..8e07cb307d21 100644 --- a/drivers/net/ethernet/broadcom/bnge/Makefile +++ b/drivers/net/ethernet/broadcom/bnge/Makefile @@ -11,4 +11,5 @@ bng_en-y :=3D bnge_core.o \ bnge_netdev.o \ bnge_ethtool.o \ bnge_auxr.o \ - bnge_txrx.o + bnge_txrx.o \ + bnge_link.o diff --git a/drivers/net/ethernet/broadcom/bnge/bnge.h b/drivers/net/ethern= et/broadcom/bnge/bnge.h index f376913aa321..83ee4749cc70 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge.h +++ b/drivers/net/ethernet/broadcom/bnge/bnge.h @@ -94,6 +94,11 @@ struct bnge_queue_info { u8 queue_profile; }; =20 +#define BNGE_PHY_FLAGS2_SHIFT 8 +#define BNGE_PHY_FL_NO_FCS PORT_PHY_QCAPS_RESP_FLAGS_NO_FCS +#define BNGE_PHY_FL_SPEEDS2 \ + (PORT_PHY_QCAPS_RESP_FLAGS2_SPEEDS2_SUPPORTED << 8) + struct bnge_dev { struct device *dev; struct pci_dev *pdev; @@ -207,6 +212,11 @@ struct bnge_dev { =20 struct bnge_auxr_priv *aux_priv; struct bnge_auxr_dev *auxr_dev; + + struct bnge_link_info link_info; + + /* Copied from flags and flags2 in hwrm_port_phy_qcaps_output */ + u32 phy_flags; }; =20 static inline bool bnge_is_roce_en(struct bnge_dev *bd) diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.c b/drivers/n= et/ethernet/broadcom/bnge/bnge_hwrm_lib.c index c46da3413417..1cc62883d3c7 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.c @@ -981,6 +981,233 @@ void bnge_hwrm_vnic_ctx_free_one(struct bnge_dev *bd, vnic->fw_rss_cos_lb_ctx[ctx_idx] =3D INVALID_HW_RING_ID; } =20 +static bool bnge_phy_qcaps_no_speed(struct hwrm_port_phy_qcaps_output *res= p) +{ + return !resp->supported_speeds_auto_mode && + !resp->supported_speeds_force_mode && + !resp->supported_pam4_speeds_auto_mode && + !resp->supported_pam4_speeds_force_mode && + !resp->supported_speeds2_auto_mode && + !resp->supported_speeds2_force_mode; +} + +int bnge_hwrm_phy_qcaps(struct bnge_dev *bd) +{ + struct bnge_link_info *link_info =3D &bd->link_info; + struct hwrm_port_phy_qcaps_output *resp; + struct hwrm_port_phy_qcaps_input *req; + int rc; + + rc =3D bnge_hwrm_req_init(bd, req, HWRM_PORT_PHY_QCAPS); + if (rc) + return rc; + + resp =3D bnge_hwrm_req_hold(bd, req); + rc =3D bnge_hwrm_req_send(bd, req); + if (rc) + goto hwrm_phy_qcaps_exit; + + bd->phy_flags =3D resp->flags | + (le16_to_cpu(resp->flags2) << BNGE_PHY_FLAGS2_SHIFT); + + if (bnge_phy_qcaps_no_speed(resp)) { + link_info->phy_enabled =3D false; + netdev_warn(bd->netdev, "Ethernet link disabled\n"); + } else if (!link_info->phy_enabled) { + link_info->phy_enabled =3D true; + netdev_info(bd->netdev, "Ethernet link enabled\n"); + /* Phy re-enabled, reprobe the speeds */ + link_info->support_auto_speeds =3D 0; + link_info->support_pam4_auto_speeds =3D 0; + link_info->support_auto_speeds2 =3D 0; + } + + if (resp->supported_speeds_auto_mode) + link_info->support_auto_speeds =3D + le16_to_cpu(resp->supported_speeds_auto_mode); + if (resp->supported_pam4_speeds_auto_mode) + link_info->support_pam4_auto_speeds =3D + le16_to_cpu(resp->supported_pam4_speeds_auto_mode); + if (resp->supported_speeds2_auto_mode) + link_info->support_auto_speeds2 =3D + le16_to_cpu(resp->supported_speeds2_auto_mode); + + bd->port_count =3D resp->port_cnt; + +hwrm_phy_qcaps_exit: + bnge_hwrm_req_drop(bd, req); + return rc; +} + +int bnge_hwrm_set_link_setting(struct bnge_net *bn, bool set_pause) +{ + struct hwrm_port_phy_cfg_input *req; + struct bnge_dev *bd =3D bn->bd; + int rc; + + rc =3D bnge_hwrm_req_init(bd, req, HWRM_PORT_PHY_CFG); + if (rc) + return rc; + + if (set_pause) + bnge_hwrm_set_pause_common(bn, req); + + bnge_hwrm_set_link_common(bn, req); + + return bnge_hwrm_req_send(bd, req); +} + +int bnge_update_link(struct bnge_net *bn, bool chng_link_state) +{ + struct hwrm_port_phy_qcfg_output *resp; + struct hwrm_port_phy_qcfg_input *req; + struct bnge_link_info *link_info; + struct bnge_dev *bd =3D bn->bd; + bool support_changed; + u8 link_state; + int rc; + + link_info =3D &bd->link_info; + link_state =3D link_info->link_state; + + rc =3D bnge_hwrm_req_init(bd, req, HWRM_PORT_PHY_QCFG); + if (rc) + return rc; + + resp =3D bnge_hwrm_req_hold(bd, req); + rc =3D bnge_hwrm_req_send(bd, req); + if (rc) { + bnge_hwrm_req_drop(bd, req); + return rc; + } + + memcpy(&link_info->phy_qcfg_resp, resp, sizeof(*resp)); + link_info->phy_link_status =3D resp->link; + link_info->duplex =3D resp->duplex_state; + link_info->pause =3D resp->pause; + link_info->auto_mode =3D resp->auto_mode; + link_info->auto_pause_setting =3D resp->auto_pause; + link_info->lp_pause =3D resp->link_partner_adv_pause; + link_info->force_pause_setting =3D resp->force_pause; + link_info->duplex_setting =3D resp->duplex_cfg; + if (link_info->phy_link_status =3D=3D BNGE_LINK_LINK) { + link_info->link_speed =3D le16_to_cpu(resp->link_speed); + if (bd->phy_flags & BNGE_PHY_FL_SPEEDS2) + link_info->active_lanes =3D resp->active_lanes; + } else { + link_info->link_speed =3D 0; + link_info->active_lanes =3D 0; + } + link_info->force_link_speed =3D le16_to_cpu(resp->force_link_speed); + link_info->force_pam4_link_speed =3D + le16_to_cpu(resp->force_pam4_link_speed); + link_info->force_link_speed2 =3D le16_to_cpu(resp->force_link_speeds2); + link_info->support_speeds =3D le16_to_cpu(resp->support_speeds); + link_info->support_pam4_speeds =3D le16_to_cpu(resp->support_pam4_speeds); + link_info->support_speeds2 =3D le16_to_cpu(resp->support_speeds2); + link_info->auto_link_speeds =3D le16_to_cpu(resp->auto_link_speed_mask); + link_info->auto_pam4_link_speeds =3D + le16_to_cpu(resp->auto_pam4_link_speed_mask); + link_info->auto_link_speeds2 =3D le16_to_cpu(resp->auto_link_speeds2); + link_info->lp_auto_link_speeds =3D + le16_to_cpu(resp->link_partner_adv_speeds); + link_info->lp_auto_pam4_link_speeds =3D + resp->link_partner_pam4_adv_speeds; + link_info->media_type =3D resp->media_type; + link_info->phy_type =3D resp->phy_type; + link_info->phy_addr =3D resp->eee_config_phy_addr & + PORT_PHY_QCFG_RESP_PHY_ADDR_MASK; + link_info->module_status =3D resp->module_status; + + link_info->fec_cfg =3D le16_to_cpu(resp->fec_cfg); + link_info->active_fec_sig_mode =3D resp->active_fec_signal_mode; + + if (chng_link_state) { + if (link_info->phy_link_status =3D=3D BNGE_LINK_LINK) + link_info->link_state =3D BNGE_LINK_STATE_UP; + else + link_info->link_state =3D BNGE_LINK_STATE_DOWN; + if (link_state !=3D link_info->link_state) + bnge_report_link(bd); + } else { + /* always link down if not required to update link state */ + link_info->link_state =3D BNGE_LINK_STATE_DOWN; + } + bnge_hwrm_req_drop(bd, req); + + if (!BNGE_PHY_CFG_ABLE(bd)) + return 0; + + support_changed =3D bnge_support_speed_dropped(bn); + if (support_changed && (bn->eth_link_info.autoneg & BNGE_AUTONEG_SPEED)) + rc =3D bnge_hwrm_set_link_setting(bn, true); + return rc; +} + +int bnge_hwrm_set_pause(struct bnge_net *bn) +{ + struct bnge_ethtool_link_info *elink_info =3D &bn->eth_link_info; + struct hwrm_port_phy_cfg_input *req; + struct bnge_dev *bd =3D bn->bd; + bool pause_autoneg; + int rc; + + rc =3D bnge_hwrm_req_init(bd, req, HWRM_PORT_PHY_CFG); + if (rc) + return rc; + + pause_autoneg =3D !!(elink_info->autoneg & BNGE_AUTONEG_FLOW_CTRL); + + /* Prepare PHY pause-advertisement or forced-pause settings. */ + bnge_hwrm_set_pause_common(bn, req); + + /* Prepare speed/autoneg settings */ + if (pause_autoneg || elink_info->force_link_chng) + bnge_hwrm_set_link_common(bn, req); + + rc =3D bnge_hwrm_req_send(bd, req); + if (!rc && !pause_autoneg) { + /* Since changing of pause setting, with pause autoneg off, + * doesn't trigger any link change event, the driver needs to + * update the current MAC pause upon successful return of the + * phy_cfg command. + */ + bd->link_info.force_pause_setting =3D + bd->link_info.pause =3D elink_info->req_flow_ctrl; + bd->link_info.auto_pause_setting =3D 0; + if (!elink_info->force_link_chng) + bnge_report_link(bd); + } + elink_info->force_link_chng =3D false; + + return rc; +} + +int bnge_hwrm_shutdown_link(struct bnge_dev *bd) +{ + struct hwrm_port_phy_cfg_input *req; + int rc; + + if (!BNGE_PHY_CFG_ABLE(bd)) + return 0; + + rc =3D bnge_hwrm_req_init(bd, req, HWRM_PORT_PHY_CFG); + if (rc) + return rc; + + req->flags =3D cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_FORCE_LINK_DWN); + rc =3D bnge_hwrm_req_send(bd, req); + if (!rc) { + /* Device is not obliged to link down in certain scenarios, + * even when forced. Setting the state unknown is consistent + * with driver startup and will force link state to be + * reported during subsequent open based on PORT_PHY_QCFG. + */ + bd->link_info.link_state =3D BNGE_LINK_STATE_UNKNOWN; + } + return rc; +} + void bnge_hwrm_stat_ctx_free(struct bnge_net *bn) { struct hwrm_stat_ctx_free_input *req; diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.h b/drivers/n= et/ethernet/broadcom/bnge/bnge_hwrm_lib.h index 38b046237feb..86ca3ac2244b 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.h +++ b/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.h @@ -57,4 +57,9 @@ int hwrm_ring_alloc_send_msg(struct bnge_net *bn, int bnge_hwrm_set_async_event_cr(struct bnge_dev *bd, int idx); int bnge_hwrm_vnic_set_tpa(struct bnge_dev *bd, struct bnge_vnic_info *vni= c, u32 tpa_flags); +int bnge_update_link(struct bnge_net *bn, bool chng_link_state); +int bnge_hwrm_phy_qcaps(struct bnge_dev *bd); +int bnge_hwrm_set_link_setting(struct bnge_net *bn, bool set_pause); +int bnge_hwrm_set_pause(struct bnge_net *bn); +int bnge_hwrm_shutdown_link(struct bnge_dev *bd); #endif /* _BNGE_HWRM_LIB_H_ */ diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_link.c b/drivers/net/e= thernet/broadcom/bnge/bnge_link.c new file mode 100644 index 000000000000..e5a7b48f6a3f --- /dev/null +++ b/drivers/net/ethernet/broadcom/bnge/bnge_link.c @@ -0,0 +1,463 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2026 Broadcom. + +#include + +#include "bnge.h" +#include "bnge_link.h" +#include "bnge_hwrm_lib.h" + +static u32 bnge_fw_to_ethtool_speed(u16 fw_link_speed) +{ + switch (fw_link_speed) { + case BNGE_LINK_SPEED_50GB: + case BNGE_LINK_SPEED_50GB_PAM4: + return SPEED_50000; + case BNGE_LINK_SPEED_100GB: + case BNGE_LINK_SPEED_100GB_PAM4: + case BNGE_LINK_SPEED_100GB_PAM4_112: + return SPEED_100000; + case BNGE_LINK_SPEED_200GB: + case BNGE_LINK_SPEED_200GB_PAM4: + case BNGE_LINK_SPEED_200GB_PAM4_112: + return SPEED_200000; + case BNGE_LINK_SPEED_400GB: + case BNGE_LINK_SPEED_400GB_PAM4: + case BNGE_LINK_SPEED_400GB_PAM4_112: + return SPEED_400000; + case BNGE_LINK_SPEED_800GB: + case BNGE_LINK_SPEED_800GB_PAM4_112: + return SPEED_800000; + default: + return SPEED_UNKNOWN; + } +} + +static void bnge_set_auto_speed(struct bnge_net *bn) +{ + struct bnge_ethtool_link_info *elink_info =3D &bn->eth_link_info; + struct bnge_link_info *link_info; + struct bnge_dev *bd =3D bn->bd; + + link_info =3D &bd->link_info; + + if (bd->phy_flags & BNGE_PHY_FL_SPEEDS2) { + elink_info->advertising =3D link_info->auto_link_speeds2; + return; + } + elink_info->advertising =3D link_info->auto_link_speeds; + elink_info->advertising_pam4 =3D link_info->auto_pam4_link_speeds; +} + +static void bnge_set_force_speed(struct bnge_net *bn) +{ + struct bnge_ethtool_link_info *elink_info =3D &bn->eth_link_info; + struct bnge_link_info *link_info; + struct bnge_dev *bd =3D bn->bd; + + link_info =3D &bd->link_info; + + if (bd->phy_flags & BNGE_PHY_FL_SPEEDS2) { + elink_info->req_link_speed =3D link_info->force_link_speed2; + switch (elink_info->req_link_speed) { + case BNGE_LINK_SPEED_50GB_PAM4: + case BNGE_LINK_SPEED_100GB_PAM4: + case BNGE_LINK_SPEED_200GB_PAM4: + case BNGE_LINK_SPEED_400GB_PAM4: + elink_info->req_signal_mode =3D BNGE_SIG_MODE_PAM4; + break; + case BNGE_LINK_SPEED_100GB_PAM4_112: + case BNGE_LINK_SPEED_200GB_PAM4_112: + case BNGE_LINK_SPEED_400GB_PAM4_112: + case BNGE_LINK_SPEED_800GB_PAM4_112: + elink_info->req_signal_mode =3D BNGE_SIG_MODE_PAM4_112; + break; + default: + elink_info->req_signal_mode =3D BNGE_SIG_MODE_NRZ; + break; + } + } else if (link_info->force_pam4_link_speed) { + elink_info->req_link_speed =3D link_info->force_pam4_link_speed; + elink_info->req_signal_mode =3D BNGE_SIG_MODE_PAM4; + } else { + elink_info->req_link_speed =3D link_info->force_link_speed; + elink_info->req_signal_mode =3D BNGE_SIG_MODE_NRZ; + } +} + +void bnge_init_ethtool_link_settings(struct bnge_net *bn) +{ + struct bnge_ethtool_link_info *elink_info =3D &bn->eth_link_info; + struct bnge_link_info *link_info; + struct bnge_dev *bd =3D bn->bd; + + link_info =3D &bd->link_info; + + if (BNGE_AUTO_MODE(link_info->auto_mode)) { + elink_info->autoneg =3D BNGE_AUTONEG_SPEED; + if (link_info->auto_pause_setting & + PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE) + elink_info->autoneg |=3D BNGE_AUTONEG_FLOW_CTRL; + bnge_set_auto_speed(bn); + } else { + elink_info->autoneg =3D 0; + elink_info->advertising =3D 0; + elink_info->advertising_pam4 =3D 0; + bnge_set_force_speed(bn); + elink_info->req_duplex =3D link_info->duplex_setting; + } + if (elink_info->autoneg & BNGE_AUTONEG_FLOW_CTRL) + elink_info->req_flow_ctrl =3D + link_info->auto_pause_setting & BNGE_LINK_PAUSE_BOTH; + else + elink_info->req_flow_ctrl =3D link_info->force_pause_setting; +} + +int bnge_probe_phy(struct bnge_net *bn, bool fw_dflt) +{ + struct bnge_dev *bd =3D bn->bd; + int rc; + + bd->phy_flags =3D 0; + rc =3D bnge_hwrm_phy_qcaps(bd); + if (rc) { + netdev_err(bn->netdev, + "Probe PHY can't get PHY qcaps (rc: %d)\n", rc); + return rc; + } + if (bd->phy_flags & BNGE_PHY_FL_NO_FCS) + bn->netdev->priv_flags |=3D IFF_SUPP_NOFCS; + else + bn->netdev->priv_flags &=3D ~IFF_SUPP_NOFCS; + if (!fw_dflt) + return 0; + + rc =3D bnge_update_link(bn, false); + if (rc) { + netdev_err(bn->netdev, "Probe PHY can't update link (rc: %d)\n", + rc); + return rc; + } + bnge_init_ethtool_link_settings(bn); + + return 0; +} + +void bnge_hwrm_set_link_common(struct bnge_net *bn, + struct hwrm_port_phy_cfg_input *req) +{ + struct bnge_ethtool_link_info *elink_info =3D &bn->eth_link_info; + struct bnge_dev *bd =3D bn->bd; + + if (elink_info->autoneg & BNGE_AUTONEG_SPEED) { + req->auto_mode |=3D PORT_PHY_CFG_REQ_AUTO_MODE_SPEED_MASK; + if (bd->phy_flags & BNGE_PHY_FL_SPEEDS2) { + req->enables |=3D cpu_to_le32(BNGE_PHY_AUTO_SPEEDS2_MASK); + req->auto_link_speeds2_mask =3D + cpu_to_le16(elink_info->advertising); + } else if (elink_info->advertising) { + req->enables |=3D cpu_to_le32(BNGE_PHY_AUTO_SPEED_MASK); + req->auto_link_speed_mask =3D + cpu_to_le16(elink_info->advertising); + } + if (elink_info->advertising_pam4) { + req->enables |=3D + cpu_to_le32(BNGE_PHY_AUTO_PAM4_SPEED_MASK); + req->auto_link_pam4_speed_mask =3D + cpu_to_le16(elink_info->advertising_pam4); + } + req->enables |=3D cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_MODE); + req->flags |=3D cpu_to_le32(BNGE_PHY_FLAGS_RESTART_AUTO); + } else { + req->flags |=3D cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_FORCE); + if (bd->phy_flags & BNGE_PHY_FL_SPEEDS2) { + req->force_link_speeds2 =3D + cpu_to_le16(elink_info->req_link_speed); + req->enables |=3D + cpu_to_le32(BNGE_PHY_FLAGS_ENA_FORCE_SPEEDS2); + netif_info(bn, link, bn->netdev, + "Forcing FW speed2: %d\n", + (u32)elink_info->req_link_speed); + } else if (elink_info->req_signal_mode =3D=3D BNGE_SIG_MODE_PAM4) { + req->force_pam4_link_speed =3D + cpu_to_le16(elink_info->req_link_speed); + req->enables |=3D + cpu_to_le32(BNGE_PHY_FLAGS_ENA_FORCE_PM4_SPEED); + } else { + req->force_link_speed =3D + cpu_to_le16(elink_info->req_link_speed); + } + } + + /* tell FW that the setting takes effect immediately */ + req->flags |=3D cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_RESET_PHY); +} + +static bool bnge_auto_speed_updated(struct bnge_net *bn) +{ + struct bnge_ethtool_link_info *elink_info =3D &bn->eth_link_info; + struct bnge_link_info *link_info; + struct bnge_dev *bd =3D bn->bd; + + link_info =3D &bd->link_info; + + if (bd->phy_flags & BNGE_PHY_FL_SPEEDS2) + return elink_info->advertising !=3D link_info->auto_link_speeds2; + + return elink_info->advertising !=3D link_info->auto_link_speeds || + elink_info->advertising_pam4 !=3D link_info->auto_pam4_link_speeds; +} + +void bnge_hwrm_set_pause_common(struct bnge_net *bn, + struct hwrm_port_phy_cfg_input *req) +{ + if (bn->eth_link_info.autoneg & BNGE_AUTONEG_FLOW_CTRL) { + req->auto_pause =3D PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE; + if (bn->eth_link_info.req_flow_ctrl & BNGE_LINK_PAUSE_RX) + req->auto_pause |=3D PORT_PHY_CFG_REQ_AUTO_PAUSE_RX; + if (bn->eth_link_info.req_flow_ctrl & BNGE_LINK_PAUSE_TX) + req->auto_pause |=3D PORT_PHY_CFG_REQ_AUTO_PAUSE_TX; + req->enables |=3D + cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE); + } else { + if (bn->eth_link_info.req_flow_ctrl & BNGE_LINK_PAUSE_RX) + req->force_pause |=3D PORT_PHY_CFG_REQ_FORCE_PAUSE_RX; + if (bn->eth_link_info.req_flow_ctrl & BNGE_LINK_PAUSE_TX) + req->force_pause |=3D PORT_PHY_CFG_REQ_FORCE_PAUSE_TX; + req->enables |=3D + cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_FORCE_PAUSE); + req->auto_pause =3D req->force_pause; + req->enables |=3D + cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE); + } +} + +static bool bnge_force_speed_updated(struct bnge_net *bn) +{ + struct bnge_ethtool_link_info *elink_info =3D &bn->eth_link_info; + struct bnge_link_info *link_info; + struct bnge_dev *bd =3D bn->bd; + + link_info =3D &bd->link_info; + + if (bd->phy_flags & BNGE_PHY_FL_SPEEDS2) + return elink_info->req_link_speed !=3D link_info->force_link_speed2; + + if (elink_info->req_signal_mode =3D=3D BNGE_SIG_MODE_NRZ) + return elink_info->req_link_speed !=3D link_info->force_link_speed; + + return elink_info->req_signal_mode =3D=3D BNGE_SIG_MODE_PAM4 && + elink_info->req_link_speed !=3D link_info->force_pam4_link_speed; +} + +int bnge_update_phy_setting(struct bnge_net *bn) +{ + struct bnge_ethtool_link_info *elink_info; + struct bnge_link_info *link_info; + struct bnge_dev *bd =3D bn->bd; + bool update_pause =3D false; + bool update_link =3D false; + int rc; + + link_info =3D &bd->link_info; + elink_info =3D &bn->eth_link_info; + rc =3D bnge_update_link(bn, true); + if (rc) { + netdev_err(bn->netdev, "failed to update link (rc: %d)\n", + rc); + return rc; + } + + if ((elink_info->autoneg & BNGE_AUTONEG_FLOW_CTRL) && + (link_info->auto_pause_setting & BNGE_LINK_PAUSE_BOTH) !=3D + elink_info->req_flow_ctrl) + update_pause =3D true; + if (!(elink_info->autoneg & BNGE_AUTONEG_FLOW_CTRL) && + link_info->force_pause_setting !=3D elink_info->req_flow_ctrl) + update_pause =3D true; + if (!(elink_info->autoneg & BNGE_AUTONEG_SPEED)) { + if (BNGE_AUTO_MODE(link_info->auto_mode)) + update_link =3D true; + if (bnge_force_speed_updated(bn)) + update_link =3D true; + if (elink_info->req_duplex !=3D link_info->duplex_setting) + update_link =3D true; + } else { + if (link_info->auto_mode =3D=3D BNGE_LINK_AUTO_NONE) + update_link =3D true; + if (bnge_auto_speed_updated(bn)) + update_link =3D true; + } + + /* The last close may have shut down the link, so need to call + * PHY_CFG to bring it back up. + */ + if (!BNGE_LINK_IS_UP(bd)) + update_link =3D true; + + if (update_link) + rc =3D bnge_hwrm_set_link_setting(bn, update_pause); + else if (update_pause) + rc =3D bnge_hwrm_set_pause(bn); + + if (rc) { + netdev_err(bn->netdev, + "failed to update PHY setting (rc: %d)\n", rc); + return rc; + } + + return 0; +} + +void bnge_get_port_module_status(struct bnge_net *bn) +{ + struct hwrm_port_phy_qcfg_output *resp; + struct bnge_link_info *link_info; + struct bnge_dev *bd =3D bn->bd; + u8 module_status; + + link_info =3D &bd->link_info; + resp =3D &link_info->phy_qcfg_resp; + + if (bnge_update_link(bn, true)) + return; + + module_status =3D link_info->module_status; + switch (module_status) { + case PORT_PHY_QCFG_RESP_MODULE_STATUS_DISABLETX: + case PORT_PHY_QCFG_RESP_MODULE_STATUS_PWRDOWN: + case PORT_PHY_QCFG_RESP_MODULE_STATUS_WARNINGMSG: + netdev_warn(bn->netdev, + "Unqualified SFP+ module detected on port %d\n", + bd->pf.port_id); + netdev_warn(bn->netdev, "Module part number %s\n", + resp->phy_vendor_partnumber); + if (module_status =3D=3D PORT_PHY_QCFG_RESP_MODULE_STATUS_DISABLETX) + netdev_warn(bn->netdev, "TX is disabled\n"); + if (module_status =3D=3D PORT_PHY_QCFG_RESP_MODULE_STATUS_PWRDOWN) + netdev_warn(bn->netdev, "SFP+ module is shut down\n"); + break; + } +} + +static bool bnge_support_dropped(u16 advertising, u16 supported) +{ + return (advertising & ~supported) !=3D 0; +} + +bool bnge_support_speed_dropped(struct bnge_net *bn) +{ + struct bnge_ethtool_link_info *elink_info =3D &bn->eth_link_info; + struct bnge_link_info *link_info; + struct bnge_dev *bd =3D bn->bd; + + link_info =3D &bd->link_info; + + /* Check if any advertised speeds are no longer supported. The caller + * holds the netdev instance lock, so we can modify link_info settings. + */ + if (bd->phy_flags & BNGE_PHY_FL_SPEEDS2) { + if (bnge_support_dropped(elink_info->advertising, + link_info->support_auto_speeds2)) { + elink_info->advertising =3D + link_info->support_auto_speeds2; + return true; + } + return false; + } + if (bnge_support_dropped(elink_info->advertising, + link_info->support_auto_speeds)) { + elink_info->advertising =3D link_info->support_auto_speeds; + return true; + } + if (bnge_support_dropped(elink_info->advertising_pam4, + link_info->support_pam4_auto_speeds)) { + elink_info->advertising_pam4 =3D + link_info->support_pam4_auto_speeds; + return true; + } + return false; +} + +static char *bnge_report_fec(struct bnge_link_info *link_info) +{ + u8 active_fec =3D link_info->active_fec_sig_mode & + PORT_PHY_QCFG_RESP_ACTIVE_FEC_MASK; + + switch (active_fec) { + default: + case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_NONE_ACTIVE: + return "None"; + case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_CLAUSE74_ACTIVE: + return "Clause 74 BaseR"; + case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_CLAUSE91_ACTIVE: + return "Clause 91 RS(528,514)"; + case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS544_1XN_ACTIVE: + return "Clause 91 RS544_1XN"; + case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS544_IEEE_ACTIVE: + return "Clause 91 RS(544,514)"; + case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS272_1XN_ACTIVE: + return "Clause 91 RS272_1XN"; + case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS272_IEEE_ACTIVE: + return "Clause 91 RS(272,257)"; + } +} + +void bnge_report_link(struct bnge_dev *bd) +{ + if (BNGE_LINK_IS_UP(bd)) { + const char *signal =3D ""; + const char *flow_ctrl; + const char *duplex; + u32 speed; + u16 fec; + + netif_carrier_on(bd->netdev); + speed =3D bnge_fw_to_ethtool_speed(bd->link_info.link_speed); + if (speed =3D=3D SPEED_UNKNOWN) { + netdev_info(bd->netdev, + "NIC Link is Up, speed unknown\n"); + return; + } + if (bd->link_info.duplex =3D=3D BNGE_LINK_DUPLEX_FULL) + duplex =3D "full"; + else + duplex =3D "half"; + if (bd->link_info.pause =3D=3D BNGE_LINK_PAUSE_BOTH) + flow_ctrl =3D "ON - receive & transmit"; + else if (bd->link_info.pause =3D=3D BNGE_LINK_PAUSE_TX) + flow_ctrl =3D "ON - transmit"; + else if (bd->link_info.pause =3D=3D BNGE_LINK_PAUSE_RX) + flow_ctrl =3D "ON - receive"; + else + flow_ctrl =3D "none"; + if (bd->link_info.phy_qcfg_resp.option_flags & + PORT_PHY_QCFG_RESP_OPTION_FLAGS_SIGNAL_MODE_KNOWN) { + u8 sig_mode =3D bd->link_info.active_fec_sig_mode & + PORT_PHY_QCFG_RESP_SIGNAL_MODE_MASK; + switch (sig_mode) { + case PORT_PHY_QCFG_RESP_SIGNAL_MODE_NRZ: + signal =3D "(NRZ) "; + break; + case PORT_PHY_QCFG_RESP_SIGNAL_MODE_PAM4: + signal =3D "(PAM4 56Gbps) "; + break; + case PORT_PHY_QCFG_RESP_SIGNAL_MODE_PAM4_112: + signal =3D "(PAM4 112Gbps) "; + break; + default: + break; + } + } + netdev_info(bd->netdev, "NIC Link is Up, %u Mbps %s%s duplex, Flow contr= ol: %s\n", + speed, signal, duplex, flow_ctrl); + fec =3D bd->link_info.fec_cfg; + if (!(fec & PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED)) + netdev_info(bd->netdev, "FEC autoneg %s encoding: %s\n", + (fec & BNGE_FEC_AUTONEG) ? "on" : "off", + bnge_report_fec(&bd->link_info)); + } else { + netif_carrier_off(bd->netdev); + netdev_info(bd->netdev, "NIC Link is Down\n"); + } +} diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_link.h b/drivers/net/e= thernet/broadcom/bnge/bnge_link.h new file mode 100644 index 000000000000..f22dec2899e3 --- /dev/null +++ b/drivers/net/ethernet/broadcom/bnge/bnge_link.h @@ -0,0 +1,193 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2026 Broadcom */ + +#ifndef _BNGE_LINK_H_ +#define _BNGE_LINK_H_ + +#define BNGE_PHY_CFG_ABLE(bd) \ + ((bd)->link_info.phy_enabled) + +#define BNGE_PHY_AUTO_SPEEDS2_MASK \ + PORT_PHY_CFG_REQ_ENABLES_AUTO_LINK_SPEEDS2_MASK +#define BNGE_PHY_AUTO_SPEED_MASK \ + PORT_PHY_CFG_REQ_ENABLES_AUTO_LINK_SPEED_MASK +#define BNGE_PHY_AUTO_PAM4_SPEED_MASK \ + PORT_PHY_CFG_REQ_ENABLES_AUTO_PAM4_LINK_SPEED_MASK +#define BNGE_PHY_FLAGS_RESTART_AUTO \ + PORT_PHY_CFG_REQ_FLAGS_RESTART_AUTONEG +#define BNGE_PHY_FLAGS_ENA_FORCE_SPEEDS2 \ + PORT_PHY_CFG_REQ_ENABLES_FORCE_LINK_SPEEDS2 +#define BNGE_PHY_FLAGS_ENA_FORCE_PM4_SPEED \ + PORT_PHY_CFG_REQ_ENABLES_FORCE_PAM4_LINK_SPEED + +#define BNGE_LINK_LINK PORT_PHY_QCFG_RESP_LINK_LINK + +enum bnge_link_state { + BNGE_LINK_STATE_UNKNOWN, + BNGE_LINK_STATE_DOWN, + BNGE_LINK_STATE_UP, +}; + +#define BNGE_LINK_IS_UP(bd) \ + ((bd)->link_info.link_state =3D=3D BNGE_LINK_STATE_UP) + +#define BNGE_LINK_DUPLEX_FULL PORT_PHY_QCFG_RESP_DUPLEX_STATE_FULL + +#define BNGE_LINK_PAUSE_TX PORT_PHY_QCFG_RESP_PAUSE_TX +#define BNGE_LINK_PAUSE_RX PORT_PHY_QCFG_RESP_PAUSE_RX +#define BNGE_LINK_PAUSE_BOTH (PORT_PHY_QCFG_RESP_PAUSE_RX | \ + PORT_PHY_QCFG_RESP_PAUSE_TX) + +#define BNGE_LINK_AUTO_NONE PORT_PHY_QCFG_RESP_AUTO_MODE_NONE +#define BNGE_LINK_AUTO_MSK PORT_PHY_QCFG_RESP_AUTO_MODE_SPEED_MASK +#define BNGE_AUTO_MODE(mode) ((mode) > BNGE_LINK_AUTO_NONE && \ + (mode) <=3D BNGE_LINK_AUTO_MSK) + +#define BNGE_LINK_SPEED_50GB PORT_PHY_QCFG_RESP_LINK_SPEED_50GB +#define BNGE_LINK_SPEED_100GB PORT_PHY_QCFG_RESP_LINK_SPEED_100GB +#define BNGE_LINK_SPEED_200GB PORT_PHY_QCFG_RESP_LINK_SPEED_200GB +#define BNGE_LINK_SPEED_400GB PORT_PHY_QCFG_RESP_LINK_SPEED_400GB +#define BNGE_LINK_SPEED_800GB PORT_PHY_QCFG_RESP_LINK_SPEED_800GB + +#define BNGE_LINK_SPEED_MSK_50GB PORT_PHY_QCFG_RESP_SUPPORT_SPEEDS_50GB +#define BNGE_LINK_SPEED_MSK_100GB PORT_PHY_QCFG_RESP_SUPPORT_SPEEDS_100GB + +#define BNGE_LINK_PAM4_SPEED_MSK_50GB PORT_PHY_QCFG_RESP_SUPPORT_PAM4_SPEE= DS_50G +#define BNGE_LINK_PAM4_SPEED_MSK_100GB \ + PORT_PHY_QCFG_RESP_SUPPORT_PAM4_SPEEDS_100G +#define BNGE_LINK_PAM4_SPEED_MSK_200GB \ + PORT_PHY_QCFG_RESP_SUPPORT_PAM4_SPEEDS_200G + +#define BNGE_LINK_SPEEDS2_MSK_50GB PORT_PHY_QCFG_RESP_SUPPORT_SPEEDS2_50GB +#define BNGE_LINK_SPEEDS2_MSK_100GB PORT_PHY_QCFG_RESP_SUPPORT_SPEEDS2_100= GB +#define BNGE_LINK_SPEEDS2_MSK_50GB_PAM4 \ + PORT_PHY_QCFG_RESP_SUPPORT_SPEEDS2_50GB_PAM4_56 +#define BNGE_LINK_SPEEDS2_MSK_100GB_PAM4 \ + PORT_PHY_QCFG_RESP_SUPPORT_SPEEDS2_100GB_PAM4_56 +#define BNGE_LINK_SPEEDS2_MSK_200GB_PAM4 \ + PORT_PHY_QCFG_RESP_SUPPORT_SPEEDS2_200GB_PAM4_56 +#define BNGE_LINK_SPEEDS2_MSK_400GB_PAM4 \ + PORT_PHY_QCFG_RESP_SUPPORT_SPEEDS2_400GB_PAM4_56 +#define BNGE_LINK_SPEEDS2_MSK_100GB_PAM4_112 \ + PORT_PHY_QCFG_RESP_SUPPORT_SPEEDS2_100GB_PAM4_112 +#define BNGE_LINK_SPEEDS2_MSK_200GB_PAM4_112 \ + PORT_PHY_QCFG_RESP_SUPPORT_SPEEDS2_200GB_PAM4_112 +#define BNGE_LINK_SPEEDS2_MSK_400GB_PAM4_112 \ + PORT_PHY_QCFG_RESP_SUPPORT_SPEEDS2_400GB_PAM4_112 +#define BNGE_LINK_SPEEDS2_MSK_800GB_PAM4_112 \ + PORT_PHY_QCFG_RESP_SUPPORT_SPEEDS2_800GB_PAM4_112 + +#define BNGE_LINK_SPEED_50GB_PAM4 \ + PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_50GB_PAM4_56 +#define BNGE_LINK_SPEED_100GB_PAM4 \ + PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_100GB_PAM4_56 +#define BNGE_LINK_SPEED_200GB_PAM4 \ + PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_200GB_PAM4_56 +#define BNGE_LINK_SPEED_400GB_PAM4 \ + PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_400GB_PAM4_56 +#define BNGE_LINK_SPEED_100GB_PAM4_112 \ + PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_100GB_PAM4_112 +#define BNGE_LINK_SPEED_200GB_PAM4_112 \ + PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_200GB_PAM4_112 +#define BNGE_LINK_SPEED_400GB_PAM4_112 \ + PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_400GB_PAM4_112 +#define BNGE_LINK_SPEED_800GB_PAM4_112 \ + PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_800GB_PAM4_112 + +#define BNGE_FEC_NONE PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED +#define BNGE_FEC_AUTONEG PORT_PHY_QCFG_RESP_FEC_CFG_FEC_AUTONEG_ENABLED +#define BNGE_FEC_ENC_BASE_R_CAP \ + PORT_PHY_QCFG_RESP_FEC_CFG_FEC_CLAUSE74_SUPPORTED +#define BNGE_FEC_ENC_BASE_R PORT_PHY_QCFG_RESP_FEC_CFG_FEC_CLAUSE74_ENABLED +#define BNGE_FEC_ENC_RS_CAP \ + PORT_PHY_QCFG_RESP_FEC_CFG_FEC_CLAUSE91_SUPPORTED +#define BNGE_FEC_ENC_LLRS_CAP \ + (PORT_PHY_QCFG_RESP_FEC_CFG_FEC_RS272_1XN_SUPPORTED | \ + PORT_PHY_QCFG_RESP_FEC_CFG_FEC_RS272_IEEE_SUPPORTED) +#define BNGE_FEC_ENC_RS \ + (PORT_PHY_QCFG_RESP_FEC_CFG_FEC_CLAUSE91_ENABLED | \ + PORT_PHY_QCFG_RESP_FEC_CFG_FEC_RS544_1XN_ENABLED | \ + PORT_PHY_QCFG_RESP_FEC_CFG_FEC_RS544_IEEE_ENABLED) +#define BNGE_FEC_ENC_LLRS \ + (PORT_PHY_QCFG_RESP_FEC_CFG_FEC_RS272_1XN_ENABLED | \ + PORT_PHY_QCFG_RESP_FEC_CFG_FEC_RS272_IEEE_ENABLED) + +struct bnge_link_info { + u8 phy_type; + u8 media_type; + u8 phy_addr; + u8 phy_link_status; + bool phy_enabled; + + u8 link_state; + u8 active_lanes; + u8 duplex; + u8 pause; + u8 lp_pause; + u8 auto_pause_setting; + u8 force_pause_setting; + u8 duplex_setting; + u8 auto_mode; + u16 link_speed; + u16 support_speeds; + u16 support_pam4_speeds; + u16 support_speeds2; + + u16 auto_link_speeds; /* fw adv setting */ + u16 auto_pam4_link_speeds; + u16 auto_link_speeds2; + + u16 support_auto_speeds; + u16 support_pam4_auto_speeds; + u16 support_auto_speeds2; + + u16 lp_auto_link_speeds; + u16 lp_auto_pam4_link_speeds; + u16 force_link_speed; + u16 force_pam4_link_speed; + u16 force_link_speed2; + + u8 module_status; + u8 active_fec_sig_mode; + u16 fec_cfg; + + /* A copy of phy_qcfg output used to report link + * info to VF + */ + struct hwrm_port_phy_qcfg_output phy_qcfg_resp; + + bool phy_retry; + unsigned long phy_retry_expires; +}; + +#define BNGE_AUTONEG_SPEED 1 +#define BNGE_AUTONEG_FLOW_CTRL 2 + +#define BNGE_SIG_MODE_NRZ PORT_PHY_QCFG_RESP_SIGNAL_MODE_NRZ +#define BNGE_SIG_MODE_PAM4 PORT_PHY_QCFG_RESP_SIGNAL_MODE_PAM4 +#define BNGE_SIG_MODE_PAM4_112 PORT_PHY_QCFG_RESP_SIGNAL_MODE_PAM4_112 +#define BNGE_SIG_MODE_MAX (PORT_PHY_QCFG_RESP_SIGNAL_MODE_LAST + 1) + +struct bnge_ethtool_link_info { + /* copy of requested setting from ethtool cmd */ + u8 autoneg; + u8 req_signal_mode; + u8 req_duplex; + u8 req_flow_ctrl; + u16 req_link_speed; + u16 advertising; /* user adv setting */ + u16 advertising_pam4; + bool force_link_chng; +}; + +void bnge_hwrm_set_link_common(struct bnge_net *bn, + struct hwrm_port_phy_cfg_input *req); +void bnge_hwrm_set_pause_common(struct bnge_net *bn, + struct hwrm_port_phy_cfg_input *req); +int bnge_update_phy_setting(struct bnge_net *bn); +void bnge_get_port_module_status(struct bnge_net *bn); +void bnge_report_link(struct bnge_dev *bd); +bool bnge_support_speed_dropped(struct bnge_net *bn); +void bnge_init_ethtool_link_settings(struct bnge_net *bn); +int bnge_probe_phy(struct bnge_net *bn, bool fw_dflt); +#endif /* _BNGE_LINK_H_ */ diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c b/drivers/net= /ethernet/broadcom/bnge/bnge_netdev.c index edbb42efb70b..29c703f3c9a1 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c @@ -101,6 +101,17 @@ static int bnge_alloc_ring_stats(struct bnge_net *bn) return rc; } =20 +void __bnge_queue_sp_work(struct bnge_net *bn) +{ + queue_work(bn->bnge_pf_wq, &bn->sp_task); +} + +static void bnge_queue_sp_work(struct bnge_net *bn, unsigned int event) +{ + set_bit(event, &bn->sp_event); + __bnge_queue_sp_work(bn); +} + static void bnge_timer(struct timer_list *t) { struct bnge_net *bn =3D timer_container_of(bn, t, timer); @@ -110,7 +121,14 @@ static void bnge_timer(struct timer_list *t) !test_bit(BNGE_STATE_OPEN, &bd->state)) return; =20 - /* Periodic work added by later patches */ + if (bd->link_info.phy_retry) { + if (time_after(jiffies, bd->link_info.phy_retry_expires)) { + bd->link_info.phy_retry =3D false; + netdev_warn(bn->netdev, "failed to update PHY settings after maximum re= tries.\n"); + } else { + bnge_queue_sp_work(bn, BNGE_UPDATE_PHY_SP_EVENT); + } + } =20 mod_timer(&bn->timer, jiffies + bn->current_interval); } @@ -126,7 +144,17 @@ static void bnge_sp_task(struct work_struct *work) return; } =20 - /* Event handling work added by later patches */ + if (test_and_clear_bit(BNGE_UPDATE_PHY_SP_EVENT, &bn->sp_event)) { + int rc; + + rc =3D bnge_update_phy_setting(bn); + if (rc) { + netdev_warn(bn->netdev, "update PHY settings retry failed\n"); + } else { + bd->link_info.phy_retry =3D false; + netdev_info(bn->netdev, "update PHY settings retry succeeded\n"); + } + } =20 netdev_unlock(bn->netdev); } @@ -2496,6 +2524,8 @@ static void bnge_tx_enable(struct bnge_net *bn) /* Make sure napi polls see @dev_state change */ synchronize_net(); netif_tx_wake_all_queues(bn->netdev); + if (BNGE_LINK_IS_UP(bn->bd)) + netif_carrier_on(bn->netdev); } =20 static int bnge_open_core(struct bnge_net *bn) @@ -2532,6 +2562,16 @@ static int bnge_open_core(struct bnge_net *bn) =20 bnge_enable_napi(bn); =20 + rc =3D bnge_update_phy_setting(bn); + if (rc) { + netdev_warn(bn->netdev, "failed to update PHY settings (rc: %d)\n", + rc); + bd->link_info.phy_retry =3D true; + bd->link_info.phy_retry_expires =3D jiffies + 5 * HZ; + } else { + bd->link_info.phy_retry =3D false; + } + set_bit(BNGE_STATE_OPEN, &bd->state); =20 bnge_enable_int(bn); @@ -2540,6 +2580,9 @@ static int bnge_open_core(struct bnge_net *bn) =20 mod_timer(&bn->timer, jiffies + bn->current_interval); =20 + /* Poll link status and check for SFP+ module status */ + bnge_get_port_module_status(bn); + return 0; =20 err_free_irq: @@ -2591,6 +2634,7 @@ static int bnge_close(struct net_device *dev) struct bnge_net *bn =3D netdev_priv(dev); =20 bnge_close_core(bn); + bnge_hwrm_shutdown_link(bn->bd); =20 return 0; } @@ -2848,6 +2892,10 @@ int bnge_netdev_alloc(struct bnge_dev *bd, int max_i= rqs) bnge_init_l2_fltr_tbl(bn); bnge_init_mac_addr(bd); =20 + rc =3D bnge_probe_phy(bn, true); + if (rc) + goto err_free_workq; + netdev->request_ops_lock =3D true; rc =3D register_netdev(netdev); if (rc) { diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h b/drivers/net= /ethernet/broadcom/bnge/bnge_netdev.h index d2ccee725454..5636eb371e24 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h +++ b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h @@ -9,6 +9,7 @@ #include #include "bnge_db.h" #include "bnge_hw_def.h" +#include "bnge_link.h" =20 struct tx_bd { __le32 tx_bd_len_flags_type; @@ -230,6 +231,13 @@ enum bnge_net_state { =20 #define BNGE_TIMER_INTERVAL HZ =20 +enum bnge_sp_event { + BNGE_LINK_CHNG_SP_EVENT, + BNGE_LINK_SPEED_CHNG_SP_EVENT, + BNGE_LINK_CFG_CHANGE_SP_EVENT, + BNGE_UPDATE_PHY_SP_EVENT, +}; + struct bnge_net { struct bnge_dev *bd; struct net_device *netdev; @@ -298,6 +306,9 @@ struct bnge_net { struct timer_list timer; struct workqueue_struct *bnge_pf_wq; struct work_struct sp_task; + unsigned long sp_event; + + struct bnge_ethtool_link_info eth_link_info; }; =20 #define BNGE_DEFAULT_RX_RING_SIZE 511 @@ -576,4 +587,5 @@ u8 *__bnge_alloc_rx_frag(struct bnge_net *bn, dma_addr_= t *mapping, struct bnge_rx_ring_info *rxr, gfp_t gfp); int bnge_alloc_rx_netmem(struct bnge_net *bn, struct bnge_rx_ring_info *rx= r, u16 prod, gfp_t gfp); +void __bnge_queue_sp_work(struct bnge_net *bn); #endif /* _BNGE_NETDEV_H_ */ --=20 2.47.1 From nobody Mon Apr 6 16:23:50 2026 Received: from mail-pj1-f100.google.com (mail-pj1-f100.google.com [209.85.216.100]) (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 8D728313551 for ; Thu, 19 Mar 2026 05:52:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.100 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899558; cv=none; b=Gfsdeh52dBTRBpQ93s0rFkrMb+NNLXDjUjji5O3R6qlMXJ/LqYDfRtZryQHhKQ//csKeTDJCNtt54hUYU8l3edgBbdKmyvLXD6D0YzGNNTRnjCkkFhVRHBGaxpGY+8fdrVCWopmiVLFQVtCkS9qIQvBmc97p3yPTeQVTRI4u7Nw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899558; c=relaxed/simple; bh=w6ddKLbaCT0HUNkbrqwZQYLKwRUZw3vYz1XhyqO8fzU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=k11guutjMLLj0cAWv8fzKDlfEYRpgQDkvv/KLNtVYwnjcl1FfnA3Ok6QG1I5d6Ai9QWzhd7lBAfcQkN7NX2H3igFjv6RZVPKyJkmMVQc4A+ssHJj+1XHTNCt3HQ8Wfsy4mgXAqFZUaFKneuRhePsLo35ZqmiRLysT6UQBBXxJgU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com; spf=fail smtp.mailfrom=broadcom.com; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b=P8T6ZB87; arc=none smtp.client-ip=209.85.216.100 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=broadcom.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="P8T6ZB87" Received: by mail-pj1-f100.google.com with SMTP id 98e67ed59e1d1-35691a231a7so392048a91.3 for ; Wed, 18 Mar 2026 22:52:36 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1773899556; x=1774504356; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=ahnAQuYfQJG1+ChVQwrVTgRpsQTBspXSHwE1FKJm2/Q=; b=kIva9mdiYMQC02rB09QM1i1pjE5znAAS83i1wHn8h49O7sKl3sV5WSdUaXrBTxqyVB dULKvurWETqhsfCqTy7fZexxUWLt5mtU64DIJOLJstI5YBTiBtdYD0cQgNvs5wCB6P+7 GtN3FSI99b/PAeXtwqq95qMheziScdW2jdjAJ5+NfJZjXxIk9Ok/dsDXtVfXmePBCo0X GETDhKlDuCcIEhonEwDp7umlpVH8IWDc9atKRpGD/TTqnVSgqEJqTYnJ6E3hlCcYNkXt 8/b3nX3fUebLIduO9pC8tDCz4cgNyQ3wdw5/lTxcp+2Tliu3wgkQUWcxD4oBSCzD132d deZw== X-Forwarded-Encrypted: i=1; AJvYcCXW8UaANBAXFcKFup3LVq+vAEm6UiDds2W2y1/yfrph7EocdeR7jTuI7//sHzOOVULfebG2Stzl3Z/TCqw=@vger.kernel.org X-Gm-Message-State: AOJu0YxFZSBmt/hzga1NzH+bP2jx93pc2VJmN0uy3u/2Vj1olpzF+ReV 6eX4fqiwbt3Y7Qr8WiWdOl2EKL77YPBlppXB61I4qcNIFsoIi0Q8wrvRHtMCzl2BhvlSvD6Qtvt o4vualMqNYXHSyI/DF+twc6BzVfukoc6YAvRvU+Is0i02jfJ4kfR6qCauF8qllHZ0RpYj7arYEo hlaiAOHLrYFGhWb8lGNzO9a8jrodukotG5II55g1jzTFAjomNtdkMy0vPjNxXE8dtTcWGg/AhAV 9/phxIURCSxluOBZw== X-Gm-Gg: ATEYQzyscFetnxHXQJUZAwvdK1MB0ZjVLYCFEib6mTBySCJsQw/4dzsGOlBVoRhl2KL bbdpDeE8SDThD51Ej5mhTzOYGXYv32H1AvRSpaBU8y1JlQcxq3ffStnkTan8vw+AnY8lRQC4YTa 5iUnA7b7zPCFb2KQpPhZp1/lyH4qXrcYcii8+ibF/mypii4rKcN+hLIsYMfPHSIUCsF6pykpExW RtmZzHlKYIml7eDDwy5F9uXzJYOFiTAEuMbXoZMDMGa2NWXCH9ZUAf6GwIz17tRTE2idJn6oX9j ElxCDFqEreeoioz9rSCQR62rm6qPrSVgQp1+7LQgD1H6f8pPOMXJUCU1Y+vwljjYSe44CVOVPYu qtjsefvZCe2JMIAbh2BF51fS0WcerLvnlPPsMmjLjBZyYF2O5duI6AYw/xkYioUCfTde5KAArcs o49gnTqdeZtkdcAXBV+5bEYVkXQhR3eergShu6keLmXKjwCmT9HVuwxjk= X-Received: by 2002:a17:903:1a67:b0:2b0:4a1c:b847 with SMTP id d9443c01a7336-2b06e41c05dmr57919145ad.52.1773899555826; Wed, 18 Mar 2026 22:52:35 -0700 (PDT) Received: from smtp-us-east1-p01-i01-si01.dlp.protect.broadcom.com (address-144-49-247-22.dlp.protect.broadcom.com. [144.49.247.22]) by smtp-relay.gmail.com with ESMTPS id d9443c01a7336-2b06e45e2ffsm5386135ad.1.2026.03.18.22.52.35 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 18 Mar 2026 22:52:35 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-yx1-f71.google.com with SMTP id 956f58d0204a3-64c46202950so1965443d50.3 for ; Wed, 18 Mar 2026 22:52:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1773899554; x=1774504354; 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; bh=ahnAQuYfQJG1+ChVQwrVTgRpsQTBspXSHwE1FKJm2/Q=; b=P8T6ZB87G4aX9NFxTH6vrioFGR9MnC0NAGuABDMSSCblNr7iRHF7oBXvUdWfFky2RQ SeQDUlxNolJ1OX1g/NHBKf/fDAN3YjYFpRU8oPEciZBTMSWLKxqvHIVNGVZsJlnhx4/I nCw7kR7sLEhtMP3jFKBYz/S2sS9QKgB7m08WA= X-Forwarded-Encrypted: i=1; AJvYcCVeQiWtxrJas1BoFYee/8Si67Pe4CnA33740LDwLZ5UgnzWkmvstuVhJdz/hI4adH40A81GvBqresqTJfc=@vger.kernel.org X-Received: by 2002:a53:b4c3:0:b0:649:b31e:8f54 with SMTP id 956f58d0204a3-64e91339168mr5120055d50.24.1773899554272; Wed, 18 Mar 2026 22:52:34 -0700 (PDT) X-Received: by 2002:a53:b4c3:0:b0:649:b31e:8f54 with SMTP id 956f58d0204a3-64e91339168mr5120043d50.24.1773899553691; Wed, 18 Mar 2026 22:52:33 -0700 (PDT) Received: from localhost.localdomain ([192.19.203.250]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-64e91a1cd32sm2918980d50.2.2026.03.18.22.52.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Mar 2026 22:52:33 -0700 (PDT) From: Vikas Gupta To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, michael.chan@broadcom.com, pavan.chebbi@broadcom.com, vsrama-krishna.nemani@broadcom.com, rajashekar.hudumula@broadcom.com, ajit.khaparde@broadcom.com, Bhargava Marreddy , Vikas Gupta Subject: [PATCH net-next v8 03/10] bng_en: add ethtool link settings, get_link, and nway_reset Date: Thu, 19 Mar 2026 11:21:17 +0530 Message-ID: <20260319055124.1350670-4-vikas.gupta@broadcom.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20260319055124.1350670-1-vikas.gupta@broadcom.com> References: <20260319055124.1350670-1-vikas.gupta@broadcom.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e Content-Type: text/plain; charset="utf-8" From: Bhargava Marreddy Add get/set_link_ksettings, get_link, and nway_reset support. Report supported, advertised, and link-partner speeds across NRZ, PAM4, and PAM4-112 signaling modes. Enable lane count reporting. Signed-off-by: Bhargava Marreddy Reviewed-by: Vikas Gupta --- drivers/net/ethernet/broadcom/bnge/bnge.h | 2 + .../net/ethernet/broadcom/bnge/bnge_core.c | 1 + .../net/ethernet/broadcom/bnge/bnge_ethtool.c | 24 + .../net/ethernet/broadcom/bnge/bnge_link.c | 793 ++++++++++++++++++ .../net/ethernet/broadcom/bnge/bnge_link.h | 7 + 5 files changed, 827 insertions(+) diff --git a/drivers/net/ethernet/broadcom/bnge/bnge.h b/drivers/net/ethern= et/broadcom/bnge/bnge.h index 83ee4749cc70..e9b83c0c64b6 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge.h +++ b/drivers/net/ethernet/broadcom/bnge/bnge.h @@ -98,6 +98,8 @@ struct bnge_queue_info { #define BNGE_PHY_FL_NO_FCS PORT_PHY_QCAPS_RESP_FLAGS_NO_FCS #define BNGE_PHY_FL_SPEEDS2 \ (PORT_PHY_QCAPS_RESP_FLAGS2_SPEEDS2_SUPPORTED << 8) +#define BNGE_PHY_FL_NO_PAUSE \ + (PORT_PHY_QCAPS_RESP_FLAGS2_PAUSE_UNSUPPORTED << 8) =20 struct bnge_dev { struct device *dev; diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_core.c b/drivers/net/e= thernet/broadcom/bnge/bnge_core.c index b4090283df0f..1c14c5fe8d61 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_core.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_core.c @@ -10,6 +10,7 @@ #include "bnge_devlink.h" #include "bnge_hwrm.h" #include "bnge_hwrm_lib.h" +#include "bnge_link.h" =20 MODULE_LICENSE("GPL"); MODULE_DESCRIPTION(DRV_SUMMARY); diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_ethtool.c b/drivers/ne= t/ethernet/broadcom/bnge/bnge_ethtool.c index 569371c1b4f2..e4d3041db0af 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_ethtool.c @@ -11,6 +11,25 @@ =20 #include "bnge.h" #include "bnge_ethtool.h" +#include "bnge_hwrm_lib.h" + +static int bnge_nway_reset(struct net_device *dev) +{ + struct bnge_net *bn =3D netdev_priv(dev); + struct bnge_dev *bd =3D bn->bd; + int rc =3D 0; + + if (!BNGE_PHY_CFG_ABLE(bd)) + return -EOPNOTSUPP; + + if (!(bn->eth_link_info.autoneg & BNGE_AUTONEG_SPEED)) + return -EINVAL; + + if (netif_running(dev)) + rc =3D bnge_hwrm_set_link_setting(bn, true); + + return rc; +} =20 static void bnge_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) @@ -24,7 +43,12 @@ static void bnge_get_drvinfo(struct net_device *dev, } =20 static const struct ethtool_ops bnge_ethtool_ops =3D { + .cap_link_lanes_supported =3D 1, + .get_link_ksettings =3D bnge_get_link_ksettings, + .set_link_ksettings =3D bnge_set_link_ksettings, .get_drvinfo =3D bnge_get_drvinfo, + .get_link =3D bnge_get_link, + .nway_reset =3D bnge_nway_reset, }; =20 void bnge_set_ethtool_ops(struct net_device *dev) diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_link.c b/drivers/net/e= thernet/broadcom/bnge/bnge_link.c index e5a7b48f6a3f..03beb5593069 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_link.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_link.c @@ -7,6 +7,51 @@ #include "bnge_link.h" #include "bnge_hwrm_lib.h" =20 +enum bnge_media_type { + BNGE_MEDIA_UNKNOWN =3D 0, + BNGE_MEDIA_CR, + BNGE_MEDIA_SR, + BNGE_MEDIA_LR_ER_FR, + BNGE_MEDIA_KR, + __BNGE_MEDIA_END, +}; + +static const enum bnge_media_type bnge_phy_types[] =3D { + [PORT_PHY_QCFG_RESP_PHY_TYPE_100G_BASECR4] =3D BNGE_MEDIA_CR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_100G_BASESR4] =3D BNGE_MEDIA_SR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_100G_BASELR4] =3D BNGE_MEDIA_LR_ER_FR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_100G_BASEER4] =3D BNGE_MEDIA_LR_ER_FR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_100G_BASESR10] =3D BNGE_MEDIA_SR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_200G_BASECR4] =3D BNGE_MEDIA_CR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_200G_BASESR4] =3D BNGE_MEDIA_SR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_200G_BASELR4] =3D BNGE_MEDIA_LR_ER_FR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_200G_BASEER4] =3D BNGE_MEDIA_LR_ER_FR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_50G_BASECR] =3D BNGE_MEDIA_CR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_50G_BASESR] =3D BNGE_MEDIA_SR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_50G_BASELR] =3D BNGE_MEDIA_LR_ER_FR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_50G_BASEER] =3D BNGE_MEDIA_LR_ER_FR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_100G_BASECR2] =3D BNGE_MEDIA_CR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_100G_BASESR2] =3D BNGE_MEDIA_SR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_100G_BASELR2] =3D BNGE_MEDIA_LR_ER_FR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_100G_BASEER2] =3D BNGE_MEDIA_LR_ER_FR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_100G_BASECR] =3D BNGE_MEDIA_CR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_100G_BASESR] =3D BNGE_MEDIA_SR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_100G_BASELR] =3D BNGE_MEDIA_LR_ER_FR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_100G_BASEER] =3D BNGE_MEDIA_LR_ER_FR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_200G_BASECR2] =3D BNGE_MEDIA_CR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_200G_BASESR2] =3D BNGE_MEDIA_SR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_200G_BASELR2] =3D BNGE_MEDIA_LR_ER_FR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_200G_BASEER2] =3D BNGE_MEDIA_LR_ER_FR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_400G_BASECR8] =3D BNGE_MEDIA_CR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_400G_BASESR8] =3D BNGE_MEDIA_SR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_400G_BASELR8] =3D BNGE_MEDIA_LR_ER_FR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_400G_BASEER8] =3D BNGE_MEDIA_LR_ER_FR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_400G_BASECR4] =3D BNGE_MEDIA_CR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_400G_BASESR4] =3D BNGE_MEDIA_SR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_400G_BASELR4] =3D BNGE_MEDIA_LR_ER_FR, + [PORT_PHY_QCFG_RESP_PHY_TYPE_400G_BASEER4] =3D BNGE_MEDIA_LR_ER_FR, +}; + static u32 bnge_fw_to_ethtool_speed(u16 fw_link_speed) { switch (fw_link_speed) { @@ -461,3 +506,751 @@ void bnge_report_link(struct bnge_dev *bd) netdev_info(bd->netdev, "NIC Link is Down\n"); } } + +static void bnge_get_ethtool_modes(struct bnge_net *bn, + struct ethtool_link_ksettings *lk_ksettings) +{ + struct bnge_ethtool_link_info *elink_info; + struct bnge_link_info *link_info; + struct bnge_dev *bd =3D bn->bd; + + elink_info =3D &bn->eth_link_info; + link_info =3D &bd->link_info; + + if (!(bd->phy_flags & BNGE_PHY_FL_NO_PAUSE)) { + linkmode_set_bit(ETHTOOL_LINK_MODE_Pause_BIT, + lk_ksettings->link_modes.supported); + linkmode_set_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, + lk_ksettings->link_modes.supported); + } + + if (link_info->support_auto_speeds || link_info->support_auto_speeds2 || + link_info->support_pam4_auto_speeds) + linkmode_set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, + lk_ksettings->link_modes.supported); + + if (~elink_info->autoneg & BNGE_AUTONEG_FLOW_CTRL) + return; + + if (link_info->auto_pause_setting & BNGE_LINK_PAUSE_RX) + linkmode_set_bit(ETHTOOL_LINK_MODE_Pause_BIT, + lk_ksettings->link_modes.advertising); + if (hweight8(link_info->auto_pause_setting & BNGE_LINK_PAUSE_BOTH) =3D=3D= 1) + linkmode_set_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, + lk_ksettings->link_modes.advertising); + if (link_info->lp_pause & BNGE_LINK_PAUSE_RX) + linkmode_set_bit(ETHTOOL_LINK_MODE_Pause_BIT, + lk_ksettings->link_modes.lp_advertising); + if (hweight8(link_info->lp_pause & BNGE_LINK_PAUSE_BOTH) =3D=3D 1) + linkmode_set_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, + lk_ksettings->link_modes.lp_advertising); +} + +u32 bnge_get_link(struct net_device *dev) +{ + struct bnge_net *bn =3D netdev_priv(dev); + + return BNGE_LINK_IS_UP(bn->bd); +} + +static enum bnge_media_type +bnge_get_media(struct bnge_link_info *link_info) +{ + switch (link_info->media_type) { + case PORT_PHY_QCFG_RESP_MEDIA_TYPE_DAC: + return BNGE_MEDIA_CR; + default: + if (link_info->phy_type < ARRAY_SIZE(bnge_phy_types)) + return bnge_phy_types[link_info->phy_type]; + return BNGE_MEDIA_UNKNOWN; + } +} + +enum bnge_link_speed_indices { + BNGE_LINK_SPEED_UNKNOWN =3D 0, + BNGE_LINK_SPEED_50GB_IDX, + BNGE_LINK_SPEED_100GB_IDX, + BNGE_LINK_SPEED_200GB_IDX, + BNGE_LINK_SPEED_400GB_IDX, + BNGE_LINK_SPEED_800GB_IDX, + __BNGE_LINK_SPEED_END +}; + +static enum bnge_link_speed_indices bnge_fw_speed_idx(u16 speed) +{ + switch (speed) { + case BNGE_LINK_SPEED_50GB: + case BNGE_LINK_SPEED_50GB_PAM4: + return BNGE_LINK_SPEED_50GB_IDX; + case BNGE_LINK_SPEED_100GB: + case BNGE_LINK_SPEED_100GB_PAM4: + case BNGE_LINK_SPEED_100GB_PAM4_112: + return BNGE_LINK_SPEED_100GB_IDX; + case BNGE_LINK_SPEED_200GB: + case BNGE_LINK_SPEED_200GB_PAM4: + case BNGE_LINK_SPEED_200GB_PAM4_112: + return BNGE_LINK_SPEED_200GB_IDX; + case BNGE_LINK_SPEED_400GB: + case BNGE_LINK_SPEED_400GB_PAM4: + case BNGE_LINK_SPEED_400GB_PAM4_112: + return BNGE_LINK_SPEED_400GB_IDX; + case BNGE_LINK_SPEED_800GB: + case BNGE_LINK_SPEED_800GB_PAM4_112: + return BNGE_LINK_SPEED_800GB_IDX; + default: + return BNGE_LINK_SPEED_UNKNOWN; + } +} + +/* Compile-time link mode mapping table. + * Indexed by [speed_idx][sig_mode][media]. + */ +#define BNGE_LINK_M(speed, sig, media, lm) \ + [BNGE_LINK_SPEED_##speed##_IDX] \ + [BNGE_SIG_MODE_##sig] \ + [BNGE_MEDIA_##media] =3D ETHTOOL_LINK_MODE_##lm##_Full_BIT + +static const enum ethtool_link_mode_bit_indices +bnge_link_modes[__BNGE_LINK_SPEED_END] + [BNGE_SIG_MODE_MAX] + [__BNGE_MEDIA_END] =3D { + /* 50GB PAM4 */ + BNGE_LINK_M(50GB, PAM4, CR, 50000baseCR), + BNGE_LINK_M(50GB, PAM4, SR, 50000baseSR), + BNGE_LINK_M(50GB, PAM4, LR_ER_FR, 50000baseLR_ER_FR), + BNGE_LINK_M(50GB, PAM4, KR, 50000baseKR), + + /* 100GB NRZ */ + BNGE_LINK_M(100GB, NRZ, CR, 100000baseCR4), + BNGE_LINK_M(100GB, NRZ, SR, 100000baseSR4), + BNGE_LINK_M(100GB, NRZ, LR_ER_FR, 100000baseLR4_ER4), + BNGE_LINK_M(100GB, NRZ, KR, 100000baseKR4), + + /* 100GB PAM4 */ + BNGE_LINK_M(100GB, PAM4, CR, 100000baseCR2), + BNGE_LINK_M(100GB, PAM4, SR, 100000baseSR2), + BNGE_LINK_M(100GB, PAM4, LR_ER_FR, 100000baseLR2_ER2_FR2), + BNGE_LINK_M(100GB, PAM4, KR, 100000baseKR2), + + /* 100GB PAM4_112 */ + BNGE_LINK_M(100GB, PAM4_112, CR, 100000baseCR), + BNGE_LINK_M(100GB, PAM4_112, SR, 100000baseSR), + BNGE_LINK_M(100GB, PAM4_112, LR_ER_FR, 100000baseLR_ER_FR), + BNGE_LINK_M(100GB, PAM4_112, KR, 100000baseKR), + + /* 200GB PAM4 */ + BNGE_LINK_M(200GB, PAM4, CR, 200000baseCR4), + BNGE_LINK_M(200GB, PAM4, SR, 200000baseSR4), + BNGE_LINK_M(200GB, PAM4, LR_ER_FR, 200000baseLR4_ER4_FR4), + BNGE_LINK_M(200GB, PAM4, KR, 200000baseKR4), + + /* 200GB PAM4_112 */ + BNGE_LINK_M(200GB, PAM4_112, CR, 200000baseCR2), + BNGE_LINK_M(200GB, PAM4_112, SR, 200000baseSR2), + BNGE_LINK_M(200GB, PAM4_112, LR_ER_FR, 200000baseLR2_ER2_FR2), + BNGE_LINK_M(200GB, PAM4_112, KR, 200000baseKR2), + + /* 400GB PAM4 */ + BNGE_LINK_M(400GB, PAM4, CR, 400000baseCR8), + BNGE_LINK_M(400GB, PAM4, SR, 400000baseSR8), + BNGE_LINK_M(400GB, PAM4, LR_ER_FR, 400000baseLR8_ER8_FR8), + BNGE_LINK_M(400GB, PAM4, KR, 400000baseKR8), + + /* 400GB PAM4_112 */ + BNGE_LINK_M(400GB, PAM4_112, CR, 400000baseCR4), + BNGE_LINK_M(400GB, PAM4_112, SR, 400000baseSR4), + BNGE_LINK_M(400GB, PAM4_112, LR_ER_FR, 400000baseLR4_ER4_FR4), + BNGE_LINK_M(400GB, PAM4_112, KR, 400000baseKR4), + + /* 800GB PAM4_112 */ + BNGE_LINK_M(800GB, PAM4_112, CR, 800000baseCR8), + BNGE_LINK_M(800GB, PAM4_112, SR, 800000baseSR8), + BNGE_LINK_M(800GB, PAM4_112, KR, 800000baseKR8), +}; + +#define BNGE_LINK_MODE_UNKNOWN -1 + +static enum ethtool_link_mode_bit_indices +bnge_get_link_mode(struct bnge_net *bn) +{ + enum ethtool_link_mode_bit_indices link_mode; + struct bnge_ethtool_link_info *elink_info; + enum bnge_link_speed_indices speed; + struct bnge_link_info *link_info; + struct bnge_dev *bd =3D bn->bd; + enum bnge_media_type media; + u8 sig_mode; + + elink_info =3D &bn->eth_link_info; + link_info =3D &bd->link_info; + + if (link_info->phy_link_status !=3D BNGE_LINK_LINK) + return BNGE_LINK_MODE_UNKNOWN; + + media =3D bnge_get_media(link_info); + if (BNGE_AUTO_MODE(link_info->auto_mode)) { + speed =3D bnge_fw_speed_idx(link_info->link_speed); + sig_mode =3D link_info->active_fec_sig_mode & + PORT_PHY_QCFG_RESP_SIGNAL_MODE_MASK; + } else { + speed =3D bnge_fw_speed_idx(elink_info->req_link_speed); + sig_mode =3D elink_info->req_signal_mode; + } + if (sig_mode >=3D BNGE_SIG_MODE_MAX) + return BNGE_LINK_MODE_UNKNOWN; + + /* Since ETHTOOL_LINK_MODE_10baseT_Half_BIT is defined as 0 and + * not actually supported, the zeroes in this map can be safely + * used to represent unknown link modes. + */ + link_mode =3D bnge_link_modes[speed][sig_mode][media]; + if (!link_mode) + return BNGE_LINK_MODE_UNKNOWN; + + return link_mode; +} + +static const u16 bnge_nrz_speed_masks[__BNGE_LINK_SPEED_END] =3D { + [BNGE_LINK_SPEED_100GB_IDX] =3D BNGE_LINK_SPEED_MSK_100GB, +}; + +static const u16 bnge_pam4_speed_masks[__BNGE_LINK_SPEED_END] =3D { + [BNGE_LINK_SPEED_50GB_IDX] =3D BNGE_LINK_PAM4_SPEED_MSK_50GB, + [BNGE_LINK_SPEED_100GB_IDX] =3D BNGE_LINK_PAM4_SPEED_MSK_100GB, + [BNGE_LINK_SPEED_200GB_IDX] =3D BNGE_LINK_PAM4_SPEED_MSK_200GB, +}; + +static const u16 bnge_nrz_speeds2_masks[__BNGE_LINK_SPEED_END] =3D { + [BNGE_LINK_SPEED_100GB_IDX] =3D BNGE_LINK_SPEEDS2_MSK_100GB, +}; + +static const u16 bnge_pam4_speeds2_masks[__BNGE_LINK_SPEED_END] =3D { + [BNGE_LINK_SPEED_50GB_IDX] =3D BNGE_LINK_SPEEDS2_MSK_50GB_PAM4, + [BNGE_LINK_SPEED_100GB_IDX] =3D BNGE_LINK_SPEEDS2_MSK_100GB_PAM4, + [BNGE_LINK_SPEED_200GB_IDX] =3D BNGE_LINK_SPEEDS2_MSK_200GB_PAM4, + [BNGE_LINK_SPEED_400GB_IDX] =3D BNGE_LINK_SPEEDS2_MSK_400GB_PAM4, +}; + +static const u16 bnge_pam4_112_speeds2_masks[__BNGE_LINK_SPEED_END] =3D { + [BNGE_LINK_SPEED_100GB_IDX] =3D BNGE_LINK_SPEEDS2_MSK_100GB_PAM4_112, + [BNGE_LINK_SPEED_200GB_IDX] =3D BNGE_LINK_SPEEDS2_MSK_200GB_PAM4_112, + [BNGE_LINK_SPEED_400GB_IDX] =3D BNGE_LINK_SPEEDS2_MSK_400GB_PAM4_112, + [BNGE_LINK_SPEED_800GB_IDX] =3D BNGE_LINK_SPEEDS2_MSK_800GB_PAM4_112, +}; + +static enum bnge_link_speed_indices +bnge_encoding_speed_idx(u8 sig_mode, u32 phy_flags, u16 speed_msk) +{ + const u16 *speeds; + int idx, len; + + switch (sig_mode) { + case BNGE_SIG_MODE_NRZ: + if (phy_flags & BNGE_PHY_FL_SPEEDS2) { + speeds =3D bnge_nrz_speeds2_masks; + len =3D ARRAY_SIZE(bnge_nrz_speeds2_masks); + } else { + speeds =3D bnge_nrz_speed_masks; + len =3D ARRAY_SIZE(bnge_nrz_speed_masks); + } + break; + case BNGE_SIG_MODE_PAM4: + if (phy_flags & BNGE_PHY_FL_SPEEDS2) { + speeds =3D bnge_pam4_speeds2_masks; + len =3D ARRAY_SIZE(bnge_pam4_speeds2_masks); + } else { + speeds =3D bnge_pam4_speed_masks; + len =3D ARRAY_SIZE(bnge_pam4_speed_masks); + } + break; + case BNGE_SIG_MODE_PAM4_112: + speeds =3D bnge_pam4_112_speeds2_masks; + len =3D ARRAY_SIZE(bnge_pam4_112_speeds2_masks); + break; + default: + return BNGE_LINK_SPEED_UNKNOWN; + } + + for (idx =3D 0; idx < len; idx++) { + if (speeds[idx] =3D=3D speed_msk) + return idx; + } + + return BNGE_LINK_SPEED_UNKNOWN; +} + +#define BNGE_FW_SPEED_MSK_BITS 16 + +static void +__bnge_get_ethtool_speeds(unsigned long fw_mask, enum bnge_media_type medi= a, + u8 sig_mode, u32 phy_flags, unsigned long *et_mask) +{ + enum ethtool_link_mode_bit_indices link_mode; + enum bnge_link_speed_indices speed; + u8 bit; + + for_each_set_bit(bit, &fw_mask, BNGE_FW_SPEED_MSK_BITS) { + speed =3D bnge_encoding_speed_idx(sig_mode, phy_flags, 1 << bit); + if (!speed) + continue; + + link_mode =3D bnge_link_modes[speed][sig_mode][media]; + if (!link_mode) + continue; + + linkmode_set_bit(link_mode, et_mask); + } +} + +static void +bnge_get_ethtool_speeds(unsigned long fw_mask, enum bnge_media_type media, + u8 sig_mode, u32 phy_flags, unsigned long *et_mask) +{ + if (media) { + __bnge_get_ethtool_speeds(fw_mask, media, sig_mode, phy_flags, + et_mask); + return; + } + + /* list speeds for all media if unknown */ + for (media =3D 1; media < __BNGE_MEDIA_END; media++) + __bnge_get_ethtool_speeds(fw_mask, media, sig_mode, phy_flags, + et_mask); +} + +static void +bnge_get_all_ethtool_support_speeds(struct bnge_dev *bd, + enum bnge_media_type media, + struct ethtool_link_ksettings *lk_ksettings) +{ + struct bnge_link_info *link_info =3D &bd->link_info; + u16 sp_nrz, sp_pam4, sp_pam4_112 =3D 0; + u32 phy_flags =3D bd->phy_flags; + + if (phy_flags & BNGE_PHY_FL_SPEEDS2) { + sp_nrz =3D link_info->support_speeds2; + sp_pam4 =3D link_info->support_speeds2; + sp_pam4_112 =3D link_info->support_speeds2; + } else { + sp_nrz =3D link_info->support_speeds; + sp_pam4 =3D link_info->support_pam4_speeds; + } + bnge_get_ethtool_speeds(sp_nrz, media, BNGE_SIG_MODE_NRZ, phy_flags, + lk_ksettings->link_modes.supported); + bnge_get_ethtool_speeds(sp_pam4, media, BNGE_SIG_MODE_PAM4, phy_flags, + lk_ksettings->link_modes.supported); + bnge_get_ethtool_speeds(sp_pam4_112, media, BNGE_SIG_MODE_PAM4_112, + phy_flags, lk_ksettings->link_modes.supported); +} + +static void +bnge_get_all_ethtool_adv_speeds(struct bnge_net *bn, + enum bnge_media_type media, + struct ethtool_link_ksettings *lk_ksettings) +{ + struct bnge_ethtool_link_info *elink_info =3D &bn->eth_link_info; + u16 sp_nrz, sp_pam4, sp_pam4_112 =3D 0; + struct bnge_dev *bd =3D bn->bd; + u32 phy_flags; + + phy_flags =3D bd->phy_flags; + sp_nrz =3D elink_info->advertising; + + if (phy_flags & BNGE_PHY_FL_SPEEDS2) { + sp_pam4 =3D elink_info->advertising; + sp_pam4_112 =3D elink_info->advertising; + } else { + sp_pam4 =3D elink_info->advertising_pam4; + } + bnge_get_ethtool_speeds(sp_nrz, media, BNGE_SIG_MODE_NRZ, phy_flags, + lk_ksettings->link_modes.advertising); + bnge_get_ethtool_speeds(sp_pam4, media, BNGE_SIG_MODE_PAM4, phy_flags, + lk_ksettings->link_modes.advertising); + bnge_get_ethtool_speeds(sp_pam4_112, media, BNGE_SIG_MODE_PAM4_112, + phy_flags, + lk_ksettings->link_modes.advertising); +} + +static void +bnge_get_all_ethtool_lp_speeds(struct bnge_dev *bd, + enum bnge_media_type media, + struct ethtool_link_ksettings *lk_ksettings) +{ + struct bnge_link_info *link_info =3D &bd->link_info; + u32 phy_flags =3D bd->phy_flags; + + bnge_get_ethtool_speeds(link_info->lp_auto_link_speeds, media, + BNGE_SIG_MODE_NRZ, phy_flags, + lk_ksettings->link_modes.lp_advertising); + bnge_get_ethtool_speeds(link_info->lp_auto_pam4_link_speeds, media, + BNGE_SIG_MODE_PAM4, phy_flags, + lk_ksettings->link_modes.lp_advertising); +} + +static void bnge_update_speed(u32 *delta, bool installed_media, u16 *speed= s, + u16 speed_msk, const unsigned long *et_mask, + enum ethtool_link_mode_bit_indices mode) +{ + bool mode_desired =3D linkmode_test_bit(mode, et_mask); + + if (!mode) + return; + + /* enabled speeds for installed media should override */ + if (installed_media && mode_desired) { + *speeds |=3D speed_msk; + *delta |=3D speed_msk; + return; + } + + /* many to one mapping, only allow one change per fw_speed bit */ + if (!(*delta & speed_msk) && (mode_desired =3D=3D !(*speeds & speed_msk))= ) { + *speeds ^=3D speed_msk; + *delta |=3D speed_msk; + } +} + +static void bnge_set_ethtool_speeds(struct bnge_net *bn, + const unsigned long *et_mask) +{ + struct bnge_ethtool_link_info *elink_info =3D &bn->eth_link_info; + u16 const *sp_msks, *sp_pam4_msks, *sp_pam4_112_msks =3D NULL; + u16 *adv, *adv_pam4, *adv_pam4_112 =3D NULL; + struct bnge_link_info *link_info; + struct bnge_dev *bd =3D bn->bd; + enum bnge_media_type media; + u32 delta_pam4_112 =3D 0; + u32 delta_pam4 =3D 0; + u32 delta_nrz =3D 0; + int i, m; + + link_info =3D &bd->link_info; + media =3D bnge_get_media(link_info); + adv =3D &elink_info->advertising; + + if (bd->phy_flags & BNGE_PHY_FL_SPEEDS2) { + adv_pam4 =3D &elink_info->advertising; + adv_pam4_112 =3D &elink_info->advertising; + sp_msks =3D bnge_nrz_speeds2_masks; + sp_pam4_msks =3D bnge_pam4_speeds2_masks; + sp_pam4_112_msks =3D bnge_pam4_112_speeds2_masks; + } else { + adv_pam4 =3D &elink_info->advertising_pam4; + sp_msks =3D bnge_nrz_speed_masks; + sp_pam4_msks =3D bnge_pam4_speed_masks; + } + for (i =3D 1; i < __BNGE_LINK_SPEED_END; i++) { + /* accept any legal media from user */ + for (m =3D 1; m < __BNGE_MEDIA_END; m++) { + bnge_update_speed(&delta_nrz, m =3D=3D media, + adv, sp_msks[i], et_mask, + bnge_link_modes[i][BNGE_SIG_MODE_NRZ][m]); + bnge_update_speed(&delta_pam4, m =3D=3D media, + adv_pam4, sp_pam4_msks[i], et_mask, + bnge_link_modes[i][BNGE_SIG_MODE_PAM4][m]); + if (!adv_pam4_112) + continue; + + bnge_update_speed(&delta_pam4_112, m =3D=3D media, + adv_pam4_112, sp_pam4_112_msks[i], + et_mask, + bnge_link_modes[i][BNGE_SIG_MODE_PAM4_112][m]); + } + } +} + +static void +bnge_fw_to_ethtool_advertised_fec(struct bnge_link_info *link_info, + struct ethtool_link_ksettings *lk_ksettings) +{ + u16 fec_cfg =3D link_info->fec_cfg; + + if ((fec_cfg & BNGE_FEC_NONE) || !(fec_cfg & BNGE_FEC_AUTONEG)) { + linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_NONE_BIT, + lk_ksettings->link_modes.advertising); + return; + } + if (fec_cfg & BNGE_FEC_ENC_BASE_R) + linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_BASER_BIT, + lk_ksettings->link_modes.advertising); + if (fec_cfg & BNGE_FEC_ENC_RS) + linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_RS_BIT, + lk_ksettings->link_modes.advertising); + if (fec_cfg & BNGE_FEC_ENC_LLRS) + linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_LLRS_BIT, + lk_ksettings->link_modes.advertising); +} + +static void +bnge_fw_to_ethtool_support_fec(struct bnge_link_info *link_info, + struct ethtool_link_ksettings *lk_ksettings) +{ + u16 fec_cfg =3D link_info->fec_cfg; + + if (fec_cfg & BNGE_FEC_NONE) { + linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_NONE_BIT, + lk_ksettings->link_modes.supported); + return; + } + if (fec_cfg & BNGE_FEC_ENC_BASE_R_CAP) + linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_BASER_BIT, + lk_ksettings->link_modes.supported); + if (fec_cfg & BNGE_FEC_ENC_RS_CAP) + linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_RS_BIT, + lk_ksettings->link_modes.supported); + if (fec_cfg & BNGE_FEC_ENC_LLRS_CAP) + linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_LLRS_BIT, + lk_ksettings->link_modes.supported); +} + +static void bnge_get_default_speeds(struct bnge_net *bn, + struct ethtool_link_ksettings *lk_ksettings) +{ + struct bnge_ethtool_link_info *elink_info =3D &bn->eth_link_info; + struct ethtool_link_settings *base =3D &lk_ksettings->base; + struct bnge_link_info *link_info; + struct bnge_dev *bd =3D bn->bd; + + link_info =3D &bd->link_info; + + if (link_info->link_state =3D=3D BNGE_LINK_STATE_UP) { + base->speed =3D bnge_fw_to_ethtool_speed(link_info->link_speed); + base->duplex =3D DUPLEX_HALF; + if (link_info->duplex & BNGE_LINK_DUPLEX_FULL) + base->duplex =3D DUPLEX_FULL; + lk_ksettings->lanes =3D link_info->active_lanes; + } else if (!elink_info->autoneg) { + base->speed =3D + bnge_fw_to_ethtool_speed(elink_info->req_link_speed); + base->duplex =3D DUPLEX_HALF; + if (elink_info->req_duplex =3D=3D BNGE_LINK_DUPLEX_FULL) + base->duplex =3D DUPLEX_FULL; + } +} + +int bnge_get_link_ksettings(struct net_device *dev, + struct ethtool_link_ksettings *lk_ksettings) +{ + struct ethtool_link_settings *base =3D &lk_ksettings->base; + enum ethtool_link_mode_bit_indices link_mode; + struct bnge_net *bn =3D netdev_priv(dev); + struct bnge_link_info *link_info; + struct bnge_dev *bd =3D bn->bd; + enum bnge_media_type media; + + ethtool_link_ksettings_zero_link_mode(lk_ksettings, lp_advertising); + ethtool_link_ksettings_zero_link_mode(lk_ksettings, advertising); + ethtool_link_ksettings_zero_link_mode(lk_ksettings, supported); + base->duplex =3D DUPLEX_UNKNOWN; + base->speed =3D SPEED_UNKNOWN; + link_info =3D &bd->link_info; + + bnge_get_ethtool_modes(bn, lk_ksettings); + media =3D bnge_get_media(link_info); + bnge_get_all_ethtool_support_speeds(bd, media, lk_ksettings); + bnge_fw_to_ethtool_support_fec(link_info, lk_ksettings); + link_mode =3D bnge_get_link_mode(bn); + if (link_mode !=3D BNGE_LINK_MODE_UNKNOWN) + ethtool_params_from_link_mode(lk_ksettings, link_mode); + else + bnge_get_default_speeds(bn, lk_ksettings); + + if (bn->eth_link_info.autoneg) { + bnge_fw_to_ethtool_advertised_fec(link_info, lk_ksettings); + linkmode_set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, + lk_ksettings->link_modes.advertising); + base->autoneg =3D AUTONEG_ENABLE; + bnge_get_all_ethtool_adv_speeds(bn, media, lk_ksettings); + if (link_info->phy_link_status =3D=3D BNGE_LINK_LINK) + bnge_get_all_ethtool_lp_speeds(bd, media, lk_ksettings); + } else { + base->autoneg =3D AUTONEG_DISABLE; + } + + linkmode_set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, + lk_ksettings->link_modes.supported); + linkmode_set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, + lk_ksettings->link_modes.advertising); + + if (link_info->media_type =3D=3D PORT_PHY_QCFG_RESP_MEDIA_TYPE_DAC) + base->port =3D PORT_DA; + else + base->port =3D PORT_FIBRE; + base->phy_address =3D link_info->phy_addr; + + return 0; +} + +static int +bnge_force_link_speed(struct net_device *dev, u32 ethtool_speed, u32 lanes) +{ + u16 support_pam4_spds, support_spds2, support_spds; + struct bnge_ethtool_link_info *elink_info; + struct bnge_net *bn =3D netdev_priv(dev); + struct bnge_link_info *link_info; + u8 sig_mode =3D BNGE_SIG_MODE_NRZ; + struct bnge_dev *bd =3D bn->bd; + u32 lanes_needed =3D 1; + u16 fw_speed =3D 0; + + elink_info =3D &bn->eth_link_info; + link_info =3D &bd->link_info; + support_pam4_spds =3D link_info->support_pam4_speeds; + support_spds2 =3D link_info->support_speeds2; + support_spds =3D link_info->support_speeds; + + switch (ethtool_speed) { + case SPEED_50000: + if (((support_spds & BNGE_LINK_SPEED_MSK_50GB) || + (support_spds2 & BNGE_LINK_SPEEDS2_MSK_50GB)) && + lanes !=3D 1) { + fw_speed =3D PORT_PHY_CFG_REQ_FORCE_LINK_SPEED_50GB; + lanes_needed =3D 2; + } else if (support_pam4_spds & BNGE_LINK_PAM4_SPEED_MSK_50GB) { + fw_speed =3D PORT_PHY_CFG_REQ_FORCE_PAM4_LINK_SPEED_50GB; + sig_mode =3D BNGE_SIG_MODE_PAM4; + } else if (support_spds2 & BNGE_LINK_SPEEDS2_MSK_50GB_PAM4) { + fw_speed =3D BNGE_LINK_SPEED_50GB_PAM4; + sig_mode =3D BNGE_SIG_MODE_PAM4; + } + break; + case SPEED_100000: + if (((support_spds & BNGE_LINK_SPEED_MSK_100GB) || + (support_spds2 & BNGE_LINK_SPEEDS2_MSK_100GB)) && + lanes !=3D 2 && lanes !=3D 1) { + fw_speed =3D PORT_PHY_CFG_REQ_FORCE_LINK_SPEED_100GB; + lanes_needed =3D 4; + } else if (support_pam4_spds & BNGE_LINK_PAM4_SPEED_MSK_100GB) { + fw_speed =3D PORT_PHY_CFG_REQ_FORCE_PAM4_LINK_SPEED_100GB; + sig_mode =3D BNGE_SIG_MODE_PAM4; + lanes_needed =3D 2; + } else if ((support_spds2 & BNGE_LINK_SPEEDS2_MSK_100GB_PAM4) && + lanes !=3D 1) { + fw_speed =3D BNGE_LINK_SPEED_100GB_PAM4; + sig_mode =3D BNGE_SIG_MODE_PAM4; + lanes_needed =3D 2; + } else if (support_spds2 & + BNGE_LINK_SPEEDS2_MSK_100GB_PAM4_112) { + fw_speed =3D BNGE_LINK_SPEED_100GB_PAM4_112; + sig_mode =3D BNGE_SIG_MODE_PAM4_112; + } + break; + case SPEED_200000: + if (support_pam4_spds & BNGE_LINK_PAM4_SPEED_MSK_200GB) { + fw_speed =3D PORT_PHY_CFG_REQ_FORCE_PAM4_LINK_SPEED_200GB; + sig_mode =3D BNGE_SIG_MODE_PAM4; + lanes_needed =3D 4; + } else if ((support_spds2 & BNGE_LINK_SPEEDS2_MSK_200GB_PAM4) && + lanes !=3D 2) { + fw_speed =3D BNGE_LINK_SPEED_200GB_PAM4; + sig_mode =3D BNGE_SIG_MODE_PAM4; + lanes_needed =3D 4; + } else if (support_spds2 & + BNGE_LINK_SPEEDS2_MSK_200GB_PAM4_112) { + fw_speed =3D BNGE_LINK_SPEED_200GB_PAM4_112; + sig_mode =3D BNGE_SIG_MODE_PAM4_112; + lanes_needed =3D 2; + } + break; + case SPEED_400000: + if ((support_spds2 & BNGE_LINK_SPEEDS2_MSK_400GB_PAM4) && + lanes !=3D 4) { + fw_speed =3D BNGE_LINK_SPEED_400GB_PAM4; + sig_mode =3D BNGE_SIG_MODE_PAM4; + lanes_needed =3D 8; + } else if (support_spds2 & + BNGE_LINK_SPEEDS2_MSK_400GB_PAM4_112) { + fw_speed =3D BNGE_LINK_SPEED_400GB_PAM4_112; + sig_mode =3D BNGE_SIG_MODE_PAM4_112; + lanes_needed =3D 4; + } + break; + case SPEED_800000: + if (support_spds2 & BNGE_LINK_SPEEDS2_MSK_800GB_PAM4_112) { + fw_speed =3D BNGE_LINK_SPEED_800GB_PAM4_112; + sig_mode =3D BNGE_SIG_MODE_PAM4_112; + lanes_needed =3D 8; + } + break; + default: + break; + } + + if (!fw_speed) { + netdev_err(dev, "unsupported speed!\n"); + return -EINVAL; + } + + if (lanes && lanes !=3D lanes_needed) { + netdev_err(dev, "unsupported number of lanes for speed\n"); + return -EINVAL; + } + + if (elink_info->req_link_speed =3D=3D fw_speed && + elink_info->req_signal_mode =3D=3D sig_mode && + elink_info->autoneg =3D=3D 0) + return -EALREADY; + + elink_info->req_link_speed =3D fw_speed; + elink_info->req_signal_mode =3D sig_mode; + elink_info->req_duplex =3D BNGE_LINK_DUPLEX_FULL; + elink_info->autoneg =3D 0; + elink_info->advertising =3D 0; + elink_info->advertising_pam4 =3D 0; + + return 0; +} + +int bnge_set_link_ksettings(struct net_device *dev, + const struct ethtool_link_ksettings *lk_ksettings) +{ + const struct ethtool_link_settings *base =3D &lk_ksettings->base; + struct bnge_ethtool_link_info *elink_info; + struct bnge_net *bn =3D netdev_priv(dev); + struct bnge_link_info *link_info; + struct bnge_dev *bd =3D bn->bd; + bool set_pause =3D false; + int rc =3D 0; + + elink_info =3D &bn->eth_link_info; + link_info =3D &bd->link_info; + + if (!BNGE_PHY_CFG_ABLE(bd)) + return -EOPNOTSUPP; + + if (base->autoneg =3D=3D AUTONEG_ENABLE) { + bnge_set_ethtool_speeds(bn, + lk_ksettings->link_modes.advertising); + elink_info->autoneg |=3D BNGE_AUTONEG_SPEED; + if (!elink_info->advertising && !elink_info->advertising_pam4) { + elink_info->advertising =3D + link_info->support_auto_speeds; + elink_info->advertising_pam4 =3D + link_info->support_pam4_auto_speeds; + } + /* any change to autoneg will cause link change, therefore the + * driver should put back the original pause setting in autoneg + */ + if (!(bd->phy_flags & BNGE_PHY_FL_NO_PAUSE)) + set_pause =3D true; + } else { + if (base->duplex =3D=3D DUPLEX_HALF) { + netdev_err(dev, "HALF DUPLEX is not supported!\n"); + rc =3D -EINVAL; + goto set_setting_exit; + } + rc =3D bnge_force_link_speed(dev, base->speed, + lk_ksettings->lanes); + if (rc) { + if (rc =3D=3D -EALREADY) + rc =3D 0; + goto set_setting_exit; + } + } + + if (netif_running(dev)) + rc =3D bnge_hwrm_set_link_setting(bn, set_pause); + +set_setting_exit: + return rc; +} diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_link.h b/drivers/net/e= thernet/broadcom/bnge/bnge_link.h index f22dec2899e3..70d0901b9a32 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_link.h +++ b/drivers/net/ethernet/broadcom/bnge/bnge_link.h @@ -4,6 +4,8 @@ #ifndef _BNGE_LINK_H_ #define _BNGE_LINK_H_ =20 +#include + #define BNGE_PHY_CFG_ABLE(bd) \ ((bd)->link_info.phy_enabled) =20 @@ -190,4 +192,9 @@ void bnge_report_link(struct bnge_dev *bd); bool bnge_support_speed_dropped(struct bnge_net *bn); void bnge_init_ethtool_link_settings(struct bnge_net *bn); int bnge_probe_phy(struct bnge_net *bn, bool fw_dflt); +int bnge_set_link_ksettings(struct net_device *dev, + const struct ethtool_link_ksettings *lk_ksettings); +int bnge_get_link_ksettings(struct net_device *dev, + struct ethtool_link_ksettings *lk_ksettings); +u32 bnge_get_link(struct net_device *dev); #endif /* _BNGE_LINK_H_ */ --=20 2.47.1 From nobody Mon Apr 6 16:23:50 2026 Received: from mail-pj1-f97.google.com (mail-pj1-f97.google.com [209.85.216.97]) (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 1A95A314D0B for ; Thu, 19 Mar 2026 05:52:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.97 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899563; cv=none; b=eBfyRm7ffXW/OlklHjrf+HiVCyo0cT3fhFuoMEV/0qMQgXDGjsQVz/Sg23Y0b3o5lIGYBDk1OQhsumZG/47pXSRI0V3LOxla8otRZ9a+QvLk54HfsFJBc6iglD4BDu8IqkSndrF85KyaB4pX3/nAe/iZdD2GIvWqAlKnuTUsM2Q= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899563; c=relaxed/simple; bh=cwbyj1ooo9Qz7huYKrO/pQhap2OaZVcpI54mpWxp6Qk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=RDSeJdyvOH+ktJ8vjk2zu+dGhrUDMI5o294NOIE2WdWGnaE6XTgLDPOUMkmAgmgF0myUJJnepiqBA809uz9vT3GdLOsXSTRGqoY6xbHjg4Ax/hqlW/bs0gfR6qGNum8+LvZNIptHUk0KzDI+ASVCasrwTgWf1P1HydqBmrn8K9c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com; spf=fail smtp.mailfrom=broadcom.com; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b=D5jl+Hpn; arc=none smtp.client-ip=209.85.216.97 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=broadcom.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="D5jl+Hpn" Received: by mail-pj1-f97.google.com with SMTP id 98e67ed59e1d1-35b95e21ccaso783423a91.0 for ; Wed, 18 Mar 2026 22:52:41 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1773899561; x=1774504361; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=aN4rJh4Zci2AFuVsQwX5cXgl6r8zy06083cabZMtsqc=; b=UXYyW0eZpplCOM1ckQAJFSQhZi8HgO29Lw49f23hI+y5xrE/cy+FsWvbuOBqcI3p1a 9998DkL6BA4fumEhW6Ug9c2gEe9r5gkRg7frV+p01pfl6HWbommCvXFWyiJEddnkOM91 dpsC+8wJcDygAPUtKhVdmVc0/rQ94Ljvp2MdSymjhl9aRPZ8UYPhm+Q8pM1jjiORho99 yQXlivfw/4WwLAZQWNyIOMFbxuEbRXXUQV1i9nlIW4IJqB+OXzVvr528CwlWCMcuQqe0 8rEbx/UKzaetLmAEBYZ2YVKxbtzlC6VwP+yFy+4liW5qkzEszyU04RoIl8+elZzxLeLF 2BKA== X-Forwarded-Encrypted: i=1; AJvYcCU46eGmBsPyjesovssC2IXwWryn4k0O1W+mNcCUdE4a0C/VUbPaAONPah6xZUxoctno7Eg0f5ldwtbJeac=@vger.kernel.org X-Gm-Message-State: AOJu0Yye2+PqQ/LvyDNBDNiu9UYo18UY8fXDiky5g8PRgico8s9qgy3p sAZgpbENnPSvo4YKEmeswu0VqVXZZL0yXYrXo8AAqx3IlTo2uiJWl//9kMAriaLxLoEcnQ37mRp 2iGLYVuqe9LCxgG6nB3wFhyDEwYuger4W1cqDcvQhfq+SusREfSVA8OxGTKfOJzyIZJYzpRyBaE y9KJzVREb8UVEnOfydJfDWQp0dE+7VE5hG7CxF0rPfClF7l57PMB97kr042xgjDrQ24FjhGhW+Q En+Z6e20mkg+xxNmw== X-Gm-Gg: ATEYQzy3wIZPLU8Wbhvwf8nGSO1XRCuGTYTMzcvRkgUTfF4JJq1G1ZTU+ZKOAwObJVR q0wzjUEULX7AJWAOksFK9lLveS3hytmBUdPCXpV3yPCn0CckEYAj8oh+P5O7k8vrREqK5KAWHUL HfYXK+CBk6ULBdg1yKApPtyTlpu0+04odt2j34nTUkI6src2i0WkfKQhsgSUBGWBzCjKxZ36GTx 1ZyrjtEY373phiBQTPzarZLRtz+/Wfb/A+OP9v/PXuTZtgt9KFpTh0vinoebBZxQGPmdlZhqGWt Gr8JhylGol58LEadHI5k4ce0mrJk2DS0hO2vmKDudN8R45EAWroCxulSG8NZieG1tbPJl+7CjA3 VX949FUapQj8yFLG2R50kRmQm3kIZ3CR1xLc4bSuhJ0Ax3cI45HXNxpUod+QEDyXdyFOfM4d3QF o9Z/RmFxnMgQtejqx9KPf/Ncw3CD7jA+pXcPn1fuv9suEb4BBTEpPzGk5Y6Q== X-Received: by 2002:a17:90a:d410:b0:35b:aa38:42a1 with SMTP id 98e67ed59e1d1-35bc5ff4f92mr1616960a91.5.1773899561230; Wed, 18 Mar 2026 22:52:41 -0700 (PDT) Received: from smtp-us-east1-p01-i01-si01.dlp.protect.broadcom.com (address-144-49-247-117.dlp.protect.broadcom.com. [144.49.247.117]) by smtp-relay.gmail.com with ESMTPS id 98e67ed59e1d1-35bc630b7e9sm199312a91.6.2026.03.18.22.52.40 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 18 Mar 2026 22:52:41 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-yx1-f69.google.com with SMTP id 956f58d0204a3-64ca2fce827so2404240d50.0 for ; Wed, 18 Mar 2026 22:52:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1773899560; x=1774504360; 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; bh=aN4rJh4Zci2AFuVsQwX5cXgl6r8zy06083cabZMtsqc=; b=D5jl+HpnHW83Dk4G4xK/uuosGVPRlzgLsWlyonsE9Z9sAqJHWNscmdrjiHm7AljF0k 58rKI5u0aMPS6qcrDSjTvfOwoEj8OXV0QtOvPuVAtpYPy4xNeQquC7ChU1szAKS5XW1P 76XrJlcgfLDkt/Htz0rGhJ6UEps+UIBARewxw= X-Forwarded-Encrypted: i=1; AJvYcCVPZMKt4OwQoWBj1s95+jXM0j7AzNNPVZK/8FSnzGv/HbUUSw1+W36q3N7xe64D6XDsb9h0F4Xs1/y9K1s=@vger.kernel.org X-Received: by 2002:a53:d8ce:0:b0:64c:9a6c:8326 with SMTP id 956f58d0204a3-64e9cce665emr1660345d50.19.1773899559932; Wed, 18 Mar 2026 22:52:39 -0700 (PDT) X-Received: by 2002:a53:d8ce:0:b0:64c:9a6c:8326 with SMTP id 956f58d0204a3-64e9cce665emr1660336d50.19.1773899559487; Wed, 18 Mar 2026 22:52:39 -0700 (PDT) Received: from localhost.localdomain ([192.19.203.250]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-64e91a1cd32sm2918980d50.2.2026.03.18.22.52.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Mar 2026 22:52:39 -0700 (PDT) From: Vikas Gupta To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, michael.chan@broadcom.com, pavan.chebbi@broadcom.com, vsrama-krishna.nemani@broadcom.com, rajashekar.hudumula@broadcom.com, ajit.khaparde@broadcom.com, Bhargava Marreddy , Vikas Gupta Subject: [PATCH net-next v8 04/10] bng_en: implement ethtool pauseparam operations Date: Thu, 19 Mar 2026 11:21:18 +0530 Message-ID: <20260319055124.1350670-5-vikas.gupta@broadcom.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20260319055124.1350670-1-vikas.gupta@broadcom.com> References: <20260319055124.1350670-1-vikas.gupta@broadcom.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e Content-Type: text/plain; charset="utf-8" From: Bhargava Marreddy Implement .get_pauseparam and .set_pauseparam to support flow control configuration. This allows reporting and setting of autoneg, RX pause, and TX pause states. Signed-off-by: Bhargava Marreddy Reviewed-by: Vikas Gupta --- .../net/ethernet/broadcom/bnge/bnge_ethtool.c | 58 +++++++++++++++++++ 1 file changed, 58 insertions(+) diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_ethtool.c b/drivers/ne= t/ethernet/broadcom/bnge/bnge_ethtool.c index e4d3041db0af..01382ad784e3 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_ethtool.c @@ -42,6 +42,62 @@ static void bnge_get_drvinfo(struct net_device *dev, strscpy(info->bus_info, pci_name(bd->pdev), sizeof(info->bus_info)); } =20 +static void bnge_get_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *epause) +{ + struct bnge_net *bn =3D netdev_priv(dev); + struct bnge_dev *bd =3D bn->bd; + + if (bd->phy_flags & BNGE_PHY_FL_NO_PAUSE) { + epause->autoneg =3D 0; + epause->rx_pause =3D 0; + epause->tx_pause =3D 0; + return; + } + + epause->autoneg =3D !!(bn->eth_link_info.autoneg & + BNGE_AUTONEG_FLOW_CTRL); + epause->rx_pause =3D !!(bn->eth_link_info.req_flow_ctrl & + BNGE_LINK_PAUSE_RX); + epause->tx_pause =3D !!(bn->eth_link_info.req_flow_ctrl & + BNGE_LINK_PAUSE_TX); +} + +static int bnge_set_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *epause) +{ + struct bnge_ethtool_link_info *elink_info; + struct bnge_net *bn =3D netdev_priv(dev); + struct bnge_dev *bd =3D bn->bd; + + if (!BNGE_PHY_CFG_ABLE(bd) || (bd->phy_flags & BNGE_PHY_FL_NO_PAUSE)) + return -EOPNOTSUPP; + + elink_info =3D &bn->eth_link_info; + + if (epause->autoneg) { + if (!(elink_info->autoneg & BNGE_AUTONEG_SPEED)) + return -EINVAL; + + elink_info->autoneg |=3D BNGE_AUTONEG_FLOW_CTRL; + } else { + if (elink_info->autoneg & BNGE_AUTONEG_FLOW_CTRL) + elink_info->force_link_chng =3D true; + elink_info->autoneg &=3D ~BNGE_AUTONEG_FLOW_CTRL; + } + + elink_info->req_flow_ctrl =3D 0; + if (epause->rx_pause) + elink_info->req_flow_ctrl |=3D BNGE_LINK_PAUSE_RX; + if (epause->tx_pause) + elink_info->req_flow_ctrl |=3D BNGE_LINK_PAUSE_TX; + + if (netif_running(dev)) + return bnge_hwrm_set_pause(bn); + + return 0; +} + static const struct ethtool_ops bnge_ethtool_ops =3D { .cap_link_lanes_supported =3D 1, .get_link_ksettings =3D bnge_get_link_ksettings, @@ -49,6 +105,8 @@ static const struct ethtool_ops bnge_ethtool_ops =3D { .get_drvinfo =3D bnge_get_drvinfo, .get_link =3D bnge_get_link, .nway_reset =3D bnge_nway_reset, + .get_pauseparam =3D bnge_get_pauseparam, + .set_pauseparam =3D bnge_set_pauseparam, }; =20 void bnge_set_ethtool_ops(struct net_device *dev) --=20 2.47.1 From nobody Mon Apr 6 16:23:50 2026 Received: from mail-qt1-f228.google.com (mail-qt1-f228.google.com [209.85.160.228]) (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 2FDDD2E06EF for ; Thu, 19 Mar 2026 05:52:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.228 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899569; cv=none; b=Gk1sXZYaF4bel5K0sV3Ayh+lifPN/aBbVChxeIMSXtUcn6ERmYmt1CXTH1L5kcNS2bzFeMlo3L1Wvrz6IUioPDV6DZ6ZWjeHXcMOceUdiH3LMxN9kpX1aUf2HIghreyX2qfmZInywvePJZE81EcI+pS3HIVR0B4Oas0JMulZ698= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899569; c=relaxed/simple; bh=5q3LLdThLJcUefA8Xuh1O5R7wfiiqqxIiJlFBLi6Ez4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ivRjs2FJ3kzLYBRsQgvk1iiMjWa8UrVhBgHT1vZBF+gzcOVKOO4V6kx/KFT0JFrbvaT37a/F9/bwRYmI4P4lq4KfVJJxAS8INWGHAyJ4uK1uv0oXoeFXM0dnWiiplXFsvrFMa2bO6w9QdioeLafWRR3PgBRqJBnfBtRJm2nSch8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com; spf=fail smtp.mailfrom=broadcom.com; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b=Hv0Efmlo; arc=none smtp.client-ip=209.85.160.228 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=broadcom.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="Hv0Efmlo" Received: by mail-qt1-f228.google.com with SMTP id d75a77b69052e-506a747448dso5388081cf.0 for ; Wed, 18 Mar 2026 22:52:48 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1773899567; x=1774504367; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=83WaAUqVbcTeAKRqYyPrzzE/KyYoTYZTFZXmMYL7wNs=; b=fvK33unwD/8tYGF0R9Tl7YAAbwY95u0AHsxVnkp9qzIaflkj8U2SfbHlp30+NtyI6B cI/MQ6esEhblcl0rKp/ybd6QW1N2pv69Q3IOqplXxk1HKTkhLbgAom3IpGqtqU9DtDNv kE5kAaqaCDHzYO+Ms9wwe4DMbN2CF2QrvVAiCGTpy/W/s4PEjXhzCRlNOvWkwATWZAix QaK1KWq+FVKjSJWvyhtz9vWSLUOggWyEsWujftpELrGQYY/49I6zsCqPwY5BxEK2EMc+ CitD4xeZzCcaHxt1l6YU7vfE4xBh/NomvmloPZ/5T19HFhggtCJInu6vPJ+5BIUL7Iuk qdsA== X-Forwarded-Encrypted: i=1; AJvYcCV95GBHrftcBVk7GyY1Pvi0N4EWhN8trID81u8Dwctu/JNHseAgdxb9LnRz8iI3GEDa9YygBw7i9GWGRv4=@vger.kernel.org X-Gm-Message-State: AOJu0YzuXQcbDyuR8T5xTGNONpmP+HgAKdlbbQm/KzeY/JcdR/O9x/lt gJDlNy7cxq/30KIVQJpFnASfQFJtilmcXi0o1E11Nbe/5QKK9+anGSjFiuURhbLEoEK43Y18o7x ZxhQtfkBeSi8LNaqblM19ZDA1A9y2EaKf9fF8EHB4rFTFKJL7BEU9obhwftK5lZbZ1qVdgk3cCZ SyZgvSoKXG2pbMootysPSp2pSOi9EdAmyiNoik1Wb/4ikr6U4+qBY5Wnjg573WMRxNy9EmS8I9N qKgMTnE2ee54No6Ow== X-Gm-Gg: ATEYQzzQXlxtiHqzoV1fYZ9YCuwbWL8g9NXX6e6Oe/WhJToEMU7CR3biYI0lP/kfvq3 hVl/J1gzsSDr4VX8u3oxWhwn1yGC6ooHrPj7aepAz2ESi3dWf3Luorz5KW/t3mACytBCgjYG+D9 RQj05cbpX21t69insnFkMRsJWtVk7sB2Tmr4M2tCjdbEvxSTPrBF1uZms2DyxUWa9y+PdAZFSsH k3gofQxloixUNkTXAXVSSxXmp8GnB6tC2ZETA1yeBnSsl/YMZRdquTbdKOKeiiSe0gf8t50eEL9 tvt6/tC0PlbNjN3ZQ9xhNHu86YMIkD7TJ/W5YTXYik8RHzEm5DPcj5q2LH7JLowqrrxYv+Rye2r twjH175QyLat9CK1GDBDS9+JF0NPLOfvQqTg3ahPsYl5yW3MzIomT1c2wgEqYWVBcjMe/3IwVqn enuAFgrB891oKKYgY//VhN/234FQHp/TbyBdi3izP5kxtMGH5oTsZ3RyKFFg== X-Received: by 2002:ac8:5d8c:0:b0:509:13a9:552f with SMTP id d75a77b69052e-50b1477e2f7mr73850051cf.18.1773899566914; Wed, 18 Mar 2026 22:52:46 -0700 (PDT) Received: from smtp-us-east1-p01-i01-si01.dlp.protect.broadcom.com (address-144-49-247-117.dlp.protect.broadcom.com. [144.49.247.117]) by smtp-relay.gmail.com with ESMTPS id d75a77b69052e-50b155d36absm5018131cf.0.2026.03.18.22.52.46 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 18 Mar 2026 22:52:46 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-yx1-f71.google.com with SMTP id 956f58d0204a3-64cac777207so1862534d50.0 for ; Wed, 18 Mar 2026 22:52:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1773899566; x=1774504366; 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; bh=83WaAUqVbcTeAKRqYyPrzzE/KyYoTYZTFZXmMYL7wNs=; b=Hv0EfmloZW2hnRO3tam5EJL0E3Ha3N2Oakbe/5/A4zEeKkppEgV1UE0mYwvESP/rsw sLfctCpTcKklZhodWSL2OikthzoRR6E3Dfocff+6XWQpdnaVy74ENPT2xya1SnsN4EIV UB/4wcmj9+EeM2DHMR29hlI+4ciNiBPI0k6js= X-Forwarded-Encrypted: i=1; AJvYcCV73sZ/U6f7nbvXlqzBdOnZ07B3rY1dWRKhP9hVfcp4plgX25+zyW7za2DT99Ef2wdW04ZJyno4tu8oThc=@vger.kernel.org X-Received: by 2002:a05:690e:1209:b0:64e:9f7f:1c1b with SMTP id 956f58d0204a3-64e9f7f2000mr1303270d50.19.1773899566136; Wed, 18 Mar 2026 22:52:46 -0700 (PDT) X-Received: by 2002:a05:690e:1209:b0:64e:9f7f:1c1b with SMTP id 956f58d0204a3-64e9f7f2000mr1303256d50.19.1773899565687; Wed, 18 Mar 2026 22:52:45 -0700 (PDT) Received: from localhost.localdomain ([192.19.203.250]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-64e91a1cd32sm2918980d50.2.2026.03.18.22.52.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Mar 2026 22:52:45 -0700 (PDT) From: Vikas Gupta To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, michael.chan@broadcom.com, pavan.chebbi@broadcom.com, vsrama-krishna.nemani@broadcom.com, rajashekar.hudumula@broadcom.com, ajit.khaparde@broadcom.com, Bhargava Marreddy , Vikas Gupta Subject: [PATCH net-next v8 05/10] bng_en: add support for link async events Date: Thu, 19 Mar 2026 11:21:19 +0530 Message-ID: <20260319055124.1350670-6-vikas.gupta@broadcom.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20260319055124.1350670-1-vikas.gupta@broadcom.com> References: <20260319055124.1350670-1-vikas.gupta@broadcom.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e Content-Type: text/plain; charset="utf-8" From: Bhargava Marreddy Register for firmware asynchronous events, including link-status, link-speed, and PHY configuration changes. Upon event reception, re-query the PHY and update ethtool settings accordingly. Signed-off-by: Bhargava Marreddy Reviewed-by: Vikas Gupta --- .../ethernet/broadcom/bnge/bnge_hwrm_lib.c | 17 ++++++- .../net/ethernet/broadcom/bnge/bnge_link.c | 47 +++++++++++++++++++ .../net/ethernet/broadcom/bnge/bnge_link.h | 4 ++ .../net/ethernet/broadcom/bnge/bnge_netdev.c | 17 +++++++ .../net/ethernet/broadcom/bnge/bnge_txrx.c | 35 ++++++++++++-- 5 files changed, 115 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.c b/drivers/n= et/ethernet/broadcom/bnge/bnge_hwrm_lib.c index 1cc62883d3c7..07ba66e3d3de 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.c @@ -15,6 +15,13 @@ #include "bnge_rmem.h" #include "bnge_resc.h" =20 +static const u16 bnge_async_events_arr[] =3D { + ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE, + ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE, + ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE, + ASYNC_EVENT_CMPL_EVENT_ID_PORT_PHY_CFG_CHANGE, +}; + int bnge_hwrm_ver_get(struct bnge_dev *bd) { u32 dev_caps_cfg, hwrm_ver, hwrm_spec_code; @@ -166,10 +173,12 @@ int bnge_hwrm_fw_set_time(struct bnge_dev *bd) =20 int bnge_hwrm_func_drv_rgtr(struct bnge_dev *bd) { + DECLARE_BITMAP(async_events_bmap, 256); + u32 *events =3D (u32 *)async_events_bmap; struct hwrm_func_drv_rgtr_output *resp; struct hwrm_func_drv_rgtr_input *req; u32 flags; - int rc; + int rc, i; =20 rc =3D bnge_hwrm_req_init(bd, req, HWRM_FUNC_DRV_RGTR); if (rc) @@ -190,6 +199,12 @@ int bnge_hwrm_func_drv_rgtr(struct bnge_dev *bd) req->ver_min =3D cpu_to_le16(DRV_VER_MIN); req->ver_upd =3D cpu_to_le16(DRV_VER_UPD); =20 + memset(async_events_bmap, 0, sizeof(async_events_bmap)); + for (i =3D 0; i < ARRAY_SIZE(bnge_async_events_arr); i++) + __set_bit(bnge_async_events_arr[i], async_events_bmap); + for (i =3D 0; i < ARRAY_SIZE(req->async_event_fwd); i++) + req->async_event_fwd[i] |=3D cpu_to_le32(events[i]); + resp =3D bnge_hwrm_req_hold(bd, req); rc =3D bnge_hwrm_req_send(bd, req); if (!rc) { diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_link.c b/drivers/net/e= thernet/broadcom/bnge/bnge_link.c index 03beb5593069..99fc8fda1623 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_link.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_link.c @@ -94,6 +94,21 @@ static void bnge_set_auto_speed(struct bnge_net *bn) elink_info->advertising_pam4 =3D link_info->auto_pam4_link_speeds; } =20 +static u16 bnge_get_force_speed(struct bnge_net *bn) +{ + struct bnge_ethtool_link_info *elink_info =3D &bn->eth_link_info; + struct bnge_link_info *link_info; + struct bnge_dev *bd =3D bn->bd; + + link_info =3D &bd->link_info; + + if (bd->phy_flags & BNGE_PHY_FL_SPEEDS2) + return link_info->force_link_speed2; + if (elink_info->req_signal_mode =3D=3D BNGE_SIG_MODE_PAM4) + return link_info->force_pam4_link_speed; + return link_info->force_link_speed; +} + static void bnge_set_force_speed(struct bnge_net *bn) { struct bnge_ethtool_link_info *elink_info =3D &bn->eth_link_info; @@ -1254,3 +1269,35 @@ int bnge_set_link_ksettings(struct net_device *dev, set_setting_exit: return rc; } + +void bnge_link_async_event_process(struct bnge_net *bn, + u16 event_id, u32 evt_data) +{ + switch (event_id) { + case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE: { + struct bnge_ethtool_link_info *elink_info =3D &bn->eth_link_info; + + /* print unsupported speed warning in forced speed mode only */ + if (!(elink_info->autoneg & BNGE_AUTONEG_SPEED) && + (evt_data & BNGE_SPEED_CFG_CHANGE_SP_NOT_SUPP)) { + u16 fw_speed =3D bnge_get_force_speed(bn); + u32 speed =3D bnge_fw_to_ethtool_speed(fw_speed); + + if (speed !=3D SPEED_UNKNOWN) + netdev_warn(bn->netdev, "Link speed %d no longer supported\n", + speed); + } + set_bit(BNGE_LINK_SPEED_CHNG_SP_EVENT, &bn->sp_event); + fallthrough; + } + case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE: + case ASYNC_EVENT_CMPL_EVENT_ID_PORT_PHY_CFG_CHANGE: + set_bit(BNGE_LINK_CFG_CHANGE_SP_EVENT, &bn->sp_event); + fallthrough; + case ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE: + set_bit(BNGE_LINK_CHNG_SP_EVENT, &bn->sp_event); + break; + default: + break; + } +} diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_link.h b/drivers/net/e= thernet/broadcom/bnge/bnge_link.h index 70d0901b9a32..cadc26cfbcf5 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_link.h +++ b/drivers/net/ethernet/broadcom/bnge/bnge_link.h @@ -197,4 +197,8 @@ int bnge_set_link_ksettings(struct net_device *dev, int bnge_get_link_ksettings(struct net_device *dev, struct ethtool_link_ksettings *lk_ksettings); u32 bnge_get_link(struct net_device *dev); +#define BNGE_SPEED_CFG_CHANGE_SP_NOT_SUPP BIT(17) + +void bnge_link_async_event_process(struct bnge_net *bn, + u16 event_id, u32 evt_data); #endif /* _BNGE_LINK_H_ */ diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c b/drivers/net= /ethernet/broadcom/bnge/bnge_netdev.c index 29c703f3c9a1..af69d4d8bafb 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c @@ -156,6 +156,23 @@ static void bnge_sp_task(struct work_struct *work) } } =20 + if (test_and_clear_bit(BNGE_LINK_CHNG_SP_EVENT, &bn->sp_event)) { + int rc; + + if (test_and_clear_bit(BNGE_LINK_SPEED_CHNG_SP_EVENT, + &bn->sp_event)) + bnge_hwrm_phy_qcaps(bd); + + rc =3D bnge_update_link(bn, true); + if (rc) + netdev_err(bn->netdev, "SP task cannot update link (rc: %d)\n", + rc); + + if (test_and_clear_bit(BNGE_LINK_CFG_CHANGE_SP_EVENT, + &bn->sp_event)) + bnge_init_ethtool_link_settings(bn); + } + netdev_unlock(bn->netdev); } =20 diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_txrx.c b/drivers/net/e= thernet/broadcom/bnge/bnge_txrx.c index a2616f037557..88f9cf1db308 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_txrx.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_txrx.c @@ -1128,6 +1128,29 @@ static void __bnge_poll_work_done(struct bnge_net *b= n, struct bnge_napi *bnapi, } } =20 +static void bnge_async_event_process(struct bnge_net *bn, + struct hwrm_async_event_cmpl *cmpl) +{ + u16 event_id =3D le16_to_cpu(cmpl->event_id); + u32 data1 =3D le32_to_cpu(cmpl->event_data1); + u32 data2 =3D le32_to_cpu(cmpl->event_data2); + + netdev_dbg(bn->netdev, "hwrm event 0x%x {0x%x, 0x%x}\n", + event_id, data1, data2); + + switch (event_id) { + case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE: + case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE: + case ASYNC_EVENT_CMPL_EVENT_ID_PORT_PHY_CFG_CHANGE: + case ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE: + bnge_link_async_event_process(bn, event_id, data1); + break; + default: + return; + } + __bnge_queue_sp_work(bn); +} + static void bnge_hwrm_update_token(struct bnge_dev *bd, u16 seq_id, enum bnge_hwrm_wait_state state) @@ -1146,7 +1169,7 @@ bnge_hwrm_update_token(struct bnge_dev *bd, u16 seq_i= d, dev_err(bd->dev, "Invalid hwrm seq id %d\n", seq_id); } =20 -static int bnge_hwrm_handler(struct bnge_dev *bd, struct tx_cmp *txcmp) +static int bnge_hwrm_handler(struct bnge_net *bn, struct tx_cmp *txcmp) { struct hwrm_cmpl *h_cmpl =3D (struct hwrm_cmpl *)txcmp; u16 cmpl_type =3D TX_CMP_TYPE(txcmp), seq_id; @@ -1154,10 +1177,14 @@ static int bnge_hwrm_handler(struct bnge_dev *bd, s= truct tx_cmp *txcmp) switch (cmpl_type) { case CMPL_BASE_TYPE_HWRM_DONE: seq_id =3D le16_to_cpu(h_cmpl->sequence_id); - bnge_hwrm_update_token(bd, seq_id, BNGE_HWRM_COMPLETE); + bnge_hwrm_update_token(bn->bd, seq_id, BNGE_HWRM_COMPLETE); break; =20 case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT: + bnge_async_event_process(bn, + (struct hwrm_async_event_cmpl *)txcmp); + break; + default: break; } @@ -1235,7 +1262,7 @@ static int __bnge_poll_work(struct bnge_net *bn, stru= ct bnge_cp_ring_info *cpr, } else if (unlikely(cmp_type =3D=3D CMPL_BASE_TYPE_HWRM_DONE || cmp_type =3D=3D CMPL_BASE_TYPE_HWRM_FWD_REQ || cmp_type =3D=3D CMPL_BA_TY_HWRM_ASY_EVT)) { - bnge_hwrm_handler(bn->bd, txcmp); + bnge_hwrm_handler(bn, txcmp); } raw_cons =3D NEXT_RAW_CMP(raw_cons); =20 @@ -1355,7 +1382,7 @@ int bnge_napi_poll(struct napi_struct *napi, int budg= et) budget - work_done); nqr->has_more_work |=3D cpr->has_more_work; } else { - bnge_hwrm_handler(bn->bd, (struct tx_cmp *)nqcmp); + bnge_hwrm_handler(bn, (struct tx_cmp *)nqcmp); } raw_cons =3D NEXT_RAW_CMP(raw_cons); } --=20 2.47.1 From nobody Mon Apr 6 16:23:50 2026 Received: from mail-yw1-f225.google.com (mail-yw1-f225.google.com [209.85.128.225]) (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 36AA73176E4 for ; Thu, 19 Mar 2026 05:52:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.225 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899576; cv=none; b=ImOkrxd4YyhHd29wD5P3Igt0FbnccGQ4e7yl+cfIP0dFjr4UPO3CzigyUGn2RGUjiWDuuOY2tzhD6iueYzCfqtdRttkkTOj+jn8ai+YgVza7iXm9N56vLc5nY7MxDi8olFewyMtm6DuXeh5vly/RwAMImmK8ZgGlaHFcMaoal7A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899576; c=relaxed/simple; bh=+Z4+hNeskPHLJq62/GqL2cKmCOLQV3mmTo4gx+qLSwM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=OM4fpN33a9vmiMYK7+Je+lbreigNVZtQGfWNYu9h9HAZSIztAr0f2eGV1bU4xyNaqXWh2WoUI7iBYfQZtj8FAzj2UeexcfC6TS07ADdrtMmoK9t3VKTblIgs3jGIhtZMqPKOx6Ka369bpvTffeL4FBGaa3TdBGEAhlQ0nwa1Ce8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com; spf=fail smtp.mailfrom=broadcom.com; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b=BVaVSQN5; arc=none smtp.client-ip=209.85.128.225 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=broadcom.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="BVaVSQN5" Received: by mail-yw1-f225.google.com with SMTP id 00721157ae682-79801df3e42so6732927b3.0 for ; Wed, 18 Mar 2026 22:52:53 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1773899573; x=1774504373; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=gz3cigKIKwnEekHJyDzxNf418OUgUdaD2ltzJHw0Vmc=; b=GHfxQbzhBg2MkcrcumNkV4BgrBm3Ad2aIN2yn6fg/8aXGu5WGq/sAzI0ovCOQeT7bw iFL5be3SNSL83BbOSuE3rgt8QfHoBWW5bk/rvsjt2e9zZXef9h6/ya1O2wlmZ/vYoden XWRyyuIlr7HAwe1cniHLn/Tdpl/dKtu88FIF3qr69mg7+U8PXPuYOU7NuKNTOI8lbcTl Xr8VwjmsYJWw3h0FnB5bzwD5ySbqeqdCpT+bZ/5d7NCubnrvFoxn58HUacTuBsi38BpM a0HeFgm3VUqUhv72eH7/zQ5OcJzBkUNyhAIVUG2P5cChXESkQVapYl6hWP0JWU3J82Fq pUGw== X-Forwarded-Encrypted: i=1; AJvYcCX2pLgrvGHfNQajUsoCBrGwMWdRvw2dSS4BjKhPZm8pHNsALORnCWPFQQmFxmqXPj1HvkthfMlWSxfZfbM=@vger.kernel.org X-Gm-Message-State: AOJu0YwTqweSj00DUgRCfO5AQ/VTvsbdLLkA9+Z9FzbqEF75Yy1+aJ9X JAWfxj+Ua+Yf4u7DnGcWMEiu0yNf3ciiDRmM+J+ZDLqGV1fWmXbRmBo6aSmTLglKPHASTSe1Rfc p6eFCY1BRHwoFwv/wCdV4ReEYFOcP5cbpHnLgCal93IHjO0tUv/b2ize1LMr1ssPR2iaBWMm8Gs kyAIEjEg55qWo5x/7ae3eaZ3YpUUhy/OE+FBEpsL3QQOSoUfpu28nuhX5uzf0dCHGOhCB0z4oxW 7Ui3Vjs/qZCGXKfBQ== X-Gm-Gg: ATEYQzxk4ACaWXLYZ0oS4Ef2W0MCjqzR2pouFoDoXs1tx+MTVKxfgzulrPD18WRmv6v wMZBhalHRjvXbneShvN0loSQ//5KiqI1uiDiL8Z2qIlAZqTf7/l5SFzlOvA0DjfzimUdK3KCiRe 3SEZiP7BGMOI2/NhWXk8DWHR5vfdaz1QlHspja6vq3UVXNVDLsLZoxfy871yLTq2S896YosEu/k XCSnN3dHYaoPRGqGbRnRcoM/E54rH0YPCuqCY3cunWyem8Mp8vFVVQpQ7xPw6i2xJY26BdkzbDP b92GvhiiuTl/WFi3fb7jF0NpSXtR/wpu6RinoOhZhizNKkDCrpfEYxfC1CZ2j6oQ+hT91/Vdxck o9k5mgFyVCEc+w7DJPpSfYRJW/07p55+uTj5ZpaSMyUWily7kbCzZ6/AoGmd++hq4JwmGMrSK/Y ulQKwjI1WWpMjQxNVQ1X2LUabgSsh7FOZjdMOd5fKtoERv/Eja9wCdSWw= X-Received: by 2002:a05:690c:670c:b0:79a:3968:f77d with SMTP id 00721157ae682-79a81b9a537mr24225377b3.18.1773899573146; Wed, 18 Mar 2026 22:52:53 -0700 (PDT) Received: from smtp-us-east1-p01-i01-si01.dlp.protect.broadcom.com (address-144-49-247-22.dlp.protect.broadcom.com. [144.49.247.22]) by smtp-relay.gmail.com with ESMTPS id 00721157ae682-79a7159d815sm4360067b3.20.2026.03.18.22.52.52 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 18 Mar 2026 22:52:53 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-yx1-f72.google.com with SMTP id 956f58d0204a3-64cad8f8d03so1763780d50.1 for ; Wed, 18 Mar 2026 22:52:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1773899572; x=1774504372; 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; bh=gz3cigKIKwnEekHJyDzxNf418OUgUdaD2ltzJHw0Vmc=; b=BVaVSQN53T+VVHzJ2LQUzVc2lxzTKee6r3i6qtNmzpphgQrNc8oeO5LFs1ZU4Tiajd vphMdPY+LGgAQqX8Psmtz5go9Dqx4qR6UjoNu32Gs6NzHvUpyksrzwMYXeZDaOn548cl Xv4HKdwt9JJwsO8AY/m21BrYC75W5lF66MiIs= X-Forwarded-Encrypted: i=1; AJvYcCXGP2foUzh1mrEa2tMTKYwIAIqqPyEfs5aMDKR1D9+F7gatp1u+PuyAsfL3GgQ3rmVFjAiGa7WKEdPMp5w=@vger.kernel.org X-Received: by 2002:a05:690e:1306:b0:64a:effb:1331 with SMTP id 956f58d0204a3-64e9ce76c87mr1812256d50.34.1773899572187; Wed, 18 Mar 2026 22:52:52 -0700 (PDT) X-Received: by 2002:a05:690e:1306:b0:64a:effb:1331 with SMTP id 956f58d0204a3-64e9ce76c87mr1812236d50.34.1773899571571; Wed, 18 Mar 2026 22:52:51 -0700 (PDT) Received: from localhost.localdomain ([192.19.203.250]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-64e91a1cd32sm2918980d50.2.2026.03.18.22.52.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Mar 2026 22:52:51 -0700 (PDT) From: Vikas Gupta To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, michael.chan@broadcom.com, pavan.chebbi@broadcom.com, vsrama-krishna.nemani@broadcom.com, rajashekar.hudumula@broadcom.com, ajit.khaparde@broadcom.com, Bhargava Marreddy , Vikas Gupta Subject: [PATCH net-next v8 06/10] bng_en: add HW stats infra and structured ethtool ops Date: Thu, 19 Mar 2026 11:21:20 +0530 Message-ID: <20260319055124.1350670-7-vikas.gupta@broadcom.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20260319055124.1350670-1-vikas.gupta@broadcom.com> References: <20260319055124.1350670-1-vikas.gupta@broadcom.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e Content-Type: text/plain; charset="utf-8" From: Bhargava Marreddy Implement the hardware-level statistics foundation and modern structured ethtool operations. 1. Infrastructure: Add HWRM firmware wrappers (FUNC_QSTATS_EXT, PORT_QSTATS_EXT, and PORT_QSTATS) to query ring and port counters. 2. Structured ops: Implement .get_eth_phy_stats, .get_eth_mac_stats, .get_eth_ctrl_stats, .get_pause_stats, and .get_rmon_stats. Stats are initially reported as 0; accumulation logic is added in a subsequent patch. Signed-off-by: Bhargava Marreddy Reviewed-by: Vikas Gupta --- .../net/ethernet/broadcom/bnge/bnge_ethtool.c | 160 +++++++++++++++ .../ethernet/broadcom/bnge/bnge_hwrm_lib.c | 142 +++++++++++++ .../ethernet/broadcom/bnge/bnge_hwrm_lib.h | 3 + .../net/ethernet/broadcom/bnge/bnge_netdev.c | 192 +++++++++++++++++- .../net/ethernet/broadcom/bnge/bnge_netdev.h | 60 +++++- 5 files changed, 546 insertions(+), 11 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_ethtool.c b/drivers/ne= t/ethernet/broadcom/bnge/bnge_ethtool.c index 01382ad784e3..2ae13f18e2d7 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_ethtool.c @@ -42,6 +42,161 @@ static void bnge_get_drvinfo(struct net_device *dev, strscpy(info->bus_info, pci_name(bd->pdev), sizeof(info->bus_info)); } =20 +static void bnge_get_eth_phy_stats(struct net_device *dev, + struct ethtool_eth_phy_stats *phy_stats) +{ + struct bnge_net *bn =3D netdev_priv(dev); + u64 *rx; + + if (!(bn->flags & BNGE_FLAG_PORT_STATS_EXT)) + return; + + rx =3D bn->rx_port_stats_ext.sw_stats; + phy_stats->SymbolErrorDuringCarrier =3D + *(rx + BNGE_RX_STATS_EXT_OFFSET(rx_pcs_symbol_err)); +} + +static void bnge_get_eth_mac_stats(struct net_device *dev, + struct ethtool_eth_mac_stats *mac_stats) +{ + struct bnge_net *bn =3D netdev_priv(dev); + u64 *rx, *tx; + + if (!(bn->flags & BNGE_FLAG_PORT_STATS)) + return; + + rx =3D bn->port_stats.sw_stats; + tx =3D bn->port_stats.sw_stats + BNGE_TX_PORT_STATS_BYTE_OFFSET / 8; + + mac_stats->FramesReceivedOK =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_good_frames); + mac_stats->FramesTransmittedOK =3D + BNGE_GET_TX_PORT_STATS64(tx, tx_good_frames); + mac_stats->FrameCheckSequenceErrors =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_fcs_err_frames); + mac_stats->AlignmentErrors =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_align_err_frames); + mac_stats->OutOfRangeLengthField =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_oor_len_frames); + mac_stats->OctetsReceivedOK =3D BNGE_GET_RX_PORT_STATS64(rx, rx_bytes); + mac_stats->OctetsTransmittedOK =3D BNGE_GET_TX_PORT_STATS64(tx, tx_bytes); + mac_stats->MulticastFramesReceivedOK =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_mcast_frames); + mac_stats->BroadcastFramesReceivedOK =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_bcast_frames); + mac_stats->MulticastFramesXmittedOK =3D + BNGE_GET_TX_PORT_STATS64(tx, tx_mcast_frames); + mac_stats->BroadcastFramesXmittedOK =3D + BNGE_GET_TX_PORT_STATS64(tx, tx_bcast_frames); + mac_stats->FrameTooLongErrors =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_ovrsz_frames); +} + +static void bnge_get_eth_ctrl_stats(struct net_device *dev, + struct ethtool_eth_ctrl_stats *ctrl_stats) +{ + struct bnge_net *bn =3D netdev_priv(dev); + u64 *rx; + + if (!(bn->flags & BNGE_FLAG_PORT_STATS)) + return; + + rx =3D bn->port_stats.sw_stats; + ctrl_stats->MACControlFramesReceived =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_ctrl_frames); +} + +static void bnge_get_pause_stats(struct net_device *dev, + struct ethtool_pause_stats *pause_stats) +{ + struct bnge_net *bn =3D netdev_priv(dev); + u64 *rx, *tx; + + if (!(bn->flags & BNGE_FLAG_PORT_STATS)) + return; + + rx =3D bn->port_stats.sw_stats; + tx =3D bn->port_stats.sw_stats + BNGE_TX_PORT_STATS_BYTE_OFFSET / 8; + + pause_stats->rx_pause_frames =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_pause_frames); + pause_stats->tx_pause_frames =3D + BNGE_GET_TX_PORT_STATS64(tx, tx_pause_frames); +} + +static const struct ethtool_rmon_hist_range bnge_rmon_ranges[] =3D { + { 0, 64 }, + { 65, 127 }, + { 128, 255 }, + { 256, 511 }, + { 512, 1023 }, + { 1024, 1518 }, + { 1519, 2047 }, + { 2048, 4095 }, + { 4096, 9216 }, + { 9217, 16383 }, + {} +}; + +static void bnge_get_rmon_stats(struct net_device *dev, + struct ethtool_rmon_stats *rmon_stats, + const struct ethtool_rmon_hist_range **ranges) +{ + struct bnge_net *bn =3D netdev_priv(dev); + u64 *rx, *tx; + + if (!(bn->flags & BNGE_FLAG_PORT_STATS)) + return; + + rx =3D bn->port_stats.sw_stats; + tx =3D bn->port_stats.sw_stats + BNGE_TX_PORT_STATS_BYTE_OFFSET / 8; + + rmon_stats->jabbers =3D BNGE_GET_RX_PORT_STATS64(rx, rx_jbr_frames); + rmon_stats->oversize_pkts =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_ovrsz_frames); + rmon_stats->undersize_pkts =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_undrsz_frames); + + rmon_stats->hist[0] =3D BNGE_GET_RX_PORT_STATS64(rx, rx_64b_frames); + rmon_stats->hist[1] =3D BNGE_GET_RX_PORT_STATS64(rx, rx_65b_127b_frames); + rmon_stats->hist[2] =3D BNGE_GET_RX_PORT_STATS64(rx, rx_128b_255b_frames); + rmon_stats->hist[3] =3D BNGE_GET_RX_PORT_STATS64(rx, rx_256b_511b_frames); + rmon_stats->hist[4] =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_512b_1023b_frames); + rmon_stats->hist[5] =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_1024b_1518b_frames); + rmon_stats->hist[6] =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_1519b_2047b_frames); + rmon_stats->hist[7] =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_2048b_4095b_frames); + rmon_stats->hist[8] =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_4096b_9216b_frames); + rmon_stats->hist[9] =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_9217b_16383b_frames); + + rmon_stats->hist_tx[0] =3D BNGE_GET_TX_PORT_STATS64(tx, tx_64b_frames); + rmon_stats->hist_tx[1] =3D + BNGE_GET_TX_PORT_STATS64(tx, tx_65b_127b_frames); + rmon_stats->hist_tx[2] =3D + BNGE_GET_TX_PORT_STATS64(tx, tx_128b_255b_frames); + rmon_stats->hist_tx[3] =3D + BNGE_GET_TX_PORT_STATS64(tx, tx_256b_511b_frames); + rmon_stats->hist_tx[4] =3D + BNGE_GET_TX_PORT_STATS64(tx, tx_512b_1023b_frames); + rmon_stats->hist_tx[5] =3D + BNGE_GET_TX_PORT_STATS64(tx, tx_1024b_1518b_frames); + rmon_stats->hist_tx[6] =3D + BNGE_GET_TX_PORT_STATS64(tx, tx_1519b_2047b_frames); + rmon_stats->hist_tx[7] =3D + BNGE_GET_TX_PORT_STATS64(tx, tx_2048b_4095b_frames); + rmon_stats->hist_tx[8] =3D + BNGE_GET_TX_PORT_STATS64(tx, tx_4096b_9216b_frames); + rmon_stats->hist_tx[9] =3D + BNGE_GET_TX_PORT_STATS64(tx, tx_9217b_16383b_frames); + + *ranges =3D bnge_rmon_ranges; +} + static void bnge_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause) { @@ -107,6 +262,11 @@ static const struct ethtool_ops bnge_ethtool_ops =3D { .nway_reset =3D bnge_nway_reset, .get_pauseparam =3D bnge_get_pauseparam, .set_pauseparam =3D bnge_set_pauseparam, + .get_eth_phy_stats =3D bnge_get_eth_phy_stats, + .get_eth_mac_stats =3D bnge_get_eth_mac_stats, + .get_eth_ctrl_stats =3D bnge_get_eth_ctrl_stats, + .get_pause_stats =3D bnge_get_pause_stats, + .get_rmon_stats =3D bnge_get_rmon_stats, }; =20 void bnge_set_ethtool_ops(struct net_device *dev) diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.c b/drivers/n= et/ethernet/broadcom/bnge/bnge_hwrm_lib.c index 07ba66e3d3de..af681b17f280 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.c @@ -14,6 +14,7 @@ #include "bnge_hwrm_lib.h" #include "bnge_rmem.h" #include "bnge_resc.h" +#include "bnge_netdev.h" =20 static const u16 bnge_async_events_arr[] =3D { ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE, @@ -610,6 +611,8 @@ int bnge_hwrm_func_qcaps(struct bnge_dev *bd) bd->flags |=3D BNGE_EN_ROCE_V1; if (flags & FUNC_QCAPS_RESP_FLAGS_ROCE_V2_SUPPORTED) bd->flags |=3D BNGE_EN_ROCE_V2; + if (flags & FUNC_QCAPS_RESP_FLAGS_EXT_STATS_SUPPORTED) + bd->fw_cap |=3D BNGE_FW_CAP_EXT_STATS_SUPPORTED; =20 pf->fw_fid =3D le16_to_cpu(resp->fid); pf->port_id =3D le16_to_cpu(resp->port_id); @@ -1490,3 +1493,142 @@ int bnge_hwrm_vnic_set_tpa(struct bnge_dev *bd, str= uct bnge_vnic_info *vnic, =20 return bnge_hwrm_req_send(bd, req); } + +int bnge_hwrm_func_qstat_ext(struct bnge_dev *bd, struct bnge_stats_mem *s= tats) +{ + struct hwrm_func_qstats_ext_output *resp; + struct hwrm_func_qstats_ext_input *req; + __le64 *hw_masks; + int rc; + + rc =3D bnge_hwrm_req_init(bd, req, HWRM_FUNC_QSTATS_EXT); + if (rc) + return rc; + + req->fid =3D cpu_to_le16(0xffff); + req->flags =3D FUNC_QSTATS_EXT_REQ_FLAGS_COUNTER_MASK; + + resp =3D bnge_hwrm_req_hold(bd, req); + rc =3D bnge_hwrm_req_send(bd, req); + if (!rc) { + hw_masks =3D &resp->rx_ucast_pkts; + bnge_copy_hw_masks(stats->hw_masks, hw_masks, stats->len / 8); + } + bnge_hwrm_req_drop(bd, req); + return rc; +} + +int bnge_hwrm_port_qstats_ext(struct bnge_dev *bd, u8 flags) +{ + struct hwrm_queue_pri2cos_qcfg_output *resp_qc; + struct bnge_net *bn =3D netdev_priv(bd->netdev); + struct hwrm_queue_pri2cos_qcfg_input *req_qc; + struct hwrm_port_qstats_ext_output *resp_qs; + struct hwrm_port_qstats_ext_input *req_qs; + struct bnge_pf_info *pf =3D &bd->pf; + u32 tx_stat_size; + int rc; + + if (!(bn->flags & BNGE_FLAG_PORT_STATS_EXT)) + return 0; + + if (flags && !(bd->fw_cap & BNGE_FW_CAP_EXT_HW_STATS_SUPPORTED)) + return -EOPNOTSUPP; + + rc =3D bnge_hwrm_req_init(bd, req_qs, HWRM_PORT_QSTATS_EXT); + if (rc) + return rc; + + req_qs->flags =3D flags; + req_qs->port_id =3D cpu_to_le16(pf->port_id); + req_qs->rx_stat_size =3D cpu_to_le16(sizeof(struct rx_port_stats_ext)); + req_qs->rx_stat_host_addr =3D + cpu_to_le64(bn->rx_port_stats_ext.hw_stats_map); + tx_stat_size =3D bn->tx_port_stats_ext.hw_stats ? + sizeof(struct tx_port_stats_ext) : 0; + req_qs->tx_stat_size =3D cpu_to_le16(tx_stat_size); + req_qs->tx_stat_host_addr =3D + cpu_to_le64(bn->tx_port_stats_ext.hw_stats_map); + resp_qs =3D bnge_hwrm_req_hold(bd, req_qs); + rc =3D bnge_hwrm_req_send(bd, req_qs); + if (!rc) { + bn->fw_rx_stats_ext_size =3D + le16_to_cpu(resp_qs->rx_stat_size) / 8; + bn->fw_tx_stats_ext_size =3D tx_stat_size ? + le16_to_cpu(resp_qs->tx_stat_size) / 8 : 0; + } else { + bn->fw_rx_stats_ext_size =3D 0; + bn->fw_tx_stats_ext_size =3D 0; + } + bnge_hwrm_req_drop(bd, req_qs); + + if (flags) + return rc; + + if (bn->fw_tx_stats_ext_size <=3D + offsetof(struct tx_port_stats_ext, pfc_pri0_tx_duration_us) / 8) { + bn->pri2cos_valid =3D false; + return rc; + } + + rc =3D bnge_hwrm_req_init(bd, req_qc, HWRM_QUEUE_PRI2COS_QCFG); + if (rc) + return rc; + + req_qc->flags =3D cpu_to_le32(QUEUE_PRI2COS_QCFG_REQ_FLAGS_IVLAN); + + resp_qc =3D bnge_hwrm_req_hold(bd, req_qc); + rc =3D bnge_hwrm_req_send(bd, req_qc); + if (!rc) { + u8 *pri2cos; + int i, j; + + pri2cos =3D &resp_qc->pri0_cos_queue_id; + for (i =3D 0; i < 8; i++) { + u8 queue_id =3D pri2cos[i]; + u8 queue_idx; + + /* Per port queue IDs start from 0, 10, 20, etc */ + queue_idx =3D queue_id % 10; + if (queue_idx >=3D BNGE_MAX_QUEUE) { + bn->pri2cos_valid =3D false; + rc =3D -EINVAL; + goto drop_req; + } + for (j =3D 0; j < bd->max_q; j++) { + if (bd->q_ids[j] =3D=3D queue_id) + bn->pri2cos_idx[i] =3D queue_idx; + } + } + bn->pri2cos_valid =3D true; + } +drop_req: + bnge_hwrm_req_drop(bd, req_qc); + return rc; +} + +int bnge_hwrm_port_qstats(struct bnge_dev *bd, u8 flags) +{ + struct bnge_net *bn =3D netdev_priv(bd->netdev); + struct hwrm_port_qstats_input *req; + struct bnge_pf_info *pf =3D &bd->pf; + int rc; + + if (!(bn->flags & BNGE_FLAG_PORT_STATS)) + return 0; + + if (flags && !(bd->fw_cap & BNGE_FW_CAP_EXT_HW_STATS_SUPPORTED)) + return -EOPNOTSUPP; + + rc =3D bnge_hwrm_req_init(bd, req, HWRM_PORT_QSTATS); + if (rc) + return rc; + + req->flags =3D flags; + req->port_id =3D cpu_to_le16(pf->port_id); + req->tx_stat_host_addr =3D cpu_to_le64(bn->port_stats.hw_stats_map + + BNGE_TX_PORT_STATS_BYTE_OFFSET); + req->rx_stat_host_addr =3D cpu_to_le64(bn->port_stats.hw_stats_map); + + return bnge_hwrm_req_send(bd, req); +} diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.h b/drivers/n= et/ethernet/broadcom/bnge/bnge_hwrm_lib.h index 86ca3ac2244b..3501de7a89b9 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.h +++ b/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.h @@ -62,4 +62,7 @@ int bnge_hwrm_phy_qcaps(struct bnge_dev *bd); int bnge_hwrm_set_link_setting(struct bnge_net *bn, bool set_pause); int bnge_hwrm_set_pause(struct bnge_net *bn); int bnge_hwrm_shutdown_link(struct bnge_dev *bd); +int bnge_hwrm_port_qstats(struct bnge_dev *bd, u8 flags); +int bnge_hwrm_port_qstats_ext(struct bnge_dev *bd, u8 flags); +int bnge_hwrm_func_qstat_ext(struct bnge_dev *bd, struct bnge_stats_mem *s= tats); #endif /* _BNGE_HWRM_LIB_H_ */ diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c b/drivers/net= /ethernet/broadcom/bnge/bnge_netdev.c index af69d4d8bafb..9f62b5f19a2e 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c @@ -39,6 +39,10 @@ static void bnge_free_stats_mem(struct bnge_net *bn, { struct bnge_dev *bd =3D bn->bd; =20 + kfree(stats->hw_masks); + stats->hw_masks =3D NULL; + kfree(stats->sw_stats); + stats->sw_stats =3D NULL; if (stats->hw_stats) { dma_free_coherent(bd->dev, stats->len, stats->hw_stats, stats->hw_stats_map); @@ -47,7 +51,7 @@ static void bnge_free_stats_mem(struct bnge_net *bn, } =20 static int bnge_alloc_stats_mem(struct bnge_net *bn, - struct bnge_stats_mem *stats) + struct bnge_stats_mem *stats, bool alloc_masks) { struct bnge_dev *bd =3D bn->bd; =20 @@ -56,7 +60,20 @@ static int bnge_alloc_stats_mem(struct bnge_net *bn, if (!stats->hw_stats) return -ENOMEM; =20 + stats->sw_stats =3D kzalloc(stats->len, GFP_KERNEL); + if (!stats->sw_stats) + goto stats_mem_err; + + if (alloc_masks) { + stats->hw_masks =3D kzalloc(stats->len, GFP_KERNEL); + if (!stats->hw_masks) + goto stats_mem_err; + } return 0; + +stats_mem_err: + bnge_free_stats_mem(bn, stats); + return -ENOMEM; } =20 static void bnge_free_ring_stats(struct bnge_net *bn) @@ -75,6 +92,107 @@ static void bnge_free_ring_stats(struct bnge_net *bn) } } =20 +static void bnge_fill_masks(u64 *mask_arr, u64 mask, int count) +{ + int i; + + for (i =3D 0; i < count; i++) + mask_arr[i] =3D mask; +} + +void bnge_copy_hw_masks(u64 *mask_arr, __le64 *hw_mask_arr, int count) +{ + int i; + + for (i =3D 0; i < count; i++) + mask_arr[i] =3D le64_to_cpu(hw_mask_arr[i]); +} + +static void bnge_init_stats(struct bnge_net *bn) +{ + struct bnge_napi *bnapi =3D bn->bnapi[0]; + struct bnge_nq_ring_info *nqr; + struct bnge_stats_mem *stats; + struct bnge_dev *bd =3D bn->bd; + __le64 *rx_stats, *tx_stats; + int rc, rx_count, tx_count; + u64 *rx_masks, *tx_masks; + u8 flags; + + nqr =3D &bnapi->nq_ring; + stats =3D &nqr->stats; + rc =3D bnge_hwrm_func_qstat_ext(bd, stats); + if (rc) { + u64 mask =3D (1ULL << 48) - 1; + + bnge_fill_masks(stats->hw_masks, mask, stats->len / 8); + } + + if (bn->flags & BNGE_FLAG_PORT_STATS) { + stats =3D &bn->port_stats; + rx_stats =3D stats->hw_stats; + rx_masks =3D stats->hw_masks; + rx_count =3D sizeof(struct rx_port_stats) / 8; + tx_stats =3D rx_stats + BNGE_TX_PORT_STATS_BYTE_OFFSET / 8; + tx_masks =3D rx_masks + BNGE_TX_PORT_STATS_BYTE_OFFSET / 8; + tx_count =3D sizeof(struct tx_port_stats) / 8; + + flags =3D PORT_QSTATS_REQ_FLAGS_COUNTER_MASK; + rc =3D bnge_hwrm_port_qstats(bd, flags); + if (rc) { + u64 mask =3D (1ULL << 40) - 1; + + bnge_fill_masks(rx_masks, mask, rx_count); + bnge_fill_masks(tx_masks, mask, tx_count); + } else { + bnge_copy_hw_masks(rx_masks, rx_stats, rx_count); + bnge_copy_hw_masks(tx_masks, tx_stats, tx_count); + bnge_hwrm_port_qstats(bd, 0); + } + } + + if (bn->flags & BNGE_FLAG_PORT_STATS_EXT) { + stats =3D &bn->rx_port_stats_ext; + rx_stats =3D stats->hw_stats; + rx_masks =3D stats->hw_masks; + rx_count =3D sizeof(struct rx_port_stats_ext) / 8; + stats =3D &bn->tx_port_stats_ext; + tx_stats =3D stats->hw_stats; + tx_masks =3D stats->hw_masks; + tx_count =3D sizeof(struct tx_port_stats_ext) / 8; + + flags =3D PORT_QSTATS_EXT_REQ_FLAGS_COUNTER_MASK; + rc =3D bnge_hwrm_port_qstats_ext(bd, flags); + if (rc) { + u64 mask =3D (1ULL << 40) - 1; + + bnge_fill_masks(rx_masks, mask, rx_count); + if (tx_stats) + bnge_fill_masks(tx_masks, mask, tx_count); + } else { + bnge_copy_hw_masks(rx_masks, rx_stats, rx_count); + if (tx_stats) + bnge_copy_hw_masks(tx_masks, tx_stats, + tx_count); + bnge_hwrm_port_qstats_ext(bd, 0); + } + } +} + +static void bnge_free_port_ext_stats(struct bnge_net *bn) +{ + bn->flags &=3D ~BNGE_FLAG_PORT_STATS_EXT; + bnge_free_stats_mem(bn, &bn->rx_port_stats_ext); + bnge_free_stats_mem(bn, &bn->tx_port_stats_ext); +} + +static void bnge_free_port_stats(struct bnge_net *bn) +{ + bn->flags &=3D ~BNGE_FLAG_PORT_STATS; + bnge_free_stats_mem(bn, &bn->port_stats); + bnge_free_port_ext_stats(bn); +} + static int bnge_alloc_ring_stats(struct bnge_net *bn) { struct bnge_dev *bd =3D bn->bd; @@ -88,12 +206,77 @@ static int bnge_alloc_ring_stats(struct bnge_net *bn) struct bnge_nq_ring_info *nqr =3D &bnapi->nq_ring; =20 nqr->stats.len =3D size; - rc =3D bnge_alloc_stats_mem(bn, &nqr->stats); + rc =3D bnge_alloc_stats_mem(bn, &nqr->stats, !i); if (rc) goto err_free_ring_stats; =20 nqr->hw_stats_ctx_id =3D INVALID_STATS_CTX_ID; } + + return 0; + +err_free_ring_stats: + bnge_free_ring_stats(bn); + return rc; +} + +static void bnge_alloc_port_ext_stats(struct bnge_net *bn) +{ + struct bnge_dev *bd =3D bn->bd; + int rc; + + if (!(bd->fw_cap & BNGE_FW_CAP_EXT_STATS_SUPPORTED)) + return; + + if (!bn->rx_port_stats_ext.hw_stats) { + bn->rx_port_stats_ext.len =3D sizeof(struct rx_port_stats_ext); + rc =3D bnge_alloc_stats_mem(bn, &bn->rx_port_stats_ext, true); + /* Extended stats are optional */ + if (rc) + return; + } + + if (!bn->tx_port_stats_ext.hw_stats) { + bn->tx_port_stats_ext.len =3D sizeof(struct tx_port_stats_ext); + rc =3D bnge_alloc_stats_mem(bn, &bn->tx_port_stats_ext, true); + /* Extended stats are optional */ + if (rc) { + bnge_free_port_ext_stats(bn); + return; + } + } + bn->flags |=3D BNGE_FLAG_PORT_STATS_EXT; +} + +static int bnge_alloc_port_stats(struct bnge_net *bn) +{ + int rc; + + if (!bn->port_stats.hw_stats) { + bn->port_stats.len =3D BNGE_PORT_STATS_SIZE; + rc =3D bnge_alloc_stats_mem(bn, &bn->port_stats, true); + if (rc) + return rc; + + bn->flags |=3D BNGE_FLAG_PORT_STATS; + } + + bnge_alloc_port_ext_stats(bn); + return 0; +} + +static int bnge_alloc_stats(struct bnge_net *bn) +{ + int rc; + + rc =3D bnge_alloc_ring_stats(bn); + if (rc) + return rc; + + rc =3D bnge_alloc_port_stats(bn); + if (rc) + goto err_free_ring_stats; + return 0; =20 err_free_ring_stats: @@ -934,6 +1117,7 @@ static void bnge_free_core(struct bnge_net *bn) bnge_free_nq_tree(bn); bnge_free_nq_arrays(bn); bnge_free_ring_stats(bn); + bnge_free_port_stats(bn); bnge_free_ring_grps(bn); bnge_free_vnics(bn); kfree(bn->tx_ring_map); @@ -1018,10 +1202,12 @@ static int bnge_alloc_core(struct bnge_net *bn) txr->bnapi =3D bnapi2; } =20 - rc =3D bnge_alloc_ring_stats(bn); + rc =3D bnge_alloc_stats(bn); if (rc) goto err_free_core; =20 + bnge_init_stats(bn); + rc =3D bnge_alloc_vnics(bn); if (rc) goto err_free_core; diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h b/drivers/net= /ethernet/broadcom/bnge/bnge_netdev.h index 5636eb371e24..74b08d492c53 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h +++ b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h @@ -224,6 +224,41 @@ struct bnge_tpa_info { #define BNGE_NQ_HDL_IDX(hdl) ((hdl) & BNGE_NQ_HDL_IDX_MASK) #define BNGE_NQ_HDL_TYPE(hdl) (((hdl) & BNGE_NQ_HDL_TYPE_MASK) >> \ BNGE_NQ_HDL_TYPE_SHIFT) +#define BNGE_GET_RING_STATS64(sw, counter) \ + (*((sw) + offsetof(struct ctx_hw_stats, counter) / 8)) + +#define BNGE_GET_RX_PORT_STATS64(sw, counter) \ + (*((sw) + offsetof(struct rx_port_stats, counter) / 8)) + +#define BNGE_GET_TX_PORT_STATS64(sw, counter) \ + (*((sw) + offsetof(struct tx_port_stats, counter) / 8)) + +#define BNGE_PORT_STATS_SIZE \ + (sizeof(struct rx_port_stats) + sizeof(struct tx_port_stats) + 1024) + +#define BNGE_TX_PORT_STATS_BYTE_OFFSET \ + (sizeof(struct rx_port_stats) + 512) + +#define BNGE_RX_STATS_OFFSET(counter) \ + (offsetof(struct rx_port_stats, counter) / 8) + +#define BNGE_TX_STATS_OFFSET(counter) \ + ((offsetof(struct tx_port_stats, counter) + \ + BNGE_TX_PORT_STATS_BYTE_OFFSET) / 8) + +#define BNGE_RX_STATS_EXT_OFFSET(counter) \ + (offsetof(struct rx_port_stats_ext, counter) / 8) + +#define BNGE_TX_STATS_EXT_OFFSET(counter) \ + (offsetof(struct tx_port_stats_ext, counter) / 8) + +struct bnge_stats_mem { + u64 *sw_stats; + u64 *hw_masks; + void *hw_stats; + dma_addr_t hw_stats_map; + u32 len; +}; =20 enum bnge_net_state { BNGE_STATE_NAPI_DISABLED, @@ -231,6 +266,11 @@ enum bnge_net_state { =20 #define BNGE_TIMER_INTERVAL HZ =20 +enum bnge_net_flag { + BNGE_FLAG_PORT_STATS =3D BIT(0), + BNGE_FLAG_PORT_STATS_EXT =3D BIT(1), +}; + enum bnge_sp_event { BNGE_LINK_CHNG_SP_EVENT, BNGE_LINK_SPEED_CHNG_SP_EVENT, @@ -309,6 +349,17 @@ struct bnge_net { unsigned long sp_event; =20 struct bnge_ethtool_link_info eth_link_info; + + u64 flags; + + struct bnge_stats_mem port_stats; + struct bnge_stats_mem rx_port_stats_ext; + struct bnge_stats_mem tx_port_stats_ext; + u16 fw_rx_stats_ext_size; + u16 fw_tx_stats_ext_size; + + u8 pri2cos_idx[8]; + bool pri2cos_valid; }; =20 #define BNGE_DEFAULT_RX_RING_SIZE 511 @@ -374,14 +425,6 @@ void bnge_set_ring_params(struct bnge_dev *bd); bnge_writeq(bd, (db)->db_key64 | DBR_TYPE_NQ_ARM | \ DB_RING_IDX(db, idx), (db)->doorbell) =20 -struct bnge_stats_mem { - u64 *sw_stats; - u64 *hw_masks; - void *hw_stats; - dma_addr_t hw_stats_map; - int len; -}; - struct nqe_cn { __le16 type; #define NQ_CN_TYPE_MASK 0x3fUL @@ -588,4 +631,5 @@ u8 *__bnge_alloc_rx_frag(struct bnge_net *bn, dma_addr_= t *mapping, int bnge_alloc_rx_netmem(struct bnge_net *bn, struct bnge_rx_ring_info *rx= r, u16 prod, gfp_t gfp); void __bnge_queue_sp_work(struct bnge_net *bn); +void bnge_copy_hw_masks(u64 *mask_arr, __le64 *hw_mask_arr, int count); #endif /* _BNGE_NETDEV_H_ */ --=20 2.47.1 From nobody Mon Apr 6 16:23:50 2026 Received: from mail-oo1-f97.google.com (mail-oo1-f97.google.com [209.85.161.97]) (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 6198539A06D for ; Thu, 19 Mar 2026 05:53:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.97 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899582; cv=none; b=DhKGj6iE3Vz6wn9q1832Us0mhCzaisgt+wXz3UacL59Gf3aF7x1KgUf768b1Nri10tcQvy61eN64JUpLwQ/h3YINbttD08+J6WmScc4IdHNXS+O509BWcBYZbKMbZXl6WtrIB2LurRi5gz4wkPDSybDy5I9I9r7bLNG2W/TU3Aw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899582; c=relaxed/simple; bh=uNBl9Psxva5SJPexCKlx/63Rr8yoHyHROPl3twU89Vw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=drCA7oZWkJDYDFWl7Lfe30OhV5LahaLy0+way2WR0Gvc/m+1iz9CH63YgKEYe4ifSbxdrgIqdzIDBpswZ2jFRmtPsQ4lFOC7y9RB4P2bdz9NFwrZaFOirJVECSYxyX2aARHNRsj0x+nlS7zqW+SEFDS53h2bly3KkEc7DDtPJYg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com; spf=fail smtp.mailfrom=broadcom.com; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b=NxQEEq4a; arc=none smtp.client-ip=209.85.161.97 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=broadcom.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="NxQEEq4a" Received: by mail-oo1-f97.google.com with SMTP id 006d021491bc7-67bb04151dcso157013eaf.0 for ; Wed, 18 Mar 2026 22:53:00 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1773899579; x=1774504379; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Kebxp6wh4nYYGznvwFFSyNwKbOSUnFEmSaJutA9Bji8=; b=ciFPzBKRbqZVH2DE9FFacwIzgUwNq1ECNj2uU8Jb5UnnIVJ6khvOHRMoACexbeeQZI 0RnjGwnAGGtOc+rPXEyyzBcG8kBi76w1nfU3jqN1uMbdtDFscpHe+sW6fySlagTtTJT7 Kc50q7J/rVUlH2vBlaDYO/g0654QPi+k3tyS0tcrBi+NsbdmZpJxieW9mM0qFwz0EdTy q2yc5ActCVDy4azFV7U8Jv6jkTIAAUN2LnrnbhSrBiYUU7a9okCFTcJc6qhmZIRNenvt F4QpmlLcjX7zbJEhdJi4YeMUkRd5Sl/75kFW73UjI0r//rjCDbmVENF8VV4ak1j4dnKk 3cNA== X-Forwarded-Encrypted: i=1; AJvYcCV957FQxVNSOiFNmeRD66QKJTI906niqafob0k3w8d1zGE/7v+3S6Yom7QAqakoySjf7jQxR2nG18KY7Eo=@vger.kernel.org X-Gm-Message-State: AOJu0YwfxxBJAnW4C0A0lfUtC6JpY9vRoVv63rgD/RRACpHKbpkJ94Xn 7k2/JfFsD2x+eBDXjxfci8ClRYpVSwIC0Z41whO8d+wWg/NmYgP/3YHsn/mq9V/+MqYPGFe/4Se +kv+AEelrQTZfkLY5cV+/6MDOgz+NwzaAg23n7s+b5Sa8BKkQi+o0CsllonBfE4C3bR/YtCoodX eo7LevvK2bxCtxUoHR5XkiWFB2wTyKrZynffH3Gb3W6lmGbQUzebN9X6Nvgs5qKt1+QsTmcPyGg I4D5657PiQFVAVzyA== X-Gm-Gg: ATEYQzxOYIxsZgjKDzxlAxVFhhcal+hopdUTzLxgLelCx762JxZXdp9M58Xje1qOyPV 4zOCvzp+CPkFdqVRYnHYX2jJVEhFH8EPct90i6B/usVrU5c/0REs/WofucsG2oxvWFUQCYF70yf 1ft28ip3j8wmjb733F75W0G7sW4QWjUqShO2RjauzT7ZYLoP++0eP6vCfH5oJ+/3/u+hXHlVxSO BaDiScbikjwQ19E6rNJS1JKMOZTa8/nbHjwKd3o9EKk+vah1pZpsy0odXgTHUgcCLf5/8hF5WEt vOlfpanL+sRUjuqx1pv9g2We2DKE36bEeibjCLCJbfnRiouxzyS6QYzCTnwl2LwGDLa8En4PizS wJL4bI0L7xPYm7LcHPhfTkCtopAoFiOEYfoMpT+8DWah04OjAK2MVGQJq1tHaORsJqlancbBnjm 6wcydRoq3iytIhgw3O6FaontcWIyspc+gL7A7gClPlndfBvZ41Hyljo6k= X-Received: by 2002:a05:6820:4df4:b0:67b:ab68:b5f2 with SMTP id 006d021491bc7-67c0daa1ab1mr3944126eaf.22.1773899579100; Wed, 18 Mar 2026 22:52:59 -0700 (PDT) Received: from smtp-us-east1-p01-i01-si01.dlp.protect.broadcom.com (address-144-49-247-22.dlp.protect.broadcom.com. [144.49.247.22]) by smtp-relay.gmail.com with ESMTPS id 006d021491bc7-67c0d8f3593sm338191eaf.7.2026.03.18.22.52.58 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 18 Mar 2026 22:52:59 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-yw1-f197.google.com with SMTP id 00721157ae682-798531a0f58so4841097b3.0 for ; Wed, 18 Mar 2026 22:52:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1773899578; x=1774504378; 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; bh=Kebxp6wh4nYYGznvwFFSyNwKbOSUnFEmSaJutA9Bji8=; b=NxQEEq4aa7HpC+t3A1hKxltp30Sx8N46DqSQgLhOeTW95oGuH4q0d2CVmnY+35UJN0 782mnWgw7DNYN+b42NmgjTaSPxk8HkVJue0Cj2NbovEv7aj4unY3oOQJmNvSW+Rw9Kgk O8gAhj3ExzyS+I1+OPNZv3rWwuOifaxAu057Q= X-Forwarded-Encrypted: i=1; AJvYcCUnVNyqRhyOI8zmlgVCmd0/tCsigffwqJjRBdRBU784qIH8AmTLt50rV8x4nQHRiB5PwY8v0DYgJxQcLh4=@vger.kernel.org X-Received: by 2002:a05:690c:45c1:b0:79a:5508:5831 with SMTP id 00721157ae682-79a7190cc29mr65815017b3.20.1773899577867; Wed, 18 Mar 2026 22:52:57 -0700 (PDT) X-Received: by 2002:a05:690c:45c1:b0:79a:5508:5831 with SMTP id 00721157ae682-79a7190cc29mr65814857b3.20.1773899577410; Wed, 18 Mar 2026 22:52:57 -0700 (PDT) Received: from localhost.localdomain ([192.19.203.250]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-64e91a1cd32sm2918980d50.2.2026.03.18.22.52.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Mar 2026 22:52:57 -0700 (PDT) From: Vikas Gupta To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, michael.chan@broadcom.com, pavan.chebbi@broadcom.com, vsrama-krishna.nemani@broadcom.com, rajashekar.hudumula@broadcom.com, ajit.khaparde@broadcom.com, Bhargava Marreddy , Vikas Gupta Subject: [PATCH net-next v8 07/10] bng_en: periodically fetch and accumulate hardware statistics Date: Thu, 19 Mar 2026 11:21:21 +0530 Message-ID: <20260319055124.1350670-8-vikas.gupta@broadcom.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20260319055124.1350670-1-vikas.gupta@broadcom.com> References: <20260319055124.1350670-1-vikas.gupta@broadcom.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e Content-Type: text/plain; charset="utf-8" From: Bhargava Marreddy Use the timer to schedule periodic stats collection via the workqueue when the link is up. Fetch fresh counters from hardware via DMA and accumulate them into 64-bit software shadows, handling wrap-around for counters narrower than 64 bits. Signed-off-by: Bhargava Marreddy Reviewed-by: Vikas Gupta --- .../net/ethernet/broadcom/bnge/bnge_netdev.c | 90 +++++++++++++++++++ .../net/ethernet/broadcom/bnge/bnge_netdev.h | 1 + 2 files changed, 91 insertions(+) diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c b/drivers/net= /ethernet/broadcom/bnge/bnge_netdev.c index 9f62b5f19a2e..93f0149bd775 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c @@ -313,9 +313,93 @@ static void bnge_timer(struct timer_list *t) } } =20 + if (BNGE_LINK_IS_UP(bd) && bn->stats_coal_ticks) + bnge_queue_sp_work(bn, BNGE_PERIODIC_STATS_SP_EVENT); + mod_timer(&bn->timer, jiffies + bn->current_interval); } =20 +static void bnge_add_one_ctr(u64 hw, u64 *sw, u64 mask) +{ + u64 sw_tmp, sw_val; + + hw &=3D mask; + sw_val =3D READ_ONCE(*sw); + sw_tmp =3D (sw_val & ~mask) | hw; + if (hw < (sw_val & mask)) + sw_tmp +=3D mask + 1; + WRITE_ONCE(*sw, sw_tmp); +} + +static void __bnge_accumulate_stats(__le64 *hw_stats, u64 *sw_stats, u64 *= masks, + int count) +{ + int i; + + for (i =3D 0; i < count; i++) { + u64 hw =3D le64_to_cpu(READ_ONCE(hw_stats[i])); + + if (masks[i] =3D=3D -1ULL) + sw_stats[i] =3D hw; + else + bnge_add_one_ctr(hw, &sw_stats[i], masks[i]); + } +} + +static void bnge_accumulate_stats(struct bnge_stats_mem *stats) +{ + if (!stats->hw_stats) + return; + + __bnge_accumulate_stats(stats->hw_stats, stats->sw_stats, + stats->hw_masks, stats->len / 8); +} + +static void bnge_accumulate_all_stats(struct bnge_dev *bd) +{ + struct bnge_net *bn =3D netdev_priv(bd->netdev); + struct bnge_stats_mem *ring0_stats =3D NULL; + int i; + + for (i =3D 0; i < bd->nq_nr_rings; i++) { + struct bnge_napi *bnapi =3D bn->bnapi[i]; + struct bnge_nq_ring_info *nqr; + struct bnge_stats_mem *stats; + + nqr =3D &bnapi->nq_ring; + stats =3D &nqr->stats; + + if (!ring0_stats) + ring0_stats =3D &bn->bnapi[0]->nq_ring.stats; + + __bnge_accumulate_stats(stats->hw_stats, stats->sw_stats, + ring0_stats->hw_masks, + ring0_stats->len / 8); + } + + if (bn->flags & BNGE_FLAG_PORT_STATS) { + struct bnge_stats_mem *stats =3D &bn->port_stats; + __le64 *hw_stats =3D stats->hw_stats; + u64 *sw_stats =3D stats->sw_stats; + u64 *masks =3D stats->hw_masks; + u16 cnt; + + cnt =3D sizeof(struct rx_port_stats) / 8; + __bnge_accumulate_stats(hw_stats, sw_stats, masks, cnt); + + hw_stats +=3D BNGE_TX_PORT_STATS_BYTE_OFFSET / 8; + sw_stats +=3D BNGE_TX_PORT_STATS_BYTE_OFFSET / 8; + masks +=3D BNGE_TX_PORT_STATS_BYTE_OFFSET / 8; + cnt =3D sizeof(struct tx_port_stats) / 8; + __bnge_accumulate_stats(hw_stats, sw_stats, masks, cnt); + } + + if (bn->flags & BNGE_FLAG_PORT_STATS_EXT) { + bnge_accumulate_stats(&bn->rx_port_stats_ext); + bnge_accumulate_stats(&bn->tx_port_stats_ext); + } +} + static void bnge_sp_task(struct work_struct *work) { struct bnge_net *bn =3D container_of(work, struct bnge_net, sp_task); @@ -327,6 +411,12 @@ static void bnge_sp_task(struct work_struct *work) return; } =20 + if (test_and_clear_bit(BNGE_PERIODIC_STATS_SP_EVENT, &bn->sp_event)) { + bnge_hwrm_port_qstats(bd, 0); + bnge_hwrm_port_qstats_ext(bd, 0); + bnge_accumulate_all_stats(bd); + } + if (test_and_clear_bit(BNGE_UPDATE_PHY_SP_EVENT, &bn->sp_event)) { int rc; =20 diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h b/drivers/net= /ethernet/broadcom/bnge/bnge_netdev.h index 74b08d492c53..548c5a77e76a 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h +++ b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h @@ -276,6 +276,7 @@ enum bnge_sp_event { BNGE_LINK_SPEED_CHNG_SP_EVENT, BNGE_LINK_CFG_CHANGE_SP_EVENT, BNGE_UPDATE_PHY_SP_EVENT, + BNGE_PERIODIC_STATS_SP_EVENT, }; =20 struct bnge_net { --=20 2.47.1 From nobody Mon Apr 6 16:23:50 2026 Received: from mail-qt1-f227.google.com (mail-qt1-f227.google.com [209.85.160.227]) (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 5EFBC397E99 for ; Thu, 19 Mar 2026 05:53:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.227 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899586; cv=none; b=aspolCZThxXqwJzvTn3wATuUAh8YjXc9aY/uLJLvb54aNyhnrRaeg/EYi80Mlpfn0ZbvETD/6V44tx2GlJxrm95FJ+549vj/WbmgiXVkhXf0vgma0yYzwFeqKAuZPEhKjH69gd12EnD+yRdLLl5HNsLSMWFl7QEEKhjNjOGuS+I= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899586; c=relaxed/simple; bh=xeLBGKWLDwoWzVUgrLFagxSMqAxIiAVyI6AvxJHgAb4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=EcljydsJyP7YaPlei2xWQB6nt5ZlVgIKHOyEoFtazwvXxqoB8B8u8wyD7sbBD/7Hef/25W0XI8FbOABASuCt4vnmIqweH2oByAL3mhECLX+2rPozxf1oIXgmGH2WYMIVEpL8oHd8xzEvXnmLmrb3z4A0+pfo3y2SXpJt9oie6qw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com; spf=fail smtp.mailfrom=broadcom.com; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b=Ro0wtw1A; arc=none smtp.client-ip=209.85.160.227 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=broadcom.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="Ro0wtw1A" Received: by mail-qt1-f227.google.com with SMTP id d75a77b69052e-50934b8ab60so17258891cf.0 for ; Wed, 18 Mar 2026 22:53:05 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1773899584; x=1774504384; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=AAh3ISKJQxB+of/XmTrFR/7AjtNkBJimjNnj4gDwdz4=; b=YjKfFy3HlE+0GTMnjjd4eLDq9RDhZTbhEzADoXWKSEfjQvkktZZ/QuBNl26KqWLlbd IKNPfnLxFraz/eAMtSLfj/yIxeA33CiQ6+J7kOLkcLh3axgls3RqkuNLjC7kl8/WnAhv uPq1lym3qfpbXAMo2ugo5dc0oiTCWso5zy0j8iLbFrfnqnH/aEqu7tfnl4bEdEnOv2vI c7xeEnR16wJWlR12kzmlTt2VN7fV0EqWlVIa6tuYpMxHkFHmYlc9zCDIIM3IJuHFVbxn rD++5eGQoLdpSgMhAUv3xqWS3jb1enDSOYWg6cy4drRVEhsKOXPUhsZ5TDqkObQ7wfxD aiyw== X-Forwarded-Encrypted: i=1; AJvYcCXTG2ZZKIofNtMMg0O6D8XOnPCTONhSihpJzRC/6W5fRmb4sCrW8ifv9ddlehDArB7c2lX7jYFuZWVkTAQ=@vger.kernel.org X-Gm-Message-State: AOJu0YxoO8g6THF4mkSMhIMFv+4uhdutr1XSWnF+pWSI/RC08fcmIs+D ekyxRf76KMYvlygXxWzDoJQ6WtzvIuC7xoT96qlKp37FTgHPXFDly+MDKl7iCzuEF0DY7JUdQI6 invDlDdzfJO8B/s3JHBRo40KpQqXr1LNKx8i+fbmTVPlQ2pTsYBUDtDdgpL1qlEgly9jF9hhwOT 6XeRIJk7Eh0B+kBMmLkceq5pnlGDwSrO0tng9mB5B374y9bdpOuJNNuxN71CTRhLykjnPHFGmxm N0cyCXrw8q8/6gTzQ== X-Gm-Gg: ATEYQzzVpbiOo9ScX8iPgtE28gdW/fiMyoyvOb1CH7GXSlui3gbAFDda/dLD25PPVlZ ML7GOvDai644flnKUj8wkBilMge61Z7aYinVrhJPDbIJZC8rK25d12FeisiIFGnO+YKB45cmllQ xpa29IfZAa8rz9+/IA09uhShWXVGlylGH4mBxRTWXHBtwrXsH1tg5AF9GrAk1HrL/6EkZ++doiN BloygVx5BVTqW1nV6RlFccBct+3DmzTltxFjvtzBg4dHDlvQKzqbyW+DwgOxgHd+bnlupzpDEY5 ain55ZGrhiTTp9Oav5Ab6PJPxI3YzUJAd3/f1PpXOt2Wppq/dYvnjlkUGI8rfrOVtIb5scQbQT8 SV1Ofj2/z5LPBBlUcpiZ8KiAToa038OC6PTD+VoYtBmeoPeNkoZGMG81DNTGPJluT+ZmatiMTtY r4oEgDXLlK65SlP6fjXTfvWVwuBmHgrfldQwg+c5pcpENWFRCYLNaEB8s= X-Received: by 2002:a05:622a:612:b0:509:2231:977a with SMTP id d75a77b69052e-50b247666c6mr28799971cf.30.1773899584291; Wed, 18 Mar 2026 22:53:04 -0700 (PDT) Received: from smtp-us-east1-p01-i01-si01.dlp.protect.broadcom.com (address-144-49-247-22.dlp.protect.broadcom.com. [144.49.247.22]) by smtp-relay.gmail.com with ESMTPS id d75a77b69052e-50b135a80ebsm5434981cf.4.2026.03.18.22.53.04 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 18 Mar 2026 22:53:04 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-yx1-f71.google.com with SMTP id 956f58d0204a3-64ca2fce827so2404738d50.0 for ; Wed, 18 Mar 2026 22:53:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1773899583; x=1774504383; 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; bh=AAh3ISKJQxB+of/XmTrFR/7AjtNkBJimjNnj4gDwdz4=; b=Ro0wtw1ATY+kSZTpKf0mOx1AxeQZCNlhIZWMHjGqMAi5G9wwCLBD/nMtEf2k98d989 awxAjFCApLnX947fWFhB5wfYKlgAGgJhMtaen0Rr4+cBvAnABq4ZSM/dEdNUDF2gP5Tz uGtCzexENolCoxDmFSYXxvNZYOU/lsBcZXkzc= X-Forwarded-Encrypted: i=1; AJvYcCVqJVlrD6yKqVO/8yS95vCpouAILa4K0wMnyI2PDI+0EH1+HFmL1RzMUvc9BJMIGxuACXtiglQUXjn0dps=@vger.kernel.org X-Received: by 2002:a05:690e:16e4:b0:64c:9c1c:5f6e with SMTP id 956f58d0204a3-64e9ccc4ed3mr1469948d50.5.1773899583695; Wed, 18 Mar 2026 22:53:03 -0700 (PDT) X-Received: by 2002:a05:690e:16e4:b0:64c:9c1c:5f6e with SMTP id 956f58d0204a3-64e9ccc4ed3mr1469937d50.5.1773899583275; Wed, 18 Mar 2026 22:53:03 -0700 (PDT) Received: from localhost.localdomain ([192.19.203.250]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-64e91a1cd32sm2918980d50.2.2026.03.18.22.52.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Mar 2026 22:53:02 -0700 (PDT) From: Vikas Gupta To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, michael.chan@broadcom.com, pavan.chebbi@broadcom.com, vsrama-krishna.nemani@broadcom.com, rajashekar.hudumula@broadcom.com, ajit.khaparde@broadcom.com, Bhargava Marreddy , Vikas Gupta Subject: [PATCH net-next v8 08/10] bng_en: implement ndo_get_stats64 Date: Thu, 19 Mar 2026 11:21:22 +0530 Message-ID: <20260319055124.1350670-9-vikas.gupta@broadcom.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20260319055124.1350670-1-vikas.gupta@broadcom.com> References: <20260319055124.1350670-1-vikas.gupta@broadcom.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e Content-Type: text/plain; charset="utf-8" From: Bhargava Marreddy Implement the ndo_get_stats64 callback to report aggregate network statistics. The driver gathers these by accumulating the per-ring counters into the provided rtnl_link_stats64 structure. Signed-off-by: Bhargava Marreddy Reviewed-by: Vikas Gupta --- .../net/ethernet/broadcom/bnge/bnge_netdev.c | 100 ++++++++++++++++++ .../net/ethernet/broadcom/bnge/bnge_netdev.h | 2 + 2 files changed, 102 insertions(+) diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c b/drivers/net= /ethernet/broadcom/bnge/bnge_netdev.c index 93f0149bd775..2513b0907693 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c @@ -2904,6 +2904,99 @@ static int bnge_shutdown_nic(struct bnge_net *bn) return 0; } =20 +static void bnge_get_ring_stats(struct bnge_dev *bd, + struct rtnl_link_stats64 *stats) +{ + struct bnge_net *bn =3D netdev_priv(bd->netdev); + int i; + + for (i =3D 0; i < bd->nq_nr_rings; i++) { + struct bnge_napi *bnapi =3D bn->bnapi[i]; + struct bnge_nq_ring_info *nqr; + u64 *sw; + + nqr =3D &bnapi->nq_ring; + sw =3D nqr->stats.sw_stats; + + stats->rx_packets +=3D BNGE_GET_RING_STATS64(sw, rx_ucast_pkts); + stats->rx_packets +=3D BNGE_GET_RING_STATS64(sw, rx_mcast_pkts); + stats->rx_packets +=3D BNGE_GET_RING_STATS64(sw, rx_bcast_pkts); + + stats->tx_packets +=3D BNGE_GET_RING_STATS64(sw, tx_ucast_pkts); + stats->tx_packets +=3D BNGE_GET_RING_STATS64(sw, tx_mcast_pkts); + stats->tx_packets +=3D BNGE_GET_RING_STATS64(sw, tx_bcast_pkts); + + stats->rx_bytes +=3D BNGE_GET_RING_STATS64(sw, rx_ucast_bytes); + stats->rx_bytes +=3D BNGE_GET_RING_STATS64(sw, rx_mcast_bytes); + stats->rx_bytes +=3D BNGE_GET_RING_STATS64(sw, rx_bcast_bytes); + + stats->tx_bytes +=3D BNGE_GET_RING_STATS64(sw, tx_ucast_bytes); + stats->tx_bytes +=3D BNGE_GET_RING_STATS64(sw, tx_mcast_bytes); + stats->tx_bytes +=3D BNGE_GET_RING_STATS64(sw, tx_bcast_bytes); + + stats->rx_missed_errors +=3D + BNGE_GET_RING_STATS64(sw, rx_discard_pkts); + + stats->multicast +=3D BNGE_GET_RING_STATS64(sw, rx_mcast_pkts); + stats->tx_dropped +=3D BNGE_GET_RING_STATS64(sw, tx_error_pkts); + } +} + +static void bnge_add_prev_stats(struct bnge_net *bn, + struct rtnl_link_stats64 *stats) +{ + struct rtnl_link_stats64 *prev_stats =3D &bn->net_stats_prev; + + stats->rx_packets +=3D prev_stats->rx_packets; + stats->tx_packets +=3D prev_stats->tx_packets; + stats->rx_bytes +=3D prev_stats->rx_bytes; + stats->tx_bytes +=3D prev_stats->tx_bytes; + stats->rx_missed_errors +=3D prev_stats->rx_missed_errors; + stats->multicast +=3D prev_stats->multicast; + stats->tx_dropped +=3D prev_stats->tx_dropped; +} + +static void bnge_get_stats64(struct net_device *dev, + struct rtnl_link_stats64 *stats) +{ + struct bnge_net *bn =3D netdev_priv(dev); + struct bnge_dev *bd =3D bn->bd; + + rcu_read_lock(); + if (!test_bit(BNGE_STATE_OPEN, &bd->state)) { + rcu_read_unlock(); + *stats =3D bn->net_stats_prev; + return; + } + + bnge_get_ring_stats(bd, stats); + bnge_add_prev_stats(bn, stats); + + if (bn->flags & BNGE_FLAG_PORT_STATS) { + u64 *rx =3D bn->port_stats.sw_stats; + u64 *tx =3D bn->port_stats.sw_stats + + BNGE_TX_PORT_STATS_BYTE_OFFSET / 8; + + stats->rx_crc_errors =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_fcs_err_frames); + stats->rx_frame_errors =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_align_err_frames); + stats->rx_length_errors =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_undrsz_frames) + + BNGE_GET_RX_PORT_STATS64(rx, rx_ovrsz_frames) + + BNGE_GET_RX_PORT_STATS64(rx, rx_runt_frames); + stats->rx_errors =3D + BNGE_GET_RX_PORT_STATS64(rx, rx_false_carrier_frames) + + BNGE_GET_RX_PORT_STATS64(rx, rx_jbr_frames); + stats->collisions =3D + BNGE_GET_TX_PORT_STATS64(tx, tx_total_collisions); + stats->tx_fifo_errors =3D + BNGE_GET_TX_PORT_STATS64(tx, tx_fifo_underruns); + stats->tx_errors =3D BNGE_GET_TX_PORT_STATS64(tx, tx_err); + } + rcu_read_unlock(); +} + static void bnge_close_core(struct bnge_net *bn) { struct bnge_dev *bd =3D bn->bd; @@ -2911,10 +3004,16 @@ static void bnge_close_core(struct bnge_net *bn) bnge_tx_disable(bn); =20 clear_bit(BNGE_STATE_OPEN, &bd->state); + synchronize_rcu(); =20 timer_delete_sync(&bn->timer); bnge_shutdown_nic(bn); bnge_disable_napi(bn); + + /* Save ring stats before shutdown */ + if (bn->bnapi) + bnge_get_ring_stats(bd, &bn->net_stats_prev); + bnge_free_all_rings_bufs(bn); bnge_free_irq(bn); bnge_del_napi(bn); @@ -2936,6 +3035,7 @@ static const struct net_device_ops bnge_netdev_ops = =3D { .ndo_open =3D bnge_open, .ndo_stop =3D bnge_close, .ndo_start_xmit =3D bnge_start_xmit, + .ndo_get_stats64 =3D bnge_get_stats64, .ndo_features_check =3D bnge_features_check, }; =20 diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h b/drivers/net= /ethernet/broadcom/bnge/bnge_netdev.h index 548c5a77e76a..a23302a1ab9d 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h +++ b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h @@ -353,6 +353,8 @@ struct bnge_net { =20 u64 flags; =20 + struct rtnl_link_stats64 net_stats_prev; + struct bnge_stats_mem port_stats; struct bnge_stats_mem rx_port_stats_ext; struct bnge_stats_mem tx_port_stats_ext; --=20 2.47.1 From nobody Mon Apr 6 16:23:50 2026 Received: from mail-ua1-f97.google.com (mail-ua1-f97.google.com [209.85.222.97]) (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 3CBB3397E99 for ; Thu, 19 Mar 2026 05:53:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.222.97 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899592; cv=none; b=pjCP2pJze8PA5ViAvgKBBluLsJhAL1svUbOGFPTU1e/Q0pXeTXUIThMMSL6+DZaWHrm/ft6Md0cERiMXBlEYxuUxeaHikMccQtdSPNFeVKdXJkh0rgqTC1N1AuTrPfbtdkBbFfsAz/KzOP7uPNCFVvXYlx+mw3xpwRb2JWN3wWA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899592; c=relaxed/simple; bh=6pVUObxKJcpqyg60HNgCKSEoCpNjAVM+AGL3wGaoVXg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=U3vLsZhKPJGd5vCkmDr7pS/cIi308aKVCw2OR4Hvda+5iN39zOLGCjrDHiTdMfFsvqCVBUUsyTFgvGqBhghOGWdtJku3OyAIzHgvKlFskuxSFrAOUY9EKR6SETCnRI+Hj19xdQXZPgXHXbiSYynlRh48PI47eF4HBZavqeLh6fQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com; spf=fail smtp.mailfrom=broadcom.com; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b=ISqdaKcY; arc=none smtp.client-ip=209.85.222.97 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=broadcom.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="ISqdaKcY" Received: by mail-ua1-f97.google.com with SMTP id a1e0cc1a2514c-950cd03fb5eso134792241.0 for ; Wed, 18 Mar 2026 22:53:11 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1773899590; x=1774504390; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=K7FaWhADbrt2uVZb4x2KUlFR/3vOeNIrrqP+sLNFjXo=; b=sS7L5nDWVudmRyhxtWhWDAcGDg+3slaZdit/t5gE4H8IL/cQNgVRsnY0HYzCAqlVlV H9VntfSpC31JgrqctDat6RNuJFDGo5DuDI1Q7PNq5lhVH8ii+4jgSMG4qOWOpW8Ezq8M paPgMIgK3n4mgzfSQ/sqI3j7op2NcLy7rKO+CMHD0uQvrZUK5H0PkRiuWrfW8zL53Wmm SOXYgw1YKtlKv+5N6JYGBoCFsQ6WnOlq0NSu9xtlZJF1pd7d8do0uqRvvVz2Pl9LZduB WRZm+am04Tln0mkMWaFEex7TZUIwOz3OFNBx9lWy8PSz62RGm9nPj0Cxbm32FxhoqWLe m4/A== X-Forwarded-Encrypted: i=1; AJvYcCVfUYB1oCguxRU7D4Q8lniQ8urXelS2626f1USHNCKhZ85czmwxvCKiJg2vQpbNQhp78Crg/6lqQ6eAHLA=@vger.kernel.org X-Gm-Message-State: AOJu0YxiM0aDfah+u7WTnQz5F0S4Q3fNPSfDzVNhjEFNMJWsr5TLTPTj BnMgsxXSMDQ2ZlaWZGS5GSpIIrOVSUR4rFt+2/9QYrFVNwu04m4MB2Au8HxR8c8wlP+ANJ04fxc po7T/+axEF7uF3HO1QsJWp4lBPktjErIX47kxxAaDbhamACnHZuBcNeljqJVjg0YSnjpcXfhh7j NapEIYlGufK0Do0FqnDp1njvDQal/dImuGT1XI/QD12ywZqmCOGvH2yq9nmoQMX7sGMHFQ0UDIT ZJA6OK7nNaMtqviZg== X-Gm-Gg: ATEYQzwdpH4nD/H7JJLVqnyGvHYEmIUTKkDv78v4/Y0WDWGuaF4vXZxoEASrv75IX5n /JSvvl/0vAhrJzndI0QwSKnM52ISq5C9F6OOfVKFIshFYYHvWrXi8HU1UmC4zv0KeQ5nLvi2F0t /iHbht5vDjqTHzldT8Z2SGcNyEwVnAAiL0pQ21O0fckk3jtLUB6hjch0IZ7SvJMLuO+59eFh2+u lDTEB+kqlHLeXDx7i83YK2O++k47N9S7usLPNn9YAgR3poRd8OCGSu54AQZEwn8I1T6/JRRuZHr ZHu+cbRWK0Pkl8cSqzUQah1ex1BOnxV9nrouP85XdS5jcZ41DIn0ARYzurvP6iYh6CjWK7NcJCc 7PTHxRR3HMtWLUdWBcRnvmOa9ZHDJpx8MbY2E9ZbPFUHSCUgInskDKlBWYAlybKo47Ph9B0W7Jo x/fCPQVgKvkRB+aK7ZT1DxypHozVqkv8cW1c0fwM30bCHyRNL6it7ivhCp1Q== X-Received: by 2002:a05:6102:374c:b0:5ff:b403:a36a with SMTP id ada2fe7eead31-6027d14075bmr2562303137.16.1773899590219; Wed, 18 Mar 2026 22:53:10 -0700 (PDT) Received: from smtp-us-east1-p01-i01-si01.dlp.protect.broadcom.com (address-144-49-247-117.dlp.protect.broadcom.com. [144.49.247.117]) by smtp-relay.gmail.com with ESMTPS id ada2fe7eead31-6027ebbb0d2sm577854137.2.2026.03.18.22.53.10 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 18 Mar 2026 22:53:10 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-yw1-f200.google.com with SMTP id 00721157ae682-790afc07667so19864947b3.0 for ; Wed, 18 Mar 2026 22:53:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1773899590; x=1774504390; 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; bh=K7FaWhADbrt2uVZb4x2KUlFR/3vOeNIrrqP+sLNFjXo=; b=ISqdaKcYulmVIsSmuq0V3vl2yKoXgmAmu1j3EI3V4DrbKeaVFQRVaGCZIoho2V62O0 38/0r1bRbTaqsOozzwhBiQ7aHO89MZyf0ECpwBx7bA4u1Fc801T1ZmEqm7bk+7O4tC0U zal132VZZuDzUHErMbehJZOnTEXFUt+e2uGJ8= X-Forwarded-Encrypted: i=1; AJvYcCXwwgsOMfMVsmITucjwQMYOvmSyXgmTO9/lSrnL7bO1C/I1w+cfnaMaErUPfsUvfLZYfu1npzFB3/PTDzA=@vger.kernel.org X-Received: by 2002:a05:690e:205c:b0:649:c523:13e9 with SMTP id 956f58d0204a3-64e915ce8bemr4583724d50.41.1773899589520; Wed, 18 Mar 2026 22:53:09 -0700 (PDT) X-Received: by 2002:a05:690e:205c:b0:649:c523:13e9 with SMTP id 956f58d0204a3-64e915ce8bemr4583715d50.41.1773899589081; Wed, 18 Mar 2026 22:53:09 -0700 (PDT) Received: from localhost.localdomain ([192.19.203.250]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-64e91a1cd32sm2918980d50.2.2026.03.18.22.53.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Mar 2026 22:53:08 -0700 (PDT) From: Vikas Gupta To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, michael.chan@broadcom.com, pavan.chebbi@broadcom.com, vsrama-krishna.nemani@broadcom.com, rajashekar.hudumula@broadcom.com, ajit.khaparde@broadcom.com, Bhargava Marreddy , Vikas Gupta Subject: [PATCH net-next v8 09/10] bng_en: implement netdev_stat_ops Date: Thu, 19 Mar 2026 11:21:23 +0530 Message-ID: <20260319055124.1350670-10-vikas.gupta@broadcom.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20260319055124.1350670-1-vikas.gupta@broadcom.com> References: <20260319055124.1350670-1-vikas.gupta@broadcom.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e Content-Type: text/plain; charset="utf-8" From: Bhargava Marreddy Implement netdev_stat_ops to provide standardized per-queue statistics via the Netlink API. Below is the description of the hardware drop counters: rx-hw-drop-overruns: Packets dropped by HW due to resource limitations (e.g., no BDs available in the host ring). rx-hw-drops: Total packets dropped by HW (sum of overruns and error drops). tx-hw-drop-errors: Packets dropped by HW because they were invalid or malformed. tx-hw-drops: Total packets dropped by HW (sum of resource limitations and error drops). The implementation was verified using the ynl tool: ./tools/net/ynl/pyynl/cli.py --spec \ Documentation/netlink/specs/netdev.yaml --dump qstats-get --json \ '{"ifindex":14, "scope":"queue"}' [{'ifindex': 14, 'queue-id': 0, 'queue-type': 'rx', 'rx-bytes': 758, 'rx-hw-drop-overruns': 0, 'rx-hw-drops': 0, 'rx-packets': 11}, {'ifindex': 14, 'queue-id': 1, 'queue-type': 'rx', 'rx-bytes': 0, 'rx-hw-drop-overruns': 0, 'rx-hw-drops': 0, 'rx-packets': 0}, {'ifindex': 14, 'queue-id': 0, 'queue-type': 'tx', 'tx-bytes': 0, 'tx-hw-drop-errors': 0, 'tx-hw-drops': 0, 'tx-packets': 0}, {'ifindex': 14, 'queue-id': 1, 'queue-type': 'tx', 'tx-bytes': 0, 'tx-hw-drop-errors': 0, 'tx-hw-drops': 0, 'tx-packets': 0}, {'ifindex': 14, 'queue-id': 2, 'queue-type': 'tx', 'tx-bytes': 810, 'tx-hw-drop-errors': 0, 'tx-hw-drops': 0, 'tx-packets': 10},] Signed-off-by: Bhargava Marreddy Reviewed-by: Vikas Gupta --- .../net/ethernet/broadcom/bnge/bnge_netdev.c | 76 +++++++++++++++++++ 1 file changed, 76 insertions(+) diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c b/drivers/net= /ethernet/broadcom/bnge/bnge_netdev.c index 2513b0907693..fa732b99358e 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c @@ -3031,6 +3031,81 @@ static int bnge_close(struct net_device *dev) return 0; } =20 +static void bnge_get_queue_stats_rx(struct net_device *dev, int i, + struct netdev_queue_stats_rx *stats) +{ + struct bnge_net *bn =3D netdev_priv(dev); + struct bnge_nq_ring_info *nqr; + u64 *sw; + + if (!bn->bnapi) + return; + + nqr =3D &bn->bnapi[i]->nq_ring; + sw =3D nqr->stats.sw_stats; + + stats->packets =3D 0; + stats->packets +=3D BNGE_GET_RING_STATS64(sw, rx_ucast_pkts); + stats->packets +=3D BNGE_GET_RING_STATS64(sw, rx_mcast_pkts); + stats->packets +=3D BNGE_GET_RING_STATS64(sw, rx_bcast_pkts); + + stats->bytes =3D 0; + stats->bytes +=3D BNGE_GET_RING_STATS64(sw, rx_ucast_bytes); + stats->bytes +=3D BNGE_GET_RING_STATS64(sw, rx_mcast_bytes); + stats->bytes +=3D BNGE_GET_RING_STATS64(sw, rx_bcast_bytes); + + stats->hw_drop_overruns =3D BNGE_GET_RING_STATS64(sw, rx_discard_pkts); + stats->hw_drops =3D BNGE_GET_RING_STATS64(sw, rx_error_pkts) + + stats->hw_drop_overruns; +} + +static void bnge_get_queue_stats_tx(struct net_device *dev, int i, + struct netdev_queue_stats_tx *stats) +{ + struct bnge_net *bn =3D netdev_priv(dev); + struct bnge_napi *bnapi; + u64 *sw; + + if (!bn->tx_ring) + return; + + bnapi =3D bn->tx_ring[bn->tx_ring_map[i]].bnapi; + sw =3D bnapi->nq_ring.stats.sw_stats; + + stats->packets =3D 0; + stats->packets +=3D BNGE_GET_RING_STATS64(sw, tx_ucast_pkts); + stats->packets +=3D BNGE_GET_RING_STATS64(sw, tx_mcast_pkts); + stats->packets +=3D BNGE_GET_RING_STATS64(sw, tx_bcast_pkts); + + stats->bytes =3D 0; + stats->bytes +=3D BNGE_GET_RING_STATS64(sw, tx_ucast_bytes); + stats->bytes +=3D BNGE_GET_RING_STATS64(sw, tx_mcast_bytes); + stats->bytes +=3D BNGE_GET_RING_STATS64(sw, tx_bcast_bytes); + + stats->hw_drop_errors =3D BNGE_GET_RING_STATS64(sw, tx_error_pkts); + stats->hw_drops =3D BNGE_GET_RING_STATS64(sw, tx_discard_pkts) + + stats->hw_drop_errors; +} + +static void bnge_get_base_stats(struct net_device *dev, + struct netdev_queue_stats_rx *rx, + struct netdev_queue_stats_tx *tx) +{ + struct bnge_net *bn =3D netdev_priv(dev); + + rx->packets =3D bn->net_stats_prev.rx_packets; + rx->bytes =3D bn->net_stats_prev.rx_bytes; + + tx->packets =3D bn->net_stats_prev.tx_packets; + tx->bytes =3D bn->net_stats_prev.tx_bytes; +} + +static const struct netdev_stat_ops bnge_stat_ops =3D { + .get_queue_stats_rx =3D bnge_get_queue_stats_rx, + .get_queue_stats_tx =3D bnge_get_queue_stats_tx, + .get_base_stats =3D bnge_get_base_stats, +}; + static const struct net_device_ops bnge_netdev_ops =3D { .ndo_open =3D bnge_open, .ndo_stop =3D bnge_close, @@ -3194,6 +3269,7 @@ int bnge_netdev_alloc(struct bnge_dev *bd, int max_ir= qs) bd->netdev =3D netdev; =20 netdev->netdev_ops =3D &bnge_netdev_ops; + netdev->stat_ops =3D &bnge_stat_ops; =20 bnge_set_ethtool_ops(netdev); =20 --=20 2.47.1 From nobody Mon Apr 6 16:23:50 2026 Received: from mail-pj1-f99.google.com (mail-pj1-f99.google.com [209.85.216.99]) (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 C9A2139A05F for ; Thu, 19 Mar 2026 05:53:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.99 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899599; cv=none; b=OpZ+yZLWbLb56vPchvC0+YrkHUowNtksIA4BCJpZo7qJ3ku+8PJcl0GZSNFiJzO1yRV2GTF+M4pWjm/bFGXIiIi38+1zi4Ym+4V/iBWgKJgo0Al+0eDdHtJoAEBxyy6BDJekp+EYUg7BGh26JcIRTZUIYsFu/upAm6JoHVIz5Vo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773899599; c=relaxed/simple; bh=GsqFZzi+npb1QMLyBt9yoLbdWZeaxHDfUeAnX4DgSs0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=EGW69yq6dRngNeae15OcHzGqCOwW/5NasfmPz6NzUOEbZ7xnoK4ZypuiSOf70RnWv4sfuhKxTGf5ExqQVJgxQPuXlRhsVdMbz02Mzz00wYOM7kzYQJFLmyOFd2DI6oYNCH3d2f19ylhjL0ErfD3T0G5BpRmTjITTxggDDkdE0RI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com; spf=fail smtp.mailfrom=broadcom.com; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b=FmftB85z; arc=none smtp.client-ip=209.85.216.99 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=broadcom.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="FmftB85z" Received: by mail-pj1-f99.google.com with SMTP id 98e67ed59e1d1-358ed696623so364261a91.0 for ; Wed, 18 Mar 2026 22:53:17 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1773899597; x=1774504397; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=pG9zNK4k/bZPhez8UbAEtKwyOdVFNkPnmbPMLI2Lsbo=; b=F1FinoYLKMRx3FxpCX9HfIuYExowTfc1JDW4oc4zPNWjn0/pxNGPTSkdCoV1WfQOk9 6B/mvp6OTDWAM908LO43QYrpbijOskS6IY/9knmGR4lV+9Og9UdLLH/DB+HlVxP/lPbe j00IbiaEe/O5OSKzpC8IvQai03i0+nH/THE/P0/sUw/NP+y24ZgE7YejGQFegxLkLqhs faVbb591hyWK7KI5XL27RtEEqDAwDR70SDg1cp4V3KKUsMl4Kd5uEeLlhUnwyCci2jRC rVfca+hw7/N1bWLikr8EJzUcYbyXdFux/OpLyk/DmhChentKh6ZEcm2IDuYh7/KEAi3J o5qg== X-Forwarded-Encrypted: i=1; AJvYcCWVAhHDHsPOn9SNL86QTD/OwTVmNeMWP1NTfY/9a8660KaJ4bZanzuizxBXP/u4XWlwSoEbvjQBT7hz04s=@vger.kernel.org X-Gm-Message-State: AOJu0YwASIdmbt+RB96JUK70k/81IUamDuZayUTNp5+P7gY0E0uFyROO VbJNFWAYxXNMmLNKwZ+uqWpD97Fy6CSZy8KIHRnQBWO/689/LG89doPmnEFzgsk7BOoTBDj6Hz3 OuDwAxTE8cfUk44bTJ9ShD1jaurdrBIxsLP9FqsJuztn2Cuix35FneWNpq9CJ/z25atPPzz687P LdCfXjtzrU0AITHPShALT4Rt4WaY7G5Q4ucuVK1A0uPXfLPytQWmHveGazZ81RPML5KQvV+zGvL bqIG+0WKLUgr6vY1Q== X-Gm-Gg: ATEYQzx3IPNiLhu5X2XfQFmikFcdRhJfLPpbrBH5gOoxzXHPiDfsEX0l8iRKPn16AiM 29WIh0UgYBl2Fa7UsJiIFCh0CIp4Gb6MZoO4UetJjWBDTG0IpiZjLYHFaxl0p1qzf28foCaKX9k FluErU3LfPs5Gdt18aom7Dq8NRF2OX8D1+jsMiCpx74lvcCZE3f+inkwtEkKPsHkalNJiH7Q4IW pox8mNKH7+4Qtq5nQh3Og65SV4hLkZZMnJp4+OLRhcE91F5T95svx3722MR0C/OJh8TAIZjuqt/ QNq9BWjiHiCy5HkAR6TumRz6ErdLHbS0qpA3w48VLHMsMk3igBwQZORjnxjKDSQz3zrzfxQh5c0 dT1HZauZx8iVAB5dY1nDfTpFFKCGtZA0/WbTY1XJImQuU74C33IZi0EkpOuAe/V7WBFIN9/CUwl GNgqdhTb5+42inwMsaH2A7pgkutAob5b5ZAhZVrFnx0yP9VQvmwkK2wwD7QA== X-Received: by 2002:a17:90b:4b:b0:35b:93d8:6ab7 with SMTP id 98e67ed59e1d1-35bb9f2986dmr5353221a91.28.1773899597005; Wed, 18 Mar 2026 22:53:17 -0700 (PDT) Received: from smtp-us-east1-p01-i01-si01.dlp.protect.broadcom.com (address-144-49-247-102.dlp.protect.broadcom.com. [144.49.247.102]) by smtp-relay.gmail.com with ESMTPS id 98e67ed59e1d1-35bc62f0ecfsm213990a91.4.2026.03.18.22.53.16 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 18 Mar 2026 22:53:17 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-yw1-f199.google.com with SMTP id 00721157ae682-79895ffb315so21880797b3.2 for ; Wed, 18 Mar 2026 22:53:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1773899595; x=1774504395; 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; bh=pG9zNK4k/bZPhez8UbAEtKwyOdVFNkPnmbPMLI2Lsbo=; b=FmftB85zl9va3ub2zv7oxqRF6WigCZB30dfKQnqw89l/tFF0RcNobz/1PAH1Rq72VK EKil8aQeoEGVntDbFtZSBR3cjoAvdHgLygSKkM8OstfaJlKByqjxudy2wYGEnSxALPL0 PxZOvjjp6O0WaDhFfxM4RY/3Kf12I8J35GMIw= X-Forwarded-Encrypted: i=1; AJvYcCX/jD2k9R8NDh3zAIXIRUavKksCsKD9hJUACPgleoyzFJ9AE5RiIMe+EnfiCDf9IiGiRmV09ymyob/tKXE=@vger.kernel.org X-Received: by 2002:a53:b7d2:0:b0:64c:985f:9d4e with SMTP id 956f58d0204a3-64e9157bf06mr4506987d50.41.1773899595433; Wed, 18 Mar 2026 22:53:15 -0700 (PDT) X-Received: by 2002:a53:b7d2:0:b0:64c:985f:9d4e with SMTP id 956f58d0204a3-64e9157bf06mr4506978d50.41.1773899594962; Wed, 18 Mar 2026 22:53:14 -0700 (PDT) Received: from localhost.localdomain ([192.19.203.250]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-64e91a1cd32sm2918980d50.2.2026.03.18.22.53.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Mar 2026 22:53:14 -0700 (PDT) From: Vikas Gupta To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, michael.chan@broadcom.com, pavan.chebbi@broadcom.com, vsrama-krishna.nemani@broadcom.com, rajashekar.hudumula@broadcom.com, ajit.khaparde@broadcom.com, Bhargava Marreddy , Vikas Gupta Subject: [PATCH net-next v8 10/10] bng_en: add support for ethtool -S stats display Date: Thu, 19 Mar 2026 11:21:24 +0530 Message-ID: <20260319055124.1350670-11-vikas.gupta@broadcom.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20260319055124.1350670-1-vikas.gupta@broadcom.com> References: <20260319055124.1350670-1-vikas.gupta@broadcom.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e Content-Type: text/plain; charset="utf-8" From: Bhargava Marreddy Implement the legacy ethtool statistics interface (get_sset_count, get_strings, get_ethtool_stats) to expose hardware counters not available through standard kernel stats APIs. Ex: a) Per-queue ring stats rxq0_ucast_packets: 2 rxq0_mcast_packets: 0 rxq0_bcast_packets: 15 rxq0_ucast_bytes: 120 rxq0_mcast_bytes: 0 rxq0_bcast_bytes: 900 txq0_ucast_packets: 0 txq0_mcast_packets: 0 txq0_bcast_packets: 0 txq0_ucast_bytes: 0 txq0_mcast_bytes: 0 txq0_bcast_bytes: 0 b) Per-queue TPA(LRO/GRO) stats rxq4_tpa_eligible_pkt: 0 rxq4_tpa_eligible_bytes: 0 rxq4_tpa_pkt: 0 rxq4_tpa_bytes: 0 rxq4_tpa_errors: 0 rxq4_tpa_events: 0 c) Port level stats rxp_good_vlan_frames: 0 rxp_mtu_err_frames: 0 rxp_tagged_frames: 0 rxp_double_tagged_frames: 0 rxp_pfc_ena_frames_pri0: 0 rxp_pfc_ena_frames_pri1: 0 rxp_pfc_ena_frames_pri2: 0 rxp_pfc_ena_frames_pri3: 0 rxp_pfc_ena_frames_pri4: 0 rxp_pfc_ena_frames_pri5: 0 rxp_pfc_ena_frames_pri6: 0 rxp_pfc_ena_frames_pri7: 0 rxp_eee_lpi_events: 0 rxp_eee_lpi_duration: 0 rxp_runt_bytes: 0 rxp_runt_frames: 0 txp_good_vlan_frames: 0 txp_jabber_frames: 0 txp_fcs_err_frames: 0 txp_pfc_ena_frames_pri0: 0 txp_pfc_ena_frames_pri1: 0 txp_pfc_ena_frames_pri2: 0 txp_pfc_ena_frames_pri3: 0 txp_pfc_ena_frames_pri4: 0 txp_pfc_ena_frames_pri5: 0 txp_pfc_ena_frames_pri6: 0 txp_pfc_ena_frames_pri7: 0 txp_eee_lpi_events: 0 txp_eee_lpi_duration: 0 txp_xthol_frames: 0 d) Per-priority stats rx_bytes_pri0: 4182650 rx_bytes_pri1: 4182650 rx_bytes_pri2: 4182650 rx_bytes_pri3: 4182650 rx_bytes_pri4: 4182650 rx_bytes_pri5: 4182650 rx_bytes_pri6: 4182650 rx_bytes_pri7: 4182650 Signed-off-by: Bhargava Marreddy Reviewed-by: Vikas Gupta --- .../net/ethernet/broadcom/bnge/bnge_ethtool.c | 481 ++++++++++++++++++ 1 file changed, 481 insertions(+) diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_ethtool.c b/drivers/ne= t/ethernet/broadcom/bnge/bnge_ethtool.c index 2ae13f18e2d7..1a0eb987ef6f 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_ethtool.c @@ -31,6 +31,271 @@ static int bnge_nway_reset(struct net_device *dev) return rc; } =20 +static const char * const bnge_ring_q_stats_str[] =3D { + "ucast_packets", + "mcast_packets", + "bcast_packets", + "ucast_bytes", + "mcast_bytes", + "bcast_bytes", +}; + +static const char * const bnge_ring_tpa2_stats_str[] =3D { + "tpa_eligible_pkt", + "tpa_eligible_bytes", + "tpa_pkt", + "tpa_bytes", + "tpa_errors", + "tpa_events", +}; + +#define BNGE_RX_PORT_STATS_ENTRY(suffix) \ + { BNGE_RX_STATS_OFFSET(rx_##suffix), "rxp_" __stringify(suffix) } + +#define BNGE_TX_PORT_STATS_ENTRY(suffix) \ + { BNGE_TX_STATS_OFFSET(tx_##suffix), "txp_" __stringify(suffix) } + +#define BNGE_RX_STATS_EXT_ENTRY(counter) \ + { BNGE_RX_STATS_EXT_OFFSET(counter), __stringify(counter) } + +#define BNGE_TX_STATS_EXT_ENTRY(counter) \ + { BNGE_TX_STATS_EXT_OFFSET(counter), __stringify(counter) } + +#define BNGE_RX_STATS_EXT_PFC_ENTRY(n) \ + BNGE_RX_STATS_EXT_ENTRY(pfc_pri##n##_rx_duration_us), \ + BNGE_RX_STATS_EXT_ENTRY(pfc_pri##n##_rx_transitions) + +#define BNGE_TX_STATS_EXT_PFC_ENTRY(n) \ + BNGE_TX_STATS_EXT_ENTRY(pfc_pri##n##_tx_duration_us), \ + BNGE_TX_STATS_EXT_ENTRY(pfc_pri##n##_tx_transitions) + +#define BNGE_RX_STATS_EXT_PFC_ENTRIES \ + BNGE_RX_STATS_EXT_PFC_ENTRY(0), \ + BNGE_RX_STATS_EXT_PFC_ENTRY(1), \ + BNGE_RX_STATS_EXT_PFC_ENTRY(2), \ + BNGE_RX_STATS_EXT_PFC_ENTRY(3), \ + BNGE_RX_STATS_EXT_PFC_ENTRY(4), \ + BNGE_RX_STATS_EXT_PFC_ENTRY(5), \ + BNGE_RX_STATS_EXT_PFC_ENTRY(6), \ + BNGE_RX_STATS_EXT_PFC_ENTRY(7) + +#define BNGE_TX_STATS_EXT_PFC_ENTRIES \ + BNGE_TX_STATS_EXT_PFC_ENTRY(0), \ + BNGE_TX_STATS_EXT_PFC_ENTRY(1), \ + BNGE_TX_STATS_EXT_PFC_ENTRY(2), \ + BNGE_TX_STATS_EXT_PFC_ENTRY(3), \ + BNGE_TX_STATS_EXT_PFC_ENTRY(4), \ + BNGE_TX_STATS_EXT_PFC_ENTRY(5), \ + BNGE_TX_STATS_EXT_PFC_ENTRY(6), \ + BNGE_TX_STATS_EXT_PFC_ENTRY(7) + +#define BNGE_RX_STATS_EXT_COS_ENTRY(n) \ + BNGE_RX_STATS_EXT_ENTRY(rx_bytes_cos##n), \ + BNGE_RX_STATS_EXT_ENTRY(rx_packets_cos##n) + +#define BNGE_TX_STATS_EXT_COS_ENTRY(n) \ + BNGE_TX_STATS_EXT_ENTRY(tx_bytes_cos##n), \ + BNGE_TX_STATS_EXT_ENTRY(tx_packets_cos##n) + +#define BNGE_RX_STATS_EXT_COS_ENTRIES \ + BNGE_RX_STATS_EXT_COS_ENTRY(0), \ + BNGE_RX_STATS_EXT_COS_ENTRY(1), \ + BNGE_RX_STATS_EXT_COS_ENTRY(2), \ + BNGE_RX_STATS_EXT_COS_ENTRY(3), \ + BNGE_RX_STATS_EXT_COS_ENTRY(4), \ + BNGE_RX_STATS_EXT_COS_ENTRY(5), \ + BNGE_RX_STATS_EXT_COS_ENTRY(6), \ + BNGE_RX_STATS_EXT_COS_ENTRY(7) \ + +#define BNGE_TX_STATS_EXT_COS_ENTRIES \ + BNGE_TX_STATS_EXT_COS_ENTRY(0), \ + BNGE_TX_STATS_EXT_COS_ENTRY(1), \ + BNGE_TX_STATS_EXT_COS_ENTRY(2), \ + BNGE_TX_STATS_EXT_COS_ENTRY(3), \ + BNGE_TX_STATS_EXT_COS_ENTRY(4), \ + BNGE_TX_STATS_EXT_COS_ENTRY(5), \ + BNGE_TX_STATS_EXT_COS_ENTRY(6), \ + BNGE_TX_STATS_EXT_COS_ENTRY(7) \ + +#define BNGE_RX_STATS_EXT_DISCARD_COS_ENTRY(n) \ + BNGE_RX_STATS_EXT_ENTRY(rx_discard_bytes_cos##n), \ + BNGE_RX_STATS_EXT_ENTRY(rx_discard_packets_cos##n) + +#define BNGE_RX_STATS_EXT_DISCARD_COS_ENTRIES \ + BNGE_RX_STATS_EXT_DISCARD_COS_ENTRY(0), \ + BNGE_RX_STATS_EXT_DISCARD_COS_ENTRY(1), \ + BNGE_RX_STATS_EXT_DISCARD_COS_ENTRY(2), \ + BNGE_RX_STATS_EXT_DISCARD_COS_ENTRY(3), \ + BNGE_RX_STATS_EXT_DISCARD_COS_ENTRY(4), \ + BNGE_RX_STATS_EXT_DISCARD_COS_ENTRY(5), \ + BNGE_RX_STATS_EXT_DISCARD_COS_ENTRY(6), \ + BNGE_RX_STATS_EXT_DISCARD_COS_ENTRY(7) + +#define BNGE_RX_STATS_PRI_ENTRY(counter, n) \ + { BNGE_RX_STATS_EXT_OFFSET(counter##_cos0), \ + __stringify(counter##_pri##n) } + +#define BNGE_TX_STATS_PRI_ENTRY(counter, n) \ + { BNGE_TX_STATS_EXT_OFFSET(counter##_cos0), \ + __stringify(counter##_pri##n) } + +#define BNGE_RX_STATS_PRI_ENTRIES(counter) \ + BNGE_RX_STATS_PRI_ENTRY(counter, 0), \ + BNGE_RX_STATS_PRI_ENTRY(counter, 1), \ + BNGE_RX_STATS_PRI_ENTRY(counter, 2), \ + BNGE_RX_STATS_PRI_ENTRY(counter, 3), \ + BNGE_RX_STATS_PRI_ENTRY(counter, 4), \ + BNGE_RX_STATS_PRI_ENTRY(counter, 5), \ + BNGE_RX_STATS_PRI_ENTRY(counter, 6), \ + BNGE_RX_STATS_PRI_ENTRY(counter, 7) + +#define BNGE_TX_STATS_PRI_ENTRIES(counter) \ + BNGE_TX_STATS_PRI_ENTRY(counter, 0), \ + BNGE_TX_STATS_PRI_ENTRY(counter, 1), \ + BNGE_TX_STATS_PRI_ENTRY(counter, 2), \ + BNGE_TX_STATS_PRI_ENTRY(counter, 3), \ + BNGE_TX_STATS_PRI_ENTRY(counter, 4), \ + BNGE_TX_STATS_PRI_ENTRY(counter, 5), \ + BNGE_TX_STATS_PRI_ENTRY(counter, 6), \ + BNGE_TX_STATS_PRI_ENTRY(counter, 7) + +#define NUM_RING_Q_HW_STATS ARRAY_SIZE(bnge_ring_q_stats_str) + +static const struct { + long offset; + char string[ETH_GSTRING_LEN]; +} bnge_tx_port_stats_ext_arr[] =3D { + BNGE_TX_STATS_EXT_COS_ENTRIES, + BNGE_TX_STATS_EXT_PFC_ENTRIES, +}; + +static const struct { + long base_off; + char string[ETH_GSTRING_LEN]; +} bnge_rx_bytes_pri_arr[] =3D { + BNGE_RX_STATS_PRI_ENTRIES(rx_bytes), +}; + +static const struct { + long base_off; + char string[ETH_GSTRING_LEN]; +} bnge_rx_pkts_pri_arr[] =3D { + BNGE_RX_STATS_PRI_ENTRIES(rx_packets), +}; + +static const struct { + long base_off; + char string[ETH_GSTRING_LEN]; +} bnge_tx_bytes_pri_arr[] =3D { + BNGE_TX_STATS_PRI_ENTRIES(tx_bytes), +}; + +static const struct { + long base_off; + char string[ETH_GSTRING_LEN]; +} bnge_tx_pkts_pri_arr[] =3D { + BNGE_TX_STATS_PRI_ENTRIES(tx_packets), +}; + +static const struct { + long offset; + char string[ETH_GSTRING_LEN]; +} bnge_port_stats_arr[] =3D { + BNGE_RX_PORT_STATS_ENTRY(good_vlan_frames), + BNGE_RX_PORT_STATS_ENTRY(mtu_err_frames), + BNGE_RX_PORT_STATS_ENTRY(tagged_frames), + BNGE_RX_PORT_STATS_ENTRY(double_tagged_frames), + BNGE_RX_PORT_STATS_ENTRY(pfc_ena_frames_pri0), + BNGE_RX_PORT_STATS_ENTRY(pfc_ena_frames_pri1), + BNGE_RX_PORT_STATS_ENTRY(pfc_ena_frames_pri2), + BNGE_RX_PORT_STATS_ENTRY(pfc_ena_frames_pri3), + BNGE_RX_PORT_STATS_ENTRY(pfc_ena_frames_pri4), + BNGE_RX_PORT_STATS_ENTRY(pfc_ena_frames_pri5), + BNGE_RX_PORT_STATS_ENTRY(pfc_ena_frames_pri6), + BNGE_RX_PORT_STATS_ENTRY(pfc_ena_frames_pri7), + BNGE_RX_PORT_STATS_ENTRY(eee_lpi_events), + BNGE_RX_PORT_STATS_ENTRY(eee_lpi_duration), + BNGE_RX_PORT_STATS_ENTRY(runt_bytes), + BNGE_RX_PORT_STATS_ENTRY(runt_frames), + + BNGE_TX_PORT_STATS_ENTRY(good_vlan_frames), + BNGE_TX_PORT_STATS_ENTRY(jabber_frames), + BNGE_TX_PORT_STATS_ENTRY(fcs_err_frames), + BNGE_TX_PORT_STATS_ENTRY(pfc_ena_frames_pri0), + BNGE_TX_PORT_STATS_ENTRY(pfc_ena_frames_pri1), + BNGE_TX_PORT_STATS_ENTRY(pfc_ena_frames_pri2), + BNGE_TX_PORT_STATS_ENTRY(pfc_ena_frames_pri3), + BNGE_TX_PORT_STATS_ENTRY(pfc_ena_frames_pri4), + BNGE_TX_PORT_STATS_ENTRY(pfc_ena_frames_pri5), + BNGE_TX_PORT_STATS_ENTRY(pfc_ena_frames_pri6), + BNGE_TX_PORT_STATS_ENTRY(pfc_ena_frames_pri7), + BNGE_TX_PORT_STATS_ENTRY(eee_lpi_events), + BNGE_TX_PORT_STATS_ENTRY(eee_lpi_duration), + BNGE_TX_PORT_STATS_ENTRY(xthol_frames), +}; + +static const struct { + long offset; + char string[ETH_GSTRING_LEN]; +} bnge_port_stats_ext_arr[] =3D { + BNGE_RX_STATS_EXT_ENTRY(continuous_pause_events), + BNGE_RX_STATS_EXT_ENTRY(resume_pause_events), + BNGE_RX_STATS_EXT_ENTRY(continuous_roce_pause_events), + BNGE_RX_STATS_EXT_ENTRY(resume_roce_pause_events), + BNGE_RX_STATS_EXT_COS_ENTRIES, + BNGE_RX_STATS_EXT_PFC_ENTRIES, + BNGE_RX_STATS_EXT_ENTRY(rx_bits), + BNGE_RX_STATS_EXT_ENTRY(rx_buffer_passed_threshold), + BNGE_RX_STATS_EXT_DISCARD_COS_ENTRIES, + BNGE_RX_STATS_EXT_ENTRY(rx_filter_miss), +}; + +static int bnge_get_num_tpa_ring_stats(struct bnge_dev *bd) +{ + if (BNGE_SUPPORTS_TPA(bd)) + return BNGE_NUM_TPA_RING_STATS; + return 0; +} + +#define BNGE_NUM_PORT_STATS ARRAY_SIZE(bnge_port_stats_arr) +#define BNGE_NUM_STATS_PRI \ + (ARRAY_SIZE(bnge_rx_bytes_pri_arr) + \ + ARRAY_SIZE(bnge_rx_pkts_pri_arr) + \ + ARRAY_SIZE(bnge_tx_bytes_pri_arr) + \ + ARRAY_SIZE(bnge_tx_pkts_pri_arr)) + +static int bnge_get_num_ring_stats(struct bnge_dev *bd) +{ + int rx, tx; + + rx =3D NUM_RING_Q_HW_STATS + bnge_get_num_tpa_ring_stats(bd); + tx =3D NUM_RING_Q_HW_STATS; + return rx * bd->rx_nr_rings + + tx * bd->tx_nr_rings_per_tc; +} + +static u32 bnge_get_num_stats(struct bnge_net *bn) +{ + u32 num_stats =3D bnge_get_num_ring_stats(bn->bd); + u32 len; + + if (bn->flags & BNGE_FLAG_PORT_STATS) + num_stats +=3D BNGE_NUM_PORT_STATS; + + if (bn->flags & BNGE_FLAG_PORT_STATS_EXT) { + len =3D min_t(int, bn->fw_rx_stats_ext_size, + ARRAY_SIZE(bnge_port_stats_ext_arr)); + num_stats +=3D len; + len =3D min_t(int, bn->fw_tx_stats_ext_size, + ARRAY_SIZE(bnge_tx_port_stats_ext_arr)); + num_stats +=3D len; + if (bn->pri2cos_valid) + num_stats +=3D BNGE_NUM_STATS_PRI; + } + + return num_stats; +} + static void bnge_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { @@ -42,6 +307,219 @@ static void bnge_get_drvinfo(struct net_device *dev, strscpy(info->bus_info, pci_name(bd->pdev), sizeof(info->bus_info)); } =20 +static int bnge_get_sset_count(struct net_device *dev, int sset) +{ + struct bnge_net *bn =3D netdev_priv(dev); + + switch (sset) { + case ETH_SS_STATS: + return bnge_get_num_stats(bn); + default: + return -EOPNOTSUPP; + } +} + +static bool is_rx_ring(struct bnge_dev *bd, u16 ring_num) +{ + return ring_num < bd->rx_nr_rings; +} + +static bool is_tx_ring(struct bnge_dev *bd, u16 ring_num) +{ + u16 tx_base =3D 0; + + if (!(bd->flags & BNGE_EN_SHARED_CHNL)) + tx_base =3D bd->rx_nr_rings; + + return ring_num >=3D tx_base && ring_num < (tx_base + bd->tx_nr_rings); +} + +static void bnge_get_ethtool_stats(struct net_device *dev, + struct ethtool_stats *stats, u64 *buf) +{ + struct bnge_net *bn =3D netdev_priv(dev); + struct bnge_dev *bd =3D bn->bd; + u32 tpa_stats; + u32 i, j =3D 0; + + if (!bn->bnapi) { + j +=3D bnge_get_num_ring_stats(bd); + goto skip_ring_stats; + } + + tpa_stats =3D bnge_get_num_tpa_ring_stats(bd); + for (i =3D 0; i < bd->nq_nr_rings; i++) { + struct bnge_napi *bnapi =3D bn->bnapi[i]; + struct bnge_nq_ring_info *nqr; + u64 *sw_stats; + int k; + + nqr =3D &bnapi->nq_ring; + sw_stats =3D nqr->stats.sw_stats; + + if (is_rx_ring(bd, i)) { + buf[j++] =3D BNGE_GET_RING_STATS64(sw_stats, rx_ucast_pkts); + buf[j++] =3D BNGE_GET_RING_STATS64(sw_stats, rx_mcast_pkts); + buf[j++] =3D BNGE_GET_RING_STATS64(sw_stats, rx_bcast_pkts); + buf[j++] =3D BNGE_GET_RING_STATS64(sw_stats, rx_ucast_bytes); + buf[j++] =3D BNGE_GET_RING_STATS64(sw_stats, rx_mcast_bytes); + buf[j++] =3D BNGE_GET_RING_STATS64(sw_stats, rx_bcast_bytes); + } + if (is_tx_ring(bd, i)) { + buf[j++] =3D BNGE_GET_RING_STATS64(sw_stats, tx_ucast_pkts); + buf[j++] =3D BNGE_GET_RING_STATS64(sw_stats, tx_mcast_pkts); + buf[j++] =3D BNGE_GET_RING_STATS64(sw_stats, tx_bcast_pkts); + buf[j++] =3D BNGE_GET_RING_STATS64(sw_stats, tx_ucast_bytes); + buf[j++] =3D BNGE_GET_RING_STATS64(sw_stats, tx_mcast_bytes); + buf[j++] =3D BNGE_GET_RING_STATS64(sw_stats, tx_bcast_bytes); + } + if (!tpa_stats || !is_rx_ring(bd, i)) + continue; + + k =3D BNGE_NUM_RX_RING_STATS + BNGE_NUM_TX_RING_STATS; + for (; k < BNGE_NUM_RX_RING_STATS + BNGE_NUM_TX_RING_STATS + + tpa_stats; j++, k++) + buf[j] =3D sw_stats[k]; + } + +skip_ring_stats: + if (bn->flags & BNGE_FLAG_PORT_STATS) { + u64 *port_stats =3D bn->port_stats.sw_stats; + + for (i =3D 0; i < BNGE_NUM_PORT_STATS; i++, j++) + buf[j] =3D *(port_stats + bnge_port_stats_arr[i].offset); + } + if (bn->flags & BNGE_FLAG_PORT_STATS_EXT) { + u64 *rx_port_stats_ext =3D bn->rx_port_stats_ext.sw_stats; + u64 *tx_port_stats_ext =3D bn->tx_port_stats_ext.sw_stats; + u32 len; + + len =3D min_t(u32, bn->fw_rx_stats_ext_size, + ARRAY_SIZE(bnge_port_stats_ext_arr)); + for (i =3D 0; i < len; i++, j++) { + buf[j] =3D *(rx_port_stats_ext + + bnge_port_stats_ext_arr[i].offset); + } + len =3D min_t(u32, bn->fw_tx_stats_ext_size, + ARRAY_SIZE(bnge_tx_port_stats_ext_arr)); + for (i =3D 0; i < len; i++, j++) { + buf[j] =3D *(tx_port_stats_ext + + bnge_tx_port_stats_ext_arr[i].offset); + } + if (bn->pri2cos_valid) { + for (i =3D 0; i < 8; i++, j++) { + long n =3D bnge_rx_bytes_pri_arr[i].base_off + + bn->pri2cos_idx[i]; + + buf[j] =3D *(rx_port_stats_ext + n); + } + for (i =3D 0; i < 8; i++, j++) { + long n =3D bnge_rx_pkts_pri_arr[i].base_off + + bn->pri2cos_idx[i]; + + buf[j] =3D *(rx_port_stats_ext + n); + } + for (i =3D 0; i < 8; i++, j++) { + long n =3D bnge_tx_bytes_pri_arr[i].base_off + + bn->pri2cos_idx[i]; + + buf[j] =3D *(tx_port_stats_ext + n); + } + for (i =3D 0; i < 8; i++, j++) { + long n =3D bnge_tx_pkts_pri_arr[i].base_off + + bn->pri2cos_idx[i]; + + buf[j] =3D *(tx_port_stats_ext + n); + } + } + } +} + +static void bnge_get_strings(struct net_device *dev, u32 stringset, u8 *bu= f) +{ + struct bnge_net *bn =3D netdev_priv(dev); + struct bnge_dev *bd =3D bn->bd; + u32 i, j, num_str; + const char *str; + + switch (stringset) { + case ETH_SS_STATS: + for (i =3D 0; i < bd->nq_nr_rings; i++) { + if (is_rx_ring(bd, i)) + for (j =3D 0; j < NUM_RING_Q_HW_STATS; j++) { + str =3D bnge_ring_q_stats_str[j]; + ethtool_sprintf(&buf, "rxq%d_%s", i, + str); + } + if (is_tx_ring(bd, i)) + for (j =3D 0; j < NUM_RING_Q_HW_STATS; j++) { + str =3D bnge_ring_q_stats_str[j]; + ethtool_sprintf(&buf, "txq%d_%s", i, + str); + } + num_str =3D bnge_get_num_tpa_ring_stats(bd); + if (!num_str || !is_rx_ring(bd, i)) + continue; + + for (j =3D 0; j < num_str; j++) { + str =3D bnge_ring_tpa2_stats_str[j]; + ethtool_sprintf(&buf, "rxq%d_%s", i, str); + } + } + + if (bn->flags & BNGE_FLAG_PORT_STATS) + for (i =3D 0; i < BNGE_NUM_PORT_STATS; i++) { + str =3D bnge_port_stats_arr[i].string; + ethtool_puts(&buf, str); + } + + if (bn->flags & BNGE_FLAG_PORT_STATS_EXT) { + u32 len; + + len =3D min_t(u32, bn->fw_rx_stats_ext_size, + ARRAY_SIZE(bnge_port_stats_ext_arr)); + for (i =3D 0; i < len; i++) { + str =3D bnge_port_stats_ext_arr[i].string; + ethtool_puts(&buf, str); + } + + len =3D min_t(u32, bn->fw_tx_stats_ext_size, + ARRAY_SIZE(bnge_tx_port_stats_ext_arr)); + for (i =3D 0; i < len; i++) { + str =3D bnge_tx_port_stats_ext_arr[i].string; + ethtool_puts(&buf, str); + } + + if (bn->pri2cos_valid) { + for (i =3D 0; i < 8; i++) { + str =3D bnge_rx_bytes_pri_arr[i].string; + ethtool_puts(&buf, str); + } + + for (i =3D 0; i < 8; i++) { + str =3D bnge_rx_pkts_pri_arr[i].string; + ethtool_puts(&buf, str); + } + + for (i =3D 0; i < 8; i++) { + str =3D bnge_tx_bytes_pri_arr[i].string; + ethtool_puts(&buf, str); + } + + for (i =3D 0; i < 8; i++) { + str =3D bnge_tx_pkts_pri_arr[i].string; + ethtool_puts(&buf, str); + } + } + } + break; + default: + netdev_err(bd->netdev, "%s invalid request %x\n", + __func__, stringset); + break; + } +} + static void bnge_get_eth_phy_stats(struct net_device *dev, struct ethtool_eth_phy_stats *phy_stats) { @@ -262,6 +740,9 @@ static const struct ethtool_ops bnge_ethtool_ops =3D { .nway_reset =3D bnge_nway_reset, .get_pauseparam =3D bnge_get_pauseparam, .set_pauseparam =3D bnge_set_pauseparam, + .get_sset_count =3D bnge_get_sset_count, + .get_strings =3D bnge_get_strings, + .get_ethtool_stats =3D bnge_get_ethtool_stats, .get_eth_phy_stats =3D bnge_get_eth_phy_stats, .get_eth_mac_stats =3D bnge_get_eth_mac_stats, .get_eth_ctrl_stats =3D bnge_get_eth_ctrl_stats, --=20 2.47.1