From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f227.google.com (mail-pg1-f227.google.com [209.85.215.227]) (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 6E64A411634 for ; Thu, 5 Mar 2026 20:01:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.227 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772740889; cv=none; b=ie1jwLWOXR/0wL+H884YNkNXTUWXTqC+jXJ1LTzf8XCXpz4nvNNmRQtsWXcl3RaPMPoO3up19+wHqMKBniM79tH/kHdLBd21C3WVLT19e03jAl2cb9NsPY/fblWdtDr7vAwnRL4q5CEvDmNy4noYWcf57dpKmj6NBtOV8vPYW8w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772740889; c=relaxed/simple; bh=F/91X4VZ+ga6gzdEz0qYSU+3guoo3ch024HLxRgaIz0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=H/0FAHehjosHmTImiHgcboOkKYK7UL1kBL/5wUqxe3tGSN/jbjiuVJYvxl6O504/dwUkb5MCN2e/CruD7JuBe9vDXGHk794A+e+aSUBECUOfW8sc5Zy3KZob2ZlE8+/yAh5Xrpz1uDShWslHtksuuKqHei8YGTgqVvSKmRWs6PA= 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=S9FrZjME; arc=none smtp.client-ip=209.85.215.227 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="S9FrZjME" Received: by mail-pg1-f227.google.com with SMTP id 41be03b00d2f7-c70bfef17a4so4984074a12.2 for ; Thu, 05 Mar 2026 12:01:28 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1772740888; x=1773345688; 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=sq0rYdeXQuQxZhsFVTUCSXDy8nEGhlJbd6WgsX3VS+0=; b=tI5PL6vMaEbAlKFDdJH4kQIsJ5jLYNuUjqg9DVH/UxhtT3KkZnebAgD4ubGbozW/CQ DewVpAVBMLl87qzI6Etz/WYMBYdJXeD5FIAPURrTkHiNSRIrGfmgv6F29h/iQOpXBjzn 1gLddQlCtlK16N4+sxUIh6C8yAJGRfNn98dmnpPgzd72oqTjr5m5EubY3mPOBfHpISMR xEV4/7tPpswaABcprcGirWEhj/f2t+LuDnd7K4IlspKcuiCaneGErmQNljW7MH0JGluV rPjqzIXgwirxdPuwBvagQVX2VoOAUCstKNq28fqLlwYcHlXslq29jxnSwqX/qPPDgL/z YByw== X-Gm-Message-State: AOJu0YzP1kS+jzTcqQRuEEAhRLk0c8gwT0ApZWUWpxkDLXFsqQaZEN3j OR31hGh4kjcpQWGMhtTB4VJ3zouILJgpvWY7P8xIiMJgUKGJi0BKh9LpuTJFijEswBWH27bwU86 /tMfhM/wCraw7VVhJgviD+YN5X7cnl/LlqKqqF5fBkNrmCeDrpC7cWekUCTXGhd1/xbuAwsTIcC wIi7SIMxB/kqv1cfYWBaFKbvBKRFBwVb8Xq7qANWMgYBpQs4VUTg9JmhwiRdP7XwyUC8b2r2vGS tsZjg63dgy9SaXxFQ== X-Gm-Gg: ATEYQzwTBtM2ZDuT4HqXK5hiuJZAWS6uK9C8W71J5nacJmJA/y2V+mLmqJnSrofz8qr Kmoq6EW8oeeevgntthZVOqMxE6Z01XQKKY6FcoRljg1R2weJvKwM09pVNSKbIKI0egH4jm6unTb Gq4DiRGlNS45RUSMJi25qt64PVYyFltp4pusBqsy23CBQCjSWiJ2pd7YkINzv6Kwch2vN/7iSgo FQLuqe/C1i/HdKKv9sbcrPQ3WtbOWQMzB8rQSB7cc+GI9f4CK5HSNQ3IbjMuEsrMC3s5Q3KXBm5 1tgcpNv+z1M79S2cBPqetpOziyqENfKkFXykg++7KH63en+DGG1bGLCfMdN2G1Ac5EtnCeKlMqU FOn7T3TdM9CB6fJzMuhzRMx8+Ecd0zpl/xsM95zUXomdYJeX+CQS0zbDtL1P2tgb/nWgs5rEY6g b+7nNUhm87chyITlRkJV0G6vPFQr0gCDviF+3mX6fzxJqLTm6Gui2RmKmaqpYxB76oEA== X-Received: by 2002:a17:90b:3d07:b0:356:3ba2:122c with SMTP id 98e67ed59e1d1-359a69c2243mr6644793a91.9.1772740887512; Thu, 05 Mar 2026 12:01:27 -0800 (PST) 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 98e67ed59e1d1-359b2d3cbd0sm341358a91.2.2026.03.05.12.01.27 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Thu, 05 Mar 2026 12:01:27 -0800 (PST) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-pl1-f199.google.com with SMTP id d9443c01a7336-2ae42659a39so336687715ad.1 for ; Thu, 05 Mar 2026 12:01:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1772740885; x=1773345685; 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=sq0rYdeXQuQxZhsFVTUCSXDy8nEGhlJbd6WgsX3VS+0=; b=S9FrZjMERKK4cPNRGUic5mEPejFAgNvSYWuvnktYPL87i1Y4ZJdZ0YTh/7ZP5tdBpF BuxZdaY5+BiHtZOIBfMLVrNNUnVENS7igkmsR9a6ObRLPLIt71Td6CWheoOk8TzmGKiG HrjEArqIVpq1hkYcXMsHkoYkDfQtlTWD86Ll0= X-Received: by 2002:a17:903:2f8b:b0:2ae:6192:8d8b with SMTP id d9443c01a7336-2ae6a9ed255mr63153475ad.4.1772740885219; Thu, 05 Mar 2026 12:01:25 -0800 (PST) X-Received: by 2002:a17:903:2f8b:b0:2ae:6192:8d8b with SMTP id d9443c01a7336-2ae6a9ed255mr63153045ad.4.1772740884571; Thu, 05 Mar 2026 12:01:24 -0800 (PST) Received: from localhost.localdomain ([192.19.203.250]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2adfb69ef1csm247398505ad.53.2026.03.05.12.01.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Mar 2026 12:01:24 -0800 (PST) From: Bhargava Marreddy 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, vikas.gupta@broadcom.com, Bhargava Marreddy , Rajashekar Hudumula , Ajit Kumar Khaparde Subject: [PATCH net-next v4 05/10] bng_en: add support for link async events Date: Fri, 6 Mar 2026 01:30:12 +0530 Message-ID: <20260305200018.111728-6-bhargava.marreddy@broadcom.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260305200018.111728-1-bhargava.marreddy@broadcom.com> References: <20260305200018.111728-1-bhargava.marreddy@broadcom.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e 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 Reviewed-by: Rajashekar Hudumula Reviewed-by: Ajit Kumar Khaparde --- .../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 | 19 ++++++++ .../net/ethernet/broadcom/bnge/bnge_txrx.c | 35 ++++++++++++-- 5 files changed, 117 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.c b/drivers/net/ethernet/broadcom/bnge/bnge_hwrm_lib.c index f7570eb89b8..040b73ee409 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" +static const u16 bnge_async_events_arr[] = { + 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) int bnge_hwrm_func_drv_rgtr(struct bnge_dev *bd) { + DECLARE_BITMAP(async_events_bmap, 256); + u32 *events = (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; rc = 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 = cpu_to_le16(DRV_VER_MIN); req->ver_upd = cpu_to_le16(DRV_VER_UPD); + memset(async_events_bmap, 0, sizeof(async_events_bmap)); + for (i = 0; i < ARRAY_SIZE(bnge_async_events_arr); i++) + __set_bit(bnge_async_events_arr[i], async_events_bmap); + for (i = 0; i < ARRAY_SIZE(req->async_event_fwd); i++) + req->async_event_fwd[i] |= cpu_to_le32(events[i]); + resp = bnge_hwrm_req_hold(bd, req); rc = bnge_hwrm_req_send(bd, req); if (!rc) { diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_link.c b/drivers/net/ethernet/broadcom/bnge/bnge_link.c index 09eaece1806..dcdce594b03 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 = link_info->auto_pam4_link_speeds; } +static u16 bnge_get_force_speed(struct bnge_net *bn) +{ + struct bnge_ethtool_link_info *elink_info = &bn->eth_link_info; + struct bnge_link_info *link_info; + struct bnge_dev *bd = bn->bd; + + link_info = &bd->link_info; + + if (bd->phy_flags & BNGE_PHY_FL_SPEEDS2) + return link_info->force_link_speed2; + if (elink_info->req_signal_mode == 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 = &bn->eth_link_info; @@ -1251,3 +1266,35 @@ 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 = &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 = bnge_get_force_speed(bn); + u32 speed = bnge_fw_to_ethtool_speed(fw_speed); + + if (speed != 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/ethernet/broadcom/bnge/bnge_link.h index 12be5cab579..bdcb75a941c 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 1c36f7dd02f..e02c0ef03e4 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c @@ -160,6 +160,25 @@ static void bnge_sp_task(struct work_struct *work) } } + if (test_and_clear_bit(BNGE_LINK_CHNG_SP_EVENT, &bn->sp_event)) { + int rc; + + netdev_lock(bn->netdev); + if (test_and_clear_bit(BNGE_LINK_SPEED_CHNG_SP_EVENT, + &bn->sp_event)) + bnge_hwrm_phy_qcaps(bd); + + rc = 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); + } + /* Ensure all sp_task work is done before clearing the state */ smp_mb__before_atomic(); clear_bit(BNGE_STATE_IN_SP_TASK, &bn->state); diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_txrx.c b/drivers/net/ethernet/broadcom/bnge/bnge_txrx.c index a2616f03755..88f9cf1db30 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 *bn, struct bnge_napi *bnapi, } } +static void bnge_async_event_process(struct bnge_net *bn, + struct hwrm_async_event_cmpl *cmpl) +{ + u16 event_id = le16_to_cpu(cmpl->event_id); + u32 data1 = le32_to_cpu(cmpl->event_data1); + u32 data2 = 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_id, dev_err(bd->dev, "Invalid hwrm seq id %d\n", seq_id); } -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 = (struct hwrm_cmpl *)txcmp; u16 cmpl_type = TX_CMP_TYPE(txcmp), seq_id; @@ -1154,10 +1177,14 @@ static int bnge_hwrm_handler(struct bnge_dev *bd, struct tx_cmp *txcmp) switch (cmpl_type) { case CMPL_BASE_TYPE_HWRM_DONE: seq_id = 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; 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, struct bnge_cp_ring_info *cpr, } else if (unlikely(cmp_type == CMPL_BASE_TYPE_HWRM_DONE || cmp_type == CMPL_BASE_TYPE_HWRM_FWD_REQ || cmp_type == CMPL_BA_TY_HWRM_ASY_EVT)) { - bnge_hwrm_handler(bn->bd, txcmp); + bnge_hwrm_handler(bn, txcmp); } raw_cons = NEXT_RAW_CMP(raw_cons); @@ -1355,7 +1382,7 @@ int bnge_napi_poll(struct napi_struct *napi, int budget) budget - work_done); nqr->has_more_work |= cpr->has_more_work; } else { - bnge_hwrm_handler(bn->bd, (struct tx_cmp *)nqcmp); + bnge_hwrm_handler(bn, (struct tx_cmp *)nqcmp); } raw_cons = NEXT_RAW_CMP(raw_cons); } -- 2.47.3