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[144.49.247.22]) by smtp-relay.gmail.com with ESMTPS id d9443c01a7336-2cf8f2e5f0asm8793975ad.41.2026.07.24.07.30.48 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 24 Jul 2026 07:30:49 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-pl1-f200.google.com with SMTP id d9443c01a7336-2cee894b3d8so8461695ad.2 for ; Fri, 24 Jul 2026 07:30:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1784903447; x=1785508247; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=fRvfd4XDLRXG+hTzuT9EEdM6zfTC4YymdTujDGLFF/E=; b=PNW7SGPWpTRuLBMX9MyuSDLA3cvPatz3mnx0IZ3WqyVOPea0nqF0Hk/mx7xUVgllmV s+tKzmrR5phX0i/PR5jYjlQHd/AbYj00VcMJ3oMn86rV9oezI0vXWPv9sPUiP4SDFvTi LgzMUCGnP4YhwmhKGk90/yPf5QAxGUEVFXFZU= X-Forwarded-Encrypted: i=1; AHgh+RoA/eCZQhRBuMOCFHDvyOnpCZ7Vw4fhSTuEWMX+fsroGQz5cmJIIG2oFvW1E6bwkFDwUsRjUCDVCd1ybvI=@vger.kernel.org X-Received: by 2002:a05:6a21:730a:b0:398:7ed3:a001 with SMTP id adf61e73a8af0-3c44afb1ab6mr8101941637.2.1784903447141; Fri, 24 Jul 2026 07:30:47 -0700 (PDT) X-Received: by 2002:a05:6a21:730a:b0:398:7ed3:a001 with SMTP id adf61e73a8af0-3c44afb1ab6mr8101882637.2.1784903446449; Fri, 24 Jul 2026 07:30:46 -0700 (PDT) Received: from localhost.localdomain ([192.19.203.250]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-314bc5cb670sm259643eec.31.2026.07.24.07.30.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Jul 2026 07:30:46 -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, bhargava.marreddy@broadcom.com, rahul-rg.gupta@broadcom.com, vsrama-krishna.nemani@broadcom.com, rajashekar.hudumula@broadcom.com, dharmender.garg@broadcom.com, ajit.khaparde@broadcom.com, Vikas Gupta Subject: [PATCH net-next 4/4] bnge: send hwrm for interface down/up transitions Date: Fri, 24 Jul 2026 19:59:54 +0530 Message-ID: <20260724142954.3101980-5-vikas.gupta@broadcom.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20260724142954.3101980-1-vikas.gupta@broadcom.com> References: <20260724142954.3101980-1-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: 8bit X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e Firmware expects HWRM_FUNC_DRV_IF_CHANGE on interface down/up transitions to coordinate resource management. Add bnge_hwrm_if_change() to send this notification. Signed-off-by: Vikas Gupta Reviewed-by: Dharmender Garg Reviewed-by: Rahul Gupta --- .../net/ethernet/broadcom/bnge/bnge_netdev.c | 32 +++++++++++++++++-- .../net/ethernet/broadcom/bnge/bnge_netdev.h | 2 ++ 2 files changed, 32 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c index e67536a8c430..220bdcced0db 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c +++ b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c @@ -20,6 +20,7 @@ #include #include "bnge.h" +#include "bnge_hwrm.h" #include "bnge_hwrm_lib.h" #include "bnge_ethtool.h" #include "bnge_rmem.h" @@ -2861,6 +2862,24 @@ static void bnge_tx_enable(struct bnge_net *bn) netif_carrier_on(bn->netdev); } +static int bnge_hwrm_if_change(struct bnge_dev *bd, bool up) +{ + struct hwrm_func_drv_if_change_input *req; + int rc; + + if (!(bd->fw_cap & BNGE_FW_CAP_IF_CHANGE)) + return 0; + + rc = bnge_hwrm_req_init(bd, req, HWRM_FUNC_DRV_IF_CHANGE); + if (rc) + return rc; + + if (up) + req->flags = cpu_to_le32(FUNC_DRV_IF_CHANGE_REQ_FLAGS_UP); + + return bnge_hwrm_req_send(bd, req); +} + static int bnge_open_core(struct bnge_net *bn) { struct bnge_dev *bd = bn->bd; @@ -2868,16 +2887,22 @@ static int bnge_open_core(struct bnge_net *bn) netif_carrier_off(bn->netdev); + rc = bnge_hwrm_if_change(bd, true); + if (rc) { + netdev_err(bn->netdev, "bnge_hwrm_if_change err: %d\n", rc); + return rc; + } + rc = bnge_reserve_rings(bd); if (rc) { netdev_err(bn->netdev, "bnge_reserve_rings err: %d\n", rc); - return rc; + goto err_if_change; } rc = bnge_alloc_core(bn); if (rc) { netdev_err(bn->netdev, "bnge_alloc_core err: %d\n", rc); - return rc; + goto err_if_change; } bnge_init_napi(bn); @@ -2924,6 +2949,8 @@ static int bnge_open_core(struct bnge_net *bn) err_del_napi: bnge_del_napi(bn); bnge_free_core(bn); +err_if_change: + bnge_hwrm_if_change(bd, false); return rc; } @@ -3154,6 +3181,7 @@ static int bnge_close(struct net_device *dev) bnge_close_core(bn); bnge_hwrm_shutdown_link(bn->bd); + bnge_hwrm_if_change(bn->bd, false); bn->sp_event = 0; return 0; diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h index d177919c2e11..a1a939496ebd 100644 --- a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h +++ b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.h @@ -275,6 +275,8 @@ enum bnge_net_flag { BNGE_FLAG_PORT_STATS_EXT = BIT(1), }; +#define BNGE_FW_IF_RETRY 10 + enum bnge_sp_event { BNGE_LINK_CHNG_SP_EVENT, BNGE_LINK_SPEED_CHNG_SP_EVENT, -- 2.47.1