From patchwork Wed Sep 7 06:21:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Raju Lakkaraju - I30499 X-Patchwork-Id: 12968473 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 87E5EC38145 for ; Wed, 7 Sep 2022 06:34:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229684AbiIGGeG (ORCPT ); Wed, 7 Sep 2022 02:34:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40328 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229619AbiIGGeD (ORCPT ); Wed, 7 Sep 2022 02:34:03 -0400 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DC9859F1A0; Tue, 6 Sep 2022 23:34:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1662532441; x=1694068441; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=xCcg4tihGJnKx+xhtTFi1hkhYAk2lhJCKaXNULXHBMM=; b=cF9LZ42kIi62KXxmS+H/+/ipM3IRTAbTTqT6XlygrfgnhhTNSPaal1uM Efc/gn+JolkLhslT1dACfmLLQpOIjnxgB+782lIiOKSW9U/DMQyKIngpu cFIgV0/r4aMzPA2G9xzlyjMoqTk9AVx9ZlL98Hg7lPOHQrTFrNi9EW5dw yf8q3oa9DnD3ptVrbZfAK4u6kW8MX4xq09mR5I5ZWe2XpY4Io3a3KHwOx 2J14FA4YZt+VTVCJGDeSfQJcY1xkr1g7viO2Mbs6XwCrly4EE7vdfI3HK q8+sTav/H2cEtJD2IdYAXxbxJf6tYWxuVepc51k0RVKPfyANtRmit5kay A==; X-IronPort-AV: E=Sophos;i="5.93,295,1654585200"; d="scan'208";a="172707330" Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa4.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 06 Sep 2022 23:34:01 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.12; Tue, 6 Sep 2022 23:34:00 -0700 Received: from localhost.localdomain (10.10.115.15) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2507.12 via Frontend Transport; Tue, 6 Sep 2022 23:33:57 -0700 From: Raju Lakkaraju To: CC: , , , , , Subject: [PATCH net-next V1 2/2] net: lan743x: Add support for Rx IP & TCP checksum offload Date: Wed, 7 Sep 2022 11:51:27 +0530 Message-ID: <20220907062127.15473-3-Raju.Lakkaraju@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220907062127.15473-1-Raju.Lakkaraju@microchip.com> References: <20220907062127.15473-1-Raju.Lakkaraju@microchip.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Add Rx IP and TCP checksum offload Signed-off-by: Raju Lakkaraju Reported-by: kernel test robot --- drivers/net/ethernet/microchip/lan743x_main.c | 14 +++++++++++++- drivers/net/ethernet/microchip/lan743x_main.h | 5 +++++ 2 files changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c index 3f4e1ab63f8a..59441f06ff45 100644 --- a/drivers/net/ethernet/microchip/lan743x_main.c +++ b/drivers/net/ethernet/microchip/lan743x_main.c @@ -1585,6 +1585,9 @@ static void lan743x_rfe_set_multicast(struct lan743x_adapter *adapter) rfctl |= RFE_CTL_AM_; } + if (netdev->features & NETIF_F_RXCSUM) + rfctl |= RFE_CTL_IP_COE_ | RFE_CTL_TCP_UDP_COE_; + memset(hash_table, 0, DP_SEL_VHF_HASH_LEN * sizeof(u32)); if (netdev_mc_count(netdev)) { struct netdev_hw_addr *ha; @@ -2547,6 +2550,7 @@ static int lan743x_rx_process_buffer(struct lan743x_rx *rx) int result = RX_PROCESS_RESULT_NOTHING_TO_DO; struct lan743x_rx_buffer_info *buffer_info; int frame_length, buffer_length; + bool is_ice, is_tce, is_icsm; int extension_index = -1; bool is_last, is_first; struct sk_buff *skb; @@ -2593,6 +2597,9 @@ static int lan743x_rx_process_buffer(struct lan743x_rx *rx) frame_length = RX_DESC_DATA0_FRAME_LENGTH_GET_(le32_to_cpu(descriptor->data0)); buffer_length = buffer_info->buffer_length; + is_ice = descriptor->data1 & RX_DESC_DATA1_STATUS_ICE_; + is_tce = descriptor->data1 & RX_DESC_DATA1_STATUS_TCE_; + is_icsm = descriptor->data1 & RX_DESC_DATA1_STATUS_ICSM_; netdev_dbg(netdev, "%s%schunk: %d/%d", is_first ? "first " : " ", @@ -2661,6 +2668,10 @@ static int lan743x_rx_process_buffer(struct lan743x_rx *rx) if (is_last && rx->skb_head) { rx->skb_head->protocol = eth_type_trans(rx->skb_head, rx->adapter->netdev); + if (rx->adapter->netdev->features & NETIF_F_RXCSUM) { + if (!is_ice && !is_tce && !is_icsm) + skb->ip_summed = CHECKSUM_UNNECESSARY; + } netdev_dbg(netdev, "sending %d byte frame to OS", rx->skb_head->len); napi_gro_receive(&rx->napi, rx->skb_head); @@ -3383,7 +3394,8 @@ static int lan743x_pcidev_probe(struct pci_dev *pdev, adapter->netdev->netdev_ops = &lan743x_netdev_ops; adapter->netdev->ethtool_ops = &lan743x_ethtool_ops; - adapter->netdev->features = NETIF_F_SG | NETIF_F_TSO | NETIF_F_HW_CSUM; + adapter->netdev->features = NETIF_F_SG | NETIF_F_TSO | + NETIF_F_HW_CSUM | NETIF_F_RXCSUM; adapter->netdev->hw_features = adapter->netdev->features; /* carrier off reporting is important to ethtool even BEFORE open */ diff --git a/drivers/net/ethernet/microchip/lan743x_main.h b/drivers/net/ethernet/microchip/lan743x_main.h index 58eb7abf976b..67877d3b6dd9 100644 --- a/drivers/net/ethernet/microchip/lan743x_main.h +++ b/drivers/net/ethernet/microchip/lan743x_main.h @@ -266,6 +266,8 @@ #define RFE_ADDR_FILT_LO(x) (0x404 + (8 * (x))) #define RFE_CTL (0x508) +#define RFE_CTL_TCP_UDP_COE_ BIT(12) +#define RFE_CTL_IP_COE_ BIT(11) #define RFE_CTL_AB_ BIT(10) #define RFE_CTL_AM_ BIT(9) #define RFE_CTL_AU_ BIT(8) @@ -1121,6 +1123,9 @@ struct lan743x_tx_buffer_info { (((data0) & RX_DESC_DATA0_FRAME_LENGTH_MASK_) >> 16) #define RX_DESC_DATA0_EXT_ (0x00004000) #define RX_DESC_DATA0_BUF_LENGTH_MASK_ (0x00003FFF) +#define RX_DESC_DATA1_STATUS_ICE_ (0x00020000) +#define RX_DESC_DATA1_STATUS_TCE_ (0x00010000) +#define RX_DESC_DATA1_STATUS_ICSM_ (0x00000001) #define RX_DESC_DATA2_TS_NS_MASK_ (0x3FFFFFFF) #if ((NET_IP_ALIGN != 0) && (NET_IP_ALIGN != 2))