From patchwork Wed Nov 23 20:31:32 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Horatiu Vultur X-Patchwork-Id: 13054248 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 5BA07C4332F for ; Wed, 23 Nov 2022 20:31:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239178AbiKWUb2 (ORCPT ); Wed, 23 Nov 2022 15:31:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55000 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238440AbiKWUbH (ORCPT ); Wed, 23 Nov 2022 15:31:07 -0500 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 494AABE24D; Wed, 23 Nov 2022 12:27:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1669235238; x=1700771238; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=NZt7INHr2d7Hd0MIy/SXhj1Tvl6whRgvUFOvpNmOXV8=; b=1XJajZn6sk0/abwrqjxesFhfxaBEGX6B1iSrQKsS1mDANCupmhAsUeAy fBpE1wwJTxcHQPk+ld1e60HDQSKxPVBJ/Z48YHKniCVEolukqSKj9qM56 1rrXhGcnkblAiYiwfD4Yb6bNkXzbRYJ3Tl3jRuoFmwKd4LRKU+ZoFu+bi 9d0bj91IW8A2W2b7VLRHLEPEHCJhL3VDYnGblX3kTE6L+czyODszgsbhw C0GpSJt7vuLY+lE4qVBq42Ss8cJ+cfE/mp+tKxMa4mKA9Vcx1MafVP3Ua zwddKqLl3J4TozHbUXz44r79SgPxKTO1BuSLz7UJGioHSxp3MaoQ1aC35 g==; X-IronPort-AV: E=Sophos;i="5.96,187,1665471600"; d="scan'208";a="124842447" Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa6.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 23 Nov 2022 13:27:09 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) 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; Wed, 23 Nov 2022 13:27:05 -0700 Received: from soft-dev3-1.microsemi.net (10.10.115.15) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2507.12 via Frontend Transport; Wed, 23 Nov 2022 13:27:03 -0700 From: Horatiu Vultur To: , , CC: , , , , , , , , , , , Horatiu Vultur Subject: [PATCH net-next v5 0/7] net: lan966x: Extend xdp support Date: Wed, 23 Nov 2022 21:31:32 +0100 Message-ID: <20221123203139.3828548-1-horatiu.vultur@microchip.com> X-Mailer: git-send-email 2.38.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Extend the current support of XDP in lan966x with the action XDP_TX and XDP_REDIRECT. The first patches just prepare the things such that it would be easier to add XDP_TX and XDP_REDIRECT actions. Like adding XDP_PACKET_HEADROOM, introduce helper functions, use the correct dma_dir for the page pool The last 2 patches introduce the XDP actions XDP_TX and XDP_REDIRECT. v4->v5: - add iterator declaration inside for loops - move the scope of port inside the function lan966x_fdma_rx_alloc_page_pool - create union for skb and xdpf inside struct lan966x_tx_dcb_buf v3->v4: - use napi_consume_skb instead of dev_kfree_skb_any - arrange members in struct lan966x_tx_dcb_buf not to have holes - fix when xdp program is added the check for determining if page pool needs to be recreated was wrong - change type for len in lan966x_tx_dcb_buf to u32 v2->v3: - make sure to update rxq memory model - update the page pool direction if there is any xdp program - in case of action XDP_TX give back to reuse the page - in case of action XDP_REDIRECT, remap the frame and make sure to unmap it when is transmitted. v1->v2: - use skb_reserve of using skb_put and skb_pull - make sure that data_len doesn't include XDP_PACKET_HEADROOM Horatiu Vultur (7): net: lan966x: Add XDP_PACKET_HEADROOM net: lan966x: Introduce helper functions net: lan966x: Add len field to lan966x_tx_dcb_buf net: lan966x: Update rxq memory model net: lan966x: Update dma_dir of page_pool_params net: lan966x: Add support for XDP_TX net: lan966x: Add support for XDP_REDIRECT .../ethernet/microchip/lan966x/lan966x_fdma.c | 264 +++++++++++++++--- .../ethernet/microchip/lan966x/lan966x_main.c | 5 +- .../ethernet/microchip/lan966x/lan966x_main.h | 30 +- .../ethernet/microchip/lan966x/lan966x_xdp.c | 66 ++++- 4 files changed, 312 insertions(+), 53 deletions(-)