From patchwork Fri Feb 12 22:39:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Tony Nguyen X-Patchwork-Id: 382215 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CEFC8C433DB for ; Fri, 12 Feb 2021 22:45:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A2EEC64EAA for ; Fri, 12 Feb 2021 22:45:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232457AbhBLWpP (ORCPT ); Fri, 12 Feb 2021 17:45:15 -0500 Received: from mga02.intel.com ([134.134.136.20]:44260 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232373AbhBLWmP (ORCPT ); Fri, 12 Feb 2021 17:42:15 -0500 IronPort-SDR: kbnJ+9D8IZnS7RZKc9Nh14SG6UD3CT4c/gFv21Cvbx1WfK9bsJwYSNUUNGgwQVeuMpdeeJVdCp YdMk2XQ2bfWw== X-IronPort-AV: E=McAfee;i="6000,8403,9893"; a="169617158" X-IronPort-AV: E=Sophos;i="5.81,174,1610438400"; d="scan'208";a="169617158" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Feb 2021 14:39:00 -0800 IronPort-SDR: RmyMkJJqC98h18IpLciywTN0xUxfitoAH+aCpP9LIMuuMWlxXxd0mcTqdihmy6rNXT7AeOL15S dnm+QBHq4IaQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,174,1610438400"; d="scan'208";a="381885356" Received: from anguy11-desk2.jf.intel.com ([10.166.244.147]) by fmsmga008.fm.intel.com with ESMTP; 12 Feb 2021 14:39:00 -0800 From: Tony Nguyen To: davem@davemloft.net, kuba@kernel.org Cc: Maciej Fijalkowski , netdev@vger.kernel.org, sassmann@redhat.com, anthony.l.nguyen@intel.com, bjorn.topel@intel.com, magnus.karlsson@intel.com, Tony Brelinski Subject: [PATCH net-next 03/11] i40e: adjust i40e_is_non_eop Date: Fri, 12 Feb 2021 14:39:44 -0800 Message-Id: <20210212223952.1172568-4-anthony.l.nguyen@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210212223952.1172568-1-anthony.l.nguyen@intel.com> References: <20210212223952.1172568-1-anthony.l.nguyen@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Maciej Fijalkowski i40e_is_non_eop had a leftover comment and unused skb argument which was used for placing the skb onto rx_buf in case when current buffer was non-eop one. This is not relevant anymore as commit e72e56597ba1 ("i40e/i40evf: Moves skb from i40e_rx_buffer to i40e_ring") pulled the non-complete skb handling out of rx_bufs up to rx_ring. Therefore, let's adjust the function arguments that i40e_is_non_eop takes. Furthermore, since there is already a function responsible for bumping the ntc, make use of that and drop that logic from i40e_is_non_eop so that the scope of this function is limited to what the name actually states. Reviewed-by: Björn Töpel Signed-off-by: Maciej Fijalkowski Tested-by: Tony Brelinski Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/i40e/i40e_txrx.c | 23 ++++++--------------- 1 file changed, 6 insertions(+), 17 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index 5f6aa13e85ca..79ca608ee152 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -2271,25 +2271,13 @@ static void i40e_put_rx_buffer(struct i40e_ring *rx_ring, * i40e_is_non_eop - process handling of non-EOP buffers * @rx_ring: Rx ring being processed * @rx_desc: Rx descriptor for current buffer - * @skb: Current socket buffer containing buffer in progress * - * This function updates next to clean. If the buffer is an EOP buffer - * this function exits returning false, otherwise it will place the - * sk_buff in the next buffer to be chained and return true indicating - * that this is in fact a non-EOP buffer. - **/ + * If the buffer is an EOP buffer, this function exits returning false, + * otherwise return true indicating that this is in fact a non-EOP buffer. + */ static bool i40e_is_non_eop(struct i40e_ring *rx_ring, - union i40e_rx_desc *rx_desc, - struct sk_buff *skb) + union i40e_rx_desc *rx_desc) { - u32 ntc = rx_ring->next_to_clean + 1; - - /* fetch, update, and store next to clean */ - ntc = (ntc < rx_ring->count) ? ntc : 0; - rx_ring->next_to_clean = ntc; - - prefetch(I40E_RX_DESC(rx_ring, ntc)); - /* if we are the last buffer then there is nothing else to do */ #define I40E_RXD_EOF BIT(I40E_RX_DESC_STATUS_EOF_SHIFT) if (likely(i40e_test_staterr(rx_desc, I40E_RXD_EOF))) @@ -2568,7 +2556,8 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget) i40e_put_rx_buffer(rx_ring, rx_buffer, rx_buffer_pgcnt); cleaned_count++; - if (i40e_is_non_eop(rx_ring, rx_desc, skb)) + i40e_inc_ntc(rx_ring); + if (i40e_is_non_eop(rx_ring, rx_desc)) continue; if (i40e_cleanup_headers(rx_ring, skb, rx_desc)) {