From patchwork Wed Sep 11 17:24:33 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ciara Loftus X-Patchwork-Id: 1161176 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=intel.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 46T82j11y0z9s4Y for ; Thu, 12 Sep 2019 03:26:37 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729585AbfIKR0f (ORCPT ); Wed, 11 Sep 2019 13:26:35 -0400 Received: from mga02.intel.com ([134.134.136.20]:44405 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728897AbfIKR0f (ORCPT ); Wed, 11 Sep 2019 13:26:35 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 11 Sep 2019 10:26:34 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,489,1559545200"; d="scan'208";a="384772689" Received: from silpixa00399839.ir.intel.com (HELO localhost.localdomain) ([10.237.223.65]) by fmsmga005.fm.intel.com with ESMTP; 11 Sep 2019 10:26:31 -0700 From: Ciara Loftus To: netdev@vger.kernel.org, ast@kernel.org, daniel@iogearbox.net, bjorn.topel@intel.com, magnus.karlsson@intel.com, jonathan.lemon@gmail.com Cc: bruce.richardson@intel.com, bpf@vger.kernel.org, intel-wired-lan@lists.osuosl.org, kevin.laatz@intel.com, Ciara Loftus Subject: [PATCH bpf-next 1/3] i40e: fix xdp handle calculations Date: Wed, 11 Sep 2019 17:24:33 +0000 Message-Id: <20190911172435.21042-1-ciara.loftus@intel.com> X-Mailer: git-send-email 2.17.1 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Commit 4c5d9a7fa149 ("i40e: fix xdp handle calculations") reintroduced the addition of the umem headroom to the xdp handle in the i40e_zca_free, i40e_alloc_buffer_slow_zc and i40e_alloc_buffer_zc functions. However, the headroom is already added to the handle in the function i40_run_xdp_zc. This commit removes the latter addition and fixes the case where the headroom is non-zero. Fixes: 4c5d9a7fa149 ("i40e: fix xdp handle calculations") Signed-off-by: Ciara Loftus Tested-by: Andrew Bowers --- drivers/net/ethernet/intel/i40e/i40e_xsk.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_xsk.c b/drivers/net/ethernet/intel/i40e/i40e_xsk.c index 0373bc6c7e61..5f285ba1f1f9 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_xsk.c +++ b/drivers/net/ethernet/intel/i40e/i40e_xsk.c @@ -192,7 +192,7 @@ static int i40e_run_xdp_zc(struct i40e_ring *rx_ring, struct xdp_buff *xdp) { struct xdp_umem *umem = rx_ring->xsk_umem; int err, result = I40E_XDP_PASS; - u64 offset = umem->headroom; + u64 offset; struct i40e_ring *xdp_ring; struct bpf_prog *xdp_prog; u32 act; @@ -203,7 +203,7 @@ static int i40e_run_xdp_zc(struct i40e_ring *rx_ring, struct xdp_buff *xdp) */ xdp_prog = READ_ONCE(rx_ring->xdp_prog); act = bpf_prog_run_xdp(xdp_prog, xdp); - offset += xdp->data - xdp->data_hard_start; + offset = xdp->data - xdp->data_hard_start; xdp->handle = xsk_umem_adjust_offset(umem, xdp->handle, offset); From patchwork Wed Sep 11 17:24:34 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ciara Loftus X-Patchwork-Id: 1161178 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Original-To: incoming-bpf@patchwork.ozlabs.org Delivered-To: patchwork-incoming-bpf@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=bpf-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=intel.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 46T82r3pMpz9s00 for ; Thu, 12 Sep 2019 03:26:44 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729586AbfIKR0o (ORCPT ); Wed, 11 Sep 2019 13:26:44 -0400 Received: from mga04.intel.com ([192.55.52.120]:17453 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728897AbfIKR0o (ORCPT ); Wed, 11 Sep 2019 13:26:44 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 11 Sep 2019 10:26:43 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,489,1559545200"; d="scan'208";a="384772712" Received: from silpixa00399839.ir.intel.com (HELO localhost.localdomain) ([10.237.223.65]) by fmsmga005.fm.intel.com with ESMTP; 11 Sep 2019 10:26:41 -0700 From: Ciara Loftus To: netdev@vger.kernel.org, ast@kernel.org, daniel@iogearbox.net, bjorn.topel@intel.com, magnus.karlsson@intel.com, jonathan.lemon@gmail.com Cc: bruce.richardson@intel.com, bpf@vger.kernel.org, intel-wired-lan@lists.osuosl.org, kevin.laatz@intel.com, Ciara Loftus Subject: [PATCH bpf-next 2/3] ixgbe: fix xdp handle calculations Date: Wed, 11 Sep 2019 17:24:34 +0000 Message-Id: <20190911172435.21042-2-ciara.loftus@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190911172435.21042-1-ciara.loftus@intel.com> References: <20190911172435.21042-1-ciara.loftus@intel.com> Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Commit 7cbbf9f1fa23 ("ixgbe: fix xdp handle calculations") reintroduced the addition of the umem headroom to the xdp handle in the ixgbe_zca_free, ixgbe_alloc_buffer_slow_zc and ixgbe_alloc_buffer_zc functions. However, the headroom is already added to the handle in the function ixgbe_run_xdp_zc. This commit removes the latter addition and fixes the case where the headroom is non-zero. Fixes: 7cbbf9f1fa23 ("ixgbe: fix xdp handle calculations") Signed-off-by: Ciara Loftus Tested-by: Andrew Bowers --- drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c index ad802a8909e0..5ed8b5a257cf 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c @@ -145,7 +145,7 @@ static int ixgbe_run_xdp_zc(struct ixgbe_adapter *adapter, { struct xdp_umem *umem = rx_ring->xsk_umem; int err, result = IXGBE_XDP_PASS; - u64 offset = umem->headroom; + u64 offset; struct bpf_prog *xdp_prog; struct xdp_frame *xdpf; u32 act; @@ -153,7 +153,7 @@ static int ixgbe_run_xdp_zc(struct ixgbe_adapter *adapter, rcu_read_lock(); xdp_prog = READ_ONCE(rx_ring->xdp_prog); act = bpf_prog_run_xdp(xdp_prog, xdp); - offset += xdp->data - xdp->data_hard_start; + offset = xdp->data - xdp->data_hard_start; xdp->handle = xsk_umem_adjust_offset(umem, xdp->handle, offset); From patchwork Wed Sep 11 17:24:35 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ciara Loftus X-Patchwork-Id: 1161180 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Original-To: incoming-bpf@patchwork.ozlabs.org Delivered-To: patchwork-incoming-bpf@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=bpf-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=intel.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 46T82w5hFMz9sNk for ; Thu, 12 Sep 2019 03:26:48 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729565AbfIKR0s (ORCPT ); Wed, 11 Sep 2019 13:26:48 -0400 Received: from mga04.intel.com ([192.55.52.120]:17453 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728897AbfIKR0s (ORCPT ); Wed, 11 Sep 2019 13:26:48 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 11 Sep 2019 10:26:47 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,489,1559545200"; d="scan'208";a="384772720" Received: from silpixa00399839.ir.intel.com (HELO localhost.localdomain) ([10.237.223.65]) by fmsmga005.fm.intel.com with ESMTP; 11 Sep 2019 10:26:45 -0700 From: Ciara Loftus To: netdev@vger.kernel.org, ast@kernel.org, daniel@iogearbox.net, bjorn.topel@intel.com, magnus.karlsson@intel.com, jonathan.lemon@gmail.com Cc: bruce.richardson@intel.com, bpf@vger.kernel.org, intel-wired-lan@lists.osuosl.org, kevin.laatz@intel.com, Ciara Loftus Subject: [PATCH bpf-next 3/3] samples/bpf: fix xdpsock l2fwd tx for unaligned mode Date: Wed, 11 Sep 2019 17:24:35 +0000 Message-Id: <20190911172435.21042-3-ciara.loftus@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190911172435.21042-1-ciara.loftus@intel.com> References: <20190911172435.21042-1-ciara.loftus@intel.com> Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Preserve the offset of the address of the received descriptor, and include it in the address set for the tx descriptor, so the kernel can correctly locate the start of the packet data. Fixes: 03895e63ff97 ("samples/bpf: add buffer recycling for unaligned chunks to xdpsock") Signed-off-by: Ciara Loftus --- samples/bpf/xdpsock_user.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c index 102eace22956..df011ac33402 100644 --- a/samples/bpf/xdpsock_user.c +++ b/samples/bpf/xdpsock_user.c @@ -685,7 +685,7 @@ static void l2fwd(struct xsk_socket_info *xsk, struct pollfd *fds) for (i = 0; i < rcvd; i++) { u64 addr = xsk_ring_cons__rx_desc(&xsk->rx, idx_rx)->addr; u32 len = xsk_ring_cons__rx_desc(&xsk->rx, idx_rx++)->len; - u64 orig = xsk_umem__extract_addr(addr); + u64 orig = addr; addr = xsk_umem__add_offset_to_addr(addr); char *pkt = xsk_umem__get_data(xsk->umem->buffer, addr);