From patchwork Wed Dec 18 01:07:40 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rasesh Mody X-Patchwork-Id: 302597 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 832DF2C00AD for ; Wed, 18 Dec 2013 12:08:59 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752619Ab3LRBI4 (ORCPT ); Tue, 17 Dec 2013 20:08:56 -0500 Received: from mx0b-000f0801.pphosted.com ([67.231.152.113]:10513 "EHLO mx0b-000f0801.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751885Ab3LRBIy (ORCPT ); Tue, 17 Dec 2013 20:08:54 -0500 Received: from pps.filterd (m0000700 [127.0.0.1]) by mx0b-000f0801.pphosted.com (8.14.5/8.14.5) with SMTP id rBI0lSTi008366; Tue, 17 Dec 2013 17:08:53 -0800 Received: from hq1wp-exchub01.corp.brocade.com ([144.49.131.13]) by mx0b-000f0801.pphosted.com with ESMTP id 1gtuj2rdkh-1 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT); Tue, 17 Dec 2013 17:08:53 -0800 Received: from blc-10-1.brocade.com (10.70.4.101) by HQ1WP-EXCHUB01.corp.brocade.com (10.70.36.101) with Microsoft SMTP Server (TLS) id 14.3.123.3; Tue, 17 Dec 2013 17:08:52 -0800 Received: from blc-10-1.brocade.com (localhost.localdomain [127.0.0.1]) by blc-10-1.brocade.com (8.13.1/8.13.8) with ESMTP id rBI18qSu027392; Tue, 17 Dec 2013 17:08:52 -0800 Received: (from rmody@localhost) by blc-10-1.brocade.com (8.13.1/8.13.8/Submit) id rBI18qSR027388; Tue, 17 Dec 2013 17:08:52 -0800 From: Rasesh Mody To: CC: , , Rasesh Mody Subject: [net-next 10/12] bna: Embed SKB Length in TX Vector Date: Tue, 17 Dec 2013 17:07:40 -0800 Message-ID: <1387328862-27213-11-git-send-email-rmody@brocade.com> X-Mailer: git-send-email 1.8.3.rc2 In-Reply-To: <1387328862-27213-1-git-send-email-rmody@brocade.com> References: <1387328862-27213-1-git-send-email-rmody@brocade.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.11.87, 1.0.14, 0.0.0000 definitions=2013-12-17_05:2013-12-17, 2013-12-17, 1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 suspectscore=1 phishscore=0 adultscore=5 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1305240000 definitions=main-1312170201 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org - Store the length of the skb buffer mapped along with the handle and use it while unmapping the buffer. Signed-off-by: Rasesh Mody --- drivers/net/ethernet/brocade/bna/bnad.c | 6 ++++-- drivers/net/ethernet/brocade/bna/bnad.h | 1 + 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c index ad8dd75..0d7a304 100644 --- a/drivers/net/ethernet/brocade/bna/bnad.c +++ b/drivers/net/ethernet/brocade/bna/bnad.c @@ -142,7 +142,8 @@ bnad_tx_buff_unmap(struct bnad *bnad, dma_unmap_page(&bnad->pcidev->dev, dma_unmap_addr(&unmap->vectors[vector], dma_addr), - skb_shinfo(skb)->frags[nvecs].size, DMA_TO_DEVICE); + dma_unmap_len(&unmap->vectors[vector], dma_len), + DMA_TO_DEVICE); dma_unmap_addr_set(&unmap->vectors[vector], dma_addr, 0); nvecs--; } @@ -3045,7 +3046,7 @@ bnad_start_xmit(struct sk_buff *skb, struct net_device *netdev) for (i = 0, vect_id = 0; i < vectors - 1; i++) { const struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i]; - u16 size = skb_frag_size(frag); + u32 size = skb_frag_size(frag); if (unlikely(size == 0)) { /* Undo the changes starting at tcb->producer_index */ @@ -3070,6 +3071,7 @@ bnad_start_xmit(struct sk_buff *skb, struct net_device *netdev) dma_addr = skb_frag_dma_map(&bnad->pcidev->dev, frag, 0, size, DMA_TO_DEVICE); + unmap->vectors[vect_id].dma_len = size; BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[vect_id].host_addr); txqent->vector[vect_id].length = htons(size); dma_unmap_addr_set(&unmap->vectors[vect_id], dma_addr, diff --git a/drivers/net/ethernet/brocade/bna/bnad.h b/drivers/net/ethernet/brocade/bna/bnad.h index 3cdc88e..e174e22 100644 --- a/drivers/net/ethernet/brocade/bna/bnad.h +++ b/drivers/net/ethernet/brocade/bna/bnad.h @@ -222,6 +222,7 @@ struct bnad_rx_info { struct bnad_tx_vector { DEFINE_DMA_UNMAP_ADDR(dma_addr); + DEFINE_DMA_UNMAP_LEN(dma_len); }; struct bnad_tx_unmap {