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GET /api/patches/809210/?format=api
{ "id": 809210, "url": "http://patchwork.ozlabs.org/api/patches/809210/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netdev/patch/20170903042117.28923-6-saeedm@mellanox.com/", "project": { "id": 7, "url": "http://patchwork.ozlabs.org/api/projects/7/?format=api", "name": "Linux network development", "link_name": "netdev", "list_id": "netdev.vger.kernel.org", "list_email": "netdev@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20170903042117.28923-6-saeedm@mellanox.com>", "list_archive_url": null, "date": "2017-09-03T04:21:05", "name": "[net-next,05/17] net/mlx5e: Small enhancements for RX MPWQE allocation and free", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": true, "hash": "9b7afecab0d5327194136e565bd00c611c4b9915", "submitter": { "id": 65299, "url": "http://patchwork.ozlabs.org/api/people/65299/?format=api", "name": "Saeed Mahameed", "email": "saeedm@mellanox.com" }, "delegate": { "id": 34, "url": "http://patchwork.ozlabs.org/api/users/34/?format=api", "username": "davem", "first_name": "David", "last_name": "Miller", "email": "davem@davemloft.net" }, "mbox": "http://patchwork.ozlabs.org/project/netdev/patch/20170903042117.28923-6-saeedm@mellanox.com/mbox/", "series": [ { "id": 1196, "url": "http://patchwork.ozlabs.org/api/series/1196/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netdev/list/?series=1196", "date": "2017-09-03T04:21:09", "name": "[net-next,01/17] net/mlx5e: Reorganize struct mlx5e_rq", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/1196/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/809210/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/809210/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<netdev-owner@vger.kernel.org>", "X-Original-To": "patchwork-incoming@ozlabs.org", "Delivered-To": "patchwork-incoming@ozlabs.org", "Authentication-Results": "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=<UNKNOWN>)", "Received": [ "from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xlKbZ2j1Bz9s7C\n\tfor <patchwork-incoming@ozlabs.org>;\n\tSun, 3 Sep 2017 14:23:22 +1000 (AEST)", "(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1752828AbdICEXV (ORCPT <rfc822;patchwork-incoming@ozlabs.org>);\n\tSun, 3 Sep 2017 00:23:21 -0400", "from mail-il-dmz.mellanox.com ([193.47.165.129]:59998 \"EHLO\n\tmellanox.co.il\" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org\n\twith ESMTP id S1751070AbdICEWL (ORCPT\n\t<rfc822;netdev@vger.kernel.org>); Sun, 3 Sep 2017 00:22:11 -0400", "from Internal Mail-Server by MTLPINE1 (envelope-from\n\tsaeedm@mellanox.com)\n\twith ESMTPS (AES256-SHA encrypted); 3 Sep 2017 07:22:06 +0300", "from sws.mtl.labs.mlnx (reg-l-vrt-045-015.mtl.labs.mlnx\n\t[10.135.45.15])\n\tby labmailer.mlnx (8.13.8/8.13.8) with ESMTP id v834M5l6017672;\n\tSun, 3 Sep 2017 07:22:06 +0300" ], "From": "Saeed Mahameed <saeedm@mellanox.com>", "To": "\"David S. Miller\" <davem@davemloft.net>", "Cc": "netdev@vger.kernel.org, kernel-team@fb.com,\n\tTariq Toukan <tariqt@mellanox.com>, Saeed Mahameed <saeedm@mellanox.com>", "Subject": "[net-next 05/17] net/mlx5e: Small enhancements for RX MPWQE\n\tallocation and free", "Date": "Sun, 3 Sep 2017 07:21:05 +0300", "Message-Id": "<20170903042117.28923-6-saeedm@mellanox.com>", "X-Mailer": "git-send-email 2.13.0", "In-Reply-To": "<20170903042117.28923-1-saeedm@mellanox.com>", "References": "<20170903042117.28923-1-saeedm@mellanox.com>", "Sender": "netdev-owner@vger.kernel.org", "Precedence": "bulk", "List-ID": "<netdev.vger.kernel.org>", "X-Mailing-List": "netdev@vger.kernel.org" }, "content": "From: Tariq Toukan <tariqt@mellanox.com>\n\nThe dma offset of a MPWQE (Multi-Packet WQE) in memory region\nis fixed for all rounds. Calculate it once on creation time,\ninstead of in runtime. This also obsoletes the wqe argument in\nthe function.\n\nIn addition, optimize dma_info iterator calculation.\n\nSigned-off-by: Tariq Toukan <tariqt@mellanox.com>\nSigned-off-by: Saeed Mahameed <saeedm@mellanox.com>\n---\n drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 6 ++++++\n drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 18 ++++++------------\n 2 files changed, 12 insertions(+), 12 deletions(-)", "diff": "diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c\nindex 591e0dca9671..5aa4681f7c3c 100644\n--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c\n+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c\n@@ -674,6 +674,12 @@ static int mlx5e_alloc_rq(struct mlx5e_channel *c,\n \tfor (i = 0; i < wq_sz; i++) {\n \t\tstruct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i);\n \n+\t\tif (rq->wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ) {\n+\t\t\tu64 dma_offset = (u64)mlx5e_get_wqe_mtt_offset(rq, i) << PAGE_SHIFT;\n+\n+\t\t\twqe->data.addr = cpu_to_be64(dma_offset);\n+\t\t}\n+\n \t\twqe->data.byte_count = cpu_to_be32(byte_count);\n \t\twqe->data.lkey = rq->mkey_be;\n \t}\ndiff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c\nindex db372dcecbe0..fb3b83609aea 100644\n--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c\n+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c\n@@ -374,18 +374,15 @@ static inline void mlx5e_post_umr_wqe(struct mlx5e_rq *rq, u16 ix)\n }\n \n static int mlx5e_alloc_rx_umr_mpwqe(struct mlx5e_rq *rq,\n-\t\t\t\t struct mlx5e_rx_wqe *wqe,\n \t\t\t\t u16 ix)\n {\n \tstruct mlx5e_mpw_info *wi = &rq->mpwqe.info[ix];\n-\tu64 dma_offset = (u64)mlx5e_get_wqe_mtt_offset(rq, ix) << PAGE_SHIFT;\n \tint pg_strides = mlx5e_mpwqe_strides_per_page(rq);\n+\tstruct mlx5e_dma_info *dma_info = &wi->umr.dma_info[0];\n \tint err;\n \tint i;\n \n-\tfor (i = 0; i < MLX5_MPWRQ_PAGES_PER_WQE; i++) {\n-\t\tstruct mlx5e_dma_info *dma_info = &wi->umr.dma_info[i];\n-\n+\tfor (i = 0; i < MLX5_MPWRQ_PAGES_PER_WQE; i++, dma_info++) {\n \t\terr = mlx5e_page_alloc_mapped(rq, dma_info);\n \t\tif (unlikely(err))\n \t\t\tgoto err_unmap;\n@@ -395,14 +392,12 @@ static int mlx5e_alloc_rx_umr_mpwqe(struct mlx5e_rq *rq,\n \n \tmemset(wi->skbs_frags, 0, sizeof(*wi->skbs_frags) * MLX5_MPWRQ_PAGES_PER_WQE);\n \twi->consumed_strides = 0;\n-\twqe->data.addr = cpu_to_be64(dma_offset);\n \n \treturn 0;\n \n err_unmap:\n \twhile (--i >= 0) {\n-\t\tstruct mlx5e_dma_info *dma_info = &wi->umr.dma_info[i];\n-\n+\t\tdma_info--;\n \t\tpage_ref_sub(dma_info->page, pg_strides);\n \t\tmlx5e_page_release(rq, dma_info, true);\n \t}\n@@ -413,11 +408,10 @@ static int mlx5e_alloc_rx_umr_mpwqe(struct mlx5e_rq *rq,\n void mlx5e_free_rx_mpwqe(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi)\n {\n \tint pg_strides = mlx5e_mpwqe_strides_per_page(rq);\n+\tstruct mlx5e_dma_info *dma_info = &wi->umr.dma_info[0];\n \tint i;\n \n-\tfor (i = 0; i < MLX5_MPWRQ_PAGES_PER_WQE; i++) {\n-\t\tstruct mlx5e_dma_info *dma_info = &wi->umr.dma_info[i];\n-\n+\tfor (i = 0; i < MLX5_MPWRQ_PAGES_PER_WQE; i++, dma_info++) {\n \t\tpage_ref_sub(dma_info->page, pg_strides - wi->skbs_frags[i]);\n \t\tmlx5e_page_release(rq, dma_info, true);\n \t}\n@@ -447,7 +441,7 @@ int mlx5e_alloc_rx_mpwqe(struct mlx5e_rq *rq, struct mlx5e_rx_wqe *wqe, u16 ix)\n {\n \tint err;\n \n-\terr = mlx5e_alloc_rx_umr_mpwqe(rq, wqe, ix);\n+\terr = mlx5e_alloc_rx_umr_mpwqe(rq, ix);\n \tif (unlikely(err))\n \t\treturn err;\n \tset_bit(MLX5E_RQ_STATE_UMR_WQE_IN_PROGRESS, &rq->state);\n", "prefixes": [ "net-next", "05/17" ] }