From patchwork Tue Feb 9 01:16:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Nguyen X-Patchwork-Id: 379881 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=-16.8 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 30610C433DB for ; Tue, 9 Feb 2021 01:16:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DF41364EB4 for ; Tue, 9 Feb 2021 01:16:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230088AbhBIBQq (ORCPT ); Mon, 8 Feb 2021 20:16:46 -0500 Received: from mga07.intel.com ([134.134.136.100]:36361 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229968AbhBIBQo (ORCPT ); Mon, 8 Feb 2021 20:16:44 -0500 IronPort-SDR: CmyouXm3L/zdR7+EDYJrFrpUZPHs+dJWNye4tyd2PukjZJKTK9xLdw62ummcD/NNPk2Y5YXPEG BTqkznNg/g8Q== X-IronPort-AV: E=McAfee;i="6000,8403,9889"; a="245879731" X-IronPort-AV: E=Sophos;i="5.81,163,1610438400"; d="scan'208";a="245879731" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Feb 2021 17:15:47 -0800 IronPort-SDR: ts79EONVpE0qu9gzyY441xEVBBYMe8Rt9rtjga0wv8/UJlUReFlGy1zMn4yasiDeb6W+ahMkXG TOQ+jB7sytjA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,163,1610438400"; d="scan'208";a="487669597" Received: from anguy11-desk2.jf.intel.com ([10.166.244.147]) by fmsmga001.fm.intel.com with ESMTP; 08 Feb 2021 17:15:46 -0800 From: Tony Nguyen To: davem@davemloft.net, kuba@kernel.org Cc: Michal Swiatkowski , netdev@vger.kernel.org, sassmann@redhat.com, anthony.l.nguyen@intel.com, bjorn.topel@intel.com, magnus.karlsson@intel.com, maciej.fijalkowski@intel.com, Kiran Bhandare Subject: [PATCH net-next 03/12] ice: Remove xsk_buff_pool from VSI structure Date: Mon, 8 Feb 2021 17:16:27 -0800 Message-Id: <20210209011636.1989093-4-anthony.l.nguyen@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210209011636.1989093-1-anthony.l.nguyen@intel.com> References: <20210209011636.1989093-1-anthony.l.nguyen@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Michal Swiatkowski Current implementation of netdev already contains xsk_buff_pools. We no longer have to contain these structures in ice_vsi. Refactor the code to operate on netdev-provided xsk_buff_pools. Move scheduling napi on each queue to a separate function to simplify setup function. Signed-off-by: Michal Swiatkowski Reviewed-by: Maciej Fijalkowski Tested-by: Kiran Bhandare Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/ice/ice.h | 10 +--- drivers/net/ethernet/intel/ice/ice_main.c | 28 +++++---- drivers/net/ethernet/intel/ice/ice_xsk.c | 71 +++-------------------- 3 files changed, 30 insertions(+), 79 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h index fca428c879ec..d38f8e8e7e0e 100644 --- a/drivers/net/ethernet/intel/ice/ice.h +++ b/drivers/net/ethernet/intel/ice/ice.h @@ -39,6 +39,7 @@ #include #include #include +#include #include #include #include @@ -326,9 +327,6 @@ struct ice_vsi { struct ice_ring **xdp_rings; /* XDP ring array */ u16 num_xdp_txq; /* Used XDP queues */ u8 xdp_mapping_mode; /* ICE_MAP_MODE_[CONTIG|SCATTER] */ - struct xsk_buff_pool **xsk_pools; - u16 num_xsk_pools_used; - u16 num_xsk_pools; } ____cacheline_internodealigned_in_smp; /* struct that defines an interrupt vector */ @@ -517,17 +515,15 @@ static inline void ice_set_ring_xdp(struct ice_ring *ring) */ static inline struct xsk_buff_pool *ice_xsk_pool(struct ice_ring *ring) { - struct xsk_buff_pool **pools = ring->vsi->xsk_pools; u16 qid = ring->q_index; if (ice_ring_is_xdp(ring)) qid -= ring->vsi->num_xdp_txq; - if (qid >= ring->vsi->num_xsk_pools || !pools || !pools[qid] || - !ice_is_xdp_ena_vsi(ring->vsi)) + if (!ice_is_xdp_ena_vsi(ring->vsi)) return NULL; - return pools[qid]; + return xsk_get_pool_from_qid(ring->vsi->netdev, qid); } /** diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 98cd44a3ccf7..c22f8a5c8cdf 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -2475,6 +2475,22 @@ int ice_destroy_xdp_rings(struct ice_vsi *vsi) max_txqs); } +/** + * ice_vsi_rx_napi_schedule - Schedule napi on RX queues from VSI + * @vsi: VSI to schedule napi on + */ +static void ice_vsi_rx_napi_schedule(struct ice_vsi *vsi) +{ + int i; + + ice_for_each_rxq(vsi, i) { + struct ice_ring *rx_ring = vsi->rx_rings[i]; + + if (rx_ring->xsk_pool) + napi_schedule(&rx_ring->q_vector->napi); + } +} + /** * ice_xdp_setup_prog - Add or remove XDP eBPF program * @vsi: VSI to setup XDP for @@ -2519,16 +2535,8 @@ ice_xdp_setup_prog(struct ice_vsi *vsi, struct bpf_prog *prog, if (if_running) ret = ice_up(vsi); - if (!ret && prog && vsi->xsk_pools) { - int i; - - ice_for_each_rxq(vsi, i) { - struct ice_ring *rx_ring = vsi->rx_rings[i]; - - if (rx_ring->xsk_pool) - napi_schedule(&rx_ring->q_vector->napi); - } - } + if (!ret && prog) + ice_vsi_rx_napi_schedule(vsi); return (ret || xdp_ring_err) ? -ENOMEM : 0; } diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c index 1782146db644..875fa0cbef56 100644 --- a/drivers/net/ethernet/intel/ice/ice_xsk.c +++ b/drivers/net/ethernet/intel/ice/ice_xsk.c @@ -259,45 +259,6 @@ static int ice_qp_ena(struct ice_vsi *vsi, u16 q_idx) return err; } -/** - * ice_xsk_alloc_pools - allocate a buffer pool for an XDP socket - * @vsi: VSI to allocate the buffer pool on - * - * Returns 0 on success, negative on error - */ -static int ice_xsk_alloc_pools(struct ice_vsi *vsi) -{ - if (vsi->xsk_pools) - return 0; - - vsi->xsk_pools = kcalloc(vsi->num_xsk_pools, sizeof(*vsi->xsk_pools), - GFP_KERNEL); - - if (!vsi->xsk_pools) { - vsi->num_xsk_pools = 0; - return -ENOMEM; - } - - return 0; -} - -/** - * ice_xsk_remove_pool - Remove an buffer pool for a certain ring/qid - * @vsi: VSI from which the VSI will be removed - * @qid: Ring/qid associated with the buffer pool - */ -static void ice_xsk_remove_pool(struct ice_vsi *vsi, u16 qid) -{ - vsi->xsk_pools[qid] = NULL; - vsi->num_xsk_pools_used--; - - if (vsi->num_xsk_pools_used == 0) { - kfree(vsi->xsk_pools); - vsi->xsk_pools = NULL; - vsi->num_xsk_pools = 0; - } -} - /** * ice_xsk_pool_disable - disable a buffer pool region * @vsi: Current VSI @@ -307,12 +268,12 @@ static void ice_xsk_remove_pool(struct ice_vsi *vsi, u16 qid) */ static int ice_xsk_pool_disable(struct ice_vsi *vsi, u16 qid) { - if (!vsi->xsk_pools || qid >= vsi->num_xsk_pools || - !vsi->xsk_pools[qid]) + struct xsk_buff_pool *pool = xsk_get_pool_from_qid(vsi->netdev, qid); + + if (!pool) return -EINVAL; - xsk_pool_dma_unmap(vsi->xsk_pools[qid], ICE_RX_DMA_ATTR); - ice_xsk_remove_pool(vsi, qid); + xsk_pool_dma_unmap(pool, ICE_RX_DMA_ATTR); return 0; } @@ -333,22 +294,11 @@ ice_xsk_pool_enable(struct ice_vsi *vsi, struct xsk_buff_pool *pool, u16 qid) if (vsi->type != ICE_VSI_PF) return -EINVAL; - if (!vsi->num_xsk_pools) - vsi->num_xsk_pools = min_t(u16, vsi->num_rxq, vsi->num_txq); - if (qid >= vsi->num_xsk_pools) + if (qid >= vsi->netdev->real_num_rx_queues || + qid >= vsi->netdev->real_num_tx_queues) return -EINVAL; - err = ice_xsk_alloc_pools(vsi); - if (err) - return err; - - if (vsi->xsk_pools && vsi->xsk_pools[qid]) - return -EBUSY; - - vsi->xsk_pools[qid] = pool; - vsi->num_xsk_pools_used++; - - err = xsk_pool_dma_map(vsi->xsk_pools[qid], ice_pf_to_dev(vsi->back), + err = xsk_pool_dma_map(pool, ice_pf_to_dev(vsi->back), ICE_RX_DMA_ATTR); if (err) return err; @@ -842,11 +792,8 @@ bool ice_xsk_any_rx_ring_ena(struct ice_vsi *vsi) { int i; - if (!vsi->xsk_pools) - return false; - - for (i = 0; i < vsi->num_xsk_pools; i++) { - if (vsi->xsk_pools[i]) + ice_for_each_rxq(vsi, i) { + if (xsk_get_pool_from_qid(vsi->netdev, i)) return true; }