From patchwork Thu Sep 8 19:33:38 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 12970557 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 17476C38145 for ; Thu, 8 Sep 2022 19:35:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231437AbiIHTf2 (ORCPT ); Thu, 8 Sep 2022 15:35:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55844 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231738AbiIHTfV (ORCPT ); Thu, 8 Sep 2022 15:35:21 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 300B856BB9; Thu, 8 Sep 2022 12:35:17 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 2A0C561DE7; Thu, 8 Sep 2022 19:35:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 31421C433D7; Thu, 8 Sep 2022 19:35:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1662665716; bh=t+trN+nMmksX+M+u18ZOQ0bCmlZr7/qSh7/d7RGQDqQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FBA/UIIoUa1eIF4WckH9ThZgAV5vphoAV4S50sx97c5adcJYfE2Yc0BittQS5aZy7 E1OlvhYfepZrEdTv2UlvyHbdp6sKeEMGxLr2on3+/avFPMUhfYmpnk4kKWA8uJDvMl qGIjSyvhag0FlGzibcjcPFfWSRfk6UpmuTc/qhHmZ8xOorc77SXJdVj8uY2Iw7Mdd8 uWt/IYjHHuZizNOFSsogEZvnQmCn+A+cnvtTiGydDj96HU0vKIS8Lk5oYZROAPsa5e lfFahKZ7HdRisFElR/LhEfL8cMugpLYUm/xuAB23QsJi95qGaMutlQU8TY5sVH8G4T 83/rYSSn0CACA== From: Lorenzo Bianconi To: netdev@vger.kernel.org Cc: nbd@nbd.name, john@phrozen.org, sean.wang@mediatek.com, Mark-MC.Lee@mediatek.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, matthias.bgg@gmail.com, linux-mediatek@lists.infradead.org, lorenzo.bianconi@redhat.com, Bo.Jiao@mediatek.com, sujuan.chen@mediatek.com, ryder.Lee@mediatek.com, evelyn.tsai@mediatek.com, devicetree@vger.kernel.org, robh@kernel.org Subject: [PATCH net-next 04/12] net: ethernet: mtk_eth_soc: move ppe table hash offset to mtk_soc_data structure Date: Thu, 8 Sep 2022 21:33:38 +0200 Message-Id: X-Mailer: git-send-email 2.37.3 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org This is a preliminary patch to introduce mt7986 hw packet engine. Co-developed-by: Bo Jiao Signed-off-by: Bo Jiao Co-developed-by: Sujuan Chen Signed-off-by: Sujuan Chen Signed-off-by: Lorenzo Bianconi --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 4 ++++ drivers/net/ethernet/mediatek/mtk_eth_soc.h | 2 ++ drivers/net/ethernet/mediatek/mtk_ppe.c | 24 +++++++++++++++------ drivers/net/ethernet/mediatek/mtk_ppe.h | 2 +- 4 files changed, 25 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index b2b92fe2a96a..d09717d4f3be 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -4201,6 +4201,7 @@ static const struct mtk_soc_data mt7621_data = { .required_clks = MT7621_CLKS_BITMAP, .required_pctl = false, .offload_version = 2, + .hash_offset = 2, .txrx = { .txd_size = sizeof(struct mtk_tx_dma), .rxd_size = sizeof(struct mtk_rx_dma), @@ -4219,6 +4220,7 @@ static const struct mtk_soc_data mt7622_data = { .required_clks = MT7622_CLKS_BITMAP, .required_pctl = false, .offload_version = 2, + .hash_offset = 2, .txrx = { .txd_size = sizeof(struct mtk_tx_dma), .rxd_size = sizeof(struct mtk_rx_dma), @@ -4236,6 +4238,7 @@ static const struct mtk_soc_data mt7623_data = { .required_clks = MT7623_CLKS_BITMAP, .required_pctl = true, .offload_version = 2, + .hash_offset = 2, .txrx = { .txd_size = sizeof(struct mtk_tx_dma), .rxd_size = sizeof(struct mtk_rx_dma), @@ -4269,6 +4272,7 @@ static const struct mtk_soc_data mt7986_data = { .caps = MT7986_CAPS, .required_clks = MT7986_CLKS_BITMAP, .required_pctl = false, + .hash_offset = 4, .txrx = { .txd_size = sizeof(struct mtk_tx_dma_v2), .rxd_size = sizeof(struct mtk_rx_dma_v2), diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h index 2617cbecdfca..6c5e144cb9f0 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h @@ -969,6 +969,7 @@ struct mtk_reg_map { * the target SoC * @required_pctl A bool value to show whether the SoC requires * the extra setup for those pins used by GMAC. + * @hash_offset Flow table hash offset. * @txd_size Tx DMA descriptor size. * @rxd_size Rx DMA descriptor size. * @rx_irq_done_mask Rx irq done register mask. @@ -983,6 +984,7 @@ struct mtk_soc_data { u32 required_clks; bool required_pctl; u8 offload_version; + u8 hash_offset; netdev_features_t hw_features; struct { u32 txd_size; diff --git a/drivers/net/ethernet/mediatek/mtk_ppe.c b/drivers/net/ethernet/mediatek/mtk_ppe.c index cfe804bc8d20..1cc7d8338722 100644 --- a/drivers/net/ethernet/mediatek/mtk_ppe.c +++ b/drivers/net/ethernet/mediatek/mtk_ppe.c @@ -88,7 +88,7 @@ static void mtk_ppe_cache_enable(struct mtk_ppe *ppe, bool enable) enable * MTK_PPE_CACHE_CTL_EN); } -static u32 mtk_ppe_hash_entry(struct mtk_foe_entry *e) +static u32 mtk_ppe_hash_entry(struct mtk_eth *eth, struct mtk_foe_entry *e) { u32 hv1, hv2, hv3; u32 hash; @@ -122,7 +122,7 @@ static u32 mtk_ppe_hash_entry(struct mtk_foe_entry *e) hash = (hash >> 24) | ((hash & 0xffffff) << 8); hash ^= hv1 ^ hv2 ^ hv3; hash ^= hash >> 16; - hash <<= 1; + hash <<= (ffs(eth->soc->hash_offset) - 1); hash &= MTK_PPE_ENTRIES - 1; return hash; @@ -540,15 +540,16 @@ mtk_foe_entry_commit_l2(struct mtk_ppe *ppe, struct mtk_flow_entry *entry) int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_flow_entry *entry) { int type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, entry->data.ib1); + const struct mtk_soc_data *soc = ppe->eth->soc; u32 hash; if (type == MTK_PPE_PKT_TYPE_BRIDGE) return mtk_foe_entry_commit_l2(ppe, entry); - hash = mtk_ppe_hash_entry(&entry->data); + hash = mtk_ppe_hash_entry(ppe->eth, &entry->data); entry->hash = 0xffff; spin_lock_bh(&ppe_lock); - hlist_add_head(&entry->list, &ppe->foe_flow[hash / 2]); + hlist_add_head(&entry->list, &ppe->foe_flow[hash / soc->hash_offset]); spin_unlock_bh(&ppe_lock); return 0; @@ -558,6 +559,7 @@ static void mtk_foe_entry_commit_subflow(struct mtk_ppe *ppe, struct mtk_flow_entry *entry, u16 hash) { + const struct mtk_soc_data *soc = ppe->eth->soc; struct mtk_flow_entry *flow_info; struct mtk_foe_entry foe, *hwe; struct mtk_foe_mac_info *l2; @@ -572,7 +574,8 @@ mtk_foe_entry_commit_subflow(struct mtk_ppe *ppe, struct mtk_flow_entry *entry, flow_info->l2_data.base_flow = entry; flow_info->type = MTK_FLOW_TYPE_L2_SUBFLOW; flow_info->hash = hash; - hlist_add_head(&flow_info->list, &ppe->foe_flow[hash / 2]); + hlist_add_head(&flow_info->list, + &ppe->foe_flow[hash / soc->hash_offset]); hlist_add_head(&flow_info->l2_data.list, &entry->l2_flows); hwe = &ppe->foe_table[hash]; @@ -596,7 +599,8 @@ mtk_foe_entry_commit_subflow(struct mtk_ppe *ppe, struct mtk_flow_entry *entry, void __mtk_ppe_check_skb(struct mtk_ppe *ppe, struct sk_buff *skb, u16 hash) { - struct hlist_head *head = &ppe->foe_flow[hash / 2]; + const struct mtk_soc_data *soc = ppe->eth->soc; + struct hlist_head *head = &ppe->foe_flow[hash / soc->hash_offset]; struct mtk_foe_entry *hwe = &ppe->foe_table[hash]; struct mtk_flow_entry *entry; struct mtk_foe_bridge key = {}; @@ -680,9 +684,11 @@ int mtk_foe_entry_idle_time(struct mtk_ppe *ppe, struct mtk_flow_entry *entry) struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base, int version) { + const struct mtk_soc_data *soc = eth->soc; struct device *dev = eth->dev; struct mtk_foe_entry *foe; struct mtk_ppe *ppe; + u32 foe_flow_size; ppe = devm_kzalloc(dev, sizeof(*ppe), GFP_KERNEL); if (!ppe) @@ -705,6 +711,12 @@ struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base, ppe->foe_table = foe; + foe_flow_size = (MTK_PPE_ENTRIES / soc->hash_offset) * + sizeof(*ppe->foe_flow); + ppe->foe_flow = devm_kzalloc(dev, foe_flow_size, GFP_KERNEL); + if (!ppe->foe_flow) + return NULL; + mtk_ppe_debugfs_init(ppe); return ppe; diff --git a/drivers/net/ethernet/mediatek/mtk_ppe.h b/drivers/net/ethernet/mediatek/mtk_ppe.h index bb079e3c0417..22efed6599c2 100644 --- a/drivers/net/ethernet/mediatek/mtk_ppe.h +++ b/drivers/net/ethernet/mediatek/mtk_ppe.h @@ -270,7 +270,7 @@ struct mtk_ppe { dma_addr_t foe_phys; u16 foe_check_time[MTK_PPE_ENTRIES]; - struct hlist_head foe_flow[MTK_PPE_ENTRIES / 2]; + struct hlist_head *foe_flow; struct rhashtable l2_flows;