From patchwork Tue Sep 13 17:00:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 12975001 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E2CB2C54EE9 for ; Tue, 13 Sep 2022 17:02:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=NwzvXiI9a1HdC8pdd8df/ErJ+ZH5eSXvdhSSIAjxGh8=; b=DGCBtptxrvBI+StmzstgYQKAc8 7yO/2s/Q0XT3IbClvwBW6FX7am1coxxy9/8uOBJfLHG9odKlha94IaHJeDxvNlvK9exdmkjqDus8g ddkfIoVMdfPrVDlE37RCBpP+pSsWtkGY+NpNkVjbVAUpdB5eodLoHKB5fNz55fI9NAcnSFsDJFKxp HiSALn8BMO5T6YbcpvfgJ97X8Srxef/rztveFlSjbYT9oTZlLxH4pMZQZVNW6N5jxJT9E/Jb7z76+ QfpJGI0XZeGz78RT3p096OGBehtgtigzNcX91S/1umvcOauwV6XZ8goIWC4Hv8WZk/hxKpLBiT0+c zXsS/Y2g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oY9IQ-00Dix5-83; Tue, 13 Sep 2022 17:02:02 +0000 Received: from ams.source.kernel.org ([2604:1380:4601:e00::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oY9IM-00DirV-Rs for linux-mediatek@lists.infradead.org; Tue, 13 Sep 2022 17:02:01 +0000 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 ams.source.kernel.org (Postfix) with ESMTPS id 54721B81042; Tue, 13 Sep 2022 17:01:57 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 914EEC433B5; Tue, 13 Sep 2022 17:01:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1663088516; bh=glKED/0Y4fO2g8zx6ZFea7N26bEnJHPkIB6vu3yBSX0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mAc95L0VTO3CvDFYVHedPjFehpXmRkRotMUuzmg9n2953an5BtPfnYFJtnFt/A4MA d0LwQaY8/XjSBtX5ILnXZs9FQ9mm9ARrPMNMEw82r7kMFYbIZnnMjSHbkFQJiVKBcw h9Uhtx7Fde1ba/gERQ2OWT7nGI/Cj4dEX+TXLnR+KYgsOpQrpVlJQ1lkxd1JnwRZga Fl4IZ1Gi7Vc35w7RgduPqZPf7S8lqRbBgxVM9z4r7ZSqKMYtfii3OvseQL6Vm13EX6 ACIK9c4AkUq1J01em3XpZncZlrJhKen+EWUl0ZqZb9boJkdTrajYn/iPy7hs7A/4g1 51qljzvWX76Lw== 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, daniel@makrotopia.org Subject: [PATCH v2 net-next 04/11] net: ethernet: mtk_eth_soc: move ppe table hash offset to mtk_soc_data structure Date: Tue, 13 Sep 2022 19:00:54 +0200 Message-Id: X-Mailer: git-send-email 2.37.3 In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220913_100159_248148_7ED36B37 X-CRM114-Status: GOOD ( 17.54 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org This is a preliminary patch to introduce mt7986 hw packet engine. Tested-by: Daniel Golle 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;