From patchwork Fri Aug 9 09:44:54 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Lin X-Patchwork-Id: 13758608 X-Patchwork-Delegate: kvalo@adurom.com Received: from AS8PR04CU009.outbound.protection.outlook.com (mail-westeuropeazon11011004.outbound.protection.outlook.com [52.101.70.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E6E9D192B74; Fri, 9 Aug 2024 09:46:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.70.4 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723196768; cv=fail; b=QJJkNC71ieI0YOELEpfnqEcg6A1aytjosEwYBfLhx+s+uSQZrkcLEWcPDvA3fy/OwCCf5TQehMpZ1OhVv5BIbCSNqwNs4AilQAqiw1hgjtg1XRT6hCuwUounrbJnagPp7B67b1UFRdHxgbw2xjKntO5CPxGzVk014O38tRwuLek= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723196768; c=relaxed/simple; bh=7P/LnuSYSLdNtiA2kaRD2ylmDoBGn0TwKl7rF6BuZGA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: Content-Type:MIME-Version; b=nf7LwmI4cOxrwaq809KFnXq7sBj0AnnQAqgOa8G8kG0f5gNykrTwukrxewo7NakajkLvJX1+bUH09Xm6KPG3kwGrRxJeCapPQVNTcB8IEE0m/pFcpO9mbhXl27IC+ZhwE9BZ7CL5/S0u6QmjWaVNSbbjRWMcncZiVF2HwD5Bpdc= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com; spf=pass smtp.mailfrom=nxp.com; dkim=pass (2048-bit key) header.d=nxp.com header.i=@nxp.com header.b=NKJINOM1; arc=fail smtp.client-ip=52.101.70.4 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=nxp.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=nxp.com header.i=@nxp.com header.b="NKJINOM1" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=Yj5QNB9Z6n9nCZ2hTQb+NVeiymN/X7tTAJa5VCD82ypyMBSSNzlvnEoA1oVRfw94tlhtKnsJp60V/c3spsMYWHpGgvnBWwgsrcMZnll3iwAywbtUt5tBbXE6EPuNJH0bffWFqbfIgyJ6kIXSkqeqanAiWfEKpAt3ilp72ANEeP+jmvtfpFtfUSrTbKoNTzQOrU5dzLnvhpri4RDqUMstkYm+sXhYOq3WfvCUFhMoicl1lHUELW7M0Bd1X44CYYXaUAaZzUJ/zIKoggUybd4pqSCW85Om+ENZ0dqgkeVZ0Fj4qd33k+g1zOTHMvIqAwddx8649PQHrwuRXYolh5lsJw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=x8/p8snz+4NkzgjaCyakojmj4QeDZLgn/yHswc5j4zE=; b=nIYFPr3cCjlHxOF2iLdrnH1f01USJkXZLfv1YnmWbO9E3Okly7qvo7hkY+bm5gKYKr21SLPaGK9EYZAvLGq4wweb6I9knpPBSwBemM7gcKqm0BrjF1ma7LvjawcevWgqUNrcnbk4Ub1OAVboMTe5lOmER7zxBxy3pDwn87DOfdO887WCZwp9QhjLL6zI2NT9S6eOnKDuBbcRAH8GQlZv6ZG58rhBFtktx0Gqpe2aojxoMtLSBzg2jYcGXv8QulTx9y/GaStIooNVcbb+RlELGYePB+X2iv0QBDqAm58xjrF2CuE00ZY/bwbcaKuk52WxtwrUy/c3UdcJw8zlrX0v1g== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=x8/p8snz+4NkzgjaCyakojmj4QeDZLgn/yHswc5j4zE=; b=NKJINOM1H9a3jzTkGTlsX8hKodUvFe1qte6kcbgcMZToAUfijWXP17RBqnbwHePevyWiRPKFyr8fvPyX6d1u/XYwKHt5v6o+f0WQqtQC3Ibv/w9gSNQLst+v4wraJG0Q2SWoQxOCr/4niexAs5HBVSO07pW1jjxrL3PpvrzMFqOVoGrR4aLaxiYj48gyloh7ZHo+4kbirTKdW/HQcemAFHOo3TIxs4niXoogHuG0KGe2SdkABQaqagrUbkfIcq2Zni2Trd7z7n/s4dLCrhEH1UdpbUgloC+YhNj+ehhSwXhRAqTlh2nhI4kOCFfsI69MaXh31pFIuvubP0XMrUNI/g== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from PA4PR04MB9638.eurprd04.prod.outlook.com (2603:10a6:102:273::20) by PAXPR04MB9229.eurprd04.prod.outlook.com (2603:10a6:102:2bd::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7828.26; Fri, 9 Aug 2024 09:46:03 +0000 Received: from PA4PR04MB9638.eurprd04.prod.outlook.com ([fe80::f950:3bb6:6848:2257]) by PA4PR04MB9638.eurprd04.prod.outlook.com ([fe80::f950:3bb6:6848:2257%5]) with mapi id 15.20.7828.023; Fri, 9 Aug 2024 09:46:03 +0000 From: David Lin To: linux-wireless@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kvalo@kernel.org, johannes@sipsolutions.net, briannorris@chromium.org, francesco@dolcini.it, tsung-hsien.hsieh@nxp.com, David Lin Subject: [PATCH v2 04/43] wifi: nxpwifi: add 11n_aggr.c Date: Fri, 9 Aug 2024 17:44:54 +0800 Message-Id: <20240809094533.1660-5-yu-hao.lin@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240809094533.1660-1-yu-hao.lin@nxp.com> References: <20240809094533.1660-1-yu-hao.lin@nxp.com> X-ClientProxiedBy: TYCP286CA0178.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:3c6::9) To PA4PR04MB9638.eurprd04.prod.outlook.com (2603:10a6:102:273::20) Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PA4PR04MB9638:EE_|PAXPR04MB9229:EE_ X-MS-Office365-Filtering-Correlation-Id: ce9899f8-fea8-4b6c-f4ed-08dcb858155e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|366016|1800799024|52116014; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PA4PR04MB9638.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(376014)(366016)(1800799024)(52116014);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: ce9899f8-fea8-4b6c-f4ed-08dcb858155e X-MS-Exchange-CrossTenant-AuthSource: PA4PR04MB9638.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Aug 2024 09:46:03.6329 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: X6Y3Wy+bVr1pLwEVdHnfyaymPcaKKxqK/8cs6F51JmbBdGITD9GZy5XfwFlb4w4mjslI1kXo4nksfnea9n2OOQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PAXPR04MB9229 --- drivers/net/wireless/nxp/nxpwifi/11n_aggr.c | 276 ++++++++++++++++++++ 1 file changed, 276 insertions(+) create mode 100644 drivers/net/wireless/nxp/nxpwifi/11n_aggr.c diff --git a/drivers/net/wireless/nxp/nxpwifi/11n_aggr.c b/drivers/net/wireless/nxp/nxpwifi/11n_aggr.c new file mode 100644 index 000000000000..85ea840e6e91 --- /dev/null +++ b/drivers/net/wireless/nxp/nxpwifi/11n_aggr.c @@ -0,0 +1,276 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * NXP Wireless LAN device driver: 802.11n Aggregation + * + * Copyright 2011-2024 NXP + */ + +#include "decl.h" +#include "cfg.h" +#include "util.h" +#include "fw.h" +#include "main.h" +#include "wmm.h" +#include "11n.h" +#include "11n_aggr.h" + +/* Creates an AMSDU subframe for aggregation into one AMSDU packet. + * + * The resultant AMSDU subframe format is - + * + * +---- ~ -----+---- ~ ------+---- ~ -----+----- ~ -----+---- ~ -----+ + * | DA | SA | Length | SNAP header | MSDU | + * | data[0..5] | data[6..11] | | | data[14..] | + * +---- ~ -----+---- ~ ------+---- ~ -----+----- ~ -----+---- ~ -----+ + * <--6-bytes--> <--6-bytes--> <--2-bytes--><--8-bytes--> <--n-bytes--> + * + * This function also computes the amount of padding required to make the + * buffer length multiple of 4 bytes. + * + * Data => |DA|SA|SNAP-TYPE|........ .| + * MSDU => |DA|SA|Length|SNAP|...... ..| + */ +static int +nxpwifi_11n_form_amsdu_pkt(struct sk_buff *skb_aggr, + struct sk_buff *skb_src, int *pad) + +{ + int dt_offset; + struct rfc_1042_hdr snap = { + 0xaa, /* LLC DSAP */ + 0xaa, /* LLC SSAP */ + 0x03, /* LLC CTRL */ + {0x00, 0x00, 0x00}, /* SNAP OUI */ + 0x0000 /* SNAP type */ + /* This field will be overwritten + * later with ethertype + */ + }; + struct tx_packet_hdr *tx_header; + + tx_header = skb_put(skb_aggr, sizeof(*tx_header)); + + /* Copy DA and SA */ + dt_offset = 2 * ETH_ALEN; + memcpy(&tx_header->eth803_hdr, skb_src->data, dt_offset); + + /* Copy SNAP header */ + snap.snap_type = ((struct ethhdr *)skb_src->data)->h_proto; + + dt_offset += sizeof(__be16); + + memcpy(&tx_header->rfc1042_hdr, &snap, sizeof(struct rfc_1042_hdr)); + + skb_pull(skb_src, dt_offset); + + /* Update Length field */ + tx_header->eth803_hdr.h_proto = htons(skb_src->len + LLC_SNAP_LEN); + + /* Add payload */ + skb_put_data(skb_aggr, skb_src->data, skb_src->len); + + /* Add padding for new MSDU to start from 4 byte boundary */ + *pad = (4 - ((unsigned long)skb_aggr->tail & 0x3)) % 4; + + return skb_aggr->len + *pad; +} + +/* Adds TxPD to AMSDU header. + * + * Each AMSDU packet will contain one TxPD at the beginning, + * followed by multiple AMSDU subframes. + */ +static void +nxpwifi_11n_form_amsdu_txpd(struct nxpwifi_private *priv, + struct sk_buff *skb) +{ + struct txpd *local_tx_pd; + + skb_push(skb, sizeof(*local_tx_pd)); + + local_tx_pd = (struct txpd *)skb->data; + memset(local_tx_pd, 0, sizeof(struct txpd)); + + /* Original priority has been overwritten */ + local_tx_pd->priority = (u8)skb->priority; + local_tx_pd->pkt_delay_2ms = + nxpwifi_wmm_compute_drv_pkt_delay(priv, skb); + local_tx_pd->bss_num = priv->bss_num; + local_tx_pd->bss_type = priv->bss_type; + /* Always zero as the data is followed by struct txpd */ + local_tx_pd->tx_pkt_offset = cpu_to_le16(sizeof(struct txpd)); + local_tx_pd->tx_pkt_type = cpu_to_le16(PKT_TYPE_AMSDU); + local_tx_pd->tx_pkt_length = cpu_to_le16(skb->len - + sizeof(*local_tx_pd)); + + if (local_tx_pd->tx_control == 0) + /* TxCtrl set by user or default */ + local_tx_pd->tx_control = cpu_to_le32(priv->pkt_tx_ctrl); + + if (GET_BSS_ROLE(priv) == NXPWIFI_BSS_ROLE_STA && + priv->adapter->pps_uapsd_mode) { + if (nxpwifi_check_last_packet_indication(priv)) { + priv->adapter->tx_lock_flag = true; + local_tx_pd->flags = + NXPWIFI_TxPD_POWER_MGMT_LAST_PACKET; + } + } +} + +/* Create aggregated packet. + * + * This function creates an aggregated MSDU packet, by combining buffers + * from the RA list. Each individual buffer is encapsulated as an AMSDU + * subframe and all such subframes are concatenated together to form the + * AMSDU packet. + * + * A TxPD is also added to the front of the resultant AMSDU packets for + * transmission. The resultant packets format is - + * + * +---- ~ ----+------ ~ ------+------ ~ ------+-..-+------ ~ ------+ + * | TxPD |AMSDU sub-frame|AMSDU sub-frame| .. |AMSDU sub-frame| + * | | 1 | 2 | .. | n | + * +---- ~ ----+------ ~ ------+------ ~ ------+ .. +------ ~ ------+ + */ +int +nxpwifi_11n_aggregate_pkt(struct nxpwifi_private *priv, + struct nxpwifi_ra_list_tbl *pra_list, + int ptrindex) + __releases(&priv->wmm.ra_list_spinlock) +{ + struct nxpwifi_adapter *adapter = priv->adapter; + struct sk_buff *skb_aggr, *skb_src; + struct nxpwifi_txinfo *tx_info_aggr, *tx_info_src; + int pad = 0, aggr_num = 0, ret; + struct nxpwifi_tx_param tx_param; + struct txpd *ptx_pd = NULL; + int headroom = adapter->intf_hdr_len; + + skb_src = skb_peek(&pra_list->skb_head); + if (!skb_src) { + spin_unlock_bh(&priv->wmm.ra_list_spinlock); + return 0; + } + + tx_info_src = NXPWIFI_SKB_TXCB(skb_src); + skb_aggr = nxpwifi_alloc_dma_align_buf(adapter->tx_buf_size, + GFP_ATOMIC); + if (!skb_aggr) { + spin_unlock_bh(&priv->wmm.ra_list_spinlock); + return -ENOMEM; + } + + /* skb_aggr->data already 64 byte align, just reserve bus interface + * header and txpd. + */ + skb_reserve(skb_aggr, headroom + sizeof(struct txpd)); + tx_info_aggr = NXPWIFI_SKB_TXCB(skb_aggr); + + memset(tx_info_aggr, 0, sizeof(*tx_info_aggr)); + tx_info_aggr->bss_type = tx_info_src->bss_type; + tx_info_aggr->bss_num = tx_info_src->bss_num; + + tx_info_aggr->flags |= NXPWIFI_BUF_FLAG_AGGR_PKT; + skb_aggr->priority = skb_src->priority; + skb_aggr->tstamp = skb_src->tstamp; + + do { + /* Check if AMSDU can accommodate this MSDU */ + if ((skb_aggr->len + skb_src->len + LLC_SNAP_LEN) > + adapter->tx_buf_size) + break; + + skb_src = skb_dequeue(&pra_list->skb_head); + pra_list->total_pkt_count--; + atomic_dec(&priv->wmm.tx_pkts_queued); + aggr_num++; + spin_unlock_bh(&priv->wmm.ra_list_spinlock); + nxpwifi_11n_form_amsdu_pkt(skb_aggr, skb_src, &pad); + + nxpwifi_write_data_complete(adapter, skb_src, 0, 0); + + spin_lock_bh(&priv->wmm.ra_list_spinlock); + + if (!nxpwifi_is_ralist_valid(priv, pra_list, ptrindex)) { + spin_unlock_bh(&priv->wmm.ra_list_spinlock); + return -ENOENT; + } + + if (skb_tailroom(skb_aggr) < pad) { + pad = 0; + break; + } + skb_put(skb_aggr, pad); + + skb_src = skb_peek(&pra_list->skb_head); + + } while (skb_src); + + spin_unlock_bh(&priv->wmm.ra_list_spinlock); + + /* Last AMSDU packet does not need padding */ + skb_trim(skb_aggr, skb_aggr->len - pad); + + /* Form AMSDU */ + nxpwifi_11n_form_amsdu_txpd(priv, skb_aggr); + if (GET_BSS_ROLE(priv) == NXPWIFI_BSS_ROLE_STA) + ptx_pd = (struct txpd *)skb_aggr->data; + + skb_push(skb_aggr, headroom); + tx_info_aggr->aggr_num = aggr_num * 2; + if (adapter->data_sent || adapter->tx_lock_flag) { + atomic_add(aggr_num * 2, &adapter->tx_queued); + skb_queue_tail(&adapter->tx_data_q, skb_aggr); + return 0; + } + + if (skb_src) + tx_param.next_pkt_len = skb_src->len + sizeof(struct txpd); + else + tx_param.next_pkt_len = 0; + + ret = adapter->if_ops.host_to_card(adapter, NXPWIFI_TYPE_DATA, + skb_aggr, &tx_param); + + switch (ret) { + case -EBUSY: + spin_lock_bh(&priv->wmm.ra_list_spinlock); + if (!nxpwifi_is_ralist_valid(priv, pra_list, ptrindex)) { + spin_unlock_bh(&priv->wmm.ra_list_spinlock); + nxpwifi_write_data_complete(adapter, skb_aggr, 1, -1); + return -EINVAL; + } + if (GET_BSS_ROLE(priv) == NXPWIFI_BSS_ROLE_STA && + adapter->pps_uapsd_mode && adapter->tx_lock_flag) { + priv->adapter->tx_lock_flag = false; + if (ptx_pd) + ptx_pd->flags = 0; + } + + skb_queue_tail(&pra_list->skb_head, skb_aggr); + + pra_list->total_pkt_count++; + + atomic_inc(&priv->wmm.tx_pkts_queued); + + tx_info_aggr->flags |= NXPWIFI_BUF_FLAG_REQUEUED_PKT; + spin_unlock_bh(&priv->wmm.ra_list_spinlock); + nxpwifi_dbg(adapter, ERROR, "data: -EBUSY is returned\n"); + break; + case -EINPROGRESS: + break; + case 0: + nxpwifi_write_data_complete(adapter, skb_aggr, 1, ret); + break; + default: + nxpwifi_dbg(adapter, ERROR, "%s: host_to_card failed: %#x\n", + __func__, ret); + adapter->dbg.num_tx_host_to_card_failure++; + nxpwifi_write_data_complete(adapter, skb_aggr, 1, ret); + break; + } + if (ret != -EBUSY) + nxpwifi_rotate_priolists(priv, pra_list, ptrindex); + + return 0; +}