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[209.132.180.67]) by mx.google.com with ESMTP id l6si12007824pgg.489.2019.08.20.04.55.43; Tue, 20 Aug 2019 04:55:57 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-wireless-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@codeaurora.org header.s=default header.b=PzOV4fUb; dkim=pass header.i=@codeaurora.org header.s=default header.b=K9re4QjF; spf=pass (google.com: best guess record for domain of linux-wireless-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-wireless-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729576AbfHTLzd (ORCPT + 99 others); Tue, 20 Aug 2019 07:55:33 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:49386 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727006AbfHTLzc (ORCPT ); Tue, 20 Aug 2019 07:55:32 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 6A37360E75; Tue, 20 Aug 2019 11:55:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1566302131; bh=rytw0fLV40QrecWzvPVaVTnLUKUJqHNsyK/0vuVnv7c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PzOV4fUbr+/pNAsZXb2sWRgWYb/s+PB67IxiL5004n8eWtvXlYsk0zGTgRzBb2P0c DE7XTiT8sQidCC7MYeJXsM7WaOoPYVfIa1gIKId0qdgrWWzU8hlkSDH7GCaF4m+739 yS4OnjXzyO5E/4a2R2ZghTjAp4GrB2+Yill+v+JA= X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.7 required=2.0 tests=ALL_TRUSTED,BAYES_00, DKIM_INVALID,DKIM_SIGNED,SPF_NONE autolearn=no autolearn_force=no version=3.4.0 Received: from wgong-HP-Z240-SFF-Workstation.qca.qualcomm.com (unknown [180.166.53.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: wgong@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 4931F608CC; Tue, 20 Aug 2019 11:55:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1566302130; bh=rytw0fLV40QrecWzvPVaVTnLUKUJqHNsyK/0vuVnv7c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=K9re4QjFexq/DOJevARDOZ2lEUPRyE0PkGljHuB/N4bJ7I8YkJVHHmd+P8aaUFfAz IMNc31emqPzuWo5sjKkheJtThwX8vkM7iJXsDS7TWUrLhcjywimHLT5hKvvyWQO1Ko l1PUdHpqXyhWRS0OschaxcHA94dvosSJpS6UGJLQ= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 4931F608CC Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=wgong@codeaurora.org From: Wen Gong To: ath10k@lists.infradead.org Cc: linux-wireless@vger.kernel.org Subject: [PATCH 4/7] ath10k: disable TX complete indication of htt for sdio Date: Tue, 20 Aug 2019 19:55:05 +0800 Message-Id: <1566302108-18219-5-git-send-email-wgong@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1566302108-18219-1-git-send-email-wgong@codeaurora.org> References: <1566302108-18219-1-git-send-email-wgong@codeaurora.org> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Tx complete message from firmware cost bus bandwidth of sdio, and bus bandwidth is the bollteneck of throughput, it will effect the bandwidth occupancy of data packet of TX and RX. This patch disable TX complete indication from firmware for htt data packet, it results in significant performance improvement on TX path. The downside of this patch is ath10k will not know the TX status of the data packet for poor signal situation. Although upper network stack or application layer have retry mechanism, the retry will be later than ath10k get the TX fail status if not disable TX complete. This patch only effect sdio chip, it will not effect PCI, SNOC etc. Tested with QCA6174 SDIO with firmware WLAN.RMH.4.4.1-00007-QCARMSWP-1. Signed-off-by: Wen Gong --- drivers/net/wireless/ath/ath10k/core.c | 6 +++++ drivers/net/wireless/ath/ath10k/hif.h | 9 ++++++++ drivers/net/wireless/ath/ath10k/htc.c | 11 +++++++++ drivers/net/wireless/ath/ath10k/htc.h | 3 +++ drivers/net/wireless/ath/ath10k/htt.c | 5 +++++ drivers/net/wireless/ath/ath10k/htt.h | 13 ++++++++++- drivers/net/wireless/ath/ath10k/htt_rx.c | 38 +++++++++++++++++++++++++++++++- drivers/net/wireless/ath/ath10k/htt_tx.c | 30 +++++++++++++++++++++++++ drivers/net/wireless/ath/ath10k/hw.h | 2 +- drivers/net/wireless/ath/ath10k/sdio.c | 28 +++++++++++++++++++++++ 10 files changed, 142 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c index dc45d16..762bba0 100644 --- a/drivers/net/wireless/ath/ath10k/core.c +++ b/drivers/net/wireless/ath/ath10k/core.c @@ -30,6 +30,7 @@ static unsigned int ath10k_cryptmode_param; static bool uart_print; +static bool disable_tx_comp = true; static bool skip_otp; static bool rawmode; static bool fw_diag_log; @@ -41,6 +42,9 @@ module_param_named(debug_mask, ath10k_debug_mask, uint, 0644); module_param_named(cryptmode, ath10k_cryptmode_param, uint, 0644); module_param(uart_print, bool, 0644); + +/* If upper layer need the TX complete status, it can enable tx complete */ +module_param(disable_tx_comp, bool, 0644); module_param(skip_otp, bool, 0644); module_param(rawmode, bool, 0644); module_param(fw_diag_log, bool, 0644); @@ -689,6 +693,8 @@ static void ath10k_init_sdio(struct ath10k *ar, enum ath10k_firmware_mode mode) * is used for SDIO. disable it until fixed */ param &= ~HI_ACS_FLAGS_SDIO_REDUCE_TX_COMPL_SET; + if (disable_tx_comp) + param |= HI_ACS_FLAGS_SDIO_REDUCE_TX_COMPL_SET; /* Alternate credit size of 1544 as used by SDIO firmware is * not big enough for mac80211 / native wifi frames. disable it diff --git a/drivers/net/wireless/ath/ath10k/hif.h b/drivers/net/wireless/ath/ath10k/hif.h index 496ee34..0dd8973 100644 --- a/drivers/net/wireless/ath/ath10k/hif.h +++ b/drivers/net/wireless/ath/ath10k/hif.h @@ -56,6 +56,8 @@ struct ath10k_hif_ops { int (*swap_mailbox)(struct ath10k *ar); + int (*get_htt_tx_complete)(struct ath10k *ar); + int (*map_service_to_pipe)(struct ath10k *ar, u16 service_id, u8 *ul_pipe, u8 *dl_pipe); @@ -144,6 +146,13 @@ static inline int ath10k_hif_swap_mailbox(struct ath10k *ar) return 0; } +static inline int ath10k_hif_get_htt_tx_complete(struct ath10k *ar) +{ + if (ar->hif.ops->get_htt_tx_complete) + return ar->hif.ops->get_htt_tx_complete(ar); + return 0; +} + static inline int ath10k_hif_map_service_to_pipe(struct ath10k *ar, u16 service_id, u8 *ul_pipe, u8 *dl_pipe) diff --git a/drivers/net/wireless/ath/ath10k/htc.c b/drivers/net/wireless/ath/ath10k/htc.c index 1d4d1a1..7357a5a 100644 --- a/drivers/net/wireless/ath/ath10k/htc.c +++ b/drivers/net/wireless/ath/ath10k/htc.c @@ -660,6 +660,17 @@ int ath10k_htc_wait_target(struct ath10k_htc *htc) return 0; } +void ath10k_htc_change_tx_credit_flow(struct ath10k_htc *htc, + enum ath10k_htc_ep_id eid, + bool enable) +{ + struct ath10k *ar = htc->ar; + struct ath10k_htc_ep *ep; + + ep = &ar->htc.endpoint[eid]; + ep->tx_credit_flow_enabled = enable; +} + int ath10k_htc_connect_service(struct ath10k_htc *htc, struct ath10k_htc_svc_conn_req *conn_req, struct ath10k_htc_svc_conn_resp *conn_resp) diff --git a/drivers/net/wireless/ath/ath10k/htc.h b/drivers/net/wireless/ath/ath10k/htc.h index 8c79b9e..78bc3ae 100644 --- a/drivers/net/wireless/ath/ath10k/htc.h +++ b/drivers/net/wireless/ath/ath10k/htc.h @@ -367,6 +367,9 @@ struct ath10k_htc { int ath10k_htc_connect_service(struct ath10k_htc *htc, struct ath10k_htc_svc_conn_req *conn_req, struct ath10k_htc_svc_conn_resp *conn_resp); +void ath10k_htc_change_tx_credit_flow(struct ath10k_htc *htc, + enum ath10k_htc_ep_id eid, + bool enable); int ath10k_htc_send(struct ath10k_htc *htc, enum ath10k_htc_ep_id eid, struct sk_buff *packet); struct sk_buff *ath10k_htc_alloc_skb(struct ath10k *ar, int size); diff --git a/drivers/net/wireless/ath/ath10k/htt.c b/drivers/net/wireless/ath/ath10k/htt.c index 7b75200..88f3321 100644 --- a/drivers/net/wireless/ath/ath10k/htt.c +++ b/drivers/net/wireless/ath/ath10k/htt.c @@ -10,6 +10,7 @@ #include "htt.h" #include "core.h" #include "debug.h" +#include "hif.h" static const enum htt_t2h_msg_type htt_main_t2h_msg_types[] = { [HTT_MAIN_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF, @@ -153,6 +154,10 @@ int ath10k_htt_connect(struct ath10k_htt *htt) htt->eid = conn_resp.eid; + htt->disable_tx_comple = ath10k_hif_get_htt_tx_complete(htt->ar); + if (htt->disable_tx_comple) + ath10k_htc_change_tx_credit_flow(&htt->ar->htc, htt->eid, true); + return 0; } diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h index 30c0800..cf97be5 100644 --- a/drivers/net/wireless/ath/ath10k/htt.h +++ b/drivers/net/wireless/ath/ath10k/htt.h @@ -150,9 +150,19 @@ enum htt_data_tx_desc_flags1 { HTT_DATA_TX_DESC_FLAGS1_MORE_IN_BATCH = 1 << 12, HTT_DATA_TX_DESC_FLAGS1_CKSUM_L3_OFFLOAD = 1 << 13, HTT_DATA_TX_DESC_FLAGS1_CKSUM_L4_OFFLOAD = 1 << 14, - HTT_DATA_TX_DESC_FLAGS1_RSVD1 = 1 << 15 + HTT_DATA_TX_DESC_FLAGS1_TX_COMPLETE = 1 << 15 }; +#define HTT_TX_CREDIT_DELTA_ABS_M 0xffff0000 +#define HTT_TX_CREDIT_DELTA_ABS_S 16 +#define HTT_TX_CREDIT_DELTA_ABS_GET(word) \ + (((word) & HTT_TX_CREDIT_DELTA_ABS_M) >> HTT_TX_CREDIT_DELTA_ABS_S) + +#define HTT_TX_CREDIT_SIGN_BIT_M 0x00000100 +#define HTT_TX_CREDIT_SIGN_BIT_S 8 +#define HTT_TX_CREDIT_SIGN_BIT_GET(word) \ + (((word) & HTT_TX_CREDIT_SIGN_BIT_M) >> HTT_TX_CREDIT_SIGN_BIT_S) + enum htt_data_tx_ext_tid { HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST = 16, HTT_DATA_TX_EXT_TID_MGMT = 17, @@ -2019,6 +2029,7 @@ struct ath10k_htt { bool tx_mem_allocated; const struct ath10k_htt_tx_ops *tx_ops; const struct ath10k_htt_rx_ops *rx_ops; + bool disable_tx_comple; }; struct ath10k_htt_tx_ops { diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c index 83a7fb6..d808824 100644 --- a/drivers/net/wireless/ath/ath10k/htt_rx.c +++ b/drivers/net/wireless/ath/ath10k/htt_rx.c @@ -3691,6 +3691,9 @@ bool ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb) } case HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION: { struct htt_tx_done tx_done = {}; + struct ath10k_htt *htt = &ar->htt; + struct ath10k_htc *htc = &ar->htc; + struct ath10k_htc_ep *ep = &ar->htc.endpoint[htt->eid]; int status = __le32_to_cpu(resp->mgmt_tx_completion.status); int info = __le32_to_cpu(resp->mgmt_tx_completion.info); @@ -3716,6 +3719,12 @@ bool ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb) break; } + if (htt->disable_tx_comple) { + spin_lock_bh(&htc->tx_lock); + ep->tx_credits++; + spin_unlock_bh(&htc->tx_lock); + } + status = ath10k_txrx_tx_unref(htt, &tx_done); if (!status) { spin_lock_bh(&htt->tx_lock); @@ -3790,7 +3799,34 @@ bool ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb) skb_queue_tail(&htt->rx_in_ord_compl_q, skb); return false; } - case HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND: + case HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND:{ + struct ath10k_htt *htt = &ar->htt; + struct ath10k_htc *htc = &ar->htc; + struct ath10k_htc_ep *ep = &ar->htc.endpoint[htt->eid]; + u32 *msg_word; + u32 htt_credit_delta_abs; + int htt_credit_delta; + int sign; + + msg_word = (u32 *)resp; + htt_credit_delta_abs = HTT_TX_CREDIT_DELTA_ABS_GET(*msg_word); + sign = HTT_TX_CREDIT_SIGN_BIT_GET(*msg_word) ? -1 : 1; + htt_credit_delta = sign * htt_credit_delta_abs; + + ath10k_dbg(ar, ATH10K_DBG_HTT, + "credit update: abs:%d, sign:%d, delta:%d\n", + htt_credit_delta_abs, sign, htt_credit_delta); + + if (htt->disable_tx_comple) { + spin_lock_bh(&htc->tx_lock); + ep->tx_credits += htt_credit_delta; + spin_unlock_bh(&htc->tx_lock); + ath10k_dbg(ar, ATH10K_DBG_HTT, + "credit total:%d\n", + ep->tx_credits); + } + break; + } break; case HTT_T2H_MSG_TYPE_CHAN_CHANGE: { u32 phymode = __le32_to_cpu(resp->chan_change.phymode); diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c index 2ef717f1..cda8a59 100644 --- a/drivers/net/wireless/ath/ath10k/htt_tx.c +++ b/drivers/net/wireless/ath/ath10k/htt_tx.c @@ -543,7 +543,33 @@ void ath10k_htt_tx_free(struct ath10k_htt *htt) void ath10k_htt_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb) { + struct ath10k_htt *htt = &ar->htt; + struct htt_tx_done tx_done = {0}; + struct htt_cmd_hdr *htt_hdr; + struct htt_data_tx_desc *desc_hdr; + u16 flags1; + dev_kfree_skb_any(skb); + + if (htt->disable_tx_comple) { + htt_hdr = (struct htt_cmd_hdr *)skb->data; + if (htt_hdr->msg_type == HTT_H2T_MSG_TYPE_TX_FRM) { + desc_hdr = (struct htt_data_tx_desc *) + (skb->data + sizeof(*htt_hdr)); + flags1 = __le16_to_cpu(desc_hdr->flags1); + + ath10k_dbg(ar, ATH10K_DBG_HTT, + "ath10k_htt_htc_tx_complete msdu id:%u ,flags1:%x\n", + __le16_to_cpu(desc_hdr->id), flags1); + + if (flags1 & HTT_DATA_TX_DESC_FLAGS1_TX_COMPLETE) + return; + + tx_done.status = HTT_TX_COMPL_STATE_ACK; + tx_done.msdu_id = __le16_to_cpu(desc_hdr->id); + ath10k_txrx_tx_unref(&ar->htt, &tx_done); + } + } } void ath10k_htt_hif_tx_complete(struct ath10k *ar, struct sk_buff *skb) @@ -1260,6 +1286,10 @@ static int ath10k_htt_tx_hl(struct ath10k_htt *htt, enum ath10k_hw_txrx_mode txm case ATH10K_HW_TXRX_MGMT: flags0 |= SM(ATH10K_HW_TXRX_MGMT, HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE); + + if (htt->disable_tx_comple) + flags1 |= HTT_DATA_TX_DESC_FLAGS1_TX_COMPLETE; + flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT; break; } diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h index 2ae57c1..6349665 100644 --- a/drivers/net/wireless/ath/ath10k/hw.h +++ b/drivers/net/wireless/ath/ath10k/hw.h @@ -759,7 +759,7 @@ struct ath10k_hw_ops { #define TARGET_TLV_NUM_TDLS_VDEVS 1 #define TARGET_TLV_NUM_TIDS ((TARGET_TLV_NUM_PEERS) * 2) #define TARGET_TLV_NUM_MSDU_DESC (1024 + 32) -#define TARGET_TLV_NUM_MSDU_DESC_HL 64 +#define TARGET_TLV_NUM_MSDU_DESC_HL 1024 #define TARGET_TLV_NUM_WOW_PATTERNS 22 #define TARGET_TLV_MGMT_NUM_MSDU_DESC (50) diff --git a/drivers/net/wireless/ath/ath10k/sdio.c b/drivers/net/wireless/ath/ath10k/sdio.c index f42aca6..4d6da04 100644 --- a/drivers/net/wireless/ath/ath10k/sdio.c +++ b/drivers/net/wireless/ath/ath10k/sdio.c @@ -1790,6 +1790,33 @@ static int ath10k_sdio_hif_swap_mailbox(struct ath10k *ar) return 0; } +static int ath10k_sdio_get_htt_tx_complete(struct ath10k *ar) +{ + u32 addr, val; + int ret = 0; + + addr = host_interest_item_address(HI_ITEM(hi_acs_flags)); + + ret = ath10k_sdio_hif_diag_read32(ar, addr, &val); + if (ret) { + ath10k_warn(ar, + "unable to read hi_acs_flags for htt tx comple : %d\n", ret); + return ret; + } + + if (val & HI_ACS_FLAGS_SDIO_REDUCE_TX_COMPL_FW_ACK) { + ath10k_dbg(ar, ATH10K_DBG_SDIO, + "sdio reduce tx comple fw ack\n"); + ret = 1; + } else { + ath10k_dbg(ar, ATH10K_DBG_SDIO, + "sdio reduce tx comple fw not ack\n"); + ret = 0; + } + + return ret; +} + /* HIF start/stop */ static int ath10k_sdio_hif_start(struct ath10k *ar) @@ -2073,6 +2100,7 @@ static void ath10k_sdio_hif_send_complete_check(struct ath10k *ar, .start = ath10k_sdio_hif_start, .stop = ath10k_sdio_hif_stop, .swap_mailbox = ath10k_sdio_hif_swap_mailbox, + .get_htt_tx_complete = ath10k_sdio_get_htt_tx_complete, .map_service_to_pipe = ath10k_sdio_hif_map_service_to_pipe, .get_default_pipe = ath10k_sdio_hif_get_default_pipe, .send_complete_check = ath10k_sdio_hif_send_complete_check, -- 1.9.1