From patchwork Fri Nov 10 08:13:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karthikeyan Periyasamy X-Patchwork-Id: 13452690 X-Patchwork-Delegate: kvalo@adurom.com 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 66485C4332F for ; Fri, 10 Nov 2023 18:37:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344930AbjKJSfh (ORCPT ); Fri, 10 Nov 2023 13:35:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53324 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345518AbjKJSfC (ORCPT ); Fri, 10 Nov 2023 13:35:02 -0500 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F08469005 for ; Fri, 10 Nov 2023 00:13:42 -0800 (PST) Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3AA7iJxD016329; Fri, 10 Nov 2023 08:13:41 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=qcppdkim1; bh=6SwtnFo/CZ8Zi8axnPpg6znmsZnRXrE3zcZOY3F4IFM=; b=hu98IKQUdZw7aA5lY+p9nVUNw2aIbE56aQc0mZP7gqWS1MAq9SkJ58Lpq1EUt/U71JUP geWA6FtxpL1Mr7Pefz3a4g5XYbh55hHPfoaJQRiV1akfwYboVpeHHPMGLXlNSZC/N2S8 wUNUJKS/1TmzzdIeCAioppW3gqfOJ4sO3VohaKG10/DEaCwWq0ABDJ/SJ5Q5XfINa3bF HOmMUeQ8FJll2fl5m/IdFkJfi73ZUL/U293Cz8DSzEhG84pCyQPdPgxfPsmKrRpA4/R5 QdjpaAheTzPXyUTucdAzuLCUf5WF0vD34vyZtas5TOssT22GHu/GsYH0jDDBYTUtOxPC /w== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3u93tq9kr0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 10 Nov 2023 08:13:40 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA05.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 3AA8DeGF021942 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 10 Nov 2023 08:13:40 GMT Received: from periyasa-linux.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.39; Fri, 10 Nov 2023 00:13:38 -0800 From: Karthikeyan Periyasamy To: CC: , Karthikeyan Periyasamy Subject: [PATCH 3/4] wifi: ath12k: avoid explicit HW conversion argument in Rxdma replenish Date: Fri, 10 Nov 2023 13:43:16 +0530 Message-ID: <20231110081317.19608-4-quic_periyasa@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20231110081317.19608-1-quic_periyasa@quicinc.com> References: <20231110081317.19608-1-quic_periyasa@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: IYtxxfztZTZuPnzvypb1SongWzCg-45d X-Proofpoint-ORIG-GUID: IYtxxfztZTZuPnzvypb1SongWzCg-45d X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.987,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-11-10_04,2023-11-09_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_spam policy=outbound score=58 lowpriorityscore=0 mlxscore=58 suspectscore=0 clxscore=1015 priorityscore=1501 mlxlogscore=-13 spamscore=58 phishscore=0 impostorscore=0 bulkscore=0 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2311100068 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Currently Rxdma replenish require HW conversion argument which is unnecessary argument since ath12k driver configures the Rxdma only in HW conversion. To optimize the rx data path per packet, avoid the explicit unnecessary argument and condition check in the rx replenish. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00125-QCAHKSWPL_SILICONZ-1 Signed-off-by: Karthikeyan Periyasamy --- drivers/net/wireless/ath/ath12k/dp.c | 3 +- drivers/net/wireless/ath/ath12k/dp_rx.c | 78 +++++++++---------------- drivers/net/wireless/ath/ath12k/dp_rx.h | 3 +- 3 files changed, 31 insertions(+), 53 deletions(-) diff --git a/drivers/net/wireless/ath/ath12k/dp.c b/drivers/net/wireless/ath/ath12k/dp.c index f3c48aa9f62d..26be6818f4ed 100644 --- a/drivers/net/wireless/ath/ath12k/dp.c +++ b/drivers/net/wireless/ath/ath12k/dp.c @@ -961,8 +961,7 @@ int ath12k_dp_service_srng(struct ath12k_base *ab, struct ath12k_dp *dp = &ab->dp; struct dp_rxdma_ring *rx_ring = &dp->rx_refill_buf_ring; - ath12k_dp_rx_bufs_replenish(ab, rx_ring, 0, - true); + ath12k_dp_rx_bufs_replenish(ab, rx_ring, 0); } /* TODO: Implement handler for other interrupts */ diff --git a/drivers/net/wireless/ath/ath12k/dp_rx.c b/drivers/net/wireless/ath/ath12k/dp_rx.c index 46fa8ee14b45..0c47a242cdd8 100644 --- a/drivers/net/wireless/ath/ath12k/dp_rx.c +++ b/drivers/net/wireless/ath/ath12k/dp_rx.c @@ -258,15 +258,13 @@ static int ath12k_dp_purge_mon_ring(struct ath12k_base *ab) /* Returns number of Rx buffers replenished */ int ath12k_dp_rx_bufs_replenish(struct ath12k_base *ab, struct dp_rxdma_ring *rx_ring, - int req_entries, - bool hw_cc) + int req_entries) { struct ath12k_buffer_addr *desc; struct hal_srng *srng; struct sk_buff *skb; int num_free; int num_remain; - int buf_id; u32 cookie; dma_addr_t paddr; struct ath12k_dp *dp = &ab->dp; @@ -307,40 +305,29 @@ int ath12k_dp_rx_bufs_replenish(struct ath12k_base *ab, if (dma_mapping_error(ab->dev, paddr)) goto fail_free_skb; - if (hw_cc) { - spin_lock_bh(&dp->rx_desc_lock); - - /* Get desc from free list and store in used list - * for cleanup purposes - * - * TODO: pass the removed descs rather than - * add/read to optimize - */ - rx_desc = list_first_entry_or_null(&dp->rx_desc_free_list, - struct ath12k_rx_desc_info, - list); - if (!rx_desc) { - spin_unlock_bh(&dp->rx_desc_lock); - goto fail_dma_unmap; - } - - rx_desc->skb = skb; - cookie = rx_desc->cookie; - list_del(&rx_desc->list); - list_add_tail(&rx_desc->list, &dp->rx_desc_used_list); + spin_lock_bh(&dp->rx_desc_lock); + /* Get desc from free list and store in used list + * for cleanup purposes + * + * TODO: pass the removed descs rather than + * add/read to optimize + */ + rx_desc = list_first_entry_or_null(&dp->rx_desc_free_list, + struct ath12k_rx_desc_info, + list); + if (!rx_desc) { spin_unlock_bh(&dp->rx_desc_lock); - } else { - spin_lock_bh(&rx_ring->idr_lock); - buf_id = idr_alloc(&rx_ring->bufs_idr, skb, 0, - rx_ring->bufs_max * 3, GFP_ATOMIC); - spin_unlock_bh(&rx_ring->idr_lock); - if (buf_id < 0) - goto fail_dma_unmap; - cookie = u32_encode_bits(buf_id, - DP_RXDMA_BUF_COOKIE_BUF_ID); + goto fail_dma_unmap; } + rx_desc->skb = skb; + cookie = rx_desc->cookie; + list_del(&rx_desc->list); + list_add_tail(&rx_desc->list, &dp->rx_desc_used_list); + + spin_unlock_bh(&dp->rx_desc_lock); + desc = ath12k_hal_srng_src_get_next_entry(ab, srng); if (!desc) goto fail_buf_unassign; @@ -359,17 +346,11 @@ int ath12k_dp_rx_bufs_replenish(struct ath12k_base *ab, return req_entries - num_remain; fail_buf_unassign: - if (hw_cc) { - spin_lock_bh(&dp->rx_desc_lock); - list_del(&rx_desc->list); - list_add_tail(&rx_desc->list, &dp->rx_desc_free_list); - rx_desc->skb = NULL; - spin_unlock_bh(&dp->rx_desc_lock); - } else { - spin_lock_bh(&rx_ring->idr_lock); - idr_remove(&rx_ring->bufs_idr, buf_id); - spin_unlock_bh(&rx_ring->idr_lock); - } + spin_lock_bh(&dp->rx_desc_lock); + list_del(&rx_desc->list); + list_add_tail(&rx_desc->list, &dp->rx_desc_free_list); + rx_desc->skb = NULL; + spin_unlock_bh(&dp->rx_desc_lock); fail_dma_unmap: dma_unmap_single(ab->dev, paddr, skb->len + skb_tailroom(skb), DMA_FROM_DEVICE); @@ -435,8 +416,7 @@ static int ath12k_dp_rxdma_ring_buf_setup(struct ath12k_base *ab, if ((ringtype == HAL_RXDMA_MONITOR_BUF) || (ringtype == HAL_TX_MONITOR_BUF)) ath12k_dp_mon_buf_replenish(ab, rx_ring, num_entries); else - ath12k_dp_rx_bufs_replenish(ab, rx_ring, num_entries, - ringtype == HAL_RXDMA_BUF); + ath12k_dp_rx_bufs_replenish(ab, rx_ring, num_entries); return 0; } @@ -2708,7 +2688,7 @@ int ath12k_dp_rx_process(struct ath12k_base *ab, int ring_id, if (!total_msdu_reaped) goto exit; - ath12k_dp_rx_bufs_replenish(ab, rx_ring, num_buffs_reaped, true); + ath12k_dp_rx_bufs_replenish(ab, rx_ring, num_buffs_reaped); ath12k_dp_rx_process_received_packets(ab, napi, &msdu_list, ring_id); @@ -3486,7 +3466,7 @@ int ath12k_dp_rx_process_err(struct ath12k_base *ab, struct napi_struct *napi, rx_ring = &dp->rx_refill_buf_ring; - ath12k_dp_rx_bufs_replenish(ab, rx_ring, tot_n_bufs_reaped, true); + ath12k_dp_rx_bufs_replenish(ab, rx_ring, tot_n_bufs_reaped); return tot_n_bufs_reaped; } @@ -3799,7 +3779,7 @@ int ath12k_dp_rx_process_wbm_err(struct ath12k_base *ab, if (!num_buffs_reaped) goto done; - ath12k_dp_rx_bufs_replenish(ab, rx_ring, num_buffs_reaped, true); + ath12k_dp_rx_bufs_replenish(ab, rx_ring, num_buffs_reaped); rcu_read_lock(); for (i = 0; i < ab->num_radios; i++) { diff --git a/drivers/net/wireless/ath/ath12k/dp_rx.h b/drivers/net/wireless/ath/ath12k/dp_rx.h index 14f20977c9de..b0c5352ac6e6 100644 --- a/drivers/net/wireless/ath/ath12k/dp_rx.h +++ b/drivers/net/wireless/ath/ath12k/dp_rx.h @@ -118,8 +118,7 @@ int ath12k_dp_rx_process(struct ath12k_base *ab, int mac_id, int budget); int ath12k_dp_rx_bufs_replenish(struct ath12k_base *ab, struct dp_rxdma_ring *rx_ring, - int req_entries, - bool hw_cc); + int req_entries); int ath12k_dp_rx_pdev_mon_attach(struct ath12k *ar); int ath12k_dp_rx_peer_frag_setup(struct ath12k *ar, const u8 *peer_mac, int vdev_id);