From patchwork Sat Nov 11 04:39:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karthikeyan Periyasamy X-Patchwork-Id: 13452984 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 0B6E1C4167D for ; Sat, 11 Nov 2023 04:40:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230289AbjKKEkH (ORCPT ); Fri, 10 Nov 2023 23:40:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51764 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230288AbjKKEkF (ORCPT ); Fri, 10 Nov 2023 23:40:05 -0500 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 083E33C30 for ; Fri, 10 Nov 2023 20:40:01 -0800 (PST) Received: from pps.filterd (m0279873.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3AB4dZEq031054; Sat, 11 Nov 2023 04:39:59 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=QtN2qqfr5A81PvJ22qJzxbn9n1hS4zkQFPNS2YTtnUM=; b=bzFn/5K9VTedducm36kP5noOMnilFw4BNrCOR/rhj1bB2OZ9L8BWASQ1Xl4EKElfxtU0 ng4UfYyd4YstrW5eZArynFwnuj5anvLXpdDl6ZIYA9HOj5lcsdknRJ1blZQMEtd1Hb8j JJtUyh57HtmEB4ZI9LTwZuD0ZfrFdhncxOZUcVnSnVgqxIs/QEvxtDwksKfiD0lbU9Jh FYLHWWc4I32obxJvaLs/AvaXMyo5558zkfJrK4sl4U6jzzHP0wNRaaMt5kw3Y+W2QL2X 963fI03dMke/vZhvanI+nHcIEwfgGtrd6A94SCs4mINzwc5XQDILybg8X+3w38s4nPMG 3w== Received: from nalasppmta01.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3u9xytra51-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 11 Nov 2023 04:39:58 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 3AB4dv1M002010 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 11 Nov 2023 04:39:57 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 20:39:56 -0800 From: Karthikeyan Periyasamy To: CC: , Karthikeyan Periyasamy Subject: [PATCH v2 3/4] wifi: ath12k: avoid explicit HW conversion argument in Rxdma replenish Date: Sat, 11 Nov 2023 10:09:33 +0530 Message-ID: <20231111043934.20485-4-quic_periyasa@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20231111043934.20485-1-quic_periyasa@quicinc.com> References: <20231111043934.20485-1-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: 5mIN1d8RTQgHljHodf9aPoiW9K1MlDJ1 X-Proofpoint-ORIG-GUID: 5mIN1d8RTQgHljHodf9aPoiW9K1MlDJ1 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=2023-11-11_01,2023-11-09_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_spam policy=outbound score=58 lowpriorityscore=0 suspectscore=0 spamscore=58 malwarescore=0 priorityscore=1501 bulkscore=0 adultscore=0 mlxscore=58 phishscore=0 impostorscore=0 mlxlogscore=-13 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2311110036 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 Acked-by: Jeff Johnson --- 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 6bd16dbef2ef..a6f81f2f97ef 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 94e04b65bb64..2098a5f8fb70 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 b0fb806a3b14..05b3d5581dbe 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);