From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (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 45EFD23C50E for ; Tue, 22 Jul 2025 09:47:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753177672; cv=none; b=QOn/9zPwwpmmJN6eUmE2D95hKPPcZpGu92DWk6ttD6olnqajzK9srpB8ggaCuIPxf8lbWICEkiT01N8WtodWfuFR7vG+7WwG5pzew5+tswAzJ33evm3GQFZ8e5wjTggk5bCzzjLpZLLlehBokbW3Jyj1DPfrNix//36mezGA1ww= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753177672; c=relaxed/simple; bh=/A5bLX16piFxZp3C1uvq7w0g/FlmchWFhW3t4OYe1G4=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=SUj9JrX0cr8AZK0z8o+TXQCFG1K0HV7JilloTC8RG0YWF3ipwFLzBpGly5ywU4fPfXQwkb3RRtUhyybpjGW3uUu+CzACYGr7tIv9HEFqxQ8U+jY4XybEuTWgE8ikMgdsNlHO1V8PvG+r8mOxaDWX14lIOfIRaBUMu2O3hy+PrfQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=bNmGnpZB; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="bNmGnpZB" Received: from pps.filterd (m0279872.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 56M83qdH010552 for ; Tue, 22 Jul 2025 09:47:50 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= 8BjM9ebfFLsQQcZe6TQ0vgUH4ajpI01hnGqNMGuQ5N4=; b=bNmGnpZBKEr/+gT+ Gf7YHgqDyL36SAGt8rwfkfYdw1+m84Sa/N8PyIrOktbzpow0609ipmsdR8zbGoTT v20gVWNzdF5F8d1S5/4ZrXGo23r7sFMTaOlqcQKYZ91x58pk6XxlYQ7eDXQuwsF1 7JKMJx8KI74TlvzC4Q5kn2Z1av2o+gkjjvgJVbFV4bfPMsXv0U39DF99xGajnJrf 0Nq6ru8p/FDV0JMnSecEVJiSy6a2hyty7wM1416WdVdZPzOoLhxzD94KKWRXzOAo XXh+LF5n5HcQL6zVRZMZKqsK54dIISctG49NJF5SEfSQFKVqzbRolryju45TWIpO ABzC8w== Received: from mail-pl1-f200.google.com (mail-pl1-f200.google.com [209.85.214.200]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4826t18asw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Tue, 22 Jul 2025 09:47:50 +0000 (GMT) Received: by mail-pl1-f200.google.com with SMTP id d9443c01a7336-237e6963f70so86737575ad.2 for ; Tue, 22 Jul 2025 02:47:49 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1753177669; x=1753782469; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=8BjM9ebfFLsQQcZe6TQ0vgUH4ajpI01hnGqNMGuQ5N4=; b=D/DnXQXMp81sLWaq1SDMuxbKuZOitEfz+S+qS5V+u1GZ0H4Xhn8vMFsYfAcZSLW1C2 xW0HvA94JQgvjnSoJiWZxb0bTq8p0LhmdVwf2RIhSkn5x7FkbgBD6M1iyKryRm0out72 NHLsen5auAyXTpsvgvMdywmFZfHLmr8jOLVN5p35crY1HTHI+Qgu/k5WeZIu+dPtDoNi RjkduXIxGNM4J04U8wvlp+HQnnbL42uV6Xra5BGriB7Q+xvv9Ju1IsZSxNSuwGhQh9vP jkRskCxcYCc1f+JtTagoBxRkOIlqtI0MYHI398t/VuzwUlKGpilcD5TIgD1AoLral4io 9yvg== X-Forwarded-Encrypted: i=1; AJvYcCVcaKLUGu9Xy5212lHGJTCTvFzbVH+QyGT0qUnqS3rp7AcVRTs2t2rXa7zdZ7shiEqG0TIGzos=@vger.kernel.org X-Gm-Message-State: AOJu0YxJMbGHFRxl2dL5RTUgoDaNkWkpq2Dx4pwAuft2kg0nkxHsbj/s tI/ORopj/iI9RxRYpRqHlGZpxJ7vSczjaseM78whqMdtk70WkNKjq6XGy9x20F/0YkuxfAbpk51 4jfAAALJQqkXhViYpcOBju3JYdu48uaAH64OnAl3pinodtmzXapYHd28fjLY= X-Gm-Gg: ASbGncta/QPyqricwgbUBXcmD8ME2WzWbdwD9iYl+realbT2TfaH92Xn7tZ+ZRm7z2C xtS+F4Aeb4iX+RPzEYQa62Ve9OI7XB+bHQUuYmwwMymt6zn7I5Bi8IAl+9wQ8dzOeCoLNYTH7FT z8bu5BIg/ukdD4G0vnqii5vUseZkz/c7igDFPBM3Jgbd/MOql4xwg3ZvGt8tOnsmXXSuVJOLzVo t6o+3QzOLi645QpD3ajULruqYjeBU43yrKHcG9eCPi0nlC1SX0a+3XMQowSHKzV/fHQXtqowXK5 kYpxEwk6NOxEE8DpjkdKQkV4TEwlBUUnO4DZCtoMWGh7aWkNec5Li9LHJWuQnDy65OCUqFv7za7 1N+FExMXqaNbJBhVbqUHfp4bhiQr71fA= X-Received: by 2002:a17:903:2d2:b0:234:c5c1:9b84 with SMTP id d9443c01a7336-23e3035f2eamr249469205ad.37.1753177668775; Tue, 22 Jul 2025 02:47:48 -0700 (PDT) X-Google-Smtp-Source: AGHT+IFb4WZW5dxHh8zGqRjkvN4xW3CSAyaaR3EwQbz0e6h/H5rEz1JsDrBRAu/UMYCUGTF2EEQHYA== X-Received: by 2002:a17:903:2d2:b0:234:c5c1:9b84 with SMTP id d9443c01a7336-23e3035f2eamr249468855ad.37.1753177668301; Tue, 22 Jul 2025 02:47:48 -0700 (PDT) Received: from [10.133.33.45] (tpe-colo-wan-fw-bordernet.qualcomm.com. [103.229.16.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-23e3b6ef9aesm72272625ad.211.2025.07.22.02.47.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 22 Jul 2025 02:47:47 -0700 (PDT) Message-ID: <1598d25d-e254-410e-ac5c-66d5450fd686@oss.qualcomm.com> Date: Tue, 22 Jul 2025 17:47:43 +0800 Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3] wifi: ath11k: HAL SRNG: don't deinitialize and re-initialize again To: Muhammad Usama Anjum , Jeff Johnson , Manikanta Pubbisetty , kbuild test robot , Julia Lawall , Sven Eckelmann , Sathishkumar Muruganandam Cc: kernel@collabora.com, stable@vger.kernel.org, Baochen Qiang , Muna Sinada , Anilkumar Kolli , Kalle Valo , Miles Hu , linux-wireless@vger.kernel.org, ath11k@lists.infradead.org, linux-kernel@vger.kernel.org References: <20250722053121.1145001-1-usama.anjum@collabora.com> Content-Language: en-US From: Baochen Qiang In-Reply-To: <20250722053121.1145001-1-usama.anjum@collabora.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: xCcJbBMF_lfJ6Aqrwj86gQwrsY4j0tSQ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNzIyMDA4MSBTYWx0ZWRfX8PUVUSYAjF0I /EahP8Q3oYmEBJ+YGsQojbsIlQQR3RVQ3Y3pKCO8Fq02vGTylvS1ARV9MDctnFdLAOursMMp02C jaWXOrOwqG6CKMnPTcWIR2rt0QXwqQGXjRcRGiImLy3BuPFVUc3RPfrcfV+zDNGHekwoWILIVeG t0kIMYXuK2BxOnq8Fw9MbngjGpQsIaL+XDUM0lydQb63wDkKa7m5x1PPds4etAzJofgznRvaC/n tHogdA7NRnQaOwi141eeiINzw80ZED2m7nPlGg4Y6cGjXwJ7L74IARpmVVDYPwSjoF8ixNVsXZN lk9+vXPV7wcR10GAMXVxfeOx4cRon5CTh3uQxAPpS20lob+HLHUHWK4Fivom4YuvzvGOIeJi12K p0RthOl+w634qGOigHEsDumZZ6R/D2iHJzLAJNXtrKUKFArTD9Hw7knqEJBi9eo5ha1oKmXJ X-Authority-Analysis: v=2.4 cv=E8/Npbdl c=1 sm=1 tr=0 ts=687f5e46 cx=c_pps a=IZJwPbhc+fLeJZngyXXI0A==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=Wb1JkmetP80A:10 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=QX4gbG5DAAAA:8 a=FO1u493g7a1ack9Z5SAA:9 a=QEXdDO2ut3YA:10 a=uG9DUKGECoFWVXl0Dc02:22 a=AbAUZ8qAyYyZVLSsDulk:22 X-Proofpoint-ORIG-GUID: xCcJbBMF_lfJ6Aqrwj86gQwrsY4j0tSQ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-07-22_01,2025-07-21_02,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 malwarescore=0 spamscore=0 bulkscore=0 lowpriorityscore=0 priorityscore=1501 adultscore=0 suspectscore=0 clxscore=1015 phishscore=0 mlxlogscore=999 mlxscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505280000 definitions=main-2507220081 On 7/22/2025 1:31 PM, Muhammad Usama Anjum wrote: > Don't deinitialize and reinitialize the HAL helpers. The dma memory is > deallocated and there is high possibility that we'll not be able to get > the same memory allocated from dma when there is high memory pressure. > > Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03926.13-QCAHSPSWPL_V2_SILICONZ_CE-2.52297.6 > > Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices") > Cc: stable@vger.kernel.org > Cc: Baochen Qiang > Reviewed-by: Baochen Qiang > Signed-off-by: Muhammad Usama Anjum > --- > Changes since v1: > - Cc stable and fix tested on tag > - Clear essential fields as they may have stale data > > Changes since v2: > - Add comment and reviewed by tag > --- > drivers/net/wireless/ath/ath11k/core.c | 6 +----- > drivers/net/wireless/ath/ath11k/hal.c | 16 ++++++++++++++++ > drivers/net/wireless/ath/ath11k/hal.h | 1 + > 3 files changed, 18 insertions(+), 5 deletions(-) > > diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c > index 4488e4cdc5e9e..34b27711ed00f 100644 > --- a/drivers/net/wireless/ath/ath11k/core.c > +++ b/drivers/net/wireless/ath/ath11k/core.c > @@ -2213,14 +2213,10 @@ static int ath11k_core_reconfigure_on_crash(struct ath11k_base *ab) > mutex_unlock(&ab->core_lock); > > ath11k_dp_free(ab); > - ath11k_hal_srng_deinit(ab); > + ath11k_hal_srng_clear(ab); > > ab->free_vdev_map = (1LL << (ab->num_radios * TARGET_NUM_VDEVS(ab))) - 1; > > - ret = ath11k_hal_srng_init(ab); > - if (ret) > - return ret; > - > clear_bit(ATH11K_FLAG_CRASH_FLUSH, &ab->dev_flags); > > ret = ath11k_core_qmi_firmware_ready(ab); > diff --git a/drivers/net/wireless/ath/ath11k/hal.c b/drivers/net/wireless/ath/ath11k/hal.c > index b32de563d453a..e8ebf963f195c 100644 > --- a/drivers/net/wireless/ath/ath11k/hal.c > +++ b/drivers/net/wireless/ath/ath11k/hal.c > @@ -1359,6 +1359,22 @@ void ath11k_hal_srng_deinit(struct ath11k_base *ab) > } > EXPORT_SYMBOL(ath11k_hal_srng_deinit); > > +void ath11k_hal_srng_clear(struct ath11k_base *ab) > +{ > + /* No need to memset rdp and wrp memory since each individual > + * segment would get cleared ath11k_hal_srng_src_hw_init() and nit: s/cleared /cleared in/ > + * ath11k_hal_srng_dst_hw_init(). > + */ > + memset(ab->hal.srng_list, 0, > + sizeof(ab->hal.srng_list)); > + memset(ab->hal.shadow_reg_addr, 0, > + sizeof(ab->hal.shadow_reg_addr)); > + ab->hal.avail_blk_resource = 0; > + ab->hal.current_blk_index = 0; > + ab->hal.num_shadow_reg_configured = 0; > +} > +EXPORT_SYMBOL(ath11k_hal_srng_clear); > + > void ath11k_hal_dump_srng_stats(struct ath11k_base *ab) > { > struct hal_srng *srng; > diff --git a/drivers/net/wireless/ath/ath11k/hal.h b/drivers/net/wireless/ath/ath11k/hal.h > index 601542410c752..839095af9267e 100644 > --- a/drivers/net/wireless/ath/ath11k/hal.h > +++ b/drivers/net/wireless/ath/ath11k/hal.h > @@ -965,6 +965,7 @@ int ath11k_hal_srng_setup(struct ath11k_base *ab, enum hal_ring_type type, > struct hal_srng_params *params); > int ath11k_hal_srng_init(struct ath11k_base *ath11k); > void ath11k_hal_srng_deinit(struct ath11k_base *ath11k); > +void ath11k_hal_srng_clear(struct ath11k_base *ab); > void ath11k_hal_dump_srng_stats(struct ath11k_base *ab); > void ath11k_hal_srng_get_shadow_config(struct ath11k_base *ab, > u32 **cfg, u32 *len);