From patchwork Fri Oct 4 19:32:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeffrey Hugo X-Patchwork-Id: 832786 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 744C81DAC81 for ; Fri, 4 Oct 2024 19:33:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728070397; cv=none; b=Znsgo+hy1vqbAsfucR8OEGGXoncCSjsVPFVOzjk97wS5Q+zMqdHKzlx/gvt/9eBysC/J3tB6vtq2P6JipjTCSCB0bqcVspppCcq+CS8XmaHgC0XuoSWyche5F7sxlQe3W6HRxydmbQWc+GlJQzFPYcXRA3ft0td+KQLnFZg6xEA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728070397; c=relaxed/simple; bh=rtHuqKFBqZAwU3do0mEyaGwNqevk5u17lqY2379wlA8=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=cmXSGX02unR+8E8iAWnGPi1V72ZjKoI2wriZZqyk1z24BdAfwXA/uUNDl4tzSORsNRZr5PdU48ssJ7LsNS5Rf0j/2Pd46YwSNxVyulX/VXsNEReRvhUcpOiqbcppHA4DTOuAjDn4//XTsW68q4kK8ySvvgBdSuJGhr/JFqWIE7Y= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=GnUVUwcp; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="GnUVUwcp" Received: from pps.filterd (m0279865.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 494AQHIZ025744; Fri, 4 Oct 2024 19:33:11 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-transfer-encoding:content-type:date:from:message-id :mime-version:subject:to; s=qcppdkim1; bh=StmBWnSRDLVfS6eE/CCTjG XamkLdbGRsuS1izIF7V94=; b=GnUVUwcpovyONPJqSVSraZboVgG2uizYZZ148m p45z80AWLyHzZygmp9Bp0RI0J4xfw0/4UDyblnWByZOGYf/KpKp/MeBdAkcD3Rdj ATqshd7bjnYHevNBRf/APu4T00JIZHEH2bij34qVVqN6FGAnrwGvN4V/bhMvrG+8 dmvqRfKQLFWqwnH7MVjBIGz7noJbEeSzDXvlqySec0qVo7DO3CmotZeTmMAKzb3k J4Ker+behj4KyIUTa88aWGKDLVNIGXN7l3SW81cpnJrH6ZeInIHG9Vw+bu0wJ2ee j+s54qZW9D4qbzZy+W4PbtEhFv5jE8Iu4bQOMmKfgCpc1mlw== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 42205kk3mm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 04 Oct 2024 19:33:10 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA05.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 494JXAx7030679 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 4 Oct 2024 19:33:10 GMT Received: from jhugo-lnx.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 15.2.1544.9; Fri, 4 Oct 2024 12:33:09 -0700 From: Jeffrey Hugo To: CC: , , , , Pranjal Ramajor Asha Kanojiya , Jeffrey Hugo Subject: [PATCH] accel/qaic: Fix the for loop used to walk SG table Date: Fri, 4 Oct 2024 13:32:52 -0600 Message-ID: <20241004193252.3888544-1-quic_jhugo@quicinc.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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-ORIG-GUID: 7arbgIB6DgR4AEQta1Pnj2nMfdZIjFus X-Proofpoint-GUID: 7arbgIB6DgR4AEQta1Pnj2nMfdZIjFus X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 clxscore=1015 adultscore=0 lowpriorityscore=0 mlxscore=0 priorityscore=1501 phishscore=0 bulkscore=0 impostorscore=0 malwarescore=0 suspectscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2410040135 From: Pranjal Ramajor Asha Kanojiya Only for_each_sgtable_dma_sg() should be used to walk through a SG table to grab correct bus address and length pair after calling DMA MAP API on a SG table as DMA MAP APIs updates the SG table and for_each_sgtable_sg() walks through the original SG table. Fixes: ff13be830333 ("accel/qaic: Add datapath") Fixes: 129776ac2e38 ("accel/qaic: Add control path") Signed-off-by: Pranjal Ramajor Asha Kanojiya Reviewed-by: Jeffrey Hugo Signed-off-by: Jeffrey Hugo --- drivers/accel/qaic/qaic_control.c | 2 +- drivers/accel/qaic/qaic_data.c | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/accel/qaic/qaic_control.c b/drivers/accel/qaic/qaic_control.c index 9e8a8cbadf6b..d8bdab69f800 100644 --- a/drivers/accel/qaic/qaic_control.c +++ b/drivers/accel/qaic/qaic_control.c @@ -496,7 +496,7 @@ static int encode_addr_size_pairs(struct dma_xfer *xfer, struct wrapper_list *wr nents = sgt->nents; nents_dma = nents; *size = QAIC_MANAGE_EXT_MSG_LENGTH - msg_hdr_len - sizeof(**out_trans); - for_each_sgtable_sg(sgt, sg, i) { + for_each_sgtable_dma_sg(sgt, sg, i) { *size -= sizeof(*asp); /* Save 1K for possible follow-up transactions. */ if (*size < SZ_1K) { diff --git a/drivers/accel/qaic/qaic_data.c b/drivers/accel/qaic/qaic_data.c index e86e71c1cdd8..c20eb63750f5 100644 --- a/drivers/accel/qaic/qaic_data.c +++ b/drivers/accel/qaic/qaic_data.c @@ -184,7 +184,7 @@ static int clone_range_of_sgt_for_slice(struct qaic_device *qdev, struct sg_tabl nents = 0; size = size ? size : PAGE_SIZE; - for (sg = sgt_in->sgl; sg; sg = sg_next(sg)) { + for_each_sgtable_dma_sg(sgt_in, sg, j) { len = sg_dma_len(sg); if (!len) @@ -221,7 +221,7 @@ static int clone_range_of_sgt_for_slice(struct qaic_device *qdev, struct sg_tabl /* copy relevant sg node and fix page and length */ sgn = sgf; - for_each_sgtable_sg(sgt, sg, j) { + for_each_sgtable_dma_sg(sgt, sg, j) { memcpy(sg, sgn, sizeof(*sg)); if (sgn == sgf) { sg_dma_address(sg) += offf; @@ -301,7 +301,7 @@ static int encode_reqs(struct qaic_device *qdev, struct bo_slice *slice, * fence. */ dev_addr = req->dev_addr; - for_each_sgtable_sg(slice->sgt, sg, i) { + for_each_sgtable_dma_sg(slice->sgt, sg, i) { slice->reqs[i].cmd = cmd; slice->reqs[i].src_addr = cpu_to_le64(slice->dir == DMA_TO_DEVICE ? sg_dma_address(sg) : dev_addr);