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Fri, 14 Mar 2025 06:14:08 GMT Received: from localhost.localdomain (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; Thu, 13 Mar 2025 23:14:06 -0700 From: Miaoqing Pan To: CC: , , , , Miaoqing Pan Subject: [PATCH v3 ath-next 1/2] wifi: ath11k: add function to get next srng desc Date: Fri, 14 Mar 2025 14:13:52 +0800 Message-ID: <20250314061353.106194-2-quic_miaoqing@quicinc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250314061353.106194-1-quic_miaoqing@quicinc.com> References: <20250314061353.106194-1-quic_miaoqing@quicinc.com> Precedence: bulk X-Mailing-List: linux-wireless@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: 4Pu8OtvrwuKBVLIeazYZ76yCQ6o_FK8a X-Authority-Analysis: v=2.4 cv=DNSP4zNb c=1 sm=1 tr=0 ts=67d3c931 cx=c_pps a=ouPCqIW2jiPt+lZRy3xVPw==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=GEpy-HfZoHoA:10 a=Vs1iUdzkB0EA:10 a=COk6AnOGAAAA:8 a=wFPo1YcO-awHL2IpnCwA:9 a=RVmHIydaz68A:10 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-GUID: 4Pu8OtvrwuKBVLIeazYZ76yCQ6o_FK8a X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1093,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-03-14_02,2025-03-13_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 clxscore=1015 phishscore=0 malwarescore=0 mlxlogscore=994 priorityscore=1501 mlxscore=0 spamscore=0 bulkscore=0 impostorscore=0 suspectscore=0 adultscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2503140047 Adding the ath11k_hal_srng_dst_next() function allows for the separate invocation of ath11k_hal_srng_dst_peek() and ath11k_hal_srng_dst_next() in certain situations, instead of calling the ath11k_hal_srng_dst_get_next_entry() function alone. Tested-on: QCA6698AQ hw2.1 PCI WLAN.HSP.1.1-04546-QCAHSPSWPL_V1_V2_SILICONZ_IOE-1 Signed-off-by: Miaoqing Pan --- drivers/net/wireless/ath/ath11k/hal.c | 17 ++++++++++++++++- drivers/net/wireless/ath/ath11k/hal.h | 3 ++- 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath11k/hal.c b/drivers/net/wireless/ath/ath11k/hal.c index 61f4b6dd5380..211c085921b6 100644 --- a/drivers/net/wireless/ath/ath11k/hal.c +++ b/drivers/net/wireless/ath/ath11k/hal.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: BSD-3-Clause-Clear /* * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved. - * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2021-2025 Qualcomm Innovation Center, Inc. All rights reserved. */ #include #include "hal_tx.h" @@ -656,6 +656,21 @@ static void ath11k_hal_srng_prefetch_desc(struct ath11k_base *ab, } } +void ath11k_hal_srng_dst_next(struct ath11k_base *ab, struct hal_srng *srng) +{ + lockdep_assert_held(&srng->lock); + + srng->u.dst_ring.tp += srng->entry_size; + + /* wrap around to start of ring*/ + if (srng->u.dst_ring.tp == srng->ring_size) + srng->u.dst_ring.tp = 0; + + /* Try to prefetch the next descriptor in the ring */ + if (srng->flags & HAL_SRNG_FLAGS_CACHED) + ath11k_hal_srng_prefetch_desc(ab, srng); +} + u32 *ath11k_hal_srng_dst_get_next_entry(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 601542410c75..317b09ec6c35 100644 --- a/drivers/net/wireless/ath/ath11k/hal.h +++ b/drivers/net/wireless/ath/ath11k/hal.h @@ -1,7 +1,7 @@ /* SPDX-License-Identifier: BSD-3-Clause-Clear */ /* * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved. - * Copyright (c) 2021-2022, 2024 Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2021-2022, 2024-2025 Qualcomm Innovation Center, Inc. All rights reserved. */ #ifndef ATH11K_HAL_H @@ -941,6 +941,7 @@ int ath11k_hal_srng_get_entrysize(struct ath11k_base *ab, u32 ring_type); int ath11k_hal_srng_get_max_entries(struct ath11k_base *ab, u32 ring_type); void ath11k_hal_srng_get_params(struct ath11k_base *ab, struct hal_srng *srng, struct hal_srng_params *params); +void ath11k_hal_srng_dst_next(struct ath11k_base *ab, struct hal_srng *srng); u32 *ath11k_hal_srng_dst_get_next_entry(struct ath11k_base *ab, struct hal_srng *srng); u32 *ath11k_hal_srng_dst_peek(struct ath11k_base *ab, struct hal_srng *srng);