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WSI is used to exchange specific control information across radios using a doorbell mechanism. This WSI connection is essential for exchanging control information among these devices. The WSI interface in the QCN9274 includes TX and RX ports, which are used to connect multiple WSI-supported devices together, forming a WSI group. Describe QCN9274 PCI wifi device with WSI interface. Signed-off-by: Raj Kumar Bhagat --- .../net/wireless/qcom,ath12k-wsi.yaml | 205 ++++++++++++++++++ 1 file changed, 205 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/wireless/qcom,ath= 12k-wsi.yaml diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath12k-wsi= .yaml b/Documentation/devicetree/bindings/net/wireless/qcom,ath12k-wsi.yaml new file mode 100644 index 000000000000..1e2822a33895 --- /dev/null +++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath12k-wsi.yaml @@ -0,0 +1,205 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/wireless/qcom,ath12k-wsi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Technologies ath12k wireless devices (PCIe) with WSI inter= face + +maintainers: + - Jeff Johnson + - Kalle Valo + +description: + Qualcomm Technologies IEEE 802.11be PCIe devices with WSI interface. + +properties: + compatible: + enum: + - pci17cb,1109 # QCN9274 + + reg: + maxItems: 1 + + qcom,ath12k-calibration-variant: + $ref: /schemas/types.yaml#/definitions/string + description: + String to uniquely identify variant of the calibration data for desi= gns + with colliding bus and device ids + + qcom,wsi-controller: + type: boolean + description: + The WSI controller device in the WSI group aids (is capable) to + synchronize the Timing Synchronization Function (TSF) clock across + all devices in the WSI group. + + ports: + $ref: /schemas/graph.yaml#/properties/ports + description: | + The ath12k devices (QCN9274) feature WSI support. WSI stands for + WLAN Serial Interface. It is used for the exchange of specific + control information across radios based on the doorbell mechanism. + This WSI connection is essential to exchange control information + among these devices. + + Diagram to represent one WSI connection (one WSI group) among + three devices. + + +-------+ +-------+ +-------+ + | pcie1 | | pcie2 | | pcie3 | + | | | | | | + +----->| wsi |------->| wsi |------->| wsi |-----+ + | | grp 0 | | grp 0 | | grp 0 | | + | +-------+ +-------+ +-------+ | + +------------------------------------------------------+ + + Diagram to represent two WSI connections (two separate WSI groups) + among four devices. + + +-------+ +-------+ +-------+ +-------+ + | pcie0 | | pcie1 | | pcie2 | | pcie3 | + | | | | | | | | + +-->| wsi |--->| wsi |--+ +-->| wsi |--->| wsi |--+ + | | grp 0 | | grp 0 | | | | grp 1 | | grp 1 | | + | +-------+ +-------+ | | +-------+ +-------+ | + +---------------------------+ +---------------------------+ + + These ports are used to connect multiple WSI supported devices to + form a WSI group. + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: + This is the TX port of WSI interface. It is attached to the RX + port of the next device in the WSI connection. + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: + This is the RX port of WSI interface. It is attached to the TX + port of the previous device in the WSI connection. + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + pcie { + #address-cells =3D <3>; + #size-cells =3D <2>; + + pcie@0 { + device_type =3D "pci"; + reg =3D <0x0 0x0 0x0 0x0 0x0>; + #address-cells =3D <3>; + #size-cells =3D <2>; + ranges; + + wifi@0 { + compatible =3D "pci17cb,1109"; + reg =3D <0x0 0x0 0x0 0x0 0x0>; + + qcom,ath12k-calibration-variant =3D "RDP433_1"; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + + wifi1_wsi_tx: endpoint { + remote-endpoint =3D <&wifi2_wsi_rx>; + }; + }; + + port@1 { + reg =3D <1>; + + wifi1_wsi_rx: endpoint { + remote-endpoint =3D <&wifi3_wsi_tx>; + }; + }; + }; + }; + }; + + pcie@1 { + device_type =3D "pci"; + reg =3D <0x0 0x0 0x1 0x0 0x0>; + #address-cells =3D <3>; + #size-cells =3D <2>; + ranges; + + wifi@0 { + compatible =3D "pci17cb,1109"; + reg =3D <0x0 0x0 0x0 0x0 0x0>; + + qcom,ath12k-calibration-variant =3D "RDP433_2"; + qcom,wsi-controller; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + + wifi2_wsi_tx: endpoint { + remote-endpoint =3D <&wifi3_wsi_rx>; + }; + }; + + port@1 { + reg =3D <1>; + + wifi2_wsi_rx: endpoint { + remote-endpoint =3D <&wifi1_wsi_tx>; + }; + }; + }; + }; + }; + + pcie@2 { + device_type =3D "pci"; + reg =3D <0x0 0x0 0x2 0x0 0x0>; + #address-cells =3D <3>; + #size-cells =3D <2>; + ranges; + + wifi@0 { + compatible =3D "pci17cb,1109"; + reg =3D <0x0 0x0 0x0 0x0 0x0>; + + qcom,ath12k-calibration-variant =3D "RDP433_3"; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + + wifi3_wsi_tx: endpoint { + remote-endpoint =3D <&wifi1_wsi_rx>; + }; + }; + + port@1 { + reg =3D <1>; + + wifi3_wsi_rx: endpoint { + remote-endpoint =3D <&wifi2_wsi_tx>; + }; + }; + }; + }; + }; + }; --=20 2.34.1 From nobody Sun Nov 24 12:04:03 2024 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 72D551E8857; 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charset="utf-8" From: Harshitha Prem Currently, a single device is part of the device group abstraction. However, for multi-link operations, multiple devices need to be combined. This multi-device grouping is done via WSI (WLAN Serial Interface), which is described in the device tree. Information about different WSI groups and the number of devices involved in each group can be parsed from the device tree. Add changes to parse the device tree and determine WSI information, such as the different WSI groups and the number of devices per WSI group. Assign WSI index zero to the WSI controller device (to synchronize the clock among the devices within the WSI group), and increment the WSI index of each device in the order of the WSI connection. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1 Signed-off-by: Harshitha Prem Co-developed-by: Aditya Kumar Singh Signed-off-by: Aditya Kumar Singh Co-developed-by: Raj Kumar Bhagat Signed-off-by: Raj Kumar Bhagat --- drivers/net/wireless/ath/ath12k/core.c | 178 +++++++++++++++++++++++-- drivers/net/wireless/ath/ath12k/core.h | 8 ++ 2 files changed, 173 insertions(+), 13 deletions(-) diff --git a/drivers/net/wireless/ath/ath12k/core.c b/drivers/net/wireless/= ath/ath12k/core.c index 3f0f44cbdb4c..4170d7fcd438 100644 --- a/drivers/net/wireless/ath/ath12k/core.c +++ b/drivers/net/wireless/ath/ath12k/core.c @@ -9,6 +9,7 @@ #include #include #include +#include #include "core.h" #include "dp_tx.h" #include "dp_rx.h" @@ -1389,20 +1390,24 @@ bool ath12k_core_hw_group_create_ready(struct ath12= k_hw_group *ag) } =20 static struct ath12k_hw_group * -ath12k_core_hw_group_alloc(u8 id, u8 max_devices) +ath12k_core_hw_group_alloc(struct ath12k_base *ab) { struct ath12k_hw_group *ag; + int count =3D 0; =20 lockdep_assert_held(&ath12k_ag_list_lock); =20 + list_for_each_entry(ag, &ath12k_hw_group_list, list) + count++; + ag =3D kzalloc(sizeof(*ag), GFP_KERNEL); if (!ag) return NULL; =20 - ag->id =3D id; - ag->num_devices =3D max_devices; + ag->id =3D count; list_add(&ag->list, &ath12k_hw_group_list); mutex_init(&ag->mutex_lock); + ag->mlo_capable =3D false; =20 return ag; } @@ -1417,34 +1422,173 @@ static void ath12k_core_hw_group_free(struct ath12= k_hw_group *ag) mutex_unlock(&ath12k_ag_list_lock); } =20 +static struct ath12k_hw_group * +ath12k_core_hw_group_find_by_DT(struct ath12k_base *ab) +{ + struct ath12k_hw_group *ag; + int i; + + if (!ab->dev->of_node) + return NULL; + + list_for_each_entry(ag, &ath12k_hw_group_list, list) + for (i =3D 0; i < ag->num_devices; i++) + if (ag->wsi_node[i] =3D=3D ab->dev->of_node) + return ag; + + return NULL; +} + +static int ath12k_core_get_wsi_info(struct ath12k_hw_group *ag, + struct ath12k_base *ab) +{ + struct device_node *wsi_dev =3D ab->dev->of_node, *next_wsi_dev; + struct device_node *tx_endpoint, *next_rx_endpoint; + int device_count =3D 0; + + next_wsi_dev =3D wsi_dev; + + if (!next_wsi_dev) + return -ENODEV; + + do { + ag->wsi_node[device_count] =3D next_wsi_dev; + + tx_endpoint =3D of_graph_get_endpoint_by_regs(next_wsi_dev, 0, -1); + if (!tx_endpoint) { + of_node_put(next_wsi_dev); + return -ENODEV; + } + + next_rx_endpoint =3D of_graph_get_remote_endpoint(tx_endpoint); + if (!next_rx_endpoint) { + of_node_put(next_wsi_dev); + of_node_put(tx_endpoint); + return -ENODEV; + } + + of_node_put(tx_endpoint); + of_node_put(next_wsi_dev); + next_wsi_dev =3D of_graph_get_port_parent(next_rx_endpoint); + if (!next_wsi_dev) { + of_node_put(next_rx_endpoint); + return -ENODEV; + } + of_node_put(next_rx_endpoint); + + device_count++; + if (device_count > ATH12K_MAX_SOCS) { + ath12k_warn(ab, "device count in DT %d is more than limit %d\n", + device_count, ATH12K_MAX_SOCS); + of_node_put(next_wsi_dev); + return -EINVAL; + } + } while (wsi_dev !=3D next_wsi_dev); + + of_node_put(next_wsi_dev); + ag->num_devices =3D device_count; + + return 0; +} + +static int ath12k_core_get_wsi_index(struct ath12k_hw_group *ag, + struct ath12k_base *ab) +{ + int i, wsi_controller_index =3D -1, node_index =3D -1; + + for (i =3D 0; i < ag->num_devices; i++) { + if (of_property_read_bool(ag->wsi_node[i], "qcom,wsi-controller")) + wsi_controller_index =3D i; + if (ag->wsi_node[i] =3D=3D ab->dev->of_node) + node_index =3D i; + } + + if (wsi_controller_index =3D=3D -1) { + ath12k_dbg(ab, ATH12K_DBG_BOOT, "WSI controller is not defined in DT"); + return -EINVAL; + } + + if (node_index =3D=3D -1) { + ath12k_dbg(ab, ATH12K_DBG_BOOT, "unable to get WSI node index"); + return -EINVAL; + } + + ab->wsi_info.index =3D (ag->num_devices + node_index - wsi_controller_ind= ex) % + ag->num_devices; + + return 0; +} + static struct ath12k_hw_group *ath12k_core_assign_hw_group(struct ath12k_b= ase *ab) { struct ath12k_hw_group *ag; - u32 group_id =3D ATH12K_INVALID_GROUP_ID; + struct ath12k_wsi_info *wsi =3D &ab->wsi_info; =20 lockdep_assert_held(&ath12k_ag_list_lock); =20 /* The grouping of multiple devices will be done based on device tree fil= e. - * TODO: device tree file parsing to know about the devices involved in g= roup. - * - * The platforms that do not have any valid group information would have = each - * device to be part of its own invalid group. + * The platforms that do not have any valid group information would have + * each device to be part of its own invalid group. * - * Currently, we are not parsing any device tree information and hence, g= rouping - * of multiple devices is not involved. Thus, single device is added to d= evice - * group. + * We use group id ATH12K_INVALID_GROUP_ID for single device group + * which didn't have dt entry or wrong dt entry, there could be many + * groups with same group id, i.e ATH12K_INVALID_GROUP_ID. So + * default group id of ATH12K_INVALID_GROUP_ID combined with + * num devices in ath12k_hw_group determines if the group is + * multi device or single device group */ - ag =3D ath12k_core_hw_group_alloc(group_id, 1); + + ag =3D ath12k_core_hw_group_find_by_DT(ab); + if (!ag) { + ag =3D ath12k_core_hw_group_alloc(ab); + if (!ag) { + ath12k_warn(ab, "unable to create new hw group\n"); + return NULL; + } + + if (ath12k_core_get_wsi_info(ag, ab) || + ath12k_core_get_wsi_index(ag, ab)) { + ath12k_dbg(ab, ATH12K_DBG_BOOT, + "unable to get WSI Info from DT, grouping single device"); + ag->id =3D ATH12K_INVALID_GROUP_ID; + ag->num_devices =3D 1; + memset(ag->wsi_node, 0, sizeof(ag->wsi_node)); + wsi->index =3D 0; + } + goto exit; + } else if (test_bit(ATH12K_GROUP_FLAG_UNREGISTER, &ag->flags)) { + ath12k_dbg(ab, ATH12K_DBG_BOOT, "group id %d in unregister state\n", + ag->id); + goto invalid_group; + } else { + if (ath12k_core_get_wsi_index(ag, ab)) + goto invalid_group; + goto exit; + } + +invalid_group: + ag =3D ath12k_core_hw_group_alloc(ab); if (!ag) { ath12k_warn(ab, "unable to create new hw group\n"); return NULL; } + ag->id =3D ATH12K_INVALID_GROUP_ID; + ag->num_devices =3D 1; + wsi->index =3D 0; ath12k_dbg(ab, ATH12K_DBG_BOOT, "Single device is added to hardware group= \n"); =20 +exit: + if (ag->num_probed >=3D ag->num_devices) { + ath12k_warn(ab, "unable to add new device to group, max limit reached\n"= ); + goto invalid_group; + } ab->device_id =3D ag->num_probed++; ag->ab[ab->device_id] =3D ab; ab->ag =3D ag; - ag->mlo_capable =3D false; + + ath12k_dbg(ab, ATH12K_DBG_BOOT, + "WSI info: group-id: %d, num-devices: %d, index: %d", + ag->id, ag->num_devices, wsi->index); =20 return ag; } @@ -1511,6 +1655,14 @@ static void ath12k_core_hw_group_cleanup(struct ath1= 2k_hw_group *ag) return; =20 mutex_lock(&ag->mutex_lock); + + if (test_bit(ATH12K_GROUP_FLAG_UNREGISTER, &ag->flags)) { + mutex_unlock(&ag->mutex_lock); + return; + } + + set_bit(ATH12K_GROUP_FLAG_UNREGISTER, &ag->flags); + ath12k_core_hw_group_stop(ag); =20 for (i =3D 0; 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charset="utf-8" From: Karthikeyan Periyasamy Currently, QMI MLO host capability is sent with the details of local links and hw_link id only for particular device but in case of multi device group abstraction, it has to include the details of hw_link_id, num_local_links of every partner device that is involved in the group during QMI MLO capability exchange. Add changes to send partner device details in QMI MLO capability exchange. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1 Signed-off-by: Karthikeyan Periyasamy Signed-off-by: Harshitha Prem Signed-off-by: Raj Kumar Bhagat --- drivers/net/wireless/ath/ath12k/qmi.c | 86 ++++++++++++++++++++++----- 1 file changed, 70 insertions(+), 16 deletions(-) diff --git a/drivers/net/wireless/ath/ath12k/qmi.c b/drivers/net/wireless/a= th/ath12k/qmi.c index 5ebfe13b5313..689171b7b19f 100644 --- a/drivers/net/wireless/ath/ath12k/qmi.c +++ b/drivers/net/wireless/ath/ath12k/qmi.c @@ -2016,17 +2016,19 @@ static const struct qmi_elem_info qmi_wlanfw_wlan_i= ni_resp_msg_v01_ei[] =3D { }, }; =20 -static void ath12k_host_cap_parse_mlo(struct ath12k_base *ab, - struct qmi_wlanfw_host_cap_req_msg_v01 *req) +static int ath12k_host_cap_parse_mlo(struct ath12k_base *ab, + struct qmi_wlanfw_host_cap_req_msg_v01 *req) { struct wlfw_host_mlo_chip_info_s_v01 *info; + struct ath12k_hw_group *ag =3D ab->ag; + struct ath12k_base *partner_ab; u8 hw_link_id =3D 0; - int i; + int i, j, ret; =20 - if (!ab->ag->mlo_capable) { + if (!ag->mlo_capable) { ath12k_dbg(ab, ATH12K_DBG_QMI, "MLO is disabled hence skip QMI MLO cap"); - return; + return 0; } =20 if (!ab->qmi.num_radios || ab->qmi.num_radios =3D=3D U8_MAX) { @@ -2035,7 +2037,13 @@ static void ath12k_host_cap_parse_mlo(struct ath12k_= base *ab, ath12k_dbg(ab, ATH12K_DBG_QMI, "skip QMI MLO cap due to invalid num_radio %d\n", ab->qmi.num_radios); - return; + return 0; + } + + if (ab->device_id =3D=3D ATH12K_INVALID_DEVICE_ID) { + ath12k_err(ab, "failed to send MLO cap due to invalid device id\n"); + ret =3D -EINVAL; + return ret; } =20 req->mlo_capable_valid =3D 1; @@ -2043,27 +2051,71 @@ static void ath12k_host_cap_parse_mlo(struct ath12k= _base *ab, req->mlo_chip_id_valid =3D 1; req->mlo_chip_id =3D ab->device_id; req->mlo_group_id_valid =3D 1; - req->mlo_group_id =3D 0; + req->mlo_group_id =3D ag->id; req->max_mlo_peer_valid =3D 1; /* Max peer number generally won't change for the same device * but needs to be synced with host driver. */ req->max_mlo_peer =3D ab->hw_params->max_mlo_peer; req->mlo_num_chips_valid =3D 1; - req->mlo_num_chips =3D 1; + req->mlo_num_chips =3D ag->num_devices; =20 - info =3D &req->mlo_chip_info[0]; - info->chip_id =3D ab->device_id; - info->num_local_links =3D ab->qmi.num_radios; + mutex_lock(&ag->mutex_lock); + for (i =3D 0; i < ag->num_devices; i++) { + info =3D &req->mlo_chip_info[i]; + partner_ab =3D ag->ab[i]; + + if (partner_ab->device_id =3D=3D ATH12K_INVALID_DEVICE_ID) { + ath12k_err(ab, "failed to send MLO cap due to invalid partner device id= \n"); + ret =3D -EINVAL; + goto device_cleanup; + } + + info->chip_id =3D partner_ab->device_id; + info->num_local_links =3D partner_ab->qmi.num_radios; =20 - for (i =3D 0; i < info->num_local_links; i++) { - info->hw_link_id[i] =3D hw_link_id; - info->valid_mlo_link_id[i] =3D 1; + ath12k_dbg(ab, ATH12K_DBG_QMI, "MLO device id %d num_link %d\n", + info->chip_id, info->num_local_links); =20 - hw_link_id++; + for (j =3D 0; j < info->num_local_links; j++) { + info->hw_link_id[j] =3D hw_link_id; + info->valid_mlo_link_id[j] =3D 1; + + hw_link_id++; + } } =20 + if (hw_link_id <=3D 0) + ag->mlo_capable =3D false; + req->mlo_chip_info_valid =3D 1; + + mutex_unlock(&ag->mutex_lock); + return 0; + +device_cleanup: + for (i =3D i - 1; i >=3D 0; i--) { + info =3D &req->mlo_chip_info[i]; + + memset(info, 0, sizeof(*info)); + } + + req->mlo_num_chips =3D 0; + req->mlo_num_chips_valid =3D 0; + + req->max_mlo_peer =3D 0; + req->max_mlo_peer_valid =3D 0; + req->mlo_group_id =3D 0; + req->mlo_group_id_valid =3D 0; + req->mlo_chip_id =3D 0; + req->mlo_chip_id_valid =3D 0; + req->mlo_capable =3D 0; + req->mlo_capable_valid =3D 0; + + ag->mlo_capable =3D false; + mutex_unlock(&ag->mutex_lock); + + return ret; } =20 static int ath12k_qmi_host_cap_send(struct ath12k_base *ab) @@ -2111,7 +2163,9 @@ static int ath12k_qmi_host_cap_send(struct ath12k_bas= e *ab) req.nm_modem |=3D PLATFORM_CAP_PCIE_GLOBAL_RESET; } =20 - ath12k_host_cap_parse_mlo(ab, &req); + ret =3D ath12k_host_cap_parse_mlo(ab, &req); + if (ret < 0) + goto out; =20 ret =3D qmi_txn_init(&ab->qmi.handle, &txn, qmi_wlanfw_host_cap_resp_msg_v01_ei, &resp); 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charset="utf-8" From: Aditya Kumar Singh Currently, in the QMI host capability, the device index, the number of local links, and the corresponding hardware link IDs are sent. The hardware link ID assignment is based on the local variable `hw_link_id`, which starts from 0 and ranges up to `num_local_links` in the device. Starting from 0 is not ideal because it can result in the same link ID being assigned to different devices in certain scenarios (e.g., split MAC). Additionally, for multi link operations the firmware expects the hardware link IDs in the same order as the Wireless Serial Interface (WSI) connection. Hence, for MLO to function seamlessly, the hardware link IDs across devices need to be unique and should follow the order of the WSI connection. To address this, a previous change read the WSI index from the Device Tree (DT) and stored it. Use this WSI index to determine the starting hardware link IDs for each device, ensuring uniqueness and correct order across all devices. While at it, add debug prints to clearly show the MLO capability advertisement sent during QMI host capability exchange. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1 Signed-off-by: Aditya Kumar Singh Co-developed-by: Raj Kumar Bhagat Signed-off-by: Raj Kumar Bhagat --- drivers/net/wireless/ath/ath12k/core.h | 2 ++ drivers/net/wireless/ath/ath12k/qmi.c | 40 ++++++++++++++++++++++++-- 2 files changed, 39 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/= ath/ath12k/core.h index 619407398a99..a532cfdc7558 100644 --- a/drivers/net/wireless/ath/ath12k/core.h +++ b/drivers/net/wireless/ath/ath12k/core.h @@ -845,11 +845,13 @@ struct ath12k_hw_group { u8 num_hw; bool mlo_capable; struct device_node *wsi_node[ATH12K_MAX_SOCS]; + bool hw_link_id_init_done; }; =20 /* Holds WSI info specific to each device, excluding WSI group info */ struct ath12k_wsi_info { u32 index; + u32 hw_link_id_base; }; =20 /* Master structure to hold the hw data which may be used in core module */ diff --git a/drivers/net/wireless/ath/ath12k/qmi.c b/drivers/net/wireless/a= th/ath12k/qmi.c index 689171b7b19f..ab34f4788867 100644 --- a/drivers/net/wireless/ath/ath12k/qmi.c +++ b/drivers/net/wireless/ath/ath12k/qmi.c @@ -2016,6 +2016,25 @@ static const struct qmi_elem_info qmi_wlanfw_wlan_in= i_resp_msg_v01_ei[] =3D { }, }; =20 +static void ath12k_host_cap_hw_link_id_init(struct ath12k_hw_group *ag) +{ + struct ath12k_base *ab, *partner_ab; + int i, j, hw_id_base; + + for (i =3D 0; i < ag->num_devices; i++) { + hw_id_base =3D 0; + ab =3D ag->ab[i]; + for (j =3D 0; j < ag->num_devices; j++) { + partner_ab =3D ag->ab[j]; + if (partner_ab->wsi_info.index >=3D ab->wsi_info.index) + continue; + hw_id_base +=3D partner_ab->qmi.num_radios; + } + ab->wsi_info.hw_link_id_base =3D hw_id_base; + } + ag->hw_link_id_init_done =3D true; +} + static int ath12k_host_cap_parse_mlo(struct ath12k_base *ab, struct qmi_wlanfw_host_cap_req_msg_v01 *req) { @@ -2060,7 +2079,17 @@ static int ath12k_host_cap_parse_mlo(struct ath12k_b= ase *ab, req->mlo_num_chips_valid =3D 1; req->mlo_num_chips =3D ag->num_devices; =20 + ath12k_dbg(ab, ATH12K_DBG_QMI, "MLO Capability advertisement:"); + ath12k_dbg(ab, ATH12K_DBG_QMI, " * device_id: %d", req->mlo_chip_id); + ath12k_dbg(ab, ATH12K_DBG_QMI, " * group_id: %d", req->mlo_group_id); + ath12k_dbg(ab, ATH12K_DBG_QMI, " * num_devices: %d", req->mlo_num_chips); + ath12k_dbg(ab, ATH12K_DBG_QMI, " * Devices info:"); + mutex_lock(&ag->mutex_lock); + + if (!ag->hw_link_id_init_done) + ath12k_host_cap_hw_link_id_init(ag); + for (i =3D 0; i < ag->num_devices; i++) { info =3D &req->mlo_chip_info[i]; partner_ab =3D ag->ab[i]; @@ -2074,12 +2103,17 @@ static int ath12k_host_cap_parse_mlo(struct ath12k_= base *ab, info->chip_id =3D partner_ab->device_id; info->num_local_links =3D partner_ab->qmi.num_radios; =20 - ath12k_dbg(ab, ATH12K_DBG_QMI, "MLO device id %d num_link %d\n", - info->chip_id, info->num_local_links); + ath12k_dbg(ab, ATH12K_DBG_QMI, " * device_id: %d", + info->chip_id); + ath12k_dbg(ab, ATH12K_DBG_QMI, " * num_links: %d", + info->num_local_links); =20 for (j =3D 0; j < info->num_local_links; j++) { - info->hw_link_id[j] =3D hw_link_id; + info->hw_link_id[j] =3D partner_ab->wsi_info.hw_link_id_base + j; info->valid_mlo_link_id[j] =3D 1; + ath12k_dbg(ab, ATH12K_DBG_QMI, + " * hw_link_id: %d\n", + info->hw_link_id[j]); =20 hw_link_id++; } --=20 2.34.1 From nobody Sun Nov 24 12:04:03 2024 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 161721E7661; 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charset="utf-8" The RDP433 is a Qualcomm Reference Design Platform based on the IPQ9574. It has three QCN9274 WiFi devices connected to PCIe1, PCIe2, and PCIe3. These devices are also connected among themselves via WSI connection. This WSI connection is essential to exchange control information among these devices The WSI connection in RDP433 is represented below: +-------+ +-------+ +-------+ | pcie1 | | pcie2 | | pcie3 | | | | | | | +----->| wsi |------->| wsi |------->| wsi |-----+ | | grp 0 | | grp 0 | | grp 0 | | | +-------+ +-------+ +-------+ | +------------------------------------------------------+ Based on the above, the wifi node properties for QCN9274 at pcie2 are (considering QCN9274 at pcie2 is WSI controller): - qcom,wsi-controller - ports: tx-port (port@0): endpoint at pcie3 RX port. rx-port (port@1): endpoint at pcie1 TX port. Hence, add WiFi nodes with WSI properties for all three QCN9274 devices connected to RDP433. Signed-off-by: Raj Kumar Bhagat --- arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts | 105 +++++++++++++++++++- 1 file changed, 104 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts b/arch/arm64/boot/= dts/qcom/ipq9574-rdp433.dts index 165ebbb59511..a490a0d51fbb 100644 --- a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts +++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts @@ -3,7 +3,7 @@ * IPQ9574 RDP433 board device tree source * * Copyright (c) 2020-2021 The Linux Foundation. All rights reserved. - * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2023-2024 Qualcomm Innovation Center, Inc. All rights res= erved. */ =20 /dts-v1/; @@ -27,6 +27,40 @@ &pcie1 { perst-gpios =3D <&tlmm 26 GPIO_ACTIVE_LOW>; wake-gpios =3D <&tlmm 27 GPIO_ACTIVE_LOW>; status =3D "okay"; + + pcie@0 { + device_type =3D "pci"; + reg =3D <0x0 0x0 0x0 0x0 0x0>; + #address-cells =3D <3>; + #size-cells =3D <2>; + ranges; + + wifi@0 { + compatible =3D "pci17cb,1109"; + reg =3D <0x0 0x0 0x0 0x0 0x0>; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + + wifi1_wsi_tx: endpoint { + remote-endpoint =3D <&wifi2_wsi_rx>; + }; + }; + + port@1 { + reg =3D <1>; + + wifi1_wsi_rx: endpoint { + remote-endpoint =3D <&wifi3_wsi_tx>; + }; + }; + }; + }; + }; }; =20 &pcie2_phy { @@ -40,6 +74,42 @@ &pcie2 { perst-gpios =3D <&tlmm 29 GPIO_ACTIVE_LOW>; wake-gpios =3D <&tlmm 30 GPIO_ACTIVE_LOW>; status =3D "okay"; + + pcie@0 { + device_type =3D "pci"; + reg =3D <0x0 0x0 0x0 0x0 0x0>; + #address-cells =3D <3>; + #size-cells =3D <2>; + ranges; + + wifi@0 { + compatible =3D "pci17cb,1109"; + reg =3D <0x0 0x0 0x0 0x0 0x0>; + + qcom,wsi-controller; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + + wifi2_wsi_tx: endpoint { + remote-endpoint =3D <&wifi3_wsi_rx>; + }; + }; + + port@1 { + reg =3D <1>; + + wifi2_wsi_rx: endpoint { + remote-endpoint =3D <&wifi1_wsi_tx>; + }; + }; + }; + }; + }; }; =20 &pcie3_phy { @@ -53,6 +123,39 @@ &pcie3 { perst-gpios =3D <&tlmm 32 GPIO_ACTIVE_LOW>; wake-gpios =3D <&tlmm 33 GPIO_ACTIVE_LOW>; status =3D "okay"; + + pcie@0 { + device_type =3D "pci"; + reg =3D <0x0 0x0 0x0 0x0 0x0>; + #address-cells =3D <3>; + #size-cells =3D <2>; + ranges; + + wifi@0 { + compatible =3D "pci17cb,1109"; + reg =3D <0x0 0x0 0x0 0x0 0x0>; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + + wifi3_wsi_tx: endpoint { + remote-endpoint =3D <&wifi1_wsi_rx>; + }; + }; + + port@1 { + reg =3D <1>; + wifi3_wsi_rx: endpoint { + remote-endpoint =3D <&wifi2_wsi_tx>; + }; + }; + }; + }; + }; }; =20 &sdhc_1 { --=20 2.34.1