From: Mustafa Ismail <mustafa.ismail@xxxxxxxxx>
Register auxiliary drivers which can attach to auxiliary RDMA
devices from Intel PCI netdev drivers i40e and ice. Implement the private
channel ops, and register net notifiers.
[flexible array transformation]
Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx>
Signed-off-by: Mustafa Ismail <mustafa.ismail@xxxxxxxxx>
Signed-off-by: Shiraz Saleem <shiraz.saleem@xxxxxxxxx>
---
drivers/infiniband/hw/irdma/i40iw_if.c | 216 +++++++++++++
drivers/infiniband/hw/irdma/main.c | 358 +++++++++++++++++++++
drivers/infiniband/hw/irdma/main.h | 555 +++++++++++++++++++++++++++++++++
3 files changed, 1129 insertions(+)
create mode 100644 drivers/infiniband/hw/irdma/i40iw_if.c
create mode 100644 drivers/infiniband/hw/irdma/main.c
create mode 100644 drivers/infiniband/hw/irdma/main.h
diff --git a/drivers/infiniband/hw/irdma/i40iw_if.c b/drivers/infiniband/hw/irdma/i40iw_if.c
new file mode 100644
index 0000000..bddf881
--- /dev/null
+++ b/drivers/infiniband/hw/irdma/i40iw_if.c
@@ -0,0 +1,216 @@
+// SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
+/* Copyright (c) 2015 - 2021 Intel Corporation */
+#include "main.h"
+#include "i40iw_hw.h"
+#include <linux/net/intel/i40e_client.h>
+
+static struct i40e_client i40iw_client;
+
+/**
+ * i40iw_l2param_change - handle mss change
+ * @cdev_info: parent lan device information structure with data/ops
+ * @client: client for parameter change
+ * @params: new parameters from L2
+ */
+static void i40iw_l2param_change(struct i40e_info *cdev_info,
+ struct i40e_client *client,
+ struct i40e_params *params)
+{
+ struct irdma_l2params l2params = {};
+ struct irdma_device *iwdev;
+ struct ib_device *ibdev;
+
+ ibdev = ib_device_get_by_netdev(cdev_info->netdev, RDMA_DRIVER_IRDMA);
+ if (!ibdev)
+ return;
+
+ iwdev = to_iwdev(ibdev);
+
+ if (iwdev->vsi.mtu != params->mtu) {
+ l2params.mtu_changed = true;
+ l2params.mtu = params->mtu;
+ }
+ irdma_change_l2params(&iwdev->vsi, &l2params);
+ ib_device_put(ibdev);
+}
+
+/**
+ * i40iw_close - client interface operation close for iwarp/uda device
+ * @cdev_info: parent lan device information structure with data/ops
+ * @client: client to close
+ * @reset: flag to indicate close on reset
+ *
+ * Called by the lan driver during the processing of client unregister
+ * Destroy and clean up the driver resources
+ */
+static void i40iw_close(struct i40e_info *cdev_info, struct i40e_client *client,
+ bool reset)
+{
+ struct irdma_device *iwdev;
+ struct ib_device *ibdev;
+
+ ibdev = ib_device_get_by_netdev(cdev_info->netdev, RDMA_DRIVER_IRDMA);
+ if (WARN_ON(!ibdev))
+ return;
+
+ iwdev = to_iwdev(ibdev);
+ if (reset)
+ iwdev->reset = true;
+
+ iwdev->iw_status = 0;
+ irdma_port_ibevent(iwdev);
+ ib_unregister_device_and_put(ibdev);
+ pr_debug("INIT: Gen1 PF[%d] close complete\n", PCI_FUNC(cdev_info->pcidev->devfn));
+}
+
+static void i40iw_request_reset(struct irdma_pci_f *rf)
+{
+ struct i40e_info *cdev_info = rf->cdev;
+
+ cdev_info->ops->request_reset(cdev_info, &i40iw_client, 1);
+}
+
+static void i40iw_fill_device_info(struct irdma_device *iwdev, struct i40e_info *cdev_info)
+{
+ struct irdma_pci_f *rf = iwdev->rf;
+
+ rf->rdma_ver = IRDMA_GEN_1;
+ rf->gen_ops.request_reset = i40iw_request_reset;
+ rf->pcidev = cdev_info->pcidev;
+ rf->hw.hw_addr = cdev_info->hw_addr;
+ rf->cdev = cdev_info;
+ rf->msix_count = cdev_info->msix_count;
+ rf->msix_entries = cdev_info->msix_entries;
+ rf->limits_sel = 5;
+ rf->protocol_used = IRDMA_IWARP_PROTOCOL_ONLY;
+ rf->iwdev = iwdev;
+
+ iwdev->init_state = INITIAL_STATE;
+ iwdev->rcv_wnd = IRDMA_CM_DEFAULT_RCV_WND_SCALED;
+ iwdev->rcv_wscale = IRDMA_CM_DEFAULT_RCV_WND_SCALE;
+ iwdev->netdev = cdev_info->netdev;
+ iwdev->vsi_num = 0;
+}
+
+/**
+ * i40iw_open - client interface operation open for iwarp/uda device
+ * @cdev_info: parent lan device information structure with data/ops
+ * @client: iwarp client information, provided during registration
+ *
+ * Called by the lan driver during the processing of client register
+ * Create device resources, set up queues, pble and hmc objects and
+ * register the device with the ib verbs interface
+ * Return 0 if successful, otherwise return error
+ */
+static int i40iw_open(struct i40e_info *cdev_info, struct i40e_client *client)
+{
+ struct irdma_l2params l2params = {};
+ struct irdma_device *iwdev;
+ struct irdma_pci_f *rf;
+ int err = -EIO;
+ int i;
+ u16 qset;
+ u16 last_qset = IRDMA_NO_QSET;
+
+ iwdev = ib_alloc_device(irdma_device, ibdev);
+ if (!iwdev)
+ return -ENOMEM;
+
+ iwdev->rf = kzalloc(sizeof(*rf), GFP_KERNEL);
+ if (!iwdev->rf) {
+ ib_dealloc_device(&iwdev->ibdev);
+ return -ENOMEM;
+ }
+
+ i40iw_fill_device_info(iwdev, cdev_info);
+ rf = iwdev->rf;
+
+ if (irdma_ctrl_init_hw(rf)) {
+ err = -EIO;
+ goto err_ctrl_init;
+ }
+
+ l2params.mtu = (cdev_info->params.mtu) ? cdev_info->params.mtu : IRDMA_DEFAULT_MTU;
+ for (i = 0; i < I40E_CLIENT_MAX_USER_PRIORITY; i++) {
+ qset = cdev_info->params.qos.prio_qos[i].qs_handle;
+ l2params.up2tc[i] = cdev_info->params.qos.prio_qos[i].tc;
+ l2params.qs_handle_list[i] = qset;
+ if (last_qset == IRDMA_NO_QSET)
+ last_qset = qset;
+ else if ((qset != last_qset) && (qset != IRDMA_NO_QSET))
+ iwdev->dcb = true;
+ }
+
+ if (irdma_rt_init_hw(iwdev, &l2params)) {
+ err = -EIO;
+ goto err_rt_init;
+ }
+
+ err = irdma_ib_register_device(iwdev);
+ if (err)
+ goto err_ibreg;
+
+ ibdev_dbg(&iwdev->ibdev, "INIT: Gen1 PF[%d] open success\n",
+ PCI_FUNC(rf->pcidev->devfn));
+
+ return 0;
+
+err_ibreg:
+ irdma_rt_deinit_hw(iwdev);
+err_rt_init:
+ irdma_ctrl_deinit_hw(rf);
+err_ctrl_init:
+ kfree(iwdev->rf);
+ ib_dealloc_device(&iwdev->ibdev);
+
+ return err;
+}
+
+/* client interface functions */
+static const struct i40e_client_ops i40e_ops = {
+ .open = i40iw_open,
+ .close = i40iw_close,
+ .l2_param_change = i40iw_l2param_change
+};
+
+static struct i40e_client i40iw_client = {
+ .ops = &i40e_ops,
+ .type = I40E_CLIENT_IWARP,
+};
+
+static int i40iw_probe(struct auxiliary_device *aux_dev, const struct auxiliary_device_id *id)
+{
+ struct i40e_auxiliary_device *i40e_adev = container_of(aux_dev,
+ struct i40e_auxiliary_device,
+ aux_dev);
+ struct i40e_info *cdev_info = i40e_adev->ldev;
+
+ strncpy(i40iw_client.name, "irdma", I40E_CLIENT_STR_LENGTH);
+ i40e_client_device_register(cdev_info, &i40iw_client);
+
+ return 0;
+}
+
+static void i40iw_remove(struct auxiliary_device *aux_dev)
+{
+ struct i40e_auxiliary_device *i40e_adev = container_of(aux_dev,
+ struct i40e_auxiliary_device,
+ aux_dev);
+ struct i40e_info *cdev_info = i40e_adev->ldev;
+
+ return i40e_client_device_unregister(cdev_info);
+}
+
+static const struct auxiliary_device_id i40iw_auxiliary_id_table[] = {
+ {.name = "i40e.iwarp", },
+ {},
+};
+
+MODULE_DEVICE_TABLE(auxiliary, i40iw_auxiliary_id_table);
+
+struct auxiliary_driver i40iw_auxiliary_drv = {
+ .name = "gen_1",
+ .id_table = i40iw_auxiliary_id_table,
+ .probe = i40iw_probe,
+ .remove = i40iw_remove,
+};
diff --git a/drivers/infiniband/hw/irdma/main.c b/drivers/infiniband/hw/irdma/main.c
new file mode 100644
index 0000000..ea59432
--- /dev/null
+++ b/drivers/infiniband/hw/irdma/main.c
@@ -0,0 +1,358 @@
+// SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
+/* Copyright (c) 2015 - 2021 Intel Corporation */
+#include "main.h"
+#include "../../../net/ethernet/intel/ice/ice.h"
+
+MODULE_ALIAS("i40iw");
+MODULE_AUTHOR("Intel Corporation, <e1000-rdma@xxxxxxxxxxxxxxxxxxxxx>");
+MODULE_DESCRIPTION("Intel(R) Ethernet Protocol Driver for RDMA");
+MODULE_LICENSE("Dual BSD/GPL");
+
+static struct notifier_block irdma_inetaddr_notifier = {
+ .notifier_call = irdma_inetaddr_event
+};
+
+static struct notifier_block irdma_inetaddr6_notifier = {
+ .notifier_call = irdma_inet6addr_event
+};
+
+static struct notifier_block irdma_net_notifier = {
+ .notifier_call = irdma_net_event
+};
+
+static struct notifier_block irdma_netdevice_notifier = {
+ .notifier_call = irdma_netdevice_event
+};
+
+static void irdma_register_notifiers(void)
+{
+ register_inetaddr_notifier(&irdma_inetaddr_notifier);
+ register_inet6addr_notifier(&irdma_inetaddr6_notifier);
+ register_netevent_notifier(&irdma_net_notifier);
+ register_netdevice_notifier(&irdma_netdevice_notifier);
+}
+
+static void irdma_unregister_notifiers(void)
+{
+ unregister_netevent_notifier(&irdma_net_notifier);
+ unregister_inetaddr_notifier(&irdma_inetaddr_notifier);
+ unregister_inet6addr_notifier(&irdma_inetaddr6_notifier);
+ unregister_netdevice_notifier(&irdma_netdevice_notifier);
+}
+
+static void irdma_prep_tc_change(struct irdma_device *iwdev)
+{
+ iwdev->vsi.tc_change_pending = true;
+ irdma_sc_suspend_resume_qps(&iwdev->vsi, IRDMA_OP_SUSPEND);
+
+ /* Wait for all qp's to suspend */
+ wait_event_timeout(iwdev->suspend_wq,
+ !atomic_read(&iwdev->vsi.qp_suspend_reqs),
+ IRDMA_EVENT_TIMEOUT);
+ irdma_ws_reset(&iwdev->vsi);
+}
+
+static void irdma_log_invalid_mtu(u16 mtu, struct irdma_sc_dev *dev)
+{
+ if (mtu < IRDMA_MIN_MTU_IPV4)
+ ibdev_warn(to_ibdev(dev), "MTU setting [%d] too low for RDMA traffic. Minimum MTU is 576 for IPv4\n", mtu);
+ else if (mtu < IRDMA_MIN_MTU_IPV6)
+ ibdev_warn(to_ibdev(dev), "MTU setting [%d] too low for RDMA traffic. Minimum MTU is 1280 for IPv6\\n", mtu);
+}
+
+static void irdma_fill_qos_info(struct irdma_l2params *l2params,
+ struct iidc_qos_params *qos_info)
+{
+ int i;
+
+ l2params->num_tc = qos_info->num_tc;
+ l2params->vsi_prio_type = qos_info->vport_priority_type;
+ l2params->vsi_rel_bw = qos_info->vport_relative_bw;
+ for (i = 0; i < l2params->num_tc; i++) {
+ l2params->tc_info[i].egress_virt_up =
+ qos_info->tc_info[i].egress_virt_up;
+ l2params->tc_info[i].ingress_virt_up =
+ qos_info->tc_info[i].ingress_virt_up;
+ l2params->tc_info[i].prio_type = qos_info->tc_info[i].prio_type;
+ l2params->tc_info[i].rel_bw = qos_info->tc_info[i].rel_bw;
+ l2params->tc_info[i].tc_ctx = qos_info->tc_info[i].tc_ctx;
+ }
+ for (i = 0; i < IIDC_MAX_USER_PRIORITY; i++)
+ l2params->up2tc[i] = qos_info->up2tc[i];
+}
+
+static void irdma_iidc_event_handler(struct ice_pf *pf, struct iidc_event *event)
+{
+ struct irdma_device *iwdev = dev_get_drvdata(&pf->adev->dev);
+ struct irdma_l2params l2params = {};
+
+ if (*event->type & BIT(IIDC_EVENT_AFTER_MTU_CHANGE)) {
+ ibdev_dbg(&iwdev->ibdev, "CLNT: new MTU = %d\n", iwdev->netdev->mtu);
+ if (iwdev->vsi.mtu != iwdev->netdev->mtu) {
+ l2params.mtu = iwdev->netdev->mtu;
+ l2params.mtu_changed = true;
+ irdma_log_invalid_mtu(l2params.mtu, &iwdev->rf->sc_dev);
+ irdma_change_l2params(&iwdev->vsi, &l2params);
+ }
+ } else if (*event->type & BIT(IIDC_EVENT_BEFORE_TC_CHANGE)) {
+ if (iwdev->vsi.tc_change_pending)
+ return;
+
+ irdma_prep_tc_change(iwdev);
+ } else if (*event->type & BIT(IIDC_EVENT_AFTER_TC_CHANGE)) {
+ struct iidc_qos_params qos_info = {};
+
+ if (!iwdev->vsi.tc_change_pending)
+ return;
+
+ l2params.tc_changed = true;
+ ibdev_dbg(&iwdev->ibdev, "CLNT: TC Change\n");
+ ice_get_qos_params(pf, &qos_info);
+ iwdev->dcb = qos_info.num_tc > 1;
+ irdma_fill_qos_info(&l2params, &qos_info);
+ irdma_change_l2params(&iwdev->vsi, &l2params);
+ } else if (*event->type & BIT(IIDC_EVENT_CRIT_ERR)) {
+ ibdev_warn(&iwdev->ibdev, "ICE OICR event notification: oicr = 0x%08x\n",
+ event->reg);
+ if (event->reg & IRDMAPFINT_OICR_PE_CRITERR_M) {
+ u32 pe_criterr;
+
+ pe_criterr = readl(iwdev->rf->sc_dev.hw_regs[IRDMA_GLPE_CRITERR]);
+#define IRDMA_Q1_RESOURCE_ERR 0x0001024d
+ if (pe_criterr != IRDMA_Q1_RESOURCE_ERR) {
+ ibdev_err(&iwdev->ibdev, "critical PE Error, GLPE_CRITERR=0x%08x\n",
+ pe_criterr);
+ iwdev->rf->reset = true;
+ } else {
+ ibdev_warn(&iwdev->ibdev, "Q1 Resource Check\n");
+ }
+ }
+ if (event->reg & IRDMAPFINT_OICR_HMC_ERR_M) {
+ ibdev_err(&iwdev->ibdev, "HMC Error\n");
+ iwdev->rf->reset = true;
+ }
+ if (event->reg & IRDMAPFINT_OICR_PE_PUSH_M) {
+ ibdev_err(&iwdev->ibdev, "PE Push Error\n");
+ iwdev->rf->reset = true;
+ }
+ if (iwdev->rf->reset)
+ iwdev->rf->gen_ops.request_reset(iwdev->rf);
+ }
+}
+
+/**
+ * irdma_request_reset - Request a reset
+ * @rf: RDMA PCI function
+ */
+static void irdma_request_reset(struct irdma_pci_f *rf)
+{
+ struct ice_pf *pf = rf->cdev;
+
+ ibdev_warn(&rf->iwdev->ibdev, "Requesting a reset\n");
+ ice_rdma_request_reset(pf, IIDC_PFR);
+}
+
+/**
+ * irdma_lan_register_qset - Register qset with LAN driver
+ * @vsi: vsi structure
+ * @tc_node: Traffic class node
+ */
+static enum irdma_status_code irdma_lan_register_qset(struct irdma_sc_vsi *vsi,
+ struct irdma_ws_node *tc_node)
+{
+ struct irdma_device *iwdev = vsi->back_vsi;
+ struct ice_pf *pf = iwdev->rf->cdev;
+ struct iidc_rdma_qset_params qset = {};
+ int ret;
+
+ qset.qs_handle = tc_node->qs_handle;
+ qset.tc = tc_node->traffic_class;
+ qset.vport_id = vsi->vsi_idx;
+ ret = ice_add_rdma_qset(pf, &qset);
+ if (ret) {
+ ibdev_dbg(&iwdev->ibdev, "WS: LAN alloc_res for rdma qset failed.\n");
+ return IRDMA_ERR_REG_QSET;
+ }
+
+ tc_node->l2_sched_node_id = qset.teid;
+ vsi->qos[tc_node->user_pri].l2_sched_node_id = qset.teid;
+
+ return 0;
+}
+
+/**
+ * irdma_lan_unregister_qset - Unregister qset with LAN driver
+ * @vsi: vsi structure
+ * @tc_node: Traffic class node
+ */
+static void irdma_lan_unregister_qset(struct irdma_sc_vsi *vsi,
+ struct irdma_ws_node *tc_node)
+{
+ struct irdma_device *iwdev = vsi->back_vsi;
+ struct ice_pf *pf = iwdev->rf->cdev;
+ struct iidc_rdma_qset_params qset = {};
+
+ qset.qs_handle = tc_node->qs_handle;
+ qset.tc = tc_node->traffic_class;
+ qset.vport_id = vsi->vsi_idx;
+ qset.teid = tc_node->l2_sched_node_id;
+
+ if (ice_del_rdma_qset(pf, &qset))
+ ibdev_dbg(&iwdev->ibdev, "WS: LAN free_res for rdma qset failed.\n");
+}
+
+static void irdma_remove(struct auxiliary_device *aux_dev)
+{
+ struct iidc_auxiliary_dev *iidc_adev = container_of(aux_dev,
+ struct iidc_auxiliary_dev,
+ adev);
+ struct ice_pf *pf = iidc_adev->pf;
+ struct irdma_device *iwdev = dev_get_drvdata(&aux_dev->dev);
+
+ irdma_ib_unregister_device(iwdev);
+ ice_rdma_update_vsi_filter(pf, iwdev->vsi_num, false);
+
+ pr_debug("INIT: Gen2 PF[%d] device remove success\n", PCI_FUNC(pf->pdev->devfn));
+}
+
+static void irdma_fill_device_info(struct irdma_device *iwdev, struct ice_pf *pf)
+{
+ struct irdma_pci_f *rf = iwdev->rf;
+ struct ice_vsi *vsi = ice_get_main_vsi(pf);
+
+ rf->cdev = pf;
+ rf->gen_ops.register_qset = irdma_lan_register_qset;
+ rf->gen_ops.unregister_qset = irdma_lan_unregister_qset;
+ rf->hw.hw_addr = pf->hw.hw_addr;
+ rf->pcidev = pf->pdev;
+ rf->msix_count = pf->num_rdma_msix;
+ rf->msix_entries = &pf->msix_entries[pf->rdma_base_vector];
+ rf->default_vsi.vsi_idx = vsi->vsi_num;
+ rf->protocol_used = IRDMA_ROCE_PROTOCOL_ONLY;
+ rf->rdma_ver = IRDMA_GEN_2;
+ rf->rsrc_profile = IRDMA_HMC_PROFILE_DEFAULT;
+ rf->rst_to = IRDMA_RST_TIMEOUT_HZ;
+ rf->gen_ops.request_reset = irdma_request_reset;
+ rf->limits_sel = 7;
+ rf->iwdev = iwdev;
+
+ iwdev->netdev = vsi->netdev;
+ iwdev->vsi_num = vsi->vsi_num;
+ iwdev->init_state = INITIAL_STATE;
+ iwdev->roce_cwnd = IRDMA_ROCE_CWND_DEFAULT;
+ iwdev->roce_ackcreds = IRDMA_ROCE_ACKCREDS_DEFAULT;
+ iwdev->rcv_wnd = IRDMA_CM_DEFAULT_RCV_WND_SCALED;
+ iwdev->rcv_wscale = IRDMA_CM_DEFAULT_RCV_WND_SCALE;
+ if (rf->protocol_used == IRDMA_ROCE_PROTOCOL_ONLY)
+ iwdev->roce_mode = true;
+}
+
+static int irdma_probe(struct auxiliary_device *aux_dev, const struct auxiliary_device_id *id)
+{
+ struct iidc_auxiliary_dev *iidc_adev = container_of(aux_dev,
+ struct iidc_auxiliary_dev,
+ adev);
+ struct ice_pf *pf = iidc_adev->pf;
+ struct iidc_qos_params qos_info = {};
+ struct irdma_device *iwdev;
+ struct irdma_pci_f *rf;
+ struct irdma_l2params l2params = {};
+ int err;
+
+ iwdev = ib_alloc_device(irdma_device, ibdev);
+ if (!iwdev)
+ return -ENOMEM;
+ iwdev->rf = kzalloc(sizeof(*rf), GFP_KERNEL);
+ if (!iwdev->rf) {
+ ib_dealloc_device(&iwdev->ibdev);
+ return -ENOMEM;
+ }
+
+ irdma_fill_device_info(iwdev, pf);
+ rf = iwdev->rf;
+
+ if (irdma_ctrl_init_hw(rf)) {
+ err = -EIO;
+ goto err_ctrl_init;
+ }
+
+ l2params.mtu = iwdev->netdev->mtu;
+ ice_get_qos_params(pf, &qos_info);
+ irdma_fill_qos_info(&l2params, &qos_info);
+ if (irdma_rt_init_hw(iwdev, &l2params)) {
+ err = -EIO;
+ goto err_rt_init;
+ }
+
+ err = irdma_ib_register_device(iwdev);
+ if (err)
+ goto err_ibreg;
+
+ ice_rdma_update_vsi_filter(pf, iwdev->vsi_num, true);
+
+ ibdev_dbg(&iwdev->ibdev, "INIT: Gen2 PF[%d] device probe success\n", PCI_FUNC(rf->pcidev->devfn));
+ dev_set_drvdata(&aux_dev->dev, iwdev);
+
+ return 0;
+
+err_ibreg:
+ irdma_rt_deinit_hw(iwdev);
+err_rt_init:
+ irdma_ctrl_deinit_hw(rf);
+err_ctrl_init:
+ kfree(iwdev->rf);
+ ib_dealloc_device(&iwdev->ibdev);
+
+ return err;
+}
+
+static const struct auxiliary_device_id irdma_auxiliary_id_table[] = {
+ {.name = "ice.iwarp", },
+ {.name = "ice.roce", },
+ {},
+};
+
+MODULE_DEVICE_TABLE(auxiliary, irdma_auxiliary_id_table);
+
+static struct iidc_auxiliary_drv irdma_auxiliary_drv = {
+ .adrv = {
+ .id_table = irdma_auxiliary_id_table,
+ .probe = irdma_probe,
+ .remove = irdma_remove,
+ },
+ .event_handler = irdma_iidc_event_handler,
+};
+
+static int __init irdma_init_module(void)
+{
+ int ret;
+
+ ret = auxiliary_driver_register(&i40iw_auxiliary_drv);
+ if (ret) {
+ pr_err("Failed i40iw(gen_1) auxiliary_driver_register() ret=%d\n",
+ ret);
+ return ret;
+ }
+
+ ret = auxiliary_driver_register(&irdma_auxiliary_drv.adrv);
+ if (ret) {
+ auxiliary_driver_unregister(&i40iw_auxiliary_drv);
+ pr_err("Failed irdma auxiliary_driver_register() ret=%d\n",
+ ret);
+ return ret;
+ }
+
+ irdma_register_notifiers();
+
+ return 0;
+}
+
+static void __exit irdma_exit_module(void)
+{
+ irdma_unregister_notifiers();
+ auxiliary_driver_unregister(&irdma_auxiliary_drv.adrv);
+ auxiliary_driver_unregister(&i40iw_auxiliary_drv);
+}
+
+module_init(irdma_init_module);
+module_exit(irdma_exit_module);
diff --git a/drivers/infiniband/hw/irdma/main.h b/drivers/infiniband/hw/irdma/main.h
new file mode 100644
index 0000000..743d9e1
--- /dev/null
+++ b/drivers/infiniband/hw/irdma/main.h
@@ -0,0 +1,555 @@
+/* SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB */
+/* Copyright (c) 2015 - 2021 Intel Corporation */
+#ifndef IRDMA_MAIN_H
+#define IRDMA_MAIN_H
+
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <linux/if_vlan.h>
+#include <net/addrconf.h>
+#include <net/netevent.h>
+#include <net/tcp.h>
+#include <net/ip6_route.h>
+#include <net/flow.h>
+#include <net/secure_seq.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/inetdevice.h>
+#include <linux/spinlock.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/workqueue.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/crc32c.h>
+#include <linux/kthread.h>
+#ifndef CONFIG_64BIT
+#include <linux/io-64-nonatomic-lo-hi.h>
+#endif
+#include <linux/auxiliary_bus.h>
+#include <linux/net/intel/iidc.h>
+#include <crypto/hash.h>
+#include <rdma/ib_smi.h>
+#include <rdma/ib_verbs.h>
+#include <rdma/ib_pack.h>
+#include <rdma/rdma_cm.h>
+#include <rdma/iw_cm.h>
+#include <rdma/ib_user_verbs.h>
+#include <rdma/ib_umem.h>
+#include <rdma/ib_cache.h>
+#include <rdma/uverbs_ioctl.h>
+#include "status.h"
+#include "osdep.h"
+#include "defs.h"
+#include "hmc.h"
+#include "type.h"
+#include "ws.h"
+#include "protos.h"
+#include "pble.h"
+#include "cm.h"
+#include <rdma/irdma-abi.h>
+#include "verbs.h"
+#include "user.h"
+#include "puda.h"
+
+extern struct auxiliary_driver i40iw_auxiliary_drv;
+
+#define IRDMA_FW_VER_DEFAULT 2
+#define IRDMA_HW_VER 2
+
+#define IRDMA_ARP_ADD 1
+#define IRDMA_ARP_DELETE 2
+#define IRDMA_ARP_RESOLVE 3
+
+#define IRDMA_MACIP_ADD 1
+#define IRDMA_MACIP_DELETE 2
+
+#define IW_CCQ_SIZE (IRDMA_CQP_SW_SQSIZE_2048 + 1)
+#define IW_CEQ_SIZE 2048
+#define IW_AEQ_SIZE 2048
+
+#define RX_BUF_SIZE (1536 + 8)
+#define IW_REG0_SIZE (4 * 1024)
+#define IW_TX_TIMEOUT (6 * HZ)
+#define IW_FIRST_QPN 1
+
+#define IW_SW_CONTEXT_ALIGN 1024
+
+#define MAX_DPC_ITERATIONS 128
+
+#define IRDMA_EVENT_TIMEOUT 50000
+#define IRDMA_VCHNL_EVENT_TIMEOUT 100000
+#define IRDMA_RST_TIMEOUT_HZ 4
+
+#define IRDMA_NO_QSET 0xffff
+
+#define IW_CFG_FPM_QP_COUNT 32768
+#define IRDMA_MAX_PAGES_PER_FMR 512
+#define IRDMA_MIN_PAGES_PER_FMR 1
+#define IRDMA_CQP_COMPL_RQ_WQE_FLUSHED 2
+#define IRDMA_CQP_COMPL_SQ_WQE_FLUSHED 3
+
+#define IRDMA_Q_TYPE_PE_AEQ 0x80
+#define IRDMA_Q_INVALID_IDX 0xffff
+#define IRDMA_REM_ENDPOINT_TRK_QPID 3
+
+#define IRDMA_DRV_OPT_ENA_MPA_VER_0 0x00000001
+#define IRDMA_DRV_OPT_DISABLE_MPA_CRC 0x00000002
+#define IRDMA_DRV_OPT_DISABLE_FIRST_WRITE 0x00000004
+#define IRDMA_DRV_OPT_DISABLE_INTF 0x00000008
+#define IRDMA_DRV_OPT_ENA_MSI 0x00000010
+#define IRDMA_DRV_OPT_DUAL_LOGICAL_PORT 0x00000020
+#define IRDMA_DRV_OPT_NO_INLINE_DATA 0x00000080
+#define IRDMA_DRV_OPT_DISABLE_INT_MOD 0x00000100
+#define IRDMA_DRV_OPT_DISABLE_VIRT_WQ 0x00000200
+#define IRDMA_DRV_OPT_ENA_PAU 0x00000400
+#define IRDMA_DRV_OPT_MCAST_LOGPORT_MAP 0x00000800
+
+#define IW_HMC_OBJ_TYPE_NUM ARRAY_SIZE(iw_hmc_obj_types)
+#define IRDMA_ROCE_CWND_DEFAULT 0x400
+#define IRDMA_ROCE_ACKCREDS_DEFAULT 0x1E
+
+#define IRDMA_FLUSH_SQ BIT(0)
+#define IRDMA_FLUSH_RQ BIT(1)
+#define IRDMA_REFLUSH BIT(2)
+#define IRDMA_FLUSH_WAIT BIT(3)
+
+enum init_completion_state {
+ INVALID_STATE = 0,
+ INITIAL_STATE,
+ CQP_CREATED,
+ HMC_OBJS_CREATED,
+ HW_RSRC_INITIALIZED,
+ CCQ_CREATED,
+ CEQ0_CREATED, /* Last state of probe */
+ ILQ_CREATED,
+ IEQ_CREATED,
+ CEQS_CREATED,
+ PBLE_CHUNK_MEM,
+ AEQ_CREATED,
+ IP_ADDR_REGISTERED, /* Last state of open */
+};
+
+struct irdma_rsrc_limits {
+ u32 qplimit;
+ u32 mrlimit;
+ u32 cqlimit;
+};
+
+struct irdma_cqp_err_info {
+ u16 maj;
+ u16 min;
+ const char *desc;
+};
+
+struct irdma_cqp_compl_info {
+ u32 op_ret_val;
+ u16 maj_err_code;
+ u16 min_err_code;
+ bool error;
+ u8 op_code;
+};
+
+struct irdma_cqp_request {
+ struct cqp_cmds_info info;
+ wait_queue_head_t waitq;
+ struct list_head list;
+ refcount_t refcnt;
+ void (*callback_fcn)(struct irdma_cqp_request *cqp_request);
+ void *param;
+ struct irdma_cqp_compl_info compl_info;
+ bool waiting:1;
+ bool request_done:1;
+ bool dynamic:1;
+};
+
+struct irdma_cqp {
+ struct irdma_sc_cqp sc_cqp;
+ spinlock_t req_lock; /* protect CQP request list */
+ spinlock_t compl_lock; /* protect CQP completion processing */
+ wait_queue_head_t waitq;
+ wait_queue_head_t remove_wq;
+ struct irdma_dma_mem sq;
+ struct irdma_dma_mem host_ctx;
+ u64 *scratch_array;
+ struct irdma_cqp_request *cqp_requests;
+ struct list_head cqp_avail_reqs;
+ struct list_head cqp_pending_reqs;
+};
+
+struct irdma_ccq {
+ struct irdma_sc_cq sc_cq;
+ struct irdma_dma_mem mem_cq;
+ struct irdma_dma_mem shadow_area;
+};
+
+struct irdma_ceq {
+ struct irdma_sc_ceq sc_ceq;
+ struct irdma_dma_mem mem;
+ u32 irq;
+ u32 msix_idx;
+ struct irdma_pci_f *rf;
+ struct tasklet_struct dpc_tasklet;
+ spinlock_t ce_lock; /* sync cq destroy with cq completion event notification */
+};
+
+struct irdma_aeq {
+ struct irdma_sc_aeq sc_aeq;
+ struct irdma_dma_mem mem;
+ struct irdma_pble_alloc palloc;
+ bool virtual_map;
+};
+
+struct irdma_arp_entry {
+ u32 ip_addr[4];
+ u8 mac_addr[ETH_ALEN];
+};
+
+struct irdma_msix_vector {
+ u32 idx;
+ u32 irq;
+ u32 cpu_affinity;
+ u32 ceq_id;
+ cpumask_t mask;
+};
+
+struct irdma_mc_table_info {
+ u32 mgn;
+ u32 dest_ip[4];
+ bool lan_fwd:1;
+ bool ipv4_valid:1;
+};
+
+struct mc_table_list {
+ struct list_head list;
+ struct irdma_mc_table_info mc_info;
+ struct irdma_mcast_grp_info mc_grp_ctx;
+};
+
+struct irdma_qv_info {
+ u32 v_idx; /* msix_vector */
+ u16 ceq_idx;
+ u16 aeq_idx;
+ u8 itr_idx;
+};
+
+struct irdma_qvlist_info {
+ u32 num_vectors;
+ struct irdma_qv_info qv_info[1];
+};
+
+struct irdma_gen_ops {
+ void (*request_reset)(struct irdma_pci_f *rf);
+ enum irdma_status_code (*register_qset)(struct irdma_sc_vsi *vsi,
+ struct irdma_ws_node *tc_node);
+ void (*unregister_qset)(struct irdma_sc_vsi *vsi,
+ struct irdma_ws_node *tc_node);
+};
+
+struct irdma_pci_f {
+ bool reset:1;
+ bool rsrc_created:1;
+ bool msix_shared:1;
+ u8 rsrc_profile;
+ u8 *hmc_info_mem;
+ u8 *mem_rsrc;
+ u8 rdma_ver;
+ u8 rst_to;
+ enum irdma_protocol_used protocol_used;
+ u32 sd_type;
+ u32 msix_count;
+ u32 max_mr;
+ u32 max_qp;
+ u32 max_cq;
+ u32 max_ah;
+ u32 next_ah;
+ u32 max_mcg;
+ u32 next_mcg;
+ u32 max_pd;
+ u32 next_qp;
+ u32 next_cq;
+ u32 next_pd;
+ u32 max_mr_size;
+ u32 max_cqe;
+ u32 mr_stagmask;
+ u32 used_pds;
+ u32 used_cqs;
+ u32 used_mrs;
+ u32 used_qps;
+ u32 arp_table_size;
+ u32 next_arp_index;
+ u32 ceqs_count;
+ u32 next_ws_node_id;
+ u32 max_ws_node_id;
+ u32 limits_sel;
+ unsigned long *allocated_ws_nodes;
+ unsigned long *allocated_qps;
+ unsigned long *allocated_cqs;
+ unsigned long *allocated_mrs;
+ unsigned long *allocated_pds;
+ unsigned long *allocated_mcgs;
+ unsigned long *allocated_ahs;
+ unsigned long *allocated_arps;
+ enum init_completion_state init_state;
+ struct irdma_sc_dev sc_dev;
+ struct pci_dev *pcidev;
+ void *cdev;
+ struct irdma_hw hw;
+ struct irdma_cqp cqp;
+ struct irdma_ccq ccq;
+ struct irdma_aeq aeq;
+ struct irdma_ceq *ceqlist;
+ struct irdma_hmc_pble_rsrc *pble_rsrc;
+ struct irdma_arp_entry *arp_table;
+ spinlock_t arp_lock; /*protect ARP table access*/
+ spinlock_t rsrc_lock; /* protect HW resource array access */
+ spinlock_t qptable_lock; /*protect QP table access*/
+ struct irdma_qp **qp_table;
+ spinlock_t qh_list_lock; /* protect mc_qht_list */
+ struct mc_table_list mc_qht_list;
+ struct irdma_msix_vector *iw_msixtbl;
+ struct irdma_qvlist_info *iw_qvlist;
+ struct tasklet_struct dpc_tasklet;
+ struct msix_entry *msix_entries;
+ struct irdma_dma_mem obj_mem;
+ struct irdma_dma_mem obj_next;
+ atomic_t vchnl_msgs;
+ wait_queue_head_t vchnl_waitq;
+ struct workqueue_struct *cqp_cmpl_wq;
+ struct work_struct cqp_cmpl_work;
+ struct irdma_sc_vsi default_vsi;
+ void *back_fcn;
+ struct irdma_gen_ops gen_ops;
+ struct irdma_device *iwdev;
+};
+
+struct irdma_device {
+ struct ib_device ibdev;
+ struct irdma_pci_f *rf;
+ struct net_device *netdev;
+ struct workqueue_struct *cleanup_wq;
+ struct irdma_sc_vsi vsi;
+ struct irdma_cm_core cm_core;
+ u32 roce_cwnd;
+ u32 roce_ackcreds;
+ u32 vendor_id;
+ u32 vendor_part_id;
+ u32 device_cap_flags;
+ u32 push_mode;
+ u32 rcv_wnd;
+ u16 mac_ip_table_idx;
+ u16 vsi_num;
+ u8 rcv_wscale;
+ u8 iw_status;
+ bool roce_mode:1;
+ bool roce_dcqcn_en:1;
+ bool dcb:1;
+ bool reset:1;
+ bool iw_ooo:1;
+ enum init_completion_state init_state;
+
+ wait_queue_head_t suspend_wq;
+};
+
+static inline struct irdma_device *to_iwdev(struct ib_device *ibdev)
+{
+ return container_of(ibdev, struct irdma_device, ibdev);
+}
+
+static inline struct irdma_ucontext *to_ucontext(struct ib_ucontext *ibucontext)
+{
+ return container_of(ibucontext, struct irdma_ucontext, ibucontext);
+}
+
+static inline struct irdma_user_mmap_entry *
+to_irdma_mmap_entry(struct rdma_user_mmap_entry *rdma_entry)
+{
+ return container_of(rdma_entry, struct irdma_user_mmap_entry,
+ rdma_entry);
+}
+
+static inline struct irdma_pd *to_iwpd(struct ib_pd *ibpd)
+{
+ return container_of(ibpd, struct irdma_pd, ibpd);
+}
+
+static inline struct irdma_ah *to_iwah(struct ib_ah *ibah)
+{
+ return container_of(ibah, struct irdma_ah, ibah);
+}
+
+static inline struct irdma_mr *to_iwmr(struct ib_mr *ibmr)
+{
+ return container_of(ibmr, struct irdma_mr, ibmr);
+}
+
+static inline struct irdma_mr *to_iwmw(struct ib_mw *ibmw)
+{
+ return container_of(ibmw, struct irdma_mr, ibmw);
+}
+
+static inline struct irdma_cq *to_iwcq(struct ib_cq *ibcq)
+{
+ return container_of(ibcq, struct irdma_cq, ibcq);
+}
+
+static inline struct irdma_qp *to_iwqp(struct ib_qp *ibqp)
+{
+ return container_of(ibqp, struct irdma_qp, ibqp);
+}
+
+static inline struct irdma_pci_f *dev_to_rf(struct irdma_sc_dev *dev)
+{
+ return container_of(dev, struct irdma_pci_f, sc_dev);
+}
+
+/**
+ * irdma_alloc_resource - allocate a resource
+ * @iwdev: device pointer
+ * @resource_array: resource bit array:
+ * @max_resources: maximum resource number
+ * @req_resources_num: Allocated resource number
+ * @next: next free id
+ **/
+static inline int irdma_alloc_rsrc(struct irdma_pci_f *rf,
+ unsigned long *rsrc_array, u32 max_rsrc,
+ u32 *req_rsrc_num, u32 *next)
+{
+ u32 rsrc_num;
+ unsigned long flags;
+
+ spin_lock_irqsave(&rf->rsrc_lock, flags);
+ rsrc_num = find_next_zero_bit(rsrc_array, max_rsrc, *next);
+ if (rsrc_num >= max_rsrc) {
+ rsrc_num = find_first_zero_bit(rsrc_array, max_rsrc);
+ if (rsrc_num >= max_rsrc) {
+ spin_unlock_irqrestore(&rf->rsrc_lock, flags);
+ ibdev_dbg(&rf->iwdev->ibdev,
+ "ERR: resource [%d] allocation failed\n",
+ rsrc_num);
+ return -EOVERFLOW;
+ }
+ }
+ __set_bit(rsrc_num, rsrc_array);
+ *next = rsrc_num + 1;
+ if (*next == max_rsrc)
+ *next = 0;
+ *req_rsrc_num = rsrc_num;
+ spin_unlock_irqrestore(&rf->rsrc_lock, flags);
+
+ return 0;
+}
+
+/**
+ * irdma_free_resource - free a resource
+ * @iwdev: device pointer
+ * @resource_array: resource array for the resource_num
+ * @resource_num: resource number to free
+ **/
+static inline void irdma_free_rsrc(struct irdma_pci_f *rf,
+ unsigned long *rsrc_array, u32 rsrc_num)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&rf->rsrc_lock, flags);
+ __clear_bit(rsrc_num, rsrc_array);
+ spin_unlock_irqrestore(&rf->rsrc_lock, flags);
+}
+
+enum irdma_status_code irdma_ctrl_init_hw(struct irdma_pci_f *rf);
+void irdma_ctrl_deinit_hw(struct irdma_pci_f *rf);
+enum irdma_status_code irdma_rt_init_hw(struct irdma_device *iwdev,
+ struct irdma_l2params *l2params);
+void irdma_rt_deinit_hw(struct irdma_device *iwdev);
+void irdma_qp_add_ref(struct ib_qp *ibqp);
+void irdma_qp_rem_ref(struct ib_qp *ibqp);
+void irdma_free_lsmm_rsrc(struct irdma_qp *iwqp);
+struct ib_qp *irdma_get_qp(struct ib_device *ibdev, int qpn);
+void irdma_flush_wqes(struct irdma_qp *iwqp, u32 flush_mask);
+void irdma_manage_arp_cache(struct irdma_pci_f *rf, unsigned char *mac_addr,
+ u32 *ip_addr, bool ipv4, u32 action);
+struct irdma_apbvt_entry *irdma_add_apbvt(struct irdma_device *iwdev, u16 port);
+void irdma_del_apbvt(struct irdma_device *iwdev,
+ struct irdma_apbvt_entry *entry);
+struct irdma_cqp_request *irdma_alloc_and_get_cqp_request(struct irdma_cqp *cqp,
+ bool wait);
+void irdma_free_cqp_request(struct irdma_cqp *cqp,
+ struct irdma_cqp_request *cqp_request);
+void irdma_put_cqp_request(struct irdma_cqp *cqp,
+ struct irdma_cqp_request *cqp_request);
+int irdma_alloc_local_mac_entry(struct irdma_pci_f *rf, u16 *mac_tbl_idx);
+int irdma_add_local_mac_entry(struct irdma_pci_f *rf, u8 *mac_addr, u16 idx);
+void irdma_del_local_mac_entry(struct irdma_pci_f *rf, u16 idx);
+
+u32 irdma_initialize_hw_rsrc(struct irdma_pci_f *rf);
+void irdma_port_ibevent(struct irdma_device *iwdev);
+void irdma_cm_disconn(struct irdma_qp *qp);
+
+bool irdma_cqp_crit_err(struct irdma_sc_dev *dev, u8 cqp_cmd,
+ u16 maj_err_code, u16 min_err_code);
+enum irdma_status_code
+irdma_handle_cqp_op(struct irdma_pci_f *rf,
+ struct irdma_cqp_request *cqp_request);
+
+int irdma_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
+ struct ib_udata *udata);
+int irdma_modify_qp_roce(struct ib_qp *ibqp, struct ib_qp_attr *attr,
+ int attr_mask, struct ib_udata *udata);
+void irdma_cq_wq_destroy(struct irdma_pci_f *rf, struct irdma_sc_cq *cq);
+
+void irdma_cleanup_pending_cqp_op(struct irdma_pci_f *rf);
+enum irdma_status_code irdma_hw_modify_qp(struct irdma_device *iwdev,
+ struct irdma_qp *iwqp,
+ struct irdma_modify_qp_info *info,
+ bool wait);
+enum irdma_status_code irdma_qp_suspend_resume(struct irdma_sc_qp *qp,
+ bool suspend);
+enum irdma_status_code
+irdma_manage_qhash(struct irdma_device *iwdev, struct irdma_cm_info *cminfo,
+ enum irdma_quad_entry_type etype,
+ enum irdma_quad_hash_manage_type mtype, void *cmnode,
+ bool wait);
+void irdma_receive_ilq(struct irdma_sc_vsi *vsi, struct irdma_puda_buf *rbuf);
+void irdma_free_sqbuf(struct irdma_sc_vsi *vsi, void *bufp);
+void irdma_free_qp_rsrc(struct irdma_qp *iwqp);
+enum irdma_status_code irdma_setup_cm_core(struct irdma_device *iwdev, u8 ver);
+void irdma_cleanup_cm_core(struct irdma_cm_core *cm_core);
+void irdma_next_iw_state(struct irdma_qp *iwqp, u8 state, u8 del_hash, u8 term,
+ u8 term_len);
+int irdma_send_syn(struct irdma_cm_node *cm_node, u32 sendack);
+int irdma_send_reset(struct irdma_cm_node *cm_node);
+struct irdma_cm_node *irdma_find_node(struct irdma_cm_core *cm_core,
+ u16 rem_port, u32 *rem_addr, u16 loc_port,
+ u32 *loc_addr, u16 vlan_id);
+enum irdma_status_code irdma_hw_flush_wqes(struct irdma_pci_f *rf,
+ struct irdma_sc_qp *qp,
+ struct irdma_qp_flush_info *info,
+ bool wait);
+void irdma_gen_ae(struct irdma_pci_f *rf, struct irdma_sc_qp *qp,
+ struct irdma_gen_ae_info *info, bool wait);
+void irdma_copy_ip_ntohl(u32 *dst, __be32 *src);
+void irdma_copy_ip_htonl(__be32 *dst, u32 *src);
+u16 irdma_get_vlan_ipv4(u32 *addr);
+struct net_device *irdma_netdev_vlan_ipv6(u32 *addr, u16 *vlan_id, u8 *mac);
+struct ib_mr *irdma_reg_phys_mr(struct ib_pd *ib_pd, u64 addr, u64 size,
+ int acc, u64 *iova_start);
+int irdma_upload_qp_context(struct irdma_qp *iwqp, bool freeze, bool raw);
+void irdma_cqp_ce_handler(struct irdma_pci_f *rf, struct irdma_sc_cq *cq);
+int irdma_ah_cqp_op(struct irdma_pci_f *rf, struct irdma_sc_ah *sc_ah, u8 cmd,
+ bool wait,
+ void (*callback_fcn)(struct irdma_cqp_request *cqp_request),
+ void *cb_param);
+void irdma_gsi_ud_qp_ah_cb(struct irdma_cqp_request *cqp_request);
+int irdma_inetaddr_event(struct notifier_block *notifier, unsigned long event,
+ void *ptr);
+int irdma_inet6addr_event(struct notifier_block *notifier, unsigned long event,
+ void *ptr);
+int irdma_net_event(struct notifier_block *notifier, unsigned long event,
+ void *ptr);
+int irdma_netdevice_event(struct notifier_block *notifier, unsigned long event,
+ void *ptr);
+void irdma_add_ip(struct irdma_device *iwdev);
+void cqp_compl_worker(struct work_struct *work);
+#endif /* IRDMA_MAIN_H */
--
1.8.3.1
