new file mode 100644
@@ -0,0 +1,250 @@
+// SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
+/* Copyright (c) 2019, Intel Corporation. */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <net/addrconf.h>
+#include "main.h"
+#include "i40iw_hw.h"
+#include "i40e_client.h"
+#define CLIENT_IW_INTERFACE_VERSION_MAJOR 0
+#define CLIENT_IW_INTERFACE_VERSION_MINOR 01
+#define CLIENT_IW_INTERFACE_VERSION_BUILD 00
+
+/**
+ * i40iw_request_reset - Request a reset
+ * @rf: RDMA PCI function
+ *
+ */
+void i40iw_request_reset(struct irdma_pci_f *rf)
+{
+ struct i40e_info *ldev = (struct i40e_info *)rf->ldev.if_ldev;
+
+ ldev->ops->request_reset(ldev, rf->ldev.if_client, 1);
+}
+
+/**
+ * i40iw_open - client interface operation open for iwarp/uda device
+ * @ldev: lan device information
+ * @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 *ldev, struct i40e_client *client)
+{
+ struct irdma_device *iwdev = NULL;
+ struct irdma_handler *hdl = NULL;
+ struct irdma_priv_ldev *pldev;
+ struct irdma_sc_dev *dev;
+ struct irdma_pci_f *rf;
+ struct irdma_l2params l2params = {};
+ int err_code = -EIO;
+ int i;
+ u16 qset;
+ u16 last_qset = IRDMA_NO_QSET;
+
+ hdl = irdma_find_handler(ldev->pcidev);
+ if (hdl)
+ return 0;
+
+ hdl = kzalloc((sizeof(*hdl) + sizeof(*iwdev)), GFP_KERNEL);
+ if (!hdl)
+ return -ENOMEM;
+
+ iwdev = (struct irdma_device *)((u8 *)hdl + sizeof(*hdl));
+
+ iwdev->param_wq = alloc_ordered_workqueue("l2params", WQ_MEM_RECLAIM);
+ if (!iwdev->param_wq)
+ goto error;
+
+ rf = &hdl->rf;
+ rf->hdl = hdl;
+ dev = &rf->sc_dev;
+ dev->back_dev = rf;
+ rf->rdma_ver = IRDMA_GEN_1;
+ irdma_init_rf_params(rf);
+ rf->init_hw = i40iw_init_hw;
+ rf->hw.hw_addr = ldev->hw_addr;
+ rf->pdev = ldev->pcidev;
+ rf->netdev = ldev->netdev;
+
+ iwdev->rf = rf;
+ iwdev->hdl = hdl;
+ iwdev->ldev = &rf->ldev;
+ 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 = ldev->netdev;
+ iwdev->create_ilq = true;
+ iwdev->vsi_num = 0;
+
+ pldev = &rf->ldev;
+ hdl->ldev = pldev;
+ pldev->if_client = client;
+ pldev->if_ldev = ldev;
+ pldev->fn_num = ldev->fid;
+ pldev->ftype = ldev->ftype;
+ pldev->pf_vsi_num = 0;
+ pldev->msix_count = ldev->msix_count;
+ pldev->msix_entries = ldev->msix_entries;
+
+ if (irdma_ctrl_init_hw(rf))
+ goto error;
+
+ l2params.mtu =
+ (ldev->params.mtu) ? ldev->params.mtu : IRDMA_DEFAULT_MTU;
+ for (i = 0; i < I40E_CLIENT_MAX_USER_PRIORITY; i++) {
+ qset = ldev->params.qos.prio_qos[i].qs_handle;
+ l2params.up2tc[i] = ldev->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(rf, iwdev, &l2params)) {
+ irdma_deinit_ctrl_hw(rf);
+ goto error;
+ }
+
+ irdma_add_handler(hdl);
+ irdma_probe_inc_ref(ldev->netdev);
+ return 0;
+error:
+ kfree(hdl);
+ return err_code;
+}
+
+/**
+ * i40iw_l2params_worker - worker for l2 params change
+ * @work: work pointer for l2 params
+ */
+static void i40iw_l2params_worker(struct work_struct *work)
+{
+ struct l2params_work *dwork =
+ container_of(work, struct l2params_work, work);
+ struct irdma_device *iwdev = dwork->iwdev;
+
+ irdma_change_l2params(&iwdev->vsi, &dwork->l2params);
+ atomic_dec(&iwdev->params_busy);
+ kfree(work);
+}
+
+/**
+ * i40iw_l2param_change - handle qs handles for qos and mss change
+ * @ldev: lan device information
+ * @client: client for parameter change
+ * @params: new parameters from L2
+ */
+static void i40iw_l2param_change(struct i40e_info *ldev, struct i40e_client *client,
+ struct i40e_params *params)
+{
+ struct irdma_handler *hdl;
+ struct irdma_l2params *l2params;
+ struct l2params_work *work;
+ struct irdma_device *iwdev;
+ int i;
+
+ hdl = irdma_find_handler(ldev->pcidev);
+ if (!hdl)
+ return;
+
+ iwdev = (struct irdma_device *)((u8 *)hdl + sizeof(*hdl));
+
+ if (atomic_read(&iwdev->params_busy))
+ return;
+ work = kzalloc(sizeof(*work), GFP_KERNEL);
+ if (!work)
+ return;
+
+ atomic_inc(&iwdev->params_busy);
+ work->iwdev = iwdev;
+ l2params = &work->l2params;
+ for (i = 0; i < I40E_CLIENT_MAX_USER_PRIORITY; i++)
+ l2params->qs_handle_list[i] = params->qos.prio_qos[i].qs_handle;
+
+ l2params->mtu = (params->mtu) ? params->mtu : iwdev->vsi.mtu;
+
+ INIT_WORK(&work->work, i40iw_l2params_worker);
+ queue_work(iwdev->param_wq, &work->work);
+}
+
+/**
+ * i40iw_close - client interface operation close for iwarp/uda device
+ * @ldev: lan device information
+ * @client: client to close
+ *
+ * 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 *ldev, struct i40e_client *client, bool reset)
+{
+ struct irdma_handler *hdl;
+ struct irdma_pci_f *rf;
+ struct irdma_device *iwdev;
+
+ hdl = irdma_find_handler(ldev->pcidev);
+ if (!hdl)
+ return;
+ rf = &hdl->rf;
+ iwdev = (struct irdma_device *)((u8 *)hdl + sizeof(*hdl));
+ iwdev->closing = true;
+
+ if (iwdev->param_wq)
+ destroy_workqueue(iwdev->param_wq);
+
+ if (reset)
+ iwdev->reset = true;
+
+ irdma_deinit_rt_device(iwdev);
+ irdma_deinit_ctrl_hw(rf);
+ irdma_del_handler(irdma_find_handler(ldev->pcidev));
+ kfree(hdl);
+ irdma_probe_dec_ref(ldev->netdev);
+ irdma_pr_info("IRDMA hardware deinitialization complete\n");
+}
+
+/* client interface functions */
+static const struct i40e_client_ops i40e_ops = {
+ .open = i40iw_open,
+ .close = i40iw_close,
+ .l2_param_change = i40iw_l2param_change,
+ .virtchnl_receive = NULL,
+ .vf_reset = NULL,
+ .vf_enable = NULL,
+ .vf_capable = NULL
+};
+
+static struct i40e_client i40iw_client = {
+ .version.major = CLIENT_IW_INTERFACE_VERSION_MAJOR,
+ .version.minor = CLIENT_IW_INTERFACE_VERSION_MINOR,
+ .version.build = CLIENT_IW_INTERFACE_VERSION_BUILD,
+ .ops = &i40e_ops,
+ .name = "i40iw",
+ .type = I40E_CLIENT_IWARP,
+};
+
+int i40iw_reg_peer_driver(struct irdma_peer *peer, struct net_device *netdev)
+{
+ struct idc_srv_provider *sp;
+
+ sp = (struct idc_srv_provider *)netdev_priv(netdev);
+ if (sp->signature != IDC_SIGNATURE)
+ return -EINVAL;
+
+ peer->reg_peer_driver = (int (*)(void *))sp->reg_peer_driver;
+ peer->unreg_peer_driver = (int (*)(void *))sp->unreg_peer_driver;
+
+ return peer->reg_peer_driver(&i40iw_client);
+}
+
+void i40iw_unreg_peer_driver(struct irdma_peer *peer)
+{
+ peer->unreg_peer_driver(&i40iw_client);
+}
new file mode 100644
@@ -0,0 +1,430 @@
+// SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
+/* Copyright (c) 2019, Intel Corporation. */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <ice_idc.h>
+#include "main.h"
+#include "ws.h"
+#include "icrdma_hw.h"
+
+void irdma_add_dev_ref(struct irdma_sc_dev *dev)
+{
+ try_module_get(THIS_MODULE);
+}
+
+void irdma_put_dev_ref(struct irdma_sc_dev *dev)
+{
+ module_put(THIS_MODULE);
+}
+
+/**
+ * irdma_lan_register_qset - Register qset with LAN driver
+ * @vsi: vsi structure
+ * @tc_node: Traffic class node
+ */
+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_peer_dev *ldev = (struct ice_peer_dev *)iwdev->ldev->if_ldev;
+ struct ice_res rdma_qset_res = {};
+ int ret;
+
+ if (ldev->ops->alloc_res) {
+ rdma_qset_res.cnt_req = 1;
+ rdma_qset_res.res_type = ICE_RDMA_QSETS_TXSCHED;
+ rdma_qset_res.res[0].res.qsets.qs_handle = tc_node->qs_handle;
+ rdma_qset_res.res[0].res.qsets.tc = tc_node->traffic_class;
+ rdma_qset_res.res[0].res.qsets.vsi_id = vsi->vsi_idx;
+ ret = ldev->ops->alloc_res(ldev, &rdma_qset_res, 0);
+ if (ret) {
+ irdma_debug(vsi->dev, IRDMA_DEBUG_WS,
+ "LAN alloc_res for rdma qset failed.\n");
+ return IRDMA_ERR_NO_MEMORY;
+ }
+
+ tc_node->l2_sched_node_id = rdma_qset_res.res[0].res.qsets.teid;
+ vsi->qos[tc_node->user_pri].l2_sched_node_id =
+ rdma_qset_res.res[0].res.qsets.teid;
+ }
+
+ return 0;
+}
+
+/**
+ * irdma_lan_unregister_qset - Unregister qset with LAN driver
+ * @vsi: vsi structure
+ * @tc_node: Traffic class node
+ */
+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_peer_dev *ldev = (struct ice_peer_dev *)iwdev->ldev->if_ldev;
+ struct ice_res rdma_qset_res = {};
+
+ if (ldev->ops->free_res) {
+ rdma_qset_res.res_allocated = 1;
+ rdma_qset_res.res_type = ICE_RDMA_QSETS_TXSCHED;
+ rdma_qset_res.res[0].res.qsets.vsi_id = vsi->vsi_idx;
+ rdma_qset_res.res[0].res.qsets.teid = tc_node->l2_sched_node_id;
+ rdma_qset_res.res[0].res.qsets.qs_handle = tc_node->qs_handle;
+
+ if (ldev->ops->free_res(ldev, &rdma_qset_res))
+ irdma_debug(vsi->dev, IRDMA_DEBUG_WS, "LAN free_res for rdma qset failed.\n");
+ }
+}
+
+/**
+ * irdma_log_invalid_mtu: log warning on invalid mtu
+ * @mtu: maximum tranmission unit
+ */
+static void irdma_log_invalid_mtu(u16 mtu)
+{
+ if (mtu < IRDMA_MIN_MTU_IPV4)
+ irdma_pr_warn("Current MTU setting of %d is too low for RDMA traffic. Minimum MTU is 576 for IPv4 and 1280 for IPv6\n",
+ mtu);
+ else if (mtu < IRDMA_MIN_MTU_IPV6)
+ irdma_pr_warn("Current MTU setting of %d is too low for IPv6 RDMA traffic, the minimum is 1280\n",
+ mtu);
+}
+
+/**
+ * irdma_event_handler - Called by LAN driver to notify events
+ * @peer_dev: Peer device structure
+ * @event: event from LAN driver
+ */
+static void irdma_event_handler(struct ice_peer_dev *ldev,
+ struct ice_event *event)
+{
+ struct irdma_l2params l2params = {};
+ struct irdma_device *iwdev;
+ u8 first_tc;
+ int i;
+
+ iwdev = irdma_find_netdev(ldev->netdev);
+ if (!iwdev)
+ return;
+
+ if (test_bit(ICE_EVENT_LINK_CHANGE, event->type)) {
+ irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_CLNT, "LINK_CHANGE event\n");
+ } else if (test_bit(ICE_EVENT_MTU_CHANGE, event->type)) {
+ irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_CLNT,
+ "new MTU = %d\n", event->info.mtu);
+ if (iwdev->vsi.mtu != event->info.mtu) {
+ l2params.mtu = event->info.mtu;
+ l2params.mtu_changed = true;
+ irdma_log_invalid_mtu(l2params.mtu);
+ irdma_change_l2params(&iwdev->vsi, &l2params);
+ }
+ } else if (test_bit(ICE_EVENT_TC_CHANGE, event->type)) {
+ if (iwdev->vsi.tc_change_pending)
+ return;
+ iwdev->vsi.tc_change_pending = true;
+ irdma_suspend_qps(&iwdev->vsi);
+
+ /* 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);
+ } else if (test_bit(ICE_EVENT_TC_CHANGE, event->type)) {
+ if (!iwdev->vsi.tc_change_pending)
+ return;
+ l2params.tc_changed = true;
+ irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_CLNT, "TC Change\n");
+ first_tc = event->info.port_qos.up2tc[0];
+ iwdev->dcb = false;
+ for (i = 0; i < ICE_IDC_MAX_USER_PRIORITY; ++i) {
+ l2params.up2tc[i] = event->info.port_qos.up2tc[i];
+ if (first_tc != l2params.up2tc[i])
+ iwdev->dcb = true;
+ }
+ irdma_change_l2params(&iwdev->vsi, &l2params);
+ } else if (test_bit(ICE_EVENT_API_CHANGE, event->type)) {
+ irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_CLNT, "API_CHANGE\n");
+ }
+}
+
+static void irdma_enable_lb(struct irdma_device *iwdev)
+{
+ u32 val;
+
+ val = rd32(iwdev->rf->sc_dev.hw, VSI_RXSWCTRL(iwdev->vsi.vsi_idx));
+ val &= ~VSI_RXSWCTRL_SRCPRUNEENABLE_M;
+ wr32(iwdev->rf->sc_dev.hw, (0x00205000 + (iwdev->vsi.vsi_idx * 4)), val);
+}
+
+/**
+ * irdma_open - client interface operation open for RDMA device
+ * @ldev: lan device information
+ *
+ * Called by the lan driver during the processing of client
+ * register.
+ */
+static void irdma_open(struct ice_peer_dev *ldev)
+{
+ struct irdma_handler *hdl;
+ struct irdma_device *iwdev;
+ struct irdma_sc_dev *dev;
+ enum irdma_status_code status;
+ struct ice_event events = {};
+ struct irdma_pci_f *rf;
+ struct irdma_priv_ldev *pldev;
+ struct irdma_l2params l2params = {};
+ int i;
+
+ hdl = irdma_find_handler(ldev->pdev);
+ if (!hdl)
+ return;
+ rf = &hdl->rf;
+ if (rf->init_state != CEQ0_CREATED)
+ return;
+ iwdev = irdma_find_netdev(ldev->netdev);
+ if (iwdev)
+ return;
+ iwdev = kzalloc(sizeof(*iwdev), GFP_KERNEL);
+ if (!iwdev)
+ return;
+
+ iwdev->hdl = hdl;
+ iwdev->rf = rf;
+ iwdev->ldev = &rf->ldev;
+ pldev = &rf->ldev;
+ pldev->pf_vsi_num = ldev->pf_vsi_num;
+
+ /* Set configfs default values */
+ iwdev->push_mode = 0;
+ iwdev->rcv_wnd = IRDMA_CM_DEFAULT_RCV_WND_SCALED;
+ iwdev->rcv_wscale = IRDMA_CM_DEFAULT_RCV_WND_SCALE;
+
+ dev = &hdl->rf.sc_dev;
+ iwdev->netdev = ldev->netdev;
+ iwdev->create_ilq = true;
+ if (rf->roce_ena & (1 << ldev->index)) { /* A bit per port */
+ iwdev->roce_mode = true;
+ iwdev->create_ilq = false;
+ }
+ l2params.mtu = ldev->initial_mtu;
+
+ l2params.num_tc = ldev->initial_qos_info.num_tc;
+ l2params.num_apps = ldev->initial_qos_info.num_apps;
+ l2params.vsi_prio_type = ldev->initial_qos_info.vsi_priority_type;
+ l2params.vsi_rel_bw = ldev->initial_qos_info.vsi_relative_bw;
+ for (i = 0; i < l2params.num_tc; i++) {
+ l2params.tc_info[i].egress_virt_up =
+ ldev->initial_qos_info.tc_info[i].egress_virt_up;
+ l2params.tc_info[i].ingress_virt_up =
+ ldev->initial_qos_info.tc_info[i].ingress_virt_up;
+ l2params.tc_info[i].prio_type =
+ ldev->initial_qos_info.tc_info[i].prio_type;
+ l2params.tc_info[i].rel_bw =
+ ldev->initial_qos_info.tc_info[i].rel_bw;
+ l2params.tc_info[i].tc_ctx =
+ ldev->initial_qos_info.tc_info[i].tc_ctx;
+ }
+ for (i = 0; i < ICE_IDC_MAX_USER_PRIORITY; i++)
+ l2params.up2tc[i] = ldev->initial_qos_info.up2tc[i];
+
+ iwdev->vsi_num = ldev->pf_vsi_num;
+ ldev->ops->update_vsi_filter(ldev, ICE_RDMA_FILTER_BOTH, true);
+
+ status = irdma_rt_init_hw(rf, iwdev, &l2params);
+ if (status)
+ goto error;
+
+ events.reporter = ldev;
+ set_bit(ICE_EVENT_LINK_CHANGE, events.type);
+ set_bit(ICE_EVENT_MTU_CHANGE, events.type);
+ set_bit(ICE_EVENT_TC_CHANGE, events.type);
+ set_bit(ICE_EVENT_API_CHANGE, events.type);
+
+ if (ldev->ops->reg_for_notification)
+ ldev->ops->reg_for_notification(ldev, &events);
+ irdma_enable_lb(iwdev);
+ irdma_dev_info(dev, "IRDMA VSI Open Successful");
+ init_waitqueue_head(&iwdev->close_wq);
+ init_waitqueue_head(&iwdev->suspend_wq);
+
+ return;
+error:
+ list_del(&iwdev->list);
+ kfree(iwdev);
+}
+
+/**
+ * irdma_close - client interface operation close for iwarp/uda device
+ * @ldev: lan device information
+ * @client: client to close
+ *
+ * Called by the lan driver during the processing of client unregister
+ * Destroy and clean up the driver resources
+ */
+static void irdma_close(struct ice_peer_dev *ldev, enum ice_close_reason reason)
+{
+ struct irdma_device *iwdev;
+
+ iwdev = irdma_find_netdev(ldev->netdev);
+ if (!iwdev)
+ return;
+
+ iwdev->closing = true;
+ if (reason == ICE_REASON_HW_RESET_PENDING) {
+ iwdev->reset = true;
+ iwdev->rf->reset = true;
+ }
+
+ if (iwdev->init_state >= CEQ0_CREATED)
+ irdma_deinit_rt_device(iwdev);
+
+ kfree(iwdev);
+ ldev->ops->update_vsi_filter(ldev, ICE_RDMA_FILTER_BOTH, false);
+ irdma_pr_info("IRDMA VSI close complete\n");
+}
+
+/**
+ * irdma_remove - client interface remove operation for RDMA
+ * @ldev: lan device information
+ *
+ * Called on module unload.
+ */
+static int irdma_remove(struct ice_peer_dev *ldev)
+{
+ struct irdma_handler *hdl;
+ struct irdma_pci_f *rf;
+
+ hdl = irdma_find_handler(ldev->pdev);
+ if (!hdl)
+ return 0;
+
+ if (!list_empty(&hdl->rf.vsi_dev_list))
+ return -EBUSY;
+
+ rf = &hdl->rf;
+ if (rf->init_state != CEQ0_CREATED)
+ return -EBUSY;
+
+ destroy_workqueue(rf->free_qp_wq);
+ irdma_deinit_ctrl_hw(rf);
+ irdma_del_handler(hdl);
+ kfree(hdl);
+ irdma_probe_dec_ref(ldev->netdev);
+ irdma_pr_info("IRDMA hardware deinitialization complete\n");
+
+ return 0;
+}
+
+static const struct ice_peer_ops irdma_peer_ops = {
+ .event_handler = irdma_event_handler,
+ .close = irdma_close,
+ .open = irdma_open,
+};
+
+/**
+ * irdma_probe - client interface probe operation for RDMA dev
+ * @ldev: lan device information
+ *
+ * Called by the lan driver during the processing of client register
+ * Create device resources, set up queues, pble and hmc objects.
+ * Return 0 if successful, otherwise return error
+ */
+static int irdma_probe(struct ice_peer_dev *ldev)
+{
+ struct irdma_handler *hdl;
+ struct irdma_pci_f *rf;
+ struct irdma_sc_dev *dev;
+ struct irdma_priv_ldev *pldev;
+
+ irdma_pr_info("probe: ldev=%p, ldev->dev.pdev.bus->number=%d, ldev->netdev=%p\n",
+ ldev, ldev->pdev->bus->number, ldev->netdev);
+ hdl = irdma_find_handler(ldev->pdev);
+ if (hdl)
+ return -EBUSY;
+
+ hdl = kzalloc(sizeof(*hdl), GFP_KERNEL);
+ if (!hdl)
+ return IRDMA_ERR_NO_MEMORY;
+
+ rf = &hdl->rf;
+ pldev = &rf->ldev;
+ hdl->ldev = pldev;
+ rf->hdl = hdl;
+ dev = &rf->sc_dev;
+ dev->back_dev = rf;
+ rf->init_hw = icrdma_init_hw;
+ pldev->if_ldev = ldev;
+ rf->rdma_ver = IRDMA_GEN_2;
+ irdma_init_rf_params(rf);
+ if (rf->roce_ena & (1 << ldev->index))
+ rf->protocol_used = IRDMA_ROCE_PROTOCOL_ONLY;
+ else
+ rf->protocol_used = IRDMA_IWARP_PROTOCOL_ONLY;
+ dev->pci_rev = ldev->pdev->revision;
+ rf->default_vsi.vsi_idx = ldev->pf_vsi_num;
+ /* save information from ldev to priv_ldev*/
+ pldev->fn_num = ldev->fn_num;
+ rf->hw.hw_addr = ldev->hw_addr;
+ rf->pdev = ldev->pdev;
+ rf->netdev = ldev->netdev;
+ pldev->ftype = ldev->ftype;
+ pldev->msix_count = ldev->msix_count;
+ pldev->msix_entries = ldev->msix_entries;
+ irdma_add_handler(hdl);
+ if (irdma_ctrl_init_hw(rf)) {
+ irdma_del_handler(hdl);
+ kfree(hdl);
+ return -EIO;
+ }
+ ldev->peer_ops = &irdma_peer_ops;
+
+ irdma_probe_inc_ref(ldev->netdev);
+
+ return 0;
+}
+
+static struct ice_peer_drv irdma_client = {
+ .name = KBUILD_MODNAME,
+ .driver_id = ICE_PEER_RDMA_DRIVER,
+ .ver.major = ICE_PEER_MAJOR_VER,
+ .ver.minor = ICE_PEER_MINOR_VER,
+ .dev_id.vendor = PCI_VENDOR_ID_INTEL,
+ .dev_id.device = ICE_PEER_RDMA_DEV,
+ .probe = irdma_probe,
+ .remove = irdma_remove,
+ .driver.name = "i40iw",
+ .driver.mod_name = "i40iw",
+ .driver.owner = THIS_MODULE
+};
+
+/**
+ * icrdma_request_reset - Request a reset
+ * @rf: RDMA PCI function
+ *
+ */
+void icrdma_request_reset(struct irdma_pci_f *rf)
+{
+ struct ice_peer_dev *ldev = (struct ice_peer_dev *)rf->ldev.if_ldev;
+
+ if (ldev && ldev->ops && ldev->ops->request_reset)
+ ldev->ops->request_reset(ldev, ICE_PEER_PFR);
+}
+
+int icrdma_reg_peer_driver(struct irdma_peer *peer, struct net_device *netdev)
+{
+ struct idc_srv_provider *sp;
+
+ sp = (struct idc_srv_provider *)netdev_priv(netdev);
+ if (sp->signature != IDC_SIGNATURE)
+ return -EINVAL;
+
+ peer->reg_peer_driver = (int (*)(void *))sp->reg_peer_driver;
+ peer->unreg_peer_driver = (int (*)(void *))sp->unreg_peer_driver;
+
+ return peer->reg_peer_driver(&irdma_client);
+}
+
+void icrdma_unreg_peer_driver(struct irdma_peer *peer)
+{
+ peer->unreg_peer_driver(&irdma_client);
+}
new file mode 100644
@@ -0,0 +1,496 @@
+// SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
+/* Copyright (c) 2019, Intel Corporation. */
+
+#include "main.h"
+
+#define DRV_VER_MAJOR 0
+#define DRV_VER_MINOR 0
+#define DRV_VER_BUILD 67
+#define DRV_VER __stringify(DRV_VER_MAJOR) "." \
+ __stringify(DRV_VER_MINOR) "." __stringify(DRV_VER_BUILD)
+
+#ifndef CONFIG_DYNAMIC_DEBUG
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "debug flags: 0=disabled (default), 0x7fffffff=all");
+#endif
+
+static int resource_profile;
+module_param(resource_profile, int, 0644);
+MODULE_PARM_DESC(resource_profile, "Resource Profile: 0=PF only, 1=Weighted VF, 2=Even Distribution");
+
+static int max_rdma_vfs = 32;
+module_param(max_rdma_vfs, int, 0644);
+MODULE_PARM_DESC(max_rdma_vfs, "Maximum VF count: 0-32 32=default");
+static int roce_ena;
+module_param(roce_ena, int, 0644);
+MODULE_PARM_DESC(roce_ena, "RoCE enable bitmap: 1=port0,2=port1....0=disabled, not supported on X722");
+
+static int limits_sel;
+module_param(limits_sel, int, 0644);
+MODULE_PARM_DESC(limits_sel, "Resource limits selector, Range: 0-3");
+
+MODULE_AUTHOR("Intel Corporation, <e1000-rdma@lists.sourceforge.net>");
+MODULE_DESCRIPTION("Intel(R) Ethernet Connection RDMA Driver");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_VERSION(DRV_VER);
+/* Add an alias for i40iw once its deprecated from kernel.
+ * If required add push_mode and mpa_version as deprecated
+ * module params for i40iw compat.
+ */
+
+LIST_HEAD(irdma_handlers);
+DEFINE_SPINLOCK(irdma_handler_lock);
+
+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
+};
+
+void irdma_init_rf_params(struct irdma_pci_f *rf)
+{
+ rf->limits_sel = limits_sel;
+ if (rf->rdma_ver != IRDMA_GEN_1)
+ rf->roce_ena = roce_ena;
+ rf->rsrc_profile = (resource_profile < IRDMA_HMC_PROFILE_EQUAL) ?
+ (u8)resource_profile + IRDMA_HMC_PROFILE_DEFAULT :
+ IRDMA_HMC_PROFILE_DEFAULT;
+ rf->max_rdma_vfs = (rf->rsrc_profile != IRDMA_HMC_PROFILE_DEFAULT) ?
+ max_rdma_vfs : 0;
+ rf->max_ena_vfs = rf->max_rdma_vfs;
+#ifndef CONFIG_DYNAMIC_DEBUG
+ rf->debug = debug;
+#endif
+}
+
+/**
+ * irdma_find_netdev - find a vsi device given a netdev
+ * @netdev: pointer to net_device
+ */
+struct irdma_device *irdma_find_netdev(struct net_device *netdev)
+{
+ struct irdma_device *iwdev;
+ struct irdma_handler *hdl;
+ struct list_head *pos;
+ struct list_head *tmp;
+ unsigned long flags;
+
+ spin_lock_irqsave(&irdma_handler_lock, flags);
+ list_for_each_entry(hdl, &irdma_handlers, list) {
+ list_for_each_safe(pos, tmp, &hdl->rf.vsi_dev_list) {
+ iwdev = container_of(pos, struct irdma_device, list);
+ if (netdev == iwdev->netdev) {
+ spin_unlock_irqrestore(&irdma_handler_lock,
+ flags);
+ return iwdev;
+ }
+ }
+ }
+ spin_unlock_irqrestore(&irdma_handler_lock, flags);
+
+ return NULL;
+}
+
+/**
+ * irdma_find_ice_handler - find a handler given a client info
+ * @ldev: pointer to a client info
+ */
+struct irdma_handler *irdma_find_handler(struct pci_dev *pdev)
+{
+ struct irdma_handler *hdl;
+ unsigned long flags;
+
+ spin_lock_irqsave(&irdma_handler_lock, flags);
+ list_for_each_entry(hdl, &irdma_handlers, list) {
+ if (hdl->rf.pdev->devfn == pdev->devfn &&
+ hdl->rf.pdev->bus->number == pdev->bus->number) {
+ spin_unlock_irqrestore(&irdma_handler_lock, flags);
+ return hdl;
+ }
+ }
+ spin_unlock_irqrestore(&irdma_handler_lock, flags);
+
+ return NULL;
+}
+
+/**
+ * irdma_find_iwdev - find a vsi device given a name
+ * @name: name of iwdev
+ */
+struct irdma_device *irdma_find_iwdev(const char *name)
+{
+ struct irdma_handler *hdl;
+ struct list_head *pos;
+ struct list_head *tmp;
+ struct irdma_device *iwdev;
+ unsigned long flags;
+
+ spin_lock_irqsave(&irdma_handler_lock, flags);
+ list_for_each_entry(hdl, &irdma_handlers, list) {
+ list_for_each_safe(pos, tmp, &hdl->rf.vsi_dev_list) {
+ iwdev = container_of(pos, struct irdma_device, list);
+ if (!strcmp(name, iwdev->iwibdev->ibdev.name)) {
+ spin_unlock_irqrestore(&irdma_handler_lock,
+ flags);
+ return iwdev;
+ }
+ }
+ }
+ spin_unlock_irqrestore(&irdma_handler_lock, flags);
+
+ return NULL;
+}
+
+/**
+ * irdma_add_handler - add a handler to the list
+ * @hdl: handler to be added to the handler list
+ */
+void irdma_add_handler(struct irdma_handler *hdl)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&irdma_handler_lock, flags);
+ list_add(&hdl->list, &irdma_handlers);
+ spin_unlock_irqrestore(&irdma_handler_lock, flags);
+}
+
+/**
+ * irdma_del_handler - delete a handler from the list
+ * @hdl: handler to be deleted from the handler list
+ */
+void irdma_del_handler(struct irdma_handler *hdl)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&irdma_handler_lock, flags);
+ list_del(&hdl->list);
+ spin_unlock_irqrestore(&irdma_handler_lock, flags);
+}
+
+/**
+ * irdma_register_notifiers - register tcp ip notifiers
+ */
+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);
+}
+
+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);
+}
+
+/**
+ * irdma_add_ipv6_addr - add ipv6 address to the hw arp table
+ * @iwdev: iwarp device
+ */
+static void irdma_add_ipv6_addr(struct irdma_device *iwdev)
+{
+ struct net_device *ip_dev;
+ struct inet6_dev *idev;
+ struct inet6_ifaddr *ifp, *tmp;
+ u32 local_ipaddr6[4];
+
+ rcu_read_lock();
+ for_each_netdev_rcu(&init_net, ip_dev) {
+ if (((rdma_vlan_dev_vlan_id(ip_dev) < 0xFFFF &&
+ rdma_vlan_dev_real_dev(ip_dev) == iwdev->netdev) ||
+ ip_dev == iwdev->netdev) && ip_dev->flags & IFF_UP) {
+ idev = __in6_dev_get(ip_dev);
+ if (!idev) {
+ irdma_dev_err(&iwdev->rf->sc_dev,
+ "ipv6 inet device not found\n");
+ break;
+ }
+ list_for_each_entry_safe(ifp, tmp, &idev->addr_list, if_list) {
+ irdma_dev_info(&iwdev->rf->sc_dev,
+ "IP=%pI6, vlan_id=%d, MAC=%pM\n",
+ &ifp->addr,
+ rdma_vlan_dev_vlan_id(ip_dev),
+ ip_dev->dev_addr);
+
+ irdma_copy_ip_ntohl(local_ipaddr6,
+ ifp->addr.in6_u.u6_addr32);
+ irdma_manage_arp_cache(iwdev->rf,
+ ip_dev->dev_addr,
+ local_ipaddr6,
+ false,
+ IRDMA_ARP_ADD);
+ }
+ }
+ }
+ rcu_read_unlock();
+}
+
+/**
+ * irdma_add_ipv4_addr - add ipv4 address to the hw arp table
+ * @iwdev: iwarp device
+ */
+static void irdma_add_ipv4_addr(struct irdma_device *iwdev)
+{
+ struct net_device *dev;
+ struct in_device *idev;
+ bool got_lock = true;
+ u32 ip_addr;
+
+ if (!rtnl_trylock())
+ got_lock = false;
+
+ for_each_netdev(&init_net, dev) {
+ if (((rdma_vlan_dev_vlan_id(dev) < 0xFFFF &&
+ rdma_vlan_dev_real_dev(dev) == iwdev->netdev) ||
+ dev == iwdev->netdev) && dev->flags & IFF_UP) {
+ idev = in_dev_get(dev);
+ for_ifa(idev) {
+ irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_CM,
+ "IP=%pI4, vlan_id=%d, MAC=%pM\n",
+ &ifa->ifa_address,
+ rdma_vlan_dev_vlan_id(dev),
+ dev->dev_addr);
+
+ ip_addr = ntohl(ifa->ifa_address);
+ irdma_manage_arp_cache(iwdev->rf,
+ dev->dev_addr,
+ &ip_addr,
+ true,
+ IRDMA_ARP_ADD);
+ }
+ endfor_ifa(idev);
+ in_dev_put(idev);
+ }
+ }
+ if (got_lock)
+ rtnl_unlock();
+}
+
+/**
+ * irdma_add_ip - add ip addresses
+ * @iwdev: iwarp device
+ *
+ * Add ipv4/ipv6 addresses to the arp cache
+ */
+void irdma_add_ip(struct irdma_device *iwdev)
+{
+ irdma_add_ipv4_addr(iwdev);
+ irdma_add_ipv6_addr(iwdev);
+}
+
+/**
+ * irdma_request_reset - Request a reset
+ * @rf: RDMA PCI function
+ *
+ */
+void irdma_request_reset(struct irdma_pci_f *rf)
+{
+ irdma_dev_warn(&rf->sc_dev, "Requesting a a reset from LAN driver\n");
+ if (rf->rdma_ver == IRDMA_GEN_1)
+ i40iw_request_reset(rf);
+ else
+ icrdma_request_reset(rf);
+}
+
+static struct irdma_peer_drvs_list *irdma_peer_drvs;
+
+/**
+ * irdma_probe_inc_ref - Increment ref count for a probe
+ * @netdev: netdev pointer
+ */
+void irdma_probe_inc_ref(struct net_device *netdev)
+{
+ struct irdma_peer *peer;
+ u32 i;
+
+ for (i = 0; i < IRDMA_MAX_PEERS; i++) {
+ peer = &irdma_peer_drvs->peer[i];
+ if (!strncmp(netdev->dev.parent->driver->name, peer->name,
+ sizeof(peer->name)))
+ break;
+ }
+
+ if (i != IRDMA_MAX_PEERS)
+ atomic_inc(&peer->ref_count);
+}
+
+/**
+ * irdma_probe_dec_ref - Decrement ref count for a probe
+ * @netdev: netdev pointer
+ */
+void irdma_probe_dec_ref(struct net_device *netdev)
+{
+ struct irdma_peer *peer;
+ u32 i;
+
+ for (i = 0; i < IRDMA_MAX_PEERS; i++) {
+ peer = &irdma_peer_drvs->peer[i];
+ if (!strcmp(netdev->dev.parent->driver->name, peer->name)) {
+ if (peer->state == IRDMA_STATE_VALID &&
+ atomic_dec_and_test(&peer->ref_count)) {
+ peer->state = IRDMA_STATE_INVALID;
+ switch (i) {
+ case I40E_PEER_TYPE:
+ if (IS_ENABLED(CONFIG_INFINIBAND_I40IW))
+ return;
+
+ i40iw_unreg_peer_driver(peer);
+ break;
+ case ICE_PEER_TYPE:
+ icrdma_unreg_peer_driver(peer);
+ break;
+ default:
+ return;
+ }
+ module_put(peer->module);
+ }
+ break;
+ }
+ }
+}
+
+/**
+ * irdma_handle_netdev - Find peer driver and register with it
+ * @netdev: netdev of peer driver
+ */
+void irdma_handle_netdev(struct net_device *netdev)
+{
+ struct irdma_peer *peer;
+ int ret;
+ u32 i;
+
+ for (i = 0; i < IRDMA_MAX_PEERS; i++) {
+ peer = &irdma_peer_drvs->peer[i];
+ if (netdev->dev.parent && netdev->dev.parent->driver &&
+ !strncmp(netdev->dev.parent->driver->name, peer->name,
+ sizeof(peer->name)))
+ break;
+ }
+
+ if (i == IRDMA_MAX_PEERS || peer->state == IRDMA_STATE_VALID)
+ return;
+
+ /* Found the driver */
+ peer = &irdma_peer_drvs->peer[i];
+ peer->module = netdev->dev.parent->driver->owner;
+
+ switch (i) {
+ case I40E_PEER_TYPE:
+ if (IS_ENABLED(CONFIG_INFINIBAND_I40IW))
+ return;
+
+ ret = i40iw_reg_peer_driver(peer, netdev);
+ break;
+ case ICE_PEER_TYPE:
+ ret = icrdma_reg_peer_driver(peer, netdev);
+ break;
+ default:
+ return;
+ }
+
+ /* call the register routine */
+ if (!ret) {
+ peer->state = IRDMA_STATE_VALID;
+ try_module_get(peer->module);
+ } else {
+ peer->state = IRDMA_STATE_REG_FAILED;
+ }
+}
+
+/**
+ * irdma_find_peers - Search netdevs for a peer drivers
+ */
+static void irdma_find_peers(void)
+{
+ struct net_device *dev;
+
+ rtnl_lock();
+ for_each_netdev(&init_net, dev)
+ irdma_handle_netdev(dev);
+ rtnl_unlock();
+}
+
+/**
+ * irdma_unreg_peers - Unregister with all peers
+ */
+static void irdma_unreg_peers(void)
+{
+ struct irdma_peer *peer;
+ u32 i;
+
+ for (i = 0; i < IRDMA_MAX_PEERS; i++) {
+ peer = &irdma_peer_drvs->peer[i];
+ if (peer->state == IRDMA_STATE_VALID) {
+ peer->state = IRDMA_STATE_INVALID;
+ switch (i) {
+ case I40E_PEER_TYPE:
+ if (IS_ENABLED(CONFIG_INFINIBAND_I40IW))
+ return;
+
+ i40iw_unreg_peer_driver(peer);
+ break;
+ case ICE_PEER_TYPE:
+ icrdma_unreg_peer_driver(peer);
+ break;
+ default:
+ return;
+ }
+ module_put(peer->module);
+ }
+ }
+}
+
+/**
+ * irdma_init_module - driver initialization function
+ *
+ * First function to call when the driver is loaded
+ * Register the driver as ice client and port mapper client
+ */
+static int __init irdma_init_module(void)
+{
+ int ret = 0;
+ struct irdma_peer *peer;
+
+ irdma_peer_drvs = kzalloc(sizeof(*irdma_peer_drvs), GFP_KERNEL);
+ if (!irdma_peer_drvs)
+ return -ENOMEM;
+ peer = &irdma_peer_drvs->peer[I40E_PEER_TYPE];
+ strncpy(peer->name, "i40e", sizeof(peer->name));
+ peer = &irdma_peer_drvs->peer[ICE_PEER_TYPE];
+ strncpy(peer->name, "ice", sizeof(peer->name));
+ irdma_find_peers();
+
+ irdma_register_notifiers();
+
+ return ret;
+}
+
+/**
+ * irdma_exit_module - driver exit clean up function
+ *
+ * The function is called just before the driver is unloaded
+ * Unregister the driver as ice client and port mapper client
+ */
+static void __exit irdma_exit_module(void)
+{
+ irdma_unregister_notifiers();
+ irdma_unreg_peers();
+ kfree(irdma_peer_drvs);
+}
+
+module_init(irdma_init_module);
+module_exit(irdma_exit_module);
new file mode 100644
@@ -0,0 +1,709 @@
+/* SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB */
+/* Copyright (c) 2019, 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 <linux/netdevice.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>
+#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 <crypto/hash.h>
+#include "status.h"
+#include "osdep.h"
+#include "defs.h"
+#include "hmc.h"
+#include "type.h"
+#include "protos.h"
+#include "pble.h"
+#include "verbs.h"
+#include "cm.h"
+#include "user.h"
+#include "puda.h"
+#include <rdma/irdma-abi.h>
+
+extern struct list_head irdma_handlers;
+extern spinlock_t irdma_handler_lock;
+
+#define IRDMA_FW_VER 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 100000
+#define IRDMA_VCHNL_EVENT_TIMEOUT 100000
+
+#define IRDMA_NO_VLAN 0xffff
+#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_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 VSI_RXSWCTRL(_VSI) (0x00205000 + ((_VSI) * 4))
+#define VSI_RXSWCTRL_MACVSIPRUNEENABLE_M BIT(8)
+#define VSI_RXSWCTRL_SRCPRUNEENABLE_M BIT(13)
+
+enum init_completion_state {
+ INVALID_STATE = 0,
+ INITIAL_STATE,
+ CQP_CREATED,
+ HMC_OBJS_CREATED,
+ CCQ_CREATED,
+ AEQ_CREATED,
+ CEQ0_CREATED, /* Last state of probe */
+ CEQS_CREATED,
+ ILQ_CREATED,
+ IEQ_CREATED,
+ PBLE_CHUNK_MEM,
+ IP_ADDR_REGISTERED,
+ RDMA_DEV_REGISTERED, /* Last state of open */
+};
+
+enum IRDMA_IDC_STATE {
+ IRDMA_STATE_INVALID,
+ IRDMA_STATE_VALID,
+ IRDMA_STATE_REG_FAILED
+};
+
+enum irdma_peer_type {
+ I40E_PEER_TYPE,
+ ICE_PEER_TYPE,
+ IRDMA_MAX_PEERS,
+};
+
+struct irdma_rsrc_limits {
+ u32 qplimit;
+ u32 mrlimit;
+ u32 cqlimit;
+};
+
+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;
+ atomic_t refcount;
+ void (*callback_fcn)(struct irdma_cqp_request *cqp_request, u32 num);
+ void *param;
+ struct irdma_cqp_compl_info compl_info;
+ bool waiting;
+ bool request_done;
+ bool dynamic;
+};
+
+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 task_struct *cqp_compl_thread;
+ struct semaphore cqp_compl_sem;
+};
+
+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;
+};
+
+struct irdma_aeq {
+ struct irdma_sc_aeq sc_aeq;
+ struct irdma_dma_mem mem;
+};
+
+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 l2params_work {
+ struct work_struct work;
+ struct irdma_device *iwdev;
+ struct irdma_l2params l2params;
+};
+
+struct virtchnl_work {
+ struct work_struct work;
+ union {
+ struct irdma_cqp_request *cqp_request;
+ struct irdma_virtchnl_work_info work_info;
+ };
+};
+
+struct irdma_mc_table_info {
+ bool ipv4_valid;
+ u32 mgn;
+ u32 dest_ip[4];
+ bool lan_fwd;
+};
+
+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_priv_ldev {
+ unsigned int fn_num;
+ bool ftype;
+ u16 pf_vsi_num;
+ u16 msix_count;
+ struct msix_entry *msix_entries;
+ void *if_client;
+ void *if_ldev;
+};
+
+struct irdma_pci_f {
+ bool ooo;
+ bool reset;
+ bool rsrc_created;
+ bool stop_cqp_thread;
+ bool msix_shared;
+ u8 rsrc_profile;
+ u8 max_rdma_vfs;
+ u8 max_ena_vfs;
+ u8 *hmc_info_mem;
+ u8 *mem_rsrc;
+ u8 rdma_ver;
+ 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 roce_ena;
+ 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;
+#ifndef CONFIG_DYNAMIC_DEBUG
+ u32 debug;
+#endif
+ 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 list_head vsi_dev_list;
+ struct irdma_priv_ldev ldev;
+ struct irdma_handler *hdl;
+ struct pci_dev *pdev;
+ struct net_device *netdev;
+ 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 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 irdma_dma_mem obj_mem;
+ struct irdma_dma_mem obj_next;
+ atomic_t vchnl_msgs;
+ wait_queue_head_t vchnl_waitq;
+ struct workqueue_struct *free_qp_wq;
+ struct virtchnl_work virtchnl_w[IRDMA_MAX_PE_ENA_VF_COUNT];
+ struct irdma_sc_vsi default_vsi;
+ void *back_fcn;
+ void (*init_hw)(struct irdma_sc_dev *dev);
+};
+
+struct irdma_device {
+ struct irdma_ib_device *iwibdev;
+ struct list_head list;
+ struct irdma_pci_f *rf;
+ struct irdma_priv_ldev *ldev;
+ struct net_device *netdev;
+ struct irdma_handler *hdl;
+ struct irdma_sc_vsi vsi;
+ struct irdma_cm_core cm_core;
+ bool roce_mode;
+ u32 vendor_id;
+ u32 vendor_part_id;
+ u32 device_cap_flags;
+ u32 push_mode;
+ u32 rcv_wnd;
+ u16 mac_ip_table_idx;
+ u8 rcv_wscale;
+ bool dctcp_en;
+ bool ecn_en;
+ u16 vsi_num;
+ bool create_ilq;
+ bool roce_timely_en;
+ bool roce_dcqcn_en;
+ u8 iw_status;
+ struct tasklet_struct dpc_tasklet;
+ enum init_completion_state init_state;
+ bool dcb;
+ bool closing;
+ bool reset;
+ wait_queue_head_t close_wq;
+ wait_queue_head_t suspend_wq;
+ atomic64_t use_count;
+ struct workqueue_struct *param_wq;
+ atomic_t params_busy;
+};
+
+struct irdma_ib_device {
+ struct ib_device ibdev;
+ struct irdma_device *iwdev;
+};
+
+struct irdma_handler {
+ struct list_head list;
+ struct irdma_pci_f rf;
+ struct irdma_priv_ldev *ldev;
+ bool shared_res_created;
+};
+
+struct irdma_peer {
+ struct module *module;
+#define IRDMA_MAX_PEER_NAME_SIZE 8
+ char name[IRDMA_MAX_PEER_NAME_SIZE];
+ enum IRDMA_IDC_STATE state;
+ atomic_t ref_count;
+ int (*reg_peer_driver)(void *peer_info);
+ int (*unreg_peer_driver)(void *peer_info);
+};
+
+struct irdma_peer_drvs_list {
+ struct irdma_peer peer[IRDMA_MAX_PEERS];
+};
+/***********************************************************/
+/**
+ * to_iwdev - get device
+ * @ibdev: ib device
+ **/
+static inline struct irdma_device *to_iwdev(struct ib_device *ibdev)
+{
+ return container_of(ibdev, struct irdma_ib_device, ibdev)->iwdev;
+}
+
+/**
+ * to_ucontext - get user context
+ * @ibucontext: ib user context
+ **/
+static inline struct irdma_ucontext *to_ucontext(struct ib_ucontext *ibucontext)
+{
+ return container_of(ibucontext, struct irdma_ucontext, ibucontext);
+}
+
+/**
+ * to_iwpd - get protection domain
+ * @ibpd: ib pd
+ **/
+static inline struct irdma_pd *to_iwpd(struct ib_pd *ibpd)
+{
+ return container_of(ibpd, struct irdma_pd, ibpd);
+}
+
+/**
+ * to_iwah - get device ah
+ * @ibdev: ib ah
+ **/
+static inline struct irdma_ah *to_iwah(struct ib_ah *ibah)
+{
+ return container_of(ibah, struct irdma_ah, ibah);
+}
+
+/**
+ * to_iwmr - get device memory region
+ * @ibdev: ib memory region
+ **/
+static inline struct irdma_mr *to_iwmr(struct ib_mr *ibmr)
+{
+ return container_of(ibmr, struct irdma_mr, ibmr);
+}
+
+/**
+ * to_iwmr_from_ibfmr - get device memory region
+ * @ibfmr: ib fmr
+ **/
+static inline struct irdma_mr *to_iwmr_from_ibfmr(struct ib_fmr *ibfmr)
+{
+ return container_of(ibfmr, struct irdma_mr, ibfmr);
+}
+
+/**
+ * to_iwmw - get device memory window
+ * @ibmw: ib memory window
+ **/
+static inline struct irdma_mr *to_iwmw(struct ib_mw *ibmw)
+{
+ return container_of(ibmw, struct irdma_mr, ibmw);
+}
+
+/**
+ * to_iwcq - get completion queue
+ * @ibcq: ib cqdevice
+ **/
+static inline struct irdma_cq *to_iwcq(struct ib_cq *ibcq)
+{
+ return container_of(ibcq, struct irdma_cq, ibcq);
+}
+
+/**
+ * to_iwqp - get device qp
+ * @ibqp: ib qp
+ **/
+static inline struct irdma_qp *to_iwqp(struct ib_qp *ibqp)
+{
+ return container_of(ibqp, struct irdma_qp, ibqp);
+}
+
+/**
+ * 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);
+ irdma_debug(&rf->sc_dev, IRDMA_DEBUG_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_is_resource_allocated - detrmine if resource is
+ * allocated
+ * @iwdev: device pointer
+ * @resource_array: resource array for the resource_num
+ * @resource_num: resource number to check
+ **/
+static inline bool irdma_is_rsrc_allocated(struct irdma_pci_f *rf,
+ unsigned long *rsrc_array,
+ u32 rsrc_num)
+{
+ bool bit_is_set;
+ unsigned long flags;
+
+ spin_lock_irqsave(&rf->rsrc_lock, flags);
+
+ bit_is_set = test_bit(rsrc_num, rsrc_array);
+ spin_unlock_irqrestore(&rf->rsrc_lock, flags);
+
+ return bit_is_set;
+}
+
+/**
+ * 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);
+}
+
+void irdma_init_rf_params(struct irdma_pci_f *rf);
+enum irdma_status_code irdma_ctrl_init_hw(struct irdma_pci_f *rf);
+void irdma_deinit_ctrl_hw(struct irdma_pci_f *rf);
+enum irdma_status_code irdma_rt_init_hw(struct irdma_pci_f *rf, struct irdma_device *iwdev,
+ struct irdma_l2params *l2params);
+void irdma_deinit_rt_device(struct irdma_device *iwdev);
+void irdma_add_ref(struct ib_qp *ibqp);
+void irdma_rem_ref(struct ib_qp *ibqp);
+struct ib_qp *irdma_get_qp(struct ib_device *ibdev, int qpn);
+void irdma_flush_wqes(struct irdma_pci_f *rf,
+ struct irdma_qp *qp);
+void irdma_manage_arp_cache(struct irdma_pci_f *rf,
+ unsigned char *mac_addr,
+ u32 *ip_addr,
+ bool ipv4,
+ u32 action);
+int irdma_manage_apbvt(struct irdma_device *iwdev,
+ u16 accel_local_port,
+ bool add_port);
+struct irdma_cqp_request *irdma_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);
+struct irdma_device *irdma_find_netdev(struct net_device *netdev);
+struct irdma_handler *irdma_find_handler(struct pci_dev *pdev);
+struct irdma_device *irdma_find_iwdev(const char *name);
+void irdma_add_handler(struct irdma_handler *hdl);
+void irdma_del_handler(struct irdma_handler *hdl);
+void irdma_add_ip(struct irdma_device *iwdev);
+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);
+int irdma_register_rdma_device(struct irdma_device *iwdev);
+void irdma_port_ibevent(struct irdma_device *iwdev);
+void irdma_cm_disconn(struct irdma_qp *qp);
+
+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);
+void irdma_rem_pdusecount(struct irdma_pd *iwpd, struct irdma_device *iwdev);
+void irdma_add_pdusecount(struct irdma_pd *iwpd);
+void irdma_rem_devusecount(struct irdma_device *iwdev);
+void irdma_add_devusecount(struct irdma_device *iwdev);
+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_device *iwdev,
+ struct irdma_qp *iwqp,
+ u32 qp_num);
+void irdma_request_reset(struct irdma_pci_f *rf);
+void irdma_destroy_rdma_device(struct irdma_ib_device *iwibdev);
+void irdma_setup_cm_core(struct irdma_device *iwdev, u8 ver);
+void irdma_cleanup_cm_core(struct irdma_cm_core *cm_core);
+void irdma_process_ceq(struct irdma_pci_f *rf, struct irdma_ceq *iwceq);
+void irdma_process_aeq(struct irdma_pci_f *rf);
+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,
+ bool add_refcnt,
+ bool accelerated_list);
+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 cqp_compl_thread(void *context);
+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);
+int i40iw_reg_peer_driver(struct irdma_peer *peer, struct net_device *netdev);
+int icrdma_reg_peer_driver(struct irdma_peer *peer, struct net_device *netdev);
+void i40iw_unreg_peer_driver(struct irdma_peer *peer);
+void icrdma_unreg_peer_driver(struct irdma_peer *peer);
+void i40iw_request_reset(struct irdma_pci_f *rf);
+void icrdma_request_reset(struct irdma_pci_f *rf);
+void irdma_probe_inc_ref(struct net_device *netdev);
+void irdma_probe_dec_ref(struct net_device *netdev);
+void irdma_handle_netdev(struct net_device *netdev);
+void irdma_register_notifiers(void);
+void irdma_unregister_notifiers(void);
+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, u32 num),
+ void *cb_param);
+void irdma_gsi_ud_qp_ah_cb(struct irdma_cqp_request *cqp_request, u32 unused);
+void irdma_destroy_ah_cb(struct irdma_cqp_request *cqp_request, u32 unused);
+int irdma_configfs_init(void);
+void irdma_configfs_exit(void);
+#endif /* IRDMA_MAIN_H */