Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 217 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/irdma/i40iw_if.c b/drivers/infiniband/hw/irdma/i40iw_if.c
new file mode 100644
index 000000000..4053ead32
--- /dev/null
+++ b/drivers/infiniband/hw/irdma/i40iw_if.c
@@ -0,0 +1,217 @@
+// 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->rf->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->pf_id = cdev_info->fid;
+	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_vlan_mode = 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;
+
+	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,
+};