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2194 lines
57 KiB
2194 lines
57 KiB
/* QLogic qede NIC Driver
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* Copyright (c) 2015-2017 QLogic Corporation
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and /or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <linux/crash_dump.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/version.h>
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#include <linux/device.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/skbuff.h>
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#include <linux/errno.h>
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#include <linux/list.h>
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#include <linux/string.h>
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#include <linux/dma-mapping.h>
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#include <linux/interrupt.h>
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#include <asm/byteorder.h>
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#include <asm/param.h>
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#include <linux/io.h>
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#include <linux/netdev_features.h>
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#include <linux/udp.h>
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#include <linux/tcp.h>
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#include <net/udp_tunnel.h>
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#include <linux/ip.h>
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#include <net/ipv6.h>
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#include <net/tcp.h>
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#include <linux/if_ether.h>
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#include <linux/if_vlan.h>
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#include <linux/pkt_sched.h>
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#include <linux/ethtool.h>
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#include <linux/in.h>
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#include <linux/random.h>
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#include <net/ip6_checksum.h>
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#include <linux/bitops.h>
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#include <linux/vmalloc.h>
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#include "qede.h"
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#include "qede_ptp.h"
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static char version[] =
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"QLogic FastLinQ 4xxxx Ethernet Driver qede " DRV_MODULE_VERSION "\n";
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MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx Ethernet Driver");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(DRV_MODULE_VERSION);
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static uint debug;
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module_param(debug, uint, 0);
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MODULE_PARM_DESC(debug, " Default debug msglevel");
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static const struct qed_eth_ops *qed_ops;
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#define CHIP_NUM_57980S_40 0x1634
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#define CHIP_NUM_57980S_10 0x1666
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#define CHIP_NUM_57980S_MF 0x1636
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#define CHIP_NUM_57980S_100 0x1644
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#define CHIP_NUM_57980S_50 0x1654
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#define CHIP_NUM_57980S_25 0x1656
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#define CHIP_NUM_57980S_IOV 0x1664
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#define CHIP_NUM_AH 0x8070
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#define CHIP_NUM_AH_IOV 0x8090
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#ifndef PCI_DEVICE_ID_NX2_57980E
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#define PCI_DEVICE_ID_57980S_40 CHIP_NUM_57980S_40
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#define PCI_DEVICE_ID_57980S_10 CHIP_NUM_57980S_10
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#define PCI_DEVICE_ID_57980S_MF CHIP_NUM_57980S_MF
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#define PCI_DEVICE_ID_57980S_100 CHIP_NUM_57980S_100
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#define PCI_DEVICE_ID_57980S_50 CHIP_NUM_57980S_50
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#define PCI_DEVICE_ID_57980S_25 CHIP_NUM_57980S_25
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#define PCI_DEVICE_ID_57980S_IOV CHIP_NUM_57980S_IOV
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#define PCI_DEVICE_ID_AH CHIP_NUM_AH
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#define PCI_DEVICE_ID_AH_IOV CHIP_NUM_AH_IOV
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#endif
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enum qede_pci_private {
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QEDE_PRIVATE_PF,
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QEDE_PRIVATE_VF
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};
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static const struct pci_device_id qede_pci_tbl[] = {
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{PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_40), QEDE_PRIVATE_PF},
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{PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_10), QEDE_PRIVATE_PF},
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{PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_MF), QEDE_PRIVATE_PF},
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{PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_100), QEDE_PRIVATE_PF},
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{PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_50), QEDE_PRIVATE_PF},
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{PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_25), QEDE_PRIVATE_PF},
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#ifdef CONFIG_QED_SRIOV
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{PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_IOV), QEDE_PRIVATE_VF},
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#endif
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{PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_AH), QEDE_PRIVATE_PF},
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#ifdef CONFIG_QED_SRIOV
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{PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_AH_IOV), QEDE_PRIVATE_VF},
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#endif
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{ 0 }
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};
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MODULE_DEVICE_TABLE(pci, qede_pci_tbl);
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static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id);
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#define TX_TIMEOUT (5 * HZ)
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/* Utilize last protocol index for XDP */
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#define XDP_PI 11
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static void qede_remove(struct pci_dev *pdev);
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static void qede_shutdown(struct pci_dev *pdev);
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static void qede_link_update(void *dev, struct qed_link_output *link);
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/* The qede lock is used to protect driver state change and driver flows that
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* are not reentrant.
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*/
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void __qede_lock(struct qede_dev *edev)
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{
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mutex_lock(&edev->qede_lock);
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}
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void __qede_unlock(struct qede_dev *edev)
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{
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mutex_unlock(&edev->qede_lock);
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}
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#ifdef CONFIG_QED_SRIOV
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static int qede_set_vf_vlan(struct net_device *ndev, int vf, u16 vlan, u8 qos,
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__be16 vlan_proto)
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{
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struct qede_dev *edev = netdev_priv(ndev);
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if (vlan > 4095) {
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DP_NOTICE(edev, "Illegal vlan value %d\n", vlan);
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return -EINVAL;
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}
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if (vlan_proto != htons(ETH_P_8021Q))
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return -EPROTONOSUPPORT;
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DP_VERBOSE(edev, QED_MSG_IOV, "Setting Vlan 0x%04x to VF [%d]\n",
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vlan, vf);
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return edev->ops->iov->set_vlan(edev->cdev, vlan, vf);
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}
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static int qede_set_vf_mac(struct net_device *ndev, int vfidx, u8 *mac)
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{
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struct qede_dev *edev = netdev_priv(ndev);
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DP_VERBOSE(edev, QED_MSG_IOV,
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"Setting MAC %02x:%02x:%02x:%02x:%02x:%02x to VF [%d]\n",
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mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], vfidx);
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if (!is_valid_ether_addr(mac)) {
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DP_VERBOSE(edev, QED_MSG_IOV, "MAC address isn't valid\n");
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return -EINVAL;
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}
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return edev->ops->iov->set_mac(edev->cdev, mac, vfidx);
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}
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static int qede_sriov_configure(struct pci_dev *pdev, int num_vfs_param)
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{
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struct qede_dev *edev = netdev_priv(pci_get_drvdata(pdev));
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struct qed_dev_info *qed_info = &edev->dev_info.common;
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struct qed_update_vport_params *vport_params;
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int rc;
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vport_params = vzalloc(sizeof(*vport_params));
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if (!vport_params)
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return -ENOMEM;
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DP_VERBOSE(edev, QED_MSG_IOV, "Requested %d VFs\n", num_vfs_param);
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rc = edev->ops->iov->configure(edev->cdev, num_vfs_param);
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/* Enable/Disable Tx switching for PF */
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if ((rc == num_vfs_param) && netif_running(edev->ndev) &&
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qed_info->mf_mode != QED_MF_NPAR && qed_info->tx_switching) {
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vport_params->vport_id = 0;
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vport_params->update_tx_switching_flg = 1;
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vport_params->tx_switching_flg = num_vfs_param ? 1 : 0;
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edev->ops->vport_update(edev->cdev, vport_params);
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}
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vfree(vport_params);
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return rc;
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}
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#endif
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static struct pci_driver qede_pci_driver = {
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.name = "qede",
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.id_table = qede_pci_tbl,
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.probe = qede_probe,
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.remove = qede_remove,
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.shutdown = qede_shutdown,
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#ifdef CONFIG_QED_SRIOV
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.sriov_configure = qede_sriov_configure,
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#endif
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};
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static struct qed_eth_cb_ops qede_ll_ops = {
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{
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#ifdef CONFIG_RFS_ACCEL
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.arfs_filter_op = qede_arfs_filter_op,
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#endif
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.link_update = qede_link_update,
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},
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.force_mac = qede_force_mac,
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.ports_update = qede_udp_ports_update,
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};
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static int qede_netdev_event(struct notifier_block *this, unsigned long event,
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void *ptr)
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{
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struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
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struct ethtool_drvinfo drvinfo;
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struct qede_dev *edev;
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if (event != NETDEV_CHANGENAME && event != NETDEV_CHANGEADDR)
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goto done;
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/* Check whether this is a qede device */
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if (!ndev || !ndev->ethtool_ops || !ndev->ethtool_ops->get_drvinfo)
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goto done;
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memset(&drvinfo, 0, sizeof(drvinfo));
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ndev->ethtool_ops->get_drvinfo(ndev, &drvinfo);
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if (strcmp(drvinfo.driver, "qede"))
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goto done;
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edev = netdev_priv(ndev);
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switch (event) {
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case NETDEV_CHANGENAME:
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/* Notify qed of the name change */
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if (!edev->ops || !edev->ops->common)
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goto done;
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edev->ops->common->set_name(edev->cdev, edev->ndev->name);
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break;
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case NETDEV_CHANGEADDR:
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edev = netdev_priv(ndev);
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qede_rdma_event_changeaddr(edev);
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break;
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}
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done:
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return NOTIFY_DONE;
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}
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static struct notifier_block qede_netdev_notifier = {
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.notifier_call = qede_netdev_event,
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};
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static
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int __init qede_init(void)
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{
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int ret;
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pr_info("qede_init: %s\n", version);
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qed_ops = qed_get_eth_ops();
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if (!qed_ops) {
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pr_notice("Failed to get qed ethtool operations\n");
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return -EINVAL;
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}
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/* Must register notifier before pci ops, since we might miss
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* interface rename after pci probe and netdev registeration.
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*/
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ret = register_netdevice_notifier(&qede_netdev_notifier);
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if (ret) {
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pr_notice("Failed to register netdevice_notifier\n");
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qed_put_eth_ops();
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return -EINVAL;
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}
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ret = pci_register_driver(&qede_pci_driver);
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if (ret) {
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pr_notice("Failed to register driver\n");
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unregister_netdevice_notifier(&qede_netdev_notifier);
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qed_put_eth_ops();
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return -EINVAL;
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}
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return 0;
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}
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static void __exit qede_cleanup(void)
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{
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if (debug & QED_LOG_INFO_MASK)
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pr_info("qede_cleanup called\n");
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unregister_netdevice_notifier(&qede_netdev_notifier);
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pci_unregister_driver(&qede_pci_driver);
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qed_put_eth_ops();
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}
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module_init(qede_init);
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module_exit(qede_cleanup);
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static int qede_open(struct net_device *ndev);
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static int qede_close(struct net_device *ndev);
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void qede_fill_by_demand_stats(struct qede_dev *edev)
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{
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struct qede_stats_common *p_common = &edev->stats.common;
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struct qed_eth_stats stats;
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edev->ops->get_vport_stats(edev->cdev, &stats);
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p_common->no_buff_discards = stats.common.no_buff_discards;
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p_common->packet_too_big_discard = stats.common.packet_too_big_discard;
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p_common->ttl0_discard = stats.common.ttl0_discard;
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p_common->rx_ucast_bytes = stats.common.rx_ucast_bytes;
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p_common->rx_mcast_bytes = stats.common.rx_mcast_bytes;
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p_common->rx_bcast_bytes = stats.common.rx_bcast_bytes;
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p_common->rx_ucast_pkts = stats.common.rx_ucast_pkts;
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p_common->rx_mcast_pkts = stats.common.rx_mcast_pkts;
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p_common->rx_bcast_pkts = stats.common.rx_bcast_pkts;
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p_common->mftag_filter_discards = stats.common.mftag_filter_discards;
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p_common->mac_filter_discards = stats.common.mac_filter_discards;
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p_common->tx_ucast_bytes = stats.common.tx_ucast_bytes;
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p_common->tx_mcast_bytes = stats.common.tx_mcast_bytes;
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p_common->tx_bcast_bytes = stats.common.tx_bcast_bytes;
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p_common->tx_ucast_pkts = stats.common.tx_ucast_pkts;
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p_common->tx_mcast_pkts = stats.common.tx_mcast_pkts;
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p_common->tx_bcast_pkts = stats.common.tx_bcast_pkts;
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p_common->tx_err_drop_pkts = stats.common.tx_err_drop_pkts;
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p_common->coalesced_pkts = stats.common.tpa_coalesced_pkts;
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p_common->coalesced_events = stats.common.tpa_coalesced_events;
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p_common->coalesced_aborts_num = stats.common.tpa_aborts_num;
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p_common->non_coalesced_pkts = stats.common.tpa_not_coalesced_pkts;
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p_common->coalesced_bytes = stats.common.tpa_coalesced_bytes;
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|
|
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p_common->rx_64_byte_packets = stats.common.rx_64_byte_packets;
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p_common->rx_65_to_127_byte_packets =
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stats.common.rx_65_to_127_byte_packets;
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p_common->rx_128_to_255_byte_packets =
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stats.common.rx_128_to_255_byte_packets;
|
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p_common->rx_256_to_511_byte_packets =
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stats.common.rx_256_to_511_byte_packets;
|
|
p_common->rx_512_to_1023_byte_packets =
|
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stats.common.rx_512_to_1023_byte_packets;
|
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p_common->rx_1024_to_1518_byte_packets =
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stats.common.rx_1024_to_1518_byte_packets;
|
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p_common->rx_crc_errors = stats.common.rx_crc_errors;
|
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p_common->rx_mac_crtl_frames = stats.common.rx_mac_crtl_frames;
|
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p_common->rx_pause_frames = stats.common.rx_pause_frames;
|
|
p_common->rx_pfc_frames = stats.common.rx_pfc_frames;
|
|
p_common->rx_align_errors = stats.common.rx_align_errors;
|
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p_common->rx_carrier_errors = stats.common.rx_carrier_errors;
|
|
p_common->rx_oversize_packets = stats.common.rx_oversize_packets;
|
|
p_common->rx_jabbers = stats.common.rx_jabbers;
|
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p_common->rx_undersize_packets = stats.common.rx_undersize_packets;
|
|
p_common->rx_fragments = stats.common.rx_fragments;
|
|
p_common->tx_64_byte_packets = stats.common.tx_64_byte_packets;
|
|
p_common->tx_65_to_127_byte_packets =
|
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stats.common.tx_65_to_127_byte_packets;
|
|
p_common->tx_128_to_255_byte_packets =
|
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stats.common.tx_128_to_255_byte_packets;
|
|
p_common->tx_256_to_511_byte_packets =
|
|
stats.common.tx_256_to_511_byte_packets;
|
|
p_common->tx_512_to_1023_byte_packets =
|
|
stats.common.tx_512_to_1023_byte_packets;
|
|
p_common->tx_1024_to_1518_byte_packets =
|
|
stats.common.tx_1024_to_1518_byte_packets;
|
|
p_common->tx_pause_frames = stats.common.tx_pause_frames;
|
|
p_common->tx_pfc_frames = stats.common.tx_pfc_frames;
|
|
p_common->brb_truncates = stats.common.brb_truncates;
|
|
p_common->brb_discards = stats.common.brb_discards;
|
|
p_common->tx_mac_ctrl_frames = stats.common.tx_mac_ctrl_frames;
|
|
|
|
if (QEDE_IS_BB(edev)) {
|
|
struct qede_stats_bb *p_bb = &edev->stats.bb;
|
|
|
|
p_bb->rx_1519_to_1522_byte_packets =
|
|
stats.bb.rx_1519_to_1522_byte_packets;
|
|
p_bb->rx_1519_to_2047_byte_packets =
|
|
stats.bb.rx_1519_to_2047_byte_packets;
|
|
p_bb->rx_2048_to_4095_byte_packets =
|
|
stats.bb.rx_2048_to_4095_byte_packets;
|
|
p_bb->rx_4096_to_9216_byte_packets =
|
|
stats.bb.rx_4096_to_9216_byte_packets;
|
|
p_bb->rx_9217_to_16383_byte_packets =
|
|
stats.bb.rx_9217_to_16383_byte_packets;
|
|
p_bb->tx_1519_to_2047_byte_packets =
|
|
stats.bb.tx_1519_to_2047_byte_packets;
|
|
p_bb->tx_2048_to_4095_byte_packets =
|
|
stats.bb.tx_2048_to_4095_byte_packets;
|
|
p_bb->tx_4096_to_9216_byte_packets =
|
|
stats.bb.tx_4096_to_9216_byte_packets;
|
|
p_bb->tx_9217_to_16383_byte_packets =
|
|
stats.bb.tx_9217_to_16383_byte_packets;
|
|
p_bb->tx_lpi_entry_count = stats.bb.tx_lpi_entry_count;
|
|
p_bb->tx_total_collisions = stats.bb.tx_total_collisions;
|
|
} else {
|
|
struct qede_stats_ah *p_ah = &edev->stats.ah;
|
|
|
|
p_ah->rx_1519_to_max_byte_packets =
|
|
stats.ah.rx_1519_to_max_byte_packets;
|
|
p_ah->tx_1519_to_max_byte_packets =
|
|
stats.ah.tx_1519_to_max_byte_packets;
|
|
}
|
|
}
|
|
|
|
static void qede_get_stats64(struct net_device *dev,
|
|
struct rtnl_link_stats64 *stats)
|
|
{
|
|
struct qede_dev *edev = netdev_priv(dev);
|
|
struct qede_stats_common *p_common;
|
|
|
|
qede_fill_by_demand_stats(edev);
|
|
p_common = &edev->stats.common;
|
|
|
|
stats->rx_packets = p_common->rx_ucast_pkts + p_common->rx_mcast_pkts +
|
|
p_common->rx_bcast_pkts;
|
|
stats->tx_packets = p_common->tx_ucast_pkts + p_common->tx_mcast_pkts +
|
|
p_common->tx_bcast_pkts;
|
|
|
|
stats->rx_bytes = p_common->rx_ucast_bytes + p_common->rx_mcast_bytes +
|
|
p_common->rx_bcast_bytes;
|
|
stats->tx_bytes = p_common->tx_ucast_bytes + p_common->tx_mcast_bytes +
|
|
p_common->tx_bcast_bytes;
|
|
|
|
stats->tx_errors = p_common->tx_err_drop_pkts;
|
|
stats->multicast = p_common->rx_mcast_pkts + p_common->rx_bcast_pkts;
|
|
|
|
stats->rx_fifo_errors = p_common->no_buff_discards;
|
|
|
|
if (QEDE_IS_BB(edev))
|
|
stats->collisions = edev->stats.bb.tx_total_collisions;
|
|
stats->rx_crc_errors = p_common->rx_crc_errors;
|
|
stats->rx_frame_errors = p_common->rx_align_errors;
|
|
}
|
|
|
|
#ifdef CONFIG_QED_SRIOV
|
|
static int qede_get_vf_config(struct net_device *dev, int vfidx,
|
|
struct ifla_vf_info *ivi)
|
|
{
|
|
struct qede_dev *edev = netdev_priv(dev);
|
|
|
|
if (!edev->ops)
|
|
return -EINVAL;
|
|
|
|
return edev->ops->iov->get_config(edev->cdev, vfidx, ivi);
|
|
}
|
|
|
|
static int qede_set_vf_rate(struct net_device *dev, int vfidx,
|
|
int min_tx_rate, int max_tx_rate)
|
|
{
|
|
struct qede_dev *edev = netdev_priv(dev);
|
|
|
|
return edev->ops->iov->set_rate(edev->cdev, vfidx, min_tx_rate,
|
|
max_tx_rate);
|
|
}
|
|
|
|
static int qede_set_vf_spoofchk(struct net_device *dev, int vfidx, bool val)
|
|
{
|
|
struct qede_dev *edev = netdev_priv(dev);
|
|
|
|
if (!edev->ops)
|
|
return -EINVAL;
|
|
|
|
return edev->ops->iov->set_spoof(edev->cdev, vfidx, val);
|
|
}
|
|
|
|
static int qede_set_vf_link_state(struct net_device *dev, int vfidx,
|
|
int link_state)
|
|
{
|
|
struct qede_dev *edev = netdev_priv(dev);
|
|
|
|
if (!edev->ops)
|
|
return -EINVAL;
|
|
|
|
return edev->ops->iov->set_link_state(edev->cdev, vfidx, link_state);
|
|
}
|
|
|
|
static int qede_set_vf_trust(struct net_device *dev, int vfidx, bool setting)
|
|
{
|
|
struct qede_dev *edev = netdev_priv(dev);
|
|
|
|
if (!edev->ops)
|
|
return -EINVAL;
|
|
|
|
return edev->ops->iov->set_trust(edev->cdev, vfidx, setting);
|
|
}
|
|
#endif
|
|
|
|
static int qede_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
|
|
{
|
|
struct qede_dev *edev = netdev_priv(dev);
|
|
|
|
if (!netif_running(dev))
|
|
return -EAGAIN;
|
|
|
|
switch (cmd) {
|
|
case SIOCSHWTSTAMP:
|
|
return qede_ptp_hw_ts(edev, ifr);
|
|
default:
|
|
DP_VERBOSE(edev, QED_MSG_DEBUG,
|
|
"default IOCTL cmd 0x%x\n", cmd);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct net_device_ops qede_netdev_ops = {
|
|
.ndo_open = qede_open,
|
|
.ndo_stop = qede_close,
|
|
.ndo_start_xmit = qede_start_xmit,
|
|
.ndo_set_rx_mode = qede_set_rx_mode,
|
|
.ndo_set_mac_address = qede_set_mac_addr,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
.ndo_change_mtu = qede_change_mtu,
|
|
.ndo_do_ioctl = qede_ioctl,
|
|
#ifdef CONFIG_QED_SRIOV
|
|
.ndo_set_vf_mac = qede_set_vf_mac,
|
|
.ndo_set_vf_vlan = qede_set_vf_vlan,
|
|
.ndo_set_vf_trust = qede_set_vf_trust,
|
|
#endif
|
|
.ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
|
|
.ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
|
|
.ndo_set_features = qede_set_features,
|
|
.ndo_get_stats64 = qede_get_stats64,
|
|
#ifdef CONFIG_QED_SRIOV
|
|
.ndo_set_vf_link_state = qede_set_vf_link_state,
|
|
.ndo_set_vf_spoofchk = qede_set_vf_spoofchk,
|
|
.ndo_get_vf_config = qede_get_vf_config,
|
|
.ndo_set_vf_rate = qede_set_vf_rate,
|
|
#endif
|
|
.ndo_udp_tunnel_add = qede_udp_tunnel_add,
|
|
.ndo_udp_tunnel_del = qede_udp_tunnel_del,
|
|
.ndo_features_check = qede_features_check,
|
|
.ndo_bpf = qede_xdp,
|
|
#ifdef CONFIG_RFS_ACCEL
|
|
.ndo_rx_flow_steer = qede_rx_flow_steer,
|
|
#endif
|
|
};
|
|
|
|
static const struct net_device_ops qede_netdev_vf_ops = {
|
|
.ndo_open = qede_open,
|
|
.ndo_stop = qede_close,
|
|
.ndo_start_xmit = qede_start_xmit,
|
|
.ndo_set_rx_mode = qede_set_rx_mode,
|
|
.ndo_set_mac_address = qede_set_mac_addr,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
.ndo_change_mtu = qede_change_mtu,
|
|
.ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
|
|
.ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
|
|
.ndo_set_features = qede_set_features,
|
|
.ndo_get_stats64 = qede_get_stats64,
|
|
.ndo_udp_tunnel_add = qede_udp_tunnel_add,
|
|
.ndo_udp_tunnel_del = qede_udp_tunnel_del,
|
|
.ndo_features_check = qede_features_check,
|
|
};
|
|
|
|
static const struct net_device_ops qede_netdev_vf_xdp_ops = {
|
|
.ndo_open = qede_open,
|
|
.ndo_stop = qede_close,
|
|
.ndo_start_xmit = qede_start_xmit,
|
|
.ndo_set_rx_mode = qede_set_rx_mode,
|
|
.ndo_set_mac_address = qede_set_mac_addr,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
.ndo_change_mtu = qede_change_mtu,
|
|
.ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
|
|
.ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
|
|
.ndo_set_features = qede_set_features,
|
|
.ndo_get_stats64 = qede_get_stats64,
|
|
.ndo_udp_tunnel_add = qede_udp_tunnel_add,
|
|
.ndo_udp_tunnel_del = qede_udp_tunnel_del,
|
|
.ndo_features_check = qede_features_check,
|
|
.ndo_bpf = qede_xdp,
|
|
};
|
|
|
|
/* -------------------------------------------------------------------------
|
|
* START OF PROBE / REMOVE
|
|
* -------------------------------------------------------------------------
|
|
*/
|
|
|
|
static struct qede_dev *qede_alloc_etherdev(struct qed_dev *cdev,
|
|
struct pci_dev *pdev,
|
|
struct qed_dev_eth_info *info,
|
|
u32 dp_module, u8 dp_level)
|
|
{
|
|
struct net_device *ndev;
|
|
struct qede_dev *edev;
|
|
|
|
ndev = alloc_etherdev_mqs(sizeof(*edev),
|
|
info->num_queues, info->num_queues);
|
|
if (!ndev) {
|
|
pr_err("etherdev allocation failed\n");
|
|
return NULL;
|
|
}
|
|
|
|
edev = netdev_priv(ndev);
|
|
edev->ndev = ndev;
|
|
edev->cdev = cdev;
|
|
edev->pdev = pdev;
|
|
edev->dp_module = dp_module;
|
|
edev->dp_level = dp_level;
|
|
edev->ops = qed_ops;
|
|
|
|
if (is_kdump_kernel()) {
|
|
edev->q_num_rx_buffers = NUM_RX_BDS_KDUMP_MIN;
|
|
edev->q_num_tx_buffers = NUM_TX_BDS_KDUMP_MIN;
|
|
} else {
|
|
edev->q_num_rx_buffers = NUM_RX_BDS_DEF;
|
|
edev->q_num_tx_buffers = NUM_TX_BDS_DEF;
|
|
}
|
|
|
|
DP_INFO(edev, "Allocated netdev with %d tx queues and %d rx queues\n",
|
|
info->num_queues, info->num_queues);
|
|
|
|
SET_NETDEV_DEV(ndev, &pdev->dev);
|
|
|
|
memset(&edev->stats, 0, sizeof(edev->stats));
|
|
memcpy(&edev->dev_info, info, sizeof(*info));
|
|
|
|
/* As ethtool doesn't have the ability to show WoL behavior as
|
|
* 'default', if device supports it declare it's enabled.
|
|
*/
|
|
if (edev->dev_info.common.wol_support)
|
|
edev->wol_enabled = true;
|
|
|
|
INIT_LIST_HEAD(&edev->vlan_list);
|
|
|
|
return edev;
|
|
}
|
|
|
|
static void qede_init_ndev(struct qede_dev *edev)
|
|
{
|
|
struct net_device *ndev = edev->ndev;
|
|
struct pci_dev *pdev = edev->pdev;
|
|
bool udp_tunnel_enable = false;
|
|
netdev_features_t hw_features;
|
|
|
|
pci_set_drvdata(pdev, ndev);
|
|
|
|
ndev->mem_start = edev->dev_info.common.pci_mem_start;
|
|
ndev->base_addr = ndev->mem_start;
|
|
ndev->mem_end = edev->dev_info.common.pci_mem_end;
|
|
ndev->irq = edev->dev_info.common.pci_irq;
|
|
|
|
ndev->watchdog_timeo = TX_TIMEOUT;
|
|
|
|
if (IS_VF(edev)) {
|
|
if (edev->dev_info.xdp_supported)
|
|
ndev->netdev_ops = &qede_netdev_vf_xdp_ops;
|
|
else
|
|
ndev->netdev_ops = &qede_netdev_vf_ops;
|
|
} else {
|
|
ndev->netdev_ops = &qede_netdev_ops;
|
|
}
|
|
|
|
qede_set_ethtool_ops(ndev);
|
|
|
|
ndev->priv_flags |= IFF_UNICAST_FLT;
|
|
|
|
/* user-changeble features */
|
|
hw_features = NETIF_F_GRO | NETIF_F_SG |
|
|
NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
|
|
NETIF_F_TSO | NETIF_F_TSO6;
|
|
|
|
if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1)
|
|
hw_features |= NETIF_F_NTUPLE;
|
|
|
|
if (edev->dev_info.common.vxlan_enable ||
|
|
edev->dev_info.common.geneve_enable)
|
|
udp_tunnel_enable = true;
|
|
|
|
if (udp_tunnel_enable || edev->dev_info.common.gre_enable) {
|
|
hw_features |= NETIF_F_TSO_ECN;
|
|
ndev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
|
|
NETIF_F_SG | NETIF_F_TSO |
|
|
NETIF_F_TSO_ECN | NETIF_F_TSO6 |
|
|
NETIF_F_RXCSUM;
|
|
}
|
|
|
|
if (udp_tunnel_enable) {
|
|
hw_features |= (NETIF_F_GSO_UDP_TUNNEL |
|
|
NETIF_F_GSO_UDP_TUNNEL_CSUM);
|
|
ndev->hw_enc_features |= (NETIF_F_GSO_UDP_TUNNEL |
|
|
NETIF_F_GSO_UDP_TUNNEL_CSUM);
|
|
}
|
|
|
|
if (edev->dev_info.common.gre_enable) {
|
|
hw_features |= (NETIF_F_GSO_GRE | NETIF_F_GSO_GRE_CSUM);
|
|
ndev->hw_enc_features |= (NETIF_F_GSO_GRE |
|
|
NETIF_F_GSO_GRE_CSUM);
|
|
}
|
|
|
|
ndev->vlan_features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM |
|
|
NETIF_F_HIGHDMA;
|
|
ndev->features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM |
|
|
NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HIGHDMA |
|
|
NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_TX;
|
|
|
|
ndev->hw_features = hw_features;
|
|
|
|
/* MTU range: 46 - 9600 */
|
|
ndev->min_mtu = ETH_ZLEN - ETH_HLEN;
|
|
ndev->max_mtu = QEDE_MAX_JUMBO_PACKET_SIZE;
|
|
|
|
/* Set network device HW mac */
|
|
ether_addr_copy(edev->ndev->dev_addr, edev->dev_info.common.hw_mac);
|
|
|
|
ndev->mtu = edev->dev_info.common.mtu;
|
|
}
|
|
|
|
/* This function converts from 32b param to two params of level and module
|
|
* Input 32b decoding:
|
|
* b31 - enable all NOTICE prints. NOTICE prints are for deviation from the
|
|
* 'happy' flow, e.g. memory allocation failed.
|
|
* b30 - enable all INFO prints. INFO prints are for major steps in the flow
|
|
* and provide important parameters.
|
|
* b29-b0 - per-module bitmap, where each bit enables VERBOSE prints of that
|
|
* module. VERBOSE prints are for tracking the specific flow in low level.
|
|
*
|
|
* Notice that the level should be that of the lowest required logs.
|
|
*/
|
|
void qede_config_debug(uint debug, u32 *p_dp_module, u8 *p_dp_level)
|
|
{
|
|
*p_dp_level = QED_LEVEL_NOTICE;
|
|
*p_dp_module = 0;
|
|
|
|
if (debug & QED_LOG_VERBOSE_MASK) {
|
|
*p_dp_level = QED_LEVEL_VERBOSE;
|
|
*p_dp_module = (debug & 0x3FFFFFFF);
|
|
} else if (debug & QED_LOG_INFO_MASK) {
|
|
*p_dp_level = QED_LEVEL_INFO;
|
|
} else if (debug & QED_LOG_NOTICE_MASK) {
|
|
*p_dp_level = QED_LEVEL_NOTICE;
|
|
}
|
|
}
|
|
|
|
static void qede_free_fp_array(struct qede_dev *edev)
|
|
{
|
|
if (edev->fp_array) {
|
|
struct qede_fastpath *fp;
|
|
int i;
|
|
|
|
for_each_queue(i) {
|
|
fp = &edev->fp_array[i];
|
|
|
|
kfree(fp->sb_info);
|
|
kfree(fp->rxq);
|
|
kfree(fp->xdp_tx);
|
|
kfree(fp->txq);
|
|
}
|
|
kfree(edev->fp_array);
|
|
}
|
|
|
|
edev->num_queues = 0;
|
|
edev->fp_num_tx = 0;
|
|
edev->fp_num_rx = 0;
|
|
}
|
|
|
|
static int qede_alloc_fp_array(struct qede_dev *edev)
|
|
{
|
|
u8 fp_combined, fp_rx = edev->fp_num_rx;
|
|
struct qede_fastpath *fp;
|
|
int i;
|
|
|
|
edev->fp_array = kcalloc(QEDE_QUEUE_CNT(edev),
|
|
sizeof(*edev->fp_array), GFP_KERNEL);
|
|
if (!edev->fp_array) {
|
|
DP_NOTICE(edev, "fp array allocation failed\n");
|
|
goto err;
|
|
}
|
|
|
|
fp_combined = QEDE_QUEUE_CNT(edev) - fp_rx - edev->fp_num_tx;
|
|
|
|
/* Allocate the FP elements for Rx queues followed by combined and then
|
|
* the Tx. This ordering should be maintained so that the respective
|
|
* queues (Rx or Tx) will be together in the fastpath array and the
|
|
* associated ids will be sequential.
|
|
*/
|
|
for_each_queue(i) {
|
|
fp = &edev->fp_array[i];
|
|
|
|
fp->sb_info = kzalloc(sizeof(*fp->sb_info), GFP_KERNEL);
|
|
if (!fp->sb_info) {
|
|
DP_NOTICE(edev, "sb info struct allocation failed\n");
|
|
goto err;
|
|
}
|
|
|
|
if (fp_rx) {
|
|
fp->type = QEDE_FASTPATH_RX;
|
|
fp_rx--;
|
|
} else if (fp_combined) {
|
|
fp->type = QEDE_FASTPATH_COMBINED;
|
|
fp_combined--;
|
|
} else {
|
|
fp->type = QEDE_FASTPATH_TX;
|
|
}
|
|
|
|
if (fp->type & QEDE_FASTPATH_TX) {
|
|
fp->txq = kzalloc(sizeof(*fp->txq), GFP_KERNEL);
|
|
if (!fp->txq)
|
|
goto err;
|
|
}
|
|
|
|
if (fp->type & QEDE_FASTPATH_RX) {
|
|
fp->rxq = kzalloc(sizeof(*fp->rxq), GFP_KERNEL);
|
|
if (!fp->rxq)
|
|
goto err;
|
|
|
|
if (edev->xdp_prog) {
|
|
fp->xdp_tx = kzalloc(sizeof(*fp->xdp_tx),
|
|
GFP_KERNEL);
|
|
if (!fp->xdp_tx)
|
|
goto err;
|
|
fp->type |= QEDE_FASTPATH_XDP;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
err:
|
|
qede_free_fp_array(edev);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static void qede_sp_task(struct work_struct *work)
|
|
{
|
|
struct qede_dev *edev = container_of(work, struct qede_dev,
|
|
sp_task.work);
|
|
|
|
__qede_lock(edev);
|
|
|
|
if (test_and_clear_bit(QEDE_SP_RX_MODE, &edev->sp_flags))
|
|
if (edev->state == QEDE_STATE_OPEN)
|
|
qede_config_rx_mode(edev->ndev);
|
|
|
|
#ifdef CONFIG_RFS_ACCEL
|
|
if (test_and_clear_bit(QEDE_SP_ARFS_CONFIG, &edev->sp_flags)) {
|
|
if (edev->state == QEDE_STATE_OPEN)
|
|
qede_process_arfs_filters(edev, false);
|
|
}
|
|
#endif
|
|
__qede_unlock(edev);
|
|
}
|
|
|
|
static void qede_update_pf_params(struct qed_dev *cdev)
|
|
{
|
|
struct qed_pf_params pf_params;
|
|
|
|
/* 64 rx + 64 tx + 64 XDP */
|
|
memset(&pf_params, 0, sizeof(struct qed_pf_params));
|
|
pf_params.eth_pf_params.num_cons = (MAX_SB_PER_PF_MIMD - 1) * 3;
|
|
|
|
/* Same for VFs - make sure they'll have sufficient connections
|
|
* to support XDP Tx queues.
|
|
*/
|
|
pf_params.eth_pf_params.num_vf_cons = 48;
|
|
|
|
pf_params.eth_pf_params.num_arfs_filters = QEDE_RFS_MAX_FLTR;
|
|
qed_ops->common->update_pf_params(cdev, &pf_params);
|
|
}
|
|
|
|
#define QEDE_FW_VER_STR_SIZE 80
|
|
|
|
static void qede_log_probe(struct qede_dev *edev)
|
|
{
|
|
struct qed_dev_info *p_dev_info = &edev->dev_info.common;
|
|
u8 buf[QEDE_FW_VER_STR_SIZE];
|
|
size_t left_size;
|
|
|
|
snprintf(buf, QEDE_FW_VER_STR_SIZE,
|
|
"Storm FW %d.%d.%d.%d, Management FW %d.%d.%d.%d",
|
|
p_dev_info->fw_major, p_dev_info->fw_minor, p_dev_info->fw_rev,
|
|
p_dev_info->fw_eng,
|
|
(p_dev_info->mfw_rev & QED_MFW_VERSION_3_MASK) >>
|
|
QED_MFW_VERSION_3_OFFSET,
|
|
(p_dev_info->mfw_rev & QED_MFW_VERSION_2_MASK) >>
|
|
QED_MFW_VERSION_2_OFFSET,
|
|
(p_dev_info->mfw_rev & QED_MFW_VERSION_1_MASK) >>
|
|
QED_MFW_VERSION_1_OFFSET,
|
|
(p_dev_info->mfw_rev & QED_MFW_VERSION_0_MASK) >>
|
|
QED_MFW_VERSION_0_OFFSET);
|
|
|
|
left_size = QEDE_FW_VER_STR_SIZE - strlen(buf);
|
|
if (p_dev_info->mbi_version && left_size)
|
|
snprintf(buf + strlen(buf), left_size,
|
|
" [MBI %d.%d.%d]",
|
|
(p_dev_info->mbi_version & QED_MBI_VERSION_2_MASK) >>
|
|
QED_MBI_VERSION_2_OFFSET,
|
|
(p_dev_info->mbi_version & QED_MBI_VERSION_1_MASK) >>
|
|
QED_MBI_VERSION_1_OFFSET,
|
|
(p_dev_info->mbi_version & QED_MBI_VERSION_0_MASK) >>
|
|
QED_MBI_VERSION_0_OFFSET);
|
|
|
|
pr_info("qede %02x:%02x.%02x: %s [%s]\n", edev->pdev->bus->number,
|
|
PCI_SLOT(edev->pdev->devfn), PCI_FUNC(edev->pdev->devfn),
|
|
buf, edev->ndev->name);
|
|
}
|
|
|
|
enum qede_probe_mode {
|
|
QEDE_PROBE_NORMAL,
|
|
};
|
|
|
|
static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level,
|
|
bool is_vf, enum qede_probe_mode mode)
|
|
{
|
|
struct qed_probe_params probe_params;
|
|
struct qed_slowpath_params sp_params;
|
|
struct qed_dev_eth_info dev_info;
|
|
struct qede_dev *edev;
|
|
struct qed_dev *cdev;
|
|
int rc;
|
|
|
|
if (unlikely(dp_level & QED_LEVEL_INFO))
|
|
pr_notice("Starting qede probe\n");
|
|
|
|
memset(&probe_params, 0, sizeof(probe_params));
|
|
probe_params.protocol = QED_PROTOCOL_ETH;
|
|
probe_params.dp_module = dp_module;
|
|
probe_params.dp_level = dp_level;
|
|
probe_params.is_vf = is_vf;
|
|
cdev = qed_ops->common->probe(pdev, &probe_params);
|
|
if (!cdev) {
|
|
rc = -ENODEV;
|
|
goto err0;
|
|
}
|
|
|
|
qede_update_pf_params(cdev);
|
|
|
|
/* Start the Slowpath-process */
|
|
memset(&sp_params, 0, sizeof(sp_params));
|
|
sp_params.int_mode = QED_INT_MODE_MSIX;
|
|
sp_params.drv_major = QEDE_MAJOR_VERSION;
|
|
sp_params.drv_minor = QEDE_MINOR_VERSION;
|
|
sp_params.drv_rev = QEDE_REVISION_VERSION;
|
|
sp_params.drv_eng = QEDE_ENGINEERING_VERSION;
|
|
strlcpy(sp_params.name, "qede LAN", QED_DRV_VER_STR_SIZE);
|
|
rc = qed_ops->common->slowpath_start(cdev, &sp_params);
|
|
if (rc) {
|
|
pr_notice("Cannot start slowpath\n");
|
|
goto err1;
|
|
}
|
|
|
|
/* Learn information crucial for qede to progress */
|
|
rc = qed_ops->fill_dev_info(cdev, &dev_info);
|
|
if (rc)
|
|
goto err2;
|
|
|
|
edev = qede_alloc_etherdev(cdev, pdev, &dev_info, dp_module,
|
|
dp_level);
|
|
if (!edev) {
|
|
rc = -ENOMEM;
|
|
goto err2;
|
|
}
|
|
|
|
if (is_vf)
|
|
edev->flags |= QEDE_FLAG_IS_VF;
|
|
|
|
qede_init_ndev(edev);
|
|
|
|
rc = qede_rdma_dev_add(edev);
|
|
if (rc)
|
|
goto err3;
|
|
|
|
/* Prepare the lock prior to the registeration of the netdev,
|
|
* as once it's registered we might reach flows requiring it
|
|
* [it's even possible to reach a flow needing it directly
|
|
* from there, although it's unlikely].
|
|
*/
|
|
INIT_DELAYED_WORK(&edev->sp_task, qede_sp_task);
|
|
mutex_init(&edev->qede_lock);
|
|
rc = register_netdev(edev->ndev);
|
|
if (rc) {
|
|
DP_NOTICE(edev, "Cannot register net-device\n");
|
|
goto err4;
|
|
}
|
|
|
|
edev->ops->common->set_name(cdev, edev->ndev->name);
|
|
|
|
/* PTP not supported on VFs */
|
|
if (!is_vf)
|
|
qede_ptp_enable(edev, true);
|
|
|
|
edev->ops->register_ops(cdev, &qede_ll_ops, edev);
|
|
|
|
#ifdef CONFIG_DCB
|
|
if (!IS_VF(edev))
|
|
qede_set_dcbnl_ops(edev->ndev);
|
|
#endif
|
|
|
|
edev->rx_copybreak = QEDE_RX_HDR_SIZE;
|
|
|
|
qede_log_probe(edev);
|
|
return 0;
|
|
|
|
err4:
|
|
qede_rdma_dev_remove(edev);
|
|
err3:
|
|
free_netdev(edev->ndev);
|
|
err2:
|
|
qed_ops->common->slowpath_stop(cdev);
|
|
err1:
|
|
qed_ops->common->remove(cdev);
|
|
err0:
|
|
return rc;
|
|
}
|
|
|
|
static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id)
|
|
{
|
|
bool is_vf = false;
|
|
u32 dp_module = 0;
|
|
u8 dp_level = 0;
|
|
|
|
switch ((enum qede_pci_private)id->driver_data) {
|
|
case QEDE_PRIVATE_VF:
|
|
if (debug & QED_LOG_VERBOSE_MASK)
|
|
dev_err(&pdev->dev, "Probing a VF\n");
|
|
is_vf = true;
|
|
break;
|
|
default:
|
|
if (debug & QED_LOG_VERBOSE_MASK)
|
|
dev_err(&pdev->dev, "Probing a PF\n");
|
|
}
|
|
|
|
qede_config_debug(debug, &dp_module, &dp_level);
|
|
|
|
return __qede_probe(pdev, dp_module, dp_level, is_vf,
|
|
QEDE_PROBE_NORMAL);
|
|
}
|
|
|
|
enum qede_remove_mode {
|
|
QEDE_REMOVE_NORMAL,
|
|
};
|
|
|
|
static void __qede_remove(struct pci_dev *pdev, enum qede_remove_mode mode)
|
|
{
|
|
struct net_device *ndev = pci_get_drvdata(pdev);
|
|
struct qede_dev *edev;
|
|
struct qed_dev *cdev;
|
|
|
|
if (!ndev) {
|
|
dev_info(&pdev->dev, "Device has already been removed\n");
|
|
return;
|
|
}
|
|
|
|
edev = netdev_priv(ndev);
|
|
cdev = edev->cdev;
|
|
|
|
DP_INFO(edev, "Starting qede_remove\n");
|
|
|
|
unregister_netdev(ndev);
|
|
cancel_delayed_work_sync(&edev->sp_task);
|
|
|
|
qede_ptp_disable(edev);
|
|
|
|
qede_rdma_dev_remove(edev);
|
|
|
|
edev->ops->common->set_power_state(cdev, PCI_D0);
|
|
|
|
pci_set_drvdata(pdev, NULL);
|
|
|
|
/* Release edev's reference to XDP's bpf if such exist */
|
|
if (edev->xdp_prog)
|
|
bpf_prog_put(edev->xdp_prog);
|
|
|
|
/* Use global ops since we've freed edev */
|
|
qed_ops->common->slowpath_stop(cdev);
|
|
if (system_state == SYSTEM_POWER_OFF)
|
|
return;
|
|
qed_ops->common->remove(cdev);
|
|
|
|
/* Since this can happen out-of-sync with other flows,
|
|
* don't release the netdevice until after slowpath stop
|
|
* has been called to guarantee various other contexts
|
|
* [e.g., QED register callbacks] won't break anything when
|
|
* accessing the netdevice.
|
|
*/
|
|
free_netdev(ndev);
|
|
|
|
dev_info(&pdev->dev, "Ending qede_remove successfully\n");
|
|
}
|
|
|
|
static void qede_remove(struct pci_dev *pdev)
|
|
{
|
|
__qede_remove(pdev, QEDE_REMOVE_NORMAL);
|
|
}
|
|
|
|
static void qede_shutdown(struct pci_dev *pdev)
|
|
{
|
|
__qede_remove(pdev, QEDE_REMOVE_NORMAL);
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------
|
|
* START OF LOAD / UNLOAD
|
|
* -------------------------------------------------------------------------
|
|
*/
|
|
|
|
static int qede_set_num_queues(struct qede_dev *edev)
|
|
{
|
|
int rc;
|
|
u16 rss_num;
|
|
|
|
/* Setup queues according to possible resources*/
|
|
if (edev->req_queues)
|
|
rss_num = edev->req_queues;
|
|
else
|
|
rss_num = netif_get_num_default_rss_queues() *
|
|
edev->dev_info.common.num_hwfns;
|
|
|
|
rss_num = min_t(u16, QEDE_MAX_RSS_CNT(edev), rss_num);
|
|
|
|
rc = edev->ops->common->set_fp_int(edev->cdev, rss_num);
|
|
if (rc > 0) {
|
|
/* Managed to request interrupts for our queues */
|
|
edev->num_queues = rc;
|
|
DP_INFO(edev, "Managed %d [of %d] RSS queues\n",
|
|
QEDE_QUEUE_CNT(edev), rss_num);
|
|
rc = 0;
|
|
}
|
|
|
|
edev->fp_num_tx = edev->req_num_tx;
|
|
edev->fp_num_rx = edev->req_num_rx;
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void qede_free_mem_sb(struct qede_dev *edev, struct qed_sb_info *sb_info,
|
|
u16 sb_id)
|
|
{
|
|
if (sb_info->sb_virt) {
|
|
edev->ops->common->sb_release(edev->cdev, sb_info, sb_id);
|
|
dma_free_coherent(&edev->pdev->dev, sizeof(*sb_info->sb_virt),
|
|
(void *)sb_info->sb_virt, sb_info->sb_phys);
|
|
memset(sb_info, 0, sizeof(*sb_info));
|
|
}
|
|
}
|
|
|
|
/* This function allocates fast-path status block memory */
|
|
static int qede_alloc_mem_sb(struct qede_dev *edev,
|
|
struct qed_sb_info *sb_info, u16 sb_id)
|
|
{
|
|
struct status_block *sb_virt;
|
|
dma_addr_t sb_phys;
|
|
int rc;
|
|
|
|
sb_virt = dma_alloc_coherent(&edev->pdev->dev,
|
|
sizeof(*sb_virt), &sb_phys, GFP_KERNEL);
|
|
if (!sb_virt) {
|
|
DP_ERR(edev, "Status block allocation failed\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
rc = edev->ops->common->sb_init(edev->cdev, sb_info,
|
|
sb_virt, sb_phys, sb_id,
|
|
QED_SB_TYPE_L2_QUEUE);
|
|
if (rc) {
|
|
DP_ERR(edev, "Status block initialization failed\n");
|
|
dma_free_coherent(&edev->pdev->dev, sizeof(*sb_virt),
|
|
sb_virt, sb_phys);
|
|
return rc;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void qede_free_rx_buffers(struct qede_dev *edev,
|
|
struct qede_rx_queue *rxq)
|
|
{
|
|
u16 i;
|
|
|
|
for (i = rxq->sw_rx_cons; i != rxq->sw_rx_prod; i++) {
|
|
struct sw_rx_data *rx_buf;
|
|
struct page *data;
|
|
|
|
rx_buf = &rxq->sw_rx_ring[i & NUM_RX_BDS_MAX];
|
|
data = rx_buf->data;
|
|
|
|
dma_unmap_page(&edev->pdev->dev,
|
|
rx_buf->mapping, PAGE_SIZE, rxq->data_direction);
|
|
|
|
rx_buf->data = NULL;
|
|
__free_page(data);
|
|
}
|
|
}
|
|
|
|
static void qede_free_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq)
|
|
{
|
|
int i;
|
|
|
|
if (edev->gro_disable)
|
|
return;
|
|
|
|
for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) {
|
|
struct qede_agg_info *tpa_info = &rxq->tpa_info[i];
|
|
struct sw_rx_data *replace_buf = &tpa_info->buffer;
|
|
|
|
if (replace_buf->data) {
|
|
dma_unmap_page(&edev->pdev->dev,
|
|
replace_buf->mapping,
|
|
PAGE_SIZE, DMA_FROM_DEVICE);
|
|
__free_page(replace_buf->data);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void qede_free_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq)
|
|
{
|
|
qede_free_sge_mem(edev, rxq);
|
|
|
|
/* Free rx buffers */
|
|
qede_free_rx_buffers(edev, rxq);
|
|
|
|
/* Free the parallel SW ring */
|
|
kfree(rxq->sw_rx_ring);
|
|
|
|
/* Free the real RQ ring used by FW */
|
|
edev->ops->common->chain_free(edev->cdev, &rxq->rx_bd_ring);
|
|
edev->ops->common->chain_free(edev->cdev, &rxq->rx_comp_ring);
|
|
}
|
|
|
|
static int qede_alloc_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq)
|
|
{
|
|
dma_addr_t mapping;
|
|
int i;
|
|
|
|
/* Don't perform FW aggregations in case of XDP */
|
|
if (edev->xdp_prog)
|
|
edev->gro_disable = 1;
|
|
|
|
if (edev->gro_disable)
|
|
return 0;
|
|
|
|
if (edev->ndev->mtu > PAGE_SIZE) {
|
|
edev->gro_disable = 1;
|
|
return 0;
|
|
}
|
|
|
|
for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) {
|
|
struct qede_agg_info *tpa_info = &rxq->tpa_info[i];
|
|
struct sw_rx_data *replace_buf = &tpa_info->buffer;
|
|
|
|
replace_buf->data = alloc_pages(GFP_ATOMIC, 0);
|
|
if (unlikely(!replace_buf->data)) {
|
|
DP_NOTICE(edev,
|
|
"Failed to allocate TPA skb pool [replacement buffer]\n");
|
|
goto err;
|
|
}
|
|
|
|
mapping = dma_map_page(&edev->pdev->dev, replace_buf->data, 0,
|
|
PAGE_SIZE, DMA_FROM_DEVICE);
|
|
if (unlikely(dma_mapping_error(&edev->pdev->dev, mapping))) {
|
|
DP_NOTICE(edev,
|
|
"Failed to map TPA replacement buffer\n");
|
|
goto err;
|
|
}
|
|
|
|
replace_buf->mapping = mapping;
|
|
tpa_info->buffer.page_offset = 0;
|
|
tpa_info->buffer_mapping = mapping;
|
|
tpa_info->state = QEDE_AGG_STATE_NONE;
|
|
}
|
|
|
|
return 0;
|
|
err:
|
|
qede_free_sge_mem(edev, rxq);
|
|
edev->gro_disable = 1;
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* This function allocates all memory needed per Rx queue */
|
|
static int qede_alloc_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq)
|
|
{
|
|
int i, rc, size;
|
|
|
|
rxq->num_rx_buffers = edev->q_num_rx_buffers;
|
|
|
|
rxq->rx_buf_size = NET_IP_ALIGN + ETH_OVERHEAD + edev->ndev->mtu;
|
|
rxq->rx_headroom = edev->xdp_prog ? XDP_PACKET_HEADROOM : 0;
|
|
|
|
/* Make sure that the headroom and payload fit in a single page */
|
|
if (rxq->rx_buf_size + rxq->rx_headroom > PAGE_SIZE)
|
|
rxq->rx_buf_size = PAGE_SIZE - rxq->rx_headroom;
|
|
|
|
/* Segment size to spilt a page in multiple equal parts,
|
|
* unless XDP is used in which case we'd use the entire page.
|
|
*/
|
|
if (!edev->xdp_prog)
|
|
rxq->rx_buf_seg_size = roundup_pow_of_two(rxq->rx_buf_size);
|
|
else
|
|
rxq->rx_buf_seg_size = PAGE_SIZE;
|
|
|
|
/* Allocate the parallel driver ring for Rx buffers */
|
|
size = sizeof(*rxq->sw_rx_ring) * RX_RING_SIZE;
|
|
rxq->sw_rx_ring = kzalloc(size, GFP_KERNEL);
|
|
if (!rxq->sw_rx_ring) {
|
|
DP_ERR(edev, "Rx buffers ring allocation failed\n");
|
|
rc = -ENOMEM;
|
|
goto err;
|
|
}
|
|
|
|
/* Allocate FW Rx ring */
|
|
rc = edev->ops->common->chain_alloc(edev->cdev,
|
|
QED_CHAIN_USE_TO_CONSUME_PRODUCE,
|
|
QED_CHAIN_MODE_NEXT_PTR,
|
|
QED_CHAIN_CNT_TYPE_U16,
|
|
RX_RING_SIZE,
|
|
sizeof(struct eth_rx_bd),
|
|
&rxq->rx_bd_ring, NULL);
|
|
if (rc)
|
|
goto err;
|
|
|
|
/* Allocate FW completion ring */
|
|
rc = edev->ops->common->chain_alloc(edev->cdev,
|
|
QED_CHAIN_USE_TO_CONSUME,
|
|
QED_CHAIN_MODE_PBL,
|
|
QED_CHAIN_CNT_TYPE_U16,
|
|
RX_RING_SIZE,
|
|
sizeof(union eth_rx_cqe),
|
|
&rxq->rx_comp_ring, NULL);
|
|
if (rc)
|
|
goto err;
|
|
|
|
/* Allocate buffers for the Rx ring */
|
|
rxq->filled_buffers = 0;
|
|
for (i = 0; i < rxq->num_rx_buffers; i++) {
|
|
rc = qede_alloc_rx_buffer(rxq, false);
|
|
if (rc) {
|
|
DP_ERR(edev,
|
|
"Rx buffers allocation failed at index %d\n", i);
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
rc = qede_alloc_sge_mem(edev, rxq);
|
|
err:
|
|
return rc;
|
|
}
|
|
|
|
static void qede_free_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq)
|
|
{
|
|
/* Free the parallel SW ring */
|
|
if (txq->is_xdp)
|
|
kfree(txq->sw_tx_ring.xdp);
|
|
else
|
|
kfree(txq->sw_tx_ring.skbs);
|
|
|
|
/* Free the real RQ ring used by FW */
|
|
edev->ops->common->chain_free(edev->cdev, &txq->tx_pbl);
|
|
}
|
|
|
|
/* This function allocates all memory needed per Tx queue */
|
|
static int qede_alloc_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq)
|
|
{
|
|
union eth_tx_bd_types *p_virt;
|
|
int size, rc;
|
|
|
|
txq->num_tx_buffers = edev->q_num_tx_buffers;
|
|
|
|
/* Allocate the parallel driver ring for Tx buffers */
|
|
if (txq->is_xdp) {
|
|
size = sizeof(*txq->sw_tx_ring.xdp) * txq->num_tx_buffers;
|
|
txq->sw_tx_ring.xdp = kzalloc(size, GFP_KERNEL);
|
|
if (!txq->sw_tx_ring.xdp)
|
|
goto err;
|
|
} else {
|
|
size = sizeof(*txq->sw_tx_ring.skbs) * txq->num_tx_buffers;
|
|
txq->sw_tx_ring.skbs = kzalloc(size, GFP_KERNEL);
|
|
if (!txq->sw_tx_ring.skbs)
|
|
goto err;
|
|
}
|
|
|
|
rc = edev->ops->common->chain_alloc(edev->cdev,
|
|
QED_CHAIN_USE_TO_CONSUME_PRODUCE,
|
|
QED_CHAIN_MODE_PBL,
|
|
QED_CHAIN_CNT_TYPE_U16,
|
|
txq->num_tx_buffers,
|
|
sizeof(*p_virt),
|
|
&txq->tx_pbl, NULL);
|
|
if (rc)
|
|
goto err;
|
|
|
|
return 0;
|
|
|
|
err:
|
|
qede_free_mem_txq(edev, txq);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* This function frees all memory of a single fp */
|
|
static void qede_free_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp)
|
|
{
|
|
qede_free_mem_sb(edev, fp->sb_info, fp->id);
|
|
|
|
if (fp->type & QEDE_FASTPATH_RX)
|
|
qede_free_mem_rxq(edev, fp->rxq);
|
|
|
|
if (fp->type & QEDE_FASTPATH_XDP)
|
|
qede_free_mem_txq(edev, fp->xdp_tx);
|
|
|
|
if (fp->type & QEDE_FASTPATH_TX)
|
|
qede_free_mem_txq(edev, fp->txq);
|
|
}
|
|
|
|
/* This function allocates all memory needed for a single fp (i.e. an entity
|
|
* which contains status block, one rx queue and/or multiple per-TC tx queues.
|
|
*/
|
|
static int qede_alloc_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp)
|
|
{
|
|
int rc = 0;
|
|
|
|
rc = qede_alloc_mem_sb(edev, fp->sb_info, fp->id);
|
|
if (rc)
|
|
goto out;
|
|
|
|
if (fp->type & QEDE_FASTPATH_RX) {
|
|
rc = qede_alloc_mem_rxq(edev, fp->rxq);
|
|
if (rc)
|
|
goto out;
|
|
}
|
|
|
|
if (fp->type & QEDE_FASTPATH_XDP) {
|
|
rc = qede_alloc_mem_txq(edev, fp->xdp_tx);
|
|
if (rc)
|
|
goto out;
|
|
}
|
|
|
|
if (fp->type & QEDE_FASTPATH_TX) {
|
|
rc = qede_alloc_mem_txq(edev, fp->txq);
|
|
if (rc)
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
return rc;
|
|
}
|
|
|
|
static void qede_free_mem_load(struct qede_dev *edev)
|
|
{
|
|
int i;
|
|
|
|
for_each_queue(i) {
|
|
struct qede_fastpath *fp = &edev->fp_array[i];
|
|
|
|
qede_free_mem_fp(edev, fp);
|
|
}
|
|
}
|
|
|
|
/* This function allocates all qede memory at NIC load. */
|
|
static int qede_alloc_mem_load(struct qede_dev *edev)
|
|
{
|
|
int rc = 0, queue_id;
|
|
|
|
for (queue_id = 0; queue_id < QEDE_QUEUE_CNT(edev); queue_id++) {
|
|
struct qede_fastpath *fp = &edev->fp_array[queue_id];
|
|
|
|
rc = qede_alloc_mem_fp(edev, fp);
|
|
if (rc) {
|
|
DP_ERR(edev,
|
|
"Failed to allocate memory for fastpath - rss id = %d\n",
|
|
queue_id);
|
|
qede_free_mem_load(edev);
|
|
return rc;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* This function inits fp content and resets the SB, RXQ and TXQ structures */
|
|
static void qede_init_fp(struct qede_dev *edev)
|
|
{
|
|
int queue_id, rxq_index = 0, txq_index = 0;
|
|
struct qede_fastpath *fp;
|
|
|
|
for_each_queue(queue_id) {
|
|
fp = &edev->fp_array[queue_id];
|
|
|
|
fp->edev = edev;
|
|
fp->id = queue_id;
|
|
|
|
if (fp->type & QEDE_FASTPATH_XDP) {
|
|
fp->xdp_tx->index = QEDE_TXQ_IDX_TO_XDP(edev,
|
|
rxq_index);
|
|
fp->xdp_tx->is_xdp = 1;
|
|
}
|
|
|
|
if (fp->type & QEDE_FASTPATH_RX) {
|
|
fp->rxq->rxq_id = rxq_index++;
|
|
|
|
/* Determine how to map buffers for this queue */
|
|
if (fp->type & QEDE_FASTPATH_XDP)
|
|
fp->rxq->data_direction = DMA_BIDIRECTIONAL;
|
|
else
|
|
fp->rxq->data_direction = DMA_FROM_DEVICE;
|
|
fp->rxq->dev = &edev->pdev->dev;
|
|
}
|
|
|
|
if (fp->type & QEDE_FASTPATH_TX) {
|
|
fp->txq->index = txq_index++;
|
|
if (edev->dev_info.is_legacy)
|
|
fp->txq->is_legacy = 1;
|
|
fp->txq->dev = &edev->pdev->dev;
|
|
}
|
|
|
|
snprintf(fp->name, sizeof(fp->name), "%s-fp-%d",
|
|
edev->ndev->name, queue_id);
|
|
}
|
|
|
|
edev->gro_disable = !(edev->ndev->features & NETIF_F_GRO);
|
|
}
|
|
|
|
static int qede_set_real_num_queues(struct qede_dev *edev)
|
|
{
|
|
int rc = 0;
|
|
|
|
rc = netif_set_real_num_tx_queues(edev->ndev, QEDE_TSS_COUNT(edev));
|
|
if (rc) {
|
|
DP_NOTICE(edev, "Failed to set real number of Tx queues\n");
|
|
return rc;
|
|
}
|
|
|
|
rc = netif_set_real_num_rx_queues(edev->ndev, QEDE_RSS_COUNT(edev));
|
|
if (rc) {
|
|
DP_NOTICE(edev, "Failed to set real number of Rx queues\n");
|
|
return rc;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void qede_napi_disable_remove(struct qede_dev *edev)
|
|
{
|
|
int i;
|
|
|
|
for_each_queue(i) {
|
|
napi_disable(&edev->fp_array[i].napi);
|
|
|
|
netif_napi_del(&edev->fp_array[i].napi);
|
|
}
|
|
}
|
|
|
|
static void qede_napi_add_enable(struct qede_dev *edev)
|
|
{
|
|
int i;
|
|
|
|
/* Add NAPI objects */
|
|
for_each_queue(i) {
|
|
netif_napi_add(edev->ndev, &edev->fp_array[i].napi,
|
|
qede_poll, NAPI_POLL_WEIGHT);
|
|
napi_enable(&edev->fp_array[i].napi);
|
|
}
|
|
}
|
|
|
|
static void qede_sync_free_irqs(struct qede_dev *edev)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < edev->int_info.used_cnt; i++) {
|
|
if (edev->int_info.msix_cnt) {
|
|
synchronize_irq(edev->int_info.msix[i].vector);
|
|
free_irq(edev->int_info.msix[i].vector,
|
|
&edev->fp_array[i]);
|
|
} else {
|
|
edev->ops->common->simd_handler_clean(edev->cdev, i);
|
|
}
|
|
}
|
|
|
|
edev->int_info.used_cnt = 0;
|
|
}
|
|
|
|
static int qede_req_msix_irqs(struct qede_dev *edev)
|
|
{
|
|
int i, rc;
|
|
|
|
/* Sanitize number of interrupts == number of prepared RSS queues */
|
|
if (QEDE_QUEUE_CNT(edev) > edev->int_info.msix_cnt) {
|
|
DP_ERR(edev,
|
|
"Interrupt mismatch: %d RSS queues > %d MSI-x vectors\n",
|
|
QEDE_QUEUE_CNT(edev), edev->int_info.msix_cnt);
|
|
return -EINVAL;
|
|
}
|
|
|
|
for (i = 0; i < QEDE_QUEUE_CNT(edev); i++) {
|
|
#ifdef CONFIG_RFS_ACCEL
|
|
struct qede_fastpath *fp = &edev->fp_array[i];
|
|
|
|
if (edev->ndev->rx_cpu_rmap && (fp->type & QEDE_FASTPATH_RX)) {
|
|
rc = irq_cpu_rmap_add(edev->ndev->rx_cpu_rmap,
|
|
edev->int_info.msix[i].vector);
|
|
if (rc) {
|
|
DP_ERR(edev, "Failed to add CPU rmap\n");
|
|
qede_free_arfs(edev);
|
|
}
|
|
}
|
|
#endif
|
|
rc = request_irq(edev->int_info.msix[i].vector,
|
|
qede_msix_fp_int, 0, edev->fp_array[i].name,
|
|
&edev->fp_array[i]);
|
|
if (rc) {
|
|
DP_ERR(edev, "Request fp %d irq failed\n", i);
|
|
qede_sync_free_irqs(edev);
|
|
return rc;
|
|
}
|
|
DP_VERBOSE(edev, NETIF_MSG_INTR,
|
|
"Requested fp irq for %s [entry %d]. Cookie is at %p\n",
|
|
edev->fp_array[i].name, i,
|
|
&edev->fp_array[i]);
|
|
edev->int_info.used_cnt++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void qede_simd_fp_handler(void *cookie)
|
|
{
|
|
struct qede_fastpath *fp = (struct qede_fastpath *)cookie;
|
|
|
|
napi_schedule_irqoff(&fp->napi);
|
|
}
|
|
|
|
static int qede_setup_irqs(struct qede_dev *edev)
|
|
{
|
|
int i, rc = 0;
|
|
|
|
/* Learn Interrupt configuration */
|
|
rc = edev->ops->common->get_fp_int(edev->cdev, &edev->int_info);
|
|
if (rc)
|
|
return rc;
|
|
|
|
if (edev->int_info.msix_cnt) {
|
|
rc = qede_req_msix_irqs(edev);
|
|
if (rc)
|
|
return rc;
|
|
edev->ndev->irq = edev->int_info.msix[0].vector;
|
|
} else {
|
|
const struct qed_common_ops *ops;
|
|
|
|
/* qed should learn receive the RSS ids and callbacks */
|
|
ops = edev->ops->common;
|
|
for (i = 0; i < QEDE_QUEUE_CNT(edev); i++)
|
|
ops->simd_handler_config(edev->cdev,
|
|
&edev->fp_array[i], i,
|
|
qede_simd_fp_handler);
|
|
edev->int_info.used_cnt = QEDE_QUEUE_CNT(edev);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int qede_drain_txq(struct qede_dev *edev,
|
|
struct qede_tx_queue *txq, bool allow_drain)
|
|
{
|
|
int rc, cnt = 1000;
|
|
|
|
while (txq->sw_tx_cons != txq->sw_tx_prod) {
|
|
if (!cnt) {
|
|
if (allow_drain) {
|
|
DP_NOTICE(edev,
|
|
"Tx queue[%d] is stuck, requesting MCP to drain\n",
|
|
txq->index);
|
|
rc = edev->ops->common->drain(edev->cdev);
|
|
if (rc)
|
|
return rc;
|
|
return qede_drain_txq(edev, txq, false);
|
|
}
|
|
DP_NOTICE(edev,
|
|
"Timeout waiting for tx queue[%d]: PROD=%d, CONS=%d\n",
|
|
txq->index, txq->sw_tx_prod,
|
|
txq->sw_tx_cons);
|
|
return -ENODEV;
|
|
}
|
|
cnt--;
|
|
usleep_range(1000, 2000);
|
|
barrier();
|
|
}
|
|
|
|
/* FW finished processing, wait for HW to transmit all tx packets */
|
|
usleep_range(1000, 2000);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int qede_stop_txq(struct qede_dev *edev,
|
|
struct qede_tx_queue *txq, int rss_id)
|
|
{
|
|
return edev->ops->q_tx_stop(edev->cdev, rss_id, txq->handle);
|
|
}
|
|
|
|
static int qede_stop_queues(struct qede_dev *edev)
|
|
{
|
|
struct qed_update_vport_params *vport_update_params;
|
|
struct qed_dev *cdev = edev->cdev;
|
|
struct qede_fastpath *fp;
|
|
int rc, i;
|
|
|
|
/* Disable the vport */
|
|
vport_update_params = vzalloc(sizeof(*vport_update_params));
|
|
if (!vport_update_params)
|
|
return -ENOMEM;
|
|
|
|
vport_update_params->vport_id = 0;
|
|
vport_update_params->update_vport_active_flg = 1;
|
|
vport_update_params->vport_active_flg = 0;
|
|
vport_update_params->update_rss_flg = 0;
|
|
|
|
rc = edev->ops->vport_update(cdev, vport_update_params);
|
|
vfree(vport_update_params);
|
|
|
|
if (rc) {
|
|
DP_ERR(edev, "Failed to update vport\n");
|
|
return rc;
|
|
}
|
|
|
|
/* Flush Tx queues. If needed, request drain from MCP */
|
|
for_each_queue(i) {
|
|
fp = &edev->fp_array[i];
|
|
|
|
if (fp->type & QEDE_FASTPATH_TX) {
|
|
rc = qede_drain_txq(edev, fp->txq, true);
|
|
if (rc)
|
|
return rc;
|
|
}
|
|
|
|
if (fp->type & QEDE_FASTPATH_XDP) {
|
|
rc = qede_drain_txq(edev, fp->xdp_tx, true);
|
|
if (rc)
|
|
return rc;
|
|
}
|
|
}
|
|
|
|
/* Stop all Queues in reverse order */
|
|
for (i = QEDE_QUEUE_CNT(edev) - 1; i >= 0; i--) {
|
|
fp = &edev->fp_array[i];
|
|
|
|
/* Stop the Tx Queue(s) */
|
|
if (fp->type & QEDE_FASTPATH_TX) {
|
|
rc = qede_stop_txq(edev, fp->txq, i);
|
|
if (rc)
|
|
return rc;
|
|
}
|
|
|
|
/* Stop the Rx Queue */
|
|
if (fp->type & QEDE_FASTPATH_RX) {
|
|
rc = edev->ops->q_rx_stop(cdev, i, fp->rxq->handle);
|
|
if (rc) {
|
|
DP_ERR(edev, "Failed to stop RXQ #%d\n", i);
|
|
return rc;
|
|
}
|
|
}
|
|
|
|
/* Stop the XDP forwarding queue */
|
|
if (fp->type & QEDE_FASTPATH_XDP) {
|
|
rc = qede_stop_txq(edev, fp->xdp_tx, i);
|
|
if (rc)
|
|
return rc;
|
|
|
|
bpf_prog_put(fp->rxq->xdp_prog);
|
|
}
|
|
}
|
|
|
|
/* Stop the vport */
|
|
rc = edev->ops->vport_stop(cdev, 0);
|
|
if (rc)
|
|
DP_ERR(edev, "Failed to stop VPORT\n");
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int qede_start_txq(struct qede_dev *edev,
|
|
struct qede_fastpath *fp,
|
|
struct qede_tx_queue *txq, u8 rss_id, u16 sb_idx)
|
|
{
|
|
dma_addr_t phys_table = qed_chain_get_pbl_phys(&txq->tx_pbl);
|
|
u32 page_cnt = qed_chain_get_page_cnt(&txq->tx_pbl);
|
|
struct qed_queue_start_common_params params;
|
|
struct qed_txq_start_ret_params ret_params;
|
|
int rc;
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
memset(&ret_params, 0, sizeof(ret_params));
|
|
|
|
/* Let the XDP queue share the queue-zone with one of the regular txq.
|
|
* We don't really care about its coalescing.
|
|
*/
|
|
if (txq->is_xdp)
|
|
params.queue_id = QEDE_TXQ_XDP_TO_IDX(edev, txq);
|
|
else
|
|
params.queue_id = txq->index;
|
|
|
|
params.p_sb = fp->sb_info;
|
|
params.sb_idx = sb_idx;
|
|
|
|
rc = edev->ops->q_tx_start(edev->cdev, rss_id, ¶ms, phys_table,
|
|
page_cnt, &ret_params);
|
|
if (rc) {
|
|
DP_ERR(edev, "Start TXQ #%d failed %d\n", txq->index, rc);
|
|
return rc;
|
|
}
|
|
|
|
txq->doorbell_addr = ret_params.p_doorbell;
|
|
txq->handle = ret_params.p_handle;
|
|
|
|
/* Determine the FW consumer address associated */
|
|
txq->hw_cons_ptr = &fp->sb_info->sb_virt->pi_array[sb_idx];
|
|
|
|
/* Prepare the doorbell parameters */
|
|
SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_DEST, DB_DEST_XCM);
|
|
SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_CMD, DB_AGG_CMD_SET);
|
|
SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_VAL_SEL,
|
|
DQ_XCM_ETH_TX_BD_PROD_CMD);
|
|
txq->tx_db.data.agg_flags = DQ_XCM_ETH_DQ_CF_CMD;
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int qede_start_queues(struct qede_dev *edev, bool clear_stats)
|
|
{
|
|
int vlan_removal_en = 1;
|
|
struct qed_dev *cdev = edev->cdev;
|
|
struct qed_dev_info *qed_info = &edev->dev_info.common;
|
|
struct qed_update_vport_params *vport_update_params;
|
|
struct qed_queue_start_common_params q_params;
|
|
struct qed_start_vport_params start = {0};
|
|
int rc, i;
|
|
|
|
if (!edev->num_queues) {
|
|
DP_ERR(edev,
|
|
"Cannot update V-VPORT as active as there are no Rx queues\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
vport_update_params = vzalloc(sizeof(*vport_update_params));
|
|
if (!vport_update_params)
|
|
return -ENOMEM;
|
|
|
|
start.handle_ptp_pkts = !!(edev->ptp);
|
|
start.gro_enable = !edev->gro_disable;
|
|
start.mtu = edev->ndev->mtu;
|
|
start.vport_id = 0;
|
|
start.drop_ttl0 = true;
|
|
start.remove_inner_vlan = vlan_removal_en;
|
|
start.clear_stats = clear_stats;
|
|
|
|
rc = edev->ops->vport_start(cdev, &start);
|
|
|
|
if (rc) {
|
|
DP_ERR(edev, "Start V-PORT failed %d\n", rc);
|
|
goto out;
|
|
}
|
|
|
|
DP_VERBOSE(edev, NETIF_MSG_IFUP,
|
|
"Start vport ramrod passed, vport_id = %d, MTU = %d, vlan_removal_en = %d\n",
|
|
start.vport_id, edev->ndev->mtu + 0xe, vlan_removal_en);
|
|
|
|
for_each_queue(i) {
|
|
struct qede_fastpath *fp = &edev->fp_array[i];
|
|
dma_addr_t p_phys_table;
|
|
u32 page_cnt;
|
|
|
|
if (fp->type & QEDE_FASTPATH_RX) {
|
|
struct qed_rxq_start_ret_params ret_params;
|
|
struct qede_rx_queue *rxq = fp->rxq;
|
|
__le16 *val;
|
|
|
|
memset(&ret_params, 0, sizeof(ret_params));
|
|
memset(&q_params, 0, sizeof(q_params));
|
|
q_params.queue_id = rxq->rxq_id;
|
|
q_params.vport_id = 0;
|
|
q_params.p_sb = fp->sb_info;
|
|
q_params.sb_idx = RX_PI;
|
|
|
|
p_phys_table =
|
|
qed_chain_get_pbl_phys(&rxq->rx_comp_ring);
|
|
page_cnt = qed_chain_get_page_cnt(&rxq->rx_comp_ring);
|
|
|
|
rc = edev->ops->q_rx_start(cdev, i, &q_params,
|
|
rxq->rx_buf_size,
|
|
rxq->rx_bd_ring.p_phys_addr,
|
|
p_phys_table,
|
|
page_cnt, &ret_params);
|
|
if (rc) {
|
|
DP_ERR(edev, "Start RXQ #%d failed %d\n", i,
|
|
rc);
|
|
goto out;
|
|
}
|
|
|
|
/* Use the return parameters */
|
|
rxq->hw_rxq_prod_addr = ret_params.p_prod;
|
|
rxq->handle = ret_params.p_handle;
|
|
|
|
val = &fp->sb_info->sb_virt->pi_array[RX_PI];
|
|
rxq->hw_cons_ptr = val;
|
|
|
|
qede_update_rx_prod(edev, rxq);
|
|
}
|
|
|
|
if (fp->type & QEDE_FASTPATH_XDP) {
|
|
rc = qede_start_txq(edev, fp, fp->xdp_tx, i, XDP_PI);
|
|
if (rc)
|
|
goto out;
|
|
|
|
fp->rxq->xdp_prog = bpf_prog_add(edev->xdp_prog, 1);
|
|
if (IS_ERR(fp->rxq->xdp_prog)) {
|
|
rc = PTR_ERR(fp->rxq->xdp_prog);
|
|
fp->rxq->xdp_prog = NULL;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if (fp->type & QEDE_FASTPATH_TX) {
|
|
rc = qede_start_txq(edev, fp, fp->txq, i, TX_PI(0));
|
|
if (rc)
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
/* Prepare and send the vport enable */
|
|
vport_update_params->vport_id = start.vport_id;
|
|
vport_update_params->update_vport_active_flg = 1;
|
|
vport_update_params->vport_active_flg = 1;
|
|
|
|
if ((qed_info->mf_mode == QED_MF_NPAR || pci_num_vf(edev->pdev)) &&
|
|
qed_info->tx_switching) {
|
|
vport_update_params->update_tx_switching_flg = 1;
|
|
vport_update_params->tx_switching_flg = 1;
|
|
}
|
|
|
|
qede_fill_rss_params(edev, &vport_update_params->rss_params,
|
|
&vport_update_params->update_rss_flg);
|
|
|
|
rc = edev->ops->vport_update(cdev, vport_update_params);
|
|
if (rc)
|
|
DP_ERR(edev, "Update V-PORT failed %d\n", rc);
|
|
|
|
out:
|
|
vfree(vport_update_params);
|
|
return rc;
|
|
}
|
|
|
|
enum qede_unload_mode {
|
|
QEDE_UNLOAD_NORMAL,
|
|
};
|
|
|
|
static void qede_unload(struct qede_dev *edev, enum qede_unload_mode mode,
|
|
bool is_locked)
|
|
{
|
|
struct qed_link_params link_params;
|
|
int rc;
|
|
|
|
DP_INFO(edev, "Starting qede unload\n");
|
|
|
|
if (!is_locked)
|
|
__qede_lock(edev);
|
|
|
|
edev->state = QEDE_STATE_CLOSED;
|
|
|
|
qede_rdma_dev_event_close(edev);
|
|
|
|
/* Close OS Tx */
|
|
netif_tx_disable(edev->ndev);
|
|
netif_carrier_off(edev->ndev);
|
|
|
|
/* Reset the link */
|
|
memset(&link_params, 0, sizeof(link_params));
|
|
link_params.link_up = false;
|
|
edev->ops->common->set_link(edev->cdev, &link_params);
|
|
rc = qede_stop_queues(edev);
|
|
if (rc) {
|
|
qede_sync_free_irqs(edev);
|
|
goto out;
|
|
}
|
|
|
|
DP_INFO(edev, "Stopped Queues\n");
|
|
|
|
qede_vlan_mark_nonconfigured(edev);
|
|
edev->ops->fastpath_stop(edev->cdev);
|
|
|
|
if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
|
|
qede_poll_for_freeing_arfs_filters(edev);
|
|
qede_free_arfs(edev);
|
|
}
|
|
|
|
/* Release the interrupts */
|
|
qede_sync_free_irqs(edev);
|
|
edev->ops->common->set_fp_int(edev->cdev, 0);
|
|
|
|
qede_napi_disable_remove(edev);
|
|
|
|
qede_free_mem_load(edev);
|
|
qede_free_fp_array(edev);
|
|
|
|
out:
|
|
if (!is_locked)
|
|
__qede_unlock(edev);
|
|
DP_INFO(edev, "Ending qede unload\n");
|
|
}
|
|
|
|
enum qede_load_mode {
|
|
QEDE_LOAD_NORMAL,
|
|
QEDE_LOAD_RELOAD,
|
|
};
|
|
|
|
static int qede_load(struct qede_dev *edev, enum qede_load_mode mode,
|
|
bool is_locked)
|
|
{
|
|
struct qed_link_params link_params;
|
|
int rc;
|
|
|
|
DP_INFO(edev, "Starting qede load\n");
|
|
|
|
if (!is_locked)
|
|
__qede_lock(edev);
|
|
|
|
rc = qede_set_num_queues(edev);
|
|
if (rc)
|
|
goto out;
|
|
|
|
rc = qede_alloc_fp_array(edev);
|
|
if (rc)
|
|
goto out;
|
|
|
|
qede_init_fp(edev);
|
|
|
|
rc = qede_alloc_mem_load(edev);
|
|
if (rc)
|
|
goto err1;
|
|
DP_INFO(edev, "Allocated %d Rx, %d Tx queues\n",
|
|
QEDE_RSS_COUNT(edev), QEDE_TSS_COUNT(edev));
|
|
|
|
rc = qede_set_real_num_queues(edev);
|
|
if (rc)
|
|
goto err2;
|
|
|
|
if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
|
|
rc = qede_alloc_arfs(edev);
|
|
if (rc)
|
|
DP_NOTICE(edev, "aRFS memory allocation failed\n");
|
|
}
|
|
|
|
qede_napi_add_enable(edev);
|
|
DP_INFO(edev, "Napi added and enabled\n");
|
|
|
|
rc = qede_setup_irqs(edev);
|
|
if (rc)
|
|
goto err3;
|
|
DP_INFO(edev, "Setup IRQs succeeded\n");
|
|
|
|
rc = qede_start_queues(edev, mode != QEDE_LOAD_RELOAD);
|
|
if (rc)
|
|
goto err4;
|
|
DP_INFO(edev, "Start VPORT, RXQ and TXQ succeeded\n");
|
|
|
|
/* Program un-configured VLANs */
|
|
qede_configure_vlan_filters(edev);
|
|
|
|
/* Ask for link-up using current configuration */
|
|
memset(&link_params, 0, sizeof(link_params));
|
|
link_params.link_up = true;
|
|
edev->ops->common->set_link(edev->cdev, &link_params);
|
|
|
|
edev->state = QEDE_STATE_OPEN;
|
|
|
|
DP_INFO(edev, "Ending successfully qede load\n");
|
|
|
|
goto out;
|
|
err4:
|
|
qede_sync_free_irqs(edev);
|
|
memset(&edev->int_info.msix_cnt, 0, sizeof(struct qed_int_info));
|
|
err3:
|
|
qede_napi_disable_remove(edev);
|
|
err2:
|
|
qede_free_mem_load(edev);
|
|
err1:
|
|
edev->ops->common->set_fp_int(edev->cdev, 0);
|
|
qede_free_fp_array(edev);
|
|
edev->num_queues = 0;
|
|
edev->fp_num_tx = 0;
|
|
edev->fp_num_rx = 0;
|
|
out:
|
|
if (!is_locked)
|
|
__qede_unlock(edev);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/* 'func' should be able to run between unload and reload assuming interface
|
|
* is actually running, or afterwards in case it's currently DOWN.
|
|
*/
|
|
void qede_reload(struct qede_dev *edev,
|
|
struct qede_reload_args *args, bool is_locked)
|
|
{
|
|
if (!is_locked)
|
|
__qede_lock(edev);
|
|
|
|
/* Since qede_lock is held, internal state wouldn't change even
|
|
* if netdev state would start transitioning. Check whether current
|
|
* internal configuration indicates device is up, then reload.
|
|
*/
|
|
if (edev->state == QEDE_STATE_OPEN) {
|
|
qede_unload(edev, QEDE_UNLOAD_NORMAL, true);
|
|
if (args)
|
|
args->func(edev, args);
|
|
qede_load(edev, QEDE_LOAD_RELOAD, true);
|
|
|
|
/* Since no one is going to do it for us, re-configure */
|
|
qede_config_rx_mode(edev->ndev);
|
|
} else if (args) {
|
|
args->func(edev, args);
|
|
}
|
|
|
|
if (!is_locked)
|
|
__qede_unlock(edev);
|
|
}
|
|
|
|
/* called with rtnl_lock */
|
|
static int qede_open(struct net_device *ndev)
|
|
{
|
|
struct qede_dev *edev = netdev_priv(ndev);
|
|
int rc;
|
|
|
|
netif_carrier_off(ndev);
|
|
|
|
edev->ops->common->set_power_state(edev->cdev, PCI_D0);
|
|
|
|
rc = qede_load(edev, QEDE_LOAD_NORMAL, false);
|
|
if (rc)
|
|
return rc;
|
|
|
|
udp_tunnel_get_rx_info(ndev);
|
|
|
|
edev->ops->common->update_drv_state(edev->cdev, true);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int qede_close(struct net_device *ndev)
|
|
{
|
|
struct qede_dev *edev = netdev_priv(ndev);
|
|
|
|
qede_unload(edev, QEDE_UNLOAD_NORMAL, false);
|
|
|
|
edev->ops->common->update_drv_state(edev->cdev, false);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void qede_link_update(void *dev, struct qed_link_output *link)
|
|
{
|
|
struct qede_dev *edev = dev;
|
|
|
|
if (!netif_running(edev->ndev)) {
|
|
DP_VERBOSE(edev, NETIF_MSG_LINK, "Interface is not running\n");
|
|
return;
|
|
}
|
|
|
|
if (link->link_up) {
|
|
if (!netif_carrier_ok(edev->ndev)) {
|
|
DP_NOTICE(edev, "Link is up\n");
|
|
netif_tx_start_all_queues(edev->ndev);
|
|
netif_carrier_on(edev->ndev);
|
|
qede_rdma_dev_event_open(edev);
|
|
}
|
|
} else {
|
|
if (netif_carrier_ok(edev->ndev)) {
|
|
DP_NOTICE(edev, "Link is down\n");
|
|
netif_tx_disable(edev->ndev);
|
|
netif_carrier_off(edev->ndev);
|
|
qede_rdma_dev_event_close(edev);
|
|
}
|
|
}
|
|
}
|
|
|