| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Yuval Mintz | 7720 | 64.48% | 48 | 45.28% |
| Sudarsana Reddy Kalluru | 1974 | 16.49% | 21 | 19.81% |
| Manish Chopra | 1129 | 9.43% | 14 | 13.21% |
| Tomer Tayar | 915 | 7.64% | 2 | 1.89% |
| Jesper Dangaard Brouer | 53 | 0.44% | 1 | 0.94% |
| Ariel Elior | 52 | 0.43% | 1 | 0.94% |
| Ram Amrani | 33 | 0.28% | 1 | 0.94% |
| Pablo Neira Ayuso | 21 | 0.18% | 3 | 2.83% |
| Michal Kalderon | 20 | 0.17% | 4 | 3.77% |
| Michael Chan | 17 | 0.14% | 1 | 0.94% |
| Moshe Shemesh | 16 | 0.13% | 1 | 0.94% |
| Alexander Duyck | 8 | 0.07% | 1 | 0.94% |
| Arnd Bergmann | 5 | 0.04% | 1 | 0.94% |
| Stephen Hemminger | 2 | 0.02% | 1 | 0.94% |
| Yue haibing | 2 | 0.02% | 1 | 0.94% |
| Jakub Kiciński | 2 | 0.02% | 1 | 0.94% |
| Rahul Verma | 1 | 0.01% | 1 | 0.94% |
| Fengguang Wu | 1 | 0.01% | 1 | 0.94% |
| Andrii Nakryiko | 1 | 0.01% | 1 | 0.94% |
| Colin Ian King | 1 | 0.01% | 1 | 0.94% |
| Total | 11973 | 106 |
/* QLogic qede NIC Driver * Copyright (c) 2015-2017 QLogic Corporation * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and /or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include <linux/module.h> #include <linux/pci.h> #include <linux/version.h> #include <linux/device.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/skbuff.h> #include <linux/errno.h> #include <linux/list.h> #include <linux/string.h> #include <linux/dma-mapping.h> #include <linux/interrupt.h> #include <asm/byteorder.h> #include <asm/param.h> #include <linux/io.h> #include <linux/netdev_features.h> #include <linux/udp.h> #include <linux/tcp.h> #include <net/udp_tunnel.h> #include <linux/ip.h> #include <net/ipv6.h> #include <net/tcp.h> #include <linux/if_ether.h> #include <linux/if_vlan.h> #include <linux/pkt_sched.h> #include <linux/ethtool.h> #include <linux/in.h> #include <linux/random.h> #include <net/ip6_checksum.h> #include <linux/bitops.h> #include <linux/vmalloc.h> #include "qede.h" #include "qede_ptp.h" static char version[] = "QLogic FastLinQ 4xxxx Ethernet Driver qede " DRV_MODULE_VERSION "\n"; MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx Ethernet Driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_MODULE_VERSION); static uint debug; module_param(debug, uint, 0); MODULE_PARM_DESC(debug, " Default debug msglevel"); static const struct qed_eth_ops *qed_ops; #define CHIP_NUM_57980S_40 0x1634 #define CHIP_NUM_57980S_10 0x1666 #define CHIP_NUM_57980S_MF 0x1636 #define CHIP_NUM_57980S_100 0x1644 #define CHIP_NUM_57980S_50 0x1654 #define CHIP_NUM_57980S_25 0x1656 #define CHIP_NUM_57980S_IOV 0x1664 #define CHIP_NUM_AH 0x8070 #define CHIP_NUM_AH_IOV 0x8090 #ifndef PCI_DEVICE_ID_NX2_57980E #define PCI_DEVICE_ID_57980S_40 CHIP_NUM_57980S_40 #define PCI_DEVICE_ID_57980S_10 CHIP_NUM_57980S_10 #define PCI_DEVICE_ID_57980S_MF CHIP_NUM_57980S_MF #define PCI_DEVICE_ID_57980S_100 CHIP_NUM_57980S_100 #define PCI_DEVICE_ID_57980S_50 CHIP_NUM_57980S_50 #define PCI_DEVICE_ID_57980S_25 CHIP_NUM_57980S_25 #define PCI_DEVICE_ID_57980S_IOV CHIP_NUM_57980S_IOV #define PCI_DEVICE_ID_AH CHIP_NUM_AH #define PCI_DEVICE_ID_AH_IOV CHIP_NUM_AH_IOV #endif enum qede_pci_private { QEDE_PRIVATE_PF, QEDE_PRIVATE_VF }; static const struct pci_device_id qede_pci_tbl[] = { {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_40), QEDE_PRIVATE_PF}, {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_10), QEDE_PRIVATE_PF}, {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_MF), QEDE_PRIVATE_PF}, {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_100), QEDE_PRIVATE_PF}, {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_50), QEDE_PRIVATE_PF}, {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_25), QEDE_PRIVATE_PF}, #ifdef CONFIG_QED_SRIOV {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_IOV), QEDE_PRIVATE_VF}, #endif {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_AH), QEDE_PRIVATE_PF}, #ifdef CONFIG_QED_SRIOV {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_AH_IOV), QEDE_PRIVATE_VF}, #endif { 0 } }; MODULE_DEVICE_TABLE(pci, qede_pci_tbl); static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id); #define TX_TIMEOUT (5 * HZ) /* Utilize last protocol index for XDP */ #define XDP_PI 11 static void qede_remove(struct pci_dev *pdev); static void qede_shutdown(struct pci_dev *pdev); static void qede_link_update(void *dev, struct qed_link_output *link); static void qede_schedule_recovery_handler(void *dev); static void qede_recovery_handler(struct qede_dev *edev); static void qede_get_eth_tlv_data(void *edev, void *data); static void qede_get_generic_tlv_data(void *edev, struct qed_generic_tlvs *data); #ifdef CONFIG_QED_SRIOV static int qede_set_vf_vlan(struct net_device *ndev, int vf, u16 vlan, u8 qos, __be16 vlan_proto) { struct qede_dev *edev = netdev_priv(ndev); if (vlan > 4095) { DP_NOTICE(edev, "Illegal vlan value %d\n", vlan); return -EINVAL; } if (vlan_proto != htons(ETH_P_8021Q)) return -EPROTONOSUPPORT; DP_VERBOSE(edev, QED_MSG_IOV, "Setting Vlan 0x%04x to VF [%d]\n", vlan, vf); return edev->ops->iov->set_vlan(edev->cdev, vlan, vf); } static int qede_set_vf_mac(struct net_device *ndev, int vfidx, u8 *mac) { struct qede_dev *edev = netdev_priv(ndev); DP_VERBOSE(edev, QED_MSG_IOV, "Setting MAC %02x:%02x:%02x:%02x:%02x:%02x to VF [%d]\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], vfidx); if (!is_valid_ether_addr(mac)) { DP_VERBOSE(edev, QED_MSG_IOV, "MAC address isn't valid\n"); return -EINVAL; } return edev->ops->iov->set_mac(edev->cdev, mac, vfidx); } static int qede_sriov_configure(struct pci_dev *pdev, int num_vfs_param) { struct qede_dev *edev = netdev_priv(pci_get_drvdata(pdev)); struct qed_dev_info *qed_info = &edev->dev_info.common; struct qed_update_vport_params *vport_params; int rc; vport_params = vzalloc(sizeof(*vport_params)); if (!vport_params) return -ENOMEM; DP_VERBOSE(edev, QED_MSG_IOV, "Requested %d VFs\n", num_vfs_param); rc = edev->ops->iov->configure(edev->cdev, num_vfs_param); /* Enable/Disable Tx switching for PF */ if ((rc == num_vfs_param) && netif_running(edev->ndev) && !qed_info->b_inter_pf_switch && qed_info->tx_switching) { vport_params->vport_id = 0; vport_params->update_tx_switching_flg = 1; vport_params->tx_switching_flg = num_vfs_param ? 1 : 0; edev->ops->vport_update(edev->cdev, vport_params); } vfree(vport_params); return rc; } #endif static struct pci_driver qede_pci_driver = { .name = "qede", .id_table = qede_pci_tbl, .probe = qede_probe, .remove = qede_remove, .shutdown = qede_shutdown, #ifdef CONFIG_QED_SRIOV .sriov_configure = qede_sriov_configure, #endif }; static struct qed_eth_cb_ops qede_ll_ops = { { #ifdef CONFIG_RFS_ACCEL .arfs_filter_op = qede_arfs_filter_op, #endif .link_update = qede_link_update, .schedule_recovery_handler = qede_schedule_recovery_handler, .get_generic_tlv_data = qede_get_generic_tlv_data, .get_protocol_tlv_data = qede_get_eth_tlv_data, }, .force_mac = qede_force_mac, .ports_update = qede_udp_ports_update, }; static int qede_netdev_event(struct notifier_block *this, unsigned long event, void *ptr) { struct net_device *ndev = netdev_notifier_info_to_dev(ptr); struct ethtool_drvinfo drvinfo; struct qede_dev *edev; if (event != NETDEV_CHANGENAME && event != NETDEV_CHANGEADDR) goto done; /* Check whether this is a qede device */ if (!ndev || !ndev->ethtool_ops || !ndev->ethtool_ops->get_drvinfo) goto done; memset(&drvinfo, 0, sizeof(drvinfo)); ndev->ethtool_ops->get_drvinfo(ndev, &drvinfo); if (strcmp(drvinfo.driver, "qede")) goto done; edev = netdev_priv(ndev); switch (event) { case NETDEV_CHANGENAME: /* Notify qed of the name change */ if (!edev->ops || !edev->ops->common) goto done; edev->ops->common->set_name(edev->cdev, edev->ndev->name); break; case NETDEV_CHANGEADDR: edev = netdev_priv(ndev); qede_rdma_event_changeaddr(edev); break; } done: return NOTIFY_DONE; } static struct notifier_block qede_netdev_notifier = { .notifier_call = qede_netdev_event, }; static int __init qede_init(void) { int ret; pr_info("qede_init: %s\n", version); qed_ops = qed_get_eth_ops(); if (!qed_ops) { pr_notice("Failed to get qed ethtool operations\n"); return -EINVAL; } /* Must register notifier before pci ops, since we might miss * interface rename after pci probe and netdev registration. */ ret = register_netdevice_notifier(&qede_netdev_notifier); if (ret) { pr_notice("Failed to register netdevice_notifier\n"); qed_put_eth_ops(); return -EINVAL; } ret = pci_register_driver(&qede_pci_driver); if (ret) { pr_notice("Failed to register driver\n"); unregister_netdevice_notifier(&qede_netdev_notifier); qed_put_eth_ops(); return -EINVAL; } return 0; } static void __exit qede_cleanup(void) { if (debug & QED_LOG_INFO_MASK) pr_info("qede_cleanup called\n"); unregister_netdevice_notifier(&qede_netdev_notifier); pci_unregister_driver(&qede_pci_driver); qed_put_eth_ops(); } module_init(qede_init); module_exit(qede_cleanup); static int qede_open(struct net_device *ndev); static int qede_close(struct net_device *ndev); void qede_fill_by_demand_stats(struct qede_dev *edev) { struct qede_stats_common *p_common = &edev->stats.common; struct qed_eth_stats stats; edev->ops->get_vport_stats(edev->cdev, &stats); p_common->no_buff_discards = stats.common.no_buff_discards; p_common->packet_too_big_discard = stats.common.packet_too_big_discard; p_common->ttl0_discard = stats.common.ttl0_discard; p_common->rx_ucast_bytes = stats.common.rx_ucast_bytes; p_common->rx_mcast_bytes = stats.common.rx_mcast_bytes; p_common->rx_bcast_bytes = stats.common.rx_bcast_bytes; p_common->rx_ucast_pkts = stats.common.rx_ucast_pkts; p_common->rx_mcast_pkts = stats.common.rx_mcast_pkts; p_common->rx_bcast_pkts = stats.common.rx_bcast_pkts; p_common->mftag_filter_discards = stats.common.mftag_filter_discards; p_common->mac_filter_discards = stats.common.mac_filter_discards; p_common->gft_filter_drop = stats.common.gft_filter_drop; p_common->tx_ucast_bytes = stats.common.tx_ucast_bytes; p_common->tx_mcast_bytes = stats.common.tx_mcast_bytes; p_common->tx_bcast_bytes = stats.common.tx_bcast_bytes; p_common->tx_ucast_pkts = stats.common.tx_ucast_pkts; p_common->tx_mcast_pkts = stats.common.tx_mcast_pkts; p_common->tx_bcast_pkts = stats.common.tx_bcast_pkts; p_common->tx_err_drop_pkts = stats.common.tx_err_drop_pkts; p_common->coalesced_pkts = stats.common.tpa_coalesced_pkts; p_common->coalesced_events = stats.common.tpa_coalesced_events; p_common->coalesced_aborts_num = stats.common.tpa_aborts_num; p_common->non_coalesced_pkts = stats.common.tpa_not_coalesced_pkts; p_common->coalesced_bytes = stats.common.tpa_coalesced_bytes; p_common->rx_64_byte_packets = stats.common.rx_64_byte_packets; p_common->rx_65_to_127_byte_packets = stats.common.rx_65_to_127_byte_packets; p_common->rx_128_to_255_byte_packets = stats.common.rx_128_to_255_byte_packets; p_common->rx_256_to_511_byte_packets = stats.common.rx_256_to_511_byte_packets; p_common->rx_512_to_1023_byte_packets = stats.common.rx_512_to_1023_byte_packets; p_common->rx_1024_to_1518_byte_packets = stats.common.rx_1024_to_1518_byte_packets; p_common->rx_crc_errors = stats.common.rx_crc_errors; p_common->rx_mac_crtl_frames = stats.common.rx_mac_crtl_frames; 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; 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; 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 = stats.common.tx_65_to_127_byte_packets; p_common->tx_128_to_255_byte_packets = 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; p_common->link_change_count = stats.common.link_change_count; p_common->ptp_skip_txts = edev->ptp_skip_txts; 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 int qede_setup_tc(struct net_device *ndev, u8 num_tc) { struct qede_dev *edev = netdev_priv(ndev); int cos, count, offset; if (num_tc > edev->dev_info.num_tc) return -EINVAL; netdev_reset_tc(ndev); netdev_set_num_tc(ndev, num_tc); for_each_cos_in_txq(edev, cos) { count = QEDE_TSS_COUNT(edev); offset = cos * QEDE_TSS_COUNT(edev); netdev_set_tc_queue(ndev, cos, count, offset); } return 0; } static int qede_set_flower(struct qede_dev *edev, struct flow_cls_offload *f, __be16 proto) { switch (f->command) { case FLOW_CLS_REPLACE: return qede_add_tc_flower_fltr(edev, proto, f); case FLOW_CLS_DESTROY: return qede_delete_flow_filter(edev, f->cookie); default: return -EOPNOTSUPP; } } static int qede_setup_tc_block_cb(enum tc_setup_type type, void *type_data, void *cb_priv) { struct flow_cls_offload *f; struct qede_dev *edev = cb_priv; if (!tc_cls_can_offload_and_chain0(edev->ndev, type_data)) return -EOPNOTSUPP; switch (type) { case TC_SETUP_CLSFLOWER: f = type_data; return qede_set_flower(edev, f, f->common.protocol); default: return -EOPNOTSUPP; } } static LIST_HEAD(qede_block_cb_list); static int qede_setup_tc_offload(struct net_device *dev, enum tc_setup_type type, void *type_data) { struct qede_dev *edev = netdev_priv(dev); struct tc_mqprio_qopt *mqprio; switch (type) { case TC_SETUP_BLOCK: return flow_block_cb_setup_simple(type_data, &qede_block_cb_list, qede_setup_tc_block_cb, edev, edev, true); case TC_SETUP_QDISC_MQPRIO: mqprio = type_data; mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS; return qede_setup_tc(dev, mqprio->num_tc); default: return -EOPNOTSUPP; } } static const struct net_device_ops qede_netdev_ops = { .ndo_open = qede_open, .ndo_stop = qede_close, .ndo_start_xmit = qede_start_xmit, .ndo_select_queue = qede_select_queue, .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_fix_features = qede_fix_features, .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 .ndo_setup_tc = qede_setup_tc_offload, }; 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_select_queue = qede_select_queue, .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_fix_features = qede_fix_features, .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_select_queue = qede_select_queue, .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_fix_features = qede_fix_features, .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_tc, 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; 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_GRO_HW | NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_HW_TC; 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); /* Handle mem alloc failure case where qede_init_fp * didn't register xdp_rxq_info yet. * Implicit only (fp->type & QEDE_FASTPATH_RX) */ if (fp->rxq && xdp_rxq_info_is_reg(&fp->rxq->xdp_rxq)) xdp_rxq_info_unreg(&fp->rxq->xdp_rxq); 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 = kcalloc(edev->dev_info.num_tc, 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; } /* The qede lock is used to protect driver state change and driver flows that * are not reentrant. */ void __qede_lock(struct qede_dev *edev) { mutex_lock(&edev->qede_lock); } void __qede_unlock(struct qede_dev *edev) { mutex_unlock(&edev->qede_lock); } /* This version of the lock should be used when acquiring the RTNL lock is also * needed in addition to the internal qede lock. */ static void qede_lock(struct qede_dev *edev) { rtnl_lock(); __qede_lock(edev); } static void qede_unlock(struct qede_dev *edev) { __qede_unlock(edev); rtnl_unlock(); } static void qede_sp_task(struct work_struct *work) { struct qede_dev *edev = container_of(work, struct qede_dev, sp_task.work); /* The locking scheme depends on the specific flag: * In case of QEDE_SP_RECOVERY, acquiring the RTNL lock is required to * ensure that ongoing flows are ended and new ones are not started. * In other cases - only the internal qede lock should be acquired. */ if (test_and_clear_bit(QEDE_SP_RECOVERY, &edev->sp_flags)) { #ifdef CONFIG_QED_SRIOV /* SRIOV must be disabled outside the lock to avoid a deadlock. * The recovery of the active VFs is currently not supported. */ qede_sriov_configure(edev->pdev, 0); #endif qede_lock(edev); qede_recovery_handler(edev); qede_unlock(edev); } __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; u16 num_cons; /* 64 rx + 64 tx + 64 XDP */ memset(&pf_params, 0, sizeof(struct qed_pf_params)); /* 1 rx + 1 xdp + max tx cos */ num_cons = QED_MIN_L2_CONS; pf_params.eth_pf_params.num_cons = (MAX_SB_PER_PF_MIMD - 1) * num_cons; /* 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, QEDE_PROBE_RECOVERY, }; 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; probe_params.recov_in_prog = (mode == QEDE_PROBE_RECOVERY); 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; if (mode != QEDE_PROBE_RECOVERY) { edev = qede_alloc_etherdev(cdev, pdev, &dev_info, dp_module, dp_level); if (!edev) { rc = -ENOMEM; goto err2; } } else { struct net_device *ndev = pci_get_drvdata(pdev); edev = netdev_priv(ndev); edev->cdev = cdev; memset(&edev->stats, 0, sizeof(edev->stats)); memcpy(&edev->dev_info, &dev_info, sizeof(dev_info)); } if (is_vf) set_bit(QEDE_FLAGS_IS_VF, &edev->flags); qede_init_ndev(edev); rc = qede_rdma_dev_add(edev, (mode == QEDE_PROBE_RECOVERY)); if (rc) goto err3; if (mode != QEDE_PROBE_RECOVERY) { /* Prepare the lock prior to the registration 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, (mode == QEDE_PROBE_NORMAL)); 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, (mode == QEDE_PROBE_RECOVERY)); 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, QEDE_REMOVE_RECOVERY, }; 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"); qede_rdma_dev_remove(edev, (mode == QEDE_REMOVE_RECOVERY)); if (mode != QEDE_REMOVE_RECOVERY) { unregister_netdev(ndev); cancel_delayed_work_sync(&edev->sp_task); edev->ops->common->set_power_state(cdev, PCI_D0); pci_set_drvdata(pdev, NULL); } qede_ptp_disable(edev); /* 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. */ if (mode != QEDE_REMOVE_RECOVERY) 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, QED_SB_TYPE_L2_QUEUE); 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_e4 *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_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *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 void qede_set_tpa_param(struct qede_rx_queue *rxq) { int i; for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) { struct qede_agg_info *tpa_info = &rxq->tpa_info[i]; tpa_info->state = QEDE_AGG_STATE_NONE; } } /* 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 : NET_SKB_PAD; size = rxq->rx_headroom + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); /* Make sure that the headroom and payload fit in a single page */ if (rxq->rx_buf_size + size > PAGE_SIZE) rxq->rx_buf_size = PAGE_SIZE - size; /* 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) { size = size + rxq->rx_buf_size; rxq->rx_buf_seg_size = roundup_pow_of_two(size); } else { rxq->rx_buf_seg_size = PAGE_SIZE; edev->ndev->features &= ~NETIF_F_GRO_HW; } /* 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; } } edev->gro_disable = !(edev->ndev->features & NETIF_F_GRO_HW); if (!edev->gro_disable) qede_set_tpa_param(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) { int cos; for_each_cos_in_txq(edev, cos) qede_free_mem_txq(edev, &fp->txq[cos]); } } /* 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) { int cos; for_each_cos_in_txq(edev, cos) { rc = qede_alloc_mem_txq(edev, &fp->txq[cos]); 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; } static void qede_empty_tx_queue(struct qede_dev *edev, struct qede_tx_queue *txq) { unsigned int pkts_compl = 0, bytes_compl = 0; struct netdev_queue *netdev_txq; int rc, len = 0; netdev_txq = netdev_get_tx_queue(edev->ndev, txq->ndev_txq_id); while (qed_chain_get_cons_idx(&txq->tx_pbl) != qed_chain_get_prod_idx(&txq->tx_pbl)) { DP_VERBOSE(edev, NETIF_MSG_IFDOWN, "Freeing a packet on tx queue[%d]: chain_cons 0x%x, chain_prod 0x%x\n", txq->index, qed_chain_get_cons_idx(&txq->tx_pbl), qed_chain_get_prod_idx(&txq->tx_pbl)); rc = qede_free_tx_pkt(edev, txq, &len); if (rc) { DP_NOTICE(edev, "Failed to free a packet on tx queue[%d]: chain_cons 0x%x, chain_prod 0x%x\n", txq->index, qed_chain_get_cons_idx(&txq->tx_pbl), qed_chain_get_prod_idx(&txq->tx_pbl)); break; } bytes_compl += len; pkts_compl++; txq->sw_tx_cons++; } netdev_tx_completed_queue(netdev_txq, pkts_compl, bytes_compl); } static void qede_empty_tx_queues(struct qede_dev *edev) { int i; for_each_queue(i) if (edev->fp_array[i].type & QEDE_FASTPATH_TX) { int cos; for_each_cos_in_txq(edev, cos) { struct qede_fastpath *fp; fp = &edev->fp_array[i]; qede_empty_tx_queue(edev, &fp->txq[cos]); } } } /* 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; /* Driver have no error path from here */ WARN_ON(xdp_rxq_info_reg(&fp->rxq->xdp_rxq, edev->ndev, fp->rxq->rxq_id) < 0); } if (fp->type & QEDE_FASTPATH_TX) { int cos; for_each_cos_in_txq(edev, cos) { struct qede_tx_queue *txq = &fp->txq[cos]; u16 ndev_tx_id; txq->cos = cos; txq->index = txq_index; ndev_tx_id = QEDE_TXQ_TO_NDEV_TXQ_ID(edev, txq); txq->ndev_txq_id = ndev_tx_id; if (edev->dev_info.is_legacy) txq->is_legacy = 1; txq->dev = &edev->pdev->dev; } txq_index++; } snprintf(fp->name, sizeof(fp->name), "%s-fp-%d", edev->ndev->name, queue_id); } } 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) * edev->dev_info.num_tc); 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) { /* delete doorbell from doorbell recovery mechanism */ edev->ops->common->db_recovery_del(edev->cdev, txq->doorbell_addr, &txq->tx_db); 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) { int cos; for_each_cos_in_txq(edev, cos) { rc = qede_drain_txq(edev, &fp->txq[cos], 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) { int cos; for_each_cos_in_txq(edev, cos) { rc = qede_stop_txq(edev, &fp->txq[cos], 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; params.tc = txq->cos; 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; /* register doorbell with doorbell recovery mechanism */ rc = edev->ops->common->db_recovery_add(edev->cdev, txq->doorbell_addr, &txq->tx_db, DB_REC_WIDTH_32B, DB_REC_KERNEL); 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; bpf_prog_add(edev->xdp_prog, 1); fp->rxq->xdp_prog = edev->xdp_prog; } if (fp->type & QEDE_FASTPATH_TX) { int cos; for_each_cos_in_txq(edev, cos) { rc = qede_start_txq(edev, fp, &fp->txq[cos], i, TX_PI(cos)); 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->b_inter_pf_switch || 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, QEDE_UNLOAD_RECOVERY, }; 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); clear_bit(QEDE_FLAGS_LINK_REQUESTED, &edev->flags); if (mode != QEDE_UNLOAD_RECOVERY) edev->state = QEDE_STATE_CLOSED; qede_rdma_dev_event_close(edev); /* Close OS Tx */ netif_tx_disable(edev->ndev); netif_carrier_off(edev->ndev); if (mode != QEDE_UNLOAD_RECOVERY) { /* 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); if (mode == QEDE_UNLOAD_RECOVERY) qede_empty_tx_queues(edev); qede_free_mem_load(edev); qede_free_fp_array(edev); out: if (!is_locked) __qede_unlock(edev); if (mode != QEDE_UNLOAD_RECOVERY) DP_NOTICE(edev, "Link is down\n"); edev->ptp_skip_txts = 0; DP_INFO(edev, "Ending qede unload\n"); } enum qede_load_mode { QEDE_LOAD_NORMAL, QEDE_LOAD_RELOAD, QEDE_LOAD_RECOVERY, }; static int qede_load(struct qede_dev *edev, enum qede_load_mode mode, bool is_locked) { struct qed_link_params link_params; u8 num_tc; 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"); num_tc = netdev_get_num_tc(edev->ndev); num_tc = num_tc ? num_tc : edev->dev_info.num_tc; qede_setup_tc(edev->ndev, num_tc); /* Program un-configured VLANs */ qede_configure_vlan_filters(edev); set_bit(QEDE_FLAGS_LINK_REQUESTED, &edev->flags); /* 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 (!test_bit(QEDE_FLAGS_LINK_REQUESTED, &edev->flags)) { DP_VERBOSE(edev, NETIF_MSG_LINK, "Interface is not ready\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); } } } static void qede_schedule_recovery_handler(void *dev) { struct qede_dev *edev = dev; if (edev->state == QEDE_STATE_RECOVERY) { DP_NOTICE(edev, "Avoid scheduling a recovery handling since already in recovery state\n"); return; } set_bit(QEDE_SP_RECOVERY, &edev->sp_flags); schedule_delayed_work(&edev->sp_task, 0); DP_INFO(edev, "Scheduled a recovery handler\n"); } static void qede_recovery_failed(struct qede_dev *edev) { netdev_err(edev->ndev, "Recovery handling has failed. Power cycle is needed.\n"); netif_device_detach(edev->ndev); if (edev->cdev) edev->ops->common->set_power_state(edev->cdev, PCI_D3hot); } static void qede_recovery_handler(struct qede_dev *edev) { u32 curr_state = edev->state; int rc; DP_NOTICE(edev, "Starting a recovery process\n"); /* No need to acquire first the qede_lock since is done by qede_sp_task * before calling this function. */ edev->state = QEDE_STATE_RECOVERY; edev->ops->common->recovery_prolog(edev->cdev); if (curr_state == QEDE_STATE_OPEN) qede_unload(edev, QEDE_UNLOAD_RECOVERY, true); __qede_remove(edev->pdev, QEDE_REMOVE_RECOVERY); rc = __qede_probe(edev->pdev, edev->dp_module, edev->dp_level, IS_VF(edev), QEDE_PROBE_RECOVERY); if (rc) { edev->cdev = NULL; goto err; } if (curr_state == QEDE_STATE_OPEN) { rc = qede_load(edev, QEDE_LOAD_RECOVERY, true); if (rc) goto err; qede_config_rx_mode(edev->ndev); udp_tunnel_get_rx_info(edev->ndev); } edev->state = curr_state; DP_NOTICE(edev, "Recovery handling is done\n"); return; err: qede_recovery_failed(edev); } static bool qede_is_txq_full(struct qede_dev *edev, struct qede_tx_queue *txq) { struct netdev_queue *netdev_txq; netdev_txq = netdev_get_tx_queue(edev->ndev, txq->ndev_txq_id); if (netif_xmit_stopped(netdev_txq)) return true; return false; } static void qede_get_generic_tlv_data(void *dev, struct qed_generic_tlvs *data) { struct qede_dev *edev = dev; struct netdev_hw_addr *ha; int i; if (edev->ndev->features & NETIF_F_IP_CSUM) data->feat_flags |= QED_TLV_IP_CSUM; if (edev->ndev->features & NETIF_F_TSO) data->feat_flags |= QED_TLV_LSO; ether_addr_copy(data->mac[0], edev->ndev->dev_addr); memset(data->mac[1], 0, ETH_ALEN); memset(data->mac[2], 0, ETH_ALEN); /* Copy the first two UC macs */ netif_addr_lock_bh(edev->ndev); i = 1; netdev_for_each_uc_addr(ha, edev->ndev) { ether_addr_copy(data->mac[i++], ha->addr); if (i == QED_TLV_MAC_COUNT) break; } netif_addr_unlock_bh(edev->ndev); } static void qede_get_eth_tlv_data(void *dev, void *data) { struct qed_mfw_tlv_eth *etlv = data; struct qede_dev *edev = dev; struct qede_fastpath *fp; int i; etlv->lso_maxoff_size = 0XFFFF; etlv->lso_maxoff_size_set = true; etlv->lso_minseg_size = (u16)ETH_TX_LSO_WINDOW_MIN_LEN; etlv->lso_minseg_size_set = true; etlv->prom_mode = !!(edev->ndev->flags & IFF_PROMISC); etlv->prom_mode_set = true; etlv->tx_descr_size = QEDE_TSS_COUNT(edev); etlv->tx_descr_size_set = true; etlv->rx_descr_size = QEDE_RSS_COUNT(edev); etlv->rx_descr_size_set = true; etlv->iov_offload = QED_MFW_TLV_IOV_OFFLOAD_VEB; etlv->iov_offload_set = true; /* Fill information regarding queues; Should be done under the qede * lock to guarantee those don't change beneath our feet. */ etlv->txqs_empty = true; etlv->rxqs_empty = true; etlv->num_txqs_full = 0; etlv->num_rxqs_full = 0; __qede_lock(edev); for_each_queue(i) { fp = &edev->fp_array[i]; if (fp->type & QEDE_FASTPATH_TX) { struct qede_tx_queue *txq = QEDE_FP_TC0_TXQ(fp); if (txq->sw_tx_cons != txq->sw_tx_prod) etlv->txqs_empty = false; if (qede_is_txq_full(edev, txq)) etlv->num_txqs_full++; } if (fp->type & QEDE_FASTPATH_RX) { if (qede_has_rx_work(fp->rxq)) etlv->rxqs_empty = false; /* This one is a bit tricky; Firmware might stop * placing packets if ring is not yet full. * Give an approximation. */ if (le16_to_cpu(*fp->rxq->hw_cons_ptr) - qed_chain_get_cons_idx(&fp->rxq->rx_comp_ring) > RX_RING_SIZE - 100) etlv->num_rxqs_full++; } } __qede_unlock(edev); etlv->txqs_empty_set = true; etlv->rxqs_empty_set = true; etlv->num_txqs_full_set = true; etlv->num_rxqs_full_set = true; }
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