diff options
Diffstat (limited to 'drivers/net/ethernet/huawei/hinic/hinic_sriov.c')
| -rw-r--r-- | drivers/net/ethernet/huawei/hinic/hinic_sriov.c | 1350 |
1 files changed, 1350 insertions, 0 deletions
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_sriov.c b/drivers/net/ethernet/huawei/hinic/hinic_sriov.c new file mode 100644 index 000000000..4d82ebfe2 --- /dev/null +++ b/drivers/net/ethernet/huawei/hinic/hinic_sriov.c @@ -0,0 +1,1350 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Huawei HiNIC PCI Express Linux driver + * Copyright(c) 2017 Huawei Technologies Co., Ltd + */ + +#include <linux/pci.h> +#include <linux/if_vlan.h> +#include <linux/interrupt.h> +#include <linux/etherdevice.h> +#include <linux/netdevice.h> + +#include "hinic_hw_dev.h" +#include "hinic_dev.h" +#include "hinic_hw_mbox.h" +#include "hinic_hw_cmdq.h" +#include "hinic_port.h" +#include "hinic_sriov.h" + +static unsigned char set_vf_link_state; +module_param(set_vf_link_state, byte, 0444); +MODULE_PARM_DESC(set_vf_link_state, "Set vf link state, 0 represents link auto, 1 represents link always up, 2 represents link always down. - default is 0."); + +#define HINIC_VLAN_PRIORITY_SHIFT 13 +#define HINIC_ADD_VLAN_IN_MAC 0x8000 +#define HINIC_TX_RATE_TABLE_FULL 12 + +static int hinic_set_mac(struct hinic_hwdev *hwdev, const u8 *mac_addr, + u16 vlan_id, u16 func_id) +{ + struct hinic_port_mac_cmd mac_info = {0}; + u16 out_size = sizeof(mac_info); + int err; + + mac_info.func_idx = func_id; + mac_info.vlan_id = vlan_id; + memcpy(mac_info.mac, mac_addr, ETH_ALEN); + + err = hinic_port_msg_cmd(hwdev, HINIC_PORT_CMD_SET_MAC, &mac_info, + sizeof(mac_info), &mac_info, &out_size); + if (err || out_size != sizeof(mac_info) || + (mac_info.status && mac_info.status != HINIC_MGMT_STATUS_EXIST)) { + dev_err(&hwdev->func_to_io.hwif->pdev->dev, "Failed to set MAC, err: %d, status: 0x%x, out size: 0x%x\n", + err, mac_info.status, out_size); + return -EIO; + } + + return 0; +} + +static void hinic_notify_vf_link_status(struct hinic_hwdev *hwdev, u16 vf_id, + u8 link_status) +{ + struct vf_data_storage *vf_infos = hwdev->func_to_io.vf_infos; + struct hinic_port_link_status link = {0}; + u16 out_size = sizeof(link); + int err; + + if (vf_infos[HW_VF_ID_TO_OS(vf_id)].registered) { + link.link = link_status; + link.func_id = hinic_glb_pf_vf_offset(hwdev->hwif) + vf_id; + err = hinic_mbox_to_vf(hwdev, HINIC_MOD_L2NIC, + vf_id, HINIC_PORT_CMD_LINK_STATUS_REPORT, + &link, sizeof(link), + &link, &out_size, 0); + if (err || !out_size || link.status) + dev_err(&hwdev->hwif->pdev->dev, + "Send link change event to VF %d failed, err: %d, status: 0x%x, out_size: 0x%x\n", + HW_VF_ID_TO_OS(vf_id), err, + link.status, out_size); + } +} + +/* send link change event mbox msg to active vfs under the pf */ +void hinic_notify_all_vfs_link_changed(struct hinic_hwdev *hwdev, + u8 link_status) +{ + struct hinic_func_to_io *nic_io = &hwdev->func_to_io; + u16 i; + + nic_io->link_status = link_status; + for (i = 1; i <= nic_io->max_vfs; i++) { + if (!nic_io->vf_infos[HW_VF_ID_TO_OS(i)].link_forced) + hinic_notify_vf_link_status(hwdev, i, link_status); + } +} + +static u16 hinic_vf_info_vlanprio(struct hinic_hwdev *hwdev, int vf_id) +{ + struct hinic_func_to_io *nic_io = &hwdev->func_to_io; + u16 pf_vlan, vlanprio; + u8 pf_qos; + + pf_vlan = nic_io->vf_infos[HW_VF_ID_TO_OS(vf_id)].pf_vlan; + pf_qos = nic_io->vf_infos[HW_VF_ID_TO_OS(vf_id)].pf_qos; + vlanprio = pf_vlan | pf_qos << HINIC_VLAN_PRIORITY_SHIFT; + + return vlanprio; +} + +static int hinic_set_vf_vlan(struct hinic_hwdev *hwdev, bool add, u16 vid, + u8 qos, int vf_id) +{ + struct hinic_vf_vlan_config vf_vlan = {0}; + u16 out_size = sizeof(vf_vlan); + int err; + u8 cmd; + + /* VLAN 0 is a special case, don't allow it to be removed */ + if (!vid && !add) + return 0; + + vf_vlan.func_id = hinic_glb_pf_vf_offset(hwdev->hwif) + vf_id; + vf_vlan.vlan_id = vid; + vf_vlan.qos = qos; + + if (add) + cmd = HINIC_PORT_CMD_SET_VF_VLAN; + else + cmd = HINIC_PORT_CMD_CLR_VF_VLAN; + + err = hinic_port_msg_cmd(hwdev, cmd, &vf_vlan, + sizeof(vf_vlan), &vf_vlan, &out_size); + if (err || !out_size || vf_vlan.status) { + dev_err(&hwdev->hwif->pdev->dev, "Failed to set VF %d vlan, err: %d, status: 0x%x, out size: 0x%x\n", + HW_VF_ID_TO_OS(vf_id), err, vf_vlan.status, out_size); + return -EFAULT; + } + + return 0; +} + +static int hinic_set_vf_tx_rate_max_min(struct hinic_hwdev *hwdev, u16 vf_id, + u32 max_rate, u32 min_rate) +{ + struct hinic_func_to_io *nic_io = &hwdev->func_to_io; + struct hinic_tx_rate_cfg_max_min rate_cfg = {0}; + u16 out_size = sizeof(rate_cfg); + int err; + + rate_cfg.func_id = hinic_glb_pf_vf_offset(hwdev->hwif) + vf_id; + rate_cfg.max_rate = max_rate; + rate_cfg.min_rate = min_rate; + err = hinic_port_msg_cmd(hwdev, HINIC_PORT_CMD_SET_VF_MAX_MIN_RATE, + &rate_cfg, sizeof(rate_cfg), &rate_cfg, + &out_size); + if ((rate_cfg.status != HINIC_MGMT_CMD_UNSUPPORTED && + rate_cfg.status) || err || !out_size) { + dev_err(&hwdev->hwif->pdev->dev, "Failed to set VF(%d) max rate(%d), min rate(%d), err: %d, status: 0x%x, out size: 0x%x\n", + HW_VF_ID_TO_OS(vf_id), max_rate, min_rate, err, + rate_cfg.status, out_size); + return -EIO; + } + + if (!rate_cfg.status) { + nic_io->vf_infos[HW_VF_ID_TO_OS(vf_id)].max_rate = max_rate; + nic_io->vf_infos[HW_VF_ID_TO_OS(vf_id)].min_rate = min_rate; + } + + return rate_cfg.status; +} + +static int hinic_set_vf_rate_limit(struct hinic_hwdev *hwdev, u16 vf_id, + u32 tx_rate) +{ + struct hinic_func_to_io *nic_io = &hwdev->func_to_io; + struct hinic_tx_rate_cfg rate_cfg = {0}; + u16 out_size = sizeof(rate_cfg); + int err; + + rate_cfg.func_id = hinic_glb_pf_vf_offset(hwdev->hwif) + vf_id; + rate_cfg.tx_rate = tx_rate; + err = hinic_port_msg_cmd(hwdev, HINIC_PORT_CMD_SET_VF_RATE, + &rate_cfg, sizeof(rate_cfg), &rate_cfg, + &out_size); + if (err || !out_size || rate_cfg.status) { + dev_err(&hwdev->hwif->pdev->dev, "Failed to set VF(%d) rate(%d), err: %d, status: 0x%x, out size: 0x%x\n", + HW_VF_ID_TO_OS(vf_id), tx_rate, err, rate_cfg.status, + out_size); + if (rate_cfg.status) + return rate_cfg.status; + + return -EIO; + } + + nic_io->vf_infos[HW_VF_ID_TO_OS(vf_id)].max_rate = tx_rate; + nic_io->vf_infos[HW_VF_ID_TO_OS(vf_id)].min_rate = 0; + + return 0; +} + +static int hinic_set_vf_tx_rate(struct hinic_hwdev *hwdev, u16 vf_id, + u32 max_rate, u32 min_rate) +{ + int err; + + err = hinic_set_vf_tx_rate_max_min(hwdev, vf_id, max_rate, min_rate); + if (err != HINIC_MGMT_CMD_UNSUPPORTED) + return err; + + if (min_rate) { + dev_err(&hwdev->hwif->pdev->dev, "Current firmware doesn't support to set min tx rate\n"); + return -EOPNOTSUPP; + } + + dev_info(&hwdev->hwif->pdev->dev, "Current firmware doesn't support to set min tx rate, force min_tx_rate = max_tx_rate\n"); + + return hinic_set_vf_rate_limit(hwdev, vf_id, max_rate); +} + +static int hinic_init_vf_config(struct hinic_hwdev *hwdev, u16 vf_id) +{ + struct vf_data_storage *vf_info; + u16 func_id, vlan_id; + int err = 0; + + vf_info = hwdev->func_to_io.vf_infos + HW_VF_ID_TO_OS(vf_id); + if (vf_info->pf_set_mac) { + func_id = hinic_glb_pf_vf_offset(hwdev->hwif) + vf_id; + + vlan_id = 0; + + err = hinic_set_mac(hwdev, vf_info->vf_mac_addr, vlan_id, + func_id); + if (err) { + dev_err(&hwdev->func_to_io.hwif->pdev->dev, "Failed to set VF %d MAC\n", + HW_VF_ID_TO_OS(vf_id)); + return err; + } + } + + if (hinic_vf_info_vlanprio(hwdev, vf_id)) { + err = hinic_set_vf_vlan(hwdev, true, vf_info->pf_vlan, + vf_info->pf_qos, vf_id); + if (err) { + dev_err(&hwdev->hwif->pdev->dev, "Failed to add VF %d VLAN_QOS\n", + HW_VF_ID_TO_OS(vf_id)); + return err; + } + } + + if (vf_info->max_rate) { + err = hinic_set_vf_tx_rate(hwdev, vf_id, vf_info->max_rate, + vf_info->min_rate); + if (err) { + dev_err(&hwdev->hwif->pdev->dev, "Failed to set VF %d max rate: %d, min rate: %d\n", + HW_VF_ID_TO_OS(vf_id), vf_info->max_rate, + vf_info->min_rate); + return err; + } + } + + return 0; +} + +static int hinic_register_vf_msg_handler(void *hwdev, u16 vf_id, + void *buf_in, u16 in_size, + void *buf_out, u16 *out_size) +{ + struct hinic_register_vf *register_info = buf_out; + struct hinic_hwdev *hw_dev = hwdev; + struct hinic_func_to_io *nic_io; + int err; + + nic_io = &hw_dev->func_to_io; + if (vf_id > nic_io->max_vfs) { + dev_err(&hw_dev->hwif->pdev->dev, "Register VF id %d exceed limit[0-%d]\n", + HW_VF_ID_TO_OS(vf_id), HW_VF_ID_TO_OS(nic_io->max_vfs)); + register_info->status = EFAULT; + return -EFAULT; + } + + *out_size = sizeof(*register_info); + err = hinic_init_vf_config(hw_dev, vf_id); + if (err) { + register_info->status = EFAULT; + return err; + } + + nic_io->vf_infos[HW_VF_ID_TO_OS(vf_id)].registered = true; + + return 0; +} + +static int hinic_unregister_vf_msg_handler(void *hwdev, u16 vf_id, + void *buf_in, u16 in_size, + void *buf_out, u16 *out_size) +{ + struct hinic_hwdev *hw_dev = hwdev; + struct hinic_func_to_io *nic_io; + + nic_io = &hw_dev->func_to_io; + *out_size = 0; + if (vf_id > nic_io->max_vfs) + return 0; + + nic_io->vf_infos[HW_VF_ID_TO_OS(vf_id)].registered = false; + + return 0; +} + +static int hinic_change_vf_mtu_msg_handler(void *hwdev, u16 vf_id, + void *buf_in, u16 in_size, + void *buf_out, u16 *out_size) +{ + struct hinic_hwdev *hw_dev = hwdev; + int err; + + err = hinic_port_msg_cmd(hwdev, HINIC_PORT_CMD_CHANGE_MTU, buf_in, + in_size, buf_out, out_size); + if (err) { + dev_err(&hw_dev->hwif->pdev->dev, "Failed to set VF %u mtu\n", + vf_id); + return err; + } + + return 0; +} + +static int hinic_get_vf_mac_msg_handler(void *hwdev, u16 vf_id, + void *buf_in, u16 in_size, + void *buf_out, u16 *out_size) +{ + struct hinic_port_mac_cmd *mac_info = buf_out; + struct hinic_hwdev *dev = hwdev; + struct hinic_func_to_io *nic_io; + struct vf_data_storage *vf_info; + + nic_io = &dev->func_to_io; + vf_info = nic_io->vf_infos + HW_VF_ID_TO_OS(vf_id); + + memcpy(mac_info->mac, vf_info->vf_mac_addr, ETH_ALEN); + mac_info->status = 0; + *out_size = sizeof(*mac_info); + + return 0; +} + +static int hinic_set_vf_mac_msg_handler(void *hwdev, u16 vf_id, + void *buf_in, u16 in_size, + void *buf_out, u16 *out_size) +{ + struct hinic_port_mac_cmd *mac_out = buf_out; + struct hinic_port_mac_cmd *mac_in = buf_in; + struct hinic_hwdev *hw_dev = hwdev; + struct hinic_func_to_io *nic_io; + struct vf_data_storage *vf_info; + int err; + + nic_io = &hw_dev->func_to_io; + vf_info = nic_io->vf_infos + HW_VF_ID_TO_OS(vf_id); + if (vf_info->pf_set_mac && !(vf_info->trust) && + is_valid_ether_addr(mac_in->mac)) { + dev_warn(&hw_dev->hwif->pdev->dev, "PF has already set VF %d MAC address\n", + HW_VF_ID_TO_OS(vf_id)); + mac_out->status = HINIC_PF_SET_VF_ALREADY; + *out_size = sizeof(*mac_out); + return 0; + } + + err = hinic_port_msg_cmd(hw_dev, HINIC_PORT_CMD_SET_MAC, buf_in, + in_size, buf_out, out_size); + if ((err && err != HINIC_MBOX_PF_BUSY_ACTIVE_FW) || !(*out_size)) { + dev_err(&hw_dev->hwif->pdev->dev, + "Failed to set VF %d MAC address, err: %d, status: 0x%x, out size: 0x%x\n", + HW_VF_ID_TO_OS(vf_id), err, mac_out->status, *out_size); + return -EFAULT; + } + + return err; +} + +static int hinic_del_vf_mac_msg_handler(void *hwdev, u16 vf_id, + void *buf_in, u16 in_size, + void *buf_out, u16 *out_size) +{ + struct hinic_port_mac_cmd *mac_out = buf_out; + struct hinic_port_mac_cmd *mac_in = buf_in; + struct hinic_hwdev *hw_dev = hwdev; + struct hinic_func_to_io *nic_io; + struct vf_data_storage *vf_info; + int err; + + nic_io = &hw_dev->func_to_io; + vf_info = nic_io->vf_infos + HW_VF_ID_TO_OS(vf_id); + if (vf_info->pf_set_mac && is_valid_ether_addr(mac_in->mac) && + !memcmp(vf_info->vf_mac_addr, mac_in->mac, ETH_ALEN)) { + dev_warn(&hw_dev->hwif->pdev->dev, "PF has already set VF mac.\n"); + mac_out->status = HINIC_PF_SET_VF_ALREADY; + *out_size = sizeof(*mac_out); + return 0; + } + + err = hinic_port_msg_cmd(hw_dev, HINIC_PORT_CMD_DEL_MAC, buf_in, + in_size, buf_out, out_size); + if ((err && err != HINIC_MBOX_PF_BUSY_ACTIVE_FW) || !(*out_size)) { + dev_err(&hw_dev->hwif->pdev->dev, "Failed to delete VF %d MAC, err: %d, status: 0x%x, out size: 0x%x\n", + HW_VF_ID_TO_OS(vf_id), err, mac_out->status, *out_size); + return -EFAULT; + } + + return err; +} + +static int hinic_get_vf_link_status_msg_handler(void *hwdev, u16 vf_id, + void *buf_in, u16 in_size, + void *buf_out, u16 *out_size) +{ + struct hinic_port_link_cmd *get_link = buf_out; + struct hinic_hwdev *hw_dev = hwdev; + struct vf_data_storage *vf_infos; + struct hinic_func_to_io *nic_io; + bool link_forced, link_up; + + nic_io = &hw_dev->func_to_io; + vf_infos = nic_io->vf_infos; + link_forced = vf_infos[HW_VF_ID_TO_OS(vf_id)].link_forced; + link_up = vf_infos[HW_VF_ID_TO_OS(vf_id)].link_up; + + if (link_forced) + get_link->state = link_up ? + HINIC_LINK_STATE_UP : HINIC_LINK_STATE_DOWN; + else + get_link->state = nic_io->link_status; + + get_link->status = 0; + *out_size = sizeof(*get_link); + + return 0; +} + +static bool check_func_table(struct hinic_hwdev *hwdev, u16 func_idx, + void *buf_in, u16 in_size) +{ + struct hinic_cmd_fw_ctxt *function_table = buf_in; + + if (!hinic_mbox_check_func_id_8B(hwdev, func_idx, buf_in, in_size) || + !function_table->rx_buf_sz) + return false; + + return true; +} + +static struct vf_cmd_msg_handle nic_vf_cmd_msg_handler[] = { + {HINIC_PORT_CMD_VF_REGISTER, hinic_register_vf_msg_handler}, + {HINIC_PORT_CMD_VF_UNREGISTER, hinic_unregister_vf_msg_handler}, + {HINIC_PORT_CMD_CHANGE_MTU, hinic_change_vf_mtu_msg_handler}, + {HINIC_PORT_CMD_GET_MAC, hinic_get_vf_mac_msg_handler}, + {HINIC_PORT_CMD_SET_MAC, hinic_set_vf_mac_msg_handler}, + {HINIC_PORT_CMD_DEL_MAC, hinic_del_vf_mac_msg_handler}, + {HINIC_PORT_CMD_GET_LINK_STATE, hinic_get_vf_link_status_msg_handler}, +}; + +static struct vf_cmd_check_handle nic_cmd_support_vf[] = { + {HINIC_PORT_CMD_VF_REGISTER, NULL}, + {HINIC_PORT_CMD_VF_UNREGISTER, NULL}, + {HINIC_PORT_CMD_CHANGE_MTU, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_ADD_VLAN, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_DEL_VLAN, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_SET_MAC, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_GET_MAC, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_DEL_MAC, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_SET_RX_MODE, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_GET_PAUSE_INFO, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_GET_LINK_STATE, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_SET_LRO, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_SET_RX_CSUM, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_SET_RX_VLAN_OFFLOAD, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_GET_VPORT_STAT, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_CLEAN_VPORT_STAT, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_GET_RSS_TEMPLATE_INDIR_TBL, + hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_SET_RSS_TEMPLATE_TBL, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_GET_RSS_TEMPLATE_TBL, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_SET_RSS_HASH_ENGINE, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_GET_RSS_HASH_ENGINE, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_GET_RSS_CTX_TBL, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_SET_RSS_CTX_TBL, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_RSS_TEMP_MGR, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_RSS_CFG, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_FWCTXT_INIT, check_func_table}, + {HINIC_PORT_CMD_GET_MGMT_VERSION, NULL}, + {HINIC_PORT_CMD_SET_FUNC_STATE, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_GET_GLOBAL_QPN, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_SET_TSO, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_SET_RQ_IQ_MAP, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_LINK_STATUS_REPORT, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_UPDATE_MAC, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_GET_CAP, hinic_mbox_check_func_id_8B}, + {HINIC_PORT_CMD_GET_LINK_MODE, hinic_mbox_check_func_id_8B}, +}; + +#define CHECK_IPSU_15BIT 0X8000 + +static +struct hinic_sriov_info *hinic_get_sriov_info_by_pcidev(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct hinic_dev *nic_dev = netdev_priv(netdev); + + return &nic_dev->sriov_info; +} + +static int hinic_check_mac_info(u8 status, u16 vlan_id) +{ + if ((status && status != HINIC_MGMT_STATUS_EXIST) || + (vlan_id & CHECK_IPSU_15BIT && + status == HINIC_MGMT_STATUS_EXIST)) + return -EINVAL; + + return 0; +} + +#define HINIC_VLAN_ID_MASK 0x7FFF + +static int hinic_update_mac(struct hinic_hwdev *hwdev, u8 *old_mac, + u8 *new_mac, u16 vlan_id, u16 func_id) +{ + struct hinic_port_mac_update mac_info = {0}; + u16 out_size = sizeof(mac_info); + int err; + + if (!hwdev || !old_mac || !new_mac) + return -EINVAL; + + if ((vlan_id & HINIC_VLAN_ID_MASK) >= VLAN_N_VID) { + dev_err(&hwdev->hwif->pdev->dev, "Invalid VLAN number: %d\n", + (vlan_id & HINIC_VLAN_ID_MASK)); + return -EINVAL; + } + + mac_info.func_id = func_id; + mac_info.vlan_id = vlan_id; + memcpy(mac_info.old_mac, old_mac, ETH_ALEN); + memcpy(mac_info.new_mac, new_mac, ETH_ALEN); + + err = hinic_port_msg_cmd(hwdev, HINIC_PORT_CMD_UPDATE_MAC, &mac_info, + sizeof(mac_info), &mac_info, &out_size); + + if (err || !out_size || + hinic_check_mac_info(mac_info.status, mac_info.vlan_id)) { + dev_err(&hwdev->hwif->pdev->dev, + "Failed to update MAC, err: %d, status: 0x%x, out size: 0x%x\n", + err, mac_info.status, out_size); + return -EINVAL; + } + + if (mac_info.status == HINIC_MGMT_STATUS_EXIST) + dev_warn(&hwdev->hwif->pdev->dev, "MAC is repeated. Ignore update operation\n"); + + return 0; +} + +static void hinic_get_vf_config(struct hinic_hwdev *hwdev, u16 vf_id, + struct ifla_vf_info *ivi) +{ + struct vf_data_storage *vfinfo; + + vfinfo = hwdev->func_to_io.vf_infos + HW_VF_ID_TO_OS(vf_id); + + ivi->vf = HW_VF_ID_TO_OS(vf_id); + memcpy(ivi->mac, vfinfo->vf_mac_addr, ETH_ALEN); + ivi->vlan = vfinfo->pf_vlan; + ivi->qos = vfinfo->pf_qos; + ivi->spoofchk = vfinfo->spoofchk; + ivi->trusted = vfinfo->trust; + ivi->max_tx_rate = vfinfo->max_rate; + ivi->min_tx_rate = vfinfo->min_rate; + + if (!vfinfo->link_forced) + ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; + else if (vfinfo->link_up) + ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; + else + ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; +} + +int hinic_ndo_get_vf_config(struct net_device *netdev, + int vf, struct ifla_vf_info *ivi) +{ + struct hinic_dev *nic_dev = netdev_priv(netdev); + struct hinic_sriov_info *sriov_info; + + sriov_info = &nic_dev->sriov_info; + if (vf >= sriov_info->num_vfs) + return -EINVAL; + + hinic_get_vf_config(sriov_info->hwdev, OS_VF_ID_TO_HW(vf), ivi); + + return 0; +} + +static int hinic_set_vf_mac(struct hinic_hwdev *hwdev, int vf, + unsigned char *mac_addr) +{ + struct hinic_func_to_io *nic_io = &hwdev->func_to_io; + struct vf_data_storage *vf_info; + u16 func_id; + int err; + + vf_info = nic_io->vf_infos + HW_VF_ID_TO_OS(vf); + + /* duplicate request, so just return success */ + if (vf_info->pf_set_mac && + !memcmp(vf_info->vf_mac_addr, mac_addr, ETH_ALEN)) + return 0; + + vf_info->pf_set_mac = true; + + func_id = hinic_glb_pf_vf_offset(hwdev->hwif) + vf; + err = hinic_update_mac(hwdev, vf_info->vf_mac_addr, + mac_addr, 0, func_id); + if (err) { + vf_info->pf_set_mac = false; + return err; + } + + memcpy(vf_info->vf_mac_addr, mac_addr, ETH_ALEN); + + return 0; +} + +int hinic_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) +{ + struct hinic_dev *nic_dev = netdev_priv(netdev); + struct hinic_sriov_info *sriov_info; + int err; + + sriov_info = &nic_dev->sriov_info; + if (!is_valid_ether_addr(mac) || vf >= sriov_info->num_vfs) + return -EINVAL; + + err = hinic_set_vf_mac(sriov_info->hwdev, OS_VF_ID_TO_HW(vf), mac); + if (err) + return err; + + netif_info(nic_dev, drv, netdev, "Setting MAC %pM on VF %d\n", mac, vf); + netif_info(nic_dev, drv, netdev, "Reload the VF driver to make this change effective."); + + return 0; +} + +static int hinic_add_vf_vlan(struct hinic_hwdev *hwdev, int vf_id, + u16 vlan, u8 qos) +{ + struct hinic_func_to_io *nic_io = &hwdev->func_to_io; + int err; + + err = hinic_set_vf_vlan(hwdev, true, vlan, qos, vf_id); + if (err) + return err; + + nic_io->vf_infos[HW_VF_ID_TO_OS(vf_id)].pf_vlan = vlan; + nic_io->vf_infos[HW_VF_ID_TO_OS(vf_id)].pf_qos = qos; + + dev_info(&hwdev->hwif->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", + vlan, qos, HW_VF_ID_TO_OS(vf_id)); + return 0; +} + +static int hinic_kill_vf_vlan(struct hinic_hwdev *hwdev, int vf_id) +{ + struct hinic_func_to_io *nic_io = &hwdev->func_to_io; + int err; + + err = hinic_set_vf_vlan(hwdev, false, + nic_io->vf_infos[HW_VF_ID_TO_OS(vf_id)].pf_vlan, + nic_io->vf_infos[HW_VF_ID_TO_OS(vf_id)].pf_qos, + vf_id); + if (err) + return err; + + dev_info(&hwdev->hwif->pdev->dev, "Remove VLAN %d on VF %d\n", + nic_io->vf_infos[HW_VF_ID_TO_OS(vf_id)].pf_vlan, + HW_VF_ID_TO_OS(vf_id)); + + nic_io->vf_infos[HW_VF_ID_TO_OS(vf_id)].pf_vlan = 0; + nic_io->vf_infos[HW_VF_ID_TO_OS(vf_id)].pf_qos = 0; + + return 0; +} + +static int hinic_update_mac_vlan(struct hinic_dev *nic_dev, u16 old_vlan, + u16 new_vlan, int vf_id) +{ + struct vf_data_storage *vf_info; + u16 vlan_id; + int err; + + if (!nic_dev || old_vlan >= VLAN_N_VID || new_vlan >= VLAN_N_VID) + return -EINVAL; + + vf_info = nic_dev->hwdev->func_to_io.vf_infos + HW_VF_ID_TO_OS(vf_id); + if (!vf_info->pf_set_mac) + return 0; + + vlan_id = old_vlan; + if (vlan_id) + vlan_id |= HINIC_ADD_VLAN_IN_MAC; + + err = hinic_port_del_mac(nic_dev, vf_info->vf_mac_addr, vlan_id); + if (err) { + dev_err(&nic_dev->hwdev->hwif->pdev->dev, "Failed to delete VF %d MAC %pM vlan %d\n", + HW_VF_ID_TO_OS(vf_id), vf_info->vf_mac_addr, old_vlan); + return err; + } + + vlan_id = new_vlan; + if (vlan_id) + vlan_id |= HINIC_ADD_VLAN_IN_MAC; + + err = hinic_port_add_mac(nic_dev, vf_info->vf_mac_addr, vlan_id); + if (err) { + dev_err(&nic_dev->hwdev->hwif->pdev->dev, "Failed to add VF %d MAC %pM vlan %d\n", + HW_VF_ID_TO_OS(vf_id), vf_info->vf_mac_addr, new_vlan); + goto out; + } + + return 0; + +out: + vlan_id = old_vlan; + if (vlan_id) + vlan_id |= HINIC_ADD_VLAN_IN_MAC; + hinic_port_add_mac(nic_dev, vf_info->vf_mac_addr, vlan_id); + + return err; +} + +static int set_hw_vf_vlan(struct hinic_dev *nic_dev, + u16 cur_vlanprio, int vf, u16 vlan, u8 qos) +{ + u16 old_vlan = cur_vlanprio & VLAN_VID_MASK; + int err = 0; + + if (vlan || qos) { + if (cur_vlanprio) { + err = hinic_kill_vf_vlan(nic_dev->hwdev, + OS_VF_ID_TO_HW(vf)); + if (err) { + dev_err(&nic_dev->sriov_info.pdev->dev, "Failed to delete vf %d old vlan %d\n", + vf, old_vlan); + goto out; + } + } + err = hinic_add_vf_vlan(nic_dev->hwdev, + OS_VF_ID_TO_HW(vf), vlan, qos); + if (err) { + dev_err(&nic_dev->sriov_info.pdev->dev, "Failed to add vf %d new vlan %d\n", + vf, vlan); + goto out; + } + } else { + err = hinic_kill_vf_vlan(nic_dev->hwdev, OS_VF_ID_TO_HW(vf)); + if (err) { + dev_err(&nic_dev->sriov_info.pdev->dev, "Failed to delete vf %d vlan %d\n", + vf, old_vlan); + goto out; + } + } + + err = hinic_update_mac_vlan(nic_dev, old_vlan, vlan, + OS_VF_ID_TO_HW(vf)); + +out: + return err; +} + +int hinic_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos, + __be16 vlan_proto) +{ + struct hinic_dev *nic_dev = netdev_priv(netdev); + struct hinic_sriov_info *sriov_info; + u16 vlanprio, cur_vlanprio; + + sriov_info = &nic_dev->sriov_info; + if (vf >= sriov_info->num_vfs || vlan > 4095 || qos > 7) + return -EINVAL; + if (vlan_proto != htons(ETH_P_8021Q)) + return -EPROTONOSUPPORT; + vlanprio = vlan | qos << HINIC_VLAN_PRIORITY_SHIFT; + cur_vlanprio = hinic_vf_info_vlanprio(nic_dev->hwdev, + OS_VF_ID_TO_HW(vf)); + /* duplicate request, so just return success */ + if (vlanprio == cur_vlanprio) + return 0; + + return set_hw_vf_vlan(nic_dev, cur_vlanprio, vf, vlan, qos); +} + +static int hinic_set_vf_trust(struct hinic_hwdev *hwdev, u16 vf_id, + bool trust) +{ + struct vf_data_storage *vf_infos; + struct hinic_func_to_io *nic_io; + + if (!hwdev) + return -EINVAL; + + nic_io = &hwdev->func_to_io; + vf_infos = nic_io->vf_infos; + vf_infos[vf_id].trust = trust; + + return 0; +} + +int hinic_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting) +{ + struct hinic_dev *adapter = netdev_priv(netdev); + struct hinic_sriov_info *sriov_info; + struct hinic_func_to_io *nic_io; + bool cur_trust; + int err; + + sriov_info = &adapter->sriov_info; + nic_io = &adapter->hwdev->func_to_io; + + if (vf >= sriov_info->num_vfs) + return -EINVAL; + + cur_trust = nic_io->vf_infos[vf].trust; + /* same request, so just return success */ + if ((setting && cur_trust) || (!setting && !cur_trust)) + return 0; + + err = hinic_set_vf_trust(adapter->hwdev, vf, setting); + if (!err) + dev_info(&sriov_info->pdev->dev, "Set VF %d trusted %s succeed\n", + vf, setting ? "on" : "off"); + else + dev_err(&sriov_info->pdev->dev, "Failed set VF %d trusted %s\n", + vf, setting ? "on" : "off"); + + return err; +} + +int hinic_ndo_set_vf_bw(struct net_device *netdev, + int vf, int min_tx_rate, int max_tx_rate) +{ + u32 speeds[] = {SPEED_10, SPEED_100, SPEED_1000, SPEED_10000, + SPEED_25000, SPEED_40000, SPEED_100000}; + struct hinic_dev *nic_dev = netdev_priv(netdev); + struct hinic_port_cap port_cap = { 0 }; + enum hinic_port_link_state link_state; + int err; + + if (vf >= nic_dev->sriov_info.num_vfs) { + netif_err(nic_dev, drv, netdev, "VF number must be less than %d\n", + nic_dev->sriov_info.num_vfs); + return -EINVAL; + } + + if (max_tx_rate < min_tx_rate) { + netif_err(nic_dev, drv, netdev, "Max rate %d must be greater than or equal to min rate %d\n", + max_tx_rate, min_tx_rate); + return -EINVAL; + } + + err = hinic_port_link_state(nic_dev, &link_state); + if (err) { + netif_err(nic_dev, drv, netdev, + "Get link status failed when setting vf tx rate\n"); + return -EIO; + } + + if (link_state == HINIC_LINK_STATE_DOWN) { + netif_err(nic_dev, drv, netdev, + "Link status must be up when setting vf tx rate\n"); + return -EPERM; + } + + err = hinic_port_get_cap(nic_dev, &port_cap); + if (err || port_cap.speed > LINK_SPEED_100GB) + return -EIO; + + /* rate limit cannot be less than 0 and greater than link speed */ + if (max_tx_rate < 0 || max_tx_rate > speeds[port_cap.speed]) { + netif_err(nic_dev, drv, netdev, "Max tx rate must be in [0 - %d]\n", + speeds[port_cap.speed]); + return -EINVAL; + } + + err = hinic_set_vf_tx_rate(nic_dev->hwdev, OS_VF_ID_TO_HW(vf), + max_tx_rate, min_tx_rate); + if (err) { + netif_err(nic_dev, drv, netdev, + "Unable to set VF %d max rate %d min rate %d%s\n", + vf, max_tx_rate, min_tx_rate, + err == HINIC_TX_RATE_TABLE_FULL ? + ", tx rate profile is full" : ""); + return -EIO; + } + + netif_info(nic_dev, drv, netdev, + "Set VF %d max tx rate %d min tx rate %d successfully\n", + vf, max_tx_rate, min_tx_rate); + + return 0; +} + +static int hinic_set_vf_spoofchk(struct hinic_hwdev *hwdev, u16 vf_id, + bool spoofchk) +{ + struct hinic_spoofchk_set spoofchk_cfg = {0}; + struct vf_data_storage *vf_infos = NULL; + u16 out_size = sizeof(spoofchk_cfg); + int err; + + if (!hwdev) + return -EINVAL; + + vf_infos = hwdev->func_to_io.vf_infos; + + spoofchk_cfg.func_id = hinic_glb_pf_vf_offset(hwdev->hwif) + vf_id; + spoofchk_cfg.state = spoofchk ? 1 : 0; + err = hinic_port_msg_cmd(hwdev, HINIC_PORT_CMD_ENABLE_SPOOFCHK, + &spoofchk_cfg, sizeof(spoofchk_cfg), + &spoofchk_cfg, &out_size); + if (spoofchk_cfg.status == HINIC_MGMT_CMD_UNSUPPORTED) { + err = HINIC_MGMT_CMD_UNSUPPORTED; + } else if (err || !out_size || spoofchk_cfg.status) { + dev_err(&hwdev->hwif->pdev->dev, "Failed to set VF(%d) spoofchk, err: %d, status: 0x%x, out size: 0x%x\n", + HW_VF_ID_TO_OS(vf_id), err, spoofchk_cfg.status, + out_size); + err = -EIO; + } + + vf_infos[HW_VF_ID_TO_OS(vf_id)].spoofchk = spoofchk; + + return err; +} + +int hinic_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting) +{ + struct hinic_dev *nic_dev = netdev_priv(netdev); + struct hinic_sriov_info *sriov_info; + bool cur_spoofchk; + int err; + + sriov_info = &nic_dev->sriov_info; + if (vf >= sriov_info->num_vfs) + return -EINVAL; + + cur_spoofchk = nic_dev->hwdev->func_to_io.vf_infos[vf].spoofchk; + + /* same request, so just return success */ + if ((setting && cur_spoofchk) || (!setting && !cur_spoofchk)) + return 0; + + err = hinic_set_vf_spoofchk(sriov_info->hwdev, + OS_VF_ID_TO_HW(vf), setting); + if (!err) { + netif_info(nic_dev, drv, netdev, "Set VF %d spoofchk %s successfully\n", + vf, setting ? "on" : "off"); + } else if (err == HINIC_MGMT_CMD_UNSUPPORTED) { + netif_err(nic_dev, drv, netdev, + "Current firmware doesn't support to set vf spoofchk, need to upgrade latest firmware version\n"); + err = -EOPNOTSUPP; + } + + return err; +} + +static int hinic_set_vf_link_state(struct hinic_hwdev *hwdev, u16 vf_id, + int link) +{ + struct hinic_func_to_io *nic_io = &hwdev->func_to_io; + struct vf_data_storage *vf_infos = nic_io->vf_infos; + u8 link_status = 0; + + switch (link) { + case HINIC_IFLA_VF_LINK_STATE_AUTO: + vf_infos[HW_VF_ID_TO_OS(vf_id)].link_forced = false; + vf_infos[HW_VF_ID_TO_OS(vf_id)].link_up = nic_io->link_status ? + true : false; + link_status = nic_io->link_status; + break; + case HINIC_IFLA_VF_LINK_STATE_ENABLE: + vf_infos[HW_VF_ID_TO_OS(vf_id)].link_forced = true; + vf_infos[HW_VF_ID_TO_OS(vf_id)].link_up = true; + link_status = HINIC_LINK_UP; + break; + case HINIC_IFLA_VF_LINK_STATE_DISABLE: + vf_infos[HW_VF_ID_TO_OS(vf_id)].link_forced = true; + vf_infos[HW_VF_ID_TO_OS(vf_id)].link_up = false; + link_status = HINIC_LINK_DOWN; + break; + default: + return -EINVAL; + } + + /* Notify the VF of its new link state */ + hinic_notify_vf_link_status(hwdev, vf_id, link_status); + + return 0; +} + +int hinic_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) +{ + struct hinic_dev *nic_dev = netdev_priv(netdev); + struct hinic_sriov_info *sriov_info; + + sriov_info = &nic_dev->sriov_info; + + if (vf_id >= sriov_info->num_vfs) { + netif_err(nic_dev, drv, netdev, + "Invalid VF Identifier %d\n", vf_id); + return -EINVAL; + } + + return hinic_set_vf_link_state(sriov_info->hwdev, + OS_VF_ID_TO_HW(vf_id), link); +} + +/* pf receive message from vf */ +static int nic_pf_mbox_handler(void *hwdev, u16 vf_id, u8 cmd, void *buf_in, + u16 in_size, void *buf_out, u16 *out_size) +{ + u8 size = ARRAY_SIZE(nic_cmd_support_vf); + struct vf_cmd_msg_handle *vf_msg_handle; + struct hinic_hwdev *dev = hwdev; + struct hinic_func_to_io *nic_io; + struct hinic_pfhwdev *pfhwdev; + int err = 0; + u32 i; + + if (!hwdev) + return -EINVAL; + + if (!hinic_mbox_check_cmd_valid(hwdev, nic_cmd_support_vf, vf_id, cmd, + buf_in, in_size, size)) { + dev_err(&dev->hwif->pdev->dev, + "PF Receive VF nic cmd: 0x%x, mbox len: 0x%x is invalid\n", + cmd, in_size); + return HINIC_MBOX_VF_CMD_ERROR; + } + + pfhwdev = container_of(dev, struct hinic_pfhwdev, hwdev); + nic_io = &dev->func_to_io; + for (i = 0; i < ARRAY_SIZE(nic_vf_cmd_msg_handler); i++) { + vf_msg_handle = &nic_vf_cmd_msg_handler[i]; + if (cmd == vf_msg_handle->cmd && + vf_msg_handle->cmd_msg_handler) { + err = vf_msg_handle->cmd_msg_handler(hwdev, vf_id, + buf_in, in_size, + buf_out, + out_size); + break; + } + } + if (i == ARRAY_SIZE(nic_vf_cmd_msg_handler)) + err = hinic_msg_to_mgmt(&pfhwdev->pf_to_mgmt, HINIC_MOD_L2NIC, + cmd, buf_in, in_size, buf_out, + out_size, HINIC_MGMT_MSG_SYNC); + + if (err && err != HINIC_MBOX_PF_BUSY_ACTIVE_FW) + dev_err(&nic_io->hwif->pdev->dev, "PF receive VF L2NIC cmd: %d process error, err:%d\n", + cmd, err); + return err; +} + +static int cfg_mbx_pf_proc_vf_msg(void *hwdev, u16 vf_id, u8 cmd, void *buf_in, + u16 in_size, void *buf_out, u16 *out_size) +{ + struct hinic_dev_cap *dev_cap = buf_out; + struct hinic_hwdev *dev = hwdev; + struct hinic_cap *cap; + + cap = &dev->nic_cap; + memset(dev_cap, 0, sizeof(*dev_cap)); + + dev_cap->max_vf = cap->max_vf; + dev_cap->max_sqs = cap->max_vf_qps; + dev_cap->max_rqs = cap->max_vf_qps; + dev_cap->port_id = dev->port_id; + + *out_size = sizeof(*dev_cap); + + return 0; +} + +static int hinic_init_vf_infos(struct hinic_func_to_io *nic_io, u16 vf_id) +{ + struct vf_data_storage *vf_infos = nic_io->vf_infos; + + if (set_vf_link_state > HINIC_IFLA_VF_LINK_STATE_DISABLE) { + dev_warn(&nic_io->hwif->pdev->dev, "Module Parameter set_vf_link_state value %d is out of range, resetting to %d\n", + set_vf_link_state, HINIC_IFLA_VF_LINK_STATE_AUTO); + set_vf_link_state = HINIC_IFLA_VF_LINK_STATE_AUTO; + } + + switch (set_vf_link_state) { + case HINIC_IFLA_VF_LINK_STATE_AUTO: + vf_infos[vf_id].link_forced = false; + break; + case HINIC_IFLA_VF_LINK_STATE_ENABLE: + vf_infos[vf_id].link_forced = true; + vf_infos[vf_id].link_up = true; + break; + case HINIC_IFLA_VF_LINK_STATE_DISABLE: + vf_infos[vf_id].link_forced = true; + vf_infos[vf_id].link_up = false; + break; + default: + dev_err(&nic_io->hwif->pdev->dev, "Invalid input parameter set_vf_link_state: %d\n", + set_vf_link_state); + return -EINVAL; + } + + return 0; +} + +static void hinic_clear_vf_infos(struct hinic_dev *nic_dev, u16 vf_id) +{ + struct vf_data_storage *vf_infos; + + vf_infos = nic_dev->hwdev->func_to_io.vf_infos + HW_VF_ID_TO_OS(vf_id); + if (vf_infos->pf_set_mac) + hinic_port_del_mac(nic_dev, vf_infos->vf_mac_addr, 0); + + if (hinic_vf_info_vlanprio(nic_dev->hwdev, vf_id)) + hinic_kill_vf_vlan(nic_dev->hwdev, vf_id); + + if (vf_infos->max_rate) + hinic_set_vf_tx_rate(nic_dev->hwdev, vf_id, 0, 0); + + if (vf_infos->spoofchk) + hinic_set_vf_spoofchk(nic_dev->hwdev, vf_id, false); + + if (vf_infos->trust) + hinic_set_vf_trust(nic_dev->hwdev, vf_id, false); + + memset(vf_infos, 0, sizeof(*vf_infos)); + /* set vf_infos to default */ + hinic_init_vf_infos(&nic_dev->hwdev->func_to_io, HW_VF_ID_TO_OS(vf_id)); +} + +static int hinic_deinit_vf_hw(struct hinic_sriov_info *sriov_info, + u16 start_vf_id, u16 end_vf_id) +{ + struct hinic_dev *nic_dev; + u16 func_idx, idx; + + nic_dev = container_of(sriov_info, struct hinic_dev, sriov_info); + + for (idx = start_vf_id; idx <= end_vf_id; idx++) { + func_idx = hinic_glb_pf_vf_offset(nic_dev->hwdev->hwif) + idx; + hinic_set_wq_page_size(nic_dev->hwdev, func_idx, + HINIC_HW_WQ_PAGE_SIZE); + hinic_clear_vf_infos(nic_dev, idx); + } + + return 0; +} + +int hinic_vf_func_init(struct hinic_hwdev *hwdev) +{ + struct hinic_register_vf register_info = {0}; + u16 out_size = sizeof(register_info); + struct hinic_func_to_io *nic_io; + int err = 0; + u32 size, i; + + err = hinic_vf_mbox_random_id_init(hwdev); + if (err) { + dev_err(&hwdev->hwif->pdev->dev, "Failed to init vf mbox random id, err: %d\n", + err); + return err; + } + + nic_io = &hwdev->func_to_io; + + if (HINIC_IS_VF(hwdev->hwif)) { + err = hinic_mbox_to_pf(hwdev, HINIC_MOD_L2NIC, + HINIC_PORT_CMD_VF_REGISTER, + ®ister_info, sizeof(register_info), + ®ister_info, &out_size, 0); + if (err || register_info.status || !out_size) { + dev_err(&hwdev->hwif->pdev->dev, + "Failed to register VF, err: %d, status: 0x%x, out size: 0x%x\n", + err, register_info.status, out_size); + return -EIO; + } + } else { + err = hinic_register_pf_mbox_cb(hwdev, HINIC_MOD_CFGM, + cfg_mbx_pf_proc_vf_msg); + if (err) { + dev_err(&hwdev->hwif->pdev->dev, + "Register PF mailbox callback failed\n"); + return err; + } + nic_io->max_vfs = hwdev->nic_cap.max_vf; + size = sizeof(*nic_io->vf_infos) * nic_io->max_vfs; + if (size != 0) { + nic_io->vf_infos = kzalloc(size, GFP_KERNEL); + if (!nic_io->vf_infos) { + err = -ENOMEM; + goto out_free_nic_io; + } + + for (i = 0; i < nic_io->max_vfs; i++) { + err = hinic_init_vf_infos(nic_io, i); + if (err) + goto err_init_vf_infos; + } + + err = hinic_register_pf_mbox_cb(hwdev, HINIC_MOD_L2NIC, + nic_pf_mbox_handler); + if (err) + goto err_register_pf_mbox_cb; + } + } + + return 0; + +err_register_pf_mbox_cb: +err_init_vf_infos: + kfree(nic_io->vf_infos); +out_free_nic_io: + return err; +} + +void hinic_vf_func_free(struct hinic_hwdev *hwdev) +{ + struct hinic_register_vf unregister = {0}; + u16 out_size = sizeof(unregister); + int err; + + if (HINIC_IS_VF(hwdev->hwif)) { + err = hinic_mbox_to_pf(hwdev, HINIC_MOD_L2NIC, + HINIC_PORT_CMD_VF_UNREGISTER, + &unregister, sizeof(unregister), + &unregister, &out_size, 0); + if (err || !out_size || unregister.status) + dev_err(&hwdev->hwif->pdev->dev, "Failed to unregister VF, err: %d, status: 0x%x, out_size: 0x%x\n", + err, unregister.status, out_size); + } else { + if (hwdev->func_to_io.vf_infos) { + hinic_unregister_pf_mbox_cb(hwdev, HINIC_MOD_L2NIC); + kfree(hwdev->func_to_io.vf_infos); + } + } +} + +static int hinic_init_vf_hw(struct hinic_hwdev *hwdev, u16 start_vf_id, + u16 end_vf_id) +{ + u16 i, func_idx; + int err; + + /* vf use 256K as default wq page size, and can't change it */ + for (i = start_vf_id; i <= end_vf_id; i++) { + func_idx = hinic_glb_pf_vf_offset(hwdev->hwif) + i; + err = hinic_set_wq_page_size(hwdev, func_idx, + HINIC_DEFAULT_WQ_PAGE_SIZE); + if (err) + return err; + } + + return 0; +} + +int hinic_pci_sriov_disable(struct pci_dev *pdev) +{ + struct hinic_sriov_info *sriov_info; + u16 tmp_vfs; + + sriov_info = hinic_get_sriov_info_by_pcidev(pdev); + /* if SR-IOV is already disabled then nothing will be done */ + if (!sriov_info->sriov_enabled) + return 0; + + set_bit(HINIC_SRIOV_DISABLE, &sriov_info->state); + + /* If our VFs are assigned we cannot shut down SR-IOV + * without causing issues, so just leave the hardware + * available but disabled + */ + if (pci_vfs_assigned(sriov_info->pdev)) { + clear_bit(HINIC_SRIOV_DISABLE, &sriov_info->state); + dev_warn(&pdev->dev, "Unloading driver while VFs are assigned - VFs will not be deallocated\n"); + return -EPERM; + } + sriov_info->sriov_enabled = false; + + /* disable iov and allow time for transactions to clear */ + pci_disable_sriov(sriov_info->pdev); + + tmp_vfs = (u16)sriov_info->num_vfs; + sriov_info->num_vfs = 0; + hinic_deinit_vf_hw(sriov_info, OS_VF_ID_TO_HW(0), + OS_VF_ID_TO_HW(tmp_vfs - 1)); + + clear_bit(HINIC_SRIOV_DISABLE, &sriov_info->state); + + return 0; +} + +int hinic_pci_sriov_enable(struct pci_dev *pdev, int num_vfs) +{ + struct hinic_sriov_info *sriov_info; + int err; + + sriov_info = hinic_get_sriov_info_by_pcidev(pdev); + + if (test_and_set_bit(HINIC_SRIOV_ENABLE, &sriov_info->state)) { + dev_err(&pdev->dev, + "SR-IOV enable in process, please wait, num_vfs %d\n", + num_vfs); + return -EPERM; + } + + err = hinic_init_vf_hw(sriov_info->hwdev, OS_VF_ID_TO_HW(0), + OS_VF_ID_TO_HW((u16)num_vfs - 1)); + if (err) { + dev_err(&sriov_info->pdev->dev, + "Failed to init vf in hardware before enable sriov, error %d\n", + err); + clear_bit(HINIC_SRIOV_ENABLE, &sriov_info->state); + return err; + } + + err = pci_enable_sriov(sriov_info->pdev, num_vfs); + if (err) { + dev_err(&pdev->dev, + "Failed to enable SR-IOV, error %d\n", err); + clear_bit(HINIC_SRIOV_ENABLE, &sriov_info->state); + return err; + } + + sriov_info->sriov_enabled = true; + sriov_info->num_vfs = num_vfs; + clear_bit(HINIC_SRIOV_ENABLE, &sriov_info->state); + + return num_vfs; +} + +int hinic_pci_sriov_configure(struct pci_dev *dev, int num_vfs) +{ + struct hinic_sriov_info *sriov_info; + + sriov_info = hinic_get_sriov_info_by_pcidev(dev); + + if (test_bit(HINIC_FUNC_REMOVE, &sriov_info->state)) + return -EBUSY; + + if (!num_vfs) + return hinic_pci_sriov_disable(dev); + else + return hinic_pci_sriov_enable(dev, num_vfs); +} |