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- /*
- * QLogic qlcnic NIC Driver
- * Copyright (c) 2009-2013 QLogic Corporation
- *
- * See LICENSE.qlcnic for copyright and licensing details.
- */
- #include <linux/types.h>
- #include "qlcnic_sriov.h"
- #include "qlcnic.h"
- #include "qlcnic_83xx_hw.h"
- #define QLC_BC_COMMAND 0
- #define QLC_BC_RESPONSE 1
- #define QLC_MBOX_RESP_TIMEOUT (10 * HZ)
- #define QLC_MBOX_CH_FREE_TIMEOUT (10 * HZ)
- #define QLC_BC_MSG 0
- #define QLC_BC_CFREE 1
- #define QLC_BC_FLR 2
- #define QLC_BC_HDR_SZ 16
- #define QLC_BC_PAYLOAD_SZ (1024 - QLC_BC_HDR_SZ)
- #define QLC_DEFAULT_RCV_DESCRIPTORS_SRIOV_VF 2048
- #define QLC_DEFAULT_JUMBO_RCV_DESCRIPTORS_SRIOV_VF 512
- #define QLC_83XX_VF_RESET_FAIL_THRESH 8
- #define QLC_BC_CMD_MAX_RETRY_CNT 5
- static void qlcnic_sriov_vf_free_mac_list(struct qlcnic_adapter *);
- static int qlcnic_sriov_alloc_bc_mbx_args(struct qlcnic_cmd_args *, u32);
- static void qlcnic_sriov_vf_poll_dev_state(struct work_struct *);
- static void qlcnic_sriov_vf_cancel_fw_work(struct qlcnic_adapter *);
- static void qlcnic_sriov_cleanup_transaction(struct qlcnic_bc_trans *);
- static int qlcnic_sriov_issue_cmd(struct qlcnic_adapter *,
- struct qlcnic_cmd_args *);
- static int qlcnic_sriov_channel_cfg_cmd(struct qlcnic_adapter *, u8);
- static void qlcnic_sriov_process_bc_cmd(struct work_struct *);
- static int qlcnic_sriov_vf_shutdown(struct pci_dev *);
- static int qlcnic_sriov_vf_resume(struct qlcnic_adapter *);
- static int qlcnic_sriov_async_issue_cmd(struct qlcnic_adapter *,
- struct qlcnic_cmd_args *);
- static struct qlcnic_hardware_ops qlcnic_sriov_vf_hw_ops = {
- .read_crb = qlcnic_83xx_read_crb,
- .write_crb = qlcnic_83xx_write_crb,
- .read_reg = qlcnic_83xx_rd_reg_indirect,
- .write_reg = qlcnic_83xx_wrt_reg_indirect,
- .get_mac_address = qlcnic_83xx_get_mac_address,
- .setup_intr = qlcnic_83xx_setup_intr,
- .alloc_mbx_args = qlcnic_83xx_alloc_mbx_args,
- .mbx_cmd = qlcnic_sriov_issue_cmd,
- .get_func_no = qlcnic_83xx_get_func_no,
- .api_lock = qlcnic_83xx_cam_lock,
- .api_unlock = qlcnic_83xx_cam_unlock,
- .process_lb_rcv_ring_diag = qlcnic_83xx_process_rcv_ring_diag,
- .create_rx_ctx = qlcnic_83xx_create_rx_ctx,
- .create_tx_ctx = qlcnic_83xx_create_tx_ctx,
- .del_rx_ctx = qlcnic_83xx_del_rx_ctx,
- .del_tx_ctx = qlcnic_83xx_del_tx_ctx,
- .setup_link_event = qlcnic_83xx_setup_link_event,
- .get_nic_info = qlcnic_83xx_get_nic_info,
- .get_pci_info = qlcnic_83xx_get_pci_info,
- .set_nic_info = qlcnic_83xx_set_nic_info,
- .change_macvlan = qlcnic_83xx_sre_macaddr_change,
- .napi_enable = qlcnic_83xx_napi_enable,
- .napi_disable = qlcnic_83xx_napi_disable,
- .config_intr_coal = qlcnic_83xx_config_intr_coal,
- .config_rss = qlcnic_83xx_config_rss,
- .config_hw_lro = qlcnic_83xx_config_hw_lro,
- .config_promisc_mode = qlcnic_83xx_nic_set_promisc,
- .change_l2_filter = qlcnic_83xx_change_l2_filter,
- .get_board_info = qlcnic_83xx_get_port_info,
- .free_mac_list = qlcnic_sriov_vf_free_mac_list,
- .enable_sds_intr = qlcnic_83xx_enable_sds_intr,
- .disable_sds_intr = qlcnic_83xx_disable_sds_intr,
- };
- static struct qlcnic_nic_template qlcnic_sriov_vf_ops = {
- .config_bridged_mode = qlcnic_config_bridged_mode,
- .config_led = qlcnic_config_led,
- .cancel_idc_work = qlcnic_sriov_vf_cancel_fw_work,
- .napi_add = qlcnic_83xx_napi_add,
- .napi_del = qlcnic_83xx_napi_del,
- .shutdown = qlcnic_sriov_vf_shutdown,
- .resume = qlcnic_sriov_vf_resume,
- .config_ipaddr = qlcnic_83xx_config_ipaddr,
- .clear_legacy_intr = qlcnic_83xx_clear_legacy_intr,
- };
- static const struct qlcnic_mailbox_metadata qlcnic_sriov_bc_mbx_tbl[] = {
- {QLCNIC_BC_CMD_CHANNEL_INIT, 2, 2},
- {QLCNIC_BC_CMD_CHANNEL_TERM, 2, 2},
- {QLCNIC_BC_CMD_GET_ACL, 3, 14},
- {QLCNIC_BC_CMD_CFG_GUEST_VLAN, 2, 2},
- };
- static inline bool qlcnic_sriov_bc_msg_check(u32 val)
- {
- return (val & (1 << QLC_BC_MSG)) ? true : false;
- }
- static inline bool qlcnic_sriov_channel_free_check(u32 val)
- {
- return (val & (1 << QLC_BC_CFREE)) ? true : false;
- }
- static inline bool qlcnic_sriov_flr_check(u32 val)
- {
- return (val & (1 << QLC_BC_FLR)) ? true : false;
- }
- static inline u8 qlcnic_sriov_target_func_id(u32 val)
- {
- return (val >> 4) & 0xff;
- }
- static int qlcnic_sriov_virtid_fn(struct qlcnic_adapter *adapter, int vf_id)
- {
- struct pci_dev *dev = adapter->pdev;
- int pos;
- u16 stride, offset;
- if (qlcnic_sriov_vf_check(adapter))
- return 0;
- pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV);
- if (!pos)
- return 0;
- pci_read_config_word(dev, pos + PCI_SRIOV_VF_OFFSET, &offset);
- pci_read_config_word(dev, pos + PCI_SRIOV_VF_STRIDE, &stride);
- return (dev->devfn + offset + stride * vf_id) & 0xff;
- }
- int qlcnic_sriov_init(struct qlcnic_adapter *adapter, int num_vfs)
- {
- struct qlcnic_sriov *sriov;
- struct qlcnic_back_channel *bc;
- struct workqueue_struct *wq;
- struct qlcnic_vport *vp;
- struct qlcnic_vf_info *vf;
- int err, i;
- if (!qlcnic_sriov_enable_check(adapter))
- return -EIO;
- sriov = kzalloc(sizeof(struct qlcnic_sriov), GFP_KERNEL);
- if (!sriov)
- return -ENOMEM;
- adapter->ahw->sriov = sriov;
- sriov->num_vfs = num_vfs;
- bc = &sriov->bc;
- sriov->vf_info = kzalloc(sizeof(struct qlcnic_vf_info) *
- num_vfs, GFP_KERNEL);
- if (!sriov->vf_info) {
- err = -ENOMEM;
- goto qlcnic_free_sriov;
- }
- wq = create_singlethread_workqueue("bc-trans");
- if (wq == NULL) {
- err = -ENOMEM;
- dev_err(&adapter->pdev->dev,
- "Cannot create bc-trans workqueue\n");
- goto qlcnic_free_vf_info;
- }
- bc->bc_trans_wq = wq;
- wq = create_singlethread_workqueue("async");
- if (wq == NULL) {
- err = -ENOMEM;
- dev_err(&adapter->pdev->dev, "Cannot create async workqueue\n");
- goto qlcnic_destroy_trans_wq;
- }
- bc->bc_async_wq = wq;
- INIT_LIST_HEAD(&bc->async_list);
- for (i = 0; i < num_vfs; i++) {
- vf = &sriov->vf_info[i];
- vf->adapter = adapter;
- vf->pci_func = qlcnic_sriov_virtid_fn(adapter, i);
- mutex_init(&vf->send_cmd_lock);
- spin_lock_init(&vf->vlan_list_lock);
- INIT_LIST_HEAD(&vf->rcv_act.wait_list);
- INIT_LIST_HEAD(&vf->rcv_pend.wait_list);
- spin_lock_init(&vf->rcv_act.lock);
- spin_lock_init(&vf->rcv_pend.lock);
- init_completion(&vf->ch_free_cmpl);
- INIT_WORK(&vf->trans_work, qlcnic_sriov_process_bc_cmd);
- if (qlcnic_sriov_pf_check(adapter)) {
- vp = kzalloc(sizeof(struct qlcnic_vport), GFP_KERNEL);
- if (!vp) {
- err = -ENOMEM;
- goto qlcnic_destroy_async_wq;
- }
- sriov->vf_info[i].vp = vp;
- vp->vlan_mode = QLC_GUEST_VLAN_MODE;
- vp->max_tx_bw = MAX_BW;
- vp->min_tx_bw = MIN_BW;
- vp->spoofchk = false;
- random_ether_addr(vp->mac);
- dev_info(&adapter->pdev->dev,
- "MAC Address %pM is configured for VF %d\n",
- vp->mac, i);
- }
- }
- return 0;
- qlcnic_destroy_async_wq:
- destroy_workqueue(bc->bc_async_wq);
- qlcnic_destroy_trans_wq:
- destroy_workqueue(bc->bc_trans_wq);
- qlcnic_free_vf_info:
- kfree(sriov->vf_info);
- qlcnic_free_sriov:
- kfree(adapter->ahw->sriov);
- return err;
- }
- void qlcnic_sriov_cleanup_list(struct qlcnic_trans_list *t_list)
- {
- struct qlcnic_bc_trans *trans;
- struct qlcnic_cmd_args cmd;
- unsigned long flags;
- spin_lock_irqsave(&t_list->lock, flags);
- while (!list_empty(&t_list->wait_list)) {
- trans = list_first_entry(&t_list->wait_list,
- struct qlcnic_bc_trans, list);
- list_del(&trans->list);
- t_list->count--;
- cmd.req.arg = (u32 *)trans->req_pay;
- cmd.rsp.arg = (u32 *)trans->rsp_pay;
- qlcnic_free_mbx_args(&cmd);
- qlcnic_sriov_cleanup_transaction(trans);
- }
- spin_unlock_irqrestore(&t_list->lock, flags);
- }
- void __qlcnic_sriov_cleanup(struct qlcnic_adapter *adapter)
- {
- struct qlcnic_sriov *sriov = adapter->ahw->sriov;
- struct qlcnic_back_channel *bc = &sriov->bc;
- struct qlcnic_vf_info *vf;
- int i;
- if (!qlcnic_sriov_enable_check(adapter))
- return;
- qlcnic_sriov_cleanup_async_list(bc);
- destroy_workqueue(bc->bc_async_wq);
- for (i = 0; i < sriov->num_vfs; i++) {
- vf = &sriov->vf_info[i];
- qlcnic_sriov_cleanup_list(&vf->rcv_pend);
- cancel_work_sync(&vf->trans_work);
- qlcnic_sriov_cleanup_list(&vf->rcv_act);
- }
- destroy_workqueue(bc->bc_trans_wq);
- for (i = 0; i < sriov->num_vfs; i++)
- kfree(sriov->vf_info[i].vp);
- kfree(sriov->vf_info);
- kfree(adapter->ahw->sriov);
- }
- static void qlcnic_sriov_vf_cleanup(struct qlcnic_adapter *adapter)
- {
- qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM);
- qlcnic_sriov_cfg_bc_intr(adapter, 0);
- __qlcnic_sriov_cleanup(adapter);
- }
- void qlcnic_sriov_cleanup(struct qlcnic_adapter *adapter)
- {
- if (!test_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state))
- return;
- qlcnic_sriov_free_vlans(adapter);
- if (qlcnic_sriov_pf_check(adapter))
- qlcnic_sriov_pf_cleanup(adapter);
- if (qlcnic_sriov_vf_check(adapter))
- qlcnic_sriov_vf_cleanup(adapter);
- }
- static int qlcnic_sriov_post_bc_msg(struct qlcnic_adapter *adapter, u32 *hdr,
- u32 *pay, u8 pci_func, u8 size)
- {
- struct qlcnic_hardware_context *ahw = adapter->ahw;
- struct qlcnic_mailbox *mbx = ahw->mailbox;
- struct qlcnic_cmd_args cmd;
- unsigned long timeout;
- int err;
- memset(&cmd, 0, sizeof(struct qlcnic_cmd_args));
- cmd.hdr = hdr;
- cmd.pay = pay;
- cmd.pay_size = size;
- cmd.func_num = pci_func;
- cmd.op_type = QLC_83XX_MBX_POST_BC_OP;
- cmd.cmd_op = ((struct qlcnic_bc_hdr *)hdr)->cmd_op;
- err = mbx->ops->enqueue_cmd(adapter, &cmd, &timeout);
- if (err) {
- dev_err(&adapter->pdev->dev,
- "%s: Mailbox not available, cmd_op=0x%x, cmd_type=0x%x, pci_func=0x%x, op_mode=0x%x\n",
- __func__, cmd.cmd_op, cmd.type, ahw->pci_func,
- ahw->op_mode);
- return err;
- }
- if (!wait_for_completion_timeout(&cmd.completion, timeout)) {
- dev_err(&adapter->pdev->dev,
- "%s: Mailbox command timed out, cmd_op=0x%x, cmd_type=0x%x, pci_func=0x%x, op_mode=0x%x\n",
- __func__, cmd.cmd_op, cmd.type, ahw->pci_func,
- ahw->op_mode);
- flush_workqueue(mbx->work_q);
- }
- return cmd.rsp_opcode;
- }
- static void qlcnic_sriov_vf_cfg_buff_desc(struct qlcnic_adapter *adapter)
- {
- adapter->num_rxd = QLC_DEFAULT_RCV_DESCRIPTORS_SRIOV_VF;
- adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
- adapter->num_jumbo_rxd = QLC_DEFAULT_JUMBO_RCV_DESCRIPTORS_SRIOV_VF;
- adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
- adapter->num_txd = MAX_CMD_DESCRIPTORS;
- adapter->max_rds_rings = MAX_RDS_RINGS;
- }
- int qlcnic_sriov_get_vf_vport_info(struct qlcnic_adapter *adapter,
- struct qlcnic_info *npar_info, u16 vport_id)
- {
- struct device *dev = &adapter->pdev->dev;
- struct qlcnic_cmd_args cmd;
- int err;
- u32 status;
- err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_NIC_INFO);
- if (err)
- return err;
- cmd.req.arg[1] = vport_id << 16 | 0x1;
- err = qlcnic_issue_cmd(adapter, &cmd);
- if (err) {
- dev_err(&adapter->pdev->dev,
- "Failed to get vport info, err=%d\n", err);
- qlcnic_free_mbx_args(&cmd);
- return err;
- }
- status = cmd.rsp.arg[2] & 0xffff;
- if (status & BIT_0)
- npar_info->min_tx_bw = MSW(cmd.rsp.arg[2]);
- if (status & BIT_1)
- npar_info->max_tx_bw = LSW(cmd.rsp.arg[3]);
- if (status & BIT_2)
- npar_info->max_tx_ques = MSW(cmd.rsp.arg[3]);
- if (status & BIT_3)
- npar_info->max_tx_mac_filters = LSW(cmd.rsp.arg[4]);
- if (status & BIT_4)
- npar_info->max_rx_mcast_mac_filters = MSW(cmd.rsp.arg[4]);
- if (status & BIT_5)
- npar_info->max_rx_ucast_mac_filters = LSW(cmd.rsp.arg[5]);
- if (status & BIT_6)
- npar_info->max_rx_ip_addr = MSW(cmd.rsp.arg[5]);
- if (status & BIT_7)
- npar_info->max_rx_lro_flow = LSW(cmd.rsp.arg[6]);
- if (status & BIT_8)
- npar_info->max_rx_status_rings = MSW(cmd.rsp.arg[6]);
- if (status & BIT_9)
- npar_info->max_rx_buf_rings = LSW(cmd.rsp.arg[7]);
- npar_info->max_rx_ques = MSW(cmd.rsp.arg[7]);
- npar_info->max_tx_vlan_keys = LSW(cmd.rsp.arg[8]);
- npar_info->max_local_ipv6_addrs = MSW(cmd.rsp.arg[8]);
- npar_info->max_remote_ipv6_addrs = LSW(cmd.rsp.arg[9]);
- dev_info(dev, "\n\tmin_tx_bw: %d, max_tx_bw: %d max_tx_ques: %d,\n"
- "\tmax_tx_mac_filters: %d max_rx_mcast_mac_filters: %d,\n"
- "\tmax_rx_ucast_mac_filters: 0x%x, max_rx_ip_addr: %d,\n"
- "\tmax_rx_lro_flow: %d max_rx_status_rings: %d,\n"
- "\tmax_rx_buf_rings: %d, max_rx_ques: %d, max_tx_vlan_keys %d\n"
- "\tlocal_ipv6_addr: %d, remote_ipv6_addr: %d\n",
- npar_info->min_tx_bw, npar_info->max_tx_bw,
- npar_info->max_tx_ques, npar_info->max_tx_mac_filters,
- npar_info->max_rx_mcast_mac_filters,
- npar_info->max_rx_ucast_mac_filters, npar_info->max_rx_ip_addr,
- npar_info->max_rx_lro_flow, npar_info->max_rx_status_rings,
- npar_info->max_rx_buf_rings, npar_info->max_rx_ques,
- npar_info->max_tx_vlan_keys, npar_info->max_local_ipv6_addrs,
- npar_info->max_remote_ipv6_addrs);
- qlcnic_free_mbx_args(&cmd);
- return err;
- }
- static int qlcnic_sriov_set_pvid_mode(struct qlcnic_adapter *adapter,
- struct qlcnic_cmd_args *cmd)
- {
- adapter->rx_pvid = MSW(cmd->rsp.arg[1]) & 0xffff;
- adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
- return 0;
- }
- static int qlcnic_sriov_set_guest_vlan_mode(struct qlcnic_adapter *adapter,
- struct qlcnic_cmd_args *cmd)
- {
- struct qlcnic_sriov *sriov = adapter->ahw->sriov;
- int i, num_vlans;
- u16 *vlans;
- if (sriov->allowed_vlans)
- return 0;
- sriov->any_vlan = cmd->rsp.arg[2] & 0xf;
- sriov->num_allowed_vlans = cmd->rsp.arg[2] >> 16;
- dev_info(&adapter->pdev->dev, "Number of allowed Guest VLANs = %d\n",
- sriov->num_allowed_vlans);
- qlcnic_sriov_alloc_vlans(adapter);
- if (!sriov->any_vlan)
- return 0;
- num_vlans = sriov->num_allowed_vlans;
- sriov->allowed_vlans = kzalloc(sizeof(u16) * num_vlans, GFP_KERNEL);
- if (!sriov->allowed_vlans)
- return -ENOMEM;
- vlans = (u16 *)&cmd->rsp.arg[3];
- for (i = 0; i < num_vlans; i++)
- sriov->allowed_vlans[i] = vlans[i];
- return 0;
- }
- static int qlcnic_sriov_get_vf_acl(struct qlcnic_adapter *adapter)
- {
- struct qlcnic_sriov *sriov = adapter->ahw->sriov;
- struct qlcnic_cmd_args cmd;
- int ret = 0;
- memset(&cmd, 0, sizeof(cmd));
- ret = qlcnic_sriov_alloc_bc_mbx_args(&cmd, QLCNIC_BC_CMD_GET_ACL);
- if (ret)
- return ret;
- ret = qlcnic_issue_cmd(adapter, &cmd);
- if (ret) {
- dev_err(&adapter->pdev->dev, "Failed to get ACL, err=%d\n",
- ret);
- } else {
- sriov->vlan_mode = cmd.rsp.arg[1] & 0x3;
- switch (sriov->vlan_mode) {
- case QLC_GUEST_VLAN_MODE:
- ret = qlcnic_sriov_set_guest_vlan_mode(adapter, &cmd);
- break;
- case QLC_PVID_MODE:
- ret = qlcnic_sriov_set_pvid_mode(adapter, &cmd);
- break;
- }
- }
- qlcnic_free_mbx_args(&cmd);
- return ret;
- }
- static int qlcnic_sriov_vf_init_driver(struct qlcnic_adapter *adapter)
- {
- struct qlcnic_hardware_context *ahw = adapter->ahw;
- struct qlcnic_info nic_info;
- int err;
- err = qlcnic_sriov_get_vf_vport_info(adapter, &nic_info, 0);
- if (err)
- return err;
- ahw->max_mc_count = nic_info.max_rx_mcast_mac_filters;
- err = qlcnic_get_nic_info(adapter, &nic_info, ahw->pci_func);
- if (err)
- return -EIO;
- if (qlcnic_83xx_get_port_info(adapter))
- return -EIO;
- qlcnic_sriov_vf_cfg_buff_desc(adapter);
- adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
- dev_info(&adapter->pdev->dev, "HAL Version: %d\n",
- adapter->ahw->fw_hal_version);
- ahw->physical_port = (u8) nic_info.phys_port;
- ahw->switch_mode = nic_info.switch_mode;
- ahw->max_mtu = nic_info.max_mtu;
- ahw->op_mode = nic_info.op_mode;
- ahw->capabilities = nic_info.capabilities;
- return 0;
- }
- static int qlcnic_sriov_setup_vf(struct qlcnic_adapter *adapter,
- int pci_using_dac)
- {
- int err;
- adapter->flags |= QLCNIC_VLAN_FILTERING;
- adapter->ahw->total_nic_func = 1;
- INIT_LIST_HEAD(&adapter->vf_mc_list);
- if (!qlcnic_use_msi_x && !!qlcnic_use_msi)
- dev_warn(&adapter->pdev->dev,
- "Device does not support MSI interrupts\n");
- /* compute and set default and max tx/sds rings */
- qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
- qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
- err = qlcnic_setup_intr(adapter);
- if (err) {
- dev_err(&adapter->pdev->dev, "Failed to setup interrupt\n");
- goto err_out_disable_msi;
- }
- err = qlcnic_83xx_setup_mbx_intr(adapter);
- if (err)
- goto err_out_disable_msi;
- err = qlcnic_sriov_init(adapter, 1);
- if (err)
- goto err_out_disable_mbx_intr;
- err = qlcnic_sriov_cfg_bc_intr(adapter, 1);
- if (err)
- goto err_out_cleanup_sriov;
- err = qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_INIT);
- if (err)
- goto err_out_disable_bc_intr;
- err = qlcnic_sriov_vf_init_driver(adapter);
- if (err)
- goto err_out_send_channel_term;
- err = qlcnic_sriov_get_vf_acl(adapter);
- if (err)
- goto err_out_send_channel_term;
- err = qlcnic_setup_netdev(adapter, adapter->netdev, pci_using_dac);
- if (err)
- goto err_out_send_channel_term;
- pci_set_drvdata(adapter->pdev, adapter);
- dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
- adapter->netdev->name);
- qlcnic_schedule_work(adapter, qlcnic_sriov_vf_poll_dev_state,
- adapter->ahw->idc.delay);
- return 0;
- err_out_send_channel_term:
- qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM);
- err_out_disable_bc_intr:
- qlcnic_sriov_cfg_bc_intr(adapter, 0);
- err_out_cleanup_sriov:
- __qlcnic_sriov_cleanup(adapter);
- err_out_disable_mbx_intr:
- qlcnic_83xx_free_mbx_intr(adapter);
- err_out_disable_msi:
- qlcnic_teardown_intr(adapter);
- return err;
- }
- static int qlcnic_sriov_check_dev_ready(struct qlcnic_adapter *adapter)
- {
- u32 state;
- do {
- msleep(20);
- if (++adapter->fw_fail_cnt > QLC_BC_CMD_MAX_RETRY_CNT)
- return -EIO;
- state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE);
- } while (state != QLC_83XX_IDC_DEV_READY);
- return 0;
- }
- int qlcnic_sriov_vf_init(struct qlcnic_adapter *adapter, int pci_using_dac)
- {
- struct qlcnic_hardware_context *ahw = adapter->ahw;
- int err;
- set_bit(QLC_83XX_MODULE_LOADED, &ahw->idc.status);
- ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY;
- ahw->reset_context = 0;
- adapter->fw_fail_cnt = 0;
- ahw->msix_supported = 1;
- adapter->need_fw_reset = 0;
- adapter->flags |= QLCNIC_TX_INTR_SHARED;
- err = qlcnic_sriov_check_dev_ready(adapter);
- if (err)
- return err;
- err = qlcnic_sriov_setup_vf(adapter, pci_using_dac);
- if (err)
- return err;
- if (qlcnic_read_mac_addr(adapter))
- dev_warn(&adapter->pdev->dev, "failed to read mac addr\n");
- INIT_DELAYED_WORK(&adapter->idc_aen_work, qlcnic_83xx_idc_aen_work);
- clear_bit(__QLCNIC_RESETTING, &adapter->state);
- return 0;
- }
- void qlcnic_sriov_vf_set_ops(struct qlcnic_adapter *adapter)
- {
- struct qlcnic_hardware_context *ahw = adapter->ahw;
- ahw->op_mode = QLCNIC_SRIOV_VF_FUNC;
- dev_info(&adapter->pdev->dev,
- "HAL Version: %d Non Privileged SRIOV function\n",
- ahw->fw_hal_version);
- adapter->nic_ops = &qlcnic_sriov_vf_ops;
- set_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state);
- return;
- }
- void qlcnic_sriov_vf_register_map(struct qlcnic_hardware_context *ahw)
- {
- ahw->hw_ops = &qlcnic_sriov_vf_hw_ops;
- ahw->reg_tbl = (u32 *)qlcnic_83xx_reg_tbl;
- ahw->ext_reg_tbl = (u32 *)qlcnic_83xx_ext_reg_tbl;
- }
- static u32 qlcnic_sriov_get_bc_paysize(u32 real_pay_size, u8 curr_frag)
- {
- u32 pay_size;
- pay_size = real_pay_size / ((curr_frag + 1) * QLC_BC_PAYLOAD_SZ);
- if (pay_size)
- pay_size = QLC_BC_PAYLOAD_SZ;
- else
- pay_size = real_pay_size % QLC_BC_PAYLOAD_SZ;
- return pay_size;
- }
- int qlcnic_sriov_func_to_index(struct qlcnic_adapter *adapter, u8 pci_func)
- {
- struct qlcnic_vf_info *vf_info = adapter->ahw->sriov->vf_info;
- u8 i;
- if (qlcnic_sriov_vf_check(adapter))
- return 0;
- for (i = 0; i < adapter->ahw->sriov->num_vfs; i++) {
- if (vf_info[i].pci_func == pci_func)
- return i;
- }
- return -EINVAL;
- }
- static inline int qlcnic_sriov_alloc_bc_trans(struct qlcnic_bc_trans **trans)
- {
- *trans = kzalloc(sizeof(struct qlcnic_bc_trans), GFP_ATOMIC);
- if (!*trans)
- return -ENOMEM;
- init_completion(&(*trans)->resp_cmpl);
- return 0;
- }
- static inline int qlcnic_sriov_alloc_bc_msg(struct qlcnic_bc_hdr **hdr,
- u32 size)
- {
- *hdr = kzalloc(sizeof(struct qlcnic_bc_hdr) * size, GFP_ATOMIC);
- if (!*hdr)
- return -ENOMEM;
- return 0;
- }
- static int qlcnic_sriov_alloc_bc_mbx_args(struct qlcnic_cmd_args *mbx, u32 type)
- {
- const struct qlcnic_mailbox_metadata *mbx_tbl;
- int i, size;
- mbx_tbl = qlcnic_sriov_bc_mbx_tbl;
- size = ARRAY_SIZE(qlcnic_sriov_bc_mbx_tbl);
- for (i = 0; i < size; i++) {
- if (type == mbx_tbl[i].cmd) {
- mbx->op_type = QLC_BC_CMD;
- mbx->req.num = mbx_tbl[i].in_args;
- mbx->rsp.num = mbx_tbl[i].out_args;
- mbx->req.arg = kcalloc(mbx->req.num, sizeof(u32),
- GFP_ATOMIC);
- if (!mbx->req.arg)
- return -ENOMEM;
- mbx->rsp.arg = kcalloc(mbx->rsp.num, sizeof(u32),
- GFP_ATOMIC);
- if (!mbx->rsp.arg) {
- kfree(mbx->req.arg);
- mbx->req.arg = NULL;
- return -ENOMEM;
- }
- mbx->req.arg[0] = (type | (mbx->req.num << 16) |
- (3 << 29));
- mbx->rsp.arg[0] = (type & 0xffff) | mbx->rsp.num << 16;
- return 0;
- }
- }
- return -EINVAL;
- }
- static int qlcnic_sriov_prepare_bc_hdr(struct qlcnic_bc_trans *trans,
- struct qlcnic_cmd_args *cmd,
- u16 seq, u8 msg_type)
- {
- struct qlcnic_bc_hdr *hdr;
- int i;
- u32 num_regs, bc_pay_sz;
- u16 remainder;
- u8 cmd_op, num_frags, t_num_frags;
- bc_pay_sz = QLC_BC_PAYLOAD_SZ;
- if (msg_type == QLC_BC_COMMAND) {
- trans->req_pay = (struct qlcnic_bc_payload *)cmd->req.arg;
- trans->rsp_pay = (struct qlcnic_bc_payload *)cmd->rsp.arg;
- num_regs = cmd->req.num;
- trans->req_pay_size = (num_regs * 4);
- num_regs = cmd->rsp.num;
- trans->rsp_pay_size = (num_regs * 4);
- cmd_op = cmd->req.arg[0] & 0xff;
- remainder = (trans->req_pay_size) % (bc_pay_sz);
- num_frags = (trans->req_pay_size) / (bc_pay_sz);
- if (remainder)
- num_frags++;
- t_num_frags = num_frags;
- if (qlcnic_sriov_alloc_bc_msg(&trans->req_hdr, num_frags))
- return -ENOMEM;
- remainder = (trans->rsp_pay_size) % (bc_pay_sz);
- num_frags = (trans->rsp_pay_size) / (bc_pay_sz);
- if (remainder)
- num_frags++;
- if (qlcnic_sriov_alloc_bc_msg(&trans->rsp_hdr, num_frags))
- return -ENOMEM;
- num_frags = t_num_frags;
- hdr = trans->req_hdr;
- } else {
- cmd->req.arg = (u32 *)trans->req_pay;
- cmd->rsp.arg = (u32 *)trans->rsp_pay;
- cmd_op = cmd->req.arg[0] & 0xff;
- cmd->cmd_op = cmd_op;
- remainder = (trans->rsp_pay_size) % (bc_pay_sz);
- num_frags = (trans->rsp_pay_size) / (bc_pay_sz);
- if (remainder)
- num_frags++;
- cmd->req.num = trans->req_pay_size / 4;
- cmd->rsp.num = trans->rsp_pay_size / 4;
- hdr = trans->rsp_hdr;
- cmd->op_type = trans->req_hdr->op_type;
- }
- trans->trans_id = seq;
- trans->cmd_id = cmd_op;
- for (i = 0; i < num_frags; i++) {
- hdr[i].version = 2;
- hdr[i].msg_type = msg_type;
- hdr[i].op_type = cmd->op_type;
- hdr[i].num_cmds = 1;
- hdr[i].num_frags = num_frags;
- hdr[i].frag_num = i + 1;
- hdr[i].cmd_op = cmd_op;
- hdr[i].seq_id = seq;
- }
- return 0;
- }
- static void qlcnic_sriov_cleanup_transaction(struct qlcnic_bc_trans *trans)
- {
- if (!trans)
- return;
- kfree(trans->req_hdr);
- kfree(trans->rsp_hdr);
- kfree(trans);
- }
- static int qlcnic_sriov_clear_trans(struct qlcnic_vf_info *vf,
- struct qlcnic_bc_trans *trans, u8 type)
- {
- struct qlcnic_trans_list *t_list;
- unsigned long flags;
- int ret = 0;
- if (type == QLC_BC_RESPONSE) {
- t_list = &vf->rcv_act;
- spin_lock_irqsave(&t_list->lock, flags);
- t_list->count--;
- list_del(&trans->list);
- if (t_list->count > 0)
- ret = 1;
- spin_unlock_irqrestore(&t_list->lock, flags);
- }
- if (type == QLC_BC_COMMAND) {
- while (test_and_set_bit(QLC_BC_VF_SEND, &vf->state))
- msleep(100);
- vf->send_cmd = NULL;
- clear_bit(QLC_BC_VF_SEND, &vf->state);
- }
- return ret;
- }
- static void qlcnic_sriov_schedule_bc_cmd(struct qlcnic_sriov *sriov,
- struct qlcnic_vf_info *vf,
- work_func_t func)
- {
- if (test_bit(QLC_BC_VF_FLR, &vf->state) ||
- vf->adapter->need_fw_reset)
- return;
- queue_work(sriov->bc.bc_trans_wq, &vf->trans_work);
- }
- static inline void qlcnic_sriov_wait_for_resp(struct qlcnic_bc_trans *trans)
- {
- struct completion *cmpl = &trans->resp_cmpl;
- if (wait_for_completion_timeout(cmpl, QLC_MBOX_RESP_TIMEOUT))
- trans->trans_state = QLC_END;
- else
- trans->trans_state = QLC_ABORT;
- return;
- }
- static void qlcnic_sriov_handle_multi_frags(struct qlcnic_bc_trans *trans,
- u8 type)
- {
- if (type == QLC_BC_RESPONSE) {
- trans->curr_rsp_frag++;
- if (trans->curr_rsp_frag < trans->rsp_hdr->num_frags)
- trans->trans_state = QLC_INIT;
- else
- trans->trans_state = QLC_END;
- } else {
- trans->curr_req_frag++;
- if (trans->curr_req_frag < trans->req_hdr->num_frags)
- trans->trans_state = QLC_INIT;
- else
- trans->trans_state = QLC_WAIT_FOR_RESP;
- }
- }
- static void qlcnic_sriov_wait_for_channel_free(struct qlcnic_bc_trans *trans,
- u8 type)
- {
- struct qlcnic_vf_info *vf = trans->vf;
- struct completion *cmpl = &vf->ch_free_cmpl;
- if (!wait_for_completion_timeout(cmpl, QLC_MBOX_CH_FREE_TIMEOUT)) {
- trans->trans_state = QLC_ABORT;
- return;
- }
- clear_bit(QLC_BC_VF_CHANNEL, &vf->state);
- qlcnic_sriov_handle_multi_frags(trans, type);
- }
- static void qlcnic_sriov_pull_bc_msg(struct qlcnic_adapter *adapter,
- u32 *hdr, u32 *pay, u32 size)
- {
- struct qlcnic_hardware_context *ahw = adapter->ahw;
- u32 fw_mbx;
- u8 i, max = 2, hdr_size, j;
- hdr_size = (sizeof(struct qlcnic_bc_hdr) / sizeof(u32));
- max = (size / sizeof(u32)) + hdr_size;
- fw_mbx = readl(QLCNIC_MBX_FW(ahw, 0));
- for (i = 2, j = 0; j < hdr_size; i++, j++)
- *(hdr++) = readl(QLCNIC_MBX_FW(ahw, i));
- for (; j < max; i++, j++)
- *(pay++) = readl(QLCNIC_MBX_FW(ahw, i));
- }
- static int __qlcnic_sriov_issue_bc_post(struct qlcnic_vf_info *vf)
- {
- int ret = -EBUSY;
- u32 timeout = 10000;
- do {
- if (!test_and_set_bit(QLC_BC_VF_CHANNEL, &vf->state)) {
- ret = 0;
- break;
- }
- mdelay(1);
- } while (--timeout);
- return ret;
- }
- static int qlcnic_sriov_issue_bc_post(struct qlcnic_bc_trans *trans, u8 type)
- {
- struct qlcnic_vf_info *vf = trans->vf;
- u32 pay_size, hdr_size;
- u32 *hdr, *pay;
- int ret;
- u8 pci_func = trans->func_id;
- if (__qlcnic_sriov_issue_bc_post(vf))
- return -EBUSY;
- if (type == QLC_BC_COMMAND) {
- hdr = (u32 *)(trans->req_hdr + trans->curr_req_frag);
- pay = (u32 *)(trans->req_pay + trans->curr_req_frag);
- hdr_size = (sizeof(struct qlcnic_bc_hdr) / sizeof(u32));
- pay_size = qlcnic_sriov_get_bc_paysize(trans->req_pay_size,
- trans->curr_req_frag);
- pay_size = (pay_size / sizeof(u32));
- } else {
- hdr = (u32 *)(trans->rsp_hdr + trans->curr_rsp_frag);
- pay = (u32 *)(trans->rsp_pay + trans->curr_rsp_frag);
- hdr_size = (sizeof(struct qlcnic_bc_hdr) / sizeof(u32));
- pay_size = qlcnic_sriov_get_bc_paysize(trans->rsp_pay_size,
- trans->curr_rsp_frag);
- pay_size = (pay_size / sizeof(u32));
- }
- ret = qlcnic_sriov_post_bc_msg(vf->adapter, hdr, pay,
- pci_func, pay_size);
- return ret;
- }
- static int __qlcnic_sriov_send_bc_msg(struct qlcnic_bc_trans *trans,
- struct qlcnic_vf_info *vf, u8 type)
- {
- bool flag = true;
- int err = -EIO;
- while (flag) {
- if (test_bit(QLC_BC_VF_FLR, &vf->state) ||
- vf->adapter->need_fw_reset)
- trans->trans_state = QLC_ABORT;
- switch (trans->trans_state) {
- case QLC_INIT:
- trans->trans_state = QLC_WAIT_FOR_CHANNEL_FREE;
- if (qlcnic_sriov_issue_bc_post(trans, type))
- trans->trans_state = QLC_ABORT;
- break;
- case QLC_WAIT_FOR_CHANNEL_FREE:
- qlcnic_sriov_wait_for_channel_free(trans, type);
- break;
- case QLC_WAIT_FOR_RESP:
- qlcnic_sriov_wait_for_resp(trans);
- break;
- case QLC_END:
- err = 0;
- flag = false;
- break;
- case QLC_ABORT:
- err = -EIO;
- flag = false;
- clear_bit(QLC_BC_VF_CHANNEL, &vf->state);
- break;
- default:
- err = -EIO;
- flag = false;
- }
- }
- return err;
- }
- static int qlcnic_sriov_send_bc_cmd(struct qlcnic_adapter *adapter,
- struct qlcnic_bc_trans *trans, int pci_func)
- {
- struct qlcnic_vf_info *vf;
- int err, index = qlcnic_sriov_func_to_index(adapter, pci_func);
- if (index < 0)
- return -EIO;
- vf = &adapter->ahw->sriov->vf_info[index];
- trans->vf = vf;
- trans->func_id = pci_func;
- if (!test_bit(QLC_BC_VF_STATE, &vf->state)) {
- if (qlcnic_sriov_pf_check(adapter))
- return -EIO;
- if (qlcnic_sriov_vf_check(adapter) &&
- trans->cmd_id != QLCNIC_BC_CMD_CHANNEL_INIT)
- return -EIO;
- }
- mutex_lock(&vf->send_cmd_lock);
- vf->send_cmd = trans;
- err = __qlcnic_sriov_send_bc_msg(trans, vf, QLC_BC_COMMAND);
- qlcnic_sriov_clear_trans(vf, trans, QLC_BC_COMMAND);
- mutex_unlock(&vf->send_cmd_lock);
- return err;
- }
- static void __qlcnic_sriov_process_bc_cmd(struct qlcnic_adapter *adapter,
- struct qlcnic_bc_trans *trans,
- struct qlcnic_cmd_args *cmd)
- {
- #ifdef CONFIG_QLCNIC_SRIOV
- if (qlcnic_sriov_pf_check(adapter)) {
- qlcnic_sriov_pf_process_bc_cmd(adapter, trans, cmd);
- return;
- }
- #endif
- cmd->rsp.arg[0] |= (0x9 << 25);
- return;
- }
- static void qlcnic_sriov_process_bc_cmd(struct work_struct *work)
- {
- struct qlcnic_vf_info *vf = container_of(work, struct qlcnic_vf_info,
- trans_work);
- struct qlcnic_bc_trans *trans = NULL;
- struct qlcnic_adapter *adapter = vf->adapter;
- struct qlcnic_cmd_args cmd;
- u8 req;
- if (adapter->need_fw_reset)
- return;
- if (test_bit(QLC_BC_VF_FLR, &vf->state))
- return;
- memset(&cmd, 0, sizeof(struct qlcnic_cmd_args));
- trans = list_first_entry(&vf->rcv_act.wait_list,
- struct qlcnic_bc_trans, list);
- adapter = vf->adapter;
- if (qlcnic_sriov_prepare_bc_hdr(trans, &cmd, trans->req_hdr->seq_id,
- QLC_BC_RESPONSE))
- goto cleanup_trans;
- __qlcnic_sriov_process_bc_cmd(adapter, trans, &cmd);
- trans->trans_state = QLC_INIT;
- __qlcnic_sriov_send_bc_msg(trans, vf, QLC_BC_RESPONSE);
- cleanup_trans:
- qlcnic_free_mbx_args(&cmd);
- req = qlcnic_sriov_clear_trans(vf, trans, QLC_BC_RESPONSE);
- qlcnic_sriov_cleanup_transaction(trans);
- if (req)
- qlcnic_sriov_schedule_bc_cmd(adapter->ahw->sriov, vf,
- qlcnic_sriov_process_bc_cmd);
- }
- static void qlcnic_sriov_handle_bc_resp(struct qlcnic_bc_hdr *hdr,
- struct qlcnic_vf_info *vf)
- {
- struct qlcnic_bc_trans *trans;
- u32 pay_size;
- if (test_and_set_bit(QLC_BC_VF_SEND, &vf->state))
- return;
- trans = vf->send_cmd;
- if (trans == NULL)
- goto clear_send;
- if (trans->trans_id != hdr->seq_id)
- goto clear_send;
- pay_size = qlcnic_sriov_get_bc_paysize(trans->rsp_pay_size,
- trans->curr_rsp_frag);
- qlcnic_sriov_pull_bc_msg(vf->adapter,
- (u32 *)(trans->rsp_hdr + trans->curr_rsp_frag),
- (u32 *)(trans->rsp_pay + trans->curr_rsp_frag),
- pay_size);
- if (++trans->curr_rsp_frag < trans->rsp_hdr->num_frags)
- goto clear_send;
- complete(&trans->resp_cmpl);
- clear_send:
- clear_bit(QLC_BC_VF_SEND, &vf->state);
- }
- int __qlcnic_sriov_add_act_list(struct qlcnic_sriov *sriov,
- struct qlcnic_vf_info *vf,
- struct qlcnic_bc_trans *trans)
- {
- struct qlcnic_trans_list *t_list = &vf->rcv_act;
- t_list->count++;
- list_add_tail(&trans->list, &t_list->wait_list);
- if (t_list->count == 1)
- qlcnic_sriov_schedule_bc_cmd(sriov, vf,
- qlcnic_sriov_process_bc_cmd);
- return 0;
- }
- static int qlcnic_sriov_add_act_list(struct qlcnic_sriov *sriov,
- struct qlcnic_vf_info *vf,
- struct qlcnic_bc_trans *trans)
- {
- struct qlcnic_trans_list *t_list = &vf->rcv_act;
- spin_lock(&t_list->lock);
- __qlcnic_sriov_add_act_list(sriov, vf, trans);
- spin_unlock(&t_list->lock);
- return 0;
- }
- static void qlcnic_sriov_handle_pending_trans(struct qlcnic_sriov *sriov,
- struct qlcnic_vf_info *vf,
- struct qlcnic_bc_hdr *hdr)
- {
- struct qlcnic_bc_trans *trans = NULL;
- struct list_head *node;
- u32 pay_size, curr_frag;
- u8 found = 0, active = 0;
- spin_lock(&vf->rcv_pend.lock);
- if (vf->rcv_pend.count > 0) {
- list_for_each(node, &vf->rcv_pend.wait_list) {
- trans = list_entry(node, struct qlcnic_bc_trans, list);
- if (trans->trans_id == hdr->seq_id) {
- found = 1;
- break;
- }
- }
- }
- if (found) {
- curr_frag = trans->curr_req_frag;
- pay_size = qlcnic_sriov_get_bc_paysize(trans->req_pay_size,
- curr_frag);
- qlcnic_sriov_pull_bc_msg(vf->adapter,
- (u32 *)(trans->req_hdr + curr_frag),
- (u32 *)(trans->req_pay + curr_frag),
- pay_size);
- trans->curr_req_frag++;
- if (trans->curr_req_frag >= hdr->num_frags) {
- vf->rcv_pend.count--;
- list_del(&trans->list);
- active = 1;
- }
- }
- spin_unlock(&vf->rcv_pend.lock);
- if (active)
- if (qlcnic_sriov_add_act_list(sriov, vf, trans))
- qlcnic_sriov_cleanup_transaction(trans);
- return;
- }
- static void qlcnic_sriov_handle_bc_cmd(struct qlcnic_sriov *sriov,
- struct qlcnic_bc_hdr *hdr,
- struct qlcnic_vf_info *vf)
- {
- struct qlcnic_bc_trans *trans;
- struct qlcnic_adapter *adapter = vf->adapter;
- struct qlcnic_cmd_args cmd;
- u32 pay_size;
- int err;
- u8 cmd_op;
- if (adapter->need_fw_reset)
- return;
- if (!test_bit(QLC_BC_VF_STATE, &vf->state) &&
- hdr->op_type != QLC_BC_CMD &&
- hdr->cmd_op != QLCNIC_BC_CMD_CHANNEL_INIT)
- return;
- if (hdr->frag_num > 1) {
- qlcnic_sriov_handle_pending_trans(sriov, vf, hdr);
- return;
- }
- memset(&cmd, 0, sizeof(struct qlcnic_cmd_args));
- cmd_op = hdr->cmd_op;
- if (qlcnic_sriov_alloc_bc_trans(&trans))
- return;
- if (hdr->op_type == QLC_BC_CMD)
- err = qlcnic_sriov_alloc_bc_mbx_args(&cmd, cmd_op);
- else
- err = qlcnic_alloc_mbx_args(&cmd, adapter, cmd_op);
- if (err) {
- qlcnic_sriov_cleanup_transaction(trans);
- return;
- }
- cmd.op_type = hdr->op_type;
- if (qlcnic_sriov_prepare_bc_hdr(trans, &cmd, hdr->seq_id,
- QLC_BC_COMMAND)) {
- qlcnic_free_mbx_args(&cmd);
- qlcnic_sriov_cleanup_transaction(trans);
- return;
- }
- pay_size = qlcnic_sriov_get_bc_paysize(trans->req_pay_size,
- trans->curr_req_frag);
- qlcnic_sriov_pull_bc_msg(vf->adapter,
- (u32 *)(trans->req_hdr + trans->curr_req_frag),
- (u32 *)(trans->req_pay + trans->curr_req_frag),
- pay_size);
- trans->func_id = vf->pci_func;
- trans->vf = vf;
- trans->trans_id = hdr->seq_id;
- trans->curr_req_frag++;
- if (qlcnic_sriov_soft_flr_check(adapter, trans, vf))
- return;
- if (trans->curr_req_frag == trans->req_hdr->num_frags) {
- if (qlcnic_sriov_add_act_list(sriov, vf, trans)) {
- qlcnic_free_mbx_args(&cmd);
- qlcnic_sriov_cleanup_transaction(trans);
- }
- } else {
- spin_lock(&vf->rcv_pend.lock);
- list_add_tail(&trans->list, &vf->rcv_pend.wait_list);
- vf->rcv_pend.count++;
- spin_unlock(&vf->rcv_pend.lock);
- }
- }
- static void qlcnic_sriov_handle_msg_event(struct qlcnic_sriov *sriov,
- struct qlcnic_vf_info *vf)
- {
- struct qlcnic_bc_hdr hdr;
- u32 *ptr = (u32 *)&hdr;
- u8 msg_type, i;
- for (i = 2; i < 6; i++)
- ptr[i - 2] = readl(QLCNIC_MBX_FW(vf->adapter->ahw, i));
- msg_type = hdr.msg_type;
- switch (msg_type) {
- case QLC_BC_COMMAND:
- qlcnic_sriov_handle_bc_cmd(sriov, &hdr, vf);
- break;
- case QLC_BC_RESPONSE:
- qlcnic_sriov_handle_bc_resp(&hdr, vf);
- break;
- }
- }
- static void qlcnic_sriov_handle_flr_event(struct qlcnic_sriov *sriov,
- struct qlcnic_vf_info *vf)
- {
- struct qlcnic_adapter *adapter = vf->adapter;
- if (qlcnic_sriov_pf_check(adapter))
- qlcnic_sriov_pf_handle_flr(sriov, vf);
- else
- dev_err(&adapter->pdev->dev,
- "Invalid event to VF. VF should not get FLR event\n");
- }
- void qlcnic_sriov_handle_bc_event(struct qlcnic_adapter *adapter, u32 event)
- {
- struct qlcnic_vf_info *vf;
- struct qlcnic_sriov *sriov;
- int index;
- u8 pci_func;
- sriov = adapter->ahw->sriov;
- pci_func = qlcnic_sriov_target_func_id(event);
- index = qlcnic_sriov_func_to_index(adapter, pci_func);
- if (index < 0)
- return;
- vf = &sriov->vf_info[index];
- vf->pci_func = pci_func;
- if (qlcnic_sriov_channel_free_check(event))
- complete(&vf->ch_free_cmpl);
- if (qlcnic_sriov_flr_check(event)) {
- qlcnic_sriov_handle_flr_event(sriov, vf);
- return;
- }
- if (qlcnic_sriov_bc_msg_check(event))
- qlcnic_sriov_handle_msg_event(sriov, vf);
- }
- int qlcnic_sriov_cfg_bc_intr(struct qlcnic_adapter *adapter, u8 enable)
- {
- struct qlcnic_cmd_args cmd;
- int err;
- if (!test_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state))
- return 0;
- if (qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_BC_EVENT_SETUP))
- return -ENOMEM;
- if (enable)
- cmd.req.arg[1] = (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7);
- err = qlcnic_83xx_issue_cmd(adapter, &cmd);
- if (err != QLCNIC_RCODE_SUCCESS) {
- dev_err(&adapter->pdev->dev,
- "Failed to %s bc events, err=%d\n",
- (enable ? "enable" : "disable"), err);
- }
- qlcnic_free_mbx_args(&cmd);
- return err;
- }
- static int qlcnic_sriov_retry_bc_cmd(struct qlcnic_adapter *adapter,
- struct qlcnic_bc_trans *trans)
- {
- u8 max = QLC_BC_CMD_MAX_RETRY_CNT;
- u32 state;
- state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE);
- if (state == QLC_83XX_IDC_DEV_READY) {
- msleep(20);
- clear_bit(QLC_BC_VF_CHANNEL, &trans->vf->state);
- trans->trans_state = QLC_INIT;
- if (++adapter->fw_fail_cnt > max)
- return -EIO;
- else
- return 0;
- }
- return -EIO;
- }
- static int __qlcnic_sriov_issue_cmd(struct qlcnic_adapter *adapter,
- struct qlcnic_cmd_args *cmd)
- {
- struct qlcnic_hardware_context *ahw = adapter->ahw;
- struct qlcnic_mailbox *mbx = ahw->mailbox;
- struct device *dev = &adapter->pdev->dev;
- struct qlcnic_bc_trans *trans;
- int err;
- u32 rsp_data, opcode, mbx_err_code, rsp;
- u16 seq = ++adapter->ahw->sriov->bc.trans_counter;
- u8 func = ahw->pci_func;
- rsp = qlcnic_sriov_alloc_bc_trans(&trans);
- if (rsp)
- goto free_cmd;
- rsp = qlcnic_sriov_prepare_bc_hdr(trans, cmd, seq, QLC_BC_COMMAND);
- if (rsp)
- goto cleanup_transaction;
- retry:
- if (!test_bit(QLC_83XX_MBX_READY, &mbx->status)) {
- rsp = -EIO;
- QLCDB(adapter, DRV, "MBX not Ready!(cmd 0x%x) for VF 0x%x\n",
- QLCNIC_MBX_RSP(cmd->req.arg[0]), func);
- goto err_out;
- }
- err = qlcnic_sriov_send_bc_cmd(adapter, trans, func);
- if (err) {
- dev_err(dev, "MBX command 0x%x timed out for VF %d\n",
- (cmd->req.arg[0] & 0xffff), func);
- rsp = QLCNIC_RCODE_TIMEOUT;
- /* After adapter reset PF driver may take some time to
- * respond to VF's request. Retry request till maximum retries.
- */
- if ((trans->req_hdr->cmd_op == QLCNIC_BC_CMD_CHANNEL_INIT) &&
- !qlcnic_sriov_retry_bc_cmd(adapter, trans))
- goto retry;
- goto err_out;
- }
- rsp_data = cmd->rsp.arg[0];
- mbx_err_code = QLCNIC_MBX_STATUS(rsp_data);
- opcode = QLCNIC_MBX_RSP(cmd->req.arg[0]);
- if ((mbx_err_code == QLCNIC_MBX_RSP_OK) ||
- (mbx_err_code == QLCNIC_MBX_PORT_RSP_OK)) {
- rsp = QLCNIC_RCODE_SUCCESS;
- } else {
- if (cmd->type == QLC_83XX_MBX_CMD_NO_WAIT) {
- rsp = QLCNIC_RCODE_SUCCESS;
- } else {
- rsp = mbx_err_code;
- if (!rsp)
- rsp = 1;
- dev_err(dev,
- "MBX command 0x%x failed with err:0x%x for VF %d\n",
- opcode, mbx_err_code, func);
- }
- }
- err_out:
- if (rsp == QLCNIC_RCODE_TIMEOUT) {
- ahw->reset_context = 1;
- adapter->need_fw_reset = 1;
- clear_bit(QLC_83XX_MBX_READY, &mbx->status);
- }
- cleanup_transaction:
- qlcnic_sriov_cleanup_transaction(trans);
- free_cmd:
- if (cmd->type == QLC_83XX_MBX_CMD_NO_WAIT) {
- qlcnic_free_mbx_args(cmd);
- kfree(cmd);
- }
- return rsp;
- }
- static int qlcnic_sriov_issue_cmd(struct qlcnic_adapter *adapter,
- struct qlcnic_cmd_args *cmd)
- {
- if (cmd->type == QLC_83XX_MBX_CMD_NO_WAIT)
- return qlcnic_sriov_async_issue_cmd(adapter, cmd);
- else
- return __qlcnic_sriov_issue_cmd(adapter, cmd);
- }
- static int qlcnic_sriov_channel_cfg_cmd(struct qlcnic_adapter *adapter, u8 cmd_op)
- {
- struct qlcnic_cmd_args cmd;
- struct qlcnic_vf_info *vf = &adapter->ahw->sriov->vf_info[0];
- int ret;
- memset(&cmd, 0, sizeof(cmd));
- if (qlcnic_sriov_alloc_bc_mbx_args(&cmd, cmd_op))
- return -ENOMEM;
- ret = qlcnic_issue_cmd(adapter, &cmd);
- if (ret) {
- dev_err(&adapter->pdev->dev,
- "Failed bc channel %s %d\n", cmd_op ? "term" : "init",
- ret);
- goto out;
- }
- cmd_op = (cmd.rsp.arg[0] & 0xff);
- if (cmd.rsp.arg[0] >> 25 == 2)
- return 2;
- if (cmd_op == QLCNIC_BC_CMD_CHANNEL_INIT)
- set_bit(QLC_BC_VF_STATE, &vf->state);
- else
- clear_bit(QLC_BC_VF_STATE, &vf->state);
- out:
- qlcnic_free_mbx_args(&cmd);
- return ret;
- }
- static void qlcnic_vf_add_mc_list(struct net_device *netdev, const u8 *mac,
- enum qlcnic_mac_type mac_type)
- {
- struct qlcnic_adapter *adapter = netdev_priv(netdev);
- struct qlcnic_sriov *sriov = adapter->ahw->sriov;
- struct qlcnic_vf_info *vf;
- u16 vlan_id;
- int i;
- vf = &adapter->ahw->sriov->vf_info[0];
- if (!qlcnic_sriov_check_any_vlan(vf)) {
- qlcnic_nic_add_mac(adapter, mac, 0, mac_type);
- } else {
- spin_lock(&vf->vlan_list_lock);
- for (i = 0; i < sriov->num_allowed_vlans; i++) {
- vlan_id = vf->sriov_vlans[i];
- if (vlan_id)
- qlcnic_nic_add_mac(adapter, mac, vlan_id,
- mac_type);
- }
- spin_unlock(&vf->vlan_list_lock);
- if (qlcnic_84xx_check(adapter))
- qlcnic_nic_add_mac(adapter, mac, 0, mac_type);
- }
- }
- void qlcnic_sriov_cleanup_async_list(struct qlcnic_back_channel *bc)
- {
- struct list_head *head = &bc->async_list;
- struct qlcnic_async_work_list *entry;
- flush_workqueue(bc->bc_async_wq);
- while (!list_empty(head)) {
- entry = list_entry(head->next, struct qlcnic_async_work_list,
- list);
- cancel_work_sync(&entry->work);
- list_del(&entry->list);
- kfree(entry);
- }
- }
- void qlcnic_sriov_vf_set_multi(struct net_device *netdev)
- {
- struct qlcnic_adapter *adapter = netdev_priv(netdev);
- struct qlcnic_hardware_context *ahw = adapter->ahw;
- static const u8 bcast_addr[ETH_ALEN] = {
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
- };
- struct netdev_hw_addr *ha;
- u32 mode = VPORT_MISS_MODE_DROP;
- if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
- return;
- if (netdev->flags & IFF_PROMISC) {
- if (!(adapter->flags & QLCNIC_PROMISC_DISABLED))
- mode = VPORT_MISS_MODE_ACCEPT_ALL;
- } else if ((netdev->flags & IFF_ALLMULTI) ||
- (netdev_mc_count(netdev) > ahw->max_mc_count)) {
- mode = VPORT_MISS_MODE_ACCEPT_MULTI;
- } else {
- qlcnic_vf_add_mc_list(netdev, bcast_addr, QLCNIC_BROADCAST_MAC);
- if (!netdev_mc_empty(netdev)) {
- qlcnic_flush_mcast_mac(adapter);
- netdev_for_each_mc_addr(ha, netdev)
- qlcnic_vf_add_mc_list(netdev, ha->addr,
- QLCNIC_MULTICAST_MAC);
- }
- }
- /* configure unicast MAC address, if there is not sufficient space
- * to store all the unicast addresses then enable promiscuous mode
- */
- if (netdev_uc_count(netdev) > ahw->max_uc_count) {
- mode = VPORT_MISS_MODE_ACCEPT_ALL;
- } else if (!netdev_uc_empty(netdev)) {
- netdev_for_each_uc_addr(ha, netdev)
- qlcnic_vf_add_mc_list(netdev, ha->addr,
- QLCNIC_UNICAST_MAC);
- }
- if (adapter->pdev->is_virtfn) {
- if (mode == VPORT_MISS_MODE_ACCEPT_ALL &&
- !adapter->fdb_mac_learn) {
- qlcnic_alloc_lb_filters_mem(adapter);
- adapter->drv_mac_learn = 1;
- adapter->rx_mac_learn = true;
- } else {
- adapter->drv_mac_learn = 0;
- adapter->rx_mac_learn = false;
- }
- }
- qlcnic_nic_set_promisc(adapter, mode);
- }
- static void qlcnic_sriov_handle_async_issue_cmd(struct work_struct *work)
- {
- struct qlcnic_async_work_list *entry;
- struct qlcnic_adapter *adapter;
- struct qlcnic_cmd_args *cmd;
- entry = container_of(work, struct qlcnic_async_work_list, work);
- adapter = entry->ptr;
- cmd = entry->cmd;
- __qlcnic_sriov_issue_cmd(adapter, cmd);
- return;
- }
- static struct qlcnic_async_work_list *
- qlcnic_sriov_get_free_node_async_work(struct qlcnic_back_channel *bc)
- {
- struct list_head *node;
- struct qlcnic_async_work_list *entry = NULL;
- u8 empty = 0;
- list_for_each(node, &bc->async_list) {
- entry = list_entry(node, struct qlcnic_async_work_list, list);
- if (!work_pending(&entry->work)) {
- empty = 1;
- break;
- }
- }
- if (!empty) {
- entry = kzalloc(sizeof(struct qlcnic_async_work_list),
- GFP_ATOMIC);
- if (entry == NULL)
- return NULL;
- list_add_tail(&entry->list, &bc->async_list);
- }
- return entry;
- }
- static void qlcnic_sriov_schedule_async_cmd(struct qlcnic_back_channel *bc,
- work_func_t func, void *data,
- struct qlcnic_cmd_args *cmd)
- {
- struct qlcnic_async_work_list *entry = NULL;
- entry = qlcnic_sriov_get_free_node_async_work(bc);
- if (!entry)
- return;
- entry->ptr = data;
- entry->cmd = cmd;
- INIT_WORK(&entry->work, func);
- queue_work(bc->bc_async_wq, &entry->work);
- }
- static int qlcnic_sriov_async_issue_cmd(struct qlcnic_adapter *adapter,
- struct qlcnic_cmd_args *cmd)
- {
- struct qlcnic_back_channel *bc = &adapter->ahw->sriov->bc;
- if (adapter->need_fw_reset)
- return -EIO;
- qlcnic_sriov_schedule_async_cmd(bc, qlcnic_sriov_handle_async_issue_cmd,
- adapter, cmd);
- return 0;
- }
- static int qlcnic_sriov_vf_reinit_driver(struct qlcnic_adapter *adapter)
- {
- int err;
- adapter->need_fw_reset = 0;
- qlcnic_83xx_reinit_mbx_work(adapter->ahw->mailbox);
- qlcnic_83xx_enable_mbx_interrupt(adapter);
- err = qlcnic_sriov_cfg_bc_intr(adapter, 1);
- if (err)
- return err;
- err = qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_INIT);
- if (err)
- goto err_out_cleanup_bc_intr;
- err = qlcnic_sriov_vf_init_driver(adapter);
- if (err)
- goto err_out_term_channel;
- return 0;
- err_out_term_channel:
- qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM);
- err_out_cleanup_bc_intr:
- qlcnic_sriov_cfg_bc_intr(adapter, 0);
- return err;
- }
- static void qlcnic_sriov_vf_attach(struct qlcnic_adapter *adapter)
- {
- struct net_device *netdev = adapter->netdev;
- if (netif_running(netdev)) {
- if (!qlcnic_up(adapter, netdev))
- qlcnic_restore_indev_addr(netdev, NETDEV_UP);
- }
- netif_device_attach(netdev);
- }
- static void qlcnic_sriov_vf_detach(struct qlcnic_adapter *adapter)
- {
- struct qlcnic_hardware_context *ahw = adapter->ahw;
- struct qlcnic_intrpt_config *intr_tbl = ahw->intr_tbl;
- struct net_device *netdev = adapter->netdev;
- u8 i, max_ints = ahw->num_msix - 1;
- netif_device_detach(netdev);
- qlcnic_83xx_detach_mailbox_work(adapter);
- qlcnic_83xx_disable_mbx_intr(adapter);
- if (netif_running(netdev))
- qlcnic_down(adapter, netdev);
- for (i = 0; i < max_ints; i++) {
- intr_tbl[i].id = i;
- intr_tbl[i].enabled = 0;
- intr_tbl[i].src = 0;
- }
- ahw->reset_context = 0;
- }
- static int qlcnic_sriov_vf_handle_dev_ready(struct qlcnic_adapter *adapter)
- {
- struct qlcnic_hardware_context *ahw = adapter->ahw;
- struct device *dev = &adapter->pdev->dev;
- struct qlc_83xx_idc *idc = &ahw->idc;
- u8 func = ahw->pci_func;
- u32 state;
- if ((idc->prev_state == QLC_83XX_IDC_DEV_NEED_RESET) ||
- (idc->prev_state == QLC_83XX_IDC_DEV_INIT)) {
- if (!qlcnic_sriov_vf_reinit_driver(adapter)) {
- qlcnic_sriov_vf_attach(adapter);
- adapter->fw_fail_cnt = 0;
- dev_info(dev,
- "%s: Reinitialization of VF 0x%x done after FW reset\n",
- __func__, func);
- } else {
- dev_err(dev,
- "%s: Reinitialization of VF 0x%x failed after FW reset\n",
- __func__, func);
- state = QLCRDX(ahw, QLC_83XX_IDC_DEV_STATE);
- dev_info(dev, "Current state 0x%x after FW reset\n",
- state);
- }
- }
- return 0;
- }
- static int qlcnic_sriov_vf_handle_context_reset(struct qlcnic_adapter *adapter)
- {
- struct qlcnic_hardware_context *ahw = adapter->ahw;
- struct qlcnic_mailbox *mbx = ahw->mailbox;
- struct device *dev = &adapter->pdev->dev;
- struct qlc_83xx_idc *idc = &ahw->idc;
- u8 func = ahw->pci_func;
- u32 state;
- adapter->reset_ctx_cnt++;
- /* Skip the context reset and check if FW is hung */
- if (adapter->reset_ctx_cnt < 3) {
- adapter->need_fw_reset = 1;
- clear_bit(QLC_83XX_MBX_READY, &mbx->status);
- dev_info(dev,
- "Resetting context, wait here to check if FW is in failed state\n");
- return 0;
- }
- /* Check if number of resets exceed the threshold.
- * If it exceeds the threshold just fail the VF.
- */
- if (adapter->reset_ctx_cnt > QLC_83XX_VF_RESET_FAIL_THRESH) {
- clear_bit(QLC_83XX_MODULE_LOADED, &idc->status);
- adapter->tx_timeo_cnt = 0;
- adapter->fw_fail_cnt = 0;
- adapter->reset_ctx_cnt = 0;
- qlcnic_sriov_vf_detach(adapter);
- dev_err(dev,
- "Device context resets have exceeded the threshold, device interface will be shutdown\n");
- return -EIO;
- }
- dev_info(dev, "Resetting context of VF 0x%x\n", func);
- dev_info(dev, "%s: Context reset count %d for VF 0x%x\n",
- __func__, adapter->reset_ctx_cnt, func);
- set_bit(__QLCNIC_RESETTING, &adapter->state);
- adapter->need_fw_reset = 1;
- clear_bit(QLC_83XX_MBX_READY, &mbx->status);
- qlcnic_sriov_vf_detach(adapter);
- adapter->need_fw_reset = 0;
- if (!qlcnic_sriov_vf_reinit_driver(adapter)) {
- qlcnic_sriov_vf_attach(adapter);
- adapter->tx_timeo_cnt = 0;
- adapter->reset_ctx_cnt = 0;
- adapter->fw_fail_cnt = 0;
- dev_info(dev, "Done resetting context for VF 0x%x\n", func);
- } else {
- dev_err(dev, "%s: Reinitialization of VF 0x%x failed\n",
- __func__, func);
- state = QLCRDX(ahw, QLC_83XX_IDC_DEV_STATE);
- dev_info(dev, "%s: Current state 0x%x\n", __func__, state);
- }
- return 0;
- }
- static int qlcnic_sriov_vf_idc_ready_state(struct qlcnic_adapter *adapter)
- {
- struct qlcnic_hardware_context *ahw = adapter->ahw;
- int ret = 0;
- if (ahw->idc.prev_state != QLC_83XX_IDC_DEV_READY)
- ret = qlcnic_sriov_vf_handle_dev_ready(adapter);
- else if (ahw->reset_context)
- ret = qlcnic_sriov_vf_handle_context_reset(adapter);
- clear_bit(__QLCNIC_RESETTING, &adapter->state);
- return ret;
- }
- static int qlcnic_sriov_vf_idc_failed_state(struct qlcnic_adapter *adapter)
- {
- struct qlc_83xx_idc *idc = &adapter->ahw->idc;
- dev_err(&adapter->pdev->dev, "Device is in failed state\n");
- if (idc->prev_state == QLC_83XX_IDC_DEV_READY)
- qlcnic_sriov_vf_detach(adapter);
- clear_bit(QLC_83XX_MODULE_LOADED, &idc->status);
- clear_bit(__QLCNIC_RESETTING, &adapter->state);
- return -EIO;
- }
- static int
- qlcnic_sriov_vf_idc_need_quiescent_state(struct qlcnic_adapter *adapter)
- {
- struct qlcnic_mailbox *mbx = adapter->ahw->mailbox;
- struct qlc_83xx_idc *idc = &adapter->ahw->idc;
- dev_info(&adapter->pdev->dev, "Device is in quiescent state\n");
- if (idc->prev_state == QLC_83XX_IDC_DEV_READY) {
- set_bit(__QLCNIC_RESETTING, &adapter->state);
- adapter->tx_timeo_cnt = 0;
- adapter->reset_ctx_cnt = 0;
- clear_bit(QLC_83XX_MBX_READY, &mbx->status);
- qlcnic_sriov_vf_detach(adapter);
- }
- return 0;
- }
- static int qlcnic_sriov_vf_idc_init_reset_state(struct qlcnic_adapter *adapter)
- {
- struct qlcnic_mailbox *mbx = adapter->ahw->mailbox;
- struct qlc_83xx_idc *idc = &adapter->ahw->idc;
- u8 func = adapter->ahw->pci_func;
- if (idc->prev_state == QLC_83XX_IDC_DEV_READY) {
- dev_err(&adapter->pdev->dev,
- "Firmware hang detected by VF 0x%x\n", func);
- set_bit(__QLCNIC_RESETTING, &adapter->state);
- adapter->tx_timeo_cnt = 0;
- adapter->reset_ctx_cnt = 0;
- clear_bit(QLC_83XX_MBX_READY, &mbx->status);
- qlcnic_sriov_vf_detach(adapter);
- }
- return 0;
- }
- static int qlcnic_sriov_vf_idc_unknown_state(struct qlcnic_adapter *adapter)
- {
- dev_err(&adapter->pdev->dev, "%s: Device in unknown state\n", __func__);
- return 0;
- }
- static void qlcnic_sriov_vf_periodic_tasks(struct qlcnic_adapter *adapter)
- {
- if (adapter->fhash.fnum)
- qlcnic_prune_lb_filters(adapter);
- }
- static void qlcnic_sriov_vf_poll_dev_state(struct work_struct *work)
- {
- struct qlcnic_adapter *adapter;
- struct qlc_83xx_idc *idc;
- int ret = 0;
- adapter = container_of(work, struct qlcnic_adapter, fw_work.work);
- idc = &adapter->ahw->idc;
- idc->curr_state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE);
- switch (idc->curr_state) {
- case QLC_83XX_IDC_DEV_READY:
- ret = qlcnic_sriov_vf_idc_ready_state(adapter);
- break;
- case QLC_83XX_IDC_DEV_NEED_RESET:
- case QLC_83XX_IDC_DEV_INIT:
- ret = qlcnic_sriov_vf_idc_init_reset_state(adapter);
- break;
- case QLC_83XX_IDC_DEV_NEED_QUISCENT:
- ret = qlcnic_sriov_vf_idc_need_quiescent_state(adapter);
- break;
- case QLC_83XX_IDC_DEV_FAILED:
- ret = qlcnic_sriov_vf_idc_failed_state(adapter);
- break;
- case QLC_83XX_IDC_DEV_QUISCENT:
- break;
- default:
- ret = qlcnic_sriov_vf_idc_unknown_state(adapter);
- }
- idc->prev_state = idc->curr_state;
- qlcnic_sriov_vf_periodic_tasks(adapter);
- if (!ret && test_bit(QLC_83XX_MODULE_LOADED, &idc->status))
- qlcnic_schedule_work(adapter, qlcnic_sriov_vf_poll_dev_state,
- idc->delay);
- }
- static void qlcnic_sriov_vf_cancel_fw_work(struct qlcnic_adapter *adapter)
- {
- while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
- msleep(20);
- clear_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status);
- clear_bit(__QLCNIC_RESETTING, &adapter->state);
- cancel_delayed_work_sync(&adapter->fw_work);
- }
- static int qlcnic_sriov_check_vlan_id(struct qlcnic_sriov *sriov,
- struct qlcnic_vf_info *vf, u16 vlan_id)
- {
- int i, err = -EINVAL;
- if (!vf->sriov_vlans)
- return err;
- spin_lock_bh(&vf->vlan_list_lock);
- for (i = 0; i < sriov->num_allowed_vlans; i++) {
- if (vf->sriov_vlans[i] == vlan_id) {
- err = 0;
- break;
- }
- }
- spin_unlock_bh(&vf->vlan_list_lock);
- return err;
- }
- static int qlcnic_sriov_validate_num_vlans(struct qlcnic_sriov *sriov,
- struct qlcnic_vf_info *vf)
- {
- int err = 0;
- spin_lock_bh(&vf->vlan_list_lock);
- if (vf->num_vlan >= sriov->num_allowed_vlans)
- err = -EINVAL;
- spin_unlock_bh(&vf->vlan_list_lock);
- return err;
- }
- static int qlcnic_sriov_validate_vlan_cfg(struct qlcnic_adapter *adapter,
- u16 vid, u8 enable)
- {
- struct qlcnic_sriov *sriov = adapter->ahw->sriov;
- struct qlcnic_vf_info *vf;
- bool vlan_exist;
- u8 allowed = 0;
- int i;
- vf = &adapter->ahw->sriov->vf_info[0];
- vlan_exist = qlcnic_sriov_check_any_vlan(vf);
- if (sriov->vlan_mode != QLC_GUEST_VLAN_MODE)
- return -EINVAL;
- if (enable) {
- if (qlcnic_83xx_vf_check(adapter) && vlan_exist)
- return -EINVAL;
- if (qlcnic_sriov_validate_num_vlans(sriov, vf))
- return -EINVAL;
- if (sriov->any_vlan) {
- for (i = 0; i < sriov->num_allowed_vlans; i++) {
- if (sriov->allowed_vlans[i] == vid)
- allowed = 1;
- }
- if (!allowed)
- return -EINVAL;
- }
- } else {
- if (!vlan_exist || qlcnic_sriov_check_vlan_id(sriov, vf, vid))
- return -EINVAL;
- }
- return 0;
- }
- static void qlcnic_sriov_vlan_operation(struct qlcnic_vf_info *vf, u16 vlan_id,
- enum qlcnic_vlan_operations opcode)
- {
- struct qlcnic_adapter *adapter = vf->adapter;
- struct qlcnic_sriov *sriov;
- sriov = adapter->ahw->sriov;
- if (!vf->sriov_vlans)
- return;
- spin_lock_bh(&vf->vlan_list_lock);
- switch (opcode) {
- case QLC_VLAN_ADD:
- qlcnic_sriov_add_vlan_id(sriov, vf, vlan_id);
- break;
- case QLC_VLAN_DELETE:
- qlcnic_sriov_del_vlan_id(sriov, vf, vlan_id);
- break;
- default:
- netdev_err(adapter->netdev, "Invalid VLAN operation\n");
- }
- spin_unlock_bh(&vf->vlan_list_lock);
- return;
- }
- int qlcnic_sriov_cfg_vf_guest_vlan(struct qlcnic_adapter *adapter,
- u16 vid, u8 enable)
- {
- struct qlcnic_sriov *sriov = adapter->ahw->sriov;
- struct net_device *netdev = adapter->netdev;
- struct qlcnic_vf_info *vf;
- struct qlcnic_cmd_args cmd;
- int ret;
- memset(&cmd, 0, sizeof(cmd));
- if (vid == 0)
- return 0;
- vf = &adapter->ahw->sriov->vf_info[0];
- ret = qlcnic_sriov_validate_vlan_cfg(adapter, vid, enable);
- if (ret)
- return ret;
- ret = qlcnic_sriov_alloc_bc_mbx_args(&cmd,
- QLCNIC_BC_CMD_CFG_GUEST_VLAN);
- if (ret)
- return ret;
- cmd.req.arg[1] = (enable & 1) | vid << 16;
- qlcnic_sriov_cleanup_async_list(&sriov->bc);
- ret = qlcnic_issue_cmd(adapter, &cmd);
- if (ret) {
- dev_err(&adapter->pdev->dev,
- "Failed to configure guest VLAN, err=%d\n", ret);
- } else {
- netif_addr_lock_bh(netdev);
- qlcnic_free_mac_list(adapter);
- netif_addr_unlock_bh(netdev);
- if (enable)
- qlcnic_sriov_vlan_operation(vf, vid, QLC_VLAN_ADD);
- else
- qlcnic_sriov_vlan_operation(vf, vid, QLC_VLAN_DELETE);
- netif_addr_lock_bh(netdev);
- qlcnic_set_multi(netdev);
- netif_addr_unlock_bh(netdev);
- }
- qlcnic_free_mbx_args(&cmd);
- return ret;
- }
- static void qlcnic_sriov_vf_free_mac_list(struct qlcnic_adapter *adapter)
- {
- struct list_head *head = &adapter->mac_list;
- struct qlcnic_mac_vlan_list *cur;
- while (!list_empty(head)) {
- cur = list_entry(head->next, struct qlcnic_mac_vlan_list, list);
- qlcnic_sre_macaddr_change(adapter, cur->mac_addr, cur->vlan_id,
- QLCNIC_MAC_DEL);
- list_del(&cur->list);
- kfree(cur);
- }
- }
- static int qlcnic_sriov_vf_shutdown(struct pci_dev *pdev)
- {
- struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
- struct net_device *netdev = adapter->netdev;
- int retval;
- netif_device_detach(netdev);
- qlcnic_cancel_idc_work(adapter);
- if (netif_running(netdev))
- qlcnic_down(adapter, netdev);
- qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM);
- qlcnic_sriov_cfg_bc_intr(adapter, 0);
- qlcnic_83xx_disable_mbx_intr(adapter);
- cancel_delayed_work_sync(&adapter->idc_aen_work);
- retval = pci_save_state(pdev);
- if (retval)
- return retval;
- return 0;
- }
- static int qlcnic_sriov_vf_resume(struct qlcnic_adapter *adapter)
- {
- struct qlc_83xx_idc *idc = &adapter->ahw->idc;
- struct net_device *netdev = adapter->netdev;
- int err;
- set_bit(QLC_83XX_MODULE_LOADED, &idc->status);
- qlcnic_83xx_enable_mbx_interrupt(adapter);
- err = qlcnic_sriov_cfg_bc_intr(adapter, 1);
- if (err)
- return err;
- err = qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_INIT);
- if (!err) {
- if (netif_running(netdev)) {
- err = qlcnic_up(adapter, netdev);
- if (!err)
- qlcnic_restore_indev_addr(netdev, NETDEV_UP);
- }
- }
- netif_device_attach(netdev);
- qlcnic_schedule_work(adapter, qlcnic_sriov_vf_poll_dev_state,
- idc->delay);
- return err;
- }
- void qlcnic_sriov_alloc_vlans(struct qlcnic_adapter *adapter)
- {
- struct qlcnic_sriov *sriov = adapter->ahw->sriov;
- struct qlcnic_vf_info *vf;
- int i;
- for (i = 0; i < sriov->num_vfs; i++) {
- vf = &sriov->vf_info[i];
- vf->sriov_vlans = kcalloc(sriov->num_allowed_vlans,
- sizeof(*vf->sriov_vlans), GFP_KERNEL);
- }
- }
- void qlcnic_sriov_free_vlans(struct qlcnic_adapter *adapter)
- {
- struct qlcnic_sriov *sriov = adapter->ahw->sriov;
- struct qlcnic_vf_info *vf;
- int i;
- for (i = 0; i < sriov->num_vfs; i++) {
- vf = &sriov->vf_info[i];
- kfree(vf->sriov_vlans);
- vf->sriov_vlans = NULL;
- }
- }
- void qlcnic_sriov_add_vlan_id(struct qlcnic_sriov *sriov,
- struct qlcnic_vf_info *vf, u16 vlan_id)
- {
- int i;
- for (i = 0; i < sriov->num_allowed_vlans; i++) {
- if (!vf->sriov_vlans[i]) {
- vf->sriov_vlans[i] = vlan_id;
- vf->num_vlan++;
- return;
- }
- }
- }
- void qlcnic_sriov_del_vlan_id(struct qlcnic_sriov *sriov,
- struct qlcnic_vf_info *vf, u16 vlan_id)
- {
- int i;
- for (i = 0; i < sriov->num_allowed_vlans; i++) {
- if (vf->sriov_vlans[i] == vlan_id) {
- vf->sriov_vlans[i] = 0;
- vf->num_vlan--;
- return;
- }
- }
- }
- bool qlcnic_sriov_check_any_vlan(struct qlcnic_vf_info *vf)
- {
- bool err = false;
- spin_lock_bh(&vf->vlan_list_lock);
- if (vf->num_vlan)
- err = true;
- spin_unlock_bh(&vf->vlan_list_lock);
- return err;
- }
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