| /* |
| * Copyright (C) 2005 - 2015 Emulex |
| * All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License version 2 |
| * as published by the Free Software Foundation. The full GNU General |
| * Public License is included in this distribution in the file called COPYING. |
| * |
| * Contact Information: |
| * linux-drivers@emulex.com |
| * |
| * Emulex |
| * 3333 Susan Street |
| * Costa Mesa, CA 92626 |
| */ |
| |
| #include <linux/prefetch.h> |
| #include <linux/module.h> |
| #include "be.h" |
| #include "be_cmds.h" |
| #include <asm/div64.h> |
| #include <linux/aer.h> |
| #include <linux/if_bridge.h> |
| #include <net/busy_poll.h> |
| #include <net/vxlan.h> |
| |
| MODULE_VERSION(DRV_VER); |
| MODULE_DESCRIPTION(DRV_DESC " " DRV_VER); |
| MODULE_AUTHOR("Emulex Corporation"); |
| MODULE_LICENSE("GPL"); |
| |
| /* num_vfs module param is obsolete. |
| * Use sysfs method to enable/disable VFs. |
| */ |
| static unsigned int num_vfs; |
| module_param(num_vfs, uint, S_IRUGO); |
| MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize"); |
| |
| static ushort rx_frag_size = 2048; |
| module_param(rx_frag_size, ushort, S_IRUGO); |
| MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data."); |
| |
| static const struct pci_device_id be_dev_ids[] = { |
| { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) }, |
| { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) }, |
| { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) }, |
| { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) }, |
| { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)}, |
| { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)}, |
| { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID5)}, |
| { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID6)}, |
| { 0 } |
| }; |
| MODULE_DEVICE_TABLE(pci, be_dev_ids); |
| /* UE Status Low CSR */ |
| static const char * const ue_status_low_desc[] = { |
| "CEV", |
| "CTX", |
| "DBUF", |
| "ERX", |
| "Host", |
| "MPU", |
| "NDMA", |
| "PTC ", |
| "RDMA ", |
| "RXF ", |
| "RXIPS ", |
| "RXULP0 ", |
| "RXULP1 ", |
| "RXULP2 ", |
| "TIM ", |
| "TPOST ", |
| "TPRE ", |
| "TXIPS ", |
| "TXULP0 ", |
| "TXULP1 ", |
| "UC ", |
| "WDMA ", |
| "TXULP2 ", |
| "HOST1 ", |
| "P0_OB_LINK ", |
| "P1_OB_LINK ", |
| "HOST_GPIO ", |
| "MBOX ", |
| "ERX2 ", |
| "SPARE ", |
| "JTAG ", |
| "MPU_INTPEND " |
| }; |
| |
| /* UE Status High CSR */ |
| static const char * const ue_status_hi_desc[] = { |
| "LPCMEMHOST", |
| "MGMT_MAC", |
| "PCS0ONLINE", |
| "MPU_IRAM", |
| "PCS1ONLINE", |
| "PCTL0", |
| "PCTL1", |
| "PMEM", |
| "RR", |
| "TXPB", |
| "RXPP", |
| "XAUI", |
| "TXP", |
| "ARM", |
| "IPC", |
| "HOST2", |
| "HOST3", |
| "HOST4", |
| "HOST5", |
| "HOST6", |
| "HOST7", |
| "ECRC", |
| "Poison TLP", |
| "NETC", |
| "PERIPH", |
| "LLTXULP", |
| "D2P", |
| "RCON", |
| "LDMA", |
| "LLTXP", |
| "LLTXPB", |
| "Unknown" |
| }; |
| |
| static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q) |
| { |
| struct be_dma_mem *mem = &q->dma_mem; |
| |
| if (mem->va) { |
| dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va, |
| mem->dma); |
| mem->va = NULL; |
| } |
| } |
| |
| static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q, |
| u16 len, u16 entry_size) |
| { |
| struct be_dma_mem *mem = &q->dma_mem; |
| |
| memset(q, 0, sizeof(*q)); |
| q->len = len; |
| q->entry_size = entry_size; |
| mem->size = len * entry_size; |
| mem->va = dma_zalloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma, |
| GFP_KERNEL); |
| if (!mem->va) |
| return -ENOMEM; |
| return 0; |
| } |
| |
| static void be_reg_intr_set(struct be_adapter *adapter, bool enable) |
| { |
| u32 reg, enabled; |
| |
| pci_read_config_dword(adapter->pdev, PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET, |
| ®); |
| enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; |
| |
| if (!enabled && enable) |
| reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; |
| else if (enabled && !enable) |
| reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; |
| else |
| return; |
| |
| pci_write_config_dword(adapter->pdev, |
| PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET, reg); |
| } |
| |
| static void be_intr_set(struct be_adapter *adapter, bool enable) |
| { |
| int status = 0; |
| |
| /* On lancer interrupts can't be controlled via this register */ |
| if (lancer_chip(adapter)) |
| return; |
| |
| if (be_check_error(adapter, BE_ERROR_EEH)) |
| return; |
| |
| status = be_cmd_intr_set(adapter, enable); |
| if (status) |
| be_reg_intr_set(adapter, enable); |
| } |
| |
| static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted) |
| { |
| u32 val = 0; |
| |
| if (be_check_error(adapter, BE_ERROR_HW)) |
| return; |
| |
| val |= qid & DB_RQ_RING_ID_MASK; |
| val |= posted << DB_RQ_NUM_POSTED_SHIFT; |
| |
| wmb(); |
| iowrite32(val, adapter->db + DB_RQ_OFFSET); |
| } |
| |
| static void be_txq_notify(struct be_adapter *adapter, struct be_tx_obj *txo, |
| u16 posted) |
| { |
| u32 val = 0; |
| |
| if (be_check_error(adapter, BE_ERROR_HW)) |
| return; |
| |
| val |= txo->q.id & DB_TXULP_RING_ID_MASK; |
| val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT; |
| |
| wmb(); |
| iowrite32(val, adapter->db + txo->db_offset); |
| } |
| |
| static void be_eq_notify(struct be_adapter *adapter, u16 qid, |
| bool arm, bool clear_int, u16 num_popped, |
| u32 eq_delay_mult_enc) |
| { |
| u32 val = 0; |
| |
| val |= qid & DB_EQ_RING_ID_MASK; |
| val |= ((qid & DB_EQ_RING_ID_EXT_MASK) << DB_EQ_RING_ID_EXT_MASK_SHIFT); |
| |
| if (be_check_error(adapter, BE_ERROR_HW)) |
| return; |
| |
| if (arm) |
| val |= 1 << DB_EQ_REARM_SHIFT; |
| if (clear_int) |
| val |= 1 << DB_EQ_CLR_SHIFT; |
| val |= 1 << DB_EQ_EVNT_SHIFT; |
| val |= num_popped << DB_EQ_NUM_POPPED_SHIFT; |
| val |= eq_delay_mult_enc << DB_EQ_R2I_DLY_SHIFT; |
| iowrite32(val, adapter->db + DB_EQ_OFFSET); |
| } |
| |
| void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped) |
| { |
| u32 val = 0; |
| |
| val |= qid & DB_CQ_RING_ID_MASK; |
| val |= ((qid & DB_CQ_RING_ID_EXT_MASK) << |
| DB_CQ_RING_ID_EXT_MASK_SHIFT); |
| |
| if (be_check_error(adapter, BE_ERROR_HW)) |
| return; |
| |
| if (arm) |
| val |= 1 << DB_CQ_REARM_SHIFT; |
| val |= num_popped << DB_CQ_NUM_POPPED_SHIFT; |
| iowrite32(val, adapter->db + DB_CQ_OFFSET); |
| } |
| |
| static int be_mac_addr_set(struct net_device *netdev, void *p) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct device *dev = &adapter->pdev->dev; |
| struct sockaddr *addr = p; |
| int status; |
| u8 mac[ETH_ALEN]; |
| u32 old_pmac_id = adapter->pmac_id[0], curr_pmac_id = 0; |
| |
| if (!is_valid_ether_addr(addr->sa_data)) |
| return -EADDRNOTAVAIL; |
| |
| /* Proceed further only if, User provided MAC is different |
| * from active MAC |
| */ |
| if (ether_addr_equal(addr->sa_data, netdev->dev_addr)) |
| return 0; |
| |
| /* The PMAC_ADD cmd may fail if the VF doesn't have FILTMGMT |
| * privilege or if PF did not provision the new MAC address. |
| * On BE3, this cmd will always fail if the VF doesn't have the |
| * FILTMGMT privilege. This failure is OK, only if the PF programmed |
| * the MAC for the VF. |
| */ |
| status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data, |
| adapter->if_handle, &adapter->pmac_id[0], 0); |
| if (!status) { |
| curr_pmac_id = adapter->pmac_id[0]; |
| |
| /* Delete the old programmed MAC. This call may fail if the |
| * old MAC was already deleted by the PF driver. |
| */ |
| if (adapter->pmac_id[0] != old_pmac_id) |
| be_cmd_pmac_del(adapter, adapter->if_handle, |
| old_pmac_id, 0); |
| } |
| |
| /* Decide if the new MAC is successfully activated only after |
| * querying the FW |
| */ |
| status = be_cmd_get_active_mac(adapter, curr_pmac_id, mac, |
| adapter->if_handle, true, 0); |
| if (status) |
| goto err; |
| |
| /* The MAC change did not happen, either due to lack of privilege |
| * or PF didn't pre-provision. |
| */ |
| if (!ether_addr_equal(addr->sa_data, mac)) { |
| status = -EPERM; |
| goto err; |
| } |
| |
| memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); |
| dev_info(dev, "MAC address changed to %pM\n", mac); |
| return 0; |
| err: |
| dev_warn(dev, "MAC address change to %pM failed\n", addr->sa_data); |
| return status; |
| } |
| |
| /* BE2 supports only v0 cmd */ |
| static void *hw_stats_from_cmd(struct be_adapter *adapter) |
| { |
| if (BE2_chip(adapter)) { |
| struct be_cmd_resp_get_stats_v0 *cmd = adapter->stats_cmd.va; |
| |
| return &cmd->hw_stats; |
| } else if (BE3_chip(adapter)) { |
| struct be_cmd_resp_get_stats_v1 *cmd = adapter->stats_cmd.va; |
| |
| return &cmd->hw_stats; |
| } else { |
| struct be_cmd_resp_get_stats_v2 *cmd = adapter->stats_cmd.va; |
| |
| return &cmd->hw_stats; |
| } |
| } |
| |
| /* BE2 supports only v0 cmd */ |
| static void *be_erx_stats_from_cmd(struct be_adapter *adapter) |
| { |
| if (BE2_chip(adapter)) { |
| struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter); |
| |
| return &hw_stats->erx; |
| } else if (BE3_chip(adapter)) { |
| struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter); |
| |
| return &hw_stats->erx; |
| } else { |
| struct be_hw_stats_v2 *hw_stats = hw_stats_from_cmd(adapter); |
| |
| return &hw_stats->erx; |
| } |
| } |
| |
| static void populate_be_v0_stats(struct be_adapter *adapter) |
| { |
| struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter); |
| struct be_pmem_stats *pmem_sts = &hw_stats->pmem; |
| struct be_rxf_stats_v0 *rxf_stats = &hw_stats->rxf; |
| struct be_port_rxf_stats_v0 *port_stats = |
| &rxf_stats->port[adapter->port_num]; |
| struct be_drv_stats *drvs = &adapter->drv_stats; |
| |
| be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats)); |
| drvs->rx_pause_frames = port_stats->rx_pause_frames; |
| drvs->rx_crc_errors = port_stats->rx_crc_errors; |
| drvs->rx_control_frames = port_stats->rx_control_frames; |
| drvs->rx_in_range_errors = port_stats->rx_in_range_errors; |
| drvs->rx_frame_too_long = port_stats->rx_frame_too_long; |
| drvs->rx_dropped_runt = port_stats->rx_dropped_runt; |
| drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs; |
| drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs; |
| drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs; |
| drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow; |
| drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length; |
| drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small; |
| drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short; |
| drvs->rx_out_range_errors = port_stats->rx_out_range_errors; |
| drvs->rx_input_fifo_overflow_drop = port_stats->rx_input_fifo_overflow; |
| drvs->rx_dropped_header_too_small = |
| port_stats->rx_dropped_header_too_small; |
| drvs->rx_address_filtered = |
| port_stats->rx_address_filtered + |
| port_stats->rx_vlan_filtered; |
| drvs->rx_alignment_symbol_errors = |
| port_stats->rx_alignment_symbol_errors; |
| |
| drvs->tx_pauseframes = port_stats->tx_pauseframes; |
| drvs->tx_controlframes = port_stats->tx_controlframes; |
| |
| if (adapter->port_num) |
| drvs->jabber_events = rxf_stats->port1_jabber_events; |
| else |
| drvs->jabber_events = rxf_stats->port0_jabber_events; |
| drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf; |
| drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr; |
| drvs->forwarded_packets = rxf_stats->forwarded_packets; |
| drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu; |
| drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr; |
| drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags; |
| adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops; |
| } |
| |
| static void populate_be_v1_stats(struct be_adapter *adapter) |
| { |
| struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter); |
| struct be_pmem_stats *pmem_sts = &hw_stats->pmem; |
| struct be_rxf_stats_v1 *rxf_stats = &hw_stats->rxf; |
| struct be_port_rxf_stats_v1 *port_stats = |
| &rxf_stats->port[adapter->port_num]; |
| struct be_drv_stats *drvs = &adapter->drv_stats; |
| |
| be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats)); |
| drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop; |
| drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames; |
| drvs->rx_pause_frames = port_stats->rx_pause_frames; |
| drvs->rx_crc_errors = port_stats->rx_crc_errors; |
| drvs->rx_control_frames = port_stats->rx_control_frames; |
| drvs->rx_in_range_errors = port_stats->rx_in_range_errors; |
| drvs->rx_frame_too_long = port_stats->rx_frame_too_long; |
| drvs->rx_dropped_runt = port_stats->rx_dropped_runt; |
| drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs; |
| drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs; |
| drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs; |
| drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length; |
| drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small; |
| drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short; |
| drvs->rx_out_range_errors = port_stats->rx_out_range_errors; |
| drvs->rx_dropped_header_too_small = |
| port_stats->rx_dropped_header_too_small; |
| drvs->rx_input_fifo_overflow_drop = |
| port_stats->rx_input_fifo_overflow_drop; |
| drvs->rx_address_filtered = port_stats->rx_address_filtered; |
| drvs->rx_alignment_symbol_errors = |
| port_stats->rx_alignment_symbol_errors; |
| drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop; |
| drvs->tx_pauseframes = port_stats->tx_pauseframes; |
| drvs->tx_controlframes = port_stats->tx_controlframes; |
| drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes; |
| drvs->jabber_events = port_stats->jabber_events; |
| drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf; |
| drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr; |
| drvs->forwarded_packets = rxf_stats->forwarded_packets; |
| drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu; |
| drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr; |
| drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags; |
| adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops; |
| } |
| |
| static void populate_be_v2_stats(struct be_adapter *adapter) |
| { |
| struct be_hw_stats_v2 *hw_stats = hw_stats_from_cmd(adapter); |
| struct be_pmem_stats *pmem_sts = &hw_stats->pmem; |
| struct be_rxf_stats_v2 *rxf_stats = &hw_stats->rxf; |
| struct be_port_rxf_stats_v2 *port_stats = |
| &rxf_stats->port[adapter->port_num]; |
| struct be_drv_stats *drvs = &adapter->drv_stats; |
| |
| be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats)); |
| drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop; |
| drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames; |
| drvs->rx_pause_frames = port_stats->rx_pause_frames; |
| drvs->rx_crc_errors = port_stats->rx_crc_errors; |
| drvs->rx_control_frames = port_stats->rx_control_frames; |
| drvs->rx_in_range_errors = port_stats->rx_in_range_errors; |
| drvs->rx_frame_too_long = port_stats->rx_frame_too_long; |
| drvs->rx_dropped_runt = port_stats->rx_dropped_runt; |
| drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs; |
| drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs; |
| drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs; |
| drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length; |
| drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small; |
| drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short; |
| drvs->rx_out_range_errors = port_stats->rx_out_range_errors; |
| drvs->rx_dropped_header_too_small = |
| port_stats->rx_dropped_header_too_small; |
| drvs->rx_input_fifo_overflow_drop = |
| port_stats->rx_input_fifo_overflow_drop; |
| drvs->rx_address_filtered = port_stats->rx_address_filtered; |
| drvs->rx_alignment_symbol_errors = |
| port_stats->rx_alignment_symbol_errors; |
| drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop; |
| drvs->tx_pauseframes = port_stats->tx_pauseframes; |
| drvs->tx_controlframes = port_stats->tx_controlframes; |
| drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes; |
| drvs->jabber_events = port_stats->jabber_events; |
| drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf; |
| drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr; |
| drvs->forwarded_packets = rxf_stats->forwarded_packets; |
| drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu; |
| drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr; |
| drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags; |
| adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops; |
| if (be_roce_supported(adapter)) { |
| drvs->rx_roce_bytes_lsd = port_stats->roce_bytes_received_lsd; |
| drvs->rx_roce_bytes_msd = port_stats->roce_bytes_received_msd; |
| drvs->rx_roce_frames = port_stats->roce_frames_received; |
| drvs->roce_drops_crc = port_stats->roce_drops_crc; |
| drvs->roce_drops_payload_len = |
| port_stats->roce_drops_payload_len; |
| } |
| } |
| |
| static void populate_lancer_stats(struct be_adapter *adapter) |
| { |
| struct be_drv_stats *drvs = &adapter->drv_stats; |
| struct lancer_pport_stats *pport_stats = pport_stats_from_cmd(adapter); |
| |
| be_dws_le_to_cpu(pport_stats, sizeof(*pport_stats)); |
| drvs->rx_pause_frames = pport_stats->rx_pause_frames_lo; |
| drvs->rx_crc_errors = pport_stats->rx_crc_errors_lo; |
| drvs->rx_control_frames = pport_stats->rx_control_frames_lo; |
| drvs->rx_in_range_errors = pport_stats->rx_in_range_errors; |
| drvs->rx_frame_too_long = pport_stats->rx_frames_too_long_lo; |
| drvs->rx_dropped_runt = pport_stats->rx_dropped_runt; |
| drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors; |
| drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors; |
| drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors; |
| drvs->rx_dropped_tcp_length = |
| pport_stats->rx_dropped_invalid_tcp_length; |
| drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small; |
| drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short; |
| drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors; |
| drvs->rx_dropped_header_too_small = |
| pport_stats->rx_dropped_header_too_small; |
| drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow; |
| drvs->rx_address_filtered = |
| pport_stats->rx_address_filtered + |
| pport_stats->rx_vlan_filtered; |
| drvs->rx_alignment_symbol_errors = pport_stats->rx_symbol_errors_lo; |
| drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow; |
| drvs->tx_pauseframes = pport_stats->tx_pause_frames_lo; |
| drvs->tx_controlframes = pport_stats->tx_control_frames_lo; |
| drvs->jabber_events = pport_stats->rx_jabbers; |
| drvs->forwarded_packets = pport_stats->num_forwards_lo; |
| drvs->rx_drops_mtu = pport_stats->rx_drops_mtu_lo; |
| drvs->rx_drops_too_many_frags = |
| pport_stats->rx_drops_too_many_frags_lo; |
| } |
| |
| static void accumulate_16bit_val(u32 *acc, u16 val) |
| { |
| #define lo(x) (x & 0xFFFF) |
| #define hi(x) (x & 0xFFFF0000) |
| bool wrapped = val < lo(*acc); |
| u32 newacc = hi(*acc) + val; |
| |
| if (wrapped) |
| newacc += 65536; |
| ACCESS_ONCE(*acc) = newacc; |
| } |
| |
| static void populate_erx_stats(struct be_adapter *adapter, |
| struct be_rx_obj *rxo, u32 erx_stat) |
| { |
| if (!BEx_chip(adapter)) |
| rx_stats(rxo)->rx_drops_no_frags = erx_stat; |
| else |
| /* below erx HW counter can actually wrap around after |
| * 65535. Driver accumulates a 32-bit value |
| */ |
| accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags, |
| (u16)erx_stat); |
| } |
| |
| void be_parse_stats(struct be_adapter *adapter) |
| { |
| struct be_erx_stats_v2 *erx = be_erx_stats_from_cmd(adapter); |
| struct be_rx_obj *rxo; |
| int i; |
| u32 erx_stat; |
| |
| if (lancer_chip(adapter)) { |
| populate_lancer_stats(adapter); |
| } else { |
| if (BE2_chip(adapter)) |
| populate_be_v0_stats(adapter); |
| else if (BE3_chip(adapter)) |
| /* for BE3 */ |
| populate_be_v1_stats(adapter); |
| else |
| populate_be_v2_stats(adapter); |
| |
| /* erx_v2 is longer than v0, v1. use v2 for v0, v1 access */ |
| for_all_rx_queues(adapter, rxo, i) { |
| erx_stat = erx->rx_drops_no_fragments[rxo->q.id]; |
| populate_erx_stats(adapter, rxo, erx_stat); |
| } |
| } |
| } |
| |
| static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev, |
| struct rtnl_link_stats64 *stats) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct be_drv_stats *drvs = &adapter->drv_stats; |
| struct be_rx_obj *rxo; |
| struct be_tx_obj *txo; |
| u64 pkts, bytes; |
| unsigned int start; |
| int i; |
| |
| for_all_rx_queues(adapter, rxo, i) { |
| const struct be_rx_stats *rx_stats = rx_stats(rxo); |
| |
| do { |
| start = u64_stats_fetch_begin_irq(&rx_stats->sync); |
| pkts = rx_stats(rxo)->rx_pkts; |
| bytes = rx_stats(rxo)->rx_bytes; |
| } while (u64_stats_fetch_retry_irq(&rx_stats->sync, start)); |
| stats->rx_packets += pkts; |
| stats->rx_bytes += bytes; |
| stats->multicast += rx_stats(rxo)->rx_mcast_pkts; |
| stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs + |
| rx_stats(rxo)->rx_drops_no_frags; |
| } |
| |
| for_all_tx_queues(adapter, txo, i) { |
| const struct be_tx_stats *tx_stats = tx_stats(txo); |
| |
| do { |
| start = u64_stats_fetch_begin_irq(&tx_stats->sync); |
| pkts = tx_stats(txo)->tx_pkts; |
| bytes = tx_stats(txo)->tx_bytes; |
| } while (u64_stats_fetch_retry_irq(&tx_stats->sync, start)); |
| stats->tx_packets += pkts; |
| stats->tx_bytes += bytes; |
| } |
| |
| /* bad pkts received */ |
| stats->rx_errors = drvs->rx_crc_errors + |
| drvs->rx_alignment_symbol_errors + |
| drvs->rx_in_range_errors + |
| drvs->rx_out_range_errors + |
| drvs->rx_frame_too_long + |
| drvs->rx_dropped_too_small + |
| drvs->rx_dropped_too_short + |
| drvs->rx_dropped_header_too_small + |
| drvs->rx_dropped_tcp_length + |
| drvs->rx_dropped_runt; |
| |
| /* detailed rx errors */ |
| stats->rx_length_errors = drvs->rx_in_range_errors + |
| drvs->rx_out_range_errors + |
| drvs->rx_frame_too_long; |
| |
| stats->rx_crc_errors = drvs->rx_crc_errors; |
| |
| /* frame alignment errors */ |
| stats->rx_frame_errors = drvs->rx_alignment_symbol_errors; |
| |
| /* receiver fifo overrun */ |
| /* drops_no_pbuf is no per i/f, it's per BE card */ |
| stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop + |
| drvs->rx_input_fifo_overflow_drop + |
| drvs->rx_drops_no_pbuf; |
| return stats; |
| } |
| |
| void be_link_status_update(struct be_adapter *adapter, u8 link_status) |
| { |
| struct net_device *netdev = adapter->netdev; |
| |
| if (!(adapter->flags & BE_FLAGS_LINK_STATUS_INIT)) { |
| netif_carrier_off(netdev); |
| adapter->flags |= BE_FLAGS_LINK_STATUS_INIT; |
| } |
| |
| if (link_status) |
| netif_carrier_on(netdev); |
| else |
| netif_carrier_off(netdev); |
| |
| netdev_info(netdev, "Link is %s\n", link_status ? "Up" : "Down"); |
| } |
| |
| static void be_tx_stats_update(struct be_tx_obj *txo, struct sk_buff *skb) |
| { |
| struct be_tx_stats *stats = tx_stats(txo); |
| |
| u64_stats_update_begin(&stats->sync); |
| stats->tx_reqs++; |
| stats->tx_bytes += skb->len; |
| stats->tx_pkts += (skb_shinfo(skb)->gso_segs ? : 1); |
| u64_stats_update_end(&stats->sync); |
| } |
| |
| /* Returns number of WRBs needed for the skb */ |
| static u32 skb_wrb_cnt(struct sk_buff *skb) |
| { |
| /* +1 for the header wrb */ |
| return 1 + (skb_headlen(skb) ? 1 : 0) + skb_shinfo(skb)->nr_frags; |
| } |
| |
| static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len) |
| { |
| wrb->frag_pa_hi = cpu_to_le32(upper_32_bits(addr)); |
| wrb->frag_pa_lo = cpu_to_le32(lower_32_bits(addr)); |
| wrb->frag_len = cpu_to_le32(len & ETH_WRB_FRAG_LEN_MASK); |
| wrb->rsvd0 = 0; |
| } |
| |
| /* A dummy wrb is just all zeros. Using a separate routine for dummy-wrb |
| * to avoid the swap and shift/mask operations in wrb_fill(). |
| */ |
| static inline void wrb_fill_dummy(struct be_eth_wrb *wrb) |
| { |
| wrb->frag_pa_hi = 0; |
| wrb->frag_pa_lo = 0; |
| wrb->frag_len = 0; |
| wrb->rsvd0 = 0; |
| } |
| |
| static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter, |
| struct sk_buff *skb) |
| { |
| u8 vlan_prio; |
| u16 vlan_tag; |
| |
| vlan_tag = skb_vlan_tag_get(skb); |
| vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT; |
| /* If vlan priority provided by OS is NOT in available bmap */ |
| if (!(adapter->vlan_prio_bmap & (1 << vlan_prio))) |
| vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) | |
| adapter->recommended_prio; |
| |
| return vlan_tag; |
| } |
| |
| /* Used only for IP tunnel packets */ |
| static u16 skb_inner_ip_proto(struct sk_buff *skb) |
| { |
| return (inner_ip_hdr(skb)->version == 4) ? |
| inner_ip_hdr(skb)->protocol : inner_ipv6_hdr(skb)->nexthdr; |
| } |
| |
| static u16 skb_ip_proto(struct sk_buff *skb) |
| { |
| return (ip_hdr(skb)->version == 4) ? |
| ip_hdr(skb)->protocol : ipv6_hdr(skb)->nexthdr; |
| } |
| |
| static inline bool be_is_txq_full(struct be_tx_obj *txo) |
| { |
| return atomic_read(&txo->q.used) + BE_MAX_TX_FRAG_COUNT >= txo->q.len; |
| } |
| |
| static inline bool be_can_txq_wake(struct be_tx_obj *txo) |
| { |
| return atomic_read(&txo->q.used) < txo->q.len / 2; |
| } |
| |
| static inline bool be_is_tx_compl_pending(struct be_tx_obj *txo) |
| { |
| return atomic_read(&txo->q.used) > txo->pend_wrb_cnt; |
| } |
| |
| static void be_get_wrb_params_from_skb(struct be_adapter *adapter, |
| struct sk_buff *skb, |
| struct be_wrb_params *wrb_params) |
| { |
| u16 proto; |
| |
| if (skb_is_gso(skb)) { |
| BE_WRB_F_SET(wrb_params->features, LSO, 1); |
| wrb_params->lso_mss = skb_shinfo(skb)->gso_size; |
| if (skb_is_gso_v6(skb) && !lancer_chip(adapter)) |
| BE_WRB_F_SET(wrb_params->features, LSO6, 1); |
| } else if (skb->ip_summed == CHECKSUM_PARTIAL) { |
| if (skb->encapsulation) { |
| BE_WRB_F_SET(wrb_params->features, IPCS, 1); |
| proto = skb_inner_ip_proto(skb); |
| } else { |
| proto = skb_ip_proto(skb); |
| } |
| if (proto == IPPROTO_TCP) |
| BE_WRB_F_SET(wrb_params->features, TCPCS, 1); |
| else if (proto == IPPROTO_UDP) |
| BE_WRB_F_SET(wrb_params->features, UDPCS, 1); |
| } |
| |
| if (skb_vlan_tag_present(skb)) { |
| BE_WRB_F_SET(wrb_params->features, VLAN, 1); |
| wrb_params->vlan_tag = be_get_tx_vlan_tag(adapter, skb); |
| } |
| |
| BE_WRB_F_SET(wrb_params->features, CRC, 1); |
| } |
| |
| static void wrb_fill_hdr(struct be_adapter *adapter, |
| struct be_eth_hdr_wrb *hdr, |
| struct be_wrb_params *wrb_params, |
| struct sk_buff *skb) |
| { |
| memset(hdr, 0, sizeof(*hdr)); |
| |
| SET_TX_WRB_HDR_BITS(crc, hdr, |
| BE_WRB_F_GET(wrb_params->features, CRC)); |
| SET_TX_WRB_HDR_BITS(ipcs, hdr, |
| BE_WRB_F_GET(wrb_params->features, IPCS)); |
| SET_TX_WRB_HDR_BITS(tcpcs, hdr, |
| BE_WRB_F_GET(wrb_params->features, TCPCS)); |
| SET_TX_WRB_HDR_BITS(udpcs, hdr, |
| BE_WRB_F_GET(wrb_params->features, UDPCS)); |
| |
| SET_TX_WRB_HDR_BITS(lso, hdr, |
| BE_WRB_F_GET(wrb_params->features, LSO)); |
| SET_TX_WRB_HDR_BITS(lso6, hdr, |
| BE_WRB_F_GET(wrb_params->features, LSO6)); |
| SET_TX_WRB_HDR_BITS(lso_mss, hdr, wrb_params->lso_mss); |
| |
| /* Hack to skip HW VLAN tagging needs evt = 1, compl = 0. When this |
| * hack is not needed, the evt bit is set while ringing DB. |
| */ |
| SET_TX_WRB_HDR_BITS(event, hdr, |
| BE_WRB_F_GET(wrb_params->features, VLAN_SKIP_HW)); |
| SET_TX_WRB_HDR_BITS(vlan, hdr, |
| BE_WRB_F_GET(wrb_params->features, VLAN)); |
| SET_TX_WRB_HDR_BITS(vlan_tag, hdr, wrb_params->vlan_tag); |
| |
| SET_TX_WRB_HDR_BITS(num_wrb, hdr, skb_wrb_cnt(skb)); |
| SET_TX_WRB_HDR_BITS(len, hdr, skb->len); |
| SET_TX_WRB_HDR_BITS(mgmt, hdr, |
| BE_WRB_F_GET(wrb_params->features, OS2BMC)); |
| } |
| |
| static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb, |
| bool unmap_single) |
| { |
| dma_addr_t dma; |
| u32 frag_len = le32_to_cpu(wrb->frag_len); |
| |
| |
| dma = (u64)le32_to_cpu(wrb->frag_pa_hi) << 32 | |
| (u64)le32_to_cpu(wrb->frag_pa_lo); |
| if (frag_len) { |
| if (unmap_single) |
| dma_unmap_single(dev, dma, frag_len, DMA_TO_DEVICE); |
| else |
| dma_unmap_page(dev, dma, frag_len, DMA_TO_DEVICE); |
| } |
| } |
| |
| /* Grab a WRB header for xmit */ |
| static u16 be_tx_get_wrb_hdr(struct be_tx_obj *txo) |
| { |
| u16 head = txo->q.head; |
| |
| queue_head_inc(&txo->q); |
| return head; |
| } |
| |
| /* Set up the WRB header for xmit */ |
| static void be_tx_setup_wrb_hdr(struct be_adapter *adapter, |
| struct be_tx_obj *txo, |
| struct be_wrb_params *wrb_params, |
| struct sk_buff *skb, u16 head) |
| { |
| u32 num_frags = skb_wrb_cnt(skb); |
| struct be_queue_info *txq = &txo->q; |
| struct be_eth_hdr_wrb *hdr = queue_index_node(txq, head); |
| |
| wrb_fill_hdr(adapter, hdr, wrb_params, skb); |
| be_dws_cpu_to_le(hdr, sizeof(*hdr)); |
| |
| BUG_ON(txo->sent_skb_list[head]); |
| txo->sent_skb_list[head] = skb; |
| txo->last_req_hdr = head; |
| atomic_add(num_frags, &txq->used); |
| txo->last_req_wrb_cnt = num_frags; |
| txo->pend_wrb_cnt += num_frags; |
| } |
| |
| /* Setup a WRB fragment (buffer descriptor) for xmit */ |
| static void be_tx_setup_wrb_frag(struct be_tx_obj *txo, dma_addr_t busaddr, |
| int len) |
| { |
| struct be_eth_wrb *wrb; |
| struct be_queue_info *txq = &txo->q; |
| |
| wrb = queue_head_node(txq); |
| wrb_fill(wrb, busaddr, len); |
| queue_head_inc(txq); |
| } |
| |
| /* Bring the queue back to the state it was in before be_xmit_enqueue() routine |
| * was invoked. The producer index is restored to the previous packet and the |
| * WRBs of the current packet are unmapped. Invoked to handle tx setup errors. |
| */ |
| static void be_xmit_restore(struct be_adapter *adapter, |
| struct be_tx_obj *txo, u16 head, bool map_single, |
| u32 copied) |
| { |
| struct device *dev; |
| struct be_eth_wrb *wrb; |
| struct be_queue_info *txq = &txo->q; |
| |
| dev = &adapter->pdev->dev; |
| txq->head = head; |
| |
| /* skip the first wrb (hdr); it's not mapped */ |
| queue_head_inc(txq); |
| while (copied) { |
| wrb = queue_head_node(txq); |
| unmap_tx_frag(dev, wrb, map_single); |
| map_single = false; |
| copied -= le32_to_cpu(wrb->frag_len); |
| queue_head_inc(txq); |
| } |
| |
| txq->head = head; |
| } |
| |
| /* Enqueue the given packet for transmit. This routine allocates WRBs for the |
| * packet, dma maps the packet buffers and sets up the WRBs. Returns the number |
| * of WRBs used up by the packet. |
| */ |
| static u32 be_xmit_enqueue(struct be_adapter *adapter, struct be_tx_obj *txo, |
| struct sk_buff *skb, |
| struct be_wrb_params *wrb_params) |
| { |
| u32 i, copied = 0, wrb_cnt = skb_wrb_cnt(skb); |
| struct device *dev = &adapter->pdev->dev; |
| struct be_queue_info *txq = &txo->q; |
| bool map_single = false; |
| u16 head = txq->head; |
| dma_addr_t busaddr; |
| int len; |
| |
| head = be_tx_get_wrb_hdr(txo); |
| |
| if (skb->len > skb->data_len) { |
| len = skb_headlen(skb); |
| |
| busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE); |
| if (dma_mapping_error(dev, busaddr)) |
| goto dma_err; |
| map_single = true; |
| be_tx_setup_wrb_frag(txo, busaddr, len); |
| copied += len; |
| } |
| |
| for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
| const struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i]; |
| len = skb_frag_size(frag); |
| |
| busaddr = skb_frag_dma_map(dev, frag, 0, len, DMA_TO_DEVICE); |
| if (dma_mapping_error(dev, busaddr)) |
| goto dma_err; |
| be_tx_setup_wrb_frag(txo, busaddr, len); |
| copied += len; |
| } |
| |
| be_tx_setup_wrb_hdr(adapter, txo, wrb_params, skb, head); |
| |
| be_tx_stats_update(txo, skb); |
| return wrb_cnt; |
| |
| dma_err: |
| adapter->drv_stats.dma_map_errors++; |
| be_xmit_restore(adapter, txo, head, map_single, copied); |
| return 0; |
| } |
| |
| static inline int qnq_async_evt_rcvd(struct be_adapter *adapter) |
| { |
| return adapter->flags & BE_FLAGS_QNQ_ASYNC_EVT_RCVD; |
| } |
| |
| static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter, |
| struct sk_buff *skb, |
| struct be_wrb_params |
| *wrb_params) |
| { |
| u16 vlan_tag = 0; |
| |
| skb = skb_share_check(skb, GFP_ATOMIC); |
| if (unlikely(!skb)) |
| return skb; |
| |
| if (skb_vlan_tag_present(skb)) |
| vlan_tag = be_get_tx_vlan_tag(adapter, skb); |
| |
| if (qnq_async_evt_rcvd(adapter) && adapter->pvid) { |
| if (!vlan_tag) |
| vlan_tag = adapter->pvid; |
| /* f/w workaround to set skip_hw_vlan = 1, informs the F/W to |
| * skip VLAN insertion |
| */ |
| BE_WRB_F_SET(wrb_params->features, VLAN_SKIP_HW, 1); |
| } |
| |
| if (vlan_tag) { |
| skb = vlan_insert_tag_set_proto(skb, htons(ETH_P_8021Q), |
| vlan_tag); |
| if (unlikely(!skb)) |
| return skb; |
| skb->vlan_tci = 0; |
| } |
| |
| /* Insert the outer VLAN, if any */ |
| if (adapter->qnq_vid) { |
| vlan_tag = adapter->qnq_vid; |
| skb = vlan_insert_tag_set_proto(skb, htons(ETH_P_8021Q), |
| vlan_tag); |
| if (unlikely(!skb)) |
| return skb; |
| BE_WRB_F_SET(wrb_params->features, VLAN_SKIP_HW, 1); |
| } |
| |
| return skb; |
| } |
| |
| static bool be_ipv6_exthdr_check(struct sk_buff *skb) |
| { |
| struct ethhdr *eh = (struct ethhdr *)skb->data; |
| u16 offset = ETH_HLEN; |
| |
| if (eh->h_proto == htons(ETH_P_IPV6)) { |
| struct ipv6hdr *ip6h = (struct ipv6hdr *)(skb->data + offset); |
| |
| offset += sizeof(struct ipv6hdr); |
| if (ip6h->nexthdr != NEXTHDR_TCP && |
| ip6h->nexthdr != NEXTHDR_UDP) { |
| struct ipv6_opt_hdr *ehdr = |
| (struct ipv6_opt_hdr *)(skb->data + offset); |
| |
| /* offending pkt: 2nd byte following IPv6 hdr is 0xff */ |
| if (ehdr->hdrlen == 0xff) |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| static int be_vlan_tag_tx_chk(struct be_adapter *adapter, struct sk_buff *skb) |
| { |
| return skb_vlan_tag_present(skb) || adapter->pvid || adapter->qnq_vid; |
| } |
| |
| static int be_ipv6_tx_stall_chk(struct be_adapter *adapter, struct sk_buff *skb) |
| { |
| return BE3_chip(adapter) && be_ipv6_exthdr_check(skb); |
| } |
| |
| static struct sk_buff *be_lancer_xmit_workarounds(struct be_adapter *adapter, |
| struct sk_buff *skb, |
| struct be_wrb_params |
| *wrb_params) |
| { |
| struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data; |
| unsigned int eth_hdr_len; |
| struct iphdr *ip; |
| |
| /* For padded packets, BE HW modifies tot_len field in IP header |
| * incorrecly when VLAN tag is inserted by HW. |
| * For padded packets, Lancer computes incorrect checksum. |
| */ |
| eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ? |
| VLAN_ETH_HLEN : ETH_HLEN; |
| if (skb->len <= 60 && |
| (lancer_chip(adapter) || skb_vlan_tag_present(skb)) && |
| is_ipv4_pkt(skb)) { |
| ip = (struct iphdr *)ip_hdr(skb); |
| pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len)); |
| } |
| |
| /* If vlan tag is already inlined in the packet, skip HW VLAN |
| * tagging in pvid-tagging mode |
| */ |
| if (be_pvid_tagging_enabled(adapter) && |
| veh->h_vlan_proto == htons(ETH_P_8021Q)) |
| BE_WRB_F_SET(wrb_params->features, VLAN_SKIP_HW, 1); |
| |
| /* HW has a bug wherein it will calculate CSUM for VLAN |
| * pkts even though it is disabled. |
| * Manually insert VLAN in pkt. |
| */ |
| if (skb->ip_summed != CHECKSUM_PARTIAL && |
| skb_vlan_tag_present(skb)) { |
| skb = be_insert_vlan_in_pkt(adapter, skb, wrb_params); |
| if (unlikely(!skb)) |
| goto err; |
| } |
| |
| /* HW may lockup when VLAN HW tagging is requested on |
| * certain ipv6 packets. Drop such pkts if the HW workaround to |
| * skip HW tagging is not enabled by FW. |
| */ |
| if (unlikely(be_ipv6_tx_stall_chk(adapter, skb) && |
| (adapter->pvid || adapter->qnq_vid) && |
| !qnq_async_evt_rcvd(adapter))) |
| goto tx_drop; |
| |
| /* Manual VLAN tag insertion to prevent: |
| * ASIC lockup when the ASIC inserts VLAN tag into |
| * certain ipv6 packets. Insert VLAN tags in driver, |
| * and set event, completion, vlan bits accordingly |
| * in the Tx WRB. |
| */ |
| if (be_ipv6_tx_stall_chk(adapter, skb) && |
| be_vlan_tag_tx_chk(adapter, skb)) { |
| skb = be_insert_vlan_in_pkt(adapter, skb, wrb_params); |
| if (unlikely(!skb)) |
| goto err; |
| } |
| |
| return skb; |
| tx_drop: |
| dev_kfree_skb_any(skb); |
| err: |
| return NULL; |
| } |
| |
| static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter, |
| struct sk_buff *skb, |
| struct be_wrb_params *wrb_params) |
| { |
| /* Lancer, SH-R ASICs have a bug wherein Packets that are 32 bytes or |
| * less may cause a transmit stall on that port. So the work-around is |
| * to pad short packets (<= 32 bytes) to a 36-byte length. |
| */ |
| if (unlikely(!BEx_chip(adapter) && skb->len <= 32)) { |
| if (skb_put_padto(skb, 36)) |
| return NULL; |
| } |
| |
| if (BEx_chip(adapter) || lancer_chip(adapter)) { |
| skb = be_lancer_xmit_workarounds(adapter, skb, wrb_params); |
| if (!skb) |
| return NULL; |
| } |
| |
| return skb; |
| } |
| |
| static void be_xmit_flush(struct be_adapter *adapter, struct be_tx_obj *txo) |
| { |
| struct be_queue_info *txq = &txo->q; |
| struct be_eth_hdr_wrb *hdr = queue_index_node(txq, txo->last_req_hdr); |
| |
| /* Mark the last request eventable if it hasn't been marked already */ |
| if (!(hdr->dw[2] & cpu_to_le32(TX_HDR_WRB_EVT))) |
| hdr->dw[2] |= cpu_to_le32(TX_HDR_WRB_EVT | TX_HDR_WRB_COMPL); |
| |
| /* compose a dummy wrb if there are odd set of wrbs to notify */ |
| if (!lancer_chip(adapter) && (txo->pend_wrb_cnt & 1)) { |
| wrb_fill_dummy(queue_head_node(txq)); |
| queue_head_inc(txq); |
| atomic_inc(&txq->used); |
| txo->pend_wrb_cnt++; |
| hdr->dw[2] &= ~cpu_to_le32(TX_HDR_WRB_NUM_MASK << |
| TX_HDR_WRB_NUM_SHIFT); |
| hdr->dw[2] |= cpu_to_le32((txo->last_req_wrb_cnt + 1) << |
| TX_HDR_WRB_NUM_SHIFT); |
| } |
| be_txq_notify(adapter, txo, txo->pend_wrb_cnt); |
| txo->pend_wrb_cnt = 0; |
| } |
| |
| /* OS2BMC related */ |
| |
| #define DHCP_CLIENT_PORT 68 |
| #define DHCP_SERVER_PORT 67 |
| #define NET_BIOS_PORT1 137 |
| #define NET_BIOS_PORT2 138 |
| #define DHCPV6_RAS_PORT 547 |
| |
| #define is_mc_allowed_on_bmc(adapter, eh) \ |
| (!is_multicast_filt_enabled(adapter) && \ |
| is_multicast_ether_addr(eh->h_dest) && \ |
| !is_broadcast_ether_addr(eh->h_dest)) |
| |
| #define is_bc_allowed_on_bmc(adapter, eh) \ |
| (!is_broadcast_filt_enabled(adapter) && \ |
| is_broadcast_ether_addr(eh->h_dest)) |
| |
| #define is_arp_allowed_on_bmc(adapter, skb) \ |
| (is_arp(skb) && is_arp_filt_enabled(adapter)) |
| |
| #define is_broadcast_packet(eh, adapter) \ |
| (is_multicast_ether_addr(eh->h_dest) && \ |
| !compare_ether_addr(eh->h_dest, adapter->netdev->broadcast)) |
| |
| #define is_arp(skb) (skb->protocol == htons(ETH_P_ARP)) |
| |
| #define is_arp_filt_enabled(adapter) \ |
| (adapter->bmc_filt_mask & (BMC_FILT_BROADCAST_ARP)) |
| |
| #define is_dhcp_client_filt_enabled(adapter) \ |
| (adapter->bmc_filt_mask & BMC_FILT_BROADCAST_DHCP_CLIENT) |
| |
| #define is_dhcp_srvr_filt_enabled(adapter) \ |
| (adapter->bmc_filt_mask & BMC_FILT_BROADCAST_DHCP_SERVER) |
| |
| #define is_nbios_filt_enabled(adapter) \ |
| (adapter->bmc_filt_mask & BMC_FILT_BROADCAST_NET_BIOS) |
| |
| #define is_ipv6_na_filt_enabled(adapter) \ |
| (adapter->bmc_filt_mask & \ |
| BMC_FILT_MULTICAST_IPV6_NEIGH_ADVER) |
| |
| #define is_ipv6_ra_filt_enabled(adapter) \ |
| (adapter->bmc_filt_mask & BMC_FILT_MULTICAST_IPV6_RA) |
| |
| #define is_ipv6_ras_filt_enabled(adapter) \ |
| (adapter->bmc_filt_mask & BMC_FILT_MULTICAST_IPV6_RAS) |
| |
| #define is_broadcast_filt_enabled(adapter) \ |
| (adapter->bmc_filt_mask & BMC_FILT_BROADCAST) |
| |
| #define is_multicast_filt_enabled(adapter) \ |
| (adapter->bmc_filt_mask & BMC_FILT_MULTICAST) |
| |
| static bool be_send_pkt_to_bmc(struct be_adapter *adapter, |
| struct sk_buff **skb) |
| { |
| struct ethhdr *eh = (struct ethhdr *)(*skb)->data; |
| bool os2bmc = false; |
| |
| if (!be_is_os2bmc_enabled(adapter)) |
| goto done; |
| |
| if (!is_multicast_ether_addr(eh->h_dest)) |
| goto done; |
| |
| if (is_mc_allowed_on_bmc(adapter, eh) || |
| is_bc_allowed_on_bmc(adapter, eh) || |
| is_arp_allowed_on_bmc(adapter, (*skb))) { |
| os2bmc = true; |
| goto done; |
| } |
| |
| if ((*skb)->protocol == htons(ETH_P_IPV6)) { |
| struct ipv6hdr *hdr = ipv6_hdr((*skb)); |
| u8 nexthdr = hdr->nexthdr; |
| |
| if (nexthdr == IPPROTO_ICMPV6) { |
| struct icmp6hdr *icmp6 = icmp6_hdr((*skb)); |
| |
| switch (icmp6->icmp6_type) { |
| case NDISC_ROUTER_ADVERTISEMENT: |
| os2bmc = is_ipv6_ra_filt_enabled(adapter); |
| goto done; |
| case NDISC_NEIGHBOUR_ADVERTISEMENT: |
| os2bmc = is_ipv6_na_filt_enabled(adapter); |
| goto done; |
| default: |
| break; |
| } |
| } |
| } |
| |
| if (is_udp_pkt((*skb))) { |
| struct udphdr *udp = udp_hdr((*skb)); |
| |
| switch (udp->dest) { |
| case DHCP_CLIENT_PORT: |
| os2bmc = is_dhcp_client_filt_enabled(adapter); |
| goto done; |
| case DHCP_SERVER_PORT: |
| os2bmc = is_dhcp_srvr_filt_enabled(adapter); |
| goto done; |
| case NET_BIOS_PORT1: |
| case NET_BIOS_PORT2: |
| os2bmc = is_nbios_filt_enabled(adapter); |
| goto done; |
| case DHCPV6_RAS_PORT: |
| os2bmc = is_ipv6_ras_filt_enabled(adapter); |
| goto done; |
| default: |
| break; |
| } |
| } |
| done: |
| /* For packets over a vlan, which are destined |
| * to BMC, asic expects the vlan to be inline in the packet. |
| */ |
| if (os2bmc) |
| *skb = be_insert_vlan_in_pkt(adapter, *skb, NULL); |
| |
| return os2bmc; |
| } |
| |
| static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| u16 q_idx = skb_get_queue_mapping(skb); |
| struct be_tx_obj *txo = &adapter->tx_obj[q_idx]; |
| struct be_wrb_params wrb_params = { 0 }; |
| bool flush = !skb->xmit_more; |
| u16 wrb_cnt; |
| |
| skb = be_xmit_workarounds(adapter, skb, &wrb_params); |
| if (unlikely(!skb)) |
| goto drop; |
| |
| be_get_wrb_params_from_skb(adapter, skb, &wrb_params); |
| |
| wrb_cnt = be_xmit_enqueue(adapter, txo, skb, &wrb_params); |
| if (unlikely(!wrb_cnt)) { |
| dev_kfree_skb_any(skb); |
| goto drop; |
| } |
| |
| /* if os2bmc is enabled and if the pkt is destined to bmc, |
| * enqueue the pkt a 2nd time with mgmt bit set. |
| */ |
| if (be_send_pkt_to_bmc(adapter, &skb)) { |
| BE_WRB_F_SET(wrb_params.features, OS2BMC, 1); |
| wrb_cnt = be_xmit_enqueue(adapter, txo, skb, &wrb_params); |
| if (unlikely(!wrb_cnt)) |
| goto drop; |
| else |
| skb_get(skb); |
| } |
| |
| if (be_is_txq_full(txo)) { |
| netif_stop_subqueue(netdev, q_idx); |
| tx_stats(txo)->tx_stops++; |
| } |
| |
| if (flush || __netif_subqueue_stopped(netdev, q_idx)) |
| be_xmit_flush(adapter, txo); |
| |
| return NETDEV_TX_OK; |
| drop: |
| tx_stats(txo)->tx_drv_drops++; |
| /* Flush the already enqueued tx requests */ |
| if (flush && txo->pend_wrb_cnt) |
| be_xmit_flush(adapter, txo); |
| |
| return NETDEV_TX_OK; |
| } |
| |
| static int be_change_mtu(struct net_device *netdev, int new_mtu) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct device *dev = &adapter->pdev->dev; |
| |
| if (new_mtu < BE_MIN_MTU || new_mtu > BE_MAX_MTU) { |
| dev_info(dev, "MTU must be between %d and %d bytes\n", |
| BE_MIN_MTU, BE_MAX_MTU); |
| return -EINVAL; |
| } |
| |
| dev_info(dev, "MTU changed from %d to %d bytes\n", |
| netdev->mtu, new_mtu); |
| netdev->mtu = new_mtu; |
| return 0; |
| } |
| |
| static inline bool be_in_all_promisc(struct be_adapter *adapter) |
| { |
| return (adapter->if_flags & BE_IF_FLAGS_ALL_PROMISCUOUS) == |
| BE_IF_FLAGS_ALL_PROMISCUOUS; |
| } |
| |
| static int be_set_vlan_promisc(struct be_adapter *adapter) |
| { |
| struct device *dev = &adapter->pdev->dev; |
| int status; |
| |
| if (adapter->if_flags & BE_IF_FLAGS_VLAN_PROMISCUOUS) |
| return 0; |
| |
| status = be_cmd_rx_filter(adapter, BE_IF_FLAGS_VLAN_PROMISCUOUS, ON); |
| if (!status) { |
| dev_info(dev, "Enabled VLAN promiscuous mode\n"); |
| adapter->if_flags |= BE_IF_FLAGS_VLAN_PROMISCUOUS; |
| } else { |
| dev_err(dev, "Failed to enable VLAN promiscuous mode\n"); |
| } |
| return status; |
| } |
| |
| static int be_clear_vlan_promisc(struct be_adapter *adapter) |
| { |
| struct device *dev = &adapter->pdev->dev; |
| int status; |
| |
| status = be_cmd_rx_filter(adapter, BE_IF_FLAGS_VLAN_PROMISCUOUS, OFF); |
| if (!status) { |
| dev_info(dev, "Disabling VLAN promiscuous mode\n"); |
| adapter->if_flags &= ~BE_IF_FLAGS_VLAN_PROMISCUOUS; |
| } |
| return status; |
| } |
| |
| /* |
| * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE. |
| * If the user configures more, place BE in vlan promiscuous mode. |
| */ |
| static int be_vid_config(struct be_adapter *adapter) |
| { |
| struct device *dev = &adapter->pdev->dev; |
| u16 vids[BE_NUM_VLANS_SUPPORTED]; |
| u16 num = 0, i = 0; |
| int status = 0; |
| |
| /* No need to further configure vids if in promiscuous mode */ |
| if (be_in_all_promisc(adapter)) |
| return 0; |
| |
| if (adapter->vlans_added > be_max_vlans(adapter)) |
| return be_set_vlan_promisc(adapter); |
| |
| /* Construct VLAN Table to give to HW */ |
| for_each_set_bit(i, adapter->vids, VLAN_N_VID) |
| vids[num++] = cpu_to_le16(i); |
| |
| status = be_cmd_vlan_config(adapter, adapter->if_handle, vids, num, 0); |
| if (status) { |
| dev_err(dev, "Setting HW VLAN filtering failed\n"); |
| /* Set to VLAN promisc mode as setting VLAN filter failed */ |
| if (addl_status(status) == MCC_ADDL_STATUS_INSUFFICIENT_VLANS || |
| addl_status(status) == |
| MCC_ADDL_STATUS_INSUFFICIENT_RESOURCES) |
| return be_set_vlan_promisc(adapter); |
| } else if (adapter->if_flags & BE_IF_FLAGS_VLAN_PROMISCUOUS) { |
| status = be_clear_vlan_promisc(adapter); |
| } |
| return status; |
| } |
| |
| static int be_vlan_add_vid(struct net_device *netdev, __be16 proto, u16 vid) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| int status = 0; |
| |
| /* Packets with VID 0 are always received by Lancer by default */ |
| if (lancer_chip(adapter) && vid == 0) |
| return status; |
| |
| if (test_bit(vid, adapter->vids)) |
| return status; |
| |
| set_bit(vid, adapter->vids); |
| adapter->vlans_added++; |
| |
| status = be_vid_config(adapter); |
| if (status) { |
| adapter->vlans_added--; |
| clear_bit(vid, adapter->vids); |
| } |
| |
| return status; |
| } |
| |
| static int be_vlan_rem_vid(struct net_device *netdev, __be16 proto, u16 vid) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| |
| /* Packets with VID 0 are always received by Lancer by default */ |
| if (lancer_chip(adapter) && vid == 0) |
| return 0; |
| |
| clear_bit(vid, adapter->vids); |
| adapter->vlans_added--; |
| |
| return be_vid_config(adapter); |
| } |
| |
| static void be_clear_all_promisc(struct be_adapter *adapter) |
| { |
| be_cmd_rx_filter(adapter, BE_IF_FLAGS_ALL_PROMISCUOUS, OFF); |
| adapter->if_flags &= ~BE_IF_FLAGS_ALL_PROMISCUOUS; |
| } |
| |
| static void be_set_all_promisc(struct be_adapter *adapter) |
| { |
| be_cmd_rx_filter(adapter, BE_IF_FLAGS_ALL_PROMISCUOUS, ON); |
| adapter->if_flags |= BE_IF_FLAGS_ALL_PROMISCUOUS; |
| } |
| |
| static void be_set_mc_promisc(struct be_adapter *adapter) |
| { |
| int status; |
| |
| if (adapter->if_flags & BE_IF_FLAGS_MCAST_PROMISCUOUS) |
| return; |
| |
| status = be_cmd_rx_filter(adapter, BE_IF_FLAGS_MCAST_PROMISCUOUS, ON); |
| if (!status) |
| adapter->if_flags |= BE_IF_FLAGS_MCAST_PROMISCUOUS; |
| } |
| |
| static void be_set_mc_list(struct be_adapter *adapter) |
| { |
| int status; |
| |
| status = be_cmd_rx_filter(adapter, BE_IF_FLAGS_MULTICAST, ON); |
| if (!status) |
| adapter->if_flags &= ~BE_IF_FLAGS_MCAST_PROMISCUOUS; |
| else |
| be_set_mc_promisc(adapter); |
| } |
| |
| static void be_set_uc_list(struct be_adapter *adapter) |
| { |
| struct netdev_hw_addr *ha; |
| int i = 1; /* First slot is claimed by the Primary MAC */ |
| |
| for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) |
| be_cmd_pmac_del(adapter, adapter->if_handle, |
| adapter->pmac_id[i], 0); |
| |
| if (netdev_uc_count(adapter->netdev) > be_max_uc(adapter)) { |
| be_set_all_promisc(adapter); |
| return; |
| } |
| |
| netdev_for_each_uc_addr(ha, adapter->netdev) { |
| adapter->uc_macs++; /* First slot is for Primary MAC */ |
| be_cmd_pmac_add(adapter, (u8 *)ha->addr, adapter->if_handle, |
| &adapter->pmac_id[adapter->uc_macs], 0); |
| } |
| } |
| |
| static void be_clear_uc_list(struct be_adapter *adapter) |
| { |
| int i; |
| |
| for (i = 1; i < (adapter->uc_macs + 1); i++) |
| be_cmd_pmac_del(adapter, adapter->if_handle, |
| adapter->pmac_id[i], 0); |
| adapter->uc_macs = 0; |
| } |
| |
| static void be_set_rx_mode(struct net_device *netdev) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| |
| if (netdev->flags & IFF_PROMISC) { |
| be_set_all_promisc(adapter); |
| return; |
| } |
| |
| /* Interface was previously in promiscuous mode; disable it */ |
| if (be_in_all_promisc(adapter)) { |
| be_clear_all_promisc(adapter); |
| if (adapter->vlans_added) |
| be_vid_config(adapter); |
| } |
| |
| /* Enable multicast promisc if num configured exceeds what we support */ |
| if (netdev->flags & IFF_ALLMULTI || |
| netdev_mc_count(netdev) > be_max_mc(adapter)) { |
| be_set_mc_promisc(adapter); |
| return; |
| } |
| |
| if (netdev_uc_count(netdev) != adapter->uc_macs) |
| be_set_uc_list(adapter); |
| |
| be_set_mc_list(adapter); |
| } |
| |
| static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf]; |
| int status; |
| |
| if (!sriov_enabled(adapter)) |
| return -EPERM; |
| |
| if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs) |
| return -EINVAL; |
| |
| /* Proceed further only if user provided MAC is different |
| * from active MAC |
| */ |
| if (ether_addr_equal(mac, vf_cfg->mac_addr)) |
| return 0; |
| |
| if (BEx_chip(adapter)) { |
| be_cmd_pmac_del(adapter, vf_cfg->if_handle, vf_cfg->pmac_id, |
| vf + 1); |
| |
| status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle, |
| &vf_cfg->pmac_id, vf + 1); |
| } else { |
| status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle, |
| vf + 1); |
| } |
| |
| if (status) { |
| dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed: %#x", |
| mac, vf, status); |
| return be_cmd_status(status); |
| } |
| |
| ether_addr_copy(vf_cfg->mac_addr, mac); |
| |
| return 0; |
| } |
| |
| static int be_get_vf_config(struct net_device *netdev, int vf, |
| struct ifla_vf_info *vi) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf]; |
| |
| if (!sriov_enabled(adapter)) |
| return -EPERM; |
| |
| if (vf >= adapter->num_vfs) |
| return -EINVAL; |
| |
| vi->vf = vf; |
| vi->max_tx_rate = vf_cfg->tx_rate; |
| vi->min_tx_rate = 0; |
| vi->vlan = vf_cfg->vlan_tag & VLAN_VID_MASK; |
| vi->qos = vf_cfg->vlan_tag >> VLAN_PRIO_SHIFT; |
| memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN); |
| vi->linkstate = adapter->vf_cfg[vf].plink_tracking; |
| vi->spoofchk = adapter->vf_cfg[vf].spoofchk; |
| |
| return 0; |
| } |
| |
| static int be_set_vf_tvt(struct be_adapter *adapter, int vf, u16 vlan) |
| { |
| struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf]; |
| u16 vids[BE_NUM_VLANS_SUPPORTED]; |
| int vf_if_id = vf_cfg->if_handle; |
| int status; |
| |
| /* Enable Transparent VLAN Tagging */ |
| status = be_cmd_set_hsw_config(adapter, vlan, vf + 1, vf_if_id, 0, 0); |
| if (status) |
| return status; |
| |
| /* Clear pre-programmed VLAN filters on VF if any, if TVT is enabled */ |
| vids[0] = 0; |
| status = be_cmd_vlan_config(adapter, vf_if_id, vids, 1, vf + 1); |
| if (!status) |
| dev_info(&adapter->pdev->dev, |
| "Cleared guest VLANs on VF%d", vf); |
| |
| /* After TVT is enabled, disallow VFs to program VLAN filters */ |
| if (vf_cfg->privileges & BE_PRIV_FILTMGMT) { |
| status = be_cmd_set_fn_privileges(adapter, vf_cfg->privileges & |
| ~BE_PRIV_FILTMGMT, vf + 1); |
| if (!status) |
| vf_cfg->privileges &= ~BE_PRIV_FILTMGMT; |
| } |
| return 0; |
| } |
| |
| static int be_clear_vf_tvt(struct be_adapter *adapter, int vf) |
| { |
| struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf]; |
| struct device *dev = &adapter->pdev->dev; |
| int status; |
| |
| /* Reset Transparent VLAN Tagging. */ |
| status = be_cmd_set_hsw_config(adapter, BE_RESET_VLAN_TAG_ID, vf + 1, |
| vf_cfg->if_handle, 0, 0); |
| if (status) |
| return status; |
| |
| /* Allow VFs to program VLAN filtering */ |
| if (!(vf_cfg->privileges & BE_PRIV_FILTMGMT)) { |
| status = be_cmd_set_fn_privileges(adapter, vf_cfg->privileges | |
| BE_PRIV_FILTMGMT, vf + 1); |
| if (!status) { |
| vf_cfg->privileges |= BE_PRIV_FILTMGMT; |
| dev_info(dev, "VF%d: FILTMGMT priv enabled", vf); |
| } |
| } |
| |
| dev_info(dev, |
| "Disable/re-enable i/f in VM to clear Transparent VLAN tag"); |
| return 0; |
| } |
| |
| static int be_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf]; |
| int status; |
| |
| if (!sriov_enabled(adapter)) |
| return -EPERM; |
| |
| if (vf >= adapter->num_vfs || vlan > 4095 || qos > 7) |
| return -EINVAL; |
| |
| if (vlan || qos) { |
| vlan |= qos << VLAN_PRIO_SHIFT; |
| status = be_set_vf_tvt(adapter, vf, vlan); |
| } else { |
| status = be_clear_vf_tvt(adapter, vf); |
| } |
| |
| if (status) { |
| dev_err(&adapter->pdev->dev, |
| "VLAN %d config on VF %d failed : %#x\n", vlan, vf, |
| status); |
| return be_cmd_status(status); |
| } |
| |
| vf_cfg->vlan_tag = vlan; |
| return 0; |
| } |
| |
| static int be_set_vf_tx_rate(struct net_device *netdev, int vf, |
| int min_tx_rate, int max_tx_rate) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct device *dev = &adapter->pdev->dev; |
| int percent_rate, status = 0; |
| u16 link_speed = 0; |
| u8 link_status; |
| |
| if (!sriov_enabled(adapter)) |
| return -EPERM; |
| |
| if (vf >= adapter->num_vfs) |
| return -EINVAL; |
| |
| if (min_tx_rate) |
| return -EINVAL; |
| |
| if (!max_tx_rate) |
| goto config_qos; |
| |
| status = be_cmd_link_status_query(adapter, &link_speed, |
| &link_status, 0); |
| if (status) |
| goto err; |
| |
| if (!link_status) { |
| dev_err(dev, "TX-rate setting not allowed when link is down\n"); |
| status = -ENETDOWN; |
| goto err; |
| } |
| |
| if (max_tx_rate < 100 || max_tx_rate > link_speed) { |
| dev_err(dev, "TX-rate must be between 100 and %d Mbps\n", |
| link_speed); |
| status = -EINVAL; |
| goto err; |
| } |
| |
| /* On Skyhawk the QOS setting must be done only as a % value */ |
| percent_rate = link_speed / 100; |
| if (skyhawk_chip(adapter) && (max_tx_rate % percent_rate)) { |
| dev_err(dev, "TX-rate must be a multiple of %d Mbps\n", |
| percent_rate); |
| status = -EINVAL; |
| goto err; |
| } |
| |
| config_qos: |
| status = be_cmd_config_qos(adapter, max_tx_rate, link_speed, vf + 1); |
| if (status) |
| goto err; |
| |
| adapter->vf_cfg[vf].tx_rate = max_tx_rate; |
| return 0; |
| |
| err: |
| dev_err(dev, "TX-rate setting of %dMbps on VF%d failed\n", |
| max_tx_rate, vf); |
| return be_cmd_status(status); |
| } |
| |
| static int be_set_vf_link_state(struct net_device *netdev, int vf, |
| int link_state) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| int status; |
| |
| if (!sriov_enabled(adapter)) |
| return -EPERM; |
| |
| if (vf >= adapter->num_vfs) |
| return -EINVAL; |
| |
| status = be_cmd_set_logical_link_config(adapter, link_state, vf+1); |
| if (status) { |
| dev_err(&adapter->pdev->dev, |
| "Link state change on VF %d failed: %#x\n", vf, status); |
| return be_cmd_status(status); |
| } |
| |
| adapter->vf_cfg[vf].plink_tracking = link_state; |
| |
| return 0; |
| } |
| |
| static int be_set_vf_spoofchk(struct net_device *netdev, int vf, bool enable) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf]; |
| u8 spoofchk; |
| int status; |
| |
| if (!sriov_enabled(adapter)) |
| return -EPERM; |
| |
| if (vf >= adapter->num_vfs) |
| return -EINVAL; |
| |
| if (BEx_chip(adapter)) |
| return -EOPNOTSUPP; |
| |
| if (enable == vf_cfg->spoofchk) |
| return 0; |
| |
| spoofchk = enable ? ENABLE_MAC_SPOOFCHK : DISABLE_MAC_SPOOFCHK; |
| |
| status = be_cmd_set_hsw_config(adapter, 0, vf + 1, vf_cfg->if_handle, |
| 0, spoofchk); |
| if (status) { |
| dev_err(&adapter->pdev->dev, |
| "Spoofchk change on VF %d failed: %#x\n", vf, status); |
| return be_cmd_status(status); |
| } |
| |
| vf_cfg->spoofchk = enable; |
| return 0; |
| } |
| |
| static void be_aic_update(struct be_aic_obj *aic, u64 rx_pkts, u64 tx_pkts, |
| ulong now) |
| { |
| aic->rx_pkts_prev = rx_pkts; |
| aic->tx_reqs_prev = tx_pkts; |
| aic->jiffies = now; |
| } |
| |
| static int be_get_new_eqd(struct be_eq_obj *eqo) |
| { |
| struct be_adapter *adapter = eqo->adapter; |
| int eqd, start; |
| struct be_aic_obj *aic; |
| struct be_rx_obj *rxo; |
| struct be_tx_obj *txo; |
| u64 rx_pkts = 0, tx_pkts = 0; |
| ulong now; |
| u32 pps, delta; |
| int i; |
| |
| aic = &adapter->aic_obj[eqo->idx]; |
| if (!aic->enable) { |
| if (aic->jiffies) |
| aic->jiffies = 0; |
| eqd = aic->et_eqd; |
| return eqd; |
| } |
| |
| for_all_rx_queues_on_eq(adapter, eqo, rxo, i) { |
| do { |
| start = u64_stats_fetch_begin_irq(&rxo->stats.sync); |
| rx_pkts += rxo->stats.rx_pkts; |
| } while (u64_stats_fetch_retry_irq(&rxo->stats.sync, start)); |
| } |
| |
| for_all_tx_queues_on_eq(adapter, eqo, txo, i) { |
| do { |
| start = u64_stats_fetch_begin_irq(&txo->stats.sync); |
| tx_pkts += txo->stats.tx_reqs; |
| } while (u64_stats_fetch_retry_irq(&txo->stats.sync, start)); |
| } |
| |
| /* Skip, if wrapped around or first calculation */ |
| now = jiffies; |
| if (!aic->jiffies || time_before(now, aic->jiffies) || |
| rx_pkts < aic->rx_pkts_prev || |
| tx_pkts < aic->tx_reqs_prev) { |
| be_aic_update(aic, rx_pkts, tx_pkts, now); |
| return aic->prev_eqd; |
| } |
| |
| delta = jiffies_to_msecs(now - aic->jiffies); |
| if (delta == 0) |
| return aic->prev_eqd; |
| |
| pps = (((u32)(rx_pkts - aic->rx_pkts_prev) * 1000) / delta) + |
| (((u32)(tx_pkts - aic->tx_reqs_prev) * 1000) / delta); |
| eqd = (pps / 15000) << 2; |
| |
| if (eqd < 8) |
| eqd = 0; |
| eqd = min_t(u32, eqd, aic->max_eqd); |
| eqd = max_t(u32, eqd, aic->min_eqd); |
| |
| be_aic_update(aic, rx_pkts, tx_pkts, now); |
| |
| return eqd; |
| } |
| |
| /* For Skyhawk-R only */ |
| static u32 be_get_eq_delay_mult_enc(struct be_eq_obj *eqo) |
| { |
| struct be_adapter *adapter = eqo->adapter; |
| struct be_aic_obj *aic = &adapter->aic_obj[eqo->idx]; |
| ulong now = jiffies; |
| int eqd; |
| u32 mult_enc; |
| |
| if (!aic->enable) |
| return 0; |
| |
| if (time_before_eq(now, aic->jiffies) || |
| jiffies_to_msecs(now - aic->jiffies) < 1) |
| eqd = aic->prev_eqd; |
| else |
| eqd = be_get_new_eqd(eqo); |
| |
| if (eqd > 100) |
| mult_enc = R2I_DLY_ENC_1; |
| else if (eqd > 60) |
| mult_enc = R2I_DLY_ENC_2; |
| else if (eqd > 20) |
| mult_enc = R2I_DLY_ENC_3; |
| else |
| mult_enc = R2I_DLY_ENC_0; |
| |
| aic->prev_eqd = eqd; |
| |
| return mult_enc; |
| } |
| |
| void be_eqd_update(struct be_adapter *adapter, bool force_update) |
| { |
| struct be_set_eqd set_eqd[MAX_EVT_QS]; |
| struct be_aic_obj *aic; |
| struct be_eq_obj *eqo; |
| int i, num = 0, eqd; |
| |
| for_all_evt_queues(adapter, eqo, i) { |
| aic = &adapter->aic_obj[eqo->idx]; |
| eqd = be_get_new_eqd(eqo); |
| if (force_update || eqd != aic->prev_eqd) { |
| set_eqd[num].delay_multiplier = (eqd * 65)/100; |
| set_eqd[num].eq_id = eqo->q.id; |
| aic->prev_eqd = eqd; |
| num++; |
| } |
| } |
| |
| if (num) |
| be_cmd_modify_eqd(adapter, set_eqd, num); |
| } |
| |
| static void be_rx_stats_update(struct be_rx_obj *rxo, |
| struct be_rx_compl_info *rxcp) |
| { |
| struct be_rx_stats *stats = rx_stats(rxo); |
| |
| u64_stats_update_begin(&stats->sync); |
| stats->rx_compl++; |
| stats->rx_bytes += rxcp->pkt_size; |
| stats->rx_pkts++; |
| if (rxcp->pkt_type == BE_MULTICAST_PACKET) |
| stats->rx_mcast_pkts++; |
| if (rxcp->err) |
| stats->rx_compl_err++; |
| u64_stats_update_end(&stats->sync); |
| } |
| |
| static inline bool csum_passed(struct be_rx_compl_info *rxcp) |
| { |
| /* L4 checksum is not reliable for non TCP/UDP packets. |
| * Also ignore ipcksm for ipv6 pkts |
| */ |
| return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum && |
| (rxcp->ip_csum || rxcp->ipv6) && !rxcp->err; |
| } |
| |
| static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo) |
| { |
| struct be_adapter *adapter = rxo->adapter; |
| struct be_rx_page_info *rx_page_info; |
| struct be_queue_info *rxq = &rxo->q; |
| u16 frag_idx = rxq->tail; |
| |
| rx_page_info = &rxo->page_info_tbl[frag_idx]; |
| BUG_ON(!rx_page_info->page); |
| |
| if (rx_page_info->last_frag) { |
| dma_unmap_page(&adapter->pdev->dev, |
| dma_unmap_addr(rx_page_info, bus), |
| adapter->big_page_size, DMA_FROM_DEVICE); |
| rx_page_info->last_frag = false; |
| } else { |
| dma_sync_single_for_cpu(&adapter->pdev->dev, |
| dma_unmap_addr(rx_page_info, bus), |
| rx_frag_size, DMA_FROM_DEVICE); |
| } |
| |
| queue_tail_inc(rxq); |
| atomic_dec(&rxq->used); |
| return rx_page_info; |
| } |
| |
| /* Throwaway the data in the Rx completion */ |
| static void be_rx_compl_discard(struct be_rx_obj *rxo, |
| struct be_rx_compl_info *rxcp) |
| { |
| struct be_rx_page_info *page_info; |
| u16 i, num_rcvd = rxcp->num_rcvd; |
| |
| for (i = 0; i < num_rcvd; i++) { |
| page_info = get_rx_page_info(rxo); |
| put_page(page_info->page); |
| memset(page_info, 0, sizeof(*page_info)); |
| } |
| } |
| |
| /* |
| * skb_fill_rx_data forms a complete skb for an ether frame |
| * indicated by rxcp. |
| */ |
| static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb, |
| struct be_rx_compl_info *rxcp) |
| { |
| struct be_rx_page_info *page_info; |
| u16 i, j; |
| u16 hdr_len, curr_frag_len, remaining; |
| u8 *start; |
| |
| page_info = get_rx_page_info(rxo); |
| start = page_address(page_info->page) + page_info->page_offset; |
| prefetch(start); |
| |
| /* Copy data in the first descriptor of this completion */ |
| curr_frag_len = min(rxcp->pkt_size, rx_frag_size); |
| |
| skb->len = curr_frag_len; |
| if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */ |
| memcpy(skb->data, start, curr_frag_len); |
| /* Complete packet has now been moved to data */ |
| put_page(page_info->page); |
| skb->data_len = 0; |
| skb->tail += curr_frag_len; |
| } else { |
| hdr_len = ETH_HLEN; |
| memcpy(skb->data, start, hdr_len); |
| skb_shinfo(skb)->nr_frags = 1; |
| skb_frag_set_page(skb, 0, page_info->page); |
| skb_shinfo(skb)->frags[0].page_offset = |
| page_info->page_offset + hdr_len; |
| skb_frag_size_set(&skb_shinfo(skb)->frags[0], |
| curr_frag_len - hdr_len); |
| skb->data_len = curr_frag_len - hdr_len; |
| skb->truesize += rx_frag_size; |
| skb->tail += hdr_len; |
| } |
| page_info->page = NULL; |
| |
| if (rxcp->pkt_size <= rx_frag_size) { |
| BUG_ON(rxcp->num_rcvd != 1); |
| return; |
| } |
| |
| /* More frags present for this completion */ |
| remaining = rxcp->pkt_size - curr_frag_len; |
| for (i = 1, j = 0; i < rxcp->num_rcvd; i++) { |
| page_info = get_rx_page_info(rxo); |
| curr_frag_len = min(remaining, rx_frag_size); |
| |
| /* Coalesce all frags from the same physical page in one slot */ |
| if (page_info->page_offset == 0) { |
| /* Fresh page */ |
| j++; |
| skb_frag_set_page(skb, j, page_info->page); |
| skb_shinfo(skb)->frags[j].page_offset = |
| page_info->page_offset; |
| skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0); |
| skb_shinfo(skb)->nr_frags++; |
| } else { |
| put_page(page_info->page); |
| } |
| |
| skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len); |
| skb->len += curr_frag_len; |
| skb->data_len += curr_frag_len; |
| skb->truesize += rx_frag_size; |
| remaining -= curr_frag_len; |
| page_info->page = NULL; |
| } |
| BUG_ON(j > MAX_SKB_FRAGS); |
| } |
| |
| /* Process the RX completion indicated by rxcp when GRO is disabled */ |
| static void be_rx_compl_process(struct be_rx_obj *rxo, struct napi_struct *napi, |
| struct be_rx_compl_info *rxcp) |
| { |
| struct be_adapter *adapter = rxo->adapter; |
| struct net_device *netdev = adapter->netdev; |
| struct sk_buff *skb; |
| |
| skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE); |
| if (unlikely(!skb)) { |
| rx_stats(rxo)->rx_drops_no_skbs++; |
| be_rx_compl_discard(rxo, rxcp); |
| return; |
| } |
| |
| skb_fill_rx_data(rxo, skb, rxcp); |
| |
| if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp))) |
| skb->ip_summed = CHECKSUM_UNNECESSARY; |
| else |
| skb_checksum_none_assert(skb); |
| |
| skb->protocol = eth_type_trans(skb, netdev); |
| skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]); |
| if (netdev->features & NETIF_F_RXHASH) |
| skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3); |
| |
| skb->csum_level = rxcp->tunneled; |
| skb_mark_napi_id(skb, napi); |
| |
| if (rxcp->vlanf) |
| __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag); |
| |
| netif_receive_skb(skb); |
| } |
| |
| /* Process the RX completion indicated by rxcp when GRO is enabled */ |
| static void be_rx_compl_process_gro(struct be_rx_obj *rxo, |
| struct napi_struct *napi, |
| struct be_rx_compl_info *rxcp) |
| { |
| struct be_adapter *adapter = rxo->adapter; |
| struct be_rx_page_info *page_info; |
| struct sk_buff *skb = NULL; |
| u16 remaining, curr_frag_len; |
| u16 i, j; |
| |
| skb = napi_get_frags(napi); |
| if (!skb) { |
| be_rx_compl_discard(rxo, rxcp); |
| return; |
| } |
| |
| remaining = rxcp->pkt_size; |
| for (i = 0, j = -1; i < rxcp->num_rcvd; i++) { |
| page_info = get_rx_page_info(rxo); |
| |
| curr_frag_len = min(remaining, rx_frag_size); |
| |
| /* Coalesce all frags from the same physical page in one slot */ |
| if (i == 0 || page_info->page_offset == 0) { |
| /* First frag or Fresh page */ |
| j++; |
| skb_frag_set_page(skb, j, page_info->page); |
| skb_shinfo(skb)->frags[j].page_offset = |
| page_info->page_offset; |
| skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0); |
| } else { |
| put_page(page_info->page); |
| } |
| skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len); |
| skb->truesize += rx_frag_size; |
| remaining -= curr_frag_len; |
| memset(page_info, 0, sizeof(*page_info)); |
| } |
| BUG_ON(j > MAX_SKB_FRAGS); |
| |
| skb_shinfo(skb)->nr_frags = j + 1; |
| skb->len = rxcp->pkt_size; |
| skb->data_len = rxcp->pkt_size; |
| skb->ip_summed = CHECKSUM_UNNECESSARY; |
| skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]); |
| if (adapter->netdev->features & NETIF_F_RXHASH) |
| skb_set_hash(skb, rxcp->rss_hash, PKT_HASH_TYPE_L3); |
| |
| skb->csum_level = rxcp->tunneled; |
| skb_mark_napi_id(skb, napi); |
| |
| if (rxcp->vlanf) |
| __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag); |
| |
| napi_gro_frags(napi); |
| } |
| |
| static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl, |
| struct be_rx_compl_info *rxcp) |
| { |
| rxcp->pkt_size = GET_RX_COMPL_V1_BITS(pktsize, compl); |
| rxcp->vlanf = GET_RX_COMPL_V1_BITS(vtp, compl); |
| rxcp->err = GET_RX_COMPL_V1_BITS(err, compl); |
| rxcp->tcpf = GET_RX_COMPL_V1_BITS(tcpf, compl); |
| rxcp->udpf = GET_RX_COMPL_V1_BITS(udpf, compl); |
| rxcp->ip_csum = GET_RX_COMPL_V1_BITS(ipcksm, compl); |
| rxcp->l4_csum = GET_RX_COMPL_V1_BITS(l4_cksm, compl); |
| rxcp->ipv6 = GET_RX_COMPL_V1_BITS(ip_version, compl); |
| rxcp->num_rcvd = GET_RX_COMPL_V1_BITS(numfrags, compl); |
| rxcp->pkt_type = GET_RX_COMPL_V1_BITS(cast_enc, compl); |
| rxcp->rss_hash = GET_RX_COMPL_V1_BITS(rsshash, compl); |
| if (rxcp->vlanf) { |
| rxcp->qnq = GET_RX_COMPL_V1_BITS(qnq, compl); |
| rxcp->vlan_tag = GET_RX_COMPL_V1_BITS(vlan_tag, compl); |
| } |
| rxcp->port = GET_RX_COMPL_V1_BITS(port, compl); |
| rxcp->tunneled = |
| GET_RX_COMPL_V1_BITS(tunneled, compl); |
| } |
| |
| static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl, |
| struct be_rx_compl_info *rxcp) |
| { |
| rxcp->pkt_size = GET_RX_COMPL_V0_BITS(pktsize, compl); |
| rxcp->vlanf = GET_RX_COMPL_V0_BITS(vtp, compl); |
| rxcp->err = GET_RX_COMPL_V0_BITS(err, compl); |
| rxcp->tcpf = GET_RX_COMPL_V0_BITS(tcpf, compl); |
| rxcp->udpf = GET_RX_COMPL_V0_BITS(udpf, compl); |
| rxcp->ip_csum = GET_RX_COMPL_V0_BITS(ipcksm, compl); |
| rxcp->l4_csum = GET_RX_COMPL_V0_BITS(l4_cksm, compl); |
| rxcp->ipv6 = GET_RX_COMPL_V0_BITS(ip_version, compl); |
| rxcp->num_rcvd = GET_RX_COMPL_V0_BITS(numfrags, compl); |
| rxcp->pkt_type = GET_RX_COMPL_V0_BITS(cast_enc, compl); |
| rxcp->rss_hash = GET_RX_COMPL_V0_BITS(rsshash, compl); |
| if (rxcp->vlanf) { |
| rxcp->qnq = GET_RX_COMPL_V0_BITS(qnq, compl); |
| rxcp->vlan_tag = GET_RX_COMPL_V0_BITS(vlan_tag, compl); |
| } |
| rxcp->port = GET_RX_COMPL_V0_BITS(port, compl); |
| rxcp->ip_frag = GET_RX_COMPL_V0_BITS(ip_frag, compl); |
| } |
| |
| static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo) |
| { |
| struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq); |
| struct be_rx_compl_info *rxcp = &rxo->rxcp; |
| struct be_adapter *adapter = rxo->adapter; |
| |
| /* For checking the valid bit it is Ok to use either definition as the |
| * valid bit is at the same position in both v0 and v1 Rx compl */ |
| if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0) |
| return NULL; |
| |
| rmb(); |
| be_dws_le_to_cpu(compl, sizeof(*compl)); |
| |
| if (adapter->be3_native) |
| be_parse_rx_compl_v1(compl, rxcp); |
| else |
| be_parse_rx_compl_v0(compl, rxcp); |
| |
| if (rxcp->ip_frag) |
| rxcp->l4_csum = 0; |
| |
| if (rxcp->vlanf) { |
| /* In QNQ modes, if qnq bit is not set, then the packet was |
| * tagged only with the transparent outer vlan-tag and must |
| * not be treated as a vlan packet by host |
| */ |
| if (be_is_qnq_mode(adapter) && !rxcp->qnq) |
| rxcp->vlanf = 0; |
| |
| if (!lancer_chip(adapter)) |
| rxcp->vlan_tag = swab16(rxcp->vlan_tag); |
| |
| if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) && |
| !test_bit(rxcp->vlan_tag, adapter->vids)) |
| rxcp->vlanf = 0; |
| } |
| |
| /* As the compl has been parsed, reset it; we wont touch it again */ |
| compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0; |
| |
| queue_tail_inc(&rxo->cq); |
| return rxcp; |
| } |
| |
| static inline struct page *be_alloc_pages(u32 size, gfp_t gfp) |
| { |
| u32 order = get_order(size); |
| |
| if (order > 0) |
| gfp |= __GFP_COMP; |
| return alloc_pages(gfp, order); |
| } |
| |
| /* |
| * Allocate a page, split it to fragments of size rx_frag_size and post as |
| * receive buffers to BE |
| */ |
| static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp, u32 frags_needed) |
| { |
| struct be_adapter *adapter = rxo->adapter; |
| struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL; |
| struct be_queue_info *rxq = &rxo->q; |
| struct page *pagep = NULL; |
| struct device *dev = &adapter->pdev->dev; |
| struct be_eth_rx_d *rxd; |
| u64 page_dmaaddr = 0, frag_dmaaddr; |
| u32 posted, page_offset = 0, notify = 0; |
| |
| page_info = &rxo->page_info_tbl[rxq->head]; |
| for (posted = 0; posted < frags_needed && !page_info->page; posted++) { |
| if (!pagep) { |
| pagep = be_alloc_pages(adapter->big_page_size, gfp); |
| if (unlikely(!pagep)) { |
| rx_stats(rxo)->rx_post_fail++; |
| break; |
| } |
| page_dmaaddr = dma_map_page(dev, pagep, 0, |
| adapter->big_page_size, |
| DMA_FROM_DEVICE); |
| if (dma_mapping_error(dev, page_dmaaddr)) { |
| put_page(pagep); |
| pagep = NULL; |
| adapter->drv_stats.dma_map_errors++; |
| break; |
| } |
| page_offset = 0; |
| } else { |
| get_page(pagep); |
| page_offset += rx_frag_size; |
| } |
| page_info->page_offset = page_offset; |
| page_info->page = pagep; |
| |
| rxd = queue_head_node(rxq); |
| frag_dmaaddr = page_dmaaddr + page_info->page_offset; |
| rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF); |
| rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr)); |
| |
| /* Any space left in the current big page for another frag? */ |
| if ((page_offset + rx_frag_size + rx_frag_size) > |
| adapter->big_page_size) { |
| pagep = NULL; |
| page_info->last_frag = true; |
| dma_unmap_addr_set(page_info, bus, page_dmaaddr); |
| } else { |
| dma_unmap_addr_set(page_info, bus, frag_dmaaddr); |
| } |
| |
| prev_page_info = page_info; |
| queue_head_inc(rxq); |
| page_info = &rxo->page_info_tbl[rxq->head]; |
| } |
| |
| /* Mark the last frag of a page when we break out of the above loop |
| * with no more slots available in the RXQ |
| */ |
| if (pagep) { |
| prev_page_info->last_frag = true; |
| dma_unmap_addr_set(prev_page_info, bus, page_dmaaddr); |
| } |
| |
| if (posted) { |
| atomic_add(posted, &rxq->used); |
| if (rxo->rx_post_starved) |
| rxo->rx_post_starved = false; |
| do { |
| notify = min(MAX_NUM_POST_ERX_DB, posted); |
| be_rxq_notify(adapter, rxq->id, notify); |
| posted -= notify; |
| } while (posted); |
| } else if (atomic_read(&rxq->used) == 0) { |
| /* Let be_worker replenish when memory is available */ |
| rxo->rx_post_starved = true; |
| } |
| } |
| |
| static struct be_tx_compl_info *be_tx_compl_get(struct be_tx_obj *txo) |
| { |
| struct be_queue_info *tx_cq = &txo->cq; |
| struct be_tx_compl_info *txcp = &txo->txcp; |
| struct be_eth_tx_compl *compl = queue_tail_node(tx_cq); |
| |
| if (compl->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0) |
| return NULL; |
| |
| /* Ensure load ordering of valid bit dword and other dwords below */ |
| rmb(); |
| be_dws_le_to_cpu(compl, sizeof(*compl)); |
| |
| txcp->status = GET_TX_COMPL_BITS(status, compl); |
| txcp->end_index = GET_TX_COMPL_BITS(wrb_index, compl); |
| |
| compl->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0; |
| queue_tail_inc(tx_cq); |
| return txcp; |
| } |
| |
| static u16 be_tx_compl_process(struct be_adapter *adapter, |
| struct be_tx_obj *txo, u16 last_index) |
| { |
| struct sk_buff **sent_skbs = txo->sent_skb_list; |
| struct be_queue_info *txq = &txo->q; |
| u16 frag_index, num_wrbs = 0; |
| struct sk_buff *skb = NULL; |
| bool unmap_skb_hdr = false; |
| struct be_eth_wrb *wrb; |
| |
| do { |
| if (sent_skbs[txq->tail]) { |
| /* Free skb from prev req */ |
| if (skb) |
| dev_consume_skb_any(skb); |
| skb = sent_skbs[txq->tail]; |
| sent_skbs[txq->tail] = NULL; |
| queue_tail_inc(txq); /* skip hdr wrb */ |
| num_wrbs++; |
| unmap_skb_hdr = true; |
| } |
| wrb = queue_tail_node(txq); |
| frag_index = txq->tail; |
| unmap_tx_frag(&adapter->pdev->dev, wrb, |
| (unmap_skb_hdr && skb_headlen(skb))); |
| unmap_skb_hdr = false; |
| queue_tail_inc(txq); |
| num_wrbs++; |
| } while (frag_index != last_index); |
| dev_consume_skb_any(skb); |
| |
| return num_wrbs; |
| } |
| |
| /* Return the number of events in the event queue */ |
| static inline int events_get(struct be_eq_obj *eqo) |
| { |
| struct be_eq_entry *eqe; |
| int num = 0; |
| |
| do { |
| eqe = queue_tail_node(&eqo->q); |
| if (eqe->evt == 0) |
| break; |
| |
| rmb(); |
| eqe->evt = 0; |
| num++; |
| queue_tail_inc(&eqo->q); |
| } while (true); |
| |
| return num; |
| } |
| |
| /* Leaves the EQ is disarmed state */ |
| static void be_eq_clean(struct be_eq_obj *eqo) |
| { |
| int num = events_get(eqo); |
| |
| be_eq_notify(eqo->adapter, eqo->q.id, false, true, num, 0); |
| } |
| |
| static void be_rx_cq_clean(struct be_rx_obj *rxo) |
| { |
| struct be_rx_page_info *page_info; |
| struct be_queue_info *rxq = &rxo->q; |
| struct be_queue_info *rx_cq = &rxo->cq; |
| struct be_rx_compl_info *rxcp; |
| struct be_adapter *adapter = rxo->adapter; |
| int flush_wait = 0; |
| |
| /* Consume pending rx completions. |
| * Wait for the flush completion (identified by zero num_rcvd) |
| * to arrive. Notify CQ even when there are no more CQ entries |
| * for HW to flush partially coalesced CQ entries. |
| * In Lancer, there is no need to wait for flush compl. |
| */ |
| for (;;) { |
| rxcp = be_rx_compl_get(rxo); |
| if (!rxcp) { |
| if (lancer_chip(adapter)) |
| break; |
| |
| if (flush_wait++ > 50 || |
| be_check_error(adapter, |
| BE_ERROR_HW)) { |
| dev_warn(&adapter->pdev->dev, |
| "did not receive flush compl\n"); |
| break; |
| } |
| be_cq_notify(adapter, rx_cq->id, true, 0); |
| mdelay(1); |
| } else { |
| be_rx_compl_discard(rxo, rxcp); |
| be_cq_notify(adapter, rx_cq->id, false, 1); |
| if (rxcp->num_rcvd == 0) |
| break; |
| } |
| } |
| |
| /* After cleanup, leave the CQ in unarmed state */ |
| be_cq_notify(adapter, rx_cq->id, false, 0); |
| |
| /* Then free posted rx buffers that were not used */ |
| while (atomic_read(&rxq->used) > 0) { |
| page_info = get_rx_page_info(rxo); |
| put_page(page_info->page); |
| memset(page_info, 0, sizeof(*page_info)); |
| } |
| BUG_ON(atomic_read(&rxq->used)); |
| rxq->tail = 0; |
| rxq->head = 0; |
| } |
| |
| static void be_tx_compl_clean(struct be_adapter *adapter) |
| { |
| u16 end_idx, notified_idx, cmpl = 0, timeo = 0, num_wrbs = 0; |
| struct device *dev = &adapter->pdev->dev; |
| struct be_tx_compl_info *txcp; |
| struct be_queue_info *txq; |
| struct be_tx_obj *txo; |
| int i, pending_txqs; |
| |
| /* Stop polling for compls when HW has been silent for 10ms */ |
| do { |
| pending_txqs = adapter->num_tx_qs; |
| |
| for_all_tx_queues(adapter, txo, i) { |
| cmpl = 0; |
| num_wrbs = 0; |
| txq = &txo->q; |
| while ((txcp = be_tx_compl_get(txo))) { |
| num_wrbs += |
| be_tx_compl_process(adapter, txo, |
| txcp->end_index); |
| cmpl++; |
| } |
| if (cmpl) { |
| be_cq_notify(adapter, txo->cq.id, false, cmpl); |
| atomic_sub(num_wrbs, &txq->used); |
| timeo = 0; |
| } |
| if (!be_is_tx_compl_pending(txo)) |
| pending_txqs--; |
| } |
| |
| if (pending_txqs == 0 || ++timeo > 10 || |
| be_check_error(adapter, BE_ERROR_HW)) |
| break; |
| |
| mdelay(1); |
| } while (true); |
| |
| /* Free enqueued TX that was never notified to HW */ |
| for_all_tx_queues(adapter, txo, i) { |
| txq = &txo->q; |
| |
| if (atomic_read(&txq->used)) { |
| dev_info(dev, "txq%d: cleaning %d pending tx-wrbs\n", |
| i, atomic_read(&txq->used)); |
| notified_idx = txq->tail; |
| end_idx = txq->tail; |
| index_adv(&end_idx, atomic_read(&txq->used) - 1, |
| txq->len); |
| /* Use the tx-compl process logic to handle requests |
| * that were not sent to the HW. |
| */ |
| num_wrbs = be_tx_compl_process(adapter, txo, end_idx); |
| atomic_sub(num_wrbs, &txq->used); |
| BUG_ON(atomic_read(&txq->used)); |
| txo->pend_wrb_cnt = 0; |
| /* Since hw was never notified of these requests, |
| * reset TXQ indices |
| */ |
| txq->head = notified_idx; |
| txq->tail = notified_idx; |
| } |
| } |
| } |
| |
| static void be_evt_queues_destroy(struct be_adapter *adapter) |
| { |
| struct be_eq_obj *eqo; |
| int i; |
| |
| for_all_evt_queues(adapter, eqo, i) { |
| if (eqo->q.created) { |
| be_eq_clean(eqo); |
| be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ); |
| napi_hash_del(&eqo->napi); |
| netif_napi_del(&eqo->napi); |
| } |
| free_cpumask_var(eqo->affinity_mask); |
| be_queue_free(adapter, &eqo->q); |
| } |
| } |
| |
| static int be_evt_queues_create(struct be_adapter *adapter) |
| { |
| struct be_queue_info *eq; |
| struct be_eq_obj *eqo; |
| struct be_aic_obj *aic; |
| int i, rc; |
| |
| adapter->num_evt_qs = min_t(u16, num_irqs(adapter), |
| adapter->cfg_num_qs); |
| |
| for_all_evt_queues(adapter, eqo, i) { |
| int numa_node = dev_to_node(&adapter->pdev->dev); |
| if (!zalloc_cpumask_var(&eqo->affinity_mask, GFP_KERNEL)) |
| return -ENOMEM; |
| cpumask_set_cpu(cpumask_local_spread(i, numa_node), |
| eqo->affinity_mask); |
| netif_napi_add(adapter->netdev, &eqo->napi, be_poll, |
| BE_NAPI_WEIGHT); |
| napi_hash_add(&eqo->napi); |
| aic = &adapter->aic_obj[i]; |
| eqo->adapter = adapter; |
| eqo->idx = i; |
| aic->max_eqd = BE_MAX_EQD; |
| aic->enable = true; |
| |
| eq = &eqo->q; |
| rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN, |
| sizeof(struct be_eq_entry)); |
| if (rc) |
| return rc; |
| |
| rc = be_cmd_eq_create(adapter, eqo); |
| if (rc) |
| return rc; |
| } |
| return 0; |
| } |
| |
| static void be_mcc_queues_destroy(struct be_adapter *adapter) |
| { |
| struct be_queue_info *q; |
| |
| q = &adapter->mcc_obj.q; |
| if (q->created) |
| be_cmd_q_destroy(adapter, q, QTYPE_MCCQ); |
| be_queue_free(adapter, q); |
| |
| q = &adapter->mcc_obj.cq; |
| if (q->created) |
| be_cmd_q_destroy(adapter, q, QTYPE_CQ); |
| be_queue_free(adapter, q); |
| } |
| |
| /* Must be called only after TX qs are created as MCC shares TX EQ */ |
| static int be_mcc_queues_create(struct be_adapter *adapter) |
| { |
| struct be_queue_info *q, *cq; |
| |
| cq = &adapter->mcc_obj.cq; |
| if (be_queue_alloc(adapter, cq, MCC_CQ_LEN, |
| sizeof(struct be_mcc_compl))) |
| goto err; |
| |
| /* Use the default EQ for MCC completions */ |
| if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0)) |
| goto mcc_cq_free; |
| |
| q = &adapter->mcc_obj.q; |
| if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb))) |
| goto mcc_cq_destroy; |
| |
| if (be_cmd_mccq_create(adapter, q, cq)) |
| goto mcc_q_free; |
| |
| return 0; |
| |
| mcc_q_free: |
| be_queue_free(adapter, q); |
| mcc_cq_destroy: |
| be_cmd_q_destroy(adapter, cq, QTYPE_CQ); |
| mcc_cq_free: |
| be_queue_free(adapter, cq); |
| err: |
| return -1; |
| } |
| |
| static void be_tx_queues_destroy(struct be_adapter *adapter) |
| { |
| struct be_queue_info *q; |
| struct be_tx_obj *txo; |
| u8 i; |
| |
| for_all_tx_queues(adapter, txo, i) { |
| q = &txo->q; |
| if (q->created) |
| be_cmd_q_destroy(adapter, q, QTYPE_TXQ); |
| be_queue_free(adapter, q); |
| |
| q = &txo->cq; |
| if (q->created) |
| be_cmd_q_destroy(adapter, q, QTYPE_CQ); |
| be_queue_free(adapter, q); |
| } |
| } |
| |
| static int be_tx_qs_create(struct be_adapter *adapter) |
| { |
| struct be_queue_info *cq; |
| struct be_tx_obj *txo; |
| struct be_eq_obj *eqo; |
| int status, i; |
| |
| adapter->num_tx_qs = min(adapter->num_evt_qs, be_max_txqs(adapter)); |
| |
| for_all_tx_queues(adapter, txo, i) { |
| cq = &txo->cq; |
| status = be_queue_alloc(adapter, cq, TX_CQ_LEN, |
| sizeof(struct be_eth_tx_compl)); |
| if (status) |
| return status; |
| |
| u64_stats_init(&txo->stats.sync); |
| u64_stats_init(&txo->stats.sync_compl); |
| |
| /* If num_evt_qs is less than num_tx_qs, then more than |
| * one txq share an eq |
| */ |
| eqo = &adapter->eq_obj[i % adapter->num_evt_qs]; |
| status = be_cmd_cq_create(adapter, cq, &eqo->q, false, 3); |
| if (status) |
| return status; |
| |
| status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN, |
| sizeof(struct be_eth_wrb)); |
| if (status) |
| return status; |
| |
| status = be_cmd_txq_create(adapter, txo); |
| if (status) |
| return status; |
| |
| netif_set_xps_queue(adapter->netdev, eqo->affinity_mask, |
| eqo->idx); |
| } |
| |
| dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n", |
| adapter->num_tx_qs); |
| return 0; |
| } |
| |
| static void be_rx_cqs_destroy(struct be_adapter *adapter) |
| { |
| struct be_queue_info *q; |
| struct be_rx_obj *rxo; |
| int i; |
| |
| for_all_rx_queues(adapter, rxo, i) { |
| q = &rxo->cq; |
| if (q->created) |
| be_cmd_q_destroy(adapter, q, QTYPE_CQ); |
| be_queue_free(adapter, q); |
| } |
| } |
| |
| static int be_rx_cqs_create(struct be_adapter *adapter) |
| { |
| struct be_queue_info *eq, *cq; |
| struct be_rx_obj *rxo; |
| int rc, i; |
| |
| /* We can create as many RSS rings as there are EQs. */ |
| adapter->num_rss_qs = adapter->num_evt_qs; |
| |
| /* We'll use RSS only if atleast 2 RSS rings are supported. */ |
| if (adapter->num_rss_qs <= 1) |
| adapter->num_rss_qs = 0; |
| |
| adapter->num_rx_qs = adapter->num_rss_qs + adapter->need_def_rxq; |
| |
| /* When the interface is not capable of RSS rings (and there is no |
| * need to create a default RXQ) we'll still need one RXQ |
| */ |
| if (adapter->num_rx_qs == 0) |
| adapter->num_rx_qs = 1; |
| |
| adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE; |
| for_all_rx_queues(adapter, rxo, i) { |
| rxo->adapter = adapter; |
| cq = &rxo->cq; |
| rc = be_queue_alloc(adapter, cq, RX_CQ_LEN, |
| sizeof(struct be_eth_rx_compl)); |
| if (rc) |
| return rc; |
| |
| u64_stats_init(&rxo->stats.sync); |
| eq = &adapter->eq_obj[i % adapter->num_evt_qs].q; |
| rc = be_cmd_cq_create(adapter, cq, eq, false, 3); |
| if (rc) |
| return rc; |
| } |
| |
| dev_info(&adapter->pdev->dev, |
| "created %d RX queue(s)\n", adapter->num_rx_qs); |
| return 0; |
| } |
| |
| static irqreturn_t be_intx(int irq, void *dev) |
| { |
| struct be_eq_obj *eqo = dev; |
| struct be_adapter *adapter = eqo->adapter; |
| int num_evts = 0; |
| |
| /* IRQ is not expected when NAPI is scheduled as the EQ |
| * will not be armed. |
| * But, this can happen on Lancer INTx where it takes |
| * a while to de-assert INTx or in BE2 where occasionaly |
| * an interrupt may be raised even when EQ is unarmed. |
| * If NAPI is already scheduled, then counting & notifying |
| * events will orphan them. |
| */ |
| if (napi_schedule_prep(&eqo->napi)) { |
| num_evts = events_get(eqo); |
| __napi_schedule(&eqo->napi); |
| if (num_evts) |
| eqo->spurious_intr = 0; |
| } |
| be_eq_notify(adapter, eqo->q.id, false, true, num_evts, 0); |
| |
| /* Return IRQ_HANDLED only for the the first spurious intr |
| * after a valid intr to stop the kernel from branding |
| * this irq as a bad one! |
| */ |
| if (num_evts || eqo->spurious_intr++ == 0) |
| return IRQ_HANDLED; |
| else |
| return IRQ_NONE; |
| } |
| |
| static irqreturn_t be_msix(int irq, void *dev) |
| { |
| struct be_eq_obj *eqo = dev; |
| |
| be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0, 0); |
| napi_schedule(&eqo->napi); |
| return IRQ_HANDLED; |
| } |
| |
| static inline bool do_gro(struct be_rx_compl_info *rxcp) |
| { |
| return (rxcp->tcpf && !rxcp->err && rxcp->l4_csum) ? true : false; |
| } |
| |
| static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi, |
| int budget, int polling) |
| { |
| struct be_adapter *adapter = rxo->adapter; |
| struct be_queue_info *rx_cq = &rxo->cq; |
| struct be_rx_compl_info *rxcp; |
| u32 work_done; |
| u32 frags_consumed = 0; |
| |
| for (work_done = 0; work_done < budget; work_done++) { |
| rxcp = be_rx_compl_get(rxo); |
| if (!rxcp) |
| break; |
| |
| /* Is it a flush compl that has no data */ |
| if (unlikely(rxcp->num_rcvd == 0)) |
| goto loop_continue; |
| |
| /* Discard compl with partial DMA Lancer B0 */ |
| if (unlikely(!rxcp->pkt_size)) { |
| be_rx_compl_discard(rxo, rxcp); |
| goto loop_continue; |
| } |
| |
| /* On BE drop pkts that arrive due to imperfect filtering in |
| * promiscuous mode on some skews |
| */ |
| if (unlikely(rxcp->port != adapter->port_num && |
| !lancer_chip(adapter))) { |
| be_rx_compl_discard(rxo, rxcp); |
| goto loop_continue; |
| } |
| |
| /* Don't do gro when we're busy_polling */ |
| if (do_gro(rxcp) && polling != BUSY_POLLING) |
| be_rx_compl_process_gro(rxo, napi, rxcp); |
| else |
| be_rx_compl_process(rxo, napi, rxcp); |
| |
| loop_continue: |
| frags_consumed += rxcp->num_rcvd; |
| be_rx_stats_update(rxo, rxcp); |
| } |
| |
| if (work_done) { |
| be_cq_notify(adapter, rx_cq->id, true, work_done); |
| |
| /* When an rx-obj gets into post_starved state, just |
| * let be_worker do the posting. |
| */ |
| if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM && |
| !rxo->rx_post_starved) |
| be_post_rx_frags(rxo, GFP_ATOMIC, |
| max_t(u32, MAX_RX_POST, |
| frags_consumed)); |
| } |
| |
| return work_done; |
| } |
| |
| static inline void be_update_tx_err(struct be_tx_obj *txo, u8 status) |
| { |
| switch (status) { |
| case BE_TX_COMP_HDR_PARSE_ERR: |
| tx_stats(txo)->tx_hdr_parse_err++; |
| break; |
| case BE_TX_COMP_NDMA_ERR: |
| tx_stats(txo)->tx_dma_err++; |
| break; |
| case BE_TX_COMP_ACL_ERR: |
| tx_stats(txo)->tx_spoof_check_err++; |
| break; |
| } |
| } |
| |
| static inline void lancer_update_tx_err(struct be_tx_obj *txo, u8 status) |
| { |
| switch (status) { |
| case LANCER_TX_COMP_LSO_ERR: |
| tx_stats(txo)->tx_tso_err++; |
| break; |
| case LANCER_TX_COMP_HSW_DROP_MAC_ERR: |
| case LANCER_TX_COMP_HSW_DROP_VLAN_ERR: |
| tx_stats(txo)->tx_spoof_check_err++; |
| break; |
| case LANCER_TX_COMP_QINQ_ERR: |
| tx_stats(txo)->tx_qinq_err++; |
| break; |
| case LANCER_TX_COMP_PARITY_ERR: |
| tx_stats(txo)->tx_internal_parity_err++; |
| break; |
| case LANCER_TX_COMP_DMA_ERR: |
| tx_stats(txo)->tx_dma_err++; |
| break; |
| } |
| } |
| |
| static void be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo, |
| int idx) |
| { |
| int num_wrbs = 0, work_done = 0; |
| struct be_tx_compl_info *txcp; |
| |
| while ((txcp = be_tx_compl_get(txo))) { |
| num_wrbs += be_tx_compl_process(adapter, txo, txcp->end_index); |
| work_done++; |
| |
| if (txcp->status) { |
| if (lancer_chip(adapter)) |
| lancer_update_tx_err(txo, txcp->status); |
| else |
| be_update_tx_err(txo, txcp->status); |
| } |
| } |
| |
| if (work_done) { |
| be_cq_notify(adapter, txo->cq.id, true, work_done); |
| atomic_sub(num_wrbs, &txo->q.used); |
| |
| /* As Tx wrbs have been freed up, wake up netdev queue |
| * if it was stopped due to lack of tx wrbs. */ |
| if (__netif_subqueue_stopped(adapter->netdev, idx) && |
| be_can_txq_wake(txo)) { |
| netif_wake_subqueue(adapter->netdev, idx); |
| } |
| |
| u64_stats_update_begin(&tx_stats(txo)->sync_compl); |
| tx_stats(txo)->tx_compl += work_done; |
| u64_stats_update_end(&tx_stats(txo)->sync_compl); |
| } |
| } |
| |
| #ifdef CONFIG_NET_RX_BUSY_POLL |
| static inline bool be_lock_napi(struct be_eq_obj *eqo) |
| { |
| bool status = true; |
| |
| spin_lock(&eqo->lock); /* BH is already disabled */ |
| if (eqo->state & BE_EQ_LOCKED) { |
| WARN_ON(eqo->state & BE_EQ_NAPI); |
| eqo->state |= BE_EQ_NAPI_YIELD; |
| status = false; |
| } else { |
| eqo->state = BE_EQ_NAPI; |
| } |
| spin_unlock(&eqo->lock); |
| return status; |
| } |
| |
| static inline void be_unlock_napi(struct be_eq_obj *eqo) |
| { |
| spin_lock(&eqo->lock); /* BH is already disabled */ |
| |
| WARN_ON(eqo->state & (BE_EQ_POLL | BE_EQ_NAPI_YIELD)); |
| eqo->state = BE_EQ_IDLE; |
| |
| spin_unlock(&eqo->lock); |
| } |
| |
| static inline bool be_lock_busy_poll(struct be_eq_obj *eqo) |
| { |
| bool status = true; |
| |
| spin_lock_bh(&eqo->lock); |
| if (eqo->state & BE_EQ_LOCKED) { |
| eqo->state |= BE_EQ_POLL_YIELD; |
| status = false; |
| } else { |
| eqo->state |= BE_EQ_POLL; |
| } |
| spin_unlock_bh(&eqo->lock); |
| return status; |
| } |
| |
| static inline void be_unlock_busy_poll(struct be_eq_obj *eqo) |
| { |
| spin_lock_bh(&eqo->lock); |
| |
| WARN_ON(eqo->state & (BE_EQ_NAPI)); |
| eqo->state = BE_EQ_IDLE; |
| |
| spin_unlock_bh(&eqo->lock); |
| } |
| |
| static inline void be_enable_busy_poll(struct be_eq_obj *eqo) |
| { |
| spin_lock_init(&eqo->lock); |
| eqo->state = BE_EQ_IDLE; |
| } |
| |
| static inline void be_disable_busy_poll(struct be_eq_obj *eqo) |
| { |
| local_bh_disable(); |
| |
| /* It's enough to just acquire napi lock on the eqo to stop |
| * be_busy_poll() from processing any queueus. |
| */ |
| while (!be_lock_napi(eqo)) |
| mdelay(1); |
| |
| local_bh_enable(); |
| } |
| |
| #else /* CONFIG_NET_RX_BUSY_POLL */ |
| |
| static inline bool be_lock_napi(struct be_eq_obj *eqo) |
| { |
| return true; |
| } |
| |
| static inline void be_unlock_napi(struct be_eq_obj *eqo) |
| { |
| } |
| |
| static inline bool be_lock_busy_poll(struct be_eq_obj *eqo) |
| { |
| return false; |
| } |
| |
| static inline void be_unlock_busy_poll(struct be_eq_obj *eqo) |
| { |
| } |
| |
| static inline void be_enable_busy_poll(struct be_eq_obj *eqo) |
| { |
| } |
| |
| static inline void be_disable_busy_poll(struct be_eq_obj *eqo) |
| { |
| } |
| #endif /* CONFIG_NET_RX_BUSY_POLL */ |
| |
| int be_poll(struct napi_struct *napi, int budget) |
| { |
| struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi); |
| struct be_adapter *adapter = eqo->adapter; |
| int max_work = 0, work, i, num_evts; |
| struct be_rx_obj *rxo; |
| struct be_tx_obj *txo; |
| u32 mult_enc = 0; |
| |
| num_evts = events_get(eqo); |
| |
| for_all_tx_queues_on_eq(adapter, eqo, txo, i) |
| be_process_tx(adapter, txo, i); |
| |
| if (be_lock_napi(eqo)) { |
| /* This loop will iterate twice for EQ0 in which |
| * completions of the last RXQ (default one) are also processed |
| * For other EQs the loop iterates only once |
| */ |
| for_all_rx_queues_on_eq(adapter, eqo, rxo, i) { |
| work = be_process_rx(rxo, napi, budget, NAPI_POLLING); |
| max_work = max(work, max_work); |
| } |
| be_unlock_napi(eqo); |
| } else { |
| max_work = budget; |
| } |
| |
| if (is_mcc_eqo(eqo)) |
| be_process_mcc(adapter); |
| |
| if (max_work < budget) { |
| napi_complete(napi); |
| |
| /* Skyhawk EQ_DB has a provision to set the rearm to interrupt |
| * delay via a delay multiplier encoding value |
| */ |
| if (skyhawk_chip(adapter)) |
| mult_enc = be_get_eq_delay_mult_enc(eqo); |
| |
| be_eq_notify(adapter, eqo->q.id, true, false, num_evts, |
| mult_enc); |
| } else { |
| /* As we'll continue in polling mode, count and clear events */ |
| be_eq_notify(adapter, eqo->q.id, false, false, num_evts, 0); |
| } |
| return max_work; |
| } |
| |
| #ifdef CONFIG_NET_RX_BUSY_POLL |
| static int be_busy_poll(struct napi_struct *napi) |
| { |
| struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi); |
| struct be_adapter *adapter = eqo->adapter; |
| struct be_rx_obj *rxo; |
| int i, work = 0; |
| |
| if (!be_lock_busy_poll(eqo)) |
| return LL_FLUSH_BUSY; |
| |
| for_all_rx_queues_on_eq(adapter, eqo, rxo, i) { |
| work = be_process_rx(rxo, napi, 4, BUSY_POLLING); |
| if (work) |
| break; |
| } |
| |
| be_unlock_busy_poll(eqo); |
| return work; |
| } |
| #endif |
| |
| void be_detect_error(struct be_adapter *adapter) |
| { |
| u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0; |
| u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0; |
| u32 i; |
| struct device *dev = &adapter->pdev->dev; |
| |
| if (be_check_error(adapter, BE_ERROR_HW)) |
| return; |
| |
| if (lancer_chip(adapter)) { |
| sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET); |
| if (sliport_status & SLIPORT_STATUS_ERR_MASK) { |
| be_set_error(adapter, BE_ERROR_UE); |
| sliport_err1 = ioread32(adapter->db + |
| SLIPORT_ERROR1_OFFSET); |
| sliport_err2 = ioread32(adapter->db + |
| SLIPORT_ERROR2_OFFSET); |
| /* Do not log error messages if its a FW reset */ |
| if (sliport_err1 == SLIPORT_ERROR_FW_RESET1 && |
| sliport_err2 == SLIPORT_ERROR_FW_RESET2) { |
| dev_info(dev, "Firmware update in progress\n"); |
| } else { |
| dev_err(dev, "Error detected in the card\n"); |
| dev_err(dev, "ERR: sliport status 0x%x\n", |
| sliport_status); |
| dev_err(dev, "ERR: sliport error1 0x%x\n", |
| sliport_err1); |
| dev_err(dev, "ERR: sliport error2 0x%x\n", |
| sliport_err2); |
| } |
| } |
| } else { |
| ue_lo = ioread32(adapter->pcicfg + PCICFG_UE_STATUS_LOW); |
| ue_hi = ioread32(adapter->pcicfg + PCICFG_UE_STATUS_HIGH); |
| ue_lo_mask = ioread32(adapter->pcicfg + |
| PCICFG_UE_STATUS_LOW_MASK); |
| ue_hi_mask = ioread32(adapter->pcicfg + |
| PCICFG_UE_STATUS_HI_MASK); |
| |
| ue_lo = (ue_lo & ~ue_lo_mask); |
| ue_hi = (ue_hi & ~ue_hi_mask); |
| |
| /* On certain platforms BE hardware can indicate spurious UEs. |
| * Allow HW to stop working completely in case of a real UE. |
| * Hence not setting the hw_error for UE detection. |
| */ |
| |
| if (ue_lo || ue_hi) { |
| dev_err(dev, |
| "Unrecoverable Error detected in the adapter"); |
| dev_err(dev, "Please reboot server to recover"); |
| if (skyhawk_chip(adapter)) |
| be_set_error(adapter, BE_ERROR_UE); |
| |
| for (i = 0; ue_lo; ue_lo >>= 1, i++) { |
| if (ue_lo & 1) |
| dev_err(dev, "UE: %s bit set\n", |
| ue_status_low_desc[i]); |
| } |
| for (i = 0; ue_hi; ue_hi >>= 1, i++) { |
| if (ue_hi & 1) |
| dev_err(dev, "UE: %s bit set\n", |
| ue_status_hi_desc[i]); |
| } |
| } |
| } |
| } |
| |
| static void be_msix_disable(struct be_adapter *adapter) |
| { |
| if (msix_enabled(adapter)) { |
| pci_disable_msix(adapter->pdev); |
| adapter->num_msix_vec = 0; |
| adapter->num_msix_roce_vec = 0; |
| } |
| } |
| |
| static int be_msix_enable(struct be_adapter *adapter) |
| { |
| int i, num_vec; |
| struct device *dev = &adapter->pdev->dev; |
| |
| /* If RoCE is supported, program the max number of NIC vectors that |
| * may be configured via set-channels, along with vectors needed for |
| * RoCe. Else, just program the number we'll use initially. |
| */ |
| if (be_roce_supported(adapter)) |
| num_vec = min_t(int, 2 * be_max_eqs(adapter), |
| 2 * num_online_cpus()); |
| else |
| num_vec = adapter->cfg_num_qs; |
| |
| for (i = 0; i < num_vec; i++) |
| adapter->msix_entries[i].entry = i; |
| |
| num_vec = pci_enable_msix_range(adapter->pdev, adapter->msix_entries, |
| MIN_MSIX_VECTORS, num_vec); |
| if (num_vec < 0) |
| goto fail; |
| |
| if (be_roce_supported(adapter) && num_vec > MIN_MSIX_VECTORS) { |
| adapter->num_msix_roce_vec = num_vec / 2; |
| dev_info(dev, "enabled %d MSI-x vector(s) for RoCE\n", |
| adapter->num_msix_roce_vec); |
| } |
| |
| adapter->num_msix_vec = num_vec - adapter->num_msix_roce_vec; |
| |
| dev_info(dev, "enabled %d MSI-x vector(s) for NIC\n", |
| adapter->num_msix_vec); |
| return 0; |
| |
| fail: |
| dev_warn(dev, "MSIx enable failed\n"); |
| |
| /* INTx is not supported in VFs, so fail probe if enable_msix fails */ |
| if (be_virtfn(adapter)) |
| return num_vec; |
| return 0; |
| } |
| |
| static inline int be_msix_vec_get(struct be_adapter *adapter, |
| struct be_eq_obj *eqo) |
| { |
| return adapter->msix_entries[eqo->msix_idx].vector; |
| } |
| |
| static int be_msix_register(struct be_adapter *adapter) |
| { |
| struct net_device *netdev = adapter->netdev; |
| struct be_eq_obj *eqo; |
| int status, i, vec; |
| |
| for_all_evt_queues(adapter, eqo, i) { |
| sprintf(eqo->desc, "%s-q%d", netdev->name, i); |
| vec = be_msix_vec_get(adapter, eqo); |
| status = request_irq(vec, be_msix, 0, eqo->desc, eqo); |
| if (status) |
| goto err_msix; |
| |
| irq_set_affinity_hint(vec, eqo->affinity_mask); |
| } |
| |
| return 0; |
| err_msix: |
| for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--) |
| free_irq(be_msix_vec_get(adapter, eqo), eqo); |
| dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n", |
| status); |
| be_msix_disable(adapter); |
| return status; |
| } |
| |
| static int be_irq_register(struct be_adapter *adapter) |
| { |
| struct net_device *netdev = adapter->netdev; |
| int status; |
| |
| if (msix_enabled(adapter)) { |
| status = be_msix_register(adapter); |
| if (status == 0) |
| goto done; |
| /* INTx is not supported for VF */ |
| if (be_virtfn(adapter)) |
| return status; |
| } |
| |
| /* INTx: only the first EQ is used */ |
| netdev->irq = adapter->pdev->irq; |
| status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name, |
| &adapter->eq_obj[0]); |
| if (status) { |
| dev_err(&adapter->pdev->dev, |
| "INTx request IRQ failed - err %d\n", status); |
| return status; |
| } |
| done: |
| adapter->isr_registered = true; |
| return 0; |
| } |
| |
| static void be_irq_unregister(struct be_adapter *adapter) |
| { |
| struct net_device *netdev = adapter->netdev; |
| struct be_eq_obj *eqo; |
| int i, vec; |
| |
| if (!adapter->isr_registered) |
| return; |
| |
| /* INTx */ |
| if (!msix_enabled(adapter)) { |
| free_irq(netdev->irq, &adapter->eq_obj[0]); |
| goto done; |
| } |
| |
| /* MSIx */ |
| for_all_evt_queues(adapter, eqo, i) { |
| vec = be_msix_vec_get(adapter, eqo); |
| irq_set_affinity_hint(vec, NULL); |
| free_irq(vec, eqo); |
| } |
| |
| done: |
| adapter->isr_registered = false; |
| } |
| |
| static void be_rx_qs_destroy(struct be_adapter *adapter) |
| { |
| struct be_queue_info *q; |
| struct be_rx_obj *rxo; |
| int i; |
| |
| for_all_rx_queues(adapter, rxo, i) { |
| q = &rxo->q; |
| if (q->created) { |
| be_cmd_rxq_destroy(adapter, q); |
| be_rx_cq_clean(rxo); |
| } |
| be_queue_free(adapter, q); |
| } |
| } |
| |
| static int be_close(struct net_device *netdev) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct be_eq_obj *eqo; |
| int i; |
| |
| /* This protection is needed as be_close() may be called even when the |
| * adapter is in cleared state (after eeh perm failure) |
| */ |
| if (!(adapter->flags & BE_FLAGS_SETUP_DONE)) |
| return 0; |
| |
| be_roce_dev_close(adapter); |
| |
| if (adapter->flags & BE_FLAGS_NAPI_ENABLED) { |
| for_all_evt_queues(adapter, eqo, i) { |
| napi_disable(&eqo->napi); |
| be_disable_busy_poll(eqo); |
| } |
| adapter->flags &= ~BE_FLAGS_NAPI_ENABLED; |
| } |
| |
| be_async_mcc_disable(adapter); |
| |
| /* Wait for all pending tx completions to arrive so that |
| * all tx skbs are freed. |
| */ |
| netif_tx_disable(netdev); |
| be_tx_compl_clean(adapter); |
| |
| be_rx_qs_destroy(adapter); |
| be_clear_uc_list(adapter); |
| |
| for_all_evt_queues(adapter, eqo, i) { |
| if (msix_enabled(adapter)) |
| synchronize_irq(be_msix_vec_get(adapter, eqo)); |
| else |
| synchronize_irq(netdev->irq); |
| be_eq_clean(eqo); |
| } |
| |
| be_irq_unregister(adapter); |
| |
| return 0; |
| } |
| |
| static int be_rx_qs_create(struct be_adapter *adapter) |
| { |
| struct rss_info *rss = &adapter->rss_info; |
| u8 rss_key[RSS_HASH_KEY_LEN]; |
| struct be_rx_obj *rxo; |
| int rc, i, j; |
| |
| for_all_rx_queues(adapter, rxo, i) { |
| rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN, |
| sizeof(struct be_eth_rx_d)); |
| if (rc) |
| return rc; |
| } |
| |
| if (adapter->need_def_rxq || !adapter->num_rss_qs) { |
| rxo = default_rxo(adapter); |
| rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, |
| rx_frag_size, adapter->if_handle, |
| false, &rxo->rss_id); |
| if (rc) |
| return rc; |
| } |
| |
| for_all_rss_queues(adapter, rxo, i) { |
| rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, |
| rx_frag_size, adapter->if_handle, |
| true, &rxo->rss_id); |
| if (rc) |
| return rc; |
| } |
| |
| if (be_multi_rxq(adapter)) { |
| for (j = 0; j < RSS_INDIR_TABLE_LEN; j += adapter->num_rss_qs) { |
| for_all_rss_queues(adapter, rxo, i) { |
| if ((j + i) >= RSS_INDIR_TABLE_LEN) |
| break; |
| rss->rsstable[j + i] = rxo->rss_id; |
| rss->rss_queue[j + i] = i; |
| } |
| } |
| rss->rss_flags = RSS_ENABLE_TCP_IPV4 | RSS_ENABLE_IPV4 | |
| RSS_ENABLE_TCP_IPV6 | RSS_ENABLE_IPV6; |
| |
| if (!BEx_chip(adapter)) |
| rss->rss_flags |= RSS_ENABLE_UDP_IPV4 | |
| RSS_ENABLE_UDP_IPV6; |
| } else { |
| /* Disable RSS, if only default RX Q is created */ |
| rss->rss_flags = RSS_ENABLE_NONE; |
| } |
| |
| netdev_rss_key_fill(rss_key, RSS_HASH_KEY_LEN); |
| rc = be_cmd_rss_config(adapter, rss->rsstable, rss->rss_flags, |
| 128, rss_key); |
| if (rc) { |
| rss->rss_flags = RSS_ENABLE_NONE; |
| return rc; |
| } |
| |
| memcpy(rss->rss_hkey, rss_key, RSS_HASH_KEY_LEN); |
| |
| /* Post 1 less than RXQ-len to avoid head being equal to tail, |
| * which is a queue empty condition |
| */ |
| for_all_rx_queues(adapter, rxo, i) |
| be_post_rx_frags(rxo, GFP_KERNEL, RX_Q_LEN - 1); |
| |
| return 0; |
| } |
| |
| static int be_open(struct net_device *netdev) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct be_eq_obj *eqo; |
| struct be_rx_obj *rxo; |
| struct be_tx_obj *txo; |
| u8 link_status; |
| int status, i; |
| |
| status = be_rx_qs_create(adapter); |
| if (status) |
| goto err; |
| |
| status = be_irq_register(adapter); |
| if (status) |
| goto err; |
| |
| for_all_rx_queues(adapter, rxo, i) |
| be_cq_notify(adapter, rxo->cq.id, true, 0); |
| |
| for_all_tx_queues(adapter, txo, i) |
| be_cq_notify(adapter, txo->cq.id, true, 0); |
| |
| be_async_mcc_enable(adapter); |
| |
| for_all_evt_queues(adapter, eqo, i) { |
| napi_enable(&eqo->napi); |
| be_enable_busy_poll(eqo); |
| be_eq_notify(adapter, eqo->q.id, true, true, 0, 0); |
| } |
| adapter->flags |= BE_FLAGS_NAPI_ENABLED; |
| |
| status = be_cmd_link_status_query(adapter, NULL, &link_status, 0); |
| if (!status) |
| be_link_status_update(adapter, link_status); |
| |
| netif_tx_start_all_queues(netdev); |
| be_roce_dev_open(adapter); |
| |
| #ifdef CONFIG_BE2NET_VXLAN |
| if (skyhawk_chip(adapter)) |
| vxlan_get_rx_port(netdev); |
| #endif |
| |
| return 0; |
| err: |
| be_close(adapter->netdev); |
| return -EIO; |
| } |
| |
| static int be_setup_wol(struct be_adapter *adapter, bool enable) |
| { |
| struct be_dma_mem cmd; |
| int status = 0; |
| u8 mac[ETH_ALEN]; |
| |
| eth_zero_addr(mac); |
| |
| cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config); |
| cmd.va = dma_zalloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma, |
| GFP_KERNEL); |
| if (!cmd.va) |
| return -ENOMEM; |
| |
| if (enable) { |
| status = pci_write_config_dword(adapter->pdev, |
| PCICFG_PM_CONTROL_OFFSET, |
| PCICFG_PM_CONTROL_MASK); |
| if (status) { |
| dev_err(&adapter->pdev->dev, |
| "Could not enable Wake-on-lan\n"); |
| dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, |
| cmd.dma); |
| return status; |
| } |
| status = be_cmd_enable_magic_wol(adapter, |
| adapter->netdev->dev_addr, |
| &cmd); |
| pci_enable_wake(adapter->pdev, PCI_D3hot, 1); |
| pci_enable_wake(adapter->pdev, PCI_D3cold, 1); |
| } else { |
| status = be_cmd_enable_magic_wol(adapter, mac, &cmd); |
| pci_enable_wake(adapter->pdev, PCI_D3hot, 0); |
| pci_enable_wake(adapter->pdev, PCI_D3cold, 0); |
| } |
| |
| dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma); |
| return status; |
| } |
| |
| static void be_vf_eth_addr_generate(struct be_adapter *adapter, u8 *mac) |
| { |
| u32 addr; |
| |
| addr = jhash(adapter->netdev->dev_addr, ETH_ALEN, 0); |
| |
| mac[5] = (u8)(addr & 0xFF); |
| mac[4] = (u8)((addr >> 8) & 0xFF); |
| mac[3] = (u8)((addr >> 16) & 0xFF); |
| /* Use the OUI from the current MAC address */ |
| memcpy(mac, adapter->netdev->dev_addr, 3); |
| } |
| |
| /* |
| * Generate a seed MAC address from the PF MAC Address using jhash. |
| * MAC Address for VFs are assigned incrementally starting from the seed. |
| * These addresses are programmed in the ASIC by the PF and the VF driver |
| * queries for the MAC address during its probe. |
| */ |
| static int be_vf_eth_addr_config(struct be_adapter *adapter) |
| { |
| u32 vf; |
| int status = 0; |
| u8 mac[ETH_ALEN]; |
| struct be_vf_cfg *vf_cfg; |
| |
| be_vf_eth_addr_generate(adapter, mac); |
| |
| for_all_vfs(adapter, vf_cfg, vf) { |
| if (BEx_chip(adapter)) |
| status = be_cmd_pmac_add(adapter, mac, |
| vf_cfg->if_handle, |
| &vf_cfg->pmac_id, vf + 1); |
| else |
| status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle, |
| vf + 1); |
| |
| if (status) |
| dev_err(&adapter->pdev->dev, |
| "Mac address assignment failed for VF %d\n", |
| vf); |
| else |
| memcpy(vf_cfg->mac_addr, mac, ETH_ALEN); |
| |
| mac[5] += 1; |
| } |
| return status; |
| } |
| |
| static int be_vfs_mac_query(struct be_adapter *adapter) |
| { |
| int status, vf; |
| u8 mac[ETH_ALEN]; |
| struct be_vf_cfg *vf_cfg; |
| |
| for_all_vfs(adapter, vf_cfg, vf) { |
| status = be_cmd_get_active_mac(adapter, vf_cfg->pmac_id, |
| mac, vf_cfg->if_handle, |
| false, vf+1); |
| if (status) |
| return status; |
| memcpy(vf_cfg->mac_addr, mac, ETH_ALEN); |
| } |
| return 0; |
| } |
| |
| static void be_vf_clear(struct be_adapter *adapter) |
| { |
| struct be_vf_cfg *vf_cfg; |
| u32 vf; |
| |
| if (pci_vfs_assigned(adapter->pdev)) { |
| dev_warn(&adapter->pdev->dev, |
| "VFs are assigned to VMs: not disabling VFs\n"); |
| goto done; |
| } |
| |
| pci_disable_sriov(adapter->pdev); |
| |
| for_all_vfs(adapter, vf_cfg, vf) { |
| if (BEx_chip(adapter)) |
| be_cmd_pmac_del(adapter, vf_cfg->if_handle, |
| vf_cfg->pmac_id, vf + 1); |
| else |
| be_cmd_set_mac(adapter, NULL, vf_cfg->if_handle, |
| vf + 1); |
| |
| be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1); |
| } |
| done: |
| kfree(adapter->vf_cfg); |
| adapter->num_vfs = 0; |
| adapter->flags &= ~BE_FLAGS_SRIOV_ENABLED; |
| } |
| |
| static void be_clear_queues(struct be_adapter *adapter) |
| { |
| be_mcc_queues_destroy(adapter); |
| be_rx_cqs_destroy(adapter); |
| be_tx_queues_destroy(adapter); |
| be_evt_queues_destroy(adapter); |
| } |
| |
| static void be_cancel_worker(struct be_adapter *adapter) |
| { |
| if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) { |
| cancel_delayed_work_sync(&adapter->work); |
| adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED; |
| } |
| } |
| |
| static void be_cancel_err_detection(struct be_adapter *adapter) |
| { |
| if (adapter->flags & BE_FLAGS_ERR_DETECTION_SCHEDULED) { |
| cancel_delayed_work_sync(&adapter->be_err_detection_work); |
| adapter->flags &= ~BE_FLAGS_ERR_DETECTION_SCHEDULED; |
| } |
| } |
| |
| static void be_mac_clear(struct be_adapter *adapter) |
| { |
| if (adapter->pmac_id) { |
| be_cmd_pmac_del(adapter, adapter->if_handle, |
| adapter->pmac_id[0], 0); |
| kfree(adapter->pmac_id); |
| adapter->pmac_id = NULL; |
| } |
| } |
| |
| #ifdef CONFIG_BE2NET_VXLAN |
| static void be_disable_vxlan_offloads(struct be_adapter *adapter) |
| { |
| struct net_device *netdev = adapter->netdev; |
| |
| if (adapter->flags & BE_FLAGS_VXLAN_OFFLOADS) |
| be_cmd_manage_iface(adapter, adapter->if_handle, |
| OP_CONVERT_TUNNEL_TO_NORMAL); |
| |
| if (adapter->vxlan_port) |
| be_cmd_set_vxlan_port(adapter, 0); |
| |
| adapter->flags &= ~BE_FLAGS_VXLAN_OFFLOADS; |
| adapter->vxlan_port = 0; |
| |
| netdev->hw_enc_features = 0; |
| netdev->hw_features &= ~(NETIF_F_GSO_UDP_TUNNEL); |
| netdev->features &= ~(NETIF_F_GSO_UDP_TUNNEL); |
| } |
| #endif |
| |
| static u16 be_calculate_vf_qs(struct be_adapter *adapter, u16 num_vfs) |
| { |
| struct be_resources res = adapter->pool_res; |
| u16 num_vf_qs = 1; |
| |
| /* Distribute the queue resources equally among the PF and it's VFs |
| * Do not distribute queue resources in multi-channel configuration. |
| */ |
| if (num_vfs && !be_is_mc(adapter)) { |
| /* If number of VFs requested is 8 less than max supported, |
| * assign 8 queue pairs to the PF and divide the remaining |
| * resources evenly among the VFs |
| */ |
| if (num_vfs < (be_max_vfs(adapter) - 8)) |
| num_vf_qs = (res.max_rss_qs - 8) / num_vfs; |
| else |
| num_vf_qs = res.max_rss_qs / num_vfs; |
| |
| /* Skyhawk-R chip supports only MAX_RSS_IFACES RSS capable |
| * interfaces per port. Provide RSS on VFs, only if number |
| * of VFs requested is less than MAX_RSS_IFACES limit. |
| */ |
| if (num_vfs >= MAX_RSS_IFACES) |
| num_vf_qs = 1; |
| } |
| return num_vf_qs; |
| } |
| |
| static int be_clear(struct be_adapter *adapter) |
| { |
| struct pci_dev *pdev = adapter->pdev; |
| u16 num_vf_qs; |
| |
| be_cancel_worker(adapter); |
| |
| if (sriov_enabled(adapter)) |
| be_vf_clear(adapter); |
| |
| /* Re-configure FW to distribute resources evenly across max-supported |
| * number of VFs, only when VFs are not already enabled. |
| */ |
| if (skyhawk_chip(adapter) && be_physfn(adapter) && |
| !pci_vfs_assigned(pdev)) { |
| num_vf_qs = be_calculate_vf_qs(adapter, |
| pci_sriov_get_totalvfs(pdev)); |
| be_cmd_set_sriov_config(adapter, adapter->pool_res, |
| pci_sriov_get_totalvfs(pdev), |
| num_vf_qs); |
| } |
| |
| #ifdef CONFIG_BE2NET_VXLAN |
| be_disable_vxlan_offloads(adapter); |
| #endif |
| /* delete the primary mac along with the uc-mac list */ |
| be_mac_clear(adapter); |
| |
| be_cmd_if_destroy(adapter, adapter->if_handle, 0); |
| |
| be_clear_queues(adapter); |
| |
| be_msix_disable(adapter); |
| adapter->flags &= ~BE_FLAGS_SETUP_DONE; |
| return 0; |
| } |
| |
| static int be_if_create(struct be_adapter *adapter, u32 *if_handle, |
| u32 cap_flags, u32 vf) |
| { |
| u32 en_flags; |
| |
| en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST | |
| BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS | |
| BE_IF_FLAGS_RSS | BE_IF_FLAGS_DEFQ_RSS; |
| |
| en_flags &= cap_flags; |
| |
| return be_cmd_if_create(adapter, cap_flags, en_flags, if_handle, vf); |
| } |
| |
| static int be_vfs_if_create(struct be_adapter *adapter) |
| { |
| struct be_resources res = {0}; |
| struct be_vf_cfg *vf_cfg; |
| u32 cap_flags, vf; |
| int status; |
| |
| /* If a FW profile exists, then cap_flags are updated */ |
| cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST | |
| BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS; |
| |
| for_all_vfs(adapter, vf_cfg, vf) { |
| if (!BE3_chip(adapter)) { |
| status = be_cmd_get_profile_config(adapter, &res, |
| RESOURCE_LIMITS, |
| vf + 1); |
| if (!status) { |
| cap_flags = res.if_cap_flags; |
| /* Prevent VFs from enabling VLAN promiscuous |
| * mode |
| */ |
| cap_flags &= ~BE_IF_FLAGS_VLAN_PROMISCUOUS; |
| } |
| } |
| |
| status = be_if_create(adapter, &vf_cfg->if_handle, |
| cap_flags, vf + 1); |
| if (status) |
| return status; |
| } |
| |
| return 0; |
| } |
| |
| static int be_vf_setup_init(struct be_adapter *adapter) |
| { |
| struct be_vf_cfg *vf_cfg; |
| int vf; |
| |
| adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg), |
| GFP_KERNEL); |
| if (!adapter->vf_cfg) |
| return -ENOMEM; |
| |
| for_all_vfs(adapter, vf_cfg, vf) { |
| vf_cfg->if_handle = -1; |
| vf_cfg->pmac_id = -1; |
| } |
| return 0; |
| } |
| |
| static int be_vf_setup(struct be_adapter *adapter) |
| { |
| struct device *dev = &adapter->pdev->dev; |
| struct be_vf_cfg *vf_cfg; |
| int status, old_vfs, vf; |
| bool spoofchk; |
| |
| old_vfs = pci_num_vf(adapter->pdev); |
| |
| status = be_vf_setup_init(adapter); |
| if (status) |
| goto err; |
| |
| if (old_vfs) { |
| for_all_vfs(adapter, vf_cfg, vf) { |
| status = be_cmd_get_if_id(adapter, vf_cfg, vf); |
| if (status) |
| goto err; |
| } |
| |
| status = be_vfs_mac_query(adapter); |
| if (status) |
| goto err; |
| } else { |
| status = be_vfs_if_create(adapter); |
| if (status) |
| goto err; |
| |
| status = be_vf_eth_addr_config(adapter); |
| if (status) |
| goto err; |
| } |
| |
| for_all_vfs(adapter, vf_cfg, vf) { |
| /* Allow VFs to programs MAC/VLAN filters */ |
| status = be_cmd_get_fn_privileges(adapter, &vf_cfg->privileges, |
| vf + 1); |
| if (!status && !(vf_cfg->privileges & BE_PRIV_FILTMGMT)) { |
| status = be_cmd_set_fn_privileges(adapter, |
| vf_cfg->privileges | |
| BE_PRIV_FILTMGMT, |
| vf + 1); |
| if (!status) { |
| vf_cfg->privileges |= BE_PRIV_FILTMGMT; |
| dev_info(dev, "VF%d has FILTMGMT privilege\n", |
| vf); |
| } |
| } |
| |
| /* Allow full available bandwidth */ |
| if (!old_vfs) |
| be_cmd_config_qos(adapter, 0, 0, vf + 1); |
| |
| status = be_cmd_get_hsw_config(adapter, NULL, vf + 1, |
| vf_cfg->if_handle, NULL, |
| &spoofchk); |
| if (!status) |
| vf_cfg->spoofchk = spoofchk; |
| |
| if (!old_vfs) { |
| be_cmd_enable_vf(adapter, vf + 1); |
| be_cmd_set_logical_link_config(adapter, |
| IFLA_VF_LINK_STATE_AUTO, |
| vf+1); |
| } |
| } |
| |
| if (!old_vfs) { |
| status = pci_enable_sriov(adapter->pdev, adapter->num_vfs); |
| if (status) { |
| dev_err(dev, "SRIOV enable failed\n"); |
| adapter->num_vfs = 0; |
| goto err; |
| } |
| } |
| |
| adapter->flags |= BE_FLAGS_SRIOV_ENABLED; |
| return 0; |
| err: |
| dev_err(dev, "VF setup failed\n"); |
| be_vf_clear(adapter); |
| return status; |
| } |
| |
| /* Converting function_mode bits on BE3 to SH mc_type enums */ |
| |
| static u8 be_convert_mc_type(u32 function_mode) |
| { |
| if (function_mode & VNIC_MODE && function_mode & QNQ_MODE) |
| return vNIC1; |
| else if (function_mode & QNQ_MODE) |
| return FLEX10; |
| else if (function_mode & VNIC_MODE) |
| return vNIC2; |
| else if (function_mode & UMC_ENABLED) |
| return UMC; |
| else |
| return MC_NONE; |
| } |
| |
| /* On BE2/BE3 FW does not suggest the supported limits */ |
| static void BEx_get_resources(struct be_adapter *adapter, |
| struct be_resources *res) |
| { |
| bool use_sriov = adapter->num_vfs ? 1 : 0; |
| |
| if (be_physfn(adapter)) |
| res->max_uc_mac = BE_UC_PMAC_COUNT; |
| else |
| res->max_uc_mac = BE_VF_UC_PMAC_COUNT; |
| |
| adapter->mc_type = be_convert_mc_type(adapter->function_mode); |
| |
| if (be_is_mc(adapter)) { |
| /* Assuming that there are 4 channels per port, |
| * when multi-channel is enabled |
| */ |
| if (be_is_qnq_mode(adapter)) |
| res->max_vlans = BE_NUM_VLANS_SUPPORTED/8; |
| else |
| /* In a non-qnq multichannel mode, the pvid |
| * takes up one vlan entry |
| */ |
| res->max_vlans = (BE_NUM_VLANS_SUPPORTED / 4) - 1; |
| } else { |
| res->max_vlans = BE_NUM_VLANS_SUPPORTED; |
| } |
| |
| res->max_mcast_mac = BE_MAX_MC; |
| |
| /* 1) For BE3 1Gb ports, FW does not support multiple TXQs |
| * 2) Create multiple TX rings on a BE3-R multi-channel interface |
| * *only* if it is RSS-capable. |
| */ |
| if (BE2_chip(adapter) || use_sriov || (adapter->port_num > 1) || |
| be_virtfn(adapter) || |
| (be_is_mc(adapter) && |
| !(adapter->function_caps & BE_FUNCTION_CAPS_RSS))) { |
| res->max_tx_qs = 1; |
| } else if (adapter->function_caps & BE_FUNCTION_CAPS_SUPER_NIC) { |
| struct be_resources super_nic_res = {0}; |
| |
| /* On a SuperNIC profile, the driver needs to use the |
| * GET_PROFILE_CONFIG cmd to query the per-function TXQ limits |
| */ |
| be_cmd_get_profile_config(adapter, &super_nic_res, |
| RESOURCE_LIMITS, 0); |
| /* Some old versions of BE3 FW don't report max_tx_qs value */ |
| res->max_tx_qs = super_nic_res.max_tx_qs ? : BE3_MAX_TX_QS; |
| } else { |
| res->max_tx_qs = BE3_MAX_TX_QS; |
| } |
| |
| if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) && |
| !use_sriov && be_physfn(adapter)) |
| res->max_rss_qs = (adapter->be3_native) ? |
| BE3_MAX_RSS_QS : BE2_MAX_RSS_QS; |
| res->max_rx_qs = res->max_rss_qs + 1; |
| |
| if (be_physfn(adapter)) |
| res->max_evt_qs = (be_max_vfs(adapter) > 0) ? |
| BE3_SRIOV_MAX_EVT_QS : BE3_MAX_EVT_QS; |
| else |
| res->max_evt_qs = 1; |
| |
| res->if_cap_flags = BE_IF_CAP_FLAGS_WANT; |
| res->if_cap_flags &= ~BE_IF_FLAGS_DEFQ_RSS; |
| if (!(adapter->function_caps & BE_FUNCTION_CAPS_RSS)) |
| res->if_cap_flags &= ~BE_IF_FLAGS_RSS; |
| } |
| |
| static void be_setup_init(struct be_adapter *adapter) |
| { |
| adapter->vlan_prio_bmap = 0xff; |
| adapter->phy.link_speed = -1; |
| adapter->if_handle = -1; |
| adapter->be3_native = false; |
| adapter->if_flags = 0; |
| if (be_physfn(adapter)) |
| adapter->cmd_privileges = MAX_PRIVILEGES; |
| else |
| adapter->cmd_privileges = MIN_PRIVILEGES; |
| } |
| |
| static int be_get_sriov_config(struct be_adapter *adapter) |
| { |
| struct be_resources res = {0}; |
| int max_vfs, old_vfs; |
| |
| be_cmd_get_profile_config(adapter, &res, RESOURCE_LIMITS, 0); |
| |
| /* Some old versions of BE3 FW don't report max_vfs value */ |
| if (BE3_chip(adapter) && !res.max_vfs) { |
| max_vfs = pci_sriov_get_totalvfs(adapter->pdev); |
| res.max_vfs = max_vfs > 0 ? min(MAX_VFS, max_vfs) : 0; |
| } |
| |
| adapter->pool_res = res; |
| |
| /* If during previous unload of the driver, the VFs were not disabled, |
| * then we cannot rely on the PF POOL limits for the TotalVFs value. |
| * Instead use the TotalVFs value stored in the pci-dev struct. |
| */ |
| old_vfs = pci_num_vf(adapter->pdev); |
| if (old_vfs) { |
| dev_info(&adapter->pdev->dev, "%d VFs are already enabled\n", |
| old_vfs); |
| |
| adapter->pool_res.max_vfs = |
| pci_sriov_get_totalvfs(adapter->pdev); |
| adapter->num_vfs = old_vfs; |
| } |
| |
| return 0; |
| } |
| |
| static void be_alloc_sriov_res(struct be_adapter *adapter) |
| { |
| int old_vfs = pci_num_vf(adapter->pdev); |
| u16 num_vf_qs; |
| int status; |
| |
| be_get_sriov_config(adapter); |
| |
| if (!old_vfs) |
| pci_sriov_set_totalvfs(adapter->pdev, be_max_vfs(adapter)); |
| |
| /* When the HW is in SRIOV capable configuration, the PF-pool |
| * resources are given to PF during driver load, if there are no |
| * old VFs. This facility is not available in BE3 FW. |
| * Also, this is done by FW in Lancer chip. |
| */ |
| if (skyhawk_chip(adapter) && be_max_vfs(adapter) && !old_vfs) { |
| num_vf_qs = be_calculate_vf_qs(adapter, 0); |
| status = be_cmd_set_sriov_config(adapter, adapter->pool_res, 0, |
| num_vf_qs); |
| if (status) |
| dev_err(&adapter->pdev->dev, |
| "Failed to optimize SRIOV resources\n"); |
| } |
| } |
| |
| static int be_get_resources(struct be_adapter *adapter) |
| { |
| struct device *dev = &adapter->pdev->dev; |
| struct be_resources res = {0}; |
| int status; |
| |
| if (BEx_chip(adapter)) { |
| BEx_get_resources(adapter, &res); |
| adapter->res = res; |
| } |
| |
| /* For Lancer, SH etc read per-function resource limits from FW. |
| * GET_FUNC_CONFIG returns per function guaranteed limits. |
| * GET_PROFILE_CONFIG returns PCI-E related limits PF-pool limits |
| */ |
| if (!BEx_chip(adapter)) { |
| status = be_cmd_get_func_config(adapter, &res); |
| if (status) |
| return status; |
| |
| /* If a deafault RXQ must be created, we'll use up one RSSQ*/ |
| if (res.max_rss_qs && res.max_rss_qs == res.max_rx_qs && |
| !(res.if_cap_flags & BE_IF_FLAGS_DEFQ_RSS)) |
| res.max_rss_qs -= 1; |
| |
| /* If RoCE may be enabled stash away half the EQs for RoCE */ |
| if (be_roce_supported(adapter)) |
| res.max_evt_qs /= 2; |
| adapter->res = res; |
| } |
| |
| /* If FW supports RSS default queue, then skip creating non-RSS |
| * queue for non-IP traffic. |
| */ |
| adapter->need_def_rxq = (be_if_cap_flags(adapter) & |
| BE_IF_FLAGS_DEFQ_RSS) ? 0 : 1; |
| |
| dev_info(dev, "Max: txqs %d, rxqs %d, rss %d, eqs %d, vfs %d\n", |
| be_max_txqs(adapter), be_max_rxqs(adapter), |
| be_max_rss(adapter), be_max_eqs(adapter), |
| be_max_vfs(adapter)); |
| dev_info(dev, "Max: uc-macs %d, mc-macs %d, vlans %d\n", |
| be_max_uc(adapter), be_max_mc(adapter), |
| be_max_vlans(adapter)); |
| |
| /* Sanitize cfg_num_qs based on HW and platform limits */ |
| adapter->cfg_num_qs = min_t(u16, netif_get_num_default_rss_queues(), |
| be_max_qs(adapter)); |
| return 0; |
| } |
| |
| static int be_get_config(struct be_adapter *adapter) |
| { |
| int status, level; |
| u16 profile_id; |
| |
| status = be_cmd_get_cntl_attributes(adapter); |
| if (status) |
| return status; |
| |
| status = be_cmd_query_fw_cfg(adapter); |
| if (status) |
| return status; |
| |
| if (BEx_chip(adapter)) { |
| level = be_cmd_get_fw_log_level(adapter); |
| adapter->msg_enable = |
| level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0; |
| } |
| |
| be_cmd_get_acpi_wol_cap(adapter); |
| |
| be_cmd_query_port_name(adapter); |
| |
| if (be_physfn(adapter)) { |
| status = be_cmd_get_active_profile(adapter, &profile_id); |
| if (!status) |
| dev_info(&adapter->pdev->dev, |
| "Using profile 0x%x\n", profile_id); |
| } |
| |
| status = be_get_resources(adapter); |
| if (status) |
| return status; |
| |
| adapter->pmac_id = kcalloc(be_max_uc(adapter), |
| sizeof(*adapter->pmac_id), GFP_KERNEL); |
| if (!adapter->pmac_id) |
| return -ENOMEM; |
| |
| return 0; |
| } |
| |
| static int be_mac_setup(struct be_adapter *adapter) |
| { |
| u8 mac[ETH_ALEN]; |
| int status; |
| |
| if (is_zero_ether_addr(adapter->netdev->dev_addr)) { |
| status = be_cmd_get_perm_mac(adapter, mac); |
| if (status) |
| return status; |
| |
| memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN); |
| memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN); |
| } else { |
| /* Maybe the HW was reset; dev_addr must be re-programmed */ |
| memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN); |
| } |
| |
| /* For BE3-R VFs, the PF programs the initial MAC address */ |
| if (!(BEx_chip(adapter) && be_virtfn(adapter))) |
| be_cmd_pmac_add(adapter, mac, adapter->if_handle, |
| &adapter->pmac_id[0], 0); |
| return 0; |
| } |
| |
| static void be_schedule_worker(struct be_adapter *adapter) |
| { |
| schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000)); |
| adapter->flags |= BE_FLAGS_WORKER_SCHEDULED; |
| } |
| |
| static void be_schedule_err_detection(struct be_adapter *adapter) |
| { |
| schedule_delayed_work(&adapter->be_err_detection_work, |
| msecs_to_jiffies(1000)); |
| adapter->flags |= BE_FLAGS_ERR_DETECTION_SCHEDULED; |
| } |
| |
| static int be_setup_queues(struct be_adapter *adapter) |
| { |
| struct net_device *netdev = adapter->netdev; |
| int status; |
| |
| status = be_evt_queues_create(adapter); |
| if (status) |
| goto err; |
| |
| status = be_tx_qs_create(adapter); |
| if (status) |
| goto err; |
| |
| status = be_rx_cqs_create(adapter); |
| if (status) |
| goto err; |
| |
| status = be_mcc_queues_create(adapter); |
| if (status) |
| goto err; |
| |
| status = netif_set_real_num_rx_queues(netdev, adapter->num_rx_qs); |
| if (status) |
| goto err; |
| |
| status = netif_set_real_num_tx_queues(netdev, adapter->num_tx_qs); |
| if (status) |
| goto err; |
| |
| return 0; |
| err: |
| dev_err(&adapter->pdev->dev, "queue_setup failed\n"); |
| return status; |
| } |
| |
| int be_update_queues(struct be_adapter *adapter) |
| { |
| struct net_device *netdev = adapter->netdev; |
| int status; |
| |
| if (netif_running(netdev)) |
| be_close(netdev); |
| |
| be_cancel_worker(adapter); |
| |
| /* If any vectors have been shared with RoCE we cannot re-program |
| * the MSIx table. |
| */ |
| if (!adapter->num_msix_roce_vec) |
| be_msix_disable(adapter); |
| |
| be_clear_queues(adapter); |
| |
| if (!msix_enabled(adapter)) { |
| status = be_msix_enable(adapter); |
| if (status) |
| return status; |
| } |
| |
| status = be_setup_queues(adapter); |
| if (status) |
| return status; |
| |
| be_schedule_worker(adapter); |
| |
| if (netif_running(netdev)) |
| status = be_open(netdev); |
| |
| return status; |
| } |
| |
| static inline int fw_major_num(const char *fw_ver) |
| { |
| int fw_major = 0, i; |
| |
| i = sscanf(fw_ver, "%d.", &fw_major); |
| if (i != 1) |
| return 0; |
| |
| return fw_major; |
| } |
| |
| /* If any VFs are already enabled don't FLR the PF */ |
| static bool be_reset_required(struct be_adapter *adapter) |
| { |
| return pci_num_vf(adapter->pdev) ? false : true; |
| } |
| |
| /* Wait for the FW to be ready and perform the required initialization */ |
| static int be_func_init(struct be_adapter *adapter) |
| { |
| int status; |
| |
| status = be_fw_wait_ready(adapter); |
| if (status) |
| return status; |
| |
| if (be_reset_required(adapter)) { |
| status = be_cmd_reset_function(adapter); |
| if (status) |
| return status; |
| |
| /* Wait for interrupts to quiesce after an FLR */ |
| msleep(100); |
| |
| /* We can clear all errors when function reset succeeds */ |
| be_clear_error(adapter, BE_CLEAR_ALL); |
| } |
| |
| /* Tell FW we're ready to fire cmds */ |
| status = be_cmd_fw_init(adapter); |
| if (status) |
| return status; |
| |
| /* Allow interrupts for other ULPs running on NIC function */ |
| be_intr_set(adapter, true); |
| |
| return 0; |
| } |
| |
| static int be_setup(struct be_adapter *adapter) |
| { |
| struct device *dev = &adapter->pdev->dev; |
| int status; |
| |
| status = be_func_init(adapter); |
| if (status) |
| return status; |
| |
| be_setup_init(adapter); |
| |
| if (!lancer_chip(adapter)) |
| be_cmd_req_native_mode(adapter); |
| |
| if (!BE2_chip(adapter) && be_physfn(adapter)) |
| be_alloc_sriov_res(adapter); |
| |
| status = be_get_config(adapter); |
| if (status) |
| goto err; |
| |
| status = be_msix_enable(adapter); |
| if (status) |
| goto err; |
| |
| status = be_if_create(adapter, &adapter->if_handle, |
| be_if_cap_flags(adapter), 0); |
| if (status) |
| goto err; |
| |
| /* Updating real_num_tx/rx_queues() requires rtnl_lock() */ |
| rtnl_lock(); |
| status = be_setup_queues(adapter); |
| rtnl_unlock(); |
| if (status) |
| goto err; |
| |
| be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0); |
| |
| status = be_mac_setup(adapter); |
| if (status) |
| goto err; |
| |
| be_cmd_get_fw_ver(adapter); |
| dev_info(dev, "FW version is %s\n", adapter->fw_ver); |
| |
| if (BE2_chip(adapter) && fw_major_num(adapter->fw_ver) < 4) { |
| dev_err(dev, "Firmware on card is old(%s), IRQs may not work", |
| adapter->fw_ver); |
| dev_err(dev, "Please upgrade firmware to version >= 4.0\n"); |
| } |
| |
| if (adapter->vlans_added) |
| be_vid_config(adapter); |
| |
| be_set_rx_mode(adapter->netdev); |
| |
| status = be_cmd_set_flow_control(adapter, adapter->tx_fc, |
| adapter->rx_fc); |
| if (status) |
| be_cmd_get_flow_control(adapter, &adapter->tx_fc, |
| &adapter->rx_fc); |
| |
| dev_info(&adapter->pdev->dev, "HW Flow control - TX:%d RX:%d\n", |
| adapter->tx_fc, adapter->rx_fc); |
| |
| if (be_physfn(adapter)) |
| be_cmd_set_logical_link_config(adapter, |
| IFLA_VF_LINK_STATE_AUTO, 0); |
| |
| if (adapter->num_vfs) |
| be_vf_setup(adapter); |
| |
| status = be_cmd_get_phy_info(adapter); |
| if (!status && be_pause_supported(adapter)) |
| adapter->phy.fc_autoneg = 1; |
| |
| be_schedule_worker(adapter); |
| adapter->flags |= BE_FLAGS_SETUP_DONE; |
| return 0; |
| err: |
| be_clear(adapter); |
| return status; |
| } |
| |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| static void be_netpoll(struct net_device *netdev) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct be_eq_obj *eqo; |
| int i; |
| |
| for_all_evt_queues(adapter, eqo, i) { |
| be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0, 0); |
| napi_schedule(&eqo->napi); |
| } |
| } |
| #endif |
| |
| static char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "}; |
| |
| static bool phy_flashing_required(struct be_adapter *adapter) |
| { |
| return (adapter->phy.phy_type == PHY_TYPE_TN_8022 && |
| adapter->phy.interface_type == PHY_TYPE_BASET_10GB); |
| } |
| |
| static bool is_comp_in_ufi(struct be_adapter *adapter, |
| struct flash_section_info *fsec, int type) |
| { |
| int i = 0, img_type = 0; |
| struct flash_section_info_g2 *fsec_g2 = NULL; |
| |
| if (BE2_chip(adapter)) |
| fsec_g2 = (struct flash_section_info_g2 *)fsec; |
| |
| for (i = 0; i < MAX_FLASH_COMP; i++) { |
| if (fsec_g2) |
| img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type); |
| else |
| img_type = le32_to_cpu(fsec->fsec_entry[i].type); |
| |
| if (img_type == type) |
| return true; |
| } |
| return false; |
| |
| } |
| |
| static struct flash_section_info *get_fsec_info(struct be_adapter *adapter, |
| int header_size, |
| const struct firmware *fw) |
| { |
| struct flash_section_info *fsec = NULL; |
| const u8 *p = fw->data; |
| |
| p += header_size; |
| while (p < (fw->data + fw->size)) { |
| fsec = (struct flash_section_info *)p; |
| if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie))) |
| return fsec; |
| p += 32; |
| } |
| return NULL; |
| } |
| |
| static int be_check_flash_crc(struct be_adapter *adapter, const u8 *p, |
| u32 img_offset, u32 img_size, int hdr_size, |
| u16 img_optype, bool *crc_match) |
| { |
| u32 crc_offset; |
| int status; |
| u8 crc[4]; |
| |
| status = be_cmd_get_flash_crc(adapter, crc, img_optype, img_offset, |
| img_size - 4); |
| if (status) |
| return status; |
| |
| crc_offset = hdr_size + img_offset + img_size - 4; |
| |
| /* Skip flashing, if crc of flashed region matches */ |
| if (!memcmp(crc, p + crc_offset, 4)) |
| *crc_match = true; |
| else |
| *crc_match = false; |
| |
| return status; |
| } |
| |
| static int be_flash(struct be_adapter *adapter, const u8 *img, |
| struct be_dma_mem *flash_cmd, int optype, int img_size, |
| u32 img_offset) |
| { |
| u32 flash_op, num_bytes, total_bytes = img_size, bytes_sent = 0; |
| struct be_cmd_write_flashrom *req = flash_cmd->va; |
| int status; |
| |
| while (total_bytes) { |
| num_bytes = min_t(u32, 32*1024, total_bytes); |
| |
| total_bytes -= num_bytes; |
| |
| if (!total_bytes) { |
| if (optype == OPTYPE_PHY_FW) |
| flash_op = FLASHROM_OPER_PHY_FLASH; |
| else |
| flash_op = FLASHROM_OPER_FLASH; |
| } else { |
| if (optype == OPTYPE_PHY_FW) |
| flash_op = FLASHROM_OPER_PHY_SAVE; |
| else |
| flash_op = FLASHROM_OPER_SAVE; |
| } |
| |
| memcpy(req->data_buf, img, num_bytes); |
| img += num_bytes; |
| status = be_cmd_write_flashrom(adapter, flash_cmd, optype, |
| flash_op, img_offset + |
| bytes_sent, num_bytes); |
| if (base_status(status) == MCC_STATUS_ILLEGAL_REQUEST && |
| optype == OPTYPE_PHY_FW) |
| break; |
| else if (status) |
| return status; |
| |
| bytes_sent += num_bytes; |
| } |
| return 0; |
| } |
| |
| /* For BE2, BE3 and BE3-R */ |
| static int be_flash_BEx(struct be_adapter *adapter, |
| const struct firmware *fw, |
| struct be_dma_mem *flash_cmd, int num_of_images) |
| { |
| int img_hdrs_size = (num_of_images * sizeof(struct image_hdr)); |
| struct device *dev = &adapter->pdev->dev; |
| struct flash_section_info *fsec = NULL; |
| int status, i, filehdr_size, num_comp; |
| const struct flash_comp *pflashcomp; |
| bool crc_match; |
| const u8 *p; |
| |
| struct flash_comp gen3_flash_types[] = { |
| { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE, |
| FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI}, |
| { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT, |
| FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE}, |
| { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS, |
| FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI}, |
| { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS, |
| FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE}, |
| { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS, |
| FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE}, |
| { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP, |
| FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI}, |
| { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE, |
| FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE}, |
| { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP, |
| FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE}, |
| { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW, |
| FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI}, |
| { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW, |
| FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY} |
| }; |
| |
| struct flash_comp gen2_flash_types[] = { |
| { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE, |
| FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI}, |
| { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT, |
| FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE}, |
| { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS, |
| FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI}, |
| { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS, |
| FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE}, |
| { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS, |
| FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE}, |
| { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP, |
| FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI}, |
| { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE, |
| FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE}, |
| { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP, |
| FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE} |
| }; |
| |
| if (BE3_chip(adapter)) { |
| pflashcomp = gen3_flash_types; |
| filehdr_size = sizeof(struct flash_file_hdr_g3); |
| num_comp = ARRAY_SIZE(gen3_flash_types); |
| } else { |
| pflashcomp = gen2_flash_types; |
| filehdr_size = sizeof(struct flash_file_hdr_g2); |
| num_comp = ARRAY_SIZE(gen2_flash_types); |
| img_hdrs_size = 0; |
| } |
| |
| /* Get flash section info*/ |
| fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw); |
| if (!fsec) { |
| dev_err(dev, "Invalid Cookie. FW image may be corrupted\n"); |
| return -1; |
| } |
| for (i = 0; i < num_comp; i++) { |
| if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type)) |
| continue; |
| |
| if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) && |
| memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0) |
| continue; |
| |
| if (pflashcomp[i].optype == OPTYPE_PHY_FW && |
| !phy_flashing_required(adapter)) |
| continue; |
| |
| if (pflashcomp[i].optype == OPTYPE_REDBOOT) { |
| status = be_check_flash_crc(adapter, fw->data, |
| pflashcomp[i].offset, |
| pflashcomp[i].size, |
| filehdr_size + |
| img_hdrs_size, |
| OPTYPE_REDBOOT, &crc_match); |
| if (status) { |
| dev_err(dev, |
| "Could not get CRC for 0x%x region\n", |
| pflashcomp[i].optype); |
| continue; |
| } |
| |
| if (crc_match) |
| continue; |
| } |
| |
| p = fw->data + filehdr_size + pflashcomp[i].offset + |
| img_hdrs_size; |
| if (p + pflashcomp[i].size > fw->data + fw->size) |
| return -1; |
| |
| status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype, |
| pflashcomp[i].size, 0); |
| if (status) { |
| dev_err(dev, "Flashing section type 0x%x failed\n", |
| pflashcomp[i].img_type); |
| return status; |
| } |
| } |
| return 0; |
| } |
| |
| static u16 be_get_img_optype(struct flash_section_entry fsec_entry) |
| { |
| u32 img_type = le32_to_cpu(fsec_entry.type); |
| u16 img_optype = le16_to_cpu(fsec_entry.optype); |
| |
| if (img_optype != 0xFFFF) |
| return img_optype; |
| |
| switch (img_type) { |
| case IMAGE_FIRMWARE_iSCSI: |
| img_optype = OPTYPE_ISCSI_ACTIVE; |
| break; |
| case IMAGE_BOOT_CODE: |
| img_optype = OPTYPE_REDBOOT; |
| break; |
| case IMAGE_OPTION_ROM_ISCSI: |
| img_optype = OPTYPE_BIOS; |
| break; |
| case IMAGE_OPTION_ROM_PXE: |
| img_optype = OPTYPE_PXE_BIOS; |
| break; |
| case IMAGE_OPTION_ROM_FCoE: |
| img_optype = OPTYPE_FCOE_BIOS; |
| break; |
| case IMAGE_FIRMWARE_BACKUP_iSCSI: |
| img_optype = OPTYPE_ISCSI_BACKUP; |
| break; |
| case IMAGE_NCSI: |
| img_optype = OPTYPE_NCSI_FW; |
| break; |
| case IMAGE_FLASHISM_JUMPVECTOR: |
| img_optype = OPTYPE_FLASHISM_JUMPVECTOR; |
| break; |
| case IMAGE_FIRMWARE_PHY: |
| img_optype = OPTYPE_SH_PHY_FW; |
| break; |
| case IMAGE_REDBOOT_DIR: |
| img_optype = OPTYPE_REDBOOT_DIR; |
| break; |
| case IMAGE_REDBOOT_CONFIG: |
| img_optype = OPTYPE_REDBOOT_CONFIG; |
| break; |
| case IMAGE_UFI_DIR: |
| img_optype = OPTYPE_UFI_DIR; |
| break; |
| default: |
| break; |
| } |
| |
| return img_optype; |
| } |
| |
| static int be_flash_skyhawk(struct be_adapter *adapter, |
| const struct firmware *fw, |
| struct be_dma_mem *flash_cmd, int num_of_images) |
| { |
| int img_hdrs_size = num_of_images * sizeof(struct image_hdr); |
| bool crc_match, old_fw_img, flash_offset_support = true; |
| struct device *dev = &adapter->pdev->dev; |
| struct flash_section_info *fsec = NULL; |
| u32 img_offset, img_size, img_type; |
| u16 img_optype, flash_optype; |
| int status, i, filehdr_size; |
| const u8 *p; |
| |
| filehdr_size = sizeof(struct flash_file_hdr_g3); |
| fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw); |
| if (!fsec) { |
| dev_err(dev, "Invalid Cookie. FW image may be corrupted\n"); |
| return -EINVAL; |
| } |
| |
| retry_flash: |
| for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) { |
| img_offset = le32_to_cpu(fsec->fsec_entry[i].offset); |
| img_size = le32_to_cpu(fsec->fsec_entry[i].pad_size); |
| img_type = le32_to_cpu(fsec->fsec_entry[i].type); |
| img_optype = be_get_img_optype(fsec->fsec_entry[i]); |
| old_fw_img = fsec->fsec_entry[i].optype == 0xFFFF; |
| |
| if (img_optype == 0xFFFF) |
| continue; |
| |
| if (flash_offset_support) |
| flash_optype = OPTYPE_OFFSET_SPECIFIED; |
| else |
| flash_optype = img_optype; |
| |
| /* Don't bother verifying CRC if an old FW image is being |
| * flashed |
| */ |
| if (old_fw_img) |
| goto flash; |
| |
| status = be_check_flash_crc(adapter, fw->data, img_offset, |
| img_size, filehdr_size + |
| img_hdrs_size, flash_optype, |
| &crc_match); |
| if (base_status(status) == MCC_STATUS_ILLEGAL_REQUEST || |
| base_status(status) == MCC_STATUS_ILLEGAL_FIELD) { |
| /* The current FW image on the card does not support |
| * OFFSET based flashing. Retry using older mechanism |
| * of OPTYPE based flashing |
| */ |
| if (flash_optype == OPTYPE_OFFSET_SPECIFIED) { |
| flash_offset_support = false; |
| goto retry_flash; |
| } |
| |
| /* The current FW image on the card does not recognize |
| * the new FLASH op_type. The FW download is partially |
| * complete. Reboot the server now to enable FW image |
| * to recognize the new FLASH op_type. To complete the |
| * remaining process, download the same FW again after |
| * the reboot. |
| */ |
| dev_err(dev, "Flash incomplete. Reset the server\n"); |
| dev_err(dev, "Download FW image again after reset\n"); |
| return -EAGAIN; |
| } else if (status) { |
| dev_err(dev, "Could not get CRC for 0x%x region\n", |
| img_optype); |
| return -EFAULT; |
| } |
| |
| if (crc_match) |
| continue; |
| |
| flash: |
| p = fw->data + filehdr_size + img_offset + img_hdrs_size; |
| if (p + img_size > fw->data + fw->size) |
| return -1; |
| |
| status = be_flash(adapter, p, flash_cmd, flash_optype, img_size, |
| img_offset); |
| |
| /* The current FW image on the card does not support OFFSET |
| * based flashing. Retry using older mechanism of OPTYPE based |
| * flashing |
| */ |
| if (base_status(status) == MCC_STATUS_ILLEGAL_FIELD && |
| flash_optype == OPTYPE_OFFSET_SPECIFIED) { |
| flash_offset_support = false; |
| goto retry_flash; |
| } |
| |
| /* For old FW images ignore ILLEGAL_FIELD error or errors on |
| * UFI_DIR region |
| */ |
| if (old_fw_img && |
| (base_status(status) == MCC_STATUS_ILLEGAL_FIELD || |
| (img_optype == OPTYPE_UFI_DIR && |
| base_status(status) == MCC_STATUS_FAILED))) { |
| continue; |
| } else if (status) { |
| dev_err(dev, "Flashing section type 0x%x failed\n", |
| img_type); |
| return -EFAULT; |
| } |
| } |
| return 0; |
| } |
| |
| static int lancer_fw_download(struct be_adapter *adapter, |
| const struct firmware *fw) |
| { |
| #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024) |
| #define LANCER_FW_DOWNLOAD_LOCATION "/prg" |
| struct device *dev = &adapter->pdev->dev; |
| struct be_dma_mem flash_cmd; |
| const u8 *data_ptr = NULL; |
| u8 *dest_image_ptr = NULL; |
| size_t image_size = 0; |
| u32 chunk_size = 0; |
| u32 data_written = 0; |
| u32 offset = 0; |
| int status = 0; |
| u8 add_status = 0; |
| u8 change_status; |
| |
| if (!IS_ALIGNED(fw->size, sizeof(u32))) { |
| dev_err(dev, "FW image size should be multiple of 4\n"); |
| return -EINVAL; |
| } |
| |
| flash_cmd.size = sizeof(struct lancer_cmd_req_write_object) |
| + LANCER_FW_DOWNLOAD_CHUNK; |
| flash_cmd.va = dma_alloc_coherent(dev, flash_cmd.size, |
| &flash_cmd.dma, GFP_KERNEL); |
| if (!flash_cmd.va) |
| return -ENOMEM; |
| |
| dest_image_ptr = flash_cmd.va + |
| sizeof(struct lancer_cmd_req_write_object); |
| image_size = fw->size; |
| data_ptr = fw->data; |
| |
| while (image_size) { |
| chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK); |
| |
| /* Copy the image chunk content. */ |
| memcpy(dest_image_ptr, data_ptr, chunk_size); |
| |
| status = lancer_cmd_write_object(adapter, &flash_cmd, |
| chunk_size, offset, |
| LANCER_FW_DOWNLOAD_LOCATION, |
| &data_written, &change_status, |
| &add_status); |
| if (status) |
| break; |
| |
| offset += data_written; |
| data_ptr += data_written; |
| image_size -= data_written; |
| } |
| |
| if (!status) { |
| /* Commit the FW written */ |
| status = lancer_cmd_write_object(adapter, &flash_cmd, |
| 0, offset, |
| LANCER_FW_DOWNLOAD_LOCATION, |
| &data_written, &change_status, |
| &add_status); |
| } |
| |
| dma_free_coherent(dev, flash_cmd.size, flash_cmd.va, flash_cmd.dma); |
| if (status) { |
| dev_err(dev, "Firmware load error\n"); |
| return be_cmd_status(status); |
| } |
| |
| dev_info(dev, "Firmware flashed successfully\n"); |
| |
| if (change_status == LANCER_FW_RESET_NEEDED) { |
| dev_info(dev, "Resetting adapter to activate new FW\n"); |
| status = lancer_physdev_ctrl(adapter, |
| PHYSDEV_CONTROL_FW_RESET_MASK); |
| if (status) { |
| dev_err(dev, "Adapter busy, could not reset FW\n"); |
| dev_err(dev, "Reboot server to activate new FW\n"); |
| } |
| } else if (change_status != LANCER_NO_RESET_NEEDED) { |
| dev_info(dev, "Reboot server to activate new FW\n"); |
| } |
| |
| return 0; |
| } |
| |
| /* Check if the flash image file is compatible with the adapter that |
| * is being flashed. |
| */ |
| static bool be_check_ufi_compatibility(struct be_adapter *adapter, |
| struct flash_file_hdr_g3 *fhdr) |
| { |
| if (!fhdr) { |
| dev_err(&adapter->pdev->dev, "Invalid FW UFI file"); |
| return -1; |
| } |
| |
| /* First letter of the build version is used to identify |
| * which chip this image file is meant for. |
| */ |
| switch (fhdr->build[0]) { |
| case BLD_STR_UFI_TYPE_SH: |
| if (!skyhawk_chip(adapter)) |
| return false; |
| break; |
| case BLD_STR_UFI_TYPE_BE3: |
| if (!BE3_chip(adapter)) |
| return false; |
| break; |
| case BLD_STR_UFI_TYPE_BE2: |
| if (!BE2_chip(adapter)) |
| return false; |
| break; |
| default: |
| return false; |
| } |
| |
| return (fhdr->asic_type_rev >= adapter->asic_rev); |
| } |
| |
| static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw) |
| { |
| struct device *dev = &adapter->pdev->dev; |
| struct flash_file_hdr_g3 *fhdr3; |
| struct image_hdr *img_hdr_ptr; |
| int status = 0, i, num_imgs; |
| struct be_dma_mem flash_cmd; |
| |
| fhdr3 = (struct flash_file_hdr_g3 *)fw->data; |
| if (!be_check_ufi_compatibility(adapter, fhdr3)) { |
| dev_err(dev, "Flash image is not compatible with adapter\n"); |
| return -EINVAL; |
| } |
| |
| flash_cmd.size = sizeof(struct be_cmd_write_flashrom); |
| flash_cmd.va = dma_alloc_coherent(dev, flash_cmd.size, &flash_cmd.dma, |
| GFP_KERNEL); |
| if (!flash_cmd.va) |
| return -ENOMEM; |
| |
| num_imgs = le32_to_cpu(fhdr3->num_imgs); |
| for (i = 0; i < num_imgs; i++) { |
| img_hdr_ptr = (struct image_hdr *)(fw->data + |
| (sizeof(struct flash_file_hdr_g3) + |
| i * sizeof(struct image_hdr))); |
| if (!BE2_chip(adapter) && |
| le32_to_cpu(img_hdr_ptr->imageid) != 1) |
| continue; |
| |
| if (skyhawk_chip(adapter)) |
| status = be_flash_skyhawk(adapter, fw, &flash_cmd, |
| num_imgs); |
| else |
| status = be_flash_BEx(adapter, fw, &flash_cmd, |
| num_imgs); |
| } |
| |
| dma_free_coherent(dev, flash_cmd.size, flash_cmd.va, flash_cmd.dma); |
| if (!status) |
| dev_info(dev, "Firmware flashed successfully\n"); |
| |
| return status; |
| } |
| |
| int be_load_fw(struct be_adapter *adapter, u8 *fw_file) |
| { |
| const struct firmware *fw; |
| int status; |
| |
| if (!netif_running(adapter->netdev)) { |
| dev_err(&adapter->pdev->dev, |
| "Firmware load not allowed (interface is down)\n"); |
| return -ENETDOWN; |
| } |
| |
| status = request_firmware(&fw, fw_file, &adapter->pdev->dev); |
| if (status) |
| goto fw_exit; |
| |
| dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file); |
| |
| if (lancer_chip(adapter)) |
| status = lancer_fw_download(adapter, fw); |
| else |
| status = be_fw_download(adapter, fw); |
| |
| if (!status) |
| be_cmd_get_fw_ver(adapter); |
| |
| fw_exit: |
| release_firmware(fw); |
| return status; |
| } |
| |
| static int be_ndo_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh, |
| u16 flags) |
| { |
| struct be_adapter *adapter = netdev_priv(dev); |
| struct nlattr *attr, *br_spec; |
| int rem; |
| int status = 0; |
| u16 mode = 0; |
| |
| if (!sriov_enabled(adapter)) |
| return -EOPNOTSUPP; |
| |
| br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); |
| if (!br_spec) |
| return -EINVAL; |
| |
| nla_for_each_nested(attr, br_spec, rem) { |
| if (nla_type(attr) != IFLA_BRIDGE_MODE) |
| continue; |
| |
| if (nla_len(attr) < sizeof(mode)) |
| return -EINVAL; |
| |
| mode = nla_get_u16(attr); |
| if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB) |
| return -EINVAL; |
| |
| status = be_cmd_set_hsw_config(adapter, 0, 0, |
| adapter->if_handle, |
| mode == BRIDGE_MODE_VEPA ? |
| PORT_FWD_TYPE_VEPA : |
| PORT_FWD_TYPE_VEB, 0); |
| if (status) |
| goto err; |
| |
| dev_info(&adapter->pdev->dev, "enabled switch mode: %s\n", |
| mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB"); |
| |
| return status; |
| } |
| err: |
| dev_err(&adapter->pdev->dev, "Failed to set switch mode %s\n", |
| mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB"); |
| |
| return status; |
| } |
| |
| static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, |
| struct net_device *dev, u32 filter_mask, |
| int nlflags) |
| { |
| struct be_adapter *adapter = netdev_priv(dev); |
| int status = 0; |
| u8 hsw_mode; |
| |
| if (!sriov_enabled(adapter)) |
| return 0; |
| |
| /* BE and Lancer chips support VEB mode only */ |
| if (BEx_chip(adapter) || lancer_chip(adapter)) { |
| hsw_mode = PORT_FWD_TYPE_VEB; |
| } else { |
| status = be_cmd_get_hsw_config(adapter, NULL, 0, |
| adapter->if_handle, &hsw_mode, |
| NULL); |
| if (status) |
| return 0; |
| } |
| |
| return ndo_dflt_bridge_getlink(skb, pid, seq, dev, |
| hsw_mode == PORT_FWD_TYPE_VEPA ? |
| BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB, |
| 0, 0, nlflags); |
| } |
| |
| #ifdef CONFIG_BE2NET_VXLAN |
| /* VxLAN offload Notes: |
| * |
| * The stack defines tunnel offload flags (hw_enc_features) for IP and doesn't |
| * distinguish various types of transports (VxLAN, GRE, NVGRE ..). So, offload |
| * is expected to work across all types of IP tunnels once exported. Skyhawk |
| * supports offloads for either VxLAN or NVGRE, exclusively. So we export VxLAN |
| * offloads in hw_enc_features only when a VxLAN port is added. If other (non |
| * VxLAN) tunnels are configured while VxLAN offloads are enabled, offloads for |
| * those other tunnels are unexported on the fly through ndo_features_check(). |
| * |
| * Skyhawk supports VxLAN offloads only for one UDP dport. So, if the stack |
| * adds more than one port, disable offloads and don't re-enable them again |
| * until after all the tunnels are removed. |
| */ |
| static void be_add_vxlan_port(struct net_device *netdev, sa_family_t sa_family, |
| __be16 port) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct device *dev = &adapter->pdev->dev; |
| int status; |
| |
| if (lancer_chip(adapter) || BEx_chip(adapter)) |
| return; |
| |
| if (adapter->flags & BE_FLAGS_VXLAN_OFFLOADS) { |
| dev_info(dev, |
| "Only one UDP port supported for VxLAN offloads\n"); |
| dev_info(dev, "Disabling VxLAN offloads\n"); |
| adapter->vxlan_port_count++; |
| goto err; |
| } |
| |
| if (adapter->vxlan_port_count++ >= 1) |
| return; |
| |
| status = be_cmd_manage_iface(adapter, adapter->if_handle, |
| OP_CONVERT_NORMAL_TO_TUNNEL); |
| if (status) { |
| dev_warn(dev, "Failed to convert normal interface to tunnel\n"); |
| goto err; |
| } |
| |
| status = be_cmd_set_vxlan_port(adapter, port); |
| if (status) { |
| dev_warn(dev, "Failed to add VxLAN port\n"); |
| goto err; |
| } |
| adapter->flags |= BE_FLAGS_VXLAN_OFFLOADS; |
| adapter->vxlan_port = port; |
| |
| netdev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | |
| NETIF_F_TSO | NETIF_F_TSO6 | |
| NETIF_F_GSO_UDP_TUNNEL; |
| netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL; |
| netdev->features |= NETIF_F_GSO_UDP_TUNNEL; |
| |
| dev_info(dev, "Enabled VxLAN offloads for UDP port %d\n", |
| be16_to_cpu(port)); |
| return; |
| err: |
| be_disable_vxlan_offloads(adapter); |
| } |
| |
| static void be_del_vxlan_port(struct net_device *netdev, sa_family_t sa_family, |
| __be16 port) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| |
| if (lancer_chip(adapter) || BEx_chip(adapter)) |
| return; |
| |
| if (adapter->vxlan_port != port) |
| goto done; |
| |
| be_disable_vxlan_offloads(adapter); |
| |
| dev_info(&adapter->pdev->dev, |
| "Disabled VxLAN offloads for UDP port %d\n", |
| be16_to_cpu(port)); |
| done: |
| adapter->vxlan_port_count--; |
| } |
| |
| static netdev_features_t be_features_check(struct sk_buff *skb, |
| struct net_device *dev, |
| netdev_features_t features) |
| { |
| struct be_adapter *adapter = netdev_priv(dev); |
| u8 l4_hdr = 0; |
| |
| /* The code below restricts offload features for some tunneled packets. |
| * Offload features for normal (non tunnel) packets are unchanged. |
| */ |
| if (!skb->encapsulation || |
| !(adapter->flags & BE_FLAGS_VXLAN_OFFLOADS)) |
| return features; |
| |
| /* It's an encapsulated packet and VxLAN offloads are enabled. We |
| * should disable tunnel offload features if it's not a VxLAN packet, |
| * as tunnel offloads have been enabled only for VxLAN. This is done to |
| * allow other tunneled traffic like GRE work fine while VxLAN |
| * offloads are configured in Skyhawk-R. |
| */ |
| switch (vlan_get_protocol(skb)) { |
| case htons(ETH_P_IP): |
| l4_hdr = ip_hdr(skb)->protocol; |
| break; |
| case htons(ETH_P_IPV6): |
| l4_hdr = ipv6_hdr(skb)->nexthdr; |
| break; |
| default: |
| return features; |
| } |
| |
| if (l4_hdr != IPPROTO_UDP || |
| skb->inner_protocol_type != ENCAP_TYPE_ETHER || |
| skb->inner_protocol != htons(ETH_P_TEB) || |
| skb_inner_mac_header(skb) - skb_transport_header(skb) != |
| sizeof(struct udphdr) + sizeof(struct vxlanhdr)) |
| return features & ~(NETIF_F_ALL_CSUM | NETIF_F_GSO_MASK); |
| |
| return features; |
| } |
| #endif |
| |
| static const struct net_device_ops be_netdev_ops = { |
| .ndo_open = be_open, |
| .ndo_stop = be_close, |
| .ndo_start_xmit = be_xmit, |
| .ndo_set_rx_mode = be_set_rx_mode, |
| .ndo_set_mac_address = be_mac_addr_set, |
| .ndo_change_mtu = be_change_mtu, |
| .ndo_get_stats64 = be_get_stats64, |
| .ndo_validate_addr = eth_validate_addr, |
| .ndo_vlan_rx_add_vid = be_vlan_add_vid, |
| .ndo_vlan_rx_kill_vid = be_vlan_rem_vid, |
| .ndo_set_vf_mac = be_set_vf_mac, |
| .ndo_set_vf_vlan = be_set_vf_vlan, |
| .ndo_set_vf_rate = be_set_vf_tx_rate, |
| .ndo_get_vf_config = be_get_vf_config, |
| .ndo_set_vf_link_state = be_set_vf_link_state, |
| .ndo_set_vf_spoofchk = be_set_vf_spoofchk, |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| .ndo_poll_controller = be_netpoll, |
| #endif |
| .ndo_bridge_setlink = be_ndo_bridge_setlink, |
| .ndo_bridge_getlink = be_ndo_bridge_getlink, |
| #ifdef CONFIG_NET_RX_BUSY_POLL |
| .ndo_busy_poll = be_busy_poll, |
| #endif |
| #ifdef CONFIG_BE2NET_VXLAN |
| .ndo_add_vxlan_port = be_add_vxlan_port, |
| .ndo_del_vxlan_port = be_del_vxlan_port, |
| .ndo_features_check = be_features_check, |
| #endif |
| }; |
| |
| static void be_netdev_init(struct net_device *netdev) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| |
| netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | |
| NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM | |
| NETIF_F_HW_VLAN_CTAG_TX; |
| if (be_multi_rxq(adapter)) |
| netdev->hw_features |= NETIF_F_RXHASH; |
| |
| netdev->features |= netdev->hw_features | |
| NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER; |
| |
| netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | |
| NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; |
| |
| netdev->priv_flags |= IFF_UNICAST_FLT; |
| |
| netdev->flags |= IFF_MULTICAST; |
| |
| netif_set_gso_max_size(netdev, 65535 - ETH_HLEN); |
| |
| netdev->netdev_ops = &be_netdev_ops; |
| |
| netdev->ethtool_ops = &be_ethtool_ops; |
| } |
| |
| static void be_cleanup(struct be_adapter *adapter) |
| { |
| struct net_device *netdev = adapter->netdev; |
| |
| rtnl_lock(); |
| netif_device_detach(netdev); |
| if (netif_running(netdev)) |
| be_close(netdev); |
| rtnl_unlock(); |
| |
| be_clear(adapter); |
| } |
| |
| static int be_resume(struct be_adapter *adapter) |
| { |
| struct net_device *netdev = adapter->netdev; |
| int status; |
| |
| status = be_setup(adapter); |
| if (status) |
| return status; |
| |
| if (netif_running(netdev)) { |
| status = be_open(netdev); |
| if (status) |
| return status; |
| } |
| |
| netif_device_attach(netdev); |
| |
| return 0; |
| } |
| |
| static int be_err_recover(struct be_adapter *adapter) |
| { |
| struct device *dev = &adapter->pdev->dev; |
| int status; |
| |
| status = be_resume(adapter); |
| if (status) |
| goto err; |
| |
| dev_info(dev, "Adapter recovery successful\n"); |
| return 0; |
| err: |
| if (be_physfn(adapter)) |
| dev_err(dev, "Adapter recovery failed\n"); |
| else |
| dev_err(dev, "Re-trying adapter recovery\n"); |
| |
| return status; |
| } |
| |
| static void be_err_detection_task(struct work_struct *work) |
| { |
| struct be_adapter *adapter = |
| container_of(work, struct be_adapter, |
| be_err_detection_work.work); |
| int status = 0; |
| |
| be_detect_error(adapter); |
| |
| if (be_check_error(adapter, BE_ERROR_HW)) { |
| be_cleanup(adapter); |
| |
| /* As of now error recovery support is in Lancer only */ |
| if (lancer_chip(adapter)) |
| status = be_err_recover(adapter); |
| } |
| |
| /* Always attempt recovery on VFs */ |
| if (!status || be_virtfn(adapter)) |
| be_schedule_err_detection(adapter); |
| } |
| |
| static void be_log_sfp_info(struct be_adapter *adapter) |
| { |
| int status; |
| |
| status = be_cmd_query_sfp_info(adapter); |
| if (!status) { |
| dev_err(&adapter->pdev->dev, |
| "Unqualified SFP+ detected on %c from %s part no: %s", |
| adapter->port_name, adapter->phy.vendor_name, |
| adapter->phy.vendor_pn); |
| } |
| adapter->flags &= ~BE_FLAGS_EVT_INCOMPATIBLE_SFP; |
| } |
| |
| static void be_worker(struct work_struct *work) |
| { |
| struct be_adapter *adapter = |
| container_of(work, struct be_adapter, work.work); |
| struct be_rx_obj *rxo; |
| int i; |
| |
| /* when interrupts are not yet enabled, just reap any pending |
| * mcc completions |
| */ |
| if (!netif_running(adapter->netdev)) { |
| local_bh_disable(); |
| be_process_mcc(adapter); |
| local_bh_enable(); |
| goto reschedule; |
| } |
| |
| if (!adapter->stats_cmd_sent) { |
| if (lancer_chip(adapter)) |
| lancer_cmd_get_pport_stats(adapter, |
| &adapter->stats_cmd); |
| else |
| be_cmd_get_stats(adapter, &adapter->stats_cmd); |
| } |
| |
| if (be_physfn(adapter) && |
| MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0) |
| be_cmd_get_die_temperature(adapter); |
| |
| for_all_rx_queues(adapter, rxo, i) { |
| /* Replenish RX-queues starved due to memory |
| * allocation failures. |
| */ |
| if (rxo->rx_post_starved) |
| be_post_rx_frags(rxo, GFP_KERNEL, MAX_RX_POST); |
| } |
| |
| /* EQ-delay update for Skyhawk is done while notifying EQ */ |
| if (!skyhawk_chip(adapter)) |
| be_eqd_update(adapter, false); |
| |
| if (adapter->flags & BE_FLAGS_EVT_INCOMPATIBLE_SFP) |
| be_log_sfp_info(adapter); |
| |
| reschedule: |
| adapter->work_counter++; |
| schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000)); |
| } |
| |
| static void be_unmap_pci_bars(struct be_adapter *adapter) |
| { |
| if (adapter->csr) |
| pci_iounmap(adapter->pdev, adapter->csr); |
| if (adapter->db) |
| pci_iounmap(adapter->pdev, adapter->db); |
| } |
| |
| static int db_bar(struct be_adapter *adapter) |
| { |
| if (lancer_chip(adapter) || be_virtfn(adapter)) |
| return 0; |
| else |
| return 4; |
| } |
| |
| static int be_roce_map_pci_bars(struct be_adapter *adapter) |
| { |
| if (skyhawk_chip(adapter)) { |
| adapter->roce_db.size = 4096; |
| adapter->roce_db.io_addr = pci_resource_start(adapter->pdev, |
| db_bar(adapter)); |
| adapter->roce_db.total_size = pci_resource_len(adapter->pdev, |
| db_bar(adapter)); |
| } |
| return 0; |
| } |
| |
| static int be_map_pci_bars(struct be_adapter *adapter) |
| { |
| struct pci_dev *pdev = adapter->pdev; |
| u8 __iomem *addr; |
| u32 sli_intf; |
| |
| pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf); |
| adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >> |
| SLI_INTF_FAMILY_SHIFT; |
| adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0; |
| |
| if (BEx_chip(adapter) && be_physfn(adapter)) { |
| adapter->csr = pci_iomap(pdev, 2, 0); |
| if (!adapter->csr) |
| return -ENOMEM; |
| } |
| |
| addr = pci_iomap(pdev, db_bar(adapter), 0); |
| if (!addr) |
| goto pci_map_err; |
| adapter->db = addr; |
| |
| if (skyhawk_chip(adapter) || BEx_chip(adapter)) { |
| if (be_physfn(adapter)) { |
| /* PCICFG is the 2nd BAR in BE2 */ |
| addr = pci_iomap(pdev, BE2_chip(adapter) ? 1 : 0, 0); |
| if (!addr) |
| goto pci_map_err; |
| adapter->pcicfg = addr; |
| } else { |
| adapter->pcicfg = adapter->db + SRIOV_VF_PCICFG_OFFSET; |
| } |
| } |
| |
| be_roce_map_pci_bars(adapter); |
| return 0; |
| |
| pci_map_err: |
| dev_err(&pdev->dev, "Error in mapping PCI BARs\n"); |
| be_unmap_pci_bars(adapter); |
| return -ENOMEM; |
| } |
| |
| static void be_drv_cleanup(struct be_adapter *adapter) |
| { |
| struct be_dma_mem *mem = &adapter->mbox_mem_alloced; |
| struct device *dev = &adapter->pdev->dev; |
| |
| if (mem->va) |
| dma_free_coherent(dev, mem->size, mem->va, mem->dma); |
| |
| mem = &adapter->rx_filter; |
| if (mem->va) |
| dma_free_coherent(dev, mem->size, mem->va, mem->dma); |
| |
| mem = &adapter->stats_cmd; |
| if (mem->va) |
| dma_free_coherent(dev, mem->size, mem->va, mem->dma); |
| } |
| |
| /* Allocate and initialize various fields in be_adapter struct */ |
| static int be_drv_init(struct be_adapter *adapter) |
| { |
| struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced; |
| struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem; |
| struct be_dma_mem *rx_filter = &adapter->rx_filter; |
| struct be_dma_mem *stats_cmd = &adapter->stats_cmd; |
| struct device *dev = &adapter->pdev->dev; |
| int status = 0; |
| |
| mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16; |
| mbox_mem_alloc->va = dma_alloc_coherent(dev, mbox_mem_alloc->size, |
| &mbox_mem_alloc->dma, |
| GFP_KERNEL); |
| if (!mbox_mem_alloc->va) |
| return -ENOMEM; |
| |
| mbox_mem_align->size = sizeof(struct be_mcc_mailbox); |
| mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16); |
| mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16); |
| memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox)); |
| |
| rx_filter->size = sizeof(struct be_cmd_req_rx_filter); |
| rx_filter->va = dma_zalloc_coherent(dev, rx_filter->size, |
| &rx_filter->dma, GFP_KERNEL); |
| if (!rx_filter->va) { |
| status = -ENOMEM; |
| goto free_mbox; |
| } |
| |
| if (lancer_chip(adapter)) |
| stats_cmd->size = sizeof(struct lancer_cmd_req_pport_stats); |
| else if (BE2_chip(adapter)) |
| stats_cmd->size = sizeof(struct be_cmd_req_get_stats_v0); |
| else if (BE3_chip(adapter)) |
| stats_cmd->size = sizeof(struct be_cmd_req_get_stats_v1); |
| else |
| stats_cmd->size = sizeof(struct be_cmd_req_get_stats_v2); |
| stats_cmd->va = dma_zalloc_coherent(dev, stats_cmd->size, |
| &stats_cmd->dma, GFP_KERNEL); |
| if (!stats_cmd->va) { |
| status = -ENOMEM; |
| goto free_rx_filter; |
| } |
| |
| mutex_init(&adapter->mbox_lock); |
| spin_lock_init(&adapter->mcc_lock); |
| spin_lock_init(&adapter->mcc_cq_lock); |
| init_completion(&adapter->et_cmd_compl); |
| |
| pci_save_state(adapter->pdev); |
| |
| INIT_DELAYED_WORK(&adapter->work, be_worker); |
| INIT_DELAYED_WORK(&adapter->be_err_detection_work, |
| be_err_detection_task); |
| |
| adapter->rx_fc = true; |
| adapter->tx_fc = true; |
| |
| /* Must be a power of 2 or else MODULO will BUG_ON */ |
| adapter->be_get_temp_freq = 64; |
| |
| return 0; |
| |
| free_rx_filter: |
| dma_free_coherent(dev, rx_filter->size, rx_filter->va, rx_filter->dma); |
| free_mbox: |
| dma_free_coherent(dev, mbox_mem_alloc->size, mbox_mem_alloc->va, |
| mbox_mem_alloc->dma); |
| return status; |
| } |
| |
| static void be_remove(struct pci_dev *pdev) |
| { |
| struct be_adapter *adapter = pci_get_drvdata(pdev); |
| |
| if (!adapter) |
| return; |
| |
| be_roce_dev_remove(adapter); |
| be_intr_set(adapter, false); |
| |
| be_cancel_err_detection(adapter); |
| |
| unregister_netdev(adapter->netdev); |
| |
| be_clear(adapter); |
| |
| /* tell fw we're done with firing cmds */ |
| be_cmd_fw_clean(adapter); |
| |
| be_unmap_pci_bars(adapter); |
| be_drv_cleanup(adapter); |
| |
| pci_disable_pcie_error_reporting(pdev); |
| |
| pci_release_regions(pdev); |
| pci_disable_device(pdev); |
| |
| free_netdev(adapter->netdev); |
| } |
| |
| static ssize_t be_hwmon_show_temp(struct device *dev, |
| struct device_attribute *dev_attr, |
| char *buf) |
| { |
| struct be_adapter *adapter = dev_get_drvdata(dev); |
| |
| /* Unit: millidegree Celsius */ |
| if (adapter->hwmon_info.be_on_die_temp == BE_INVALID_DIE_TEMP) |
| return -EIO; |
| else |
| return sprintf(buf, "%u\n", |
| adapter->hwmon_info.be_on_die_temp * 1000); |
| } |
| |
| static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, |
| be_hwmon_show_temp, NULL, 1); |
| |
| static struct attribute *be_hwmon_attrs[] = { |
| &sensor_dev_attr_temp1_input.dev_attr.attr, |
| NULL |
| }; |
| |
| ATTRIBUTE_GROUPS(be_hwmon); |
| |
| static char *mc_name(struct be_adapter *adapter) |
| { |
| char *str = ""; /* default */ |
| |
| switch (adapter->mc_type) { |
| case UMC: |
| str = "UMC"; |
| break; |
| case FLEX10: |
| str = "FLEX10"; |
| break; |
| case vNIC1: |
| str = "vNIC-1"; |
| break; |
| case nPAR: |
| str = "nPAR"; |
| break; |
| case UFP: |
| str = "UFP"; |
| break; |
| case vNIC2: |
| str = "vNIC-2"; |
| break; |
| default: |
| str = ""; |
| } |
| |
| return str; |
| } |
| |
| static inline char *func_name(struct be_adapter *adapter) |
| { |
| return be_physfn(adapter) ? "PF" : "VF"; |
| } |
| |
| static inline char *nic_name(struct pci_dev *pdev) |
| { |
| switch (pdev->device) { |
| case OC_DEVICE_ID1: |
| return OC_NAME; |
| case OC_DEVICE_ID2: |
| return OC_NAME_BE; |
| case OC_DEVICE_ID3: |
| case OC_DEVICE_ID4: |
| return OC_NAME_LANCER; |
| case BE_DEVICE_ID2: |
| return BE3_NAME; |
| case OC_DEVICE_ID5: |
| case OC_DEVICE_ID6: |
| return OC_NAME_SH; |
| default: |
| return BE_NAME; |
| } |
| } |
| |
| static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id) |
| { |
| struct be_adapter *adapter; |
| struct net_device *netdev; |
| int status = 0; |
| |
| dev_info(&pdev->dev, "%s version is %s\n", DRV_NAME, DRV_VER); |
| |
| status = pci_enable_device(pdev); |
| if (status) |
| goto do_none; |
| |
| status = pci_request_regions(pdev, DRV_NAME); |
| if (status) |
| goto disable_dev; |
| pci_set_master(pdev); |
| |
| netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS); |
| if (!netdev) { |
| status = -ENOMEM; |
| goto rel_reg; |
| } |
| adapter = netdev_priv(netdev); |
| adapter->pdev = pdev; |
| pci_set_drvdata(pdev, adapter); |
| adapter->netdev = netdev; |
| SET_NETDEV_DEV(netdev, &pdev->dev); |
| |
| status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); |
| if (!status) { |
| netdev->features |= NETIF_F_HIGHDMA; |
| } else { |
| status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); |
| if (status) { |
| dev_err(&pdev->dev, "Could not set PCI DMA Mask\n"); |
| goto free_netdev; |
| } |
| } |
| |
| status = pci_enable_pcie_error_reporting(pdev); |
| if (!status) |
| dev_info(&pdev->dev, "PCIe error reporting enabled\n"); |
| |
| status = be_map_pci_bars(adapter); |
| if (status) |
| goto free_netdev; |
| |
| status = be_drv_init(adapter); |
| if (status) |
| goto unmap_bars; |
| |
| status = be_setup(adapter); |
| if (status) |
| goto drv_cleanup; |
| |
| be_netdev_init(netdev); |
| status = register_netdev(netdev); |
| if (status != 0) |
| goto unsetup; |
| |
| be_roce_dev_add(adapter); |
| |
| be_schedule_err_detection(adapter); |
| |
| /* On Die temperature not supported for VF. */ |
| if (be_physfn(adapter) && IS_ENABLED(CONFIG_BE2NET_HWMON)) { |
| adapter->hwmon_info.hwmon_dev = |
| devm_hwmon_device_register_with_groups(&pdev->dev, |
| DRV_NAME, |
| adapter, |
| be_hwmon_groups); |
| adapter->hwmon_info.be_on_die_temp = BE_INVALID_DIE_TEMP; |
| } |
| |
| dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev), |
| func_name(adapter), mc_name(adapter), adapter->port_name); |
| |
| return 0; |
| |
| unsetup: |
| be_clear(adapter); |
| drv_cleanup: |
| be_drv_cleanup(adapter); |
| unmap_bars: |
| be_unmap_pci_bars(adapter); |
| free_netdev: |
| free_netdev(netdev); |
| rel_reg: |
| pci_release_regions(pdev); |
| disable_dev: |
| pci_disable_device(pdev); |
| do_none: |
| dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev)); |
| return status; |
| } |
| |
| static int be_suspend(struct pci_dev *pdev, pm_message_t state) |
| { |
| struct be_adapter *adapter = pci_get_drvdata(pdev); |
| |
| if (adapter->wol_en) |
| be_setup_wol(adapter, true); |
| |
| be_intr_set(adapter, false); |
| be_cancel_err_detection(adapter); |
| |
| be_cleanup(adapter); |
| |
| pci_save_state(pdev); |
| pci_disable_device(pdev); |
| pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
| return 0; |
| } |
| |
| static int be_pci_resume(struct pci_dev *pdev) |
| { |
| struct be_adapter *adapter = pci_get_drvdata(pdev); |
| int status = 0; |
| |
| status = pci_enable_device(pdev); |
| if (status) |
| return status; |
| |
| pci_set_power_state(pdev, PCI_D0); |
| pci_restore_state(pdev); |
| |
| status = be_resume(adapter); |
| if (status) |
| return status; |
| |
| be_schedule_err_detection(adapter); |
| |
| if (adapter->wol_en) |
| be_setup_wol(adapter, false); |
| |
| return 0; |
| } |
| |
| /* |
| * An FLR will stop BE from DMAing any data. |
| */ |
| static void be_shutdown(struct pci_dev *pdev) |
| { |
| struct be_adapter *adapter = pci_get_drvdata(pdev); |
| |
| if (!adapter) |
| return; |
| |
| be_roce_dev_shutdown(adapter); |
| cancel_delayed_work_sync(&adapter->work); |
| be_cancel_err_detection(adapter); |
| |
| netif_device_detach(adapter->netdev); |
| |
| be_cmd_reset_function(adapter); |
| |
| pci_disable_device(pdev); |
| } |
| |
| static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev, |
| pci_channel_state_t state) |
| { |
| struct be_adapter *adapter = pci_get_drvdata(pdev); |
| |
| dev_err(&adapter->pdev->dev, "EEH error detected\n"); |
| |
| if (!be_check_error(adapter, BE_ERROR_EEH)) { |
| be_set_error(adapter, BE_ERROR_EEH); |
| |
| be_cancel_err_detection(adapter); |
| |
| be_cleanup(adapter); |
| } |
| |
| if (state == pci_channel_io_perm_failure) |
| return PCI_ERS_RESULT_DISCONNECT; |
| |
| pci_disable_device(pdev); |
| |
| /* The error could cause the FW to trigger a flash debug dump. |
| * Resetting the card while flash dump is in progress |
| * can cause it not to recover; wait for it to finish. |
| * Wait only for first function as it is needed only once per |
| * adapter. |
| */ |
| if (pdev->devfn == 0) |
| ssleep(30); |
| |
| return PCI_ERS_RESULT_NEED_RESET; |
| } |
| |
| static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev) |
| { |
| struct be_adapter *adapter = pci_get_drvdata(pdev); |
| int status; |
| |
| dev_info(&adapter->pdev->dev, "EEH reset\n"); |
| |
| status = pci_enable_device(pdev); |
| if (status) |
| return PCI_ERS_RESULT_DISCONNECT; |
| |
| pci_set_master(pdev); |
| pci_set_power_state(pdev, PCI_D0); |
| pci_restore_state(pdev); |
| |
| /* Check if card is ok and fw is ready */ |
| dev_info(&adapter->pdev->dev, |
| "Waiting for FW to be ready after EEH reset\n"); |
| status = be_fw_wait_ready(adapter); |
| if (status) |
| return PCI_ERS_RESULT_DISCONNECT; |
| |
| pci_cleanup_aer_uncorrect_error_status(pdev); |
| be_clear_error(adapter, BE_CLEAR_ALL); |
| return PCI_ERS_RESULT_RECOVERED; |
| } |
| |
| static void be_eeh_resume(struct pci_dev *pdev) |
| { |
| int status = 0; |
| struct be_adapter *adapter = pci_get_drvdata(pdev); |
| |
| dev_info(&adapter->pdev->dev, "EEH resume\n"); |
| |
| pci_save_state(pdev); |
| |
| status = be_resume(adapter); |
| if (status) |
| goto err; |
| |
| be_schedule_err_detection(adapter); |
| return; |
| err: |
| dev_err(&adapter->pdev->dev, "EEH resume failed\n"); |
| } |
| |
| static int be_pci_sriov_configure(struct pci_dev *pdev, int num_vfs) |
| { |
| struct be_adapter *adapter = pci_get_drvdata(pdev); |
| u16 num_vf_qs; |
| int status; |
| |
| if (!num_vfs) |
| be_vf_clear(adapter); |
| |
| adapter->num_vfs = num_vfs; |
| |
| if (adapter->num_vfs == 0 && pci_vfs_assigned(pdev)) { |
| dev_warn(&pdev->dev, |
| "Cannot disable VFs while they are assigned\n"); |
| return -EBUSY; |
| } |
| |
| /* When the HW is in SRIOV capable configuration, the PF-pool resources |
| * are equally distributed across the max-number of VFs. The user may |
| * request only a subset of the max-vfs to be enabled. |
| * Based on num_vfs, redistribute the resources across num_vfs so that |
| * each VF will have access to more number of resources. |
| * This facility is not available in BE3 FW. |
| * Also, this is done by FW in Lancer chip. |
| */ |
| if (skyhawk_chip(adapter) && !pci_num_vf(pdev)) { |
| num_vf_qs = be_calculate_vf_qs(adapter, adapter->num_vfs); |
| status = be_cmd_set_sriov_config(adapter, adapter->pool_res, |
| adapter->num_vfs, num_vf_qs); |
| if (status) |
| dev_err(&pdev->dev, |
| "Failed to optimize SR-IOV resources\n"); |
| } |
| |
| status = be_get_resources(adapter); |
| if (status) |
| return be_cmd_status(status); |
| |
| /* Updating real_num_tx/rx_queues() requires rtnl_lock() */ |
| rtnl_lock(); |
| status = be_update_queues(adapter); |
| rtnl_unlock(); |
| if (status) |
| return be_cmd_status(status); |
| |
| if (adapter->num_vfs) |
| status = be_vf_setup(adapter); |
| |
| if (!status) |
| return adapter->num_vfs; |
| |
| return 0; |
| } |
| |
| static const struct pci_error_handlers be_eeh_handlers = { |
| .error_detected = be_eeh_err_detected, |
| .slot_reset = be_eeh_reset, |
| .resume = be_eeh_resume, |
| }; |
| |
| static struct pci_driver be_driver = { |
| .name = DRV_NAME, |
| .id_table = be_dev_ids, |
| .probe = be_probe, |
| .remove = be_remove, |
| .suspend = be_suspend, |
| .resume = be_pci_resume, |
| .shutdown = be_shutdown, |
| .sriov_configure = be_pci_sriov_configure, |
| .err_handler = &be_eeh_handlers |
| }; |
| |
| static int __init be_init_module(void) |
| { |
| if (rx_frag_size != 8192 && rx_frag_size != 4096 && |
| rx_frag_size != 2048) { |
| printk(KERN_WARNING DRV_NAME |
| " : Module param rx_frag_size must be 2048/4096/8192." |
| " Using 2048\n"); |
| rx_frag_size = 2048; |
| } |
| |
| if (num_vfs > 0) { |
| pr_info(DRV_NAME " : Module param num_vfs is obsolete."); |
| pr_info(DRV_NAME " : Use sysfs method to enable VFs\n"); |
| } |
| |
| return pci_register_driver(&be_driver); |
| } |
| module_init(be_init_module); |
| |
| static void __exit be_exit_module(void) |
| { |
| pci_unregister_driver(&be_driver); |
| } |
| module_exit(be_exit_module); |