/*- * Copyright (c) 2015,2016 Annapurna Labs Ltd. and affiliates * All rights reserved. * * Developed by Semihalf. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "opt_inet.h" #include "opt_inet6.h" #include #include #include #include #include #include #include #include #include #include #include #ifdef INET #include #include #include #include #endif #ifdef INET6 #include #endif #include #include #include #include #include #include #include #include #include #include #include #include "al_eth.h" #include "al_init_eth_lm.h" #include "arm/annapurna/alpine/alpine_serdes.h" #include "miibus_if.h" #define device_printf_dbg(fmt, ...) do { \ if (AL_DBG_LEVEL >= AL_DBG_LEVEL_DBG) { AL_DBG_LOCK(); \ device_printf(fmt, __VA_ARGS__); AL_DBG_UNLOCK();} \ } while (0) MALLOC_DEFINE(M_IFAL, "if_al_malloc", "All allocated data for AL ETH driver"); /* move out to some pci header file */ #define PCI_VENDOR_ID_ANNAPURNA_LABS 0x1c36 #define PCI_DEVICE_ID_AL_ETH 0x0001 #define PCI_DEVICE_ID_AL_ETH_ADVANCED 0x0002 #define PCI_DEVICE_ID_AL_ETH_NIC 0x0003 #define PCI_DEVICE_ID_AL_ETH_FPGA_NIC 0x0030 #define PCI_DEVICE_ID_AL_CRYPTO 0x0011 #define PCI_DEVICE_ID_AL_CRYPTO_VF 0x8011 #define PCI_DEVICE_ID_AL_RAID_DMA 0x0021 #define PCI_DEVICE_ID_AL_RAID_DMA_VF 0x8021 #define PCI_DEVICE_ID_AL_USB 0x0041 #define MAC_ADDR_STR "%02x:%02x:%02x:%02x:%02x:%02x" #define MAC_ADDR(addr) addr[0], addr[1], addr[2], addr[3], addr[4], addr[5] #define AL_ETH_MAC_TABLE_UNICAST_IDX_BASE 0 #define AL_ETH_MAC_TABLE_UNICAST_MAX_COUNT 4 #define AL_ETH_MAC_TABLE_ALL_MULTICAST_IDX (AL_ETH_MAC_TABLE_UNICAST_IDX_BASE + \ AL_ETH_MAC_TABLE_UNICAST_MAX_COUNT) #define AL_ETH_MAC_TABLE_DROP_IDX (AL_ETH_FWD_MAC_NUM - 1) #define AL_ETH_MAC_TABLE_BROADCAST_IDX (AL_ETH_MAC_TABLE_DROP_IDX - 1) #define AL_ETH_THASH_UDMA_SHIFT 0 #define AL_ETH_THASH_UDMA_MASK (0xF << AL_ETH_THASH_UDMA_SHIFT) #define AL_ETH_THASH_Q_SHIFT 4 #define AL_ETH_THASH_Q_MASK (0x3 << AL_ETH_THASH_Q_SHIFT) /* the following defines should be moved to hal */ #define AL_ETH_FSM_ENTRY_IPV4_TCP 0 #define AL_ETH_FSM_ENTRY_IPV4_UDP 1 #define AL_ETH_FSM_ENTRY_IPV6_TCP 2 #define AL_ETH_FSM_ENTRY_IPV6_UDP 3 #define AL_ETH_FSM_ENTRY_IPV6_NO_UDP_TCP 4 #define AL_ETH_FSM_ENTRY_IPV4_NO_UDP_TCP 5 /* FSM DATA format */ #define AL_ETH_FSM_DATA_OUTER_2_TUPLE 0 #define AL_ETH_FSM_DATA_OUTER_4_TUPLE 1 #define AL_ETH_FSM_DATA_INNER_2_TUPLE 2 #define AL_ETH_FSM_DATA_INNER_4_TUPLE 3 #define AL_ETH_FSM_DATA_HASH_SEL (1 << 2) #define AL_ETH_FSM_DATA_DEFAULT_Q 0 #define AL_ETH_FSM_DATA_DEFAULT_UDMA 0 #define AL_BR_SIZE 512 #define AL_TSO_SIZE 65500 #define AL_DEFAULT_MTU 1500 #define CSUM_OFFLOAD (CSUM_IP|CSUM_TCP|CSUM_UDP|CSUM_SCTP) #define AL_IP_ALIGNMENT_OFFSET 2 #define SFP_I2C_ADDR 0x50 #define AL_MASK_GROUP_A_INT 0x7 #define AL_MASK_GROUP_B_INT 0xF #define AL_MASK_GROUP_C_INT 0xF #define AL_MASK_GROUP_D_INT 0xFFFFFFFF #define AL_REG_OFFSET_FORWARD_INTR (0x1800000 + 0x1210) #define AL_EN_FORWARD_INTR 0x1FFFF #define AL_DIS_FORWARD_INTR 0 #define AL_M2S_MASK_INIT 0x480 #define AL_S2M_MASK_INIT 0x1E0 #define AL_M2S_S2M_MASK_NOT_INT (0x3f << 25) #define AL_10BASE_T_SPEED 10 #define AL_100BASE_TX_SPEED 100 #define AL_1000BASE_T_SPEED 1000 #define AL_RX_LOCK_INIT(_sc) mtx_init(&((_sc)->if_rx_lock), "ALRXL", "ALRXL", MTX_DEF) #define AL_RX_LOCK(_sc) mtx_lock(&((_sc)->if_rx_lock)) #define AL_RX_UNLOCK(_sc) mtx_unlock(&((_sc)->if_rx_lock)) /* helper functions */ static int al_is_device_supported(device_t); static void al_eth_init_rings(struct al_eth_adapter *); static void al_eth_flow_ctrl_disable(struct al_eth_adapter *); int al_eth_fpga_read_pci_config(void *, int, uint32_t *); int al_eth_fpga_write_pci_config(void *, int, uint32_t); int al_eth_read_pci_config(void *, int, uint32_t *); int al_eth_write_pci_config(void *, int, uint32_t); void al_eth_irq_config(uint32_t *, uint32_t); void al_eth_forward_int_config(uint32_t *, uint32_t); static void al_eth_start_xmit(void *, int); static void al_eth_rx_recv_work(void *, int); static int al_eth_up(struct al_eth_adapter *); static void al_eth_down(struct al_eth_adapter *); static void al_eth_interrupts_unmask(struct al_eth_adapter *); static void al_eth_interrupts_mask(struct al_eth_adapter *); static int al_eth_check_mtu(struct al_eth_adapter *, int); static uint64_t al_get_counter(if_t, ift_counter); static void al_eth_req_rx_buff_size(struct al_eth_adapter *, int); static int al_eth_board_params_init(struct al_eth_adapter *); static int al_media_update(if_t); static void al_media_status(if_t, struct ifmediareq *); static int al_eth_function_reset(struct al_eth_adapter *); static int al_eth_hw_init_adapter(struct al_eth_adapter *); static void al_eth_serdes_init(struct al_eth_adapter *); static void al_eth_lm_config(struct al_eth_adapter *); static int al_eth_hw_init(struct al_eth_adapter *); static void al_tick_stats(void *); /* ifnet entry points */ static void al_init(void *); static int al_mq_start(if_t, struct mbuf *); static void al_qflush(if_t); static int al_ioctl(if_t ifp, u_long, caddr_t); /* bus entry points */ static int al_probe(device_t); static int al_attach(device_t); static int al_detach(device_t); static int al_shutdown(device_t); /* mii bus support routines */ static int al_miibus_readreg(device_t, int, int); static int al_miibus_writereg(device_t, int, int, int); static void al_miibus_statchg(device_t); static void al_miibus_linkchg(device_t); struct al_eth_adapter* g_adapters[16]; uint32_t g_adapters_count; /* flag for napi-like mbuf processing, controlled from sysctl */ static int napi = 0; static device_method_t al_methods[] = { /* Device interface */ DEVMETHOD(device_probe, al_probe), DEVMETHOD(device_attach, al_attach), DEVMETHOD(device_detach, al_detach), DEVMETHOD(device_shutdown, al_shutdown), DEVMETHOD(miibus_readreg, al_miibus_readreg), DEVMETHOD(miibus_writereg, al_miibus_writereg), DEVMETHOD(miibus_statchg, al_miibus_statchg), DEVMETHOD(miibus_linkchg, al_miibus_linkchg), { 0, 0 } }; static driver_t al_driver = { "al", al_methods, sizeof(struct al_eth_adapter), }; DRIVER_MODULE(al, pci, al_driver, 0, 0); DRIVER_MODULE(miibus, al, miibus_driver, 0, 0); static int al_probe(device_t dev) { if ((al_is_device_supported(dev)) != 0) { device_set_desc(dev, "al"); return (BUS_PROBE_DEFAULT); } return (ENXIO); } static int al_attach(device_t dev) { struct al_eth_adapter *adapter; struct sysctl_oid_list *child; struct sysctl_ctx_list *ctx; struct sysctl_oid *tree; if_t ifp; uint32_t dev_id; uint32_t rev_id; int bar_udma; int bar_mac; int bar_ec; int err; err = 0; ifp = NULL; dev_id = rev_id = 0; ctx = device_get_sysctl_ctx(dev); tree = SYSCTL_PARENT(device_get_sysctl_tree(dev)); child = SYSCTL_CHILDREN(tree); if (g_adapters_count == 0) { SYSCTL_ADD_INT(ctx, child, OID_AUTO, "napi", CTLFLAG_RW, &napi, 0, "Use pseudo-napi mechanism"); } adapter = device_get_softc(dev); adapter->dev = dev; adapter->board_type = ALPINE_INTEGRATED; snprintf(adapter->name, AL_ETH_NAME_MAX_LEN, "%s", device_get_nameunit(dev)); AL_RX_LOCK_INIT(adapter); g_adapters[g_adapters_count] = adapter; bar_udma = PCIR_BAR(AL_ETH_UDMA_BAR); adapter->udma_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &bar_udma, RF_ACTIVE); if (adapter->udma_res == NULL) { device_printf(adapter->dev, "could not allocate memory resources for DMA.\n"); err = ENOMEM; goto err_res_dma; } adapter->udma_base = al_bus_dma_to_va(rman_get_bustag(adapter->udma_res), rman_get_bushandle(adapter->udma_res)); bar_mac = PCIR_BAR(AL_ETH_MAC_BAR); adapter->mac_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &bar_mac, RF_ACTIVE); if (adapter->mac_res == NULL) { device_printf(adapter->dev, "could not allocate memory resources for MAC.\n"); err = ENOMEM; goto err_res_mac; } adapter->mac_base = al_bus_dma_to_va(rman_get_bustag(adapter->mac_res), rman_get_bushandle(adapter->mac_res)); bar_ec = PCIR_BAR(AL_ETH_EC_BAR); adapter->ec_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &bar_ec, RF_ACTIVE); if (adapter->ec_res == NULL) { device_printf(adapter->dev, "could not allocate memory resources for EC.\n"); err = ENOMEM; goto err_res_ec; } adapter->ec_base = al_bus_dma_to_va(rman_get_bustag(adapter->ec_res), rman_get_bushandle(adapter->ec_res)); adapter->netdev = ifp = if_alloc(IFT_ETHER); if_setsoftc(ifp, adapter); if_initname(ifp, device_get_name(dev), device_get_unit(dev)); if_setdrvflagbits(ifp, 0, IFF_DRV_OACTIVE); if_setflags(ifp, if_getdrvflags(ifp)); if_setflagbits(ifp, IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST | IFF_ALLMULTI, 0); if_settransmitfn(ifp, al_mq_start); if_setqflushfn(ifp, al_qflush); if_setioctlfn(ifp, al_ioctl); if_setinitfn(ifp, al_init); if_setgetcounterfn(ifp, al_get_counter); if_setmtu(ifp, AL_DEFAULT_MTU); adapter->if_flags = if_getflags(ifp); if_setcapabilities(ifp, if_getcapenable(ifp) ); if_setcapabilitiesbit(ifp, IFCAP_HWCSUM | IFCAP_HWCSUM_IPV6 | IFCAP_TSO | IFCAP_LRO | IFCAP_JUMBO_MTU, 0); if_setcapenable(ifp, if_getcapabilities(ifp)); adapter->id_number = g_adapters_count; if (adapter->board_type == ALPINE_INTEGRATED) { dev_id = pci_get_device(adapter->dev); rev_id = pci_get_revid(adapter->dev); } else { al_eth_fpga_read_pci_config(adapter->internal_pcie_base, PCIR_DEVICE, &dev_id); al_eth_fpga_read_pci_config(adapter->internal_pcie_base, PCIR_REVID, &rev_id); } adapter->dev_id = dev_id; adapter->rev_id = rev_id; /* set default ring sizes */ adapter->tx_ring_count = AL_ETH_DEFAULT_TX_SW_DESCS; adapter->tx_descs_count = AL_ETH_DEFAULT_TX_HW_DESCS; adapter->rx_ring_count = AL_ETH_DEFAULT_RX_DESCS; adapter->rx_descs_count = AL_ETH_DEFAULT_RX_DESCS; adapter->num_tx_queues = AL_ETH_NUM_QUEUES; adapter->num_rx_queues = AL_ETH_NUM_QUEUES; adapter->small_copy_len = AL_ETH_DEFAULT_SMALL_PACKET_LEN; adapter->link_poll_interval = AL_ETH_DEFAULT_LINK_POLL_INTERVAL; adapter->max_rx_buff_alloc_size = AL_ETH_DEFAULT_MAX_RX_BUFF_ALLOC_SIZE; al_eth_req_rx_buff_size(adapter, if_getmtu(adapter->netdev)); adapter->link_config.force_1000_base_x = AL_ETH_DEFAULT_FORCE_1000_BASEX; err = al_eth_board_params_init(adapter); if (err != 0) goto err; if (adapter->mac_mode == AL_ETH_MAC_MODE_10GbE_Serial) { ifmedia_init(&adapter->media, IFM_IMASK, al_media_update, al_media_status); ifmedia_add(&adapter->media, IFM_ETHER | IFM_1000_LX, 0, NULL); ifmedia_add(&adapter->media, IFM_ETHER | IFM_10G_LR, 0, NULL); ifmedia_add(&adapter->media, IFM_ETHER | IFM_AUTO, 0, NULL); ifmedia_set(&adapter->media, IFM_ETHER | IFM_AUTO); } al_eth_function_reset(adapter); err = al_eth_hw_init_adapter(adapter); if (err != 0) goto err; al_eth_init_rings(adapter); g_adapters_count++; al_eth_lm_config(adapter); mtx_init(&adapter->stats_mtx, "AlStatsMtx", NULL, MTX_DEF); mtx_init(&adapter->wd_mtx, "AlWdMtx", NULL, MTX_DEF); callout_init_mtx(&adapter->stats_callout, &adapter->stats_mtx, 0); callout_init_mtx(&adapter->wd_callout, &adapter->wd_mtx, 0); ether_ifattach(ifp, adapter->mac_addr); if_setmtu(ifp, AL_DEFAULT_MTU); if (adapter->mac_mode == AL_ETH_MAC_MODE_RGMII) { al_eth_hw_init(adapter); /* Attach PHY(s) */ err = mii_attach(adapter->dev, &adapter->miibus, adapter->netdev, al_media_update, al_media_status, BMSR_DEFCAPMASK, 0, MII_OFFSET_ANY, 0); if (err != 0) { device_printf(adapter->dev, "attaching PHYs failed\n"); return (err); } adapter->mii = device_get_softc(adapter->miibus); } return (err); err: bus_release_resource(dev, SYS_RES_MEMORY, bar_ec, adapter->ec_res); err_res_ec: bus_release_resource(dev, SYS_RES_MEMORY, bar_mac, adapter->mac_res); err_res_mac: bus_release_resource(dev, SYS_RES_MEMORY, bar_udma, adapter->udma_res); err_res_dma: return (err); } static int al_detach(device_t dev) { struct al_eth_adapter *adapter; adapter = device_get_softc(dev); ether_ifdetach(adapter->netdev); mtx_destroy(&adapter->stats_mtx); mtx_destroy(&adapter->wd_mtx); al_eth_down(adapter); bus_release_resource(dev, SYS_RES_IRQ, 0, adapter->irq_res); bus_release_resource(dev, SYS_RES_MEMORY, 0, adapter->ec_res); bus_release_resource(dev, SYS_RES_MEMORY, 0, adapter->mac_res); bus_release_resource(dev, SYS_RES_MEMORY, 0, adapter->udma_res); return (0); } int al_eth_fpga_read_pci_config(void *handle, int where, uint32_t *val) { /* handle is the base address of the adapter */ *val = al_reg_read32((void*)((u_long)handle + where)); return (0); } int al_eth_fpga_write_pci_config(void *handle, int where, uint32_t val) { /* handle is the base address of the adapter */ al_reg_write32((void*)((u_long)handle + where), val); return (0); } int al_eth_read_pci_config(void *handle, int where, uint32_t *val) { /* handle is a pci_dev */ *val = pci_read_config((device_t)handle, where, sizeof(*val)); return (0); } int al_eth_write_pci_config(void *handle, int where, uint32_t val) { /* handle is a pci_dev */ pci_write_config((device_t)handle, where, val, sizeof(val)); return (0); } void al_eth_irq_config(uint32_t *offset, uint32_t value) { al_reg_write32_relaxed(offset, value); } void al_eth_forward_int_config(uint32_t *offset, uint32_t value) { al_reg_write32(offset, value); } static void al_eth_serdes_init(struct al_eth_adapter *adapter) { void __iomem *serdes_base; adapter->serdes_init = false; serdes_base = alpine_serdes_resource_get(adapter->serdes_grp); if (serdes_base == NULL) { device_printf(adapter->dev, "serdes_base get failed!\n"); return; } serdes_base = al_bus_dma_to_va(serdes_tag, serdes_base); al_serdes_handle_grp_init(serdes_base, adapter->serdes_grp, &adapter->serdes_obj); adapter->serdes_init = true; } static void al_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error) { bus_addr_t *paddr; paddr = arg; *paddr = segs->ds_addr; } static int al_dma_alloc_coherent(device_t dev, bus_dma_tag_t *tag, bus_dmamap_t *map, bus_addr_t *baddr, void **vaddr, uint32_t size) { int ret; uint32_t maxsize = ((size - 1)/PAGE_SIZE + 1) * PAGE_SIZE; ret = bus_dma_tag_create(bus_get_dma_tag(dev), 8, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, maxsize, 1, maxsize, BUS_DMA_COHERENT, NULL, NULL, tag); if (ret != 0) { device_printf(dev, "failed to create bus tag, ret = %d\n", ret); return (ret); } ret = bus_dmamem_alloc(*tag, vaddr, BUS_DMA_COHERENT | BUS_DMA_ZERO, map); if (ret != 0) { device_printf(dev, "failed to allocate dmamem, ret = %d\n", ret); return (ret); } ret = bus_dmamap_load(*tag, *map, *vaddr, size, al_dma_map_addr, baddr, 0); if (ret != 0) { device_printf(dev, "failed to allocate bus_dmamap_load, ret = %d\n", ret); return (ret); } return (0); } static void al_dma_free_coherent(bus_dma_tag_t tag, bus_dmamap_t map, void *vaddr) { bus_dmamap_unload(tag, map); bus_dmamem_free(tag, vaddr, map); bus_dma_tag_destroy(tag); } static void al_eth_mac_table_unicast_add(struct al_eth_adapter *adapter, uint8_t idx, uint8_t udma_mask) { struct al_eth_fwd_mac_table_entry entry = { { 0 } }; memcpy(entry.addr, adapter->mac_addr, sizeof(adapter->mac_addr)); memset(entry.mask, 0xff, sizeof(entry.mask)); entry.rx_valid = true; entry.tx_valid = false; entry.udma_mask = udma_mask; entry.filter = false; device_printf_dbg(adapter->dev, "%s: [%d]: addr "MAC_ADDR_STR" mask "MAC_ADDR_STR"\n", __func__, idx, MAC_ADDR(entry.addr), MAC_ADDR(entry.mask)); al_eth_fwd_mac_table_set(&adapter->hal_adapter, idx, &entry); } static void al_eth_mac_table_all_multicast_add(struct al_eth_adapter *adapter, uint8_t idx, uint8_t udma_mask) { struct al_eth_fwd_mac_table_entry entry = { { 0 } }; memset(entry.addr, 0x00, sizeof(entry.addr)); memset(entry.mask, 0x00, sizeof(entry.mask)); entry.mask[0] |= 1; entry.addr[0] |= 1; entry.rx_valid = true; entry.tx_valid = false; entry.udma_mask = udma_mask; entry.filter = false; device_printf_dbg(adapter->dev, "%s: [%d]: addr "MAC_ADDR_STR" mask "MAC_ADDR_STR"\n", __func__, idx, MAC_ADDR(entry.addr), MAC_ADDR(entry.mask)); al_eth_fwd_mac_table_set(&adapter->hal_adapter, idx, &entry); } static void al_eth_mac_table_broadcast_add(struct al_eth_adapter *adapter, uint8_t idx, uint8_t udma_mask) { struct al_eth_fwd_mac_table_entry entry = { { 0 } }; memset(entry.addr, 0xff, sizeof(entry.addr)); memset(entry.mask, 0xff, sizeof(entry.mask)); entry.rx_valid = true; entry.tx_valid = false; entry.udma_mask = udma_mask; entry.filter = false; device_printf_dbg(adapter->dev, "%s: [%d]: addr "MAC_ADDR_STR" mask "MAC_ADDR_STR"\n", __func__, idx, MAC_ADDR(entry.addr), MAC_ADDR(entry.mask)); al_eth_fwd_mac_table_set(&adapter->hal_adapter, idx, &entry); } static void al_eth_mac_table_promiscuous_set(struct al_eth_adapter *adapter, bool promiscuous) { struct al_eth_fwd_mac_table_entry entry = { { 0 } }; memset(entry.addr, 0x00, sizeof(entry.addr)); memset(entry.mask, 0x00, sizeof(entry.mask)); entry.rx_valid = true; entry.tx_valid = false; entry.udma_mask = (promiscuous) ? 1 : 0; entry.filter = (promiscuous) ? false : true; device_printf_dbg(adapter->dev, "%s: %s promiscuous mode\n", __func__, (promiscuous) ? "enter" : "exit"); al_eth_fwd_mac_table_set(&adapter->hal_adapter, AL_ETH_MAC_TABLE_DROP_IDX, &entry); } static void al_eth_set_thash_table_entry(struct al_eth_adapter *adapter, uint8_t idx, uint8_t udma, uint32_t queue) { if (udma != 0) panic("only UDMA0 is supporter"); if (queue >= AL_ETH_NUM_QUEUES) panic("invalid queue number"); al_eth_thash_table_set(&adapter->hal_adapter, idx, udma, queue); } /* init FSM, no tunneling supported yet, if packet is tcp/udp over ipv4/ipv6, use 4 tuple hash */ static void al_eth_fsm_table_init(struct al_eth_adapter *adapter) { uint32_t val; int i; for (i = 0; i < AL_ETH_RX_FSM_TABLE_SIZE; i++) { uint8_t outer_type = AL_ETH_FSM_ENTRY_OUTER(i); switch (outer_type) { case AL_ETH_FSM_ENTRY_IPV4_TCP: case AL_ETH_FSM_ENTRY_IPV4_UDP: case AL_ETH_FSM_ENTRY_IPV6_TCP: case AL_ETH_FSM_ENTRY_IPV6_UDP: val = AL_ETH_FSM_DATA_OUTER_4_TUPLE | AL_ETH_FSM_DATA_HASH_SEL; break; case AL_ETH_FSM_ENTRY_IPV6_NO_UDP_TCP: case AL_ETH_FSM_ENTRY_IPV4_NO_UDP_TCP: val = AL_ETH_FSM_DATA_OUTER_2_TUPLE | AL_ETH_FSM_DATA_HASH_SEL; break; default: val = AL_ETH_FSM_DATA_DEFAULT_Q | AL_ETH_FSM_DATA_DEFAULT_UDMA; } al_eth_fsm_table_set(&adapter->hal_adapter, i, val); } } static void al_eth_mac_table_entry_clear(struct al_eth_adapter *adapter, uint8_t idx) { struct al_eth_fwd_mac_table_entry entry = { { 0 } }; device_printf_dbg(adapter->dev, "%s: clear entry %d\n", __func__, idx); al_eth_fwd_mac_table_set(&adapter->hal_adapter, idx, &entry); } static int al_eth_hw_init_adapter(struct al_eth_adapter *adapter) { struct al_eth_adapter_params *params = &adapter->eth_hal_params; int rc; /* params->dev_id = adapter->dev_id; */ params->rev_id = adapter->rev_id; params->udma_id = 0; params->enable_rx_parser = 1; /* enable rx epe parser*/ params->udma_regs_base = adapter->udma_base; /* UDMA register base address */ params->ec_regs_base = adapter->ec_base; /* Ethernet controller registers base address */ params->mac_regs_base = adapter->mac_base; /* Ethernet MAC registers base address */ params->name = adapter->name; params->serdes_lane = adapter->serdes_lane; rc = al_eth_adapter_init(&adapter->hal_adapter, params); if (rc != 0) device_printf(adapter->dev, "%s failed at hal init!\n", __func__); if ((adapter->board_type == ALPINE_NIC) || (adapter->board_type == ALPINE_FPGA_NIC)) { /* in pcie NIC mode, force eth UDMA to access PCIE0 using the vmid */ struct al_udma_gen_tgtid_conf conf; int i; for (i = 0; i < DMA_MAX_Q; i++) { conf.tx_q_conf[i].queue_en = AL_TRUE; conf.tx_q_conf[i].desc_en = AL_FALSE; conf.tx_q_conf[i].tgtid = 0x100; /* for access from PCIE0 */ conf.rx_q_conf[i].queue_en = AL_TRUE; conf.rx_q_conf[i].desc_en = AL_FALSE; conf.rx_q_conf[i].tgtid = 0x100; /* for access from PCIE0 */ } al_udma_gen_tgtid_conf_set(adapter->udma_base, &conf); } return (rc); } static void al_eth_lm_config(struct al_eth_adapter *adapter) { struct al_eth_lm_init_params params = {0}; params.adapter = &adapter->hal_adapter; params.serdes_obj = &adapter->serdes_obj; params.lane = adapter->serdes_lane; params.sfp_detection = adapter->sfp_detection_needed; if (adapter->sfp_detection_needed == true) { params.sfp_bus_id = adapter->i2c_adapter_id; params.sfp_i2c_addr = SFP_I2C_ADDR; } if (adapter->sfp_detection_needed == false) { switch (adapter->mac_mode) { case AL_ETH_MAC_MODE_10GbE_Serial: if ((adapter->lt_en != 0) && (adapter->an_en != 0)) params.default_mode = AL_ETH_LM_MODE_10G_DA; else params.default_mode = AL_ETH_LM_MODE_10G_OPTIC; break; case AL_ETH_MAC_MODE_SGMII: params.default_mode = AL_ETH_LM_MODE_1G; break; default: params.default_mode = AL_ETH_LM_MODE_10G_DA; } } else params.default_mode = AL_ETH_LM_MODE_10G_DA; params.link_training = adapter->lt_en; params.rx_equal = true; params.static_values = !adapter->dont_override_serdes; params.i2c_context = adapter; params.kr_fec_enable = false; params.retimer_exist = adapter->retimer.exist; params.retimer_bus_id = adapter->retimer.bus_id; params.retimer_i2c_addr = adapter->retimer.i2c_addr; params.retimer_channel = adapter->retimer.channel; al_eth_lm_init(&adapter->lm_context, ¶ms); } static int al_eth_board_params_init(struct al_eth_adapter *adapter) { if (adapter->board_type == ALPINE_NIC) { adapter->mac_mode = AL_ETH_MAC_MODE_10GbE_Serial; adapter->sfp_detection_needed = false; adapter->phy_exist = false; adapter->an_en = false; adapter->lt_en = false; adapter->ref_clk_freq = AL_ETH_REF_FREQ_375_MHZ; adapter->mdio_freq = AL_ETH_DEFAULT_MDIO_FREQ_KHZ; } else if (adapter->board_type == ALPINE_FPGA_NIC) { adapter->mac_mode = AL_ETH_MAC_MODE_SGMII; adapter->sfp_detection_needed = false; adapter->phy_exist = false; adapter->an_en = false; adapter->lt_en = false; adapter->ref_clk_freq = AL_ETH_REF_FREQ_375_MHZ; adapter->mdio_freq = AL_ETH_DEFAULT_MDIO_FREQ_KHZ; } else { struct al_eth_board_params params; int rc; adapter->auto_speed = false; rc = al_eth_board_params_get(adapter->mac_base, ¶ms); if (rc != 0) { device_printf(adapter->dev, "board info not available\n"); return (-1); } adapter->phy_exist = params.phy_exist == true; adapter->phy_addr = params.phy_mdio_addr; adapter->an_en = params.autoneg_enable; adapter->lt_en = params.kr_lt_enable; adapter->serdes_grp = params.serdes_grp; adapter->serdes_lane = params.serdes_lane; adapter->sfp_detection_needed = params.sfp_plus_module_exist; adapter->i2c_adapter_id = params.i2c_adapter_id; adapter->ref_clk_freq = params.ref_clk_freq; adapter->dont_override_serdes = params.dont_override_serdes; adapter->link_config.active_duplex = !params.half_duplex; adapter->link_config.autoneg = !params.an_disable; adapter->link_config.force_1000_base_x = params.force_1000_base_x; adapter->retimer.exist = params.retimer_exist; adapter->retimer.bus_id = params.retimer_bus_id; adapter->retimer.i2c_addr = params.retimer_i2c_addr; adapter->retimer.channel = params.retimer_channel; switch (params.speed) { default: device_printf(adapter->dev, "%s: invalid speed (%d)\n", __func__, params.speed); case AL_ETH_BOARD_1G_SPEED_1000M: adapter->link_config.active_speed = 1000; break; case AL_ETH_BOARD_1G_SPEED_100M: adapter->link_config.active_speed = 100; break; case AL_ETH_BOARD_1G_SPEED_10M: adapter->link_config.active_speed = 10; break; } switch (params.mdio_freq) { default: device_printf(adapter->dev, "%s: invalid mdio freq (%d)\n", __func__, params.mdio_freq); case AL_ETH_BOARD_MDIO_FREQ_2_5_MHZ: adapter->mdio_freq = AL_ETH_DEFAULT_MDIO_FREQ_KHZ; break; case AL_ETH_BOARD_MDIO_FREQ_1_MHZ: adapter->mdio_freq = AL_ETH_MDIO_FREQ_1000_KHZ; break; } switch (params.media_type) { case AL_ETH_BOARD_MEDIA_TYPE_RGMII: if (params.sfp_plus_module_exist == true) /* Backward compatibility */ adapter->mac_mode = AL_ETH_MAC_MODE_SGMII; else adapter->mac_mode = AL_ETH_MAC_MODE_RGMII; adapter->use_lm = false; break; case AL_ETH_BOARD_MEDIA_TYPE_SGMII: adapter->mac_mode = AL_ETH_MAC_MODE_SGMII; adapter->use_lm = true; break; case AL_ETH_BOARD_MEDIA_TYPE_10GBASE_SR: adapter->mac_mode = AL_ETH_MAC_MODE_10GbE_Serial; adapter->use_lm = true; break; case AL_ETH_BOARD_MEDIA_TYPE_AUTO_DETECT: adapter->sfp_detection_needed = true; adapter->auto_speed = false; adapter->use_lm = true; break; case AL_ETH_BOARD_MEDIA_TYPE_AUTO_DETECT_AUTO_SPEED: adapter->sfp_detection_needed = true; adapter->auto_speed = true; adapter->mac_mode_set = false; adapter->use_lm = true; adapter->mac_mode = AL_ETH_MAC_MODE_10GbE_Serial; break; default: device_printf(adapter->dev, "%s: unsupported media type %d\n", __func__, params.media_type); return (-1); } device_printf(adapter->dev, "Board info: phy exist %s. phy addr %d. mdio freq %u Khz. " "SFP connected %s. media %d\n", params.phy_exist ? "Yes" : "No", params.phy_mdio_addr, adapter->mdio_freq, params.sfp_plus_module_exist ? "Yes" : "No", params.media_type); } al_eth_mac_addr_read(adapter->ec_base, 0, adapter->mac_addr); return (0); } static int al_eth_function_reset(struct al_eth_adapter *adapter) { struct al_eth_board_params params; int rc; /* save board params so we restore it after reset */ al_eth_board_params_get(adapter->mac_base, ¶ms); al_eth_mac_addr_read(adapter->ec_base, 0, adapter->mac_addr); if (adapter->board_type == ALPINE_INTEGRATED) rc = al_eth_flr_rmn(&al_eth_read_pci_config, &al_eth_write_pci_config, adapter->dev, adapter->mac_base); else rc = al_eth_flr_rmn(&al_eth_fpga_read_pci_config, &al_eth_fpga_write_pci_config, adapter->internal_pcie_base, adapter->mac_base); /* restore params */ al_eth_board_params_set(adapter->mac_base, ¶ms); al_eth_mac_addr_store(adapter->ec_base, 0, adapter->mac_addr); return (rc); } static void al_eth_init_rings(struct al_eth_adapter *adapter) { int i; for (i = 0; i < adapter->num_tx_queues; i++) { struct al_eth_ring *ring = &adapter->tx_ring[i]; ring->ring_id = i; ring->dev = adapter->dev; ring->adapter = adapter; ring->netdev = adapter->netdev; al_udma_q_handle_get(&adapter->hal_adapter.tx_udma, i, &ring->dma_q); ring->sw_count = adapter->tx_ring_count; ring->hw_count = adapter->tx_descs_count; ring->unmask_reg_offset = al_udma_iofic_unmask_offset_get((struct unit_regs *)adapter->udma_base, AL_UDMA_IOFIC_LEVEL_PRIMARY, AL_INT_GROUP_C); ring->unmask_val = ~(1 << i); } for (i = 0; i < adapter->num_rx_queues; i++) { struct al_eth_ring *ring = &adapter->rx_ring[i]; ring->ring_id = i; ring->dev = adapter->dev; ring->adapter = adapter; ring->netdev = adapter->netdev; al_udma_q_handle_get(&adapter->hal_adapter.rx_udma, i, &ring->dma_q); ring->sw_count = adapter->rx_ring_count; ring->hw_count = adapter->rx_descs_count; ring->unmask_reg_offset = al_udma_iofic_unmask_offset_get( (struct unit_regs *)adapter->udma_base, AL_UDMA_IOFIC_LEVEL_PRIMARY, AL_INT_GROUP_B); ring->unmask_val = ~(1 << i); } } static void al_init_locked(void *arg) { struct al_eth_adapter *adapter = arg; if_t ifp = adapter->netdev; int rc = 0; al_eth_down(adapter); rc = al_eth_up(adapter); if_setdrvflagbits(ifp, 0, IFF_DRV_OACTIVE); if (rc == 0) if_setdrvflagbits(ifp, IFF_DRV_RUNNING, 0); } static void al_init(void *arg) { struct al_eth_adapter *adapter = arg; al_init_locked(adapter); } static inline int al_eth_alloc_rx_buf(struct al_eth_adapter *adapter, struct al_eth_ring *rx_ring, struct al_eth_rx_buffer *rx_info) { struct al_buf *al_buf; bus_dma_segment_t segs[2]; int error; int nsegs; if (rx_info->m != NULL) return (0); rx_info->data_size = adapter->rx_mbuf_sz; AL_RX_LOCK(adapter); /* Get mbuf using UMA allocator */ rx_info->m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, rx_info->data_size); AL_RX_UNLOCK(adapter); if (rx_info->m == NULL) return (ENOMEM); rx_info->m->m_pkthdr.len = rx_info->m->m_len = adapter->rx_mbuf_sz; /* Map packets for DMA */ error = bus_dmamap_load_mbuf_sg(rx_ring->dma_buf_tag, rx_info->dma_map, rx_info->m, segs, &nsegs, BUS_DMA_NOWAIT); if (__predict_false(error)) { device_printf(rx_ring->dev, "failed to map mbuf, error = %d\n", error); m_freem(rx_info->m); rx_info->m = NULL; return (EFAULT); } al_buf = &rx_info->al_buf; al_buf->addr = segs[0].ds_addr + AL_IP_ALIGNMENT_OFFSET; al_buf->len = rx_info->data_size - AL_IP_ALIGNMENT_OFFSET; return (0); } static int al_eth_refill_rx_bufs(struct al_eth_adapter *adapter, unsigned int qid, unsigned int num) { struct al_eth_ring *rx_ring = &adapter->rx_ring[qid]; uint16_t next_to_use; unsigned int i; next_to_use = rx_ring->next_to_use; for (i = 0; i < num; i++) { int rc; struct al_eth_rx_buffer *rx_info = &rx_ring->rx_buffer_info[next_to_use]; if (__predict_false(al_eth_alloc_rx_buf(adapter, rx_ring, rx_info) < 0)) { device_printf(adapter->dev, "failed to alloc buffer for rx queue %d\n", qid); break; } rc = al_eth_rx_buffer_add(rx_ring->dma_q, &rx_info->al_buf, AL_ETH_RX_FLAGS_INT, NULL); if (__predict_false(rc)) { device_printf(adapter->dev, "failed to add buffer for rx queue %d\n", qid); break; } next_to_use = AL_ETH_RX_RING_IDX_NEXT(rx_ring, next_to_use); } if (__predict_false(i < num)) device_printf(adapter->dev, "refilled rx queue %d with %d pages only - available %d\n", qid, i, al_udma_available_get(rx_ring->dma_q)); if (__predict_true(i)) al_eth_rx_buffer_action(rx_ring->dma_q, i); rx_ring->next_to_use = next_to_use; return (i); } /* * al_eth_refill_all_rx_bufs - allocate all queues Rx buffers * @adapter: board private structure */ static void al_eth_refill_all_rx_bufs(struct al_eth_adapter *adapter) { int i; for (i = 0; i < adapter->num_rx_queues; i++) al_eth_refill_rx_bufs(adapter, i, AL_ETH_DEFAULT_RX_DESCS - 1); } static void al_eth_tx_do_cleanup(struct al_eth_ring *tx_ring) { unsigned int total_done; uint16_t next_to_clean; int qid = tx_ring->ring_id; total_done = al_eth_comp_tx_get(tx_ring->dma_q); device_printf_dbg(tx_ring->dev, "tx_poll: q %d total completed descs %x\n", qid, total_done); next_to_clean = tx_ring->next_to_clean; while (total_done != 0) { struct al_eth_tx_buffer *tx_info; struct mbuf *mbuf; tx_info = &tx_ring->tx_buffer_info[next_to_clean]; /* stop if not all descriptors of the packet are completed */ if (tx_info->tx_descs > total_done) break; mbuf = tx_info->m; tx_info->m = NULL; device_printf_dbg(tx_ring->dev, "tx_poll: q %d mbuf %p completed\n", qid, mbuf); /* map is no longer required */ bus_dmamap_unload(tx_ring->dma_buf_tag, tx_info->dma_map); m_freem(mbuf); total_done -= tx_info->tx_descs; next_to_clean = AL_ETH_TX_RING_IDX_NEXT(tx_ring, next_to_clean); } tx_ring->next_to_clean = next_to_clean; device_printf_dbg(tx_ring->dev, "tx_poll: q %d done next to clean %x\n", qid, next_to_clean); /* * need to make the rings circular update visible to * al_eth_start_xmit() before checking for netif_queue_stopped(). */ al_smp_data_memory_barrier(); } static void al_eth_tx_csum(struct al_eth_ring *tx_ring, struct al_eth_tx_buffer *tx_info, struct al_eth_pkt *hal_pkt, struct mbuf *m) { uint32_t mss = m->m_pkthdr.tso_segsz; struct ether_vlan_header *eh; uint16_t etype; #ifdef INET struct ip *ip; #endif #ifdef INET6 struct ip6_hdr *ip6; #endif struct tcphdr *th = NULL; int ehdrlen, ip_hlen = 0; uint8_t ipproto = 0; uint32_t offload = 0; if (mss != 0) offload = 1; if ((m->m_pkthdr.csum_flags & CSUM_TSO) != 0) offload = 1; if ((m->m_pkthdr.csum_flags & CSUM_OFFLOAD) != 0) offload = 1; if (offload != 0) { struct al_eth_meta_data *meta = &tx_ring->hal_meta; if (mss != 0) hal_pkt->flags |= (AL_ETH_TX_FLAGS_TSO | AL_ETH_TX_FLAGS_L4_CSUM); else hal_pkt->flags |= (AL_ETH_TX_FLAGS_L4_CSUM | AL_ETH_TX_FLAGS_L4_PARTIAL_CSUM); /* * Determine where frame payload starts. * Jump over vlan headers if already present, * helpful for QinQ too. */ eh = mtod(m, struct ether_vlan_header *); if (eh->evl_encap_proto == htons(ETHERTYPE_VLAN)) { etype = ntohs(eh->evl_proto); ehdrlen = ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN; } else { etype = ntohs(eh->evl_encap_proto); ehdrlen = ETHER_HDR_LEN; } switch (etype) { #ifdef INET case ETHERTYPE_IP: ip = (struct ip *)(m->m_data + ehdrlen); ip_hlen = ip->ip_hl << 2; ipproto = ip->ip_p; hal_pkt->l3_proto_idx = AL_ETH_PROTO_ID_IPv4; th = (struct tcphdr *)((caddr_t)ip + ip_hlen); if (mss != 0) hal_pkt->flags |= AL_ETH_TX_FLAGS_IPV4_L3_CSUM; if (ipproto == IPPROTO_TCP) hal_pkt->l4_proto_idx = AL_ETH_PROTO_ID_TCP; else hal_pkt->l4_proto_idx = AL_ETH_PROTO_ID_UDP; break; #endif /* INET */ #ifdef INET6 case ETHERTYPE_IPV6: ip6 = (struct ip6_hdr *)(m->m_data + ehdrlen); hal_pkt->l3_proto_idx = AL_ETH_PROTO_ID_IPv6; ip_hlen = sizeof(struct ip6_hdr); th = (struct tcphdr *)((caddr_t)ip6 + ip_hlen); ipproto = ip6->ip6_nxt; if (ipproto == IPPROTO_TCP) hal_pkt->l4_proto_idx = AL_ETH_PROTO_ID_TCP; else hal_pkt->l4_proto_idx = AL_ETH_PROTO_ID_UDP; break; #endif /* INET6 */ default: break; } meta->words_valid = 4; meta->l3_header_len = ip_hlen; meta->l3_header_offset = ehdrlen; if (th != NULL) meta->l4_header_len = th->th_off; /* this param needed only for TSO */ meta->mss_idx_sel = 0; /* check how to select MSS */ meta->mss_val = mss; hal_pkt->meta = meta; } else hal_pkt->meta = NULL; } #define XMIT_QUEUE_TIMEOUT 100 static void al_eth_xmit_mbuf(struct al_eth_ring *tx_ring, struct mbuf *m) { struct al_eth_tx_buffer *tx_info; int error; int nsegs, a; uint16_t next_to_use; bus_dma_segment_t segs[AL_ETH_PKT_MAX_BUFS + 1]; struct al_eth_pkt *hal_pkt; struct al_buf *al_buf; bool remap; /* Check if queue is ready */ if (unlikely(tx_ring->stall) != 0) { for (a = 0; a < XMIT_QUEUE_TIMEOUT; a++) { if (al_udma_available_get(tx_ring->dma_q) >= (AL_ETH_DEFAULT_TX_HW_DESCS - AL_ETH_TX_WAKEUP_THRESH)) { tx_ring->stall = 0; break; } pause("stall", 1); } if (a == XMIT_QUEUE_TIMEOUT) { device_printf(tx_ring->dev, "timeout waiting for queue %d ready!\n", tx_ring->ring_id); return; } else { device_printf_dbg(tx_ring->dev, "queue %d is ready!\n", tx_ring->ring_id); } } next_to_use = tx_ring->next_to_use; tx_info = &tx_ring->tx_buffer_info[next_to_use]; tx_info->m = m; hal_pkt = &tx_info->hal_pkt; if (m == NULL) { device_printf(tx_ring->dev, "mbuf is NULL\n"); return; } remap = true; /* Map packets for DMA */ retry: error = bus_dmamap_load_mbuf_sg(tx_ring->dma_buf_tag, tx_info->dma_map, m, segs, &nsegs, BUS_DMA_NOWAIT); if (__predict_false(error)) { struct mbuf *m_new; if (error == EFBIG) { /* Try it again? - one try */ if (remap == true) { remap = false; m_new = m_defrag(m, M_NOWAIT); if (m_new == NULL) { device_printf(tx_ring->dev, "failed to defrag mbuf\n"); goto exit; } m = m_new; goto retry; } else { device_printf(tx_ring->dev, "failed to map mbuf, error %d\n", error); goto exit; } } else { device_printf(tx_ring->dev, "failed to map mbuf, error %d\n", error); goto exit; } } /* set flags and meta data */ hal_pkt->flags = AL_ETH_TX_FLAGS_INT; al_eth_tx_csum(tx_ring, tx_info, hal_pkt, m); al_buf = hal_pkt->bufs; for (a = 0; a < nsegs; a++) { al_buf->addr = segs[a].ds_addr; al_buf->len = segs[a].ds_len; al_buf++; } hal_pkt->num_of_bufs = nsegs; /* prepare the packet's descriptors to dma engine */ tx_info->tx_descs = al_eth_tx_pkt_prepare(tx_ring->dma_q, hal_pkt); if (tx_info->tx_descs == 0) goto exit; /* * stop the queue when no more space available, the packet can have up * to AL_ETH_PKT_MAX_BUFS + 1 buffers and a meta descriptor */ if (unlikely(al_udma_available_get(tx_ring->dma_q) < (AL_ETH_PKT_MAX_BUFS + 2))) { tx_ring->stall = 1; device_printf_dbg(tx_ring->dev, "stall, stopping queue %d...\n", tx_ring->ring_id); al_data_memory_barrier(); } tx_ring->next_to_use = AL_ETH_TX_RING_IDX_NEXT(tx_ring, next_to_use); /* trigger the dma engine */ al_eth_tx_dma_action(tx_ring->dma_q, tx_info->tx_descs); return; exit: m_freem(m); } static void al_eth_tx_cmpl_work(void *arg, int pending) { struct al_eth_ring *tx_ring = arg; if (napi != 0) { tx_ring->cmpl_is_running = 1; al_data_memory_barrier(); } al_eth_tx_do_cleanup(tx_ring); if (napi != 0) { tx_ring->cmpl_is_running = 0; al_data_memory_barrier(); } /* all work done, enable IRQs */ al_eth_irq_config(tx_ring->unmask_reg_offset, tx_ring->unmask_val); } static int al_eth_tx_cmlp_irq_filter(void *arg) { struct al_eth_ring *tx_ring = arg; /* Interrupt should be auto-masked upon arrival */ device_printf_dbg(tx_ring->dev, "%s for ring ID = %d\n", __func__, tx_ring->ring_id); /* * For napi, if work is not running, schedule it. Always schedule * for casual (non-napi) packet handling. */ if ((napi == 0) || (napi && tx_ring->cmpl_is_running == 0)) taskqueue_enqueue(tx_ring->cmpl_tq, &tx_ring->cmpl_task); /* Do not run bottom half */ return (FILTER_HANDLED); } static int al_eth_rx_recv_irq_filter(void *arg) { struct al_eth_ring *rx_ring = arg; /* Interrupt should be auto-masked upon arrival */ device_printf_dbg(rx_ring->dev, "%s for ring ID = %d\n", __func__, rx_ring->ring_id); /* * For napi, if work is not running, schedule it. Always schedule * for casual (non-napi) packet handling. */ if ((napi == 0) || (napi && rx_ring->enqueue_is_running == 0)) taskqueue_enqueue(rx_ring->enqueue_tq, &rx_ring->enqueue_task); /* Do not run bottom half */ return (FILTER_HANDLED); } /* * al_eth_rx_checksum - indicate in mbuf if hw indicated a good cksum * @adapter: structure containing adapter specific data * @hal_pkt: HAL structure for the packet * @mbuf: mbuf currently being received and modified */ static inline void al_eth_rx_checksum(struct al_eth_adapter *adapter, struct al_eth_pkt *hal_pkt, struct mbuf *mbuf) { /* if IPv4 and error */ if (unlikely((if_getcapenable(adapter->netdev) & IFCAP_RXCSUM) && (hal_pkt->l3_proto_idx == AL_ETH_PROTO_ID_IPv4) && (hal_pkt->flags & AL_ETH_RX_FLAGS_L3_CSUM_ERR))) { device_printf(adapter->dev,"rx ipv4 header checksum error\n"); return; } /* if IPv6 and error */ if (unlikely((if_getcapenable(adapter->netdev) & IFCAP_RXCSUM_IPV6) && (hal_pkt->l3_proto_idx == AL_ETH_PROTO_ID_IPv6) && (hal_pkt->flags & AL_ETH_RX_FLAGS_L3_CSUM_ERR))) { device_printf(adapter->dev,"rx ipv6 header checksum error\n"); return; } /* if TCP/UDP */ if (likely((hal_pkt->l4_proto_idx == AL_ETH_PROTO_ID_TCP) || (hal_pkt->l4_proto_idx == AL_ETH_PROTO_ID_UDP))) { if (unlikely(hal_pkt->flags & AL_ETH_RX_FLAGS_L4_CSUM_ERR)) { device_printf_dbg(adapter->dev, "rx L4 checksum error\n"); /* TCP/UDP checksum error */ mbuf->m_pkthdr.csum_flags = 0; } else { device_printf_dbg(adapter->dev, "rx checksum correct\n"); /* IP Checksum Good */ mbuf->m_pkthdr.csum_flags = CSUM_IP_CHECKED; mbuf->m_pkthdr.csum_flags |= CSUM_IP_VALID; } } } static struct mbuf* al_eth_rx_mbuf(struct al_eth_adapter *adapter, struct al_eth_ring *rx_ring, struct al_eth_pkt *hal_pkt, unsigned int descs, uint16_t *next_to_clean) { struct mbuf *mbuf; struct al_eth_rx_buffer *rx_info = &rx_ring->rx_buffer_info[*next_to_clean]; unsigned int len; len = hal_pkt->bufs[0].len; device_printf_dbg(adapter->dev, "rx_info %p data %p\n", rx_info, rx_info->m); if (rx_info->m == NULL) { *next_to_clean = AL_ETH_RX_RING_IDX_NEXT(rx_ring, *next_to_clean); return (NULL); } mbuf = rx_info->m; mbuf->m_pkthdr.len = len; mbuf->m_len = len; mbuf->m_pkthdr.rcvif = rx_ring->netdev; mbuf->m_flags |= M_PKTHDR; if (len <= adapter->small_copy_len) { struct mbuf *smbuf; device_printf_dbg(adapter->dev, "rx small packet. len %d\n", len); AL_RX_LOCK(adapter); smbuf = m_gethdr(M_NOWAIT, MT_DATA); AL_RX_UNLOCK(adapter); if (__predict_false(smbuf == NULL)) { device_printf(adapter->dev, "smbuf is NULL\n"); return (NULL); } smbuf->m_data = smbuf->m_data + AL_IP_ALIGNMENT_OFFSET; memcpy(smbuf->m_data, mbuf->m_data + AL_IP_ALIGNMENT_OFFSET, len); smbuf->m_len = len; smbuf->m_pkthdr.rcvif = rx_ring->netdev; /* first desc of a non-ps chain */ smbuf->m_flags |= M_PKTHDR; smbuf->m_pkthdr.len = smbuf->m_len; *next_to_clean = AL_ETH_RX_RING_IDX_NEXT(rx_ring, *next_to_clean); return (smbuf); } mbuf->m_data = mbuf->m_data + AL_IP_ALIGNMENT_OFFSET; /* Unmap the buffer */ bus_dmamap_unload(rx_ring->dma_buf_tag, rx_info->dma_map); rx_info->m = NULL; *next_to_clean = AL_ETH_RX_RING_IDX_NEXT(rx_ring, *next_to_clean); return (mbuf); } static void al_eth_rx_recv_work(void *arg, int pending) { struct al_eth_ring *rx_ring = arg; struct mbuf *mbuf; unsigned int qid = rx_ring->ring_id; struct al_eth_pkt *hal_pkt = &rx_ring->hal_pkt; uint16_t next_to_clean = rx_ring->next_to_clean; uint32_t refill_required; uint32_t refill_actual; uint32_t do_if_input; if (napi != 0) { rx_ring->enqueue_is_running = 1; al_data_memory_barrier(); } do { unsigned int descs; descs = al_eth_pkt_rx(rx_ring->dma_q, hal_pkt); if (unlikely(descs == 0)) break; device_printf_dbg(rx_ring->dev, "rx_poll: q %d got packet " "from hal. descs %d\n", qid, descs); device_printf_dbg(rx_ring->dev, "rx_poll: q %d flags %x. " "l3 proto %d l4 proto %d\n", qid, hal_pkt->flags, hal_pkt->l3_proto_idx, hal_pkt->l4_proto_idx); /* ignore if detected dma or eth controller errors */ if ((hal_pkt->flags & (AL_ETH_RX_ERROR | AL_UDMA_CDESC_ERROR)) != 0) { device_printf(rx_ring->dev, "receive packet with error. " "flags = 0x%x\n", hal_pkt->flags); next_to_clean = AL_ETH_RX_RING_IDX_ADD(rx_ring, next_to_clean, descs); continue; } /* allocate mbuf and fill it */ mbuf = al_eth_rx_mbuf(rx_ring->adapter, rx_ring, hal_pkt, descs, &next_to_clean); /* exit if we failed to retrieve a buffer */ if (unlikely(mbuf == NULL)) { next_to_clean = AL_ETH_RX_RING_IDX_ADD(rx_ring, next_to_clean, descs); break; } if (__predict_true(if_getcapenable(rx_ring->netdev) & IFCAP_RXCSUM || if_getcapenable(rx_ring->netdev) & IFCAP_RXCSUM_IPV6)) { al_eth_rx_checksum(rx_ring->adapter, hal_pkt, mbuf); } mbuf->m_pkthdr.flowid = qid; M_HASHTYPE_SET(mbuf, M_HASHTYPE_OPAQUE); /* * LRO is only for IP/TCP packets and TCP checksum of the packet * should be computed by hardware. */ do_if_input = 1; if ((rx_ring->lro_enabled != 0) && ((mbuf->m_pkthdr.csum_flags & CSUM_IP_VALID) != 0) && hal_pkt->l4_proto_idx == AL_ETH_PROTO_ID_TCP) { /* * Send to the stack if: * - LRO not enabled, or * - no LRO resources, or * - lro enqueue fails */ if (rx_ring->lro.lro_cnt != 0) { if (tcp_lro_rx(&rx_ring->lro, mbuf, 0) == 0) do_if_input = 0; } } if (do_if_input) if_input(rx_ring->netdev, mbuf); } while (1); rx_ring->next_to_clean = next_to_clean; refill_required = al_udma_available_get(rx_ring->dma_q); refill_actual = al_eth_refill_rx_bufs(rx_ring->adapter, qid, refill_required); if (unlikely(refill_actual < refill_required)) { device_printf_dbg(rx_ring->dev, "%s: not filling rx queue %d\n", __func__, qid); } tcp_lro_flush_all(&rx_ring->lro); if (napi != 0) { rx_ring->enqueue_is_running = 0; al_data_memory_barrier(); } /* unmask irq */ al_eth_irq_config(rx_ring->unmask_reg_offset, rx_ring->unmask_val); } static void al_eth_start_xmit(void *arg, int pending) { struct al_eth_ring *tx_ring = arg; struct mbuf *mbuf; if (napi != 0) { tx_ring->enqueue_is_running = 1; al_data_memory_barrier(); } while (1) { mtx_lock(&tx_ring->br_mtx); mbuf = drbr_dequeue(NULL, tx_ring->br); mtx_unlock(&tx_ring->br_mtx); if (mbuf == NULL) break; al_eth_xmit_mbuf(tx_ring, mbuf); } if (napi != 0) { tx_ring->enqueue_is_running = 0; al_data_memory_barrier(); while (1) { mtx_lock(&tx_ring->br_mtx); mbuf = drbr_dequeue(NULL, tx_ring->br); mtx_unlock(&tx_ring->br_mtx); if (mbuf == NULL) break; al_eth_xmit_mbuf(tx_ring, mbuf); } } } static int al_mq_start(if_t ifp, struct mbuf *m) { struct al_eth_adapter *adapter = if_getsoftc(ifp); struct al_eth_ring *tx_ring; int i; int ret; /* Which queue to use */ if (M_HASHTYPE_GET(m) != M_HASHTYPE_NONE) i = m->m_pkthdr.flowid % adapter->num_tx_queues; else i = curcpu % adapter->num_tx_queues; if ((if_getdrvflags(ifp) & (IFF_DRV_RUNNING|IFF_DRV_OACTIVE)) != IFF_DRV_RUNNING) { return (EFAULT); } tx_ring = &adapter->tx_ring[i]; device_printf_dbg(adapter->dev, "dgb start() - assuming link is active, " "sending packet to queue %d\n", i); ret = drbr_enqueue(ifp, tx_ring->br, m); /* * For napi, if work is not running, schedule it. Always schedule * for casual (non-napi) packet handling. */ if ((napi == 0) || ((napi != 0) && (tx_ring->enqueue_is_running == 0))) taskqueue_enqueue(tx_ring->enqueue_tq, &tx_ring->enqueue_task); return (ret); } static void al_qflush(if_t ifp) { /* unused */ } static inline void al_eth_flow_ctrl_init(struct al_eth_adapter *adapter) { uint8_t default_flow_ctrl; default_flow_ctrl = AL_ETH_FLOW_CTRL_TX_PAUSE; default_flow_ctrl |= AL_ETH_FLOW_CTRL_RX_PAUSE; adapter->link_config.flow_ctrl_supported = default_flow_ctrl; } static int al_eth_flow_ctrl_config(struct al_eth_adapter *adapter) { struct al_eth_flow_control_params *flow_ctrl_params; uint8_t active = adapter->link_config.flow_ctrl_active; int i; flow_ctrl_params = &adapter->flow_ctrl_params; flow_ctrl_params->type = AL_ETH_FLOW_CONTROL_TYPE_LINK_PAUSE; flow_ctrl_params->obay_enable = ((active & AL_ETH_FLOW_CTRL_RX_PAUSE) != 0); flow_ctrl_params->gen_enable = ((active & AL_ETH_FLOW_CTRL_TX_PAUSE) != 0); flow_ctrl_params->rx_fifo_th_high = AL_ETH_FLOW_CTRL_RX_FIFO_TH_HIGH; flow_ctrl_params->rx_fifo_th_low = AL_ETH_FLOW_CTRL_RX_FIFO_TH_LOW; flow_ctrl_params->quanta = AL_ETH_FLOW_CTRL_QUANTA; flow_ctrl_params->quanta_th = AL_ETH_FLOW_CTRL_QUANTA_TH; /* map priority to queue index, queue id = priority/2 */ for (i = 0; i < AL_ETH_FWD_PRIO_TABLE_NUM; i++) flow_ctrl_params->prio_q_map[0][i] = 1 << (i >> 1); al_eth_flow_control_config(&adapter->hal_adapter, flow_ctrl_params); return (0); } static void al_eth_flow_ctrl_enable(struct al_eth_adapter *adapter) { /* * change the active configuration to the default / force by ethtool * and call to configure */ adapter->link_config.flow_ctrl_active = adapter->link_config.flow_ctrl_supported; al_eth_flow_ctrl_config(adapter); } static void al_eth_flow_ctrl_disable(struct al_eth_adapter *adapter) { adapter->link_config.flow_ctrl_active = 0; al_eth_flow_ctrl_config(adapter); } static int al_eth_hw_init(struct al_eth_adapter *adapter) { int rc; rc = al_eth_hw_init_adapter(adapter); if (rc != 0) return (rc); rc = al_eth_mac_config(&adapter->hal_adapter, adapter->mac_mode); if (rc < 0) { device_printf(adapter->dev, "%s failed to configure mac!\n", __func__); return (rc); } if ((adapter->mac_mode == AL_ETH_MAC_MODE_SGMII) || (adapter->mac_mode == AL_ETH_MAC_MODE_RGMII && adapter->phy_exist == false)) { rc = al_eth_mac_link_config(&adapter->hal_adapter, adapter->link_config.force_1000_base_x, adapter->link_config.autoneg, adapter->link_config.active_speed, adapter->link_config.active_duplex); if (rc != 0) { device_printf(adapter->dev, "%s failed to configure link parameters!\n", __func__); return (rc); } } rc = al_eth_mdio_config(&adapter->hal_adapter, AL_ETH_MDIO_TYPE_CLAUSE_22, AL_TRUE /* shared_mdio_if */, adapter->ref_clk_freq, adapter->mdio_freq); if (rc != 0) { device_printf(adapter->dev, "%s failed at mdio config!\n", __func__); return (rc); } al_eth_flow_ctrl_init(adapter); return (rc); } static int al_eth_hw_stop(struct al_eth_adapter *adapter) { al_eth_mac_stop(&adapter->hal_adapter); /* * wait till pending rx packets written and UDMA becomes idle, * the MAC has ~10KB fifo, 10us should be enough time for the * UDMA to write to the memory */ DELAY(10); al_eth_adapter_stop(&adapter->hal_adapter); adapter->flags |= AL_ETH_FLAG_RESET_REQUESTED; /* disable flow ctrl to avoid pause packets*/ al_eth_flow_ctrl_disable(adapter); return (0); } /* * al_eth_intr_intx_all - Legacy Interrupt Handler for all interrupts * @irq: interrupt number * @data: pointer to a network interface device structure */ static int al_eth_intr_intx_all(void *data) { struct al_eth_adapter *adapter = data; struct unit_regs __iomem *regs_base = (struct unit_regs __iomem *)adapter->udma_base; uint32_t reg; reg = al_udma_iofic_read_cause(regs_base, AL_UDMA_IOFIC_LEVEL_PRIMARY, AL_INT_GROUP_A); if (likely(reg)) device_printf_dbg(adapter->dev, "%s group A cause %x\n", __func__, reg); if (unlikely(reg & AL_INT_GROUP_A_GROUP_D_SUM)) { struct al_iofic_grp_ctrl __iomem *sec_ints_base; uint32_t cause_d = al_udma_iofic_read_cause(regs_base, AL_UDMA_IOFIC_LEVEL_PRIMARY, AL_INT_GROUP_D); sec_ints_base = ®s_base->gen.interrupt_regs.secondary_iofic_ctrl[0]; if (cause_d != 0) { device_printf_dbg(adapter->dev, "got interrupt from group D. cause %x\n", cause_d); cause_d = al_iofic_read_cause(sec_ints_base, AL_INT_GROUP_A); device_printf(adapter->dev, "secondary A cause %x\n", cause_d); cause_d = al_iofic_read_cause(sec_ints_base, AL_INT_GROUP_B); device_printf_dbg(adapter->dev, "secondary B cause %x\n", cause_d); } } if ((reg & AL_INT_GROUP_A_GROUP_B_SUM) != 0 ) { uint32_t cause_b = al_udma_iofic_read_cause(regs_base, AL_UDMA_IOFIC_LEVEL_PRIMARY, AL_INT_GROUP_B); int qid; device_printf_dbg(adapter->dev, "secondary B cause %x\n", cause_b); for (qid = 0; qid < adapter->num_rx_queues; qid++) { if (cause_b & (1 << qid)) { /* mask */ al_udma_iofic_mask( (struct unit_regs __iomem *)adapter->udma_base, AL_UDMA_IOFIC_LEVEL_PRIMARY, AL_INT_GROUP_B, 1 << qid); } } } if ((reg & AL_INT_GROUP_A_GROUP_C_SUM) != 0) { uint32_t cause_c = al_udma_iofic_read_cause(regs_base, AL_UDMA_IOFIC_LEVEL_PRIMARY, AL_INT_GROUP_C); int qid; device_printf_dbg(adapter->dev, "secondary C cause %x\n", cause_c); for (qid = 0; qid < adapter->num_tx_queues; qid++) { if ((cause_c & (1 << qid)) != 0) { al_udma_iofic_mask( (struct unit_regs __iomem *)adapter->udma_base, AL_UDMA_IOFIC_LEVEL_PRIMARY, AL_INT_GROUP_C, 1 << qid); } } } al_eth_tx_cmlp_irq_filter(adapter->tx_ring); return (0); } static int al_eth_intr_msix_all(void *data) { struct al_eth_adapter *adapter = data; device_printf_dbg(adapter->dev, "%s\n", __func__); return (0); } static int al_eth_intr_msix_mgmt(void *data) { struct al_eth_adapter *adapter = data; device_printf_dbg(adapter->dev, "%s\n", __func__); return (0); } static int al_eth_enable_msix(struct al_eth_adapter *adapter) { int i, msix_vecs, rc, count; device_printf_dbg(adapter->dev, "%s\n", __func__); msix_vecs = 1 + adapter->num_rx_queues + adapter->num_tx_queues; device_printf_dbg(adapter->dev, "Try to enable MSIX, vector numbers = %d\n", msix_vecs); adapter->msix_entries = malloc(msix_vecs*sizeof(*adapter->msix_entries), M_IFAL, M_ZERO | M_WAITOK); /* management vector (GROUP_A) @2*/ adapter->msix_entries[AL_ETH_MGMT_IRQ_IDX].entry = 2; adapter->msix_entries[AL_ETH_MGMT_IRQ_IDX].vector = 0; /* rx queues start @3 */ for (i = 0; i < adapter->num_rx_queues; i++) { int irq_idx = AL_ETH_RXQ_IRQ_IDX(adapter, i); adapter->msix_entries[irq_idx].entry = 3 + i; adapter->msix_entries[irq_idx].vector = 0; } /* tx queues start @7 */ for (i = 0; i < adapter->num_tx_queues; i++) { int irq_idx = AL_ETH_TXQ_IRQ_IDX(adapter, i); adapter->msix_entries[irq_idx].entry = 3 + AL_ETH_MAX_HW_QUEUES + i; adapter->msix_entries[irq_idx].vector = 0; } count = msix_vecs + 2; /* entries start from 2 */ rc = pci_alloc_msix(adapter->dev, &count); if (rc != 0) { device_printf_dbg(adapter->dev, "failed to allocate MSIX " "vectors %d\n", msix_vecs+2); device_printf_dbg(adapter->dev, "ret = %d\n", rc); goto msix_entries_exit; } if (count != msix_vecs + 2) { device_printf_dbg(adapter->dev, "failed to allocate all MSIX " "vectors %d, allocated %d\n", msix_vecs+2, count); rc = ENOSPC; goto msix_entries_exit; } for (i = 0; i < msix_vecs; i++) adapter->msix_entries[i].vector = 2 + 1 + i; device_printf_dbg(adapter->dev, "successfully enabled MSIX," " vectors %d\n", msix_vecs); adapter->msix_vecs = msix_vecs; adapter->flags |= AL_ETH_FLAG_MSIX_ENABLED; goto exit; msix_entries_exit: adapter->msix_vecs = 0; free(adapter->msix_entries, M_IFAL); adapter->msix_entries = NULL; exit: return (rc); } static int al_eth_setup_int_mode(struct al_eth_adapter *adapter) { int i, rc; rc = al_eth_enable_msix(adapter); if (rc != 0) { device_printf(adapter->dev, "Failed to enable MSIX mode.\n"); return (rc); } adapter->irq_vecs = max(1, adapter->msix_vecs); /* single INTX mode */ if (adapter->msix_vecs == 0) { snprintf(adapter->irq_tbl[AL_ETH_MGMT_IRQ_IDX].name, AL_ETH_IRQNAME_SIZE, "al-eth-intx-all@pci:%s", device_get_name(adapter->dev)); adapter->irq_tbl[AL_ETH_MGMT_IRQ_IDX].handler = al_eth_intr_intx_all; /* IRQ vector will be resolved from device resources */ adapter->irq_tbl[AL_ETH_MGMT_IRQ_IDX].vector = 0; adapter->irq_tbl[AL_ETH_MGMT_IRQ_IDX].data = adapter; device_printf(adapter->dev, "%s and vector %d \n", __func__, adapter->irq_tbl[AL_ETH_MGMT_IRQ_IDX].vector); return (0); } /* single MSI-X mode */ if (adapter->msix_vecs == 1) { snprintf(adapter->irq_tbl[AL_ETH_MGMT_IRQ_IDX].name, AL_ETH_IRQNAME_SIZE, "al-eth-msix-all@pci:%s", device_get_name(adapter->dev)); adapter->irq_tbl[AL_ETH_MGMT_IRQ_IDX].handler = al_eth_intr_msix_all; adapter->irq_tbl[AL_ETH_MGMT_IRQ_IDX].vector = adapter->msix_entries[AL_ETH_MGMT_IRQ_IDX].vector; adapter->irq_tbl[AL_ETH_MGMT_IRQ_IDX].data = adapter; return (0); } /* MSI-X per queue */ snprintf(adapter->irq_tbl[AL_ETH_MGMT_IRQ_IDX].name, AL_ETH_IRQNAME_SIZE, "al-eth-msix-mgmt@pci:%s", device_get_name(adapter->dev)); adapter->irq_tbl[AL_ETH_MGMT_IRQ_IDX].handler = al_eth_intr_msix_mgmt; adapter->irq_tbl[AL_ETH_MGMT_IRQ_IDX].data = adapter; adapter->irq_tbl[AL_ETH_MGMT_IRQ_IDX].vector = adapter->msix_entries[AL_ETH_MGMT_IRQ_IDX].vector; for (i = 0; i < adapter->num_rx_queues; i++) { int irq_idx = AL_ETH_RXQ_IRQ_IDX(adapter, i); snprintf(adapter->irq_tbl[irq_idx].name, AL_ETH_IRQNAME_SIZE, "al-eth-rx-comp-%d@pci:%s", i, device_get_name(adapter->dev)); adapter->irq_tbl[irq_idx].handler = al_eth_rx_recv_irq_filter; adapter->irq_tbl[irq_idx].data = &adapter->rx_ring[i]; adapter->irq_tbl[irq_idx].vector = adapter->msix_entries[irq_idx].vector; } for (i = 0; i < adapter->num_tx_queues; i++) { int irq_idx = AL_ETH_TXQ_IRQ_IDX(adapter, i); snprintf(adapter->irq_tbl[irq_idx].name, AL_ETH_IRQNAME_SIZE, "al-eth-tx-comp-%d@pci:%s", i, device_get_name(adapter->dev)); adapter->irq_tbl[irq_idx].handler = al_eth_tx_cmlp_irq_filter; adapter->irq_tbl[irq_idx].data = &adapter->tx_ring[i]; adapter->irq_tbl[irq_idx].vector = adapter->msix_entries[irq_idx].vector; } return (0); } static void __al_eth_free_irq(struct al_eth_adapter *adapter) { struct al_eth_irq *irq; int i, rc; for (i = 0; i < adapter->irq_vecs; i++) { irq = &adapter->irq_tbl[i]; if (irq->requested != 0) { device_printf_dbg(adapter->dev, "tear down irq: %d\n", irq->vector); rc = bus_teardown_intr(adapter->dev, irq->res, irq->cookie); if (rc != 0) device_printf(adapter->dev, "failed to tear " "down irq: %d\n", irq->vector); } irq->requested = 0; } } static void al_eth_free_irq(struct al_eth_adapter *adapter) { struct al_eth_irq *irq; int i, rc; #ifdef CONFIG_RFS_ACCEL if (adapter->msix_vecs >= 1) { free_irq_cpu_rmap(adapter->netdev->rx_cpu_rmap); adapter->netdev->rx_cpu_rmap = NULL; } #endif __al_eth_free_irq(adapter); for (i = 0; i < adapter->irq_vecs; i++) { irq = &adapter->irq_tbl[i]; if (irq->res == NULL) continue; device_printf_dbg(adapter->dev, "release resource irq: %d\n", irq->vector); rc = bus_release_resource(adapter->dev, SYS_RES_IRQ, irq->vector, irq->res); irq->res = NULL; if (rc != 0) device_printf(adapter->dev, "dev has no parent while " "releasing res for irq: %d\n", irq->vector); } pci_release_msi(adapter->dev); adapter->flags &= ~AL_ETH_FLAG_MSIX_ENABLED; adapter->msix_vecs = 0; free(adapter->msix_entries, M_IFAL); adapter->msix_entries = NULL; } static int al_eth_request_irq(struct al_eth_adapter *adapter) { unsigned long flags; struct al_eth_irq *irq; int rc = 0, i, v; if ((adapter->flags & AL_ETH_FLAG_MSIX_ENABLED) != 0) flags = RF_ACTIVE; else flags = RF_ACTIVE | RF_SHAREABLE; for (i = 0; i < adapter->irq_vecs; i++) { irq = &adapter->irq_tbl[i]; if (irq->requested != 0) continue; irq->res = bus_alloc_resource_any(adapter->dev, SYS_RES_IRQ, &irq->vector, flags); if (irq->res == NULL) { device_printf(adapter->dev, "could not allocate " "irq vector=%d\n", irq->vector); rc = ENXIO; goto exit_res; } if ((rc = bus_setup_intr(adapter->dev, irq->res, INTR_TYPE_NET | INTR_MPSAFE, irq->handler, NULL, irq->data, &irq->cookie)) != 0) { device_printf(adapter->dev, "failed to register " "interrupt handler for irq %ju: %d\n", (uintmax_t)rman_get_start(irq->res), rc); goto exit_intr; } irq->requested = 1; } goto exit; exit_intr: v = i - 1; /* -1 because we omit the operation that failed */ while (v-- >= 0) { int bti; irq = &adapter->irq_tbl[v]; bti = bus_teardown_intr(adapter->dev, irq->res, irq->cookie); if (bti != 0) { device_printf(adapter->dev, "failed to tear " "down irq: %d\n", irq->vector); } irq->requested = 0; device_printf_dbg(adapter->dev, "exit_intr: releasing irq %d\n", irq->vector); } exit_res: v = i - 1; /* -1 because we omit the operation that failed */ while (v-- >= 0) { int brr; irq = &adapter->irq_tbl[v]; device_printf_dbg(adapter->dev, "exit_res: releasing resource" " for irq %d\n", irq->vector); brr = bus_release_resource(adapter->dev, SYS_RES_IRQ, irq->vector, irq->res); if (brr != 0) device_printf(adapter->dev, "dev has no parent while " "releasing res for irq: %d\n", irq->vector); irq->res = NULL; } exit: return (rc); } /** * al_eth_setup_tx_resources - allocate Tx resources (Descriptors) * @adapter: network interface device structure * @qid: queue index * * Return 0 on success, negative on failure **/ static int al_eth_setup_tx_resources(struct al_eth_adapter *adapter, int qid) { struct al_eth_ring *tx_ring = &adapter->tx_ring[qid]; device_t dev = tx_ring->dev; struct al_udma_q_params *q_params = &tx_ring->q_params; int size; int ret; if (adapter->up) return (0); size = sizeof(struct al_eth_tx_buffer) * tx_ring->sw_count; tx_ring->tx_buffer_info = malloc(size, M_IFAL, M_ZERO | M_WAITOK); tx_ring->descs_size = tx_ring->hw_count * sizeof(union al_udma_desc); q_params->size = tx_ring->hw_count; ret = al_dma_alloc_coherent(dev, &q_params->desc_phy_base_tag, (bus_dmamap_t *)&q_params->desc_phy_base_map, (bus_addr_t *)&q_params->desc_phy_base, (void**)&q_params->desc_base, tx_ring->descs_size); if (ret != 0) { device_printf(dev, "failed to al_dma_alloc_coherent," " ret = %d\n", ret); return (ENOMEM); } if (q_params->desc_base == NULL) return (ENOMEM); device_printf_dbg(dev, "Initializing ring queues %d\n", qid); /* Allocate Ring Queue */ mtx_init(&tx_ring->br_mtx, "AlRingMtx", NULL, MTX_DEF); tx_ring->br = buf_ring_alloc(AL_BR_SIZE, M_DEVBUF, M_WAITOK, &tx_ring->br_mtx); /* Allocate taskqueues */ TASK_INIT(&tx_ring->enqueue_task, 0, al_eth_start_xmit, tx_ring); tx_ring->enqueue_tq = taskqueue_create_fast("al_tx_enque", M_NOWAIT, taskqueue_thread_enqueue, &tx_ring->enqueue_tq); taskqueue_start_threads(&tx_ring->enqueue_tq, 1, PI_NET, "%s txeq", device_get_nameunit(adapter->dev)); TASK_INIT(&tx_ring->cmpl_task, 0, al_eth_tx_cmpl_work, tx_ring); tx_ring->cmpl_tq = taskqueue_create_fast("al_tx_cmpl", M_NOWAIT, taskqueue_thread_enqueue, &tx_ring->cmpl_tq); taskqueue_start_threads(&tx_ring->cmpl_tq, 1, PI_REALTIME, "%s txcq", device_get_nameunit(adapter->dev)); /* Setup DMA descriptor areas. */ ret = bus_dma_tag_create(bus_get_dma_tag(dev), 1, 0, /* alignment, bounds */ BUS_SPACE_MAXADDR, /* lowaddr */ BUS_SPACE_MAXADDR, /* highaddr */ NULL, NULL, /* filter, filterarg */ AL_TSO_SIZE, /* maxsize */ AL_ETH_PKT_MAX_BUFS, /* nsegments */ PAGE_SIZE, /* maxsegsize */ 0, /* flags */ NULL, /* lockfunc */ NULL, /* lockfuncarg */ &tx_ring->dma_buf_tag); if (ret != 0) { device_printf(dev,"Unable to allocate dma_buf_tag, ret = %d\n", ret); return (ret); } for (size = 0; size < tx_ring->sw_count; size++) { ret = bus_dmamap_create(tx_ring->dma_buf_tag, 0, &tx_ring->tx_buffer_info[size].dma_map); if (ret != 0) { device_printf(dev, "Unable to map DMA TX " "buffer memory [iter=%d]\n", size); return (ret); } } /* completion queue not used for tx */ q_params->cdesc_base = NULL; /* size in bytes of the udma completion ring descriptor */ q_params->cdesc_size = 8; tx_ring->next_to_use = 0; tx_ring->next_to_clean = 0; return (0); } /* * al_eth_free_tx_resources - Free Tx Resources per Queue * @adapter: network interface device structure * @qid: queue index * * Free all transmit software resources */ static void al_eth_free_tx_resources(struct al_eth_adapter *adapter, int qid) { struct al_eth_ring *tx_ring = &adapter->tx_ring[qid]; struct al_udma_q_params *q_params = &tx_ring->q_params; int size; /* At this point interrupts' handlers must be deactivated */ while (taskqueue_cancel(tx_ring->cmpl_tq, &tx_ring->cmpl_task, NULL)) taskqueue_drain(tx_ring->cmpl_tq, &tx_ring->cmpl_task); taskqueue_free(tx_ring->cmpl_tq); while (taskqueue_cancel(tx_ring->enqueue_tq, &tx_ring->enqueue_task, NULL)) { taskqueue_drain(tx_ring->enqueue_tq, &tx_ring->enqueue_task); } taskqueue_free(tx_ring->enqueue_tq); if (tx_ring->br != NULL) { drbr_flush(adapter->netdev, tx_ring->br); buf_ring_free(tx_ring->br, M_DEVBUF); } for (size = 0; size < tx_ring->sw_count; size++) { m_freem(tx_ring->tx_buffer_info[size].m); tx_ring->tx_buffer_info[size].m = NULL; bus_dmamap_unload(tx_ring->dma_buf_tag, tx_ring->tx_buffer_info[size].dma_map); bus_dmamap_destroy(tx_ring->dma_buf_tag, tx_ring->tx_buffer_info[size].dma_map); } bus_dma_tag_destroy(tx_ring->dma_buf_tag); free(tx_ring->tx_buffer_info, M_IFAL); tx_ring->tx_buffer_info = NULL; mtx_destroy(&tx_ring->br_mtx); /* if not set, then don't free */ if (q_params->desc_base == NULL) return; al_dma_free_coherent(q_params->desc_phy_base_tag, q_params->desc_phy_base_map, q_params->desc_base); q_params->desc_base = NULL; } /* * al_eth_free_all_tx_resources - Free Tx Resources for All Queues * @adapter: board private structure * * Free all transmit software resources */ static void al_eth_free_all_tx_resources(struct al_eth_adapter *adapter) { int i; for (i = 0; i < adapter->num_tx_queues; i++) if (adapter->tx_ring[i].q_params.desc_base) al_eth_free_tx_resources(adapter, i); } /* * al_eth_setup_rx_resources - allocate Rx resources (Descriptors) * @adapter: network interface device structure * @qid: queue index * * Returns 0 on success, negative on failure */ static int al_eth_setup_rx_resources(struct al_eth_adapter *adapter, unsigned int qid) { struct al_eth_ring *rx_ring = &adapter->rx_ring[qid]; device_t dev = rx_ring->dev; struct al_udma_q_params *q_params = &rx_ring->q_params; int size; int ret; size = sizeof(struct al_eth_rx_buffer) * rx_ring->sw_count; /* alloc extra element so in rx path we can always prefetch rx_info + 1 */ size += 1; rx_ring->rx_buffer_info = malloc(size, M_IFAL, M_ZERO | M_WAITOK); rx_ring->descs_size = rx_ring->hw_count * sizeof(union al_udma_desc); q_params->size = rx_ring->hw_count; ret = al_dma_alloc_coherent(dev, &q_params->desc_phy_base_tag, &q_params->desc_phy_base_map, (bus_addr_t *)&q_params->desc_phy_base, (void**)&q_params->desc_base, rx_ring->descs_size); if ((q_params->desc_base == NULL) || (ret != 0)) return (ENOMEM); /* size in bytes of the udma completion ring descriptor */ q_params->cdesc_size = 16; rx_ring->cdescs_size = rx_ring->hw_count * q_params->cdesc_size; ret = al_dma_alloc_coherent(dev, &q_params->cdesc_phy_base_tag, &q_params->cdesc_phy_base_map, (bus_addr_t *)&q_params->cdesc_phy_base, (void**)&q_params->cdesc_base, rx_ring->cdescs_size); if ((q_params->cdesc_base == NULL) || (ret != 0)) return (ENOMEM); /* Allocate taskqueues */ NET_TASK_INIT(&rx_ring->enqueue_task, 0, al_eth_rx_recv_work, rx_ring); rx_ring->enqueue_tq = taskqueue_create_fast("al_rx_enque", M_NOWAIT, taskqueue_thread_enqueue, &rx_ring->enqueue_tq); taskqueue_start_threads(&rx_ring->enqueue_tq, 1, PI_NET, "%s rxeq", device_get_nameunit(adapter->dev)); /* Setup DMA descriptor areas. */ ret = bus_dma_tag_create(bus_get_dma_tag(dev), 1, 0, /* alignment, bounds */ BUS_SPACE_MAXADDR, /* lowaddr */ BUS_SPACE_MAXADDR, /* highaddr */ NULL, NULL, /* filter, filterarg */ AL_TSO_SIZE, /* maxsize */ 1, /* nsegments */ AL_TSO_SIZE, /* maxsegsize */ 0, /* flags */ NULL, /* lockfunc */ NULL, /* lockfuncarg */ &rx_ring->dma_buf_tag); if (ret != 0) { device_printf(dev,"Unable to allocate RX dma_buf_tag\n"); return (ret); } for (size = 0; size < rx_ring->sw_count; size++) { ret = bus_dmamap_create(rx_ring->dma_buf_tag, 0, &rx_ring->rx_buffer_info[size].dma_map); if (ret != 0) { device_printf(dev,"Unable to map DMA RX buffer memory\n"); return (ret); } } /* Zero out the descriptor ring */ memset(q_params->cdesc_base, 0, rx_ring->cdescs_size); /* Create LRO for the ring */ if ((if_getcapenable(adapter->netdev) & IFCAP_LRO) != 0) { int err = tcp_lro_init(&rx_ring->lro); if (err != 0) { device_printf(adapter->dev, "LRO[%d] Initialization failed!\n", qid); } else { device_printf_dbg(adapter->dev, "RX Soft LRO[%d] Initialized\n", qid); rx_ring->lro_enabled = true; rx_ring->lro.ifp = adapter->netdev; } } rx_ring->next_to_clean = 0; rx_ring->next_to_use = 0; return (0); } /* * al_eth_free_rx_resources - Free Rx Resources * @adapter: network interface device structure * @qid: queue index * * Free all receive software resources */ static void al_eth_free_rx_resources(struct al_eth_adapter *adapter, unsigned int qid) { struct al_eth_ring *rx_ring = &adapter->rx_ring[qid]; struct al_udma_q_params *q_params = &rx_ring->q_params; int size; /* At this point interrupts' handlers must be deactivated */ while (taskqueue_cancel(rx_ring->enqueue_tq, &rx_ring->enqueue_task, NULL)) { taskqueue_drain(rx_ring->enqueue_tq, &rx_ring->enqueue_task); } taskqueue_free(rx_ring->enqueue_tq); for (size = 0; size < rx_ring->sw_count; size++) { m_freem(rx_ring->rx_buffer_info[size].m); rx_ring->rx_buffer_info[size].m = NULL; bus_dmamap_unload(rx_ring->dma_buf_tag, rx_ring->rx_buffer_info[size].dma_map); bus_dmamap_destroy(rx_ring->dma_buf_tag, rx_ring->rx_buffer_info[size].dma_map); } bus_dma_tag_destroy(rx_ring->dma_buf_tag); free(rx_ring->rx_buffer_info, M_IFAL); rx_ring->rx_buffer_info = NULL; /* if not set, then don't free */ if (q_params->desc_base == NULL) return; al_dma_free_coherent(q_params->desc_phy_base_tag, q_params->desc_phy_base_map, q_params->desc_base); q_params->desc_base = NULL; /* if not set, then don't free */ if (q_params->cdesc_base == NULL) return; al_dma_free_coherent(q_params->cdesc_phy_base_tag, q_params->cdesc_phy_base_map, q_params->cdesc_base); q_params->cdesc_phy_base = 0; /* Free LRO resources */ tcp_lro_free(&rx_ring->lro); } /* * al_eth_free_all_rx_resources - Free Rx Resources for All Queues * @adapter: board private structure * * Free all receive software resources */ static void al_eth_free_all_rx_resources(struct al_eth_adapter *adapter) { int i; for (i = 0; i < adapter->num_rx_queues; i++) if (adapter->rx_ring[i].q_params.desc_base != 0) al_eth_free_rx_resources(adapter, i); } /* * al_eth_setup_all_rx_resources - allocate all queues Rx resources * @adapter: board private structure * * Return 0 on success, negative on failure */ static int al_eth_setup_all_rx_resources(struct al_eth_adapter *adapter) { int i, rc = 0; for (i = 0; i < adapter->num_rx_queues; i++) { rc = al_eth_setup_rx_resources(adapter, i); if (rc == 0) continue; device_printf(adapter->dev, "Allocation for Rx Queue %u failed\n", i); goto err_setup_rx; } return (0); err_setup_rx: /* rewind the index freeing the rings as we go */ while (i--) al_eth_free_rx_resources(adapter, i); return (rc); } /* * al_eth_setup_all_tx_resources - allocate all queues Tx resources * @adapter: private structure * * Return 0 on success, negative on failure */ static int al_eth_setup_all_tx_resources(struct al_eth_adapter *adapter) { int i, rc = 0; for (i = 0; i < adapter->num_tx_queues; i++) { rc = al_eth_setup_tx_resources(adapter, i); if (rc == 0) continue; device_printf(adapter->dev, "Allocation for Tx Queue %u failed\n", i); goto err_setup_tx; } return (0); err_setup_tx: /* rewind the index freeing the rings as we go */ while (i--) al_eth_free_tx_resources(adapter, i); return (rc); } static void al_eth_disable_int_sync(struct al_eth_adapter *adapter) { /* disable forwarding interrupts from eth through pci end point */ if ((adapter->board_type == ALPINE_FPGA_NIC) || (adapter->board_type == ALPINE_NIC)) { al_eth_forward_int_config((uint32_t*)adapter->internal_pcie_base + AL_REG_OFFSET_FORWARD_INTR, AL_DIS_FORWARD_INTR); } /* mask hw interrupts */ al_eth_interrupts_mask(adapter); } static void al_eth_interrupts_unmask(struct al_eth_adapter *adapter) { uint32_t group_a_mask = AL_INT_GROUP_A_GROUP_D_SUM; /* enable group D summery */ uint32_t group_b_mask = (1 << adapter->num_rx_queues) - 1;/* bit per Rx q*/ uint32_t group_c_mask = (1 << adapter->num_tx_queues) - 1;/* bit per Tx q*/ uint32_t group_d_mask = 3 << 8; struct unit_regs __iomem *regs_base = (struct unit_regs __iomem *)adapter->udma_base; if (adapter->int_mode == AL_IOFIC_MODE_LEGACY) group_a_mask |= AL_INT_GROUP_A_GROUP_B_SUM | AL_INT_GROUP_A_GROUP_C_SUM | AL_INT_GROUP_A_GROUP_D_SUM; al_udma_iofic_unmask(regs_base, AL_UDMA_IOFIC_LEVEL_PRIMARY, AL_INT_GROUP_A, group_a_mask); al_udma_iofic_unmask(regs_base, AL_UDMA_IOFIC_LEVEL_PRIMARY, AL_INT_GROUP_B, group_b_mask); al_udma_iofic_unmask(regs_base, AL_UDMA_IOFIC_LEVEL_PRIMARY, AL_INT_GROUP_C, group_c_mask); al_udma_iofic_unmask(regs_base, AL_UDMA_IOFIC_LEVEL_PRIMARY, AL_INT_GROUP_D, group_d_mask); } static void al_eth_interrupts_mask(struct al_eth_adapter *adapter) { struct unit_regs __iomem *regs_base = (struct unit_regs __iomem *)adapter->udma_base; /* mask all interrupts */ al_udma_iofic_mask(regs_base, AL_UDMA_IOFIC_LEVEL_PRIMARY, AL_INT_GROUP_A, AL_MASK_GROUP_A_INT); al_udma_iofic_mask(regs_base, AL_UDMA_IOFIC_LEVEL_PRIMARY, AL_INT_GROUP_B, AL_MASK_GROUP_B_INT); al_udma_iofic_mask(regs_base, AL_UDMA_IOFIC_LEVEL_PRIMARY, AL_INT_GROUP_C, AL_MASK_GROUP_C_INT); al_udma_iofic_mask(regs_base, AL_UDMA_IOFIC_LEVEL_PRIMARY, AL_INT_GROUP_D, AL_MASK_GROUP_D_INT); } static int al_eth_configure_int_mode(struct al_eth_adapter *adapter) { enum al_iofic_mode int_mode; uint32_t m2s_errors_disable = AL_M2S_MASK_INIT; uint32_t m2s_aborts_disable = AL_M2S_MASK_INIT; uint32_t s2m_errors_disable = AL_S2M_MASK_INIT; uint32_t s2m_aborts_disable = AL_S2M_MASK_INIT; /* single INTX mode */ if (adapter->msix_vecs == 0) int_mode = AL_IOFIC_MODE_LEGACY; else if (adapter->msix_vecs > 1) int_mode = AL_IOFIC_MODE_MSIX_PER_Q; else { device_printf(adapter->dev, "udma doesn't support single MSI-X mode yet.\n"); return (EIO); } if (adapter->board_type != ALPINE_INTEGRATED) { m2s_errors_disable |= AL_M2S_S2M_MASK_NOT_INT; m2s_errors_disable |= AL_M2S_S2M_MASK_NOT_INT; s2m_aborts_disable |= AL_M2S_S2M_MASK_NOT_INT; s2m_aborts_disable |= AL_M2S_S2M_MASK_NOT_INT; } if (al_udma_iofic_config((struct unit_regs __iomem *)adapter->udma_base, int_mode, m2s_errors_disable, m2s_aborts_disable, s2m_errors_disable, s2m_aborts_disable)) { device_printf(adapter->dev, "al_udma_unit_int_config failed!.\n"); return (EIO); } adapter->int_mode = int_mode; device_printf_dbg(adapter->dev, "using %s interrupt mode\n", int_mode == AL_IOFIC_MODE_LEGACY ? "INTx" : int_mode == AL_IOFIC_MODE_MSIX_PER_Q ? "MSI-X per Queue" : "Unknown"); /* set interrupt moderation resolution to 15us */ al_iofic_moder_res_config(&((struct unit_regs *)(adapter->udma_base))->gen.interrupt_regs.main_iofic, AL_INT_GROUP_B, 15); al_iofic_moder_res_config(&((struct unit_regs *)(adapter->udma_base))->gen.interrupt_regs.main_iofic, AL_INT_GROUP_C, 15); /* by default interrupt coalescing is disabled */ adapter->tx_usecs = 0; adapter->rx_usecs = 0; return (0); } /* * ethtool_rxfh_indir_default - get default value for RX flow hash indirection * @index: Index in RX flow hash indirection table * @n_rx_rings: Number of RX rings to use * * This function provides the default policy for RX flow hash indirection. */ static inline uint32_t ethtool_rxfh_indir_default(uint32_t index, uint32_t n_rx_rings) { return (index % n_rx_rings); } static void* al_eth_update_stats(struct al_eth_adapter *adapter) { struct al_eth_mac_stats *mac_stats = &adapter->mac_stats; if (adapter->up == 0) return (NULL); al_eth_mac_stats_get(&adapter->hal_adapter, mac_stats); return (NULL); } static uint64_t al_get_counter(if_t ifp, ift_counter cnt) { struct al_eth_adapter *adapter; struct al_eth_mac_stats *mac_stats; uint64_t rv; adapter = if_getsoftc(ifp); mac_stats = &adapter->mac_stats; switch (cnt) { case IFCOUNTER_IPACKETS: return (mac_stats->aFramesReceivedOK); /* including pause frames */ case IFCOUNTER_OPACKETS: return (mac_stats->aFramesTransmittedOK); case IFCOUNTER_IBYTES: return (mac_stats->aOctetsReceivedOK); case IFCOUNTER_OBYTES: return (mac_stats->aOctetsTransmittedOK); case IFCOUNTER_IMCASTS: return (mac_stats->ifInMulticastPkts); case IFCOUNTER_OMCASTS: return (mac_stats->ifOutMulticastPkts); case IFCOUNTER_COLLISIONS: return (0); case IFCOUNTER_IQDROPS: return (mac_stats->etherStatsDropEvents); case IFCOUNTER_IERRORS: rv = mac_stats->ifInErrors + mac_stats->etherStatsUndersizePkts + /* good but short */ mac_stats->etherStatsFragments + /* short and bad*/ mac_stats->etherStatsJabbers + /* with crc errors */ mac_stats->etherStatsOversizePkts + mac_stats->aFrameCheckSequenceErrors + mac_stats->aAlignmentErrors; return (rv); case IFCOUNTER_OERRORS: return (mac_stats->ifOutErrors); default: return (if_get_counter_default(ifp, cnt)); } } static u_int al_count_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt) { unsigned char *mac; mac = LLADDR(sdl); /* default mc address inside mac address */ if (mac[3] != 0 && mac[4] != 0 && mac[5] != 1) return (1); else return (0); } static u_int al_program_addr(void *arg, struct sockaddr_dl *sdl, u_int cnt) { struct al_eth_adapter *adapter = arg; al_eth_mac_table_unicast_add(adapter, AL_ETH_MAC_TABLE_UNICAST_IDX_BASE + 1 + cnt, 1); return (1); } /* * Unicast, Multicast and Promiscuous mode set * * The set_rx_mode entry point is called whenever the unicast or multicast * address lists or the network interface flags are updated. This routine is * responsible for configuring the hardware for proper unicast, multicast, * promiscuous mode, and all-multi behavior. */ static void al_eth_set_rx_mode(struct al_eth_adapter *adapter) { if_t ifp = adapter->netdev; int mc, uc; uint8_t i; /* XXXGL: why generic count won't work? */ mc = if_foreach_llmaddr(ifp, al_count_maddr, NULL); uc = if_lladdr_count(ifp); if ((if_getflags(ifp) & IFF_PROMISC) != 0) { al_eth_mac_table_promiscuous_set(adapter, true); } else { if ((if_getflags(ifp) & IFF_ALLMULTI) != 0) { /* This interface is in all-multicasts mode (used by multicast routers). */ al_eth_mac_table_all_multicast_add(adapter, AL_ETH_MAC_TABLE_ALL_MULTICAST_IDX, 1); } else { if (mc == 0) { al_eth_mac_table_entry_clear(adapter, AL_ETH_MAC_TABLE_ALL_MULTICAST_IDX); } else { al_eth_mac_table_all_multicast_add(adapter, AL_ETH_MAC_TABLE_ALL_MULTICAST_IDX, 1); } } if (uc != 0) { i = AL_ETH_MAC_TABLE_UNICAST_IDX_BASE + 1; if (uc > AL_ETH_MAC_TABLE_UNICAST_MAX_COUNT) { /* * In this case there are more addresses then * entries in the mac table - set promiscuous */ al_eth_mac_table_promiscuous_set(adapter, true); return; } /* clear the last configuration */ while (i < (AL_ETH_MAC_TABLE_UNICAST_IDX_BASE + AL_ETH_MAC_TABLE_UNICAST_MAX_COUNT)) { al_eth_mac_table_entry_clear(adapter, i); i++; } /* set new addresses */ if_foreach_lladdr(ifp, al_program_addr, adapter); } al_eth_mac_table_promiscuous_set(adapter, false); } } static void al_eth_config_rx_fwd(struct al_eth_adapter *adapter) { struct al_eth_fwd_ctrl_table_entry entry; int i; /* let priority be equal to pbits */ for (i = 0; i < AL_ETH_FWD_PBITS_TABLE_NUM; i++) al_eth_fwd_pbits_table_set(&adapter->hal_adapter, i, i); /* map priority to queue index, queue id = priority/2 */ for (i = 0; i < AL_ETH_FWD_PRIO_TABLE_NUM; i++) al_eth_fwd_priority_table_set(&adapter->hal_adapter, i, i >> 1); entry.prio_sel = AL_ETH_CTRL_TABLE_PRIO_SEL_VAL_0; entry.queue_sel_1 = AL_ETH_CTRL_TABLE_QUEUE_SEL_1_THASH_TABLE; entry.queue_sel_2 = AL_ETH_CTRL_TABLE_QUEUE_SEL_2_NO_PRIO; entry.udma_sel = AL_ETH_CTRL_TABLE_UDMA_SEL_MAC_TABLE; entry.filter = false; al_eth_ctrl_table_def_set(&adapter->hal_adapter, AL_FALSE, &entry); /* * By default set the mac table to forward all unicast packets to our * MAC address and all broadcast. all the rest will be dropped. */ al_eth_mac_table_unicast_add(adapter, AL_ETH_MAC_TABLE_UNICAST_IDX_BASE, 1); al_eth_mac_table_broadcast_add(adapter, AL_ETH_MAC_TABLE_BROADCAST_IDX, 1); al_eth_mac_table_promiscuous_set(adapter, false); /* set toeplitz hash keys */ for (i = 0; i < sizeof(adapter->toeplitz_hash_key); i++) *((uint8_t*)adapter->toeplitz_hash_key + i) = (uint8_t)random(); for (i = 0; i < AL_ETH_RX_HASH_KEY_NUM; i++) al_eth_hash_key_set(&adapter->hal_adapter, i, htonl(adapter->toeplitz_hash_key[i])); for (i = 0; i < AL_ETH_RX_RSS_TABLE_SIZE; i++) { adapter->rss_ind_tbl[i] = ethtool_rxfh_indir_default(i, AL_ETH_NUM_QUEUES); al_eth_set_thash_table_entry(adapter, i, 0, adapter->rss_ind_tbl[i]); } al_eth_fsm_table_init(adapter); } static void al_eth_req_rx_buff_size(struct al_eth_adapter *adapter, int size) { /* * Determine the correct mbuf pool * for doing jumbo frames * Try from the smallest up to maximum supported */ adapter->rx_mbuf_sz = MCLBYTES; if (size > 2048) { if (adapter->max_rx_buff_alloc_size > 2048) adapter->rx_mbuf_sz = MJUMPAGESIZE; else return; } if (size > 4096) { if (adapter->max_rx_buff_alloc_size > 4096) adapter->rx_mbuf_sz = MJUM9BYTES; else return; } if (size > 9216) { if (adapter->max_rx_buff_alloc_size > 9216) adapter->rx_mbuf_sz = MJUM16BYTES; else return; } } static int al_eth_change_mtu(struct al_eth_adapter *adapter, int new_mtu) { int max_frame = new_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN; al_eth_req_rx_buff_size(adapter, new_mtu); device_printf_dbg(adapter->dev, "set MTU to %d\n", new_mtu); al_eth_rx_pkt_limit_config(&adapter->hal_adapter, AL_ETH_MIN_FRAME_LEN, max_frame); al_eth_tso_mss_config(&adapter->hal_adapter, 0, new_mtu - 100); return (0); } static int al_eth_check_mtu(struct al_eth_adapter *adapter, int new_mtu) { int max_frame = new_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN; if ((new_mtu < AL_ETH_MIN_FRAME_LEN) || (max_frame > AL_ETH_MAX_FRAME_LEN)) { return (EINVAL); } return (0); } static int al_eth_udma_queue_enable(struct al_eth_adapter *adapter, enum al_udma_type type, int qid) { int rc = 0; char *name = (type == UDMA_TX) ? "Tx" : "Rx"; struct al_udma_q_params *q_params; if (type == UDMA_TX) q_params = &adapter->tx_ring[qid].q_params; else q_params = &adapter->rx_ring[qid].q_params; rc = al_eth_queue_config(&adapter->hal_adapter, type, qid, q_params); if (rc < 0) { device_printf(adapter->dev, "config %s queue %u failed\n", name, qid); return (rc); } return (rc); } static int al_eth_udma_queues_enable_all(struct al_eth_adapter *adapter) { int i; for (i = 0; i < adapter->num_tx_queues; i++) al_eth_udma_queue_enable(adapter, UDMA_TX, i); for (i = 0; i < adapter->num_rx_queues; i++) al_eth_udma_queue_enable(adapter, UDMA_RX, i); return (0); } static void al_eth_up_complete(struct al_eth_adapter *adapter) { al_eth_configure_int_mode(adapter); al_eth_config_rx_fwd(adapter); al_eth_change_mtu(adapter, if_getmtu(adapter->netdev)); al_eth_udma_queues_enable_all(adapter); al_eth_refill_all_rx_bufs(adapter); al_eth_interrupts_unmask(adapter); /* enable forwarding interrupts from eth through pci end point */ if ((adapter->board_type == ALPINE_FPGA_NIC) || (adapter->board_type == ALPINE_NIC)) { al_eth_forward_int_config((uint32_t*)adapter->internal_pcie_base + AL_REG_OFFSET_FORWARD_INTR, AL_EN_FORWARD_INTR); } al_eth_flow_ctrl_enable(adapter); mtx_lock(&adapter->stats_mtx); callout_reset(&adapter->stats_callout, hz, al_tick_stats, (void*)adapter); mtx_unlock(&adapter->stats_mtx); al_eth_mac_start(&adapter->hal_adapter); } static int al_media_update(if_t ifp) { struct al_eth_adapter *adapter = if_getsoftc(ifp); if ((if_getflags(ifp) & IFF_UP) != 0) mii_mediachg(adapter->mii); return (0); } static void al_media_status(if_t ifp, struct ifmediareq *ifmr) { struct al_eth_adapter *sc = if_getsoftc(ifp); struct mii_data *mii; if (sc->mii == NULL) { ifmr->ifm_active = IFM_ETHER | IFM_NONE; ifmr->ifm_status = 0; return; } mii = sc->mii; mii_pollstat(mii); ifmr->ifm_active = mii->mii_media_active; ifmr->ifm_status = mii->mii_media_status; } static void al_tick(void *arg) { struct al_eth_adapter *adapter = arg; mii_tick(adapter->mii); /* Schedule another timeout one second from now */ callout_schedule(&adapter->wd_callout, hz); } static void al_tick_stats(void *arg) { struct al_eth_adapter *adapter = arg; al_eth_update_stats(adapter); callout_schedule(&adapter->stats_callout, hz); } static int al_eth_up(struct al_eth_adapter *adapter) { if_t ifp = adapter->netdev; int rc; if (adapter->up) return (0); if ((adapter->flags & AL_ETH_FLAG_RESET_REQUESTED) != 0) { al_eth_function_reset(adapter); adapter->flags &= ~AL_ETH_FLAG_RESET_REQUESTED; } if_sethwassist(ifp, 0); if ((if_getcapenable(ifp) & IFCAP_TSO) != 0) if_sethwassistbits(ifp, CSUM_TSO, 0); if ((if_getcapenable(ifp) & IFCAP_TXCSUM) != 0) if_sethwassistbits(ifp, (CSUM_TCP | CSUM_UDP), 0); if ((if_getcapenable(ifp) & IFCAP_TXCSUM_IPV6) != 0) if_sethwassistbits(ifp, (CSUM_TCP_IPV6 | CSUM_UDP_IPV6), 0); al_eth_serdes_init(adapter); rc = al_eth_hw_init(adapter); if (rc != 0) goto err_hw_init_open; rc = al_eth_setup_int_mode(adapter); if (rc != 0) { device_printf(adapter->dev, "%s failed at setup interrupt mode!\n", __func__); goto err_setup_int; } /* allocate transmit descriptors */ rc = al_eth_setup_all_tx_resources(adapter); if (rc != 0) goto err_setup_tx; /* allocate receive descriptors */ rc = al_eth_setup_all_rx_resources(adapter); if (rc != 0) goto err_setup_rx; rc = al_eth_request_irq(adapter); if (rc != 0) goto err_req_irq; al_eth_up_complete(adapter); adapter->up = true; if (adapter->mac_mode == AL_ETH_MAC_MODE_10GbE_Serial) if_link_state_change(adapter->netdev, LINK_STATE_UP); if (adapter->mac_mode == AL_ETH_MAC_MODE_RGMII) { mii_mediachg(adapter->mii); /* Schedule watchdog timeout */ mtx_lock(&adapter->wd_mtx); callout_reset(&adapter->wd_callout, hz, al_tick, adapter); mtx_unlock(&adapter->wd_mtx); mii_pollstat(adapter->mii); } return (rc); err_req_irq: al_eth_free_all_rx_resources(adapter); err_setup_rx: al_eth_free_all_tx_resources(adapter); err_setup_tx: al_eth_free_irq(adapter); err_setup_int: al_eth_hw_stop(adapter); err_hw_init_open: al_eth_function_reset(adapter); return (rc); } static int al_shutdown(device_t dev) { struct al_eth_adapter *adapter = device_get_softc(dev); al_eth_down(adapter); return (0); } static void al_eth_down(struct al_eth_adapter *adapter) { device_printf_dbg(adapter->dev, "al_eth_down: begin\n"); adapter->up = false; mtx_lock(&adapter->wd_mtx); callout_stop(&adapter->wd_callout); mtx_unlock(&adapter->wd_mtx); al_eth_disable_int_sync(adapter); mtx_lock(&adapter->stats_mtx); callout_stop(&adapter->stats_callout); mtx_unlock(&adapter->stats_mtx); al_eth_free_irq(adapter); al_eth_hw_stop(adapter); al_eth_free_all_tx_resources(adapter); al_eth_free_all_rx_resources(adapter); } static int al_ioctl(if_t ifp, u_long command, caddr_t data) { struct al_eth_adapter *adapter = if_getsoftc(ifp); struct ifreq *ifr = (struct ifreq *)data; int error = 0; switch (command) { case SIOCSIFMTU: { error = al_eth_check_mtu(adapter, ifr->ifr_mtu); if (error != 0) { device_printf(adapter->dev, "ioctl wrong mtu %u\n", if_getmtu(adapter->netdev)); break; } if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING); if_setmtu(adapter->netdev, ifr->ifr_mtu); al_init(adapter); break; } case SIOCSIFFLAGS: if ((if_getflags(ifp) & IFF_UP) != 0) { if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) != 0) { if (((if_getflags(ifp) ^ adapter->if_flags) & (IFF_PROMISC | IFF_ALLMULTI)) != 0) { device_printf_dbg(adapter->dev, "ioctl promisc/allmulti\n"); al_eth_set_rx_mode(adapter); } } else { error = al_eth_up(adapter); if (error == 0) if_setdrvflagbits(ifp, IFF_DRV_RUNNING, 0); } } else { if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) != 0) { al_eth_down(adapter); if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING); } } adapter->if_flags = if_getflags(ifp); break; case SIOCADDMULTI: case SIOCDELMULTI: if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) != 0) { device_printf_dbg(adapter->dev, "ioctl add/del multi before\n"); al_eth_set_rx_mode(adapter); #ifdef DEVICE_POLLING if ((if_getcapenable(ifp) & IFCAP_POLLING) == 0) #endif } break; case SIOCSIFMEDIA: case SIOCGIFMEDIA: if (adapter->mii != NULL) error = ifmedia_ioctl(ifp, ifr, &adapter->mii->mii_media, command); else error = ifmedia_ioctl(ifp, ifr, &adapter->media, command); break; case SIOCSIFCAP: { int mask, reinit; reinit = 0; mask = ifr->ifr_reqcap ^ if_getcapenable(ifp); #ifdef DEVICE_POLLING if ((mask & IFCAP_POLLING) != 0) { if ((ifr->ifr_reqcap & IFCAP_POLLING) != 0) { if (error != 0) return (error); if_setcapenablebit(ifp, IFCAP_POLLING, 0); } else { error = ether_poll_deregister(ifp); /* Enable interrupt even in error case */ if_setcapenablebit(ifp, 0, IFCAP_POLLING); } } #endif if ((mask & IFCAP_HWCSUM) != 0) { /* apply to both rx and tx */ if_togglecapenable(ifp, IFCAP_HWCSUM); reinit = 1; } if ((mask & IFCAP_HWCSUM_IPV6) != 0) { if_togglecapenable(ifp, IFCAP_HWCSUM_IPV6); reinit = 1; } if ((mask & IFCAP_TSO) != 0) { if_togglecapenable(ifp, IFCAP_TSO); reinit = 1; } if ((mask & IFCAP_LRO) != 0) { if_togglecapenable(ifp, IFCAP_LRO); } if ((mask & IFCAP_VLAN_HWTAGGING) != 0) { if_togglecapenable(ifp, IFCAP_VLAN_HWTAGGING); reinit = 1; } if ((mask & IFCAP_VLAN_HWFILTER) != 0) { if_togglecapenable(ifp, IFCAP_VLAN_HWFILTER); reinit = 1; } if ((mask & IFCAP_VLAN_HWTSO) != 0) { if_togglecapenable(ifp, IFCAP_VLAN_HWTSO); reinit = 1; } if ((reinit != 0) && ((if_getdrvflags(ifp) & IFF_DRV_RUNNING)) != 0) { al_init(adapter); } break; } default: error = ether_ioctl(ifp, command, data); break; } return (error); } static int al_is_device_supported(device_t dev) { uint16_t pci_vendor_id = pci_get_vendor(dev); uint16_t pci_device_id = pci_get_device(dev); return (pci_vendor_id == PCI_VENDOR_ID_ANNAPURNA_LABS && (pci_device_id == PCI_DEVICE_ID_AL_ETH || pci_device_id == PCI_DEVICE_ID_AL_ETH_ADVANCED || pci_device_id == PCI_DEVICE_ID_AL_ETH_NIC || pci_device_id == PCI_DEVICE_ID_AL_ETH_FPGA_NIC)); } /* Time in mSec to keep trying to read / write from MDIO in case of error */ #define MDIO_TIMEOUT_MSEC 100 #define MDIO_PAUSE_MSEC 10 static int al_miibus_readreg(device_t dev, int phy, int reg) { struct al_eth_adapter *adapter = device_get_softc(dev); uint16_t value = 0; int rc; int timeout = MDIO_TIMEOUT_MSEC; while (timeout > 0) { rc = al_eth_mdio_read(&adapter->hal_adapter, adapter->phy_addr, -1, reg, &value); if (rc == 0) return (value); device_printf_dbg(adapter->dev, "mdio read failed. try again in 10 msec\n"); timeout -= MDIO_PAUSE_MSEC; pause("readred pause", MDIO_PAUSE_MSEC); } if (rc != 0) device_printf(adapter->dev, "MDIO read failed on timeout\n"); return (value); } static int al_miibus_writereg(device_t dev, int phy, int reg, int value) { struct al_eth_adapter *adapter = device_get_softc(dev); int rc; int timeout = MDIO_TIMEOUT_MSEC; while (timeout > 0) { rc = al_eth_mdio_write(&adapter->hal_adapter, adapter->phy_addr, -1, reg, value); if (rc == 0) return (0); device_printf(adapter->dev, "mdio write failed. try again in 10 msec\n"); timeout -= MDIO_PAUSE_MSEC; pause("miibus writereg", MDIO_PAUSE_MSEC); } if (rc != 0) device_printf(adapter->dev, "MDIO write failed on timeout\n"); return (rc); } static void al_miibus_statchg(device_t dev) { struct al_eth_adapter *adapter = device_get_softc(dev); device_printf_dbg(adapter->dev, "al_miibus_statchg: state has changed!\n"); device_printf_dbg(adapter->dev, "al_miibus_statchg: active = 0x%x status = 0x%x\n", adapter->mii->mii_media_active, adapter->mii->mii_media_status); if (adapter->up == 0) return; if ((adapter->mii->mii_media_status & IFM_AVALID) != 0) { if (adapter->mii->mii_media_status & IFM_ACTIVE) { device_printf(adapter->dev, "link is UP\n"); if_link_state_change(adapter->netdev, LINK_STATE_UP); } else { device_printf(adapter->dev, "link is DOWN\n"); if_link_state_change(adapter->netdev, LINK_STATE_DOWN); } } } static void al_miibus_linkchg(device_t dev) { struct al_eth_adapter *adapter = device_get_softc(dev); uint8_t duplex = 0; uint8_t speed = 0; if (adapter->mii == NULL) return; if ((if_getflags(adapter->netdev) & IFF_UP) == 0) return; /* Ignore link changes when link is not ready */ if ((adapter->mii->mii_media_status & (IFM_AVALID | IFM_ACTIVE)) != (IFM_AVALID | IFM_ACTIVE)) { return; } if ((adapter->mii->mii_media_active & IFM_FDX) != 0) duplex = 1; speed = IFM_SUBTYPE(adapter->mii->mii_media_active); if (speed == IFM_10_T) { al_eth_mac_link_config(&adapter->hal_adapter, 0, 1, AL_10BASE_T_SPEED, duplex); return; } if (speed == IFM_100_TX) { al_eth_mac_link_config(&adapter->hal_adapter, 0, 1, AL_100BASE_TX_SPEED, duplex); return; } if (speed == IFM_1000_T) { al_eth_mac_link_config(&adapter->hal_adapter, 0, 1, AL_1000BASE_T_SPEED, duplex); return; } device_printf(adapter->dev, "ERROR: unknown MII media active 0x%08x\n", adapter->mii->mii_media_active); }