// SPDX-License-Identifier: GPL-2.0-only /**************************************************************************** * Driver for Solarflare network controllers and boards * Copyright 2005-2006 Fen Systems Ltd. * Copyright 2006-2013 Solarflare Communications Inc. */ #include #include #include #include #include #include #include "net_driver.h" #include "bitfield.h" #include "efx.h" #include "efx_common.h" #include "nic.h" #include "farch_regs.h" #include "io.h" #include "workarounds.h" #include "mcdi.h" #include "mcdi_pcol.h" #include "mcdi_port_common.h" #include "selftest.h" #include "siena_sriov.h" /* Hardware control for SFC9000 family including SFL9021 (aka Siena). */ static void siena_init_wol(struct efx_nic *efx); static void siena_push_irq_moderation(struct efx_channel *channel) { struct efx_nic *efx = channel->efx; efx_dword_t timer_cmd; if (channel->irq_moderation_us) { unsigned int ticks; ticks = efx_usecs_to_ticks(efx, channel->irq_moderation_us); EFX_POPULATE_DWORD_2(timer_cmd, FRF_CZ_TC_TIMER_MODE, FFE_CZ_TIMER_MODE_INT_HLDOFF, FRF_CZ_TC_TIMER_VAL, ticks - 1); } else { EFX_POPULATE_DWORD_2(timer_cmd, FRF_CZ_TC_TIMER_MODE, FFE_CZ_TIMER_MODE_DIS, FRF_CZ_TC_TIMER_VAL, 0); } efx_writed_page_locked(channel->efx, &timer_cmd, FR_BZ_TIMER_COMMAND_P0, channel->channel); } void siena_prepare_flush(struct efx_nic *efx) { if (efx->fc_disable++ == 0) efx_mcdi_set_mac(efx); } void siena_finish_flush(struct efx_nic *efx) { if (--efx->fc_disable == 0) efx_mcdi_set_mac(efx); } static const struct efx_farch_register_test siena_register_tests[] = { { FR_AZ_ADR_REGION, EFX_OWORD32(0x0003FFFF, 0x0003FFFF, 0x0003FFFF, 0x0003FFFF) }, { FR_CZ_USR_EV_CFG, EFX_OWORD32(0x000103FF, 0x00000000, 0x00000000, 0x00000000) }, { FR_AZ_RX_CFG, EFX_OWORD32(0xFFFFFFFE, 0xFFFFFFFF, 0x0003FFFF, 0x00000000) }, { FR_AZ_TX_CFG, EFX_OWORD32(0x7FFF0037, 0xFFFF8000, 0xFFFFFFFF, 0x03FFFFFF) }, { FR_AZ_TX_RESERVED, EFX_OWORD32(0xFFFEFE80, 0x1FFFFFFF, 0x020000FE, 0x007FFFFF) }, { FR_AZ_SRM_TX_DC_CFG, EFX_OWORD32(0x001FFFFF, 0x00000000, 0x00000000, 0x00000000) }, { FR_AZ_RX_DC_CFG, EFX_OWORD32(0x00000003, 0x00000000, 0x00000000, 0x00000000) }, { FR_AZ_RX_DC_PF_WM, EFX_OWORD32(0x000003FF, 0x00000000, 0x00000000, 0x00000000) }, { FR_BZ_DP_CTRL, EFX_OWORD32(0x00000FFF, 0x00000000, 0x00000000, 0x00000000) }, { FR_BZ_RX_RSS_TKEY, EFX_OWORD32(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF) }, { FR_CZ_RX_RSS_IPV6_REG1, EFX_OWORD32(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF) }, { FR_CZ_RX_RSS_IPV6_REG2, EFX_OWORD32(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF) }, { FR_CZ_RX_RSS_IPV6_REG3, EFX_OWORD32(0xFFFFFFFF, 0xFFFFFFFF, 0x00000007, 0x00000000) }, }; static int siena_test_chip(struct efx_nic *efx, struct efx_self_tests *tests) { enum reset_type reset_method = RESET_TYPE_ALL; int rc, rc2; efx_reset_down(efx, reset_method); /* Reset the chip immediately so that it is completely * quiescent regardless of what any VF driver does. */ rc = efx_mcdi_reset(efx, reset_method); if (rc) goto out; tests->registers = efx_farch_test_registers(efx, siena_register_tests, ARRAY_SIZE(siena_register_tests)) ? -1 : 1; rc = efx_mcdi_reset(efx, reset_method); out: rc2 = efx_reset_up(efx, reset_method, rc == 0); return rc ? rc : rc2; } /************************************************************************** * * PTP * ************************************************************************** */ static void siena_ptp_write_host_time(struct efx_nic *efx, u32 host_time) { _efx_writed(efx, cpu_to_le32(host_time), FR_CZ_MC_TREG_SMEM + MC_SMEM_P0_PTP_TIME_OFST); } static int siena_ptp_set_ts_config(struct efx_nic *efx, struct hwtstamp_config *init) { int rc; switch (init->rx_filter) { case HWTSTAMP_FILTER_NONE: /* if TX timestamping is still requested then leave PTP on */ return efx_ptp_change_mode(efx, init->tx_type != HWTSTAMP_TX_OFF, efx_ptp_get_mode(efx)); case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: init->rx_filter = HWTSTAMP_FILTER_PTP_V1_L4_EVENT; return efx_ptp_change_mode(efx, true, MC_CMD_PTP_MODE_V1); case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: init->rx_filter = HWTSTAMP_FILTER_PTP_V2_L4_EVENT; rc = efx_ptp_change_mode(efx, true, MC_CMD_PTP_MODE_V2_ENHANCED); /* bug 33070 - old versions of the firmware do not support the * improved UUID filtering option. Similarly old versions of the * application do not expect it to be enabled. If the firmware * does not accept the enhanced mode, fall back to the standard * PTP v2 UUID filtering. */ if (rc != 0) rc = efx_ptp_change_mode(efx, true, MC_CMD_PTP_MODE_V2); return rc; default: return -ERANGE; } } /************************************************************************** * * Device reset * ************************************************************************** */ static int siena_map_reset_flags(u32 *flags) { enum { SIENA_RESET_PORT = (ETH_RESET_DMA | ETH_RESET_FILTER | ETH_RESET_OFFLOAD | ETH_RESET_MAC | ETH_RESET_PHY), SIENA_RESET_MC = (SIENA_RESET_PORT | ETH_RESET_MGMT << ETH_RESET_SHARED_SHIFT), }; if ((*flags & SIENA_RESET_MC) == SIENA_RESET_MC) { *flags &= ~SIENA_RESET_MC; return RESET_TYPE_WORLD; } if ((*flags & SIENA_RESET_PORT) == SIENA_RESET_PORT) { *flags &= ~SIENA_RESET_PORT; return RESET_TYPE_ALL; } /* no invisible reset implemented */ return -EINVAL; } #ifdef CONFIG_EEH /* When a PCI device is isolated from the bus, a subsequent MMIO read is * required for the kernel EEH mechanisms to notice. As the Solarflare driver * was written to minimise MMIO read (for latency) then a periodic call to check * the EEH status of the device is required so that device recovery can happen * in a timely fashion. */ static void siena_monitor(struct efx_nic *efx) { struct eeh_dev *eehdev = pci_dev_to_eeh_dev(efx->pci_dev); eeh_dev_check_failure(eehdev); } #endif static int siena_probe_nvconfig(struct efx_nic *efx) { u32 caps = 0; int rc; rc = efx_mcdi_get_board_cfg(efx, efx->net_dev->perm_addr, NULL, &caps); efx->timer_quantum_ns = (caps & (1 << MC_CMD_CAPABILITIES_TURBO_ACTIVE_LBN)) ? 3072 : 6144; /* 768 cycles */ efx->timer_max_ns = efx->type->timer_period_max * efx->timer_quantum_ns; return rc; } static int siena_dimension_resources(struct efx_nic *efx) { /* Each port has a small block of internal SRAM dedicated to * the buffer table and descriptor caches. In theory we can * map both blocks to one port, but we don't. */ efx_farch_dimension_resources(efx, FR_CZ_BUF_FULL_TBL_ROWS / 2); return 0; } /* On all Falcon-architecture NICs, PFs use BAR 0 for I/O space and BAR 2(&3) * for memory. */ static unsigned int siena_mem_bar(struct efx_nic *efx) { return 2; } static unsigned int siena_mem_map_size(struct efx_nic *efx) { return FR_CZ_MC_TREG_SMEM + FR_CZ_MC_TREG_SMEM_STEP * FR_CZ_MC_TREG_SMEM_ROWS; } static int siena_probe_nic(struct efx_nic *efx) { struct siena_nic_data *nic_data; efx_oword_t reg; int rc; /* Allocate storage for hardware specific data */ nic_data = kzalloc(sizeof(struct siena_nic_data), GFP_KERNEL); if (!nic_data) return -ENOMEM; nic_data->efx = efx; efx->nic_data = nic_data; if (efx_farch_fpga_ver(efx) != 0) { netif_err(efx, probe, efx->net_dev, "Siena FPGA not supported\n"); rc = -ENODEV; goto fail1; } efx->max_channels = EFX_MAX_CHANNELS; efx->max_tx_channels = EFX_MAX_CHANNELS; efx_reado(efx, ®, FR_AZ_CS_DEBUG); efx->port_num = EFX_OWORD_FIELD(reg, FRF_CZ_CS_PORT_NUM) - 1; rc = efx_mcdi_init(efx); if (rc) goto fail1; /* Now we can reset the NIC */ rc = efx_mcdi_reset(efx, RESET_TYPE_ALL); if (rc) { netif_err(efx, probe, efx->net_dev, "failed to reset NIC\n"); goto fail3; } siena_init_wol(efx); /* Allocate memory for INT_KER */ rc = efx_nic_alloc_buffer(efx, &efx->irq_status, sizeof(efx_oword_t), GFP_KERNEL); if (rc) goto fail4; BUG_ON(efx->irq_status.dma_addr & 0x0f); netif_dbg(efx, probe, efx->net_dev, "INT_KER at %llx (virt %p phys %llx)\n", (unsigned long long)efx->irq_status.dma_addr, efx->irq_status.addr, (unsigned long long)virt_to_phys(efx->irq_status.addr)); /* Read in the non-volatile configuration */ rc = siena_probe_nvconfig(efx); if (rc == -EINVAL) { netif_err(efx, probe, efx->net_dev, "NVRAM is invalid therefore using defaults\n"); efx->phy_type = PHY_TYPE_NONE; efx->mdio.prtad = MDIO_PRTAD_NONE; } else if (rc) { goto fail5; } rc = efx_mcdi_mon_probe(efx); if (rc) goto fail5; #ifdef CONFIG_SFC_SRIOV efx_siena_sriov_probe(efx); #endif efx_ptp_defer_probe_with_channel(efx); return 0; fail5: efx_nic_free_buffer(efx, &efx->irq_status); fail4: fail3: efx_mcdi_detach(efx); efx_mcdi_fini(efx); fail1: kfree(efx->nic_data); return rc; } static int siena_rx_pull_rss_config(struct efx_nic *efx) { efx_oword_t temp; /* Read from IPv6 RSS key as that's longer (the IPv4 key is just the * first 128 bits of the same key, assuming it's been set by * siena_rx_push_rss_config, below) */ efx_reado(efx, &temp, FR_CZ_RX_RSS_IPV6_REG1); memcpy(efx->rss_context.rx_hash_key, &temp, sizeof(temp)); efx_reado(efx, &temp, FR_CZ_RX_RSS_IPV6_REG2); memcpy(efx->rss_context.rx_hash_key + sizeof(temp), &temp, sizeof(temp)); efx_reado(efx, &temp, FR_CZ_RX_RSS_IPV6_REG3); memcpy(efx->rss_context.rx_hash_key + 2 * sizeof(temp), &temp, FRF_CZ_RX_RSS_IPV6_TKEY_HI_WIDTH / 8); efx_farch_rx_pull_indir_table(efx); return 0; } static int siena_rx_push_rss_config(struct efx_nic *efx, bool user, const u32 *rx_indir_table, const u8 *key) { efx_oword_t temp; /* Set hash key for IPv4 */ if (key) memcpy(efx->rss_context.rx_hash_key, key, sizeof(temp)); memcpy(&temp, efx->rss_context.rx_hash_key, sizeof(temp)); efx_writeo(efx, &temp, FR_BZ_RX_RSS_TKEY); /* Enable IPv6 RSS */ BUILD_BUG_ON(sizeof(efx->rss_context.rx_hash_key) < 2 * sizeof(temp) + FRF_CZ_RX_RSS_IPV6_TKEY_HI_WIDTH / 8 || FRF_CZ_RX_RSS_IPV6_TKEY_HI_LBN != 0); memcpy(&temp, efx->rss_context.rx_hash_key, sizeof(temp)); efx_writeo(efx, &temp, FR_CZ_RX_RSS_IPV6_REG1); memcpy(&temp, efx->rss_context.rx_hash_key + sizeof(temp), sizeof(temp)); efx_writeo(efx, &temp, FR_CZ_RX_RSS_IPV6_REG2); EFX_POPULATE_OWORD_2(temp, FRF_CZ_RX_RSS_IPV6_THASH_ENABLE, 1, FRF_CZ_RX_RSS_IPV6_IP_THASH_ENABLE, 1); memcpy(&temp, efx->rss_context.rx_hash_key + 2 * sizeof(temp), FRF_CZ_RX_RSS_IPV6_TKEY_HI_WIDTH / 8); efx_writeo(efx, &temp, FR_CZ_RX_RSS_IPV6_REG3); memcpy(efx->rss_context.rx_indir_table, rx_indir_table, sizeof(efx->rss_context.rx_indir_table)); efx_farch_rx_push_indir_table(efx); return 0; } /* This call performs hardware-specific global initialisation, such as * defining the descriptor cache sizes and number of RSS channels. * It does not set up any buffers, descriptor rings or event queues. */ static int siena_init_nic(struct efx_nic *efx) { efx_oword_t temp; int rc; /* Recover from a failed assertion post-reset */ rc = efx_mcdi_handle_assertion(efx); if (rc) return rc; /* Squash TX of packets of 16 bytes or less */ efx_reado(efx, &temp, FR_AZ_TX_RESERVED); EFX_SET_OWORD_FIELD(temp, FRF_BZ_TX_FLUSH_MIN_LEN_EN, 1); efx_writeo(efx, &temp, FR_AZ_TX_RESERVED); /* Do not enable TX_NO_EOP_DISC_EN, since it limits packets to 16 * descriptors (which is bad). */ efx_reado(efx, &temp, FR_AZ_TX_CFG); EFX_SET_OWORD_FIELD(temp, FRF_AZ_TX_NO_EOP_DISC_EN, 0); EFX_SET_OWORD_FIELD(temp, FRF_CZ_TX_FILTER_EN_BIT, 1); efx_writeo(efx, &temp, FR_AZ_TX_CFG); efx_reado(efx, &temp, FR_AZ_RX_CFG); EFX_SET_OWORD_FIELD(temp, FRF_BZ_RX_DESC_PUSH_EN, 0); EFX_SET_OWORD_FIELD(temp, FRF_BZ_RX_INGR_EN, 1); /* Enable hash insertion. This is broken for the 'Falcon' hash * if IPv6 hashing is also enabled, so also select Toeplitz * TCP/IPv4 and IPv4 hashes. */ EFX_SET_OWORD_FIELD(temp, FRF_BZ_RX_HASH_INSRT_HDR, 1); EFX_SET_OWORD_FIELD(temp, FRF_BZ_RX_HASH_ALG, 1); EFX_SET_OWORD_FIELD(temp, FRF_BZ_RX_IP_HASH, 1); EFX_SET_OWORD_FIELD(temp, FRF_BZ_RX_USR_BUF_SIZE, EFX_RX_USR_BUF_SIZE >> 5); efx_writeo(efx, &temp, FR_AZ_RX_CFG); siena_rx_push_rss_config(efx, false, efx->rss_context.rx_indir_table, NULL); efx->rss_context.context_id = 0; /* indicates RSS is active */ /* Enable event logging */ rc = efx_mcdi_log_ctrl(efx, true, false, 0); if (rc) return rc; /* Set destination of both TX and RX Flush events */ EFX_POPULATE_OWORD_1(temp, FRF_BZ_FLS_EVQ_ID, 0); efx_writeo(efx, &temp, FR_BZ_DP_CTRL); EFX_POPULATE_OWORD_1(temp, FRF_CZ_USREV_DIS, 1); efx_writeo(efx, &temp, FR_CZ_USR_EV_CFG); efx_farch_init_common(efx); return 0; } static void siena_remove_nic(struct efx_nic *efx) { efx_mcdi_mon_remove(efx); efx_nic_free_buffer(efx, &efx->irq_status); efx_mcdi_reset(efx, RESET_TYPE_ALL); efx_mcdi_detach(efx); efx_mcdi_fini(efx); /* Tear down the private nic state */ kfree(efx->nic_data); efx->nic_data = NULL; } #define SIENA_DMA_STAT(ext_name, mcdi_name) \ [SIENA_STAT_ ## ext_name] = \ { #ext_name, 64, 8 * MC_CMD_MAC_ ## mcdi_name } #define SIENA_OTHER_STAT(ext_name) \ [SIENA_STAT_ ## ext_name] = { #ext_name, 0, 0 } #define GENERIC_SW_STAT(ext_name) \ [GENERIC_STAT_ ## ext_name] = { #ext_name, 0, 0 } static const struct efx_hw_stat_desc siena_stat_desc[SIENA_STAT_COUNT] = { SIENA_DMA_STAT(tx_bytes, TX_BYTES), SIENA_OTHER_STAT(tx_good_bytes), SIENA_DMA_STAT(tx_bad_bytes, TX_BAD_BYTES), SIENA_DMA_STAT(tx_packets, TX_PKTS), SIENA_DMA_STAT(tx_bad, TX_BAD_FCS_PKTS), SIENA_DMA_STAT(tx_pause, TX_PAUSE_PKTS), SIENA_DMA_STAT(tx_control, TX_CONTROL_PKTS), SIENA_DMA_STAT(tx_unicast, TX_UNICAST_PKTS), SIENA_DMA_STAT(tx_multicast, TX_MULTICAST_PKTS), SIENA_DMA_STAT(tx_broadcast, TX_BROADCAST_PKTS), SIENA_DMA_STAT(tx_lt64, TX_LT64_PKTS), SIENA_DMA_STAT(tx_64, TX_64_PKTS), SIENA_DMA_STAT(tx_65_to_127, TX_65_TO_127_PKTS), SIENA_DMA_STAT(tx_128_to_255, TX_128_TO_255_PKTS), SIENA_DMA_STAT(tx_256_to_511, TX_256_TO_511_PKTS), SIENA_DMA_STAT(tx_512_to_1023, TX_512_TO_1023_PKTS), SIENA_DMA_STAT(tx_1024_to_15xx, TX_1024_TO_15XX_PKTS), SIENA_DMA_STAT(tx_15xx_to_jumbo, TX_15XX_TO_JUMBO_PKTS), SIENA_DMA_STAT(tx_gtjumbo, TX_GTJUMBO_PKTS), SIENA_OTHER_STAT(tx_collision), SIENA_DMA_STAT(tx_single_collision, TX_SINGLE_COLLISION_PKTS), SIENA_DMA_STAT(tx_multiple_collision, TX_MULTIPLE_COLLISION_PKTS), SIENA_DMA_STAT(tx_excessive_collision, TX_EXCESSIVE_COLLISION_PKTS), SIENA_DMA_STAT(tx_deferred, TX_DEFERRED_PKTS), SIENA_DMA_STAT(tx_late_collision, TX_LATE_COLLISION_PKTS), SIENA_DMA_STAT(tx_excessive_deferred, TX_EXCESSIVE_DEFERRED_PKTS), SIENA_DMA_STAT(tx_non_tcpudp, TX_NON_TCPUDP_PKTS), SIENA_DMA_STAT(tx_mac_src_error, TX_MAC_SRC_ERR_PKTS), SIENA_DMA_STAT(tx_ip_src_error, TX_IP_SRC_ERR_PKTS), SIENA_DMA_STAT(rx_bytes, RX_BYTES), SIENA_OTHER_STAT(rx_good_bytes), SIENA_DMA_STAT(rx_bad_bytes, RX_BAD_BYTES), SIENA_DMA_STAT(rx_packets, RX_PKTS), SIENA_DMA_STAT(rx_good, RX_GOOD_PKTS), SIENA_DMA_STAT(rx_bad, RX_BAD_FCS_PKTS), SIENA_DMA_STAT(rx_pause, RX_PAUSE_PKTS), SIENA_DMA_STAT(rx_control, RX_CONTROL_PKTS), SIENA_DMA_STAT(rx_unicast, RX_UNICAST_PKTS), SIENA_DMA_STAT(rx_multicast, RX_MULTICAST_PKTS), SIENA_DMA_STAT(rx_broadcast, RX_BROADCAST_PKTS), SIENA_DMA_STAT(rx_lt64, RX_UNDERSIZE_PKTS), SIENA_DMA_STAT(rx_64, RX_64_PKTS), SIENA_DMA_STAT(rx_65_to_127, RX_65_TO_127_PKTS), SIENA_DMA_STAT(rx_128_to_255, RX_128_TO_255_PKTS), SIENA_DMA_STAT(rx_256_to_511, RX_256_TO_511_PKTS), SIENA_DMA_STAT(rx_512_to_1023, RX_512_TO_1023_PKTS), SIENA_DMA_STAT(rx_1024_to_15xx, RX_1024_TO_15XX_PKTS), SIENA_DMA_STAT(rx_15xx_to_jumbo, RX_15XX_TO_JUMBO_PKTS), SIENA_DMA_STAT(rx_gtjumbo, RX_GTJUMBO_PKTS), SIENA_DMA_STAT(rx_bad_gtjumbo, RX_JABBER_PKTS), SIENA_DMA_STAT(rx_overflow, RX_OVERFLOW_PKTS), SIENA_DMA_STAT(rx_false_carrier, RX_FALSE_CARRIER_PKTS), SIENA_DMA_STAT(rx_symbol_error, RX_SYMBOL_ERROR_PKTS), SIENA_DMA_STAT(rx_align_error, RX_ALIGN_ERROR_PKTS), SIENA_DMA_STAT(rx_length_error, RX_LENGTH_ERROR_PKTS), SIENA_DMA_STAT(rx_internal_error, RX_INTERNAL_ERROR_PKTS), SIENA_DMA_STAT(rx_nodesc_drop_cnt, RX_NODESC_DROPS), GENERIC_SW_STAT(rx_nodesc_trunc), GENERIC_SW_STAT(rx_noskb_drops), }; static const unsigned long siena_stat_mask[] = { [0 ... BITS_TO_LONGS(SIENA_STAT_COUNT) - 1] = ~0UL, }; static size_t siena_describe_nic_stats(struct efx_nic *efx, u8 *names) { return efx_nic_describe_stats(siena_stat_desc, SIENA_STAT_COUNT, siena_stat_mask, names); } static int siena_try_update_nic_stats(struct efx_nic *efx) { struct siena_nic_data *nic_data = efx->nic_data; u64 *stats = nic_data->stats; __le64 *dma_stats; __le64 generation_start, generation_end; dma_stats = efx->stats_buffer.addr; generation_end = dma_stats[efx->num_mac_stats - 1]; if (generation_end == EFX_MC_STATS_GENERATION_INVALID) return 0; rmb(); efx_nic_update_stats(siena_stat_desc, SIENA_STAT_COUNT, siena_stat_mask, stats, efx->stats_buffer.addr, false); rmb(); generation_start = dma_stats[MC_CMD_MAC_GENERATION_START]; if (generation_end != generation_start) return -EAGAIN; /* Update derived statistics */ efx_nic_fix_nodesc_drop_stat(efx, &stats[SIENA_STAT_rx_nodesc_drop_cnt]); efx_update_diff_stat(&stats[SIENA_STAT_tx_good_bytes], stats[SIENA_STAT_tx_bytes] - stats[SIENA_STAT_tx_bad_bytes]); stats[SIENA_STAT_tx_collision] = stats[SIENA_STAT_tx_single_collision] + stats[SIENA_STAT_tx_multiple_collision] + stats[SIENA_STAT_tx_excessive_collision] + stats[SIENA_STAT_tx_late_collision]; efx_update_diff_stat(&stats[SIENA_STAT_rx_good_bytes], stats[SIENA_STAT_rx_bytes] - stats[SIENA_STAT_rx_bad_bytes]); efx_update_sw_stats(efx, stats); return 0; } static size_t siena_update_nic_stats(struct efx_nic *efx, u64 *full_stats, struct rtnl_link_stats64 *core_stats) { struct siena_nic_data *nic_data = efx->nic_data; u64 *stats = nic_data->stats; int retry; /* If we're unlucky enough to read statistics wduring the DMA, wait * up to 10ms for it to finish (typically takes <500us) */ for (retry = 0; retry < 100; ++retry) { if (siena_try_update_nic_stats(efx) == 0) break; udelay(100); } if (full_stats) memcpy(full_stats, stats, sizeof(u64) * SIENA_STAT_COUNT); if (core_stats) { core_stats->rx_packets = stats[SIENA_STAT_rx_packets]; core_stats->tx_packets = stats[SIENA_STAT_tx_packets]; core_stats->rx_bytes = stats[SIENA_STAT_rx_bytes]; core_stats->tx_bytes = stats[SIENA_STAT_tx_bytes]; core_stats->rx_dropped = stats[SIENA_STAT_rx_nodesc_drop_cnt] + stats[GENERIC_STAT_rx_nodesc_trunc] + stats[GENERIC_STAT_rx_noskb_drops]; core_stats->multicast = stats[SIENA_STAT_rx_multicast]; core_stats->collisions = stats[SIENA_STAT_tx_collision]; core_stats->rx_length_errors = stats[SIENA_STAT_rx_gtjumbo] + stats[SIENA_STAT_rx_length_error]; core_stats->rx_crc_errors = stats[SIENA_STAT_rx_bad]; core_stats->rx_frame_errors = stats[SIENA_STAT_rx_align_error]; core_stats->rx_fifo_errors = stats[SIENA_STAT_rx_overflow]; core_stats->tx_window_errors = stats[SIENA_STAT_tx_late_collision]; core_stats->rx_errors = (core_stats->rx_length_errors + core_stats->rx_crc_errors + core_stats->rx_frame_errors + stats[SIENA_STAT_rx_symbol_error]); core_stats->tx_errors = (core_stats->tx_window_errors + stats[SIENA_STAT_tx_bad]); } return SIENA_STAT_COUNT; } static int siena_mac_reconfigure(struct efx_nic *efx) { MCDI_DECLARE_BUF(inbuf, MC_CMD_SET_MCAST_HASH_IN_LEN); int rc; BUILD_BUG_ON(MC_CMD_SET_MCAST_HASH_IN_LEN != MC_CMD_SET_MCAST_HASH_IN_HASH0_OFST + sizeof(efx->multicast_hash)); efx_farch_filter_sync_rx_mode(efx); WARN_ON(!mutex_is_locked(&efx->mac_lock)); rc = efx_mcdi_set_mac(efx); if (rc != 0) return rc; memcpy(MCDI_PTR(inbuf, SET_MCAST_HASH_IN_HASH0), efx->multicast_hash.byte, sizeof(efx->multicast_hash)); return efx_mcdi_rpc(efx, MC_CMD_SET_MCAST_HASH, inbuf, sizeof(inbuf), NULL, 0, NULL); } /************************************************************************** * * Wake on LAN * ************************************************************************** */ static void siena_get_wol(struct efx_nic *efx, struct ethtool_wolinfo *wol) { struct siena_nic_data *nic_data = efx->nic_data; wol->supported = WAKE_MAGIC; if (nic_data->wol_filter_id != -1) wol->wolopts = WAKE_MAGIC; else wol->wolopts = 0; memset(&wol->sopass, 0, sizeof(wol->sopass)); } static int siena_set_wol(struct efx_nic *efx, u32 type) { struct siena_nic_data *nic_data = efx->nic_data; int rc; if (type & ~WAKE_MAGIC) return -EINVAL; if (type & WAKE_MAGIC) { if (nic_data->wol_filter_id != -1) efx_mcdi_wol_filter_remove(efx, nic_data->wol_filter_id); rc = efx_mcdi_wol_filter_set_magic(efx, efx->net_dev->dev_addr, &nic_data->wol_filter_id); if (rc) goto fail; pci_wake_from_d3(efx->pci_dev, true); } else { rc = efx_mcdi_wol_filter_reset(efx); nic_data->wol_filter_id = -1; pci_wake_from_d3(efx->pci_dev, false); if (rc) goto fail; } return 0; fail: netif_err(efx, hw, efx->net_dev, "%s failed: type=%d rc=%d\n", __func__, type, rc); return rc; } static void siena_init_wol(struct efx_nic *efx) { struct siena_nic_data *nic_data = efx->nic_data; int rc; rc = efx_mcdi_wol_filter_get_magic(efx, &nic_data->wol_filter_id); if (rc != 0) { /* If it failed, attempt to get into a synchronised * state with MC by resetting any set WoL filters */ efx_mcdi_wol_filter_reset(efx); nic_data->wol_filter_id = -1; } else if (nic_data->wol_filter_id != -1) { pci_wake_from_d3(efx->pci_dev, true); } } /************************************************************************** * * MCDI * ************************************************************************** */ #define MCDI_PDU(efx) \ (efx_port_num(efx) ? MC_SMEM_P1_PDU_OFST : MC_SMEM_P0_PDU_OFST) #define MCDI_DOORBELL(efx) \ (efx_port_num(efx) ? MC_SMEM_P1_DOORBELL_OFST : MC_SMEM_P0_DOORBELL_OFST) #define MCDI_STATUS(efx) \ (efx_port_num(efx) ? MC_SMEM_P1_STATUS_OFST : MC_SMEM_P0_STATUS_OFST) static void siena_mcdi_request(struct efx_nic *efx, const efx_dword_t *hdr, size_t hdr_len, const efx_dword_t *sdu, size_t sdu_len) { unsigned pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx); unsigned doorbell = FR_CZ_MC_TREG_SMEM + MCDI_DOORBELL(efx); unsigned int i; unsigned int inlen_dw = DIV_ROUND_UP(sdu_len, 4); EFX_WARN_ON_PARANOID(hdr_len != 4); efx_writed(efx, hdr, pdu); for (i = 0; i < inlen_dw; i++) efx_writed(efx, &sdu[i], pdu + hdr_len + 4 * i); /* Ensure the request is written out before the doorbell */ wmb(); /* ring the doorbell with a distinctive value */ _efx_writed(efx, (__force __le32) 0x45789abc, doorbell); } static bool siena_mcdi_poll_response(struct efx_nic *efx) { unsigned int pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx); efx_dword_t hdr; efx_readd(efx, &hdr, pdu); /* All 1's indicates that shared memory is in reset (and is * not a valid hdr). Wait for it to come out reset before * completing the command */ return EFX_DWORD_FIELD(hdr, EFX_DWORD_0) != 0xffffffff && EFX_DWORD_FIELD(hdr, MCDI_HEADER_RESPONSE); } static void siena_mcdi_read_response(struct efx_nic *efx, efx_dword_t *outbuf, size_t offset, size_t outlen) { unsigned int pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx); unsigned int outlen_dw = DIV_ROUND_UP(outlen, 4); int i; for (i = 0; i < outlen_dw; i++) efx_readd(efx, &outbuf[i], pdu + offset + 4 * i); } static int siena_mcdi_poll_reboot(struct efx_nic *efx) { struct siena_nic_data *nic_data = efx->nic_data; unsigned int addr = FR_CZ_MC_TREG_SMEM + MCDI_STATUS(efx); efx_dword_t reg; u32 value; efx_readd(efx, ®, addr); value = EFX_DWORD_FIELD(reg, EFX_DWORD_0); if (value == 0) return 0; EFX_ZERO_DWORD(reg); efx_writed(efx, ®, addr); /* MAC statistics have been cleared on the NIC; clear the local * copies that we update with efx_update_diff_stat(). */ nic_data->stats[SIENA_STAT_tx_good_bytes] = 0; nic_data->stats[SIENA_STAT_rx_good_bytes] = 0; if (value == MC_STATUS_DWORD_ASSERT) return -EINTR; else return -EIO; } /************************************************************************** * * MTD * ************************************************************************** */ #ifdef CONFIG_SFC_MTD struct siena_nvram_type_info { int port; const char *name; }; static const struct siena_nvram_type_info siena_nvram_types[] = { [MC_CMD_NVRAM_TYPE_DISABLED_CALLISTO] = { 0, "sfc_dummy_phy" }, [MC_CMD_NVRAM_TYPE_MC_FW] = { 0, "sfc_mcfw" }, [MC_CMD_NVRAM_TYPE_MC_FW_BACKUP] = { 0, "sfc_mcfw_backup" }, [MC_CMD_NVRAM_TYPE_STATIC_CFG_PORT0] = { 0, "sfc_static_cfg" }, [MC_CMD_NVRAM_TYPE_STATIC_CFG_PORT1] = { 1, "sfc_static_cfg" }, [MC_CMD_NVRAM_TYPE_DYNAMIC_CFG_PORT0] = { 0, "sfc_dynamic_cfg" }, [MC_CMD_NVRAM_TYPE_DYNAMIC_CFG_PORT1] = { 1, "sfc_dynamic_cfg" }, [MC_CMD_NVRAM_TYPE_EXP_ROM] = { 0, "sfc_exp_rom" }, [MC_CMD_NVRAM_TYPE_EXP_ROM_CFG_PORT0] = { 0, "sfc_exp_rom_cfg" }, [MC_CMD_NVRAM_TYPE_EXP_ROM_CFG_PORT1] = { 1, "sfc_exp_rom_cfg" }, [MC_CMD_NVRAM_TYPE_PHY_PORT0] = { 0, "sfc_phy_fw" }, [MC_CMD_NVRAM_TYPE_PHY_PORT1] = { 1, "sfc_phy_fw" }, [MC_CMD_NVRAM_TYPE_FPGA] = { 0, "sfc_fpga" }, }; static int siena_mtd_probe_partition(struct efx_nic *efx, struct efx_mcdi_mtd_partition *part, unsigned int type) { const struct siena_nvram_type_info *info; size_t size, erase_size; bool protected; int rc; if (type >= ARRAY_SIZE(siena_nvram_types) || siena_nvram_types[type].name == NULL) return -ENODEV; info = &siena_nvram_types[type]; if (info->port != efx_port_num(efx)) return -ENODEV; rc = efx_mcdi_nvram_info(efx, type, &size, &erase_size, &protected); if (rc) return rc; if (protected) return -ENODEV; /* hide it */ part->nvram_type = type; part->common.dev_type_name = "Siena NVRAM manager"; part->common.type_name = info->name; part->common.mtd.type = MTD_NORFLASH; part->common.mtd.flags = MTD_CAP_NORFLASH; part->common.mtd.size = size; part->common.mtd.erasesize = erase_size; return 0; } static int siena_mtd_get_fw_subtypes(struct efx_nic *efx, struct efx_mcdi_mtd_partition *parts, size_t n_parts) { uint16_t fw_subtype_list[ MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_MAXNUM]; size_t i; int rc; rc = efx_mcdi_get_board_cfg(efx, NULL, fw_subtype_list, NULL); if (rc) return rc; for (i = 0; i < n_parts; i++) parts[i].fw_subtype = fw_subtype_list[parts[i].nvram_type]; return 0; } static int siena_mtd_probe(struct efx_nic *efx) { struct efx_mcdi_mtd_partition *parts; u32 nvram_types; unsigned int type; size_t n_parts; int rc; ASSERT_RTNL(); rc = efx_mcdi_nvram_types(efx, &nvram_types); if (rc) return rc; parts = kcalloc(hweight32(nvram_types), sizeof(*parts), GFP_KERNEL); if (!parts) return -ENOMEM; type = 0; n_parts = 0; while (nvram_types != 0) { if (nvram_types & 1) { rc = siena_mtd_probe_partition(efx, &parts[n_parts], type); if (rc == 0) n_parts++; else if (rc != -ENODEV) goto fail; } type++; nvram_types >>= 1; } rc = siena_mtd_get_fw_subtypes(efx, parts, n_parts); if (rc) goto fail; rc = efx_mtd_add(efx, &parts[0].common, n_parts, sizeof(*parts)); fail: if (rc) kfree(parts); return rc; } #endif /* CONFIG_SFC_MTD */ /************************************************************************** * * Revision-dependent attributes used by efx.c and nic.c * ************************************************************************** */ const struct efx_nic_type siena_a0_nic_type = { .is_vf = false, .mem_bar = siena_mem_bar, .mem_map_size = siena_mem_map_size, .probe = siena_probe_nic, .remove = siena_remove_nic, .init = siena_init_nic, .dimension_resources = siena_dimension_resources, .fini = efx_port_dummy_op_void, #ifdef CONFIG_EEH .monitor = siena_monitor, #else .monitor = NULL, #endif .map_reset_reason = efx_mcdi_map_reset_reason, .map_reset_flags = siena_map_reset_flags, .reset = efx_mcdi_reset, .probe_port = efx_mcdi_port_probe, .remove_port = efx_mcdi_port_remove, .fini_dmaq = efx_farch_fini_dmaq, .prepare_flush = siena_prepare_flush, .finish_flush = siena_finish_flush, .prepare_flr = efx_port_dummy_op_void, .finish_flr = efx_farch_finish_flr, .describe_stats = siena_describe_nic_stats, .update_stats = siena_update_nic_stats, .start_stats = efx_mcdi_mac_start_stats, .pull_stats = efx_mcdi_mac_pull_stats, .stop_stats = efx_mcdi_mac_stop_stats, .set_id_led = efx_mcdi_set_id_led, .push_irq_moderation = siena_push_irq_moderation, .reconfigure_mac = siena_mac_reconfigure, .check_mac_fault = efx_mcdi_mac_check_fault, .reconfigure_port = efx_mcdi_port_reconfigure, .get_wol = siena_get_wol, .set_wol = siena_set_wol, .resume_wol = siena_init_wol, .test_chip = siena_test_chip, .test_nvram = efx_mcdi_nvram_test_all, .mcdi_request = siena_mcdi_request, .mcdi_poll_response = siena_mcdi_poll_response, .mcdi_read_response = siena_mcdi_read_response, .mcdi_poll_reboot = siena_mcdi_poll_reboot, .irq_enable_master = efx_farch_irq_enable_master, .irq_test_generate = efx_farch_irq_test_generate, .irq_disable_non_ev = efx_farch_irq_disable_master, .irq_handle_msi = efx_farch_msi_interrupt, .irq_handle_legacy = efx_farch_legacy_interrupt, .tx_probe = efx_farch_tx_probe, .tx_init = efx_farch_tx_init, .tx_remove = efx_farch_tx_remove, .tx_write = efx_farch_tx_write, .tx_limit_len = efx_farch_tx_limit_len, .rx_push_rss_config = siena_rx_push_rss_config, .rx_pull_rss_config = siena_rx_pull_rss_config, .rx_probe = efx_farch_rx_probe, .rx_init = efx_farch_rx_init, .rx_remove = efx_farch_rx_remove, .rx_write = efx_farch_rx_write, .rx_defer_refill = efx_farch_rx_defer_refill, .ev_probe = efx_farch_ev_probe, .ev_init = efx_farch_ev_init, .ev_fini = efx_farch_ev_fini, .ev_remove = efx_farch_ev_remove, .ev_process = efx_farch_ev_process, .ev_read_ack = efx_farch_ev_read_ack, .ev_test_generate = efx_farch_ev_test_generate, .filter_table_probe = efx_farch_filter_table_probe, .filter_table_restore = efx_farch_filter_table_restore, .filter_table_remove = efx_farch_filter_table_remove, .filter_update_rx_scatter = efx_farch_filter_update_rx_scatter, .filter_insert = efx_farch_filter_insert, .filter_remove_safe = efx_farch_filter_remove_safe, .filter_get_safe = efx_farch_filter_get_safe, .filter_clear_rx = efx_farch_filter_clear_rx, .filter_count_rx_used = efx_farch_filter_count_rx_used, .filter_get_rx_id_limit = efx_farch_filter_get_rx_id_limit, .filter_get_rx_ids = efx_farch_filter_get_rx_ids, #ifdef CONFIG_RFS_ACCEL .filter_rfs_expire_one = efx_farch_filter_rfs_expire_one, #endif #ifdef CONFIG_SFC_MTD .mtd_probe = siena_mtd_probe, .mtd_rename = efx_mcdi_mtd_rename, .mtd_read = efx_mcdi_mtd_read, .mtd_erase = efx_mcdi_mtd_erase, .mtd_write = efx_mcdi_mtd_write, .mtd_sync = efx_mcdi_mtd_sync, #endif .ptp_write_host_time = siena_ptp_write_host_time, .ptp_set_ts_config = siena_ptp_set_ts_config, #ifdef CONFIG_SFC_SRIOV .sriov_configure = efx_siena_sriov_configure, .sriov_init = efx_siena_sriov_init, .sriov_fini = efx_siena_sriov_fini, .sriov_wanted = efx_siena_sriov_wanted, .sriov_reset = efx_siena_sriov_reset, .sriov_flr = efx_siena_sriov_flr, .sriov_set_vf_mac = efx_siena_sriov_set_vf_mac, .sriov_set_vf_vlan = efx_siena_sriov_set_vf_vlan, .sriov_set_vf_spoofchk = efx_siena_sriov_set_vf_spoofchk, .sriov_get_vf_config = efx_siena_sriov_get_vf_config, .vswitching_probe = efx_port_dummy_op_int, .vswitching_restore = efx_port_dummy_op_int, .vswitching_remove = efx_port_dummy_op_void, .set_mac_address = efx_siena_sriov_mac_address_changed, #endif .revision = EFX_REV_SIENA_A0, .txd_ptr_tbl_base = FR_BZ_TX_DESC_PTR_TBL, .rxd_ptr_tbl_base = FR_BZ_RX_DESC_PTR_TBL, .buf_tbl_base = FR_BZ_BUF_FULL_TBL, .evq_ptr_tbl_base = FR_BZ_EVQ_PTR_TBL, .evq_rptr_tbl_base = FR_BZ_EVQ_RPTR, .max_dma_mask = DMA_BIT_MASK(FSF_AZ_TX_KER_BUF_ADDR_WIDTH), .rx_prefix_size = FS_BZ_RX_PREFIX_SIZE, .rx_hash_offset = FS_BZ_RX_PREFIX_HASH_OFST, .rx_buffer_padding = 0, .can_rx_scatter = true, .option_descriptors = false, .min_interrupt_mode = EFX_INT_MODE_LEGACY, .max_interrupt_mode = EFX_INT_MODE_MSIX, .timer_period_max = 1 << FRF_CZ_TC_TIMER_VAL_WIDTH, .offload_features = (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXHASH | NETIF_F_NTUPLE), .mcdi_max_ver = 1, .max_rx_ip_filters = FR_BZ_RX_FILTER_TBL0_ROWS, .hwtstamp_filters = (1 << HWTSTAMP_FILTER_NONE | 1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT | 1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT), .rx_hash_key_size = 16, };