/**************************************************************************** * Driver for Solarflare Solarstorm network controllers and boards * Copyright 2005-2006 Fen Systems Ltd. * Copyright 2006-2010 Solarflare Communications Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published * by the Free Software Foundation, incorporated herein by reference. */ #include #include #include #include #include #include #include "net_driver.h" #include "bitfield.h" #include "efx.h" #include "nic.h" #include "spi.h" #include "regs.h" #include "io.h" #include "phy.h" #include "workarounds.h" #include "mcdi.h" #include "mcdi_pcol.h" #include "selftest.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) { efx_dword_t timer_cmd; if (channel->irq_moderation) EFX_POPULATE_DWORD_2(timer_cmd, FRF_CZ_TC_TIMER_MODE, FFE_CZ_TIMER_MODE_INT_HLDOFF, FRF_CZ_TC_TIMER_VAL, channel->irq_moderation - 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_nic_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_nic_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; } /************************************************************************** * * 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 = of_node_to_eeh_dev(pci_device_to_OF_node(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 */ return rc; } static void 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_nic_dimension_resources(efx, FR_CZ_BUF_FULL_TBL_ROWS / 2); } static int siena_probe_nic(struct efx_nic *efx) { struct siena_nic_data *nic_data; bool already_attached = false; 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; efx->nic_data = nic_data; if (efx_nic_fpga_ver(efx) != 0) { netif_err(efx, probe, efx->net_dev, "Siena FPGA not supported\n"); rc = -ENODEV; goto fail1; } 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; /* Let the BMC know that the driver is now in charge of link and * filter settings. We must do this before we reset the NIC */ rc = efx_mcdi_drv_attach(efx, true, &already_attached); if (rc) { netif_err(efx, probe, efx->net_dev, "Unable to register driver with MCPU\n"); goto fail2; } if (already_attached) /* Not a fatal error */ netif_err(efx, probe, efx->net_dev, "Host already registered with MCPU\n"); /* 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; efx_sriov_probe(efx); efx_ptp_probe(efx); return 0; fail5: efx_nic_free_buffer(efx, &efx->irq_status); fail4: fail3: efx_mcdi_drv_attach(efx, false, NULL); fail2: efx_mcdi_fini(efx); fail1: kfree(efx->nic_data); return rc; } /* 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); /* Set hash key for IPv4 */ memcpy(&temp, efx->rx_hash_key, sizeof(temp)); efx_writeo(efx, &temp, FR_BZ_RX_RSS_TKEY); /* Enable IPv6 RSS */ BUILD_BUG_ON(sizeof(efx->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->rx_hash_key, sizeof(temp)); efx_writeo(efx, &temp, FR_CZ_RX_RSS_IPV6_REG1); memcpy(&temp, efx->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->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); /* 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_nic_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); /* Relinquish the device back to the BMC */ efx_mcdi_drv_attach(efx, false, NULL); /* Tear down the private nic state */ kfree(efx->nic_data); efx->nic_data = NULL; efx_mcdi_fini(efx); } static int siena_try_update_nic_stats(struct efx_nic *efx) { __le64 *dma_stats; struct efx_mac_stats *mac_stats; __le64 generation_start, generation_end; mac_stats = &efx->mac_stats; dma_stats = efx->stats_buffer.addr; generation_end = dma_stats[MC_CMD_MAC_GENERATION_END]; if (generation_end == EFX_MC_STATS_GENERATION_INVALID) return 0; rmb(); #define MAC_STAT(M, D) \ mac_stats->M = le64_to_cpu(dma_stats[MC_CMD_MAC_ ## D]) MAC_STAT(tx_bytes, TX_BYTES); MAC_STAT(tx_bad_bytes, TX_BAD_BYTES); efx_update_diff_stat(&mac_stats->tx_good_bytes, mac_stats->tx_bytes - mac_stats->tx_bad_bytes); MAC_STAT(tx_packets, TX_PKTS); MAC_STAT(tx_bad, TX_BAD_FCS_PKTS); MAC_STAT(tx_pause, TX_PAUSE_PKTS); MAC_STAT(tx_control, TX_CONTROL_PKTS); MAC_STAT(tx_unicast, TX_UNICAST_PKTS); MAC_STAT(tx_multicast, TX_MULTICAST_PKTS); MAC_STAT(tx_broadcast, TX_BROADCAST_PKTS); MAC_STAT(tx_lt64, TX_LT64_PKTS); MAC_STAT(tx_64, TX_64_PKTS); MAC_STAT(tx_65_to_127, TX_65_TO_127_PKTS); MAC_STAT(tx_128_to_255, TX_128_TO_255_PKTS); MAC_STAT(tx_256_to_511, TX_256_TO_511_PKTS); MAC_STAT(tx_512_to_1023, TX_512_TO_1023_PKTS); MAC_STAT(tx_1024_to_15xx, TX_1024_TO_15XX_PKTS); MAC_STAT(tx_15xx_to_jumbo, TX_15XX_TO_JUMBO_PKTS); MAC_STAT(tx_gtjumbo, TX_GTJUMBO_PKTS); mac_stats->tx_collision = 0; MAC_STAT(tx_single_collision, TX_SINGLE_COLLISION_PKTS); MAC_STAT(tx_multiple_collision, TX_MULTIPLE_COLLISION_PKTS); MAC_STAT(tx_excessive_collision, TX_EXCESSIVE_COLLISION_PKTS); MAC_STAT(tx_deferred, TX_DEFERRED_PKTS); MAC_STAT(tx_late_collision, TX_LATE_COLLISION_PKTS); mac_stats->tx_collision = (mac_stats->tx_single_collision + mac_stats->tx_multiple_collision + mac_stats->tx_excessive_collision + mac_stats->tx_late_collision); MAC_STAT(tx_excessive_deferred, TX_EXCESSIVE_DEFERRED_PKTS); MAC_STAT(tx_non_tcpudp, TX_NON_TCPUDP_PKTS); MAC_STAT(tx_mac_src_error, TX_MAC_SRC_ERR_PKTS); MAC_STAT(tx_ip_src_error, TX_IP_SRC_ERR_PKTS); MAC_STAT(rx_bytes, RX_BYTES); MAC_STAT(rx_bad_bytes, RX_BAD_BYTES); efx_update_diff_stat(&mac_stats->rx_good_bytes, mac_stats->rx_bytes - mac_stats->rx_bad_bytes); MAC_STAT(rx_packets, RX_PKTS); MAC_STAT(rx_good, RX_GOOD_PKTS); MAC_STAT(rx_bad, RX_BAD_FCS_PKTS); MAC_STAT(rx_pause, RX_PAUSE_PKTS); MAC_STAT(rx_control, RX_CONTROL_PKTS); MAC_STAT(rx_unicast, RX_UNICAST_PKTS); MAC_STAT(rx_multicast, RX_MULTICAST_PKTS); MAC_STAT(rx_broadcast, RX_BROADCAST_PKTS); MAC_STAT(rx_lt64, RX_UNDERSIZE_PKTS); MAC_STAT(rx_64, RX_64_PKTS); MAC_STAT(rx_65_to_127, RX_65_TO_127_PKTS); MAC_STAT(rx_128_to_255, RX_128_TO_255_PKTS); MAC_STAT(rx_256_to_511, RX_256_TO_511_PKTS); MAC_STAT(rx_512_to_1023, RX_512_TO_1023_PKTS); MAC_STAT(rx_1024_to_15xx, RX_1024_TO_15XX_PKTS); MAC_STAT(rx_15xx_to_jumbo, RX_15XX_TO_JUMBO_PKTS); MAC_STAT(rx_gtjumbo, RX_GTJUMBO_PKTS); mac_stats->rx_bad_lt64 = 0; mac_stats->rx_bad_64_to_15xx = 0; mac_stats->rx_bad_15xx_to_jumbo = 0; MAC_STAT(rx_bad_gtjumbo, RX_JABBER_PKTS); MAC_STAT(rx_overflow, RX_OVERFLOW_PKTS); mac_stats->rx_missed = 0; MAC_STAT(rx_false_carrier, RX_FALSE_CARRIER_PKTS); MAC_STAT(rx_symbol_error, RX_SYMBOL_ERROR_PKTS); MAC_STAT(rx_align_error, RX_ALIGN_ERROR_PKTS); MAC_STAT(rx_length_error, RX_LENGTH_ERROR_PKTS); MAC_STAT(rx_internal_error, RX_INTERNAL_ERROR_PKTS); mac_stats->rx_good_lt64 = 0; efx->n_rx_nodesc_drop_cnt = le64_to_cpu(dma_stats[MC_CMD_MAC_RX_NODESC_DROPS]); #undef MAC_STAT rmb(); generation_start = dma_stats[MC_CMD_MAC_GENERATION_START]; if (generation_end != generation_start) return -EAGAIN; return 0; } static void siena_update_nic_stats(struct efx_nic *efx) { 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) return; udelay(100); } /* Use the old values instead */ } 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)); 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_BUG_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) { 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); if (value == MC_STATUS_DWORD_ASSERT) return -EINTR; else return -EIO; } /************************************************************************** * * Revision-dependent attributes used by efx.c and nic.c * ************************************************************************** */ const struct efx_nic_type siena_a0_nic_type = { .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, .prepare_flush = siena_prepare_flush, .finish_flush = siena_finish_flush, .update_stats = siena_update_nic_stats, .start_stats = efx_mcdi_mac_start_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, .revision = EFX_REV_SIENA_A0, .mem_map_size = (FR_CZ_MC_TREG_SMEM + FR_CZ_MC_TREG_SMEM_STEP * FR_CZ_MC_TREG_SMEM_ROWS), .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_buffer_hash_size = 0x10, .rx_buffer_padding = 0, .can_rx_scatter = true, .max_interrupt_mode = EFX_INT_MODE_MSIX, .phys_addr_channels = 32, /* Hardware limit is 64, but the legacy * interrupt handler only supports 32 * channels */ .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), };