diff options
author | Martin Habets <martinh@xilinx.com> | 2022-05-09 18:31:18 +0300 |
---|---|---|
committer | Jakub Kicinski <kuba@kernel.org> | 2022-05-11 01:38:13 +0300 |
commit | 36ff6393292d3b7b3b02007bd7d9a353524ed225 (patch) | |
tree | c053926510c897b52df4c78013822a2946387086 /drivers/net/ethernet/sfc/siena.c | |
parent | 61004d1d4badb5ba31d57d49003c17cfcdfed027 (diff) | |
download | linux-36ff6393292d3b7b3b02007bd7d9a353524ed225.tar.xz |
sfc: Move Siena specific files
Files are only moved, no changes are made.
Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/sfc/siena.c')
-rw-r--r-- | drivers/net/ethernet/sfc/siena.c | 1109 |
1 files changed, 0 insertions, 1109 deletions
diff --git a/drivers/net/ethernet/sfc/siena.c b/drivers/net/ethernet/sfc/siena.c deleted file mode 100644 index ce3060e15b54..000000000000 --- a/drivers/net/ethernet/sfc/siena.c +++ /dev/null @@ -1,1109 +0,0 @@ -// 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 <linux/bitops.h> -#include <linux/delay.h> -#include <linux/pci.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/random.h> -#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.h" -#include "mcdi_port_common.h" -#include "selftest.h" -#include "siena_sriov.h" -#include "rx_common.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_vis = EFX_MAX_CHANNELS; - efx->max_tx_channels = EFX_MAX_CHANNELS; - efx->tx_queues_per_channel = 4; - - 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, bool mtu_only __always_unused) -{ - 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 */ - -static unsigned int siena_check_caps(const struct efx_nic *efx, - u8 flag, u32 offset) -{ - /* Siena did not support MC_CMD_GET_CAPABILITIES */ - return 0; -} - -static unsigned int efx_siena_recycle_ring_size(const struct efx_nic *efx) -{ - /* Maximum link speed is 10G */ - return EFX_RECYCLE_RING_SIZE_10G; -} - -/************************************************************************** - * - * 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, - .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, - .tx_enqueue = __efx_enqueue_skb, - .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, - .rx_packet = __efx_rx_packet, - .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, - .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, - .check_caps = siena_check_caps, - .sensor_event = efx_mcdi_sensor_event, - .rx_recycle_ring_size = efx_siena_recycle_ring_size, -}; |