diff options
Diffstat (limited to 'drivers/net/ethernet/sfc/mcdi_filters.h')
| -rw-r--r-- | drivers/net/ethernet/sfc/mcdi_filters.h | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/mcdi_filters.h b/drivers/net/ethernet/sfc/mcdi_filters.h new file mode 100644 index 000000000000..1837f4f5d661 --- /dev/null +++ b/drivers/net/ethernet/sfc/mcdi_filters.h @@ -0,0 +1,159 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/**************************************************************************** + * Driver for Solarflare network controllers and boards + * Copyright 2019 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. + */ +#ifndef EFX_MCDI_FILTERS_H +#define EFX_MCDI_FILTERS_H + +#include "net_driver.h" +#include "filter.h" +#include "mcdi_pcol.h" + +#define EFX_EF10_FILTER_DEV_UC_MAX 32 +#define EFX_EF10_FILTER_DEV_MC_MAX 256 + +enum efx_mcdi_filter_default_filters { + EFX_EF10_BCAST, + EFX_EF10_UCDEF, + EFX_EF10_MCDEF, + EFX_EF10_VXLAN4_UCDEF, + EFX_EF10_VXLAN4_MCDEF, + EFX_EF10_VXLAN6_UCDEF, + EFX_EF10_VXLAN6_MCDEF, + EFX_EF10_NVGRE4_UCDEF, + EFX_EF10_NVGRE4_MCDEF, + EFX_EF10_NVGRE6_UCDEF, + EFX_EF10_NVGRE6_MCDEF, + EFX_EF10_GENEVE4_UCDEF, + EFX_EF10_GENEVE4_MCDEF, + EFX_EF10_GENEVE6_UCDEF, + EFX_EF10_GENEVE6_MCDEF, + + EFX_EF10_NUM_DEFAULT_FILTERS +}; + +/* Per-VLAN filters information */ +struct efx_mcdi_filter_vlan { + struct list_head list; + u16 vid; + u16 uc[EFX_EF10_FILTER_DEV_UC_MAX]; + u16 mc[EFX_EF10_FILTER_DEV_MC_MAX]; + u16 default_filters[EFX_EF10_NUM_DEFAULT_FILTERS]; +}; + +struct efx_mcdi_dev_addr { + u8 addr[ETH_ALEN]; +}; + +struct efx_mcdi_filter_table { +/* The MCDI match masks supported by this fw & hw, in order of priority */ + u32 rx_match_mcdi_flags[ + MC_CMD_GET_PARSER_DISP_INFO_OUT_SUPPORTED_MATCHES_MAXNUM * 2]; + unsigned int rx_match_count; + + struct rw_semaphore lock; /* Protects entries */ + struct { + unsigned long spec; /* pointer to spec plus flag bits */ +/* AUTO_OLD is used to mark and sweep MAC filters for the device address lists. */ +/* unused flag 1UL */ +#define EFX_EF10_FILTER_FLAG_AUTO_OLD 2UL +#define EFX_EF10_FILTER_FLAGS 3UL + u64 handle; /* firmware handle */ + } *entry; +/* Shadow of net_device address lists, guarded by mac_lock */ + struct efx_mcdi_dev_addr dev_uc_list[EFX_EF10_FILTER_DEV_UC_MAX]; + struct efx_mcdi_dev_addr dev_mc_list[EFX_EF10_FILTER_DEV_MC_MAX]; + int dev_uc_count; + int dev_mc_count; + bool uc_promisc; + bool mc_promisc; +/* Whether in multicast promiscuous mode when last changed */ + bool mc_promisc_last; + bool mc_overflow; /* Too many MC addrs; should always imply mc_promisc */ + bool vlan_filter; + struct list_head vlan_list; +}; + +int efx_mcdi_filter_table_probe(struct efx_nic *efx); +void efx_mcdi_filter_table_remove(struct efx_nic *efx); +void efx_mcdi_filter_table_restore(struct efx_nic *efx); + +/* + * The filter table(s) are managed by firmware and we have write-only + * access. When removing filters we must identify them to the + * firmware by a 64-bit handle, but this is too wide for Linux kernel + * interfaces (32-bit for RX NFC, 16-bit for RFS). Also, we need to + * be able to tell in advance whether a requested insertion will + * replace an existing filter. Therefore we maintain a software hash + * table, which should be at least as large as the hardware hash + * table. + * + * Huntington has a single 8K filter table shared between all filter + * types and both ports. + */ +#define EFX_MCDI_FILTER_TBL_ROWS 8192 + +bool efx_mcdi_filter_match_supported(struct efx_mcdi_filter_table *table, + bool encap, + enum efx_filter_match_flags match_flags); + +void efx_mcdi_filter_sync_rx_mode(struct efx_nic *efx); +s32 efx_mcdi_filter_insert(struct efx_nic *efx, struct efx_filter_spec *spec, + bool replace_equal); +int efx_mcdi_filter_remove_safe(struct efx_nic *efx, + enum efx_filter_priority priority, + u32 filter_id); +int efx_mcdi_filter_get_safe(struct efx_nic *efx, + enum efx_filter_priority priority, + u32 filter_id, struct efx_filter_spec *spec); + +u32 efx_mcdi_filter_count_rx_used(struct efx_nic *efx, + enum efx_filter_priority priority); +int efx_mcdi_filter_clear_rx(struct efx_nic *efx, + enum efx_filter_priority priority); +u32 efx_mcdi_filter_get_rx_id_limit(struct efx_nic *efx); +s32 efx_mcdi_filter_get_rx_ids(struct efx_nic *efx, + enum efx_filter_priority priority, + u32 *buf, u32 size); + +void efx_mcdi_filter_cleanup_vlans(struct efx_nic *efx); +int efx_mcdi_filter_add_vlan(struct efx_nic *efx, u16 vid); +struct efx_mcdi_filter_vlan *efx_mcdi_filter_find_vlan(struct efx_nic *efx, u16 vid); +void efx_mcdi_filter_del_vlan(struct efx_nic *efx, u16 vid); + +void efx_mcdi_rx_free_indir_table(struct efx_nic *efx); +int efx_mcdi_rx_push_rss_context_config(struct efx_nic *efx, + struct efx_rss_context *ctx, + const u32 *rx_indir_table, + const u8 *key); +int efx_mcdi_pf_rx_push_rss_config(struct efx_nic *efx, bool user, + const u32 *rx_indir_table, + const u8 *key); +int efx_mcdi_vf_rx_push_rss_config(struct efx_nic *efx, bool user, + const u32 *rx_indir_table + __attribute__ ((unused)), + const u8 *key + __attribute__ ((unused))); +int efx_mcdi_rx_pull_rss_config(struct efx_nic *efx); +int efx_mcdi_rx_pull_rss_context_config(struct efx_nic *efx, + struct efx_rss_context *ctx); +int efx_mcdi_get_rss_context_flags(struct efx_nic *efx, u32 context, + u32 *flags); +void efx_mcdi_set_rss_context_flags(struct efx_nic *efx, + struct efx_rss_context *ctx); +void efx_mcdi_rx_restore_rss_contexts(struct efx_nic *efx); + +static inline void efx_mcdi_update_rx_scatter(struct efx_nic *efx) +{ + /* no need to do anything here */ +} + +bool efx_mcdi_filter_rfs_expire_one(struct efx_nic *efx, u32 flow_id, + unsigned int filter_idx); + +#endif |