diff options
| -rw-r--r-- | drivers/net/ethernet/sfc/ef10.c | 273 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/efx.c | 65 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/efx.h | 12 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/ethtool.c | 153 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/farch.c | 11 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/filter.h | 7 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/net_driver.h | 44 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/nic.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/siena.c | 26 |
9 files changed, 443 insertions, 150 deletions
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c index 75fbf58e421c..e100273b623d 100644 --- a/drivers/net/ethernet/sfc/ef10.c +++ b/drivers/net/ethernet/sfc/ef10.c @@ -28,9 +28,6 @@ enum { EFX_EF10_TEST = 1, EFX_EF10_REFILL, }; - -/* The reserved RSS context value */ -#define EFX_EF10_RSS_CONTEXT_INVALID 0xffffffff /* The maximum size of a shared RSS context */ /* TODO: this should really be from the mcdi protocol export */ #define EFX_EF10_MAX_SHARED_RSS_CONTEXT_SIZE 64UL @@ -697,7 +694,7 @@ static int efx_ef10_probe(struct efx_nic *efx) } nic_data->warm_boot_count = rc; - nic_data->rx_rss_context = EFX_EF10_RSS_CONTEXT_INVALID; + efx->rss_context.context_id = EFX_EF10_RSS_CONTEXT_INVALID; nic_data->vport_id = EVB_PORT_ID_ASSIGNED; @@ -1489,8 +1486,8 @@ static int efx_ef10_init_nic(struct efx_nic *efx) } /* don't fail init if RSS setup doesn't work */ - rc = efx->type->rx_push_rss_config(efx, false, efx->rx_indir_table, NULL); - efx->rss_active = (rc == 0); + rc = efx->type->rx_push_rss_config(efx, false, + efx->rss_context.rx_indir_table, NULL); return 0; } @@ -1507,7 +1504,7 @@ static void efx_ef10_reset_mc_allocations(struct efx_nic *efx) nic_data->must_restore_filters = true; nic_data->must_restore_piobufs = true; efx_ef10_forget_old_piobufs(efx); - nic_data->rx_rss_context = EFX_EF10_RSS_CONTEXT_INVALID; + efx->rss_context.context_id = EFX_EF10_RSS_CONTEXT_INVALID; /* Driver-created vswitches and vports must be re-created */ nic_data->must_probe_vswitching = true; @@ -2703,27 +2700,30 @@ static int efx_ef10_get_rss_flags(struct efx_nic *efx, u32 context, u32 *flags) * Defaults are 4-tuple for TCP and 2-tuple for UDP and other-IP, so we * just need to set the UDP ports flags (for both IP versions). */ -static void efx_ef10_set_rss_flags(struct efx_nic *efx, u32 context) +static void efx_ef10_set_rss_flags(struct efx_nic *efx, + struct efx_rss_context *ctx) { MCDI_DECLARE_BUF(inbuf, MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_LEN); u32 flags; BUILD_BUG_ON(MC_CMD_RSS_CONTEXT_SET_FLAGS_OUT_LEN != 0); - if (efx_ef10_get_rss_flags(efx, context, &flags) != 0) + if (efx_ef10_get_rss_flags(efx, ctx->context_id, &flags) != 0) return; - MCDI_SET_DWORD(inbuf, RSS_CONTEXT_SET_FLAGS_IN_RSS_CONTEXT_ID, context); + MCDI_SET_DWORD(inbuf, RSS_CONTEXT_SET_FLAGS_IN_RSS_CONTEXT_ID, + ctx->context_id); flags |= RSS_MODE_HASH_PORTS << MC_CMD_RSS_CONTEXT_GET_FLAGS_OUT_UDP_IPV4_RSS_MODE_LBN; flags |= RSS_MODE_HASH_PORTS << MC_CMD_RSS_CONTEXT_GET_FLAGS_OUT_UDP_IPV6_RSS_MODE_LBN; MCDI_SET_DWORD(inbuf, RSS_CONTEXT_SET_FLAGS_IN_FLAGS, flags); if (!efx_mcdi_rpc(efx, MC_CMD_RSS_CONTEXT_SET_FLAGS, inbuf, sizeof(inbuf), NULL, 0, NULL)) /* Succeeded, so UDP 4-tuple is now enabled */ - efx->rx_hash_udp_4tuple = true; + ctx->rx_hash_udp_4tuple = true; } -static int efx_ef10_alloc_rss_context(struct efx_nic *efx, u32 *context, - bool exclusive, unsigned *context_size) +static int efx_ef10_alloc_rss_context(struct efx_nic *efx, bool exclusive, + struct efx_rss_context *ctx, + unsigned *context_size) { MCDI_DECLARE_BUF(inbuf, MC_CMD_RSS_CONTEXT_ALLOC_IN_LEN); MCDI_DECLARE_BUF(outbuf, MC_CMD_RSS_CONTEXT_ALLOC_OUT_LEN); @@ -2739,7 +2739,7 @@ static int efx_ef10_alloc_rss_context(struct efx_nic *efx, u32 *context, EFX_EF10_MAX_SHARED_RSS_CONTEXT_SIZE); if (!exclusive && rss_spread == 1) { - *context = EFX_EF10_RSS_CONTEXT_INVALID; + ctx->context_id = EFX_EF10_RSS_CONTEXT_INVALID; if (context_size) *context_size = 1; return 0; @@ -2762,29 +2762,26 @@ static int efx_ef10_alloc_rss_context(struct efx_nic *efx, u32 *context, if (outlen < MC_CMD_RSS_CONTEXT_ALLOC_OUT_LEN) return -EIO; - *context = MCDI_DWORD(outbuf, RSS_CONTEXT_ALLOC_OUT_RSS_CONTEXT_ID); + ctx->context_id = MCDI_DWORD(outbuf, RSS_CONTEXT_ALLOC_OUT_RSS_CONTEXT_ID); if (context_size) *context_size = rss_spread; if (nic_data->datapath_caps & 1 << MC_CMD_GET_CAPABILITIES_OUT_ADDITIONAL_RSS_MODES_LBN) - efx_ef10_set_rss_flags(efx, *context); + efx_ef10_set_rss_flags(efx, ctx); return 0; } -static void efx_ef10_free_rss_context(struct efx_nic *efx, u32 context) +static int efx_ef10_free_rss_context(struct efx_nic *efx, u32 context) { MCDI_DECLARE_BUF(inbuf, MC_CMD_RSS_CONTEXT_FREE_IN_LEN); - int rc; MCDI_SET_DWORD(inbuf, RSS_CONTEXT_FREE_IN_RSS_CONTEXT_ID, context); - - rc = efx_mcdi_rpc(efx, MC_CMD_RSS_CONTEXT_FREE, inbuf, sizeof(inbuf), + return efx_mcdi_rpc(efx, MC_CMD_RSS_CONTEXT_FREE, inbuf, sizeof(inbuf), NULL, 0, NULL); - WARN_ON(rc != 0); } static int efx_ef10_populate_rss_table(struct efx_nic *efx, u32 context, @@ -2796,15 +2793,15 @@ static int efx_ef10_populate_rss_table(struct efx_nic *efx, u32 context, MCDI_SET_DWORD(tablebuf, RSS_CONTEXT_SET_TABLE_IN_RSS_CONTEXT_ID, context); - BUILD_BUG_ON(ARRAY_SIZE(efx->rx_indir_table) != + BUILD_BUG_ON(ARRAY_SIZE(efx->rss_context.rx_indir_table) != MC_CMD_RSS_CONTEXT_SET_TABLE_IN_INDIRECTION_TABLE_LEN); - /* This iterates over the length of efx->rx_indir_table, but copies - * bytes from rx_indir_table. That's because the latter is a pointer - * rather than an array, but should have the same length. - * The efx->rx_hash_key loop below is similar. + /* This iterates over the length of efx->rss_context.rx_indir_table, but + * copies bytes from rx_indir_table. That's because the latter is a + * pointer rather than an array, but should have the same length. + * The efx->rss_context.rx_hash_key loop below is similar. */ - for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); ++i) + for (i = 0; i < ARRAY_SIZE(efx->rss_context.rx_indir_table); ++i) MCDI_PTR(tablebuf, RSS_CONTEXT_SET_TABLE_IN_INDIRECTION_TABLE)[i] = (u8) rx_indir_table[i]; @@ -2816,9 +2813,9 @@ static int efx_ef10_populate_rss_table(struct efx_nic *efx, u32 context, MCDI_SET_DWORD(keybuf, RSS_CONTEXT_SET_KEY_IN_RSS_CONTEXT_ID, context); - BUILD_BUG_ON(ARRAY_SIZE(efx->rx_hash_key) != + BUILD_BUG_ON(ARRAY_SIZE(efx->rss_context.rx_hash_key) != MC_CMD_RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY_LEN); - for (i = 0; i < ARRAY_SIZE(efx->rx_hash_key); ++i) + for (i = 0; i < ARRAY_SIZE(efx->rss_context.rx_hash_key); ++i) MCDI_PTR(keybuf, RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY)[i] = key[i]; return efx_mcdi_rpc(efx, MC_CMD_RSS_CONTEXT_SET_KEY, keybuf, @@ -2827,27 +2824,27 @@ static int efx_ef10_populate_rss_table(struct efx_nic *efx, u32 context, static void efx_ef10_rx_free_indir_table(struct efx_nic *efx) { - struct efx_ef10_nic_data *nic_data = efx->nic_data; + int rc; - if (nic_data->rx_rss_context != EFX_EF10_RSS_CONTEXT_INVALID) - efx_ef10_free_rss_context(efx, nic_data->rx_rss_context); - nic_data->rx_rss_context = EFX_EF10_RSS_CONTEXT_INVALID; + if (efx->rss_context.context_id != EFX_EF10_RSS_CONTEXT_INVALID) { + rc = efx_ef10_free_rss_context(efx, efx->rss_context.context_id); + WARN_ON(rc != 0); + } + efx->rss_context.context_id = EFX_EF10_RSS_CONTEXT_INVALID; } static int efx_ef10_rx_push_shared_rss_config(struct efx_nic *efx, unsigned *context_size) { - u32 new_rx_rss_context; struct efx_ef10_nic_data *nic_data = efx->nic_data; - int rc = efx_ef10_alloc_rss_context(efx, &new_rx_rss_context, - false, context_size); + int rc = efx_ef10_alloc_rss_context(efx, false, &efx->rss_context, + context_size); if (rc != 0) return rc; - nic_data->rx_rss_context = new_rx_rss_context; nic_data->rx_rss_context_exclusive = false; - efx_set_default_rx_indir_table(efx); + efx_set_default_rx_indir_table(efx, &efx->rss_context); return 0; } @@ -2855,50 +2852,79 @@ static int efx_ef10_rx_push_exclusive_rss_config(struct efx_nic *efx, const u32 *rx_indir_table, const u8 *key) { + u32 old_rx_rss_context = efx->rss_context.context_id; struct efx_ef10_nic_data *nic_data = efx->nic_data; int rc; - u32 new_rx_rss_context; - if (nic_data->rx_rss_context == EFX_EF10_RSS_CONTEXT_INVALID || + if (efx->rss_context.context_id == EFX_EF10_RSS_CONTEXT_INVALID || !nic_data->rx_rss_context_exclusive) { - rc = efx_ef10_alloc_rss_context(efx, &new_rx_rss_context, - true, NULL); + rc = efx_ef10_alloc_rss_context(efx, true, &efx->rss_context, + NULL); if (rc == -EOPNOTSUPP) return rc; else if (rc != 0) goto fail1; - } else { - new_rx_rss_context = nic_data->rx_rss_context; } - rc = efx_ef10_populate_rss_table(efx, new_rx_rss_context, + rc = efx_ef10_populate_rss_table(efx, efx->rss_context.context_id, rx_indir_table, key); if (rc != 0) goto fail2; - if (nic_data->rx_rss_context != new_rx_rss_context) - efx_ef10_rx_free_indir_table(efx); - nic_data->rx_rss_context = new_rx_rss_context; + if (efx->rss_context.context_id != old_rx_rss_context && + old_rx_rss_context != EFX_EF10_RSS_CONTEXT_INVALID) + WARN_ON(efx_ef10_free_rss_context(efx, old_rx_rss_context) != 0); nic_data->rx_rss_context_exclusive = true; - if (rx_indir_table != efx->rx_indir_table) - memcpy(efx->rx_indir_table, rx_indir_table, - sizeof(efx->rx_indir_table)); - if (key != efx->rx_hash_key) - memcpy(efx->rx_hash_key, key, efx->type->rx_hash_key_size); + if (rx_indir_table != efx->rss_context.rx_indir_table) + memcpy(efx->rss_context.rx_indir_table, rx_indir_table, + sizeof(efx->rss_context.rx_indir_table)); + if (key != efx->rss_context.rx_hash_key) + memcpy(efx->rss_context.rx_hash_key, key, + efx->type->rx_hash_key_size); return 0; fail2: - if (new_rx_rss_context != nic_data->rx_rss_context) - efx_ef10_free_rss_context(efx, new_rx_rss_context); + if (old_rx_rss_context != efx->rss_context.context_id) { + WARN_ON(efx_ef10_free_rss_context(efx, efx->rss_context.context_id) != 0); + efx->rss_context.context_id = old_rx_rss_context; + } fail1: netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); return rc; } -static int efx_ef10_rx_pull_rss_config(struct efx_nic *efx) +static int efx_ef10_rx_push_rss_context_config(struct efx_nic *efx, + struct efx_rss_context *ctx, + const u32 *rx_indir_table, + const u8 *key) +{ + int rc; + + if (ctx->context_id == EFX_EF10_RSS_CONTEXT_INVALID) { + rc = efx_ef10_alloc_rss_context(efx, true, ctx, NULL); + if (rc) + return rc; + } + + if (!rx_indir_table) /* Delete this context */ + return efx_ef10_free_rss_context(efx, ctx->context_id); + + rc = efx_ef10_populate_rss_table(efx, ctx->context_id, + rx_indir_table, key); + if (rc) + return rc; + + memcpy(ctx->rx_indir_table, rx_indir_table, + sizeof(efx->rss_context.rx_indir_table)); + memcpy(ctx->rx_hash_key, key, efx->type->rx_hash_key_size); + + return 0; +} + +static int efx_ef10_rx_pull_rss_context_config(struct efx_nic *efx, + struct efx_rss_context *ctx) { - struct efx_ef10_nic_data *nic_data = efx->nic_data; MCDI_DECLARE_BUF(inbuf, MC_CMD_RSS_CONTEXT_GET_TABLE_IN_LEN); MCDI_DECLARE_BUF(tablebuf, MC_CMD_RSS_CONTEXT_GET_TABLE_OUT_LEN); MCDI_DECLARE_BUF(keybuf, MC_CMD_RSS_CONTEXT_GET_KEY_OUT_LEN); @@ -2908,12 +2934,12 @@ static int efx_ef10_rx_pull_rss_config(struct efx_nic *efx) BUILD_BUG_ON(MC_CMD_RSS_CONTEXT_GET_TABLE_IN_LEN != MC_CMD_RSS_CONTEXT_GET_KEY_IN_LEN); - if (nic_data->rx_rss_context == EFX_EF10_RSS_CONTEXT_INVALID) + if (ctx->context_id == EFX_EF10_RSS_CONTEXT_INVALID) return -ENOENT; MCDI_SET_DWORD(inbuf, RSS_CONTEXT_GET_TABLE_IN_RSS_CONTEXT_ID, - nic_data->rx_rss_context); - BUILD_BUG_ON(ARRAY_SIZE(efx->rx_indir_table) != + ctx->context_id); + BUILD_BUG_ON(ARRAY_SIZE(ctx->rx_indir_table) != MC_CMD_RSS_CONTEXT_GET_TABLE_OUT_INDIRECTION_TABLE_LEN); rc = efx_mcdi_rpc(efx, MC_CMD_RSS_CONTEXT_GET_TABLE, inbuf, sizeof(inbuf), tablebuf, sizeof(tablebuf), &outlen); @@ -2923,13 +2949,13 @@ static int efx_ef10_rx_pull_rss_config(struct efx_nic *efx) if (WARN_ON(outlen != MC_CMD_RSS_CONTEXT_GET_TABLE_OUT_LEN)) return -EIO; - for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); i++) - efx->rx_indir_table[i] = MCDI_PTR(tablebuf, + for (i = 0; i < ARRAY_SIZE(ctx->rx_indir_table); i++) + ctx->rx_indir_table[i] = MCDI_PTR(tablebuf, RSS_CONTEXT_GET_TABLE_OUT_INDIRECTION_TABLE)[i]; MCDI_SET_DWORD(inbuf, RSS_CONTEXT_GET_KEY_IN_RSS_CONTEXT_ID, - nic_data->rx_rss_context); - BUILD_BUG_ON(ARRAY_SIZE(efx->rx_hash_key) != + ctx->context_id); + BUILD_BUG_ON(ARRAY_SIZE(ctx->rx_hash_key) != MC_CMD_RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY_LEN); rc = efx_mcdi_rpc(efx, MC_CMD_RSS_CONTEXT_GET_KEY, inbuf, sizeof(inbuf), keybuf, sizeof(keybuf), &outlen); @@ -2939,13 +2965,38 @@ static int efx_ef10_rx_pull_rss_config(struct efx_nic *efx) if (WARN_ON(outlen != MC_CMD_RSS_CONTEXT_GET_KEY_OUT_LEN)) return -EIO; - for (i = 0; i < ARRAY_SIZE(efx->rx_hash_key); ++i) - efx->rx_hash_key[i] = MCDI_PTR( + for (i = 0; i < ARRAY_SIZE(ctx->rx_hash_key); ++i) + ctx->rx_hash_key[i] = MCDI_PTR( keybuf, RSS_CONTEXT_GET_KEY_OUT_TOEPLITZ_KEY)[i]; return 0; } +static int efx_ef10_rx_pull_rss_config(struct efx_nic *efx) +{ + return efx_ef10_rx_pull_rss_context_config(efx, &efx->rss_context); +} + +static void efx_ef10_rx_restore_rss_contexts(struct efx_nic *efx) +{ + struct efx_rss_context *ctx; + int rc; + + list_for_each_entry(ctx, &efx->rss_context.list, list) { + /* previous NIC RSS context is gone */ + ctx->context_id = EFX_EF10_RSS_CONTEXT_INVALID; + /* so try to allocate a new one */ + rc = efx_ef10_rx_push_rss_context_config(efx, ctx, + ctx->rx_indir_table, + ctx->rx_hash_key); + if (rc) + netif_warn(efx, probe, efx->net_dev, + "failed to restore RSS context %u, rc=%d" + "; RSS filters may fail to be applied\n", + ctx->user_id, rc); + } +} + static int efx_ef10_pf_rx_push_rss_config(struct efx_nic *efx, bool user, const u32 *rx_indir_table, const u8 *key) @@ -2956,7 +3007,7 @@ static int efx_ef10_pf_rx_push_rss_config(struct efx_nic *efx, bool user, return 0; if (!key) - key = efx->rx_hash_key; + key = efx->rss_context.rx_hash_key; rc = efx_ef10_rx_push_exclusive_rss_config(efx, rx_indir_table, key); @@ -2965,7 +3016,8 @@ static int efx_ef10_pf_rx_push_rss_config(struct efx_nic *efx, bool user, bool mismatch = false; size_t i; - for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table) && !mismatch; + for (i = 0; + i < ARRAY_SIZE(efx->rss_context.rx_indir_table) && !mismatch; i++) mismatch = rx_indir_table[i] != ethtool_rxfh_indir_default(i, efx->rss_spread); @@ -3000,11 +3052,9 @@ static int efx_ef10_vf_rx_push_rss_config(struct efx_nic *efx, bool user, const u8 *key __attribute__ ((unused))) { - struct efx_ef10_nic_data *nic_data = efx->nic_data; - if (user) return -EOPNOTSUPP; - if (nic_data->rx_rss_context != EFX_EF10_RSS_CONTEXT_INVALID) + if (efx->rss_context.context_id != EFX_EF10_RSS_CONTEXT_INVALID) return 0; return efx_ef10_rx_push_shared_rss_config(efx, NULL); } @@ -4109,6 +4159,7 @@ efx_ef10_filter_push_prep_set_match_fields(struct efx_nic *efx, static void efx_ef10_filter_push_prep(struct efx_nic *efx, const struct efx_filter_spec *spec, efx_dword_t *inbuf, u64 handle, + struct efx_rss_context *ctx, bool replacing) { struct efx_ef10_nic_data *nic_data = efx->nic_data; @@ -4116,11 +4167,16 @@ static void efx_ef10_filter_push_prep(struct efx_nic *efx, memset(inbuf, 0, MC_CMD_FILTER_OP_EXT_IN_LEN); - /* Remove RSS flag if we don't have an RSS context. */ - if (flags & EFX_FILTER_FLAG_RX_RSS && - spec->rss_context == EFX_FILTER_RSS_CONTEXT_DEFAULT && - nic_data->rx_rss_context == EFX_EF10_RSS_CONTEXT_INVALID) - flags &= ~EFX_FILTER_FLAG_RX_RSS; + /* If RSS filter, caller better have given us an RSS context */ + if (flags & EFX_FILTER_FLAG_RX_RSS) { + /* We don't have the ability to return an error, so we'll just + * log a warning and disable RSS for the filter. + */ + if (WARN_ON_ONCE(!ctx)) + flags &= ~EFX_FILTER_FLAG_RX_RSS; + else if (WARN_ON_ONCE(ctx->context_id == EFX_EF10_RSS_CONTEXT_INVALID)) + flags &= ~EFX_FILTER_FLAG_RX_RSS; + } if (replacing) { MCDI_SET_DWORD(inbuf, FILTER_OP_IN_OP, @@ -4146,21 +4202,18 @@ static void efx_ef10_filter_push_prep(struct efx_nic *efx, MC_CMD_FILTER_OP_IN_RX_MODE_RSS : MC_CMD_FILTER_OP_IN_RX_MODE_SIMPLE); if (flags & EFX_FILTER_FLAG_RX_RSS) - MCDI_SET_DWORD(inbuf, FILTER_OP_IN_RX_CONTEXT, - spec->rss_context != - EFX_FILTER_RSS_CONTEXT_DEFAULT ? - spec->rss_context : nic_data->rx_rss_context); + MCDI_SET_DWORD(inbuf, FILTER_OP_IN_RX_CONTEXT, ctx->context_id); } static int efx_ef10_filter_push(struct efx_nic *efx, - const struct efx_filter_spec *spec, - u64 *handle, bool replacing) + const struct efx_filter_spec *spec, u64 *handle, + struct efx_rss_context *ctx, bool replacing) { MCDI_DECLARE_BUF(inbuf, MC_CMD_FILTER_OP_EXT_IN_LEN); MCDI_DECLARE_BUF(outbuf, MC_CMD_FILTER_OP_EXT_OUT_LEN); int rc; - efx_ef10_filter_push_prep(efx, spec, inbuf, *handle, replacing); + efx_ef10_filter_push_prep(efx, spec, inbuf, *handle, ctx, replacing); rc = efx_mcdi_rpc(efx, MC_CMD_FILTER_OP, inbuf, sizeof(inbuf), outbuf, sizeof(outbuf), NULL); if (rc == 0) @@ -4252,6 +4305,7 @@ static s32 efx_ef10_filter_insert(struct efx_nic *efx, struct efx_ef10_filter_table *table = efx->filter_state; DECLARE_BITMAP(mc_rem_map, EFX_EF10_FILTER_SEARCH_LIMIT); struct efx_filter_spec *saved_spec; + struct efx_rss_context *ctx = NULL; unsigned int match_pri, hash; unsigned int priv_flags; bool replacing = false; @@ -4275,6 +4329,18 @@ static s32 efx_ef10_filter_insert(struct efx_nic *efx, if (is_mc_recip) bitmap_zero(mc_rem_map, EFX_EF10_FILTER_SEARCH_LIMIT); + if (spec->flags & EFX_FILTER_FLAG_RX_RSS) { + if (spec->rss_context) + ctx = efx_find_rss_context_entry(spec->rss_context, + &efx->rss_context.list); + else + ctx = &efx->rss_context; + if (!ctx) + return -ENOENT; + if (ctx->context_id == EFX_EF10_RSS_CONTEXT_INVALID) + return -EOPNOTSUPP; + } + /* Find any existing filters with the same match tuple or * else a free slot to insert at. If any of them are busy, * we have to wait and retry. @@ -4390,7 +4456,7 @@ found: spin_unlock_bh(&efx->filter_lock); rc = efx_ef10_filter_push(efx, spec, &table->entry[ins_index].handle, - replacing); + ctx, replacing); /* Finalise the software table entry */ spin_lock_bh(&efx->filter_lock); @@ -4534,12 +4600,13 @@ static int efx_ef10_filter_remove_internal(struct efx_nic *efx, new_spec.priority = EFX_FILTER_PRI_AUTO; new_spec.flags = (EFX_FILTER_FLAG_RX | - (efx_rss_enabled(efx) ? + (efx_rss_active(&efx->rss_context) ? EFX_FILTER_FLAG_RX_RSS : 0)); new_spec.dmaq_id = 0; - new_spec.rss_context = EFX_FILTER_RSS_CONTEXT_DEFAULT; + new_spec.rss_context = 0; rc = efx_ef10_filter_push(efx, &new_spec, &table->entry[filter_idx].handle, + &efx->rss_context, true); spin_lock_bh(&efx->filter_lock); @@ -4783,7 +4850,8 @@ static s32 efx_ef10_filter_rfs_insert(struct efx_nic *efx, cookie = replacing << 31 | ins_index << 16 | spec->dmaq_id; efx_ef10_filter_push_prep(efx, spec, inbuf, - table->entry[ins_index].handle, replacing); + table->entry[ins_index].handle, NULL, + replacing); efx_mcdi_rpc_async(efx, MC_CMD_FILTER_OP, inbuf, sizeof(inbuf), MC_CMD_FILTER_OP_OUT_LEN, efx_ef10_filter_rfs_insert_complete, cookie); @@ -5104,6 +5172,7 @@ static void efx_ef10_filter_table_restore(struct efx_nic *efx) unsigned int invalid_filters = 0, failed = 0; struct efx_ef10_filter_vlan *vlan; struct efx_filter_spec *spec; + struct efx_rss_context *ctx; unsigned int filter_idx; u32 mcdi_flags; int match_pri; @@ -5133,17 +5202,34 @@ static void efx_ef10_filter_table_restore(struct efx_nic *efx) invalid_filters++; goto not_restored; } - if (spec->rss_context != EFX_FILTER_RSS_CONTEXT_DEFAULT && - spec->rss_context != nic_data->rx_rss_context) - netif_warn(efx, drv, efx->net_dev, - "Warning: unable to restore a filter with specific RSS context.\n"); + if (spec->rss_context) + ctx = efx_find_rss_context_entry(spec->rss_context, + &efx->rss_context.list); + else + ctx = &efx->rss_context; + if (spec->flags & EFX_FILTER_FLAG_RX_RSS) { + if (!ctx) { + netif_warn(efx, drv, efx->net_dev, + "Warning: unable to restore a filter with nonexistent RSS context %u.\n", + spec->rss_context); + invalid_filters++; + goto not_restored; + } + if (ctx->context_id == EFX_EF10_RSS_CONTEXT_INVALID) { + netif_warn(efx, drv, efx->net_dev, + "Warning: unable to restore a filter with RSS context %u as it was not created.\n", + spec->rss_context); + invalid_filters++; + goto not_restored; + } + } table->entry[filter_idx].spec |= EFX_EF10_FILTER_FLAG_BUSY; spin_unlock_bh(&efx->filter_lock); rc = efx_ef10_filter_push(efx, spec, &table->entry[filter_idx].handle, - false); + ctx, false); if (rc) failed++; spin_lock_bh(&efx->filter_lock); @@ -6784,6 +6870,9 @@ const struct efx_nic_type efx_hunt_a0_nic_type = { .tx_limit_len = efx_ef10_tx_limit_len, .rx_push_rss_config = efx_ef10_pf_rx_push_rss_config, .rx_pull_rss_config = efx_ef10_rx_pull_rss_config, + .rx_push_rss_context_config = efx_ef10_rx_push_rss_context_config, + .rx_pull_rss_context_config = efx_ef10_rx_pull_rss_context_config, + .rx_restore_rss_contexts = efx_ef10_rx_restore_rss_contexts, .rx_probe = efx_ef10_rx_probe, .rx_init = efx_ef10_rx_init, .rx_remove = efx_ef10_rx_remove, diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c index 16757cfc5b29..7321a4cf6f4d 100644 --- a/drivers/net/ethernet/sfc/efx.c +++ b/drivers/net/ethernet/sfc/efx.c @@ -1353,12 +1353,13 @@ static void efx_fini_io(struct efx_nic *efx) pci_disable_device(efx->pci_dev); } -void efx_set_default_rx_indir_table(struct efx_nic *efx) +void efx_set_default_rx_indir_table(struct efx_nic *efx, + struct efx_rss_context *ctx) { size_t i; - for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); i++) - efx->rx_indir_table[i] = + for (i = 0; i < ARRAY_SIZE(ctx->rx_indir_table); i++) + ctx->rx_indir_table[i] = ethtool_rxfh_indir_default(i, efx->rss_spread); } @@ -1739,9 +1740,9 @@ static int efx_probe_nic(struct efx_nic *efx) } while (rc == -EAGAIN); if (efx->n_channels > 1) - netdev_rss_key_fill(&efx->rx_hash_key, - sizeof(efx->rx_hash_key)); - efx_set_default_rx_indir_table(efx); + netdev_rss_key_fill(efx->rss_context.rx_hash_key, + sizeof(efx->rss_context.rx_hash_key)); + efx_set_default_rx_indir_table(efx, &efx->rss_context); netif_set_real_num_tx_queues(efx->net_dev, efx->n_tx_channels); netif_set_real_num_rx_queues(efx->net_dev, efx->n_rx_channels); @@ -2700,6 +2701,8 @@ int efx_reset_up(struct efx_nic *efx, enum reset_type method, bool ok) " VFs may not function\n", rc); #endif + if (efx->type->rx_restore_rss_contexts) + efx->type->rx_restore_rss_contexts(efx); down_read(&efx->filter_sem); efx_restore_filters(efx); up_read(&efx->filter_sem); @@ -3003,6 +3006,7 @@ static int efx_init_struct(struct efx_nic *efx, efx->type->rx_hash_offset - efx->type->rx_prefix_size; efx->rx_packet_ts_offset = efx->type->rx_ts_offset - efx->type->rx_prefix_size; + INIT_LIST_HEAD(&efx->rss_context.list); spin_lock_init(&efx->stats_lock); efx->vi_stride = EFX_DEFAULT_VI_STRIDE; efx->num_mac_stats = MC_CMD_MAC_NSTATS; @@ -3072,6 +3076,55 @@ void efx_update_sw_stats(struct efx_nic *efx, u64 *stats) stats[GENERIC_STAT_rx_noskb_drops] = atomic_read(&efx->n_rx_noskb_drops); } +/* RSS contexts. We're using linked lists and crappy O(n) algorithms, because + * (a) this is an infrequent control-plane operation and (b) n is small (max 64) + */ +struct efx_rss_context *efx_alloc_rss_context_entry(struct list_head *head) +{ + struct efx_rss_context *ctx, *new; + u32 id = 1; /* Don't use zero, that refers to the master RSS context */ + + /* Search for first gap in the numbering */ + list_for_each_entry(ctx, head, list) { + if (ctx->user_id != id) + break; + id++; + /* Check for wrap. If this happens, we have nearly 2^32 + * allocated RSS contexts, which seems unlikely. + */ + if (WARN_ON_ONCE(!id)) + return NULL; + } + + /* Create the new entry */ + new = kmalloc(sizeof(struct efx_rss_context), GFP_KERNEL); + if (!new) + return NULL; + new->context_id = EFX_EF10_RSS_CONTEXT_INVALID; + new->rx_hash_udp_4tuple = false; + + /* Insert the new entry into the gap */ + new->user_id = id; + list_add_tail(&new->list, &ctx->list); + return new; +} + +struct efx_rss_context *efx_find_rss_context_entry(u32 id, struct list_head *head) +{ + struct efx_rss_context *ctx; + + list_for_each_entry(ctx, head, list) + if (ctx->user_id == id) + return ctx; + return NULL; +} + +void efx_free_rss_context_entry(struct efx_rss_context *ctx) +{ + list_del(&ctx->list); + kfree(ctx); +} + /************************************************************************** * * PCI interface diff --git a/drivers/net/ethernet/sfc/efx.h b/drivers/net/ethernet/sfc/efx.h index 0cddc5ad77b1..3429ae3f3b08 100644 --- a/drivers/net/ethernet/sfc/efx.h +++ b/drivers/net/ethernet/sfc/efx.h @@ -34,7 +34,8 @@ extern unsigned int efx_piobuf_size; extern bool efx_separate_tx_channels; /* RX */ -void efx_set_default_rx_indir_table(struct efx_nic *efx); +void efx_set_default_rx_indir_table(struct efx_nic *efx, + struct efx_rss_context *ctx); void efx_rx_config_page_split(struct efx_nic *efx); int efx_probe_rx_queue(struct efx_rx_queue *rx_queue); void efx_remove_rx_queue(struct efx_rx_queue *rx_queue); @@ -182,6 +183,15 @@ static inline void efx_filter_rfs_expire(struct efx_channel *channel) {} #endif bool efx_filter_is_mc_recipient(const struct efx_filter_spec *spec); +/* RSS contexts */ +struct efx_rss_context *efx_alloc_rss_context_entry(struct list_head *list); +struct efx_rss_context *efx_find_rss_context_entry(u32 id, struct list_head *list); +void efx_free_rss_context_entry(struct efx_rss_context *ctx); +static inline bool efx_rss_active(struct efx_rss_context *ctx) +{ + return ctx->context_id != EFX_EF10_RSS_CONTEXT_INVALID; +} + /* Channels */ int efx_channel_dummy_op_int(struct efx_channel *channel); void efx_channel_dummy_op_void(struct efx_channel *channel); diff --git a/drivers/net/ethernet/sfc/ethtool.c b/drivers/net/ethernet/sfc/ethtool.c index 4db2dc2bf52f..64049e71e6e7 100644 --- a/drivers/net/ethernet/sfc/ethtool.c +++ b/drivers/net/ethernet/sfc/ethtool.c @@ -808,7 +808,8 @@ static inline void ip6_fill_mask(__be32 *mask) } static int efx_ethtool_get_class_rule(struct efx_nic *efx, - struct ethtool_rx_flow_spec *rule) + struct ethtool_rx_flow_spec *rule, + u32 *rss_context) { struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; @@ -964,6 +965,11 @@ static int efx_ethtool_get_class_rule(struct efx_nic *efx, rule->m_ext.vlan_tci = htons(0xfff); } + if (spec.flags & EFX_FILTER_FLAG_RX_RSS) { + rule->flow_type |= FLOW_RSS; + *rss_context = spec.rss_context; + } + return rc; } @@ -972,6 +978,8 @@ efx_ethtool_get_rxnfc(struct net_device *net_dev, struct ethtool_rxnfc *info, u32 *rule_locs) { struct efx_nic *efx = netdev_priv(net_dev); + u32 rss_context = 0; + s32 rc; switch (info->cmd) { case ETHTOOL_GRXRINGS: @@ -979,12 +987,20 @@ efx_ethtool_get_rxnfc(struct net_device *net_dev, return 0; case ETHTOOL_GRXFH: { + struct efx_rss_context *ctx = &efx->rss_context; + + if (info->flow_type & FLOW_RSS && info->rss_context) { + ctx = efx_find_rss_context_entry(info->rss_context, + &efx->rss_context.list); + if (!ctx) + return -ENOENT; + } info->data = 0; - if (!efx->rss_active) /* No RSS */ + if (!efx_rss_active(ctx)) /* No RSS */ return 0; - switch (info->flow_type) { + switch (info->flow_type & ~FLOW_RSS) { case UDP_V4_FLOW: - if (efx->rx_hash_udp_4tuple) + if (ctx->rx_hash_udp_4tuple) /* fall through */ case TCP_V4_FLOW: info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; @@ -995,7 +1011,7 @@ efx_ethtool_get_rxnfc(struct net_device *net_dev, info->data |= RXH_IP_SRC | RXH_IP_DST; break; case UDP_V6_FLOW: - if (efx->rx_hash_udp_4tuple) + if (ctx->rx_hash_udp_4tuple) /* fall through */ case TCP_V6_FLOW: info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; @@ -1023,10 +1039,14 @@ efx_ethtool_get_rxnfc(struct net_device *net_dev, case ETHTOOL_GRXCLSRULE: if (efx_filter_get_rx_id_limit(efx) == 0) return -EOPNOTSUPP; - return efx_ethtool_get_class_rule(efx, &info->fs); + rc = efx_ethtool_get_class_rule(efx, &info->fs, &rss_context); + if (rc < 0) + return rc; + if (info->fs.flow_type & FLOW_RSS) + info->rss_context = rss_context; + return 0; - case ETHTOOL_GRXCLSRLALL: { - s32 rc; + case ETHTOOL_GRXCLSRLALL: info->data = efx_filter_get_rx_id_limit(efx); if (info->data == 0) return -EOPNOTSUPP; @@ -1036,7 +1056,6 @@ efx_ethtool_get_rxnfc(struct net_device *net_dev, return rc; info->rule_cnt = rc; return 0; - } default: return -EOPNOTSUPP; @@ -1054,7 +1073,8 @@ static inline bool ip6_mask_is_empty(__be32 mask[4]) } static int efx_ethtool_set_class_rule(struct efx_nic *efx, - struct ethtool_rx_flow_spec *rule) + struct ethtool_rx_flow_spec *rule, + u32 rss_context) { struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; @@ -1066,6 +1086,7 @@ static int efx_ethtool_set_class_rule(struct efx_nic *efx, struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec; struct ethhdr *mac_entry = &rule->h_u.ether_spec; struct ethhdr *mac_mask = &rule->m_u.ether_spec; + enum efx_filter_flags flags = 0; struct efx_filter_spec spec; int rc; @@ -1084,12 +1105,19 @@ static int efx_ethtool_set_class_rule(struct efx_nic *efx, rule->m_ext.data[1])) return -EINVAL; - efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, - efx->rx_scatter ? EFX_FILTER_FLAG_RX_SCATTER : 0, + if (efx->rx_scatter) + flags |= EFX_FILTER_FLAG_RX_SCATTER; + if (rule->flow_type & FLOW_RSS) + flags |= EFX_FILTER_FLAG_RX_RSS; + + efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, flags, (rule->ring_cookie == RX_CLS_FLOW_DISC) ? EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie); - switch (rule->flow_type & ~FLOW_EXT) { + if (rule->flow_type & FLOW_RSS) + spec.rss_context = rss_context; + + switch (rule->flow_type & ~(FLOW_EXT | FLOW_RSS)) { case TCP_V4_FLOW: case UDP_V4_FLOW: spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE | @@ -1265,7 +1293,8 @@ static int efx_ethtool_set_rxnfc(struct net_device *net_dev, switch (info->cmd) { case ETHTOOL_SRXCLSRLINS: - return efx_ethtool_set_class_rule(efx, &info->fs); + return efx_ethtool_set_class_rule(efx, &info->fs, + info->rss_context); case ETHTOOL_SRXCLSRLDEL: return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL, @@ -1280,7 +1309,9 @@ static u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev) { struct efx_nic *efx = netdev_priv(net_dev); - return (efx->n_rx_channels == 1) ? 0 : ARRAY_SIZE(efx->rx_indir_table); + if (efx->n_rx_channels == 1) + return 0; + return ARRAY_SIZE(efx->rss_context.rx_indir_table); } static u32 efx_ethtool_get_rxfh_key_size(struct net_device *net_dev) @@ -1303,9 +1334,11 @@ static int efx_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key, if (hfunc) *hfunc = ETH_RSS_HASH_TOP; if (indir) - memcpy(indir, efx->rx_indir_table, sizeof(efx->rx_indir_table)); + memcpy(indir, efx->rss_context.rx_indir_table, + sizeof(efx->rss_context.rx_indir_table)); if (key) - memcpy(key, efx->rx_hash_key, efx->type->rx_hash_key_size); + memcpy(key, efx->rss_context.rx_hash_key, + efx->type->rx_hash_key_size); return 0; } @@ -1321,13 +1354,93 @@ static int efx_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir, return 0; if (!key) - key = efx->rx_hash_key; + key = efx->rss_context.rx_hash_key; if (!indir) - indir = efx->rx_indir_table; + indir = efx->rss_context.rx_indir_table; return efx->type->rx_push_rss_config(efx, true, indir, key); } +static int efx_ethtool_get_rxfh_context(struct net_device *net_dev, u32 *indir, + u8 *key, u8 *hfunc, u32 rss_context) +{ + struct efx_nic *efx = netdev_priv(net_dev); + struct efx_rss_context *ctx; + int rc; + + if (!efx->type->rx_pull_rss_context_config) + return -EOPNOTSUPP; + ctx = efx_find_rss_context_entry(rss_context, &efx->rss_context.list); + if (!ctx) + return -ENOENT; + rc = efx->type->rx_pull_rss_context_config(efx, ctx); + if (rc) + return rc; + + if (hfunc) + *hfunc = ETH_RSS_HASH_TOP; + if (indir) + memcpy(indir, ctx->rx_indir_table, sizeof(ctx->rx_indir_table)); + if (key) + memcpy(key, ctx->rx_hash_key, efx->type->rx_hash_key_size); + return 0; +} + +static int efx_ethtool_set_rxfh_context(struct net_device *net_dev, + const u32 *indir, const u8 *key, + const u8 hfunc, u32 *rss_context, + bool delete) +{ + struct efx_nic *efx = netdev_priv(net_dev); + struct efx_rss_context *ctx; + bool allocated = false; + int rc; + + if (!efx->type->rx_push_rss_context_config) + return -EOPNOTSUPP; + /* Hash function is Toeplitz, cannot be changed */ + if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) + return -EOPNOTSUPP; + if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) { + if (delete) + /* alloc + delete == Nothing to do */ + return -EINVAL; + ctx = efx_alloc_rss_context_entry(&efx->rss_context.list); + if (!ctx) + return -ENOMEM; + ctx->context_id = EFX_EF10_RSS_CONTEXT_INVALID; + /* Initialise indir table and key to defaults */ + efx_set_default_rx_indir_table(efx, ctx); + netdev_rss_key_fill(ctx->rx_hash_key, sizeof(ctx->rx_hash_key)); + allocated = true; + } else { + ctx = efx_find_rss_context_entry(*rss_context, + &efx->rss_context.list); + if (!ctx) + return -ENOENT; + } + + if (delete) { + /* delete this context */ + rc = efx->type->rx_push_rss_context_config(efx, ctx, NULL, NULL); + if (!rc) + efx_free_rss_context_entry(ctx); + return rc; + } + + if (!key) + key = ctx->rx_hash_key; + if (!indir) + indir = ctx->rx_indir_table; + + rc = efx->type->rx_push_rss_context_config(efx, ctx, indir, key); + if (rc && allocated) + efx_free_rss_context_entry(ctx); + else + *rss_context = ctx->user_id; + return rc; +} + static int efx_ethtool_get_ts_info(struct net_device *net_dev, struct ethtool_ts_info *ts_info) { @@ -1403,6 +1516,8 @@ const struct ethtool_ops efx_ethtool_ops = { .get_rxfh_key_size = efx_ethtool_get_rxfh_key_size, .get_rxfh = efx_ethtool_get_rxfh, .set_rxfh = efx_ethtool_set_rxfh, + .get_rxfh_context = efx_ethtool_get_rxfh_context, + .set_rxfh_context = efx_ethtool_set_rxfh_context, .get_ts_info = efx_ethtool_get_ts_info, .get_module_info = efx_ethtool_get_module_info, .get_module_eeprom = efx_ethtool_get_module_eeprom, diff --git a/drivers/net/ethernet/sfc/farch.c b/drivers/net/ethernet/sfc/farch.c index 266b9bee1f3a..ad001e77d554 100644 --- a/drivers/net/ethernet/sfc/farch.c +++ b/drivers/net/ethernet/sfc/farch.c @@ -1630,12 +1630,12 @@ void efx_farch_rx_push_indir_table(struct efx_nic *efx) size_t i = 0; efx_dword_t dword; - BUILD_BUG_ON(ARRAY_SIZE(efx->rx_indir_table) != + BUILD_BUG_ON(ARRAY_SIZE(efx->rss_context.rx_indir_table) != FR_BZ_RX_INDIRECTION_TBL_ROWS); for (i = 0; i < FR_BZ_RX_INDIRECTION_TBL_ROWS; i++) { EFX_POPULATE_DWORD_1(dword, FRF_BZ_IT_QUEUE, - efx->rx_indir_table[i]); + efx->rss_context.rx_indir_table[i]); efx_writed(efx, &dword, FR_BZ_RX_INDIRECTION_TBL + FR_BZ_RX_INDIRECTION_TBL_STEP * i); @@ -1647,14 +1647,14 @@ void efx_farch_rx_pull_indir_table(struct efx_nic *efx) size_t i = 0; efx_dword_t dword; - BUILD_BUG_ON(ARRAY_SIZE(efx->rx_indir_table) != + BUILD_BUG_ON(ARRAY_SIZE(efx->rss_context.rx_indir_table) != FR_BZ_RX_INDIRECTION_TBL_ROWS); for (i = 0; i < FR_BZ_RX_INDIRECTION_TBL_ROWS; i++) { efx_readd(efx, &dword, FR_BZ_RX_INDIRECTION_TBL + FR_BZ_RX_INDIRECTION_TBL_STEP * i); - efx->rx_indir_table[i] = EFX_DWORD_FIELD(dword, FRF_BZ_IT_QUEUE); + efx->rss_context.rx_indir_table[i] = EFX_DWORD_FIELD(dword, FRF_BZ_IT_QUEUE); } } @@ -2032,8 +2032,7 @@ efx_farch_filter_from_gen_spec(struct efx_farch_filter_spec *spec, { bool is_full = false; - if ((gen_spec->flags & EFX_FILTER_FLAG_RX_RSS) && - gen_spec->rss_context != EFX_FILTER_RSS_CONTEXT_DEFAULT) + if ((gen_spec->flags & EFX_FILTER_FLAG_RX_RSS) && gen_spec->rss_context) return -EINVAL; spec->priority = gen_spec->priority; diff --git a/drivers/net/ethernet/sfc/filter.h b/drivers/net/ethernet/sfc/filter.h index 8189a1cd973f..59021ad6d98d 100644 --- a/drivers/net/ethernet/sfc/filter.h +++ b/drivers/net/ethernet/sfc/filter.h @@ -125,7 +125,9 @@ enum efx_encap_type { * @match_flags: Match type flags, from &enum efx_filter_match_flags * @priority: Priority of the filter, from &enum efx_filter_priority * @flags: Miscellaneous flags, from &enum efx_filter_flags - * @rss_context: RSS context to use, if %EFX_FILTER_FLAG_RX_RSS is set + * @rss_context: RSS context to use, if %EFX_FILTER_FLAG_RX_RSS is set. This + * is a user_id (with 0 meaning the driver/default RSS context), not an + * MCFW context_id. * @dmaq_id: Source/target queue index, or %EFX_FILTER_RX_DMAQ_ID_DROP for * an RX drop filter * @outer_vid: Outer VLAN ID to match, if %EFX_FILTER_MATCH_OUTER_VID is set @@ -173,7 +175,6 @@ struct efx_filter_spec { }; enum { - EFX_FILTER_RSS_CONTEXT_DEFAULT = 0xffffffff, EFX_FILTER_RX_DMAQ_ID_DROP = 0xfff }; @@ -185,7 +186,7 @@ static inline void efx_filter_init_rx(struct efx_filter_spec *spec, memset(spec, 0, sizeof(*spec)); spec->priority = priority; spec->flags = EFX_FILTER_FLAG_RX | flags; - spec->rss_context = EFX_FILTER_RSS_CONTEXT_DEFAULT; + spec->rss_context = 0; spec->dmaq_id = rxq_id; } diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index d20a8660ee48..203d64c88de5 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -704,6 +704,28 @@ union efx_multicast_hash { struct vfdi_status; +/* The reserved RSS context value */ +#define EFX_EF10_RSS_CONTEXT_INVALID 0xffffffff +/** + * struct efx_rss_context - A user-defined RSS context for filtering + * @list: node of linked list on which this struct is stored + * @context_id: the RSS_CONTEXT_ID returned by MC firmware, or + * %EFX_EF10_RSS_CONTEXT_INVALID if this context is not present on the NIC. + * For Siena, 0 if RSS is active, else %EFX_EF10_RSS_CONTEXT_INVALID. + * @user_id: the rss_context ID exposed to userspace over ethtool. + * @rx_hash_udp_4tuple: UDP 4-tuple hashing enabled + * @rx_hash_key: Toeplitz hash key for this RSS context + * @indir_table: Indirection table for this RSS context + */ +struct efx_rss_context { + struct list_head list; + u32 context_id; + u32 user_id; + bool rx_hash_udp_4tuple; + u8 rx_hash_key[40]; + u32 rx_indir_table[128]; +}; + /** * struct efx_nic - an Efx NIC * @name: Device name (net device name or bus id before net device registered) @@ -764,11 +786,9 @@ struct vfdi_status; * (valid only for NICs that set %EFX_RX_PKT_PREFIX_LEN; always negative) * @rx_packet_ts_offset: Offset of timestamp from start of packet data * (valid only if channel->sync_timestamps_enabled; always negative) - * @rx_hash_key: Toeplitz hash key for RSS - * @rx_indir_table: Indirection table for RSS * @rx_scatter: Scatter mode enabled for receives - * @rss_active: RSS enabled on hardware - * @rx_hash_udp_4tuple: UDP 4-tuple hashing enabled + * @rss_context: Main RSS context. Its @list member is the head of the list of + * RSS contexts created by user requests * @int_error_count: Number of internal errors seen recently * @int_error_expire: Time at which error count will be expired * @irq_soft_enabled: Are IRQs soft-enabled? If not, IRQ handler will @@ -909,11 +929,8 @@ struct efx_nic { int rx_packet_hash_offset; int rx_packet_len_offset; int rx_packet_ts_offset; - u8 rx_hash_key[40]; - u32 rx_indir_table[128]; bool rx_scatter; - bool rss_active; - bool rx_hash_udp_4tuple; + struct efx_rss_context rss_context; unsigned int_error_count; unsigned long int_error_expire; @@ -1099,6 +1116,10 @@ struct efx_udp_tunnel { * @tx_write: Write TX descriptors and doorbell * @rx_push_rss_config: Write RSS hash key and indirection table to the NIC * @rx_pull_rss_config: Read RSS hash key and indirection table back from the NIC + * @rx_push_rss_context_config: Write RSS hash key and indirection table for + * user RSS context to the NIC + * @rx_pull_rss_context_config: Read RSS hash key and indirection table for user + * RSS context back from the NIC * @rx_probe: Allocate resources for RX queue * @rx_init: Initialise RX queue on the NIC * @rx_remove: Free resources for RX queue @@ -1237,6 +1258,13 @@ struct efx_nic_type { int (*rx_push_rss_config)(struct efx_nic *efx, bool user, const u32 *rx_indir_table, const u8 *key); int (*rx_pull_rss_config)(struct efx_nic *efx); + int (*rx_push_rss_context_config)(struct efx_nic *efx, + struct efx_rss_context *ctx, + const u32 *rx_indir_table, + const u8 *key); + int (*rx_pull_rss_context_config)(struct efx_nic *efx, + struct efx_rss_context *ctx); + void (*rx_restore_rss_contexts)(struct efx_nic *efx); int (*rx_probe)(struct efx_rx_queue *rx_queue); void (*rx_init)(struct efx_rx_queue *rx_queue); void (*rx_remove)(struct efx_rx_queue *rx_queue); diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h index 6549fc685a48..d080a414e8f2 100644 --- a/drivers/net/ethernet/sfc/nic.h +++ b/drivers/net/ethernet/sfc/nic.h @@ -374,7 +374,6 @@ enum { * @piobuf_size: size of a single PIO buffer * @must_restore_piobufs: Flag: PIO buffers have yet to be restored after MC * reboot - * @rx_rss_context: Firmware handle for our RSS context * @rx_rss_context_exclusive: Whether our RSS context is exclusive or shared * @stats: Hardware statistics * @workaround_35388: Flag: firmware supports workaround for bug 35388 @@ -415,7 +414,6 @@ struct efx_ef10_nic_data { unsigned int piobuf_handle[EF10_TX_PIOBUF_COUNT]; u16 piobuf_size; bool must_restore_piobufs; - u32 rx_rss_context; bool rx_rss_context_exclusive; u64 stats[EF10_STAT_COUNT]; bool workaround_35388; diff --git a/drivers/net/ethernet/sfc/siena.c b/drivers/net/ethernet/sfc/siena.c index ae8645ae4492..18aab25234ba 100644 --- a/drivers/net/ethernet/sfc/siena.c +++ b/drivers/net/ethernet/sfc/siena.c @@ -350,11 +350,11 @@ static int siena_rx_pull_rss_config(struct efx_nic *efx) * siena_rx_push_rss_config, below) */ efx_reado(efx, &temp, FR_CZ_RX_RSS_IPV6_REG1); - memcpy(efx->rx_hash_key, &temp, sizeof(temp)); + memcpy(efx->rss_context.rx_hash_key, &temp, sizeof(temp)); efx_reado(efx, &temp, FR_CZ_RX_RSS_IPV6_REG2); - memcpy(efx->rx_hash_key + sizeof(temp), &temp, sizeof(temp)); + memcpy(efx->rss_context.rx_hash_key + sizeof(temp), &temp, sizeof(temp)); efx_reado(efx, &temp, FR_CZ_RX_RSS_IPV6_REG3); - memcpy(efx->rx_hash_key + 2 * sizeof(temp), &temp, + 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; @@ -367,26 +367,26 @@ static int siena_rx_push_rss_config(struct efx_nic *efx, bool user, /* Set hash key for IPv4 */ if (key) - memcpy(efx->rx_hash_key, key, sizeof(temp)); - memcpy(&temp, efx->rx_hash_key, sizeof(temp)); + 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->rx_hash_key) < + 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->rx_hash_key, sizeof(temp)); + memcpy(&temp, efx->rss_context.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)); + 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->rx_hash_key + 2 * sizeof(temp), + 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->rx_indir_table, rx_indir_table, - sizeof(efx->rx_indir_table)); + 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; @@ -432,8 +432,8 @@ static int siena_init_nic(struct efx_nic *efx) EFX_RX_USR_BUF_SIZE >> 5); efx_writeo(efx, &temp, FR_AZ_RX_CFG); - siena_rx_push_rss_config(efx, false, efx->rx_indir_table, NULL); - efx->rss_active = true; + 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); |