diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.c b/drivers/net/ethernet/netronome/nfp/flower/main.c index 8ce20bd38965..c370fbcbcc38 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/main.c +++ b/drivers/net/ethernet/netronome/nfp/flower/main.c @@ -474,8 +474,8 @@ static int nfp_flower_vnic_init(struct nfp_app *app, struct nfp_net *nn) static int nfp_flower_init(struct nfp_app *app) { + u64 version, features, ctx_count, num_mems; const struct nfp_pf *pf = app->pf; - u64 version, features, ctx_count; struct nfp_flower_priv *app_priv; int err; @@ -500,6 +500,23 @@ static int nfp_flower_init(struct nfp_app *app) return err; } + num_mems = nfp_rtsym_read_le(app->pf->rtbl, "CONFIG_FC_HOST_CTX_SPLIT", + &err); + if (err) { + nfp_warn(app->cpp, + "FlowerNIC: unsupported host context memory: %d\n", + err); + err = 0; + num_mems = 1; + } + + if (!FIELD_FIT(NFP_FL_STAT_ID_MU_NUM, num_mems) || !num_mems) { + nfp_warn(app->cpp, + "FlowerNIC: invalid host context memory: %llu\n", + num_mems); + return -EINVAL; + } + ctx_count = nfp_rtsym_read_le(app->pf->rtbl, "CONFIG_FC_HOST_CTX_COUNT", &err); if (err) { @@ -520,6 +537,8 @@ static int nfp_flower_init(struct nfp_app *app) if (!app_priv) return -ENOMEM; + app_priv->total_mem_units = num_mems; + app_priv->active_mem_unit = 0; app_priv->stats_ring_size = roundup_pow_of_two(ctx_count); app->priv = app_priv; app_priv->app = app; @@ -531,7 +550,7 @@ static int nfp_flower_init(struct nfp_app *app) init_waitqueue_head(&app_priv->mtu_conf.wait_q); spin_lock_init(&app_priv->mtu_conf.lock); - err = nfp_flower_metadata_init(app, ctx_count); + err = nfp_flower_metadata_init(app, ctx_count, num_mems); if (err) goto err_free_app_priv; diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.h b/drivers/net/ethernet/netronome/nfp/flower/main.h index b858bac47621..324b7fe3192f 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/main.h +++ b/drivers/net/ethernet/netronome/nfp/flower/main.h @@ -20,6 +20,9 @@ struct nfp_fl_pre_lag; struct net_device; struct nfp_app; +#define NFP_FL_STAT_ID_MU_NUM GENMASK(31, 22) +#define NFP_FL_STAT_ID_STAT GENMASK(21, 0) + #define NFP_FL_STATS_ELEM_RS FIELD_SIZEOF(struct nfp_fl_stats_id, \ init_unalloc) #define NFP_FLOWER_MASK_ENTRY_RS 256 @@ -130,6 +133,8 @@ struct nfp_fl_lag { * @mtu_conf: Configuration of repr MTU value * @nfp_lag: Link aggregation data block * @indr_block_cb_priv: List of priv data passed to indirect block cbs + * @active_mem_unit: Current active memory unit for flower rules + * @total_mem_units: Total number of available memory units for flower rules */ struct nfp_flower_priv { struct nfp_app *app; @@ -163,6 +168,8 @@ struct nfp_flower_priv { struct nfp_mtu_conf mtu_conf; struct nfp_fl_lag nfp_lag; struct list_head indr_block_cb_priv; + unsigned int active_mem_unit; + unsigned int total_mem_units; }; /** @@ -217,7 +224,8 @@ struct nfp_fl_stats_frame { __be64 stats_cookie; }; -int nfp_flower_metadata_init(struct nfp_app *app, u64 host_ctx_count); +int nfp_flower_metadata_init(struct nfp_app *app, u64 host_ctx_count, + unsigned int host_ctx_split); void nfp_flower_metadata_cleanup(struct nfp_app *app); int nfp_flower_setup_tc(struct nfp_app *app, struct net_device *netdev, diff --git a/drivers/net/ethernet/netronome/nfp/flower/metadata.c b/drivers/net/ethernet/netronome/nfp/flower/metadata.c index 573a4400a26c..492837b852b6 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/metadata.c +++ b/drivers/net/ethernet/netronome/nfp/flower/metadata.c @@ -4,6 +4,7 @@ #include #include #include +#include #include #include @@ -52,8 +53,17 @@ static int nfp_get_stats_entry(struct nfp_app *app, u32 *stats_context_id) freed_stats_id = priv->stats_ring_size; /* Check for unallocated entries first. */ if (priv->stats_ids.init_unalloc > 0) { - *stats_context_id = priv->stats_ids.init_unalloc - 1; - priv->stats_ids.init_unalloc--; + if (priv->active_mem_unit == priv->total_mem_units) { + priv->stats_ids.init_unalloc--; + priv->active_mem_unit = 0; + } + + *stats_context_id = + FIELD_PREP(NFP_FL_STAT_ID_STAT, + priv->stats_ids.init_unalloc - 1) | + FIELD_PREP(NFP_FL_STAT_ID_MU_NUM, + priv->active_mem_unit); + priv->active_mem_unit++; return 0; } @@ -381,10 +391,11 @@ const struct rhashtable_params nfp_flower_table_params = { .automatic_shrinking = true, }; -int nfp_flower_metadata_init(struct nfp_app *app, u64 host_ctx_count) +int nfp_flower_metadata_init(struct nfp_app *app, u64 host_ctx_count, + unsigned int host_num_mems) { struct nfp_flower_priv *priv = app->priv; - int err; + int err, stats_size; hash_init(priv->mask_table); @@ -417,10 +428,12 @@ int nfp_flower_metadata_init(struct nfp_app *app, u64 host_ctx_count) if (!priv->stats_ids.free_list.buf) goto err_free_last_used; - priv->stats_ids.init_unalloc = host_ctx_count; + priv->stats_ids.init_unalloc = div_u64(host_ctx_count, host_num_mems); - priv->stats = kvmalloc_array(priv->stats_ring_size, - sizeof(struct nfp_fl_stats), GFP_KERNEL); + stats_size = FIELD_PREP(NFP_FL_STAT_ID_STAT, host_ctx_count) | + FIELD_PREP(NFP_FL_STAT_ID_MU_NUM, host_num_mems - 1); + priv->stats = kvmalloc_array(stats_size, sizeof(struct nfp_fl_stats), + GFP_KERNEL); if (!priv->stats) goto err_free_ring_buf;