diff options
author | Tariq Toukan <tariqt@nvidia.com> | 2021-08-16 15:50:24 +0300 |
---|---|---|
committer | Saeed Mahameed <saeedm@nvidia.com> | 2021-08-17 02:17:27 +0300 |
commit | 25307a91cb50a044921705c3b7dc714bee70cbcb (patch) | |
tree | c59af33c8bcb2dd63b5d8fed0ba26a3b40723bd3 | |
parent | 713ba5e5f6896cbdde7ddb339cd8b06eb7c7334a (diff) | |
download | linux-25307a91cb50a044921705c3b7dc714bee70cbcb.tar.xz |
net/mlx5e: Convert RSS to a dedicated object
Code related to RSS is now encapsulated into a dedicated object and put
into new files en/rss.{c,h}. All usages are converted.
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/Makefile | 6 | ||||
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en/rss.c | 488 | ||||
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en/rss.h | 38 | ||||
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.c | 494 | ||||
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.h | 6 |
5 files changed, 604 insertions, 428 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/Makefile index 33e550d77fa6..4fccc9bc0328 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/Makefile +++ b/drivers/net/ethernet/mellanox/mlx5/core/Makefile @@ -22,13 +22,13 @@ mlx5_core-y := main.o cmd.o debugfs.o fw.o eq.o uar.o pagealloc.o \ # # Netdev basic # -mlx5_core-$(CONFIG_MLX5_CORE_EN) += en_main.o en_common.o en_fs.o en_ethtool.o \ +mlx5_core-$(CONFIG_MLX5_CORE_EN) += en/rqt.o en/tir.o en/rss.o en/rx_res.o \ + en/channels.o en_main.o en_common.o en_fs.o en_ethtool.o \ en_tx.o en_rx.o en_dim.o en_txrx.o en/xdp.o en_stats.o \ en_selftest.o en/port.o en/monitor_stats.o en/health.o \ en/reporter_tx.o en/reporter_rx.o en/params.o en/xsk/pool.o \ en/xsk/setup.o en/xsk/rx.o en/xsk/tx.o en/devlink.o en/ptp.o \ - en/qos.o en/trap.o en/fs_tt_redirect.o en/rqt.o en/tir.o \ - en/rx_res.o en/channels.o + en/qos.o en/trap.o en/fs_tt_redirect.o # # Netdev extra diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rss.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rss.c new file mode 100644 index 000000000000..f4a72b6b8a02 --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rss.c @@ -0,0 +1,488 @@ +// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB +// Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. + +#include "rss.h" + +#define mlx5e_rss_warn(__dev, format, ...) \ + dev_warn((__dev)->device, "%s:%d:(pid %d): " format, \ + __func__, __LINE__, current->pid, \ + ##__VA_ARGS__) + +static const struct mlx5e_rss_params_traffic_type rss_default_config[MLX5E_NUM_INDIR_TIRS] = { + [MLX5_TT_IPV4_TCP] = { + .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4, + .l4_prot_type = MLX5_L4_PROT_TYPE_TCP, + .rx_hash_fields = MLX5_HASH_IP_L4PORTS, + }, + [MLX5_TT_IPV6_TCP] = { + .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6, + .l4_prot_type = MLX5_L4_PROT_TYPE_TCP, + .rx_hash_fields = MLX5_HASH_IP_L4PORTS, + }, + [MLX5_TT_IPV4_UDP] = { + .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4, + .l4_prot_type = MLX5_L4_PROT_TYPE_UDP, + .rx_hash_fields = MLX5_HASH_IP_L4PORTS, + }, + [MLX5_TT_IPV6_UDP] = { + .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6, + .l4_prot_type = MLX5_L4_PROT_TYPE_UDP, + .rx_hash_fields = MLX5_HASH_IP_L4PORTS, + }, + [MLX5_TT_IPV4_IPSEC_AH] = { + .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4, + .l4_prot_type = 0, + .rx_hash_fields = MLX5_HASH_IP_IPSEC_SPI, + }, + [MLX5_TT_IPV6_IPSEC_AH] = { + .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6, + .l4_prot_type = 0, + .rx_hash_fields = MLX5_HASH_IP_IPSEC_SPI, + }, + [MLX5_TT_IPV4_IPSEC_ESP] = { + .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4, + .l4_prot_type = 0, + .rx_hash_fields = MLX5_HASH_IP_IPSEC_SPI, + }, + [MLX5_TT_IPV6_IPSEC_ESP] = { + .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6, + .l4_prot_type = 0, + .rx_hash_fields = MLX5_HASH_IP_IPSEC_SPI, + }, + [MLX5_TT_IPV4] = { + .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4, + .l4_prot_type = 0, + .rx_hash_fields = MLX5_HASH_IP, + }, + [MLX5_TT_IPV6] = { + .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6, + .l4_prot_type = 0, + .rx_hash_fields = MLX5_HASH_IP, + }, +}; + +struct mlx5e_rss_params_traffic_type +mlx5e_rss_get_default_tt_config(enum mlx5_traffic_types tt) +{ + return rss_default_config[tt]; +} + +struct mlx5e_rss { + struct mlx5e_rss_params_hash hash; + struct mlx5e_rss_params_indir indir; + u32 rx_hash_fields[MLX5E_NUM_INDIR_TIRS]; + struct mlx5e_tir tir[MLX5E_NUM_INDIR_TIRS]; + struct mlx5e_tir inner_tir[MLX5E_NUM_INDIR_TIRS]; + struct mlx5e_rqt rqt; + struct mlx5_core_dev *mdev; + u32 drop_rqn; + bool inner_ft_support; + bool enabled; +}; + +struct mlx5e_rss *mlx5e_rss_alloc(void) +{ + return kvzalloc(sizeof(struct mlx5e_rss), GFP_KERNEL); +} + +void mlx5e_rss_free(struct mlx5e_rss *rss) +{ + kvfree(rss); +} + +static void mlx5e_rss_params_init(struct mlx5e_rss *rss) +{ + enum mlx5_traffic_types tt; + + rss->hash.hfunc = ETH_RSS_HASH_TOP; + netdev_rss_key_fill(rss->hash.toeplitz_hash_key, + sizeof(rss->hash.toeplitz_hash_key)); + for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) + rss->rx_hash_fields[tt] = + mlx5e_rss_get_default_tt_config(tt).rx_hash_fields; +} + +static struct mlx5e_rss_params_traffic_type +mlx5e_rss_get_tt_config(struct mlx5e_rss *rss, enum mlx5_traffic_types tt) +{ + struct mlx5e_rss_params_traffic_type rss_tt; + + rss_tt = mlx5e_rss_get_default_tt_config(tt); + rss_tt.rx_hash_fields = rss->rx_hash_fields[tt]; + return rss_tt; +} + +static int mlx5e_rss_create_tir(struct mlx5e_rss *rss, + enum mlx5_traffic_types tt, + const struct mlx5e_lro_param *init_lro_param, + bool inner) +{ + struct mlx5e_rss_params_traffic_type rss_tt; + struct mlx5e_tir_builder *builder; + struct mlx5e_tir *tir; + u32 rqtn; + int err; + + if (inner && !rss->inner_ft_support) { + mlx5e_rss_warn(rss->mdev, + "Cannot create inner indirect TIR[%d], RSS inner FT is not supported.\n", + tt); + return -EINVAL; + } + + tir = inner ? &rss->inner_tir[tt] : &rss->tir[tt]; + + builder = mlx5e_tir_builder_alloc(false); + if (!builder) + return -ENOMEM; + + rqtn = mlx5e_rqt_get_rqtn(&rss->rqt); + mlx5e_tir_builder_build_rqt(builder, rss->mdev->mlx5e_res.hw_objs.td.tdn, + rqtn, rss->inner_ft_support); + mlx5e_tir_builder_build_lro(builder, init_lro_param); + rss_tt = mlx5e_rss_get_tt_config(rss, tt); + mlx5e_tir_builder_build_rss(builder, &rss->hash, &rss_tt, inner); + + err = mlx5e_tir_init(tir, builder, rss->mdev, true); + mlx5e_tir_builder_free(builder); + if (err) + mlx5e_rss_warn(rss->mdev, "Failed to create %sindirect TIR: err = %d, tt = %d\n", + inner ? "inner " : "", err, tt); + return err; +} + +static void mlx5e_rss_destroy_tir(struct mlx5e_rss *rss, enum mlx5_traffic_types tt, + bool inner) +{ + struct mlx5e_tir *tir; + + tir = inner ? &rss->inner_tir[tt] : &rss->tir[tt]; + mlx5e_tir_destroy(tir); +} + +static int mlx5e_rss_create_tirs(struct mlx5e_rss *rss, + const struct mlx5e_lro_param *init_lro_param, + bool inner) +{ + enum mlx5_traffic_types tt, max_tt; + int err; + + for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) { + err = mlx5e_rss_create_tir(rss, tt, init_lro_param, inner); + if (err) + goto err_destroy_tirs; + } + + return 0; + +err_destroy_tirs: + max_tt = tt; + for (tt = 0; tt < max_tt; tt++) + mlx5e_rss_destroy_tir(rss, tt, inner); + return err; +} + +static void mlx5e_rss_destroy_tirs(struct mlx5e_rss *rss, bool inner) +{ + enum mlx5_traffic_types tt; + + for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) + mlx5e_rss_destroy_tir(rss, tt, inner); +} + +static int mlx5e_rss_update_tir(struct mlx5e_rss *rss, enum mlx5_traffic_types tt, + bool inner) +{ + struct mlx5e_rss_params_traffic_type rss_tt; + struct mlx5e_tir_builder *builder; + struct mlx5e_tir *tir; + int err; + + tir = inner ? &rss->inner_tir[tt] : &rss->tir[tt]; + + builder = mlx5e_tir_builder_alloc(true); + if (!builder) + return -ENOMEM; + + rss_tt = mlx5e_rss_get_tt_config(rss, tt); + + mlx5e_tir_builder_build_rss(builder, &rss->hash, &rss_tt, inner); + err = mlx5e_tir_modify(tir, builder); + + mlx5e_tir_builder_free(builder); + return err; +} + +static int mlx5e_rss_update_tirs(struct mlx5e_rss *rss) +{ + enum mlx5_traffic_types tt; + int err, retval; + + retval = 0; + + for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) { + err = mlx5e_rss_update_tir(rss, tt, false); + if (err) { + retval = retval ? : err; + mlx5e_rss_warn(rss->mdev, + "Failed to update RSS hash of indirect TIR for traffic type %d: err = %d\n", + tt, err); + } + + if (!rss->inner_ft_support) + continue; + + err = mlx5e_rss_update_tir(rss, tt, true); + if (err) { + retval = retval ? : err; + mlx5e_rss_warn(rss->mdev, + "Failed to update RSS hash of inner indirect TIR for traffic type %d: err = %d\n", + tt, err); + } + } + return retval; +} + +int mlx5e_rss_init(struct mlx5e_rss *rss, struct mlx5_core_dev *mdev, + bool inner_ft_support, u32 drop_rqn, + const struct mlx5e_lro_param *init_lro_param) +{ + int err; + + rss->mdev = mdev; + rss->inner_ft_support = inner_ft_support; + rss->drop_rqn = drop_rqn; + + mlx5e_rss_params_init(rss); + + err = mlx5e_rqt_init_direct(&rss->rqt, mdev, true, drop_rqn); + if (err) + goto err_out; + + err = mlx5e_rss_create_tirs(rss, init_lro_param, false); + if (err) + goto err_destroy_rqt; + + if (inner_ft_support) { + err = mlx5e_rss_create_tirs(rss, init_lro_param, true); + if (err) + goto err_destroy_tirs; + } + + return 0; + +err_destroy_tirs: + mlx5e_rss_destroy_tirs(rss, false); +err_destroy_rqt: + mlx5e_rqt_destroy(&rss->rqt); +err_out: + return err; +} + +void mlx5e_rss_cleanup(struct mlx5e_rss *rss) +{ + mlx5e_rss_destroy_tirs(rss, false); + + if (rss->inner_ft_support) + mlx5e_rss_destroy_tirs(rss, true); + + mlx5e_rqt_destroy(&rss->rqt); +} + +u32 mlx5e_rss_get_tirn(struct mlx5e_rss *rss, enum mlx5_traffic_types tt, + bool inner) +{ + struct mlx5e_tir *tir; + + WARN_ON(inner && !rss->inner_ft_support); + tir = inner ? &rss->inner_tir[tt] : &rss->tir[tt]; + + return mlx5e_tir_get_tirn(tir); +} + +static void mlx5e_rss_apply(struct mlx5e_rss *rss, u32 *rqns, unsigned int num_rqns) +{ + int err; + + err = mlx5e_rqt_redirect_indir(&rss->rqt, rqns, num_rqns, rss->hash.hfunc, &rss->indir); + if (err) + mlx5e_rss_warn(rss->mdev, "Failed to redirect RQT %#x to channels: err = %d\n", + mlx5e_rqt_get_rqtn(&rss->rqt), err); +} + +void mlx5e_rss_enable(struct mlx5e_rss *rss, u32 *rqns, unsigned int num_rqns) +{ + rss->enabled = true; + mlx5e_rss_apply(rss, rqns, num_rqns); +} + +void mlx5e_rss_disable(struct mlx5e_rss *rss) +{ + int err; + + rss->enabled = false; + err = mlx5e_rqt_redirect_direct(&rss->rqt, rss->drop_rqn); + if (err) + mlx5e_rss_warn(rss->mdev, "Failed to redirect RQT %#x to drop RQ %#x: err = %d\n", + mlx5e_rqt_get_rqtn(&rss->rqt), rss->drop_rqn, err); +} + +int mlx5e_rss_lro_set_param(struct mlx5e_rss *rss, struct mlx5e_lro_param *lro_param) +{ + struct mlx5e_tir_builder *builder; + enum mlx5_traffic_types tt; + int err, final_err; + + builder = mlx5e_tir_builder_alloc(true); + if (!builder) + return -ENOMEM; + + mlx5e_tir_builder_build_lro(builder, lro_param); + + final_err = 0; + + for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) { + err = mlx5e_tir_modify(&rss->tir[tt], builder); + if (err) { + mlx5e_rss_warn(rss->mdev, "Failed to update LRO state of indirect TIR %#x for traffic type %d: err = %d\n", + mlx5e_tir_get_tirn(&rss->tir[tt]), tt, err); + if (!final_err) + final_err = err; + } + + if (!rss->inner_ft_support) + continue; + + err = mlx5e_tir_modify(&rss->inner_tir[tt], builder); + if (err) { + mlx5e_rss_warn(rss->mdev, "Failed to update LRO state of inner indirect TIR %#x for traffic type %d: err = %d\n", + mlx5e_tir_get_tirn(&rss->inner_tir[tt]), tt, err); + if (!final_err) + final_err = err; + } + } + + mlx5e_tir_builder_free(builder); + return final_err; +} + +int mlx5e_rss_get_rxfh(struct mlx5e_rss *rss, u32 *indir, u8 *key, u8 *hfunc) +{ + unsigned int i; + + if (indir) + for (i = 0; i < MLX5E_INDIR_RQT_SIZE; i++) + indir[i] = rss->indir.table[i]; + + if (key) + memcpy(key, rss->hash.toeplitz_hash_key, + sizeof(rss->hash.toeplitz_hash_key)); + + if (hfunc) + *hfunc = rss->hash.hfunc; + + return 0; +} + +int mlx5e_rss_set_rxfh(struct mlx5e_rss *rss, const u32 *indir, + const u8 *key, const u8 *hfunc, + u32 *rqns, unsigned int num_rqns) +{ + bool changed_indir = false; + bool changed_hash = false; + + if (hfunc && *hfunc != rss->hash.hfunc) { + switch (*hfunc) { + case ETH_RSS_HASH_XOR: + case ETH_RSS_HASH_TOP: + break; + default: + return -EINVAL; + } + changed_hash = true; + changed_indir = true; + rss->hash.hfunc = *hfunc; + } + + if (key) { + if (rss->hash.hfunc == ETH_RSS_HASH_TOP) + changed_hash = true; + memcpy(rss->hash.toeplitz_hash_key, key, + sizeof(rss->hash.toeplitz_hash_key)); + } + + if (indir) { + unsigned int i; + + changed_indir = true; + + for (i = 0; i < MLX5E_INDIR_RQT_SIZE; i++) + rss->indir.table[i] = indir[i]; + } + + if (changed_indir && rss->enabled) + mlx5e_rss_apply(rss, rqns, num_rqns); + + if (changed_hash) + mlx5e_rss_update_tirs(rss); + + return 0; +} + +struct mlx5e_rss_params_hash mlx5e_rss_get_hash(struct mlx5e_rss *rss) +{ + return rss->hash; +} + +u8 mlx5e_rss_get_hash_fields(struct mlx5e_rss *rss, enum mlx5_traffic_types tt) +{ + return rss->rx_hash_fields[tt]; +} + +int mlx5e_rss_set_hash_fields(struct mlx5e_rss *rss, enum mlx5_traffic_types tt, + u8 rx_hash_fields) +{ + u8 old_rx_hash_fields; + int err; + + old_rx_hash_fields = rss->rx_hash_fields[tt]; + + if (old_rx_hash_fields == rx_hash_fields) + return 0; + + rss->rx_hash_fields[tt] = rx_hash_fields; + + err = mlx5e_rss_update_tir(rss, tt, false); + if (err) { + rss->rx_hash_fields[tt] = old_rx_hash_fields; + mlx5e_rss_warn(rss->mdev, + "Failed to update RSS hash fields of indirect TIR for traffic type %d: err = %d\n", + tt, err); + return err; + } + + if (!(rss->inner_ft_support)) + return 0; + + err = mlx5e_rss_update_tir(rss, tt, true); + if (err) { + /* Partial update happened. Try to revert - it may fail too, but + * there is nothing more we can do. + */ + rss->rx_hash_fields[tt] = old_rx_hash_fields; + mlx5e_rss_warn(rss->mdev, + "Failed to update RSS hash fields of inner indirect TIR for traffic type %d: err = %d\n", + tt, err); + if (mlx5e_rss_update_tir(rss, tt, false)) + mlx5e_rss_warn(rss->mdev, + "Partial update of RSS hash fields happened: failed to revert indirect TIR for traffic type %d to the old values\n", + tt); + } + + return err; +} + +void mlx5e_rss_set_indir_uniform(struct mlx5e_rss *rss, unsigned int nch) +{ + mlx5e_rss_params_indir_init_uniform(&rss->indir, nch); +} diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rss.h b/drivers/net/ethernet/mellanox/mlx5/core/en/rss.h new file mode 100644 index 000000000000..e71e712ed842 --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rss.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ +/* Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. */ + +#ifndef __MLX5_EN_RSS_H__ +#define __MLX5_EN_RSS_H__ + +#include "rqt.h" +#include "tir.h" +#include "fs.h" + +struct mlx5e_rss_params_traffic_type +mlx5e_rss_get_default_tt_config(enum mlx5_traffic_types tt); + +struct mlx5e_rss; + +struct mlx5e_rss *mlx5e_rss_alloc(void); +void mlx5e_rss_free(struct mlx5e_rss *rss); +int mlx5e_rss_init(struct mlx5e_rss *rss, struct mlx5_core_dev *mdev, + bool inner_ft_support, u32 drop_rqn, + const struct mlx5e_lro_param *init_lro_param); +void mlx5e_rss_cleanup(struct mlx5e_rss *rss); + +u32 mlx5e_rss_get_tirn(struct mlx5e_rss *rss, enum mlx5_traffic_types tt, + bool inner); +void mlx5e_rss_enable(struct mlx5e_rss *rss, u32 *rqns, unsigned int num_rqns); +void mlx5e_rss_disable(struct mlx5e_rss *rss); + +int mlx5e_rss_lro_set_param(struct mlx5e_rss *rss, struct mlx5e_lro_param *lro_param); +int mlx5e_rss_get_rxfh(struct mlx5e_rss *rss, u32 *indir, u8 *key, u8 *hfunc); +int mlx5e_rss_set_rxfh(struct mlx5e_rss *rss, const u32 *indir, + const u8 *key, const u8 *hfunc, + u32 *rqns, unsigned int num_rqns); +struct mlx5e_rss_params_hash mlx5e_rss_get_hash(struct mlx5e_rss *rss); +u8 mlx5e_rss_get_hash_fields(struct mlx5e_rss *rss, enum mlx5_traffic_types tt); +int mlx5e_rss_set_hash_fields(struct mlx5e_rss *rss, enum mlx5_traffic_types tt, + u8 rx_hash_fields); +void mlx5e_rss_set_indir_uniform(struct mlx5e_rss *rss, unsigned int nch); +#endif /* __MLX5_EN_RSS_H__ */ diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.c index 336930cfd632..590d94196370 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.c @@ -5,74 +5,6 @@ #include "channels.h" #include "params.h" -static const struct mlx5e_rss_params_traffic_type rss_default_config[MLX5E_NUM_INDIR_TIRS] = { - [MLX5_TT_IPV4_TCP] = { - .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4, - .l4_prot_type = MLX5_L4_PROT_TYPE_TCP, - .rx_hash_fields = MLX5_HASH_IP_L4PORTS, - }, - [MLX5_TT_IPV6_TCP] = { - .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6, - .l4_prot_type = MLX5_L4_PROT_TYPE_TCP, - .rx_hash_fields = MLX5_HASH_IP_L4PORTS, - }, - [MLX5_TT_IPV4_UDP] = { - .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4, - .l4_prot_type = MLX5_L4_PROT_TYPE_UDP, - .rx_hash_fields = MLX5_HASH_IP_L4PORTS, - }, - [MLX5_TT_IPV6_UDP] = { - .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6, - .l4_prot_type = MLX5_L4_PROT_TYPE_UDP, - .rx_hash_fields = MLX5_HASH_IP_L4PORTS, - }, - [MLX5_TT_IPV4_IPSEC_AH] = { - .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4, - .l4_prot_type = 0, - .rx_hash_fields = MLX5_HASH_IP_IPSEC_SPI, - }, - [MLX5_TT_IPV6_IPSEC_AH] = { - .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6, - .l4_prot_type = 0, - .rx_hash_fields = MLX5_HASH_IP_IPSEC_SPI, - }, - [MLX5_TT_IPV4_IPSEC_ESP] = { - .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4, - .l4_prot_type = 0, - .rx_hash_fields = MLX5_HASH_IP_IPSEC_SPI, - }, - [MLX5_TT_IPV6_IPSEC_ESP] = { - .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6, - .l4_prot_type = 0, - .rx_hash_fields = MLX5_HASH_IP_IPSEC_SPI, - }, - [MLX5_TT_IPV4] = { - .l3_prot_type = MLX5_L3_PROT_TYPE_IPV4, - .l4_prot_type = 0, - .rx_hash_fields = MLX5_HASH_IP, - }, - [MLX5_TT_IPV6] = { - .l3_prot_type = MLX5_L3_PROT_TYPE_IPV6, - .l4_prot_type = 0, - .rx_hash_fields = MLX5_HASH_IP, - }, -}; - -struct mlx5e_rss_params_traffic_type -mlx5e_rss_get_default_tt_config(enum mlx5_traffic_types tt) -{ - return rss_default_config[tt]; -} - -struct mlx5e_rss { - struct mlx5e_rss_params_hash hash; - struct mlx5e_rss_params_indir indir; - u32 rx_hash_fields[MLX5E_NUM_INDIR_TIRS]; - struct mlx5e_tir tir[MLX5E_NUM_INDIR_TIRS]; - struct mlx5e_tir inner_tir[MLX5E_NUM_INDIR_TIRS]; - struct mlx5e_rqt rqt; -}; - struct mlx5e_rx_res { struct mlx5_core_dev *mdev; enum mlx5e_rx_res_features features; @@ -97,149 +29,105 @@ struct mlx5e_rx_res { } ptp; }; -struct mlx5e_rx_res *mlx5e_rx_res_alloc(void) -{ - return kvzalloc(sizeof(struct mlx5e_rx_res), GFP_KERNEL); -} +/* API for rx_res_rss_* */ -static void mlx5e_rx_res_rss_params_init(struct mlx5e_rx_res *res, unsigned int init_nch) +static int mlx5e_rx_res_rss_init(struct mlx5e_rx_res *res, + const struct mlx5e_lro_param *init_lro_param, + unsigned int init_nch) { - struct mlx5e_rss *rss = res->rss; - enum mlx5_traffic_types tt; - - rss->hash.hfunc = ETH_RSS_HASH_TOP; - netdev_rss_key_fill(rss->hash.toeplitz_hash_key, - sizeof(rss->hash.toeplitz_hash_key)); - mlx5e_rss_params_indir_init_uniform(&rss->indir, init_nch); - for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) - rss->rx_hash_fields[tt] = - mlx5e_rss_get_default_tt_config(tt).rx_hash_fields; + bool inner_ft_support = res->features & MLX5E_RX_RES_FEATURE_INNER_FT; + struct mlx5e_rss *rss; + int err; + + rss = mlx5e_rss_alloc(); + if (!rss) + return -ENOMEM; + + res->rss = rss; + + err = mlx5e_rss_init(rss, res->mdev, inner_ft_support, res->drop_rqn, init_lro_param); + if (err) + goto err_rss_free; + + mlx5e_rss_set_indir_uniform(rss, init_nch); + + return 0; + +err_rss_free: + mlx5e_rss_free(rss); + res->rss = NULL; + return err; } -static void mlx5e_rx_res_rss_destroy_tir(struct mlx5e_rx_res *res, - enum mlx5_traffic_types tt, - bool inner) +static void mlx5e_rx_res_rss_destroy(struct mlx5e_rx_res *res) { struct mlx5e_rss *rss = res->rss; - struct mlx5e_tir *tir; - tir = inner ? &rss->inner_tir[tt] : &rss->tir[tt]; - mlx5e_tir_destroy(tir); + mlx5e_rss_cleanup(rss); + mlx5e_rss_free(rss); + res->rss = NULL; } -static int mlx5e_rx_res_rss_create_tir(struct mlx5e_rx_res *res, - struct mlx5e_tir_builder *builder, - enum mlx5_traffic_types tt, - const struct mlx5e_lro_param *init_lro_param, - bool inner) +static void mlx5e_rx_res_rss_enable(struct mlx5e_rx_res *res) { - bool inner_ft_support = res->features & MLX5E_RX_RES_FEATURE_INNER_FT; - struct mlx5e_rss_params_traffic_type rss_tt; struct mlx5e_rss *rss = res->rss; - struct mlx5e_tir *tir; - u32 rqtn; - int err; - tir = inner ? &rss->inner_tir[tt] : &rss->tir[tt]; - - rqtn = mlx5e_rqt_get_rqtn(&rss->rqt); - mlx5e_tir_builder_build_rqt(builder, res->mdev->mlx5e_res.hw_objs.td.tdn, - rqtn, inner_ft_support); - mlx5e_tir_builder_build_lro(builder, init_lro_param); - rss_tt = mlx5e_rx_res_rss_get_current_tt_config(res, tt); - mlx5e_tir_builder_build_rss(builder, &rss->hash, &rss_tt, inner); - - err = mlx5e_tir_init(tir, builder, res->mdev, true); - if (err) { - mlx5_core_warn(res->mdev, "Failed to create %sindirect TIR: err = %d, tt = %d\n", - inner ? "inner " : "", err, tt); - return err; - } + res->rss_active = true; - return 0; + mlx5e_rss_enable(rss, res->rss_rqns, res->rss_nch); } -static int mlx5e_rx_res_rss_create_tirs(struct mlx5e_rx_res *res, - const struct mlx5e_lro_param *init_lro_param, - bool inner) +static void mlx5e_rx_res_rss_disable(struct mlx5e_rx_res *res) { - enum mlx5_traffic_types tt, max_tt; - struct mlx5e_tir_builder *builder; - int err; - - builder = mlx5e_tir_builder_alloc(false); - if (!builder) - return -ENOMEM; - - for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) { - err = mlx5e_rx_res_rss_create_tir(res, builder, tt, init_lro_param, inner); - if (err) - goto err_destroy_tirs; - - mlx5e_tir_builder_clear(builder); - } + struct mlx5e_rss *rss = res->rss; -out: - mlx5e_tir_builder_free(builder); - return err; + res->rss_active = false; -err_destroy_tirs: - max_tt = tt; - for (tt = 0; tt < max_tt; tt++) - mlx5e_rx_res_rss_destroy_tir(res, tt, inner); - goto out; + mlx5e_rss_disable(rss); } -static void mlx5e_rx_res_rss_destroy_tirs(struct mlx5e_rx_res *res, bool inner) +/* Updates the indirection table SW shadow, does not update the HW resources yet */ +void mlx5e_rx_res_rss_set_indir_uniform(struct mlx5e_rx_res *res, unsigned int nch) { - enum mlx5_traffic_types tt; - - for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) - mlx5e_rx_res_rss_destroy_tir(res, tt, inner); + WARN_ON_ONCE(res->rss_active); + mlx5e_rss_set_indir_uniform(res->rss, nch); } -static int mlx5e_rx_res_rss_init(struct mlx5e_rx_res *res, - const struct mlx5e_lro_param *init_lro_param, - unsigned int init_nch) +int mlx5e_rx_res_rss_get_rxfh(struct mlx5e_rx_res *res, u32 *indir, u8 *key, u8 *hfunc) { - bool inner_ft_support = res->features & MLX5E_RX_RES_FEATURE_INNER_FT; - struct mlx5e_rss *rss; - int err; - - rss = kvzalloc(sizeof(*rss), GFP_KERNEL); - if (!rss) - return -ENOMEM; + struct mlx5e_rss *rss = res->rss; - res->rss = rss; + return mlx5e_rss_get_rxfh(rss, indir, key, hfunc); +} - mlx5e_rx_res_rss_params_init(res, init_nch); +int mlx5e_rx_res_rss_set_rxfh(struct mlx5e_rx_res *res, const u32 *indir, + const u8 *key, const u8 *hfunc) +{ + struct mlx5e_rss *rss = res->rss; - err = mlx5e_rqt_init_direct(&rss->rqt, res->mdev, true, res->drop_rqn); - if (err) - goto err_free_rss; + return mlx5e_rss_set_rxfh(rss, indir, key, hfunc, res->rss_rqns, res->rss_nch); +} - err = mlx5e_rx_res_rss_create_tirs(res, init_lro_param, false); - if (err) - goto err_destroy_rqt; +u8 mlx5e_rx_res_rss_get_hash_fields(struct mlx5e_rx_res *res, enum mlx5_traffic_types tt) +{ + struct mlx5e_rss *rss = res->rss; - if (inner_ft_support) { - err = mlx5e_rx_res_rss_create_tirs(res, init_lro_param, true); - if (err) - goto err_destroy_tirs; - } + return mlx5e_rss_get_hash_fields(rss, tt); +} - return 0; +int mlx5e_rx_res_rss_set_hash_fields(struct mlx5e_rx_res *res, enum mlx5_traffic_types tt, + u8 rx_hash_fields) +{ + struct mlx5e_rss *rss = res->rss; -err_destroy_tirs: - mlx5e_rx_res_rss_destroy_tirs(res, false); + return mlx5e_rss_set_hash_fields(rss, tt, rx_hash_fields); +} -err_destroy_rqt: - mlx5e_rqt_destroy(&rss->rqt); +/* End of API rx_res_rss_* */ -err_free_rss: - kvfree(rss); - res->rss = NULL; - return err; +struct mlx5e_rx_res *mlx5e_rx_res_alloc(void) +{ + return kvzalloc(sizeof(struct mlx5e_rx_res), GFP_KERNEL); } static int mlx5e_rx_res_channels_init(struct mlx5e_rx_res *res, @@ -379,20 +267,6 @@ out: return err; } -static void mlx5e_rx_res_rss_destroy(struct mlx5e_rx_res *res) -{ - struct mlx5e_rss *rss = res->rss; - - mlx5e_rx_res_rss_destroy_tirs(res, false); - - if (res->features & MLX5E_RX_RES_FEATURE_INNER_FT) - mlx5e_rx_res_rss_destroy_tirs(res, true); - - mlx5e_rqt_destroy(&rss->rqt); - kvfree(rss); - res->rss = NULL; -} - static void mlx5e_rx_res_channels_destroy(struct mlx5e_rx_res *res) { unsigned int ix; @@ -431,7 +305,7 @@ int mlx5e_rx_res_init(struct mlx5e_rx_res *res, struct mlx5_core_dev *mdev, err = mlx5e_rx_res_rss_init(res, init_lro_param, init_nch); if (err) - return err; + goto err_out; err = mlx5e_rx_res_channels_init(res, init_lro_param); if (err) @@ -447,6 +321,7 @@ err_channels_destroy: mlx5e_rx_res_channels_destroy(res); err_rss_destroy: mlx5e_rx_res_rss_destroy(res); +err_out: return err; } @@ -478,15 +353,14 @@ u32 mlx5e_rx_res_get_tirn_rss(struct mlx5e_rx_res *res, enum mlx5_traffic_types { struct mlx5e_rss *rss = res->rss; - return mlx5e_tir_get_tirn(&rss->tir[tt]); + return mlx5e_rss_get_tirn(rss, tt, false); } u32 mlx5e_rx_res_get_tirn_rss_inner(struct mlx5e_rx_res *res, enum mlx5_traffic_types tt) { struct mlx5e_rss *rss = res->rss; - WARN_ON(!(res->features & MLX5E_RX_RES_FEATURE_INNER_FT)); - return mlx5e_tir_get_tirn(&rss->inner_tir[tt]); + return mlx5e_rss_get_tirn(rss, tt, true); } u32 mlx5e_rx_res_get_tirn_ptp(struct mlx5e_rx_res *res) @@ -500,34 +374,6 @@ u32 mlx5e_rx_res_get_rqtn_direct(struct mlx5e_rx_res *res, unsigned int ix) return mlx5e_rqt_get_rqtn(&res->channels[ix].direct_rqt); } -static void mlx5e_rx_res_rss_enable(struct mlx5e_rx_res *res) -{ - struct mlx5e_rss *rss = res->rss; - int err; - - res->rss_active = true; - - err = mlx5e_rqt_redirect_indir(&rss->rqt, res->rss_rqns, res->rss_nch, - rss->hash.hfunc, - &rss->indir); - if (err) - mlx5_core_warn(res->mdev, "Failed to redirect RQT %#x to channels: err = %d\n", - mlx5e_rqt_get_rqtn(&rss->rqt), err); -} - -static void mlx5e_rx_res_rss_disable(struct mlx5e_rx_res *res) -{ - struct mlx5e_rss *rss = res->rss; - int err; - - res->rss_active = false; - - err = mlx5e_rqt_redirect_direct(&rss->rqt, res->drop_rqn); - if (err) - mlx5_core_warn(res->mdev, "Failed to redirect RQT %#x to drop RQ %#x: err = %d\n", - mlx5e_rqt_get_rqtn(&rss->rqt), res->drop_rqn, err); -} - void mlx5e_rx_res_channels_activate(struct mlx5e_rx_res *res, struct mlx5e_channels *chs) { unsigned int nch, ix; @@ -655,185 +501,10 @@ int mlx5e_rx_res_xsk_deactivate(struct mlx5e_rx_res *res, unsigned int ix) return err; } -struct mlx5e_rss_params_traffic_type -mlx5e_rx_res_rss_get_current_tt_config(struct mlx5e_rx_res *res, enum mlx5_traffic_types tt) -{ - struct mlx5e_rss_params_traffic_type rss_tt; - struct mlx5e_rss *rss = res->rss; - - rss_tt = mlx5e_rss_get_default_tt_config(tt); - rss_tt.rx_hash_fields = rss->rx_hash_fields[tt]; - return rss_tt; -} - -/* Updates the indirection table SW shadow, does not update the HW resources yet */ -void mlx5e_rx_res_rss_set_indir_uniform(struct mlx5e_rx_res *res, unsigned int nch) -{ - WARN_ON_ONCE(res->rss_active); - mlx5e_rss_params_indir_init_uniform(&res->rss->indir, nch); -} - -int mlx5e_rx_res_rss_get_rxfh(struct mlx5e_rx_res *res, u32 *indir, u8 *key, u8 *hfunc) -{ - struct mlx5e_rss *rss = res->rss; - unsigned int i; - - if (indir) - for (i = 0; i < MLX5E_INDIR_RQT_SIZE; i++) - indir[i] = rss->indir.table[i]; - - if (key) - memcpy(key, rss->hash.toeplitz_hash_key, - sizeof(rss->hash.toeplitz_hash_key)); - - if (hfunc) - *hfunc = rss->hash.hfunc; - - return 0; -} - -static int mlx5e_rx_res_rss_update_tir(struct mlx5e_rx_res *res, enum mlx5_traffic_types tt, - bool inner) -{ - struct mlx5e_rss_params_traffic_type rss_tt; - struct mlx5e_tir_builder *builder; - struct mlx5e_rss *rss = res->rss; - struct mlx5e_tir *tir; - int err; - - builder = mlx5e_tir_builder_alloc(true); - if (!builder) - return -ENOMEM; - - rss_tt = mlx5e_rx_res_rss_get_current_tt_config(res, tt); - - mlx5e_tir_builder_build_rss(builder, &rss->hash, &rss_tt, inner); - tir = inner ? &rss->inner_tir[tt] : &rss->tir[tt]; - err = mlx5e_tir_modify(tir, builder); - - mlx5e_tir_builder_free(builder); - return err; -} - -int mlx5e_rx_res_rss_set_rxfh(struct mlx5e_rx_res *res, const u32 *indir, - const u8 *key, const u8 *hfunc) -{ - struct mlx5e_rss *rss = res->rss; - enum mlx5_traffic_types tt; - bool changed_indir = false; - bool changed_hash = false; - int err; - - if (hfunc && *hfunc != rss->hash.hfunc) { - switch (*hfunc) { - case ETH_RSS_HASH_XOR: - case ETH_RSS_HASH_TOP: - break; - default: - return -EINVAL; - } - changed_hash = true; - changed_indir = true; - rss->hash.hfunc = *hfunc; - } - - if (key) { - if (rss->hash.hfunc == ETH_RSS_HASH_TOP) - changed_hash = true; - memcpy(rss->hash.toeplitz_hash_key, key, - sizeof(rss->hash.toeplitz_hash_key)); - } - - if (indir) { - unsigned int i; - - changed_indir = true; - - for (i = 0; i < MLX5E_INDIR_RQT_SIZE; i++) - rss->indir.table[i] = indir[i]; - } - - if (changed_indir && res->rss_active) { - err = mlx5e_rqt_redirect_indir(&rss->rqt, res->rss_rqns, res->rss_nch, - rss->hash.hfunc, &rss->indir); - if (err) - mlx5_core_warn(res->mdev, "Failed to redirect indirect RQT %#x to channels: err = %d\n", - mlx5e_rqt_get_rqtn(&rss->rqt), err); - } - - if (changed_hash) - for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) { - err = mlx5e_rx_res_rss_update_tir(res, tt, false); - if (err) - mlx5_core_warn(res->mdev, "Failed to update RSS hash of indirect TIR for traffic type %d: err = %d\n", - tt, err); - - if (!(res->features & MLX5E_RX_RES_FEATURE_INNER_FT)) - continue; - - err = mlx5e_rx_res_rss_update_tir(res, tt, true); - if (err) - mlx5_core_warn(res->mdev, "Failed to update RSS hash of inner indirect TIR for traffic type %d: err = %d\n", - tt, err); - } - - return 0; -} - -u8 mlx5e_rx_res_rss_get_hash_fields(struct mlx5e_rx_res *res, enum mlx5_traffic_types tt) -{ - struct mlx5e_rss *rss = res->rss; - - return rss->rx_hash_fields[tt]; -} - -int mlx5e_rx_res_rss_set_hash_fields(struct mlx5e_rx_res *res, enum mlx5_traffic_types tt, - u8 rx_hash_fields) -{ - struct mlx5e_rss *rss = res->rss; - u8 old_rx_hash_fields; - int err; - - old_rx_hash_fields = rss->rx_hash_fields[tt]; - - if (old_rx_hash_fields == rx_hash_fields) - return 0; - - rss->rx_hash_fields[tt] = rx_hash_fields; - - err = mlx5e_rx_res_rss_update_tir(res, tt, false); - if (err) { - rss->rx_hash_fields[tt] = old_rx_hash_fields; - mlx5_core_warn(res->mdev, "Failed to update RSS hash fields of indirect TIR for traffic type %d: err = %d\n", - tt, err); - return err; - } - - if (!(res->features & MLX5E_RX_RES_FEATURE_INNER_FT)) - return 0; - - err = mlx5e_rx_res_rss_update_tir(res, tt, true); - if (err) { - /* Partial update happened. Try to revert - it may fail too, but - * there is nothing more we can do. - */ - rss->rx_hash_fields[tt] = old_rx_hash_fields; - mlx5_core_warn(res->mdev, "Failed to update RSS hash fields of inner indirect TIR for traffic type %d: err = %d\n", - tt, err); - if (mlx5e_rx_res_rss_update_tir(res, tt, false)) - mlx5_core_warn(res->mdev, - "Partial update of RSS hash fields happened: failed to revert indirect TIR for traffic type %d to the old values\n", - tt); - } - - return err; -} - int mlx5e_rx_res_lro_set_param(struct mlx5e_rx_res *res, struct mlx5e_lro_param *lro_param) { struct mlx5e_rss *rss = res->rss; struct mlx5e_tir_builder *builder; - enum mlx5_traffic_types tt; int err, final_err; unsigned int ix; @@ -845,26 +516,9 @@ int mlx5e_rx_res_lro_set_param(struct mlx5e_rx_res *res, struct mlx5e_lro_param final_err = 0; - for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) { - err = mlx5e_tir_modify(&rss->tir[tt], builder); - if (err) { - mlx5_core_warn(res->mdev, "Failed to update LRO state of indirect TIR %#x for traffic type %d: err = %d\n", - mlx5e_tir_get_tirn(&rss->tir[tt]), tt, err); - if (!final_err) - final_err = err; - } - - if (!(res->features & MLX5E_RX_RES_FEATURE_INNER_FT)) - continue; - - err = mlx5e_tir_modify(&rss->inner_tir[tt], builder); - if (err) { - mlx5_core_warn(res->mdev, "Failed to update LRO state of inner indirect TIR %#x for traffic type %d: err = %d\n", - mlx5e_tir_get_tirn(&rss->inner_tir[tt]), tt, err); - if (!final_err) - final_err = err; - } - } + err = mlx5e_rss_lro_set_param(rss, lro_param); + if (err) + final_err = final_err ? : err; for (ix = 0; ix < res->max_nch; ix++) { err = mlx5e_tir_modify(&res->channels[ix].direct_tir, builder); @@ -882,5 +536,5 @@ int mlx5e_rx_res_lro_set_param(struct mlx5e_rx_res *res, struct mlx5e_lro_param struct mlx5e_rss_params_hash mlx5e_rx_res_get_current_hash(struct mlx5e_rx_res *res) { - return res->rss->hash; + return mlx5e_rss_get_hash(res->rss); } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.h b/drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.h index 1703fb981d6d..af017f516f4a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rx_res.h @@ -8,6 +8,7 @@ #include "rqt.h" #include "tir.h" #include "fs.h" +#include "rss.h" struct mlx5e_rx_res; @@ -20,9 +21,6 @@ enum mlx5e_rx_res_features { MLX5E_RX_RES_FEATURE_PTP = BIT(2), }; -struct mlx5e_rss_params_traffic_type -mlx5e_rss_get_default_tt_config(enum mlx5_traffic_types tt); - /* Setup */ struct mlx5e_rx_res *mlx5e_rx_res_alloc(void); int mlx5e_rx_res_init(struct mlx5e_rx_res *res, struct mlx5_core_dev *mdev, @@ -50,8 +48,6 @@ int mlx5e_rx_res_xsk_activate(struct mlx5e_rx_res *res, struct mlx5e_channels *c int mlx5e_rx_res_xsk_deactivate(struct mlx5e_rx_res *res, unsigned int ix); /* Configuration API */ -struct mlx5e_rss_params_traffic_type -mlx5e_rx_res_rss_get_current_tt_config(struct mlx5e_rx_res *res, enum mlx5_traffic_types tt); void mlx5e_rx_res_rss_set_indir_uniform(struct mlx5e_rx_res *res, unsigned int nch); int mlx5e_rx_res_rss_get_rxfh(struct mlx5e_rx_res *res, u32 *indir, u8 *key, u8 *hfunc); int mlx5e_rx_res_rss_set_rxfh(struct mlx5e_rx_res *res, const u32 *indir, |