| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Tariq Toukan | 5333 | 17.30% | 116 | 15.96% |
| Maxim Mikityanskiy | 4760 | 15.44% | 86 | 11.83% |
| Amir Vadai | 4095 | 13.28% | 5 | 0.69% |
| Saeed Mahameed | 3734 | 12.11% | 88 | 12.10% |
| Aya Levin | 1975 | 6.41% | 53 | 7.29% |
| Gal Pressman | 1065 | 3.45% | 31 | 4.26% |
| Eran Ben Elisha | 815 | 2.64% | 20 | 2.75% |
| Ben Ben-ishay | 755 | 2.45% | 2 | 0.28% |
| Moshe Tal | 515 | 1.67% | 8 | 1.10% |
| Dragos Tatulea | 506 | 1.64% | 12 | 1.65% |
| Mohamad Haj Yahia | 481 | 1.56% | 7 | 0.96% |
| Hadar Hen Zion | 462 | 1.50% | 6 | 0.83% |
| Lama Kayal | 406 | 1.32% | 10 | 1.38% |
| Achiad Shochat | 392 | 1.27% | 19 | 2.61% |
| Roi Dayan | 384 | 1.25% | 14 | 1.93% |
| Leon Romanovsky | 322 | 1.04% | 10 | 1.38% |
| Khalid Manaa | 309 | 1.00% | 3 | 0.41% |
| Yevgeny Petrilin | 273 | 0.89% | 1 | 0.14% |
| Matthew Finlay | 261 | 0.85% | 3 | 0.41% |
| Moshe Shemesh | 243 | 0.79% | 7 | 0.96% |
| Patrisious Haddad | 203 | 0.66% | 2 | 0.28% |
| Jakub Kiciński | 203 | 0.66% | 7 | 0.96% |
| Jiri Pirko | 194 | 0.63% | 14 | 1.93% |
| Huy Nguyen | 189 | 0.61% | 8 | 1.10% |
| Eli Cohen | 177 | 0.57% | 2 | 0.28% |
| Rana Shahout | 171 | 0.55% | 2 | 0.28% |
| Adham Faris | 153 | 0.50% | 6 | 0.83% |
| Jesper Dangaard Brouer | 145 | 0.47% | 5 | 0.69% |
| Or Gerlitz | 137 | 0.44% | 9 | 1.24% |
| Maor Gottlieb | 128 | 0.42% | 7 | 0.96% |
| Feras Daoud | 116 | 0.38% | 6 | 0.83% |
| Yuval Avnery | 110 | 0.36% | 1 | 0.14% |
| Maor Dickman | 104 | 0.34% | 3 | 0.41% |
| Daniel Jurgens | 93 | 0.30% | 5 | 0.69% |
| Tal Gilboa | 87 | 0.28% | 8 | 1.10% |
| Ofer Levi | 76 | 0.25% | 2 | 0.28% |
| Lorenzo Bianconi | 75 | 0.24% | 1 | 0.14% |
| Dmytro Linkin | 75 | 0.24% | 2 | 0.28% |
| Guy Ergas | 70 | 0.23% | 2 | 0.28% |
| Marina Varshaver | 55 | 0.18% | 3 | 0.41% |
| Ilan Tayari | 51 | 0.17% | 3 | 0.41% |
| Vladyslav Tarasiuk | 47 | 0.15% | 3 | 0.41% |
| Gil Rockah | 43 | 0.14% | 1 | 0.14% |
| Parav Pandit | 39 | 0.13% | 5 | 0.69% |
| Arnd Bergmann | 38 | 0.12% | 3 | 0.41% |
| David S. Miller | 37 | 0.12% | 1 | 0.14% |
| Eyal Davidovich | 35 | 0.11% | 1 | 0.14% |
| Alex Vesker | 35 | 0.11% | 7 | 0.96% |
| Aviv Heller | 35 | 0.11% | 4 | 0.55% |
| Gustavo A. R. Silva | 34 | 0.11% | 2 | 0.28% |
| Kees Cook | 33 | 0.11% | 2 | 0.28% |
| Shaker Daibes | 32 | 0.10% | 2 | 0.28% |
| Bodong Wang | 32 | 0.10% | 2 | 0.28% |
| Fan Li | 31 | 0.10% | 1 | 0.14% |
| Kamal Heib | 31 | 0.10% | 3 | 0.41% |
| Erez Shitrit | 31 | 0.10% | 4 | 0.55% |
| Andy Gospodarek | 30 | 0.10% | 1 | 0.14% |
| Ariel Levkovich | 29 | 0.09% | 3 | 0.41% |
| Emeel Hakim | 26 | 0.08% | 2 | 0.28% |
| Gavi Teitz | 26 | 0.08% | 3 | 0.41% |
| Adi Nissim | 26 | 0.08% | 1 | 0.14% |
| Vlad Buslov | 24 | 0.08% | 5 | 0.69% |
| Magnus Karlsson | 23 | 0.07% | 3 | 0.41% |
| Ilya Lesokhin | 23 | 0.07% | 3 | 0.41% |
| Linus Torvalds | 23 | 0.07% | 2 | 0.28% |
| Jack Morgenstein | 21 | 0.07% | 1 | 0.14% |
| Amir Tzin | 19 | 0.06% | 1 | 0.14% |
| Boris Pismenny | 18 | 0.06% | 2 | 0.28% |
| Pablo Neira Ayuso | 18 | 0.06% | 2 | 0.28% |
| Michael Guralnik | 17 | 0.06% | 1 | 0.14% |
| Daniel Borkmann | 16 | 0.05% | 1 | 0.14% |
| Majd Dibbiny | 16 | 0.05% | 2 | 0.28% |
| Ron Diskin | 14 | 0.05% | 2 | 0.28% |
| Gavin Li | 14 | 0.05% | 1 | 0.14% |
| Shay Agroskin | 12 | 0.04% | 2 | 0.28% |
| Guy Truzman | 11 | 0.04% | 1 | 0.14% |
| Björn Töpel | 9 | 0.03% | 1 | 0.14% |
| Alexander Duyck | 9 | 0.03% | 2 | 0.28% |
| Denis Drozdov | 8 | 0.03% | 1 | 0.14% |
| Lior Nahmanson | 8 | 0.03% | 1 | 0.14% |
| Ivan Khoronzhuk | 8 | 0.03% | 1 | 0.14% |
| Calvin Owens | 8 | 0.03% | 1 | 0.14% |
| Alaa Hleihel | 8 | 0.03% | 4 | 0.55% |
| Will Mortensen | 7 | 0.02% | 1 | 0.14% |
| Toke Höiland-Jörgensen | 7 | 0.02% | 1 | 0.14% |
| Vu Pham | 7 | 0.02% | 2 | 0.28% |
| Eric Dumazet | 7 | 0.02% | 1 | 0.14% |
| Qian Cai | 7 | 0.02% | 1 | 0.14% |
| Eugenia Emantayev | 6 | 0.02% | 1 | 0.14% |
| Xin Xiong | 6 | 0.02% | 1 | 0.14% |
| Dan Carpenter | 6 | 0.02% | 1 | 0.14% |
| Davide Caratti | 6 | 0.02% | 1 | 0.14% |
| Zhu Yanjun | 6 | 0.02% | 1 | 0.14% |
| Mark Bloch | 6 | 0.02% | 1 | 0.14% |
| Martin KaFai Lau | 5 | 0.02% | 1 | 0.14% |
| Haggai Abramonvsky | 5 | 0.02% | 1 | 0.14% |
| Aharon Landau | 5 | 0.02% | 2 | 0.28% |
| Maher Sanalla | 5 | 0.02% | 3 | 0.41% |
| Andrii Nakryiko | 4 | 0.01% | 1 | 0.14% |
| Jianbo Liu | 4 | 0.01% | 1 | 0.14% |
| David E. Box | 4 | 0.01% | 1 | 0.14% |
| Michael S. Tsirkin | 4 | 0.01% | 1 | 0.14% |
| Vladimir Oltean | 3 | 0.01% | 1 | 0.14% |
| Jarod Wilson | 3 | 0.01% | 1 | 0.14% |
| Miroslav Lichvar | 3 | 0.01% | 1 | 0.14% |
| Shalom Lagziel | 2 | 0.01% | 1 | 0.14% |
| Américo Wang | 2 | 0.01% | 1 | 0.14% |
| Thomas Gleixner | 2 | 0.01% | 2 | 0.28% |
| Yishai Hadas | 2 | 0.01% | 1 | 0.14% |
| Roy Novich | 2 | 0.01% | 1 | 0.14% |
| Artemy Kovalyov | 1 | 0.00% | 1 | 0.14% |
| Linus Torvalds (pre-git) | 1 | 0.00% | 1 | 0.14% |
| Stephen Hemminger | 1 | 0.00% | 1 | 0.14% |
| Nogah Frankel | 1 | 0.00% | 1 | 0.14% |
| Lin Yun Sheng | 1 | 0.00% | 1 | 0.14% |
| Total | 30826 | 727 |
/* * Copyright (c) 2015-2016, Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include <net/tc_act/tc_gact.h> #include <linux/mlx5/fs.h> #include <net/vxlan.h> #include <net/geneve.h> #include <linux/bpf.h> #include <linux/debugfs.h> #include <linux/if_bridge.h> #include <linux/filter.h> #include <net/page_pool/types.h> #include <net/pkt_sched.h> #include <net/xdp_sock_drv.h> #include "eswitch.h" #include "en.h" #include "en/txrx.h" #include "en_tc.h" #include "en_rep.h" #include "en_accel/ipsec.h" #include "en_accel/macsec.h" #include "en_accel/en_accel.h" #include "en_accel/ktls.h" #include "lib/vxlan.h" #include "lib/clock.h" #include "en/port.h" #include "en/xdp.h" #include "lib/eq.h" #include "en/monitor_stats.h" #include "en/health.h" #include "en/params.h" #include "en/xsk/pool.h" #include "en/xsk/setup.h" #include "en/xsk/rx.h" #include "en/xsk/tx.h" #include "en/hv_vhca_stats.h" #include "en/devlink.h" #include "lib/mlx5.h" #include "en/ptp.h" #include "en/htb.h" #include "qos.h" #include "en/trap.h" #include "lib/devcom.h" bool mlx5e_check_fragmented_striding_rq_cap(struct mlx5_core_dev *mdev, u8 page_shift, enum mlx5e_mpwrq_umr_mode umr_mode) { u16 umr_wqebbs, max_wqebbs; bool striding_rq_umr; striding_rq_umr = MLX5_CAP_GEN(mdev, striding_rq) && MLX5_CAP_GEN(mdev, umr_ptr_rlky) && MLX5_CAP_ETH(mdev, reg_umr_sq); if (!striding_rq_umr) return false; umr_wqebbs = mlx5e_mpwrq_umr_wqebbs(mdev, page_shift, umr_mode); max_wqebbs = mlx5e_get_max_sq_aligned_wqebbs(mdev); /* Sanity check; should never happen, because mlx5e_mpwrq_umr_wqebbs is * calculated from mlx5e_get_max_sq_aligned_wqebbs. */ if (WARN_ON(umr_wqebbs > max_wqebbs)) return false; return true; } void mlx5e_update_carrier(struct mlx5e_priv *priv) { struct mlx5_core_dev *mdev = priv->mdev; u8 port_state; bool up; port_state = mlx5_query_vport_state(mdev, MLX5_VPORT_STATE_OP_MOD_VNIC_VPORT, 0); up = port_state == VPORT_STATE_UP; if (up == netif_carrier_ok(priv->netdev)) netif_carrier_event(priv->netdev); if (up) { netdev_info(priv->netdev, "Link up\n"); netif_carrier_on(priv->netdev); } else { netdev_info(priv->netdev, "Link down\n"); netif_carrier_off(priv->netdev); } } static void mlx5e_update_carrier_work(struct work_struct *work) { struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv, update_carrier_work); mutex_lock(&priv->state_lock); if (test_bit(MLX5E_STATE_OPENED, &priv->state)) if (priv->profile->update_carrier) priv->profile->update_carrier(priv); mutex_unlock(&priv->state_lock); } static void mlx5e_update_stats_work(struct work_struct *work) { struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv, update_stats_work); mutex_lock(&priv->state_lock); priv->profile->update_stats(priv); mutex_unlock(&priv->state_lock); } void mlx5e_queue_update_stats(struct mlx5e_priv *priv) { if (!priv->profile->update_stats) return; if (unlikely(test_bit(MLX5E_STATE_DESTROYING, &priv->state))) return; queue_work(priv->wq, &priv->update_stats_work); } static int async_event(struct notifier_block *nb, unsigned long event, void *data) { struct mlx5e_priv *priv = container_of(nb, struct mlx5e_priv, events_nb); struct mlx5_eqe *eqe = data; if (event != MLX5_EVENT_TYPE_PORT_CHANGE) return NOTIFY_DONE; switch (eqe->sub_type) { case MLX5_PORT_CHANGE_SUBTYPE_DOWN: case MLX5_PORT_CHANGE_SUBTYPE_ACTIVE: queue_work(priv->wq, &priv->update_carrier_work); break; default: return NOTIFY_DONE; } return NOTIFY_OK; } static void mlx5e_enable_async_events(struct mlx5e_priv *priv) { priv->events_nb.notifier_call = async_event; mlx5_notifier_register(priv->mdev, &priv->events_nb); } static void mlx5e_disable_async_events(struct mlx5e_priv *priv) { mlx5_notifier_unregister(priv->mdev, &priv->events_nb); } static int mlx5e_devcom_event_mpv(int event, void *my_data, void *event_data) { struct mlx5e_priv *slave_priv = my_data; switch (event) { case MPV_DEVCOM_MASTER_UP: mlx5_devcom_comp_set_ready(slave_priv->devcom, true); break; case MPV_DEVCOM_MASTER_DOWN: /* no need for comp set ready false since we unregister after * and it hurts cleanup flow. */ break; case MPV_DEVCOM_IPSEC_MASTER_UP: case MPV_DEVCOM_IPSEC_MASTER_DOWN: mlx5e_ipsec_handle_mpv_event(event, my_data, event_data); break; } return 0; } static int mlx5e_devcom_init_mpv(struct mlx5e_priv *priv, u64 *data) { priv->devcom = mlx5_devcom_register_component(priv->mdev->priv.devc, MLX5_DEVCOM_MPV, *data, mlx5e_devcom_event_mpv, priv); if (IS_ERR_OR_NULL(priv->devcom)) return -EOPNOTSUPP; if (mlx5_core_is_mp_master(priv->mdev)) { mlx5_devcom_send_event(priv->devcom, MPV_DEVCOM_MASTER_UP, MPV_DEVCOM_MASTER_UP, priv); mlx5e_ipsec_send_event(priv, MPV_DEVCOM_IPSEC_MASTER_UP); } return 0; } static void mlx5e_devcom_cleanup_mpv(struct mlx5e_priv *priv) { if (IS_ERR_OR_NULL(priv->devcom)) return; if (mlx5_core_is_mp_master(priv->mdev)) { mlx5_devcom_send_event(priv->devcom, MPV_DEVCOM_MASTER_DOWN, MPV_DEVCOM_MASTER_DOWN, priv); mlx5e_ipsec_send_event(priv, MPV_DEVCOM_IPSEC_MASTER_DOWN); } mlx5_devcom_unregister_component(priv->devcom); } static int blocking_event(struct notifier_block *nb, unsigned long event, void *data) { struct mlx5e_priv *priv = container_of(nb, struct mlx5e_priv, blocking_events_nb); struct mlx5_devlink_trap_event_ctx *trap_event_ctx = data; int err; switch (event) { case MLX5_DRIVER_EVENT_TYPE_TRAP: err = mlx5e_handle_trap_event(priv, trap_event_ctx->trap); if (err) { trap_event_ctx->err = err; return NOTIFY_BAD; } break; case MLX5_DRIVER_EVENT_AFFILIATION_DONE: if (mlx5e_devcom_init_mpv(priv, data)) return NOTIFY_BAD; break; case MLX5_DRIVER_EVENT_AFFILIATION_REMOVED: mlx5e_devcom_cleanup_mpv(priv); break; default: return NOTIFY_DONE; } return NOTIFY_OK; } static void mlx5e_enable_blocking_events(struct mlx5e_priv *priv) { priv->blocking_events_nb.notifier_call = blocking_event; mlx5_blocking_notifier_register(priv->mdev, &priv->blocking_events_nb); } static void mlx5e_disable_blocking_events(struct mlx5e_priv *priv) { mlx5_blocking_notifier_unregister(priv->mdev, &priv->blocking_events_nb); } static u16 mlx5e_mpwrq_umr_octowords(u32 entries, enum mlx5e_mpwrq_umr_mode umr_mode) { u8 umr_entry_size = mlx5e_mpwrq_umr_entry_size(umr_mode); u32 sz; sz = ALIGN(entries * umr_entry_size, MLX5_UMR_FLEX_ALIGNMENT); return sz / MLX5_OCTWORD; } static inline void mlx5e_build_umr_wqe(struct mlx5e_rq *rq, struct mlx5e_icosq *sq, struct mlx5e_umr_wqe *wqe) { struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl; struct mlx5_wqe_umr_ctrl_seg *ucseg = &wqe->uctrl; u16 octowords; u8 ds_cnt; ds_cnt = DIV_ROUND_UP(mlx5e_mpwrq_umr_wqe_sz(rq->mdev, rq->mpwqe.page_shift, rq->mpwqe.umr_mode), MLX5_SEND_WQE_DS); cseg->qpn_ds = cpu_to_be32((sq->sqn << MLX5_WQE_CTRL_QPN_SHIFT) | ds_cnt); cseg->umr_mkey = rq->mpwqe.umr_mkey_be; ucseg->flags = MLX5_UMR_TRANSLATION_OFFSET_EN | MLX5_UMR_INLINE; octowords = mlx5e_mpwrq_umr_octowords(rq->mpwqe.pages_per_wqe, rq->mpwqe.umr_mode); ucseg->xlt_octowords = cpu_to_be16(octowords); ucseg->mkey_mask = cpu_to_be64(MLX5_MKEY_MASK_FREE); } static int mlx5e_rq_shampo_hd_alloc(struct mlx5e_rq *rq, int node) { rq->mpwqe.shampo = kvzalloc_node(sizeof(*rq->mpwqe.shampo), GFP_KERNEL, node); if (!rq->mpwqe.shampo) return -ENOMEM; return 0; } static void mlx5e_rq_shampo_hd_free(struct mlx5e_rq *rq) { kvfree(rq->mpwqe.shampo); } static int mlx5e_rq_shampo_hd_info_alloc(struct mlx5e_rq *rq, int node) { struct mlx5e_shampo_hd *shampo = rq->mpwqe.shampo; shampo->bitmap = bitmap_zalloc_node(shampo->hd_per_wq, GFP_KERNEL, node); shampo->info = kvzalloc_node(array_size(shampo->hd_per_wq, sizeof(*shampo->info)), GFP_KERNEL, node); shampo->pages = kvzalloc_node(array_size(shampo->hd_per_wq, sizeof(*shampo->pages)), GFP_KERNEL, node); if (!shampo->bitmap || !shampo->info || !shampo->pages) goto err_nomem; return 0; err_nomem: kvfree(shampo->info); kvfree(shampo->bitmap); kvfree(shampo->pages); return -ENOMEM; } static void mlx5e_rq_shampo_hd_info_free(struct mlx5e_rq *rq) { kvfree(rq->mpwqe.shampo->bitmap); kvfree(rq->mpwqe.shampo->info); kvfree(rq->mpwqe.shampo->pages); } static int mlx5e_rq_alloc_mpwqe_info(struct mlx5e_rq *rq, int node) { int wq_sz = mlx5_wq_ll_get_size(&rq->mpwqe.wq); size_t alloc_size; alloc_size = array_size(wq_sz, struct_size(rq->mpwqe.info, alloc_units.frag_pages, rq->mpwqe.pages_per_wqe)); rq->mpwqe.info = kvzalloc_node(alloc_size, GFP_KERNEL, node); if (!rq->mpwqe.info) return -ENOMEM; /* For deferred page release (release right before alloc), make sure * that on first round release is not called. */ for (int i = 0; i < wq_sz; i++) { struct mlx5e_mpw_info *wi = mlx5e_get_mpw_info(rq, i); bitmap_fill(wi->skip_release_bitmap, rq->mpwqe.pages_per_wqe); } mlx5e_build_umr_wqe(rq, rq->icosq, &rq->mpwqe.umr_wqe); return 0; } static u8 mlx5e_mpwrq_access_mode(enum mlx5e_mpwrq_umr_mode umr_mode) { switch (umr_mode) { case MLX5E_MPWRQ_UMR_MODE_ALIGNED: return MLX5_MKC_ACCESS_MODE_MTT; case MLX5E_MPWRQ_UMR_MODE_UNALIGNED: return MLX5_MKC_ACCESS_MODE_KSM; case MLX5E_MPWRQ_UMR_MODE_OVERSIZED: return MLX5_MKC_ACCESS_MODE_KLMS; case MLX5E_MPWRQ_UMR_MODE_TRIPLE: return MLX5_MKC_ACCESS_MODE_KSM; } WARN_ONCE(1, "MPWRQ UMR mode %d is not known\n", umr_mode); return 0; } static int mlx5e_create_umr_mkey(struct mlx5_core_dev *mdev, u32 npages, u8 page_shift, u32 *umr_mkey, dma_addr_t filler_addr, enum mlx5e_mpwrq_umr_mode umr_mode, u32 xsk_chunk_size) { struct mlx5_mtt *mtt; struct mlx5_ksm *ksm; struct mlx5_klm *klm; u32 octwords; int inlen; void *mkc; u32 *in; int err; int i; if ((umr_mode == MLX5E_MPWRQ_UMR_MODE_UNALIGNED || umr_mode == MLX5E_MPWRQ_UMR_MODE_TRIPLE) && !MLX5_CAP_GEN(mdev, fixed_buffer_size)) { mlx5_core_warn(mdev, "Unaligned AF_XDP requires fixed_buffer_size capability\n"); return -EINVAL; } octwords = mlx5e_mpwrq_umr_octowords(npages, umr_mode); inlen = MLX5_FLEXIBLE_INLEN(mdev, MLX5_ST_SZ_BYTES(create_mkey_in), MLX5_OCTWORD, octwords); if (inlen < 0) return inlen; in = kvzalloc(inlen, GFP_KERNEL); if (!in) return -ENOMEM; mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry); MLX5_SET(mkc, mkc, free, 1); MLX5_SET(mkc, mkc, umr_en, 1); MLX5_SET(mkc, mkc, lw, 1); MLX5_SET(mkc, mkc, lr, 1); MLX5_SET(mkc, mkc, access_mode_1_0, mlx5e_mpwrq_access_mode(umr_mode)); mlx5e_mkey_set_relaxed_ordering(mdev, mkc); MLX5_SET(mkc, mkc, qpn, 0xffffff); MLX5_SET(mkc, mkc, pd, mdev->mlx5e_res.hw_objs.pdn); MLX5_SET64(mkc, mkc, len, npages << page_shift); MLX5_SET(mkc, mkc, translations_octword_size, octwords); if (umr_mode == MLX5E_MPWRQ_UMR_MODE_TRIPLE) MLX5_SET(mkc, mkc, log_page_size, page_shift - 2); else if (umr_mode != MLX5E_MPWRQ_UMR_MODE_OVERSIZED) MLX5_SET(mkc, mkc, log_page_size, page_shift); MLX5_SET(create_mkey_in, in, translations_octword_actual_size, octwords); /* Initialize the mkey with all MTTs pointing to a default * page (filler_addr). When the channels are activated, UMR * WQEs will redirect the RX WQEs to the actual memory from * the RQ's pool, while the gaps (wqe_overflow) remain mapped * to the default page. */ switch (umr_mode) { case MLX5E_MPWRQ_UMR_MODE_OVERSIZED: klm = MLX5_ADDR_OF(create_mkey_in, in, klm_pas_mtt); for (i = 0; i < npages; i++) { klm[i << 1] = (struct mlx5_klm) { .va = cpu_to_be64(filler_addr), .bcount = cpu_to_be32(xsk_chunk_size), .key = cpu_to_be32(mdev->mlx5e_res.hw_objs.mkey), }; klm[(i << 1) + 1] = (struct mlx5_klm) { .va = cpu_to_be64(filler_addr), .bcount = cpu_to_be32((1 << page_shift) - xsk_chunk_size), .key = cpu_to_be32(mdev->mlx5e_res.hw_objs.mkey), }; } break; case MLX5E_MPWRQ_UMR_MODE_UNALIGNED: ksm = MLX5_ADDR_OF(create_mkey_in, in, klm_pas_mtt); for (i = 0; i < npages; i++) ksm[i] = (struct mlx5_ksm) { .key = cpu_to_be32(mdev->mlx5e_res.hw_objs.mkey), .va = cpu_to_be64(filler_addr), }; break; case MLX5E_MPWRQ_UMR_MODE_ALIGNED: mtt = MLX5_ADDR_OF(create_mkey_in, in, klm_pas_mtt); for (i = 0; i < npages; i++) mtt[i] = (struct mlx5_mtt) { .ptag = cpu_to_be64(filler_addr), }; break; case MLX5E_MPWRQ_UMR_MODE_TRIPLE: ksm = MLX5_ADDR_OF(create_mkey_in, in, klm_pas_mtt); for (i = 0; i < npages * 4; i++) { ksm[i] = (struct mlx5_ksm) { .key = cpu_to_be32(mdev->mlx5e_res.hw_objs.mkey), .va = cpu_to_be64(filler_addr), }; } break; } err = mlx5_core_create_mkey(mdev, umr_mkey, in, inlen); kvfree(in); return err; } static int mlx5e_create_umr_klm_mkey(struct mlx5_core_dev *mdev, u64 nentries, u32 *umr_mkey) { int inlen; void *mkc; u32 *in; int err; inlen = MLX5_ST_SZ_BYTES(create_mkey_in); in = kvzalloc(inlen, GFP_KERNEL); if (!in) return -ENOMEM; mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry); MLX5_SET(mkc, mkc, free, 1); MLX5_SET(mkc, mkc, umr_en, 1); MLX5_SET(mkc, mkc, lw, 1); MLX5_SET(mkc, mkc, lr, 1); MLX5_SET(mkc, mkc, access_mode_1_0, MLX5_MKC_ACCESS_MODE_KLMS); mlx5e_mkey_set_relaxed_ordering(mdev, mkc); MLX5_SET(mkc, mkc, qpn, 0xffffff); MLX5_SET(mkc, mkc, pd, mdev->mlx5e_res.hw_objs.pdn); MLX5_SET(mkc, mkc, translations_octword_size, nentries); MLX5_SET(mkc, mkc, length64, 1); err = mlx5_core_create_mkey(mdev, umr_mkey, in, inlen); kvfree(in); return err; } static int mlx5e_create_rq_umr_mkey(struct mlx5_core_dev *mdev, struct mlx5e_rq *rq) { u32 xsk_chunk_size = rq->xsk_pool ? rq->xsk_pool->chunk_size : 0; u32 wq_size = mlx5_wq_ll_get_size(&rq->mpwqe.wq); u32 num_entries, max_num_entries; u32 umr_mkey; int err; max_num_entries = mlx5e_mpwrq_max_num_entries(mdev, rq->mpwqe.umr_mode); /* Shouldn't overflow, the result is at most MLX5E_MAX_RQ_NUM_MTTS. */ if (WARN_ON_ONCE(check_mul_overflow(wq_size, (u32)rq->mpwqe.mtts_per_wqe, &num_entries) || num_entries > max_num_entries)) mlx5_core_err(mdev, "%s: multiplication overflow: %u * %u > %u\n", __func__, wq_size, rq->mpwqe.mtts_per_wqe, max_num_entries); err = mlx5e_create_umr_mkey(mdev, num_entries, rq->mpwqe.page_shift, &umr_mkey, rq->wqe_overflow.addr, rq->mpwqe.umr_mode, xsk_chunk_size); rq->mpwqe.umr_mkey_be = cpu_to_be32(umr_mkey); return err; } static int mlx5e_create_rq_hd_umr_mkey(struct mlx5_core_dev *mdev, struct mlx5e_rq *rq) { u32 max_klm_size = BIT(MLX5_CAP_GEN(mdev, log_max_klm_list_size)); if (max_klm_size < rq->mpwqe.shampo->hd_per_wq) { mlx5_core_err(mdev, "max klm list size 0x%x is smaller than shampo header buffer list size 0x%x\n", max_klm_size, rq->mpwqe.shampo->hd_per_wq); return -EINVAL; } return mlx5e_create_umr_klm_mkey(mdev, rq->mpwqe.shampo->hd_per_wq, &rq->mpwqe.shampo->mkey); } static void mlx5e_init_frags_partition(struct mlx5e_rq *rq) { struct mlx5e_wqe_frag_info next_frag = {}; struct mlx5e_wqe_frag_info *prev = NULL; int i; WARN_ON(rq->xsk_pool); next_frag.frag_page = &rq->wqe.alloc_units->frag_pages[0]; /* Skip first release due to deferred release. */ next_frag.flags = BIT(MLX5E_WQE_FRAG_SKIP_RELEASE); for (i = 0; i < mlx5_wq_cyc_get_size(&rq->wqe.wq); i++) { struct mlx5e_rq_frag_info *frag_info = &rq->wqe.info.arr[0]; struct mlx5e_wqe_frag_info *frag = &rq->wqe.frags[i << rq->wqe.info.log_num_frags]; int f; for (f = 0; f < rq->wqe.info.num_frags; f++, frag++) { if (next_frag.offset + frag_info[f].frag_stride > PAGE_SIZE) { /* Pages are assigned at runtime. */ next_frag.frag_page++; next_frag.offset = 0; if (prev) prev->flags |= BIT(MLX5E_WQE_FRAG_LAST_IN_PAGE); } *frag = next_frag; /* prepare next */ next_frag.offset += frag_info[f].frag_stride; prev = frag; } } if (prev) prev->flags |= BIT(MLX5E_WQE_FRAG_LAST_IN_PAGE); } static void mlx5e_init_xsk_buffs(struct mlx5e_rq *rq) { int i; /* Assumptions used by XSK batched allocator. */ WARN_ON(rq->wqe.info.num_frags != 1); WARN_ON(rq->wqe.info.log_num_frags != 0); WARN_ON(rq->wqe.info.arr[0].frag_stride != PAGE_SIZE); /* Considering the above assumptions a fragment maps to a single * xsk_buff. */ for (i = 0; i < mlx5_wq_cyc_get_size(&rq->wqe.wq); i++) { rq->wqe.frags[i].xskp = &rq->wqe.alloc_units->xsk_buffs[i]; /* Skip first release due to deferred release as WQES are * not allocated yet. */ rq->wqe.frags[i].flags |= BIT(MLX5E_WQE_FRAG_SKIP_RELEASE); } } static int mlx5e_init_wqe_alloc_info(struct mlx5e_rq *rq, int node) { int wq_sz = mlx5_wq_cyc_get_size(&rq->wqe.wq); int len = wq_sz << rq->wqe.info.log_num_frags; struct mlx5e_wqe_frag_info *frags; union mlx5e_alloc_units *aus; int aus_sz; if (rq->xsk_pool) aus_sz = sizeof(*aus->xsk_buffs); else aus_sz = sizeof(*aus->frag_pages); aus = kvzalloc_node(array_size(len, aus_sz), GFP_KERNEL, node); if (!aus) return -ENOMEM; frags = kvzalloc_node(array_size(len, sizeof(*frags)), GFP_KERNEL, node); if (!frags) { kvfree(aus); return -ENOMEM; } rq->wqe.alloc_units = aus; rq->wqe.frags = frags; if (rq->xsk_pool) mlx5e_init_xsk_buffs(rq); else mlx5e_init_frags_partition(rq); return 0; } static void mlx5e_free_wqe_alloc_info(struct mlx5e_rq *rq) { kvfree(rq->wqe.frags); kvfree(rq->wqe.alloc_units); } static void mlx5e_rq_err_cqe_work(struct work_struct *recover_work) { struct mlx5e_rq *rq = container_of(recover_work, struct mlx5e_rq, recover_work); mlx5e_reporter_rq_cqe_err(rq); } static int mlx5e_alloc_mpwqe_rq_drop_page(struct mlx5e_rq *rq) { rq->wqe_overflow.page = alloc_page(GFP_KERNEL); if (!rq->wqe_overflow.page) return -ENOMEM; rq->wqe_overflow.addr = dma_map_page(rq->pdev, rq->wqe_overflow.page, 0, PAGE_SIZE, rq->buff.map_dir); if (dma_mapping_error(rq->pdev, rq->wqe_overflow.addr)) { __free_page(rq->wqe_overflow.page); return -ENOMEM; } return 0; } static void mlx5e_free_mpwqe_rq_drop_page(struct mlx5e_rq *rq) { dma_unmap_page(rq->pdev, rq->wqe_overflow.addr, PAGE_SIZE, rq->buff.map_dir); __free_page(rq->wqe_overflow.page); } static int mlx5e_init_rxq_rq(struct mlx5e_channel *c, struct mlx5e_params *params, u32 xdp_frag_size, struct mlx5e_rq *rq) { struct mlx5_core_dev *mdev = c->mdev; int err; rq->wq_type = params->rq_wq_type; rq->pdev = c->pdev; rq->netdev = c->netdev; rq->priv = c->priv; rq->tstamp = c->tstamp; rq->clock = &mdev->clock; rq->icosq = &c->icosq; rq->ix = c->ix; rq->channel = c; rq->mdev = mdev; rq->hw_mtu = MLX5E_SW2HW_MTU(params, params->sw_mtu) - ETH_FCS_LEN * !params->scatter_fcs_en; rq->xdpsq = &c->rq_xdpsq; rq->stats = &c->priv->channel_stats[c->ix]->rq; rq->ptp_cyc2time = mlx5_rq_ts_translator(mdev); err = mlx5e_rq_set_handlers(rq, params, NULL); if (err) return err; return __xdp_rxq_info_reg(&rq->xdp_rxq, rq->netdev, rq->ix, c->napi.napi_id, xdp_frag_size); } static int mlx5_rq_shampo_alloc(struct mlx5_core_dev *mdev, struct mlx5e_params *params, struct mlx5e_rq_param *rqp, struct mlx5e_rq *rq, u32 *pool_size, int node) { void *wqc = MLX5_ADDR_OF(rqc, rqp->rqc, wq); int wq_size; int err; if (!test_bit(MLX5E_RQ_STATE_SHAMPO, &rq->state)) return 0; err = mlx5e_rq_shampo_hd_alloc(rq, node); if (err) goto out; rq->mpwqe.shampo->hd_per_wq = mlx5e_shampo_hd_per_wq(mdev, params, rqp); err = mlx5e_create_rq_hd_umr_mkey(mdev, rq); if (err) goto err_shampo_hd; err = mlx5e_rq_shampo_hd_info_alloc(rq, node); if (err) goto err_shampo_info; rq->hw_gro_data = kvzalloc_node(sizeof(*rq->hw_gro_data), GFP_KERNEL, node); if (!rq->hw_gro_data) { err = -ENOMEM; goto err_hw_gro_data; } rq->mpwqe.shampo->key = cpu_to_be32(rq->mpwqe.shampo->mkey); rq->mpwqe.shampo->hd_per_wqe = mlx5e_shampo_hd_per_wqe(mdev, params, rqp); wq_size = BIT(MLX5_GET(wq, wqc, log_wq_sz)); *pool_size += (rq->mpwqe.shampo->hd_per_wqe * wq_size) / MLX5E_SHAMPO_WQ_HEADER_PER_PAGE; return 0; err_hw_gro_data: mlx5e_rq_shampo_hd_info_free(rq); err_shampo_info: mlx5_core_destroy_mkey(mdev, rq->mpwqe.shampo->mkey); err_shampo_hd: mlx5e_rq_shampo_hd_free(rq); out: return err; } static void mlx5e_rq_free_shampo(struct mlx5e_rq *rq) { if (!test_bit(MLX5E_RQ_STATE_SHAMPO, &rq->state)) return; kvfree(rq->hw_gro_data); mlx5e_rq_shampo_hd_info_free(rq); mlx5_core_destroy_mkey(rq->mdev, rq->mpwqe.shampo->mkey); mlx5e_rq_shampo_hd_free(rq); } static int mlx5e_alloc_rq(struct mlx5e_params *params, struct mlx5e_xsk_param *xsk, struct mlx5e_rq_param *rqp, int node, struct mlx5e_rq *rq) { struct mlx5_core_dev *mdev = rq->mdev; void *rqc = rqp->rqc; void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq); u32 pool_size; int wq_sz; int err; int i; rqp->wq.db_numa_node = node; INIT_WORK(&rq->recover_work, mlx5e_rq_err_cqe_work); if (params->xdp_prog) bpf_prog_inc(params->xdp_prog); RCU_INIT_POINTER(rq->xdp_prog, params->xdp_prog); rq->buff.map_dir = params->xdp_prog ? DMA_BIDIRECTIONAL : DMA_FROM_DEVICE; rq->buff.headroom = mlx5e_get_rq_headroom(mdev, params, xsk); pool_size = 1 << params->log_rq_mtu_frames; rq->mkey_be = cpu_to_be32(mdev->mlx5e_res.hw_objs.mkey); switch (rq->wq_type) { case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ: err = mlx5_wq_ll_create(mdev, &rqp->wq, rqc_wq, &rq->mpwqe.wq, &rq->wq_ctrl); if (err) goto err_rq_xdp_prog; err = mlx5e_alloc_mpwqe_rq_drop_page(rq); if (err) goto err_rq_wq_destroy; rq->mpwqe.wq.db = &rq->mpwqe.wq.db[MLX5_RCV_DBR]; wq_sz = mlx5_wq_ll_get_size(&rq->mpwqe.wq); rq->mpwqe.page_shift = mlx5e_mpwrq_page_shift(mdev, xsk); rq->mpwqe.umr_mode = mlx5e_mpwrq_umr_mode(mdev, xsk); rq->mpwqe.pages_per_wqe = mlx5e_mpwrq_pages_per_wqe(mdev, rq->mpwqe.page_shift, rq->mpwqe.umr_mode); rq->mpwqe.umr_wqebbs = mlx5e_mpwrq_umr_wqebbs(mdev, rq->mpwqe.page_shift, rq->mpwqe.umr_mode); rq->mpwqe.mtts_per_wqe = mlx5e_mpwrq_mtts_per_wqe(mdev, rq->mpwqe.page_shift, rq->mpwqe.umr_mode); pool_size = rq->mpwqe.pages_per_wqe << mlx5e_mpwqe_get_log_rq_size(mdev, params, xsk); if (!mlx5e_rx_mpwqe_is_linear_skb(mdev, params, xsk) && params->xdp_prog) pool_size *= 2; /* additional page per packet for the linear part */ rq->mpwqe.log_stride_sz = mlx5e_mpwqe_get_log_stride_size(mdev, params, xsk); rq->mpwqe.num_strides = BIT(mlx5e_mpwqe_get_log_num_strides(mdev, params, xsk)); rq->mpwqe.min_wqe_bulk = mlx5e_mpwqe_get_min_wqe_bulk(wq_sz); rq->buff.frame0_sz = (1 << rq->mpwqe.log_stride_sz); err = mlx5e_create_rq_umr_mkey(mdev, rq); if (err) goto err_rq_drop_page; err = mlx5e_rq_alloc_mpwqe_info(rq, node); if (err) goto err_rq_mkey; err = mlx5_rq_shampo_alloc(mdev, params, rqp, rq, &pool_size, node); if (err) goto err_free_mpwqe_info; break; default: /* MLX5_WQ_TYPE_CYCLIC */ err = mlx5_wq_cyc_create(mdev, &rqp->wq, rqc_wq, &rq->wqe.wq, &rq->wq_ctrl); if (err) goto err_rq_xdp_prog; rq->wqe.wq.db = &rq->wqe.wq.db[MLX5_RCV_DBR]; wq_sz = mlx5_wq_cyc_get_size(&rq->wqe.wq); rq->wqe.info = rqp->frags_info; rq->buff.frame0_sz = rq->wqe.info.arr[0].frag_stride; err = mlx5e_init_wqe_alloc_info(rq, node); if (err) goto err_rq_wq_destroy; } if (xsk) { err = xdp_rxq_info_reg_mem_model(&rq->xdp_rxq, MEM_TYPE_XSK_BUFF_POOL, NULL); xsk_pool_set_rxq_info(rq->xsk_pool, &rq->xdp_rxq); } else { /* Create a page_pool and register it with rxq */ struct page_pool_params pp_params = { 0 }; pp_params.order = 0; pp_params.flags = PP_FLAG_DMA_MAP | PP_FLAG_DMA_SYNC_DEV; pp_params.pool_size = pool_size; pp_params.nid = node; pp_params.dev = rq->pdev; pp_params.napi = rq->cq.napi; pp_params.dma_dir = rq->buff.map_dir; pp_params.max_len = PAGE_SIZE; /* page_pool can be used even when there is no rq->xdp_prog, * given page_pool does not handle DMA mapping there is no * required state to clear. And page_pool gracefully handle * elevated refcnt. */ rq->page_pool = page_pool_create(&pp_params); if (IS_ERR(rq->page_pool)) { err = PTR_ERR(rq->page_pool); rq->page_pool = NULL; goto err_free_by_rq_type; } if (xdp_rxq_info_is_reg(&rq->xdp_rxq)) err = xdp_rxq_info_reg_mem_model(&rq->xdp_rxq, MEM_TYPE_PAGE_POOL, rq->page_pool); } if (err) goto err_destroy_page_pool; for (i = 0; i < wq_sz; i++) { if (rq->wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ) { struct mlx5e_rx_wqe_ll *wqe = mlx5_wq_ll_get_wqe(&rq->mpwqe.wq, i); u32 byte_count = rq->mpwqe.num_strides << rq->mpwqe.log_stride_sz; u64 dma_offset = mul_u32_u32(i, rq->mpwqe.mtts_per_wqe) << rq->mpwqe.page_shift; u16 headroom = test_bit(MLX5E_RQ_STATE_SHAMPO, &rq->state) ? 0 : rq->buff.headroom; wqe->data[0].addr = cpu_to_be64(dma_offset + headroom); wqe->data[0].byte_count = cpu_to_be32(byte_count); wqe->data[0].lkey = rq->mpwqe.umr_mkey_be; } else { struct mlx5e_rx_wqe_cyc *wqe = mlx5_wq_cyc_get_wqe(&rq->wqe.wq, i); int f; for (f = 0; f < rq->wqe.info.num_frags; f++) { u32 frag_size = rq->wqe.info.arr[f].frag_size | MLX5_HW_START_PADDING; wqe->data[f].byte_count = cpu_to_be32(frag_size); wqe->data[f].lkey = rq->mkey_be; } /* check if num_frags is not a pow of two */ if (rq->wqe.info.num_frags < (1 << rq->wqe.info.log_num_frags)) { wqe->data[f].byte_count = 0; wqe->data[f].lkey = params->terminate_lkey_be; wqe->data[f].addr = 0; } } } INIT_WORK(&rq->dim.work, mlx5e_rx_dim_work); switch (params->rx_cq_moderation.cq_period_mode) { case MLX5_CQ_PERIOD_MODE_START_FROM_CQE: rq->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_CQE; break; case MLX5_CQ_PERIOD_MODE_START_FROM_EQE: default: rq->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE; } return 0; err_destroy_page_pool: page_pool_destroy(rq->page_pool); err_free_by_rq_type: switch (rq->wq_type) { case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ: mlx5e_rq_free_shampo(rq); err_free_mpwqe_info: kvfree(rq->mpwqe.info); err_rq_mkey: mlx5_core_destroy_mkey(mdev, be32_to_cpu(rq->mpwqe.umr_mkey_be)); err_rq_drop_page: mlx5e_free_mpwqe_rq_drop_page(rq); break; default: /* MLX5_WQ_TYPE_CYCLIC */ mlx5e_free_wqe_alloc_info(rq); } err_rq_wq_destroy: mlx5_wq_destroy(&rq->wq_ctrl); err_rq_xdp_prog: if (params->xdp_prog) bpf_prog_put(params->xdp_prog); return err; } static void mlx5e_free_rq(struct mlx5e_rq *rq) { struct bpf_prog *old_prog; if (xdp_rxq_info_is_reg(&rq->xdp_rxq)) { old_prog = rcu_dereference_protected(rq->xdp_prog, lockdep_is_held(&rq->priv->state_lock)); if (old_prog) bpf_prog_put(old_prog); } switch (rq->wq_type) { case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ: kvfree(rq->mpwqe.info); mlx5_core_destroy_mkey(rq->mdev, be32_to_cpu(rq->mpwqe.umr_mkey_be)); mlx5e_free_mpwqe_rq_drop_page(rq); mlx5e_rq_free_shampo(rq); break; default: /* MLX5_WQ_TYPE_CYCLIC */ mlx5e_free_wqe_alloc_info(rq); } xdp_rxq_info_unreg(&rq->xdp_rxq); page_pool_destroy(rq->page_pool); mlx5_wq_destroy(&rq->wq_ctrl); } int mlx5e_create_rq(struct mlx5e_rq *rq, struct mlx5e_rq_param *param) { struct mlx5_core_dev *mdev = rq->mdev; u8 ts_format; void *in; void *rqc; void *wq; int inlen; int err; inlen = MLX5_ST_SZ_BYTES(create_rq_in) + sizeof(u64) * rq->wq_ctrl.buf.npages; in = kvzalloc(inlen, GFP_KERNEL); if (!in) return -ENOMEM; ts_format = mlx5_is_real_time_rq(mdev) ? MLX5_TIMESTAMP_FORMAT_REAL_TIME : MLX5_TIMESTAMP_FORMAT_FREE_RUNNING; rqc = MLX5_ADDR_OF(create_rq_in, in, ctx); wq = MLX5_ADDR_OF(rqc, rqc, wq); memcpy(rqc, param->rqc, sizeof(param->rqc)); MLX5_SET(rqc, rqc, cqn, rq->cq.mcq.cqn); MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST); MLX5_SET(rqc, rqc, ts_format, ts_format); MLX5_SET(wq, wq, log_wq_pg_sz, rq->wq_ctrl.buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT); MLX5_SET64(wq, wq, dbr_addr, rq->wq_ctrl.db.dma); if (test_bit(MLX5E_RQ_STATE_SHAMPO, &rq->state)) { MLX5_SET(wq, wq, log_headers_buffer_entry_num, order_base_2(rq->mpwqe.shampo->hd_per_wq)); MLX5_SET(wq, wq, headers_mkey, rq->mpwqe.shampo->mkey); } mlx5_fill_page_frag_array(&rq->wq_ctrl.buf, (__be64 *)MLX5_ADDR_OF(wq, wq, pas)); err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn); kvfree(in); return err; } static int mlx5e_modify_rq_state(struct mlx5e_rq *rq, int curr_state, int next_state) { struct mlx5_core_dev *mdev = rq->mdev; void *in; void *rqc; int inlen; int err; inlen = MLX5_ST_SZ_BYTES(modify_rq_in); in = kvzalloc(inlen, GFP_KERNEL); if (!in) return -ENOMEM; if (curr_state == MLX5_RQC_STATE_RST && next_state == MLX5_RQC_STATE_RDY) mlx5e_rqwq_reset(rq); rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx); MLX5_SET(modify_rq_in, in, rq_state, curr_state); MLX5_SET(rqc, rqc, state, next_state); err = mlx5_core_modify_rq(mdev, rq->rqn, in); kvfree(in); return err; } static void mlx5e_flush_rq_cq(struct mlx5e_rq *rq) { struct mlx5_cqwq *cqwq = &rq->cq.wq; struct mlx5_cqe64 *cqe; if (test_bit(MLX5E_RQ_STATE_MINI_CQE_ENHANCED, &rq->state)) { while ((cqe = mlx5_cqwq_get_cqe_enahnced_comp(cqwq))) mlx5_cqwq_pop(cqwq); } else { while ((cqe = mlx5_cqwq_get_cqe(cqwq))) mlx5_cqwq_pop(cqwq); } mlx5_cqwq_update_db_record(cqwq); } int mlx5e_flush_rq(struct mlx5e_rq *rq, int curr_state) { struct net_device *dev = rq->netdev; int err; err = mlx5e_modify_rq_state(rq, curr_state, MLX5_RQC_STATE_RST); if (err) { netdev_err(dev, "Failed to move rq 0x%x to reset\n", rq->rqn); return err; } mlx5e_free_rx_descs(rq); mlx5e_flush_rq_cq(rq); err = mlx5e_modify_rq_state(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY); if (err) { netdev_err(dev, "Failed to move rq 0x%x to ready\n", rq->rqn); return err; } return 0; } static int mlx5e_modify_rq_vsd(struct mlx5e_rq *rq, bool vsd) { struct mlx5_core_dev *mdev = rq->mdev; void *in; void *rqc; int inlen; int err; inlen = MLX5_ST_SZ_BYTES(modify_rq_in); in = kvzalloc(inlen, GFP_KERNEL); if (!in) return -ENOMEM; rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx); MLX5_SET(modify_rq_in, in, rq_state, MLX5_RQC_STATE_RDY); MLX5_SET64(modify_rq_in, in, modify_bitmask, MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_VSD); MLX5_SET(rqc, rqc, vsd, vsd); MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RDY); err = mlx5_core_modify_rq(mdev, rq->rqn, in); kvfree(in); return err; } void mlx5e_destroy_rq(struct mlx5e_rq *rq) { mlx5_core_destroy_rq(rq->mdev, rq->rqn); } int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq, int wait_time) { unsigned long exp_time = jiffies + msecs_to_jiffies(wait_time); u16 min_wqes = mlx5_min_rx_wqes(rq->wq_type, mlx5e_rqwq_get_size(rq)); do { if (mlx5e_rqwq_get_cur_sz(rq) >= min_wqes) return 0; msleep(20); } while (time_before(jiffies, exp_time)); netdev_warn(rq->netdev, "Failed to get min RX wqes on Channel[%d] RQN[0x%x] wq cur_sz(%d) min_rx_wqes(%d)\n", rq->ix, rq->rqn, mlx5e_rqwq_get_cur_sz(rq), min_wqes); mlx5e_reporter_rx_timeout(rq); return -ETIMEDOUT; } void mlx5e_free_rx_missing_descs(struct mlx5e_rq *rq) { struct mlx5_wq_ll *wq; u16 head; int i; if (rq->wq_type != MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ) return; wq = &rq->mpwqe.wq; head = wq->head; /* Release WQEs that are in missing state: they have been * popped from the list after completion but were not freed * due to deferred release. * Also free the linked-list reserved entry, hence the "+ 1". */ for (i = 0; i < mlx5_wq_ll_missing(wq) + 1; i++) { rq->dealloc_wqe(rq, head); head = mlx5_wq_ll_get_wqe_next_ix(wq, head); } if (test_bit(MLX5E_RQ_STATE_SHAMPO, &rq->state)) { u16 len; len = (rq->mpwqe.shampo->pi - rq->mpwqe.shampo->ci) & (rq->mpwqe.shampo->hd_per_wq - 1); mlx5e_shampo_dealloc_hd(rq, len, rq->mpwqe.shampo->ci, false); rq->mpwqe.shampo->pi = rq->mpwqe.shampo->ci; } rq->mpwqe.actual_wq_head = wq->head; rq->mpwqe.umr_in_progress = 0; rq->mpwqe.umr_completed = 0; } void mlx5e_free_rx_descs(struct mlx5e_rq *rq) { __be16 wqe_ix_be; u16 wqe_ix; if (rq->wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ) { struct mlx5_wq_ll *wq = &rq->mpwqe.wq; mlx5e_free_rx_missing_descs(rq); while (!mlx5_wq_ll_is_empty(wq)) { struct mlx5e_rx_wqe_ll *wqe; wqe_ix_be = *wq->tail_next; wqe_ix = be16_to_cpu(wqe_ix_be); wqe = mlx5_wq_ll_get_wqe(wq, wqe_ix); rq->dealloc_wqe(rq, wqe_ix); mlx5_wq_ll_pop(wq, wqe_ix_be, &wqe->next.next_wqe_index); } if (test_bit(MLX5E_RQ_STATE_SHAMPO, &rq->state)) mlx5e_shampo_dealloc_hd(rq, rq->mpwqe.shampo->hd_per_wq, 0, true); } else { struct mlx5_wq_cyc *wq = &rq->wqe.wq; u16 missing = mlx5_wq_cyc_missing(wq); u16 head = mlx5_wq_cyc_get_head(wq); while (!mlx5_wq_cyc_is_empty(wq)) { wqe_ix = mlx5_wq_cyc_get_tail(wq); rq->dealloc_wqe(rq, wqe_ix); mlx5_wq_cyc_pop(wq); } /* Missing slots might also contain unreleased pages due to * deferred release. */ while (missing--) { wqe_ix = mlx5_wq_cyc_ctr2ix(wq, head++); rq->dealloc_wqe(rq, wqe_ix); } } } int mlx5e_open_rq(struct mlx5e_params *params, struct mlx5e_rq_param *param, struct mlx5e_xsk_param *xsk, int node, struct mlx5e_rq *rq) { struct mlx5_core_dev *mdev = rq->mdev; int err; if (params->packet_merge.type == MLX5E_PACKET_MERGE_SHAMPO) __set_bit(MLX5E_RQ_STATE_SHAMPO, &rq->state); err = mlx5e_alloc_rq(params, xsk, param, node, rq); if (err) return err; err = mlx5e_create_rq(rq, param); if (err) goto err_free_rq; err = mlx5e_modify_rq_state(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY); if (err) goto err_destroy_rq; if (MLX5_CAP_ETH(mdev, cqe_checksum_full)) __set_bit(MLX5E_RQ_STATE_CSUM_FULL, &rq->state); if (params->rx_dim_enabled) __set_bit(MLX5E_RQ_STATE_DIM, &rq->state); /* We disable csum_complete when XDP is enabled since * XDP programs might manipulate packets which will render * skb->checksum incorrect. */ if (MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_NO_CSUM_COMPLETE) || params->xdp_prog) __set_bit(MLX5E_RQ_STATE_NO_CSUM_COMPLETE, &rq->state); /* For CQE compression on striding RQ, use stride index provided by * HW if capability is supported. */ if (MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_STRIDING_RQ) && MLX5_CAP_GEN(mdev, mini_cqe_resp_stride_index)) __set_bit(MLX5E_RQ_STATE_MINI_CQE_HW_STRIDX, &rq->state); /* For enhanced CQE compression packet processing. decompress * session according to the enhanced layout. */ if (MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS) && MLX5_CAP_GEN(mdev, enhanced_cqe_compression)) __set_bit(MLX5E_RQ_STATE_MINI_CQE_ENHANCED, &rq->state); return 0; err_destroy_rq: mlx5e_destroy_rq(rq); err_free_rq: mlx5e_free_rq(rq); return err; } void mlx5e_activate_rq(struct mlx5e_rq *rq) { set_bit(MLX5E_RQ_STATE_ENABLED, &rq->state); } void mlx5e_deactivate_rq(struct mlx5e_rq *rq) { clear_bit(MLX5E_RQ_STATE_ENABLED, &rq->state); synchronize_net(); /* Sync with NAPI to prevent mlx5e_post_rx_wqes. */ } void mlx5e_close_rq(struct mlx5e_rq *rq) { cancel_work_sync(&rq->dim.work); cancel_work_sync(&rq->recover_work); mlx5e_destroy_rq(rq); mlx5e_free_rx_descs(rq); mlx5e_free_rq(rq); } static void mlx5e_free_xdpsq_db(struct mlx5e_xdpsq *sq) { kvfree(sq->db.xdpi_fifo.xi); kvfree(sq->db.wqe_info); } static int mlx5e_alloc_xdpsq_fifo(struct mlx5e_xdpsq *sq, int numa) { struct mlx5e_xdp_info_fifo *xdpi_fifo = &sq->db.xdpi_fifo; int wq_sz = mlx5_wq_cyc_get_size(&sq->wq); int entries; size_t size; /* upper bound for maximum num of entries of all xmit_modes. */ entries = roundup_pow_of_two(wq_sz * MLX5_SEND_WQEBB_NUM_DS * MLX5E_XDP_FIFO_ENTRIES2DS_MAX_RATIO); size = array_size(sizeof(*xdpi_fifo->xi), entries); xdpi_fifo->xi = kvzalloc_node(size, GFP_KERNEL, numa); if (!xdpi_fifo->xi) return -ENOMEM; xdpi_fifo->pc = &sq->xdpi_fifo_pc; xdpi_fifo->cc = &sq->xdpi_fifo_cc; xdpi_fifo->mask = entries - 1; return 0; } static int mlx5e_alloc_xdpsq_db(struct mlx5e_xdpsq *sq, int numa) { int wq_sz = mlx5_wq_cyc_get_size(&sq->wq); size_t size; int err; size = array_size(sizeof(*sq->db.wqe_info), wq_sz); sq->db.wqe_info = kvzalloc_node(size, GFP_KERNEL, numa); if (!sq->db.wqe_info) return -ENOMEM; err = mlx5e_alloc_xdpsq_fifo(sq, numa); if (err) { mlx5e_free_xdpsq_db(sq); return err; } return 0; } static int mlx5e_alloc_xdpsq(struct mlx5e_channel *c, struct mlx5e_params *params, struct xsk_buff_pool *xsk_pool, struct mlx5e_sq_param *param, struct mlx5e_xdpsq *sq, bool is_redirect) { void *sqc_wq = MLX5_ADDR_OF(sqc, param->sqc, wq); struct mlx5_core_dev *mdev = c->mdev; struct mlx5_wq_cyc *wq = &sq->wq; int err; sq->pdev = c->pdev; sq->mkey_be = c->mkey_be; sq->channel = c; sq->uar_map = mdev->mlx5e_res.hw_objs.bfreg.map; sq->min_inline_mode = params->tx_min_inline_mode; sq->hw_mtu = MLX5E_SW2HW_MTU(params, params->sw_mtu) - ETH_FCS_LEN; sq->xsk_pool = xsk_pool; sq->stats = sq->xsk_pool ? &c->priv->channel_stats[c->ix]->xsksq : is_redirect ? &c->priv->channel_stats[c->ix]->xdpsq : &c->priv->channel_stats[c->ix]->rq_xdpsq; sq->stop_room = param->is_mpw ? mlx5e_stop_room_for_mpwqe(mdev) : mlx5e_stop_room_for_max_wqe(mdev); sq->max_sq_mpw_wqebbs = mlx5e_get_max_sq_aligned_wqebbs(mdev); param->wq.db_numa_node = cpu_to_node(c->cpu); err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, wq, &sq->wq_ctrl); if (err) return err; wq->db = &wq->db[MLX5_SND_DBR]; err = mlx5e_alloc_xdpsq_db(sq, cpu_to_node(c->cpu)); if (err) goto err_sq_wq_destroy; return 0; err_sq_wq_destroy: mlx5_wq_destroy(&sq->wq_ctrl); return err; } static void mlx5e_free_xdpsq(struct mlx5e_xdpsq *sq) { mlx5e_free_xdpsq_db(sq); mlx5_wq_destroy(&sq->wq_ctrl); } static void mlx5e_free_icosq_db(struct mlx5e_icosq *sq) { kvfree(sq->db.wqe_info); } static int mlx5e_alloc_icosq_db(struct mlx5e_icosq *sq, int numa) { int wq_sz = mlx5_wq_cyc_get_size(&sq->wq); size_t size; size = array_size(wq_sz, sizeof(*sq->db.wqe_info)); sq->db.wqe_info = kvzalloc_node(size, GFP_KERNEL, numa); if (!sq->db.wqe_info) return -ENOMEM; return 0; } static void mlx5e_icosq_err_cqe_work(struct work_struct *recover_work) { struct mlx5e_icosq *sq = container_of(recover_work, struct mlx5e_icosq, recover_work); mlx5e_reporter_icosq_cqe_err(sq); } static void mlx5e_async_icosq_err_cqe_work(struct work_struct *recover_work) { struct mlx5e_icosq *sq = container_of(recover_work, struct mlx5e_icosq, recover_work); /* Not implemented yet. */ netdev_warn(sq->channel->netdev, "async_icosq recovery is not implemented\n"); } static int mlx5e_alloc_icosq(struct mlx5e_channel *c, struct mlx5e_sq_param *param, struct mlx5e_icosq *sq, work_func_t recover_work_func) { void *sqc_wq = MLX5_ADDR_OF(sqc, param->sqc, wq); struct mlx5_core_dev *mdev = c->mdev; struct mlx5_wq_cyc *wq = &sq->wq; int err; sq->channel = c; sq->uar_map = mdev->mlx5e_res.hw_objs.bfreg.map; sq->reserved_room = param->stop_room; param->wq.db_numa_node = cpu_to_node(c->cpu); err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, wq, &sq->wq_ctrl); if (err) return err; wq->db = &wq->db[MLX5_SND_DBR]; err = mlx5e_alloc_icosq_db(sq, cpu_to_node(c->cpu)); if (err) goto err_sq_wq_destroy; INIT_WORK(&sq->recover_work, recover_work_func); return 0; err_sq_wq_destroy: mlx5_wq_destroy(&sq->wq_ctrl); return err; } static void mlx5e_free_icosq(struct mlx5e_icosq *sq) { mlx5e_free_icosq_db(sq); mlx5_wq_destroy(&sq->wq_ctrl); } void mlx5e_free_txqsq_db(struct mlx5e_txqsq *sq) { kvfree(sq->db.wqe_info); kvfree(sq->db.skb_fifo.fifo); kvfree(sq->db.dma_fifo); } int mlx5e_alloc_txqsq_db(struct mlx5e_txqsq *sq, int numa) { int wq_sz = mlx5_wq_cyc_get_size(&sq->wq); int df_sz = wq_sz * MLX5_SEND_WQEBB_NUM_DS; sq->db.dma_fifo = kvzalloc_node(array_size(df_sz, sizeof(*sq->db.dma_fifo)), GFP_KERNEL, numa); sq->db.skb_fifo.fifo = kvzalloc_node(array_size(df_sz, sizeof(*sq->db.skb_fifo.fifo)), GFP_KERNEL, numa); sq->db.wqe_info = kvzalloc_node(array_size(wq_sz, sizeof(*sq->db.wqe_info)), GFP_KERNEL, numa); if (!sq->db.dma_fifo || !sq->db.skb_fifo.fifo || !sq->db.wqe_info) { mlx5e_free_txqsq_db(sq); return -ENOMEM; } sq->dma_fifo_mask = df_sz - 1; sq->db.skb_fifo.pc = &sq->skb_fifo_pc; sq->db.skb_fifo.cc = &sq->skb_fifo_cc; sq->db.skb_fifo.mask = df_sz - 1; return 0; } static int mlx5e_alloc_txqsq(struct mlx5e_channel *c, int txq_ix, struct mlx5e_params *params, struct mlx5e_sq_param *param, struct mlx5e_txqsq *sq, int tc) { void *sqc_wq = MLX5_ADDR_OF(sqc, param->sqc, wq); struct mlx5_core_dev *mdev = c->mdev; struct mlx5_wq_cyc *wq = &sq->wq; int err; sq->pdev = c->pdev; sq->clock = &mdev->clock; sq->mkey_be = c->mkey_be; sq->netdev = c->netdev; sq->mdev = c->mdev; sq->channel = c; sq->priv = c->priv; sq->ch_ix = c->ix; sq->txq_ix = txq_ix; sq->uar_map = mdev->mlx5e_res.hw_objs.bfreg.map; sq->min_inline_mode = params->tx_min_inline_mode; sq->hw_mtu = MLX5E_SW2HW_MTU(params, params->sw_mtu); sq->max_sq_mpw_wqebbs = mlx5e_get_max_sq_aligned_wqebbs(mdev); INIT_WORK(&sq->recover_work, mlx5e_tx_err_cqe_work); if (!MLX5_CAP_ETH(mdev, wqe_vlan_insert)) set_bit(MLX5E_SQ_STATE_VLAN_NEED_L2_INLINE, &sq->state); if (mlx5_ipsec_device_caps(c->priv->mdev)) set_bit(MLX5E_SQ_STATE_IPSEC, &sq->state); if (param->is_mpw) set_bit(MLX5E_SQ_STATE_MPWQE, &sq->state); sq->stop_room = param->stop_room; sq->ptp_cyc2time = mlx5_sq_ts_translator(mdev); param->wq.db_numa_node = cpu_to_node(c->cpu); err = mlx5_wq_cyc_create(mdev, ¶m->wq, sqc_wq, wq, &sq->wq_ctrl); if (err) return err; wq->db = &wq->db[MLX5_SND_DBR]; err = mlx5e_alloc_txqsq_db(sq, cpu_to_node(c->cpu)); if (err) goto err_sq_wq_destroy; INIT_WORK(&sq->dim.work, mlx5e_tx_dim_work); sq->dim.mode = params->tx_cq_moderation.cq_period_mode; return 0; err_sq_wq_destroy: mlx5_wq_destroy(&sq->wq_ctrl); return err; } void mlx5e_free_txqsq(struct mlx5e_txqsq *sq) { mlx5e_free_txqsq_db(sq); mlx5_wq_destroy(&sq->wq_ctrl); } static int mlx5e_create_sq(struct mlx5_core_dev *mdev, struct mlx5e_sq_param *param, struct mlx5e_create_sq_param *csp, u32 *sqn) { u8 ts_format; void *in; void *sqc; void *wq; int inlen; int err; inlen = MLX5_ST_SZ_BYTES(create_sq_in) + sizeof(u64) * csp->wq_ctrl->buf.npages; in = kvzalloc(inlen, GFP_KERNEL); if (!in) return -ENOMEM; ts_format = mlx5_is_real_time_sq(mdev) ? MLX5_TIMESTAMP_FORMAT_REAL_TIME : MLX5_TIMESTAMP_FORMAT_FREE_RUNNING; sqc = MLX5_ADDR_OF(create_sq_in, in, ctx); wq = MLX5_ADDR_OF(sqc, sqc, wq); memcpy(sqc, param->sqc, sizeof(param->sqc)); MLX5_SET(sqc, sqc, tis_lst_sz, csp->tis_lst_sz); MLX5_SET(sqc, sqc, tis_num_0, csp->tisn); MLX5_SET(sqc, sqc, cqn, csp->cqn); MLX5_SET(sqc, sqc, ts_cqe_to_dest_cqn, csp->ts_cqe_to_dest_cqn); MLX5_SET(sqc, sqc, ts_format, ts_format); if (MLX5_CAP_ETH(mdev, wqe_inline_mode) == MLX5_CAP_INLINE_MODE_VPORT_CONTEXT) MLX5_SET(sqc, sqc, min_wqe_inline_mode, csp->min_inline_mode); MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST); MLX5_SET(sqc, sqc, flush_in_error_en, 1); MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC); MLX5_SET(wq, wq, uar_page, mdev->mlx5e_res.hw_objs.bfreg.index); MLX5_SET(wq, wq, log_wq_pg_sz, csp->wq_ctrl->buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT); MLX5_SET64(wq, wq, dbr_addr, csp->wq_ctrl->db.dma); mlx5_fill_page_frag_array(&csp->wq_ctrl->buf, (__be64 *)MLX5_ADDR_OF(wq, wq, pas)); err = mlx5_core_create_sq(mdev, in, inlen, sqn); kvfree(in); return err; } int mlx5e_modify_sq(struct mlx5_core_dev *mdev, u32 sqn, struct mlx5e_modify_sq_param *p) { u64 bitmask = 0; void *in; void *sqc; int inlen; int err; inlen = MLX5_ST_SZ_BYTES(modify_sq_in); in = kvzalloc(inlen, GFP_KERNEL); if (!in) return -ENOMEM; sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx); MLX5_SET(modify_sq_in, in, sq_state, p->curr_state); MLX5_SET(sqc, sqc, state, p->next_state); if (p->rl_update && p->next_state == MLX5_SQC_STATE_RDY) { bitmask |= 1; MLX5_SET(sqc, sqc, packet_pacing_rate_limit_index, p->rl_index); } if (p->qos_update && p->next_state == MLX5_SQC_STATE_RDY) { bitmask |= 1 << 2; MLX5_SET(sqc, sqc, qos_queue_group_id, p->qos_queue_group_id); } MLX5_SET64(modify_sq_in, in, modify_bitmask, bitmask); err = mlx5_core_modify_sq(mdev, sqn, in); kvfree(in); return err; } static void mlx5e_destroy_sq(struct mlx5_core_dev *mdev, u32 sqn) { mlx5_core_destroy_sq(mdev, sqn); } int mlx5e_create_sq_rdy(struct mlx5_core_dev *mdev, struct mlx5e_sq_param *param, struct mlx5e_create_sq_param *csp, u16 qos_queue_group_id, u32 *sqn) { struct mlx5e_modify_sq_param msp = {0}; int err; err = mlx5e_create_sq(mdev, param, csp, sqn); if (err) return err; msp.curr_state = MLX5_SQC_STATE_RST; msp.next_state = MLX5_SQC_STATE_RDY; if (qos_queue_group_id) { msp.qos_update = true; msp.qos_queue_group_id = qos_queue_group_id; } err = mlx5e_modify_sq(mdev, *sqn, &msp); if (err) mlx5e_destroy_sq(mdev, *sqn); return err; } static int mlx5e_set_sq_maxrate(struct net_device *dev, struct mlx5e_txqsq *sq, u32 rate); int mlx5e_open_txqsq(struct mlx5e_channel *c, u32 tisn, int txq_ix, struct mlx5e_params *params, struct mlx5e_sq_param *param, struct mlx5e_txqsq *sq, int tc, u16 qos_queue_group_id, struct mlx5e_sq_stats *sq_stats) { struct mlx5e_create_sq_param csp = {}; u32 tx_rate; int err; err = mlx5e_alloc_txqsq(c, txq_ix, params, param, sq, tc); if (err) return err; sq->stats = sq_stats; csp.tisn = tisn; csp.tis_lst_sz = 1; csp.cqn = sq->cq.mcq.cqn; csp.wq_ctrl = &sq->wq_ctrl; csp.min_inline_mode = sq->min_inline_mode; err = mlx5e_create_sq_rdy(c->mdev, param, &csp, qos_queue_group_id, &sq->sqn); if (err) goto err_free_txqsq; tx_rate = c->priv->tx_rates[sq->txq_ix]; if (tx_rate) mlx5e_set_sq_maxrate(c->netdev, sq, tx_rate); if (params->tx_dim_enabled) sq->state |= BIT(MLX5E_SQ_STATE_DIM); return 0; err_free_txqsq: mlx5e_free_txqsq(sq); return err; } void mlx5e_activate_txqsq(struct mlx5e_txqsq *sq) { sq->txq = netdev_get_tx_queue(sq->netdev, sq->txq_ix); set_bit(MLX5E_SQ_STATE_ENABLED, &sq->state); netdev_tx_reset_queue(sq->txq); netif_tx_start_queue(sq->txq); } void mlx5e_tx_disable_queue(struct netdev_queue *txq) { __netif_tx_lock_bh(txq); netif_tx_stop_queue(txq); __netif_tx_unlock_bh(txq); } void mlx5e_deactivate_txqsq(struct mlx5e_txqsq *sq) { struct mlx5_wq_cyc *wq = &sq->wq; clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state); synchronize_net(); /* Sync with NAPI to prevent netif_tx_wake_queue. */ mlx5e_tx_disable_queue(sq->txq); /* last doorbell out, godspeed .. */ if (mlx5e_wqc_has_room_for(wq, sq->cc, sq->pc, 1)) { u16 pi = mlx5_wq_cyc_ctr2ix(wq, sq->pc); struct mlx5e_tx_wqe *nop; sq->db.wqe_info[pi] = (struct mlx5e_tx_wqe_info) { .num_wqebbs = 1, }; nop = mlx5e_post_nop(wq, sq->sqn, &sq->pc); mlx5e_notify_hw(wq, sq->pc, sq->uar_map, &nop->ctrl); } } void mlx5e_close_txqsq(struct mlx5e_txqsq *sq) { struct mlx5_core_dev *mdev = sq->mdev; struct mlx5_rate_limit rl = {0}; cancel_work_sync(&sq->dim.work); cancel_work_sync(&sq->recover_work); mlx5e_destroy_sq(mdev, sq->sqn); if (sq->rate_limit) { rl.rate = sq->rate_limit; mlx5_rl_remove_rate(mdev, &rl); } mlx5e_free_txqsq_descs(sq); mlx5e_free_txqsq(sq); } void mlx5e_tx_err_cqe_work(struct work_struct *recover_work) { struct mlx5e_txqsq *sq = container_of(recover_work, struct mlx5e_txqsq, recover_work); mlx5e_reporter_tx_err_cqe(sq); } static int mlx5e_open_icosq(struct mlx5e_channel *c, struct mlx5e_params *params, struct mlx5e_sq_param *param, struct mlx5e_icosq *sq, work_func_t recover_work_func) { struct mlx5e_create_sq_param csp = {}; int err; err = mlx5e_alloc_icosq(c, param, sq, recover_work_func); if (err) return err; csp.cqn = sq->cq.mcq.cqn; csp.wq_ctrl = &sq->wq_ctrl; csp.min_inline_mode = params->tx_min_inline_mode; err = mlx5e_create_sq_rdy(c->mdev, param, &csp, 0, &sq->sqn); if (err) goto err_free_icosq; if (param->is_tls) { sq->ktls_resync = mlx5e_ktls_rx_resync_create_resp_list(); if (IS_ERR(sq->ktls_resync)) { err = PTR_ERR(sq->ktls_resync); goto err_destroy_icosq; } } return 0; err_destroy_icosq: mlx5e_destroy_sq(c->mdev, sq->sqn); err_free_icosq: mlx5e_free_icosq(sq); return err; } void mlx5e_activate_icosq(struct mlx5e_icosq *icosq) { set_bit(MLX5E_SQ_STATE_ENABLED, &icosq->state); } void mlx5e_deactivate_icosq(struct mlx5e_icosq *icosq) { clear_bit(MLX5E_SQ_STATE_ENABLED, &icosq->state); synchronize_net(); /* Sync with NAPI. */ } static void mlx5e_close_icosq(struct mlx5e_icosq *sq) { struct mlx5e_channel *c = sq->channel; if (sq->ktls_resync) mlx5e_ktls_rx_resync_destroy_resp_list(sq->ktls_resync); mlx5e_destroy_sq(c->mdev, sq->sqn); mlx5e_free_icosq_descs(sq); mlx5e_free_icosq(sq); } int mlx5e_open_xdpsq(struct mlx5e_channel *c, struct mlx5e_params *params, struct mlx5e_sq_param *param, struct xsk_buff_pool *xsk_pool, struct mlx5e_xdpsq *sq, bool is_redirect) { struct mlx5e_create_sq_param csp = {}; int err; err = mlx5e_alloc_xdpsq(c, params, xsk_pool, param, sq, is_redirect); if (err) return err; csp.tis_lst_sz = 1; csp.tisn = c->priv->tisn[c->lag_port][0]; /* tc = 0 */ csp.cqn = sq->cq.mcq.cqn; csp.wq_ctrl = &sq->wq_ctrl; csp.min_inline_mode = sq->min_inline_mode; set_bit(MLX5E_SQ_STATE_ENABLED, &sq->state); if (param->is_xdp_mb) set_bit(MLX5E_SQ_STATE_XDP_MULTIBUF, &sq->state); err = mlx5e_create_sq_rdy(c->mdev, param, &csp, 0, &sq->sqn); if (err) goto err_free_xdpsq; mlx5e_set_xmit_fp(sq, param->is_mpw); if (!param->is_mpw && !test_bit(MLX5E_SQ_STATE_XDP_MULTIBUF, &sq->state)) { unsigned int ds_cnt = MLX5E_TX_WQE_EMPTY_DS_COUNT + 1; unsigned int inline_hdr_sz = 0; int i; if (sq->min_inline_mode != MLX5_INLINE_MODE_NONE) { inline_hdr_sz = MLX5E_XDP_MIN_INLINE; ds_cnt++; } /* Pre initialize fixed WQE fields */ for (i = 0; i < mlx5_wq_cyc_get_size(&sq->wq); i++) { struct mlx5e_tx_wqe *wqe = mlx5_wq_cyc_get_wqe(&sq->wq, i); struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl; struct mlx5_wqe_eth_seg *eseg = &wqe->eth; sq->db.wqe_info[i] = (struct mlx5e_xdp_wqe_info) { .num_wqebbs = 1, .num_pkts = 1, }; cseg->qpn_ds = cpu_to_be32((sq->sqn << 8) | ds_cnt); eseg->inline_hdr.sz = cpu_to_be16(inline_hdr_sz); } } return 0; err_free_xdpsq: clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state); mlx5e_free_xdpsq(sq); return err; } void mlx5e_close_xdpsq(struct mlx5e_xdpsq *sq) { struct mlx5e_channel *c = sq->channel; clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state); synchronize_net(); /* Sync with NAPI. */ mlx5e_destroy_sq(c->mdev, sq->sqn); mlx5e_free_xdpsq_descs(sq); mlx5e_free_xdpsq(sq); } static int mlx5e_alloc_cq_common(struct mlx5e_priv *priv, struct mlx5e_cq_param *param, struct mlx5e_cq *cq) { struct mlx5_core_dev *mdev = priv->mdev; struct mlx5_core_cq *mcq = &cq->mcq; int err; u32 i; err = mlx5_cqwq_create(mdev, ¶m->wq, param->cqc, &cq->wq, &cq->wq_ctrl); if (err) return err; mcq->cqe_sz = 64; mcq->set_ci_db = cq->wq_ctrl.db.db; mcq->arm_db = cq->wq_ctrl.db.db + 1; *mcq->set_ci_db = 0; *mcq->arm_db = 0; mcq->vector = param->eq_ix; mcq->comp = mlx5e_completion_event; mcq->event = mlx5e_cq_error_event; for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) { struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i); cqe->op_own = 0xf1; cqe->validity_iteration_count = 0xff; } cq->mdev = mdev; cq->netdev = priv->netdev; cq->priv = priv; return 0; } static int mlx5e_alloc_cq(struct mlx5e_priv *priv, struct mlx5e_cq_param *param, struct mlx5e_create_cq_param *ccp, struct mlx5e_cq *cq) { int err; param->wq.buf_numa_node = ccp->node; param->wq.db_numa_node = ccp->node; param->eq_ix = ccp->ix; err = mlx5e_alloc_cq_common(priv, param, cq); cq->napi = ccp->napi; cq->ch_stats = ccp->ch_stats; return err; } static void mlx5e_free_cq(struct mlx5e_cq *cq) { mlx5_wq_destroy(&cq->wq_ctrl); } static int mlx5e_create_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param) { u32 out[MLX5_ST_SZ_DW(create_cq_out)]; struct mlx5_core_dev *mdev = cq->mdev; struct mlx5_core_cq *mcq = &cq->mcq; void *in; void *cqc; int inlen; int eqn; int err; err = mlx5_comp_eqn_get(mdev, param->eq_ix, &eqn); if (err) return err; inlen = MLX5_ST_SZ_BYTES(create_cq_in) + sizeof(u64) * cq->wq_ctrl.buf.npages; in = kvzalloc(inlen, GFP_KERNEL); if (!in) return -ENOMEM; cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context); memcpy(cqc, param->cqc, sizeof(param->cqc)); mlx5_fill_page_frag_array(&cq->wq_ctrl.buf, (__be64 *)MLX5_ADDR_OF(create_cq_in, in, pas)); MLX5_SET(cqc, cqc, cq_period_mode, param->cq_period_mode); MLX5_SET(cqc, cqc, c_eqn_or_apu_element, eqn); MLX5_SET(cqc, cqc, uar_page, mdev->priv.uar->index); MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT); MLX5_SET64(cqc, cqc, dbr_addr, cq->wq_ctrl.db.dma); err = mlx5_core_create_cq(mdev, mcq, in, inlen, out, sizeof(out)); kvfree(in); if (err) return err; mlx5e_cq_arm(cq); return 0; } static void mlx5e_destroy_cq(struct mlx5e_cq *cq) { mlx5_core_destroy_cq(cq->mdev, &cq->mcq); } int mlx5e_open_cq(struct mlx5e_priv *priv, struct dim_cq_moder moder, struct mlx5e_cq_param *param, struct mlx5e_create_cq_param *ccp, struct mlx5e_cq *cq) { struct mlx5_core_dev *mdev = priv->mdev; int err; err = mlx5e_alloc_cq(priv, param, ccp, cq); if (err) return err; err = mlx5e_create_cq(cq, param); if (err) goto err_free_cq; if (MLX5_CAP_GEN(mdev, cq_moderation)) mlx5_core_modify_cq_moderation(mdev, &cq->mcq, moder.usec, moder.pkts); return 0; err_free_cq: mlx5e_free_cq(cq); return err; } void mlx5e_close_cq(struct mlx5e_cq *cq) { mlx5e_destroy_cq(cq); mlx5e_free_cq(cq); } static int mlx5e_open_tx_cqs(struct mlx5e_channel *c, struct mlx5e_params *params, struct mlx5e_create_cq_param *ccp, struct mlx5e_channel_param *cparam) { int err; int tc; for (tc = 0; tc < c->num_tc; tc++) { err = mlx5e_open_cq(c->priv, params->tx_cq_moderation, &cparam->txq_sq.cqp, ccp, &c->sq[tc].cq); if (err) goto err_close_tx_cqs; } return 0; err_close_tx_cqs: for (tc--; tc >= 0; tc--) mlx5e_close_cq(&c->sq[tc].cq); return err; } static void mlx5e_close_tx_cqs(struct mlx5e_channel *c) { int tc; for (tc = 0; tc < c->num_tc; tc++) mlx5e_close_cq(&c->sq[tc].cq); } static int mlx5e_mqprio_txq_to_tc(struct netdev_tc_txq *tc_to_txq, unsigned int txq) { int tc; for (tc = 0; tc < TC_MAX_QUEUE; tc++) if (txq - tc_to_txq[tc].offset < tc_to_txq[tc].count) return tc; WARN(1, "Unexpected TCs configuration. No match found for txq %u", txq); return -ENOENT; } static int mlx5e_txq_get_qos_node_hw_id(struct mlx5e_params *params, int txq_ix, u32 *hw_id) { int tc; if (params->mqprio.mode != TC_MQPRIO_MODE_CHANNEL) { *hw_id = 0; return 0; } tc = mlx5e_mqprio_txq_to_tc(params->mqprio.tc_to_txq, txq_ix); if (tc < 0) return tc; if (tc >= params->mqprio.num_tc) { WARN(1, "Unexpected TCs configuration. tc %d is out of range of %u", tc, params->mqprio.num_tc); return -EINVAL; } *hw_id = params->mqprio.channel.hw_id[tc]; return 0; } static int mlx5e_open_sqs(struct mlx5e_channel *c, struct mlx5e_params *params, struct mlx5e_channel_param *cparam) { int err, tc; for (tc = 0; tc < mlx5e_get_dcb_num_tc(params); tc++) { int txq_ix = c->ix + tc * params->num_channels; u32 qos_queue_group_id; err = mlx5e_txq_get_qos_node_hw_id(params, txq_ix, &qos_queue_group_id); if (err) goto err_close_sqs; err = mlx5e_open_txqsq(c, c->priv->tisn[c->lag_port][tc], txq_ix, params, &cparam->txq_sq, &c->sq[tc], tc, qos_queue_group_id, &c->priv->channel_stats[c->ix]->sq[tc]); if (err) goto err_close_sqs; } return 0; err_close_sqs: for (tc--; tc >= 0; tc--) mlx5e_close_txqsq(&c->sq[tc]); return err; } static void mlx5e_close_sqs(struct mlx5e_channel *c) { int tc; for (tc = 0; tc < c->num_tc; tc++) mlx5e_close_txqsq(&c->sq[tc]); } static int mlx5e_set_sq_maxrate(struct net_device *dev, struct mlx5e_txqsq *sq, u32 rate) { struct mlx5e_priv *priv = netdev_priv(dev); struct mlx5_core_dev *mdev = priv->mdev; struct mlx5e_modify_sq_param msp = {0}; struct mlx5_rate_limit rl = {0}; u16 rl_index = 0; int err; if (rate == sq->rate_limit) /* nothing to do */ return 0; if (sq->rate_limit) { rl.rate = sq->rate_limit; /* remove current rl index to free space to next ones */ mlx5_rl_remove_rate(mdev, &rl); } sq->rate_limit = 0; if (rate) { rl.rate = rate; err = mlx5_rl_add_rate(mdev, &rl_index, &rl); if (err) { netdev_err(dev, "Failed configuring rate %u: %d\n", rate, err); return err; } } msp.curr_state = MLX5_SQC_STATE_RDY; msp.next_state = MLX5_SQC_STATE_RDY; msp.rl_index = rl_index; msp.rl_update = true; err = mlx5e_modify_sq(mdev, sq->sqn, &msp); if (err) { netdev_err(dev, "Failed configuring rate %u: %d\n", rate, err); /* remove the rate from the table */ if (rate) mlx5_rl_remove_rate(mdev, &rl); return err; } sq->rate_limit = rate; return 0; } static int mlx5e_set_tx_maxrate(struct net_device *dev, int index, u32 rate) { struct mlx5e_priv *priv = netdev_priv(dev); struct mlx5_core_dev *mdev = priv->mdev; struct mlx5e_txqsq *sq = priv->txq2sq[index]; int err = 0; if (!mlx5_rl_is_supported(mdev)) { netdev_err(dev, "Rate limiting is not supported on this device\n"); return -EINVAL; } /* rate is given in Mb/sec, HW config is in Kb/sec */ rate = rate << 10; /* Check whether rate in valid range, 0 is always valid */ if (rate && !mlx5_rl_is_in_range(mdev, rate)) { netdev_err(dev, "TX rate %u, is not in range\n", rate); return -ERANGE; } mutex_lock(&priv->state_lock); if (test_bit(MLX5E_STATE_OPENED, &priv->state)) err = mlx5e_set_sq_maxrate(dev, sq, rate); if (!err) priv->tx_rates[index] = rate; mutex_unlock(&priv->state_lock); return err; } static int mlx5e_open_rxq_rq(struct mlx5e_channel *c, struct mlx5e_params *params, struct mlx5e_rq_param *rq_params) { int err; err = mlx5e_init_rxq_rq(c, params, rq_params->xdp_frag_size, &c->rq); if (err) return err; return mlx5e_open_rq(params, rq_params, NULL, cpu_to_node(c->cpu), &c->rq); } static int mlx5e_open_queues(struct mlx5e_channel *c, struct mlx5e_params *params, struct mlx5e_channel_param *cparam) { struct dim_cq_moder icocq_moder = {0, 0}; struct mlx5e_create_cq_param ccp; int err; mlx5e_build_create_cq_param(&ccp, c); err = mlx5e_open_cq(c->priv, icocq_moder, &cparam->async_icosq.cqp, &ccp, &c->async_icosq.cq); if (err) return err; err = mlx5e_open_cq(c->priv, icocq_moder, &cparam->icosq.cqp, &ccp, &c->icosq.cq); if (err) goto err_close_async_icosq_cq; err = mlx5e_open_tx_cqs(c, params, &ccp, cparam); if (err) goto err_close_icosq_cq; err = mlx5e_open_cq(c->priv, params->tx_cq_moderation, &cparam->xdp_sq.cqp, &ccp, &c->xdpsq.cq); if (err) goto err_close_tx_cqs; err = mlx5e_open_cq(c->priv, params->rx_cq_moderation, &cparam->rq.cqp, &ccp, &c->rq.cq); if (err) goto err_close_xdp_tx_cqs; err = c->xdp ? mlx5e_open_cq(c->priv, params->tx_cq_moderation, &cparam->xdp_sq.cqp, &ccp, &c->rq_xdpsq.cq) : 0; if (err) goto err_close_rx_cq; spin_lock_init(&c->async_icosq_lock); err = mlx5e_open_icosq(c, params, &cparam->async_icosq, &c->async_icosq, mlx5e_async_icosq_err_cqe_work); if (err) goto err_close_xdpsq_cq; mutex_init(&c->icosq_recovery_lock); err = mlx5e_open_icosq(c, params, &cparam->icosq, &c->icosq, mlx5e_icosq_err_cqe_work); if (err) goto err_close_async_icosq; err = mlx5e_open_sqs(c, params, cparam); if (err) goto err_close_icosq; err = mlx5e_open_rxq_rq(c, params, &cparam->rq); if (err) goto err_close_sqs; if (c->xdp) { err = mlx5e_open_xdpsq(c, params, &cparam->xdp_sq, NULL, &c->rq_xdpsq, false); if (err) goto err_close_rq; } err = mlx5e_open_xdpsq(c, params, &cparam->xdp_sq, NULL, &c->xdpsq, true); if (err) goto err_close_xdp_sq; return 0; err_close_xdp_sq: if (c->xdp) mlx5e_close_xdpsq(&c->rq_xdpsq); err_close_rq: mlx5e_close_rq(&c->rq); err_close_sqs: mlx5e_close_sqs(c); err_close_icosq: mlx5e_close_icosq(&c->icosq); err_close_async_icosq: mlx5e_close_icosq(&c->async_icosq); err_close_xdpsq_cq: if (c->xdp) mlx5e_close_cq(&c->rq_xdpsq.cq); err_close_rx_cq: mlx5e_close_cq(&c->rq.cq); err_close_xdp_tx_cqs: mlx5e_close_cq(&c->xdpsq.cq); err_close_tx_cqs: mlx5e_close_tx_cqs(c); err_close_icosq_cq: mlx5e_close_cq(&c->icosq.cq); err_close_async_icosq_cq: mlx5e_close_cq(&c->async_icosq.cq); return err; } static void mlx5e_close_queues(struct mlx5e_channel *c) { mlx5e_close_xdpsq(&c->xdpsq); if (c->xdp) mlx5e_close_xdpsq(&c->rq_xdpsq); /* The same ICOSQ is used for UMRs for both RQ and XSKRQ. */ cancel_work_sync(&c->icosq.recover_work); mlx5e_close_rq(&c->rq); mlx5e_close_sqs(c); mlx5e_close_icosq(&c->icosq); mutex_destroy(&c->icosq_recovery_lock); mlx5e_close_icosq(&c->async_icosq); if (c->xdp) mlx5e_close_cq(&c->rq_xdpsq.cq); mlx5e_close_cq(&c->rq.cq); mlx5e_close_cq(&c->xdpsq.cq); mlx5e_close_tx_cqs(c); mlx5e_close_cq(&c->icosq.cq); mlx5e_close_cq(&c->async_icosq.cq); } static u8 mlx5e_enumerate_lag_port(struct mlx5_core_dev *mdev, int ix) { u16 port_aff_bias = mlx5_core_is_pf(mdev) ? 0 : MLX5_CAP_GEN(mdev, vhca_id); return (ix + port_aff_bias) % mlx5e_get_num_lag_ports(mdev); } static int mlx5e_channel_stats_alloc(struct mlx5e_priv *priv, int ix, int cpu) { if (ix > priv->stats_nch) { netdev_warn(priv->netdev, "Unexpected channel stats index %d > %d\n", ix, priv->stats_nch); return -EINVAL; } if (priv->channel_stats[ix]) return 0; /* Asymmetric dynamic memory allocation. * Freed in mlx5e_priv_arrays_free, not on channel closure. */ netdev_dbg(priv->netdev, "Creating channel stats %d\n", ix); priv->channel_stats[ix] = kvzalloc_node(sizeof(**priv->channel_stats), GFP_KERNEL, cpu_to_node(cpu)); if (!priv->channel_stats[ix]) return -ENOMEM; priv->stats_nch++; return 0; } void mlx5e_trigger_napi_icosq(struct mlx5e_channel *c) { spin_lock_bh(&c->async_icosq_lock); mlx5e_trigger_irq(&c->async_icosq); spin_unlock_bh(&c->async_icosq_lock); } void mlx5e_trigger_napi_sched(struct napi_struct *napi) { local_bh_disable(); napi_schedule(napi); local_bh_enable(); } static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix, struct mlx5e_params *params, struct mlx5e_channel_param *cparam, struct xsk_buff_pool *xsk_pool, struct mlx5e_channel **cp) { int cpu = mlx5_comp_vector_get_cpu(priv->mdev, ix); struct net_device *netdev = priv->netdev; struct mlx5e_xsk_param xsk; struct mlx5e_channel *c; unsigned int irq; int err; err = mlx5_comp_irqn_get(priv->mdev, ix, &irq); if (err) return err; err = mlx5e_channel_stats_alloc(priv, ix, cpu); if (err) return err; c = kvzalloc_node(sizeof(*c), GFP_KERNEL, cpu_to_node(cpu)); if (!c) return -ENOMEM; c->priv = priv; c->mdev = priv->mdev; c->tstamp = &priv->tstamp; c->ix = ix; c->cpu = cpu; c->pdev = mlx5_core_dma_dev(priv->mdev); c->netdev = priv->netdev; c->mkey_be = cpu_to_be32(priv->mdev->mlx5e_res.hw_objs.mkey); c->num_tc = mlx5e_get_dcb_num_tc(params); c->xdp = !!params->xdp_prog; c->stats = &priv->channel_stats[ix]->ch; c->aff_mask = irq_get_effective_affinity_mask(irq); c->lag_port = mlx5e_enumerate_lag_port(priv->mdev, ix); netif_napi_add(netdev, &c->napi, mlx5e_napi_poll); err = mlx5e_open_queues(c, params, cparam); if (unlikely(err)) goto err_napi_del; if (xsk_pool) { mlx5e_build_xsk_param(xsk_pool, &xsk); err = mlx5e_open_xsk(priv, params, &xsk, xsk_pool, c); if (unlikely(err)) goto err_close_queues; } *cp = c; return 0; err_close_queues: mlx5e_close_queues(c); err_napi_del: netif_napi_del(&c->napi); kvfree(c); return err; } static void mlx5e_activate_channel(struct mlx5e_channel *c) { int tc; napi_enable(&c->napi); for (tc = 0; tc < c->num_tc; tc++) mlx5e_activate_txqsq(&c->sq[tc]); mlx5e_activate_icosq(&c->icosq); mlx5e_activate_icosq(&c->async_icosq); if (test_bit(MLX5E_CHANNEL_STATE_XSK, c->state)) mlx5e_activate_xsk(c); else mlx5e_activate_rq(&c->rq); } static void mlx5e_deactivate_channel(struct mlx5e_channel *c) { int tc; if (test_bit(MLX5E_CHANNEL_STATE_XSK, c->state)) mlx5e_deactivate_xsk(c); else mlx5e_deactivate_rq(&c->rq); mlx5e_deactivate_icosq(&c->async_icosq); mlx5e_deactivate_icosq(&c->icosq); for (tc = 0; tc < c->num_tc; tc++) mlx5e_deactivate_txqsq(&c->sq[tc]); mlx5e_qos_deactivate_queues(c); napi_disable(&c->napi); } static void mlx5e_close_channel(struct mlx5e_channel *c) { if (test_bit(MLX5E_CHANNEL_STATE_XSK, c->state)) mlx5e_close_xsk(c); mlx5e_close_queues(c); mlx5e_qos_close_queues(c); netif_napi_del(&c->napi); kvfree(c); } int mlx5e_open_channels(struct mlx5e_priv *priv, struct mlx5e_channels *chs) { struct mlx5e_channel_param *cparam; int err = -ENOMEM; int i; chs->num = chs->params.num_channels; chs->c = kcalloc(chs->num, sizeof(struct mlx5e_channel *), GFP_KERNEL); cparam = kvzalloc(sizeof(struct mlx5e_channel_param), GFP_KERNEL); if (!chs->c || !cparam) goto err_free; err = mlx5e_build_channel_param(priv->mdev, &chs->params, priv->q_counter, cparam); if (err) goto err_free; for (i = 0; i < chs->num; i++) { struct xsk_buff_pool *xsk_pool = NULL; if (chs->params.xdp_prog) xsk_pool = mlx5e_xsk_get_pool(&chs->params, chs->params.xsk, i); err = mlx5e_open_channel(priv, i, &chs->params, cparam, xsk_pool, &chs->c[i]); if (err) goto err_close_channels; } if (MLX5E_GET_PFLAG(&chs->params, MLX5E_PFLAG_TX_PORT_TS) || chs->params.ptp_rx) { err = mlx5e_ptp_open(priv, &chs->params, chs->c[0]->lag_port, &chs->ptp); if (err) goto err_close_channels; } if (priv->htb) { err = mlx5e_qos_open_queues(priv, chs); if (err) goto err_close_ptp; } mlx5e_health_channels_update(priv); kvfree(cparam); return 0; err_close_ptp: if (chs->ptp) mlx5e_ptp_close(chs->ptp); err_close_channels: for (i--; i >= 0; i--) mlx5e_close_channel(chs->c[i]); err_free: kfree(chs->c); kvfree(cparam); chs->num = 0; return err; } static void mlx5e_activate_channels(struct mlx5e_priv *priv, struct mlx5e_channels *chs) { int i; for (i = 0; i < chs->num; i++) mlx5e_activate_channel(chs->c[i]); if (priv->htb) mlx5e_qos_activate_queues(priv); for (i = 0; i < chs->num; i++) mlx5e_trigger_napi_icosq(chs->c[i]); if (chs->ptp) mlx5e_ptp_activate_channel(chs->ptp); } static int mlx5e_wait_channels_min_rx_wqes(struct mlx5e_channels *chs) { int err = 0; int i; for (i = 0; i < chs->num; i++) { int timeout = err ? 0 : MLX5E_RQ_WQES_TIMEOUT; struct mlx5e_channel *c = chs->c[i]; if (test_bit(MLX5E_CHANNEL_STATE_XSK, c->state)) continue; err |= mlx5e_wait_for_min_rx_wqes(&c->rq, timeout); /* Don't wait on the XSK RQ, because the newer xdpsock sample * doesn't provide any Fill Ring entries at the setup stage. */ } return err ? -ETIMEDOUT : 0; } static void mlx5e_deactivate_channels(struct mlx5e_channels *chs) { int i; if (chs->ptp) mlx5e_ptp_deactivate_channel(chs->ptp); for (i = 0; i < chs->num; i++) mlx5e_deactivate_channel(chs->c[i]); } void mlx5e_close_channels(struct mlx5e_channels *chs) { int i; ASSERT_RTNL(); if (chs->ptp) { mlx5e_ptp_close(chs->ptp); chs->ptp = NULL; } for (i = 0; i < chs->num; i++) mlx5e_close_channel(chs->c[i]); kfree(chs->c); chs->num = 0; } static int mlx5e_modify_tirs_packet_merge(struct mlx5e_priv *priv) { struct mlx5e_rx_res *res = priv->rx_res; return mlx5e_rx_res_packet_merge_set_param(res, &priv->channels.params.packet_merge); } static MLX5E_DEFINE_PREACTIVATE_WRAPPER_CTX(mlx5e_modify_tirs_packet_merge); static int mlx5e_set_mtu(struct mlx5_core_dev *mdev, struct mlx5e_params *params, u16 mtu) { u16 hw_mtu = MLX5E_SW2HW_MTU(params, mtu); int err; err = mlx5_set_port_mtu(mdev, hw_mtu, 1); if (err) return err; /* Update vport context MTU */ mlx5_modify_nic_vport_mtu(mdev, hw_mtu); return 0; } static void mlx5e_query_mtu(struct mlx5_core_dev *mdev, struct mlx5e_params *params, u16 *mtu) { u16 hw_mtu = 0; int err; err = mlx5_query_nic_vport_mtu(mdev, &hw_mtu); if (err || !hw_mtu) /* fallback to port oper mtu */ mlx5_query_port_oper_mtu(mdev, &hw_mtu, 1); *mtu = MLX5E_HW2SW_MTU(params, hw_mtu); } int mlx5e_set_dev_port_mtu(struct mlx5e_priv *priv) { struct mlx5e_params *params = &priv->channels.params; struct net_device *netdev = priv->netdev; struct mlx5_core_dev *mdev = priv->mdev; u16 mtu; int err; err = mlx5e_set_mtu(mdev, params, params->sw_mtu); if (err) return err; mlx5e_query_mtu(mdev, params, &mtu); if (mtu != params->sw_mtu) netdev_warn(netdev, "%s: VPort MTU %d is different than netdev mtu %d\n", __func__, mtu, params->sw_mtu); params->sw_mtu = mtu; return 0; } MLX5E_DEFINE_PREACTIVATE_WRAPPER_CTX(mlx5e_set_dev_port_mtu); void mlx5e_set_netdev_mtu_boundaries(struct mlx5e_priv *priv) { struct mlx5e_params *params = &priv->channels.params; struct net_device *netdev = priv->netdev; struct mlx5_core_dev *mdev = priv->mdev; u16 max_mtu; /* MTU range: 68 - hw-specific max */ netdev->min_mtu = ETH_MIN_MTU; mlx5_query_port_max_mtu(mdev, &max_mtu, 1); netdev->max_mtu = min_t(unsigned int, MLX5E_HW2SW_MTU(params, max_mtu), ETH_MAX_MTU); } static int mlx5e_netdev_set_tcs(struct net_device *netdev, u16 nch, u8 ntc, struct netdev_tc_txq *tc_to_txq) { int tc, err; netdev_reset_tc(netdev); if (ntc == 1) return 0; err = netdev_set_num_tc(netdev, ntc); if (err) { netdev_WARN(netdev, "netdev_set_num_tc failed (%d), ntc = %d\n", err, ntc); return err; } for (tc = 0; tc < ntc; tc++) { u16 count, offset; count = tc_to_txq[tc].count; offset = tc_to_txq[tc].offset; netdev_set_tc_queue(netdev, tc, count, offset); } return 0; } int mlx5e_update_tx_netdev_queues(struct mlx5e_priv *priv) { int nch, ntc, num_txqs, err; int qos_queues = 0; if (priv->htb) qos_queues = mlx5e_htb_cur_leaf_nodes(priv->htb); nch = priv->channels.params.num_channels; ntc = mlx5e_get_dcb_num_tc(&priv->channels.params); num_txqs = nch * ntc + qos_queues; if (MLX5E_GET_PFLAG(&priv->channels.params, MLX5E_PFLAG_TX_PORT_TS)) num_txqs += ntc; netdev_dbg(priv->netdev, "Setting num_txqs %d\n", num_txqs); err = netif_set_real_num_tx_queues(priv->netdev, num_txqs); if (err) netdev_warn(priv->netdev, "netif_set_real_num_tx_queues failed, %d\n", err); return err; } static int mlx5e_update_netdev_queues(struct mlx5e_priv *priv) { struct netdev_tc_txq old_tc_to_txq[TC_MAX_QUEUE], *tc_to_txq; struct net_device *netdev = priv->netdev; int old_num_txqs, old_ntc; int nch, ntc; int err; int i; old_num_txqs = netdev->real_num_tx_queues; old_ntc = netdev->num_tc ? : 1; for (i = 0; i < ARRAY_SIZE(old_tc_to_txq); i++) old_tc_to_txq[i] = netdev->tc_to_txq[i]; nch = priv->channels.params.num_channels; ntc = priv->channels.params.mqprio.num_tc; tc_to_txq = priv->channels.params.mqprio.tc_to_txq; err = mlx5e_netdev_set_tcs(netdev, nch, ntc, tc_to_txq); if (err) goto err_out; err = mlx5e_update_tx_netdev_queues(priv); if (err) goto err_tcs; err = netif_set_real_num_rx_queues(netdev, nch); if (err) { netdev_warn(netdev, "netif_set_real_num_rx_queues failed, %d\n", err); goto err_txqs; } return 0; err_txqs: /* netif_set_real_num_rx_queues could fail only when nch increased. Only * one of nch and ntc is changed in this function. That means, the call * to netif_set_real_num_tx_queues below should not fail, because it * decreases the number of TX queues. */ WARN_ON_ONCE(netif_set_real_num_tx_queues(netdev, old_num_txqs)); err_tcs: WARN_ON_ONCE(mlx5e_netdev_set_tcs(netdev, old_num_txqs / old_ntc, old_ntc, old_tc_to_txq)); err_out: return err; } static MLX5E_DEFINE_PREACTIVATE_WRAPPER_CTX(mlx5e_update_netdev_queues); static void mlx5e_set_default_xps_cpumasks(struct mlx5e_priv *priv, struct mlx5e_params *params) { struct mlx5_core_dev *mdev = priv->mdev; int num_comp_vectors, ix, irq; num_comp_vectors = mlx5_comp_vectors_max(mdev); for (ix = 0; ix < params->num_channels; ix++) { cpumask_clear(priv->scratchpad.cpumask); for (irq = ix; irq < num_comp_vectors; irq += params->num_channels) { int cpu = mlx5_comp_vector_get_cpu(mdev, irq); cpumask_set_cpu(cpu, priv->scratchpad.cpumask); } netif_set_xps_queue(priv->netdev, priv->scratchpad.cpumask, ix); } } static int mlx5e_num_channels_changed(struct mlx5e_priv *priv) { u16 count = priv->channels.params.num_channels; int err; err = mlx5e_update_netdev_queues(priv); if (err) return err; mlx5e_set_default_xps_cpumasks(priv, &priv->channels.params); /* This function may be called on attach, before priv->rx_res is created. */ if (priv->rx_res) { mlx5e_rx_res_rss_update_num_channels(priv->rx_res, count); if (!netif_is_rxfh_configured(priv->netdev)) mlx5e_rx_res_rss_set_indir_uniform(priv->rx_res, count); } return 0; } MLX5E_DEFINE_PREACTIVATE_WRAPPER_CTX(mlx5e_num_channels_changed); static void mlx5e_build_txq_maps(struct mlx5e_priv *priv) { int i, ch, tc, num_tc; ch = priv->channels.num; num_tc = mlx5e_get_dcb_num_tc(&priv->channels.params); for (i = 0; i < ch; i++) { for (tc = 0; tc < num_tc; tc++) { struct mlx5e_channel *c = priv->channels.c[i]; struct mlx5e_txqsq *sq = &c->sq[tc]; priv->txq2sq[sq->txq_ix] = sq; } } if (!priv->channels.ptp) goto out; if (!test_bit(MLX5E_PTP_STATE_TX, priv->channels.ptp->state)) goto out; for (tc = 0; tc < num_tc; tc++) { struct mlx5e_ptp *c = priv->channels.ptp; struct mlx5e_txqsq *sq = &c->ptpsq[tc].txqsq; priv->txq2sq[sq->txq_ix] = sq; } out: /* Make the change to txq2sq visible before the queue is started. * As mlx5e_xmit runs under a spinlock, there is an implicit ACQUIRE, * which pairs with this barrier. */ smp_wmb(); } void mlx5e_activate_priv_channels(struct mlx5e_priv *priv) { mlx5e_build_txq_maps(priv); mlx5e_activate_channels(priv, &priv->channels); mlx5e_xdp_tx_enable(priv); /* dev_watchdog() wants all TX queues to be started when the carrier is * OK, including the ones in range real_num_tx_queues..num_tx_queues-1. * Make it happy to avoid TX timeout false alarms. */ netif_tx_start_all_queues(priv->netdev); if (mlx5e_is_vport_rep(priv)) mlx5e_rep_activate_channels(priv); set_bit(MLX5E_STATE_CHANNELS_ACTIVE, &priv->state); mlx5e_wait_channels_min_rx_wqes(&priv->channels); if (priv->rx_res) mlx5e_rx_res_channels_activate(priv->rx_res, &priv->channels); } static void mlx5e_cancel_tx_timeout_work(struct mlx5e_priv *priv) { WARN_ON_ONCE(test_bit(MLX5E_STATE_CHANNELS_ACTIVE, &priv->state)); if (current_work() != &priv->tx_timeout_work) cancel_work_sync(&priv->tx_timeout_work); } void mlx5e_deactivate_priv_channels(struct mlx5e_priv *priv) { if (priv->rx_res) mlx5e_rx_res_channels_deactivate(priv->rx_res); clear_bit(MLX5E_STATE_CHANNELS_ACTIVE, &priv->state); mlx5e_cancel_tx_timeout_work(priv); if (mlx5e_is_vport_rep(priv)) mlx5e_rep_deactivate_channels(priv); /* The results of ndo_select_queue are unreliable, while netdev config * is being changed (real_num_tx_queues, num_tc). Stop all queues to * prevent ndo_start_xmit from being called, so that it can assume that * the selected queue is always valid. */ netif_tx_disable(priv->netdev); mlx5e_xdp_tx_disable(priv); mlx5e_deactivate_channels(&priv->channels); } static int mlx5e_switch_priv_params(struct mlx5e_priv *priv, struct mlx5e_params *new_params, mlx5e_fp_preactivate preactivate, void *context) { struct mlx5e_params old_params; old_params = priv->channels.params; priv->channels.params = *new_params; if (preactivate) { int err; err = preactivate(priv, context); if (err) { priv->channels.params = old_params; return err; } } return 0; } static int mlx5e_switch_priv_channels(struct mlx5e_priv *priv, struct mlx5e_channels *new_chs, mlx5e_fp_preactivate preactivate, void *context) { struct net_device *netdev = priv->netdev; struct mlx5e_channels old_chs; int carrier_ok; int err = 0; carrier_ok = netif_carrier_ok(netdev); netif_carrier_off(netdev); mlx5e_deactivate_priv_channels(priv); old_chs = priv->channels; priv->channels = *new_chs; /* New channels are ready to roll, call the preactivate hook if needed * to modify HW settings or update kernel parameters. */ if (preactivate) { err = preactivate(priv, context); if (err) { priv->channels = old_chs; goto out; } } mlx5e_close_channels(&old_chs); priv->profile->update_rx(priv); mlx5e_selq_apply(&priv->selq); out: mlx5e_activate_priv_channels(priv); /* return carrier back if needed */ if (carrier_ok) netif_carrier_on(netdev); return err; } int mlx5e_safe_switch_params(struct mlx5e_priv *priv, struct mlx5e_params *params, mlx5e_fp_preactivate preactivate, void *context, bool reset) { struct mlx5e_channels *new_chs; int err; reset &= test_bit(MLX5E_STATE_OPENED, &priv->state); if (!reset) return mlx5e_switch_priv_params(priv, params, preactivate, context); new_chs = kzalloc(sizeof(*new_chs), GFP_KERNEL); if (!new_chs) return -ENOMEM; new_chs->params = *params; mlx5e_selq_prepare_params(&priv->selq, &new_chs->params); err = mlx5e_open_channels(priv, new_chs); if (err) goto err_cancel_selq; err = mlx5e_switch_priv_channels(priv, new_chs, preactivate, context); if (err) goto err_close; kfree(new_chs); return 0; err_close: mlx5e_close_channels(new_chs); err_cancel_selq: mlx5e_selq_cancel(&priv->selq); kfree(new_chs); return err; } int mlx5e_safe_reopen_channels(struct mlx5e_priv *priv) { return mlx5e_safe_switch_params(priv, &priv->channels.params, NULL, NULL, true); } void mlx5e_timestamp_init(struct mlx5e_priv *priv) { priv->tstamp.tx_type = HWTSTAMP_TX_OFF; priv->tstamp.rx_filter = HWTSTAMP_FILTER_NONE; } static void mlx5e_modify_admin_state(struct mlx5_core_dev *mdev, enum mlx5_port_status state) { struct mlx5_eswitch *esw = mdev->priv.eswitch; int vport_admin_state; mlx5_set_port_admin_status(mdev, state); if (mlx5_eswitch_mode(mdev) == MLX5_ESWITCH_OFFLOADS || !MLX5_CAP_GEN(mdev, uplink_follow)) return; if (state == MLX5_PORT_UP) vport_admin_state = MLX5_VPORT_ADMIN_STATE_AUTO; else vport_admin_state = MLX5_VPORT_ADMIN_STATE_DOWN; mlx5_eswitch_set_vport_state(esw, MLX5_VPORT_UPLINK, vport_admin_state); } int mlx5e_open_locked(struct net_device *netdev) { struct mlx5e_priv *priv = netdev_priv(netdev); int err; mlx5e_selq_prepare_params(&priv->selq, &priv->channels.params); set_bit(MLX5E_STATE_OPENED, &priv->state); err = mlx5e_open_channels(priv, &priv->channels); if (err) goto err_clear_state_opened_flag; err = priv->profile->update_rx(priv); if (err) goto err_close_channels; mlx5e_selq_apply(&priv->selq); mlx5e_activate_priv_channels(priv); mlx5e_apply_traps(priv, true); if (priv->profile->update_carrier) priv->profile->update_carrier(priv); mlx5e_queue_update_stats(priv); return 0; err_close_channels: mlx5e_close_channels(&priv->channels); err_clear_state_opened_flag: clear_bit(MLX5E_STATE_OPENED, &priv->state); mlx5e_selq_cancel(&priv->selq); return err; } int mlx5e_open(struct net_device *netdev) { struct mlx5e_priv *priv = netdev_priv(netdev); int err; mutex_lock(&priv->state_lock); err = mlx5e_open_locked(netdev); if (!err) mlx5e_modify_admin_state(priv->mdev, MLX5_PORT_UP); mutex_unlock(&priv->state_lock); return err; } int mlx5e_close_locked(struct net_device *netdev) { struct mlx5e_priv *priv = netdev_priv(netdev); /* May already be CLOSED in case a previous configuration operation * (e.g RX/TX queue size change) that involves close&open failed. */ if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) return 0; mlx5e_apply_traps(priv, false); clear_bit(MLX5E_STATE_OPENED, &priv->state); netif_carrier_off(priv->netdev); mlx5e_deactivate_priv_channels(priv); mlx5e_close_channels(&priv->channels); return 0; } int mlx5e_close(struct net_device *netdev) { struct mlx5e_priv *priv = netdev_priv(netdev); int err; if (!netif_device_present(netdev)) return -ENODEV; mutex_lock(&priv->state_lock); mlx5e_modify_admin_state(priv->mdev, MLX5_PORT_DOWN); err = mlx5e_close_locked(netdev); mutex_unlock(&priv->state_lock); return err; } static void mlx5e_free_drop_rq(struct mlx5e_rq *rq) { mlx5_wq_destroy(&rq->wq_ctrl); } static int mlx5e_alloc_drop_rq(struct mlx5_core_dev *mdev, struct mlx5e_rq *rq, struct mlx5e_rq_param *param) { void *rqc = param->rqc; void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq); int err; param->wq.db_numa_node = param->wq.buf_numa_node; err = mlx5_wq_cyc_create(mdev, ¶m->wq, rqc_wq, &rq->wqe.wq, &rq->wq_ctrl); if (err) return err; /* Mark as unused given "Drop-RQ" packets never reach XDP */ xdp_rxq_info_unused(&rq->xdp_rxq); rq->mdev = mdev; return 0; } static int mlx5e_alloc_drop_cq(struct mlx5e_priv *priv, struct mlx5e_cq *cq, struct mlx5e_cq_param *param) { struct mlx5_core_dev *mdev = priv->mdev; param->wq.buf_numa_node = dev_to_node(mlx5_core_dma_dev(mdev)); param->wq.db_numa_node = dev_to_node(mlx5_core_dma_dev(mdev)); return mlx5e_alloc_cq_common(priv, param, cq); } int mlx5e_open_drop_rq(struct mlx5e_priv *priv, struct mlx5e_rq *drop_rq) { struct mlx5_core_dev *mdev = priv->mdev; struct mlx5e_cq_param cq_param = {}; struct mlx5e_rq_param rq_param = {}; struct mlx5e_cq *cq = &drop_rq->cq; int err; mlx5e_build_drop_rq_param(mdev, priv->drop_rq_q_counter, &rq_param); err = mlx5e_alloc_drop_cq(priv, cq, &cq_param); if (err) return err; err = mlx5e_create_cq(cq, &cq_param); if (err) goto err_free_cq; err = mlx5e_alloc_drop_rq(mdev, drop_rq, &rq_param); if (err) goto err_destroy_cq; err = mlx5e_create_rq(drop_rq, &rq_param); if (err) goto err_free_rq; err = mlx5e_modify_rq_state(drop_rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY); if (err) mlx5_core_warn(priv->mdev, "modify_rq_state failed, rx_if_down_packets won't be counted %d\n", err); return 0; err_free_rq: mlx5e_free_drop_rq(drop_rq); err_destroy_cq: mlx5e_destroy_cq(cq); err_free_cq: mlx5e_free_cq(cq); return err; } void mlx5e_close_drop_rq(struct mlx5e_rq *drop_rq) { mlx5e_destroy_rq(drop_rq); mlx5e_free_drop_rq(drop_rq); mlx5e_destroy_cq(&drop_rq->cq); mlx5e_free_cq(&drop_rq->cq); } int mlx5e_create_tis(struct mlx5_core_dev *mdev, void *in, u32 *tisn) { void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx); MLX5_SET(tisc, tisc, transport_domain, mdev->mlx5e_res.hw_objs.td.tdn); if (MLX5_GET(tisc, tisc, tls_en)) MLX5_SET(tisc, tisc, pd, mdev->mlx5e_res.hw_objs.pdn); if (mlx5_lag_is_lacp_owner(mdev)) MLX5_SET(tisc, tisc, strict_lag_tx_port_affinity, 1); return mlx5_core_create_tis(mdev, in, tisn); } void mlx5e_destroy_tis(struct mlx5_core_dev *mdev, u32 tisn) { mlx5_core_destroy_tis(mdev, tisn); } void mlx5e_destroy_tises(struct mlx5e_priv *priv) { int tc, i; for (i = 0; i < mlx5e_get_num_lag_ports(priv->mdev); i++) for (tc = 0; tc < priv->profile->max_tc; tc++) mlx5e_destroy_tis(priv->mdev, priv->tisn[i][tc]); } static bool mlx5e_lag_should_assign_affinity(struct mlx5_core_dev *mdev) { return MLX5_CAP_GEN(mdev, lag_tx_port_affinity) && mlx5e_get_num_lag_ports(mdev) > 1; } int mlx5e_create_tises(struct mlx5e_priv *priv) { int tc, i; int err; for (i = 0; i < mlx5e_get_num_lag_ports(priv->mdev); i++) { for (tc = 0; tc < priv->profile->max_tc; tc++) { u32 in[MLX5_ST_SZ_DW(create_tis_in)] = {}; void *tisc; tisc = MLX5_ADDR_OF(create_tis_in, in, ctx); MLX5_SET(tisc, tisc, prio, tc << 1); if (mlx5e_lag_should_assign_affinity(priv->mdev)) MLX5_SET(tisc, tisc, lag_tx_port_affinity, i + 1); err = mlx5e_create_tis(priv->mdev, in, &priv->tisn[i][tc]); if (err) goto err_close_tises; } } return 0; err_close_tises: for (; i >= 0; i--) { for (tc--; tc >= 0; tc--) mlx5e_destroy_tis(priv->mdev, priv->tisn[i][tc]); tc = priv->profile->max_tc; } return err; } static void mlx5e_cleanup_nic_tx(struct mlx5e_priv *priv) { if (priv->mqprio_rl) { mlx5e_mqprio_rl_cleanup(priv->mqprio_rl); mlx5e_mqprio_rl_free(priv->mqprio_rl); priv->mqprio_rl = NULL; } mlx5e_accel_cleanup_tx(priv); mlx5e_destroy_tises(priv); } static int mlx5e_modify_channels_vsd(struct mlx5e_channels *chs, bool vsd) { int err; int i; for (i = 0; i < chs->num; i++) { err = mlx5e_modify_rq_vsd(&chs->c[i]->rq, vsd); if (err) return err; } if (chs->ptp && test_bit(MLX5E_PTP_STATE_RX, chs->ptp->state)) return mlx5e_modify_rq_vsd(&chs->ptp->rq, vsd); return 0; } static void mlx5e_mqprio_build_default_tc_to_txq(struct netdev_tc_txq *tc_to_txq, int ntc, int nch) { int tc; memset(tc_to_txq, 0, sizeof(*tc_to_txq) * TC_MAX_QUEUE); /* Map netdev TCs to offset 0. * We have our own UP to TXQ mapping for DCB mode of QoS */ for (tc = 0; tc < ntc; tc++) { tc_to_txq[tc] = (struct netdev_tc_txq) { .count = nch, .offset = 0, }; } } static void mlx5e_mqprio_build_tc_to_txq(struct netdev_tc_txq *tc_to_txq, struct tc_mqprio_qopt *qopt) { int tc; for (tc = 0; tc < TC_MAX_QUEUE; tc++) { tc_to_txq[tc] = (struct netdev_tc_txq) { .count = qopt->count[tc], .offset = qopt->offset[tc], }; } } static void mlx5e_params_mqprio_dcb_set(struct mlx5e_params *params, u8 num_tc) { params->mqprio.mode = TC_MQPRIO_MODE_DCB; params->mqprio.num_tc = num_tc; mlx5e_mqprio_build_default_tc_to_txq(params->mqprio.tc_to_txq, num_tc, params->num_channels); } static void mlx5e_mqprio_rl_update_params(struct mlx5e_params *params, struct mlx5e_mqprio_rl *rl) { int tc; for (tc = 0; tc < TC_MAX_QUEUE; tc++) { u32 hw_id = 0; if (rl) mlx5e_mqprio_rl_get_node_hw_id(rl, tc, &hw_id); params->mqprio.channel.hw_id[tc] = hw_id; } } static void mlx5e_params_mqprio_channel_set(struct mlx5e_params *params, struct tc_mqprio_qopt_offload *mqprio, struct mlx5e_mqprio_rl *rl) { int tc; params->mqprio.mode = TC_MQPRIO_MODE_CHANNEL; params->mqprio.num_tc = mqprio->qopt.num_tc; for (tc = 0; tc < TC_MAX_QUEUE; tc++) params->mqprio.channel.max_rate[tc] = mqprio->max_rate[tc]; mlx5e_mqprio_rl_update_params(params, rl); mlx5e_mqprio_build_tc_to_txq(params->mqprio.tc_to_txq, &mqprio->qopt); } static void mlx5e_params_mqprio_reset(struct mlx5e_params *params) { mlx5e_params_mqprio_dcb_set(params, 1); } static int mlx5e_setup_tc_mqprio_dcb(struct mlx5e_priv *priv, struct tc_mqprio_qopt *mqprio) { struct mlx5e_params new_params; u8 tc = mqprio->num_tc; int err; mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS; if (tc && tc != MLX5E_MAX_NUM_TC) return -EINVAL; new_params = priv->channels.params; mlx5e_params_mqprio_dcb_set(&new_params, tc ? tc : 1); err = mlx5e_safe_switch_params(priv, &new_params, mlx5e_num_channels_changed_ctx, NULL, true); if (!err && priv->mqprio_rl) { mlx5e_mqprio_rl_cleanup(priv->mqprio_rl); mlx5e_mqprio_rl_free(priv->mqprio_rl); priv->mqprio_rl = NULL; } priv->max_opened_tc = max_t(u8, priv->max_opened_tc, mlx5e_get_dcb_num_tc(&priv->channels.params)); return err; } static int mlx5e_mqprio_channel_validate(struct mlx5e_priv *priv, struct tc_mqprio_qopt_offload *mqprio) { struct net_device *netdev = priv->netdev; struct mlx5e_ptp *ptp_channel; int agg_count = 0; int i; ptp_channel = priv->channels.ptp; if (ptp_channel && test_bit(MLX5E_PTP_STATE_TX, ptp_channel->state)) { netdev_err(netdev, "Cannot activate MQPRIO mode channel since it conflicts with TX port TS\n"); return -EINVAL; } if (mqprio->qopt.offset[0] != 0 || mqprio->qopt.num_tc < 1 || mqprio->qopt.num_tc > MLX5E_MAX_NUM_MQPRIO_CH_TC) return -EINVAL; for (i = 0; i < mqprio->qopt.num_tc; i++) { if (!mqprio->qopt.count[i]) { netdev_err(netdev, "Zero size for queue-group (%d) is not supported\n", i); return -EINVAL; } if (mqprio->min_rate[i]) { netdev_err(netdev, "Min tx rate is not supported\n"); return -EINVAL; } if (mqprio->max_rate[i]) { int err; err = mlx5e_qos_bytes_rate_check(priv->mdev, mqprio->max_rate[i]); if (err) return err; } if (mqprio->qopt.offset[i] != agg_count) { netdev_err(netdev, "Discontinuous queues config is not supported\n"); return -EINVAL; } agg_count += mqprio->qopt.count[i]; } if (priv->channels.params.num_channels != agg_count) { netdev_err(netdev, "Num of queues (%d) does not match available (%d)\n", agg_count, priv->channels.params.num_channels); return -EINVAL; } return 0; } static bool mlx5e_mqprio_rate_limit(u8 num_tc, u64 max_rate[]) { int tc; for (tc = 0; tc < num_tc; tc++) if (max_rate[tc]) return true; return false; } static struct mlx5e_mqprio_rl *mlx5e_mqprio_rl_create(struct mlx5_core_dev *mdev, u8 num_tc, u64 max_rate[]) { struct mlx5e_mqprio_rl *rl; int err; if (!mlx5e_mqprio_rate_limit(num_tc, max_rate)) return NULL; rl = mlx5e_mqprio_rl_alloc(); if (!rl) return ERR_PTR(-ENOMEM); err = mlx5e_mqprio_rl_init(rl, mdev, num_tc, max_rate); if (err) { mlx5e_mqprio_rl_free(rl); return ERR_PTR(err); } return rl; } static int mlx5e_setup_tc_mqprio_channel(struct mlx5e_priv *priv, struct tc_mqprio_qopt_offload *mqprio) { mlx5e_fp_preactivate preactivate; struct mlx5e_params new_params; struct mlx5e_mqprio_rl *rl; bool nch_changed; int err; err = mlx5e_mqprio_channel_validate(priv, mqprio); if (err) return err; rl = mlx5e_mqprio_rl_create(priv->mdev, mqprio->qopt.num_tc, mqprio->max_rate); if (IS_ERR(rl)) return PTR_ERR(rl); new_params = priv->channels.params; mlx5e_params_mqprio_channel_set(&new_params, mqprio, rl); nch_changed = mlx5e_get_dcb_num_tc(&priv->channels.params) > 1; preactivate = nch_changed ? mlx5e_num_channels_changed_ctx : mlx5e_update_netdev_queues_ctx; err = mlx5e_safe_switch_params(priv, &new_params, preactivate, NULL, true); if (err) { if (rl) { mlx5e_mqprio_rl_cleanup(rl); mlx5e_mqprio_rl_free(rl); } return err; } if (priv->mqprio_rl) { mlx5e_mqprio_rl_cleanup(priv->mqprio_rl); mlx5e_mqprio_rl_free(priv->mqprio_rl); } priv->mqprio_rl = rl; return 0; } static int mlx5e_setup_tc_mqprio(struct mlx5e_priv *priv, struct tc_mqprio_qopt_offload *mqprio) { /* MQPRIO is another toplevel qdisc that can't be attached * simultaneously with the offloaded HTB. */ if (WARN_ON(mlx5e_selq_is_htb_enabled(&priv->selq))) return -EINVAL; switch (mqprio->mode) { case TC_MQPRIO_MODE_DCB: return mlx5e_setup_tc_mqprio_dcb(priv, &mqprio->qopt); case TC_MQPRIO_MODE_CHANNEL: return mlx5e_setup_tc_mqprio_channel(priv, mqprio); default: return -EOPNOTSUPP; } } static LIST_HEAD(mlx5e_block_cb_list); static int mlx5e_setup_tc(struct net_device *dev, enum tc_setup_type type, void *type_data) { struct mlx5e_priv *priv = netdev_priv(dev); bool tc_unbind = false; int err; if (type == TC_SETUP_BLOCK && ((struct flow_block_offload *)type_data)->command == FLOW_BLOCK_UNBIND) tc_unbind = true; if (!netif_device_present(dev) && !tc_unbind) return -ENODEV; switch (type) { case TC_SETUP_BLOCK: { struct flow_block_offload *f = type_data; f->unlocked_driver_cb = true; return flow_block_cb_setup_simple(type_data, &mlx5e_block_cb_list, mlx5e_setup_tc_block_cb, priv, priv, true); } case TC_SETUP_QDISC_MQPRIO: mutex_lock(&priv->state_lock); err = mlx5e_setup_tc_mqprio(priv, type_data); mutex_unlock(&priv->state_lock); return err; case TC_SETUP_QDISC_HTB: mutex_lock(&priv->state_lock); err = mlx5e_htb_setup_tc(priv, type_data); mutex_unlock(&priv->state_lock); return err; default: return -EOPNOTSUPP; } } void mlx5e_fold_sw_stats64(struct mlx5e_priv *priv, struct rtnl_link_stats64 *s) { int i; for (i = 0; i < priv->stats_nch; i++) { struct mlx5e_channel_stats *channel_stats = priv->channel_stats[i]; struct mlx5e_rq_stats *xskrq_stats = &channel_stats->xskrq; struct mlx5e_rq_stats *rq_stats = &channel_stats->rq; int j; s->rx_packets += rq_stats->packets + xskrq_stats->packets; s->rx_bytes += rq_stats->bytes + xskrq_stats->bytes; s->multicast += rq_stats->mcast_packets + xskrq_stats->mcast_packets; for (j = 0; j < priv->max_opened_tc; j++) { struct mlx5e_sq_stats *sq_stats = &channel_stats->sq[j]; s->tx_packets += sq_stats->packets; s->tx_bytes += sq_stats->bytes; s->tx_dropped += sq_stats->dropped; } } if (priv->tx_ptp_opened) { for (i = 0; i < priv->max_opened_tc; i++) { struct mlx5e_sq_stats *sq_stats = &priv->ptp_stats.sq[i]; s->tx_packets += sq_stats->packets; s->tx_bytes += sq_stats->bytes; s->tx_dropped += sq_stats->dropped; } } if (priv->rx_ptp_opened) { struct mlx5e_rq_stats *rq_stats = &priv->ptp_stats.rq; s->rx_packets += rq_stats->packets; s->rx_bytes += rq_stats->bytes; s->multicast += rq_stats->mcast_packets; } } void mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats) { struct mlx5e_priv *priv = netdev_priv(dev); struct mlx5e_pport_stats *pstats = &priv->stats.pport; if (!netif_device_present(dev)) return; /* In switchdev mode, monitor counters doesn't monitor * rx/tx stats of 802_3. The update stats mechanism * should keep the 802_3 layout counters updated */ if (!mlx5e_monitor_counter_supported(priv) || mlx5e_is_uplink_rep(priv)) { /* update HW stats in background for next time */ mlx5e_queue_update_stats(priv); } if (mlx5e_is_uplink_rep(priv)) { struct mlx5e_vport_stats *vstats = &priv->stats.vport; stats->rx_packets = PPORT_802_3_GET(pstats, a_frames_received_ok); stats->rx_bytes = PPORT_802_3_GET(pstats, a_octets_received_ok); stats->tx_packets = PPORT_802_3_GET(pstats, a_frames_transmitted_ok); stats->tx_bytes = PPORT_802_3_GET(pstats, a_octets_transmitted_ok); /* vport multicast also counts packets that are dropped due to steering * or rx out of buffer */ stats->multicast = VPORT_COUNTER_GET(vstats, received_eth_multicast.packets); } else { mlx5e_fold_sw_stats64(priv, stats); } stats->rx_dropped = priv->stats.qcnt.rx_out_of_buffer; stats->rx_length_errors = PPORT_802_3_GET(pstats, a_in_range_length_errors) + PPORT_802_3_GET(pstats, a_out_of_range_length_field) + PPORT_802_3_GET(pstats, a_frame_too_long_errors) + VNIC_ENV_GET(&priv->stats.vnic, eth_wqe_too_small); stats->rx_crc_errors = PPORT_802_3_GET(pstats, a_frame_check_sequence_errors); stats->rx_frame_errors = PPORT_802_3_GET(pstats, a_alignment_errors); stats->tx_aborted_errors = PPORT_2863_GET(pstats, if_out_discards); stats->rx_errors = stats->rx_length_errors + stats->rx_crc_errors + stats->rx_frame_errors; stats->tx_errors = stats->tx_aborted_errors + stats->tx_carrier_errors; } static void mlx5e_nic_set_rx_mode(struct mlx5e_priv *priv) { if (mlx5e_is_uplink_rep(priv)) return; /* no rx mode for uplink rep */ queue_work(priv->wq, &priv->set_rx_mode_work); } static void mlx5e_set_rx_mode(struct net_device *dev) { struct mlx5e_priv *priv = netdev_priv(dev); mlx5e_nic_set_rx_mode(priv); } static int mlx5e_set_mac(struct net_device *netdev, void *addr) { struct mlx5e_priv *priv = netdev_priv(netdev); struct sockaddr *saddr = addr; if (!is_valid_ether_addr(saddr->sa_data)) return -EADDRNOTAVAIL; netif_addr_lock_bh(netdev); eth_hw_addr_set(netdev, saddr->sa_data); netif_addr_unlock_bh(netdev); mlx5e_nic_set_rx_mode(priv); return 0; } #define MLX5E_SET_FEATURE(features, feature, enable) \ do { \ if (enable) \ *features |= feature; \ else \ *features &= ~feature; \ } while (0) typedef int (*mlx5e_feature_handler)(struct net_device *netdev, bool enable); static int set_feature_lro(struct net_device *netdev, bool enable) { struct mlx5e_priv *priv = netdev_priv(netdev); struct mlx5_core_dev *mdev = priv->mdev; struct mlx5e_params *cur_params; struct mlx5e_params new_params; bool reset = true; int err = 0; mutex_lock(&priv->state_lock); cur_params = &priv->channels.params; new_params = *cur_params; if (enable) new_params.packet_merge.type = MLX5E_PACKET_MERGE_LRO; else if (new_params.packet_merge.type == MLX5E_PACKET_MERGE_LRO) new_params.packet_merge.type = MLX5E_PACKET_MERGE_NONE; else goto out; if (!(cur_params->packet_merge.type == MLX5E_PACKET_MERGE_SHAMPO && new_params.packet_merge.type == MLX5E_PACKET_MERGE_LRO)) { if (cur_params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ) { if (mlx5e_rx_mpwqe_is_linear_skb(mdev, cur_params, NULL) == mlx5e_rx_mpwqe_is_linear_skb(mdev, &new_params, NULL)) reset = false; } } err = mlx5e_safe_switch_params(priv, &new_params, mlx5e_modify_tirs_packet_merge_ctx, NULL, reset); out: mutex_unlock(&priv->state_lock); return err; } static int set_feature_hw_gro(struct net_device *netdev, bool enable) { struct mlx5e_priv *priv = netdev_priv(netdev); struct mlx5e_params new_params; bool reset = true; int err = 0; mutex_lock(&priv->state_lock); new_params = priv->channels.params; if (enable) { new_params.packet_merge.type = MLX5E_PACKET_MERGE_SHAMPO; new_params.packet_merge.shampo.match_criteria_type = MLX5_RQC_SHAMPO_MATCH_CRITERIA_TYPE_EXTENDED; new_params.packet_merge.shampo.alignment_granularity = MLX5_RQC_SHAMPO_NO_MATCH_ALIGNMENT_GRANULARITY_STRIDE; } else if (new_params.packet_merge.type == MLX5E_PACKET_MERGE_SHAMPO) { new_params.packet_merge.type = MLX5E_PACKET_MERGE_NONE; } else { goto out; } err = mlx5e_safe_switch_params(priv, &new_params, NULL, NULL, reset); out: mutex_unlock(&priv->state_lock); return err; } static int set_feature_cvlan_filter(struct net_device *netdev, bool enable) { struct mlx5e_priv *priv = netdev_priv(netdev); if (enable) mlx5e_enable_cvlan_filter(priv->fs, !!(priv->netdev->flags & IFF_PROMISC)); else mlx5e_disable_cvlan_filter(priv->fs, !!(priv->netdev->flags & IFF_PROMISC)); return 0; } static int set_feature_hw_tc(struct net_device *netdev, bool enable) { struct mlx5e_priv *priv = netdev_priv(netdev); int err = 0; #if IS_ENABLED(CONFIG_MLX5_CLS_ACT) int tc_flag = mlx5e_is_uplink_rep(priv) ? MLX5_TC_FLAG(ESW_OFFLOAD) : MLX5_TC_FLAG(NIC_OFFLOAD); if (!enable && mlx5e_tc_num_filters(priv, tc_flag)) { netdev_err(netdev, "Active offloaded tc filters, can't turn hw_tc_offload off\n"); return -EINVAL; } #endif mutex_lock(&priv->state_lock); if (!enable && mlx5e_selq_is_htb_enabled(&priv->selq)) { netdev_err(netdev, "Active HTB offload, can't turn hw_tc_offload off\n"); err = -EINVAL; } mutex_unlock(&priv->state_lock); return err; } static int set_feature_rx_all(struct net_device *netdev, bool enable) { struct mlx5e_priv *priv = netdev_priv(netdev); struct mlx5_core_dev *mdev = priv->mdev; return mlx5_set_port_fcs(mdev, !enable); } static int mlx5e_set_rx_port_ts(struct mlx5_core_dev *mdev, bool enable) { u32 in[MLX5_ST_SZ_DW(pcmr_reg)] = {}; bool supported, curr_state; int err; if (!MLX5_CAP_GEN(mdev, ports_check)) return 0; err = mlx5_query_ports_check(mdev, in, sizeof(in)); if (err) return err; supported = MLX5_GET(pcmr_reg, in, rx_ts_over_crc_cap); curr_state = MLX5_GET(pcmr_reg, in, rx_ts_over_crc); if (!supported || enable == curr_state) return 0; MLX5_SET(pcmr_reg, in, local_port, 1); MLX5_SET(pcmr_reg, in, rx_ts_over_crc, enable); return mlx5_set_ports_check(mdev, in, sizeof(in)); } static int mlx5e_set_rx_port_ts_wrap(struct mlx5e_priv *priv, void *ctx) { struct mlx5_core_dev *mdev = priv->mdev; bool enable = *(bool *)ctx; return mlx5e_set_rx_port_ts(mdev, enable); } static int set_feature_rx_fcs(struct net_device *netdev, bool enable) { struct mlx5e_priv *priv = netdev_priv(netdev); struct mlx5e_channels *chs = &priv->channels; struct mlx5e_params new_params; int err; bool rx_ts_over_crc = !enable; mutex_lock(&priv->state_lock); new_params = chs->params; new_params.scatter_fcs_en = enable; err = mlx5e_safe_switch_params(priv, &new_params, mlx5e_set_rx_port_ts_wrap, &rx_ts_over_crc, true); mutex_unlock(&priv->state_lock); return err; } static int set_feature_rx_vlan(struct net_device *netdev, bool enable) { struct mlx5e_priv *priv = netdev_priv(netdev); int err = 0; mutex_lock(&priv->state_lock); mlx5e_fs_set_vlan_strip_disable(priv->fs, !enable); priv->channels.params.vlan_strip_disable = !enable; if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) goto unlock; err = mlx5e_modify_channels_vsd(&priv->channels, !enable); if (err) { mlx5e_fs_set_vlan_strip_disable(priv->fs, enable); priv->channels.params.vlan_strip_disable = enable; } unlock: mutex_unlock(&priv->state_lock); return err; } int mlx5e_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) { struct mlx5e_priv *priv = netdev_priv(dev); struct mlx5e_flow_steering *fs = priv->fs; if (mlx5e_is_uplink_rep(priv)) return 0; /* no vlan table for uplink rep */ return mlx5e_fs_vlan_rx_add_vid(fs, dev, proto, vid); } int mlx5e_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) { struct mlx5e_priv *priv = netdev_priv(dev); struct mlx5e_flow_steering *fs = priv->fs; if (mlx5e_is_uplink_rep(priv)) return 0; /* no vlan table for uplink rep */ return mlx5e_fs_vlan_rx_kill_vid(fs, dev, proto, vid); } #ifdef CONFIG_MLX5_EN_ARFS static int set_feature_arfs(struct net_device *netdev, bool enable) { struct mlx5e_priv *priv = netdev_priv(netdev); int err; if (enable) err = mlx5e_arfs_enable(priv->fs); else err = mlx5e_arfs_disable(priv->fs); return err; } #endif static int mlx5e_handle_feature(struct net_device *netdev, netdev_features_t *features, netdev_features_t feature, mlx5e_feature_handler feature_handler) { netdev_features_t changes = *features ^ netdev->features; bool enable = !!(*features & feature); int err; if (!(changes & feature)) return 0; err = feature_handler(netdev, enable); if (err) { MLX5E_SET_FEATURE(features, feature, !enable); netdev_err(netdev, "%s feature %pNF failed, err %d\n", enable ? "Enable" : "Disable", &feature, err); return err; } return 0; } void mlx5e_set_xdp_feature(struct net_device *netdev) { struct mlx5e_priv *priv = netdev_priv(netdev); struct mlx5e_params *params = &priv->channels.params; xdp_features_t val; if (params->packet_merge.type != MLX5E_PACKET_MERGE_NONE) { xdp_clear_features_flag(netdev); return; } val = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT | NETDEV_XDP_ACT_XSK_ZEROCOPY | NETDEV_XDP_ACT_RX_SG | NETDEV_XDP_ACT_NDO_XMIT | NETDEV_XDP_ACT_NDO_XMIT_SG; xdp_set_features_flag(netdev, val); } int mlx5e_set_features(struct net_device *netdev, netdev_features_t features) { netdev_features_t oper_features = features; int err = 0; #define MLX5E_HANDLE_FEATURE(feature, handler) \ mlx5e_handle_feature(netdev, &oper_features, feature, handler) err |= MLX5E_HANDLE_FEATURE(NETIF_F_LRO, set_feature_lro); err |= MLX5E_HANDLE_FEATURE(NETIF_F_GRO_HW, set_feature_hw_gro); err |= MLX5E_HANDLE_FEATURE(NETIF_F_HW_VLAN_CTAG_FILTER, set_feature_cvlan_filter); err |= MLX5E_HANDLE_FEATURE(NETIF_F_HW_TC, set_feature_hw_tc); err |= MLX5E_HANDLE_FEATURE(NETIF_F_RXALL, set_feature_rx_all); err |= MLX5E_HANDLE_FEATURE(NETIF_F_RXFCS, set_feature_rx_fcs); err |= MLX5E_HANDLE_FEATURE(NETIF_F_HW_VLAN_CTAG_RX, set_feature_rx_vlan); #ifdef CONFIG_MLX5_EN_ARFS err |= MLX5E_HANDLE_FEATURE(NETIF_F_NTUPLE, set_feature_arfs); #endif err |= MLX5E_HANDLE_FEATURE(NETIF_F_HW_TLS_RX, mlx5e_ktls_set_feature_rx); if (err) { netdev->features = oper_features; return -EINVAL; } /* update XDP supported features */ mlx5e_set_xdp_feature(netdev); return 0; } static netdev_features_t mlx5e_fix_uplink_rep_features(struct net_device *netdev, netdev_features_t features) { features &= ~NETIF_F_HW_TLS_RX; if (netdev->features & NETIF_F_HW_TLS_RX) netdev_warn(netdev, "Disabling hw_tls_rx, not supported in switchdev mode\n"); features &= ~NETIF_F_HW_TLS_TX; if (netdev->features & NETIF_F_HW_TLS_TX) netdev_warn(netdev, "Disabling hw_tls_tx, not supported in switchdev mode\n"); features &= ~NETIF_F_NTUPLE; if (netdev->features & NETIF_F_NTUPLE) netdev_warn(netdev, "Disabling ntuple, not supported in switchdev mode\n"); features &= ~NETIF_F_GRO_HW; if (netdev->features & NETIF_F_GRO_HW) netdev_warn(netdev, "Disabling HW_GRO, not supported in switchdev mode\n"); features &= ~NETIF_F_HW_VLAN_CTAG_FILTER; if (netdev->features & NETIF_F_HW_VLAN_CTAG_FILTER) netdev_warn(netdev, "Disabling HW_VLAN CTAG FILTERING, not supported in switchdev mode\n"); return features; } static netdev_features_t mlx5e_fix_features(struct net_device *netdev, netdev_features_t features) { struct mlx5e_priv *priv = netdev_priv(netdev); struct mlx5e_vlan_table *vlan; struct mlx5e_params *params; if (!netif_device_present(netdev)) return features; vlan = mlx5e_fs_get_vlan(priv->fs); mutex_lock(&priv->state_lock); params = &priv->channels.params; if (!vlan || !bitmap_empty(mlx5e_vlan_get_active_svlans(vlan), VLAN_N_VID)) { /* HW strips the outer C-tag header, this is a problem * for S-tag traffic. */ features &= ~NETIF_F_HW_VLAN_CTAG_RX; if (!params->vlan_strip_disable) netdev_warn(netdev, "Dropping C-tag vlan stripping offload due to S-tag vlan\n"); } if (!MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_STRIDING_RQ)) { if (features & NETIF_F_LRO) { netdev_warn(netdev, "Disabling LRO, not supported in legacy RQ\n"); features &= ~NETIF_F_LRO; } if (features & NETIF_F_GRO_HW) { netdev_warn(netdev, "Disabling HW-GRO, not supported in legacy RQ\n"); features &= ~NETIF_F_GRO_HW; } } if (params->xdp_prog) { if (features & NETIF_F_LRO) { netdev_warn(netdev, "LRO is incompatible with XDP\n"); features &= ~NETIF_F_LRO; } if (features & NETIF_F_GRO_HW) { netdev_warn(netdev, "HW GRO is incompatible with XDP\n"); features &= ~NETIF_F_GRO_HW; } } if (priv->xsk.refcnt) { if (features & NETIF_F_LRO) { netdev_warn(netdev, "LRO is incompatible with AF_XDP (%u XSKs are active)\n", priv->xsk.refcnt); features &= ~NETIF_F_LRO; } if (features & NETIF_F_GRO_HW) { netdev_warn(netdev, "HW GRO is incompatible with AF_XDP (%u XSKs are active)\n", priv->xsk.refcnt); features &= ~NETIF_F_GRO_HW; } } if (MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS)) { features &= ~NETIF_F_RXHASH; if (netdev->features & NETIF_F_RXHASH) netdev_warn(netdev, "Disabling rxhash, not supported when CQE compress is active\n"); if (features & NETIF_F_GRO_HW) { netdev_warn(netdev, "Disabling HW-GRO, not supported when CQE compress is active\n"); features &= ~NETIF_F_GRO_HW; } } if (mlx5e_is_uplink_rep(priv)) { features = mlx5e_fix_uplink_rep_features(netdev, features); features |= NETIF_F_NETNS_LOCAL; } else { features &= ~NETIF_F_NETNS_LOCAL; } mutex_unlock(&priv->state_lock); return features; } static bool mlx5e_xsk_validate_mtu(struct net_device *netdev, struct mlx5e_channels *chs, struct mlx5e_params *new_params, struct mlx5_core_dev *mdev) { u16 ix; for (ix = 0; ix < chs->params.num_channels; ix++) { struct xsk_buff_pool *xsk_pool = mlx5e_xsk_get_pool(&chs->params, chs->params.xsk, ix); struct mlx5e_xsk_param xsk; int max_xdp_mtu; if (!xsk_pool) continue; mlx5e_build_xsk_param(xsk_pool, &xsk); max_xdp_mtu = mlx5e_xdp_max_mtu(new_params, &xsk); /* Validate XSK params and XDP MTU in advance */ if (!mlx5e_validate_xsk_param(new_params, &xsk, mdev) || new_params->sw_mtu > max_xdp_mtu) { u32 hr = mlx5e_get_linear_rq_headroom(new_params, &xsk); int max_mtu_frame, max_mtu_page, max_mtu; /* Two criteria must be met: * 1. HW MTU + all headrooms <= XSK frame size. * 2. Size of SKBs allocated on XDP_PASS <= PAGE_SIZE. */ max_mtu_frame = MLX5E_HW2SW_MTU(new_params, xsk.chunk_size - hr); max_mtu_page = MLX5E_HW2SW_MTU(new_params, SKB_MAX_HEAD(0)); max_mtu = min3(max_mtu_frame, max_mtu_page, max_xdp_mtu); netdev_err(netdev, "MTU %d is too big for an XSK running on channel %u or its redirection XDP program. Try MTU <= %d\n", new_params->sw_mtu, ix, max_mtu); return false; } } return true; } static bool mlx5e_params_validate_xdp(struct net_device *netdev, struct mlx5_core_dev *mdev, struct mlx5e_params *params) { bool is_linear; /* No XSK params: AF_XDP can't be enabled yet at the point of setting * the XDP program. */ is_linear = params->rq_wq_type == MLX5_WQ_TYPE_CYCLIC ? mlx5e_rx_is_linear_skb(mdev, params, NULL) : mlx5e_rx_mpwqe_is_linear_skb(mdev, params, NULL); if (!is_linear) { if (!params->xdp_prog->aux->xdp_has_frags) { netdev_warn(netdev, "MTU(%d) > %d, too big for an XDP program not aware of multi buffer\n", params->sw_mtu, mlx5e_xdp_max_mtu(params, NULL)); return false; } if (params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ && !mlx5e_verify_params_rx_mpwqe_strides(mdev, params, NULL)) { netdev_warn(netdev, "XDP is not allowed with striding RQ and MTU(%d) > %d\n", params->sw_mtu, mlx5e_xdp_max_mtu(params, NULL)); return false; } } return true; } int mlx5e_change_mtu(struct net_device *netdev, int new_mtu, mlx5e_fp_preactivate preactivate) { struct mlx5e_priv *priv = netdev_priv(netdev); struct mlx5e_params new_params; struct mlx5e_params *params; bool reset = true; int err = 0; mutex_lock(&priv->state_lock); params = &priv->channels.params; new_params = *params; new_params.sw_mtu = new_mtu; err = mlx5e_validate_params(priv->mdev, &new_params); if (err) goto out; if (new_params.xdp_prog && !mlx5e_params_validate_xdp(netdev, priv->mdev, &new_params)) { err = -EINVAL; goto out; } if (priv->xsk.refcnt && !mlx5e_xsk_validate_mtu(netdev, &priv->channels, &new_params, priv->mdev)) { err = -EINVAL; goto out; } if (params->packet_merge.type == MLX5E_PACKET_MERGE_LRO) reset = false; if (params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ && params->packet_merge.type != MLX5E_PACKET_MERGE_SHAMPO) { bool is_linear_old = mlx5e_rx_mpwqe_is_linear_skb(priv->mdev, params, NULL); bool is_linear_new = mlx5e_rx_mpwqe_is_linear_skb(priv->mdev, &new_params, NULL); u8 sz_old = mlx5e_mpwqe_get_log_rq_size(priv->mdev, params, NULL); u8 sz_new = mlx5e_mpwqe_get_log_rq_size(priv->mdev, &new_params, NULL); /* Always reset in linear mode - hw_mtu is used in data path. * Check that the mode was non-linear and didn't change. * If XSK is active, XSK RQs are linear. * Reset if the RQ size changed, even if it's non-linear. */ if (!is_linear_old && !is_linear_new && !priv->xsk.refcnt && sz_old == sz_new) reset = false; } err = mlx5e_safe_switch_params(priv, &new_params, preactivate, NULL, reset); out: netdev->mtu = params->sw_mtu; mutex_unlock(&priv->state_lock); return err; } static int mlx5e_change_nic_mtu(struct net_device *netdev, int new_mtu) { return mlx5e_change_mtu(netdev, new_mtu, mlx5e_set_dev_port_mtu_ctx); } int mlx5e_ptp_rx_manage_fs_ctx(struct mlx5e_priv *priv, void *ctx) { bool set = *(bool *)ctx; return mlx5e_ptp_rx_manage_fs(priv, set); } static int mlx5e_hwstamp_config_no_ptp_rx(struct mlx5e_priv *priv, bool rx_filter) { bool rx_cqe_compress_def = priv->channels.params.rx_cqe_compress_def; int err; if (!rx_filter) /* Reset CQE compression to Admin default */ return mlx5e_modify_rx_cqe_compression_locked(priv, rx_cqe_compress_def, false); if (!MLX5E_GET_PFLAG(&priv->channels.params, MLX5E_PFLAG_RX_CQE_COMPRESS)) return 0; /* Disable CQE compression */ netdev_warn(priv->netdev, "Disabling RX cqe compression\n"); err = mlx5e_modify_rx_cqe_compression_locked(priv, false, true); if (err) netdev_err(priv->netdev, "Failed disabling cqe compression err=%d\n", err); return err; } static int mlx5e_hwstamp_config_ptp_rx(struct mlx5e_priv *priv, bool ptp_rx) { struct mlx5e_params new_params; if (ptp_rx == priv->channels.params.ptp_rx) return 0; new_params = priv->channels.params; new_params.ptp_rx = ptp_rx; return mlx5e_safe_switch_params(priv, &new_params, mlx5e_ptp_rx_manage_fs_ctx, &new_params.ptp_rx, true); } int mlx5e_hwstamp_set(struct mlx5e_priv *priv, struct ifreq *ifr) { struct hwtstamp_config config; bool rx_cqe_compress_def; bool ptp_rx; int err; if (!MLX5_CAP_GEN(priv->mdev, device_frequency_khz) || (mlx5_clock_get_ptp_index(priv->mdev) == -1)) return -EOPNOTSUPP; if (copy_from_user(&config, ifr->ifr_data, sizeof(config))) return -EFAULT; /* TX HW timestamp */ switch (config.tx_type) { case HWTSTAMP_TX_OFF: case HWTSTAMP_TX_ON: break; default: return -ERANGE; } mutex_lock(&priv->state_lock); rx_cqe_compress_def = priv->channels.params.rx_cqe_compress_def; /* RX HW timestamp */ switch (config.rx_filter) { case HWTSTAMP_FILTER_NONE: ptp_rx = false; break; case HWTSTAMP_FILTER_ALL: case HWTSTAMP_FILTER_SOME: case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: case HWTSTAMP_FILTER_PTP_V2_EVENT: case HWTSTAMP_FILTER_PTP_V2_SYNC: case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: case HWTSTAMP_FILTER_NTP_ALL: config.rx_filter = HWTSTAMP_FILTER_ALL; /* ptp_rx is set if both HW TS is set and CQE * compression is set */ ptp_rx = rx_cqe_compress_def; break; default: err = -ERANGE; goto err_unlock; } if (!mlx5e_profile_feature_cap(priv->profile, PTP_RX)) err = mlx5e_hwstamp_config_no_ptp_rx(priv, config.rx_filter != HWTSTAMP_FILTER_NONE); else err = mlx5e_hwstamp_config_ptp_rx(priv, ptp_rx); if (err) goto err_unlock; memcpy(&priv->tstamp, &config, sizeof(config)); mutex_unlock(&priv->state_lock); /* might need to fix some features */ netdev_update_features(priv->netdev); return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ? -EFAULT : 0; err_unlock: mutex_unlock(&priv->state_lock); return err; } int mlx5e_hwstamp_get(struct mlx5e_priv *priv, struct ifreq *ifr) { struct hwtstamp_config *cfg = &priv->tstamp; if (!MLX5_CAP_GEN(priv->mdev, device_frequency_khz)) return -EOPNOTSUPP; return copy_to_user(ifr->ifr_data, cfg, sizeof(*cfg)) ? -EFAULT : 0; } static int mlx5e_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { struct mlx5e_priv *priv = netdev_priv(dev); switch (cmd) { case SIOCSHWTSTAMP: return mlx5e_hwstamp_set(priv, ifr); case SIOCGHWTSTAMP: return mlx5e_hwstamp_get(priv, ifr); default: return -EOPNOTSUPP; } } #ifdef CONFIG_MLX5_ESWITCH int mlx5e_set_vf_mac(struct net_device *dev, int vf, u8 *mac) { struct mlx5e_priv *priv = netdev_priv(dev); struct mlx5_core_dev *mdev = priv->mdev; return mlx5_eswitch_set_vport_mac(mdev->priv.eswitch, vf + 1, mac); } static int mlx5e_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos, __be16 vlan_proto) { struct mlx5e_priv *priv = netdev_priv(dev); struct mlx5_core_dev *mdev = priv->mdev; if (vlan_proto != htons(ETH_P_8021Q)) return -EPROTONOSUPPORT; return mlx5_eswitch_set_vport_vlan(mdev->priv.eswitch, vf + 1, vlan, qos); } static int mlx5e_set_vf_spoofchk(struct net_device *dev, int vf, bool setting) { struct mlx5e_priv *priv = netdev_priv(dev); struct mlx5_core_dev *mdev = priv->mdev; return mlx5_eswitch_set_vport_spoofchk(mdev->priv.eswitch, vf + 1, setting); } static int mlx5e_set_vf_trust(struct net_device *dev, int vf, bool setting) { struct mlx5e_priv *priv = netdev_priv(dev); struct mlx5_core_dev *mdev = priv->mdev; return mlx5_eswitch_set_vport_trust(mdev->priv.eswitch, vf + 1, setting); } int mlx5e_set_vf_rate(struct net_device *dev, int vf, int min_tx_rate, int max_tx_rate) { struct mlx5e_priv *priv = netdev_priv(dev); struct mlx5_core_dev *mdev = priv->mdev; return mlx5_eswitch_set_vport_rate(mdev->priv.eswitch, vf + 1, max_tx_rate, min_tx_rate); } static int mlx5_vport_link2ifla(u8 esw_link) { switch (esw_link) { case MLX5_VPORT_ADMIN_STATE_DOWN: return IFLA_VF_LINK_STATE_DISABLE; case MLX5_VPORT_ADMIN_STATE_UP: return IFLA_VF_LINK_STATE_ENABLE; } return IFLA_VF_LINK_STATE_AUTO; } static int mlx5_ifla_link2vport(u8 ifla_link) { switch (ifla_link) { case IFLA_VF_LINK_STATE_DISABLE: return MLX5_VPORT_ADMIN_STATE_DOWN; case IFLA_VF_LINK_STATE_ENABLE: return MLX5_VPORT_ADMIN_STATE_UP; } return MLX5_VPORT_ADMIN_STATE_AUTO; } static int mlx5e_set_vf_link_state(struct net_device *dev, int vf, int link_state) { struct mlx5e_priv *priv = netdev_priv(dev); struct mlx5_core_dev *mdev = priv->mdev; if (mlx5e_is_uplink_rep(priv)) return -EOPNOTSUPP; return mlx5_eswitch_set_vport_state(mdev->priv.eswitch, vf + 1, mlx5_ifla_link2vport(link_state)); } int mlx5e_get_vf_config(struct net_device *dev, int vf, struct ifla_vf_info *ivi) { struct mlx5e_priv *priv = netdev_priv(dev); struct mlx5_core_dev *mdev = priv->mdev; int err; if (!netif_device_present(dev)) return -EOPNOTSUPP; err = mlx5_eswitch_get_vport_config(mdev->priv.eswitch, vf + 1, ivi); if (err) return err; ivi->linkstate = mlx5_vport_link2ifla(ivi->linkstate); return 0; } int mlx5e_get_vf_stats(struct net_device *dev, int vf, struct ifla_vf_stats *vf_stats) { struct mlx5e_priv *priv = netdev_priv(dev); struct mlx5_core_dev *mdev = priv->mdev; return mlx5_eswitch_get_vport_stats(mdev->priv.eswitch, vf + 1, vf_stats); } static bool mlx5e_has_offload_stats(const struct net_device *dev, int attr_id) { struct mlx5e_priv *priv = netdev_priv(dev); if (!netif_device_present(dev)) return false; if (!mlx5e_is_uplink_rep(priv)) return false; return mlx5e_rep_has_offload_stats(dev, attr_id); } static int mlx5e_get_offload_stats(int attr_id, const struct net_device *dev, void *sp) { struct mlx5e_priv *priv = netdev_priv(dev); if (!mlx5e_is_uplink_rep(priv)) return -EOPNOTSUPP; return mlx5e_rep_get_offload_stats(attr_id, dev, sp); } #endif static bool mlx5e_tunnel_proto_supported_tx(struct mlx5_core_dev *mdev, u8 proto_type) { switch (proto_type) { case IPPROTO_GRE: return MLX5_CAP_ETH(mdev, tunnel_stateless_gre); case IPPROTO_IPIP: case IPPROTO_IPV6: return (MLX5_CAP_ETH(mdev, tunnel_stateless_ip_over_ip) || MLX5_CAP_ETH(mdev, tunnel_stateless_ip_over_ip_tx)); default: return false; } } static bool mlx5e_gre_tunnel_inner_proto_offload_supported(struct mlx5_core_dev *mdev, struct sk_buff *skb) { switch (skb->inner_protocol) { case htons(ETH_P_IP): case htons(ETH_P_IPV6): case htons(ETH_P_TEB): return true; case htons(ETH_P_MPLS_UC): case htons(ETH_P_MPLS_MC): return MLX5_CAP_ETH(mdev, tunnel_stateless_mpls_over_gre); } return false; } static netdev_features_t mlx5e_tunnel_features_check(struct mlx5e_priv *priv, struct sk_buff *skb, netdev_features_t features) { unsigned int offset = 0; struct udphdr *udph; u8 proto; u16 port; switch (vlan_get_protocol(skb)) { case htons(ETH_P_IP): proto = ip_hdr(skb)->protocol; break; case htons(ETH_P_IPV6): proto = ipv6_find_hdr(skb, &offset, -1, NULL, NULL); break; default: goto out; } switch (proto) { case IPPROTO_GRE: if (mlx5e_gre_tunnel_inner_proto_offload_supported(priv->mdev, skb)) return features; break; case IPPROTO_IPIP: case IPPROTO_IPV6: if (mlx5e_tunnel_proto_supported_tx(priv->mdev, IPPROTO_IPIP)) return features; break; case IPPROTO_UDP: udph = udp_hdr(skb); port = be16_to_cpu(udph->dest); /* Verify if UDP port is being offloaded by HW */ if (mlx5_vxlan_lookup_port(priv->mdev->vxlan, port)) return features; #if IS_ENABLED(CONFIG_GENEVE) /* Support Geneve offload for default UDP port */ if (port == GENEVE_UDP_PORT && mlx5_geneve_tx_allowed(priv->mdev)) return features; #endif break; #ifdef CONFIG_MLX5_EN_IPSEC case IPPROTO_ESP: return mlx5e_ipsec_feature_check(skb, features); #endif } out: /* Disable CSUM and GSO if the udp dport is not offloaded by HW */ return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK); } netdev_features_t mlx5e_features_check(struct sk_buff *skb, struct net_device *netdev, netdev_features_t features) { struct mlx5e_priv *priv = netdev_priv(netdev); features = vlan_features_check(skb, features); features = vxlan_features_check(skb, features); /* Validate if the tunneled packet is being offloaded by HW */ if (skb->encapsulation && (features & NETIF_F_CSUM_MASK || features & NETIF_F_GSO_MASK)) return mlx5e_tunnel_features_check(priv, skb, features); return features; } static void mlx5e_tx_timeout_work(struct work_struct *work) { struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv, tx_timeout_work); struct net_device *netdev = priv->netdev; int i; /* Take rtnl_lock to ensure no change in netdev->real_num_tx_queues * through this flow. However, channel closing flows have to wait for * this work to finish while holding rtnl lock too. So either get the * lock or find that channels are being closed for other reason and * this work is not relevant anymore. */ while (!rtnl_trylock()) { if (!test_bit(MLX5E_STATE_CHANNELS_ACTIVE, &priv->state)) return; msleep(20); } if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) goto unlock; for (i = 0; i < netdev->real_num_tx_queues; i++) { struct netdev_queue *dev_queue = netdev_get_tx_queue(netdev, i); struct mlx5e_txqsq *sq = priv->txq2sq[i]; if (!netif_xmit_stopped(dev_queue)) continue; if (mlx5e_reporter_tx_timeout(sq)) /* break if tried to reopened channels */ break; } unlock: rtnl_unlock(); } static void mlx5e_tx_timeout(struct net_device *dev, unsigned int txqueue) { struct mlx5e_priv *priv = netdev_priv(dev); netdev_err(dev, "TX timeout detected\n"); queue_work(priv->wq, &priv->tx_timeout_work); } static int mlx5e_xdp_allowed(struct net_device *netdev, struct mlx5_core_dev *mdev, struct mlx5e_params *params) { if (params->packet_merge.type != MLX5E_PACKET_MERGE_NONE) { netdev_warn(netdev, "can't set XDP while HW-GRO/LRO is on, disable them first\n"); return -EINVAL; } if (!mlx5e_params_validate_xdp(netdev, mdev, params)) return -EINVAL; return 0; } static void mlx5e_rq_replace_xdp_prog(struct mlx5e_rq *rq, struct bpf_prog *prog) { struct bpf_prog *old_prog; old_prog = rcu_replace_pointer(rq->xdp_prog, prog, lockdep_is_held(&rq->priv->state_lock)); if (old_prog) bpf_prog_put(old_prog); } static int mlx5e_xdp_set(struct net_device *netdev, struct bpf_prog *prog) { struct mlx5e_priv *priv = netdev_priv(netdev); struct mlx5e_params new_params; struct bpf_prog *old_prog; int err = 0; bool reset; int i; mutex_lock(&priv->state_lock); new_params = priv->channels.params; new_params.xdp_prog = prog; if (prog) { err = mlx5e_xdp_allowed(netdev, priv->mdev, &new_params); if (err) goto unlock; } /* no need for full reset when exchanging programs */ reset = (!priv->channels.params.xdp_prog || !prog); old_prog = priv->channels.params.xdp_prog; err = mlx5e_safe_switch_params(priv, &new_params, NULL, NULL, reset); if (err) goto unlock; if (old_prog) bpf_prog_put(old_prog); if (!test_bit(MLX5E_STATE_OPENED, &priv->state) || reset) goto unlock; /* exchanging programs w/o reset, we update ref counts on behalf * of the channels RQs here. */ bpf_prog_add(prog, priv->channels.num); for (i = 0; i < priv->channels.num; i++) { struct mlx5e_channel *c = priv->channels.c[i]; mlx5e_rq_replace_xdp_prog(&c->rq, prog); if (test_bit(MLX5E_CHANNEL_STATE_XSK, c->state)) { bpf_prog_inc(prog); mlx5e_rq_replace_xdp_prog(&c->xskrq, prog); } } unlock: mutex_unlock(&priv->state_lock); /* Need to fix some features. */ if (!err) netdev_update_features(netdev); return err; } static int mlx5e_xdp(struct net_device *dev, struct netdev_bpf *xdp) { switch (xdp->command) { case XDP_SETUP_PROG: return mlx5e_xdp_set(dev, xdp->prog); case XDP_SETUP_XSK_POOL: return mlx5e_xsk_setup_pool(dev, xdp->xsk.pool, xdp->xsk.queue_id); default: return -EINVAL; } } #ifdef CONFIG_MLX5_ESWITCH static int mlx5e_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, u32 filter_mask, int nlflags) { struct mlx5e_priv *priv = netdev_priv(dev); struct mlx5_core_dev *mdev = priv->mdev; u8 mode, setting; int err; err = mlx5_eswitch_get_vepa(mdev->priv.eswitch, &setting); if (err) return err; mode = setting ? BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB; return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode, 0, 0, nlflags, filter_mask, NULL); } static int mlx5e_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags, struct netlink_ext_ack *extack) { struct mlx5e_priv *priv = netdev_priv(dev); struct mlx5_core_dev *mdev = priv->mdev; struct nlattr *attr, *br_spec; u16 mode = BRIDGE_MODE_UNDEF; u8 setting; int rem; br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); if (!br_spec) return -EINVAL; nla_for_each_nested(attr, br_spec, rem) { if (nla_type(attr) != IFLA_BRIDGE_MODE) continue; mode = nla_get_u16(attr); if (mode > BRIDGE_MODE_VEPA) return -EINVAL; break; } if (mode == BRIDGE_MODE_UNDEF) return -EINVAL; setting = (mode == BRIDGE_MODE_VEPA) ? 1 : 0; return mlx5_eswitch_set_vepa(mdev->priv.eswitch, setting); } #endif const struct net_device_ops mlx5e_netdev_ops = { .ndo_open = mlx5e_open, .ndo_stop = mlx5e_close, .ndo_start_xmit = mlx5e_xmit, .ndo_setup_tc = mlx5e_setup_tc, .ndo_select_queue = mlx5e_select_queue, .ndo_get_stats64 = mlx5e_get_stats, .ndo_set_rx_mode = mlx5e_set_rx_mode, .ndo_set_mac_address = mlx5e_set_mac, .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid, .ndo_set_features = mlx5e_set_features, .ndo_fix_features = mlx5e_fix_features, .ndo_change_mtu = mlx5e_change_nic_mtu, .ndo_eth_ioctl = mlx5e_ioctl, .ndo_set_tx_maxrate = mlx5e_set_tx_maxrate, .ndo_features_check = mlx5e_features_check, .ndo_tx_timeout = mlx5e_tx_timeout, .ndo_bpf = mlx5e_xdp, .ndo_xdp_xmit = mlx5e_xdp_xmit, .ndo_xsk_wakeup = mlx5e_xsk_wakeup, #ifdef CONFIG_MLX5_EN_ARFS .ndo_rx_flow_steer = mlx5e_rx_flow_steer, #endif #ifdef CONFIG_MLX5_ESWITCH .ndo_bridge_setlink = mlx5e_bridge_setlink, .ndo_bridge_getlink = mlx5e_bridge_getlink, /* SRIOV E-Switch NDOs */ .ndo_set_vf_mac = mlx5e_set_vf_mac, .ndo_set_vf_vlan = mlx5e_set_vf_vlan, .ndo_set_vf_spoofchk = mlx5e_set_vf_spoofchk, .ndo_set_vf_trust = mlx5e_set_vf_trust, .ndo_set_vf_rate = mlx5e_set_vf_rate, .ndo_get_vf_config = mlx5e_get_vf_config, .ndo_set_vf_link_state = mlx5e_set_vf_link_state, .ndo_get_vf_stats = mlx5e_get_vf_stats, .ndo_has_offload_stats = mlx5e_has_offload_stats, .ndo_get_offload_stats = mlx5e_get_offload_stats, #endif }; static u32 mlx5e_choose_lro_timeout(struct mlx5_core_dev *mdev, u32 wanted_timeout) { int i; /* The supported periods are organized in ascending order */ for (i = 0; i < MLX5E_LRO_TIMEOUT_ARR_SIZE - 1; i++) if (MLX5_CAP_ETH(mdev, lro_timer_supported_periods[i]) >= wanted_timeout) break; return MLX5_CAP_ETH(mdev, lro_timer_supported_periods[i]); } void mlx5e_build_nic_params(struct mlx5e_priv *priv, struct mlx5e_xsk *xsk, u16 mtu) { struct mlx5e_params *params = &priv->channels.params; struct mlx5_core_dev *mdev = priv->mdev; u8 rx_cq_period_mode; params->sw_mtu = mtu; params->hard_mtu = MLX5E_ETH_HARD_MTU; params->num_channels = min_t(unsigned int, MLX5E_MAX_NUM_CHANNELS / 2, priv->max_nch); mlx5e_params_mqprio_reset(params); /* SQ */ params->log_sq_size = is_kdump_kernel() ? MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE : MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE; MLX5E_SET_PFLAG(params, MLX5E_PFLAG_SKB_TX_MPWQE, mlx5e_tx_mpwqe_supported(mdev)); /* XDP SQ */ MLX5E_SET_PFLAG(params, MLX5E_PFLAG_XDP_TX_MPWQE, mlx5e_tx_mpwqe_supported(mdev)); /* set CQE compression */ params->rx_cqe_compress_def = false; if (MLX5_CAP_GEN(mdev, cqe_compression) && MLX5_CAP_GEN(mdev, vport_group_manager)) params->rx_cqe_compress_def = slow_pci_heuristic(mdev); MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS, params->rx_cqe_compress_def); MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_NO_CSUM_COMPLETE, false); /* RQ */ mlx5e_build_rq_params(mdev, params); params->terminate_lkey_be = mlx5_core_get_terminate_scatter_list_mkey(mdev); params->packet_merge.timeout = mlx5e_choose_lro_timeout(mdev, MLX5E_DEFAULT_LRO_TIMEOUT); /* CQ moderation params */ rx_cq_period_mode = MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ? MLX5_CQ_PERIOD_MODE_START_FROM_CQE : MLX5_CQ_PERIOD_MODE_START_FROM_EQE; params->rx_dim_enabled = MLX5_CAP_GEN(mdev, cq_moderation); params->tx_dim_enabled = MLX5_CAP_GEN(mdev, cq_moderation); mlx5e_set_rx_cq_mode_params(params, rx_cq_period_mode); mlx5e_set_tx_cq_mode_params(params, MLX5_CQ_PERIOD_MODE_START_FROM_EQE); /* TX inline */ mlx5_query_min_inline(mdev, ¶ms->tx_min_inline_mode); /* AF_XDP */ params->xsk = xsk; /* Do not update netdev->features directly in here * on mlx5e_attach_netdev() we will call mlx5e_update_features() * To update netdev->features please modify mlx5e_fix_features() */ } static void mlx5e_set_netdev_dev_addr(struct net_device *netdev) { struct mlx5e_priv *priv = netdev_priv(netdev); u8 addr[ETH_ALEN]; mlx5_query_mac_address(priv->mdev, addr); if (is_zero_ether_addr(addr) && !MLX5_CAP_GEN(priv->mdev, vport_group_manager)) { eth_hw_addr_random(netdev); mlx5_core_info(priv->mdev, "Assigned random MAC address %pM\n", netdev->dev_addr); return; } eth_hw_addr_set(netdev, addr); } static int mlx5e_vxlan_set_port(struct net_device *netdev, unsigned int table, unsigned int entry, struct udp_tunnel_info *ti) { struct mlx5e_priv *priv = netdev_priv(netdev); return mlx5_vxlan_add_port(priv->mdev->vxlan, ntohs(ti->port)); } static int mlx5e_vxlan_unset_port(struct net_device *netdev, unsigned int table, unsigned int entry, struct udp_tunnel_info *ti) { struct mlx5e_priv *priv = netdev_priv(netdev); return mlx5_vxlan_del_port(priv->mdev->vxlan, ntohs(ti->port)); } void mlx5e_vxlan_set_netdev_info(struct mlx5e_priv *priv) { if (!mlx5_vxlan_allowed(priv->mdev->vxlan)) return; priv->nic_info.set_port = mlx5e_vxlan_set_port; priv->nic_info.unset_port = mlx5e_vxlan_unset_port; priv->nic_info.flags = UDP_TUNNEL_NIC_INFO_MAY_SLEEP | UDP_TUNNEL_NIC_INFO_STATIC_IANA_VXLAN; priv->nic_info.tables[0].tunnel_types = UDP_TUNNEL_TYPE_VXLAN; /* Don't count the space hard-coded to the IANA port */ priv->nic_info.tables[0].n_entries = mlx5_vxlan_max_udp_ports(priv->mdev) - 1; priv->netdev->udp_tunnel_nic_info = &priv->nic_info; } static bool mlx5e_tunnel_any_tx_proto_supported(struct mlx5_core_dev *mdev) { int tt; for (tt = 0; tt < MLX5_NUM_TUNNEL_TT; tt++) { if (mlx5e_tunnel_proto_supported_tx(mdev, mlx5_get_proto_by_tunnel_type(tt))) return true; } return (mlx5_vxlan_allowed(mdev->vxlan) || mlx5_geneve_tx_allowed(mdev)); } static void mlx5e_build_nic_netdev(struct net_device *netdev) { struct mlx5e_priv *priv = netdev_priv(netdev); struct mlx5_core_dev *mdev = priv->mdev; bool fcs_supported; bool fcs_enabled; SET_NETDEV_DEV(netdev, mdev->device); netdev->netdev_ops = &mlx5e_netdev_ops; netdev->xdp_metadata_ops = &mlx5e_xdp_metadata_ops; mlx5e_dcbnl_build_netdev(netdev); netdev->watchdog_timeo = 15 * HZ; netdev->ethtool_ops = &mlx5e_ethtool_ops; netdev->vlan_features |= NETIF_F_SG; netdev->vlan_features |= NETIF_F_HW_CSUM; netdev->vlan_features |= NETIF_F_HW_MACSEC; netdev->vlan_features |= NETIF_F_GRO; netdev->vlan_features |= NETIF_F_TSO; netdev->vlan_features |= NETIF_F_TSO6; netdev->vlan_features |= NETIF_F_RXCSUM; netdev->vlan_features |= NETIF_F_RXHASH; netdev->vlan_features |= NETIF_F_GSO_PARTIAL; netdev->mpls_features |= NETIF_F_SG; netdev->mpls_features |= NETIF_F_HW_CSUM; netdev->mpls_features |= NETIF_F_TSO; netdev->mpls_features |= NETIF_F_TSO6; netdev->hw_enc_features |= NETIF_F_HW_VLAN_CTAG_TX; netdev->hw_enc_features |= NETIF_F_HW_VLAN_CTAG_RX; /* Tunneled LRO is not supported in the driver, and the same RQs are * shared between inner and outer TIRs, so the driver can't disable LRO * for inner TIRs while having it enabled for outer TIRs. Due to this, * block LRO altogether if the firmware declares tunneled LRO support. */ if (!!MLX5_CAP_ETH(mdev, lro_cap) && !MLX5_CAP_ETH(mdev, tunnel_lro_vxlan) && !MLX5_CAP_ETH(mdev, tunnel_lro_gre) && mlx5e_check_fragmented_striding_rq_cap(mdev, PAGE_SHIFT, MLX5E_MPWRQ_UMR_MODE_ALIGNED)) netdev->vlan_features |= NETIF_F_LRO; netdev->hw_features = netdev->vlan_features; netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX; netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX; netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER; netdev->hw_features |= NETIF_F_HW_VLAN_STAG_TX; if (mlx5e_tunnel_any_tx_proto_supported(mdev)) { netdev->hw_enc_features |= NETIF_F_HW_CSUM; netdev->hw_enc_features |= NETIF_F_TSO; netdev->hw_enc_features |= NETIF_F_TSO6; netdev->hw_enc_features |= NETIF_F_GSO_PARTIAL; } if (mlx5_vxlan_allowed(mdev->vxlan) || mlx5_geneve_tx_allowed(mdev)) { netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_UDP_TUNNEL_CSUM; netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_UDP_TUNNEL_CSUM; netdev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM; netdev->vlan_features |= NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_UDP_TUNNEL_CSUM; } if (mlx5e_tunnel_proto_supported_tx(mdev, IPPROTO_GRE)) { netdev->hw_features |= NETIF_F_GSO_GRE | NETIF_F_GSO_GRE_CSUM; netdev->hw_enc_features |= NETIF_F_GSO_GRE | NETIF_F_GSO_GRE_CSUM; netdev->gso_partial_features |= NETIF_F_GSO_GRE | NETIF_F_GSO_GRE_CSUM; } if (mlx5e_tunnel_proto_supported_tx(mdev, IPPROTO_IPIP)) { netdev->hw_features |= NETIF_F_GSO_IPXIP4 | NETIF_F_GSO_IPXIP6; netdev->hw_enc_features |= NETIF_F_GSO_IPXIP4 | NETIF_F_GSO_IPXIP6; netdev->gso_partial_features |= NETIF_F_GSO_IPXIP4 | NETIF_F_GSO_IPXIP6; } netdev->gso_partial_features |= NETIF_F_GSO_UDP_L4; netdev->hw_features |= NETIF_F_GSO_UDP_L4; netdev->features |= NETIF_F_GSO_UDP_L4; mlx5_query_port_fcs(mdev, &fcs_supported, &fcs_enabled); if (fcs_supported) netdev->hw_features |= NETIF_F_RXALL; if (MLX5_CAP_ETH(mdev, scatter_fcs)) netdev->hw_features |= NETIF_F_RXFCS; if (mlx5_qos_is_supported(mdev)) netdev->hw_features |= NETIF_F_HW_TC; netdev->features = netdev->hw_features; /* Defaults */ if (fcs_enabled) netdev->features &= ~NETIF_F_RXALL; netdev->features &= ~NETIF_F_LRO; netdev->features &= ~NETIF_F_GRO_HW; netdev->features &= ~NETIF_F_RXFCS; #define FT_CAP(f) MLX5_CAP_FLOWTABLE(mdev, flow_table_properties_nic_receive.f) if (FT_CAP(flow_modify_en) && FT_CAP(modify_root) && FT_CAP(identified_miss_table_mode) && FT_CAP(flow_table_modify)) { #if IS_ENABLED(CONFIG_MLX5_CLS_ACT) netdev->hw_features |= NETIF_F_HW_TC; #endif #ifdef CONFIG_MLX5_EN_ARFS netdev->hw_features |= NETIF_F_NTUPLE; #endif } netdev->features |= NETIF_F_HIGHDMA; netdev->features |= NETIF_F_HW_VLAN_STAG_FILTER; netdev->priv_flags |= IFF_UNICAST_FLT; netif_set_tso_max_size(netdev, GSO_MAX_SIZE); mlx5e_set_xdp_feature(netdev); mlx5e_set_netdev_dev_addr(netdev); mlx5e_macsec_build_netdev(priv); mlx5e_ipsec_build_netdev(priv); mlx5e_ktls_build_netdev(priv); } void mlx5e_create_q_counters(struct mlx5e_priv *priv) { u32 out[MLX5_ST_SZ_DW(alloc_q_counter_out)] = {}; u32 in[MLX5_ST_SZ_DW(alloc_q_counter_in)] = {}; struct mlx5_core_dev *mdev = priv->mdev; int err; MLX5_SET(alloc_q_counter_in, in, opcode, MLX5_CMD_OP_ALLOC_Q_COUNTER); err = mlx5_cmd_exec_inout(mdev, alloc_q_counter, in, out); if (!err) priv->q_counter = MLX5_GET(alloc_q_counter_out, out, counter_set_id); err = mlx5_cmd_exec_inout(mdev, alloc_q_counter, in, out); if (!err) priv->drop_rq_q_counter = MLX5_GET(alloc_q_counter_out, out, counter_set_id); } void mlx5e_destroy_q_counters(struct mlx5e_priv *priv) { u32 in[MLX5_ST_SZ_DW(dealloc_q_counter_in)] = {}; MLX5_SET(dealloc_q_counter_in, in, opcode, MLX5_CMD_OP_DEALLOC_Q_COUNTER); if (priv->q_counter) { MLX5_SET(dealloc_q_counter_in, in, counter_set_id, priv->q_counter); mlx5_cmd_exec_in(priv->mdev, dealloc_q_counter, in); } if (priv->drop_rq_q_counter) { MLX5_SET(dealloc_q_counter_in, in, counter_set_id, priv->drop_rq_q_counter); mlx5_cmd_exec_in(priv->mdev, dealloc_q_counter, in); } } static int mlx5e_nic_init(struct mlx5_core_dev *mdev, struct net_device *netdev) { const bool take_rtnl = netdev->reg_state == NETREG_REGISTERED; struct mlx5e_priv *priv = netdev_priv(netdev); struct mlx5e_flow_steering *fs; int err; mlx5e_build_nic_params(priv, &priv->xsk, netdev->mtu); mlx5e_vxlan_set_netdev_info(priv); mlx5e_timestamp_init(priv); priv->dfs_root = debugfs_create_dir("nic", mlx5_debugfs_get_dev_root(mdev)); fs = mlx5e_fs_init(priv->profile, mdev, !test_bit(MLX5E_STATE_DESTROYING, &priv->state), priv->dfs_root); if (!fs) { err = -ENOMEM; mlx5_core_err(mdev, "FS initialization failed, %d\n", err); debugfs_remove_recursive(priv->dfs_root); return err; } priv->fs = fs; err = mlx5e_ktls_init(priv); if (err) mlx5_core_err(mdev, "TLS initialization failed, %d\n", err); mlx5e_health_create_reporters(priv); /* If netdev is already registered (e.g. move from uplink to nic profile), * RTNL lock must be held before triggering netdev notifiers. */ if (take_rtnl) rtnl_lock(); /* update XDP supported features */ mlx5e_set_xdp_feature(netdev); if (take_rtnl) rtnl_unlock(); return 0; } static void mlx5e_nic_cleanup(struct mlx5e_priv *priv) { mlx5e_health_destroy_reporters(priv); mlx5e_ktls_cleanup(priv); mlx5e_fs_cleanup(priv->fs); debugfs_remove_recursive(priv->dfs_root); priv->fs = NULL; } static int mlx5e_init_nic_rx(struct mlx5e_priv *priv) { struct mlx5_core_dev *mdev = priv->mdev; enum mlx5e_rx_res_features features; int err; mlx5e_create_q_counters(priv); err = mlx5e_open_drop_rq(priv, &priv->drop_rq); if (err) { mlx5_core_err(mdev, "open drop rq failed, %d\n", err); goto err_destroy_q_counters; } features = MLX5E_RX_RES_FEATURE_PTP; if (mlx5_tunnel_inner_ft_supported(mdev)) features |= MLX5E_RX_RES_FEATURE_INNER_FT; priv->rx_res = mlx5e_rx_res_create(priv->mdev, features, priv->max_nch, priv->drop_rq.rqn, &priv->channels.params.packet_merge, priv->channels.params.num_channels); if (IS_ERR(priv->rx_res)) { err = PTR_ERR(priv->rx_res); priv->rx_res = NULL; mlx5_core_err(mdev, "create rx resources failed, %d\n", err); goto err_close_drop_rq; } err = mlx5e_create_flow_steering(priv->fs, priv->rx_res, priv->profile, priv->netdev); if (err) { mlx5_core_warn(mdev, "create flow steering failed, %d\n", err); goto err_destroy_rx_res; } err = mlx5e_tc_nic_init(priv); if (err) goto err_destroy_flow_steering; err = mlx5e_accel_init_rx(priv); if (err) goto err_tc_nic_cleanup; #ifdef CONFIG_MLX5_EN_ARFS priv->netdev->rx_cpu_rmap = mlx5_eq_table_get_rmap(priv->mdev); #endif return 0; err_tc_nic_cleanup: mlx5e_tc_nic_cleanup(priv); err_destroy_flow_steering: mlx5e_destroy_flow_steering(priv->fs, !!(priv->netdev->hw_features & NETIF_F_NTUPLE), priv->profile); err_destroy_rx_res: mlx5e_rx_res_destroy(priv->rx_res); priv->rx_res = NULL; err_close_drop_rq: mlx5e_close_drop_rq(&priv->drop_rq); err_destroy_q_counters: mlx5e_destroy_q_counters(priv); return err; } static void mlx5e_cleanup_nic_rx(struct mlx5e_priv *priv) { mlx5e_accel_cleanup_rx(priv); mlx5e_tc_nic_cleanup(priv); mlx5e_destroy_flow_steering(priv->fs, !!(priv->netdev->hw_features & NETIF_F_NTUPLE), priv->profile); mlx5e_rx_res_destroy(priv->rx_res); priv->rx_res = NULL; mlx5e_close_drop_rq(&priv->drop_rq); mlx5e_destroy_q_counters(priv); } static void mlx5e_set_mqprio_rl(struct mlx5e_priv *priv) { struct mlx5e_params *params; struct mlx5e_mqprio_rl *rl; params = &priv->channels.params; if (params->mqprio.mode != TC_MQPRIO_MODE_CHANNEL) return; rl = mlx5e_mqprio_rl_create(priv->mdev, params->mqprio.num_tc, params->mqprio.channel.max_rate); if (IS_ERR(rl)) rl = NULL; priv->mqprio_rl = rl; mlx5e_mqprio_rl_update_params(params, rl); } static int mlx5e_init_nic_tx(struct mlx5e_priv *priv) { int err; err = mlx5e_create_tises(priv); if (err) { mlx5_core_warn(priv->mdev, "create tises failed, %d\n", err); return err; } err = mlx5e_accel_init_tx(priv); if (err) goto err_destroy_tises; mlx5e_set_mqprio_rl(priv); mlx5e_dcbnl_initialize(priv); return 0; err_destroy_tises: mlx5e_destroy_tises(priv); return err; } static void mlx5e_nic_enable(struct mlx5e_priv *priv) { struct net_device *netdev = priv->netdev; struct mlx5_core_dev *mdev = priv->mdev; int err; mlx5e_fs_init_l2_addr(priv->fs, netdev); mlx5e_ipsec_init(priv); err = mlx5e_macsec_init(priv); if (err) mlx5_core_err(mdev, "MACsec initialization failed, %d\n", err); /* Marking the link as currently not needed by the Driver */ if (!netif_running(netdev)) mlx5e_modify_admin_state(mdev, MLX5_PORT_DOWN); mlx5e_set_netdev_mtu_boundaries(priv); mlx5e_set_dev_port_mtu(priv); mlx5_lag_add_netdev(mdev, netdev); mlx5e_enable_async_events(priv); mlx5e_enable_blocking_events(priv); if (mlx5e_monitor_counter_supported(priv)) mlx5e_monitor_counter_init(priv); mlx5e_hv_vhca_stats_create(priv); if (netdev->reg_state != NETREG_REGISTERED) return; mlx5e_dcbnl_init_app(priv); mlx5e_nic_set_rx_mode(priv); rtnl_lock(); if (netif_running(netdev)) mlx5e_open(netdev); udp_tunnel_nic_reset_ntf(priv->netdev); netif_device_attach(netdev); rtnl_unlock(); } static void mlx5e_nic_disable(struct mlx5e_priv *priv) { struct mlx5_core_dev *mdev = priv->mdev; if (priv->netdev->reg_state == NETREG_REGISTERED) mlx5e_dcbnl_delete_app(priv); rtnl_lock(); if (netif_running(priv->netdev)) mlx5e_close(priv->netdev); netif_device_detach(priv->netdev); rtnl_unlock(); mlx5e_nic_set_rx_mode(priv); mlx5e_hv_vhca_stats_destroy(priv); if (mlx5e_monitor_counter_supported(priv)) mlx5e_monitor_counter_cleanup(priv); mlx5e_disable_blocking_events(priv); if (priv->en_trap) { mlx5e_deactivate_trap(priv); mlx5e_close_trap(priv->en_trap); priv->en_trap = NULL; } mlx5e_disable_async_events(priv); mlx5_lag_remove_netdev(mdev, priv->netdev); mlx5_vxlan_reset_to_default(mdev->vxlan); mlx5e_macsec_cleanup(priv); mlx5e_ipsec_cleanup(priv); } int mlx5e_update_nic_rx(struct mlx5e_priv *priv) { return mlx5e_refresh_tirs(priv, false, false); } static const struct mlx5e_profile mlx5e_nic_profile = { .init = mlx5e_nic_init, .cleanup = mlx5e_nic_cleanup, .init_rx = mlx5e_init_nic_rx, .cleanup_rx = mlx5e_cleanup_nic_rx, .init_tx = mlx5e_init_nic_tx, .cleanup_tx = mlx5e_cleanup_nic_tx, .enable = mlx5e_nic_enable, .disable = mlx5e_nic_disable, .update_rx = mlx5e_update_nic_rx, .update_stats = mlx5e_stats_update_ndo_stats, .update_carrier = mlx5e_update_carrier, .rx_handlers = &mlx5e_rx_handlers_nic, .max_tc = MLX5E_MAX_NUM_TC, .stats_grps = mlx5e_nic_stats_grps, .stats_grps_num = mlx5e_nic_stats_grps_num, .features = BIT(MLX5E_PROFILE_FEATURE_PTP_RX) | BIT(MLX5E_PROFILE_FEATURE_PTP_TX) | BIT(MLX5E_PROFILE_FEATURE_QOS_HTB) | BIT(MLX5E_PROFILE_FEATURE_FS_VLAN) | BIT(MLX5E_PROFILE_FEATURE_FS_TC), }; static int mlx5e_profile_max_num_channels(struct mlx5_core_dev *mdev, const struct mlx5e_profile *profile) { int nch; nch = mlx5e_get_max_num_channels(mdev); if (profile->max_nch_limit) nch = min_t(int, nch, profile->max_nch_limit(mdev)); return nch; } static unsigned int mlx5e_calc_max_nch(struct mlx5_core_dev *mdev, struct net_device *netdev, const struct mlx5e_profile *profile) { unsigned int max_nch, tmp; /* core resources */ max_nch = mlx5e_profile_max_num_channels(mdev, profile); /* netdev rx queues */ max_nch = min_t(unsigned int, max_nch, netdev->num_rx_queues); /* netdev tx queues */ tmp = netdev->num_tx_queues; if (mlx5_qos_is_supported(mdev)) tmp -= mlx5e_qos_max_leaf_nodes(mdev); if (MLX5_CAP_GEN(mdev, ts_cqe_to_dest_cqn)) tmp -= profile->max_tc; tmp = tmp / profile->max_tc; max_nch = min_t(unsigned int, max_nch, tmp); return max_nch; } int mlx5e_get_pf_num_tirs(struct mlx5_core_dev *mdev) { /* Indirect TIRS: 2 sets of TTCs (inner + outer steering) * and 1 set of direct TIRS */ return 2 * MLX5E_NUM_INDIR_TIRS + mlx5e_profile_max_num_channels(mdev, &mlx5e_nic_profile); } void mlx5e_set_rx_mode_work(struct work_struct *work) { struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv, set_rx_mode_work); return mlx5e_fs_set_rx_mode_work(priv->fs, priv->netdev); } /* mlx5e generic netdev management API (move to en_common.c) */ int mlx5e_priv_init(struct mlx5e_priv *priv, const struct mlx5e_profile *profile, struct net_device *netdev, struct mlx5_core_dev *mdev) { int nch, num_txqs, node; int err; num_txqs = netdev->num_tx_queues; nch = mlx5e_calc_max_nch(mdev, netdev, profile); node = dev_to_node(mlx5_core_dma_dev(mdev)); /* priv init */ priv->mdev = mdev; priv->netdev = netdev; priv->max_nch = nch; priv->max_opened_tc = 1; if (!alloc_cpumask_var(&priv->scratchpad.cpumask, GFP_KERNEL)) return -ENOMEM; mutex_init(&priv->state_lock); err = mlx5e_selq_init(&priv->selq, &priv->state_lock); if (err) goto err_free_cpumask; INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work); INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work); INIT_WORK(&priv->tx_timeout_work, mlx5e_tx_timeout_work); INIT_WORK(&priv->update_stats_work, mlx5e_update_stats_work); priv->wq = create_singlethread_workqueue("mlx5e"); if (!priv->wq) goto err_free_selq; priv->txq2sq = kcalloc_node(num_txqs, sizeof(*priv->txq2sq), GFP_KERNEL, node); if (!priv->txq2sq) goto err_destroy_workqueue; priv->tx_rates = kcalloc_node(num_txqs, sizeof(*priv->tx_rates), GFP_KERNEL, node); if (!priv->tx_rates) goto err_free_txq2sq; priv->channel_stats = kcalloc_node(nch, sizeof(*priv->channel_stats), GFP_KERNEL, node); if (!priv->channel_stats) goto err_free_tx_rates; return 0; err_free_tx_rates: kfree(priv->tx_rates); err_free_txq2sq: kfree(priv->txq2sq); err_destroy_workqueue: destroy_workqueue(priv->wq); err_free_selq: mlx5e_selq_cleanup(&priv->selq); err_free_cpumask: free_cpumask_var(priv->scratchpad.cpumask); return -ENOMEM; } void mlx5e_priv_cleanup(struct mlx5e_priv *priv) { int i; /* bail if change profile failed and also rollback failed */ if (!priv->mdev) return; for (i = 0; i < priv->stats_nch; i++) kvfree(priv->channel_stats[i]); kfree(priv->channel_stats); kfree(priv->tx_rates); kfree(priv->txq2sq); destroy_workqueue(priv->wq); mutex_lock(&priv->state_lock); mlx5e_selq_cleanup(&priv->selq); mutex_unlock(&priv->state_lock); free_cpumask_var(priv->scratchpad.cpumask); for (i = 0; i < priv->htb_max_qos_sqs; i++) kfree(priv->htb_qos_sq_stats[i]); kvfree(priv->htb_qos_sq_stats); memset(priv, 0, sizeof(*priv)); } static unsigned int mlx5e_get_max_num_txqs(struct mlx5_core_dev *mdev, const struct mlx5e_profile *profile) { unsigned int nch, ptp_txqs, qos_txqs; nch = mlx5e_profile_max_num_channels(mdev, profile); ptp_txqs = MLX5_CAP_GEN(mdev, ts_cqe_to_dest_cqn) && mlx5e_profile_feature_cap(profile, PTP_TX) ? profile->max_tc : 0; qos_txqs = mlx5_qos_is_supported(mdev) && mlx5e_profile_feature_cap(profile, QOS_HTB) ? mlx5e_qos_max_leaf_nodes(mdev) : 0; return nch * profile->max_tc + ptp_txqs + qos_txqs; } static unsigned int mlx5e_get_max_num_rxqs(struct mlx5_core_dev *mdev, const struct mlx5e_profile *profile) { return mlx5e_profile_max_num_channels(mdev, profile); } struct net_device * mlx5e_create_netdev(struct mlx5_core_dev *mdev, const struct mlx5e_profile *profile) { struct net_device *netdev; unsigned int txqs, rxqs; int err; txqs = mlx5e_get_max_num_txqs(mdev, profile); rxqs = mlx5e_get_max_num_rxqs(mdev, profile); netdev = alloc_etherdev_mqs(sizeof(struct mlx5e_priv), txqs, rxqs); if (!netdev) { mlx5_core_err(mdev, "alloc_etherdev_mqs() failed\n"); return NULL; } err = mlx5e_priv_init(netdev_priv(netdev), profile, netdev, mdev); if (err) { mlx5_core_err(mdev, "mlx5e_priv_init failed, err=%d\n", err); goto err_free_netdev; } netif_carrier_off(netdev); netif_tx_disable(netdev); dev_net_set(netdev, mlx5_core_net(mdev)); return netdev; err_free_netdev: free_netdev(netdev); return NULL; } static void mlx5e_update_features(struct net_device *netdev) { if (netdev->reg_state != NETREG_REGISTERED) return; /* features will be updated on netdev registration */ rtnl_lock(); netdev_update_features(netdev); rtnl_unlock(); } static void mlx5e_reset_channels(struct net_device *netdev) { netdev_reset_tc(netdev); } int mlx5e_attach_netdev(struct mlx5e_priv *priv) { const bool take_rtnl = priv->netdev->reg_state == NETREG_REGISTERED; const struct mlx5e_profile *profile = priv->profile; int max_nch; int err; clear_bit(MLX5E_STATE_DESTROYING, &priv->state); if (priv->fs) mlx5e_fs_set_state_destroy(priv->fs, !test_bit(MLX5E_STATE_DESTROYING, &priv->state)); /* Validate the max_wqe_size_sq capability. */ if (WARN_ON_ONCE(mlx5e_get_max_sq_wqebbs(priv->mdev) < MLX5E_MAX_TX_WQEBBS)) { mlx5_core_warn(priv->mdev, "MLX5E: Max SQ WQEBBs firmware capability: %u, needed %u\n", mlx5e_get_max_sq_wqebbs(priv->mdev), (unsigned int)MLX5E_MAX_TX_WQEBBS); return -EIO; } /* max number of channels may have changed */ max_nch = mlx5e_calc_max_nch(priv->mdev, priv->netdev, profile); if (priv->channels.params.num_channels > max_nch) { mlx5_core_warn(priv->mdev, "MLX5E: Reducing number of channels to %d\n", max_nch); /* Reducing the number of channels - RXFH has to be reset, and * mlx5e_num_channels_changed below will build the RQT. */ priv->netdev->priv_flags &= ~IFF_RXFH_CONFIGURED; priv->channels.params.num_channels = max_nch; if (priv->channels.params.mqprio.mode == TC_MQPRIO_MODE_CHANNEL) { mlx5_core_warn(priv->mdev, "MLX5E: Disabling MQPRIO channel mode\n"); mlx5e_params_mqprio_reset(&priv->channels.params); } } if (max_nch != priv->max_nch) { mlx5_core_warn(priv->mdev, "MLX5E: Updating max number of channels from %u to %u\n", priv->max_nch, max_nch); priv->max_nch = max_nch; } /* 1. Set the real number of queues in the kernel the first time. * 2. Set our default XPS cpumask. * 3. Build the RQT. * * rtnl_lock is required by netif_set_real_num_*_queues in case the * netdev has been registered by this point (if this function was called * in the reload or resume flow). */ if (take_rtnl) rtnl_lock(); err = mlx5e_num_channels_changed(priv); if (take_rtnl) rtnl_unlock(); if (err) goto out; err = profile->init_tx(priv); if (err) goto out; err = profile->init_rx(priv); if (err) goto err_cleanup_tx; if (profile->enable) profile->enable(priv); mlx5e_update_features(priv->netdev); return 0; err_cleanup_tx: profile->cleanup_tx(priv); out: mlx5e_reset_channels(priv->netdev); set_bit(MLX5E_STATE_DESTROYING, &priv->state); if (priv->fs) mlx5e_fs_set_state_destroy(priv->fs, !test_bit(MLX5E_STATE_DESTROYING, &priv->state)); cancel_work_sync(&priv->update_stats_work); return err; } void mlx5e_detach_netdev(struct mlx5e_priv *priv) { const struct mlx5e_profile *profile = priv->profile; set_bit(MLX5E_STATE_DESTROYING, &priv->state); if (priv->fs) mlx5e_fs_set_state_destroy(priv->fs, !test_bit(MLX5E_STATE_DESTROYING, &priv->state)); if (profile->disable) profile->disable(priv); flush_workqueue(priv->wq); profile->cleanup_rx(priv); profile->cleanup_tx(priv); mlx5e_reset_channels(priv->netdev); cancel_work_sync(&priv->update_stats_work); } static int mlx5e_netdev_init_profile(struct net_device *netdev, struct mlx5_core_dev *mdev, const struct mlx5e_profile *new_profile, void *new_ppriv) { struct mlx5e_priv *priv = netdev_priv(netdev); int err; err = mlx5e_priv_init(priv, new_profile, netdev, mdev); if (err) { mlx5_core_err(mdev, "mlx5e_priv_init failed, err=%d\n", err); return err; } netif_carrier_off(netdev); priv->profile = new_profile; priv->ppriv = new_ppriv; err = new_profile->init(priv->mdev, priv->netdev); if (err) goto priv_cleanup; return 0; priv_cleanup: mlx5e_priv_cleanup(priv); return err; } static int mlx5e_netdev_attach_profile(struct net_device *netdev, struct mlx5_core_dev *mdev, const struct mlx5e_profile *new_profile, void *new_ppriv) { struct mlx5e_priv *priv = netdev_priv(netdev); int err; err = mlx5e_netdev_init_profile(netdev, mdev, new_profile, new_ppriv); if (err) return err; err = mlx5e_attach_netdev(priv); if (err) goto profile_cleanup; return err; profile_cleanup: new_profile->cleanup(priv); mlx5e_priv_cleanup(priv); return err; } int mlx5e_netdev_change_profile(struct mlx5e_priv *priv, const struct mlx5e_profile *new_profile, void *new_ppriv) { const struct mlx5e_profile *orig_profile = priv->profile; struct net_device *netdev = priv->netdev; struct mlx5_core_dev *mdev = priv->mdev; void *orig_ppriv = priv->ppriv; int err, rollback_err; /* cleanup old profile */ mlx5e_detach_netdev(priv); priv->profile->cleanup(priv); mlx5e_priv_cleanup(priv); if (mdev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR) { mlx5e_netdev_init_profile(netdev, mdev, new_profile, new_ppriv); set_bit(MLX5E_STATE_DESTROYING, &priv->state); return -EIO; } err = mlx5e_netdev_attach_profile(netdev, mdev, new_profile, new_ppriv); if (err) { /* roll back to original profile */ netdev_warn(netdev, "%s: new profile init failed, %d\n", __func__, err); goto rollback; } return 0; rollback: rollback_err = mlx5e_netdev_attach_profile(netdev, mdev, orig_profile, orig_ppriv); if (rollback_err) netdev_err(netdev, "%s: failed to rollback to orig profile, %d\n", __func__, rollback_err); return err; } void mlx5e_netdev_attach_nic_profile(struct mlx5e_priv *priv) { mlx5e_netdev_change_profile(priv, &mlx5e_nic_profile, NULL); } void mlx5e_destroy_netdev(struct mlx5e_priv *priv) { struct net_device *netdev = priv->netdev; mlx5e_priv_cleanup(priv); free_netdev(netdev); } static int mlx5e_resume(struct auxiliary_device *adev) { struct mlx5_adev *edev = container_of(adev, struct mlx5_adev, adev); struct mlx5e_dev *mlx5e_dev = auxiliary_get_drvdata(adev); struct mlx5e_priv *priv = mlx5e_dev->priv; struct net_device *netdev = priv->netdev; struct mlx5_core_dev *mdev = edev->mdev; int err; if (netif_device_present(netdev)) return 0; err = mlx5e_create_mdev_resources(mdev); if (err) return err; err = mlx5e_attach_netdev(priv); if (err) { mlx5e_destroy_mdev_resources(mdev); return err; } return 0; } static int mlx5e_suspend(struct auxiliary_device *adev, pm_message_t state) { struct mlx5e_dev *mlx5e_dev = auxiliary_get_drvdata(adev); struct mlx5e_priv *priv = mlx5e_dev->priv; struct net_device *netdev = priv->netdev; struct mlx5_core_dev *mdev = priv->mdev; if (!netif_device_present(netdev)) { if (test_bit(MLX5E_STATE_DESTROYING, &priv->state)) mlx5e_destroy_mdev_resources(mdev); return -ENODEV; } mlx5e_detach_netdev(priv); mlx5e_destroy_mdev_resources(mdev); return 0; } static int mlx5e_probe(struct auxiliary_device *adev, const struct auxiliary_device_id *id) { struct mlx5_adev *edev = container_of(adev, struct mlx5_adev, adev); const struct mlx5e_profile *profile = &mlx5e_nic_profile; struct mlx5_core_dev *mdev = edev->mdev; struct mlx5e_dev *mlx5e_dev; struct net_device *netdev; pm_message_t state = {}; struct mlx5e_priv *priv; int err; mlx5e_dev = mlx5e_create_devlink(&adev->dev, mdev); if (IS_ERR(mlx5e_dev)) return PTR_ERR(mlx5e_dev); auxiliary_set_drvdata(adev, mlx5e_dev); err = mlx5e_devlink_port_register(mlx5e_dev, mdev); if (err) { mlx5_core_err(mdev, "mlx5e_devlink_port_register failed, %d\n", err); goto err_devlink_unregister; } netdev = mlx5e_create_netdev(mdev, profile); if (!netdev) { mlx5_core_err(mdev, "mlx5e_create_netdev failed\n"); err = -ENOMEM; goto err_devlink_port_unregister; } SET_NETDEV_DEVLINK_PORT(netdev, &mlx5e_dev->dl_port); mlx5e_build_nic_netdev(netdev); priv = netdev_priv(netdev); mlx5e_dev->priv = priv; priv->profile = profile; priv->ppriv = NULL; err = profile->init(mdev, netdev); if (err) { mlx5_core_err(mdev, "mlx5e_nic_profile init failed, %d\n", err); goto err_destroy_netdev; } err = mlx5e_resume(adev); if (err) { mlx5_core_err(mdev, "mlx5e_resume failed, %d\n", err); goto err_profile_cleanup; } err = register_netdev(netdev); if (err) { mlx5_core_err(mdev, "register_netdev failed, %d\n", err); goto err_resume; } mlx5e_dcbnl_init_app(priv); mlx5_core_uplink_netdev_set(mdev, netdev); mlx5e_params_print_info(mdev, &priv->channels.params); return 0; err_resume: mlx5e_suspend(adev, state); err_profile_cleanup: profile->cleanup(priv); err_destroy_netdev: mlx5e_destroy_netdev(priv); err_devlink_port_unregister: mlx5e_devlink_port_unregister(mlx5e_dev); err_devlink_unregister: mlx5e_destroy_devlink(mlx5e_dev); return err; } static void mlx5e_remove(struct auxiliary_device *adev) { struct mlx5e_dev *mlx5e_dev = auxiliary_get_drvdata(adev); struct mlx5e_priv *priv = mlx5e_dev->priv; pm_message_t state = {}; mlx5_core_uplink_netdev_set(priv->mdev, NULL); mlx5e_dcbnl_delete_app(priv); unregister_netdev(priv->netdev); mlx5e_suspend(adev, state); priv->profile->cleanup(priv); mlx5e_destroy_netdev(priv); mlx5e_devlink_port_unregister(mlx5e_dev); mlx5e_destroy_devlink(mlx5e_dev); } static const struct auxiliary_device_id mlx5e_id_table[] = { { .name = MLX5_ADEV_NAME ".eth", }, {}, }; MODULE_DEVICE_TABLE(auxiliary, mlx5e_id_table); static struct auxiliary_driver mlx5e_driver = { .name = "eth", .probe = mlx5e_probe, .remove = mlx5e_remove, .suspend = mlx5e_suspend, .resume = mlx5e_resume, .id_table = mlx5e_id_table, }; int mlx5e_init(void) { int ret; mlx5e_build_ptys2ethtool_map(); ret = auxiliary_driver_register(&mlx5e_driver); if (ret) return ret; ret = mlx5e_rep_init(); if (ret) auxiliary_driver_unregister(&mlx5e_driver); return ret; } void mlx5e_cleanup(void) { mlx5e_rep_cleanup(); auxiliary_driver_unregister(&mlx5e_driver); }
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