[net-next,13/15] mlxsw: spectrum_router: Introduce fib_entry priv for low-level ops

Message ID	20201110094900.1920158-14-idosch@idosch.org (mailing list archive)
State	Accepted
Delegated to:	Netdev Maintainers
Headers	show Return-Path: <netdev-owner@kernel.org> From: Ido Schimmel <idosch@idosch.org> To: netdev@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, jiri@nvidia.com, mlxsw@nvidia.com, Ido Schimmel <idosch@nvidia.com> Subject: [PATCH net-next 13/15] mlxsw: spectrum_router: Introduce fib_entry priv for low-level ops Date: Tue, 10 Nov 2020 11:48:58 +0200 Message-Id: <20201110094900.1920158-14-idosch@idosch.org> In-Reply-To: <20201110094900.1920158-1-idosch@idosch.org> References: <20201110094900.1920158-1-idosch@idosch.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	mlxsw: spectrum: Prepare for XM implementation - prefix insertion and removal \| expand [net-next,00/15] mlxsw: spectrum: Prepare for XM implementation - prefix insertion and removal [net-next,01/15] mlxsw: spectrum_router: Pass non-register proto enum to __mlxsw_sp_router_set_abor… [net-next,02/15] mlxsw: spectrum_router: Use RALUE-independent op arg [net-next,03/15] mlxsw: spectrum_router: Introduce FIB event queue instead of separate works [net-next,04/15] mlxsw: spectrum: Propagate context from work handler containing RALUE payload [net-next,05/15] mlxsw: spectrum_router: Push out RALUE pack into separate helper [net-next,06/15] mlxsw: spectrum: Export RALUE pack helper and use it from IPIP [net-next,07/15] mlxsw: spectrum_router: Pass destination IP as a pointer to mlxsw_reg_ralue_pack4() [net-next,08/15] mlxsw: reg: Allow to pass NULL pointer to mlxsw_reg_ralue_pack4/6() [net-next,09/15] mlxsw: spectrum_router: Use RALUE pack helper from abort function [net-next,10/15] mlxsw: spectrum: Push RALUE packing and writing into low-level router ops [net-next,11/15] mlxsw: spectrum_router: Prepare work context for possible bulking [net-next,12/15] mlxsw: spectrum_router: Have FIB entry op context allocated for the instance [net-next,13/15] mlxsw: spectrum_router: Introduce fib_entry priv for low-level ops [net-next,14/15] mlxsw: spectrum_router: Track FIB entry committed state and skip uncommitted on de… [net-next,15/15] mlxsw: spectrum_router: Introduce FIB entry update op

Context	Check	Description
netdev/cover_letter	success	Link
netdev/fixes_present	success	Link
netdev/patch_count	success	Link
netdev/tree_selection	success	Clearly marked for net-next
netdev/subject_prefix	success	Link
netdev/source_inline	success	Was 0 now: 0
netdev/verify_signedoff	success	Link
netdev/module_param	success	Was 0 now: 0
netdev/build_32bit	success	Errors and warnings before: 0 this patch: 0
netdev/kdoc	success	Errors and warnings before: 0 this patch: 0
netdev/verify_fixes	success	Link
netdev/checkpatch	warning	CHECK: No space is necessary after a cast WARNING: line length of 81 exceeds 80 columns WARNING: line length of 83 exceeds 80 columns WARNING: line length of 85 exceeds 80 columns WARNING: line length of 86 exceeds 80 columns WARNING: line length of 87 exceeds 80 columns WARNING: line length of 88 exceeds 80 columns WARNING: line length of 89 exceeds 80 columns WARNING: line length of 91 exceeds 80 columns WARNING: line length of 92 exceeds 80 columns WARNING: line length of 94 exceeds 80 columns
netdev/build_allmodconfig_warn	success	Errors and warnings before: 0 this patch: 0
netdev/header_inline	success	Link
netdev/stable	success	Stable not CCed

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c index 3cea9ee5910d..ab2e0eb26c1a 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c @@ -186,19 +186,21 @@ mlxsw_sp_ipip_fib_entry_op_gre4_do(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fib_entry_op_ctx *op_ctx, u32 dip, u8 prefix_len, u16 ul_vr_id, enum mlxsw_sp_fib_entry_op op, - u32 tunnel_index) + u32 tunnel_index, + struct mlxsw_sp_fib_entry_priv *priv) { ll_ops->fib_entry_pack(op_ctx, MLXSW_SP_L3_PROTO_IPV4, op, ul_vr_id, - prefix_len, (unsigned char *) &dip); + prefix_len, (unsigned char *) &dip, priv); ll_ops->fib_entry_act_ip2me_tun_pack(op_ctx, tunnel_index); - return ll_ops->fib_entry_commit(mlxsw_sp, op_ctx); + return mlxsw_sp_fib_entry_commit(mlxsw_sp, op_ctx, ll_ops); } static int mlxsw_sp_ipip_fib_entry_op_gre4(struct mlxsw_sp *mlxsw_sp, const struct mlxsw_sp_router_ll_ops *ll_ops, struct mlxsw_sp_fib_entry_op_ctx *op_ctx, struct mlxsw_sp_ipip_entry *ipip_entry, - enum mlxsw_sp_fib_entry_op op, u32 tunnel_index) + enum mlxsw_sp_fib_entry_op op, u32 tunnel_index, + struct mlxsw_sp_fib_entry_priv *priv) { u16 ul_vr_id = mlxsw_sp_ipip_lb_ul_vr_id(ipip_entry->ol_lb); __be32 dip; @@ -212,7 +214,7 @@ static int mlxsw_sp_ipip_fib_entry_op_gre4(struct mlxsw_sp *mlxsw_sp, dip = mlxsw_sp_ipip_netdev_saddr(MLXSW_SP_L3_PROTO_IPV4, ipip_entry->ol_dev).addr4; return mlxsw_sp_ipip_fib_entry_op_gre4_do(mlxsw_sp, ll_ops, op_ctx, be32_to_cpu(dip), - 32, ul_vr_id, op, tunnel_index); + 32, ul_vr_id, op, tunnel_index, priv); } static bool mlxsw_sp_ipip_tunnel_complete(enum mlxsw_sp_l3proto proto, diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.h index fe9a94362e61..00448cbac639 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.h @@ -56,7 +56,8 @@ struct mlxsw_sp_ipip_ops { struct mlxsw_sp_fib_entry_op_ctx *op_ctx, struct mlxsw_sp_ipip_entry *ipip_entry, enum mlxsw_sp_fib_entry_op op, - u32 tunnel_index); + u32 tunnel_index, + struct mlxsw_sp_fib_entry_priv *priv); int (*ol_netdev_change)(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_ipip_entry *ipip_entry, diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index 43a4b6a34940..9d3ead1ef561 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -368,12 +368,65 @@ struct mlxsw_sp_fib_entry_decap { u32 tunnel_index; }; +static struct mlxsw_sp_fib_entry_priv * +mlxsw_sp_fib_entry_priv_create(const struct mlxsw_sp_router_ll_ops *ll_ops) +{ + struct mlxsw_sp_fib_entry_priv *priv; + + if (!ll_ops->fib_entry_priv_size) + /* No need to have priv */ + return NULL; + + priv = kzalloc(sizeof(*priv) + ll_ops->fib_entry_priv_size, GFP_KERNEL); + if (!priv) + return ERR_PTR(-ENOMEM); + refcount_set(&priv->refcnt, 1); + return priv; +} + +static void +mlxsw_sp_fib_entry_priv_destroy(struct mlxsw_sp_fib_entry_priv *priv) +{ + kfree(priv); +} + +static void mlxsw_sp_fib_entry_priv_hold(struct mlxsw_sp_fib_entry_priv *priv) +{ + refcount_inc(&priv->refcnt); +} + +static void mlxsw_sp_fib_entry_priv_put(struct mlxsw_sp_fib_entry_priv *priv) +{ + if (!priv || !refcount_dec_and_test(&priv->refcnt)) + return; + mlxsw_sp_fib_entry_priv_destroy(priv); +} + +static void mlxsw_sp_fib_entry_op_ctx_priv_hold(struct mlxsw_sp_fib_entry_op_ctx *op_ctx, + struct mlxsw_sp_fib_entry_priv *priv) +{ + if (!priv) + return; + mlxsw_sp_fib_entry_priv_hold(priv); + list_add(&priv->list, &op_ctx->fib_entry_priv_list); +} + +static void mlxsw_sp_fib_entry_op_ctx_priv_put_all(struct mlxsw_sp_fib_entry_op_ctx *op_ctx) +{ + struct mlxsw_sp_fib_entry_priv *priv, *tmp; + + list_for_each_entry_safe(priv, tmp, &op_ctx->fib_entry_priv_list, list) + mlxsw_sp_fib_entry_priv_put(priv); + INIT_LIST_HEAD(&op_ctx->fib_entry_priv_list); +} + struct mlxsw_sp_fib_entry { struct mlxsw_sp_fib_node *fib_node; enum mlxsw_sp_fib_entry_type type; struct list_head nexthop_group_node; struct mlxsw_sp_nexthop_group *nh_group; struct mlxsw_sp_fib_entry_decap decap; /* Valid for decap entries. */ + struct mlxsw_sp_fib_entry_priv *priv; }; struct mlxsw_sp_fib4_entry { @@ -4316,7 +4369,8 @@ mlxsw_sp_router_ll_basic_fib_entry_pack(struct mlxsw_sp_fib_entry_op_ctx *op_ctx enum mlxsw_sp_l3proto proto, enum mlxsw_sp_fib_entry_op op, u16 virtual_router, u8 prefix_len, - unsigned char *addr) + unsigned char *addr, + struct mlxsw_sp_fib_entry_priv *priv) { struct mlxsw_sp_fib_entry_op_ctx_basic *op_ctx_basic = (void *) op_ctx->ll_priv; enum mlxsw_reg_ralxx_protocol ralxx_proto; @@ -4390,7 +4444,8 @@ mlxsw_sp_router_ll_basic_fib_entry_act_ip2me_tun_pack(struct mlxsw_sp_fib_entry_ static int mlxsw_sp_router_ll_basic_fib_entry_commit(struct mlxsw_sp *mlxsw_sp, - struct mlxsw_sp_fib_entry_op_ctx *op_ctx) + struct mlxsw_sp_fib_entry_op_ctx *op_ctx, + bool *postponed_for_bulk) { struct mlxsw_sp_fib_entry_op_ctx_basic *op_ctx_basic = (void *) op_ctx->ll_priv; @@ -4404,9 +4459,24 @@ static void mlxsw_sp_fib_entry_pack(struct mlxsw_sp_fib_entry_op_ctx *op_ctx, { struct mlxsw_sp_fib *fib = fib_entry->fib_node->fib; + mlxsw_sp_fib_entry_op_ctx_priv_hold(op_ctx, fib_entry->priv); fib->ll_ops->fib_entry_pack(op_ctx, fib->proto, op, fib->vr->id, fib_entry->fib_node->key.prefix_len, - fib_entry->fib_node->key.addr); + fib_entry->fib_node->key.addr, + fib_entry->priv); +} + +int mlxsw_sp_fib_entry_commit(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_fib_entry_op_ctx *op_ctx, + const struct mlxsw_sp_router_ll_ops *ll_ops) +{ + bool postponed_for_bulk = false; + int err; + + err = ll_ops->fib_entry_commit(mlxsw_sp, op_ctx, &postponed_for_bulk); + if (!postponed_for_bulk) + mlxsw_sp_fib_entry_op_ctx_priv_put_all(op_ctx); + return err; } static int mlxsw_sp_adj_discard_write(struct mlxsw_sp *mlxsw_sp, u16 rif_index) @@ -4480,7 +4550,7 @@ static int mlxsw_sp_fib_entry_op_remote(struct mlxsw_sp *mlxsw_sp, mlxsw_sp_fib_entry_pack(op_ctx, fib_entry, op); ll_ops->fib_entry_act_remote_pack(op_ctx, trap_action, trap_id, adjacency_index, ecmp_size); - return ll_ops->fib_entry_commit(mlxsw_sp, op_ctx); + return mlxsw_sp_fib_entry_commit(mlxsw_sp, op_ctx, ll_ops); } static int mlxsw_sp_fib_entry_op_local(struct mlxsw_sp *mlxsw_sp, @@ -4504,7 +4574,7 @@ static int mlxsw_sp_fib_entry_op_local(struct mlxsw_sp *mlxsw_sp, mlxsw_sp_fib_entry_pack(op_ctx, fib_entry, op); ll_ops->fib_entry_act_local_pack(op_ctx, trap_action, trap_id, rif_index); - return ll_ops->fib_entry_commit(mlxsw_sp, op_ctx); + return mlxsw_sp_fib_entry_commit(mlxsw_sp, op_ctx, ll_ops); } static int mlxsw_sp_fib_entry_op_trap(struct mlxsw_sp *mlxsw_sp, @@ -4516,7 +4586,7 @@ static int mlxsw_sp_fib_entry_op_trap(struct mlxsw_sp *mlxsw_sp, mlxsw_sp_fib_entry_pack(op_ctx, fib_entry, op); ll_ops->fib_entry_act_ip2me_pack(op_ctx); - return ll_ops->fib_entry_commit(mlxsw_sp, op_ctx); + return mlxsw_sp_fib_entry_commit(mlxsw_sp, op_ctx, ll_ops); } static int mlxsw_sp_fib_entry_op_blackhole(struct mlxsw_sp *mlxsw_sp, @@ -4530,7 +4600,7 @@ static int mlxsw_sp_fib_entry_op_blackhole(struct mlxsw_sp *mlxsw_sp, trap_action = MLXSW_REG_RALUE_TRAP_ACTION_DISCARD_ERROR; mlxsw_sp_fib_entry_pack(op_ctx, fib_entry, op); ll_ops->fib_entry_act_local_pack(op_ctx, trap_action, 0, 0); - return ll_ops->fib_entry_commit(mlxsw_sp, op_ctx); + return mlxsw_sp_fib_entry_commit(mlxsw_sp, op_ctx, ll_ops); } static int @@ -4548,7 +4618,7 @@ mlxsw_sp_fib_entry_op_unreachable(struct mlxsw_sp *mlxsw_sp, mlxsw_sp_fib_entry_pack(op_ctx, fib_entry, op); ll_ops->fib_entry_act_local_pack(op_ctx, trap_action, trap_id, 0); - return ll_ops->fib_entry_commit(mlxsw_sp, op_ctx); + return mlxsw_sp_fib_entry_commit(mlxsw_sp, op_ctx, ll_ops); } static int @@ -4566,7 +4636,7 @@ mlxsw_sp_fib_entry_op_ipip_decap(struct mlxsw_sp *mlxsw_sp, ipip_ops = mlxsw_sp->router->ipip_ops_arr[ipip_entry->ipipt]; return ipip_ops->fib_entry_op(mlxsw_sp, ll_ops, op_ctx, ipip_entry, op, - fib_entry->decap.tunnel_index); + fib_entry->decap.tunnel_index, fib_entry->priv); } static int mlxsw_sp_fib_entry_op_nve_decap(struct mlxsw_sp *mlxsw_sp, @@ -4579,7 +4649,7 @@ static int mlxsw_sp_fib_entry_op_nve_decap(struct mlxsw_sp *mlxsw_sp, mlxsw_sp_fib_entry_pack(op_ctx, fib_entry, op); ll_ops->fib_entry_act_ip2me_tun_pack(op_ctx, fib_entry->decap.tunnel_index); - return ll_ops->fib_entry_commit(mlxsw_sp, op_ctx); + return mlxsw_sp_fib_entry_commit(mlxsw_sp, op_ctx, ll_ops); } static int __mlxsw_sp_fib_entry_op(struct mlxsw_sp *mlxsw_sp, @@ -4731,6 +4801,12 @@ mlxsw_sp_fib4_entry_create(struct mlxsw_sp *mlxsw_sp, return ERR_PTR(-ENOMEM); fib_entry = &fib4_entry->common; + fib_entry->priv = mlxsw_sp_fib_entry_priv_create(fib_node->fib->ll_ops); + if (IS_ERR(fib_entry->priv)) { + err = PTR_ERR(fib_entry->priv); + goto err_fib_entry_priv_create; + } + err = mlxsw_sp_fib4_entry_type_set(mlxsw_sp, fen_info, fib_entry); if (err) goto err_fib4_entry_type_set; @@ -4751,6 +4827,8 @@ mlxsw_sp_fib4_entry_create(struct mlxsw_sp *mlxsw_sp, err_nexthop4_group_get: mlxsw_sp_fib4_entry_type_unset(mlxsw_sp, fib_entry); err_fib4_entry_type_set: + mlxsw_sp_fib_entry_priv_put(fib_entry->priv); +err_fib_entry_priv_create: kfree(fib4_entry); return ERR_PTR(err); } @@ -4760,6 +4838,7 @@ static void mlxsw_sp_fib4_entry_destroy(struct mlxsw_sp *mlxsw_sp, { mlxsw_sp_nexthop4_group_put(mlxsw_sp, &fib4_entry->common); mlxsw_sp_fib4_entry_type_unset(mlxsw_sp, &fib4_entry->common); + mlxsw_sp_fib_entry_priv_put(fib4_entry->common.priv); kfree(fib4_entry); } @@ -5017,14 +5096,16 @@ static int mlxsw_sp_fib_node_entry_link(struct mlxsw_sp *mlxsw_sp, return err; } -static void __mlxsw_sp_fib_node_entry_unlink(struct mlxsw_sp *mlxsw_sp, - struct mlxsw_sp_fib_entry_op_ctx *op_ctx, - struct mlxsw_sp_fib_entry *fib_entry) +static int __mlxsw_sp_fib_node_entry_unlink(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_fib_entry_op_ctx *op_ctx, + struct mlxsw_sp_fib_entry *fib_entry) { struct mlxsw_sp_fib_node *fib_node = fib_entry->fib_node; + int err; - mlxsw_sp_fib_entry_del(mlxsw_sp, op_ctx, fib_entry); + err = mlxsw_sp_fib_entry_del(mlxsw_sp, op_ctx, fib_entry); fib_node->fib_entry = NULL; + return err; } static void mlxsw_sp_fib_node_entry_unlink(struct mlxsw_sp *mlxsw_sp, @@ -5114,24 +5195,26 @@ mlxsw_sp_router_fib4_replace(struct mlxsw_sp *mlxsw_sp, return err; } -static void mlxsw_sp_router_fib4_del(struct mlxsw_sp *mlxsw_sp, - struct mlxsw_sp_fib_entry_op_ctx *op_ctx, - struct fib_entry_notifier_info *fen_info) +static int mlxsw_sp_router_fib4_del(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_fib_entry_op_ctx *op_ctx, + struct fib_entry_notifier_info *fen_info) { struct mlxsw_sp_fib4_entry *fib4_entry; struct mlxsw_sp_fib_node *fib_node; + int err; if (mlxsw_sp->router->aborted) - return; + return 0; fib4_entry = mlxsw_sp_fib4_entry_lookup(mlxsw_sp, fen_info); if (!fib4_entry) - return; + return 0; fib_node = fib4_entry->common.fib_node; - __mlxsw_sp_fib_node_entry_unlink(mlxsw_sp, op_ctx, &fib4_entry->common); + err = __mlxsw_sp_fib_node_entry_unlink(mlxsw_sp, op_ctx, &fib4_entry->common); mlxsw_sp_fib4_entry_destroy(mlxsw_sp, fib4_entry); mlxsw_sp_fib_node_put(mlxsw_sp, fib_node); + return err; } static bool mlxsw_sp_fib6_rt_should_ignore(const struct fib6_info *rt) @@ -5546,6 +5629,12 @@ mlxsw_sp_fib6_entry_create(struct mlxsw_sp *mlxsw_sp, return ERR_PTR(-ENOMEM); fib_entry = &fib6_entry->common; + fib_entry->priv = mlxsw_sp_fib_entry_priv_create(fib_node->fib->ll_ops); + if (IS_ERR(fib_entry->priv)) { + err = PTR_ERR(fib_entry->priv); + goto err_fib_entry_priv_create; + } + INIT_LIST_HEAD(&fib6_entry->rt6_list); for (i = 0; i < nrt6; i++) { @@ -5578,6 +5667,8 @@ mlxsw_sp_fib6_entry_create(struct mlxsw_sp *mlxsw_sp, list_del(&mlxsw_sp_rt6->list); mlxsw_sp_rt6_destroy(mlxsw_sp_rt6); } + mlxsw_sp_fib_entry_priv_put(fib_entry->priv); +err_fib_entry_priv_create: kfree(fib6_entry); return ERR_PTR(err); } @@ -5588,6 +5679,7 @@ static void mlxsw_sp_fib6_entry_destroy(struct mlxsw_sp *mlxsw_sp, mlxsw_sp_nexthop6_group_put(mlxsw_sp, &fib6_entry->common); mlxsw_sp_fib6_entry_rt_destroy_all(fib6_entry); WARN_ON(fib6_entry->nrt6); + mlxsw_sp_fib_entry_priv_put(fib6_entry->common.priv); kfree(fib6_entry); } @@ -5752,19 +5844,20 @@ static int mlxsw_sp_router_fib6_append(struct mlxsw_sp *mlxsw_sp, return err; } -static void mlxsw_sp_router_fib6_del(struct mlxsw_sp *mlxsw_sp, - struct mlxsw_sp_fib_entry_op_ctx *op_ctx, - struct fib6_info **rt_arr, unsigned int nrt6) +static int mlxsw_sp_router_fib6_del(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_fib_entry_op_ctx *op_ctx, + struct fib6_info **rt_arr, unsigned int nrt6) { struct mlxsw_sp_fib6_entry *fib6_entry; struct mlxsw_sp_fib_node *fib_node; struct fib6_info *rt = rt_arr[0]; + int err; if (mlxsw_sp->router->aborted) - return; + return 0; if (mlxsw_sp_fib6_rt_should_ignore(rt)) - return; + return 0; /* Multipath routes are first added to the FIB trie and only then * notified. If we vetoed the addition, we will get a delete @@ -5773,21 +5866,22 @@ static void mlxsw_sp_router_fib6_del(struct mlxsw_sp *mlxsw_sp, */ fib6_entry = mlxsw_sp_fib6_entry_lookup(mlxsw_sp, rt); if (!fib6_entry) - return; + return 0; /* If not all the nexthops are deleted, then only reduce the nexthop * group. */ if (nrt6 != fib6_entry->nrt6) { mlxsw_sp_fib6_entry_nexthop_del(mlxsw_sp, op_ctx, fib6_entry, rt_arr, nrt6); - return; + return 0; } fib_node = fib6_entry->common.fib_node; - __mlxsw_sp_fib_node_entry_unlink(mlxsw_sp, op_ctx, &fib6_entry->common); + err = __mlxsw_sp_fib_node_entry_unlink(mlxsw_sp, op_ctx, &fib6_entry->common); mlxsw_sp_fib6_entry_destroy(mlxsw_sp, fib6_entry); mlxsw_sp_fib_node_put(mlxsw_sp, fib_node); + return err; } static int __mlxsw_sp_router_set_abort_trap(struct mlxsw_sp *mlxsw_sp, @@ -5797,6 +5891,7 @@ static int __mlxsw_sp_router_set_abort_trap(struct mlxsw_sp *mlxsw_sp, const struct mlxsw_sp_router_ll_ops *ll_ops = mlxsw_sp->router->proto_ll_ops[proto]; enum mlxsw_reg_ralxx_protocol ralxx_proto = (enum mlxsw_reg_ralxx_protocol) proto; + struct mlxsw_sp_fib_entry_priv *priv; char xralta_pl[MLXSW_REG_XRALTA_LEN]; char xralst_pl[MLXSW_REG_XRALST_LEN]; int i, err; @@ -5822,10 +5917,15 @@ static int __mlxsw_sp_router_set_abort_trap(struct mlxsw_sp *mlxsw_sp, if (err) return err; + priv = mlxsw_sp_fib_entry_priv_create(ll_ops); + if (IS_ERR(priv)) + return PTR_ERR(priv); + ll_ops->fib_entry_pack(op_ctx, proto, MLXSW_SP_FIB_ENTRY_OP_WRITE, - vr->id, 0, NULL); + vr->id, 0, NULL, priv); ll_ops->fib_entry_act_ip2me_pack(op_ctx); - err = ll_ops->fib_entry_commit(mlxsw_sp, op_ctx); + err = ll_ops->fib_entry_commit(mlxsw_sp, op_ctx, NULL); + mlxsw_sp_fib_entry_priv_put(priv); if (err) return err; } @@ -6117,12 +6217,16 @@ static void mlxsw_sp_router_fib4_event_process(struct mlxsw_sp *mlxsw_sp, switch (fib_event->event) { case FIB_EVENT_ENTRY_REPLACE: err = mlxsw_sp_router_fib4_replace(mlxsw_sp, op_ctx, &fib_event->fen_info); - if (err) + if (err) { + mlxsw_sp_fib_entry_op_ctx_priv_put_all(op_ctx); mlxsw_sp_router_fib_abort(mlxsw_sp); + } fib_info_put(fib_event->fen_info.fi); break; case FIB_EVENT_ENTRY_DEL: - mlxsw_sp_router_fib4_del(mlxsw_sp, op_ctx, &fib_event->fen_info); + err = mlxsw_sp_router_fib4_del(mlxsw_sp, op_ctx, &fib_event->fen_info); + if (err) + mlxsw_sp_fib_entry_op_ctx_priv_put_all(op_ctx); fib_info_put(fib_event->fen_info.fi); break; case FIB_EVENT_NH_ADD: @@ -6145,20 +6249,26 @@ static void mlxsw_sp_router_fib6_event_process(struct mlxsw_sp *mlxsw_sp, case FIB_EVENT_ENTRY_REPLACE: err = mlxsw_sp_router_fib6_replace(mlxsw_sp, op_ctx, fib_event->fib6_event.rt_arr, fib_event->fib6_event.nrt6); - if (err) + if (err) { + mlxsw_sp_fib_entry_op_ctx_priv_put_all(op_ctx); mlxsw_sp_router_fib_abort(mlxsw_sp); + } mlxsw_sp_router_fib6_event_fini(&fib_event->fib6_event); break; case FIB_EVENT_ENTRY_APPEND: err = mlxsw_sp_router_fib6_append(mlxsw_sp, op_ctx, fib_event->fib6_event.rt_arr, fib_event->fib6_event.nrt6); - if (err) + if (err) { + mlxsw_sp_fib_entry_op_ctx_priv_put_all(op_ctx); mlxsw_sp_router_fib_abort(mlxsw_sp); + } mlxsw_sp_router_fib6_event_fini(&fib_event->fib6_event); break; case FIB_EVENT_ENTRY_DEL: - mlxsw_sp_router_fib6_del(mlxsw_sp, op_ctx, fib_event->fib6_event.rt_arr, - fib_event->fib6_event.nrt6); + err = mlxsw_sp_router_fib6_del(mlxsw_sp, op_ctx, fib_event->fib6_event.rt_arr, + fib_event->fib6_event.nrt6); + if (err) + mlxsw_sp_fib_entry_op_ctx_priv_put_all(op_ctx); mlxsw_sp_router_fib6_event_fini(&fib_event->fib6_event); break; } @@ -6268,6 +6378,7 @@ static void mlxsw_sp_router_fib_event_work(struct work_struct *work) kfree(fib_event); cond_resched(); } + WARN_ON_ONCE(!list_empty(&router->ll_op_ctx->fib_entry_priv_list)); mutex_unlock(&router->lock); } @@ -8276,11 +8387,13 @@ static int mlxsw_sp_router_ll_op_ctx_init(struct mlxsw_sp_router *router) GFP_KERNEL); if (!router->ll_op_ctx) return -ENOMEM; + INIT_LIST_HEAD(&router->ll_op_ctx->fib_entry_priv_list); return 0; } static void mlxsw_sp_router_ll_op_ctx_fini(struct mlxsw_sp_router *router) { + WARN_ON(!list_empty(&router->ll_op_ctx->fib_entry_priv_list)); kfree(router->ll_op_ctx); } diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h index 9db1e3da0e0c..4dacbeee3142 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h @@ -23,13 +23,16 @@ struct mlxsw_sp_fib_entry_op_ctx { initialized:1; /* Bit that the low-level op sets in case * the context priv is initialized. */ + struct list_head fib_entry_priv_list; unsigned long ll_priv[]; }; static inline void mlxsw_sp_fib_entry_op_ctx_clear(struct mlxsw_sp_fib_entry_op_ctx *op_ctx) { + WARN_ON_ONCE(!list_empty(&op_ctx->fib_entry_priv_list)); memset(op_ctx, 0, sizeof(*op_ctx)); + INIT_LIST_HEAD(&op_ctx->fib_entry_priv_list); } struct mlxsw_sp_router { @@ -73,6 +76,12 @@ struct mlxsw_sp_router { struct mlxsw_sp_fib_entry_op_ctx *ll_op_ctx; }; +struct mlxsw_sp_fib_entry_priv { + refcount_t refcnt; + struct list_head list; /* Member in op_ctx->fib_entry_priv_list */ + unsigned long priv[]; +}; + enum mlxsw_sp_fib_entry_op { MLXSW_SP_FIB_ENTRY_OP_WRITE, MLXSW_SP_FIB_ENTRY_OP_DELETE, @@ -86,9 +95,11 @@ struct mlxsw_sp_router_ll_ops { int (*ralst_write)(struct mlxsw_sp *mlxsw_sp, char *xralst_pl); int (*raltb_write)(struct mlxsw_sp *mlxsw_sp, char *xraltb_pl); size_t fib_entry_op_ctx_size; + size_t fib_entry_priv_size; void (*fib_entry_pack)(struct mlxsw_sp_fib_entry_op_ctx *op_ctx, enum mlxsw_sp_l3proto proto, enum mlxsw_sp_fib_entry_op op, - u16 virtual_router, u8 prefix_len, unsigned char *addr); + u16 virtual_router, u8 prefix_len, unsigned char *addr, + struct mlxsw_sp_fib_entry_priv *priv); void (*fib_entry_act_remote_pack)(struct mlxsw_sp_fib_entry_op_ctx *op_ctx, enum mlxsw_reg_ralue_trap_action trap_action, u16 trap_id, u32 adjacency_index, u16 ecmp_size); @@ -99,9 +110,14 @@ struct mlxsw_sp_router_ll_ops { void (*fib_entry_act_ip2me_tun_pack)(struct mlxsw_sp_fib_entry_op_ctx *op_ctx, u32 tunnel_ptr); int (*fib_entry_commit)(struct mlxsw_sp *mlxsw_sp, - struct mlxsw_sp_fib_entry_op_ctx *op_ctx); + struct mlxsw_sp_fib_entry_op_ctx *op_ctx, + bool *postponed_for_bulk); }; +int mlxsw_sp_fib_entry_commit(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_fib_entry_op_ctx *op_ctx, + const struct mlxsw_sp_router_ll_ops *ll_ops); + struct mlxsw_sp_rif_ipip_lb; struct mlxsw_sp_rif_ipip_lb_config { enum mlxsw_reg_ritr_loopback_ipip_type lb_ipipt;

[net-next,13/15] mlxsw: spectrum_router: Introduce fib_entry priv for low-level ops

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