From 14c129e30152f7d74c8b25ec06ae742f4291e166 Mon Sep 17 00:00:00 2001 From: Maor Gottlieb Date: Mon, 4 May 2020 08:30:09 +0300 Subject: {IB/net}/mlx5: Simplify don't trap code The fs_core already supports creation of rules with multiple actions/destinations. Refactor fs_core to handle the case when don't trap rule is created with destination. Adapt the calling code in the driver. Signed-off-by: Maor Gottlieb Reviewed-by: Mark Zhang Reviewed-by: Mark Bloch Signed-off-by: Leon Romanovsky --- drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 79 +++++++++++++---------- 1 file changed, 46 insertions(+), 33 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c index d5defe09339a..705f433e2590 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c @@ -254,7 +254,7 @@ static void del_sw_flow_group(struct fs_node *node); static void del_sw_fte(struct fs_node *node); static void del_sw_prio(struct fs_node *node); static void del_sw_ns(struct fs_node *node); -/* Delete rule (destination) is special case that +/* Delete rule (destination) is special case that * requires to lock the FTE for all the deletion process. */ static void del_sw_hw_rule(struct fs_node *node); @@ -1899,48 +1899,61 @@ mlx5_add_flow_rules(struct mlx5_flow_table *ft, { struct mlx5_flow_root_namespace *root = find_root(&ft->node); static const struct mlx5_flow_spec zero_spec = {}; - struct mlx5_flow_destination gen_dest = {}; + struct mlx5_flow_destination *gen_dest = NULL; struct mlx5_flow_table *next_ft = NULL; struct mlx5_flow_handle *handle = NULL; u32 sw_action = flow_act->action; struct fs_prio *prio; + int i; if (!spec) spec = &zero_spec; - fs_get_obj(prio, ft->node.parent); - if (flow_act->action == MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO) { - if (!fwd_next_prio_supported(ft)) - return ERR_PTR(-EOPNOTSUPP); - if (num_dest) - return ERR_PTR(-EINVAL); - mutex_lock(&root->chain_lock); - next_ft = find_next_chained_ft(prio); - if (next_ft) { - gen_dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; - gen_dest.ft = next_ft; - dest = &gen_dest; - num_dest = 1; - flow_act->action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; - } else { - mutex_unlock(&root->chain_lock); - return ERR_PTR(-EOPNOTSUPP); - } - } + if (!(sw_action & MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO)) + return _mlx5_add_flow_rules(ft, spec, flow_act, dest, num_dest); - handle = _mlx5_add_flow_rules(ft, spec, flow_act, dest, num_dest); + if (!fwd_next_prio_supported(ft)) + return ERR_PTR(-EOPNOTSUPP); - if (sw_action == MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO) { - if (!IS_ERR_OR_NULL(handle) && - (list_empty(&handle->rule[0]->next_ft))) { - mutex_lock(&next_ft->lock); - list_add(&handle->rule[0]->next_ft, - &next_ft->fwd_rules); - mutex_unlock(&next_ft->lock); - handle->rule[0]->sw_action = MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO; - } - mutex_unlock(&root->chain_lock); - } + mutex_lock(&root->chain_lock); + fs_get_obj(prio, ft->node.parent); + next_ft = find_next_chained_ft(prio); + if (!next_ft) { + handle = ERR_PTR(-EOPNOTSUPP); + goto unlock; + } + + gen_dest = kcalloc(num_dest + 1, sizeof(*dest), + GFP_KERNEL); + if (!gen_dest) { + handle = ERR_PTR(-ENOMEM); + goto unlock; + } + for (i = 0; i < num_dest; i++) + gen_dest[i] = dest[i]; + gen_dest[i].type = + MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; + gen_dest[i].ft = next_ft; + dest = gen_dest; + num_dest++; + flow_act->action &= + ~MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO; + flow_act->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; + handle = _mlx5_add_flow_rules(ft, spec, flow_act, dest, num_dest); + if (IS_ERR(handle)) + goto unlock; + + if (list_empty(&handle->rule[num_dest - 1]->next_ft)) { + mutex_lock(&next_ft->lock); + list_add(&handle->rule[num_dest - 1]->next_ft, + &next_ft->fwd_rules); + mutex_unlock(&next_ft->lock); + handle->rule[num_dest - 1]->sw_action = + MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO; + } +unlock: + mutex_unlock(&root->chain_lock); + kfree(gen_dest); return handle; } EXPORT_SYMBOL(mlx5_add_flow_rules); -- cgit From 9254f8ed15b6dcc9b04b9ad32863a7518cc5a5b1 Mon Sep 17 00:00:00 2001 From: Maor Gottlieb Date: Mon, 4 May 2020 08:30:10 +0300 Subject: net/mlx5: Add support in forward to namespace Currently, fs_core supports rule of forward the traffic to continue matching in the next priority, now we add support to forward the traffic matching in the next namespace. Signed-off-by: Maor Gottlieb Reviewed-by: Mark Bloch Reviewed-by: Mark Zhang Signed-off-by: Leon Romanovsky --- drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 57 +++++++++++++++++++---- drivers/net/ethernet/mellanox/mlx5/core/fs_core.h | 2 + 2 files changed, 50 insertions(+), 9 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c index 705f433e2590..41aa1fa0c69e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c @@ -384,6 +384,12 @@ static struct fs_prio *find_prio(struct mlx5_flow_namespace *ns, return NULL; } +static bool is_fwd_next_action(u32 action) +{ + return action & (MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO | + MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS); +} + static bool check_valid_spec(const struct mlx5_flow_spec *spec) { int i; @@ -502,7 +508,7 @@ static void del_sw_hw_rule(struct fs_node *node) fs_get_obj(rule, node); fs_get_obj(fte, rule->node.parent); trace_mlx5_fs_del_rule(rule); - if (rule->sw_action == MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO) { + if (is_fwd_next_action(rule->sw_action)) { mutex_lock(&rule->dest_attr.ft->lock); list_del(&rule->next_ft); mutex_unlock(&rule->dest_attr.ft->lock); @@ -826,6 +832,36 @@ static struct mlx5_flow_table *find_prev_chained_ft(struct fs_prio *prio) return find_closest_ft(prio, true); } +static struct fs_prio *find_fwd_ns_prio(struct mlx5_flow_root_namespace *root, + struct mlx5_flow_namespace *ns) +{ + struct mlx5_flow_namespace *root_ns = &root->ns; + struct fs_prio *iter_prio; + struct fs_prio *prio; + + fs_get_obj(prio, ns->node.parent); + list_for_each_entry(iter_prio, &root_ns->node.children, node.list) { + if (iter_prio == prio && + !list_is_last(&prio->node.children, &iter_prio->node.list)) + return list_next_entry(iter_prio, node.list); + } + return NULL; +} + +static struct mlx5_flow_table *find_next_fwd_ft(struct mlx5_flow_table *ft, + struct mlx5_flow_act *flow_act) +{ + struct mlx5_flow_root_namespace *root = find_root(&ft->node); + struct fs_prio *prio; + + if (flow_act->action & MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS) + prio = find_fwd_ns_prio(root, ft->ns); + else + fs_get_obj(prio, ft->node.parent); + + return (prio) ? find_next_chained_ft(prio) : NULL; +} + static int connect_fts_in_prio(struct mlx5_core_dev *dev, struct fs_prio *prio, struct mlx5_flow_table *ft) @@ -976,6 +1012,10 @@ static int connect_fwd_rules(struct mlx5_core_dev *dev, list_splice_init(&old_next_ft->fwd_rules, &new_next_ft->fwd_rules); mutex_unlock(&old_next_ft->lock); list_for_each_entry(iter, &new_next_ft->fwd_rules, next_ft) { + if ((iter->sw_action & MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS) && + iter->ft->ns == new_next_ft->ns) + continue; + err = _mlx5_modify_rule_destination(iter, &dest); if (err) pr_err("mlx5_core: failed to modify rule to point on flow table %d\n", @@ -1077,6 +1117,7 @@ static struct mlx5_flow_table *__mlx5_create_flow_table(struct mlx5_flow_namespa next_ft = unmanaged ? ft_attr->next_ft : find_next_chained_ft(fs_prio); ft->def_miss_action = ns->def_miss_action; + ft->ns = ns; err = root->cmds->create_flow_table(root, ft, log_table_sz, next_ft); if (err) goto free_ft; @@ -1903,21 +1944,19 @@ mlx5_add_flow_rules(struct mlx5_flow_table *ft, struct mlx5_flow_table *next_ft = NULL; struct mlx5_flow_handle *handle = NULL; u32 sw_action = flow_act->action; - struct fs_prio *prio; int i; if (!spec) spec = &zero_spec; - if (!(sw_action & MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO)) + if (!is_fwd_next_action(sw_action)) return _mlx5_add_flow_rules(ft, spec, flow_act, dest, num_dest); if (!fwd_next_prio_supported(ft)) return ERR_PTR(-EOPNOTSUPP); mutex_lock(&root->chain_lock); - fs_get_obj(prio, ft->node.parent); - next_ft = find_next_chained_ft(prio); + next_ft = find_next_fwd_ft(ft, flow_act); if (!next_ft) { handle = ERR_PTR(-EOPNOTSUPP); goto unlock; @@ -1936,8 +1975,8 @@ mlx5_add_flow_rules(struct mlx5_flow_table *ft, gen_dest[i].ft = next_ft; dest = gen_dest; num_dest++; - flow_act->action &= - ~MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO; + flow_act->action &= ~(MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO | + MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS); flow_act->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; handle = _mlx5_add_flow_rules(ft, spec, flow_act, dest, num_dest); if (IS_ERR(handle)) @@ -1948,8 +1987,8 @@ mlx5_add_flow_rules(struct mlx5_flow_table *ft, list_add(&handle->rule[num_dest - 1]->next_ft, &next_ft->fwd_rules); mutex_unlock(&next_ft->lock); - handle->rule[num_dest - 1]->sw_action = - MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO; + handle->rule[num_dest - 1]->sw_action = sw_action; + handle->rule[num_dest - 1]->ft = ft; } unlock: mutex_unlock(&root->chain_lock); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h index 508108c58dae..825b662f809b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h @@ -138,6 +138,7 @@ struct fs_node { struct mlx5_flow_rule { struct fs_node node; + struct mlx5_flow_table *ft; struct mlx5_flow_destination dest_attr; /* next_ft should be accessed under chain_lock and only of * destination type is FWD_NEXT_fT. @@ -175,6 +176,7 @@ struct mlx5_flow_table { u32 flags; struct rhltable fgs_hash; enum mlx5_flow_table_miss_action def_miss_action; + struct mlx5_flow_namespace *ns; }; struct mlx5_ft_underlay_qp { -- cgit From 356d411c26735bcc62718c4c9181014255dc302d Mon Sep 17 00:00:00 2001 From: Raed Salem Date: Fri, 15 May 2020 15:16:52 -0700 Subject: net/mlx5: Cleanup mlx5_ifc_fte_match_set_misc2_bits Remove the "metadata_reg_b" field and all uses of this field in code to match the device specification. As this field is not in use in SW steering it is safe to remove it. Signed-off-by: Raed Salem Reviewed-by: Alex Vesker Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.c | 1 - drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h | 3 +-- 2 files changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.c index c0e3a1e7389d..78c884911ceb 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.c @@ -961,7 +961,6 @@ static void dr_ste_copy_mask_misc2(char *mask, struct mlx5dr_match_misc2 *spec) spec->metadata_reg_c_1 = MLX5_GET(fte_match_set_misc2, mask, metadata_reg_c_1); spec->metadata_reg_c_0 = MLX5_GET(fte_match_set_misc2, mask, metadata_reg_c_0); spec->metadata_reg_a = MLX5_GET(fte_match_set_misc2, mask, metadata_reg_a); - spec->metadata_reg_b = MLX5_GET(fte_match_set_misc2, mask, metadata_reg_b); } static void dr_ste_copy_mask_misc3(char *mask, struct mlx5dr_match_misc3 *spec) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h index 984783238baa..71fa01ce348a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h @@ -554,8 +554,7 @@ struct mlx5dr_match_misc2 { u32 metadata_reg_c_1; /* metadata_reg_c_1 */ u32 metadata_reg_c_0; /* metadata_reg_c_0 */ u32 metadata_reg_a; /* metadata_reg_a */ - u32 metadata_reg_b; /* metadata_reg_b */ - u8 reserved_auto2[8]; + u8 reserved_auto2[12]; }; struct mlx5dr_match_misc3 { -- cgit From 555af0c3fa0b632be73c241cc932129af4b70d27 Mon Sep 17 00:00:00 2001 From: Parav Pandit Date: Fri, 15 May 2020 15:16:53 -0700 Subject: net/mlx5: Move iseg access helper routines close to mlx5_core driver Only mlx5_core driver handles fw initialization check and command interface revision check. Hence move them inside the mlx5_core driver where it is used. This avoid exposing these helpers to all mlx5 drivers. Signed-off-by: Parav Pandit Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 5 +++++ drivers/net/ethernet/mellanox/mlx5/core/main.c | 5 +++++ 2 files changed, 10 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c index 34cba97f7bf4..e6567d5570ba 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c @@ -1890,6 +1890,11 @@ static void free_cmd_page(struct mlx5_core_dev *dev, struct mlx5_cmd *cmd) cmd->alloc_dma); } +static u16 cmdif_rev(struct mlx5_core_dev *dev) +{ + return ioread32be(&dev->iseg->cmdif_rev_fw_sub) >> 16; +} + int mlx5_cmd_init(struct mlx5_core_dev *dev) { int size = sizeof(struct mlx5_cmd_prot_block); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index 061b69ea9cc4..8a375e3ed5c1 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -177,6 +177,11 @@ static struct mlx5_profile profile[] = { #define FW_PRE_INIT_TIMEOUT_MILI 120000 #define FW_INIT_WARN_MESSAGE_INTERVAL 20000 +static int fw_initializing(struct mlx5_core_dev *dev) +{ + return ioread32be(&dev->iseg->initializing) >> 31; +} + static int wait_fw_init(struct mlx5_core_dev *dev, u32 max_wait_mili, u32 warn_time_mili) { -- cgit From ecf814e0e19b5616048391eac359a50c1e9d5174 Mon Sep 17 00:00:00 2001 From: Michael Guralnik Date: Fri, 15 May 2020 15:16:54 -0700 Subject: net/mlx5: Add support for RDMA TX FT headers modifying Support adding header modifying actions to the RDMA TX flow table. Signed-off-by: Michael Guralnik Reviewed-by: Mark Bloch Reviewed-by: Maor Gottlieb Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c index 1a8e826ac86b..465a1076a477 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c @@ -781,6 +781,10 @@ static int mlx5_cmd_modify_header_alloc(struct mlx5_flow_root_namespace *ns, max_actions = MLX5_CAP_ESW_INGRESS_ACL(dev, max_modify_header_actions); table_type = FS_FT_ESW_INGRESS_ACL; break; + case MLX5_FLOW_NAMESPACE_RDMA_TX: + max_actions = MLX5_CAP_FLOWTABLE_RDMA_TX(dev, max_modify_header_actions); + table_type = FS_FT_RDMA_TX; + break; default: return -EOPNOTSUPP; } -- cgit