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789 lines
23 KiB
789 lines
23 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
/* Copyright 2020, NXP Semiconductors |
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*/ |
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#include <net/tc_act/tc_gate.h> |
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#include <linux/dsa/8021q.h> |
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#include "sja1105_vl.h" |
|
|
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#define SJA1105_SIZE_VL_STATUS 8 |
|
|
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/* Insert into the global gate list, sorted by gate action time. */ |
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static int sja1105_insert_gate_entry(struct sja1105_gating_config *gating_cfg, |
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struct sja1105_rule *rule, |
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u8 gate_state, s64 entry_time, |
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struct netlink_ext_ack *extack) |
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{ |
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struct sja1105_gate_entry *e; |
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int rc; |
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|
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e = kzalloc(sizeof(*e), GFP_KERNEL); |
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if (!e) |
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return -ENOMEM; |
|
|
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e->rule = rule; |
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e->gate_state = gate_state; |
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e->interval = entry_time; |
|
|
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if (list_empty(&gating_cfg->entries)) { |
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list_add(&e->list, &gating_cfg->entries); |
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} else { |
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struct sja1105_gate_entry *p; |
|
|
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list_for_each_entry(p, &gating_cfg->entries, list) { |
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if (p->interval == e->interval) { |
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NL_SET_ERR_MSG_MOD(extack, |
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"Gate conflict"); |
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rc = -EBUSY; |
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goto err; |
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} |
|
|
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if (e->interval < p->interval) |
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break; |
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} |
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list_add(&e->list, p->list.prev); |
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} |
|
|
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gating_cfg->num_entries++; |
|
|
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return 0; |
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err: |
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kfree(e); |
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return rc; |
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} |
|
|
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/* The gate entries contain absolute times in their e->interval field. Convert |
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* that to proper intervals (i.e. "0, 5, 10, 15" to "5, 5, 5, 5"). |
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*/ |
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static void |
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sja1105_gating_cfg_time_to_interval(struct sja1105_gating_config *gating_cfg, |
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u64 cycle_time) |
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{ |
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struct sja1105_gate_entry *last_e; |
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struct sja1105_gate_entry *e; |
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struct list_head *prev; |
|
|
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list_for_each_entry(e, &gating_cfg->entries, list) { |
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struct sja1105_gate_entry *p; |
|
|
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prev = e->list.prev; |
|
|
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if (prev == &gating_cfg->entries) |
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continue; |
|
|
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p = list_entry(prev, struct sja1105_gate_entry, list); |
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p->interval = e->interval - p->interval; |
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} |
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last_e = list_last_entry(&gating_cfg->entries, |
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struct sja1105_gate_entry, list); |
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last_e->interval = cycle_time - last_e->interval; |
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} |
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|
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static void sja1105_free_gating_config(struct sja1105_gating_config *gating_cfg) |
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{ |
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struct sja1105_gate_entry *e, *n; |
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|
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list_for_each_entry_safe(e, n, &gating_cfg->entries, list) { |
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list_del(&e->list); |
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kfree(e); |
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} |
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} |
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|
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static int sja1105_compose_gating_subschedule(struct sja1105_private *priv, |
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struct netlink_ext_ack *extack) |
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{ |
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struct sja1105_gating_config *gating_cfg = &priv->tas_data.gating_cfg; |
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struct sja1105_rule *rule; |
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s64 max_cycle_time = 0; |
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s64 its_base_time = 0; |
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int i, rc = 0; |
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|
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sja1105_free_gating_config(gating_cfg); |
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|
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list_for_each_entry(rule, &priv->flow_block.rules, list) { |
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if (rule->type != SJA1105_RULE_VL) |
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continue; |
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if (rule->vl.type != SJA1105_VL_TIME_TRIGGERED) |
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continue; |
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|
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if (max_cycle_time < rule->vl.cycle_time) { |
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max_cycle_time = rule->vl.cycle_time; |
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its_base_time = rule->vl.base_time; |
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} |
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} |
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|
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if (!max_cycle_time) |
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return 0; |
|
|
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dev_dbg(priv->ds->dev, "max_cycle_time %lld its_base_time %lld\n", |
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max_cycle_time, its_base_time); |
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|
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gating_cfg->base_time = its_base_time; |
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gating_cfg->cycle_time = max_cycle_time; |
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gating_cfg->num_entries = 0; |
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|
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list_for_each_entry(rule, &priv->flow_block.rules, list) { |
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s64 time; |
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s64 rbt; |
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|
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if (rule->type != SJA1105_RULE_VL) |
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continue; |
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if (rule->vl.type != SJA1105_VL_TIME_TRIGGERED) |
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continue; |
|
|
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/* Calculate the difference between this gating schedule's |
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* base time, and the base time of the gating schedule with the |
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* longest cycle time. We call it the relative base time (rbt). |
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*/ |
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rbt = future_base_time(rule->vl.base_time, rule->vl.cycle_time, |
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its_base_time); |
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rbt -= its_base_time; |
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|
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time = rbt; |
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|
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for (i = 0; i < rule->vl.num_entries; i++) { |
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u8 gate_state = rule->vl.entries[i].gate_state; |
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s64 entry_time = time; |
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|
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while (entry_time < max_cycle_time) { |
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rc = sja1105_insert_gate_entry(gating_cfg, rule, |
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gate_state, |
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entry_time, |
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extack); |
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if (rc) |
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goto err; |
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|
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entry_time += rule->vl.cycle_time; |
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} |
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time += rule->vl.entries[i].interval; |
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} |
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} |
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|
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sja1105_gating_cfg_time_to_interval(gating_cfg, max_cycle_time); |
|
|
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return 0; |
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err: |
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sja1105_free_gating_config(gating_cfg); |
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return rc; |
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} |
|
|
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/* The switch flow classification core implements TTEthernet, which 'thinks' in |
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* terms of Virtual Links (VL), a concept borrowed from ARINC 664 part 7. |
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* However it also has one other operating mode (VLLUPFORMAT=0) where it acts |
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* somewhat closer to a pre-standard implementation of IEEE 802.1Qci |
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* (Per-Stream Filtering and Policing), which is what the driver is going to be |
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* implementing. |
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* |
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* VL Lookup |
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* Key = {DMAC && VLANID +---------+ Key = { (DMAC[47:16] & VLMASK == |
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* && VLAN PCP | | VLMARKER) |
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* && INGRESS PORT} +---------+ (both fixed) |
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* (exact match, | && DMAC[15:0] == VLID |
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* all specified in rule) | (specified in rule) |
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* v && INGRESS PORT } |
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* ------------ |
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* 0 (PSFP) / \ 1 (ARINC664) |
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* +-----------/ VLLUPFORMAT \----------+ |
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* | \ (fixed) / | |
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* | \ / | |
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* 0 (forwarding) v ------------ | |
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* ------------ | |
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* / \ 1 (QoS classification) | |
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* +---/ ISCRITICAL \-----------+ | |
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* | \ (per rule) / | | |
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* | \ / VLID taken from VLID taken from |
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* v ------------ index of rule contents of rule |
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* select that matched that matched |
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* DESTPORTS | | |
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* | +---------+--------+ |
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* | | |
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* | v |
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* | VL Forwarding |
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* | (indexed by VLID) |
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* | +---------+ |
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* | +--------------| | |
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* | | select TYPE +---------+ |
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* | v |
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* | 0 (rate ------------ 1 (time |
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* | constrained) / \ triggered) |
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* | +------/ TYPE \------------+ |
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* | | \ (per VLID) / | |
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* | v \ / v |
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* | VL Policing ------------ VL Policing |
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* | (indexed by VLID) (indexed by VLID) |
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* | +---------+ +---------+ |
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* | | TYPE=0 | | TYPE=1 | |
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* | +---------+ +---------+ |
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* | select SHARINDX select SHARINDX to |
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* | to rate-limit re-enter VL Forwarding |
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* | groups of VL's with new VLID for egress |
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* | to same quota | |
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* | | | |
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* | select MAXLEN -> exceed => drop select MAXLEN -> exceed => drop |
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* | | | |
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* | v v |
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* | VL Forwarding VL Forwarding |
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* | (indexed by SHARINDX) (indexed by SHARINDX) |
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* | +---------+ +---------+ |
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* | | TYPE=0 | | TYPE=1 | |
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* | +---------+ +---------+ |
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* | select PRIORITY, select PRIORITY, |
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* | PARTITION, DESTPORTS PARTITION, DESTPORTS |
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* | | | |
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* | v v |
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* | VL Policing VL Policing |
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* | (indexed by SHARINDX) (indexed by SHARINDX) |
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* | +---------+ +---------+ |
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* | | TYPE=0 | | TYPE=1 | |
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* | +---------+ +---------+ |
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* | | | |
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* | v | |
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* | select BAG, -> exceed => drop | |
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* | JITTER v |
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* | | ---------------------------------------------- |
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* | | / Reception Window is open for this VL \ |
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* | | / (the Schedule Table executes an entry i \ |
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* | | / M <= i < N, for which these conditions hold): \ no |
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* | | +----/ \-+ |
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* | | |yes \ WINST[M] == 1 && WINSTINDEX[M] == VLID / | |
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* | | | \ WINEND[N] == 1 && WINSTINDEX[N] == VLID / | |
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* | | | \ / | |
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* | | | \ (the VL window has opened and not yet closed)/ | |
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* | | | ---------------------------------------------- | |
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* | | v v |
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* | | dispatch to DESTPORTS when the Schedule Table drop |
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* | | executes an entry i with TXEN == 1 && VLINDEX == i |
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* v v |
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* dispatch immediately to DESTPORTS |
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* |
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* The per-port classification key is always composed of {DMAC, VID, PCP} and |
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* is non-maskable. This 'looks like' the NULL stream identification function |
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* from IEEE 802.1CB clause 6, except for the extra VLAN PCP. When the switch |
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* ports operate as VLAN-unaware, we do allow the user to not specify the VLAN |
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* ID and PCP, and then the port-based defaults will be used. |
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* |
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* In TTEthernet, routing is something that needs to be done manually for each |
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* Virtual Link. So the flow action must always include one of: |
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* a. 'redirect', 'trap' or 'drop': select the egress port list |
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* Additionally, the following actions may be applied on a Virtual Link, |
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* turning it into 'critical' traffic: |
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* b. 'police': turn it into a rate-constrained VL, with bandwidth limitation |
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* given by the maximum frame length, bandwidth allocation gap (BAG) and |
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* maximum jitter. |
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* c. 'gate': turn it into a time-triggered VL, which can be only be received |
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* and forwarded according to a given schedule. |
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*/ |
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|
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static bool sja1105_vl_key_lower(struct sja1105_vl_lookup_entry *a, |
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struct sja1105_vl_lookup_entry *b) |
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{ |
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if (a->macaddr < b->macaddr) |
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return true; |
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if (a->macaddr > b->macaddr) |
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return false; |
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if (a->vlanid < b->vlanid) |
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return true; |
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if (a->vlanid > b->vlanid) |
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return false; |
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if (a->port < b->port) |
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return true; |
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if (a->port > b->port) |
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return false; |
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if (a->vlanprior < b->vlanprior) |
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return true; |
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if (a->vlanprior > b->vlanprior) |
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return false; |
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/* Keys are equal */ |
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return false; |
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} |
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|
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static int sja1105_init_virtual_links(struct sja1105_private *priv, |
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struct netlink_ext_ack *extack) |
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{ |
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struct sja1105_vl_policing_entry *vl_policing; |
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struct sja1105_vl_forwarding_entry *vl_fwd; |
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struct sja1105_vl_lookup_entry *vl_lookup; |
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bool have_critical_virtual_links = false; |
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struct sja1105_table *table; |
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struct sja1105_rule *rule; |
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int num_virtual_links = 0; |
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int max_sharindx = 0; |
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int i, j, k; |
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|
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/* Figure out the dimensioning of the problem */ |
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list_for_each_entry(rule, &priv->flow_block.rules, list) { |
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if (rule->type != SJA1105_RULE_VL) |
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continue; |
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/* Each VL lookup entry matches on a single ingress port */ |
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num_virtual_links += hweight_long(rule->port_mask); |
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|
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if (rule->vl.type != SJA1105_VL_NONCRITICAL) |
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have_critical_virtual_links = true; |
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if (max_sharindx < rule->vl.sharindx) |
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max_sharindx = rule->vl.sharindx; |
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} |
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|
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if (num_virtual_links > SJA1105_MAX_VL_LOOKUP_COUNT) { |
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NL_SET_ERR_MSG_MOD(extack, "Not enough VL entries available"); |
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return -ENOSPC; |
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} |
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|
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if (max_sharindx + 1 > SJA1105_MAX_VL_LOOKUP_COUNT) { |
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NL_SET_ERR_MSG_MOD(extack, "Policer index out of range"); |
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return -ENOSPC; |
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} |
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|
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max_sharindx = max_t(int, num_virtual_links, max_sharindx) + 1; |
|
|
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/* Discard previous VL Lookup Table */ |
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table = &priv->static_config.tables[BLK_IDX_VL_LOOKUP]; |
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if (table->entry_count) { |
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kfree(table->entries); |
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table->entry_count = 0; |
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} |
|
|
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/* Discard previous VL Policing Table */ |
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table = &priv->static_config.tables[BLK_IDX_VL_POLICING]; |
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if (table->entry_count) { |
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kfree(table->entries); |
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table->entry_count = 0; |
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} |
|
|
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/* Discard previous VL Forwarding Table */ |
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table = &priv->static_config.tables[BLK_IDX_VL_FORWARDING]; |
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if (table->entry_count) { |
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kfree(table->entries); |
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table->entry_count = 0; |
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} |
|
|
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/* Discard previous VL Forwarding Parameters Table */ |
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table = &priv->static_config.tables[BLK_IDX_VL_FORWARDING_PARAMS]; |
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if (table->entry_count) { |
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kfree(table->entries); |
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table->entry_count = 0; |
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} |
|
|
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/* Nothing to do */ |
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if (!num_virtual_links) |
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return 0; |
|
|
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/* Pre-allocate space in the static config tables */ |
|
|
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/* VL Lookup Table */ |
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table = &priv->static_config.tables[BLK_IDX_VL_LOOKUP]; |
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table->entries = kcalloc(num_virtual_links, |
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table->ops->unpacked_entry_size, |
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GFP_KERNEL); |
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if (!table->entries) |
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return -ENOMEM; |
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table->entry_count = num_virtual_links; |
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vl_lookup = table->entries; |
|
|
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k = 0; |
|
|
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list_for_each_entry(rule, &priv->flow_block.rules, list) { |
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unsigned long port; |
|
|
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if (rule->type != SJA1105_RULE_VL) |
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continue; |
|
|
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for_each_set_bit(port, &rule->port_mask, SJA1105_NUM_PORTS) { |
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vl_lookup[k].format = SJA1105_VL_FORMAT_PSFP; |
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vl_lookup[k].port = port; |
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vl_lookup[k].macaddr = rule->key.vl.dmac; |
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if (rule->key.type == SJA1105_KEY_VLAN_AWARE_VL) { |
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vl_lookup[k].vlanid = rule->key.vl.vid; |
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vl_lookup[k].vlanprior = rule->key.vl.pcp; |
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} else { |
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u16 vid = dsa_8021q_rx_vid(priv->ds, port); |
|
|
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vl_lookup[k].vlanid = vid; |
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vl_lookup[k].vlanprior = 0; |
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} |
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/* For critical VLs, the DESTPORTS mask is taken from |
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* the VL Forwarding Table, so no point in putting it |
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* in the VL Lookup Table |
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*/ |
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if (rule->vl.type == SJA1105_VL_NONCRITICAL) |
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vl_lookup[k].destports = rule->vl.destports; |
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else |
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vl_lookup[k].iscritical = true; |
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vl_lookup[k].flow_cookie = rule->cookie; |
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k++; |
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} |
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} |
|
|
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/* UM10944.pdf chapter 4.2.3 VL Lookup table: |
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* "the entries in the VL Lookup table must be sorted in ascending |
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* order (i.e. the smallest value must be loaded first) according to |
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* the following sort order: MACADDR, VLANID, PORT, VLANPRIOR." |
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*/ |
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for (i = 0; i < num_virtual_links; i++) { |
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struct sja1105_vl_lookup_entry *a = &vl_lookup[i]; |
|
|
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for (j = i + 1; j < num_virtual_links; j++) { |
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struct sja1105_vl_lookup_entry *b = &vl_lookup[j]; |
|
|
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if (sja1105_vl_key_lower(b, a)) { |
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struct sja1105_vl_lookup_entry tmp = *a; |
|
|
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*a = *b; |
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*b = tmp; |
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} |
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} |
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} |
|
|
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if (!have_critical_virtual_links) |
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return 0; |
|
|
|
/* VL Policing Table */ |
|
table = &priv->static_config.tables[BLK_IDX_VL_POLICING]; |
|
table->entries = kcalloc(max_sharindx, table->ops->unpacked_entry_size, |
|
GFP_KERNEL); |
|
if (!table->entries) |
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return -ENOMEM; |
|
table->entry_count = max_sharindx; |
|
vl_policing = table->entries; |
|
|
|
/* VL Forwarding Table */ |
|
table = &priv->static_config.tables[BLK_IDX_VL_FORWARDING]; |
|
table->entries = kcalloc(max_sharindx, table->ops->unpacked_entry_size, |
|
GFP_KERNEL); |
|
if (!table->entries) |
|
return -ENOMEM; |
|
table->entry_count = max_sharindx; |
|
vl_fwd = table->entries; |
|
|
|
/* VL Forwarding Parameters Table */ |
|
table = &priv->static_config.tables[BLK_IDX_VL_FORWARDING_PARAMS]; |
|
table->entries = kcalloc(1, table->ops->unpacked_entry_size, |
|
GFP_KERNEL); |
|
if (!table->entries) |
|
return -ENOMEM; |
|
table->entry_count = 1; |
|
|
|
for (i = 0; i < num_virtual_links; i++) { |
|
unsigned long cookie = vl_lookup[i].flow_cookie; |
|
struct sja1105_rule *rule = sja1105_rule_find(priv, cookie); |
|
|
|
if (rule->vl.type == SJA1105_VL_NONCRITICAL) |
|
continue; |
|
if (rule->vl.type == SJA1105_VL_TIME_TRIGGERED) { |
|
int sharindx = rule->vl.sharindx; |
|
|
|
vl_policing[i].type = 1; |
|
vl_policing[i].sharindx = sharindx; |
|
vl_policing[i].maxlen = rule->vl.maxlen; |
|
vl_policing[sharindx].type = 1; |
|
|
|
vl_fwd[i].type = 1; |
|
vl_fwd[sharindx].type = 1; |
|
vl_fwd[sharindx].priority = rule->vl.ipv; |
|
vl_fwd[sharindx].partition = 0; |
|
vl_fwd[sharindx].destports = rule->vl.destports; |
|
} |
|
} |
|
|
|
sja1105_frame_memory_partitioning(priv); |
|
|
|
return 0; |
|
} |
|
|
|
int sja1105_vl_redirect(struct sja1105_private *priv, int port, |
|
struct netlink_ext_ack *extack, unsigned long cookie, |
|
struct sja1105_key *key, unsigned long destports, |
|
bool append) |
|
{ |
|
struct sja1105_rule *rule = sja1105_rule_find(priv, cookie); |
|
int rc; |
|
|
|
if (priv->vlan_state == SJA1105_VLAN_UNAWARE && |
|
key->type != SJA1105_KEY_VLAN_UNAWARE_VL) { |
|
NL_SET_ERR_MSG_MOD(extack, |
|
"Can only redirect based on DMAC"); |
|
return -EOPNOTSUPP; |
|
} else if ((priv->vlan_state == SJA1105_VLAN_BEST_EFFORT || |
|
priv->vlan_state == SJA1105_VLAN_FILTERING_FULL) && |
|
key->type != SJA1105_KEY_VLAN_AWARE_VL) { |
|
NL_SET_ERR_MSG_MOD(extack, |
|
"Can only redirect based on {DMAC, VID, PCP}"); |
|
return -EOPNOTSUPP; |
|
} |
|
|
|
if (!rule) { |
|
rule = kzalloc(sizeof(*rule), GFP_KERNEL); |
|
if (!rule) |
|
return -ENOMEM; |
|
|
|
rule->cookie = cookie; |
|
rule->type = SJA1105_RULE_VL; |
|
rule->key = *key; |
|
list_add(&rule->list, &priv->flow_block.rules); |
|
} |
|
|
|
rule->port_mask |= BIT(port); |
|
if (append) |
|
rule->vl.destports |= destports; |
|
else |
|
rule->vl.destports = destports; |
|
|
|
rc = sja1105_init_virtual_links(priv, extack); |
|
if (rc) { |
|
rule->port_mask &= ~BIT(port); |
|
if (!rule->port_mask) { |
|
list_del(&rule->list); |
|
kfree(rule); |
|
} |
|
} |
|
|
|
return rc; |
|
} |
|
|
|
int sja1105_vl_delete(struct sja1105_private *priv, int port, |
|
struct sja1105_rule *rule, struct netlink_ext_ack *extack) |
|
{ |
|
int rc; |
|
|
|
rule->port_mask &= ~BIT(port); |
|
if (!rule->port_mask) { |
|
list_del(&rule->list); |
|
kfree(rule); |
|
} |
|
|
|
rc = sja1105_compose_gating_subschedule(priv, extack); |
|
if (rc) |
|
return rc; |
|
|
|
rc = sja1105_init_virtual_links(priv, extack); |
|
if (rc) |
|
return rc; |
|
|
|
rc = sja1105_init_scheduling(priv); |
|
if (rc < 0) |
|
return rc; |
|
|
|
return sja1105_static_config_reload(priv, SJA1105_VIRTUAL_LINKS); |
|
} |
|
|
|
int sja1105_vl_gate(struct sja1105_private *priv, int port, |
|
struct netlink_ext_ack *extack, unsigned long cookie, |
|
struct sja1105_key *key, u32 index, s32 prio, |
|
u64 base_time, u64 cycle_time, u64 cycle_time_ext, |
|
u32 num_entries, struct action_gate_entry *entries) |
|
{ |
|
struct sja1105_rule *rule = sja1105_rule_find(priv, cookie); |
|
int ipv = -1; |
|
int i, rc; |
|
s32 rem; |
|
|
|
if (cycle_time_ext) { |
|
NL_SET_ERR_MSG_MOD(extack, |
|
"Cycle time extension not supported"); |
|
return -EOPNOTSUPP; |
|
} |
|
|
|
div_s64_rem(base_time, sja1105_delta_to_ns(1), &rem); |
|
if (rem) { |
|
NL_SET_ERR_MSG_MOD(extack, |
|
"Base time must be multiple of 200 ns"); |
|
return -ERANGE; |
|
} |
|
|
|
div_s64_rem(cycle_time, sja1105_delta_to_ns(1), &rem); |
|
if (rem) { |
|
NL_SET_ERR_MSG_MOD(extack, |
|
"Cycle time must be multiple of 200 ns"); |
|
return -ERANGE; |
|
} |
|
|
|
if (priv->vlan_state == SJA1105_VLAN_UNAWARE && |
|
key->type != SJA1105_KEY_VLAN_UNAWARE_VL) { |
|
NL_SET_ERR_MSG_MOD(extack, |
|
"Can only gate based on DMAC"); |
|
return -EOPNOTSUPP; |
|
} else if ((priv->vlan_state == SJA1105_VLAN_BEST_EFFORT || |
|
priv->vlan_state == SJA1105_VLAN_FILTERING_FULL) && |
|
key->type != SJA1105_KEY_VLAN_AWARE_VL) { |
|
NL_SET_ERR_MSG_MOD(extack, |
|
"Can only gate based on {DMAC, VID, PCP}"); |
|
return -EOPNOTSUPP; |
|
} |
|
|
|
if (!rule) { |
|
rule = kzalloc(sizeof(*rule), GFP_KERNEL); |
|
if (!rule) |
|
return -ENOMEM; |
|
|
|
list_add(&rule->list, &priv->flow_block.rules); |
|
rule->cookie = cookie; |
|
rule->type = SJA1105_RULE_VL; |
|
rule->key = *key; |
|
rule->vl.type = SJA1105_VL_TIME_TRIGGERED; |
|
rule->vl.sharindx = index; |
|
rule->vl.base_time = base_time; |
|
rule->vl.cycle_time = cycle_time; |
|
rule->vl.num_entries = num_entries; |
|
rule->vl.entries = kcalloc(num_entries, |
|
sizeof(struct action_gate_entry), |
|
GFP_KERNEL); |
|
if (!rule->vl.entries) { |
|
rc = -ENOMEM; |
|
goto out; |
|
} |
|
|
|
for (i = 0; i < num_entries; i++) { |
|
div_s64_rem(entries[i].interval, |
|
sja1105_delta_to_ns(1), &rem); |
|
if (rem) { |
|
NL_SET_ERR_MSG_MOD(extack, |
|
"Interval must be multiple of 200 ns"); |
|
rc = -ERANGE; |
|
goto out; |
|
} |
|
|
|
if (!entries[i].interval) { |
|
NL_SET_ERR_MSG_MOD(extack, |
|
"Interval cannot be zero"); |
|
rc = -ERANGE; |
|
goto out; |
|
} |
|
|
|
if (ns_to_sja1105_delta(entries[i].interval) > |
|
SJA1105_TAS_MAX_DELTA) { |
|
NL_SET_ERR_MSG_MOD(extack, |
|
"Maximum interval is 52 ms"); |
|
rc = -ERANGE; |
|
goto out; |
|
} |
|
|
|
if (entries[i].maxoctets != -1) { |
|
NL_SET_ERR_MSG_MOD(extack, |
|
"Cannot offload IntervalOctetMax"); |
|
rc = -EOPNOTSUPP; |
|
goto out; |
|
} |
|
|
|
if (ipv == -1) { |
|
ipv = entries[i].ipv; |
|
} else if (ipv != entries[i].ipv) { |
|
NL_SET_ERR_MSG_MOD(extack, |
|
"Only support a single IPV per VL"); |
|
rc = -EOPNOTSUPP; |
|
goto out; |
|
} |
|
|
|
rule->vl.entries[i] = entries[i]; |
|
} |
|
|
|
if (ipv == -1) { |
|
if (key->type == SJA1105_KEY_VLAN_AWARE_VL) |
|
ipv = key->vl.pcp; |
|
else |
|
ipv = 0; |
|
} |
|
|
|
/* TODO: support per-flow MTU */ |
|
rule->vl.maxlen = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN; |
|
rule->vl.ipv = ipv; |
|
} |
|
|
|
rule->port_mask |= BIT(port); |
|
|
|
rc = sja1105_compose_gating_subschedule(priv, extack); |
|
if (rc) |
|
goto out; |
|
|
|
rc = sja1105_init_virtual_links(priv, extack); |
|
if (rc) |
|
goto out; |
|
|
|
if (sja1105_gating_check_conflicts(priv, -1, extack)) { |
|
NL_SET_ERR_MSG_MOD(extack, "Conflict with tc-taprio schedule"); |
|
rc = -ERANGE; |
|
goto out; |
|
} |
|
|
|
out: |
|
if (rc) { |
|
rule->port_mask &= ~BIT(port); |
|
if (!rule->port_mask) { |
|
list_del(&rule->list); |
|
kfree(rule->vl.entries); |
|
kfree(rule); |
|
} |
|
} |
|
|
|
return rc; |
|
} |
|
|
|
static int sja1105_find_vlid(struct sja1105_private *priv, int port, |
|
struct sja1105_key *key) |
|
{ |
|
struct sja1105_vl_lookup_entry *vl_lookup; |
|
struct sja1105_table *table; |
|
int i; |
|
|
|
if (WARN_ON(key->type != SJA1105_KEY_VLAN_AWARE_VL && |
|
key->type != SJA1105_KEY_VLAN_UNAWARE_VL)) |
|
return -1; |
|
|
|
table = &priv->static_config.tables[BLK_IDX_VL_LOOKUP]; |
|
vl_lookup = table->entries; |
|
|
|
for (i = 0; i < table->entry_count; i++) { |
|
if (key->type == SJA1105_KEY_VLAN_AWARE_VL) { |
|
if (vl_lookup[i].port == port && |
|
vl_lookup[i].macaddr == key->vl.dmac && |
|
vl_lookup[i].vlanid == key->vl.vid && |
|
vl_lookup[i].vlanprior == key->vl.pcp) |
|
return i; |
|
} else { |
|
if (vl_lookup[i].port == port && |
|
vl_lookup[i].macaddr == key->vl.dmac) |
|
return i; |
|
} |
|
} |
|
|
|
return -1; |
|
} |
|
|
|
int sja1105_vl_stats(struct sja1105_private *priv, int port, |
|
struct sja1105_rule *rule, struct flow_stats *stats, |
|
struct netlink_ext_ack *extack) |
|
{ |
|
const struct sja1105_regs *regs = priv->info->regs; |
|
u8 buf[SJA1105_SIZE_VL_STATUS] = {0}; |
|
u64 unreleased; |
|
u64 timingerr; |
|
u64 lengtherr; |
|
int vlid, rc; |
|
u64 pkts; |
|
|
|
if (rule->vl.type != SJA1105_VL_TIME_TRIGGERED) |
|
return 0; |
|
|
|
vlid = sja1105_find_vlid(priv, port, &rule->key); |
|
if (vlid < 0) |
|
return 0; |
|
|
|
rc = sja1105_xfer_buf(priv, SPI_READ, regs->vl_status + 2 * vlid, buf, |
|
SJA1105_SIZE_VL_STATUS); |
|
if (rc) { |
|
NL_SET_ERR_MSG_MOD(extack, "SPI access failed"); |
|
return rc; |
|
} |
|
|
|
sja1105_unpack(buf, &timingerr, 31, 16, SJA1105_SIZE_VL_STATUS); |
|
sja1105_unpack(buf, &unreleased, 15, 0, SJA1105_SIZE_VL_STATUS); |
|
sja1105_unpack(buf, &lengtherr, 47, 32, SJA1105_SIZE_VL_STATUS); |
|
|
|
pkts = timingerr + unreleased + lengtherr; |
|
|
|
flow_stats_update(stats, 0, pkts - rule->vl.stats.pkts, 0, |
|
jiffies - rule->vl.stats.lastused, |
|
FLOW_ACTION_HW_STATS_IMMEDIATE); |
|
|
|
rule->vl.stats.pkts = pkts; |
|
rule->vl.stats.lastused = jiffies; |
|
|
|
return 0; |
|
}
|
|
|