/* SPDX-License-Identifier: BSD-3-Clause
*
- * Copyright (c) 2017-2018 Solarflare Communications Inc.
- * All rights reserved.
+ * Copyright(c) 2019-2020 Xilinx, Inc.
+ * Copyright(c) 2017-2019 Solarflare Communications Inc.
*
* This software was jointly developed between OKTET Labs (under contract
* for Solarflare) and Solarflare Communications, Inc.
#include "efx.h"
#include "sfc.h"
+#include "sfc_debug.h"
#include "sfc_rx.h"
#include "sfc_filter.h"
#include "sfc_flow.h"
struct sfc_flow_ops_by_spec {
sfc_flow_parse_cb_t *parse;
+ sfc_flow_verify_cb_t *verify;
+ sfc_flow_cleanup_cb_t *cleanup;
sfc_flow_insert_cb_t *insert;
sfc_flow_remove_cb_t *remove;
};
static sfc_flow_parse_cb_t sfc_flow_parse_rte_to_filter;
+static sfc_flow_parse_cb_t sfc_flow_parse_rte_to_mae;
static sfc_flow_insert_cb_t sfc_flow_filter_insert;
static sfc_flow_remove_cb_t sfc_flow_filter_remove;
static const struct sfc_flow_ops_by_spec sfc_flow_ops_filter = {
.parse = sfc_flow_parse_rte_to_filter,
+ .verify = NULL,
+ .cleanup = NULL,
.insert = sfc_flow_filter_insert,
.remove = sfc_flow_filter_remove,
};
+static const struct sfc_flow_ops_by_spec sfc_flow_ops_mae = {
+ .parse = sfc_flow_parse_rte_to_mae,
+ .verify = sfc_mae_flow_verify,
+ .cleanup = sfc_mae_flow_cleanup,
+ .insert = sfc_mae_flow_insert,
+ .remove = sfc_mae_flow_remove,
+};
+
static const struct sfc_flow_ops_by_spec *
sfc_flow_get_ops_by_spec(struct rte_flow *flow)
{
case SFC_FLOW_SPEC_FILTER:
ops = &sfc_flow_ops_filter;
break;
+ case SFC_FLOW_SPEC_MAE:
+ ops = &sfc_flow_ops_mae;
+ break;
default:
SFC_ASSERT(false);
break;
* Protocol-independent flow API support
*/
static int
-sfc_flow_parse_attr(const struct rte_flow_attr *attr,
+sfc_flow_parse_attr(struct sfc_adapter *sa,
+ const struct rte_flow_attr *attr,
struct rte_flow *flow,
struct rte_flow_error *error)
{
struct sfc_flow_spec *spec = &flow->spec;
struct sfc_flow_spec_filter *spec_filter = &spec->filter;
+ struct sfc_flow_spec_mae *spec_mae = &spec->mae;
+ struct sfc_mae *mae = &sa->mae;
if (attr == NULL) {
rte_flow_error_set(error, EINVAL,
spec->type = SFC_FLOW_SPEC_FILTER;
spec_filter->template.efs_flags |= EFX_FILTER_FLAG_RX;
spec_filter->template.efs_rss_context = EFX_RSS_CONTEXT_DEFAULT;
+ spec_filter->template.efs_priority = EFX_FILTER_PRI_MANUAL;
} else {
- rte_flow_error_set(error, ENOTSUP,
- RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER, attr,
- "Transfer is not supported");
- return -rte_errno;
+ if (mae->status != SFC_MAE_STATUS_SUPPORTED) {
+ rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
+ attr, "Transfer is not supported");
+ return -rte_errno;
+ }
+ if (attr->priority > mae->nb_action_rule_prios_max) {
+ rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
+ attr, "Unsupported priority level");
+ return -rte_errno;
+ }
+ spec->type = SFC_FLOW_SPEC_MAE;
+ spec_mae->priority = attr->priority;
+ spec_mae->match_spec = NULL;
+ spec_mae->action_set = NULL;
+ spec_mae->rule_id.id = EFX_MAE_RSRC_ID_INVALID;
}
return 0;
break;
default:
- if (is_ifrm) {
+ if (parse_ctx->type == SFC_FLOW_PARSE_CTX_FILTER &&
+ is_ifrm) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
pattern,
struct sfc_flow_spec *spec = &flow->spec;
struct sfc_flow_spec_filter *spec_filter = &spec->filter;
struct sfc_rxq *rxq;
+ struct sfc_rxq_info *rxq_info;
if (queue->index >= sfc_sa2shared(sa)->rxq_count)
return -EINVAL;
rxq = &sa->rxq_ctrl[queue->index];
spec_filter->template.efs_dmaq_id = (uint16_t)rxq->hw_index;
+ rxq_info = &sfc_sa2shared(sa)->rxq_info[queue->index];
+ spec_filter->rss_hash_required = !!(rxq_info->rxq_flags &
+ SFC_RXQ_FLAG_RSS_HASH);
+
return 0;
}
struct sfc_flow_spec_filter *spec_filter = &flow->spec.filter;
struct sfc_flow_rss *flow_rss = &spec_filter->rss_conf;
uint32_t efs_rss_context = EFX_RSS_CONTEXT_DEFAULT;
+ boolean_t create_context;
unsigned int i;
int rc = 0;
- if (spec_filter->rss) {
- unsigned int rss_spread = MIN(flow_rss->rxq_hw_index_max -
- flow_rss->rxq_hw_index_min + 1,
- EFX_MAXRSS);
+ create_context = spec_filter->rss || (spec_filter->rss_hash_required &&
+ rss->dummy_rss_context == EFX_RSS_CONTEXT_DEFAULT);
+
+ if (create_context) {
+ unsigned int rss_spread;
+ unsigned int rss_hash_types;
+ uint8_t *rss_key;
+
+ if (spec_filter->rss) {
+ rss_spread = MIN(flow_rss->rxq_hw_index_max -
+ flow_rss->rxq_hw_index_min + 1,
+ EFX_MAXRSS);
+ rss_hash_types = flow_rss->rss_hash_types;
+ rss_key = flow_rss->rss_key;
+ } else {
+ /*
+ * Initialize dummy RSS context parameters to have
+ * valid RSS hash. Use default RSS hash function and
+ * key.
+ */
+ rss_spread = 1;
+ rss_hash_types = rss->hash_types;
+ rss_key = rss->key;
+ }
rc = efx_rx_scale_context_alloc(sa->nic,
EFX_RX_SCALE_EXCLUSIVE,
rc = efx_rx_scale_mode_set(sa->nic, efs_rss_context,
rss->hash_alg,
- flow_rss->rss_hash_types, B_TRUE);
+ rss_hash_types, B_TRUE);
if (rc != 0)
goto fail_scale_mode_set;
rc = efx_rx_scale_key_set(sa->nic, efs_rss_context,
- flow_rss->rss_key,
- sizeof(rss->key));
+ rss_key, sizeof(rss->key));
if (rc != 0)
goto fail_scale_key_set;
+ } else {
+ efs_rss_context = rss->dummy_rss_context;
+ }
+ if (spec_filter->rss || spec_filter->rss_hash_required) {
/*
* At this point, fully elaborated filter specifications
* have been produced from the template. To make sure that
efx_filter_spec_t *spec = &spec_filter->filters[i];
spec->efs_rss_context = efs_rss_context;
- spec->efs_dmaq_id = flow_rss->rxq_hw_index_min;
spec->efs_flags |= EFX_FILTER_FLAG_RX_RSS;
+ if (spec_filter->rss)
+ spec->efs_dmaq_id = flow_rss->rxq_hw_index_min;
}
}
if (rc != 0)
goto fail_filter_insert;
- if (spec_filter->rss) {
+ if (create_context) {
+ unsigned int dummy_tbl[RTE_DIM(flow_rss->rss_tbl)] = {0};
+ unsigned int *tbl;
+
+ tbl = spec_filter->rss ? flow_rss->rss_tbl : dummy_tbl;
+
/*
* Scale table is set after filter insertion because
* the table entries are relative to the base RxQ ID
* the table entries, and the operation will succeed
*/
rc = efx_rx_scale_tbl_set(sa->nic, efs_rss_context,
- flow_rss->rss_tbl,
- RTE_DIM(flow_rss->rss_tbl));
+ tbl, RTE_DIM(flow_rss->rss_tbl));
if (rc != 0)
goto fail_scale_tbl_set;
+
+ /* Remember created dummy RSS context */
+ if (!spec_filter->rss)
+ rss->dummy_rss_context = efs_rss_context;
}
return 0;
fail_filter_insert:
fail_scale_key_set:
fail_scale_mode_set:
- if (efs_rss_context != EFX_RSS_CONTEXT_DEFAULT)
+ if (create_context)
efx_rx_scale_context_free(sa->nic, efs_rss_context);
fail_scale_context_alloc:
return -rte_errno;
}
-#define SFC_BUILD_SET_OVERFLOW(_action, _set) \
- RTE_BUILD_BUG_ON(_action >= sizeof(_set) * CHAR_BIT)
-
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
switch (actions->type) {
case RTE_FLOW_ACTION_TYPE_VOID:
actions_set |= (1UL << actions->type);
}
-#undef SFC_BUILD_SET_OVERFLOW
/* When fate is unknown, drop traffic. */
if ((actions_set & fate_actions_mask) == 0) {
return rc;
}
+static int
+sfc_flow_parse_rte_to_mae(struct rte_eth_dev *dev,
+ const struct rte_flow_item pattern[],
+ const struct rte_flow_action actions[],
+ struct rte_flow *flow,
+ struct rte_flow_error *error)
+{
+ struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
+ struct sfc_flow_spec *spec = &flow->spec;
+ struct sfc_flow_spec_mae *spec_mae = &spec->mae;
+ int rc;
+
+ rc = sfc_mae_rule_parse_pattern(sa, pattern, spec_mae, error);
+ if (rc != 0)
+ return rc;
+
+ rc = sfc_mae_rule_parse_actions(sa, actions, &spec_mae->action_set,
+ error);
+ if (rc != 0)
+ return rc;
+
+ return 0;
+}
+
static int
sfc_flow_parse(struct rte_eth_dev *dev,
const struct rte_flow_attr *attr,
struct rte_flow *flow,
struct rte_flow_error *error)
{
+ struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
const struct sfc_flow_ops_by_spec *ops;
int rc;
- rc = sfc_flow_parse_attr(attr, flow, error);
+ rc = sfc_flow_parse_attr(sa, attr, flow, error);
if (rc != 0)
return rc;
}
static void
-sfc_flow_free(__rte_unused struct sfc_adapter *sa, struct rte_flow *flow)
+sfc_flow_free(struct sfc_adapter *sa, struct rte_flow *flow)
{
+ const struct sfc_flow_ops_by_spec *ops;
+
+ ops = sfc_flow_get_ops_by_spec(flow);
+ if (ops != NULL && ops->cleanup != NULL)
+ ops->cleanup(sa, flow);
+
rte_free(flow);
}
return rc;
}
+static int
+sfc_flow_verify(struct sfc_adapter *sa, struct rte_flow *flow,
+ struct rte_flow_error *error)
+{
+ const struct sfc_flow_ops_by_spec *ops;
+ int rc = 0;
+
+ ops = sfc_flow_get_ops_by_spec(flow);
+ if (ops == NULL) {
+ rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
+ "No backend to handle this flow");
+ return -rte_errno;
+ }
+
+ if (ops->verify != NULL) {
+ SFC_ASSERT(sfc_adapter_is_locked(sa));
+ rc = ops->verify(sa, flow);
+ }
+
+ if (rc != 0) {
+ rte_flow_error_set(error, rc,
+ RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
+ "Failed to verify flow validity with FW");
+ return -rte_errno;
+ }
+
+ return 0;
+}
+
static int
sfc_flow_validate(struct rte_eth_dev *dev,
const struct rte_flow_attr *attr,
if (flow == NULL)
return -rte_errno;
+ sfc_adapter_lock(sa);
+
rc = sfc_flow_parse(dev, attr, pattern, actions, flow, error);
+ if (rc == 0)
+ rc = sfc_flow_verify(sa, flow, error);
sfc_flow_free(sa, flow);
+ sfc_adapter_unlock(sa);
+
return rc;
}
if (flow == NULL)
goto fail_no_mem;
+ sfc_adapter_lock(sa);
+
rc = sfc_flow_parse(dev, attr, pattern, actions, flow, error);
if (rc != 0)
goto fail_bad_value;
- sfc_adapter_lock(sa);
-
TAILQ_INSERT_TAIL(&sa->flow_list, flow, entries);
if (sa->state == SFC_ADAPTER_STARTED) {
void
sfc_flow_stop(struct sfc_adapter *sa)
{
+ struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
+ struct sfc_rss *rss = &sas->rss;
struct rte_flow *flow;
SFC_ASSERT(sfc_adapter_is_locked(sa));
TAILQ_FOREACH(flow, &sa->flow_list, entries)
sfc_flow_remove(sa, flow, NULL);
+
+ if (rss->dummy_rss_context != EFX_RSS_CONTEXT_DEFAULT) {
+ efx_rx_scale_context_free(sa->nic, rss->dummy_rss_context);
+ rss->dummy_rss_context = EFX_RSS_CONTEXT_DEFAULT;
+ }
}
int
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