#include "sfc_ev.h"
#include "sfc_rx.h"
#include "sfc_tx.h"
+#include "sfc_kvargs.h"
/* Initial delay when waiting for event queue init complete event */
struct sfc_adapter *sa = evq->sa;
struct rte_eth_link *dev_link = &sa->eth_dev->data->dev_link;
struct rte_eth_link new_link;
+ uint64_t new_link_u64;
+ uint64_t old_link_u64;
EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
sfc_port_link_mode_to_info(link_mode, &new_link);
- rte_atomic64_set((rte_atomic64_t *)dev_link, *(uint64_t *)&new_link);
+
+ new_link_u64 = *(uint64_t *)&new_link;
+ do {
+ old_link_u64 = rte_atomic64_read((rte_atomic64_t *)dev_link);
+ if (old_link_u64 == new_link_u64)
+ break;
+
+ if (rte_atomic64_cmpset((volatile uint64_t *)dev_link,
+ old_link_u64, new_link_u64)) {
+ evq->sa->port.lsc_seq++;
+ break;
+ }
+ } while (B_TRUE);
return B_FALSE;
}
/* Create the common code event queue */
rc = efx_ev_qcreate(sa->nic, sw_index, esmp, evq_info->entries,
- 0 /* unused on EF10 */, 0,
- EFX_EVQ_FLAGS_TYPE_THROUGHPUT |
- EFX_EVQ_FLAGS_NOTIFY_DISABLED,
+ 0 /* unused on EF10 */, 0, evq_info->flags,
&evq->common);
if (rc != 0)
goto fail_ev_qcreate;
if (rc != 0)
goto fail_mgmt_evq_start;
+ if (sa->intr.lsc_intr) {
+ rc = sfc_ev_qprime(sa->evq_info[sa->mgmt_evq_index].evq);
+ if (rc != 0)
+ goto fail_evq0_prime;
+ }
+
rte_spinlock_unlock(&sa->mgmt_evq_lock);
/*
return 0;
+fail_evq0_prime:
+ sfc_ev_qstop(sa, 0);
+
fail_mgmt_evq_start:
rte_spinlock_unlock(&sa->mgmt_evq_lock);
efx_ev_fini(sa->nic);
SFC_ASSERT(rte_is_power_of_2(max_entries));
evq_info->max_entries = max_entries;
+ evq_info->flags = sa->evq_flags |
+ ((sa->intr.lsc_intr && sw_index == sa->mgmt_evq_index) ?
+ EFX_EVQ_FLAGS_NOTIFY_INTERRUPT :
+ EFX_EVQ_FLAGS_NOTIFY_DISABLED);
+
+ return 0;
+}
+
+static int
+sfc_kvarg_perf_profile_handler(__rte_unused const char *key,
+ const char *value_str, void *opaque)
+{
+ uint64_t *value = opaque;
+
+ if (strcasecmp(value_str, SFC_KVARG_PERF_PROFILE_THROUGHPUT) == 0)
+ *value = EFX_EVQ_FLAGS_TYPE_THROUGHPUT;
+ else if (strcasecmp(value_str, SFC_KVARG_PERF_PROFILE_LOW_LATENCY) == 0)
+ *value = EFX_EVQ_FLAGS_TYPE_LOW_LATENCY;
+ else if (strcasecmp(value_str, SFC_KVARG_PERF_PROFILE_AUTO) == 0)
+ *value = EFX_EVQ_FLAGS_TYPE_AUTO;
+ else
+ return -EINVAL;
return 0;
}
sfc_log_init(sa, "entry");
+ sa->evq_flags = EFX_EVQ_FLAGS_TYPE_THROUGHPUT;
+ rc = sfc_kvargs_process(sa, SFC_KVARG_PERF_PROFILE,
+ sfc_kvarg_perf_profile_handler,
+ &sa->evq_flags);
+ if (rc != 0) {
+ sfc_err(sa, "invalid %s parameter value",
+ SFC_KVARG_PERF_PROFILE);
+ goto fail_kvarg_perf_profile;
+ }
+
sa->evq_count = sfc_ev_qcount(sa);
sa->mgmt_evq_index = 0;
rte_spinlock_init(&sa->mgmt_evq_lock);
fail_evqs_alloc:
sa->evq_count = 0;
+
+fail_kvarg_perf_profile:
sfc_log_init(sa, "failed %d", rc);
return rc;
}