/*-
- * Copyright (c) 2016 Solarflare Communications Inc.
+ * BSD LICENSE
+ *
+ * Copyright (c) 2016-2017 Solarflare Communications Inc.
* All rights reserved.
*
* This software was jointly developed between OKTET Labs (under contract
#include "sfc.h"
#include "sfc_log.h"
+#include "sfc_kvargs.h"
+
+/** Default MAC statistics update period is 1 second */
+#define SFC_MAC_STATS_UPDATE_PERIOD_MS_DEF MS_PER_S
+
+/** The number of microseconds to sleep on attempt to get statistics update */
+#define SFC_MAC_STATS_UPDATE_RETRY_INTERVAL_US 10
+
+/** The number of attempts to await arrival of freshly generated statistics */
+#define SFC_MAC_STATS_UPDATE_NB_ATTEMPTS 50
/**
* Update MAC statistics in the buffer.
sfc_port_update_mac_stats(struct sfc_adapter *sa)
{
struct sfc_port *port = &sa->port;
+ efsys_mem_t *esmp = &port->mac_stats_dma_mem;
+ uint32_t *genp = NULL;
+ uint32_t gen_old;
+ unsigned int nb_attempts = 0;
int rc;
SFC_ASSERT(rte_spinlock_is_locked(&port->mac_stats_lock));
if (sa->state != SFC_ADAPTER_STARTED)
return EINVAL;
- rc = efx_mac_stats_update(sa->nic, &port->mac_stats_dma_mem,
- port->mac_stats_buf, NULL);
- if (rc != 0)
- return rc;
+ /*
+ * If periodic statistics DMA'ing is off or if not supported,
+ * make a manual request and keep an eye on timer if need be
+ */
+ if (!port->mac_stats_periodic_dma_supported ||
+ (port->mac_stats_update_period_ms == 0)) {
+ if (port->mac_stats_update_period_ms != 0) {
+ uint64_t timestamp = sfc_get_system_msecs();
+
+ if ((timestamp -
+ port->mac_stats_last_request_timestamp) <
+ port->mac_stats_update_period_ms)
+ return 0;
+
+ port->mac_stats_last_request_timestamp = timestamp;
+ }
+
+ rc = efx_mac_stats_upload(sa->nic, esmp);
+ if (rc != 0)
+ return rc;
+
+ genp = &port->mac_stats_update_generation;
+ gen_old = *genp;
+ }
+
+ do {
+ if (nb_attempts > 0)
+ rte_delay_us(SFC_MAC_STATS_UPDATE_RETRY_INTERVAL_US);
+
+ rc = efx_mac_stats_update(sa->nic, esmp,
+ port->mac_stats_buf, genp);
+ if (rc != 0)
+ return rc;
+
+ } while ((genp != NULL) && (*genp == gen_old) &&
+ (++nb_attempts < SFC_MAC_STATS_UPDATE_NB_ATTEMPTS));
return 0;
}
efx_mac_stats_get_mask(sa->nic, port->mac_stats_mask,
sizeof(port->mac_stats_mask));
- /* Update MAC stats using periodic DMA.
- * Common code always uses 1000ms update period, so period_ms
- * parameter only needs to be non-zero to start updates.
- */
- sfc_log_init(sa, "request MAC stats DMA'ing");
- rc = efx_mac_stats_periodic(sa->nic, &port->mac_stats_dma_mem,
- 1000, B_FALSE);
- if (rc != 0)
- goto fail_mac_stats_periodic;
+ port->mac_stats_update_generation = 0;
+
+ if (port->mac_stats_update_period_ms != 0) {
+ /*
+ * Update MAC stats using periodic DMA;
+ * any positive update interval different from
+ * 1000 ms can be set only on SFN8xxx provided
+ * that FW version is 6.2.1.1033 or higher
+ */
+ sfc_log_init(sa, "request MAC stats DMA'ing");
+ rc = efx_mac_stats_periodic(sa->nic, &port->mac_stats_dma_mem,
+ port->mac_stats_update_period_ms,
+ B_FALSE);
+ if (rc == 0) {
+ port->mac_stats_periodic_dma_supported = B_TRUE;
+ } else if (rc == EOPNOTSUPP) {
+ port->mac_stats_periodic_dma_supported = B_FALSE;
+ port->mac_stats_last_request_timestamp = 0;
+ } else {
+ goto fail_mac_stats_periodic;
+ }
+ }
sfc_log_init(sa, "disable MAC drain");
rc = efx_mac_drain(sa->nic, B_FALSE);
}
int
-sfc_port_init(struct sfc_adapter *sa)
+sfc_port_configure(struct sfc_adapter *sa)
{
const struct rte_eth_dev_data *dev_data = sa->eth_dev->data;
struct sfc_port *port = &sa->port;
- int rc;
sfc_log_init(sa, "entry");
- /* Enable flow control by default */
- port->flow_ctrl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
- port->flow_ctrl_autoneg = B_TRUE;
-
if (dev_data->dev_conf.rxmode.jumbo_frame)
port->pdu = dev_data->dev_conf.rxmode.max_rx_pkt_len;
else
port->pdu = EFX_MAC_PDU(dev_data->mtu);
+ return 0;
+}
+
+void
+sfc_port_close(struct sfc_adapter *sa)
+{
+ sfc_log_init(sa, "entry");
+}
+
+int
+sfc_port_attach(struct sfc_adapter *sa)
+{
+ struct sfc_port *port = &sa->port;
+ long kvarg_stats_update_period_ms;
+ int rc;
+
+ sfc_log_init(sa, "entry");
+
+ efx_phy_adv_cap_get(sa->nic, EFX_PHY_CAP_PERM, &port->phy_adv_cap_mask);
+
+ /* Enable flow control by default */
+ port->flow_ctrl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
+ port->flow_ctrl_autoneg = B_TRUE;
+
port->max_mcast_addrs = EFX_MAC_MULTICAST_LIST_MAX;
port->nb_mcast_addrs = 0;
port->mcast_addrs = rte_calloc_socket("mcast_addr_list_buf",
port->mac_stats_reset_pending = B_FALSE;
+ kvarg_stats_update_period_ms = SFC_MAC_STATS_UPDATE_PERIOD_MS_DEF;
+
+ rc = sfc_kvargs_process(sa, SFC_KVARG_STATS_UPDATE_PERIOD_MS,
+ sfc_kvarg_long_handler,
+ &kvarg_stats_update_period_ms);
+ if ((rc == 0) &&
+ ((kvarg_stats_update_period_ms < 0) ||
+ (kvarg_stats_update_period_ms > UINT16_MAX))) {
+ sfc_err(sa, "wrong '" SFC_KVARG_STATS_UPDATE_PERIOD_MS "' "
+ "was set (%ld);", kvarg_stats_update_period_ms);
+ sfc_err(sa, "it must not be less than 0 "
+ "or greater than %" PRIu16, UINT16_MAX);
+ rc = EINVAL;
+ goto fail_kvarg_stats_update_period_ms;
+ } else if (rc != 0) {
+ goto fail_kvarg_stats_update_period_ms;
+ }
+
+ port->mac_stats_update_period_ms = kvarg_stats_update_period_ms;
+
sfc_log_init(sa, "done");
return 0;
+fail_kvarg_stats_update_period_ms:
fail_mac_stats_dma_alloc:
rte_free(port->mac_stats_buf);
fail_mac_stats_buf_alloc:
}
void
-sfc_port_fini(struct sfc_adapter *sa)
+sfc_port_detach(struct sfc_adapter *sa)
{
struct sfc_port *port = &sa->port;
git.droids-corp.org / dpdk.git / blobdiff