-/*-
- * Copyright (c) 2016 Solarflare Communications Inc.
+/* SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2016-2018 Solarflare Communications Inc.
* All rights reserved.
*
* This software was jointly developed between OKTET Labs (under contract
* for Solarflare) and Solarflare Communications, Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
- * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* sysconf() */
#include <unistd.h>
#include <rte_errno.h>
+#include <rte_alarm.h>
#include "efx.h"
#include "sfc_log.h"
#include "sfc_ev.h"
#include "sfc_rx.h"
+#include "sfc_tx.h"
int
return ENOMEM;
}
- esmp->esm_addr = rte_mem_phy2mch(mz->memseg_id, mz->phys_addr);
- if (esmp->esm_addr == RTE_BAD_PHYS_ADDR) {
+ esmp->esm_addr = mz->iova;
+ if (esmp->esm_addr == RTE_BAD_IOVA) {
(void)rte_memzone_free(mz);
return EFAULT;
}
memset(esmp, 0, sizeof(*esmp));
}
+static uint32_t
+sfc_phy_cap_from_link_speeds(uint32_t speeds)
+{
+ uint32_t phy_caps = 0;
+
+ if (~speeds & ETH_LINK_SPEED_FIXED) {
+ phy_caps |= (1 << EFX_PHY_CAP_AN);
+ /*
+ * If no speeds are specified in the mask, any supported
+ * may be negotiated
+ */
+ if (speeds == ETH_LINK_SPEED_AUTONEG)
+ phy_caps |=
+ (1 << EFX_PHY_CAP_1000FDX) |
+ (1 << EFX_PHY_CAP_10000FDX) |
+ (1 << EFX_PHY_CAP_40000FDX);
+ }
+ if (speeds & ETH_LINK_SPEED_1G)
+ phy_caps |= (1 << EFX_PHY_CAP_1000FDX);
+ if (speeds & ETH_LINK_SPEED_10G)
+ phy_caps |= (1 << EFX_PHY_CAP_10000FDX);
+ if (speeds & ETH_LINK_SPEED_40G)
+ phy_caps |= (1 << EFX_PHY_CAP_40000FDX);
+
+ return phy_caps;
+}
+
/*
* Check requested device level configuration.
* Receive and transmit configuration is checked in corresponding
const struct rte_eth_conf *conf = &sa->eth_dev->data->dev_conf;
int rc = 0;
- if (conf->link_speeds != ETH_LINK_SPEED_AUTONEG) {
- sfc_err(sa, "Manual link speed/duplex choice not supported");
+ sa->port.phy_adv_cap =
+ sfc_phy_cap_from_link_speeds(conf->link_speeds) &
+ sa->port.phy_adv_cap_mask;
+ if ((sa->port.phy_adv_cap & ~(1 << EFX_PHY_CAP_AN)) == 0) {
+ sfc_err(sa, "No link speeds from mask %#x are supported",
+ conf->link_speeds);
rc = EINVAL;
}
rc = EINVAL;
}
- if (conf->intr_conf.lsc != 0) {
+ if ((conf->intr_conf.lsc != 0) &&
+ (sa->intr.type != EFX_INTR_LINE) &&
+ (sa->intr.type != EFX_INTR_MESSAGE)) {
sfc_err(sa, "Link status change interrupt not supported");
rc = EINVAL;
}
limits.edl_max_txq_count =
MIN(encp->enc_txq_limit,
limits.edl_max_evq_count - 1 - limits.edl_max_rxq_count);
+
+ if (sa->tso)
+ limits.edl_max_txq_count =
+ MIN(limits.edl_max_txq_count,
+ encp->enc_fw_assisted_tso_v2_n_contexts /
+ encp->enc_hw_pf_count);
+
SFC_ASSERT(limits.edl_max_txq_count >= limits.edl_min_rxq_count);
/* Configure the minimum required resources needed for the
return efx_nic_set_drv_limits(sa->nic, &lim);
}
-int
-sfc_start(struct sfc_adapter *sa)
+static int
+sfc_try_start(struct sfc_adapter *sa)
{
+ const efx_nic_cfg_t *encp;
int rc;
sfc_log_init(sa, "entry");
SFC_ASSERT(sfc_adapter_is_locked(sa));
-
- switch (sa->state) {
- case SFC_ADAPTER_CONFIGURED:
- break;
- case SFC_ADAPTER_STARTED:
- sfc_info(sa, "already started");
- return 0;
- default:
- rc = EINVAL;
- goto fail_bad_state;
- }
-
- sa->state = SFC_ADAPTER_STARTING;
+ SFC_ASSERT(sa->state == SFC_ADAPTER_STARTING);
sfc_log_init(sa, "set resource limits");
rc = sfc_set_drv_limits(sa);
if (rc != 0)
goto fail_nic_init;
+ encp = efx_nic_cfg_get(sa->nic);
+ if (encp->enc_tunnel_encapsulations_supported != 0) {
+ sfc_log_init(sa, "apply tunnel config");
+ rc = efx_tunnel_reconfigure(sa->nic);
+ if (rc != 0)
+ goto fail_tunnel_reconfigure;
+ }
+
rc = sfc_intr_start(sa);
if (rc != 0)
goto fail_intr_start;
if (rc != 0)
goto fail_port_start;
- sa->state = SFC_ADAPTER_STARTED;
+ rc = sfc_rx_start(sa);
+ if (rc != 0)
+ goto fail_rx_start;
+
+ rc = sfc_tx_start(sa);
+ if (rc != 0)
+ goto fail_tx_start;
+
+ rc = sfc_flow_start(sa);
+ if (rc != 0)
+ goto fail_flows_insert;
+
sfc_log_init(sa, "done");
return 0;
+fail_flows_insert:
+ sfc_tx_stop(sa);
+
+fail_tx_start:
+ sfc_rx_stop(sa);
+
+fail_rx_start:
+ sfc_port_stop(sa);
+
fail_port_start:
sfc_ev_stop(sa);
sfc_intr_stop(sa);
fail_intr_start:
+fail_tunnel_reconfigure:
efx_nic_fini(sa->nic);
fail_nic_init:
fail_set_drv_limits:
+ sfc_log_init(sa, "failed %d", rc);
+ return rc;
+}
+
+int
+sfc_start(struct sfc_adapter *sa)
+{
+ unsigned int start_tries = 3;
+ int rc;
+
+ sfc_log_init(sa, "entry");
+
+ SFC_ASSERT(sfc_adapter_is_locked(sa));
+
+ switch (sa->state) {
+ case SFC_ADAPTER_CONFIGURED:
+ break;
+ case SFC_ADAPTER_STARTED:
+ sfc_info(sa, "already started");
+ return 0;
+ default:
+ rc = EINVAL;
+ goto fail_bad_state;
+ }
+
+ sa->state = SFC_ADAPTER_STARTING;
+
+ do {
+ rc = sfc_try_start(sa);
+ } while ((--start_tries > 0) &&
+ (rc == EIO || rc == EAGAIN || rc == ENOENT || rc == EINVAL));
+
+ if (rc != 0)
+ goto fail_try_start;
+
+ sa->state = SFC_ADAPTER_STARTED;
+ sfc_log_init(sa, "done");
+ return 0;
+
+fail_try_start:
sa->state = SFC_ADAPTER_CONFIGURED;
fail_bad_state:
sfc_log_init(sa, "failed %d", rc);
sa->state = SFC_ADAPTER_STOPPING;
+ sfc_flow_stop(sa);
+ sfc_tx_stop(sa);
+ sfc_rx_stop(sa);
sfc_port_stop(sa);
sfc_ev_stop(sa);
sfc_intr_stop(sa);
sfc_log_init(sa, "done");
}
+static int
+sfc_restart(struct sfc_adapter *sa)
+{
+ int rc;
+
+ SFC_ASSERT(sfc_adapter_is_locked(sa));
+
+ if (sa->state != SFC_ADAPTER_STARTED)
+ return EINVAL;
+
+ sfc_stop(sa);
+
+ rc = sfc_start(sa);
+ if (rc != 0)
+ sfc_err(sa, "restart failed");
+
+ return rc;
+}
+
+static void
+sfc_restart_if_required(void *arg)
+{
+ struct sfc_adapter *sa = arg;
+
+ /* If restart is scheduled, clear the flag and do it */
+ if (rte_atomic32_cmpset((volatile uint32_t *)&sa->restart_required,
+ 1, 0)) {
+ sfc_adapter_lock(sa);
+ if (sa->state == SFC_ADAPTER_STARTED)
+ (void)sfc_restart(sa);
+ sfc_adapter_unlock(sa);
+ }
+}
+
+void
+sfc_schedule_restart(struct sfc_adapter *sa)
+{
+ int rc;
+
+ /* Schedule restart alarm if it is not scheduled yet */
+ if (!rte_atomic32_test_and_set(&sa->restart_required))
+ return;
+
+ rc = rte_eal_alarm_set(1, sfc_restart_if_required, sa);
+ if (rc == -ENOTSUP)
+ sfc_warn(sa, "alarms are not supported, restart is pending");
+ else if (rc != 0)
+ sfc_err(sa, "cannot arm restart alarm (rc=%d)", rc);
+ else
+ sfc_info(sa, "restart scheduled");
+}
+
int
sfc_configure(struct sfc_adapter *sa)
{
SFC_ASSERT(sfc_adapter_is_locked(sa));
- SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
+ SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED ||
+ sa->state == SFC_ADAPTER_CONFIGURED);
sa->state = SFC_ADAPTER_CONFIGURING;
rc = sfc_check_conf(sa);
if (rc != 0)
goto fail_check_conf;
- rc = sfc_intr_init(sa);
+ rc = sfc_intr_configure(sa);
if (rc != 0)
- goto fail_intr_init;
+ goto fail_intr_configure;
- rc = sfc_ev_init(sa);
+ rc = sfc_port_configure(sa);
if (rc != 0)
- goto fail_ev_init;
+ goto fail_port_configure;
- rc = sfc_port_init(sa);
+ rc = sfc_rx_configure(sa);
if (rc != 0)
- goto fail_port_init;
+ goto fail_rx_configure;
- rc = sfc_rx_init(sa);
+ rc = sfc_tx_configure(sa);
if (rc != 0)
- goto fail_rx_init;
+ goto fail_tx_configure;
sa->state = SFC_ADAPTER_CONFIGURED;
sfc_log_init(sa, "done");
return 0;
-fail_rx_init:
- sfc_port_fini(sa);
+fail_tx_configure:
+ sfc_rx_close(sa);
-fail_port_init:
- sfc_ev_fini(sa);
+fail_rx_configure:
+ sfc_port_close(sa);
-fail_ev_init:
- sfc_intr_fini(sa);
+fail_port_configure:
+ sfc_intr_close(sa);
-fail_intr_init:
+fail_intr_configure:
fail_check_conf:
sa->state = SFC_ADAPTER_INITIALIZED;
sfc_log_init(sa, "failed %d", rc);
SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
sa->state = SFC_ADAPTER_CLOSING;
- sfc_rx_fini(sa);
- sfc_port_fini(sa);
- sfc_ev_fini(sa);
- sfc_intr_fini(sa);
+ sfc_tx_close(sa);
+ sfc_rx_close(sa);
+ sfc_port_close(sa);
+ sfc_intr_close(sa);
sa->state = SFC_ADAPTER_INITIALIZED;
sfc_log_init(sa, "done");
sfc_mem_bar_init(struct sfc_adapter *sa)
{
struct rte_eth_dev *eth_dev = sa->eth_dev;
- struct rte_pci_device *pci_dev = SFC_DEV_TO_PCI(eth_dev);
+ struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
efsys_bar_t *ebp = &sa->mem_bar;
unsigned int i;
struct rte_mem_resource *res;
memset(ebp, 0, sizeof(*ebp));
}
+#if EFSYS_OPT_RX_SCALE
+/*
+ * A fixed RSS key which has a property of being symmetric
+ * (symmetrical flows are distributed to the same CPU)
+ * and also known to give a uniform distribution
+ * (a good distribution of traffic between different CPUs)
+ */
+static const uint8_t default_rss_key[EFX_RSS_KEY_SIZE] = {
+ 0x6d, 0x5a, 0x6d, 0x5a, 0x6d, 0x5a, 0x6d, 0x5a,
+ 0x6d, 0x5a, 0x6d, 0x5a, 0x6d, 0x5a, 0x6d, 0x5a,
+ 0x6d, 0x5a, 0x6d, 0x5a, 0x6d, 0x5a, 0x6d, 0x5a,
+ 0x6d, 0x5a, 0x6d, 0x5a, 0x6d, 0x5a, 0x6d, 0x5a,
+ 0x6d, 0x5a, 0x6d, 0x5a, 0x6d, 0x5a, 0x6d, 0x5a,
+};
+#endif
+
+#if EFSYS_OPT_RX_SCALE
+static int
+sfc_set_rss_defaults(struct sfc_adapter *sa)
+{
+ int rc;
+
+ rc = efx_intr_init(sa->nic, sa->intr.type, NULL);
+ if (rc != 0)
+ goto fail_intr_init;
+
+ rc = efx_ev_init(sa->nic);
+ if (rc != 0)
+ goto fail_ev_init;
+
+ rc = efx_rx_init(sa->nic);
+ if (rc != 0)
+ goto fail_rx_init;
+
+ rc = efx_rx_scale_default_support_get(sa->nic, &sa->rss_support);
+ if (rc != 0)
+ goto fail_scale_support_get;
+
+ rc = efx_rx_hash_default_support_get(sa->nic, &sa->hash_support);
+ if (rc != 0)
+ goto fail_hash_support_get;
+
+ efx_rx_fini(sa->nic);
+ efx_ev_fini(sa->nic);
+ efx_intr_fini(sa->nic);
+
+ sa->rss_hash_types = sfc_rte_to_efx_hash_type(SFC_RSS_OFFLOADS);
+
+ rte_memcpy(sa->rss_key, default_rss_key, sizeof(sa->rss_key));
+
+ return 0;
+
+fail_hash_support_get:
+fail_scale_support_get:
+fail_rx_init:
+ efx_ev_fini(sa->nic);
+
+fail_ev_init:
+ efx_intr_fini(sa->nic);
+
+fail_intr_init:
+ return rc;
+}
+#else
+static int
+sfc_set_rss_defaults(__rte_unused struct sfc_adapter *sa)
+{
+ return 0;
+}
+#endif
+
int
sfc_attach(struct sfc_adapter *sa)
{
- struct rte_pci_device *pci_dev = SFC_DEV_TO_PCI(sa->eth_dev);
+ const efx_nic_cfg_t *encp;
+ efx_nic_t *enp = sa->nic;
+ int rc;
+
+ sfc_log_init(sa, "entry");
+
+ SFC_ASSERT(sfc_adapter_is_locked(sa));
+
+ efx_mcdi_new_epoch(enp);
+
+ sfc_log_init(sa, "reset nic");
+ rc = efx_nic_reset(enp);
+ if (rc != 0)
+ goto fail_nic_reset;
+
+ /*
+ * Probed NIC is sufficient for tunnel init.
+ * Initialize tunnel support to be able to use libefx
+ * efx_tunnel_config_udp_{add,remove}() in any state and
+ * efx_tunnel_reconfigure() on start up.
+ */
+ rc = efx_tunnel_init(enp);
+ if (rc != 0)
+ goto fail_tunnel_init;
+
+ encp = efx_nic_cfg_get(sa->nic);
+
+ if (sa->dp_tx->features & SFC_DP_TX_FEAT_TSO) {
+ sa->tso = encp->enc_fw_assisted_tso_v2_enabled;
+ if (!sa->tso)
+ sfc_warn(sa,
+ "TSO support isn't available on this adapter");
+ }
+
+ sfc_log_init(sa, "estimate resource limits");
+ rc = sfc_estimate_resource_limits(sa);
+ if (rc != 0)
+ goto fail_estimate_rsrc_limits;
+
+ sa->txq_max_entries = encp->enc_txq_max_ndescs;
+ SFC_ASSERT(rte_is_power_of_2(sa->txq_max_entries));
+
+ rc = sfc_intr_attach(sa);
+ if (rc != 0)
+ goto fail_intr_attach;
+
+ rc = sfc_ev_attach(sa);
+ if (rc != 0)
+ goto fail_ev_attach;
+
+ rc = sfc_port_attach(sa);
+ if (rc != 0)
+ goto fail_port_attach;
+
+ rc = sfc_set_rss_defaults(sa);
+ if (rc != 0)
+ goto fail_set_rss_defaults;
+
+ rc = sfc_filter_attach(sa);
+ if (rc != 0)
+ goto fail_filter_attach;
+
+ sfc_log_init(sa, "fini nic");
+ efx_nic_fini(enp);
+
+ sfc_flow_init(sa);
+
+ sa->state = SFC_ADAPTER_INITIALIZED;
+
+ sfc_log_init(sa, "done");
+ return 0;
+
+fail_filter_attach:
+fail_set_rss_defaults:
+ sfc_port_detach(sa);
+
+fail_port_attach:
+ sfc_ev_detach(sa);
+
+fail_ev_attach:
+ sfc_intr_detach(sa);
+
+fail_intr_attach:
+ efx_nic_fini(sa->nic);
+
+fail_estimate_rsrc_limits:
+fail_tunnel_init:
+ efx_tunnel_fini(sa->nic);
+
+fail_nic_reset:
+
+ sfc_log_init(sa, "failed %d", rc);
+ return rc;
+}
+
+void
+sfc_detach(struct sfc_adapter *sa)
+{
+ sfc_log_init(sa, "entry");
+
+ SFC_ASSERT(sfc_adapter_is_locked(sa));
+
+ sfc_flow_fini(sa);
+
+ sfc_filter_detach(sa);
+ sfc_port_detach(sa);
+ sfc_ev_detach(sa);
+ sfc_intr_detach(sa);
+ efx_tunnel_fini(sa->nic);
+
+ sa->state = SFC_ADAPTER_UNINITIALIZED;
+}
+
+int
+sfc_probe(struct sfc_adapter *sa)
+{
+ struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(sa->eth_dev);
efx_nic_t *enp;
int rc;
SFC_ASSERT(sfc_adapter_is_locked(sa));
sa->socket_id = rte_socket_id();
+ rte_atomic32_init(&sa->restart_required);
sfc_log_init(sa, "init mem bar");
rc = sfc_mem_bar_init(sa);
if (rc != 0)
goto fail_nic_probe;
- efx_mcdi_new_epoch(enp);
-
- sfc_log_init(sa, "reset nic");
- rc = efx_nic_reset(enp);
- if (rc != 0)
- goto fail_nic_reset;
-
- sfc_log_init(sa, "estimate resource limits");
- rc = sfc_estimate_resource_limits(sa);
- if (rc != 0)
- goto fail_estimate_rsrc_limits;
-
- rc = sfc_intr_attach(sa);
- if (rc != 0)
- goto fail_intr_attach;
-
- sfc_log_init(sa, "fini nic");
- efx_nic_fini(enp);
-
- sa->state = SFC_ADAPTER_INITIALIZED;
-
sfc_log_init(sa, "done");
return 0;
-fail_intr_attach:
-fail_estimate_rsrc_limits:
-fail_nic_reset:
- sfc_log_init(sa, "unprobe nic");
- efx_nic_unprobe(enp);
-
fail_nic_probe:
sfc_mcdi_fini(sa);
}
void
-sfc_detach(struct sfc_adapter *sa)
+sfc_unprobe(struct sfc_adapter *sa)
{
efx_nic_t *enp = sa->nic;
SFC_ASSERT(sfc_adapter_is_locked(sa));
- sfc_intr_detach(sa);
-
sfc_log_init(sa, "unprobe nic");
efx_nic_unprobe(enp);
sfc_mcdi_fini(sa);
+ /*
+ * Make sure there is no pending alarm to restart since we are
+ * going to free device private which is passed as the callback
+ * opaque data. A new alarm cannot be scheduled since MCDI is
+ * shut down.
+ */
+ rte_eal_alarm_cancel(sfc_restart_if_required, sa);
+
sfc_log_init(sa, "destroy nic");
sa->nic = NULL;
efx_nic_destroy(enp);
sfc_mem_bar_fini(sa);
+ sfc_flow_fini(sa);
sa->state = SFC_ADAPTER_UNINITIALIZED;
}
git.droids-corp.org / dpdk.git / blobdiff