#include "sfc.h"
#include "sfc_log.h"
+#include "sfc_ev.h"
+#include "sfc_rx.h"
+#include "sfc_tx.h"
int
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;
}
return rc;
}
+/*
+ * Find out maximum number of receive and transmit queues which could be
+ * advertised.
+ *
+ * NIC is kept initialized on success to allow other modules acquire
+ * defaults and capabilities.
+ */
+static int
+sfc_estimate_resource_limits(struct sfc_adapter *sa)
+{
+ const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
+ efx_drv_limits_t limits;
+ int rc;
+ uint32_t evq_allocated;
+ uint32_t rxq_allocated;
+ uint32_t txq_allocated;
+
+ memset(&limits, 0, sizeof(limits));
+
+ /* Request at least one Rx and Tx queue */
+ limits.edl_min_rxq_count = 1;
+ limits.edl_min_txq_count = 1;
+ /* Management event queue plus event queue for each Tx and Rx queue */
+ limits.edl_min_evq_count =
+ 1 + limits.edl_min_rxq_count + limits.edl_min_txq_count;
+
+ /* Divide by number of functions to guarantee that all functions
+ * will get promised resources
+ */
+ /* FIXME Divide by number of functions (not 2) below */
+ limits.edl_max_evq_count = encp->enc_evq_limit / 2;
+ SFC_ASSERT(limits.edl_max_evq_count >= limits.edl_min_rxq_count);
+
+ /* Split equally between receive and transmit */
+ limits.edl_max_rxq_count =
+ MIN(encp->enc_rxq_limit, (limits.edl_max_evq_count - 1) / 2);
+ SFC_ASSERT(limits.edl_max_rxq_count >= limits.edl_min_rxq_count);
+
+ 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
+ * driver to operate, and the maximum desired resources that the
+ * driver is capable of using.
+ */
+ efx_nic_set_drv_limits(sa->nic, &limits);
+
+ sfc_log_init(sa, "init nic");
+ rc = efx_nic_init(sa->nic);
+ if (rc != 0)
+ goto fail_nic_init;
+
+ /* Find resource dimensions assigned by firmware to this function */
+ rc = efx_nic_get_vi_pool(sa->nic, &evq_allocated, &rxq_allocated,
+ &txq_allocated);
+ if (rc != 0)
+ goto fail_get_vi_pool;
+
+ /* It still may allocate more than maximum, ensure limit */
+ evq_allocated = MIN(evq_allocated, limits.edl_max_evq_count);
+ rxq_allocated = MIN(rxq_allocated, limits.edl_max_rxq_count);
+ txq_allocated = MIN(txq_allocated, limits.edl_max_txq_count);
+
+ /* Subtract management EVQ not used for traffic */
+ SFC_ASSERT(evq_allocated > 0);
+ evq_allocated--;
+
+ /* Right now we use separate EVQ for Rx and Tx */
+ sa->rxq_max = MIN(rxq_allocated, evq_allocated / 2);
+ sa->txq_max = MIN(txq_allocated, evq_allocated - sa->rxq_max);
+
+ /* Keep NIC initialized */
+ return 0;
+
+fail_get_vi_pool:
+fail_nic_init:
+ efx_nic_fini(sa->nic);
+ return rc;
+}
+
+static int
+sfc_set_drv_limits(struct sfc_adapter *sa)
+{
+ const struct rte_eth_dev_data *data = sa->eth_dev->data;
+ efx_drv_limits_t lim;
+
+ memset(&lim, 0, sizeof(lim));
+
+ /* Limits are strict since take into account initial estimation */
+ lim.edl_min_evq_count = lim.edl_max_evq_count =
+ 1 + data->nb_rx_queues + data->nb_tx_queues;
+ lim.edl_min_rxq_count = lim.edl_max_rxq_count = data->nb_rx_queues;
+ lim.edl_min_txq_count = lim.edl_max_txq_count = data->nb_tx_queues;
+
+ return efx_nic_set_drv_limits(sa->nic, &lim);
+}
+
int
sfc_start(struct sfc_adapter *sa)
{
sa->state = SFC_ADAPTER_STARTING;
+ sfc_log_init(sa, "set resource limits");
+ rc = sfc_set_drv_limits(sa);
+ if (rc != 0)
+ goto fail_set_drv_limits;
+
sfc_log_init(sa, "init nic");
rc = efx_nic_init(sa->nic);
if (rc != 0)
goto fail_nic_init;
+ rc = sfc_intr_start(sa);
+ if (rc != 0)
+ goto fail_intr_start;
+
+ rc = sfc_ev_start(sa);
+ if (rc != 0)
+ goto fail_ev_start;
+
+ rc = sfc_port_start(sa);
+ if (rc != 0)
+ goto fail_port_start;
+
+ 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;
+
sa->state = SFC_ADAPTER_STARTED;
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);
+
+fail_ev_start:
+ sfc_intr_stop(sa);
+
+fail_intr_start:
+ efx_nic_fini(sa->nic);
+
fail_nic_init:
+fail_set_drv_limits:
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);
efx_nic_fini(sa->nic);
sa->state = SFC_ADAPTER_CONFIGURED;
if (rc != 0)
goto fail_check_conf;
+ rc = sfc_intr_init(sa);
+ if (rc != 0)
+ goto fail_intr_init;
+
+ rc = sfc_ev_init(sa);
+ if (rc != 0)
+ goto fail_ev_init;
+
+ rc = sfc_port_init(sa);
+ if (rc != 0)
+ goto fail_port_init;
+
+ rc = sfc_rx_init(sa);
+ if (rc != 0)
+ goto fail_rx_init;
+
+ rc = sfc_tx_init(sa);
+ if (rc != 0)
+ goto fail_tx_init;
+
sa->state = SFC_ADAPTER_CONFIGURED;
sfc_log_init(sa, "done");
return 0;
+fail_tx_init:
+ sfc_rx_fini(sa);
+
+fail_rx_init:
+ sfc_port_fini(sa);
+
+fail_port_init:
+ sfc_ev_fini(sa);
+
+fail_ev_init:
+ sfc_intr_fini(sa);
+
+fail_intr_init:
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_tx_fini(sa);
+ sfc_rx_fini(sa);
+ sfc_port_fini(sa);
+ sfc_ev_fini(sa);
+ sfc_intr_fini(sa);
+
sa->state = SFC_ADAPTER_INITIALIZED;
sfc_log_init(sa, "done");
}
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[SFC_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
+
+static int
+sfc_set_rss_defaults(struct sfc_adapter *sa)
+{
+#if EFSYS_OPT_RX_SCALE
+ 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_support_get(sa->nic, &sa->rss_support);
+ if (rc != 0)
+ goto fail_scale_support_get;
+
+ rc = efx_rx_hash_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
+ 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;
int rc;
if (rc != 0)
goto fail_nic_reset;
- /* Initialize NIC to double-check hardware */
- sfc_log_init(sa, "init nic");
- rc = efx_nic_init(enp);
+ encp = efx_nic_cfg_get(sa->nic);
+
+ 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_nic_init;
+ 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;
+
+ efx_phy_adv_cap_get(sa->nic, EFX_PHY_CAP_PERM,
+ &sa->port.phy_adv_cap_mask);
+
+ 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);
- sa->rxq_max = 1;
- sa->txq_max = 1;
+ sfc_flow_init(sa);
sa->state = SFC_ADAPTER_INITIALIZED;
sfc_log_init(sa, "done");
return 0;
-fail_nic_init:
+fail_filter_attach:
+fail_set_rss_defaults:
+ sfc_intr_detach(sa);
+
+fail_intr_attach:
+ efx_nic_fini(sa->nic);
+
+fail_estimate_rsrc_limits:
fail_nic_reset:
sfc_log_init(sa, "unprobe nic");
efx_nic_unprobe(enp);
SFC_ASSERT(sfc_adapter_is_locked(sa));
+ sfc_filter_detach(sa);
+
+ sfc_intr_detach(sa);
+
sfc_log_init(sa, "unprobe nic");
efx_nic_unprobe(enp);
sfc_mem_bar_fini(sa);
+ sfc_flow_fini(sa);
sa->state = SFC_ADAPTER_UNINITIALIZED;
}
git.droids-corp.org / dpdk.git / blobdiff