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
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);
sa->state = SFC_ADAPTER_STOPPING;
+ sfc_flow_stop(sa);
sfc_tx_stop(sa);
sfc_rx_stop(sa);
sfc_port_stop(sa);
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)
{
if (rc != 0)
goto fail_nic_reset;
+ 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_estimate_rsrc_limits;
- encp = efx_nic_cfg_get(sa->nic);
sa->txq_max_entries = encp->enc_txq_max_ndescs;
SFC_ASSERT(rte_is_power_of_2(sa->txq_max_entries));
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);
+ sfc_flow_init(sa);
+
sa->state = SFC_ADAPTER_INITIALIZED;
sfc_log_init(sa, "done");
return 0;
+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");
SFC_ASSERT(sfc_adapter_is_locked(sa));
+ sfc_filter_detach(sa);
+
sfc_intr_detach(sa);
sfc_log_init(sa, "unprobe nic");
sfc_mem_bar_fini(sa);
+ sfc_flow_fini(sa);
sa->state = SFC_ADAPTER_UNINITIALIZED;
}