New upstream version 18.08
[deb_dpdk.git] / drivers / net / sfc / sfc.c
index ac5fdca..6690053 100644 (file)
@@ -20,6 +20,8 @@
 #include "sfc_ev.h"
 #include "sfc_rx.h"
 #include "sfc_tx.h"
+#include "sfc_kvargs.h"
+#include "sfc_tweak.h"
 
 
 int
@@ -81,14 +83,23 @@ sfc_phy_cap_from_link_speeds(uint32_t speeds)
                        phy_caps |=
                                (1 << EFX_PHY_CAP_1000FDX) |
                                (1 << EFX_PHY_CAP_10000FDX) |
-                               (1 << EFX_PHY_CAP_40000FDX);
+                               (1 << EFX_PHY_CAP_25000FDX) |
+                               (1 << EFX_PHY_CAP_40000FDX) |
+                               (1 << EFX_PHY_CAP_50000FDX) |
+                               (1 << EFX_PHY_CAP_100000FDX);
        }
        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_25G)
+               phy_caps |= (1 << EFX_PHY_CAP_25000FDX);
        if (speeds & ETH_LINK_SPEED_40G)
                phy_caps |= (1 << EFX_PHY_CAP_40000FDX);
+       if (speeds & ETH_LINK_SPEED_50G)
+               phy_caps |= (1 << EFX_PHY_CAP_50000FDX);
+       if (speeds & ETH_LINK_SPEED_100G)
+               phy_caps |= (1 << EFX_PHY_CAP_100000FDX);
 
        return phy_caps;
 }
@@ -113,10 +124,12 @@ sfc_check_conf(struct sfc_adapter *sa)
                rc = EINVAL;
        }
 
+#if !EFSYS_OPT_LOOPBACK
        if (conf->lpbk_mode != 0) {
                sfc_err(sa, "Loopback not supported");
                rc = EINVAL;
        }
+#endif
 
        if (conf->dcb_capability_en != 0) {
                sfc_err(sa, "Priority-based flow control not supported");
@@ -249,6 +262,58 @@ sfc_set_drv_limits(struct sfc_adapter *sa)
        return efx_nic_set_drv_limits(sa->nic, &lim);
 }
 
+static int
+sfc_set_fw_subvariant(struct sfc_adapter *sa)
+{
+       const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
+       uint64_t tx_offloads = sa->eth_dev->data->dev_conf.txmode.offloads;
+       unsigned int txq_index;
+       efx_nic_fw_subvariant_t req_fw_subvariant;
+       efx_nic_fw_subvariant_t cur_fw_subvariant;
+       int rc;
+
+       if (!encp->enc_fw_subvariant_no_tx_csum_supported) {
+               sfc_info(sa, "no-Tx-checksum subvariant not supported");
+               return 0;
+       }
+
+       for (txq_index = 0; txq_index < sa->txq_count; ++txq_index) {
+               struct sfc_txq_info *txq_info = &sa->txq_info[txq_index];
+
+               if (txq_info->txq != NULL)
+                       tx_offloads |= txq_info->txq->offloads;
+       }
+
+       if (tx_offloads & (DEV_TX_OFFLOAD_IPV4_CKSUM |
+                          DEV_TX_OFFLOAD_TCP_CKSUM |
+                          DEV_TX_OFFLOAD_UDP_CKSUM |
+                          DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM))
+               req_fw_subvariant = EFX_NIC_FW_SUBVARIANT_DEFAULT;
+       else
+               req_fw_subvariant = EFX_NIC_FW_SUBVARIANT_NO_TX_CSUM;
+
+       rc = efx_nic_get_fw_subvariant(sa->nic, &cur_fw_subvariant);
+       if (rc != 0) {
+               sfc_err(sa, "failed to get FW subvariant: %d", rc);
+               return rc;
+       }
+       sfc_info(sa, "FW subvariant is %u vs required %u",
+                cur_fw_subvariant, req_fw_subvariant);
+
+       if (cur_fw_subvariant == req_fw_subvariant)
+               return 0;
+
+       rc = efx_nic_set_fw_subvariant(sa->nic, req_fw_subvariant);
+       if (rc != 0) {
+               sfc_err(sa, "failed to set FW subvariant %u: %d",
+                       req_fw_subvariant, rc);
+               return rc;
+       }
+       sfc_info(sa, "FW subvariant set to %u", req_fw_subvariant);
+
+       return 0;
+}
+
 static int
 sfc_try_start(struct sfc_adapter *sa)
 {
@@ -260,6 +325,11 @@ sfc_try_start(struct sfc_adapter *sa)
        SFC_ASSERT(sfc_adapter_is_locked(sa));
        SFC_ASSERT(sa->state == SFC_ADAPTER_STARTING);
 
+       sfc_log_init(sa, "set FW subvariant");
+       rc = sfc_set_fw_subvariant(sa);
+       if (rc != 0)
+               goto fail_set_fw_subvariant;
+
        sfc_log_init(sa, "set resource limits");
        rc = sfc_set_drv_limits(sa);
        if (rc != 0)
@@ -326,6 +396,7 @@ fail_tunnel_reconfigure:
 
 fail_nic_init:
 fail_set_drv_limits:
+fail_set_fw_subvariant:
        sfc_log_init(sa, "failed %d", rc);
        return rc;
 }
@@ -344,7 +415,7 @@ sfc_start(struct sfc_adapter *sa)
        case SFC_ADAPTER_CONFIGURED:
                break;
        case SFC_ADAPTER_STARTED:
-               sfc_info(sa, "already started");
+               sfc_notice(sa, "already started");
                return 0;
        default:
                rc = EINVAL;
@@ -383,7 +454,7 @@ sfc_stop(struct sfc_adapter *sa)
        case SFC_ADAPTER_STARTED:
                break;
        case SFC_ADAPTER_CONFIGURED:
-               sfc_info(sa, "already stopped");
+               sfc_notice(sa, "already stopped");
                return;
        default:
                sfc_err(sa, "stop in unexpected state %u", sa->state);
@@ -454,7 +525,7 @@ sfc_schedule_restart(struct sfc_adapter *sa)
        else if (rc != 0)
                sfc_err(sa, "cannot arm restart alarm (rc=%d)", rc);
        else
-               sfc_info(sa, "restart scheduled");
+               sfc_notice(sa, "restart scheduled");
 }
 
 int
@@ -530,27 +601,18 @@ sfc_close(struct sfc_adapter *sa)
 }
 
 static int
-sfc_mem_bar_init(struct sfc_adapter *sa)
+sfc_mem_bar_init(struct sfc_adapter *sa, unsigned int membar)
 {
        struct rte_eth_dev *eth_dev = sa->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;
-
-       for (i = 0; i < RTE_DIM(pci_dev->mem_resource); i++) {
-               res = &pci_dev->mem_resource[i];
-               if ((res->len != 0) && (res->phys_addr != 0)) {
-                       /* Found first memory BAR */
-                       SFC_BAR_LOCK_INIT(ebp, eth_dev->data->name);
-                       ebp->esb_rid = i;
-                       ebp->esb_dev = pci_dev;
-                       ebp->esb_base = res->addr;
-                       return 0;
-               }
-       }
+       struct rte_mem_resource *res = &pci_dev->mem_resource[membar];
 
-       return EFAULT;
+       SFC_BAR_LOCK_INIT(ebp, eth_dev->data->name);
+       ebp->esb_rid = membar;
+       ebp->esb_dev = pci_dev;
+       ebp->esb_base = res->addr;
+       return 0;
 }
 
 static void
@@ -562,7 +624,6 @@ sfc_mem_bar_fini(struct sfc_adapter *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)
@@ -576,12 +637,11 @@ 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,
 };
-#endif
 
-#if EFSYS_OPT_RX_SCALE
 static int
-sfc_set_rss_defaults(struct sfc_adapter *sa)
+sfc_rss_attach(struct sfc_adapter *sa)
 {
+       struct sfc_rss *rss = &sa->rss;
        int rc;
 
        rc = efx_intr_init(sa->nic, sa->intr.type, NULL);
@@ -596,26 +656,31 @@ sfc_set_rss_defaults(struct sfc_adapter *sa)
        if (rc != 0)
                goto fail_rx_init;
 
-       rc = efx_rx_scale_default_support_get(sa->nic, &sa->rss_support);
+       rc = efx_rx_scale_default_support_get(sa->nic, &rss->context_type);
        if (rc != 0)
                goto fail_scale_support_get;
 
-       rc = efx_rx_hash_default_support_get(sa->nic, &sa->hash_support);
+       rc = efx_rx_hash_default_support_get(sa->nic, &rss->hash_support);
        if (rc != 0)
                goto fail_hash_support_get;
 
+       rc = sfc_rx_hash_init(sa);
+       if (rc != 0)
+               goto fail_rx_hash_init;
+
        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));
+       rte_memcpy(rss->key, default_rss_key, sizeof(rss->key));
 
        return 0;
 
+fail_rx_hash_init:
 fail_hash_support_get:
 fail_scale_support_get:
+       efx_rx_fini(sa->nic);
+
 fail_rx_init:
        efx_ev_fini(sa->nic);
 
@@ -625,13 +690,12 @@ fail_ev_init:
 fail_intr_init:
        return rc;
 }
-#else
-static int
-sfc_set_rss_defaults(__rte_unused struct sfc_adapter *sa)
+
+static void
+sfc_rss_detach(struct sfc_adapter *sa)
 {
-       return 0;
+       sfc_rx_hash_fini(sa);
 }
-#endif
 
 int
 sfc_attach(struct sfc_adapter *sa)
@@ -690,9 +754,9 @@ sfc_attach(struct sfc_adapter *sa)
        if (rc != 0)
                goto fail_port_attach;
 
-       rc = sfc_set_rss_defaults(sa);
+       rc = sfc_rss_attach(sa);
        if (rc != 0)
-               goto fail_set_rss_defaults;
+               goto fail_rss_attach;
 
        rc = sfc_filter_attach(sa);
        if (rc != 0)
@@ -709,7 +773,9 @@ sfc_attach(struct sfc_adapter *sa)
        return 0;
 
 fail_filter_attach:
-fail_set_rss_defaults:
+       sfc_rss_detach(sa);
+
+fail_rss_attach:
        sfc_port_detach(sa);
 
 fail_port_attach:
@@ -741,6 +807,7 @@ sfc_detach(struct sfc_adapter *sa)
        sfc_flow_fini(sa);
 
        sfc_filter_detach(sa);
+       sfc_rss_detach(sa);
        sfc_port_detach(sa);
        sfc_ev_detach(sa);
        sfc_intr_detach(sa);
@@ -749,10 +816,169 @@ sfc_detach(struct sfc_adapter *sa)
        sa->state = SFC_ADAPTER_UNINITIALIZED;
 }
 
+static int
+sfc_kvarg_fv_variant_handler(__rte_unused const char *key,
+                            const char *value_str, void *opaque)
+{
+       uint32_t *value = opaque;
+
+       if (strcasecmp(value_str, SFC_KVARG_FW_VARIANT_DONT_CARE) == 0)
+               *value = EFX_FW_VARIANT_DONT_CARE;
+       else if (strcasecmp(value_str, SFC_KVARG_FW_VARIANT_FULL_FEATURED) == 0)
+               *value = EFX_FW_VARIANT_FULL_FEATURED;
+       else if (strcasecmp(value_str, SFC_KVARG_FW_VARIANT_LOW_LATENCY) == 0)
+               *value = EFX_FW_VARIANT_LOW_LATENCY;
+       else if (strcasecmp(value_str, SFC_KVARG_FW_VARIANT_PACKED_STREAM) == 0)
+               *value = EFX_FW_VARIANT_PACKED_STREAM;
+       else if (strcasecmp(value_str, SFC_KVARG_FW_VARIANT_DPDK) == 0)
+               *value = EFX_FW_VARIANT_DPDK;
+       else
+               return -EINVAL;
+
+       return 0;
+}
+
+static int
+sfc_get_fw_variant(struct sfc_adapter *sa, efx_fw_variant_t *efv)
+{
+       efx_nic_fw_info_t enfi;
+       int rc;
+
+       rc = efx_nic_get_fw_version(sa->nic, &enfi);
+       if (rc != 0)
+               return rc;
+       else if (!enfi.enfi_dpcpu_fw_ids_valid)
+               return ENOTSUP;
+
+       /*
+        * Firmware variant can be uniquely identified by the RxDPCPU
+        * firmware id
+        */
+       switch (enfi.enfi_rx_dpcpu_fw_id) {
+       case EFX_RXDP_FULL_FEATURED_FW_ID:
+               *efv = EFX_FW_VARIANT_FULL_FEATURED;
+               break;
+
+       case EFX_RXDP_LOW_LATENCY_FW_ID:
+               *efv = EFX_FW_VARIANT_LOW_LATENCY;
+               break;
+
+       case EFX_RXDP_PACKED_STREAM_FW_ID:
+               *efv = EFX_FW_VARIANT_PACKED_STREAM;
+               break;
+
+       case EFX_RXDP_DPDK_FW_ID:
+               *efv = EFX_FW_VARIANT_DPDK;
+               break;
+
+       default:
+               /*
+                * Other firmware variants are not considered, since they are
+                * not supported in the device parameters
+                */
+               *efv = EFX_FW_VARIANT_DONT_CARE;
+               break;
+       }
+
+       return 0;
+}
+
+static const char *
+sfc_fw_variant2str(efx_fw_variant_t efv)
+{
+       switch (efv) {
+       case EFX_RXDP_FULL_FEATURED_FW_ID:
+               return SFC_KVARG_FW_VARIANT_FULL_FEATURED;
+       case EFX_RXDP_LOW_LATENCY_FW_ID:
+               return SFC_KVARG_FW_VARIANT_LOW_LATENCY;
+       case EFX_RXDP_PACKED_STREAM_FW_ID:
+               return SFC_KVARG_FW_VARIANT_PACKED_STREAM;
+       case EFX_RXDP_DPDK_FW_ID:
+               return SFC_KVARG_FW_VARIANT_DPDK;
+       default:
+               return "unknown";
+       }
+}
+
+static int
+sfc_kvarg_rxd_wait_timeout_ns(struct sfc_adapter *sa)
+{
+       int rc;
+       long value;
+
+       value = SFC_RXD_WAIT_TIMEOUT_NS_DEF;
+
+       rc = sfc_kvargs_process(sa, SFC_KVARG_RXD_WAIT_TIMEOUT_NS,
+                               sfc_kvarg_long_handler, &value);
+       if (rc != 0)
+               return rc;
+
+       if (value < 0 ||
+           (unsigned long)value > EFX_RXQ_ES_SUPER_BUFFER_HOL_BLOCK_MAX) {
+               sfc_err(sa, "wrong '" SFC_KVARG_RXD_WAIT_TIMEOUT_NS "' "
+                           "was set (%ld);", value);
+               sfc_err(sa, "it must not be less than 0 or greater than %u",
+                           EFX_RXQ_ES_SUPER_BUFFER_HOL_BLOCK_MAX);
+               return EINVAL;
+       }
+
+       sa->rxd_wait_timeout_ns = value;
+       return 0;
+}
+
+static int
+sfc_nic_probe(struct sfc_adapter *sa)
+{
+       efx_nic_t *enp = sa->nic;
+       efx_fw_variant_t preferred_efv;
+       efx_fw_variant_t efv;
+       int rc;
+
+       preferred_efv = EFX_FW_VARIANT_DONT_CARE;
+       rc = sfc_kvargs_process(sa, SFC_KVARG_FW_VARIANT,
+                               sfc_kvarg_fv_variant_handler,
+                               &preferred_efv);
+       if (rc != 0) {
+               sfc_err(sa, "invalid %s parameter value", SFC_KVARG_FW_VARIANT);
+               return rc;
+       }
+
+       rc = sfc_kvarg_rxd_wait_timeout_ns(sa);
+       if (rc != 0)
+               return rc;
+
+       rc = efx_nic_probe(enp, preferred_efv);
+       if (rc == EACCES) {
+               /* Unprivileged functions cannot set FW variant */
+               rc = efx_nic_probe(enp, EFX_FW_VARIANT_DONT_CARE);
+       }
+       if (rc != 0)
+               return rc;
+
+       rc = sfc_get_fw_variant(sa, &efv);
+       if (rc == ENOTSUP) {
+               sfc_warn(sa, "FW variant can not be obtained");
+               return 0;
+       }
+       if (rc != 0)
+               return rc;
+
+       /* Check that firmware variant was changed to the requested one */
+       if (preferred_efv != EFX_FW_VARIANT_DONT_CARE && preferred_efv != efv) {
+               sfc_warn(sa, "FW variant has not changed to the requested %s",
+                        sfc_fw_variant2str(preferred_efv));
+       }
+
+       sfc_notice(sa, "running FW variant is %s", sfc_fw_variant2str(efv));
+
+       return 0;
+}
+
 int
 sfc_probe(struct sfc_adapter *sa)
 {
        struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(sa->eth_dev);
+       unsigned int membar;
        efx_nic_t *enp;
        int rc;
 
@@ -763,17 +989,17 @@ sfc_probe(struct sfc_adapter *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_mem_bar_init;
-
        sfc_log_init(sa, "get family");
        rc = efx_family(pci_dev->id.vendor_id, pci_dev->id.device_id,
-                       &sa->family);
+                       &sa->family, &membar);
        if (rc != 0)
                goto fail_family;
-       sfc_log_init(sa, "family is %u", sa->family);
+       sfc_log_init(sa, "family is %u, membar is %u", sa->family, membar);
+
+       sfc_log_init(sa, "init mem bar");
+       rc = sfc_mem_bar_init(sa, membar);
+       if (rc != 0)
+               goto fail_mem_bar_init;
 
        sfc_log_init(sa, "create nic");
        rte_spinlock_init(&sa->nic_lock);
@@ -788,7 +1014,7 @@ sfc_probe(struct sfc_adapter *sa)
                goto fail_mcdi_init;
 
        sfc_log_init(sa, "probe nic");
-       rc = efx_nic_probe(enp);
+       rc = sfc_nic_probe(sa);
        if (rc != 0)
                goto fail_nic_probe;
 
@@ -804,10 +1030,10 @@ fail_mcdi_init:
        efx_nic_destroy(enp);
 
 fail_nic_create:
-fail_family:
        sfc_mem_bar_fini(sa);
 
 fail_mem_bar_init:
+fail_family:
        sfc_log_init(sa, "failed %d", rc);
        return rc;
 }
@@ -843,3 +1069,35 @@ sfc_unprobe(struct sfc_adapter *sa)
        sfc_flow_fini(sa);
        sa->state = SFC_ADAPTER_UNINITIALIZED;
 }
+
+uint32_t
+sfc_register_logtype(struct sfc_adapter *sa, const char *lt_prefix_str,
+                    uint32_t ll_default)
+{
+       size_t lt_prefix_str_size = strlen(lt_prefix_str);
+       size_t lt_str_size_max;
+       char *lt_str = NULL;
+       int ret;
+
+       if (SIZE_MAX - PCI_PRI_STR_SIZE - 1 > lt_prefix_str_size) {
+               ++lt_prefix_str_size; /* Reserve space for prefix separator */
+               lt_str_size_max = lt_prefix_str_size + PCI_PRI_STR_SIZE + 1;
+       } else {
+               return RTE_LOGTYPE_PMD;
+       }
+
+       lt_str = rte_zmalloc("logtype_str", lt_str_size_max, 0);
+       if (lt_str == NULL)
+               return RTE_LOGTYPE_PMD;
+
+       strncpy(lt_str, lt_prefix_str, lt_prefix_str_size);
+       lt_str[lt_prefix_str_size - 1] = '.';
+       rte_pci_device_name(&sa->pci_addr, lt_str + lt_prefix_str_size,
+                           lt_str_size_max - lt_prefix_str_size);
+       lt_str[lt_str_size_max - 1] = '\0';
+
+       ret = rte_log_register_type_and_pick_level(lt_str, ll_default);
+       rte_free(lt_str);
+
+       return (ret < 0) ? RTE_LOGTYPE_PMD : ret;
+}