/* SPDX-License-Identifier: BSD-3-Clause
*
- * Copyright (c) 2016-2018 Solarflare Communications Inc.
- * All rights reserved.
+ * Copyright(c) 2019-2020 Xilinx, Inc.
+ * Copyright(c) 2016-2019 Solarflare Communications Inc.
*
* This software was jointly developed between OKTET Labs (under contract
* for Solarflare) and Solarflare Communications, Inc.
*/
#define SFC_TX_QFLUSH_POLL_ATTEMPTS (2000)
-uint64_t
-sfc_tx_get_dev_offload_caps(struct sfc_adapter *sa)
+static uint64_t
+sfc_tx_get_offload_mask(struct sfc_adapter *sa)
{
const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
- uint64_t caps = 0;
+ uint64_t no_caps = 0;
- if ((sa->priv.dp_tx->features & SFC_DP_TX_FEAT_VLAN_INSERT) &&
- encp->enc_hw_tx_insert_vlan_enabled)
- caps |= DEV_TX_OFFLOAD_VLAN_INSERT;
+ if (!encp->enc_hw_tx_insert_vlan_enabled)
+ no_caps |= DEV_TX_OFFLOAD_VLAN_INSERT;
- if (sa->priv.dp_tx->features & SFC_DP_TX_FEAT_MULTI_SEG)
- caps |= DEV_TX_OFFLOAD_MULTI_SEGS;
+ if (!encp->enc_tunnel_encapsulations_supported)
+ no_caps |= DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM;
- if ((~sa->priv.dp_tx->features & SFC_DP_TX_FEAT_MULTI_POOL) &&
- (~sa->priv.dp_tx->features & SFC_DP_TX_FEAT_REFCNT))
- caps |= DEV_TX_OFFLOAD_MBUF_FAST_FREE;
+ if (!sa->tso)
+ no_caps |= DEV_TX_OFFLOAD_TCP_TSO;
- return caps;
+ if (!sa->tso_encap)
+ no_caps |= (DEV_TX_OFFLOAD_VXLAN_TNL_TSO |
+ DEV_TX_OFFLOAD_GENEVE_TNL_TSO);
+
+ return ~no_caps;
}
uint64_t
-sfc_tx_get_queue_offload_caps(struct sfc_adapter *sa)
+sfc_tx_get_dev_offload_caps(struct sfc_adapter *sa)
{
- const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
- uint64_t caps = 0;
-
- caps |= DEV_TX_OFFLOAD_IPV4_CKSUM;
- caps |= DEV_TX_OFFLOAD_UDP_CKSUM;
- caps |= DEV_TX_OFFLOAD_TCP_CKSUM;
-
- if (encp->enc_tunnel_encapsulations_supported)
- caps |= DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM;
-
- if (sa->tso)
- caps |= DEV_TX_OFFLOAD_TCP_TSO;
+ return sa->priv.dp_tx->dev_offload_capa & sfc_tx_get_offload_mask(sa);
+}
- return caps;
+uint64_t
+sfc_tx_get_queue_offload_caps(struct sfc_adapter *sa)
+{
+ return sa->priv.dp_tx->queue_offload_capa & sfc_tx_get_offload_mask(sa);
}
static int
int rc = 0;
struct sfc_dp_tx_qcreate_info info;
uint64_t offloads;
+ struct sfc_dp_tx_hw_limits hw_limits;
sfc_log_init(sa, "TxQ = %u", sw_index);
- rc = sa->priv.dp_tx->qsize_up_rings(nb_tx_desc, &txq_entries,
- &evq_entries, &txq_max_fill_level);
+ memset(&hw_limits, 0, sizeof(hw_limits));
+ hw_limits.txq_max_entries = sa->txq_max_entries;
+ hw_limits.txq_min_entries = sa->txq_min_entries;
+
+ rc = sa->priv.dp_tx->qsize_up_rings(nb_tx_desc, &hw_limits,
+ &txq_entries, &evq_entries,
+ &txq_max_fill_level);
if (rc != 0)
goto fail_size_up_rings;
- SFC_ASSERT(txq_entries >= EFX_TXQ_MINNDESCS);
+ SFC_ASSERT(txq_entries >= sa->txq_min_entries);
SFC_ASSERT(txq_entries <= sa->txq_max_entries);
SFC_ASSERT(txq_entries >= nb_tx_desc);
SFC_ASSERT(txq_max_fill_level <= nb_tx_desc);
if (rc != 0)
goto fail_bad_conf;
- SFC_ASSERT(sw_index < sa->txq_count);
- txq_info = &sa->txq_info[sw_index];
+ SFC_ASSERT(sw_index < sfc_sa2shared(sa)->txq_count);
+ txq_info = &sfc_sa2shared(sa)->txq_info[sw_index];
txq_info->entries = txq_entries;
SFC_TX_DEFAULT_FREE_THRESH;
txq_info->offloads = offloads;
- rc = sfc_dma_alloc(sa, "txq", sw_index, EFX_TXQ_SIZE(txq_info->entries),
+ rc = sfc_dma_alloc(sa, "txq", sw_index,
+ efx_txq_size(sa->nic, txq_info->entries),
socket_id, &txq->mem);
if (rc != 0)
goto fail_dma_alloc;
info.vi_window_shift = encp->enc_vi_window_shift;
info.tso_tcp_header_offset_limit =
encp->enc_tx_tso_tcp_header_offset_limit;
+ info.tso_max_nb_header_descs =
+ RTE_MIN(encp->enc_tx_tso_max_header_ndescs,
+ (uint32_t)UINT16_MAX);
+ info.tso_max_header_len =
+ RTE_MIN(encp->enc_tx_tso_max_header_length,
+ (uint32_t)UINT16_MAX);
+ info.tso_max_nb_payload_descs =
+ RTE_MIN(encp->enc_tx_tso_max_payload_ndescs,
+ (uint32_t)UINT16_MAX);
+ info.tso_max_payload_len = encp->enc_tx_tso_max_payload_length;
+ info.tso_max_nb_outgoing_frames = encp->enc_tx_tso_max_nframes;
rc = sa->priv.dp_tx->qcreate(sa->eth_dev->data->port_id, sw_index,
&RTE_ETH_DEV_TO_PCI(sa->eth_dev)->addr,
sfc_log_init(sa, "TxQ = %u", sw_index);
- SFC_ASSERT(sw_index < sa->txq_count);
+ SFC_ASSERT(sw_index < sfc_sa2shared(sa)->txq_count);
sa->eth_dev->data->tx_queues[sw_index] = NULL;
- txq_info = &sa->txq_info[sw_index];
+ txq_info = &sfc_sa2shared(sa)->txq_info[sw_index];
SFC_ASSERT(txq_info->state == SFC_TXQ_INITIALIZED);
static void
sfc_tx_fini_queues(struct sfc_adapter *sa, unsigned int nb_tx_queues)
{
+ struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
int sw_index;
- SFC_ASSERT(nb_tx_queues <= sa->txq_count);
+ SFC_ASSERT(nb_tx_queues <= sas->txq_count);
- sw_index = sa->txq_count;
+ sw_index = sas->txq_count;
while (--sw_index >= (int)nb_tx_queues) {
- if (sa->txq_info[sw_index].state & SFC_TXQ_INITIALIZED)
+ if (sas->txq_info[sw_index].state & SFC_TXQ_INITIALIZED)
sfc_tx_qfini(sa, sw_index);
}
- sa->txq_count = nb_tx_queues;
+ sas->txq_count = nb_tx_queues;
}
int
sfc_tx_configure(struct sfc_adapter *sa)
{
+ struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
const struct rte_eth_conf *dev_conf = &sa->eth_dev->data->dev_conf;
const unsigned int nb_tx_queues = sa->eth_dev->data->nb_tx_queues;
int rc = 0;
sfc_log_init(sa, "nb_tx_queues=%u (old %u)",
- nb_tx_queues, sa->txq_count);
+ nb_tx_queues, sas->txq_count);
/*
* The datapath implementation assumes absence of boundary
if (rc != 0)
goto fail_check_mode;
- if (nb_tx_queues == sa->txq_count)
+ if (nb_tx_queues == sas->txq_count)
goto done;
- if (sa->txq_info == NULL) {
- sa->txq_info = rte_calloc_socket("sfc-txqs", nb_tx_queues,
- sizeof(sa->txq_info[0]), 0,
- sa->socket_id);
- if (sa->txq_info == NULL)
+ if (sas->txq_info == NULL) {
+ sas->txq_info = rte_calloc_socket("sfc-txqs", nb_tx_queues,
+ sizeof(sas->txq_info[0]), 0,
+ sa->socket_id);
+ if (sas->txq_info == NULL)
goto fail_txqs_alloc;
/*
struct sfc_txq_info *new_txq_info;
struct sfc_txq *new_txq_ctrl;
- if (nb_tx_queues < sa->txq_count)
+ if (nb_tx_queues < sas->txq_count)
sfc_tx_fini_queues(sa, nb_tx_queues);
new_txq_info =
- rte_realloc(sa->txq_info,
- nb_tx_queues * sizeof(sa->txq_info[0]), 0);
+ rte_realloc(sas->txq_info,
+ nb_tx_queues * sizeof(sas->txq_info[0]), 0);
if (new_txq_info == NULL && nb_tx_queues > 0)
goto fail_txqs_realloc;
if (new_txq_ctrl == NULL && nb_tx_queues > 0)
goto fail_txqs_ctrl_realloc;
- sa->txq_info = new_txq_info;
+ sas->txq_info = new_txq_info;
sa->txq_ctrl = new_txq_ctrl;
- if (nb_tx_queues > sa->txq_count) {
- memset(&sa->txq_info[sa->txq_count], 0,
- (nb_tx_queues - sa->txq_count) *
- sizeof(sa->txq_info[0]));
- memset(&sa->txq_ctrl[sa->txq_count], 0,
- (nb_tx_queues - sa->txq_count) *
+ if (nb_tx_queues > sas->txq_count) {
+ memset(&sas->txq_info[sas->txq_count], 0,
+ (nb_tx_queues - sas->txq_count) *
+ sizeof(sas->txq_info[0]));
+ memset(&sa->txq_ctrl[sas->txq_count], 0,
+ (nb_tx_queues - sas->txq_count) *
sizeof(sa->txq_ctrl[0]));
}
}
- while (sa->txq_count < nb_tx_queues) {
- rc = sfc_tx_qinit_info(sa, sa->txq_count);
+ while (sas->txq_count < nb_tx_queues) {
+ rc = sfc_tx_qinit_info(sa, sas->txq_count);
if (rc != 0)
goto fail_tx_qinit_info;
- sa->txq_count++;
+ sas->txq_count++;
}
done:
free(sa->txq_ctrl);
sa->txq_ctrl = NULL;
- rte_free(sa->txq_info);
- sa->txq_info = NULL;
+ rte_free(sfc_sa2shared(sa)->txq_info);
+ sfc_sa2shared(sa)->txq_info = NULL;
}
int
sfc_tx_qstart(struct sfc_adapter *sa, unsigned int sw_index)
{
+ struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
uint64_t offloads_supported = sfc_tx_get_dev_offload_caps(sa) |
sfc_tx_get_queue_offload_caps(sa);
struct rte_eth_dev_data *dev_data;
sfc_log_init(sa, "TxQ = %u", sw_index);
- SFC_ASSERT(sw_index < sa->txq_count);
- txq_info = &sa->txq_info[sw_index];
+ SFC_ASSERT(sw_index < sas->txq_count);
+ txq_info = &sas->txq_info[sw_index];
SFC_ASSERT(txq_info->state == SFC_TXQ_INITIALIZED);
flags |= EFX_TXQ_CKSUM_INNER_TCPUDP;
}
- if (txq_info->offloads & DEV_TX_OFFLOAD_TCP_TSO)
+ if (txq_info->offloads & (DEV_TX_OFFLOAD_TCP_TSO |
+ DEV_TX_OFFLOAD_VXLAN_TNL_TSO |
+ DEV_TX_OFFLOAD_GENEVE_TNL_TSO))
flags |= EFX_TXQ_FATSOV2;
rc = efx_tx_qcreate(sa->nic, txq->hw_index, 0, &txq->mem,
void
sfc_tx_qstop(struct sfc_adapter *sa, unsigned int sw_index)
{
+ struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
struct rte_eth_dev_data *dev_data;
struct sfc_txq_info *txq_info;
struct sfc_txq *txq;
sfc_log_init(sa, "TxQ = %u", sw_index);
- SFC_ASSERT(sw_index < sa->txq_count);
- txq_info = &sa->txq_info[sw_index];
+ SFC_ASSERT(sw_index < sas->txq_count);
+ txq_info = &sas->txq_info[sw_index];
if (txq_info->state == SFC_TXQ_INITIALIZED)
return;
int
sfc_tx_start(struct sfc_adapter *sa)
{
+ struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
+ const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
unsigned int sw_index;
int rc = 0;
- sfc_log_init(sa, "txq_count = %u", sa->txq_count);
+ sfc_log_init(sa, "txq_count = %u", sas->txq_count);
if (sa->tso) {
- if (!efx_nic_cfg_get(sa->nic)->enc_fw_assisted_tso_v2_enabled) {
+ if (!encp->enc_fw_assisted_tso_v2_enabled &&
+ !encp->enc_tso_v3_enabled) {
sfc_warn(sa, "TSO support was unable to be restored");
sa->tso = B_FALSE;
+ sa->tso_encap = B_FALSE;
}
}
+ if (sa->tso_encap && !encp->enc_fw_assisted_tso_v2_encap_enabled &&
+ !encp->enc_tso_v3_enabled) {
+ sfc_warn(sa, "Encapsulated TSO support was unable to be restored");
+ sa->tso_encap = B_FALSE;
+ }
+
rc = efx_tx_init(sa->nic);
if (rc != 0)
goto fail_efx_tx_init;
- for (sw_index = 0; sw_index < sa->txq_count; ++sw_index) {
- if (sa->txq_info[sw_index].state == SFC_TXQ_INITIALIZED &&
- (!(sa->txq_info[sw_index].deferred_start) ||
- sa->txq_info[sw_index].deferred_started)) {
+ for (sw_index = 0; sw_index < sas->txq_count; ++sw_index) {
+ if (sas->txq_info[sw_index].state == SFC_TXQ_INITIALIZED &&
+ (!(sas->txq_info[sw_index].deferred_start) ||
+ sas->txq_info[sw_index].deferred_started)) {
rc = sfc_tx_qstart(sa, sw_index);
if (rc != 0)
goto fail_tx_qstart;
void
sfc_tx_stop(struct sfc_adapter *sa)
{
+ struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
unsigned int sw_index;
- sfc_log_init(sa, "txq_count = %u", sa->txq_count);
+ sfc_log_init(sa, "txq_count = %u", sas->txq_count);
- sw_index = sa->txq_count;
+ sw_index = sas->txq_count;
while (sw_index-- > 0) {
- if (sa->txq_info[sw_index].state & SFC_TXQ_STARTED)
+ if (sas->txq_info[sw_index].state & SFC_TXQ_STARTED)
sfc_tx_qstop(sa, sw_index);
}
return 1;
}
+static uint16_t
+sfc_efx_prepare_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts)
+{
+ struct sfc_dp_txq *dp_txq = tx_queue;
+ struct sfc_efx_txq *txq = sfc_efx_txq_by_dp_txq(dp_txq);
+ const efx_nic_cfg_t *encp = efx_nic_cfg_get(txq->evq->sa->nic);
+ uint16_t i;
+
+ for (i = 0; i < nb_pkts; i++) {
+ int ret;
+
+ /*
+ * EFX Tx datapath may require extra VLAN descriptor if VLAN
+ * insertion offload is requested regardless the offload
+ * requested/supported.
+ */
+ ret = sfc_dp_tx_prepare_pkt(tx_pkts[i], 0, SFC_TSOH_STD_LEN,
+ encp->enc_tx_tso_tcp_header_offset_limit,
+ txq->max_fill_level, EFX_TX_FATSOV2_OPT_NDESCS,
+ 1);
+ if (unlikely(ret != 0)) {
+ rte_errno = ret;
+ break;
+ }
+ }
+
+ return i;
+}
+
static uint16_t
sfc_efx_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
{
*/
if (sfc_efx_tso_do(txq, added, &m_seg, &in_off, &pend,
&pkt_descs, &pkt_len) != 0) {
- /* We may have reached this place for
- * one of the following reasons:
- *
- * 1) Packet header length is greater
- * than SFC_TSOH_STD_LEN
- * 2) TCP header starts at more then
- * 208 bytes into the frame
+ /* We may have reached this place if packet
+ * header linearization is needed but the
+ * header length is greater than
+ * SFC_TSOH_STD_LEN
*
* We will deceive RTE saying that we have sent
* the packet, but we will actually drop it.
{
const struct sfc_dp_queue *dpq = &dp_txq->dpq;
struct rte_eth_dev *eth_dev;
- struct sfc_adapter *sa;
+ struct sfc_adapter_shared *sas;
SFC_ASSERT(rte_eth_dev_is_valid_port(dpq->port_id));
eth_dev = &rte_eth_devices[dpq->port_id];
- sa = eth_dev->data->dev_private;
+ sas = sfc_adapter_shared_by_eth_dev(eth_dev);
- SFC_ASSERT(dpq->queue_id < sa->txq_count);
- return &sa->txq_info[dpq->queue_id];
+ SFC_ASSERT(dpq->queue_id < sas->txq_count);
+ return &sas->txq_info[dpq->queue_id];
}
struct sfc_txq *
SFC_ASSERT(rte_eth_dev_is_valid_port(dpq->port_id));
eth_dev = &rte_eth_devices[dpq->port_id];
- sa = eth_dev->data->dev_private;
+ sa = sfc_adapter_by_eth_dev(eth_dev);
- SFC_ASSERT(dpq->queue_id < sa->txq_count);
+ SFC_ASSERT(dpq->queue_id < sfc_sa2shared(sa)->txq_count);
return &sa->txq_ctrl[dpq->queue_id];
}
static sfc_dp_tx_qsize_up_rings_t sfc_efx_tx_qsize_up_rings;
static int
sfc_efx_tx_qsize_up_rings(uint16_t nb_tx_desc,
+ __rte_unused struct sfc_dp_tx_hw_limits *limits,
unsigned int *txq_entries,
unsigned int *evq_entries,
unsigned int *txq_max_fill_level)
.dp = {
.name = SFC_KVARG_DATAPATH_EFX,
.type = SFC_DP_TX,
- .hw_fw_caps = 0,
+ .hw_fw_caps = SFC_DP_HW_FW_CAP_TX_EFX,
},
- .features = SFC_DP_TX_FEAT_VLAN_INSERT |
- SFC_DP_TX_FEAT_TSO |
- SFC_DP_TX_FEAT_MULTI_POOL |
- SFC_DP_TX_FEAT_REFCNT |
- SFC_DP_TX_FEAT_MULTI_SEG,
+ .features = 0,
+ .dev_offload_capa = DEV_TX_OFFLOAD_VLAN_INSERT |
+ DEV_TX_OFFLOAD_MULTI_SEGS,
+ .queue_offload_capa = DEV_TX_OFFLOAD_IPV4_CKSUM |
+ DEV_TX_OFFLOAD_UDP_CKSUM |
+ DEV_TX_OFFLOAD_TCP_CKSUM |
+ DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM |
+ DEV_TX_OFFLOAD_TCP_TSO,
.qsize_up_rings = sfc_efx_tx_qsize_up_rings,
.qcreate = sfc_efx_tx_qcreate,
.qdestroy = sfc_efx_tx_qdestroy,
.qstop = sfc_efx_tx_qstop,
.qreap = sfc_efx_tx_qreap,
.qdesc_status = sfc_efx_tx_qdesc_status,
+ .pkt_prepare = sfc_efx_prepare_pkts,
.pkt_burst = sfc_efx_xmit_pkts,
};