-/*-
- * 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.
*/
#include <rte_mempool.h>
#include "sfc_log.h"
#include "sfc_ev.h"
#include "sfc_rx.h"
+#include "sfc_kvargs.h"
#include "sfc_tweak.h"
/*
}
static void
-sfc_rx_qrefill(struct sfc_rxq *rxq)
+sfc_efx_rx_qrefill(struct sfc_efx_rxq *rxq)
{
unsigned int free_space;
unsigned int bulks;
unsigned int added = rxq->added;
unsigned int id;
unsigned int i;
- struct sfc_rx_sw_desc *rxd;
+ struct sfc_efx_rx_sw_desc *rxd;
struct rte_mbuf *m;
- uint8_t port_id = rxq->port_id;
+ uint16_t port_id = rxq->dp.dpq.port_id;
+
+ free_space = rxq->max_fill_level - (added - rxq->completed);
+
+ if (free_space < rxq->refill_threshold)
+ return;
- free_space = EFX_RXQ_LIMIT(rxq->ptr_mask + 1) -
- (added - rxq->completed);
bulks = free_space / RTE_DIM(objs);
+ /* refill_threshold guarantees that bulks is positive */
+ SFC_ASSERT(bulks > 0);
id = added & rxq->ptr_mask;
- while (bulks-- > 0) {
- if (rte_mempool_get_bulk(rxq->refill_mb_pool, objs,
- RTE_DIM(objs)) < 0) {
+ do {
+ if (unlikely(rte_mempool_get_bulk(rxq->refill_mb_pool, objs,
+ RTE_DIM(objs)) < 0)) {
/*
* It is hardly a safe way to increment counter
* from different contexts, but all PMDs do it.
*/
rxq->evq->sa->eth_dev->data->rx_mbuf_alloc_failed +=
RTE_DIM(objs);
+ /* Return if we have posted nothing yet */
+ if (added == rxq->added)
+ return;
+ /* Push posted */
break;
}
rxd = &rxq->sw_desc[id];
rxd->mbuf = m;
- rte_mbuf_refcnt_set(m, 1);
+ SFC_ASSERT(rte_mbuf_refcnt_read(m) == 1);
m->data_off = RTE_PKTMBUF_HEADROOM;
- m->next = NULL;
- m->nb_segs = 1;
+ SFC_ASSERT(m->next == NULL);
+ SFC_ASSERT(m->nb_segs == 1);
m->port = port_id;
- addr[i] = rte_pktmbuf_mtophys(m);
+ addr[i] = rte_pktmbuf_iova(m);
}
efx_rx_qpost(rxq->common, addr, rxq->buf_size,
RTE_DIM(objs), rxq->completed, added);
added += RTE_DIM(objs);
- }
+ } while (--bulks > 0);
- /* Push doorbell if something is posted */
- if (rxq->added != added) {
- rxq->added = added;
- efx_rx_qpush(rxq->common, added, &rxq->pushed);
- }
+ SFC_ASSERT(added != rxq->added);
+ rxq->added = added;
+ efx_rx_qpush(rxq->common, added, &rxq->pushed);
}
static uint64_t
-sfc_rx_desc_flags_to_offload_flags(const unsigned int desc_flags)
+sfc_efx_rx_desc_flags_to_offload_flags(const unsigned int desc_flags)
{
uint64_t mbuf_flags = 0;
}
static uint32_t
-sfc_rx_desc_flags_to_packet_type(const unsigned int desc_flags)
+sfc_efx_rx_desc_flags_to_packet_type(const unsigned int desc_flags)
{
return RTE_PTYPE_L2_ETHER |
((desc_flags & EFX_PKT_IPV4) ?
((desc_flags & EFX_PKT_UDP) ? RTE_PTYPE_L4_UDP : 0);
}
-uint16_t
-sfc_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
+static const uint32_t *
+sfc_efx_supported_ptypes_get(__rte_unused uint32_t tunnel_encaps)
+{
+ static const uint32_t ptypes[] = {
+ RTE_PTYPE_L2_ETHER,
+ RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
+ RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
+ RTE_PTYPE_L4_TCP,
+ RTE_PTYPE_L4_UDP,
+ RTE_PTYPE_UNKNOWN
+ };
+
+ return ptypes;
+}
+
+static void
+sfc_efx_rx_set_rss_hash(struct sfc_efx_rxq *rxq, unsigned int flags,
+ struct rte_mbuf *m)
{
- struct sfc_rxq *rxq = rx_queue;
+ uint8_t *mbuf_data;
+
+
+ if ((rxq->flags & SFC_EFX_RXQ_FLAG_RSS_HASH) == 0)
+ return;
+
+ mbuf_data = rte_pktmbuf_mtod(m, uint8_t *);
+
+ if (flags & (EFX_PKT_IPV4 | EFX_PKT_IPV6)) {
+ m->hash.rss = efx_pseudo_hdr_hash_get(rxq->common,
+ EFX_RX_HASHALG_TOEPLITZ,
+ mbuf_data);
+
+ m->ol_flags |= PKT_RX_RSS_HASH;
+ }
+}
+
+static uint16_t
+sfc_efx_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
+{
+ struct sfc_dp_rxq *dp_rxq = rx_queue;
+ struct sfc_efx_rxq *rxq = sfc_efx_rxq_by_dp_rxq(dp_rxq);
unsigned int completed;
unsigned int prefix_size = rxq->prefix_size;
unsigned int done_pkts = 0;
boolean_t discard_next = B_FALSE;
+ struct rte_mbuf *scatter_pkt = NULL;
- if (unlikely((rxq->state & SFC_RXQ_RUNNING) == 0))
+ if (unlikely((rxq->flags & SFC_EFX_RXQ_FLAG_RUNNING) == 0))
return 0;
sfc_ev_qpoll(rxq->evq);
completed = rxq->completed;
while (completed != rxq->pending && done_pkts < nb_pkts) {
unsigned int id;
- struct sfc_rx_sw_desc *rxd;
+ struct sfc_efx_rx_sw_desc *rxd;
struct rte_mbuf *m;
unsigned int seg_len;
unsigned int desc_flags;
if (desc_flags & (EFX_ADDR_MISMATCH | EFX_DISCARD))
goto discard;
- if (desc_flags & EFX_PKT_CONT)
- goto discard;
-
if (desc_flags & EFX_PKT_PREFIX_LEN) {
uint16_t tmp_size;
int rc __rte_unused;
seg_len = rxd->size - prefix_size;
}
- m->data_off += prefix_size;
rte_pktmbuf_data_len(m) = seg_len;
rte_pktmbuf_pkt_len(m) = seg_len;
- m->ol_flags = sfc_rx_desc_flags_to_offload_flags(desc_flags);
- m->packet_type = sfc_rx_desc_flags_to_packet_type(desc_flags);
+ if (scatter_pkt != NULL) {
+ if (rte_pktmbuf_chain(scatter_pkt, m) != 0) {
+ rte_pktmbuf_free(scatter_pkt);
+ goto discard;
+ }
+ /* The packet to deliver */
+ m = scatter_pkt;
+ }
+
+ if (desc_flags & EFX_PKT_CONT) {
+ /* The packet is scattered, more fragments to come */
+ scatter_pkt = m;
+ /* Further fragments have no prefix */
+ prefix_size = 0;
+ continue;
+ }
+
+ /* Scattered packet is done */
+ scatter_pkt = NULL;
+ /* The first fragment of the packet has prefix */
+ prefix_size = rxq->prefix_size;
+
+ m->ol_flags =
+ sfc_efx_rx_desc_flags_to_offload_flags(desc_flags);
+ m->packet_type =
+ sfc_efx_rx_desc_flags_to_packet_type(desc_flags);
+
+ /*
+ * Extract RSS hash from the packet prefix and
+ * set the corresponding field (if needed and possible)
+ */
+ sfc_efx_rx_set_rss_hash(rxq, desc_flags, m);
+
+ m->data_off += prefix_size;
*rx_pkts++ = m;
done_pkts++;
rxd->mbuf = NULL;
}
+ /* pending is only moved when entire packet is received */
+ SFC_ASSERT(scatter_pkt == NULL);
+
rxq->completed = completed;
- sfc_rx_qrefill(rxq);
+ sfc_efx_rx_qrefill(rxq);
return done_pkts;
}
+static sfc_dp_rx_qdesc_npending_t sfc_efx_rx_qdesc_npending;
+static unsigned int
+sfc_efx_rx_qdesc_npending(struct sfc_dp_rxq *dp_rxq)
+{
+ struct sfc_efx_rxq *rxq = sfc_efx_rxq_by_dp_rxq(dp_rxq);
+
+ if ((rxq->flags & SFC_EFX_RXQ_FLAG_RUNNING) == 0)
+ return 0;
+
+ sfc_ev_qpoll(rxq->evq);
+
+ return rxq->pending - rxq->completed;
+}
+
+static sfc_dp_rx_qdesc_status_t sfc_efx_rx_qdesc_status;
+static int
+sfc_efx_rx_qdesc_status(struct sfc_dp_rxq *dp_rxq, uint16_t offset)
+{
+ struct sfc_efx_rxq *rxq = sfc_efx_rxq_by_dp_rxq(dp_rxq);
+
+ if (unlikely(offset > rxq->ptr_mask))
+ return -EINVAL;
+
+ /*
+ * Poll EvQ to derive up-to-date 'rxq->pending' figure;
+ * it is required for the queue to be running, but the
+ * check is omitted because API design assumes that it
+ * is the duty of the caller to satisfy all conditions
+ */
+ SFC_ASSERT((rxq->flags & SFC_EFX_RXQ_FLAG_RUNNING) ==
+ SFC_EFX_RXQ_FLAG_RUNNING);
+ sfc_ev_qpoll(rxq->evq);
+
+ /*
+ * There is a handful of reserved entries in the ring,
+ * but an explicit check whether the offset points to
+ * a reserved entry is neglected since the two checks
+ * below rely on the figures which take the HW limits
+ * into account and thus if an entry is reserved, the
+ * checks will fail and UNAVAIL code will be returned
+ */
+
+ if (offset < (rxq->pending - rxq->completed))
+ return RTE_ETH_RX_DESC_DONE;
+
+ if (offset < (rxq->added - rxq->completed))
+ return RTE_ETH_RX_DESC_AVAIL;
+
+ return RTE_ETH_RX_DESC_UNAVAIL;
+}
+
+struct sfc_rxq *
+sfc_rxq_by_dp_rxq(const struct sfc_dp_rxq *dp_rxq)
+{
+ const struct sfc_dp_queue *dpq = &dp_rxq->dpq;
+ struct rte_eth_dev *eth_dev;
+ struct sfc_adapter *sa;
+ struct sfc_rxq *rxq;
+
+ 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;
+
+ SFC_ASSERT(dpq->queue_id < sa->rxq_count);
+ rxq = sa->rxq_info[dpq->queue_id].rxq;
+
+ SFC_ASSERT(rxq != NULL);
+ return rxq;
+}
+
+static sfc_dp_rx_qsize_up_rings_t sfc_efx_rx_qsize_up_rings;
+static int
+sfc_efx_rx_qsize_up_rings(uint16_t nb_rx_desc,
+ __rte_unused struct rte_mempool *mb_pool,
+ unsigned int *rxq_entries,
+ unsigned int *evq_entries,
+ unsigned int *rxq_max_fill_level)
+{
+ *rxq_entries = nb_rx_desc;
+ *evq_entries = nb_rx_desc;
+ *rxq_max_fill_level = EFX_RXQ_LIMIT(*rxq_entries);
+ return 0;
+}
+
+static sfc_dp_rx_qcreate_t sfc_efx_rx_qcreate;
+static int
+sfc_efx_rx_qcreate(uint16_t port_id, uint16_t queue_id,
+ const struct rte_pci_addr *pci_addr, int socket_id,
+ const struct sfc_dp_rx_qcreate_info *info,
+ struct sfc_dp_rxq **dp_rxqp)
+{
+ struct sfc_efx_rxq *rxq;
+ int rc;
+
+ rc = ENOMEM;
+ rxq = rte_zmalloc_socket("sfc-efx-rxq", sizeof(*rxq),
+ RTE_CACHE_LINE_SIZE, socket_id);
+ if (rxq == NULL)
+ goto fail_rxq_alloc;
+
+ sfc_dp_queue_init(&rxq->dp.dpq, port_id, queue_id, pci_addr);
+
+ rc = ENOMEM;
+ rxq->sw_desc = rte_calloc_socket("sfc-efx-rxq-sw_desc",
+ info->rxq_entries,
+ sizeof(*rxq->sw_desc),
+ RTE_CACHE_LINE_SIZE, socket_id);
+ if (rxq->sw_desc == NULL)
+ goto fail_desc_alloc;
+
+ /* efx datapath is bound to efx control path */
+ rxq->evq = sfc_rxq_by_dp_rxq(&rxq->dp)->evq;
+ if (info->flags & SFC_RXQ_FLAG_RSS_HASH)
+ rxq->flags |= SFC_EFX_RXQ_FLAG_RSS_HASH;
+ rxq->ptr_mask = info->rxq_entries - 1;
+ rxq->batch_max = info->batch_max;
+ rxq->prefix_size = info->prefix_size;
+ rxq->max_fill_level = info->max_fill_level;
+ rxq->refill_threshold = info->refill_threshold;
+ rxq->buf_size = info->buf_size;
+ rxq->refill_mb_pool = info->refill_mb_pool;
+
+ *dp_rxqp = &rxq->dp;
+ return 0;
+
+fail_desc_alloc:
+ rte_free(rxq);
+
+fail_rxq_alloc:
+ return rc;
+}
+
+static sfc_dp_rx_qdestroy_t sfc_efx_rx_qdestroy;
static void
-sfc_rx_qpurge(struct sfc_rxq *rxq)
+sfc_efx_rx_qdestroy(struct sfc_dp_rxq *dp_rxq)
{
+ struct sfc_efx_rxq *rxq = sfc_efx_rxq_by_dp_rxq(dp_rxq);
+
+ rte_free(rxq->sw_desc);
+ rte_free(rxq);
+}
+
+static sfc_dp_rx_qstart_t sfc_efx_rx_qstart;
+static int
+sfc_efx_rx_qstart(struct sfc_dp_rxq *dp_rxq,
+ __rte_unused unsigned int evq_read_ptr)
+{
+ /* libefx-based datapath is specific to libefx-based PMD */
+ struct sfc_efx_rxq *rxq = sfc_efx_rxq_by_dp_rxq(dp_rxq);
+ struct sfc_rxq *crxq = sfc_rxq_by_dp_rxq(dp_rxq);
+
+ rxq->common = crxq->common;
+
+ rxq->pending = rxq->completed = rxq->added = rxq->pushed = 0;
+
+ sfc_efx_rx_qrefill(rxq);
+
+ rxq->flags |= (SFC_EFX_RXQ_FLAG_STARTED | SFC_EFX_RXQ_FLAG_RUNNING);
+
+ return 0;
+}
+
+static sfc_dp_rx_qstop_t sfc_efx_rx_qstop;
+static void
+sfc_efx_rx_qstop(struct sfc_dp_rxq *dp_rxq,
+ __rte_unused unsigned int *evq_read_ptr)
+{
+ struct sfc_efx_rxq *rxq = sfc_efx_rxq_by_dp_rxq(dp_rxq);
+
+ rxq->flags &= ~SFC_EFX_RXQ_FLAG_RUNNING;
+
+ /* libefx-based datapath is bound to libefx-based PMD and uses
+ * event queue structure directly. So, there is no necessity to
+ * return EvQ read pointer.
+ */
+}
+
+static sfc_dp_rx_qpurge_t sfc_efx_rx_qpurge;
+static void
+sfc_efx_rx_qpurge(struct sfc_dp_rxq *dp_rxq)
+{
+ struct sfc_efx_rxq *rxq = sfc_efx_rxq_by_dp_rxq(dp_rxq);
unsigned int i;
- struct sfc_rx_sw_desc *rxd;
+ struct sfc_efx_rx_sw_desc *rxd;
for (i = rxq->completed; i != rxq->added; ++i) {
rxd = &rxq->sw_desc[i & rxq->ptr_mask];
rte_mempool_put(rxq->refill_mb_pool, rxd->mbuf);
rxd->mbuf = NULL;
+ /* Packed stream relies on 0 in inactive SW desc.
+ * Rx queue stop is not performance critical, so
+ * there is no harm to do it always.
+ */
+ rxd->flags = 0;
+ rxd->size = 0;
}
+
+ rxq->flags &= ~SFC_EFX_RXQ_FLAG_STARTED;
+}
+
+struct sfc_dp_rx sfc_efx_rx = {
+ .dp = {
+ .name = SFC_KVARG_DATAPATH_EFX,
+ .type = SFC_DP_RX,
+ .hw_fw_caps = 0,
+ },
+ .features = SFC_DP_RX_FEAT_SCATTER |
+ SFC_DP_RX_FEAT_CHECKSUM,
+ .qsize_up_rings = sfc_efx_rx_qsize_up_rings,
+ .qcreate = sfc_efx_rx_qcreate,
+ .qdestroy = sfc_efx_rx_qdestroy,
+ .qstart = sfc_efx_rx_qstart,
+ .qstop = sfc_efx_rx_qstop,
+ .qpurge = sfc_efx_rx_qpurge,
+ .supported_ptypes_get = sfc_efx_supported_ptypes_get,
+ .qdesc_npending = sfc_efx_rx_qdesc_npending,
+ .qdesc_status = sfc_efx_rx_qdesc_status,
+ .pkt_burst = sfc_efx_recv_pkts,
+};
+
+unsigned int
+sfc_rx_qdesc_npending(struct sfc_adapter *sa, unsigned int sw_index)
+{
+ struct sfc_rxq *rxq;
+
+ SFC_ASSERT(sw_index < sa->rxq_count);
+ rxq = sa->rxq_info[sw_index].rxq;
+
+ if (rxq == NULL || (rxq->state & SFC_RXQ_STARTED) == 0)
+ return 0;
+
+ return sa->dp_rx->qdesc_npending(rxq->dp);
+}
+
+int
+sfc_rx_qdesc_done(struct sfc_dp_rxq *dp_rxq, unsigned int offset)
+{
+ struct sfc_rxq *rxq = sfc_rxq_by_dp_rxq(dp_rxq);
+
+ return offset < rxq->evq->sa->dp_rx->qdesc_npending(dp_rxq);
}
static void
struct sfc_rxq *rxq;
unsigned int retry_count;
unsigned int wait_count;
+ int rc;
rxq = sa->rxq_info[sw_index].rxq;
SFC_ASSERT(rxq->state & SFC_RXQ_STARTED);
((rxq->state & SFC_RXQ_FLUSHED) == 0) &&
(retry_count < SFC_RX_QFLUSH_ATTEMPTS);
++retry_count) {
- if (efx_rx_qflush(rxq->common) != 0) {
- rxq->state |= SFC_RXQ_FLUSH_FAILED;
+ rc = efx_rx_qflush(rxq->common);
+ if (rc != 0) {
+ rxq->state |= (rc == EALREADY) ?
+ SFC_RXQ_FLUSHED : SFC_RXQ_FLUSH_FAILED;
break;
}
rxq->state &= ~SFC_RXQ_FLUSH_FAILED;
sfc_err(sa, "RxQ %u flush failed", sw_index);
if (rxq->state & SFC_RXQ_FLUSHED)
- sfc_info(sa, "RxQ %u flushed", sw_index);
+ sfc_notice(sa, "RxQ %u flushed", sw_index);
+ }
+
+ sa->dp_rx->qpurge(rxq->dp);
+}
+
+static int
+sfc_rx_default_rxq_set_filter(struct sfc_adapter *sa, struct sfc_rxq *rxq)
+{
+ struct sfc_rss *rss = &sa->rss;
+ boolean_t need_rss = (rss->channels > 0) ? B_TRUE : B_FALSE;
+ struct sfc_port *port = &sa->port;
+ int rc;
+
+ /*
+ * If promiscuous or all-multicast mode has been requested, setting
+ * filter for the default Rx queue might fail, in particular, while
+ * running over PCI function which is not a member of corresponding
+ * privilege groups; if this occurs, few iterations will be made to
+ * repeat this step without promiscuous and all-multicast flags set
+ */
+retry:
+ rc = efx_mac_filter_default_rxq_set(sa->nic, rxq->common, need_rss);
+ if (rc == 0)
+ return 0;
+ else if (rc != EOPNOTSUPP)
+ return rc;
+
+ if (port->promisc) {
+ sfc_warn(sa, "promiscuous mode has been requested, "
+ "but the HW rejects it");
+ sfc_warn(sa, "promiscuous mode will be disabled");
+
+ port->promisc = B_FALSE;
+ rc = sfc_set_rx_mode(sa);
+ if (rc != 0)
+ return rc;
+
+ goto retry;
+ }
+
+ if (port->allmulti) {
+ sfc_warn(sa, "all-multicast mode has been requested, "
+ "but the HW rejects it");
+ sfc_warn(sa, "all-multicast mode will be disabled");
+
+ port->allmulti = B_FALSE;
+ rc = sfc_set_rx_mode(sa);
+ if (rc != 0)
+ return rc;
+
+ goto retry;
}
- sfc_rx_qpurge(rxq);
+ return rc;
}
int
sfc_rx_qstart(struct sfc_adapter *sa, unsigned int sw_index)
{
+ struct sfc_port *port = &sa->port;
struct sfc_rxq_info *rxq_info;
struct sfc_rxq *rxq;
struct sfc_evq *evq;
rxq_info = &sa->rxq_info[sw_index];
rxq = rxq_info->rxq;
+ SFC_ASSERT(rxq != NULL);
SFC_ASSERT(rxq->state == SFC_RXQ_INITIALIZED);
evq = rxq->evq;
- rc = sfc_ev_qstart(sa, evq->evq_index);
+ rc = sfc_ev_qstart(evq, sfc_evq_index_by_rxq_sw_index(sa, sw_index));
if (rc != 0)
goto fail_ev_qstart;
- rc = efx_rx_qcreate(sa->nic, rxq->hw_index, 0, rxq_info->type,
- &rxq->mem, rxq_info->entries,
- 0 /* not used on EF10 */, evq->common,
- &rxq->common);
+ switch (rxq_info->type) {
+ case EFX_RXQ_TYPE_DEFAULT:
+ rc = efx_rx_qcreate(sa->nic, rxq->hw_index, 0, rxq_info->type,
+ &rxq->mem, rxq_info->entries, 0 /* not used on EF10 */,
+ rxq_info->type_flags, evq->common, &rxq->common);
+ break;
+ case EFX_RXQ_TYPE_ES_SUPER_BUFFER: {
+ struct rte_mempool *mp = rxq->refill_mb_pool;
+ struct rte_mempool_info mp_info;
+
+ rc = rte_mempool_ops_get_info(mp, &mp_info);
+ if (rc != 0) {
+ /* Positive errno is used in the driver */
+ rc = -rc;
+ goto fail_mp_get_info;
+ }
+ if (mp_info.contig_block_size <= 0) {
+ rc = EINVAL;
+ goto fail_bad_contig_block_size;
+ }
+ rc = efx_rx_qcreate_es_super_buffer(sa->nic, rxq->hw_index, 0,
+ mp_info.contig_block_size, rxq->buf_size,
+ mp->header_size + mp->elt_size + mp->trailer_size,
+ sa->rxd_wait_timeout_ns,
+ &rxq->mem, rxq_info->entries, rxq_info->type_flags,
+ evq->common, &rxq->common);
+ break;
+ }
+ default:
+ rc = ENOTSUP;
+ }
if (rc != 0)
goto fail_rx_qcreate;
efx_rx_qenable(rxq->common);
- rxq->pending = rxq->completed = rxq->added = rxq->pushed = 0;
-
- rxq->state |= (SFC_RXQ_STARTED | SFC_RXQ_RUNNING);
+ rc = sa->dp_rx->qstart(rxq->dp, evq->read_ptr);
+ if (rc != 0)
+ goto fail_dp_qstart;
- sfc_rx_qrefill(rxq);
+ rxq->state |= SFC_RXQ_STARTED;
- if (sw_index == 0) {
- rc = efx_mac_filter_default_rxq_set(sa->nic, rxq->common,
- B_FALSE);
+ if ((sw_index == 0) && !port->isolated) {
+ rc = sfc_rx_default_rxq_set_filter(sa, rxq);
if (rc != 0)
goto fail_mac_filter_default_rxq_set;
}
return 0;
fail_mac_filter_default_rxq_set:
+ sa->dp_rx->qstop(rxq->dp, &rxq->evq->read_ptr);
+
+fail_dp_qstart:
sfc_rx_qflush(sa, sw_index);
fail_rx_qcreate:
- sfc_ev_qstop(sa, evq->evq_index);
+fail_bad_contig_block_size:
+fail_mp_get_info:
+ sfc_ev_qstop(evq);
fail_ev_qstart:
return rc;
rxq_info = &sa->rxq_info[sw_index];
rxq = rxq_info->rxq;
+
+ if (rxq == NULL || rxq->state == SFC_RXQ_INITIALIZED)
+ return;
SFC_ASSERT(rxq->state & SFC_RXQ_STARTED);
/* It seems to be used by DPDK for debug purposes only ('rte_ether') */
sa->eth_dev->data->rx_queue_state[sw_index] =
RTE_ETH_QUEUE_STATE_STOPPED;
- rxq->state &= ~SFC_RXQ_RUNNING;
+ sa->dp_rx->qstop(rxq->dp, &rxq->evq->read_ptr);
if (sw_index == 0)
efx_mac_filter_default_rxq_clear(sa->nic);
efx_rx_qdestroy(rxq->common);
- sfc_ev_qstop(sa, rxq->evq->evq_index);
+ sfc_ev_qstop(rxq->evq);
+}
+
+uint64_t
+sfc_rx_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_RX_OFFLOAD_JUMBO_FRAME;
+
+ if (sa->dp_rx->features & SFC_DP_RX_FEAT_CHECKSUM) {
+ caps |= DEV_RX_OFFLOAD_IPV4_CKSUM;
+ caps |= DEV_RX_OFFLOAD_UDP_CKSUM;
+ caps |= DEV_RX_OFFLOAD_TCP_CKSUM;
+ }
+
+ if (encp->enc_tunnel_encapsulations_supported &&
+ (sa->dp_rx->features & SFC_DP_RX_FEAT_TUNNELS))
+ caps |= DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM;
+
+ return caps;
+}
+
+uint64_t
+sfc_rx_get_queue_offload_caps(struct sfc_adapter *sa)
+{
+ uint64_t caps = 0;
+
+ if (sa->dp_rx->features & SFC_DP_RX_FEAT_SCATTER)
+ caps |= DEV_RX_OFFLOAD_SCATTER;
+
+ return caps;
}
static int
-sfc_rx_qcheck_conf(struct sfc_adapter *sa,
- const struct rte_eth_rxconf *rx_conf)
+sfc_rx_qcheck_conf(struct sfc_adapter *sa, unsigned int rxq_max_fill_level,
+ const struct rte_eth_rxconf *rx_conf,
+ __rte_unused uint64_t offloads)
{
int rc = 0;
if (rx_conf->rx_thresh.pthresh != 0 ||
rx_conf->rx_thresh.hthresh != 0 ||
rx_conf->rx_thresh.wthresh != 0) {
- sfc_err(sa,
+ sfc_warn(sa,
"RxQ prefetch/host/writeback thresholds are not supported");
- rc = EINVAL;
}
- if (rx_conf->rx_free_thresh != 0) {
- sfc_err(sa, "RxQ free threshold is not supported");
+ if (rx_conf->rx_free_thresh > rxq_max_fill_level) {
+ sfc_err(sa,
+ "RxQ free threshold too large: %u vs maximum %u",
+ rx_conf->rx_free_thresh, rxq_max_fill_level);
rc = EINVAL;
}
rc = EINVAL;
}
- if (rx_conf->rx_deferred_start != 0) {
- sfc_err(sa, "RxQ deferred start is not supported");
- rc = EINVAL;
- }
-
return rc;
}
order = MIN(order, rte_bsf32(data_off));
- return 1u << (order - 1);
+ return 1u << order;
}
static uint16_t
struct rte_mempool *mb_pool)
{
const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
+ struct sfc_rss *rss = &sa->rss;
int rc;
+ unsigned int rxq_entries;
+ unsigned int evq_entries;
+ unsigned int rxq_max_fill_level;
+ uint64_t offloads;
uint16_t buf_size;
struct sfc_rxq_info *rxq_info;
- unsigned int evq_index;
struct sfc_evq *evq;
struct sfc_rxq *rxq;
+ struct sfc_dp_rx_qcreate_info info;
- rc = sfc_rx_qcheck_conf(sa, rx_conf);
+ rc = sa->dp_rx->qsize_up_rings(nb_rx_desc, mb_pool, &rxq_entries,
+ &evq_entries, &rxq_max_fill_level);
+ if (rc != 0)
+ goto fail_size_up_rings;
+ SFC_ASSERT(rxq_entries >= EFX_RXQ_MINNDESCS);
+ SFC_ASSERT(rxq_entries <= EFX_RXQ_MAXNDESCS);
+ SFC_ASSERT(rxq_max_fill_level <= nb_rx_desc);
+
+ offloads = rx_conf->offloads |
+ sa->eth_dev->data->dev_conf.rxmode.offloads;
+ rc = sfc_rx_qcheck_conf(sa, rxq_max_fill_level, rx_conf, offloads);
if (rc != 0)
goto fail_bad_conf;
}
if ((buf_size < sa->port.pdu + encp->enc_rx_prefix_size) &&
- !sa->eth_dev->data->dev_conf.rxmode.enable_scatter) {
+ (~offloads & DEV_RX_OFFLOAD_SCATTER)) {
sfc_err(sa, "Rx scatter is disabled and RxQ %u mbuf pool "
"object size is too small", sw_index);
sfc_err(sa, "RxQ %u calculated Rx buffer size is %u vs "
SFC_ASSERT(sw_index < sa->rxq_count);
rxq_info = &sa->rxq_info[sw_index];
- SFC_ASSERT(nb_rx_desc <= rxq_info->max_entries);
- rxq_info->entries = nb_rx_desc;
- rxq_info->type = EFX_RXQ_TYPE_DEFAULT;
+ SFC_ASSERT(rxq_entries <= rxq_info->max_entries);
+ rxq_info->entries = rxq_entries;
+
+ if (sa->dp_rx->dp.hw_fw_caps & SFC_DP_HW_FW_CAP_RX_ES_SUPER_BUFFER)
+ rxq_info->type = EFX_RXQ_TYPE_ES_SUPER_BUFFER;
+ else
+ rxq_info->type = EFX_RXQ_TYPE_DEFAULT;
+
+ rxq_info->type_flags =
+ (offloads & DEV_RX_OFFLOAD_SCATTER) ?
+ EFX_RXQ_FLAG_SCATTER : EFX_RXQ_FLAG_NONE;
- evq_index = sfc_evq_index_by_rxq_sw_index(sa, sw_index);
+ if ((encp->enc_tunnel_encapsulations_supported != 0) &&
+ (sa->dp_rx->features & SFC_DP_RX_FEAT_TUNNELS))
+ rxq_info->type_flags |= EFX_RXQ_FLAG_INNER_CLASSES;
- rc = sfc_ev_qinit(sa, evq_index, rxq_info->entries, socket_id);
+ rc = sfc_ev_qinit(sa, SFC_EVQ_TYPE_RX, sw_index,
+ evq_entries, socket_id, &evq);
if (rc != 0)
goto fail_ev_qinit;
- evq = sa->evq_info[evq_index].evq;
-
rc = ENOMEM;
rxq = rte_zmalloc_socket("sfc-rxq", sizeof(*rxq), RTE_CACHE_LINE_SIZE,
socket_id);
if (rxq == NULL)
goto fail_rxq_alloc;
+ rxq_info->rxq = rxq;
+
+ rxq->evq = evq;
+ rxq->hw_index = sw_index;
+ rxq->refill_threshold =
+ RTE_MAX(rx_conf->rx_free_thresh, SFC_RX_REFILL_BULK);
+ rxq->refill_mb_pool = mb_pool;
+ rxq->buf_size = buf_size;
+
rc = sfc_dma_alloc(sa, "rxq", sw_index, EFX_RXQ_SIZE(rxq_info->entries),
socket_id, &rxq->mem);
if (rc != 0)
goto fail_dma_alloc;
- rc = ENOMEM;
- rxq->sw_desc = rte_calloc_socket("sfc-rxq-sw_desc", rxq_info->entries,
- sizeof(*rxq->sw_desc),
- RTE_CACHE_LINE_SIZE, socket_id);
- if (rxq->sw_desc == NULL)
- goto fail_desc_alloc;
-
- evq->rxq = rxq;
- rxq->evq = evq;
- rxq->ptr_mask = rxq_info->entries - 1;
- rxq->refill_mb_pool = mb_pool;
- rxq->buf_size = buf_size;
- rxq->hw_index = sw_index;
- rxq->port_id = sa->eth_dev->data->port_id;
+ memset(&info, 0, sizeof(info));
+ info.refill_mb_pool = rxq->refill_mb_pool;
+ info.max_fill_level = rxq_max_fill_level;
+ info.refill_threshold = rxq->refill_threshold;
+ info.buf_size = buf_size;
+ info.batch_max = encp->enc_rx_batch_max;
+ info.prefix_size = encp->enc_rx_prefix_size;
+
+ if (rss->hash_support == EFX_RX_HASH_AVAILABLE && rss->channels > 0)
+ info.flags |= SFC_RXQ_FLAG_RSS_HASH;
+
+ info.rxq_entries = rxq_info->entries;
+ info.rxq_hw_ring = rxq->mem.esm_base;
+ info.evq_entries = evq_entries;
+ info.evq_hw_ring = evq->mem.esm_base;
+ info.hw_index = rxq->hw_index;
+ info.mem_bar = sa->mem_bar.esb_base;
+ info.vi_window_shift = encp->enc_vi_window_shift;
+
+ rc = sa->dp_rx->qcreate(sa->eth_dev->data->port_id, sw_index,
+ &RTE_ETH_DEV_TO_PCI(sa->eth_dev)->addr,
+ socket_id, &info, &rxq->dp);
+ if (rc != 0)
+ goto fail_dp_rx_qcreate;
- /* Cache limits required on datapath in RxQ structure */
- rxq->batch_max = encp->enc_rx_batch_max;
- rxq->prefix_size = encp->enc_rx_prefix_size;
+ evq->dp_rxq = rxq->dp;
rxq->state = SFC_RXQ_INITIALIZED;
- rxq_info->rxq = rxq;
+ rxq_info->deferred_start = (rx_conf->rx_deferred_start != 0);
return 0;
-fail_desc_alloc:
+fail_dp_rx_qcreate:
sfc_dma_free(sa, &rxq->mem);
fail_dma_alloc:
+ rxq_info->rxq = NULL;
rte_free(rxq);
fail_rxq_alloc:
- sfc_ev_qfini(sa, evq_index);
+ sfc_ev_qfini(evq);
fail_ev_qinit:
rxq_info->entries = 0;
fail_bad_conf:
+fail_size_up_rings:
sfc_log_init(sa, "failed %d", rc);
return rc;
}
rxq = rxq_info->rxq;
SFC_ASSERT(rxq->state == SFC_RXQ_INITIALIZED);
+ sa->dp_rx->qdestroy(rxq->dp);
+ rxq->dp = NULL;
+
rxq_info->rxq = NULL;
rxq_info->entries = 0;
- rte_free(rxq->sw_desc);
sfc_dma_free(sa, &rxq->mem);
+
+ sfc_ev_qfini(rxq->evq);
+ rxq->evq = NULL;
+
rte_free(rxq);
}
+/*
+ * Mapping between RTE RSS hash functions and their EFX counterparts.
+ */
+struct sfc_rss_hf_rte_to_efx sfc_rss_hf_map[] = {
+ { ETH_RSS_NONFRAG_IPV4_TCP,
+ EFX_RX_HASH(IPV4_TCP, 4TUPLE) },
+ { ETH_RSS_NONFRAG_IPV4_UDP,
+ EFX_RX_HASH(IPV4_UDP, 4TUPLE) },
+ { ETH_RSS_NONFRAG_IPV6_TCP | ETH_RSS_IPV6_TCP_EX,
+ EFX_RX_HASH(IPV6_TCP, 4TUPLE) },
+ { ETH_RSS_NONFRAG_IPV6_UDP | ETH_RSS_IPV6_UDP_EX,
+ EFX_RX_HASH(IPV6_UDP, 4TUPLE) },
+ { ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 | ETH_RSS_NONFRAG_IPV4_OTHER,
+ EFX_RX_HASH(IPV4_TCP, 2TUPLE) | EFX_RX_HASH(IPV4_UDP, 2TUPLE) |
+ EFX_RX_HASH(IPV4, 2TUPLE) },
+ { ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 | ETH_RSS_NONFRAG_IPV6_OTHER |
+ ETH_RSS_IPV6_EX,
+ EFX_RX_HASH(IPV6_TCP, 2TUPLE) | EFX_RX_HASH(IPV6_UDP, 2TUPLE) |
+ EFX_RX_HASH(IPV6, 2TUPLE) }
+};
+
+static efx_rx_hash_type_t
+sfc_rx_hash_types_mask_supp(efx_rx_hash_type_t hash_type,
+ unsigned int *hash_type_flags_supported,
+ unsigned int nb_hash_type_flags_supported)
+{
+ efx_rx_hash_type_t hash_type_masked = 0;
+ unsigned int i, j;
+
+ for (i = 0; i < nb_hash_type_flags_supported; ++i) {
+ unsigned int class_tuple_lbn[] = {
+ EFX_RX_CLASS_IPV4_TCP_LBN,
+ EFX_RX_CLASS_IPV4_UDP_LBN,
+ EFX_RX_CLASS_IPV4_LBN,
+ EFX_RX_CLASS_IPV6_TCP_LBN,
+ EFX_RX_CLASS_IPV6_UDP_LBN,
+ EFX_RX_CLASS_IPV6_LBN
+ };
+
+ for (j = 0; j < RTE_DIM(class_tuple_lbn); ++j) {
+ unsigned int tuple_mask = EFX_RX_CLASS_HASH_4TUPLE;
+ unsigned int flag;
+
+ tuple_mask <<= class_tuple_lbn[j];
+ flag = hash_type & tuple_mask;
+
+ if (flag == hash_type_flags_supported[i])
+ hash_type_masked |= flag;
+ }
+ }
+
+ return hash_type_masked;
+}
+
+int
+sfc_rx_hash_init(struct sfc_adapter *sa)
+{
+ struct sfc_rss *rss = &sa->rss;
+ const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
+ uint32_t alg_mask = encp->enc_rx_scale_hash_alg_mask;
+ efx_rx_hash_alg_t alg;
+ unsigned int flags_supp[EFX_RX_HASH_NFLAGS];
+ unsigned int nb_flags_supp;
+ struct sfc_rss_hf_rte_to_efx *hf_map;
+ struct sfc_rss_hf_rte_to_efx *entry;
+ efx_rx_hash_type_t efx_hash_types;
+ unsigned int i;
+ int rc;
+
+ if (alg_mask & (1U << EFX_RX_HASHALG_TOEPLITZ))
+ alg = EFX_RX_HASHALG_TOEPLITZ;
+ else if (alg_mask & (1U << EFX_RX_HASHALG_PACKED_STREAM))
+ alg = EFX_RX_HASHALG_PACKED_STREAM;
+ else
+ return EINVAL;
+
+ rc = efx_rx_scale_hash_flags_get(sa->nic, alg, flags_supp,
+ &nb_flags_supp);
+ if (rc != 0)
+ return rc;
+
+ hf_map = rte_calloc_socket("sfc-rss-hf-map",
+ RTE_DIM(sfc_rss_hf_map),
+ sizeof(*hf_map), 0, sa->socket_id);
+ if (hf_map == NULL)
+ return ENOMEM;
+
+ entry = hf_map;
+ efx_hash_types = 0;
+ for (i = 0; i < RTE_DIM(sfc_rss_hf_map); ++i) {
+ efx_rx_hash_type_t ht;
+
+ ht = sfc_rx_hash_types_mask_supp(sfc_rss_hf_map[i].efx,
+ flags_supp, nb_flags_supp);
+ if (ht != 0) {
+ entry->rte = sfc_rss_hf_map[i].rte;
+ entry->efx = ht;
+ efx_hash_types |= ht;
+ ++entry;
+ }
+ }
+
+ rss->hash_alg = alg;
+ rss->hf_map_nb_entries = (unsigned int)(entry - hf_map);
+ rss->hf_map = hf_map;
+ rss->hash_types = efx_hash_types;
+
+ return 0;
+}
+
+void
+sfc_rx_hash_fini(struct sfc_adapter *sa)
+{
+ struct sfc_rss *rss = &sa->rss;
+
+ rte_free(rss->hf_map);
+}
+
+int
+sfc_rx_hf_rte_to_efx(struct sfc_adapter *sa, uint64_t rte,
+ efx_rx_hash_type_t *efx)
+{
+ struct sfc_rss *rss = &sa->rss;
+ efx_rx_hash_type_t hash_types = 0;
+ unsigned int i;
+
+ for (i = 0; i < rss->hf_map_nb_entries; ++i) {
+ uint64_t rte_mask = rss->hf_map[i].rte;
+
+ if ((rte & rte_mask) != 0) {
+ rte &= ~rte_mask;
+ hash_types |= rss->hf_map[i].efx;
+ }
+ }
+
+ if (rte != 0) {
+ sfc_err(sa, "unsupported hash functions requested");
+ return EINVAL;
+ }
+
+ *efx = hash_types;
+
+ return 0;
+}
+
+uint64_t
+sfc_rx_hf_efx_to_rte(struct sfc_adapter *sa, efx_rx_hash_type_t efx)
+{
+ struct sfc_rss *rss = &sa->rss;
+ uint64_t rte = 0;
+ unsigned int i;
+
+ for (i = 0; i < rss->hf_map_nb_entries; ++i) {
+ efx_rx_hash_type_t hash_type = rss->hf_map[i].efx;
+
+ if ((efx & hash_type) == hash_type)
+ rte |= rss->hf_map[i].rte;
+ }
+
+ return rte;
+}
+
+static int
+sfc_rx_process_adv_conf_rss(struct sfc_adapter *sa,
+ struct rte_eth_rss_conf *conf)
+{
+ struct sfc_rss *rss = &sa->rss;
+ efx_rx_hash_type_t efx_hash_types = rss->hash_types;
+ uint64_t rss_hf = sfc_rx_hf_efx_to_rte(sa, efx_hash_types);
+ int rc;
+
+ if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
+ if ((conf->rss_hf != 0 && conf->rss_hf != rss_hf) ||
+ conf->rss_key != NULL)
+ return EINVAL;
+ }
+
+ if (conf->rss_hf != 0) {
+ rc = sfc_rx_hf_rte_to_efx(sa, conf->rss_hf, &efx_hash_types);
+ if (rc != 0)
+ return rc;
+ }
+
+ if (conf->rss_key != NULL) {
+ if (conf->rss_key_len != sizeof(rss->key)) {
+ sfc_err(sa, "RSS key size is wrong (should be %lu)",
+ sizeof(rss->key));
+ return EINVAL;
+ }
+ rte_memcpy(rss->key, conf->rss_key, sizeof(rss->key));
+ }
+
+ rss->hash_types = efx_hash_types;
+
+ return 0;
+}
+
+static int
+sfc_rx_rss_config(struct sfc_adapter *sa)
+{
+ struct sfc_rss *rss = &sa->rss;
+ int rc = 0;
+
+ if (rss->channels > 0) {
+ rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
+ rss->hash_alg, rss->hash_types,
+ B_TRUE);
+ if (rc != 0)
+ goto finish;
+
+ rc = efx_rx_scale_key_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
+ rss->key, sizeof(rss->key));
+ if (rc != 0)
+ goto finish;
+
+ rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
+ rss->tbl, RTE_DIM(rss->tbl));
+ }
+
+finish:
+ return rc;
+}
+
int
sfc_rx_start(struct sfc_adapter *sa)
{
if (rc != 0)
goto fail_rx_init;
+ rc = sfc_rx_rss_config(sa);
+ if (rc != 0)
+ goto fail_rss_config;
+
for (sw_index = 0; sw_index < sa->rxq_count; ++sw_index) {
- rc = sfc_rx_qstart(sa, sw_index);
- if (rc != 0)
- goto fail_rx_qstart;
+ if (sa->rxq_info[sw_index].rxq != NULL &&
+ (!sa->rxq_info[sw_index].deferred_start ||
+ sa->rxq_info[sw_index].deferred_started)) {
+ rc = sfc_rx_qstart(sa, sw_index);
+ if (rc != 0)
+ goto fail_rx_qstart;
+ }
}
return 0;
while (sw_index-- > 0)
sfc_rx_qstop(sa, sw_index);
+fail_rss_config:
efx_rx_fini(sa->nic);
fail_rx_init:
static int
sfc_rx_check_mode(struct sfc_adapter *sa, struct rte_eth_rxmode *rxmode)
{
+ uint64_t offloads_supported = sfc_rx_get_dev_offload_caps(sa) |
+ sfc_rx_get_queue_offload_caps(sa);
+ struct sfc_rss *rss = &sa->rss;
int rc = 0;
switch (rxmode->mq_mode) {
case ETH_MQ_RX_NONE:
/* No special checks are required */
break;
+ case ETH_MQ_RX_RSS:
+ if (rss->context_type == EFX_RX_SCALE_UNAVAILABLE) {
+ sfc_err(sa, "RSS is not available");
+ rc = EINVAL;
+ }
+ break;
default:
sfc_err(sa, "Rx multi-queue mode %u not supported",
rxmode->mq_mode);
rc = EINVAL;
}
- if (rxmode->header_split) {
- sfc_err(sa, "Header split on Rx not supported");
- rc = EINVAL;
- }
-
- if (rxmode->hw_vlan_filter) {
- sfc_err(sa, "HW VLAN filtering not supported");
- rc = EINVAL;
+ /*
+ * Requested offloads are validated against supported by ethdev,
+ * so unsupported offloads cannot be added as the result of
+ * below check.
+ */
+ if ((rxmode->offloads & DEV_RX_OFFLOAD_CHECKSUM) !=
+ (offloads_supported & DEV_RX_OFFLOAD_CHECKSUM)) {
+ sfc_warn(sa, "Rx checksum offloads cannot be disabled - always on (IPv4/TCP/UDP)");
+ rxmode->offloads |= DEV_RX_OFFLOAD_CHECKSUM;
}
- if (rxmode->hw_vlan_strip) {
- sfc_err(sa, "HW VLAN stripping not supported");
- rc = EINVAL;
+ if ((offloads_supported & DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM) &&
+ (~rxmode->offloads & DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM)) {
+ sfc_warn(sa, "Rx outer IPv4 checksum offload cannot be disabled - always on");
+ rxmode->offloads |= DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM;
}
- if (rxmode->hw_vlan_extend) {
- sfc_err(sa,
- "Q-in-Q HW VLAN stripping not supported");
- rc = EINVAL;
- }
+ return rc;
+}
- if (!rxmode->hw_strip_crc) {
- sfc_warn(sa,
- "FCS stripping control not supported - always stripped");
- rxmode->hw_strip_crc = 1;
- }
+/**
+ * Destroy excess queues that are no longer needed after reconfiguration
+ * or complete close.
+ */
+static void
+sfc_rx_fini_queues(struct sfc_adapter *sa, unsigned int nb_rx_queues)
+{
+ int sw_index;
- if (rxmode->enable_scatter) {
- sfc_err(sa, "Scatter on Rx not supported");
- rc = EINVAL;
- }
+ SFC_ASSERT(nb_rx_queues <= sa->rxq_count);
- if (rxmode->enable_lro) {
- sfc_err(sa, "LRO not supported");
- rc = EINVAL;
+ sw_index = sa->rxq_count;
+ while (--sw_index >= (int)nb_rx_queues) {
+ if (sa->rxq_info[sw_index].rxq != NULL)
+ sfc_rx_qfini(sa, sw_index);
}
- return rc;
+ sa->rxq_count = nb_rx_queues;
}
/**
* Initialize Rx subsystem.
*
- * Called at device configuration stage when number of receive queues is
+ * Called at device (re)configuration stage when number of receive queues is
* specified together with other device level receive configuration.
*
* It should be used to allocate NUMA-unaware resources.
*/
int
-sfc_rx_init(struct sfc_adapter *sa)
+sfc_rx_configure(struct sfc_adapter *sa)
{
+ struct sfc_rss *rss = &sa->rss;
struct rte_eth_conf *dev_conf = &sa->eth_dev->data->dev_conf;
- unsigned int sw_index;
+ const unsigned int nb_rx_queues = sa->eth_dev->data->nb_rx_queues;
int rc;
+ sfc_log_init(sa, "nb_rx_queues=%u (old %u)",
+ nb_rx_queues, sa->rxq_count);
+
rc = sfc_rx_check_mode(sa, &dev_conf->rxmode);
if (rc != 0)
goto fail_check_mode;
- sa->rxq_count = sa->eth_dev->data->nb_rx_queues;
+ if (nb_rx_queues == sa->rxq_count)
+ goto done;
- rc = ENOMEM;
- sa->rxq_info = rte_calloc_socket("sfc-rxqs", sa->rxq_count,
- sizeof(struct sfc_rxq_info), 0,
- sa->socket_id);
- if (sa->rxq_info == NULL)
- goto fail_rxqs_alloc;
+ if (sa->rxq_info == NULL) {
+ rc = ENOMEM;
+ sa->rxq_info = rte_calloc_socket("sfc-rxqs", nb_rx_queues,
+ sizeof(sa->rxq_info[0]), 0,
+ sa->socket_id);
+ if (sa->rxq_info == NULL)
+ goto fail_rxqs_alloc;
+ } else {
+ struct sfc_rxq_info *new_rxq_info;
+
+ if (nb_rx_queues < sa->rxq_count)
+ sfc_rx_fini_queues(sa, nb_rx_queues);
+
+ rc = ENOMEM;
+ new_rxq_info =
+ rte_realloc(sa->rxq_info,
+ nb_rx_queues * sizeof(sa->rxq_info[0]), 0);
+ if (new_rxq_info == NULL && nb_rx_queues > 0)
+ goto fail_rxqs_realloc;
+
+ sa->rxq_info = new_rxq_info;
+ if (nb_rx_queues > sa->rxq_count)
+ memset(&sa->rxq_info[sa->rxq_count], 0,
+ (nb_rx_queues - sa->rxq_count) *
+ sizeof(sa->rxq_info[0]));
+ }
- for (sw_index = 0; sw_index < sa->rxq_count; ++sw_index) {
- rc = sfc_rx_qinit_info(sa, sw_index);
+ while (sa->rxq_count < nb_rx_queues) {
+ rc = sfc_rx_qinit_info(sa, sa->rxq_count);
if (rc != 0)
goto fail_rx_qinit_info;
+
+ sa->rxq_count++;
+ }
+
+ rss->channels = (dev_conf->rxmode.mq_mode == ETH_MQ_RX_RSS) ?
+ MIN(sa->rxq_count, EFX_MAXRSS) : 0;
+
+ if (rss->channels > 0) {
+ struct rte_eth_rss_conf *adv_conf_rss;
+ unsigned int sw_index;
+
+ for (sw_index = 0; sw_index < EFX_RSS_TBL_SIZE; ++sw_index)
+ rss->tbl[sw_index] = sw_index % rss->channels;
+
+ adv_conf_rss = &dev_conf->rx_adv_conf.rss_conf;
+ rc = sfc_rx_process_adv_conf_rss(sa, adv_conf_rss);
+ if (rc != 0)
+ goto fail_rx_process_adv_conf_rss;
}
+done:
return 0;
+fail_rx_process_adv_conf_rss:
fail_rx_qinit_info:
- rte_free(sa->rxq_info);
- sa->rxq_info = NULL;
-
+fail_rxqs_realloc:
fail_rxqs_alloc:
- sa->rxq_count = 0;
+ sfc_rx_close(sa);
+
fail_check_mode:
sfc_log_init(sa, "failed %d", rc);
return rc;
/**
* Shutdown Rx subsystem.
*
- * Called at device close stage, for example, before device
- * reconfiguration or shutdown.
+ * Called at device close stage, for example, before device shutdown.
*/
void
-sfc_rx_fini(struct sfc_adapter *sa)
+sfc_rx_close(struct sfc_adapter *sa)
{
- unsigned int sw_index;
+ struct sfc_rss *rss = &sa->rss;
- sw_index = sa->rxq_count;
- while (sw_index-- > 0) {
- if (sa->rxq_info[sw_index].rxq != NULL)
- sfc_rx_qfini(sa, sw_index);
- }
+ sfc_rx_fini_queues(sa, 0);
+
+ rss->channels = 0;
rte_free(sa->rxq_info);
sa->rxq_info = NULL;
- sa->rxq_count = 0;
}
git.droids-corp.org / dpdk.git / blobdiff