-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2013-2015 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * 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.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * 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.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2013-2016 Intel Corporation
*/
#include <inttypes.h>
-#include <rte_ethdev.h>
+#include <rte_ethdev_driver.h>
#include <rte_common.h>
+#include <rte_net.h>
#include "fm10k.h"
#include "base/fm10k_type.h"
}
#endif
+#define FM10K_TX_OFFLOAD_MASK ( \
+ PKT_TX_VLAN_PKT | \
+ PKT_TX_IPV6 | \
+ PKT_TX_IPV4 | \
+ PKT_TX_IP_CKSUM | \
+ PKT_TX_L4_MASK | \
+ PKT_TX_TCP_SEG)
+
+#define FM10K_TX_OFFLOAD_NOTSUP_MASK \
+ (PKT_TX_OFFLOAD_MASK ^ FM10K_TX_OFFLOAD_MASK)
+
+/* @note: When this function is changed, make corresponding change to
+ * fm10k_dev_supported_ptypes_get()
+ */
static inline void
rx_desc_to_ol_flags(struct rte_mbuf *m, const union fm10k_rx_desc *d)
{
(FM10K_RXD_STATUS_IPCS | FM10K_RXD_STATUS_IPE)) ==
(FM10K_RXD_STATUS_IPCS | FM10K_RXD_STATUS_IPE)))
m->ol_flags |= PKT_RX_IP_CKSUM_BAD;
+ else
+ m->ol_flags |= PKT_RX_IP_CKSUM_GOOD;
if (unlikely((d->d.staterr &
(FM10K_RXD_STATUS_L4CS | FM10K_RXD_STATUS_L4E)) ==
(FM10K_RXD_STATUS_L4CS | FM10K_RXD_STATUS_L4E)))
m->ol_flags |= PKT_RX_L4_CKSUM_BAD;
-
- if (d->d.staterr & FM10K_RXD_STATUS_VEXT)
- m->ol_flags |= PKT_RX_VLAN_PKT;
-
- if (unlikely(d->d.staterr & FM10K_RXD_STATUS_HBO))
- m->ol_flags |= PKT_RX_HBUF_OVERFLOW;
-
- if (unlikely(d->d.staterr & FM10K_RXD_STATUS_RXE))
- m->ol_flags |= PKT_RX_RECIP_ERR;
+ else
+ m->ol_flags |= PKT_RX_L4_CKSUM_GOOD;
}
uint16_t
nb_pkts = RTE_MIN(nb_pkts, q->alloc_thresh);
for (count = 0; count < nb_pkts; ++count) {
+ if (!(q->hw_ring[next_dd].d.staterr & FM10K_RXD_STATUS_DD))
+ break;
mbuf = q->sw_ring[next_dd];
desc = q->hw_ring[next_dd];
- if (!(desc.d.staterr & FM10K_RXD_STATUS_DD))
- break;
#ifdef RTE_LIBRTE_FM10K_DEBUG_RX
dump_rxd(&desc);
#endif
#endif
mbuf->hash.rss = desc.d.rss;
+ /**
+ * Packets in fm10k device always carry at least one VLAN tag.
+ * For those packets coming in without VLAN tag,
+ * the port default VLAN tag will be used.
+ * So, always PKT_RX_VLAN flag is set and vlan_tci
+ * is valid for each RX packet's mbuf.
+ */
+ mbuf->ol_flags |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED;
+ mbuf->vlan_tci = desc.w.vlan;
+ /**
+ * mbuf->vlan_tci_outer is an idle field in fm10k driver,
+ * so it can be selected to store sglort value.
+ */
+ if (q->rx_ftag_en)
+ mbuf->vlan_tci_outer = rte_le_to_cpu_16(desc.w.sglort);
rx_pkts[count] = mbuf;
if (++next_dd == q->nb_desc) {
q->alloc_thresh);
if (unlikely(ret != 0)) {
- uint8_t port = q->port_id;
+ uint16_t port = q->port_id;
PMD_RX_LOG(ERR, "Failed to alloc mbuf");
/*
* Need to restore next_dd if we cannot allocate new
nb_seg = RTE_MIN(nb_pkts, q->alloc_thresh);
for (count = 0; count < nb_seg; count++) {
+ if (!(q->hw_ring[next_dd].d.staterr & FM10K_RXD_STATUS_DD))
+ break;
mbuf = q->sw_ring[next_dd];
desc = q->hw_ring[next_dd];
- if (!(desc.d.staterr & FM10K_RXD_STATUS_DD))
- break;
#ifdef RTE_LIBRTE_FM10K_DEBUG_RX
dump_rxd(&desc);
#endif
rx_desc_to_ol_flags(first_seg, &desc);
#endif
first_seg->hash.rss = desc.d.rss;
+ /**
+ * Packets in fm10k device always carry at least one VLAN tag.
+ * For those packets coming in without VLAN tag,
+ * the port default VLAN tag will be used.
+ * So, always PKT_RX_VLAN flag is set and vlan_tci
+ * is valid for each RX packet's mbuf.
+ */
+ first_seg->ol_flags |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED;
+ first_seg->vlan_tci = desc.w.vlan;
+ /**
+ * mbuf->vlan_tci_outer is an idle field in fm10k driver,
+ * so it can be selected to store sglort value.
+ */
+ if (q->rx_ftag_en)
+ first_seg->vlan_tci_outer =
+ rte_le_to_cpu_16(desc.w.sglort);
/* Prefetch data of first segment, if configured to do so. */
rte_packet_prefetch((char *)first_seg->buf_addr +
q->alloc_thresh);
if (unlikely(ret != 0)) {
- uint8_t port = q->port_id;
+ uint16_t port = q->port_id;
PMD_RX_LOG(ERR, "Failed to alloc mbuf");
/*
* Need to restore next_dd if we cannot allocate new
return nb_rcv;
}
+uint32_t
+fm10k_dev_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
+{
+#define FM10K_RXQ_SCAN_INTERVAL 4
+ volatile union fm10k_rx_desc *rxdp;
+ struct fm10k_rx_queue *rxq;
+ uint16_t desc = 0;
+
+ rxq = dev->data->rx_queues[rx_queue_id];
+ rxdp = &rxq->hw_ring[rxq->next_dd];
+ while ((desc < rxq->nb_desc) &&
+ rxdp->w.status & rte_cpu_to_le_16(FM10K_RXD_STATUS_DD)) {
+ /**
+ * Check the DD bit of a rx descriptor of each group of 4 desc,
+ * to avoid checking too frequently and downgrading performance
+ * too much.
+ */
+ desc += FM10K_RXQ_SCAN_INTERVAL;
+ rxdp += FM10K_RXQ_SCAN_INTERVAL;
+ if (rxq->next_dd + desc >= rxq->nb_desc)
+ rxdp = &rxq->hw_ring[rxq->next_dd + desc -
+ rxq->nb_desc];
+ }
+
+ return desc;
+}
+
+int
+fm10k_dev_rx_descriptor_done(void *rx_queue, uint16_t offset)
+{
+ volatile union fm10k_rx_desc *rxdp;
+ struct fm10k_rx_queue *rxq = rx_queue;
+ uint16_t desc;
+ int ret;
+
+ if (unlikely(offset >= rxq->nb_desc)) {
+ PMD_DRV_LOG(ERR, "Invalid RX descriptor offset %u", offset);
+ return 0;
+ }
+
+ desc = rxq->next_dd + offset;
+ if (desc >= rxq->nb_desc)
+ desc -= rxq->nb_desc;
+
+ rxdp = &rxq->hw_ring[desc];
+
+ ret = !!(rxdp->w.status &
+ rte_cpu_to_le_16(FM10K_RXD_STATUS_DD));
+
+ return ret;
+}
+
+int
+fm10k_dev_rx_descriptor_status(void *rx_queue, uint16_t offset)
+{
+ volatile union fm10k_rx_desc *rxdp;
+ struct fm10k_rx_queue *rxq = rx_queue;
+ uint16_t nb_hold, trigger_last;
+ uint16_t desc;
+ int ret;
+
+ if (unlikely(offset >= rxq->nb_desc)) {
+ PMD_DRV_LOG(ERR, "Invalid RX descriptor offset %u", offset);
+ return 0;
+ }
+
+ if (rxq->next_trigger < rxq->alloc_thresh)
+ trigger_last = rxq->next_trigger +
+ rxq->nb_desc - rxq->alloc_thresh;
+ else
+ trigger_last = rxq->next_trigger - rxq->alloc_thresh;
+
+ if (rxq->next_dd < trigger_last)
+ nb_hold = rxq->next_dd + rxq->nb_desc - trigger_last;
+ else
+ nb_hold = rxq->next_dd - trigger_last;
+
+ if (offset >= rxq->nb_desc - nb_hold)
+ return RTE_ETH_RX_DESC_UNAVAIL;
+
+ desc = rxq->next_dd + offset;
+ if (desc >= rxq->nb_desc)
+ desc -= rxq->nb_desc;
+
+ rxdp = &rxq->hw_ring[desc];
+
+ ret = !!(rxdp->w.status &
+ rte_cpu_to_le_16(FM10K_RXD_STATUS_DD));
+
+ return ret;
+}
+
+int
+fm10k_dev_tx_descriptor_status(void *tx_queue, uint16_t offset)
+{
+ volatile struct fm10k_tx_desc *txdp;
+ struct fm10k_tx_queue *txq = tx_queue;
+ uint16_t desc;
+ uint16_t next_rs = txq->nb_desc;
+ struct fifo rs_tracker = txq->rs_tracker;
+ struct fifo *r = &rs_tracker;
+
+ if (unlikely(offset >= txq->nb_desc))
+ return -EINVAL;
+
+ desc = txq->next_free + offset;
+ /* go to next desc that has the RS bit */
+ desc = (desc / txq->rs_thresh + 1) *
+ txq->rs_thresh - 1;
+
+ if (desc >= txq->nb_desc) {
+ desc -= txq->nb_desc;
+ if (desc >= txq->nb_desc)
+ desc -= txq->nb_desc;
+ }
+
+ r->head = r->list;
+ for ( ; r->head != r->endp; ) {
+ if (*r->head >= desc && *r->head < next_rs)
+ next_rs = *r->head;
+ ++r->head;
+ }
+
+ txdp = &txq->hw_ring[next_rs];
+ if (txdp->flags & FM10K_TXD_FLAG_DONE)
+ return RTE_ETH_TX_DESC_DONE;
+
+ return RTE_ETH_TX_DESC_FULL;
+}
+
+/*
+ * Free multiple TX mbuf at a time if they are in the same pool
+ *
+ * @txep: software desc ring index that starts to free
+ * @num: number of descs to free
+ *
+ */
+static inline void tx_free_bulk_mbuf(struct rte_mbuf **txep, int num)
+{
+ struct rte_mbuf *m, *free[RTE_FM10K_TX_MAX_FREE_BUF_SZ];
+ int i;
+ int nb_free = 0;
+
+ if (unlikely(num == 0))
+ return;
+
+ m = rte_pktmbuf_prefree_seg(txep[0]);
+ if (likely(m != NULL)) {
+ free[0] = m;
+ nb_free = 1;
+ for (i = 1; i < num; i++) {
+ m = rte_pktmbuf_prefree_seg(txep[i]);
+ if (likely(m != NULL)) {
+ if (likely(m->pool == free[0]->pool))
+ free[nb_free++] = m;
+ else {
+ rte_mempool_put_bulk(free[0]->pool,
+ (void *)free, nb_free);
+ free[0] = m;
+ nb_free = 1;
+ }
+ }
+ txep[i] = NULL;
+ }
+ rte_mempool_put_bulk(free[0]->pool, (void **)free, nb_free);
+ } else {
+ for (i = 1; i < num; i++) {
+ m = rte_pktmbuf_prefree_seg(txep[i]);
+ if (m != NULL)
+ rte_mempool_put(m->pool, m);
+ txep[i] = NULL;
+ }
+ }
+}
+
static inline void tx_free_descriptors(struct fm10k_tx_queue *q)
{
uint16_t next_rs, count = 0;
* including nb_desc */
if (q->last_free > next_rs) {
count = q->nb_desc - q->last_free;
- while (q->last_free < q->nb_desc) {
- rte_pktmbuf_free_seg(q->sw_ring[q->last_free]);
- q->sw_ring[q->last_free] = NULL;
- ++q->last_free;
- }
+ tx_free_bulk_mbuf(&q->sw_ring[q->last_free], count);
q->last_free = 0;
}
q->nb_free += count + (next_rs + 1 - q->last_free);
/* free buffers from last_free, up to and including next_rs */
- while (q->last_free <= next_rs) {
- rte_pktmbuf_free_seg(q->sw_ring[q->last_free]);
- q->sw_ring[q->last_free] = NULL;
- ++q->last_free;
+ if (q->last_free <= next_rs) {
+ count = next_rs - q->last_free + 1;
+ tx_free_bulk_mbuf(&q->sw_ring[q->last_free], count);
+ q->last_free += count;
}
if (q->last_free == q->nb_desc)
static inline void tx_xmit_pkt(struct fm10k_tx_queue *q, struct rte_mbuf *mb)
{
uint16_t last_id;
- uint8_t flags;
+ uint8_t flags, hdrlen;
/* always set the LAST flag on the last descriptor used to
* transmit the packet */
q->nb_free -= mb->nb_segs;
q->hw_ring[q->next_free].flags = 0;
+ if (q->tx_ftag_en)
+ q->hw_ring[q->next_free].flags |= FM10K_TXD_FLAG_FTAG;
/* set checksum flags on first descriptor of packet. SCTP checksum
* offload is not supported, but we do not explicitly check for this
* case in favor of greatly simplified processing. */
- if (mb->ol_flags & (PKT_TX_IP_CKSUM | PKT_TX_L4_MASK))
+ if (mb->ol_flags & (PKT_TX_IP_CKSUM | PKT_TX_L4_MASK | PKT_TX_TCP_SEG))
q->hw_ring[q->next_free].flags |= FM10K_TXD_FLAG_CSUM;
/* set vlan if requested */
if (mb->ol_flags & PKT_TX_VLAN_PKT)
q->hw_ring[q->next_free].vlan = mb->vlan_tci;
+ else
+ q->hw_ring[q->next_free].vlan = 0;
q->sw_ring[q->next_free] = mb;
q->hw_ring[q->next_free].buffer_addr =
rte_cpu_to_le_64(MBUF_DMA_ADDR(mb));
q->hw_ring[q->next_free].buflen =
rte_cpu_to_le_16(rte_pktmbuf_data_len(mb));
+
+ if (mb->ol_flags & PKT_TX_TCP_SEG) {
+ hdrlen = mb->l2_len + mb->l3_len + mb->l4_len;
+ hdrlen += (mb->ol_flags & PKT_TX_TUNNEL_MASK) ?
+ mb->outer_l2_len + mb->outer_l3_len : 0;
+ if (q->hw_ring[q->next_free].flags & FM10K_TXD_FLAG_FTAG)
+ hdrlen += sizeof(struct fm10k_ftag);
+
+ if (likely((hdrlen >= FM10K_TSO_MIN_HEADERLEN) &&
+ (hdrlen <= FM10K_TSO_MAX_HEADERLEN) &&
+ (mb->tso_segsz >= FM10K_TSO_MINMSS))) {
+ q->hw_ring[q->next_free].mss = mb->tso_segsz;
+ q->hw_ring[q->next_free].hdrlen = hdrlen;
+ }
+ }
+
if (++q->next_free == q->nb_desc)
q->next_free = 0;
q->next_free = 0;
}
- q->hw_ring[last_id].flags = flags;
+ q->hw_ring[last_id].flags |= flags;
}
uint16_t
return count;
}
+
+uint16_t
+fm10k_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts)
+{
+ int i, ret;
+ struct rte_mbuf *m;
+
+ for (i = 0; i < nb_pkts; i++) {
+ m = tx_pkts[i];
+
+ if ((m->ol_flags & PKT_TX_TCP_SEG) &&
+ (m->tso_segsz < FM10K_TSO_MINMSS)) {
+ rte_errno = EINVAL;
+ return i;
+ }
+
+ if (m->ol_flags & FM10K_TX_OFFLOAD_NOTSUP_MASK) {
+ rte_errno = ENOTSUP;
+ return i;
+ }
+
+#ifdef RTE_LIBRTE_ETHDEV_DEBUG
+ ret = rte_validate_tx_offload(m);
+ if (ret != 0) {
+ rte_errno = -ret;
+ return i;
+ }
+#endif
+ ret = rte_net_intel_cksum_prepare(m);
+ if (ret != 0) {
+ rte_errno = -ret;
+ return i;
+ }
+ }
+
+ return i;
+}
git.droids-corp.org / dpdk.git / blobdiff