--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright (c) 2015 - 2016 CESNET
+ * 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 CESNET 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.
+ */
+
+#include <stdint.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <err.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+
+#include <libsze2.h>
+
+#include <rte_mbuf.h>
+#include <rte_ethdev.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_kvargs.h>
+#include <rte_dev.h>
+#include <rte_atomic.h>
+
+#include "rte_eth_szedata2.h"
+
+#define RTE_ETH_SZEDATA2_MAX_RX_QUEUES 32
+#define RTE_ETH_SZEDATA2_MAX_TX_QUEUES 32
+#define RTE_ETH_SZEDATA2_TX_LOCK_SIZE (32 * 1024 * 1024)
+
+/**
+ * size of szedata2_packet header with alignment
+ */
+#define RTE_SZE2_PACKET_HEADER_SIZE_ALIGNED 8
+
+#define RTE_SZEDATA2_DRIVER_NAME "rte_szedata2_pmd"
+#define RTE_SZEDATA2_PCI_DRIVER_NAME "rte_szedata2_pmd"
+
+#define SZEDATA2_DEV_PATH_FMT "/dev/szedataII%u"
+
+struct szedata2_rx_queue {
+ struct szedata *sze;
+ uint8_t rx_channel;
+ uint8_t in_port;
+ struct rte_mempool *mb_pool;
+ volatile uint64_t rx_pkts;
+ volatile uint64_t rx_bytes;
+ volatile uint64_t err_pkts;
+};
+
+struct szedata2_tx_queue {
+ struct szedata *sze;
+ uint8_t tx_channel;
+ volatile uint64_t tx_pkts;
+ volatile uint64_t tx_bytes;
+ volatile uint64_t err_pkts;
+};
+
+struct pmd_internals {
+ struct szedata2_rx_queue rx_queue[RTE_ETH_SZEDATA2_MAX_RX_QUEUES];
+ struct szedata2_tx_queue tx_queue[RTE_ETH_SZEDATA2_MAX_TX_QUEUES];
+ uint16_t max_rx_queues;
+ uint16_t max_tx_queues;
+ char sze_dev[PATH_MAX];
+};
+
+static struct ether_addr eth_addr = {
+ .addr_bytes = { 0x00, 0x11, 0x17, 0x00, 0x00, 0x00 }
+};
+
+static uint16_t
+eth_szedata2_rx(void *queue,
+ struct rte_mbuf **bufs,
+ uint16_t nb_pkts)
+{
+ unsigned int i;
+ struct rte_mbuf *mbuf;
+ struct szedata2_rx_queue *sze_q = queue;
+ struct rte_pktmbuf_pool_private *mbp_priv;
+ uint16_t num_rx = 0;
+ uint16_t buf_size;
+ uint16_t sg_size;
+ uint16_t hw_size;
+ uint16_t packet_size;
+ uint64_t num_bytes = 0;
+ struct szedata *sze = sze_q->sze;
+ uint8_t *header_ptr = NULL; /* header of packet */
+ uint8_t *packet_ptr1 = NULL;
+ uint8_t *packet_ptr2 = NULL;
+ uint16_t packet_len1 = 0;
+ uint16_t packet_len2 = 0;
+ uint16_t hw_data_align;
+
+ if (unlikely(sze_q->sze == NULL || nb_pkts == 0))
+ return 0;
+
+ /*
+ * Reads the given number of packets from szedata2 channel given
+ * by queue and copies the packet data into a newly allocated mbuf
+ * to return.
+ */
+ for (i = 0; i < nb_pkts; i++) {
+ mbuf = rte_pktmbuf_alloc(sze_q->mb_pool);
+
+ if (unlikely(mbuf == NULL))
+ break;
+
+ /* get the next sze packet */
+ if (sze->ct_rx_lck != NULL && !sze->ct_rx_rem_bytes &&
+ sze->ct_rx_lck->next == NULL) {
+ /* unlock old data */
+ szedata_rx_unlock_data(sze_q->sze, sze->ct_rx_lck_orig);
+ sze->ct_rx_lck_orig = NULL;
+ sze->ct_rx_lck = NULL;
+ }
+
+ if (!sze->ct_rx_rem_bytes && sze->ct_rx_lck_orig == NULL) {
+ /* nothing to read, lock new data */
+ sze->ct_rx_lck = szedata_rx_lock_data(sze_q->sze, ~0U);
+ sze->ct_rx_lck_orig = sze->ct_rx_lck;
+
+ if (sze->ct_rx_lck == NULL) {
+ /* nothing to lock */
+ rte_pktmbuf_free(mbuf);
+ break;
+ }
+
+ sze->ct_rx_cur_ptr = sze->ct_rx_lck->start;
+ sze->ct_rx_rem_bytes = sze->ct_rx_lck->len;
+
+ if (!sze->ct_rx_rem_bytes) {
+ rte_pktmbuf_free(mbuf);
+ break;
+ }
+ }
+
+ if (sze->ct_rx_rem_bytes < RTE_SZE2_PACKET_HEADER_SIZE) {
+ /*
+ * cut in header
+ * copy parts of header to merge buffer
+ */
+ if (sze->ct_rx_lck->next == NULL) {
+ rte_pktmbuf_free(mbuf);
+ break;
+ }
+
+ /* copy first part of header */
+ rte_memcpy(sze->ct_rx_buffer, sze->ct_rx_cur_ptr,
+ sze->ct_rx_rem_bytes);
+
+ /* copy second part of header */
+ sze->ct_rx_lck = sze->ct_rx_lck->next;
+ sze->ct_rx_cur_ptr = sze->ct_rx_lck->start;
+ rte_memcpy(sze->ct_rx_buffer + sze->ct_rx_rem_bytes,
+ sze->ct_rx_cur_ptr,
+ RTE_SZE2_PACKET_HEADER_SIZE -
+ sze->ct_rx_rem_bytes);
+
+ sze->ct_rx_cur_ptr += RTE_SZE2_PACKET_HEADER_SIZE -
+ sze->ct_rx_rem_bytes;
+ sze->ct_rx_rem_bytes = sze->ct_rx_lck->len -
+ RTE_SZE2_PACKET_HEADER_SIZE +
+ sze->ct_rx_rem_bytes;
+
+ header_ptr = (uint8_t *)sze->ct_rx_buffer;
+ } else {
+ /* not cut */
+ header_ptr = (uint8_t *)sze->ct_rx_cur_ptr;
+ sze->ct_rx_cur_ptr += RTE_SZE2_PACKET_HEADER_SIZE;
+ sze->ct_rx_rem_bytes -= RTE_SZE2_PACKET_HEADER_SIZE;
+ }
+
+ sg_size = le16toh(*((uint16_t *)header_ptr));
+ hw_size = le16toh(*(((uint16_t *)header_ptr) + 1));
+ packet_size = sg_size -
+ RTE_SZE2_ALIGN8(RTE_SZE2_PACKET_HEADER_SIZE + hw_size);
+
+
+ /* checks if packet all right */
+ if (!sg_size)
+ errx(5, "Zero segsize");
+
+ /* check sg_size and hwsize */
+ if (hw_size > sg_size - RTE_SZE2_PACKET_HEADER_SIZE) {
+ errx(10, "Hwsize bigger than expected. Segsize: %d, "
+ "hwsize: %d", sg_size, hw_size);
+ }
+
+ hw_data_align =
+ RTE_SZE2_ALIGN8(RTE_SZE2_PACKET_HEADER_SIZE + hw_size) -
+ RTE_SZE2_PACKET_HEADER_SIZE;
+
+ if (sze->ct_rx_rem_bytes >=
+ (uint16_t)(sg_size -
+ RTE_SZE2_PACKET_HEADER_SIZE)) {
+ /* no cut */
+ /* one packet ready - go to another */
+ packet_ptr1 = sze->ct_rx_cur_ptr + hw_data_align;
+ packet_len1 = packet_size;
+ packet_ptr2 = NULL;
+ packet_len2 = 0;
+
+ sze->ct_rx_cur_ptr += RTE_SZE2_ALIGN8(sg_size) -
+ RTE_SZE2_PACKET_HEADER_SIZE;
+ sze->ct_rx_rem_bytes -= RTE_SZE2_ALIGN8(sg_size) -
+ RTE_SZE2_PACKET_HEADER_SIZE;
+ } else {
+ /* cut in data */
+ if (sze->ct_rx_lck->next == NULL) {
+ errx(6, "Need \"next\" lock, "
+ "but it is missing: %u",
+ sze->ct_rx_rem_bytes);
+ }
+
+ /* skip hw data */
+ if (sze->ct_rx_rem_bytes <= hw_data_align) {
+ uint16_t rem_size = hw_data_align -
+ sze->ct_rx_rem_bytes;
+
+ /* MOVE to next lock */
+ sze->ct_rx_lck = sze->ct_rx_lck->next;
+ sze->ct_rx_cur_ptr =
+ (void *)(((uint8_t *)
+ (sze->ct_rx_lck->start)) + rem_size);
+
+ packet_ptr1 = sze->ct_rx_cur_ptr;
+ packet_len1 = packet_size;
+ packet_ptr2 = NULL;
+ packet_len2 = 0;
+
+ sze->ct_rx_cur_ptr +=
+ RTE_SZE2_ALIGN8(packet_size);
+ sze->ct_rx_rem_bytes = sze->ct_rx_lck->len -
+ rem_size - RTE_SZE2_ALIGN8(packet_size);
+ } else {
+ /* get pointer and length from first part */
+ packet_ptr1 = sze->ct_rx_cur_ptr +
+ hw_data_align;
+ packet_len1 = sze->ct_rx_rem_bytes -
+ hw_data_align;
+
+ /* MOVE to next lock */
+ sze->ct_rx_lck = sze->ct_rx_lck->next;
+ sze->ct_rx_cur_ptr = sze->ct_rx_lck->start;
+
+ /* get pointer and length from second part */
+ packet_ptr2 = sze->ct_rx_cur_ptr;
+ packet_len2 = packet_size - packet_len1;
+
+ sze->ct_rx_cur_ptr +=
+ RTE_SZE2_ALIGN8(packet_size) -
+ packet_len1;
+ sze->ct_rx_rem_bytes = sze->ct_rx_lck->len -
+ (RTE_SZE2_ALIGN8(packet_size) -
+ packet_len1);
+ }
+ }
+
+ if (unlikely(packet_ptr1 == NULL)) {
+ rte_pktmbuf_free(mbuf);
+ break;
+ }
+
+ /* get the space available for data in the mbuf */
+ mbp_priv = rte_mempool_get_priv(sze_q->mb_pool);
+ buf_size = (uint16_t)(mbp_priv->mbuf_data_room_size -
+ RTE_PKTMBUF_HEADROOM);
+
+ if (packet_size <= buf_size) {
+ /* sze packet will fit in one mbuf, go ahead and copy */
+ rte_memcpy(rte_pktmbuf_mtod(mbuf, void *),
+ packet_ptr1, packet_len1);
+ if (packet_ptr2 != NULL) {
+ rte_memcpy((void *)(rte_pktmbuf_mtod(mbuf,
+ uint8_t *) + packet_len1),
+ packet_ptr2, packet_len2);
+ }
+ mbuf->data_len = (uint16_t)packet_size;
+
+ mbuf->pkt_len = packet_size;
+ mbuf->port = sze_q->in_port;
+ bufs[num_rx] = mbuf;
+ num_rx++;
+ num_bytes += packet_size;
+ } else {
+ /*
+ * sze packet will not fit in one mbuf,
+ * scattered mode is not enabled, drop packet
+ */
+ RTE_LOG(ERR, PMD,
+ "SZE segment %d bytes will not fit in one mbuf "
+ "(%d bytes), scattered mode is not enabled, "
+ "drop packet!!\n",
+ packet_size, buf_size);
+ rte_pktmbuf_free(mbuf);
+ }
+ }
+
+ sze_q->rx_pkts += num_rx;
+ sze_q->rx_bytes += num_bytes;
+ return num_rx;
+}
+
+static uint16_t
+eth_szedata2_rx_scattered(void *queue,
+ struct rte_mbuf **bufs,
+ uint16_t nb_pkts)
+{
+ unsigned int i;
+ struct rte_mbuf *mbuf;
+ struct szedata2_rx_queue *sze_q = queue;
+ struct rte_pktmbuf_pool_private *mbp_priv;
+ uint16_t num_rx = 0;
+ uint16_t buf_size;
+ uint16_t sg_size;
+ uint16_t hw_size;
+ uint16_t packet_size;
+ uint64_t num_bytes = 0;
+ struct szedata *sze = sze_q->sze;
+ uint8_t *header_ptr = NULL; /* header of packet */
+ uint8_t *packet_ptr1 = NULL;
+ uint8_t *packet_ptr2 = NULL;
+ uint16_t packet_len1 = 0;
+ uint16_t packet_len2 = 0;
+ uint16_t hw_data_align;
+
+ if (unlikely(sze_q->sze == NULL || nb_pkts == 0))
+ return 0;
+
+ /*
+ * Reads the given number of packets from szedata2 channel given
+ * by queue and copies the packet data into a newly allocated mbuf
+ * to return.
+ */
+ for (i = 0; i < nb_pkts; i++) {
+ const struct szedata_lock *ct_rx_lck_backup;
+ unsigned int ct_rx_rem_bytes_backup;
+ unsigned char *ct_rx_cur_ptr_backup;
+
+ /* get the next sze packet */
+ if (sze->ct_rx_lck != NULL && !sze->ct_rx_rem_bytes &&
+ sze->ct_rx_lck->next == NULL) {
+ /* unlock old data */
+ szedata_rx_unlock_data(sze_q->sze, sze->ct_rx_lck_orig);
+ sze->ct_rx_lck_orig = NULL;
+ sze->ct_rx_lck = NULL;
+ }
+
+ /*
+ * Store items from sze structure which can be changed
+ * before mbuf allocating. Use these items in case of mbuf
+ * allocating failure.
+ */
+ ct_rx_lck_backup = sze->ct_rx_lck;
+ ct_rx_rem_bytes_backup = sze->ct_rx_rem_bytes;
+ ct_rx_cur_ptr_backup = sze->ct_rx_cur_ptr;
+
+ if (!sze->ct_rx_rem_bytes && sze->ct_rx_lck_orig == NULL) {
+ /* nothing to read, lock new data */
+ sze->ct_rx_lck = szedata_rx_lock_data(sze_q->sze, ~0U);
+ sze->ct_rx_lck_orig = sze->ct_rx_lck;
+
+ /*
+ * Backup items from sze structure must be updated
+ * after locking to contain pointers to new locks.
+ */
+ ct_rx_lck_backup = sze->ct_rx_lck;
+ ct_rx_rem_bytes_backup = sze->ct_rx_rem_bytes;
+ ct_rx_cur_ptr_backup = sze->ct_rx_cur_ptr;
+
+ if (sze->ct_rx_lck == NULL)
+ /* nothing to lock */
+ break;
+
+ sze->ct_rx_cur_ptr = sze->ct_rx_lck->start;
+ sze->ct_rx_rem_bytes = sze->ct_rx_lck->len;
+
+ if (!sze->ct_rx_rem_bytes)
+ break;
+ }
+
+ if (sze->ct_rx_rem_bytes < RTE_SZE2_PACKET_HEADER_SIZE) {
+ /*
+ * cut in header - copy parts of header to merge buffer
+ */
+ if (sze->ct_rx_lck->next == NULL)
+ break;
+
+ /* copy first part of header */
+ rte_memcpy(sze->ct_rx_buffer, sze->ct_rx_cur_ptr,
+ sze->ct_rx_rem_bytes);
+
+ /* copy second part of header */
+ sze->ct_rx_lck = sze->ct_rx_lck->next;
+ sze->ct_rx_cur_ptr = sze->ct_rx_lck->start;
+ rte_memcpy(sze->ct_rx_buffer + sze->ct_rx_rem_bytes,
+ sze->ct_rx_cur_ptr,
+ RTE_SZE2_PACKET_HEADER_SIZE -
+ sze->ct_rx_rem_bytes);
+
+ sze->ct_rx_cur_ptr += RTE_SZE2_PACKET_HEADER_SIZE -
+ sze->ct_rx_rem_bytes;
+ sze->ct_rx_rem_bytes = sze->ct_rx_lck->len -
+ RTE_SZE2_PACKET_HEADER_SIZE +
+ sze->ct_rx_rem_bytes;
+
+ header_ptr = (uint8_t *)sze->ct_rx_buffer;
+ } else {
+ /* not cut */
+ header_ptr = (uint8_t *)sze->ct_rx_cur_ptr;
+ sze->ct_rx_cur_ptr += RTE_SZE2_PACKET_HEADER_SIZE;
+ sze->ct_rx_rem_bytes -= RTE_SZE2_PACKET_HEADER_SIZE;
+ }
+
+ sg_size = le16toh(*((uint16_t *)header_ptr));
+ hw_size = le16toh(*(((uint16_t *)header_ptr) + 1));
+ packet_size = sg_size -
+ RTE_SZE2_ALIGN8(RTE_SZE2_PACKET_HEADER_SIZE + hw_size);
+
+
+ /* checks if packet all right */
+ if (!sg_size)
+ errx(5, "Zero segsize");
+
+ /* check sg_size and hwsize */
+ if (hw_size > sg_size - RTE_SZE2_PACKET_HEADER_SIZE) {
+ errx(10, "Hwsize bigger than expected. Segsize: %d, "
+ "hwsize: %d", sg_size, hw_size);
+ }
+
+ hw_data_align =
+ RTE_SZE2_ALIGN8((RTE_SZE2_PACKET_HEADER_SIZE +
+ hw_size)) - RTE_SZE2_PACKET_HEADER_SIZE;
+
+ if (sze->ct_rx_rem_bytes >=
+ (uint16_t)(sg_size -
+ RTE_SZE2_PACKET_HEADER_SIZE)) {
+ /* no cut */
+ /* one packet ready - go to another */
+ packet_ptr1 = sze->ct_rx_cur_ptr + hw_data_align;
+ packet_len1 = packet_size;
+ packet_ptr2 = NULL;
+ packet_len2 = 0;
+
+ sze->ct_rx_cur_ptr += RTE_SZE2_ALIGN8(sg_size) -
+ RTE_SZE2_PACKET_HEADER_SIZE;
+ sze->ct_rx_rem_bytes -= RTE_SZE2_ALIGN8(sg_size) -
+ RTE_SZE2_PACKET_HEADER_SIZE;
+ } else {
+ /* cut in data */
+ if (sze->ct_rx_lck->next == NULL) {
+ errx(6, "Need \"next\" lock, but it is "
+ "missing: %u", sze->ct_rx_rem_bytes);
+ }
+
+ /* skip hw data */
+ if (sze->ct_rx_rem_bytes <= hw_data_align) {
+ uint16_t rem_size = hw_data_align -
+ sze->ct_rx_rem_bytes;
+
+ /* MOVE to next lock */
+ sze->ct_rx_lck = sze->ct_rx_lck->next;
+ sze->ct_rx_cur_ptr =
+ (void *)(((uint8_t *)
+ (sze->ct_rx_lck->start)) + rem_size);
+
+ packet_ptr1 = sze->ct_rx_cur_ptr;
+ packet_len1 = packet_size;
+ packet_ptr2 = NULL;
+ packet_len2 = 0;
+
+ sze->ct_rx_cur_ptr +=
+ RTE_SZE2_ALIGN8(packet_size);
+ sze->ct_rx_rem_bytes = sze->ct_rx_lck->len -
+ rem_size - RTE_SZE2_ALIGN8(packet_size);
+ } else {
+ /* get pointer and length from first part */
+ packet_ptr1 = sze->ct_rx_cur_ptr +
+ hw_data_align;
+ packet_len1 = sze->ct_rx_rem_bytes -
+ hw_data_align;
+
+ /* MOVE to next lock */
+ sze->ct_rx_lck = sze->ct_rx_lck->next;
+ sze->ct_rx_cur_ptr = sze->ct_rx_lck->start;
+
+ /* get pointer and length from second part */
+ packet_ptr2 = sze->ct_rx_cur_ptr;
+ packet_len2 = packet_size - packet_len1;
+
+ sze->ct_rx_cur_ptr +=
+ RTE_SZE2_ALIGN8(packet_size) -
+ packet_len1;
+ sze->ct_rx_rem_bytes = sze->ct_rx_lck->len -
+ (RTE_SZE2_ALIGN8(packet_size) -
+ packet_len1);
+ }
+ }
+
+ if (unlikely(packet_ptr1 == NULL))
+ break;
+
+ mbuf = rte_pktmbuf_alloc(sze_q->mb_pool);
+
+ if (unlikely(mbuf == NULL)) {
+ /*
+ * Restore items from sze structure to state after
+ * unlocking (eventually locking).
+ */
+ sze->ct_rx_lck = ct_rx_lck_backup;
+ sze->ct_rx_rem_bytes = ct_rx_rem_bytes_backup;
+ sze->ct_rx_cur_ptr = ct_rx_cur_ptr_backup;
+ break;
+ }
+
+ /* get the space available for data in the mbuf */
+ mbp_priv = rte_mempool_get_priv(sze_q->mb_pool);
+ buf_size = (uint16_t)(mbp_priv->mbuf_data_room_size -
+ RTE_PKTMBUF_HEADROOM);
+
+ if (packet_size <= buf_size) {
+ /* sze packet will fit in one mbuf, go ahead and copy */
+ rte_memcpy(rte_pktmbuf_mtod(mbuf, void *),
+ packet_ptr1, packet_len1);
+ if (packet_ptr2 != NULL) {
+ rte_memcpy((void *)
+ (rte_pktmbuf_mtod(mbuf, uint8_t *) +
+ packet_len1), packet_ptr2, packet_len2);
+ }
+ mbuf->data_len = (uint16_t)packet_size;
+ } else {
+ /*
+ * sze packet will not fit in one mbuf,
+ * scatter packet into more mbufs
+ */
+ struct rte_mbuf *m = mbuf;
+ uint16_t len = rte_pktmbuf_tailroom(mbuf);
+
+ /* copy first part of packet */
+ /* fill first mbuf */
+ rte_memcpy(rte_pktmbuf_append(mbuf, len), packet_ptr1,
+ len);
+ packet_len1 -= len;
+ packet_ptr1 = ((uint8_t *)packet_ptr1) + len;
+
+ while (packet_len1 > 0) {
+ /* fill new mbufs */
+ m->next = rte_pktmbuf_alloc(sze_q->mb_pool);
+
+ if (unlikely(m->next == NULL)) {
+ rte_pktmbuf_free(mbuf);
+ /*
+ * Restore items from sze structure
+ * to state after unlocking (eventually
+ * locking).
+ */
+ sze->ct_rx_lck = ct_rx_lck_backup;
+ sze->ct_rx_rem_bytes =
+ ct_rx_rem_bytes_backup;
+ sze->ct_rx_cur_ptr =
+ ct_rx_cur_ptr_backup;
+ goto finish;
+ }
+
+ m = m->next;
+
+ len = RTE_MIN(rte_pktmbuf_tailroom(m),
+ packet_len1);
+ rte_memcpy(rte_pktmbuf_append(mbuf, len),
+ packet_ptr1, len);
+
+ (mbuf->nb_segs)++;
+ packet_len1 -= len;
+ packet_ptr1 = ((uint8_t *)packet_ptr1) + len;
+ }
+
+ if (packet_ptr2 != NULL) {
+ /* copy second part of packet, if exists */
+ /* fill the rest of currently last mbuf */
+ len = rte_pktmbuf_tailroom(m);
+ rte_memcpy(rte_pktmbuf_append(mbuf, len),
+ packet_ptr2, len);
+ packet_len2 -= len;
+ packet_ptr2 = ((uint8_t *)packet_ptr2) + len;
+
+ while (packet_len2 > 0) {
+ /* fill new mbufs */
+ m->next = rte_pktmbuf_alloc(
+ sze_q->mb_pool);
+
+ if (unlikely(m->next == NULL)) {
+ rte_pktmbuf_free(mbuf);
+ /*
+ * Restore items from sze
+ * structure to state after
+ * unlocking (eventually
+ * locking).
+ */
+ sze->ct_rx_lck =
+ ct_rx_lck_backup;
+ sze->ct_rx_rem_bytes =
+ ct_rx_rem_bytes_backup;
+ sze->ct_rx_cur_ptr =
+ ct_rx_cur_ptr_backup;
+ goto finish;
+ }
+
+ m = m->next;
+
+ len = RTE_MIN(rte_pktmbuf_tailroom(m),
+ packet_len2);
+ rte_memcpy(
+ rte_pktmbuf_append(mbuf, len),
+ packet_ptr2, len);
+
+ (mbuf->nb_segs)++;
+ packet_len2 -= len;
+ packet_ptr2 = ((uint8_t *)packet_ptr2) +
+ len;
+ }
+ }
+ }
+ mbuf->pkt_len = packet_size;
+ mbuf->port = sze_q->in_port;
+ bufs[num_rx] = mbuf;
+ num_rx++;
+ num_bytes += packet_size;
+ }
+
+finish:
+ sze_q->rx_pkts += num_rx;
+ sze_q->rx_bytes += num_bytes;
+ return num_rx;
+}
+
+static uint16_t
+eth_szedata2_tx(void *queue,
+ struct rte_mbuf **bufs,
+ uint16_t nb_pkts)
+{
+ struct rte_mbuf *mbuf;
+ struct szedata2_tx_queue *sze_q = queue;
+ uint16_t num_tx = 0;
+ uint64_t num_bytes = 0;
+
+ const struct szedata_lock *lck;
+ uint32_t lock_size;
+ uint32_t lock_size2;
+ void *dst;
+ uint32_t pkt_len;
+ uint32_t hwpkt_len;
+ uint32_t unlock_size;
+ uint32_t rem_len;
+ uint8_t mbuf_segs;
+ uint16_t pkt_left = nb_pkts;
+
+ if (sze_q->sze == NULL || nb_pkts == 0)
+ return 0;
+
+ while (pkt_left > 0) {
+ unlock_size = 0;
+ lck = szedata_tx_lock_data(sze_q->sze,
+ RTE_ETH_SZEDATA2_TX_LOCK_SIZE,
+ sze_q->tx_channel);
+ if (lck == NULL)
+ continue;
+
+ dst = lck->start;
+ lock_size = lck->len;
+ lock_size2 = lck->next ? lck->next->len : 0;
+
+next_packet:
+ mbuf = bufs[nb_pkts - pkt_left];
+
+ pkt_len = mbuf->pkt_len;
+ mbuf_segs = mbuf->nb_segs;
+
+ hwpkt_len = RTE_SZE2_PACKET_HEADER_SIZE_ALIGNED +
+ RTE_SZE2_ALIGN8(pkt_len);
+
+ if (lock_size + lock_size2 < hwpkt_len) {
+ szedata_tx_unlock_data(sze_q->sze, lck, unlock_size);
+ continue;
+ }
+
+ num_bytes += pkt_len;
+
+ if (lock_size > hwpkt_len) {
+ void *tmp_dst;
+
+ rem_len = 0;
+
+ /* write packet length at first 2 bytes in 8B header */
+ *((uint16_t *)dst) = htole16(
+ RTE_SZE2_PACKET_HEADER_SIZE_ALIGNED +
+ pkt_len);
+ *(((uint16_t *)dst) + 1) = htole16(0);
+
+ /* copy packet from mbuf */
+ tmp_dst = ((uint8_t *)(dst)) +
+ RTE_SZE2_PACKET_HEADER_SIZE_ALIGNED;
+ if (mbuf_segs == 1) {
+ /*
+ * non-scattered packet,
+ * transmit from one mbuf
+ */
+ rte_memcpy(tmp_dst,
+ rte_pktmbuf_mtod(mbuf, const void *),
+ pkt_len);
+ } else {
+ /* scattered packet, transmit from more mbufs */
+ struct rte_mbuf *m = mbuf;
+ while (m) {
+ rte_memcpy(tmp_dst,
+ rte_pktmbuf_mtod(m,
+ const void *),
+ m->data_len);
+ tmp_dst = ((uint8_t *)(tmp_dst)) +
+ m->data_len;
+ m = m->next;
+ }
+ }
+
+
+ dst = ((uint8_t *)dst) + hwpkt_len;
+ unlock_size += hwpkt_len;
+ lock_size -= hwpkt_len;
+
+ rte_pktmbuf_free(mbuf);
+ num_tx++;
+ pkt_left--;
+ if (pkt_left == 0) {
+ szedata_tx_unlock_data(sze_q->sze, lck,
+ unlock_size);
+ break;
+ }
+ goto next_packet;
+ } else if (lock_size + lock_size2 >= hwpkt_len) {
+ void *tmp_dst;
+ uint16_t write_len;
+
+ /* write packet length at first 2 bytes in 8B header */
+ *((uint16_t *)dst) =
+ htole16(RTE_SZE2_PACKET_HEADER_SIZE_ALIGNED +
+ pkt_len);
+ *(((uint16_t *)dst) + 1) = htole16(0);
+
+ /*
+ * If the raw packet (pkt_len) is smaller than lock_size
+ * get the correct length for memcpy
+ */
+ write_len =
+ pkt_len < lock_size -
+ RTE_SZE2_PACKET_HEADER_SIZE_ALIGNED ?
+ pkt_len :
+ lock_size - RTE_SZE2_PACKET_HEADER_SIZE_ALIGNED;
+
+ rem_len = hwpkt_len - lock_size;
+
+ tmp_dst = ((uint8_t *)(dst)) +
+ RTE_SZE2_PACKET_HEADER_SIZE_ALIGNED;
+ if (mbuf_segs == 1) {
+ /*
+ * non-scattered packet,
+ * transmit from one mbuf
+ */
+ /* copy part of packet to first area */
+ rte_memcpy(tmp_dst,
+ rte_pktmbuf_mtod(mbuf, const void *),
+ write_len);
+
+ if (lck->next)
+ dst = lck->next->start;
+
+ /* copy part of packet to second area */
+ rte_memcpy(dst,
+ (const void *)(rte_pktmbuf_mtod(mbuf,
+ const uint8_t *) +
+ write_len), pkt_len - write_len);
+ } else {
+ /* scattered packet, transmit from more mbufs */
+ struct rte_mbuf *m = mbuf;
+ uint16_t written = 0;
+ uint16_t to_write = 0;
+ bool new_mbuf = true;
+ uint16_t write_off = 0;
+
+ /* copy part of packet to first area */
+ while (m && written < write_len) {
+ to_write = RTE_MIN(m->data_len,
+ write_len - written);
+ rte_memcpy(tmp_dst,
+ rte_pktmbuf_mtod(m,
+ const void *),
+ to_write);
+
+ tmp_dst = ((uint8_t *)(tmp_dst)) +
+ to_write;
+ if (m->data_len <= write_len -
+ written) {
+ m = m->next;
+ new_mbuf = true;
+ } else {
+ new_mbuf = false;
+ }
+ written += to_write;
+ }
+
+ if (lck->next)
+ dst = lck->next->start;
+
+ tmp_dst = dst;
+ written = 0;
+ write_off = new_mbuf ? 0 : to_write;
+
+ /* copy part of packet to second area */
+ while (m && written < pkt_len - write_len) {
+ rte_memcpy(tmp_dst, (const void *)
+ (rte_pktmbuf_mtod(m,
+ uint8_t *) + write_off),
+ m->data_len - write_off);
+
+ tmp_dst = ((uint8_t *)(tmp_dst)) +
+ (m->data_len - write_off);
+ written += m->data_len - write_off;
+ m = m->next;
+ write_off = 0;
+ }
+ }
+
+ dst = ((uint8_t *)dst) + rem_len;
+ unlock_size += hwpkt_len;
+ lock_size = lock_size2 - rem_len;
+ lock_size2 = 0;
+
+ rte_pktmbuf_free(mbuf);
+ num_tx++;
+ }
+
+ szedata_tx_unlock_data(sze_q->sze, lck, unlock_size);
+ pkt_left--;
+ }
+
+ sze_q->tx_pkts += num_tx;
+ sze_q->err_pkts += nb_pkts - num_tx;
+ sze_q->tx_bytes += num_bytes;
+ return num_tx;
+}
+
+static int
+eth_rx_queue_start(struct rte_eth_dev *dev, uint16_t rxq_id)
+{
+ struct szedata2_rx_queue *rxq = dev->data->rx_queues[rxq_id];
+ int ret;
+ struct pmd_internals *internals = (struct pmd_internals *)
+ dev->data->dev_private;
+
+ if (rxq->sze == NULL) {
+ uint32_t rx = 1 << rxq->rx_channel;
+ uint32_t tx = 0;
+ rxq->sze = szedata_open(internals->sze_dev);
+ if (rxq->sze == NULL)
+ return -EINVAL;
+ ret = szedata_subscribe3(rxq->sze, &rx, &tx);
+ if (ret != 0 || rx == 0)
+ goto err;
+ }
+
+ ret = szedata_start(rxq->sze);
+ if (ret != 0)
+ goto err;
+ dev->data->rx_queue_state[rxq_id] = RTE_ETH_QUEUE_STATE_STARTED;
+ return 0;
+
+err:
+ szedata_close(rxq->sze);
+ rxq->sze = NULL;
+ return -EINVAL;
+}
+
+static int
+eth_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rxq_id)
+{
+ struct szedata2_rx_queue *rxq = dev->data->rx_queues[rxq_id];
+
+ if (rxq->sze != NULL) {
+ szedata_close(rxq->sze);
+ rxq->sze = NULL;
+ }
+
+ dev->data->rx_queue_state[rxq_id] = RTE_ETH_QUEUE_STATE_STOPPED;
+ return 0;
+}
+
+static int
+eth_tx_queue_start(struct rte_eth_dev *dev, uint16_t txq_id)
+{
+ struct szedata2_tx_queue *txq = dev->data->tx_queues[txq_id];
+ int ret;
+ struct pmd_internals *internals = (struct pmd_internals *)
+ dev->data->dev_private;
+
+ if (txq->sze == NULL) {
+ uint32_t rx = 0;
+ uint32_t tx = 1 << txq->tx_channel;
+ txq->sze = szedata_open(internals->sze_dev);
+ if (txq->sze == NULL)
+ return -EINVAL;
+ ret = szedata_subscribe3(txq->sze, &rx, &tx);
+ if (ret != 0 || tx == 0)
+ goto err;
+ }
+
+ ret = szedata_start(txq->sze);
+ if (ret != 0)
+ goto err;
+ dev->data->tx_queue_state[txq_id] = RTE_ETH_QUEUE_STATE_STARTED;
+ return 0;
+
+err:
+ szedata_close(txq->sze);
+ txq->sze = NULL;
+ return -EINVAL;
+}
+
+static int
+eth_tx_queue_stop(struct rte_eth_dev *dev, uint16_t txq_id)
+{
+ struct szedata2_tx_queue *txq = dev->data->tx_queues[txq_id];
+
+ if (txq->sze != NULL) {
+ szedata_close(txq->sze);
+ txq->sze = NULL;
+ }
+
+ dev->data->tx_queue_state[txq_id] = RTE_ETH_QUEUE_STATE_STOPPED;
+ return 0;
+}
+
+static int
+eth_dev_start(struct rte_eth_dev *dev)
+{
+ int ret;
+ uint16_t i;
+ uint16_t nb_rx = dev->data->nb_rx_queues;
+ uint16_t nb_tx = dev->data->nb_tx_queues;
+
+ for (i = 0; i < nb_rx; i++) {
+ ret = eth_rx_queue_start(dev, i);
+ if (ret != 0)
+ goto err_rx;
+ }
+
+ for (i = 0; i < nb_tx; i++) {
+ ret = eth_tx_queue_start(dev, i);
+ if (ret != 0)
+ goto err_tx;
+ }
+
+ return 0;
+
+err_tx:
+ for (i = 0; i < nb_tx; i++)
+ eth_tx_queue_stop(dev, i);
+err_rx:
+ for (i = 0; i < nb_rx; i++)
+ eth_rx_queue_stop(dev, i);
+ return ret;
+}
+
+static void
+eth_dev_stop(struct rte_eth_dev *dev)
+{
+ uint16_t i;
+ uint16_t nb_rx = dev->data->nb_rx_queues;
+ uint16_t nb_tx = dev->data->nb_tx_queues;
+
+ for (i = 0; i < nb_tx; i++)
+ eth_tx_queue_stop(dev, i);
+
+ for (i = 0; i < nb_rx; i++)
+ eth_rx_queue_stop(dev, i);
+}
+
+static int
+eth_dev_configure(struct rte_eth_dev *dev)
+{
+ struct rte_eth_dev_data *data = dev->data;
+ if (data->dev_conf.rxmode.enable_scatter == 1) {
+ dev->rx_pkt_burst = eth_szedata2_rx_scattered;
+ data->scattered_rx = 1;
+ } else {
+ dev->rx_pkt_burst = eth_szedata2_rx;
+ data->scattered_rx = 0;
+ }
+ return 0;
+}
+
+static void
+eth_dev_info(struct rte_eth_dev *dev,
+ struct rte_eth_dev_info *dev_info)
+{
+ struct pmd_internals *internals = dev->data->dev_private;
+ dev_info->if_index = 0;
+ dev_info->max_mac_addrs = 1;
+ dev_info->max_rx_pktlen = (uint32_t)-1;
+ dev_info->max_rx_queues = internals->max_rx_queues;
+ dev_info->max_tx_queues = internals->max_tx_queues;
+ dev_info->min_rx_bufsize = 0;
+ dev_info->speed_capa = ETH_LINK_SPEED_100G;
+}
+
+static void
+eth_stats_get(struct rte_eth_dev *dev,
+ struct rte_eth_stats *stats)
+{
+ uint16_t i;
+ uint16_t nb_rx = dev->data->nb_rx_queues;
+ uint16_t nb_tx = dev->data->nb_tx_queues;
+ uint64_t rx_total = 0;
+ uint64_t tx_total = 0;
+ uint64_t tx_err_total = 0;
+ uint64_t rx_total_bytes = 0;
+ uint64_t tx_total_bytes = 0;
+ const struct pmd_internals *internals = dev->data->dev_private;
+
+ for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS && i < nb_rx; i++) {
+ stats->q_ipackets[i] = internals->rx_queue[i].rx_pkts;
+ stats->q_ibytes[i] = internals->rx_queue[i].rx_bytes;
+ rx_total += stats->q_ipackets[i];
+ rx_total_bytes += stats->q_ibytes[i];
+ }
+
+ for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS && i < nb_tx; i++) {
+ stats->q_opackets[i] = internals->tx_queue[i].tx_pkts;
+ stats->q_obytes[i] = internals->tx_queue[i].tx_bytes;
+ stats->q_errors[i] = internals->tx_queue[i].err_pkts;
+ tx_total += stats->q_opackets[i];
+ tx_total_bytes += stats->q_obytes[i];
+ tx_err_total += stats->q_errors[i];
+ }
+
+ stats->ipackets = rx_total;
+ stats->opackets = tx_total;
+ stats->ibytes = rx_total_bytes;
+ stats->obytes = tx_total_bytes;
+ stats->oerrors = tx_err_total;
+}
+
+static void
+eth_stats_reset(struct rte_eth_dev *dev)
+{
+ uint16_t i;
+ uint16_t nb_rx = dev->data->nb_rx_queues;
+ uint16_t nb_tx = dev->data->nb_tx_queues;
+ struct pmd_internals *internals = dev->data->dev_private;
+
+ for (i = 0; i < nb_rx; i++) {
+ internals->rx_queue[i].rx_pkts = 0;
+ internals->rx_queue[i].rx_bytes = 0;
+ internals->rx_queue[i].err_pkts = 0;
+ }
+ for (i = 0; i < nb_tx; i++) {
+ internals->tx_queue[i].tx_pkts = 0;
+ internals->tx_queue[i].tx_bytes = 0;
+ internals->tx_queue[i].err_pkts = 0;
+ }
+}
+
+static void
+eth_rx_queue_release(void *q)
+{
+ struct szedata2_rx_queue *rxq = (struct szedata2_rx_queue *)q;
+ if (rxq->sze != NULL) {
+ szedata_close(rxq->sze);
+ rxq->sze = NULL;
+ }
+}
+
+static void
+eth_tx_queue_release(void *q)
+{
+ struct szedata2_tx_queue *txq = (struct szedata2_tx_queue *)q;
+ if (txq->sze != NULL) {
+ szedata_close(txq->sze);
+ txq->sze = NULL;
+ }
+}
+
+static void
+eth_dev_close(struct rte_eth_dev *dev)
+{
+ uint16_t i;
+ uint16_t nb_rx = dev->data->nb_rx_queues;
+ uint16_t nb_tx = dev->data->nb_tx_queues;
+
+ eth_dev_stop(dev);
+
+ for (i = 0; i < nb_rx; i++) {
+ eth_rx_queue_release(dev->data->rx_queues[i]);
+ dev->data->rx_queues[i] = NULL;
+ }
+ dev->data->nb_rx_queues = 0;
+ for (i = 0; i < nb_tx; i++) {
+ eth_tx_queue_release(dev->data->tx_queues[i]);
+ dev->data->tx_queues[i] = NULL;
+ }
+ dev->data->nb_tx_queues = 0;
+}
+
+static int
+eth_link_update(struct rte_eth_dev *dev,
+ int wait_to_complete __rte_unused)
+{
+ struct rte_eth_link link;
+ struct rte_eth_link *link_ptr = &link;
+ struct rte_eth_link *dev_link = &dev->data->dev_link;
+ volatile struct szedata2_cgmii_ibuf *ibuf = SZEDATA2_PCI_RESOURCE_PTR(
+ dev, SZEDATA2_CGMII_IBUF_BASE_OFF,
+ volatile struct szedata2_cgmii_ibuf *);
+
+ switch (cgmii_link_speed(ibuf)) {
+ case SZEDATA2_LINK_SPEED_10G:
+ link.link_speed = ETH_SPEED_NUM_10G;
+ break;
+ case SZEDATA2_LINK_SPEED_40G:
+ link.link_speed = ETH_SPEED_NUM_40G;
+ break;
+ case SZEDATA2_LINK_SPEED_100G:
+ link.link_speed = ETH_SPEED_NUM_100G;
+ break;
+ default:
+ link.link_speed = ETH_SPEED_NUM_10G;
+ break;
+ }
+
+ /* szedata2 uses only full duplex */
+ link.link_duplex = ETH_LINK_FULL_DUPLEX;
+
+ link.link_status = (cgmii_ibuf_is_enabled(ibuf) &&
+ cgmii_ibuf_is_link_up(ibuf)) ? ETH_LINK_UP : ETH_LINK_DOWN;
+
+ link.link_autoneg = ETH_LINK_SPEED_FIXED;
+
+ rte_atomic64_cmpset((uint64_t *)dev_link, *(uint64_t *)dev_link,
+ *(uint64_t *)link_ptr);
+
+ return 0;
+}
+
+static int
+eth_dev_set_link_up(struct rte_eth_dev *dev)
+{
+ volatile struct szedata2_cgmii_ibuf *ibuf = SZEDATA2_PCI_RESOURCE_PTR(
+ dev, SZEDATA2_CGMII_IBUF_BASE_OFF,
+ volatile struct szedata2_cgmii_ibuf *);
+ volatile struct szedata2_cgmii_obuf *obuf = SZEDATA2_PCI_RESOURCE_PTR(
+ dev, SZEDATA2_CGMII_OBUF_BASE_OFF,
+ volatile struct szedata2_cgmii_obuf *);
+
+ cgmii_ibuf_enable(ibuf);
+ cgmii_obuf_enable(obuf);
+ return 0;
+}
+
+static int
+eth_dev_set_link_down(struct rte_eth_dev *dev)
+{
+ volatile struct szedata2_cgmii_ibuf *ibuf = SZEDATA2_PCI_RESOURCE_PTR(
+ dev, SZEDATA2_CGMII_IBUF_BASE_OFF,
+ volatile struct szedata2_cgmii_ibuf *);
+ volatile struct szedata2_cgmii_obuf *obuf = SZEDATA2_PCI_RESOURCE_PTR(
+ dev, SZEDATA2_CGMII_OBUF_BASE_OFF,
+ volatile struct szedata2_cgmii_obuf *);
+
+ cgmii_ibuf_disable(ibuf);
+ cgmii_obuf_disable(obuf);
+ return 0;
+}
+
+static int
+eth_rx_queue_setup(struct rte_eth_dev *dev,
+ uint16_t rx_queue_id,
+ uint16_t nb_rx_desc __rte_unused,
+ unsigned int socket_id __rte_unused,
+ const struct rte_eth_rxconf *rx_conf __rte_unused,
+ struct rte_mempool *mb_pool)
+{
+ struct pmd_internals *internals = dev->data->dev_private;
+ struct szedata2_rx_queue *rxq = &internals->rx_queue[rx_queue_id];
+ int ret;
+ uint32_t rx = 1 << rx_queue_id;
+ uint32_t tx = 0;
+
+ rxq->sze = szedata_open(internals->sze_dev);
+ if (rxq->sze == NULL)
+ return -EINVAL;
+ ret = szedata_subscribe3(rxq->sze, &rx, &tx);
+ if (ret != 0 || rx == 0) {
+ szedata_close(rxq->sze);
+ rxq->sze = NULL;
+ return -EINVAL;
+ }
+ rxq->rx_channel = rx_queue_id;
+ rxq->in_port = dev->data->port_id;
+ rxq->mb_pool = mb_pool;
+ rxq->rx_pkts = 0;
+ rxq->rx_bytes = 0;
+ rxq->err_pkts = 0;
+
+ dev->data->rx_queues[rx_queue_id] = rxq;
+ return 0;
+}
+
+static int
+eth_tx_queue_setup(struct rte_eth_dev *dev,
+ uint16_t tx_queue_id,
+ uint16_t nb_tx_desc __rte_unused,
+ unsigned int socket_id __rte_unused,
+ const struct rte_eth_txconf *tx_conf __rte_unused)
+{
+ struct pmd_internals *internals = dev->data->dev_private;
+ struct szedata2_tx_queue *txq = &internals->tx_queue[tx_queue_id];
+ int ret;
+ uint32_t rx = 0;
+ uint32_t tx = 1 << tx_queue_id;
+
+ txq->sze = szedata_open(internals->sze_dev);
+ if (txq->sze == NULL)
+ return -EINVAL;
+ ret = szedata_subscribe3(txq->sze, &rx, &tx);
+ if (ret != 0 || tx == 0) {
+ szedata_close(txq->sze);
+ txq->sze = NULL;
+ return -EINVAL;
+ }
+ txq->tx_channel = tx_queue_id;
+ txq->tx_pkts = 0;
+ txq->tx_bytes = 0;
+ txq->err_pkts = 0;
+
+ dev->data->tx_queues[tx_queue_id] = txq;
+ return 0;
+}
+
+static void
+eth_mac_addr_set(struct rte_eth_dev *dev __rte_unused,
+ struct ether_addr *mac_addr __rte_unused)
+{
+}
+
+static void
+eth_promiscuous_enable(struct rte_eth_dev *dev)
+{
+ volatile struct szedata2_cgmii_ibuf *ibuf = SZEDATA2_PCI_RESOURCE_PTR(
+ dev, SZEDATA2_CGMII_IBUF_BASE_OFF,
+ volatile struct szedata2_cgmii_ibuf *);
+ cgmii_ibuf_mac_mode_write(ibuf, SZEDATA2_MAC_CHMODE_PROMISC);
+}
+
+static void
+eth_promiscuous_disable(struct rte_eth_dev *dev)
+{
+ volatile struct szedata2_cgmii_ibuf *ibuf = SZEDATA2_PCI_RESOURCE_PTR(
+ dev, SZEDATA2_CGMII_IBUF_BASE_OFF,
+ volatile struct szedata2_cgmii_ibuf *);
+ cgmii_ibuf_mac_mode_write(ibuf, SZEDATA2_MAC_CHMODE_ONLY_VALID);
+}
+
+static void
+eth_allmulticast_enable(struct rte_eth_dev *dev)
+{
+ volatile struct szedata2_cgmii_ibuf *ibuf = SZEDATA2_PCI_RESOURCE_PTR(
+ dev, SZEDATA2_CGMII_IBUF_BASE_OFF,
+ volatile struct szedata2_cgmii_ibuf *);
+ cgmii_ibuf_mac_mode_write(ibuf, SZEDATA2_MAC_CHMODE_ALL_MULTICAST);
+}
+
+static void
+eth_allmulticast_disable(struct rte_eth_dev *dev)
+{
+ volatile struct szedata2_cgmii_ibuf *ibuf = SZEDATA2_PCI_RESOURCE_PTR(
+ dev, SZEDATA2_CGMII_IBUF_BASE_OFF,
+ volatile struct szedata2_cgmii_ibuf *);
+ cgmii_ibuf_mac_mode_write(ibuf, SZEDATA2_MAC_CHMODE_ONLY_VALID);
+}
+
+static const struct eth_dev_ops ops = {
+ .dev_start = eth_dev_start,
+ .dev_stop = eth_dev_stop,
+ .dev_set_link_up = eth_dev_set_link_up,
+ .dev_set_link_down = eth_dev_set_link_down,
+ .dev_close = eth_dev_close,
+ .dev_configure = eth_dev_configure,
+ .dev_infos_get = eth_dev_info,
+ .promiscuous_enable = eth_promiscuous_enable,
+ .promiscuous_disable = eth_promiscuous_disable,
+ .allmulticast_enable = eth_allmulticast_enable,
+ .allmulticast_disable = eth_allmulticast_disable,
+ .rx_queue_start = eth_rx_queue_start,
+ .rx_queue_stop = eth_rx_queue_stop,
+ .tx_queue_start = eth_tx_queue_start,
+ .tx_queue_stop = eth_tx_queue_stop,
+ .rx_queue_setup = eth_rx_queue_setup,
+ .tx_queue_setup = eth_tx_queue_setup,
+ .rx_queue_release = eth_rx_queue_release,
+ .tx_queue_release = eth_tx_queue_release,
+ .link_update = eth_link_update,
+ .stats_get = eth_stats_get,
+ .stats_reset = eth_stats_reset,
+ .mac_addr_set = eth_mac_addr_set,
+};
+
+/*
+ * This function goes through sysfs and looks for an index of szedata2
+ * device file (/dev/szedataIIX, where X is the index).
+ *
+ * @return
+ * 0 on success
+ * -1 on error
+ */
+static int
+get_szedata2_index(struct rte_eth_dev *dev, uint32_t *index)
+{
+ DIR *dir;
+ struct dirent *entry;
+ int ret;
+ uint32_t tmp_index;
+ FILE *fd;
+ char pcislot_path[PATH_MAX];
+ struct rte_pci_addr pcislot_addr = dev->pci_dev->addr;
+ uint32_t domain;
+ uint32_t bus;
+ uint32_t devid;
+ uint32_t function;
+
+ dir = opendir("/sys/class/combo");
+ if (dir == NULL)
+ return -1;
+
+ /*
+ * Iterate through all combosixX directories.
+ * When the value in /sys/class/combo/combosixX/device/pcislot
+ * file is the location of the ethernet device dev, "X" is the
+ * index of the device.
+ */
+ while ((entry = readdir(dir)) != NULL) {
+ ret = sscanf(entry->d_name, "combosix%u", &tmp_index);
+ if (ret != 1)
+ continue;
+
+ snprintf(pcislot_path, PATH_MAX,
+ "/sys/class/combo/combosix%u/device/pcislot",
+ tmp_index);
+
+ fd = fopen(pcislot_path, "r");
+ if (fd == NULL)
+ continue;
+
+ ret = fscanf(fd, "%4" PRIx16 ":%2" PRIx8 ":%2" PRIx8 ".%" PRIx8,
+ &domain, &bus, &devid, &function);
+ fclose(fd);
+ if (ret != 4)
+ continue;
+
+ if (pcislot_addr.domain == domain &&
+ pcislot_addr.bus == bus &&
+ pcislot_addr.devid == devid &&
+ pcislot_addr.function == function) {
+ *index = tmp_index;
+ closedir(dir);
+ return 0;
+ }
+ }
+
+ closedir(dir);
+ return -1;
+}
+
+static int
+rte_szedata2_eth_dev_init(struct rte_eth_dev *dev)
+{
+ struct rte_eth_dev_data *data = dev->data;
+ struct pmd_internals *internals = (struct pmd_internals *)
+ data->dev_private;
+ struct szedata *szedata_temp;
+ int ret;
+ uint32_t szedata2_index;
+ struct rte_pci_addr *pci_addr = &dev->pci_dev->addr;
+ struct rte_pci_resource *pci_rsc =
+ &dev->pci_dev->mem_resource[PCI_RESOURCE_NUMBER];
+ char rsc_filename[PATH_MAX];
+ void *pci_resource_ptr = NULL;
+ int fd;
+
+ RTE_LOG(INFO, PMD, "Initializing szedata2 device (" PCI_PRI_FMT ")\n",
+ pci_addr->domain, pci_addr->bus, pci_addr->devid,
+ pci_addr->function);
+
+ /* Get index of szedata2 device file and create path to device file */
+ ret = get_szedata2_index(dev, &szedata2_index);
+ if (ret != 0) {
+ RTE_LOG(ERR, PMD, "Failed to get szedata2 device index!\n");
+ return -ENODEV;
+ }
+ snprintf(internals->sze_dev, PATH_MAX, SZEDATA2_DEV_PATH_FMT,
+ szedata2_index);
+
+ RTE_LOG(INFO, PMD, "SZEDATA2 path: %s\n", internals->sze_dev);
+
+ /*
+ * Get number of available DMA RX and TX channels, which is maximum
+ * number of queues that can be created and store it in private device
+ * data structure.
+ */
+ szedata_temp = szedata_open(internals->sze_dev);
+ if (szedata_temp == NULL) {
+ RTE_LOG(ERR, PMD, "szedata_open(): failed to open %s",
+ internals->sze_dev);
+ return -EINVAL;
+ }
+ internals->max_rx_queues = szedata_ifaces_available(szedata_temp,
+ SZE2_DIR_RX);
+ internals->max_tx_queues = szedata_ifaces_available(szedata_temp,
+ SZE2_DIR_TX);
+ szedata_close(szedata_temp);
+
+ RTE_LOG(INFO, PMD, "Available DMA channels RX: %u TX: %u\n",
+ internals->max_rx_queues, internals->max_tx_queues);
+
+ /* Set rx, tx burst functions */
+ if (data->dev_conf.rxmode.enable_scatter == 1 ||
+ data->scattered_rx == 1) {
+ dev->rx_pkt_burst = eth_szedata2_rx_scattered;
+ data->scattered_rx = 1;
+ } else {
+ dev->rx_pkt_burst = eth_szedata2_rx;
+ data->scattered_rx = 0;
+ }
+ dev->tx_pkt_burst = eth_szedata2_tx;
+
+ /* Set function callbacks for Ethernet API */
+ dev->dev_ops = &ops;
+
+ rte_eth_copy_pci_info(dev, dev->pci_dev);
+
+ /* mmap pci resource0 file to rte_pci_resource structure */
+ if (dev->pci_dev->mem_resource[PCI_RESOURCE_NUMBER].phys_addr ==
+ 0) {
+ RTE_LOG(ERR, PMD, "Missing resource%u file\n",
+ PCI_RESOURCE_NUMBER);
+ return -EINVAL;
+ }
+ snprintf(rsc_filename, PATH_MAX,
+ SYSFS_PCI_DEVICES "/" PCI_PRI_FMT "/resource%u",
+ pci_addr->domain, pci_addr->bus,
+ pci_addr->devid, pci_addr->function, PCI_RESOURCE_NUMBER);
+ fd = open(rsc_filename, O_RDWR);
+ if (fd < 0) {
+ RTE_LOG(ERR, PMD, "Could not open file %s\n", rsc_filename);
+ return -EINVAL;
+ }
+
+ pci_resource_ptr = mmap(0,
+ dev->pci_dev->mem_resource[PCI_RESOURCE_NUMBER].len,
+ PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+ close(fd);
+ if (pci_resource_ptr == NULL) {
+ RTE_LOG(ERR, PMD, "Could not mmap file %s (fd = %d)\n",
+ rsc_filename, fd);
+ return -EINVAL;
+ }
+ dev->pci_dev->mem_resource[PCI_RESOURCE_NUMBER].addr =
+ pci_resource_ptr;
+
+ RTE_LOG(DEBUG, PMD, "resource%u phys_addr = 0x%llx len = %llu "
+ "virt addr = %llx\n", PCI_RESOURCE_NUMBER,
+ (unsigned long long)pci_rsc->phys_addr,
+ (unsigned long long)pci_rsc->len,
+ (unsigned long long)pci_rsc->addr);
+
+ /* Get link state */
+ eth_link_update(dev, 0);
+
+ /* Allocate space for one mac address */
+ data->mac_addrs = rte_zmalloc(data->name, sizeof(struct ether_addr),
+ RTE_CACHE_LINE_SIZE);
+ if (data->mac_addrs == NULL) {
+ RTE_LOG(ERR, PMD, "Could not alloc space for MAC address!\n");
+ munmap(dev->pci_dev->mem_resource[PCI_RESOURCE_NUMBER].addr,
+ dev->pci_dev->mem_resource[PCI_RESOURCE_NUMBER].len);
+ return -EINVAL;
+ }
+
+ ether_addr_copy(ð_addr, data->mac_addrs);
+
+ /* At initial state COMBO card is in promiscuous mode so disable it */
+ eth_promiscuous_disable(dev);
+
+ RTE_LOG(INFO, PMD, "szedata2 device ("
+ PCI_PRI_FMT ") successfully initialized\n",
+ pci_addr->domain, pci_addr->bus, pci_addr->devid,
+ pci_addr->function);
+
+ return 0;
+}
+
+static int
+rte_szedata2_eth_dev_uninit(struct rte_eth_dev *dev)
+{
+ struct rte_pci_addr *pci_addr = &dev->pci_dev->addr;
+
+ rte_free(dev->data->mac_addrs);
+ dev->data->mac_addrs = NULL;
+ munmap(dev->pci_dev->mem_resource[PCI_RESOURCE_NUMBER].addr,
+ dev->pci_dev->mem_resource[PCI_RESOURCE_NUMBER].len);
+
+ RTE_LOG(INFO, PMD, "szedata2 device ("
+ PCI_PRI_FMT ") successfully uninitialized\n",
+ pci_addr->domain, pci_addr->bus, pci_addr->devid,
+ pci_addr->function);
+
+ return 0;
+}
+
+static const struct rte_pci_id rte_szedata2_pci_id_table[] = {
+ {
+ RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE,
+ PCI_DEVICE_ID_NETCOPE_COMBO80G)
+ },
+ {
+ RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE,
+ PCI_DEVICE_ID_NETCOPE_COMBO100G)
+ },
+ {
+ RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE,
+ PCI_DEVICE_ID_NETCOPE_COMBO100G2)
+ },
+ {
+ .vendor_id = 0,
+ }
+};
+
+static struct eth_driver szedata2_eth_driver = {
+ .pci_drv = {
+ .name = RTE_SZEDATA2_PCI_DRIVER_NAME,
+ .id_table = rte_szedata2_pci_id_table,
+ },
+ .eth_dev_init = rte_szedata2_eth_dev_init,
+ .eth_dev_uninit = rte_szedata2_eth_dev_uninit,
+ .dev_private_size = sizeof(struct pmd_internals),
+};
+
+static int
+rte_szedata2_init(const char *name __rte_unused,
+ const char *args __rte_unused)
+{
+ rte_eth_driver_register(&szedata2_eth_driver);
+ return 0;
+}
+
+static int
+rte_szedata2_uninit(const char *name __rte_unused)
+{
+ return 0;
+}
+
+static struct rte_driver rte_szedata2_driver = {
+ .type = PMD_PDEV,
+ .name = RTE_SZEDATA2_DRIVER_NAME,
+ .init = rte_szedata2_init,
+ .uninit = rte_szedata2_uninit,
+};
+
+PMD_REGISTER_DRIVER(rte_szedata2_driver);
Code Review / deb_dpdk.git / blobdiff