-/******************************************************************************\r
-*\r
-* Copyright (c) 2019 Intel.\r
-*\r
-* Licensed under the Apache License, Version 2.0 (the "License");\r
-* you may not use this file except in compliance with the License.\r
-* You may obtain a copy of the License at\r
-*\r
-* http://www.apache.org/licenses/LICENSE-2.0\r
-*\r
-* Unless required by applicable law or agreed to in writing, software\r
-* distributed under the License is distributed on an "AS IS" BASIS,\r
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
-* See the License for the specific language governing permissions and\r
-* limitations under the License.\r
-*\r
-*******************************************************************************/\r
-\r
-/**\r
- * @brief This file has all definitions for the Ethernet Data Interface Layer\r
- * @file ethernet.c\r
- * @ingroup group_lte_source_auxlib\r
- * @author Intel Corporation\r
- **/\r
-\r
-\r
-#include <stdio.h>\r
-#include <string.h>\r
-#include <stdint.h>\r
-#include <unistd.h>\r
-#include <errno.h>\r
-#include <sys/queue.h>\r
-#include <err.h>\r
-#include <assert.h>\r
-\r
-#include <linux/limits.h>\r
-#include <sys/types.h>\r
-#include <stdlib.h>\r
-#include <math.h>\r
-\r
-#include <rte_config.h>\r
-#include <rte_common.h>\r
-#include <rte_log.h>\r
-#include <rte_memory.h>\r
-#include <rte_memcpy.h>\r
-#include <rte_memzone.h>\r
-#include <rte_eal.h>\r
-#include <rte_per_lcore.h>\r
-#include <rte_launch.h>\r
-#include <rte_atomic.h>\r
-#include <rte_cycles.h>\r
-#include <rte_prefetch.h>\r
-#include <rte_lcore.h>\r
-#include <rte_per_lcore.h>\r
-#include <rte_branch_prediction.h>\r
-#include <rte_interrupts.h>\r
-#include <rte_pci.h>\r
-#include <rte_debug.h>\r
-#include <rte_ether.h>\r
-#include <rte_ethdev.h>\r
-#include <rte_ring.h>\r
-#include <rte_mempool.h>\r
-#include <rte_mbuf.h>\r
-#include <rte_errno.h>\r
-\r
-#include "ethernet.h"\r
-#include "ethdi.h"\r
-\r
-/* Our mbuf pools. */\r
-struct rte_mempool *_eth_mbuf_pool = NULL;\r
-struct rte_mempool *_eth_mbuf_pool_inderect = NULL;\r
-struct rte_mempool *_eth_mbuf_pool_rx = NULL;\r
-struct rte_mempool *_eth_mbuf_pool_small = NULL;\r
-struct rte_mempool *_eth_mbuf_pool_big = NULL;\r
-\r
-struct rte_mempool *socket_direct_pool = NULL;\r
-struct rte_mempool *socket_indirect_pool = NULL;\r
-\r
-\r
-/*\r
- * Make sure the ring indexes are big enough to cover buf space x2\r
- * This ring-buffer maintains the property head - tail <= RINGSIZE.\r
- * head == tail: ring buffer empty\r
- * head - tail == RINGSIZE: ring buffer full\r
- */\r
-typedef uint16_t ring_idx;\r
-static struct {\r
- ring_idx head;\r
- ring_idx read_head;\r
- ring_idx tail;\r
- char buf[1024]; /* needs power of 2! */\r
-} io_ring = { {0}, 0, 0};\r
-\r
-#define RINGSIZE sizeof(io_ring.buf)\r
-#define RINGMASK (RINGSIZE - 1)\r
-\r
-int __xran_delayed_msg(const char *fmt, ...)\r
-{\r
-#if 0\r
- va_list ap;\r
- int msg_len;\r
- char localbuf[RINGSIZE];\r
- ring_idx old_head, new_head;\r
- ring_idx copy_len;\r
-\r
- /* first prep a copy of the message on the local stack */\r
- va_start(ap, fmt);\r
- msg_len = vsnprintf(localbuf, RINGSIZE, fmt, ap);\r
- va_end(ap);\r
-\r
- /* atomically reserve space in the ring */\r
- for (;;) {\r
- old_head = io_ring.head; /* snapshot head */\r
- /* free always within range of [0, RINGSIZE] - proof by induction */\r
- const ring_idx free = RINGSIZE - (old_head - io_ring.tail);\r
-\r
- copy_len = RTE_MIN(msg_len, free);\r
- if (copy_len <= 0)\r
- return 0; /* vsnprintf error or ringbuff full. Drop log. */\r
-\r
- new_head = old_head + copy_len;\r
- RTE_ASSERT((ring_idx)(new_head - io_ring.tail) <= RINGSIZE);\r
-\r
- if (likely(__atomic_compare_exchange_n(&io_ring.head, &old_head,\r
- new_head, 0, __ATOMIC_ACQUIRE, __ATOMIC_RELAXED)))\r
- break;\r
- }\r
-\r
- /* Now copy data in at ease. */\r
- const int copy_start = (old_head & RINGMASK);\r
- if (copy_start < (new_head & RINGMASK)) /* no wrap */\r
- memcpy(io_ring.buf + copy_start, localbuf, copy_len);\r
- else { /* wrap-around */\r
- const int chunk_len = RINGSIZE - copy_start;\r
-\r
- memcpy(io_ring.buf + copy_start, localbuf, chunk_len);\r
- memcpy(io_ring.buf, localbuf + chunk_len, copy_len - chunk_len);\r
- }\r
-\r
- /* wait for previous writes to complete before updating read_head. */\r
- while (io_ring.read_head != old_head)\r
- rte_pause();\r
- io_ring.read_head = new_head;\r
-\r
-\r
- return copy_len;\r
- #endif\r
- return 0;\r
-}\r
-\r
-/*\r
- * Display part of the message stored in the ring buffer.\r
- * Might require multiple calls to print the full message.\r
- * Will return 0 when nothing left to print.\r
- */\r
-#if 0\r
-int xran_show_delayed_message(void)\r
-{\r
- ring_idx tail = io_ring.tail;\r
- ring_idx wlen = io_ring.read_head - tail; /* always within [0, RINGSIZE] */\r
-\r
- if (wlen <= 0)\r
- return 0;\r
-\r
- tail &= RINGMASK; /* modulo the range down now that we have wlen */\r
-\r
- /* Make sure we're not going over buffer end. Next call will wrap. */\r
- if (tail + wlen > RINGSIZE)\r
- wlen = RINGSIZE - tail;\r
-\r
- RTE_ASSERT(tail + wlen <= RINGSIZE);\r
-\r
- /* We use write() here to avoid recaculating string length in fwrite(). */\r
- const ssize_t written = write(STDOUT_FILENO, io_ring.buf + tail, wlen);\r
- if (written <= 0)\r
- return 0; /* To avoid moving tail the wrong way on error. */\r
-\r
- /* Move tail up. Only we touch it. And we only print from one core. */\r
- io_ring.tail += written;\r
-\r
- return written; /* next invocation will print the rest if any */\r
-}\r
-#endif\r
-\r
-void xran_init_mbuf_pool(void)\r
-{\r
- /* Init the buffer pool */\r
- if (rte_eal_process_type() == RTE_PROC_PRIMARY) {\r
- _eth_mbuf_pool = rte_pktmbuf_pool_create("mempool", NUM_MBUFS,\r
- MBUF_CACHE, 0, MBUF_POOL_ELEMENT, rte_socket_id());\r
-#ifdef XRAN_ATTACH_MBUF\r
- _eth_mbuf_pool_inderect = rte_pktmbuf_pool_create("mempool_indirect", NUM_MBUFS,\r
- MBUF_CACHE, 0, MBUF_POOL_ELEMENT, rte_socket_id());*/\r
-#endif\r
- _eth_mbuf_pool_rx = rte_pktmbuf_pool_create("mempool_rx", NUM_MBUFS,\r
- MBUF_CACHE, 0, MBUF_POOL_ELEMENT, rte_socket_id());\r
- _eth_mbuf_pool_small = rte_pktmbuf_pool_create("mempool_small",\r
- NUM_MBUFS, MBUF_CACHE, 0, MBUF_POOL_ELM_SMALL, rte_socket_id());\r
- _eth_mbuf_pool_big = rte_pktmbuf_pool_create("mempool_big",\r
- NUM_MBUFS_BIG, 0, 0, MBUF_POOL_ELM_BIG, rte_socket_id());\r
- } else {\r
- _eth_mbuf_pool = rte_mempool_lookup("mempool");\r
- _eth_mbuf_pool_inderect = rte_mempool_lookup("mempool_indirect");\r
- _eth_mbuf_pool_rx = rte_mempool_lookup("mempool_rx");\r
- _eth_mbuf_pool_small = rte_mempool_lookup("mempool_small");\r
- _eth_mbuf_pool_big = rte_mempool_lookup("mempool_big");\r
- }\r
- if (_eth_mbuf_pool == NULL)\r
- rte_panic("Cannot create mbuf pool: %s\n", rte_strerror(rte_errno));\r
-#ifdef XRAN_ATTACH_MBUF\r
- if (_eth_mbuf_pool_inderect == NULL)\r
- rte_panic("Cannot create mbuf pool: %s\n", rte_strerror(rte_errno));\r
-#endif\r
- if (_eth_mbuf_pool_rx == NULL)\r
- rte_panic("Cannot create mbuf pool: %s\n", rte_strerror(rte_errno));\r
- if (_eth_mbuf_pool_small == NULL)\r
- rte_panic("Cannot create small mbuf pool: %s\n", rte_strerror(rte_errno));\r
- if (_eth_mbuf_pool_big == NULL)\r
- rte_panic("Cannot create big mbuf pool: %s\n", rte_strerror(rte_errno));\r
-\r
- if (socket_direct_pool == NULL)\r
- socket_direct_pool = _eth_mbuf_pool;\r
-\r
- if (socket_indirect_pool == NULL)\r
- socket_indirect_pool = _eth_mbuf_pool_inderect;\r
-}\r
-\r
-/* Init NIC port, then start the port */\r
-void xran_init_port(int p_id, struct ether_addr *p_lls_cu_addr)\r
-{\r
- static uint16_t nb_rxd = BURST_SIZE;\r
- static uint16_t nb_txd = BURST_SIZE;\r
- struct ether_addr addr;\r
- struct rte_eth_rxmode rxmode =\r
- { .split_hdr_size = 0,\r
- .max_rx_pkt_len = MAX_RX_LEN,\r
- .offloads=(DEV_RX_OFFLOAD_JUMBO_FRAME|DEV_RX_OFFLOAD_CRC_STRIP)\r
- };\r
- struct rte_eth_txmode txmode = {\r
- .mq_mode = ETH_MQ_TX_NONE\r
- };\r
- struct rte_eth_conf port_conf = {\r
- .rxmode = rxmode,\r
- .txmode = txmode\r
- };\r
- struct rte_eth_rxconf rxq_conf;\r
- struct rte_eth_txconf txq_conf;\r
-\r
- int ret;\r
- struct rte_eth_dev_info dev_info;\r
- const char *drv_name = "";\r
- int sock_id = rte_eth_dev_socket_id(p_id);\r
-\r
- rte_eth_dev_info_get(p_id, &dev_info);\r
- if (dev_info.driver_name)\r
- drv_name = dev_info.driver_name;\r
- printf("initializing port %d for TX, drv=%s\n", p_id, drv_name);\r
-\r
- rte_eth_macaddr_get(p_id, &addr);\r
-\r
- printf("Port %u MAC: %02"PRIx8" %02"PRIx8" %02"PRIx8\r
- " %02"PRIx8" %02"PRIx8" %02"PRIx8"\n",\r
- (unsigned)p_id,\r
- addr.addr_bytes[0], addr.addr_bytes[1], addr.addr_bytes[2],\r
- addr.addr_bytes[3], addr.addr_bytes[4], addr.addr_bytes[5]);\r
-\r
- /* Init port */\r
- ret = rte_eth_dev_configure(p_id, 1, 1, &port_conf);\r
- if (ret < 0)\r
- rte_panic("Cannot configure port %u (%d)\n", p_id, ret);\r
-\r
- ret = rte_eth_dev_adjust_nb_rx_tx_desc(p_id, &nb_rxd,&nb_txd);\r
-\r
- if (ret < 0) {\r
- printf("\n");\r
- rte_exit(EXIT_FAILURE, "Cannot adjust number of "\r
- "descriptors: err=%d, port=%d\n", ret, p_id);\r
- }\r
- printf("Port %u: nb_rxd %d nb_txd %d\n", p_id, nb_rxd, nb_txd);\r
-\r
- /* Init RX queues */\r
- rxq_conf = dev_info.default_rxconf;\r
- ret = rte_eth_rx_queue_setup(p_id, 0, nb_rxd,\r
- sock_id, &rxq_conf, _eth_mbuf_pool_rx);\r
- if (ret < 0)\r
- rte_panic("Cannot init RX for port %u (%d)\n",\r
- p_id, ret);\r
-\r
- /* Init TX queues */\r
- txq_conf = dev_info.default_txconf;\r
- ret = rte_eth_tx_queue_setup(p_id, 0, nb_txd, sock_id, &txq_conf);\r
- if (ret < 0)\r
- rte_panic("Cannot init TX for port %u (%d)\n",\r
- p_id, ret);\r
-\r
- /* Start port */\r
- ret = rte_eth_dev_start(p_id);\r
- if (ret < 0)\r
- rte_panic("Cannot start port %u (%d)\n", p_id, ret);\r
-\r
-// rte_eth_promiscuous_enable(p_id);\r
-}\r
-\r
-#if 0\r
-void xran_memdump(void *addr, int len)\r
-{\r
- int i;\r
- char tmp_buf[len * 2 + len / 16 + 1];\r
- char *p = tmp_buf;\r
-\r
- return;\r
-#if 0\r
- for (i = 0; i < len; ++i) {\r
- sprintf(p, "%.2X ", ((uint8_t *)addr)[i]);\r
- if (i % 16 == 15)\r
- *p++ = '\n';\r
- }\r
- *p = 0;\r
- nlog("%s", tmp_buf);\r
-#endif\r
-}\r
-\r
-/* Prepend ethernet header, possibly vlan tag. */\r
-void xran_add_eth_hdr(struct ether_addr *dst, uint16_t ethertype, struct rte_mbuf *mb)\r
-{\r
- /* add in the ethernet header */\r
- struct ether_hdr *const h = (void *)rte_pktmbuf_prepend(mb, sizeof(*h));\r
-\r
- PANIC_ON(h == NULL, "mbuf prepend of ether_hdr failed");\r
-\r
- /* Fill in the ethernet header. */\r
- rte_eth_macaddr_get(mb->port, &h->s_addr); /* set source addr */\r
- h->d_addr = *dst; /* set dst addr */\r
- h->ether_type = rte_cpu_to_be_16(ethertype); /* ethertype too */\r
-\r
-#if defined(DPDKIO_DEBUG) && DPDKIO_DEBUG > 1\r
- {\r
- char dst[ETHER_ADDR_FMT_SIZE] = "(empty)";\r
- char src[ETHER_ADDR_FMT_SIZE] = "(empty)";\r
-\r
- nlog("*** packet for TX below (len %d) ***", rte_pktmbuf_pkt_len(mb));\r
- ether_format_addr(src, sizeof(src), &h->s_addr);\r
- ether_format_addr(dst, sizeof(dst), &h->d_addr);\r
- nlog("src: %s dst: %s ethertype: %.4X", src, dst, ethertype);\r
- }\r
-#endif\r
-#ifdef VLAN_SUPPORT\r
- mb->vlan_tci = FLEXRAN_UP_VLAN_TAG;\r
- dlog("Inserting vlan tag of %d", FLEXRAN_UP_VLAN_TAG);\r
- rte_vlan_insert(&mb);\r
-#endif\r
-}\r
-\r
-int xran_send_mbuf(struct ether_addr *dst, struct rte_mbuf *mb)\r
-{\r
- xran_add_eth_hdr(dst, ETHER_TYPE_ETHDI, mb);\r
-\r
- if (rte_eth_tx_burst(mb->port, 0, &mb, 1) == 1)\r
- return 1;\r
-\r
- elog("packet sending failed on port %d", mb->port);\r
- rte_pktmbuf_free(mb);\r
-\r
- return 0; /* fail */\r
-}\r
-\r
-int xran_send_message_burst(int dst_id, int pkt_type, void *body, int len)\r
-{\r
- struct rte_mbuf *mbufs[BURST_SIZE];\r
- int i;\r
- uint8_t *src = body;\r
- const struct xran_ethdi_ctx *const ctx = xran_ethdi_get_ctx();\r
-\r
- /* We're limited by maximum mbuf size on the receive size.\r
- * We can change this but this would be a bigger rework. */\r
- RTE_ASSERT(len < MBUF_POOL_ELM_BIG);\r
-\r
- /* Allocate the required number of mbufs. */\r
- const uint8_t count = ceilf((float)len / MAX_DATA_SIZE);\r
- if (rte_pktmbuf_alloc_bulk(_eth_mbuf_pool, mbufs, count) != 0)\r
- rte_panic("Failed to allocate %d mbufs\n", count);\r
-\r
- nlog("burst transfer with data size %lu", MAX_DATA_SIZE);\r
- for (i = 0; len > 0; ++i) {\r
- char *p;\r
- struct burst_hdr *bhdr;\r
- struct ethdi_hdr *edi_hdr;\r
-\r
- /* Setup the ethdi_hdr. */\r
- edi_hdr = (void *)rte_pktmbuf_append(mbufs[i], sizeof(*edi_hdr));\r
- if (edi_hdr == NULL)\r
- rte_panic("append of ethdi_hdr failed\n");\r
- edi_hdr->pkt_type = PKT_BURST;\r
- /* edi_hdr->source_id setup in tx_from_ring */\r
- edi_hdr->dest_id = dst_id;\r
-\r
- /* Setup the burst header */\r
- bhdr = (void *)rte_pktmbuf_append(mbufs[i], sizeof(*bhdr));\r
- if (bhdr == NULL) /* append failed. */\r
- rte_panic("mbuf prepend of burst_hdr failed\n");\r
- bhdr->original_type = pkt_type;\r
- bhdr->pkt_idx = i; /* save the index of the burst chunk. */\r
- bhdr->total_pkts = count;\r
-\r
- /* now copy in the actual data */\r
- const int curr_data_len = RTE_MIN(len, MAX_TX_LEN -\r
- rte_pktmbuf_pkt_len(mbufs[i]) - sizeof(struct ether_hdr));\r
- p = (void *)rte_pktmbuf_append(mbufs[i], curr_data_len);\r
- if (p == NULL)\r
- rte_panic("mbuf append of %d data bytes failed\n", curr_data_len);\r
- /* This copy is unavoidable, as we're splitting one big buffer\r
- * into multiple mbufs. */\r
- rte_memcpy(p, src, curr_data_len);\r
-\r
- dlog("curr_data_len[%d] = %d", i, curr_data_len);\r
- dlog("packet %d size %d", i, rte_pktmbuf_pkt_len(mbufs[i]));\r
-\r
- /* Update our source data pointer and remaining length. */\r
- len -= curr_data_len;\r
- src += curr_data_len;\r
- }\r
-\r
- /* Now enqueue the full prepared burst. */\r
- i = rte_ring_enqueue_bulk(ctx->tx_ring[0], (void **)mbufs, count, NULL);\r
- PANIC_ON(i != count, "failed to enqueue all mbufs: %d/%d", i, count);\r
- dlog("%d packets enqueued on port %d.", count, ctx->io_cfg.port);\r
-\r
- return 1;\r
-}\r
-\r
-#endif\r
-\r
-/* Prepend ethernet header, possibly vlan tag. */\r
-void xran_add_eth_hdr_vlan(struct ether_addr *dst, uint16_t ethertype, struct rte_mbuf *mb, uint16_t vlan_tci)\r
-{\r
- /* add in the ethernet header */\r
- struct ether_hdr *h = (struct ether_hdr *)rte_pktmbuf_mtod(mb, struct ether_hdr*);\r
-\r
- PANIC_ON(h == NULL, "mbuf prepend of ether_hdr failed");\r
-\r
- /* Fill in the ethernet header. */\r
- rte_eth_macaddr_get(mb->port, &h->s_addr); /* set source addr */\r
- h->d_addr = *dst; /* set dst addr */\r
- h->ether_type = rte_cpu_to_be_16(ethertype); /* ethertype too */\r
-\r
-#if defined(DPDKIO_DEBUG) && DPDKIO_DEBUG > 1\r
- {\r
- char dst[ETHER_ADDR_FMT_SIZE] = "(empty)";\r
- char src[ETHER_ADDR_FMT_SIZE] = "(empty)";\r
-\r
- nlog("*** packet for TX below (len %d) ***", rte_pktmbuf_pkt_len(mb));\r
- ether_format_addr(src, sizeof(src), &h->s_addr);\r
- ether_format_addr(dst, sizeof(dst), &h->d_addr);\r
- nlog("src: %s dst: %s ethertype: %.4X", src, dst, ethertype);\r
- }\r
-#endif\r
-#ifdef VLAN_SUPPORT\r
- mb->vlan_tci = vlan_tci;\r
- dlog("Inserting vlan tag of %d", vlan_tci);\r
- rte_vlan_insert(&mb);\r
-#endif\r
-}\r
-\r
-\r
+/******************************************************************************
+*
+* Copyright (c) 2019 Intel.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*
+*******************************************************************************/
+
+/**
+ * @brief This file has all definitions for the Ethernet Data Interface Layer
+ * @file ethernet.c
+ * @ingroup group_lte_source_auxlib
+ * @author Intel Corporation
+ **/
+
+
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/queue.h>
+#include <err.h>
+#include <assert.h>
+
+#include <linux/limits.h>
+#include <sys/types.h>
+#include <stdlib.h>
+#include <math.h>
+
+#include <rte_config.h>
+#include <rte_common.h>
+#include <rte_log.h>
+#include <rte_memory.h>
+#include <rte_memcpy.h>
+#include <rte_memzone.h>
+#include <rte_eal.h>
+#include <rte_per_lcore.h>
+#include <rte_launch.h>
+#include <rte_atomic.h>
+#include <rte_cycles.h>
+#include <rte_prefetch.h>
+#include <rte_lcore.h>
+#include <rte_per_lcore.h>
+#include <rte_branch_prediction.h>
+#include <rte_interrupts.h>
+#include <rte_pci.h>
+#include <rte_debug.h>
+#include <rte_ether.h>
+#include <rte_ethdev.h>
+#include <rte_ring.h>
+#include <rte_mempool.h>
+#include <rte_mbuf.h>
+#include <rte_errno.h>
+
+#include "ethernet.h"
+#include "ethdi.h"
+
+/* Our mbuf pools. */
+struct rte_mempool *_eth_mbuf_pool = NULL;
+struct rte_mempool *_eth_mbuf_pool_inderect = NULL;
+struct rte_mempool *_eth_mbuf_pool_rx = NULL;
+struct rte_mempool *_eth_mbuf_pool_small = NULL;
+struct rte_mempool *_eth_mbuf_pool_big = NULL;
+
+struct rte_mempool *socket_direct_pool = NULL;
+struct rte_mempool *socket_indirect_pool = NULL;
+
+
+/*
+ * Make sure the ring indexes are big enough to cover buf space x2
+ * This ring-buffer maintains the property head - tail <= RINGSIZE.
+ * head == tail: ring buffer empty
+ * head - tail == RINGSIZE: ring buffer full
+ */
+typedef uint16_t ring_idx;
+static struct {
+ ring_idx head;
+ ring_idx read_head;
+ ring_idx tail;
+ char buf[1024]; /* needs power of 2! */
+} io_ring = { {0}, 0, 0};
+
+#define RINGSIZE sizeof(io_ring.buf)
+#define RINGMASK (RINGSIZE - 1)
+
+int __xran_delayed_msg(const char *fmt, ...)
+{
+#if 0
+ va_list ap;
+ int msg_len;
+ char localbuf[RINGSIZE];
+ ring_idx old_head, new_head;
+ ring_idx copy_len;
+
+ /* first prep a copy of the message on the local stack */
+ va_start(ap, fmt);
+ msg_len = vsnprintf(localbuf, RINGSIZE, fmt, ap);
+ va_end(ap);
+
+ /* atomically reserve space in the ring */
+ for (;;) {
+ old_head = io_ring.head; /* snapshot head */
+ /* free always within range of [0, RINGSIZE] - proof by induction */
+ const ring_idx free = RINGSIZE - (old_head - io_ring.tail);
+
+ copy_len = RTE_MIN(msg_len, free);
+ if (copy_len <= 0)
+ return 0; /* vsnprintf error or ringbuff full. Drop log. */
+
+ new_head = old_head + copy_len;
+ RTE_ASSERT((ring_idx)(new_head - io_ring.tail) <= RINGSIZE);
+
+ if (likely(__atomic_compare_exchange_n(&io_ring.head, &old_head,
+ new_head, 0, __ATOMIC_ACQUIRE, __ATOMIC_RELAXED)))
+ break;
+ }
+
+ /* Now copy data in at ease. */
+ const int copy_start = (old_head & RINGMASK);
+ if (copy_start < (new_head & RINGMASK)) /* no wrap */
+ memcpy(io_ring.buf + copy_start, localbuf, copy_len);
+ else { /* wrap-around */
+ const int chunk_len = RINGSIZE - copy_start;
+
+ memcpy(io_ring.buf + copy_start, localbuf, chunk_len);
+ memcpy(io_ring.buf, localbuf + chunk_len, copy_len - chunk_len);
+ }
+
+ /* wait for previous writes to complete before updating read_head. */
+ while (io_ring.read_head != old_head)
+ rte_pause();
+ io_ring.read_head = new_head;
+
+
+ return copy_len;
+ #endif
+ return 0;
+}
+
+/*
+ * Display part of the message stored in the ring buffer.
+ * Might require multiple calls to print the full message.
+ * Will return 0 when nothing left to print.
+ */
+#if 0
+int xran_show_delayed_message(void)
+{
+ ring_idx tail = io_ring.tail;
+ ring_idx wlen = io_ring.read_head - tail; /* always within [0, RINGSIZE] */
+
+ if (wlen <= 0)
+ return 0;
+
+ tail &= RINGMASK; /* modulo the range down now that we have wlen */
+
+ /* Make sure we're not going over buffer end. Next call will wrap. */
+ if (tail + wlen > RINGSIZE)
+ wlen = RINGSIZE - tail;
+
+ RTE_ASSERT(tail + wlen <= RINGSIZE);
+
+ /* We use write() here to avoid recaculating string length in fwrite(). */
+ const ssize_t written = write(STDOUT_FILENO, io_ring.buf + tail, wlen);
+ if (written <= 0)
+ return 0; /* To avoid moving tail the wrong way on error. */
+
+ /* Move tail up. Only we touch it. And we only print from one core. */
+ io_ring.tail += written;
+
+ return written; /* next invocation will print the rest if any */
+}
+#endif
+
+void xran_init_mbuf_pool(void)
+{
+ /* Init the buffer pool */
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+ _eth_mbuf_pool = rte_pktmbuf_pool_create("mempool", NUM_MBUFS,
+ MBUF_CACHE, 0, MBUF_POOL_ELEMENT, rte_socket_id());
+#ifdef XRAN_ATTACH_MBUF
+ _eth_mbuf_pool_inderect = rte_pktmbuf_pool_create("mempool_indirect", NUM_MBUFS,
+ MBUF_CACHE, 0, MBUF_POOL_ELEMENT, rte_socket_id());*/
+#endif
+ _eth_mbuf_pool_rx = rte_pktmbuf_pool_create("mempool_rx", NUM_MBUFS,
+ MBUF_CACHE, 0, MBUF_POOL_ELEMENT, rte_socket_id());
+ _eth_mbuf_pool_small = rte_pktmbuf_pool_create("mempool_small",
+ NUM_MBUFS, MBUF_CACHE, 0, MBUF_POOL_ELM_SMALL, rte_socket_id());
+ _eth_mbuf_pool_big = rte_pktmbuf_pool_create("mempool_big",
+ NUM_MBUFS_BIG, 0, 0, MBUF_POOL_ELM_BIG, rte_socket_id());
+ } else {
+ _eth_mbuf_pool = rte_mempool_lookup("mempool");
+ _eth_mbuf_pool_inderect = rte_mempool_lookup("mempool_indirect");
+ _eth_mbuf_pool_rx = rte_mempool_lookup("mempool_rx");
+ _eth_mbuf_pool_small = rte_mempool_lookup("mempool_small");
+ _eth_mbuf_pool_big = rte_mempool_lookup("mempool_big");
+ }
+ if (_eth_mbuf_pool == NULL)
+ rte_panic("Cannot create mbuf pool: %s\n", rte_strerror(rte_errno));
+#ifdef XRAN_ATTACH_MBUF
+ if (_eth_mbuf_pool_inderect == NULL)
+ rte_panic("Cannot create mbuf pool: %s\n", rte_strerror(rte_errno));
+#endif
+ if (_eth_mbuf_pool_rx == NULL)
+ rte_panic("Cannot create mbuf pool: %s\n", rte_strerror(rte_errno));
+ if (_eth_mbuf_pool_small == NULL)
+ rte_panic("Cannot create small mbuf pool: %s\n", rte_strerror(rte_errno));
+ if (_eth_mbuf_pool_big == NULL)
+ rte_panic("Cannot create big mbuf pool: %s\n", rte_strerror(rte_errno));
+
+ if (socket_direct_pool == NULL)
+ socket_direct_pool = _eth_mbuf_pool;
+
+ if (socket_indirect_pool == NULL)
+ socket_indirect_pool = _eth_mbuf_pool_inderect;
+}
+
+/* Init NIC port, then start the port */
+void xran_init_port(int p_id, struct ether_addr *p_lls_cu_addr)
+{
+ static uint16_t nb_rxd = BURST_SIZE;
+ static uint16_t nb_txd = BURST_SIZE;
+ struct ether_addr addr;
+ struct rte_eth_rxmode rxmode =
+ { .split_hdr_size = 0,
+ .max_rx_pkt_len = MAX_RX_LEN,
+ .offloads=(DEV_RX_OFFLOAD_JUMBO_FRAME|DEV_RX_OFFLOAD_CRC_STRIP)
+ };
+ struct rte_eth_txmode txmode = {
+ .mq_mode = ETH_MQ_TX_NONE
+ };
+ struct rte_eth_conf port_conf = {
+ .rxmode = rxmode,
+ .txmode = txmode
+ };
+ struct rte_eth_rxconf rxq_conf;
+ struct rte_eth_txconf txq_conf;
+
+ int ret;
+ struct rte_eth_dev_info dev_info;
+ const char *drv_name = "";
+ int sock_id = rte_eth_dev_socket_id(p_id);
+
+ rte_eth_dev_info_get(p_id, &dev_info);
+ if (dev_info.driver_name)
+ drv_name = dev_info.driver_name;
+ printf("initializing port %d for TX, drv=%s\n", p_id, drv_name);
+
+ rte_eth_macaddr_get(p_id, &addr);
+
+ printf("Port %u MAC: %02"PRIx8" %02"PRIx8" %02"PRIx8
+ " %02"PRIx8" %02"PRIx8" %02"PRIx8"\n",
+ (unsigned)p_id,
+ addr.addr_bytes[0], addr.addr_bytes[1], addr.addr_bytes[2],
+ addr.addr_bytes[3], addr.addr_bytes[4], addr.addr_bytes[5]);
+
+ /* Init port */
+ ret = rte_eth_dev_configure(p_id, 1, 1, &port_conf);
+ if (ret < 0)
+ rte_panic("Cannot configure port %u (%d)\n", p_id, ret);
+
+ ret = rte_eth_dev_adjust_nb_rx_tx_desc(p_id, &nb_rxd,&nb_txd);
+
+ if (ret < 0) {
+ printf("\n");
+ rte_exit(EXIT_FAILURE, "Cannot adjust number of "
+ "descriptors: err=%d, port=%d\n", ret, p_id);
+ }
+ printf("Port %u: nb_rxd %d nb_txd %d\n", p_id, nb_rxd, nb_txd);
+
+ /* Init RX queues */
+ rxq_conf = dev_info.default_rxconf;
+ ret = rte_eth_rx_queue_setup(p_id, 0, nb_rxd,
+ sock_id, &rxq_conf, _eth_mbuf_pool_rx);
+ if (ret < 0)
+ rte_panic("Cannot init RX for port %u (%d)\n",
+ p_id, ret);
+
+ /* Init TX queues */
+ txq_conf = dev_info.default_txconf;
+ ret = rte_eth_tx_queue_setup(p_id, 0, nb_txd, sock_id, &txq_conf);
+ if (ret < 0)
+ rte_panic("Cannot init TX for port %u (%d)\n",
+ p_id, ret);
+
+ /* Start port */
+ ret = rte_eth_dev_start(p_id);
+ if (ret < 0)
+ rte_panic("Cannot start port %u (%d)\n", p_id, ret);
+
+// rte_eth_promiscuous_enable(p_id);
+}
+
+#if 0
+void xran_memdump(void *addr, int len)
+{
+ int i;
+ char tmp_buf[len * 2 + len / 16 + 1];
+ char *p = tmp_buf;
+
+ return;
+#if 0
+ for (i = 0; i < len; ++i) {
+ sprintf(p, "%.2X ", ((uint8_t *)addr)[i]);
+ if (i % 16 == 15)
+ *p++ = '\n';
+ }
+ *p = 0;
+ nlog("%s", tmp_buf);
+#endif
+}
+
+/* Prepend ethernet header, possibly vlan tag. */
+void xran_add_eth_hdr(struct ether_addr *dst, uint16_t ethertype, struct rte_mbuf *mb)
+{
+ /* add in the ethernet header */
+ struct ether_hdr *const h = (void *)rte_pktmbuf_prepend(mb, sizeof(*h));
+
+ PANIC_ON(h == NULL, "mbuf prepend of ether_hdr failed");
+
+ /* Fill in the ethernet header. */
+ rte_eth_macaddr_get(mb->port, &h->s_addr); /* set source addr */
+ h->d_addr = *dst; /* set dst addr */
+ h->ether_type = rte_cpu_to_be_16(ethertype); /* ethertype too */
+
+#if defined(DPDKIO_DEBUG) && DPDKIO_DEBUG > 1
+ {
+ char dst[ETHER_ADDR_FMT_SIZE] = "(empty)";
+ char src[ETHER_ADDR_FMT_SIZE] = "(empty)";
+
+ nlog("*** packet for TX below (len %d) ***", rte_pktmbuf_pkt_len(mb));
+ ether_format_addr(src, sizeof(src), &h->s_addr);
+ ether_format_addr(dst, sizeof(dst), &h->d_addr);
+ nlog("src: %s dst: %s ethertype: %.4X", src, dst, ethertype);
+ }
+#endif
+#ifdef VLAN_SUPPORT
+ mb->vlan_tci = FLEXRAN_UP_VLAN_TAG;
+ dlog("Inserting vlan tag of %d", FLEXRAN_UP_VLAN_TAG);
+ rte_vlan_insert(&mb);
+#endif
+}
+
+int xran_send_mbuf(struct ether_addr *dst, struct rte_mbuf *mb)
+{
+ xran_add_eth_hdr(dst, ETHER_TYPE_ETHDI, mb);
+
+ if (rte_eth_tx_burst(mb->port, 0, &mb, 1) == 1)
+ return 1;
+
+ elog("packet sending failed on port %d", mb->port);
+ rte_pktmbuf_free(mb);
+
+ return 0; /* fail */
+}
+
+int xran_send_message_burst(int dst_id, int pkt_type, void *body, int len)
+{
+ struct rte_mbuf *mbufs[BURST_SIZE];
+ int i;
+ uint8_t *src = body;
+ const struct xran_ethdi_ctx *const ctx = xran_ethdi_get_ctx();
+
+ /* We're limited by maximum mbuf size on the receive size.
+ * We can change this but this would be a bigger rework. */
+ RTE_ASSERT(len < MBUF_POOL_ELM_BIG);
+
+ /* Allocate the required number of mbufs. */
+ const uint8_t count = ceilf((float)len / MAX_DATA_SIZE);
+ if (rte_pktmbuf_alloc_bulk(_eth_mbuf_pool, mbufs, count) != 0)
+ rte_panic("Failed to allocate %d mbufs\n", count);
+
+ nlog("burst transfer with data size %lu", MAX_DATA_SIZE);
+ for (i = 0; len > 0; ++i) {
+ char *p;
+ struct burst_hdr *bhdr;
+ struct ethdi_hdr *edi_hdr;
+
+ /* Setup the ethdi_hdr. */
+ edi_hdr = (void *)rte_pktmbuf_append(mbufs[i], sizeof(*edi_hdr));
+ if (edi_hdr == NULL)
+ rte_panic("append of ethdi_hdr failed\n");
+ edi_hdr->pkt_type = PKT_BURST;
+ /* edi_hdr->source_id setup in tx_from_ring */
+ edi_hdr->dest_id = dst_id;
+
+ /* Setup the burst header */
+ bhdr = (void *)rte_pktmbuf_append(mbufs[i], sizeof(*bhdr));
+ if (bhdr == NULL) /* append failed. */
+ rte_panic("mbuf prepend of burst_hdr failed\n");
+ bhdr->original_type = pkt_type;
+ bhdr->pkt_idx = i; /* save the index of the burst chunk. */
+ bhdr->total_pkts = count;
+
+ /* now copy in the actual data */
+ const int curr_data_len = RTE_MIN(len, MAX_TX_LEN -
+ rte_pktmbuf_pkt_len(mbufs[i]) - sizeof(struct ether_hdr));
+ p = (void *)rte_pktmbuf_append(mbufs[i], curr_data_len);
+ if (p == NULL)
+ rte_panic("mbuf append of %d data bytes failed\n", curr_data_len);
+ /* This copy is unavoidable, as we're splitting one big buffer
+ * into multiple mbufs. */
+ rte_memcpy(p, src, curr_data_len);
+
+ dlog("curr_data_len[%d] = %d", i, curr_data_len);
+ dlog("packet %d size %d", i, rte_pktmbuf_pkt_len(mbufs[i]));
+
+ /* Update our source data pointer and remaining length. */
+ len -= curr_data_len;
+ src += curr_data_len;
+ }
+
+ /* Now enqueue the full prepared burst. */
+ i = rte_ring_enqueue_bulk(ctx->tx_ring[0], (void **)mbufs, count, NULL);
+ PANIC_ON(i != count, "failed to enqueue all mbufs: %d/%d", i, count);
+ dlog("%d packets enqueued on port %d.", count, ctx->io_cfg.port);
+
+ return 1;
+}
+
+#endif
+
+/* Prepend ethernet header, possibly vlan tag. */
+void xran_add_eth_hdr_vlan(struct ether_addr *dst, uint16_t ethertype, struct rte_mbuf *mb, uint16_t vlan_tci)
+{
+ /* add in the ethernet header */
+ struct ether_hdr *h = (struct ether_hdr *)rte_pktmbuf_mtod(mb, struct ether_hdr*);
+
+ PANIC_ON(h == NULL, "mbuf prepend of ether_hdr failed");
+
+ /* Fill in the ethernet header. */
+ rte_eth_macaddr_get(mb->port, &h->s_addr); /* set source addr */
+ h->d_addr = *dst; /* set dst addr */
+ h->ether_type = rte_cpu_to_be_16(ethertype); /* ethertype too */
+
+#if defined(DPDKIO_DEBUG) && DPDKIO_DEBUG > 1
+ {
+ char dst[ETHER_ADDR_FMT_SIZE] = "(empty)";
+ char src[ETHER_ADDR_FMT_SIZE] = "(empty)";
+
+ nlog("*** packet for TX below (len %d) ***", rte_pktmbuf_pkt_len(mb));
+ ether_format_addr(src, sizeof(src), &h->s_addr);
+ ether_format_addr(dst, sizeof(dst), &h->d_addr);
+ nlog("src: %s dst: %s ethertype: %.4X", src, dst, ethertype);
+ }
+#endif
+#ifdef VLAN_SUPPORT
+ mb->vlan_tci = vlan_tci;
+ dlog("Inserting vlan tag of %d", vlan_tci);
+ rte_vlan_insert(&mb);
+#endif
+}
+
+
Code Review / o-du / phy.git / blobdiff