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GET /api/patches/3126/?format=api
{ "id": 3126, "url": "https://patches.dpdk.org/api/patches/3126/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/1423618298-2933-11-git-send-email-jing.d.chen@intel.com/", "project": { "id": 1, "url": "https://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<1423618298-2933-11-git-send-email-jing.d.chen@intel.com>", "list_archive_url": "https://inbox.dpdk.org/dev/1423618298-2933-11-git-send-email-jing.d.chen@intel.com", "date": "2015-02-11T01:31:33", "name": "[dpdk-dev,v4,10/15] fm10k: add receive and tranmit function", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "2c1efee34cb4c25cb48f4a45c76278c6fbc8c124", "submitter": { "id": 40, "url": "https://patches.dpdk.org/api/people/40/?format=api", "name": "Chen, Jing D", "email": "jing.d.chen@intel.com" }, "delegate": null, "mbox": "https://patches.dpdk.org/project/dpdk/patch/1423618298-2933-11-git-send-email-jing.d.chen@intel.com/mbox/", "series": [], "comments": "https://patches.dpdk.org/api/patches/3126/comments/", "check": "pending", "checks": "https://patches.dpdk.org/api/patches/3126/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [IPv6:::1])\n\tby dpdk.org (Postfix) with ESMTP id B9E099A8F;\n\tWed, 11 Feb 2015 02:32:17 +0100 (CET)", "from mga03.intel.com (mga03.intel.com [134.134.136.65])\n\tby dpdk.org (Postfix) with ESMTP id B40905A99\n\tfor <dev@dpdk.org>; Wed, 11 Feb 2015 02:32:13 +0100 (CET)", "from orsmga001.jf.intel.com ([10.7.209.18])\n\tby orsmga103.jf.intel.com with ESMTP; 10 Feb 2015 17:27:12 -0800", "from shvmail01.sh.intel.com ([10.239.29.42])\n\tby orsmga001.jf.intel.com with ESMTP; 10 Feb 2015 17:32:11 -0800", "from shecgisg003.sh.intel.com (shecgisg003.sh.intel.com\n\t[10.239.29.90])\n\tby shvmail01.sh.intel.com with ESMTP id t1B1W84h026889;\n\tWed, 11 Feb 2015 09:32:08 +0800", "from shecgisg003.sh.intel.com (localhost [127.0.0.1])\n\tby shecgisg003.sh.intel.com (8.13.6/8.13.6/SuSE Linux 0.8) with ESMTP\n\tid t1B1W6w9003037; Wed, 11 Feb 2015 09:32:08 +0800", "(from jingche2@localhost)\n\tby shecgisg003.sh.intel.com (8.13.6/8.13.6/Submit) id t1B1W658003033; \n\tWed, 11 Feb 2015 09:32:06 +0800" ], "X-ExtLoop1": "1", "X-IronPort-AV": "E=Sophos;i=\"5.09,554,1418112000\"; d=\"scan'208\";a=\"650374320\"", "From": "\"Chen Jing D(Mark)\" <jing.d.chen@intel.com>", "To": "dev@dpdk.org", "Date": "Wed, 11 Feb 2015 09:31:33 +0800", "Message-Id": "<1423618298-2933-11-git-send-email-jing.d.chen@intel.com>", "X-Mailer": "git-send-email 1.7.12.2", "In-Reply-To": "<1423618298-2933-1-git-send-email-jing.d.chen@intel.com>", "References": "<1423551775-3604-2-git-send-email-jing.d.chen@intel.com>\n\t<1423618298-2933-1-git-send-email-jing.d.chen@intel.com>", "Subject": "[dpdk-dev] [PATCH v4 10/15] fm10k: add receive and tranmit function", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "patches and discussions about DPDK <dev.dpdk.org>", "List-Unsubscribe": "<http://dpdk.org/ml/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://dpdk.org/ml/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<http://dpdk.org/ml/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "From: Jeff Shaw <jeffrey.b.shaw@intel.com>\n\n1. Add fm10k_recv_pkts and fm10k_xmit_pkts functions.\n2. Link app function pointer to actual fm10k recv/xmit\n functions.\n3. Change Makefile to compile new file fm10k_rxtx.c\n\nSigned-off-by: Jeff Shaw <jeffrey.b.shaw@intel.com>\nSigned-off-by: Chen Jing D(Mark) <jing.d.chen@intel.com>\n---\n lib/librte_pmd_fm10k/Makefile | 1 +\n lib/librte_pmd_fm10k/fm10k.h | 7 +\n lib/librte_pmd_fm10k/fm10k_ethdev.c | 2 +\n lib/librte_pmd_fm10k/fm10k_rxtx.c | 299 +++++++++++++++++++++++++++++++++++\n 4 files changed, 309 insertions(+), 0 deletions(-)\n create mode 100644 lib/librte_pmd_fm10k/fm10k_rxtx.c", "diff": "diff --git a/lib/librte_pmd_fm10k/Makefile b/lib/librte_pmd_fm10k/Makefile\nindex 1da84e9..8ab788c 100644\n--- a/lib/librte_pmd_fm10k/Makefile\n+++ b/lib/librte_pmd_fm10k/Makefile\n@@ -79,6 +79,7 @@ VPATH += $(RTE_SDK)/lib/librte_pmd_fm10k/base\n # all source are stored in SRCS-y\n #\n SRCS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += fm10k_ethdev.c\n+SRCS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += fm10k_rxtx.c\n \n SRCS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += fm10k_pf.c\n SRCS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += fm10k_tlv.c\ndiff --git a/lib/librte_pmd_fm10k/fm10k.h b/lib/librte_pmd_fm10k/fm10k.h\nindex be990e5..a9b19cd 100644\n--- a/lib/librte_pmd_fm10k/fm10k.h\n+++ b/lib/librte_pmd_fm10k/fm10k.h\n@@ -280,4 +280,11 @@ fm10k_addr_alignment_valid(struct rte_mbuf *mb)\n \n \treturn 0;\n }\n+\n+/* Rx and Tx prototypes */\n+uint16_t fm10k_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,\n+\tuint16_t nb_pkts);\n+\n+uint16_t fm10k_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,\n+\tuint16_t nb_pkts);\n #endif\ndiff --git a/lib/librte_pmd_fm10k/fm10k_ethdev.c b/lib/librte_pmd_fm10k/fm10k_ethdev.c\nindex 011b0bc..af68ad7 100644\n--- a/lib/librte_pmd_fm10k/fm10k_ethdev.c\n+++ b/lib/librte_pmd_fm10k/fm10k_ethdev.c\n@@ -1245,6 +1245,8 @@ eth_fm10k_dev_init(__rte_unused struct eth_driver *eth_drv,\n \tPMD_INIT_FUNC_TRACE();\n \n \tdev->dev_ops = &fm10k_eth_dev_ops;\n+\tdev->rx_pkt_burst = &fm10k_recv_pkts;\n+\tdev->tx_pkt_burst = &fm10k_xmit_pkts;\n \n \t/* only initialize in the primary process */\n \tif (rte_eal_process_type() != RTE_PROC_PRIMARY)\ndiff --git a/lib/librte_pmd_fm10k/fm10k_rxtx.c b/lib/librte_pmd_fm10k/fm10k_rxtx.c\nnew file mode 100644\nindex 0000000..1d95bff\n--- /dev/null\n+++ b/lib/librte_pmd_fm10k/fm10k_rxtx.c\n@@ -0,0 +1,299 @@\n+/*-\n+ * BSD LICENSE\n+ *\n+ * Copyright(c) 2013-2015 Intel Corporation. All rights reserved.\n+ * All rights reserved.\n+ *\n+ * Redistribution and use in source and binary forms, with or without\n+ * modification, are permitted provided that the following conditions\n+ * are met:\n+ *\n+ * * Redistributions of source code must retain the above copyright\n+ * notice, this list of conditions and the following disclaimer.\n+ * * Redistributions in binary form must reproduce the above copyright\n+ * notice, this list of conditions and the following disclaimer in\n+ * the documentation and/or other materials provided with the\n+ * distribution.\n+ * * Neither the name of Intel Corporation nor the names of its\n+ * contributors may be used to endorse or promote products derived\n+ * from this software without specific prior written permission.\n+ *\n+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n+ * \"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n+ */\n+#include <rte_ethdev.h>\n+#include <rte_common.h>\n+#include \"fm10k.h\"\n+#include \"base/fm10k_type.h\"\n+\n+#ifdef RTE_PMD_PACKET_PREFETCH\n+#define rte_packet_prefetch(p) rte_prefetch1(p)\n+#else\n+#define rte_packet_prefetch(p) do {} while (0)\n+#endif\n+\n+static inline void dump_rxd(union fm10k_rx_desc *rxd)\n+{\n+#ifndef RTE_LIBRTE_FM10K_DEBUG_RX\n+\tRTE_SET_USED(rxd);\n+#endif\n+\tPMD_RX_LOG(DEBUG, \"+----------------|----------------+\");\n+\tPMD_RX_LOG(DEBUG, \"| GLORT | PKT HDR & TYPE |\");\n+\tPMD_RX_LOG(DEBUG, \"| 0x%08x | 0x%08x |\", rxd->d.glort,\n+\t\t\trxd->d.data);\n+\tPMD_RX_LOG(DEBUG, \"+----------------|----------------+\");\n+\tPMD_RX_LOG(DEBUG, \"| VLAN & LEN | STATUS |\");\n+\tPMD_RX_LOG(DEBUG, \"| 0x%08x | 0x%08x |\", rxd->d.vlan_len,\n+\t\t\trxd->d.staterr);\n+\tPMD_RX_LOG(DEBUG, \"+----------------|----------------+\");\n+\tPMD_RX_LOG(DEBUG, \"| RESERVED | RSS_HASH |\");\n+\tPMD_RX_LOG(DEBUG, \"| 0x%08x | 0x%08x |\", 0, rxd->d.rss);\n+\tPMD_RX_LOG(DEBUG, \"+----------------|----------------+\");\n+\tPMD_RX_LOG(DEBUG, \"| TIME TAG |\");\n+\tPMD_RX_LOG(DEBUG, \"| 0x%016lx |\", rxd->q.timestamp);\n+\tPMD_RX_LOG(DEBUG, \"+----------------|----------------+\");\n+}\n+\n+static inline void\n+rx_desc_to_ol_flags(struct rte_mbuf *m, const union fm10k_rx_desc *d)\n+{\n+\tuint16_t ptype;\n+\tstatic const uint16_t pt_lut[] = { 0,\n+\t\tPKT_RX_IPV4_HDR, PKT_RX_IPV4_HDR_EXT,\n+\t\tPKT_RX_IPV6_HDR, PKT_RX_IPV6_HDR_EXT,\n+\t\t0, 0, 0\n+\t};\n+\n+\tif (d->w.pkt_info & FM10K_RXD_RSSTYPE_MASK)\n+\t\tm->ol_flags |= PKT_RX_RSS_HASH;\n+\n+\tif ((d->d.staterr & (FM10K_RXD_STATUS_IPCS | FM10K_RXD_STATUS_IPE)) ==\n+\t (FM10K_RXD_STATUS_IPCS | FM10K_RXD_STATUS_IPE))\n+\t\tm->ol_flags |= PKT_RX_IP_CKSUM_BAD;\n+\n+\tif ((d->d.staterr & (FM10K_RXD_STATUS_L4CS | FM10K_RXD_STATUS_L4E)) ==\n+\t (FM10K_RXD_STATUS_L4CS | FM10K_RXD_STATUS_L4E))\n+\t\tm->ol_flags |= PKT_RX_L4_CKSUM_BAD;\n+\n+\tif (d->d.staterr & FM10K_RXD_STATUS_VEXT)\n+\t\tm->ol_flags |= PKT_RX_VLAN_PKT;\n+\n+\tif (d->d.staterr & FM10K_RXD_STATUS_HBO)\n+\t\tm->ol_flags |= PKT_RX_HBUF_OVERFLOW;\n+\n+\tif (d->d.staterr & FM10K_RXD_STATUS_RXE)\n+\t\tm->ol_flags |= PKT_RX_RECIP_ERR;\n+\n+\tptype = (d->d.data & FM10K_RXD_PKTTYPE_MASK_L3) >>\n+\t\t\t\t\t\tFM10K_RXD_PKTTYPE_SHIFT;\n+\tm->ol_flags |= pt_lut[(uint8_t)ptype];\n+}\n+\n+uint16_t\n+fm10k_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,\n+\tuint16_t nb_pkts)\n+{\n+\tstruct rte_mbuf *mbuf;\n+\tunion fm10k_rx_desc desc;\n+\tstruct fm10k_rx_queue *q = rx_queue;\n+\tuint16_t count = 0;\n+\tint alloc = 0;\n+\tuint16_t next_dd;\n+\n+\tnext_dd = q->next_dd;\n+\n+\tnb_pkts = RTE_MIN(nb_pkts, q->alloc_thresh);\n+\tfor (count = 0; count < nb_pkts; ++count) {\n+\t\tmbuf = q->sw_ring[next_dd];\n+\t\tdesc = q->hw_ring[next_dd];\n+\t\tif (!(desc.d.staterr & FM10K_RXD_STATUS_DD))\n+\t\t\tbreak;\n+#ifdef RTE_LIBRTE_FM10K_DEBUG_RX\n+\t\tdump_rxd(&desc);\n+#endif\n+\t\trte_pktmbuf_pkt_len(mbuf) = desc.w.length;\n+\t\trte_pktmbuf_data_len(mbuf) = desc.w.length;\n+\n+\t\tmbuf->ol_flags = 0;\n+#ifdef RTE_LIBRTE_FM10K_RX_OLFLAGS_ENABLE\n+\t\trx_desc_to_ol_flags(mbuf, &desc);\n+#endif\n+\n+\t\tmbuf->hash.rss = desc.d.rss;\n+\n+\t\trx_pkts[count] = mbuf;\n+\t\tif (++next_dd == q->nb_desc) {\n+\t\t\tnext_dd = 0;\n+\t\t\talloc = 1;\n+\t\t}\n+\n+\t\t/* Prefetch next mbuf while processing current one. */\n+\t\trte_prefetch0(q->sw_ring[next_dd]);\n+\n+\t\t/*\n+\t\t * When next RX descriptor is on a cache-line boundary,\n+\t\t * prefetch the next 4 RX descriptors and the next 8 pointers\n+\t\t * to mbufs.\n+\t\t */\n+\t\tif ((next_dd & 0x3) == 0) {\n+\t\t\trte_prefetch0(&q->hw_ring[next_dd]);\n+\t\t\trte_prefetch0(&q->sw_ring[next_dd]);\n+\t\t}\n+\t}\n+\n+\tq->next_dd = next_dd;\n+\n+\tif ((q->next_dd > q->next_trigger) || (alloc == 1)) {\n+\t\trte_mempool_get_bulk(q->mp, (void **)&q->sw_ring[q->next_alloc],\n+\t\t\t\t\tq->alloc_thresh);\n+\t\tfor (; q->next_alloc <= q->next_trigger; ++q->next_alloc) {\n+\t\t\tmbuf = q->sw_ring[q->next_alloc];\n+\n+\t\t\t/* setup static mbuf fields */\n+\t\t\tfm10k_pktmbuf_reset(mbuf, q->port_id);\n+\n+\t\t\t/* write descriptor */\n+\t\t\tdesc.q.pkt_addr = MBUF_DMA_ADDR_DEFAULT(mbuf);\n+\t\t\tdesc.q.hdr_addr = MBUF_DMA_ADDR_DEFAULT(mbuf);\n+\t\t\tq->hw_ring[q->next_alloc] = desc;\n+\t\t}\n+\t\tFM10K_PCI_REG_WRITE(q->tail_ptr, q->next_trigger);\n+\t\tq->next_trigger += q->alloc_thresh;\n+\t\tif (q->next_trigger >= q->nb_desc) {\n+\t\t\tq->next_trigger = q->alloc_thresh - 1;\n+\t\t\tq->next_alloc = 0;\n+\t\t}\n+\t}\n+\n+\treturn count;\n+}\n+\n+static inline void tx_free_descriptors(struct fm10k_tx_queue *q)\n+{\n+\tuint16_t next_rs, count = 0;\n+\n+\tnext_rs = fifo_peek(&q->rs_tracker);\n+\tif (!(q->hw_ring[next_rs].flags & FM10K_TXD_FLAG_DONE))\n+\t\treturn;\n+\n+\t/* the DONE flag is set on this descriptor so remove the ID\n+\t * from the RS bit tracker and free the buffers */\n+\tfifo_remove(&q->rs_tracker);\n+\n+\t/* wrap around? if so, free buffers from last_free up to but NOT\n+\t * including nb_desc */\n+\tif (q->last_free > next_rs) {\n+\t\tcount = q->nb_desc - q->last_free;\n+\t\twhile (q->last_free < q->nb_desc) {\n+\t\t\trte_pktmbuf_free_seg(q->sw_ring[q->last_free]);\n+\t\t\tq->sw_ring[q->last_free] = NULL;\n+\t\t\t++q->last_free;\n+\t\t}\n+\t\tq->last_free = 0;\n+\t}\n+\n+\t/* adjust free descriptor count before the next loop */\n+\tq->nb_free += count + (next_rs + 1 - q->last_free);\n+\n+\t/* free buffers from last_free, up to and including next_rs */\n+\twhile (q->last_free <= next_rs) {\n+\t\trte_pktmbuf_free_seg(q->sw_ring[q->last_free]);\n+\t\tq->sw_ring[q->last_free] = NULL;\n+\t\t++q->last_free;\n+\t}\n+\n+\tif (q->last_free == q->nb_desc)\n+\t\tq->last_free = 0;\n+}\n+\n+static inline void tx_xmit_pkt(struct fm10k_tx_queue *q, struct rte_mbuf *mb)\n+{\n+\tuint16_t last_id;\n+\tuint8_t flags;\n+\n+\t/* always set the LAST flag on the last descriptor used to\n+\t * transmit the packet */\n+\tflags = FM10K_TXD_FLAG_LAST;\n+\tlast_id = q->next_free + mb->nb_segs - 1;\n+\tif (last_id >= q->nb_desc)\n+\t\tlast_id = last_id - q->nb_desc;\n+\n+\t/* but only set the RS flag on the last descriptor if rs_thresh\n+\t * descriptors will be used since the RS flag was last set */\n+\tif ((q->nb_used + mb->nb_segs) >= q->rs_thresh) {\n+\t\tflags |= FM10K_TXD_FLAG_RS;\n+\t\tfifo_insert(&q->rs_tracker, last_id);\n+\t\tq->nb_used = 0;\n+\t} else {\n+\t\tq->nb_used = q->nb_used + mb->nb_segs;\n+\t}\n+\n+\tq->hw_ring[last_id].flags = flags;\n+\tq->nb_free -= mb->nb_segs;\n+\n+\t/* set checksum flags on first descriptor of packet. SCTP checksum\n+\t * offload is not supported, but we do not explicitely check for this\n+\t * case in favor of greatly simplified processing. */\n+\tif (mb->ol_flags & (PKT_TX_IPV4_CSUM | PKT_TX_L4_MASK))\n+\t\tq->hw_ring[q->next_free].flags |= FM10K_TXD_FLAG_CSUM;\n+\n+\t/* set vlan if requested */\n+\tif (mb->ol_flags & PKT_TX_VLAN_PKT)\n+\t\tq->hw_ring[q->next_free].vlan = mb->vlan_tci;\n+\n+\t/* fill up the rings */\n+\tfor (; mb != NULL; mb = mb->next) {\n+\t\tq->sw_ring[q->next_free] = mb;\n+\t\tq->hw_ring[q->next_free].buffer_addr =\n+\t\t\t\trte_cpu_to_le_64(MBUF_DMA_ADDR(mb));\n+\t\tq->hw_ring[q->next_free].buflen =\n+\t\t\t\trte_cpu_to_le_16(rte_pktmbuf_data_len(mb));\n+\t\tif (++q->next_free == q->nb_desc)\n+\t\t\tq->next_free = 0;\n+\t}\n+}\n+\n+uint16_t\n+fm10k_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,\n+\tuint16_t nb_pkts)\n+{\n+\tstruct fm10k_tx_queue *q = tx_queue;\n+\tstruct rte_mbuf *mb;\n+\tuint16_t count;\n+\n+\tfor (count = 0; count < nb_pkts; ++count) {\n+\t\tmb = tx_pkts[count];\n+\n+\t\t/* running low on descriptors? try to free some... */\n+\t\tif (q->nb_free < q->free_trigger)\n+\t\t\ttx_free_descriptors(q);\n+\n+\t\t/* make sure there are enough free descriptors to transmit the\n+\t\t * entire packet before doing anything */\n+\t\tif (q->nb_free < mb->nb_segs)\n+\t\t\tbreak;\n+\n+\t\t/* sanity check to make sure the mbuf is valid */\n+\t\tif ((mb->nb_segs == 0) ||\n+\t\t ((mb->nb_segs > 1) && (mb->next == NULL)))\n+\t\t\tbreak;\n+\n+\t\t/* process the packet */\n+\t\ttx_xmit_pkt(q, mb);\n+\t}\n+\n+\t/* update the tail pointer if any packets were processed */\n+\tif (count > 0)\n+\t\tFM10K_PCI_REG_WRITE(q->tail_ptr, q->next_free);\n+\n+\treturn count;\n+}\n", "prefixes": [ "dpdk-dev", "v4", "10/15" ] }