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GET /api/patches/27810/?format=api
{ "id": 27810, "url": "https://patches.dpdk.org/api/patches/27810/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/20170823141213.25476-39-shreyansh.jain@nxp.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": "<20170823141213.25476-39-shreyansh.jain@nxp.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20170823141213.25476-39-shreyansh.jain@nxp.com", "date": "2017-08-23T14:12:11", "name": "[dpdk-dev,v3,38/40] net/dpaa: add support for Scattered Rx", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "8fbb01ad64d2e6f4c1210b8a33a562a373204d7b", "submitter": { "id": 497, "url": "https://patches.dpdk.org/api/people/497/?format=api", "name": "Shreyansh Jain", "email": "shreyansh.jain@nxp.com" }, "delegate": null, "mbox": "https://patches.dpdk.org/project/dpdk/patch/20170823141213.25476-39-shreyansh.jain@nxp.com/mbox/", "series": [], "comments": "https://patches.dpdk.org/api/patches/27810/comments/", "check": "warning", "checks": "https://patches.dpdk.org/api/patches/27810/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 4E7F69B39;\n\tWed, 23 Aug 2017 16:03:44 +0200 (CEST)", "from NAM03-BY2-obe.outbound.protection.outlook.com\n\t(mail-by2nam03on0066.outbound.protection.outlook.com [104.47.42.66])\n\tby dpdk.org (Postfix) with ESMTP id D37B89A11\n\tfor <dev@dpdk.org>; Wed, 23 Aug 2017 16:03:42 +0200 (CEST)", "from CY1PR03CA0029.namprd03.prod.outlook.com (10.174.128.39) by\n\tMWHPR03MB3327.namprd03.prod.outlook.com (10.174.249.145) with\n\tMicrosoft SMTP Server (version=TLS1_2,\n\tcipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id\n\t15.1.1362.18; Wed, 23 Aug 2017 14:03:41 +0000", "from BY2FFO11FD035.protection.gbl (2a01:111:f400:7c0c::132) by\n\tCY1PR03CA0029.outlook.office365.com (2603:10b6:600::39) with\n\tMicrosoft SMTP Server (version=TLS1_2,\n\tcipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id\n\t15.1.1362.18 via Frontend Transport; Wed, 23 Aug 2017 14:03:41 +0000", "from tx30smr01.am.freescale.net (192.88.168.50) by\n\tBY2FFO11FD035.mail.protection.outlook.com (10.1.14.220) with\n\tMicrosoft SMTP Server (version=TLS1_0,\n\tcipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1341.15\n\tvia Frontend Transport; Wed, 23 Aug 2017 14:03:40 +0000", "from Tophie.ap.freescale.net ([10.232.14.39])\n\tby tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id\n\tv7NE2Q3O004389; Wed, 23 Aug 2017 07:03:38 -0700" ], "Authentication-Results": "spf=fail (sender IP is 192.88.168.50)\n\tsmtp.mailfrom=nxp.com; nxp.com; dkim=none (message not signed)\n\theader.d=none;nxp.com; dmarc=fail action=none header.from=nxp.com;", "Received-SPF": "Fail (protection.outlook.com: domain of nxp.com does not\n\tdesignate 192.88.168.50 as permitted sender)\n\treceiver=protection.outlook.com; \n\tclient-ip=192.88.168.50; helo=tx30smr01.am.freescale.net;", "From": "Shreyansh Jain <shreyansh.jain@nxp.com>", "To": "<dev@dpdk.org>", "CC": "<ferruh.yigit@intel.com>, <hemant.agrawal@nxp.com>", "Date": "Wed, 23 Aug 2017 19:42:11 +0530", "Message-ID": "<20170823141213.25476-39-shreyansh.jain@nxp.com>", "X-Mailer": "git-send-email 2.9.3", "In-Reply-To": "<20170823141213.25476-1-shreyansh.jain@nxp.com>", "References": "<1499179471-19145-1-git-send-email-shreyansh.jain@nxp.com>\n\t<20170823141213.25476-1-shreyansh.jain@nxp.com>", "X-EOPAttributedMessage": "0", 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PCL:0;\n\tRULEID:(100000700101)(100105000095)(100000701101)(100105300095)(100000702101)(100105100095)(6095135)(601004)(2401047)(13018025)(8121501046)(5005006)(13016025)(10201501046)(100000703101)(100105400095)(93006095)(93001095)(3002001)(6055026)(6096035)(20161123561025)(20161123556025)(20161123563025)(20161123559100)(201703131430075)(201703131433075)(201703131441075)(201703131448075)(201703161259150)(20161123565025)(201708071742011)(100000704101)(100105200095)(100000705101)(100105500095);\n\tSRVR:MWHPR03MB3327; BCL:0; PCL:0;\n\tRULEID:(100000800101)(100110000095)(100000801101)(100110300095)(100000802101)(100110100095)(100000803101)(100110400095)(400006)(100000804101)(100110200095)(100000805101)(100110500095);\n\tSRVR:MWHPR03MB3327; ", "X-Forefront-PRVS": "040866B734", "SpamDiagnosticOutput": "1:99", "SpamDiagnosticMetadata": "NSPM", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "23 Aug 2017 14:03:40.3583\n\t(UTC)", "X-MS-Exchange-CrossTenant-Id": "5afe0b00-7697-4969-b663-5eab37d5f47e", "X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp": "TenantId=5afe0b00-7697-4969-b663-5eab37d5f47e;\n\tIp=[192.88.168.50]; \n\tHelo=[tx30smr01.am.freescale.net]", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "MWHPR03MB3327", "Subject": "[dpdk-dev] [PATCH v3 38/40] net/dpaa: add support for Scattered Rx", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "DPDK patches and discussions <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": "Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>\nSigned-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>\n---\n doc/guides/nics/features/dpaa.ini | 1 +\n drivers/net/dpaa/dpaa_rxtx.c | 158 ++++++++++++++++++++++++++++++++++++++\n drivers/net/dpaa/dpaa_rxtx.h | 9 +++\n 3 files changed, 168 insertions(+)", "diff": "diff --git a/doc/guides/nics/features/dpaa.ini b/doc/guides/nics/features/dpaa.ini\nindex 23626c0..0e7956c 100644\n--- a/doc/guides/nics/features/dpaa.ini\n+++ b/doc/guides/nics/features/dpaa.ini\n@@ -8,6 +8,7 @@ Speed capabilities = P\n Link status = Y\n Jumbo frame = Y\n MTU update = Y\n+Scattered Rx = Y\n Promiscuous mode = Y\n Allmulticast mode = Y\n Unicast MAC filter = Y\ndiff --git a/drivers/net/dpaa/dpaa_rxtx.c b/drivers/net/dpaa/dpaa_rxtx.c\nindex 0f43bb4..064f0da 100644\n--- a/drivers/net/dpaa/dpaa_rxtx.c\n+++ b/drivers/net/dpaa/dpaa_rxtx.c\n@@ -276,18 +276,82 @@ static inline void dpaa_checksum_offload(struct rte_mbuf *mbuf,\n \tfd->cmd = DPAA_FD_CMD_RPD | DPAA_FD_CMD_DTC;\n }\n \n+struct rte_mbuf *\n+dpaa_eth_sg_to_mbuf(struct qm_fd *fd, uint32_t ifid)\n+{\n+\tstruct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid);\n+\tstruct rte_mbuf *first_seg, *prev_seg, *cur_seg, *temp;\n+\tstruct qm_sg_entry *sgt, *sg_temp;\n+\tvoid *vaddr, *sg_vaddr;\n+\tint i = 0;\n+\tuint8_t fd_offset = fd->offset;\n+\n+\tDPAA_RX_LOG(DEBUG, \"Received an SG frame\");\n+\n+\tvaddr = rte_dpaa_mem_ptov(qm_fd_addr(fd));\n+\tif (!vaddr) {\n+\t\tDPAA_PMD_ERR(\"unable to convert physical address\");\n+\t\treturn NULL;\n+\t}\n+\tsgt = vaddr + fd_offset;\n+\tsg_temp = &sgt[i++];\n+\thw_sg_to_cpu(sg_temp);\n+\ttemp = (struct rte_mbuf *)((char *)vaddr - bp_info->meta_data_size);\n+\tsg_vaddr = rte_dpaa_mem_ptov(qm_sg_entry_get64(sg_temp));\n+\n+\tfirst_seg = (struct rte_mbuf *)((char *)sg_vaddr -\n+\t\t\t\t\t\tbp_info->meta_data_size);\n+\tfirst_seg->data_off = sg_temp->offset;\n+\tfirst_seg->data_len = sg_temp->length;\n+\tfirst_seg->pkt_len = sg_temp->length;\n+\trte_mbuf_refcnt_set(first_seg, 1);\n+\n+\tfirst_seg->port = ifid;\n+\tfirst_seg->nb_segs = 1;\n+\tfirst_seg->ol_flags = 0;\n+\tprev_seg = first_seg;\n+\twhile (i < DPAA_SGT_MAX_ENTRIES) {\n+\t\tsg_temp = &sgt[i++];\n+\t\thw_sg_to_cpu(sg_temp);\n+\t\tsg_vaddr = rte_dpaa_mem_ptov(qm_sg_entry_get64(sg_temp));\n+\t\tcur_seg = (struct rte_mbuf *)((char *)sg_vaddr -\n+\t\t\t\t\t\t bp_info->meta_data_size);\n+\t\tcur_seg->data_off = sg_temp->offset;\n+\t\tcur_seg->data_len = sg_temp->length;\n+\t\tfirst_seg->pkt_len += sg_temp->length;\n+\t\tfirst_seg->nb_segs += 1;\n+\t\trte_mbuf_refcnt_set(cur_seg, 1);\n+\t\tprev_seg->next = cur_seg;\n+\t\tif (sg_temp->final) {\n+\t\t\tcur_seg->next = NULL;\n+\t\t\tbreak;\n+\t\t}\n+\t\tprev_seg = cur_seg;\n+\t}\n+\n+\tdpaa_eth_packet_info(first_seg, (uint64_t)vaddr);\n+\trte_pktmbuf_free_seg(temp);\n+\n+\treturn first_seg;\n+}\n+\n static inline struct rte_mbuf *dpaa_eth_fd_to_mbuf(struct qm_fd *fd,\n \t\t\t\t\t\t\tuint32_t ifid)\n {\n \tstruct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid);\n \tstruct rte_mbuf *mbuf;\n \tvoid *ptr;\n+\tuint8_t format =\n+\t\t(fd->opaque & DPAA_FD_FORMAT_MASK) >> DPAA_FD_FORMAT_SHIFT;\n \tuint16_t offset =\n \t\t(fd->opaque & DPAA_FD_OFFSET_MASK) >> DPAA_FD_OFFSET_SHIFT;\n \tuint32_t length = fd->opaque & DPAA_FD_LENGTH_MASK;\n \n \tDPAA_RX_LOG(DEBUG, \" FD--->MBUF\");\n \n+\tif (unlikely(format == qm_fd_sg))\n+\t\treturn dpaa_eth_sg_to_mbuf(fd, ifid);\n+\n \t/* Ignoring case when format != qm_fd_contig */\n \tptr = rte_dpaa_mem_ptov(fd->addr);\n \t/* Ignoring case when ptr would be NULL. That is only possible incase\n@@ -390,6 +454,94 @@ static struct rte_mbuf *dpaa_get_dmable_mbuf(struct rte_mbuf *mbuf,\n \treturn dpaa_mbuf;\n }\n \n+int\n+dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,\n+\t\tstruct qm_fd *fd,\n+\t\tuint32_t bpid)\n+{\n+\tstruct rte_mbuf *cur_seg = mbuf, *prev_seg = NULL;\n+\tstruct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(bpid);\n+\tstruct rte_mbuf *temp, *mi;\n+\tstruct qm_sg_entry *sg_temp, *sgt;\n+\tint i = 0;\n+\n+\tDPAA_TX_LOG(DEBUG, \"Creating SG FD to transmit\");\n+\n+\ttemp = rte_pktmbuf_alloc(bp_info->mp);\n+\tif (!temp) {\n+\t\tDPAA_PMD_ERR(\"Failure in allocation of mbuf\");\n+\t\treturn -1;\n+\t}\n+\tif (temp->buf_len < ((mbuf->nb_segs * sizeof(struct qm_sg_entry))\n+\t\t\t\t+ temp->data_off)) {\n+\t\tDPAA_PMD_ERR(\"Insufficient space in mbuf for SG entries\");\n+\t\treturn -1;\n+\t}\n+\n+\tfd->cmd = 0;\n+\tfd->opaque_addr = 0;\n+\n+\tif (mbuf->ol_flags & DPAA_TX_CKSUM_OFFLOAD_MASK) {\n+\t\tif (temp->data_off < DEFAULT_TX_ICEOF\n+\t\t\t+ sizeof(struct dpaa_eth_parse_results_t))\n+\t\t\ttemp->data_off = DEFAULT_TX_ICEOF\n+\t\t\t\t+ sizeof(struct dpaa_eth_parse_results_t);\n+\t\tdcbz_64(temp->buf_addr);\n+\t\tdpaa_checksum_offload(mbuf, fd, temp->buf_addr);\n+\t}\n+\n+\tsgt = temp->buf_addr + temp->data_off;\n+\tfd->format = QM_FD_SG;\n+\tfd->addr = temp->buf_physaddr;\n+\tfd->offset = temp->data_off;\n+\tfd->bpid = bpid;\n+\tfd->length20 = mbuf->pkt_len;\n+\n+\twhile (i < DPAA_SGT_MAX_ENTRIES) {\n+\t\tsg_temp = &sgt[i++];\n+\t\tsg_temp->opaque = 0;\n+\t\tsg_temp->val = 0;\n+\t\tsg_temp->addr = cur_seg->buf_physaddr;\n+\t\tsg_temp->offset = cur_seg->data_off;\n+\t\tsg_temp->length = cur_seg->data_len;\n+\t\tif (RTE_MBUF_DIRECT(cur_seg)) {\n+\t\t\tif (rte_mbuf_refcnt_read(cur_seg) > 1) {\n+\t\t\t\t/*If refcnt > 1, invalid bpid is set to ensure\n+\t\t\t\t * buffer is not freed by HW.\n+\t\t\t\t */\n+\t\t\t\tsg_temp->bpid = 0xff;\n+\t\t\t\trte_mbuf_refcnt_update(cur_seg, -1);\n+\t\t\t} else\n+\t\t\t\tsg_temp->bpid =\n+\t\t\t\t\tDPAA_MEMPOOL_TO_BPID(cur_seg->pool);\n+\t\t\tcur_seg = cur_seg->next;\n+\t\t} else {\n+\t\t\t/* Get owner MBUF from indirect buffer */\n+\t\t\tmi = rte_mbuf_from_indirect(cur_seg);\n+\t\t\tif (rte_mbuf_refcnt_read(mi) > 1) {\n+\t\t\t\t/*If refcnt > 1, invalid bpid is set to ensure\n+\t\t\t\t * owner buffer is not freed by HW.\n+\t\t\t\t */\n+\t\t\t\tsg_temp->bpid = 0xff;\n+\t\t\t} else {\n+\t\t\t\tsg_temp->bpid = DPAA_MEMPOOL_TO_BPID(mi->pool);\n+\t\t\t\trte_mbuf_refcnt_update(mi, 1);\n+\t\t\t}\n+\t\t\tprev_seg = cur_seg;\n+\t\t\tcur_seg = cur_seg->next;\n+\t\t\tprev_seg->next = NULL;\n+\t\t\trte_pktmbuf_free(prev_seg);\n+\t\t}\n+\t\tif (cur_seg == NULL) {\n+\t\t\tsg_temp->final = 1;\n+\t\t\tcpu_to_hw_sg(sg_temp);\n+\t\t\tbreak;\n+\t\t}\n+\t\tcpu_to_hw_sg(sg_temp);\n+\t}\n+\treturn 0;\n+}\n+\n /* Handle mbufs which are not segmented (non SG) */\n static inline void\n tx_on_dpaa_pool_unsegmented(struct rte_mbuf *mbuf,\n@@ -460,6 +612,12 @@ tx_on_dpaa_pool(struct rte_mbuf *mbuf,\n \tif (mbuf->nb_segs == 1) {\n \t\t/* Case for non-segmented buffers */\n \t\ttx_on_dpaa_pool_unsegmented(mbuf, bp_info, fd_arr);\n+\t} else if (mbuf->nb_segs > 1 &&\n+\t\t mbuf->nb_segs <= DPAA_SGT_MAX_ENTRIES) {\n+\t\tif (dpaa_eth_mbuf_to_sg_fd(mbuf, fd_arr, bp_info->bpid)) {\n+\t\t\tDPAA_PMD_DEBUG(\"Unable to create Scatter Gather FD\");\n+\t\t\treturn 1;\n+\t\t}\n \t} else {\n \t\tDPAA_PMD_DEBUG(\"Number of Segments not supported\");\n \t\treturn 1;\ndiff --git a/drivers/net/dpaa/dpaa_rxtx.h b/drivers/net/dpaa/dpaa_rxtx.h\nindex 624ddda..351fc00 100644\n--- a/drivers/net/dpaa/dpaa_rxtx.h\n+++ b/drivers/net/dpaa/dpaa_rxtx.h\n@@ -58,6 +58,8 @@\n /* L4 Type field: TCP */\n #define DPAA_L4_PARSE_RESULT_TCP\t0x20\n \n+#define DPAA_SGT_MAX_ENTRIES 16 /* maximum number of entries in SG Table */\n+\n #define DPAA_MAX_DEQUEUE_NUM_FRAMES 63\n \t/** <Maximum number of frames to be dequeued in a single rx call*/\n \n@@ -283,4 +285,11 @@ uint16_t dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs);\n uint16_t dpaa_eth_tx_drop_all(void *q __rte_unused,\n \t\t\t struct rte_mbuf **bufs __rte_unused,\n \t\t\t uint16_t nb_bufs __rte_unused);\n+\n+struct rte_mbuf *dpaa_eth_sg_to_mbuf(struct qm_fd *fd, uint32_t ifid);\n+\n+int dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,\n+\t\t\t struct qm_fd *fd,\n+\t\t\t uint32_t bpid);\n+\n #endif\n", "prefixes": [ "dpdk-dev", "v3", "38/40" ] }