Patch Detail

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{
    "id": 26403,
    "url": "https://patches.dpdk.org/api/patches/26403/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/1499179471-19145-39-git-send-email-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": "<1499179471-19145-39-git-send-email-shreyansh.jain@nxp.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/1499179471-19145-39-git-send-email-shreyansh.jain@nxp.com",
    "date": "2017-07-04T14:44:29",
    "name": "[dpdk-dev,v2,38/40] net/dpaa: add support for Scattered Rx",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "562fd2c72bbe256f2809ffce2f3f3ba93d454cab",
    "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/1499179471-19145-39-git-send-email-shreyansh.jain@nxp.com/mbox/",
    "series": [],
    "comments": "https://patches.dpdk.org/api/patches/26403/comments/",
    "check": "warning",
    "checks": "https://patches.dpdk.org/api/patches/26403/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
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        "Delivered-To": "patchwork@dpdk.org",
        "Received": [
            "from [92.243.14.124] (localhost [IPv6:::1])\n\tby dpdk.org (Postfix) with ESMTP id D8B5C7CA9;\n\tTue,  4 Jul 2017 16:36:51 +0200 (CEST)",
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        ],
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        "From": "Shreyansh Jain <shreyansh.jain@nxp.com>",
        "To": "<dev@dpdk.org>",
        "CC": "<ferruh.yigit@intel.com>, <hemant.agrawal@nxp.com>",
        "Date": "Tue, 4 Jul 2017 20:14:29 +0530",
        "Message-ID": "<1499179471-19145-39-git-send-email-shreyansh.jain@nxp.com>",
        "X-Mailer": "git-send-email 2.7.4",
        "In-Reply-To": "<1499179471-19145-1-git-send-email-shreyansh.jain@nxp.com>",
        "References": "<1497591668-3320-1-git-send-email-shreyansh.jain@nxp.com>\n\t<1499179471-19145-1-git-send-email-shreyansh.jain@nxp.com>",
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        "Subject": "[dpdk-dev] [PATCH v2 38/40] net/dpaa: add support for Scattered Rx",
        "X-BeenThere": "dev@dpdk.org",
        "X-Mailman-Version": "2.1.15",
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        "List-Id": "DPDK patches and discussions <dev.dpdk.org>",
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        "List-Archive": "<http://dpdk.org/ml/archives/dev/>",
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        "Errors-To": "dev-bounces@dpdk.org",
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    },
    "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      | 162 ++++++++++++++++++++++++++++++++++++++\n drivers/net/dpaa/dpaa_rxtx.h      |   9 +++\n 3 files changed, 172 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 9afc722..5bf4d68 100644\n--- a/drivers/net/dpaa/dpaa_rxtx.c\n+++ b/drivers/net/dpaa/dpaa_rxtx.c\n@@ -276,18 +276,83 @@ 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 pool_info_entry *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} else {\n+\t\t\tprev_seg = cur_seg;\n+\t\t}\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 pool_info_entry *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 +455,95 @@ 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 pool_info_entry *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 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+\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 uint16_t\n dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)\n {\n@@ -456,6 +610,14 @@ dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)\n \t\t\t\t\t\t\tdpaa_checksum_offload(mbuf, &fd_arr[loop],\n \t\t\t\t\t\t\t\tmbuf->buf_addr);\n \t\t\t\t\t}\n+\t\t\t\t} else if (mbuf->nb_segs > 1 && mbuf->nb_segs <= DPAA_SGT_MAX_ENTRIES) {\n+\t\t\t\t\tif (dpaa_eth_mbuf_to_sg_fd(mbuf,\n+\t\t\t\t\t\t&fd_arr[loop], bp_info->bpid)) {\n+\t\t\t\t\t\tDPAA_PMD_DEBUG(\"Unable to create Scatter Gather FD\");\n+\t\t\t\t\t\tframes_to_send = loop;\n+\t\t\t\t\t\tnb_bufs = loop;\n+\t\t\t\t\t\tgoto send_pkts;\n+\t\t\t\t\t}\n \t\t\t\t} else {\n \t\t\t\t\tDPAA_PMD_DEBUG(\"Number of Segments not supported\");\n \t\t\t\t\t/* Set frames_to_send & nb_bufs so that\ndiff --git a/drivers/net/dpaa/dpaa_rxtx.h b/drivers/net/dpaa/dpaa_rxtx.h\nindex b1c292b..afc33e2 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@@ -251,4 +253,11 @@ 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",
        "v2",
        "38/40"
    ]
}