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GET /api/patches/8526/?format=api
{ "id": 8526, "url": "https://patches.dpdk.org/api/patches/8526/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/1446467130-300-4-git-send-email-alejandro.lucero@netronome.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": "<1446467130-300-4-git-send-email-alejandro.lucero@netronome.com>", "list_archive_url": "https://inbox.dpdk.org/dev/1446467130-300-4-git-send-email-alejandro.lucero@netronome.com", "date": "2015-11-02T12:25:23", "name": "[dpdk-dev,v5,3/9] nfp: adding rss functionality", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "407b965c6914ea1e3aad0b63c24fb894c42b7769", "submitter": { "id": 270, "url": "https://patches.dpdk.org/api/people/270/?format=api", "name": "Alejandro Lucero", "email": "alejandro.lucero@netronome.com" }, "delegate": null, "mbox": "https://patches.dpdk.org/project/dpdk/patch/1446467130-300-4-git-send-email-alejandro.lucero@netronome.com/mbox/", "series": [], "comments": "https://patches.dpdk.org/api/patches/8526/comments/", "check": "pending", "checks": "https://patches.dpdk.org/api/patches/8526/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 AF7418E8A;\n\tMon, 2 Nov 2015 13:25:33 +0100 (CET)", "from ubuntu (host217-39-174-19.in-addr.btopenworld.com\n\t[217.39.174.19]) by dpdk.org (Postfix) with SMTP id D1A018E81\n\tfor <dev@dpdk.org>; Mon, 2 Nov 2015 13:25:30 +0100 (CET)", "by ubuntu (Postfix, from userid 5466)\n\tid 35FDFEA76C; Mon, 2 Nov 2015 12:25:30 +0000 (GMT)" ], "From": "\"Alejandro.Lucero\" <alejandro.lucero@netronome.com>", "To": "dev@dpdk.org", "Date": "Mon, 2 Nov 2015 12:25:23 +0000", "Message-Id": "<1446467130-300-4-git-send-email-alejandro.lucero@netronome.com>", "X-Mailer": "git-send-email 1.7.9.5", "In-Reply-To": "<1446467130-300-1-git-send-email-alejandro.lucero@netronome.com>", "References": "<1446467130-300-1-git-send-email-alejandro.lucero@netronome.com>", "Subject": "[dpdk-dev] [PATCH v5 3/9] nfp: adding rss functionality", "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: \"Alejandro.Lucero\" <alejandro.lucero@netronome.com>\n\nSigned-off-by: Alejandro.Lucero <alejandro.lucero@netronome.com>\nSigned-off-by: Rolf.Neugebauer <rolf.neugebauer@netronome.com>\n---\n drivers/net/nfp/nfp_net.c | 214 +++++++++++++++++++++++++++++++++++++++++++++\n 1 file changed, 214 insertions(+)", "diff": "diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c\nindex 8339c2d..51855b1 100644\n--- a/drivers/net/nfp/nfp_net.c\n+++ b/drivers/net/nfp/nfp_net.c\n@@ -1503,6 +1503,220 @@ xmit_end:\n \treturn i;\n }\n \n+/* Update Redirection Table(RETA) of Receive Side Scaling of Ethernet device */\n+static int\n+nfp_net_reta_update(struct rte_eth_dev *dev,\n+\t\t struct rte_eth_rss_reta_entry64 *reta_conf,\n+\t\t uint16_t reta_size)\n+{\n+\tuint32_t reta, mask;\n+\tint i, j;\n+\tint idx, shift;\n+\tuint32_t update;\n+\tstruct nfp_net_hw *hw =\n+\t\tNFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);\n+\n+\tif (!(hw->ctrl & NFP_NET_CFG_CTRL_RSS))\n+\t\treturn -EINVAL;\n+\n+\tif (reta_size != NFP_NET_CFG_RSS_ITBL_SZ) {\n+\t\tRTE_LOG(ERR, PMD, \"The size of hash lookup table configured \"\n+\t\t\t\"(%d) doesn't match the number hardware can supported \"\n+\t\t\t\"(%d)\\n\", reta_size, NFP_NET_CFG_RSS_ITBL_SZ);\n+\t\treturn -EINVAL;\n+\t}\n+\n+\t/*\n+\t * Update Redirection Table. There are 128 8bit-entries which can be\n+\t * manage as 32 32bit-entries\n+\t */\n+\tfor (i = 0; i < reta_size; i += 4) {\n+\t\t/* Handling 4 RSS entries per loop */\n+\t\tidx = i / RTE_RETA_GROUP_SIZE;\n+\t\tshift = i % RTE_RETA_GROUP_SIZE;\n+\t\tmask = (uint8_t)((reta_conf[idx].mask >> shift) & 0xF);\n+\n+\t\tif (!mask)\n+\t\t\tcontinue;\n+\n+\t\treta = 0;\n+\t\t/* If all 4 entries were set, don't need read RETA register */\n+\t\tif (mask != 0xF)\n+\t\t\treta = nn_cfg_readl(hw, NFP_NET_CFG_RSS_ITBL + i);\n+\n+\t\tfor (j = 0; j < 4; j++) {\n+\t\t\tif (!(mask & (0x1 << j)))\n+\t\t\t\tcontinue;\n+\t\t\tif (mask != 0xF)\n+\t\t\t\t/* Clearing the entry bits */\n+\t\t\t\treta &= ~(0xFF << (8 * j));\n+\t\t\treta |= reta_conf[idx].reta[shift + j] << (8 * j);\n+\t\t}\n+\t\tnn_cfg_writel(hw, NFP_NET_CFG_RSS_ITBL + shift, reta);\n+\t}\n+\n+\tupdate = NFP_NET_CFG_UPDATE_RSS;\n+\n+\tif (nfp_net_reconfig(hw, hw->ctrl, update) < 0)\n+\t\treturn -EIO;\n+\n+\treturn 0;\n+}\n+\n+ /* Query Redirection Table(RETA) of Receive Side Scaling of Ethernet device. */\n+static int\n+nfp_net_reta_query(struct rte_eth_dev *dev,\n+\t\t struct rte_eth_rss_reta_entry64 *reta_conf,\n+\t\t uint16_t reta_size)\n+{\n+\tuint8_t i, j, mask;\n+\tint idx, shift;\n+\tuint32_t reta;\n+\tstruct nfp_net_hw *hw;\n+\n+\thw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);\n+\n+\tif (!(hw->ctrl & NFP_NET_CFG_CTRL_RSS))\n+\t\treturn -EINVAL;\n+\n+\tif (reta_size != NFP_NET_CFG_RSS_ITBL_SZ) {\n+\t\tRTE_LOG(ERR, PMD, \"The size of hash lookup table configured \"\n+\t\t\t\"(%d) doesn't match the number hardware can supported \"\n+\t\t\t\"(%d)\\n\", reta_size, NFP_NET_CFG_RSS_ITBL_SZ);\n+\t\treturn -EINVAL;\n+\t}\n+\n+\t/*\n+\t * Reading Redirection Table. There are 128 8bit-entries which can be\n+\t * manage as 32 32bit-entries\n+\t */\n+\tfor (i = 0; i < reta_size; i += 4) {\n+\t\t/* Handling 4 RSS entries per loop */\n+\t\tidx = i / RTE_RETA_GROUP_SIZE;\n+\t\tshift = i % RTE_RETA_GROUP_SIZE;\n+\t\tmask = (uint8_t)((reta_conf[idx].mask >> shift) & 0xF);\n+\n+\t\tif (!mask)\n+\t\t\tcontinue;\n+\n+\t\treta = nn_cfg_readl(hw, NFP_NET_CFG_RSS_ITBL + shift);\n+\t\tfor (j = 0; j < 4; j++) {\n+\t\t\tif (!(mask & (0x1 << j)))\n+\t\t\t\tcontinue;\n+\t\t\treta_conf->reta[shift + j] =\n+\t\t\t\t(uint8_t)((reta >> (8 * j)) & 0xF);\n+\t\t}\n+\t}\n+\treturn 0;\n+}\n+\n+static int\n+nfp_net_rss_hash_update(struct rte_eth_dev *dev,\n+\t\t\tstruct rte_eth_rss_conf *rss_conf)\n+{\n+\tuint32_t update;\n+\tuint32_t cfg_rss_ctrl = 0;\n+\tuint8_t key;\n+\tuint64_t rss_hf;\n+\tint i;\n+\tstruct nfp_net_hw *hw;\n+\n+\thw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);\n+\n+\trss_hf = rss_conf->rss_hf;\n+\n+\t/* Checking if RSS is enabled */\n+\tif (!(hw->ctrl & NFP_NET_CFG_CTRL_RSS)) {\n+\t\tif (rss_hf != 0) { /* Enable RSS? */\n+\t\t\tRTE_LOG(ERR, PMD, \"RSS unsupported\\n\");\n+\t\t\treturn -EINVAL;\n+\t\t}\n+\t\treturn 0; /* Nothing to do */\n+\t}\n+\n+\tif (rss_conf->rss_key_len > NFP_NET_CFG_RSS_KEY_SZ) {\n+\t\tRTE_LOG(ERR, PMD, \"hash key too long\\n\");\n+\t\treturn -EINVAL;\n+\t}\n+\n+\tif (rss_hf & ETH_RSS_IPV4)\n+\t\tcfg_rss_ctrl |= NFP_NET_CFG_RSS_IPV4 |\n+\t\t\t\tNFP_NET_CFG_RSS_IPV4_TCP |\n+\t\t\t\tNFP_NET_CFG_RSS_IPV4_UDP;\n+\n+\tif (rss_hf & ETH_RSS_IPV6)\n+\t\tcfg_rss_ctrl |= NFP_NET_CFG_RSS_IPV6 |\n+\t\t\t\tNFP_NET_CFG_RSS_IPV6_TCP |\n+\t\t\t\tNFP_NET_CFG_RSS_IPV6_UDP;\n+\n+\t/* configuring where to apply the RSS hash */\n+\tnn_cfg_writel(hw, NFP_NET_CFG_RSS_CTRL, cfg_rss_ctrl);\n+\n+\t/* Writing the key byte a byte */\n+\tfor (i = 0; i < rss_conf->rss_key_len; i++) {\n+\t\tmemcpy(&key, &rss_conf->rss_key[i], 1);\n+\t\tnn_cfg_writeb(hw, NFP_NET_CFG_RSS_KEY + i, key);\n+\t}\n+\n+\t/* Writing the key size */\n+\tnn_cfg_writeb(hw, NFP_NET_CFG_RSS_KEY_SZ, rss_conf->rss_key_len);\n+\n+\tupdate = NFP_NET_CFG_UPDATE_RSS;\n+\n+\tif (nfp_net_reconfig(hw, hw->ctrl, update) < 0)\n+\t\treturn -EIO;\n+\n+\treturn 0;\n+}\n+\n+static int\n+nfp_net_rss_hash_conf_get(struct rte_eth_dev *dev,\n+\t\t\t struct rte_eth_rss_conf *rss_conf)\n+{\n+\tuint64_t rss_hf;\n+\tuint32_t cfg_rss_ctrl;\n+\tuint8_t key;\n+\tint i;\n+\tstruct nfp_net_hw *hw;\n+\n+\thw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);\n+\n+\tif (!(hw->ctrl & NFP_NET_CFG_CTRL_RSS))\n+\t\treturn -EINVAL;\n+\n+\trss_hf = rss_conf->rss_hf;\n+\tcfg_rss_ctrl = nn_cfg_readl(hw, NFP_NET_CFG_RSS_CTRL);\n+\n+\tif (cfg_rss_ctrl & NFP_NET_CFG_RSS_IPV4)\n+\t\trss_hf |= ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_NONFRAG_IPV4_UDP;\n+\n+\tif (cfg_rss_ctrl & NFP_NET_CFG_RSS_IPV4_TCP)\n+\t\trss_hf |= ETH_RSS_NONFRAG_IPV4_TCP;\n+\n+\tif (cfg_rss_ctrl & NFP_NET_CFG_RSS_IPV6_TCP)\n+\t\trss_hf |= ETH_RSS_NONFRAG_IPV6_TCP;\n+\n+\tif (cfg_rss_ctrl & NFP_NET_CFG_RSS_IPV4_UDP)\n+\t\trss_hf |= ETH_RSS_NONFRAG_IPV4_UDP;\n+\n+\tif (cfg_rss_ctrl & NFP_NET_CFG_RSS_IPV6_UDP)\n+\t\trss_hf |= ETH_RSS_NONFRAG_IPV6_UDP;\n+\n+\tif (cfg_rss_ctrl & NFP_NET_CFG_RSS_IPV6)\n+\t\trss_hf |= ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_NONFRAG_IPV6_UDP;\n+\n+\t/* Reading the key size */\n+\trss_conf->rss_key_len = nn_cfg_readl(hw, NFP_NET_CFG_RSS_KEY_SZ);\n+\n+\t/* Reading the key byte a byte */\n+\tfor (i = 0; i < rss_conf->rss_key_len; i++) {\n+\t\tkey = nn_cfg_readb(hw, NFP_NET_CFG_RSS_KEY + i);\n+\t\tmemcpy(&rss_conf->rss_key[i], &key, 1);\n+\t}\n+\n+\treturn 0;\n+}\n+\n /* Initialise and register driver with DPDK Application */\n static struct eth_dev_ops nfp_net_eth_dev_ops = {\n \t.dev_configure\t\t= nfp_net_configure,\n", "prefixes": [ "dpdk-dev", "v5", "3/9" ] }