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GET /api/patches/34912/?format=api
{ "id": 34912, "url": "http://patches.dpdk.org/api/patches/34912/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/79ed594d7f46f9ba197622f77eb1374fbfcf445b.1517685185.git.rahul.lakkireddy@chelsio.com/", "project": { "id": 1, "url": "http://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": "<79ed594d7f46f9ba197622f77eb1374fbfcf445b.1517685185.git.rahul.lakkireddy@chelsio.com>", "list_archive_url": "https://inbox.dpdk.org/dev/79ed594d7f46f9ba197622f77eb1374fbfcf445b.1517685185.git.rahul.lakkireddy@chelsio.com", "date": "2018-02-04T06:06:09", "name": "[dpdk-dev,4/7] cxgbe: add support to get programmed RSS hash configuration and key", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "75a247bb468f84a0e3a9313b5c3fbe1c72a08003", "submitter": { "id": 241, "url": "http://patches.dpdk.org/api/people/241/?format=api", "name": "Rahul Lakkireddy", "email": "rahul.lakkireddy@chelsio.com" }, "delegate": { "id": 319, "url": "http://patches.dpdk.org/api/users/319/?format=api", "username": "fyigit", "first_name": "Ferruh", "last_name": "Yigit", "email": "ferruh.yigit@amd.com" }, "mbox": "http://patches.dpdk.org/project/dpdk/patch/79ed594d7f46f9ba197622f77eb1374fbfcf445b.1517685185.git.rahul.lakkireddy@chelsio.com/mbox/", "series": [], "comments": "http://patches.dpdk.org/api/patches/34912/comments/", "check": "success", "checks": "http://patches.dpdk.org/api/patches/34912/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 [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id EBE10A488;\n\tSun, 4 Feb 2018 07:06:47 +0100 (CET)", "from stargate.chelsio.com (stargate.chelsio.com [12.32.117.8])\n\tby dpdk.org (Postfix) with ESMTP id 85C198E01\n\tfor <dev@dpdk.org>; Sun, 4 Feb 2018 07:06:46 +0100 (CET)", "from localhost (scalar.blr.asicdesigners.com [10.193.185.94])\n\tby stargate.chelsio.com (8.13.8/8.13.8) with ESMTP id w1466geM030186; \n\tSat, 3 Feb 2018 22:06:43 -0800" ], "From": "Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>", "To": "dev@dpdk.org", "Cc": "kumaras@chelsio.com, surendra@chelsio.com, nirranjan@chelsio.com,\n\tindranil@chelsio.com", "Date": "Sun, 4 Feb 2018 11:36:09 +0530", "Message-Id": "<79ed594d7f46f9ba197622f77eb1374fbfcf445b.1517685185.git.rahul.lakkireddy@chelsio.com>", "X-Mailer": "git-send-email 2.5.3", "In-Reply-To": [ "<cover.1517685185.git.rahul.lakkireddy@chelsio.com>", "<cover.1517685185.git.rahul.lakkireddy@chelsio.com>" ], "References": [ "<cover.1517685185.git.rahul.lakkireddy@chelsio.com>", "<cover.1517685185.git.rahul.lakkireddy@chelsio.com>" ], "Subject": "[dpdk-dev] [PATCH 4/7] cxgbe: add support to get programmed RSS\n\thash configuration and key", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://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": "<https://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: Kumar Sanghvi <kumaras@chelsio.com>\n\nOriginal work by Surendra Mobiya <surendra@chelsio.com>\n\nSigned-off-by: Kumar Sanghvi <kumaras@chelsio.com>\nSigned-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>\n---\n drivers/net/cxgbe/base/common.h | 3 +++\n drivers/net/cxgbe/base/t4_hw.c | 46 ++++++++++++++++++++++++++++++++++\n drivers/net/cxgbe/cxgbe_ethdev.c | 53 ++++++++++++++++++++++++++++++++++++++++\n 3 files changed, 102 insertions(+)", "diff": "diff --git a/drivers/net/cxgbe/base/common.h b/drivers/net/cxgbe/base/common.h\nindex 5301f7474..dd282a933 100644\n--- a/drivers/net/cxgbe/base/common.h\n+++ b/drivers/net/cxgbe/base/common.h\n@@ -410,9 +410,12 @@ int t4_config_rss_range(struct adapter *adapter, int mbox, unsigned int viid,\n \t\t\tint start, int n, const u16 *rspq, unsigned int nrspq);\n int t4_config_vi_rss(struct adapter *adapter, int mbox, unsigned int viid,\n \t\t unsigned int flags, unsigned int defq);\n+int t4_read_config_vi_rss(struct adapter *adapter, int mbox, unsigned int viid,\n+\t\t\t u64 *flags, unsigned int *defq);\n void t4_fw_tp_pio_rw(struct adapter *adap, u32 *vals, unsigned int nregs,\n \t\t unsigned int start_index, unsigned int rw);\n void t4_write_rss_key(struct adapter *adap, u32 *key, int idx);\n+void t4_read_rss_key(struct adapter *adap, u32 *key);\n \n enum t4_bar2_qtype { T4_BAR2_QTYPE_EGRESS, T4_BAR2_QTYPE_INGRESS };\n int t4_bar2_sge_qregs(struct adapter *adapter, unsigned int qid,\ndiff --git a/drivers/net/cxgbe/base/t4_hw.c b/drivers/net/cxgbe/base/t4_hw.c\nindex 9eb83fd5e..2d7214622 100644\n--- a/drivers/net/cxgbe/base/t4_hw.c\n+++ b/drivers/net/cxgbe/base/t4_hw.c\n@@ -2203,6 +2203,18 @@ void t4_fw_tp_pio_rw(struct adapter *adap, u32 *vals, unsigned int nregs,\n \t}\n }\n \n+/**\n+ * t4_read_rss_key - read the global RSS key\n+ * @adap: the adapter\n+ * @key: 10-entry array holding the 320-bit RSS key\n+ *\n+ * Reads the global 320-bit RSS key.\n+ */\n+void t4_read_rss_key(struct adapter *adap, u32 *key)\n+{\n+\tt4_fw_tp_pio_rw(adap, key, 10, A_TP_RSS_SECRET_KEY0, 1);\n+}\n+\n /**\n * t4_write_rss_key - program one of the RSS keys\n * @adap: the adapter\n@@ -2363,6 +2375,40 @@ int t4_config_vi_rss(struct adapter *adapter, int mbox, unsigned int viid,\n \treturn t4_wr_mbox(adapter, mbox, &c, sizeof(c), NULL);\n }\n \n+/**\n+ * t4_read_config_vi_rss - read the configured per VI RSS settings\n+ * @adapter: the adapter\n+ * @mbox: mbox to use for the FW command\n+ * @viid: the VI id\n+ * @flags: where to place the configured flags\n+ * @defq: where to place the id of the default RSS queue for the VI.\n+ *\n+ * Read configured VI-specific RSS properties.\n+ */\n+int t4_read_config_vi_rss(struct adapter *adapter, int mbox, unsigned int viid,\n+\t\t\t u64 *flags, unsigned int *defq)\n+{\n+\tstruct fw_rss_vi_config_cmd c;\n+\tunsigned int result;\n+\tint ret;\n+\n+\tmemset(&c, 0, sizeof(c));\n+\tc.op_to_viid = cpu_to_be32(V_FW_CMD_OP(FW_RSS_VI_CONFIG_CMD) |\n+\t\t\t\t F_FW_CMD_REQUEST | F_FW_CMD_READ |\n+\t\t\t\t V_FW_RSS_VI_CONFIG_CMD_VIID(viid));\n+\tc.retval_len16 = cpu_to_be32(FW_LEN16(c));\n+\tret = t4_wr_mbox(adapter, mbox, &c, sizeof(c), &c);\n+\tif (!ret) {\n+\t\tresult = be32_to_cpu(c.u.basicvirtual.defaultq_to_udpen);\n+\t\tif (defq)\n+\t\t\t*defq = G_FW_RSS_VI_CONFIG_CMD_DEFAULTQ(result);\n+\t\tif (flags)\n+\t\t\t*flags = result & M_FW_RSS_VI_CONFIG_CMD_DEFAULTQ;\n+\t}\n+\n+\treturn ret;\n+}\n+\n /**\n * init_cong_ctrl - initialize congestion control parameters\n * @a: the alpha values for congestion control\ndiff --git a/drivers/net/cxgbe/cxgbe_ethdev.c b/drivers/net/cxgbe/cxgbe_ethdev.c\nindex 7b902763b..1343041ef 100644\n--- a/drivers/net/cxgbe/cxgbe_ethdev.c\n+++ b/drivers/net/cxgbe/cxgbe_ethdev.c\n@@ -819,6 +819,58 @@ static int cxgbe_dev_rss_hash_update(struct rte_eth_dev *dev,\n \treturn 0;\n }\n \n+/* Get RSS hash configuration\n+ */\n+static int cxgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,\n+\t\t\t\t struct rte_eth_rss_conf *rss_conf)\n+{\n+\tstruct port_info *pi = (struct port_info *)(dev->data->dev_private);\n+\tstruct adapter *adapter = pi->adapter;\n+\tu64 rss_hf = 0;\n+\tu64 flags = 0;\n+\tint err;\n+\n+\terr = t4_read_config_vi_rss(adapter, adapter->mbox, pi->viid,\n+\t\t\t\t &flags, NULL);\n+\n+\tif (err)\n+\t\treturn err;\n+\n+\tif (flags & F_FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN) {\n+\t\trss_hf |= ETH_RSS_NONFRAG_IPV6_TCP;\n+\t\tif (flags & F_FW_RSS_VI_CONFIG_CMD_UDPEN)\n+\t\t\trss_hf |= ETH_RSS_NONFRAG_IPV6_UDP;\n+\t}\n+\n+\tif (flags & F_FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN)\n+\t\trss_hf |= ETH_RSS_IPV6;\n+\n+\tif (flags & F_FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN) {\n+\t\trss_hf |= ETH_RSS_NONFRAG_IPV4_TCP;\n+\t\tif (flags & F_FW_RSS_VI_CONFIG_CMD_UDPEN)\n+\t\t\trss_hf |= ETH_RSS_NONFRAG_IPV4_UDP;\n+\t}\n+\n+\tif (flags & F_FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN)\n+\t\trss_hf |= ETH_RSS_IPV4;\n+\n+\trss_conf->rss_hf = rss_hf;\n+\n+\tif (rss_conf->rss_key) {\n+\t\tu32 key[10], mod_key[10];\n+\t\tint i, j;\n+\n+\t\tt4_read_rss_key(adapter, key);\n+\n+\t\tfor (i = 9, j = 0; i >= 0; i--, j++)\n+\t\t\tmod_key[j] = be32_to_cpu(key[i]);\n+\n+\t\tmemcpy(rss_conf->rss_key, mod_key, CXGBE_DEFAULT_RSS_KEY_LEN);\n+\t}\n+\n+\treturn 0;\n+}\n+\n static int cxgbe_get_eeprom_length(struct rte_eth_dev *dev)\n {\n \tRTE_SET_USED(dev);\n@@ -1018,6 +1070,7 @@ static const struct eth_dev_ops cxgbe_eth_dev_ops = {\n \t.set_eeprom\t\t= cxgbe_set_eeprom,\n \t.get_reg\t\t= cxgbe_get_regs,\n \t.rss_hash_update\t= cxgbe_dev_rss_hash_update,\n+\t.rss_hash_conf_get\t= cxgbe_dev_rss_hash_conf_get,\n };\n \n /*\n", "prefixes": [ "dpdk-dev", "4/7" ] }