From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id 2795E5581 for ; Tue, 24 May 2016 19:28:20 +0200 (CEST) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga101.fm.intel.com with ESMTP; 24 May 2016 10:28:19 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.26,360,1459839600"; d="scan'208";a="961424923" Received: from shvmail01.sh.intel.com ([10.239.29.42]) by orsmga001.jf.intel.com with ESMTP; 24 May 2016 10:28:18 -0700 Received: from shecgisg004.sh.intel.com (shecgisg004.sh.intel.com [10.239.29.89]) by shvmail01.sh.intel.com with ESMTP id u4OHSElT003865; Wed, 25 May 2016 01:28:14 +0800 Received: from shecgisg004.sh.intel.com (localhost [127.0.0.1]) by shecgisg004.sh.intel.com (8.13.6/8.13.6/SuSE Linux 0.8) with ESMTP id u4OHSBYg009548; Wed, 25 May 2016 01:28:13 +0800 Received: (from zhetao@localhost) by shecgisg004.sh.intel.com (8.13.6/8.13.6/Submit) id u4OHSB3l009544; Wed, 25 May 2016 01:28:11 +0800 From: Zhe Tao To: dev@dpdk.org Cc: zhe.tao@intel.com, jingjing.wu@intel.com Date: Wed, 25 May 2016 01:28:04 +0800 Message-Id: <1464110886-9504-2-git-send-email-zhe.tao@intel.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1464110886-9504-1-git-send-email-zhe.tao@intel.com> References: <1458895321-21896-1-git-send-email-zhe.tao@intel.com> <1464110886-9504-1-git-send-email-zhe.tao@intel.com> Subject: [dpdk-dev] [PATCH v8 1/3] i40e: support floating VEB config X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 May 2016 17:28:20 -0000 Add the new floating related argument option in the devarg. Using this parameter, all the samples can decide whether to use legacy VEB/VEPA or floating VEB. To enable this feature, the user should pass a devargs parameter to the EAL like "-w 84:00.0,enable_floating=1", and the application will make sure the PMD will use the floating VEB feature for all the VFs created by this PF device. Signed-off-by: Zhe Tao --- drivers/net/i40e/i40e_ethdev.c | 44 ++++++++++++++++++++++++++++++++++++++++++ drivers/net/i40e/i40e_ethdev.h | 6 ++++++ 2 files changed, 50 insertions(+) diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index 24777d5..e558c63 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -750,6 +750,44 @@ i40e_add_tx_flow_control_drop_filter(struct i40e_pf *pf) " frames from VSIs."); } +static int i40e_check_floating_handler(__rte_unused const char *key, + const char *value, + __rte_unused void *opaque) +{ + if (strcmp(value, "1")) + return -1; + + return 0; +} + +static int +i40e_check_floating(struct rte_devargs *devargs) +{ + struct rte_kvargs *kvlist; + const char *floating_key = "enable_floating"; + + if (devargs == NULL) + return 0; + + kvlist = rte_kvargs_parse(devargs->args, NULL); + if (kvlist == NULL) + return 0; + + if (!rte_kvargs_count(kvlist, floating_key)) { + rte_kvargs_free(kvlist); + return 0; + } + /* Floating is enabled when there's key-value pair: enable_floating=1 */ + if (rte_kvargs_process(kvlist, floating_key, + i40e_check_floating_handler, NULL) < 0) { + rte_kvargs_free(kvlist); + return 0; + } + rte_kvargs_free(kvlist); + + return 1; +} + static int eth_i40e_dev_init(struct rte_eth_dev *dev) { @@ -843,6 +881,12 @@ eth_i40e_dev_init(struct rte_eth_dev *dev) ((hw->nvm.version >> 4) & 0xff), (hw->nvm.version & 0xf), hw->nvm.eetrack); + /* Need the special FW version support floating VEB */ + if (hw->aq.fw_maj_ver >= FLOATING_FW_MAJ) { + pf->floating = i40e_check_floating(pci_dev->devargs); + } else { + pf->floating = false; + } /* Clear PXE mode */ i40e_clear_pxe_mode(hw); diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h index cfd2399..8297c5f 100644 --- a/drivers/net/i40e/i40e_ethdev.h +++ b/drivers/net/i40e/i40e_ethdev.h @@ -36,6 +36,7 @@ #include #include +#include #define I40E_VLAN_TAG_SIZE 4 @@ -171,6 +172,10 @@ enum i40e_flxpld_layer_idx { #define I40E_QUEUE_ITR_INTERVAL_DEFAULT 32 /* 32 us */ #define I40E_QUEUE_ITR_INTERVAL_MAX 8160 /* 8160 us */ +/* Special FW support this floating VEB feature */ +#define FLOATING_FW_MAJ 5 +#define FLOATING_FW_MIN 0 + struct i40e_adapter; /** @@ -450,6 +455,7 @@ struct i40e_pf { struct i40e_fc_conf fc_conf; /* Flow control conf */ struct i40e_mirror_rule_list mirror_list; uint16_t nb_mirror_rule; /* The number of mirror rules */ + uint16_t floating; /* The flag to use the floating VEB */ }; enum pending_msg { -- 2.1.4