From patchwork Mon Oct 23 23:08:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacob Keller X-Patchwork-Id: 13433704 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3EB7A24216 for ; Mon, 23 Oct 2023 23:08:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Sx7Bemfr" Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5B69FD68 for ; Mon, 23 Oct 2023 16:08:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1698102513; x=1729638513; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=vBlSk2WbyhSkIJMcaOSQZ4PEcie8UzGzVZtmSZiZD4E=; b=Sx7Bemfrc44V3kt0bcJJqhtywA/Kmu9oBbbNnVgH0StHbWZEEqf5916r bSJCWLDDBuEJ1n4PzbGk3oXOo6s3eg6eZyixQUtrgCB9f+phEQLrDt19d EC+hNQl3sFAIdIZEbpnNscvS05OeRK1GPmaIgjAK8vlPoDfn26DRYyksR PttSnoy5NLOyDqyR8YH0z7i7XbuixcNZf/uQ65bV+vFXQNy4MKwJDdEWx kXB/urpUp7sD0nCBOTSWx7musAQGVFNIAdLGMV732tjyKhKKfrkgIs8dO GlG3wXjbgJCt32giDIWvZJlgd83Cu37FK40fHIneADYQ0ZQOihggeqE2n Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10872"; a="5573692" X-IronPort-AV: E=Sophos;i="6.03,246,1694761200"; d="scan'208";a="5573692" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Oct 2023 16:08:32 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10872"; a="793288316" X-IronPort-AV: E=Sophos;i="6.03,246,1694761200"; d="scan'208";a="793288316" Received: from jekeller-desk.amr.corp.intel.com (HELO jekeller-desk.jekeller.internal) ([10.166.241.1]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Oct 2023 16:08:30 -0700 From: Jacob Keller To: netdev@vger.kernel.org, David Miller , Jakub Kicinski Cc: Michal Schmidt , Jacob Keller Subject: [PATCH net-next 1/1] iavf: delete the iavf client interface Date: Mon, 23 Oct 2023 16:08:17 -0700 Message-ID: <20231023230826.531858-2-jacob.e.keller@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231023230826.531858-1-jacob.e.keller@intel.com> References: <20231023230826.531858-1-jacob.e.keller@intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org From: Michal Schmidt The iavf client interface was added in 2017 by commit ed0e894de7c1 ("i40evf: add client interface"), but there have never been any in-tree callers. It's not useful for future development either. The Intel out-of-tree iavf and irdma drivers instead use an auxiliary bus, which is a better solution. Remove the iavf client interface code. Also gone are the client_task work and the client_lock mutex. Signed-off-by: Michal Schmidt Reviewed-by: Jacob Keller Signed-off-by: Jacob Keller --- drivers/net/ethernet/intel/iavf/Makefile | 2 +- drivers/net/ethernet/intel/iavf/iavf.h | 27 - drivers/net/ethernet/intel/iavf/iavf_client.c | 578 ------------------ drivers/net/ethernet/intel/iavf/iavf_client.h | 169 ----- drivers/net/ethernet/intel/iavf/iavf_main.c | 82 --- .../net/ethernet/intel/iavf/iavf_virtchnl.c | 14 - 6 files changed, 1 insertion(+), 871 deletions(-) delete mode 100644 drivers/net/ethernet/intel/iavf/iavf_client.c delete mode 100644 drivers/net/ethernet/intel/iavf/iavf_client.h diff --git a/drivers/net/ethernet/intel/iavf/Makefile b/drivers/net/ethernet/intel/iavf/Makefile index 9c3e45c54d01..2d154a4e2fd7 100644 --- a/drivers/net/ethernet/intel/iavf/Makefile +++ b/drivers/net/ethernet/intel/iavf/Makefile @@ -13,4 +13,4 @@ obj-$(CONFIG_IAVF) += iavf.o iavf-objs := iavf_main.o iavf_ethtool.o iavf_virtchnl.o iavf_fdir.o \ iavf_adv_rss.o \ - iavf_txrx.o iavf_common.o iavf_adminq.o iavf_client.o + iavf_txrx.o iavf_common.o iavf_adminq.o diff --git a/drivers/net/ethernet/intel/iavf/iavf.h b/drivers/net/ethernet/intel/iavf/iavf.h index f026d0670338..e7ab89dc883a 100644 --- a/drivers/net/ethernet/intel/iavf/iavf.h +++ b/drivers/net/ethernet/intel/iavf/iavf.h @@ -63,7 +63,6 @@ struct iavf_vsi { DECLARE_BITMAP(state, __IAVF_VSI_STATE_SIZE__); int base_vector; u16 qs_handle; - void *priv; /* client driver data reference. */ }; /* How many Rx Buffers do we bundle into one write to the hardware ? */ @@ -256,7 +255,6 @@ struct iavf_adapter { struct work_struct reset_task; struct work_struct adminq_task; struct work_struct finish_config; - struct delayed_work client_task; wait_queue_head_t down_waitqueue; wait_queue_head_t reset_waitqueue; wait_queue_head_t vc_waitqueue; @@ -265,7 +263,6 @@ struct iavf_adapter { int num_vlan_filters; struct list_head mac_filter_list; struct mutex crit_lock; - struct mutex client_lock; /* Lock to protect accesses to MAC and VLAN lists */ spinlock_t mac_vlan_list_lock; char misc_vector_name[IFNAMSIZ + 9]; @@ -282,10 +279,6 @@ struct iavf_adapter { u64 hw_csum_rx_error; u32 rx_desc_count; int num_msix_vectors; - int num_rdma_msix; - int rdma_base_vector; - u32 client_pending; - struct iavf_client_instance *cinst; struct msix_entry *msix_entries; u32 flags; @@ -294,10 +287,6 @@ struct iavf_adapter { #define IAVF_FLAG_RESET_PENDING BIT(4) #define IAVF_FLAG_RESET_NEEDED BIT(5) #define IAVF_FLAG_WB_ON_ITR_CAPABLE BIT(6) -#define IAVF_FLAG_SERVICE_CLIENT_REQUESTED BIT(9) -#define IAVF_FLAG_CLIENT_NEEDS_OPEN BIT(10) -#define IAVF_FLAG_CLIENT_NEEDS_CLOSE BIT(11) -#define IAVF_FLAG_CLIENT_NEEDS_L2_PARAMS BIT(12) #define IAVF_FLAG_LEGACY_RX BIT(15) #define IAVF_FLAG_REINIT_ITR_NEEDED BIT(16) #define IAVF_FLAG_QUEUES_DISABLED BIT(17) @@ -388,11 +377,6 @@ struct iavf_adapter { u32 link_speed_mbps; enum virtchnl_ops current_op; -#define CLIENT_ALLOWED(_a) ((_a)->vf_res ? \ - (_a)->vf_res->vf_cap_flags & \ - VIRTCHNL_VF_OFFLOAD_RDMA : \ - 0) -#define CLIENT_ENABLED(_a) ((_a)->cinst) /* RSS by the PF should be preferred over RSS via other methods. */ #define RSS_PF(_a) ((_a)->vf_res->vf_cap_flags & \ VIRTCHNL_VF_OFFLOAD_RSS_PF) @@ -460,12 +444,6 @@ struct iavf_adapter { /* Ethtool Private Flags */ -/* lan device, used by client interface */ -struct iavf_device { - struct list_head list; - struct iavf_adapter *vf; -}; - /* needed by iavf_ethtool.c */ extern char iavf_driver_name[]; @@ -569,11 +547,6 @@ void iavf_virtchnl_completion(struct iavf_adapter *adapter, int iavf_config_rss(struct iavf_adapter *adapter); int iavf_lan_add_device(struct iavf_adapter *adapter); int iavf_lan_del_device(struct iavf_adapter *adapter); -void iavf_client_subtask(struct iavf_adapter *adapter); -void iavf_notify_client_message(struct iavf_vsi *vsi, u8 *msg, u16 len); -void iavf_notify_client_l2_params(struct iavf_vsi *vsi); -void iavf_notify_client_open(struct iavf_vsi *vsi); -void iavf_notify_client_close(struct iavf_vsi *vsi, bool reset); void iavf_enable_channels(struct iavf_adapter *adapter); void iavf_disable_channels(struct iavf_adapter *adapter); void iavf_add_cloud_filter(struct iavf_adapter *adapter); diff --git a/drivers/net/ethernet/intel/iavf/iavf_client.c b/drivers/net/ethernet/intel/iavf/iavf_client.c deleted file mode 100644 index e6051b6355aa..000000000000 --- a/drivers/net/ethernet/intel/iavf/iavf_client.c +++ /dev/null @@ -1,578 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* Copyright(c) 2013 - 2018 Intel Corporation. */ - -#include -#include - -#include "iavf.h" -#include "iavf_prototype.h" -#include "iavf_client.h" - -static -const char iavf_client_interface_version_str[] = IAVF_CLIENT_VERSION_STR; -static struct iavf_client *vf_registered_client; -static LIST_HEAD(iavf_devices); -static DEFINE_MUTEX(iavf_device_mutex); - -static u32 iavf_client_virtchnl_send(struct iavf_info *ldev, - struct iavf_client *client, - u8 *msg, u16 len); - -static int iavf_client_setup_qvlist(struct iavf_info *ldev, - struct iavf_client *client, - struct iavf_qvlist_info *qvlist_info); - -static struct iavf_ops iavf_lan_ops = { - .virtchnl_send = iavf_client_virtchnl_send, - .setup_qvlist = iavf_client_setup_qvlist, -}; - -/** - * iavf_client_get_params - retrieve relevant client parameters - * @vsi: VSI with parameters - * @params: client param struct - **/ -static -void iavf_client_get_params(struct iavf_vsi *vsi, struct iavf_params *params) -{ - int i; - - memset(params, 0, sizeof(struct iavf_params)); - params->mtu = vsi->netdev->mtu; - params->link_up = vsi->back->link_up; - - for (i = 0; i < IAVF_MAX_USER_PRIORITY; i++) { - params->qos.prio_qos[i].tc = 0; - params->qos.prio_qos[i].qs_handle = vsi->qs_handle; - } -} - -/** - * iavf_notify_client_message - call the client message receive callback - * @vsi: the VSI associated with this client - * @msg: message buffer - * @len: length of message - * - * If there is a client to this VSI, call the client - **/ -void iavf_notify_client_message(struct iavf_vsi *vsi, u8 *msg, u16 len) -{ - struct iavf_client_instance *cinst; - - if (!vsi) - return; - - cinst = vsi->back->cinst; - if (!cinst || !cinst->client || !cinst->client->ops || - !cinst->client->ops->virtchnl_receive) { - dev_dbg(&vsi->back->pdev->dev, - "Cannot locate client instance virtchnl_receive function\n"); - return; - } - cinst->client->ops->virtchnl_receive(&cinst->lan_info, cinst->client, - msg, len); -} - -/** - * iavf_notify_client_l2_params - call the client notify callback - * @vsi: the VSI with l2 param changes - * - * If there is a client to this VSI, call the client - **/ -void iavf_notify_client_l2_params(struct iavf_vsi *vsi) -{ - struct iavf_client_instance *cinst; - struct iavf_params params; - - if (!vsi) - return; - - cinst = vsi->back->cinst; - - if (!cinst || !cinst->client || !cinst->client->ops || - !cinst->client->ops->l2_param_change) { - dev_dbg(&vsi->back->pdev->dev, - "Cannot locate client instance l2_param_change function\n"); - return; - } - iavf_client_get_params(vsi, ¶ms); - cinst->lan_info.params = params; - cinst->client->ops->l2_param_change(&cinst->lan_info, cinst->client, - ¶ms); -} - -/** - * iavf_notify_client_open - call the client open callback - * @vsi: the VSI with netdev opened - * - * If there is a client to this netdev, call the client with open - **/ -void iavf_notify_client_open(struct iavf_vsi *vsi) -{ - struct iavf_adapter *adapter = vsi->back; - struct iavf_client_instance *cinst = adapter->cinst; - int ret; - - if (!cinst || !cinst->client || !cinst->client->ops || - !cinst->client->ops->open) { - dev_dbg(&vsi->back->pdev->dev, - "Cannot locate client instance open function\n"); - return; - } - if (!(test_bit(__IAVF_CLIENT_INSTANCE_OPENED, &cinst->state))) { - ret = cinst->client->ops->open(&cinst->lan_info, cinst->client); - if (!ret) - set_bit(__IAVF_CLIENT_INSTANCE_OPENED, &cinst->state); - } -} - -/** - * iavf_client_release_qvlist - send a message to the PF to release rdma qv map - * @ldev: pointer to L2 context. - * - * Return 0 on success or < 0 on error - **/ -static int iavf_client_release_qvlist(struct iavf_info *ldev) -{ - struct iavf_adapter *adapter = ldev->vf; - enum iavf_status err; - - if (adapter->aq_required) - return -EAGAIN; - - err = iavf_aq_send_msg_to_pf(&adapter->hw, - VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP, - IAVF_SUCCESS, NULL, 0, NULL); - - if (err) - dev_err(&adapter->pdev->dev, - "Unable to send RDMA vector release message to PF, error %d, aq status %d\n", - err, adapter->hw.aq.asq_last_status); - - return err; -} - -/** - * iavf_notify_client_close - call the client close callback - * @vsi: the VSI with netdev closed - * @reset: true when close called due to reset pending - * - * If there is a client to this netdev, call the client with close - **/ -void iavf_notify_client_close(struct iavf_vsi *vsi, bool reset) -{ - struct iavf_adapter *adapter = vsi->back; - struct iavf_client_instance *cinst = adapter->cinst; - - if (!cinst || !cinst->client || !cinst->client->ops || - !cinst->client->ops->close) { - dev_dbg(&vsi->back->pdev->dev, - "Cannot locate client instance close function\n"); - return; - } - cinst->client->ops->close(&cinst->lan_info, cinst->client, reset); - iavf_client_release_qvlist(&cinst->lan_info); - clear_bit(__IAVF_CLIENT_INSTANCE_OPENED, &cinst->state); -} - -/** - * iavf_client_add_instance - add a client instance to the instance list - * @adapter: pointer to the board struct - * - * Returns cinst ptr on success, NULL on failure - **/ -static struct iavf_client_instance * -iavf_client_add_instance(struct iavf_adapter *adapter) -{ - struct iavf_client_instance *cinst = NULL; - struct iavf_vsi *vsi = &adapter->vsi; - struct netdev_hw_addr *mac = NULL; - struct iavf_params params; - - if (!vf_registered_client) - goto out; - - if (adapter->cinst) { - cinst = adapter->cinst; - goto out; - } - - cinst = kzalloc(sizeof(*cinst), GFP_KERNEL); - if (!cinst) - goto out; - - cinst->lan_info.vf = (void *)adapter; - cinst->lan_info.netdev = vsi->netdev; - cinst->lan_info.pcidev = adapter->pdev; - cinst->lan_info.fid = 0; - cinst->lan_info.ftype = IAVF_CLIENT_FTYPE_VF; - cinst->lan_info.hw_addr = adapter->hw.hw_addr; - cinst->lan_info.ops = &iavf_lan_ops; - cinst->lan_info.version.major = IAVF_CLIENT_VERSION_MAJOR; - cinst->lan_info.version.minor = IAVF_CLIENT_VERSION_MINOR; - cinst->lan_info.version.build = IAVF_CLIENT_VERSION_BUILD; - iavf_client_get_params(vsi, ¶ms); - cinst->lan_info.params = params; - set_bit(__IAVF_CLIENT_INSTANCE_NONE, &cinst->state); - - cinst->lan_info.msix_count = adapter->num_rdma_msix; - cinst->lan_info.msix_entries = - &adapter->msix_entries[adapter->rdma_base_vector]; - - mac = list_first_entry(&cinst->lan_info.netdev->dev_addrs.list, - struct netdev_hw_addr, list); - if (mac) - ether_addr_copy(cinst->lan_info.lanmac, mac->addr); - else - dev_err(&adapter->pdev->dev, "MAC address list is empty!\n"); - - cinst->client = vf_registered_client; - adapter->cinst = cinst; -out: - return cinst; -} - -/** - * iavf_client_del_instance - removes a client instance from the list - * @adapter: pointer to the board struct - * - **/ -static -void iavf_client_del_instance(struct iavf_adapter *adapter) -{ - kfree(adapter->cinst); - adapter->cinst = NULL; -} - -/** - * iavf_client_subtask - client maintenance work - * @adapter: board private structure - **/ -void iavf_client_subtask(struct iavf_adapter *adapter) -{ - struct iavf_client *client = vf_registered_client; - struct iavf_client_instance *cinst; - int ret = 0; - - if (adapter->state < __IAVF_DOWN) - return; - - /* first check client is registered */ - if (!client) - return; - - /* Add the client instance to the instance list */ - cinst = iavf_client_add_instance(adapter); - if (!cinst) - return; - - dev_info(&adapter->pdev->dev, "Added instance of Client %s\n", - client->name); - - if (!test_bit(__IAVF_CLIENT_INSTANCE_OPENED, &cinst->state)) { - /* Send an Open request to the client */ - - if (client->ops && client->ops->open) - ret = client->ops->open(&cinst->lan_info, client); - if (!ret) - set_bit(__IAVF_CLIENT_INSTANCE_OPENED, - &cinst->state); - else - /* remove client instance */ - iavf_client_del_instance(adapter); - } -} - -/** - * iavf_lan_add_device - add a lan device struct to the list of lan devices - * @adapter: pointer to the board struct - * - * Returns 0 on success or none 0 on error - **/ -int iavf_lan_add_device(struct iavf_adapter *adapter) -{ - struct iavf_device *ldev; - int ret = 0; - - mutex_lock(&iavf_device_mutex); - list_for_each_entry(ldev, &iavf_devices, list) { - if (ldev->vf == adapter) { - ret = -EEXIST; - goto out; - } - } - ldev = kzalloc(sizeof(*ldev), GFP_KERNEL); - if (!ldev) { - ret = -ENOMEM; - goto out; - } - ldev->vf = adapter; - INIT_LIST_HEAD(&ldev->list); - list_add(&ldev->list, &iavf_devices); - dev_info(&adapter->pdev->dev, "Added LAN device bus=0x%02x dev=0x%02x func=0x%02x\n", - adapter->hw.bus.bus_id, adapter->hw.bus.device, - adapter->hw.bus.func); - - /* Since in some cases register may have happened before a device gets - * added, we can schedule a subtask to go initiate the clients. - */ - adapter->flags |= IAVF_FLAG_SERVICE_CLIENT_REQUESTED; - -out: - mutex_unlock(&iavf_device_mutex); - return ret; -} - -/** - * iavf_lan_del_device - removes a lan device from the device list - * @adapter: pointer to the board struct - * - * Returns 0 on success or non-0 on error - **/ -int iavf_lan_del_device(struct iavf_adapter *adapter) -{ - struct iavf_device *ldev, *tmp; - int ret = -ENODEV; - - mutex_lock(&iavf_device_mutex); - list_for_each_entry_safe(ldev, tmp, &iavf_devices, list) { - if (ldev->vf == adapter) { - dev_info(&adapter->pdev->dev, - "Deleted LAN device bus=0x%02x dev=0x%02x func=0x%02x\n", - adapter->hw.bus.bus_id, adapter->hw.bus.device, - adapter->hw.bus.func); - list_del(&ldev->list); - kfree(ldev); - ret = 0; - break; - } - } - - mutex_unlock(&iavf_device_mutex); - return ret; -} - -/** - * iavf_client_release - release client specific resources - * @client: pointer to the registered client - * - **/ -static void iavf_client_release(struct iavf_client *client) -{ - struct iavf_client_instance *cinst; - struct iavf_device *ldev; - struct iavf_adapter *adapter; - - mutex_lock(&iavf_device_mutex); - list_for_each_entry(ldev, &iavf_devices, list) { - adapter = ldev->vf; - cinst = adapter->cinst; - if (!cinst) - continue; - if (test_bit(__IAVF_CLIENT_INSTANCE_OPENED, &cinst->state)) { - if (client->ops && client->ops->close) - client->ops->close(&cinst->lan_info, client, - false); - iavf_client_release_qvlist(&cinst->lan_info); - clear_bit(__IAVF_CLIENT_INSTANCE_OPENED, &cinst->state); - - dev_warn(&adapter->pdev->dev, - "Client %s instance closed\n", client->name); - } - /* delete the client instance */ - iavf_client_del_instance(adapter); - dev_info(&adapter->pdev->dev, "Deleted client instance of Client %s\n", - client->name); - } - mutex_unlock(&iavf_device_mutex); -} - -/** - * iavf_client_prepare - prepare client specific resources - * @client: pointer to the registered client - * - **/ -static void iavf_client_prepare(struct iavf_client *client) -{ - struct iavf_device *ldev; - struct iavf_adapter *adapter; - - mutex_lock(&iavf_device_mutex); - list_for_each_entry(ldev, &iavf_devices, list) { - adapter = ldev->vf; - /* Signal the watchdog to service the client */ - adapter->flags |= IAVF_FLAG_SERVICE_CLIENT_REQUESTED; - } - mutex_unlock(&iavf_device_mutex); -} - -/** - * iavf_client_virtchnl_send - send a message to the PF instance - * @ldev: pointer to L2 context. - * @client: Client pointer. - * @msg: pointer to message buffer - * @len: message length - * - * Return 0 on success or < 0 on error - **/ -static u32 iavf_client_virtchnl_send(struct iavf_info *ldev, - struct iavf_client *client, - u8 *msg, u16 len) -{ - struct iavf_adapter *adapter = ldev->vf; - enum iavf_status err; - - if (adapter->aq_required) - return -EAGAIN; - - err = iavf_aq_send_msg_to_pf(&adapter->hw, VIRTCHNL_OP_RDMA, - IAVF_SUCCESS, msg, len, NULL); - if (err) - dev_err(&adapter->pdev->dev, "Unable to send RDMA message to PF, error %d, aq status %d\n", - err, adapter->hw.aq.asq_last_status); - - return err; -} - -/** - * iavf_client_setup_qvlist - send a message to the PF to setup rdma qv map - * @ldev: pointer to L2 context. - * @client: Client pointer. - * @qvlist_info: queue and vector list - * - * Return 0 on success or < 0 on error - **/ -static int iavf_client_setup_qvlist(struct iavf_info *ldev, - struct iavf_client *client, - struct iavf_qvlist_info *qvlist_info) -{ - struct virtchnl_rdma_qvlist_info *v_qvlist_info; - struct iavf_adapter *adapter = ldev->vf; - struct iavf_qv_info *qv_info; - enum iavf_status err; - u32 v_idx, i; - size_t msg_size; - - if (adapter->aq_required) - return -EAGAIN; - - /* A quick check on whether the vectors belong to the client */ - for (i = 0; i < qvlist_info->num_vectors; i++) { - qv_info = &qvlist_info->qv_info[i]; - if (!qv_info) - continue; - v_idx = qv_info->v_idx; - if ((v_idx >= - (adapter->rdma_base_vector + adapter->num_rdma_msix)) || - (v_idx < adapter->rdma_base_vector)) - return -EINVAL; - } - - v_qvlist_info = (struct virtchnl_rdma_qvlist_info *)qvlist_info; - msg_size = virtchnl_struct_size(v_qvlist_info, qv_info, - v_qvlist_info->num_vectors); - - adapter->client_pending |= BIT(VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP); - err = iavf_aq_send_msg_to_pf(&adapter->hw, - VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP, IAVF_SUCCESS, - (u8 *)v_qvlist_info, msg_size, NULL); - - if (err) { - dev_err(&adapter->pdev->dev, - "Unable to send RDMA vector config message to PF, error %d, aq status %d\n", - err, adapter->hw.aq.asq_last_status); - goto out; - } - - err = -EBUSY; - for (i = 0; i < 5; i++) { - msleep(100); - if (!(adapter->client_pending & - BIT(VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP))) { - err = 0; - break; - } - } -out: - return err; -} - -/** - * iavf_register_client - Register a iavf client driver with the L2 driver - * @client: pointer to the iavf_client struct - * - * Returns 0 on success or non-0 on error - **/ -int iavf_register_client(struct iavf_client *client) -{ - int ret = 0; - - if (!client) { - ret = -EIO; - goto out; - } - - if (strlen(client->name) == 0) { - pr_info("iavf: Failed to register client with no name\n"); - ret = -EIO; - goto out; - } - - if (vf_registered_client) { - pr_info("iavf: Client %s has already been registered!\n", - client->name); - ret = -EEXIST; - goto out; - } - - if ((client->version.major != IAVF_CLIENT_VERSION_MAJOR) || - (client->version.minor != IAVF_CLIENT_VERSION_MINOR)) { - pr_info("iavf: Failed to register client %s due to mismatched client interface version\n", - client->name); - pr_info("Client is using version: %02d.%02d.%02d while LAN driver supports %s\n", - client->version.major, client->version.minor, - client->version.build, - iavf_client_interface_version_str); - ret = -EIO; - goto out; - } - - vf_registered_client = client; - - iavf_client_prepare(client); - - pr_info("iavf: Registered client %s with return code %d\n", - client->name, ret); -out: - return ret; -} -EXPORT_SYMBOL(iavf_register_client); - -/** - * iavf_unregister_client - Unregister a iavf client driver with the L2 driver - * @client: pointer to the iavf_client struct - * - * Returns 0 on success or non-0 on error - **/ -int iavf_unregister_client(struct iavf_client *client) -{ - int ret = 0; - - /* When a unregister request comes through we would have to send - * a close for each of the client instances that were opened. - * client_release function is called to handle this. - */ - iavf_client_release(client); - - if (vf_registered_client != client) { - pr_info("iavf: Client %s has not been registered\n", - client->name); - ret = -ENODEV; - goto out; - } - vf_registered_client = NULL; - pr_info("iavf: Unregistered client %s\n", client->name); -out: - return ret; -} -EXPORT_SYMBOL(iavf_unregister_client); diff --git a/drivers/net/ethernet/intel/iavf/iavf_client.h b/drivers/net/ethernet/intel/iavf/iavf_client.h deleted file mode 100644 index 500269bc0f5b..000000000000 --- a/drivers/net/ethernet/intel/iavf/iavf_client.h +++ /dev/null @@ -1,169 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* Copyright(c) 2013 - 2018 Intel Corporation. */ - -#ifndef _IAVF_CLIENT_H_ -#define _IAVF_CLIENT_H_ - -#define IAVF_CLIENT_STR_LENGTH 10 - -/* Client interface version should be updated anytime there is a change in the - * existing APIs or data structures. - */ -#define IAVF_CLIENT_VERSION_MAJOR 0 -#define IAVF_CLIENT_VERSION_MINOR 01 -#define IAVF_CLIENT_VERSION_BUILD 00 -#define IAVF_CLIENT_VERSION_STR \ - __stringify(IAVF_CLIENT_VERSION_MAJOR) "." \ - __stringify(IAVF_CLIENT_VERSION_MINOR) "." \ - __stringify(IAVF_CLIENT_VERSION_BUILD) - -struct iavf_client_version { - u8 major; - u8 minor; - u8 build; - u8 rsvd; -}; - -enum iavf_client_state { - __IAVF_CLIENT_NULL, - __IAVF_CLIENT_REGISTERED -}; - -enum iavf_client_instance_state { - __IAVF_CLIENT_INSTANCE_NONE, - __IAVF_CLIENT_INSTANCE_OPENED, -}; - -struct iavf_ops; -struct iavf_client; - -/* HW does not define a type value for AEQ; only for RX/TX and CEQ. - * In order for us to keep the interface simple, SW will define a - * unique type value for AEQ. - */ -#define IAVF_QUEUE_TYPE_PE_AEQ 0x80 -#define IAVF_QUEUE_INVALID_IDX 0xFFFF - -struct iavf_qv_info { - u32 v_idx; /* msix_vector */ - u16 ceq_idx; - u16 aeq_idx; - u8 itr_idx; -}; - -struct iavf_qvlist_info { - u32 num_vectors; - struct iavf_qv_info qv_info[]; -}; - -#define IAVF_CLIENT_MSIX_ALL 0xFFFFFFFF - -/* set of LAN parameters useful for clients managed by LAN */ - -/* Struct to hold per priority info */ -struct iavf_prio_qos_params { - u16 qs_handle; /* qs handle for prio */ - u8 tc; /* TC mapped to prio */ - u8 reserved; -}; - -#define IAVF_CLIENT_MAX_USER_PRIORITY 8 -/* Struct to hold Client QoS */ -struct iavf_qos_params { - struct iavf_prio_qos_params prio_qos[IAVF_CLIENT_MAX_USER_PRIORITY]; -}; - -struct iavf_params { - struct iavf_qos_params qos; - u16 mtu; - u16 link_up; /* boolean */ -}; - -/* Structure to hold LAN device info for a client device */ -struct iavf_info { - struct iavf_client_version version; - u8 lanmac[6]; - struct net_device *netdev; - struct pci_dev *pcidev; - u8 __iomem *hw_addr; - u8 fid; /* function id, PF id or VF id */ -#define IAVF_CLIENT_FTYPE_PF 0 -#define IAVF_CLIENT_FTYPE_VF 1 - u8 ftype; /* function type, PF or VF */ - void *vf; /* cast to iavf_adapter */ - - /* All L2 params that could change during the life span of the device - * and needs to be communicated to the client when they change - */ - struct iavf_params params; - struct iavf_ops *ops; - - u16 msix_count; /* number of msix vectors*/ - /* Array down below will be dynamically allocated based on msix_count */ - struct msix_entry *msix_entries; - u16 itr_index; /* Which ITR index the PE driver is suppose to use */ -}; - -struct iavf_ops { - /* setup_q_vector_list enables queues with a particular vector */ - int (*setup_qvlist)(struct iavf_info *ldev, struct iavf_client *client, - struct iavf_qvlist_info *qv_info); - - u32 (*virtchnl_send)(struct iavf_info *ldev, struct iavf_client *client, - u8 *msg, u16 len); - - /* If the PE Engine is unresponsive, RDMA driver can request a reset.*/ - void (*request_reset)(struct iavf_info *ldev, - struct iavf_client *client); -}; - -struct iavf_client_ops { - /* Should be called from register_client() or whenever the driver is - * ready to create a specific client instance. - */ - int (*open)(struct iavf_info *ldev, struct iavf_client *client); - - /* Should be closed when netdev is unavailable or when unregister - * call comes in. If the close happens due to a reset, set the reset - * bit to true. - */ - void (*close)(struct iavf_info *ldev, struct iavf_client *client, - bool reset); - - /* called when some l2 managed parameters changes - mss */ - void (*l2_param_change)(struct iavf_info *ldev, - struct iavf_client *client, - struct iavf_params *params); - - /* called when a message is received from the PF */ - int (*virtchnl_receive)(struct iavf_info *ldev, - struct iavf_client *client, - u8 *msg, u16 len); -}; - -/* Client device */ -struct iavf_client_instance { - struct list_head list; - struct iavf_info lan_info; - struct iavf_client *client; - unsigned long state; -}; - -struct iavf_client { - struct list_head list; /* list of registered clients */ - char name[IAVF_CLIENT_STR_LENGTH]; - struct iavf_client_version version; - unsigned long state; /* client state */ - atomic_t ref_cnt; /* Count of all the client devices of this kind */ - u32 flags; -#define IAVF_CLIENT_FLAGS_LAUNCH_ON_PROBE BIT(0) -#define IAVF_TX_FLAGS_NOTIFY_OTHER_EVENTS BIT(2) - u8 type; -#define IAVF_CLIENT_RDMA 0 - struct iavf_client_ops *ops; /* client ops provided by the client */ -}; - -/* used by clients */ -int iavf_register_client(struct iavf_client *client); -int iavf_unregister_client(struct iavf_client *client); -#endif /* _IAVF_CLIENT_H_ */ diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c index 49a764ca5e36..6e27b7938b8a 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_main.c +++ b/drivers/net/ethernet/intel/iavf/iavf_main.c @@ -3,7 +3,6 @@ #include "iavf.h" #include "iavf_prototype.h" -#include "iavf_client.h" /* All iavf tracepoints are defined by the include below, which must * be included exactly once across the whole kernel with * CREATE_TRACE_POINTS defined @@ -1286,8 +1285,6 @@ static void iavf_up_complete(struct iavf_adapter *adapter) iavf_napi_enable_all(adapter); adapter->aq_required |= IAVF_FLAG_AQ_ENABLE_QUEUES; - if (CLIENT_ENABLED(adapter)) - adapter->flags |= IAVF_FLAG_CLIENT_NEEDS_OPEN; mod_delayed_work(adapter->wq, &adapter->watchdog_task, 0); } @@ -2706,12 +2703,6 @@ static void iavf_init_config_adapter(struct iavf_adapter *adapter) adapter->link_up = false; netif_tx_stop_all_queues(netdev); - if (CLIENT_ALLOWED(adapter)) { - err = iavf_lan_add_device(adapter); - if (err) - dev_info(&pdev->dev, "Failed to add VF to client API service list: %d\n", - err); - } dev_info(&pdev->dev, "MAC address: %pM\n", adapter->hw.mac.addr); if (netdev->features & NETIF_F_GRO) dev_info(&pdev->dev, "GRO is enabled\n"); @@ -2908,7 +2899,6 @@ static void iavf_watchdog_task(struct work_struct *work) return; } - schedule_delayed_work(&adapter->client_task, msecs_to_jiffies(5)); mutex_unlock(&adapter->crit_lock); restart_watchdog: if (adapter->state >= __IAVF_DOWN) @@ -3019,15 +3009,6 @@ static void iavf_reset_task(struct work_struct *work) return; } - mutex_lock(&adapter->client_lock); - if (CLIENT_ENABLED(adapter)) { - adapter->flags &= ~(IAVF_FLAG_CLIENT_NEEDS_OPEN | - IAVF_FLAG_CLIENT_NEEDS_CLOSE | - IAVF_FLAG_CLIENT_NEEDS_L2_PARAMS | - IAVF_FLAG_SERVICE_CLIENT_REQUESTED); - cancel_delayed_work_sync(&adapter->client_task); - iavf_notify_client_close(&adapter->vsi, true); - } iavf_misc_irq_disable(adapter); if (adapter->flags & IAVF_FLAG_RESET_NEEDED) { adapter->flags &= ~IAVF_FLAG_RESET_NEEDED; @@ -3071,7 +3052,6 @@ static void iavf_reset_task(struct work_struct *work) dev_err(&adapter->pdev->dev, "Reset never finished (%x)\n", reg_val); iavf_disable_vf(adapter); - mutex_unlock(&adapter->client_lock); mutex_unlock(&adapter->crit_lock); return; /* Do not attempt to reinit. It's dead, Jim. */ } @@ -3210,7 +3190,6 @@ static void iavf_reset_task(struct work_struct *work) adapter->flags &= ~IAVF_FLAG_REINIT_ITR_NEEDED; wake_up(&adapter->reset_waitqueue); - mutex_unlock(&adapter->client_lock); mutex_unlock(&adapter->crit_lock); return; @@ -3221,7 +3200,6 @@ static void iavf_reset_task(struct work_struct *work) } iavf_disable_vf(adapter); - mutex_unlock(&adapter->client_lock); mutex_unlock(&adapter->crit_lock); dev_err(&adapter->pdev->dev, "failed to allocate resources during reinit\n"); } @@ -3320,48 +3298,6 @@ static void iavf_adminq_task(struct work_struct *work) iavf_misc_irq_enable(adapter); } -/** - * iavf_client_task - worker thread to perform client work - * @work: pointer to work_struct containing our data - * - * This task handles client interactions. Because client calls can be - * reentrant, we can't handle them in the watchdog. - **/ -static void iavf_client_task(struct work_struct *work) -{ - struct iavf_adapter *adapter = - container_of(work, struct iavf_adapter, client_task.work); - - /* If we can't get the client bit, just give up. We'll be rescheduled - * later. - */ - - if (!mutex_trylock(&adapter->client_lock)) - return; - - if (adapter->flags & IAVF_FLAG_SERVICE_CLIENT_REQUESTED) { - iavf_client_subtask(adapter); - adapter->flags &= ~IAVF_FLAG_SERVICE_CLIENT_REQUESTED; - goto out; - } - if (adapter->flags & IAVF_FLAG_CLIENT_NEEDS_L2_PARAMS) { - iavf_notify_client_l2_params(&adapter->vsi); - adapter->flags &= ~IAVF_FLAG_CLIENT_NEEDS_L2_PARAMS; - goto out; - } - if (adapter->flags & IAVF_FLAG_CLIENT_NEEDS_CLOSE) { - iavf_notify_client_close(&adapter->vsi, false); - adapter->flags &= ~IAVF_FLAG_CLIENT_NEEDS_CLOSE; - goto out; - } - if (adapter->flags & IAVF_FLAG_CLIENT_NEEDS_OPEN) { - iavf_notify_client_open(&adapter->vsi); - adapter->flags &= ~IAVF_FLAG_CLIENT_NEEDS_OPEN; - } -out: - mutex_unlock(&adapter->client_lock); -} - /** * iavf_free_all_tx_resources - Free Tx Resources for All Queues * @adapter: board private structure @@ -4294,8 +4230,6 @@ static int iavf_close(struct net_device *netdev) } set_bit(__IAVF_VSI_DOWN, adapter->vsi.state); - if (CLIENT_ENABLED(adapter)) - adapter->flags |= IAVF_FLAG_CLIENT_NEEDS_CLOSE; /* We cannot send IAVF_FLAG_AQ_GET_OFFLOAD_VLAN_V2_CAPS before * IAVF_FLAG_AQ_DISABLE_QUEUES because in such case there is rtnl * deadlock with adminq_task() until iavf_close timeouts. We must send @@ -4364,10 +4298,6 @@ static int iavf_change_mtu(struct net_device *netdev, int new_mtu) netdev_dbg(netdev, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); netdev->mtu = new_mtu; - if (CLIENT_ENABLED(adapter)) { - iavf_notify_client_l2_params(&adapter->vsi); - adapter->flags |= IAVF_FLAG_SERVICE_CLIENT_REQUESTED; - } if (netif_running(netdev)) { iavf_schedule_reset(adapter, IAVF_FLAG_RESET_NEEDED); @@ -5011,7 +4941,6 @@ static int iavf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) * and destroy them only once in remove */ mutex_init(&adapter->crit_lock); - mutex_init(&adapter->client_lock); mutex_init(&hw->aq.asq_mutex); mutex_init(&hw->aq.arq_mutex); @@ -5031,7 +4960,6 @@ static int iavf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) INIT_WORK(&adapter->adminq_task, iavf_adminq_task); INIT_WORK(&adapter->finish_config, iavf_finish_config); INIT_DELAYED_WORK(&adapter->watchdog_task, iavf_watchdog_task); - INIT_DELAYED_WORK(&adapter->client_task, iavf_client_task); queue_delayed_work(adapter->wq, &adapter->watchdog_task, msecs_to_jiffies(5 * (pdev->devfn & 0x07))); @@ -5142,7 +5070,6 @@ static void iavf_remove(struct pci_dev *pdev) struct iavf_mac_filter *f, *ftmp; struct net_device *netdev; struct iavf_hw *hw; - int err; netdev = adapter->netdev; hw = &adapter->hw; @@ -5176,13 +5103,6 @@ static void iavf_remove(struct pci_dev *pdev) if (netdev->reg_state == NETREG_REGISTERED) unregister_netdev(netdev); - if (CLIENT_ALLOWED(adapter)) { - err = iavf_lan_del_device(adapter); - if (err) - dev_warn(&pdev->dev, "Failed to delete client device: %d\n", - err); - } - mutex_lock(&adapter->crit_lock); dev_info(&adapter->pdev->dev, "Removing device\n"); iavf_change_state(adapter, __IAVF_REMOVE); @@ -5200,7 +5120,6 @@ static void iavf_remove(struct pci_dev *pdev) cancel_work_sync(&adapter->reset_task); cancel_delayed_work_sync(&adapter->watchdog_task); cancel_work_sync(&adapter->adminq_task); - cancel_delayed_work_sync(&adapter->client_task); adapter->aq_required = 0; adapter->flags &= ~IAVF_FLAG_REINIT_ITR_NEEDED; @@ -5218,7 +5137,6 @@ static void iavf_remove(struct pci_dev *pdev) /* destroy the locks only once, here */ mutex_destroy(&hw->aq.arq_mutex); mutex_destroy(&hw->aq.asq_mutex); - mutex_destroy(&adapter->client_lock); mutex_unlock(&adapter->crit_lock); mutex_destroy(&adapter->crit_lock); diff --git a/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c b/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c index 82b84a93bcc8..64c4443dbef9 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c +++ b/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c @@ -3,7 +3,6 @@ #include "iavf.h" #include "iavf_prototype.h" -#include "iavf_client.h" /** * iavf_send_pf_msg @@ -2309,19 +2308,6 @@ void iavf_virtchnl_completion(struct iavf_adapter *adapter, if (v_opcode != adapter->current_op) return; break; - case VIRTCHNL_OP_RDMA: - /* Gobble zero-length replies from the PF. They indicate that - * a previous message was received OK, and the client doesn't - * care about that. - */ - if (msglen && CLIENT_ENABLED(adapter)) - iavf_notify_client_message(&adapter->vsi, msg, msglen); - break; - - case VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP: - adapter->client_pending &= - ~(BIT(VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP)); - break; case VIRTCHNL_OP_GET_RSS_HENA_CAPS: { struct virtchnl_rss_hena *vrh = (struct virtchnl_rss_hena *)msg;