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iavf: delete the iavf client interface

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The iavf client interface was added in 2017 by commit ed0e894de7
("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 <mschmidt@redhat.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20231027175941.1340255-9-jacob.e.keller@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Michal Schmidt 2023-10-27 10:59:41 -07:00 committed by Jakub Kicinski
parent b5b219a1fa
commit 36d0395b30
6 changed files with 1 additions and 871 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/intel/iavf/Makefile
View File

@ -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

27
drivers/net/ethernet/intel/iavf/iavf.h
View File

@ -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);

578
drivers/net/ethernet/intel/iavf/iavf_client.c
View File

@ -1,578 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright(c) 2013 - 2018 Intel Corporation. */
#include <linux/list.h>
#include <linux/errno.h>
#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, &params);
cinst->lan_info.params = params;
cinst->client->ops->l2_param_change(&cinst->lan_info, cinst->client,
&params);
}
/**
* 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, &params);
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);

169
drivers/net/ethernet/intel/iavf/iavf_client.h
View File

@ -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_ */

82
drivers/net/ethernet/intel/iavf/iavf_main.c
View File

@ -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);
/* Setup the wait queue for indicating transition to down status */
init_waitqueue_head(&adapter->down_waitqueue);
@ -5143,7 +5071,6 @@ 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;
@ -5177,13 +5104,6 @@ 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);
@ -5201,7 +5121,6 @@ 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;
@ -5219,7 +5138,6 @@ 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);

14
drivers/net/ethernet/intel/iavf/iavf_virtchnl.c
View File

@ -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;