leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

nfp: introduce very minimal nfp_app

Browse Source 
Introduce a concept of an application.  For now it's just grouping
pointers and serving as a layer of indirection.  It will help us
weaken the dependency on nfp_net in ethtool code.  Later series
will flesh out support for different apps in the driver.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2017-05-22 10:59:26 -07:00 committed by David S. Miller
parent 9140b30d31
commit 7ac9ebd567
7 changed files with 152 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/ethernet/netronome/nfp/Makefile
View File

@ -14,6 +14,7 @@ nfp-objs := \
nfpcore/nfp_resource.o \
nfpcore/nfp_rtsym.o \
nfpcore/nfp_target.o \
nfp_app.o \
nfp_main.o \
nfp_net_common.o \
nfp_net_ethtool.o \

57
drivers/net/ethernet/netronome/nfp/nfp_app.c Normal file
View File

@ -0,0 +1,57 @@
/*
* Copyright (C) 2017 Netronome Systems, Inc.
*
* This software is dual licensed under the GNU General License Version 2,
* June 1991 as shown in the file COPYING in the top-level directory of this
* source tree or the BSD 2-Clause License provided below. You have the
* option to license this software under the complete terms of either license.
*
* The BSD 2-Clause License:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/slab.h>
#include "nfp_app.h"
#include "nfp_main.h"
struct nfp_app *nfp_app_alloc(struct nfp_pf *pf)
{
struct nfp_app *app;
app = kzalloc(sizeof(*app), GFP_KERNEL);
if (!app)
return ERR_PTR(-ENOMEM);
app->pf = pf;
app->cpp = pf->cpp;
app->pdev = pf->pdev;
return app;
}
void nfp_app_free(struct nfp_app *app)
{
kfree(app);
}

56
drivers/net/ethernet/netronome/nfp/nfp_app.h Normal file
View File

@ -0,0 +1,56 @@
/*
* Copyright (C) 2017 Netronome Systems, Inc.
*
* This software is dual licensed under the GNU General License Version 2,
* June 1991 as shown in the file COPYING in the top-level directory of this
* source tree or the BSD 2-Clause License provided below. You have the
* option to license this software under the complete terms of either license.
*
* The BSD 2-Clause License:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _NFP_APP_H
#define _NFP_APP_H 1
struct pci_dev;
struct nfp_cpp;
struct nfp_pf;
/**
* struct nfp_app - NFP application container
* @pdev: backpointer to PCI device
* @pf: backpointer to NFP PF structure
* @cpp: pointer to the CPP handle
*/
struct nfp_app {
struct pci_dev *pdev;
struct nfp_pf *pf;
struct nfp_cpp *cpp;
};
struct nfp_app *nfp_app_alloc(struct nfp_pf *pf);
void nfp_app_free(struct nfp_app *app);
#endif

3
drivers/net/ethernet/netronome/nfp/nfp_main.h
View File

@ -57,6 +57,7 @@ struct nfp_eth_table;
* struct nfp_pf - NFP PF-specific device structure
* @pdev: Backpointer to PCI device
* @cpp: Pointer to the CPP handle
* @app: Pointer to the APP handle
* @data_vnic_bar: Pointer to the CPP area for the data vNICs' BARs
* @tx_area: Pointer to the CPP area for the TX queues
* @rx_area: Pointer to the CPP area for the FL/RX queues
@ -77,6 +78,8 @@ struct nfp_pf {
struct nfp_cpp *cpp;
struct nfp_app *app;
struct nfp_cpp_area *data_vnic_bar;
struct nfp_cpp_area *tx_area;
struct nfp_cpp_area *rx_area;

4
drivers/net/ethernet/netronome/nfp/nfp_net.h
View File

@ -557,7 +557,7 @@ struct nfp_net_dp {
* @ethtool_dump_flag: Ethtool dump flag
* @vnic_list: Entry on device vNIC list
* @pdev: Backpointer to PCI device
* @cpp: CPP device handle if available
* @app: APP handle if available
* @eth_port: Translated ETH Table port entry
*/
struct nfp_net {
@ -628,7 +628,7 @@ struct nfp_net {
struct list_head vnic_list;
struct pci_dev *pdev;
struct nfp_cpp *cpp;
struct nfp_app *app;
struct nfp_eth_table_port *eth_port;
};

19
drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
View File

@ -50,6 +50,7 @@
#include "nfpcore/nfp.h"
#include "nfpcore/nfp_nsp.h"
#include "nfp_app.h"
#include "nfp_net_ctrl.h"
#include "nfp_net.h"
@ -134,14 +135,14 @@ static const struct _nfp_net_et_stats nfp_net_et_stats[] = {
#define NN_ET_STATS_LEN (NN_ET_GLOBAL_STATS_LEN + NN_ET_RVEC_GATHER_STATS + \
NN_ET_RVEC_STATS_LEN + NN_ET_QUEUE_STATS_LEN)
static void nfp_net_get_nspinfo(struct nfp_net *nn, char *version)
static void nfp_net_get_nspinfo(struct nfp_app *app, char *version)
{
struct nfp_nsp *nsp;
if (!nn->cpp)
if (!app)
return;
nsp = nfp_nsp_open(nn->cpp);
nsp = nfp_nsp_open(app->cpp);
if (IS_ERR(nsp))
return;
@ -162,7 +163,7 @@ static void nfp_net_get_drvinfo(struct net_device *netdev,
sizeof(drvinfo->driver));
strlcpy(drvinfo->version, nfp_driver_version, sizeof(drvinfo->version));
nfp_net_get_nspinfo(nn, nsp_version);
nfp_net_get_nspinfo(nn->app, nsp_version);
snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
"%d.%d.%d.%d %s",
nn->fw_ver.resv, nn->fw_ver.class,
@ -258,7 +259,7 @@ nfp_net_set_link_ksettings(struct net_device *netdev,
return -EBUSY;
}
nsp = nfp_eth_config_start(nn->cpp, nn->eth_port->index);
nsp = nfp_eth_config_start(nn->app->cpp, nn->eth_port->index);
if (IS_ERR(nsp))
return PTR_ERR(nsp);
@ -706,13 +707,13 @@ nfp_dump_nsp_diag(struct nfp_net *nn, struct ethtool_dump *dump, void *buffer)
struct nfp_resource *res;
int ret;
if (!nn->cpp)
if (!nn->app)
return -EOPNOTSUPP;
dump->version = 1;
dump->flag = NFP_DUMP_NSP_DIAG;
res = nfp_resource_acquire(nn->cpp, NFP_RESOURCE_NSP_DIAG);
res = nfp_resource_acquire(nn->app->cpp, NFP_RESOURCE_NSP_DIAG);
if (IS_ERR(res))
return PTR_ERR(res);
@ -722,7 +723,7 @@ nfp_dump_nsp_diag(struct nfp_net *nn, struct ethtool_dump *dump, void *buffer)
goto exit_release;
}
ret = nfp_cpp_read(nn->cpp, nfp_resource_cpp_id(res),
ret = nfp_cpp_read(nn->app->cpp, nfp_resource_cpp_id(res),
nfp_resource_address(res),
buffer, dump->len);
if (ret != dump->len)
@ -743,7 +744,7 @@ static int nfp_net_set_dump(struct net_device *netdev, struct ethtool_dump *val)
{
struct nfp_net *nn = netdev_priv(netdev);
if (!nn->cpp)
if (!nn->app)
return -EOPNOTSUPP;
if (val->flag != NFP_DUMP_NSP_DIAG)

26
drivers/net/ethernet/netronome/nfp/nfp_net_main.c
View File

@ -54,7 +54,7 @@
#include "nfpcore/nfp_nffw.h"
#include "nfpcore/nfp_nsp.h"
#include "nfpcore/nfp6000_pcie.h"
#include "nfp_app.h"
#include "nfp_net_ctrl.h"
#include "nfp_net.h"
#include "nfp_main.h"
@ -302,7 +302,7 @@ nfp_net_pf_alloc_vnic(struct nfp_pf *pf, void __iomem *ctrl_bar,
if (IS_ERR(nn))
return nn;
nn->cpp = pf->cpp;
nn->app = pf->app;
nn->fw_ver = *fw_ver;
nn->dp.ctrl_bar = ctrl_bar;
nn->tx_bar = tx_bar;
@ -463,6 +463,18 @@ err_nn_free:
return err;
}
static int nfp_net_pf_app_init(struct nfp_pf *pf)
{
pf->app = nfp_app_alloc(pf);
return PTR_ERR_OR_ZERO(pf->app);
}
static void nfp_net_pf_app_clean(struct nfp_pf *pf)
{
nfp_app_free(pf->app);
}
static void nfp_net_pci_remove_finish(struct nfp_pf *pf)
{
nfp_net_debugfs_dir_clean(&pf->ddir);
@ -470,6 +482,8 @@ static void nfp_net_pci_remove_finish(struct nfp_pf *pf)
nfp_net_irqs_disable(pf->pdev);
kfree(pf->irq_entries);
nfp_net_pf_app_clean(pf);
nfp_cpp_area_release_free(pf->rx_area);
nfp_cpp_area_release_free(pf->tx_area);
nfp_cpp_area_release_free(pf->data_vnic_bar);
@ -543,7 +557,7 @@ int nfp_net_refresh_eth_port(struct nfp_net *nn)
struct nfp_eth_table_port *eth_port;
struct nfp_eth_table *eth_table;
eth_table = nfp_eth_read_ports(nn->cpp);
eth_table = nfp_eth_read_ports(nn->app->cpp);
if (!eth_table) {
nn_err(nn, "Error refreshing port state table!\n");
return -EIO;
@ -659,6 +673,10 @@ int nfp_net_pci_probe(struct nfp_pf *pf)
goto err_unmap_tx;
}
err = nfp_net_pf_app_init(pf);
if (err)
goto err_unmap_rx;
pf->ddir = nfp_net_debugfs_device_add(pf->pdev);
err = nfp_net_pf_spawn_vnics(pf, ctrl_bar, tx_bar, rx_bar,
@ -672,6 +690,8 @@ int nfp_net_pci_probe(struct nfp_pf *pf)
err_clean_ddir:
nfp_net_debugfs_dir_clean(&pf->ddir);
nfp_net_pf_app_clean(pf);
err_unmap_rx:
nfp_cpp_area_release_free(pf->rx_area);
err_unmap_tx:
nfp_cpp_area_release_free(pf->tx_area);