alistair23-linux/drivers/net/ethernet/intel/fm10k/fm10k_dcbnl.c
Jacob Keller 8664109467 fm10k: consistently use Intel(R) for driver names
Update every header file and other locations to consistently use
Intel(R) instead of just Intel. Also update copyright year of files
which we modified.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-20 23:07:34 -07:00

171 lines
4.9 KiB
C

/* Intel(R) Ethernet Switch Host Interface Driver
* Copyright(c) 2013 - 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* Contact Information:
* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*/
#include "fm10k.h"
/**
* fm10k_dcbnl_ieee_getets - get the ETS configuration for the device
* @dev: netdev interface for the device
* @ets: ETS structure to push configuration to
**/
static int fm10k_dcbnl_ieee_getets(struct net_device *dev, struct ieee_ets *ets)
{
int i;
/* we support 8 TCs in all modes */
ets->ets_cap = IEEE_8021QAZ_MAX_TCS;
ets->cbs = 0;
/* we only support strict priority and cannot do traffic shaping */
memset(ets->tc_tx_bw, 0, sizeof(ets->tc_tx_bw));
memset(ets->tc_rx_bw, 0, sizeof(ets->tc_rx_bw));
memset(ets->tc_tsa, IEEE_8021QAZ_TSA_STRICT, sizeof(ets->tc_tsa));
/* populate the prio map based on the netdev */
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
ets->prio_tc[i] = netdev_get_prio_tc_map(dev, i);
return 0;
}
/**
* fm10k_dcbnl_ieee_setets - set the ETS configuration for the device
* @dev: netdev interface for the device
* @ets: ETS structure to pull configuration from
**/
static int fm10k_dcbnl_ieee_setets(struct net_device *dev, struct ieee_ets *ets)
{
u8 num_tc = 0;
int i, err;
/* verify type and determine num_tcs needed */
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
if (ets->tc_tx_bw[i] || ets->tc_rx_bw[i])
return -EINVAL;
if (ets->tc_tsa[i] != IEEE_8021QAZ_TSA_STRICT)
return -EINVAL;
if (ets->prio_tc[i] > num_tc)
num_tc = ets->prio_tc[i];
}
/* if requested TC is greater than 0 then num_tcs is max + 1 */
if (num_tc)
num_tc++;
if (num_tc > IEEE_8021QAZ_MAX_TCS)
return -EINVAL;
/* update TC hardware mapping if necessary */
if (num_tc != netdev_get_num_tc(dev)) {
err = fm10k_setup_tc(dev, num_tc);
if (err)
return err;
}
/* update priority mapping */
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
netdev_set_prio_tc_map(dev, i, ets->prio_tc[i]);
return 0;
}
/**
* fm10k_dcbnl_ieee_getpfc - get the PFC configuration for the device
* @dev: netdev interface for the device
* @pfc: PFC structure to push configuration to
**/
static int fm10k_dcbnl_ieee_getpfc(struct net_device *dev, struct ieee_pfc *pfc)
{
struct fm10k_intfc *interface = netdev_priv(dev);
/* record flow control max count and state of TCs */
pfc->pfc_cap = IEEE_8021QAZ_MAX_TCS;
pfc->pfc_en = interface->pfc_en;
return 0;
}
/**
* fm10k_dcbnl_ieee_setpfc - set the PFC configuration for the device
* @dev: netdev interface for the device
* @pfc: PFC structure to pull configuration from
**/
static int fm10k_dcbnl_ieee_setpfc(struct net_device *dev, struct ieee_pfc *pfc)
{
struct fm10k_intfc *interface = netdev_priv(dev);
/* record PFC configuration to interface */
interface->pfc_en = pfc->pfc_en;
/* if we are running update the drop_en state for all queues */
if (netif_running(dev))
fm10k_update_rx_drop_en(interface);
return 0;
}
/**
* fm10k_dcbnl_ieee_getdcbx - get the DCBX configuration for the device
* @dev: netdev interface for the device
*
* Returns that we support only IEEE DCB for this interface
**/
static u8 fm10k_dcbnl_getdcbx(struct net_device __always_unused *dev)
{
return DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_IEEE;
}
/**
* fm10k_dcbnl_ieee_setdcbx - get the DCBX configuration for the device
* @dev: netdev interface for the device
* @mode: new mode for this device
*
* Returns error on attempt to enable anything but IEEE DCB for this interface
**/
static u8 fm10k_dcbnl_setdcbx(struct net_device __always_unused *dev, u8 mode)
{
return (mode != (DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_IEEE)) ? 1 : 0;
}
static const struct dcbnl_rtnl_ops fm10k_dcbnl_ops = {
.ieee_getets = fm10k_dcbnl_ieee_getets,
.ieee_setets = fm10k_dcbnl_ieee_setets,
.ieee_getpfc = fm10k_dcbnl_ieee_getpfc,
.ieee_setpfc = fm10k_dcbnl_ieee_setpfc,
.getdcbx = fm10k_dcbnl_getdcbx,
.setdcbx = fm10k_dcbnl_setdcbx,
};
/**
* fm10k_dcbnl_set_ops - Configures dcbnl ops pointer for netdev
* @dev: netdev interface for the device
*
* Enables PF for DCB by assigning DCBNL ops pointer.
**/
void fm10k_dcbnl_set_ops(struct net_device *dev)
{
struct fm10k_intfc *interface = netdev_priv(dev);
struct fm10k_hw *hw = &interface->hw;
if (hw->mac.type == fm10k_mac_pf)
dev->dcbnl_ops = &fm10k_dcbnl_ops;
}