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![Don Skidmore](/assets/img/avatar_default.png)
Since msleep might not sleep for the desired amount when less than 20ms use usleep_range. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Stephen Ko <stephen.s.ko@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
785 lines
23 KiB
C
785 lines
23 KiB
C
/*******************************************************************************
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Intel 10 Gigabit PCI Express Linux driver
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Copyright(c) 1999 - 2011 Intel Corporation.
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This program is free software; you can redistribute it and/or modify it
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under the terms and conditions of the GNU General Public License,
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version 2, as published by the Free Software Foundation.
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This program is distributed in the hope it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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The full GNU General Public License is included in this distribution in
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the file called "COPYING".
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Contact Information:
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Linux NICS <linux.nics@intel.com>
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e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
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Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*******************************************************************************/
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#include "ixgbe.h"
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#include <linux/dcbnl.h>
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#include "ixgbe_dcb_82598.h"
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#include "ixgbe_dcb_82599.h"
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/* Callbacks for DCB netlink in the kernel */
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#define BIT_DCB_MODE 0x01
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#define BIT_PFC 0x02
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#define BIT_PG_RX 0x04
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#define BIT_PG_TX 0x08
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#define BIT_APP_UPCHG 0x10
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#define BIT_LINKSPEED 0x80
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/* Responses for the DCB_C_SET_ALL command */
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#define DCB_HW_CHG_RST 0 /* DCB configuration changed with reset */
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#define DCB_NO_HW_CHG 1 /* DCB configuration did not change */
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#define DCB_HW_CHG 2 /* DCB configuration changed, no reset */
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int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg,
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struct ixgbe_dcb_config *dst_dcb_cfg, int tc_max)
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{
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struct tc_configuration *src_tc_cfg = NULL;
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struct tc_configuration *dst_tc_cfg = NULL;
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int i;
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if (!src_dcb_cfg || !dst_dcb_cfg)
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return -EINVAL;
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for (i = DCB_PG_ATTR_TC_0; i < tc_max + DCB_PG_ATTR_TC_0; i++) {
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src_tc_cfg = &src_dcb_cfg->tc_config[i - DCB_PG_ATTR_TC_0];
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dst_tc_cfg = &dst_dcb_cfg->tc_config[i - DCB_PG_ATTR_TC_0];
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dst_tc_cfg->path[DCB_TX_CONFIG].prio_type =
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src_tc_cfg->path[DCB_TX_CONFIG].prio_type;
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dst_tc_cfg->path[DCB_TX_CONFIG].bwg_id =
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src_tc_cfg->path[DCB_TX_CONFIG].bwg_id;
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dst_tc_cfg->path[DCB_TX_CONFIG].bwg_percent =
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src_tc_cfg->path[DCB_TX_CONFIG].bwg_percent;
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dst_tc_cfg->path[DCB_TX_CONFIG].up_to_tc_bitmap =
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src_tc_cfg->path[DCB_TX_CONFIG].up_to_tc_bitmap;
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dst_tc_cfg->path[DCB_RX_CONFIG].prio_type =
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src_tc_cfg->path[DCB_RX_CONFIG].prio_type;
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dst_tc_cfg->path[DCB_RX_CONFIG].bwg_id =
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src_tc_cfg->path[DCB_RX_CONFIG].bwg_id;
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dst_tc_cfg->path[DCB_RX_CONFIG].bwg_percent =
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src_tc_cfg->path[DCB_RX_CONFIG].bwg_percent;
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dst_tc_cfg->path[DCB_RX_CONFIG].up_to_tc_bitmap =
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src_tc_cfg->path[DCB_RX_CONFIG].up_to_tc_bitmap;
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}
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for (i = DCB_PG_ATTR_BW_ID_0; i < DCB_PG_ATTR_BW_ID_MAX; i++) {
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dst_dcb_cfg->bw_percentage[DCB_TX_CONFIG]
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[i-DCB_PG_ATTR_BW_ID_0] = src_dcb_cfg->bw_percentage
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[DCB_TX_CONFIG][i-DCB_PG_ATTR_BW_ID_0];
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dst_dcb_cfg->bw_percentage[DCB_RX_CONFIG]
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[i-DCB_PG_ATTR_BW_ID_0] = src_dcb_cfg->bw_percentage
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[DCB_RX_CONFIG][i-DCB_PG_ATTR_BW_ID_0];
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}
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for (i = DCB_PFC_UP_ATTR_0; i < DCB_PFC_UP_ATTR_MAX; i++) {
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dst_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc =
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src_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc;
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}
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dst_dcb_cfg->pfc_mode_enable = src_dcb_cfg->pfc_mode_enable;
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return 0;
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}
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static u8 ixgbe_dcbnl_get_state(struct net_device *netdev)
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{
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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return !!(adapter->flags & IXGBE_FLAG_DCB_ENABLED);
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}
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static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
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{
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u8 err = 0;
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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if (state > 0) {
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/* Turn on DCB */
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if (adapter->flags & IXGBE_FLAG_DCB_ENABLED)
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goto out;
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if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) {
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e_err(drv, "Enable failed, needs MSI-X\n");
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err = 1;
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goto out;
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}
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if (netif_running(netdev))
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netdev->netdev_ops->ndo_stop(netdev);
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ixgbe_clear_interrupt_scheme(adapter);
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switch (adapter->hw.mac.type) {
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case ixgbe_mac_82598EB:
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adapter->last_lfc_mode = adapter->hw.fc.current_mode;
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adapter->hw.fc.requested_mode = ixgbe_fc_none;
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break;
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case ixgbe_mac_82599EB:
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case ixgbe_mac_X540:
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adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE;
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adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE;
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break;
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default:
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break;
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}
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adapter->flags |= IXGBE_FLAG_DCB_ENABLED;
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if (!netdev_get_num_tc(netdev))
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ixgbe_setup_tc(netdev, MAX_TRAFFIC_CLASS);
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ixgbe_init_interrupt_scheme(adapter);
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if (netif_running(netdev))
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netdev->netdev_ops->ndo_open(netdev);
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} else {
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/* Turn off DCB */
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if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
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if (netif_running(netdev))
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netdev->netdev_ops->ndo_stop(netdev);
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ixgbe_clear_interrupt_scheme(adapter);
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adapter->hw.fc.requested_mode = adapter->last_lfc_mode;
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adapter->temp_dcb_cfg.pfc_mode_enable = false;
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adapter->dcb_cfg.pfc_mode_enable = false;
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adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED;
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switch (adapter->hw.mac.type) {
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case ixgbe_mac_82599EB:
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case ixgbe_mac_X540:
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adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE;
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break;
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default:
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break;
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}
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ixgbe_setup_tc(netdev, 0);
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ixgbe_init_interrupt_scheme(adapter);
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if (netif_running(netdev))
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netdev->netdev_ops->ndo_open(netdev);
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}
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}
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out:
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return err;
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}
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static void ixgbe_dcbnl_get_perm_hw_addr(struct net_device *netdev,
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u8 *perm_addr)
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{
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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int i, j;
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memset(perm_addr, 0xff, MAX_ADDR_LEN);
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for (i = 0; i < netdev->addr_len; i++)
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perm_addr[i] = adapter->hw.mac.perm_addr[i];
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switch (adapter->hw.mac.type) {
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case ixgbe_mac_82599EB:
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case ixgbe_mac_X540:
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for (j = 0; j < netdev->addr_len; j++, i++)
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perm_addr[i] = adapter->hw.mac.san_addr[j];
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break;
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default:
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break;
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}
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}
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static void ixgbe_dcbnl_set_pg_tc_cfg_tx(struct net_device *netdev, int tc,
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u8 prio, u8 bwg_id, u8 bw_pct,
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u8 up_map)
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{
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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if (prio != DCB_ATTR_VALUE_UNDEFINED)
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adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type = prio;
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if (bwg_id != DCB_ATTR_VALUE_UNDEFINED)
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adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id = bwg_id;
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if (bw_pct != DCB_ATTR_VALUE_UNDEFINED)
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adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent =
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bw_pct;
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if (up_map != DCB_ATTR_VALUE_UNDEFINED)
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adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap =
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up_map;
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if ((adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type !=
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adapter->dcb_cfg.tc_config[tc].path[0].prio_type) ||
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(adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id !=
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adapter->dcb_cfg.tc_config[tc].path[0].bwg_id) ||
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(adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent !=
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adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent) ||
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(adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap !=
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adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap))
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adapter->dcb_set_bitmap |= BIT_PG_TX;
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}
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static void ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id,
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u8 bw_pct)
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{
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] = bw_pct;
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if (adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] !=
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adapter->dcb_cfg.bw_percentage[0][bwg_id])
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adapter->dcb_set_bitmap |= BIT_PG_TX;
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}
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static void ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device *netdev, int tc,
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u8 prio, u8 bwg_id, u8 bw_pct,
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u8 up_map)
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{
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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if (prio != DCB_ATTR_VALUE_UNDEFINED)
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adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type = prio;
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if (bwg_id != DCB_ATTR_VALUE_UNDEFINED)
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adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id = bwg_id;
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if (bw_pct != DCB_ATTR_VALUE_UNDEFINED)
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adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent =
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bw_pct;
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if (up_map != DCB_ATTR_VALUE_UNDEFINED)
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adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap =
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up_map;
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if ((adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type !=
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adapter->dcb_cfg.tc_config[tc].path[1].prio_type) ||
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(adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id !=
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adapter->dcb_cfg.tc_config[tc].path[1].bwg_id) ||
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(adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent !=
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adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent) ||
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(adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap !=
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adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap))
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adapter->dcb_set_bitmap |= BIT_PG_RX;
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}
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static void ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id,
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u8 bw_pct)
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{
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] = bw_pct;
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if (adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] !=
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adapter->dcb_cfg.bw_percentage[1][bwg_id])
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adapter->dcb_set_bitmap |= BIT_PG_RX;
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}
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static void ixgbe_dcbnl_get_pg_tc_cfg_tx(struct net_device *netdev, int tc,
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u8 *prio, u8 *bwg_id, u8 *bw_pct,
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u8 *up_map)
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{
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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*prio = adapter->dcb_cfg.tc_config[tc].path[0].prio_type;
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*bwg_id = adapter->dcb_cfg.tc_config[tc].path[0].bwg_id;
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*bw_pct = adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent;
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*up_map = adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap;
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}
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static void ixgbe_dcbnl_get_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id,
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u8 *bw_pct)
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{
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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*bw_pct = adapter->dcb_cfg.bw_percentage[0][bwg_id];
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}
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static void ixgbe_dcbnl_get_pg_tc_cfg_rx(struct net_device *netdev, int tc,
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u8 *prio, u8 *bwg_id, u8 *bw_pct,
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u8 *up_map)
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{
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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*prio = adapter->dcb_cfg.tc_config[tc].path[1].prio_type;
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*bwg_id = adapter->dcb_cfg.tc_config[tc].path[1].bwg_id;
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*bw_pct = adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent;
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*up_map = adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap;
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}
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static void ixgbe_dcbnl_get_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id,
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u8 *bw_pct)
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{
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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*bw_pct = adapter->dcb_cfg.bw_percentage[1][bwg_id];
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}
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static void ixgbe_dcbnl_set_pfc_cfg(struct net_device *netdev, int priority,
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u8 setting)
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{
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc = setting;
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if (adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc !=
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adapter->dcb_cfg.tc_config[priority].dcb_pfc) {
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adapter->dcb_set_bitmap |= BIT_PFC;
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adapter->temp_dcb_cfg.pfc_mode_enable = true;
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}
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}
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static void ixgbe_dcbnl_get_pfc_cfg(struct net_device *netdev, int priority,
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u8 *setting)
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{
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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*setting = adapter->dcb_cfg.tc_config[priority].dcb_pfc;
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}
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static u8 ixgbe_dcbnl_set_all(struct net_device *netdev)
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{
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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struct dcb_app app = {
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.selector = DCB_APP_IDTYPE_ETHTYPE,
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.protocol = ETH_P_FCOE,
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};
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u8 up = dcb_getapp(netdev, &app);
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int ret;
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ret = ixgbe_copy_dcb_cfg(&adapter->temp_dcb_cfg, &adapter->dcb_cfg,
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MAX_TRAFFIC_CLASS);
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if (ret)
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return DCB_NO_HW_CHG;
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/* In IEEE mode app data must be parsed into DCBX format for
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* hardware routines.
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*/
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if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE)
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up = (1 << up);
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#ifdef IXGBE_FCOE
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if (up && (up != (1 << adapter->fcoe.up)))
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adapter->dcb_set_bitmap |= BIT_APP_UPCHG;
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/*
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* Only take down the adapter if an app change occurred. FCoE
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* may shuffle tx rings in this case and this can not be done
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* without a reset currently.
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*/
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if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) {
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while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
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usleep_range(1000, 2000);
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ixgbe_fcoe_setapp(adapter, up);
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if (netif_running(netdev))
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netdev->netdev_ops->ndo_stop(netdev);
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ixgbe_clear_interrupt_scheme(adapter);
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}
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#endif
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if (adapter->dcb_cfg.pfc_mode_enable) {
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switch (adapter->hw.mac.type) {
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case ixgbe_mac_82599EB:
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case ixgbe_mac_X540:
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if (adapter->hw.fc.current_mode != ixgbe_fc_pfc)
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adapter->last_lfc_mode =
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adapter->hw.fc.current_mode;
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break;
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default:
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break;
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}
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adapter->hw.fc.requested_mode = ixgbe_fc_pfc;
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} else {
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switch (adapter->hw.mac.type) {
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case ixgbe_mac_82598EB:
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adapter->hw.fc.requested_mode = ixgbe_fc_none;
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break;
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case ixgbe_mac_82599EB:
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case ixgbe_mac_X540:
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adapter->hw.fc.requested_mode = adapter->last_lfc_mode;
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break;
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default:
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break;
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}
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}
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#ifdef IXGBE_FCOE
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|
if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) {
|
|
ixgbe_init_interrupt_scheme(adapter);
|
|
if (netif_running(netdev))
|
|
netdev->netdev_ops->ndo_open(netdev);
|
|
ret = DCB_HW_CHG_RST;
|
|
}
|
|
#endif
|
|
|
|
if (adapter->dcb_set_bitmap & BIT_PFC) {
|
|
u8 pfc_en;
|
|
ixgbe_dcb_unpack_pfc(&adapter->dcb_cfg, &pfc_en);
|
|
ixgbe_dcb_hw_pfc_config(&adapter->hw, pfc_en);
|
|
ret = DCB_HW_CHG;
|
|
}
|
|
|
|
if (adapter->dcb_set_bitmap & (BIT_PG_TX|BIT_PG_RX)) {
|
|
u16 refill[MAX_TRAFFIC_CLASS], max[MAX_TRAFFIC_CLASS];
|
|
u8 bwg_id[MAX_TRAFFIC_CLASS], prio_type[MAX_TRAFFIC_CLASS];
|
|
/* Priority to TC mapping in CEE case default to 1:1 */
|
|
u8 prio_tc[MAX_TRAFFIC_CLASS] = {0, 1, 2, 3, 4, 5, 6, 7};
|
|
int max_frame = adapter->netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
|
|
|
|
#ifdef CONFIG_FCOE
|
|
if (adapter->netdev->features & NETIF_F_FCOE_MTU)
|
|
max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE);
|
|
#endif
|
|
|
|
ixgbe_dcb_calculate_tc_credits(&adapter->hw, &adapter->dcb_cfg,
|
|
max_frame, DCB_TX_CONFIG);
|
|
ixgbe_dcb_calculate_tc_credits(&adapter->hw, &adapter->dcb_cfg,
|
|
max_frame, DCB_RX_CONFIG);
|
|
|
|
ixgbe_dcb_unpack_refill(&adapter->dcb_cfg,
|
|
DCB_TX_CONFIG, refill);
|
|
ixgbe_dcb_unpack_max(&adapter->dcb_cfg, max);
|
|
ixgbe_dcb_unpack_bwgid(&adapter->dcb_cfg,
|
|
DCB_TX_CONFIG, bwg_id);
|
|
ixgbe_dcb_unpack_prio(&adapter->dcb_cfg,
|
|
DCB_TX_CONFIG, prio_type);
|
|
|
|
ixgbe_dcb_hw_ets_config(&adapter->hw, refill, max,
|
|
bwg_id, prio_type, prio_tc);
|
|
}
|
|
|
|
if (adapter->dcb_cfg.pfc_mode_enable)
|
|
adapter->hw.fc.current_mode = ixgbe_fc_pfc;
|
|
|
|
if (adapter->dcb_set_bitmap & BIT_APP_UPCHG)
|
|
clear_bit(__IXGBE_RESETTING, &adapter->state);
|
|
adapter->dcb_set_bitmap = 0x00;
|
|
return ret;
|
|
}
|
|
|
|
static u8 ixgbe_dcbnl_getcap(struct net_device *netdev, int capid, u8 *cap)
|
|
{
|
|
struct ixgbe_adapter *adapter = netdev_priv(netdev);
|
|
|
|
switch (capid) {
|
|
case DCB_CAP_ATTR_PG:
|
|
*cap = true;
|
|
break;
|
|
case DCB_CAP_ATTR_PFC:
|
|
*cap = true;
|
|
break;
|
|
case DCB_CAP_ATTR_UP2TC:
|
|
*cap = false;
|
|
break;
|
|
case DCB_CAP_ATTR_PG_TCS:
|
|
*cap = 0x80;
|
|
break;
|
|
case DCB_CAP_ATTR_PFC_TCS:
|
|
*cap = 0x80;
|
|
break;
|
|
case DCB_CAP_ATTR_GSP:
|
|
*cap = true;
|
|
break;
|
|
case DCB_CAP_ATTR_BCN:
|
|
*cap = false;
|
|
break;
|
|
case DCB_CAP_ATTR_DCBX:
|
|
*cap = adapter->dcbx_cap;
|
|
break;
|
|
default:
|
|
*cap = false;
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static u8 ixgbe_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num)
|
|
{
|
|
struct ixgbe_adapter *adapter = netdev_priv(netdev);
|
|
u8 rval = 0;
|
|
|
|
if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
|
|
switch (tcid) {
|
|
case DCB_NUMTCS_ATTR_PG:
|
|
*num = MAX_TRAFFIC_CLASS;
|
|
break;
|
|
case DCB_NUMTCS_ATTR_PFC:
|
|
*num = MAX_TRAFFIC_CLASS;
|
|
break;
|
|
default:
|
|
rval = -EINVAL;
|
|
break;
|
|
}
|
|
} else {
|
|
rval = -EINVAL;
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
|
|
static u8 ixgbe_dcbnl_setnumtcs(struct net_device *netdev, int tcid, u8 num)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static u8 ixgbe_dcbnl_getpfcstate(struct net_device *netdev)
|
|
{
|
|
struct ixgbe_adapter *adapter = netdev_priv(netdev);
|
|
|
|
return adapter->dcb_cfg.pfc_mode_enable;
|
|
}
|
|
|
|
static void ixgbe_dcbnl_setpfcstate(struct net_device *netdev, u8 state)
|
|
{
|
|
struct ixgbe_adapter *adapter = netdev_priv(netdev);
|
|
|
|
adapter->temp_dcb_cfg.pfc_mode_enable = state;
|
|
if (adapter->temp_dcb_cfg.pfc_mode_enable !=
|
|
adapter->dcb_cfg.pfc_mode_enable)
|
|
adapter->dcb_set_bitmap |= BIT_PFC;
|
|
}
|
|
|
|
/**
|
|
* ixgbe_dcbnl_getapp - retrieve the DCBX application user priority
|
|
* @netdev : the corresponding netdev
|
|
* @idtype : identifies the id as ether type or TCP/UDP port number
|
|
* @id: id is either ether type or TCP/UDP port number
|
|
*
|
|
* Returns : on success, returns a non-zero 802.1p user priority bitmap
|
|
* otherwise returns 0 as the invalid user priority bitmap to indicate an
|
|
* error.
|
|
*/
|
|
static u8 ixgbe_dcbnl_getapp(struct net_device *netdev, u8 idtype, u16 id)
|
|
{
|
|
struct ixgbe_adapter *adapter = netdev_priv(netdev);
|
|
struct dcb_app app = {
|
|
.selector = idtype,
|
|
.protocol = id,
|
|
};
|
|
|
|
if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE))
|
|
return 0;
|
|
|
|
return dcb_getapp(netdev, &app);
|
|
}
|
|
|
|
static int ixgbe_dcbnl_ieee_getets(struct net_device *dev,
|
|
struct ieee_ets *ets)
|
|
{
|
|
struct ixgbe_adapter *adapter = netdev_priv(dev);
|
|
struct ieee_ets *my_ets = adapter->ixgbe_ieee_ets;
|
|
|
|
/* No IEEE PFC settings available */
|
|
if (!my_ets)
|
|
return -EINVAL;
|
|
|
|
ets->ets_cap = MAX_TRAFFIC_CLASS;
|
|
ets->cbs = my_ets->cbs;
|
|
memcpy(ets->tc_tx_bw, my_ets->tc_tx_bw, sizeof(ets->tc_tx_bw));
|
|
memcpy(ets->tc_rx_bw, my_ets->tc_rx_bw, sizeof(ets->tc_rx_bw));
|
|
memcpy(ets->tc_tsa, my_ets->tc_tsa, sizeof(ets->tc_tsa));
|
|
memcpy(ets->prio_tc, my_ets->prio_tc, sizeof(ets->prio_tc));
|
|
return 0;
|
|
}
|
|
|
|
static int ixgbe_dcbnl_ieee_setets(struct net_device *dev,
|
|
struct ieee_ets *ets)
|
|
{
|
|
struct ixgbe_adapter *adapter = netdev_priv(dev);
|
|
__u16 refill[IEEE_8021QAZ_MAX_TCS], max[IEEE_8021QAZ_MAX_TCS];
|
|
__u8 prio_type[IEEE_8021QAZ_MAX_TCS];
|
|
int max_frame = dev->mtu + ETH_HLEN + ETH_FCS_LEN;
|
|
int i, err;
|
|
__u64 *p = (__u64 *) ets->prio_tc;
|
|
/* naively give each TC a bwg to map onto CEE hardware */
|
|
__u8 bwg_id[IEEE_8021QAZ_MAX_TCS] = {0, 1, 2, 3, 4, 5, 6, 7};
|
|
|
|
if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
|
|
return -EINVAL;
|
|
|
|
if (!adapter->ixgbe_ieee_ets) {
|
|
adapter->ixgbe_ieee_ets = kmalloc(sizeof(struct ieee_ets),
|
|
GFP_KERNEL);
|
|
if (!adapter->ixgbe_ieee_ets)
|
|
return -ENOMEM;
|
|
}
|
|
|
|
memcpy(adapter->ixgbe_ieee_ets, ets, sizeof(*adapter->ixgbe_ieee_ets));
|
|
|
|
/* Map TSA onto CEE prio type */
|
|
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
|
|
switch (ets->tc_tsa[i]) {
|
|
case IEEE_8021QAZ_TSA_STRICT:
|
|
prio_type[i] = 2;
|
|
break;
|
|
case IEEE_8021QAZ_TSA_ETS:
|
|
prio_type[i] = 0;
|
|
break;
|
|
default:
|
|
/* Hardware only supports priority strict or
|
|
* ETS transmission selection algorithms if
|
|
* we receive some other value from dcbnl
|
|
* throw an error
|
|
*/
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
if (*p)
|
|
ixgbe_dcbnl_set_state(dev, 1);
|
|
else
|
|
ixgbe_dcbnl_set_state(dev, 0);
|
|
|
|
ixgbe_ieee_credits(ets->tc_tx_bw, refill, max, max_frame);
|
|
err = ixgbe_dcb_hw_ets_config(&adapter->hw, refill, max,
|
|
bwg_id, prio_type, ets->prio_tc);
|
|
return err;
|
|
}
|
|
|
|
static int ixgbe_dcbnl_ieee_getpfc(struct net_device *dev,
|
|
struct ieee_pfc *pfc)
|
|
{
|
|
struct ixgbe_adapter *adapter = netdev_priv(dev);
|
|
struct ieee_pfc *my_pfc = adapter->ixgbe_ieee_pfc;
|
|
int i;
|
|
|
|
/* No IEEE PFC settings available */
|
|
if (!my_pfc)
|
|
return -EINVAL;
|
|
|
|
pfc->pfc_cap = MAX_TRAFFIC_CLASS;
|
|
pfc->pfc_en = my_pfc->pfc_en;
|
|
pfc->mbc = my_pfc->mbc;
|
|
pfc->delay = my_pfc->delay;
|
|
|
|
for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
|
|
pfc->requests[i] = adapter->stats.pxoffrxc[i];
|
|
pfc->indications[i] = adapter->stats.pxofftxc[i];
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ixgbe_dcbnl_ieee_setpfc(struct net_device *dev,
|
|
struct ieee_pfc *pfc)
|
|
{
|
|
struct ixgbe_adapter *adapter = netdev_priv(dev);
|
|
int err;
|
|
|
|
if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
|
|
return -EINVAL;
|
|
|
|
if (!adapter->ixgbe_ieee_pfc) {
|
|
adapter->ixgbe_ieee_pfc = kmalloc(sizeof(struct ieee_pfc),
|
|
GFP_KERNEL);
|
|
if (!adapter->ixgbe_ieee_pfc)
|
|
return -ENOMEM;
|
|
}
|
|
|
|
memcpy(adapter->ixgbe_ieee_pfc, pfc, sizeof(*adapter->ixgbe_ieee_pfc));
|
|
err = ixgbe_dcb_hw_pfc_config(&adapter->hw, pfc->pfc_en);
|
|
return err;
|
|
}
|
|
|
|
static int ixgbe_dcbnl_ieee_setapp(struct net_device *dev,
|
|
struct dcb_app *app)
|
|
{
|
|
struct ixgbe_adapter *adapter = netdev_priv(dev);
|
|
|
|
if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
|
|
return -EINVAL;
|
|
|
|
dcb_setapp(dev, app);
|
|
|
|
#ifdef IXGBE_FCOE
|
|
if (app->selector == 1 && app->protocol == ETH_P_FCOE &&
|
|
adapter->fcoe.tc == app->priority)
|
|
ixgbe_dcbnl_set_all(dev);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
static u8 ixgbe_dcbnl_getdcbx(struct net_device *dev)
|
|
{
|
|
struct ixgbe_adapter *adapter = netdev_priv(dev);
|
|
return adapter->dcbx_cap;
|
|
}
|
|
|
|
static u8 ixgbe_dcbnl_setdcbx(struct net_device *dev, u8 mode)
|
|
{
|
|
struct ixgbe_adapter *adapter = netdev_priv(dev);
|
|
struct ieee_ets ets = {0};
|
|
struct ieee_pfc pfc = {0};
|
|
|
|
/* no support for LLD_MANAGED modes or CEE+IEEE */
|
|
if ((mode & DCB_CAP_DCBX_LLD_MANAGED) ||
|
|
((mode & DCB_CAP_DCBX_VER_IEEE) && (mode & DCB_CAP_DCBX_VER_CEE)) ||
|
|
!(mode & DCB_CAP_DCBX_HOST))
|
|
return 1;
|
|
|
|
if (mode == adapter->dcbx_cap)
|
|
return 0;
|
|
|
|
adapter->dcbx_cap = mode;
|
|
|
|
/* ETS and PFC defaults */
|
|
ets.ets_cap = 8;
|
|
pfc.pfc_cap = 8;
|
|
|
|
if (mode & DCB_CAP_DCBX_VER_IEEE) {
|
|
ixgbe_dcbnl_ieee_setets(dev, &ets);
|
|
ixgbe_dcbnl_ieee_setpfc(dev, &pfc);
|
|
} else if (mode & DCB_CAP_DCBX_VER_CEE) {
|
|
adapter->dcb_set_bitmap |= (BIT_PFC & BIT_PG_TX & BIT_PG_RX);
|
|
ixgbe_dcbnl_set_all(dev);
|
|
} else {
|
|
/* Drop into single TC mode strict priority as this
|
|
* indicates CEE and IEEE versions are disabled
|
|
*/
|
|
ixgbe_dcbnl_ieee_setets(dev, &ets);
|
|
ixgbe_dcbnl_ieee_setpfc(dev, &pfc);
|
|
ixgbe_dcbnl_set_state(dev, 0);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
const struct dcbnl_rtnl_ops dcbnl_ops = {
|
|
.ieee_getets = ixgbe_dcbnl_ieee_getets,
|
|
.ieee_setets = ixgbe_dcbnl_ieee_setets,
|
|
.ieee_getpfc = ixgbe_dcbnl_ieee_getpfc,
|
|
.ieee_setpfc = ixgbe_dcbnl_ieee_setpfc,
|
|
.ieee_setapp = ixgbe_dcbnl_ieee_setapp,
|
|
.getstate = ixgbe_dcbnl_get_state,
|
|
.setstate = ixgbe_dcbnl_set_state,
|
|
.getpermhwaddr = ixgbe_dcbnl_get_perm_hw_addr,
|
|
.setpgtccfgtx = ixgbe_dcbnl_set_pg_tc_cfg_tx,
|
|
.setpgbwgcfgtx = ixgbe_dcbnl_set_pg_bwg_cfg_tx,
|
|
.setpgtccfgrx = ixgbe_dcbnl_set_pg_tc_cfg_rx,
|
|
.setpgbwgcfgrx = ixgbe_dcbnl_set_pg_bwg_cfg_rx,
|
|
.getpgtccfgtx = ixgbe_dcbnl_get_pg_tc_cfg_tx,
|
|
.getpgbwgcfgtx = ixgbe_dcbnl_get_pg_bwg_cfg_tx,
|
|
.getpgtccfgrx = ixgbe_dcbnl_get_pg_tc_cfg_rx,
|
|
.getpgbwgcfgrx = ixgbe_dcbnl_get_pg_bwg_cfg_rx,
|
|
.setpfccfg = ixgbe_dcbnl_set_pfc_cfg,
|
|
.getpfccfg = ixgbe_dcbnl_get_pfc_cfg,
|
|
.setall = ixgbe_dcbnl_set_all,
|
|
.getcap = ixgbe_dcbnl_getcap,
|
|
.getnumtcs = ixgbe_dcbnl_getnumtcs,
|
|
.setnumtcs = ixgbe_dcbnl_setnumtcs,
|
|
.getpfcstate = ixgbe_dcbnl_getpfcstate,
|
|
.setpfcstate = ixgbe_dcbnl_setpfcstate,
|
|
.getapp = ixgbe_dcbnl_getapp,
|
|
.getdcbx = ixgbe_dcbnl_getdcbx,
|
|
.setdcbx = ixgbe_dcbnl_setdcbx,
|
|
};
|