449 lines
14 KiB
C
449 lines
14 KiB
C
/*******************************************************************************
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Intel 10 Gigabit PCI Express Linux driver
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Copyright(c) 1999 - 2009 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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/* 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_BCN 0x10
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#define BIT_LINKSPEED 0x80
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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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DPRINTK(DRV, INFO, "Get DCB Admin Mode.\n");
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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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DPRINTK(DRV, INFO, "Set DCB Admin Mode.\n");
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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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DPRINTK(DRV, ERR, "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_reset_interrupt_capability(adapter);
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ixgbe_napi_del_all(adapter);
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INIT_LIST_HEAD(&netdev->napi_list);
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kfree(adapter->tx_ring);
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kfree(adapter->rx_ring);
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adapter->tx_ring = NULL;
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adapter->rx_ring = NULL;
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adapter->hw.fc.requested_mode = ixgbe_fc_pfc;
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adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED;
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adapter->flags |= IXGBE_FLAG_DCB_ENABLED;
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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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adapter->hw.fc.requested_mode = ixgbe_fc_default;
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if (netif_running(netdev))
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netdev->netdev_ops->ndo_stop(netdev);
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ixgbe_reset_interrupt_capability(adapter);
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ixgbe_napi_del_all(adapter);
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INIT_LIST_HEAD(&netdev->napi_list);
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kfree(adapter->tx_ring);
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kfree(adapter->rx_ring);
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adapter->tx_ring = NULL;
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adapter->rx_ring = NULL;
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adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED;
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adapter->flags |= IXGBE_FLAG_RSS_ENABLED;
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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;
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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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}
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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_RX;
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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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int ret;
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adapter->dcb_set_bitmap &= ~BIT_BCN; /* no set for BCN */
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if (!adapter->dcb_set_bitmap)
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return 1;
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while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
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msleep(1);
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if (netif_running(netdev))
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ixgbe_down(adapter);
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ret = ixgbe_copy_dcb_cfg(&adapter->temp_dcb_cfg, &adapter->dcb_cfg,
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adapter->ring_feature[RING_F_DCB].indices);
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if (ret) {
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clear_bit(__IXGBE_RESETTING, &adapter->state);
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return ret;
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}
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if (netif_running(netdev))
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ixgbe_up(adapter);
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adapter->dcb_set_bitmap = 0x00;
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clear_bit(__IXGBE_RESETTING, &adapter->state);
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return ret;
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}
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static u8 ixgbe_dcbnl_getcap(struct net_device *netdev, int capid, u8 *cap)
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{
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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u8 rval = 0;
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if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
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switch (capid) {
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case DCB_CAP_ATTR_PG:
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*cap = true;
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break;
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case DCB_CAP_ATTR_PFC:
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*cap = true;
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break;
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case DCB_CAP_ATTR_UP2TC:
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*cap = false;
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break;
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case DCB_CAP_ATTR_PG_TCS:
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*cap = 0x80;
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break;
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case DCB_CAP_ATTR_PFC_TCS:
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*cap = 0x80;
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break;
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case DCB_CAP_ATTR_GSP:
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*cap = true;
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break;
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case DCB_CAP_ATTR_BCN:
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*cap = false;
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break;
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default:
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rval = -EINVAL;
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break;
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}
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} else {
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rval = -EINVAL;
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}
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return rval;
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}
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static u8 ixgbe_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num)
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{
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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u8 rval = 0;
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if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
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switch (tcid) {
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case DCB_NUMTCS_ATTR_PG:
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*num = MAX_TRAFFIC_CLASS;
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break;
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case DCB_NUMTCS_ATTR_PFC:
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*num = MAX_TRAFFIC_CLASS;
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break;
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default:
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rval = -EINVAL;
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break;
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}
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} else {
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rval = -EINVAL;
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}
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return rval;
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}
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static u8 ixgbe_dcbnl_setnumtcs(struct net_device *netdev, int tcid, u8 num)
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{
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return -EINVAL;
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}
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static u8 ixgbe_dcbnl_getpfcstate(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 void ixgbe_dcbnl_setpfcstate(struct net_device *netdev, u8 state)
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{
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return;
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}
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struct dcbnl_rtnl_ops dcbnl_ops = {
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.getstate = ixgbe_dcbnl_get_state,
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.setstate = ixgbe_dcbnl_set_state,
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.getpermhwaddr = ixgbe_dcbnl_get_perm_hw_addr,
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.setpgtccfgtx = ixgbe_dcbnl_set_pg_tc_cfg_tx,
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.setpgbwgcfgtx = ixgbe_dcbnl_set_pg_bwg_cfg_tx,
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.setpgtccfgrx = ixgbe_dcbnl_set_pg_tc_cfg_rx,
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.setpgbwgcfgrx = ixgbe_dcbnl_set_pg_bwg_cfg_rx,
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.getpgtccfgtx = ixgbe_dcbnl_get_pg_tc_cfg_tx,
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.getpgbwgcfgtx = ixgbe_dcbnl_get_pg_bwg_cfg_tx,
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.getpgtccfgrx = ixgbe_dcbnl_get_pg_tc_cfg_rx,
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.getpgbwgcfgrx = ixgbe_dcbnl_get_pg_bwg_cfg_rx,
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.setpfccfg = ixgbe_dcbnl_set_pfc_cfg,
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.getpfccfg = ixgbe_dcbnl_get_pfc_cfg,
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.setall = ixgbe_dcbnl_set_all,
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.getcap = ixgbe_dcbnl_getcap,
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.getnumtcs = ixgbe_dcbnl_getnumtcs,
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.setnumtcs = ixgbe_dcbnl_setnumtcs,
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.getpfcstate = ixgbe_dcbnl_getpfcstate,
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.setpfcstate = ixgbe_dcbnl_setpfcstate,
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};
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