| /******************************************************************************* |
| |
| Intel 10 Gigabit PCI Express Linux driver |
| Copyright(c) 1999 - 2010 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. |
| |
| You should have received a copy of the GNU General Public License along with |
| this program; if not, write to the Free Software Foundation, Inc., |
| 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. |
| |
| The full GNU General Public License is included in this distribution in |
| the file called "COPYING". |
| |
| Contact Information: |
| Linux NICS <linux.nics@intel.com> |
| e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
| Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| |
| *******************************************************************************/ |
| |
| #include "ixgbe.h" |
| #include <linux/dcbnl.h> |
| #include "ixgbe_dcb_82598.h" |
| #include "ixgbe_dcb_82599.h" |
| |
| /* Callbacks for DCB netlink in the kernel */ |
| #define BIT_DCB_MODE 0x01 |
| #define BIT_PFC 0x02 |
| #define BIT_PG_RX 0x04 |
| #define BIT_PG_TX 0x08 |
| #define BIT_APP_UPCHG 0x10 |
| #define BIT_RESETLINK 0x40 |
| #define BIT_LINKSPEED 0x80 |
| |
| /* Responses for the DCB_C_SET_ALL command */ |
| #define DCB_HW_CHG_RST 0 /* DCB configuration changed with reset */ |
| #define DCB_NO_HW_CHG 1 /* DCB configuration did not change */ |
| #define DCB_HW_CHG 2 /* DCB configuration changed, no reset */ |
| |
| int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg, |
| struct ixgbe_dcb_config *dst_dcb_cfg, int tc_max) |
| { |
| struct tc_configuration *src_tc_cfg = NULL; |
| struct tc_configuration *dst_tc_cfg = NULL; |
| int i; |
| |
| if (!src_dcb_cfg || !dst_dcb_cfg) |
| return -EINVAL; |
| |
| for (i = DCB_PG_ATTR_TC_0; i < tc_max + DCB_PG_ATTR_TC_0; i++) { |
| src_tc_cfg = &src_dcb_cfg->tc_config[i - DCB_PG_ATTR_TC_0]; |
| dst_tc_cfg = &dst_dcb_cfg->tc_config[i - DCB_PG_ATTR_TC_0]; |
| |
| dst_tc_cfg->path[DCB_TX_CONFIG].prio_type = |
| src_tc_cfg->path[DCB_TX_CONFIG].prio_type; |
| |
| dst_tc_cfg->path[DCB_TX_CONFIG].bwg_id = |
| src_tc_cfg->path[DCB_TX_CONFIG].bwg_id; |
| |
| dst_tc_cfg->path[DCB_TX_CONFIG].bwg_percent = |
| src_tc_cfg->path[DCB_TX_CONFIG].bwg_percent; |
| |
| dst_tc_cfg->path[DCB_TX_CONFIG].up_to_tc_bitmap = |
| src_tc_cfg->path[DCB_TX_CONFIG].up_to_tc_bitmap; |
| |
| dst_tc_cfg->path[DCB_RX_CONFIG].prio_type = |
| src_tc_cfg->path[DCB_RX_CONFIG].prio_type; |
| |
| dst_tc_cfg->path[DCB_RX_CONFIG].bwg_id = |
| src_tc_cfg->path[DCB_RX_CONFIG].bwg_id; |
| |
| dst_tc_cfg->path[DCB_RX_CONFIG].bwg_percent = |
| src_tc_cfg->path[DCB_RX_CONFIG].bwg_percent; |
| |
| dst_tc_cfg->path[DCB_RX_CONFIG].up_to_tc_bitmap = |
| src_tc_cfg->path[DCB_RX_CONFIG].up_to_tc_bitmap; |
| } |
| |
| for (i = DCB_PG_ATTR_BW_ID_0; i < DCB_PG_ATTR_BW_ID_MAX; i++) { |
| dst_dcb_cfg->bw_percentage[DCB_TX_CONFIG] |
| [i-DCB_PG_ATTR_BW_ID_0] = src_dcb_cfg->bw_percentage |
| [DCB_TX_CONFIG][i-DCB_PG_ATTR_BW_ID_0]; |
| dst_dcb_cfg->bw_percentage[DCB_RX_CONFIG] |
| [i-DCB_PG_ATTR_BW_ID_0] = src_dcb_cfg->bw_percentage |
| [DCB_RX_CONFIG][i-DCB_PG_ATTR_BW_ID_0]; |
| } |
| |
| for (i = DCB_PFC_UP_ATTR_0; i < DCB_PFC_UP_ATTR_MAX; i++) { |
| dst_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc = |
| src_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc; |
| } |
| |
| dst_dcb_cfg->pfc_mode_enable = src_dcb_cfg->pfc_mode_enable; |
| |
| return 0; |
| } |
| |
| static u8 ixgbe_dcbnl_get_state(struct net_device *netdev) |
| { |
| struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| |
| return !!(adapter->flags & IXGBE_FLAG_DCB_ENABLED); |
| } |
| |
| static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state) |
| { |
| u8 err = 0; |
| struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| |
| if (state > 0) { |
| /* Turn on DCB */ |
| if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) |
| goto out; |
| |
| if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { |
| e_err(drv, "Enable failed, needs MSI-X\n"); |
| err = 1; |
| goto out; |
| } |
| |
| if (netif_running(netdev)) |
| netdev->netdev_ops->ndo_stop(netdev); |
| ixgbe_clear_interrupt_scheme(adapter); |
| |
| adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED; |
| switch (adapter->hw.mac.type) { |
| case ixgbe_mac_82598EB: |
| adapter->last_lfc_mode = adapter->hw.fc.current_mode; |
| adapter->hw.fc.requested_mode = ixgbe_fc_none; |
| break; |
| case ixgbe_mac_82599EB: |
| case ixgbe_mac_X540: |
| adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; |
| adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE; |
| break; |
| default: |
| break; |
| } |
| |
| adapter->flags |= IXGBE_FLAG_DCB_ENABLED; |
| ixgbe_init_interrupt_scheme(adapter); |
| if (netif_running(netdev)) |
| netdev->netdev_ops->ndo_open(netdev); |
| } else { |
| /* Turn off DCB */ |
| if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
| if (netif_running(netdev)) |
| netdev->netdev_ops->ndo_stop(netdev); |
| ixgbe_clear_interrupt_scheme(adapter); |
| |
| adapter->hw.fc.requested_mode = adapter->last_lfc_mode; |
| adapter->temp_dcb_cfg.pfc_mode_enable = false; |
| adapter->dcb_cfg.pfc_mode_enable = false; |
| adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; |
| adapter->flags |= IXGBE_FLAG_RSS_ENABLED; |
| switch (adapter->hw.mac.type) { |
| case ixgbe_mac_82599EB: |
| case ixgbe_mac_X540: |
| adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; |
| break; |
| default: |
| break; |
| } |
| |
| ixgbe_init_interrupt_scheme(adapter); |
| if (netif_running(netdev)) |
| netdev->netdev_ops->ndo_open(netdev); |
| } |
| } |
| out: |
| return err; |
| } |
| |
| static void ixgbe_dcbnl_get_perm_hw_addr(struct net_device *netdev, |
| u8 *perm_addr) |
| { |
| struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| int i, j; |
| |
| memset(perm_addr, 0xff, MAX_ADDR_LEN); |
| |
| for (i = 0; i < netdev->addr_len; i++) |
| perm_addr[i] = adapter->hw.mac.perm_addr[i]; |
| |
| switch (adapter->hw.mac.type) { |
| case ixgbe_mac_82599EB: |
| case ixgbe_mac_X540: |
| for (j = 0; j < netdev->addr_len; j++, i++) |
| perm_addr[i] = adapter->hw.mac.san_addr[j]; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static void ixgbe_dcbnl_set_pg_tc_cfg_tx(struct net_device *netdev, int tc, |
| u8 prio, u8 bwg_id, u8 bw_pct, |
| u8 up_map) |
| { |
| struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| |
| if (prio != DCB_ATTR_VALUE_UNDEFINED) |
| adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type = prio; |
| if (bwg_id != DCB_ATTR_VALUE_UNDEFINED) |
| adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id = bwg_id; |
| if (bw_pct != DCB_ATTR_VALUE_UNDEFINED) |
| adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent = |
| bw_pct; |
| if (up_map != DCB_ATTR_VALUE_UNDEFINED) |
| adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap = |
| up_map; |
| |
| if ((adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type != |
| adapter->dcb_cfg.tc_config[tc].path[0].prio_type) || |
| (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id != |
| adapter->dcb_cfg.tc_config[tc].path[0].bwg_id) || |
| (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent != |
| adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent) || |
| (adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap != |
| adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap)) |
| adapter->dcb_set_bitmap |= BIT_PG_TX; |
| } |
| |
| static void ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id, |
| u8 bw_pct) |
| { |
| struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| |
| adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] = bw_pct; |
| |
| if (adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] != |
| adapter->dcb_cfg.bw_percentage[0][bwg_id]) |
| adapter->dcb_set_bitmap |= BIT_PG_TX; |
| } |
| |
| static void ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device *netdev, int tc, |
| u8 prio, u8 bwg_id, u8 bw_pct, |
| u8 up_map) |
| { |
| struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| |
| if (prio != DCB_ATTR_VALUE_UNDEFINED) |
| adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type = prio; |
| if (bwg_id != DCB_ATTR_VALUE_UNDEFINED) |
| adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id = bwg_id; |
| if (bw_pct != DCB_ATTR_VALUE_UNDEFINED) |
| adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent = |
| bw_pct; |
| if (up_map != DCB_ATTR_VALUE_UNDEFINED) |
| adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap = |
| up_map; |
| |
| if ((adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type != |
| adapter->dcb_cfg.tc_config[tc].path[1].prio_type) || |
| (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id != |
| adapter->dcb_cfg.tc_config[tc].path[1].bwg_id) || |
| (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent != |
| adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent) || |
| (adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap != |
| adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap)) |
| adapter->dcb_set_bitmap |= BIT_PG_RX; |
| } |
| |
| static void ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id, |
| u8 bw_pct) |
| { |
| struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| |
| adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] = bw_pct; |
| |
| if (adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] != |
| adapter->dcb_cfg.bw_percentage[1][bwg_id]) |
| adapter->dcb_set_bitmap |= BIT_PG_RX; |
| } |
| |
| static void ixgbe_dcbnl_get_pg_tc_cfg_tx(struct net_device *netdev, int tc, |
| u8 *prio, u8 *bwg_id, u8 *bw_pct, |
| u8 *up_map) |
| { |
| struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| |
| *prio = adapter->dcb_cfg.tc_config[tc].path[0].prio_type; |
| *bwg_id = adapter->dcb_cfg.tc_config[tc].path[0].bwg_id; |
| *bw_pct = adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent; |
| *up_map = adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap; |
| } |
| |
| static void ixgbe_dcbnl_get_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id, |
| u8 *bw_pct) |
| { |
| struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| |
| *bw_pct = adapter->dcb_cfg.bw_percentage[0][bwg_id]; |
| } |
| |
| static void ixgbe_dcbnl_get_pg_tc_cfg_rx(struct net_device *netdev, int tc, |
| u8 *prio, u8 *bwg_id, u8 *bw_pct, |
| u8 *up_map) |
| { |
| struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| |
| *prio = adapter->dcb_cfg.tc_config[tc].path[1].prio_type; |
| *bwg_id = adapter->dcb_cfg.tc_config[tc].path[1].bwg_id; |
| *bw_pct = adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent; |
| *up_map = adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap; |
| } |
| |
| static void ixgbe_dcbnl_get_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id, |
| u8 *bw_pct) |
| { |
| struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| |
| *bw_pct = adapter->dcb_cfg.bw_percentage[1][bwg_id]; |
| } |
| |
| static void ixgbe_dcbnl_set_pfc_cfg(struct net_device *netdev, int priority, |
| u8 setting) |
| { |
| struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| |
| adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc = setting; |
| if (adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc != |
| adapter->dcb_cfg.tc_config[priority].dcb_pfc) { |
| adapter->dcb_set_bitmap |= BIT_PFC; |
| adapter->temp_dcb_cfg.pfc_mode_enable = true; |
| } |
| } |
| |
| static void ixgbe_dcbnl_get_pfc_cfg(struct net_device *netdev, int priority, |
| u8 *setting) |
| { |
| struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| |
| *setting = adapter->dcb_cfg.tc_config[priority].dcb_pfc; |
| } |
| |
| static u8 ixgbe_dcbnl_set_all(struct net_device *netdev) |
| { |
| struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| bool do_reset; |
| int ret; |
| |
| if (!adapter->dcb_set_bitmap) |
| return DCB_NO_HW_CHG; |
| |
| ret = ixgbe_copy_dcb_cfg(&adapter->temp_dcb_cfg, &adapter->dcb_cfg, |
| adapter->ring_feature[RING_F_DCB].indices); |
| |
| if (ret) |
| return DCB_NO_HW_CHG; |
| |
| /* |
| * Only take down the adapter if the configuration change |
| * requires a reset. |
| */ |
| do_reset = adapter->dcb_set_bitmap & (BIT_RESETLINK | BIT_APP_UPCHG); |
| |
| if (do_reset) { |
| while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state)) |
| msleep(1); |
| |
| if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) { |
| if (netif_running(netdev)) |
| netdev->netdev_ops->ndo_stop(netdev); |
| ixgbe_clear_interrupt_scheme(adapter); |
| } else { |
| if (netif_running(netdev)) |
| ixgbe_down(adapter); |
| } |
| } |
| |
| if (adapter->dcb_cfg.pfc_mode_enable) { |
| switch (adapter->hw.mac.type) { |
| case ixgbe_mac_82599EB: |
| case ixgbe_mac_X540: |
| if (adapter->hw.fc.current_mode != ixgbe_fc_pfc) |
| adapter->last_lfc_mode = |
| adapter->hw.fc.current_mode; |
| break; |
| default: |
| break; |
| } |
| adapter->hw.fc.requested_mode = ixgbe_fc_pfc; |
| } else { |
| switch (adapter->hw.mac.type) { |
| case ixgbe_mac_82598EB: |
| adapter->hw.fc.requested_mode = ixgbe_fc_none; |
| break; |
| case ixgbe_mac_82599EB: |
| case ixgbe_mac_X540: |
| adapter->hw.fc.requested_mode = adapter->last_lfc_mode; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| if (do_reset) { |
| if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) { |
| ixgbe_init_interrupt_scheme(adapter); |
| if (netif_running(netdev)) |
| netdev->netdev_ops->ndo_open(netdev); |
| } else { |
| if (netif_running(netdev)) |
| ixgbe_up(adapter); |
| } |
| ret = DCB_HW_CHG_RST; |
| } |
| |
| if (adapter->dcb_set_bitmap & BIT_PFC) { |
| u8 pfc_en; |
| ixgbe_dcb_unpack_pfc(&adapter->dcb_cfg, &pfc_en); |
| |
| if (adapter->hw.mac.type == ixgbe_mac_82598EB) |
| ixgbe_dcb_config_pfc_82598(&adapter->hw, pfc_en); |
| else if (adapter->hw.mac.type == ixgbe_mac_82599EB) |
| ixgbe_dcb_config_pfc_82599(&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]; |
| 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); |
| } |
| |
| if (adapter->dcb_cfg.pfc_mode_enable) |
| adapter->hw.fc.current_mode = ixgbe_fc_pfc; |
| |
| if (do_reset) |
| 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); |
| u8 rval = 0; |
| |
| if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
| 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; |
| default: |
| rval = -EINVAL; |
| break; |
| } |
| } else { |
| rval = -EINVAL; |
| } |
| |
| return rval; |
| } |
| |
| 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) |
| { |
| u8 rval = 0; |
| |
| switch (idtype) { |
| case DCB_APP_IDTYPE_ETHTYPE: |
| #ifdef IXGBE_FCOE |
| if (id == ETH_P_FCOE) |
| rval = ixgbe_fcoe_getapp(netdev_priv(netdev)); |
| #endif |
| break; |
| case DCB_APP_IDTYPE_PORTNUM: |
| break; |
| default: |
| break; |
| } |
| return rval; |
| } |
| |
| /** |
| * ixgbe_dcbnl_setapp - set 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 |
| * @up: the 802.1p user priority bitmap |
| * |
| * Returns : 0 on success or 1 on error |
| */ |
| static u8 ixgbe_dcbnl_setapp(struct net_device *netdev, |
| u8 idtype, u16 id, u8 up) |
| { |
| u8 rval = 1; |
| |
| switch (idtype) { |
| case DCB_APP_IDTYPE_ETHTYPE: |
| #ifdef IXGBE_FCOE |
| if (id == ETH_P_FCOE) { |
| u8 old_tc; |
| struct ixgbe_adapter *adapter = netdev_priv(netdev); |
| |
| /* Get current programmed tc */ |
| old_tc = adapter->fcoe.tc; |
| rval = ixgbe_fcoe_setapp(adapter, up); |
| |
| if (rval || |
| !(adapter->flags & IXGBE_FLAG_DCB_ENABLED) || |
| !(adapter->flags & IXGBE_FLAG_FCOE_ENABLED)) |
| break; |
| |
| /* The FCoE application priority may be changed multiple |
| * times in quick sucession with switches that build up |
| * TLVs. To avoid creating uneeded device resets this |
| * checks the actual HW configuration and clears |
| * BIT_APP_UPCHG if a HW configuration change is not |
| * need |
| */ |
| if (old_tc == adapter->fcoe.tc) |
| adapter->dcb_set_bitmap &= ~BIT_APP_UPCHG; |
| else |
| adapter->dcb_set_bitmap |= BIT_APP_UPCHG; |
| } |
| #endif |
| break; |
| case DCB_APP_IDTYPE_PORTNUM: |
| break; |
| default: |
| break; |
| } |
| return rval; |
| } |
| |
| 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]; |
| int max_frame = dev->mtu + ETH_HLEN + ETH_FCS_LEN; |
| int err; |
| /* 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->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)); |
| |
| ixgbe_ieee_credits(ets->tc_tx_bw, refill, max, max_frame); |
| err = ixgbe_dcb_hw_ets_config(&adapter->hw, refill, max, |
| bwg_id, ets->tc_tsa); |
| 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->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; |
| } |
| |
| 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, |
| .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, |
| .setapp = ixgbe_dcbnl_setapp, |
| }; |
| |