diff options
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_dcb.c | 17 | ||||
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_dcb.h | 54 | ||||
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_dcb_82599.c | 472 | ||||
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_dcb_82599.h | 127 | ||||
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_dcb_nl.c | 193 |
5 files changed, 644 insertions, 219 deletions
diff --git a/drivers/net/ixgbe/ixgbe_dcb.c b/drivers/net/ixgbe/ixgbe_dcb.c index 2a60c89..a156228 100644 --- a/drivers/net/ixgbe/ixgbe_dcb.c +++ b/drivers/net/ixgbe/ixgbe_dcb.c @@ -31,6 +31,7 @@ #include "ixgbe_type.h" #include "ixgbe_dcb.h" #include "ixgbe_dcb_82598.h" +#include "ixgbe_dcb_82599.h" /** * ixgbe_dcb_config - Struct containing DCB settings. @@ -215,6 +216,8 @@ s32 ixgbe_dcb_get_tc_stats(struct ixgbe_hw *hw, struct ixgbe_hw_stats *stats, s32 ret = 0; if (hw->mac.type == ixgbe_mac_82598EB) ret = ixgbe_dcb_get_tc_stats_82598(hw, stats, tc_count); + else if (hw->mac.type == ixgbe_mac_82599EB) + ret = ixgbe_dcb_get_tc_stats_82599(hw, stats, tc_count); return ret; } @@ -232,6 +235,8 @@ s32 ixgbe_dcb_get_pfc_stats(struct ixgbe_hw *hw, struct ixgbe_hw_stats *stats, s32 ret = 0; if (hw->mac.type == ixgbe_mac_82598EB) ret = ixgbe_dcb_get_pfc_stats_82598(hw, stats, tc_count); + else if (hw->mac.type == ixgbe_mac_82599EB) + ret = ixgbe_dcb_get_pfc_stats_82599(hw, stats, tc_count); return ret; } @@ -248,6 +253,8 @@ s32 ixgbe_dcb_config_rx_arbiter(struct ixgbe_hw *hw, s32 ret = 0; if (hw->mac.type == ixgbe_mac_82598EB) ret = ixgbe_dcb_config_rx_arbiter_82598(hw, dcb_config); + else if (hw->mac.type == ixgbe_mac_82599EB) + ret = ixgbe_dcb_config_rx_arbiter_82599(hw, dcb_config); return ret; } @@ -264,6 +271,8 @@ s32 ixgbe_dcb_config_tx_desc_arbiter(struct ixgbe_hw *hw, s32 ret = 0; if (hw->mac.type == ixgbe_mac_82598EB) ret = ixgbe_dcb_config_tx_desc_arbiter_82598(hw, dcb_config); + else if (hw->mac.type == ixgbe_mac_82599EB) + ret = ixgbe_dcb_config_tx_desc_arbiter_82599(hw, dcb_config); return ret; } @@ -280,6 +289,8 @@ s32 ixgbe_dcb_config_tx_data_arbiter(struct ixgbe_hw *hw, s32 ret = 0; if (hw->mac.type == ixgbe_mac_82598EB) ret = ixgbe_dcb_config_tx_data_arbiter_82598(hw, dcb_config); + else if (hw->mac.type == ixgbe_mac_82599EB) + ret = ixgbe_dcb_config_tx_data_arbiter_82599(hw, dcb_config); return ret; } @@ -296,6 +307,8 @@ s32 ixgbe_dcb_config_pfc(struct ixgbe_hw *hw, s32 ret = 0; if (hw->mac.type == ixgbe_mac_82598EB) ret = ixgbe_dcb_config_pfc_82598(hw, dcb_config); + else if (hw->mac.type == ixgbe_mac_82599EB) + ret = ixgbe_dcb_config_pfc_82599(hw, dcb_config); return ret; } @@ -311,6 +324,8 @@ s32 ixgbe_dcb_config_tc_stats(struct ixgbe_hw *hw) s32 ret = 0; if (hw->mac.type == ixgbe_mac_82598EB) ret = ixgbe_dcb_config_tc_stats_82598(hw); + else if (hw->mac.type == ixgbe_mac_82599EB) + ret = ixgbe_dcb_config_tc_stats_82599(hw); return ret; } @@ -327,6 +342,8 @@ s32 ixgbe_dcb_hw_config(struct ixgbe_hw *hw, s32 ret = 0; if (hw->mac.type == ixgbe_mac_82598EB) ret = ixgbe_dcb_hw_config_82598(hw, dcb_config); + else if (hw->mac.type == ixgbe_mac_82599EB) + ret = ixgbe_dcb_hw_config_82599(hw, dcb_config); return ret; } diff --git a/drivers/net/ixgbe/ixgbe_dcb.h b/drivers/net/ixgbe/ixgbe_dcb.h index 0da5c6d..64a9fa1 100644 --- a/drivers/net/ixgbe/ixgbe_dcb.h +++ b/drivers/net/ixgbe/ixgbe_dcb.h @@ -75,6 +75,26 @@ enum strict_prio_type { prio_link }; +/* DCB capability definitions */ +#define IXGBE_DCB_PG_SUPPORT 0x00000001 +#define IXGBE_DCB_PFC_SUPPORT 0x00000002 +#define IXGBE_DCB_BCN_SUPPORT 0x00000004 +#define IXGBE_DCB_UP2TC_SUPPORT 0x00000008 +#define IXGBE_DCB_GSP_SUPPORT 0x00000010 + +#define IXGBE_DCB_8_TC_SUPPORT 0x80 + +struct dcb_support { + /* DCB capabilities */ + u32 capabilities; + + /* Each bit represents a number of TCs configurable in the hw. + * If 8 traffic classes can be configured, the value is 0x80. + */ + u8 traffic_classes; + u8 pfc_traffic_classes; +}; + /* Traffic class bandwidth allocation per direction */ struct tc_bw_alloc { u8 bwg_id; /* Bandwidth Group (BWG) ID */ @@ -108,38 +128,18 @@ enum dcb_rx_pba_cfg { pba_80_48 /* PBA[0-3] each use 80KB, PBA[4-7] each use 48KB */ }; -/* - * This structure contains many values encoded as fixed-point - * numbers, meaning that some of bits are dedicated to the - * magnitude and others to the fraction part. In the comments - * this is shown as f=n, where n is the number of fraction bits. - * These fraction bits are always the low-order bits. The size - * of the magnitude is not specified. - */ -struct bcn_config { - u32 rp_admin_mode[MAX_TRAFFIC_CLASS]; /* BCN enabled, per TC */ - u32 bcna_option[2]; /* BCNA Port + MAC Addr */ - u32 rp_w; /* Derivative Weight, f=3 */ - u32 rp_gi; /* Increase Gain, f=12 */ - u32 rp_gd; /* Decrease Gain, f=12 */ - u32 rp_ru; /* Rate Unit */ - u32 rp_alpha; /* Max Decrease Factor, f=12 */ - u32 rp_beta; /* Max Increase Factor, f=12 */ - u32 rp_ri; /* Initial Rate */ - u32 rp_td; /* Drift Interval Timer */ - u32 rp_rd; /* Drift Increase */ - u32 rp_tmax; /* Severe Congestion Backoff Timer Range */ - u32 rp_rmin; /* Severe Congestion Restart Rate */ - u32 rp_wrtt; /* RTT Moving Average Weight */ +struct dcb_num_tcs { + u8 pg_tcs; + u8 pfc_tcs; }; struct ixgbe_dcb_config { - struct bcn_config bcn; - + struct dcb_support support; + struct dcb_num_tcs num_tcs; struct tc_configuration tc_config[MAX_TRAFFIC_CLASS]; u8 bw_percentage[2][MAX_BW_GROUP]; /* One each for Tx/Rx */ - - bool round_robin_enable; + bool pfc_mode_enable; + bool round_robin_enable; enum dcb_rx_pba_cfg rx_pba_cfg; diff --git a/drivers/net/ixgbe/ixgbe_dcb_82599.c b/drivers/net/ixgbe/ixgbe_dcb_82599.c new file mode 100644 index 0000000..1467d56 --- /dev/null +++ b/drivers/net/ixgbe/ixgbe_dcb_82599.c @@ -0,0 +1,472 @@ +/******************************************************************************* + + Intel 10 Gigabit PCI Express Linux driver + Copyright(c) 1999 - 2009 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: + 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 "ixgbe_type.h" +#include "ixgbe_dcb.h" +#include "ixgbe_dcb_82599.h" + +/** + * ixgbe_dcb_get_tc_stats_82599 - Returns status for each traffic class + * @hw: pointer to hardware structure + * @stats: pointer to statistics structure + * @tc_count: Number of elements in bwg_array. + * + * This function returns the status data for each of the Traffic Classes in use. + */ +s32 ixgbe_dcb_get_tc_stats_82599(struct ixgbe_hw *hw, + struct ixgbe_hw_stats *stats, + u8 tc_count) +{ + int tc; + + if (tc_count > MAX_TRAFFIC_CLASS) + return DCB_ERR_PARAM; + /* Statistics pertaining to each traffic class */ + for (tc = 0; tc < tc_count; tc++) { + /* Transmitted Packets */ + stats->qptc[tc] += IXGBE_READ_REG(hw, IXGBE_QPTC(tc)); + /* Transmitted Bytes */ + stats->qbtc[tc] += IXGBE_READ_REG(hw, IXGBE_QBTC(tc)); + /* Received Packets */ + stats->qprc[tc] += IXGBE_READ_REG(hw, IXGBE_QPRC(tc)); + /* Received Bytes */ + stats->qbrc[tc] += IXGBE_READ_REG(hw, IXGBE_QBRC(tc)); + } + + return 0; +} + +/** + * ixgbe_dcb_get_pfc_stats_82599 - Return CBFC status data + * @hw: pointer to hardware structure + * @stats: pointer to statistics structure + * @tc_count: Number of elements in bwg_array. + * + * This function returns the CBFC status data for each of the Traffic Classes. + */ +s32 ixgbe_dcb_get_pfc_stats_82599(struct ixgbe_hw *hw, + struct ixgbe_hw_stats *stats, + u8 tc_count) +{ + int tc; + + if (tc_count > MAX_TRAFFIC_CLASS) + return DCB_ERR_PARAM; + for (tc = 0; tc < tc_count; tc++) { + /* Priority XOFF Transmitted */ + stats->pxofftxc[tc] += IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(tc)); + /* Priority XOFF Received */ + stats->pxoffrxc[tc] += IXGBE_READ_REG(hw, IXGBE_PXOFFRXCNT(tc)); + } + + return 0; +} + +/** + * ixgbe_dcb_config_packet_buffers_82599 - Configure DCB packet buffers + * @hw: pointer to hardware structure + * @dcb_config: pointer to ixgbe_dcb_config structure + * + * Configure packet buffers for DCB mode. + */ +s32 ixgbe_dcb_config_packet_buffers_82599(struct ixgbe_hw *hw, + struct ixgbe_dcb_config *dcb_config) +{ + s32 ret_val = 0; + u32 value = IXGBE_RXPBSIZE_64KB; + u8 i = 0; + + /* Setup Rx packet buffer sizes */ + switch (dcb_config->rx_pba_cfg) { + case pba_80_48: + /* Setup the first four at 80KB */ + value = IXGBE_RXPBSIZE_80KB; + for (; i < 4; i++) + IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), value); + /* Setup the last four at 48KB...don't re-init i */ + value = IXGBE_RXPBSIZE_48KB; + /* Fall Through */ + case pba_equal: + default: + for (; i < IXGBE_MAX_PACKET_BUFFERS; i++) + IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), value); + + /* Setup Tx packet buffer sizes */ + for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++) { + IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), + IXGBE_TXPBSIZE_20KB); + IXGBE_WRITE_REG(hw, IXGBE_TXPBTHRESH(i), + IXGBE_TXPBTHRESH_DCB); + } + break; + } + + return ret_val; +} + +/** + * ixgbe_dcb_config_rx_arbiter_82599 - Config Rx Data arbiter + * @hw: pointer to hardware structure + * @dcb_config: pointer to ixgbe_dcb_config structure + * + * Configure Rx Packet Arbiter and credits for each traffic class. + */ +s32 ixgbe_dcb_config_rx_arbiter_82599(struct ixgbe_hw *hw, + struct ixgbe_dcb_config *dcb_config) +{ + struct tc_bw_alloc *p; + u32 reg = 0; + u32 credit_refill = 0; + u32 credit_max = 0; + u8 i = 0; + + /* Disable the arbiter before changing parameters */ + IXGBE_WRITE_REG(hw, IXGBE_RTRPCS, IXGBE_RTRPCS_ARBDIS); + + /* Map all traffic classes to their UP, 1 to 1 */ + reg = 0; + for (i = 0; i < MAX_TRAFFIC_CLASS; i++) + reg |= (i << (i * IXGBE_RTRUP2TC_UP_SHIFT)); + IXGBE_WRITE_REG(hw, IXGBE_RTRUP2TC, reg); + + /* Configure traffic class credits and priority */ + for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { + p = &dcb_config->tc_config[i].path[DCB_RX_CONFIG]; + + credit_refill = p->data_credits_refill; + credit_max = p->data_credits_max; + reg = credit_refill | (credit_max << IXGBE_RTRPT4C_MCL_SHIFT); + + reg |= (u32)(p->bwg_id) << IXGBE_RTRPT4C_BWG_SHIFT; + + if (p->prio_type == prio_link) + reg |= IXGBE_RTRPT4C_LSP; + + IXGBE_WRITE_REG(hw, IXGBE_RTRPT4C(i), reg); + } + + /* + * Configure Rx packet plane (recycle mode; WSP) and + * enable arbiter + */ + reg = IXGBE_RTRPCS_RRM | IXGBE_RTRPCS_RAC; + IXGBE_WRITE_REG(hw, IXGBE_RTRPCS, reg); + + return 0; +} + +/** + * ixgbe_dcb_config_tx_desc_arbiter_82599 - Config Tx Desc. arbiter + * @hw: pointer to hardware structure + * @dcb_config: pointer to ixgbe_dcb_config structure + * + * Configure Tx Descriptor Arbiter and credits for each traffic class. + */ +s32 ixgbe_dcb_config_tx_desc_arbiter_82599(struct ixgbe_hw *hw, + struct ixgbe_dcb_config *dcb_config) +{ + struct tc_bw_alloc *p; + u32 reg, max_credits; + u8 i; + + /* Disable the arbiter before changing parameters */ + IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, IXGBE_RTTDCS_ARBDIS); + + /* Clear the per-Tx queue credits; we use per-TC instead */ + for (i = 0; i < 128; i++) { + IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, i); + IXGBE_WRITE_REG(hw, IXGBE_RTTDT1C, 0); + } + + /* Configure traffic class credits and priority */ + for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { + p = &dcb_config->tc_config[i].path[DCB_TX_CONFIG]; + max_credits = dcb_config->tc_config[i].desc_credits_max; + reg = max_credits << IXGBE_RTTDT2C_MCL_SHIFT; + reg |= p->data_credits_refill; + reg |= (u32)(p->bwg_id) << IXGBE_RTTDT2C_BWG_SHIFT; + + if (p->prio_type == prio_group) + reg |= IXGBE_RTTDT2C_GSP; + + if (p->prio_type == prio_link) + reg |= IXGBE_RTTDT2C_LSP; + + IXGBE_WRITE_REG(hw, IXGBE_RTTDT2C(i), reg); + } + + /* + * Configure Tx descriptor plane (recycle mode; WSP) and + * enable arbiter + */ + reg = IXGBE_RTTDCS_TDPAC | IXGBE_RTTDCS_TDRM; + IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, reg); + + return 0; +} + +/** + * ixgbe_dcb_config_tx_data_arbiter_82599 - Config Tx Data arbiter + * @hw: pointer to hardware structure + * @dcb_config: pointer to ixgbe_dcb_config structure + * + * Configure Tx Packet Arbiter and credits for each traffic class. + */ +s32 ixgbe_dcb_config_tx_data_arbiter_82599(struct ixgbe_hw *hw, + struct ixgbe_dcb_config *dcb_config) +{ + struct tc_bw_alloc *p; + u32 reg; + u8 i; + + /* Disable the arbiter before changing parameters */ + IXGBE_WRITE_REG(hw, IXGBE_RTTPCS, IXGBE_RTTPCS_ARBDIS); + + /* Map all traffic classes to their UP, 1 to 1 */ + reg = 0; + for (i = 0; i < MAX_TRAFFIC_CLASS; i++) + reg |= (i << (i * IXGBE_RTTUP2TC_UP_SHIFT)); + IXGBE_WRITE_REG(hw, IXGBE_RTTUP2TC, reg); + + /* Configure traffic class credits and priority */ + for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { + p = &dcb_config->tc_config[i].path[DCB_TX_CONFIG]; + reg = p->data_credits_refill; + reg |= (u32)(p->data_credits_max) << IXGBE_RTTPT2C_MCL_SHIFT; + reg |= (u32)(p->bwg_id) << IXGBE_RTTPT2C_BWG_SHIFT; + + if (p->prio_type == prio_group) + reg |= IXGBE_RTTPT2C_GSP; + + if (p->prio_type == prio_link) + reg |= IXGBE_RTTPT2C_LSP; + + IXGBE_WRITE_REG(hw, IXGBE_RTTPT2C(i), reg); + } + + /* + * Configure Tx packet plane (recycle mode; SP; arb delay) and + * enable arbiter + */ + reg = IXGBE_RTTPCS_TPPAC | IXGBE_RTTPCS_TPRM | + (IXGBE_RTTPCS_ARBD_DCB << IXGBE_RTTPCS_ARBD_SHIFT); + IXGBE_WRITE_REG(hw, IXGBE_RTTPCS, reg); + + return 0; +} + +/** + * ixgbe_dcb_config_pfc_82599 - Configure priority flow control + * @hw: pointer to hardware structure + * @dcb_config: pointer to ixgbe_dcb_config structure + * + * Configure Priority Flow Control (PFC) for each traffic class. + */ +s32 ixgbe_dcb_config_pfc_82599(struct ixgbe_hw *hw, + struct ixgbe_dcb_config *dcb_config) +{ + u32 i, reg; + + /* If PFC is disabled globally then fall back to LFC. */ + if (!dcb_config->pfc_mode_enable) { + for (i = 0; i < MAX_TRAFFIC_CLASS; i++) + hw->mac.ops.setup_fc(hw, i); + goto out; + } + + /* PFC is mutually exclusive with link flow control */ + hw->fc.current_mode = ixgbe_fc_none; + + /* Configure PFC Tx thresholds per TC */ + for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { + /* Config and remember Tx */ + if (dcb_config->tc_config[i].dcb_pfc == pfc_enabled_full || + dcb_config->tc_config[i].dcb_pfc == pfc_enabled_tx) { + reg = hw->fc.high_water | IXGBE_FCRTH_FCEN; + IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(i), reg); + reg = hw->fc.low_water | IXGBE_FCRTL_XONE; + IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(i), reg); + } else { + IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(i), 0); + IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(i), 0); + } + } + + /* Configure pause time (2 TCs per register) */ + reg = hw->fc.pause_time | (hw->fc.pause_time << 16); + for (i = 0; i < (MAX_TRAFFIC_CLASS / 2); i++) + IXGBE_WRITE_REG(hw, IXGBE_FCTTV(i), reg); + + /* Configure flow control refresh threshold value */ + IXGBE_WRITE_REG(hw, IXGBE_FCRTV, hw->fc.pause_time / 2); + + /* Enable Transmit PFC */ + reg = IXGBE_FCCFG_TFCE_PRIORITY; + IXGBE_WRITE_REG(hw, IXGBE_FCCFG, reg); + + /* + * Enable Receive PFC + * We will always honor XOFF frames we receive when + * we are in PFC mode. + */ + reg = IXGBE_READ_REG(hw, IXGBE_MFLCN); + reg &= ~IXGBE_MFLCN_RFCE; + reg |= IXGBE_MFLCN_RPFCE; + IXGBE_WRITE_REG(hw, IXGBE_MFLCN, reg); +out: + return 0; +} + +/** + * ixgbe_dcb_config_tc_stats_82599 - Config traffic class statistics + * @hw: pointer to hardware structure + * + * Configure queue statistics registers, all queues belonging to same traffic + * class uses a single set of queue statistics counters. + */ +s32 ixgbe_dcb_config_tc_stats_82599(struct ixgbe_hw *hw) +{ + u32 reg = 0; + u8 i = 0; + + /* + * Receive Queues stats setting + * 32 RQSMR registers, each configuring 4 queues. + * Set all 16 queues of each TC to the same stat + * with TC 'n' going to stat 'n'. + */ + for (i = 0; i < 32; i++) { + reg = 0x01010101 * (i / 4); + IXGBE_WRITE_REG(hw, IXGBE_RQSMR(i), reg); + } + /* + * Transmit Queues stats setting + * 32 TQSM registers, each controlling 4 queues. + * Set all queues of each TC to the same stat + * with TC 'n' going to stat 'n'. + * Tx queues are allocated non-uniformly to TCs: + * 32, 32, 16, 16, 8, 8, 8, 8. + */ + for (i = 0; i < 32; i++) { + if (i < 8) + reg = 0x00000000; + else if (i < 16) + reg = 0x01010101; + else if (i < 20) + reg = 0x02020202; + else if (i < 24) + reg = 0x03030303; + else if (i < 26) + reg = 0x04040404; + else if (i < 28) + reg = 0x05050505; + else if (i < 30) + reg = 0x06060606; + else + reg = 0x07070707; + IXGBE_WRITE_REG(hw, IXGBE_TQSM(i), reg); + } + + return 0; +} + +/** + * ixgbe_dcb_config_82599 - Configure general DCB parameters + * @hw: pointer to hardware structure + * @dcb_config: pointer to ixgbe_dcb_config structure + * + * Configure general DCB parameters. + */ +s32 ixgbe_dcb_config_82599(struct ixgbe_hw *hw) +{ + u32 reg; + u32 q; + + /* Disable the Tx desc arbiter so that MTQC can be changed */ + reg = IXGBE_READ_REG(hw, IXGBE_RTTDCS); + reg |= IXGBE_RTTDCS_ARBDIS; + IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, reg); + + /* Enable DCB for Rx with 8 TCs */ + reg = IXGBE_READ_REG(hw, IXGBE_MRQC); + switch (reg & IXGBE_MRQC_MRQE_MASK) { + case 0: + case IXGBE_MRQC_RT4TCEN: + /* RSS disabled cases */ + reg = (reg & ~IXGBE_MRQC_MRQE_MASK) | IXGBE_MRQC_RT8TCEN; + break; + case IXGBE_MRQC_RSSEN: + case IXGBE_MRQC_RTRSS4TCEN: + /* RSS enabled cases */ + reg = (reg & ~IXGBE_MRQC_MRQE_MASK) | IXGBE_MRQC_RTRSS8TCEN; + break; + default: + /* Unsupported value, assume stale data, overwrite no RSS */ + reg = (reg & ~IXGBE_MRQC_MRQE_MASK) | IXGBE_MRQC_RT8TCEN; + } + IXGBE_WRITE_REG(hw, IXGBE_MRQC, reg); + + /* Enable DCB for Tx with 8 TCs */ + reg = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_8TC_8TQ; + IXGBE_WRITE_REG(hw, IXGBE_MTQC, reg); + + /* Disable drop for all queues */ + for (q = 0; q < 128; q++) + IXGBE_WRITE_REG(hw, IXGBE_QDE, q << IXGBE_QDE_IDX_SHIFT); + + /* Enable the Tx desc arbiter */ + reg = IXGBE_READ_REG(hw, IXGBE_RTTDCS); + reg &= ~IXGBE_RTTDCS_ARBDIS; + IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, reg); + + return 0; +} + +/** + * ixgbe_dcb_hw_config_82599 - Configure and enable DCB + * @hw: pointer to hardware structure + * @dcb_config: pointer to ixgbe_dcb_config structure + * + * Configure dcb settings and enable dcb mode. + */ +s32 ixgbe_dcb_hw_config_82599(struct ixgbe_hw *hw, + struct ixgbe_dcb_config *dcb_config) +{ + u32 pap = 0; + + ixgbe_dcb_config_packet_buffers_82599(hw, dcb_config); + ixgbe_dcb_config_82599(hw); + ixgbe_dcb_config_rx_arbiter_82599(hw, dcb_config); + ixgbe_dcb_config_tx_desc_arbiter_82599(hw, dcb_config); + ixgbe_dcb_config_tx_data_arbiter_82599(hw, dcb_config); + ixgbe_dcb_config_pfc_82599(hw, dcb_config); + ixgbe_dcb_config_tc_stats_82599(hw); + + return 0; +} + diff --git a/drivers/net/ixgbe/ixgbe_dcb_82599.h b/drivers/net/ixgbe/ixgbe_dcb_82599.h new file mode 100644 index 0000000..9e5e282 --- /dev/null +++ b/drivers/net/ixgbe/ixgbe_dcb_82599.h @@ -0,0 +1,127 @@ +/******************************************************************************* + + Intel 10 Gigabit PCI Express Linux driver + Copyright(c) 1999 - 2009 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: + e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +#ifndef _DCB_82599_CONFIG_H_ +#define _DCB_82599_CONFIG_H_ + +/* DCB register definitions */ +#define IXGBE_RTTDCS_TDPAC 0x00000001 /* 0 Round Robin, + * 1 WSP - Weighted Strict Priority + */ +#define IXGBE_RTTDCS_VMPAC 0x00000002 /* 0 Round Robin, + * 1 WRR - Weighted Round Robin + */ +#define IXGBE_RTTDCS_TDRM 0x00000010 /* Transmit Recycle Mode */ +#define IXGBE_RTTDCS_ARBDIS 0x00000040 /* DCB arbiter disable */ +#define IXGBE_RTTDCS_BDPM 0x00400000 /* Bypass Data Pipe - must clear! */ +#define IXGBE_RTTDCS_BPBFSM 0x00800000 /* Bypass PB Free Space - must + * clear! + */ +#define IXGBE_RTTDCS_SPEED_CHG 0x80000000 /* Link speed change */ + +/* Receive UP2TC mapping */ +#define IXGBE_RTRUP2TC_UP_SHIFT 3 +/* Transmit UP2TC mapping */ +#define IXGBE_RTTUP2TC_UP_SHIFT 3 + +#define IXGBE_RTRPT4C_MCL_SHIFT 12 /* Offset to Max Credit Limit setting */ +#define IXGBE_RTRPT4C_BWG_SHIFT 9 /* Offset to BWG index */ +#define IXGBE_RTRPT4C_GSP 0x40000000 /* GSP enable bit */ +#define IXGBE_RTRPT4C_LSP 0x80000000 /* LSP enable bit */ + +#define IXGBE_RDRXCTL_MPBEN 0x00000010 /* DMA config for multiple packet + * buffers enable + */ +#define IXGBE_RDRXCTL_MCEN 0x00000040 /* DMA config for multiple cores + * (RSS) enable + */ + +/* RTRPCS Bit Masks */ +#define IXGBE_RTRPCS_RRM 0x00000002 /* Receive Recycle Mode enable */ +/* Receive Arbitration Control: 0 Round Robin, 1 DFP */ +#define IXGBE_RTRPCS_RAC 0x00000004 +#define IXGBE_RTRPCS_ARBDIS 0x00000040 /* Arbitration disable bit */ + +/* RTTDT2C Bit Masks */ +#define IXGBE_RTTDT2C_MCL_SHIFT 12 +#define IXGBE_RTTDT2C_BWG_SHIFT 9 +#define IXGBE_RTTDT2C_GSP 0x40000000 +#define IXGBE_RTTDT2C_LSP 0x80000000 + +#define IXGBE_RTTPT2C_MCL_SHIFT 12 +#define IXGBE_RTTPT2C_BWG_SHIFT 9 +#define IXGBE_RTTPT2C_GSP 0x40000000 +#define IXGBE_RTTPT2C_LSP 0x80000000 + +/* RTTPCS Bit Masks */ +#define IXGBE_RTTPCS_TPPAC 0x00000020 /* 0 Round Robin, + * 1 SP - Strict Priority + */ +#define IXGBE_RTTPCS_ARBDIS 0x00000040 /* Arbiter disable */ +#define IXGBE_RTTPCS_TPRM 0x00000100 /* Transmit Recycle Mode enable */ +#define IXGBE_RTTPCS_ARBD_SHIFT 22 +#define IXGBE_RTTPCS_ARBD_DCB 0x4 /* Arbitration delay in DCB mode */ + +#define IXGBE_TXPBSIZE_20KB 0x00005000 /* 20KB Packet Buffer */ +#define IXGBE_TXPBSIZE_40KB 0x0000A000 /* 40KB Packet Buffer */ +#define IXGBE_RXPBSIZE_48KB 0x0000C000 /* 48KB Packet Buffer */ +#define IXGBE_RXPBSIZE_64KB 0x00010000 /* 64KB Packet Buffer */ +#define IXGBE_RXPBSIZE_80KB 0x00014000 /* 80KB Packet Buffer */ +#define IXGBE_RXPBSIZE_128KB 0x00020000 /* 128KB Packet Buffer */ + +#define IXGBE_TXPBTHRESH_DCB 0xA /* THRESH value for DCB mode */ + + +/* DCB hardware-specific driver APIs */ + +/* DCB PFC functions */ +s32 ixgbe_dcb_config_pfc_82599(struct ixgbe_hw *hw, + struct ixgbe_dcb_config *dcb_config); +s32 ixgbe_dcb_get_pfc_stats_82599(struct ixgbe_hw *hw, + struct ixgbe_hw_stats *stats, + u8 tc_count); + +/* DCB traffic class stats */ +s32 ixgbe_dcb_config_tc_stats_82599(struct ixgbe_hw *hw); +s32 ixgbe_dcb_get_tc_stats_82599(struct ixgbe_hw *hw, + struct ixgbe_hw_stats *stats, + u8 tc_count); + +/* DCB config arbiters */ +s32 ixgbe_dcb_config_tx_desc_arbiter_82599(struct ixgbe_hw *hw, + struct ixgbe_dcb_config *dcb_config); +s32 ixgbe_dcb_config_tx_data_arbiter_82599(struct ixgbe_hw *hw, + struct ixgbe_dcb_config *dcb_config); +s32 ixgbe_dcb_config_rx_arbiter_82599(struct ixgbe_hw *hw, + struct ixgbe_dcb_config *dcb_config); + + +/* DCB hw initialization */ +s32 ixgbe_dcb_hw_config_82599(struct ixgbe_hw *hw, + struct ixgbe_dcb_config *config); + +#endif /* _DCB_82599_CONFIG_H */ diff --git a/drivers/net/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ixgbe/ixgbe_dcb_nl.c index dd9d1d6..087cf88 100644 --- a/drivers/net/ixgbe/ixgbe_dcb_nl.c +++ b/drivers/net/ixgbe/ixgbe_dcb_nl.c @@ -35,6 +35,7 @@ #define BIT_PG_RX 0x04 #define BIT_PG_TX 0x08 #define BIT_BCN 0x10 +#define BIT_LINKSPEED 0x80 int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg, struct ixgbe_dcb_config *dst_dcb_cfg, int tc_max) @@ -89,25 +90,6 @@ int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg, src_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc; } - for (i = DCB_BCN_ATTR_RP_0; i < DCB_BCN_ATTR_RP_ALL; i++) { - dst_dcb_cfg->bcn.rp_admin_mode[i - DCB_BCN_ATTR_RP_0] = - src_dcb_cfg->bcn.rp_admin_mode[i - DCB_BCN_ATTR_RP_0]; - } - dst_dcb_cfg->bcn.bcna_option[0] = src_dcb_cfg->bcn.bcna_option[0]; - dst_dcb_cfg->bcn.bcna_option[1] = src_dcb_cfg->bcn.bcna_option[1]; - dst_dcb_cfg->bcn.rp_alpha = src_dcb_cfg->bcn.rp_alpha; - dst_dcb_cfg->bcn.rp_beta = src_dcb_cfg->bcn.rp_beta; - dst_dcb_cfg->bcn.rp_gd = src_dcb_cfg->bcn.rp_gd; - dst_dcb_cfg->bcn.rp_gi = src_dcb_cfg->bcn.rp_gi; - dst_dcb_cfg->bcn.rp_tmax = src_dcb_cfg->bcn.rp_tmax; - dst_dcb_cfg->bcn.rp_td = src_dcb_cfg->bcn.rp_td; - dst_dcb_cfg->bcn.rp_rmin = src_dcb_cfg->bcn.rp_rmin; - dst_dcb_cfg->bcn.rp_w = src_dcb_cfg->bcn.rp_w; - dst_dcb_cfg->bcn.rp_rd = src_dcb_cfg->bcn.rp_rd; - dst_dcb_cfg->bcn.rp_ru = src_dcb_cfg->bcn.rp_ru; - dst_dcb_cfg->bcn.rp_wrtt = src_dcb_cfg->bcn.rp_wrtt; - dst_dcb_cfg->bcn.rp_ri = src_dcb_cfg->bcn.rp_ri; - return 0; } @@ -444,175 +426,6 @@ static void ixgbe_dcbnl_setpfcstate(struct net_device *netdev, u8 state) return; } -static void ixgbe_dcbnl_getbcnrp(struct net_device *netdev, int priority, - u8 *setting) -{ - struct ixgbe_adapter *adapter = netdev_priv(netdev); - - *setting = adapter->dcb_cfg.bcn.rp_admin_mode[priority]; -} - - -static void ixgbe_dcbnl_getbcncfg(struct net_device *netdev, int enum_index, - u32 *setting) -{ - struct ixgbe_adapter *adapter = netdev_priv(netdev); - - switch (enum_index) { - case DCB_BCN_ATTR_BCNA_0: - *setting = adapter->dcb_cfg.bcn.bcna_option[0]; - break; - case DCB_BCN_ATTR_BCNA_1: - *setting = adapter->dcb_cfg.bcn.bcna_option[1]; - break; - case DCB_BCN_ATTR_ALPHA: - *setting = adapter->dcb_cfg.bcn.rp_alpha; - break; - case DCB_BCN_ATTR_BETA: - *setting = adapter->dcb_cfg.bcn.rp_beta; - break; - case DCB_BCN_ATTR_GD: - *setting = adapter->dcb_cfg.bcn.rp_gd; - break; - case DCB_BCN_ATTR_GI: - *setting = adapter->dcb_cfg.bcn.rp_gi; - break; - case DCB_BCN_ATTR_TMAX: - *setting = adapter->dcb_cfg.bcn.rp_tmax; - break; - case DCB_BCN_ATTR_TD: - *setting = adapter->dcb_cfg.bcn.rp_td; - break; - case DCB_BCN_ATTR_RMIN: - *setting = adapter->dcb_cfg.bcn.rp_rmin; - break; - case DCB_BCN_ATTR_W: - *setting = adapter->dcb_cfg.bcn.rp_w; - break; - case DCB_BCN_ATTR_RD: - *setting = adapter->dcb_cfg.bcn.rp_rd; - break; - case DCB_BCN_ATTR_RU: - *setting = adapter->dcb_cfg.bcn.rp_ru; - break; - case DCB_BCN_ATTR_WRTT: - *setting = adapter->dcb_cfg.bcn.rp_wrtt; - break; - case DCB_BCN_ATTR_RI: - *setting = adapter->dcb_cfg.bcn.rp_ri; - break; - default: - *setting = -1; - } -} - -static void ixgbe_dcbnl_setbcnrp(struct net_device *netdev, int priority, - u8 setting) -{ - struct ixgbe_adapter *adapter = netdev_priv(netdev); - - adapter->temp_dcb_cfg.bcn.rp_admin_mode[priority] = setting; - - if (adapter->temp_dcb_cfg.bcn.rp_admin_mode[priority] != - adapter->dcb_cfg.bcn.rp_admin_mode[priority]) - adapter->dcb_set_bitmap |= BIT_BCN; -} - -static void ixgbe_dcbnl_setbcncfg(struct net_device *netdev, int enum_index, - u32 setting) -{ - struct ixgbe_adapter *adapter = netdev_priv(netdev); - - switch (enum_index) { - case DCB_BCN_ATTR_BCNA_0: - adapter->temp_dcb_cfg.bcn.bcna_option[0] = setting; - if (adapter->temp_dcb_cfg.bcn.bcna_option[0] != - adapter->dcb_cfg.bcn.bcna_option[0]) - adapter->dcb_set_bitmap |= BIT_BCN; - break; - case DCB_BCN_ATTR_BCNA_1: - adapter->temp_dcb_cfg.bcn.bcna_option[1] = setting; - if (adapter->temp_dcb_cfg.bcn.bcna_option[1] != - adapter->dcb_cfg.bcn.bcna_option[1]) - adapter->dcb_set_bitmap |= BIT_BCN; - break; - case DCB_BCN_ATTR_ALPHA: - adapter->temp_dcb_cfg.bcn.rp_alpha = setting; - if (adapter->temp_dcb_cfg.bcn.rp_alpha != - adapter->dcb_cfg.bcn.rp_alpha) - adapter->dcb_set_bitmap |= BIT_BCN; - break; - case DCB_BCN_ATTR_BETA: - adapter->temp_dcb_cfg.bcn.rp_beta = setting; - if (adapter->temp_dcb_cfg.bcn.rp_beta != - adapter->dcb_cfg.bcn.rp_beta) - adapter->dcb_set_bitmap |= BIT_BCN; - break; - case DCB_BCN_ATTR_GD: - adapter->temp_dcb_cfg.bcn.rp_gd = setting; - if (adapter->temp_dcb_cfg.bcn.rp_gd != - adapter->dcb_cfg.bcn.rp_gd) - adapter->dcb_set_bitmap |= BIT_BCN; - break; - case DCB_BCN_ATTR_GI: - adapter->temp_dcb_cfg.bcn.rp_gi = setting; - if (adapter->temp_dcb_cfg.bcn.rp_gi != - adapter->dcb_cfg.bcn.rp_gi) - adapter->dcb_set_bitmap |= BIT_BCN; - break; - case DCB_BCN_ATTR_TMAX: - adapter->temp_dcb_cfg.bcn.rp_tmax = setting; - if (adapter->temp_dcb_cfg.bcn.rp_tmax != - adapter->dcb_cfg.bcn.rp_tmax) - adapter->dcb_set_bitmap |= BIT_BCN; - break; - case DCB_BCN_ATTR_TD: - adapter->temp_dcb_cfg.bcn.rp_td = setting; - if (adapter->temp_dcb_cfg.bcn.rp_td != - adapter->dcb_cfg.bcn.rp_td) - adapter->dcb_set_bitmap |= BIT_BCN; - break; - case DCB_BCN_ATTR_RMIN: - adapter->temp_dcb_cfg.bcn.rp_rmin = setting; - if (adapter->temp_dcb_cfg.bcn.rp_rmin != - adapter->dcb_cfg.bcn.rp_rmin) - adapter->dcb_set_bitmap |= BIT_BCN; - break; - case DCB_BCN_ATTR_W: - adapter->temp_dcb_cfg.bcn.rp_w = setting; - if (adapter->temp_dcb_cfg.bcn.rp_w != - adapter->dcb_cfg.bcn.rp_w) - adapter->dcb_set_bitmap |= BIT_BCN; - break; - case DCB_BCN_ATTR_RD: - adapter->temp_dcb_cfg.bcn.rp_rd = setting; - if (adapter->temp_dcb_cfg.bcn.rp_rd != - adapter->dcb_cfg.bcn.rp_rd) - adapter->dcb_set_bitmap |= BIT_BCN; - break; - case DCB_BCN_ATTR_RU: - adapter->temp_dcb_cfg.bcn.rp_ru = setting; - if (adapter->temp_dcb_cfg.bcn.rp_ru != - adapter->dcb_cfg.bcn.rp_ru) - adapter->dcb_set_bitmap |= BIT_BCN; - break; - case DCB_BCN_ATTR_WRTT: - adapter->temp_dcb_cfg.bcn.rp_wrtt = setting; - if (adapter->temp_dcb_cfg.bcn.rp_wrtt != - adapter->dcb_cfg.bcn.rp_wrtt) - adapter->dcb_set_bitmap |= BIT_BCN; - break; - case DCB_BCN_ATTR_RI: - adapter->temp_dcb_cfg.bcn.rp_ri = setting; - if (adapter->temp_dcb_cfg.bcn.rp_ri != - adapter->dcb_cfg.bcn.rp_ri) - adapter->dcb_set_bitmap |= BIT_BCN; - break; - default: - break; - } -} - struct dcbnl_rtnl_ops dcbnl_ops = { .getstate = ixgbe_dcbnl_get_state, .setstate = ixgbe_dcbnl_set_state, @@ -633,9 +446,5 @@ struct dcbnl_rtnl_ops dcbnl_ops = { .setnumtcs = ixgbe_dcbnl_setnumtcs, .getpfcstate = ixgbe_dcbnl_getpfcstate, .setpfcstate = ixgbe_dcbnl_setpfcstate, - .getbcncfg = ixgbe_dcbnl_getbcncfg, - .getbcnrp = ixgbe_dcbnl_getbcnrp, - .setbcncfg = ixgbe_dcbnl_setbcncfg, - .setbcnrp = ixgbe_dcbnl_setbcnrp }; 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