diff options
Diffstat (limited to 'drivers/net/ixgbe/ixgbe_dcb_82599.c')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_dcb_82599.c | 480 |
1 files changed, 0 insertions, 480 deletions
diff --git a/drivers/net/ixgbe/ixgbe_dcb_82599.c b/drivers/net/ixgbe/ixgbe_dcb_82599.c deleted file mode 100644 index 4f7a26ab411..00000000000 --- a/drivers/net/ixgbe/ixgbe_dcb_82599.c +++ /dev/null @@ -1,480 +0,0 @@ -/******************************************************************************* - - 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: - 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 - * (always enable recycle mode; WSP) - */ - reg = IXGBE_RTRPCS_RRM | IXGBE_RTRPCS_RAC | IXGBE_RTRPCS_ARBDIS; - IXGBE_WRITE_REG(hw, IXGBE_RTRPCS, reg); - - /* 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; - - /* 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 - * (always enable recycle mode; SP; arb delay) - */ - reg = IXGBE_RTTPCS_TPPAC | IXGBE_RTTPCS_TPRM | - (IXGBE_RTTPCS_ARBD_DCB << IXGBE_RTTPCS_ARBD_SHIFT) | - IXGBE_RTTPCS_ARBDIS; - IXGBE_WRITE_REG(hw, IXGBE_RTTPCS, reg); - - /* 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, rx_pba_size; - - /* 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.fc_enable(hw, i); - goto out; - } - - /* Configure PFC Tx thresholds per TC */ - for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { - if (dcb_config->rx_pba_cfg == pba_equal) - rx_pba_size = IXGBE_RXPBSIZE_64KB; - else - rx_pba_size = (i < 4) ? IXGBE_RXPBSIZE_80KB - : IXGBE_RXPBSIZE_48KB; - - reg = ((rx_pba_size >> 5) & 0xFFE0); - if (dcb_config->tc_config[i].dcb_pfc == pfc_enabled_full || - dcb_config->tc_config[i].dcb_pfc == pfc_enabled_tx) - reg |= IXGBE_FCRTL_XONE; - IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(i), reg); - - reg = ((rx_pba_size >> 2) & 0xFFE0); - if (dcb_config->tc_config[i].dcb_pfc == pfc_enabled_full || - dcb_config->tc_config[i].dcb_pfc == pfc_enabled_tx) - reg |= IXGBE_FCRTH_FCEN; - IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(i), reg); - } - - /* 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) -{ - 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; -} - |