mirror of https://gitee.com/openkylin/linux.git
3794 lines
125 KiB
C
3794 lines
125 KiB
C
/*
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* Copyright (c) 2006 - 2009 Intel Corporation. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/ip.h>
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#include <linux/tcp.h>
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#include <linux/if_vlan.h>
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#include <linux/inet_lro.h>
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#include <linux/slab.h>
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#include "nes.h"
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static unsigned int nes_lro_max_aggr = NES_LRO_MAX_AGGR;
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module_param(nes_lro_max_aggr, uint, 0444);
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MODULE_PARM_DESC(nes_lro_max_aggr, "NIC LRO max packet aggregation");
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static int wide_ppm_offset;
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module_param(wide_ppm_offset, int, 0644);
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MODULE_PARM_DESC(wide_ppm_offset, "Increase CX4 interface clock ppm offset, 0=100ppm (default), 1=300ppm");
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static u32 crit_err_count;
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u32 int_mod_timer_init;
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u32 int_mod_cq_depth_256;
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u32 int_mod_cq_depth_128;
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u32 int_mod_cq_depth_32;
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u32 int_mod_cq_depth_24;
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u32 int_mod_cq_depth_16;
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u32 int_mod_cq_depth_4;
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u32 int_mod_cq_depth_1;
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static const u8 nes_max_critical_error_count = 100;
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#include "nes_cm.h"
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static void nes_cqp_ce_handler(struct nes_device *nesdev, struct nes_hw_cq *cq);
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static void nes_init_csr_ne020(struct nes_device *nesdev, u8 hw_rev, u8 port_count);
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static int nes_init_serdes(struct nes_device *nesdev, u8 hw_rev, u8 port_count,
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struct nes_adapter *nesadapter, u8 OneG_Mode);
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static void nes_nic_napi_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq);
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static void nes_process_aeq(struct nes_device *nesdev, struct nes_hw_aeq *aeq);
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static void nes_process_ceq(struct nes_device *nesdev, struct nes_hw_ceq *ceq);
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static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
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struct nes_hw_aeqe *aeqe);
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static void process_critical_error(struct nes_device *nesdev);
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static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number);
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static unsigned int nes_reset_adapter_ne020(struct nes_device *nesdev, u8 *OneG_Mode);
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static void nes_terminate_timeout(unsigned long context);
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static void nes_terminate_start_timer(struct nes_qp *nesqp);
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#ifdef CONFIG_INFINIBAND_NES_DEBUG
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static unsigned char *nes_iwarp_state_str[] = {
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"Non-Existant",
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"Idle",
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"RTS",
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"Closing",
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"RSVD1",
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"Terminate",
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"Error",
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"RSVD2",
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};
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static unsigned char *nes_tcp_state_str[] = {
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"Non-Existant",
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"Closed",
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"Listen",
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"SYN Sent",
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"SYN Rcvd",
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"Established",
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"Close Wait",
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"FIN Wait 1",
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"Closing",
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"Last Ack",
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"FIN Wait 2",
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"Time Wait",
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"RSVD1",
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"RSVD2",
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"RSVD3",
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"RSVD4",
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};
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#endif
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/**
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* nes_nic_init_timer_defaults
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*/
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void nes_nic_init_timer_defaults(struct nes_device *nesdev, u8 jumbomode)
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{
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unsigned long flags;
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struct nes_adapter *nesadapter = nesdev->nesadapter;
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struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer;
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spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags);
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shared_timer->timer_in_use_min = NES_NIC_FAST_TIMER_LOW;
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shared_timer->timer_in_use_max = NES_NIC_FAST_TIMER_HIGH;
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if (jumbomode) {
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shared_timer->threshold_low = DEFAULT_JUMBO_NES_QL_LOW;
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shared_timer->threshold_target = DEFAULT_JUMBO_NES_QL_TARGET;
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shared_timer->threshold_high = DEFAULT_JUMBO_NES_QL_HIGH;
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} else {
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shared_timer->threshold_low = DEFAULT_NES_QL_LOW;
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shared_timer->threshold_target = DEFAULT_NES_QL_TARGET;
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shared_timer->threshold_high = DEFAULT_NES_QL_HIGH;
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}
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/* todo use netdev->mtu to set thresholds */
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spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags);
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}
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/**
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* nes_nic_init_timer
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*/
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static void nes_nic_init_timer(struct nes_device *nesdev)
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{
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unsigned long flags;
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struct nes_adapter *nesadapter = nesdev->nesadapter;
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struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer;
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spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags);
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if (shared_timer->timer_in_use_old == 0) {
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nesdev->deepcq_count = 0;
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shared_timer->timer_direction_upward = 0;
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shared_timer->timer_direction_downward = 0;
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shared_timer->timer_in_use = NES_NIC_FAST_TIMER;
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shared_timer->timer_in_use_old = 0;
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}
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if (shared_timer->timer_in_use != shared_timer->timer_in_use_old) {
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shared_timer->timer_in_use_old = shared_timer->timer_in_use;
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nes_write32(nesdev->regs+NES_PERIODIC_CONTROL,
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0x80000000 | ((u32)(shared_timer->timer_in_use*8)));
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}
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/* todo use netdev->mtu to set thresholds */
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spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags);
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}
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/**
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* nes_nic_tune_timer
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*/
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static void nes_nic_tune_timer(struct nes_device *nesdev)
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{
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unsigned long flags;
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struct nes_adapter *nesadapter = nesdev->nesadapter;
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struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer;
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u16 cq_count = nesdev->currcq_count;
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spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags);
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if (shared_timer->cq_count_old <= cq_count)
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shared_timer->cq_direction_downward = 0;
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else
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shared_timer->cq_direction_downward++;
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shared_timer->cq_count_old = cq_count;
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if (shared_timer->cq_direction_downward > NES_NIC_CQ_DOWNWARD_TREND) {
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if (cq_count <= shared_timer->threshold_low &&
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shared_timer->threshold_low > 4) {
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shared_timer->threshold_low = shared_timer->threshold_low/2;
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shared_timer->cq_direction_downward=0;
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nesdev->currcq_count = 0;
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spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags);
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return;
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}
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}
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if (cq_count > 1) {
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nesdev->deepcq_count += cq_count;
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if (cq_count <= shared_timer->threshold_low) { /* increase timer gently */
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shared_timer->timer_direction_upward++;
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shared_timer->timer_direction_downward = 0;
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} else if (cq_count <= shared_timer->threshold_target) { /* balanced */
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shared_timer->timer_direction_upward = 0;
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shared_timer->timer_direction_downward = 0;
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} else if (cq_count <= shared_timer->threshold_high) { /* decrease timer gently */
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shared_timer->timer_direction_downward++;
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shared_timer->timer_direction_upward = 0;
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} else if (cq_count <= (shared_timer->threshold_high) * 2) {
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shared_timer->timer_in_use -= 2;
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shared_timer->timer_direction_upward = 0;
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shared_timer->timer_direction_downward++;
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} else {
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shared_timer->timer_in_use -= 4;
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shared_timer->timer_direction_upward = 0;
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shared_timer->timer_direction_downward++;
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}
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if (shared_timer->timer_direction_upward > 3 ) { /* using history */
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shared_timer->timer_in_use += 3;
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shared_timer->timer_direction_upward = 0;
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shared_timer->timer_direction_downward = 0;
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}
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if (shared_timer->timer_direction_downward > 5) { /* using history */
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shared_timer->timer_in_use -= 4 ;
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shared_timer->timer_direction_downward = 0;
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shared_timer->timer_direction_upward = 0;
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}
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}
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/* boundary checking */
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if (shared_timer->timer_in_use > shared_timer->threshold_high)
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shared_timer->timer_in_use = shared_timer->threshold_high;
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else if (shared_timer->timer_in_use < shared_timer->threshold_low)
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shared_timer->timer_in_use = shared_timer->threshold_low;
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nesdev->currcq_count = 0;
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spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags);
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}
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/**
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* nes_init_adapter - initialize adapter
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*/
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struct nes_adapter *nes_init_adapter(struct nes_device *nesdev, u8 hw_rev) {
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struct nes_adapter *nesadapter = NULL;
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unsigned long num_pds;
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u32 u32temp;
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u32 port_count;
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u16 max_rq_wrs;
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u16 max_sq_wrs;
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u32 max_mr;
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u32 max_256pbl;
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u32 max_4kpbl;
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u32 max_qp;
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u32 max_irrq;
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u32 max_cq;
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u32 hte_index_mask;
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u32 adapter_size;
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u32 arp_table_size;
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u16 vendor_id;
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u16 device_id;
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u8 OneG_Mode;
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u8 func_index;
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/* search the list of existing adapters */
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list_for_each_entry(nesadapter, &nes_adapter_list, list) {
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nes_debug(NES_DBG_INIT, "Searching Adapter list for PCI devfn = 0x%X,"
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" adapter PCI slot/bus = %u/%u, pci devices PCI slot/bus = %u/%u, .\n",
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nesdev->pcidev->devfn,
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PCI_SLOT(nesadapter->devfn),
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nesadapter->bus_number,
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PCI_SLOT(nesdev->pcidev->devfn),
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nesdev->pcidev->bus->number );
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if ((PCI_SLOT(nesadapter->devfn) == PCI_SLOT(nesdev->pcidev->devfn)) &&
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(nesadapter->bus_number == nesdev->pcidev->bus->number)) {
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nesadapter->ref_count++;
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return nesadapter;
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}
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}
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/* no adapter found */
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num_pds = pci_resource_len(nesdev->pcidev, BAR_1) >> PAGE_SHIFT;
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if ((hw_rev != NE020_REV) && (hw_rev != NE020_REV1)) {
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nes_debug(NES_DBG_INIT, "NE020 driver detected unknown hardware revision 0x%x\n",
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hw_rev);
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return NULL;
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}
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nes_debug(NES_DBG_INIT, "Determine Soft Reset, QP_control=0x%x, CPU0=0x%x, CPU1=0x%x, CPU2=0x%x\n",
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nes_read_indexed(nesdev, NES_IDX_QP_CONTROL + PCI_FUNC(nesdev->pcidev->devfn) * 8),
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nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS),
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nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS + 4),
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nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS + 8));
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nes_debug(NES_DBG_INIT, "Reset and init NE020\n");
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if ((port_count = nes_reset_adapter_ne020(nesdev, &OneG_Mode)) == 0)
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return NULL;
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max_qp = nes_read_indexed(nesdev, NES_IDX_QP_CTX_SIZE);
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nes_debug(NES_DBG_INIT, "QP_CTX_SIZE=%u\n", max_qp);
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u32temp = nes_read_indexed(nesdev, NES_IDX_QUAD_HASH_TABLE_SIZE);
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if (max_qp > ((u32)1 << (u32temp & 0x001f))) {
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nes_debug(NES_DBG_INIT, "Reducing Max QPs to %u due to hash table size = 0x%08X\n",
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max_qp, u32temp);
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max_qp = (u32)1 << (u32temp & 0x001f);
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}
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hte_index_mask = ((u32)1 << ((u32temp & 0x001f)+1))-1;
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nes_debug(NES_DBG_INIT, "Max QP = %u, hte_index_mask = 0x%08X.\n",
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max_qp, hte_index_mask);
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u32temp = nes_read_indexed(nesdev, NES_IDX_IRRQ_COUNT);
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max_irrq = 1 << (u32temp & 0x001f);
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if (max_qp > max_irrq) {
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max_qp = max_irrq;
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nes_debug(NES_DBG_INIT, "Reducing Max QPs to %u due to Available Q1s.\n",
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max_qp);
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}
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/* there should be no reason to allocate more pds than qps */
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if (num_pds > max_qp)
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num_pds = max_qp;
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u32temp = nes_read_indexed(nesdev, NES_IDX_MRT_SIZE);
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max_mr = (u32)8192 << (u32temp & 0x7);
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u32temp = nes_read_indexed(nesdev, NES_IDX_PBL_REGION_SIZE);
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max_256pbl = (u32)1 << (u32temp & 0x0000001f);
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max_4kpbl = (u32)1 << ((u32temp >> 16) & 0x0000001f);
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max_cq = nes_read_indexed(nesdev, NES_IDX_CQ_CTX_SIZE);
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u32temp = nes_read_indexed(nesdev, NES_IDX_ARP_CACHE_SIZE);
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arp_table_size = 1 << u32temp;
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adapter_size = (sizeof(struct nes_adapter) +
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(sizeof(unsigned long)-1)) & (~(sizeof(unsigned long)-1));
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adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(max_qp);
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adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(max_mr);
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adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(max_cq);
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adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(num_pds);
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adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(arp_table_size);
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adapter_size += sizeof(struct nes_qp **) * max_qp;
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/* allocate a new adapter struct */
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nesadapter = kzalloc(adapter_size, GFP_KERNEL);
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if (nesadapter == NULL) {
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return NULL;
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}
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nes_debug(NES_DBG_INIT, "Allocating new nesadapter @ %p, size = %u (actual size = %u).\n",
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nesadapter, (u32)sizeof(struct nes_adapter), adapter_size);
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if (nes_read_eeprom_values(nesdev, nesadapter)) {
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printk(KERN_ERR PFX "Unable to read EEPROM data.\n");
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kfree(nesadapter);
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return NULL;
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}
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nesadapter->vendor_id = (((u32) nesadapter->mac_addr_high) << 8) |
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(nesadapter->mac_addr_low >> 24);
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pci_bus_read_config_word(nesdev->pcidev->bus, nesdev->pcidev->devfn,
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PCI_DEVICE_ID, &device_id);
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nesadapter->vendor_part_id = device_id;
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if (nes_init_serdes(nesdev, hw_rev, port_count, nesadapter,
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OneG_Mode)) {
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kfree(nesadapter);
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return NULL;
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}
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nes_init_csr_ne020(nesdev, hw_rev, port_count);
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memset(nesadapter->pft_mcast_map, 255,
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sizeof nesadapter->pft_mcast_map);
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/* populate the new nesadapter */
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nesadapter->devfn = nesdev->pcidev->devfn;
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nesadapter->bus_number = nesdev->pcidev->bus->number;
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nesadapter->ref_count = 1;
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nesadapter->timer_int_req = 0xffff0000;
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nesadapter->OneG_Mode = OneG_Mode;
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nesadapter->doorbell_start = nesdev->doorbell_region;
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/* nesadapter->tick_delta = clk_divisor; */
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nesadapter->hw_rev = hw_rev;
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nesadapter->port_count = port_count;
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nesadapter->max_qp = max_qp;
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nesadapter->hte_index_mask = hte_index_mask;
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nesadapter->max_irrq = max_irrq;
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nesadapter->max_mr = max_mr;
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nesadapter->max_256pbl = max_256pbl - 1;
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nesadapter->max_4kpbl = max_4kpbl - 1;
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nesadapter->max_cq = max_cq;
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nesadapter->free_256pbl = max_256pbl - 1;
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nesadapter->free_4kpbl = max_4kpbl - 1;
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nesadapter->max_pd = num_pds;
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nesadapter->arp_table_size = arp_table_size;
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nesadapter->et_pkt_rate_low = NES_TIMER_ENABLE_LIMIT;
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if (nes_drv_opt & NES_DRV_OPT_DISABLE_INT_MOD) {
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nesadapter->et_use_adaptive_rx_coalesce = 0;
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nesadapter->timer_int_limit = NES_TIMER_INT_LIMIT;
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nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
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} else {
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nesadapter->et_use_adaptive_rx_coalesce = 1;
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nesadapter->timer_int_limit = NES_TIMER_INT_LIMIT_DYNAMIC;
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nesadapter->et_rx_coalesce_usecs_irq = 0;
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printk(PFX "%s: Using Adaptive Interrupt Moderation\n", __func__);
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}
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/* Setup and enable the periodic timer */
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if (nesadapter->et_rx_coalesce_usecs_irq)
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nes_write32(nesdev->regs+NES_PERIODIC_CONTROL, 0x80000000 |
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((u32)(nesadapter->et_rx_coalesce_usecs_irq * 8)));
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else
|
|
nes_write32(nesdev->regs+NES_PERIODIC_CONTROL, 0x00000000);
|
|
|
|
nesadapter->base_pd = 1;
|
|
|
|
nesadapter->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY |
|
|
IB_DEVICE_MEM_WINDOW |
|
|
IB_DEVICE_MEM_MGT_EXTENSIONS;
|
|
|
|
nesadapter->allocated_qps = (unsigned long *)&(((unsigned char *)nesadapter)
|
|
[(sizeof(struct nes_adapter)+(sizeof(unsigned long)-1))&(~(sizeof(unsigned long)-1))]);
|
|
nesadapter->allocated_cqs = &nesadapter->allocated_qps[BITS_TO_LONGS(max_qp)];
|
|
nesadapter->allocated_mrs = &nesadapter->allocated_cqs[BITS_TO_LONGS(max_cq)];
|
|
nesadapter->allocated_pds = &nesadapter->allocated_mrs[BITS_TO_LONGS(max_mr)];
|
|
nesadapter->allocated_arps = &nesadapter->allocated_pds[BITS_TO_LONGS(num_pds)];
|
|
nesadapter->qp_table = (struct nes_qp **)(&nesadapter->allocated_arps[BITS_TO_LONGS(arp_table_size)]);
|
|
|
|
|
|
/* mark the usual suspect QPs, MR and CQs as in use */
|
|
for (u32temp = 0; u32temp < NES_FIRST_QPN; u32temp++) {
|
|
set_bit(u32temp, nesadapter->allocated_qps);
|
|
set_bit(u32temp, nesadapter->allocated_cqs);
|
|
}
|
|
set_bit(0, nesadapter->allocated_mrs);
|
|
|
|
for (u32temp = 0; u32temp < 20; u32temp++)
|
|
set_bit(u32temp, nesadapter->allocated_pds);
|
|
u32temp = nes_read_indexed(nesdev, NES_IDX_QP_MAX_CFG_SIZES);
|
|
|
|
max_rq_wrs = ((u32temp >> 8) & 3);
|
|
switch (max_rq_wrs) {
|
|
case 0:
|
|
max_rq_wrs = 4;
|
|
break;
|
|
case 1:
|
|
max_rq_wrs = 16;
|
|
break;
|
|
case 2:
|
|
max_rq_wrs = 32;
|
|
break;
|
|
case 3:
|
|
max_rq_wrs = 512;
|
|
break;
|
|
}
|
|
|
|
max_sq_wrs = (u32temp & 3);
|
|
switch (max_sq_wrs) {
|
|
case 0:
|
|
max_sq_wrs = 4;
|
|
break;
|
|
case 1:
|
|
max_sq_wrs = 16;
|
|
break;
|
|
case 2:
|
|
max_sq_wrs = 32;
|
|
break;
|
|
case 3:
|
|
max_sq_wrs = 512;
|
|
break;
|
|
}
|
|
nesadapter->max_qp_wr = min(max_rq_wrs, max_sq_wrs);
|
|
nesadapter->max_irrq_wr = (u32temp >> 16) & 3;
|
|
|
|
nesadapter->max_sge = 4;
|
|
nesadapter->max_cqe = 32766;
|
|
|
|
if (nes_read_eeprom_values(nesdev, nesadapter)) {
|
|
printk(KERN_ERR PFX "Unable to read EEPROM data.\n");
|
|
kfree(nesadapter);
|
|
return NULL;
|
|
}
|
|
|
|
u32temp = nes_read_indexed(nesdev, NES_IDX_TCP_TIMER_CONFIG);
|
|
nes_write_indexed(nesdev, NES_IDX_TCP_TIMER_CONFIG,
|
|
(u32temp & 0xff000000) | (nesadapter->tcp_timer_core_clk_divisor & 0x00ffffff));
|
|
|
|
/* setup port configuration */
|
|
if (nesadapter->port_count == 1) {
|
|
nesadapter->log_port = 0x00000000;
|
|
if (nes_drv_opt & NES_DRV_OPT_DUAL_LOGICAL_PORT)
|
|
nes_write_indexed(nesdev, NES_IDX_TX_POOL_SIZE, 0x00000002);
|
|
else
|
|
nes_write_indexed(nesdev, NES_IDX_TX_POOL_SIZE, 0x00000003);
|
|
} else {
|
|
if (nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
|
|
nesadapter->log_port = 0x000000D8;
|
|
} else {
|
|
if (nesadapter->port_count == 2)
|
|
nesadapter->log_port = 0x00000044;
|
|
else
|
|
nesadapter->log_port = 0x000000e4;
|
|
}
|
|
nes_write_indexed(nesdev, NES_IDX_TX_POOL_SIZE, 0x00000003);
|
|
}
|
|
|
|
nes_write_indexed(nesdev, NES_IDX_NIC_LOGPORT_TO_PHYPORT,
|
|
nesadapter->log_port);
|
|
nes_debug(NES_DBG_INIT, "Probe time, LOG2PHY=%u\n",
|
|
nes_read_indexed(nesdev, NES_IDX_NIC_LOGPORT_TO_PHYPORT));
|
|
|
|
spin_lock_init(&nesadapter->resource_lock);
|
|
spin_lock_init(&nesadapter->phy_lock);
|
|
spin_lock_init(&nesadapter->pbl_lock);
|
|
spin_lock_init(&nesadapter->periodic_timer_lock);
|
|
|
|
INIT_LIST_HEAD(&nesadapter->nesvnic_list[0]);
|
|
INIT_LIST_HEAD(&nesadapter->nesvnic_list[1]);
|
|
INIT_LIST_HEAD(&nesadapter->nesvnic_list[2]);
|
|
INIT_LIST_HEAD(&nesadapter->nesvnic_list[3]);
|
|
|
|
if ((!nesadapter->OneG_Mode) && (nesadapter->port_count == 2)) {
|
|
u32 pcs_control_status0, pcs_control_status1;
|
|
u32 reset_value;
|
|
u32 i = 0;
|
|
u32 int_cnt = 0;
|
|
u32 ext_cnt = 0;
|
|
unsigned long flags;
|
|
u32 j = 0;
|
|
|
|
pcs_control_status0 = nes_read_indexed(nesdev,
|
|
NES_IDX_PHY_PCS_CONTROL_STATUS0);
|
|
pcs_control_status1 = nes_read_indexed(nesdev,
|
|
NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
|
|
|
|
for (i = 0; i < NES_MAX_LINK_CHECK; i++) {
|
|
pcs_control_status0 = nes_read_indexed(nesdev,
|
|
NES_IDX_PHY_PCS_CONTROL_STATUS0);
|
|
pcs_control_status1 = nes_read_indexed(nesdev,
|
|
NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
|
|
if ((0x0F000100 == (pcs_control_status0 & 0x0F000100))
|
|
|| (0x0F000100 == (pcs_control_status1 & 0x0F000100)))
|
|
int_cnt++;
|
|
msleep(1);
|
|
}
|
|
if (int_cnt > 1) {
|
|
spin_lock_irqsave(&nesadapter->phy_lock, flags);
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, 0x0000F0C8);
|
|
mh_detected++;
|
|
reset_value = nes_read32(nesdev->regs+NES_SOFTWARE_RESET);
|
|
reset_value |= 0x0000003d;
|
|
nes_write32(nesdev->regs+NES_SOFTWARE_RESET, reset_value);
|
|
|
|
while (((nes_read32(nesdev->regs+NES_SOFTWARE_RESET)
|
|
& 0x00000040) != 0x00000040) && (j++ < 5000));
|
|
spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
|
|
|
|
pcs_control_status0 = nes_read_indexed(nesdev,
|
|
NES_IDX_PHY_PCS_CONTROL_STATUS0);
|
|
pcs_control_status1 = nes_read_indexed(nesdev,
|
|
NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
|
|
|
|
for (i = 0; i < NES_MAX_LINK_CHECK; i++) {
|
|
pcs_control_status0 = nes_read_indexed(nesdev,
|
|
NES_IDX_PHY_PCS_CONTROL_STATUS0);
|
|
pcs_control_status1 = nes_read_indexed(nesdev,
|
|
NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
|
|
if ((0x0F000100 == (pcs_control_status0 & 0x0F000100))
|
|
|| (0x0F000100 == (pcs_control_status1 & 0x0F000100))) {
|
|
if (++ext_cnt > int_cnt) {
|
|
spin_lock_irqsave(&nesadapter->phy_lock, flags);
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1,
|
|
0x0000F088);
|
|
mh_detected++;
|
|
reset_value = nes_read32(nesdev->regs+NES_SOFTWARE_RESET);
|
|
reset_value |= 0x0000003d;
|
|
nes_write32(nesdev->regs+NES_SOFTWARE_RESET, reset_value);
|
|
|
|
while (((nes_read32(nesdev->regs+NES_SOFTWARE_RESET)
|
|
& 0x00000040) != 0x00000040) && (j++ < 5000));
|
|
spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
|
|
break;
|
|
}
|
|
}
|
|
msleep(1);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (nesadapter->hw_rev == NE020_REV) {
|
|
init_timer(&nesadapter->mh_timer);
|
|
nesadapter->mh_timer.function = nes_mh_fix;
|
|
nesadapter->mh_timer.expires = jiffies + (HZ/5); /* 1 second */
|
|
nesadapter->mh_timer.data = (unsigned long)nesdev;
|
|
add_timer(&nesadapter->mh_timer);
|
|
} else {
|
|
nes_write32(nesdev->regs+NES_INTF_INT_STAT, 0x0f000000);
|
|
}
|
|
|
|
init_timer(&nesadapter->lc_timer);
|
|
nesadapter->lc_timer.function = nes_clc;
|
|
nesadapter->lc_timer.expires = jiffies + 3600 * HZ; /* 1 hour */
|
|
nesadapter->lc_timer.data = (unsigned long)nesdev;
|
|
add_timer(&nesadapter->lc_timer);
|
|
|
|
list_add_tail(&nesadapter->list, &nes_adapter_list);
|
|
|
|
for (func_index = 0; func_index < 8; func_index++) {
|
|
pci_bus_read_config_word(nesdev->pcidev->bus,
|
|
PCI_DEVFN(PCI_SLOT(nesdev->pcidev->devfn),
|
|
func_index), 0, &vendor_id);
|
|
if (vendor_id == 0xffff)
|
|
break;
|
|
}
|
|
nes_debug(NES_DBG_INIT, "%s %d functions found for %s.\n", __func__,
|
|
func_index, pci_name(nesdev->pcidev));
|
|
nesadapter->adapter_fcn_count = func_index;
|
|
|
|
return nesadapter;
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_reset_adapter_ne020
|
|
*/
|
|
static unsigned int nes_reset_adapter_ne020(struct nes_device *nesdev, u8 *OneG_Mode)
|
|
{
|
|
u32 port_count;
|
|
u32 u32temp;
|
|
u32 i;
|
|
|
|
u32temp = nes_read32(nesdev->regs+NES_SOFTWARE_RESET);
|
|
port_count = ((u32temp & 0x00000300) >> 8) + 1;
|
|
/* TODO: assuming that both SERDES are set the same for now */
|
|
*OneG_Mode = (u32temp & 0x00003c00) ? 0 : 1;
|
|
nes_debug(NES_DBG_INIT, "Initial Software Reset = 0x%08X, port_count=%u\n",
|
|
u32temp, port_count);
|
|
if (*OneG_Mode)
|
|
nes_debug(NES_DBG_INIT, "Running in 1G mode.\n");
|
|
u32temp &= 0xff00ffc0;
|
|
switch (port_count) {
|
|
case 1:
|
|
u32temp |= 0x00ee0000;
|
|
break;
|
|
case 2:
|
|
u32temp |= 0x00cc0000;
|
|
break;
|
|
case 4:
|
|
u32temp |= 0x00000000;
|
|
break;
|
|
default:
|
|
return 0;
|
|
break;
|
|
}
|
|
|
|
/* check and do full reset if needed */
|
|
if (nes_read_indexed(nesdev, NES_IDX_QP_CONTROL+(PCI_FUNC(nesdev->pcidev->devfn)*8))) {
|
|
nes_debug(NES_DBG_INIT, "Issuing Full Soft reset = 0x%08X\n", u32temp | 0xd);
|
|
nes_write32(nesdev->regs+NES_SOFTWARE_RESET, u32temp | 0xd);
|
|
|
|
i = 0;
|
|
while (((nes_read32(nesdev->regs+NES_SOFTWARE_RESET) & 0x00000040) == 0) && i++ < 10000)
|
|
mdelay(1);
|
|
if (i > 10000) {
|
|
nes_debug(NES_DBG_INIT, "Did not see full soft reset done.\n");
|
|
return 0;
|
|
}
|
|
|
|
i = 0;
|
|
while ((nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS) != 0x80) && i++ < 10000)
|
|
mdelay(1);
|
|
if (i > 10000) {
|
|
printk(KERN_ERR PFX "Internal CPU not ready, status = %02X\n",
|
|
nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS));
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* port reset */
|
|
switch (port_count) {
|
|
case 1:
|
|
u32temp |= 0x00ee0010;
|
|
break;
|
|
case 2:
|
|
u32temp |= 0x00cc0030;
|
|
break;
|
|
case 4:
|
|
u32temp |= 0x00000030;
|
|
break;
|
|
}
|
|
|
|
nes_debug(NES_DBG_INIT, "Issuing Port Soft reset = 0x%08X\n", u32temp | 0xd);
|
|
nes_write32(nesdev->regs+NES_SOFTWARE_RESET, u32temp | 0xd);
|
|
|
|
i = 0;
|
|
while (((nes_read32(nesdev->regs+NES_SOFTWARE_RESET) & 0x00000040) == 0) && i++ < 10000)
|
|
mdelay(1);
|
|
if (i > 10000) {
|
|
nes_debug(NES_DBG_INIT, "Did not see port soft reset done.\n");
|
|
return 0;
|
|
}
|
|
|
|
/* serdes 0 */
|
|
i = 0;
|
|
while (((u32temp = (nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS0)
|
|
& 0x0000000f)) != 0x0000000f) && i++ < 5000)
|
|
mdelay(1);
|
|
if (i > 5000) {
|
|
nes_debug(NES_DBG_INIT, "Serdes 0 not ready, status=%x\n", u32temp);
|
|
return 0;
|
|
}
|
|
|
|
/* serdes 1 */
|
|
if (port_count > 1) {
|
|
i = 0;
|
|
while (((u32temp = (nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS1)
|
|
& 0x0000000f)) != 0x0000000f) && i++ < 5000)
|
|
mdelay(1);
|
|
if (i > 5000) {
|
|
nes_debug(NES_DBG_INIT, "Serdes 1 not ready, status=%x\n", u32temp);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return port_count;
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_init_serdes
|
|
*/
|
|
static int nes_init_serdes(struct nes_device *nesdev, u8 hw_rev, u8 port_count,
|
|
struct nes_adapter *nesadapter, u8 OneG_Mode)
|
|
{
|
|
int i;
|
|
u32 u32temp;
|
|
u32 sds;
|
|
|
|
if (hw_rev != NE020_REV) {
|
|
/* init serdes 0 */
|
|
switch (nesadapter->phy_type[0]) {
|
|
case NES_PHY_TYPE_CX4:
|
|
if (wide_ppm_offset)
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000FFFAA);
|
|
else
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000000FF);
|
|
break;
|
|
case NES_PHY_TYPE_KR:
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000000FF);
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP0, 0x00000000);
|
|
break;
|
|
case NES_PHY_TYPE_PUMA_1G:
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000000FF);
|
|
sds = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0);
|
|
sds |= 0x00000100;
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0, sds);
|
|
break;
|
|
default:
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000000FF);
|
|
break;
|
|
}
|
|
|
|
if (!OneG_Mode)
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_HIGHZ_LANE_MODE0, 0x11110000);
|
|
|
|
if (port_count < 2)
|
|
return 0;
|
|
|
|
/* init serdes 1 */
|
|
if (!(OneG_Mode && (nesadapter->phy_type[1] != NES_PHY_TYPE_PUMA_1G)))
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL1, 0x000000FF);
|
|
|
|
switch (nesadapter->phy_type[1]) {
|
|
case NES_PHY_TYPE_ARGUS:
|
|
case NES_PHY_TYPE_SFP_D:
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP0, 0x00000000);
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP1, 0x00000000);
|
|
break;
|
|
case NES_PHY_TYPE_CX4:
|
|
if (wide_ppm_offset)
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL1, 0x000FFFAA);
|
|
break;
|
|
case NES_PHY_TYPE_KR:
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP1, 0x00000000);
|
|
break;
|
|
case NES_PHY_TYPE_PUMA_1G:
|
|
sds = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1);
|
|
sds |= 0x000000100;
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, sds);
|
|
}
|
|
if (!OneG_Mode) {
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_HIGHZ_LANE_MODE1, 0x11110000);
|
|
sds = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1);
|
|
sds &= 0xFFFFFFBF;
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, sds);
|
|
}
|
|
} else {
|
|
/* init serdes 0 */
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0, 0x00000008);
|
|
i = 0;
|
|
while (((u32temp = (nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS0)
|
|
& 0x0000000f)) != 0x0000000f) && i++ < 5000)
|
|
mdelay(1);
|
|
if (i > 5000) {
|
|
nes_debug(NES_DBG_PHY, "Init: serdes 0 not ready, status=%x\n", u32temp);
|
|
return 1;
|
|
}
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP0, 0x000bdef7);
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_DRIVE0, 0x9ce73000);
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_MODE0, 0x0ff00000);
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_SIGDET0, 0x00000000);
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_BYPASS0, 0x00000000);
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_LOOPBACK_CONTROL0, 0x00000000);
|
|
if (OneG_Mode)
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_EQ_CONTROL0, 0xf0182222);
|
|
else
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_EQ_CONTROL0, 0xf0042222);
|
|
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000000ff);
|
|
if (port_count > 1) {
|
|
/* init serdes 1 */
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, 0x00000048);
|
|
i = 0;
|
|
while (((u32temp = (nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS1)
|
|
& 0x0000000f)) != 0x0000000f) && (i++ < 5000))
|
|
mdelay(1);
|
|
if (i > 5000) {
|
|
printk("%s: Init: serdes 1 not ready, status=%x\n", __func__, u32temp);
|
|
/* return 1; */
|
|
}
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP1, 0x000bdef7);
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_DRIVE1, 0x9ce73000);
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_MODE1, 0x0ff00000);
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_SIGDET1, 0x00000000);
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_BYPASS1, 0x00000000);
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_LOOPBACK_CONTROL1, 0x00000000);
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_EQ_CONTROL1, 0xf0002222);
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL1, 0x000000ff);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_init_csr_ne020
|
|
* Initialize registers for ne020 hardware
|
|
*/
|
|
static void nes_init_csr_ne020(struct nes_device *nesdev, u8 hw_rev, u8 port_count)
|
|
{
|
|
u32 u32temp;
|
|
|
|
nes_debug(NES_DBG_INIT, "port_count=%d\n", port_count);
|
|
|
|
nes_write_indexed(nesdev, 0x000001E4, 0x00000007);
|
|
/* nes_write_indexed(nesdev, 0x000001E8, 0x000208C4); */
|
|
nes_write_indexed(nesdev, 0x000001E8, 0x00020874);
|
|
nes_write_indexed(nesdev, 0x000001D8, 0x00048002);
|
|
/* nes_write_indexed(nesdev, 0x000001D8, 0x0004B002); */
|
|
nes_write_indexed(nesdev, 0x000001FC, 0x00050005);
|
|
nes_write_indexed(nesdev, 0x00000600, 0x55555555);
|
|
nes_write_indexed(nesdev, 0x00000604, 0x55555555);
|
|
|
|
/* TODO: move these MAC register settings to NIC bringup */
|
|
nes_write_indexed(nesdev, 0x00002000, 0x00000001);
|
|
nes_write_indexed(nesdev, 0x00002004, 0x00000001);
|
|
nes_write_indexed(nesdev, 0x00002008, 0x0000FFFF);
|
|
nes_write_indexed(nesdev, 0x0000200C, 0x00000001);
|
|
nes_write_indexed(nesdev, 0x00002010, 0x000003c1);
|
|
nes_write_indexed(nesdev, 0x0000201C, 0x75345678);
|
|
if (port_count > 1) {
|
|
nes_write_indexed(nesdev, 0x00002200, 0x00000001);
|
|
nes_write_indexed(nesdev, 0x00002204, 0x00000001);
|
|
nes_write_indexed(nesdev, 0x00002208, 0x0000FFFF);
|
|
nes_write_indexed(nesdev, 0x0000220C, 0x00000001);
|
|
nes_write_indexed(nesdev, 0x00002210, 0x000003c1);
|
|
nes_write_indexed(nesdev, 0x0000221C, 0x75345678);
|
|
nes_write_indexed(nesdev, 0x00000908, 0x20000001);
|
|
}
|
|
if (port_count > 2) {
|
|
nes_write_indexed(nesdev, 0x00002400, 0x00000001);
|
|
nes_write_indexed(nesdev, 0x00002404, 0x00000001);
|
|
nes_write_indexed(nesdev, 0x00002408, 0x0000FFFF);
|
|
nes_write_indexed(nesdev, 0x0000240C, 0x00000001);
|
|
nes_write_indexed(nesdev, 0x00002410, 0x000003c1);
|
|
nes_write_indexed(nesdev, 0x0000241C, 0x75345678);
|
|
nes_write_indexed(nesdev, 0x00000910, 0x20000001);
|
|
|
|
nes_write_indexed(nesdev, 0x00002600, 0x00000001);
|
|
nes_write_indexed(nesdev, 0x00002604, 0x00000001);
|
|
nes_write_indexed(nesdev, 0x00002608, 0x0000FFFF);
|
|
nes_write_indexed(nesdev, 0x0000260C, 0x00000001);
|
|
nes_write_indexed(nesdev, 0x00002610, 0x000003c1);
|
|
nes_write_indexed(nesdev, 0x0000261C, 0x75345678);
|
|
nes_write_indexed(nesdev, 0x00000918, 0x20000001);
|
|
}
|
|
|
|
nes_write_indexed(nesdev, 0x00005000, 0x00018000);
|
|
/* nes_write_indexed(nesdev, 0x00005000, 0x00010000); */
|
|
nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1, (wqm_quanta << 1) |
|
|
0x00000001);
|
|
nes_write_indexed(nesdev, 0x00005008, 0x1F1F1F1F);
|
|
nes_write_indexed(nesdev, 0x00005010, 0x1F1F1F1F);
|
|
nes_write_indexed(nesdev, 0x00005018, 0x1F1F1F1F);
|
|
nes_write_indexed(nesdev, 0x00005020, 0x1F1F1F1F);
|
|
nes_write_indexed(nesdev, 0x00006090, 0xFFFFFFFF);
|
|
|
|
/* TODO: move this to code, get from EEPROM */
|
|
nes_write_indexed(nesdev, 0x00000900, 0x20000001);
|
|
nes_write_indexed(nesdev, 0x000060C0, 0x0000028e);
|
|
nes_write_indexed(nesdev, 0x000060C8, 0x00000020);
|
|
|
|
nes_write_indexed(nesdev, 0x000001EC, 0x7b2625a0);
|
|
/* nes_write_indexed(nesdev, 0x000001EC, 0x5f2625a0); */
|
|
|
|
if (hw_rev != NE020_REV) {
|
|
u32temp = nes_read_indexed(nesdev, 0x000008e8);
|
|
u32temp |= 0x80000000;
|
|
nes_write_indexed(nesdev, 0x000008e8, u32temp);
|
|
u32temp = nes_read_indexed(nesdev, 0x000021f8);
|
|
u32temp &= 0x7fffffff;
|
|
u32temp |= 0x7fff0010;
|
|
nes_write_indexed(nesdev, 0x000021f8, u32temp);
|
|
if (port_count > 1) {
|
|
u32temp = nes_read_indexed(nesdev, 0x000023f8);
|
|
u32temp &= 0x7fffffff;
|
|
u32temp |= 0x7fff0010;
|
|
nes_write_indexed(nesdev, 0x000023f8, u32temp);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_destroy_adapter - destroy the adapter structure
|
|
*/
|
|
void nes_destroy_adapter(struct nes_adapter *nesadapter)
|
|
{
|
|
struct nes_adapter *tmp_adapter;
|
|
|
|
list_for_each_entry(tmp_adapter, &nes_adapter_list, list) {
|
|
nes_debug(NES_DBG_SHUTDOWN, "Nes Adapter list entry = 0x%p.\n",
|
|
tmp_adapter);
|
|
}
|
|
|
|
nesadapter->ref_count--;
|
|
if (!nesadapter->ref_count) {
|
|
if (nesadapter->hw_rev == NE020_REV) {
|
|
del_timer(&nesadapter->mh_timer);
|
|
}
|
|
del_timer(&nesadapter->lc_timer);
|
|
|
|
list_del(&nesadapter->list);
|
|
kfree(nesadapter);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_init_cqp
|
|
*/
|
|
int nes_init_cqp(struct nes_device *nesdev)
|
|
{
|
|
struct nes_adapter *nesadapter = nesdev->nesadapter;
|
|
struct nes_hw_cqp_qp_context *cqp_qp_context;
|
|
struct nes_hw_cqp_wqe *cqp_wqe;
|
|
struct nes_hw_ceq *ceq;
|
|
struct nes_hw_ceq *nic_ceq;
|
|
struct nes_hw_aeq *aeq;
|
|
void *vmem;
|
|
dma_addr_t pmem;
|
|
u32 count=0;
|
|
u32 cqp_head;
|
|
u64 u64temp;
|
|
u32 u32temp;
|
|
|
|
/* allocate CQP memory */
|
|
/* Need to add max_cq to the aeq size once cq overflow checking is added back */
|
|
/* SQ is 512 byte aligned, others are 256 byte aligned */
|
|
nesdev->cqp_mem_size = 512 +
|
|
(sizeof(struct nes_hw_cqp_wqe) * NES_CQP_SQ_SIZE) +
|
|
(sizeof(struct nes_hw_cqe) * NES_CCQ_SIZE) +
|
|
max(((u32)sizeof(struct nes_hw_ceqe) * NES_CCEQ_SIZE), (u32)256) +
|
|
max(((u32)sizeof(struct nes_hw_ceqe) * NES_NIC_CEQ_SIZE), (u32)256) +
|
|
(sizeof(struct nes_hw_aeqe) * nesadapter->max_qp) +
|
|
sizeof(struct nes_hw_cqp_qp_context);
|
|
|
|
nesdev->cqp_vbase = pci_alloc_consistent(nesdev->pcidev, nesdev->cqp_mem_size,
|
|
&nesdev->cqp_pbase);
|
|
if (!nesdev->cqp_vbase) {
|
|
nes_debug(NES_DBG_INIT, "Unable to allocate memory for host descriptor rings\n");
|
|
return -ENOMEM;
|
|
}
|
|
memset(nesdev->cqp_vbase, 0, nesdev->cqp_mem_size);
|
|
|
|
/* Allocate a twice the number of CQP requests as the SQ size */
|
|
nesdev->nes_cqp_requests = kzalloc(sizeof(struct nes_cqp_request) *
|
|
2 * NES_CQP_SQ_SIZE, GFP_KERNEL);
|
|
if (nesdev->nes_cqp_requests == NULL) {
|
|
nes_debug(NES_DBG_INIT, "Unable to allocate memory CQP request entries.\n");
|
|
pci_free_consistent(nesdev->pcidev, nesdev->cqp_mem_size, nesdev->cqp.sq_vbase,
|
|
nesdev->cqp.sq_pbase);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
nes_debug(NES_DBG_INIT, "Allocated CQP structures at %p (phys = %016lX), size = %u.\n",
|
|
nesdev->cqp_vbase, (unsigned long)nesdev->cqp_pbase, nesdev->cqp_mem_size);
|
|
|
|
spin_lock_init(&nesdev->cqp.lock);
|
|
init_waitqueue_head(&nesdev->cqp.waitq);
|
|
|
|
/* Setup Various Structures */
|
|
vmem = (void *)(((unsigned long)nesdev->cqp_vbase + (512 - 1)) &
|
|
~(unsigned long)(512 - 1));
|
|
pmem = (dma_addr_t)(((unsigned long long)nesdev->cqp_pbase + (512 - 1)) &
|
|
~(unsigned long long)(512 - 1));
|
|
|
|
nesdev->cqp.sq_vbase = vmem;
|
|
nesdev->cqp.sq_pbase = pmem;
|
|
nesdev->cqp.sq_size = NES_CQP_SQ_SIZE;
|
|
nesdev->cqp.sq_head = 0;
|
|
nesdev->cqp.sq_tail = 0;
|
|
nesdev->cqp.qp_id = PCI_FUNC(nesdev->pcidev->devfn);
|
|
|
|
vmem += (sizeof(struct nes_hw_cqp_wqe) * nesdev->cqp.sq_size);
|
|
pmem += (sizeof(struct nes_hw_cqp_wqe) * nesdev->cqp.sq_size);
|
|
|
|
nesdev->ccq.cq_vbase = vmem;
|
|
nesdev->ccq.cq_pbase = pmem;
|
|
nesdev->ccq.cq_size = NES_CCQ_SIZE;
|
|
nesdev->ccq.cq_head = 0;
|
|
nesdev->ccq.ce_handler = nes_cqp_ce_handler;
|
|
nesdev->ccq.cq_number = PCI_FUNC(nesdev->pcidev->devfn);
|
|
|
|
vmem += (sizeof(struct nes_hw_cqe) * nesdev->ccq.cq_size);
|
|
pmem += (sizeof(struct nes_hw_cqe) * nesdev->ccq.cq_size);
|
|
|
|
nesdev->ceq_index = PCI_FUNC(nesdev->pcidev->devfn);
|
|
ceq = &nesadapter->ceq[nesdev->ceq_index];
|
|
ceq->ceq_vbase = vmem;
|
|
ceq->ceq_pbase = pmem;
|
|
ceq->ceq_size = NES_CCEQ_SIZE;
|
|
ceq->ceq_head = 0;
|
|
|
|
vmem += max(((u32)sizeof(struct nes_hw_ceqe) * ceq->ceq_size), (u32)256);
|
|
pmem += max(((u32)sizeof(struct nes_hw_ceqe) * ceq->ceq_size), (u32)256);
|
|
|
|
nesdev->nic_ceq_index = PCI_FUNC(nesdev->pcidev->devfn) + 8;
|
|
nic_ceq = &nesadapter->ceq[nesdev->nic_ceq_index];
|
|
nic_ceq->ceq_vbase = vmem;
|
|
nic_ceq->ceq_pbase = pmem;
|
|
nic_ceq->ceq_size = NES_NIC_CEQ_SIZE;
|
|
nic_ceq->ceq_head = 0;
|
|
|
|
vmem += max(((u32)sizeof(struct nes_hw_ceqe) * nic_ceq->ceq_size), (u32)256);
|
|
pmem += max(((u32)sizeof(struct nes_hw_ceqe) * nic_ceq->ceq_size), (u32)256);
|
|
|
|
aeq = &nesadapter->aeq[PCI_FUNC(nesdev->pcidev->devfn)];
|
|
aeq->aeq_vbase = vmem;
|
|
aeq->aeq_pbase = pmem;
|
|
aeq->aeq_size = nesadapter->max_qp;
|
|
aeq->aeq_head = 0;
|
|
|
|
/* Setup QP Context */
|
|
vmem += (sizeof(struct nes_hw_aeqe) * aeq->aeq_size);
|
|
pmem += (sizeof(struct nes_hw_aeqe) * aeq->aeq_size);
|
|
|
|
cqp_qp_context = vmem;
|
|
cqp_qp_context->context_words[0] =
|
|
cpu_to_le32((PCI_FUNC(nesdev->pcidev->devfn) << 12) + (2 << 10));
|
|
cqp_qp_context->context_words[1] = 0;
|
|
cqp_qp_context->context_words[2] = cpu_to_le32((u32)nesdev->cqp.sq_pbase);
|
|
cqp_qp_context->context_words[3] = cpu_to_le32(((u64)nesdev->cqp.sq_pbase) >> 32);
|
|
|
|
|
|
/* Write the address to Create CQP */
|
|
if ((sizeof(dma_addr_t) > 4)) {
|
|
nes_write_indexed(nesdev,
|
|
NES_IDX_CREATE_CQP_HIGH + (PCI_FUNC(nesdev->pcidev->devfn) * 8),
|
|
((u64)pmem) >> 32);
|
|
} else {
|
|
nes_write_indexed(nesdev,
|
|
NES_IDX_CREATE_CQP_HIGH + (PCI_FUNC(nesdev->pcidev->devfn) * 8), 0);
|
|
}
|
|
nes_write_indexed(nesdev,
|
|
NES_IDX_CREATE_CQP_LOW + (PCI_FUNC(nesdev->pcidev->devfn) * 8),
|
|
(u32)pmem);
|
|
|
|
INIT_LIST_HEAD(&nesdev->cqp_avail_reqs);
|
|
INIT_LIST_HEAD(&nesdev->cqp_pending_reqs);
|
|
|
|
for (count = 0; count < 2*NES_CQP_SQ_SIZE; count++) {
|
|
init_waitqueue_head(&nesdev->nes_cqp_requests[count].waitq);
|
|
list_add_tail(&nesdev->nes_cqp_requests[count].list, &nesdev->cqp_avail_reqs);
|
|
}
|
|
|
|
/* Write Create CCQ WQE */
|
|
cqp_head = nesdev->cqp.sq_head++;
|
|
cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
|
|
nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
|
|
set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
|
|
(NES_CQP_CREATE_CQ | NES_CQP_CQ_CEQ_VALID |
|
|
NES_CQP_CQ_CHK_OVERFLOW | ((u32)nesdev->ccq.cq_size << 16)));
|
|
set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX,
|
|
(nesdev->ccq.cq_number |
|
|
((u32)nesdev->ceq_index << 16)));
|
|
u64temp = (u64)nesdev->ccq.cq_pbase;
|
|
set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp);
|
|
cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] = 0;
|
|
u64temp = (unsigned long)&nesdev->ccq;
|
|
cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_LOW_IDX] =
|
|
cpu_to_le32((u32)(u64temp >> 1));
|
|
cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] =
|
|
cpu_to_le32(((u32)((u64temp) >> 33)) & 0x7FFFFFFF);
|
|
cqp_wqe->wqe_words[NES_CQP_CQ_WQE_DOORBELL_INDEX_HIGH_IDX] = 0;
|
|
|
|
/* Write Create CEQ WQE */
|
|
cqp_head = nesdev->cqp.sq_head++;
|
|
cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
|
|
nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
|
|
set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
|
|
(NES_CQP_CREATE_CEQ + ((u32)nesdev->ceq_index << 8)));
|
|
set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_CEQ_WQE_ELEMENT_COUNT_IDX, ceq->ceq_size);
|
|
u64temp = (u64)ceq->ceq_pbase;
|
|
set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp);
|
|
|
|
/* Write Create AEQ WQE */
|
|
cqp_head = nesdev->cqp.sq_head++;
|
|
cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
|
|
nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
|
|
set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
|
|
(NES_CQP_CREATE_AEQ + ((u32)PCI_FUNC(nesdev->pcidev->devfn) << 8)));
|
|
set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_AEQ_WQE_ELEMENT_COUNT_IDX, aeq->aeq_size);
|
|
u64temp = (u64)aeq->aeq_pbase;
|
|
set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp);
|
|
|
|
/* Write Create NIC CEQ WQE */
|
|
cqp_head = nesdev->cqp.sq_head++;
|
|
cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
|
|
nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
|
|
set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
|
|
(NES_CQP_CREATE_CEQ + ((u32)nesdev->nic_ceq_index << 8)));
|
|
set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_CEQ_WQE_ELEMENT_COUNT_IDX, nic_ceq->ceq_size);
|
|
u64temp = (u64)nic_ceq->ceq_pbase;
|
|
set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp);
|
|
|
|
/* Poll until CCQP done */
|
|
count = 0;
|
|
do {
|
|
if (count++ > 1000) {
|
|
printk(KERN_ERR PFX "Error creating CQP\n");
|
|
pci_free_consistent(nesdev->pcidev, nesdev->cqp_mem_size,
|
|
nesdev->cqp_vbase, nesdev->cqp_pbase);
|
|
return -1;
|
|
}
|
|
udelay(10);
|
|
} while (!(nes_read_indexed(nesdev,
|
|
NES_IDX_QP_CONTROL + (PCI_FUNC(nesdev->pcidev->devfn) * 8)) & (1 << 8)));
|
|
|
|
nes_debug(NES_DBG_INIT, "CQP Status = 0x%08X\n", nes_read_indexed(nesdev,
|
|
NES_IDX_QP_CONTROL+(PCI_FUNC(nesdev->pcidev->devfn)*8)));
|
|
|
|
u32temp = 0x04800000;
|
|
nes_write32(nesdev->regs+NES_WQE_ALLOC, u32temp | nesdev->cqp.qp_id);
|
|
|
|
/* wait for the CCQ, CEQ, and AEQ to get created */
|
|
count = 0;
|
|
do {
|
|
if (count++ > 1000) {
|
|
printk(KERN_ERR PFX "Error creating CCQ, CEQ, and AEQ\n");
|
|
pci_free_consistent(nesdev->pcidev, nesdev->cqp_mem_size,
|
|
nesdev->cqp_vbase, nesdev->cqp_pbase);
|
|
return -1;
|
|
}
|
|
udelay(10);
|
|
} while (((nes_read_indexed(nesdev,
|
|
NES_IDX_QP_CONTROL+(PCI_FUNC(nesdev->pcidev->devfn)*8)) & (15<<8)) != (15<<8)));
|
|
|
|
/* dump the QP status value */
|
|
nes_debug(NES_DBG_INIT, "QP Status = 0x%08X\n", nes_read_indexed(nesdev,
|
|
NES_IDX_QP_CONTROL+(PCI_FUNC(nesdev->pcidev->devfn)*8)));
|
|
|
|
nesdev->cqp.sq_tail++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_destroy_cqp
|
|
*/
|
|
int nes_destroy_cqp(struct nes_device *nesdev)
|
|
{
|
|
struct nes_hw_cqp_wqe *cqp_wqe;
|
|
u32 count = 0;
|
|
u32 cqp_head;
|
|
unsigned long flags;
|
|
|
|
do {
|
|
if (count++ > 1000)
|
|
break;
|
|
udelay(10);
|
|
} while (!(nesdev->cqp.sq_head == nesdev->cqp.sq_tail));
|
|
|
|
/* Reset CCQ */
|
|
nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_RESET |
|
|
nesdev->ccq.cq_number);
|
|
|
|
/* Disable device interrupts */
|
|
nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);
|
|
|
|
spin_lock_irqsave(&nesdev->cqp.lock, flags);
|
|
|
|
/* Destroy the AEQ */
|
|
cqp_head = nesdev->cqp.sq_head++;
|
|
nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
|
|
cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_DESTROY_AEQ |
|
|
((u32)PCI_FUNC(nesdev->pcidev->devfn) << 8));
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_COMP_CTX_HIGH_IDX] = 0;
|
|
|
|
/* Destroy the NIC CEQ */
|
|
cqp_head = nesdev->cqp.sq_head++;
|
|
nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
|
|
cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_DESTROY_CEQ |
|
|
((u32)nesdev->nic_ceq_index << 8));
|
|
|
|
/* Destroy the CEQ */
|
|
cqp_head = nesdev->cqp.sq_head++;
|
|
nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
|
|
cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_DESTROY_CEQ |
|
|
(nesdev->ceq_index << 8));
|
|
|
|
/* Destroy the CCQ */
|
|
cqp_head = nesdev->cqp.sq_head++;
|
|
nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
|
|
cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_DESTROY_CQ);
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(nesdev->ccq.cq_number |
|
|
((u32)nesdev->ceq_index << 16));
|
|
|
|
/* Destroy CQP */
|
|
cqp_head = nesdev->cqp.sq_head++;
|
|
nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
|
|
cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_DESTROY_QP |
|
|
NES_CQP_QP_TYPE_CQP);
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(nesdev->cqp.qp_id);
|
|
|
|
barrier();
|
|
/* Ring doorbell (5 WQEs) */
|
|
nes_write32(nesdev->regs+NES_WQE_ALLOC, 0x05800000 | nesdev->cqp.qp_id);
|
|
|
|
spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
|
|
|
|
/* wait for the CCQ, CEQ, and AEQ to get destroyed */
|
|
count = 0;
|
|
do {
|
|
if (count++ > 1000) {
|
|
printk(KERN_ERR PFX "Function%d: Error destroying CCQ, CEQ, and AEQ\n",
|
|
PCI_FUNC(nesdev->pcidev->devfn));
|
|
break;
|
|
}
|
|
udelay(10);
|
|
} while (((nes_read_indexed(nesdev,
|
|
NES_IDX_QP_CONTROL + (PCI_FUNC(nesdev->pcidev->devfn)*8)) & (15 << 8)) != 0));
|
|
|
|
/* dump the QP status value */
|
|
nes_debug(NES_DBG_SHUTDOWN, "Function%d: QP Status = 0x%08X\n",
|
|
PCI_FUNC(nesdev->pcidev->devfn),
|
|
nes_read_indexed(nesdev,
|
|
NES_IDX_QP_CONTROL+(PCI_FUNC(nesdev->pcidev->devfn)*8)));
|
|
|
|
kfree(nesdev->nes_cqp_requests);
|
|
|
|
/* Free the control structures */
|
|
pci_free_consistent(nesdev->pcidev, nesdev->cqp_mem_size, nesdev->cqp.sq_vbase,
|
|
nesdev->cqp.sq_pbase);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_init_1g_phy
|
|
*/
|
|
static int nes_init_1g_phy(struct nes_device *nesdev, u8 phy_type, u8 phy_index)
|
|
{
|
|
u32 counter = 0;
|
|
u16 phy_data;
|
|
int ret = 0;
|
|
|
|
nes_read_1G_phy_reg(nesdev, 1, phy_index, &phy_data);
|
|
nes_write_1G_phy_reg(nesdev, 23, phy_index, 0xb000);
|
|
|
|
/* Reset the PHY */
|
|
nes_write_1G_phy_reg(nesdev, 0, phy_index, 0x8000);
|
|
udelay(100);
|
|
counter = 0;
|
|
do {
|
|
nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
|
|
if (counter++ > 100) {
|
|
ret = -1;
|
|
break;
|
|
}
|
|
} while (phy_data & 0x8000);
|
|
|
|
/* Setting no phy loopback */
|
|
phy_data &= 0xbfff;
|
|
phy_data |= 0x1140;
|
|
nes_write_1G_phy_reg(nesdev, 0, phy_index, phy_data);
|
|
nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
|
|
nes_read_1G_phy_reg(nesdev, 0x17, phy_index, &phy_data);
|
|
nes_read_1G_phy_reg(nesdev, 0x1e, phy_index, &phy_data);
|
|
|
|
/* Setting the interrupt mask */
|
|
nes_read_1G_phy_reg(nesdev, 0x19, phy_index, &phy_data);
|
|
nes_write_1G_phy_reg(nesdev, 0x19, phy_index, 0xffee);
|
|
nes_read_1G_phy_reg(nesdev, 0x19, phy_index, &phy_data);
|
|
|
|
/* turning on flow control */
|
|
nes_read_1G_phy_reg(nesdev, 4, phy_index, &phy_data);
|
|
nes_write_1G_phy_reg(nesdev, 4, phy_index, (phy_data & ~(0x03E0)) | 0xc00);
|
|
nes_read_1G_phy_reg(nesdev, 4, phy_index, &phy_data);
|
|
|
|
/* Clear Half duplex */
|
|
nes_read_1G_phy_reg(nesdev, 9, phy_index, &phy_data);
|
|
nes_write_1G_phy_reg(nesdev, 9, phy_index, phy_data & ~(0x0100));
|
|
nes_read_1G_phy_reg(nesdev, 9, phy_index, &phy_data);
|
|
|
|
nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
|
|
nes_write_1G_phy_reg(nesdev, 0, phy_index, phy_data | 0x0300);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_init_2025_phy
|
|
*/
|
|
static int nes_init_2025_phy(struct nes_device *nesdev, u8 phy_type, u8 phy_index)
|
|
{
|
|
u32 temp_phy_data = 0;
|
|
u32 temp_phy_data2 = 0;
|
|
u32 counter = 0;
|
|
u32 sds;
|
|
u32 mac_index = nesdev->mac_index;
|
|
int ret = 0;
|
|
unsigned int first_attempt = 1;
|
|
|
|
/* Check firmware heartbeat */
|
|
nes_read_10G_phy_reg(nesdev, phy_index, 0x3, 0xd7ee);
|
|
temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
|
|
udelay(1500);
|
|
nes_read_10G_phy_reg(nesdev, phy_index, 0x3, 0xd7ee);
|
|
temp_phy_data2 = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
|
|
|
|
if (temp_phy_data != temp_phy_data2) {
|
|
nes_read_10G_phy_reg(nesdev, phy_index, 0x3, 0xd7fd);
|
|
temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
|
|
if ((temp_phy_data & 0xff) > 0x20)
|
|
return 0;
|
|
printk(PFX "Reinitialize external PHY\n");
|
|
}
|
|
|
|
/* no heartbeat, configure the PHY */
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0x0000, 0x8000);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc300, 0x0000);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc316, 0x000A);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc318, 0x0052);
|
|
|
|
switch (phy_type) {
|
|
case NES_PHY_TYPE_ARGUS:
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc316, 0x000A);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc318, 0x0052);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc302, 0x000C);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc319, 0x0008);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0027, 0x0001);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc31a, 0x0098);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0026, 0x0E00);
|
|
|
|
/* setup LEDs */
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd006, 0x0007);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd007, 0x000A);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd008, 0x0009);
|
|
break;
|
|
|
|
case NES_PHY_TYPE_SFP_D:
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc316, 0x000A);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc318, 0x0052);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc302, 0x0004);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc319, 0x0038);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0027, 0x0013);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc31a, 0x0098);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0026, 0x0E00);
|
|
|
|
/* setup LEDs */
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd006, 0x0007);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd007, 0x000A);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd008, 0x0009);
|
|
break;
|
|
|
|
case NES_PHY_TYPE_KR:
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc316, 0x000A);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc318, 0x0052);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc302, 0x000C);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc319, 0x0010);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0027, 0x0013);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc31a, 0x0080);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0026, 0x0E00);
|
|
|
|
/* setup LEDs */
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd006, 0x000B);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd007, 0x0003);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd008, 0x0004);
|
|
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0022, 0x406D);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0023, 0x0020);
|
|
break;
|
|
}
|
|
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0028, 0xA528);
|
|
|
|
/* Bring PHY out of reset */
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc300, 0x0002);
|
|
|
|
/* Check for heartbeat */
|
|
counter = 0;
|
|
mdelay(690);
|
|
nes_read_10G_phy_reg(nesdev, phy_index, 0x3, 0xd7ee);
|
|
temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
|
|
do {
|
|
if (counter++ > 150) {
|
|
printk(PFX "No PHY heartbeat\n");
|
|
break;
|
|
}
|
|
mdelay(1);
|
|
nes_read_10G_phy_reg(nesdev, phy_index, 0x3, 0xd7ee);
|
|
temp_phy_data2 = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
|
|
} while ((temp_phy_data2 == temp_phy_data));
|
|
|
|
/* wait for tracking */
|
|
counter = 0;
|
|
do {
|
|
nes_read_10G_phy_reg(nesdev, phy_index, 0x3, 0xd7fd);
|
|
temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
|
|
if (counter++ > 300) {
|
|
if (((temp_phy_data & 0xff) == 0x0) && first_attempt) {
|
|
first_attempt = 0;
|
|
counter = 0;
|
|
/* reset AMCC PHY and try again */
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0xe854, 0x00c0);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0xe854, 0x0040);
|
|
continue;
|
|
} else {
|
|
ret = 1;
|
|
break;
|
|
}
|
|
}
|
|
mdelay(10);
|
|
} while ((temp_phy_data & 0xff) < 0x30);
|
|
|
|
/* setup signal integrity */
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd003, 0x0000);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xF00D, 0x00FE);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xF00E, 0x0032);
|
|
if (phy_type == NES_PHY_TYPE_KR) {
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xF00F, 0x000C);
|
|
} else {
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xF00F, 0x0002);
|
|
nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc314, 0x0063);
|
|
}
|
|
|
|
/* reset serdes */
|
|
sds = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0 + mac_index * 0x200);
|
|
sds |= 0x1;
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0 + mac_index * 0x200, sds);
|
|
sds &= 0xfffffffe;
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0 + mac_index * 0x200, sds);
|
|
|
|
counter = 0;
|
|
while (((nes_read32(nesdev->regs + NES_SOFTWARE_RESET) & 0x00000040) != 0x00000040)
|
|
&& (counter++ < 5000))
|
|
;
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_init_phy
|
|
*/
|
|
int nes_init_phy(struct nes_device *nesdev)
|
|
{
|
|
struct nes_adapter *nesadapter = nesdev->nesadapter;
|
|
u32 mac_index = nesdev->mac_index;
|
|
u32 tx_config = 0;
|
|
unsigned long flags;
|
|
u8 phy_type = nesadapter->phy_type[mac_index];
|
|
u8 phy_index = nesadapter->phy_index[mac_index];
|
|
int ret = 0;
|
|
|
|
tx_config = nes_read_indexed(nesdev, NES_IDX_MAC_TX_CONFIG);
|
|
if (phy_type == NES_PHY_TYPE_1G) {
|
|
/* setup 1G MDIO operation */
|
|
tx_config &= 0xFFFFFFE3;
|
|
tx_config |= 0x04;
|
|
} else {
|
|
/* setup 10G MDIO operation */
|
|
tx_config &= 0xFFFFFFE3;
|
|
tx_config |= 0x15;
|
|
}
|
|
nes_write_indexed(nesdev, NES_IDX_MAC_TX_CONFIG, tx_config);
|
|
|
|
spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags);
|
|
|
|
switch (phy_type) {
|
|
case NES_PHY_TYPE_1G:
|
|
ret = nes_init_1g_phy(nesdev, phy_type, phy_index);
|
|
break;
|
|
case NES_PHY_TYPE_ARGUS:
|
|
case NES_PHY_TYPE_SFP_D:
|
|
case NES_PHY_TYPE_KR:
|
|
ret = nes_init_2025_phy(nesdev, phy_type, phy_index);
|
|
break;
|
|
}
|
|
|
|
spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_replenish_nic_rq
|
|
*/
|
|
static void nes_replenish_nic_rq(struct nes_vnic *nesvnic)
|
|
{
|
|
unsigned long flags;
|
|
dma_addr_t bus_address;
|
|
struct sk_buff *skb;
|
|
struct nes_hw_nic_rq_wqe *nic_rqe;
|
|
struct nes_hw_nic *nesnic;
|
|
struct nes_device *nesdev;
|
|
u32 rx_wqes_posted = 0;
|
|
|
|
nesnic = &nesvnic->nic;
|
|
nesdev = nesvnic->nesdev;
|
|
spin_lock_irqsave(&nesnic->rq_lock, flags);
|
|
if (nesnic->replenishing_rq !=0) {
|
|
if (((nesnic->rq_size-1) == atomic_read(&nesvnic->rx_skbs_needed)) &&
|
|
(atomic_read(&nesvnic->rx_skb_timer_running) == 0)) {
|
|
atomic_set(&nesvnic->rx_skb_timer_running, 1);
|
|
spin_unlock_irqrestore(&nesnic->rq_lock, flags);
|
|
nesvnic->rq_wqes_timer.expires = jiffies + (HZ/2); /* 1/2 second */
|
|
add_timer(&nesvnic->rq_wqes_timer);
|
|
} else
|
|
spin_unlock_irqrestore(&nesnic->rq_lock, flags);
|
|
return;
|
|
}
|
|
nesnic->replenishing_rq = 1;
|
|
spin_unlock_irqrestore(&nesnic->rq_lock, flags);
|
|
do {
|
|
skb = dev_alloc_skb(nesvnic->max_frame_size);
|
|
if (skb) {
|
|
skb->dev = nesvnic->netdev;
|
|
|
|
bus_address = pci_map_single(nesdev->pcidev,
|
|
skb->data, nesvnic->max_frame_size, PCI_DMA_FROMDEVICE);
|
|
|
|
nic_rqe = &nesnic->rq_vbase[nesvnic->nic.rq_head];
|
|
nic_rqe->wqe_words[NES_NIC_RQ_WQE_LENGTH_1_0_IDX] =
|
|
cpu_to_le32(nesvnic->max_frame_size);
|
|
nic_rqe->wqe_words[NES_NIC_RQ_WQE_LENGTH_3_2_IDX] = 0;
|
|
nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_LOW_IDX] =
|
|
cpu_to_le32((u32)bus_address);
|
|
nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_HIGH_IDX] =
|
|
cpu_to_le32((u32)((u64)bus_address >> 32));
|
|
nesnic->rx_skb[nesnic->rq_head] = skb;
|
|
nesnic->rq_head++;
|
|
nesnic->rq_head &= nesnic->rq_size - 1;
|
|
atomic_dec(&nesvnic->rx_skbs_needed);
|
|
barrier();
|
|
if (++rx_wqes_posted == 255) {
|
|
nes_write32(nesdev->regs+NES_WQE_ALLOC, (rx_wqes_posted << 24) | nesnic->qp_id);
|
|
rx_wqes_posted = 0;
|
|
}
|
|
} else {
|
|
spin_lock_irqsave(&nesnic->rq_lock, flags);
|
|
if (((nesnic->rq_size-1) == atomic_read(&nesvnic->rx_skbs_needed)) &&
|
|
(atomic_read(&nesvnic->rx_skb_timer_running) == 0)) {
|
|
atomic_set(&nesvnic->rx_skb_timer_running, 1);
|
|
spin_unlock_irqrestore(&nesnic->rq_lock, flags);
|
|
nesvnic->rq_wqes_timer.expires = jiffies + (HZ/2); /* 1/2 second */
|
|
add_timer(&nesvnic->rq_wqes_timer);
|
|
} else
|
|
spin_unlock_irqrestore(&nesnic->rq_lock, flags);
|
|
break;
|
|
}
|
|
} while (atomic_read(&nesvnic->rx_skbs_needed));
|
|
barrier();
|
|
if (rx_wqes_posted)
|
|
nes_write32(nesdev->regs+NES_WQE_ALLOC, (rx_wqes_posted << 24) | nesnic->qp_id);
|
|
nesnic->replenishing_rq = 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_rq_wqes_timeout
|
|
*/
|
|
static void nes_rq_wqes_timeout(unsigned long parm)
|
|
{
|
|
struct nes_vnic *nesvnic = (struct nes_vnic *)parm;
|
|
printk("%s: Timer fired.\n", __func__);
|
|
atomic_set(&nesvnic->rx_skb_timer_running, 0);
|
|
if (atomic_read(&nesvnic->rx_skbs_needed))
|
|
nes_replenish_nic_rq(nesvnic);
|
|
}
|
|
|
|
|
|
static int nes_lro_get_skb_hdr(struct sk_buff *skb, void **iphdr,
|
|
void **tcph, u64 *hdr_flags, void *priv)
|
|
{
|
|
unsigned int ip_len;
|
|
struct iphdr *iph;
|
|
skb_reset_network_header(skb);
|
|
iph = ip_hdr(skb);
|
|
if (iph->protocol != IPPROTO_TCP)
|
|
return -1;
|
|
ip_len = ip_hdrlen(skb);
|
|
skb_set_transport_header(skb, ip_len);
|
|
*tcph = tcp_hdr(skb);
|
|
|
|
*hdr_flags = LRO_IPV4 | LRO_TCP;
|
|
*iphdr = iph;
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_init_nic_qp
|
|
*/
|
|
int nes_init_nic_qp(struct nes_device *nesdev, struct net_device *netdev)
|
|
{
|
|
struct nes_hw_cqp_wqe *cqp_wqe;
|
|
struct nes_hw_nic_sq_wqe *nic_sqe;
|
|
struct nes_hw_nic_qp_context *nic_context;
|
|
struct sk_buff *skb;
|
|
struct nes_hw_nic_rq_wqe *nic_rqe;
|
|
struct nes_vnic *nesvnic = netdev_priv(netdev);
|
|
unsigned long flags;
|
|
void *vmem;
|
|
dma_addr_t pmem;
|
|
u64 u64temp;
|
|
int ret;
|
|
u32 cqp_head;
|
|
u32 counter;
|
|
u32 wqe_count;
|
|
u8 jumbomode=0;
|
|
|
|
/* Allocate fragment, SQ, RQ, and CQ; Reuse CEQ based on the PCI function */
|
|
nesvnic->nic_mem_size = 256 +
|
|
(NES_NIC_WQ_SIZE * sizeof(struct nes_first_frag)) +
|
|
(NES_NIC_WQ_SIZE * sizeof(struct nes_hw_nic_sq_wqe)) +
|
|
(NES_NIC_WQ_SIZE * sizeof(struct nes_hw_nic_rq_wqe)) +
|
|
(NES_NIC_WQ_SIZE * 2 * sizeof(struct nes_hw_nic_cqe)) +
|
|
sizeof(struct nes_hw_nic_qp_context);
|
|
|
|
nesvnic->nic_vbase = pci_alloc_consistent(nesdev->pcidev, nesvnic->nic_mem_size,
|
|
&nesvnic->nic_pbase);
|
|
if (!nesvnic->nic_vbase) {
|
|
nes_debug(NES_DBG_INIT, "Unable to allocate memory for NIC host descriptor rings\n");
|
|
return -ENOMEM;
|
|
}
|
|
memset(nesvnic->nic_vbase, 0, nesvnic->nic_mem_size);
|
|
nes_debug(NES_DBG_INIT, "Allocated NIC QP structures at %p (phys = %016lX), size = %u.\n",
|
|
nesvnic->nic_vbase, (unsigned long)nesvnic->nic_pbase, nesvnic->nic_mem_size);
|
|
|
|
vmem = (void *)(((unsigned long)nesvnic->nic_vbase + (256 - 1)) &
|
|
~(unsigned long)(256 - 1));
|
|
pmem = (dma_addr_t)(((unsigned long long)nesvnic->nic_pbase + (256 - 1)) &
|
|
~(unsigned long long)(256 - 1));
|
|
|
|
/* Setup the first Fragment buffers */
|
|
nesvnic->nic.first_frag_vbase = vmem;
|
|
|
|
for (counter = 0; counter < NES_NIC_WQ_SIZE; counter++) {
|
|
nesvnic->nic.frag_paddr[counter] = pmem;
|
|
pmem += sizeof(struct nes_first_frag);
|
|
}
|
|
|
|
/* setup the SQ */
|
|
vmem += (NES_NIC_WQ_SIZE * sizeof(struct nes_first_frag));
|
|
|
|
nesvnic->nic.sq_vbase = (void *)vmem;
|
|
nesvnic->nic.sq_pbase = pmem;
|
|
nesvnic->nic.sq_head = 0;
|
|
nesvnic->nic.sq_tail = 0;
|
|
nesvnic->nic.sq_size = NES_NIC_WQ_SIZE;
|
|
for (counter = 0; counter < NES_NIC_WQ_SIZE; counter++) {
|
|
nic_sqe = &nesvnic->nic.sq_vbase[counter];
|
|
nic_sqe->wqe_words[NES_NIC_SQ_WQE_MISC_IDX] =
|
|
cpu_to_le32(NES_NIC_SQ_WQE_DISABLE_CHKSUM |
|
|
NES_NIC_SQ_WQE_COMPLETION);
|
|
nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_0_TAG_IDX] =
|
|
cpu_to_le32((u32)NES_FIRST_FRAG_SIZE << 16);
|
|
nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_LOW_IDX] =
|
|
cpu_to_le32((u32)nesvnic->nic.frag_paddr[counter]);
|
|
nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_HIGH_IDX] =
|
|
cpu_to_le32((u32)((u64)nesvnic->nic.frag_paddr[counter] >> 32));
|
|
}
|
|
|
|
nesvnic->get_cqp_request = nes_get_cqp_request;
|
|
nesvnic->post_cqp_request = nes_post_cqp_request;
|
|
nesvnic->mcrq_mcast_filter = NULL;
|
|
|
|
spin_lock_init(&nesvnic->nic.rq_lock);
|
|
|
|
/* setup the RQ */
|
|
vmem += (NES_NIC_WQ_SIZE * sizeof(struct nes_hw_nic_sq_wqe));
|
|
pmem += (NES_NIC_WQ_SIZE * sizeof(struct nes_hw_nic_sq_wqe));
|
|
|
|
|
|
nesvnic->nic.rq_vbase = vmem;
|
|
nesvnic->nic.rq_pbase = pmem;
|
|
nesvnic->nic.rq_head = 0;
|
|
nesvnic->nic.rq_tail = 0;
|
|
nesvnic->nic.rq_size = NES_NIC_WQ_SIZE;
|
|
|
|
/* setup the CQ */
|
|
vmem += (NES_NIC_WQ_SIZE * sizeof(struct nes_hw_nic_rq_wqe));
|
|
pmem += (NES_NIC_WQ_SIZE * sizeof(struct nes_hw_nic_rq_wqe));
|
|
|
|
if (nesdev->nesadapter->netdev_count > 2)
|
|
nesvnic->mcrq_qp_id = nesvnic->nic_index + 32;
|
|
else
|
|
nesvnic->mcrq_qp_id = nesvnic->nic.qp_id + 4;
|
|
|
|
nesvnic->nic_cq.cq_vbase = vmem;
|
|
nesvnic->nic_cq.cq_pbase = pmem;
|
|
nesvnic->nic_cq.cq_head = 0;
|
|
nesvnic->nic_cq.cq_size = NES_NIC_WQ_SIZE * 2;
|
|
|
|
nesvnic->nic_cq.ce_handler = nes_nic_napi_ce_handler;
|
|
|
|
/* Send CreateCQ request to CQP */
|
|
spin_lock_irqsave(&nesdev->cqp.lock, flags);
|
|
cqp_head = nesdev->cqp.sq_head;
|
|
|
|
cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
|
|
nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
|
|
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(
|
|
NES_CQP_CREATE_CQ | NES_CQP_CQ_CEQ_VALID |
|
|
((u32)nesvnic->nic_cq.cq_size << 16));
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(
|
|
nesvnic->nic_cq.cq_number | ((u32)nesdev->nic_ceq_index << 16));
|
|
u64temp = (u64)nesvnic->nic_cq.cq_pbase;
|
|
set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp);
|
|
cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] = 0;
|
|
u64temp = (unsigned long)&nesvnic->nic_cq;
|
|
cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_LOW_IDX] = cpu_to_le32((u32)(u64temp >> 1));
|
|
cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] =
|
|
cpu_to_le32(((u32)((u64temp) >> 33)) & 0x7FFFFFFF);
|
|
cqp_wqe->wqe_words[NES_CQP_CQ_WQE_DOORBELL_INDEX_HIGH_IDX] = 0;
|
|
if (++cqp_head >= nesdev->cqp.sq_size)
|
|
cqp_head = 0;
|
|
cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
|
|
nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
|
|
|
|
/* Send CreateQP request to CQP */
|
|
nic_context = (void *)(&nesvnic->nic_cq.cq_vbase[nesvnic->nic_cq.cq_size]);
|
|
nic_context->context_words[NES_NIC_CTX_MISC_IDX] =
|
|
cpu_to_le32((u32)NES_NIC_CTX_SIZE |
|
|
((u32)PCI_FUNC(nesdev->pcidev->devfn) << 12));
|
|
nes_debug(NES_DBG_INIT, "RX_WINDOW_BUFFER_PAGE_TABLE_SIZE = 0x%08X, RX_WINDOW_BUFFER_SIZE = 0x%08X\n",
|
|
nes_read_indexed(nesdev, NES_IDX_RX_WINDOW_BUFFER_PAGE_TABLE_SIZE),
|
|
nes_read_indexed(nesdev, NES_IDX_RX_WINDOW_BUFFER_SIZE));
|
|
if (nes_read_indexed(nesdev, NES_IDX_RX_WINDOW_BUFFER_SIZE) != 0) {
|
|
nic_context->context_words[NES_NIC_CTX_MISC_IDX] |= cpu_to_le32(NES_NIC_BACK_STORE);
|
|
}
|
|
|
|
u64temp = (u64)nesvnic->nic.sq_pbase;
|
|
nic_context->context_words[NES_NIC_CTX_SQ_LOW_IDX] = cpu_to_le32((u32)u64temp);
|
|
nic_context->context_words[NES_NIC_CTX_SQ_HIGH_IDX] = cpu_to_le32((u32)(u64temp >> 32));
|
|
u64temp = (u64)nesvnic->nic.rq_pbase;
|
|
nic_context->context_words[NES_NIC_CTX_RQ_LOW_IDX] = cpu_to_le32((u32)u64temp);
|
|
nic_context->context_words[NES_NIC_CTX_RQ_HIGH_IDX] = cpu_to_le32((u32)(u64temp >> 32));
|
|
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_CREATE_QP |
|
|
NES_CQP_QP_TYPE_NIC);
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(nesvnic->nic.qp_id);
|
|
u64temp = (u64)nesvnic->nic_cq.cq_pbase +
|
|
(nesvnic->nic_cq.cq_size * sizeof(struct nes_hw_nic_cqe));
|
|
set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
|
|
|
|
if (++cqp_head >= nesdev->cqp.sq_size)
|
|
cqp_head = 0;
|
|
nesdev->cqp.sq_head = cqp_head;
|
|
|
|
barrier();
|
|
|
|
/* Ring doorbell (2 WQEs) */
|
|
nes_write32(nesdev->regs+NES_WQE_ALLOC, 0x02800000 | nesdev->cqp.qp_id);
|
|
|
|
spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
|
|
nes_debug(NES_DBG_INIT, "Waiting for create NIC QP%u to complete.\n",
|
|
nesvnic->nic.qp_id);
|
|
|
|
ret = wait_event_timeout(nesdev->cqp.waitq, (nesdev->cqp.sq_tail == cqp_head),
|
|
NES_EVENT_TIMEOUT);
|
|
nes_debug(NES_DBG_INIT, "Create NIC QP%u completed, wait_event_timeout ret = %u.\n",
|
|
nesvnic->nic.qp_id, ret);
|
|
if (!ret) {
|
|
nes_debug(NES_DBG_INIT, "NIC QP%u create timeout expired\n", nesvnic->nic.qp_id);
|
|
pci_free_consistent(nesdev->pcidev, nesvnic->nic_mem_size, nesvnic->nic_vbase,
|
|
nesvnic->nic_pbase);
|
|
return -EIO;
|
|
}
|
|
|
|
/* Populate the RQ */
|
|
for (counter = 0; counter < (NES_NIC_WQ_SIZE - 1); counter++) {
|
|
skb = dev_alloc_skb(nesvnic->max_frame_size);
|
|
if (!skb) {
|
|
nes_debug(NES_DBG_INIT, "%s: out of memory for receive skb\n", netdev->name);
|
|
|
|
nes_destroy_nic_qp(nesvnic);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
skb->dev = netdev;
|
|
|
|
pmem = pci_map_single(nesdev->pcidev, skb->data,
|
|
nesvnic->max_frame_size, PCI_DMA_FROMDEVICE);
|
|
|
|
nic_rqe = &nesvnic->nic.rq_vbase[counter];
|
|
nic_rqe->wqe_words[NES_NIC_RQ_WQE_LENGTH_1_0_IDX] = cpu_to_le32(nesvnic->max_frame_size);
|
|
nic_rqe->wqe_words[NES_NIC_RQ_WQE_LENGTH_3_2_IDX] = 0;
|
|
nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_LOW_IDX] = cpu_to_le32((u32)pmem);
|
|
nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_HIGH_IDX] = cpu_to_le32((u32)((u64)pmem >> 32));
|
|
nesvnic->nic.rx_skb[counter] = skb;
|
|
}
|
|
|
|
wqe_count = NES_NIC_WQ_SIZE - 1;
|
|
nesvnic->nic.rq_head = wqe_count;
|
|
barrier();
|
|
do {
|
|
counter = min(wqe_count, ((u32)255));
|
|
wqe_count -= counter;
|
|
nes_write32(nesdev->regs+NES_WQE_ALLOC, (counter << 24) | nesvnic->nic.qp_id);
|
|
} while (wqe_count);
|
|
init_timer(&nesvnic->rq_wqes_timer);
|
|
nesvnic->rq_wqes_timer.function = nes_rq_wqes_timeout;
|
|
nesvnic->rq_wqes_timer.data = (unsigned long)nesvnic;
|
|
nes_debug(NES_DBG_INIT, "NAPI support Enabled\n");
|
|
if (nesdev->nesadapter->et_use_adaptive_rx_coalesce)
|
|
{
|
|
nes_nic_init_timer(nesdev);
|
|
if (netdev->mtu > 1500)
|
|
jumbomode = 1;
|
|
nes_nic_init_timer_defaults(nesdev, jumbomode);
|
|
}
|
|
nesvnic->lro_mgr.max_aggr = nes_lro_max_aggr;
|
|
nesvnic->lro_mgr.max_desc = NES_MAX_LRO_DESCRIPTORS;
|
|
nesvnic->lro_mgr.lro_arr = nesvnic->lro_desc;
|
|
nesvnic->lro_mgr.get_skb_header = nes_lro_get_skb_hdr;
|
|
nesvnic->lro_mgr.features = LRO_F_NAPI | LRO_F_EXTRACT_VLAN_ID;
|
|
nesvnic->lro_mgr.dev = netdev;
|
|
nesvnic->lro_mgr.ip_summed = CHECKSUM_UNNECESSARY;
|
|
nesvnic->lro_mgr.ip_summed_aggr = CHECKSUM_UNNECESSARY;
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_destroy_nic_qp
|
|
*/
|
|
void nes_destroy_nic_qp(struct nes_vnic *nesvnic)
|
|
{
|
|
u64 u64temp;
|
|
dma_addr_t bus_address;
|
|
struct nes_device *nesdev = nesvnic->nesdev;
|
|
struct nes_hw_cqp_wqe *cqp_wqe;
|
|
struct nes_hw_nic_sq_wqe *nic_sqe;
|
|
struct nes_hw_nic_rq_wqe *nic_rqe;
|
|
__le16 *wqe_fragment_length;
|
|
u16 wqe_fragment_index;
|
|
u64 wqe_frag;
|
|
u32 cqp_head;
|
|
u32 wqm_cfg0;
|
|
unsigned long flags;
|
|
int ret;
|
|
|
|
/* clear wqe stall before destroying NIC QP */
|
|
wqm_cfg0 = nes_read_indexed(nesdev, NES_IDX_WQM_CONFIG0);
|
|
nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG0, wqm_cfg0 & 0xFFFF7FFF);
|
|
|
|
/* Free remaining NIC receive buffers */
|
|
while (nesvnic->nic.rq_head != nesvnic->nic.rq_tail) {
|
|
nic_rqe = &nesvnic->nic.rq_vbase[nesvnic->nic.rq_tail];
|
|
wqe_frag = (u64)le32_to_cpu(
|
|
nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_LOW_IDX]);
|
|
wqe_frag |= ((u64)le32_to_cpu(
|
|
nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_HIGH_IDX]))<<32;
|
|
pci_unmap_single(nesdev->pcidev, (dma_addr_t)wqe_frag,
|
|
nesvnic->max_frame_size, PCI_DMA_FROMDEVICE);
|
|
dev_kfree_skb(nesvnic->nic.rx_skb[nesvnic->nic.rq_tail++]);
|
|
nesvnic->nic.rq_tail &= (nesvnic->nic.rq_size - 1);
|
|
}
|
|
|
|
/* Free remaining NIC transmit buffers */
|
|
while (nesvnic->nic.sq_head != nesvnic->nic.sq_tail) {
|
|
nic_sqe = &nesvnic->nic.sq_vbase[nesvnic->nic.sq_tail];
|
|
wqe_fragment_index = 1;
|
|
wqe_fragment_length = (__le16 *)
|
|
&nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_0_TAG_IDX];
|
|
/* bump past the vlan tag */
|
|
wqe_fragment_length++;
|
|
if (le16_to_cpu(wqe_fragment_length[wqe_fragment_index]) != 0) {
|
|
u64temp = (u64)le32_to_cpu(
|
|
nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_LOW_IDX+
|
|
wqe_fragment_index*2]);
|
|
u64temp += ((u64)le32_to_cpu(
|
|
nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_HIGH_IDX
|
|
+ wqe_fragment_index*2]))<<32;
|
|
bus_address = (dma_addr_t)u64temp;
|
|
if (test_and_clear_bit(nesvnic->nic.sq_tail,
|
|
nesvnic->nic.first_frag_overflow)) {
|
|
pci_unmap_single(nesdev->pcidev,
|
|
bus_address,
|
|
le16_to_cpu(wqe_fragment_length[
|
|
wqe_fragment_index++]),
|
|
PCI_DMA_TODEVICE);
|
|
}
|
|
for (; wqe_fragment_index < 5; wqe_fragment_index++) {
|
|
if (wqe_fragment_length[wqe_fragment_index]) {
|
|
u64temp = le32_to_cpu(
|
|
nic_sqe->wqe_words[
|
|
NES_NIC_SQ_WQE_FRAG0_LOW_IDX+
|
|
wqe_fragment_index*2]);
|
|
u64temp += ((u64)le32_to_cpu(
|
|
nic_sqe->wqe_words[
|
|
NES_NIC_SQ_WQE_FRAG0_HIGH_IDX+
|
|
wqe_fragment_index*2]))<<32;
|
|
bus_address = (dma_addr_t)u64temp;
|
|
pci_unmap_page(nesdev->pcidev,
|
|
bus_address,
|
|
le16_to_cpu(
|
|
wqe_fragment_length[
|
|
wqe_fragment_index]),
|
|
PCI_DMA_TODEVICE);
|
|
} else
|
|
break;
|
|
}
|
|
}
|
|
if (nesvnic->nic.tx_skb[nesvnic->nic.sq_tail])
|
|
dev_kfree_skb(
|
|
nesvnic->nic.tx_skb[nesvnic->nic.sq_tail]);
|
|
|
|
nesvnic->nic.sq_tail = (++nesvnic->nic.sq_tail)
|
|
& (nesvnic->nic.sq_size - 1);
|
|
}
|
|
|
|
spin_lock_irqsave(&nesdev->cqp.lock, flags);
|
|
|
|
/* Destroy NIC QP */
|
|
cqp_head = nesdev->cqp.sq_head;
|
|
cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
|
|
nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
|
|
|
|
set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
|
|
(NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_NIC));
|
|
set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX,
|
|
nesvnic->nic.qp_id);
|
|
|
|
if (++cqp_head >= nesdev->cqp.sq_size)
|
|
cqp_head = 0;
|
|
|
|
cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
|
|
|
|
/* Destroy NIC CQ */
|
|
nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
|
|
set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
|
|
(NES_CQP_DESTROY_CQ | ((u32)nesvnic->nic_cq.cq_size << 16)));
|
|
set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX,
|
|
(nesvnic->nic_cq.cq_number | ((u32)nesdev->nic_ceq_index << 16)));
|
|
|
|
if (++cqp_head >= nesdev->cqp.sq_size)
|
|
cqp_head = 0;
|
|
|
|
nesdev->cqp.sq_head = cqp_head;
|
|
barrier();
|
|
|
|
/* Ring doorbell (2 WQEs) */
|
|
nes_write32(nesdev->regs+NES_WQE_ALLOC, 0x02800000 | nesdev->cqp.qp_id);
|
|
|
|
spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
|
|
nes_debug(NES_DBG_SHUTDOWN, "Waiting for CQP, cqp_head=%u, cqp.sq_head=%u,"
|
|
" cqp.sq_tail=%u, cqp.sq_size=%u\n",
|
|
cqp_head, nesdev->cqp.sq_head,
|
|
nesdev->cqp.sq_tail, nesdev->cqp.sq_size);
|
|
|
|
ret = wait_event_timeout(nesdev->cqp.waitq, (nesdev->cqp.sq_tail == cqp_head),
|
|
NES_EVENT_TIMEOUT);
|
|
|
|
nes_debug(NES_DBG_SHUTDOWN, "Destroy NIC QP returned, wait_event_timeout ret = %u, cqp_head=%u,"
|
|
" cqp.sq_head=%u, cqp.sq_tail=%u\n",
|
|
ret, cqp_head, nesdev->cqp.sq_head, nesdev->cqp.sq_tail);
|
|
if (!ret) {
|
|
nes_debug(NES_DBG_SHUTDOWN, "NIC QP%u destroy timeout expired\n",
|
|
nesvnic->nic.qp_id);
|
|
}
|
|
|
|
pci_free_consistent(nesdev->pcidev, nesvnic->nic_mem_size, nesvnic->nic_vbase,
|
|
nesvnic->nic_pbase);
|
|
|
|
/* restore old wqm_cfg0 value */
|
|
nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG0, wqm_cfg0);
|
|
}
|
|
|
|
/**
|
|
* nes_napi_isr
|
|
*/
|
|
int nes_napi_isr(struct nes_device *nesdev)
|
|
{
|
|
struct nes_adapter *nesadapter = nesdev->nesadapter;
|
|
u32 int_stat;
|
|
|
|
if (nesdev->napi_isr_ran) {
|
|
/* interrupt status has already been read in ISR */
|
|
int_stat = nesdev->int_stat;
|
|
} else {
|
|
int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
|
|
nesdev->int_stat = int_stat;
|
|
nesdev->napi_isr_ran = 1;
|
|
}
|
|
|
|
int_stat &= nesdev->int_req;
|
|
/* iff NIC, process here, else wait for DPC */
|
|
if ((int_stat) && ((int_stat & 0x0000ff00) == int_stat)) {
|
|
nesdev->napi_isr_ran = 0;
|
|
nes_write32(nesdev->regs + NES_INT_STAT,
|
|
(int_stat &
|
|
~(NES_INT_INTF | NES_INT_TIMER | NES_INT_MAC0 | NES_INT_MAC1 | NES_INT_MAC2 | NES_INT_MAC3)));
|
|
|
|
/* Process the CEQs */
|
|
nes_process_ceq(nesdev, &nesdev->nesadapter->ceq[nesdev->nic_ceq_index]);
|
|
|
|
if (unlikely((((nesadapter->et_rx_coalesce_usecs_irq) &&
|
|
(!nesadapter->et_use_adaptive_rx_coalesce)) ||
|
|
((nesadapter->et_use_adaptive_rx_coalesce) &&
|
|
(nesdev->deepcq_count > nesadapter->et_pkt_rate_low))))) {
|
|
if ((nesdev->int_req & NES_INT_TIMER) == 0) {
|
|
/* Enable Periodic timer interrupts */
|
|
nesdev->int_req |= NES_INT_TIMER;
|
|
/* ack any pending periodic timer interrupts so we don't get an immediate interrupt */
|
|
/* TODO: need to also ack other unused periodic timer values, get from nesadapter */
|
|
nes_write32(nesdev->regs+NES_TIMER_STAT,
|
|
nesdev->timer_int_req | ~(nesdev->nesadapter->timer_int_req));
|
|
nes_write32(nesdev->regs+NES_INTF_INT_MASK,
|
|
~(nesdev->intf_int_req | NES_INTF_PERIODIC_TIMER));
|
|
}
|
|
|
|
if (unlikely(nesadapter->et_use_adaptive_rx_coalesce))
|
|
{
|
|
nes_nic_init_timer(nesdev);
|
|
}
|
|
/* Enable interrupts, except CEQs */
|
|
nes_write32(nesdev->regs+NES_INT_MASK, 0x0000ffff | (~nesdev->int_req));
|
|
} else {
|
|
/* Enable interrupts, make sure timer is off */
|
|
nesdev->int_req &= ~NES_INT_TIMER;
|
|
nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
|
|
nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
|
|
}
|
|
nesdev->deepcq_count = 0;
|
|
return 1;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static void process_critical_error(struct nes_device *nesdev)
|
|
{
|
|
u32 debug_error;
|
|
u32 nes_idx_debug_error_masks0 = 0;
|
|
u16 error_module = 0;
|
|
|
|
debug_error = nes_read_indexed(nesdev, NES_IDX_DEBUG_ERROR_CONTROL_STATUS);
|
|
printk(KERN_ERR PFX "Critical Error reported by device!!! 0x%02X\n",
|
|
(u16)debug_error);
|
|
nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_CONTROL_STATUS,
|
|
0x01010000 | (debug_error & 0x0000ffff));
|
|
if (crit_err_count++ > 10)
|
|
nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 1 << 0x17);
|
|
error_module = (u16) (debug_error & 0x1F00) >> 8;
|
|
if (++nesdev->nesadapter->crit_error_count[error_module-1] >=
|
|
nes_max_critical_error_count) {
|
|
printk(KERN_ERR PFX "Masking off critical error for module "
|
|
"0x%02X\n", (u16)error_module);
|
|
nes_idx_debug_error_masks0 = nes_read_indexed(nesdev,
|
|
NES_IDX_DEBUG_ERROR_MASKS0);
|
|
nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0,
|
|
nes_idx_debug_error_masks0 | (1 << error_module));
|
|
}
|
|
}
|
|
/**
|
|
* nes_dpc
|
|
*/
|
|
void nes_dpc(unsigned long param)
|
|
{
|
|
struct nes_device *nesdev = (struct nes_device *)param;
|
|
struct nes_adapter *nesadapter = nesdev->nesadapter;
|
|
u32 counter;
|
|
u32 loop_counter = 0;
|
|
u32 int_status_bit;
|
|
u32 int_stat;
|
|
u32 timer_stat;
|
|
u32 temp_int_stat;
|
|
u32 intf_int_stat;
|
|
u32 processed_intf_int = 0;
|
|
u16 processed_timer_int = 0;
|
|
u16 completion_ints = 0;
|
|
u16 timer_ints = 0;
|
|
|
|
/* nes_debug(NES_DBG_ISR, "\n"); */
|
|
|
|
do {
|
|
timer_stat = 0;
|
|
if (nesdev->napi_isr_ran) {
|
|
nesdev->napi_isr_ran = 0;
|
|
int_stat = nesdev->int_stat;
|
|
} else
|
|
int_stat = nes_read32(nesdev->regs+NES_INT_STAT);
|
|
if (processed_intf_int != 0)
|
|
int_stat &= nesdev->int_req & ~NES_INT_INTF;
|
|
else
|
|
int_stat &= nesdev->int_req;
|
|
if (processed_timer_int == 0) {
|
|
processed_timer_int = 1;
|
|
if (int_stat & NES_INT_TIMER) {
|
|
timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
|
|
if ((timer_stat & nesdev->timer_int_req) == 0) {
|
|
int_stat &= ~NES_INT_TIMER;
|
|
}
|
|
}
|
|
} else {
|
|
int_stat &= ~NES_INT_TIMER;
|
|
}
|
|
|
|
if (int_stat) {
|
|
if (int_stat & ~(NES_INT_INTF | NES_INT_TIMER | NES_INT_MAC0|
|
|
NES_INT_MAC1|NES_INT_MAC2 | NES_INT_MAC3)) {
|
|
/* Ack the interrupts */
|
|
nes_write32(nesdev->regs+NES_INT_STAT,
|
|
(int_stat & ~(NES_INT_INTF | NES_INT_TIMER | NES_INT_MAC0|
|
|
NES_INT_MAC1 | NES_INT_MAC2 | NES_INT_MAC3)));
|
|
}
|
|
|
|
temp_int_stat = int_stat;
|
|
for (counter = 0, int_status_bit = 1; counter < 16; counter++) {
|
|
if (int_stat & int_status_bit) {
|
|
nes_process_ceq(nesdev, &nesadapter->ceq[counter]);
|
|
temp_int_stat &= ~int_status_bit;
|
|
completion_ints = 1;
|
|
}
|
|
if (!(temp_int_stat & 0x0000ffff))
|
|
break;
|
|
int_status_bit <<= 1;
|
|
}
|
|
|
|
/* Process the AEQ for this pci function */
|
|
int_status_bit = 1 << (16 + PCI_FUNC(nesdev->pcidev->devfn));
|
|
if (int_stat & int_status_bit) {
|
|
nes_process_aeq(nesdev, &nesadapter->aeq[PCI_FUNC(nesdev->pcidev->devfn)]);
|
|
}
|
|
|
|
/* Process the MAC interrupt for this pci function */
|
|
int_status_bit = 1 << (24 + nesdev->mac_index);
|
|
if (int_stat & int_status_bit) {
|
|
nes_process_mac_intr(nesdev, nesdev->mac_index);
|
|
}
|
|
|
|
if (int_stat & NES_INT_TIMER) {
|
|
if (timer_stat & nesdev->timer_int_req) {
|
|
nes_write32(nesdev->regs + NES_TIMER_STAT,
|
|
(timer_stat & nesdev->timer_int_req) |
|
|
~(nesdev->nesadapter->timer_int_req));
|
|
timer_ints = 1;
|
|
}
|
|
}
|
|
|
|
if (int_stat & NES_INT_INTF) {
|
|
processed_intf_int = 1;
|
|
intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
|
|
intf_int_stat &= nesdev->intf_int_req;
|
|
if (NES_INTF_INT_CRITERR & intf_int_stat) {
|
|
process_critical_error(nesdev);
|
|
}
|
|
if (NES_INTF_INT_PCIERR & intf_int_stat) {
|
|
printk(KERN_ERR PFX "PCI Error reported by device!!!\n");
|
|
BUG();
|
|
}
|
|
if (NES_INTF_INT_AEQ_OFLOW & intf_int_stat) {
|
|
printk(KERN_ERR PFX "AEQ Overflow reported by device!!!\n");
|
|
BUG();
|
|
}
|
|
nes_write32(nesdev->regs+NES_INTF_INT_STAT, intf_int_stat);
|
|
}
|
|
|
|
if (int_stat & NES_INT_TSW) {
|
|
}
|
|
}
|
|
/* Don't use the interface interrupt bit stay in loop */
|
|
int_stat &= ~NES_INT_INTF | NES_INT_TIMER | NES_INT_MAC0 |
|
|
NES_INT_MAC1 | NES_INT_MAC2 | NES_INT_MAC3;
|
|
} while ((int_stat != 0) && (loop_counter++ < MAX_DPC_ITERATIONS));
|
|
|
|
if (timer_ints == 1) {
|
|
if ((nesadapter->et_rx_coalesce_usecs_irq) || (nesadapter->et_use_adaptive_rx_coalesce)) {
|
|
if (completion_ints == 0) {
|
|
nesdev->timer_only_int_count++;
|
|
if (nesdev->timer_only_int_count>=nesadapter->timer_int_limit) {
|
|
nesdev->timer_only_int_count = 0;
|
|
nesdev->int_req &= ~NES_INT_TIMER;
|
|
nes_write32(nesdev->regs + NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
|
|
nes_write32(nesdev->regs + NES_INT_MASK, ~nesdev->int_req);
|
|
} else {
|
|
nes_write32(nesdev->regs+NES_INT_MASK, 0x0000ffff | (~nesdev->int_req));
|
|
}
|
|
} else {
|
|
if (unlikely(nesadapter->et_use_adaptive_rx_coalesce))
|
|
{
|
|
nes_nic_init_timer(nesdev);
|
|
}
|
|
nesdev->timer_only_int_count = 0;
|
|
nes_write32(nesdev->regs+NES_INT_MASK, 0x0000ffff | (~nesdev->int_req));
|
|
}
|
|
} else {
|
|
nesdev->timer_only_int_count = 0;
|
|
nesdev->int_req &= ~NES_INT_TIMER;
|
|
nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
|
|
nes_write32(nesdev->regs+NES_TIMER_STAT,
|
|
nesdev->timer_int_req | ~(nesdev->nesadapter->timer_int_req));
|
|
nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
|
|
}
|
|
} else {
|
|
if ( (completion_ints == 1) &&
|
|
(((nesadapter->et_rx_coalesce_usecs_irq) &&
|
|
(!nesadapter->et_use_adaptive_rx_coalesce)) ||
|
|
((nesdev->deepcq_count > nesadapter->et_pkt_rate_low) &&
|
|
(nesadapter->et_use_adaptive_rx_coalesce) )) ) {
|
|
/* nes_debug(NES_DBG_ISR, "Enabling periodic timer interrupt.\n" ); */
|
|
nesdev->timer_only_int_count = 0;
|
|
nesdev->int_req |= NES_INT_TIMER;
|
|
nes_write32(nesdev->regs+NES_TIMER_STAT,
|
|
nesdev->timer_int_req | ~(nesdev->nesadapter->timer_int_req));
|
|
nes_write32(nesdev->regs+NES_INTF_INT_MASK,
|
|
~(nesdev->intf_int_req | NES_INTF_PERIODIC_TIMER));
|
|
nes_write32(nesdev->regs+NES_INT_MASK, 0x0000ffff | (~nesdev->int_req));
|
|
} else {
|
|
nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
|
|
}
|
|
}
|
|
nesdev->deepcq_count = 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_process_ceq
|
|
*/
|
|
static void nes_process_ceq(struct nes_device *nesdev, struct nes_hw_ceq *ceq)
|
|
{
|
|
u64 u64temp;
|
|
struct nes_hw_cq *cq;
|
|
u32 head;
|
|
u32 ceq_size;
|
|
|
|
/* nes_debug(NES_DBG_CQ, "\n"); */
|
|
head = ceq->ceq_head;
|
|
ceq_size = ceq->ceq_size;
|
|
|
|
do {
|
|
if (le32_to_cpu(ceq->ceq_vbase[head].ceqe_words[NES_CEQE_CQ_CTX_HIGH_IDX]) &
|
|
NES_CEQE_VALID) {
|
|
u64temp = (((u64)(le32_to_cpu(ceq->ceq_vbase[head].ceqe_words[NES_CEQE_CQ_CTX_HIGH_IDX]))) << 32) |
|
|
((u64)(le32_to_cpu(ceq->ceq_vbase[head].ceqe_words[NES_CEQE_CQ_CTX_LOW_IDX])));
|
|
u64temp <<= 1;
|
|
cq = *((struct nes_hw_cq **)&u64temp);
|
|
/* nes_debug(NES_DBG_CQ, "pCQ = %p\n", cq); */
|
|
barrier();
|
|
ceq->ceq_vbase[head].ceqe_words[NES_CEQE_CQ_CTX_HIGH_IDX] = 0;
|
|
|
|
/* call the event handler */
|
|
cq->ce_handler(nesdev, cq);
|
|
|
|
if (++head >= ceq_size)
|
|
head = 0;
|
|
} else {
|
|
break;
|
|
}
|
|
|
|
} while (1);
|
|
|
|
ceq->ceq_head = head;
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_process_aeq
|
|
*/
|
|
static void nes_process_aeq(struct nes_device *nesdev, struct nes_hw_aeq *aeq)
|
|
{
|
|
/* u64 u64temp; */
|
|
u32 head;
|
|
u32 aeq_size;
|
|
u32 aeqe_misc;
|
|
u32 aeqe_cq_id;
|
|
struct nes_hw_aeqe volatile *aeqe;
|
|
|
|
head = aeq->aeq_head;
|
|
aeq_size = aeq->aeq_size;
|
|
|
|
do {
|
|
aeqe = &aeq->aeq_vbase[head];
|
|
if ((le32_to_cpu(aeqe->aeqe_words[NES_AEQE_MISC_IDX]) & NES_AEQE_VALID) == 0)
|
|
break;
|
|
aeqe_misc = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_MISC_IDX]);
|
|
aeqe_cq_id = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]);
|
|
if (aeqe_misc & (NES_AEQE_QP|NES_AEQE_CQ)) {
|
|
if (aeqe_cq_id >= NES_FIRST_QPN) {
|
|
/* dealing with an accelerated QP related AE */
|
|
/*
|
|
* u64temp = (((u64)(le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_CTXT_HIGH_IDX]))) << 32) |
|
|
* ((u64)(le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_CTXT_LOW_IDX])));
|
|
*/
|
|
nes_process_iwarp_aeqe(nesdev, (struct nes_hw_aeqe *)aeqe);
|
|
} else {
|
|
/* TODO: dealing with a CQP related AE */
|
|
nes_debug(NES_DBG_AEQ, "Processing CQP related AE, misc = 0x%04X\n",
|
|
(u16)(aeqe_misc >> 16));
|
|
}
|
|
}
|
|
|
|
aeqe->aeqe_words[NES_AEQE_MISC_IDX] = 0;
|
|
|
|
if (++head >= aeq_size)
|
|
head = 0;
|
|
|
|
nes_write32(nesdev->regs + NES_AEQ_ALLOC, 1 << 16);
|
|
}
|
|
while (1);
|
|
aeq->aeq_head = head;
|
|
}
|
|
|
|
static void nes_reset_link(struct nes_device *nesdev, u32 mac_index)
|
|
{
|
|
struct nes_adapter *nesadapter = nesdev->nesadapter;
|
|
u32 reset_value;
|
|
u32 i=0;
|
|
u32 u32temp;
|
|
|
|
if (nesadapter->hw_rev == NE020_REV) {
|
|
return;
|
|
}
|
|
mh_detected++;
|
|
|
|
reset_value = nes_read32(nesdev->regs+NES_SOFTWARE_RESET);
|
|
|
|
if ((mac_index == 0) || ((mac_index == 1) && (nesadapter->OneG_Mode)))
|
|
reset_value |= 0x0000001d;
|
|
else
|
|
reset_value |= 0x0000002d;
|
|
|
|
if (4 <= (nesadapter->link_interrupt_count[mac_index] / ((u16)NES_MAX_LINK_INTERRUPTS))) {
|
|
if ((!nesadapter->OneG_Mode) && (nesadapter->port_count == 2)) {
|
|
nesadapter->link_interrupt_count[0] = 0;
|
|
nesadapter->link_interrupt_count[1] = 0;
|
|
u32temp = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1);
|
|
if (0x00000040 & u32temp)
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, 0x0000F088);
|
|
else
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, 0x0000F0C8);
|
|
|
|
reset_value |= 0x0000003d;
|
|
}
|
|
nesadapter->link_interrupt_count[mac_index] = 0;
|
|
}
|
|
|
|
nes_write32(nesdev->regs+NES_SOFTWARE_RESET, reset_value);
|
|
|
|
while (((nes_read32(nesdev->regs+NES_SOFTWARE_RESET)
|
|
& 0x00000040) != 0x00000040) && (i++ < 5000));
|
|
|
|
if (0x0000003d == (reset_value & 0x0000003d)) {
|
|
u32 pcs_control_status0, pcs_control_status1;
|
|
|
|
for (i = 0; i < 10; i++) {
|
|
pcs_control_status0 = nes_read_indexed(nesdev, NES_IDX_PHY_PCS_CONTROL_STATUS0);
|
|
pcs_control_status1 = nes_read_indexed(nesdev, NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
|
|
if (((0x0F000000 == (pcs_control_status0 & 0x0F000000))
|
|
&& (pcs_control_status0 & 0x00100000))
|
|
|| ((0x0F000000 == (pcs_control_status1 & 0x0F000000))
|
|
&& (pcs_control_status1 & 0x00100000)))
|
|
continue;
|
|
else
|
|
break;
|
|
}
|
|
if (10 == i) {
|
|
u32temp = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1);
|
|
if (0x00000040 & u32temp)
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, 0x0000F088);
|
|
else
|
|
nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, 0x0000F0C8);
|
|
|
|
nes_write32(nesdev->regs+NES_SOFTWARE_RESET, reset_value);
|
|
|
|
while (((nes_read32(nesdev->regs + NES_SOFTWARE_RESET)
|
|
& 0x00000040) != 0x00000040) && (i++ < 5000));
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* nes_process_mac_intr
|
|
*/
|
|
static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number)
|
|
{
|
|
unsigned long flags;
|
|
u32 pcs_control_status;
|
|
struct nes_adapter *nesadapter = nesdev->nesadapter;
|
|
struct nes_vnic *nesvnic;
|
|
u32 mac_status;
|
|
u32 mac_index = nesdev->mac_index;
|
|
u32 u32temp;
|
|
u16 phy_data;
|
|
u16 temp_phy_data;
|
|
u32 pcs_val = 0x0f0f0000;
|
|
u32 pcs_mask = 0x0f1f0000;
|
|
u32 cdr_ctrl;
|
|
|
|
spin_lock_irqsave(&nesadapter->phy_lock, flags);
|
|
if (nesadapter->mac_sw_state[mac_number] != NES_MAC_SW_IDLE) {
|
|
spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
|
|
return;
|
|
}
|
|
nesadapter->mac_sw_state[mac_number] = NES_MAC_SW_INTERRUPT;
|
|
|
|
/* ack the MAC interrupt */
|
|
mac_status = nes_read_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (mac_index * 0x200));
|
|
/* Clear the interrupt */
|
|
nes_write_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (mac_index * 0x200), mac_status);
|
|
|
|
nes_debug(NES_DBG_PHY, "MAC%u interrupt status = 0x%X.\n", mac_number, mac_status);
|
|
|
|
if (mac_status & (NES_MAC_INT_LINK_STAT_CHG | NES_MAC_INT_XGMII_EXT)) {
|
|
nesdev->link_status_interrupts++;
|
|
if (0 == (++nesadapter->link_interrupt_count[mac_index] % ((u16)NES_MAX_LINK_INTERRUPTS)))
|
|
nes_reset_link(nesdev, mac_index);
|
|
|
|
/* read the PHY interrupt status register */
|
|
if ((nesadapter->OneG_Mode) &&
|
|
(nesadapter->phy_type[mac_index] != NES_PHY_TYPE_PUMA_1G)) {
|
|
do {
|
|
nes_read_1G_phy_reg(nesdev, 0x1a,
|
|
nesadapter->phy_index[mac_index], &phy_data);
|
|
nes_debug(NES_DBG_PHY, "Phy%d data from register 0x1a = 0x%X.\n",
|
|
nesadapter->phy_index[mac_index], phy_data);
|
|
} while (phy_data&0x8000);
|
|
|
|
temp_phy_data = 0;
|
|
do {
|
|
nes_read_1G_phy_reg(nesdev, 0x11,
|
|
nesadapter->phy_index[mac_index], &phy_data);
|
|
nes_debug(NES_DBG_PHY, "Phy%d data from register 0x11 = 0x%X.\n",
|
|
nesadapter->phy_index[mac_index], phy_data);
|
|
if (temp_phy_data == phy_data)
|
|
break;
|
|
temp_phy_data = phy_data;
|
|
} while (1);
|
|
|
|
nes_read_1G_phy_reg(nesdev, 0x1e,
|
|
nesadapter->phy_index[mac_index], &phy_data);
|
|
nes_debug(NES_DBG_PHY, "Phy%d data from register 0x1e = 0x%X.\n",
|
|
nesadapter->phy_index[mac_index], phy_data);
|
|
|
|
nes_read_1G_phy_reg(nesdev, 1,
|
|
nesadapter->phy_index[mac_index], &phy_data);
|
|
nes_debug(NES_DBG_PHY, "1G phy%u data from register 1 = 0x%X\n",
|
|
nesadapter->phy_index[mac_index], phy_data);
|
|
|
|
if (temp_phy_data & 0x1000) {
|
|
nes_debug(NES_DBG_PHY, "The Link is up according to the PHY\n");
|
|
phy_data = 4;
|
|
} else {
|
|
nes_debug(NES_DBG_PHY, "The Link is down according to the PHY\n");
|
|
}
|
|
}
|
|
nes_debug(NES_DBG_PHY, "Eth SERDES Common Status: 0=0x%08X, 1=0x%08X\n",
|
|
nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS0),
|
|
nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS0+0x200));
|
|
|
|
if (nesadapter->phy_type[mac_index] == NES_PHY_TYPE_PUMA_1G) {
|
|
switch (mac_index) {
|
|
case 1:
|
|
case 3:
|
|
pcs_control_status = nes_read_indexed(nesdev,
|
|
NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
|
|
break;
|
|
default:
|
|
pcs_control_status = nes_read_indexed(nesdev,
|
|
NES_IDX_PHY_PCS_CONTROL_STATUS0);
|
|
break;
|
|
}
|
|
} else {
|
|
pcs_control_status = nes_read_indexed(nesdev,
|
|
NES_IDX_PHY_PCS_CONTROL_STATUS0 + ((mac_index & 1) * 0x200));
|
|
pcs_control_status = nes_read_indexed(nesdev,
|
|
NES_IDX_PHY_PCS_CONTROL_STATUS0 + ((mac_index & 1) * 0x200));
|
|
}
|
|
|
|
nes_debug(NES_DBG_PHY, "PCS PHY Control/Status%u: 0x%08X\n",
|
|
mac_index, pcs_control_status);
|
|
if ((nesadapter->OneG_Mode) &&
|
|
(nesadapter->phy_type[mac_index] != NES_PHY_TYPE_PUMA_1G)) {
|
|
u32temp = 0x01010000;
|
|
if (nesadapter->port_count > 2) {
|
|
u32temp |= 0x02020000;
|
|
}
|
|
if ((pcs_control_status & u32temp)!= u32temp) {
|
|
phy_data = 0;
|
|
nes_debug(NES_DBG_PHY, "PCS says the link is down\n");
|
|
}
|
|
} else {
|
|
switch (nesadapter->phy_type[mac_index]) {
|
|
case NES_PHY_TYPE_ARGUS:
|
|
case NES_PHY_TYPE_SFP_D:
|
|
case NES_PHY_TYPE_KR:
|
|
/* clear the alarms */
|
|
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0x0008);
|
|
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0xc001);
|
|
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0xc002);
|
|
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0xc005);
|
|
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0xc006);
|
|
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 0x9003);
|
|
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 0x9004);
|
|
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 0x9005);
|
|
/* check link status */
|
|
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 0x9003);
|
|
temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
|
|
|
|
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 3, 0x0021);
|
|
nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
|
|
nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 3, 0x0021);
|
|
phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
|
|
|
|
phy_data = (!temp_phy_data && (phy_data == 0x8000)) ? 0x4 : 0x0;
|
|
|
|
nes_debug(NES_DBG_PHY, "%s: Phy data = 0x%04X, link was %s.\n",
|
|
__func__, phy_data, nesadapter->mac_link_down[mac_index] ? "DOWN" : "UP");
|
|
break;
|
|
|
|
case NES_PHY_TYPE_PUMA_1G:
|
|
if (mac_index < 2)
|
|
pcs_val = pcs_mask = 0x01010000;
|
|
else
|
|
pcs_val = pcs_mask = 0x02020000;
|
|
/* fall through */
|
|
default:
|
|
phy_data = (pcs_val == (pcs_control_status & pcs_mask)) ? 0x4 : 0x0;
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
|
|
|
|
if (phy_data & 0x0004) {
|
|
if (wide_ppm_offset &&
|
|
(nesadapter->phy_type[mac_index] == NES_PHY_TYPE_CX4) &&
|
|
(nesadapter->hw_rev != NE020_REV)) {
|
|
cdr_ctrl = nes_read_indexed(nesdev,
|
|
NES_IDX_ETH_SERDES_CDR_CONTROL0 +
|
|
mac_index * 0x200);
|
|
nes_write_indexed(nesdev,
|
|
NES_IDX_ETH_SERDES_CDR_CONTROL0 +
|
|
mac_index * 0x200,
|
|
cdr_ctrl | 0x000F0000);
|
|
}
|
|
nesadapter->mac_link_down[mac_index] = 0;
|
|
list_for_each_entry(nesvnic, &nesadapter->nesvnic_list[mac_index], list) {
|
|
nes_debug(NES_DBG_PHY, "The Link is UP!!. linkup was %d\n",
|
|
nesvnic->linkup);
|
|
if (nesvnic->linkup == 0) {
|
|
printk(PFX "The Link is now up for port %s, netdev %p.\n",
|
|
nesvnic->netdev->name, nesvnic->netdev);
|
|
if (netif_queue_stopped(nesvnic->netdev))
|
|
netif_start_queue(nesvnic->netdev);
|
|
nesvnic->linkup = 1;
|
|
netif_carrier_on(nesvnic->netdev);
|
|
}
|
|
}
|
|
} else {
|
|
if (wide_ppm_offset &&
|
|
(nesadapter->phy_type[mac_index] == NES_PHY_TYPE_CX4) &&
|
|
(nesadapter->hw_rev != NE020_REV)) {
|
|
cdr_ctrl = nes_read_indexed(nesdev,
|
|
NES_IDX_ETH_SERDES_CDR_CONTROL0 +
|
|
mac_index * 0x200);
|
|
nes_write_indexed(nesdev,
|
|
NES_IDX_ETH_SERDES_CDR_CONTROL0 +
|
|
mac_index * 0x200,
|
|
cdr_ctrl & 0xFFF0FFFF);
|
|
}
|
|
nesadapter->mac_link_down[mac_index] = 1;
|
|
list_for_each_entry(nesvnic, &nesadapter->nesvnic_list[mac_index], list) {
|
|
nes_debug(NES_DBG_PHY, "The Link is Down!!. linkup was %d\n",
|
|
nesvnic->linkup);
|
|
if (nesvnic->linkup == 1) {
|
|
printk(PFX "The Link is now down for port %s, netdev %p.\n",
|
|
nesvnic->netdev->name, nesvnic->netdev);
|
|
if (!(netif_queue_stopped(nesvnic->netdev)))
|
|
netif_stop_queue(nesvnic->netdev);
|
|
nesvnic->linkup = 0;
|
|
netif_carrier_off(nesvnic->netdev);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
nesadapter->mac_sw_state[mac_number] = NES_MAC_SW_IDLE;
|
|
}
|
|
|
|
|
|
|
|
static void nes_nic_napi_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq)
|
|
{
|
|
struct nes_vnic *nesvnic = container_of(cq, struct nes_vnic, nic_cq);
|
|
|
|
napi_schedule(&nesvnic->napi);
|
|
}
|
|
|
|
|
|
/* The MAX_RQES_TO_PROCESS defines how many max read requests to complete before
|
|
* getting out of nic_ce_handler
|
|
*/
|
|
#define MAX_RQES_TO_PROCESS 384
|
|
|
|
/**
|
|
* nes_nic_ce_handler
|
|
*/
|
|
void nes_nic_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq)
|
|
{
|
|
u64 u64temp;
|
|
dma_addr_t bus_address;
|
|
struct nes_hw_nic *nesnic;
|
|
struct nes_vnic *nesvnic = container_of(cq, struct nes_vnic, nic_cq);
|
|
struct nes_adapter *nesadapter = nesdev->nesadapter;
|
|
struct nes_hw_nic_rq_wqe *nic_rqe;
|
|
struct nes_hw_nic_sq_wqe *nic_sqe;
|
|
struct sk_buff *skb;
|
|
struct sk_buff *rx_skb;
|
|
__le16 *wqe_fragment_length;
|
|
u32 head;
|
|
u32 cq_size;
|
|
u32 rx_pkt_size;
|
|
u32 cqe_count=0;
|
|
u32 cqe_errv;
|
|
u32 cqe_misc;
|
|
u16 wqe_fragment_index = 1; /* first fragment (0) is used by copy buffer */
|
|
u16 vlan_tag;
|
|
u16 pkt_type;
|
|
u16 rqes_processed = 0;
|
|
u8 sq_cqes = 0;
|
|
u8 nes_use_lro = 0;
|
|
|
|
head = cq->cq_head;
|
|
cq_size = cq->cq_size;
|
|
cq->cqes_pending = 1;
|
|
if (nesvnic->netdev->features & NETIF_F_LRO)
|
|
nes_use_lro = 1;
|
|
do {
|
|
if (le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_NIC_CQE_MISC_IDX]) &
|
|
NES_NIC_CQE_VALID) {
|
|
nesnic = &nesvnic->nic;
|
|
cqe_misc = le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_NIC_CQE_MISC_IDX]);
|
|
if (cqe_misc & NES_NIC_CQE_SQ) {
|
|
sq_cqes++;
|
|
wqe_fragment_index = 1;
|
|
nic_sqe = &nesnic->sq_vbase[nesnic->sq_tail];
|
|
skb = nesnic->tx_skb[nesnic->sq_tail];
|
|
wqe_fragment_length = (__le16 *)&nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_0_TAG_IDX];
|
|
/* bump past the vlan tag */
|
|
wqe_fragment_length++;
|
|
if (le16_to_cpu(wqe_fragment_length[wqe_fragment_index]) != 0) {
|
|
u64temp = (u64) le32_to_cpu(nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_LOW_IDX +
|
|
wqe_fragment_index * 2]);
|
|
u64temp += ((u64)le32_to_cpu(nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_HIGH_IDX +
|
|
wqe_fragment_index * 2])) << 32;
|
|
bus_address = (dma_addr_t)u64temp;
|
|
if (test_and_clear_bit(nesnic->sq_tail, nesnic->first_frag_overflow)) {
|
|
pci_unmap_single(nesdev->pcidev,
|
|
bus_address,
|
|
le16_to_cpu(wqe_fragment_length[wqe_fragment_index++]),
|
|
PCI_DMA_TODEVICE);
|
|
}
|
|
for (; wqe_fragment_index < 5; wqe_fragment_index++) {
|
|
if (wqe_fragment_length[wqe_fragment_index]) {
|
|
u64temp = le32_to_cpu(nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_LOW_IDX +
|
|
wqe_fragment_index * 2]);
|
|
u64temp += ((u64)le32_to_cpu(nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_HIGH_IDX
|
|
+ wqe_fragment_index * 2])) <<32;
|
|
bus_address = (dma_addr_t)u64temp;
|
|
pci_unmap_page(nesdev->pcidev,
|
|
bus_address,
|
|
le16_to_cpu(wqe_fragment_length[wqe_fragment_index]),
|
|
PCI_DMA_TODEVICE);
|
|
} else
|
|
break;
|
|
}
|
|
}
|
|
if (skb)
|
|
dev_kfree_skb_any(skb);
|
|
nesnic->sq_tail++;
|
|
nesnic->sq_tail &= nesnic->sq_size-1;
|
|
if (sq_cqes > 128) {
|
|
barrier();
|
|
/* restart the queue if it had been stopped */
|
|
if (netif_queue_stopped(nesvnic->netdev))
|
|
netif_wake_queue(nesvnic->netdev);
|
|
sq_cqes = 0;
|
|
}
|
|
} else {
|
|
rqes_processed ++;
|
|
|
|
cq->rx_cqes_completed++;
|
|
cq->rx_pkts_indicated++;
|
|
rx_pkt_size = cqe_misc & 0x0000ffff;
|
|
nic_rqe = &nesnic->rq_vbase[nesnic->rq_tail];
|
|
/* Get the skb */
|
|
rx_skb = nesnic->rx_skb[nesnic->rq_tail];
|
|
nic_rqe = &nesnic->rq_vbase[nesvnic->nic.rq_tail];
|
|
bus_address = (dma_addr_t)le32_to_cpu(nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_LOW_IDX]);
|
|
bus_address += ((u64)le32_to_cpu(nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_HIGH_IDX])) << 32;
|
|
pci_unmap_single(nesdev->pcidev, bus_address,
|
|
nesvnic->max_frame_size, PCI_DMA_FROMDEVICE);
|
|
/* rx_skb->tail = rx_skb->data + rx_pkt_size; */
|
|
/* rx_skb->len = rx_pkt_size; */
|
|
rx_skb->len = 0; /* TODO: see if this is necessary */
|
|
skb_put(rx_skb, rx_pkt_size);
|
|
rx_skb->protocol = eth_type_trans(rx_skb, nesvnic->netdev);
|
|
nesnic->rq_tail++;
|
|
nesnic->rq_tail &= nesnic->rq_size - 1;
|
|
|
|
atomic_inc(&nesvnic->rx_skbs_needed);
|
|
if (atomic_read(&nesvnic->rx_skbs_needed) > (nesvnic->nic.rq_size>>1)) {
|
|
nes_write32(nesdev->regs+NES_CQE_ALLOC,
|
|
cq->cq_number | (cqe_count << 16));
|
|
/* nesadapter->tune_timer.cq_count += cqe_count; */
|
|
nesdev->currcq_count += cqe_count;
|
|
cqe_count = 0;
|
|
nes_replenish_nic_rq(nesvnic);
|
|
}
|
|
pkt_type = (u16)(le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_NIC_CQE_TAG_PKT_TYPE_IDX]));
|
|
cqe_errv = (cqe_misc & NES_NIC_CQE_ERRV_MASK) >> NES_NIC_CQE_ERRV_SHIFT;
|
|
rx_skb->ip_summed = CHECKSUM_NONE;
|
|
|
|
if ((NES_PKT_TYPE_TCPV4_BITS == (pkt_type & NES_PKT_TYPE_TCPV4_MASK)) ||
|
|
(NES_PKT_TYPE_UDPV4_BITS == (pkt_type & NES_PKT_TYPE_UDPV4_MASK))) {
|
|
if ((cqe_errv &
|
|
(NES_NIC_ERRV_BITS_IPV4_CSUM_ERR | NES_NIC_ERRV_BITS_TCPUDP_CSUM_ERR |
|
|
NES_NIC_ERRV_BITS_IPH_ERR | NES_NIC_ERRV_BITS_WQE_OVERRUN)) == 0) {
|
|
if (nesvnic->rx_checksum_disabled == 0) {
|
|
rx_skb->ip_summed = CHECKSUM_UNNECESSARY;
|
|
}
|
|
} else
|
|
nes_debug(NES_DBG_CQ, "%s: unsuccessfully checksummed TCP or UDP packet."
|
|
" errv = 0x%X, pkt_type = 0x%X.\n",
|
|
nesvnic->netdev->name, cqe_errv, pkt_type);
|
|
|
|
} else if ((pkt_type & NES_PKT_TYPE_IPV4_MASK) == NES_PKT_TYPE_IPV4_BITS) {
|
|
if ((cqe_errv &
|
|
(NES_NIC_ERRV_BITS_IPV4_CSUM_ERR | NES_NIC_ERRV_BITS_IPH_ERR |
|
|
NES_NIC_ERRV_BITS_WQE_OVERRUN)) == 0) {
|
|
if (nesvnic->rx_checksum_disabled == 0) {
|
|
rx_skb->ip_summed = CHECKSUM_UNNECESSARY;
|
|
/* nes_debug(NES_DBG_CQ, "%s: Reporting successfully checksummed IPv4 packet.\n",
|
|
nesvnic->netdev->name); */
|
|
}
|
|
} else
|
|
nes_debug(NES_DBG_CQ, "%s: unsuccessfully checksummed TCP or UDP packet."
|
|
" errv = 0x%X, pkt_type = 0x%X.\n",
|
|
nesvnic->netdev->name, cqe_errv, pkt_type);
|
|
}
|
|
/* nes_debug(NES_DBG_CQ, "pkt_type=%x, APBVT_MASK=%x\n",
|
|
pkt_type, (pkt_type & NES_PKT_TYPE_APBVT_MASK)); */
|
|
|
|
if ((pkt_type & NES_PKT_TYPE_APBVT_MASK) == NES_PKT_TYPE_APBVT_BITS) {
|
|
if (nes_cm_recv(rx_skb, nesvnic->netdev))
|
|
rx_skb = NULL;
|
|
}
|
|
if (rx_skb == NULL)
|
|
goto skip_rx_indicate0;
|
|
|
|
|
|
if ((cqe_misc & NES_NIC_CQE_TAG_VALID) &&
|
|
(nesvnic->vlan_grp != NULL)) {
|
|
vlan_tag = (u16)(le32_to_cpu(
|
|
cq->cq_vbase[head].cqe_words[NES_NIC_CQE_TAG_PKT_TYPE_IDX])
|
|
>> 16);
|
|
nes_debug(NES_DBG_CQ, "%s: Reporting stripped VLAN packet. Tag = 0x%04X\n",
|
|
nesvnic->netdev->name, vlan_tag);
|
|
if (nes_use_lro)
|
|
lro_vlan_hwaccel_receive_skb(&nesvnic->lro_mgr, rx_skb,
|
|
nesvnic->vlan_grp, vlan_tag, NULL);
|
|
else
|
|
nes_vlan_rx(rx_skb, nesvnic->vlan_grp, vlan_tag);
|
|
} else {
|
|
if (nes_use_lro)
|
|
lro_receive_skb(&nesvnic->lro_mgr, rx_skb, NULL);
|
|
else
|
|
nes_netif_rx(rx_skb);
|
|
}
|
|
|
|
skip_rx_indicate0:
|
|
;
|
|
/* nesvnic->netstats.rx_packets++; */
|
|
/* nesvnic->netstats.rx_bytes += rx_pkt_size; */
|
|
}
|
|
|
|
cq->cq_vbase[head].cqe_words[NES_NIC_CQE_MISC_IDX] = 0;
|
|
/* Accounting... */
|
|
cqe_count++;
|
|
if (++head >= cq_size)
|
|
head = 0;
|
|
if (cqe_count == 255) {
|
|
/* Replenish Nic CQ */
|
|
nes_write32(nesdev->regs+NES_CQE_ALLOC,
|
|
cq->cq_number | (cqe_count << 16));
|
|
/* nesdev->nesadapter->tune_timer.cq_count += cqe_count; */
|
|
nesdev->currcq_count += cqe_count;
|
|
cqe_count = 0;
|
|
}
|
|
|
|
if (cq->rx_cqes_completed >= nesvnic->budget)
|
|
break;
|
|
} else {
|
|
cq->cqes_pending = 0;
|
|
break;
|
|
}
|
|
|
|
} while (1);
|
|
|
|
if (nes_use_lro)
|
|
lro_flush_all(&nesvnic->lro_mgr);
|
|
if (sq_cqes) {
|
|
barrier();
|
|
/* restart the queue if it had been stopped */
|
|
if (netif_queue_stopped(nesvnic->netdev))
|
|
netif_wake_queue(nesvnic->netdev);
|
|
}
|
|
cq->cq_head = head;
|
|
/* nes_debug(NES_DBG_CQ, "CQ%u Processed = %u cqes, new head = %u.\n",
|
|
cq->cq_number, cqe_count, cq->cq_head); */
|
|
cq->cqe_allocs_pending = cqe_count;
|
|
if (unlikely(nesadapter->et_use_adaptive_rx_coalesce))
|
|
{
|
|
/* nesdev->nesadapter->tune_timer.cq_count += cqe_count; */
|
|
nesdev->currcq_count += cqe_count;
|
|
nes_nic_tune_timer(nesdev);
|
|
}
|
|
if (atomic_read(&nesvnic->rx_skbs_needed))
|
|
nes_replenish_nic_rq(nesvnic);
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_cqp_ce_handler
|
|
*/
|
|
static void nes_cqp_ce_handler(struct nes_device *nesdev, struct nes_hw_cq *cq)
|
|
{
|
|
u64 u64temp;
|
|
unsigned long flags;
|
|
struct nes_hw_cqp *cqp = NULL;
|
|
struct nes_cqp_request *cqp_request;
|
|
struct nes_hw_cqp_wqe *cqp_wqe;
|
|
u32 head;
|
|
u32 cq_size;
|
|
u32 cqe_count=0;
|
|
u32 error_code;
|
|
/* u32 counter; */
|
|
|
|
head = cq->cq_head;
|
|
cq_size = cq->cq_size;
|
|
|
|
do {
|
|
/* process the CQE */
|
|
/* nes_debug(NES_DBG_CQP, "head=%u cqe_words=%08X\n", head,
|
|
le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX])); */
|
|
|
|
if (le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX]) & NES_CQE_VALID) {
|
|
u64temp = (((u64)(le32_to_cpu(cq->cq_vbase[head].
|
|
cqe_words[NES_CQE_COMP_COMP_CTX_HIGH_IDX]))) << 32) |
|
|
((u64)(le32_to_cpu(cq->cq_vbase[head].
|
|
cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX])));
|
|
cqp = *((struct nes_hw_cqp **)&u64temp);
|
|
|
|
error_code = le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_CQE_ERROR_CODE_IDX]);
|
|
if (error_code) {
|
|
nes_debug(NES_DBG_CQP, "Bad Completion code for opcode 0x%02X from CQP,"
|
|
" Major/Minor codes = 0x%04X:%04X.\n",
|
|
le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX])&0x3f,
|
|
(u16)(error_code >> 16),
|
|
(u16)error_code);
|
|
nes_debug(NES_DBG_CQP, "cqp: qp_id=%u, sq_head=%u, sq_tail=%u\n",
|
|
cqp->qp_id, cqp->sq_head, cqp->sq_tail);
|
|
}
|
|
|
|
u64temp = (((u64)(le32_to_cpu(nesdev->cqp.sq_vbase[cqp->sq_tail].
|
|
wqe_words[NES_CQP_WQE_COMP_SCRATCH_HIGH_IDX]))) << 32) |
|
|
((u64)(le32_to_cpu(nesdev->cqp.sq_vbase[cqp->sq_tail].
|
|
wqe_words[NES_CQP_WQE_COMP_SCRATCH_LOW_IDX])));
|
|
cqp_request = *((struct nes_cqp_request **)&u64temp);
|
|
if (cqp_request) {
|
|
if (cqp_request->waiting) {
|
|
/* nes_debug(NES_DBG_CQP, "%s: Waking up requestor\n"); */
|
|
cqp_request->major_code = (u16)(error_code >> 16);
|
|
cqp_request->minor_code = (u16)error_code;
|
|
barrier();
|
|
cqp_request->request_done = 1;
|
|
wake_up(&cqp_request->waitq);
|
|
nes_put_cqp_request(nesdev, cqp_request);
|
|
} else {
|
|
if (cqp_request->callback)
|
|
cqp_request->cqp_callback(nesdev, cqp_request);
|
|
nes_free_cqp_request(nesdev, cqp_request);
|
|
}
|
|
} else {
|
|
wake_up(&nesdev->cqp.waitq);
|
|
}
|
|
|
|
cq->cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX] = 0;
|
|
nes_write32(nesdev->regs + NES_CQE_ALLOC, cq->cq_number | (1 << 16));
|
|
if (++cqp->sq_tail >= cqp->sq_size)
|
|
cqp->sq_tail = 0;
|
|
|
|
/* Accounting... */
|
|
cqe_count++;
|
|
if (++head >= cq_size)
|
|
head = 0;
|
|
} else {
|
|
break;
|
|
}
|
|
} while (1);
|
|
cq->cq_head = head;
|
|
|
|
spin_lock_irqsave(&nesdev->cqp.lock, flags);
|
|
while ((!list_empty(&nesdev->cqp_pending_reqs)) &&
|
|
((((nesdev->cqp.sq_tail+nesdev->cqp.sq_size)-nesdev->cqp.sq_head) &
|
|
(nesdev->cqp.sq_size - 1)) != 1)) {
|
|
cqp_request = list_entry(nesdev->cqp_pending_reqs.next,
|
|
struct nes_cqp_request, list);
|
|
list_del_init(&cqp_request->list);
|
|
head = nesdev->cqp.sq_head++;
|
|
nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
|
|
cqp_wqe = &nesdev->cqp.sq_vbase[head];
|
|
memcpy(cqp_wqe, &cqp_request->cqp_wqe, sizeof(*cqp_wqe));
|
|
barrier();
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_COMP_SCRATCH_LOW_IDX] =
|
|
cpu_to_le32((u32)((unsigned long)cqp_request));
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_COMP_SCRATCH_HIGH_IDX] =
|
|
cpu_to_le32((u32)(upper_32_bits((unsigned long)cqp_request)));
|
|
nes_debug(NES_DBG_CQP, "CQP request %p (opcode 0x%02X) put on CQPs SQ wqe%u.\n",
|
|
cqp_request, le32_to_cpu(cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX])&0x3f, head);
|
|
/* Ring doorbell (1 WQEs) */
|
|
barrier();
|
|
nes_write32(nesdev->regs+NES_WQE_ALLOC, 0x01800000 | nesdev->cqp.qp_id);
|
|
}
|
|
spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
|
|
|
|
/* Arm the CCQ */
|
|
nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
|
|
cq->cq_number);
|
|
nes_read32(nesdev->regs+NES_CQE_ALLOC);
|
|
}
|
|
|
|
|
|
static u8 *locate_mpa(u8 *pkt, u32 aeq_info)
|
|
{
|
|
u16 pkt_len;
|
|
|
|
if (aeq_info & NES_AEQE_Q2_DATA_ETHERNET) {
|
|
/* skip over ethernet header */
|
|
pkt_len = be16_to_cpu(*(u16 *)(pkt + ETH_HLEN - 2));
|
|
pkt += ETH_HLEN;
|
|
|
|
/* Skip over IP and TCP headers */
|
|
pkt += 4 * (pkt[0] & 0x0f);
|
|
pkt += 4 * ((pkt[12] >> 4) & 0x0f);
|
|
}
|
|
return pkt;
|
|
}
|
|
|
|
/* Determine if incoming error pkt is rdma layer */
|
|
static u32 iwarp_opcode(struct nes_qp *nesqp, u32 aeq_info)
|
|
{
|
|
u8 *pkt;
|
|
u16 *mpa;
|
|
u32 opcode = 0xffffffff;
|
|
|
|
if (aeq_info & NES_AEQE_Q2_DATA_WRITTEN) {
|
|
pkt = nesqp->hwqp.q2_vbase + BAD_FRAME_OFFSET;
|
|
mpa = (u16 *)locate_mpa(pkt, aeq_info);
|
|
opcode = be16_to_cpu(mpa[1]) & 0xf;
|
|
}
|
|
|
|
return opcode;
|
|
}
|
|
|
|
/* Build iWARP terminate header */
|
|
static int nes_bld_terminate_hdr(struct nes_qp *nesqp, u16 async_event_id, u32 aeq_info)
|
|
{
|
|
u8 *pkt = nesqp->hwqp.q2_vbase + BAD_FRAME_OFFSET;
|
|
u16 ddp_seg_len;
|
|
int copy_len = 0;
|
|
u8 is_tagged = 0;
|
|
u8 flush_code = 0;
|
|
struct nes_terminate_hdr *termhdr;
|
|
|
|
termhdr = (struct nes_terminate_hdr *)nesqp->hwqp.q2_vbase;
|
|
memset(termhdr, 0, 64);
|
|
|
|
if (aeq_info & NES_AEQE_Q2_DATA_WRITTEN) {
|
|
|
|
/* Use data from offending packet to fill in ddp & rdma hdrs */
|
|
pkt = locate_mpa(pkt, aeq_info);
|
|
ddp_seg_len = be16_to_cpu(*(u16 *)pkt);
|
|
if (ddp_seg_len) {
|
|
copy_len = 2;
|
|
termhdr->hdrct = DDP_LEN_FLAG;
|
|
if (pkt[2] & 0x80) {
|
|
is_tagged = 1;
|
|
if (ddp_seg_len >= TERM_DDP_LEN_TAGGED) {
|
|
copy_len += TERM_DDP_LEN_TAGGED;
|
|
termhdr->hdrct |= DDP_HDR_FLAG;
|
|
}
|
|
} else {
|
|
if (ddp_seg_len >= TERM_DDP_LEN_UNTAGGED) {
|
|
copy_len += TERM_DDP_LEN_UNTAGGED;
|
|
termhdr->hdrct |= DDP_HDR_FLAG;
|
|
}
|
|
|
|
if (ddp_seg_len >= (TERM_DDP_LEN_UNTAGGED + TERM_RDMA_LEN)) {
|
|
if ((pkt[3] & RDMA_OPCODE_MASK) == RDMA_READ_REQ_OPCODE) {
|
|
copy_len += TERM_RDMA_LEN;
|
|
termhdr->hdrct |= RDMA_HDR_FLAG;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
switch (async_event_id) {
|
|
case NES_AEQE_AEID_AMP_UNALLOCATED_STAG:
|
|
switch (iwarp_opcode(nesqp, aeq_info)) {
|
|
case IWARP_OPCODE_WRITE:
|
|
flush_code = IB_WC_LOC_PROT_ERR;
|
|
termhdr->layer_etype = (LAYER_DDP << 4) | DDP_TAGGED_BUFFER;
|
|
termhdr->error_code = DDP_TAGGED_INV_STAG;
|
|
break;
|
|
default:
|
|
flush_code = IB_WC_REM_ACCESS_ERR;
|
|
termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
|
|
termhdr->error_code = RDMAP_INV_STAG;
|
|
}
|
|
break;
|
|
case NES_AEQE_AEID_AMP_INVALID_STAG:
|
|
flush_code = IB_WC_REM_ACCESS_ERR;
|
|
termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
|
|
termhdr->error_code = RDMAP_INV_STAG;
|
|
break;
|
|
case NES_AEQE_AEID_AMP_BAD_QP:
|
|
flush_code = IB_WC_LOC_QP_OP_ERR;
|
|
termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
|
|
termhdr->error_code = DDP_UNTAGGED_INV_QN;
|
|
break;
|
|
case NES_AEQE_AEID_AMP_BAD_STAG_KEY:
|
|
case NES_AEQE_AEID_AMP_BAD_STAG_INDEX:
|
|
switch (iwarp_opcode(nesqp, aeq_info)) {
|
|
case IWARP_OPCODE_SEND_INV:
|
|
case IWARP_OPCODE_SEND_SE_INV:
|
|
flush_code = IB_WC_REM_OP_ERR;
|
|
termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_OP;
|
|
termhdr->error_code = RDMAP_CANT_INV_STAG;
|
|
break;
|
|
default:
|
|
flush_code = IB_WC_REM_ACCESS_ERR;
|
|
termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
|
|
termhdr->error_code = RDMAP_INV_STAG;
|
|
}
|
|
break;
|
|
case NES_AEQE_AEID_AMP_BOUNDS_VIOLATION:
|
|
if (aeq_info & (NES_AEQE_Q2_DATA_ETHERNET | NES_AEQE_Q2_DATA_MPA)) {
|
|
flush_code = IB_WC_LOC_PROT_ERR;
|
|
termhdr->layer_etype = (LAYER_DDP << 4) | DDP_TAGGED_BUFFER;
|
|
termhdr->error_code = DDP_TAGGED_BOUNDS;
|
|
} else {
|
|
flush_code = IB_WC_REM_ACCESS_ERR;
|
|
termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
|
|
termhdr->error_code = RDMAP_INV_BOUNDS;
|
|
}
|
|
break;
|
|
case NES_AEQE_AEID_AMP_RIGHTS_VIOLATION:
|
|
case NES_AEQE_AEID_AMP_INVALIDATE_NO_REMOTE_ACCESS_RIGHTS:
|
|
case NES_AEQE_AEID_PRIV_OPERATION_DENIED:
|
|
flush_code = IB_WC_REM_ACCESS_ERR;
|
|
termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
|
|
termhdr->error_code = RDMAP_ACCESS;
|
|
break;
|
|
case NES_AEQE_AEID_AMP_TO_WRAP:
|
|
flush_code = IB_WC_REM_ACCESS_ERR;
|
|
termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
|
|
termhdr->error_code = RDMAP_TO_WRAP;
|
|
break;
|
|
case NES_AEQE_AEID_AMP_BAD_PD:
|
|
switch (iwarp_opcode(nesqp, aeq_info)) {
|
|
case IWARP_OPCODE_WRITE:
|
|
flush_code = IB_WC_LOC_PROT_ERR;
|
|
termhdr->layer_etype = (LAYER_DDP << 4) | DDP_TAGGED_BUFFER;
|
|
termhdr->error_code = DDP_TAGGED_UNASSOC_STAG;
|
|
break;
|
|
case IWARP_OPCODE_SEND_INV:
|
|
case IWARP_OPCODE_SEND_SE_INV:
|
|
flush_code = IB_WC_REM_ACCESS_ERR;
|
|
termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
|
|
termhdr->error_code = RDMAP_CANT_INV_STAG;
|
|
break;
|
|
default:
|
|
flush_code = IB_WC_REM_ACCESS_ERR;
|
|
termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
|
|
termhdr->error_code = RDMAP_UNASSOC_STAG;
|
|
}
|
|
break;
|
|
case NES_AEQE_AEID_LLP_RECEIVED_MARKER_AND_LENGTH_FIELDS_DONT_MATCH:
|
|
flush_code = IB_WC_LOC_LEN_ERR;
|
|
termhdr->layer_etype = (LAYER_MPA << 4) | DDP_LLP;
|
|
termhdr->error_code = MPA_MARKER;
|
|
break;
|
|
case NES_AEQE_AEID_LLP_RECEIVED_MPA_CRC_ERROR:
|
|
flush_code = IB_WC_GENERAL_ERR;
|
|
termhdr->layer_etype = (LAYER_MPA << 4) | DDP_LLP;
|
|
termhdr->error_code = MPA_CRC;
|
|
break;
|
|
case NES_AEQE_AEID_LLP_SEGMENT_TOO_LARGE:
|
|
case NES_AEQE_AEID_LLP_SEGMENT_TOO_SMALL:
|
|
flush_code = IB_WC_LOC_LEN_ERR;
|
|
termhdr->layer_etype = (LAYER_DDP << 4) | DDP_CATASTROPHIC;
|
|
termhdr->error_code = DDP_CATASTROPHIC_LOCAL;
|
|
break;
|
|
case NES_AEQE_AEID_DDP_LCE_LOCAL_CATASTROPHIC:
|
|
case NES_AEQE_AEID_DDP_NO_L_BIT:
|
|
flush_code = IB_WC_FATAL_ERR;
|
|
termhdr->layer_etype = (LAYER_DDP << 4) | DDP_CATASTROPHIC;
|
|
termhdr->error_code = DDP_CATASTROPHIC_LOCAL;
|
|
break;
|
|
case NES_AEQE_AEID_DDP_INVALID_MSN_GAP_IN_MSN:
|
|
case NES_AEQE_AEID_DDP_INVALID_MSN_RANGE_IS_NOT_VALID:
|
|
flush_code = IB_WC_GENERAL_ERR;
|
|
termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
|
|
termhdr->error_code = DDP_UNTAGGED_INV_MSN_RANGE;
|
|
break;
|
|
case NES_AEQE_AEID_DDP_UBE_DDP_MESSAGE_TOO_LONG_FOR_AVAILABLE_BUFFER:
|
|
flush_code = IB_WC_LOC_LEN_ERR;
|
|
termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
|
|
termhdr->error_code = DDP_UNTAGGED_INV_TOO_LONG;
|
|
break;
|
|
case NES_AEQE_AEID_DDP_UBE_INVALID_DDP_VERSION:
|
|
flush_code = IB_WC_GENERAL_ERR;
|
|
if (is_tagged) {
|
|
termhdr->layer_etype = (LAYER_DDP << 4) | DDP_TAGGED_BUFFER;
|
|
termhdr->error_code = DDP_TAGGED_INV_DDP_VER;
|
|
} else {
|
|
termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
|
|
termhdr->error_code = DDP_UNTAGGED_INV_DDP_VER;
|
|
}
|
|
break;
|
|
case NES_AEQE_AEID_DDP_UBE_INVALID_MO:
|
|
flush_code = IB_WC_GENERAL_ERR;
|
|
termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
|
|
termhdr->error_code = DDP_UNTAGGED_INV_MO;
|
|
break;
|
|
case NES_AEQE_AEID_DDP_UBE_INVALID_MSN_NO_BUFFER_AVAILABLE:
|
|
flush_code = IB_WC_REM_OP_ERR;
|
|
termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
|
|
termhdr->error_code = DDP_UNTAGGED_INV_MSN_NO_BUF;
|
|
break;
|
|
case NES_AEQE_AEID_DDP_UBE_INVALID_QN:
|
|
flush_code = IB_WC_GENERAL_ERR;
|
|
termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
|
|
termhdr->error_code = DDP_UNTAGGED_INV_QN;
|
|
break;
|
|
case NES_AEQE_AEID_RDMAP_ROE_INVALID_RDMAP_VERSION:
|
|
flush_code = IB_WC_GENERAL_ERR;
|
|
termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_OP;
|
|
termhdr->error_code = RDMAP_INV_RDMAP_VER;
|
|
break;
|
|
case NES_AEQE_AEID_RDMAP_ROE_UNEXPECTED_OPCODE:
|
|
flush_code = IB_WC_LOC_QP_OP_ERR;
|
|
termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_OP;
|
|
termhdr->error_code = RDMAP_UNEXPECTED_OP;
|
|
break;
|
|
default:
|
|
flush_code = IB_WC_FATAL_ERR;
|
|
termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_OP;
|
|
termhdr->error_code = RDMAP_UNSPECIFIED;
|
|
break;
|
|
}
|
|
|
|
if (copy_len)
|
|
memcpy(termhdr + 1, pkt, copy_len);
|
|
|
|
if ((flush_code) && ((NES_AEQE_INBOUND_RDMA & aeq_info) == 0)) {
|
|
if (aeq_info & NES_AEQE_SQ)
|
|
nesqp->term_sq_flush_code = flush_code;
|
|
else
|
|
nesqp->term_rq_flush_code = flush_code;
|
|
}
|
|
|
|
return sizeof(struct nes_terminate_hdr) + copy_len;
|
|
}
|
|
|
|
static void nes_terminate_connection(struct nes_device *nesdev, struct nes_qp *nesqp,
|
|
struct nes_hw_aeqe *aeqe, enum ib_event_type eventtype)
|
|
{
|
|
u64 context;
|
|
unsigned long flags;
|
|
u32 aeq_info;
|
|
u16 async_event_id;
|
|
u8 tcp_state;
|
|
u8 iwarp_state;
|
|
u32 termlen = 0;
|
|
u32 mod_qp_flags = NES_CQP_QP_IWARP_STATE_TERMINATE |
|
|
NES_CQP_QP_TERM_DONT_SEND_FIN;
|
|
struct nes_adapter *nesadapter = nesdev->nesadapter;
|
|
|
|
if (nesqp->term_flags & NES_TERM_SENT)
|
|
return; /* Sanity check */
|
|
|
|
aeq_info = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_MISC_IDX]);
|
|
tcp_state = (aeq_info & NES_AEQE_TCP_STATE_MASK) >> NES_AEQE_TCP_STATE_SHIFT;
|
|
iwarp_state = (aeq_info & NES_AEQE_IWARP_STATE_MASK) >> NES_AEQE_IWARP_STATE_SHIFT;
|
|
async_event_id = (u16)aeq_info;
|
|
|
|
context = (unsigned long)nesadapter->qp_table[le32_to_cpu(
|
|
aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]) - NES_FIRST_QPN];
|
|
if (!context) {
|
|
WARN_ON(!context);
|
|
return;
|
|
}
|
|
|
|
nesqp = (struct nes_qp *)(unsigned long)context;
|
|
spin_lock_irqsave(&nesqp->lock, flags);
|
|
nesqp->hw_iwarp_state = iwarp_state;
|
|
nesqp->hw_tcp_state = tcp_state;
|
|
nesqp->last_aeq = async_event_id;
|
|
nesqp->terminate_eventtype = eventtype;
|
|
spin_unlock_irqrestore(&nesqp->lock, flags);
|
|
|
|
if (nesadapter->send_term_ok)
|
|
termlen = nes_bld_terminate_hdr(nesqp, async_event_id, aeq_info);
|
|
else
|
|
mod_qp_flags |= NES_CQP_QP_TERM_DONT_SEND_TERM_MSG;
|
|
|
|
nes_terminate_start_timer(nesqp);
|
|
nesqp->term_flags |= NES_TERM_SENT;
|
|
nes_hw_modify_qp(nesdev, nesqp, mod_qp_flags, termlen, 0);
|
|
}
|
|
|
|
static void nes_terminate_send_fin(struct nes_device *nesdev,
|
|
struct nes_qp *nesqp, struct nes_hw_aeqe *aeqe)
|
|
{
|
|
u32 aeq_info;
|
|
u16 async_event_id;
|
|
u8 tcp_state;
|
|
u8 iwarp_state;
|
|
unsigned long flags;
|
|
|
|
aeq_info = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_MISC_IDX]);
|
|
tcp_state = (aeq_info & NES_AEQE_TCP_STATE_MASK) >> NES_AEQE_TCP_STATE_SHIFT;
|
|
iwarp_state = (aeq_info & NES_AEQE_IWARP_STATE_MASK) >> NES_AEQE_IWARP_STATE_SHIFT;
|
|
async_event_id = (u16)aeq_info;
|
|
|
|
spin_lock_irqsave(&nesqp->lock, flags);
|
|
nesqp->hw_iwarp_state = iwarp_state;
|
|
nesqp->hw_tcp_state = tcp_state;
|
|
nesqp->last_aeq = async_event_id;
|
|
spin_unlock_irqrestore(&nesqp->lock, flags);
|
|
|
|
/* Send the fin only */
|
|
nes_hw_modify_qp(nesdev, nesqp, NES_CQP_QP_IWARP_STATE_TERMINATE |
|
|
NES_CQP_QP_TERM_DONT_SEND_TERM_MSG, 0, 0);
|
|
}
|
|
|
|
/* Cleanup after a terminate sent or received */
|
|
static void nes_terminate_done(struct nes_qp *nesqp, int timeout_occurred)
|
|
{
|
|
u32 next_iwarp_state = NES_CQP_QP_IWARP_STATE_ERROR;
|
|
unsigned long flags;
|
|
struct nes_vnic *nesvnic = to_nesvnic(nesqp->ibqp.device);
|
|
struct nes_device *nesdev = nesvnic->nesdev;
|
|
u8 first_time = 0;
|
|
|
|
spin_lock_irqsave(&nesqp->lock, flags);
|
|
if (nesqp->hte_added) {
|
|
nesqp->hte_added = 0;
|
|
next_iwarp_state |= NES_CQP_QP_DEL_HTE;
|
|
}
|
|
|
|
first_time = (nesqp->term_flags & NES_TERM_DONE) == 0;
|
|
nesqp->term_flags |= NES_TERM_DONE;
|
|
spin_unlock_irqrestore(&nesqp->lock, flags);
|
|
|
|
/* Make sure we go through this only once */
|
|
if (first_time) {
|
|
if (timeout_occurred == 0)
|
|
del_timer(&nesqp->terminate_timer);
|
|
else
|
|
next_iwarp_state |= NES_CQP_QP_RESET;
|
|
|
|
nes_hw_modify_qp(nesdev, nesqp, next_iwarp_state, 0, 0);
|
|
nes_cm_disconn(nesqp);
|
|
}
|
|
}
|
|
|
|
static void nes_terminate_received(struct nes_device *nesdev,
|
|
struct nes_qp *nesqp, struct nes_hw_aeqe *aeqe)
|
|
{
|
|
u32 aeq_info;
|
|
u8 *pkt;
|
|
u32 *mpa;
|
|
u8 ddp_ctl;
|
|
u8 rdma_ctl;
|
|
u16 aeq_id = 0;
|
|
|
|
aeq_info = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_MISC_IDX]);
|
|
if (aeq_info & NES_AEQE_Q2_DATA_WRITTEN) {
|
|
/* Terminate is not a performance path so the silicon */
|
|
/* did not validate the frame - do it now */
|
|
pkt = nesqp->hwqp.q2_vbase + BAD_FRAME_OFFSET;
|
|
mpa = (u32 *)locate_mpa(pkt, aeq_info);
|
|
ddp_ctl = (be32_to_cpu(mpa[0]) >> 8) & 0xff;
|
|
rdma_ctl = be32_to_cpu(mpa[0]) & 0xff;
|
|
if ((ddp_ctl & 0xc0) != 0x40)
|
|
aeq_id = NES_AEQE_AEID_DDP_LCE_LOCAL_CATASTROPHIC;
|
|
else if ((ddp_ctl & 0x03) != 1)
|
|
aeq_id = NES_AEQE_AEID_DDP_UBE_INVALID_DDP_VERSION;
|
|
else if (be32_to_cpu(mpa[2]) != 2)
|
|
aeq_id = NES_AEQE_AEID_DDP_UBE_INVALID_QN;
|
|
else if (be32_to_cpu(mpa[3]) != 1)
|
|
aeq_id = NES_AEQE_AEID_DDP_INVALID_MSN_GAP_IN_MSN;
|
|
else if (be32_to_cpu(mpa[4]) != 0)
|
|
aeq_id = NES_AEQE_AEID_DDP_UBE_INVALID_MO;
|
|
else if ((rdma_ctl & 0xc0) != 0x40)
|
|
aeq_id = NES_AEQE_AEID_RDMAP_ROE_INVALID_RDMAP_VERSION;
|
|
|
|
if (aeq_id) {
|
|
/* Bad terminate recvd - send back a terminate */
|
|
aeq_info = (aeq_info & 0xffff0000) | aeq_id;
|
|
aeqe->aeqe_words[NES_AEQE_MISC_IDX] = cpu_to_le32(aeq_info);
|
|
nes_terminate_connection(nesdev, nesqp, aeqe, IB_EVENT_QP_FATAL);
|
|
return;
|
|
}
|
|
}
|
|
|
|
nesqp->term_flags |= NES_TERM_RCVD;
|
|
nesqp->terminate_eventtype = IB_EVENT_QP_FATAL;
|
|
nes_terminate_start_timer(nesqp);
|
|
nes_terminate_send_fin(nesdev, nesqp, aeqe);
|
|
}
|
|
|
|
/* Timeout routine in case terminate fails to complete */
|
|
static void nes_terminate_timeout(unsigned long context)
|
|
{
|
|
struct nes_qp *nesqp = (struct nes_qp *)(unsigned long)context;
|
|
|
|
nes_terminate_done(nesqp, 1);
|
|
}
|
|
|
|
/* Set a timer in case hw cannot complete the terminate sequence */
|
|
static void nes_terminate_start_timer(struct nes_qp *nesqp)
|
|
{
|
|
init_timer(&nesqp->terminate_timer);
|
|
nesqp->terminate_timer.function = nes_terminate_timeout;
|
|
nesqp->terminate_timer.expires = jiffies + HZ;
|
|
nesqp->terminate_timer.data = (unsigned long)nesqp;
|
|
add_timer(&nesqp->terminate_timer);
|
|
}
|
|
|
|
/**
|
|
* nes_process_iwarp_aeqe
|
|
*/
|
|
static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
|
|
struct nes_hw_aeqe *aeqe)
|
|
{
|
|
u64 context;
|
|
unsigned long flags;
|
|
struct nes_qp *nesqp;
|
|
struct nes_hw_cq *hw_cq;
|
|
struct nes_cq *nescq;
|
|
int resource_allocated;
|
|
struct nes_adapter *nesadapter = nesdev->nesadapter;
|
|
u32 aeq_info;
|
|
u32 next_iwarp_state = 0;
|
|
u16 async_event_id;
|
|
u8 tcp_state;
|
|
u8 iwarp_state;
|
|
struct ib_event ibevent;
|
|
|
|
nes_debug(NES_DBG_AEQ, "\n");
|
|
aeq_info = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_MISC_IDX]);
|
|
if ((NES_AEQE_INBOUND_RDMA & aeq_info) || (!(NES_AEQE_QP & aeq_info))) {
|
|
context = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_CTXT_LOW_IDX]);
|
|
context += ((u64)le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_CTXT_HIGH_IDX])) << 32;
|
|
} else {
|
|
context = (unsigned long)nesadapter->qp_table[le32_to_cpu(
|
|
aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]) - NES_FIRST_QPN];
|
|
BUG_ON(!context);
|
|
}
|
|
|
|
/* context is nesqp unless async_event_id == CQ ERROR */
|
|
nesqp = (struct nes_qp *)(unsigned long)context;
|
|
async_event_id = (u16)aeq_info;
|
|
tcp_state = (aeq_info & NES_AEQE_TCP_STATE_MASK) >> NES_AEQE_TCP_STATE_SHIFT;
|
|
iwarp_state = (aeq_info & NES_AEQE_IWARP_STATE_MASK) >> NES_AEQE_IWARP_STATE_SHIFT;
|
|
nes_debug(NES_DBG_AEQ, "aeid = 0x%04X, qp-cq id = %d, aeqe = %p,"
|
|
" Tcp state = %s, iWARP state = %s\n",
|
|
async_event_id,
|
|
le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]), aeqe,
|
|
nes_tcp_state_str[tcp_state], nes_iwarp_state_str[iwarp_state]);
|
|
|
|
switch (async_event_id) {
|
|
case NES_AEQE_AEID_LLP_FIN_RECEIVED:
|
|
if (nesqp->term_flags)
|
|
return; /* Ignore it, wait for close complete */
|
|
|
|
if (atomic_inc_return(&nesqp->close_timer_started) == 1) {
|
|
nesqp->cm_id->add_ref(nesqp->cm_id);
|
|
schedule_nes_timer(nesqp->cm_node, (struct sk_buff *)nesqp,
|
|
NES_TIMER_TYPE_CLOSE, 1, 0);
|
|
nes_debug(NES_DBG_AEQ, "QP%u Not decrementing QP refcount (%d),"
|
|
" need ae to finish up, original_last_aeq = 0x%04X."
|
|
" last_aeq = 0x%04X, scheduling timer. TCP state = %d\n",
|
|
nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount),
|
|
async_event_id, nesqp->last_aeq, tcp_state);
|
|
}
|
|
|
|
break;
|
|
case NES_AEQE_AEID_LLP_CLOSE_COMPLETE:
|
|
if (nesqp->term_flags) {
|
|
nes_terminate_done(nesqp, 0);
|
|
return;
|
|
}
|
|
spin_lock_irqsave(&nesqp->lock, flags);
|
|
nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_CLOSING;
|
|
spin_unlock_irqrestore(&nesqp->lock, flags);
|
|
nes_hw_modify_qp(nesdev, nesqp, NES_CQP_QP_IWARP_STATE_CLOSING, 0, 0);
|
|
nes_cm_disconn(nesqp);
|
|
break;
|
|
|
|
case NES_AEQE_AEID_RESET_SENT:
|
|
tcp_state = NES_AEQE_TCP_STATE_CLOSED;
|
|
spin_lock_irqsave(&nesqp->lock, flags);
|
|
nesqp->hw_iwarp_state = iwarp_state;
|
|
nesqp->hw_tcp_state = tcp_state;
|
|
nesqp->last_aeq = async_event_id;
|
|
nesqp->hte_added = 0;
|
|
spin_unlock_irqrestore(&nesqp->lock, flags);
|
|
next_iwarp_state = NES_CQP_QP_IWARP_STATE_ERROR | NES_CQP_QP_DEL_HTE;
|
|
nes_hw_modify_qp(nesdev, nesqp, next_iwarp_state, 0, 0);
|
|
nes_cm_disconn(nesqp);
|
|
break;
|
|
|
|
case NES_AEQE_AEID_LLP_CONNECTION_RESET:
|
|
if (atomic_read(&nesqp->close_timer_started))
|
|
return;
|
|
spin_lock_irqsave(&nesqp->lock, flags);
|
|
nesqp->hw_iwarp_state = iwarp_state;
|
|
nesqp->hw_tcp_state = tcp_state;
|
|
nesqp->last_aeq = async_event_id;
|
|
spin_unlock_irqrestore(&nesqp->lock, flags);
|
|
nes_cm_disconn(nesqp);
|
|
break;
|
|
|
|
case NES_AEQE_AEID_TERMINATE_SENT:
|
|
nes_terminate_send_fin(nesdev, nesqp, aeqe);
|
|
break;
|
|
|
|
case NES_AEQE_AEID_LLP_TERMINATE_RECEIVED:
|
|
nes_terminate_received(nesdev, nesqp, aeqe);
|
|
break;
|
|
|
|
case NES_AEQE_AEID_AMP_BAD_STAG_KEY:
|
|
case NES_AEQE_AEID_AMP_BAD_STAG_INDEX:
|
|
case NES_AEQE_AEID_AMP_UNALLOCATED_STAG:
|
|
case NES_AEQE_AEID_AMP_INVALID_STAG:
|
|
case NES_AEQE_AEID_AMP_RIGHTS_VIOLATION:
|
|
case NES_AEQE_AEID_AMP_INVALIDATE_NO_REMOTE_ACCESS_RIGHTS:
|
|
case NES_AEQE_AEID_PRIV_OPERATION_DENIED:
|
|
case NES_AEQE_AEID_DDP_UBE_DDP_MESSAGE_TOO_LONG_FOR_AVAILABLE_BUFFER:
|
|
case NES_AEQE_AEID_AMP_BOUNDS_VIOLATION:
|
|
case NES_AEQE_AEID_AMP_TO_WRAP:
|
|
printk(KERN_ERR PFX "QP[%u] async_event_id=0x%04X IB_EVENT_QP_ACCESS_ERR\n",
|
|
nesqp->hwqp.qp_id, async_event_id);
|
|
nes_terminate_connection(nesdev, nesqp, aeqe, IB_EVENT_QP_ACCESS_ERR);
|
|
break;
|
|
|
|
case NES_AEQE_AEID_LLP_SEGMENT_TOO_LARGE:
|
|
case NES_AEQE_AEID_LLP_SEGMENT_TOO_SMALL:
|
|
case NES_AEQE_AEID_DDP_UBE_INVALID_MO:
|
|
case NES_AEQE_AEID_DDP_UBE_INVALID_QN:
|
|
if (iwarp_opcode(nesqp, aeq_info) > IWARP_OPCODE_TERM) {
|
|
aeq_info &= 0xffff0000;
|
|
aeq_info |= NES_AEQE_AEID_RDMAP_ROE_UNEXPECTED_OPCODE;
|
|
aeqe->aeqe_words[NES_AEQE_MISC_IDX] = cpu_to_le32(aeq_info);
|
|
}
|
|
|
|
case NES_AEQE_AEID_RDMAP_ROE_BAD_LLP_CLOSE:
|
|
case NES_AEQE_AEID_LLP_TOO_MANY_RETRIES:
|
|
case NES_AEQE_AEID_DDP_UBE_INVALID_MSN_NO_BUFFER_AVAILABLE:
|
|
case NES_AEQE_AEID_LLP_RECEIVED_MPA_CRC_ERROR:
|
|
case NES_AEQE_AEID_AMP_BAD_QP:
|
|
case NES_AEQE_AEID_LLP_RECEIVED_MARKER_AND_LENGTH_FIELDS_DONT_MATCH:
|
|
case NES_AEQE_AEID_DDP_LCE_LOCAL_CATASTROPHIC:
|
|
case NES_AEQE_AEID_DDP_NO_L_BIT:
|
|
case NES_AEQE_AEID_DDP_INVALID_MSN_GAP_IN_MSN:
|
|
case NES_AEQE_AEID_DDP_INVALID_MSN_RANGE_IS_NOT_VALID:
|
|
case NES_AEQE_AEID_DDP_UBE_INVALID_DDP_VERSION:
|
|
case NES_AEQE_AEID_RDMAP_ROE_INVALID_RDMAP_VERSION:
|
|
case NES_AEQE_AEID_RDMAP_ROE_UNEXPECTED_OPCODE:
|
|
case NES_AEQE_AEID_AMP_BAD_PD:
|
|
case NES_AEQE_AEID_AMP_FASTREG_SHARED:
|
|
case NES_AEQE_AEID_AMP_FASTREG_VALID_STAG:
|
|
case NES_AEQE_AEID_AMP_FASTREG_MW_STAG:
|
|
case NES_AEQE_AEID_AMP_FASTREG_INVALID_RIGHTS:
|
|
case NES_AEQE_AEID_AMP_FASTREG_PBL_TABLE_OVERFLOW:
|
|
case NES_AEQE_AEID_AMP_FASTREG_INVALID_LENGTH:
|
|
case NES_AEQE_AEID_AMP_INVALIDATE_SHARED:
|
|
case NES_AEQE_AEID_AMP_INVALIDATE_MR_WITH_BOUND_WINDOWS:
|
|
case NES_AEQE_AEID_AMP_MWBIND_VALID_STAG:
|
|
case NES_AEQE_AEID_AMP_MWBIND_OF_MR_STAG:
|
|
case NES_AEQE_AEID_AMP_MWBIND_TO_ZERO_BASED_STAG:
|
|
case NES_AEQE_AEID_AMP_MWBIND_TO_MW_STAG:
|
|
case NES_AEQE_AEID_AMP_MWBIND_INVALID_RIGHTS:
|
|
case NES_AEQE_AEID_AMP_MWBIND_INVALID_BOUNDS:
|
|
case NES_AEQE_AEID_AMP_MWBIND_TO_INVALID_PARENT:
|
|
case NES_AEQE_AEID_AMP_MWBIND_BIND_DISABLED:
|
|
case NES_AEQE_AEID_BAD_CLOSE:
|
|
case NES_AEQE_AEID_RDMA_READ_WHILE_ORD_ZERO:
|
|
case NES_AEQE_AEID_STAG_ZERO_INVALID:
|
|
case NES_AEQE_AEID_ROE_INVALID_RDMA_READ_REQUEST:
|
|
case NES_AEQE_AEID_ROE_INVALID_RDMA_WRITE_OR_READ_RESP:
|
|
printk(KERN_ERR PFX "QP[%u] async_event_id=0x%04X IB_EVENT_QP_FATAL\n",
|
|
nesqp->hwqp.qp_id, async_event_id);
|
|
nes_terminate_connection(nesdev, nesqp, aeqe, IB_EVENT_QP_FATAL);
|
|
break;
|
|
|
|
case NES_AEQE_AEID_CQ_OPERATION_ERROR:
|
|
context <<= 1;
|
|
nes_debug(NES_DBG_AEQ, "Processing an NES_AEQE_AEID_CQ_OPERATION_ERROR event on CQ%u, %p\n",
|
|
le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]), (void *)(unsigned long)context);
|
|
resource_allocated = nes_is_resource_allocated(nesadapter, nesadapter->allocated_cqs,
|
|
le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]));
|
|
if (resource_allocated) {
|
|
printk(KERN_ERR PFX "%s: Processing an NES_AEQE_AEID_CQ_OPERATION_ERROR event on CQ%u\n",
|
|
__func__, le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]));
|
|
hw_cq = (struct nes_hw_cq *)(unsigned long)context;
|
|
if (hw_cq) {
|
|
nescq = container_of(hw_cq, struct nes_cq, hw_cq);
|
|
if (nescq->ibcq.event_handler) {
|
|
ibevent.device = nescq->ibcq.device;
|
|
ibevent.event = IB_EVENT_CQ_ERR;
|
|
ibevent.element.cq = &nescq->ibcq;
|
|
nescq->ibcq.event_handler(&ibevent, nescq->ibcq.cq_context);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
nes_debug(NES_DBG_AEQ, "Processing an iWARP related AE for QP, misc = 0x%04X\n",
|
|
async_event_id);
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* nes_iwarp_ce_handler
|
|
*/
|
|
void nes_iwarp_ce_handler(struct nes_device *nesdev, struct nes_hw_cq *hw_cq)
|
|
{
|
|
struct nes_cq *nescq = container_of(hw_cq, struct nes_cq, hw_cq);
|
|
|
|
/* nes_debug(NES_DBG_CQ, "Processing completion event for iWARP CQ%u.\n",
|
|
nescq->hw_cq.cq_number); */
|
|
nes_write32(nesdev->regs+NES_CQ_ACK, nescq->hw_cq.cq_number);
|
|
|
|
if (nescq->ibcq.comp_handler)
|
|
nescq->ibcq.comp_handler(&nescq->ibcq, nescq->ibcq.cq_context);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_manage_apbvt()
|
|
*/
|
|
int nes_manage_apbvt(struct nes_vnic *nesvnic, u32 accel_local_port,
|
|
u32 nic_index, u32 add_port)
|
|
{
|
|
struct nes_device *nesdev = nesvnic->nesdev;
|
|
struct nes_hw_cqp_wqe *cqp_wqe;
|
|
struct nes_cqp_request *cqp_request;
|
|
int ret = 0;
|
|
u16 major_code;
|
|
|
|
/* Send manage APBVT request to CQP */
|
|
cqp_request = nes_get_cqp_request(nesdev);
|
|
if (cqp_request == NULL) {
|
|
nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
|
|
return -ENOMEM;
|
|
}
|
|
cqp_request->waiting = 1;
|
|
cqp_wqe = &cqp_request->cqp_wqe;
|
|
|
|
nes_debug(NES_DBG_QP, "%s APBV for local port=%u(0x%04x), nic_index=%u\n",
|
|
(add_port == NES_MANAGE_APBVT_ADD) ? "ADD" : "DEL",
|
|
accel_local_port, accel_local_port, nic_index);
|
|
|
|
nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
|
|
set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, (NES_CQP_MANAGE_APBVT |
|
|
((add_port == NES_MANAGE_APBVT_ADD) ? NES_CQP_APBVT_ADD : 0)));
|
|
set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX,
|
|
((nic_index << NES_CQP_APBVT_NIC_SHIFT) | accel_local_port));
|
|
|
|
nes_debug(NES_DBG_QP, "Waiting for CQP completion for APBVT.\n");
|
|
|
|
atomic_set(&cqp_request->refcount, 2);
|
|
nes_post_cqp_request(nesdev, cqp_request);
|
|
|
|
if (add_port == NES_MANAGE_APBVT_ADD)
|
|
ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0),
|
|
NES_EVENT_TIMEOUT);
|
|
nes_debug(NES_DBG_QP, "Completed, ret=%u, CQP Major:Minor codes = 0x%04X:0x%04X\n",
|
|
ret, cqp_request->major_code, cqp_request->minor_code);
|
|
major_code = cqp_request->major_code;
|
|
|
|
nes_put_cqp_request(nesdev, cqp_request);
|
|
|
|
if (!ret)
|
|
return -ETIME;
|
|
else if (major_code)
|
|
return -EIO;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* nes_manage_arp_cache
|
|
*/
|
|
void nes_manage_arp_cache(struct net_device *netdev, unsigned char *mac_addr,
|
|
u32 ip_addr, u32 action)
|
|
{
|
|
struct nes_hw_cqp_wqe *cqp_wqe;
|
|
struct nes_vnic *nesvnic = netdev_priv(netdev);
|
|
struct nes_device *nesdev;
|
|
struct nes_cqp_request *cqp_request;
|
|
int arp_index;
|
|
|
|
nesdev = nesvnic->nesdev;
|
|
arp_index = nes_arp_table(nesdev, ip_addr, mac_addr, action);
|
|
if (arp_index == -1) {
|
|
return;
|
|
}
|
|
|
|
/* update the ARP entry */
|
|
cqp_request = nes_get_cqp_request(nesdev);
|
|
if (cqp_request == NULL) {
|
|
nes_debug(NES_DBG_NETDEV, "Failed to get a cqp_request.\n");
|
|
return;
|
|
}
|
|
cqp_request->waiting = 0;
|
|
cqp_wqe = &cqp_request->cqp_wqe;
|
|
nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
|
|
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(
|
|
NES_CQP_MANAGE_ARP_CACHE | NES_CQP_ARP_PERM);
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] |= cpu_to_le32(
|
|
(u32)PCI_FUNC(nesdev->pcidev->devfn) << NES_CQP_ARP_AEQ_INDEX_SHIFT);
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(arp_index);
|
|
|
|
if (action == NES_ARP_ADD) {
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] |= cpu_to_le32(NES_CQP_ARP_VALID);
|
|
cqp_wqe->wqe_words[NES_CQP_ARP_WQE_MAC_ADDR_LOW_IDX] = cpu_to_le32(
|
|
(((u32)mac_addr[2]) << 24) | (((u32)mac_addr[3]) << 16) |
|
|
(((u32)mac_addr[4]) << 8) | (u32)mac_addr[5]);
|
|
cqp_wqe->wqe_words[NES_CQP_ARP_WQE_MAC_HIGH_IDX] = cpu_to_le32(
|
|
(((u32)mac_addr[0]) << 16) | (u32)mac_addr[1]);
|
|
} else {
|
|
cqp_wqe->wqe_words[NES_CQP_ARP_WQE_MAC_ADDR_LOW_IDX] = 0;
|
|
cqp_wqe->wqe_words[NES_CQP_ARP_WQE_MAC_HIGH_IDX] = 0;
|
|
}
|
|
|
|
nes_debug(NES_DBG_NETDEV, "Not waiting for CQP, cqp.sq_head=%u, cqp.sq_tail=%u\n",
|
|
nesdev->cqp.sq_head, nesdev->cqp.sq_tail);
|
|
|
|
atomic_set(&cqp_request->refcount, 1);
|
|
nes_post_cqp_request(nesdev, cqp_request);
|
|
}
|
|
|
|
|
|
/**
|
|
* flush_wqes
|
|
*/
|
|
void flush_wqes(struct nes_device *nesdev, struct nes_qp *nesqp,
|
|
u32 which_wq, u32 wait_completion)
|
|
{
|
|
struct nes_cqp_request *cqp_request;
|
|
struct nes_hw_cqp_wqe *cqp_wqe;
|
|
u32 sq_code = (NES_IWARP_CQE_MAJOR_FLUSH << 16) | NES_IWARP_CQE_MINOR_FLUSH;
|
|
u32 rq_code = (NES_IWARP_CQE_MAJOR_FLUSH << 16) | NES_IWARP_CQE_MINOR_FLUSH;
|
|
int ret;
|
|
|
|
cqp_request = nes_get_cqp_request(nesdev);
|
|
if (cqp_request == NULL) {
|
|
nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
|
|
return;
|
|
}
|
|
if (wait_completion) {
|
|
cqp_request->waiting = 1;
|
|
atomic_set(&cqp_request->refcount, 2);
|
|
} else {
|
|
cqp_request->waiting = 0;
|
|
}
|
|
cqp_wqe = &cqp_request->cqp_wqe;
|
|
nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
|
|
|
|
/* If wqe in error was identified, set code to be put into cqe */
|
|
if ((nesqp->term_sq_flush_code) && (which_wq & NES_CQP_FLUSH_SQ)) {
|
|
which_wq |= NES_CQP_FLUSH_MAJ_MIN;
|
|
sq_code = (CQE_MAJOR_DRV << 16) | nesqp->term_sq_flush_code;
|
|
nesqp->term_sq_flush_code = 0;
|
|
}
|
|
|
|
if ((nesqp->term_rq_flush_code) && (which_wq & NES_CQP_FLUSH_RQ)) {
|
|
which_wq |= NES_CQP_FLUSH_MAJ_MIN;
|
|
rq_code = (CQE_MAJOR_DRV << 16) | nesqp->term_rq_flush_code;
|
|
nesqp->term_rq_flush_code = 0;
|
|
}
|
|
|
|
if (which_wq & NES_CQP_FLUSH_MAJ_MIN) {
|
|
cqp_wqe->wqe_words[NES_CQP_QP_WQE_FLUSH_SQ_CODE] = cpu_to_le32(sq_code);
|
|
cqp_wqe->wqe_words[NES_CQP_QP_WQE_FLUSH_RQ_CODE] = cpu_to_le32(rq_code);
|
|
}
|
|
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] =
|
|
cpu_to_le32(NES_CQP_FLUSH_WQES | which_wq);
|
|
cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(nesqp->hwqp.qp_id);
|
|
|
|
nes_post_cqp_request(nesdev, cqp_request);
|
|
|
|
if (wait_completion) {
|
|
/* Wait for CQP */
|
|
ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0),
|
|
NES_EVENT_TIMEOUT);
|
|
nes_debug(NES_DBG_QP, "Flush SQ QP WQEs completed, ret=%u,"
|
|
" CQP Major:Minor codes = 0x%04X:0x%04X\n",
|
|
ret, cqp_request->major_code, cqp_request->minor_code);
|
|
nes_put_cqp_request(nesdev, cqp_request);
|
|
}
|
|
}
|