| /* |
| * Copyright (c) 2006 - 2008 NetEffect, Inc. All rights reserved. |
| * |
| * This software is available to you under a choice of one of two |
| * licenses. You may choose to be licensed under the terms of the GNU |
| * General Public License (GPL) Version 2, available from the file |
| * COPYING in the main directory of this source tree, or the |
| * OpenIB.org BSD license below: |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials |
| * provided with the distribution. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| * |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/netdevice.h> |
| #include <linux/etherdevice.h> |
| #include <linux/ip.h> |
| #include <linux/tcp.h> |
| #include <linux/if_vlan.h> |
| #include <linux/inet_lro.h> |
| |
| #include "nes.h" |
| |
| static unsigned int nes_lro_max_aggr = NES_LRO_MAX_AGGR; |
| module_param(nes_lro_max_aggr, uint, 0444); |
| MODULE_PARM_DESC(nes_lro_max_aggr, "NIC LRO max packet aggregation"); |
| |
| static u32 crit_err_count; |
| u32 int_mod_timer_init; |
| u32 int_mod_cq_depth_256; |
| u32 int_mod_cq_depth_128; |
| u32 int_mod_cq_depth_32; |
| u32 int_mod_cq_depth_24; |
| u32 int_mod_cq_depth_16; |
| u32 int_mod_cq_depth_4; |
| u32 int_mod_cq_depth_1; |
| static const u8 nes_max_critical_error_count = 100; |
| #include "nes_cm.h" |
| |
| static void nes_cqp_ce_handler(struct nes_device *nesdev, struct nes_hw_cq *cq); |
| static void nes_init_csr_ne020(struct nes_device *nesdev, u8 hw_rev, u8 port_count); |
| static int nes_init_serdes(struct nes_device *nesdev, u8 hw_rev, u8 port_count, |
| struct nes_adapter *nesadapter, u8 OneG_Mode); |
| static void nes_nic_napi_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq); |
| static void nes_process_aeq(struct nes_device *nesdev, struct nes_hw_aeq *aeq); |
| static void nes_process_ceq(struct nes_device *nesdev, struct nes_hw_ceq *ceq); |
| static void nes_process_iwarp_aeqe(struct nes_device *nesdev, |
| struct nes_hw_aeqe *aeqe); |
| static void process_critical_error(struct nes_device *nesdev); |
| static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number); |
| static unsigned int nes_reset_adapter_ne020(struct nes_device *nesdev, u8 *OneG_Mode); |
| |
| #ifdef CONFIG_INFINIBAND_NES_DEBUG |
| static unsigned char *nes_iwarp_state_str[] = { |
| "Non-Existant", |
| "Idle", |
| "RTS", |
| "Closing", |
| "RSVD1", |
| "Terminate", |
| "Error", |
| "RSVD2", |
| }; |
| |
| static unsigned char *nes_tcp_state_str[] = { |
| "Non-Existant", |
| "Closed", |
| "Listen", |
| "SYN Sent", |
| "SYN Rcvd", |
| "Established", |
| "Close Wait", |
| "FIN Wait 1", |
| "Closing", |
| "Last Ack", |
| "FIN Wait 2", |
| "Time Wait", |
| "RSVD1", |
| "RSVD2", |
| "RSVD3", |
| "RSVD4", |
| }; |
| #endif |
| |
| |
| /** |
| * nes_nic_init_timer_defaults |
| */ |
| void nes_nic_init_timer_defaults(struct nes_device *nesdev, u8 jumbomode) |
| { |
| unsigned long flags; |
| struct nes_adapter *nesadapter = nesdev->nesadapter; |
| struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer; |
| |
| spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags); |
| |
| shared_timer->timer_in_use_min = NES_NIC_FAST_TIMER_LOW; |
| shared_timer->timer_in_use_max = NES_NIC_FAST_TIMER_HIGH; |
| if (jumbomode) { |
| shared_timer->threshold_low = DEFAULT_JUMBO_NES_QL_LOW; |
| shared_timer->threshold_target = DEFAULT_JUMBO_NES_QL_TARGET; |
| shared_timer->threshold_high = DEFAULT_JUMBO_NES_QL_HIGH; |
| } else { |
| shared_timer->threshold_low = DEFAULT_NES_QL_LOW; |
| shared_timer->threshold_target = DEFAULT_NES_QL_TARGET; |
| shared_timer->threshold_high = DEFAULT_NES_QL_HIGH; |
| } |
| |
| /* todo use netdev->mtu to set thresholds */ |
| spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags); |
| } |
| |
| |
| /** |
| * nes_nic_init_timer |
| */ |
| static void nes_nic_init_timer(struct nes_device *nesdev) |
| { |
| unsigned long flags; |
| struct nes_adapter *nesadapter = nesdev->nesadapter; |
| struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer; |
| |
| spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags); |
| |
| if (shared_timer->timer_in_use_old == 0) { |
| nesdev->deepcq_count = 0; |
| shared_timer->timer_direction_upward = 0; |
| shared_timer->timer_direction_downward = 0; |
| shared_timer->timer_in_use = NES_NIC_FAST_TIMER; |
| shared_timer->timer_in_use_old = 0; |
| |
| } |
| if (shared_timer->timer_in_use != shared_timer->timer_in_use_old) { |
| shared_timer->timer_in_use_old = shared_timer->timer_in_use; |
| nes_write32(nesdev->regs+NES_PERIODIC_CONTROL, |
| 0x80000000 | ((u32)(shared_timer->timer_in_use*8))); |
| } |
| /* todo use netdev->mtu to set thresholds */ |
| spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags); |
| } |
| |
| |
| /** |
| * nes_nic_tune_timer |
| */ |
| static void nes_nic_tune_timer(struct nes_device *nesdev) |
| { |
| unsigned long flags; |
| struct nes_adapter *nesadapter = nesdev->nesadapter; |
| struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer; |
| u16 cq_count = nesdev->currcq_count; |
| |
| spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags); |
| |
| if (shared_timer->cq_count_old <= cq_count) |
| shared_timer->cq_direction_downward = 0; |
| else |
| shared_timer->cq_direction_downward++; |
| shared_timer->cq_count_old = cq_count; |
| if (shared_timer->cq_direction_downward > NES_NIC_CQ_DOWNWARD_TREND) { |
| if (cq_count <= shared_timer->threshold_low && |
| shared_timer->threshold_low > 4) { |
| shared_timer->threshold_low = shared_timer->threshold_low/2; |
| shared_timer->cq_direction_downward=0; |
| nesdev->currcq_count = 0; |
| spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags); |
| return; |
| } |
| } |
| |
| if (cq_count > 1) { |
| nesdev->deepcq_count += cq_count; |
| if (cq_count <= shared_timer->threshold_low) { /* increase timer gently */ |
| shared_timer->timer_direction_upward++; |
| shared_timer->timer_direction_downward = 0; |
| } else if (cq_count <= shared_timer->threshold_target) { /* balanced */ |
| shared_timer->timer_direction_upward = 0; |
| shared_timer->timer_direction_downward = 0; |
| } else if (cq_count <= shared_timer->threshold_high) { /* decrease timer gently */ |
| shared_timer->timer_direction_downward++; |
| shared_timer->timer_direction_upward = 0; |
| } else if (cq_count <= (shared_timer->threshold_high) * 2) { |
| shared_timer->timer_in_use -= 2; |
| shared_timer->timer_direction_upward = 0; |
| shared_timer->timer_direction_downward++; |
| } else { |
| shared_timer->timer_in_use -= 4; |
| shared_timer->timer_direction_upward = 0; |
| shared_timer->timer_direction_downward++; |
| } |
| |
| if (shared_timer->timer_direction_upward > 3 ) { /* using history */ |
| shared_timer->timer_in_use += 3; |
| shared_timer->timer_direction_upward = 0; |
| shared_timer->timer_direction_downward = 0; |
| } |
| if (shared_timer->timer_direction_downward > 5) { /* using history */ |
| shared_timer->timer_in_use -= 4 ; |
| shared_timer->timer_direction_downward = 0; |
| shared_timer->timer_direction_upward = 0; |
| } |
| } |
| |
| /* boundary checking */ |
| if (shared_timer->timer_in_use > shared_timer->threshold_high) |
| shared_timer->timer_in_use = shared_timer->threshold_high; |
| else if (shared_timer->timer_in_use < shared_timer->threshold_low) |
| shared_timer->timer_in_use = shared_timer->threshold_low; |
| |
| nesdev->currcq_count = 0; |
| |
| spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags); |
| } |
| |
| |
| /** |
| * nes_init_adapter - initialize adapter |
| */ |
| struct nes_adapter *nes_init_adapter(struct nes_device *nesdev, u8 hw_rev) { |
| struct nes_adapter *nesadapter = NULL; |
| unsigned long num_pds; |
| u32 u32temp; |
| u32 port_count; |
| u16 max_rq_wrs; |
| u16 max_sq_wrs; |
| u32 max_mr; |
| u32 max_256pbl; |
| u32 max_4kpbl; |
| u32 max_qp; |
| u32 max_irrq; |
| u32 max_cq; |
| u32 hte_index_mask; |
| u32 adapter_size; |
| u32 arp_table_size; |
| u16 vendor_id; |
| u8 OneG_Mode; |
| u8 func_index; |
| |
| /* search the list of existing adapters */ |
| list_for_each_entry(nesadapter, &nes_adapter_list, list) { |
| nes_debug(NES_DBG_INIT, "Searching Adapter list for PCI devfn = 0x%X," |
| " adapter PCI slot/bus = %u/%u, pci devices PCI slot/bus = %u/%u, .\n", |
| nesdev->pcidev->devfn, |
| PCI_SLOT(nesadapter->devfn), |
| nesadapter->bus_number, |
| PCI_SLOT(nesdev->pcidev->devfn), |
| nesdev->pcidev->bus->number ); |
| if ((PCI_SLOT(nesadapter->devfn) == PCI_SLOT(nesdev->pcidev->devfn)) && |
| (nesadapter->bus_number == nesdev->pcidev->bus->number)) { |
| nesadapter->ref_count++; |
| return nesadapter; |
| } |
| } |
| |
| /* no adapter found */ |
| num_pds = pci_resource_len(nesdev->pcidev, BAR_1) >> PAGE_SHIFT; |
| if ((hw_rev != NE020_REV) && (hw_rev != NE020_REV1)) { |
| nes_debug(NES_DBG_INIT, "NE020 driver detected unknown hardware revision 0x%x\n", |
| hw_rev); |
| return NULL; |
| } |
| |
| nes_debug(NES_DBG_INIT, "Determine Soft Reset, QP_control=0x%x, CPU0=0x%x, CPU1=0x%x, CPU2=0x%x\n", |
| nes_read_indexed(nesdev, NES_IDX_QP_CONTROL + PCI_FUNC(nesdev->pcidev->devfn) * 8), |
| nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS), |
| nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS + 4), |
| nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS + 8)); |
| |
| nes_debug(NES_DBG_INIT, "Reset and init NE020\n"); |
| |
| |
| if ((port_count = nes_reset_adapter_ne020(nesdev, &OneG_Mode)) == 0) |
| return NULL; |
| |
| max_qp = nes_read_indexed(nesdev, NES_IDX_QP_CTX_SIZE); |
| nes_debug(NES_DBG_INIT, "QP_CTX_SIZE=%u\n", max_qp); |
| |
| u32temp = nes_read_indexed(nesdev, NES_IDX_QUAD_HASH_TABLE_SIZE); |
| if (max_qp > ((u32)1 << (u32temp & 0x001f))) { |
| nes_debug(NES_DBG_INIT, "Reducing Max QPs to %u due to hash table size = 0x%08X\n", |
| max_qp, u32temp); |
| max_qp = (u32)1 << (u32temp & 0x001f); |
| } |
| |
| hte_index_mask = ((u32)1 << ((u32temp & 0x001f)+1))-1; |
| nes_debug(NES_DBG_INIT, "Max QP = %u, hte_index_mask = 0x%08X.\n", |
| max_qp, hte_index_mask); |
| |
| u32temp = nes_read_indexed(nesdev, NES_IDX_IRRQ_COUNT); |
| |
| max_irrq = 1 << (u32temp & 0x001f); |
| |
| if (max_qp > max_irrq) { |
| max_qp = max_irrq; |
| nes_debug(NES_DBG_INIT, "Reducing Max QPs to %u due to Available Q1s.\n", |
| max_qp); |
| } |
| |
| /* there should be no reason to allocate more pds than qps */ |
| if (num_pds > max_qp) |
| num_pds = max_qp; |
| |
| u32temp = nes_read_indexed(nesdev, NES_IDX_MRT_SIZE); |
| max_mr = (u32)8192 << (u32temp & 0x7); |
| |
| u32temp = nes_read_indexed(nesdev, NES_IDX_PBL_REGION_SIZE); |
| max_256pbl = (u32)1 << (u32temp & 0x0000001f); |
| max_4kpbl = (u32)1 << ((u32temp >> 16) & 0x0000001f); |
| max_cq = nes_read_indexed(nesdev, NES_IDX_CQ_CTX_SIZE); |
| |
| u32temp = nes_read_indexed(nesdev, NES_IDX_ARP_CACHE_SIZE); |
| arp_table_size = 1 << u32temp; |
| |
| adapter_size = (sizeof(struct nes_adapter) + |
| (sizeof(unsigned long)-1)) & (~(sizeof(unsigned long)-1)); |
| adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(max_qp); |
| adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(max_mr); |
| adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(max_cq); |
| adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(num_pds); |
| adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(arp_table_size); |
| adapter_size += sizeof(struct nes_qp **) * max_qp; |
| |
| /* allocate a new adapter struct */ |
| nesadapter = kzalloc(adapter_size, GFP_KERNEL); |
| if (nesadapter == NULL) { |
| return NULL; |
| } |
| |
| nes_debug(NES_DBG_INIT, "Allocating new nesadapter @ %p, size = %u (actual size = %u).\n", |
| nesadapter, (u32)sizeof(struct nes_adapter), adapter_size); |
| |
| if (nes_read_eeprom_values(nesdev, nesadapter)) { |
| printk(KERN_ERR PFX "Unable to read EEPROM data.\n"); |
| kfree(nesadapter); |
| return NULL; |
| } |
| |
| if (nes_init_serdes(nesdev, hw_rev, port_count, nesadapter, |
| OneG_Mode)) { |
| kfree(nesadapter); |
| return NULL; |
| } |
| nes_init_csr_ne020(nesdev, hw_rev, port_count); |
| |
| memset(nesadapter->pft_mcast_map, 255, |
| sizeof nesadapter->pft_mcast_map); |
| |
| /* populate the new nesadapter */ |
| nesadapter->devfn = nesdev->pcidev->devfn; |
| nesadapter->bus_number = nesdev->pcidev->bus->number; |
| nesadapter->ref_count = 1; |
| nesadapter->timer_int_req = 0xffff0000; |
| nesadapter->OneG_Mode = OneG_Mode; |
| nesadapter->doorbell_start = nesdev->doorbell_region; |
| |
| /* nesadapter->tick_delta = clk_divisor; */ |
| nesadapter->hw_rev = hw_rev; |
| nesadapter->port_count = port_count; |
| |
| nesadapter->max_qp = max_qp; |
| nesadapter->hte_index_mask = hte_index_mask; |
| nesadapter->max_irrq = max_irrq; |
| nesadapter->max_mr = max_mr; |
| nesadapter->max_256pbl = max_256pbl - 1; |
| nesadapter->max_4kpbl = max_4kpbl - 1; |
| nesadapter->max_cq = max_cq; |
| nesadapter->free_256pbl = max_256pbl - 1; |
| nesadapter->free_4kpbl = max_4kpbl - 1; |
| nesadapter->max_pd = num_pds; |
| nesadapter->arp_table_size = arp_table_size; |
| |
| nesadapter->et_pkt_rate_low = NES_TIMER_ENABLE_LIMIT; |
| if (nes_drv_opt & NES_DRV_OPT_DISABLE_INT_MOD) { |
| nesadapter->et_use_adaptive_rx_coalesce = 0; |
| nesadapter->timer_int_limit = NES_TIMER_INT_LIMIT; |
| nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval; |
| } else { |
| nesadapter->et_use_adaptive_rx_coalesce = 1; |
| nesadapter->timer_int_limit = NES_TIMER_INT_LIMIT_DYNAMIC; |
| nesadapter->et_rx_coalesce_usecs_irq = 0; |
| printk(PFX "%s: Using Adaptive Interrupt Moderation\n", __func__); |
| } |
| /* Setup and enable the periodic timer */ |
| if (nesadapter->et_rx_coalesce_usecs_irq) |
| nes_write32(nesdev->regs+NES_PERIODIC_CONTROL, 0x80000000 | |
| ((u32)(nesadapter->et_rx_coalesce_usecs_irq * 8))); |
| 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; |
| |
| 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 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); |
| } |
| |
| 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 = 32767; |
| |
| 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, 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); |
| |
| 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, |
| 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); |
| 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 serdes_common_control; |
| |
| if (hw_rev != NE020_REV) { |
| /* init serdes 0 */ |
| |
| nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000000FF); |
| if (nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) { |
| serdes_common_control = nes_read_indexed(nesdev, |
| NES_IDX_ETH_SERDES_COMMON_CONTROL0); |
| serdes_common_control |= 0x000000100; |
| nes_write_indexed(nesdev, |
| NES_IDX_ETH_SERDES_COMMON_CONTROL0, |
| serdes_common_control); |
| } else if (!OneG_Mode) { |
| nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_HIGHZ_LANE_MODE0, 0x11110000); |
| } |
| if (((port_count > 1) && |
| (nesadapter->phy_type[0] != NES_PHY_TYPE_PUMA_1G)) || |
| ((port_count > 2) && |
| (nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G))) { |
| /* init serdes 1 */ |
| nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL1, 0x000000FF); |
| if (nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) { |
| serdes_common_control = nes_read_indexed(nesdev, |
| NES_IDX_ETH_SERDES_COMMON_CONTROL1); |
| serdes_common_control |= 0x000000100; |
| nes_write_indexed(nesdev, |
| NES_IDX_ETH_SERDES_COMMON_CONTROL1, |
| serdes_common_control); |
| } else if (!OneG_Mode) { |
| nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_HIGHZ_LANE_MODE1, 0x11110000); |
| } |
| } |
| } 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); |
| } |
| } |
| |
| |
| /** |
| * 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_phy |
| */ |
| int nes_init_phy(struct nes_device *nesdev) |
| { |
| struct nes_adapter *nesadapter = nesdev->nesadapter; |
| u32 counter = 0; |
| u32 sds_common_control0; |
| u32 mac_index = nesdev->mac_index; |
| u32 tx_config = 0; |
| u16 phy_data; |
| u32 temp_phy_data = 0; |
| u32 temp_phy_data2 = 0; |
| u32 i = 0; |
| |
| if ((nesadapter->OneG_Mode) && |
| (nesadapter->phy_type[mac_index] != NES_PHY_TYPE_PUMA_1G)) { |
| nes_debug(NES_DBG_PHY, "1G PHY, mac_index = %d.\n", mac_index); |
| if (nesadapter->phy_type[mac_index] == NES_PHY_TYPE_1G) { |
| printk(PFX "%s: Programming mdc config for 1G\n", __func__); |
| tx_config = nes_read_indexed(nesdev, NES_IDX_MAC_TX_CONFIG); |
| tx_config &= 0xFFFFFFE3; |
| tx_config |= 0x04; |
| nes_write_indexed(nesdev, NES_IDX_MAC_TX_CONFIG, tx_config); |
| } |
| |
| nes_read_1G_phy_reg(nesdev, 1, nesadapter->phy_index[mac_index], &phy_data); |
| nes_debug(NES_DBG_PHY, "Phy data from register 1 phy address %u = 0x%X.\n", |
| nesadapter->phy_index[mac_index], phy_data); |
| nes_write_1G_phy_reg(nesdev, 23, nesadapter->phy_index[mac_index], 0xb000); |
| |
| /* Reset the PHY */ |
| nes_write_1G_phy_reg(nesdev, 0, nesadapter->phy_index[mac_index], 0x8000); |
| udelay(100); |
| counter = 0; |
| do { |
| nes_read_1G_phy_reg(nesdev, 0, nesadapter->phy_index[mac_index], &phy_data); |
| nes_debug(NES_DBG_PHY, "Phy data from register 0 = 0x%X.\n", phy_data); |
| if (counter++ > 100) break; |
| } while (phy_data & 0x8000); |
| |
| /* Setting no phy loopback */ |
| phy_data &= 0xbfff; |
| phy_data |= 0x1140; |
| nes_write_1G_phy_reg(nesdev, 0, nesadapter->phy_index[mac_index], phy_data); |
| nes_read_1G_phy_reg(nesdev, 0, nesadapter->phy_index[mac_index], &phy_data); |
| nes_debug(NES_DBG_PHY, "Phy data from register 0 = 0x%X.\n", phy_data); |
| |
| nes_read_1G_phy_reg(nesdev, 0x17, nesadapter->phy_index[mac_index], &phy_data); |
| nes_debug(NES_DBG_PHY, "Phy data from register 0x17 = 0x%X.\n", phy_data); |
| |
| nes_read_1G_phy_reg(nesdev, 0x1e, nesadapter->phy_index[mac_index], &phy_data); |
| nes_debug(NES_DBG_PHY, "Phy data from register 0x1e = 0x%X.\n", phy_data); |
| |
| /* Setting the interrupt mask */ |
| nes_read_1G_phy_reg(nesdev, 0x19, nesadapter->phy_index[mac_index], &phy_data); |
| nes_debug(NES_DBG_PHY, "Phy data from register 0x19 = 0x%X.\n", phy_data); |
| nes_write_1G_phy_reg(nesdev, 0x19, nesadapter->phy_index[mac_index], 0xffee); |
| |
| nes_read_1G_phy_reg(nesdev, 0x19, nesadapter->phy_index[mac_index], &phy_data); |
| nes_debug(NES_DBG_PHY, "Phy data from register 0x19 = 0x%X.\n", phy_data); |
| |
| /* turning on flow control */ |
| nes_read_1G_phy_reg(nesdev, 4, nesadapter->phy_index[mac_index], &phy_data); |
| nes_debug(NES_DBG_PHY, "Phy data from register 0x4 = 0x%X.\n", phy_data); |
| nes_write_1G_phy_reg(nesdev, 4, nesadapter->phy_index[mac_index], |
| (phy_data & ~(0x03E0)) | 0xc00); |
| /* nes_write_1G_phy_reg(nesdev, 4, nesadapter->phy_index[mac_index], |
| phy_data | 0xc00); */ |
| nes_read_1G_phy_reg(nesdev, 4, nesadapter->phy_index[mac_index], &phy_data); |
| nes_debug(NES_DBG_PHY, "Phy data from register 0x4 = 0x%X.\n", phy_data); |
| |
| nes_read_1G_phy_reg(nesdev, 9, nesadapter->phy_index[mac_index], &phy_data); |
| nes_debug(NES_DBG_PHY, "Phy data from register 0x9 = 0x%X.\n", phy_data); |
| /* Clear Half duplex */ |
| nes_write_1G_phy_reg(nesdev, 9, nesadapter->phy_index[mac_index], |
| phy_data & ~(0x0100)); |
| nes_read_1G_phy_reg(nesdev, 9, nesadapter->phy_index[mac_index], &phy_data); |
| nes_debug(NES_DBG_PHY, "Phy data from register 0x9 = 0x%X.\n", phy_data); |
| |
| nes_read_1G_phy_reg(nesdev, 0, nesadapter->phy_index[mac_index], &phy_data); |
| nes_write_1G_phy_reg(nesdev, 0, nesadapter->phy_index[mac_index], phy_data | 0x0300); |
| } else { |
| if ((nesadapter->phy_type[mac_index] == NES_PHY_TYPE_IRIS) || |
| (nesadapter->phy_type[mac_index] == NES_PHY_TYPE_ARGUS)) { |
| /* setup 10G MDIO operation */ |
| tx_config = nes_read_indexed(nesdev, NES_IDX_MAC_TX_CONFIG); |
| tx_config &= 0xFFFFFFE3; |
| tx_config |= 0x15; |
| nes_write_indexed(nesdev, NES_IDX_MAC_TX_CONFIG, tx_config); |
| } |
| if ((nesadapter->phy_type[mac_index] == NES_PHY_TYPE_ARGUS)) { |
| nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x3, 0xd7ee); |
| |
| temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL); |
| mdelay(10); |
| nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x3, 0xd7ee); |
| temp_phy_data2 = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL); |
| |
| /* |
| * if firmware is already running (like from a |
| * driver un-load/load, don't do anything. |
| */ |
| if (temp_phy_data == temp_phy_data2) { |
| /* configure QT2505 AMCC PHY */ |
| nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0x0000, 0x8000); |
| nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xc300, 0x0000); |
| nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xc302, 0x0044); |
| nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xc318, 0x0052); |
| nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xc319, 0x0008); |
| nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xc31a, 0x0098); |
| nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x3, 0x0026, 0x0E00); |
| nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x3, 0x0027, 0x0001); |
| nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x3, 0x0028, 0xA528); |
| |
| /* |
| * remove micro from reset; chip boots from ROM, |
| * uploads EEPROM f/w image, uC executes f/w |
| */ |
| nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xc300, 0x0002); |
| |
| /* |
| * wait for heart beat to start to |
| * know loading is done |
| */ |
| counter = 0; |
| do { |
| nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x3, 0xd7ee); |
| temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL); |
| if (counter++ > 1000) { |
| nes_debug(NES_DBG_PHY, "AMCC PHY- breaking from heartbeat check <this is bad!!!> \n"); |
| break; |
| } |
| mdelay(100); |
| nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_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 to start to know |
| * f/w is good to go |
| */ |
| counter = 0; |
| do { |
| nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x3, 0xd7fd); |
| temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL); |
| if (counter++ > 1000) { |
| nes_debug(NES_DBG_PHY, "AMCC PHY- breaking from status check <this is bad!!!> \n"); |
| break; |
| } |
| mdelay(1000); |
| /* |
| * nes_debug(NES_DBG_PHY, "AMCC PHY- phy_status not ready yet = 0x%02X\n", |
| * temp_phy_data); |
| */ |
| } while (((temp_phy_data & 0xff) != 0x50) && ((temp_phy_data & 0xff) != 0x70)); |
| |
| /* set LOS Control invert RXLOSB_I_PADINV */ |
| nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xd003, 0x0000); |
| /* set LOS Control to mask of RXLOSB_I */ |
| nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xc314, 0x0042); |
| /* set LED1 to input mode (LED1 and LED2 share same LED) */ |
| nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xd006, 0x0007); |
| /* set LED2 to RX link_status and activity */ |
| nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xd007, 0x000A); |
| /* set LED3 to RX link_status */ |
| nes_write_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 0x1, 0xd008, 0x0009); |
| |
| /* |
| * reset the res-calibration on t2 |
| * serdes; ensures it is stable after |
| * the amcc phy is stable |
| */ |
| |
| sds_common_control0 = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0); |
| sds_common_control0 |= 0x1; |
| nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0, sds_common_control0); |
| |
| /* release the res-calibration reset */ |
| sds_common_control0 &= 0xfffffffe; |
| nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0, sds_common_control0); |
| |
| i = 0; |
| while (((nes_read32(nesdev->regs + NES_SOFTWARE_RESET) & 0x00000040) != 0x00000040) |
| && (i++ < 5000)) { |
| /* mdelay(1); */ |
| } |
| |
| /* |
| * wait for link train done before moving on, |
| * or will get an interupt storm |
| */ |
| counter = 0; |
| do { |
| temp_phy_data = nes_read_indexed(nesdev, NES_IDX_PHY_PCS_CONTROL_STATUS0 + |
| (0x200 * (nesdev->mac_index & 1))); |
| if (counter++ > 1000) { |
| nes_debug(NES_DBG_PHY, "AMCC PHY- breaking from link train wait <this is bad, link didnt train!!!>\n"); |
| break; |
| } |
| mdelay(1); |
| } while (((temp_phy_data & 0x0f1f0000) != 0x0f0f0000)); |
| } |
| } |
| } |
| return 0; |
| } |
| |
| |
| /** |
| * 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.sq_lock); |
| 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; |
| unsigned long flags; |
| int ret; |
| |
| /* 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); |
| } |
| |
| /** |
| * 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; |
| } |
| 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; |
| |
| 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; |
| spin_unlock_irqrestore(&nesadapter->phy_lock, flags); |
| |
| /* 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))) { |
| spin_lock_irqsave(&nesadapter->phy_lock, flags); |
| nes_reset_link(nesdev, mac_index); |
| spin_unlock_irqrestore(&nesadapter->phy_lock, flags); |
| } |
| /* 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_IRIS: |
| nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 1); |
| temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL); |
| u32temp = 20; |
| do { |
| nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 1); |
| phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL); |
| if ((phy_data == temp_phy_data) || (!(--u32temp))) |
| break; |
| temp_phy_data = phy_data; |
| } while (1); |
| 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_ARGUS: |
| /* 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, 1); |
| temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL); |
| u32temp = 100; |
| do { |
| nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 1); |
| |
| phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL); |
| if ((phy_data == temp_phy_data) || (!(--u32temp))) |
| break; |
| temp_phy_data = phy_data; |
| } while (1); |
| nes_debug(NES_DBG_PHY, "%s: Phy data = 0x%04X, link was %s.\n", |
| __func__, phy_data, nesadapter->mac_link_down ? "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; |
| } |
| } |
| |
| if (phy_data & 0x0004) { |
| 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 { |
| 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); |
| |
| netif_rx_schedule(nesdev->netdev[nesvnic->netdev_index], &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->netdev->last_rx = jiffies; |
| /* 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); |
| } |
| |
| |
| /** |
| * nes_process_iwarp_aeqe |
| */ |
| static void nes_process_iwarp_aeqe(struct nes_device *nesdev, |
| struct nes_hw_aeqe *aeqe) |
| { |
| u64 context; |
| u64 aeqe_context = 0; |
| unsigned long flags; |
| struct nes_qp *nesqp; |
| int resource_allocated; |
| /* struct iw_cm_id *cm_id; */ |
| struct nes_adapter *nesadapter = nesdev->nesadapter; |
| struct ib_event ibevent; |
| /* struct iw_cm_event cm_event; */ |
| u32 aeq_info; |
| u32 next_iwarp_state = 0; |
| u16 async_event_id; |
| u8 tcp_state; |
| u8 iwarp_state; |
| |
| 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 { |
| aeqe_context = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_CTXT_LOW_IDX]); |
| aeqe_context += ((u64)le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_CTXT_HIGH_IDX])) << 32; |
| 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); |
| } |
| |
| 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: |
| nesqp = *((struct nes_qp **)&context); |
| 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); |
| } |
| if ((tcp_state != NES_AEQE_TCP_STATE_CLOSE_WAIT) || |
| (nesqp->ibqp_state != IB_QPS_RTS)) { |
| /* FIN Received but tcp state or IB state moved on, |
| should expect a close complete */ |
| return; |
| } |
| case NES_AEQE_AEID_LLP_CLOSE_COMPLETE: |
| case NES_AEQE_AEID_LLP_CONNECTION_RESET: |
| case NES_AEQE_AEID_TERMINATE_SENT: |
| case NES_AEQE_AEID_RDMAP_ROE_BAD_LLP_CLOSE: |
| case NES_AEQE_AEID_RESET_SENT: |
| nesqp = *((struct nes_qp **)&context); |
| if (async_event_id == 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; |
| |
| if ((tcp_state == NES_AEQE_TCP_STATE_CLOSED) || |
| (tcp_state == NES_AEQE_TCP_STATE_TIME_WAIT)) { |
| nesqp->hte_added = 0; |
| spin_unlock_irqrestore(&nesqp->lock, flags); |
| nes_debug(NES_DBG_AEQ, "issuing hw modifyqp for QP%u to remove hte\n", |
| nesqp->hwqp.qp_id); |
| nes_hw_modify_qp(nesdev, nesqp, |
| NES_CQP_QP_IWARP_STATE_ERROR | NES_CQP_QP_DEL_HTE, 0); |
| spin_lock_irqsave(&nesqp->lock, flags); |
| } |
| |
| if ((nesqp->ibqp_state == IB_QPS_RTS) && |
| ((tcp_state == NES_AEQE_TCP_STATE_CLOSE_WAIT) || |
| (async_event_id == NES_AEQE_AEID_LLP_CONNECTION_RESET))) { |
| switch (nesqp->hw_iwarp_state) { |
| case NES_AEQE_IWARP_STATE_RTS: |
| next_iwarp_state = NES_CQP_QP_IWARP_STATE_CLOSING; |
| nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_CLOSING; |
| break; |
| case NES_AEQE_IWARP_STATE_TERMINATE: |
| next_iwarp_state = NES_CQP_QP_IWARP_STATE_TERMINATE; |
| nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_TERMINATE; |
| if (async_event_id == NES_AEQE_AEID_RDMAP_ROE_BAD_LLP_CLOSE) { |
| next_iwarp_state |= 0x02000000; |
| nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_CLOSED; |
| } |
| break; |
| default: |
| next_iwarp_state = 0; |
| } |
| spin_unlock_irqrestore(&nesqp->lock, flags); |
| if (next_iwarp_state) { |
| nes_debug(NES_DBG_AEQ, "issuing hw modifyqp for QP%u. next state = 0x%08X," |
| " also added another reference\n", |
| nesqp->hwqp.qp_id, next_iwarp_state); |
| nes_hw_modify_qp(nesdev, nesqp, next_iwarp_state, 0); |
| } |
| nes_cm_disconn(nesqp); |
| } else { |
| if (async_event_id == NES_AEQE_AEID_LLP_FIN_RECEIVED) { |
| /* FIN Received but ib state not RTS, |
| close complete will be on its way */ |
| spin_unlock_irqrestore(&nesqp->lock, flags); |
| return; |
| } |
| spin_unlock_irqrestore(&nesqp->lock, flags); |
| if (async_event_id == NES_AEQE_AEID_RDMAP_ROE_BAD_LLP_CLOSE) { |
| next_iwarp_state = NES_CQP_QP_IWARP_STATE_TERMINATE | 0x02000000; |
| nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_CLOSED; |
| nes_debug(NES_DBG_AEQ, "issuing hw modifyqp for QP%u. next state = 0x%08X," |
| " also added another reference\n", |
| nesqp->hwqp.qp_id, next_iwarp_state); |
| nes_hw_modify_qp(nesdev, nesqp, next_iwarp_state, 0); |
| } |
| nes_cm_disconn(nesqp); |
| } |
| break; |
| case NES_AEQE_AEID_LLP_TERMINATE_RECEIVED: |
| nesqp = *((struct nes_qp **)&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; |
| spin_unlock_irqrestore(&nesqp->lock, flags); |
| nes_debug(NES_DBG_AEQ, "Processing an NES_AEQE_AEID_LLP_TERMINATE_RECEIVED" |
| " event on QP%u \n Q2 Data:\n", |
| nesqp->hwqp.qp_id); |
| if (nesqp->ibqp.event_handler) { |
| ibevent.device = nesqp->ibqp.device; |
| ibevent.element.qp = &nesqp->ibqp; |
| ibevent.event = IB_EVENT_QP_FATAL; |
| nesqp->ibqp.event_handler(&ibevent, nesqp->ibqp.qp_context); |
| } |
| if ((tcp_state == NES_AEQE_TCP_STATE_CLOSE_WAIT) || |
| ((nesqp->ibqp_state == IB_QPS_RTS)&& |
| (async_event_id == NES_AEQE_AEID_LLP_CONNECTION_RESET))) { |
| nes_cm_disconn(nesqp); |
| } else { |
| nesqp->in_disconnect = 0; |
| wake_up(&nesqp->kick_waitq); |
| } |
| break; |
| case NES_AEQE_AEID_LLP_TOO_MANY_RETRIES: |
| nesqp = *((struct nes_qp **)&context); |
| spin_lock_irqsave(&nesqp->lock, flags); |
| nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_ERROR; |
| nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_CLOSED; |
| nesqp->last_aeq = async_event_id; |
| if (nesqp->cm_id) { |
| nes_debug(NES_DBG_AEQ, "Processing an NES_AEQE_AEID_LLP_TOO_MANY_RETRIES" |
| " event on QP%u, remote IP = 0x%08X \n", |
| nesqp->hwqp.qp_id, |
| ntohl(nesqp->cm_id->remote_addr.sin_addr.s_addr)); |
| } else { |
| nes_debug(NES_DBG_AEQ, "Processing an NES_AEQE_AEID_LLP_TOO_MANY_RETRIES" |
| " event on QP%u \n", |
| nesqp->hwqp.qp_id); |
| } |
| spin_unlock_irqrestore(&nesqp->lock, flags); |
| next_iwarp_state = NES_CQP_QP_IWARP_STATE_ERROR | NES_CQP_QP_RESET; |
| nes_hw_modify_qp(nesdev, nesqp, next_iwarp_state, 0); |
| if (nesqp->ibqp.event_handler) { |
| ibevent.device = nesqp->ibqp.device; |
| ibevent.element.qp = &nesqp->ibqp; |
| ibevent.event = IB_EVENT_QP_FATAL; |
| nesqp->ibqp.event_handler(&ibevent, nesqp->ibqp.qp_context); |
| } |
| break; |
| case NES_AEQE_AEID_AMP_BAD_STAG_INDEX: |
| if (NES_AEQE_INBOUND_RDMA&aeq_info) { |
| nesqp = nesadapter->qp_table[le32_to_cpu( |
| aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX])-NES_FIRST_QPN]; |
| } else { |
| /* TODO: get the actual WQE and mask off wqe index */ |
| context &= ~((u64)511); |
| nesqp = *((struct nes_qp **)&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; |
| spin_unlock_irqrestore(&nesqp->lock, flags); |
| nes_debug(NES_DBG_AEQ, "Processing an NES_AEQE_AEID_AMP_BAD_STAG_INDEX event on QP%u\n", |
| nesqp->hwqp.qp_id); |
| if (nesqp->ibqp.event_handler) { |
| ibevent.device = nesqp->ibqp.device; |
| ibevent.element.qp = &nesqp->ibqp; |
| ibevent.event = IB_EVENT_QP_ACCESS_ERR; |
| nesqp->ibqp.event_handler(&ibevent, nesqp->ibqp.qp_context); |
| } |
| break; |
| case NES_AEQE_AEID_AMP_UNALLOCATED_STAG: |
| nesqp = *((struct nes_qp **)&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; |
| spin_unlock_irqrestore(&nesqp->lock, flags); |
| nes_debug(NES_DBG_AEQ, "Processing an NES_AEQE_AEID_AMP_UNALLOCATED_STAG event on QP%u\n", |
| nesqp->hwqp.qp_id); |
| if (nesqp->ibqp.event_handler) { |
| ibevent.device = nesqp->ibqp.device; |
| ibevent.element.qp = &nesqp->ibqp; |
| ibevent.event = IB_EVENT_QP_ACCESS_ERR; |
| nesqp->ibqp.event_handler(&ibevent, nesqp->ibqp.qp_context); |
| } |
| break; |
| case NES_AEQE_AEID_PRIV_OPERATION_DENIED: |
| nesqp = nesadapter->qp_table[le32_to_cpu(aeqe->aeqe_words |
| [NES_AEQE_COMP_QP_CQ_ID_IDX])-NES_FIRST_QPN]; |
| 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_debug(NES_DBG_AEQ, "Processing an NES_AEQE_AEID_PRIV_OPERATION_DENIED event on QP%u," |
| " nesqp = %p, AE reported %p\n", |
| nesqp->hwqp.qp_id, nesqp, *((struct nes_qp **)&context)); |
| if (nesqp->ibqp.event_handler) { |
| ibevent.device = nesqp->ibqp.device; |
| ibevent.element.qp = &nesqp->ibqp; |
| ibevent.event = IB_EVENT_QP_ACCESS_ERR; |
| nesqp->ibqp.event_handler(&ibevent, nesqp->ibqp.qp_context); |
| } |
| 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])); |
| } |
| break; |
| case NES_AEQE_AEID_DDP_UBE_DDP_MESSAGE_TOO_LONG_FOR_AVAILABLE_BUFFER: |
| nesqp = nesadapter->qp_table[le32_to_cpu( |
| aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX])-NES_FIRST_QPN]; |
| 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_debug(NES_DBG_AEQ, "Processing an NES_AEQE_AEID_DDP_UBE_DDP_MESSAGE_TOO_LONG" |
| "_FOR_AVAILABLE_BUFFER event on QP%u\n", |
| nesqp->hwqp.qp_id); |
| if (nesqp->ibqp.event_handler) { |
| ibevent.device = nesqp->ibqp.device; |
| ibevent.element.qp = &nesqp->ibqp; |
| ibevent.event = IB_EVENT_QP_ACCESS_ERR; |
| nesqp->ibqp.event_handler(&ibevent, nesqp->ibqp.qp_context); |
| } |
| /* tell cm to disconnect, cm will queue work to thread */ |
| nes_cm_disconn(nesqp); |
| break; |
| case NES_AEQE_AEID_DDP_UBE_INVALID_MSN_NO_BUFFER_AVAILABLE: |
| nesqp = *((struct nes_qp **)&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; |
| spin_unlock_irqrestore(&nesqp->lock, flags); |
| nes_debug(NES_DBG_AEQ, "Processing an NES_AEQE_AEID_DDP_UBE_INVALID_MSN" |
| "_NO_BUFFER_AVAILABLE event on QP%u\n", |
| nesqp->hwqp.qp_id); |
| if (nesqp->ibqp.event_handler) { |
| ibevent.device = nesqp->ibqp.device; |
| ibevent.element.qp = &nesqp->ibqp; |
| ibevent.event = IB_EVENT_QP_FATAL; |
| nesqp->ibqp.event_handler(&ibevent, nesqp->ibqp.qp_context); |
| } |
| /* tell cm to disconnect, cm will queue work to thread */ |
| nes_cm_disconn(nesqp); |
| break; |
| case NES_AEQE_AEID_LLP_RECEIVED_MPA_CRC_ERROR: |
| nesqp = *((struct nes_qp **)&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; |
| spin_unlock_irqrestore(&nesqp->lock, flags); |
| nes_debug(NES_DBG_AEQ, "Processing an NES_AEQE_AEID_LLP_RECEIVED_MPA_CRC_ERROR" |
| " event on QP%u \n Q2 Data:\n", |
| nesqp->hwqp.qp_id); |
| if (nesqp->ibqp.event_handler) { |
| ibevent.device = nesqp->ibqp.device; |
| ibevent.element.qp = &nesqp->ibqp; |
| ibevent.event = IB_EVENT_QP_FATAL; |
| nesqp->ibqp.event_handler(&ibevent, nesqp->ibqp.qp_context); |
| } |
| /* tell cm to disconnect, cm will queue work to thread */ |
| nes_cm_disconn(nesqp); |
| break; |
| /* TODO: additional AEs need to be here */ |
| case NES_AEQE_AEID_AMP_BOUNDS_VIOLATION: |
| nesqp = *((struct nes_qp **)&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; |
| spin_unlock_irqrestore(&nesqp->lock, flags); |
| if (nesqp->ibqp.event_handler) { |
| ibevent.device = nesqp->ibqp.device; |
| ibevent.element.qp = &nesqp->ibqp; |
| ibevent.event = IB_EVENT_QP_ACCESS_ERR; |
| nesqp->ibqp.event_handler(&ibevent, |
| nesqp->ibqp.qp_context); |
| } |
| nes_cm_disconn(nesqp); |
| 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; |
| 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); |
| |
| 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); |
| } |
| } |