423 lines
12 KiB
C
423 lines
12 KiB
C
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/*
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* Linux network driver for Brocade Converged Network Adapter.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License (GPL) Version 2 as
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* published by the Free Software Foundation
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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/*
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* Copyright (c) 2005-2011 Brocade Communications Systems, Inc.
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* All rights reserved
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* www.brocade.com
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*/
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/**
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* File for interrupt macros and functions
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*/
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#ifndef __BNA_HW_DEFS_H__
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#define __BNA_HW_DEFS_H__
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#include "bfi_reg.h"
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/**
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*
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* SW imposed limits
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*
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*/
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#define BFI_ENET_DEF_TXQ 1
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#define BFI_ENET_DEF_RXP 1
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#define BFI_ENET_DEF_UCAM 1
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#define BFI_ENET_DEF_RITSZ 1
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#define BFI_ENET_MAX_MCAM 256
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#define BFI_INVALID_RID -1
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#define BFI_IBIDX_SIZE 4
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#define BFI_VLAN_WORD_SHIFT 5 /* 32 bits */
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#define BFI_VLAN_WORD_MASK 0x1F
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#define BFI_VLAN_BLOCK_SHIFT 9 /* 512 bits */
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#define BFI_VLAN_BMASK_ALL 0xFF
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#define BFI_COALESCING_TIMER_UNIT 5 /* 5us */
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#define BFI_MAX_COALESCING_TIMEO 0xFF /* in 5us units */
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#define BFI_MAX_INTERPKT_COUNT 0xFF
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#define BFI_MAX_INTERPKT_TIMEO 0xF /* in 0.5us units */
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#define BFI_TX_COALESCING_TIMEO 20 /* 20 * 5 = 100us */
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#define BFI_TX_INTERPKT_COUNT 32
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#define BFI_RX_COALESCING_TIMEO 12 /* 12 * 5 = 60us */
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#define BFI_RX_INTERPKT_COUNT 6 /* Pkt Cnt = 6 */
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#define BFI_RX_INTERPKT_TIMEO 3 /* 3 * 0.5 = 1.5us */
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#define BFI_TXQ_WI_SIZE 64 /* bytes */
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#define BFI_RXQ_WI_SIZE 8 /* bytes */
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#define BFI_CQ_WI_SIZE 16 /* bytes */
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#define BFI_TX_MAX_WRR_QUOTA 0xFFF
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#define BFI_TX_MAX_VECTORS_PER_WI 4
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#define BFI_TX_MAX_VECTORS_PER_PKT 0xFF
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#define BFI_TX_MAX_DATA_PER_VECTOR 0xFFFF
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#define BFI_TX_MAX_DATA_PER_PKT 0xFFFFFF
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/* Small Q buffer size */
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#define BFI_SMALL_RXBUF_SIZE 128
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#define BFI_TX_MAX_PRIO 8
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#define BFI_TX_PRIO_MAP_ALL 0xFF
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/*
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*
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* Register definitions and macros
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*
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*/
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#define BNA_PCI_REG_CT_ADDRSZ (0x40000)
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#define ct_reg_addr_init(_bna, _pcidev) \
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{ \
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struct bna_reg_offset reg_offset[] = \
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{{HOSTFN0_INT_STATUS, HOSTFN0_INT_MSK}, \
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{HOSTFN1_INT_STATUS, HOSTFN1_INT_MSK}, \
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{HOSTFN2_INT_STATUS, HOSTFN2_INT_MSK}, \
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{HOSTFN3_INT_STATUS, HOSTFN3_INT_MSK} }; \
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\
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(_bna)->regs.fn_int_status = (_pcidev)->pci_bar_kva + \
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reg_offset[(_pcidev)->pci_func].fn_int_status;\
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(_bna)->regs.fn_int_mask = (_pcidev)->pci_bar_kva + \
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reg_offset[(_pcidev)->pci_func].fn_int_mask;\
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}
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#define ct_bit_defn_init(_bna, _pcidev) \
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{ \
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(_bna)->bits.mbox_status_bits = (__HFN_INT_MBOX_LPU0 | \
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__HFN_INT_MBOX_LPU1); \
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(_bna)->bits.mbox_mask_bits = (__HFN_INT_MBOX_LPU0 | \
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__HFN_INT_MBOX_LPU1); \
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(_bna)->bits.error_status_bits = (__HFN_INT_ERR_MASK); \
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(_bna)->bits.error_mask_bits = (__HFN_INT_ERR_MASK); \
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(_bna)->bits.halt_status_bits = __HFN_INT_LL_HALT; \
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(_bna)->bits.halt_mask_bits = __HFN_INT_LL_HALT; \
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}
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#define ct2_reg_addr_init(_bna, _pcidev) \
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{ \
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(_bna)->regs.fn_int_status = (_pcidev)->pci_bar_kva + \
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CT2_HOSTFN_INT_STATUS; \
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(_bna)->regs.fn_int_mask = (_pcidev)->pci_bar_kva + \
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CT2_HOSTFN_INTR_MASK; \
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}
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#define ct2_bit_defn_init(_bna, _pcidev) \
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{ \
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(_bna)->bits.mbox_status_bits = (__HFN_INT_MBOX_LPU0_CT2 | \
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__HFN_INT_MBOX_LPU1_CT2); \
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(_bna)->bits.mbox_mask_bits = (__HFN_INT_MBOX_LPU0_CT2 | \
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__HFN_INT_MBOX_LPU1_CT2); \
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(_bna)->bits.error_status_bits = (__HFN_INT_ERR_MASK_CT2); \
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(_bna)->bits.error_mask_bits = (__HFN_INT_ERR_MASK_CT2); \
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(_bna)->bits.halt_status_bits = __HFN_INT_CPQ_HALT_CT2; \
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(_bna)->bits.halt_mask_bits = __HFN_INT_CPQ_HALT_CT2; \
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}
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#define bna_reg_addr_init(_bna, _pcidev) \
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{ \
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switch ((_pcidev)->device_id) { \
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case PCI_DEVICE_ID_BROCADE_CT: \
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ct_reg_addr_init((_bna), (_pcidev)); \
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ct_bit_defn_init((_bna), (_pcidev)); \
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break; \
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case BFA_PCI_DEVICE_ID_CT2: \
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ct2_reg_addr_init((_bna), (_pcidev)); \
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ct2_bit_defn_init((_bna), (_pcidev)); \
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break; \
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} \
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}
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#define bna_port_id_get(_bna) ((_bna)->ioceth.ioc.port_id)
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/**
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*
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* Interrupt related bits, flags and macros
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*
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*/
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#define IB_STATUS_BITS 0x0000ffff
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#define BNA_IS_MBOX_INTR(_bna, _intr_status) \
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((_intr_status) & (_bna)->bits.mbox_status_bits)
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#define BNA_IS_HALT_INTR(_bna, _intr_status) \
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((_intr_status) & (_bna)->bits.halt_status_bits)
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#define BNA_IS_ERR_INTR(_bna, _intr_status) \
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((_intr_status) & (_bna)->bits.error_status_bits)
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#define BNA_IS_MBOX_ERR_INTR(_bna, _intr_status) \
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(BNA_IS_MBOX_INTR(_bna, _intr_status) | \
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BNA_IS_ERR_INTR(_bna, _intr_status))
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#define BNA_IS_INTX_DATA_INTR(_intr_status) \
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((_intr_status) & IB_STATUS_BITS)
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#define bna_halt_clear(_bna) \
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do { \
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u32 init_halt; \
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init_halt = readl((_bna)->ioceth.ioc.ioc_regs.ll_halt); \
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init_halt &= ~__FW_INIT_HALT_P; \
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writel(init_halt, (_bna)->ioceth.ioc.ioc_regs.ll_halt); \
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init_halt = readl((_bna)->ioceth.ioc.ioc_regs.ll_halt); \
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} while (0)
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#define bna_intx_disable(_bna, _cur_mask) \
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{ \
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(_cur_mask) = readl((_bna)->regs.fn_int_mask); \
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writel(0xffffffff, (_bna)->regs.fn_int_mask); \
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}
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#define bna_intx_enable(bna, new_mask) \
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writel((new_mask), (bna)->regs.fn_int_mask)
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#define bna_mbox_intr_disable(bna) \
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do { \
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u32 mask; \
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mask = readl((bna)->regs.fn_int_mask); \
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writel((mask | (bna)->bits.mbox_mask_bits | \
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(bna)->bits.error_mask_bits), (bna)->regs.fn_int_mask); \
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mask = readl((bna)->regs.fn_int_mask); \
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} while (0)
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#define bna_mbox_intr_enable(bna) \
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do { \
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u32 mask; \
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mask = readl((bna)->regs.fn_int_mask); \
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writel((mask & ~((bna)->bits.mbox_mask_bits | \
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(bna)->bits.error_mask_bits)), (bna)->regs.fn_int_mask);\
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mask = readl((bna)->regs.fn_int_mask); \
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} while (0)
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#define bna_intr_status_get(_bna, _status) \
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{ \
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(_status) = readl((_bna)->regs.fn_int_status); \
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if (_status) { \
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writel(((_status) & ~(_bna)->bits.mbox_status_bits), \
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(_bna)->regs.fn_int_status); \
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} \
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}
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/*
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* MAX ACK EVENTS : No. of acks that can be accumulated in driver,
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* before acking to h/w. The no. of bits is 16 in the doorbell register,
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* however we keep this limited to 15 bits.
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* This is because around the edge of 64K boundary (16 bits), one
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* single poll can make the accumulated ACK counter cross the 64K boundary,
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* causing problems, when we try to ack with a value greater than 64K.
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* 15 bits (32K) should be large enough to accumulate, anyways, and the max.
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* acked events to h/w can be (32K + max poll weight) (currently 64).
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*/
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#define BNA_IB_MAX_ACK_EVENTS (1 << 15)
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/* These macros build the data portion of the TxQ/RxQ doorbell */
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#define BNA_DOORBELL_Q_PRD_IDX(_pi) (0x80000000 | (_pi))
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#define BNA_DOORBELL_Q_STOP (0x40000000)
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/* These macros build the data portion of the IB doorbell */
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#define BNA_DOORBELL_IB_INT_ACK(_timeout, _events) \
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(0x80000000 | ((_timeout) << 16) | (_events))
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#define BNA_DOORBELL_IB_INT_DISABLE (0x40000000)
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/* Set the coalescing timer for the given ib */
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#define bna_ib_coalescing_timer_set(_i_dbell, _cls_timer) \
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((_i_dbell)->doorbell_ack = BNA_DOORBELL_IB_INT_ACK((_cls_timer), 0));
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/* Acks 'events' # of events for a given ib while disabling interrupts */
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#define bna_ib_ack_disable_irq(_i_dbell, _events) \
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(writel(BNA_DOORBELL_IB_INT_ACK(0, (_events)), \
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(_i_dbell)->doorbell_addr));
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/* Acks 'events' # of events for a given ib */
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#define bna_ib_ack(_i_dbell, _events) \
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(writel(((_i_dbell)->doorbell_ack | (_events)), \
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(_i_dbell)->doorbell_addr));
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#define bna_ib_start(_bna, _ib, _is_regular) \
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{ \
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u32 intx_mask; \
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struct bna_ib *ib = _ib; \
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if ((ib->intr_type == BNA_INTR_T_INTX)) { \
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bna_intx_disable((_bna), intx_mask); \
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intx_mask &= ~(ib->intr_vector); \
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bna_intx_enable((_bna), intx_mask); \
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} \
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bna_ib_coalescing_timer_set(&ib->door_bell, \
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ib->coalescing_timeo); \
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if (_is_regular) \
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bna_ib_ack(&ib->door_bell, 0); \
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}
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#define bna_ib_stop(_bna, _ib) \
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{ \
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u32 intx_mask; \
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struct bna_ib *ib = _ib; \
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writel(BNA_DOORBELL_IB_INT_DISABLE, \
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ib->door_bell.doorbell_addr); \
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if (ib->intr_type == BNA_INTR_T_INTX) { \
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bna_intx_disable((_bna), intx_mask); \
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intx_mask |= ib->intr_vector; \
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bna_intx_enable((_bna), intx_mask); \
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} \
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}
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#define bna_txq_prod_indx_doorbell(_tcb) \
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(writel(BNA_DOORBELL_Q_PRD_IDX((_tcb)->producer_index), \
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(_tcb)->q_dbell));
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#define bna_rxq_prod_indx_doorbell(_rcb) \
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(writel(BNA_DOORBELL_Q_PRD_IDX((_rcb)->producer_index), \
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(_rcb)->q_dbell));
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/**
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*
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* TxQ, RxQ, CQ related bits, offsets, macros
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*
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*/
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/* TxQ Entry Opcodes */
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#define BNA_TXQ_WI_SEND (0x402) /* Single Frame Transmission */
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#define BNA_TXQ_WI_SEND_LSO (0x403) /* Multi-Frame Transmission */
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#define BNA_TXQ_WI_EXTENSION (0x104) /* Extension WI */
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/* TxQ Entry Control Flags */
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#define BNA_TXQ_WI_CF_FCOE_CRC (1 << 8)
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#define BNA_TXQ_WI_CF_IPID_MODE (1 << 5)
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#define BNA_TXQ_WI_CF_INS_PRIO (1 << 4)
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#define BNA_TXQ_WI_CF_INS_VLAN (1 << 3)
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#define BNA_TXQ_WI_CF_UDP_CKSUM (1 << 2)
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#define BNA_TXQ_WI_CF_TCP_CKSUM (1 << 1)
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#define BNA_TXQ_WI_CF_IP_CKSUM (1 << 0)
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#define BNA_TXQ_WI_L4_HDR_N_OFFSET(_hdr_size, _offset) \
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(((_hdr_size) << 10) | ((_offset) & 0x3FF))
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/*
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* Completion Q defines
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*/
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/* CQ Entry Flags */
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#define BNA_CQ_EF_MAC_ERROR (1 << 0)
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#define BNA_CQ_EF_FCS_ERROR (1 << 1)
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#define BNA_CQ_EF_TOO_LONG (1 << 2)
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#define BNA_CQ_EF_FC_CRC_OK (1 << 3)
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#define BNA_CQ_EF_RSVD1 (1 << 4)
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#define BNA_CQ_EF_L4_CKSUM_OK (1 << 5)
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#define BNA_CQ_EF_L3_CKSUM_OK (1 << 6)
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#define BNA_CQ_EF_HDS_HEADER (1 << 7)
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||
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||
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#define BNA_CQ_EF_UDP (1 << 8)
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#define BNA_CQ_EF_TCP (1 << 9)
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||
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#define BNA_CQ_EF_IP_OPTIONS (1 << 10)
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#define BNA_CQ_EF_IPV6 (1 << 11)
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|
||
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#define BNA_CQ_EF_IPV4 (1 << 12)
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#define BNA_CQ_EF_VLAN (1 << 13)
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#define BNA_CQ_EF_RSS (1 << 14)
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#define BNA_CQ_EF_RSVD2 (1 << 15)
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||
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|
||
|
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#define BNA_CQ_EF_MCAST_MATCH (1 << 16)
|
||
|
|
#define BNA_CQ_EF_MCAST (1 << 17)
|
||
|
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#define BNA_CQ_EF_BCAST (1 << 18)
|
||
|
|
#define BNA_CQ_EF_REMOTE (1 << 19)
|
||
|
|
|
||
|
|
#define BNA_CQ_EF_LOCAL (1 << 20)
|
||
|
|
|
||
|
|
/**
|
||
|
|
*
|
||
|
|
* Data structures
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
struct bna_reg_offset {
|
||
|
|
u32 fn_int_status;
|
||
|
|
u32 fn_int_mask;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct bna_bit_defn {
|
||
|
|
u32 mbox_status_bits;
|
||
|
|
u32 mbox_mask_bits;
|
||
|
|
u32 error_status_bits;
|
||
|
|
u32 error_mask_bits;
|
||
|
|
u32 halt_status_bits;
|
||
|
|
u32 halt_mask_bits;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct bna_reg {
|
||
|
|
void __iomem *fn_int_status;
|
||
|
|
void __iomem *fn_int_mask;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* TxQ Vector (a.k.a. Tx-Buffer Descriptor) */
|
||
|
|
struct bna_dma_addr {
|
||
|
|
u32 msb;
|
||
|
|
u32 lsb;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct bna_txq_wi_vector {
|
||
|
|
u16 reserved;
|
||
|
|
u16 length; /* Only 14 LSB are valid */
|
||
|
|
struct bna_dma_addr host_addr; /* Tx-Buf DMA addr */
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* TxQ Entry Structure
|
||
|
|
*
|
||
|
|
* BEWARE: Load values into this structure with correct endianess.
|
||
|
|
*/
|
||
|
|
struct bna_txq_entry {
|
||
|
|
union {
|
||
|
|
struct {
|
||
|
|
u8 reserved;
|
||
|
|
u8 num_vectors; /* number of vectors present */
|
||
|
|
u16 opcode; /* Either */
|
||
|
|
/* BNA_TXQ_WI_SEND or */
|
||
|
|
/* BNA_TXQ_WI_SEND_LSO */
|
||
|
|
u16 flags; /* OR of all the flags */
|
||
|
|
u16 l4_hdr_size_n_offset;
|
||
|
|
u16 vlan_tag;
|
||
|
|
u16 lso_mss; /* Only 14 LSB are valid */
|
||
|
|
u32 frame_length; /* Only 24 LSB are valid */
|
||
|
|
} wi;
|
||
|
|
|
||
|
|
struct {
|
||
|
|
u16 reserved;
|
||
|
|
u16 opcode; /* Must be */
|
||
|
|
/* BNA_TXQ_WI_EXTENSION */
|
||
|
|
u32 reserved2[3]; /* Place holder for */
|
||
|
|
/* removed vector (12 bytes) */
|
||
|
|
} wi_ext;
|
||
|
|
} hdr;
|
||
|
|
struct bna_txq_wi_vector vector[4];
|
||
|
|
};
|
||
|
|
|
||
|
|
/* RxQ Entry Structure */
|
||
|
|
struct bna_rxq_entry { /* Rx-Buffer */
|
||
|
|
struct bna_dma_addr host_addr; /* Rx-Buffer DMA address */
|
||
|
|
};
|
||
|
|
|
||
|
|
/* CQ Entry Structure */
|
||
|
|
struct bna_cq_entry {
|
||
|
|
u32 flags;
|
||
|
|
u16 vlan_tag;
|
||
|
|
u16 length;
|
||
|
|
u32 rss_hash;
|
||
|
|
u8 valid;
|
||
|
|
u8 reserved1;
|
||
|
|
u8 reserved2;
|
||
|
|
u8 rxq_id;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif /* __BNA_HW_DEFS_H__ */
|