937 lines
26 KiB
C
937 lines
26 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Linux network driver for QLogic BR-series Converged Network Adapter.
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*/
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/*
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* Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
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* Copyright (c) 2014-2015 QLogic Corporation
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* All rights reserved
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* www.qlogic.com
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*/
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#include "bfa_ioc.h"
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#include "cna.h"
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#include "bfi.h"
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#include "bfi_reg.h"
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#include "bfa_defs.h"
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#define bfa_ioc_ct_sync_pos(__ioc) BIT(bfa_ioc_pcifn(__ioc))
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#define BFA_IOC_SYNC_REQD_SH 16
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#define bfa_ioc_ct_get_sync_ackd(__val) (__val & 0x0000ffff)
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#define bfa_ioc_ct_clear_sync_ackd(__val) (__val & 0xffff0000)
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#define bfa_ioc_ct_get_sync_reqd(__val) (__val >> BFA_IOC_SYNC_REQD_SH)
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#define bfa_ioc_ct_sync_reqd_pos(__ioc) \
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(bfa_ioc_ct_sync_pos(__ioc) << BFA_IOC_SYNC_REQD_SH)
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/*
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* forward declarations
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*/
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static bool bfa_ioc_ct_firmware_lock(struct bfa_ioc *ioc);
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static void bfa_ioc_ct_firmware_unlock(struct bfa_ioc *ioc);
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static void bfa_ioc_ct_reg_init(struct bfa_ioc *ioc);
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static void bfa_ioc_ct2_reg_init(struct bfa_ioc *ioc);
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static void bfa_ioc_ct_map_port(struct bfa_ioc *ioc);
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static void bfa_ioc_ct2_map_port(struct bfa_ioc *ioc);
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static void bfa_ioc_ct_isr_mode_set(struct bfa_ioc *ioc, bool msix);
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static void bfa_ioc_ct_notify_fail(struct bfa_ioc *ioc);
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static void bfa_ioc_ct_ownership_reset(struct bfa_ioc *ioc);
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static bool bfa_ioc_ct_sync_start(struct bfa_ioc *ioc);
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static void bfa_ioc_ct_sync_join(struct bfa_ioc *ioc);
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static void bfa_ioc_ct_sync_leave(struct bfa_ioc *ioc);
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static void bfa_ioc_ct_sync_ack(struct bfa_ioc *ioc);
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static bool bfa_ioc_ct_sync_complete(struct bfa_ioc *ioc);
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static void bfa_ioc_ct_set_cur_ioc_fwstate(
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struct bfa_ioc *ioc, enum bfi_ioc_state fwstate);
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static enum bfi_ioc_state bfa_ioc_ct_get_cur_ioc_fwstate(struct bfa_ioc *ioc);
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static void bfa_ioc_ct_set_alt_ioc_fwstate(
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struct bfa_ioc *ioc, enum bfi_ioc_state fwstate);
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static enum bfi_ioc_state bfa_ioc_ct_get_alt_ioc_fwstate(struct bfa_ioc *ioc);
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static enum bfa_status bfa_ioc_ct_pll_init(void __iomem *rb,
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enum bfi_asic_mode asic_mode);
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static enum bfa_status bfa_ioc_ct2_pll_init(void __iomem *rb,
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enum bfi_asic_mode asic_mode);
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static bool bfa_ioc_ct2_lpu_read_stat(struct bfa_ioc *ioc);
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static const struct bfa_ioc_hwif nw_hwif_ct = {
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.ioc_pll_init = bfa_ioc_ct_pll_init,
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.ioc_firmware_lock = bfa_ioc_ct_firmware_lock,
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.ioc_firmware_unlock = bfa_ioc_ct_firmware_unlock,
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.ioc_reg_init = bfa_ioc_ct_reg_init,
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.ioc_map_port = bfa_ioc_ct_map_port,
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.ioc_isr_mode_set = bfa_ioc_ct_isr_mode_set,
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.ioc_notify_fail = bfa_ioc_ct_notify_fail,
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.ioc_ownership_reset = bfa_ioc_ct_ownership_reset,
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.ioc_sync_start = bfa_ioc_ct_sync_start,
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.ioc_sync_join = bfa_ioc_ct_sync_join,
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.ioc_sync_leave = bfa_ioc_ct_sync_leave,
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.ioc_sync_ack = bfa_ioc_ct_sync_ack,
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.ioc_sync_complete = bfa_ioc_ct_sync_complete,
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.ioc_set_fwstate = bfa_ioc_ct_set_cur_ioc_fwstate,
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.ioc_get_fwstate = bfa_ioc_ct_get_cur_ioc_fwstate,
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.ioc_set_alt_fwstate = bfa_ioc_ct_set_alt_ioc_fwstate,
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.ioc_get_alt_fwstate = bfa_ioc_ct_get_alt_ioc_fwstate,
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};
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static const struct bfa_ioc_hwif nw_hwif_ct2 = {
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.ioc_pll_init = bfa_ioc_ct2_pll_init,
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.ioc_firmware_lock = bfa_ioc_ct_firmware_lock,
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.ioc_firmware_unlock = bfa_ioc_ct_firmware_unlock,
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.ioc_reg_init = bfa_ioc_ct2_reg_init,
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.ioc_map_port = bfa_ioc_ct2_map_port,
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.ioc_lpu_read_stat = bfa_ioc_ct2_lpu_read_stat,
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.ioc_isr_mode_set = NULL,
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.ioc_notify_fail = bfa_ioc_ct_notify_fail,
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.ioc_ownership_reset = bfa_ioc_ct_ownership_reset,
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.ioc_sync_start = bfa_ioc_ct_sync_start,
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.ioc_sync_join = bfa_ioc_ct_sync_join,
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.ioc_sync_leave = bfa_ioc_ct_sync_leave,
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.ioc_sync_ack = bfa_ioc_ct_sync_ack,
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.ioc_sync_complete = bfa_ioc_ct_sync_complete,
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.ioc_set_fwstate = bfa_ioc_ct_set_cur_ioc_fwstate,
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.ioc_get_fwstate = bfa_ioc_ct_get_cur_ioc_fwstate,
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.ioc_set_alt_fwstate = bfa_ioc_ct_set_alt_ioc_fwstate,
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.ioc_get_alt_fwstate = bfa_ioc_ct_get_alt_ioc_fwstate,
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};
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/* Called from bfa_ioc_attach() to map asic specific calls. */
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void
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bfa_nw_ioc_set_ct_hwif(struct bfa_ioc *ioc)
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{
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ioc->ioc_hwif = &nw_hwif_ct;
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}
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void
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bfa_nw_ioc_set_ct2_hwif(struct bfa_ioc *ioc)
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{
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ioc->ioc_hwif = &nw_hwif_ct2;
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}
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/* Return true if firmware of current driver matches the running firmware. */
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static bool
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bfa_ioc_ct_firmware_lock(struct bfa_ioc *ioc)
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{
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enum bfi_ioc_state ioc_fwstate;
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u32 usecnt;
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struct bfi_ioc_image_hdr fwhdr;
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/**
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* If bios boot (flash based) -- do not increment usage count
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*/
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if (bfa_cb_image_get_size(bfa_ioc_asic_gen(ioc)) <
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BFA_IOC_FWIMG_MINSZ)
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return true;
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bfa_nw_ioc_sem_get(ioc->ioc_regs.ioc_usage_sem_reg);
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usecnt = readl(ioc->ioc_regs.ioc_usage_reg);
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/**
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* If usage count is 0, always return TRUE.
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*/
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if (usecnt == 0) {
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writel(1, ioc->ioc_regs.ioc_usage_reg);
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bfa_nw_ioc_sem_release(ioc->ioc_regs.ioc_usage_sem_reg);
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writel(0, ioc->ioc_regs.ioc_fail_sync);
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return true;
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}
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ioc_fwstate = readl(ioc->ioc_regs.ioc_fwstate);
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/**
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* Use count cannot be non-zero and chip in uninitialized state.
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*/
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BUG_ON(!(ioc_fwstate != BFI_IOC_UNINIT));
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/**
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* Check if another driver with a different firmware is active
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*/
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bfa_nw_ioc_fwver_get(ioc, &fwhdr);
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if (!bfa_nw_ioc_fwver_cmp(ioc, &fwhdr)) {
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bfa_nw_ioc_sem_release(ioc->ioc_regs.ioc_usage_sem_reg);
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return false;
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}
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/**
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* Same firmware version. Increment the reference count.
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*/
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usecnt++;
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writel(usecnt, ioc->ioc_regs.ioc_usage_reg);
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bfa_nw_ioc_sem_release(ioc->ioc_regs.ioc_usage_sem_reg);
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return true;
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}
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static void
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bfa_ioc_ct_firmware_unlock(struct bfa_ioc *ioc)
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{
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u32 usecnt;
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/**
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* If bios boot (flash based) -- do not decrement usage count
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*/
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if (bfa_cb_image_get_size(bfa_ioc_asic_gen(ioc)) <
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BFA_IOC_FWIMG_MINSZ)
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return;
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/**
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* decrement usage count
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*/
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bfa_nw_ioc_sem_get(ioc->ioc_regs.ioc_usage_sem_reg);
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usecnt = readl(ioc->ioc_regs.ioc_usage_reg);
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BUG_ON(!(usecnt > 0));
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usecnt--;
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writel(usecnt, ioc->ioc_regs.ioc_usage_reg);
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bfa_nw_ioc_sem_release(ioc->ioc_regs.ioc_usage_sem_reg);
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}
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/* Notify other functions on HB failure. */
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static void
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bfa_ioc_ct_notify_fail(struct bfa_ioc *ioc)
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{
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writel(__FW_INIT_HALT_P, ioc->ioc_regs.ll_halt);
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writel(__FW_INIT_HALT_P, ioc->ioc_regs.alt_ll_halt);
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/* Wait for halt to take effect */
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readl(ioc->ioc_regs.ll_halt);
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readl(ioc->ioc_regs.alt_ll_halt);
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}
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/* Host to LPU mailbox message addresses */
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static const struct {
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u32 hfn_mbox;
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u32 lpu_mbox;
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u32 hfn_pgn;
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} ct_fnreg[] = {
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{ HOSTFN0_LPU_MBOX0_0, LPU_HOSTFN0_MBOX0_0, HOST_PAGE_NUM_FN0 },
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{ HOSTFN1_LPU_MBOX0_8, LPU_HOSTFN1_MBOX0_8, HOST_PAGE_NUM_FN1 },
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{ HOSTFN2_LPU_MBOX0_0, LPU_HOSTFN2_MBOX0_0, HOST_PAGE_NUM_FN2 },
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{ HOSTFN3_LPU_MBOX0_8, LPU_HOSTFN3_MBOX0_8, HOST_PAGE_NUM_FN3 }
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};
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/* Host <-> LPU mailbox command/status registers - port 0 */
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static const struct {
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u32 hfn;
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u32 lpu;
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} ct_p0reg[] = {
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{ HOSTFN0_LPU0_CMD_STAT, LPU0_HOSTFN0_CMD_STAT },
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{ HOSTFN1_LPU0_CMD_STAT, LPU0_HOSTFN1_CMD_STAT },
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{ HOSTFN2_LPU0_CMD_STAT, LPU0_HOSTFN2_CMD_STAT },
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{ HOSTFN3_LPU0_CMD_STAT, LPU0_HOSTFN3_CMD_STAT }
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};
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/* Host <-> LPU mailbox command/status registers - port 1 */
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static const struct {
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u32 hfn;
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u32 lpu;
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} ct_p1reg[] = {
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{ HOSTFN0_LPU1_CMD_STAT, LPU1_HOSTFN0_CMD_STAT },
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{ HOSTFN1_LPU1_CMD_STAT, LPU1_HOSTFN1_CMD_STAT },
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{ HOSTFN2_LPU1_CMD_STAT, LPU1_HOSTFN2_CMD_STAT },
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{ HOSTFN3_LPU1_CMD_STAT, LPU1_HOSTFN3_CMD_STAT }
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};
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static const struct {
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u32 hfn_mbox;
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u32 lpu_mbox;
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u32 hfn_pgn;
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u32 hfn;
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u32 lpu;
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u32 lpu_read;
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} ct2_reg[] = {
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{ CT2_HOSTFN_LPU0_MBOX0, CT2_LPU0_HOSTFN_MBOX0, CT2_HOSTFN_PAGE_NUM,
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CT2_HOSTFN_LPU0_CMD_STAT, CT2_LPU0_HOSTFN_CMD_STAT,
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CT2_HOSTFN_LPU0_READ_STAT},
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{ CT2_HOSTFN_LPU1_MBOX0, CT2_LPU1_HOSTFN_MBOX0, CT2_HOSTFN_PAGE_NUM,
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CT2_HOSTFN_LPU1_CMD_STAT, CT2_LPU1_HOSTFN_CMD_STAT,
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CT2_HOSTFN_LPU1_READ_STAT},
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};
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static void
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bfa_ioc_ct_reg_init(struct bfa_ioc *ioc)
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{
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void __iomem *rb;
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int pcifn = bfa_ioc_pcifn(ioc);
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rb = bfa_ioc_bar0(ioc);
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ioc->ioc_regs.hfn_mbox = rb + ct_fnreg[pcifn].hfn_mbox;
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ioc->ioc_regs.lpu_mbox = rb + ct_fnreg[pcifn].lpu_mbox;
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ioc->ioc_regs.host_page_num_fn = rb + ct_fnreg[pcifn].hfn_pgn;
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if (ioc->port_id == 0) {
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ioc->ioc_regs.heartbeat = rb + BFA_IOC0_HBEAT_REG;
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ioc->ioc_regs.ioc_fwstate = rb + BFA_IOC0_STATE_REG;
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ioc->ioc_regs.alt_ioc_fwstate = rb + BFA_IOC1_STATE_REG;
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ioc->ioc_regs.hfn_mbox_cmd = rb + ct_p0reg[pcifn].hfn;
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ioc->ioc_regs.lpu_mbox_cmd = rb + ct_p0reg[pcifn].lpu;
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ioc->ioc_regs.ll_halt = rb + FW_INIT_HALT_P0;
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ioc->ioc_regs.alt_ll_halt = rb + FW_INIT_HALT_P1;
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} else {
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ioc->ioc_regs.heartbeat = rb + BFA_IOC1_HBEAT_REG;
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ioc->ioc_regs.ioc_fwstate = rb + BFA_IOC1_STATE_REG;
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ioc->ioc_regs.alt_ioc_fwstate = rb + BFA_IOC0_STATE_REG;
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ioc->ioc_regs.hfn_mbox_cmd = rb + ct_p1reg[pcifn].hfn;
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ioc->ioc_regs.lpu_mbox_cmd = rb + ct_p1reg[pcifn].lpu;
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ioc->ioc_regs.ll_halt = rb + FW_INIT_HALT_P1;
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ioc->ioc_regs.alt_ll_halt = rb + FW_INIT_HALT_P0;
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}
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/*
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* PSS control registers
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*/
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ioc->ioc_regs.pss_ctl_reg = rb + PSS_CTL_REG;
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ioc->ioc_regs.pss_err_status_reg = rb + PSS_ERR_STATUS_REG;
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ioc->ioc_regs.app_pll_fast_ctl_reg = rb + APP_PLL_LCLK_CTL_REG;
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ioc->ioc_regs.app_pll_slow_ctl_reg = rb + APP_PLL_SCLK_CTL_REG;
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/*
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* IOC semaphore registers and serialization
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*/
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ioc->ioc_regs.ioc_sem_reg = rb + HOST_SEM0_REG;
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ioc->ioc_regs.ioc_usage_sem_reg = rb + HOST_SEM1_REG;
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ioc->ioc_regs.ioc_init_sem_reg = rb + HOST_SEM2_REG;
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ioc->ioc_regs.ioc_usage_reg = rb + BFA_FW_USE_COUNT;
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ioc->ioc_regs.ioc_fail_sync = rb + BFA_IOC_FAIL_SYNC;
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/**
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* sram memory access
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*/
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ioc->ioc_regs.smem_page_start = rb + PSS_SMEM_PAGE_START;
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ioc->ioc_regs.smem_pg0 = BFI_IOC_SMEM_PG0_CT;
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/*
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* err set reg : for notification of hb failure in fcmode
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*/
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ioc->ioc_regs.err_set = (rb + ERR_SET_REG);
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}
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static void
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bfa_ioc_ct2_reg_init(struct bfa_ioc *ioc)
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{
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void __iomem *rb;
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int port = bfa_ioc_portid(ioc);
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rb = bfa_ioc_bar0(ioc);
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ioc->ioc_regs.hfn_mbox = rb + ct2_reg[port].hfn_mbox;
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ioc->ioc_regs.lpu_mbox = rb + ct2_reg[port].lpu_mbox;
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ioc->ioc_regs.host_page_num_fn = rb + ct2_reg[port].hfn_pgn;
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ioc->ioc_regs.hfn_mbox_cmd = rb + ct2_reg[port].hfn;
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ioc->ioc_regs.lpu_mbox_cmd = rb + ct2_reg[port].lpu;
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ioc->ioc_regs.lpu_read_stat = rb + ct2_reg[port].lpu_read;
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if (port == 0) {
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ioc->ioc_regs.heartbeat = rb + CT2_BFA_IOC0_HBEAT_REG;
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ioc->ioc_regs.ioc_fwstate = rb + CT2_BFA_IOC0_STATE_REG;
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ioc->ioc_regs.alt_ioc_fwstate = rb + CT2_BFA_IOC1_STATE_REG;
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ioc->ioc_regs.ll_halt = rb + FW_INIT_HALT_P0;
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ioc->ioc_regs.alt_ll_halt = rb + FW_INIT_HALT_P1;
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} else {
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ioc->ioc_regs.heartbeat = rb + CT2_BFA_IOC1_HBEAT_REG;
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ioc->ioc_regs.ioc_fwstate = rb + CT2_BFA_IOC1_STATE_REG;
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ioc->ioc_regs.alt_ioc_fwstate = rb + CT2_BFA_IOC0_STATE_REG;
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ioc->ioc_regs.ll_halt = rb + FW_INIT_HALT_P1;
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ioc->ioc_regs.alt_ll_halt = rb + FW_INIT_HALT_P0;
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}
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/*
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* PSS control registers
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*/
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ioc->ioc_regs.pss_ctl_reg = rb + PSS_CTL_REG;
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ioc->ioc_regs.pss_err_status_reg = rb + PSS_ERR_STATUS_REG;
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ioc->ioc_regs.app_pll_fast_ctl_reg = rb + CT2_APP_PLL_LCLK_CTL_REG;
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ioc->ioc_regs.app_pll_slow_ctl_reg = rb + CT2_APP_PLL_SCLK_CTL_REG;
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/*
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* IOC semaphore registers and serialization
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*/
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ioc->ioc_regs.ioc_sem_reg = rb + CT2_HOST_SEM0_REG;
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ioc->ioc_regs.ioc_usage_sem_reg = rb + CT2_HOST_SEM1_REG;
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ioc->ioc_regs.ioc_init_sem_reg = rb + CT2_HOST_SEM2_REG;
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ioc->ioc_regs.ioc_usage_reg = rb + CT2_BFA_FW_USE_COUNT;
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ioc->ioc_regs.ioc_fail_sync = rb + CT2_BFA_IOC_FAIL_SYNC;
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/**
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* sram memory access
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*/
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ioc->ioc_regs.smem_page_start = rb + PSS_SMEM_PAGE_START;
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ioc->ioc_regs.smem_pg0 = BFI_IOC_SMEM_PG0_CT;
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/*
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* err set reg : for notification of hb failure in fcmode
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*/
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ioc->ioc_regs.err_set = rb + ERR_SET_REG;
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}
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/* Initialize IOC to port mapping. */
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#define FNC_PERS_FN_SHIFT(__fn) ((__fn) * 8)
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static void
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bfa_ioc_ct_map_port(struct bfa_ioc *ioc)
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{
|
|
void __iomem *rb = ioc->pcidev.pci_bar_kva;
|
|
u32 r32;
|
|
|
|
/**
|
|
* For catapult, base port id on personality register and IOC type
|
|
*/
|
|
r32 = readl(rb + FNC_PERS_REG);
|
|
r32 >>= FNC_PERS_FN_SHIFT(bfa_ioc_pcifn(ioc));
|
|
ioc->port_id = (r32 & __F0_PORT_MAP_MK) >> __F0_PORT_MAP_SH;
|
|
|
|
}
|
|
|
|
static void
|
|
bfa_ioc_ct2_map_port(struct bfa_ioc *ioc)
|
|
{
|
|
void __iomem *rb = ioc->pcidev.pci_bar_kva;
|
|
u32 r32;
|
|
|
|
r32 = readl(rb + CT2_HOSTFN_PERSONALITY0);
|
|
ioc->port_id = ((r32 & __FC_LL_PORT_MAP__MK) >> __FC_LL_PORT_MAP__SH);
|
|
}
|
|
|
|
/* Set interrupt mode for a function: INTX or MSIX */
|
|
static void
|
|
bfa_ioc_ct_isr_mode_set(struct bfa_ioc *ioc, bool msix)
|
|
{
|
|
void __iomem *rb = ioc->pcidev.pci_bar_kva;
|
|
u32 r32, mode;
|
|
|
|
r32 = readl(rb + FNC_PERS_REG);
|
|
|
|
mode = (r32 >> FNC_PERS_FN_SHIFT(bfa_ioc_pcifn(ioc))) &
|
|
__F0_INTX_STATUS;
|
|
|
|
/**
|
|
* If already in desired mode, do not change anything
|
|
*/
|
|
if ((!msix && mode) || (msix && !mode))
|
|
return;
|
|
|
|
if (msix)
|
|
mode = __F0_INTX_STATUS_MSIX;
|
|
else
|
|
mode = __F0_INTX_STATUS_INTA;
|
|
|
|
r32 &= ~(__F0_INTX_STATUS << FNC_PERS_FN_SHIFT(bfa_ioc_pcifn(ioc)));
|
|
r32 |= (mode << FNC_PERS_FN_SHIFT(bfa_ioc_pcifn(ioc)));
|
|
|
|
writel(r32, rb + FNC_PERS_REG);
|
|
}
|
|
|
|
static bool
|
|
bfa_ioc_ct2_lpu_read_stat(struct bfa_ioc *ioc)
|
|
{
|
|
u32 r32;
|
|
|
|
r32 = readl(ioc->ioc_regs.lpu_read_stat);
|
|
if (r32) {
|
|
writel(1, ioc->ioc_regs.lpu_read_stat);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/* MSI-X resource allocation for 1860 with no asic block */
|
|
#define HOSTFN_MSIX_DEFAULT 64
|
|
#define HOSTFN_MSIX_VT_INDEX_MBOX_ERR 0x30138
|
|
#define HOSTFN_MSIX_VT_OFST_NUMVT 0x3013c
|
|
#define __MSIX_VT_NUMVT__MK 0x003ff800
|
|
#define __MSIX_VT_NUMVT__SH 11
|
|
#define __MSIX_VT_NUMVT_(_v) ((_v) << __MSIX_VT_NUMVT__SH)
|
|
#define __MSIX_VT_OFST_ 0x000007ff
|
|
void
|
|
bfa_nw_ioc_ct2_poweron(struct bfa_ioc *ioc)
|
|
{
|
|
void __iomem *rb = ioc->pcidev.pci_bar_kva;
|
|
u32 r32;
|
|
|
|
r32 = readl(rb + HOSTFN_MSIX_VT_OFST_NUMVT);
|
|
if (r32 & __MSIX_VT_NUMVT__MK) {
|
|
writel(r32 & __MSIX_VT_OFST_,
|
|
rb + HOSTFN_MSIX_VT_INDEX_MBOX_ERR);
|
|
return;
|
|
}
|
|
|
|
writel(__MSIX_VT_NUMVT_(HOSTFN_MSIX_DEFAULT - 1) |
|
|
HOSTFN_MSIX_DEFAULT * bfa_ioc_pcifn(ioc),
|
|
rb + HOSTFN_MSIX_VT_OFST_NUMVT);
|
|
writel(HOSTFN_MSIX_DEFAULT * bfa_ioc_pcifn(ioc),
|
|
rb + HOSTFN_MSIX_VT_INDEX_MBOX_ERR);
|
|
}
|
|
|
|
/* Cleanup hw semaphore and usecnt registers */
|
|
static void
|
|
bfa_ioc_ct_ownership_reset(struct bfa_ioc *ioc)
|
|
{
|
|
bfa_nw_ioc_sem_get(ioc->ioc_regs.ioc_usage_sem_reg);
|
|
writel(0, ioc->ioc_regs.ioc_usage_reg);
|
|
bfa_nw_ioc_sem_release(ioc->ioc_regs.ioc_usage_sem_reg);
|
|
|
|
/*
|
|
* Read the hw sem reg to make sure that it is locked
|
|
* before we clear it. If it is not locked, writing 1
|
|
* will lock it instead of clearing it.
|
|
*/
|
|
readl(ioc->ioc_regs.ioc_sem_reg);
|
|
bfa_nw_ioc_hw_sem_release(ioc);
|
|
}
|
|
|
|
/* Synchronized IOC failure processing routines */
|
|
static bool
|
|
bfa_ioc_ct_sync_start(struct bfa_ioc *ioc)
|
|
{
|
|
u32 r32 = readl(ioc->ioc_regs.ioc_fail_sync);
|
|
u32 sync_reqd = bfa_ioc_ct_get_sync_reqd(r32);
|
|
|
|
/*
|
|
* Driver load time. If the sync required bit for this PCI fn
|
|
* is set, it is due to an unclean exit by the driver for this
|
|
* PCI fn in the previous incarnation. Whoever comes here first
|
|
* should clean it up, no matter which PCI fn.
|
|
*/
|
|
|
|
if (sync_reqd & bfa_ioc_ct_sync_pos(ioc)) {
|
|
writel(0, ioc->ioc_regs.ioc_fail_sync);
|
|
writel(1, ioc->ioc_regs.ioc_usage_reg);
|
|
writel(BFI_IOC_UNINIT, ioc->ioc_regs.ioc_fwstate);
|
|
writel(BFI_IOC_UNINIT, ioc->ioc_regs.alt_ioc_fwstate);
|
|
return true;
|
|
}
|
|
|
|
return bfa_ioc_ct_sync_complete(ioc);
|
|
}
|
|
/* Synchronized IOC failure processing routines */
|
|
static void
|
|
bfa_ioc_ct_sync_join(struct bfa_ioc *ioc)
|
|
{
|
|
u32 r32 = readl(ioc->ioc_regs.ioc_fail_sync);
|
|
u32 sync_pos = bfa_ioc_ct_sync_reqd_pos(ioc);
|
|
|
|
writel((r32 | sync_pos), ioc->ioc_regs.ioc_fail_sync);
|
|
}
|
|
|
|
static void
|
|
bfa_ioc_ct_sync_leave(struct bfa_ioc *ioc)
|
|
{
|
|
u32 r32 = readl(ioc->ioc_regs.ioc_fail_sync);
|
|
u32 sync_msk = bfa_ioc_ct_sync_reqd_pos(ioc) |
|
|
bfa_ioc_ct_sync_pos(ioc);
|
|
|
|
writel((r32 & ~sync_msk), ioc->ioc_regs.ioc_fail_sync);
|
|
}
|
|
|
|
static void
|
|
bfa_ioc_ct_sync_ack(struct bfa_ioc *ioc)
|
|
{
|
|
u32 r32 = readl(ioc->ioc_regs.ioc_fail_sync);
|
|
|
|
writel(r32 | bfa_ioc_ct_sync_pos(ioc), ioc->ioc_regs.ioc_fail_sync);
|
|
}
|
|
|
|
static bool
|
|
bfa_ioc_ct_sync_complete(struct bfa_ioc *ioc)
|
|
{
|
|
u32 r32 = readl(ioc->ioc_regs.ioc_fail_sync);
|
|
u32 sync_reqd = bfa_ioc_ct_get_sync_reqd(r32);
|
|
u32 sync_ackd = bfa_ioc_ct_get_sync_ackd(r32);
|
|
u32 tmp_ackd;
|
|
|
|
if (sync_ackd == 0)
|
|
return true;
|
|
|
|
/**
|
|
* The check below is to see whether any other PCI fn
|
|
* has reinitialized the ASIC (reset sync_ackd bits)
|
|
* and failed again while this IOC was waiting for hw
|
|
* semaphore (in bfa_iocpf_sm_semwait()).
|
|
*/
|
|
tmp_ackd = sync_ackd;
|
|
if ((sync_reqd & bfa_ioc_ct_sync_pos(ioc)) &&
|
|
!(sync_ackd & bfa_ioc_ct_sync_pos(ioc)))
|
|
sync_ackd |= bfa_ioc_ct_sync_pos(ioc);
|
|
|
|
if (sync_reqd == sync_ackd) {
|
|
writel(bfa_ioc_ct_clear_sync_ackd(r32),
|
|
ioc->ioc_regs.ioc_fail_sync);
|
|
writel(BFI_IOC_FAIL, ioc->ioc_regs.ioc_fwstate);
|
|
writel(BFI_IOC_FAIL, ioc->ioc_regs.alt_ioc_fwstate);
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* If another PCI fn reinitialized and failed again while
|
|
* this IOC was waiting for hw sem, the sync_ackd bit for
|
|
* this IOC need to be set again to allow reinitialization.
|
|
*/
|
|
if (tmp_ackd != sync_ackd)
|
|
writel((r32 | sync_ackd), ioc->ioc_regs.ioc_fail_sync);
|
|
|
|
return false;
|
|
}
|
|
|
|
static void
|
|
bfa_ioc_ct_set_cur_ioc_fwstate(struct bfa_ioc *ioc,
|
|
enum bfi_ioc_state fwstate)
|
|
{
|
|
writel(fwstate, ioc->ioc_regs.ioc_fwstate);
|
|
}
|
|
|
|
static enum bfi_ioc_state
|
|
bfa_ioc_ct_get_cur_ioc_fwstate(struct bfa_ioc *ioc)
|
|
{
|
|
return (enum bfi_ioc_state)readl(ioc->ioc_regs.ioc_fwstate);
|
|
}
|
|
|
|
static void
|
|
bfa_ioc_ct_set_alt_ioc_fwstate(struct bfa_ioc *ioc,
|
|
enum bfi_ioc_state fwstate)
|
|
{
|
|
writel(fwstate, ioc->ioc_regs.alt_ioc_fwstate);
|
|
}
|
|
|
|
static enum bfi_ioc_state
|
|
bfa_ioc_ct_get_alt_ioc_fwstate(struct bfa_ioc *ioc)
|
|
{
|
|
return (enum bfi_ioc_state)readl(ioc->ioc_regs.alt_ioc_fwstate);
|
|
}
|
|
|
|
static enum bfa_status
|
|
bfa_ioc_ct_pll_init(void __iomem *rb, enum bfi_asic_mode asic_mode)
|
|
{
|
|
u32 pll_sclk, pll_fclk, r32;
|
|
bool fcmode = (asic_mode == BFI_ASIC_MODE_FC);
|
|
|
|
pll_sclk = __APP_PLL_SCLK_LRESETN | __APP_PLL_SCLK_ENARST |
|
|
__APP_PLL_SCLK_RSEL200500 | __APP_PLL_SCLK_P0_1(3U) |
|
|
__APP_PLL_SCLK_JITLMT0_1(3U) |
|
|
__APP_PLL_SCLK_CNTLMT0_1(1U);
|
|
pll_fclk = __APP_PLL_LCLK_LRESETN | __APP_PLL_LCLK_ENARST |
|
|
__APP_PLL_LCLK_RSEL200500 | __APP_PLL_LCLK_P0_1(3U) |
|
|
__APP_PLL_LCLK_JITLMT0_1(3U) |
|
|
__APP_PLL_LCLK_CNTLMT0_1(1U);
|
|
|
|
if (fcmode) {
|
|
writel(0, (rb + OP_MODE));
|
|
writel(__APP_EMS_CMLCKSEL |
|
|
__APP_EMS_REFCKBUFEN2 |
|
|
__APP_EMS_CHANNEL_SEL,
|
|
(rb + ETH_MAC_SER_REG));
|
|
} else {
|
|
writel(__GLOBAL_FCOE_MODE, (rb + OP_MODE));
|
|
writel(__APP_EMS_REFCKBUFEN1,
|
|
(rb + ETH_MAC_SER_REG));
|
|
}
|
|
writel(BFI_IOC_UNINIT, (rb + BFA_IOC0_STATE_REG));
|
|
writel(BFI_IOC_UNINIT, (rb + BFA_IOC1_STATE_REG));
|
|
writel(0xffffffffU, (rb + HOSTFN0_INT_MSK));
|
|
writel(0xffffffffU, (rb + HOSTFN1_INT_MSK));
|
|
writel(0xffffffffU, (rb + HOSTFN0_INT_STATUS));
|
|
writel(0xffffffffU, (rb + HOSTFN1_INT_STATUS));
|
|
writel(0xffffffffU, (rb + HOSTFN0_INT_MSK));
|
|
writel(0xffffffffU, (rb + HOSTFN1_INT_MSK));
|
|
writel(pll_sclk |
|
|
__APP_PLL_SCLK_LOGIC_SOFT_RESET,
|
|
rb + APP_PLL_SCLK_CTL_REG);
|
|
writel(pll_fclk |
|
|
__APP_PLL_LCLK_LOGIC_SOFT_RESET,
|
|
rb + APP_PLL_LCLK_CTL_REG);
|
|
writel(pll_sclk |
|
|
__APP_PLL_SCLK_LOGIC_SOFT_RESET | __APP_PLL_SCLK_ENABLE,
|
|
rb + APP_PLL_SCLK_CTL_REG);
|
|
writel(pll_fclk |
|
|
__APP_PLL_LCLK_LOGIC_SOFT_RESET | __APP_PLL_LCLK_ENABLE,
|
|
rb + APP_PLL_LCLK_CTL_REG);
|
|
readl(rb + HOSTFN0_INT_MSK);
|
|
udelay(2000);
|
|
writel(0xffffffffU, (rb + HOSTFN0_INT_STATUS));
|
|
writel(0xffffffffU, (rb + HOSTFN1_INT_STATUS));
|
|
writel(pll_sclk |
|
|
__APP_PLL_SCLK_ENABLE,
|
|
rb + APP_PLL_SCLK_CTL_REG);
|
|
writel(pll_fclk |
|
|
__APP_PLL_LCLK_ENABLE,
|
|
rb + APP_PLL_LCLK_CTL_REG);
|
|
|
|
if (!fcmode) {
|
|
writel(__PMM_1T_RESET_P, (rb + PMM_1T_RESET_REG_P0));
|
|
writel(__PMM_1T_RESET_P, (rb + PMM_1T_RESET_REG_P1));
|
|
}
|
|
r32 = readl(rb + PSS_CTL_REG);
|
|
r32 &= ~__PSS_LMEM_RESET;
|
|
writel(r32, (rb + PSS_CTL_REG));
|
|
udelay(1000);
|
|
if (!fcmode) {
|
|
writel(0, (rb + PMM_1T_RESET_REG_P0));
|
|
writel(0, (rb + PMM_1T_RESET_REG_P1));
|
|
}
|
|
|
|
writel(__EDRAM_BISTR_START, (rb + MBIST_CTL_REG));
|
|
udelay(1000);
|
|
r32 = readl(rb + MBIST_STAT_REG);
|
|
writel(0, (rb + MBIST_CTL_REG));
|
|
return BFA_STATUS_OK;
|
|
}
|
|
|
|
static void
|
|
bfa_ioc_ct2_sclk_init(void __iomem *rb)
|
|
{
|
|
u32 r32;
|
|
|
|
/*
|
|
* put s_clk PLL and PLL FSM in reset
|
|
*/
|
|
r32 = readl(rb + CT2_APP_PLL_SCLK_CTL_REG);
|
|
r32 &= ~(__APP_PLL_SCLK_ENABLE | __APP_PLL_SCLK_LRESETN);
|
|
r32 |= (__APP_PLL_SCLK_ENARST | __APP_PLL_SCLK_BYPASS |
|
|
__APP_PLL_SCLK_LOGIC_SOFT_RESET);
|
|
writel(r32, (rb + CT2_APP_PLL_SCLK_CTL_REG));
|
|
|
|
/*
|
|
* Ignore mode and program for the max clock (which is FC16)
|
|
* Firmware/NFC will do the PLL init appropriately
|
|
*/
|
|
r32 = readl(rb + CT2_APP_PLL_SCLK_CTL_REG);
|
|
r32 &= ~(__APP_PLL_SCLK_REFCLK_SEL | __APP_PLL_SCLK_CLK_DIV2);
|
|
writel(r32, (rb + CT2_APP_PLL_SCLK_CTL_REG));
|
|
|
|
/*
|
|
* while doing PLL init dont clock gate ethernet subsystem
|
|
*/
|
|
r32 = readl(rb + CT2_CHIP_MISC_PRG);
|
|
writel(r32 | __ETH_CLK_ENABLE_PORT0,
|
|
rb + CT2_CHIP_MISC_PRG);
|
|
|
|
r32 = readl(rb + CT2_PCIE_MISC_REG);
|
|
writel(r32 | __ETH_CLK_ENABLE_PORT1,
|
|
rb + CT2_PCIE_MISC_REG);
|
|
|
|
/*
|
|
* set sclk value
|
|
*/
|
|
r32 = readl(rb + CT2_APP_PLL_SCLK_CTL_REG);
|
|
r32 &= (__P_SCLK_PLL_LOCK | __APP_PLL_SCLK_REFCLK_SEL |
|
|
__APP_PLL_SCLK_CLK_DIV2);
|
|
writel(r32 | 0x1061731b, rb + CT2_APP_PLL_SCLK_CTL_REG);
|
|
|
|
/*
|
|
* poll for s_clk lock or delay 1ms
|
|
*/
|
|
udelay(1000);
|
|
|
|
/*
|
|
* Dont do clock gating for ethernet subsystem, firmware/NFC will
|
|
* do this appropriately
|
|
*/
|
|
}
|
|
|
|
static void
|
|
bfa_ioc_ct2_lclk_init(void __iomem *rb)
|
|
{
|
|
u32 r32;
|
|
|
|
/*
|
|
* put l_clk PLL and PLL FSM in reset
|
|
*/
|
|
r32 = readl(rb + CT2_APP_PLL_LCLK_CTL_REG);
|
|
r32 &= ~(__APP_PLL_LCLK_ENABLE | __APP_PLL_LCLK_LRESETN);
|
|
r32 |= (__APP_PLL_LCLK_ENARST | __APP_PLL_LCLK_BYPASS |
|
|
__APP_PLL_LCLK_LOGIC_SOFT_RESET);
|
|
writel(r32, rb + CT2_APP_PLL_LCLK_CTL_REG);
|
|
|
|
/*
|
|
* set LPU speed (set for FC16 which will work for other modes)
|
|
*/
|
|
r32 = readl(rb + CT2_CHIP_MISC_PRG);
|
|
writel(r32, (rb + CT2_CHIP_MISC_PRG));
|
|
|
|
/*
|
|
* set LPU half speed (set for FC16 which will work for other modes)
|
|
*/
|
|
r32 = readl(rb + CT2_APP_PLL_LCLK_CTL_REG);
|
|
writel(r32, rb + CT2_APP_PLL_LCLK_CTL_REG);
|
|
|
|
/*
|
|
* set lclk for mode (set for FC16)
|
|
*/
|
|
r32 = readl(rb + CT2_APP_PLL_LCLK_CTL_REG);
|
|
r32 &= (__P_LCLK_PLL_LOCK | __APP_LPUCLK_HALFSPEED);
|
|
r32 |= 0x20c1731b;
|
|
writel(r32, (rb + CT2_APP_PLL_LCLK_CTL_REG));
|
|
|
|
/*
|
|
* poll for s_clk lock or delay 1ms
|
|
*/
|
|
udelay(1000);
|
|
}
|
|
|
|
static void
|
|
bfa_ioc_ct2_mem_init(void __iomem *rb)
|
|
{
|
|
u32 r32;
|
|
|
|
r32 = readl(rb + PSS_CTL_REG);
|
|
r32 &= ~__PSS_LMEM_RESET;
|
|
writel(r32, rb + PSS_CTL_REG);
|
|
udelay(1000);
|
|
|
|
writel(__EDRAM_BISTR_START, rb + CT2_MBIST_CTL_REG);
|
|
udelay(1000);
|
|
writel(0, rb + CT2_MBIST_CTL_REG);
|
|
}
|
|
|
|
static void
|
|
bfa_ioc_ct2_mac_reset(void __iomem *rb)
|
|
{
|
|
volatile u32 r32;
|
|
|
|
bfa_ioc_ct2_sclk_init(rb);
|
|
bfa_ioc_ct2_lclk_init(rb);
|
|
|
|
/*
|
|
* release soft reset on s_clk & l_clk
|
|
*/
|
|
r32 = readl(rb + CT2_APP_PLL_SCLK_CTL_REG);
|
|
writel(r32 & ~__APP_PLL_SCLK_LOGIC_SOFT_RESET,
|
|
rb + CT2_APP_PLL_SCLK_CTL_REG);
|
|
|
|
/*
|
|
* release soft reset on s_clk & l_clk
|
|
*/
|
|
r32 = readl(rb + CT2_APP_PLL_LCLK_CTL_REG);
|
|
writel(r32 & ~__APP_PLL_LCLK_LOGIC_SOFT_RESET,
|
|
rb + CT2_APP_PLL_LCLK_CTL_REG);
|
|
|
|
/* put port0, port1 MAC & AHB in reset */
|
|
writel(__CSI_MAC_RESET | __CSI_MAC_AHB_RESET,
|
|
rb + CT2_CSI_MAC_CONTROL_REG(0));
|
|
writel(__CSI_MAC_RESET | __CSI_MAC_AHB_RESET,
|
|
rb + CT2_CSI_MAC_CONTROL_REG(1));
|
|
}
|
|
|
|
#define CT2_NFC_MAX_DELAY 1000
|
|
#define CT2_NFC_VER_VALID 0x143
|
|
#define BFA_IOC_PLL_POLL 1000000
|
|
|
|
static bool
|
|
bfa_ioc_ct2_nfc_halted(void __iomem *rb)
|
|
{
|
|
volatile u32 r32;
|
|
|
|
r32 = readl(rb + CT2_NFC_CSR_SET_REG);
|
|
if (r32 & __NFC_CONTROLLER_HALTED)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
static void
|
|
bfa_ioc_ct2_nfc_resume(void __iomem *rb)
|
|
{
|
|
volatile u32 r32;
|
|
int i;
|
|
|
|
writel(__HALT_NFC_CONTROLLER, rb + CT2_NFC_CSR_CLR_REG);
|
|
for (i = 0; i < CT2_NFC_MAX_DELAY; i++) {
|
|
r32 = readl(rb + CT2_NFC_CSR_SET_REG);
|
|
if (!(r32 & __NFC_CONTROLLER_HALTED))
|
|
return;
|
|
udelay(1000);
|
|
}
|
|
BUG_ON(1);
|
|
}
|
|
|
|
static enum bfa_status
|
|
bfa_ioc_ct2_pll_init(void __iomem *rb, enum bfi_asic_mode asic_mode)
|
|
{
|
|
volatile u32 wgn, r32;
|
|
u32 nfc_ver, i;
|
|
|
|
wgn = readl(rb + CT2_WGN_STATUS);
|
|
|
|
nfc_ver = readl(rb + CT2_RSC_GPR15_REG);
|
|
|
|
if (wgn == (__A2T_AHB_LOAD | __WGN_READY) &&
|
|
nfc_ver >= CT2_NFC_VER_VALID) {
|
|
if (bfa_ioc_ct2_nfc_halted(rb))
|
|
bfa_ioc_ct2_nfc_resume(rb);
|
|
writel(__RESET_AND_START_SCLK_LCLK_PLLS,
|
|
rb + CT2_CSI_FW_CTL_SET_REG);
|
|
|
|
for (i = 0; i < BFA_IOC_PLL_POLL; i++) {
|
|
r32 = readl(rb + CT2_APP_PLL_LCLK_CTL_REG);
|
|
if (r32 & __RESET_AND_START_SCLK_LCLK_PLLS)
|
|
break;
|
|
}
|
|
BUG_ON(!(r32 & __RESET_AND_START_SCLK_LCLK_PLLS));
|
|
|
|
for (i = 0; i < BFA_IOC_PLL_POLL; i++) {
|
|
r32 = readl(rb + CT2_APP_PLL_LCLK_CTL_REG);
|
|
if (!(r32 & __RESET_AND_START_SCLK_LCLK_PLLS))
|
|
break;
|
|
}
|
|
BUG_ON(r32 & __RESET_AND_START_SCLK_LCLK_PLLS);
|
|
udelay(1000);
|
|
|
|
r32 = readl(rb + CT2_CSI_FW_CTL_REG);
|
|
BUG_ON(r32 & __RESET_AND_START_SCLK_LCLK_PLLS);
|
|
} else {
|
|
writel(__HALT_NFC_CONTROLLER, (rb + CT2_NFC_CSR_SET_REG));
|
|
for (i = 0; i < CT2_NFC_MAX_DELAY; i++) {
|
|
r32 = readl(rb + CT2_NFC_CSR_SET_REG);
|
|
if (r32 & __NFC_CONTROLLER_HALTED)
|
|
break;
|
|
udelay(1000);
|
|
}
|
|
|
|
bfa_ioc_ct2_mac_reset(rb);
|
|
bfa_ioc_ct2_sclk_init(rb);
|
|
bfa_ioc_ct2_lclk_init(rb);
|
|
|
|
/* release soft reset on s_clk & l_clk */
|
|
r32 = readl(rb + CT2_APP_PLL_SCLK_CTL_REG);
|
|
writel(r32 & ~__APP_PLL_SCLK_LOGIC_SOFT_RESET,
|
|
rb + CT2_APP_PLL_SCLK_CTL_REG);
|
|
r32 = readl(rb + CT2_APP_PLL_LCLK_CTL_REG);
|
|
writel(r32 & ~__APP_PLL_LCLK_LOGIC_SOFT_RESET,
|
|
rb + CT2_APP_PLL_LCLK_CTL_REG);
|
|
}
|
|
|
|
/* Announce flash device presence, if flash was corrupted. */
|
|
if (wgn == (__WGN_READY | __GLBL_PF_VF_CFG_RDY)) {
|
|
r32 = readl(rb + PSS_GPIO_OUT_REG);
|
|
writel(r32 & ~1, rb + PSS_GPIO_OUT_REG);
|
|
r32 = readl(rb + PSS_GPIO_OE_REG);
|
|
writel(r32 | 1, rb + PSS_GPIO_OE_REG);
|
|
}
|
|
|
|
/*
|
|
* Mask the interrupts and clear any
|
|
* pending interrupts left by BIOS/EFI
|
|
*/
|
|
writel(1, rb + CT2_LPU0_HOSTFN_MBOX0_MSK);
|
|
writel(1, rb + CT2_LPU1_HOSTFN_MBOX0_MSK);
|
|
|
|
/* For first time initialization, no need to clear interrupts */
|
|
r32 = readl(rb + HOST_SEM5_REG);
|
|
if (r32 & 0x1) {
|
|
r32 = readl(rb + CT2_LPU0_HOSTFN_CMD_STAT);
|
|
if (r32 == 1) {
|
|
writel(1, rb + CT2_LPU0_HOSTFN_CMD_STAT);
|
|
readl(rb + CT2_LPU0_HOSTFN_CMD_STAT);
|
|
}
|
|
r32 = readl(rb + CT2_LPU1_HOSTFN_CMD_STAT);
|
|
if (r32 == 1) {
|
|
writel(1, rb + CT2_LPU1_HOSTFN_CMD_STAT);
|
|
readl(rb + CT2_LPU1_HOSTFN_CMD_STAT);
|
|
}
|
|
}
|
|
|
|
bfa_ioc_ct2_mem_init(rb);
|
|
|
|
writel(BFI_IOC_UNINIT, rb + CT2_BFA_IOC0_STATE_REG);
|
|
writel(BFI_IOC_UNINIT, rb + CT2_BFA_IOC1_STATE_REG);
|
|
return BFA_STATUS_OK;
|
|
}
|