/* * Copyright (c) 2005-2010 Brocade Communications Systems, Inc. * All rights reserved * www.brocade.com * * Linux driver for Brocade Fibre Channel Host Bus Adapter. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License (GPL) Version 2 as * published by the Free Software Foundation * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. */ #include "bfad_drv.h" #include "bfa_ioc.h" #include "bfi_cbreg.h" #include "bfa_defs.h" BFA_TRC_FILE(CNA, IOC_CB); /* * forward declarations */ static bfa_boolean_t bfa_ioc_cb_firmware_lock(struct bfa_ioc_s *ioc); static void bfa_ioc_cb_firmware_unlock(struct bfa_ioc_s *ioc); static void bfa_ioc_cb_reg_init(struct bfa_ioc_s *ioc); static void bfa_ioc_cb_map_port(struct bfa_ioc_s *ioc); static void bfa_ioc_cb_isr_mode_set(struct bfa_ioc_s *ioc, bfa_boolean_t msix); static void bfa_ioc_cb_notify_hbfail(struct bfa_ioc_s *ioc); static void bfa_ioc_cb_ownership_reset(struct bfa_ioc_s *ioc); static struct bfa_ioc_hwif_s hwif_cb; /* * Called from bfa_ioc_attach() to map asic specific calls. */ void bfa_ioc_set_cb_hwif(struct bfa_ioc_s *ioc) { hwif_cb.ioc_pll_init = bfa_ioc_cb_pll_init; hwif_cb.ioc_firmware_lock = bfa_ioc_cb_firmware_lock; hwif_cb.ioc_firmware_unlock = bfa_ioc_cb_firmware_unlock; hwif_cb.ioc_reg_init = bfa_ioc_cb_reg_init; hwif_cb.ioc_map_port = bfa_ioc_cb_map_port; hwif_cb.ioc_isr_mode_set = bfa_ioc_cb_isr_mode_set; hwif_cb.ioc_notify_hbfail = bfa_ioc_cb_notify_hbfail; hwif_cb.ioc_ownership_reset = bfa_ioc_cb_ownership_reset; ioc->ioc_hwif = &hwif_cb; } /* * Return true if firmware of current driver matches the running firmware. */ static bfa_boolean_t bfa_ioc_cb_firmware_lock(struct bfa_ioc_s *ioc) { return BFA_TRUE; } static void bfa_ioc_cb_firmware_unlock(struct bfa_ioc_s *ioc) { } /* * Notify other functions on HB failure. */ static void bfa_ioc_cb_notify_hbfail(struct bfa_ioc_s *ioc) { writel(__PSS_ERR_STATUS_SET, ioc->ioc_regs.err_set); readl(ioc->ioc_regs.err_set); } /* * Host to LPU mailbox message addresses */ static struct { u32 hfn_mbox, lpu_mbox, hfn_pgn; } iocreg_fnreg[] = { { HOSTFN0_LPU_MBOX0_0, LPU_HOSTFN0_MBOX0_0, HOST_PAGE_NUM_FN0 }, { HOSTFN1_LPU_MBOX0_8, LPU_HOSTFN1_MBOX0_8, HOST_PAGE_NUM_FN1 } }; /* * Host <-> LPU mailbox command/status registers */ static struct { u32 hfn, lpu; } iocreg_mbcmd[] = { { HOSTFN0_LPU0_CMD_STAT, LPU0_HOSTFN0_CMD_STAT }, { HOSTFN1_LPU1_CMD_STAT, LPU1_HOSTFN1_CMD_STAT } }; static void bfa_ioc_cb_reg_init(struct bfa_ioc_s *ioc) { void __iomem *rb; int pcifn = bfa_ioc_pcifn(ioc); rb = bfa_ioc_bar0(ioc); ioc->ioc_regs.hfn_mbox = rb + iocreg_fnreg[pcifn].hfn_mbox; ioc->ioc_regs.lpu_mbox = rb + iocreg_fnreg[pcifn].lpu_mbox; ioc->ioc_regs.host_page_num_fn = rb + iocreg_fnreg[pcifn].hfn_pgn; if (ioc->port_id == 0) { ioc->ioc_regs.heartbeat = rb + BFA_IOC0_HBEAT_REG; ioc->ioc_regs.ioc_fwstate = rb + BFA_IOC0_STATE_REG; } else { ioc->ioc_regs.heartbeat = (rb + BFA_IOC1_HBEAT_REG); ioc->ioc_regs.ioc_fwstate = (rb + BFA_IOC1_STATE_REG); } /* * Host <-> LPU mailbox command/status registers */ ioc->ioc_regs.hfn_mbox_cmd = rb + iocreg_mbcmd[pcifn].hfn; ioc->ioc_regs.lpu_mbox_cmd = rb + iocreg_mbcmd[pcifn].lpu; /* * PSS control registers */ ioc->ioc_regs.pss_ctl_reg = (rb + PSS_CTL_REG); ioc->ioc_regs.pss_err_status_reg = (rb + PSS_ERR_STATUS_REG); ioc->ioc_regs.app_pll_fast_ctl_reg = (rb + APP_PLL_400_CTL_REG); ioc->ioc_regs.app_pll_slow_ctl_reg = (rb + APP_PLL_212_CTL_REG); /* * IOC semaphore registers and serialization */ ioc->ioc_regs.ioc_sem_reg = (rb + HOST_SEM0_REG); ioc->ioc_regs.ioc_init_sem_reg = (rb + HOST_SEM2_REG); /* * sram memory access */ ioc->ioc_regs.smem_page_start = (rb + PSS_SMEM_PAGE_START); ioc->ioc_regs.smem_pg0 = BFI_IOC_SMEM_PG0_CB; /* * err set reg : for notification of hb failure */ ioc->ioc_regs.err_set = (rb + ERR_SET_REG); } /* * Initialize IOC to port mapping. */ static void bfa_ioc_cb_map_port(struct bfa_ioc_s *ioc) { /* * For crossbow, port id is same as pci function. */ ioc->port_id = bfa_ioc_pcifn(ioc); bfa_trc(ioc, ioc->port_id); } /* * Set interrupt mode for a function: INTX or MSIX */ static void bfa_ioc_cb_isr_mode_set(struct bfa_ioc_s *ioc, bfa_boolean_t msix) { } /* * Cleanup hw semaphore and usecnt registers */ static void bfa_ioc_cb_ownership_reset(struct bfa_ioc_s *ioc) { /* * 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); writel(1, ioc->ioc_regs.ioc_sem_reg); } bfa_status_t bfa_ioc_cb_pll_init(void __iomem *rb, bfa_boolean_t fcmode) { u32 pll_sclk, pll_fclk; pll_sclk = __APP_PLL_212_ENABLE | __APP_PLL_212_LRESETN | __APP_PLL_212_P0_1(3U) | __APP_PLL_212_JITLMT0_1(3U) | __APP_PLL_212_CNTLMT0_1(3U); pll_fclk = __APP_PLL_400_ENABLE | __APP_PLL_400_LRESETN | __APP_PLL_400_RSEL200500 | __APP_PLL_400_P0_1(3U) | __APP_PLL_400_JITLMT0_1(3U) | __APP_PLL_400_CNTLMT0_1(3U); 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(__APP_PLL_212_LOGIC_SOFT_RESET, rb + APP_PLL_212_CTL_REG); writel(__APP_PLL_212_BYPASS | __APP_PLL_212_LOGIC_SOFT_RESET, rb + APP_PLL_212_CTL_REG); writel(__APP_PLL_400_LOGIC_SOFT_RESET, rb + APP_PLL_400_CTL_REG); writel(__APP_PLL_400_BYPASS | __APP_PLL_400_LOGIC_SOFT_RESET, rb + APP_PLL_400_CTL_REG); udelay(2); writel(__APP_PLL_212_LOGIC_SOFT_RESET, rb + APP_PLL_212_CTL_REG); writel(__APP_PLL_400_LOGIC_SOFT_RESET, rb + APP_PLL_400_CTL_REG); writel(pll_sclk | __APP_PLL_212_LOGIC_SOFT_RESET, rb + APP_PLL_212_CTL_REG); writel(pll_fclk | __APP_PLL_400_LOGIC_SOFT_RESET, rb + APP_PLL_400_CTL_REG); udelay(2000); writel(0xffffffffU, (rb + HOSTFN0_INT_STATUS)); writel(0xffffffffU, (rb + HOSTFN1_INT_STATUS)); writel(pll_sclk, (rb + APP_PLL_212_CTL_REG)); writel(pll_fclk, (rb + APP_PLL_400_CTL_REG)); return BFA_STATUS_OK; }