/* * Copyright (c) 2005-2009 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 #include #include #include #include #include #include #include #include BFA_TRC_FILE(CNA, IOC_CB); /* * forward declarations */ static bfa_status_t bfa_ioc_cb_pll_init(struct bfa_ioc_s *ioc); 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 u32 *bfa_ioc_cb_fwimg_get_chunk(struct bfa_ioc_s *ioc, u32 off); static u32 bfa_ioc_cb_fwimg_get_size(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); struct bfa_ioc_hwif_s hwif_cb = { bfa_ioc_cb_pll_init, bfa_ioc_cb_firmware_lock, bfa_ioc_cb_firmware_unlock, bfa_ioc_cb_fwimg_get_chunk, bfa_ioc_cb_fwimg_get_size, bfa_ioc_cb_reg_init, bfa_ioc_cb_map_port, bfa_ioc_cb_isr_mode_set, bfa_ioc_cb_notify_hbfail, bfa_ioc_cb_ownership_reset, }; /** * Called from bfa_ioc_attach() to map asic specific calls. */ void bfa_ioc_set_cb_hwif(struct bfa_ioc_s *ioc) { ioc->ioc_hwif = &hwif_cb; } static u32 * bfa_ioc_cb_fwimg_get_chunk(struct bfa_ioc_s *ioc, u32 off) { return bfi_image_cb_get_chunk(off); } static u32 bfa_ioc_cb_fwimg_get_size(struct bfa_ioc_s *ioc) { return bfi_image_cb_size; } /** * 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) { bfa_reg_write(ioc->ioc_regs.err_set, __PSS_ERR_STATUS_SET); bfa_reg_read(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) { bfa_os_addr_t 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) { } static bfa_status_t bfa_ioc_cb_pll_init(struct bfa_ioc_s *ioc) { bfa_os_addr_t rb = ioc->pcidev.pci_bar_kva; u32 pll_sclk, pll_fclk; /* * Hold semaphore so that nobody can access the chip during init. */ bfa_ioc_sem_get(ioc->ioc_regs.ioc_init_sem_reg); 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); bfa_reg_write((rb + BFA_IOC0_STATE_REG), BFI_IOC_UNINIT); bfa_reg_write((rb + BFA_IOC1_STATE_REG), BFI_IOC_UNINIT); bfa_reg_write((rb + HOSTFN0_INT_MSK), 0xffffffffU); bfa_reg_write((rb + HOSTFN1_INT_MSK), 0xffffffffU); bfa_reg_write((rb + HOSTFN0_INT_STATUS), 0xffffffffU); bfa_reg_write((rb + HOSTFN1_INT_STATUS), 0xffffffffU); bfa_reg_write((rb + HOSTFN0_INT_MSK), 0xffffffffU); bfa_reg_write((rb + HOSTFN1_INT_MSK), 0xffffffffU); bfa_reg_write(ioc->ioc_regs.app_pll_slow_ctl_reg, __APP_PLL_212_LOGIC_SOFT_RESET); bfa_reg_write(ioc->ioc_regs.app_pll_slow_ctl_reg, __APP_PLL_212_BYPASS | __APP_PLL_212_LOGIC_SOFT_RESET); bfa_reg_write(ioc->ioc_regs.app_pll_fast_ctl_reg, __APP_PLL_400_LOGIC_SOFT_RESET); bfa_reg_write(ioc->ioc_regs.app_pll_fast_ctl_reg, __APP_PLL_400_BYPASS | __APP_PLL_400_LOGIC_SOFT_RESET); bfa_os_udelay(2); bfa_reg_write(ioc->ioc_regs.app_pll_slow_ctl_reg, __APP_PLL_212_LOGIC_SOFT_RESET); bfa_reg_write(ioc->ioc_regs.app_pll_fast_ctl_reg, __APP_PLL_400_LOGIC_SOFT_RESET); bfa_reg_write(ioc->ioc_regs.app_pll_slow_ctl_reg, pll_sclk | __APP_PLL_212_LOGIC_SOFT_RESET); bfa_reg_write(ioc->ioc_regs.app_pll_fast_ctl_reg, pll_fclk | __APP_PLL_400_LOGIC_SOFT_RESET); /** * Wait for PLLs to lock. */ bfa_os_udelay(2000); bfa_reg_write((rb + HOSTFN0_INT_STATUS), 0xffffffffU); bfa_reg_write((rb + HOSTFN1_INT_STATUS), 0xffffffffU); bfa_reg_write(ioc->ioc_regs.app_pll_slow_ctl_reg, pll_sclk); bfa_reg_write(ioc->ioc_regs.app_pll_fast_ctl_reg, pll_fclk); /* * release semaphore. */ bfa_ioc_sem_release(ioc->ioc_regs.ioc_init_sem_reg); return BFA_STATUS_OK; } /** * 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. */ bfa_reg_read(ioc->ioc_regs.ioc_sem_reg); bfa_ioc_hw_sem_release(ioc); }