![Linus Torvalds](/assets/img/avatar_default.png)
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (48 commits) Documentation: update broken web addresses. fix comment typo "choosed" -> "chosen" hostap:hostap_hw.c Fix typo in comment Fix spelling contorller -> controller in comments Kconfig.debug: FAIL_IO_TIMEOUT: typo Faul -> Fault fs/Kconfig: Fix typo Userpace -> Userspace Removing dead MACH_U300_BS26 drivers/infiniband: Remove unnecessary casts of private_data fs/ocfs2: Remove unnecessary casts of private_data libfc: use ARRAY_SIZE scsi: bfa: use ARRAY_SIZE drm: i915: use ARRAY_SIZE drm: drm_edid: use ARRAY_SIZE synclink: use ARRAY_SIZE block: cciss: use ARRAY_SIZE comment typo fixes: charater => character fix comment typos concerning "challenge" arm: plat-spear: fix typo in kerneldoc reiserfs: typo comment fix update email address ...
445 lines
11 KiB
C
445 lines
11 KiB
C
/*
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* Copyright (c) 2005-2009 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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* Linux driver for Brocade Fibre Channel Host Bus 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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#include <bfa.h>
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#include <defs/bfa_defs_pci.h>
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#include <cs/bfa_debug.h>
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#include <bfa_iocfc.h>
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#define DEF_CFG_NUM_FABRICS 1
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#define DEF_CFG_NUM_LPORTS 256
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#define DEF_CFG_NUM_CQS 4
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#define DEF_CFG_NUM_IOIM_REQS (BFA_IOIM_MAX)
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#define DEF_CFG_NUM_TSKIM_REQS 128
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#define DEF_CFG_NUM_FCXP_REQS 64
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#define DEF_CFG_NUM_UF_BUFS 64
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#define DEF_CFG_NUM_RPORTS 1024
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#define DEF_CFG_NUM_ITNIMS (DEF_CFG_NUM_RPORTS)
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#define DEF_CFG_NUM_TINS 256
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#define DEF_CFG_NUM_SGPGS 2048
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#define DEF_CFG_NUM_REQQ_ELEMS 256
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#define DEF_CFG_NUM_RSPQ_ELEMS 64
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#define DEF_CFG_NUM_SBOOT_TGTS 16
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#define DEF_CFG_NUM_SBOOT_LUNS 16
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/**
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* Use this function query the memory requirement of the BFA library.
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* This function needs to be called before bfa_attach() to get the
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* memory required of the BFA layer for a given driver configuration.
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*
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* This call will fail, if the cap is out of range compared to pre-defined
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* values within the BFA library
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*
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* @param[in] cfg - pointer to bfa_ioc_cfg_t. Driver layer should indicate
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* its configuration in this structure.
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* The default values for struct bfa_iocfc_cfg_s can be
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* fetched using bfa_cfg_get_default() API.
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*
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* If cap's boundary check fails, the library will use
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* the default bfa_cap_t values (and log a warning msg).
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*
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* @param[out] meminfo - pointer to bfa_meminfo_t. This content
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* indicates the memory type (see bfa_mem_type_t) and
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* amount of memory required.
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*
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* Driver should allocate the memory, populate the
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* starting address for each block and provide the same
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* structure as input parameter to bfa_attach() call.
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*
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* @return void
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*
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* Special Considerations: @note
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*/
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void
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bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo)
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{
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int i;
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u32 km_len = 0, dm_len = 0;
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bfa_assert((cfg != NULL) && (meminfo != NULL));
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bfa_os_memset((void *)meminfo, 0, sizeof(struct bfa_meminfo_s));
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meminfo->meminfo[BFA_MEM_TYPE_KVA - 1].mem_type =
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BFA_MEM_TYPE_KVA;
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meminfo->meminfo[BFA_MEM_TYPE_DMA - 1].mem_type =
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BFA_MEM_TYPE_DMA;
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bfa_iocfc_meminfo(cfg, &km_len, &dm_len);
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for (i = 0; hal_mods[i]; i++)
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hal_mods[i]->meminfo(cfg, &km_len, &dm_len);
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dm_len += bfa_port_meminfo();
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meminfo->meminfo[BFA_MEM_TYPE_KVA - 1].mem_len = km_len;
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meminfo->meminfo[BFA_MEM_TYPE_DMA - 1].mem_len = dm_len;
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}
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static void
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bfa_com_port_attach(struct bfa_s *bfa, struct bfa_meminfo_s *mi)
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{
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struct bfa_port_s *port = &bfa->modules.port;
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uint32_t dm_len;
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uint8_t *dm_kva;
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uint64_t dm_pa;
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dm_len = bfa_port_meminfo();
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dm_kva = bfa_meminfo_dma_virt(mi);
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dm_pa = bfa_meminfo_dma_phys(mi);
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memset(port, 0, sizeof(struct bfa_port_s));
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bfa_port_attach(port, &bfa->ioc, bfa, bfa->trcmod, bfa->logm);
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bfa_port_mem_claim(port, dm_kva, dm_pa);
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bfa_meminfo_dma_virt(mi) = dm_kva + dm_len;
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bfa_meminfo_dma_phys(mi) = dm_pa + dm_len;
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}
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/**
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* Use this function to do attach the driver instance with the BFA
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* library. This function will not trigger any HW initialization
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* process (which will be done in bfa_init() call)
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*
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* This call will fail, if the cap is out of range compared to
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* pre-defined values within the BFA library
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*
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* @param[out] bfa Pointer to bfa_t.
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* @param[in] bfad Opaque handle back to the driver's IOC structure
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* @param[in] cfg Pointer to bfa_ioc_cfg_t. Should be same structure
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* that was used in bfa_cfg_get_meminfo().
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* @param[in] meminfo Pointer to bfa_meminfo_t. The driver should
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* use the bfa_cfg_get_meminfo() call to
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* find the memory blocks required, allocate the
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* required memory and provide the starting addresses.
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* @param[in] pcidev pointer to struct bfa_pcidev_s
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*
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* @return
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* void
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*
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* Special Considerations:
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*
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* @note
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*
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*/
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void
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bfa_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
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struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev)
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{
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int i;
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struct bfa_mem_elem_s *melem;
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bfa->fcs = BFA_FALSE;
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bfa_assert((cfg != NULL) && (meminfo != NULL));
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/**
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* initialize all memory pointers for iterative allocation
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*/
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for (i = 0; i < BFA_MEM_TYPE_MAX; i++) {
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melem = meminfo->meminfo + i;
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melem->kva_curp = melem->kva;
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melem->dma_curp = melem->dma;
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}
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bfa_iocfc_attach(bfa, bfad, cfg, meminfo, pcidev);
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for (i = 0; hal_mods[i]; i++)
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hal_mods[i]->attach(bfa, bfad, cfg, meminfo, pcidev);
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bfa_com_port_attach(bfa, meminfo);
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}
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/**
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* Use this function to delete a BFA IOC. IOC should be stopped (by
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* calling bfa_stop()) before this function call.
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*
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* @param[in] bfa - pointer to bfa_t.
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*
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* @return
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* void
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*
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* Special Considerations:
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*
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* @note
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*/
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void
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bfa_detach(struct bfa_s *bfa)
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{
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int i;
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for (i = 0; hal_mods[i]; i++)
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hal_mods[i]->detach(bfa);
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bfa_iocfc_detach(bfa);
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}
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void
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bfa_init_trc(struct bfa_s *bfa, struct bfa_trc_mod_s *trcmod)
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{
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bfa->trcmod = trcmod;
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}
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void
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bfa_init_log(struct bfa_s *bfa, struct bfa_log_mod_s *logmod)
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{
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bfa->logm = logmod;
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}
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void
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bfa_init_aen(struct bfa_s *bfa, struct bfa_aen_s *aen)
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{
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bfa->aen = aen;
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}
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void
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bfa_init_plog(struct bfa_s *bfa, struct bfa_plog_s *plog)
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{
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bfa->plog = plog;
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}
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/**
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* Initialize IOC.
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*
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* This function will return immediately, when the IOC initialization is
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* completed, the bfa_cb_init() will be called.
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*
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* @param[in] bfa instance
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*
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* @return void
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*
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* Special Considerations:
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*
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* @note
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* When this function returns, the driver should register the interrupt service
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* routine(s) and enable the device interrupts. If this is not done,
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* bfa_cb_init() will never get called
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*/
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void
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bfa_init(struct bfa_s *bfa)
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{
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bfa_iocfc_init(bfa);
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}
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/**
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* Use this function initiate the IOC configuration setup. This function
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* will return immediately.
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*
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* @param[in] bfa instance
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*
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* @return None
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*/
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void
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bfa_start(struct bfa_s *bfa)
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{
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bfa_iocfc_start(bfa);
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}
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/**
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* Use this function quiese the IOC. This function will return immediately,
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* when the IOC is actually stopped, the bfa_cb_stop() will be called.
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*
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* @param[in] bfa - pointer to bfa_t.
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*
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* @return None
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*
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* Special Considerations:
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* bfa_cb_stop() could be called before or after bfa_stop() returns.
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*
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* @note
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* In case of any failure, we could handle it automatically by doing a
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* reset and then succeed the bfa_stop() call.
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*/
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void
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bfa_stop(struct bfa_s *bfa)
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{
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bfa_iocfc_stop(bfa);
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}
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void
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bfa_comp_deq(struct bfa_s *bfa, struct list_head *comp_q)
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{
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INIT_LIST_HEAD(comp_q);
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list_splice_tail_init(&bfa->comp_q, comp_q);
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}
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void
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bfa_comp_process(struct bfa_s *bfa, struct list_head *comp_q)
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{
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struct list_head *qe;
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struct list_head *qen;
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struct bfa_cb_qe_s *hcb_qe;
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list_for_each_safe(qe, qen, comp_q) {
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hcb_qe = (struct bfa_cb_qe_s *) qe;
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hcb_qe->cbfn(hcb_qe->cbarg, BFA_TRUE);
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}
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}
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void
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bfa_comp_free(struct bfa_s *bfa, struct list_head *comp_q)
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{
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struct list_head *qe;
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struct bfa_cb_qe_s *hcb_qe;
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while (!list_empty(comp_q)) {
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bfa_q_deq(comp_q, &qe);
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hcb_qe = (struct bfa_cb_qe_s *) qe;
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hcb_qe->cbfn(hcb_qe->cbarg, BFA_FALSE);
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}
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}
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void
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bfa_attach_fcs(struct bfa_s *bfa)
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{
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bfa->fcs = BFA_TRUE;
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}
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/**
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* Periodic timer heart beat from driver
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*/
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void
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bfa_timer_tick(struct bfa_s *bfa)
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{
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bfa_timer_beat(&bfa->timer_mod);
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}
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#ifndef BFA_BIOS_BUILD
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/**
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* Return the list of PCI vendor/device id lists supported by this
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* BFA instance.
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*/
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void
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bfa_get_pciids(struct bfa_pciid_s **pciids, int *npciids)
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{
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static struct bfa_pciid_s __pciids[] = {
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{BFA_PCI_VENDOR_ID_BROCADE, BFA_PCI_DEVICE_ID_FC_8G2P},
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{BFA_PCI_VENDOR_ID_BROCADE, BFA_PCI_DEVICE_ID_FC_8G1P},
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{BFA_PCI_VENDOR_ID_BROCADE, BFA_PCI_DEVICE_ID_CT},
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{BFA_PCI_VENDOR_ID_BROCADE, BFA_PCI_DEVICE_ID_CT_FC},
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};
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*npciids = ARRAY_SIZE(__pciids);
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*pciids = __pciids;
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}
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/**
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* Use this function query the default struct bfa_iocfc_cfg_s value (compiled
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* into BFA layer). The OS driver can then turn back and overwrite entries that
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* have been configured by the user.
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*
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* @param[in] cfg - pointer to bfa_ioc_cfg_t
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*
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* @return
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* void
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*
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* Special Considerations:
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* note
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*/
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void
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bfa_cfg_get_default(struct bfa_iocfc_cfg_s *cfg)
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{
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cfg->fwcfg.num_fabrics = DEF_CFG_NUM_FABRICS;
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cfg->fwcfg.num_lports = DEF_CFG_NUM_LPORTS;
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cfg->fwcfg.num_rports = DEF_CFG_NUM_RPORTS;
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cfg->fwcfg.num_ioim_reqs = DEF_CFG_NUM_IOIM_REQS;
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cfg->fwcfg.num_tskim_reqs = DEF_CFG_NUM_TSKIM_REQS;
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cfg->fwcfg.num_fcxp_reqs = DEF_CFG_NUM_FCXP_REQS;
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cfg->fwcfg.num_uf_bufs = DEF_CFG_NUM_UF_BUFS;
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cfg->fwcfg.num_cqs = DEF_CFG_NUM_CQS;
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cfg->drvcfg.num_reqq_elems = DEF_CFG_NUM_REQQ_ELEMS;
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cfg->drvcfg.num_rspq_elems = DEF_CFG_NUM_RSPQ_ELEMS;
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cfg->drvcfg.num_sgpgs = DEF_CFG_NUM_SGPGS;
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cfg->drvcfg.num_sboot_tgts = DEF_CFG_NUM_SBOOT_TGTS;
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cfg->drvcfg.num_sboot_luns = DEF_CFG_NUM_SBOOT_LUNS;
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cfg->drvcfg.path_tov = BFA_FCPIM_PATHTOV_DEF;
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cfg->drvcfg.ioc_recover = BFA_FALSE;
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cfg->drvcfg.delay_comp = BFA_FALSE;
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}
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void
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bfa_cfg_get_min(struct bfa_iocfc_cfg_s *cfg)
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{
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bfa_cfg_get_default(cfg);
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cfg->fwcfg.num_ioim_reqs = BFA_IOIM_MIN;
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cfg->fwcfg.num_tskim_reqs = BFA_TSKIM_MIN;
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cfg->fwcfg.num_fcxp_reqs = BFA_FCXP_MIN;
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cfg->fwcfg.num_uf_bufs = BFA_UF_MIN;
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cfg->fwcfg.num_rports = BFA_RPORT_MIN;
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cfg->drvcfg.num_sgpgs = BFA_SGPG_MIN;
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cfg->drvcfg.num_reqq_elems = BFA_REQQ_NELEMS_MIN;
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cfg->drvcfg.num_rspq_elems = BFA_RSPQ_NELEMS_MIN;
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cfg->drvcfg.min_cfg = BFA_TRUE;
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}
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void
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bfa_get_attr(struct bfa_s *bfa, struct bfa_ioc_attr_s *ioc_attr)
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{
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bfa_ioc_get_attr(&bfa->ioc, ioc_attr);
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}
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/**
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* Retrieve firmware trace information on IOC failure.
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*/
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bfa_status_t
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bfa_debug_fwsave(struct bfa_s *bfa, void *trcdata, int *trclen)
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{
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return bfa_ioc_debug_fwsave(&bfa->ioc, trcdata, trclen);
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}
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/**
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* Clear the saved firmware trace information of an IOC.
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*/
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void
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bfa_debug_fwsave_clear(struct bfa_s *bfa)
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{
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bfa_ioc_debug_fwsave_clear(&bfa->ioc);
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}
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/**
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* Fetch firmware trace data.
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*
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* @param[in] bfa BFA instance
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* @param[out] trcdata Firmware trace buffer
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* @param[in,out] trclen Firmware trace buffer len
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*
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* @retval BFA_STATUS_OK Firmware trace is fetched.
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* @retval BFA_STATUS_INPROGRESS Firmware trace fetch is in progress.
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*/
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bfa_status_t
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bfa_debug_fwtrc(struct bfa_s *bfa, void *trcdata, int *trclen)
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{
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return bfa_ioc_debug_fwtrc(&bfa->ioc, trcdata, trclen);
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}
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/**
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* Reset hw semaphore & usage cnt regs and initialize.
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*/
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void
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bfa_chip_reset(struct bfa_s *bfa)
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{
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bfa_ioc_ownership_reset(&bfa->ioc);
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bfa_ioc_pll_init(&bfa->ioc);
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}
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#endif
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