diff options
Diffstat (limited to 'drivers/scsi/bfa/bfad.c')
| -rw-r--r-- | drivers/scsi/bfa/bfad.c | 1182 |
1 files changed, 1182 insertions, 0 deletions
diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c new file mode 100644 index 0000000..6f2be5a --- /dev/null +++ b/drivers/scsi/bfa/bfad.c @@ -0,0 +1,1182 @@ +/* + * 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. + */ + +/** + * bfad.c Linux driver PCI interface module. + */ + +#include <linux/module.h> +#include "bfad_drv.h" +#include "bfad_im.h" +#include "bfad_tm.h" +#include "bfad_ipfc.h" +#include "bfad_trcmod.h" +#include <fcb/bfa_fcb_vf.h> +#include <fcb/bfa_fcb_rport.h> +#include <fcb/bfa_fcb_port.h> +#include <fcb/bfa_fcb.h> + +BFA_TRC_FILE(LDRV, BFAD); +static DEFINE_MUTEX(bfad_mutex); +LIST_HEAD(bfad_list); +static int bfad_inst; +int bfad_supported_fc4s; + +static char *host_name; +static char *os_name; +static char *os_patch; +static int num_rports; +static int num_ios; +static int num_tms; +static int num_fcxps; +static int num_ufbufs; +static int reqq_size; +static int rspq_size; +static int num_sgpgs; +static int rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT; +static int bfa_io_max_sge = BFAD_IO_MAX_SGE; +static int log_level = BFA_LOG_WARNING; +static int ioc_auto_recover = BFA_TRUE; +static int ipfc_enable = BFA_FALSE; +static int ipfc_mtu = -1; +int bfa_lun_queue_depth = BFAD_LUN_QUEUE_DEPTH; +int bfa_linkup_delay = -1; + +module_param(os_name, charp, S_IRUGO | S_IWUSR); +module_param(os_patch, charp, S_IRUGO | S_IWUSR); +module_param(host_name, charp, S_IRUGO | S_IWUSR); +module_param(num_rports, int, S_IRUGO | S_IWUSR); +module_param(num_ios, int, S_IRUGO | S_IWUSR); +module_param(num_tms, int, S_IRUGO | S_IWUSR); +module_param(num_fcxps, int, S_IRUGO | S_IWUSR); +module_param(num_ufbufs, int, S_IRUGO | S_IWUSR); +module_param(reqq_size, int, S_IRUGO | S_IWUSR); +module_param(rspq_size, int, S_IRUGO | S_IWUSR); +module_param(num_sgpgs, int, S_IRUGO | S_IWUSR); +module_param(rport_del_timeout, int, S_IRUGO | S_IWUSR); +module_param(bfa_lun_queue_depth, int, S_IRUGO | S_IWUSR); +module_param(bfa_io_max_sge, int, S_IRUGO | S_IWUSR); +module_param(log_level, int, S_IRUGO | S_IWUSR); +module_param(ioc_auto_recover, int, S_IRUGO | S_IWUSR); +module_param(ipfc_enable, int, S_IRUGO | S_IWUSR); +module_param(ipfc_mtu, int, S_IRUGO | S_IWUSR); +module_param(bfa_linkup_delay, int, S_IRUGO | S_IWUSR); + +/* + * Stores the module parm num_sgpgs value; + * used to reset for bfad next instance. + */ +static int num_sgpgs_parm; + +static bfa_status_t +bfad_fc4_probe(struct bfad_s *bfad) +{ + int rc; + + rc = bfad_im_probe(bfad); + if (rc != BFA_STATUS_OK) + goto ext; + + bfad_tm_probe(bfad); + + if (ipfc_enable) + bfad_ipfc_probe(bfad); +ext: + return rc; +} + +static void +bfad_fc4_probe_undo(struct bfad_s *bfad) +{ + bfad_im_probe_undo(bfad); + bfad_tm_probe_undo(bfad); + if (ipfc_enable) + bfad_ipfc_probe_undo(bfad); +} + +static void +bfad_fc4_probe_post(struct bfad_s *bfad) +{ + if (bfad->im) + bfad_im_probe_post(bfad->im); + + bfad_tm_probe_post(bfad); + if (ipfc_enable) + bfad_ipfc_probe_post(bfad); +} + +static bfa_status_t +bfad_fc4_port_new(struct bfad_s *bfad, struct bfad_port_s *port, int roles) +{ + int rc = BFA_STATUS_FAILED; + + if (roles & BFA_PORT_ROLE_FCP_IM) + rc = bfad_im_port_new(bfad, port); + if (rc != BFA_STATUS_OK) + goto ext; + + if (roles & BFA_PORT_ROLE_FCP_TM) + rc = bfad_tm_port_new(bfad, port); + if (rc != BFA_STATUS_OK) + goto ext; + + if ((roles & BFA_PORT_ROLE_FCP_IPFC) && ipfc_enable) + rc = bfad_ipfc_port_new(bfad, port, port->pvb_type); +ext: + return rc; +} + +static void +bfad_fc4_port_delete(struct bfad_s *bfad, struct bfad_port_s *port, int roles) +{ + if (roles & BFA_PORT_ROLE_FCP_IM) + bfad_im_port_delete(bfad, port); + + if (roles & BFA_PORT_ROLE_FCP_TM) + bfad_tm_port_delete(bfad, port); + + if ((roles & BFA_PORT_ROLE_FCP_IPFC) && ipfc_enable) + bfad_ipfc_port_delete(bfad, port); +} + +/** + * BFA callbacks + */ +void +bfad_hcb_comp(void *arg, bfa_status_t status) +{ + struct bfad_hal_comp *fcomp = (struct bfad_hal_comp *)arg; + + fcomp->status = status; + complete(&fcomp->comp); +} + +/** + * bfa_init callback + */ +void +bfa_cb_init(void *drv, bfa_status_t init_status) +{ + struct bfad_s *bfad = drv; + + if (init_status == BFA_STATUS_OK) + bfad->bfad_flags |= BFAD_HAL_INIT_DONE; + + complete(&bfad->comp); +} + + + +/** + * BFA_FCS callbacks + */ +static struct bfad_port_s * +bfad_get_drv_port(struct bfad_s *bfad, struct bfad_vf_s *vf_drv, + struct bfad_vport_s *vp_drv) +{ + return ((vp_drv) ? (&(vp_drv)->drv_port) + : ((vf_drv) ? (&(vf_drv)->base_port) : (&(bfad)->pport))); +} + +struct bfad_port_s * +bfa_fcb_port_new(struct bfad_s *bfad, struct bfa_fcs_port_s *port, + enum bfa_port_role roles, struct bfad_vf_s *vf_drv, + struct bfad_vport_s *vp_drv) +{ + bfa_status_t rc; + struct bfad_port_s *port_drv; + + if (!vp_drv && !vf_drv) { + port_drv = &bfad->pport; + port_drv->pvb_type = BFAD_PORT_PHYS_BASE; + } else if (!vp_drv && vf_drv) { + port_drv = &vf_drv->base_port; + port_drv->pvb_type = BFAD_PORT_VF_BASE; + } else if (vp_drv && !vf_drv) { + port_drv = &vp_drv->drv_port; + port_drv->pvb_type = BFAD_PORT_PHYS_VPORT; + } else { + port_drv = &vp_drv->drv_port; + port_drv->pvb_type = BFAD_PORT_VF_VPORT; + } + + port_drv->fcs_port = port; + port_drv->roles = roles; + rc = bfad_fc4_port_new(bfad, port_drv, roles); + if (rc != BFA_STATUS_OK) { + bfad_fc4_port_delete(bfad, port_drv, roles); + port_drv = NULL; + } + + return port_drv; +} + +void +bfa_fcb_port_delete(struct bfad_s *bfad, enum bfa_port_role roles, + struct bfad_vf_s *vf_drv, struct bfad_vport_s *vp_drv) +{ + struct bfad_port_s *port_drv; + + /* + * this will be only called from rmmod context + */ + if (vp_drv && !vp_drv->comp_del) { + port_drv = bfad_get_drv_port(bfad, vf_drv, vp_drv); + bfa_trc(bfad, roles); + bfad_fc4_port_delete(bfad, port_drv, roles); + } +} + +void +bfa_fcb_port_online(struct bfad_s *bfad, enum bfa_port_role roles, + struct bfad_vf_s *vf_drv, struct bfad_vport_s *vp_drv) +{ + struct bfad_port_s *port_drv = bfad_get_drv_port(bfad, vf_drv, vp_drv); + + if (roles & BFA_PORT_ROLE_FCP_IM) + bfad_im_port_online(bfad, port_drv); + + if (roles & BFA_PORT_ROLE_FCP_TM) + bfad_tm_port_online(bfad, port_drv); + + if ((roles & BFA_PORT_ROLE_FCP_IPFC) && ipfc_enable) + bfad_ipfc_port_online(bfad, port_drv); + + bfad->bfad_flags |= BFAD_PORT_ONLINE; +} + +void +bfa_fcb_port_offline(struct bfad_s *bfad, enum bfa_port_role roles, + struct bfad_vf_s *vf_drv, struct bfad_vport_s *vp_drv) +{ + struct bfad_port_s *port_drv = bfad_get_drv_port(bfad, vf_drv, vp_drv); + + if (roles & BFA_PORT_ROLE_FCP_IM) + bfad_im_port_offline(bfad, port_drv); + + if (roles & BFA_PORT_ROLE_FCP_TM) + bfad_tm_port_offline(bfad, port_drv); + + if ((roles & BFA_PORT_ROLE_FCP_IPFC) && ipfc_enable) + bfad_ipfc_port_offline(bfad, port_drv); +} + +void +bfa_fcb_vport_delete(struct bfad_vport_s *vport_drv) +{ + if (vport_drv->comp_del) { + complete(vport_drv->comp_del); + return; + } + + kfree(vport_drv); +} + +/** + * FCS RPORT alloc callback, after successful PLOGI by FCS + */ +bfa_status_t +bfa_fcb_rport_alloc(struct bfad_s *bfad, struct bfa_fcs_rport_s **rport, + struct bfad_rport_s **rport_drv) +{ + bfa_status_t rc = BFA_STATUS_OK; + + *rport_drv = kzalloc(sizeof(struct bfad_rport_s), GFP_ATOMIC); + if (*rport_drv == NULL) { + rc = BFA_STATUS_ENOMEM; + goto ext; + } + + *rport = &(*rport_drv)->fcs_rport; + +ext: + return rc; +} + + + +void +bfad_hal_mem_release(struct bfad_s *bfad) +{ + int i; + struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo; + struct bfa_mem_elem_s *meminfo_elem; + + for (i = 0; i < BFA_MEM_TYPE_MAX; i++) { + meminfo_elem = &hal_meminfo->meminfo[i]; + if (meminfo_elem->kva != NULL) { + switch (meminfo_elem->mem_type) { + case BFA_MEM_TYPE_KVA: + vfree(meminfo_elem->kva); + break; + case BFA_MEM_TYPE_DMA: + dma_free_coherent(&bfad->pcidev->dev, + meminfo_elem->mem_len, + meminfo_elem->kva, + (dma_addr_t) meminfo_elem->dma); + break; + default: + bfa_assert(0); + break; + } + } + } + + memset(hal_meminfo, 0, sizeof(struct bfa_meminfo_s)); +} + +void +bfad_update_hal_cfg(struct bfa_iocfc_cfg_s *bfa_cfg) +{ + if (num_rports > 0) + bfa_cfg->fwcfg.num_rports = num_rports; + if (num_ios > 0) + bfa_cfg->fwcfg.num_ioim_reqs = num_ios; + if (num_tms > 0) + bfa_cfg->fwcfg.num_tskim_reqs = num_tms; + if (num_fcxps > 0) + bfa_cfg->fwcfg.num_fcxp_reqs = num_fcxps; + if (num_ufbufs > 0) + bfa_cfg->fwcfg.num_uf_bufs = num_ufbufs; + if (reqq_size > 0) + bfa_cfg->drvcfg.num_reqq_elems = reqq_size; + if (rspq_size > 0) + bfa_cfg->drvcfg.num_rspq_elems = rspq_size; + if (num_sgpgs > 0) + bfa_cfg->drvcfg.num_sgpgs = num_sgpgs; + + /* + * populate the hal values back to the driver for sysfs use. + * otherwise, the default values will be shown as 0 in sysfs + */ + num_rports = bfa_cfg->fwcfg.num_rports; + num_ios = bfa_cfg->fwcfg.num_ioim_reqs; + num_tms = bfa_cfg->fwcfg.num_tskim_reqs; + num_fcxps = bfa_cfg->fwcfg.num_fcxp_reqs; + num_ufbufs = bfa_cfg->fwcfg.num_uf_bufs; + reqq_size = bfa_cfg->drvcfg.num_reqq_elems; + rspq_size = bfa_cfg->drvcfg.num_rspq_elems; + num_sgpgs = bfa_cfg->drvcfg.num_sgpgs; +} + +bfa_status_t +bfad_hal_mem_alloc(struct bfad_s *bfad) +{ + struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo; + struct bfa_mem_elem_s *meminfo_elem; + bfa_status_t rc = BFA_STATUS_OK; + dma_addr_t phys_addr; + int retry_count = 0; + int reset_value = 1; + int min_num_sgpgs = 512; + void *kva; + int i; + + bfa_cfg_get_default(&bfad->ioc_cfg); + +retry: + bfad_update_hal_cfg(&bfad->ioc_cfg); + bfad->cfg_data.ioc_queue_depth = bfad->ioc_cfg.fwcfg.num_ioim_reqs; + bfa_cfg_get_meminfo(&bfad->ioc_cfg, hal_meminfo); + + for (i = 0; i < BFA_MEM_TYPE_MAX; i++) { + meminfo_elem = &hal_meminfo->meminfo[i]; + switch (meminfo_elem->mem_type) { + case BFA_MEM_TYPE_KVA: + kva = vmalloc(meminfo_elem->mem_len); + if (kva == NULL) { + bfad_hal_mem_release(bfad); + rc = BFA_STATUS_ENOMEM; + goto ext; + } + memset(kva, 0, meminfo_elem->mem_len); + meminfo_elem->kva = kva; + break; + case BFA_MEM_TYPE_DMA: + kva = dma_alloc_coherent(&bfad->pcidev->dev, + meminfo_elem->mem_len, + &phys_addr, GFP_KERNEL); + if (kva == NULL) { + bfad_hal_mem_release(bfad); + /* + * If we cannot allocate with default + * num_sgpages try with half the value. + */ + if (num_sgpgs > min_num_sgpgs) { + printk(KERN_INFO "bfad[%d]: memory" + " allocation failed with" + " num_sgpgs: %d\n", + bfad->inst_no, num_sgpgs); + nextLowerInt(&num_sgpgs); + printk(KERN_INFO "bfad[%d]: trying to" + " allocate memory with" + " num_sgpgs: %d\n", + bfad->inst_no, num_sgpgs); + retry_count++; + goto retry; + } else { + if (num_sgpgs_parm > 0) + num_sgpgs = num_sgpgs_parm; + else { + reset_value = + (1 << retry_count); + num_sgpgs *= reset_value; + } + rc = BFA_STATUS_ENOMEM; + goto ext; + } + } + + if (num_sgpgs_parm > 0) + num_sgpgs = num_sgpgs_parm; + else { + reset_value = (1 << retry_count); + num_sgpgs *= reset_value; + } + + memset(kva, 0, meminfo_elem->mem_len); + meminfo_elem->kva = kva; + meminfo_elem->dma = phys_addr; + break; + default: + break; + + } + } +ext: + return rc; +} + +/** + * Create a vport under a vf. + */ +bfa_status_t +bfad_vport_create(struct bfad_s *bfad, u16 vf_id, + struct bfa_port_cfg_s *port_cfg) +{ + struct bfad_vport_s *vport; + int rc = BFA_STATUS_OK; + unsigned long flags; + struct completion fcomp; + + vport = kzalloc(sizeof(struct bfad_vport_s), GFP_KERNEL); + if (!vport) { + rc = BFA_STATUS_ENOMEM; + goto ext; + } + + vport->drv_port.bfad = bfad; + spin_lock_irqsave(&bfad->bfad_lock, flags); + rc = bfa_fcs_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, vf_id, + port_cfg, vport); + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + + if (rc != BFA_STATUS_OK) + goto ext_free_vport; + + if (port_cfg->roles & BFA_PORT_ROLE_FCP_IM) { + rc = bfad_im_scsi_host_alloc(bfad, vport->drv_port.im_port); + if (rc != BFA_STATUS_OK) + goto ext_free_fcs_vport; + } + + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfa_fcs_vport_start(&vport->fcs_vport); + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + + return BFA_STATUS_OK; + +ext_free_fcs_vport: + spin_lock_irqsave(&bfad->bfad_lock, flags); + vport->comp_del = &fcomp; + init_completion(vport->comp_del); + bfa_fcs_vport_delete(&vport->fcs_vport); + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + wait_for_completion(vport->comp_del); +ext_free_vport: + kfree(vport); +ext: + return rc; +} + +/** + * Create a vf and its base vport implicitely. + */ +bfa_status_t +bfad_vf_create(struct bfad_s *bfad, u16 vf_id, + struct bfa_port_cfg_s *port_cfg) +{ + struct bfad_vf_s *vf; + int rc = BFA_STATUS_OK; + + vf = kzalloc(sizeof(struct bfad_vf_s), GFP_KERNEL); + if (!vf) { + rc = BFA_STATUS_FAILED; + goto ext; + } + + rc = bfa_fcs_vf_create(&vf->fcs_vf, &bfad->bfa_fcs, vf_id, port_cfg, + vf); + if (rc != BFA_STATUS_OK) + kfree(vf); +ext: + return rc; +} + +void +bfad_bfa_tmo(unsigned long data) +{ + struct bfad_s *bfad = (struct bfad_s *)data; + unsigned long flags; + struct list_head doneq; + + spin_lock_irqsave(&bfad->bfad_lock, flags); + + bfa_timer_tick(&bfad->bfa); + + bfa_comp_deq(&bfad->bfa, &doneq); + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + + if (!list_empty(&doneq)) { + bfa_comp_process(&bfad->bfa, &doneq); + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfa_comp_free(&bfad->bfa, &doneq); + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + } + + mod_timer(&bfad->hal_tmo, jiffies + msecs_to_jiffies(BFA_TIMER_FREQ)); +} + +void +bfad_init_timer(struct bfad_s *bfad) +{ + init_timer(&bfad->hal_tmo); + bfad->hal_tmo.function = bfad_bfa_tmo; + bfad->hal_tmo.data = (unsigned long)bfad; + + mod_timer(&bfad->hal_tmo, jiffies + msecs_to_jiffies(BFA_TIMER_FREQ)); +} + +int +bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad) +{ + unsigned long bar0_len; + int rc = -ENODEV; + + if (pci_enable_device(pdev)) { + BFA_PRINTF(BFA_ERR, "pci_enable_device fail %p\n", pdev); + goto out; + } + + if (pci_request_regions(pdev, BFAD_DRIVER_NAME)) + goto out_disable_device; + + pci_set_master(pdev); + + + if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) + if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) { + BFA_PRINTF(BFA_ERR, "pci_set_dma_mask fail %p\n", pdev); + goto out_release_region; + } + + bfad->pci_bar0_map = pci_resource_start(pdev, 0); + bar0_len = pci_resource_len(pdev, 0); + bfad->pci_bar0_kva = ioremap(bfad->pci_bar0_map, bar0_len); + + if (bfad->pci_bar0_kva == NULL) { + BFA_PRINTF(BFA_ERR, "Fail to map bar0\n"); + goto out_release_region; + } + + bfad->hal_pcidev.pci_slot = PCI_SLOT(pdev->devfn); + bfad->hal_pcidev.pci_func = PCI_FUNC(pdev->devfn); + bfad->hal_pcidev.pci_bar_kva = bfad->pci_bar0_kva; + bfad->hal_pcidev.device_id = pdev->device; + bfad->pci_name = pci_name(pdev); + + bfad->pci_attr.vendor_id = pdev->vendor; + bfad->pci_attr.device_id = pdev->device; + bfad->pci_attr.ssid = pdev->subsystem_device; + bfad->pci_attr.ssvid = pdev->subsystem_vendor; + bfad->pci_attr.pcifn = PCI_FUNC(pdev->devfn); + + bfad->pcidev = pdev; + return 0; + +out_release_region: + pci_release_regions(pdev); +out_disable_device: + pci_disable_device(pdev); +out: + return rc; +} + +void +bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad) +{ +#if defined(__ia64__) + pci_iounmap(pdev, bfad->pci_bar0_kva); +#else + iounmap(bfad->pci_bar0_kva); +#endif + pci_release_regions(pdev); + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); +} + +void +bfad_fcs_port_cfg(struct bfad_s *bfad) +{ + struct bfa_port_cfg_s port_cfg; + struct bfa_pport_attr_s attr; + char symname[BFA_SYMNAME_MAXLEN]; + + sprintf(symname, "%s-%d", BFAD_DRIVER_NAME, bfad->inst_no); + memcpy(port_cfg.sym_name.symname, symname, strlen(symname)); + bfa_pport_get_attr(&bfad->bfa, &attr); + port_cfg.nwwn = attr.nwwn; + port_cfg.pwwn = attr.pwwn; + + bfa_fcs_cfg_base_port(&bfad->bfa_fcs, &port_cfg); +} + +bfa_status_t +bfad_drv_init(struct bfad_s *bfad) +{ + bfa_status_t rc; + unsigned long flags; + struct bfa_fcs_driver_info_s driver_info; + int i; + + bfad->cfg_data.rport_del_timeout = rport_del_timeout; + bfad->cfg_data.lun_queue_depth = bfa_lun_queue_depth; + bfad->cfg_data.io_max_sge = bfa_io_max_sge; + bfad->cfg_data.binding_method = FCP_PWWN_BINDING; + + rc = bfad_hal_mem_alloc(bfad); + if (rc != BFA_STATUS_OK) { + printk(KERN_WARNING "bfad%d bfad_hal_mem_alloc failure\n", + bfad->inst_no); + printk(KERN_WARNING + "Not enough memory to attach all Brocade HBA ports," + " System may need more memory.\n"); + goto out_hal_mem_alloc_failure; + } + + bfa_init_log(&bfad->bfa, bfad->logmod); + bfa_init_trc(&bfad->bfa, bfad->trcmod); + bfa_init_aen(&bfad->bfa, bfad->aen); + INIT_LIST_HEAD(&bfad->file_q); + INIT_LIST_HEAD(&bfad->file_free_q); + for (i = 0; i < BFAD_AEN_MAX_APPS; i++) { + bfa_q_qe_init(&bfad->file_buf[i].qe); + list_add_tail(&bfad->file_buf[i].qe, &bfad->file_free_q); + } + bfa_init_plog(&bfad->bfa, &bfad->plog_buf); + bfa_plog_init(&bfad->plog_buf); + bfa_plog_str(&bfad->plog_buf, BFA_PL_MID_DRVR, BFA_PL_EID_DRIVER_START, + 0, "Driver Attach"); + + bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, &bfad->meminfo, + &bfad->hal_pcidev); + + init_completion(&bfad->comp); + + /* + * Enable Interrupt and wait bfa_init completion + */ + if (bfad_setup_intr(bfad)) { + printk(KERN_WARNING "bfad%d: bfad_setup_intr failed\n", + bfad->inst_no); + goto out_setup_intr_failure; + } + + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfa_init(&bfad->bfa); + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + + /* + * Set up interrupt handler for each vectors + */ + if ((bfad->bfad_flags & BFAD_MSIX_ON) + && bfad_install_msix_handler(bfad)) { + printk(KERN_WARNING "%s: install_msix failed, bfad%d\n", + __FUNCTION__, bfad->inst_no); + } + + bfad_init_timer(bfad); + + wait_for_completion(&bfad->comp); + + memset(&driver_info, 0, sizeof(driver_info)); + strncpy(driver_info.version, BFAD_DRIVER_VERSION, + sizeof(driver_info.version) - 1); + if (host_name) + strncpy(driver_info.host_machine_name, host_name, + sizeof(driver_info.host_machine_name) - 1); + if (os_name) + strncpy(driver_info.host_os_name, os_name, + sizeof(driver_info.host_os_name) - 1); + if (os_patch) + strncpy(driver_info.host_os_patch, os_patch, + sizeof(driver_info.host_os_patch) - 1); + + strncpy(driver_info.os_device_name, bfad->pci_name, + sizeof(driver_info.os_device_name - 1)); + + /* + * FCS INIT + */ + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfa_fcs_log_init(&bfad->bfa_fcs, bfad->logmod); + bfa_fcs_trc_init(&bfad->bfa_fcs, bfad->trcmod); + bfa_fcs_aen_init(&bfad->bfa_fcs, bfad->aen); + bfa_fcs_init(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE); + bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info); + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + + bfad->bfad_flags |= BFAD_DRV_INIT_DONE; + return BFA_STATUS_OK; + +out_setup_intr_failure: + bfa_detach(&bfad->bfa); + bfad_hal_mem_release(bfad); +out_hal_mem_alloc_failure: + return BFA_STATUS_FAILED; +} + +void +bfad_drv_uninit(struct bfad_s *bfad) +{ + del_timer_sync(&bfad->hal_tmo); + bfa_isr_disable(&bfad->bfa); + bfa_detach(&bfad->bfa); + bfad_remove_intr(bfad); + bfa_assert(list_empty(&bfad->file_q)); + bfad_hal_mem_release(bfad); +} + +void +bfad_drv_start(struct bfad_s *bfad) +{ + unsigned long flags; + + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfa_start(&bfad->bfa); + bfa_fcs_start(&bfad->bfa_fcs); + bfad->bfad_flags |= BFAD_HAL_START_DONE; + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + + bfad_fc4_probe_post(bfad); +} + +void +bfad_drv_stop(struct bfad_s *bfad) +{ + unsigned long flags; + + spin_lock_irqsave(&bfad->bfad_lock, flags); + init_completion(&bfad->comp); + bfad->pport.flags |= BFAD_PORT_DELETE; + bfa_fcs_exit(&bfad->bfa_fcs); + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + wait_for_completion(&bfad->comp); + + spin_lock_irqsave(&bfad->bfad_lock, flags); + init_completion(&bfad->comp); + bfa_stop(&bfad->bfa); + bfad->bfad_flags &= ~BFAD_HAL_START_DONE; + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + wait_for_completion(&bfad->comp); +} + +bfa_status_t +bfad_cfg_pport(struct bfad_s *bfad, enum bfa_port_role role) +{ + int rc = BFA_STATUS_OK; + + /* + * Allocate scsi_host for the physical port + */ + if ((bfad_supported_fc4s & BFA_PORT_ROLE_FCP_IM) + && (role & BFA_PORT_ROLE_FCP_IM)) { + if (bfad->pport.im_port == NULL) { + rc = BFA_STATUS_FAILED; + goto out; + } + + rc = bfad_im_scsi_host_alloc(bfad, bfad->pport.im_port); + if (rc != BFA_STATUS_OK) + goto out; + + bfad->pport.roles |= BFA_PORT_ROLE_FCP_IM; + } + + bfad->bfad_flags |= BFAD_CFG_PPORT_DONE; + +out: + return rc; +} + +void +bfad_uncfg_pport(struct bfad_s *bfad) +{ + if ((bfad->pport.roles & BFA_PORT_ROLE_FCP_IPFC) && ipfc_enable) { + bfad_ipfc_port_delete(bfad, &bfad->pport); + bfad->pport.roles &= ~BFA_PORT_ROLE_FCP_IPFC; + } + + if ((bfad_supported_fc4s & BFA_PORT_ROLE_FCP_IM) + && (bfad->pport.roles & BFA_PORT_ROLE_FCP_IM)) { + bfad_im_scsi_host_free(bfad, bfad->pport.im_port); + bfad_im_port_clean(bfad->pport.im_port); + kfree(bfad->pport.im_port); + bfad->pport.roles &= ~BFA_PORT_ROLE_FCP_IM; + } + + bfad->bfad_flags &= ~BFAD_CFG_PPORT_DONE; +} + +void +bfad_drv_log_level_set(struct bfad_s *bfad) +{ + if (log_level > BFA_LOG_INVALID && log_level <= BFA_LOG_LEVEL_MAX) + bfa_log_set_level_all(&bfad->log_data, log_level); +} + + /* + * PCI_entry PCI driver entries * { + */ + +/** + * PCI probe entry. + */ +int +bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid) +{ + struct bfad_s *bfad; + int error = -ENODEV, retval; + char buf[16]; + + /* + * For single port cards - only claim function 0 + */ + if ((pdev->device == BFA_PCI_DEVICE_ID_FC_8G1P) + && (PCI_FUNC(pdev->devfn) != 0)) + return -ENODEV; + + BFA_TRACE(BFA_INFO, "bfad_pci_probe entry"); + + bfad = kzalloc(sizeof(struct bfad_s), GFP_KERNEL); + if (!bfad) { + error = -ENOMEM; + goto out; + } + + bfad->trcmod = kzalloc(sizeof(struct bfa_trc_mod_s), GFP_KERNEL); + if (!bfad->trcmod) { + printk(KERN_WARNING "Error alloc trace buffer!\n"); + error = -ENOMEM; + goto out_alloc_trace_failure; + } + + /* + * LOG/TRACE INIT + */ + bfa_trc_init(bfad->trcmod); + bfa_trc(bfad, bfad_inst); + + bfad->logmod = &bfad->log_data; + sprintf(buf, "%d", bfad_inst); + bfa_log_init(bfad->logmod, buf, bfa_os_printf); + + bfad_drv_log_level_set(bfad); + + bfad->aen = &bfad->aen_buf; + + if (!(bfad_load_fwimg(pdev))) { + printk(KERN_WARNING "bfad_load_fwimg failure!\n"); + kfree(bfad->trcmod); + goto out_alloc_trace_failure; + } + + retval = bfad_pci_init(pdev, bfad); + if (retval) { + printk(KERN_WARNING "bfad_pci_init failure!\n"); + error = retval; + goto out_pci_init_failure; + } + + mutex_lock(&bfad_mutex); + bfad->inst_no = bfad_inst++; + list_add_tail(&bfad->list_entry, &bfad_list); + mutex_unlock(&bfad_mutex); + + spin_lock_init(&bfad->bfad_lock); + pci_set_drvdata(pdev, bfad); + + bfad->ref_count = 0; + bfad->pport.bfad = bfad; + + retval = bfad_drv_init(bfad); + if (retval != BFA_STATUS_OK) + goto out_drv_init_failure; + if (!(bfad->bfad_flags & BFAD_HAL_INIT_DONE)) { + printk(KERN_WARNING "bfad%d: hal init failed\n", bfad->inst_no); + goto ok; + } + + /* + * PPORT FCS config + */ + bfad_fcs_port_cfg(bfad); + + retval = bfad_cfg_pport(bfad, BFA_PORT_ROLE_FCP_IM); + if (retval != BFA_STATUS_OK) + goto out_cfg_pport_failure; + + /* + * BFAD level FC4 (IM/TM/IPFC) specific resource allocation + */ + retval = bfad_fc4_probe(bfad); + if (retval != BFA_STATUS_OK) { + printk(KERN_WARNING "bfad_fc4_probe failed\n"); + goto out_fc4_probe_failure; + } + + bfad_drv_start(bfad); + + /* + * If bfa_linkup_delay is set to -1 default; try to retrive the + * value using the bfad_os_get_linkup_delay(); else use the + * passed in module param value as the bfa_linkup_delay. + */ + if (bfa_linkup_delay < 0) { + bfa_linkup_delay = bfad_os_get_linkup_delay(bfad); + bfad_os_rport_online_wait(bfad); + bfa_linkup_delay = -1; + } else { + bfad_os_rport_online_wait(bfad); + } + + bfa_log(bfad->logmod, BFA_LOG_LINUX_DEVICE_CLAIMED, bfad->pci_name); +ok: + return 0; + +out_fc4_probe_failure: + bfad_fc4_probe_undo(bfad); + bfad_uncfg_pport(bfad); +out_cfg_pport_failure: + bfad_drv_uninit(bfad); +out_drv_init_failure: + mutex_lock(&bfad_mutex); + bfad_inst--; + list_del(&bfad->list_entry); + mutex_unlock(&bfad_mutex); + bfad_pci_uninit(pdev, bfad); +out_pci_init_failure: + kfree(bfad->trcmod); +out_alloc_trace_failure: + kfree(bfad); +out: + return error; +} + +/** + * PCI remove entry. + */ +void +bfad_pci_remove(struct pci_dev *pdev) +{ + struct bfad_s *bfad = pci_get_drvdata(pdev); + unsigned long flags; + + bfa_trc(bfad, bfad->inst_no); + + if ((bfad->bfad_flags & BFAD_DRV_INIT_DONE) + && !(bfad->bfad_flags & BFAD_HAL_INIT_DONE)) { + + spin_lock_irqsave(&bfad->bfad_lock, flags); + init_completion(&bfad->comp); + bfa_stop(&bfad->bfa); + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + wait_for_completion(&bfad->comp); + + bfad_remove_intr(bfad); + del_timer_sync(&bfad->hal_tmo); + goto hal_detach; + } else if (!(bfad->bfad_flags & BFAD_DRV_INIT_DONE)) { + goto remove_sysfs; + } + + if (bfad->bfad_flags & BFAD_HAL_START_DONE) + bfad_drv_stop(bfad); + + bfad_remove_intr(bfad); + + del_timer_sync(&bfad->hal_tmo); + bfad_fc4_probe_undo(bfad); + + if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE) + bfad_uncfg_pport(bfad); + +hal_detach: + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfa_detach(&bfad->bfa); + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + bfad_hal_mem_release(bfad); +remove_sysfs: + + mutex_lock(&bfad_mutex); + bfad_inst--; + list_del(&bfad->list_entry); + mutex_unlock(&bfad_mutex); + bfad_pci_uninit(pdev, bfad); + + kfree(bfad->trcmod); + kfree(bfad); +} + + +static struct pci_device_id bfad_id_table[] = { + { + .vendor = BFA_PCI_VENDOR_ID_BROCADE, + .device = BFA_PCI_DEVICE_ID_FC_8G2P, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + }, + { + .vendor = BFA_PCI_VENDOR_ID_BROCADE, + .device = BFA_PCI_DEVICE_ID_FC_8G1P, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + }, + { + .vendor = BFA_PCI_VENDOR_ID_BROCADE, + .device = BFA_PCI_DEVICE_ID_CT, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .class = (PCI_CLASS_SERIAL_FIBER << 8), + .class_mask = ~0, + }, + + {0, 0}, +}; + +MODULE_DEVICE_TABLE(pci, bfad_id_table); + +static struct pci_driver bfad_pci_driver = { + .name = BFAD_DRIVER_NAME, + .id_table = bfad_id_table, + .probe = bfad_pci_probe, + .remove = __devexit_p(bfad_pci_remove), +}; + +/** + * Linux driver module functions + */ +bfa_status_t +bfad_fc4_module_init(void) +{ + int rc; + + rc = bfad_im_module_init(); + if (rc != BFA_STATUS_OK) + goto ext; + + bfad_tm_module_init(); + if (ipfc_enable) + bfad_ipfc_module_init(); +ext: + return rc; +} + +void +bfad_fc4_module_exit(void) +{ + if (ipfc_enable) + bfad_ipfc_module_exit(); + bfad_tm_module_exit(); + bfad_im_module_exit(); +} + +/** + * Driver module init. + */ +static int __init +bfad_init(void) +{ + int error = 0; + + printk(KERN_INFO "Brocade BFA FC/FCOE SCSI driver - version: %s\n", + BFAD_DRIVER_VERSION); + + if (num_sgpgs > 0) + num_sgpgs_parm = num_sgpgs; + + error = bfad_fc4_module_init(); + if (error) { + error = -ENOMEM; + printk(KERN_WARNING "bfad_fc4_module_init failure\n"); + goto ext; + } + + if (!strcmp(FCPI_NAME, " fcpim")) + bfad_supported_fc4s |= BFA_PORT_ROLE_FCP_IM; + if (!strcmp(FCPT_NAME, " fcptm")) + bfad_supported_fc4s |= BFA_PORT_ROLE_FCP_TM; + if (!strcmp(IPFC_NAME, " ipfc")) + bfad_supported_fc4s |= BFA_PORT_ROLE_FCP_IPFC; + + bfa_ioc_auto_recover(ioc_auto_recover); + bfa_fcs_rport_set_del_timeout(rport_del_timeout); + error = pci_register_driver(&bfad_pci_driver); + + if (error) { + printk(KERN_WARNING "bfad pci_register_driver failure\n"); + goto ext; + } + + return 0; + +ext: + bfad_fc4_module_exit(); + return error; +} + +/** + * Driver module exit. + */ +static void __exit +bfad_exit(void) +{ + pci_unregister_driver(&bfad_pci_driver); + bfad_fc4_module_exit(); + bfad_free_fwimg(); +} + +#define BFAD_PROTO_NAME FCPI_NAME FCPT_NAME IPFC_NAME + +module_init(bfad_init); +module_exit(bfad_exit); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Brocade Fibre Channel HBA Driver" BFAD_PROTO_NAME); +MODULE_AUTHOR("Brocade Communications Systems, Inc."); +MODULE_VERSION(BFAD_DRIVER_VERSION); + + |
