diff options
Diffstat (limited to 'kernel/drivers/scsi/bfa/bfad.c')
| -rw-r--r-- | kernel/drivers/scsi/bfa/bfad.c | 1822 |
1 files changed, 1822 insertions, 0 deletions
diff --git a/kernel/drivers/scsi/bfa/bfad.c b/kernel/drivers/scsi/bfa/bfad.c new file mode 100644 index 000000000..cc3b9d3d6 --- /dev/null +++ b/kernel/drivers/scsi/bfa/bfad.c @@ -0,0 +1,1822 @@ +/* + * 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. + */ + +/* + * bfad.c Linux driver PCI interface module. + */ +#include <linux/module.h> +#include <linux/kthread.h> +#include <linux/errno.h> +#include <linux/sched.h> +#include <linux/init.h> +#include <linux/fs.h> +#include <linux/pci.h> +#include <linux/firmware.h> +#include <asm/uaccess.h> +#include <asm/fcntl.h> + +#include "bfad_drv.h" +#include "bfad_im.h" +#include "bfa_fcs.h" +#include "bfa_defs.h" +#include "bfa.h" + +BFA_TRC_FILE(LDRV, BFAD); +DEFINE_MUTEX(bfad_mutex); +LIST_HEAD(bfad_list); + +static int bfad_inst; +static int num_sgpgs_parm; +int supported_fc4s; +char *host_name, *os_name, *os_patch; +int num_rports, num_ios, num_tms; +int num_fcxps, num_ufbufs; +int reqq_size, rspq_size, num_sgpgs; +int rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT; +int bfa_lun_queue_depth = BFAD_LUN_QUEUE_DEPTH; +int bfa_io_max_sge = BFAD_IO_MAX_SGE; +int bfa_log_level = 3; /* WARNING log level */ +int ioc_auto_recover = BFA_TRUE; +int bfa_linkup_delay = -1; +int fdmi_enable = BFA_TRUE; +int pcie_max_read_reqsz; +int bfa_debugfs_enable = 1; +int msix_disable_cb = 0, msix_disable_ct = 0; +int max_xfer_size = BFAD_MAX_SECTORS >> 1; +int max_rport_logins = BFA_FCS_MAX_RPORT_LOGINS; + +/* Firmware releated */ +u32 bfi_image_cb_size, bfi_image_ct_size, bfi_image_ct2_size; +u32 *bfi_image_cb, *bfi_image_ct, *bfi_image_ct2; + +#define BFAD_FW_FILE_CB "cbfw-3.2.3.0.bin" +#define BFAD_FW_FILE_CT "ctfw-3.2.3.0.bin" +#define BFAD_FW_FILE_CT2 "ct2fw-3.2.3.0.bin" + +static u32 *bfad_load_fwimg(struct pci_dev *pdev); +static void bfad_free_fwimg(void); +static void bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image, + u32 *bfi_image_size, char *fw_name); + +static const char *msix_name_ct[] = { + "ctrl", + "cpe0", "cpe1", "cpe2", "cpe3", + "rme0", "rme1", "rme2", "rme3" }; + +static const char *msix_name_cb[] = { + "cpe0", "cpe1", "cpe2", "cpe3", + "rme0", "rme1", "rme2", "rme3", + "eemc", "elpu0", "elpu1", "epss", "mlpu" }; + +MODULE_FIRMWARE(BFAD_FW_FILE_CB); +MODULE_FIRMWARE(BFAD_FW_FILE_CT); +MODULE_FIRMWARE(BFAD_FW_FILE_CT2); + +module_param(os_name, charp, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(os_name, "OS name of the hba host machine"); +module_param(os_patch, charp, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(os_patch, "OS patch level of the hba host machine"); +module_param(host_name, charp, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(host_name, "Hostname of the hba host machine"); +module_param(num_rports, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(num_rports, "Max number of rports supported per port " + "(physical/logical), default=1024"); +module_param(num_ios, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(num_ios, "Max number of ioim requests, default=2000"); +module_param(num_tms, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(num_tms, "Max number of task im requests, default=128"); +module_param(num_fcxps, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(num_fcxps, "Max number of fcxp requests, default=64"); +module_param(num_ufbufs, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(num_ufbufs, "Max number of unsolicited frame " + "buffers, default=64"); +module_param(reqq_size, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(reqq_size, "Max number of request queue elements, " + "default=256"); +module_param(rspq_size, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(rspq_size, "Max number of response queue elements, " + "default=64"); +module_param(num_sgpgs, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(num_sgpgs, "Number of scatter/gather pages, default=2048"); +module_param(rport_del_timeout, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(rport_del_timeout, "Rport delete timeout, default=90 secs, " + "Range[>0]"); +module_param(bfa_lun_queue_depth, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(bfa_lun_queue_depth, "Lun queue depth, default=32, Range[>0]"); +module_param(bfa_io_max_sge, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(bfa_io_max_sge, "Max io scatter/gather elements, default=255"); +module_param(bfa_log_level, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(bfa_log_level, "Driver log level, default=3, " + "Range[Critical:1|Error:2|Warning:3|Info:4]"); +module_param(ioc_auto_recover, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(ioc_auto_recover, "IOC auto recovery, default=1, " + "Range[off:0|on:1]"); +module_param(bfa_linkup_delay, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(bfa_linkup_delay, "Link up delay, default=30 secs for " + "boot port. Otherwise 10 secs in RHEL4 & 0 for " + "[RHEL5, SLES10, ESX40] Range[>0]"); +module_param(msix_disable_cb, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(msix_disable_cb, "Disable Message Signaled Interrupts " + "for Brocade-415/425/815/825 cards, default=0, " + " Range[false:0|true:1]"); +module_param(msix_disable_ct, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(msix_disable_ct, "Disable Message Signaled Interrupts " + "if possible for Brocade-1010/1020/804/1007/902/1741 " + "cards, default=0, Range[false:0|true:1]"); +module_param(fdmi_enable, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(fdmi_enable, "Enables fdmi registration, default=1, " + "Range[false:0|true:1]"); +module_param(pcie_max_read_reqsz, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(pcie_max_read_reqsz, "PCIe max read request size, default=0 " + "(use system setting), Range[128|256|512|1024|2048|4096]"); +module_param(bfa_debugfs_enable, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(bfa_debugfs_enable, "Enables debugfs feature, default=1," + " Range[false:0|true:1]"); +module_param(max_xfer_size, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(max_xfer_size, "default=32MB," + " Range[64k|128k|256k|512k|1024k|2048k]"); +module_param(max_rport_logins, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(max_rport_logins, "Max number of logins to initiator and target rports on a port (physical/logical), default=1024"); + +static void +bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event); +static void +bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event); +static void +bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event); +static void +bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event); +static void +bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event); +static void +bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event); +static void +bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event); + +/* + * Beginning state for the driver instance, awaiting the pci_probe event + */ +static void +bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event) +{ + bfa_trc(bfad, event); + + switch (event) { + case BFAD_E_CREATE: + bfa_sm_set_state(bfad, bfad_sm_created); + bfad->bfad_tsk = kthread_create(bfad_worker, (void *) bfad, + "%s", "bfad_worker"); + if (IS_ERR(bfad->bfad_tsk)) { + printk(KERN_INFO "bfad[%d]: Kernel thread " + "creation failed!\n", bfad->inst_no); + bfa_sm_send_event(bfad, BFAD_E_KTHREAD_CREATE_FAILED); + } + bfa_sm_send_event(bfad, BFAD_E_INIT); + break; + + case BFAD_E_STOP: + /* Ignore stop; already in uninit */ + break; + + default: + bfa_sm_fault(bfad, event); + } +} + +/* + * Driver Instance is created, awaiting event INIT to initialize the bfad + */ +static void +bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event) +{ + unsigned long flags; + bfa_status_t ret; + + bfa_trc(bfad, event); + + switch (event) { + case BFAD_E_INIT: + bfa_sm_set_state(bfad, bfad_sm_initializing); + + 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); + bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED); + break; + } + + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfa_iocfc_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", + __func__, bfad->inst_no); + } + + bfad_init_timer(bfad); + + wait_for_completion(&bfad->comp); + + if ((bfad->bfad_flags & BFAD_HAL_INIT_DONE)) { + bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS); + } else { + printk(KERN_WARNING + "bfa %s: bfa init failed\n", + bfad->pci_name); + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfa_fcs_init(&bfad->bfa_fcs); + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + + ret = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM); + if (ret != BFA_STATUS_OK) { + init_completion(&bfad->comp); + + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfad->pport.flags |= BFAD_PORT_DELETE; + bfa_fcs_exit(&bfad->bfa_fcs); + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + + wait_for_completion(&bfad->comp); + + bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED); + break; + } + bfad->bfad_flags |= BFAD_HAL_INIT_FAIL; + bfa_sm_send_event(bfad, BFAD_E_HAL_INIT_FAILED); + } + + break; + + case BFAD_E_KTHREAD_CREATE_FAILED: + bfa_sm_set_state(bfad, bfad_sm_uninit); + break; + + default: + bfa_sm_fault(bfad, event); + } +} + +static void +bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event) +{ + int retval; + unsigned long flags; + + bfa_trc(bfad, event); + + switch (event) { + case BFAD_E_INIT_SUCCESS: + kthread_stop(bfad->bfad_tsk); + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfad->bfad_tsk = NULL; + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + + retval = bfad_start_ops(bfad); + if (retval != BFA_STATUS_OK) { + bfa_sm_set_state(bfad, bfad_sm_failed); + break; + } + bfa_sm_set_state(bfad, bfad_sm_operational); + break; + + case BFAD_E_INIT_FAILED: + bfa_sm_set_state(bfad, bfad_sm_uninit); + kthread_stop(bfad->bfad_tsk); + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfad->bfad_tsk = NULL; + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + break; + + case BFAD_E_HAL_INIT_FAILED: + bfa_sm_set_state(bfad, bfad_sm_failed); + break; + default: + bfa_sm_fault(bfad, event); + } +} + +static void +bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event) +{ + int retval; + + bfa_trc(bfad, event); + + switch (event) { + case BFAD_E_INIT_SUCCESS: + retval = bfad_start_ops(bfad); + if (retval != BFA_STATUS_OK) + break; + bfa_sm_set_state(bfad, bfad_sm_operational); + break; + + case BFAD_E_STOP: + bfa_sm_set_state(bfad, bfad_sm_fcs_exit); + bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP); + break; + + case BFAD_E_EXIT_COMP: + bfa_sm_set_state(bfad, bfad_sm_uninit); + bfad_remove_intr(bfad); + del_timer_sync(&bfad->hal_tmo); + break; + + default: + bfa_sm_fault(bfad, event); + } +} + +static void +bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event) +{ + bfa_trc(bfad, event); + + switch (event) { + case BFAD_E_STOP: + bfa_sm_set_state(bfad, bfad_sm_fcs_exit); + bfad_fcs_stop(bfad); + break; + + default: + bfa_sm_fault(bfad, event); + } +} + +static void +bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event) +{ + bfa_trc(bfad, event); + + switch (event) { + case BFAD_E_FCS_EXIT_COMP: + bfa_sm_set_state(bfad, bfad_sm_stopping); + bfad_stop(bfad); + break; + + default: + bfa_sm_fault(bfad, event); + } +} + +static void +bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event) +{ + bfa_trc(bfad, event); + + switch (event) { + case BFAD_E_EXIT_COMP: + bfa_sm_set_state(bfad, bfad_sm_uninit); + bfad_remove_intr(bfad); + del_timer_sync(&bfad->hal_tmo); + bfad_im_probe_undo(bfad); + bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE; + bfad_uncfg_pport(bfad); + break; + + default: + bfa_sm_fault(bfad, event); + break; + } +} + +/* + * 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; + + /* + * If BFAD_HAL_INIT_FAIL flag is set: + * Wake up the kernel thread to start + * the bfad operations after HAL init done + */ + if ((bfad->bfad_flags & BFAD_HAL_INIT_FAIL)) { + bfad->bfad_flags &= ~BFAD_HAL_INIT_FAIL; + wake_up_process(bfad->bfad_tsk); + } + } + + complete(&bfad->comp); +} + +/* + * BFA_FCS callbacks + */ +struct bfad_port_s * +bfa_fcb_lport_new(struct bfad_s *bfad, struct bfa_fcs_lport_s *port, + enum bfa_lport_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; + + if (roles & BFA_LPORT_ROLE_FCP_IM) { + rc = bfad_im_port_new(bfad, port_drv); + if (rc != BFA_STATUS_OK) { + bfad_im_port_delete(bfad, port_drv); + port_drv = NULL; + } + } + + return port_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; +} + +/* + * FCS PBC VPORT Create + */ +void +bfa_fcb_pbc_vport_create(struct bfad_s *bfad, struct bfi_pbc_vport_s pbc_vport) +{ + + struct bfa_lport_cfg_s port_cfg = {0}; + struct bfad_vport_s *vport; + int rc; + + vport = kzalloc(sizeof(struct bfad_vport_s), GFP_ATOMIC); + if (!vport) { + bfa_trc(bfad, 0); + return; + } + + vport->drv_port.bfad = bfad; + port_cfg.roles = BFA_LPORT_ROLE_FCP_IM; + port_cfg.pwwn = pbc_vport.vp_pwwn; + port_cfg.nwwn = pbc_vport.vp_nwwn; + port_cfg.preboot_vp = BFA_TRUE; + + rc = bfa_fcs_pbc_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, 0, + &port_cfg, vport); + + if (rc != BFA_STATUS_OK) { + bfa_trc(bfad, 0); + return; + } + + list_add_tail(&vport->list_entry, &bfad->pbc_vport_list); +} + +void +bfad_hal_mem_release(struct bfad_s *bfad) +{ + struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo; + struct bfa_mem_dma_s *dma_info, *dma_elem; + struct bfa_mem_kva_s *kva_info, *kva_elem; + struct list_head *dm_qe, *km_qe; + + dma_info = &hal_meminfo->dma_info; + kva_info = &hal_meminfo->kva_info; + + /* Iterate through the KVA meminfo queue */ + list_for_each(km_qe, &kva_info->qe) { + kva_elem = (struct bfa_mem_kva_s *) km_qe; + vfree(kva_elem->kva); + } + + /* Iterate through the DMA meminfo queue */ + list_for_each(dm_qe, &dma_info->qe) { + dma_elem = (struct bfa_mem_dma_s *) dm_qe; + dma_free_coherent(&bfad->pcidev->dev, + dma_elem->mem_len, dma_elem->kva, + (dma_addr_t) dma_elem->dma); + } + + 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 && num_fcxps <= BFA_FCXP_MAX) + bfa_cfg->fwcfg.num_fcxp_reqs = num_fcxps; + if (num_ufbufs > 0 && num_ufbufs <= BFA_UF_MAX) + 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 && num_sgpgs <= BFA_SGPG_MAX) + 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_dma_s *dma_info, *dma_elem; + struct bfa_mem_kva_s *kva_info, *kva_elem; + struct list_head *dm_qe, *km_qe; + bfa_status_t rc = BFA_STATUS_OK; + dma_addr_t phys_addr; + + bfa_cfg_get_default(&bfad->ioc_cfg); + 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, &bfad->bfa); + + dma_info = &hal_meminfo->dma_info; + kva_info = &hal_meminfo->kva_info; + + /* Iterate through the KVA meminfo queue */ + list_for_each(km_qe, &kva_info->qe) { + kva_elem = (struct bfa_mem_kva_s *) km_qe; + kva_elem->kva = vmalloc(kva_elem->mem_len); + if (kva_elem->kva == NULL) { + bfad_hal_mem_release(bfad); + rc = BFA_STATUS_ENOMEM; + goto ext; + } + memset(kva_elem->kva, 0, kva_elem->mem_len); + } + + /* Iterate through the DMA meminfo queue */ + list_for_each(dm_qe, &dma_info->qe) { + dma_elem = (struct bfa_mem_dma_s *) dm_qe; + dma_elem->kva = dma_alloc_coherent(&bfad->pcidev->dev, + dma_elem->mem_len, + &phys_addr, GFP_KERNEL); + if (dma_elem->kva == NULL) { + bfad_hal_mem_release(bfad); + rc = BFA_STATUS_ENOMEM; + goto ext; + } + dma_elem->dma = phys_addr; + memset(dma_elem->kva, 0, dma_elem->mem_len); + } +ext: + return rc; +} + +/* + * Create a vport under a vf. + */ +bfa_status_t +bfad_vport_create(struct bfad_s *bfad, u16 vf_id, + struct bfa_lport_cfg_s *port_cfg, struct device *dev) +{ + 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_LPORT_ROLE_FCP_IM) { + rc = bfad_im_scsi_host_alloc(bfad, vport->drv_port.im_port, + dev); + if (rc != BFA_STATUS_OK) + goto ext_free_fcs_vport; + } + + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfa_fcs_vport_start(&vport->fcs_vport); + list_add_tail(&vport->list_entry, &bfad->vport_list); + 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; +} + +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_beat(&bfad->bfa.timer_mod); + + 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) +{ + int rc = -ENODEV; + + if (pci_enable_device(pdev)) { + printk(KERN_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) || + (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)) { + if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) || + (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)) { + printk(KERN_ERR "pci_set_dma_mask fail %p\n", pdev); + goto out_release_region; + } + } + + /* Enable PCIE Advanced Error Recovery (AER) if kernel supports */ + pci_enable_pcie_error_reporting(pdev); + + bfad->pci_bar0_kva = pci_iomap(pdev, 0, pci_resource_len(pdev, 0)); + bfad->pci_bar2_kva = pci_iomap(pdev, 2, pci_resource_len(pdev, 2)); + + if (bfad->pci_bar0_kva == NULL) { + printk(KERN_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->hal_pcidev.ssid = pdev->subsystem_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; + + /* Adjust PCIe Maximum Read Request Size */ + if (pci_is_pcie(pdev) && pcie_max_read_reqsz) { + if (pcie_max_read_reqsz >= 128 && + pcie_max_read_reqsz <= 4096 && + is_power_of_2(pcie_max_read_reqsz)) { + int max_rq = pcie_get_readrq(pdev); + printk(KERN_WARNING "BFA[%s]: " + "pcie_max_read_request_size is %d, " + "reset to %d\n", bfad->pci_name, max_rq, + pcie_max_read_reqsz); + pcie_set_readrq(pdev, pcie_max_read_reqsz); + } else { + printk(KERN_WARNING "BFA[%s]: invalid " + "pcie_max_read_request_size %d ignored\n", + bfad->pci_name, pcie_max_read_reqsz); + } + } + + pci_save_state(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) +{ + pci_iounmap(pdev, bfad->pci_bar0_kva); + pci_iounmap(pdev, bfad->pci_bar2_kva); + pci_release_regions(pdev); + /* Disable PCIE Advanced Error Recovery (AER) */ + pci_disable_pcie_error_reporting(pdev); + pci_disable_device(pdev); +} + +bfa_status_t +bfad_drv_init(struct bfad_s *bfad) +{ + bfa_status_t rc; + unsigned long flags; + + 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, %s", + "System may need more memory.\n"); + return BFA_STATUS_FAILED; + } + + bfad->bfa.trcmod = bfad->trcmod; + bfad->bfa.plog = &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); + + /* FCS INIT */ + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfad->bfa_fcs.trcmod = bfad->trcmod; + bfa_fcs_attach(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE); + bfad->bfa_fcs.fdmi_enabled = fdmi_enable; + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + + bfad->bfad_flags |= BFAD_DRV_INIT_DONE; + + return BFA_STATUS_OK; +} + +void +bfad_drv_uninit(struct bfad_s *bfad) +{ + unsigned long flags; + + spin_lock_irqsave(&bfad->bfad_lock, flags); + init_completion(&bfad->comp); + bfa_iocfc_stop(&bfad->bfa); + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + wait_for_completion(&bfad->comp); + + del_timer_sync(&bfad->hal_tmo); + bfa_isr_disable(&bfad->bfa); + bfa_detach(&bfad->bfa); + bfad_remove_intr(bfad); + bfad_hal_mem_release(bfad); + + bfad->bfad_flags &= ~BFAD_DRV_INIT_DONE; +} + +void +bfad_drv_start(struct bfad_s *bfad) +{ + unsigned long flags; + + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfa_iocfc_start(&bfad->bfa); + bfa_fcs_pbc_vport_init(&bfad->bfa_fcs); + bfa_fcs_fabric_modstart(&bfad->bfa_fcs); + bfad->bfad_flags |= BFAD_HAL_START_DONE; + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + + if (bfad->im) + flush_workqueue(bfad->im->drv_workq); +} + +void +bfad_fcs_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); + + bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP); +} + +void +bfad_stop(struct bfad_s *bfad) +{ + unsigned long flags; + + spin_lock_irqsave(&bfad->bfad_lock, flags); + init_completion(&bfad->comp); + bfa_iocfc_stop(&bfad->bfa); + bfad->bfad_flags &= ~BFAD_HAL_START_DONE; + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + wait_for_completion(&bfad->comp); + + bfa_sm_send_event(bfad, BFAD_E_EXIT_COMP); +} + +bfa_status_t +bfad_cfg_pport(struct bfad_s *bfad, enum bfa_lport_role role) +{ + int rc = BFA_STATUS_OK; + + /* Allocate scsi_host for the physical port */ + if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) && + (role & BFA_LPORT_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, + &bfad->pcidev->dev); + if (rc != BFA_STATUS_OK) + goto out; + + bfad->pport.roles |= BFA_LPORT_ROLE_FCP_IM; + } + + bfad->bfad_flags |= BFAD_CFG_PPORT_DONE; + +out: + return rc; +} + +void +bfad_uncfg_pport(struct bfad_s *bfad) +{ + if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) && + (bfad->pport.roles & BFA_LPORT_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_LPORT_ROLE_FCP_IM; + } + + bfad->bfad_flags &= ~BFAD_CFG_PPORT_DONE; +} + +bfa_status_t +bfad_start_ops(struct bfad_s *bfad) { + + int retval; + unsigned long flags; + struct bfad_vport_s *vport, *vport_new; + struct bfa_fcs_driver_info_s driver_info; + + /* Limit min/max. xfer size to [64k-32MB] */ + if (max_xfer_size < BFAD_MIN_SECTORS >> 1) + max_xfer_size = BFAD_MIN_SECTORS >> 1; + if (max_xfer_size > BFAD_MAX_SECTORS >> 1) + max_xfer_size = BFAD_MAX_SECTORS >> 1; + + /* Fill the driver_info info to fcs*/ + 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 driver info init */ + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info); + + if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE) + bfa_fcs_update_cfg(&bfad->bfa_fcs); + else + bfa_fcs_init(&bfad->bfa_fcs); + + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + + if (!(bfad->bfad_flags & BFAD_CFG_PPORT_DONE)) { + retval = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM); + if (retval != BFA_STATUS_OK) + return BFA_STATUS_FAILED; + } + + /* Setup fc host fixed attribute if the lk supports */ + bfad_fc_host_init(bfad->pport.im_port); + + /* BFAD level FC4 IM specific resource allocation */ + retval = bfad_im_probe(bfad); + if (retval != BFA_STATUS_OK) { + printk(KERN_WARNING "bfad_im_probe failed\n"); + if (bfa_sm_cmp_state(bfad, bfad_sm_initializing)) + bfa_sm_set_state(bfad, bfad_sm_failed); + return BFA_STATUS_FAILED; + } else + bfad->bfad_flags |= BFAD_FC4_PROBE_DONE; + + bfad_drv_start(bfad); + + /* Complete pbc vport create */ + list_for_each_entry_safe(vport, vport_new, &bfad->pbc_vport_list, + list_entry) { + struct fc_vport_identifiers vid; + struct fc_vport *fc_vport; + char pwwn_buf[BFA_STRING_32]; + + memset(&vid, 0, sizeof(vid)); + vid.roles = FC_PORT_ROLE_FCP_INITIATOR; + vid.vport_type = FC_PORTTYPE_NPIV; + vid.disable = false; + vid.node_name = wwn_to_u64((u8 *) + (&((vport->fcs_vport).lport.port_cfg.nwwn))); + vid.port_name = wwn_to_u64((u8 *) + (&((vport->fcs_vport).lport.port_cfg.pwwn))); + fc_vport = fc_vport_create(bfad->pport.im_port->shost, 0, &vid); + if (!fc_vport) { + wwn2str(pwwn_buf, vid.port_name); + printk(KERN_WARNING "bfad%d: failed to create pbc vport" + " %s\n", bfad->inst_no, pwwn_buf); + } + list_del(&vport->list_entry); + kfree(vport); + } + + /* + * If bfa_linkup_delay is set to -1 default; try to retrive the + * value using the bfad_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_get_linkup_delay(bfad); + bfad_rport_online_wait(bfad); + bfa_linkup_delay = -1; + } else + bfad_rport_online_wait(bfad); + + BFA_LOG(KERN_INFO, bfad, bfa_log_level, "bfa device claimed\n"); + + return BFA_STATUS_OK; +} + +int +bfad_worker(void *ptr) +{ + struct bfad_s *bfad = ptr; + unsigned long flags; + + if (kthread_should_stop()) + return 0; + + /* Send event BFAD_E_INIT_SUCCESS */ + bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS); + + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfad->bfad_tsk = NULL; + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + + return 0; +} + +/* + * BFA driver interrupt functions + */ +irqreturn_t +bfad_intx(int irq, void *dev_id) +{ + struct bfad_s *bfad = dev_id; + struct list_head doneq; + unsigned long flags; + bfa_boolean_t rc; + + spin_lock_irqsave(&bfad->bfad_lock, flags); + rc = bfa_intx(&bfad->bfa); + if (!rc) { + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + return IRQ_NONE; + } + + 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); + } + + return IRQ_HANDLED; + +} + +static irqreturn_t +bfad_msix(int irq, void *dev_id) +{ + struct bfad_msix_s *vec = dev_id; + struct bfad_s *bfad = vec->bfad; + struct list_head doneq; + unsigned long flags; + + spin_lock_irqsave(&bfad->bfad_lock, flags); + + bfa_msix(&bfad->bfa, vec->msix.entry); + 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); + } + + return IRQ_HANDLED; +} + +/* + * Initialize the MSIX entry table. + */ +static void +bfad_init_msix_entry(struct bfad_s *bfad, struct msix_entry *msix_entries, + int mask, int max_bit) +{ + int i; + int match = 0x00000001; + + for (i = 0, bfad->nvec = 0; i < MAX_MSIX_ENTRY; i++) { + if (mask & match) { + bfad->msix_tab[bfad->nvec].msix.entry = i; + bfad->msix_tab[bfad->nvec].bfad = bfad; + msix_entries[bfad->nvec].entry = i; + bfad->nvec++; + } + + match <<= 1; + } + +} + +int +bfad_install_msix_handler(struct bfad_s *bfad) +{ + int i, error = 0; + + for (i = 0; i < bfad->nvec; i++) { + sprintf(bfad->msix_tab[i].name, "bfa-%s-%s", + bfad->pci_name, + ((bfa_asic_id_cb(bfad->hal_pcidev.device_id)) ? + msix_name_cb[i] : msix_name_ct[i])); + + error = request_irq(bfad->msix_tab[i].msix.vector, + (irq_handler_t) bfad_msix, 0, + bfad->msix_tab[i].name, &bfad->msix_tab[i]); + bfa_trc(bfad, i); + bfa_trc(bfad, bfad->msix_tab[i].msix.vector); + if (error) { + int j; + + for (j = 0; j < i; j++) + free_irq(bfad->msix_tab[j].msix.vector, + &bfad->msix_tab[j]); + + bfad->bfad_flags &= ~BFAD_MSIX_ON; + pci_disable_msix(bfad->pcidev); + + return 1; + } + } + + return 0; +} + +/* + * Setup MSIX based interrupt. + */ +int +bfad_setup_intr(struct bfad_s *bfad) +{ + int error; + u32 mask = 0, i, num_bit = 0, max_bit = 0; + struct msix_entry msix_entries[MAX_MSIX_ENTRY]; + struct pci_dev *pdev = bfad->pcidev; + u16 reg; + + /* Call BFA to get the msix map for this PCI function. */ + bfa_msix_getvecs(&bfad->bfa, &mask, &num_bit, &max_bit); + + /* Set up the msix entry table */ + bfad_init_msix_entry(bfad, msix_entries, mask, max_bit); + + if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) || + (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) { + + error = pci_enable_msix_exact(bfad->pcidev, + msix_entries, bfad->nvec); + /* In CT1 & CT2, try to allocate just one vector */ + if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) { + printk(KERN_WARNING "bfa %s: trying one msix " + "vector failed to allocate %d[%d]\n", + bfad->pci_name, bfad->nvec, error); + bfad->nvec = 1; + error = pci_enable_msix_exact(bfad->pcidev, + msix_entries, 1); + } + + if (error) { + printk(KERN_WARNING "bfad%d: " + "pci_enable_msix_exact failed (%d), " + "use line based.\n", + bfad->inst_no, error); + goto line_based; + } + + /* Disable INTX in MSI-X mode */ + pci_read_config_word(pdev, PCI_COMMAND, ®); + + if (!(reg & PCI_COMMAND_INTX_DISABLE)) + pci_write_config_word(pdev, PCI_COMMAND, + reg | PCI_COMMAND_INTX_DISABLE); + + /* Save the vectors */ + for (i = 0; i < bfad->nvec; i++) { + bfa_trc(bfad, msix_entries[i].vector); + bfad->msix_tab[i].msix.vector = msix_entries[i].vector; + } + + bfa_msix_init(&bfad->bfa, bfad->nvec); + + bfad->bfad_flags |= BFAD_MSIX_ON; + + return 0; + } + +line_based: + error = request_irq(bfad->pcidev->irq, (irq_handler_t)bfad_intx, + BFAD_IRQ_FLAGS, BFAD_DRIVER_NAME, bfad); + if (error) + return error; + + bfad->bfad_flags |= BFAD_INTX_ON; + + return 0; +} + +void +bfad_remove_intr(struct bfad_s *bfad) +{ + int i; + + if (bfad->bfad_flags & BFAD_MSIX_ON) { + for (i = 0; i < bfad->nvec; i++) + free_irq(bfad->msix_tab[i].msix.vector, + &bfad->msix_tab[i]); + + pci_disable_msix(bfad->pcidev); + bfad->bfad_flags &= ~BFAD_MSIX_ON; + } else if (bfad->bfad_flags & BFAD_INTX_ON) { + free_irq(bfad->pcidev->irq, bfad); + } +} + +/* + * 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, i; + + /* For single port cards - only claim function 0 */ + if ((pdev->device == BFA_PCI_DEVICE_ID_FC_8G1P) && + (PCI_FUNC(pdev->devfn) != 0)) + return -ENODEV; + + 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; + } + + /* TRACE INIT */ + bfa_trc_init(bfad->trcmod); + bfa_trc(bfad, bfad_inst); + + /* AEN INIT */ + INIT_LIST_HEAD(&bfad->free_aen_q); + INIT_LIST_HEAD(&bfad->active_aen_q); + for (i = 0; i < BFA_AEN_MAX_ENTRY; i++) + list_add_tail(&bfad->aen_list[i].qe, &bfad->free_aen_q); + + if (!(bfad_load_fwimg(pdev))) { + 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); + + /* Initializing the state machine: State set to uninit */ + bfa_sm_set_state(bfad, bfad_sm_uninit); + + spin_lock_init(&bfad->bfad_lock); + spin_lock_init(&bfad->bfad_aen_spinlock); + + pci_set_drvdata(pdev, bfad); + + bfad->ref_count = 0; + bfad->pport.bfad = bfad; + INIT_LIST_HEAD(&bfad->pbc_vport_list); + INIT_LIST_HEAD(&bfad->vport_list); + + /* Setup the debugfs node for this bfad */ + if (bfa_debugfs_enable) + bfad_debugfs_init(&bfad->pport); + + retval = bfad_drv_init(bfad); + if (retval != BFA_STATUS_OK) + goto out_drv_init_failure; + + bfa_sm_send_event(bfad, BFAD_E_CREATE); + + if (bfa_sm_cmp_state(bfad, bfad_sm_uninit)) + goto out_bfad_sm_failure; + + return 0; + +out_bfad_sm_failure: + bfad_hal_mem_release(bfad); +out_drv_init_failure: + /* Remove the debugfs node for this bfad */ + kfree(bfad->regdata); + bfad_debugfs_exit(&bfad->pport); + 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); + + spin_lock_irqsave(&bfad->bfad_lock, flags); + if (bfad->bfad_tsk != NULL) { + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + kthread_stop(bfad->bfad_tsk); + } else { + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + } + + /* Send Event BFAD_E_STOP */ + bfa_sm_send_event(bfad, BFAD_E_STOP); + + /* Driver detach and dealloc mem */ + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfa_detach(&bfad->bfa); + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + bfad_hal_mem_release(bfad); + + /* Remove the debugfs node for this bfad */ + kfree(bfad->regdata); + bfad_debugfs_exit(&bfad->pport); + + /* Cleaning the BFAD instance */ + 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); +} + +/* + * PCI Error Recovery entry, error detected. + */ +static pci_ers_result_t +bfad_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) +{ + struct bfad_s *bfad = pci_get_drvdata(pdev); + unsigned long flags; + pci_ers_result_t ret = PCI_ERS_RESULT_NONE; + + dev_printk(KERN_ERR, &pdev->dev, + "error detected state: %d - flags: 0x%x\n", + state, bfad->bfad_flags); + + switch (state) { + case pci_channel_io_normal: /* non-fatal error */ + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfad->bfad_flags &= ~BFAD_EEH_BUSY; + /* Suspend/fail all bfa operations */ + bfa_ioc_suspend(&bfad->bfa.ioc); + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + del_timer_sync(&bfad->hal_tmo); + ret = PCI_ERS_RESULT_CAN_RECOVER; + break; + case pci_channel_io_frozen: /* fatal error */ + init_completion(&bfad->comp); + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfad->bfad_flags |= BFAD_EEH_BUSY; + /* Suspend/fail all bfa operations */ + bfa_ioc_suspend(&bfad->bfa.ioc); + bfa_fcs_stop(&bfad->bfa_fcs); + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + wait_for_completion(&bfad->comp); + + bfad_remove_intr(bfad); + del_timer_sync(&bfad->hal_tmo); + pci_disable_device(pdev); + ret = PCI_ERS_RESULT_NEED_RESET; + break; + case pci_channel_io_perm_failure: /* PCI Card is DEAD */ + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfad->bfad_flags |= BFAD_EEH_BUSY | + BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE; + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + + /* If the error_detected handler is called with the reason + * pci_channel_io_perm_failure - it will subsequently call + * pci_remove() entry point to remove the pci device from the + * system - So defer the cleanup to pci_remove(); cleaning up + * here causes inconsistent state during pci_remove(). + */ + ret = PCI_ERS_RESULT_DISCONNECT; + break; + default: + WARN_ON(1); + } + + return ret; +} + +int +restart_bfa(struct bfad_s *bfad) +{ + unsigned long flags; + struct pci_dev *pdev = bfad->pcidev; + + bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, + &bfad->meminfo, &bfad->hal_pcidev); + + /* Enable Interrupt and wait bfa_init completion */ + if (bfad_setup_intr(bfad)) { + dev_printk(KERN_WARNING, &pdev->dev, + "%s: bfad_setup_intr failed\n", bfad->pci_name); + bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED); + return -1; + } + + init_completion(&bfad->comp); + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfa_iocfc_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)) + dev_printk(KERN_WARNING, &pdev->dev, + "%s: install_msix failed.\n", bfad->pci_name); + + bfad_init_timer(bfad); + wait_for_completion(&bfad->comp); + bfad_drv_start(bfad); + + return 0; +} + +/* + * PCI Error Recovery entry, re-initialize the chip. + */ +static pci_ers_result_t +bfad_pci_slot_reset(struct pci_dev *pdev) +{ + struct bfad_s *bfad = pci_get_drvdata(pdev); + u8 byte; + + dev_printk(KERN_ERR, &pdev->dev, + "bfad_pci_slot_reset flags: 0x%x\n", bfad->bfad_flags); + + if (pci_enable_device(pdev)) { + dev_printk(KERN_ERR, &pdev->dev, "Cannot re-enable " + "PCI device after reset.\n"); + return PCI_ERS_RESULT_DISCONNECT; + } + + pci_restore_state(pdev); + + /* + * Read some byte (e.g. DMA max. payload size which can't + * be 0xff any time) to make sure - we did not hit another PCI error + * in the middle of recovery. If we did, then declare permanent failure. + */ + pci_read_config_byte(pdev, 0x68, &byte); + if (byte == 0xff) { + dev_printk(KERN_ERR, &pdev->dev, + "slot_reset failed ... got another PCI error !\n"); + goto out_disable_device; + } + + pci_save_state(pdev); + pci_set_master(pdev); + + if (pci_set_dma_mask(bfad->pcidev, DMA_BIT_MASK(64)) != 0) + if (pci_set_dma_mask(bfad->pcidev, DMA_BIT_MASK(32)) != 0) + goto out_disable_device; + + pci_cleanup_aer_uncorrect_error_status(pdev); + + if (restart_bfa(bfad) == -1) + goto out_disable_device; + + pci_enable_pcie_error_reporting(pdev); + dev_printk(KERN_WARNING, &pdev->dev, + "slot_reset completed flags: 0x%x!\n", bfad->bfad_flags); + + return PCI_ERS_RESULT_RECOVERED; + +out_disable_device: + pci_disable_device(pdev); + return PCI_ERS_RESULT_DISCONNECT; +} + +static pci_ers_result_t +bfad_pci_mmio_enabled(struct pci_dev *pdev) +{ + unsigned long flags; + struct bfad_s *bfad = pci_get_drvdata(pdev); + + dev_printk(KERN_INFO, &pdev->dev, "mmio_enabled\n"); + + /* Fetch FW diagnostic information */ + bfa_ioc_debug_save_ftrc(&bfad->bfa.ioc); + + /* Cancel all pending IOs */ + spin_lock_irqsave(&bfad->bfad_lock, flags); + init_completion(&bfad->comp); + bfa_fcs_stop(&bfad->bfa_fcs); + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + wait_for_completion(&bfad->comp); + + bfad_remove_intr(bfad); + del_timer_sync(&bfad->hal_tmo); + pci_disable_device(pdev); + + return PCI_ERS_RESULT_NEED_RESET; +} + +static void +bfad_pci_resume(struct pci_dev *pdev) +{ + unsigned long flags; + struct bfad_s *bfad = pci_get_drvdata(pdev); + + dev_printk(KERN_WARNING, &pdev->dev, "resume\n"); + + /* wait until the link is online */ + bfad_rport_online_wait(bfad); + + spin_lock_irqsave(&bfad->bfad_lock, flags); + bfad->bfad_flags &= ~BFAD_EEH_BUSY; + spin_unlock_irqrestore(&bfad->bfad_lock, flags); +} + +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, + }, + { + .vendor = BFA_PCI_VENDOR_ID_BROCADE, + .device = BFA_PCI_DEVICE_ID_CT_FC, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .class = (PCI_CLASS_SERIAL_FIBER << 8), + .class_mask = ~0, + }, + { + .vendor = BFA_PCI_VENDOR_ID_BROCADE, + .device = BFA_PCI_DEVICE_ID_CT2, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .class = (PCI_CLASS_SERIAL_FIBER << 8), + .class_mask = ~0, + }, + + { + .vendor = BFA_PCI_VENDOR_ID_BROCADE, + .device = BFA_PCI_DEVICE_ID_CT2_QUAD, + .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); + +/* + * PCI error recovery handlers. + */ +static struct pci_error_handlers bfad_err_handler = { + .error_detected = bfad_pci_error_detected, + .slot_reset = bfad_pci_slot_reset, + .mmio_enabled = bfad_pci_mmio_enabled, + .resume = bfad_pci_resume, +}; + +static struct pci_driver bfad_pci_driver = { + .name = BFAD_DRIVER_NAME, + .id_table = bfad_id_table, + .probe = bfad_pci_probe, + .remove = bfad_pci_remove, + .err_handler = &bfad_err_handler, +}; + +/* + * 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_im_module_init(); + if (error) { + error = -ENOMEM; + printk(KERN_WARNING "bfad_im_module_init failure\n"); + goto ext; + } + + if (strcmp(FCPI_NAME, " fcpim") == 0) + supported_fc4s |= BFA_LPORT_ROLE_FCP_IM; + + bfa_auto_recover = ioc_auto_recover; + bfa_fcs_rport_set_del_timeout(rport_del_timeout); + bfa_fcs_rport_set_max_logins(max_rport_logins); + + error = pci_register_driver(&bfad_pci_driver); + if (error) { + printk(KERN_WARNING "pci_register_driver failure\n"); + goto ext; + } + + return 0; + +ext: + bfad_im_module_exit(); + return error; +} + +/* + * Driver module exit. + */ +static void __exit +bfad_exit(void) +{ + pci_unregister_driver(&bfad_pci_driver); + bfad_im_module_exit(); + bfad_free_fwimg(); +} + +/* Firmware handling */ +static void +bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image, + u32 *bfi_image_size, char *fw_name) +{ + const struct firmware *fw; + + if (request_firmware(&fw, fw_name, &pdev->dev)) { + printk(KERN_ALERT "Can't locate firmware %s\n", fw_name); + *bfi_image = NULL; + goto out; + } + + *bfi_image = vmalloc(fw->size); + if (NULL == *bfi_image) { + printk(KERN_ALERT "Fail to allocate buffer for fw image " + "size=%x!\n", (u32) fw->size); + goto out; + } + + memcpy(*bfi_image, fw->data, fw->size); + *bfi_image_size = fw->size/sizeof(u32); +out: + release_firmware(fw); +} + +static u32 * +bfad_load_fwimg(struct pci_dev *pdev) +{ + if (bfa_asic_id_ct2(pdev->device)) { + if (bfi_image_ct2_size == 0) + bfad_read_firmware(pdev, &bfi_image_ct2, + &bfi_image_ct2_size, BFAD_FW_FILE_CT2); + return bfi_image_ct2; + } else if (bfa_asic_id_ct(pdev->device)) { + if (bfi_image_ct_size == 0) + bfad_read_firmware(pdev, &bfi_image_ct, + &bfi_image_ct_size, BFAD_FW_FILE_CT); + return bfi_image_ct; + } else if (bfa_asic_id_cb(pdev->device)) { + if (bfi_image_cb_size == 0) + bfad_read_firmware(pdev, &bfi_image_cb, + &bfi_image_cb_size, BFAD_FW_FILE_CB); + return bfi_image_cb; + } + + return NULL; +} + +static void +bfad_free_fwimg(void) +{ + if (bfi_image_ct2_size && bfi_image_ct2) + vfree(bfi_image_ct2); + if (bfi_image_ct_size && bfi_image_ct) + vfree(bfi_image_ct); + if (bfi_image_cb_size && bfi_image_cb) + vfree(bfi_image_cb); +} + +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); |