| /* |
| * 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 fc_credit_recovery = BFA_TRUE; |
| int pcie_max_read_reqsz; |
| int bfa_debugfs_enable = 1; |
| int msix_disable_cb = 0, msix_disable_ct = 0; |
| |
| /* 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.bin" |
| #define BFAD_FW_FILE_CT "ctfw.bin" |
| #define BFAD_FW_FILE_CT2 "ct2fw.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(fc_credit_recovery, int, S_IRUGO | S_IWUSR); |
| MODULE_PARM_DESC(fc_credit_recovery, "Enables FC Credit Recovery, 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]"); |
| |
| 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_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_INTR_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); |
| bfad->bfad_flags |= BFAD_HAL_INIT_FAIL; |
| bfa_sm_send_event(bfad, BFAD_E_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) |
| break; |
| bfa_sm_set_state(bfad, bfad_sm_operational); |
| break; |
| |
| case BFAD_E_INTR_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_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: |
| if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE) |
| bfad_uncfg_pport(bfad); |
| if (bfad->bfad_flags & BFAD_FC4_PROBE_DONE) { |
| bfad_im_probe_undo(bfad); |
| bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE; |
| } |
| bfad_stop(bfad); |
| 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; |
| } |
| |
| void |
| bfa_fcb_lport_delete(struct bfad_s *bfad, enum bfa_lport_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 = (vp_drv) ? (&(vp_drv)->drv_port) : |
| ((vf_drv) ? (&(vf_drv)->base_port) : |
| (&(bfad)->pport)); |
| bfa_trc(bfad, roles); |
| if (roles & BFA_LPORT_ROLE_FCP_IM) |
| bfad_im_port_delete(bfad, 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_KERNEL); |
| 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) |
| { |
| 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: |
| WARN_ON(1); |
| 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) |
| { |
| int i; |
| struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo; |
| struct bfa_mem_elem_s *meminfo_elem; |
| dma_addr_t phys_addr; |
| void *kva; |
| bfa_status_t rc = BFA_STATUS_OK; |
| int retry_count = 0; |
| int reset_value = 1; |
| int min_num_sgpgs = 512; |
| |
| 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_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); |
| 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; |
| } |
| } |
| |
| 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 (pcie_max_read_reqsz > 0) { |
| int pcie_cap_reg; |
| u16 pcie_dev_ctl; |
| u16 mask = 0xffff; |
| |
| switch (pcie_max_read_reqsz) { |
| case 128: |
| mask = 0x0; |
| break; |
| case 256: |
| mask = 0x1000; |
| break; |
| case 512: |
| mask = 0x2000; |
| break; |
| case 1024: |
| mask = 0x3000; |
| break; |
| case 2048: |
| mask = 0x4000; |
| break; |
| case 4096: |
| mask = 0x5000; |
| break; |
| default: |
| break; |
| } |
| |
| pcie_cap_reg = pci_find_capability(pdev, PCI_CAP_ID_EXP); |
| if (mask != 0xffff && pcie_cap_reg) { |
| pcie_cap_reg += 0x08; |
| pci_read_config_word(pdev, pcie_cap_reg, &pcie_dev_ctl); |
| if ((pcie_dev_ctl & 0x7000) != mask) { |
| printk(KERN_WARNING "BFA[%s]: " |
| "pcie_max_read_request_size is %d, " |
| "reset to %d\n", bfad->pci_name, |
| (1 << ((pcie_dev_ctl & 0x7000) >> 12)) << 7, |
| pcie_max_read_reqsz); |
| |
| pcie_dev_ctl &= ~0x7000; |
| pci_write_config_word(pdev, pcie_cap_reg, |
| pcie_dev_ctl | mask); |
| } |
| } |
| } |
| |
| 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); |
| pci_disable_device(pdev); |
| pci_set_drvdata(pdev, NULL); |
| } |
| |
| 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"); |
| goto out_hal_mem_alloc_failure; |
| } |
| |
| 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; |
| bfad->bfa_fcs.bbscn_enabled = fc_credit_recovery; |
| bfa_fcs_init(&bfad->bfa_fcs); |
| spin_unlock_irqrestore(&bfad->bfad_lock, flags); |
| |
| bfad->bfad_flags |= BFAD_DRV_INIT_DONE; |
| |
| /* configure base port */ |
| rc = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM); |
| if (rc != BFA_STATUS_OK) |
| goto out_cfg_pport_fail; |
| |
| return BFA_STATUS_OK; |
| |
| out_cfg_pport_fail: |
| /* fcs exit - on cfg pport failure */ |
| 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 detach - free hal memory */ |
| 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) |
| { |
| 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; |
| |
| /* 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); |
| spin_unlock_irqrestore(&bfad->bfad_lock, flags); |
| |
| /* |
| * FCS update cfg - reset the pwwn/nwwn of fabric base logical port |
| * with values learned during bfa_init firmware GETATTR REQ. |
| */ |
| bfa_fcs_update_cfg(&bfad->bfa_fcs); |
| |
| /* 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); |
| bfad_im_probe_undo(bfad); |
| bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE; |
| bfad_uncfg_pport(bfad); |
| bfad_stop(bfad); |
| 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; |
| unsigned long flags; |
| |
| bfad = (struct bfad_s *)ptr; |
| |
| while (!kthread_should_stop()) { |
| |
| /* 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); |
| |
| break; |
| } |
| |
| 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]); |
| |
| return 1; |
| } |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * Setup MSIX based interrupt. |
| */ |
| int |
| bfad_setup_intr(struct bfad_s *bfad) |
| { |
| int error = 0; |
| 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(bfad->pcidev, msix_entries, bfad->nvec); |
| if (error) { |
| /* |
| * Only error number of vector is available. |
| * We don't have a mechanism to map multiple |
| * interrupts into one vector, so even if we |
| * can try to request less vectors, we don't |
| * know how to associate interrupt events to |
| * vectors. Linux doesn't duplicate vectors |
| * in the MSIX table for this case. |
| */ |
| |
| printk(KERN_WARNING "bfad%d: " |
| "pci_enable_msix 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 error; |
| } |
| |
| line_based: |
| error = 0; |
| if (request_irq |
| (bfad->pcidev->irq, (irq_handler_t) bfad_intx, BFAD_IRQ_FLAGS, |
| BFAD_DRIVER_NAME, bfad) != 0) { |
| /* Enable interrupt handler failed */ |
| return 1; |
| } |
| |
| return error; |
| } |
| |
| 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 { |
| 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; |
| |
| /* 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); |
| |
| 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); |
| pci_set_drvdata(pdev, bfad); |
| |
| bfad->ref_count = 0; |
| bfad->pport.bfad = bfad; |
| INIT_LIST_HEAD(&bfad->pbc_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: |
| bfa_detach(&bfad->bfa); |
| 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); |
| } |
| |
| 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, |
| }, |
| |
| {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), |
| }; |
| |
| /* |
| * 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); |
| |
| 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 (pdev->device == BFA_PCI_DEVICE_ID_CT2) { |
| 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 (bfi_image_cb_size == 0) |
| bfad_read_firmware(pdev, &bfi_image_cb, |
| &bfi_image_cb_size, BFAD_FW_FILE_CB); |
| return bfi_image_cb; |
| } |
| } |
| |
| 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); |