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linux/drivers/scsi/bfa/bfad.c

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/*
* Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
* All rights reserved
* www.brocade.com
*
* Linux driver for Brocade Fibre Channel Host Bus Adapter.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License (GPL) Version 2 as
* published by the Free Software Foundation
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
/**
* bfad.c Linux driver PCI interface module.
*/
#include <linux/module.h>
#include "bfad_drv.h"
#include "bfad_im.h"
#include "bfad_tm.h"
#include "bfad_ipfc.h"
#include "bfad_trcmod.h"
#include <fcb/bfa_fcb_vf.h>
#include <fcb/bfa_fcb_rport.h>
#include <fcb/bfa_fcb_port.h>
#include <fcb/bfa_fcb.h>
BFA_TRC_FILE(LDRV, BFAD);
static DEFINE_MUTEX(bfad_mutex);
LIST_HEAD(bfad_list);
static int bfad_inst;
int bfad_supported_fc4s;
static char *host_name;
static char *os_name;
static char *os_patch;
static int num_rports;
static int num_ios;
static int num_tms;
static int num_fcxps;
static int num_ufbufs;
static int reqq_size;
static int rspq_size;
static int num_sgpgs;
static int rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT;
static int bfa_io_max_sge = BFAD_IO_MAX_SGE;
static int log_level = BFA_LOG_WARNING;
static int ioc_auto_recover = BFA_TRUE;
static int ipfc_enable = BFA_FALSE;
static int ipfc_mtu = -1;
int bfa_lun_queue_depth = BFAD_LUN_QUEUE_DEPTH;
int bfa_linkup_delay = -1;
module_param(os_name, charp, S_IRUGO | S_IWUSR);
module_param(os_patch, charp, S_IRUGO | S_IWUSR);
module_param(host_name, charp, S_IRUGO | S_IWUSR);
module_param(num_rports, int, S_IRUGO | S_IWUSR);
module_param(num_ios, int, S_IRUGO | S_IWUSR);
module_param(num_tms, int, S_IRUGO | S_IWUSR);
module_param(num_fcxps, int, S_IRUGO | S_IWUSR);
module_param(num_ufbufs, int, S_IRUGO | S_IWUSR);
module_param(reqq_size, int, S_IRUGO | S_IWUSR);
module_param(rspq_size, int, S_IRUGO | S_IWUSR);
module_param(num_sgpgs, int, S_IRUGO | S_IWUSR);
module_param(rport_del_timeout, int, S_IRUGO | S_IWUSR);
module_param(bfa_lun_queue_depth, int, S_IRUGO | S_IWUSR);
module_param(bfa_io_max_sge, int, S_IRUGO | S_IWUSR);
module_param(log_level, int, S_IRUGO | S_IWUSR);
module_param(ioc_auto_recover, int, S_IRUGO | S_IWUSR);
module_param(ipfc_enable, int, S_IRUGO | S_IWUSR);
module_param(ipfc_mtu, int, S_IRUGO | S_IWUSR);
module_param(bfa_linkup_delay, int, S_IRUGO | S_IWUSR);
/*
* Stores the module parm num_sgpgs value;
* used to reset for bfad next instance.
*/
static int num_sgpgs_parm;
static bfa_status_t
bfad_fc4_probe(struct bfad_s *bfad)
{
int rc;
rc = bfad_im_probe(bfad);
if (rc != BFA_STATUS_OK)
goto ext;
bfad_tm_probe(bfad);
if (ipfc_enable)
bfad_ipfc_probe(bfad);
ext:
return rc;
}
static void
bfad_fc4_probe_undo(struct bfad_s *bfad)
{
bfad_im_probe_undo(bfad);
bfad_tm_probe_undo(bfad);
if (ipfc_enable)
bfad_ipfc_probe_undo(bfad);
}
static void
bfad_fc4_probe_post(struct bfad_s *bfad)
{
if (bfad->im)
bfad_im_probe_post(bfad->im);
bfad_tm_probe_post(bfad);
if (ipfc_enable)
bfad_ipfc_probe_post(bfad);
}
static bfa_status_t
bfad_fc4_port_new(struct bfad_s *bfad, struct bfad_port_s *port, int roles)
{
int rc = BFA_STATUS_FAILED;
if (roles & BFA_PORT_ROLE_FCP_IM)
rc = bfad_im_port_new(bfad, port);
if (rc != BFA_STATUS_OK)
goto ext;
if (roles & BFA_PORT_ROLE_FCP_TM)
rc = bfad_tm_port_new(bfad, port);
if (rc != BFA_STATUS_OK)
goto ext;
if ((roles & BFA_PORT_ROLE_FCP_IPFC) && ipfc_enable)
rc = bfad_ipfc_port_new(bfad, port, port->pvb_type);
ext:
return rc;
}
static void
bfad_fc4_port_delete(struct bfad_s *bfad, struct bfad_port_s *port, int roles)
{
if (roles & BFA_PORT_ROLE_FCP_IM)
bfad_im_port_delete(bfad, port);
if (roles & BFA_PORT_ROLE_FCP_TM)
bfad_tm_port_delete(bfad, port);
if ((roles & BFA_PORT_ROLE_FCP_IPFC) && ipfc_enable)
bfad_ipfc_port_delete(bfad, port);
}
/**
* BFA callbacks
*/
void
bfad_hcb_comp(void *arg, bfa_status_t status)
{
struct bfad_hal_comp *fcomp = (struct bfad_hal_comp *)arg;
fcomp->status = status;
complete(&fcomp->comp);
}
/**
* bfa_init callback
*/
void
bfa_cb_init(void *drv, bfa_status_t init_status)
{
struct bfad_s *bfad = drv;
if (init_status == BFA_STATUS_OK)
bfad->bfad_flags |= BFAD_HAL_INIT_DONE;
complete(&bfad->comp);
}
/**
* BFA_FCS callbacks
*/
static struct bfad_port_s *
bfad_get_drv_port(struct bfad_s *bfad, struct bfad_vf_s *vf_drv,
struct bfad_vport_s *vp_drv)
{
return ((vp_drv) ? (&(vp_drv)->drv_port)
: ((vf_drv) ? (&(vf_drv)->base_port) : (&(bfad)->pport)));
}
struct bfad_port_s *
bfa_fcb_port_new(struct bfad_s *bfad, struct bfa_fcs_port_s *port,
enum bfa_port_role roles, struct bfad_vf_s *vf_drv,
struct bfad_vport_s *vp_drv)
{
bfa_status_t rc;
struct bfad_port_s *port_drv;
if (!vp_drv && !vf_drv) {
port_drv = &bfad->pport;
port_drv->pvb_type = BFAD_PORT_PHYS_BASE;
} else if (!vp_drv && vf_drv) {
port_drv = &vf_drv->base_port;
port_drv->pvb_type = BFAD_PORT_VF_BASE;
} else if (vp_drv && !vf_drv) {
port_drv = &vp_drv->drv_port;
port_drv->pvb_type = BFAD_PORT_PHYS_VPORT;
} else {
port_drv = &vp_drv->drv_port;
port_drv->pvb_type = BFAD_PORT_VF_VPORT;
}
port_drv->fcs_port = port;
port_drv->roles = roles;
rc = bfad_fc4_port_new(bfad, port_drv, roles);
if (rc != BFA_STATUS_OK) {
bfad_fc4_port_delete(bfad, port_drv, roles);
port_drv = NULL;
}
return port_drv;
}
void
bfa_fcb_port_delete(struct bfad_s *bfad, enum bfa_port_role roles,
struct bfad_vf_s *vf_drv, struct bfad_vport_s *vp_drv)
{
struct bfad_port_s *port_drv;
/*
* this will be only called from rmmod context
*/
if (vp_drv && !vp_drv->comp_del) {
port_drv = bfad_get_drv_port(bfad, vf_drv, vp_drv);
bfa_trc(bfad, roles);
bfad_fc4_port_delete(bfad, port_drv, roles);
}
}
void
bfa_fcb_port_online(struct bfad_s *bfad, enum bfa_port_role roles,
struct bfad_vf_s *vf_drv, struct bfad_vport_s *vp_drv)
{
struct bfad_port_s *port_drv = bfad_get_drv_port(bfad, vf_drv, vp_drv);
if (roles & BFA_PORT_ROLE_FCP_IM)
bfad_im_port_online(bfad, port_drv);
if (roles & BFA_PORT_ROLE_FCP_TM)
bfad_tm_port_online(bfad, port_drv);
if ((roles & BFA_PORT_ROLE_FCP_IPFC) && ipfc_enable)
bfad_ipfc_port_online(bfad, port_drv);
bfad->bfad_flags |= BFAD_PORT_ONLINE;
}
void
bfa_fcb_port_offline(struct bfad_s *bfad, enum bfa_port_role roles,
struct bfad_vf_s *vf_drv, struct bfad_vport_s *vp_drv)
{
struct bfad_port_s *port_drv = bfad_get_drv_port(bfad, vf_drv, vp_drv);
if (roles & BFA_PORT_ROLE_FCP_IM)
bfad_im_port_offline(bfad, port_drv);
if (roles & BFA_PORT_ROLE_FCP_TM)
bfad_tm_port_offline(bfad, port_drv);
if ((roles & BFA_PORT_ROLE_FCP_IPFC) && ipfc_enable)
bfad_ipfc_port_offline(bfad, port_drv);
}
void
bfa_fcb_vport_delete(struct bfad_vport_s *vport_drv)
{
if (vport_drv->comp_del) {
complete(vport_drv->comp_del);
return;
}
kfree(vport_drv);
}
/**
* FCS RPORT alloc callback, after successful PLOGI by FCS
*/
bfa_status_t
bfa_fcb_rport_alloc(struct bfad_s *bfad, struct bfa_fcs_rport_s **rport,
struct bfad_rport_s **rport_drv)
{
bfa_status_t rc = BFA_STATUS_OK;
*rport_drv = kzalloc(sizeof(struct bfad_rport_s), GFP_ATOMIC);
if (*rport_drv == NULL) {
rc = BFA_STATUS_ENOMEM;
goto ext;
}
*rport = &(*rport_drv)->fcs_rport;
ext:
return rc;
}
void
bfad_hal_mem_release(struct bfad_s *bfad)
{
int i;
struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo;
struct bfa_mem_elem_s *meminfo_elem;
for (i = 0; i < BFA_MEM_TYPE_MAX; i++) {
meminfo_elem = &hal_meminfo->meminfo[i];
if (meminfo_elem->kva != NULL) {
switch (meminfo_elem->mem_type) {
case BFA_MEM_TYPE_KVA:
vfree(meminfo_elem->kva);
break;
case BFA_MEM_TYPE_DMA:
dma_free_coherent(&bfad->pcidev->dev,
meminfo_elem->mem_len,
meminfo_elem->kva,
(dma_addr_t) meminfo_elem->dma);
break;
default:
bfa_assert(0);
break;
}
}
}
memset(hal_meminfo, 0, sizeof(struct bfa_meminfo_s));
}
void
bfad_update_hal_cfg(struct bfa_iocfc_cfg_s *bfa_cfg)
{
if (num_rports > 0)
bfa_cfg->fwcfg.num_rports = num_rports;
if (num_ios > 0)
bfa_cfg->fwcfg.num_ioim_reqs = num_ios;
if (num_tms > 0)
bfa_cfg->fwcfg.num_tskim_reqs = num_tms;
if (num_fcxps > 0)
bfa_cfg->fwcfg.num_fcxp_reqs = num_fcxps;
if (num_ufbufs > 0)
bfa_cfg->fwcfg.num_uf_bufs = num_ufbufs;
if (reqq_size > 0)
bfa_cfg->drvcfg.num_reqq_elems = reqq_size;
if (rspq_size > 0)
bfa_cfg->drvcfg.num_rspq_elems = rspq_size;
if (num_sgpgs > 0)
bfa_cfg->drvcfg.num_sgpgs = num_sgpgs;
/*
* populate the hal values back to the driver for sysfs use.
* otherwise, the default values will be shown as 0 in sysfs
*/
num_rports = bfa_cfg->fwcfg.num_rports;
num_ios = bfa_cfg->fwcfg.num_ioim_reqs;
num_tms = bfa_cfg->fwcfg.num_tskim_reqs;
num_fcxps = bfa_cfg->fwcfg.num_fcxp_reqs;
num_ufbufs = bfa_cfg->fwcfg.num_uf_bufs;
reqq_size = bfa_cfg->drvcfg.num_reqq_elems;
rspq_size = bfa_cfg->drvcfg.num_rspq_elems;
num_sgpgs = bfa_cfg->drvcfg.num_sgpgs;
}
bfa_status_t
bfad_hal_mem_alloc(struct bfad_s *bfad)
{
struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo;
struct bfa_mem_elem_s *meminfo_elem;
bfa_status_t rc = BFA_STATUS_OK;
dma_addr_t phys_addr;
int retry_count = 0;
int reset_value = 1;
int min_num_sgpgs = 512;
void *kva;
int i;
bfa_cfg_get_default(&bfad->ioc_cfg);
retry:
bfad_update_hal_cfg(&bfad->ioc_cfg);
bfad->cfg_data.ioc_queue_depth = bfad->ioc_cfg.fwcfg.num_ioim_reqs;
bfa_cfg_get_meminfo(&bfad->ioc_cfg, hal_meminfo);
for (i = 0; i < BFA_MEM_TYPE_MAX; i++) {
meminfo_elem = &hal_meminfo->meminfo[i];
switch (meminfo_elem->mem_type) {
case BFA_MEM_TYPE_KVA:
kva = vmalloc(meminfo_elem->mem_len);
if (kva == NULL) {
bfad_hal_mem_release(bfad);
rc = BFA_STATUS_ENOMEM;
goto ext;
}
memset(kva, 0, meminfo_elem->mem_len);
meminfo_elem->kva = kva;
break;
case BFA_MEM_TYPE_DMA:
kva = dma_alloc_coherent(&bfad->pcidev->dev,
meminfo_elem->mem_len,
&phys_addr, GFP_KERNEL);
if (kva == NULL) {
bfad_hal_mem_release(bfad);
/*
* If we cannot allocate with default
* num_sgpages try with half the value.
*/
if (num_sgpgs > min_num_sgpgs) {
printk(KERN_INFO "bfad[%d]: memory"
" allocation failed with"
" num_sgpgs: %d\n",
bfad->inst_no, num_sgpgs);
nextLowerInt(&num_sgpgs);
printk(KERN_INFO "bfad[%d]: trying to"
" allocate memory with"
" num_sgpgs: %d\n",
bfad->inst_no, num_sgpgs);
retry_count++;
goto retry;
} else {
if (num_sgpgs_parm > 0)
num_sgpgs = num_sgpgs_parm;
else {
reset_value =
(1 << retry_count);
num_sgpgs *= reset_value;
}
rc = BFA_STATUS_ENOMEM;
goto ext;
}
}
if (num_sgpgs_parm > 0)
num_sgpgs = num_sgpgs_parm;
else {
reset_value = (1 << retry_count);
num_sgpgs *= reset_value;
}
memset(kva, 0, meminfo_elem->mem_len);
meminfo_elem->kva = kva;
meminfo_elem->dma = phys_addr;
break;
default:
break;
}
}
ext:
return rc;
}
/**
* Create a vport under a vf.
*/
bfa_status_t
bfad_vport_create(struct bfad_s *bfad, u16 vf_id,
struct bfa_port_cfg_s *port_cfg)
{
struct bfad_vport_s *vport;
int rc = BFA_STATUS_OK;
unsigned long flags;
struct completion fcomp;
vport = kzalloc(sizeof(struct bfad_vport_s), GFP_KERNEL);
if (!vport) {
rc = BFA_STATUS_ENOMEM;
goto ext;
}
vport->drv_port.bfad = bfad;
spin_lock_irqsave(&bfad->bfad_lock, flags);
rc = bfa_fcs_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, vf_id,
port_cfg, vport);
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
if (rc != BFA_STATUS_OK)
goto ext_free_vport;
if (port_cfg->roles & BFA_PORT_ROLE_FCP_IM) {
rc = bfad_im_scsi_host_alloc(bfad, vport->drv_port.im_port);
if (rc != BFA_STATUS_OK)
goto ext_free_fcs_vport;
}
spin_lock_irqsave(&bfad->bfad_lock, flags);
bfa_fcs_vport_start(&vport->fcs_vport);
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
return BFA_STATUS_OK;
ext_free_fcs_vport:
spin_lock_irqsave(&bfad->bfad_lock, flags);
vport->comp_del = &fcomp;
init_completion(vport->comp_del);
bfa_fcs_vport_delete(&vport->fcs_vport);
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
wait_for_completion(vport->comp_del);
ext_free_vport:
kfree(vport);
ext:
return rc;
}
/**
* Create a vf and its base vport implicitely.
*/
bfa_status_t
bfad_vf_create(struct bfad_s *bfad, u16 vf_id,
struct bfa_port_cfg_s *port_cfg)
{
struct bfad_vf_s *vf;
int rc = BFA_STATUS_OK;
vf = kzalloc(sizeof(struct bfad_vf_s), GFP_KERNEL);
if (!vf) {
rc = BFA_STATUS_FAILED;
goto ext;
}
rc = bfa_fcs_vf_create(&vf->fcs_vf, &bfad->bfa_fcs, vf_id, port_cfg,
vf);
if (rc != BFA_STATUS_OK)
kfree(vf);
ext:
return rc;
}
void
bfad_bfa_tmo(unsigned long data)
{
struct bfad_s *bfad = (struct bfad_s *)data;
unsigned long flags;
struct list_head doneq;
spin_lock_irqsave(&bfad->bfad_lock, flags);
bfa_timer_tick(&bfad->bfa);
bfa_comp_deq(&bfad->bfa, &doneq);
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
if (!list_empty(&doneq)) {
bfa_comp_process(&bfad->bfa, &doneq);
spin_lock_irqsave(&bfad->bfad_lock, flags);
bfa_comp_free(&bfad->bfa, &doneq);
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
}
mod_timer(&bfad->hal_tmo, jiffies + msecs_to_jiffies(BFA_TIMER_FREQ));
}
void
bfad_init_timer(struct bfad_s *bfad)
{
init_timer(&bfad->hal_tmo);
bfad->hal_tmo.function = bfad_bfa_tmo;
bfad->hal_tmo.data = (unsigned long)bfad;
mod_timer(&bfad->hal_tmo, jiffies + msecs_to_jiffies(BFA_TIMER_FREQ));
}
int
bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad)
{
unsigned long bar0_len;
int rc = -ENODEV;
if (pci_enable_device(pdev)) {
BFA_PRINTF(BFA_ERR, "pci_enable_device fail %p\n", pdev);
goto out;
}
if (pci_request_regions(pdev, BFAD_DRIVER_NAME))
goto out_disable_device;
pci_set_master(pdev);
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) {
BFA_PRINTF(BFA_ERR, "pci_set_dma_mask fail %p\n", pdev);
goto out_release_region;
}
bfad->pci_bar0_map = pci_resource_start(pdev, 0);
bar0_len = pci_resource_len(pdev, 0);
bfad->pci_bar0_kva = ioremap(bfad->pci_bar0_map, bar0_len);
if (bfad->pci_bar0_kva == NULL) {
BFA_PRINTF(BFA_ERR, "Fail to map bar0\n");
goto out_release_region;
}
bfad->hal_pcidev.pci_slot = PCI_SLOT(pdev->devfn);
bfad->hal_pcidev.pci_func = PCI_FUNC(pdev->devfn);
bfad->hal_pcidev.pci_bar_kva = bfad->pci_bar0_kva;
bfad->hal_pcidev.device_id = pdev->device;
bfad->pci_name = pci_name(pdev);
bfad->pci_attr.vendor_id = pdev->vendor;
bfad->pci_attr.device_id = pdev->device;
bfad->pci_attr.ssid = pdev->subsystem_device;
bfad->pci_attr.ssvid = pdev->subsystem_vendor;
bfad->pci_attr.pcifn = PCI_FUNC(pdev->devfn);
bfad->pcidev = pdev;
return 0;
out_release_region:
pci_release_regions(pdev);
out_disable_device:
pci_disable_device(pdev);
out:
return rc;
}
void
bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad)
{
#if defined(__ia64__)
pci_iounmap(pdev, bfad->pci_bar0_kva);
#else
iounmap(bfad->pci_bar0_kva);
#endif
pci_release_regions(pdev);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
}
void
bfad_fcs_port_cfg(struct bfad_s *bfad)
{
struct bfa_port_cfg_s port_cfg;
struct bfa_pport_attr_s attr;
char symname[BFA_SYMNAME_MAXLEN];
sprintf(symname, "%s-%d", BFAD_DRIVER_NAME, bfad->inst_no);
memcpy(port_cfg.sym_name.symname, symname, strlen(symname));
bfa_pport_get_attr(&bfad->bfa, &attr);
port_cfg.nwwn = attr.nwwn;
port_cfg.pwwn = attr.pwwn;
bfa_fcs_cfg_base_port(&bfad->bfa_fcs, &port_cfg);
}
bfa_status_t
bfad_drv_init(struct bfad_s *bfad)
{
bfa_status_t rc;
unsigned long flags;
struct bfa_fcs_driver_info_s driver_info;
int i;
bfad->cfg_data.rport_del_timeout = rport_del_timeout;
bfad->cfg_data.lun_queue_depth = bfa_lun_queue_depth;
bfad->cfg_data.io_max_sge = bfa_io_max_sge;
bfad->cfg_data.binding_method = FCP_PWWN_BINDING;
rc = bfad_hal_mem_alloc(bfad);
if (rc != BFA_STATUS_OK) {
printk(KERN_WARNING "bfad%d bfad_hal_mem_alloc failure\n",
bfad->inst_no);
printk(KERN_WARNING
"Not enough memory to attach all Brocade HBA ports,"
" System may need more memory.\n");
goto out_hal_mem_alloc_failure;
}
bfa_init_log(&bfad->bfa, bfad->logmod);
bfa_init_trc(&bfad->bfa, bfad->trcmod);
bfa_init_aen(&bfad->bfa, bfad->aen);
INIT_LIST_HEAD(&bfad->file_q);
INIT_LIST_HEAD(&bfad->file_free_q);
for (i = 0; i < BFAD_AEN_MAX_APPS; i++) {
bfa_q_qe_init(&bfad->file_buf[i].qe);
list_add_tail(&bfad->file_buf[i].qe, &bfad->file_free_q);
}
bfa_init_plog(&bfad->bfa, &bfad->plog_buf);
bfa_plog_init(&bfad->plog_buf);
bfa_plog_str(&bfad->plog_buf, BFA_PL_MID_DRVR, BFA_PL_EID_DRIVER_START,
0, "Driver Attach");
bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, &bfad->meminfo,
&bfad->hal_pcidev);
init_completion(&bfad->comp);
/*
* Enable Interrupt and wait bfa_init completion
*/
if (bfad_setup_intr(bfad)) {
printk(KERN_WARNING "bfad%d: bfad_setup_intr failed\n",
bfad->inst_no);
goto out_setup_intr_failure;
}
spin_lock_irqsave(&bfad->bfad_lock, flags);
bfa_init(&bfad->bfa);
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
/*
* Set up interrupt handler for each vectors
*/
if ((bfad->bfad_flags & BFAD_MSIX_ON)
&& bfad_install_msix_handler(bfad)) {
printk(KERN_WARNING "%s: install_msix failed, bfad%d\n",
__FUNCTION__, bfad->inst_no);
}
bfad_init_timer(bfad);
wait_for_completion(&bfad->comp);
memset(&driver_info, 0, sizeof(driver_info));
strncpy(driver_info.version, BFAD_DRIVER_VERSION,
sizeof(driver_info.version) - 1);
if (host_name)
strncpy(driver_info.host_machine_name, host_name,
sizeof(driver_info.host_machine_name) - 1);
if (os_name)
strncpy(driver_info.host_os_name, os_name,
sizeof(driver_info.host_os_name) - 1);
if (os_patch)
strncpy(driver_info.host_os_patch, os_patch,
sizeof(driver_info.host_os_patch) - 1);
strncpy(driver_info.os_device_name, bfad->pci_name,
sizeof(driver_info.os_device_name - 1));
/*
* FCS INIT
*/
spin_lock_irqsave(&bfad->bfad_lock, flags);
bfa_fcs_log_init(&bfad->bfa_fcs, bfad->logmod);
bfa_fcs_trc_init(&bfad->bfa_fcs, bfad->trcmod);
bfa_fcs_aen_init(&bfad->bfa_fcs, bfad->aen);
bfa_fcs_init(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE);
bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info);
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
bfad->bfad_flags |= BFAD_DRV_INIT_DONE;
return BFA_STATUS_OK;
out_setup_intr_failure:
bfa_detach(&bfad->bfa);
bfad_hal_mem_release(bfad);
out_hal_mem_alloc_failure:
return BFA_STATUS_FAILED;
}
void
bfad_drv_uninit(struct bfad_s *bfad)
{
del_timer_sync(&bfad->hal_tmo);
bfa_isr_disable(&bfad->bfa);
bfa_detach(&bfad->bfa);
bfad_remove_intr(bfad);
bfa_assert(list_empty(&bfad->file_q));
bfad_hal_mem_release(bfad);
}
void
bfad_drv_start(struct bfad_s *bfad)
{
unsigned long flags;
spin_lock_irqsave(&bfad->bfad_lock, flags);
bfa_start(&bfad->bfa);
bfa_fcs_start(&bfad->bfa_fcs);
bfad->bfad_flags |= BFAD_HAL_START_DONE;
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
bfad_fc4_probe_post(bfad);
}
void
bfad_drv_stop(struct bfad_s *bfad)
{
unsigned long flags;
spin_lock_irqsave(&bfad->bfad_lock, flags);
init_completion(&bfad->comp);
bfad->pport.flags |= BFAD_PORT_DELETE;
bfa_fcs_exit(&bfad->bfa_fcs);
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
wait_for_completion(&bfad->comp);
spin_lock_irqsave(&bfad->bfad_lock, flags);
init_completion(&bfad->comp);
bfa_stop(&bfad->bfa);
bfad->bfad_flags &= ~BFAD_HAL_START_DONE;
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
wait_for_completion(&bfad->comp);
}
bfa_status_t
bfad_cfg_pport(struct bfad_s *bfad, enum bfa_port_role role)
{
int rc = BFA_STATUS_OK;
/*
* Allocate scsi_host for the physical port
*/
if ((bfad_supported_fc4s & BFA_PORT_ROLE_FCP_IM)
&& (role & BFA_PORT_ROLE_FCP_IM)) {
if (bfad->pport.im_port == NULL) {
rc = BFA_STATUS_FAILED;
goto out;
}
rc = bfad_im_scsi_host_alloc(bfad, bfad->pport.im_port);
if (rc != BFA_STATUS_OK)
goto out;
bfad->pport.roles |= BFA_PORT_ROLE_FCP_IM;
}
bfad->bfad_flags |= BFAD_CFG_PPORT_DONE;
out:
return rc;
}
void
bfad_uncfg_pport(struct bfad_s *bfad)
{
if ((bfad->pport.roles & BFA_PORT_ROLE_FCP_IPFC) && ipfc_enable) {
bfad_ipfc_port_delete(bfad, &bfad->pport);
bfad->pport.roles &= ~BFA_PORT_ROLE_FCP_IPFC;
}
if ((bfad_supported_fc4s & BFA_PORT_ROLE_FCP_IM)
&& (bfad->pport.roles & BFA_PORT_ROLE_FCP_IM)) {
bfad_im_scsi_host_free(bfad, bfad->pport.im_port);
bfad_im_port_clean(bfad->pport.im_port);
kfree(bfad->pport.im_port);
bfad->pport.roles &= ~BFA_PORT_ROLE_FCP_IM;
}
bfad->bfad_flags &= ~BFAD_CFG_PPORT_DONE;
}
void
bfad_drv_log_level_set(struct bfad_s *bfad)
{
if (log_level > BFA_LOG_INVALID && log_level <= BFA_LOG_LEVEL_MAX)
bfa_log_set_level_all(&bfad->log_data, log_level);
}
/*
* PCI_entry PCI driver entries * {
*/
/**
* PCI probe entry.
*/
int
bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid)
{
struct bfad_s *bfad;
int error = -ENODEV, retval;
char buf[16];
/*
* For single port cards - only claim function 0
*/
if ((pdev->device == BFA_PCI_DEVICE_ID_FC_8G1P)
&& (PCI_FUNC(pdev->devfn) != 0))
return -ENODEV;
BFA_TRACE(BFA_INFO, "bfad_pci_probe entry");
bfad = kzalloc(sizeof(struct bfad_s), GFP_KERNEL);
if (!bfad) {
error = -ENOMEM;
goto out;
}
bfad->trcmod = kzalloc(sizeof(struct bfa_trc_mod_s), GFP_KERNEL);
if (!bfad->trcmod) {
printk(KERN_WARNING "Error alloc trace buffer!\n");
error = -ENOMEM;
goto out_alloc_trace_failure;
}
/*
* LOG/TRACE INIT
*/
bfa_trc_init(bfad->trcmod);
bfa_trc(bfad, bfad_inst);
bfad->logmod = &bfad->log_data;
sprintf(buf, "%d", bfad_inst);
bfa_log_init(bfad->logmod, buf, bfa_os_printf);
bfad_drv_log_level_set(bfad);
bfad->aen = &bfad->aen_buf;
if (!(bfad_load_fwimg(pdev))) {
printk(KERN_WARNING "bfad_load_fwimg failure!\n");
kfree(bfad->trcmod);
goto out_alloc_trace_failure;
}
retval = bfad_pci_init(pdev, bfad);
if (retval) {
printk(KERN_WARNING "bfad_pci_init failure!\n");
error = retval;
goto out_pci_init_failure;
}
mutex_lock(&bfad_mutex);
bfad->inst_no = bfad_inst++;
list_add_tail(&bfad->list_entry, &bfad_list);
mutex_unlock(&bfad_mutex);
spin_lock_init(&bfad->bfad_lock);
pci_set_drvdata(pdev, bfad);
bfad->ref_count = 0;
bfad->pport.bfad = bfad;
retval = bfad_drv_init(bfad);
if (retval != BFA_STATUS_OK)
goto out_drv_init_failure;
if (!(bfad->bfad_flags & BFAD_HAL_INIT_DONE)) {
printk(KERN_WARNING "bfad%d: hal init failed\n", bfad->inst_no);
goto ok;
}
/*
* PPORT FCS config
*/
bfad_fcs_port_cfg(bfad);
retval = bfad_cfg_pport(bfad, BFA_PORT_ROLE_FCP_IM);
if (retval != BFA_STATUS_OK)
goto out_cfg_pport_failure;
/*
* BFAD level FC4 (IM/TM/IPFC) specific resource allocation
*/
retval = bfad_fc4_probe(bfad);
if (retval != BFA_STATUS_OK) {
printk(KERN_WARNING "bfad_fc4_probe failed\n");
goto out_fc4_probe_failure;
}
bfad_drv_start(bfad);
/*
* If bfa_linkup_delay is set to -1 default; try to retrive the
* value using the bfad_os_get_linkup_delay(); else use the
* passed in module param value as the bfa_linkup_delay.
*/
if (bfa_linkup_delay < 0) {
bfa_linkup_delay = bfad_os_get_linkup_delay(bfad);
bfad_os_rport_online_wait(bfad);
bfa_linkup_delay = -1;
} else {
bfad_os_rport_online_wait(bfad);
}
bfa_log(bfad->logmod, BFA_LOG_LINUX_DEVICE_CLAIMED, bfad->pci_name);
ok:
return 0;
out_fc4_probe_failure:
bfad_fc4_probe_undo(bfad);
bfad_uncfg_pport(bfad);
out_cfg_pport_failure:
bfad_drv_uninit(bfad);
out_drv_init_failure:
mutex_lock(&bfad_mutex);
bfad_inst--;
list_del(&bfad->list_entry);
mutex_unlock(&bfad_mutex);
bfad_pci_uninit(pdev, bfad);
out_pci_init_failure:
kfree(bfad->trcmod);
out_alloc_trace_failure:
kfree(bfad);
out:
return error;
}
/**
* PCI remove entry.
*/
void
bfad_pci_remove(struct pci_dev *pdev)
{
struct bfad_s *bfad = pci_get_drvdata(pdev);
unsigned long flags;
bfa_trc(bfad, bfad->inst_no);
if ((bfad->bfad_flags & BFAD_DRV_INIT_DONE)
&& !(bfad->bfad_flags & BFAD_HAL_INIT_DONE)) {
spin_lock_irqsave(&bfad->bfad_lock, flags);
init_completion(&bfad->comp);
bfa_stop(&bfad->bfa);
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
wait_for_completion(&bfad->comp);
bfad_remove_intr(bfad);
del_timer_sync(&bfad->hal_tmo);
goto hal_detach;
} else if (!(bfad->bfad_flags & BFAD_DRV_INIT_DONE)) {
goto remove_sysfs;
}
if (bfad->bfad_flags & BFAD_HAL_START_DONE)
bfad_drv_stop(bfad);
bfad_remove_intr(bfad);
del_timer_sync(&bfad->hal_tmo);
bfad_fc4_probe_undo(bfad);
if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE)
bfad_uncfg_pport(bfad);
hal_detach:
spin_lock_irqsave(&bfad->bfad_lock, flags);
bfa_detach(&bfad->bfa);
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
bfad_hal_mem_release(bfad);
remove_sysfs:
mutex_lock(&bfad_mutex);
bfad_inst--;
list_del(&bfad->list_entry);
mutex_unlock(&bfad_mutex);
bfad_pci_uninit(pdev, bfad);
kfree(bfad->trcmod);
kfree(bfad);
}
static struct pci_device_id bfad_id_table[] = {
{
.vendor = BFA_PCI_VENDOR_ID_BROCADE,
.device = BFA_PCI_DEVICE_ID_FC_8G2P,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
},
{
.vendor = BFA_PCI_VENDOR_ID_BROCADE,
.device = BFA_PCI_DEVICE_ID_FC_8G1P,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
},
{
.vendor = BFA_PCI_VENDOR_ID_BROCADE,
.device = BFA_PCI_DEVICE_ID_CT,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.class = (PCI_CLASS_SERIAL_FIBER << 8),
.class_mask = ~0,
},
{0, 0},
};
MODULE_DEVICE_TABLE(pci, bfad_id_table);
static struct pci_driver bfad_pci_driver = {
.name = BFAD_DRIVER_NAME,
.id_table = bfad_id_table,
.probe = bfad_pci_probe,
.remove = __devexit_p(bfad_pci_remove),
};
/**
* Linux driver module functions
*/
bfa_status_t
bfad_fc4_module_init(void)
{
int rc;
rc = bfad_im_module_init();
if (rc != BFA_STATUS_OK)
goto ext;
bfad_tm_module_init();
if (ipfc_enable)
bfad_ipfc_module_init();
ext:
return rc;
}
void
bfad_fc4_module_exit(void)
{
if (ipfc_enable)
bfad_ipfc_module_exit();
bfad_tm_module_exit();
bfad_im_module_exit();
}
/**
* Driver module init.
*/
static int __init
bfad_init(void)
{
int error = 0;
printk(KERN_INFO "Brocade BFA FC/FCOE SCSI driver - version: %s\n",
BFAD_DRIVER_VERSION);
if (num_sgpgs > 0)
num_sgpgs_parm = num_sgpgs;
error = bfad_fc4_module_init();
if (error) {
error = -ENOMEM;
printk(KERN_WARNING "bfad_fc4_module_init failure\n");
goto ext;
}
if (!strcmp(FCPI_NAME, " fcpim"))
bfad_supported_fc4s |= BFA_PORT_ROLE_FCP_IM;
if (!strcmp(FCPT_NAME, " fcptm"))
bfad_supported_fc4s |= BFA_PORT_ROLE_FCP_TM;
if (!strcmp(IPFC_NAME, " ipfc"))
bfad_supported_fc4s |= BFA_PORT_ROLE_FCP_IPFC;
bfa_ioc_auto_recover(ioc_auto_recover);
bfa_fcs_rport_set_del_timeout(rport_del_timeout);
error = pci_register_driver(&bfad_pci_driver);
if (error) {
printk(KERN_WARNING "bfad pci_register_driver failure\n");
goto ext;
}
return 0;
ext:
bfad_fc4_module_exit();
return error;
}
/**
* Driver module exit.
*/
static void __exit
bfad_exit(void)
{
pci_unregister_driver(&bfad_pci_driver);
bfad_fc4_module_exit();
bfad_free_fwimg();
}
#define BFAD_PROTO_NAME FCPI_NAME FCPT_NAME IPFC_NAME
module_init(bfad_init);
module_exit(bfad_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Brocade Fibre Channel HBA Driver" BFAD_PROTO_NAME);
MODULE_AUTHOR("Brocade Communications Systems, Inc.");
MODULE_VERSION(BFAD_DRIVER_VERSION);
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