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https://github.com/edk2-porting/linux-next.git
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c54d557c3f
This patch fixes 3 bugs in vport create/delete. 1) Replace scsi_add_host() with scsi_add_host_with_dma() 2) Fix rmmod hang when there are vports configured. This is due to a race condition between the workqueue destroy in pci remove context and the vport delete works being handled. The fix is to use a counter to track the vport delete work, so that workqueue destroy will not be called until all configured vports are deleted from workqueue. 3) Fix rmmmod crash when there are PBC vport configured. PBC is not allowed to be deleted dynamically. However, if someone try to delete it, it leaves the vport is wrong state. The fix is to restore the vport back to original state when the attempt to delete pbc vport delete is failed. Signed-off-by: Jing Huang <huangj@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
295 lines
7.9 KiB
C
295 lines
7.9 KiB
C
/*
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* Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
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* All rights reserved
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* www.brocade.com
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*
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* Linux driver for Brocade Fibre Channel Host Bus Adapter.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License (GPL) Version 2 as
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* published by the Free Software Foundation
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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/**
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* Contains base driver definitions.
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*/
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/**
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* bfa_drv.h Linux driver data structures.
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*/
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#ifndef __BFAD_DRV_H__
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#define __BFAD_DRV_H__
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#include "bfa_os_inc.h"
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#include <bfa.h>
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#include <bfa_svc.h>
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#include <fcs/bfa_fcs.h>
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#include <defs/bfa_defs_pci.h>
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#include <defs/bfa_defs_port.h>
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#include <defs/bfa_defs_rport.h>
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#include <fcs/bfa_fcs_rport.h>
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#include <defs/bfa_defs_vport.h>
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#include <fcs/bfa_fcs_vport.h>
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#include <cs/bfa_plog.h>
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#include "aen/bfa_aen.h"
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#include <log/bfa_log_linux.h>
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#define BFAD_DRIVER_NAME "bfa"
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#ifdef BFA_DRIVER_VERSION
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#define BFAD_DRIVER_VERSION BFA_DRIVER_VERSION
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#else
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#define BFAD_DRIVER_VERSION "2.1.2.1"
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#endif
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#define BFAD_IRQ_FLAGS IRQF_SHARED
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/*
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* BFAD flags
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*/
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#define BFAD_MSIX_ON 0x00000001
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#define BFAD_HAL_INIT_DONE 0x00000002
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#define BFAD_DRV_INIT_DONE 0x00000004
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#define BFAD_CFG_PPORT_DONE 0x00000008
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#define BFAD_HAL_START_DONE 0x00000010
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#define BFAD_PORT_ONLINE 0x00000020
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#define BFAD_RPORT_ONLINE 0x00000040
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#define BFAD_FCS_INIT_DONE 0x00000080
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#define BFAD_HAL_INIT_FAIL 0x00000100
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#define BFAD_FC4_PROBE_DONE 0x00000200
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#define BFAD_PORT_DELETE 0x00000001
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/*
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* BFAD related definition
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*/
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#define SCSI_SCAN_DELAY HZ
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#define BFAD_STOP_TIMEOUT 30
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#define BFAD_SUSPEND_TIMEOUT BFAD_STOP_TIMEOUT
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/*
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* BFAD configuration parameter default values
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*/
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#define BFAD_LUN_QUEUE_DEPTH 32
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#define BFAD_IO_MAX_SGE SG_ALL
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#define bfad_isr_t irq_handler_t
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#define MAX_MSIX_ENTRY 22
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struct bfad_msix_s {
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struct bfad_s *bfad;
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struct msix_entry msix;
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};
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enum bfad_port_pvb_type {
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BFAD_PORT_PHYS_BASE = 0,
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BFAD_PORT_PHYS_VPORT = 1,
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BFAD_PORT_VF_BASE = 2,
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BFAD_PORT_VF_VPORT = 3,
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};
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/*
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* PORT data structure
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*/
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struct bfad_port_s {
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struct list_head list_entry;
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struct bfad_s *bfad;
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struct bfa_fcs_port_s *fcs_port;
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u32 roles;
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s32 flags;
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u32 supported_fc4s;
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u8 ipfc_flags;
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enum bfad_port_pvb_type pvb_type;
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struct bfad_im_port_s *im_port; /* IM specific data */
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struct bfad_tm_port_s *tm_port; /* TM specific data */
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struct bfad_ipfc_port_s *ipfc_port; /* IPFC specific data */
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};
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/*
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* VPORT data structure
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*/
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struct bfad_vport_s {
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struct bfad_port_s drv_port;
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struct bfa_fcs_vport_s fcs_vport;
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struct completion *comp_del;
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struct list_head list_entry;
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struct bfa_port_cfg_s port_cfg;
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};
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/*
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* VF data structure
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*/
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struct bfad_vf_s {
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bfa_fcs_vf_t fcs_vf;
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struct bfad_port_s base_port; /* base port for vf */
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struct bfad_s *bfad;
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};
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struct bfad_cfg_param_s {
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u32 rport_del_timeout;
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u32 ioc_queue_depth;
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u32 lun_queue_depth;
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u32 io_max_sge;
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u32 binding_method;
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};
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/*
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* BFAD (PCI function) data structure
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*/
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struct bfad_s {
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struct list_head list_entry;
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struct bfa_s bfa;
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struct bfa_fcs_s bfa_fcs;
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struct pci_dev *pcidev;
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const char *pci_name;
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struct bfa_pcidev_s hal_pcidev;
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struct bfa_ioc_pci_attr_s pci_attr;
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void __iomem *pci_bar0_kva;
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struct completion comp;
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struct completion suspend;
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struct completion disable_comp;
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bfa_boolean_t disable_active;
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struct bfad_port_s pport; /* physical port of the BFAD */
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struct bfa_meminfo_s meminfo;
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struct bfa_iocfc_cfg_s ioc_cfg;
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u32 inst_no; /* BFAD instance number */
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u32 bfad_flags;
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spinlock_t bfad_lock;
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struct task_struct *bfad_tsk;
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struct bfad_cfg_param_s cfg_data;
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struct bfad_msix_s msix_tab[MAX_MSIX_ENTRY];
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int nvec;
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char adapter_name[BFA_ADAPTER_SYM_NAME_LEN];
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char port_name[BFA_ADAPTER_SYM_NAME_LEN];
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struct timer_list hal_tmo;
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unsigned long hs_start;
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struct bfad_im_s *im; /* IM specific data */
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struct bfad_tm_s *tm; /* TM specific data */
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struct bfad_ipfc_s *ipfc; /* IPFC specific data */
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struct bfa_log_mod_s log_data;
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struct bfa_trc_mod_s *trcmod;
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struct bfa_log_mod_s *logmod;
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struct bfa_aen_s *aen;
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struct bfa_aen_s aen_buf;
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void *file_map[BFA_AEN_MAX_APP];
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struct bfa_plog_s plog_buf;
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int ref_count;
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bfa_boolean_t ipfc_enabled;
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struct fc_host_statistics link_stats;
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struct list_head pbc_pcfg_list;
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atomic_t wq_reqcnt;
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};
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struct bfad_pcfg_s {
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struct list_head list_entry;
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struct bfa_port_cfg_s port_cfg;
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};
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/*
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* RPORT data structure
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*/
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struct bfad_rport_s {
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struct bfa_fcs_rport_s fcs_rport;
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};
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struct bfad_buf_info {
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void *virt;
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dma_addr_t phys;
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u32 size;
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};
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struct bfad_fcxp {
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struct bfad_port_s *port;
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struct bfa_rport_s *bfa_rport;
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bfa_status_t req_status;
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u16 tag;
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u16 rsp_len;
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u16 rsp_maxlen;
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u8 use_ireqbuf;
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u8 use_irspbuf;
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u32 num_req_sgles;
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u32 num_rsp_sgles;
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struct fchs_s fchs;
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void *reqbuf_info;
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void *rspbuf_info;
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struct bfa_sge_s *req_sge;
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struct bfa_sge_s *rsp_sge;
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fcxp_send_cb_t send_cbfn;
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void *send_cbarg;
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void *bfa_fcxp;
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struct completion comp;
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};
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struct bfad_hal_comp {
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bfa_status_t status;
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struct completion comp;
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};
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/*
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* Macro to obtain the immediate lower power
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* of two for the integer.
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*/
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#define nextLowerInt(x) \
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do { \
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int j; \
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(*x)--; \
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for (j = 1; j < (sizeof(int) * 8); j <<= 1) \
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(*x) = (*x) | (*x) >> j; \
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(*x)++; \
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(*x) = (*x) >> 1; \
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} while (0)
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bfa_status_t bfad_vport_create(struct bfad_s *bfad, u16 vf_id,
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struct bfa_port_cfg_s *port_cfg, struct device *dev);
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bfa_status_t bfad_vf_create(struct bfad_s *bfad, u16 vf_id,
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struct bfa_port_cfg_s *port_cfg);
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bfa_status_t bfad_cfg_pport(struct bfad_s *bfad, enum bfa_port_role role);
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bfa_status_t bfad_drv_init(struct bfad_s *bfad);
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bfa_status_t bfad_start_ops(struct bfad_s *bfad);
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void bfad_drv_start(struct bfad_s *bfad);
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void bfad_uncfg_pport(struct bfad_s *bfad);
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void bfad_drv_stop(struct bfad_s *bfad);
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void bfad_remove_intr(struct bfad_s *bfad);
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void bfad_hal_mem_release(struct bfad_s *bfad);
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void bfad_hcb_comp(void *arg, bfa_status_t status);
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int bfad_setup_intr(struct bfad_s *bfad);
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void bfad_remove_intr(struct bfad_s *bfad);
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void bfad_update_hal_cfg(struct bfa_iocfc_cfg_s *bfa_cfg);
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bfa_status_t bfad_hal_mem_alloc(struct bfad_s *bfad);
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void bfad_bfa_tmo(unsigned long data);
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void bfad_init_timer(struct bfad_s *bfad);
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int bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad);
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void bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad);
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void bfad_fcs_port_cfg(struct bfad_s *bfad);
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void bfad_drv_uninit(struct bfad_s *bfad);
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void bfad_drv_log_level_set(struct bfad_s *bfad);
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bfa_status_t bfad_fc4_module_init(void);
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void bfad_fc4_module_exit(void);
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int bfad_worker (void *ptr);
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void bfad_pci_remove(struct pci_dev *pdev);
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int bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid);
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void bfad_os_rport_online_wait(struct bfad_s *bfad);
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int bfad_os_get_linkup_delay(struct bfad_s *bfad);
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int bfad_install_msix_handler(struct bfad_s *bfad);
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extern struct idr bfad_im_port_index;
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extern struct list_head bfad_list;
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extern int bfa_lun_queue_depth;
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extern int bfad_supported_fc4s;
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extern int bfa_linkup_delay;
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extern struct mutex bfad_mutex;
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#endif /* __BFAD_DRV_H__ */
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