mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-29 23:53:32 +00:00
f7f73812e9
Cleaned up one line functions. Signed-off-by: Maggie Zhang <xmzhang@brocade.com> Signed-off-by: Jing Huang <huangj@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
1608 lines
39 KiB
C
1608 lines
39 KiB
C
/*
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* Copyright (c) 2005-2010 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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* bfad.c Linux driver PCI interface module.
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*/
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#include <linux/module.h>
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#include <linux/kthread.h>
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#include <linux/errno.h>
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#include <linux/sched.h>
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#include <linux/init.h>
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#include <linux/fs.h>
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#include <linux/pci.h>
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#include <linux/firmware.h>
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#include <asm/uaccess.h>
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#include <asm/fcntl.h>
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#include "bfad_drv.h"
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#include "bfad_im.h"
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#include "bfa_fcs.h"
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#include "bfa_os_inc.h"
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#include "bfa_defs.h"
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#include "bfa.h"
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BFA_TRC_FILE(LDRV, BFAD);
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DEFINE_MUTEX(bfad_mutex);
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LIST_HEAD(bfad_list);
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static int bfad_inst;
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static int num_sgpgs_parm;
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int supported_fc4s;
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char *host_name, *os_name, *os_patch;
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int num_rports, num_ios, num_tms;
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int num_fcxps, num_ufbufs;
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int reqq_size, rspq_size, num_sgpgs;
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int rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT;
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int bfa_lun_queue_depth = BFAD_LUN_QUEUE_DEPTH;
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int bfa_io_max_sge = BFAD_IO_MAX_SGE;
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int bfa_log_level = 3; /* WARNING log level */
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int ioc_auto_recover = BFA_TRUE;
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int bfa_linkup_delay = -1;
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int fdmi_enable = BFA_TRUE;
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int pcie_max_read_reqsz;
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int bfa_debugfs_enable = 1;
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int msix_disable_cb = 0, msix_disable_ct = 0;
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u32 bfi_image_ct_fc_size, bfi_image_ct_cna_size, bfi_image_cb_fc_size;
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u32 *bfi_image_ct_fc, *bfi_image_ct_cna, *bfi_image_cb_fc;
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static const char *msix_name_ct[] = {
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"cpe0", "cpe1", "cpe2", "cpe3",
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"rme0", "rme1", "rme2", "rme3",
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"ctrl" };
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static const char *msix_name_cb[] = {
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"cpe0", "cpe1", "cpe2", "cpe3",
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"rme0", "rme1", "rme2", "rme3",
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"eemc", "elpu0", "elpu1", "epss", "mlpu" };
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MODULE_FIRMWARE(BFAD_FW_FILE_CT_FC);
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MODULE_FIRMWARE(BFAD_FW_FILE_CT_CNA);
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MODULE_FIRMWARE(BFAD_FW_FILE_CB_FC);
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module_param(os_name, charp, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(os_name, "OS name of the hba host machine");
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module_param(os_patch, charp, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(os_patch, "OS patch level of the hba host machine");
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module_param(host_name, charp, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(host_name, "Hostname of the hba host machine");
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module_param(num_rports, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(num_rports, "Max number of rports supported per port "
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"(physical/logical), default=1024");
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module_param(num_ios, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(num_ios, "Max number of ioim requests, default=2000");
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module_param(num_tms, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(num_tms, "Max number of task im requests, default=128");
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module_param(num_fcxps, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(num_fcxps, "Max number of fcxp requests, default=64");
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module_param(num_ufbufs, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(num_ufbufs, "Max number of unsolicited frame "
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"buffers, default=64");
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module_param(reqq_size, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(reqq_size, "Max number of request queue elements, "
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"default=256");
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module_param(rspq_size, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(rspq_size, "Max number of response queue elements, "
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"default=64");
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module_param(num_sgpgs, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(num_sgpgs, "Number of scatter/gather pages, default=2048");
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module_param(rport_del_timeout, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(rport_del_timeout, "Rport delete timeout, default=90 secs, "
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"Range[>0]");
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module_param(bfa_lun_queue_depth, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(bfa_lun_queue_depth, "Lun queue depth, default=32, Range[>0]");
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module_param(bfa_io_max_sge, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(bfa_io_max_sge, "Max io scatter/gather elements, default=255");
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module_param(bfa_log_level, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(bfa_log_level, "Driver log level, default=3, "
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"Range[Critical:1|Error:2|Warning:3|Info:4]");
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module_param(ioc_auto_recover, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(ioc_auto_recover, "IOC auto recovery, default=1, "
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"Range[off:0|on:1]");
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module_param(bfa_linkup_delay, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(bfa_linkup_delay, "Link up delay, default=30 secs for "
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"boot port. Otherwise 10 secs in RHEL4 & 0 for "
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"[RHEL5, SLES10, ESX40] Range[>0]");
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module_param(msix_disable_cb, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(msix_disable_cb, "Disable Message Signaled Interrupts "
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"for Brocade-415/425/815/825 cards, default=0, "
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" Range[false:0|true:1]");
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module_param(msix_disable_ct, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(msix_disable_ct, "Disable Message Signaled Interrupts "
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"if possible for Brocade-1010/1020/804/1007/902/1741 "
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"cards, default=0, Range[false:0|true:1]");
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module_param(fdmi_enable, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(fdmi_enable, "Enables fdmi registration, default=1, "
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"Range[false:0|true:1]");
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module_param(pcie_max_read_reqsz, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(pcie_max_read_reqsz, "PCIe max read request size, default=0 "
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"(use system setting), Range[128|256|512|1024|2048|4096]");
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module_param(bfa_debugfs_enable, int, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(bfa_debugfs_enable, "Enables debugfs feature, default=1,"
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" Range[false:0|true:1]");
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static void
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bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event);
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static void
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bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event);
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static void
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bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event);
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static void
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bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event);
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static void
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bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event);
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static void
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bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event);
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static void
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bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event);
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/*
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* Beginning state for the driver instance, awaiting the pci_probe event
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*/
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static void
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bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event)
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{
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bfa_trc(bfad, event);
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switch (event) {
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case BFAD_E_CREATE:
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bfa_sm_set_state(bfad, bfad_sm_created);
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bfad->bfad_tsk = kthread_create(bfad_worker, (void *) bfad,
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"%s", "bfad_worker");
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if (IS_ERR(bfad->bfad_tsk)) {
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printk(KERN_INFO "bfad[%d]: Kernel thread "
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"creation failed!\n", bfad->inst_no);
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bfa_sm_send_event(bfad, BFAD_E_KTHREAD_CREATE_FAILED);
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}
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bfa_sm_send_event(bfad, BFAD_E_INIT);
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break;
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case BFAD_E_STOP:
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/* Ignore stop; already in uninit */
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break;
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default:
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bfa_sm_fault(bfad, event);
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}
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}
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/*
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* Driver Instance is created, awaiting event INIT to initialize the bfad
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*/
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static void
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bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event)
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{
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unsigned long flags;
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bfa_trc(bfad, event);
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switch (event) {
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case BFAD_E_INIT:
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bfa_sm_set_state(bfad, bfad_sm_initializing);
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init_completion(&bfad->comp);
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/* Enable Interrupt and wait bfa_init completion */
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if (bfad_setup_intr(bfad)) {
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printk(KERN_WARNING "bfad%d: bfad_setup_intr failed\n",
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bfad->inst_no);
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bfa_sm_send_event(bfad, BFAD_E_INTR_INIT_FAILED);
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break;
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}
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spin_lock_irqsave(&bfad->bfad_lock, flags);
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bfa_iocfc_init(&bfad->bfa);
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spin_unlock_irqrestore(&bfad->bfad_lock, flags);
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/* Set up interrupt handler for each vectors */
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if ((bfad->bfad_flags & BFAD_MSIX_ON) &&
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bfad_install_msix_handler(bfad)) {
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printk(KERN_WARNING "%s: install_msix failed, bfad%d\n",
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__func__, bfad->inst_no);
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}
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bfad_init_timer(bfad);
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wait_for_completion(&bfad->comp);
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if ((bfad->bfad_flags & BFAD_HAL_INIT_DONE)) {
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bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
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} else {
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bfad->bfad_flags |= BFAD_HAL_INIT_FAIL;
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bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
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}
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break;
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case BFAD_E_KTHREAD_CREATE_FAILED:
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bfa_sm_set_state(bfad, bfad_sm_uninit);
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break;
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default:
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bfa_sm_fault(bfad, event);
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}
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}
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static void
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bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event)
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{
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int retval;
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unsigned long flags;
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bfa_trc(bfad, event);
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switch (event) {
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case BFAD_E_INIT_SUCCESS:
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kthread_stop(bfad->bfad_tsk);
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spin_lock_irqsave(&bfad->bfad_lock, flags);
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bfad->bfad_tsk = NULL;
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spin_unlock_irqrestore(&bfad->bfad_lock, flags);
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retval = bfad_start_ops(bfad);
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if (retval != BFA_STATUS_OK)
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break;
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bfa_sm_set_state(bfad, bfad_sm_operational);
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break;
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case BFAD_E_INTR_INIT_FAILED:
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bfa_sm_set_state(bfad, bfad_sm_uninit);
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kthread_stop(bfad->bfad_tsk);
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spin_lock_irqsave(&bfad->bfad_lock, flags);
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bfad->bfad_tsk = NULL;
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spin_unlock_irqrestore(&bfad->bfad_lock, flags);
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break;
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case BFAD_E_INIT_FAILED:
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bfa_sm_set_state(bfad, bfad_sm_failed);
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break;
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default:
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bfa_sm_fault(bfad, event);
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}
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}
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static void
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bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event)
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{
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int retval;
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bfa_trc(bfad, event);
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switch (event) {
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case BFAD_E_INIT_SUCCESS:
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retval = bfad_start_ops(bfad);
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if (retval != BFA_STATUS_OK)
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break;
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bfa_sm_set_state(bfad, bfad_sm_operational);
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break;
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case BFAD_E_STOP:
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if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE)
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bfad_uncfg_pport(bfad);
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if (bfad->bfad_flags & BFAD_FC4_PROBE_DONE) {
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bfad_im_probe_undo(bfad);
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bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE;
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}
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bfad_stop(bfad);
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break;
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case BFAD_E_EXIT_COMP:
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bfa_sm_set_state(bfad, bfad_sm_uninit);
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bfad_remove_intr(bfad);
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del_timer_sync(&bfad->hal_tmo);
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break;
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default:
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bfa_sm_fault(bfad, event);
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}
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}
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static void
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bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event)
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{
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bfa_trc(bfad, event);
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switch (event) {
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case BFAD_E_STOP:
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bfa_sm_set_state(bfad, bfad_sm_fcs_exit);
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bfad_fcs_stop(bfad);
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break;
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default:
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bfa_sm_fault(bfad, event);
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}
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}
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static void
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bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event)
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{
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bfa_trc(bfad, event);
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switch (event) {
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case BFAD_E_FCS_EXIT_COMP:
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bfa_sm_set_state(bfad, bfad_sm_stopping);
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bfad_stop(bfad);
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break;
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default:
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bfa_sm_fault(bfad, event);
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}
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}
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static void
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bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event)
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{
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bfa_trc(bfad, event);
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switch (event) {
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case BFAD_E_EXIT_COMP:
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bfa_sm_set_state(bfad, bfad_sm_uninit);
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bfad_remove_intr(bfad);
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del_timer_sync(&bfad->hal_tmo);
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bfad_im_probe_undo(bfad);
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bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE;
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bfad_uncfg_pport(bfad);
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break;
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default:
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bfa_sm_fault(bfad, event);
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break;
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}
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}
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/*
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* BFA callbacks
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*/
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void
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bfad_hcb_comp(void *arg, bfa_status_t status)
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{
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struct bfad_hal_comp *fcomp = (struct bfad_hal_comp *)arg;
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fcomp->status = status;
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complete(&fcomp->comp);
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}
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/*
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* bfa_init callback
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*/
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void
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bfa_cb_init(void *drv, bfa_status_t init_status)
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{
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struct bfad_s *bfad = drv;
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if (init_status == BFA_STATUS_OK) {
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bfad->bfad_flags |= BFAD_HAL_INIT_DONE;
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/*
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* If BFAD_HAL_INIT_FAIL flag is set:
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* Wake up the kernel thread to start
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* the bfad operations after HAL init done
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*/
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if ((bfad->bfad_flags & BFAD_HAL_INIT_FAIL)) {
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bfad->bfad_flags &= ~BFAD_HAL_INIT_FAIL;
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wake_up_process(bfad->bfad_tsk);
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}
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}
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complete(&bfad->comp);
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}
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/*
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* BFA_FCS callbacks
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*/
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struct bfad_port_s *
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bfa_fcb_lport_new(struct bfad_s *bfad, struct bfa_fcs_lport_s *port,
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enum bfa_lport_role roles, struct bfad_vf_s *vf_drv,
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struct bfad_vport_s *vp_drv)
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{
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bfa_status_t rc;
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struct bfad_port_s *port_drv;
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if (!vp_drv && !vf_drv) {
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port_drv = &bfad->pport;
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port_drv->pvb_type = BFAD_PORT_PHYS_BASE;
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} else if (!vp_drv && vf_drv) {
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port_drv = &vf_drv->base_port;
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port_drv->pvb_type = BFAD_PORT_VF_BASE;
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} else if (vp_drv && !vf_drv) {
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port_drv = &vp_drv->drv_port;
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port_drv->pvb_type = BFAD_PORT_PHYS_VPORT;
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} else {
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port_drv = &vp_drv->drv_port;
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port_drv->pvb_type = BFAD_PORT_VF_VPORT;
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}
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port_drv->fcs_port = port;
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port_drv->roles = roles;
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if (roles & BFA_LPORT_ROLE_FCP_IM) {
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|
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:
|
|
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)
|
|
{
|
|
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)
|
|
if (pci_set_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));
|
|
|
|
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->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_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;
|
|
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
|
|
|
|
bfad->bfad_flags |= BFAD_DRV_INIT_DONE;
|
|
|
|
return BFA_STATUS_OK;
|
|
|
|
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_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;
|
|
}
|
|
|
|
/* Setup the debugfs node for this scsi_host */
|
|
if (bfa_debugfs_enable)
|
|
bfad_debugfs_init(&bfad->pport);
|
|
|
|
bfad->bfad_flags |= BFAD_CFG_PPORT_DONE;
|
|
|
|
out:
|
|
return rc;
|
|
}
|
|
|
|
void
|
|
bfad_uncfg_pport(struct bfad_s *bfad)
|
|
{
|
|
/* Remove the debugfs node for this scsi_host */
|
|
kfree(bfad->regdata);
|
|
bfad_debugfs_exit(&bfad->pport);
|
|
|
|
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 INIT */
|
|
spin_lock_irqsave(&bfad->bfad_lock, flags);
|
|
bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info);
|
|
bfa_fcs_init(&bfad->bfa_fcs);
|
|
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
|
|
|
|
retval = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM);
|
|
if (retval != BFA_STATUS_OK) {
|
|
if (bfa_sm_cmp_state(bfad, bfad_sm_initializing))
|
|
bfa_sm_set_state(bfad, bfad_sm_failed);
|
|
bfad_stop(bfad);
|
|
return BFA_STATUS_FAILED;
|
|
}
|
|
|
|
/* 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_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(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);
|
|
bfa_trc_fp(bfad, irq);
|
|
}
|
|
|
|
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_ct(bfad->hal_pcidev.device_id)) ?
|
|
msix_name_ct[i] : msix_name_cb[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;
|
|
|
|
/* 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_ct(pdev->device) && !msix_disable_ct) ||
|
|
(!bfa_asic_id_ct(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 dupicate 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;
|
|
}
|
|
|
|
/* 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);
|
|
|
|
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:
|
|
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);
|
|
|
|
/* 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,
|
|
},
|
|
|
|
{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 */
|
|
u32 *
|
|
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);
|
|
goto error;
|
|
}
|
|
|
|
*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 error;
|
|
}
|
|
|
|
memcpy(*bfi_image, fw->data, fw->size);
|
|
*bfi_image_size = fw->size/sizeof(u32);
|
|
|
|
return *bfi_image;
|
|
|
|
error:
|
|
return NULL;
|
|
}
|
|
|
|
u32 *
|
|
bfad_get_firmware_buf(struct pci_dev *pdev)
|
|
{
|
|
if (pdev->device == BFA_PCI_DEVICE_ID_CT_FC) {
|
|
if (bfi_image_ct_fc_size == 0)
|
|
bfad_read_firmware(pdev, &bfi_image_ct_fc,
|
|
&bfi_image_ct_fc_size, BFAD_FW_FILE_CT_FC);
|
|
return bfi_image_ct_fc;
|
|
} else if (pdev->device == BFA_PCI_DEVICE_ID_CT) {
|
|
if (bfi_image_ct_cna_size == 0)
|
|
bfad_read_firmware(pdev, &bfi_image_ct_cna,
|
|
&bfi_image_ct_cna_size, BFAD_FW_FILE_CT_CNA);
|
|
return bfi_image_ct_cna;
|
|
} else {
|
|
if (bfi_image_cb_fc_size == 0)
|
|
bfad_read_firmware(pdev, &bfi_image_cb_fc,
|
|
&bfi_image_cb_fc_size, BFAD_FW_FILE_CB_FC);
|
|
return bfi_image_cb_fc;
|
|
}
|
|
}
|
|
|
|
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);
|