/* * linux/drivers/scsi/esas2r/esas2r_main.c * For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers * * Copyright (c) 2001-2013 ATTO Technology, Inc. * (mailto:[email protected]) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * 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. * * NO WARRANTY * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is * solely responsible for determining the appropriateness of using and * distributing the Program and assumes all risks associated with its * exercise of rights under this Agreement, including but not limited to * the risks and costs of program errors, damage to or loss of data, * programs or equipment, and unavailability or interruption of operations. * * DISCLAIMER OF LIABILITY * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, * USA. */ #include "esas2r.h" MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; MODULE_VERSION(…); /* global definitions */ static int found_adapters; struct esas2r_adapter *esas2r_adapters[MAX_ADAPTERS]; #define ESAS2R_VDA_EVENT_PORT1 … #define ESAS2R_VDA_EVENT_PORT2 … #define ESAS2R_VDA_EVENT_SOCK_COUNT … static struct esas2r_adapter *esas2r_adapter_from_kobj(struct kobject *kobj) { … } static ssize_t read_fw(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t off, size_t count) { … } static ssize_t write_fw(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t off, size_t count) { … } static ssize_t read_fs(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t off, size_t count) { … } static ssize_t write_fs(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t off, size_t count) { … } static ssize_t read_vda(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t off, size_t count) { … } static ssize_t write_vda(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t off, size_t count) { … } static ssize_t read_live_nvram(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t off, size_t count) { … } static ssize_t write_live_nvram(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t off, size_t count) { … } static ssize_t read_default_nvram(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t off, size_t count) { … } static ssize_t read_hw(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t off, size_t count) { … } static ssize_t write_hw(struct file *file, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t off, size_t count) { … } #define ESAS2R_RW_BIN_ATTR(_name) … ESAS2R_RW_BIN_ATTR(…); ESAS2R_RW_BIN_ATTR(…); ESAS2R_RW_BIN_ATTR(…); ESAS2R_RW_BIN_ATTR(…); ESAS2R_RW_BIN_ATTR(…); struct bin_attribute bin_attr_default_nvram = …; static const struct scsi_host_template driver_template = …; int sgl_page_size = …; module_param(sgl_page_size, int, 0); MODULE_PARM_DESC(…) …; int num_sg_lists = …; module_param(num_sg_lists, int, 0); MODULE_PARM_DESC(…) …; int sg_tablesize = …; module_param(sg_tablesize, int, 0); MODULE_PARM_DESC(…) …; int num_requests = …; module_param(num_requests, int, 0); MODULE_PARM_DESC(…) …; int num_ae_requests = …; module_param(num_ae_requests, int, 0); MODULE_PARM_DESC(…) …; int cmd_per_lun = …; module_param(cmd_per_lun, int, 0); MODULE_PARM_DESC(…) …; int can_queue = …; module_param(can_queue, int, 0); MODULE_PARM_DESC(…) …; int esas2r_max_sectors = …; module_param(esas2r_max_sectors, int, 0); MODULE_PARM_DESC(…) …; int interrupt_mode = …; module_param(interrupt_mode, int, 0); MODULE_PARM_DESC(…) …; static const struct pci_device_id esas2r_pci_table[] = …; MODULE_DEVICE_TABLE(pci, esas2r_pci_table); static int esas2r_probe(struct pci_dev *pcid, const struct pci_device_id *id); static void esas2r_remove(struct pci_dev *pcid); static struct pci_driver esas2r_pci_driver = …; static int esas2r_probe(struct pci_dev *pcid, const struct pci_device_id *id) { … } static void esas2r_remove(struct pci_dev *pdev) { … } static int __init esas2r_init(void) { … } /* Handle ioctl calls to "/proc/scsi/esas2r/ATTOnode" */ static const struct file_operations esas2r_proc_fops = …; static const struct proc_ops esas2r_proc_ops = …; static struct Scsi_Host *esas2r_proc_host; static int esas2r_proc_major; long esas2r_proc_ioctl(struct file *fp, unsigned int cmd, unsigned long arg) { … } static void __exit esas2r_exit(void) { … } int esas2r_show_info(struct seq_file *m, struct Scsi_Host *sh) { … } const char *esas2r_info(struct Scsi_Host *sh) { … } /* Callback for building a request scatter/gather list */ static u32 get_physaddr_from_sgc(struct esas2r_sg_context *sgc, u64 *addr) { … } int esas2r_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) { … } static void complete_task_management_request(struct esas2r_adapter *a, struct esas2r_request *rq) { … } /* * Searches the specified queue for the specified queue for the command * to abort. * * Return 0 on failure, 1 if command was not found, 2 if command was found */ static int esas2r_check_active_queue(struct esas2r_adapter *a, struct esas2r_request **abort_request, struct scsi_cmnd *cmd, struct list_head *queue) { … } int esas2r_eh_abort(struct scsi_cmnd *cmd) { … } static int esas2r_host_bus_reset(struct scsi_cmnd *cmd, bool host_reset) { … } int esas2r_host_reset(struct scsi_cmnd *cmd) { … } int esas2r_bus_reset(struct scsi_cmnd *cmd) { … } static int esas2r_dev_targ_reset(struct scsi_cmnd *cmd, bool target_reset) { … } int esas2r_device_reset(struct scsi_cmnd *cmd) { … } int esas2r_target_reset(struct scsi_cmnd *cmd) { … } void esas2r_log_request_failure(struct esas2r_adapter *a, struct esas2r_request *rq) { … } void esas2r_wait_request(struct esas2r_adapter *a, struct esas2r_request *rq) { … } u32 esas2r_map_data_window(struct esas2r_adapter *a, u32 addr_lo) { … } /* Read a block of data from chip memory */ bool esas2r_read_mem_block(struct esas2r_adapter *a, void *to, u32 from, u32 size) { … } void esas2r_nuxi_mgt_data(u8 function, void *data) { … } void esas2r_nuxi_cfg_data(u8 function, void *data) { … } void esas2r_nuxi_ae_data(union atto_vda_ae *ae) { … } void esas2r_free_request(struct esas2r_adapter *a, struct esas2r_request *rq) { … } struct esas2r_request *esas2r_alloc_request(struct esas2r_adapter *a) { … } void esas2r_complete_request_cb(struct esas2r_adapter *a, struct esas2r_request *rq) { … } /* Run tasklet to handle stuff outside of interrupt context. */ void esas2r_adapter_tasklet(unsigned long context) { … } static void esas2r_timer_callback(struct timer_list *t); void esas2r_kickoff_timer(struct esas2r_adapter *a) { … } static void esas2r_timer_callback(struct timer_list *t) { … } /* * Firmware events need to be handled outside of interrupt context * so we schedule a delayed_work to handle them. */ static void esas2r_free_fw_event(struct esas2r_fw_event_work *fw_event) { … } void esas2r_fw_event_off(struct esas2r_adapter *a) { … } void esas2r_fw_event_on(struct esas2r_adapter *a) { … } static void esas2r_add_device(struct esas2r_adapter *a, u16 target_id) { … } static void esas2r_remove_device(struct esas2r_adapter *a, u16 target_id) { … } /* * Sends a firmware asynchronous event to anyone who happens to be * listening on the defined ATTO VDA event ports. */ static void esas2r_send_ae_event(struct esas2r_fw_event_work *fw_event) { … } static void esas2r_firmware_event_work(struct work_struct *work) { … } void esas2r_queue_fw_event(struct esas2r_adapter *a, enum fw_event_type type, void *data, int data_sz) { … } void esas2r_target_state_changed(struct esas2r_adapter *a, u16 targ_id, u8 state) { … } /* Translate status to a Linux SCSI mid-layer error code */ int esas2r_req_status_to_error(u8 req_stat) { … } module_init(…) …; module_exit(esas2r_exit);
Codebase Browser
linux