const char *esas2r_info(struct Scsi_Host *sh)
{
struct esas2r_adapter *a = (struct esas2r_adapter *)sh->hostdata;
static char esas2r_info_str[512];
esas2r_log_dev(ESAS2R_LOG_INFO, &(sh->shost_gendev),
"esas2r_info() called");
/*
* if we haven't done so already, register as a char driver
* and stick a node under "/proc/scsi/esas2r/ATTOnode"
*/
if (esas2r_proc_major <= 0) {
esas2r_proc_host = sh;
esas2r_proc_major = register_chrdev(0, ESAS2R_DRVR_NAME,
&esas2r_proc_fops);
esas2r_log_dev(ESAS2R_LOG_DEBG, &(sh->shost_gendev),
"register_chrdev (major %d)",
esas2r_proc_major);
if (esas2r_proc_major > 0) {
struct proc_dir_entry *pde;
pde = proc_create(ATTONODE_NAME, 0,
sh->hostt->proc_dir,
&esas2r_proc_fops);
if (!pde) {
esas2r_log_dev(ESAS2R_LOG_WARN,
&(sh->shost_gendev),
"failed to create_proc_entry");
esas2r_proc_major = -1;
}
}
}
sprintf(esas2r_info_str,
ESAS2R_LONGNAME " (bus 0x%02X, device 0x%02X, IRQ 0x%02X)"
" driver version: "ESAS2R_VERSION_STR " firmware version: "
"%s\n",
a->pcid->bus->number, a->pcid->devfn, a->pcid->irq,
a->fw_rev[0] ? a->fw_rev : "(none)");
return esas2r_info_str;
}
int esas2r_release(struct Scsi_Host *sh)
{
esas2r_log_dev(ESAS2R_LOG_INFO, &(sh->shost_gendev),
"esas2r_release() called");
esas2r_cleanup(sh);
if (sh->irq)
free_irq(sh->irq, NULL);
scsi_unregister(sh);
return 0;
}
static void esas2r_remove(struct pci_dev *pdev)
{
struct Scsi_Host *host;
int index;
if (pdev == NULL) {
esas2r_log(ESAS2R_LOG_WARN, "esas2r_remove pdev==NULL");
return;
}
host = pci_get_drvdata(pdev);
if (host == NULL) {
/*
* this can happen if pci_set_drvdata was already called
* to clear the host pointer. if this is the case, we
* are okay; this channel has already been cleaned up.
*/
return;
}
esas2r_log_dev(ESAS2R_LOG_INFO, &(pdev->dev),
"esas2r_remove(%p) called; "
"host:%p", pdev,
host);
index = esas2r_cleanup(host);
if (index < 0)
esas2r_log_dev(ESAS2R_LOG_WARN, &(pdev->dev),
"unknown host in %s",
__func__);
found_adapters--;
/* if this was the last adapter, clean up the rest of the driver */
if (found_adapters == 0)
esas2r_cleanup(NULL);
}
static void esas2r_remove(struct pci_dev *pdev)
{
struct Scsi_Host *host = pci_get_drvdata(pdev);
struct esas2r_adapter *a = (struct esas2r_adapter *)host->hostdata;
esas2r_log_dev(ESAS2R_LOG_INFO, &(pdev->dev),
"esas2r_remove(%p) called; "
"host:%p", pdev,
host);
esas2r_kill_adapter(a->index);
found_adapters--;
}
/**
* Searches the specified queue for the specified queue for the command
* to abort.
*
* @param [in] a
* @param [in] abort_request
* @param [in] cmd
* t
* @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)
{
bool found = false;
struct esas2r_request *ar = *abort_request;
struct esas2r_request *rq;
struct list_head *element, *next;
list_for_each_safe(element, next, queue) {
rq = list_entry(element, struct esas2r_request, req_list);
if (rq->cmd == cmd) {
/* Found the request. See what to do with it. */
if (queue == &a->active_list) {
/*
* We are searching the active queue, which
* means that we need to send an abort request
* to the firmware.
*/
ar = esas2r_alloc_request(a);
if (ar == NULL) {
esas2r_log_dev(ESAS2R_LOG_WARN,
&(a->host->shost_gendev),
"unable to allocate an abort request for cmd %p",
cmd);
return 0; /* Failure */
}
/*
* Task management request must be formatted
* with a lock held.
*/
ar->sense_len = 0;
ar->vrq->scsi.length = 0;
ar->target_id = rq->target_id;
ar->vrq->scsi.flags |= cpu_to_le32(
(u8)le32_to_cpu(rq->vrq->scsi.flags));
memset(ar->vrq->scsi.cdb, 0,
sizeof(ar->vrq->scsi.cdb));
ar->vrq->scsi.flags |= cpu_to_le32(
FCP_CMND_TRM);
ar->vrq->scsi.u.abort_handle =
rq->vrq->scsi.handle;
} else {
/*
* The request is pending but not active on
* the firmware. Just free it now and we'll
* report the successful abort below.
*/
list_del_init(&rq->req_list);
esas2r_free_request(a, rq);
}
found = true;
break;
}
}
static int esas2r_probe(struct pci_dev *pcid,
const struct pci_device_id *id)
{
struct Scsi_Host *host = NULL;
struct esas2r_adapter *a;
int err;
size_t host_alloc_size = sizeof(struct esas2r_adapter)
+ ((num_requests) +
1) * sizeof(struct esas2r_request);
esas2r_log_dev(ESAS2R_LOG_DEBG, &(pcid->dev),
"esas2r_probe() 0x%02x 0x%02x 0x%02x 0x%02x",
pcid->vendor,
pcid->device,
pcid->subsystem_vendor,
pcid->subsystem_device);
esas2r_log_dev(ESAS2R_LOG_INFO, &(pcid->dev),
"before pci_enable_device() "
"enable_cnt: %d",
pcid->enable_cnt.counter);
err = pci_enable_device(pcid);
if (err != 0) {
esas2r_log_dev(ESAS2R_LOG_CRIT, &(pcid->dev),
"pci_enable_device() FAIL (%d)",
err);
return -ENODEV;
}
esas2r_log_dev(ESAS2R_LOG_INFO, &(pcid->dev),
"pci_enable_device() OK");
esas2r_log_dev(ESAS2R_LOG_INFO, &(pcid->dev),
"after pci_enable_device() enable_cnt: %d",
pcid->enable_cnt.counter);
host = scsi_host_alloc(&driver_template, host_alloc_size);
if (host == NULL) {
esas2r_log(ESAS2R_LOG_CRIT, "scsi_host_alloc() FAIL");
return -ENODEV;
}
memset(host->hostdata, 0, host_alloc_size);
a = (struct esas2r_adapter *)host->hostdata;
esas2r_log(ESAS2R_LOG_INFO, "scsi_host_alloc() OK host: %p", host);
/* override max LUN and max target id */
host->max_id = ESAS2R_MAX_ID + 1;
host->max_lun = 255;
/* we can handle 16-byte CDbs */
host->max_cmd_len = 16;
host->can_queue = can_queue;
host->cmd_per_lun = cmd_per_lun;
host->this_id = host->max_id + 1;
host->max_channel = 0;
host->unique_id = found_adapters;
host->sg_tablesize = sg_tablesize;
host->max_sectors = esas2r_max_sectors;
/* set to bus master for BIOses that don't do it for us */
esas2r_log(ESAS2R_LOG_INFO, "pci_set_master() called");
pci_set_master(pcid);
if (!esas2r_init_adapter(host, pcid, found_adapters)) {
esas2r_log(ESAS2R_LOG_CRIT,
"unable to initialize device at PCI bus %x:%x",
pcid->bus->number,
pcid->devfn);
esas2r_log_dev(ESAS2R_LOG_INFO, &(host->shost_gendev),
"scsi_host_put() called");
scsi_host_put(host);
return 0;
}
esas2r_log(ESAS2R_LOG_INFO, "pci_set_drvdata(%p, %p) called", pcid,
host->hostdata);
pci_set_drvdata(pcid, host);
esas2r_log(ESAS2R_LOG_INFO, "scsi_add_host() called");
err = scsi_add_host(host, &pcid->dev);
if (err) {
esas2r_log(ESAS2R_LOG_CRIT, "scsi_add_host returned %d", err);
esas2r_log_dev(ESAS2R_LOG_CRIT, &(host->shost_gendev),
"scsi_add_host() FAIL");
esas2r_log_dev(ESAS2R_LOG_INFO, &(host->shost_gendev),
"scsi_host_put() called");
scsi_host_put(host);
esas2r_log_dev(ESAS2R_LOG_INFO, &(host->shost_gendev),
"pci_set_drvdata(%p, NULL) called",
pcid);
pci_set_drvdata(pcid, NULL);
return -ENODEV;
}
esas2r_fw_event_on(a);
esas2r_log_dev(ESAS2R_LOG_INFO, &(host->shost_gendev),
"scsi_scan_host() called");
scsi_scan_host(host);
/* Add sysfs binary files */
if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_fw))
esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
"Failed to create sysfs binary file: fw");
else
a->sysfs_fw_created = 1;
if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_fs))
esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
"Failed to create sysfs binary file: fs");
else
a->sysfs_fs_created = 1;
if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_vda))
esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
"Failed to create sysfs binary file: vda");
else
a->sysfs_vda_created = 1;
if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_hw))
esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
"Failed to create sysfs binary file: hw");
else
a->sysfs_hw_created = 1;
if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_live_nvram))
esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
"Failed to create sysfs binary file: live_nvram");
else
a->sysfs_live_nvram_created = 1;
if (sysfs_create_bin_file(&host->shost_dev.kobj,
&bin_attr_default_nvram))
esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
"Failed to create sysfs binary file: default_nvram");
else
a->sysfs_default_nvram_created = 1;
found_adapters++;
return 0;
}