Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-23 19:31:53 +00:00
Code Issues Packages Projects Releases Wiki Activity

cciss: switch to ->show_info()

Browse Source 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2013-03-31 02:00:06 -04:00
parent 25daa96f2b
commit e88b7bb002
1 changed files with 46 additions and 52 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

98
drivers/block/cciss_scsi.c
View File

@ -54,13 +54,11 @@ static CommandList_struct *cmd_special_alloc(ctlr_info_t *h);
static void cmd_free(ctlr_info_t *h, CommandList_struct *c);
static void cmd_special_free(ctlr_info_t *h, CommandList_struct *c);
static int cciss_scsi_proc_info(
struct Scsi_Host *sh,
static int cciss_scsi_write_info(struct Scsi_Host *sh,
char *buffer, /* data buffer */
char **start, /* where data in buffer starts */
off_t offset, /* offset from start of imaginary file */
int length, /* length of data in buffer */
int func); /* 0 == read, 1 == write */
int length); /* length of data in buffer */
static int cciss_scsi_show_info(struct seq_file *m,
struct Scsi_Host *sh);
static int cciss_scsi_queue_command (struct Scsi_Host *h,
struct scsi_cmnd *cmd);
@ -82,7 +80,8 @@ static struct scsi_host_template cciss_driver_template = {
.module = THIS_MODULE,
.name = "cciss",
.proc_name = "cciss",
.proc_info = cciss_scsi_proc_info,
.write_info = cciss_scsi_write_info,
.show_info = cciss_scsi_show_info,
.queuecommand = cciss_scsi_queue_command,
.this_id = 7,
.cmd_per_lun = 1,
@ -1302,60 +1301,55 @@ cciss_scsi_user_command(ctlr_info_t *h, int hostno, char *buffer, int length)
return length;
}
static int
cciss_scsi_proc_info(struct Scsi_Host *sh,
cciss_scsi_write_info(struct Scsi_Host *sh,
char *buffer, /* data buffer */
char **start, /* where data in buffer starts */
off_t offset, /* offset from start of imaginary file */
int length, /* length of data in buffer */
int func) /* 0 == read, 1 == write */
int length) /* length of data in buffer */
{
int buflen, datalen;
ctlr_info_t *h;
int i;
h = (ctlr_info_t *) sh->hostdata[0];
ctlr_info_t *h = (ctlr_info_t *) sh->hostdata[0];
if (h == NULL) /* This really shouldn't ever happen. */
return -EINVAL;
if (func == 0) { /* User is reading from /proc/scsi/ciss*?/?* */
buflen = sprintf(buffer, "cciss%d: SCSI host: %d\n",
h->ctlr, sh->host_no);
/* this information is needed by apps to know which cciss
device corresponds to which scsi host number without
having to open a scsi target device node. The device
information is not a duplicate of /proc/scsi/scsi because
the two may be out of sync due to scsi hotplug, rather
this info is for an app to be able to use to know how to
get them back in sync. */
for (i = 0; i < ccissscsi[h->ctlr].ndevices; i++) {
struct cciss_scsi_dev_t *sd =
&ccissscsi[h->ctlr].dev[i];
buflen += sprintf(&buffer[buflen], "c%db%dt%dl%d %02d "
"0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
sh->host_no, sd->bus, sd->target, sd->lun,
sd->devtype,
sd->scsi3addr[0], sd->scsi3addr[1],
sd->scsi3addr[2], sd->scsi3addr[3],
sd->scsi3addr[4], sd->scsi3addr[5],
sd->scsi3addr[6], sd->scsi3addr[7]);
}
datalen = buflen - offset;
if (datalen < 0) { /* they're reading past EOF. */
datalen = 0;
*start = buffer+buflen;
} else
*start = buffer + offset;
return(datalen);
} else /* User is writing to /proc/scsi/cciss*?/?* ... */
return cciss_scsi_user_command(h, sh->host_no,
return cciss_scsi_user_command(h, sh->host_no,
buffer, length);
}
static int
cciss_scsi_show_info(struct seq_file *m, struct Scsi_Host *sh)
{
ctlr_info_t *h = (ctlr_info_t *) sh->hostdata[0];
int i;
if (h == NULL) /* This really shouldn't ever happen. */
return -EINVAL;
seq_printf(m, "cciss%d: SCSI host: %d\n",
h->ctlr, sh->host_no);
/* this information is needed by apps to know which cciss
device corresponds to which scsi host number without
having to open a scsi target device node. The device
information is not a duplicate of /proc/scsi/scsi because
the two may be out of sync due to scsi hotplug, rather
this info is for an app to be able to use to know how to
get them back in sync. */
for (i = 0; i < ccissscsi[h->ctlr].ndevices; i++) {
struct cciss_scsi_dev_t *sd =
&ccissscsi[h->ctlr].dev[i];
seq_printf(m, "c%db%dt%dl%d %02d "
"0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
sh->host_no, sd->bus, sd->target, sd->lun,
sd->devtype,
sd->scsi3addr[0], sd->scsi3addr[1],
sd->scsi3addr[2], sd->scsi3addr[3],
sd->scsi3addr[4], sd->scsi3addr[5],
sd->scsi3addr[6], sd->scsi3addr[7]);
}
return 0;
}
/* cciss_scatter_gather takes a struct scsi_cmnd, (cmd), and does the pci
dma mapping and fills in the scatter gather entries of the
cciss command, c. */