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path: root/drivers/block/cciss_scsi.c
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Diffstat (limited to 'drivers/block/cciss_scsi.c')
-rw-r--r--drivers/block/cciss_scsi.c96
1 files changed, 45 insertions, 51 deletions
diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c
index da3311129a0c..ecd845cd28d8 100644
--- a/drivers/block/cciss_scsi.c
+++ b/drivers/block/cciss_scsi.c
@@ -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,
@@ -1302,59 +1301,54 @@ 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 */
{
+ ctlr_info_t *h = (ctlr_info_t *) sh->hostdata[0];
+ if (h == NULL) /* This really shouldn't ever happen. */
+ return -EINVAL;
- int buflen, datalen;
- ctlr_info_t *h;
+ 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;
- 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,
- buffer, length);
-}
+ 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