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Subject[PATCH 2.4] multiple cpqarray controlers with devfs
Date
Hello Marcelo,

Without this patch I can't use more than one cpqarray controllers
at once on devfs enabled system.

Tested with two controllers:
"Smart Array 221" + "SMART-2/P"

All credits goes to Richard Gooch <rgooch@ras.ucalgary.ca>.
This patch was already in his devfs patchset, but from
what i've seen was never merged in mainline.

Please apply.

===== drivers/block/cpqarray.c 1.27 vs edited =====
--- 1.27/drivers/block/cpqarray.c Tue Dec 17 02:26:25 2002
+++ edited/drivers/block/cpqarray.c Thu Jan 16 20:41:39 2003
@@ -32,6 +32,7 @@
#include <linux/blkpg.h>
#include <linux/timer.h>
#include <linux/proc_fs.h>
+#include <linux/devfs_fs_kernel.h>
#include <linux/init.h>
#include <linux/hdreg.h>
#include <linux/spinlock.h>
@@ -69,7 +70,7 @@

static ctlr_info_t *hba[MAX_CTLR] =
{ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL };
-
+static devfs_handle_t de_arr[MAX_CTLR][NWD];
static int eisa[8];

#define NR_PRODUCTS (sizeof(products)/sizeof(struct board_type))
@@ -578,9 +579,10 @@
hba[i]->gendisk.max_p = IDA_MAX_PART;
hba[i]->gendisk.part = hba[i]->hd;
hba[i]->gendisk.sizes = hba[i]->sizes;
- hba[i]->gendisk.nr_real = hba[i]->highest_lun+1;
+ hba[i]->gendisk.nr_real = hba[i]->highest_lun+1;
+ hba[i]->gendisk.de_arr = de_arr[i];
hba[i]->gendisk.fops = &ida_fops;
-
+
/* Get on the disk list */
add_gendisk(&(hba[i]->gendisk));

@@ -2439,6 +2441,13 @@
}
if(log_unit > info_p->highest_lun)
info_p->highest_lun = log_unit;
+ if(!de_arr[ctlr][log_unit]) {
+ char txt[16];
+ sprintf(txt, "ida/c%dd%d", ctlr,
+ log_unit);
+ de_arr[ctlr][log_unit] =
+ devfs_mk_dir(NULL,txt, NULL);
+ }
info_p->phys_drives =
sense_config_buf->ctlr_phys_drv;
info_p->drv_assign_map
@@ -2472,6 +2481,7 @@
cpqarray_remove_one_eisa(i);
}
}
+ devfs_unregister(devfs_find_handle(NULL, "ida", 0, 0, 0, 0));
remove_proc_entry("cpqarray", proc_root_driver);
}

--
Best regards,
Sergey S. Kostyliov <rathamahata@php4.ru>
Public PGP key: http://sysadminday.org.ru/rathamahata.asc
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