summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/aic7xxx/aic79xx_osm.c
diff options
context:
space:
mode:
authorChristoph Hellwig <hch@lst.de>2005-08-15 13:28:46 +0200
committerJames Bottomley <jejb@mulgrave.(none)>2005-08-15 09:18:55 -0500
commit85a46523ff68aa0e4d2477c51075ffd9fc7e7a14 (patch)
treec465c274ffe0e4118ed46ad4e0e09dca975aeb1f /drivers/scsi/aic7xxx/aic79xx_osm.c
parentd46b1d549e1414d673e0ec18219f4f5e30d5f3f5 (diff)
downloadop-kernel-dev-85a46523ff68aa0e4d2477c51075ffd9fc7e7a14.zip
op-kernel-dev-85a46523ff68aa0e4d2477c51075ffd9fc7e7a14.tar.gz
[SCSI] aic79xx: sane pci probing
remove ahd_tailq and do sane pci probing. ported over from aic7xxx. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/aic7xxx/aic79xx_osm.c')
-rw-r--r--drivers/scsi/aic7xxx/aic79xx_osm.c108
1 files changed, 20 insertions, 88 deletions
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 2f15862..3feb739 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -60,11 +60,6 @@ static struct scsi_transport_template *ahd_linux_transport_template = NULL;
#include <linux/delay.h> /* For ssleep/msleep */
/*
- * Lock protecting manipulation of the ahd softc list.
- */
-spinlock_t ahd_list_spinlock;
-
-/*
* Bucket size for counting good commands in between bad ones.
*/
#define AHD_LINUX_ERR_THRESH 1000
@@ -303,13 +298,6 @@ static uint32_t aic79xx_pci_parity = ~0;
uint32_t aic79xx_allow_memio = ~0;
/*
- * aic79xx_detect() has been run, so register all device arrivals
- * immediately with the system rather than deferring to the sorted
- * attachment performed by aic79xx_detect().
- */
-int aic79xx_detect_complete;
-
-/*
* So that we can set how long each device is given as a selection timeout.
* The table of values goes like this:
* 0 - 256ms
@@ -387,7 +375,9 @@ static void ahd_linux_setup_tag_info_global(char *p);
static aic_option_callback_t ahd_linux_setup_tag_info;
static aic_option_callback_t ahd_linux_setup_iocell_info;
static int aic79xx_setup(char *c);
-static int ahd_linux_next_unit(void);
+
+static int ahd_linux_unit;
+
/****************************** Inlines ***************************************/
static __inline void ahd_linux_unmap_scb(struct ahd_softc*, struct scb*);
@@ -418,50 +408,6 @@ ahd_linux_unmap_scb(struct ahd_softc *ahd, struct scb *scb)
((((cmd)->device->id << TID_SHIFT) & TID) | (ahd)->our_id)
/*
- * Try to detect an Adaptec 79XX controller.
- */
-static int
-ahd_linux_detect(struct scsi_host_template *template)
-{
- struct ahd_softc *ahd;
- int found;
- int error = 0;
-
- /*
- * If we've been passed any parameters, process them now.
- */
- if (aic79xx)
- aic79xx_setup(aic79xx);
-
- template->proc_name = "aic79xx";
-
- /*
- * Initialize our softc list lock prior to
- * probing for any adapters.
- */
- ahd_list_lockinit();
-
-#ifdef CONFIG_PCI
- error = ahd_linux_pci_init();
- if (error)
- return error;
-#endif
-
- /*
- * Register with the SCSI layer all
- * controllers we've found.
- */
- found = 0;
- TAILQ_FOREACH(ahd, &ahd_tailq, links) {
-
- if (ahd_linux_register_host(ahd, template) == 0)
- found++;
- }
- aic79xx_detect_complete++;
- return found;
-}
-
-/*
* Return a string describing the driver.
*/
static const char *
@@ -760,6 +706,7 @@ ahd_linux_bus_reset(struct scsi_cmnd *cmd)
struct scsi_host_template aic79xx_driver_template = {
.module = THIS_MODULE,
.name = "aic79xx",
+ .proc_name = "aic79xx",
.proc_info = ahd_linux_proc_info,
.info = ahd_linux_info,
.queuecommand = ahd_linux_queue,
@@ -1072,7 +1019,7 @@ ahd_linux_register_host(struct ahd_softc *ahd, struct scsi_host_template *templa
host->max_lun = AHD_NUM_LUNS;
host->max_channel = 0;
host->sg_tablesize = AHD_NSEG;
- ahd_set_unit(ahd, ahd_linux_next_unit());
+ ahd_set_unit(ahd, ahd_linux_unit++);
sprintf(buf, "scsi%d", host->host_no);
new_name = malloc(strlen(buf) + 1, M_DEVBUF, M_NOWAIT);
if (new_name != NULL) {
@@ -1101,29 +1048,6 @@ ahd_linux_get_memsize(void)
}
/*
- * Find the smallest available unit number to use
- * for a new device. We don't just use a static
- * count to handle the "repeated hot-(un)plug"
- * scenario.
- */
-static int
-ahd_linux_next_unit(void)
-{
- struct ahd_softc *ahd;
- int unit;
-
- unit = 0;
-retry:
- TAILQ_FOREACH(ahd, &ahd_tailq, links) {
- if (ahd->unit == unit) {
- unit++;
- goto retry;
- }
- }
- return (unit);
-}
-
-/*
* Place the SCSI bus into a known state by either resetting it,
* or forcing transfer negotiations on the next command to any
* target.
@@ -2755,23 +2679,31 @@ static struct spi_function_template ahd_linux_transport_functions = {
.show_hold_mcs = 1,
};
-
-
static int __init
ahd_linux_init(void)
{
- ahd_linux_transport_template = spi_attach_transport(&ahd_linux_transport_functions);
+ int error = 0;
+
+ /*
+ * If we've been passed any parameters, process them now.
+ */
+ if (aic79xx)
+ aic79xx_setup(aic79xx);
+
+ ahd_linux_transport_template =
+ spi_attach_transport(&ahd_linux_transport_functions);
if (!ahd_linux_transport_template)
return -ENODEV;
+
scsi_transport_reserve_target(ahd_linux_transport_template,
sizeof(struct ahd_linux_target));
scsi_transport_reserve_device(ahd_linux_transport_template,
sizeof(struct ahd_linux_device));
- if (ahd_linux_detect(&aic79xx_driver_template) > 0)
- return 0;
- spi_release_transport(ahd_linux_transport_template);
- return -ENODEV;
+ error = ahd_linux_pci_init();
+ if (error)
+ spi_release_transport(ahd_linux_transport_template);
+ return error;
}
static void __exit
OpenPOWER on IntegriCloud