* but the code needs additional debugging.
*/
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/string.h>
* talking to a single sbp2 device at the same time (filesystem coherency,
* etc.). If you're running an sbp2 device that supports multiple logins,
* and you're either running read-only filesystems or some sort of special
- * filesystem supporting multiple hosts (one such filesystem is OpenGFS,
- * see opengfs.sourceforge.net for more info), then set exclusive_login
- * to zero. Note: The Oxsemi OXFW911 sbp2 chipset supports up to four
- * concurrent logins.
+ * filesystem supporting multiple hosts, e.g. OpenGFS, Oracle Cluster
+ * File System, or Lustre, then set exclusive_login to zero.
+ *
+ * So far only bridges from Oxford Semiconductor are known to support
+ * concurrent logins. Depending on firmware, four or two concurrent logins
+ * are possible on OXFW911 and newer Oxsemi bridges.
*/
static int exclusive_login = 1;
module_param(exclusive_login, int, 0644);
u32 model_id;
unsigned workarounds;
} sbp2_workarounds_table[] = {
- /* TSB42AA9 */ {
+ /* DViCO Momobay CX-1 with TSB42AA9 bridge */ {
.firmware_revision = 0x002800,
+ .model_id = 0x001010,
.workarounds = SBP2_WORKAROUND_INQUIRY_36 |
SBP2_WORKAROUND_MODE_SENSE_8,
},
scsi_id->ud = ud;
scsi_id->speed_code = IEEE1394_SPEED_100;
scsi_id->max_payload_size = sbp2_speedto_max_payload[IEEE1394_SPEED_100];
+ scsi_id->status_fifo_addr = CSR1212_INVALID_ADDR_SPACE;
atomic_set(&scsi_id->sbp2_login_complete, 0);
INIT_LIST_HEAD(&scsi_id->sbp2_command_orb_inuse);
INIT_LIST_HEAD(&scsi_id->sbp2_command_orb_completed);
INIT_LIST_HEAD(&scsi_id->scsi_list);
spin_lock_init(&scsi_id->sbp2_command_orb_lock);
- scsi_id->sbp2_lun = 0;
ud->device.driver_data = scsi_id;
scsi_id->status_fifo_addr = hpsb_allocate_and_register_addrspace(
&sbp2_highlevel, ud->ne->host, &sbp2_ops,
sizeof(struct sbp2_status_block), sizeof(quadlet_t),
- 0x010000000000ULL, CSR1212_ALL_SPACE_END);
- if (scsi_id->status_fifo_addr == ~0ULL) {
+ ud->ne->host->low_addr_space, CSR1212_ALL_SPACE_END);
+ if (scsi_id->status_fifo_addr == CSR1212_INVALID_ADDR_SPACE) {
SBP2_ERR("failed to allocate status FIFO address range");
goto failed_alloc;
}
SBP2_DMA_FREE("single query logins data");
}
- if (scsi_id->status_fifo_addr)
+ if (scsi_id->status_fifo_addr != CSR1212_INVALID_ADDR_SPACE)
hpsb_unregister_addrspace(&sbp2_highlevel, hi->host,
- scsi_id->status_fifo_addr);
+ scsi_id->status_fifo_addr);
scsi_id->ud->device.driver_data = NULL;
SBP2_DEBUG("length_max_logins = %x",
(unsigned int)scsi_id->query_logins_response->length_max_logins);
- SBP2_DEBUG("Query logins to SBP-2 device successful");
-
max_logins = RESPONSE_GET_MAX_LOGINS(scsi_id->query_logins_response->length_max_logins);
- SBP2_DEBUG("Maximum concurrent logins supported: %d", max_logins);
+ SBP2_INFO("Maximum concurrent logins supported: %d", max_logins);
active_logins = RESPONSE_GET_ACTIVE_LOGINS(scsi_id->query_logins_response->length_max_logins);
- SBP2_DEBUG("Number of active logins: %d", active_logins);
+ SBP2_INFO("Number of active logins: %d", active_logins);
if (active_logins >= max_logins) {
return -EIO;
}
}
+#define SBP2_PAYLOAD_TO_BYTES(p) (1 << ((p) + 2))
+
/*
* This function is called in order to determine the max speed and packet
* size we can use in our ORBs. Note, that we (the driver and host) only
static int sbp2_max_speed_and_size(struct scsi_id_instance_data *scsi_id)
{
struct sbp2scsi_host_info *hi = scsi_id->hi;
+ u8 payload;
SBP2_DEBUG_ENTER();
- /* Initial setting comes from the hosts speed map */
scsi_id->speed_code =
- hi->host->speed_map[NODEID_TO_NODE(hi->host->node_id) * 64 +
- NODEID_TO_NODE(scsi_id->ne->nodeid)];
+ hi->host->speed[NODEID_TO_NODE(scsi_id->ne->nodeid)];
/* Bump down our speed if the user requested it */
if (scsi_id->speed_code > max_speed) {
/* Payload size is the lesser of what our speed supports and what
* our host supports. */
- scsi_id->max_payload_size =
- min(sbp2_speedto_max_payload[scsi_id->speed_code],
- (u8) (hi->host->csr.max_rec - 1));
+ payload = min(sbp2_speedto_max_payload[scsi_id->speed_code],
+ (u8) (hi->host->csr.max_rec - 1));
+
+ /* If physical DMA is off, work around limitation in ohci1394:
+ * packet size must not exceed PAGE_SIZE */
+ if (scsi_id->ne->host->low_addr_space < (1ULL << 32))
+ while (SBP2_PAYLOAD_TO_BYTES(payload) + 24 > PAGE_SIZE &&
+ payload)
+ payload--;
HPSB_DEBUG("Node " NODE_BUS_FMT ": Max speed [%s] - Max payload [%u]",
NODE_BUS_ARGS(hi->host, scsi_id->ne->nodeid),
hpsb_speedto_str[scsi_id->speed_code],
- 1 << ((u32) scsi_id->max_payload_size + 2));
+ SBP2_PAYLOAD_TO_BYTES(payload));
+ scsi_id->max_payload_size = payload;
return 0;
}
return sbp2_status[8] & 0x3f; /* return scsi status */
}
-/*
- * This function is called after a command is completed, in order to do any necessary SBP-2
- * response data translations for the SCSI stack
- */
-static void sbp2_check_sbp2_response(struct scsi_id_instance_data *scsi_id,
- struct scsi_cmnd *SCpnt)
-{
- u8 *scsi_buf = SCpnt->request_buffer;
-
- SBP2_DEBUG_ENTER();
-
- if (SCpnt->cmnd[0] == INQUIRY && (SCpnt->cmnd[1] & 3) == 0) {
- /*
- * Make sure data length is ok. Minimum length is 36 bytes
- */
- if (scsi_buf[4] == 0) {
- scsi_buf[4] = 36 - 5;
- }
-
- /*
- * Fix ansi revision and response data format
- */
- scsi_buf[2] |= 2;
- scsi_buf[3] = (scsi_buf[3] & 0xf0) | 2;
- }
-}
-
/*
* This function deals with status writes from the SBP-2 device
*/
SCpnt->result = DID_ERROR << 16;
}
- /*
- * Take care of any sbp2 response data mucking here (RBC stuff, etc.)
- */
- if (SCpnt->result == DID_OK << 16) {
- sbp2_check_sbp2_response(scsi_id, SCpnt);
- }
-
/*
* If a bus reset is in progress and there was an error, complete
* the command as busy so that it will get retried.
sdev->skip_ms_page_8 = 1;
if (scsi_id->workarounds & SBP2_WORKAROUND_FIX_CAPACITY)
sdev->fix_capacity = 1;
+ if (scsi_id->ne->guid_vendor_id == 0x0010b9 && /* Maxtor's OUI */
+ (sdev->type == TYPE_DISK || sdev->type == TYPE_RBC))
+ sdev->allow_restart = 1;
return 0;
}
git.openpandora.org / pandora-kernel.git / blobdiff