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;
&sbp2_highlevel, ud->ne->host, &sbp2_ops,
sizeof(struct sbp2_status_block), sizeof(quadlet_t),
ud->ne->host->low_addr_space, CSR1212_ALL_SPACE_END);
- if (scsi_id->status_fifo_addr == ~0ULL) {
+ 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;
}
}
+#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();
/* 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;
}