2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2008 QLogic Corporation
5 * See LICENSE.qla2xxx for copyright and licensing details.
9 * qla2x00_debounce_register
13 * port = register address.
18 static __inline__ uint16_t
19 qla2x00_debounce_register(volatile uint16_t __iomem *addr)
21 volatile uint16_t first;
22 volatile uint16_t second;
25 first = RD_REG_WORD(addr);
28 second = RD_REG_WORD(addr);
29 } while (first != second);
35 qla2x00_poll(scsi_qla_host_t *ha)
39 local_irq_save(flags);
40 ha->isp_ops->intr_handler(0, ha);
41 local_irq_restore(flags);
44 static __inline__ scsi_qla_host_t *
45 to_qla_parent(scsi_qla_host_t *ha)
47 return ha->parent ? ha->parent : ha;
51 * qla2x00_issue_marker() - Issue a Marker IOCB if necessary.
53 * @ha_locked: is function called with the hardware lock
55 * Returns non-zero if a failure occurred, else zero.
58 qla2x00_issue_marker(scsi_qla_host_t *ha, int ha_locked)
60 /* Send marker if required */
61 if (ha->marker_needed != 0) {
63 if (__qla2x00_marker(ha, 0, 0, MK_SYNC_ALL) !=
65 return (QLA_FUNCTION_FAILED);
67 if (qla2x00_marker(ha, 0, 0, MK_SYNC_ALL) !=
69 return (QLA_FUNCTION_FAILED);
71 ha->marker_needed = 0;
76 static inline uint8_t *
77 host_to_fcp_swap(uint8_t *fcp, uint32_t bsize)
79 uint32_t *ifcp = (uint32_t *) fcp;
80 uint32_t *ofcp = (uint32_t *) fcp;
81 uint32_t iter = bsize >> 2;
84 *ofcp++ = swab32(*ifcp++);
90 qla2x00_is_reserved_id(scsi_qla_host_t *ha, uint16_t loop_id)
92 if (IS_FWI2_CAPABLE(ha))
93 return (loop_id > NPH_LAST_HANDLE);
95 return ((loop_id > ha->last_loop_id && loop_id < SNS_FIRST_LOOP_ID) ||
96 loop_id == MANAGEMENT_SERVER || loop_id == BROADCAST);