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(struct rsp_que *rsp)
38 struct qla_hw_data *ha = rsp->hw;
39 local_irq_save(flags);
40 ha->isp_ops->intr_handler(0, rsp);
41 local_irq_restore(flags);
45 * qla2x00_issue_marker() - Issue a Marker IOCB if necessary.
47 * @ha_locked: is function called with the hardware lock
49 * Returns non-zero if a failure occurred, else zero.
52 qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked)
54 /* Send marker if required */
55 if (vha->marker_needed != 0) {
57 if (__qla2x00_marker(vha, 0, 0, MK_SYNC_ALL) !=
59 return (QLA_FUNCTION_FAILED);
61 if (qla2x00_marker(vha, 0, 0, MK_SYNC_ALL) !=
63 return (QLA_FUNCTION_FAILED);
65 vha->marker_needed = 0;
70 static inline uint8_t *
71 host_to_fcp_swap(uint8_t *fcp, uint32_t bsize)
73 uint32_t *ifcp = (uint32_t *) fcp;
74 uint32_t *ofcp = (uint32_t *) fcp;
75 uint32_t iter = bsize >> 2;
78 *ofcp++ = swab32(*ifcp++);
84 qla2x00_is_reserved_id(scsi_qla_host_t *vha, uint16_t loop_id)
86 struct qla_hw_data *ha = vha->hw;
87 if (IS_FWI2_CAPABLE(ha))
88 return (loop_id > NPH_LAST_HANDLE);
90 return ((loop_id > ha->max_loop_id && loop_id < SNS_FIRST_LOOP_ID) ||
91 loop_id == MANAGEMENT_SERVER || loop_id == BROADCAST);