[net-next-2.6.git] / drivers / scsi / qla2xxx / qla_inline.h

/*
 * QLogic Fibre Channel HBA Driver
 * Copyright (c)  2003-2008 QLogic Corporation
 *
 * See LICENSE.qla2xxx for copyright and licensing details.
 */

/*
 * qla2x00_debounce_register
 *      Debounce register.
 *
 * Input:
 *      port = register address.
 *
 * Returns:
 *      register value.
 */
static __inline__ uint16_t
qla2x00_debounce_register(volatile uint16_t __iomem *addr)
{
	volatile uint16_t first;
	volatile uint16_t second;

	do {
		first = RD_REG_WORD(addr);
		barrier();
		cpu_relax();
		second = RD_REG_WORD(addr);
	} while (first != second);

	return (first);
}

static inline void
qla2x00_poll(struct rsp_que *rsp)
{
	unsigned long flags;
	struct qla_hw_data *ha = rsp->hw;
	local_irq_save(flags);
	ha->isp_ops->intr_handler(0, rsp);
	local_irq_restore(flags);
}

static inline uint8_t *
host_to_fcp_swap(uint8_t *fcp, uint32_t bsize)
{
       uint32_t *ifcp = (uint32_t *) fcp;
       uint32_t *ofcp = (uint32_t *) fcp;
       uint32_t iter = bsize >> 2;

       for (; iter ; iter--)
               *ofcp++ = swab32(*ifcp++);

       return fcp;
}

static inline int
qla2x00_is_reserved_id(scsi_qla_host_t *vha, uint16_t loop_id)
{
	struct qla_hw_data *ha = vha->hw;
	if (IS_FWI2_CAPABLE(ha))
		return (loop_id > NPH_LAST_HANDLE);

	return ((loop_id > ha->max_loop_id && loop_id < SNS_FIRST_LOOP_ID) ||
	    loop_id == MANAGEMENT_SERVER || loop_id == BROADCAST);
};
Commit	Line	Data
	1	/*
	2	* QLogic Fibre Channel HBA Driver
	3	* Copyright (c) 2003-2008 QLogic Corporation
	4	*
	5	* See LICENSE.qla2xxx for copyright and licensing details.
	6	*/
	7
	8	/*
	9	* qla2x00_debounce_register
	10	* Debounce register.
	11	*
	12	* Input:
	13	* port = register address.
	14	*
	15	* Returns:
	16	* register value.
	17	*/
	18	static __inline__ uint16_t
	19	qla2x00_debounce_register(volatile uint16_t __iomem *addr)
	20	{
	21	volatile uint16_t first;
	22	volatile uint16_t second;
	23
	24	do {
	25	first = RD_REG_WORD(addr);
	26	barrier();
	27	cpu_relax();
	28	second = RD_REG_WORD(addr);
	29	} while (first != second);
	30
	31	return (first);
	32	}
	33
	34	static inline void
	35	qla2x00_poll(struct rsp_que *rsp)
	36	{
	37	unsigned long flags;
	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);
	42	}
	43
	44	static inline uint8_t *
	45	host_to_fcp_swap(uint8_t *fcp, uint32_t bsize)
	46	{
	47	uint32_t ifcp = (uint32_t ) fcp;
	48	uint32_t ofcp = (uint32_t ) fcp;
	49	uint32_t iter = bsize >> 2;
	50
	51	for (; iter ; iter--)
	52	ofcp++ = swab32(ifcp++);
	53
	54	return fcp;
	55	}
	56
	57	static inline int
	58	qla2x00_is_reserved_id(scsi_qla_host_t *vha, uint16_t loop_id)
	59	{
	60	struct qla_hw_data *ha = vha->hw;
	61	if (IS_FWI2_CAPABLE(ha))
	62	return (loop_id > NPH_LAST_HANDLE);
	63
	64	return ((loop_id > ha->max_loop_id && loop_id < SNS_FIRST_LOOP_ID) \|\|
	65	loop_id == MANAGEMENT_SERVER \|\| loop_id == BROADCAST);
	66	};